Combined bending contact pin sleeve
By using a combined bending contact sleeve design and a flexible connecting piece and movable piece structure, the clamping force of the plug is enhanced, which solves the problems of poor contact and overheating caused by frequent use of the sleeve and improves the service life of the sleeve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KANGNI TECH IND
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
AI Technical Summary
Existing socket sockets suffer from reduced elasticity of conductive sheets due to frequent use, leading to poor contact and overheating issues.
The device employs a combined bent contact insert structure, including an L-pole conductive plate, a grounding conductive plate, and an N-pole conductive plate. The design of elastic connecting plates and movable plates increases the clamping force and reduces fatigue strength. The cooperation of limiting plates and baffles enhances the clamping force and service life of the plug.
It effectively increases the clamping force of the plug, reduces fatigue strength, improves the service life of the socket, and avoids poor contact and overload overheating.
Smart Images
Figure CN224537400U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of socket sleeve technology, and in particular to a combined bent contact piece sleeve. Background Technology
[0002] Nowadays, mobile phones, computers, and other electronic devices may run out of power while traveling or at home. As people's work pace increases, there is a need to resume work in different situations. Workplaces need to be able to meet these needs anytime, anywhere. Electronic products need to be charged, and sockets provide power to electrical appliances by connecting the plug to the appliance. Specifically, the socket's socket sleeves can be engaged with the plug pins of the appliance to achieve fixation and conductivity.
[0003] However, due to frequent use, the sockets and sockets often experience loosening, failure to draw power after insertion, and poor contact that prevents charging. Most existing conductive plates rely on the elasticity of the copper material itself to maintain contact pressure. The elasticity of the copper material is achieved through deformation. Small-radius bends or single-fold deformations involve elasticity and plastic deformation. Due to the fatigue strength of metals, the elasticity of the conductive plate weakens with repeated insertions and removals. When the plug is inserted, it causes poor contact, resulting in non-conductivity or overheating. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a combined bent contact plate insert.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A combined bent contact plate sleeve includes an L-polar conductive plate structure, a ground conductive plate structure, and an N-polar conductive plate structure. The ground conductive plate structure is located between the L-polar conductive plate structure and the N-polar conductive plate structure. The L-polar conductive plate structure and the N-polar conductive plate structure are mirror images of each other through the ground conductive plate structure. The L-polar conductive plate structure includes a first connecting piece. One end of the first connecting piece is fixedly connected to a three-pronged sleeve, and the other end of the first connecting piece is fixedly connected to a two-pronged sleeve.
[0007] The three-prong plug sleeve includes a first clamping piece located on the upper surface of the end of the first connecting piece. One end of the first clamping piece is fixedly connected to an elastic connecting piece, which is arc-shaped. The other end of the elastic connecting piece is fixedly connected to a first arc-shaped structure, and the other end of the first arc-shaped structure is fixedly connected to a second clamping piece. The second clamping piece corresponds to the first clamping piece. The three-prong plug sleeve has the same structure as the two-prong plug sleeve.
[0008] Preferably, the first connecting piece is a long strip-shaped sheet structure, and a connecting terminal is fixedly connected to the outer wall of the middle part of the first connecting piece. The connecting terminal is L-shaped and is integrally formed with the first connecting piece.
[0009] Preferably, the first clamping piece, the elastic connecting piece, the first arc-shaped structure, and the second clamping piece are integrally formed.
[0010] Preferably, a second guide plate is fixedly connected to the upper surface of the first clamping piece, and the second guide plate is an inclined plane or an arc surface.
[0011] Preferably, a first guide plate is fixedly connected to the upper surface of the second clamping piece. The first guide plate is an inclined plane or an arc surface, and the first guide plate and the second guide plate correspond to each other.
[0012] Preferably, the grounding conductive sheet structure includes a second connecting sheet, with bent structures fixedly connected to both sides of the upper part of the second connecting sheet, and a first movable sheet fixedly connected to the other side of the bent structure. The first movable sheet is perpendicular to the second connecting sheet, and a second movable sheet is fixedly connected to the top of the first movable sheet. The second movable sheet is an inclined plane, and a third clamping sheet is fixedly connected to the top of the second movable sheet. The second connecting sheet, the bent structure, the first movable sheet, the second movable sheet, and the third clamping sheet are integrally formed.
[0013] Preferably, the bottom of each of the first movable pieces is fixedly connected to a second arc-shaped structure, and the other end of each of the second arc-shaped structures is fixedly connected to a limiting piece. The limiting piece is located on the outside of the first movable piece, and the first movable piece, the second arc-shaped structure and the limiting piece are integrally formed.
