CN214888278U - Thread anti-loosening and waterproof device - Google Patents
Thread anti-loosening and waterproof device Download PDFInfo
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- CN214888278U CN214888278U CN202120618047.XU CN202120618047U CN214888278U CN 214888278 U CN214888278 U CN 214888278U CN 202120618047 U CN202120618047 U CN 202120618047U CN 214888278 U CN214888278 U CN 214888278U
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- loosening
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Abstract
The utility model provides a screw thread anti-loosening waterproof device, the anti-loosening device includes anti-loosening sleeve and locking screw, the anti-loosening sleeve is the cylinder structure that has the opening and has the cavity, the cavity inside of anti-loosening sleeve is equipped with anti-loosening screw, the end of screw is located to the anti-loosening sleeve cover, the terminal surface of screw is equipped with anti-loosening screw hole, the screw thread in the anti-loosening screw hole is opposite with the screw thread direction of screw rod surface, the screw thread of anti-loosening screw matches with the screw thread of anti-loosening screw hole, anti-loosening screw twists in the anti-loosening screw hole; and a locking threaded hole is formed in the anti-loosening sleeve, the locking screw is screwed into the locking threaded hole, and the tip of the locking screw is inserted into a threaded groove in the outer surface of the screw rod. Locking nut on the screw rod is carried out through the locking cover, and locking screw then can restrict the position of locking cover on the screw rod, and effectual locking cover that prevents drops from the screw rod tip, prevents locking inefficacy.
Description
Technical Field
The utility model relates to a locking technical field of screw thread, concretely relates to locking watertight fittings of screw thread.
Background
Threaded connections are a common connection means in mechanical connections and are widely used because of their ease of installation and removal. However, the threaded connection has the disadvantages that the threaded connection is easy to loosen when influenced by factors such as vibration and the like. For special equipment such as a tower crane, loosening of threaded connection can lead to overturning of the tower crane and serious accidents of cluster death and cluster injury, so that loosening prevention treatment of the threaded connection is an essential measure. In addition, the operating environment of tower crane is comparatively abominable, often receives the influence of factors such as rainwater, dust, and threaded connection card can often appear, corrode scheduling problem.
In summary, there is a need for a thread anti-loosening and waterproof device to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking watertight fittings of screw thread aims at solving threaded connection and appears not hard up problem, and concrete technical scheme is as follows:
a thread anti-loosening waterproof device comprises an anti-loosening sleeve and a locking screw, wherein the anti-loosening sleeve is of a cylindrical structure with an opening and a hollow cavity, an anti-loosening screw is arranged inside the hollow cavity of the anti-loosening sleeve, the end part of the screw is sleeved with the anti-loosening sleeve, an anti-loosening threaded hole is formed in the end surface of the screw, threads in the anti-loosening threaded hole are opposite to the thread turning direction of the outer surface of the screw, the threads of the anti-loosening screw are matched with the threads of the anti-loosening threaded hole, and the anti-loosening screw is screwed into the anti-loosening threaded hole; and a locking threaded hole is formed in the anti-loosening sleeve, the locking screw is screwed into the locking threaded hole, and the tip of the locking screw is inserted into a threaded groove in the outer surface of the screw rod.
Preferably, in the above technical solution, the upper portion of the anti-loosening sleeve is a hexagonal head.
Preferably, in the above technical solution, the anti-loose sleeve is a hexagonal prism.
Preferably, in the above technical solution, the hollow cavity of the anti-loose sleeve is filled with grease.
Preferably among the above technical scheme, the number of locking screw hole is two at least on the locking cover, the locking screw sets up with locking screw hole one-to-one.
Preferably among the above technical scheme, a plurality of locking screw hole sets up along the circumference equipartition of locking cover.
Use the technical scheme of the utility model, following beneficial effect has:
the thread of the anti-loosening screw is opposite to the thread of the outer surface of the screw, so that the loosening direction of the locking nut on the screw is just the tightening direction of the anti-loosening sleeve on the screw, and when the locking nut rotates with a loosening tendency, the displacement of the locking nut on the screw can be limited due to the anti-loosening sleeve, so that the anti-loosening is realized; during the set screw on the locking cover inserted the thread groove of screw rod surface, the set screw then can restrict the position of locking cover on the screw rod, and effectual locking cover that prevents drops from the screw rod tip, prevents locking inefficacy.
At the inside lubricating grease that fills of locking collar, lubricating grease can realize lubricating the lock nut on screw rod and the screw rod, plays the rusty purpose of preventing screw rod, lock nut simultaneously, and in addition, the tip of screw rod is located to the locking collar cover, and the locking collar can also play dustproof, rain-proof water, anticorrosive effect, protects screw rod and lock nut.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic view of the overall structure of the anti-loosening device of the present invention;
FIG. 2 is a schematic view of the construction of the anti-loosening sleeve of FIG. 1;
the anti-loosening device comprises an anti-loosening sleeve 1, a hexagonal head 1.1, a locking screw rod 1.2, a locking threaded hole 1.3, lubricating grease 2, a locking screw 3, a locking screw 4, a locking nut 5, a screw rod 5.1 and a locking threaded hole.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below, and preferred embodiments of the present invention will be described. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1:
referring to fig. 1-2, the anti-loose device comprises an anti-loose sleeve 1 and a locking screw 3, wherein the anti-loose sleeve 1 is a cylindrical structure with an opening and a hollow cavity, an anti-loose screw 1.2 is arranged inside the hollow cavity of the anti-loose sleeve 1, the anti-loose sleeve 1 is sleeved at the end of the screw 5 through the opening, an anti-loose threaded hole 5.1 is arranged on the end surface of the screw 5, threads in the anti-loose threaded hole 5.1 are opposite to the thread turning direction of the outer surface of the screw 5, threads of the anti-loose screw 1.2 are matched with threads of the anti-loose threaded hole 5.1, and the anti-loose screw 1.2 is screwed into the anti-loose threaded hole 5.1; the locking sleeve 1 is provided with a locking threaded hole 1.3, the locking screw 3 is screwed into the locking threaded hole 1.3, and the tip of the locking screw 3 is inserted into a thread groove on the outer surface of the screw rod 5.
