CN214499735U

CN214499735U - Bolt and nut protective cover

Info

Publication number: CN214499735U
Application number: CN202023268890.4U
Authority: CN
Inventors: 姚惠芬
Original assignee: Wu'an Zhuyou Standard Parts Manufacturing Co ltd
Current assignee: Wu'an Zhuyou Standard Parts Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-26
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a bolt and nut protection casing, concretely relates to bolt protection field, including joint protection seat and end protective cover, nut chamber and end cavity have been seted up respectively to the inboard of joint protection seat and end protective cover, and the bottom fixed mounting of end protective cover has the joint to follow, and the joint is fixed along the inboard joint with the nut chamber, and the screw rod through-hole has been seted up to the bottom surface in nut chamber, and the inboard of screw rod through-hole is equipped with locking jump ring, and the lockpin caulking groove has been seted up to the inboard in nut chamber, and the bottom fixedly connected with meshing locking round pin on joint edge, and the inside fixed mounting of end protective cover has a seal plate. Above-mentioned scheme, this protection casing structure adopts the split type connection structure of joint protection seat and end protective cover, fixes through cup jointing of joint protection seat and screw rod to utilize the joint to follow and joint protection seat and carry out the joint, and the butt effect of locking jump ring prevents not hard up of nut, improves the practicality of this protection casing.

Description

Bolt and nut protective cover

Technical Field

The utility model relates to a bolt protection technical field, more specifically says, the utility model specifically is a bolt and nut protection casing.

Background

With the increasing parametrization of industrial equipment, the requirements of fasteners are also increasing, at present, equipment installation, pipeline connection and the like are all fixed by bolts and nuts, but in the processes of transportation, installation and debugging, the threaded parts of the nuts and top bolts are exposed in the air and are very easy to collide, damage or oxidize and corrode, so that the use is influenced, and the protection of the threaded fasteners is more and more paid attention recently.

In the prior art, an integral protective sleeve is generally adopted to protect exposed bolt and nut parts, the bolt and the nut can rust and be corroded after a long time, the bolt and the nut are rusted together, and great troubles are caused to the maintenance and the disassembly of equipment, particularly in the chemical industry.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a bolt and nut protection casing adopts the split type connection structure of joint protection seat and end protective cover, fixes through cup jointing of joint protection seat and screw rod to utilize the joint to follow and joint protection seat to joint, realize the sealed protection to bolt end and nut, with the problem of proposing in solving above-mentioned background art.

In order to achieve the purpose, the utility model provides a following technical scheme, a bolt nut protection casing, including joint protection seat and end protective cover, nut chamber and end cavity have been seted up respectively to the inboard of joint protection seat and end protective cover, the bottom fixed mounting of end protective cover has the joint edge, the joint edge is fixed with the inboard joint in nut chamber, the screw rod through-hole has been seted up to the bottom surface in nut chamber, the inboard of screw rod through-hole is equipped with locking jump ring, the lockpin caulking groove has been seted up to the inboard in nut chamber, the bottom fixedly connected with meshing locking round pin that the joint was followed, the outside of meshing locking round pin and the inboard slip butt in lockpin caulking groove, the inside fixed mounting of end protective cover has a sealed bulkhead, it has the drier to fill between the top surface of sealed bulkhead and the top surface of end cavity inner chamber.

Preferably, locking jump ring is low carbon steel component, the side of meshing lock round pin is smooth plain noodles structure, meshing lock round pin, joint edge and end protective cover are integrated into one piece structure.

Preferably, the bottom surface of joint protection seat has seted up the ring channel and has the sealed rubber ring in the joint, the sealed rubber ring is the polytetrafluoroethylene material component, the surface of sealed rubber ring and the bottom surface interference fit of joint protection seat.

Preferably, the surface of the sealing partition board is provided with a through hole and a non-woven cotton layer, and the drying agent is in a calcium oxide powder particle structure.

Preferably, the peripheral side of the joint edge is in interference fit with the inner side of the nut cavity, and the joint protection seat, the end protection cover and the joint edge are made of polyethylene plastic materials.

