Anti-loosening screw

Abstract

The utility model discloses an anti-loosening screw, and relates to the technical field of anti-loosening screws, the anti-loosening screw comprises a screw head, the bottom of the screw head is fixedly connected with a screw rod, the outer side of the screw rod is in threaded connection with a nut, a fixing mechanism is arranged in the nut, the outer side of the screw head is fixedly connected with two first connecting blocks, and the two first connecting blocks are fixedly connected with the screw rod. Two fixing screws are connected to the interior of the first connecting block in a threaded mode, and a clamping mechanism is arranged at the bottom of the first connecting block. The beneficial effects are that through the adoption of the fixing mechanism, a nut, a screw rod, a second spring, a connecting rod, a third groove, a clamping block and a fourth groove can be matched with each other during use; the stability of the screw head and the screw rod during use is effectively improved, the nut is located below a fixed object when the screw rod is located in the fixed object, and looseness is effectively avoided by fixing the nut through the fixing mechanism.

Description

Technical Field

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

[0002] Screws are a common construction component, mostly used to fix two or more separated objects. Usually, the tail of the screw is aligned with the object to be fixed, and axial pressure and radial rotational force are applied to the screw through a screwdriver, wrench or other power device, so that the screw drills into the target object. However, during the use process after the fixation is completed, due to various internal stresses and its own factors, the screws loosen, resulting in the object not being fixed firmly, reducing the safety of use. Therefore, it is necessary to improve the anti-loosening effect of the screws. To this end, we propose an anti-loosening screw. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-loosening screw, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: an anti-loosening screw, comprising a screw head, a screw rod fixedly connected to the bottom of the screw head, a nut threadedly connected to the outer side of the screw rod, a fixing mechanism arranged inside the nut, two first connecting blocks fixedly connected to the outer side of the screw head, two fixing screws threadedly connected to the inner side of the first connecting block, and a clamping mechanism arranged at the bottom of the first connecting block.

[0005] Preferably, the fixing mechanism includes two third grooves, which are opened inside the nut and located on both sides of the screw rod, a second spring is arranged inside the third groove, one end of the second spring is fixedly connected with a clamping block, the clamping block is slidably connected to the third groove, one side of the clamping block is fixedly connected with a connecting rod located inside the second spring, one end of the connecting rod is fixedly connected with a pull ring located on the outside of the nut, which is conducive to fixing the fixing screw and preventing the fixing screw from loosening.

[0006] Preferably, the clamping mechanism includes a second connecting block, the second connecting block is fixedly connected to the bottom of the first connecting block and is located on one side of the fixing screw, the second connecting block is internally slidably connected with a fixing pin, one end of the fixing pin is fixedly connected with a disc on the side away from the fixing screw, a first spring is provided on the side where the disc and the second connecting block are close to each other and located on the outside of the fixing pin, and one side of the disc is fixedly connected with a pull rod, which is conducive to fixing the screw rod and can effectively prevent the screw rod from loosening.

[0007] Preferably, three fourth grooves are provided on the outer side and on the corresponding two sides of the screw rod, and the clamping block is clamped in the fourth grooves.

[0008] Preferably, four first grooves are formed on the outer side of the fixing screw, and the fixing pin is engaged with the first grooves.

[0009] Preferably, the screw head and the top of the fixing screw are both provided with a second groove, and the second groove is cross-shaped.

[0010] The utility model provides an anti-loosening screw, which has the following beneficial effects:

[0011] 1. The anti-loosening screw adopts a fixing mechanism, and can effectively improve the stability of the screw head and the screw rod when in use through the mutual cooperation of the nut, the screw rod, the second spring, the connecting rod, the third slot, the clamping block, and the fourth slot. When the screw rod is inside the fixed object, the nut is located below the fixed object, and the nut is fixed by the fixing mechanism, which effectively prevents loosening.

[0012] 2. The anti-loosening screw adopts a clamping mechanism, and can fix the fixing screw through the mutual cooperation of the first groove, the second connecting block, the fixing pin, the first spring, the pull rod, and the disc during use. The screw head is fixed by the cooperation of the fixing screw, which can effectively prevent the screw head from loosening at the fixed object and effectively improve the stability during fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the nut of the utility model;

[0015] Figure 3 It is a top view of the utility model;

[0016] Figure 4 For this utility model Figure 2 A in the enlarged view;

[0017] Figure 5 For this utility model Figure 2 Enlarged view of point B in .

[0018] In the figure: 1, screw head; 2, fixing screw; 3, nut; 4, pull ring; 5, screw rod; 6, first slot; 7, first connecting block; 8, second connecting block; 9, fixing pin; 10, second slot; 11, first spring; 12, pull rod; 13, disc; 14, second spring; 15, connecting rod; 16, third slot; 17, clamp block; 18, fourth slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 5 The utility model provides a technical solution: an anti-loosening screw, comprising a screw head 1, a screw rod 5 is fixedly connected to the bottom of the screw head 1, a nut 3 is threadedly connected to the outer side of the screw rod 5, a fixing mechanism is arranged inside the nut 3, two first connecting blocks 7 are fixedly connected to the outer side of the screw head 1, two fixing screws 2 are threadedly connected to the inner side of the first connecting block 7, and a clamping mechanism is arranged at the bottom of the first connecting block 7.

