CN210830109U

CN210830109U - Wear-resisting type bolt

Info

Publication number: CN210830109U
Application number: CN201921895677.0U
Authority: CN
Inventors: 单银荣
Original assignee: Hangzhou Haohe Bolts Co ltd
Current assignee: Hangzhou Haohe Bolts Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-23
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a fastener technical field, in particular to wear-resisting type bolt, the utility model discloses a bolt body, bolt body includes screw rod and nut, still locates including the cover gasket on the screw rod, the nut is close to the surface of screw rod and is provided with the graphite layer, the gasket is close to the first guiding groove of a plurality of has been seted up on the surface of nut, first guiding groove runs through the gasket is close to the surface of screw rod axis is through above-mentioned setting to the condition of screw thread necrosis appears in the reduction bolt.

Description

Wear-resisting type bolt

Technical Field

The utility model relates to a fastener technical field, in particular to wear-resisting type bolt.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application; various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical engineering, instruments, supplies and the like, and are the most widely applied machine basic parts.

The bolt is a cylindrical threaded fastener with a nut. A fastener consisting of a nut and a screw (a cylinder with external threads) needs to be matched with the nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

Traditional bolt is at the in-process of installation or dismantlement because the bolt body does not possess lubricated effect, can cause the necrosis of screw thread on the bolt body because the bolt body is fixed the back for a long time to life has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wear-resisting type bolt to reduce the condition that the screw thread necrosis appears in the bolt.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a wear-resisting type bolt, includes the bolt body, the bolt body includes screw rod and nut, still locates including the cover gasket on the screw rod, the nut is close to the surface of screw rod and is provided with the graphite layer, the gasket is close to the first guiding groove of a plurality of has been seted up on the surface of nut, first guiding groove runs through the gasket is close to the surface of screw rod axis.

Through the technical scheme, through setting up mutually supporting between the first guiding groove of graphite layer and a plurality of, use the bolt body as the staff, and through pegging graft the screw rod on being fixed the object, set up in the graphite layer contact gasket on the surface of nut towards the screw rod, when the staff fixes through rotating the nut, can take place relative rotation or friction between nut and the gasket, because graphite is softer, thereby the edge that makes the first guiding groove of a plurality of scrapes the graphite layer, form the graphite powder and fall into in the first guiding groove, and fall into in being fixed the fixed orifices of object and falling on the screw rod surface through the gap between screw rod and the gasket, play lubricated effect to the screw thread on screw rod surface, thereby be difficult for making the condition that takes place necrosis between screw thread and the object of being fixed, the life of bolt body has been increased.

The utility model discloses further set up to: the depth of the first guide groove is gradually deepened towards the center direction of the gasket.

Through above-mentioned technical scheme, through setting up the slope of first guide slot bottom surface to make graphite powder drop and enter into first guide slot back, make graphite powder move towards gasket center easily.

The utility model discloses further set up to: the gasket is close to the surface of screw rod axis has seted up a plurality of second guiding groove, a plurality of second guiding groove one-to-one and communicate in first guiding groove.

Through above-mentioned technical scheme, through setting up a plurality of and the communicating a plurality of second guiding groove of first guiding groove, make first guiding groove scrape graphite back down, drop on the surface of screw rod through the second guiding groove more easily.

The utility model discloses further set up to: and the surface of the screw cap, which is far away from the screw rod, is provided with a hexagonal groove.

Through above-mentioned technical scheme, through seting up the hexagonal groove on the nut, make the staff rotate the bolt body through the instrument of difference, increased the practicality of bolt body.

The utility model discloses further set up to: and a chamfer is arranged at the top end of the side wall of the hexagonal groove.

Through above-mentioned technical scheme, through set up the chamfer on the hexagonal groove, make the staff when rotating the bolt body through the hexagonal groove, the instrument that uses aligns more easily and inserts in the hexagonal groove.

The utility model discloses further set up to: the bottom surface of the gasket is provided with a plurality of convex ribs.

Through above-mentioned technical scheme, through set up a plurality of bead at the gasket bottom surface, the bolt body is after long-time fixing, is difficult for leading to the gasket and being taken place relative rotation between the object because of rocking etc. multiple factor to take place not hard up the condition.

The utility model discloses further set up to: the ribs are uniformly arranged around the circumference of the gasket.

Through the technical scheme, the protruding edges are uniformly arranged around the circumferential direction of the gasket, so that the acting force of the gasket on the fixed object is more uniform, and the fixed object is not easy to damage.

The utility model discloses further set up to: and the surface of the screw is coated with an anti-corrosion layer.

Through the technical scheme, the anti-corrosion layer is coated on the surface of the screw rod, so that the bolt body is not easy to corrode and the thread is not easy to be necrotic, and the service life of the bolt body is further prolonged.

To sum up, the utility model discloses following beneficial effect has:

1. through setting up and mutually supporting between graphite layer and the first guiding groove of a plurality of, play lubricated effect to the screw thread on screw surface to difficult messenger's screw thread and the condition of taking place the necrosis between the object of being fixed have increased the life of bolt body.

