Anti-loosening combined screw

Abstract

The utility model belongs to the technical field of combined screws, and provides an anti-loosening combined screw which comprises a threaded sleeve, a screw rod is in threaded connection with the threaded sleeve, a base plate is sleeved on the screw rod, an inserting column is fixedly connected with the base plate, a circular ring is fixedly connected with the threaded sleeve, a hollow groove is formed in the circular ring, and the inserting column is fixedly connected with the threaded sleeve. A hollow groove is formed in the base, a spring is fixedly connected into the hollow groove, a wedge block is fixedly connected to the end, away from the hollow groove, of the spring, a clamping plate is fixedly connected to the wedge block, a clamping groove is formed in the inserting column, and the inserting column is connected with the clamping plate in a clamped mode through the clamping groove. According to the utility model, the insertion column slides downwards on the wedge-shaped block to drive the wedge-shaped block to extrude the spring towards the rear end, when the clamping groove in the insertion column slides to be in contact with the clamping plate, the spring releases elastic force to bounce the clamping plate into the clamping groove, and the base plate is stably fixed on the threaded sleeve, so that the upper end of the screw can be fixed, and the base plate is prevented from shaking; therefore, the loosening performance of the screw can be enhanced.

Description

Technical Field

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

[0002] Screws are an indispensable material for fixing objects. There are many types of screws, among which combination screws are a common fixing screw. Traditional combination screws often become loose between objects due to long time in use, and their anti-loosening property is not strong. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an anti-loosening combined screw.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a combination screw for preventing loosening, comprising a threaded sleeve, a screw rod being threadedly connected to the threaded sleeve, a pad being sleeved on the screw rod, a plug post being fixedly connected to the pad, a circular ring being fixedly connected to the threaded sleeve, a hollow groove being provided on the circular ring, a spring being fixedly connected in the hollow groove, a wedge block being fixedly connected to one end of the spring away from the hollow groove, a clamping plate being fixedly connected to the wedge block, a clamping groove being provided on the plug post, and the plug post being clamped to the clamping plate through the clamping groove.

[0005] As a further description of the above technical solution:

[0006] The threaded sleeve is provided with an external thread, the external thread is threadedly connected with a threaded ring, and the threaded ring is fitted on the circular ring.

[0007] As a further description of the above technical solution:

[0008] One end of the screw rod away from the threaded sleeve is fixedly connected with a hexagonal nut, and the hexagonal nut is located just above the pad.

[0009] As a further description of the above technical solution:

[0010] A slide groove is arranged in the hollow groove, a slider is slidably connected to the slide groove, and one end of the slider away from the slide groove is fixedly connected to the wedge block.

[0011] As a further description of the above technical solution:

[0012] The plug posts are provided in two groups, and the two groups of the plug posts are respectively located at two ends of the pad.

[0013] As a further description of the above technical solution:

[0014] The threaded sleeve is made of stainless steel.

[0015] As a further description of the above technical solution:

[0016] The diameter of the backing plate is greater than the diameter of the hexagonal nut.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, the plug column slides downward on the wedge block to drive the wedge block to squeeze the spring at the rear end. When the slot on the plug column slides to contact the card plate, the spring releases the elastic force to bounce the card plate into the slot, firmly fixing the pad on the threaded sleeve, and then the upper end of the screw can be fixed to prevent the pad from shaking, thereby enhancing the loosening performance of the screw.

[0019] 2. In the utility model, an external thread is provided on the threaded sleeve, and a threaded ring is threadedly connected to the external thread. The threaded ring can fix the lower end of the screw and the object to prevent the lower end of the screw from shaking, thereby further enhancing the loosening flexibility of the screw and improving the fixation of the screw to the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective view of an anti-loosening combined screw proposed by the utility model;

[0021] Figure 2 A top perspective view of an anti-loosening combined screw proposed by the utility model;

[0022] Figure 3 A cross-sectional view of an anti-loosening combined screw proposed by the utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Threaded sleeve; 2. Circular ring; 3. Hollow groove; 4. Spring; 5. Wedge block; 6. Clamp plate; 7. Screw; 8. Hexagonal nut; 9. Backing plate; 10. Plug column; 11. Clamp groove; 12. Threaded ring; 13. External thread; 14. Slide groove; 15. Slider. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 4 The utility model provides an embodiment: an anti-loosening combined screw, including a threaded sleeve 1, a screw 7 is threadedly connected to the threaded sleeve 1, a backing plate 9 is sleeved on the screw 7, a plug post 10 is fixedly connected to the backing plate 9, a ring 2 is fixedly connected to the threaded sleeve 1, a hollow groove 3 is provided on the ring 2, a spring 4 is fixedly connected in the hollow groove 3, a wedge block 5 is fixedly connected to the end of the spring 4 away from the hollow groove 3, a clamping plate 6 is fixedly connected to the wedge block 5, and the plug post 1 0 is provided with a card slot 11, and the plug post 10 is connected to the card plate 6 through the card slot 11. The plug post 10 slides downward on the wedge block 5 to drive the wedge block 5 to squeeze the spring 4 at the rear end. When the card slot 11 on the plug post 10 slides to contact the card plate 6, the spring 4 releases the elastic force to bounce the card plate 6 into the card slot 11, and the pad 9 is firmly fixed on the threaded sleeve 1, so that the upper end of the screw can be fixed to prevent the pad 9 from shaking, thereby enhancing the loosening performance of the screw.