[0014] Preferably, a third guide plate is fixedly connected to the top of the third clamping plate, the third guide plate being an inclined plane, and the third guide plate and the third clamping plate.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. In this utility model, when the L-pole plug is inserted into the three-prong socket, the first clamping piece is stationary when the plug just contacts the first clamping piece and the second clamping piece. When the plug continues to be inserted downwards, the elastic connecting piece is arc-shaped. The elastic connecting piece opens and drives the second clamping piece to move to the right. The elastic force applied to the elastic connecting piece can effectively increase the clamping force and is not prone to fatigue strength loss. The elastic connecting piece can effectively solve the problems of insufficient clamping force and service life.
[0017] 2. In this utility model, when the grounding part of the plug is inserted into the grounding conductive plate structure, there is a gap between the two third clamping plates at the grounding conductive plate structure. When the plug continues to be inserted downward, the third clamping plates move to both sides. The lower part of the third clamping plate opens up, causing the lower second movable plate and the first movable plate to move to the left and right. The elastic force is applied at the bending structure, which can effectively increase the clamping force and prevent fatigue strength loss. The third clamping plate can effectively solve the problems of insufficient clamping force and service life.
[0018] 2. In this utility model, when the lower part of the third clamping piece is opened, it drives the lower second movable piece and the first movable piece to move to the left and right. The first movable piece drives the limiting piece to move outward through the second arc structure. The limiting piece contacts the baffle inside the socket. The baffle applies force inward to the first movable piece and the third clamping piece through the limiting piece, thereby making the third clamping piece clamp the grounding plug. It also reduces the elastic deformation at the bending structure and increases the lifespan of the grounding conductive piece structure. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the L-pole conductive sheet structure, grounding conductive sheet structure, and N-pole conductive sheet structure of a combined bent contact sheet insert according to this utility model.
[0020] Figure 2 This is a schematic diagram of the L-polar conductive sheet structure of a combined bent contact insert according to the present invention.
[0021] Figure 3 This utility model relates to a combined bent contact piece insert. Figure 2 A schematic diagram of the local structure at point A in the middle.
[0022] Figure 4 This is a schematic diagram of a combined bent contact insert grounding conductive sheet structure according to the present invention.
[0023] Figure 5 This is a front view of a combined bent contact insert grounding conductive sheet structure according to the present invention.
[0024] Figure 6 This is a front view of the grounding conductive sheet structure of the combined bent contact sheet insert of this utility model after installation.
[0025] The diagram is labeled as follows: 1. L-polar conductive sheet structure; 11. First connecting piece; 12. Three-pronged insert; 121. First clamping piece; 122. Elastic connecting piece; 123. First arc-shaped structure; 124. Second clamping piece; 125. First guide piece; 126. Second guide piece.
[0026] 13. Two-prong socket; 14. Connecting terminal;
[0027] 2. Grounding conductive sheet structure; 21. Second connecting piece; 22. Bending structure; 23. First movable piece; 24. Second movable piece; 25. Third clamping piece; 26. Third guide piece; 27. Second arc-shaped structure; 28. Limiting piece;
[0028] 3. N-pole conductive sheet structure. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] As attached Figure 1 To be continued Figure 5 As shown:
[0031] A combined bent contact plate sleeve includes an L-polar conductive plate structure 1, a ground conductive plate structure 2, and an N-polar conductive plate structure 3. The ground conductive plate structure 2 is located between the L-polar conductive plate structure 1 and the N-polar conductive plate structure 3. The L-polar conductive plate structure 1 and the N-polar conductive plate structure 3 are mirror images of each other through the ground conductive plate structure 2. The L-polar conductive plate structure 1 includes a first connecting piece 11. One end of the first connecting piece 11 is fixedly connected to a three-pronged sleeve 12, and the other end of the first connecting piece 11 is fixedly connected to a two-pronged sleeve 13.
[0032] The three-prong plug sleeve 12 includes a first clamping piece 121, which is located on the upper end surface of the first connecting piece 11. One end of the first clamping piece 121 is fixedly connected to an elastic connecting piece 122, which is arc-shaped. The other end of the elastic connecting piece 122 is fixedly connected to a first arc-shaped structure 123, and the other end of the first arc-shaped structure 123 is fixedly connected to a second clamping piece 124. The second clamping piece 124 corresponds to the first clamping piece 121. The three-prong plug sleeve 12 has the same structure as the two-prong plug sleeve 13.
