Combined locking washer

Abstract

The utility model discloses a combined locking washer which comprises a bottom washer body, an adjusting washer body, a first self-locking washer body and a second self-locking washer body, three limiting clamping holes are formed in the upper end of the bottom washer body, first self-locking bevel teeth are arranged at the lower end of the bottom washer body, three limiting clamping blocks are fixedly arranged at the lower end of the adjusting washer body, and second self-locking bevel teeth are arranged at the upper end of the second self-locking washer body. A lug is fixedly arranged on the second self-locking gasket, first wedge-shaped teeth are arranged at the upper end of the first self-locking gasket, and second wedge-shaped teeth are arranged at the lower end of the second self-locking gasket. Compared with the prior art, the adjusting washers can be combined with the bottom washer in an inserted mode through the limiting clamping blocks, a plurality of adjusting washers can be combined together in an inserted mode through the limiting clamping blocks and the limiting clamping holes, different numbers of adjusting washers can be conveniently selected according to actual needs so as to adjust the overall height of the device, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of locking washers, and particularly relates to a combined locking washer. Background Art

[0002] A locking washer is a part that plays an important role in preventing loosening in mechanical connections. It can effectively enhance the stability of the connection between bolts and nuts, and prevent loosening caused by vibration, impact or long-term use. In many industrial fields, such as automobile manufacturing, mechanical equipment, and construction, locking washers play a key role. It can not only ensure the normal operation of equipment, reduce faults and maintenance costs, but also improve production efficiency and safety.

[0003] Common types of locking washers are diverse. For example, a spring washer relies on elastic tension, a toothed washer locks through the embedding of teeth, and a stop washer blocks through flanging or lugs, etc. to achieve the locking function. When installing existing locking washers, most of them cannot adjust the height of the locking washer, resulting in easy gaps or insufficient positions for installation during installation. Therefore, a combined locking washer with adjustable height is proposed. Summary of the Utility Model

[0004] The utility model provides a combined locking washer, aiming to solve the problems proposed in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A combined locking washer, comprising: a bottom washer, an adjusting washer, a self-locking washer one, and a self-locking washer two. A limiting card hole is provided at the upper end of the bottom washer, and a self-locking conical tooth one is provided at the lower end of the bottom washer. A limiting card block is fixedly provided at the lower end of the adjusting washer, and the limiting card block is inserted and matched with the limiting card hole. The upper end of the adjusting washer is also provided with the limiting card hole, and the lower end of the self-locking washer one is also provided with the limiting card block. A self-locking conical tooth two is provided at the upper end of the self-locking washer two, and a lug is fixedly provided on the self-locking washer two. A wedge-shaped tooth one is provided at the upper end of the self-locking washer one, and a wedge-shaped tooth two is provided at the lower end of the self-locking washer two. The wedge-shaped tooth two is arranged corresponding to the wedge-shaped tooth one.

[0006] Furthermore, three limiting card holes are provided at the upper ends of both the bottom washer and the adjusting washer, and three limiting card blocks are fixedly provided at the lower ends of the adjusting washer and the self-locking washer one.

[0007] Furthermore, the limiting card block is welded to the adjusting washer.

[0008] Furthermore, the wedge-shaped tooth one is integrally formed with the self-locking washer one, and the wedge-shaped tooth two is integrally formed with the self-locking washer two.

[0009] Furthermore, three lugs are fixedly provided on both the left and right sides of the self-locking washer two.

[0010] Furthermore, the lugs on the left and right sides of the second self-locking washer are symmetrically arranged.

[0011] Furthermore, a fillet is arranged on the side of the lug away from the second self-locking washer.

