CN213744394U

CN213744394U - Corrosion-resistant fastener for petrochemical device

Info

Publication number: CN213744394U
Application number: CN202022660595.7U
Authority: CN
Inventors: 徐�明; 尹恺荣; 龚小科
Original assignee: Shenzhen Wanzhong Industrial Technology Co ltd
Current assignee: Shenzhen Wanzhong Industrial Technology Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-20
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a corrosion-resistant fastener for petrochemical industry device, including the shank of bolt, the surface of shank of bolt is provided with fixation nut, fixation nut's last fixed surface is connected with the protection body, the surface of shank of bolt is provided with the first fastening body that waits, the surface of shank of bolt and the top that is located the first fastening body that waits are provided with the second and wait the fastening body, the outer fixed surface of shank of bolt is connected with the isolation body, the upper surface of shank of bolt and the top fixedly connected with bolt head that is located the isolation body, the side fixedly connected with anticorrosion shell of bolt head. The utility model discloses in, set up corrosion protection housing, first anti-corrosion coating, second anti-corrosion coating, first movable block, second movable block, first spring, second spring, isolation, protection body, compact heap, reached protection bolt head, hexagonal groove, have good corrosion resistance, reduce the processing cost, convenient to use's purpose.

Description

Corrosion-resistant fastener for petrochemical device

Technical Field

The utility model relates to a fastener technical field especially relates to a corrosion resistant fastener for petrochemical industry device.

Background

The fastener is a mechanical part which is used for fastening and connecting and has wide application, has wide application industries including energy, electronics, electrical appliances, machinery, chemical engineering, metallurgy, molds, hydraulic pressure and the like, can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical engineering, instruments, supplies and the like, and is a mechanical basic part which has the most wide application. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.

The existing fastener is widely applied, some fasteners are applied to the field of petrochemical industry, the process has certain acid-base reagents, the corrosion is strong, the fastener is easily corroded, equipment is seriously damaged, frequent maintenance is needed, the processing cost is increased, the conventional fastener only has the fastening effect, the corrosion resistance is low, and the use is not convenient enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a corrosion-resistant fastener for a petrochemical device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the corrosion-resistant fastener for the petrochemical device comprises a bolt rod, wherein a fixing nut is arranged on the outer surface of the bolt rod, a protective body is fixedly connected to the upper surface of the fixing nut, a first body to be fastened is arranged on the outer surface of the bolt rod, a second body to be fastened is arranged on the outer surface of the bolt rod and above the first body to be fastened, and an insulating body is fixedly connected to the outer surface of the bolt rod;

the upper surface of the bolt rod is fixedly connected with a bolt head above the insulator, the side surface of the bolt head is fixedly connected with an anti-corrosion shell, the lower surface of the anti-corrosion shell is fixedly connected with a pressing block, the upper part of the bolt head is provided with a hexagonal groove, the upper part of the anti-corrosion shell is fixedly connected with a first anti-corrosion layer, the upper part of the anti-corrosion shell and the right side of the first anti-corrosion layer are fixedly connected with a second anti-corrosion layer, the upper surface of the bolt head is fixedly connected with a first chute, the upper surface of the bolt head and the right side of the first chute are fixedly connected with a second chute, a first spring is arranged in the first sliding chute, a second spring is arranged in the second sliding chute, the first sliding chute is arranged inside the first sliding chute and located on the right side of the first spring, and the second sliding chute is arranged inside the second sliding chute and located on the left side of the second spring.

As a further description of the above technical solution:

the protection body is located below the first body to be fastened, and the longitudinal section of the protection body is trapezoidal.

As a further description of the above technical solution:

the isolation body is positioned on the inner side of the pressing block, and the longitudinal section of the isolation body is trapezoidal.

As a further description of the above technical solution:

the cross section of the pressing block is circular and is positioned below the head of the bolt.

As a further description of the above technical solution:

the right side end of the first moving block is provided with an inclined surface, and the left side end of the second moving block is provided with an inclined surface.

As a further description of the above technical solution:

the first moving block and the second moving block are the same in length and are matched with each other.

As a further description of the above technical solution:

the first anti-corrosion layer is located above the first moving block, and the second anti-corrosion layer is located above the second moving block.

