CN210660973U - Anti-loosening bolt - Google Patents
Anti-loosening bolt Download PDFInfo
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- CN210660973U CN210660973U CN201921488921.1U CN201921488921U CN210660973U CN 210660973 U CN210660973 U CN 210660973U CN 201921488921 U CN201921488921 U CN 201921488921U CN 210660973 U CN210660973 U CN 210660973U
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- bolt
- screw rod
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Abstract
The utility model discloses a locking bolt, which comprises a bolt head and a screw rod connected with the bolt head into a whole, wherein the side wall of the screw rod is provided with a left-handed thread and a right-handed thread which are mutually staggered, the thread pitches of the left-handed thread and the right-handed thread are different, and the intersection of the left-handed thread and the right-handed thread is of a thread-free structure; two nuts are sequentially sleeved on the screw rod, each nut comprises a left-handed nut and a right-handed nut, the left-handed nut is in threaded connection with the left-handed thread, and the right-handed nut is in threaded connection with the right-handed thread; the anti-loosening bolt has the advantages of good anti-loosening effect, simple structure and convenience in use.
Description
Technical Field
The utility model relates to a machine part field, specificly relate to a can locking bolt.
Background
The bolt is a fastening component commonly used in the field of mechanical fixation, is very widely applied, is commonly used in various fields of daily life and industry, and is easy to loosen between the nut and the screw when the equipment is in a vibration state for a long time in the use process of the common bolt, so that the normal work of the equipment is influenced, and even safety accidents are caused; the locking bolt that moves is a can effectively prevent that nut and screw rod from taking place relative pivoted bolt, among the prior art, a technology for the bolt locking is not hard up is mostly through increasing nut quantity, mode such as install resistance circle additional, and locking effect is relatively poor, and in addition, some locking bolt that moves adopts mode such as installing the connecting piece between nut and the bolt head additional, and the structure is complicated and has reduced the installation effectiveness of bolt, consequently need to design a locking bolt that moves effectually, simple structure and use convenient urgently.
SUMMERY OF THE UTILITY MODEL
The not enough to prior art, the to-be-solved technical problem of the utility model is to provide a locking movable bolt that moves that locking is effectual, simple structure and use are convenient.
In order to solve the above problem, the utility model provides a following technical scheme:
a kind of anti-loose bolt, including bolt head and screw bolt that is connected with bolt head as an organic whole, the sidewall of the screw bolt has left-handed screw and right-handed screw that stagger each other, the pitch of the left-handed screw and right-handed screw is different, the intersection of the left-handed screw and right-handed screw is the thread-free structure; two nuts are sequentially sleeved on the screw rod and comprise a left-handed nut and a right-handed nut, the left-handed nut is in threaded connection with the left-handed thread, and the right-handed nut is in threaded connection with the right-handed thread.
According to the anti-loosening bolt, the left-handed thread and the right-handed thread exist on the screw rod at the same time, and the screw rod can be directly processed into a positive and negative screw rod during screw rod production; in order to prevent the nut from being interfered by reverse threads when the nut rotates, a thread-free structure is arranged at the intersection of the left-handed threads and the right-handed threads, namely, only a thread groove is formed, and no reverse thread is blocked; when the bolt is used, the screw rod is arranged at a proper position and then screwed into one of the nuts, the nut is screwed into the other nut in the opposite direction after being screwed to a fixed position according to the thread track matched with the nut, when the two nuts lean against each other, because the thread directions matched with the two nuts are opposite, when the nut close to one side of the bolt head has a loosening tendency, the other nut can effectively limit the rotation of the nut, the two nuts are mutually matched into a whole and are mutually locked, and the purpose of preventing loosening is achieved.
The technical scheme of the utility model still include, in two nuts, the right-handed nut is located nearly bolt head one side, and the pitch of right-handed screw is greater than the pitch of left-handed screw. In the use, the great right-handed nut of pitch screw in screw rod earlier, the less left-handed nut screw in screw rod of pitch again, if when taking place to become flexible, the pitch of right-handed nut is great, and the left-handed nut of little pitch is similar to limiting displacement's mounting to right-handed nut, can show improvement locking effect of moving.
As a further optimization scheme of this scheme, for the fastness that improves left-handed nut and right-handed nut and lock each other after fixed, the technical scheme of the utility model still include, left-handed nut is equipped with mutual interlock structure with right-handed nut's contact surface.
Further, the interengaging structure is annular and concentric with the nut. After the first screwed nut is fixed, the second screwed nut is rotated to the position where the two nuts are contacted, and then the rotary occlusion can be realized.
Preferably, the technical scheme of the utility model also includes, mutual interlock structure is including the cockscomb structure tooth mouth I that is located the left-handed nut lateral wall and the cockscomb structure tooth mouth II that is located the right-handed nut lateral wall and with I size matched with in the cockscomb structure tooth mouth, and the interlock direction of cockscomb structure tooth mouth I and cockscomb structure tooth mouth II is unanimous with the nut of nearly bolt head not hard up direction. When two nuts are screwed to contact, the mutual occlusion of two saw-toothed tooth mouths is realized, and then the two nuts are mutually restrained and cannot be separated, so that the anti-loosening effect is effectively improved.
Further, the technical scheme of the utility model still includes, highly being greater than the pitch of left-handed screw thread of cockscomb structure tooth mouth I, cockscomb structure tooth mouth II.
