Locking anti-retreating jackscrew
By designing grooves, openings, locking rings, and wrench grooves on the set screw body, the problem of set screw loosening in vibration or impact environments is solved, achieving a more stable connection effect, while simplifying operation and reducing costs.
Patent Information
- Application Number
- CN202423224735.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing set screws are prone to loosening in vibration or impact environments, leading to connection failure. Existing anti-loosening technologies become less effective with long-term use or in high-vibration environments, and are inconvenient to operate or costly.
A locking anti-reverse set screw is designed. By opening a groove and an opening at the top of the set screw body and setting a locking ring in the groove, the threaded connection between the locking ring and the groove, combined with the first and second wrench groove structures, enhances the tightness between the set screw and the threaded hole, and achieves the anti-reverse effect through the cooperation of the opening and the locking ring.
It effectively prevents the set screw from loosening under vibration or impact, enhances the stability and reliability of the connection, and is simple to operate and low in cost.
Smart Images
Figure CN223676750U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fastener technical field, concretely related to a locking anti -retreating top wire. BACKGROUND
[0002] The top wire is a common fastener, and is widely used in mechanical, electronic, building and other fields. Its main function is to fix two or more components together to ensure the stability and reliability of the connection. However, in the actual use process, the top wire is easy to loosen due to vibration, impact and other factors, leading to connection failure and affecting the normal operation of the equipment.
[0003] The traditional anti -retreating technology mainly includes using the lock washer, spring washer, thread locking glue and other methods. These methods can prevent the top wire from loosening to a certain extent, but there are the following problems: first, in the long -term use or high vibration environment, the washer is easy to lose elasticity, and the lock effect is gradually weakened. Secondly, although the use of thread locking glue can improve the lock effect, when disassembling is needed, high temperature heating or special tools are often needed, which is inconvenient to operate and has high cost.
[0004] That is, the existing top wire structure usually only realizes fastening through simple thread connection, and lacks effective anti -retreating mechanism. In the environment with large vibration or impact, the top wire is easy to gradually loosen due to the slight sliding of the thread, leading to connection failure.
[0005] In view of the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL
[0006] In view of the problems in the related art, the utility model provides a locking anti -retreating top wire to overcome the above technical problems existing in the prior art.
[0007] Therefore, the utility model adopts the specific technical scheme as follows:
[0008] A locking anti -retreating top wire, comprising a top wire main body, a recess is formed in the top of the top wire main body, and a plurality of openings are formed in the outer side of the top of the top wire main body and communicated with the recess; a locking ring is arranged in the recess, the outer diameter of the locking ring is greater than the inner diameter of the recess, and the locking ring is connected with the recess through a thread, a first wrench groove is formed in the inner bottom of the recess, and a second wrench groove is formed in the middle of the locking ring.
[0009] As preferably, in order to better realize the anti-retreat effect, the middle part of the bottom end of the top pin body is provided with a top head, and the bottom end of the top head is provided with an arc structure. The outer side of the locking ring is provided with an external thread, and the inner wall of the groove is provided with an internal thread matched with the external thread. The cross section of the locking ring is a reverse trapezoidal structure, and the outer side of the locking ring is inclined from top to bottom towards the inner side. The top end, the top end and the bottom end of the first wrench groove are all provided with chamfers. The first wrench groove and the second wrench groove are both internal hexagonal structures, and the inner diameter of the second wrench groove is larger than that of the first wrench groove.
[0010] The utility model discloses the beneficial effects are: through being provided with opening, locking ring, first wrench groove and second wrench groove, can not only under the action of opening and locking ring, make the locking ring slowly turn into the process in the groove can exert an outside force to the top end of top pin body, enhance the cooperation tightness of top pin body and threaded hole, thereby realize more excellent anti-retreat effect, and also can under the action of first wrench groove and second wrench groove, conveniently realize the rotation operation of locking ring and top pin body, thereby can better satisfy the locking demand of top pin. ACCURACY
[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.
[0012] Fig. 1 It is a structure diagram of locking anti-retreat top pin according to the utility model embodiment;
[0013] Fig. 2 It is a structure diagram of groove in locking anti-retreat top pin according to the utility model embodiment;
[0014] Fig. 3 It is a sectional view of locking anti-retreat top pin according to the utility model embodiment.
[0015] In the drawing:
[0016] 1, top pin body;2, top head;3, groove;4, opening;5, locking ring;6, external thread;7, internal thread;8, first wrench groove;9, second wrench groove. DETAILED DESCRIPTION
[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0018] According to an embodiment of the present invention, a locking anti-reverse set screw is provided.
[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figs. 1-3 As shown, the locking anti-reverse screw according to an embodiment of the present invention includes a screw body 1, a groove 3 on the top of the screw body 1, and several openings 4 communicating with the groove 3 on the outer side of the top of the screw body 1. In specific application, the number of openings 4 in this embodiment is the same as the number of sides of the wrench groove. By setting the openings 4, a force can be applied to the top of the screw body 1 to achieve the anti-reverse effect. A locking ring 5 is provided inside the groove 3. The outer diameter of the locking ring 5 is larger than the inner diameter of the groove 3, and the locking ring 5 and the groove 3 are connected by threads. In specific application, the outer diameter of the locking ring 5 is slightly larger than the inner diameter of the groove 3, so that a force can be applied to the top of the screw body 1 to achieve the anti-reverse effect as the locking ring 5 slowly rotates into the groove 3. A first wrench groove 8 is provided at the bottom of the groove 3, and a second wrench groove 9 is provided through the middle of the locking ring 5.
