CN110812089A - A gripping mechanism, a rotating module applying the gripping mechanism, and an operating bed - Google Patents

Abstract

The invention provides an engaging mechanism, a rotating module applying the engaging mechanism, and an operating bed, and provides an operating bed. The operating bed includes a rotating module, and the rotating module includes a first module, a second module and a An engaging mechanism, wherein the engaging mechanism includes: a base, a shaft body, an engaging assembly and a self-locking wrench; the base has a first shaft seat and a second shaft seat, and the engaging assembly includes a first engaging block, a second engaging block and The first elastic member; the self-locking wrench includes a wrench body, a second elastic member and a button, the wrench body includes a hinge portion and a handle connected to the hinge portion, and the peripheral surface of the hinge portion has adjacent first limit surfaces and second limit surfaces. On the plane, the side of the button near the end of the shaft body protrudes to form a top. Press and hold the button and adjust the self-locking wrench to make the top move to the end of the shaft body, which can keep the engaging mechanism stable when it is collided; The mechanism remains silent during the adjustment process.

Description

A gripping mechanism, a rotating module applying the gripping mechanism, and an operating bed

technical field

The invention belongs to the technical field of medical devices, and in particular relates to an engaging mechanism, a rotating module applying the engaging mechanism and an operating bed.

Background technique

The operating bed, also known as the operating table, can support the patient during the operation, adjust the body position according to the needs of the operation, and provide a convenient operating environment for the doctor. The operating bed belongs to the basic equipment of the operating room. The operating bed is usually composed of multiple modules with different functions. These modules usually include a support, a seat board, a head board, a hand rest board, a leg board, and a foot board. The seat board is carried on the top of the support to support the human body. The waist, the head board is connected to one end of the seat board to support the head of the human body, the hand board is connected to both sides of the seat board to support the human body's hands, and the leg board is connected to the other end of the seat board to support the body The leg of the human body, the foot board is arranged on the leg board and is used to carry the foot.

In some cases, the hand board, leg board, etc. need to be rotated relative to the seat board. In the related art, the hand board and the leg board are usually connected to the seat board through a tightening mechanism, and the tightening mechanism usually includes a wrench, a shaft and a Two meshing blocks, the adjacent sides of the two meshing blocks are provided with meshing teeth that cooperate with each other, but the meshing mechanism of the prior art is easy to interfere with each other and make noise during use, and the angle of the hand board, leg board, etc. is adjusted well. After locking the wrench, the wrench is easily loosened when it is collided and the two engaging blocks are loosened, which causes the hand plate or the leg plate to rotate relative to the seat plate. Therefore, the engaging mechanism in the prior art cannot well meet the requirements of the operating bed. usage requirements.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a gripping mechanism, a rotating module applying the gripping mechanism, and an operating bed, which are less likely to emit noise during rotation and are less likely to loosen due to collisions in a locked state, and are more suitable for operating beds. usage requirements.

In order to solve the above-mentioned technical problems, the present invention is realized in this way, a meshing mechanism includes: a base, a shaft body, an engaging assembly and a self-locking wrench; the base has a first shaft seat and a second shaft seat , a gap is formed between the first shaft seat and the second shaft seat, one end of the shaft body is fixedly connected to the first shaft seat, and the engaging assembly includes a first engaging block, a second engaging block and a first elastic piece, the first engaging block is rotatably assembled on the shaft body and close to the first shaft seat, the second engaging block is assembled on the shaft body and close to the second shaft seat, the The side of the first engaging block close to the second axle seat and the side of the second engaging block close to the first axle seat are provided with mutually matched meshing teeth, and the first elastic member is provided on the first engaging portion. between the block and the second engaging block and the two ends of the first elastic piece are respectively connected with the first engaging block and the second engaging block, the elastic piece is used to provide the second engaging block The elastic force of the block away from the first engagement block; the self-locking wrench includes a wrench body, a second elastic piece and a button, the wrench body includes a hinge part and a handle connected to the hinge part, and the other part of the shaft body One end is connected to the second axle seat, the hinge part is hinged to the other end of the axle body, the peripheral surface of the hinge part has an adjacent first limit surface and a second limit surface, and the first limit surface and the second limit surface are adjacent. The distance from a limit surface to the rotation axis of the hinge portion is greater than the distance from the second limit surface to the rotation axis, and the first limit surface and the second limit surface are used to abut against the rotating shaft. The second engaging block, the button is rotatably connected to the hinge portion, the side of the button close to the end of the shaft body protrudes to form a top, and the second elastic member is arranged on the button and the Between the hinge parts, the second elastic member provides an elastic force for making the button rotate relative to the hinge part to move the abutting part toward the direction close to the end of the shaft body.

Further, the shaft body of the shaft body protrudes radially outward to form a limiting shaft shoulder, the first engaging block is located on the side of the limiting shaft shoulder close to the first shaft seat, and the The limiting shaft shoulder is used for blocking the movement of the first engaging block toward the direction close to the second shaft seat, and the second engaging block is located on the side of the limiting shaft shoulder close to the second shaft seat.

Further, a first shaft hole is formed in the first engaging block, and a first stepped groove coaxial with the first shaft hole is formed on the inner wall of the first shaft hole near the second engaging block, and the shaft body Passing through the first shaft hole, the limiting shaft shoulder is accommodated in the first stepped groove.

Further, the engaging assembly also includes a top sheet, a top block and a transmission member, the second engaging block is provided with a second shaft hole, the shaft body is penetrated through the second shaft hole, and the second A second stepped groove is defined on the inner wall of the shaft hole near the second shaft seat, the abutting piece is sleeved outside the shaft and embedded in the second stepped groove, and the elastic member is located at the limit Between the shaft shoulder and the abutting piece, the abutting block is sleeved on the outside of the shaft and abuts on the side of the second engaging block close to the second shaft seat, and the transmission member includes a base body and a A transmission foot extending from the base body, the base body is sleeved on the shaft body and located between the abutting block and the wrench, the transmission foot passes through the abutting block and abuts against it on the side of the abutting piece away from the second engaging block.