Preferably, the cross-section of joint protection seat is the hexagon structure, the week side of joint protection seat is equipped with a plurality of fastening ends and touches, fastening end touches and is protruding columnar structure, the bottom surface of joint protection seat is equipped with anti-skidding bead structure.

The utility model discloses a technological effect and advantage:

1. in the scheme, the protective cover structure adopts a split type connecting structure of the joint protective seat and the end protective cover, is fixed by sleeving the joint protective seat and the screw rod, is jointed with the joint protective seat by utilizing the joint edge, realizes the sealing protection of the bolt end and the nut, improves the protective performance of the protective cover, and prevents the looseness of the nut by the butt of the meshing locking pin and the peripheral side of the nut and the butt action of the anti-loosening snap spring, thereby improving the practicability of the protective cover;

2. among the above-mentioned scheme, carry out the drying and dehumidification to the sealed cavity that joint protection seat and end protective cover are constituteed through the inside at the end protective cover that sets up sealed baffle and drier, reduce bolt and nut ambient humidity, prevent that bolt corrosion and sealed environment can effectively avoid the influence of miscellaneous dirt and water stain, further improve the barrier propterty of this protection casing.

Drawings

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

fig. 2 is a schematic cross-sectional structure diagram of the present invention;

fig. 3 is a schematic structural diagram of the utility model at a in fig. 2;

fig. 4 is a schematic top view of the locking pin of the present invention.

The reference signs are:

1. a joint protection seat; 2. an end protective cover; 3. a meshing locking pin; 4. sealing the partition plate; 5. a desiccant; 6. sealing the rubber ring; 7. a locking clamp spring; 11. the fastening ends are contacted; 12. a nut cavity; 13. a screw through hole; 14. a lock pin caulking groove; 21. a joining edge; 22. the end head has a cavity.

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 work belong to the protection scope of the present invention.

The embodiment of the present invention provides a protective cover for bolt and nut, as shown in fig. 1 to fig. 4, including a joint protective seat 1 and an end protective cover 2, a nut cavity 12 and an end cavity 22 are respectively disposed on the inner sides of the joint protective seat 1 and the end protective cover 2, a joint edge 21 is fixedly disposed at the bottom end of the end protective cover 2, the joint edge 21 is fixedly connected to the inner side of the nut cavity 12, a screw through hole 13 is disposed at the bottom surface of the nut cavity 12, a locking clip 7 is disposed at the inner side of the screw through hole 13, a lock pin caulking groove 14 is disposed at the inner side of the nut cavity 12, an engaging locking pin 3 is fixedly connected to the bottom end of the joint edge 21, the outer side of the engaging locking pin 3 is slidably abutted to the inner side of the lock pin caulking groove 14, a seal partition plate 4 is fixedly disposed inside the end protective cover 2, a drying agent 5 is filled between the top surface of the seal partition plate 4 and the top surface of the inner cavity 22, the periphery of the joint edge 21 is in interference fit with the inner side of the nut cavity 12, the joint protection seat 1, the end protection cover 2 and the joint edge 21 are made of polyethylene plastic materials.

In this embodiment, the anti-loose snap spring 7 is a low carbon steel component, the side surface of the engagement locking pin 3 is a smooth surface structure, the engagement locking pin 3, the joint edge 21 and the end protection cover 2 are integrally formed, engagement locking is performed by abutting the engagement locking pin 3 against the periphery of the nut, and the abutting action of the anti-loose snap spring 7 prevents the nut from loosening.

In this embodiment, the bottom surface of the joint protection seat 1 is provided with an annular groove and is clamped with a sealing rubber ring 6, the sealing rubber ring 6 is a component made of polytetrafluoroethylene, and the surface of the sealing rubber ring 6 is in interference fit with the bottom surface of the joint protection seat 1, so that the sealing performance of the protection cover is improved.

In the embodiment, the surface of the sealing partition plate 4 is provided with the through hole and the non-woven cotton layer, the drying agent 5 is in a calcium oxide powder particle structure, the environmental humidity of the bolt and the nut is reduced through the adsorption effect of drying agent powder, the bolt is prevented from being rusted, and the influence of dust and water stain can be effectively avoided in the sealing environment.

