Anti-drop coaxial connector

Abstract

The utility model provides a kind of anti-falling coaxial connector, belong to radio frequency coaxial connector technical field, including first connector and second connector, locking mechanism is equipped in the outer conductor of second connector, locking mechanism includes elastic member and locating block, elastic member is used to drive locating block and move along radial telescopic, the outer conductor surface of first connector is equipped with locating hole, when first connector and second connector are inserted to position, elastic member pushes locating block and is inserted into locating hole, the embedding of locating block and locating hole is to first connector axial limit lock is realized;The utility model can be after connector outer conductor insertion is in place, additional axial locking mechanism can be applied to it. To effectively resist axial external force, significantly improve the ability of anti accidental disengagement, to ensure that the long-term plug-in stability under harsh environment is connected.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency coaxial connector technology, and specifically to an anti-detachment coaxial connector. Background Technology

[0002] Radio frequency coaxial connectors are generally considered to be components that are attached to cables or installed on instruments. As components that electrically connect or disconnect transmission lines, the mating and disassembly of some existing coaxial connectors often use claw mating technology. By setting claws and slots at the outer conductor ports of the two connectors, the connection is achieved through elastic deformation, so as to realize quick installation and disassembly.

[0003] This plug-in / plug-out structure achieves mechanical locking through the circumferential engagement of the claws and the slots, enabling convenient assembly without tools and significantly improving equipment maintenance efficiency. However, existing claw connection technology has revealed a core problem of insufficient plug-in stability during long-term use;

[0004] During repeated insertion and removal, this structure causes high-frequency friction due to stress concentration in the contact area, resulting in significant wear on the connection parts. This leads to a reduction in the engagement depth and an increase in the mating clearance, ultimately causing a decrease in locking force. Consequently, when the connector is subjected to external forces such as axial tension, it is very easy for it to accidentally disengage, seriously affecting the long-term reliability and insertion / removal stability of the connection. Utility Model Content

[0005] In view of this, the present invention provides an anti-dislodgement coaxial connector that can apply an additional axial locking mechanism after the outer conductor of the connector is fully engaged. This effectively resists axial external forces, significantly improves the resistance to accidental disengagement, and thus ensures the long-term mating stability of the connection in harsh environments.

[0006] To solve the above-mentioned technical problems, this utility model provides an anti-dislodgement coaxial connector, including a first connector and a second connector. The outer conductor of the second connector is provided with a locking mechanism, which includes an elastic element and a positioning block. The elastic element is used to drive the positioning block to move radially. The outer conductor surface of the first connector has a positioning hole. By pressing the positioning block, the positioning block can be extended and retracted on the outer conductor surface under the action of the elastic element. When the first connector needs to be inserted, the positioning block is pressed first, and then the first connector and the second connector are inserted into each other. Then, the positioning hole and the positioning block are adjusted to the radially corresponding positions, so that the elastic force of the elastic element pushes the positioning block into the positioning hole. Through the engagement of the positioning block and the positioning hole, the first connector is axially limited and locked, thereby effectively resisting axial external force, significantly improving the ability to resist accidental dislodgement, and thus ensuring the long-term insertion and removal stability of the connection in harsh environments.

[0007] The locking mechanism includes multiple movable cavities evenly distributed along the circumference of the second connector. Each movable cavity contains a compression spring, with a movable block connected to the end of the spring. A positioning block is located on the side of the movable block away from the compression spring. The movable cavity has a radial opening, through which the positioning block passes and is inserted into a positioning hole. When mating is required, the positioning block is pressed into the movable cavity by the compression spring, compressing the spring. Then, the second connector port and the first connector port are mated and mated, so that the radial direction of the positioning block corresponds to the position of the positioning hole. At this time, the rebound force of the compression spring will push the positioning block outward, so that the positioning block is accurately inserted into the positioning hole. This allows the positioning block and the positioning hole to cooperate to limit and lock the axial direction of the second connector and the first connector, thereby preventing them from separating due to accidental external force. When disassembly is required, pressing the positioning block will disengage it from the positioning hole, thereby canceling the axial limitation and allowing the second connector and the first connector to be separated.

[0008] There are two movable cavities, which are symmetrically distributed around the circumference of the second connector, and the line connecting their centers is perpendicular to the axis of the second connector to form a balanced bidirectional limiting constraint. Each of the two movable cavities is equipped with two springs and two positioning blocks, and there are also two positioning holes, whose radial positions correspond to the positioning holes. This allows the two symmetrical positioning blocks to better limit the movement. The design of the two positioning blocks is also convenient for operators to use; the operation can be completed by pressing the two positioning blocks with their fingers.

