CN116059580A - Rotary bell with adjustable bell head weight - Google Patents

Abstract

The application discloses a turning bell with adjustable bell head weight, which comprises a bell rod mechanism and bell heads with adjustable weight, wherein the bell heads are respectively and rotatably connected to two ends of the bell rod mechanism, two ends of the bell rod mechanism are respectively provided with a push lock sliding key, the push lock sliding key is in sliding connection with the bell rod mechanism, one side of any bell head facing the other bell head is provided with a lock tongue hole, and the push lock sliding key comprises a lock tongue; the bell head comprises a balance weight seat and a balance weight block, the balance weight seat is provided with a plurality of balance weight bins which are circumferentially distributed along the axis of the balance weight seat, the balance weight bins are used for accommodating the balance weight block, the balance weight bins are provided with inlets and outlets for the balance weight block to enter and exit, the inlets and the outlets are located at one end of the balance weight seat, the balance weight seat is provided with a claw synchronous telescopic mechanism, and the claw synchronous telescopic mechanism comprises a plurality of claws which synchronously slide and stretch, and the balance weight block is locked in the balance weight bins at least through one claw. The inertia of the bell head rotation is utilized to increase the interest of the bell rotation training, and the bell rotation training function is expanded.

Description

Rotating bell with adjustable head weight

technical field

The invention generally relates to the field of body-building equipment, in particular to a rotating bell capable of adjusting the weight of the bell head.

Background technique

Dumbbells are a kind of auxiliary equipment for muscle training. Dumbbells include dumbbell bars and dumbbell heads. Generally, the dumbbell bar and the dumbbell head are fixedly connected, that is, when the dumbbell is used for muscle training, the dumbbell head will not rotate relative to the dumbbell bar.

When using dumbbells for training, the training function is relatively single, and can only be used simply as dumbbells.

Contents of the invention

In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a rotating bell with rich training functions and adjustable head weight.

In the first aspect, the rotary bell with adjustable bell head weight of the present invention includes a bell bar mechanism and a bell head with adjustable weight, the two ends of the bell bar mechanism are respectively connected with the bell head, and the bell bar mechanism The two ends are respectively provided with push-lock slide keys, and the push-lock slide keys are slidably connected with the bell bar mechanism, and the side of any one of the bell heads facing the other bell head is provided with a deadbolt hole, and the push lock slide key is provided with a bolt hole. The lock slide key includes a dead bolt;

The push lock sliding key slides relative to the bell bar mechanism, so that the dead bolt enters or leaves the dead bolt hole;

the deadbolt enters the deadbolt hole to prevent the bell head from rotating relative to the bell bar mechanism,

The bell head includes a counterweight seat and a counterweight block, the counterweight seat is provided with a plurality of counterweight bins arranged circumferentially along its axis, the counterweight bins are used to accommodate the counterweight blocks, and the counterweight bins are arranged The heavy warehouse is provided with an inlet and outlet for the counterweight to enter and exit. The inlet and outlet are located at one end of the counterweight seat. The counterweight seat is provided with a jaw synchronous telescopic mechanism. The jaw synchronous telescopic mechanism includes multiple Synchronous sliding and telescopic claws, the counterweight is locked in the counterweight bin by at least one of the claws.

According to the technical solution provided by the embodiment of the present application, by sliding the lock sliding key, the lock tongue enters the lock tongue hole, the lock tongue can stop the bell head, prevent the bell head from rotating relative to the bell bar mechanism, and the rotating bell can be used as an ordinary dumbbell Use; by sliding the sliding key of the push lock, the dead bolt is separated from the dead bolt hole, the dead bolt no longer stops the bell head, and the bell head can rotate relative to the bell bar mechanism, and the rotating bell can be used as an abdominal wheel, or it can be used on the When using the weight of the bell itself for muscle training, move the bell head to make the bell head rotate, or when lifting the bell head, use the inertia of the bell head to rotate the bell head, and use the inertia of the bell head to increase the training effect of using the bell head It is interesting and expands the training function of turning the bell.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is the structure schematic diagram of the bell of the adjustable bell head weight of the embodiment of the present invention;

Fig. 2 is the schematic structural diagram of the cooperation between the bell bar mechanism and the positioning plate of the adjustable bell head weight of the embodiment of the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 2;

Fig. 4 is the front view of the handle of the adjustable bell head weight of the embodiment of the present invention;

Fig. 5 is the left side view of the handle of the adjustable bell head weight of the embodiment of the present invention;

Fig. 6 is the perspective view of the handle of the rotary bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 7 is a sectional view along line B-B in Fig. 4;

Fig. 8 is the front view of the main shaft of the adjustable bell head weight of the embodiment of the present invention;

Fig. 9 is a perspective view of the main shaft of the bell head weight adjustable bell according to an embodiment of the present invention;

Fig. 10 is a structural schematic diagram of a positioning plate of a bell head whose weight can be adjusted according to an embodiment of the present invention;

Fig. 11 is the front view of the push-lock sliding key of the rotary bell with adjustable bell head weight according to an embodiment of the present invention;

Fig. 12 is the top view of the push-lock sliding key of the rotary bell whose weight of the bell head can be adjusted according to an embodiment of the present invention;

Fig. 13 is the right side view of the push-lock sliding key of the rotary bell with adjustable bell head weight according to an embodiment of the present invention;

Fig. 14 is a perspective view of the sliding key for pushing the lock of the rotary bell with adjustable bell head weight according to an embodiment of the present invention;

Fig. 15 is the front view of the bell head of the adjustable bell head weight of the embodiment of the present invention;

Fig. 16 is the right side view of the bell head of the bell head of the adjustable bell head weight according to the embodiment of the present invention;

Fig. 17 is a perspective view of the bell head of the bell head whose weight can be adjusted according to the embodiment of the present invention;

Fig. 18 is a sectional view along line A-A in Fig. 15;

Fig. 19 is a sectional view along line B-B in Fig. 16;

Fig. 20 is a structural schematic diagram of the pressing column of the bell head whose weight can be adjusted according to the embodiment of the present invention;

Fig. 21 is the front view of the counterweight of the rotary bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 22 is the right side view of the counterweight of the rotary bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 23 is a schematic structural view of the jaws of the rotary bell that can adjust the weight of the bell head according to the embodiment of the present invention;

Fig. 24 is a structural schematic diagram of the cooperation of the base shield, base and top cover of the rotating bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 25 is an exploded schematic diagram of the structure of the base shield, base and top cover of the rotating bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 26 is a structural schematic diagram of the cooperation between the base and the top cover of the rotating bell whose weight of the bell head can be adjusted according to an embodiment of the present invention;

Fig. 27 is an exploded schematic diagram of the structure of the base and the top cover of the rotating bell with adjustable bell head weight according to the embodiment of the present invention;

Fig. 28 is a structural schematic diagram of the top cover of the adjustable bell head weight of the embodiment of the present invention;

Fig. 29 is a schematic structural view of the base of the rotating bell whose weight of the bell head can be adjusted according to an embodiment of the present invention;

Fig. 30 is a schematic structural view of the base shield of the rotating bell whose head weight can be adjusted according to an embodiment of the present invention.

Detailed ways

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to Fig. 1, 3, 17 and 18, the rotary bell with adjustable bell head weight of the present invention comprises bell bar mechanism 100 and adjustable weight bell head 200, and the two ends of bell bar mechanism 100 are respectively connected with bell head 200, the two ends of the bell bar mechanism 100 are respectively provided with push lock sliding keys 300, and the push lock slide keys 300 are slidably connected with the bell bar mechanism 100, and the side of any bell head 200 facing the other bell head 200 is provided with a deadbolt hole 210, push The lock slide key 300 includes a lock tongue 321; push the lock slide key 300 to slide relative to the bell bar mechanism 100, so that the lock tongue 321 enters or breaks away from the dead bolt hole 210; the lock tongue 321 enters the dead bolt hole 210 to prevent the bell head 200 from When the bell bar mechanism 100 rotates, the bell head includes a counterweight seat 240 and a counterweight block 600. The counterweight seat 240 is provided with a plurality of counterweight bins 241 arranged circumferentially along its axis, and the counterweight bins 241 are used to accommodate the counterweight blocks. 600, the counterweight bin 241 is provided with an inlet and outlet 2415 for the counterweight 600 to enter and exit. The inlet and outlet 2415 are located at one end of the counterweight seat 240. By sliding the retractable claws 510 , the counterweight 240 is locked in the counterweight bin 241 through at least one claw 510 .

