A coaxial connector steady butt coupling sleeve

Abstract

The utility model discloses a coaxial connector steady butt joint sleeve belongs to coaxial connector technical field, including hollow butt joint sleeve shell, the butt joint sleeve shell inside fixed shell, be equipped with telescopic axle and ball head by spring drive in the shell, the butt joint sleeve shell both ends are equipped with thread groove, still include swivel block, with swivel block is connected and has the fastening screw ring of conical inner wall and tightening groove, and the sealing ring of setting in fastening screw ring, through spring push ball head and realize quick butt joint to be inserted in the ball groove on the connector head, rotate swivel block again and make fastening screw ring spin into thread groove, utilize the extrusion effect of conical inner wall and make fastening screw ring contract. The utility model solves the comprehensive problem that connector butt joint operation is complicated, connection is not steady and poor tightness in the prior art, has convenient operation, locking force is strong, and the beneficial effect that resistance to vibration is good, sealed reliable.

Description

Technical Field

[0001] This utility model relates to the field of coaxial connector technology, and in particular to a coaxial connector stable mating sleeve. Background Technology

[0002] Coaxial connectors, as an indispensable key component in radio frequency, microwave and high-speed digital signal transmission systems, provide separable signal transmission paths between devices or systems, and their performance reliability directly affects the signal integrity of the entire system.

[0003] In many application scenarios, such as when it is necessary to extend cables, pass through wall panels, or establish connections between modular devices, it is usually necessary to perform end-to-end docking of two independent coaxial connectors. The ease of this docking operation, the stability after connection, and the sealing of the docking point are crucial to the long-term reliable operation of the system.

[0004] Currently, the common way to achieve coaxial connector mating mainly relies on threaded connections, such as using an adapter with internal threads on both ends to tighten two male connectors. Although this method can provide strong locking force, in situations where frequent plugging and unplugging is required or where operating space is limited, the repeated rotation and tightening operation is very cumbersome and inefficient, reducing the efficiency of installation and maintenance.

[0005] To address the issue of ease of operation, some quick-connect structures using snap-fit ​​or push-in locking have emerged on the market. These structures allow for connection through simple plugging and unplugging, greatly improving operation speed. However, these quick-connect structures typically rely on the elasticity of the material itself or simple mechanical locking points to maintain the connection, providing limited locking force. Under conditions of vibration, impact, or accidental cable pulling, the connection point may momentarily break or experience poor contact, leading to signal transmission interruption or quality degradation, failing to meet the application requirements of high reliability applications.

[0006] Furthermore, whether it is a traditional threaded connection or a new quick-connect structure, the joints at the connection point usually lack a specialized and efficient sealing design. This makes the connection point susceptible to erosion from external environmental factors such as moisture and dust. After long-term use, this can lead to oxidation and corrosion of the contact point, which in turn affects the stability of signal transmission and may even cause connection failure.

[0007] Therefore, this utility model proposes a coaxial connector stable mating sleeve to overcome the shortcomings of the prior art. Utility Model Content

[0008] In view of the contradiction between the cumbersome docking operation and insufficient connection stability of the existing coaxial connector ferrule, as well as the poor sealing at the docking point, this utility model aims to provide a coaxial connector ferrule with an improved structure that can effectively solve the above problems.

[0009] This utility model provides a coaxial connector stable mating sleeve, including: a hollow mating sleeve shell, an outer shell disposed inside the mating sleeve shell, a telescopic shaft, a spring, a sliding ring, a ball head, a rotating block, a fastening threaded ring, and a sealing ring.

[0010] The fastening threaded ring has a tapered inner wall and a tightening groove, and a ball head is provided at one end of the telescopic shaft.

[0011] Furthermore, the outer shell is fixed inside the docking sleeve housing, and the telescopic shaft, spring, and sliding ring are set inside the outer shell. The spring applies elastic force to the telescopic shaft through the sliding ring. The sealing ring is circumferentially set on the conical inner wall of the fastening threaded ring. The rotating block is connected to the fastening threaded ring. The two ends of the docking sleeve housing are provided with threaded grooves formed by internal threads. The fastening threaded ring squeezes the sealing ring by using the conical inner wall when screwed in through the threaded engagement with the threaded groove.

[0012] Preferably, it also includes a guide limiting block, which is fixed on the inner wall of the docking sleeve housing and is used to guide the sliding of the sliding ring and the telescopic shaft.

[0013] Preferably, there are multiple outer shells, which are evenly distributed circumferentially along the inner wall of the mating sleeve shell.

