Cable connector with self-locking function

Abstract

The invention provides a cable connector with a self-locking function, which is applied to the field of cable connectors, and comprises a connecting female head and a connecting male head, a cohesion assembly is arranged in the connecting female head, the cohesion assembly is composed of two groups of semi-ring pipes, an execution semi-ring block is fixed at one end of each semi-ring pipe, a semi-circular battery core sleeve and an anti-drop convex block are arranged in each semi-ring pipe, and the semi-circular battery core sleeves and the anti-drop convex blocks are arranged in the semi-ring pipes. A battery core column and an anti-falling groove are arranged in the connecting male head; and a self-locking pipe and a tensioning disc are arranged in the connecting male head. Compression and release of the tension spring are matched with guiding of the guide groove, cohesion self-locking of the anti-disengaging protruding block is achieved, the mechanical meshing mode of the anti-disengaging protruding block and the anti-disengaging groove is adopted, the cohesion force of the semi-ring pipe is combined, large axial pulling-out force can be borne, compared with a traditional buckle type connector, vibration disengaging can be effectively prevented, and the service life of the connector is prolonged. And meanwhile, a cohesion butt joint mode is adopted, so that the friction force between the semicircular battery core sleeves and the battery core columns can be effectively reduced, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of cable connectors, and in particular to a cable connector with a self-locking function. Background Technology

[0002] Cable connectors are components used to achieve electrical connections between cables and equipment, and between cables themselves. Their main functions include transmitting power, signals, or data, while also providing protection such as mechanical fastening, waterproofing, dustproofing, and vibration resistance.

[0003] In modern electrical systems, the reliability of cable connectors directly affects the safe operation of equipment. Traditional connectors generally use spring clips or threaded locking, which are prone to loosening under vibration, leading to poor contact. Furthermore, the connection method is not convenient to operate. At the same time, the terminals of existing connectors mostly use a hard friction plug-in method, which will lead to poor contact due to excessive wear after repeated use.

[0004] Therefore, a cable connector with a self-locking function is proposed. Summary of the Invention

[0005] The purpose of this application is to solve the technical problems of poor stability and low operating efficiency of traditional connectors. Compared with the prior art, it provides a cable connector with a self-locking function, including a female connector and a male connector. The female connector has a plurality of clamping components arranged at equal angles. The clamping components are composed of two sets of symmetrically slidingly connected semi-ring tubes. An actuating semi-ring block is fixed at one end of the semi-ring tube. A semi-circular battery sleeve is fixed inside the semi-ring tube. An anti-detachment protrusion is provided inside the semi-circular battery sleeve. The male connector has a battery post corresponding to the clamping components. The battery post has an anti-detachment groove that cooperates with the anti-detachment protrusion. An elastic diaphragm is fixed to the side of each of the two sets of semi-circular tubes that are far apart. The elastic diaphragm has an elastic force that drives the two sets of semi-circular tubes to move away from each other. A sealing diaphragm is also glued to the opposite side of the two sets of semi-circular tubes. The male connector is equipped with a self-locking tube, which is used to press the two sets of actuating semi-ring blocks close together and to make the two sets of semi-ring tubes synchronously close when the female connector and the male connector are engaged. The male connector is also equipped with a tensioning disc, which is used to provide circumferential support force for the self-locking tube.

[0006] Furthermore, the connecting female head includes a docking base, the docking base is provided with a straight groove corresponding to the clamping component, and the end of the elastic diaphragm away from the semi-ring tube is fixed to the inner wall of the straight groove; The straight groove is also provided with symmetrically arranged guide rails, and the two sides of the semi-circular tube are symmetrically provided with sliding grooves that match the guide rails.