[0009] The insertion end of the positioning block is provided with a wedge-shaped surface, and the orientation of the wedge-shaped surface is the same as that of the second connector port. Through the design of the wedge-shaped surface, when the first connector and the second connector are inserted relative to each other, the wall of the first connector port will contact the wedge-shaped surface. During the insertion process, the wedge-shaped surface can push the positioning block to move into the movable cavity. At this time, the positioning block drives the movable block to compress the compression spring. After the first connector and the second connector are inserted, the compression spring rebounds and pushes the positioning block into the positioning hole to achieve limit locking. The operation is convenient. During insertion, the operator does not need to press the positioning block. Only the two positioning blocks need to be pressed when disassembling, reducing the operation steps and improving the convenience of insertion.

[0010] The radial opening edge of the movable cavity is provided with a limiting protrusion, so that the cross-sectional area of ​​the opening of the movable cavity is smaller than the cross-sectional area of ​​the movable block, thereby limiting the maximum radial displacement distance of the movable block, so that the movable block will not detach from the opening, and thus prevent the positioning block from completely detaching from the movable cavity.

[0011] The inner wall of the first connector is provided with a guide groove, and the corresponding position on the outer surface of the second connector is provided with a guide strip. When the first connector and the second connector are mated, the guide strip can slide along the guide groove, thereby restricting the axial rotation of the first connector and the second connector, and ensuring that the positioning block can be accurately and smoothly inserted into the positioning hole after mating.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. When using this utility model, an additional axial locking mechanism can be applied to the connector after the outer conductor is fully inserted. This effectively resists axial external forces, significantly improves the resistance to accidental disengagement, and thus ensures the long-term insertion and removal stability of the connection in harsh environments.

[0014] 2. When using this utility model, the wedge-shaped self-driving design enables operation without pressing, shortens the single insertion time, and improves insertion efficiency.

[0015] 3. When using this utility model, the symmetrical layout of the two movable cavities ensures mechanical stability while allowing for pressing and disassembly with one hand, further improving the ease of operation.

[0016] 4. When using this utility model, the cooperative design of the guide strip and guide groove can improve the connector mating accuracy, so that the positioning block can be inserted into the positioning hole more smoothly and accurately. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first connector and the second connector after separation according to this utility model;

[0019] Figure 3 This is a side view of the main structure of this utility model;

[0020] Figure 4 Nakamoto Utility Model Figure 3 Front sectional view of the structure at point AA;

[0021] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100, First connector; 101, Positioning hole; 102, Guide groove; 200, Second connector; 201, Guide bar; 300, Movable cavity; 301, Compression spring; 400, Movable block; 401, Positioning block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] A type of anti-detachment coaxial connector, such as Figure 1 , Figure 4 and Figure 5 As shown: It includes a first connector 100 and a second connector 200. The outer conductor of the second connector 200 is provided with a locking mechanism, which includes an elastic element and a positioning block 401.

[0026] The elastic element is used to drive the positioning block 401 to move radially. The outer conductor surface of the first connector 100 is provided with a positioning hole 101. By pressing the positioning block 401, the positioning block 401 can be extended and retracted on the outer conductor surface under the action of the elastic element.

[0027] When the first connector 100 needs to be inserted, first press the positioning block 401, then insert the first connector 100 and the second connector 200 into each other, and then adjust the positioning hole 101 and the positioning block 401 to the radially corresponding positions, so that the elastic force of the elastic element pushes the positioning block 401 into the positioning hole 101. Through the engagement of the positioning block 401 and the positioning hole 101, the first connector 100 is axially limited and locked, thereby effectively resisting axial external force, significantly improving the ability to resist accidental disengagement, and thus ensuring the long-term insertion and removal stability of the connection in harsh environments.

[0028] Specifically, such as Figure 3 , Figure 4 and Figure 5 As shown, the locking mechanism includes multiple movable cavities 300, which are evenly distributed along the circumference of the second connector 200; each movable cavity 300 is provided with a compression spring 301, and the end of the compression spring 301 is connected to a movable block 400. The movable block 400 is provided with a positioning block 401 on the side away from the compression spring 301. The movable cavity 300 has an opening in the radial direction, and the positioning block 401 passes through the opening and is inserted into the positioning hole 101.

[0029] When mating is required, the positioning block 401 is pressed into the movable cavity 300 by the design of the compression spring 301, compressing the compression spring 301. Then, the port of the second connector 200 is mated with the port of the first connector 100, so that the radial direction of the positioning block 401 corresponds to the position of the positioning hole 101. At this time, the rebound force of the compression spring 301 will push the positioning block 401 outward, so that the positioning block 401 is accurately inserted into the positioning hole 101. Thus, the positioning block 401 and the positioning hole 101 cooperate to limit and lock the axial direction of the second connector 200 and the first connector 100, thereby preventing them from separating due to accidental external force. When disassembly is required, the positioning block 401 is pressed to disengage from the positioning hole 101, thereby canceling the axial limitation, so that the second connector 200 and the first connector 100 can be separated.

[0030] Furthermore, such as Figure 3 and Figure 4 As shown, there are two movable cavities 300, which are symmetrically distributed around the second connector 200. The center line connecting the two cavities is perpendicular to the axis of the second connector 200 to form a balanced bidirectional limiting constraint. Two springs and two positioning blocks 401 are respectively provided in the two movable cavities 300. There are also two positioning holes 101, whose radial positions correspond to the positioning holes 101. This allows the two symmetrical positioning blocks 401 to better limit the movement. The design of the two positioning blocks 401 is convenient for operators to operate. The operation can be completed by pressing the two positioning blocks 401 with their fingers.

[0031] according to Figure 2 , Figure 4 and Figure 5 As shown, the insertion end of the positioning block 401 is provided with a wedge-shaped surface, and the orientation of the wedge-shaped surface is consistent with the orientation of the port of the second connector 200. Through the design of the wedge-shaped surface, when the first connector 100 and the second connector 200 are inserted relative to each other, the wall of the port of the first connector 100 will contact the wedge-shaped surface, and during the insertion process, the positioning block 401 can be pushed into the interior of the movable cavity 300 through the wedge-shaped surface. At this time, the positioning block 401 drives the movable block 400 to compress the compression spring 301. After the first connector 100 and the second connector 200 are inserted, the compression spring 301 rebounds and pushes the positioning block 401 into the positioning hole 101 to achieve limit locking. The operation is convenient. During insertion, the operator does not need to press the positioning block 401. Only the two positioning blocks 401 need to be pressed when disassembling, reducing the operation steps and improving the convenience of insertion.

[0032] Specifically, such as Figure 5As shown, the radial opening edge of the movable cavity 300 is provided with a limiting protrusion, so that the cross-sectional area at the opening of the movable cavity 300 is smaller than the cross-sectional area of ​​the movable block 400, thereby limiting the maximum radial displacement distance of the movable block 400, so that the movable block 400 will not detach from the opening, thereby preventing the positioning block 401 from completely detaching from the movable cavity 300.

[0033] Furthermore, such as Figure 2 As shown, the inner sidewall of the first connector 100 is provided with a guide groove 102, and the corresponding position on the outer surface of the second connector 200 is provided with a guide strip 201. When the first connector 100 and the second connector 200 are mated, the guide strip 201 can slide along the guide groove 102, thereby restricting the axial rotation of the first connector 100 and the second connector 200, and ensuring that the positioning block 401 can be accurately and smoothly inserted into the positioning hole 101 after mating.

[0034] It should be clarified that this utility model relates to the mating of radio frequency coaxial connectors, mainly used to lock the mated connectors. It should be noted that the first connector and the second connector are existing devices in the prior art. Since they are not the main technical features of this utility model, their models are not limited here, nor is their structure described in detail. Only the usage method and installation position of the locking mechanism are described in detail.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A coaxial connector designed to prevent detachment, comprising a first connector (100) and a second connector (200), characterized in that: The second connector (200) has a locking mechanism inside its outer conductor. The locking mechanism includes an elastic element and a positioning block (401). The elastic element is used to drive the positioning block (401) to move radially. The outer conductor surface of the first connector (100) is provided with a positioning hole (101). When the first connector (100) and the second connector (200) are inserted into each other, the elastic element pushes the positioning block (401) into the positioning hole (101). Through the engagement of the positioning block (401) and the positioning hole (101), the first connector (100) is axially limited and locked.

2. The anti-detachment coaxial connector as described in claim 1, characterized in that: The locking mechanism includes a plurality of movable cavities (300) which are evenly distributed along the circumference of the second connector (200); Each of the movable cavities (300) is provided with a compression spring (301), the end of the compression spring (301) is connected to a movable block (400), and a positioning block (401) is provided on the side of the movable block (400) away from the compression spring (301); The movable cavity (300) has an opening in the radial direction, and the positioning block (401) passes through the opening and is inserted into the positioning hole (101).

3. The anti-detachment coaxial connector as described in claim 2, characterized in that: The number of the movable cavities (300) is two, and the two movable cavities (300) are symmetrically distributed around the second connector (200) in the circumference, and the center line connecting the two is perpendicular to the axis of the second connector (200) to form a balanced bidirectional limiting constraint.

4. The anti-detachment coaxial connector as described in claim 2, characterized in that: The insertion end of the positioning block (401) is provided with a wedge-shaped surface, and the orientation of the wedge-shaped surface is consistent with the orientation of the port of the second connector (200).

5. The anti-detachment coaxial connector as described in claim 2, characterized in that: The radial opening edge of the movable cavity (300) is provided with a limiting protrusion, which is used to limit the maximum radial displacement of the movable block (400) and prevent the positioning block (401) from completely disengaging from the movable cavity (300).

6. The anti-detachment coaxial connector as described in claim 1, characterized in that: The inner wall of the first connector (100) is provided with a guide groove (102), and the corresponding position of the outer surface of the second connector (200) is provided with a guide strip (201); When the first connector (100) is mated with the second connector (200), the guide bar (201) can slide along the guide groove (102) to prevent axial rotation during mating and ensure that the positioning block (401) is smoothly inserted into the positioning hole (101).

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