Reverse spiral asymmetric stop spring washer structure

Abstract

The utility model discloses a reverse spiral asymmetric locking spring washer structure which comprises a spring washer body, a fracture and an upwarp tip end, the fracture is arranged on one side of the spring washer body, the upwarp tip end is arranged at one end of the spring washer body, a lower upwarp tip end is arranged at the end, away from the upwarp tip end, of the spring washer body, and the upper upwarp tip end is arranged at the other end of the spring washer body. Reinforcing ribs are arranged in the middle of an inner ring of the spring washer body, limiting grooves are formed in the two sides of the inner wall of the spring washer body, telescopic rods are connected to the inner walls of the grooves, the ends, away from the limiting grooves, of the telescopic rods penetrate through the grooves to be connected with clamping pads, and springs are wound around the outer walls of the telescopic rods. The clamping pads on the two sides can abut against the studs, the clamping pads on the two sides can abut against the studs all the time when the springs are pressed to contract for the studs with different diameters, and therefore the spring washer body and the studs are located at the same circle center all the time, and the phenomenon that the spring washer body is prone to deviation in the rotating process of the nut is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spring washers, in particular to a reverse spiral asymmetric retaining spring washer structure. Background Art

[0002] Spring washers are widely used in the load-bearing and non-load-bearing structures of general mechanical products. They are characterized by low cost and easy installation, and are suitable for parts with frequent assembly and disassembly. The application number CN202010944038.X is retrieved, and the anti-helical asymmetric stop spring washer has a prismatic blade and a pointed cone structure. As long as the prismatic blade cuts into / the pointed cone penetrates into the nut and the workpiece or the flat washer, the nut will never loosen. Even if the spring washer is fatigued after using it for a period of time, the nut will not loosen because the blade cuts into / the pointed cone penetrates into the nut and the workpiece or the flat washer, thereby greatly improving the service life of various equipment and reducing the amount of maintenance.

[0003] Similar to the above-mentioned reverse spiral asymmetric retaining spring washer: although the nut will not loosen by cutting into the nut and the workpiece or flat washer with a blade / piercing the nut and the workpiece or flat washer with a pointed cone, the inner diameter of the spring washer is usually larger than the diameter of the stud at this stage, and it is easy to offset during the rotation of the nut, making it difficult to ensure that its center coincides with the center of the stud, which can easily cause offset and thus unbalanced reaction force on the nut, affecting the use effect.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an anti-helical asymmetric retaining spring washer structure is proposed to achieve a more practical purpose. Utility Model Content

[0005] The purpose of the utility model is to provide a reverse helical asymmetric retaining spring washer structure to solve the problem proposed in the above-mentioned background technology that the inner diameter of the reverse helical asymmetric retaining spring washer is usually larger than the diameter of the stud at the current stage, and it is easy to offset during the rotation of the nut, and it is difficult to ensure that its center coincides with the center of the stud, which easily causes offset and thus unbalanced reaction force on the nut, affecting the use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reverse spiral asymmetric stop spring washer structure, comprising a spring washer body, a fracture and an upturned tip, a fracture being provided on one side of the spring washer body, the upturned tip being provided at one end of the spring washer body, a downturned tip being provided at the end of the spring washer body away from the upturned tip, the upturned tip and the downturned tip being in an upturned state and in opposite directions, and the ends of the upturned tip and the downturned tip being at an acute angle.

[0007] Furthermore, a reinforcing rib is provided in the middle of the inner circle of the spring washer body, and wear-resistant layers are provided on the upper and lower outer walls of the spring washer body, and anti-slip patterns are arranged on the outer surface of the wear-resistant layer.

[0008] Furthermore, limiting grooves are provided on both sides of the inner wall of the spring washer body, the inner wall of the limiting groove is connected to a telescopic rod, the end of the telescopic rod away from the limiting groove passes through the limiting groove and is connected to a clamping pad, a spring is wound around the outer wall of the telescopic rod, and the clamping pad is semicircular and matches the spring washer body.

[0009] Furthermore, a groove is arranged on the top of the spring washer body, an anti-slip top block is embedded in the inner wall of the groove, and a No. 2 spring is arranged between the groove and the anti-slip top block.

[0010] Furthermore, the spring washer body and the reinforcing rib are connected by welding, and the clamping pad and the anti-slip top block are made of elastic structural rubber material.

