CN210830119U

CN210830119U - Rotation stopping base plate and locking mechanism

Info

Publication number: CN210830119U
Application number: CN201921445523.1U
Authority: CN
Inventors: 谌旦涛
Original assignee: Guangzhou Eagle Stage Equipment Co ltd
Current assignee: Guangzhou Eagle Stage Equipment Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-23
Anticipated expiration: 2029-09-02

Abstract

This patent has introduced a spline backing plate and locking mechanism, and locking mechanism is including spline backing plate and screw, and the groove that splines more than two is seted up to one side of backing plate, and the tank bottom in groove that splines is equipped with the through-hole, and the groove that splines is including the wall that splines. The number of the screws is matched with the number of the rotation stopping grooves, screw heads of the screws are arranged in the rotation stopping grooves, and thread sections of the screws extend out of the through holes and are in threaded connection with nuts. By adopting the technical scheme, the structure is simple, the locking mechanism is convenient to disassemble and assemble, the good anti-loosening effect is achieved, and the connecting strength is increased.

Description

Rotation stopping base plate and locking mechanism

Technical Field

The utility model belongs to the technical field of fastener technique and specifically relates to a spline backing plate and locking mechanism.

Background

The screw fastening mode is widely applied to mechanical connection, and in order to avoid screw loosening, the following modes are commonly adopted at present:

first, a washer with a rotation stopping function, such as an elastic washer, a tapered washer, or a washer with a dent on the surface, is used to prevent the screw from rotating loosely by increasing the friction between the screw head and the washer. However, by adopting the mode, the screws are not mutually connected, a whole rotation stopping and anti-loosening system cannot be formed, the rotation stopping performance is poor, and in the screw installation process, the screw head also needs to be stopped by a wrench, so that the screw is inconvenient to disassemble and assemble.

Second, the invention patent application No. 201680043557.0 discloses a spoke locking structure for preventing the screw from rotating by an anti-rotation protruding piece, so as to prevent the screw from loosening, but the structure is to lock the screw first and then bend the anti-rotation protruding piece, which is troublesome in operation and difficult to ensure that the side surface of the screw matches with the anti-rotation protruding piece.

Improvements are therefore needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locking mechanism of only changeing backing plate and adopting this kind of only changeing backing plate adopts this technical scheme, and locking mechanism locking is convenient, and only changeing backing plate can only changeing locking, and simple structure to the screw. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rotation stopping backing plate, more than two rotation stopping grooves are seted up to one side of backing plate, the tank bottom of rotation stopping groove is equipped with the through-hole, rotation stopping groove is including the rotation stopping wall. In the process of screw thread fastening, the screw head is arranged in the rotation stopping groove, the screw thread end penetrates through the through hole and is connected with the nut, and the rotation stopping wall can prevent the screw arranged in the rotation stopping groove from rotating, so that in the process of fastening or loosening, only the nut is rotated. In addition, the anti-loosening function is also realized by arranging the anti-rotation wall.

Furthermore, the rotation stopping groove is a polygonal rotation stopping groove, and the rotation stopping wall is a side wall of the polygonal rotation stopping groove. By adopting the structure, the head of the screw can adopt a shape matched with the polygonal rotation stopping groove, and if the rotation stopping groove adopts a hexagon, the screw adopts a hexagonal screw.

Alternatively, the anti-rotation groove is a circular anti-rotation groove with a straight wall, and the anti-rotation wall is a straight wall. With such a rotation stop groove, the screw may be a round head screw, but the round head side is machined to a flat surface to match a flat wall.

The locking mechanism comprises a rotation stopping base plate and a screw, wherein more than two rotation stopping grooves are formed in one side of the base plate, through holes are formed in the bottoms of the rotation stopping grooves, and the rotation stopping grooves comprise rotation stopping walls. The screw quantity and the number of the rotation stopping grooves are matched, the screw head of the screw is arranged in the rotation stopping grooves, and the thread section of the screw extends out of the through hole and is connected with a nut in a threaded mode.

Furthermore, the rotation stopping groove is in clearance fit or transition fit with the screw head. Adopt excessive cooperation, increase the screw head and the laminating degree in groove of splining, further prevent that the screw is not hard up, in addition, because the through-hole of splining the tank bottom is clearance fit with the cadre of screw, consequently splining the clearance fit of groove and screw head can not lead to the interference of screw and through-hole pore wall.

Furthermore, the screw head is polygonal, the rotation stopping groove is a polygonal groove matched with the screw head, and the rotation stopping wall is a side wall of the polygonal rotation stopping groove.

Further, the screw head is an outer hexagonal screw head, and the rotation stopping groove is a hexagonal groove.

Further, the rotation stopping groove is a circular rotation stopping groove with a straight wall, and the rotation stopping wall is a straight wall.

By adopting the technical scheme, the following beneficial effects can be achieved:

firstly, when the screw is screwed down or unscrewed, a spanner does not need to be sleeved on the screw head, and only the spanner is sleeved on the nut at the other end, so that the locking mechanism is convenient to disassemble and assemble.

