Anti-loose and anti-vibration free end electrical connector

Abstract

The utility model relates to the technical field of electric connector, specifically is a kind of anti-loosening strong-vibration free end electric connector, including fixed socket, and movable plug is inserted on fixed socket, movable plug is fixedly connected with baffle cover, baffle cover is rotatably connected with sleeve, two limit shafts are fixedly connected on sleeve, connecting sleeve is fixedly connected on fixed socket, two abutting parts are equipped on connecting sleeve, annular groove is equipped on connecting sleeve, two limit shafts are located inside annular groove, spring is sleeved on the outside of baffle cover, and one end of spring is abutted with moving ring, moving ring is slidably connected to baffle cover, a plurality of abutting blocks are integrally formed on moving ring, and one end of baffle cover is clamped with sealing gasket;After movable plug is inserted on fixed socket, it can be quickly fixed, and the firmness of fixed is better, simultaneously, after being fixed, it can be sealed to connecting portion, to avoid water and oil stain to enter the inside of connector and cause damage to connector, to improve the security of use.

Description

Technical Field

[0001] This utility model relates to an electrical connector, specifically an anti-loosening and anti-strong vibration free-end electrical connector, belonging to the field of electrical connector technology. Background Technology

[0002] As a core component of circuit connections, electrical connectors are crucial for the stable mating of their movable plugs and fixed sockets, which directly affects the normal operation of equipment. In fields such as industrial equipment, rail transportation, and mining machinery, electrical connectors are frequently subjected to external forces such as vibration and impact, and often face complex environments that are humid and dusty. Therefore, they have extremely high requirements for the robustness and sealing of the connection.

[0003] Currently, most electrical connectors use a threaded sleeve to secure the movable plug and fixed socket: the two are tightly connected by rotating the threaded sleeve. However, this method has significant drawbacks: firstly, the process requires repeated twisting of the threaded sleeve, which is cumbersome and significantly reduces work efficiency in scenarios requiring frequent plugging and unplugging; secondly, in environments with continuous vibration, the threaded sleeve is prone to loosening due to vibration, causing the connection between the movable plug and fixed socket to gradually loosen, which can easily lead to poor contact and signal interruption.

[0004] Meanwhile, traditional electrical connectors have relatively weak sealing performance, and gaps easily appear at the joint after the movable plug is connected to the fixed socket. When exposed to rain or oil, these impurities can easily enter the connector through the gaps, corroding the metal contacts and contaminating the insulating components. This can easily lead to damage to the electrical connector, shorten its service life, and increase equipment maintenance costs and failure rate. Utility Model Content

[0005] The purpose of this utility model is to provide a non-loosening and vibration-resistant free-end electrical connector to solve the above problems. When the movable plug is inserted into the fixed socket, it can be quickly and firmly fixed. At the same time, after fixing, it can seal the connection, thereby preventing water and oil from entering the connector and damaging it, thus improving the safety of use.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a free-end electrical connector with anti-loosening and strong vibration resistance, comprising a fixed socket, a movable plug inserted into the fixed socket, a cover fixedly connected to the movable plug, a fixing structure provided on the cover, the fixing structure including a rotating sleeve and a lever, a rotating sleeve rotatably connected to the cover, two limiting shafts fixedly connected to the inner side of the rotating sleeve, a connecting sleeve fixedly connected to the fixed socket, two abutting parts provided on the connecting sleeve, two openings provided on the connecting sleeve, an annular groove provided on the connecting sleeve, the two limiting shafts located inside the annular groove, a spring sleeved on the outer side of the cover, one end of the spring abutting a movable ring, the movable ring slidably connected to the cover, multiple abutting blocks integrally formed on the movable ring, the multiple abutting blocks slidably connected to the rotating sleeve, a sealing gasket engaged at one end of the cover, the sealing gasket abutting against the fixed socket.

[0007] Preferably, a lever is fixedly connected to one side of the rotating sleeve, a guide block is fixedly connected to the cover, and the guide block is slidably connected to the moving ring.

[0008] Preferably, the two openings are arranged in a circular array about the middle of the connecting sleeve, and the two limiting shafts are arranged in a circular array about the middle of the rotating sleeve.

[0009] Preferably, the baffle has two limiting grooves, and the limiting shaft passes through the adjacent limiting grooves.

