CN215487119U - Locking nut for petrochemical - Google Patents
Locking nut for petrochemical Download PDFInfo
- Publication number
- CN215487119U CN215487119U CN202121396236.3U CN202121396236U CN215487119U CN 215487119 U CN215487119 U CN 215487119U CN 202121396236 U CN202121396236 U CN 202121396236U CN 215487119 U CN215487119 U CN 215487119U
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- nut
- nut body
- locking
- rubber sleeve
- bolt
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Abstract
The utility model discloses a locking nut for petrochemical engineering, which comprises a nut body, wherein three through grooves are uniformly formed in the outer side of the nut body, axial bolt holes are formed in the upper end face of the nut body corresponding to the grooves, mounting grooves are formed in the upper end face of the bolt holes, fastening bolts are mounted in the bolt holes in a threaded mode, an anti-corrosion coating is coated on the outer surface of the nut body, a nitrile rubber sleeve is sleeved on the outer side wall of the nut body, and sealing convex strips are arranged on the inner side wall of the nitrile rubber sleeve corresponding to the grooves. The self-locking nut has the locking characteristic of double-nut connection, the slotted part is axially tensioned and deformed by fastening the bolt, three sections of internal threads formed by the slotted part are contracted inwards, and meanwhile, the locking thread part is deformed, so that the connection friction resistance is increased, and the self-locking purpose is achieved; the butyronitrile rubber sleeve is arranged to prevent the outer part of the nut from being corroded.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of fasteners, in particular to the technical field of lock nuts for petrochemical industry.
[ background of the utility model ]
The locking nut is widely applied to the industries of machinery and the like, and the working principle of the locking nut is that the self-locking is carried out by adopting the friction force between the nut and the bolt. When in the petrochemical industry, lock nut receives the corruption of oil gas easily and leads to the unable effective twisting in later stage, can't guarantee lock nut's reliability.
[ Utility model ] content
The utility model aims to solve the problems in the prior art and provides a locking nut for petrochemical industry, which can prevent the locking nut from being corroded by oil gas and has good locking performance.
In order to achieve the purpose, the utility model provides a locking nut for petrochemical engineering, which comprises a nut body, wherein the nut body is a hexagon nut, the nut body is provided with a threaded hole, three through grooves are uniformly formed in the outer side of the nut body, an axial bolt hole is formed in the position, corresponding to the grooves, of the upper end face of the nut body, an installation groove is formed in the upper end face of the bolt hole, a fastening bolt is installed in the bolt hole in a threaded mode, the installation groove is matched with the bolt head of the fastening bolt, an anti-corrosion coating is coated on the outer surface of the nut body, a nitrile rubber sleeve is sleeved on the outer side wall of the nut body, a sealing convex strip is arranged on the inner side wall of the nitrile rubber sleeve, corresponding to the grooves, and the shape of the sealing convex strip is matched with that of the grooves.
Preferably, the slots include bottom edges and notches, and the angle between the bottom edges of adjacent slots is sixty degrees.
Preferably, the mounting groove has a diameter larger than that of the bolt hole.
Preferably, the corrosion-resistant coating is an epoxy resin coating.
The utility model has the beneficial effects that: the self-locking nut has the locking characteristic of double-nut connection, the slotted part is axially tensioned and deformed by fastening the bolt, three sections of internal threads formed by the slotted part are contracted inwards, and meanwhile, the locking thread part is deformed, so that the connection friction resistance is increased, and the self-locking purpose is achieved; set up the nitrile rubber cover, prevent that the outside of nut from receiving the corruption, sealed with grooved notch through sealed sand grip moreover, prevent that oil gas from getting into inside, cause the corruption to the nut inside.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a locking nut for petrochemical industry according to the present invention;
fig. 2 is a schematic structural view of a nitrile rubber sleeve of the locking nut for petrochemical engineering.
