Automatic connecting device for cable plug

Abstract

The invention provides an automatic cable plug connecting device, and relates to the technical field of cable connecting devices, the automatic cable plug connecting device comprises a lower shell and an upper shell, the end part of one side of the upper shell is hinged with the end part of the lower shell, the end parts of the two sides of the lower shell are provided with mounting holes, the end parts of the two sides of the upper shell are provided with semicircular groove holes, and the semicircular groove holes are connected with the mounting holes. A two-way clamping assembly is installed in the lower shell and comprises a fixed sleeve and a movable sleeve, a clamping block is arranged in the fixed sleeve, a pressing block is arranged in the movable sleeve, a two-way jacking structure is arranged between the clamping block and the pressing block, and an end connecting assembly is arranged in the fixed sleeve. And an automatic locking structure is arranged at the covering position of the lower shell and the upper shell. According to the invention, the cable core is not rubbed during use, the influence of the external environment on the cable connecting end is prevented through the lower shell and the upper shell, and the potential safety hazard caused by accidental detonation of the cable connecting end is also effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection devices, and particularly to an automatic cable plug connection device. Background Art

[0002] Cables are widely used in the fields of power transmission, communication, industry, and construction. In actual power transmission and signal transmission, the length of a single cable is often limited and cannot meet the requirements of long-distance transmission. By connecting multiple sections of cables, the line can be extended to the required position to achieve the transmission of power or signals from the source to the destination. Moreover, transporting the cables in sections to the construction site and then connecting them can reduce the construction difficulty and transportation cost. At the same time, in a complex wiring environment, such as inside a building or underground pipeline, connecting multiple sections of cables can more flexibly adapt to different path and space requirements.

[0003] In the prior art, the connection method of cables is a plug-and-unplug connection method. During the plugging and unplugging process of the cables, the cores of the cables will be repeatedly rubbed, thus causing wear to the cores of the cables, reducing the conductivity of the cables. Moreover, sand, dust, etc. in the external environment will affect the conductivity of the cable connection ends, and when the cable connection ends accidentally explode and burn, it will pose a safety hazard to the outside. Summary of the Invention

[0004] In order to solve the above technical problems in the prior art, the present invention provides an automatic cable plug connection device.

[0005] The automatic cable plug connection device provided by the present invention adopts the following technical solutions:

[0006] An automatic cable plug connection device includes a lower housing and an upper housing covering the upper part of the lower housing. One end of the upper housing is hinged to the end of the lower housing. Mounting holes are provided at both ends of the lower housing. Semi-circular slot holes are provided at both ends of the upper housing. Among them, a two-way clamping assembly is installed inside the lower housing to fix the bottoms of the cores in the first cable and the second cable through the two-way clamping assembly. The two-way clamping assembly includes a fixed sleeve and a movable sleeve. The fixed sleeve is fixedly installed in the mounting hole at one end of the lower housing, and the movable sleeve is slidably arranged in the mounting hole at the other end of the lower housing. Through holes are provided at the axial positions of the fixed sleeve and the movable sleeve. A clamping block is arranged inside the fixed sleeve, and a pressing block is arranged inside the movable sleeve. A two-way pressing structure is arranged between the clamping block and the pressing block. An end connection assembly is arranged in the fixed sleeve to fixedly connect the ends of the cores of the first cable and the second cable. An automatic locking structure is arranged at the covering position of the lower housing and the upper housing.

[0007] Further, a snap ring is formed outside the mounting hole on one side in the lower housing, and a sliding ring is provided inside the mounting hole on the other side in the lower housing. After the upper housing is covered on the upper part of the lower housing, the slot holes at both ends of the upper housing are respectively covered on the snap ring and the sliding ring at the end of the lower housing.

[0008] Further, a clamping groove is provided at one end of the fixed sleeve. The snap ring at the end of the lower housing is clamped in the clamping groove at the end of the fixed sleeve, so that the fixed sleeve is fixedly installed in the mounting hole at one end of the lower housing. A cylindrical sliding sleeve is provided at one end of the movable sleeve, and the cylindrical sliding sleeve is slidably arranged in the sliding ring on the side of the lower housing.

