A spring and spring seat riveting structure

Abstract

This utility model relates to the technical field of circuit switches, specifically to a spring and spring seat riveting structure. It includes a spring seat, a spring, and a rivet. The spring seat has a rivet hole, and one end of the rivet has a cylinder that matches the rivet hole. A circular retaining plate is provided on the cylinder. The inner diameter of one end of the spring matches the diameter of the cylinder, and the diameter of the retaining plate is larger than the cylinder. One end of the spring is fixedly installed in a groove formed by the cylinder and the retaining plate. The advantages of this utility model are that the spring will not detach from the spring seat on its own, improving safety. It is also suitable for mass production using automated equipment, eliminating the need for manual installation of the spring onto the spring seat, thus saving labor.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit switches, specifically to a spring and spring seat riveting structure. Background Technology

[0002] In the field of circuit lighting, wall switches, wall sockets, and auxiliary light switches all require the use of springs and spring seats. The spring seat not only serves to fix one end of the spring in place, but also to conduct electricity to connect / disconnect the circuit.

[0003] Currently, the spring mounting method on the market involves forming a cylinder around the spring seat, with one end of the spring directly fitted onto the cylinder. After prolonged switching, one end of the spring is prone to detaching from the cylinder, especially in auxiliary switches. Because auxiliary switches contain multiple circuit switches and numerous internal springs, if even one spring detaches, the entire product will malfunction. Furthermore, the numerous internal springs and frequent switching of auxiliary switches result in a short lifespan. Users often disassemble the auxiliary switch and attempt to reinstall the springs themselves, but this unauthorized repair by non-professionals can easily lead to safety issues. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a spring and spring seat riveting structure.

[0005] The technical solution of this utility model is as follows: it includes a spring seat, a spring, and a rivet. The spring seat is provided with a rivet hole. One end of the rivet is provided with a cylinder. The cylinder matches the rivet hole. The cylinder is provided with a circular retaining plate. The inner diameter of one end of the spring matches the diameter of the cylinder. The diameter of the retaining plate is larger than that of the cylinder. One end of the spring is fixedly installed in the groove formed by the cylinder and the retaining plate.

[0006] Preferably, the diameter of the card platform is slightly larger than the outer diameter of the spring.

[0007] Preferably, the mounting plate is formed by riveting a cylinder to cause it to undergo plastic deformation. During riveting, the cylinder and one end of the spring are also plastically deformed, causing the cylinder to deform outward to fill the space at one end of the spring, thereby firmly fixing one end of the spring onto the cylinder.

[0008] Preferably, the clamping platform is formed by fitting one end of a spring onto the outer diameter of a cylinder and then riveting the top of the cylinder with a machine to cause plastic deformation of the cylinder.

[0009] Preferably, the fit between the cylinder and the rivet hole is an interference fit.

[0010] Preferably, the rivet has a contact point on the end away from the card table, and the surface of the contact point is silver-plated.

[0011] Preferably, the rivet is made entirely of copper.

[0012] Preferably, the spring's mean diameter gradually decreases from the end closest to the cylinder, and the spring's pitch also gradually decreases from the end closest to the cylinder.

[0013] Preferably, the spring seat is made of sheet metal stamping, and there are two rivet holes symmetrically distributed on both sides of the spring seat. The number of springs and rivets are both two.

[0014] The beneficial effect of this utility model is that the spring will not detach from the spring seat on its own, which improves safety. At the same time, it is suitable for mass production by automated equipment, eliminating the need for manual installation of the spring on the spring seat and saving labor. Attached Figure Description

[0015] Figures 1-3 This is a schematic diagram of the structure of this utility model.

[0016] Figures 4-5 This is an exploded view of the present invention.

[0017] Figure 6 This is an exploded view of the rivet of this utility model when it is not riveted and pressed against the mounting plate.

[0018] Figure 7 This is a schematic diagram of the structure of the rivet-unriveted clamping platform of this utility model.

[0019] Figures 1-7 In the middle, 1. Spring seat, 11. Spring hole, 2. Spring, 3. Rivet, 31. Cylinder, 32. Locking platform, 33. Contact point. Detailed Implementation

[0020] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-7 As shown, this embodiment provides a spring and spring seat riveting structure, including a spring seat 1, a spring 2 and a rivet 3. The spring seat 1 is provided with a rivet hole 11. One end of the rivet 3 is provided with a cylinder 31, which matches the rivet hole 11. The cylinder 31 is provided with a circular retaining plate 32. The inner diameter of one end of the spring 2 matches the diameter of the cylinder 31. The diameter of the retaining plate 32 is larger than that of the cylinder 31. One end of the spring 2 is fixedly installed in the groove formed by the cylinder 31 and the retaining plate 32.

