Large-specification nylon locking nut
By inserting nylon washer and adding bumps into the annular boss of the nylon lock nut, forming a engaging structure, and combining the limiting mechanism, the problem that the nylon lock nut is not easily pressed and rotated when tightening, and a smoother tightening assembly process is achieved.
Patent Information
- Application Number
- CN202422127083.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When the existing nylon lock nut is tightened, the nylon ring in the annular boss is not easy to be pressed and its own surface is smooth, which makes it easy to spin, resulting in bolts not easily entering the inner hole of the nylon ring, increasing the difficulty of tightening and assembly.
A large-size nylon lock nut is designed, and a nylon washer is embedded in the annular boss, and several bumps are evenly distributed outside the nylon washer. The outer side of the bump is matched with the clamp slot to form a engaging structure. At the same time, a limiting mechanism is symmetrically arranged on the surface of the annular boss, including a screw, an ring frame, a curved plate and a guide rod, which is used to limit and guide the nylon washer.
The contact surface between the nylon washer and the annular boss is increased through the bump, the friction force is enhanced, and the possibility of the nylon washer rotational deviation is reduced; the limiting mechanism effectively limits the nylon washer, reducing the possibility of force removal, and simplifying the tightening process.
Smart Images
Figure CN222910507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nylon lock nuts, in particular to large-size nylon lock nuts. Background Art
[0002] A nylon lock nut is an effective torque type hexagonal lock nut, which relies on a nylon washer to play a locking role. The nylon lock nut is usually abbreviated as a nylon cap, and is mainly used in cooperation with threaded screws or bolts and other connectors. When the nylon lock nut is screwed with a bolt, the nylon washer will deform and fill the gaps between the two end connectors, thereby playing a locking role.
[0003] When the existing nylon lock nut is tightened, since the nylon ring in the annular boss is not easily pressed and its surface is smooth, it is easy to rotate, so the bolt cooperating with it is not easily inserted into the inner hole of the nylon ring, thus increasing the difficulty of tightening and assembling the nylon lock nut. In view of this, we propose a large-size nylon lock nut. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a large-size nylon lock nut to solve the technical problem that when the existing nylon lock nut is tightened, since the nylon ring in the annular boss is not easily pressed and its surface is smooth, it is easy to rotate, so the bolt cooperating with it is not easily inserted into the inner hole of the nylon ring, thus increasing the difficulty of tightening and assembling the nylon lock nut.
[0005] To achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a large-size nylon lock nut, including a large-size nut body, wherein a ring boss is fixedly connected to the surface of the large-size nut body, a locking structure is clamped inside the ring boss, and a group of limiting mechanisms are symmetrically arranged on the surface of the ring boss;
[0006] The locking structure includes a nylon washer, the nylon washer is attached to the inner side of the ring boss, a plurality of protrusions are evenly distributed outside the nylon washer, and clamping grooves are matched and attached to the outside of the protrusions.
[0007] Preferably, the nylon washer and the protrusions are integrally formed, and the nylon washer and the protrusions are made of the same material.
[0008] Preferably, the nylon washer and the clamping grooves form a clamping structure through the protrusions, and the clamping grooves and the ring boss are integrally formed.
[0009] Preferably, the limiting mechanism includes fixing blocks, a set of the fixing blocks are symmetrically fixed on the surface of the annular boss, a screw rod is screwed inside the fixing blocks, a set of ring frames are fixedly sleeved on the outer side of the smooth part of the screw rod, a turning handle is fixedly connected to the top of the screw rod, an activity frame is arranged between the set of ring frames, an arc-shaped plate is arranged on one side of the activity frame, and a set of guide rods are fixedly arranged at the bottom end of the arc-shaped plate.
[0010] Preferably, the activity frame is movably sleeved on the outer side of the smooth part of the screw rod, and the activity frame and the arc-shaped plate are integrally formed.
