CN215890750U

CN215890750U - High-temperature-resistant self-locking nut

Info

Publication number: CN215890750U
Application number: CN202122307580.7U
Authority: CN
Inventors: 黄小妹; 汤宗静; 江映红
Original assignee: Hangzhou Lianda Hardware Machinery Co ltd
Current assignee: Hangzhou Lianyi Machinery Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-22
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a high-temperature-resistant self-locking nut which comprises a bolt, a main nut, an auxiliary nut and two rubber sealing rings, wherein a pressing plate is fixedly arranged at one end of the bolt, threads are arranged on the outer surface of the bolt, thread grooves are formed in the main nut and the auxiliary nut, self-locking threads are arranged on the surfaces of the thread grooves, the main nut and the auxiliary nut are sleeved on the outer surface of the bolt through the threads, and the main nut is sleeved on one side close to the pressing plate. Has the advantages that: for an object needing to be fastened, the bolt penetrates out of the object firstly until the pressing plate is just propped against the object, one of the rubber sealing rings, the main nut, the other rubber sealing ring and the auxiliary nut are sequentially arranged at the other end of the bolt, the contact area can be increased, the pressure can be reduced, the loosening can be prevented, the object can be protected from being damaged through the arranged rubber sealing ring, and the object can be very effectively fastened through the self-locking thread arranged on the main nut.

Description

High-temperature-resistant self-locking nut

Technical Field

The utility model relates to the field of nuts, in particular to a high-temperature-resistant self-locking nut.

Background

The nut is a very common fastening part in the machinery trade, can play certain fastening effect, but can produce very powerful vibration when large-scale machinery carries out the work, makes bolt and nut all take place to rock, leads to the fastening effect not particularly ideal to machinery long-time work can produce a large amount of heats and make the temperature rise, can influence the fastening effect of nut equally, can not satisfy user's normal use demand.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-temperature-resistant self-locking nut to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a high temperature resistant self-locking nut, is two rubber seal including bolt, main nut, vice nut and quantity, the fixed clamp plate that is equipped with of bolt one end, the bolt surface is equipped with the screw thread, main nut with all set up the thread groove on the vice nut, and the thread groove surface is equipped with self-locking screw thread, main nut with the equal thread cover of vice nut is established the bolt surface, main nut overlaps to be established and is close to one side of clamp plate, two rubber seal has all seted up the through-hole, one of them rubber seal overlaps to be established main nut with between the clamp plate on the bolt surface, another rubber seal overlaps to be established main nut with between the vice nut on the bolt surface, the bolt other end is equipped with dustproof mechanism.

Furthermore, the main nut and the auxiliary nut are both hexagon nuts, the main nut and the auxiliary nut are the same in size, corners of the main nut and the auxiliary nut are both in arc transition, and the bolt, the pressing plate, the main nut and the auxiliary nut are all made of 35 CrMo.

Furthermore, the shape of the rubber sealing ring is circular, the rubber sealing ring is slightly smaller than the main nut and the auxiliary nut, and the rubber sealing ring is made of ACM acrylate.

Furthermore, an organic flame-retardant layer is uniformly coated on the outer surface of the rubber sealing ring, and an inorganic flame-retardant layer is uniformly coated outside the organic flame-retardant layer.

Furthermore, two grooves are formed in the outer surfaces of the two sides of the main nut and the outer surfaces of the two sides of the auxiliary nut, and handles are inserted into the grooves.

Furthermore, the dustproof mechanism is a dustproof cap, the dustproof cap is movably sleeved at the other end of the bolt through a bolt groove formed in the top end of the dustproof cap, a sealing ring is fixedly arranged at one end, close to the pressing plate, of the dustproof cap, the other end of the dustproof cap is of an arc-shaped structure, and the dustproof cap is made of fluorosilicone.

