CN211082549U

CN211082549U - Meshing structure, rotation module applying meshing structure and operating table

Info

Publication number: CN211082549U
Application number: CN201921747709.2U
Authority: CN
Inventors: 邓子林; 扈钧; 谢超群; 严源利
Original assignee: Shenzhen Comen Medical Instruments Co Ltd
Current assignee: Shenzhen Comen Medical Instruments Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-07-24
Anticipated expiration: 2029-10-17

Abstract

The utility model provides a nibbling tight structure, applied this rotation module and operation table that nibbles tight structure provide an operation table, including rotating the module, rotate the module and include first module, second module and nibble tight structure, nibble tight structure and include: the base is provided with a first shaft seat and a second shaft seat, the elastic part is arranged between the first meshing block and the second meshing block, two ends of the elastic part are respectively connected with the first meshing block and the second meshing block, the elastic part is used for providing elastic force enabling the first meshing block and the second meshing block to be away from each other, the meshing assembly is used for driving the second meshing block to move towards the direction close to the first meshing block along the shaft body so as to enable the second meshing block to be tightly meshed with the first meshing block, when the meshing assembly is loosened, the meshing teeth of the first meshing block and the second meshing block are loosened, the meshing teeth structures can be completely separated, the meshing teeth structures cannot scrape each other to generate noise when rotating, and the base is quiet and reliable.

Description

Meshing structure, rotation module applying meshing structure and operating table

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a rotation module and operation table that nibbles tight structure, use this nibbles tight structure.

Background

The operation bed is also called as an operation table, can support a patient in the operation process, can adjust the body position according to the operation requirement, provides a convenient operation environment for a doctor, and belongs to basic equipment of an operation room. The operation table is formed by the combination of the module of a plurality of different functions usually, and these modules include support, seat, first board, put hand board, leg board and foot board etc. usually, and the seat bears in the support top for support human waist, the one end at the seat is connected to the first board, be used for supporting human head, put the both sides that the hand board is connected at the seat, be used for supporting human hand, the other end at the seat is connected to the leg board, be used for supporting human shank, the foot board sets up on the leg board, be used for bearing the foot.

The hand and the leg are the movable joints of the human body, and many operations on the hand and the leg require the hand and the leg to be adjusted to proper positions, so the hand plate and the leg plate are generally rotatably connected to the seat plate, thereby facilitating the rotation of the position to be adjusted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rotation module and operation table that nibbles tight structure, applied this nibbles tight structure is provided, and the tooth structure can separate completely, and the tooth structure can not scrape each other and send noise, quiet and reliable during the rotation.

In order to solve the above technical problem, the utility model discloses a realize like this, a kind of nibbling tight structure, include: the base is provided with 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, the meshing assembly is assembled on the second shaft seat and connected with the other end of the shaft body, the first meshing block is rotatably assembled on the shaft body and close to the first shaft seat, the second meshing block is assembled on the shaft body and close to the second shaft seat, one side of the first meshing block close to the second shaft seat and one side of the second meshing block close to the first shaft seat are provided with meshed teeth matched with each other, the elastic element is arranged between the first meshing block and the second meshing block, and two ends of the elastic element are respectively connected with the first meshing block and the second meshing block, the elastic component is used for providing elastic force for enabling the first engaging block and the second engaging block to be away from each other, and the engaging component is used for driving the second engaging block to move towards the direction close to the first engaging block along the shaft body so as to enable the second engaging block to be tightly engaged with the first engaging block.

Furthermore, the first engaging block is provided with a first shaft hole, a first step groove coaxial with the first shaft hole is formed in the position, close to the second engaging block, of the inner wall of the first shaft hole, the shaft body penetrates through the first shaft hole, and one end, close to the first engaging block, of the elastic element is arranged in the first step groove.

Furthermore, the structure of clenching still includes the protective sheath, the protective sheath includes the sleeve pipe and follows the butt edge that the radial outside extension of sleeve pipe one end edge formed, the protective sheath set up in being close to of first meshing piece the first axle seat side, the sleeve pipe cover of protective sheath is located the axis body and is stretched into in the first axle hole, the butt edge inlay in first meshing piece with between the first axle seat.