[0022] To facilitate riveting and ensure a more secure fixation of the spring 2, preferably, the diameter of the locking platform 32 is slightly larger than the outer diameter of the spring 2. This allows the locking platform 32 to be firmly secured to the outer diameter of the spring 2, preventing the spring 2 from falling off on its own.

[0023] For ease of automated mass production and riveting, preferably, the clamping table 32 is formed by plastically deforming the cylinder 31 through riveting. During riveting, the point where the cylinder 31 is fixed to one end of the spring 2 also undergoes plastic deformation, causing the cylinder 31 to deform outward and fill the space at one end of the spring 2, thereby firmly fixing one end of the spring 2 onto the cylinder 31. In this way, after the cylinder 31 undergoes plastic deformation, it fills the interior of one end of the spring 2, firmly securing that end of the spring 2.

[0024] Preferably, the clamping platform 32 is formed by riveting the top of the cylinder 31 with a machine after one end of the spring 2 is fitted onto the outer diameter of the cylinder 31, causing the cylinder 31 to undergo plastic deformation. This facilitates the installation of the spring 2 and the riveting after installation.

[0025] Preferably, the fit between the cylinder 31 and the rivet hole 11 is an interference fit. The interference fit helps to firmly fix the rivet 3 to the spring seat 1, preventing the rivet 3 from falling off on its own before riveting, reducing manual operation before riveting, and the step of installing the rivet 3 in the spring hole 11 can be automatically completed by an automated machine.

[0026] Preferably, the rivet 3 has a contact point 33 on the end away from the mounting plate 32, and the surface of the contact point 33 is silver-plated. Silver plating significantly reduces contact resistance, decreases the probability of arcing, and reduces the arc current, preventing damage to electrical switching equipment.

[0027] Preferably, the rivet 3 is made entirely of copper. Copper not only has good electrical conductivity, but also good plastic deformation ability.

[0028] Preferably, the mean diameter of the spring 2 gradually decreases from the end closest to the cylinder 31, and the pitch of the spring 2 also gradually decreases from the end closest to the cylinder 31. In this way, the spring sections near the spring seat 1 will not collide with each other during compression, increasing the spring's compression capacity.

[0029] Since the spring seat 1 is often a moving part inside the switch (especially in auxiliary switches) and frequently reciprocates in a straight line, in order to allow the spring seat 1 to move in a straight line better and prevent it from getting stuck, preferably, the spring seat 1 is made of sheet metal stamping, and there are two rivet holes 11 symmetrically distributed on both sides of the spring seat 1, and there are two springs 2 and two rivets 3.

[0030] This embodiment should not be regarded as a limitation of the utility model, but any improvement made based on the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. A spring and spring seat riveting structure, characterized by: The device includes a spring seat (1), a spring (2), and a rivet (3). The spring seat (1) has a rivet hole (11). One end of the rivet (3) has a cylinder (31). The cylinder (31) matches the rivet hole (11). The cylinder (31) has a circular locking platform (32). The inner diameter of one end of the spring (2) matches the diameter of the cylinder (31). The diameter of the locking platform (32) is larger than that of the cylinder (31). One end of the spring (2) is fixedly installed in the groove formed by the cylinder (31) and the locking platform (32).

2. The spring and spring seat riveting structure according to claim 1, characterized in that: The diameter of the card holder (32) is slightly larger than the outer diameter of the spring (2).

3. The spring and spring seat riveting structure according to claim 2, characterized in that: The mounting plate (32) is formed by riveting the cylinder (31) to cause plastic deformation. During riveting, the cylinder (31) and the fixed end of the spring (2) also undergo plastic deformation, causing the cylinder (31) to deform outward and fill the space at one end of the spring (2), thereby firmly fixing one end of the spring (2) on the cylinder (31).

4. The spring and spring seat riveting structure according to claim 3, characterized in that: The clamping platform (32) is formed by fitting one end of the spring (2) onto the outer diameter of the cylinder (31) and then riveting the top of the cylinder (31) with a machine to cause plastic deformation of the cylinder (31).

5. The spring and spring seat rivet structure of claim 4, wherein: The fit between the cylinder (31) and the rivet hole (11) is an interference fit.

6. The spring and spring seat rivet structure of claim 4, wherein: The rivet (3) has a contact point (33) on the end away from the card table (32), and the surface of the contact point (33) is silver plated.

7. The spring and spring seat rivet structure of claim 6, wherein: The rivet (3) is made entirely of copper.

8. The spring and spring seat rivet structure of claim 7, wherein: The spring (2) has a gradually decreasing mean diameter starting from the end closest to the cylinder (31), and the pitch of the spring (2) also gradually decreases starting from the end closest to the cylinder (31).

9. The spring and spring seat riveting structure according to any one of claims 1 to 8, characterized in that: The spring seat (1) is made of sheet metal stamping. There are two rivet holes (11) symmetrically distributed on both sides of the spring seat (1). There are two springs (2) and two rivets (3).

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