Compared with the prior art, the utility model has the following beneficial effects: to the object that needs the fastening, at first wear out this object with the bolt, just in time support this object by the clamp plate, install one of them rubber seal in proper order at the other end of bolt, main nut, another rubber seal and vice nut, rubber seal through setting up can increase area of contact, reduce pressure, prevent not hard up and protect the object not to be harmed, and can carry out very effectual fastening to the object through the auto-lock screw thread that main nut set up, it is difficult to take place to become hard up, vice nut has then played certain fastening to main nut, make holistic fastening effect better, the exposed part that clamp plate one end was kept away from to the bolt carries out certain dustproof effect through dustproof mechanism, notice, rubber seal also can play certain dustproof effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a front view of a high temperature resistant self-locking nut according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a main nut and an auxiliary nut of a high temperature resistant self-locking nut according to an embodiment of the utility model;

FIG. 3 is a schematic view of a rubber seal of a high temperature resistant self-locking nut according to an embodiment of the utility model;

fig. 4 is a schematic structural view of a dust cap of a high-temperature-resistant self-locking nut according to an embodiment of the utility model.

Reference numerals:

1. a bolt; 2. a main nut; 3. a secondary nut; 4. a rubber seal ring; 5. pressing a plate; 6. self-locking threads; 7. an organic flame retardant layer; 8. an inorganic flame retardant layer; 9. a groove; 10. a handle; 11. a dust cap; 12. a bolt slot; 13. and (5) sealing rings.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

in order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

The first embodiment is as follows:

referring to fig. 1-4, the high temperature resistant self-locking nut according to the embodiment of the present invention includes a bolt 1, a main nut 2, an auxiliary nut 3, and two rubber seal rings 4, wherein a pressing plate 5 is fixed at one end of the bolt 1, a thread is provided on an outer surface of the bolt 1, thread grooves are provided on the main nut 2 and the auxiliary nut 3, a self-locking thread 6 is provided on a surface of the thread groove, the main nut 2 and the auxiliary nut 3 are both threadedly sleeved on an outer surface of the bolt 1, the main nut 2 is sleeved on a side close to the pressing plate 5, both the two rubber seal rings 4 are provided with through holes, one of the rubber seal rings 4 is sleeved on the outer surface of the bolt 1 between the main nut 2 and the pressing plate 5, the other rubber seal ring 4 is sleeved on the outer surface of the bolt 1 between the main nut 2 and the auxiliary nut 3, and a dustproof mechanism is arranged at the other end of the bolt 1.

Example two:

referring to fig. 1 and 2, the main nut 2 and the auxiliary nut 3 are both hexagon nuts, the main nut 2 and the auxiliary nut 3 have the same size, corners of the main nut 2 and the auxiliary nut 3 are both arc-shaped transitions, and the bolt 1, the pressing plate 5, the main nut 2, and the auxiliary nut 3 are all made of 35 CrMo.

Through the scheme of the utility model, the beneficial effects are as follows: set into the circular arc transition through the corner with main nut 2 and vice nut 3 and can avoid producing the fish tail because nut corner cut department is sharp, improved the security, use 35CrMo material then improved the high temperature resistance of product greatly to this material has very high static strength, impact toughness and higher fatigue limit, also has very high creep strength and permanent strength under high temperature environment.

Example three:

referring to fig. 1 and 3, the rubber seal ring 4 is circular, the rubber seal ring 4 is slightly smaller than the main nut 2 and the auxiliary nut 3, the rubber seal ring 4 is made of ACM acrylate, an organic flame retardant layer 7 is uniformly coated on the outer surface of the rubber seal ring 4, and an inorganic flame retardant layer 8 is uniformly coated on the outer surface of the organic flame retardant layer 7.

Through the scheme of the utility model, the beneficial effects are as follows: the rubber seal ring 4 is made of ACM acrylate materials, so that the rubber seal ring has higher heat resistance, aging resistance, oil resistance, ultraviolet resistance and other functions, and the safety performance of the rubber seal ring 4 is greatly enhanced by the coated organic flame-retardant layer 7 and the coated inorganic flame-retardant layer 8.

Example four:

referring to fig. 2, two grooves 9 are formed on the outer surfaces of the two sides of the main nut 2 and the auxiliary nut 3, and handles 10 are inserted into the grooves 9.

Through the scheme of the utility model, the beneficial effects are as follows: when manual installation, with its handle one end chucking formula insert groove 9 in, can let the user more convenient, laborsaving when screwing up the nut or unscrewing the nut through handle 10 that is equipped with on main nut 2 and vice nut 3, notice that handle 10 is detachable design to have different length, can lift handle 10 off the installation that is used for next set of nut after having installed the nut.

