Composite contact convenient to maintain
By employing a press-to-insert and pull-out mechanism, along with a locking structure consisting of deformable rubber parts, interlocking ribs, and interlocking grooves, the problems of loose composite contacts and inconvenient maintenance are solved, enabling convenient contact loading and unloading and stable installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-15
AI Technical Summary
The existing composite contact's riveting structure is not secure, leading to loosening during use, resulting in poor contact and inconvenient maintenance. The threaded structure is complex to install, affecting maintenance efficiency.
The contacts are installed and removed by pressing and pulling, and the stable installation of the contacts is ensured by a double locking structure of deformable rubber parts and interlocking ribs and interlocking grooves.
It enables easy installation and removal of contacts and stable installation, improves maintenance efficiency, and ensures the stability and convenient operation of contacts.
Smart Images

Figure CN224248479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite contacts, specifically to a composite contact that is easy to maintain. Background Technology
[0002] Contact elements are widely used in electrical products such as switches, relays, and thermostats. Most existing composite contacts are riveted to perforated contact pieces using a riveting machine. However, the riveted structure is often not very secure and may loosen after a period of use, leading to poor contact.
[0003] Replacing riveting with threaded structures to ensure contact stability is one current solution. However, threaded structures require screwing in during installation, and the screws themselves are relatively small, making the actual installation and removal process inconvenient and affecting the efficiency of subsequent maintenance. Therefore, it is essential to design a composite contact that is easy to maintain while ensuring installation stability. Utility Model Content
[0004] To overcome the shortcomings of the prior art, this utility model provides a composite contact that is easy to maintain. The contact can be installed and removed by simply pressing and inserting it, which is simple to operate and makes subsequent maintenance operations more convenient and efficient. At the same time, it is equipped with a deformable rubber part and a double locking mechanism of interlocking ribs and interlocking grooves to ensure the stability of the contact installation.
[0005] Technical solution
[0006] A composite contact that is easy to maintain includes a base with a through mounting hole, a contact portion inserted into the mounting hole, a contact tip on the contact portion, and a gripping portion that can be locked onto the outside of the base.
[0007] Furthermore, the upper side of the mounting hole is also connected to a contact groove located in the upper surface of the substrate, and an extended contact portion fixed to the contact portion for increasing the conductive contact area is fitted inside the contact groove.
[0008] Furthermore, the lower side of the mounting hole is connected to a slot located in the lower surface of the substrate, and a deformable rubber part fixed to the lower end of the contact part is provided in the slot.
[0009] Furthermore, the outer side of the gripper is provided with a raised rib for increasing friction and gripping force.
[0010] Furthermore, fitting grooves are provided on the left and right sides of the substrate.
[0011] Furthermore, the inner side of the gripper is provided with a fitting rib that can be embedded into the fitting groove.
[0012] Beneficial effects
[0013] Compared with the prior art, this utility model has the following advantages: the contact can be installed and removed by simply pressing and inserting, which is simple to operate and makes subsequent maintenance operations more convenient and efficient; at the same time, it is equipped with a deformable rubber part and a double locking mechanism of interlocking ribs and interlocking grooves to ensure the stable installation of the contact. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a composite contact that is easy to maintain according to the present invention;
[0015] Figure 2 for Figure 1 Schematic diagram of the structure in the AA direction;
[0016] Figure 3 This is a schematic diagram of the fitting groove.
[0017] Attached icon number
[0018] 1. Base body, 2. Mounting hole, 3. Extended contact, 4. Contact point, 5. Grip, 6. Raised rib, 7. Fitting rib, 8. Deformable rubber part, 9. Slot, 10. Contact groove, 11. Fitting groove, 12. Detailed Implementation
[0019] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:
[0020] have Figures 1-3 As shown, this utility model discloses a composite contact that is easy to maintain, including a base 1, a mounting hole 2 penetrating the base 1, a contact part 4 inserted inside the mounting hole 2, a contact 5 provided on the contact part 4, and a gripping part 6 that can be locked onto the outside of the base 1 is also fixedly connected to the contact part 4.
[0021] Furthermore, the upper side of the mounting hole 2 is also connected to a contact groove 11 located in the upper surface of the substrate 1, and an extension contact 3 fixed to the contact part 4 for increasing the conductive contact area is fitted inside the contact groove 11.
[0022] Furthermore, the lower side of the mounting hole 2 is connected to a slot 10 located in the lower surface of the base 1, and a deformable rubber part 9 fixed to the lower end of the contact part 4 is provided in the slot 10.
[0023] Furthermore, the outer side of the gripping part 6 is provided with a raised rib 7 for increasing friction and gripping force.
[0024] Furthermore, fitting grooves 12 are provided on the left and right sides of the substrate 1.
[0025] Furthermore, the inner side of the gripping part 6 is provided with a fitting rib 8 that can be embedded into the fitting groove 12.
[0026] Specifically, during use, the deformable rubber part 9 is directly squeezed and inserted into the mounting hole 2, so that the contact part 4 passes through the mounting hole 2, and the extended contact part 3 enters the contact groove 11.
[0027] At this time, the deformable rubber part 9 will pass through the mounting hole 2 and enter the slot part 10. The deformable rubber part 9 will no longer be squeezed by the inner wall of the mounting hole 2 and will expand and recover, making the contact part 4 more stable in the mounting hole 2 and preventing the contact part 4 from moving out.
[0028] At the same time, the interlocking rib 8 is inserted into the interlocking groove 12 to lock the grabbing part 6, thereby further ensuring the stable installation of the contact 5;
[0029] When disassembly is required, simply grab the protruding rib 7 and pull out the grab part 6 and the contact part 4 to complete the disassembly, which is more convenient.
[0030] 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 composite contact that is easy to maintain, characterized in that: Includes a base (1), on which a mounting hole (2) is passed through, and a contact part (4) is inserted inside the mounting hole (2). A contact (5) is provided on the contact part (4), and a grab part (6) that can be snapped onto the outside of the base (1) is also fixedly connected to the contact part (4).
2. The easy-to-maintain composite contact according to claim 1, characterized in that: The upper side of the mounting hole (2) is also connected to a contact groove (11) located in the upper surface of the substrate (1), and an extension contact (3) fixed to the contact part (4) for increasing the conductive contact area is fitted inside the contact groove (11).
3. The easy-to-maintain composite contact according to claim 2, characterized in that: The mounting hole (2) is connected to a slot (10) located in the lower surface of the substrate (1), and a deformable rubber part (9) fixed to the lower end of the contact part (4) is provided in the slot (10).
4. The easy-to-maintain composite contact according to claim 3, characterized in that: The outer side of the gripping part (6) is provided with a raised rib (7) for increasing friction and gripping force.
5. A maintenance-friendly composite contact according to claim 4, characterized in that: The left and right sides of the substrate (1) are provided with fitting grooves (12).
6. A composite contact that is easy to maintain according to claim 5, characterized in that: The inner side of the gripper (6) is provided with a fitting rib (8) that can be embedded in the fitting groove (12).