Further, a limit edge with an extension direction parallel to the extension direction of the shaft body is arranged on the peripheral side of the abutting block, a second assembly hole is formed on the second shaft seat, and the inner wall of the second assembly hole is formed with the a limit groove corresponding to the limit edge, the abutment block is slidably assembled in the second assembly hole, and the limit edge is slidably connected in the limit groove; The peripheral wall is recessed to form a snap-fit groove corresponding to and matched with the limiting rib, and the limiting rib is partially snap-fitted into the snap-fit groove.

Further, the engaging assembly further includes abutting block and a transmission member, the abutting block is sleeved outside the shaft and is fixed on the side of the second shaft seat close to the second engaging block, the first Two engaging blocks are slidably connected with the abutting block in the extending direction of the shaft body, the wrench is hinged on one end of the shaft body close to the second shaft seat, and the transmission member includes a base body and a connection from the shaft body. a transmission foot extending from the base body, the base body is sleeved outside the shaft and located between the wrench and the abutting block, the transmission foot passes through the abutting block and the end of the transmission foot abutting against the side of the second engaging block close to the second axle seat.

Further, the second engagement block defines a second shaft hole, the shaft body penetrates the second shaft hole, and the inner wall of the second shaft hole defines a second stepped groove near the second shaft seat, The transmission foot abuts against the groove bottom of the second stepped groove, the abutting block is partially embedded in the second stepped groove, and the peripheral side of the abutting block is arranged in an extending direction parallel to the shaft body The limiting rib in the extending direction of the second stepped groove is recessed to form a corresponding and matching snap-in groove with the limit rib, and the limit rib is slidably assembled in the snap-in groove.

Further, a first shaft hole is formed in the first engaging block, and a first stepped groove coaxial with the first shaft hole is formed on the inner wall of the first shaft hole near the second engaging block, and the shaft body Passing through the first shaft hole, a connecting groove is formed on the side of the second engaging block close to the first engaging block, the connecting groove corresponds to the first stepped groove, and the elastic member is close to the One end of the first engaging block is set in the first stepped groove, and the other end of the elastic piece is set in the connecting groove.

Further, the side of the hinge portion away from the shaft body is recessed to form an assembly groove, the groove bottom of the assembly groove is provided with an opening, the opening corresponds to the end of the shaft body, and the two inner walls of the assembly groove opposite to each other. A first connection hole is opened at the corresponding position of the button, and a second connection hole is opened at the corresponding position of the button. In the first connecting hole and the second connecting hole, the second elastic member and the abutting portion are respectively located on two sides of the connecting shaft, and the abutting portion faces the opening.

Further, a first positioning hole is opened at the bottom of the assembly groove, a second positioning hole corresponding to the first positioning hole is opened at the bottom of the button toward the bottom of the assembly groove, and the second positioning hole of the second elastic member is open. Both ends are respectively embedded in the first positioning hole and the second positioning hole.

Further, the abutting top includes a sliding surface and a pressing surface, the sliding surface and the pressing surface are smoothly connected, the sliding surface is located on the side of the pressing surface close to the second elastic member, the The abutting surface is a plane, and the abutting surface is parallel to the extension line of the connecting shaft.

Further, the first limiting surface is perpendicular to the second limiting surface; the first limiting surface and the second limiting surface are connected by a smooth transition surface.

Further, two connecting seats are formed on the hinge portion extending toward the side of the shaft body, a gap is formed between the two connecting seats, and the two connecting seats are respectively provided with first shaft holes whose axes are on the same straight line. A second shaft hole whose axis is perpendicular to the extending direction of the shaft body is opened near the end of the shaft body, the engaging mechanism further includes a hinge shaft, and the end of the shaft body is accommodated in the gap, so The hinge shaft passes through the first shaft hole and the second shaft hole.

Further, one end of the hinge shaft is provided with a limit edge, the limit edge extends outward along the radial direction of the hinge shaft, and the connecting seat corresponding to the limit edge is provided with a socket groove, the The limiting edge is embedded in the embedding groove, and the peripheral side of the other end of the hinge shaft is provided with a limiting groove. The spacer is snap-fitted with the limiting groove through the snap hole.

Further, the engaging assembly further includes a protective sleeve, the protective sleeve includes a sleeve and an abutting edge formed radially outwardly extending from one end edge of the sleeve, the first engaging block is close to the first The protective sleeve is provided at the end of the shaft seat and/or the end of the first engaging block close to the second engaging block, and the sleeve of the protective sleeve is sleeved outside the shaft and connected with the first engaging block , the abutting edge of the protective cover is in close contact with the end of the first engaging block.

Further, the engagement assembly further includes a first washer, a second washer and a locking screw, the first shaft seat defines a first assembly hole, and the shaft body passes through the first assembly hole, The first washer is sleeved outside the shaft and is located between the first engagement block and the first shaft seat, and the second washer is fixed to the shaft near the shaft by the locking screw At one end of the first shaft seat, the second washer is located on the side of the first shaft seat away from the first engagement block.

Further, a rotating module is provided, comprising a first module, a second module and any one of the above-mentioned engaging mechanisms, wherein the first module is assembled with the first engaging block, and the The second module is assembled with the base.

Further, an operating bed is provided, comprising the engaging mechanism as described in any one of the above.

Compared with the prior art, the engaging mechanism, the rotating module applying the engaging mechanism and the operating bed in the present invention have the following beneficial effects:

Press and hold the button and turn the handle to rotate the hinge until the first limit surface faces the second engagement block, the first limit surface pushes against the second engagement block so that the first engagement block and the second engagement block are tightly engaged. When the button is released, the button rotates under the action of the second elastic member, and the abutting top is driven to move to the end of the shaft body. When the handle is collided, the abutting top will abut on the end face of the end of the shaft body to prevent the wrench. The main body rotates to ensure the engaged state of the engaging components. To loosen the engaging components to adjust the angle, press and hold the button. At this time, the top will be far away from the end of the shaft body, and then the handle can be rotated to rotate the hinge. Make the second limit surface face the second engaging block, the elastic force provided by the first elastic piece will make the second engaging block away from the first engaging block, so that the teeth of the first engaging block and the second engaging block are separated. There is no mutual interference between the first engaging block and the second engaging block, so the angle adjustment process is quieter. After the angle adjustment is completed, adjust the self-locking wrench so that the first limit surface abuts against the second engaging block to keep the angle stable. , the meshing mechanism of this solution can keep quiet when adjusting the angle, and after the angle adjustment is completed, it can remain stable when it is collided, thereby ensuring the reliability of the meshing mechanism and better meeting the use requirements of the operating bed.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the engaging mechanism in the first realization mode of the embodiment of the present invention;