Example five:

referring to fig. 4, the dust-proof mechanism is a dust-proof cap 11, the dust-proof cap 11 is movably sleeved at the other end of the bolt 1 through a bolt slot 12 formed at the top end, a sealing ring 13 is fixedly arranged at one end of the dust-proof cap 11 close to the pressure plate 5, the other end of the dust-proof cap 11 is of an arc-shaped structure, and the dust-proof cap 11 is made of fluorosilicone.

Through the scheme of the utility model, the beneficial effects are as follows: can very effectually avoid in the more operational environment of dust through the design of dust cap 11, in the dust gets into the joint gap of vice nut 3 and bolt 1, cause the fastening to descend, the dust cap 11 other end is established to arc mainly is in order to prevent bolt 1 scratch user, improves the security performance, and it is noted that dust cap 11 has multiple length, and the suitability is very strong.

For the convenience of understanding the above technical solutions of the present invention, the following detailed description is made of the working principle or the operation mode of the present invention in the practical process:

in practical application, for an object to be fastened, the bolt 1 is firstly pushed out of the object until the pressing plate 5 is right against the object, one of the rubber sealing rings 4, the main nut 2, the other rubber sealing ring 4 and the auxiliary nut 3 are sequentially arranged at the other end of the bolt 1, the rubber sealing ring 4 can increase the contact area, reduce the pressure, prevent the loosening and protect the object from being damaged, and can carry out very effectual fastening to the object through the auto-lock screw thread 6 that main nut 2 set up, be difficult to take place not hard up, vice nut 3 has then played certain fastening to main nut 2, makes holistic fastening effect better good, and bolt 1 keeps away from the exposure part of 5 one ends of clamp plate and carries out certain dustproof through dustproof mechanism, and it is noted that rubber seal 4 also can play certain dustproof effect.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The high-temperature-resistant self-locking nut is characterized by comprising a bolt (1), a main nut (2), an auxiliary nut (3) and two rubber sealing rings (4), wherein a pressing plate (5) is fixedly arranged at one end of the bolt (1), threads are arranged on the outer surface of the bolt (1), thread grooves are formed in the main nut (2) and the auxiliary nut (3), self-locking threads (6) are arranged on the surfaces of the thread grooves, the main nut (2) and the auxiliary nut (3) are sleeved on the outer surface of the bolt (1) in a threaded manner, the main nut (2) is sleeved on one side close to the pressing plate (5), through holes are formed in the two rubber sealing rings (4), one of the rubber sealing rings (4) is sleeved on the outer surface of the bolt (1) between the main nut (2) and the pressing plate (5), and the other rubber sealing ring (4) is sleeved on the outer surface of the bolt (1) between the main nut (2) and the auxiliary nut (3), and the other end of the bolt (1) is provided with a dustproof mechanism.

2. The high-temperature-resistant self-locking nut as claimed in claim 1, wherein the main nut (2) and the auxiliary nut (3) are both hexagonal nuts, the main nut (2) and the auxiliary nut (3) are the same in size, corners of the main nut (2) and the auxiliary nut (3) are both arc-shaped transitions, and the bolt (1), the pressing plate (5), the main nut (2) and the auxiliary nut (3) are all made of 35 CrMo.

3. The high-temperature-resistant self-locking nut as claimed in claim 1, wherein the rubber sealing ring (4) is circular, the rubber sealing ring (4) is slightly smaller than the main nut (2) and the auxiliary nut (3), and the rubber sealing ring (4) is made of ACM acrylate.

4. The high-temperature-resistant self-locking nut as claimed in claim 1, wherein an organic flame-retardant layer (7) is uniformly coated on the outer surface of the rubber sealing ring (4), and an inorganic flame-retardant layer (8) is uniformly coated on the outer surface of the organic flame-retardant layer (7).

5. The high-temperature-resistant self-locking nut as claimed in claim 1, wherein the main nut (2) and the auxiliary nut (3) are provided with two grooves (9) on the outer surfaces of both sides, and a handle (10) is inserted into each groove (9).

6. The high-temperature-resistant self-locking nut according to claim 1, wherein the dust-proof mechanism is a dust-proof cap (11), the dust-proof cap (11) is movably sleeved on the other end of the bolt (1) through a bolt groove (12) formed in the top end of the dust-proof cap, a sealing ring (13) is fixedly arranged at one end, close to the pressing plate (5), of the dust-proof cap (11), the other end of the dust-proof cap (11) is of an arc-shaped structure, and the dust-proof cap (11) is made of fluorosilicone.