CN213839207U

CN213839207U - Wear-resistant bolt

Info

Publication number: CN213839207U
Application number: CN202022656937.8U
Authority: CN
Inventors: 邵文斌
Original assignee: Changzhou Junyue Machinery Co ltd
Current assignee: Changzhou Junyue Machinery Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-30
Anticipated expiration: 2030-11-17

Abstract

The utility model belongs to the technical field of the fastening piece technique and specifically relates to a stand wear and tear bolt, including closing cap, bolt head, threaded rod and gasket, bolt head lower extreme middle part is provided with the threaded rod, threaded rod upper end and bolt head lower extreme middle part fixed connection, be provided with the gasket between threaded rod and the bolt head, threaded rod upper end and gasket inner wall sliding connection, bolt head upper end is provided with the closing cap, closing cap outer wall lower extreme is provided with the cardboard, both ends all are provided with the inserted bar about the bolt head, the inside plectane that is provided with of closing cap, inserted bar and plectane middle part fixed connection, the gasket lower extreme is provided with the dead lever, gasket lower extreme and dead lever upper end fixed connection. The utility model discloses the closing cap that sets up simultaneously can effectively reduce the wearing and tearing of bolt head and improve the life of bolt, and the dead lever that sets up moreover can also prevent that the gasket from taking place the skew when carrying out the bolt dismouting, and is very convenient and practical.

Description

Wear-resistant bolt

Technical Field

The utility model relates to a coupling fastener technical field specifically is a stand wear and tear bolt.

Background

The bolt is a mechanical part, is a cylindrical threaded fastener matched with a nut, and a fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with the nut to be used for fastening and connecting two parts with through holes.

The working environment of many bolts is complicated, and traditional bolts do not have certain protection mechanisms, so that the bolts are easily corroded by rainwater, and meanwhile, wrenches are used during installation and disassembly of the bolts, and the wrenches are often extruded and rubbed with the bolt heads to cause serious abrasion of the bolt heads, so that the service life of the bolts is shortened, and meanwhile, gaskets on the bolts are often easily deviated to drive the bolts to move, so that the connection of workpieces is not fastened enough, and therefore, the existing bolts need to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stand wear and tear bolt to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a stand wear and tear bolt, includes closing cap, bolt head, threaded rod and gasket, bolt head lower extreme middle part is provided with the threaded rod, threaded rod upper end and bolt head lower extreme middle part fixed connection, be provided with the gasket between threaded rod and the bolt head, threaded rod upper end and gasket inner wall sliding connection, bolt head upper end is provided with the closing cap, closing cap outer wall lower extreme is provided with the cardboard, both ends all are provided with the inserted bar about the bolt head, the inside plectane that is provided with of closing cap, inserted bar and plectane middle part fixed connection, the gasket lower extreme is provided with the dead lever, gasket lower extreme and dead lever upper end fixed connection.

Preferably, a sealing ring is arranged at the upper end of the gasket, and the outer wall of the lower end of the sealing cover is in sliding connection with the inner wall of the sealing ring.

Preferably, the lower end of the sealing cover is provided with a rubber ring, and the lower end of the rubber ring is fixedly connected with the inner wall of the upper end of the gasket.

Preferably, the number of the clamping plates is two, and the two clamping plates are symmetrically arranged at the left end and the right end below the sealing cover respectively.

Preferably, a micro spring is arranged inside the sealing cover, and the inserted rod sequentially penetrates through the micro spring and the circular plate to be in sliding connection with the inner wall of the head of the bolt.

Preferably, the number of the fixed rods is four, and the four fixed rods are uniformly distributed at the lower end of the gasket at an angle of ninety degrees.

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

1. the utility model discloses in, not only can shelter from dust and rainwater for the bolt head through the closing cap that sets up, prevent that the bolt from being corroded by the rainwater, the closing cap also can avoid the spanner direct and bolt head contact moreover, effectively reduces the wearing and tearing of bolt under the prerequisite that does not influence the normal dismouting of bolt, can obviously increase the life of bolt, the dismouting is simple very practical moreover.

2. The utility model discloses in, can fix gasket and workpiece surface through the dead lever that sets up, avoid the gasket to take place the normal work that the skew influences the bolt at bolt dismouting in-process, the rubber circle and the sealing washer that set up simultaneously can improve the leakproofness between gasket and the bolt head, prevent that steam and dirt from getting into to the inside corruption that causes of bolt, it is very convenient to make up moreover easily.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

fig. 3 is a structural diagram of a portion a in fig. 1 according to the present invention.

In the figure: 1-sealing cover, 2-bolt head, 3-threaded rod, 4-gasket, 5-sealing ring, 6-fixing rod, 7-inserted rod, 8-micro spring, 9-clamping plate, 10-rubber ring and 11-circular plate.

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.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a stand wear and tear bolt, including closing cap 1, bolt head 2, threaded rod 3 and gasket 4, 2 lower extreme middle parts of bolt head are provided with threaded

rod

3, 3 upper ends of threaded rod and 2 lower extreme middle part fixed connection of bolt head, be provided with gasket 4 between threaded rod 3 and the

bolt head

2, 3 upper ends of threaded rod and 4 inner wall sliding connection of gasket, 2 upper ends of bolt head are provided with closing

cap

1, 1 outer wall lower extreme of closing cap is provided with cardboard 9, both ends all are provided with inserted bar 7 about

bolt head

2, 1 inside plectane 11 that is provided with of closing cap, inserted bar 7 and 11 middle part fixed connection of plectane, 4 lower extremes of gasket are provided with

dead lever

6, 4 lower extremes of gasket and 6 upper end fixed connection of dead lever.

