Lock screw for automobile chassis
The design of the screw-type tightening limit assembly and the pin positioning assembly solves the problem of loose nuts, achieves a stable connection of the screws, and improves the stability and safety of the automobile chassis components.
Patent Information
- Application Number
- CN202422993656.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The nuts of existing automobile chassis screws are easily loosened due to vibration, affecting the stability and safety of component connections.
The screw-type tightening limit assembly and the pin positioning assembly are adopted, and the combined design of the swing adjustment block and the limit baffle is used to achieve effective limitation and stability of the nut to prevent loosening, and the stability is further enhanced by the pin positioning assembly.
It improves the stability and reliability of the screws after installation, prevents loosening due to vibration or external force, and enhances the convenience and flexibility of installation.
Smart Images
Figure CN223330939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screws, in particular to an anti-loosening screw for an automobile chassis. Background Art
[0002] Automobile chassis screws are key components for connecting and fixing various components of the automobile chassis. They ensure the integrity and strength of the chassis structure and are crucial to the stability and safety of the vehicle. These screws are divided into various types according to their location and purpose, such as chassis suspension screws, brake system screws, steering system screws, etc. They are usually made of high-strength steel, have excellent mechanical properties and corrosion resistance, and can withstand various shocks and vibrations during vehicle driving. The tightness of automobile chassis screws directly affects the stability of chassis components and the safety of the vehicle. Therefore, regular inspection and maintenance are required to ensure that they are in good working condition. However, existing screws are usually composed of a nut and a screw rod during use. The nut lacks a limiting structure during use. As the car vibrates, the nut is prone to loosening, affecting the stability of the connection between automobile chassis components, and there are certain disadvantages in the use process.
[0003] In view of this, the present utility model is proposed. Utility Model Content
[0004] In order to overcome the technical defects of the existing technology, the utility model provides an anti-loosening screw for automobile chassis, which can effectively limit and fix the nut, prevent loosening and displacement, improve the stability and reliability of the screw after installation, and at the same time avoid affecting the overall installation of the screw, thereby improving the convenience and flexibility of screw installation.
[0005] The technical solution adopted by the utility model is: it includes a screw body and a screw head, the screw head is fixed on the screw body, the screw body is threadedly sleeved with the fixing nut, the extension mounting block is fixedly welded on the screw body, one end of the extension mounting block is provided with a yield mounting groove, the swing adjustment block is installed in the yield mounting groove, and the swing adjustment block is rotatably connected to the extension mounting block through the rotating shaft, one end of the swing adjustment block is fixedly installed with the mounting bar block, the mounting bar block is provided with a transverse mounting groove, and the transverse mounting groove is installed with the screw-type tightening limiting component, one end of the screw-type tightening limiting component is sleeved on the screw body for limiting the nut, and one end of the mounting bar block is fixedly installed with the latch positioning component, and the latch positioning component is used to position the screw-type tightening limiting component.
[0006] Preferably, in order to pass through the screwing head, the driving screw can be rotated in the transverse mounting groove through the rotating joint, the screw-type tightening limit assembly includes the driving screw, and the driving screw is rotatably installed on the inner wall of one end of the transverse mounting groove through the rotating joint, and the screwing head is fixedly installed on one end of the driving screw.
[0007] Preferably, in order to facilitate control of the screwing head, the screwing head is located outside the mounting block.
[0008] Preferably, in order to control the rotation of the driving screw so that the threaded slider can slide in the transverse mounting groove, thereby driving the limit baffle to move, the driving screw is equipped with the threaded slider, the threaded slider is slidably engaged in the transverse mounting groove, the limit baffle is fixedly mounted on the threaded slider, and one end of the limit baffle is sleeved on the screw body.
[0009] Preferably, in order to limit and fix the screwing head by means of the positioning pin rod, the pin positioning assembly includes the square fixing block, the square fixing block is installed on one end of the top of the mounting bar, the protruding plate is fixedly installed on the top of the square fixing block, the positioning pin rod is slidably installed on one end of the protruding plate, and one end of the positioning pin rod is inserted into the positioning pin hole opened on the screwing head.
[0010] Preferably, in order to enable the positioning pin rod to be inserted into different positioning pin holes, the positioning pin holes are evenly distributed on the circumference of the screwing head.
[0011] Preferably, in order to enable the positioning pin rod to slide on the extension plate through the lifting drive rod, the lifting drive rod is fixedly mounted on the other end of the positioning pin rod.
[0012] Preferably, in order to enable the annular pressing block to drive the positioning pin rod to be fixedly inserted into the positioning pin hole through the pressing spring, the annular pressing block is fixedly sleeved on the positioning pin rod, and the annular pressing block is elastically connected to the protruding plate through the pressing spring.