[0028] The threaded sleeve 1 is provided with an external thread 13, and the external thread 13 is threadedly connected with a threaded ring 12, and the threaded ring 12 fits on the circular ring 2. By providing the external thread 13 on the threaded sleeve 1 and the threaded ring 12 on the external thread 13, the threaded ring 12 can fix the lower end of the screw and the object to prevent the lower end of the screw from shaking, thereby further enhancing the loosening flexibility of the screw and improving the fixation of the screw to the object. The end of the screw rod 7 away from the threaded sleeve 1 is fixedly connected with a hexagonal nut 8, and the hexagonal nut 8 is located directly above the pad 9. A sliding groove 14 is provided in the hollow groove 3, and a slider 15 is slidably connected to the sliding groove 14. The end of the slider 15 away from the sliding groove 14 is fixedly connected to the wedge block 5. There are two groups of plug posts 10, and the two groups of plug posts 10 are respectively located at both ends of the pad 9. The material of the threaded sleeve 1 is stainless steel, and the diameter of the pad 9 is larger than the diameter of the hexagonal nut 8.

[0029] Working principle: first, pass the threaded sleeve 1 through the hole of the object to be connected, and then thread the threaded ring 12 on the external thread 13 to fix the threaded ring 12 on the object. The threaded ring 12 can fix the lower end of the screw and the object to prevent the lower end of the screw from shaking, thereby further enhancing the loosening flexibility of the screw and improving the fixation of the screw to the object. Then, the screw rod 7 is threadedly connected to the threaded sleeve 1, so that the plug post 10 on the pad 9 slides downward on the wedge block 5, driving the wedge block 5 to squeeze the spring 4 at the rear end. When the slot 11 on the plug post 10 slides to contact the card plate 6, the spring 4 releases the elastic force to bounce the card plate 6 into the slot 11, and the pad 9 is firmly fixed on the threaded sleeve 1, so that the screw and the upper end of the object can be fixed to prevent the pad 9 from shaking, thereby enhancing the loosening flexibility of the screw.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combination screw for preventing loosening, comprising a threaded sleeve (1), characterized in that: The threaded sleeve (1) is threadedly connected with a screw rod (7), a backing plate (9) is sleeved on the screw rod (7), a plug post (10) is fixedly connected to the backing plate (9), a circular ring (2) is fixedly connected to the threaded sleeve (1), a hollow groove (3) is provided on the circular ring (2), a spring (4) is fixedly connected in the hollow groove (3), a wedge block (5) is fixedly connected to one end of the spring (4) away from the hollow groove (3), a clamping plate (6) is fixedly connected to the wedge block (5), a clamping groove (11) is provided on the plug post (10), and the plug post (10) is clamped to the clamping plate (6) through the clamping groove (11).

2. The anti-loosening combined screw according to claim 1, characterized in that: The threaded sleeve (1) is provided with an external thread (13), a threaded ring (12) is threadedly connected to the external thread (13), and the threaded ring (12) is fitted on the circular ring (2).

3. The anti-loosening combined screw according to claim 1, characterized in that: One end of the screw rod (7) away from the threaded sleeve (1) is fixedly connected to a hexagonal nut (8), and the hexagonal nut (8) is located directly above the pad (9).

4. The anti-loosening combined screw according to claim 1, characterized in that: A slide groove (14) is provided in the hollow groove (3), a slider (15) is slidably connected to the slide groove (14), and one end of the slider (15) away from the slide groove (14) is fixedly connected to the wedge block (5).

5. The anti-loosening combined screw according to claim 1, characterized in that: The plug posts (10) are provided in two groups, and the two groups of the plug posts (10) are respectively located at two ends of the pad (9).

6. The anti-loosening combined screw according to claim 1, characterized in that: The threaded sleeve (1) is made of stainless steel.

7. The anti-loosening combined screw according to claim 1, characterized in that: The diameter of the backing plate (9) is greater than the diameter of the hexagonal nut (8).

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