Fig. 2 is the cutaway schematic diagram of the engaging mechanism in Fig. 1 along the A-A direction;

3 is a schematic diagram of a three-dimensional exploded structure of the engaging mechanism in the first implementation manner of the embodiment of the present invention;

4 is a schematic diagram 1 of the overall structure of the engaging mechanism in the second implementation manner of the embodiment of the present invention;

Fig. 5 is the cutaway schematic diagram of the engaging mechanism in Fig. 4 along the B-B direction;

6 is a schematic diagram of a three-dimensional exploded structure of the engaging mechanism in the second implementation manner of the embodiment of the present invention;

FIG. 7 is a schematic diagram 2 of the overall structure of the engaging mechanism in the second implementation manner of the embodiment of the present invention;

Fig. 8 is the structural schematic diagram of the tightening mechanism after the wrench body is cut along the C-C direction in Fig. 7;

9 is a schematic diagram of a three-dimensional exploded structure of a self-locking wrench and a shaft body in the second implementation manner of the embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a button in an embodiment of the present invention.

In the drawings, each reference sign indicates: 1. base; 11, first axle seat; 12, second axle seat; 111, first assembly hole; 121, second assembly hole; 1211, limit slot; 2. Shaft body; 21. Limiting shoulder; 3. Engagement assembly; 31. First engagement block; 32, Second engagement block; 33, Abutment block; 34, Transmission part; 37, protective sleeve; 38, first gasket; 39, second gasket; 301, locking screw; 302, lining; 311, first shaft hole; 321, second shaft hole; 331 341, base body; 342, transmission foot; 371, sleeve; 372, abutting edge; 3021, first positioning piece; 3022, second positioning piece; 3111, first stepped groove; 3211, second Step groove; 32111, snap groove; 4, self-locking wrench; 41, wrench body; 42, second elastic part; 43, button; 44, hinge shaft; 45, limit washer; 46, connecting shaft; 411, 412, handle; 431, abutment top; 432, second positioning hole; 441, limit edge; 442, limit groove; 451, clip hole; 4111, first limit surface; 4112, second limit surface 4113, connecting seat; 4114, assembling groove; 4311, sliding surface; 4312, abutting surface; 41141, opening; 41142, first positioning hole.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Example:

In this embodiment, the operating bed includes a rotating module, and the rotating module includes a first module, a second module, and an engaging mechanism, wherein, as shown in Figures 1-10, the engaging mechanism includes: a base 1, The shaft body 2, the engaging assembly 3 and the self-locking wrench 4; the base 1 has a first shaft seat 11 and a second shaft seat 12, a gap is formed between the first shaft seat 11 and the second shaft seat 12, and one end of the shaft body 2 Fixedly connected to the first axle seat 11 , the engaging assembly 3 includes a first engaging block 31 , a second engaging block 32 and a first elastic piece 36 , the first engaging block 31 is rotatably assembled on the axle body 2 and is close to the first axle seat 11 , The second engagement block 32 is assembled on the shaft body 2 and is close to the second shaft seat 12 . The first elastic member 36 is arranged between the first engaging block 31 and the second engaging block 32, and the two ends of the first elastic member 36 are connected to the first engaging block 31 and the second engaging block 32 respectively. In order to provide the elastic force to keep the second engaging block 32 away from the first engaging block 31; the self-locking wrench 4 includes a wrench body 41, a second elastic member 42 and a button 43, and the wrench body 41 includes a hinge portion 411 and a handle connected to the hinge portion 411 412, the other end of the shaft body 2 is connected to the second shaft seat 12, the hinge part 411 is hinged to the other end of the shaft body 2, and the peripheral surface of the hinge part 411 has an adjacent first limit surface 4111 and a second limit surface 4112, the distance from the first limit surface 4111 to the rotation axis of the hinge portion 411 is greater than the distance from the second limit surface 4112 to the rotation axis, the first limit surface 4111 and the second limit surface 4112 are used to abut the second engagement Block 32, the button 43 is rotatably connected to the hinge part 411, the side of the button 43 close to the end of the shaft body 2 protrudes to form a top 431, the second elastic member 42 is arranged between the button 43 and the hinge part 411, the second elastic member 42 provides the elastic force to make the button 43 rotate relative to the hinge part 411 to make the abutment part 431 move toward the direction close to the end of the shaft body 2; For assembly, the first module can be a seat board, and the second module can be a hand board or a leg board, etc.

Press and hold the button 43 and turn the handle 412 to rotate the hinge portion 411 until the first limiting surface 4111 faces the second engaging block 32 , the first limiting surface 4111 pushes against the second engaging block 32 so that the first engaging block 31 and the The second engaging block 32 is engaged tightly. At this time, the button 43 is released. Under the action of the second elastic member 42, the button 43 rotates, and the abutting top 431 is driven to move to the end of the shaft body 2. When the handle 412 is collided, the button The top 431 will abut on the end face of the end of the shaft body 2 to prevent the wrench body 41 from rotating, thereby ensuring the engaged state of the engaging assembly 3. To loosen the engaging assembly 3 to adjust the angle, press and hold the button 43, at this time. The abutting top 431 will be away from the end of the shaft body 2, and then the handle 412 can be moved to rotate the hinge portion 411, so that the second limiting surface 4112 faces the second engaging block 32, and the elastic force provided by the first elastic member 36 will make the first The second engagement block 32 is far away from the first engagement block 31, so that the teeth of the first engagement block 31 and the second engagement block 32 are separated, and the first engagement block 31 and the second engagement block 32 will not interfere with each other when the angle is adjusted. Therefore, The angle adjustment process is quieter. After the angle adjustment is completed, the self-locking wrench 4 is adjusted so that the first limiting surface 4111 pushes against the second engaging block 32 to keep the angle stable. Quiet, after the angle adjustment is completed, it can remain stable when it is hit, so as to ensure the reliability of the tightening mechanism and better meet the needs of the operating bed.

