Lock nut

Abstract

The utility model provides a locknut, which relates to the technical field of fasteners, and comprises a first locknut, one side of the first locknut is movably connected with a second locknut, linings are fixedly connected in the first locknut and the second locknut, one end of the first locknut far away from the linings is provided with a spring washer, and the other end of the first locknut far away from the linings is provided with a spring. The first locknut, the spring washer and the second locknut are movably connected in sequence. According to the utility model, on one hand, the inner side of the nut is provided with the special synthetic material with high-temperature resistance to replace a nylon bushing, so that the stability of the bushing in a high-temperature environment is effectively improved, the problems of softening and deformation caused by too high temperature are avoided, and the continuous and effective locking effect is ensured; and on the other hand, the spring washer is arranged to keep a stable locking effect, and looseness or abrasion caused by repeated use is reduced, so that the service life of the device is prolonged, and the reliability of the locking effect in long-term use is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to an anti-loosening nut. Background Technology

[0002] A common type of lock nut is the nylon lock nut (also known as a nylon self-locking nut). This type of nut features a nylon bushing on its internal thread. When the nut is tightened, the nylon bushing generates friction with the bolt, providing additional resistance and preventing the nut from loosening. Nylon lock nuts are widely used in environments with high vibration, such as in automobiles and machinery, effectively preventing loosening due to vibration or external forces during prolonged use. The advantages of nylon lock nuts include simple installation, low cost, and the ability to withstand a certain temperature range.

[0003] In existing devices, the nylon bushing may be affected by temperature during use. When the ambient temperature exceeds the temperature resistance range of nylon, the nylon bushing will soften or deform, resulting in a weakened or even failed locking effect. Therefore, to avoid this situation, this invention uses a special synthetic material with high temperature resistance to replace the nylon bushing. At the same time, existing devices are prone to wear and damage under long-term use, which leads to a decrease in locking effect. Therefore, this invention uses spring washers to avoid the problem of decreased locking effect due to repeated use.

[0004] Therefore, we propose a locking nut. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. During use, the nylon bushing may be affected by excessively high temperatures. When the ambient temperature exceeds the temperature resistance range of nylon, the bushing may soften or deform, leading to a weakening or even failure of the locking effect. To avoid this, this invention uses a special synthetic material with high-temperature resistance to replace the nylon bushing. Furthermore, considering that the device is prone to wear and damage during prolonged use, resulting in a decrease in locking effectiveness, this invention incorporates spring washers to prevent a decline in locking effectiveness due to repeated use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A locking nut includes a first locking nut, a second locking nut movably connected to one side of the first locking nut, a bushing fixedly connected inside the first and second locking nuts, and a spring washer provided at the end of the first locking nut away from the bushing. The first locking nut, the spring washer and the second locking nut are movably connected in sequence.

[0008] The first anti-loosening nut has threaded holes on both sides inside, and a threaded rod is connected to the threaded hole inside.

[0009] Preferably, the second lock nut has a threaded hole on the side near the first lock nut, and the threaded rod passes through the first lock nut and is threaded to one side of the second lock nut.

[0010] Preferably, a fixing seat is fixedly installed on both sides of the second anti-loosening nut, and a rotating shaft is rotatably connected inside the fixing seat.

[0011] Preferably, a throttle handle is coaxially fixedly connected to the outer periphery of the rotating shaft.

[0012] Preferably, the second anti-loosening nut has fastening holes on both sides, a fixing rod is fixedly installed in the fastening holes, and a telescopic rod is fixedly installed inside the fixing rod.

[0013] Preferably, a fastening plate is fixedly installed at the end of the telescopic rod away from the throttle, and the side of the fastening plate away from the telescopic rod is in close contact with the outer periphery of the first anti-loosening nut.

[0014] Preferably, the side of the telescopic rod away from the fastening plate matches the side of the throttle handle, and one end of the throttle handle near the telescopic rod is in the shape of an irregular disc.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, on the one hand, by replacing the nylon bushing with a special synthetic material with high-temperature resistance on the inner side of the nut, the stability of the bushing in high-temperature environments is effectively improved, avoiding softening and deformation caused by excessive temperature, and ensuring the continuous effectiveness of the locking effect; on the other hand, by setting a spring washer to maintain a stable locking effect, the loosening or wear caused by repeated use is reduced, thereby extending the service life of the device and ensuring the reliability of the locking effect in long-term use. Attached Figure Description

[0017] Figure 1 This utility model provides an overall structural diagram of an anti-loosening nut.

[0018] Figure 2 A cross-sectional view of the overall structure of an anti-loosening nut provided by this utility model;

[0019] Figure 3 A first anti-loosening nut exploded view provided by this utility model;

[0020] Figure 4 A split view of a second anti-loosening nut provided by this utility model;

[0021] Figure 5 This is a disassembled view of the overall structure of an anti-loosening nut provided by this utility model.

[0022] Legend: 1. First anti-loosening nut; 2. Second anti-loosening nut; 3. Threaded rod; 4. Bushing; 5. Spring washer; 6. Fixing seat; 7. Shaft; 8. Turning handle; 9. Fixing rod; 10. Telescopic rod; 11. Fastening plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example

[0028] like Figure 1-5As shown, this utility model provides a technical solution: an anti-loosening nut, including a first anti-loosening nut 1, a second anti-loosening nut 2 movably connected to one side of the first anti-loosening nut 1, a bushing 4 fixedly connected inside the first anti-loosening nut 1 and the second anti-loosening nut 2, and a spring washer 5 provided at the end of the first anti-loosening nut 1 away from the bushing 4. The first anti-loosening nut 1, the spring washer 5 and the second anti-loosening nut 2 are movably connected in sequence. The connection between the first anti-loosening nut 1 and the second anti-loosening nut 2 is achieved by a threaded rod 3, so that the two parts can be tightly connected, and the whole device presents a relatively stable connection state.

