Automobile locknut

Abstract

The utility model provides an automobile locknut which comprises a screw rod and a nut body, the nut body is in threaded connection with the surface of the screw rod, a circumferential sliding groove is formed in the top of the nut body, two sliding blocks are connected to the inner wall of the circumferential sliding groove in a sliding mode, and a positioning frame is fixedly connected to the tops of the sliding blocks. And an anti-loosening mechanism is arranged on one side of the positioning frame. The utility model relates to the technical field of nuts. According to the automobile anti-loosening nut, by arranging the anti-loosening mechanism, after the nut is rotated to gradually move to the proper position on the screw rod, the threaded rod is driven to rotate by rotating the screwing block, and while the threaded rod rotates, external threads on the surface of the threaded rod can extrude internal threads of the threaded hole, so that the anti-loosening effect is achieved. The locking block moves towards the side close to the screw rod along the tracks of the guide block and the guide groove, and then the locking block enters the locking groove, so that the nut cannot rotate, and the effect of preventing the nut from loosening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an automobile anti-loosening nut. Background Art

[0002] Nuts are usually screwed together with screws to fasten parts and are an indispensable component of mechanical equipment such as automotive accessories.

[0003] Publication number "CN220204336U" provides an automobile anti-loosening nut, comprising a screw and a nut, wherein the screw is provided with a slot, one side of the nut is fixedly connected to a ratchet, one side of the ratchet is rotatably connected to a sleeve via a bearing, a clip is fixed to the middle position of the sleeve, one side of the sleeve is provided with a receiving groove, a round rod is slidably provided inside the receiving groove, one side of the round rod is provided with a stopper that acts on the ratchet, wherein an elastic push assembly is provided between the round rod and the stopper. The utility model uses the slot, ratchet, clip, stopper, etc. to work together. When the nut is subjected to a force rotating in a direction away from the nut cap at the end of the screw, the stopper that fits with the ratchet on one side of the nut will limit the rotation of the ratchet, thereby preventing the nut from rotating loose in a direction away from the nut cap at the end of the screw, thereby effectively preventing the nut from loosening and ensuring the tightening effect of the parts.

[0004] However, the above device still has the following problems during implementation:

[0005] When a car is driving, if it encounters a bumpy road, it will produce large vibrations, which will cause the nut to loosen easily, reducing the tightness of the car parts fixed by the screw and nut, which is not conducive to user use. Utility Model Content

[0006] The purpose of the utility model is to provide an automobile anti-loosening nut to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An automobile anti-loosening nut comprises a screw and a nut, wherein the nut is threadedly connected to the surface of the screw, a circumferential sliding groove is formed on the top of the nut, and two sliding blocks are slidably connected to the inner wall of the circumferential sliding groove, the top of each sliding block is fixedly connected to a positioning frame, one side of the positioning frame is provided with an anti-loosening mechanism, and both sides of the positioning frame are fixedly connected to connecting blocks, and the top of each connecting block is provided with an adjustment mechanism;

[0009] The anti-loosening mechanism includes a threaded rod arranged on one side of the positioning frame, one end of the threaded rod is fixedly connected to a twisting block, the other end of the threaded rod passes through one side of the positioning frame, the surface of the threaded rod is transmission-connected to a locking block, locking grooves for cooperating with the locking block are provided on both sides of the screw rod, and a threaded hole for cooperating with the threaded rod is provided on one side of the locking block.

[0010] Preferably, the adjusting mechanism includes a shell fixedly connected to the top of the connecting block, a moving block is provided inside the shell, the bottom of the moving block is fixedly connected to a positioning rod, the bottom of the positioning rod passes through the bottom of the connecting block, the top of the nut is provided with a positioning hole for use with the positioning rod, the top of the moving block is fixedly connected to a traction rod, the surface of the traction rod is provided with a spring, the top of the spring is fixedly connected to the inner wall of the shell, and the bottom of the spring is fixedly connected to the bottom of the moving block.

[0011] Preferably, a traction block is provided on the top of the positioning frame, a pull ring is fixedly connected to the top of the traction block, and the top of the traction rod passes through the top of the shell and is fixedly connected to the bottom of the traction block.

[0012] Preferably, the number of the positioning holes is several and they are evenly distributed on the top of the nut.

