CN220268178U - Anti-loosening check screw - Google Patents

Abstract

The utility model discloses a locking check screw which comprises a screw cap, wherein a screw rod is fixedly welded on the lower end face of the screw cap, an upper screw cap is connected to the outer side of the screw rod through threads, an anti-slip gasket is fixedly welded on the side face of the upper screw cap, a lower screw cap is connected to the outer side of the screw rod through threads, the locking check screw is screwed down through rotation, a sleeve and a rubber anti-slip pad are driven to press the inner side face of the upper screw cap, the anti-slip gasket is tightly attached to the gasket, the screw cap is conveniently and fixedly screwed down, the upper screw cap and the lower screw cap are prevented from loosening, anti-slip strips are fixedly arranged on the side faces of the anti-slip gasket, the contact area of the upper screw cap and the lower screw cap can be increased through the design of the sleeve and the rubber anti-slip pad, the friction force is increased, the nut can be disassembled by using an inner hexagonal wrench, a square wrench or a cross, the disassembly method is increased, and the use convenience is improved.

Description

Anti-loosening check screw

Technical Field

The utility model relates to the technical field of screw parts, in particular to a locking non-return screw.

Background

The screw is a tool for progressively fastening the machine parts by utilizing the physical and mathematical principles of the circular rotation and friction force of the inclined plane of the object, and can be seen everywhere in production and living, and the application is very wide.

At present, when a screw is used, a screw main body is screwed into an installation body firstly, then a plug is inserted into a jack, a clamping block is kept aligned with the through groove in the inserting process, an expansion screw is aligned between arc-shaped ring pieces and screwed in along a thread groove after the plug is inserted, the arc-shaped ring pieces are spread in the screwing process of the expansion screw, the clamping block protrudes out of the through groove to the outside of the screw main body, the screw main body is fastened, the loosening condition is reduced, and the fastening stability of the screw is improved; the outer ring outer wall is provided with the outer spiral groove, when needed, the through hole of the ring can be sleeved on the outer periphery of the end ring, the inner spiral groove and the outer spiral groove are aligned and screwed, the ring is further fixed at the outer ring position of the end ring, and when the screw is fastened, the contact area between the ring and the mounting surface is increased through the ring, so that the fastening stability is improved.

For example, authorize a locking check screw that is disclosed in bulletin number CN217814432U, including the screw main part, still include end ring and locking mechanism, screw main part one end integrated into one piece has the end ring, the inside locking mechanism that is provided with of screw main part, locking mechanism includes jack, logical groove, inserted post, arc ring piece, screw thread groove and fixture block, the jack of inserting the inserted post has been seted up to the inside screw main part, the logical groove and logical groove that are linked together with the jack inside have been seted up on the screw main part surface and are two, and inserted post tip is provided with the arc ring piece of tensioning effect, arc ring piece surface integrated into one piece have with lead to the fixture block that the groove position corresponds. However, the specific structure of the expansion screw is not shown in the drawings of the specification, and it is not clear how the expansion screw is aligned between the arc-shaped ring pieces and screwed in along the thread groove, so that the assembly and disassembly are inconvenient, and the assembly and disassembly method is larger.

As is clear from the solutions disclosed in the above prior patent documents, the disassembly and assembly are inconvenient, and the disassembly and assembly method is single, so that improvement of the prior art is required.

Disclosure of Invention

The utility model aims to provide a locking check screw, which solves the problems of inconvenient disassembly and assembly and single disassembly and assembly method.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a locking non return screw that moves, includes the nut, the fixed welding of lower terminal surface of nut has the screw rod, there is the upper nut in the outside of screw rod through threaded connection, the fixed welding of side of upper nut has anti-skidding gasket, the outside of screw rod has the lower nut through threaded connection, the fixed welding of upper end of lower nut has the sleeve, telescopic up end fastening glues and has rubber anti-skidding pad, the fixed welding of up end of lower nut has the gasket, the up end of nut is provided with interior hexagonal groove, the up end of nut is provided with the cross groove.

Preferably, the lower end face of the anti-slip gasket is tightly attached to the gasket, the screw is sleeved in the gasket, the sleeve and the rubber anti-slip gasket are driven to be tightly pressed on the inner side face of the upper nut by rotating the lower nut, the anti-slip gasket is tightly attached to the gasket, the screw is fixedly screwed in a convenient mode, and the upper nut and the lower nut are prevented from loosening.

Preferably, the screw rod is sleeved in the anti-slip gasket, the welding sleeve is fixed in the gasket, and the anti-slip strip is fixedly arranged on the side face of the anti-slip gasket, so that good anti-loosening performance can be achieved on the upper nut and the lower nut.