The upper end of a gasket 4 is provided with a sealing ring 5, the outer wall of the lower end of a sealing cover 1 is in sliding connection with the inner wall of the sealing ring 5, a gap between the sealing cover 1 and the gasket 4 is filled, the sealing performance is improved, the lower end of the sealing cover 1 is provided with a rubber ring 10, the lower end of the rubber ring 10 is fixedly connected with the inner wall of the upper end of the gasket 4, the gap between the sealing cover 1 and a bolt head 2 is filled, the sealing performance is improved, the number of clamping plates 9 is two, the two clamping plates 9 are symmetrically arranged at the left end and the right end below the sealing cover 1 respectively, the sealing cover 1 is convenient to disassemble and assemble, a micro spring 8 is arranged inside the sealing cover 1, an inserted rod 7 sequentially penetrates through the micro spring 8 and the circular plate 11 to be in sliding connection with the inner wall of the bolt head 2, a push rod inserted rod 7 fixes the sealing cover 1 and the bolt head 2, the number of the fixed rods 6 is four, and the four fixed rods 6 are uniformly distributed at the lower end of the gasket 4 at an angle of ninety degrees respectively, prevent the gasket 4 from shifting, and enhance the firmness of the gasket 4.

The working process is as follows: the sealing cover 1 can block external dust and rainwater to protect the internal bolt head 2 from erosion, when the bolt is disassembled and assembled, a wrench is in contact with the sealing cover 1, the wrench rotates the sealing cover 1 to drive the bolt head 2 to rotate, the bolt head 2 drives the threaded rod 3 to rotate, bolt assembly work is carried out, the bolt head 2 moves downwards to be close to the gasket 4 in the rotation process of the bolt head 2, the bolt head 2 is in contact with the gasket 4 and then continuously rotates to drive, the gasket 4 also has a rotation trend under the drive of the bolt head 2, at the moment, the gasket 4 is fixed by the fixing rod 6 to be incapable of moving, the bolt head 2 continuously moves downwards and extrudes the rubber ring 10, at the moment, the bolt head 2 and the gasket 4 are sufficiently fastened, the sealing ring 5 can fill up gaps between the bolt head 2 and the gasket 4, and further improve the sealing effect on the upper ends of the bolt head 2 and the threaded rod 3, when the sealing cover 1 is found to be worn seriously, the sealing cover 1 needs to be replaced, only the clamping plate 9 needs to be pulled at the same time, the clamping plate 9 drives the inserting rod 7 to move, the inserting rod 7 drives the circular plate 11 to move, the micro spring 8 is compressed in the moving process of the circular plate 11, when the inserting rod 7 leaves the slotted hole in the outer wall of the bolt head 2, the damaged sealing cover 1 can be taken down, a new sealing cover 1 is replaced, the inserting rod 7 is aligned to the slotted holes at the two ends of the bolt head 2, the circular plate 9 and the circular plate 11 are loosened to move reversely under the action of the micro spring 8, the circular plate 11 drives the inserting rod 7 to be inserted into the bolt head 2 again, and the sealing cover 1 is fixed.

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

Claims

1. A stand wear and tear bolt, includes closing cap (1), bolt head (2), threaded rod (3) and gasket (4), its characterized in that: bolt head (2) lower extreme middle part is provided with threaded rod (3), threaded rod (3) upper end and bolt head (2) lower extreme middle part fixed connection, be provided with between threaded rod (3) and bolt head (2) gasket (4), threaded rod (3) upper end and gasket (4) inner wall sliding connection, bolt head (2) upper end is provided with closing cap (1), closing cap (1) outer wall lower extreme is provided with cardboard (9), both ends all are provided with inserted bar (7) about bolt head (2), closing cap (1) inside is provided with plectane (11), inserted bar (7) and plectane (11) middle part fixed connection, gasket (4) lower extreme is provided with dead lever (6), gasket (4) lower extreme and dead lever (6) upper end fixed connection.

2. A wear resistant bolt according to claim 1 wherein: the gasket (4) upper end is provided with sealing washer (5), closing cap (1) lower extreme outer wall and the inner wall sliding connection of sealing washer (5).

3. A wear resistant bolt according to claim 1 wherein: the lower end of the sealing cover (1) is provided with a rubber ring (10), and the lower end of the rubber ring (10) is fixedly connected with the inner wall of the upper end of the gasket (4).

4. A wear resistant bolt according to claim 1 wherein: the number of the clamping plates (9) is two, and the two clamping plates (9) are symmetrically arranged at the left end and the right end of the lower portion of the sealing cover (1) respectively.

5. A wear resistant bolt according to claim 1 wherein: the sealing cover is characterized in that a miniature spring (8) is arranged inside the sealing cover (1), and the inserted rod (7) sequentially penetrates through the miniature spring (8) and the circular plate (11) to be in sliding connection with the inner wall of the bolt head (2).

6. A wear resistant bolt according to claim 1 wherein: the number of the fixing rods (6) is four, and the four fixing rods (6) are uniformly distributed at the lower end of the gasket (4) at an angle of ninety degrees.