Radio frequency coaxial connector with anti-loosening structure
The multi-stage locking mechanism with its horizontal and vertical dual-stage locking design solves the problem of loosening of RF coaxial connectors under vibration, achieving connector stability and convenient operation, facilitating quick disassembly, and ensuring reliable signal transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 镇江彤吉精密电子科技有限公司
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-14
Smart Images

Figure CN224123631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radio frequency coaxial connector technology, and specifically discloses a radio frequency coaxial connector with an anti-loosening structure. Background Technology
[0002] In automotive electronic systems, radio frequency coaxial connectors are widely used in key components such as vehicle communication (e.g., 5G, V2X), GPS navigation, radar (millimeter-wave radar, ultrasonic radar), in-vehicle entertainment systems, and intelligent driving sensors.
[0003] Existing anti-loosening structures mostly use threaded locking, but threaded locking is cumbersome and may still loosen under high-frequency vibration; it is also difficult to meet multi-level locking requirements, affecting the reliability of the connection. In addition, disassembly by bolts requires tools, which is extremely inconvenient. Therefore, an RF coaxial connector with an anti-loosening structure is needed to solve the above problems. Utility Model Content
[0004] This invention proposes a radio frequency coaxial connector with an anti-loosening structure. Through a multi-stage locking mechanism, the connector can remain stable under vibration, avoid signal transmission interruption, and is easy to disassemble and use.
[0005] This utility model is implemented as follows: a radio frequency coaxial connector with an anti-loosening structure includes a female end and a male end, and a multi-level locking mechanism is provided between the outer walls of the female end and the male end.
[0006] The multi-stage locking mechanism includes two left-right distributed first support blocks fixedly connected to the outer wall of the female end, and two left-right distributed second support blocks fixedly connected to the outer wall of the male end. Each of the two first support blocks has a plate fixedly connected to its lower end. Each of the two second support blocks has a rectangular hole through its outer wall that is adapted to the two plates. Each of the two plates has a first insertion hole and a second insertion hole through its outer wall and lower end, respectively. Each of the two second support blocks has a fixing plate fixedly connected to its lower end. Each of the two fixing plates has a first spring fixedly connected to its opposite side. Each of the two first springs has an L-shaped plate fixedly connected to its opposite end. Each of the two L-shaped plates has a first insertion rod fixedly connected to its inner wall, located inside the two first insertion holes. Each of the two L-shaped plates has a second spring fixedly connected to its inner wall. Each of the two second springs has a sliding plate fixedly connected to its upper end. Each of the two sliding plates has a second insertion rod fixedly connected to its upper end, located inside the two second insertion holes.
[0007] As a preferred embodiment of the present invention, an RF coaxial connector with an anti-loosening structure is provided, wherein the lower ends of the two second support blocks are provided with first T-shaped grooves, the upper ends of the two L-shaped plates are slidably connected to the corresponding first T-shaped grooves through T-shaped sliders, the interiors of the two L-shaped plates are provided with second T-shaped grooves, and the two slide plates are slidably connected to the corresponding second T-shaped grooves through T-shaped sliders respectively.
[0008] As a preferred embodiment of the radio frequency coaxial connector with an anti-loosening structure according to this utility model, pressure plates are fixedly connected to the opposite sides of the two slide plates.
[0009] As a preferred embodiment of the present invention, an RF coaxial connector with an anti-loosening structure is provided at the lower end of the female end, and an elastic sealing ring is embedded in the annular sealing groove.
[0010] As a preferred embodiment of the radio frequency coaxial connector with an anti-loosening structure according to this utility model, the ends of both the first and second inserts are tapered.
[0011] As a preferred embodiment of the radio frequency coaxial connector with an anti-loosening structure according to this utility model, the lower ends of the two insert plates are respectively attracted to the upper end surfaces of the two slide plates by magnetic blocks.
[0012] The beneficial effects of this utility model are:
[0013] (1) Dual anti-loosening mechanism: The horizontal and vertical dual-level locking design is adopted. The first and second plugs are locked respectively to effectively prevent the connector from loosening horizontally and vertically under vibration, impact and other working conditions, and ensure stable signal transmission.
[0014] (2) Automatic locking, easy to operate
[0015] During connection, the first and second springs automatically drive the plug rod into the socket, achieving quick and reliable locking without the need for additional tools. Disassembly is easy by simply pressing the sliding plate, facilitating maintenance and repair. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1 This is an overall structural diagram of a radio frequency coaxial connector with an anti-loosening structure according to the present invention.
[0018] Figure 2 This is an overall cross-sectional view of the present invention;
[0019] Figure 3 This is a partial structural diagram of the present invention;
[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A.
