Anti-disassembly one-way nut
By setting pawls and ratchets on the hexagonal block of the nut, the anti-tearing one-way nut is designed with one-way rotation, which solves the problem that existing nuts cannot prevent equipment theft, and improves the anti-tearing function of the nut and the safety of use.
Patent Information
- Application Number
- CN202422434331.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The existing nuts cannot effectively prevent theft of equipment due to the relatively simple disassembly after fixing valuable equipment.
An anti-tearing one-way nut is designed. By setting pawls and ratchets on the hexagonal block, the one-way rotation of pawls and ratchets makes it possible to tighten when turning clockwise, but cannot be loose when turning counterclockwise.
The anti-tearing function of nuts is realized, which improves the safety of equipment use and prevents equipment theft.
Smart Images
Figure CN223035477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuts, in particular to an anti-disassembly one-way nut. Background Technique
[0002] A nut is a part that is screwed together with a bolt or screw rod to play a fastening role. A nut is a part that tightly connects mechanical equipment. Through the internal thread, nuts and bolts of the same specification can be connected together;
[0003] Nowadays, the use function of nuts on the market is relatively single. When the nut fixes valuable equipment, due to the relatively simple disassembly of traditional nuts, it cannot play an anti-theft effect on the fixed equipment. In view of the above situation, technological innovation is carried out on the basis of existing nuts. Content of the Utility Model
[0004] The purpose of the utility model is to provide an anti-disassembly one-way nut to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: an anti-disassembly one-way nut, including:
[0006] A hexagonal block, an installation hole is penetrated through the top of the hexagonal block, an annular installation groove is opened on the inner side wall of the installation hole, an internal thread sleeve is arranged in the installation hole, an annular groove is opened on the outer side wall of the internal thread sleeve, a ratchet wheel is arranged in the annular groove, and an anti-disassembly component is placed in the annular installation groove of the hexagonal block.
[0007] Preferably, the anti-disassembly component includes a pawl, a through hole is penetrated through the top of the pawl, a support shaft is arranged in the through hole, and a torsion spring is arranged between the support shaft and the through hole.
[0008] Preferably, the support shafts are uniformly arranged in the annular installation groove of the hexagonal block, the pawls are uniformly distributed in an annular array on the outer ring of the ratchet wheel and are engaged with the ratchet wheel.
[0009] Preferably, a group of limit rings are arranged on both the upper and lower sides of the inner side wall of the installation hole of the hexagonal block, a group of annular limit grooves are opened on both the upper and lower sides of the outer side wall of the internal thread sleeve, and the limit rings are arranged in the annular limit grooves.
[0010] Preferably, a pressure ring is arranged at the bottom of the internal thread sleeve, and the pressure ring is located below the hexagonal block.
[0011] Preferably, anti-slip teeth are uniformly arranged at the bottom of the pressure ring, and the top of the internal thread sleeve is flush with the top of the hexagonal block.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] In this utility model, when the hexagonal block is rotated clockwise, the hexagonal block drives the internal thread sleeve to rotate by means of the ratchet pawl pressing against the ratchet wheel, and then the internal thread sleeve is screwed with the external screw rod, so that the device realizes the function of a nut. When the device is screwed with the external screw rod, it will drive the pressure ring and the anti-slip teeth to rotate downward. The anti-slip teeth can increase the friction between the pressure ring and the object plane, thereby improving the screwing stability of the device.
[0014] When the hexagonal block is rotated counterclockwise, due to the one-way rotation property of the ratchet pawl and the ratchet wheel, the rotation of the hexagonal block cannot drive the internal thread sleeve to rotate, so that the device has one-way anti-disassembly rotation property, thereby improving the safety of use of the device. Description of the Drawings
[0015] Figure 1 is a structural schematic diagram of this utility model;
[0016] Figure 2 is a front cross-sectional view of this utility model;
[0017] Figure 3 is a top cross-sectional view of this utility model.
