CN217583034U - Push type facet joint structure - Google Patents

Abstract

The utility model relates to a joint structure field specifically discloses push type facet joint structure, including the movable joint and deciding the joint, movable joint and deciding joint normal running fit, movable joint and deciding realize normal running fit through rotating assembly between the joint, rotating assembly includes the button, the location axle, fixed gear and moving gear, the button exposes at the fixed gear upper surface, location axle one end and button fixed connection, other end through-drive gear and fixed gear fixed connection, the lower surface and the fixed gear upper surface tooth groove of moving gear are connected, fixed gear is spacing lift in fixed gear, move gear and movable joint fixed connection, be equipped with compression spring between button and the moving gear, compression spring overlaps to be established epaxially in the location. The utility model has the advantages of simple and reliable structure, easy operation and good use feeling.

Description

Pressing type facet joint structure

Technical Field

The utility model relates to a joint structure field, in particular to medical instrument's small-size joint.

Background

At present, a movable joint of the medical instrument needs to adjust the angle, two support arms are screwed by screws, the screws need to be loosened or screwed when the angle is adjusted, in daily use, too large friction force between the screws and the support arms can cause difficulty in loosening, and too small friction force can hardly support the gravity of the support arms; when adjusting, the angle is adjusted by using two hands; if the screw is used for a long time, the situation of tooth sliding occurs between the screw and the support arm; the existing press type self-locking joint usually uses cylindrical gears which are in internal and external structural type meshing connection, and the connection relation between the two cylindrical gears can be released only by ejecting all the cylindrical gears, and a compression spring has certain elasticity, so that the operation can be carried out only by using great force by manpower, and the existing movable joint is time-consuming and labor-consuming and low in working efficiency.

The technical problem to be solved by the application is as follows: the working efficiency of the movable joint in use is improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a push type facet joint structure for solving the technical problems.

The utility model discloses the technical scheme who adopts does: push type facet joint structure, including movable joint and fixed joint, movable joint and fixed joint normal running fit, realize normal running fit through rotating assembly between movable joint and the fixed joint, rotating assembly includes the button, the location axle, fixed gear and moving gear, the button exposes on the fixed gear upper surface, location axle one end and button fixed connection, the other end runs through moving gear and fixed gear fixed connection, the lower surface and the fixed gear upper surface tooth groove of moving gear are connected, fixed gear is spacing in fixed joint goes up and down, moving gear and movable joint fixed connection, be equipped with compression spring between button and the moving gear, compression spring overlaps and establishes epaxially in the location.

The movable joint and the fixed joint are respectively connected with an external support arm, a button is pressed, the button drives a fixed gear to descend in a limiting mode through a fixed gear, the fixed gear is connected with a tooth socket between the moving gear and the moving gear in a releasing mode, the movable joint can rotate and operate, the button is loosened after the movable joint rotates a certain angle, a spring rebounds the button to the original position, the fixed gear is connected with the moving gear in a recovery tooth socket, the fixed gear is limited in the fixed gear, the moving gear cannot rotate, and therefore the angle between the moving gear and the fixed gear is fixed. Compared with a movable joint which is fixed by using a screw, the scheme uses the push type to release the connection relation in the joint, the push button can be operated by one hand, the angle between the movable joint and the fixed joint can be changed, the operability and the practicability are greatly improved, the structure is simple and reliable, the rotation angle which can be realized is large, 180 degrees is reached, and the daily requirement is met.

In some embodiments, the fixed joint is provided with an upper inner cavity and a lower inner cavity, the upper inner cavity and the lower inner cavity are connected through the rotating assembly, the upper inner cavity is provided with a button hole matched with the button in shape, the inner wall of the lower inner cavity is provided with a positioning groove, the outer edge of the fixed gear is provided with a positioning lug matched with the positioning groove in shape, and the moving gear rotates in the lower inner cavity. This scheme all sets up most structures of runner assembly in the movable joint, has improved the pleasing to the eye degree of little joint, and the constant head tank has realized with the cooperation of location lug that the fixed gear is spacing in deciding the joint goes up and down, and simple structure is reliable.

