Anti-loose hardware screw fastener
By introducing limit and rotating components into the hardware screw fasteners, combined with the gasket and hexagonal groove, the problem of screw loose under vibration or vibration is solved, achieving higher stability and installation ease.
Patent Information
- Application Number
- CN202421192319.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Existing hardware screws are prone to loosening when they are vibrating or vibrating. Although the use of gaskets can provide a certain preventive effect, there is still a risk of loosening at high vibration frequencies.
An anti-loose hardware screw fastener including a screw, a fixing nut and a limiting nut is designed. By installing anti-detachment and rotating components on the outside of the screw, the limiting screw is used to use the limiting sleeve, tooth and hinge structure to make the limiting screw The cap is limited to the outside of the screw, preventing loosening and falling off, and improving the firmness of the screw through the gasket and hexagonal grooves.
It effectively avoids loosening and falling off of the screw and limiting nut, improves the stability and firmness of the screw, and can easily rotate the screw in the absence of tools.
Smart Images
Figure CN222277169U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw fasteners, in particular to an anti-loosening hardware screw fastener. Background Art
[0002] Screws are tools that use the physical and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually fasten objects and parts. Screws are commonly found in all kinds of life. Hardware screw fasteners that are resistant to falling and loosening are a type of fastening tool that has a stable connection and is not easy to fall off.
[0003] At present, in order to tighten the screws, various gaskets are generally set on the outside of the screw. Although the gaskets can prevent the screws from loosening to a certain extent, the pressure provided by the gaskets on the screws is limited. When the screws are vibrated or the vibration frequency is high, there is still a risk of the screws loosening even if gaskets are used. Utility Model Content
[0004] The utility model aims to provide a loose-proof hardware screw fastener to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an anti-loosening hardware screw fastener, comprising a screw rod, and also comprising:
[0006] A fixing nut and a limiting nut are arranged on the outside of the screw rod, and an anti-dropping component is arranged on the outside of the limiting nut to prevent the limiting nut from falling off;
[0007] A rotating assembly is arranged outside the fixed nut and is used to drive the screw to rotate.
[0008] Preferably, the anti-slip assembly comprises a limiting sleeve arranged on the outside of the screw rod, the inner ring of the limiting nut is provided with a boss, and the outer sides of the limiting sleeve and the boss are both provided with teeth.
[0009] Preferably, a limiting groove is provided on the outer side of the screw rod, and a limiting block is fixedly connected to the inner wall of the limiting sleeve.
[0010] Preferably, the internal thread connection of the limit block is provided with a limit bolt.
[0011] Preferably, the rotating assembly includes two clamping plates symmetrically arranged on the outside of the fixing nut, the two clamping plates are rotatably connected by a hinge, a screw sleeve is arranged on the outside of the clamping plate, a fixing bolt is arranged inside the screw sleeve, and a rotating rod is arranged on the outside of the clamping plate.
[0012] Preferably, a gasket is provided on the outer side of the screw rod, and a hexagonal groove is provided inside the fixing nut.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] When an object is installed by using a screw in the utility model, the screw is first passed through the object, and the limiting nut is installed on the screw from the bottom of the screw. After the limiting nut is installed in place, the limiting block on the limiting sleeve is inserted into the limiting groove on the screw, and the limiting sleeve is pushed upward so that the teeth inside the limiting sleeve are meshed and engaged with the teeth on the limiting nut, so that the limiting nut can be limited to the outside of the screw, effectively preventing the screw and the limiting nut from loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of the anti-loosening hardware screw fastener provided by the utility model;
[0016] Figure 2 Another structural view of the screw provided by the utility model;
[0017] Figure 3 A schematic diagram of the internal structure of the limiting nut provided by the utility model;
[0018] Figure 4 A schematic diagram of the anti-slip assembly structure provided by the utility model;
[0019] Figure 5 A schematic diagram of the structure of the rotating assembly provided by the utility model;
[0020] Figure 6 This is a schematic structural diagram of the rotating assembly provided by the utility model from another perspective.
[0021] In the figure: 1, screw rod; 2, fixing nut; 3, limiting nut; 4, anti-slip assembly; 401, limiting sleeve; 402, boss; 403, teeth; 5, limiting groove; 6, limiting block; 7, rotating assembly; 701, clamping plate; 702, hinge; 703, screw sleeve; 704, fixing bolt; 705, rotating rod; 8, limiting bolt; 9, gasket; 10, hexagonal groove. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-6As shown, a hardware screw fastener for preventing loosening includes a screw rod 1, and also includes: a fixed nut 2 and a limiting nut 3 arranged on the outside of the screw rod 1, the fixed nut 2 is welded to the top of the screw rod 1, the limiting nut 3 is threadedly connected to the outside of the screw rod 1, and an anti-falling component 4 is arranged on the outside of the limiting nut 3 to prevent the limiting nut 3 from falling off; the limiting nut 3 is limited to the outside of the screw rod 1 by arranging the anti-falling component 4 to prevent the limiting nut 3 from falling off due to vibration, and a rotating component 7 is arranged on the outside of the fixed nut 2 to drive the screw rod 1 to rotate. By arranging the rotating component 7, the screw 1 can be rotated inconveniently without using tools.
