Hardware fastener with anti-loosening function
By setting the clamping structure of the sealing ring and wedge-shaped locking washer on the inner wall of the nut, the problem of bolts being loose in the vibrating environment is solved, and a more stable connection and a simple installation process is achieved.
Patent Information
- Application Number
- CN202421226035.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing bolts are prone to loosening in vibrating environments, resulting in unsolid connections between equipment parts. The existing solutions are cumbersome and insufficient stability.
A hardware fastener with anti-loosening function was designed. By setting a slot on the inner wall of the nut and installing a sealing ring, combining the clamping structure of the upper wedge locking gasket and the lower wedge locking gasket, it utilizes the wedge effect and serrated design. Prevent the bolt from loosening when vibrating.
Improves the stability of the connection between bolts and nuts, prevents loosening caused by long-term vibration, simplifies the installation process, and enhances the stability and wear resistance of fasteners.
Smart Images
Figure CN222277181U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hardware parts, in particular to a hardware fastener with an anti-loosening function. Background Art
[0002] Hardware fasteners are hardware parts used to fasten or connect two or more objects. They are usually made of metal, such as steel, stainless steel, aluminum, etc., and are designed in various types and specifications to suit different applications. Fasteners can be simple, such as bolts, screws, nuts and washers, or more complex structural parts such as flanges, chains, clamps, etc. In the field of engineering and construction, fasteners play a vital role because they ensure the safety and stability of structures and equipment. There are many factors to consider when choosing the right fasteners, including the strength of the material, corrosion resistance, environmental conditions, and the type of loads it is subjected to.
[0003] Since bolts are suitable for various environments, when they are in a vibrating environment, they will become loose. Because vibration is everywhere, vibration will loosen the joints, which will lead to loose connections between equipment parts and safety accidents. Existing bolts are prone to loosening and falling off due to external forces such as vibration during use. To avoid this phenomenon, double nuts, glue application, and gasket addition methods are usually used. These methods have complicated operating steps, which are not conducive to quick and convenient installation of bolts, and the stability of the bolts is not strong. When the vibration time is too long, loosening will also occur. Utility Model Content
[0004] The purpose of the utility model is to provide a hardware fastener with an anti-loosening function to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hardware fastener with anti-loosening function, including a bolt, and also including:
[0006] A top head is arranged on the top of the bolt for driving the bolt to rotate, a nut for connecting a fastening device therewith is arranged on the outer side of the bolt, a placement groove is opened on the inner wall of the nut, and a sealing ring is fixed on the inner wall of the placement groove;
[0007] An upper wedge-shaped locking washer and a lower wedge-shaped locking washer are arranged on the outer side of the bolt to prevent the bolt from loosening, and the contact surfaces of the upper wedge-shaped locking washer and the lower wedge-shaped locking washer are provided with wedge strips, and the upper wedge-shaped locking washer and the lower wedge-shaped locking washer are clamped by the wedge strips, and the top of the upper wedge-shaped locking washer and the bottom of the lower wedge-shaped locking washer are provided with serrations.
[0008] Preferably, an outer side of the bolt is provided with an external thread, and a bottom of the bolt is provided with an arc-shaped protrusion.
[0009] Preferably, an upper part and a lower part are respectively provided on the outer side of the bolt, the upper part is provided at the bottom of the lower wedge-shaped locking washer, and the lower part is provided at the top of the nut.
[0010] Preferably, the inner wall of the nut is provided with an internal thread, and the internal thread is adapted to the external thread.
[0011] Preferably, a groove is provided inside the top head, and the size of the groove is adapted to that of an internal angle wrench.
[0012] Preferably, the material of the sealing ring is set to rubber, and the size of the sealing ring is adapted to the placement groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] The utility model provides a placement groove in the nut and installs a sealing ring matched with the placement groove. When the nut is connected to the bolt, the bolt rotates to squeeze the sealing ring, making the connection between the bolt and the nut more stable. By providing a gasket composed of an upper wedge-shaped locking washer and a lower wedge-shaped locking washer clamped together, when the top head rotates to drive the bolt to rotate and connect with the nut, the upper wedge-shaped locking washer and the lower wedge-shaped locking washer are clamped and fixed through the wedge effect, so that the bolt will not loosen when it is subjected to vibration for a long time, thereby improving the stability of the connection between the bolt and the nut. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a hardware fastening with anti-loosening function provided by the utility model;
[0016] Figure 2 A schematic diagram of the structure of the connection between the upper part and the lower part provided by the utility model;
[0017] Figure 3 A schematic diagram of the structure of the nut provided by the utility model;
[0018] Figure 4 This is a schematic structural diagram of an upper wedge-shaped locking washer and a lower wedge-shaped locking washer provided by the utility model.