[0021] The markings in the diagram are: 1. Female end; 2. Male end; 3. First support block; 4. Second support block; 5. Insert plate; 6. Rectangular hole; 7. First insertion hole; 8. First insertion rod; 9. L-shaped plate; 10. Slide plate; 11. Second spring; 12. Second insertion rod; 13. Second insertion hole; 14. First spring; 15. Fixing plate. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0023] Please see Figure 1-4 A radio frequency coaxial connector with an anti-loosening structure includes a female end 1 and a male end 2, and a multi-level locking mechanism is provided between the outer walls of the female end 1 and the male end 2.
[0024] The multi-stage locking mechanism includes two left-right distributed first support blocks 3 fixedly connected to the outer wall of the female end 1, and two left-right distributed second support blocks 4 fixedly connected to the outer wall of the male end 2. Each of the two first support blocks 3 has a fixed insert plate 5 at its lower end. Each of the two second support blocks 4 has a rectangular hole 6 through which a rectangular hole 6 is formed, respectively adapted to the two insert plates 5. Each of the two insert plates 5 has a first insertion hole 7 and a second insertion hole 13 through which a first insertion hole 7 and a second insertion hole 13 are respectively formed. Each of the two second support blocks 4 has a fixed plate 15 at its lower end. Each of the two fixed plates 15 has a first spring 14 fixedly connected to its opposite side. Each of the two first springs 14 has an L-shaped plate 9 fixedly connected to its opposite end. Each of the two L-shaped plates 9 has a first insertion rod 8 fixedly connected to its inner wall, located inside the two first insertion holes 7. Each of the two L-shaped plates 9 has a second spring 11 fixedly connected to its inner wall. Each of the two second springs 11 has a sliding plate 10 fixedly connected to its upper end. Each of the two sliding plates 10 has a second insertion rod 12 fixedly connected to its upper end, located inside the two second insertion holes 13.
[0025] In this embodiment: During use, when the male end 2 and the female end 1 are engaged in the initial docking stage, the insert plates 5 on the two first support blocks 3 on the outer wall of the female end 1 will be inserted into the rectangular holes 6 on the second support block 4 on the outer wall of the male end 2. The insertion of the insert plates 5 provides positioning and support for the subsequent locking mechanism.
[0026] First-stage locking lateral locking: During the process of inserting the insert plate 5 into the rectangular hole 6, the first insertion hole 7 will be aligned with the first insertion rod 8 on the L-shaped plate 9. Due to the elastic force of the first spring 14, the L-shaped plate 9 will move, so that the first insertion rod 8 will automatically insert into the first insertion hole 7, forming the first-stage locking to prevent the connector from loosening laterally.
[0027] Second-stage longitudinal locking: When the insert plate 5 is fully inserted, its lower end second insertion hole 13 will align with the second insertion rod 12 on the slide plate 10. The second spring 11 pushes the slide plate 10 upward, so that the second insertion rod 12 is inserted into the second insertion hole 13, forming a second-stage locking to prevent the connector from loosening longitudinally.
[0028] To disassemble the connector, simply press the slide plate 10 or the exposed pressure plate to disengage the second insertion rod 12 from the second insertion hole 13. At the same time, the L-shaped plate 9 moves outward, causing the first insertion rod 8 to disengage from the first insertion hole 7. At this time, the insertion plate 5 can be freely pulled out from the rectangular hole 6, achieving quick separation.
[0029] As a technical optimization of this utility model, the lower ends of the two second support blocks 4 are provided with first T-shaped grooves, the upper ends of the two L-shaped plates 9 are slidably connected to the corresponding first T-shaped grooves through T-shaped sliders, the interiors of the two L-shaped plates 9 are provided with second T-shaped grooves, and the two slide plates 10 are slidably connected to the corresponding second T-shaped grooves through T-shaped sliders respectively.
[0030] In this embodiment, the stability of the movement of the L-shaped plate 9 and the slide plate 10 can be increased by the cooperation of the T-shaped slider with the corresponding first T-shaped groove and the cooperation of the T-shaped slider with the corresponding second T-shaped groove.
[0031] As a technical optimization of this utility model, pressure plates are fixedly connected to the opposite sides of the two sliding plates 10.
[0032] In this embodiment, the sliding plate 10 can be easily moved by pressing the pressure plate.
[0033] As a technical optimization of this utility model, the lower end of the female end 1 is provided with an annular sealing groove, and an elastic sealing ring is embedded in the annular sealing groove.
[0034] In this embodiment, an elastic sealing ring is used to achieve waterproofing and dustproofing of the connection interface.
[0035] As a technical optimization of this utility model, the ends of the first insertion rod 8 and the second insertion rod 12 are both tapered.
[0036] In this embodiment, since the ends of the first insertion rod 8 and the second insertion rod 12 are both tapered, it is convenient for the first insertion rod 8 and the second insertion rod 12 to be inserted into the first insertion hole 7 and the second insertion hole 13 respectively.