[0007] Furthermore, a sealing baffle is fixed between the semi-ring tube and the execution semi-ring block, and an end cover plate is detachably fixed at the end of the docking base. The end cover plate is provided with sealing groove 2 and sealing groove 1 on the side opposite to the straight groove, respectively, which correspond to the sealing baffle. Sealing ring 2 and sealing ring 1 are fixed on the side opposite to sealing groove 1, and the two sides of the sealing baffle abut against sealing ring 2 and sealing ring 1, respectively. The end of the execution semi-ring block away from the semi-ring tube passes through the sealing groove and extends to the side of the end cover plate away from the docking base.

[0008] Furthermore, each of the two sets of semi-ring tubes is provided with a diamond-shaped movable lever arm and a terminal block at the end away from the actuating semi-ring block. A return spring is fixed between the diamond-shaped movable lever arms, and the return spring has an elastic force that drives the two sets of semi-ring tubes away from each other.

[0009] Furthermore, the female connector is provided with an outer ring slot, the male connector is provided with a mating outer tube that matches the outer ring slot, the inner side of the mating outer tube is provided with a foolproof groove, the outer ring slot is provided with a foolproof strip that matches the foolproof groove, and a waterproof sealing gasket is fixed in the outer ring slot.

[0010] Furthermore, the connecting female head is also provided with an inner ring slot between the outer ring slot and the mating base, and the inner ring slot cooperates with the self-locking tube; The self-locking tube is fixed to one side of the tensioning disc, the tensioning disc is rotatably connected to the connecting male, and several tensioning springs are fixed between the tensioning disc and the connecting male. The outer wall of the self-locking tube is provided with several guide grooves arranged at equal angles, and the port side of the inner ring slot is provided with balls that cooperate with the guide grooves. The tensioning disc also has an actuation groove on the inside of the self-locking tube.

[0011] Furthermore, the guide groove includes a spiral groove one and a spiral groove two connected to the spiral groove one, and the side of the spiral groove two away from the spiral groove one is connected to an arc-shaped groove. The execution groove includes a petal-shaped outer groove wall and a petal-shaped inner groove wall. The maximum distance between the petal-shaped outer groove wall and the petal-shaped inner groove wall is equal to the maximum distance when the execution half-ring blocks are far apart. The minimum distance between the petal-shaped outer groove wall and the petal-shaped inner groove wall is equal to the maximum distance when the execution half-ring blocks are in contact with each other. Both the outer and inner petal-shaped grooves have arc-shaped grooves at their curved nodes, and the arc-shaped grooves have the same outer radius as the execution semi-ring block.

[0012] Furthermore, the tensioning disc is provided with four sets of equally spaced arc-shaped through slots, and one end of the battery cell column extends through the arc-shaped through slots and is electrically connected to an external cable. The tensioning disc has four sets of connecting rods evenly distributed at equal angles on the side away from the self-locking tube. The male connector has an arc-shaped through groove that matches the connecting rod. One end of the connecting rod passes through the arc-shaped through groove and extends to one side of the outer wall of the male connector, where a reset wrist ring is fixed.

[0013] Furthermore, in the free state, the port of the first spiral groove is positioned opposite to the ball, and the distance between the two ends of the first spiral groove in the axial direction of the self-locking tube is equal to the distance between the end face of the self-locking tube and the end face of the actuating groove in the axial direction. The distance between the two ends of the spiral groove and the arc groove in the direction of the self-locking tube axis is equal to the groove depth of the actuating groove; The arc length of the projection surface of the two ends of the spiral groove one in the direction perpendicular to the axis of the self-locking tube is equal to the total arc length of the projection surface of the spiral groove two and the arc groove in the direction perpendicular to the axis of the self-locking tube. The axis of the arc-shaped groove is coaxial with the axis of the self-locking tube.

[0014] Furthermore, when the ball moves from the port of the first spiral groove to the connection node between the first spiral groove and the second spiral groove, the tension spring changes from a free state to a state of maximum compression; when the ball and the second spiral groove move into the arc groove, the tension spring changes from a compressed state to a released state.

[0015] Compared to existing technologies, the advantages of this application are: After the female and male connectors of this application are mated, the compression and release of the tension spring, combined with the guidance of the guide groove, enables the anti-detachment protrusions to engage and lock themselves. The mechanical engagement of the anti-detachment protrusions and anti-detachment grooves, combined with the clamping force of the semi-ring tube, can withstand a large axial pull-out force. Compared with traditional snap-fit ​​connectors, it can effectively prevent vibration-induced detachment. At the same time, since this application adopts a semi-circular cell sleeve engaging with the cell post, compared with the traditional hard plug connection, it can effectively reduce the friction between the semi-circular cell sleeve and the cell post, effectively avoiding poor contact caused by excessive friction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the port surface structure of the female connector and the male connector proposed in this application; Figure 3 This is an exploded structural diagram of the female connector proposed in this application; Figure 4 This is an exploded structural diagram of the cohesive component proposed in this application; Figure 5 This is a schematic diagram of the rhomboid movable lever arm proposed in this application; Figure 6This is a schematic diagram of the end cap plate proposed in this application; Figure 7 This is a schematic diagram of the docking base proposed in this application; Figure 8 This is an exploded structural diagram of the male connector proposed in this application; Figure 9 This is a schematic diagram of the structure of the execution slot proposed in this application; Figure 10 This is a schematic diagram of the structure of the self-locking tube and tensioning disc proposed in this application; Figure 11 This is a schematic diagram of the bottom structure of the self-locking tube and tensioning disc proposed in this application; Figure 12 This is a cross-sectional structural diagram of the female connector and male connector as proposed in this application when they are not aligned. Figure 13 This is a cross-sectional structural diagram of the female connector and male connector as proposed in this application when they are mated.

[0017] Explanation of the labels in the diagram: 1. Connecting female head; 11. Outer ring slot; 111. Anti-fooling strip; 12. Inner ring slot; 121. Ball bearing; 13. Connecting base; 14. Straight groove; 15. Waterproof sealing gasket; 141. Sealing groove one; 142. Sealing ring one; 143. Guide rail; 2. Connecting male connector; 21. Connecting outer tube; 211. Anti-fooling groove; 22. Battery cell post; 221. Anti-detachment groove; 23. Arc-shaped through groove one; 3. End cover plate; 31. Sealing groove two; 32. Sealing ring two; 4. Clamping assembly; 401. Sealing diaphragm; 402. Diamond-shaped movable lever arm; 403. Return spring; 41. Semi-ring tube; 411. Slide groove; 412. Terminal block; 42. Elastic diaphragm; 43. Sealing baffle; 44. Actuating semi-ring block; 45. Semi-circular battery cell sleeve; 451. Anti-detachment protrusion; 6. Self-locking tube; 61. Guide groove; 611. Spiral groove one; 612. Spiral groove two; 613. Arc groove; 7. Tensioning disc; 701. Arc-shaped groove; 71. Execution groove; 711. Lobe-shaped outer groove wall; 712. Lobe-shaped inner groove wall; 72. Arc-shaped through groove II; 73. Connecting rod; 74. Reset wrist ring; 8. Tension spring. Detailed Implementation