In the embodiment of the present invention, the bell bar mechanism is held by the user, and the bell head is the weight concentration part of the bell. Both ends of the bell bar mechanism are respectively rotatably connected with bell heads, so that when the user holds the bell bar mechanism, he can maintain balance and reduce the difficulty of holding. The bell bar mechanism is slidably connected with a push lock slide key, which can be a push lock slide key or a plurality of push lock slide keys when cooperating with a bell head; when multiple push lock slide keys are provided, multiple push lock slide keys Pushing the lock slider can be a synchronous or asynchronous action. The push lock slide key slides relative to the bell bar mechanism, thereby driving the lock bolt to slide. The push lock slide key can directly drive the movement of the lock tongue, and can be but not limited to the fixed connection or integral formation of the lock tongue and push lock slide key; the push lock slide key The movement of the deadbolt can also be driven indirectly, and the movement of the deadbolt can be driven by pushing the sliding key through a transmission mechanism, but not limited to.

The push lock sliding key includes a dead bolt, and the bell head is provided with a dead bolt hole. When the push lock sliding key slides relative to the bell bar mechanism, it drives the dead bolt to extend, so that the dead bolt is inserted into the dead bolt hole, and the dead bolt can stop the bell. The head rotates relative to the bell bar mechanism. When using the rotating bell, the bell head will not rotate relative to the bell bar mechanism, and the rotating bell is used as a common dumbbell. Push the lock sliding key to slide relative to the bell bar mechanism, and drive the lock tongue to retract, so that the lock tongue is out of the lock tongue hole, and the bell head can rotate relative to the bell bar mechanism, and the user can use the rotating bell as an abdominal wheel. Hold the bell bar mechanism, place the bell head on the ground, and roll the bell head on the ground to carry out muscle training. It is also possible to move the bell head to rotate the bell head when using the weight of the bell itself for muscle training, or to use the inertia of the bell head itself to rotate the bell head when lifting the bell head, and to increase the use of the rotation by using the inertia of the bell head to rotate. The fun of muscle training with bells expands the training function of turning bells.

The counterweight seat is provided with a plurality of counterweight bins arranged circumferentially along its axis, and the weight of the bell head is adjusted by placing the counterweight blocks in the counterweight bins. The counterweights enter or leave the counterweight compartment from the inlet and outlet. The user can place different numbers of counterweights on the counterweight seat according to actual conditions. The counterweight seat is provided with a claw synchronous telescopic mechanism. The claw synchronous telescopic mechanism includes a plurality of synchronous sliding and telescopic claws. The claws and the counterweight seat are slidingly connected. The counterweight bin locks the counterweight to prevent the counterweight from breaking away from the counterweight bin, thereby ensuring safety. Multiple claws are synchronously retractable. After multiple weights are put into multiple weight bins, the claws are synchronously extended to lock the weights; when it is necessary to take out the weights in the weight bins, the jaws are retracted synchronously In the counterweight seat, the counterweight in the counterweight compartment can be taken out, and the operation is simple. It is possible, but not limited to, one counterweight bin to lock one counterweight.

Referring to FIG. 1 , further, the bell bar mechanism 100 includes a main shaft 110 and a handle 120 , the main shaft 110 passes through the handle 120 and is rotationally connected with the handle 120 , and the bell head 200 is detachably fixedly connected to the end of the main shaft 110 .

In the embodiment of the present invention, the main shaft is detachably fixedly connected to the bell head, but not limited to, the bell head can be detachably fixedly connected to the main shaft through the first bolt, which is convenient for packaging and transportation of the bell. When the bell head is damaged, the bell head can also be replaced, which reduces the use cost. The bell bar mechanism includes a main shaft and a handle, the main shaft passes through the handle and is rotationally connected with the handle, and the main shaft part is located inside the handle, which can effectively protect the main shaft. Through the rotating connection between the main shaft and the handle, the main shaft and the bell head are detachably fixedly connected to realize the rotation of the bell head relative to the handle. When using the bell, the handle can be held, and the handle will not rotate relative to the user's hand, ensuring the rotation connection stability.

Referring to FIGS. 1-3 , further, a plurality of bearings 130 are disposed between the main shaft 110 and the handle 120 .

In the embodiment of the present invention, the bearing can keep a certain distance between the main shaft and the handle to avoid unnecessary friction between the main shaft and the handle when the main shaft rotates. At the same time, the frictional damping of the bearing is small and the structure is simple, which ensures that the main shaft The stability of the rotational connection between the handle and the handle. It is possible, but not limited to, that the number of bearings is two, taking into account both manufacturing cost and stability.

Further, the main shaft 130 is set as a stepped shaft, the main shaft 130 is provided with a first annular protrusion 111 and shaft heads 112 located on both sides of the first annular protrusion 111 , between the first annular protrusion 111 and the shaft head 112 It is the shaft shoulder 113, the bearing 130 is sleeved on the shaft head 112, the shaft shoulder 113 is used to stop the bearing 130, the shaft head 112 is sleeved with a retaining ring 114, one end of the retaining ring 114 is against the inner ring 131 of the bearing, and the retaining ring 114 The other end is against the bell head 200.

In an embodiment of the present invention, the main shaft is provided with a first annular protrusion, and both sides of the first annular protrusion form shaft shoulders, and the shaft shoulders are used to stop the bearing, align the bearing, and align the bearing axially. play a supporting role. Wherein the first annular protrusion abuts against the inner ring of the bearing to avoid unnecessary wear between the bearing and the first annular protrusion when the main shaft rotates relative to the handle. The shaft head is sleeved with a retaining ring. One end of the retaining ring is against the inner ring of the bearing, and the other end of the retaining ring is against the bell head. distance between. Of course, the second annular protrusion 127 can be set on the side of the handle facing the first annular protrusion, and the second annular protrusion 127 is against the outer ring 132 of the bearing, and the bearing, the first annular protrusion and the The cooperation of the second ring-shaped protrusion can prevent the handle from moving in the radial direction relative to the main shaft, and cooperate with the retaining ring to ensure that there is a certain gap between the handle and the bell head, so as to avoid the handle and the bell when using the bell. Unnecessary friction between the heads increases the service life of the bell.

Referring to FIGS. 4 to 7 , further, the push lock slide key 300 is located between the retaining ring 114 and the handle 120 , the push lock slide key 300 includes a sliding seat 310 , the slide seat 310 is provided with at least one push lock mechanism 320 , and the push lock mechanism 320 It includes a lock tongue 321 and a first stopper 322. The lock tongue 321 is located at one end of the sliding seat 310 facing the bell head 200. The lock tongue 321 protrudes from the end of the sliding seat 310. The first stopper 322 is located at the end of the sliding seat 310. Facing the side of the handle 120, the first stopper 322 protrudes from the side of the sliding seat 310, the first stopper 322 is connected to the sliding seat 310 through the elastic connecting part 323, and the handle 120 is provided with the first stopper 322. protruding first through hole 121 .

In the embodiment of the present invention, the sliding key for pushing the lock is located between the retaining ring and the handle, and the sliding key for pushing the locking includes a sliding seat, which may be but not limited to be arranged in a ring shape, and the sliding seat is sleeved on the retaining ring, and the bell The head can stop the sliding seat, which ensures the stability of the sliding connection between the sliding seat and the bell bar mechanism.

