Reverse rotation self-locking thread fastener

Abstract

The utility model provides a kind of anti-rotation self-locking thread fastener.The anti-rotation self-locking thread fastener includes: thread fastener body;Multiple anti-loose teeth, multiple the anti-loose teeth are opened in the outer surface of thread fastener body, the thread fastener body includes stud, first right thread, second right thread, anti-rotation thread and bolt, the anti-rotation thread is opened between first right thread and second right thread;Fastening nut, the fastening nut is threadedly connected in the outer surface of stud, the outer surface of stud is threadedly connected with locknut, the outer surface of locknut and fastening nut is opened with multiple limit openings, the outer surface of locknut and fastening nut is equipped with multiple anti-loose components.The anti-rotation self-locking thread fastener provided by the utility model, by the way of double-nut cooperation with right and left thread, prevents the nut from loosening, realizes bidirectional interlocking, improves the anti-loose effect and connection stability of thread fastener.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening threaded fasteners, and in particular to an anti-loosening self-locking threaded fastener. Background Technology

[0002] Threaded fasteners are mechanical parts with internal or external threads, generally used as fasteners to facilitate the assembly of multiple components. The most common threaded fasteners are screws, nuts, and bolts. However, other threaded fasteners also exist.

[0003] The main function of threaded fasteners is to connect, fix, and close objects, and maintain their stability and integrity. They are widely used in fields such as construction, automotive design, aerospace, furniture manufacturing, and electronics. Threaded fasteners achieve tight connection and fixation of parts through the interlocking of their internal and external threads, ensuring the normal operation of mechanical equipment.

[0004] During use, threaded fasteners are easily subjected to vibration, which can cause the studs and nuts to rotate, resulting in loosening of the threaded fasteners and affecting the stability of the threaded fastener connection.

[0005] Therefore, it is necessary to provide a reverse-rotation self-locking anti-loosening threaded fastener to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a reverse-rotation self-locking anti-loosening threaded fastener, which solves the problem that threaded fasteners are easily affected by vibration during use, causing the stud and nut to rotate and thus loosening the threaded fasteners, affecting the stability of the connection.

[0007] To solve the above-mentioned technical problems, the reverse-rotation self-locking anti-loosening threaded fastener provided by this utility model includes: a threaded fastener body;

[0008] Multiple anti-loosening teeth are provided on the outer surface of the threaded fastener body. The threaded fastener body includes a stud, a first positive thread, a second positive thread, a reverse thread, and a bolt. The reverse thread is provided between the first positive thread and the second positive thread.

[0009] A fastening nut is threaded onto the outer surface of a stud. A lock nut is threaded onto the outer surface of the stud. Multiple limiting holes are provided on the outer surfaces of both the lock nut and the fastening nut. Multiple lock components are installed on the outer surfaces of both the lock nut and the fastening nut. Each lock component includes a connecting structure and two mating structures. The connecting structure is used to install the two mating structures.

[0010] The bolt is fixedly connected to the top of the stud, and the anti-loosening teeth are located on the outer surface of the stud. The mating structure on the anti-loosening component is inserted into the interior of the limiting port, which can ensure the synchronization of the anti-loosening nut and the fastening nut. The anti-loosening nut and the fastening nut are respectively connected to the positive thread and the reverse thread on the outer surface of the stud.

[0011] Preferably, the outer surface of the bolt is provided with a top protective sleeve, and a monitoring port is provided at the top of the top protective sleeve.

[0012] Preferably, a monitoring component is installed at the top of the protective sleeve, the monitoring component comprising a fixed base and monitoring parts;

[0013] The monitoring end of the monitoring component is inserted into the monitoring port to monitor the vibration of the threaded fastener body.

[0014] Preferably, an upper anti-loosening ring is installed on the outer surface of the stud near the top, and a lower anti-loosening ring is installed on the outer surface of the stud near the bottom;

[0015] The lower anti-loosening ring is located between the anti-loosening nut and the fastening nut.

[0016] Preferably, the outer surface of the anti-loosening nut and the fastening nut is fitted with a bottom protective sleeve, and the top of the bottom protective sleeve is provided with a snap-fit ​​opening.

[0017] Preferably, the outer surface of the anti-loosening nut is provided with a threaded hole, and a limit screw is threadedly connected inside the threaded hole;

[0018] The limit screw can play a limiting role after it comes into contact with the stud.

