CN216382179U - Interlocking type anti-loosening bolt assembly - Google Patents

Interlocking type anti-loosening bolt assembly Download PDF

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Publication number
CN216382179U
CN216382179U CN202122743168.XU CN202122743168U CN216382179U CN 216382179 U CN216382179 U CN 216382179U CN 202122743168 U CN202122743168 U CN 202122743168U CN 216382179 U CN216382179 U CN 216382179U
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CN
China
Prior art keywords
nut
sleeve
screw
conical
bolt assembly
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Active
Application number
CN202122743168.XU
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Chinese (zh)
Inventor
徐祝彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Xianlong Fastener Co ltd
Original Assignee
Xu Zhubin
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Priority to CN202122743168.XU priority Critical patent/CN216382179U/en
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Abstract

The utility model discloses an interlocking type anti-loose bolt assembly which comprises a screw, a first nut and a second nut, wherein the first nut and the second nut are in threaded connection with a screw rod of the screw, an elastic sleeve which is connected with the first nut into a whole is arranged on the end surface of the first nut, an annular chute clamped with the elastic sleeve on the first nut is formed in the end surface of the second nut, a conical sleeve is arranged on the inner side of the annular chute, the extending end of the conical sleeve is higher than the end surface of the second nut, and a conical hole matched with the conical sleeve is formed in the inner orifice part of the first nut. The first nut and the second nut form a connecting piece which can rotate relatively but cannot be separated, and the conical sleeve on the second nut is tightened through the conical hole on the first nut, so that the conical sleeve tightly embraces the screw rod, a thread gap between the conical sleeve and the screw rod is eliminated, and the second nut cannot rotate or move in the using process, so that the purpose of anti-loosening and locking is achieved.

Description

Interlocking type anti-loosening bolt assembly
Technical Field
The utility model relates to an interlocking type anti-loose bolt assembly, and belongs to the technical field of fasteners.
Background
Bolts are a common fastener used in a wide variety of mechanical and electrical devices. For common application occasions, no strict requirements are made on the anti-loosening property of the bolt. However, in the fields of automobiles, aviation, aerospace, nuclear power plants and the like, many devices or parts work in a vibration environment for a long time, and the bolts and the nuts are easy to loosen, so that the normal work of the devices is affected, and even safety accidents can be caused.
Various anti-loosening bolts appear in the existing fastener industry, and the anti-loosening bolt is complex in structure, high in production cost, inconvenient to install, poor in universality and unsatisfactory in anti-loosening effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an interlocking type anti-loosening bolt assembly which can achieve the purpose of anti-loosening and locking, does not damage each part of a bolt after being disassembled, and can still be used continuously by a screw, a gasket and a nut, so that the cost is saved; and when the bolt is installed, the bolt and the nut can be separately and independently wrenched, the bolt is convenient to install in the same way as a conventional bolt, and the universality is greatly improved.
The utility model is formed as follows: the utility model provides an interlocking type check bolt subassembly, including the screw and with the screw rod threaded connection's of screw first nut and second nut, be provided with on the terminal surface of first nut and be connected elastic sleeve as an organic whole with first nut, set up on the terminal surface of second nut with the annular chute of the elastic sleeve block on the first nut, be provided with the toper cover in the inboard of annular chute, and the end that stretches out of toper cover is higher than the terminal surface of second nut, the interior drill way portion of first nut be provided with toper cover complex bell mouth.
Further, threads matched with the screws are arranged in the inner holes of the conical sleeves.
Furthermore, the included angle between the annular chute and the vertical plane is 1-3 degrees.
Further, expansion joints are uniformly formed in the circumference of the elastic sleeve.
Further, the depth of the annular chute is larger than the height of the elastic sleeve and smaller than the height of the conical sleeve.
Due to the adoption of the technical scheme, the utility model has the advantages that: the elastic sleeve on the first nut is clamped with the annular inclined groove on the second nut, so that the first nut and the second nut form a connecting piece which can rotate relatively but cannot be separated, and meanwhile, the conical sleeve on the second nut is tightened through the conical hole on the first nut, so that the conical sleeve tightly embraces the screw rod, a thread gap between the conical sleeve and the screw rod is eliminated, the second nut cannot rotate or move in the using process, and the nut or the screw can be kept in a fixed state through the mutual traction action of the connecting piece even under the external forces such as vibration and the like, so that the purpose of anti-loosening and locking is achieved. The utility model is convenient to install and dismantle, does not cause any damage to the disassembled screw, gasket and nut, and can still be used continuously, thus saving the cost; meanwhile, the screw and the nut can be separately and independently screwed, so that the installation is convenient, the working efficiency can be improved, and the universality is greatly improved. Therefore, the anti-loosening locking device has the advantages of good anti-loosening locking effect, simple structure, convenience in use, low manufacturing cost and convenience for batch production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of a schematic of a first nut;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a cross-sectional view of the second nut.
Description of reference numerals: 1-screw, 2-first nut, 3-second nut, 4-elastic sleeve, 5-expansion joint, 6-tapered hole, 7-annular chute and 8-tapered sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 4, the interlocking type anti-loose bolt assembly of the present invention includes a bolt 1, and a first nut 2 and a second nut 3 which are in threaded connection with a screw of the bolt 1, wherein an elastic sleeve 4 integrally connected with the first nut 2 is disposed on an end surface of the first nut 2, an annular inclined groove 7 engaged with the elastic sleeve 4 on the first nut 2 is disposed on an end surface of the second nut 3, a tapered sleeve 8 is disposed inside the annular inclined groove 7, an extending end of the tapered sleeve 8 is higher than an end surface of the second nut 3, and a tapered hole 6 engaged with the tapered sleeve 8 is disposed at an inner orifice portion of the first nut 2. And the inner hole of the conical sleeve 8 is provided with a thread matched with the screw 1. The included angle between the annular chute 7 and the vertical plane is 2 degrees. Expansion joints 5 are uniformly formed in the circumference of the elastic sleeve 4, so that the elasticity of the elastic sleeve 4 is improved, and the elastic sleeve 4 is conveniently pressed into the annular chute 7. The depth of the annular chute 7 is greater than the height of the elastic sleeve 4 and less than the height of the conical sleeve 8, so that the elastic sleeve 4 can be completely installed in the annular chute 7, the first nut 2 and the second nut 3 can be completely attached when in use, and meanwhile, the conical sleeve 8 on the second nut 3 can be tightened up through the conical hole 6 on the first nut 2.
The working principle of the utility model is as follows: according to the utility model, the elastic sleeve 4 on the first nut 2 is clamped with the annular chute 7 on the second nut 3, so that the first nut 2 and the second nut 3 form a relatively rotatable but inseparable integrated piece, and meanwhile, the conical sleeve 8 on the second nut 3 is tightened through the conical hole 6 on the first nut 2, so that the conical sleeve 8 tightly embraces the screw rod, the thread gap between the conical sleeve 8 and the screw rod is eliminated, and the second nut 3 cannot rotate or move in the use process, and even under the external forces such as vibration and the like, the nut or the screw can be kept in a fixed state through the mutual restraining action of the integrated piece, so that the purpose of anti-loose locking is achieved. The utility model is convenient to install and dismantle, does not cause any damage to the disassembled screw, gasket and nut, and can still be used continuously, thus saving the cost; meanwhile, the screw and the nut can be separately and independently screwed, so that the installation is convenient, the working efficiency can be improved, and the universality is greatly improved. Therefore, the anti-loosening locking device has the advantages of good anti-loosening locking effect, simple structure, convenience in use, low manufacturing cost and convenience for batch production.