In the figure: 1-nut body, 2-threaded hole, 3-slot, 4-bolt hole, 5-mounting groove, 6-fastening bolt, 7-corrosion-resistant coating, 8-nitrile rubber sleeve, 31-bottom edge, 32-slot and 81-sealing convex strip.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the locknut for petrochemical engineering comprises a nut body 1, wherein the nut body 1 is a hexagon nut, the nut body 1 is provided with a threaded hole 2, three through slots 3 are uniformly formed in the outer side of the nut body 1, an axial bolt hole 4 is formed in the upper end surface of the nut body 1 corresponding to the slots 3, an installation groove 5 is formed in the upper end surface of the bolt hole 4, a fastening bolt 6 is installed in the bolt hole 4 through a thread, the installation groove 5 is matched with the bolt head of the fastening bolt 6, a corrosion-resistant coating 7 is coated on the outer surface of the nut body 1, a nitrile rubber sleeve 8 is sleeved on the outer side wall of the nut body 1, a sealing convex strip 81 is arranged on the inner side wall of the nitrile rubber sleeve 8 corresponding to the slots 3, and the shape of the sealing convex strip 81 is matched with the shape of the slots 3, the slots 3 comprise bottom edges 31 and notches 32, the angle between the bottom edges 31 of the adjacent slots 3 is sixty degrees, the diameter of each mounting groove 5 is larger than that of each bolt hole 4, and the corrosion-resistant coating 7 is an epoxy resin coating.
The locking nut for petrochemical engineering has the locking characteristic of double-nut connection, and the axial tensioning and deformation of the slot 3 are realized through the fastening bolt 6, so that three sections of internal threads formed by the slot 3 contract inwards, and meanwhile, the locking thread part deforms, the connection friction resistance is increased, and the self-locking purpose is achieved; set up nitrile rubber sleeve 8, prevent that the outside of nut from receiving the corruption, sealed the notch 32 with fluting 3 through sealed sand grip 81 moreover, prevent that oil gas from getting into inside, cause the corruption to the nut is inside.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a lock nut for petrochemical which characterized in that: the nut comprises a nut body (1), wherein the nut body (1) is a hexagon nut, a threaded hole (2) is formed in the nut body (1), three through slots (3) are uniformly formed in the outer side of the nut body (1), an upper end face of the nut body (1) corresponds to the position of each slot (3) and is provided with an axial bolt hole (4), an upper end face of each bolt hole (4) is provided with a mounting groove (5), a fastening bolt (6) is installed in each bolt hole (4) through internal threads, the mounting groove (5) is matched with a bolt head of the fastening bolt (6), an anti-corrosion coating (7) is coated on the outer surface of the nut body (1), a nitrile rubber sleeve (8) is sleeved on the outer side wall of the nut body (1), the inner side wall of the nitrile rubber sleeve (8) corresponds to the slots (3) and is provided with a sealing convex strip (81), the shape of the sealing convex strip (81) is matched with that of the slot (3).
2. The lock nut for petrochemical engineering according to claim 1, wherein: the slots (3) comprise bottom edges (31) and notches (32), and the angle between the bottom edges (31) of the adjacent slots (3) is sixty degrees.
3. The lock nut for petrochemical engineering according to claim 1, wherein: the diameter of the mounting groove (5) is larger than that of the bolt hole (4).
4. The lock nut for petrochemical engineering according to claim 1, wherein: the corrosion-resistant coating (7) is an epoxy resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396236.3U CN215487119U (en) | 2021-06-23 | 2021-06-23 | Locking nut for petrochemical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396236.3U CN215487119U (en) | 2021-06-23 | 2021-06-23 | Locking nut for petrochemical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487119U true CN215487119U (en) | 2022-01-11 |
Family
ID=79720975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121396236.3U Active CN215487119U (en) | 2021-06-23 | 2021-06-23 | Locking nut for petrochemical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487119U (en) |
-
2021
- 2021-06-23 CN CN202121396236.3U patent/CN215487119U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |