Screw locking device

Abstract

The utility model provides a screw locking device, which relates to the technical field of screw locking devices, and comprises a first fixing plate, the inner wall of the first fixing plate is in threaded connection with a threaded nail, the inner wall of the threaded nail is in sliding connection with a sliding block, the outer surface of the sliding block is provided with a first spring, one end of the first spring is fixedly connected with a fixing block, and the other end of the first spring is fixedly connected with a second fixing plate. The inner wall of the sliding block is fixedly connected with a moving shaft. According to the device, the moving shaft is arranged in the threaded nail, the first fixing plate and the second fixing plate can be fixed through the threaded nail, then the moving shaft slides in the threaded nail in the threaded nail to drive the ball to slide along the inner wall of the sliding rail, and the ball can penetrate through the round hole to be clamped with the third fixing plate; the fastening of the first fixing plate and the second fixing plate can be effectively guaranteed, the threaded nails are prevented from loosening, and the normal operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw locking device technical field especially relates to a screw locking device. BACKGROUND

[0002] Screw locking device is a kind of device for fixing and locking screw and other fasteners, mainly prevent loosening and falling caused by vibration, impact and thermal expansion etc.

[0003] In prior art, spring cover type return mechanism needs to use screw to connect spring assembly and other components during assembly, but spring in spring cover type return mechanism will produce vibration and impact when releasing energy, thereby causing screw loosening, leading to equipment failure. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of prior art, i.e.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a screw locking device, comprising: a first fixed plate, the inner wall of the first fixed plate is connected with a threaded nail in a threaded mode, the inner wall of the threaded nail is connected with a sliding block in a sliding mode, the outer surface of the sliding block is provided with a first spring, one end of the first spring is fixedly connected with a fixed block, the inner wall of the sliding block is fixedly connected with a moving shaft, and the inner wall of the threaded nail is fixedly connected with a first sliding shaft close to one end.

[0006] Preferably, the other end of the first spring is fixedly connected with the outer surface of the sliding block, and the inner wall of the fixed block is connected with the outer surface of the moving shaft in a sliding mode.

[0007] Preferably, one end of the moving shaft is fixedly connected with a first moving block, and the outer surface of the first sliding shaft is provided with two evenly arranged circular holes.

[0008] Preferably, the outer surface of the first moving block is fixedly connected with two evenly arranged sliding rails, the inner wall of the two sliding rails is slidably connected with two spheres, and the outer surface of the two spheres is respectively matched with the inner wall of the two circular holes.

[0009] Preferably, the outer surface of the threaded nail is connected with a second fixed plate in a threaded mode, and the outer surface of the second fixed plate is fixedly connected with a third fixed plate.

[0010] Preferably, the outer surface of the first sliding shaft is in close fit with the inner wall of the third fixed plate, and the outer surfaces of the two spheres are in clamping fit with the inner wall of the third fixed plate.

[0011] Preferably, the outer surface of the second fixed plate is provided with a second spring, one end of the second spring is fixedly connected with the outer surface of the second fixed plate, the other end of the second spring is fixedly connected with a second moving block, the outer surface of the second moving block is in sliding fit with the inner wall of a second sliding shaft fixedly sleeved on the outer surface of the second fixed plate.

[0012] Compared with the prior art, the screw locking device has the advantages and positive effects that,

[0013] 1. In the utility model, the moving shaft is arranged in the threaded peg, the threaded peg fixes the first fixed plate and the second fixed plate, then the moving shaft in the threaded peg slides in the threaded peg to drive the spheres to slide along the inner wall of the sliding rail, the spheres are clamped with the third fixed plate through the round holes, the fixing of the threaded peg in the first fixed plate and the second fixed plate is reinforced, the fastening of the first fixed plate and the second fixed plate is effectively ensured, the threaded peg is prevented from loosening, and the normal operation of the equipment is ensured.

[0014] 2. In the utility model, the sliding rail is arranged to limit the movement path of the spheres, so that the spheres are effectively prevented from sliding on the outer surface of the first moving block, the clamping of the spheres along the sliding rail and the round holes is effectively ensured, the spheres and the third fixed plate are effectively clamped, and the stability of the screw locking device is ensured. DRAWINGS

[0015] Figure 1 A front view of the screw locking device is provided for the utility model;

[0016] Figure 2 A front view of the threaded peg of the screw locking device is provided for the utility model;

[0017] Figure 3 A partial structure sectional view of the threaded peg of the screw locking device is provided for the utility model;

[0018] Figure 4 A front view of the first spring of the screw locking device is provided for the utility model;

[0019] Figure 5 A front view of the moving shaft of the screw locking device is provided for the utility model;

[0020] Figure 6 A front view of the first sliding shaft of the screw locking device is provided for the utility model;

[0021] Figure 7 A front perspective view of the second fixing plate of the screw fastening device is provided for this utility model;

[0022] Figure 8 A sectional perspective view of the second fixing plate portion of a screw fastening device is provided for this utility model.

