Self-locking nut
By adopting the combined design of the interlocking structure of forward and reverse-rotating threads in the self-locking nut and the protective sleeve, the poor self-locking effect and rust problems are solved, and higher stability and lower maintenance costs are achieved. .
Patent Information
- Application Number
- CN202421115431.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing self-locking nuts have poor self-locking effect and lack anti-rust protection, which leads to the nuts being easily loosened and rusted during long-term use, increasing maintenance costs.
A self-locking nut including a base plate, a sealing ring, a forward lock nut, a reverse lock nut, a fixing hole, a fixing rod, a clamp and a protective sleeve are designed, and an interlocking structure of forward and reverse screw threads is used. Enhance the self-locking effect and achieve sealing and rust protection through the combination of sealing ring and sheath.
Improve the self-locking effect of the nut, avoid loosening problems, and reduce maintenance costs through anti-rust protection and extend service life.
Smart Images
Figure CN222277163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, in particular to a self-locking nut. Background Art
[0002] Nuts are parts that tightly connect mechanical equipment. Through the inner thread, nuts can be connected to bolts of the same specifications as an integrated structure. They and bolts are one of the most common fasteners. General nuts will loosen by themselves due to vibration, collision or other reasons during use. Various machines and components cannot do without fasteners in connection and assembly. If fasteners become loose during mechanical operation, it will cause damage to components or the entire equipment, disintegration, and even cause major mechanical accidents. To prevent this phenomenon, self-locking nuts with relatively strong and stable connection can be used to solve the problem. The main function is to prevent loosening and vibration.
[0003] The prior art has the following problems:
[0004] 1. The self-locking effect of the existing self-locking nuts is relatively general and not particularly ideal. This also causes the nuts to become loose as the use time increases, which indirectly reduces the practicality of the nuts and is inconvenient to promote;
[0005] 2. Existing self-locking nuts do not have anti-rust protection mechanisms, which also leads to the fact that during long-term use of the nuts, rainwater can easily enter the connection between the bolts and the nuts through the gap between them, causing both to rust, making subsequent use and maintenance inconvenient, indirectly increasing maintenance costs, and failing to meet use requirements. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model provides a self-locking nut, which solves the problems that the current self-locking effect is relatively general and not particularly ideal, and the nut does not have an anti-rust protection mechanism. This also leads to the problem that during long-term use of the nut, rainwater can easily enter the connection between the bolt and the nut through the gap between the bolt and the nut, causing both to rust, making subsequent use and maintenance inconvenient.
[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a self-locking nut, comprising a base plate, a sealing ring is arranged at the bottom of the base plate, a forward locking nut is arranged in the middle of the top of the base plate, a first fixing hole is opened on one side of the top of the forward locking nut, a fixing rod is arranged inside the first fixing hole, a reverse locking nut is arranged above the forward locking nut, a second fixing hole is opened on one side of the bottom of the reverse locking nut, a clamping block is arranged on one side of the top of the base plate, a protective sleeve is arranged on the outer surface of the reverse locking nut of the base plate, and a clamping groove is opened on one side of the bottom of the protective sleeve.
[0008] As a preferred technical solution of the utility model, the sealing ring is installed on the base plate by bonding.
[0009] As a preferred technical solution of the utility model, the forward locking nut and the reverse locking nut are respectively provided with forward-spinning threads and reverse-spinning threads inside.
[0010] As a preferred technical solution of the present utility model, the position of the first fixing hole and the position of the second fixing hole are arranged corresponding to each other.
[0011] As a preferred technical solution of the utility model, the size of the card block is matched with the size of the card slot.
[0012] As a preferred technical solution of the utility model, the size of the protective sleeve, the size of the forward locking nut and the size of the reverse locking nut are matched.
[0013] Compared with the prior art, the utility model provides a self-locking nut, which has the following beneficial effects:
[0014] 1. This self-locking nut has a forward-threaded and reverse-threaded interior respectively provided with a forward-threaded and reverse-threaded interior, so that during the assembly process, the forward-threaded nut is first connected to the bolt thread through the forward-threaded nut, and then connected to the bolt thread through the reverse-threaded nut, so that when the forward-threaded and reverse-threaded nut are in contact, an interlocking structure is formed between the two, and at the same time, the first fixing hole and the second fixing hole are engaged by a fixing rod, so as to further strengthen the firmness and stability of the combination between the forward-threaded and reverse-threaded nut, so that it is not easy to fall off or loosen. This design improves the self-locking effect of the nut, avoids the problem that the nut is easy to loosen as the use time increases due to the general and not particularly ideal self-locking effect of the nut itself, indirectly improves the practicality of the nut, and is easy to promote.
[0015] 2. After the assembly of the self-locking nut, the sealing ring is first set to improve the sealing between the nut and the contact surface, and then the protective sleeve is installed and fixed by fitting the card slot on the protective sleeve with the card block on the bottom plate, so that the positive locking nut and the reverse locking nut inside the protective sleeve can be sealed and protected by the protective sleeve to play an anti-rust protection role. This design avoids the problem that during the long-term use of the nut, rainwater can easily enter the connection between the bolt and the nut through the gap between the bolt and the nut, causing rust on both, which is inconvenient for subsequent use and maintenance, thereby indirectly reducing the maintenance cost and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2For this utility model Figure 1 A magnified view of the structure at center A;
[0018] Figure 3 For this utility model Figure 1 A magnified view of the structure at B in the middle;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective cover of the utility model.