In some embodiments, a square bump is arranged at the upper end of the moving gear, a square hole matched with the square bump in shape is arranged on the moving joint, the square hole is arranged between the upper inner cavity and the lower inner cavity and communicated with the upper inner cavity and the lower inner cavity, and the positioning shaft penetrates through the square bump and is fixedly connected with the fixed gear. The fixed connection relation between the moving gear and the moving joint is realized by the matching of the square convex block and the square hole, and the structure is simple, convenient and reliable.

In some embodiments, the rotating assembly comprises a rotating sleeve shaft and a locknut, the rotating sleeve shaft is sleeved on the outer wall of the positioning shaft, the lower end of the rotating sleeve shaft is fixedly connected with the moving gear, the upper end of the rotating sleeve shaft is in threaded connection with the locknut, the locknut is arranged below the button, a space allowing the compression spring to deform is arranged between the positioning shaft and the rotating sleeve shaft, and the top end of the compression spring is higher than the top end of the rotating sleeve shaft in a normal state. According to the scheme, the rotating sleeve shaft and the locknut are preferably arranged, the rotating sleeve shaft can better fix the connection relation between the moving gear and the moving joint, and the locknut can effectively avoid the situation that the button is clamped in the fixed joint due to excessive pressing of the button.

In some embodiments, a washer for buffering is arranged between the locknut and the fixed gear. The arrangement of the washer buffers the impact of the button on the locknut, and reduces the damage of the locknut to the internal structure of the fixed joint.

In some embodiments, the moving gear is a bevel gear. The bevel gears are arranged to fix the connection between the fixed gear and the rotary gear in the axial direction and the normal direction.

The beneficial effects of the utility model reside in that:

this push type facet joint structure is through having add rotating assembly, and the one hand can be realized pressing the button and rotate the operation of movable joint, conveniently changes movable joint and decide the angular relation between the joint in a flexible way, and structure practicality is high moreover, experience is felt well, can install on multiple small-size instrument or household electrical appliances, and simple structure is reliable, and low in production cost is fit for batch production.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a sectional view of the structure of the present invention;

fig. 4 is a bottom view of the fixed joint.

The reference numerals and names in the drawings correspond to the following: 1. a movable joint; 2. fixing a joint; 3. a rotating assembly; 11. a square hole; 21. an upper inner cavity; 22. a lower inner cavity; 221. positioning a groove; 30. a button; 31. positioning the shaft; 32. a fixed gear; 33. a moving gear; 34. rotating the sleeve shaft; 35. a locknut; 36. a compression spring; 321. positioning the bump; 331. and a square bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the push type facet joint structure comprises a movable joint 1 and a fixed joint 2, wherein the movable joint 1 is in running fit with the fixed joint 2, and the movable joint 1 is in running fit with the fixed joint 2 through a rotating assembly 3.

The joint 2 is provided with an upper inner cavity 21 and a lower inner cavity 22, and the upper inner cavity 21 and the lower inner cavity 22 are connected through the rotating component 3.

As shown in fig. 2 and 3, the rotating assembly 3 includes a push button 30, a positioning shaft 31, a fixed gear 32, a moving gear 33, a rotating sleeve shaft 34, and a locknut 35. The upper inner cavity 21 is provided with a button hole matched with the button 30 in shape, the button 30 is exposed out of the upper surface of the fixed gear 32, one end of a positioning shaft 31 is fixedly connected with the button 30, the other end of the positioning shaft penetrates through the movable gear 33 and is fixedly connected with the fixed gear 32, a compression spring 36 is sleeved on the positioning shaft 31, a rotating sleeve shaft 34 is sleeved on the outer wall of the positioning shaft 31, the upper end of the rotating sleeve shaft 34 is in threaded connection with a locknut 35, the lower end of the rotating sleeve shaft is fixedly connected with the movable gear 33, the locknut 35 is arranged in the upper inner cavity 21 and below the button 30, and a gasket for buffering is arranged between the locknut 35 and the upper inner cavity 21. A space for allowing the compression spring 36 to be deformed is provided between the positioning shaft 31 and the rotating sleeve shaft 34, and the top end of the compression spring 36 is higher than the top end of the rotating sleeve shaft 34 in a normal state.