The push lock mechanism includes a lock tongue and a first stopper. The lock tongue is located at the end of the sliding seat facing the bell head. By pushing the push lock sliding key to slide relative to the bell bar mechanism, the lock tongue will protrude from the handle and the retaining ring. And extend into the bolt hole. The first stop part protrudes from the side of the sliding seat facing the handle, and the first stop part is connected with the sliding seat through an elastic connection part. The position of the first stop part can be changed by pressing the first stop part. The first stopper, under the action of the elastic force of the elastic connection part, the first stopper will reset. The handle is provided with a first through hole, and the first stop part protrudes from the first through hole, which is convenient for the user to press the first stop part to push the push lock sliding key to move.

Further, a stop protrusion 123 is arranged in the first through hole 121, and the stop protrusion 123 divides the first through hole 121 into a first feather key compartment 124 and a second feather key compartment 125, and the stop protrusion 123 is used for stop the first stop portion 322 .

In an embodiment of the present invention, a stop protrusion is arranged in the first through hole, and the stop protrusion divides the first through hole into a first feather key compartment and a second feather key compartment. When the first stop portion is located at the first feather key compartment, the stop projection can stop the first stop portion, preventing the first stop portion from leaving the first feather key compartment, thereby preventing the push lock feather key from moving relative to the first feather key compartment. The bell bar mechanism slides. Similarly, when the first stopper is located in the second feather key compartment, the stop protrusion can stop the first stopper part, preventing the first stopper part from leaving the second feather key compartment, thereby avoiding the sliding of the push lock. The key slides relative to the bell bar mechanism. Certainly, when it is necessary to adjust the position of the first stopper, the elastic connecting part may be deformed by pressing the first stopper, so that the first stopper is detached from the stopper protrusion, thereby sliding the push lock slide key , to switch whether the first stop is in the first feather key compartment or the second feather key compartment. Referring to Figures 2 to 4, when the first stopper is located at the first feather key compartment, the lock tongue extends into the lock tongue hole, and the stop protrusion can prevent the first stopper from breaking away from the first feather key compartment, that is, to avoid The deadbolt disengages from the deadbolt hole. When the first stopper is located in the second sliding key compartment, the deadbolt is disengaged from the deadbolt hole, and the stop protrusion can prevent the first stopper from breaking away from the second sliding key compartment, that is, prevent the deadbolt from entering the deadbolt hole.

Further, the side of the first stop portion 322 facing away from the sliding seat 310 is provided with a pressing protrusion 326 , and the first through hole 121 is provided with two opposite stop protrusions 123 , between the two stop protrusions 123 There is a gap 126 for the pressing protrusion 326 to pass through.

In an embodiment of the present invention, the first stopper is provided with a pressing protrusion. When the position of the first stopper needs to be changed, the pressing protrusion can be pressed to drive the elastic connecting part to deform, so that the first stopper The stop part disengages from the stopper of the stopper protrusion, so that the lock sliding key can be slid and pushed, so that the deadbolt is disengaged or enters the deadbolt hole. The pressing protrusion can facilitate the user to press the first stopper portion, reducing the difficulty of pressing. Two opposite stop protrusions are arranged in the first through hole, and there is a gap between the two stop protrusions. When the position of the first stop part needs to be changed, the pressing protrusion is pressed so that the first stop The stop part breaks away from the stop of the stop protrusion, and the pressing protrusion can pass through the gap between the two stop protrusions, which reduces the difficulty of operation and avoids excessive deformation of the elastic connection part, ensuring the push lock Slider key reliability.

Referring to Figures 8-10, further, the bell head 200 is detachably fixedly connected to the positioning plate 220, the positioning plate 220 is provided with a second through hole 221, the shaft head 112 is partially located in the second through hole 221, and also includes a first bolt 222, the first bolt 222 is screwed to the end of the shaft head 112, the first bolt 222 is sleeved with a stopper 223, the diameter of the stopper 223 is larger than the diameter of the second through hole 221, and the stopper 223 is located on the positioning plate 220 facing away from the stopper One side of circle 114 .

In the embodiment of the present invention, the positioning plate is detachably fixedly connected to the shaft head through the first bolt, which has a simple structure and is easy to assemble and disassemble. The positioning plate is provided with a second through hole, and the shaft head part is located in the second through hole. When using the first bolt to fix, put the blocking piece on the first bolt, and then screw the first bolt on the shaft head. The stopper of the baffle, the head of the first bolt cannot pass through the second through hole. When the first bolt is tightened, the baffle ring is tightly against the positioning plate. At this time, there is still a gap between the baffle and the shaft head, which can ensure that the first bolt Fix the reliability of the positioning plate and the shaft head to avoid loosening of the positioning plate and the shaft head.

Further, the bell head 200 is sleeved with a buffer ring 230 .

In the embodiment of the present invention, the bell head is sleeved with a buffer ring. When the bell is used as an abdominal wheel, the buffer ring can increase the friction with the ground, so that the bell head can roll smoothly on the ground. At the same time, the buffer ring can play a buffering role to avoid the rigid contact between the bell head and the ground. It is possible, but not limited to, to provide an installation groove on the circumference of the bell head, and install the buffer ring in the installation groove to ensure the stability of the socket between the buffer ring and the bell head. It is possible, but not limited to, to set a plurality of anti-slip protrusions at intervals on the outer surface of the buffer ring to further increase the friction between the buffer zone and the ground.

Referring to FIGS. 11-14 , further, the push lock sliding key 300 is provided with a sliding protrusion 312 , and the bell bar mechanism 100 is provided with a sliding groove 122 arranged along its length direction, and the sliding protrusion 312 is slidably matched with the sliding groove 122 .

In an embodiment of the present invention, the sliding groove is arranged along the length direction of the bell bar mechanism, and the sliding protrusion is slidably matched with the sliding groove, that is to say, the sliding key for pushing the lock can only slide along the length direction of the bell bar mechanism, so as to avoid the locking of the locking bolt. After entering the bolt hole, when locking the head of the bell, or using the rotating bell for muscle training, push the lock sliding key to rotate along with the head of the bell. It is possible, but not limited to, that a plurality of sliding protrusions are provided on the outer side of the sliding seat, and the plurality of sliding protrusions are symmetrically distributed on the sliding seat in a mirror-like manner, so that the force on the sliding seat is more balanced.

Further, the sliding seat 310 is provided with two push-lock mechanisms 320 , and the two push-lock mechanisms 320 are symmetrically distributed on the sliding seat 310 in a mirror image.

In the embodiment of the present invention, the sliding seat is provided with two push-lock mechanisms. When it is necessary to slide the push-lock sliding key and simultaneously press the two mirror-symmetrical first stoppers, so that the elastic connecting part is deformed, the sliding seat It can bear force on both sides, and the force is more balanced. The pressing force on the first stop part is from the outside of the sliding seat to the inside of the sliding seat, and the first stop part moves toward the direction close to the inside of the sliding seat. Under force, the sliding seat is not easy to deviate from the position, which can reduce unnecessary friction between the sliding seat and the bell bar during the sliding process of the push lock sliding key.

Further, a side of the locking tongue 321 close to the sliding seat 310 extends outward to form a reinforcing portion 324 .

In the embodiment of the present invention, when the deadbolt extends into the deadbolt hole and the deadbolt stops the rotation of the bell head, the bell head will exert a thrust on the dead bolt, and the side of the dead bolt close to the sliding seat extends outward to form a reinforcement , can improve the strength of the dead bolt, and improve the service life of the sliding key of the push lock.

Further, the corner of the locking tongue 321 away from the sliding seat 310 is set as a rounded corner 325 .

In an embodiment of the present invention, a bolt hole is provided on the bell head, and when the bell head is rotated until the bolt hole is facing the lock tongue, the lock slide key is slid and pushed, so that the bolt can be inserted into the bolt hole, and the bolt is moved away from the bolt hole. The corners on one side of the sliding seat are set as rounded corners, and the rounded corners are convenient for the deadbolt to be inserted into the deadbolt hole.

Further, the sliding seat 310 is provided with a groove 311 , and the first stop portion 322 and the elastic connecting portion 323 are both placed in the groove 311 .

