An anti-loosening bolt
By installing abutment rods and abutment blocks on the bolts and using a fixing mechanism to securely connect them to the connecting blocks, the problems of bolt loosening and thread stripping are solved, thus improving the stability and safety of the bolts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU HONGYU MASCH MFG CO LTD
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-03
AI Technical Summary
Existing bolts are prone to loosening and stripping during use, which reduces safety during use.
An anti-loosening bolt was designed by installing an abutment rod and an abutment block on the bolt body, using a damping shaft to make the abutment block abut against the bottom of the nut, and fixing it to the connecting block and bolt body through a fixing mechanism to enhance stability.
It effectively prevents bolts from loosening and stripping, enhancing the stability and safety of the bolts.
Smart Images

Figure CN224453344U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bolt technology, and in particular relates to an anti-loosening bolt. Background Technology
[0002] A bolt is a common mechanical fastener consisting of a head and a shank (a cylinder with external threads). It is usually used in conjunction with a nut to fasten two parts with through holes.
[0003] During the use of bolts, they may loosen or come loose due to various reasons, which reduces the safety of use. Utility Model Content
[0004] This utility model provides an anti-loosening bolt, which aims to solve the problem of loosening and stripping of screws currently used in the prior art.
[0005] To solve the above problems, this utility model is implemented as follows: an anti-loosening bolt includes: a bolt body with a nut threaded onto it; a mounting plate assembled at the bottom of the bolt body, the mounting plate having an abutment rod for abutting the bolt body at its mounting position; and an abutment block rotatably mounted on the abutment rod via a damping shaft for abutting the bottom of the nut.
[0006] Preferably, a connecting block is fixedly installed on the mounting plate, a connecting groove is provided at the bottom end of the bolt body, the connecting groove and the connecting block are adapted to be connected, and a fixing mechanism is provided on the bolt body and the connecting block, the fixing mechanism being used to fix the connecting block and the bolt body together.
[0007] Preferably, the fixing mechanism includes: a mounting cavity formed on the connecting block, a spring disposed in the mounting cavity, and a stop block disposed in the mounting cavity for compressing the spring; a locking block slidably mounted on the connecting block, one end of the locking block being fixedly connected to the stop block; a slot formed on the bolt body, the slot being adapted to the locking block; and an operating rod fixedly mounted on the stop block, the operating rod being used by the operator to move the stop block.
[0008] Preferably, a telescopic rod is provided inside the mounting cavity, the telescopic rod is located inside the spring, and a clearance opening is provided on the connecting block for accommodating the movement of the operating rod.
[0009] Preferably, a connecting sleeve is fixedly installed at the bottom of the abutment rod, a connecting rod is provided below the connecting sleeve, and a threaded block is fixedly installed at the top of the connecting rod, with the threaded block and the connecting sleeve being threadedly connected.
[0010] Preferably, a positioning frame is fixedly installed on the top of the mounting plate, and a positioning block is fixedly installed on the bottom of the connecting rod. Both the positioning block and the positioning frame are rectangular and are adapted to each other.
[0011] Preferably, both the abutting rod and the abutting block are provided with friction pads on their tops, and the friction pads are made of rubber.
[0012] Compared with related technologies, the anti-loosening bolt provided by this utility model has the following beneficial effects:
[0013] Compared with existing technologies, the anti-loosening bolts provided by this solution can effectively prevent loosening and unraveling, thereby enhancing the overall stability and safety during use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of an anti-loosening bolt provided by this utility model;
[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;
[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;
[0017] Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure;
[0018] Figure 5 for Figure 4 An enlarged structural diagram of section C shown in the figure;
[0019] Figure 6 for Figure 2 The diagram shows an enlarged view of part D.
[0020] Reference numerals: 1. Bolt body; 2. Nut; 3. Mounting plate; 4. Abutment rod; 5. Abutment block; 6. Connecting block; 7. Connecting groove; 8. Mounting cavity; 9. Spring; 10. Stop block; 11. Locking block; 12. Locking groove; 13. Operating lever; 14. Telescopic rod; 15. Connecting sleeve; 16. Connecting rod; 17. Threaded block; 18. Positioning block; 19. Positioning frame. Detailed Implementation
[0021] Unless otherwise defined, 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 application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0023] This utility model embodiment provides an anti-loosening bolt, such as Figure 1-6 As shown, the anti-loosening bolt includes: a bolt body 1, on which a nut 2 is threadedly installed; a mounting plate 3 assembled at the bottom end of the bolt body 1, on which an abutment rod 4 is provided, the abutment rod 4 being used to abut the installation position of the bolt body 1; and an abutment block 5 rotatably mounted on the abutment rod 4 via a damping shaft, the abutment block 5 being used to abut the bottom of the nut 2.