[0018] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0019] Example: This invention provides a cable connector with a self-locking function; please refer to [link / reference]. Figures 1-13 The connector includes a female connector 1 and a male connector 2. The female connector 1 is provided with several clamping components 4 evenly distributed at equal angles. The clamping components 4 are composed of two sets of symmetrically slidingly connected semi-ring tubes 41. One end of the semi-ring tube 41 is fixed with an actuating semi-ring block 44. A semi-circular battery sleeve 45 is fixed inside the semi-ring tube 41. The semi-circular battery sleeve 45 is provided with an anti-detachment protrusion 451. The male connector 2 is provided with a battery post 22 corresponding to the clamping components 4. The battery post 22 is provided with an anti-detachment groove 221 that cooperates with the anti-detachment protrusion 451. The anti-detachment protrusion 451 and the anti-detachment groove 221 form a mechanical locking structure. Please see Figures 4-5 Each of the two sets of semi-ring tubes 41 has an elastic diaphragm 42 fixed on the side away from each other. The elastic diaphragm 42 has an elastic force that drives the two sets of semi-ring tubes 41 away from each other. In order to further improve the reset capability of the semi-ring tubes 41, each of the two sets of semi-ring tubes 41 is provided with a diamond-shaped movable lever arm 402 and a terminal 412 at the end away from the actuating semi-ring block 44. The diagonal nodes on one side of the diamond-shaped movable lever arm 402 are rotatably connected to the corresponding semi-ring tubes 41. A reset spring 403 is fixed between the diagonal nodes on the other side of the diamond-shaped movable lever arm 402. The reset spring 403 has an elastic force that drives the two sets of semi-ring tubes 41 away from each other. Both the elastic diaphragm 42 and the reset spring 403 provide the elastic force for the semi-ring tubes 41 to open outward, ensuring that they remain in the initial open state when not plugged in. When plugged in, the self-locking tube 6 of the male connector 2 presses the actuating semi-ring block 44, causing the semi-ring tubes 41 to close synchronously, thereby achieving the clamping and locking of the battery cell column 22.

[0020] The male connector 2 is equipped with a self-locking tube 6, which is used to press the two sets of actuating semi-ring blocks 44 close together and make the two sets of semi-ring tubes 41 synchronously close when the female connector 1 and the male connector 2 are engaged. The male connector 2 is also equipped with a tensioning disc 7, which is used to provide circumferential support for the self-locking tube 6.

[0021] Please see Figures 3-7 Furthermore, the connecting female head 1 includes a docking base 13, on which a straight groove 14 corresponding to the clamping component 4 is provided, and the end of the elastic diaphragm 42 away from the semi-ring tube 41 is fixed on the inner wall of the straight groove 14. The straight groove 14 is also provided with symmetrically arranged guide rails 143, and the two sides of the semi-annular tube 41 are symmetrically provided with sliding grooves 411 that match the guide rails 143.

[0022] Please see Figures 4-7In order to improve the sealing between the two sets of semi-ring pipes 41, a sealing diaphragm 401 is glued to the opposite side of the two sets of semi-ring pipes 41 to block the lateral intrusion of water and air. A sealing baffle 43 is also fixed between the semi-ring pipe 41 and the actuating semi-ring block 44. An end cover plate 3 is detachably fixed to the end of the docking base 13. The end cover plate 3 is provided with a sealing groove 2 31 and a sealing groove 141 corresponding to the sealing baffle 43 on the opposite side of the straight groove 14. A sealing ring 2 32 and a sealing ring 142 are fixed on the opposite side of the sealing groove 2 31 and the sealing groove 141 respectively. The two sides of the sealing baffle 43 abut against the sealing ring 2 32 and the sealing ring 142 respectively. The docking base 13 and the end cover plate 3 form an axial seal through the cooperation of the sealing ring 142, the sealing ring 2 32 and the sealing baffle 43. Specifically, when the semi-ring tube 41 is closed, the glued sealing diaphragm 401 forms an annular sealing layer, blocking water vapor from entering through the gap between the battery cell column 22 and the semi-circular battery cell sleeve 45. The sealing diaphragm 401 is made of fluororubber with a thickness of 0.5mm and a Shore hardness of 70A, generating a contact pressure of ≥0.3MPa when the semi-ring tube 41 is closed. When the sealing baffle 43 moves with the semi-ring tube 41, it squeezes the sealing ring 142 and the sealing ring 32 on both sides respectively, forming a double axial seal. The sealing ring 142 is made of perfluoroether rubber with a temperature range of -40℃ to 260℃ and a compression set of ≤5% (150℃×70h). When the outer tube 21 is inserted into the outer ring slot 11, it squeezes the waterproof sealing gasket 15 to form an outer circumferential waterproof barrier. The waterproof sealing gasket 15 is made of foamed silicone with a density of 0.2g / cm³, a resilience of ≥90%, and can fill gaps of ≤1mm.