[0033] In the above technical solution, when the L-pole plug is inserted into the three-prong socket 12, the first clamping piece 121 is stationary when the plug just contacts the first clamping piece 121 and the second clamping piece 124. As the plug continues to be inserted downwards, the elastic connecting piece 122 is arc-shaped. The elastic connecting piece 122 opens up and drives the second clamping piece 124 to move to the right. The elastic force applied to the elastic connecting piece 122 can effectively increase the clamping force and prevent fatigue strength loss. The elastic connecting piece 122 can effectively solve the problems of insufficient clamping force and service life.
[0034] The first connecting piece 11 is a long strip-shaped sheet structure. A connecting terminal 14 is fixedly connected to the outer wall of the middle part of the first connecting piece 11. The connecting terminal 14 is L-shaped and integrally formed with the first connecting piece 11. The first clamping piece 121, the elastic connecting piece 122, the first arc-shaped structure 123, and the second clamping piece 124 are integrally formed. A second guide piece 126 is fixedly connected to the upper surface of the first clamping piece 121. The second guide piece 126 is an inclined plane or an arc surface. A first guide piece 125 is fixedly connected to the upper surface of the second clamping piece 124. The first guide piece 125 is an inclined plane or an arc surface. The first guide piece 125 and the second guide piece 126 correspond to each other.
[0035] As attached Figure 4 As shown, the grounding conductive sheet structure 2 includes a second connecting sheet 21. Bending structures 22 are fixedly connected to both sides of the upper part of the second connecting sheet 21. A first movable sheet 23 is fixedly connected to the other side of the bending structure 22. The first movable sheet 23 is perpendicular to the second connecting sheet 21. A second movable sheet 24 is fixedly connected to the top of the first movable sheet 23. The second movable sheet 24 is an inclined plane. A third clamping sheet 25 is fixedly connected to the top of the second movable sheet 24. The second connecting sheet 21, the bending structure 22, the first movable sheet 23, the second movable sheet 24, and the third clamping sheet 25 are integrally formed.
[0036] In the above technical solution, when the grounding part of the plug is inserted into the grounding conductive plate structure 2, there is a gap between the two third clamping plates 25 at the grounding conductive plate structure 2. When the plug continues to be inserted downward, the third clamping plates 25 move to both sides. The lower part of the third clamping plate 25 opens up and drives the lower second movable plate 24 and the first movable plate 23 to move to the left and right. The elastic force is applied at the bending structure 22, which can effectively increase the clamping force and is not easy to generate fatigue strength and lose strength. The third clamping plate 25 can effectively solve the problems of insufficient clamping force and service life.
[0037] As attached Figure 5 To be continued Figure 6 As shown, the bottom of the first movable piece 23 is fixedly connected to a second arc-shaped structure 27, and the other end of the second arc-shaped structure 27 is fixedly connected to a limiting piece 28. The limiting piece 28 is located on the outside of the first movable piece 23. The first movable piece 23, the second arc-shaped structure 27 and the limiting piece 28 are integrally formed. The top of the third clamping piece 25 is fixedly connected to a third guide piece 26. The third guide piece 26 is an inclined plane. The third guide piece 26 and the third clamping piece 25 are connected.
[0038] In the above technical solution, the grounding conductive sheet structure 2 is installed inside the socket. Limiting baffles are provided on both sides of the limiting sheet 28. When the lower part of the third clamping sheet 25 is opened, it drives the lower second movable sheet 24 and the first movable sheet 23 to move to the left and right. The first movable sheet 23 drives the limiting sheet 28 to move outward through the second arc structure 27. The limiting sheet 28 contacts the limiting baffle inside the socket. The baffle applies inward force to the first movable sheet 23 and the third clamping sheet 25 through the limiting sheet 28, thereby making the third clamping sheet 25 clamp the grounding plug. It also reduces the elastic deformation at the bending structure 22 and increases the service life of the grounding conductive sheet structure 2.
[0039] The specific usage and function of this embodiment are as follows:
[0040] When this utility model is used, when the plug is inserted into the three-prong socket 12, the first clamping piece 121 is stationary when the plug just contacts the first clamping piece 121 and the second clamping piece 124. When the plug continues to be inserted downwards, the elastic connecting piece 122 is arc-shaped. The elastic connecting piece 122 opens up and drives the second clamping piece 124 to move to the right. The elastic force applied at the elastic connecting piece 122 can effectively increase the clamping force and is not prone to fatigue strength loss. The elastic connecting piece 122 can effectively solve the problems of insufficient clamping force and service life.
[0041] When the grounding part of the plug is inserted into the grounding conductive plate structure 2, there is a gap between the two third clamping plates 25 at the grounding conductive plate structure 2. When the plug continues to be inserted downward, the third clamping plates 25 move to both sides. The lower part of the third clamping plates 25 opens up and drives the lower second movable plate 24 and the first movable plate 23 to move to the left and right. The elastic force is applied at the bending structure 22, which can effectively increase the clamping force and is not easy to generate fatigue strength and lose strength. The third clamping plate 25 can effectively solve the problems of insufficient clamping force and service life.