In an embodiment of the present invention, the first stopper part is located in the groove, and the first stopper part is located outside the groove, so that the first stopper part can protrude from the side of the sliding seat so that it is in contact with the stopper protrusion. to cooperate. The elastic connecting part is located in the groove to avoid leakage of the elastic connecting part and avoid unnecessary friction between the elastic connecting part and other structures when the sliding key is pushed and locked.

Referring to Figures 15 to 23, further, the claw synchronous telescopic mechanism includes a push column 410 slidingly connected to the counterweight base 240, one end of the press column 410 is a pressing end 411, and the counterweight base 240 is provided with a push column 410 Sliding sliding cavity 242, one end of the sliding cavity 242 is provided with a first opening 2421 for the pressing end 411 to be exposed, the sliding cavity 242 is provided with a first spring 412, the first spring 412 provides elastic force for the pressing end 411 to expose the first opening 2421 The side of the push column 410 is provided with a first annular mating surface 4131 and a second annular mating surface 4141, the diameter of the first annular mating surface 4131 is smaller than the diameter of the second annular mating surface 4141, and the counterweight seat 240 is provided with a plurality of counterweights. The weight bin 241 and the counterweight base 240 are slidably connected with a plurality of claws 510 , the claws 510 extend into the counterweight bin 241 , and the end of the claws 510 close to the push post 410 moves along the side of the push post 410 .

In the embodiment of the present invention, the pressing column is slidably connected to the counterweight base, and the sliding direction of the pressing column relative to the counterweight base may be perpendicular to the end surface of the counterweight base. The counterweight seat is provided with a sliding cavity for the sliding of the pressing column, and the sliding cavity can limit the sliding range of the pressing column to prevent the pressing column from detaching from the counterweight seat. Referring to FIG. 1 , one end of the pressing column is the pressing end, and the pressing end is exposed from the first opening to the outside of the weight seat. The pressing end may be located on the side of the bell head 200 facing away from the bell bar 100 , which is convenient for the user to press , and at the same time prevent the pressing end from interfering with the user holding the bell bar 100 . A first spring is provided in the sliding cavity, and the first spring provides elastic force for the pressing end to expose the first opening. When the user presses the pressing column to make the pressing end retract to the first opening, the first spring will deform and store energy. When the user releases the pressing column, the first spring releases the stored energy, so that the pressing end protrudes from the first opening, which is convenient for the user to press. At the same time, when the pressing end is not pressed by external force, the first spring makes the second The ring-shaped mating surface is facing the claws, so that the claws keep extending into the position of the counterweight compartment, and the claws clamp the counterweights in the counterweight compartment, so as to avoid the withdrawal of the claws and the detachment of the counterweights during muscle training with dumbbells The counterweight compartment ensures the safety of muscle training.

The side of the pressing post is provided with a first annular mating surface and a second annular mating surface, the diameter of the first annular mating surface is smaller than the diameter of the second annular mating surface, and one end of the claw close to the pressing post is along the Press the side of the column for movement. That is, by pressing the push post, the push post slides relative to the counterweight seat, and the position of the push post facing the claw can be changed. Along with the movement of the pressing column, the claw will change the distance from the central axis of the pressing column. When the claw is facing the first annular mating surface, the claw is in a position close to the central axis of the push column, and the end of the claw far away from the push column is separated from the counterweight compartment, and the claw will not block the counterweight located in the counterweight compartment The counterweight block can freely enter and exit the counterweight compartment; when the claw is facing the second annular mating surface, the claw is at a position away from the central axis of the pressing column, and the end of the claw away from the pressing column extends into the counterweight compartment. The claws block the counterweights located in the counterweight compartment, and the counterweights cannot be separated from the counterweight compartment. By pressing the pressing column, the end of the claw close to the pressing column moves along the side of the pressing column, so that synchronous expansion and contraction of multiple claws is realized, and the disassembly and assembly time of the counterweight is shortened.

Further, the end of the sliding chamber 242 close to the first opening 2421 is provided with a second stopper 2422, the side of the push column 410 is provided with a third annular protrusion 413, and the first annular mating surface 4131 is a third annular protrusion 413, the second stop part 2422 stops the third annular protrusion 413, the end of the sliding cavity 242 away from the first opening 2421 is provided with a third stop part 2423, and the third stop part 2423 stops the push column 410.

In the embodiment of the present invention, by setting the third annular protrusion, the first annular mating surface can be formed, and the second stopper can stop the third annular protrusion, preventing the push column from being provided with the sliding cavity. One side of the first opening is out of the sliding cavity. The third stopper stops the push post to prevent the push post from leaving the slide cavity from the side of the slide cavity that is not provided with the first opening. It may be, but not limited to, that the third stop part stops the end of the push column away from the first opening. At the same time, the third stopper stops the push column, which can limit the position of the pressing end shrinking into the sliding cavity, so as to prevent the pressing end from excessively shrinking into the sliding cavity, resulting in the pressing end not being able to protrude. At the same time, excessive deformation of the first spring can also be avoided, prolonging the service life of the first spring.

Further, the side of the first opening 2421 facing away from the sliding cavity 242 extends toward the inside of the first opening 2421 to form a second stopper portion 2422 .

In an embodiment of the present invention, the side of the first opening facing away from the sliding cavity extends toward the inside of the first opening to form a second stopper, so that the side of the second stopper facing away from the sliding cavity can be in contact with the outside of the counterweight seat. The surface is bonded to prevent the formation of an uncleanable dead angle between the second stopper portion and the counterweight seat, and also prevents the user from catching the user's finger when pressing the pressing end.

Further, the inner wall of the sliding cavity 242 is bent toward the inside of the sliding cavity 242 to form a third stop portion 2423 .

In the embodiment of the present invention, the inner wall of the sliding chamber is bent toward the inside of the sliding chamber to form the third stopper instead of directly setting the third stopper on the inner wall of the sliding chamber, which can reduce the weight of the counterweight seat and reduce the production cost.

Further, the side of the pressing column 410 is provided with a fourth annular protrusion 414, the second annular mating surface 4141 is the side of the fourth annular protrusion 414, the pressing column 410 is sleeved with the first spring 412, the first spring 412 is located on the side of the fourth annular protrusion 414 facing away from the first opening 2421, the inner wall of the sliding cavity 242 is bent toward the inside of the sliding cavity 242 to form a fourth stopper 2424, and the first spring 412 is located between the fourth stopper 2424 and between the fourth annular protrusions 414 .

In the embodiment of the present invention, the second annular mating surface can be formed by providing the fourth annular protrusion, and the fourth annular protrusion can support the first spring sleeved on the push post. The first spring is sleeved on the push post, and the push post can support the first spring, restrict the deformation direction of the first spring, and improve the reliability of the first spring. The inner wall of the sliding cavity is bent toward the inside of the sliding cavity to form the fourth stopper instead of directly setting the fourth stopper on the inner wall of the sliding cavity, which can reduce the weight of the counterweight seat and reduce the production cost. The fourth stopper is located on the side of the fourth annular protrusion facing away from the first opening, the first spring is located between the fourth stopper and the fourth annular protrusion, and the fourth stopper can support the first spring . The fourth stop part supports one end of the first spring, and the fourth annular protrusion supports the other end of the first spring, thereby ensuring the stability of the deformation of the first spring.

Further, a frustum transition surface 415 is provided between the first annular fitting surface 4131 and the second annular fitting surface 4141 .

In an embodiment of the present invention, a transitional surface of a circular platform is provided between the first annular mating surface and the second annular mating surface. When the pressing column slides relative to the counterweight seat, the end of the claw close to the pressing column moves along the The lateral movement of the column can be, but not limited to, a ball is arranged between the claw and the pressing column, and the ball rolls against the side of the pressing column, so that the end close to the pressing column moves along the side of the pressing column. By setting the transition surface of the circular platform, when the pressing column slides relative to the counterweight seat, one end of the pressing column can move more smoothly along the side of the pressing column, avoiding motion jamming. It is possible, but not limited to, to set a circular arc surface at the junction of the first annular mating surface and the transition surface of the circular platform, so that pressing the push column makes the claw move from facing the first annular fitting surface to facing the circular platform transition surface or the claw moves from The movement from facing the transitional surface of the circular platform to the first annular mating surface is smoother; an arc surface is set at the junction of the second annular mating surface and the transitional surface of the circular platform, so that pressing the push column makes the jaw move from facing the second annular The transitional surface from the mating surface to the opposite circular platform or the movement of the claw from the transitional surface opposite to the circular platform to the second annular mating surface is smoother.