[0023] Figure 9 for Figure 8 Enlarged 3D view at point A;

[0024] Figure 10 This utility model presents a sectional perspective view of the second sliding shaft portion of a screw fastening device.

[0025] Legend: 1. First fixed plate; 2. Threaded pin; 3. Slider; 4. First spring; 5. Fixed block; 6. Moving shaft; 7. Ball; 8. First sliding shaft; 9. Second fixed plate; 10. Third fixed plate; 11. Round hole; 12. First moving block; 13. Second spring; 14. Second sliding shaft; 15. Second moving block; 16. Slide rail. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1: As Figures 1-10 As shown, this utility model provides a screw fastening device, including: a first fixing plate 1, a threaded nail 2 threadedly connected to the inner wall of the first fixing plate 1, a slider 3 slidably connected to the inner wall of the threaded nail 2, a first spring 4 provided on the outer surface of the slider 3, a fixing block 5 fixedly connected to one end of the first spring 4, a moving shaft 6 fixedly connected to the inner wall of the slider 3, a first sliding shaft 8 fixedly connected to one end of the inner wall of the threaded nail 2, the other end of the first spring 4 fixedly connected to the outer surface of the slider 3, the inner wall of the fixing block 5 slidably connected to the outer surface of the moving shaft 6, a first moving block 12 fixedly connected to one end of the moving shaft 6, two evenly arranged circular holes 11 opened on the outer surface of the first sliding shaft 8, a second fixing plate 9 threadedly connected to the outer surface of the threaded nail 2, and a third fixing plate 10 fixedly connected to the outer surface of the second fixing plate 9.

[0029] The effect achieved by the whole embodiment 1 is that when the screw locking device is in use, the second fixed plate 9 needs to be fixedly connected with the first fixed plate 1, the staff needs to rotate the threaded bolt 2, align the threaded bolt 2 with the inside of the center of the first fixed plate 1, and rotate until the outer surface of the threaded bolt 2 is in close contact with the outer surface of the first fixed plate 1, and then the threaded bolt 2 is threadedly connected with the first fixed plate 1, and then the center of the second fixed plate 9 is aligned with the outer surface of the threaded bolt 2, and the second sliding shaft 14 is rotated, which will simultaneously drive the second moving block 15, the second spring 13 and the second fixed plate 9 to rotate, and when the second fixed plate 9 rotates, it will drive the third fixed plate 10 to rotate, until the inside of the second fixed plate 9 is completely in close contact with the outer surface of the threaded bolt 2, at which time the threaded bolt 2 is threadedly connected with the inside of the second fixed plate 9, and then the staff presses the moving shaft 6 towards the inside of the threaded bolt 2, which will drive the sliding block 3 to slide along the inside of the threaded bolt 2, and when the sliding block 3 slides, it will press the first spring 4 towards the direction of the fixed block 5, and at the same time the outer surface of the moving shaft 6 will slide along the inside of the fixed block 5, and when the moving shaft 6 moves, it will drive the first moving block 12 to move, which will drive the sliding rail 16 and the ball 7 to move together, and the ball 7 will slide along the inside of the sliding rail 16 due to its own gravity until the outer surface of the ball 7 slides into the circular hole 11, and then the staff stops pressing the moving shaft 6, at which time the extension of the first spring 4 will drive the sliding block 3 to slide, and the sliding block 3 will slide along the inside of the threaded bolt 2, and at the same time the sliding block 3 will drive the moving shaft 6 to move, and the outer surface of the moving shaft 6 will slide along the inside of the fixed block 5, and at the same time the moving shaft 6 will drive the first moving block 12 to slide along the inside of the first sliding shaft 8, and the first moving block 12 will drive the sliding rail 16 to move at the same time, until the inside of the sliding rail 16 exerts an outward force on the ball 7, at which time the outer surface of the ball 7 will be extruded outward by the sliding rail 16, and the ball 7 will be engaged with the inside of the third fixed plate 10 through the circular hole 11, at which time the first fixed plate 1 is tightly fixed with the second fixed plate 9 and the third fixed plate 10, and when the second moving block 15 slides along the inside of the second sliding shaft 14, it will drive the second spring 13 to move, and the second spring 13 will vibrate and shake the second fixed plate 9 when it moves, and the movement of the first moving block 12 driven by the moving shaft 6 can engage the ball 7 with the third fixed plate 10, and at the same time it can reinforce the threaded connection of the threaded bolt 2 with the first fixed plate 1 and the second fixed plate 9, which can effectively ensure the fastening of the first fixed plate 1 and the second fixed plate 9, prevent the threaded bolt 2 from loosening, and ensure the normal operation of the equipment.