[0013] Preferably, a guide block is fixedly connected to the bottom of the locking block, and a guide groove for use with the guide block is formed on the inner wall of the positioning frame.

[0014] Preferably, a bearing is provided on one side of the twisting block, and the twisting block is rotatably connected to one side of the positioning frame through the bearing.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is provided with an anti-loosening mechanism. After the nut is gradually moved to an appropriate position on the screw rod by rotating the nut, the threaded rod is driven to rotate by rotating the twisting block. As the threaded rod rotates, the external thread on its surface squeezes the internal thread of the threaded hole, causing the locking block to move along the trajectory of the guide block and the guide groove to the side close to the screw rod. Then the locking block will enter the locking groove, making the nut unable to rotate, thereby preventing the nut from loosening.

[0017] 2. The utility model is provided with an adjustment mechanism, which can drive the traction block, traction rod, movable block and positioning rod to move upward by pulling the pull ring upward, so that the positioning rod leaves the inside of the positioning hole. After that, the position of the positioning frame can be adjusted in a circular manner along the trajectory of the circumferential sliding groove and the sliding block until the locking block on the positioning frame is opposite to the locking groove. After that, the pull ring is released, and the elastic force generated by the spring will push the movable block and positioning rod downward, so that the positioning rod enters the corresponding positioning hole, completing the adjustment of the locking block position so that it can accurately enter the locking groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 A perspective view of the main structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 4 It is a three-dimensional diagram of the partial structure of the anti-loosening mechanism and the adjustment mechanism of the utility model;

[0022] Figure 5 This is a three-dimensional diagram of the local structure of the anti-loosening mechanism of the utility model;

[0023] Figure 6 It is a three-dimensional view of the cutaway shell of the present invention.

[0024] In the figure: 1. Screw; 2. Nut; 3. Circumferential sliding groove; 4. Sliding block; 5. Positioning frame; 6. Connecting block; 7. Threaded rod; 8. Twisting block; 9. Locking block; 10. Locking groove; 11. Threaded hole; 12. Housing; 13. Moving block; 14. Positioning rod; 15. Positioning hole; 16. Traction rod; 17. Spring; 18. Traction block; 19. Pull ring; 20. Guide block; 21. Guide groove; 22. Bearing. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 6 , the utility model provides a technical solution:

[0027] Example 1:

[0028] An automobile anti-loosening nut comprises a screw 1 and a nut 2. The nut 2 is threadedly connected to the surface of the screw 1. A circumferential sliding groove 3 is formed on the top of the nut 2. Two sliding blocks 4 are slidably connected to the inner wall of the circumferential sliding groove 3. A positioning frame 5 is fixedly connected to the top of the sliding block 4. An anti-loosening mechanism is provided on one side of the positioning frame 5. Connecting blocks 6 are fixedly connected on both sides of the positioning frame 5. An adjustment mechanism is provided on the top of the connecting block 6.

[0029] The anti-loosening mechanism includes a threaded rod 7 arranged on one side of the positioning frame 5, one end of the threaded rod 7 is fixedly connected to a twisting block 8, the other end of the threaded rod 7 passes through one side of the positioning frame 5, and the surface of the threaded rod 7 is transmission-connected with a locking block 9. Locking grooves 10 for cooperating with the locking block 9 are provided on both sides of the screw rod 1, and a threaded hole 11 for cooperating with the threaded rod 7 is provided on one side of the locking block 9.

[0030] In this embodiment, it is taken into consideration that when the car is driving, if it encounters a bumpy road section, it will generate large vibrations, which will cause the nut 2 to loosen easily, thereby reducing the tightness of the automobile parts fixed to the screw rod 1 and the nut 2, which is not conducive to use by the user. Therefore, an anti-loosening mechanism is provided. After the nut 2 is gradually moved to an appropriate position on the screw rod 1 by rotating the nut 2, the threaded rod 7 is driven to rotate by rotating the twisting block 8. As the threaded rod 7 rotates, the external thread on its surface squeezes the internal thread of the threaded hole 11, so that the locking block 9 moves along the trajectory of the guide block 20 and the guide groove 21 to the side close to the screw rod 1. Then, the locking block 9 enters the interior of the locking groove 10, making the nut 2 unable to rotate, thereby preventing the nut 2 from loosening.

