Self-locking anti-loosening screw and nut assembly
By using the reinforcement and adjustment mechanism of the self-locking anti-loosening screw and nut assembly, and by utilizing the snap-fit between the insert and the slot, the loosening problem caused by vibration or external impact of the screw and nut is solved, achieving a more stable connection effect.
Patent Information
- Application Number
- CN202423128976.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing screw and nut connections are prone to loosening due to external impacts or vibrations, resulting in poor connection performance and ineffective prevention of loosening.
A self-locking anti-loosening screw and nut assembly was designed. Through the cooperation of the reinforcement mechanism and the adjustment mechanism, and by using the engagement of the insert block and the slot, the relative rotation between the bolt housing and the nut housing is ensured, thereby achieving further locking.
It effectively prevents loosening between the bolt housing and the nut housing due to one rotating while the other remains fixed, thus improving the fixing effect of the connection.
Smart Images
Figure CN223511307U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hardware components technical field, specifically a self -locking anti -loose screw nut combination spare. BACKGROUND
[0002] Screw nut combination spare is a kind of mechanical connecting piece, mainly by the screw with outer thread and the nut with inner thread is composed, it is mutually screwed by the outer thread of screw and the inner thread of nut, to connect two or more components closely together, widely used in mechanical manufacturing, building, furniture and many other industries, it is a very common and practical fastening device.
[0003] Screw and nut as fastener, although there is a certain self-locking between the two, but still there is the possibility of loosening, part of prior art, if screw and nut are connected after often receiving external impact, vibration between each other can be generated, make the thread damage and lead to looseness, affect the connection effect, it is also possible that only one side is rubbed, and the other side is in fixed state, relative rotation between the two can lead to loosening, cannot better play the effect of anti-loose, therefore, aiming at the above problems, a self-locking anti-loose screw nut combination spare is provided. CONTENT OF THE UTILITY MODEL
[0004] To solve the problems presented in the background art, the utility model provides a self-locking anti-loose screw nut combination spare.
[0005] To achieve the above object, the utility model provides the following technical scheme: a self-locking anti-loose screw nut combination spare, including bolt shell, the outer wall of bolt shell is connected with nut shell, the outer wall of nut shell is provided with adjusting mechanism, the outer wall of bolt shell is provided with reinforcing mechanism;
[0006] The reinforcing mechanism includes cylindrical block, the bottom end outer wall of cylindrical block is fixedly connected with fixed ring, the inner wall of fixed ring is slidably connected with two groups of inclined surface blocks, two groups The inclined surface blocks are elastically connected through connecting spring, the outer wall of inclined surface block is fixedly connected with plug-in block, the inner wall of fixed ring is slidably connected with moving block.
[0007] Preferably, the cylindrical block is slidably connected with the inner wall of bolt shell, and the two ends of the connecting spring are fixedly connected with the outer wall of the inclined surface block.
[0008] Preferably, the plug-in block penetrates the outer wall of the fixed ring, and the moving block is in contact with the inclined surface block.
[0009] Preferably, the adjusting mechanism includes rotating block, the inner wall of rotating block is provided with plug-in groove, the outer wall of rotating block is rotatably connected with connecting block, the outer wall of nut shell is fixedly connected with fixed block, the outer wall of fixed block is provided with clamping groove, and the inner wall of connecting block is elastically connected with clamping block through return spring.
[0010] Preferably, the connecting block is in sliding connection with the inner wall of the fixed block, and the slot is in clamping connection with the plug.
[0011] Preferably, one end of the reset spring is in fixed connection with the outer wall of the clamping block, and the other end of the reset spring is in fixed connection with the inner wall of the connecting block.