[0023] Please see Figures 7-8 It should be noted that the end of the semi-ring block 44 away from the semi-ring tube 41 passes through the sealing groove 31 and extends to the side of the end cover plate 3 away from the docking base 13. The female connector 1 is also provided with an outer ring slot 11, and the male connector 2 is provided with a docking outer tube 21 that matches the outer ring slot 11. The inner side of the docking outer tube 21 is provided with a foolproof groove 211. The outer ring slot 11 is provided with a foolproof strip 111 that matches the foolproof groove 211 to prevent mis-insertion. A waterproof sealing gasket 15 is also fixed in the outer ring slot 11 to achieve docking seal on the outside of the connector.

[0024] Please see Figures 7-10The female connector 1 is provided with an inner ring slot 12 between the outer ring slot 11 and the docking base 13. The inner ring slot 12 cooperates with the self-locking tube 6. The self-locking tube 6 is fixed on one side of the tensioning disc 7. The tensioning disc 7 is rotatably connected to the male connector 2. Several tensioning springs 8 are fixed between the tensioning disc 7 and the male connector 2 at equal intervals. Several guide grooves 61 are provided on the outer wall of the self-locking tube 6 at equal angles. The port side of the inner ring slot 12 is provided with balls 121 that cooperate with the guide grooves 61. The tensioning disc 7 is also provided with an execution groove 71 on the inner side of the self-locking tube 6. The guide grooves 61 on the outer wall of the self-locking tube 6 cooperate with the balls 121 of the inner ring slot 12. The rotation of the tensioning disc 7 drives the circumferential rotation of the self-locking tube 6. The execution groove 71 synchronously controls the opening and closing of the semi-ring tube 41.

[0025] Please see Figures 9-11 It should be noted that the guide groove 61 includes a spiral groove 611 and a spiral groove 612 connected to the spiral groove 611. The side of the spiral groove 612 away from the spiral groove 611 is connected to an arc groove 613. The execution groove 71 includes a petal-shaped outer groove wall 711 and a petal-shaped inner groove wall 712. The maximum distance between the petal-shaped outer groove wall 711 and the petal-shaped inner groove wall 712 is equal to the maximum distance when the execution half-ring block 44 is far apart. The minimum distance between the petal-shaped outer groove wall 711 and the petal-shaped inner groove wall 712 is equal to the maximum distance when the execution half-ring block 44 is in contact. Arc grooves 701 are provided at the curve nodes of the petal-shaped outer groove wall 711 and the petal-shaped inner groove wall 712. The arc grooves 701 have the same outer radius as the execution half-ring block 44.

[0026] Furthermore, the tensioning disc 7 has four sets of equally spaced arc-shaped through slots 72. One end of the battery core column 22 extends through the arc-shaped through slots 72 and is electrically connected to the external cable. On the side of the tensioning disc 7 away from the self-locking tube 6, there are four sets of equally spaced connecting rods 73. The connecting male head 2 has an arc-shaped through slot 23 that cooperates with the connecting rods 73. One end of the connecting rod 73 extends through the arc-shaped through slot 23 to the outer wall of the connecting male head 2 and is fixed with a reset hand ring 74. The tensioning disc 7 is manually rotated by the reset hand ring 74, which drives the self-locking tube 6 to rotate in the opposite direction to complete the unlocking action.