[0029] The first anti-loosening nut 1 has threaded holes on both sides inside, and a threaded rod 3 is threadedly connected inside the threaded hole to facilitate threaded connection with the threaded rod 3 and ensure the stability of the device. The second anti-loosening nut 2 has a threaded hole on the side close to the first anti-loosening nut 1. The threaded rod 3 passes through the first anti-loosening nut 1 and is threadedly connected to one side of the second anti-loosening nut 2, which plays a role in further locking and preventing loosening. Both ends of the threaded rod 3 must match the threaded holes so that the two anti-loosening nuts can be mutually tightened and generate an anti-loosening effect to ensure the firmness of the connection.

[0030] The second anti-loosening nut 2 has fixed seats 6 on both sides. The fixed seats 6 are rotatably connected to the shaft 7. The shaft 7 is coaxially fixed to the outer circumference of the handle 8. The second anti-loosening nut 2 has fastening holes on both sides. The fastening holes are fixedly installed with a fixed rod 9, which provides a good support platform for the telescopic rod 10. This ensures that when the handle 8 rotates, the push on the telescopic rod 10 can further drive the fastening plate 11. The fixed rod 9 is fixedly installed with the telescopic rod 10. The end of the telescopic rod 10 away from the handle 8 is fixedly installed with the fastening plate 11. The side of the fastening plate 11 away from the telescopic rod 10 is close to the outer circumference of the first anti-loosening nut 1, which further fixes the connection between the first anti-loosening nut 1 and the second anti-loosening nut 2. The side of the telescopic rod 10 away from the fastening plate 11 matches the side of the handle 8. One end of the handle 8 is shaped like an irregular disc near the telescopic rod 10.

[0031] The working process of this utility model:

[0032] Step 1: During use, when the lock nuts need to be installed into the structure, the first lock nut 1 and the second lock nut 2 will be tightly connected through the threaded hole and the threaded rod 3. The inner side of the first lock nut 1 and the second lock nut 2 is equipped with a bushing 4. The bushing 4 is made of high temperature resistant material, so as to ensure that it does not soften or deform under high temperature conditions. The spring washer 5 is located at the end of the first lock nut 1 away from the bushing, ensuring that the whole device presents a relatively stable connection state during initial assembly. At this time, the bushing 4 and the spring washer 5 play an important role in effectively preventing loosening caused by vibration or external force.

[0033] Step two: After the device has been in operation for a period of time, especially in high-temperature or frequent operation environments, the spring washer 5 continuously applies pressure to the first anti-loosening nut 1 to maintain the tightness and prevent loosening. In addition, the fixing seats 6 and the rotating shaft 7 on both sides of the second anti-loosening nut 2 can ensure the tight connection between the first anti-loosening nut 1 and the second anti-loosening nut 2, so that the entire anti-loosening nut device can withstand the wear caused by long-term use. At the same time, the extension and retraction of the telescopic rod 10 is controlled by rotating the handle 8, which in turn drives the fastening plate 11 to fix the first anti-loosening nut 1. The telescopic rod 10 and the fastening plate 11 ensure that the anti-loosening effect remains reliable under frequent use and the locking performance will not decrease with the increase of the number of uses, thereby improving the overall service life and reliability of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking nut, comprising a first locking nut (1), characterized in that: A second anti-loosening nut (2) is movably connected to one side of the first anti-loosening nut (1). A bushing (4) is fixedly connected inside the first anti-loosening nut (1) and the second anti-loosening nut (2). A spring washer (5) is provided at the end of the first anti-loosening nut (1) away from the bushing (4). The first anti-loosening nut (1), the spring washer (5) and the second anti-loosening nut (2) are movably connected in sequence. The first anti-loosening nut (1) has threaded holes on both sides inside, and the threaded holes are connected to a threaded rod (3).

2. The anti-loosening nut according to claim 1, characterized in that: The second anti-loosening nut (2) has a threaded hole on the side near the first anti-loosening nut (1), and the threaded rod (3) passes through the first anti-loosening nut (1) and is threaded to one side of the second anti-loosening nut (2).

3. The anti-loosening nut according to claim 1, characterized in that: The second anti-loosening nut (2) is fixedly installed on both sides with a fixing seat (6), and the fixing seat (6) is rotatably connected to a rotating shaft (7).

4. The anti-loosening nut according to claim 3, characterized in that: The outer circumference of the rotating shaft (7) is coaxially fixedly connected to the handle (8).

5. The anti-loosening nut according to claim 4, characterized in that: The second anti-loosening nut (2) has fastening holes on both sides, and a fixing rod (9) is fixedly installed in the fastening holes. A telescopic rod (10) is fixedly installed inside the fixing rod (9).

6. The anti-loosening nut according to claim 5, characterized in that: A fastening plate (11) is fixedly installed at the end of the telescopic rod (10) away from the throttle (8), and the fastening plate (11) is closely attached to the outer periphery of the first anti-loosening nut (1) on the side away from the telescopic rod (10).

7. The anti-loosening nut according to claim 6, characterized in that: The side of the telescopic rod (10) away from the fastening plate (11) is matched with the side of the throttle (8), and one end of the throttle (8) is in the shape of an irregular disc near the side of the telescopic rod (10).

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