[0031] The invention solves the problem that when a car is driving, if it encounters a bumpy road, it will generate large vibrations, which will cause the nut 2 to loosen easily, resulting in a decrease in the tightness of the car parts fixed by the screw 1 and the nut 2, which is not conducive to user use.

[0032] The bottom of the locking block 9 is fixedly connected to a guide block 20 , and the inner wall of the positioning frame 5 is provided with a guide groove 21 used in conjunction with the guide block 20 .

[0033] In this embodiment, by providing the guide block 20 and the guide groove 21, when the threaded rod 7 transmits the locking block 9, the locking block 9 is restricted to slide only along the track of the guide block 20 and the guide groove 21, while improving its stability during the sliding process.

[0034] Preferably, a bearing 22 is provided on one side of the twisting block 8 , and the twisting block 8 is rotatably connected to one side of the positioning frame 5 via the bearing 22 .

[0035] In this embodiment, the bearing 22 is provided to support the threaded rod 7 and the twisting block 8, restricting the threaded rod 7 and the twisting block 8 to rotation, while improving the smoothness of the rotation process.

[0036] Example 2:

[0037] On the basis of Example 1, this embodiment takes into account that during use, when the nut 2 is fixed to different automotive parts, its position on the screw 1 is different, which will also cause the locking block 9 and the locking groove 10 to be asymmetrical. The locking block 9 cannot accurately enter the locking groove 10, and the nut 2 cannot be prevented from loosening. The adjustment mechanism in this application includes a shell 12 fixedly connected to the top of the connecting block 6, and a moving block 13 is provided inside the shell 12. The bottom of the moving block 13 is fixedly connected to a positioning rod 14, and the bottom of the positioning rod 14 passes through the bottom of the connecting block 6. A positioning hole 15 for use with the positioning rod 14 is opened on the top of the nut 2, and a traction rod 16 is fixedly connected to the top of the moving block 13. The surface of the traction rod 16 is provided with a spring 17. The top of the spring 17 is fixedly connected to the inner wall of the shell 12, and the bottom of the spring 17 is fixedly connected to the bottom of the moving block 13.

[0038] The present embodiment takes into account that during use, when the nut 2 is fixed to different automobile parts, the position on the screw rod 1 is different, which will also cause the locking block 9 and the locking groove 10 to be asymmetrical, and the locking block 9 cannot accurately enter the locking groove 10, and the nut 2 cannot be prevented from loosening. Therefore, by providing an adjustment mechanism, the pull ring 19 can be pulled upward to drive the traction block 18, the traction rod 16, the moving block 13 and the positioning rod 14 to move upward, so that the positioning rod 14 leaves the positioning hole 15. After that, the position of the positioning frame 5 can be annularly adjusted along the trajectory of the circumferential sliding groove 3 and the sliding block 4 until the locking block 9 on the positioning frame 5 is opposite to the locking groove 10. After that, the pull ring 19 is released, and the elastic force generated by the spring 17 will push the moving block 13 and the positioning rod 14 downward to make the positioning rod 14 enter the corresponding positioning hole 15, completing the adjustment of the position of the locking block 9 so that it can accurately enter the locking groove 10.

[0039] Solution: Considering that the position of the nut 2 on the screw 1 is different when it is fixed to different automobile parts during use, it will also cause the locking block 9 and the locking groove 10 to be asymmetrical, and the locking block 9 cannot accurately enter the locking groove 10, and the problem of not being able to prevent the nut 2 from loosening.

[0040] A traction block 18 is provided on the top of the positioning frame 5 , and a pull ring 19 is fixedly connected to the top of the traction block 18 . The top of the traction rod 16 passes through the top of the housing 12 and is fixedly connected to the bottom of the traction block 18 .

[0041] In this embodiment, by providing the pulling block 18 and the pull ring 19 , when the user pulls the pull ring 19 , the positioning rod 14 can be moved away from the interior of the positioning hole 15 , thereby facilitating the position adjustment of the locking block 9 .

[0042] There are a plurality of positioning holes 15 , which are evenly distributed on the top of the nut 2 .

[0043] In this embodiment, by providing a plurality of positioning rods 14 , after the position of the positioning frame 5 is adjusted, the positioning frame 5 can be quickly fixed by allowing the positioning rods 14 to enter the corresponding positioning holes 15 .