The utility model has the advantages that: compared with the prior art, the utility model aims at providing a locking bolt that moves that locking is effectual, simple structure and convenient to use, in order to realize above-mentioned technological effect, there are left-handed screw thread and right-handed screw thread on the screw rod simultaneously, and be equipped with the left-handed nut that matches with left-handed screw thread and the right-handed nut that matches with right-handed screw thread, when this bolt uses, two nuts lean on together, because the screw thread direction that two nuts match is opposite, when the nut that is close to one side of bolt head has the not hard up tendency to take place, another nut can effectively restrict its pivoted effect, two nuts cooperate each other to be a whole, the mutual locking plays the purpose of locking, it is effectual to prevent moving; in addition, compared with the prior art, the anti-loosening bolt of the scheme is simple in structure and convenient to use.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a loosenable bolt in an embodiment.
Fig. 2 is an enlarged view at I in fig. 1.
Fig. 3 is a left side view of the right-handed nut.
Fig. 4 is a partial structure schematic diagram of the occlusion part of the left-handed nut and the right-handed nut.
The screw bolt comprises a bolt head 1, a bolt head 2, a screw rod 3, a left-handed thread 4, a right-handed thread 5, a left-handed nut 6, a right-handed nut 7, a serrated jaw I, a serrated jaw II and a screw bolt head, wherein the screw bolt head is connected with the screw rod through the screw rod 3.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are for simplicity of description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting.
A locking bolt comprises a bolt head 1 and a screw rod 2 connected with the bolt head 1 into a whole, wherein the side wall of the screw rod 2 is provided with a left-handed thread 3 and a right-handed thread 4 which are staggered with each other, the thread pitches of the left-handed thread 3 and the right-handed thread 4 are different, the thread pitch of the right-handed thread is greater than that of the left-handed thread, and the intersection of the left-handed thread 3 and the right-handed thread 4 is of a thread-free structure; two nuts are sequentially sleeved on the screw rod 2 and comprise a left-handed nut 5 and a right-handed nut 6, the left-handed nut 5 is in threaded connection with the left-handed thread 3, and the right-handed nut 6 is in threaded connection with the right-handed thread 4.
The contact surface of levogyration nut 5 and right-handed nut 6 is equipped with mutual interlock structure, and mutual interlock structure is the annular and concentric with the nut, mutual interlock structure including the cockscomb structure tooth mouth I7 that is located 5 lateral walls of levogyration nut and be located 6 lateral walls of right-handed nut and with cockscomb structure tooth mouth II 8 of I7 size matched with of cockscomb structure tooth mouth, cockscomb structure tooth mouth I7 is unanimous with the nut of nearly bolt head 1 not hard up direction of the interlock direction of cockscomb structure tooth mouth II 8.
In the two nuts, the right-handed nut is positioned on one side close to the bolt head, when the anti-loosening screw is used, the screw is fixed at a proper position and then is screwed in the right-handed nut, the right-handed nut is screwed in the left-handed nut after being screwed down, the left-handed nut is screwed in the right-handed nut, the two nuts are close to each other and are occluded with each other, the mutual locking is realized, and the anti-loosening effect is further achieved.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a but locking bolt, includes the bolt head and even screw rod as an organic whole with the bolt head, its characterized in that: the side wall of the screw is provided with left-hand threads and right-hand threads which are staggered with each other, the thread pitches of the left-hand threads and the right-hand threads are different, and the intersection of the left-hand threads and the right-hand threads is of a thread-free tooth structure; the screw rod is sequentially sleeved with two nuts, each nut comprises a left-handed nut and a right-handed nut, the left-handed nut is in threaded connection with the left-handed thread, and the right-handed nut is in threaded connection with the right-handed thread.
2. The anti-loosening bolt as defined in claim 1, wherein: in the two nuts, the right-handed nut is positioned on one side close to the bolt head, and the thread pitch of the right-handed thread is greater than that of the left-handed thread.
3. The anti-loosening bolt as defined in claim 2, wherein: and the contact surface of the left-handed nut and the right-handed nut is provided with a mutual occlusion structure.
4. The anti-loosening bolt as defined in claim 3, wherein: the mutual meshing structure is annular and concentric with the nut.
5. The anti-loosening bolt as defined in claim 4, wherein: each other interlock structure is including the cockscomb structure tooth mouth I that is located the levogyration nut lateral wall and be located the dextrorotation nut lateral wall and with I size matched with cockscomb structure tooth mouth II of cockscomb structure tooth mouth, the interlock direction of cockscomb structure tooth mouth I and cockscomb structure tooth mouth II is unanimous with the nut of nearly bolt head not hard up direction.
6. The anti-loosening bolt as defined in claim 5, wherein: the height of the serrated tooth opening I and the serrated tooth opening II is larger than the thread pitch of the left-handed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488921.1U CN210660973U (en) | 2019-09-09 | 2019-09-09 | Anti-loosening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488921.1U CN210660973U (en) | 2019-09-09 | 2019-09-09 | Anti-loosening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660973U true CN210660973U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921488921.1U Active CN210660973U (en) | 2019-09-09 | 2019-09-09 | Anti-loosening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045934A (en) * | 2021-11-09 | 2022-02-15 | 中建八局第二建设有限公司 | Single-layer aluminum alloy dome latticed shell structure and mounting method |
-
2019
- 2019-09-09 CN CN201921488921.1U patent/CN210660973U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045934A (en) * | 2021-11-09 | 2022-02-15 | 中建八局第二建设有限公司 | Single-layer aluminum alloy dome latticed shell structure and mounting method |
| CN114045934B (en) * | 2021-11-09 | 2023-03-21 | 中建八局第二建设有限公司 | Single-layer aluminum alloy dome latticed shell structure and mounting method |
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