Preferably, the inner side surface of the upper nut is tightly attached to the rubber anti-slip pad, the screw rod is sleeved in the rubber anti-slip pad, the sleeve is connected with the screw rod through threads, the contact area of the upper nut and the lower nut can be increased through the design of the sleeve and the rubber anti-slip pad, the friction force is increased, and loosening is prevented.

Preferably, the anti-slip gasket is fixedly welded on the lower end face of the nut, the inner side face of the upper nut is tightly attached to the sleeve, and the nut can be disassembled and assembled by using an inner hexagonal wrench, a straight line or a cross through the design of the inner hexagonal groove and the cross groove, so that a disassembling and assembling method is increased, and the convenience in use is improved.

Compared with the prior art, the utility model has the beneficial effects that:

1. the lower end surface of the anti-slip gasket is tightly attached to the gasket, the screw is sleeved in the gasket, the sleeve and the rubber anti-slip gasket are driven to be tightly pressed on the inner side surface of the upper nut by rotating and tightening the lower nut, the anti-slip gasket is tightly attached to the gasket, the screw is conveniently and fixedly screwed, and the upper nut and the lower nut are prevented from loosening.

2. According to the anti-slip gasket, the screw rod is sleeved in the anti-slip gasket, the sleeve is fixedly welded in the gasket, and the anti-slip strips are fixedly arranged on the side surfaces of the anti-slip gasket, so that good anti-loosening performance can be achieved for the upper nut and the lower nut.

3. According to the utility model, the inner side surface of the upper nut is tightly attached to the rubber anti-skid pad, the screw is sleeved in the rubber anti-skid pad, the screw is connected with the inside of the sleeve through threads, and the contact area between the upper nut and the lower nut can be increased, the friction force is increased, and loosening is prevented by the design of the sleeve and the rubber anti-skid pad.

4. According to the utility model, the anti-slip gasket is fixedly welded on the lower end surface of the nut, the inner side surface of the upper nut is tightly attached to the sleeve, and the nut can be disassembled and assembled by using an inner hexagonal wrench, a straight line or a cross, so that the disassembly and assembly method is increased, and the use convenience is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged cross-sectional view of the upper nut of the present utility model;

FIG. 3 is a top view of the cleat according to the present utility model;

fig. 4 is a top view of the nut of the present utility model.

In the figure: 1 nut, 11 screw rod, 12 upper nut, 13 anti-slip gasket, 14 lower nut, 15 sleeve, 16 rubber anti-slip pad, 17 gasket, 2 inner hexagonal groove, 21 cross groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, an anti-loosening check screw in the drawings comprises a screw cap 1, wherein a screw rod 11 is fixedly welded on the lower end face of the screw cap 1, an upper nut 12 is connected to the outer side of the screw rod 11 through threads, an anti-loosening gasket 13 is fixedly welded on the side face of the upper nut 12, a lower nut 14 is connected to the outer side of the screw rod 11 through threads, a sleeve 15 is fixedly welded at the upper end of the lower nut 14, a rubber anti-loosening gasket 16 is tightly adhered on the upper end face of the sleeve 15, a gasket 17 is fixedly welded on the upper end face of the lower nut 14, an inner hexagonal groove 2 is formed in the upper end face of the screw cap 1, and a cross groove 21 is formed in the upper end face of the screw cap 1.

For the convenience dismouting screw, the gasket 17 is hugged closely to the lower terminal surface of anti-skidding gasket 13, the screw rod 11 is cup jointed to the inside of gasket 17, turn round down nut 14 through rotating, drive sleeve 15 and rubber slipmat 16 compress tightly the medial surface of nut 12, anti-skidding gasket 13 hugs closely gasket 17, the fixed screw rod 11 of turning round of easy to assemble prevents that nut 12 and lower nut 14 from becoming flexible, the inside of anti-skidding gasket 13 cup joints screw rod 11, the inside fixed welding sleeve 15 of gasket 17 through the fixed antislip strip that is provided with in anti-skidding gasket 13 side, can play good anti-loosening performance to nut 12 and lower nut 14.

In this embodiment, through turning and turning down nut 14, drive sleeve 15 and rubber slipmat 16 compress tightly the nut 12 medial surface, and slipmat 13 hugs closely gasket 17, and the fixed screw rod 11 of turning down of easy to assemble prevents that nut 12 and lower nut 14 from becoming flexible, through fixedly being provided with the antislip strip in slipmat 13 side, can play good anti-loosening performance to nut 12 and lower nut 14.