[0011] Preferably, a guide groove matching with the guide rod is arranged inside the annular boss, and the arc-shaped plate and the annular boss form a clamping structure through the guide rod.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The present utility model effectively increases the contact surface between the nylon washer and the annular boss through the convex blocks, thereby increasing the friction force between the nylon washer and the annular boss. At the same time, since the nylon washer and the clamping structure formed by the convex blocks and the clamping grooves can effectively limit the nylon washer circumferentially, the possibility of the nylon washer rotating and shifting can be reduced.
[0014] 2. In the present utility model, the arc-shaped plate is rotated above the annular boss, and at the same time, the turning handle is held to rotate the screw rod so that the whole screw rod moves downward, which is convenient for the guide rod to be clamped into the guide groove arranged inside the annular boss and matching with the guide rod. Then, the screw rod is continuously rotated until the arc-shaped plate fits with the top of the annular boss. At this time, the arc-shaped plate effectively limits some convex blocks, thereby reducing the possibility of the convex blocks and the nylon washer being forced out. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the disassembled structure of the locking structure of the present utility model;
[0017] Figure 3 is a schematic diagram of the disassembled structure of the limiting mechanism of the present utility model;
[0018] In the figure: 1. large-sized nut body; 2. annular boss; 3. locking structure; 4. limiting mechanism;
[0019] 301. nylon washer; 302. convex block; 303. clamping groove;
[0020] 401. fixing block; 402. screw rod; 403. ring frame; 404. turning handle; 405. activity frame; 406. arc-shaped plate; 407. guide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments:
[0022] Large-size nylon lock nuts, see Figures 1 to 3 , including a large-size nut body 1, a circular boss 2 is fixedly connected to the surface of the large-size nut body 1, a locking structure 3 is engaged inside the circular boss 2, and a set of limiting mechanisms 4 are symmetrically arranged on the surface of the circular boss 2;
[0023] The locking structure 3 includes a nylon washer 301, the nylon washer 301 fits against the inner side of the circular boss 2, and a number of protrusions 302 are evenly distributed outside the nylon washer 301. Among them, the nylon washer 301 and the protrusions 302 are integrally formed, the materials of the nylon washer 301 and the protrusions 302 are the same, and the outer side of the protrusion 302 is matched and fitted with a card slot 303. Further, the nylon washer 301 forms an engaging structure with the card slot 303 through the protrusions 302, and the card slot 303 and the circular boss 2 are integrally formed. The present utility model effectively increases the contact surface between the nylon washer 301 and the circular boss 2 through the protrusions 302, thereby increasing the friction between the nylon washer 301 and the circular boss 2. At the same time, since the engaging structure formed by the nylon washer 301 through the protrusions 302 and the card slot 303 can effectively perform circumferential limitation on the nylon washer 301, the possibility of rotation and offset of the nylon washer 301 can be reduced.
[0024] It should be noted that the limiting mechanism 4 includes a fixed block 401. A group of fixed blocks 401 are symmetrically fixed on the surface of the annular boss 2. A screw rod 402 is screwed inside the fixed block 401. A group of ring frames 403 are fixedly sleeved on the outer side of the smooth part of the screw rod 402. The top of the screw rod 402 is fixedly connected with a turning handle 404. An activity frame 405 is arranged between the group of ring frames 403. An arc-shaped plate 406 is arranged on one side of the activity frame 405. Among them, the activity frame 405 is movably sleeved on the outer side of the smooth part of the screw rod 402. The activity frame 405 and the arc-shaped plate 406 are integrally formed. A group of guide rods 407 are fixedly arranged at the bottom end of the arc-shaped plate 406. Further, a guide groove matching with the guide rod 407 is arranged inside the annular boss 2. The arc-shaped plate 406 and the annular boss 2 form a clamping structure through the guide rod 407. In the present utility model, the arc-shaped plate 406 is turned above the annular boss 2. At the same time, the turning handle 404 is held to rotate the screw rod 402 so that the whole screw rod 402 moves downward, facilitating the guide rod 407 to be inserted into the guide groove arranged inside the annular boss 2 and matching with the guide rod 407. Then, the screw rod 402 is continuously rotated until the arc-shaped plate 406 is in contact with the top of the annular boss 2. At this time, the arc-shaped plate 406 effectively limits part of the convex blocks 302, thereby reducing the possibility of the convex blocks 302 and the nylon washer 301 being forced out. When the nylon washer 301 needs to be replaced subsequently, the screw rod 402 is rotated upward, thereby driving the arc-shaped plate 406 to move upward. When the guide rod 407 moves out of the inside of the annular boss 2, the arc-shaped plate 406 is rotated so that it is no longer above the annular boss 2, facilitating the upward removal of the nylon washer 301.
