CN201439288U - Exercise bicycle hub with speed reducer - Google Patents

Abstract

The utility model provides an exercise bicycle flower hub with decelerator, the one end of this flower hub is linked one by an one-way bearing and is the follower of sprocket or belt pulley, the utility model discloses mainly set up a decelerator between follower and flower hub, this decelerator includes one and links to each other the locking ring that ties with the follower, and the unit of stopping of and unit mount in this locking ring periphery side, each unit of stopping contains one and presses to stop the saddle in flower hub periphery side and combine to lock the locking ring and press to stop the locking bolt in the saddle, utilizes each unit of stopping to set up in the design of flower hub periphery side with the multiple spot and just present radial arrangement, and the equipment is easy and can reduce decelerator effectively and install in the axial space of flower hub.

Description

Exercise bike hub with reduction gear

technical field

The utility model relates to a flower hub of an exercise bike, in particular to a flower hub of an exercise bike with a deceleration device.

Background technique

In order for exercise bikes to decelerate smoothly without stepping on the gravity flywheel or reverse spin control, related companies have proposed exercise bike flowers such as the new patent case No. 552966 in Taiwan (TW) Announcement No. Hub structure design, the technical means used in this case are mainly that when the transmission structure stops or operates in reverse, the one-way bearing installed on the driven wheel will form idling, and the one-way rotor and the hub are connected by a reduction device , using the brake pads provided by the one-way rotor to rub and crimp the non-slip pads and brake pads provided by the hub, so as to stop the rotation of the hub and the flywheel.

However, the reduction gear with the hub structure has many components, including several sets of brake pads, anti-slip pads, disk springs, torsion plates, etc. The overall production cost is high, and the manufacturing and assembly It is too labor-intensive and time-consuming. In addition, the deceleration devices of the hub structure are all installed in the axial position, so that the hub must increase the axial length to provide installation space, resulting in an increase in the width and occupied volume of the exercise bike.

Utility model content

In order to solve the deficiencies and limitations of the existing deceleration device of the hub of the exercise bike related to many components, high manufacturing cost and must be installed in the axial position, the main purpose of this utility model is to provide a hub of the exercise bike with a deceleration device , The utility model achieves the purpose of simplifying components, reducing cost and shortening axial space by distributing the reduction gear at multiple points in the radial position.

The technical solution adopted by the utility model to achieve the purpose is to propose a flower hub of an exercise bike with a deceleration device. The flower hub is sleeved at one end and combined with a one-way bearing. The one-way bearing is penetrated and combined with a follower. A deceleration device is arranged between the moving part and the hub, wherein: the deceleration device is provided with a locking ring and a group of braking units installed and combined on the peripheral side of the locking ring; wherein, the locking ring is sheathed and installed on the hub The outer peripheral side is combined with the follower, and each braking unit includes an anti-slip element pressed against the outer peripheral side of the hub and a stopper combined with the locking ring and pressed against the anti-slip element bolt.

The utility model can further adopt the following technical measures to realize:

In the aforementioned exercise bike hub, wherein the locking ring forms an inner ring portion on the inner surface, several grooves are equally divided on the inner peripheral surface of the inner ring portion, and corresponding grooves are formed on the outer peripheral surface of the locking ring. Each slot is provided with a screw hole communicating with the corresponding groove, the anti-slip member is located in the corresponding groove, and the stop bolt is combined with the corresponding screw hole.

In the hub of the aforementioned exercise bike, the braking unit is sequentially provided with a pressure block pushing against the anti-slip element and an elastic element pushing against the pressure block between the anti-slip element and the stop bolt.

The aforementioned exercise bike hub, wherein the locking ring is provided with a threaded surface on the inner peripheral surface of the side facing the follower, and the follower is provided with a ring wall protruding from the corresponding side, on the ring The outer peripheral surface of the wall is provided with a thread surface combined with the thread surface by threads.

In the aforementioned exercise bike hub, the locking ring is provided with a threaded surface on the inner peripheral surface of the side facing the follower, and a fixing ring is provided to pass through the follower and be threadedly coupled to the threaded surface.

The hub of the aforementioned exercise bike, wherein the driven member is a sprocket or a pulley.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, including:

1. The utility model can pre-install each brake unit on the locking ring, and then set the locking ring on the outer peripheral side of the hub before the one-way bearing is installed on the hub, the overall structure is simplified, and the assembly is simple and fast .

2. The components of the braking unit of the present utility model are simple in shape and easy to assemble, which effectively reduces the cost.

3. The braking unit of the present invention is arranged at multiple points and arranged radially on the outer peripheral side of the hub, which can effectively reduce the axial space where the deceleration device is installed on the hub and reduce the lateral width of the exercise bike.