[0037] As a technical optimization of this utility model, the lower ends of the two insert plates 5 are respectively attracted to the upper surfaces of the two slide plates 10 through magnetic blocks.
[0038] In this embodiment: the magnetic attraction provides additional holding force for the second-stage locking, which works in conjunction with the elasticity of the second spring 11 to make the second insertion rod 12 more securely inserted into the second insertion hole 13.
[0039] The working principle and usage process of this utility model are as follows: During use, when the male end 2 and the female end 1 are engaged in the initial docking stage, the insert plates 5 on the two first support blocks 3 on the outer wall of the female end 1 will be inserted into the rectangular holes 6 on the second support block 4 on the outer wall of the male end 2. The insertion of the insert plates 5 provides positioning and support for the subsequent locking mechanism.
[0040] First-stage locking lateral locking: During the process of inserting the insert plate 5 into the rectangular hole 6, the first insertion hole 7 will be aligned with the first insertion rod 8 on the L-shaped plate 9. Due to the elastic force of the first spring 14, the L-shaped plate 9 will move, so that the first insertion rod 8 will automatically insert into the first insertion hole 7, forming the first-stage locking to prevent the connector from loosening laterally.
[0041] Second-stage longitudinal locking: When the insert plate 5 is fully inserted, its lower end second insertion hole 13 will align with the second insertion rod 12 on the slide plate 10. The second spring 11 pushes the slide plate 10 upward, so that the second insertion rod 12 is inserted into the second insertion hole 13, forming a second-stage locking to prevent the connector from loosening longitudinally.
[0042] To disassemble the connector, simply press the slide plate 10 or the exposed pressure plate to disengage the second insertion rod 12 from the second insertion hole 13. At the same time, the L-shaped plate 9 moves outward, causing the first insertion rod 8 to disengage from the first insertion hole 7. At this time, the insertion plate 5 can be freely pulled out from the rectangular hole 6, achieving quick separation. Due to the adoption of a double spring + double insertion rod structure, the connector can remain stable in a vibration environment, avoiding signal transmission interruption.
[0043] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0044] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A radio frequency coaxial connector with an anti-loosening structure, comprising a female end (1) and a male end (2), characterized in that: A multi-stage locking mechanism is provided between the outer walls of the female end (1) and the male end (2); The multi-stage locking mechanism includes two left-right distributed first support blocks (3) fixedly connected to the outer wall of the female end (1), and two left-right distributed second support blocks (4) fixedly connected to the outer wall of the male end (2). Each of the two first support blocks (3) has a fixed insert plate (5) at its lower end. Each of the two second support blocks (4) has a rectangular hole (6) through its outer wall that is adapted to the two insert plates (5). Each of the two insert plates (5) has a first insertion hole (7) and a second insertion hole (13) through its outer wall and lower end. Each of the two second support blocks (4) has a fixed plate (15) fixedly connected to its lower end. Each of the two fixed plates (15) is fixedly connected to a first spring (14) on its opposite side. Each of the two first springs (14) is fixedly connected to an L-shaped plate (9) on its opposite end. Each of the two L-shaped plates (9) is fixedly connected to a first insert rod (8) located inside the two first insertion holes (7). Each of the two L-shaped plates (9) is fixedly connected to a second spring (11). Each of the two second springs (11) is fixedly connected to a sliding plate (10) at its upper end. Each of the two sliding plates (10) is fixedly connected to a second insert rod (12) located inside the two second insertion holes (13) at its upper end.
2. The radio frequency coaxial connector with an anti-loosening structure according to claim 1, characterized in that: The lower ends of the two second support blocks (4) are provided with first T-shaped grooves, the upper ends of the two L-shaped plates (9) are slidably connected to the corresponding first T-shaped grooves through T-shaped sliders, the interiors of the two L-shaped plates (9) are provided with second T-shaped grooves, and the two slide plates (10) are slidably connected to the corresponding second T-shaped grooves through T-shaped sliders respectively.
3. The radio frequency coaxial connector with an anti-loosening structure according to claim 1, characterized in that: Each of the two sliding plates (10) has a pressure plate fixedly connected to its opposite side.
4. The radio frequency coaxial connector with an anti-loosening structure according to claim 1, characterized in that: The lower end of the female end (1) is provided with an annular sealing groove, and an elastic sealing ring is embedded in the annular sealing groove.
5. The radio frequency coaxial connector with an anti-loosening structure according to claim 1, characterized in that: The ends of the first insertion rod (8) and the second insertion rod (12) are both tapered.
6. The radio frequency coaxial connector with an anti-loosening structure according to claim 1, characterized in that: The lower ends of the two insert plates (5) are attracted to the upper surfaces of the two slide plates (10) respectively by magnetic blocks.