Furthermore, a connecting groove is formed in the side, close to the first meshing block, of the second meshing block, the connecting groove corresponds to the first stepped groove, and the other end of the elastic piece is arranged in the connecting groove.

Furthermore, the engaging assembly comprises an abutting block, a wrench and a transmission member, the abutting block is sleeved outside the shaft body and fixed on the side, close to the second engaging block, of the second shaft seat, the second engaging block is in sliding connection with the abutting block in the extending direction of the shaft body, the wrench is hinged at one end, close to the second shaft seat, of the shaft body, the transmission member comprises a base body and a transmission foot extending from the base body, the base body is sleeved outside the shaft body and located between the wrench and the abutting block, the transmission foot penetrates through the abutting block, the end of the transmission foot abuts against the side, close to the second shaft seat, of the second engaging block, the peripheral surface of the hinged end of the wrench is provided with a first limiting surface and a second limiting surface which are adjacent, and the first limiting surface and the second limiting surface are connected through a smooth transition surface, the distance from the first limiting surface to the rotating shaft of the wrench is greater than the distance from the second limiting surface to the rotating shaft.

Furthermore, the meshing structure further comprises a first gasket, a second gasket and a locking screw, a first assembly hole is formed in the first shaft seat, the shaft body penetrates through the first assembly hole, the first gasket is sleeved outside the shaft body and located between the first meshing block and the first shaft seat, the second gasket is fixed at one end, close to the first shaft seat, of the shaft body through the locking screw, and the second gasket is located on one side, far away from the first meshing block, of the first shaft seat.

Furthermore, a second shaft hole is formed in the second meshing block, the shaft body penetrates through the second shaft hole, a second stepped groove is formed in the position, close to the second shaft seat, of the inner wall of the second shaft hole, the transmission foot abuts against the bottom of the second stepped groove, the abutting block is partially embedded into the second stepped groove, a limiting edge is arranged on the peripheral side of the abutting block, the extending direction of the limiting edge is parallel to the extending direction of the shaft body, a clamping groove corresponding to and matched with the limiting edge is formed in the peripheral wall of the second stepped groove in a concave mode, and the limiting edge is assembled in the clamping groove in a sliding mode.

Furthermore, the meshing structure further comprises a lining, the lining is fixedly assembled on the base and provided with a second positioning piece, the second positioning piece is located between the abutting block and the second shaft base, a second positioning hole is formed in the second positioning piece and provided with a second positioning edge, and the abutting block extends towards the second positioning hole to form a second positioning block matched with the second positioning hole.

Furthermore, the lining is also provided with a first positioning sheet, the first positioning sheet is positioned between the first gasket and the first shaft seat, the first positioning sheet is provided with a first positioning hole, the first positioning hole is provided with a first positioning edge, and the first gasket extends towards the first positioning hole to form a first positioning block matched with the first positioning hole.

Further, a rotating module is provided, which comprises a first module, a second module and the engaging structure as described above, wherein the first module is assembled with the first engaging block, and the second module is assembled with the base.

Further, an operating bed is provided, comprising an engagement structure as described in any of the above.

The utility model discloses well nibbling tight structure, applied this rotation module and operation table that nibbles tight structure compare with prior art, beneficial effect lies in:

when the first meshing block and the second meshing block need to be locked, the meshing assembly drives the second meshing block to slide towards the direction close to the first meshing block, so that the meshing teeth of the first meshing block and the second meshing block are meshed, at the moment, the first meshing block and the second meshing block cannot rotate relatively, when the first meshing block and the second meshing block need to rotate relatively, the meshing assembly is loosened, the second meshing block slides towards the direction far away from the first meshing block under the elastic action of the elastic piece, the meshing teeth of the first meshing block and the second meshing block are loosened, the meshing teeth structures can be completely separated, the meshing teeth structures cannot be scraped mutually to generate noise during rotation, and the device is quiet and reliable.