[0014] Preferably, the tightening groove of the fastening threaded ring is a plurality of slots opened along the axial direction of the fastening threaded ring.

[0015] Preferably, the rotating block and the fastening threaded ring are integrally formed.

[0016] Preferably, the outer surface of the rotating block is provided with anti-slip texture to increase friction during rotation.

[0017] Preferably, the sliding ring is sleeved on the outer periphery of the telescopic shaft and located between the spring and one end of the telescopic shaft, for transmitting the spring force.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem of cumbersome and inefficient docking operations of some connectors in the prior art by setting an elastic locking mechanism composed of a spring, a telescopic shaft and a ball head, which cooperates with the fixing ring and ball groove on the connector head.

[0020] 2. This utility model solves the problem of loosening and poor sealing performance of existing docking structures under vibration by setting a fastening threaded ring with a tapered inner wall and a tightening groove, which can radially shrink and squeeze the sealing ring when rotating and tightening. Attached Figure Description

[0021] Figure 1 A perspective view of a coaxial connector with a stable mating sleeve proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of the mating sleeve shell of a coaxial connector with a stable mating sleeve proposed in this utility model.

[0023] Figure 3 This is a cross-sectional view of the housing of a coaxial connector with a secure mating sleeve proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of a sealing ring for a coaxial connector with a stable mating sleeve, as proposed in this utility model.

[0025] Legend:

[0026] 1. Connecting sleeve housing; 2. Connecting mechanism; 201. Fixing ring; 202. Ball groove; 203. Outer shell; 204. Spring; 205. Telescopic shaft; 206. Sliding ring; 207. Guide limit block; 208. Ball head; 3. Sealing mechanism; 301. Rotating block; 302. Fastening threaded ring; 303. Tightening groove; 304. Threaded groove; 305. Sealing ring; 4. Connector head. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 4 This utility model provides a stable mating sleeve for a coaxial connector, which aims to solve the problems of insufficient stability, loosening, and poor sealing of existing coaxial connector mating structures under vibration.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, a coaxial connector ferrule includes a hollow ferrule housing 1, which serves as the mounting base for the entire device. A plurality of outer shells 203 are fixedly connected inside the ferrule mechanism 2 on the housing. These outer shells 203 are evenly distributed circumferentially along the inner wall of the ferrule housing 1. Each outer shell 203 contains a telescopic shaft 205, a spring 204, and a sliding ring 206. One end of the telescopic shaft 205 has a ball head 208, allowing it to slide within the outer shell 203. The spring 204 is located within the outer shell 203, with one end abutting against the inner wall of the outer shell 203. The other end of the spring 204 applies a continuous elastic force to the telescopic shaft 205 via the sliding ring 206. The sliding ring 206 is fitted around the outer circumference of the telescopic shaft 205 and is located at one end of the spring 204 and the telescopic shaft 205. Between them, the elastic force of the spring 204 is transmitted. A guide limiting block 207 is also fixed on the inner wall of the docking sleeve housing 1. The guide limiting block 207 guides and limits the sliding of the sliding ring 206 and the telescopic shaft 205 to ensure the stability of the movement. Both ends of the docking sleeve housing 1 are provided with internal threads to form threaded grooves 304. It also includes a rotating block 301 that can be pre-fitted onto the connector head 4, a fastening threaded ring 302 integrally formed with the rotating block 301, and a sealing ring 305. The outer surface of the rotating block 301 is provided with anti-slip texture. The fastening threaded ring 302 has a conical inner wall and a plurality of tightening grooves 303 opened along the axial direction. The sealing ring 305 is circumferentially arranged on the conical inner wall of the fastening threaded ring 302. The fastening threaded ring 302 achieves threaded connection with the threaded groove 304 through the external thread.

[0031] Please refer to Figure 2 and Figure 3 When the connector head 4 is inserted into the mating sleeve 1, the fixing ring 201 fixedly connected to the outer wall of the connector head 4 also enters along with it. The surface of the fixing ring 201 is provided with a ball groove 202. When the fixing ring 201 moves to the predetermined position, under the elastic force of the spring 204, the ball head 208 at the end of the telescopic shaft 205 is pushed out and locked into the ball groove 202. This locking structure of the ball head 208 and the ball groove 202 realizes the rapid axial positioning and initial locking of the connector head 4, preventing the connector head 4 from accidentally coming out. When it is necessary to disconnect, only a sufficiently large axial pulling force needs to be applied to make the ball head 208 overcome the elastic force of the spring 204 and come out of the ball groove 202.