[0019] In the figure: 1. bolt; 2. top head; 3. nut; 4. placement groove; 5. sealing ring; 6. upper wedge-shaped locking washer; 7. lower wedge-shaped locking washer; 8. wedge-shaped strip; 9. serration; 10. external thread; 11. arc-shaped protrusion; 12. upper part; 13. lower part; 14. internal thread; 15. groove. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-4 As shown, a hardware fastener with an anti-loosening function includes a bolt 1, which can be connected with a matching nut 3 by setting the bolt 1 to fix the upper part 12 and the lower part 13; it also includes a head 2 arranged on the top of the bolt 1 for driving the bolt 1 to rotate, and the head 2 is convenient for the worker to use a wrench to drive the bolt 1 to rotate; the outer side of the bolt 1 is provided with a nut 3 for connecting with the fastening device, and the nut 3 can be connected with the matching bolt 1 by setting the nut 3, thereby improving the stability of the fixation of the upper part 12 and the lower part 13; the inner wall of the nut 3 is provided with a placement groove 4, and a sealing ring 5 can be installed by setting the placement groove 4; the inner wall of the placement groove 4 is fixed with a sealing ring 5, and by setting the sealing ring 5, when the bolt 1 is connected to the nut 3, the bolt 1 rotates to squeeze the sealing ring 5, thereby improving the connection contact effect, thereby preventing the bolt 1 from loosening due to vibration, and the sealing ring 5 is stuck in the placement groove 4 The upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 are arranged on the outer side of the bolt 1 to prevent the bolt 1 from loosening. The upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 can prevent the bolt 1 from loosening due to vibration during use, and can play a supporting and buffering role between the workpieces, which can reduce the friction between the fastener and the workpiece, reduce wear, and prevent deformation and cracking of the workpiece; the contact surfaces of the upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 are provided with wedge strips 8, and the upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 are clamped by the wedge strips 8. The wedge strips 8 can facilitate the clamping of the upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 through the wedge effect; the top of the upper wedge-shaped locking washer 6 and the bottom of the lower wedge-shaped locking washer 7 are provided with serrations 9, and the serrations 9 can reduce wear, increase the tightening effect, and improve stability.
[0022] See also Figure 1 , Figure 2 and Figure 3As shown, the outer side of the bolt 1 is provided with an external thread 10, and the external thread 10 can facilitate the threaded connection between the bolt 1 and the nut 3; the bottom of the bolt 1 is provided with an arc-shaped protrusion 11, and the arc-shaped protrusion 11 can facilitate the insertion of the bolt 1 into the entrance of the nut 3, thereby improving the convenience during connection; the outer side of the bolt 1 is provided with an upper part 12 and a lower part 13, respectively, the upper part 12 is provided at the bottom of the lower wedge-shaped locking washer 7, and the lower part 13 is provided at the top of the nut 3, and the upper part 12 and the lower part 13 can facilitate the connection between the equipment The inner wall of the nut 3 is provided with an internal thread 14, and the internal thread 14 is adapted to the external thread 10. By providing the internal thread 14, the bolt 1 and the nut 3 can be threadedly connected, and the internal thread 14 is adapted to the thread teeth of the external thread 10; a groove 15 is provided inside the head 2, and the size of the groove 15 is adapted to the internal angle wrench. By providing the groove 15, it is convenient for workers to use the internal angle wrench to tighten the bolt 1 when there is no socket wrench; the material of the sealing ring 5 is set to rubber, and the size of the sealing ring 5 is adapted to the placement groove 4.
[0023] Working principle: The worker aligns the upper part 12 and the lower part 13 and puts them together, uses bolt 1 to pass through the upper wedge-shaped locking washer 6, the lower wedge-shaped locking washer 7, the upper part 12 and the lower part 13 in sequence, and at the bottom end of the bolt 1, uses nut 3 to be sleeved on the outside of the bolt 1, and rotates the nut 3 to the bottom of the lower part 13. When the nut 3 rotates on the outside of the bolt 1, the bolt 1 will squeeze the sealing ring 5, and finally use a wrench to rotate the head 2 to drive the bolt 1 to rotate. The head 2 presses the upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7, so that the upper wedge-shaped locking washer 6 and the lower wedge-shaped locking washer 7 are clamped through the wedge effect, and finally tightens the bolt 1 to fix the upper part 12 and the lower part 13.
[0024] 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.
[0025] 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 hardware fastener with anti-loosening function, comprising a bolt (1), characterized in that: Also includes: A top head (2) is arranged on the top of the bolt (1) for driving the bolt (1) to rotate, a nut (3) is arranged on the outer side of the bolt (1) for connecting with a fastening device, a placement groove (4) is arranged on the inner wall of the nut (3), and a sealing ring (5) is fixed on the inner wall of the placement groove (4); An upper wedge-shaped locking washer (6) and a lower wedge-shaped locking washer (7) are arranged on the outer side of the bolt (1) to prevent the bolt (1) from loosening, and the surfaces where the upper wedge-shaped locking washer (6) and the lower wedge-shaped locking washer (7) contact each other are both provided with a wedge-shaped strip (8), the upper wedge-shaped locking washer (6) and the lower wedge-shaped locking washer (7) are clamped together by the wedge-shaped strip (8), and the top of the upper wedge-shaped locking washer (6) and the bottom of the lower wedge-shaped locking washer (7) are both provided with serrations (9).
2. The hardware fastener with anti-loosening function according to claim 1, characterized in that: The outer side of the bolt (1) is provided with an external thread (10), and the bottom of the bolt (1) is provided with an arc-shaped protrusion (11).
3. The hardware fastener with anti-loosening function according to claim 1, characterized in that: An upper part (12) and a lower part (13) are respectively arranged on the outer side of the bolt (1), wherein the upper part (12) is arranged at the bottom of the lower wedge-shaped locking washer (7), and the lower part (13) is arranged at the top of the nut (3).
4. The hardware fastener with anti-loosening function according to claim 2, characterized in that: The inner wall of the nut (3) is provided with an internal thread (14), and the internal thread (14) is adapted to the external thread (10).
5. The hardware fastener with anti-loosening function according to claim 1, characterized in that: A groove (15) is provided inside the top head (2), and the size of the groove (15) is adapted to that of an internal angle wrench.
6. The hardware fastener with anti-loosening function according to claim 1, characterized in that: The material of the sealing ring (5) is set to be rubber, and the size of the sealing ring (5) is adapted to the placement groove (4).