4. The braking unit of the present utility model is pressed against the outer peripheral side of the flower hub by the anti-slip part, and the anti-slip part can be tightened or loosened by turning the stop bolt along the screw hole, effectively ensuring that the anti-slip part is always adjusted with Appropriate tightness to frictionally press against the hub.

Description of drawings

Fig. 1 is the three-dimensional sectional view of the first preferred embodiment of the utility model;

Fig. 2 is an exploded view of three-dimensional components of the first preferred embodiment of the utility model;

Fig. 3 is an end view sectional view of the first preferred embodiment of the utility model;

Fig. 4 is the schematic diagram of installation and use of the first preferred embodiment of the utility model;

Fig. 5 is a three-dimensional sectional view of a second preferred embodiment of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

(10) hub shell (11) mandrel (12) one-way bearing (13, 14) follower (131) ring wall (132) threaded surface (141) fixed ring (142) threaded surface (20) deceleration device

(30) locking ring (31) inner ring part (311) groove (32) ring wall (33) thread surface (34) screw hole

(40) Brake unit (41) Anti-slip piece (42) Press block (43) Elastic piece (44) Stop bolt (50) Flywheel (60) Chain

Detailed ways

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back.

The specific embodiment of the utility model is given in detail by the following examples and accompanying drawings.

The first preferred embodiment of the hub of an exercise bike provided by the utility model with a deceleration device is shown in Fig. 1 and Fig. 2. The hub basically includes: a hub shell 10, a hub shell 10 which is rotatably connected to the The mandrel 11 at the axial center of the hub shell 10, a one-way bearing 12 set at one end of the hub shell 10, a follower 13 set at the outer peripheral side of the one-way bearing 12, and a set at one end of the hub shell 10. The reduction gear 20 between the driven member 13 and the hub shell 10 .

As shown in Fig. 1, Fig. 2 and Fig. 3, the deceleration device 20 includes: a locking ring 30 and a group of brake units 40 installed at intervals around the locking ring 30; wherein:

The locking ring 30 is a ring structure that is sleeved on the outer peripheral side of the hub shell 10 and adjacent to the follower 13 , and an inner ring portion 31 matching the hub shell 10 is formed on the inner surface of the locking ring 30 . On the inner peripheral surface of the inner ring portion 31, several grooves 311 are equally recessed, and on the outer peripheral surface of the locking ring 30 corresponding to the positions of the grooves 311, one is provided to communicate with the corresponding groove 311. Screw holes 34 are used to install each braking unit 40; the locking ring 30 is provided with a ring wall 32 on the side facing the follower 13, and the inner ring part 31 is adjacent to the inner peripheral surface of the ring wall 32 A threaded surface 33 is provided at the position of the follower 13, and a ring wall 131 protrudes from the corresponding side of the follower 13, and a threaded surface combined with the threaded surface 33 is provided on the outer peripheral surface of the ring wall 131. 132, so that the follower 13 is combined with the locking ring 30; and

Each braking unit 40 includes a rubber cylindrical anti-slip piece 41, a pressure block 42 for pressing the anti-slip piece 41, an elastic piece 43 pressed against the pressure piece 42, and a pressure piece pressed against the elastic piece. 43 and screwed to the stop bolt 44 of the corresponding screw hole 34; the elastic member 43 therein can be implemented as a coil spring, an elastic block or an elastic strip, and the elastic member 43 as shown in the figure is an embodiment of a coil spring. In the present invention, by pressing the stopper 44 against the elastic member 43, the anti-slip member 41 can be firmly pressed against the outer peripheral side of the hub shell 10, and can have moderate elastic adjustment capability;

Each braking unit 40 of the present utility model is correspondingly installed in the position of each screw hole 34 and each groove 311 of the locking ring 30, so as to ensure that each anti-slip member 41 is pressed against the outer peripheral side of the hub shell 10 in a balanced manner, such as As shown in Figures 3 and 4, the flywheel 50 of the exercise bike is combined and fixed on the outer peripheral side of the hub shell 10, and the follower 13 is in the form of a sprocket, which can be connected to a chain 60 to drive the hub.

