Power signal combined circular plug
By designing a wave spring locking ring structure and a power signal combination circular plug with a reasonable signal pin layout, the problems of inconvenient locking, signal interference, and insufficient safety are solved, achieving convenient locking, reduced signal interference, and improved structural stability and safety.
Patent Information
- Application Number
- CN202520527967.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing power signal connectors suffer from problems such as inconvenient locking and unlocking, severe signal interference, unstable structure, and insufficient safety.
A circular plug combining power and signal inputs was designed, employing a wave spring locking ring structure to ensure reliable locking and convenient unlocking; the internal signal pins are rationally arranged to reduce interference; the eight-pronged locking plate and nut work together to increase stability; and anti-electric shock caps are added to the power pins to enhance safety.
It enables a convenient locking and unlocking process, reduces signal interference, enhances structural stability and security, and ensures the stability of signal transmission and the safety of use.
Smart Images

Figure CN223967404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, specifically a circular plug for power signal combination. Background Technology
[0002] Existing power signal connectors have the following drawbacks:
[0003] Imperfections in the locking and unlocking mechanism:
[0004] Some products on the market have a poor feel when locking, making it difficult for users to accurately judge the locking status.
[0005] The unlocking process may not be smooth, requiring users to spend extra time and effort to unlock, thus reducing efficiency.
[0006] Signal interference problem:
[0007] Some products have an unreasonable layout of signal pins, which leads to significant interference between the signal pins, affecting the stability and accuracy of signal transmission.
[0008] The structure is not very stable.
[0009] Some product components are not tightly connected, posing a safety hazard.
[0010] Lack of security:
[0011] Some products have power connectors that pose a risk of electric shock.
[0012] Therefore, it is necessary to provide a circular plug for combining power signals to solve the above-mentioned technical problems. Utility Model Content
[0013] To solve the above-mentioned technical problems, this utility model provides a circular plug for power signal combination.
[0014] This utility model provides a circular power signal combination plug, including a middle sleeve. A male plug core is embedded in one end of the middle sleeve. A limiting plate is provided in the middle of the male plug core. A locking ring is rotatably connected to the outside of the male plug core, with one end of the locking ring positioned between the limiting plate and the end of the middle sleeve. A steel ring and a wave spring are sequentially installed on the outside of the male plug core between the limiting plate and the locking ring. The function of the wave spring is: when the plug is locked with the corresponding component, it provides a good tactile feel, indicating that it is locked; when the component is locked with the corresponding component, the elasticity of the wave spring pushes the locking ring backward, causing the locking ring's latch to more tightly engage the other end, ensuring a better and tighter lock, thus guaranteeing product reliability and waterproof performance; when unlocking, when the latch on the locking ring leaves the locking position of the mating component, the elasticity of the wave spring pushes the locking ring to automatically separate from the corresponding end, providing an automatic unlocking function.
[0015] The male connector core is internally fitted with symmetrically arranged power pins, a set of three signal pins, and a set of five signal pins. The structure is designed with signal pins on one side and another on the other, according to the product's functional requirements. This reduces signal interference between the signal pins.
[0016] The middle sleeve has an eight-pronged locking plate at the end furthest from the male plug core. A clamping coil is installed inside the eight-pronged locking plate. A nut is threaded to the end of the middle sleeve, and the eight-pronged locking plate mates with the nut. The end of the eight-pronged locking plate of the middle sleeve has an inverted claw shape, which can more effectively grip the clamping coil (silicone ring). Furthermore, when clamping the wire, the protrusions on the inverted claw can directly clamp onto the wire, thereby increasing the clamping force of the middle sleeve and increasing the stability of the product.
[0017] Preferably, the male plug core and the middle sleeve are connected by threads, and a waterproof ring for the middle sleeve is installed on the side wall of the male plug core to seal the connection between the male plug core and the middle sleeve.
[0018] Preferably, the end of the power pin is equipped with a safety cap to prevent electric shock, which enhances safety.
[0019] Preferably, the inner wall of the locking ring is provided with three buckles at equal angles. The three buckles can cooperate with the other end to achieve interlocking and locking. The arc shape can achieve the function more smoothly.
[0020] Preferably, a waterproof end ring is installed on the outer side of the male plug core near the limiting plate, which serves to provide waterproofing when it mates with the female connector.
[0021] Preferably, the side wall of the male plug core is provided with a foolproof rib, which plays a positioning and foolproof role when it is plugged into the female connector.
[0022] Compared with related technologies, the present invention provides the following beneficial effects:
[0023] 1. Convenience of locking and unlocking:
[0024] When the plug is locked with the corresponding component, the locking ring will be pushed back due to the elastic force of the wave spring, so that the buckle on the locking ring will lock the other end more tightly. The user can clearly feel the good feel, thus confirming the reliability of the locking.
[0025] When unlocking, once the latch on the lock ring leaves the locking position of the mating part, the elastic force of the wave spring will push the lock ring to automatically separate from the corresponding end, realizing a convenient automatic unlocking function.
[0026] 2. Reduction of signal interference:
[0027] The male plug has symmetrically installed power pins, a set of three signal pins, and a set of five signal pins inside the plug core. The layout of one side with signal pins and the other side with signal pins effectively reduces signal interference between signal pins and improves the stability of signal transmission.
[0028] 3. Structural stability:
[0029] The combination of the eight-prong locking plate and the nut, along with the raised dots on the reverse claws, increases the clamping force of the middle sleeve on the wire and enhances the product's stability. Meanwhile, the synergistic effect of components such as the locking ring, wave spring, and steel ring further strengthens the overall stability of the plug.