[0012] Furthermore, the lug is made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: Since the present utility model is provided with a bottom washer, an adjusting washer, a first self-locking washer, a second self-locking washer, a limit block and a limit hole, the first self-locking washer can be inserted and combined with the adjusting washer through the limit block, or can be inserted and combined with the bottom washer through the limit block; the adjusting washer can be inserted and combined with the bottom washer through the limit block, and multiple adjusting washers can also be inserted and combined with each other through the limit block and the limit hole, which is convenient to select different numbers of adjusting washers according to actual needs to adjust the overall height of the device and is convenient to use; by setting the bottom washer, the adjusting washer, the first self-locking washer, the second self-locking washer, the first self-locking cone tooth, the second self-locking cone tooth, the first wedge tooth and the second wedge tooth, when there is a tendency of the bolt to rotate reversely driven by vibration during use, the first wedge tooth and the second wedge tooth tend to separate, so that the first self-locking washer and the second self-locking washer tend to move away from each other, that is, the first self-locking cone tooth and the second self-locking cone tooth further press the contact surface to increase the resistance, and the effect of self-locking and loosening prevention can be achieved. After the bolt is tightened, the lug can be bent so that the lug fits against the side surface of the bolt, making the second self-locking washer unable to rotate relative to the bolt, achieving the effect of locking and loosening prevention, and the loosening prevention effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the first perspective schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is the second perspective schematic diagram of the overall structure of the present utility model;

[0016] Figure 3 is the first perspective schematic diagram of the split structure of the present utility model;

[0017] Figure 4 is the second perspective schematic diagram of the split structure of the present utility model.

[0018] In the figure: 1, bottom washer; 2, adjusting washer; 3, first self-locking washer; 4, second self-locking washer; 5, limit hole; 6, first self-locking cone tooth; 7, limit block; 8, second self-locking cone tooth; 9, lug; 10, first wedge tooth; 11, second wedge tooth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1-4 shown, a combined locking washer includes: a bottom washer 1, an adjusting washer 2, a self-locking washer one 3, and a self-locking washer two 4. Three limit card holes 5 are provided at the upper end of the bottom washer 1, and a self-locking cone tooth one 6 is provided at the lower end of the bottom washer 1. Three limit card blocks 7 are fixedly provided at the lower end of the adjusting washer 2, and the limit card blocks 7 are inserted and matched with the limit card holes 5. Three limit card holes 5 are also provided at the upper end of the adjusting washer 2, and three limit card blocks 7 are also provided at the lower end of the self-locking washer one 3. The self-locking washer one 3 can be combined with the adjusting washer 2 by inserting the limit card blocks 7, or can be combined with the bottom washer 1 by inserting the limit card blocks 7; the adjusting washer 2 can be combined with the bottom washer 1 by inserting the limit card blocks 7, and multiple adjusting washers 2 can also be combined with each other by inserting the limit card blocks 7 and the limit card holes 5, which is convenient to select different numbers of adjusting washers 2 according to actual needs to adjust the overall height of the device and is convenient to use.

[0021] A self-locking cone tooth two 8 is provided at the upper end of the self-locking washer two 4, a lug 9 is fixedly provided on the self-locking washer two 4, a wedge tooth one 10 is provided at the upper end of the self-locking washer one 3, and a wedge tooth two 11 is provided at the lower end of the self-locking washer two 4. The wedge tooth two 11 is correspondingly arranged with the wedge tooth one 10. The wedge tooth one 10 is integrally formed with the self-locking washer one 3, and the wedge tooth two 11 is integrally formed with the self-locking washer two 4. By providing the bottom washer 1, the adjusting washer 2, the self-locking washer one 3, the self-locking washer two 4, the self-locking cone tooth one 6, the self-locking cone tooth two 8, the wedge tooth one 10, and the wedge tooth two 11, when in use, an appropriate number of adjusting washers 2 are inserted and combined at the upper end of the bottom washer 1, then the wedge tooth one 10 and the wedge tooth two 11 are fitted together, and the assembled device as a whole is sleeved on the bolt for installation. The self-locking cone tooth one 6 and the self-locking cone tooth two 8 can be squeezed and engaged with the connecting piece, which can increase the friction at the contact part and achieve the effect of locking and loosening prevention. When the bolt is tightened in one direction, it will drive the wedge tooth two 11 to be correspondingly fitted with the wedge tooth one 10. When there is a tendency for the bolt to rotate in the reverse direction due to vibration during use, the wedge tooth one 10 and the wedge tooth two 11 tend to separate, causing the self-locking washer one 3 and the self-locking washer two 4 to tend to move away from each other, so that the self-locking cone tooth one 6 and the self-locking cone tooth two 8 further squeeze the contact surface to increase the resistance, and the effect of self-locking and loosening prevention can be achieved.

