Anti-separation insertion spring terminal

Abstract

The utility model relates to an anti-separation plug spring terminal, comprising a plug spring housing, one end of the plug spring housing is provided with a riveting part, the other end of the plug spring housing is provided with a plugging part, a winding part is arranged between the riveting part and the plugging part, the winding part is provided with a contact column assembly, and two side walls of the winding part are provided with through holes. The contact column assembly comprises a winding column installed in the through hole, the outer wall, located on the winding portion, of the winding column is connected with a nut, the end of the winding column is provided with an anti-disengaging screw groove, an anti-disengaging screw is arranged in the anti-disengaging screw groove in a threaded connection mode, and the anti-disengaging screw is sleeved with an anti-disengaging cylinder. Three limiting columns are installed on the outer wall of the anti-disengaging cylinder and distributed in a triangular shape, and a spiral groove matched with the winding column is formed in the inner wall of each limiting column. The technical scheme of the utility model has the technical effects that the connection strength between the winding post and the winding part is improved, and the influence of external factors on the winding post is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of spring-loaded terminals, and in particular to a spring-loaded terminal that prevents detachment. Background Technology

[0002] When using a spring-loaded terminal block, the wire needs to be fixed to the spring-loaded terminal block, and then the spring-loaded terminal block is fixed in the terminal block. The pin that is inserted into the spring-loaded terminal block is also fixed in the terminal block, thereby fixing the two terminal blocks and realizing the connection between the spring-loaded terminal block and the pin, so that the circuit is conductive. Currently, patent number CN202123454818.5 describes a spring-loaded terminal block that prevents detachment, including a housing. The housing is characterized by having a riveting part at one end and an insertion part at the other end. A winding part is provided between the riveting part and the insertion part, and the winding part has a contact post. Although the above-mentioned section can solve the problem that the wire is not easy to detach from the spring-loaded terminal block after crimping by setting the winding post, the operating environment of the spring-loaded terminal block is relatively harsh, and the strength of the winding post is poor, making it easy to be damaged, which leads to the separation of the wire from the spring-loaded terminal block and affects the use. Therefore, the existing technology needs to be improved. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a spring-loaded terminal that improves the connection strength between the winding post and the winding section, and reduces the impact of external factors on the winding post to prevent detachment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spring-loaded terminal for preventing detachment, comprising a spring housing, one end of which is provided with a riveting portion and the other end with a plug-in portion, a winding portion between the riveting portion and the plug-in portion, a contact post assembly at the winding portion, through holes on both sides of the winding portion, the contact post assembly including a winding post installed in the through hole, a nut connected to the outer wall of the winding post, an anti-detachment groove at the end of the winding post, an anti-detachment screw rod screwed into the anti-detachment groove, an anti-detachment sleeve sleeved on the outside of the anti-detachment screw rod, and three limiting posts installed on the outer wall of the anti-detachment sleeve, the three limiting posts being triangularly distributed, and a spiral groove cooperating with the winding post being opened on the inner wall of each limiting post.

[0005] By adopting the above technical solution, the winding part is designed such that, when the core wire is thinner and the spring terminal is larger, the core wire is pressed by the riveting part after passing around the winding post. This makes the part of the core wire pressed by the riveting part thicker, and the core wire is subjected to greater pressing force after being pressed by the spring terminal. This increases the friction between the core wire and the spring terminal, making it less likely for the wire to detach from the spring terminal, thus increasing the connection stability between the wire and the spring terminal. The setting of the contact post assembly and the setting of the external anti-detachment component of the winding post in the contact post assembly improve the connection strength between the winding post and the winding part, reduce the influence of external factors on the winding post, and thus avoid easy damage that could lead to the separation of the wire from the spring terminal, affecting its use. The post body of the winding post is set inside the winding part, the post head of the winding post is set on the left outer side of the winding part, the nut on the winding post is set on the right outer side of the winding part, the inner wall of the through hole is provided with internal threads, and the outer walls of both ends of the winding post are provided with external threads.

[0006] The present invention further comprises: the inner wall of the anti-detachment cylinder is provided with a reverse internal thread, and the outer part of the anti-detachment screw that fits with the anti-detachment cylinder is provided with a reverse external thread, and the reverse internal thread and the reverse external thread cooperate with each other.

[0007] By adopting the above technical solution, the external thread of the anti-detachment screw is divided into two parts: the front part mates with the internal thread of the anti-detachment screw groove, and the rear part mates with the reverse internal thread of the anti-detachment cylinder, thereby installing the anti-detachment cylinder on the outside of the anti-detachment screw.

[0008] The present invention is further provided in that: the outer wall of the nut is provided with an annular groove, and the end of the limiting post is disposed in the annular groove.

[0009] By adopting the above technical solution, when the anti-loosening screw is screwed into the anti-loosening screw groove, the anti-loosening cylinder will rotate accordingly. When the limiting post contacts the nut, it can rotate in the annular rotating groove until it contacts the inner wall of the annular rotating groove, thereby holding the nut in place and performing circumferential limiting.