Secondly, the rotation stopping base plate is simple in structure and convenient to process.

Thirdly, because a plurality of screws share one rotation stopping base plate, the screws form a whole after being fastened, and the connecting strength is improved.

Fourthly, for preventing the rotation through increasing the friction, the screw rotation can be avoided more directly by adopting the rotation stopping wall, and a good anti-loosening effect is achieved.

Drawings

Fig. 1 is a perspective view of a stopping pad.

Fig. 2 is a plan view of the rotation plate.

Fig. 3 is a schematic view of a locking mechanism.

Fig. 4 is a schematic view of a circular anti-rotation slot.

Detailed Description

As shown in fig. 1, 2 and 3, the locking mechanism comprises a rotation stopping base plate 1 and screws 2, wherein more than two rotation stopping grooves 3 are formed in one side of the base plate 1, through holes 4 are formed in the bottoms of the rotation stopping grooves 3, the rotation stopping grooves 3 comprise rotation stopping walls 5, as shown in fig. 3, the number of the screws 2 is matched with the number of the rotation stopping grooves 3, screw heads of the screws 2 are arranged in the rotation stopping grooves 3, thread sections of the screws 2 extend out of the through holes 4, sequentially penetrate through a first connecting piece 7 and a second connecting piece 8 to be connected, and the threads are connected with nuts 6.

The head of the screw 2 is arranged in the rotation-stopping groove 3, and the screw 2 cannot rotate under the action of the rotation-stopping wall 5, so that the head of the screw matches the shape of the rotation-stopping groove 3, and two forms of the rotation-stopping groove 3 are described below:

first, the screw 2 is an outer hexagonal screw 2, the rotation stopping groove 3 is a hexagonal groove matched with the screw head, and it can be understood that the rotation stopping wall 5 is a side wall of the hexagonal rotation stopping groove 3.

Second, as shown in fig. 3, the detent groove 3 is a circular detent groove 3 having a straight wall, and the detent wall 5 is a straight wall. The screw 2 is a round head screw 2, but the round head side is processed into a plane to match the flat wall.

Of course, the structure of the rotation stopping groove 3 is not limited to the above two forms, and all the rotation stopping grooves 3 that can accommodate the screw head and are provided with the rotation stopping walls 5 for limiting the rotation of the screw head are the rotation stopping grooves 3 defined in the claims of the present invention.

In the above technical solution, the rotation stopping groove 3 is in clearance fit or transition fit with the screw head. Adopt excessive cooperation, increase the screw head and the laminating degree of only changeing groove 3, further prevent that screw 2 from becoming flexible, in addition, because only changeing the through-hole 4 of 3 bottoms of groove and screw 2's cadre and be clearance fit, consequently only changeing the clearance fit of groove 3 and screw head and can not lead to the interference of

screw

2 and 4 pore walls of through-hole.

firstly, when the screw 2 is screwed or unscrewed, a spanner does not need to be sleeved on the screw head, and only 6 sets of spanners on the nut at the other end are used for rotation, so that the locking mechanism is convenient to disassemble and assemble.

Secondly, the rotation stopping base plate 1 is simple in structure and convenient to process.

Thirdly, because a plurality of screws 2 share one rotation stopping cushion plate 1, the screws 2 are fastened to form a whole, and the connecting strength is increased.

Fourthly, for preventing the rotation through increasing the friction force, the rotation of the screw 2 can be more directly avoided by adopting the rotation stopping wall 5, and a good anti-loosening effect is achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A rotation stopping base plate is characterized in that: more than two rotation stopping grooves are formed in one side of the base plate, through holes are formed in the bottoms of the rotation stopping grooves, and the rotation stopping grooves comprise rotation stopping walls.

2. The rotation stop shim plate of claim 1, wherein: the rotation stopping groove is a polygonal rotation stopping groove, and the rotation stopping wall is a side wall of the polygonal rotation stopping groove.

3. The rotation stop shim plate of claim 1, wherein: the anti-rotation groove is a circular anti-rotation groove with a straight wall, and the anti-rotation wall is a straight wall.

4. A locking mechanism using the rotation stopping pad of claim 1, wherein: still include the screw that matches with the groove number of ending, the screw head of screw is established in the groove of ending, the screw thread section of screw stretches out and threaded connection has the nut from the through-hole.

5. The latch mechanism of claim 4, wherein: the rotation stopping groove is in clearance fit or transition fit with the screw head.

6. The latch mechanism of claim 4, wherein: the screw head is polygonal, the rotation stopping groove is a polygonal groove matched with the screw head, and the rotation stopping wall is a side wall of the polygonal rotation stopping groove.

7. The latch mechanism of claim 6, wherein: the screw head is outer hexagonal screw head, the groove of ending changes is hexagonal groove.

8. The latch mechanism of claim 4, wherein: the anti-rotation groove is a circular anti-rotation groove with a straight wall, and the anti-rotation wall is a straight wall.