Further, one end of the weight base 240 is provided with a groove 243 , the groove 243 communicates with the first opening 2421 , and the pressing end 411 is located in the groove 243 .

In the embodiment of the present invention, the pressing end is located in the groove, and when the user presses, the user needs to put his finger into the groove to press the pressing end. When the pressing end is pushed out of the first opening by the elastic force of the first spring, the pressing end does not expose the groove. In the process of using dumbbells for muscle training, the counterweight seat can protect the pressing column and prevent other objects from coming into contact with the opening. The collision of the pressing column ensures the reliability of the claw synchronous telescopic mechanism.

Further, the groove 243 is a hemispherical groove.

In the embodiment of the present invention, when the user presses the pressing end with a finger, it will contact the inside of the groove, and the inner wall of the hemispherical groove will not have sharp parts, which improves the user's pressing feel.

Further, the plurality of claws 510 move on the same plane perpendicular to the moving direction of the pressing column 410 .

In an embodiment of the present invention, a plurality of claws move on the same plane perpendicular to the moving direction of the pressing column. When pressing the pressing column, the claw near the end of the pressing column moves along the side of the pressing column. During the movement, it is ensured that multiple claws are facing the first annular mating surface at the same time or facing the first annular mating surface at the same time, which ensures the synchronism of the telescopic movement of the multiple claws.

Further, chamfers 416 are respectively provided at both ends of the pressing column 410 .

In the embodiment of the present invention, the end of the pressing post away from the first opening is provided with a chamfer, which facilitates the insertion of the pressing post into the sliding cavity and reduces the difficulty of assembly. The end of the push column close to the first opening is set as a chamfer, which can be but not limited to a rounded corner, so as to prevent the user's finger from being clicked by the push column when the user presses the press column, thereby improving the user experience.

Referring to Figures 15-23, further, one end of the claw 510 extending from the side of the counterweight bin 241 into the counterweight bin 241 is a claw lock tongue 511, the bottom of the counterweight bin 241 is provided with a first positioning protrusion 2411, and the claw lock tongue 511 Extend into the counterweight bin 241 to lock the counterweight 600 inside the counterweight bin 241 ;

In the embodiment of the present invention, the claw is slidably connected with the counterweight seat, and the end of the claw extending into the counterweight compartment is a claw lock tongue. When the counterweight is inserted into the counterweight compartment, the claw lock tongue extends into the counterweight compartment Inside, and the claw lock tongue extends into the snap-in groove on the side of the counterweight. There is an inlet and outlet on the top of the counterweight bin, and the counterweight can only enter and exit the counterweight bin through the inlet and outlet. The stop of the claw lock tongue can prevent the counterweight from breaking away from the counterweight compartment. The bottom of the counterweight compartment is provided with a first positioning protrusion, and the counterweight is provided with a positioning groove that matches the first positioning protrusion. After the counterweight is placed in the counterweight compartment, the first positioning protrusion is inserted into the positioning groove. The cooperation of the positioning protrusion and the positioning groove can reduce the shaking range of the counterweight in the counterweight compartment, so that the counterweight locking mechanism locks the counterweight more stably. The claw is slidingly connected to the counterweight seat, and a sliding groove for sliding the claw can be set on the counterweight seat to limit the sliding direction of the claw. When it is necessary to take out the counterweight in the counterweight compartment, the claw slides relative to the counterweight seat, the claw retracts the counterweight seat, the claw lock tongue disengages from the counterweight compartment, and the claw lock tongue disengages from the clamping groove on the side of the counterweight block , the claw lock tongue no longer stops the counterweight, and the counterweight can be smoothly taken out of the counterweight compartment. By sliding the claws relative to the counterweight seat, it is adjusted whether the locking tongue of the claws extends into the counterweight compartment to take out and insert the counterweight, thereby adjusting the weight of the bell head, which simplifies the operation.

Further, the end of the claw 510 close to the push post 410 moves along the side of the push post 410, and when the end of the claw 510 close to the push post 410 moves to face the first annular mating surface 4131, the claw lock tongue 511 disengages. The counterweight compartment 241 ; when the end of the claw 510 close to the push column 410 moves to face the second annular mating surface 4141 , the claw lock tongue 511 extends into the counterweight compartment 241 .

In the embodiment of the present invention, the pressing column is slidably connected to the counterweight base, and the sliding direction of the pressing column relative to the counterweight base may be perpendicular to the end surface of the counterweight base.

Referring to FIG. 19 , further, the counterweight base 240 is provided with a limiting block 250, the claw 510 is provided with a limiting hole 512, the limiting block 250 passes through the limiting hole 512, and a second spring 513 is arranged in the limiting hole 512. The second spring 513 is located on the side of the limit block 250 facing away from the counterweight bin 241 .

In the embodiment of the present invention, the limiting block passes through the limiting hole, and through the sliding fit between the limiting block and the limiting hole, and the cooperation of the sliding groove on the counterweight seat, the sliding direction and sliding range of the claw can be limited. role. At the same time, a second spring is arranged in the limiting hole, and the elastic force of the second spring makes the end of the claw close to the pressing post move along the side of the pressing post. The limit block can also play a role in supporting the second spring.

Further, a second positioning protrusion 514 is disposed in the limiting hole 512 , and the second positioning protrusion 514 extends into the second spring 513 .

In an embodiment of the present invention, a second positioning protrusion is provided on the side of the limiting hole away from the counterweight bin, and the second positioning protrusion extends into the second spring, and the second positioning protrusion can support the second spring function, avoid excessive deformation of the second spring, and prolong the service life of the second spring. Arc grooves 515 can be provided at the parts where the claws are in contact with the balls, and the arc grooves 515 can increase the contact area between the claws and the balls and reduce the wear of the balls.

Further, a rolling member 520 is disposed between the push column 410 and the claw 510 .

In an embodiment of the present invention, when the push post slides relative to the counterweight seat, the rolling member will roll between the push post and the claw, so that the end of the claw close to the push post can move along the side of the push post. movement, reducing the friction between the claw and the push column. It is possible but not limited to that the rolling elements are balls.

Referring to FIGS. 21 and 22 , further, the counterweight 600 is at least partly placed in the counterweight bin 241 , the side of the counterweight 600 is provided with a locking groove 610 , and the bottom of the counterweight 600 is provided with a positioning groove 620 .

In an embodiment of the present invention, the bottom of the counterweight compartment is provided with a first positioning protrusion, and the bottom of the counterweight is provided with a positioning groove that matches the first positioning protrusion. After the counterweight is placed in the counterweight compartment, the first positioning The protrusion is inserted into the positioning groove, and through the cooperation of the first positioning protrusion and the positioning groove, the shaking range of the counterweight in the counterweight compartment can be reduced, so that the counterweight locking mechanism locks the counterweight more stably.

The claw is slidingly connected to the counterweight seat, and a sliding groove for sliding the claw can be set on the counterweight seat to limit the sliding direction of the claw. When it is necessary to take out the counterweight in the counterweight compartment, the claw slides relative to the counterweight seat, the claw retracts the counterweight seat, the claw lock tongue disengages from the counterweight compartment, and the claw lock tongue disengages from the clamping groove on the side of the counterweight block , the claw lock tongue no longer stops the counterweight, and the counterweight can be smoothly taken out of the counterweight compartment. By sliding the claws relative to the counterweight seat, it is adjusted whether the locking tongue of the claws extends into the counterweight compartment to take out and insert the counterweight, thereby adjusting the weight of the bell head, which simplifies the operation.