2. The bolt body is not easy to loosen by arranging the convex edges on the bottom surface of the gasket.

3. The anti-corrosion layer is coated on the surface of the screw rod, so that the bolt body is not easy to corrode to cause thread necrosis, and the service life of the bolt body is further prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic structural diagram of the gasket in this embodiment.

Reference numerals: 1. a bolt body; 2. a screw; 3. a nut; 4. a gasket; 5. a graphite layer; 6. a first guide groove; 7. a second guide groove; 8. a hexagonal groove; 9. chamfering; 10. and (7) a rib.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a wear-resisting type bolt, as shown in fig. 1 and fig. 2, including bolt body 1, bolt body 1 includes screw rod 2 and nut 3, screw rod 2 and nut 3 are integrated into one piece, and be provided with the screw thread on the screw rod 2, still locate gasket 4 on the screw rod 2 including the cover, the surface that nut 3 is close to the screw rod is provided with graphite layer 5, graphite layer 5 bonds in nut 3 through the binder, a plurality of first guiding groove 6 has been seted up on the surface that gasket 4 is close to nut 3, first guiding groove 6 runs through the surface that gasket 4 is close to screw rod 2 axis, and the degree of depth of first guiding groove 6 deepens gradually towards gasket 4 central direction, a plurality of second guiding groove 7 has been seted up on the surface that gasket 4 is close to screw rod 2 axis, a plurality of second guiding groove 7 one-to.

When the staff uses bolt body 1, and through pegging graft screw rod 2 when being fixed on the object, set up in nut 3 towards 5 contact pad 4 on the graphite layer on screw rod 2's surface, when the staff fixes through swivel nut, relative rotation or friction can take place between nut 3 and the gasket 4, because graphite is softer, thereby make the edge of the first guiding groove 6 of a plurality of scrape graphite layer 5, it falls into first guiding groove 6 to form the graphite powder, fall into in the fixed orifices by fixed object through first guiding groove 6 and second guiding groove 7, and fall on screw rod 2 surface, thereby can play lubricated effect to the screw thread on screw rod 2 surface, thereby difficult messenger's screw thread and by taking place the necrotic condition between the object, bolt body 1's life has been increased.

In order to further increase the corrosion resistance of the bolt body 1, the surface of the screw rod 2 is coated with an anti-corrosion layer, and the anti-corrosion layer is a powder zinc-infiltrated anti-corrosion coating, so that the service life of the bolt body 1 is further prolonged.

In order to increase the practicability of the bolt body 1, the hexagonal groove 8 is formed in the surface, away from the screw rod 2, of the nut 3, the top end of the side wall of the hexagonal groove 8 is provided with the chamfer 9, so that an operator can rotate the bolt body 1 through different tools, and the practicability of the bolt body 1 is increased.

For reducing the not hard up condition of bolt body 1 appearance, 4 bottom surfaces of gasket are provided with a plurality of bead 10, and a plurality of bead 10 evenly sets up around 4 circumference of gasket to increase the frictional force between gasket 4 and this fixed article, make bolt body 1 difficult because of rocking etc. multiple factor lead to between gasket 4 and the object being fixed relative rotation, thereby take place not hard up condition.

The working principle is as follows:

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a wear-resisting type bolt, includes bolt body (1), bolt body (1) includes screw rod (2) and nut (3), its characterized in that: still locate including the cover gasket (4) on screw rod (2), nut (3) are close to the surface of screw rod (2) and are provided with graphite layer (5), gasket (4) are close to the first guiding groove (6) of a plurality of have been seted up on the surface of nut (3), first guiding groove (6) run through gasket (4) are close to the surface of screw rod (2) axis.

2. A wear resistant bolt as defined in claim 1 wherein: the depth of the first guide groove (6) is gradually deepened towards the center direction of the gasket (4).

3. A wear resistant bolt as defined in claim 1 wherein: the surface of the gasket (4) close to the axis of the screw rod (2) is provided with a plurality of second guide grooves (7), and the plurality of second guide grooves (7) correspond to the first guide grooves (6) in a one-to-one mode and are communicated with the first guide grooves (6).

4. A wear resistant bolt as defined in claim 1 wherein: and a hexagonal groove (8) is formed in the surface, far away from the screw rod (2), of the screw cap (3).

5. A wear resistant bolt according to claim 4 wherein: and a chamfer (9) is arranged at the top end of the side wall of the hexagonal groove (8).

6. A wear resistant bolt as defined in claim 1 wherein: the bottom surface of the gasket (4) is provided with a plurality of convex ribs (10).

7. A wear resistant bolt as defined in claim 6 wherein: the plurality of convex ribs (10) are uniformly arranged around the circumferential direction of the gasket (4).

8. A wear resistant bolt as defined in claim 1 wherein: the surface of the screw rod (2) is coated with an anti-corrosion layer.