Drawings

Fig. 1 is a schematic view of an overall structure of an engaging structure in an embodiment of the present invention;

FIG. 2 is a schematic sectional view of the fastening structure of FIG. 1 taken along the direction A-A;

fig. 3 is a schematic perspective exploded view of an engaging structure in an embodiment of the present invention.

In the drawings, each reference numeral denotes: 1. a base; 11. a first shaft seat; 12. a second shaft base; 111. a first assembly hole; 121. a second assembly hole; 2. a shaft body; 3. a first engagement block; 31. a first shaft hole; 311. a first step groove; 4. a second engagement block; 41. a second shaft hole; 411. a second stepped groove; 4111. a clamping groove; 5. an engagement assembly; 51. a propping block; 52. connecting blocks; 53. a wrench; 511. a limiting edge; 521. a substrate; 522. a transmission foot; 531. a first limiting surface; 532. a second limiting surface; 6. a protective sleeve; 61. a sleeve; 62. abutting the flange; 7. a first gasket; 8. a second gasket; 9. an elastic member; 10. a liner; 101. a first positioning sheet; 102. a second locating plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

in this embodiment, an operation table is provided, which includes a rotation module, the rotation module includes a first module, a second module, and an engagement structure, wherein, as shown in fig. 1 to 3, the engagement structure includes: the base 1, the shaft body 2, the first meshing block 3, the second meshing block 4, the elastic member 9 and the meshing assembly 5, the base 1 is provided with 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, one end of the shaft body 2 is fixedly connected with the first shaft seat 11, the meshing assembly 5 is assembled on the second shaft seat 12 and connected with the other end of the shaft body 2, the first meshing block 3 is rotatably assembled on the shaft body 2 and close to the first shaft seat 11, the second meshing block 4 is assembled on the shaft body 2 and close to the second shaft seat 12, one side of the first meshing block 3 close to the second shaft seat 12 and one side of the second meshing block 4 close to the first shaft seat 11 are provided with meshing teeth matched with each other, the elastic member 9 is arranged between the first meshing block 3 and the second meshing block 4, two ends of the elastic member 9 are respectively connected with the first meshing block 3 and the second meshing block 4, the elastic member 9 is used for providing elastic force for enabling the first meshing block 3 and, the engaging assembly 5 is used for driving the second engaging block 4 to move along the shaft body 2 towards the direction close to the first engaging block 3 so as to enable the second engaging block 4 to be tightly engaged with the first engaging block 3, the first module is assembled with the first engaging block 3, the second module is assembled with the base 1, the first module can be a seat board, and the second module can be a hand board or a leg board.

When the first meshing block 3 and the second meshing block 4 need to be locked, the meshing assembly 5 drives the second meshing block 4 to slide towards the direction close to the first meshing block 3, so that the meshing teeth of the first meshing block 3 and the second meshing block 4 are meshed, at the moment, the first meshing block 3 and the second meshing block 4 cannot relatively rotate, when the first meshing block 3 and the second meshing block 4 need to relatively rotate, the meshing assembly 5 is released, the second meshing block 4 slides towards the direction far away from the first meshing block 3 under the elastic force of the elastic member 9, so that the meshing teeth of the first meshing block 3 and the second meshing block 4 are released, the meshing teeth structures can be completely separated, and the meshing teeth structures cannot mutually scrape to generate noise during rotation, so that the device is quiet and reliable.

The first engaging block 3 is provided with a first shaft hole 31, a first step groove 311 which is coaxial with the first shaft hole 31 is formed in the position, close to the second engaging block 4, of the inner wall of the first shaft hole 31, the shaft body 2 penetrates through the first shaft hole 31, and one end, close to the first engaging block 3, of the elastic element 9 is arranged in the first step groove 311; the side of the second meshing block 4 close to the first meshing block 3 is provided with a connecting groove corresponding to the first step groove 311, and the other end of the elastic member 9 is arranged in the connecting groove. In this embodiment, the elastic member 9 is a spring, the elastic member 9 is sleeved on the shaft body 2, and two ends of the elastic member 9 are respectively disposed in the first step groove 311 and the connecting groove, so that the position of the elastic member 9 is relatively stable, and the elastic member is more reliable when exerting an elastic force.