As a further description of the above technical solution:

the first anti-corrosion layer and the second anti-corrosion layer are located on the outer sides of the hexagonal grooves and are identical in shape and size.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the corrosion-resistant fastener for the petrochemical device is provided with the corrosion-resistant shell, the first corrosion-resistant layer and the second corrosion-resistant layer, the bolt head is directly protected, the outer surface is prevented from being corroded, and the service life of the fastener is prolonged.

2. Compared with the prior art, this a corrosion resistant fastener for petrochemical industry device has set up first movable block, second movable block, first spring, second spring, through the promotion of first spring, second spring, makes first movable block, second movable block be in the same place, gets up the protection of hexagonal groove, prevents that inside from being corroded, leads to the fastener to be unable to use, prolongs the life in hexagonal groove.

3. Compared with the prior art, this a corrosion resistant fastener for petrochemical apparatus has set up insulator, protection body, and the special shape of insulator, protection body seals the hole that the fastening body is treated to first, the second, prevents that inside is by oxidation, corruption, and it is more convenient to use.

4. Compared with the prior art, the corrosion-resistant fastener for the petrochemical device is provided with the pressing block, the lower surface of the bolt head can be isolated by the pressing block, the lower surface is prevented from being corroded, and the service life of the fastener is further prolonged.

Drawings

FIG. 1 is a schematic view of a corrosion resistant fastener for a petrochemical plant according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a top view of a corrosion resistant fastener for a petrochemical plant in accordance with the present invention;

fig. 5 is a perspective view of a fixing nut and a protective body of a corrosion resistant fastener for a petrochemical device according to the present invention.

Illustration of the drawings:

1. a bolt shank; 2. fixing a nut; 3. a protective body; 4. a first body to be fastened; 5. a second body to be fastened; 6. an anticorrosive casing; 7. a first anti-corrosion layer; 8. a first moving block; 9. a hexagonal groove; 10. a second moving block; 11. a second anti-corrosion layer; 12. a compression block; 13. a bolt head; 14. an insulator; 15. a first spring; 16. a first chute; 17. a second spring; 18. a second runner.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a corrosion-resistant fastener for a petrochemical device comprises a bolt rod 1, wherein a fixing nut 2 is arranged on the outer surface of the bolt rod 1, a protective body 3 is fixedly connected to the upper surface of the fixing nut 2, a first body to be fastened 4 is arranged on the outer surface of the bolt rod 1, a second body to be fastened 5 is arranged on the outer surface of the bolt rod 1 and above the first body to be fastened 4, an insulating body 14 is fixedly connected to the outer surface of the bolt rod 1, and holes in the first body to be fastened 4 and the second body to be fastened 5 are sealed by the special shapes of the insulating body 14 and the protective body 3, so that the inner part is prevented from being oxidized and corroded, and the corrosion-resistant fastener is more convenient to use;

the bolt head 13 is fixedly connected to the upper surface of the bolt rod 1 and positioned above the insulator 14, the corrosion-resistant housing 6 is fixedly connected to the side surface of the bolt head 13, the side surface of the bolt head 13 is directly protected to prevent the side surface from being corroded, the service life of the fastener is prolonged, the pressing block 12 is fixedly connected to the lower surface of the corrosion-resistant housing 6, the hexagonal groove 9 is arranged at the upper part of the bolt head 13, the first corrosion-resistant layer 7 is fixedly connected to the upper part of the corrosion-resistant housing 6, the second corrosion-resistant layer 11 is fixedly connected to the upper part of the corrosion-resistant housing 6 and positioned on the right side of the first corrosion-resistant layer 7, the first sliding groove 16 is fixedly connected to the upper surface of the bolt head 13, the second sliding groove 18 is fixedly connected to the upper surface of the bolt head 13 and positioned on the right side of the first sliding groove 16, the first spring 15 is arranged inside the first sliding groove 16, and the second spring 17 is arranged inside the second sliding groove 18, a first moving block 8 is slidably connected to the inside of the first slide groove 16 on the right side of the first spring 15, and a second moving block 10 is slidably connected to the inside of the second slide groove 18 on the left side of the second spring 17.