[0032] Please refer to Figure 2 and Figure 4After the two connector heads 4 complete the initial docking described above, the sealing mechanism 3 begins to function, pushing the rotating block 301, which is pre-fitted on the connector head 4, toward the docking ferrule 1 and rotating the rotating block 301, so that the fastening threaded ring 302 connected to it is screwed into the threaded groove 304 at the end of the docking ferrule 1. Since the inner wall of the fastening threaded ring 302 is conical, during the screwing process, the fastening threaded ring 302 is subjected to radial compression from the threaded groove 304, causing the tightening groove 303 on the fastening threaded ring 302 to be compressed, resulting in a reduction in the diameter of the fastening threaded ring 302. This force-increasing structure of the conical thread fit converts the rotational torque into a huge radial clamping force. This clamping force is applied to the outer wall of the connector head 4 through the sealing ring 305, thereby firmly locking the connector head 4 in the docking ferrule 1. At the same time, the compressed sealing ring 305 fills all potential gaps, achieving a reliable seal.

[0033] As a preferred embodiment, to further improve the motion stability and accuracy of the sliding component, please refer to... Figure 2 and Figure 3 A guide limiting block 207 is fixedly connected to the inner wall of the docking sleeve housing 1. The guide limiting block 207 is located beside the sliding path of the sliding ring 206 and the telescopic shaft 205, providing precise guidance for the sliding ring 206 and the telescopic shaft 205 during axial reciprocating motion, and limiting radial wobble, so as to ensure that the ball head 208 can be accurately aligned and locked into the ball groove 202.

[0034] As another preferred embodiment, in order to enhance the reliability and uniformity of the engagement mechanism, the number of housings 203 can be set to multiple and they are fixedly arranged evenly at intervals along the inner wall of the mating sleeve housing 1. Correspondingly, each housing 203 is provided with an engagement assembly consisting of a telescopic shaft 205, a spring 204 and a sliding ring 206. Multiple ball heads 208 can be simultaneously engaged into the ball grooves 202 on the fixing ring 201 from different directions, so that the initial locking force on the connector head 4 is more balanced and stable.

[0035] As a specific structural implementation, in order to achieve the locking action of the sealing mechanism 3, the tightening groove 303 on the fastening threaded ring 302 can be designed as a plurality of slots opened along the axial direction of the fastening threaded ring 302. These slots can make the fastening threaded ring 302 more shrink and deform when subjected to radial compression, thereby effectively transmitting pressure to the sealing ring 305.

[0036] To simplify the manufacturing process and improve structural strength, the rotating block 301 and the fastening threaded ring 302 can be integrally molded, formed in one piece by injection molding or metal die casting, avoiding additional assembly steps and increasing overall reliability.

[0037] To facilitate user operation by hand and increase friction during rotation and tightening, the outer surface of the rotating block 301 may be provided with anti-slip texture, such as knurling, vertical grooves, or a rubber coating.

[0038] To clarify the structural relationship of the sliding ring 206, the sliding ring 206 can be designed to be sleeved on the outer periphery of the telescopic shaft 205 and precisely located between the spring 204 and the force-bearing flange of the telescopic shaft 205, ensuring that the thrust of the spring 204 can be smoothly and vertically transmitted to the telescopic shaft 205.

[0039] Working principle: When using this coaxial connector to securely mate two connector heads 4, firstly, two rotating blocks 301 are pre-fitted onto the corresponding two connector heads 4. Then, the two connector heads 4 are aligned with the openings at both ends of the ferrule housing 1 and inserted inward. During insertion, the retaining rings 201 fixedly connected to the outer wall of the connector head 4 also enter the interior of the ferrule housing 1. When the retaining rings 201 move to the point where the ball groove 202 coincides with the ball head 208 inside the ferrule housing 1, the compressed springs 203 inside the multiple outer shells 203 fixed inside the ferrule housing 1... 04. Release the elastic force. This elastic force is transmitted to the telescopic shaft 205 through the sliding ring 206, pushing the telescopic shaft 205 so that the ball head 208 at the end quickly pushes into the ball groove 202 opened on the surface of the fixing ring 201. At this time, the operator will feel a clear sense of engagement confirmation. The engagement of multiple ball heads 208 with the ball groove 202 completes the rapid axial positioning and initial locking of the two connector heads 4, preventing the connector heads 4 from accidentally slipping out before subsequent operations. The whole process is carried out under the guidance of the guide limit block 207, ensuring the smooth and accurate movement of the telescopic shaft 205 and the sliding ring 206. Thus, the rapid docking stage is completed.

