Corrosion-resistant lock bolt sleeve

Abstract

The utility model relates to the technical field of anti-loosening bolt sleeves, and discloses a corrosion-resistant anti-loosening bolt sleeve which comprises a bolt body, a main threaded sleeve is arranged on the left surface of the bolt body, a notch is formed in the upper surface of the main threaded sleeve, a spring washer is movably installed on the inner surface of the notch, and a check ring is movably installed on the inner surface of the notch. According to the anti-corrosion bolt, the bolt body, the main threaded sleeve, the groove opening, the spring washer, the check ring, the sliding plates, the sliding grooves, the anti-corrosion layer and other structures are matched, the bolt sleeve can have a certain anti-corrosion effect, the spring washer can be located at the connecting position of the bolt and the threaded sleeve, and therefore the anti-corrosion effect is achieved. And through longitudinal elastic force generated after the spring washer is flattened, screwing threads are pressed tightly, so that the using stability of the bolt and the threaded sleeve is improved, and looseness is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-loosening bolt sleeves, in particular to a corrosion-resistant anti-loosening bolt sleeve. Background Art

[0002] Bolts are a common fastener widely used in various mechanical and electrical equipment. For ordinary applications, there are no particularly strict requirements for the anti-loosening characteristics of bolts. However, for the fields of automobiles, aviation, aerospace, and nuclear power plants, many equipment or components work in a vibration environment for a long time, and the bolts and nuts are prone to loosening, which affects the normal operation of the equipment and even causes safety accidents.

[0003] Various self-locking nuts have appeared in the existing fastener industry, which have complex structures, high production costs, inconvenient installation, and unsatisfactory anti-loosening effects. In addition, the working principle of the existing self-locking nuts is to use external force to cause the thread or pitch of the nut to distort and change, so as to obtain additional pre-tightening force to achieve the purpose of anti-loosening and locking. However, this method not only increases the screw-in torque of the screw, but also the thread or pitch damaged by distortion cannot be restored, resulting in the nuts or screws after use cannot be reused, wasting resources, and for the long-term use of the bolt sleeve, it does not have a certain anti-corrosion effect, which easily causes the bolt sleeve to age and affects its use.

[0004] For this reason, we propose a corrosion-resistant anti-loosening bolt sleeve. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a corrosion-resistant anti-loosening bolt sleeve, which overcomes the deficiencies of the prior art and solves the problems in the background technology that various self-locking nuts have appeared in the existing fastener industry, which are complex in structure, high in production cost, inconvenient to install, and have unsatisfactory anti-loosening effects. In addition, the working principle of the existing self-locking nuts is to use external force to cause the thread or pitch of the nut to produce a twist change, so as to obtain an additional pre-tightening force to achieve the purpose of anti-loosening and locking. However, this method not only increases the screw-in torque of the screw, but also the thread or pitch damaged by the twist cannot be restored, resulting in the nut or screw after use cannot be reused, which wastes resources, and does not have a certain anti-corrosion effect when the bolt sleeve is used for a long time, which easily leads to aging of the bolt sleeve and affects the use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant anti-loosening bolt sleeve, comprising a bolt body, a main threaded sleeve is arranged on the left surface of the bolt body, a notch is opened on the upper surface of the main threaded sleeve, a spring washer is movably installed on the inner surface of the notch, a retaining ring is movably installed on the inner surface of the notch, a plurality of slides are fixedly connected to the inner surface of the retaining ring, a plurality of sliding grooves are opened on the inner wall of one side of the notch close to the center of the main threaded sleeve, and a corrosion-resistant layer is sprayed on the inner surface of the main threaded sleeve.

[0009] Preferably, the outer surface of the main threaded sleeve is fixedly connected to a first connecting plate, the lower surface of the main threaded sleeve is movably mounted with a plurality of connecting threaded sleeves, the outer surface of the connecting threaded sleeve is fixedly connected to a clamping plate, and the outer surface of the connecting threaded sleeve is fixedly connected to a second connecting plate.

[0010] Preferably, the bolt and the main threaded sleeve are arranged in a corresponding threaded connection, and the slide plate and the slide groove are arranged in a corresponding sliding manner.

[0011] Preferably, the retaining ring and the spring washer are arranged to correspond to the notch, and the corrosion-resistant layer is provided by epoxy spraying material.