[0010] Preferably, the plurality of abutments are arranged in a circular array about the center of the moving ring, the cross-section of the abutments as a whole is trapezoidal, and the center of the moving ring and the center of the shield are on the same straight line.

[0011] Preferably, two sealing rings are provided on both sides of the limiting shaft, the inner side of the sealing ring abuts against the cover, and the outer side of the sealing ring engages with the rotating sleeve.

[0012] Preferably, the movable plug is fixedly connected with multiple positioning strips, and the fixed socket is provided with multiple positioning slots that correspond one-to-one with the positioning strips, and the positioning strips engage with adjacent positioning slots.

[0013] Preferably, there are five positioning strips, which are arranged in a circular array about the center of the movable plug, wherein two of the positioning strips are different in size from the other three.

[0014] Preferably, the fixed socket has four mounting holes, and a rubber pad is provided on one side of the fixed socket.

[0015] The beneficial effects of this utility model are as follows: When the movable plug needs to be inserted into the fixed socket, it can be moved towards the fixed socket by holding the movable plug. During the insertion process, the abutment part on the connecting sleeve will abut against the limiting shaft. Since the contact part between the abutment part and the limiting shaft is inclined, the abutment part will abut against the limiting shaft as the movable plug moves. The simultaneous movement of the two limiting shafts will drive the rotating sleeve to move. When the rotating sleeve moves, it will abut against the abutment block. The simultaneous movement of multiple abutment blocks will drive the moving ring to slide on the cover. The movement of the moving ring will compress the spring. As the movable plug continues to move, the sealing gasket at one end of the cover will abut against the fixed socket. At this time, the limiting shaft will disengage from the abutment part and move into the inside of the ring groove. Then the spring will extend and drive the moving ring to reverse. The moving ring drives multiple abutments to move. Because the abutments have a trapezoidal cross-section, they will resist the rotating sleeve and reset in the reverse direction under the action of wedge force during the movement. After the rotating sleeve resets in the reverse direction, the two limiting shafts will deviate from one side of the opening. Therefore, the movable plug cannot be detached from the fixed socket after being released, thus achieving quick fixation of the movable plug. Because the limiting shaft is always located inside the ring groove under the action of the spring, the movable plug is prevented from loosening due to vibration, thereby improving the stability of the fixation. In addition, the sealing gasket at the end of the cover can form a seal between the sealing gasket and the fixed socket, thus preventing water and oil from entering the connector and damaging it, thereby improving the safety of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 3 This is a schematic diagram of the connection structure between the fixed socket and the positioning groove of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the movable plug and the positioning strip of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the rotating sleeve and the sealing ring of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure between the baffle and the guide block of this utility model.

[0022] In the diagram: 1. Fixed socket; 2. Movable plug; 3. Fixed structure; 301. Rotating sleeve; 302. Toggle block; 303. Limiting shaft; 304. Connecting sleeve; 305. Contact part; 306. Opening; 307. Annular groove; 308. Abutment block; 309. Moving ring; 310. Spring; 311. Limiting groove; 312. Guide block; 4. Cover; 5. Sealing ring; 6. Sealing gasket; 7. Positioning strip; 8. Positioning groove; 9. Rubber gasket; 10. Mounting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 As shown, a non-loosening and vibration-resistant free-end electrical connector includes a fixed socket 1, a movable plug 2 inserted into the fixed socket 1, a retaining cover 4 fixedly connected to the movable plug 2, a fixing structure 3 provided on the retaining cover 4, the fixing structure 3 including a rotating sleeve 301 and a lever 302, the rotating sleeve 301 being rotatably connected to the retaining cover 4, two limiting shafts 303 fixedly connected to the inner side of the rotating sleeve 301, a connecting sleeve 304 fixedly connected to the fixed socket 1, the connecting sleeve 304 being provided with two abutment portions 305, the connecting sleeve 304... The 04 has two openings 306, the connecting sleeve 304 has an annular groove 307, the two limiting shafts 303 are located inside the annular groove 307, the outer side of the cover 4 is fitted with a spring 310, one end of the spring 310 abuts against a moving ring 309, the moving ring 309 is slidably connected to the cover 4, the moving ring 309 has multiple abutments 308 integrally formed on it, the multiple abutments 308 are slidably connected to the rotating sleeve 301, one end of the cover 4 is fitted with a sealing gasket 6, the sealing gasket 6 abuts against the fixed socket 1.