The claws are slidingly connected with the counterweight seat, and the end of the claws extending into the counterweight compartment is the claw lock tongue. Insert it into the clamping slot on the side of the counterweight. There is an inlet and outlet on the top of the counterweight bin, and the counterweight can only enter and exit the counterweight bin through the inlet and outlet. The stop of the claw lock tongue can prevent the counterweight from breaking away from the counterweight compartment.

Further, the clamping groove 610 is configured as an annular groove, and the annular groove surrounds the counterweight 600 along the circumference of the counterweight 600 .

In the embodiment of the present invention, after the counterweight is placed into the counterweight compartment and the first positioning protrusion is inserted into the positioning groove, no matter where the counterweight is rotated, the claw and the locking tongue are facing the engaging groove, and the latch After the claw lock tongue extends into the counterweight compartment, it can extend into the clamping groove, which is convenient for the user to lock the counterweight.

Further, the counterweight 600 is configured as a cylinder, the positioning groove 620 is configured as a cylinder, and the positioning groove 620 is coaxial with the counterweight 600 . After the counterweight is put into the counterweight bin, it is convenient for the first positioning protrusion to extend into the positioning groove, which reduces the difficulty of operation.

Further, the bottom of the counterweight 600 is provided with rounded corners 630 .

In the embodiment of the present invention, the bottom of the counterweight 600 is provided with rounded corners, that is, the diameter of the bottom of the counterweight 600 becomes smaller, which is convenient for placing the counterweight into the counterweight compartment.

The claws are slidingly connected with the counterweight seat, and the end of the claws extending into the counterweight compartment is the claw lock tongue. Insert it into the clamping slot on the side of the counterweight. There is an inlet and outlet on the top of the counterweight bin, and the counterweight can only enter and exit the counterweight bin through the inlet and outlet. The stop of the claw lock tongue can prevent the counterweight from breaking away from the counterweight compartment. The bottom of the counterweight compartment is provided with a first positioning protrusion, and the counterweight is provided with a positioning groove that matches the first positioning protrusion. After the counterweight is placed in the counterweight compartment, the first positioning protrusion is inserted into the positioning groove. The cooperation of the positioning protrusion and the positioning groove can reduce the shaking range of the counterweight in the counterweight compartment, so that the counterweight locking mechanism locks the counterweight more stably. The claw is slidingly connected to the counterweight seat, and a sliding groove for sliding the claw can be set on the counterweight seat to limit the sliding direction of the claw. When it is necessary to take out the counterweight in the counterweight compartment, the claw slides relative to the counterweight seat, the claw retracts the counterweight seat, the claw lock tongue disengages from the counterweight compartment, and the claw lock tongue disengages from the clamping groove on the side of the counterweight block , the claw lock tongue no longer stops the counterweight, and the counterweight can be smoothly taken out of the counterweight compartment. By sliding the claws relative to the counterweight seat, it is adjusted whether the locking tongue of the claws extends into the counterweight compartment to take out and insert the counterweight, thereby adjusting the weight of the bell head, which simplifies the operation.

24-30, further, the counterweight base 240 includes a base 260, a base shield 280 and a top cover 270, the top cover 270 and the base 260 are detachably fixedly connected, the base 260 is provided with a first sub-sliding cavity 261, and the top cover 270 is fixedly connected to the base 260. The cover 270 is provided with a second sub-sliding chamber 271 at the position facing the first sub-sliding chamber 261, the base 260 is provided with a plurality of counterweight compartments 241 arranged circumferentially along its axis, and the top cover 270 is provided at a position facing the counterweight compartment 241. There is a third through hole 276 for the counterweight to pass through, and the top cover 270 and the base 260 are covered so that the first sub-sliding cavity 261 and the second sub-sliding cavity 271 constitute a sliding cavity for accommodating the sliding of the pressing column The side of the base 260 facing the top cover 270 and/or the side of the top cover 270 facing the base 260 is provided with a sliding groove 272 for the claws to slide. It communicates with the sliding cavity, and the limiting block 250 is arranged in the sliding groove 272 .

In an embodiment of the present invention, a first sub-sliding chamber is provided on a side of the base facing the top cover, and may be, but not limited to, the first sub-sliding chamber is coaxial with the base. The side of the top cover facing the base is provided with a second sub-sliding cavity, which may be but not limited to, the second sub-sliding cavity is coaxial with the top cover. The first sub-sliding cavity faces the second sub-sliding cavity, and after the top cover and the base are closed, it is ensured that the first sub-sliding cavity and the second sub-sliding cavity can form a sliding cavity. The pressing column slides in the sliding cavity, and the sliding cavity plays a role of limiting the direction and range of sliding of the pressing column. When assembling the counterweight base, when it is necessary to put the pressing column into the sliding cavity, separate the top cover from the base to expose the first sub-sliding cavity, put the pressing column into the first sub-sliding cavity, and then place the top cover Closed with the base, the pressing column enters the second sub-sliding cavity, which reduces the difficulty of assembling the pressing column into the sliding cavity. When the pressing column needs to be taken out from the sliding cavity, the top cover can be separated from the base, so that the pressing column can be taken out easily, and the pressing column can be repaired and maintained.

The side of the base facing the top cover and/or the side of the top cover facing the base are provided with sliding grooves for the claws to slide. Specifically, it may be that the side of the base facing the top cover is provided with a sliding groove; it may also be that the side of the top cover facing the base is provided with a sliding groove; Sliding grooves are respectively arranged on one side of the top cover and the base. After the top cover and the base are closed, the claws slide in the sliding grooves, and the sliding grooves can limit the sliding direction of the claws. The sliding groove can be exposed by separating the top cover and the base, so that the claw can be easily inserted into the sliding groove, and the installation difficulty of the claw is reduced. When the claw needs to be taken out from the slide groove, the top cover can be separated from the base, so that the claw can be easily taken out, and the claw can be easily repaired and maintained.

One end of the sliding groove communicates with the counterweight bin, so that the claws can extend into the counterweight bin to block the counterweight in the counterweight bin. The movement of the claw along the side of the push column is realized by setting a rolling piece between the claw and the push column, and the other end of the sliding groove communicates with the sliding cavity, so that the rolling piece extends out of the slide groove and fits the side of the push column . It is possible but not limited to that the rolling elements are balls.

A limit block is arranged in the sliding groove, and a limit hole is arranged on the claw, and the limit block is passed through the limit hole to limit the sliding range of the claw. The limiting block can also support the second spring in the limiting hole.

Further, the base 260 is fixedly connected to the limit block, and the top cover 270 is provided with a slot facing the position of the limit block, and the limit block is inserted into the slot; or, the top cover 270 is fixedly connected to the limit block 250, and the base 260 is facing The position of the limit block 250 is provided with a slot 262, and the limit block 250 is inserted into the slot 262; or, the position of the top cover 270 facing the limit block and the position of the base 260 facing the limit block are respectively provided with slots, The two ends of the limiting block are respectively inserted into the two slots.

In an embodiment of the present invention, it may be that the limit block is fixedly connected to the base, and the top cover is provided with a slot at the position facing the limit block. When the top cover and the base are closed, the end of the limit block away from the base is inserted into the plug In the groove, when the limit block is stressed, the top cover and the base respectively support the two ends of the limit block, avoiding force on one end of the limit block, making the force of the limit block more balanced, and improving the reliability of the limit block. When the top cover and the base are separated, the limit block is separated from the slot, which facilitates disassembly and assembly of the counterweight seat.

It can also be, referring to Figures 27 and 28, the limit block is fixedly connected to the top cover, the base is provided with a slot facing the position of the limit block, and when the top cover and the base are closed, the end of the limit block away from the top cover is inserted into the socket. In the groove, when the limit block is stressed, the top cover and the base respectively support the two ends of the limit block, avoiding force on one end of the limit block, making the force of the limit block more balanced, and improving the reliability of the limit block. When the top cover and the base are separated, the limit block is separated from the slot, which facilitates disassembly and assembly of the counterweight seat.