As shown in Figure 1-3, in the first implementation manner of this embodiment:

In order to keep the gripping mechanism quiet when the hand board or leg board rotates in the horizontal direction relative to the seat board, the shaft body of the shaft body 2 protrudes radially outward to form a limit shaft shoulder 21, and the first engaging block 31 is located at the limit The position shoulder 21 is close to the side of the first shaft seat 11 , and the limit shaft shoulder 21 is used to block the movement of the first engaging block 31 toward the direction close to the second shaft seat 12 , and the second engaging block 32 is located close to the limit shaft shoulder 21 . One side of the second axle seat 12 . During installation, the first engaging block 31 is located at a relatively high position. When the first engaging block 31 and the second engaging block 32 are required to be relatively rotatable, by loosening the self-locking wrench 4, the second engaging block 36 is driven by the first elastic member 36. The engaging block 32 slides in a direction away from the first engaging block 31, and the meshing teeth of the first engaging block 31 and the second engaging block 32 are released. , the first engaging block 31 will not slide along the shaft body 2 toward the second engaging block 32 under its own gravity and the gravity of the supported module, ensuring that the meshing teeth between the first engaging block 31 and the second engaging block 32 do not slide. There is interference so that the meshing mechanism is adjusted silently.

A first shaft hole 311 is defined in the first engagement block 31 , a first stepped groove 3111 coaxial with the first shaft hole 311 is defined on the inner wall of the first shaft hole 311 near the second engagement block 32 , and the shaft body 2 is inserted through the first shaft The hole 311, the limiting shaft shoulder 21 is accommodated in the first stepped groove 3111; the meshing assembly 3 further includes two protective sleeves 37, the protective sleeve 37 includes a sleeve 371 and an edge extending radially outward from one end of the sleeve 371. The connecting edge 372, the two protective sleeves 37 are respectively disposed at both ends of the first shaft hole 311, the sleeves 371 of the two protective sleeves 37 are sleeved on the shaft body 2 and protrude into the first shaft hole 311, close to the first shaft seat The abutting edge 372 of the protective sleeve 37 of between an engaging block 31 . The limiting shaft shoulder 21 is embedded in the first stepped groove 3111, which can make the assembly of the first engaging block 31 more stable, and the two protective sleeves 37 are located between the shaft body 2 and the first engaging block 31, thereby avoiding The inner wall is in direct contact with the shaft body 2, which can reduce wear and improve the service life.

The engaging assembly 3 also includes a top sheet 35, a top block 33 and a transmission member 34. The second engaging block 32 is provided with a second shaft hole 321, the shaft body 2 is passed through the second shaft hole 321, and the inner wall of the second shaft hole 321 is close to A second stepped groove 3211 is defined at the second shaft seat 12 , the abutting piece 35 is sleeved outside the shaft body 2 and embedded in the second stepped groove 3211 , and the elastic piece is located between the limiting shaft shoulder 21 and the abutting piece 35 . , the abutting block 33 is sleeved outside the shaft body 2 and abuts on the side of the second engaging block 32 close to the second shaft seat 12 , the transmission member 34 includes a base body 341 and a transmission foot 342 extending from the base body 341 , the base body 341 is sleeved Set on the shaft body 2 and between the abutting block 33 and the wrench, the transmission foot 342 passes through the abutting block 33 and abuts against the side of the abutting piece 35 away from the second engaging block 32 .

The second engaging block 32 defines a second shaft hole 321 , the shaft body 2 passes through the second shaft hole 321 , and a second stepped groove 3211 is defined on the inner wall of the second shaft hole 321 near the second shaft seat 12 , and the abutting piece 35 is sleeved Outside the shaft body 2 and embedded in the second stepped groove 3211, the first elastic member 36 is located between the limiting shaft shoulder 21 and the abutting piece 35, and the abutting block 33 is sleeved outside the shaft body 2 and abuts against On the side of the second engaging block 32 close to the second axle seat 12 , the transmission member 34 includes a base body 341 and a transmission foot 342 extending from the base body 341 . In between, the transmission foot 342 passes through the abutting block 33 and abuts against the side of the abutting piece 35 away from the second engaging block 32 . Specifically, the inner diameter of the second shaft hole 321 is larger than the diameter of the corresponding part of the shaft body 2, so that the first elastic member 36 is located between the inner wall of the second shaft hole 321 and the shaft body 2. The sheet 35 is fixed with the second engaging block 32 by screws, a through hole is provided in the middle of the abutting sheet 35, the through hole is matched with the shaft body 2, and the shaft body 2 passes through the through hole, thereby preventing the second engaging block 32 from being relative to the shaft body 2. Shaking in the radial direction makes the movement process of the second meshing block 32 more stable; four transmission feet 342 extend from the transmission member 34 , and the four transmission feet 342 are arranged at equal angular intervals around the center of the base body 341 and abut against the block 33 An opening for the transmission foot 342 to pass through is provided at the corresponding position of the .

A limit rib 331 extending parallel to the extension direction of the shaft body 2 is provided on the peripheral side of the abutment block 33 , a limit groove 1211 corresponding to and matched with the limit rib 331 is defined on the inner wall of the second assembly hole 121 , and the limit rib 331 slides Connected to the limiting groove 1211 ; the peripheral wall of the second stepped groove 3211 is recessed to form an inserting groove 32111 corresponding to and matching with the limiting rib 331 , and the limiting rib 331 is partially embedded in the inserting groove 32111 . Specifically, four limiting ribs 331 are arranged at equal intervals on the peripheral side of the abutting block 33 . Correspondingly, the inner wall of the second assembly hole 121 defines four limiting grooves 1211 corresponding to one another, and the peripheral wall of the second stepped groove 3211 The recesses form four corresponding insertion grooves 32111. The limiting grooves 1211 can prevent the abutment block 33 from rotating and restrict the abutment block 33 from sliding along the extending direction of the shaft body 2. Since the limiting ribs 331 are inserted into the In the groove 32111, the second engaging block 32 can be prevented from rotating around the shaft body 2, which is more stable.