The meshing structure further comprises a protective sleeve 6, the protective sleeve 6 comprises a sleeve 61 and a butting edge 62 formed by extending outwards from one end edge of the sleeve 61 in a radial direction, the protective sleeve 6 is arranged on the side, close to the first shaft seat 11, of the first meshing block 3, the sleeve 61 of the protective sleeve 6 is sleeved on the shaft body 2 and extends into the first shaft hole 31, and the butting edge 62 is embedded between the first meshing block 3 and the first shaft seat 11. In this embodiment, the outer wall of protective sheath 6 pastes the inner wall of tight first axle hole 31, and butt reason 62 passes through screw and the fixed mounting of first meshing piece 3, and the setting of protective sheath 6 can avoid the inner wall of first axle hole 31 directly to rub with the axis body 2, can reduce the wearing and tearing of first meshing piece 3 to improve its life.

The meshing structure further comprises a first gasket 7, a second gasket 8 and a locking screw, a first assembly hole 111 is formed in the first shaft seat 11, the shaft body 2 penetrates through the first assembly hole 111, the first gasket 7 is sleeved outside the shaft body 2 and located between the first meshing block 3 and the first shaft seat 11, the second gasket 8 is fixed at one end, close to the first shaft seat 11, of the shaft body 2 through the locking screw, and the second gasket 8 is located on one side, away from the first meshing block 3, of the first shaft seat 11. Under the action of the first gasket 7, the second gasket 8 and the locking screw, one end of the shaft body 2 can be firmly fixed on the first shaft seat 11, the first gasket 7 and the second gasket 8 can increase the stress area, and the first gasket 7 and the second gasket 8 are more reliable, the first gasket 7 can isolate the protective sleeve 6 from the shaft seat to avoid direct friction between the protective sleeve 6 and the shaft seat, in the embodiment, the meshing structure further comprises a lining 10, the lining 10 is fixedly assembled on the base 1, the lining 10 is provided with a first positioning sheet 101, the first positioning sheet 101 is positioned between the first gasket 7 and the first shaft seat 11, the first positioning sheet 101 is provided with a first positioning hole, the first positioning hole is provided with a first positioning edge, the first gasket 7 extends towards the first positioning hole to form a first positioning block matched with the first positioning hole, and as the first positioning block is embedded in the first positioning hole, the first gasket 7 cannot rotate relative to the shaft body 2, and is more stable.

The engagement assembly 5 comprises an abutment block 51, the transmission piece comprises a base body 521 and a transmission foot 522 extending out of the base body 521, the base body 521 is sleeved outside the shaft body 2 and is located between the wrench 53 and the abutting block 51, the transmission foot 522 penetrates through the abutting block 51 and the end portion of the transmission foot 522 abuts against the side, close to the second shaft seat 12, of the second engaging block 4, the circumferential surface of the hinged end of the wrench 53 is provided with a first limiting surface 531 and a second limiting surface 532 which are adjacent, the first limiting surface 531 and the second limiting surface 532 are connected through a smooth transition surface, and the distance from the first limiting surface 531 to the rotating shaft of the wrench 53 is greater than the distance from the second limiting surface 532 to the rotating shaft. Can make spanner 53 rotate around the tip of axle body 2 through breaking spanner 53 off with the fingers and thumb to make first spacing face 531 or second spacing face 532 support on the driving medium, when first spacing face 531 supports on the driving medium, the driving medium moves towards the direction that is close to first meshing block 3 along the axle body 2, thereby drive the mesh intermeshing of second meshing block 4 and first meshing block 3, when spacing face 532 of second supports on the driving medium, under the effect of elastic component 9, the mesh of first meshing block 3 and second meshing block 4 keeps away from each other.