[0011] Furthermore, the spring washer body is made of a rigid material such as stainless steel, the spring washer body is bonded to the wear-resistant layer by glue, and the wear-resistant layer is in the form of a thin sheet.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a reverse spiral asymmetric stop spring washer structure, which adopts two side clamps to abut against the stud, and faces studs of different diameters, so that the two side clamps can always be in abutment with the stud by the compression and contraction of the spring, so that the spring washer body and the stud are always at the same center, and the spring washer body is prevented from being easily offset during the rotation of the nut. The specific contents are as follows:

[0013] Limiting grooves are arranged on both sides of the inner wall of the spring washer body, which play a limiting role. The inner wall of the groove is connected with a telescopic rod, which plays a connecting role and is composed of a group of telescopic cylinders, which can be extended and contracted. The end of the telescopic rod away from the limiting groove passes through the groove and is connected with a clamping pad. A spring is wound around the outer wall of the telescopic rod. The clamping pad is semicircular and matches the spring washer body. The clamping pads on both sides can abut against the studs. Facing studs of different diameters, the springs are compressed and contracted so that the clamping pads on both sides can always be in abutment with the studs, so that the spring washer body and the studs are always at the same center of the circle, thereby avoiding the spring washer body from being easily offset during the rotation of the nut, making it difficult to ensure that its center coincides with the center of the stud, and the reaction force on the nut is unbalanced, affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of a reverse spiral asymmetric retaining spring washer structure of the utility model;

[0015] Figure 2This is a front view structural diagram of a reverse spiral asymmetric retaining spring washer structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the anti-slip top block structure of a reverse spiral asymmetric stop spring washer structure of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of a clamping washer structure of a reverse spiral asymmetric retaining spring washer structure.

[0018] In the figure: 1. Spring washer body; 2. Fracture; 3. Upturned tip; 4. Downturned tip; 5. Reinforcing ribs; 6. Wear-resistant layer; 7. Anti-slip grooves; 8. Limiting grooves; 9. Telescopic rod; 10. Clamping pad; 11. Spring; 12. Groove; 13. Anti-slip top block; 14. No. 2 spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a reverse spiral asymmetric stop spring washer structure, comprising a spring washer body 1, a fracture 2 and an upturned tip 3. A fracture 2 is provided on one side of the spring washer body 1, and the spring washer body 1 can pass through a screw to perform reverse spiral fixation on a nut. The fracture 2 makes the spring washer body 1 as a whole asymmetrically installed. The upturned tip 3 is provided at one end of the spring washer body 1, and a downturned tip 4 is provided at the end of the spring washer body 1 away from the upturned tip 3. The upturned tip 3 and the downturned tip 4 are in a tilted state and in opposite directions. The ends of the upturned tip 3 and the downturned tip 4 form an acute angle, and the conical surfaces of the ends of the upturned tip 3 and the downturned tip 4 form a sharp cone, which can penetrate into the nut and the workpiece or the flat washer, so as to lock the nut. The nut will never loosen. Even if the spring washer is fatigued after being used for a period of time, the nut will not loosen because the end sharp cones of the upturned tip 3 and the downturned tip 4 penetrate into the nut and the workpiece or the flat washer.

[0021] A reinforcing rib 5 is provided in the middle of the inner ring of the spring washer body 1. The reinforcing rib 5 serves to strengthen the toughness of the spring washer body 1 to prevent the spring washer body 1 from fatigue and flattening prematurely, thereby improving the service life of the spring washer body 1. The upper and lower outer walls of the spring washer body 1 are provided with a wear-resistant layer 6. The wear-resistant layer 6 is made of wear-resistant materials such as polyethylene, polyurethane, and polytetrafluoroethylene to play a wear-resistant role. The outer surface of the wear-resistant layer 6 is arranged with anti-slip patterns 7. The anti-slip patterns 7 play an anti-slip role and increase the friction between the wear-resistant layer 6 and the nut, thereby playing a certain damping effect on the rotation of the nut.

[0022] Limiting grooves 8 are provided on both sides of the inner wall of the spring washer body 1, and the limiting grooves 8 play a limiting role. The inner wall of the limiting groove 8 is connected with a telescopic rod 9, and the telescopic rod 9 plays a connecting role and is composed of a group of telescopic cylinders, which can be extended and contracted. The end of the telescopic rod 9 away from the limiting groove 8 passes through the limiting groove 8 and is connected with a clamping pad 10. A spring 11 is wound around the outer wall of the telescopic rod 9. The clamping pad 10 is semicircular and matches the spring washer body 1. The clamping pads 10 on both sides can abut against the studs. Facing studs of different diameters, the spring 11 is compressed and contracted so that the clamping pads 10 on both sides can always be in abutment with the studs, so that the spring washer body 1 and the studs are always at the same center of the circle, avoiding the spring washer body 1 from being easily offset during the rotation of the nut, and it is difficult to ensure that its center coincides with the center of the stud, resulting in uneven reaction force on the nut, affecting the use effect.

[0023] A groove 12 is arranged on the top of the spring washer body 1. The groove 12 serves as a limit anti-slip top block 13. The inner wall of the groove 12 is embedded with the anti-slip top block 13. A No. 2 spring 14 is arranged between the groove 12 and the anti-slip top block 13. The No. 2 spring 14 contracts under pressure and always maintains a reverse rebound support force during the contraction process, so that the anti-slip top block 13 and the nut are in a close contact state. The anti-slip top block 13 is made of rubber material to increase the friction between it and the nut. During the loosening of the nut, the No. 2 spring 14 drives the anti-slip top block 13 to lift up so that the nut is always in contact with the anti-slip top block 13, thereby having a certain damping effect on the rotation of the nut and reducing the loosening of the nut.