[0030] 4. Safety:
[0031] The power pins are fitted with electric shock protection caps, which effectively prevent electric shock accidents and improve safety during use. Attached Figure Description
[0032] Figure 1 This is an exploded view of the overall structure of this utility model;
[0033] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0034] Figure 3 This is the front view of the present utility model.
[0035] The following are the labels in the diagram: 1. Middle sleeve; 2. Male plug core; 3. Waterproof ring of middle sleeve; 4a. Power pin; 4a1. Safety cap for preventing electric shock; 4b. Three signal pins; 4c. Five signal pins; 5. Steel ring; 6. Wave spring; 7. Locking ring; 71. Buckle; 8. Middle sleeve (with eight-claw locking plate 81); 81. Eight-claw locking plate; 9. Clamping coil; 10. Nut; 11. Limiting plate; 21. Anti-fooling rib. Detailed Implementation
[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0037] Please refer to 1- Figure 3 A circular power signal connector, the core of which includes a middle sleeve 8, one end of which is cleverly embedded with a male plug core 2. A limiting plate 11 is cleverly positioned in the middle of the male plug core 2 to restrict and secure the internal components. On the outside of the male plug core 2, a locking ring 7 is rotatably connected to it, one end of which is cleverly positioned between the limiting plate 11 and the end of the middle sleeve 8, forming a stable locking structure.
[0038] Between the limiting plate 11 and the locking ring 7, a steel ring 5 and a wave spring 6 are sequentially installed on the outer side of the male plug core 2. The wave spring 6 is ingeniously designed: when the plug is locked with the corresponding part, the user can clearly feel a good tactile feedback, confirming the reliability of the lock. At the same time, due to the elastic force of the wave spring 6, the locking ring 7 is pushed backward, making the buckle 71 on the locking ring 7 more tightly fasten to the other end, thus ensuring the locking effect and waterproof performance of the product. When unlocking, once the buckle 71 on the locking ring 7 leaves the locking position of the mating part, the elastic force of the wave spring 6 will push the locking ring 7 to automatically separate from the corresponding end, realizing a convenient automatic unlocking function.
[0039] The internal structure of the male connector core 2 is equally sophisticated, featuring symmetrically mounted power pins 4a, a set of three signal pins 4b, and a set of five signal pins 4c. This structural design not only meets the product's functional requirements but also effectively reduces signal interference between the pins through the layout of three signal pins on one side and five signal pins on the other.
[0040] The end of the middle sleeve 8 furthest from the male plug core 2 is designed with an eight-prong locking plate 81, on the inner side of which the clamping coil 9 is cleverly installed. The end of the middle sleeve 8 is connected to the nut 10 by threads, and the cooperation between the eight-prong locking plate 81 and the nut 10 makes the entire structure more stable. It is worth noting that the end of the eight-prong locking plate 81 of the middle sleeve 8 has a reverse gripping design, which can more effectively grip the clamping coil 9 (silicone ring). At the same time, the protrusions on the reverse claws can directly clamp onto the wire, thereby increasing the clamping force of the middle sleeve 8 and the stability of the product.
[0041] In terms of connection, the male plug core 2 and the middle sleeve 8 are tightly connected by threads, and a waterproof ring 3 for the middle sleeve is installed on the side wall of the male plug core 2 to ensure the sealing of the connection between the male plug core 2 and the middle sleeve 8. In addition, an electric shock protection cap 4a1 is installed at the end of the power pin 4a, further improving the safety of use.
[0042] Three latches 71 are set at equal angles on the inner wall of the locking ring 7. These latches can cooperate with the other end to achieve plug-in locking, and their arc shape makes this function smoother. An end waterproof ring 1 is also installed on the outer side of the male plug core 2 near the limiting plate 11, which provides good waterproofing when mated with the female connector. The side wall of the male plug core 2 is cleverly equipped with a foolproof rib 21. This design provides positioning and prevents fooling when plugged into the female connector, ensuring the accuracy and stability of the connection.
[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A power signal combination round plug, characterized by, The utility model provides a male plug rubber core (2) is embedded in one end of the middle sleeve (8) and is installed, the middle part of male plug rubber core (2) is equipped with the limit board (11), the outside rotation of male plug rubber core (2) is connected with the lock ring (7), and one end of lock ring (7) is arranged between limit board (11) and the end of middle sleeve (8), the outside of male plug rubber core (2) is located between limit board (11) and one end of lock ring (7) and is installed steel ring (5) and wave spring (6) in proper order, the inside of male plug rubber core (2) is installed and is symmetrically installed power pin (4a), a group of three signal pins (4b) and a group of five signal pins (4c), the end of the middle sleeve (8) is equipped with eight claw lock board (81) away from male plug rubber core (2), the inside of eight claw lock board (81) is installed and is clamped wire loop (9), and the end of middle sleeve (8) is connected with the nut (10) through screw thread, and eight claw lock board (81) cooperates with nut (10).
2. The power signal combination round plug according to claim 1, characterized in that, The male plug rubber core (2) and the middle sleeve (8) are connected through screw thread, and the sidewall of the male plug rubber core (2) is provided with a middle sleeve waterproof ring (3).
3. The power signal combination round plug according to claim 1, wherein, The end of the power pin (4a) is provided with an electric shock safety protection cap (4a1).
4. The power signal combination round plug according to claim 3, wherein, The inner wall of the lock ring (7) is provided with three buckles (71) at equal angles.
5. The power signal combination round plug according to claim 1, wherein, The outside of the male plug rubber core (2) is provided with an end waterproof ring (1) close to the limit board (11).
6. The power signal combination round plug according to claim 1, wherein, The sidewall of the male plug rubber core (2) is provided with a foolproof rib (21).