Durable composite contact

Abstract

The utility model discloses a durable composite contact, which comprises a base body, a first rectangular space is arranged in the lower surface of the base body, a second rectangular space is arranged in the top wall of the first rectangular space, a rectangular moving block can be just clamped in the second rectangular space, a contact is fixedly arranged at the upper part of the rectangular block, and the lower part of the base body is provided with a second rectangular space. A contact layer which penetrates through the top wall of the second rectangular space, extends out and is slidably connected to the base body is arranged at the upper end of the contact, a fixing plate is arranged on the top wall of the first rectangular space, a bolt penetrates through and is rotatably connected to the fixing plate, and the fixing plate is in direct threaded connection with a moving block through the bolt; the up-down movement of the moving block can be limited, so that the contact layer is prevented from shaking due to vibration; and meanwhile, rotation of the bolt is limited through the clamping block, so that the condition that the contact layer deviates due to wrong rotation of the bolt is avoided, and the stability of the contact layer is ensured.

Description

Technical Field

[0001] This utility model relates to the field of composite contacts, specifically to a durable composite contact. Background Technology

[0002] Contact elements are widely used in electrical products such as switches, relays, and thermostats. Most existing composite contacts are riveted onto perforated contact pieces using a riveting machine. The composite layer is relatively small. When electronic appliances are opened and closed, the metal conductor terminals are prone to instantaneous heat generation and sparks at the moment of contact. This causes oxidation and electrolysis at the contact points during high-frequency use, resulting in localized thinning and a shorter service life.

[0003] Chinese utility model patent application number 202222918681.2 proposes a composite contact, but the applicant found certain shortcomings during actual use:

[0004] 1. The lower substrate is only restricted to moving downwards, while its upward movement relies solely on the tension of the spring. During vibration, the lower substrate may move upwards, further causing the contact layer to move upwards, thus leading to accidental contact.

[0005] Second, the screw does not have a structure to limit rotation. During use, installation and maintenance, the screw may be accidentally rotated, which may cause displacement of the contact layer. This defect is difficult to detect in time and thus affects the normal use of the contact.

[0006] Accordingly, this utility model proposes a durable composite contact to solve the above problems. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this utility model provides a durable composite contact. By directly threading the bolt to the moving block, the vertical movement of the moving block can be restricted, thereby ensuring that the contact layer will not shake due to vibration. At the same time, the bolt rotation is restricted by the locking block, thereby ensuring that the bolt will not rotate accidentally and cause the contact layer to shift, thus ensuring the stability of the contact layer.

[0008] Technical solution

[0009] A durable composite contact includes a substrate. A first rectangular space is provided in the lower surface of the substrate. A second rectangular space is provided in the top wall of the first rectangular space. The interior of the second rectangular space can accommodate a rectangular movable block. A contact is fixedly provided on the upper part of the movable block. The upper end of the contact is provided with a contact layer that penetrates through the top wall of the second rectangular space and extends out and is slidably connected to the substrate. A fixing plate is provided at the top wall of the first rectangular space. A bolt is rotatably connected through the fixing plate. A threaded hole is provided in the lower surface of the movable block. The bolt extends into and is threadedly connected to the threaded hole.

[0010] Furthermore, the bolt can only rotate relative to the fixing plate and cannot move up or down.

[0011] Furthermore, a rectangular fixing cover is precisely fitted into the inner wall of the first rectangular space, and a regular polygonal locking block is fixed on the upper side of the fixing cover.

[0012] Furthermore, the lower surface of the head of the bolt is provided with a regular polygonal locking hole that can be engaged by the locking block.

[0013] Furthermore, a gripping part is fixed to the outside of the fixed cover.

[0014] Furthermore, a slot is provided on the inner wall of the first rectangular space, and a protruding edge that can be inserted into the slot is provided on the outer surface of the fixing cover.

[0015] Furthermore, the second rectangular space restricts the rotation of the moving block, and the first rectangular space restricts the rotation of the fixed cover.

[0016] Furthermore, the fixing plate is fixed to the base by screws.

[0017] Beneficial effects

[0018] Compared with the prior art, this utility model has the following advantages: by directly threading the bolt and the moving block, the up and down movement of the moving block can be restricted, thereby ensuring that the contact layer will not shake due to vibration; at the same time, by restricting the rotation of the bolt by the locking block, it is ensured that the bolt will not rotate accidentally and cause the contact layer to shift, thus ensuring the stability of the contact layer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a durable composite contact according to the present invention.