In the preferred embodiment, referring to fig. 2, the upper portion of the anti-loose sleeve 1 is a hexagonal head 1.1, the upper portion of the anti-loose sleeve 1 refers to the end opposite to the opening, and the upper portion of the anti-loose sleeve 1 is arranged in a hexagonal head shape to facilitate the tightening of the anti-loose sleeve 1 by using a wrench or other tools. Besides, the anti-loosening sleeve 1 can be designed into a hexagonal prism in shape, so that a wrench and other tools can be used for screwing the anti-loosening sleeve.
Referring to fig. 1, lubricating grease 2 is filled in the hollow cavity of the anti-loosening sleeve 1, lubricating grease 2 is filled in the anti-loosening sleeve 1, the lubricating grease 2 can lubricate the screw rod 5 and the locking nut 4 on the screw rod 5, and the purpose of preventing the screw rod and the locking nut from rusting is achieved at the same time.
Preferably, the number of the locking threaded holes 1.3 on the anti-loosening sleeve 1 is at least two, and the locking screws 3 are arranged in one-to-one correspondence with the locking threaded holes 1.3. Preferably, a plurality of the locking threaded holes 1.3 are uniformly distributed along the circumferential direction of the anti-loosening sleeve 1.
The technical scheme of the embodiment is specifically as follows:
filling lubricating grease 2 into the hollow cavity of the anti-loosening sleeve 1, sleeving the anti-loosening sleeve 1 on the end part of the screw, screwing the anti-loosening screw 1.2 into the anti-loosening threaded hole 5.1, and enabling the end face of the opening end of the anti-loosening sleeve 1 to prop against the locking nut 4 on the screw; and screwing the locking screw 3 into the locking threaded hole of the anti-loosening sleeve, inserting the tip of the locking screw into a threaded groove on the outer surface of the screw rod, and finishing the installation of the anti-loosening device.
The thread of the anti-loosening screw is opposite to the thread turning direction of the outer surface of the screw, so that the loosening direction of the locknut is just the tightening direction of the anti-loosening sleeve on the screw, and when the locknut rotates in a loosening tendency, the displacement of the locknut on the screw can be limited due to the anti-loosening sleeve, so that the anti-loosening is realized; during the set screw on the locking cover inserted the thread groove of screw rod surface, the set screw then can restrict the position of locking cover on the screw rod, and effectual locking cover that prevents drops from the screw rod tip, prevents locking inefficacy.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The thread anti-loosening and waterproof device is characterized by comprising an anti-loosening sleeve (1) and a locking screw (3), wherein the anti-loosening sleeve (1) is of a cylinder structure with an opening and a hollow cavity, an anti-loosening screw (1.2) is arranged inside the hollow cavity of the anti-loosening sleeve (1), the anti-loosening sleeve (1) is sleeved at the end part of the screw (5), an anti-loosening threaded hole (5.1) is formed in the end surface of the screw (5), threads in the anti-loosening threaded hole (5.1) are opposite to the thread turning direction of the outer surface of the screw (5), threads of the anti-loosening screw (1.2) are matched with threads of the anti-loosening threaded hole (5.1), and the anti-loosening screw (1.2) is screwed into the anti-loosening threaded hole (5.1); the anti-loosening sleeve (1) is provided with a locking threaded hole (1.3), the locking screw (3) is screwed into the locking threaded hole (1.3), and the tip of the locking screw (3) is inserted into a thread groove in the outer surface of the screw rod (5).
2. Thread anti-loosening and waterproof device according to claim 1, characterized in that the upper part of the anti-loosening sleeve (1) is a hexagonal head (1.1).
3. Thread anti-loosening and waterproof device according to claim 1, characterized in that the anti-loosening sleeve (1) is a hexagonal prism.
4. Thread anti-loosening and waterproof device according to claim 1, characterized in that the hollow cavity of the anti-loosening sleeve (1) is filled with grease (2).
5. The thread looseness-prevention and waterproof device according to claim 1, wherein the number of the locking threaded holes (1.3) in the looseness-prevention sleeve (1) is at least two, and the locking screws (3) are arranged in one-to-one correspondence with the locking threaded holes (1.3).
6. Thread anti-loosening and waterproof device according to claim 5, characterized in that a plurality of locking threaded holes (1.3) are uniformly distributed along the circumference of the anti-loosening sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120618047.XU CN214888278U (en) | 2021-03-26 | 2021-03-26 | Thread anti-loosening and waterproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120618047.XU CN214888278U (en) | 2021-03-26 | 2021-03-26 | Thread anti-loosening and waterproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888278U true CN214888278U (en) | 2021-11-26 |
Family
ID=78871075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120618047.XU Active CN214888278U (en) | 2021-03-26 | 2021-03-26 | Thread anti-loosening and waterproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888278U (en) |
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2021
- 2021-03-26 CN CN202120618047.XU patent/CN214888278U/en active Active
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