It is also possible that the top cover and the base are respectively provided with slots, and one end of the limiting block is inserted into one slot, and when the top cover and the base are closed, the other end of the limiting block is inserted into another slot, When the force is applied to the position block, the top cover and the base respectively support the two ends of the position limit block, avoiding force on one end of the position limit block, so that the force of the position limit block is more balanced, and the reliability of the limit block is improved. When the top cover and the base are separated, one end of the limit block can be disengaged from a slot, which is convenient for disassembling and assembling the counterweight seat.

Further, the side of the base 260 facing the top cover 270 is provided with a first rolling groove 263 for ball rolling, the first rolling groove 263 is located between the limit block 250 and the sliding cavity, the first rolling groove 263 and the first sub-slide The cavity 261 communicates.

In the embodiment of the present invention, when assembling the counterweight base, put the pressing column into the sliding cavity, put the claws into the sliding groove, place the ball between the claws and the pushing column, and place the ball part in the first In the first rolling groove, the ball rolls along the length direction of the first rolling groove, so that the ball is kept between the claw and the pressing column, and the first rolling groove plays a role in limiting the rolling range of the ball, ensuring that the ball is on the counterweight seat. The reliability of inner scrolling.

Further, the top cover 270 is provided with a second rolling groove 273 facing the first rolling groove 263 , and the second rolling groove 273 communicates with the second sub-sliding cavity 271 .

In the embodiment of the present invention, when assembling the counterweight base, put the pressing column into the sliding cavity, put the claws into the sliding groove, place the ball between the claws and the pushing column, and place the ball part in the first In the second rolling groove, the ball rolls along the length direction of the second rolling groove, so that the ball is kept between the claw and the pressing column. The reliability of inner scrolling.

Further, the top cover 270 and the base 260 are connected by a plurality of second bolts 274, and the second bolts 274 pass through the top cover 270 and the base 260 and are screwed with first nuts 275, and the base 260 is set on the side facing away from the top cover 270 There is a nut seat, and the nut seat is provided with a first inner hexagonal hole 264 , and the first nut 275 is located in the first inner hexagonal hole 264 .

In the embodiment of the present invention, the top cover and the base are connected by a plurality of second bolts, so as to realize the detachable fixed connection between the top cover and the base. After the second bolt passes through the top cover and the base, it is screwed with the first nut. The bolt head of the second bolt is located on the side of the top cover facing away from the base, and a first counterbore can be provided on the side of the top cover facing away from the base. Avoid leakage from the bolt head of the second bolt. The side of the base facing away from the top cover is provided with a nut seat, and the nut seat is provided with a first inner hexagonal hole, the first nut is located in the first inner hexagonal hole, when the top cover and the base are fixed by the second bolt and the second bolt is turned , the first inner hexagonal hole plays the role of fixing the first nut, preventing the first nut from rotating with the second bolt, and facilitating the assembly of the top cover and the base.

Further, the counterweight bin 241 includes a bin bottom 2412, a bin side wall 2413, and a bin top, the bin side wall 2413 is configured as an annular side wall, and the side of the bin side wall 2413 away from the first sub-sliding chamber 261 is provided with a second opening 2414, The top of the storehouse is provided with an inlet and outlet 2415 for the counterweight to enter and exit the counterweight storehouse 241 .

In the embodiment of the present invention, when the counterweight and the counterweight seat are fixed, the counterweight is placed into the counterweight compartment from the inlet and outlet, and the claws extend into the counterweight compartment to block the counterweight, preventing the counterweight from The block disengages from the counterweight mount. When taking out the counterweight, the claw retracts into the sliding groove, the claw breaks away from the counterweight bin, and the counterweight can be taken out of the counterweight bin from the inlet and outlet.

A second opening is provided on the side wall of the bin far away from the first sub-sliding chamber. When the counterweight is taken out from the counterweight bin, you can use your fingers to extend into the counterweight bin from the second opening and press against the side of the counterweight, thereby It is convenient to take out the counterweight from the counterweight compartment.

Further, the orthographic projection of the bin side wall 2413 on the base 260 is a superior arc.

In the embodiment of the present invention, the orthographic projection of the side wall of the bin on the base is a superior arc, the counterweight is cylindrical, and the matching of the counterweight bin and the counterweight is also cylindrical. The orthographic projection of the side wall of the bin on the base is a superior arc, and the diameter of the counterweight is larger than the width of the second opening, which can prevent the counterweight from detaching from the counterweight compartment from the second opening.

The orthographic projection of the second opening on the base is located at the edge of the base, so that the diameter of the base can be made as small as possible, thereby reducing the volume of the counterweight seat, saving materials, and reducing production costs.

24-30, further, the base shield 280 is detachably fixedly connected to the base 260, the base 260 is located between the base shield 280 and the top cover 270, and the side of the base shield 280 facing the base 260 is provided with a first Support disc 281, the outer diameter of the first support disc 281 is less than the outer diameter of the base shield 280, the side of the base 260 facing the base guard 280 is provided with a second support disc 265, the outer diameter of the second support disc 265 is smaller than the outer diameter of the base 260 The outer diameter of the first support disc 281 is equal to the outer diameter of the second support disc 265, the first support disc 281 is facing the second support disc 265, and the first support disc 281 and the second support disc 265 are socketed together There is buffer ring 230.

In an embodiment of the present invention, the side of the base facing away from the top cover is detachably fixedly connected with a base shield. When assembling the bell, the base shield is located on the side of the counterweight seat facing the handle. handle, when using the rotating bell for muscle training, the base shield can protect the user and prevent the weight seat from contacting the user's hand when the bell head is rotating, ensuring the user's personal safety.

The base shield is provided with a first support plate, and the base is provided with a second support plate. After the base shield and the base are fixed, the first support plate and the second support plate are combined to form a fixing groove, and the fixing groove is used to fix the buffer ring to prevent The buffer ring moves relative to the counterweight seat to ensure the stability of the buffer ring. The base shield is fixed to the base, and the first support plate and the second support plate are combined to form a fixing groove, which facilitates disassembly and assembly of the buffer ring. When the user uses the rotating bell for muscle training, the bell head can rotate relative to the bell bar, and the bell head can be placed on the ground. The user holds the handle with his hand, and the bell head can roll on the ground, acting as an abdominal wheel. use. It is possible but not limited to that the buffer ring can prevent the bell head from directly contacting with the ground to cause abrasion, and the buffer ring can also increase the friction between the bell head and the ground to prevent the bell head from slipping. It is possible, but not limited to, that a plurality of anti-slip protrusions are provided at intervals on the outside of the buffer ring to further increase the friction between the buffer ring and the ground.

Further, the base shield 280 and the base 260 are connected by a plurality of third bolts 283, and the third bolts 283 pass through the base shield 280 and the base 260 and are screwed with second nuts 284, and the bottom of the counterweight bin 241 is provided with a first positioning Protrusion 2411, the first positioning protrusion 2411 is provided with a second inner hexagonal hole 2416, the second inner hexagonal hole 2416 runs through the end of the first positioning protrusion 2411 facing the top cover 270, the second nut 284 is located in the second inner hexagonal hole Within 2416.

In the embodiment of the present invention, the base shield and the base are connected by a plurality of third bolts, so as to realize the detachable fixed connection between the base shield and the base. The third bolt passes through the base shield and the base and is screwed with a second nut. The bolt head of the third bolt is located on the side of the base shield facing away from the base, and the second sinker can be set on the side of the base shield facing away from the base. Head holes to avoid leakage from the bolt head of the third bolt.

The bottom of the counterweight compartment is provided with a first positioning protrusion, and the bottom of the counterweight is provided with a positioning groove. When the counterweight is placed in the counterweight compartment, the first positioning protrusion is inserted into the positioning groove, and the first positioning protrusion and the positioning The cooperation of the grooves and the clamping of the counterweight by the claws can prevent the counterweight from detaching from the counterweight compartment and ensure the safety of the rotating bell.

The second inner hexagonal hole is arranged in the first positioning protrusion, and the second nut is located in the second inner hexagonal hole. When the base guard and the base are fixed by the third bolt and the third bolt is rotated, the second inner hexagonal hole plays a role. The function of fixing the second nut prevents the second nut from rotating with the third bolt, and facilitates the assembly of the base shield and the base. The placement of the second nut in the second inner hexagonal hole can also prevent the second nut from exposing the first positioning protrusion, ensuring that the first positioning protrusion can be smoothly inserted into the positioning groove.