[0012] Preferably, the clamping block is in clamping connection with the slot, the clamping block is in sliding connection with the inner wall of the connecting block, and the rotating block is in contact with the outer wall of the fixed ring.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] The utility model discloses a reinforcing mechanism and the cooperation of adjusting mechanism, when the nut shell and bolt shell are in threaded connection, the position of fixed ring and rotating block can be adjusted, the horizontal position of plug and slot corresponds, then rotating block is rotated, can make plug and slot clamping, and then the nut shell and bolt shell are fixed, avoid the loosening problem of one party rotating and the other party fixing between the two, improve the fixed effect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the main body structure schematic diagram of the utility model;
[0016] Figure 2 It is the bolt shell, nut shell, adjusting mechanism exploded view structure schematic diagram of the utility model;
[0017] Figure 3 It is the utility model Figure 2 A part enlarged structure schematic diagram of the utility model;
[0018] Figure 4 It is the utility model Figure 2 B part enlarged structure schematic diagram of the utility model;
[0019] Figure 5 It is the bolt shell, nut shell, rotating block section structure schematic diagram of the utility model.
[0020] In the drawing: 1, bolt shell;2, nut shell;3, reinforcing mechanism;301, cylindrical block;302, fixed ring;303, inclined surface block;304, connecting spring;305, plug;306, moving block;4, adjusting mechanism;401, rotating block;402, slot;403, connecting block;404, reset spring;405, clamping block;406, fixed block;407, clamping slot. DETAILED DESCRIPTION
[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.
[0022] As shown in Figures 1 to 5 The utility model provides a self -locking check screw nut assembly, including bolt shell 1, the outer wall of bolt shell 1 is connected with nut shell 2, the outer wall of nut shell 2 is provided with adjusting mechanism 4, the outer wall of bolt shell 1 is provided with reinforcing mechanism 3;Reinforcing mechanism 3 includes cylinder block 301, the bottom outer wall of cylinder block 301 is fixedly connected with fixed ring 302, the inner wall of fixed ring 302 is connected with two groups of inclined surface block 303, and the two groups of inclined surface block 303 are elastically connected through connecting spring 304, the outer wall of inclined surface block 303 is fixedly connected with plug block 305, and the inner wall of fixed ring 302 is slidably connected with moving block 306.
[0023] The above scheme is adopted: bolt shell 1 and nut shell 2 are both prior art, and the other components between them can be tightly fixed together by being combined with each other;By the setting of reinforcing mechanism 3 and adjusting mechanism 4, bolt shell 1 and nut shell 2 can be further fixed after being tightened, so that they will not rotate relatively, and bolt shell 1 and nut shell 2 are locked to avoid loosening;Cylinder block 301 can slide up and down on the inner wall of bolt shell 1, and this sliding fit enables cylinder block 301 to adjust the position according to the tightening degree of nut shell 2, so that reinforcing mechanism 3 and adjusting mechanism 4 are fixed;The two groups of inclined surface block 303 are symmetrically distributed on the inner walls of the two sides of fixed ring 302, and the inclined surfaces thereof are always downward and in contact with the inner wall of moving block 306, and inclined surface block 303 can only move horizontally in the inner wall of fixed ring 302;In the initial state, inclined surface block 303 maintains a relatively stable positional relationship under the action of the elastic force of connecting spring 304, a part of plug block 305 is outside fixed ring 302, plug block 305 is also provided with an inclined surface, and the inclined surface is always downward, when bolt shell 1 and nut shell 2 are screwed, the outer wall of nut shell 2 will generate pressure on the lower inclined surface of plug block 305, so that plug block 305 moves to the inner wall of fixed ring 302 and does not affect normal screwing use;When moving block 306 is pressed upward, moving block 306 will extrude the inclined surface of inclined surface block 303, so that the two groups of inclined surface block 303 slide horizontally to the middle along the inner wall of fixed ring 302, and extrude connecting spring 304, so that the two groups of plug block 305 move to the inner wall of fixed ring 302.
[0024] As shown in Figure 2 , Figure 3 andFigure 5 As shown in the figure, the cylindrical block 301 is in sliding connection with the inner wall of the bolt shell 1, and the two ends of the connecting spring 304 are fixedly connected with the outer wall of the inclined block 303; the plug block 305 penetrates through the outer wall of the fixing ring 302, and the moving block 306 is in contact with the inclined block 303.
