Locking gasket for relay base
By designing locking washers with threaded holes and fixed foot structures, the problem of poor performance of relay base locking washers was solved, achieving stable bolt connection and improving the reliability and service life of the relay.
Patent Information
- Application Number
- CN202422875629.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The locking washers in the existing relay base have poor performance, resulting in insufficient screw torque, easy self-rotation and slippage, leading to component misalignment and damage, affecting the stability and reliability of the relay.
Design a locking washer that includes threaded holes and symmetrical fixing feet. The fixing feet are made of flexible material with a gradually changing width and rounded corners. The round groove is used to accommodate the bolt head, which enhances the stability and reliability of the connection.
It increases the torque of the bolts, reduces the impact force between components, prevents misalignment, enhances the stability and reliability of the relay, facilitates disassembly without damaging the slot structure, and has a certain heat dissipation effect.
Smart Images

Figure CN223513874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a locking washer for a relay base, and more specifically, it relates to a locking washer used inside a relay base for securely and reliably connecting internal parts of the relay base by screw locking. Background Technology
[0002] A relay is an electronic device used in automatic control circuits. The function of a relay is determined by its special internal structure. When a relay performs automatic control, the internal control components will repeatedly collide and bump against each other. Locking shims are buffer parts placed between the control components, which play an important role in improving the stability of the overall components.
[0003] Currently, relay bases on the market generally do not have specially designed washers or use washers with poor performance. With the development of related equipment, the requirements for the screw torque of relay bases are getting higher and higher. Traditional washer structures may cause the nut to rotate due to insufficient screw torque, and the washer may not be firmly fixed to the base. During installation, the screw is prone to slippage. Over time, the parts connected by the locking washer are prone to misalignment and damage. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a locking washer for use inside the relay base, which can reliably connect the internal parts of the relay base by screw locking.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a locking washer for a relay base, comprising a washer body, wherein the washer body is provided with a threaded hole extending from top to bottom through the washer body, and the washer body further comprises fixing feet symmetrically arranged on both sides thereof, wherein the width of the fixing feet is smaller than the width of the washer body.
[0006] By adopting the above technical solution, the threaded hole can be used for bolt connection between the locking washer and the plate. The bolt used in this technical solution has a larger torque than that of a hexagonal nut, making it less prone to self-rotation and slippage. The bolt on the locking washer limits the movement space of the plate between the locking washer and the bolt, which can reduce the impact force between the components when the relay base is operating and prevent misalignment. The fixing foot can fix the locking washer on the movable rod, making the surrounding parts of the locking washer orderly and stable, thereby realizing the stable and reliable operation of the relay.
[0007] The present invention is further configured such that: the width of the fixing foot at different heights is set as follows: the ratio L1 of the upper part of the fixing foot to the width of the pad body is between 1 / 2 and 3 / 4; the width L2 of the middle part of the fixing foot gradually decreases from top to bottom until it is the same as the width L1 of the upper part, wherein L2≥L1, and the ratio of the maximum value of L2 to L1 is 31 / 30; the width L3 of the lower part of the fixing foot gradually decreases from top to bottom, wherein L3≤L1, and the ratio of the minimum value of L3 to L1 is 13 / 15.
[0008] By adopting the above technical solution, the fixing foot can play a role in stable connection with the bottom part. The lower part of the fixing foot is narrower, which makes it easier for it to enter the corresponding slot of the part. The width of the middle part is greater than that of the slot, which enhances the stability of the connection. The width of the upper part of the fixing foot is equal to that of the slot, which facilitates the entry of the last part, so that the fixing foot can be locked in the slot, further improving the overall stability.
[0009] The present invention is further configured such that the fixing foot is made of a flexible material.
[0010] By adopting the above technical solution, the fixing foot is made of flexible material, which makes it easier to disassemble and less likely to damage the internal structure of the slot.
[0011] The present invention is further configured such that: the top of the locking washer for the relay base is provided with a circular groove for accommodating the bolt head, and the radius of the circular groove is larger than the radius of the threaded hole.
[0012] By adopting the above technical solution, the circular groove can facilitate the entry of bolts, and when using threads for connection, the circular groove can also guide the nut.
[0013] The present invention is further configured such that the upper part of the fixed foot away from the pad body is rounded.
[0014] By adopting the above technical solution, the rounded corner treatment of the fixing foot makes it less likely to injure hands when assembling the locking washer, and the rounded corner treatment also makes the installation more time-saving and labor-saving. Attached Figure Description
[0015] Figure 1 This is a perspective view of an embodiment of the locking washer for the relay base of this utility model;
[0016] Figure 2 This is a diagram showing the usage state of this utility model;
[0017] Figure 3 This is the right view of the present invention;
[0018] The attached diagram is labeled as follows: 1. Gasket body; 2. Threaded hole; 3. Fixing foot; 4. Circular groove; Detailed Implementation
[0019] Reference Figures 1 to 3 The embodiment of the locking washer for the relay base of this utility model is further described below.