[0010] The present invention further comprises: a fixing ring fixedly installed on the outside of the winding post located outside the winding part; an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the winding post; the annular pressure plate is located on the upper side of the fixing ring; the spring is located on the upper side of the annular pressure plate; the annular rubber sheet is located on the lower side of the fixing ring; and a pressing block is fixedly installed at the lower edge of the annular pressure plate.

[0011] By adopting the above technical solution, when the winding column is rotated, the annular rubber sheet slides upward due to the through hole. With further twisting, the annular rubber sheet contacts the fixed ring. The annular rubber sheet deforms due to the action of the fixed ring, sealing the through hole. The spring is located on the upper side of the annular pressure plate, causing the annular pressure plate to be pressed downward due to the action of the spring. The extrusion block is pressed downward due to the action of the annular pressure plate, which further extrudes the edge of the annular rubber sheet, thereby improving the sealing effect.

[0012] The present invention further comprises: the riveting part includes a rivet wire foot and a rivet wire core foot, the rivet wire foot includes a left rivet wire foot and a right rivet wire foot, and the left rivet wire foot and the right rivet wire foot are staggered.

[0013] By adopting the above technical solution, the left and right rivet feet are staggered and pressed tightly onto the insulation of the wire, which provides double compression and fixation for the wire, further improving the stability of the connection between the wire and the spring terminal.

[0014] The present invention further includes: an arc-shaped piece on the winding part and a barb on the insertion part.

[0015] By adopting the above technical solution, the arc-shaped piece is set in front of the winding post, and its curvature matches the side of the winding post, so that the core wire can easily pass around the winding post, and the crimping process of the user is also more convenient. The setting of the barb improves the stability of the spring terminal when it is fixed with other components, making it less likely to detach and the structure is stable. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A magnified view of the structure of part A;

[0018] Figure 3 This is a structural diagram of the contact post assembly according to an embodiment of the present utility model;

[0019] Figure 4 This is a structural diagram of the anti-detachment sleeve according to an embodiment of the present utility model;

[0020] Figure 5 This is a structural diagram of the anti-detachment screw according to an embodiment of the present utility model;

[0021] The labels in the diagram mean: 1-Spring housing, 2-Riveting part, 3-Plug-in part, 4-Contact post assembly, 5-Arc-shaped piece, 6-Winding part, 7-Left riveting foot, 8-Riveting foot, 9-Barb, 10-Winding post, 11-Nut, 12-Anti-detachment groove, 13-Anti-detachment cylinder, 14-Anti-detachment screw, 15-Annular rotating groove, 16-Fixing ring, 17-Extrusion block, 18-Annular pressure plate, 19-Annular rubber sheet, 20-Spring, 21-Limiting post, 22-Spiral groove, 23-Through hole. Detailed Implementation

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0023] See appendix Figure 1-5 This utility model discloses an anti-detachment spring terminal, including a spring housing 1. One end of the spring housing 1 is provided with a riveting part 2, and the other end is provided with a plugging part 3. A winding part 6 is provided between the riveting part 2 and the plugging part 3. A contact post assembly 4 is provided at the winding part 6. Through holes 23 can be opened on both sides of the winding part 6. The contact post assembly 4 includes a winding post 10 installed in the through hole 23. A nut 11 is connected to the outer wall of the winding post 10. An anti-detachment screw groove 12 is provided at the end of the winding post 10. An anti-detachment screw rod 14 is screwed into the inside of the anti-detachment screw groove 12. An anti-detachment sleeve 13 is sleeved on the outside of the anti-detachment screw rod 14. Three limiting posts 21 are installed on the outer wall of the anti-detachment sleeve 13. The three limiting posts 21 are distributed in a triangle. The inner wall of each limiting post 21 is provided with a spiral groove 22 that cooperates with the winding post 10. The winding section 6, when the core wire is thinner and the spring terminal is larger, allows the core wire to be wrapped around the winding post 10 and then pressed by the riveting section 2. This makes the portion of the core wire pressed by the riveting section 2 thicker, and the core wire experiences greater pressure after being pressed by the spring terminal. This increases the friction between the core wire and the spring terminal, making it less likely for the wire to detach from the spring terminal, thus increasing the connection stability between the wire and the spring terminal. The contact post assembly 4 and the external anti-detachment assembly of the winding post 10 in the contact post assembly 4 further enhance this connection. The design of the components improves the connection strength between the winding post 10 and the winding part 6, reduces the influence of external factors on the winding post 10, and avoids easy damage that could lead to the separation of the wire from the spring terminal, affecting its use. The body of the winding post 10 is located inside the winding part 6, the head of the winding post 10 is located on the left outer side of the winding part 6, the nut 11 on the winding post 10 is located on the right outer side of the winding part 6, the inner wall of the through hole 23 is provided with internal threads, and the outer walls of both ends of the winding post 10 are provided with external threads.