[0019] Compared with related technologies, the anti-rotation self-locking anti-loosening threaded fastener provided by this utility model has the following advantages:

[0020] Beneficial effects:

[0021] This utility model provides a reverse-rotation self-locking anti-loosening threaded fastener. To prevent the threaded fastener from loosening during vibration, a first positive thread and a second positive thread are formed on the outer surface of the stud, and a reverse-rotation thread is formed between the first and second positive threads. The reverse-rotation thread and the two positive threads work together to lock the fastener and the anti-loosening nut in both directions, preventing the fastener from loosening due to vibration. In actual use, the fastener is installed above the anti-loosening nut, and the fastener and the anti-loosening nut are respectively engaged with one of the positive threads and the reverse-rotation thread. After the fastener and the anti-loosening nut are fixed, the anti-loosening component is inserted into the limiting hole on the outer surface of the fastener and the anti-loosening nut. This design uses a double nut with positive and negative threads to prevent the nut from loosening, achieving bidirectional interlocking and improving the anti-loosening effect and connection stability of the threaded fastener. Attached Figure Description

[0022] Figure 1 A schematic diagram of a preferred embodiment of the anti-rotation self-locking anti-loosening threaded fastener provided by this utility model;

[0023] Figure 2 A structural schematic diagram of the anti-loosening component is provided for this utility model;

[0024] Figure 3 A structural schematic diagram of the monitoring component is provided for this utility model;

[0025] Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown;

[0026] Figure 5 Provided for this utility model Figure 3 A magnified view of point B shown.

[0027] The following are the labels in the diagram: 1. Threaded fastener body; 101. Stud; 102. First positive thread; 103. Second positive thread; 104. Reverse thread; 105. Bolt; 2. Bottom protective sleeve; 3. Upper anti-loosening ring; 4. Monitoring component; 401. Monitoring part; 402. Fixed base; 5. Top protective sleeve; 6. Bayonet; 7. Fastening nut; 8. Limiting screw; 9. Anti-loosening component; 901. Connecting structure; 902. Butt joint structure; 10. Anti-loosening nut; 11. Lower anti-loosening ring; 12. Anti-loosening tooth; 13. Monitoring port; 14. Limiting port; 15. Threaded hole. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the anti-rotation self-locking anti-loosening threaded fastener provided by this utility model; Figure 2 A structural schematic diagram of the anti-loosening component is provided for this utility model; Figure 3 A structural schematic diagram of the monitoring component is provided for this utility model;

[0030] Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown; Figure 5 Provided for this utility model Figure 3 The enlarged view at point B is shown. The anti-rotation self-locking anti-loosening threaded fastener includes: threaded fastener body 1;

[0031] Multiple anti-loosening teeth 12 are provided on the outer surface of the threaded fastener body 1. The threaded fastener body 1 includes a stud 101, a first positive thread 102, a second positive thread 103, a reverse thread 104, and a bolt 105. The reverse thread 104 is provided between the first positive thread 102 and the second positive thread 103.

[0032] A fastening nut 7 is threaded onto the outer surface of a stud 101. A locking nut 10 is threaded onto the outer surface of the stud 101. Both the locking nut 10 and the fastening nut 7 have multiple limiting holes 14 on their outer surfaces. Multiple locking components 9 are installed on the outer surfaces of the locking nut 10 and the fastening nut 7. Each locking component 9 includes a connecting structure 901 and two mating structures 902. The connecting structure 901 is used to install the two mating structures 902.

[0033] Bolt 105 is fixedly connected to the top of stud 101. Anti-loosening tooth 12 is located on the outer surface of stud 101. The mating structure 902 on the anti-loosening component 9 is inserted into the limit port 14 to ensure the synchronization of anti-loosening nut 10 and fastening nut 7. Anti-loosening nut 10 and fastening nut 7 are respectively threaded to the positive thread and the reverse thread 104 on the outer surface of stud 101. Therefore, the length of the positive thread and the reverse thread 104 is determined according to the requirements.

[0034] The outer surface of the bolt 105 is provided with a top protective sleeve 5, and a monitoring port 13 is opened on the top of the top protective sleeve 5;

[0035] The top protective sleeve 5 can protect the top of bolt 105.

[0036] The top of the protective sleeve 5 is equipped with a monitoring component 4, which includes a fixed base 402 and a monitoring component 401.

[0037] The monitoring end of the monitoring component 401 is inserted into the monitoring port 13 to monitor the vibration of the threaded fastener body 1. The monitoring component 401 is self-powered by lithium batteries.

[0038] An upper anti-loosening ring 3 is installed on the outer surface of the stud 101 near the top, and a lower anti-loosening ring 11 is installed on the outer surface of the stud 101 near the bottom;

[0039] The lower anti-loosening ring 11 is located between the anti-loosening nut 10 and the fastening nut 7, and the upper anti-loosening ring 3 is located close to the bolt 105.

[0040] The outer surfaces of the anti-loosening nut 10 and the fastening nut 7 are fitted with a bottom protective sleeve 2, and the top of the bottom protective sleeve 2 is provided with a snap 6;

[0041] The bayonet 6 allows the limiting screw 8 to pass through.

[0042] The outer surface of the anti-loosening nut 10 is provided with a threaded hole 15, and a limit screw 8 is threadedly connected inside the threaded hole 15.