[0018] In the figure: 1. Hexagonal block; 11. Pressure ring; 12. Anti-slip teeth; 13. Internal thread sleeve; 14. Limit ring; 15. Support shaft; 16. Ratchet pawl; 17. Torsion spring; 18. Ratchet wheel. Detailed Embodiment
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-3, a tamper-proof one-way nut, comprising a hexagonal block 1. An installation hole is penetratingly formed at the top of the hexagonal block 1. An annular installation groove is formed in the inner side wall of the installation hole. An internal thread sleeve 13 is rotatably arranged in the installation hole. An annular groove is formed in the outer side wall of the internal thread sleeve 13. A ratchet 18 is fixedly arranged in the annular groove. A tamper-proof component is placed in the annular installation groove of the hexagonal block 1. The tamper-proof component comprises a pawl 16. A through hole is penetratingly formed at the top of the pawl 16. A support shaft 15 is rotatably arranged in the through hole. A torsion spring 17 is fixedly arranged between the support shaft 15 and the through hole. The support shafts 15 are uniformly and fixedly arranged in the annular installation groove of the hexagonal block 1. The pawls 16 are uniformly distributed in an annular array on the outer ring of the ratchet 18 and are engaged with the ratchet 18. A group of limiting rings 14 are fixedly arranged on both the upper and lower sides of the inner side wall of the installation hole of the hexagonal block 1. A group of annular limiting grooves are formed on both the upper and lower sides of the outer side wall of the internal thread sleeve 13. The limiting rings 14 are rotatably arranged in the annular limiting grooves. The internal thread sleeve 13 is supported by the limiting rings 14 to rotate in the installation hole of the hexagonal block 1. A pressing ring 11 is fixedly arranged at the bottom of the internal thread sleeve 13. The pressing ring 11 is located below the hexagonal block 1. Anti-slip teeth 12 are uniformly fixedly arranged at the bottom of the pressing ring 11. The top of the internal thread sleeve 13 is flush with the top of the hexagonal block 1.
[0021] Working principle: The internal thread sleeve 13 is supported by the limiting rings 14 to rotate in the installation hole of the hexagonal block 1. The torsion spring 17 uses its own elastic force to drive the pawl 16 to engage with the ratchet 18. At this time, when the hexagonal block 1 is rotated clockwise, the hexagonal block 1 will rotate by pressing against the ratchet 18 through the pawl 16. Thus, the ratchet 18 drives the internal thread sleeve 13 to rotate, and further the internal thread sleeve 13 is screwed with an external screw rod, so that the device realizes the function of a nut. When the device is screwed with the external screw rod, it will drive the pressing ring 11 and the anti-slip teeth 12 to rotate downward. The friction between the pressing ring 11 and the object plane can be increased through the anti-slip teeth 12, and further the screwing stability of the device is improved. When the hexagonal block 1 is rotated counterclockwise, due to the one-way rotation property of the pawl 16 and the ratchet 18, the rotation of the hexagonal block 1 cannot drive the internal thread sleeve 13 to rotate. Thus, the device has the property of tamper-proof one-way rotation, and further the use safety of the device is improved.
Claims
1. A disassembly-resistant one-way nut, characterized in that: include: A hexagonal block (1), wherein a mounting hole is formed through the top of the hexagonal block (1), an annular mounting groove is formed on the inner wall of the mounting hole, an internally threaded sleeve (13) is provided in the mounting hole, an annular groove is formed on the outer wall of the internally threaded sleeve (13), a ratchet (18) is provided in the annular groove, and an anti-disassembly component is placed in the annular mounting groove of the hexagonal block (1).
2. The anti-disassembly one-way nut according to claim 1, characterized in that: The anti-disassembly component comprises a ratchet (16), a through hole is formed through the top of the ratchet (16), a support shaft (15) is arranged in the through hole, and a torsion spring (17) is arranged between the support shaft (15) and the through hole.
3. The anti-disassembly one-way nut according to claim 2, characterized in that: The support shaft (15) is evenly arranged in the annular mounting groove of the hexagonal block (1), and the pawls (16) are evenly distributed on the outer ring of the ratchet (18) in an annular array and mesh with the ratchet (18).
4. The anti-disassembly one-way nut according to claim 1, characterized in that: A group of limiting rings (14) are arranged on both upper and lower sides of the inner side wall of the mounting hole of the hexagonal block (1), and a group of annular limiting grooves are opened on both upper and lower sides of the outer side wall of the internal threaded sleeve (13), and the limiting rings (14) are arranged in the annular limiting grooves.
5. The anti-disassembly one-way nut according to claim 1, characterized in that: A pressure ring (11) is provided at the bottom of the internal threaded sleeve (13), and the pressure ring (11) is located below the hexagonal block (1).
6. The anti-disassembly one-way nut according to claim 5, characterized in that: The bottom of the pressure ring (11) is evenly provided with anti-slip teeth (12), and the top of the internal thread sleeve (13) is flush with the top of the hexagonal block (1).