The second meshing block 4 is provided with a second shaft hole 41, the shaft body 2 penetrates through the second shaft hole 41, a second stepped groove 411 is formed in the position, close to the second shaft seat 12, of the inner wall of the second shaft hole 41, the transmission pin 522 abuts against the bottom of the second stepped groove 411, the abutting block 51 is partially embedded into the second stepped groove 411, a limiting edge 511, the extending direction of which is parallel to the extending direction of the shaft body 2, is arranged on the peripheral side of the abutting block 51, a clamping groove 4111 corresponding to and matched with the limiting edge 511 is formed in a recessed mode in the peripheral wall of the second stepped groove 411, and the limiting edge 511 is assembled in the clamping groove 4111 in a sliding mode. Specifically, four limiting ribs 511 are arranged on the periphery of the abutting block 51 at equal intervals, correspondingly, the periphery of the second stepped groove 411 is recessed to form four snap grooves 4111 corresponding to one another, and the limiting ribs 511 are slidably assembled in the snap grooves 4111, so that when the second engaging block 4 slides along the shaft body 2, the limiting ribs 511 can also slide along the snap grooves 4111 relatively, and when the end of the limiting ribs 511 abuts against the bottom of the snap grooves 4111, the second engaging block 4 can be prevented from moving towards the direction close to the second shaft seat 12, so that the moving stroke of the second engaging block 4 is limited.

The lining 10 further has a second positioning plate 102, the second positioning plate 102 is located between the abutting block 51 and the second shaft base 12, the second positioning plate 102 is provided with a second positioning hole, the second positioning hole has a second positioning edge, and the abutting block 51 extends towards the second positioning hole to form a second positioning block matched with the second positioning hole. The second positioning block is embedded in the second positioning hole, so that the abutting block 51 cannot rotate relative to the shaft body 2, the limiting edge 511 is embedded in the embedding groove 4111, the second engaging block 4 cannot rotate relative to the abutting block 51, the second engaging block 4 cannot rotate relative to the shaft body 2 under the cooperation of two functions, and the first engaging block 3 can be fixed relative to the base 1 when the second engaging block 4 is engaged with the first engaging block 3.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An engagement structure, comprising: the gear-type clutch comprises a base (1), a shaft body (2), a first meshing block (3), a second meshing block (4), an elastic piece (9) and a meshing assembly (5), wherein the base (1) is provided with 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), one end of the shaft body (2) is fixedly connected with the first shaft seat (11), the meshing assembly (5) is assembled on the second shaft seat (12) and is connected with the other end of the shaft body (2), the first meshing block (3) is rotatably assembled on the shaft body (2) and is close to the first shaft seat (11), the second meshing block (4) is assembled on the second shaft seat (2) and is close to the second shaft seat (12), one side of the first meshing block (3) close to the second shaft seat (12) and one side of the second meshing block (4) close to the first shaft seat (11) are provided with meshing teeth which are matched with each other, the elastic piece (9) is arranged between the first meshing block (3) and the second meshing block (4), two ends of the elastic piece (9) are respectively connected with the first meshing block (3) and the second meshing block (4), the elastic piece (9) is used for providing elastic force for enabling the first meshing block (3) and the second meshing block (4) to be away from each other, and the meshing assembly (5) is used for driving the second meshing block (4) to move towards the direction close to the first meshing block (3) along the shaft body (2) so that the second meshing block (4) is meshed with the first meshing block (3).

2. The engagement structure according to claim 1, wherein the first engagement block (3) is provided with a first shaft hole (31), a first step groove (311) coaxial with the first shaft hole (31) is formed in the inner wall of the first shaft hole (31) near the second engagement block (4), the shaft body (2) is inserted into the first shaft hole (31), and one end of the elastic member (9) near the first engagement block (3) is arranged in the first step groove (311).

3. The structure of claim 2, further comprising a protective sleeve (6), wherein the protective sleeve (6) comprises a sleeve (61) and an abutting edge (62) formed by extending radially outwards from one end edge of the sleeve (61), the protective sleeve (6) is disposed on the first engaging block (3) side close to the first shaft seat (11), the sleeve (61) of the protective sleeve (6) is sleeved on the shaft body (2) and extends into the first shaft hole (31), and the abutting edge (62) is embedded between the first engaging block (3) and the first shaft seat (11).