[0043] The limiting screw 8 can play a limiting role after contacting the stud 101, thereby increasing the anti-loosening effect.

[0044] The working principle of the anti-rotation self-locking anti-loosening threaded fastener provided by this utility model is as follows:

[0045] A first positive thread 102 and a second positive thread 103 are formed on the outer surface of the stud 101, and a reverse thread 104 is formed between the first positive thread 102 and the second positive thread 103. The reverse thread 104 and the two sections of positive thread work together to lock the nut 7 and the lock nut 10 in both directions, preventing the nut 7 from loosening due to vibration. In actual use, the nut 7 is installed above the lock nut 10, and the nut 7 and the lock nut 10 are respectively connected to one section of positive thread and the reverse thread. The threads 104 engage to connect the fastening nut 7 and the anti-loosening nut 10. After the fastening nut 7 and the anti-loosening nut 10 are fixed, the anti-loosening component 9 is engaged into the limiting port 14 on the outer surface of the fastening nut 7 and the anti-loosening nut 10. When subjected to vibration, the forward and reverse threads 104 can move the fastening nut 7 and the anti-loosening nut 10 in opposite directions. The more vibration there is, the tighter the fastening nut 7 and the anti-loosening nut 10 will fit together. At the same time, the anti-loosening component 9 can prevent the fastening nut 7 and the anti-loosening nut 10 from moving synchronously after being subjected to vibration, thus preventing loosening caused by moving alone.

[0046] Compared with related technologies, the anti-rotation self-locking anti-loosening threaded fastener provided by this utility model has the following advantages:

[0047] Beneficial effects:

[0048] To prevent threaded fasteners from loosening during vibration, a first positive thread 102 and a second positive thread 103 are formed on the outer surface of the stud 101, and a reverse thread 104 is formed between the first positive thread 102 and the second positive thread 103. The reverse thread 104 and the two sections of positive threads work together to lock the fastener 7 and the lock nut 10 in both directions, preventing the fastener 7 from loosening due to vibration. In actual use, the fastener 7 is installed above the lock nut 10, and both the fastener 7 and the lock nut 10 are engaged with one section of the positive thread and the reverse thread 104 respectively. After the nut 10 is fixed, the anti-loosening component 9 is engaged with the limiting port 14 on the outer surface of the fastening nut 7 and the anti-loosening nut 10. When subjected to vibration, the positive thread and the negative thread 104 can move the fastening nut 7 and the anti-loosening nut 10 in opposite directions. The more vibration there is, the tighter the fastening nut 7 and the anti-loosening nut 10 fit together. At the same time, the anti-loosening component 9 can prevent the fastening nut 7 and the anti-loosening nut 10 from moving synchronously after being subjected to vibration, and prevent loosening caused by moving alone. This design uses a double nut with positive and negative threads to prevent the nut from loosening, realize bidirectional interlocking, and improve the anti-loosening effect and connection stability of the threaded fastener.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reverse-rotation self-locking anti-loosening threaded fastener, characterized in that, include: Threaded fastener body; Multiple anti-loosening teeth are provided on the outer surface of the threaded fastener body. The threaded fastener body includes a stud, a first positive thread, a second positive thread, a reverse thread, and a bolt. The reverse thread is provided between the first positive thread and the second positive thread. A fastening nut is threaded onto the outer surface of a stud. An anti-loosening nut is threaded onto the outer surface of the stud. Multiple limiting holes are provided on the outer surfaces of both the anti-loosening nut and the fastening nut. Multiple anti-loosening components are installed on the outer surfaces of both the anti-loosening nut and the fastening nut. Each anti-loosening component includes a connecting structure and two mating structures. The connecting structure is used to install the two mating structures.

2. The anti-rotation self-locking anti-loosening threaded fastener according to claim 1, characterized in that, The outer surface of the bolt is provided with a top protective sleeve, and a monitoring port is opened at the top of the top protective sleeve.

3. The anti-rotation self-locking anti-loosening threaded fastener according to claim 2, characterized in that, The top of the protective sleeve is equipped with a monitoring component, which includes a fixed base and monitoring parts.

4. The anti-rotation self-locking anti-loosening threaded fastener according to claim 1, characterized in that, An upper anti-loosening ring is installed on the outer surface of the stud near the top, and a lower anti-loosening ring is installed on the outer surface of the stud near the bottom.

5. The anti-rotation self-locking anti-loosening threaded fastener according to claim 1, characterized in that, The outer surface of the anti-loosening nut and the fastening nut is fitted with a bottom protective sleeve, and the top of the bottom protective sleeve is provided with a snap-fit ​​opening.

6. The anti-rotation self-locking anti-loosening threaded fastener according to claim 1, characterized in that, The outer surface of the anti-loosening nut is provided with a threaded hole, and a limit screw is threadedly connected inside the threaded hole.

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