[0013] The beneficial effects of the present invention are: through the screw-type tightening limit assembly and the swing adjustment block, effective limiting and firm anti-loosening of the fixed nut are achieved, which not only improves the stability and reliability of the screw after installation and prevents the nut from loosening due to vibration or external force, but also further enhances the stability of the screw-type tightening limit assembly through the pin positioning assembly, ensuring that it is not easy to shift or fail during operation. At the same time, the flexibility of the swing adjustment block makes it possible to easily adjust the installation bar and the components thereon to the optimal position, thereby improving the convenience and flexibility of screw installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 This is a schematic diagram of the installation structure of the installation strips of the utility model.
[0016] Figure 3 This is a schematic diagram of the installation structure of the screw-type tight limit assembly of the utility model on the installation bar.
[0017] Figure 4 This is a structural diagram of the screw-type tightening and limiting component of the utility model.
[0018] Figure 5 This is a structural diagram of the latch positioning assembly of the present invention.
[0019] Explanation of the accompanying drawings: In the figure: 1. Screw body; 2. Screw head; 3. Fixed nut; 4. Extension mounting block; 5. Swing adjustment block; 6. Rotating shaft; 7. Mounting bar; 8. Screw-type tightening limit assembly; 801. Drive screw; 802. Rotating joint; 803. Screwing head; 804. Threaded slider; 805. Limit baffle; 9. Pin positioning assembly; 901. Square fixing block; 902. Extending plate; 903. Positioning pin rod; 904. Lifting drive rod; 905. Annular tightening block; 906. Tightening spring. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] like Figure 1-Figure 5As shown, this embodiment provides a kind of anti-loosening screw for automobile chassis, including a screw body 1 and a screw head 2, the screw head 2 is fixed on the screw body 1, and a fixing nut 3 is threadedly sleeved on the screw body 1, and an extension mounting block 4 is fixedly welded on the screw body 1, and a yield mounting groove is provided at one end of the extension mounting block 4, and a swing adjustment block 5 is installed in the yield mounting groove, and the swing adjustment block 5 is rotatably connected to the extension mounting block 4 through a rotating shaft 6. A mounting bar 7 is fixedly installed on one end of the swing adjustment block 5, and a transverse mounting groove is provided on the mounting bar 7, and a screw-type tight limiting component 8 is installed in the transverse mounting groove. One end of the screw-type tight limiting component 8 is sleeved on the screw body 1 for limiting the nut, and a latch positioning component 9 is fixedly installed on one end of the mounting bar 7. The latch positioning component 9 is used to position the screw-type tight limiting component 8. When in use, the screw body 1 is passed through the hole of the component to be fixed, and the fixing nut 3 is screwed on to an appropriate tightness. Next, by utilizing the rotation flexibility of the swing adjustment block 5 in the yielding installation groove of the extended installation block 4, adjust the installation bar 7 and the screw-type tightening limit assembly 8 thereon to the appropriate position, and control the screw-type tightening limit assembly 8 so that one end of it is tightly sleeved on the screw body 1 and tightly attached to the fixed nut 3, thereby achieving effective limitation of the nut to prevent it from loosening, and fix the screw-type tightening limit assembly 8 through the pin positioning assembly 9 to ensure that it remains stable during operation, further enhancing the anti-loosening effect.
[0022] The screw-type tightening limit assembly 8 includes a driving screw 801, which is rotatably installed on the inner wall of one end of the horizontal mounting groove through a rotating joint 802. A screwing head 803 is fixedly installed on one end of the driving screw 801, and the screwing head 803 is located on the outside of the mounting block 7. A threaded slider 804 is installed on the driving screw 801, and the threaded slider 804 is slidably engaged in the horizontal mounting groove. A limit baffle 805 is fixedly installed on the threaded slider 804, and one end of the limit baffle 805 is sleeved on the screw body 1. When in use, the driving screw 801 is manually rotated through the screwing head 803 located on the outside of the mounting block 7. The driving screw 801 interacts with the threaded slider 804 through the thread thereon, so that the threaded slider 804 slides in the horizontal mounting groove. As the driving screw 801 rotates, the threaded slider 804 drives the limit baffle 805 fixed thereon to move toward the screw body 1 until the limit baffle 805 is tightly fitted on the screw body 1 and comes into contact with the tightened fixed nut 3, thereby achieving effective limiting of the nut. During the whole process, by adjusting the rotation direction and degree of the screwing head 803, the tightening force of the limit baffle 805 on the screw body 1 and the nut can be accurately controlled to achieve the desired anti-loosening effect. It is not only easy to operate, but also can provide stable anti-loosening performance, ensuring the firm connection of the automobile chassis components.