[0020] In the figure: 1. base plate; 2. sealing ring; 3. forward locking nut; 4. first fixing hole; 5. fixing rod; 6. reverse locking nut; 7. second fixing hole; 8. clamping block; 9. protective cover; 10. clamping slot. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-4 In this embodiment: a self-locking nut comprises a base plate 1, a sealing ring 2 is arranged at the bottom of the base plate 1, a forward locking nut 3 is arranged in the middle of the top of the base plate 1, so as to facilitate the support and fixation of the forward locking nut 3 through the base plate 1, thereby improving the stability of the forward locking nut 3, a first fixing hole 4 is opened on one side of the top of the forward locking nut 3, a fixing rod 5 is arranged inside the first fixing hole 4, a reverse locking nut 6 is arranged above the forward locking nut 3, a second fixing hole 7 is opened on one side of the bottom of the reverse locking nut 6, a clamping block 8 is arranged on one side of the top of the base plate 1, a protective sleeve 9 is arranged on the outer surface of the reverse locking nut 6 of the base plate 1, and a clamping groove 10 is opened on one side of the bottom of the protective sleeve 9.
[0023] In this embodiment, the sealing ring 2 is installed on the base plate 1 by bonding, which is convenient for installing and fixing the sealing ring 2, improving the stability of the sealing ring 2, and at the same time, the sealing performance of the contact between the nut and the contact surface is improved by the setting of the sealing ring 2; the positive thread and the reverse thread are respectively arranged inside the positive locking nut 3 and the reverse locking nut 6, so that during the assembly process, the positive locking nut 3 is first connected to the bolt thread, and then connected to the bolt thread through the reverse locking nut 6, so that when the positive locking nut 3 and the reverse locking nut 6 are in contact, an interlocking structure is formed between the two, thereby improving the self-locking effect of the nut; the position of the first fixing hole 4 is opposite to that of the second fixing hole 7 The corresponding settings make it convenient to fit the first fixing hole 4 and the second fixing hole 7 through the fixing rod 5, further strengthening the firm stability of the combination between the forward locking nut 3 and the reverse locking nut 6, making it difficult to fall off or loosen; the size of the block 8 is adapted to the size of the slot 10, so that the protective sleeve 9 can be installed and fixed by fitting the slot 10 on the protective sleeve 9 with the block 8 on the base plate 1, thereby improving the stability of the protective sleeve 9; the size of the protective sleeve 9, the size of the forward locking nut 3 and the size of the reverse locking nut 6 are adapted, so that the forward locking nut 3 and the reverse locking nut 6 inside the protective sleeve 9 can be sealed and protected through the protective sleeve 9, thereby playing an anti-rust protection role.
[0024] The working principle and use process of the utility model are as follows: the forward locking nut 3 and the reverse locking nut 6 are respectively provided with forward-spinning threads and reverse-spinning threads, so that during the assembly process, the forward locking nut 3 is firstly connected to the bolt thread, and then the reverse locking nut 6 is connected to the bolt thread, so that when the forward locking nut 3 and the reverse locking nut 6 are in contact, an interlocking structure is formed between the two, and at the same time, the first fixing hole 4 on the forward locking nut 3 and the second fixing hole 7 on the reverse locking nut 6 are engaged by the fixing rod 5, so as to further strengthen the firmness and stability of the combination between the forward locking nut 3 and the reverse locking nut 6, so that it is not easy to fall off or loosen. This design improves the self-locking effect of the nut and avoids the problem that the self-locking effect of the nut itself is relatively general and not particularly ideal. , which causes the nut to become loose as the use time increases, indirectly improving the practicability of the nut and facilitating promotion. After the assembly is completed, the sealing ring 2 set at the bottom of the base plate 1 is first used to improve the sealing between the nut and the contact surface, and then the card groove 10 on the protective sleeve 9 is engaged with the card block 8 on the base plate 1 to install and fix the protective sleeve 9, so that the positive locking nut 3 and the reverse locking nut 6 inside it are sealed and protected by the protective sleeve 9 to play an anti-rust protection role. This design avoids the problem that during the long-term use of the nut, rainwater easily enters the connection between the bolt and the nut through the gap between the bolt and the nut, causing both to rust, which is inconvenient for subsequent use and maintenance, indirectly reducing the maintenance cost and meeting the use requirements.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A self-locking nut, comprising a base plate (1), characterized in that: A sealing ring (2) is arranged at the bottom of the base plate (1); a forward locking nut (3) is arranged in the middle of the top of the base plate (1); a first fixing hole (4) is provided on one side of the top of the forward locking nut (3); a fixing rod (5) is arranged inside the first fixing hole (4); a reverse locking nut (6) is arranged above the forward locking nut (3); a second fixing hole (7) is provided on one side of the bottom of the reverse locking nut (6); a clamping block (8) is arranged on one side of the top of the base plate (1); a protective sleeve (9) is arranged on the outer surface of the reverse locking nut (6) of the base plate (1); a clamping groove (10) is provided on one side of the bottom of the protective sleeve (9).
2. A self-locking nut according to claim 1, characterized in that: The sealing ring (2) is mounted on the base plate (1) by adhesive connection.
3. A self-locking nut according to claim 1, characterized in that: The forward locking nut (3) and the reverse locking nut (6) are respectively provided with forward-spinning threads and reverse-spinning threads inside.
4. A self-locking nut according to claim 1, characterized in that: The position of the first fixing hole (4) and the position of the second fixing hole (7) are arranged corresponding to each other.
5. The self-locking nut according to claim 1, characterized in that: The size of the card block (8) is matched with the size of the card slot (10).
6. A self-locking nut according to claim 1, characterized in that: The size of the protective sleeve (9), the size of the forward locking nut (3) and the size of the reverse locking nut (6) are matched.