[0012] Preferably, the connecting threaded sleeve is adapted to correspond to the main threaded sleeve, and the clamping plate is clamped to correspond to the first connecting plate and the second connecting plate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a corrosion-resistant anti-loosening bolt sleeve, which has the following beneficial effects:

[0015] 1. The corrosion-resistant anti-loosening bolt sleeve can make the bolt sleeve have a certain anti-corrosion effect through the cooperation between the bolt body, the main threaded sleeve, the notch, the spring washer, the retaining ring, the slide plate, the slide groove, the corrosion-resistant layer and other structures. The spring washer can be located at the connection between the bolt and the threaded sleeve, and the longitudinal elastic force generated by the flattening of the spring washer can be used to tighten the screwed threads, thereby increasing the stability of the bolt and the threaded sleeve and preventing loosening.

[0016] 2. The corrosion-resistant anti-loosening bolt sleeve can increase the length of the threaded sleeve according to usage requirements through the cooperation between the first connecting plate, the connecting threaded sleeve, the clamping plate, the second connecting plate and other structures, and can be paired with bolts of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the interior of the main thread sleeve notch and its related structures of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the exploded structure of the spring washer and its related structure.

[0020] In the figure: 1. bolt body; 2. main threaded sleeve; 3. notch; 4. spring washer; 5. retaining ring; 6. slide plate; 7. slide groove; 8. corrosion-resistant layer; 9. first connecting plate; 10. connecting threaded sleeve; 11. clamping plate; 12. second connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 3 A corrosion-resistant anti-loosening bolt sleeve comprises a bolt body 1, a main threaded sleeve 2 is arranged on the left surface of the bolt body 1, a slot 3 is provided on the upper surface of the main threaded sleeve 2, a spring washer 4 is movably installed on the inner surface of the slot 3, a retaining ring 5 is movably installed on the inner surface of the slot 3, a plurality of slide plates 6 are fixedly connected to the inner surface of the retaining ring 5, a plurality of sliding grooves 7 are provided on the inner wall of one side of the slot 3 close to the center of the main threaded sleeve 2, and a corrosion-resistant layer 8 is sprayed on the inner surface of the main threaded sleeve 2.

[0024] Specifically, through the coordination among structures such as the bolt body 1, the main threaded sleeve 2, the notch 3, the spring washer 4, the retaining ring 5, the slide plate 6, the slide groove 7, and the corrosion-resistant layer 8, the bolt sleeve can have a certain anti-corrosion effect. The spring washer 4 can also be located at the connection between the bolt and the threaded sleeve, and the longitudinal elastic force generated by flattening the spring washer 4 can be used to tighten the screwed threads, thereby increasing the stability of the bolt and the threaded sleeve and preventing loosening.

[0025] In this embodiment, the bolt and the main threaded sleeve 2 are connected in a corresponding threaded manner, and the slide plate 6 and the slide groove 7 are slidably arranged in a corresponding manner.

[0026] Specifically, after the retaining ring 5 is connected to the threaded sleeve by bolts, the end of the bolt is pressed against the retaining ring 5 and received in the slot 3. The retaining ring 5 can be moved horizontally by multiple slides 6 cooperating with the slide groove 7, thereby cooperating with the slot 3 to flatten the spring washer 4 horizontally.

[0027] In this embodiment: the retaining ring 5 and the spring washer 4 are arranged to correspond to the notch 3, and the corrosion-resistant layer 8 is provided by epoxy spraying material.

[0028] Specifically, epoxy spraying has good corrosion resistance, light weight, long service life, high corrosion resistance, and can effectively improve the corrosion resistance of the bolt sleeve.

[0029] Working principle: When bolts and threaded sleeves are needed, the main threaded sleeve 2 can be placed on the specified connection structure, and then the bolt body 1 and the main threaded sleeve 2 can be threadedly connected and extended, and then the retaining ring 5 is fitted on the top of the bolt body 1, and the retaining ring 5 is pushed into the groove 3 by the force of the bolt body 1. The retaining ring 5 moves horizontally in the groove 3 through multiple slides 6 and slide grooves 7, and then the spring washer 4 is flattened by the retaining ring 5 and the groove 3. When the bolt body 1 and the main threaded sleeve 2 are connected and fixed, the longitudinal elastic force generated by the flattening of the spring washer 4 can tighten the screwing threads of the bolt body 1 and the main threaded sleeve 2, thereby increasing the stability of the bolt and the threaded sleeve and preventing loosening. The corrosion resistance of the main threaded sleeve 2 can be effectively improved by the corrosion-resistant layer 8 in the main threaded sleeve 2.