[0044] Working principle: by rotating the nut 2, the nut 2 is gradually moved to the appropriate position on the screw 1, and then the screwing block 8 is rotated to drive the threaded rod 7 to rotate. As the threaded rod 7 rotates, the external thread on its surface squeezes the internal thread of the threaded hole 11, causing the locking block 9 to move along the trajectory of the guide block 20 and the guide groove 21 to the side close to the screw 1. Then the locking block 9 will enter the locking groove 10, making the nut 2 unable to rotate, thereby preventing the nut 2 from loosening.

[0045] When the nut 2 is in use and the position of the nut 2 on the screw 1 is different for fixing different automobile parts, the locking block 9 and the locking groove 10 are not symmetrical, and the locking block 9 cannot accurately enter the locking groove 10, and the nut 2 cannot be prevented from loosening. The pull ring 19 can be pulled upward to drive the traction block 18, the traction rod 16, the moving block 13 and the positioning rod 14 to move upward, so that the positioning rod 14 leaves the positioning hole 15. Then, the position of the positioning frame 5 can be annularly adjusted along the trajectory of the circumferential sliding groove 3 and the sliding block 4 until the locking block 9 on the positioning frame 5 is relative to the locking groove 10. Then, the pull ring 19 is released, and the elastic force generated by the spring 17 pushes the moving block 13 and the positioning rod 14 to move downward, so that the positioning rod 14 enters the corresponding positioning hole 15, completing the adjustment of the position of the locking block 9 so that it can accurately enter the locking groove 10.

[0046] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile anti-loosening nut, comprising a screw (1) and a nut (2), wherein the nut (2) is threadedly connected to the surface of the screw (1), and is characterized in that: A circumferential sliding groove (3) is provided on the top of the nut (2), two sliding blocks (4) are slidably connected to the inner wall of the circumferential sliding groove (3), a positioning frame (5) is fixedly connected to the top of the sliding block (4), an anti-loosening mechanism is provided on one side of the positioning frame (5), connecting blocks (6) are fixedly connected on both sides of the positioning frame (5), and an adjustment mechanism is provided on the top of the connecting block (6); The anti-loosening mechanism comprises a threaded rod (7) arranged on one side of the positioning frame (5), one end of the threaded rod (7) is fixedly connected to a twisting block (8), the other end of the threaded rod (7) passes through one side of the positioning frame (5), the surface of the threaded rod (7) is transmission-connected to a locking block (9), both sides of the screw rod (1) are provided with locking grooves (10) for use with the locking block (9), and one side of the locking block (9) is provided with a threaded hole (11) for use with the threaded rod (7).

2. The automobile anti-loosening nut according to claim 1, characterized in that: The adjustment mechanism comprises a shell (12) fixedly connected to the top of the connecting block (6); a moving block (13) is provided inside the shell (12); a positioning rod (14) is fixedly connected to the bottom of the moving block (13); the bottom of the positioning rod (14) passes through the bottom of the connecting block (6); a positioning hole (15) for use with the positioning rod (14) is opened on the top of the nut (2); a traction rod (16) is fixedly connected to the top of the moving block (13); a spring (17) is sleeved on the surface of the traction rod (16); the top of the spring (17) is fixedly connected to the inner wall of the shell (12); and the bottom of the spring (17) is fixedly connected to the bottom of the moving block (13).

3. The automobile anti-loosening nut according to claim 2, characterized in that: A traction block (18) is provided on the top of the positioning frame (5), a pull ring (19) is fixedly connected to the top of the traction block (18), and the top of the traction rod (16) passes through the top of the shell (12) and is fixedly connected to the bottom of the traction block (18).

4. The automobile anti-loosening nut according to claim 2, characterized in that: The number of the positioning holes (15) is several and evenly distributed on the top of the nut (2).

5. The automobile lock nut according to claim 1, characterized in that: The bottom of the locking block (9) is fixedly connected to a guide block (20), and the inner wall of the positioning frame (5) is provided with a guide groove (21) used in conjunction with the guide block (20).

6. The automobile lock nut according to claim 1, characterized in that: A bearing (22) is provided on one side of the twisting block (8), and is rotationally connected to one side of the positioning frame (5) via the bearing (22).

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