[0042] It is worth mentioning that, as shown in the attached document Figure 5 To be continued Figure 6 As shown, the grounding conductive sheet structure 2 is installed inside the socket. Baffles are provided on both sides of the limiting sheet 28. When the lower part of the third clamping sheet 25 is opened, it drives the lower second movable sheet 24 and the first movable sheet 23 to move to the left and right. The first movable sheet 23 drives the limiting sheet 28 to move outward through the second arc structure 27. The limiting sheet 28 contacts the baffle inside the socket. The baffle applies inward force to the first movable sheet 23 and the third clamping sheet 25 through the limiting sheet 28, so that the third clamping sheet 25 clamps the grounding plug. This also reduces the elastic deformation at the bending structure 22 and increases the life of the grounding conductive sheet structure 2.
[0043] Please refer to the above structure and process. Figure 1-6 .
[0044] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A combined bent contact insert, comprising an L-polar conductive sheet structure (1), a grounding conductive sheet structure (2), and an N-polar conductive sheet structure (3), wherein the grounding conductive sheet structure (2) is located between the L-polar conductive sheet structure (1) and the N-polar conductive sheet structure (3), and the L-polar conductive sheet structure (1) and the N-polar conductive sheet structure (3) are mirror images of each other via the grounding conductive sheet structure (2), characterized in that, The L-polar conductive sheet structure (1) includes a first connecting piece (11), one end of which is fixedly connected to a three-prong plug sleeve (12), and the other end of which is fixedly connected to a two-prong plug sleeve (13). The three-prong plug sleeve (12) includes a first clamping piece (121), which is located on the upper end surface of the first connecting piece (11). One end of the first clamping piece (121) is fixedly connected to an elastic connecting piece (122), which is arc-shaped. The other end of the elastic connecting piece (122) is fixedly connected to a first arc-shaped structure (123), and the other end of the first arc-shaped structure (123) is fixedly connected to a second clamping piece (124). The second clamping piece (124) corresponds to the first clamping piece (121). The three-prong plug sleeve (12) has the same structure as the two-prong plug sleeve (13).
2. The combined bent contact piece insert according to claim 1, characterized in that, The first connecting piece (11) is a long strip-shaped sheet structure. A connecting terminal (14) is fixedly connected to the outer wall of the middle part of the first connecting piece (11). The connecting terminal (14) is L-shaped and is integrally formed with the first connecting piece (11).
3. The combined bent contact piece insert according to claim 1, characterized in that, The first clamping piece (121), the elastic connecting piece (122), the first arc-shaped structure (123), and the second clamping piece (124) are integrally formed.
4. The combined bent contact piece insert according to claim 1, characterized in that, The upper surface of the first clamping piece (121) is fixedly connected to a second guide piece (126), which is an inclined plane or an arc surface.
5. A combined bent contact piece insert according to claim 4, characterized in that, The upper surface of the second clamping piece (124) is fixedly connected to a first guide piece (125), which is an inclined plane or an arc surface, and the first guide piece (125) corresponds to the second guide piece (126).
6. The combined bent contact piece insert according to claim 1, characterized in that, The grounding conductive sheet structure (2) includes a second connecting sheet (21). Both sides of the upper part of the second connecting sheet (21) are fixedly connected to a bending structure (22). The other side of the bending structure (22) is fixedly connected to a first movable sheet (23). The first movable sheet (23) is perpendicular to the second connecting sheet (21). The top of the first movable sheet (23) is fixedly connected to a second movable sheet (24). The second movable sheet (24) is an inclined plane. The top of the second movable sheet (24) is fixedly connected to a third clamping sheet (25). The second connecting sheet (21), the bending structure (22), the first movable sheet (23), the second movable sheet (24), and the third clamping sheet (25) are integrally formed.
7. A combined bent contact piece insert according to claim 6, characterized in that, The bottom of the first movable piece (23) is fixedly connected to a second arc-shaped structure (27), and the other end of the second arc-shaped structure (27) is fixedly connected to a limiting piece (28). The limiting piece (28) is located on the outside of the first movable piece (23). The first movable piece (23), the second arc-shaped structure (27) and the limiting piece (28) are integrally formed.
8. A combined bent contact insert according to claim 6, characterized in that, The top of the third clamping piece (25) is fixedly connected to a third guide piece (26), which is an inclined plane. The third guide piece (26) and the third clamping piece (25) are connected.