[0024] In this embodiment, when using the bolt body 1, the bolt body 1 is installed in the corresponding position, and then the nut 2 is threaded onto the bolt body 1. At this time, the bolt body 1 is already in the installed position. Then, the worker installs the mounting plate 3 onto the bolt body 1, and the abutment rod 4 abuts against the installation position of the bolt body 1. The abutment rod 4 abuts against the installation position of the bolt body 1, so that the bolt body 1 cannot move upward. The abutment block 5 abuts against the bottom end of the nut 2, so that the nut 2 cannot be displaced on the bolt body 1. This can effectively prevent the bolt body 1 from loosening and unraveling, and enhance the overall stability and safety during use.
[0025] In a further preferred embodiment of this utility model, a connecting block 6 is fixedly installed on the mounting plate 3, and a connecting groove 7 is provided at the bottom end of the bolt body 1. The connecting groove 7 and the connecting block 6 are adapted to be connected. A fixing mechanism is provided on the bolt body 1 and the connecting block 6. The fixing mechanism is used to fix the connecting block 6 and the bolt body 1.
[0026] In this embodiment, by setting the connecting block 6 to be adapted to the connecting groove 7, and using the fixing mechanism to fix the connecting block 6 and the bolt body 1, the mounting plate 3 can be stably installed at the bottom of the bolt body 1.
[0027] In a further preferred embodiment of this utility model, the fixing mechanism includes: a mounting cavity 8 formed on the connecting block 6, a spring 9 disposed in the mounting cavity 8, and a stop block 10 for compressing the spring 9 disposed in the mounting cavity 8; a locking block 11 slidably mounted on the connecting block 6, one end of the locking block 11 being fixedly connected to the stop block 10; a locking groove 12 formed on the bolt body 1, the locking groove 12 being adapted to the locking block 11; and an operating rod 13 fixedly mounted on the stop block 10, the operating rod 13 being used by the operator to move the stop block 10.
[0028] In this embodiment, during installation, the operator can move the stop block 10 using the operating lever 13. The stop block 10 compresses the spring 9 and causes the locking block 11 to retract into the mounting cavity 8. Then, the connecting block 6 on the mounting plate 3 is aligned with the connecting groove 7 at the bottom of the bolt body 1. The operator then releases the operating lever 13, the compressed spring 9 returns to its original position, and the locking block 11 and the groove 12 are connected accordingly, thereby fixing the connecting block 6 and the bolt body 1. At this time, the abutment rod 4 is used to abut the bolt body 1 at the installation position. The position of the abutment block 5, which is rotated on the abutment rod 4 via the damping shaft, is adjusted so that it abuts the bottom of the nut 2.
[0029] In a further preferred embodiment of the present invention, a telescopic rod 14 is provided in the mounting cavity 8, the telescopic rod 14 is located inside the spring 9, and an avoidance opening is provided on the connecting block 6, the avoidance opening being used to avoid the movement of the operating rod 13.
[0030] In this embodiment, the telescopic rod 14 is located inside the spring 9 and plays a guiding role in the movement of the locking block 11 and the compression and recovery deformation of the spring 9, ensuring the stability of the movement direction of the stop block 10 and the locking block 11.
[0031] In a further preferred embodiment of the present invention, a connecting sleeve 15 is fixedly installed at the bottom of the abutting rod 4, a connecting rod 16 is provided below the connecting sleeve 15, and a threaded block 17 is fixedly installed at the top of the connecting rod 16, and the threaded block 17 and the connecting sleeve 15 are threadedly connected.