[0025] Working principle: The contact surface between the nylon washer 301 and the annular boss 2 is increased through the convex block 302, thereby increasing the friction force between the nylon washer 301 and the annular boss 2. At the same time, since the nylon washer 301 can be circumferentially limited by the clamping structure formed by the convex block 302 and the clamping groove 303, the possibility of the nylon washer 301 rotating and shifting can be reduced. The arc-shaped plate 406 is turned above the annular boss 2. At the same time, the turning handle 404 is held to rotate the screw rod 402 so that the whole screw rod 402 moves downward, enabling the guide rod 407 to be inserted into the guide groove arranged inside the annular boss 2 and matching with the guide rod 407. Then, the screw rod 402 is continuously rotated until the arc-shaped plate 406 is in contact with the top of the annular boss 2. At this time, the arc-shaped plate 406 limits part of the convex blocks 302, thereby reducing the possibility of the convex blocks 302 and the nylon washer 301 being forced out. When the nylon washer 301 needs to be replaced subsequently, the screw rod 402 is rotated upward, thereby driving the arc-shaped plate 406 to move upward. When the guide rod 407 moves out of the inside of the annular boss 2, the arc-shaped plate 406 is rotated so that it is no longer above the annular boss 2, facilitating the upward removal of the nylon washer 301.
[0026] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.
Claims
1. A large-size nylon locking nut, comprising a large-size nut body (1), characterized in that: The surface of the large-size nut body (1) is fixedly connected with an annular boss (2), a locking structure (3) is engaged inside the annular boss (2), and a group of limiting mechanisms (4) are symmetrically arranged on the surface of the annular boss (2); The locking structure (3) comprises a nylon washer (301), the nylon washer (301) is fitted on the inner side of the annular boss (2), a plurality of protrusions (302) are evenly distributed on the outside of the nylon washer (301), and a slot (303) is matched and fitted on the outside of the protrusion (302).
2. The large-size nylon locking nut according to claim 1, characterized in that: The nylon washer (301) and the protrusion (302) are integrally formed, and the nylon washer (301) and the protrusion (302) are made of the same material.
3. The large-size nylon locking nut according to claim 1, characterized in that: The nylon gasket (301) forms a snap-fit structure through the protrusion (302) and the snap-fit groove (303), and the snap-fit groove (303) and the annular boss (2) are integrally formed.
4. The large-size nylon locking nut according to claim 1, characterized in that: The limiting mechanism (4) comprises a fixed block (401), a group of the fixed blocks (401) are symmetrically fixed on the surface of the annular boss (2), a screw rod (402) is screwed inside the fixed block (401), a group of ring frames (403) are fixedly sleeved on the outer side of the smooth part of the screw rod (402), a turning handle (404) is fixedly connected to the top of the screw rod (402), a movable frame (405) is arranged between the group of ring frames (403), an arc plate (406) is arranged on one side of the movable frame (405), and a group of guide rods (407) are fixedly arranged at the bottom end of the arc plate (406).
5. The large-size nylon locking nut according to claim 4, characterized in that: The movable frame (405) is movably sleeved on the outer side of the smooth portion of the screw rod (402), and the movable frame (405) and the arc-shaped plate (406) are integrally formed.
6. The large-size nylon locking nut according to claim 4, characterized in that: A guide groove matching the guide rod (407) is provided inside the annular boss (2), and the arc-shaped plate (406) forms a snap-fit structure with the annular boss (2) via the guide rod (407).