[0027] In the free state, the ends of the first spiral groove 611 of the tension spring 8 are opposite to the ball 121. The distance between the two ends of the first spiral groove 611 in the axial direction of the self-locking tube 6 is equal to the distance between the end face of the self-locking tube 6 and the end face of the execution groove 71 in the axial direction. The distance between the two ends of the second spiral groove 612 and the arc groove 613 in the axial direction of the self-locking tube 6 is equal to the groove depth of the execution groove 71. The arc length of the projection surface of the two ends of the first spiral groove 611 in the direction perpendicular to the axial direction of the self-locking tube 6 is equal to the total arc length of the projection surface of the second spiral groove 612 and the arc groove 613 in the direction perpendicular to the axial direction of the self-locking tube 6. The axis of the arc groove 613 is coaxial with the axis of the self-locking tube 6.

[0028] Furthermore, when the ball 121 moves from the port of the first spiral groove 611 to the connection node between the first spiral groove 611 and the second spiral groove 612, the tension spring 8 changes from a free state to a state of maximum compression; when the ball 121 and the second spiral groove 612 move into the arc groove 613, the tension spring 8 changes from a compressed state to a released state.

[0029] In the initial, unaligned state, the tension spring 8 is in a free state, the ball bearing 121 is aligned with the port of the spiral groove 611, the self-locking tube 6 is in the initial position, and the semi-ring tube 41 is open under the action of the elastic diaphragm 42 and the return spring 403. The outer tube 21 of the male connector 2 is aligned with the outer ring slot 11 of the female connector, and the anti-misalignment strip 111 and anti-misalignment groove 211 ensure correct alignment. Continuing forward, the battery cell column 22 is inserted into the semi-circular battery cell sleeve 45. During this process, with the cooperation of the ball bearing 121 and the spiral groove 611, the self-locking tube 6 rotates, causing the tensioning disc 7 to rotate and compress the tension spring 8. When the ball bearing 121 reaches the connection point between the spiral groove 611 and the spiral groove 612, the end face of the actuating semi-ring block 44 is opposite to the end face of the actuating groove 71, and the actuating semi-ring block 44 tends to engage with the actuating groove 71. As the propulsion continues, the ball bearing 121 enters the spiral groove 612, and the tension spring 8 begins to release the compressed elastic potential energy. At this time, both the self-locking tube 6 and the tensioning disc 7 reverse. After the actuating semi-ring block 44 is engaged in the actuating groove 71, the actuating groove 71 gradually changes from the maximum groove width to the minimum groove width, thereby causing the two sets of semi-ring tubes 41 to slide towards each other along the guide rail 143 until the anti-detachment protrusion 451 is engaged in the anti-detachment groove 221. When the ball bearing 121 enters the arc groove 613, the two sets of actuating semi-ring blocks 44 are completely engaged, and the semi-circular battery cell sleeve 45 completely hugs the battery cell column 22, completing the conductive contact. The anti-detachment protrusion 451 and the anti-detachment groove 221 form a first-level mechanical lock, and the ball bearing 121 and the arc groove 613 form a second-level mechanical lock for the self-locking tube 6 with axial displacement, thereby completing the self-locking effect after the connection of the female connector 1 and the male connector 2.

[0030] When it is necessary to disconnect the female connector 1 and the male connector 2, simply rotate the reset ring 74 by external force. The ball 121 slides from the arc groove 613 into the spiral groove 612. At this time, the locking action of the self-locking tube 6 axial displacement is released. Continue to rotate the reset ring 74 to make the ball 121 move along the spiral groove 612, so that the self-locking tube 6 can gradually disengage from the female connector 1 and retract axially. At the same time, the execution groove 71 gradually changes from the minimum groove width to the maximum groove width. The semi-ring tube 41 opens under the action of the elastic diaphragm 42 and releases the locking state of the anti-disengagement protrusion 451 and the anti-disengagement groove 221. At the same time, the tension spring 8 is compressed again. When the ball 121 enters the spiral groove 611, the elastic force released by the tension spring 8 pushes the self-locking tube 6 to rotate. With the cooperation of the spiral groove 611 and the ball 121, the female connector 1 and the male connector 2 can be automatically separated, improving the convenience of disassembly.