As shown in Figure 4-6, in the second implementation manner of this embodiment:

A first shaft hole 311 is defined in the first engagement block 31 , a first stepped groove 3111 coaxial with the first shaft hole 311 is defined on the inner wall of the first shaft hole 311 near the second engagement block 32 , and the shaft body 2 is inserted through the first shaft The hole 311, the end of the first elastic member 36 close to the first engaging block 31 is set in the first stepped groove 3111; the second engaging block 32 is provided with a connecting groove on the side close to the first engaging block 31, and the connecting groove and the first stepped groove Corresponding to 3111, the other end of the first elastic member 36 is disposed in the connecting groove. In this embodiment, the first elastic member 36 is a spring, the first elastic member 36 is sleeved on the shaft body 2, and the two ends of the first elastic member 36 are respectively placed in the first stepped groove 3111 and the connecting groove. Therefore, The position of the first elastic member 36 is relatively stable, and is more reliable when it exerts the elastic force. The engaging mechanism of this implementation can be used to realize the vertical rotation between the modules, and the shaft body 2 is set horizontally during installation, so the first engaging block 31 and the second engaging block 32 will not be affected by gravity When moving along the shaft body 2 and adjusting the angle, the elastic force provided by the first elastic member 36 can separate the first engaging block 31 and the second engaging block 32, thereby ensuring the quietness of the adjustment process.

The engaging assembly 3 further includes a protective sleeve 37, the protective sleeve 37 includes a sleeve 371 and an abutment edge 372 formed radially outwardly extending from one end edge of the sleeve 371, and the protective sleeve 37 is disposed on the first engaging block 31 near the first shaft. On the seat 11 side, the sleeve 371 of the protective sleeve 37 is sleeved on the shaft body 2 and extends into the first shaft hole 311 , and the abutting edge 372 is embedded between the first engaging block 31 and the first shaft seat 11 . In the present embodiment, the outer wall of the protective sleeve 37 is in close contact with the inner wall of the first shaft hole 311 , the abutting edge 372 is fixedly assembled with the first engaging block 31 by screws, and the setting of the protective sleeve 37 can avoid the inner wall of the first shaft hole 311 Direct friction with the shaft body 2 can reduce the wear of the first engaging seat, thereby increasing its service life.

The engaging assembly 3 further includes a first washer 38 , a second washer 39 and a locking screw 301 . The first shaft seat 11 defines a first assembly hole 111 , and the shaft body 2 passes through the first assembly hole 111 . The sheet 38 is sleeved outside the shaft body 2 and is located between the first engaging block 31 and the first shaft seat 11, the second washer 39 is fixed to the end of the shaft body 2 close to the first shaft seat 11 by the locking screw 301, The two washers 39 are located on the side of the first axle seat 11 away from the first engaging block 31 . Under the action of the first washer 38, the second washer 39 and the locking screw 301, one end of the shaft body 2 can be firmly fixed on the first shaft seat 11, and the first washer 38 and the second washer 39 can increase the force-bearing area and be more reliable. The first gasket 38 can isolate the protective sleeve 37 and the shaft seat to avoid direct friction between the protective sleeve 37 and the shaft seat. In this embodiment, the meshing assembly 3 also includes an inner lining 302 , the inner liner 302 is fixedly assembled on the base 1, the inner liner 302 has a first positioning piece 3021, the first positioning piece 3021 is located between the first gasket 38 and the first axle seat 11, and the first positioning piece 3021 opens a first positioning piece The hole 41142, the first positioning hole 41142 has a first positioning edge, and the first gasket 38 extends toward the first positioning hole 41142 to form a first positioning block that matches the first positioning hole 41142. Since the first positioning block is embedded in the first positioning hole 41142 inside the positioning hole 41142, so the first washer 38 cannot rotate relative to the shaft body 2, and is more stable.

The engaging assembly 3 includes an abutting block 33 and a transmission member 34. The abutting block 33 is sleeved outside the shaft body 2 and is fixed on the side of the second shaft seat 12 close to the second engaging block 32. The second engaging block 32 and the abutting block 33 is slidably connected in the extending direction of the shaft body 2, the self-locking wrench 4 is hinged on the end of the shaft body 2 close to the second shaft seat 12, the transmission member 34 includes a base body 341 and a transmission foot 342 extending from the base body 341, the base body 341 is sleeved Set outside the shaft body 2 and between the self-locking wrench 4 and the abutting block 33 , the transmission foot 342 passes through the abutting block 33 and the end of the transmission foot 342 abuts against the second engaging block 32 near the second axle seat 12 sides.

The second engaging block 32 defines a second shaft hole 321 , the shaft body 2 passes through the second shaft hole 321 , and a second stepped groove 3211 is defined on the inner wall of the second shaft hole 321 near the second shaft seat 12 . At the bottom of the second stepped groove 3211, the abutting block 33 is partially embedded in the second stepped groove 3211, and a limit edge 331 extending parallel to the extending direction of the shaft body 2 is provided on the peripheral side of the abutting block 33. The second stepped The peripheral wall of the groove 3211 is recessed to form an engaging groove 32111 corresponding to and matching with the limiting rib 331 , and the limiting rib 331 is slidably assembled in the engaging groove 32111 . Specifically, four limiting ribs 331 are arranged at equal intervals on the peripheral side of the abutting block 33. Correspondingly, the peripheral wall of the second stepped groove 3211 is recessed to form four engaging grooves 32111 corresponding to one another. Since the limiting ribs 331 slide Therefore, when the second engaging block 32 slides along the shaft body 2, the limiting rib 331 also slides relatively along the engaging groove 32111, and the end of the limiting rib 331 abuts against the clamping groove 32111. When the groove bottom of the groove 32111 is inserted, the second engaging block 32 can be prevented from moving toward the direction close to the second axle seat 12 , thereby limiting the movement stroke of the second engaging block 32 .