[0021] The fixing mechanism includes two third grooves 16, which are opened inside the nut 3 and located on both sides of the screw rod 5. The second spring 14 is arranged inside the third groove 16, and one end of the second spring 14 is fixedly connected to a clamping block 17, and the clamping block 17 is slidably connected to the third groove 16. A connecting rod 15 is fixedly connected to one side of the clamping block 17 and located inside the second spring 14, and a pull ring 4 is fixedly connected to one end of the connecting rod 15 and located outside the nut 3. By inserting the screw rod 5 into the surface of the fixed object, by placing the nut 3 on the screw rod 5 At the bottom of the tool, by rotating the fixing screw 2 and pulling the pull ring 4, the pull ring 4 drives the block 17 to leave the fourth slot 18 through the connecting rod 15, so that the block 17 returns to the third slot 16 and squeezes the second spring 14, so that after rotation, the nut 3 is tightened according to the thickness of the fixed object, and the pull ring 4 is loosened, so that the compressed second spring 14 rebounds and the block 17 is stuck in the fourth slot 18, thereby fixing the nut 3, which is beneficial to fixing the fixing screw 2 and preventing the fixing screw 2 from loosening.

[0022] The clamping mechanism includes a second connecting block 8, which is fixedly connected to the bottom of the first connecting block 7 and is located on one side of the fixing screw 2. A fixing pin 9 is slidably connected inside the second connecting block 8, and a disc 13 is fixedly connected to one end of the fixing pin 9 away from the fixing screw 2. A first spring 11 is arranged on the side where the disc 13 and the second connecting block 8 are close to each other and are located on the outside of the fixing pin 9. A pull rod 12 is fixedly connected to one side of the disc 13. The disc 13 is pulled by the pull rod 12, so that the disc 13 drives the fixing pin 9 to leave the inside of the first groove 6 and stretch the first spring 11. The fixing screw 2 is rotated so that the fixing screw 2 is fixed to the surface of the fixed object, and the pull rod 12 is loosened so that the first spring 11 rebounds and drives one end of the fixing pin 9 to be clamped into the inside of the first groove 6, thereby fixing the screw head 1, which is beneficial to fixing the screw rod 5 and can effectively prevent the screw rod 5 from loosening.

[0023] Three fourth grooves 18 are provided on the outer side and on the corresponding two sides of the screw rod 5, and the clamping block 17 is clamped with the fourth groove 18. Four first grooves 6 are provided on the outer side of the fixing screw 2, and the fixing pin 9 is clamped with the first groove 6. The top of the screw head 1 and the fixing screw 2 are both provided with a second groove 10, and the second groove 10 is cross-shaped.

[0024] In summary, when the anti-loosening screw is used, the staff first inserts the screw rod 5 into the surface of the fixed object, places the nut 3 at the bottom of the screw rod 5, rotates the fixing screw 2 and pulls the pull ring 4, so that the pull ring 4 drives the block 17 to leave the inside of the fourth groove 18 through the connecting rod 15, so that the block 17 returns to the inside of the third groove 16, and squeezes the second spring 14, so that after rotation, the nut 3 is tightened according to the thickness of the fixed object, and the pull ring 4 is loosened, so that the compressed second spring 14 rebounds and the block 17 is stuck in the inside of the fourth groove 18, thereby fixing the nut 3, and pulling the disc 13 through the pull rod 12, so that the disc 13 drives the fixing pin 9 to leave the inside of the first groove 6, and stretches the first spring 11, rotates the fixing screw 2, so that the fixing screw 2 is fixed to the surface of the fixed object, and loosens the pull rod 12, so that the first spring 11 rebounds and drives one end of the fixing pin 9 to be stuck in the inside of the first groove 6, thereby fixing the screw head 1.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-loosening screw, comprising a screw head (1), characterized in that: The bottom of the screw head (1) is fixedly connected to a screw rod (5), the outer side of the screw rod (5) is threadedly connected to a nut (3), the interior of the nut (3) is provided with a fixing mechanism, the outer side of the screw head (1) is fixedly connected to two first connecting blocks (7), the interior of the first connecting block (7) is threadedly connected to two fixing screws (2), and the bottom of the first connecting block (7) is provided with a clamping mechanism.

2. The anti-loosening screw according to claim 1, characterized in that: The fixing mechanism comprises two third grooves (16), the two third grooves (16) are opened inside the nut (3) and are located on both sides of the screw rod (5), a second spring (14) is arranged inside the third groove (16), one end of the second spring (14) is fixedly connected with a clamping block (17), the clamping block (17) is slidably connected to the third groove (16), one side of the clamping block (17) and located inside the second spring (14) is fixedly connected with a connecting rod (15), and one end of the connecting rod (15) and located outside the nut (3) is fixedly connected with a pull ring (4).

3. The anti-loosening screw according to claim 1, characterized in that: The clamping mechanism comprises a second connecting block (8), the second connecting block (8) is fixedly connected to the bottom of the first connecting block (7) and is located on one side of the fixing screw (2), the interior of the second connecting block (8) is slidably connected with a fixing pin (9), one end of the fixing pin (9) is fixedly connected with a disc (13) on the side away from the fixing screw (2), a first spring (11) is provided on the side where the disc (13) and the second connecting block (8) are close to each other and is located on the outside of the fixing pin (9), and one side of the disc (13) is fixedly connected with a pull rod (12).

4. The anti-loosening screw according to claim 2, characterized in that: Three fourth grooves (18) are provided on the outer side and on the corresponding two sides of the screw rod (5), and the clamping block (17) is clamped with the fourth grooves (18).

5. The anti-loosening screw according to claim 3, characterized in that: Four first grooves (6) are formed on the outer side of the fixing screw (2), and the fixing pin (9) is engaged with the first grooves (6).

6. The anti-loosening screw according to claim 1, characterized in that: The tops of the screw head (1) and the fixing screw (2) are both provided with a second groove (10), and the second groove (10) is in a cross shape.

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