[0024] This embodiment further includes the following configuration: the inner wall of the anti-detachment cylinder 13 is provided with a reverse internal thread, and the outer part of the anti-detachment screw 14 that fits against the anti-detachment cylinder 13 is provided with a reverse external thread, with the reverse internal thread and the reverse external thread engaging. The thread on the outer part of the anti-detachment screw 14 is divided into two parts: the front part engages with the internal thread of the anti-detachment screw groove 12, and the rear part engages with the reverse internal thread of the anti-detachment cylinder 13, thereby installing the anti-detachment cylinder 13 on the outside of the anti-detachment screw 14.

[0025] This embodiment further includes an annular groove 15 on the outer wall of the nut 11, with the end of the limiting post 21 positioned within the annular groove 15. When the anti-loosening screw 14 is screwed into the anti-loosening groove 12, the anti-loosening cylinder 13 rotates accordingly. When the limiting post 21 contacts the nut 11, it can rotate within the annular groove 15 until it contacts the inner wall of the annular groove 15, thereby holding the nut 11 in place and providing circumferential positioning.

[0026] This embodiment further includes the following configuration: a fixing ring 16 is fixedly installed on the outside of the winding post 10, located outside the winding section 6. An annular pressure plate 18, a spring 20, and an annular rubber sheet 19 are fitted onto the circumferential surface of the winding post 10. The annular pressure plate 18 is located above the fixing ring 16, the spring 20 is located above the annular pressure plate 18, and the annular rubber sheet 19 is located below the fixing ring 16. A pressing block 17 is fixedly installed at the lower edge of the annular pressure plate 18. When the winding post 10 is rotated, the annular rubber sheet 19 slides upward due to the through hole 23. With further rotation, the annular rubber sheet 19 contacts the fixing ring 16, deforming due to the action of the fixing ring 16 and sealing the through hole 23. The spring 20, located above the annular pressure plate 18, causes the annular pressure plate 18 to be pressed downward by the spring 20. The pressing block 17, also pressed downward by the annular pressure plate 18, further presses the edge of the annular rubber sheet 19, thereby improving the sealing effect.

[0027] This embodiment further includes the following configuration: the riveting part 2 comprises a riveting wire sheath and a riveting wire core. The riveting wire sheath includes a left riveting wire sheath 7 and a right riveting wire sheath 8, which are staggered. The staggered left riveting wire sheath 7 and right riveting wire sheath 8 press against the insulation of the wire, providing double compression and fixation for the wire, further improving the stability of the connection between the wire and the spring terminal.

[0028] This embodiment further includes the following features: the winding portion 6 is provided with an arc-shaped piece 5, and the insertion portion 3 is provided with a barb 9. The arc-shaped piece 5 is positioned in front of the winding post 10, and its curvature matches the side of the winding post 10, allowing the core wire to easily pass around the winding post 10. This also makes the crimping process more convenient for the user. The barb 9 enhances the stability of the spring terminal when it is fixed to other components, making it less prone to detachment and ensuring a robust structure.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A spring-loaded terminal block for preventing detachment, comprising a spring housing, characterized in that: One end of the spring housing is provided with a riveting part, and the other end is provided with a plugging part. A winding part is provided between the riveting part and the plugging part. A contact post assembly is provided at the winding part. Both sides of the winding part can be provided with through holes. The contact post assembly includes a winding post installed in the through hole. A nut is connected to the outer wall of the winding part. An anti-loosening groove is provided at the end of the winding post. An anti-loosening screw is screwed into the anti-loosening groove. An anti-loosening sleeve is sleeved on the outside of the anti-loosening screw. Three limiting posts are installed on the outer wall of the anti-loosening sleeve. The three limiting posts are distributed in a triangle. The inner wall of each limiting post is provided with a spiral groove that cooperates with the winding post.

2. The anti-disengagement spring terminal according to claim 1, characterized in that: The inner wall of the anti-detachment cylinder is provided with a reverse internal thread, and the outer part of the anti-detachment screw that fits with the anti-detachment cylinder is provided with a reverse external thread, and the reverse internal thread and the reverse external thread are matched.

3. The anti-disengagement spring terminal according to claim 2, characterized in that: The outer wall of the nut is provided with an annular groove, and the end of the limiting post is disposed in the annular groove.

4. The anti-disengagement spring terminal according to claim 1, characterized in that: A fixing ring is fixedly installed on the outside of the winding post located outside the winding part, and an annular pressure plate, a spring and an annular rubber sheet are fitted on the circumferential surface of the winding post.

5. The anti-disengagement spring terminal according to claim 4, characterized in that: The annular pressure plate is located above the fixed ring, the spring is located above the annular pressure plate, the annular rubber sheet is located below the fixed ring, and a compression block is fixedly installed at the lower edge of the annular pressure plate.

6. The anti-disengagement spring terminal according to claim 1, characterized in that: The riveting part includes a rivet wire insert and a rivet wire core. The rivet wire insert includes a left rivet wire insert and a right rivet wire insert, which are staggered.

7. The anti-disengagement spring terminal according to claim 1, characterized in that: The winding section is provided with an arc-shaped piece, and the insertion section is provided with a barb.

Images