[0020] Attached icon number

[0021] 1. Substrate; 2. Second rectangular space; 3. Contact layer; 4. Contact point; 5. Moving block; 6. Bolt; 7. Fixing plate; 8. Screw; 9. Fixing cover; 10. Gripping part; 11. Clamping block; 12. First rectangular space; 13. Protruding edge; 14. Clamping hole; 15. Threaded hole. Detailed Implementation

[0022] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0023] have Figure 1 As shown, this utility model discloses a durable composite contact, including a base 1. A first rectangular space 12 is provided in the lower surface of the base 1. A second rectangular space 2 is provided in the top wall of the first rectangular space 12. A rectangular movable block 5 can be inserted into the interior of the second rectangular space 2. A contact 4 is fixedly provided on the upper part of the movable block 5. A contact layer 3 is provided at the upper end of the contact 4, which extends through the top wall of the second rectangular space 2 and is slidably connected to the base 1. A fixing plate 7 is provided at the top wall of the first rectangular space 12. A bolt 6 is rotatably connected through the fixing plate 7. A threaded hole 15 is provided in the lower surface of the movable block 5. The bolt 6 extends into and is threadedly connected to the threaded hole 15.

[0024] Furthermore, the bolt 6 can only rotate relative to the fixing plate 7, and cannot move up or down.

[0025] Furthermore, a rectangular fixing cover 9 is precisely fitted into the inner wall of the first rectangular space 12, and a regular polygonal locking block 11 is fixed on the upper side of the fixing cover 9.

[0026] Furthermore, the lower surface of the head of the bolt 6 is provided with a regular polygonal locking hole 14 that can be engaged by the locking block 11.

[0027] Furthermore, a gripping part 10 is fixedly provided on the outside of the fixed cover 9.

[0028] Furthermore, a slot (not shown) is provided on the inner wall of the first rectangular space 12, and a protruding edge 13 that can be inserted into the slot is provided on the outer surface of the fixing cover 9.

[0029] Furthermore, the second rectangular space 2 restricts the rotation of the moving block 5, and the first rectangular space 12 restricts the rotation of the fixed cover 9.

[0030] Furthermore, the fixing plate 7 is fixed to the base 1 by screws 8.

[0031] Specifically, when the top of the contact layer 3 gradually thins during use, the gripping part 10 pulls out the fixing cover 9, the bolt 6 is rotated, and the moving block 5 is moved upward, so that the contact layer 3 extends out, thereby making up for the part of the contact layer 3 that is consumed, so that the contact layer 3 can still sensitively complete the contact and energization operation.

[0032] Then, the fixing cover 9 is placed in, and the locking block 11 is engaged in the locking hole 14, thereby restricting the rotation of the bolt 6 and ensuring the stability of the contact point 4.

[0033] The raised edge 13 is inserted into the slot to ensure the stable installation of the fixing cover 9.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A long lasting composite contact, characterized by: The utility model relates to a kind of contactor, including base (1), the lower surface of the base (1) is provided with first rectangular space (12), the top wall of the first rectangular space (12) is provided with second rectangular space (2), the inside of the second rectangular space (2) can just be clamped into rectangular moving block (5), the upper portion of the moving block (5) is fixed with contact (4), the upper end of the contact (4) is provided with contact layer (3) that passes through the top wall of the second rectangular space (2) and extends and is slidably connected to the base (1), the top wall of the first rectangular space (12) is provided with fixed plate (7), the fixed plate (7) is provided with bolt (6) that passes through and is rotatably connected, the lower surface of the moving block (5) is provided with threaded hole (15), the bolt (6) extends into and is threadedly connected to the threaded hole (15).

2. The long lasting composite contact according to claim 1, wherein: The bolt (6) can only rotate relative to the fixed plate (7), and cannot move up and down.

3. A long lasting composite contact as claimed in claim 2 wherein: The inner wall of the first rectangular space (12) is also clamped into a rectangular fixed cover (9), and the upper side of the fixed cover (9) is fixed with a regular polygon clamping block (11).

4. The long lasting composite contact according to claim 3, wherein: The lower surface of the head of the bolt (6) is provided with a regular polygon clamping hole (14) that can be clamped into the clamping block (11).

5. A long lasting composite contact as claimed in claim 4 wherein: The outer portion of the fixed cover (9) is fixed with a gripping portion (10).

6. A long lasting composite contact as claimed in claim 5 wherein: The inner wall of the first rectangular space (12) is provided with a clamping groove, and the outer side surface of the fixed cover (9) is provided with a raised edge (13) that can be clamped into the clamping groove.

7. A long lasting composite contact as claimed in claim 6 wherein: The second rectangular space (2) limits the rotation of the moving block (5), and the first rectangular space (12) limits the rotation of the fixed cover (9).

8. The long lasting composite contact according to claim 7, wherein: The fixed plate (7) is fixed to the base (1) by a screw (8).

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