[0024] The anti-slip assembly 4 includes a limiting sleeve 401 arranged on the outside of the screw 1, the limiting sleeve 401 is sleeved on the outside of the screw 1, the inner ring of the limiting nut 3 is provided with a boss 402, the boss 402 is welded to the inside of the limiting nut 3, and the outer side of the limiting sleeve 401 and the outer side of the boss 402 are both provided with teeth 403, and the two groups of teeth 403 can mesh with each other.
[0025] A limiting groove 5 is provided on the outer side of the screw 1. There are two groups of limiting grooves 5, which are symmetrically provided on the outer side of the screw 1. The inner wall of the limiting sleeve 401 is fixedly connected to the limiting block 6. The limiting block 6 is welded inside the limiting sleeve 401 and is adapted to the limiting groove 5. The limiting block 6 is inserted into the limiting groove 5, and the limiting sleeve 401 is installed on the outer side of the screw 1; the internal thread of the limiting block 6 is connected to the limiting bolt 8. After the limiting sleeve 401 is moved into place, the limiting bolt 8 is installed to the inside of the limiting block 6 and clamped with the inner wall of the limiting groove 5 to prevent the limiting sleeve 401 from slipping.
[0026] The rotating assembly 7 includes two clamping plates 701 symmetrically arranged on the outside of the fixing nut 2, the two clamping plates 701 are rotatably connected by a hinge 702, and the two clamping plates 701 can be clamped on the outside of the fixing nut 2 after being separated by the hinge 702, a screw sleeve 703 is arranged on the outside of the clamping plate 701, and the screw sleeve 703 is welded at the opening of the two clamping plates 701, and a fixing bolt 704 is arranged inside the screw sleeve 703, and the fixing bolt 704 is threadedly connected inside the screw sleeve 703, and a rotating rod 705 is arranged on the outside of the clamping plate 701, and the two rotating rods 705 are symmetrically welded on the outside of the two clamping plates 701. After the clamping plate 701 is clamped on the fixing nut 2, the fixing bolt 704 and the screw sleeve 703 are used to limit the two clamping plates 701 on the outside of the fixing nut 2, and then the fixing nut 2 is rotated by the rotating rod 705, so that the screw 1 can be installed in the absence of tools.
[0027] A gasket 9 is provided on the outside of the screw rod 1. The gasket 9 is sleeved on the outside of the screw rod 1 and is located between the fixing nut 2 and the limiting nut 3. A hexagonal groove 10 is provided inside the fixing nut 2. The hexagonal groove 10 can accommodate a hexagonal wrench. The gasket 9 is provided between the fixing nut 2 and the limiting nut 3 to improve the firmness of the screw rod 1. By providing the hexagonal groove 10, the installation method of the screw rod 1 is increased.
[0028] Working principle: When using the screw 1 to install an object, first pass the screw 1 through the object, and then install the limiting nut 3 from the bottom of the screw 1 onto the screw 1. After the limiting nut 3 is in place, insert the limiting block 6 on the limiting sleeve 401 into the limiting groove 5 on the screw 1, and push the limiting sleeve 401 upward so that the teeth 403 inside it engage with the teeth 403 on the limiting nut 3, so that the limiting nut 3 can be limited to the outside of the screw 1, effectively preventing the screw 1 and the limiting nut 3 from loosening or falling off.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0030] Although the 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 metal screw fastener for preventing loosening, comprising a screw rod (1), characterized in that: Also includes: A fixing nut (2) and a limiting nut (3) are arranged on the outside of the screw rod (1), and an anti-falling component (4) is arranged on the outside of the limiting nut (3) to prevent the limiting nut (3) from falling off; A rotating assembly (7) is arranged outside the fixed nut (2) and is used to drive the screw rod (1) to rotate.
2. The anti-loosening hardware screw fastener according to claim 1, characterized in that: The anti-slip assembly (4) comprises a limiting sleeve (401) arranged on the outside of the screw rod (1), the inner ring of the limiting nut (3) is provided with a boss (402), and the outer sides of the limiting sleeve (401) and the boss (402) are both provided with teeth (403).
3. The anti-loosening hardware screw fastener according to claim 2, characterized in that: A limiting groove (5) is provided on the outer side of the screw rod (1), and a limiting block (6) is fixedly connected to the inner wall of the limiting sleeve (401).
4. The anti-loosening hardware screw fastener according to claim 3, characterized in that: The internal thread of the limit block (6) is connected with a limit bolt (8).
5. The anti-loosening hardware screw fastener according to claim 1, characterized in that: The rotating assembly (7) comprises two clamping plates (701) symmetrically arranged on the outside of the fixing nut (2), the two clamping plates (701) are rotatably connected via a hinge (702), a screw sleeve (703) is arranged on the outside of the clamping plate (701), a fixing bolt (704) is arranged inside the screw sleeve (703), and a rotating rod (705) is arranged on the outside of the clamping plate (701).
6. The anti-loosening hardware screw fastener according to claim 1, characterized in that: A gasket (9) is arranged on the outer side of the screw rod (1), and a hexagonal groove (10) is arranged inside the fixing nut (2).