[0031] After the female connector 1 and male connector 2 of this application are mated, the compression and release of the tension spring 8, combined with the guidance of the guide groove 61, can achieve the self-locking of the anti-detachment protrusion 451. The mechanical engagement of the anti-detachment protrusion 451 and the anti-detachment groove 221, combined with the clamping force of the semi-ring tube 41, can withstand a large axial pull-out force. Compared with traditional snap-fit ​​connectors, it can effectively prevent vibration-induced detachment. At the same time, since this application adopts the method of semi-circular cell sleeve 45 engaging with cell post 22, compared with the traditional hard plug connection method, it can effectively reduce the friction between the semi-circular cell sleeve 45 and cell post 22, and effectively avoid the phenomenon of poor contact caused by excessive friction.

[0032] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A cable connector with a self-locking function, comprising a female connector (1) and a male connector (2), characterized in that, The female connector (1) is provided with several clamping components (4) evenly distributed at equal angles. The clamping components (4) are composed of two sets of symmetrically slidingly connected semi-ring tubes (41). One end of the semi-ring tube (41) is fixed with an actuating semi-ring block (44). A semi-circular battery sleeve (45) is fixed inside the semi-ring tube (41). An anti-detachment protrusion (451) is provided inside the semi-circular battery sleeve (45). The male connector (2) is provided with a battery post (22) corresponding to the clamping components (4). An anti-detachment groove (221) is provided on the battery post (22) to cooperate with the anti-detachment protrusion (451). On the opposite sides of the two sets of semi-circular tubes (41), an elastic diaphragm (42) is fixed. The elastic diaphragm (42) has an elastic force that drives the two sets of semi-circular tubes (41) to move away from each other. On the opposite sides of the two sets of semi-circular tubes (41), a sealing diaphragm (401) is also glued. The male connector (2) is provided with a self-locking tube (6), which is used to press the two sets of actuating semi-ring blocks (44) close together and make the two sets of semi-ring tubes (41) synchronously close together when the female connector (1) and the male connector (2) are engaged. The male connector (2) is also provided with a tensioning disc (7), which is used to provide circumferential support force for the self-locking tube (6).

2. A cable connector with self-locking function according to claim 1, characterized in that, The connecting female head (1) includes a docking base (13), and the docking base (13) is provided with a straight groove (14) corresponding to the clamping component (4). The end of the elastic diaphragm (42) away from the semi-ring tube (41) is fixed on the inner wall of the straight groove (14). The straight groove (14) is also provided with symmetrically arranged guide rails (143), and the two sides of the semi-annular tube (41) are symmetrically provided with sliding grooves (411) that match the guide rails (143).

3. A cable connector with a self-locking function according to claim 2, characterized in that, A sealing baffle (43) is fixed between the semi-ring pipe (41) and the execution semi-ring block (44). An end cover plate (3) is detachably fixed at the end of the docking base (13). The end cover plate (3) is provided with a sealing groove two (31) and a sealing groove one (141) corresponding to the sealing baffle (43) on the side opposite to the straight groove (14). On the side opposite to the sealing groove 1 (141), sealing ring 2 (32) and sealing ring 1 (142) are fixed respectively. The two sides of the sealing baffle (43) abut against sealing ring 2 (32) and sealing ring 1 (142) respectively. The end of the execution semi-ring block (44) away from the semi-ring tube (41) passes through the sealing groove 2 (31) and extends to the side of the end cover plate (3) away from the docking base (13).

4. A cable connector with self-locking function according to claim 1, characterized in that, Both sets of semi-circular tubes (41) are provided with a rhomboid movable lever arm (402) and a terminal block (412) at the end away from the actuating semi-circular block (44). A return spring (403) is fixed between the rhomboid movable lever arms (402). The return spring (403) has an elastic force that drives the two sets of semi-circular tubes (41) to move away from each other.