[0020] By utilizing the above-mentioned technical solution of this utility model, and by providing an opening 4, a locking ring 5, a first wrench groove 8, and a second wrench groove 9, not only can an outward force be applied to the top of the set screw body 1 during the process of the locking ring 5 slowly rotating into the groove 3 under the action of the opening 4 and the locking ring 5, thereby enhancing the tightness of the fit between the set screw body and the threaded hole and achieving a better anti-retraction effect, but also the rotation operation of the locking ring 5 and the set screw body 1 can be easily realized under the action of the first wrench groove 8 and the second wrench groove 9, thereby better meeting the locking requirements of the set screw.
[0021] In one embodiment, a top head 2 is provided at the bottom center of the top screw body 1, and the bottom end of the top head 2 is set as an arc-shaped structure, so as to achieve a better connection effect.
[0022] In one embodiment, the outer side of the locking ring 5 is provided with an external thread 6, and the inner wall of the groove 3 is provided with an internal thread 7 that mates with the external thread 6, thereby facilitating the installation and removal of the locking ring 5 and the groove 3.
[0023] In one embodiment, the cross section of the locking ring 5 is in an inverted trapezoidal structure, and the outer side of the locking ring 5 is arranged to be inclined from top to bottom towards the inner side, so that the locking effect on the jackscrew body 1 can be better achieved.
[0024] In one embodiment, the top end of the second wrench groove 9, the top end and the bottom end of the first wrench groove 8 are all provided with chamfers, the first wrench groove 8 and the second wrench groove 9 are both in an inner hexagonal structure, and the inner diameter of the second wrench groove 9 is greater than that of the first wrench groove 8, so that the rotating operation on the locking ring 5 and the jackscrew body 1 can be conveniently achieved.
[0025] In order to facilitate the understanding of the above technical solutions of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail below.
[0026] In actual application, first, the inner hexagonal wrench is inserted into the first wrench groove 8, so that the jackscrew body 1 can be driven to rotate until reaching the predetermined position, then a larger inner hexagonal wrench is replaced and inserted into the second wrench groove 9, finally the locking ring 5 can be rotated to slowly insert into the groove 3, at this time, since the outer diameter of the locking ring 5 is slightly greater than the inner diameter of the groove 3, and the top outer side of the jackscrew body 1 is provided with a plurality of openings 4, so that an outward force can be applied to the top end of the jackscrew body 1 in the process of the locking ring 5 slowly rotating into the groove 3, so that the outer thread on the top outer side of the jackscrew body 1 can be more tightly contacted with the threaded hole, and the anti-back-off effect is achieved.
[0027] In summary, by means of the above technical solutions of the utility model, by being provided with the opening 4, the locking ring 5, the first wrench groove 8 and the second wrench groove 9, not only can the locking ring 5 slowly rotate into the groove 3 in the process of the opening 4 and the locking ring 5, so that an outward force can be applied to the top end of the jackscrew body 1, the tightness of the jackscrew body and the threaded hole is enhanced, so that a more excellent anti-back-off effect is achieved, but also the rotating operation on the locking ring 5 and the jackscrew body 1 can be conveniently achieved under the action of the first wrench groove 8 and the second wrench groove 9, so that the locking demand of the jackscrew can be better met.
[0028] In the utility model, unless otherwise expressly provided and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements, unless otherwise expressly limited, the above terms in the utility model can be understood according to the specific meaning in the utility model by those skilled in the art.
[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A locking anti-backout jack screw comprising a jack screw body (1), characterized in that, The top of the top screw body (1) is provided with a groove (3), and the outer side of the top of the top screw body (1) is provided with a plurality of openings (4) communicated with the groove (3); The inside of the groove (3) is provided with a locking ring (5), the outer diameter of the locking ring (5) is greater than the inner diameter of the groove (3), and the locking ring (5) and the groove (3) are connected through threads, the inner bottom of the groove (3) is provided with a first wrench groove (8), and the middle of the locking ring (5) is provided with a second wrench groove (9).
2. A locking anti-backout set screw according to claim 1, wherein, The bottom end of the top screw body (1) is provided with a top head (2), and the bottom end of the top head (2) is provided as an arc structure.
3. The locking anti-backout set screw of claim 1, wherein: The outer side of the locking ring (5) is provided with an external thread (6), and the inner wall of the groove (3) is provided with an internal thread (7) matched with the external thread (6).
4. The locking anti-backout set screw according to claim 1, wherein, The cross section of the locking ring (5) is an inverted trapezoidal structure, and the outer side of the locking ring (5) is inclinedly arranged from top to bottom towards the inside.
5. The locking anti-backout set screw of claim 1, wherein, The top end of the second wrench groove (9), the top end and the bottom end of the first wrench groove (8) are all provided with chamfers.
6. The locking anti-backout set screw of claim 1, wherein, The first wrench groove (8) and the second wrench groove (9) are all internal hexagonal structures, and the inner diameter of the second wrench groove (9) is greater than the inner diameter of the first wrench groove (8).