[0030] Embodiment 2: as Figures 1-10As shown, the outer surface of the first moving block 12 is fixedly connected with two uniformly arranged slide rails 16, the inner walls of the two slide rails 16 are slidably connected with two spheres 7, the outer surfaces of the two spheres 7 respectively fit the inner walls of the two circular holes 11, the outer surface of the first slide shaft 8 fits the inner wall of the third fixed plate 10, the outer surfaces of the two spheres 7 are clamped with the inner wall of the third fixed plate 10, the outer surface of the second fixed plate 9 is provided with a second spring 13, one end of the second spring 13 is fixedly connected with the outer surface of the second fixed plate 9, the other end of the second spring 13 is fixedly connected with a second moving block 15, the outer surface of the second moving block 15 is slidably sleeved with a second slide shaft 14.

[0031] The effect achieved by the whole embodiment 2 is that when the moving shaft 6 is pressed, the moving shaft 6 drives the sliding block 3 to slide along the inside of the threaded screw 2, at this time the moving shaft 6 drives the first moving block 12 to move, the first moving block 12 drives the slide rail 16 to move when moving, the slide rail 16 drives the sphere 7 to move when moving, the sphere 7 slides along the inside of the slide rail 16 into the circular hole 11, the slide rail 16 limits the moving path of the sphere 7, so that the sphere 7 can move into the circular hole 11, the sphere 7 is clamped with the third fixed plate 10 through the circular hole 11, so that the stability of the screw locking device can be effectively guaranteed.

[0032] Working principle: when the screw locking device is used, the staff needs to rotate the threaded screw 2, the first fixed plate 1 and the second fixed plate 9 are fixed through the threaded screw 2, then the moving shaft 6 is pressed into the inside of the threaded screw 2, the moving shaft 6 drives the sliding block 3 to slide along the inside of the threaded screw 2, the sliding block 3 extrudes the first spring 4 when sliding, at the same time the moving shaft 6 drives the first moving block 12 to slide along the inside of the first slide shaft 8, the first moving block 12 drives the slide rail 16 and the sphere 7 to move together, the sphere 7 slides along the inside of the slide rail 16 into the circular hole 11 due to gravity, when the staff no longer presses the moving shaft 6, the stretching force of the first spring 4 drives the sliding block 3 to slide, the sliding block 3 drives the moving shaft 6 to move, the moving shaft 6 drives the first moving block 12 to slide along the inside of the first slide shaft 8, the first moving block 12 drives the slide rail 16 to move when sliding, the slope of the slide rail 16 extrudes the sphere 7 when moving, the sphere 7 moves into the circular hole 11, at this time the slide rail 16 continues to extrude the sphere 7, at this time the sphere 7 is clamped with the inside of the third fixed plate 10 through the circular hole 11, the sphere 7 is clamped with the third fixed plate 10 through the movement of the moving shaft 6, at the same time the threaded connection between the first fixed plate 1 and the second fixed plate 9 is reinforced through the threaded screw 2, the fastening of the first fixed plate 1 and the second fixed plate 9 can be effectively guaranteed, the threaded screw 2 is prevented from loosening, and the normal operation of the equipment is guaranteed.

[0033] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A screw locking device comprising: The first fixed plate (1) is characterized in that the inner wall of the first fixed plate (1) is threadedly connected with a threaded pin (2), the inner wall of the threaded pin (2) is slidably connected with a sliding block (3), the outer surface of the sliding block (3) is provided with a first spring (4), one end of the first spring (4) is fixedly connected with a fixed block (5), the inner wall of the sliding block (3) is fixedly connected with a moving shaft (6), and the inner wall of the threaded pin (2) is fixedly connected with a first sliding shaft (8) close to one end.

2. A screw locking device according to claim 1, wherein: The other end of the first spring (4) is fixedly connected with the outer surface of the sliding block (3), and the inner wall of the fixed block (5) is slidably connected with the outer surface of the moving shaft (6).

3. A screw locking device according to claim 2, wherein: One end of the moving shaft (6) is fixedly connected with a first moving block (12), and the outer surface of the first sliding shaft (8) is provided with two evenly arranged circular holes (11).

4. A screw locking device according to claim 3, wherein: The outer surface of the first moving block (12) is fixedly connected with two evenly arranged sliding rails (16), the inner walls of the two sliding rails (16) are slidably connected with two spheres (7), and the outer surfaces of the two spheres (7) are respectively fitted with the inner walls of the two circular holes (11).

5. A screw locking device according to claim 4, wherein: The outer surface of the threaded pin (2) is threadedly connected with a second fixed plate (9), and the outer surface of the second fixed plate (9) is fixedly connected with a third fixed plate (10).

6. A screw locking device according to claim 5, wherein: The outer surface of the first sliding shaft (8) is fitted with the inner wall of the third fixed plate (10), and the outer surfaces of the two spheres (7) are clamped with the inner wall of the third fixed plate (10).

7. A screw locking device according to claim 6, wherein: The outer surface of the second fixed plate (9) is provided with a second spring (13), one end of the second spring (13) is fixedly connected with the outer surface of the second fixed plate (9), the other end of the second spring (13) is fixedly connected with a second moving block (15), and the outer surface of the second fixed plate (9) is fixedly provided with a second sliding shaft (14), and the outer surface of the second moving block (15) is slidably connected with the inner wall of the second sliding shaft (14). ​

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