CN219605791U - Bolt assembly with anti-loosening function - Google Patents
Bolt assembly with anti-loosening function Download PDFInfo
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- CN219605791U CN219605791U CN202320562518.9U CN202320562518U CN219605791U CN 219605791 U CN219605791 U CN 219605791U CN 202320562518 U CN202320562518 U CN 202320562518U CN 219605791 U CN219605791 U CN 219605791U
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- cylinder
- screw rod
- rod
- thread
- blind hole
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- Bolts, Nuts, And Washers (AREA)
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Abstract
The utility model relates to the technical field of fasteners, in particular to a bolt assembly with a locking function, which comprises: the screw rod and the hexagonal cylinder connected to one end of the screw rod, the screw rod is connected with a nut in a threaded manner, one end of the screw rod far away from the hexagonal cylinder is concentrically connected with a cylinder, the outer diameter of the cylinder is smaller than that of the screw rod, and the outer circumferential surface of the cylinder is provided with a stop thread with the opposite direction to the screw thread on the screw rod; the end face of the nut is provided with a fixed blind hole and further comprises a locking rod assembly, one end of the locking rod assembly stretches into the fixed blind hole, and the other end of the locking rod assembly stretches into a thread groove of the stop thread. Through the mode, the bolt component with the anti-loosening function solves the problem of poor anti-loosening effect.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a bolt assembly with a locking function.
Background
The bolt is widely applied to daily life or mechanical equipment, is a most basic connecting piece, and is screwed and disassembled through a hexagonal wrench. The bolts are usually assembled with nuts, flat pads, and spring washers, which act as a locking effect on the bolts.
Aiming at the related technology, the inventor finds that on some devices with large vibration amplitude, only bolts, flat pads, elastic pads and nuts are used for fastening and connecting parts with large vibration amplitude, and after the devices are used for a long time, the bolts on the devices are easy to loosen and fall off, so that important parts on the devices are damaged, and safety accidents are caused.
Disclosure of Invention
The utility model mainly solves the technical problem of providing a bolt assembly with a locking function, and solves the problem of poor locking effect.
In order to solve the technical problems, the utility model adopts a technical scheme that: provided is a bolt assembly having a locking function, including: the screw rod and the hexagonal cylinder connected to one end of the screw rod, the screw rod is connected with a nut in a threaded manner, one end of the screw rod far away from the hexagonal cylinder is concentrically connected with a cylinder, the outer diameter of the cylinder is smaller than that of the screw rod, and the outer circumferential surface of the cylinder is provided with a stop thread with the opposite direction to the screw thread on the screw rod;
the end face of the nut is provided with a fixed blind hole and further comprises a locking rod assembly, one end of the locking rod assembly stretches into the fixed blind hole, and the other end of the locking rod assembly stretches into a thread groove of the stop thread.
Through adopting above-mentioned technical scheme, when using, the screw rod wears to establish on two spare parts of equipment needs locking, hexagon cylinder and one of them spare part contact, with nut threaded connection on the screw rod and with another spare part in close contact, reach the effect of locking, at this moment, insert the one end of lockrod subassembly in fixed blind hole, the other end stretches into in the thread groove of the locking screw thread on the cylinder, when the bolt subassembly receives great vibration to appear becoming flexible, the nut has the trend of reverse rotation, because the screw thread direction on the cylinder is opposite with the screw thread direction of locking screw thread, make locking screw thread prevent lockrod subassembly along with nut reverse rotation, and then prevent nut reverse rotation, reach locking purpose, have stronger locking effect.
The present utility model may be further configured in a preferred example to: the locking rod assembly comprises a strip-shaped plate, an elastic plate and a cylindrical limiting rod, one end of the strip-shaped plate extends into the fixed blind hole, the other end of the strip-shaped plate is connected with the elastic plate, one end of the cylindrical limiting rod is connected to the elastic plate, and the other end of the cylindrical limiting rod extends into a thread groove of the stop thread.
Through adopting above-mentioned technical scheme, through the use of elastic plate, be convenient for break the elastic plate off with fingers and thumb and make it produce recoverable deformation, can make cylindrical gag lever post stretch into in the thread groove of locking screw smoothly, improved the convenience of operation.