[0024] The spring washer body 1 is connected to the reinforcing rib 5 by welding, the clamping pad 10 and the anti-slip top block 13 are made of elastic structural rubber material, the spring washer body 1 is made of rigid material such as stainless steel, the spring washer body 1 is bonded to the wear-resistant layer 6 by glue, and the wear-resistant layer 6 is in the form of a thin sheet.

[0025] Working principle: When using a reverse spiral asymmetric stop spring washer structure, the spring washer body 1 is sleeved on the outer surface of the required stud, and the nut is twisted to lock it. The upturned tip 3 and the downturned tip 4 are in a tilted state and the tilting directions are opposite. The ends of the upturned tip 3 and the downturned tip 4 are at an acute angle. The conical surfaces of the ends of the upturned tip 3 and the downturned tip 4 form a sharp cone, which can penetrate into the nut and the workpiece or the flat washer, so as to lock the nut. The nut will never loosen. Even if the spring washer is fatigued after using it for a period of time, the nut will not loosen because the end sharp cones of the upturned tip 3 and the downturned tip 4 penetrate into the nut and the workpiece or the flat washer. The wear-resistant layer 6 is polyethylene, polyurethane, Wear-resistant materials such as polytetrafluoroethylene play a wear-resistant role. The outer surface of the wear-resistant layer 6 is arranged with anti-skid patterns 7. The anti-skid patterns 7 play an anti-skid role and increase the friction between the wear-resistant layer 6 and the nut, thereby playing a certain damping effect on the rotation of the nut. The clamping pads 10 on both sides can abut against the studs. Facing studs of different diameters, the springs 11 are compressed and contracted so that the clamping pads 10 on both sides can always be in abutment with the studs, so that the spring washer body 1 and the studs are always at the same center of the circle, avoiding the spring washer body 1 from easily deviating during the rotation of the nut, making it difficult to ensure that its center coincides with the center of the stud, and the reaction force on the nut is unbalanced, affecting the use effect. The anti-skid top block 13 is made of rubber material to increase the friction between it and the nut. During the loosening of the nut, the No. 2 spring 14 drives the anti-skid top block 13 to lift up so that the nut is always in abutment with the anti-skid top block 13, thereby playing a certain damping effect on the rotation of the nut and reducing the loosening of the nut.

Claims

1. A reverse spiral asymmetric retaining spring washer structure, comprising a spring washer body (1), a fracture (2) and an upturned tip (3), characterized in that: A fracture (2) is provided on one side of the spring washer body (1); the upward tip (3) is provided at one end of the spring washer body (1); and a downward tip (4) is provided at one end of the spring washer body (1) away from the upward tip (3); the upward tip (3) and the downward tip (4) are in an upward state and in opposite directions; and the ends of the upward tip (3) and the downward tip (4) form an acute angle.

2. The reverse spiral asymmetric retaining spring washer structure according to claim 1, characterized in that: A reinforcing rib (5) is provided in the middle of the inner ring of the spring washer body (1), and wear-resistant layers (6) are provided on the upper and lower outer walls of the spring washer body (1), and anti-slip grooves (7) are arranged on the outer surface of the wear-resistant layer (6).

3. The reverse spiral asymmetric retaining spring washer structure according to claim 1, characterized in that: Limiting grooves (8) are provided on both sides of the inner wall of the spring washer body (1), the inner wall of the limiting groove (8) is connected to a telescopic rod (9), one end of the telescopic rod (9) away from the limiting groove (8) passes through a groove (12) and is connected to a clamping pad (10), a spring (11) is wound around the outer wall of the telescopic rod (9), and the clamping pad (10) is semicircular and matches the spring washer body (1).

4. The reverse spiral asymmetric retaining spring washer structure according to claim 3, characterized in that: A groove (12) is arranged at the top of the spring washer body (1), an anti-slip top block (13) is embedded in the inner wall of the groove (12), and a No. 2 spring (14) is arranged between the groove (12) and the anti-slip top block (13).

5. The reverse spiral asymmetric retaining spring washer structure according to claim 4, characterized in that: The spring washer body (1) and the reinforcing rib (5) are connected by welding, and the clamping pad (10) and the anti-slip top block (13) are made of elastic structural rubber material.

6. The reverse spiral asymmetric retaining spring washer structure according to claim 2, characterized in that: The spring washer body (1) is made of stainless steel, the spring washer body (1) and the wear-resistant layer (6) are bonded together by glue, and the wear-resistant layer (6) is in the form of a thin sheet.

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