5. A cable connector with self-locking function according to claim 1, characterized in that, The female connector (1) is provided with an outer ring slot (11), the male connector (2) is provided with a mating outer tube (21) that matches the outer ring slot (11), the inner side of the mating outer tube (21) is provided with a foolproof groove (211), the outer ring slot (11) is provided with a foolproof strip (111) that matches the foolproof groove (211), and a waterproof sealing gasket (15) is fixed inside the outer ring slot (11).

6. A cable connector with a self-locking function according to claim 5, characterized in that, The connecting female head (1) is also provided with an inner ring slot (12) between the outer ring slot (11) and the docking base (13), and the inner ring slot (12) cooperates with the self-locking tube (6); The self-locking tube (6) is fixed on one side of the tensioning disc (7). The tensioning disc (7) is rotatably connected to the connecting male (2). Several tensioning springs (8) are fixed between the tensioning disc (7) and the connecting male (2) at equal intervals. Several guide grooves (61) are arranged at equal angles on the outer wall of the self-locking tube (6). A ball (121) that cooperates with the guide groove (61) is provided on the port side of the inner ring slot (12). The tensioning disc (7) is also provided with an actuation groove (71) on the inner side of the self-locking tube (6).

7. A cable connector with a self-locking function according to claim 6, characterized in that, The guide groove (61) includes a spiral groove one (611) and a spiral groove two (612) connected to the spiral groove one (611). The spiral groove two (612) is connected to an arc groove (613) on the side away from the spiral groove one (611). The execution groove (71) includes a petal-shaped outer groove wall (711) and a petal-shaped inner groove wall (712). The maximum distance between the petal-shaped outer groove wall (711) and the petal-shaped inner groove wall (712) is equal to the maximum distance when the execution half-ring block (44) is far apart. The minimum distance between the petal-shaped outer groove wall (711) and the petal-shaped inner groove wall (712) is equal to the maximum distance when the execution half-ring block (44) is in contact with each other. Both the outer petal-shaped groove wall (711) and the inner petal-shaped groove wall (712) are provided with arc-shaped grooves (701) at their curve nodes, and the arc-shaped grooves (701) are equal to the outer radius of the execution semi-ring block (44).

8. A cable connector with a self-locking function according to claim 6, characterized in that, The tensioning disc (7) has four sets of arc-shaped through slots (72) arranged at equal angles. One end of the battery core column (22) extends through the arc-shaped through slots (72) and is electrically connected to the external cable. The tensioning disc (7) has four sets of connecting rods (73) arranged at equal angles on the side away from the self-locking tube (6). The connecting male (2) has an arc-shaped through groove (23) that matches the connecting rod (73). One end of the connecting rod (73) extends through the arc-shaped through groove (23) to the outer wall of the connecting male (2) and is fixed with a reset wristband (74).

9. A cable connector with a self-locking function according to claim 7, characterized in that, In the free state, the port of the first spiral groove (611) of the tension spring (8) is opposite to the ball (121), and the distance between the two ends of the first spiral groove (611) in the axial direction of the self-locking tube (6) is equal to the distance between the end face of the self-locking tube (6) and the end face of the execution groove (71) in the axial direction. The distance between the two ends of the spiral groove (612) and the arc groove (613) in the direction of the axis of the self-locking tube (6) is equal to the groove depth of the execution groove (71); The arc length of the projection surface of the two ends of the spiral groove one (611) in the direction perpendicular to the axis of the self-locking tube (6) is equal to the total arc length of the projection surface of the spiral groove two (612) and the arc groove (613) in the direction perpendicular to the axis of the self-locking tube (6). The axis of the arc groove (613) is coaxial with the axis of the self-locking tube (6).

10. A cable connector with a self-locking function according to claim 7, characterized in that, When the ball (121) is displaced from the port of the first spiral groove (611) to the connection node of the first spiral groove (611) and the second spiral groove (612), the tension spring (8) changes from a free state to a state of maximum compression; when the ball (121) and the second spiral groove (612) are displaced into the arc groove (613), the tension spring (8) changes from a compressed state to a released state.

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