The present utility model may be further configured in a preferred example to: and one end of the cylindrical limiting rod, which is far away from the elastic plate, is chamfered.
Through adopting above-mentioned technical scheme, through setting up the chamfer on cylindrical gag lever post, make cylindrical gag lever post have conical portion, in the thread groove of the stop screw thread of being convenient for cylindrical gag lever post stretches into smoothly.
The present utility model may be further configured in a preferred example to: the inner wall, which is close to the hexagonal cylinder, in the fixed blind hole is in abutting connection with the end part of the strip-shaped plate.
By adopting the technical scheme, the strip-shaped plate is prevented from moving along the axial direction of the screw rod, and the anti-loosening effect is enhanced.
The present utility model may be further configured in a preferred example to: the section of the fixed blind hole is a waist-shaped hole.
Through adopting above-mentioned technical scheme, in the strip shaped plate stretched into fixed blind hole, because the cross-section of fixed blind hole is kidney-shaped hole setting to prevent the strip shaped plate to rotate in fixed blind hole, make the locking lever subassembly stretch into the axis of the directional screw rod all the time of the thread groove of locking screw thread.
The present utility model may be further configured in a preferred example to: the screw rod, the hexagonal cylinder and the cylinder are of an integrated structural design.
Through adopting above-mentioned technical scheme, simple structure, convenient preparation, structural strength is high.
In summary, the present utility model includes at least one of the following beneficial technical effects:
one end of the anti-loose rod assembly is inserted into the fixed blind hole, the other end of the anti-loose rod assembly stretches into a thread groove of the stop thread on the cylinder, when the bolt assembly is loosened due to larger vibration, the nut has a trend of reverse rotation, and the stop thread prevents the anti-loose rod assembly from reversely rotating along with the nut due to the fact that the direction of the thread on the cylinder is opposite to that of the stop thread, so that the nut is prevented from reversely rotating, the anti-loose purpose is achieved, and a strong anti-loose effect is achieved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic structural view of a preferred embodiment of a bolt assembly with anti-loosening function according to the present utility model.
Fig. 2 is a schematic view of the structure of the nut of fig. 1.
Fig. 3 is a schematic view of the structure of the locking lever assembly of fig. 1.
In the figure: 1. a screw; 2. a hexagonal cylinder; 3. a nut; 4. a cylinder; 5. fixing the blind hole; 60. a lockrod assembly; 7. a stop thread;
61. a strip-shaped plate; 62. an elastic plate; 63. a cylindrical limit rod.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
The drawings are simplified schematic views, and only the basic structure of the present utility model is schematically described, so that only the constitution related to the present utility model is shown.
Referring to fig. 1, a bolt assembly with a locking function according to the present utility model includes: screw rod 1 and connect the hexagon cylinder 2 in screw rod 1 one end, threaded connection has nut 3 on the screw rod 1, and the screw rod 1 is kept away from the one end of hexagon cylinder 2 and is connected with cylinder 4 with one heart, the external diameter of cylinder 4 is less than the external diameter of screw rod 1, hexagon cylinder 2 and cylinder 4 are integrated structural design, convenient preparation, and structural strength is high, and the outer disc of cylinder 4 is equipped with the locking screw thread 7 opposite with screw thread direction on the screw rod 1.
Referring to fig. 2 and 3, the end face of the nut 3 is provided with a fixing blind hole 5, the section of the fixing blind hole 5 is a kidney-shaped hole, the nut further comprises a locking rod assembly 60, one end of the locking rod assembly 60 extends into the fixing blind hole 5, the other end of the locking rod assembly extends into a thread groove of the stop thread 7, the locking rod assembly 60 comprises a strip-shaped plate 61, an elastic plate 62 and a cylindrical limiting rod 63, the inner wall, close to the hexagonal cylinder 2, of the fixing blind hole 5 is in abutting connection with the end portion of the strip-shaped plate 61, the elastic plate 62 is made of a spring steel plate, the strip-shaped plate 61, the elastic plate 62 and the cylindrical limiting rod 63 are fixedly connected through spot welding, one end of the strip-shaped plate 61 extends into the fixing blind hole 5, the other end of the strip-shaped plate 61 is connected with the elastic plate 62, one end of the cylindrical limiting rod 63 is connected to the elastic plate 62, the other end of the cylindrical limiting rod 63 extends into the thread groove of the stop thread 7, one end of the cylindrical limiting rod 63, which is far away from the elastic plate 62, is chamfered, and the cylindrical limiting rod 63 is easier to extend into the thread groove of the stop thread 7.