4. The tightening structure according to claim 2, wherein a side of the second engaging block (4) adjacent to the first engaging block (3) is provided with a connecting groove corresponding to the first step groove (311), and the other end of the elastic member (9) is provided in the connecting groove.

5. A meshing structure according to any one of claims 2 to 4, wherein the meshing assembly (5) comprises an abutting block (51), a wrench (53) and a transmission member, the abutting block (51) is sleeved outside the shaft body (2) and fixed on the side of the second shaft seat (12) close to the second engaging block (4), the second engaging block (4) is slidably connected with the abutting block (51) in the extending direction of the shaft body (2), the wrench (53) is hinged at one end of the shaft body (2) close to the second shaft seat (12), the transmission member comprises a base body (521) and a transmission foot (522) extending from the base body (521), the base body (521) is sleeved outside the shaft body (2) and located between the wrench (53) and the abutting block (51), the transmission foot (522) passes through the abutting block (51) and the end of the transmission foot (522) abuts against the second engaging block (4) The side of the second shaft seat (12) is close to, the peripheral surface of the hinged end of the wrench (53) is provided with a first limiting surface (531) and a second limiting surface (532) which are adjacent to each other, the first limiting surface (531) is connected with the second limiting surface (532) through a smooth transition surface, and the distance from the first limiting surface (531) to the rotating shaft of the wrench (53) is greater than the distance from the second limiting surface (532) to the rotating shaft.

6. The structure of claim 5, further comprising a first gasket (7), a second gasket (8) and a locking screw, wherein the first shaft seat (11) is provided with a first assembling hole (111), the shaft body (2) is inserted into the first assembling hole (111), the first gasket (7) is sleeved outside the shaft body (2) and located between the first engaging block (3) and the first shaft seat (11), the second gasket (8) is fixed to one end of the shaft body (2) close to the first shaft seat (11) through the locking screw, and the second gasket (8) is located on one side of the first shaft seat (11) far away from the first engaging block (3).

7. The engagement structure according to claim 6, wherein the second engagement block (4) is provided with a second shaft hole (41), the shaft body (2) is inserted into the second shaft hole (41), a second stepped groove (411) is provided on an inner wall of the second shaft hole (41) near the second shaft seat (12), the transmission leg (522) abuts against a groove bottom of the second stepped groove (411), the abutting block (51) is partially embedded into the second stepped groove (411), a limiting rib (511) having an extending direction parallel to the extending direction of the shaft body (2) is provided on a peripheral side of the abutting block (51), a snap groove (4111) corresponding to and matching the limiting rib (511) is recessed on a peripheral wall of the second stepped groove (411), and the limiting rib (511) is slidably fitted in the snap groove (4111).

8. The structure of claim 7, further comprising a liner (10), wherein the liner (10) is fixedly mounted on the base (1), the liner (10) has a second positioning piece (102), the second positioning piece (102) is located between the abutting block (51) and the second shaft seat (12), the second positioning piece (102) is provided with a second positioning hole, the second positioning hole has a second positioning edge, and the abutting block (51) extends towards the second positioning hole to form a second positioning block matched with the second positioning hole.

9. The engagement structure according to claim 8, wherein the liner (10) further comprises a first positioning sheet (101), the first positioning sheet (101) is located between the first gasket (7) and the first shaft seat (11), the first positioning sheet (101) is provided with a first positioning hole, the first positioning hole is provided with a first positioning edge, and the first gasket (7) extends towards the first positioning hole to form a first positioning block matched with the first positioning hole.

10. A rotating module, characterized in that it comprises a first module, which is assembled with said first engagement block (3), a second module, which is assembled with said base (1), and a tightening structure according to any one of claims 1-9.

11. An operating bed, characterized in that it comprises an engagement structure according to any one of claims 1-9.