Automobile bolt locking device

By incorporating a latch groove, positioning hole, and flexible washer in the bolt locking device, and utilizing a limit pin and clamping base design, the problem of loosening of automotive bolts during vibration is solved, achieving stability and safety in bolt connections.

CN223708266UActive Publication Date: 2025-12-23浙江瑞都紧固件有限公司
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Patent Information

Application Number
CN202520550952.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2025-12-23
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Car bolts can easily loosen due to vibration during driving, leading to unstable connections and potential safety hazards.

Method used

An automotive bolt locking device was designed. By setting a locking groove and a positioning hole on the lower surface of the nut, a limiting pin is used to lock the locking hole and the positioning hole. Combined with the design of a flexible washer and a clamping base, the connection gap is reduced and the nut is prevented from rotating and falling off.

Benefits of technology

It effectively prevents nuts from falling off during vehicle vibration, ensuring the stability and safety of bolt connections and reducing the risk of loosening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of automobile bolts, and particularly discloses an automobile bolt locking device which comprises an automobile bolt, the automobile bolt comprises a bolt rod body and a thread end, an embedded groove is formed in the lower end of the thread end, a locking buckle rod is installed on the inner side of the embedded groove, a locking insertion hole is formed in the locking buckle rod, and a locking nut is installed in the locking buckle rod. A nut is arranged on the outer side of the thread end, rod buckling grooves are formed in the lower surface of the nut in an array mode, and positioning holes are formed in the rod buckling grooves. After the embedded groove is drawn out and then clamped in the rod buckling groove in the lower surface of the nut, the limiting pin is limited in the positioning hole from the interior of the locking insertion hole, so that rotation of the nut and the thread end is limited, and the situation that the nut rotates and falls off from the thread end due to vibration in the movement process of an automobile can be prevented.
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Description

Technical Field

[0001] This utility model relates to the field of automotive bolts, specifically an automotive bolt locking device. Background Technology

[0002] Automotive fasteners are tools or accessories used to connect automotive parts. They are crucial in the process of automotive assembly and maintenance. Their main function is to ensure that the connection of automotive parts is safe and reliable, and to prevent loosening or separation during driving, thereby ensuring driving safety. Depending on their use and shape, automotive fasteners can be divided into various types, such as bolts, nuts, screws, washers, and pins.

[0003] However, once the car bolts are connected, they are prone to loosening when the car vibrates while driving, which can easily lead to danger. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an automotive bolt locking device, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an automotive bolt locking device, including an automotive bolt, the automotive bolt including: a bolt shank and a threaded end, the lower end of the threaded end having an embedded groove, a locking rod installed on the inner side of the embedded groove, a locking hole provided inside the locking rod, a nut provided on the outer side of the threaded end, a locking rod groove arrayed on the lower surface of the nut, and a positioning hole provided inside the locking rod groove.

[0006] As a further embodiment of this utility model: a clamping base is provided on the outer side of the bolt shank, a gasket is provided on the upper surface of the clamping base below the automotive bolt, and a flexible washer is provided on the lower surface of the gasket.

[0007] As a further embodiment of this utility model: the bolt shank is fixedly connected to the threaded end, and the nut is engaged and rotatably connected to the threaded end.

[0008] As a further improvement of this utility model, the locking lever is rotatably connected to the bolt rod.

[0009] As a further improvement of this utility model: the flexible washer is a rubber component, and a storage groove is provided on the lower surface of the gasket at the position where the flexible washer is used.

[0010] As a further improvement of this utility model, a reserved through hole is provided inside the clamping base corresponding to the position of the bolt rod.

[0011] As a further improvement of this utility model, the locking rod is engaged with the locking rod groove.

[0012] As a further improvement of this utility model, a limit pin is provided between the locking hole and the positioning hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] After the inner groove is pulled out and locked inside the retaining groove on the lower surface of the nut, the limiting pin is used to limit the rotation of the nut and the threaded end by moving it from inside the locking hole to inside the positioning hole. This prevents the nut from rotating and falling off due to vibration during vehicle movement.

[0015] With the side of the nut with the shank groove away from the lower surface of the clamping base, the nut and bolt shank are engaged and rotated. This squeezes the clamping base to deform and house the flexible washer inside the washer, thereby reducing the connection gap between the automotive bolt and the clamping base. Attached Figure Description

[0016] Figure 1 A schematic diagram of a car bolt locking device;

[0017] Figure 2 This is a schematic diagram of the structure of an automotive bolt in an automotive bolt locking device;

[0018] Figure 3 This is a schematic diagram of the structure of a nut in an automotive bolt locking device;

[0019] Figure 4 This is a schematic diagram of the structure of a gasket in an automotive bolt locking device.