[0032] In this embodiment, during the use of the abutment rod 4 and the abutment block 5, the positions of the abutment rod 4 and the abutment block 5 need to be adjusted according to the position of the nut 2 on the bolt body 1. When adjustment is needed, the connecting sleeve 15 and the threaded block 17 are rotated relative to each other, thereby adjusting the relative positions of the connecting rod 16 and the connecting sleeve 15. This facilitates the adjustment of the positions of the abutment rod 4 and the abutment block 5. At the same time, when the nut 2 is installed on the bolt body 1, the nut 2 will abut against the bottom of the installation position of the bolt body 1. Therefore, the distance between the bottom of the nut 2 and the bottom of the installation position of the bolt body 1 is fixed. Thus, the abutment rod 4 and the abutment block 5 can meet the abutment requirements of the installation position of the bolt body 1 and the abutment requirements of the bottom of the nut 2.
[0033] In a further preferred embodiment of the present invention, a positioning frame 19 is fixedly installed on the top of the mounting plate 3, and a positioning block 18 is fixedly installed on the bottom of the connecting rod 16. Both the positioning block 18 and the positioning frame 19 are rectangular and are adapted to be connected.
[0034] In this embodiment, during use, the positioning block 18 and the positioning frame 19 are aligned so that the connecting rod 16 and the mounting plate 3 can be connected accordingly. Furthermore, since both the positioning block 18 and the positioning frame 19 are rectangular, the problem of rotational displacement of the connecting rod 16 can be avoided.
[0035] In a further preferred embodiment of this utility model, friction pads are provided on the top of both the abutting rod 4 and the abutting block 5, and the friction pads are made of rubber.
[0036] In this embodiment, the friction pad can improve the stability of the contact rod 4 and the contact block 5 during the contact process.
[0037] In summary, compared with related technologies, when using the bolt body 1, the bolt body 1 is installed in the corresponding position, and then the nut 2 is threaded onto the bolt body 1. At this time, the bolt body 1 is already in the installed position. Then, the worker installs the mounting plate 3 onto the bolt body 1, and the abutment rod 4 abuts against the installation position of the bolt body 1. The abutment rod 4 abuts against the installation position of the bolt body 1, so that the bolt body 1 cannot move upward. The abutment block 5 abuts against the bottom end of the nut 2, so that the nut 2 cannot be displaced on the bolt body 1. This can effectively prevent the bolt body 1 from loosening and unraveling, and enhance the overall stability and safety during use.
[0038] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. An anti-loosening bolt, characterized by, include: A bolt body, on which a nut is threadedly mounted; A mounting plate is assembled at the bottom end of the bolt body, and an abutment rod is provided on the mounting plate. The abutment rod is used to abut against the installation position of the bolt body. The abutment block, mounted on the abutment rod, is rotated via a damping shaft. The abutment block is used to abut the bottom of the nut. A connecting block is fixedly installed on the mounting plate. A connecting groove is provided at the bottom end of the bolt body. The connecting groove and the connecting block are adapted to be connected. A fixing mechanism is provided on the bolt body and the connecting block. The fixing mechanism is used to fix the connecting block and the bolt body in place. The fixing mechanism includes: A mounting cavity is formed on the connecting block, a spring is provided in the mounting cavity, and a stop block for compressing the spring is provided in the mounting cavity; A locking block is slidably mounted on the connecting block, and one end of the locking block is fixedly connected to the stop block; A slot is provided on the bolt body, and the slot and the locking block are adapted to be connected. An operating lever is fixedly installed on the stop block, and the operating lever is used by the operator to move the stop block.
2. The anti-loosening bolt of claim 1, wherein A telescopic rod is provided inside the mounting cavity. The telescopic rod is located inside the spring. An avoidance opening is provided on the connecting block. The avoidance opening is used to avoid the movement of the operating rod.
3. The anti-loosening bolt of claim 1, wherein A connecting sleeve is fixedly installed at the bottom of the abutment rod, a connecting rod is provided below the connecting sleeve, and a threaded block is fixedly installed at the top of the connecting rod. The threaded block and the connecting sleeve are threadedly connected.
4. The anti-loosening bolt of claim 3, wherein A positioning frame is fixedly installed on the top of the mounting plate, and a positioning block is fixedly installed on the bottom of the connecting rod. Both the positioning block and the positioning frame are rectangular and are adapted to each other.
5. The anti-loosening bolt of claim 1, wherein Both the abutting rod and the abutting block are provided with friction pads on their tops, and the friction pads are made of rubber.