In this embodiment, the cross-section of the joint boot 1 is a hexagonal structure, the periphery of the joint boot 1 is provided with a plurality of fastening end contacts 11, the fastening end contacts 11 are in a convex columnar structure, the bottom surface of the joint boot 1 is provided with an anti-slip rib structure, the fastening end contacts 11 are used to facilitate the tightening of the joint boot 1 and prevent the loosening of the joint boot 1 by the anti-slip ribs.

The working process of the utility model is as follows:

according to the scheme, the protective cover structure adopts a split type connecting structure of the joint protective seat and the end protective cover, the joint protective seat 1 is tightly screwed to the inside of the nut cavity 12 through the sleeve joint of the joint protective seat 1 and the screw rod, the joint protective seat 1 is pressed and fixed, the joint protective seat 1 is jointed by the joint edge 21, the sealing protection of the bolt end and the nut is realized, the protective performance of the protective cover is improved, the meshing locking is carried out through the meshing locking pin 3 and the butt of the peripheral side of the nut, the loosening of the nut is prevented through the butt action of the anti-loosening snap spring 7, and the practicability of the protective cover is improved;

among the above-mentioned scheme, carry out the drying and dehumidification to the sealed cavity that joint protection seat 1 and end protective cover 2 are constituteed through the inside at end protective cover 2 sets up sealed baffle 4 and drier 5, and adsorption through the drier powder reduces bolt and nut ambient humidity, prevents that bolt corrosion and sealed environment can effectively avoid the influence of miscellaneous dirt and water stain, further improves the barrier propterty of this protection casing.

Finally, it should be noted that, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

secondly, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

finally, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bolt and nut protection casing, includes joint protection seat (1) and end protective cover (2), its characterized in that, nut chamber (12) and end cavity (22) have been seted up respectively to the inboard of joint protection seat (1) and end protective cover (2), the bottom fixed mounting of end protective cover (2) has the joint to follow (21), the joint is followed (21) and is fixed with the inboard joint of nut chamber (12), screw rod through-hole (13) have been seted up to the bottom surface of nut chamber (12), the inboard of screw rod through-hole (13) is equipped with locking jump ring (7), the inboard of nut chamber (12) has been seted up caulking groove (14), the bottom fixed connection that the joint lockpin was followed (21) meshes lock pin (3), the outside of meshing lock pin (3) and the inboard slip butt of lockpin caulking groove (14), the inside fixed mounting of end protective cover (2) has sealed baffle (4), and a drying agent (5) is filled between the top surface of the sealing partition plate (4) and the top surface of the inner cavity of the end head cavity (22).

2. The protective cover for bolts and nuts according to claim 1, wherein the locking circlip (7) is a low carbon steel member, the side surface of the engagement locking pin (3) is smooth and smooth, and the engagement locking pin (3), the joint edge (21) and the end protecting cover (2) are of an integrally formed structure.

3. The bolt and nut shield cover according to claim 1, wherein the bottom surface of the joint shield base (1) is provided with an annular groove and is clamped with a sealing rubber ring (6), the sealing rubber ring (6) is a component made of polytetrafluoroethylene, and the surface of the sealing rubber ring (6) is in interference fit with the bottom surface of the joint shield base (1).

4. The bolt and nut shield according to claim 1, characterized in that the surface of the sealing partition plate (4) is perforated and provided with a non-woven cotton layer, and the drying agent (5) is in a calcium oxide powder particle structure.

5. The bolt and nut shield according to claim 1, characterized in that the peripheral side of the joint edge (21) is in interference fit with the inner side of the nut cavity (12), and the joint shield seat (1), the end shield (2) and the joint edge (21) are made of polyethylene plastic material.

6. The protective cover for bolts and nuts according to claim 1, characterized in that the cross section of the joint protective seat (1) is a hexagonal structure, a plurality of fastening end contacts (11) are arranged on the periphery of the joint protective seat (1), the fastening end contacts (11) are in a raised cylindrical structure, and the bottom surface of the joint protective seat (1) is provided with an anti-slip rib structure.