Examples

Referring to fig. 1-4, this embodiment further describes an anti-loosening check screw for example 1, which includes a nut 1, a screw rod 11 is fixedly welded on a lower end surface of the nut 1, an upper nut 12 is connected on an outer side of the screw rod 11 through a thread, an anti-loosening gasket 13 is fixedly welded on a side surface of the upper nut 12, a lower nut 14 is connected on an outer side of the screw rod 11 through a thread, a sleeve 15 is fixedly welded on an upper end of the lower nut 14, a rubber anti-loosening pad 16 is tightly and firmly adhered on an upper end surface of the sleeve 15, a gasket 17 is fixedly welded on an upper end surface of the lower nut 14, an inner hexagonal groove 2 is arranged on an upper end surface of the nut 1, and a cross groove 21 is arranged on an upper end surface of the nut 1.

In order to increase the disassembly and assembly method, the inner side surface of the upper nut 12 is tightly attached to the rubber anti-slip pad 16, the screw 11 is sleeved in the rubber anti-slip pad 16, the inner part of the sleeve 15 is connected with the screw 11 through threads, the contact area between the upper nut 12 and the lower nut 14 can be increased by the design of the sleeve 15 and the rubber anti-slip pad 16, friction force is increased, loosening is prevented, the anti-slip gasket 13 is fixedly welded on the lower end surface of the nut 1, the inner side surface of the upper nut 12 is tightly attached to the sleeve 15, and the nut 1 can be disassembled by using an inner hexagonal wrench, a character or a cross by the design of the inner hexagonal groove 2 and the cross groove 21, so that the disassembly and assembly method is increased, and the use convenience is improved.

In this embodiment, the design of the sleeve 15 and the rubber anti-slip pad 16 can increase the contact area of the upper nut 12 and the lower nut 14, increase the friction force, prevent loosening, and the design of the inner hexagonal groove 2 and the cross groove 21 makes the nut 1 detachable by using an inner hexagonal wrench, a straight line or a cross, so that the disassembly and assembly method is increased, and the use convenience is improved.

This locking check screw, through turning and turning tightly nut 14 down, drive sleeve 15 and rubber slipmat 16 compress tightly nut 12 medial surface, slipmat 13 hugs closely gasket 17, the fixed tight screw rod 11 of turning round of easy to assemble, prevent nut 12 and nut 14 loose down, through fixedly being provided with the antislip strip in slipmat 13 side, can play good anti-loosening performance to nut 12 and nut 14 down, sleeve 15 and rubber slipmat 16's design can increase nut 12 and nut 14 area of contact down, increase frictional force, prevent not hard up, hexagon socket 2 and cross groove 21's design makes nut 1 can use hexagon socket spanner, the line plays or cross plays and carries out the dismouting, the dismouting method has been increased, the use convenience is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a locking non return screw, includes nut (1), its characterized in that: the anti-slip nut is characterized in that a screw rod (11) is fixedly welded on the lower end face of the nut (1), an upper nut (12) is fixedly welded on the outer side of the screw rod (11) through threads, an anti-slip gasket (13) is fixedly welded on the side face of the upper nut (12), a lower nut (14) is fixedly welded on the outer side of the screw rod (11) through threads, a sleeve (15) is fixedly welded on the upper end of the lower nut (14), a rubber anti-slip pad (16) is tightly adhered on the upper end face of the sleeve (15), a gasket (17) is fixedly welded on the upper end face of the lower nut (14), an inner hexagonal groove (2) is formed in the upper end face of the nut (1), and a cross groove (21) is formed in the upper end face of the nut (1).

2. The anti-loosening check screw of claim 1, wherein: the lower end face of the anti-slip gasket (13) is tightly attached to the gasket (17), and a screw rod (11) is sleeved in the gasket (17).

3. The anti-loosening check screw of claim 1, wherein: the anti-skid gasket (13) is internally sleeved with a screw (11), and a welding sleeve (15) is fixed in the gasket (17).

4. The anti-loosening check screw of claim 1, wherein: the inner side surface of the upper nut (12) is tightly attached to a rubber anti-slip pad (16), a screw rod (11) is sleeved in the rubber anti-slip pad (16), and the screw rod (11) is connected to the inside of the sleeve (15) through threads.

5. The anti-loosening check screw of claim 1, wherein: the anti-slip gasket (13) is fixedly welded on the lower end face of the nut (1), and the inner side face of the upper nut (12) is tightly attached to the sleeve (15).