When the utility model is implemented and used, the general normal operation, as shown in Figure 3 and Figure 4, the driving chain 60 drives the follower 13 and the locking ring 30 to rotate, because the one-way bearing 12 will bite the hub shell 10, so it can be synchronized Drive the hub shell 10 and the flywheel 50 to rotate simultaneously, and because the rotational force far exceeds the power of each brake unit 40 anti-slip parts 41 friction hub shell 10, it can smoothly drive the flywheel 50 to rotate beyond the friction force; 60 When operating in the reverse direction, due to the effect of the one-way bearing 12, the follower 13 will not drive the hub shell 10 and the flywheel 50 through the one-way bearing 12. Since the follower 13 is connected with the locking ring 30 of the reduction gear 20, at this time The follower 13 will be subjected to friction between the non-slip parts 41 of each braking unit 40 and the hub shell 10 not being driven to generate resistance, so that the follower 13 can produce the effect of braking and decelerating the hub shell 10 and the flywheel 50; Moreover, when the chain 60 does not drive the driven member 13 to rotate, the flywheel 50 will continue to rotate due to inertia, and the anti-slip members 41 of the braking units 40 of the reduction gear 20 will press against the hub shell 10 to generate frictional resistance. The effect of decelerating and braking the hub shell 10 and the flywheel 50 is achieved.

As shown in Figure 5, it is the second preferred embodiment of the present utility model, the follower 14 in this embodiment is set as pulley form, and utilizes a fixed ring that matches with this ring wall 32 and has threaded surface 142 141 , combining the follower 14 and the locking ring 30 in a threaded manner. Of course, in the present invention, the follower can also be configured as a one-piece structure integrally formed with the locking ring 30 .

The deceleration device 20 of the present utility model utilizes a locking ring 30 to install a group of brake units 40 on the peripheral side, and adopts a multi-point radial arrangement to apply a frictional deceleration effect to the hub shell 10, which has a simplified structure, It has the advantages of small footprint, low cost and easy assembly. And the above description is only a preferred embodiment of the utility model, and is not to limit the utility model in any form. Anyone with ordinary knowledge in the technical field, if within the scope of the technical solution proposed by the utility model, , Equivalent embodiments made with partial changes or modifications made using the technical content disclosed in the utility model, and without departing from the technical solution content of the utility model, all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. the body-building vehicle with speed reduction gearing is spent hub, and this flower hub is at one end sheathed in conjunction with a unilateral bearing, and this unilateral bearing wears in conjunction with a driven member, is provided with a speed reduction gearing between this driven member and this flower hub, it is characterized in that:

This speed reduction gearing is provided with a locking ring and array is installed the stop element of stopping that is incorporated into this locking surrounding place side; Wherein, this locking ring is sheathed to be installed on the outer circumferential side of this flower hub and the interlock that combines with this driven member, and the stop element of respectively stopping all includes the stop bolt that an on-slip part and that is pressed against this flower hub outer circumferential side is incorporated into this locking ring and is pressed against this on-slip part.

2. the body-building vehicle flower hub with speed reduction gearing according to claim 1, it is characterized in that: described locking ring forms an internal ring portion at inner face, inner peripheral surface five equilibrium at this internal ring portion is concaved with several groove, respectively be provided with a screw that communicates with corresponding groove in the position of corresponding each groove of the outer peripheral face of this locking ring, described on-slip part is to be positioned at corresponding groove, and described stop bolt is to be incorporated into corresponding screw.

3. the body-building vehicle flower hub with speed reduction gearing according to claim 2 is characterized in that: described on-slip part be made as cylindric.

4. the body-building vehicle flower hub with speed reduction gearing according to claim 3 is characterized in that: the described stop element of stopping is provided with the briquetting of this on-slip part of pushing and pressing and the elastic component of this briquetting of pushing and pressing in regular turn between described on-slip part and described stop bolt.

5. the body-building vehicle flower hub with speed reduction gearing according to claim 2 is characterized in that: the described stop element of stopping is provided with the briquetting of this on-slip part of pushing and pressing and the elastic component of this briquetting of pushing and pressing in regular turn between described on-slip part and described stop bolt.

6. according to claim 1 to 5 each described body-building vehicle flower hub with speed reduction gearing wherein, it is characterized in that: described locking ring is provided with a flat of thread at the inner peripheral surface towards a side of described driven member, this driven member convexes with a circle ring wall in a corresponding side, is provided with a flat of thread that combines with screw thread with this flat of thread at the outer peripheral face of this ring wall.

7. the body-building vehicle flower hub with speed reduction gearing according to claim 6, it is characterized in that: described driven member is a sprocket wheel.

8. according to claim 1 to 5 each described body-building vehicle flower hub with speed reduction gearing wherein, it is characterized in that: described locking ring is provided with a flat of thread at the inner peripheral surface towards a side of described driven member, and is provided with a set collar and wears described driven member and be incorporated into this flat of thread with screw thread.

9. the body-building vehicle flower hub with speed reduction gearing according to claim 8, it is characterized in that: described driven member is a belt pulley.

10. according to claim 1 to 5 each described body-building vehicle flower hub with speed reduction gearing wherein, it is characterized in that: the one-piece construction that described driven member and described locking ring are formed in one.

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