[0020] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0021] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0022] A locking washer for a relay base includes a washer body 1, wherein the washer body 1 has a threaded hole 2 extending downwards through the washer body 1, and the washer body 1 also includes fixing feet 3 symmetrically arranged on both sides thereof, the width of the fixing feet 3 being smaller than the width of the washer body 1. By adopting the above technical solution, the threaded hole 2 can be used for bolted connection between the locking washer and the plate, and the bolt used in this technical solution has a higher torque than a hexagonal nut, making it less prone to self-rotation and slippage. The bolt on the locking washer limits the movement space of the plate between the locking washer and the bolt, which can reduce the impact force between components during relay base operation and prevent misalignment. The fixing feet 3 can fix the locking washer to the movable rod, making the surrounding parts of the locking washer orderly and stable, thereby achieving stable and reliable operation of the relay.
[0023] Furthermore, the width of the fixing foot 3 is set at different heights as follows: the ratio L1 of the upper part of the fixing foot 3 to the width of the pad body 1 is between 1 / 2 and 3 / 4; the width L2 of the middle part of the fixing foot 3 gradually decreases from top to bottom until it is the same as the width L1 of the upper part, where L2≥L1, and the ratio of the maximum value of L2 to L1 is 31 / 30; the width L3 of the lower part of the fixing foot 3 gradually decreases from top to bottom, where L3≤L1, and the ratio of the minimum value of L3 to L1 is 13 / 15. By adopting the above technical solution, the fixing foot 3 has an approximately chamfered structure, which can play a role in stable connection with the bottom part. The lower section of the fixing foot 3 is narrower, which makes it easier for it to enter the corresponding part's slot. The width of the center part is greater than that of the slot, which enhances the stability of the connection. The upper section of the fixing foot 3 is equal to the width of the slot, which facilitates the entry of the last section, so that the fixing foot 3 can be locked in the slot, further improving the overall stability. The width of the gasket body 1 is greater than or equal to 1.2mm, otherwise the fixing foot and the gasket cannot be folded into a 90-degree structure.
[0024] Furthermore, the fixing foot 3 is made of a flexible material. By adopting the above technical solution, the fixing foot 3, made of a flexible material, is easier to disassemble and less likely to damage the internal structure of the connecting slot.
[0025] Furthermore, the top of the locking washer for the relay base is provided with a circular groove 4 for accommodating the bolt head, the radius of which is larger than the radius of the threaded hole 2. By adopting the above technical solution, the circular groove facilitates bolt insertion. When using threaded connections, the circular groove 4 also guides the nut. When the downward extension depth of the circular groove 4 is less than 2mm, the thread engagement length is too low, resulting in poor connection strength. When the downward extension depth of the circular groove 4 is greater than 3mm, the space within the mounting assembly becomes smaller, hindering heat dissipation during equipment operation. Therefore, the downward extension depth of the circular groove 4 is greater than or equal to 2mm and less than or equal to 3mm, ensuring the washer is more firmly fixed in its position within the relay base, preventing loosening due to vibration or other factors during equipment operation. It also provides a certain degree of heat dissipation, improving the reliability and service life of the relay base.
[0026] Furthermore, the upper part of the fixing foot 3, away from the gasket body 1, is rounded. By adopting the above technical solution, the rounded corners of the fixing foot 3 make it less likely to injure hands when assembling the locking gasket, and the rounded corners also make installation more time-saving and labor-saving.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A locking washer for a relay base, comprising a washer body (1), characterized in that, The relay base locking washer is provided with a threaded hole (2) that runs from top to bottom through the washer body (1). The relay base locking washer also includes fixing feet (3) symmetrically arranged on both sides. The width of the fixing feet (3) is smaller than the width of the washer body (1).
2. A locking washer for a relay base according to claim 1, characterized in that, The width of the fixing foot (3) is set at different heights as follows: the ratio of the width L1 of the upper part of the fixing foot (3) to the width L of the pad body (1) is between 1 / 2 and 3 / 4; the width L2 of the middle part of the fixing foot (3) gradually decreases from top to bottom until it is the same as the width L1 of the upper part, where L2≥L1, and the ratio of the maximum value of L2 to L1 is 31 / 30; the width L3 of the lower part of the fixing foot (3) gradually decreases from top to bottom, where L3≤L1, and the ratio of the minimum value of L3 to L1 is 13 / 15.
3. A locking washer for a relay base according to claim 1, characterized in that, The fixing foot (3) is made of flexible material.
4. A locking washer for a relay base according to claim 1, characterized in that, The relay base has a locking washer with a circular groove (4) at the top for accommodating the bolt head, and the radius of the circular groove (4) is larger than the radius of the threaded hole (2).
5. A locking washer for a relay base according to claim 1, characterized in that, The upper part of the fixed foot (3) away from the pad body (1) is rounded.