The protective body 3 is positioned below the first to-be-fastened body 4, the longitudinal section of the protective body is trapezoidal, the isolation body 14 is positioned on the inner side of the pressing block 12, the longitudinal section of the protective body is trapezoidal, the cross section of the pressing block 12 is circular and is positioned below the bolt head 13, the right side end of the first moving block 8 is provided with an inclined plane, the left side end of the second moving block 10 is provided with an inclined plane, the inclined plane ensures that when the protective body is installed and screwed down, the first moving block 8 and the second moving block 10 are pushed by a wrench to enable the first spring 15 and the second spring 17 to be compressed, the wrench can be conveniently placed in the hexagonal groove 9, the first moving block 8 and the second moving block 10 are the same in length and are matched with each other to protect the hexagonal groove 9, the first anti-corrosion layer 7 is positioned above the first moving block 8, the second anti-corrosion layer 11 is positioned above the second moving block 10 to protect the first sliding groove 16 and the second sliding groove 18, the first anti-corrosion layer 7 and the second anti-corrosion layer 11 are located outside the hexagonal groove 9 and have the same shape and size.

The working principle is as follows: the corrosion protection housing 6, the first anti-corrosion layer 7, the second anti-corrosion layer 11, directly protect bolt head 13, prevent that the surface from being corroded, the life of extension fastener, through the promotion of first spring 15, the second spring 17, make first movable block 8, the second movable block 10 is in the same place, protect hexagonal groove 9, prevent inside from being corroded, lead to the fastener can't use, the life of extension hexagonal groove 9, insulator 14, the special shape of protector 3 seals the hole that first wait to fasten body 4, the inside of second wait to fasten body 5, prevent inside oxidation, the corruption, it is more convenient to use, when installing and screwing up, through the promotion of spanner to first movable block 8, the second movable block 10, make first spring 15, the second spring 17 compressed, conveniently put the spanner into the inside of hexagonal groove 9.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A corrosion resistant fastener for petrochemical plants, comprising a bolt shank (1), characterized in that: the outer surface of the bolt rod (1) is provided with a fixing nut (2), the upper surface of the fixing nut (2) is fixedly connected with a protective body (3), the outer surface of the bolt rod (1) is provided with a first body to be fastened (4), the outer surface of the bolt rod (1) and above the first body to be fastened (4) are provided with a second body to be fastened (5), and the outer surface of the bolt rod (1) is fixedly connected with an isolation body (14);

the bolt comprises a bolt rod (1), a bolt head (13) fixedly connected with the upper surface of the bolt rod and located above an insulator (14), an anti-corrosion shell (6) fixedly connected with the side surface of the bolt head (13), a pressing block (12) fixedly connected with the lower surface of the anti-corrosion shell (6), a hexagonal groove (9) arranged on the upper portion of the bolt head (13), a first anti-corrosion layer (7) fixedly connected with the upper portion of the anti-corrosion shell (6), a second anti-corrosion layer (11) fixedly connected with the right side of the first anti-corrosion layer (7) and arranged on the upper portion of the anti-corrosion shell (6), a first sliding groove (16) fixedly connected with the upper surface of the bolt head (13), a second sliding groove (18) fixedly connected with the right side of the first sliding groove (16) and arranged on the upper surface of the bolt head (13), and a first spring (15) arranged inside the first sliding groove (16), a second spring (17) is arranged inside the second sliding groove (18), a first moving block (8) is connected inside the first sliding groove (16) and located on the right side of the first spring (15) in a sliding mode, and a second moving block (10) is connected inside the second sliding groove (18) and located on the left side of the second spring (17) in a sliding mode.

2. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the protection body (3) is positioned below the first body to be fastened (4), and the longitudinal section of the protection body is trapezoidal.

3. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the insulator (14) is positioned on the inner side of the pressing block (12), and the longitudinal section of the insulator is trapezoidal.

4. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the cross section of the pressing block (12) is circular and is located below the bolt head (13).

5. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the right side end of the first moving block (8) is provided with an inclined surface, and the left side end of the second moving block (10) is provided with an inclined surface.

6. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the first moving block (8) and the second moving block (10) are the same in length and are matched with each other.

7. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the first anti-corrosion layer (7) is positioned above the first moving block (8), and the second anti-corrosion layer (11) is positioned above the second moving block (10).

8. A corrosion resistant fastener for petrochemical plants according to claim 1, wherein: the first anti-corrosion layer (7) and the second anti-corrosion layer (11) are positioned on the outer side of the hexagonal groove (9) and are identical in shape and size.