[0025] As a technical optimization of this utility model, a lever 302 is fixedly connected to one side of the rotating sleeve 301. Therefore, when disassembling the movable plug 2, the rotating sleeve 301 can be easily rotated by holding the lever 302. When the limiting shaft 303 moves to the opening 306 with the rotating sleeve 301, the movable plug 2 can be pulled out from the fixed socket 1. Thus, a guide block 312 is fixedly connected to the cover 4. The guide block 312 is slidably connected to the moving ring 309, so as to prevent the moving ring 309 from rotating with the rotating sleeve 301.

[0026] As a technical optimization of this utility model, the two openings 306 are arranged in a circular array about the middle of the connecting sleeve 304, and the two limiting shafts 303 are arranged in a circular array about the middle of the rotating sleeve 301. By setting two limiting shafts 303, the stability of the fixation can be improved.

[0027] As a technical optimization of this utility model, the cover 4 has two limiting grooves 311. The limiting grooves 311 can limit the movement range of the limiting shaft 303. When rotating the rotating sleeve 301, when the limiting shaft 303 is located at one end of the limiting groove 311, the rotating sleeve 301 cannot continue to rotate. At this time, the limiting shaft 303 is just located on one side of the opening 306, and then the movable plug 2 can be pulled out from the fixed socket 1. The limiting shaft 303 passes through the adjacent limiting groove 311.

[0028] As a technical optimization of this utility model, the plurality of abutment blocks 308 are arranged in a circular array about the center of the moving ring 309. The cross-section of the abutment block 308 is trapezoidal, so that it can abut against the movement of the plurality of abutment blocks 308 when the rotating sleeve 301 rotates. The center of the moving ring 309 and the center of the baffle 4 are on the same straight line.

[0029] As a technical optimization of this utility model, two sealing rings 5 ​​are provided on both sides of the limiting shaft 303. The inner side of the sealing ring 5 abuts against the cover 4, and the outer side of the sealing ring 5 engages with the rotating sleeve 301. Therefore, the sealing performance between the rotating sleeve 301 and the cover 4 can be improved by the sealing rings 5, thereby preventing water from entering the interior of the connector from between the rotating sleeve 301 and the cover 4.

[0030] As a technical optimization of this utility model, the movable plug 2 is fixedly connected with a plurality of positioning strips 7, and the fixed socket 1 is provided with a plurality of positioning grooves 8 corresponding one-to-one with the positioning strips 7. The positioning strips 7 engage with the adjacent positioning grooves 8, so that the movable plug 2 can be positioned when it is plugged in.

[0031] As a technical optimization of this utility model, five positioning strips 7 are provided, which can improve the stability of positioning. The five positioning strips 7 are arranged in a circular array about the center of the movable plug 2. The size of two of the positioning strips 7 is different from that of the other three positioning strips 7, so that the movable plug 2 can only be inserted into the interior of the fixed socket 1 along a specific orientation.

[0032] As a technical optimization of this utility model, the fixed socket 1 is provided with four mounting holes 10, so the fixed socket 1 can be installed and fixed by bolts through the four mounting holes 10. A rubber pad 9 is provided on one side of the fixed socket 1, so the fixed socket 1 can play a shock-absorbing and protective role after installation.