[0023] The latch positioning assembly 9 includes a square fixing block 901, which is mounted on one end of the top of the mounting bar 7. An extension plate 902 is fixedly mounted on the top of the square fixing block 901. A positioning pin rod 903 is slidably mounted on one end of the extension plate 902. One end of the positioning pin rod 903 is inserted into the positioning pin hole opened on the screw head 803. The positioning pin holes are evenly distributed on the circumference of the screw head 803. A lifting drive rod 904 is fixedly mounted on the other end of the positioning pin rod 903. A fixed sleeve is mounted on the positioning pin rod 903. The annular abutment block 905 is connected to the extension plate 902 via a spring 906. The positioning pin 903 is pulled out of the positioning pin hole on the screw head 803 by the lifting drive rod 904. At this time, the annular abutment block 905 maintains elastic abutment against the positioning pin 903 under the action of the spring 906, ensuring that the positioning pin 903 can slide smoothly. Then, the screw head 803 is rotated to adjust the position of the limit baffle 805 until the desired anti-loosening effect is achieved. Then, the lifting drive rod 904 is released, and the positioning pin 903 is inserted into the corresponding positioning pin hole on the screw head 803 under the push of the spring 906, thereby fixing the screw head 803 and ensuring the stability of the position of the limit baffle 805. The operation is simple, the positioning is accurate and reliable, and the screw head 803 can be effectively prevented from loosening under the action of external forces such as vibration, further improving the anti-loosening performance and stability of the anti-loosening screw.
[0024] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model will have various changes and improvements, and these changes and improvements will fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A car chassis anti-loosening screw, comprising a screw body (1) and a screw head (2), wherein the screw head (2) is fixed to the screw body (1), and a fixing nut (3) is threadedly sleeved on the screw body (1), characterized in that: An extension mounting block (4) is fixedly welded on the screw body (1), a yielding mounting groove is provided at one end of the extension mounting block (4), a swing adjustment block (5) is installed in the yielding mounting groove, the swing adjustment block (5) is rotatably connected to the extension mounting block (4) via a rotating shaft (6), a mounting bar (7) is fixedly installed at one end of the swing adjustment block (5), a transverse mounting groove is provided on the mounting bar (7), a screw-type tight limiting assembly (8) is installed in the transverse mounting groove, one end of the screw-type tight limiting assembly (8) is sleeved on the screw body (1) for limiting the nut, a latch positioning assembly (9) is fixedly installed at one end of the mounting bar (7), and the latch positioning assembly (9) is used to position the screw-type tight limiting assembly (8).
2. The anti-loosening screw for automobile chassis according to claim 1, characterized in that: The screw-type tightening limit assembly (8) comprises a driving screw (801), wherein the driving screw (801) is rotatably mounted on the inner wall of one end of the transverse mounting groove via a rotating joint (802), and a screwing head (803) is fixedly mounted on one end of the driving screw (801).
3. The anti-loosening screw for automobile chassis according to claim 2, characterized in that: The screwing head (803) is located outside the mounting bar (7).
4. The anti-loosening screw for automobile chassis according to claim 3, characterized in that: A threaded slider (804) is mounted on the driving screw (801), and the threaded slider (804) is slidably engaged in the transverse mounting groove. A limit baffle (805) is fixedly mounted on the threaded slider (804), and one end of the limit baffle (805) is sleeved on the screw body (1).
5. The anti-loosening screw for automobile chassis according to claim 2, characterized in that: The latch positioning assembly (9) comprises a square fixing block (901), the square fixing block (901) being mounted on one end of the top of the mounting bar (7), a protruding plate (902) being fixedly mounted on the top of the square fixing block (901), a positioning pin rod (903) being slidably mounted on one end of the protruding plate (902), and one end of the positioning pin rod (903) being inserted into a positioning pin hole provided on the screwing head (803).
6. The anti-loosening screw for automobile chassis according to claim 5, characterized in that: The positioning pin holes are evenly distributed around the circumference of the screwing head (803).
7. The anti-loosening screw for automobile chassis according to claim 6, characterized in that: A lifting drive rod (904) is fixedly mounted on the other end of the positioning pin rod (903).
8. The anti-loosening screw for automobile chassis according to claim 7, characterized in that: An annular pressing block (905) is fixedly sleeved on the positioning pin rod (903), and the annular pressing block (905) is elastically connected to the extending plate (902) via a pressing spring (906).