[0030] Embodiment 2

[0031] See also Figure 1 Based on the first embodiment, the present invention provides a technical solution:

[0032] In this embodiment: the outer surface of the main threaded sleeve 2 is fixedly connected to the first connecting plate 9, the lower surface of the main threaded sleeve 2 is movably mounted with a plurality of connecting threaded sleeves 10, the outer surface of the connecting threaded sleeve 10 is fixedly connected to the clamping plate 11, and the outer surface of the connecting threaded sleeve 10 is fixedly connected to the second connecting plate 12.

[0033] Specifically, through the coordination among the first connecting plate 9, the connecting threaded sleeve 10, the clamping plate 11, the second connecting plate 12 and other structures, the length of the threaded sleeve can be increased according to the use requirements, and it can be used in pair with bolts of different lengths.

[0034] In this embodiment, the connecting threaded sleeve 10 is adapted to correspond to the main threaded sleeve 2 , and the clamping plate 11 is clamped to correspond to the first connecting plate 9 and the second connecting plate 12 .

[0035] Specifically, by clamping the clamping plate 11 with the first connecting plate 9, the connecting threaded sleeve 10 and the main threaded sleeve 2 can be assembled and extended, and multiple connecting threaded sleeves 10 can be spliced ​​to assemble threaded sleeves of different lengths according to needs.

[0036] Working principle: When a bolt sleeve is needed, depending on the working environment, there are certain requirements for the length of the threaded sleeve and the corresponding length of the bolt. The length of the threaded sleeve can be adjusted according to the length of the bolt to meet the connection requirements. The clamping plate 11 on the connecting threaded sleeve 10 can be clamped with the first connecting plate 9 on the main threaded sleeve 2. A connecting threaded sleeve 10 can be added, and the clamping plate 11 can be clamped with the second connecting plate 12 to increase the length of the threaded sleeve to meet the requirements of assembly with the bolt. The bolt body 1 can be connected to the threads in the main threaded sleeve 2 and the connecting threaded sleeve 10.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant anti-loosening bolt sleeve, comprising a bolt body (1), characterized in that: A main threaded sleeve (2) is arranged on the left surface of the bolt body (1), a notch (3) is provided on the upper surface of the main threaded sleeve (2), a spring washer (4) is movably mounted on the inner surface of the notch (3), a retaining ring (5) is movably mounted on the inner surface of the notch (3), a plurality of slide plates (6) are fixedly connected to the inner surface of the retaining ring (5), a plurality of slide grooves (7) are provided on an inner wall of a side of the notch (3) close to the center of the main threaded sleeve (2), and a corrosion-resistant layer (8) is sprayed on the inner surface of the main threaded sleeve (2).

2. A corrosion-resistant anti-loosening bolt sleeve according to claim 1, characterized in that: The outer surface of the main threaded sleeve (2) is fixedly connected to a first connecting plate (9), the lower surface of the main threaded sleeve (2) is movably mounted with a plurality of connecting threaded sleeves (10), the outer surface of the connecting threaded sleeve (10) is fixedly connected to a clamping plate (11), and the outer surface of the connecting threaded sleeve (10) is fixedly connected to a second connecting plate (12).

3. The corrosion-resistant anti-loosening bolt sleeve according to claim 1, characterized in that: The bolt and the main threaded sleeve (2) are arranged in a corresponding threaded connection, and the slide plate (6) and the slide groove (7) are arranged in a corresponding sliding manner.

4. The corrosion-resistant anti-loosening bolt sleeve according to claim 1, characterized in that: The retaining ring (5) and the spring washer (4) are arranged in a corresponding and adaptive manner to the notch (3), and the corrosion-resistant layer (8) is provided by using an epoxy spray material.

5. The corrosion-resistant anti-loosening bolt sleeve according to claim 2, characterized in that: The connecting threaded sleeve (10) and the main threaded sleeve (2) are arranged in a corresponding adaptive manner, and the clamping plate (11) and the first connecting plate (9) and the second connecting plate (12) are arranged in a corresponding clamping manner.

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