The inner lining 302 also has a second positioning piece 3022, the second positioning piece 3022 is located between the abutting block 33 and the second axle seat 12, the second positioning piece 3022 defines a second positioning hole 432, and the second positioning hole 432 has a second positioning hole 432. At the positioning edge, the abutting block 33 extends toward the second positioning hole 432 to form a second positioning block matched with the second positioning hole 432 . The second positioning block is fitted in the second positioning hole 432, therefore, the abutting block 33 will not rotate relative to the shaft body 2, and the limiting edge 331 is fitted in the engaging groove 32111, therefore, the second engaging block 32 The second engaging block 32 cannot rotate relative to the shaft body 2 under the cooperation of the two functions. When the second engaging block 32 is engaged with the first engaging block 31, the first engaging block 31 can be relatively Base 1 is fixed.

In the first implementation manner and the second implementation manner of this embodiment, the structure of the self-locking wrench 4 is similar:

2, 5 and 7-10, the side of the hinge portion 411 away from the shaft body 2 is recessed to form an assembly groove 4114, the bottom of the assembly groove 4114 is provided with an opening 41141, the opening 41141 corresponds to the end of the shaft body 2, and the assembly groove 4114 is opposite A first connection hole is opened at the two inner walls of the 2 , and a second connection hole is opened at the corresponding position of the button 43. The self-locking wrench 4 also includes a connection shaft 46, the button 43 is embedded in the assembly groove 4114, and the connection shaft 46 is passed through the first connection. In the hole and the second connecting hole, the second elastic member 42 and the abutting portion 431 are respectively located on both sides of the connecting shaft 46 , and the abutting portion 431 faces the opening 41141 . The opening 41141 communicates with the gap formed between the two connecting seats 4113, that is, during the rotation of the shaft body 2 relative to the hinge portion 411, when the first limiting surface 4111 faces the engaging component 3, the end face of the end of the shaft body 2 will meet. As for the opening 41141, in this embodiment, the second elastic member 42 adopts a spring, and pressing the end of the button 43 corresponding to the second elastic member 42 can drive the abutting top 431 to move away from the end of the shaft body 2, that is, The abutment top 431 deviates toward the outer edge of the opening 41141, so that the abutment top 431 is deviated from the shaft body 2. When the button 43 is released, under the action of the elastic force of the second elastic member 42, the button 43 rotates and drives the abutment top 431 to approach The direction of the end of the shaft body 2 moves, that is, the abutment top 431 moves toward the center of the opening 41141 , so that the abutment top 431 is close to the shaft body 2 .

A first positioning hole 41142 is formed at the bottom of the fitting groove 4114, a second positioning hole 432 corresponding to the first positioning hole 41142 is formed on the bottom side of the button 43 toward the bottom of the fitting groove 4114, and both ends of the second elastic member 42 are respectively embedded in the first positioning hole 41142. Inside a positioning hole 41142 and a second positioning hole 432 .

The abutment portion 431 includes a sliding surface 4311 and abutting surface 4312, the sliding surface 4311 and the abutting surface 4312 are smoothly connected, the sliding surface 4311 is located on the side of the abutting surface 4312 close to the second elastic member 42, and the abutting surface 4312 is parallel to the connecting shaft 46 extension line. Specifically, the end of the shaft body 2 has a chamfered surface. When the wrench body 41 is rotated so that the first limiting surface 4111 faces the engaging assembly 3 , the end face of the end of the shaft body 2 is facing the opening 41141 . In this process, the sliding surface 4311 and the chamfered surface can reduce the friction between the shaft body 2 and the abutment top 431, and then the abutment surface 4312 will face the shaft The end face of the body 2, the abutting surface 4312 abuts on the end face of the shaft body 2 or has a small interval, if the wrench body 41 is collided at this time, the end face of the shaft body 2 will abut on the abutting surface 4312, thereby blocking the shaft The body 2 rotates relative to the hinge part 411; when the button 43 is pressed, since the abutment top 431 deviates from the end face of the shaft body 2, the shaft body 2 and the hinge part 411 can rotate, and the wrench body 41 is to be rotated to make the second limit surface When the 4112 faces the engaging component 3, release the button 43, and the button 43 will press against the peripheral wall of the shaft body 2 under the action of the elastic force.

In this embodiment, the first limiting surface 4111 is perpendicular to the second limiting surface 4112, and the first limiting surface 4111 and the second limiting surface 4112 are connected by a smooth transition surface. Specifically, in this embodiment, the first limiting surface 4111 is parallel to the extending direction of the handle 412 , and the second limiting surface 4112 is perpendicular to the extending direction of the handle 412 and is located on the side of the hinge portion 411 away from the handle 412 , that is, the handle 412 When the extension direction of the handle 412 is parallel to the extension direction of the shaft body 2, the first engagement block 31 and the second engagement block 32 are in the released state, and when the extension direction of the handle 412 is perpendicular to the extension direction of the shaft body 2, the first engagement block 31 and the second engagement block 32 are in the released state. The second engaging block 32 is in the engaged state, and the smooth transition surface can make the operation of rotating the wrench body 41 to switch the first limiting surface 4111 and the second limiting surface 4112 more labor-saving.

The hinge portion 411 extends toward the side of the shaft body 2 to form two connecting seats 4113 , a gap is formed between the two connecting seats 4113 , and the two connecting seats 4113 respectively define a first shaft hole 311 whose axis is on the same line. There is a second shaft hole 321 whose axis is perpendicular to the extension direction of the shaft body 2. The self-locking wrench 4 also includes a hinge shaft 44, the end of the shaft body 2 is accommodated in the notch, and the hinge shaft 44 passes through the first shaft hole. 311 and the second shaft hole 321.