Claims (5)

1. The utility model provides an interlocking type anti-loosening bolt subassembly, includes screw (1) and first nut (2) and second nut (3) with the screw rod threaded connection of screw (1), its characterized in that: be provided with on the terminal surface of first nut (2) and be connected elastic sleeve (4) as an organic whole with first nut (2), set up on the terminal surface of second nut (3) with annular chute (7) of elastic sleeve (4) block on first nut (2), be provided with taper sleeve (8) in the inboard of annular chute (7), and the end that stretches out of taper sleeve (8) is higher than the terminal surface of second nut (3), the interior drill way portion of first nut (2) is provided with tapered hole (6) with taper sleeve (8) complex.
2. The interlocking anti-loosening bolt assembly according to claim 1, wherein: and the inner hole of the conical sleeve (8) is internally provided with a thread matched with the screw (1).
3. The interlocking anti-loosening bolt assembly according to claim 1, wherein: the included angle between the annular chute (7) and the vertical plane is 1-3 degrees.
4. The interlocking anti-loosening bolt assembly according to claim 1, wherein: expansion joints (5) are uniformly arranged on the circumference of the elastic sleeve (4).
5. The interlocking anti-loosening bolt assembly according to claim 1, wherein: the depth of the annular chute (7) is greater than the height of the elastic sleeve (4) and less than the height of the conical sleeve (8).
CN202122743168.XU 2021-11-10 2021-11-10 Interlocking type anti-loosening bolt assembly Active CN216382179U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122743168.XU CN216382179U (en) 2021-11-10 2021-11-10 Interlocking type anti-loosening bolt assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122743168.XU CN216382179U (en) 2021-11-10 2021-11-10 Interlocking type anti-loosening bolt assembly

Publications (1)

Publication Number Publication Date
CN216382179U true CN216382179U (en) 2022-04-26

Family

ID=81252349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122743168.XU Active CN216382179U (en) 2021-11-10 2021-11-10 Interlocking type anti-loosening bolt assembly

Country Status (1)

Country Link
CN (1) CN216382179U (en)

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Effective date of registration: 20220601

Address after: 550002 No. 1-24-4, floor 24, unit 1, building 4, phase II, Guizhou Fuyuan pharmaceutical logistics park, No. 22, Fuyuan North Road, Youzha street, Nanming District, Guiyang City, Guizhou Province (Youzha Office)

Patentee after: Guizhou Xianlong Fastener Co.,Ltd.

Address before: 550001 No. 19, floor 4, unit 2, building 12, No. 101, Youzha street, Nanming District, Guiyang City, Guizhou Province

Patentee before: Xu Zhubin