[0022] On both the left and right sides of the self-locking washer II (4), three lugs (9) are fixedly arranged. The lugs (9) on the left and right sides of the self-locking washer II (4) are symmetrically arranged. A fillet is arranged on the side of the lug (9) away from the self-locking washer II (4). The lug (9) is made of stainless steel. By arranging six lugs (9), after the bolt is tightened, the lugs (9) can be bent so that the lugs (9) are in contact with the side surface of the bolt, making the self-locking washer II (4) unable to rotate relative to the bolt, achieving the effect of locking and loosening prevention, and the loosening prevention effect is better.

[0023] The working principle of the present utility model is as follows: During use, an appropriate number of adjusting washers (2) are inserted and combined on the upper end of the bottom washer (1), which is convenient to select different numbers of adjusting washers (2) according to actual needs to adjust the overall height of the device, facilitating use. Then, the first wedge teeth (10) and the second wedge teeth (11) are fitted together, and the assembled device as a whole is sleeved on the bolt for installation. The first self-locking cone teeth (6) and the second self-locking cone teeth (8) can be squeezed and engaged with the connecting piece, which can increase the friction at the contact part and achieve the effect of locking and loosening prevention. When the bolt is tightened in one direction, it will drive the second wedge teeth (11) to be correspondingly fitted with the first wedge teeth (10). When there is a tendency for the bolt to rotate in the reverse direction due to vibration during use, the first wedge teeth (10) and the second wedge teeth (11) tend to separate, causing the first self-locking washer (3) and the second self-locking washer (4) to tend to move away from each other. Even if the first self-locking cone teeth (6) and the second self-locking cone teeth (8) further squeeze the contact surface to increase the resistance, the effect of self-locking and loosening prevention can be achieved. After the bolt is tightened, the lugs (9) can be bent so that the lugs (9) are in contact with the side surface of the bolt, making the self-locking washer II (4) unable to rotate relative to the bolt, achieving the effect of locking and loosening prevention, and the loosening prevention effect is better. This is the working principle of the device.

[0024] The embodiments of the present utility model are given for the purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A combined locking washer, characterized in that: The invention comprises a bottom washer (1), an adjusting washer (2), a self-locking washer 1 (3) and a self-locking washer 2 (4); the top end of the bottom washer (1) is provided with a limit clamping hole (5); the bottom end of the bottom washer (1) is provided with a self-locking bevel tooth 1 (6); the bottom end of the adjusting washer (2) is fixedly provided with a limit clamping block (7); the limit clamping block (7) is plug-fitted with the limit clamping hole (5); the top end of the adjusting washer (2) is also provided with the limit clamping hole (5), the limiting block (7) is also provided at the lower end of the self-locking washer 1 (3), the self-locking bevel tooth 2 (8) is provided at the upper end of the self-locking washer 2 (4), the self-locking washer 2 (4) is fixedly provided with a lug (9), the self-locking washer 1 (3) is provided with a wedge-shaped tooth 1 (10) at the upper end, the self-locking washer 2 (4) is provided with a wedge-shaped tooth 2 (11), and the wedge-shaped tooth 2 (11) is provided corresponding to the wedge-shaped tooth 1 (10).

2. A combined locking washer according to claim 1, characterized in that: The upper ends of the bottom washer (1) and the adjusting washer (2) are both provided with three limit clamping holes (5), and the lower ends of the adjusting washer (2) and the self-locking washer (3) are fixedly provided with three limit clamping blocks (7).

3. A combined locking washer according to claim 2, characterized in that: The limiting block (7) on the adjusting washer (2) is fixed to the adjusting washer (2) by welding.

4. A combined locking washer according to claim 3, characterized in that: The wedge-shaped tooth one (10) is integrally formed with the self-locking washer one (3), and the wedge-shaped tooth two (11) is integrally formed with the self-locking washer two (4).

5. A combined locking washer according to claim 4, characterized in that: Three lugs (9) are fixedly arranged on both left and right sides of the second self-locking washer (4).

6. A combined locking washer according to claim 5, characterized in that: The lugs (9) on the left and right sides of the second self-locking washer (4) are symmetrically arranged.

7. A combined locking washer according to claim 6, characterized in that: The side of the lug (9) away from the second self-locking washer (4) is provided with a rounded corner.

8. A combined locking washer according to claim 7, characterized in that: The lug (9) is made of stainless steel.

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