One end of the hinge shaft 44 is provided with a limit edge 441 , the limit edge 441 extends outward along the radial direction of the hinge shaft 44 , the connecting seat 4113 corresponding to the limit edge 441 is provided with an embedded groove, and the limit edge 441 is embedded in the embedded groove Inside, the other end of the hinge shaft 44 is provided with a limit groove 442 on the peripheral side, and the self-locking wrench 4 further includes a limit washer 45 . Snap fit. Specifically, the limiting groove 442 is an annular groove coaxial with the hinge shaft 44 , the clamping hole 451 is a circular hole with a notch and matched with the limiting groove 442 , and the limiting washer 45 is located on both sides of the notch of the clamping hole 451 with an extension The limit washer 45 has elasticity. Therefore, the clamping hole 451 of the limit washer 45 can be opened through the two extension feet, so that the limit washer 45 can be clamped in the annular groove. The limit washer 45 is located in the corresponding The side of the connecting seat 4113 away from the shaft body 2 can prevent the hinge shaft 44 from loosening under the cooperation of the limit edge 441 and the limit washer 45, so that the connection between the wrench body 41 and the shaft body 2 is more stable and reliable.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (18)

1. An engaging mechanism, characterized in that it comprises: a base (1), a shaft body (2), an engaging assembly (3) and a self-locking wrench (4); The base (1) has a first shaft seat (11) and a second shaft seat (12), a gap is formed between the first shaft seat (11) and the second shaft seat (12), and the One end of the shaft body (2) is fixedly connected to the first shaft seat (11), and the engaging assembly (3) includes a first engaging block (31), a second engaging block (32) and a first elastic member (36) ), the first engagement block (31) is rotatably assembled on the shaft body (2) and is close to the first shaft seat (11), and the second engagement block (32) is assembled on the shaft body (2) ) and close to the second axle seat (12), the first engaging block (31) is close to the side of the second axle seat (12) and the second engaging block (32) is close to the first One side of the shaft seat (11) is provided with mutually matched meshing teeth, the first elastic member (36) is provided between the first engagement block (31) and the second engagement block (32), and the first Both ends of an elastic piece (36) are respectively connected with the first engaging block (31) and the second engaging block (32), and the elastic piece is used to provide a distance from the second engaging block (32) the elastic force of the first engaging block (31); The self-locking wrench (4) includes a wrench body (41), a second elastic member (42) and a button (43), and the wrench body (41) includes a hinge portion (411) and is connected to the hinge portion (411) ) handle (412), the other end of the shaft body (2) is connected to the second shaft seat (12), and the hinge part (411) is hinged to the other end of the shaft body (2), so The peripheral surface of the hinge portion (411) has an adjacent first limiting surface (4111) and a second limiting surface (4112). The distance of the rotation axis is greater than the distance from the second limit surface (4112) to the rotation axis, and the first limit surface (4111) and the second limit surface (4112) are used to abut the The second engaging block (32), the button (43) is rotatably connected to the hinge portion (411), and the side of the button (43) close to the end of the shaft body (2) protrudes to form a top ( 431), the second elastic member (42) is disposed between the button (43) and the hinge portion (411), and the second elastic member (42) provides the The hinge part (411) is rotated to make the abutment part (431) move toward the direction close to the end of the shaft body (2). 2 . The engaging mechanism according to claim 1 , wherein the shaft body of the shaft body ( 2 ) protrudes radially outward to form a limit shaft shoulder ( 21 ), and the first engaging block (31) is located on the side of the limiting shaft shoulder (21) close to the first shaft seat (11), and the limiting shaft shoulder (21) is used to block the first engaging block (31) from approaching The direction of the second shaft seat (12) moves, and the second engaging block (32) is located on the side of the limiting shaft shoulder (21) close to the second shaft seat (12). 3 . The engaging mechanism according to claim 2 , wherein the first engaging block ( 31 ) defines a first shaft hole ( 311 ), and the inner wall of the first shaft hole ( 311 ) is close to the second shaft hole ( 311 ). 4 . A first stepped groove (3111) coaxial with the first shaft hole (311) is opened at the engaging block (32), the shaft body (2) is penetrated through the first shaft hole (311), and the The limiting shaft shoulder (21) is accommodated in the first stepped groove (3111). 4. The engaging mechanism according to claim 2, characterized in that, the engaging assembly (3) further comprises a top sheet (35), a top block (33) and a transmission member (34), the second The engaging block (32) is provided with a second shaft hole (321), the shaft body (2) is penetrated through the second shaft hole (321), and the inner wall of the second shaft hole (321) is close to the second shaft A second stepped groove (3211) is provided at the seat (12), the abutting piece (35) is sleeved outside the shaft body (2) and embedded in the second stepped groove (3211), the The elastic piece is located between the limiting shaft shoulder (21) and the abutting piece (35), and the abutting block (33) is sleeved on the outside of the shaft body (2) and abuts against the first On the side of the second engaging block (32) close to the second axle seat (12), the transmission member (34) includes a base body (341) and a transmission foot (342) extending from the base body (341). A base body (341) is sleeved on the shaft body (2) and is located between the abutment block (33) and the wrench, and the transmission foot (342) passes through the abutment block (33) and abut against the side of the abutting piece (35) away from the second engaging block (32). 5 . The engaging mechanism according to claim 4 , wherein a limit edge ( 331 ) whose extension direction is parallel to the extension direction of the shaft body ( 2 ) is arranged on the peripheral side of the abutment block ( 33 ), 6 . The second shaft seat (12) is provided with a second assembly hole (121), and the inner wall of the second assembly hole (121) is provided with a limit groove (1211) corresponding to and matched with the limit edge (331), The abutting block (33) is slidably assembled in the second assembly hole (121) and the limiting edge (331) is slidably connected in the limiting groove (1211); The peripheral wall of the second stepped groove (3211) is recessed to form a corresponding and matching engaging groove (32111) with the limiting rib (331), and the limiting rib (331) is partially embedded in the engaging groove (32111). 6. The engaging mechanism according to claim 1, characterized in that, the engaging assembly (3) further comprises an abutting block (33) and a transmission member (34), and the abutting block (33) is sleeved on the The shaft body (2) is fixed on the side of the second shaft seat (12) close to the second engaging block (32), the second engaging block (32) and the abutting block (33) ) is slidably connected in the extension direction of the shaft body (2), the wrench is hinged on the end of the shaft body (2) close to the second shaft seat (12), and the transmission member (34) includes a base body (341) and a transmission foot (342) extending from the base body (341), the base body (341) is sleeved outside the shaft body (2) and located at the wrench and the abutment block (33) ), the transmission foot (342) passes through the abutting block (33) and the end of the transmission foot (342) abuts against the second engaging block (32) close to the second On the side of the shaft seat (12). 