[0025] By using the above scheme: the main function of the plug block 305 is to cooperate with the insertion slot 402 in the adjusting mechanism 4, when the nut shell 2 is screwed on the outer wall of the bolt shell 1, the further locking of the bolt shell 1 and the nut shell 2 is realized, preventing the loosening of the two due to relative rotation; and when the thickness of the object between the bolt shell 1 and the nut shell 2 is different, the fixing ring 302 can be moved, so that the cylindrical block 301 moves up and down in the inner wall of the bolt shell 1, and the position is adjusted, so that when the nut shell 2 is at different positions on the bolt shell 1, the plug block 305 can be clamped and fixed with the insertion slot 402.
[0026] As shown in the figure, Figure 2 , Figure 4 and Figure 5 The adjusting mechanism 4 includes a rotating block 401, the inner wall of the rotating block 401 is provided with an insertion slot 402, the outer wall of the rotating block 401 is rotatably connected with a connecting block 403, the outer wall of the nut shell 2 is fixedly connected with a fixed block 406, the outer wall of the fixed block 406 is provided with a clamping slot 407, the inner wall of the connecting block 403 is elastically connected with a clamping block 405 through a return spring 404; the connecting block 403 is in sliding connection with the inner wall of the fixed block 406, the insertion slot 402 is clamped with the plug block 305; one end of the return spring 404 is fixedly connected with the outer wall of the clamping block 405, and the other end of the return spring 404 is fixedly connected with the inner wall of the connecting block 403; the clamping block 405 is clamped with the clamping slot 407, the clamping block 405 is in sliding connection with the inner wall of the connecting block 403, and the rotating block 401 is in contact with the outer wall of the fixing ring 302.
[0027] With the above scheme: the rotating block 401 can rotate relative to the connecting block 403, when the nut shell 2 is screwed on the bolt shell 1, the position of the plug block 305 and the plug groove 402 can not correspond, at this time, the rotating block 401 can be rotated to adjust the position of the rotating block 401 to make the plug groove 402 correspond to the plug block 305 and be clamped, so as to better realize the cooperation with the reinforcing mechanism 3, when the rotating block 401 rotates, the nut shell 2 and the fixed block 406, the connecting block 403 are in a fixed state; the connecting block 403 can slide up and down in the inner wall of the fixed block 406, and then cooperate with the up-down movement of the fixed ring 302, so as to better ensure that the plug block 305 can be clamped with the plug groove 402, and meanwhile, the clamping groove 407 on the outer wall of the fixed block 406 is provided with a plurality of groups, the clamping block 405 in the connecting block 403 can be clamped with one of the clamping grooves 407 under the elastic force of the reset spring 404, so as to fix the position of the connecting block 403, thereby fixing the position of the rotating block 401; when the rotating block 401 needs to be moved up and down, the clamping block 405 can be pressed inward to extrude the reset spring 404 and be out of contact with the clamping groove 407, so that the limiting of the rotating block 401 is released and the rotating block 401 can be moved; when the rotating block 401 is moved up and down to the appropriate position, the clamping block 405 is clamped into the clamping groove 407 under the elastic force of the reset spring 404, so as to ensure that the connecting block 403 and the rotating block 401 will not move at will, and the stability and reliability of the adjusting mechanism 4 are ensured.