[0020] In the diagram: 1. Automotive bolt; 2. Washer; 3. Clamping base; 4. Nut; 101. Bolt shank; 102. Threaded end; 103. Inset groove; 104. Locking rod; 105. Locking hole; 201. Flexible washer; 401. Rod groove; 402. Positioning hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4As shown, this embodiment provides an automotive bolt locking device, including an automotive bolt 1. The automotive bolt 1 includes: a bolt shank 101 and a threaded end 102. The bolt shank 101 and the threaded end 102 are fixedly connected. An inner groove 103 is provided at the lower end of the threaded end 102. A locking lever 104 is installed on the inner side of the inner groove 103. The locking lever 104 is rotatably connected to the bolt shank 101. A locking insertion hole 105 is provided inside the locking lever 104. A nut 4 is provided on the outer side of the threaded end 102. The nut 4 is engaged and rotatably connected to the threaded end 102. A lever groove 401 is arrayed on the lower surface of the nut 4. The locking lever 104 is engaged with the lever groove 401. A positioning hole 402 is provided inside the lever groove 401. A limit pin is provided between the locking insertion hole 105 and the positioning hole 402.

[0023] like Figure 2-3 As shown, in this embodiment, a clamping base 3 is provided on the outer side of the bolt shank 101. A reserved through hole is provided inside the clamping base 3 corresponding to the position of the bolt shank 101. A gasket 2 is provided on the upper surface of the clamping base 3 below the automotive bolt 1. A flexible washer 201 is provided on the lower surface of the gasket 2. A storage groove is provided on the lower surface of the gasket 2 corresponding to the position of the flexible washer 201. The flexible washer 201 is a rubber component.

[0024] The working principle of this utility model is as follows: In use, after placing the side of the gasket 2 with the flexible washer 201 corresponding to the pre-drilled through hole on the clamping base 3, the entire automotive bolt 1 passes through the gasket 2. The nut 4 is then positioned corresponding to the threaded end 102 of the lower end of the automotive bolt 1, with the side of the nut 4 with the retaining groove 401 away from the lower surface of the clamping base 3. After the nut 4 engages and rotates with the bolt shank 101, the clamping base 3 is compressed, causing the flexible washer 201 to deform and be housed within the gasket 2. To reduce the connection gap between the car bolt 1 and the clamping base 3, after the nut 4 is tightly installed, the locking rod 104 housed inside the recessed groove 103 is rotated by a pivot, and the recessed groove 103 is pulled out and locked inside the rod groove 401 on the lower surface of the nut 4. The limiting pin is then used to limit the rotation of the nut 4 and the threaded end 102 from inside the locking hole 105. This prevents the nut 4 from rotating and falling off due to vibration during car movement.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car bolt locking device, comprising a car bolt (1), characterized in that, The automotive bolt (1) includes: a bolt shank (101) and a threaded end (102). The lower end of the threaded end (102) is provided with an embedded groove (103). A locking rod (104) is installed on the inner side of the embedded groove (103). A locking hole (105) is provided inside the locking rod (104). A nut (4) is provided on the outer side of the threaded end (102). A locking rod groove (401) is arrayed on the lower surface of the nut (4). A positioning hole (402) is provided inside the locking rod groove (401).

2. The automotive bolt locking device according to claim 1, characterized in that, A clamping base (3) is provided on the outside of the bolt shank (101), and a washer (2) is provided on the upper surface of the clamping base (3) below the automobile bolt (1), and a flexible washer (201) is provided on the lower surface of the washer (2).

3. The automotive bolt locking device according to claim 1, characterized in that, The bolt shank (101) is fixedly connected to the threaded end (102), and the nut (4) is engaged and rotatably connected to the threaded end (102).

4. The automotive bolt locking device according to claim 1, characterized in that, The locking lever (104) is rotatably connected to the bolt rod (101).

5. The automotive bolt locking device according to claim 2, characterized in that, The flexible washer (201) is a rubber component, and the lower surface of the gasket (2) has a storage groove at the position where the flexible washer (201) is located.

6. The automotive bolt locking device according to claim 2, characterized in that, The clamping base (3) has a reserved through hole at the position corresponding to the bolt rod (101).

7. The automotive bolt locking device according to claim 1, characterized in that, The locking lever (104) engages with the lever groove (401).

8. The automotive bolt locking device according to claim 1, characterized in that, A limit pin is provided between the locking hole (105) and the positioning hole (402).