[0033] In use, this utility model allows for the installation of the fixed socket 1 via four mounting holes 10 and bolts. After installation, a rubber pad 9 is placed between the fixed socket 1 and the device. The rubber pad 9 possesses excellent elasticity and toughness; when the electrical connector is subjected to vibration, it absorbs and buffers the vibration energy through its deformation, reducing the direct impact of vibration on the connection between the movable plug 2 and the fixed socket 1. During use, when the movable plug 2 needs to be inserted into the fixed socket 1, it can be moved towards the fixed socket 1 by hand. Multiple positioning strips... 7 will simultaneously move into the interior of multiple positioning slots 8, thereby achieving positioning during the insertion process. During the movement of the movable plug 2, the abutment part 305 on the connecting sleeve 304 will abut against the limiting shaft 303. Since the contact portion between the abutment part 305 and the limiting shaft 303 is inclined, the abutment part 305 will move against the limiting shaft 303 as the movable plug 2 moves. The simultaneous movement of the two limiting shafts 303 will drive the rotating sleeve 301 to move. When the rotating sleeve 301 moves, it will abut against the abutment block 308. The simultaneous movement of multiple abutment blocks 308 will drive the moving ring 309 to slide on the cover 4. The moving ring 309 compresses the spring 310. As the movable plug 2 continues to move, the sealing gasket 6 at one end of the cover 4 will come into contact with the fixed socket 1. At this time, the limiting shaft 303 will disengage from the contact part 305 and move into the inside of the ring groove 307. Then, the spring 310 will extend and drive the moving ring 309 to move in the opposite direction. The moving ring 309 drives multiple abutments 308 to move. Since the cross-section of the abutment 308 is trapezoidal, the multiple abutments 308 will abut against the rotating sleeve 301 and reset in the opposite direction under the action of the wedge force during the movement. After the rotating sleeve 301 resets in the opposite direction, the two limiting shafts 303 It will deviate from one side of the opening 306, so after the movable plug 2 is released, it cannot be detached from the fixed socket 1, thus achieving quick fixation of the movable plug 2. Since the limiting shaft 303 can always be located inside the annular groove 307 under the action of the spring 310, it can prevent the movable plug 2 from loosening due to vibration, thereby improving the stability of fixation. Moreover, the sealing gasket 6 at the end of the cover 4 can form a seal on the connection part after it abuts against the fixed socket 1, thus preventing water and oil from entering the inside of the connector and damaging the connector, thereby improving the safety of use.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A non-loosening and vibration-resistant free-end electrical connector, comprising a fixed socket (1), characterized in that: A movable plug (2) is inserted into the fixed socket (1). A cover (4) is fixedly connected to the movable plug (2). A fixing structure (3) is provided on the cover (4). The fixing structure (3) includes a rotating sleeve (301) and a lever (302). The rotating sleeve (301) is rotatably connected to the cover (4). Two limiting shafts (303) are fixedly connected to the inner side of the rotating sleeve (301). A connecting sleeve (304) is fixedly connected to the fixed socket (1). The connecting sleeve (304) is provided with two abutting parts (305) and two openings (306). The connecting sleeve (304) is provided with an annular groove (307), and the two limiting shafts (303) are located inside the annular groove (307). A spring (310) is sleeved on the outside of the cover (4). One end of the spring (310) abuts against a movable ring (309). The movable ring (309) is slidably connected to the cover (4). Multiple abutments (308) are integrally formed on the movable ring (309). The multiple abutments (308) are slidably connected to the rotating sleeve (301). One end of the cover (4) is fitted with a sealing gasket (6), and the sealing gasket (6) abuts against the fixed socket (1).

2. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: A lever (302) is fixedly connected to one side of the rotating sleeve (301), and a guide block (312) is fixedly connected to the cover (4). The guide block (312) is slidably connected to the moving ring (309).

3. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The two openings (306) are arranged in a circular array about the middle of the connecting sleeve (304), and the two limiting shafts (303) are arranged in a circular array about the middle of the rotating sleeve (301).

4. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The baffle (4) has two limiting grooves (311), and the limiting shaft (303) passes through the adjacent limiting grooves (311).

5. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The multiple blocks (308) are arranged in a circular array about the center of the moving ring (309). The cross-section of the blocks (308) is trapezoidal. The center of the moving ring (309) and the center of the shield (4) are on the same straight line.

6. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The limiting shaft (303) has two sealing rings (5) on both sides. The inner side of the sealing ring (5) abuts against the cover (4), and the outer side of the sealing ring (5) engages with the rotating sleeve (301).

7. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The movable plug (2) is fixedly connected with multiple positioning strips (7), and the fixed socket (1) is provided with multiple positioning slots (8) corresponding one-to-one with the positioning strips (7). The positioning strips (7) engage with the adjacent positioning slots (8).

8. The anti-loosening and anti-vibration free-end electrical connector according to claim 7, characterized in that: There are five positioning strips (7), which are arranged in a circular array about the center of the movable plug (2). Two of the positioning strips (7) are different in size from the other three positioning strips (7).

9. The anti-loosening and anti-vibration free-end electrical connector according to claim 1, characterized in that: The fixed socket (1) has four mounting holes (10) and a rubber pad (9) is provided on one side of the fixed socket (1).

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