[0028] The working principle and use process of the utility model are as follows:
[0029] The operator can first tighten the nut shell 2 and the bolt shell 1, in the process of tightening, the outer wall of the nut shell 2 will generate pressure on the inclined surface below the plug block 305, the plug block 305 moves to the inner wall of the fixed ring 302 after being subjected to the pressure, at this time, the plug block 305 will not affect normal tightening, until the bolt shell 1 and the nut shell 2 are tightly connected with the object, after tightening, the position of the plug block 305 and the plug groove 402 on the rotating block 401 can not correspond, at this time, the rotating block 401 can be moved up and down to make the plug groove 402 correspond to the position of the plug block 305, first, the clamping block 405 is pressed inward to extrude the reset spring 404 to make it out of contact with the clamping groove 407, then the connecting block 403 is moved up and down to drive the rotating block 401 to the appropriate position, the clamping block 405 is clamped into the corresponding clamping groove 407 under the elastic force of the reset spring 404, thereby fixing the position of the rotating block 401; then the rotating block 401 can be rotated to adjust the direction of the plug groove 402, so that it corresponds to the direction of the plug block 305.
[0030] Then the moving block 306 can be pressed upward to extrude the inclined surfaces of the two groups of inclined block 303, so that the two groups of inclined block 303 slide to the middle of the inner wall of the fixed ring 302 at the same time, and extrude the connecting spring 304, so that the two groups of plug block 305 move into the inner wall of the fixed ring 302, at this time the fixed ring 302 can be moved up and down with the cylindrical block 301, and the position between the plug block 305 and the plug slot 402 is adjusted by the rotating block 401, when adjusted to the plug block 305 and the plug slot 402 completely correspond, the moving block 306 can be released, the connecting spring 304 drives the two groups of inclined block 303 to pop out to both sides, the plug block 305 moves outward and is clamped with the plug slot 402, that is, the further locking of the bolt shell 1 and the nut shell 2 can be completed, preventing one of the bolt shell 1 and the nut shell 2 from rotating while the other is fixed, so as to prevent the problem of loosening.
[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A self-locking screw and nut assembly comprising a screw housing (1) characterized in that: The outer wall of the bolt shell (1) is threadedly connected with a nut shell (2), the outer wall of the nut shell (2) is provided with an adjusting mechanism (4), and the outer wall of the bolt shell (1) is provided with a reinforcing mechanism (3); The reinforcing mechanism (3) comprises a cylindrical block (301), the bottom end of the cylindrical block (301) is fixedly connected with a fixed ring (302), the inner wall of the fixed ring (302) is slidably connected with two groups of inclined blocks (303), the two groups of inclined blocks (303) are elastically connected through connecting springs (304), the outer wall of the inclined block (303) is fixedly connected with an insertion block (305), and the inner wall of the fixed ring (302) is slidably connected with a moving block (306).
2. The self-locking check nut assembly according to claim 1, wherein: The cylindrical block (301) is slidably connected with the inner wall of the bolt shell (1), and the two ends of the connecting spring (304) are fixedly connected with the outer wall of the inclined block (303).
3. The self-locking check nut assembly of claim 1, wherein: The insertion block (305) penetrates through the outer wall of the fixed ring (302), and the moving block (306) is in contact with the inclined block (303).
4. The self-locking check nut assembly of claim 1, wherein: The adjusting mechanism (4) comprises a rotating block (401), the inner wall of the rotating block (401) is provided with an insertion slot (402), the outer wall of the rotating block (401) is rotatably connected with a connecting block (403), the outer wall of the nut shell (2) is fixedly connected with a fixed block (406), the outer wall of the fixed block (406) is provided with a clamping groove (407), and the inner wall of the connecting block (403) is elastically connected with a clamping block (405) through a reset spring (404).
5. The self-locking check nut assembly according to claim 4, wherein: The connecting block (403) is slidably connected with the inner wall of the fixed block (406), and the insertion slot (402) is clamped with the insertion block (305).
6. The self-locking check nut assembly of claim 4, wherein: One end of the reset spring (404) is fixedly connected with the outer wall of the clamping block (405), and the other end of the reset spring (404) is fixedly connected with the inner wall of the connecting block (403).
7. The self-locking check-nut assembly according to claim 4, wherein: The clamping block (405) is clamped with the clamping groove (407), the clamping block (405) is slidably connected with the inner wall of the connecting block (403), and the rotating block (401) is in contact with the outer wall of the fixed ring (302).