CN214788482U

CN214788482U - Non-loose screw assembly

Info

Publication number: CN214788482U
Application number: CN202121018051.9U
Authority: CN
Inventors: 董树平; 张跃春
Original assignee: Nanjing Jiangkai Auto Parts Co ltd
Current assignee: Nanjing Jiangkai Auto Parts Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-19
Anticipated expiration: 2031-05-13

Abstract

The utility model belongs to the screw field, especially, screw combination spare is not pulled off in pine, which comprises a screw, the top of screw is provided with fixed joint, be provided with the horizontal pole in the fixed joint, the gasket has been placed at the top of screw, and gasket and the corresponding setting of horizontal pole. The utility model discloses the screw bottom has increased a gasket, guarantees that the screw can not drop after whole loosening, and simultaneously, the screw is when using, and it is spacing to stretch out through the one end that the extrusion shell fragment drove Z type pole, and effectual assurance screw position can not drop.

Description

Non-loose screw assembly

Technical Field

The utility model relates to a screw technical field especially relates to a screw sub-assembly is not taken off in pine.

Background

The screw is a tool for fastening each part step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction force of an object, is the most common fastener and is widely applied to various industries. General screw includes screw cap and screw rod, and mostly is made of metal material. However, the conventional screw is easily detached when used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a non-detachable screw assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a screw combination spare does not come loose, includes the screw, the top of screw is provided with fixed joint, be provided with the horizontal pole in the fixed joint, the gasket has been placed at the top of screw, and the gasket sets up with the horizontal pole is corresponding.

Preferably, one side of the screw is provided with a Z-shaped hole, a Z-shaped rod is movably mounted in the Z-shaped hole, one end of the Z-shaped rod extends out of the Z-shaped hole, one side of the screw is provided with a vertical groove, the vertical groove is communicated with the Z-shaped hole, an extrusion elastic sheet is rotatably mounted on the inner wall of the top of the vertical groove, and the bottom of the extrusion elastic sheet is rotatably mounted on one end of the Z-shaped rod extending out of the Z-shaped hole.

Preferably, the screw is sleeved with a spring, and the spring is located below the gasket.

Preferably, the fixed joint is of a convex structure, a square notch is formed in one side of the fixed joint, and the cross rod is located in the square notch.

Preferably, the inner wall of the bottom of the square notch is provided with a through hole, and the top of the screw penetrates through the through hole.

The utility model discloses in, a bolt sub-assembly that takes off, screw bottom have increased a gasket, guarantee that the screw can not drop after all loosening, and simultaneously, the screw is when using, and the one end that drives Z type pole through the extrusion shell fragment stretches out spacingly, and effectual assurance screw position can not drop.

Drawings

Fig. 1 is a schematic structural view of a captive screw assembly according to the present invention;

fig. 2 is a schematic view of a screw structure of a non-detachable screw assembly according to the present invention.

In the figure: 1 screw, 2 springs, 3 gaskets, 4 fixed joints, 5 cross bars, 6Z-shaped holes, 7Z-shaped rods, 8 vertical grooves and 9 extrusion elastic sheets.

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.

Referring to fig. 1-2, a loose and free screw assembly comprises a screw 1, a fixed joint 4 is arranged at the top of the screw 1, a cross rod 4 is arranged in the fixed joint 4, a gasket 3 is placed at the top of the screw 1, and the gasket 3 and the cross rod 4 are arranged correspondingly.

The utility model discloses in, Z type hole 6 has been seted up to one side of screw 1, and movable mounting has Z type pole 7 in the Z type hole 6, and outside the one end of Z type pole 7 extended to Z type hole 6, vertical groove 8 has been seted up to one side of screw 1, and vertical groove 8 was linked together with Z type hole 6, rotates on the top inner wall of vertical groove 8 and installs extrusion shell fragment 9, and the bottom of extrusion shell fragment 9 rotates to install and serve at Z type pole 7 and extend to Z type hole 6 outer.

The utility model discloses in, the spring 2 has been cup jointed on the screw 1, and the spring 2 is located the below of gasket 3.

The utility model discloses in, fixed joint 4 is type of calligraphy structure, and one side of fixed joint 4 has seted up square notch, and horizontal pole 5 is located square notch.

The utility model discloses in, seted up the through-hole on the bottom inner wall of square notch, the through-hole is run through at the top of screw 1.

In the utility model, the screw 1, the spring 2 and the gasket 3 form a non-loosening screw, the screw 1 of the non-loosening screw is connected with the fixed joint 4 through screw threads, when the screw 1 of the non-loosening screw is screwed up upwards, the cross rod 5 and the fixed joint 4 are fixed into a whole, when the cross rod 5 needs to be taken down, the screw 1 of the non-loosening screw is loosened downwards until the gasket 3 of the non-loosening screw is attached to the lower opening surface of the fixed joint 4, and meanwhile, because the outer diameter of the gasket 3 of the non-loosening screw is larger than the inner thread aperture of the fixed joint 4, the non-loosening screw can be ensured not to fall off; meanwhile, when the screw 1 is used, the through hole extrudes the extrusion elastic sheet 9, the extrusion elastic sheet 9 drives the Z-shaped rod 7 to move leftwards, and the left end of the Z-shaped rod 7 moves out of the Z-shaped hole 6 and is clamped at the square notch.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The non-loosening screw assembly comprises a screw (1) and is characterized in that a fixed joint (4) is arranged at the top of the screw (1), a cross rod (5) is arranged in the fixed joint (4), a gasket (3) is placed at the top of the screw (1), and the gasket (3) and the cross rod (5) are arranged correspondingly.

2. The non-falling loose screw assembly according to claim 1, wherein a Z-shaped hole (6) is formed in one side of the screw (1), a Z-shaped rod (7) is movably mounted in the Z-shaped hole (6), one end of the Z-shaped rod (7) extends out of the Z-shaped hole (6), a vertical groove (8) is formed in one side of the screw (1), the vertical groove (8) is communicated with the Z-shaped hole (6), an extrusion elastic sheet (9) is rotatably mounted on the inner wall of the top of the vertical groove (8), and the bottom of the extrusion elastic sheet (9) is rotatably mounted on one end of the Z-shaped rod (7) extending out of the Z-shaped hole (6).

3. A captive screw assembly according to claim 1, wherein the screw (1) has a spring (2) fitted around it, and the spring (2) is located below the washer (3).

4. The screw assembly according to claim 1, wherein the fixed joint (4) is of a convex structure, one side of the fixed joint (4) is provided with a square notch, and the cross bar (5) is located in the square notch.

5. A releasable screw assembly according to claim 4, wherein the square recess has a through hole in its bottom inner wall, the top of the screw (1) passing through the through hole.