[0040] After the initial docking of the two connector heads 4, in order to achieve a stable and sealed connection, the reinforcement and sealing stage begins. The operator holds and rotates the rotating blocks 301 located at both ends of the docking ferrule housing 1. Since the rotating blocks 301 and the fastening threaded ring 302 are an integral structure, rotating the rotating blocks 301 causes the fastening threaded ring 302 to rotate as well. The external thread of the fastening threaded ring 302 engages with the threaded groove 304 at the end of the docking ferrule housing 1, causing the fastening threaded ring 302 to axially screw into the docking ferrule housing 1 while rotating. During the screwing process, the conical inner wall of the fastening threaded ring 302 is subjected to radial compression from the docking ferrule housing 1. The pressure causes the tightening groove 303 on the fastening threaded ring 302 to be compressed, resulting in a shrinkage of the overall diameter of the fastening threaded ring 302. This shrinkage... Force is applied to the sealing ring 305 located on the inner wall of the fastening threaded ring 302. After being compressed, the sealing ring 305 undergoes elastic deformation, thereby generating a huge clamping force that firmly locks the outer wall of the connector head 4. This huge clamping force generated by the synergistic action of the conical surface and the thread greatly enhances the stability of the connection between the two connector heads 4, effectively resisting vibration and pull-out. At the same time, the fully compressed sealing ring 305 fills all the tiny gaps between the connector head 4 and the mating ferrule 1, providing excellent dustproof and waterproof sealing effects. When it is necessary to disconnect, the locking force of the fastening threaded ring 302 can be released by rotating the rotating block 301 in the opposite direction. Then, the two connector heads 4 can be pulled out of the mating ferrule 1 by force, so that the ball head 208 can be disengaged from the ball groove 202.

Claims

1. A coaxial connector ferrule for secure mating, comprising a hollow ferrule housing (1), a mating mechanism (2) disposed inside the ferrule housing (1), and a sealing mechanism (3); Its features are, The docking sleeve housing (1) has a housing (203) fixed inside. The housing (203) has a telescopic shaft (205) and a spring (204) movably arranged inside. One end of the telescopic shaft (205) is provided with a ball head (208). The spring (204) applies elastic force to the telescopic shaft (205) through a sliding ring (206) so that the ball head (208) can be inserted into the ball groove (202) on the matching connector head (4). The two ends of the docking sleeve housing (1) are provided with threaded grooves (304) formed by internal threads. It also includes a rotating block (301), a fastening threaded ring (302) connected to the rotating block (301), and a sealing ring (305). The fastening threaded ring (302) has a conical inner wall and a tightening groove (303). The sealing ring (305) is circumferentially disposed on the conical inner wall of the fastening threaded ring (302). The fastening threaded ring (302) is threadedly engaged with the threaded groove (304) and uses the conical inner wall to squeeze the sealing ring (305).

2. The coaxial connector securing sleeve according to claim 1, characterized in that, A guide limiting block (207) is also fixed on the inner wall of the docking sleeve shell (1). The guide limiting block (207) is used to guide the sliding of the sliding ring (206) and the telescopic shaft (205).

3. The coaxial connector secure mating sleeve according to claim 1, characterized in that, The number of the outer shells (203) is multiple, and they are evenly distributed circumferentially along the inner wall of the docking sleeve shell (1).

4. The coaxial connector secure mating sleeve according to claim 1, characterized in that, The tightening groove (303) is a plurality of slots opened along the axial direction of the fastening threaded ring (302).

5. A coaxial connector secure mating sleeve according to claim 1, characterized in that, The rotating block (301) and the fastening threaded ring (302) are integrally formed.

6. A coaxial connector secure mating sleeve according to claim 1, characterized in that, The outer surface of the rotating block (301) is provided with anti-slip texture.

7. A coaxial connector securing sleeve according to claim 1, characterized in that, The sliding ring (206) is sleeved on the outer periphery of the telescopic shaft (205) and located between the spring (204) and one end of the telescopic shaft (205).

8. A coaxial connector secure mating sleeve according to any one of claims 1-7, characterized in that, It also includes the connector head (4), and a fixing ring (201) is fixed on the outer wall of each connector head (4). The surface of the fixing ring (201) is provided with the ball groove (202) for the ball head (208) to be inserted.

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