The implementation principle of the embodiment is as follows: when the locking device is used, the screw 1 is arranged on two parts to be locked on the device in a penetrating way, the hexagonal cylinder 2 is in contact with one part, the nut 3 is in threaded connection with the screw 1 and is in tight contact with the other part, the locking effect is achieved, at the moment, one end of the upper strip-shaped plate 61 of the locking rod assembly 60 is inserted into the fixed blind hole 5, the end part of the cylindrical limiting rod 63 extends into the thread groove of the stop thread 7 on the cylinder 4, when the bolt assembly is loosened due to larger vibration, the nut 3 has a tendency of reverse rotation, and the thread direction on the cylinder 4 is opposite to the thread direction of the stop thread 7, so that the locking rod assembly 60 is prevented from reversely rotating along with the nut 3, further, the locking purpose is achieved, and the locking effect is stronger.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (6)
1. A bolt assembly with anti-loosening function, comprising: the novel screw comprises a screw rod (1) and a hexagonal cylinder (2) connected to one end of the screw rod (1), wherein a nut (3) is connected to the screw rod (1) in a threaded manner, and the novel screw rod is characterized in that one end, far away from the hexagonal cylinder (2), of the screw rod (1) is concentrically connected with a cylinder (4), the outer diameter of the cylinder (4) is smaller than that of the screw rod (1), and a stop thread (7) opposite to the screw thread direction on the screw rod (1) is arranged on the outer circular surface of the cylinder (4);
the end face of the nut (3) is provided with a fixed blind hole (5), the anti-loosening rod assembly (60) is further included, one end of the anti-loosening rod assembly (60) stretches into the fixed blind hole (5), and the other end stretches into a thread groove of the stop thread (7).
2. The bolt assembly with the anti-loosening function according to claim 1, wherein the anti-loosening rod assembly (60) comprises a strip-shaped plate (61), an elastic plate (62) and a cylindrical limiting rod (63), one end of the strip-shaped plate (61) stretches into the fixed blind hole (5), the other end of the strip-shaped plate is connected with the elastic plate (62), one end of the cylindrical limiting rod (63) is connected to the elastic plate (62), and the other end of the cylindrical limiting rod stretches into a thread groove of the stop thread (7).
3. The bolt assembly with anti-loosening function according to claim 2, wherein an end of the cylindrical stopper rod (63) remote from the elastic plate (62) is chamfered.
4. Bolt assembly with anti-loose function according to claim 2, characterized in that the inner wall of the fixing blind hole (5) close to the hexagonal cylinder (2) is in abutting connection with the end of the strip-shaped plate (61).
5. Bolt assembly with anti-loose function according to claim 1, characterized in that the section of the fixing blind hole (5) is a kidney-shaped hole.
6. The bolt assembly with anti-loosening function according to claim 1, wherein the screw (1), the hexagonal cylinder (2) and the cylinder (4) are of an integrated structural design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320562518.9U CN219605791U (en) | 2023-03-21 | 2023-03-21 | Bolt assembly with anti-loosening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320562518.9U CN219605791U (en) | 2023-03-21 | 2023-03-21 | Bolt assembly with anti-loosening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219605791U true CN219605791U (en) | 2023-08-29 |
Family
ID=87738563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320562518.9U Active CN219605791U (en) | 2023-03-21 | 2023-03-21 | Bolt assembly with anti-loosening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219605791U (en) |
-
2023
- 2023-03-21 CN CN202320562518.9U patent/CN219605791U/en active Active
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