7 . The engaging mechanism according to claim 6 , wherein the second engaging block ( 32 ) defines a second shaft hole ( 321 ), and the shaft body ( 2 ) passes through the second shaft. 8 . A hole (321), a second step groove (3211) is defined on the inner wall of the second shaft hole (321) near the second shaft seat (12), and the transmission foot (342) abuts against the second step The groove bottom of the groove (3211), the abutment block (33) is partially embedded in the second stepped groove (3211), and the peripheral side of the abutment block (33) is arranged in an extending direction parallel to the shaft body (2) The limiting rib (331) in the extending direction, the peripheral wall of the second stepped groove (3211) is recessed to form an engaging groove (32111) corresponding to and matching with the limiting rib (331). The positioning edge (331) is slidably assembled in the engaging groove (32111). 8 . The engaging mechanism according to claim 6 , wherein the first engaging block ( 31 ) defines a first shaft hole ( 311 ), and the inner wall of the first shaft hole ( 311 ) is close to the second shaft hole ( 311 ). A first stepped groove (3111) coaxial with the first shaft hole (311) is opened at the engaging block (32), the shaft body (2) is penetrated through the first shaft hole (311), and the A connecting groove is formed on the side of the second engaging block (32) close to the first engaging block (31), the connecting groove corresponds to the first stepped groove (3111), and the elastic member is close to the first engaging groove. One end of the block (31) is arranged in the first stepped groove (3111), and the other end of the elastic piece is arranged in the connecting slot. 9. The engaging mechanism according to any one of claims 1-8, characterized in that, a side of the hinge portion (411) away from the shaft body (2) is recessed to form an assembling groove (4114), and the An opening (41141) is provided at the bottom of the assembly groove (4114), the opening (41141) corresponds to the end of the shaft body (2), and a first connection hole is opened at the two opposite inner walls of the assembly groove (4114). , a second connection hole is provided at the corresponding position of the button (43), the engaging mechanism further includes a connecting shaft (46), the button (43) is embedded in the assembly groove (4114), and the connection The shaft (46) passes through the first connection hole and the second connection hole, and the second elastic member (42) and the abutment portion (431) are respectively located on two sides of the connection shaft (46). side, the abutment portion (431) faces the opening (41141). 10. The engaging mechanism according to claim 9, characterized in that a first positioning hole (41142) is defined at the bottom of the fitting groove (4114), and the button (43) faces the fitting groove (4114). ) The bottom side of the groove is provided with a second positioning hole (432) corresponding to the first positioning hole (41142), and the two ends of the second elastic member (42) are embedded in the first positioning hole (41142) and the first positioning hole (41142) respectively. inside the second positioning hole (432). 11. The engaging mechanism according to claim 9, wherein the abutting portion (431) comprises a sliding surface (4311) and an abutting surface (4312), the sliding surface (4311) and the abutting surface (4312) The surfaces (4312) are smoothly connected, the sliding surface (4311) is located on the side of the abutting surface (4312) close to the second elastic member (42), the abutting surface (4312) is flat, and the abutting surface (4312) is flat. The top surface (4312) is parallel to the extension line of the connecting shaft (46). 12. The tightening mechanism according to claim 9, characterized in that, the first limiting surface (4111) is perpendicular to the second limiting surface (4112); the first limiting surface (4111) It is connected with the second limiting surface (4112) by a smooth transition surface. 13. The engaging mechanism according to claim 9, characterized in that, two connecting seats (4113) are formed on the side of the hinge portion (411) extending toward the shaft body (2), and the two connecting seats (4113) A gap is formed between ), the two connecting seats (4113) are respectively provided with a first shaft hole (311) whose axis is on the same straight line, and the axis near the end of the shaft body (2) is perpendicular to the shaft body. The second shaft hole (321) in the extension direction of (2), the engaging mechanism further includes a hinge shaft (44), the end of the shaft body (2) is accommodated in the notch, and the hinge shaft (44) is inserted through the first shaft hole (311) and the second shaft hole (321). 14. The engaging mechanism according to claim 13, wherein a limit edge (441) is provided at one end of the hinge shaft (44), and the limit edge (441) is along the hinge shaft (44) The connecting seat (4113) corresponding to the limiting edge (441) is provided with an embedding groove, the limiting edge (441) is embedded in the embedding groove, and the hinged joint A limiting groove (442) is provided on the peripheral side of the other end of the shaft (44), the engaging mechanism further includes a limiting washer (45), the limiting washer (45) has a clamping hole (451), and the limiting The position washer (45) is snap-fitted with the limiting groove (442) through the snap hole (451). 15. The engaging mechanism according to claim 9, wherein the engaging assembly (3) further comprises a protective cover (37), the protective cover (37) comprising a sleeve (371) and a connection from the cover An abutment edge (372) formed by an edge of one end of the pipe (371) extending radially outward, the end of the first engaging block (31) close to the first axle seat (11) and/or the first engaging block The protective sleeve (37) is provided at the end of the (31) near the second engaging block (32), and the sleeve (371) of the protective sleeve (37) is sleeved outside the shaft body (2) and is connected with the shaft body (2). The first engaging blocks (31) are connected, and the abutting edge (372) of the protective cover (37) is in close contact with the end of the first engaging block (31). 16. The engaging mechanism according to claim 9, wherein the engaging assembly (3) further comprises a first washer (38), a second washer (39) and a locking screw (301), wherein The first shaft seat (11) is provided with a first assembly hole (111), the shaft body (2) passes through the first assembly hole (111), and the first gasket (38) is sleeved on the first assembly hole (111). Outside the shaft body (2) and between the first engaging block (31) and the first shaft seat (11), the second washer (39) passes through the locking screw (301) is fixed to the end of the shaft body (2) close to the first shaft seat (11), and the second gasket (39) is located on the first shaft seat (11) away from the first engagement block (31) ) on the side. 17. A rotating module, characterized in that it comprises a first module, a second module and the engaging mechanism according to any one of claims 1-16, the first module and the first module An engaging block (31) is assembled, and the second module is assembled with the base (1). 18. An operating bed, characterized by comprising the engaging mechanism according to any one of claims 1-17.

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