Further, the inner side of the buffer ring 230 is provided with a fifth annular protrusion 231, and the side of the fifth annular protrusion 231 facing away from the buffer ring 230 is provided with a plurality of fixing protrusions 232 at intervals, and the fixing protrusions 232 are provided with fixing holes. 233 , the side of the base cover 280 facing the base 260 or the side of the base 260 facing the base cover 280 is provided with a fixing post 282 , and the fixing post 282 passes through the fixing hole 233 .

In an embodiment of the present invention, when the base shield is fixed to the base and the buffer ring is wrapped around the first support plate and the second support plate, the fifth annular protrusion is located between the first support plate and the second support plate, and the second The first support plate and the second support plate can clamp the fifth annular protrusion to prevent the buffer ring from rotating relative to the counterweight seat. The base cover or the base is provided with a fixing column, and the fixing protrusion is provided with a fixing hole. When the base cover and the base are fixed, the fixing column passes through the fixing hole, which further improves the reliability of the connection between the buffer ring and the counterweight seat, and avoids The buffer ring rotates relative to the weight base.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solution formed by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (10)

1. a bell that can adjust the weight of the bell head, is characterized in that, comprises the bell head of bell bar mechanism and adjustable weight, the two ends of described bell bar mechanism are respectively rotated and connected with described bell head, and described bell bar The two ends of the mechanism are respectively provided with push-lock slide keys, and the push-lock slide keys are slidably connected with the bell bar mechanism, and the side of any one of the bell heads facing the other bell head is provided with a deadbolt hole. The push lock slide key includes the dead bolt; The push lock sliding key slides relative to the bell bar mechanism, so that the dead bolt enters or leaves the dead bolt hole; the deadbolt enters the deadbolt hole to prevent the bell head from rotating relative to the bell bar mechanism, The bell head includes a counterweight seat and a counterweight block, the counterweight seat is provided with a plurality of counterweight bins arranged circumferentially along its axis, the counterweight bins are used to accommodate the counterweight blocks, and the counterweight bins are arranged The heavy warehouse is provided with an inlet and outlet for the counterweight to enter and exit. The inlet and outlet are located at one end of the counterweight seat. The counterweight seat is provided with a jaw synchronous telescopic mechanism. The jaw synchronous telescopic mechanism includes multiple Synchronous sliding and telescopic claws, the counterweight is locked in the counterweight bin by at least one of the claws. 2. The rotary bell with adjustable bell head weight according to claim 1, characterized in that, the bell bar mechanism comprises a main shaft and a handle, the main shaft passes through the handle and is connected in rotation with the handle, the The bell head is detachably fixedly connected to the end of the main shaft. 3. The rotary bell with adjustable bell head weight according to claim 2, characterized in that, the main shaft is set as a stepped shaft, and the main shaft is provided with a first annular protrusion and is located on the first annular protrusion. The shaft heads on both sides are raised, the shaft shoulder is between the first annular protrusion and the shaft head, the bearing is sleeved on the shaft head, and the shaft shoulder is used to stop the bearing. The shaft head is sleeved with a retaining ring, one end of the retaining ring is against the inner ring of the bearing, and the other end of the retaining ring is against the bell head. 4. The rotary bell with adjustable bell head weight according to claim 3, characterized in that, the push-lock slide key is located between the retaining ring and the handle, and the push-lock slide key comprises a sliding seat, The sliding seat is provided with at least one push lock mechanism, the push lock mechanism includes the lock tongue and the first stopper, the lock tongue is located at one end of the slide seat facing the bell head, the lock The tongue protrudes from the end of the sliding seat, the first stop part is located on the side of the sliding seat facing the handle, and the first stop part protrudes from the side of the sliding seat, so The first stop part is connected to the sliding seat through an elastic connection part, and the handle is provided with a first through hole through which the first stop part protrudes. 5. The rotary bell with adjustable bell head weight according to claim 3, characterized in that, the bell head is detachably fixedly connected to the positioning plate, the positioning plate is provided with a second through hole, and the shaft head Part is located in the second through hole, and also includes a first bolt, the first bolt is screwed to the end of the shaft head, the first bolt is sleeved with a blocking piece, and the diameter of the blocking piece is larger than the The diameter of the second through hole, the blocking piece is located on the side of the positioning plate facing away from the retaining ring. 6. The rotary bell with adjustable bell head weight according to claim 1, characterized in that, the claw synchronous telescopic mechanism includes a push column slidingly connected with the counterweight base, and one end of the push column is a press end, the counterweight seat is provided with a sliding cavity for the sliding of the pressing column, and one end of the sliding cavity is provided with a first opening for the pressing end to expose the counterweight seat, and the sliding cavity is set There is a first spring, and the first spring provides elastic force for the pressing end to expose the first opening. The side of the pressing column is provided with a first annular mating surface and a second annular mating surface. The first annular The diameter of the matching surface is smaller than the diameter of the second ring-shaped matching surface, and the end of the claw close to the pressing post moves along the side of the pressing post. 7. The rotary bell with adjustable bell head weight according to claim 6, characterized in that a second stopper is provided at one end of the sliding chamber close to the first opening, and a side of the push column is provided with The third annular protrusion, the first annular mating surface is a side surface of the third annular protrusion, the second stopper stops the third annular protrusion, and the sliding cavity is far away from the third annular protrusion. One end of the first opening is provided with a third stopper, and the third stopper stops the push column, and the side of the first opening facing away from the sliding cavity faces the inside of the first opening extending to form the second stopper. 8. The rotary bell with adjustable bell head weight according to claim 6, characterized in that a fourth ring-shaped protrusion is provided on the side of the pressing column, and the second ring-shaped mating surface is the fourth ring-shaped protrusion. The side of the ring-shaped protrusion, the pressing column is sleeved with the first spring, the first spring is located on the side of the fourth ring-shaped protrusion facing away from the first opening, and the inner wall of the sliding cavity A fourth stop part is formed by bending toward the inside of the sliding cavity, and the first spring is located between the fourth stop part and the fourth annular protrusion. 9. The rotary bell with adjustable bell head weight according to claim 6, characterized in that, one end of the claw protruding into the counterweight bin from the side of the counterweight bin is a claw lock tongue, and the The bottom of the heavy bin is provided with a first positioning protrusion, the side of the counterweight is provided with a clamping groove, and the bottom of the counterweight is provided with a positioning groove, The counterweight is placed into the counterweight bin, the first positioning protrusion is inserted into the positioning groove, and the claw is moved close to the end of the pressing column until it faces the second annular mating surface , the claw lock tongue protrudes into the engaging groove to lock the counterweight. 10. The bell with adjustable head weight according to claim 6, characterized in that, the counterweight seat comprises a base, a base shield and a top cover, and the base is located between the base shield and the top. between covers, The top cover and the base are detachably fixedly connected, the base is provided with a first sub-sliding cavity, and the position of the top cover facing the first sub-sliding cavity is provided with a second sub-sliding cavity. The base is provided with a plurality of counterweight bins arranged circumferentially along its axis, and the position of the top cover facing the counterweight bins is provided with a third through hole for the counterweight to pass through. The top cover and the base are closed so that the first sub-sliding cavity and the second sub-sliding cavity constitute the sliding cavity, and the base faces one side of the top cover and/or the The side of the top cover facing the base is provided with a slide groove, The base shield is detachably fixedly connected to the base, and the side of the base shield facing the base is provided with a first support plate, and the outer diameter of the first support plate is smaller than the outer diameter of the base shield , the side of the base facing the base shield is provided with a second support plate, the outer diameter of the second support plate is smaller than the outer diameter of the base, the outer diameter of the first support plate is the same as that of the first support plate The outer diameters of the two support plates are equal, the first support plate is facing the second support plate, and a buffer ring is sleeved on the first support plate and the second support plate.

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