As shown in fig. 3 and 4, the moving gear 33 and the fixed gear 32 are both disposed in the lower inner cavity 22, the lower surface of the moving gear 33 is connected with the tooth groove on the upper surface of the fixed gear 32, the moving gear 33 is a bevel gear, the upper surface of the fixed gear 32 is provided with a tooth groove matched with the moving gear 33 in shape, the inner wall of the lower inner cavity 22 is provided with three positioning grooves 221, the outer edge of the fixed gear 32 is provided with three positioning protrusions 321 matched with the positioning grooves 221 in shape, the fixed gear 32 can be limited to move up and down in the lower inner cavity 22, and the moving gear 33 rotates in the lower inner cavity 22.

The upper end of the moving gear 33 is provided with a square projection 331, the moving joint 1 is provided with a square hole 11 matched with the square projection 331 in shape, the square hole 11 is arranged between the upper inner cavity 21 and the lower inner cavity 22 and communicated with the upper inner cavity and the lower inner cavity, and the positioning shaft 31 penetrates through the square projection 331 and is fixedly connected with the fixed gear 32.

The utility model discloses a theory of operation and use flow: the button 30 is pressed to release the connection between the fixed gear 32 and the movable gear 33, the movable joint 1 is rotated to be adjusted to a required angle, the button 30 is released, the button 30 is reset due to the action of the compression spring 36, the fixed gear 32 and the movable gear 33 restore the tooth socket connection again, and therefore the angle between the movable joint 1 and the fixed joint 2 is fixed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. Push type facet joint structure, including moving joint (1) and deciding joint (2), move joint (1) and decide joint (2) normal running fit, its characterized in that, move joint (1) and decide and realize normal running fit through runner assembly (3) between joint (2), runner assembly (3) are including button (30), location axle (31), fixed gear (32) and moving gear (33), button (30) expose at fixed gear (32) upper surface, location axle (31) one end and button (30) fixed connection, the other end run through moving gear (33) and fixed gear (32) fixed connection, the lower surface and the fixed gear (32) upper surface tooth groove of moving gear (33) are connected, fixed gear (32) are spacing in deciding joint (2) and go up and down, move gear (33) and move joint (1) fixed connection, be equipped with compression spring (36) between button (30) and moving gear (33), compression spring (36) location cover is established on axle (31).

2. The push type facet joint structure according to claim 1, wherein the fixed joint (2) is provided with an upper inner cavity (21) and a lower inner cavity (22), the upper inner cavity (21) and the lower inner cavity (22) are connected through the rotating assembly (3), the upper inner cavity (21) is provided with a button hole matched with the button (30) in shape, the inner wall of the lower inner cavity (22) is provided with a positioning groove (221), the outer edge of the fixed gear (32) is provided with a positioning lug (321) matched with the positioning groove (221) in shape, and the movable gear (33) rotates in the lower inner cavity (22).

3. The pressing type small joint structure according to claim 2, wherein the moving gear (33) is provided with a square protrusion (331) at the upper end thereof, the moving joint (1) is provided with a square hole (11) matched with the square protrusion (331) in shape, the square hole (11) is arranged between the upper inner cavity (21) and the lower inner cavity (22) and communicated with the upper inner cavity and the lower inner cavity, and the positioning shaft (31) penetrates through the square protrusion (331) and is fixedly connected with the fixed gear (32).

4. The pressing type facet joint structure according to claim 1, wherein the rotating assembly (3) includes a rotating sleeve shaft (34) and a locknut (35) sleeved on an outer wall of the positioning shaft (31), a lower end of the rotating sleeve shaft (34) is fixedly connected with the moving gear (33), an upper end of the rotating sleeve shaft is in threaded connection with the locknut (35), the locknut (35) is disposed below the button (30), a space allowing the compression spring (36) to deform is disposed between the positioning shaft (31) and the rotating sleeve shaft (34), and a top end of the compression spring (36) is higher than a top end of the rotating sleeve shaft (34) in a normal state.

5. The push type facet joint structure according to claim 4, characterized in that a washer for buffering is arranged between the locknut (35) and the fixed gear (32).

6. The push type facet joint structure according to claim 1, characterized in that the moving gear (33) is a bevel gear.

Images