[0009] Further, a connecting rod is rotatably connected between the movable sleeve and the upper housing. One end of the connecting rod is hinged to the outer wall of the movable sleeve, and the other end of the connecting rod is hinged to the inner wall of the upper housing. When the upper housing is covered on the upper part of the lower housing, the upper housing exerts a forward thrust on the connecting rod during the movement process. When the connecting rod moves forward, it drives the movable sleeve to slide towards the fixed sleeve, so that the movable sleeve is sleeved on the end of the fixed sleeve.

[0010] Further, a first inclined groove is provided inside the fixed sleeve. The opening of the first inclined groove gradually decreases towards the snap ring in the lower housing. A clamping block is slidably arranged in the first inclined groove. The clamping block includes a first clamping block and a second clamping block. The first clamping block and the second clamping block are symmetrically arranged in the first inclined groove. A wiring channel is provided between the first clamping block and the second clamping block. The first cable penetrates into the wiring channel between the first clamping block and the second clamping block. A clamping space is also provided between the first clamping block and the second clamping block. When the first clamping block and the second clamping block move towards the snap ring, the clamping space between the first clamping block and the second clamping block gradually decreases, so that the first clamping block and the second clamping block clamp and fix the bottom of the core in the first cable.

[0011] Further, a second inclined groove is provided inside the movable sleeve. The opening of the second inclined groove gradually decreases towards the sliding ring in the lower housing. A pressing block is slidably arranged in the second inclined groove. The pressing block includes a first pressing block and a second pressing block. The first pressing block and the second pressing block are symmetrically arranged in the second inclined groove. A wiring channel is provided between the first pressing block and the second pressing block. The second cable penetrates into the wiring channel between the first pressing block and the second pressing block. A pressing space is also provided between the first pressing block and the second pressing block. When the first pressing block and the second pressing block move towards the sliding ring, the pressing space between the first pressing block and the second pressing block gradually decreases, so that the first pressing block and the second pressing block clamp and fix the bottom of the core in the second cable.

[0012] Further, the bidirectional pressing structure includes a synchronous plate and a limiting spring. One end of the second chute away from the slip ring extends outward to form a limiting cylinder. The synchronous plate is slidably arranged in the limiting cylinder. One end of the synchronous plate close to the pressing block has a positioning post. The limiting spring is sleeved outside the positioning post. One end of the side wall of the second chute has a sliding hole. One end of the limiting spring is fixedly connected to the synchronous plate, and the other end of the limiting spring is fixedly connected to the outer wall of the sliding hole. The setting positions of the positioning post and the sliding hole correspond to each other. Under the elastic force of the positioning post, the positioning post moves to the outside of the sliding hole. One end of the synchronous plate away from the positioning post is provided with a connecting post. The connecting post passes through the synchronous plate and extends towards the positioning post. The setting position of the connecting post corresponds to the setting positions of the clamping block and the pressing block.

[0013] Further, the end connection assembly includes an arc-shaped conductive plate, which has a conductive function. The end of the fixed sleeve extends outward to form an end sleeve body. There is a fixed channel inside the end sleeve body. The number of arc-shaped conductive plates is two. The two arc-shaped conductive plates are symmetrically arranged in the fixed channel inside the end sleeve body. One end of the outer wall of the arc-shaped conductive plate has a sliding rod. There is a sliding groove on the outer wall of the end sleeve body. The sliding rod on the upper part of the arc-shaped conductive plate passes through the sliding groove on the end sleeve body and a moving beam is arranged at its end. After the moving beam moves downward, it is embedded in the sliding groove on the outer wall of the end sleeve body. A thrust spring is arranged between the moving beam and the sliding groove on the outer wall of the end sleeve body. Under the elastic force of the thrust spring, the moving beam moves to the outside of the sliding groove, so that the arc-shaped conductive plate is kept in an open state. There is a triangular boss on the inner wall of the limiting cylinder in the moving sleeve.

[0014] Further, the automatic locking structure includes a locking pin and a locking piece. A connecting seat protrudes outward from the side of the fixed sleeve. A locking seat protrudes outward from the side of the moving sleeve corresponding to the connecting seat. The locking pin is fixedly arranged inside the connecting seat. The end of the locking pin has a conical locking head. There is a locking hole on the side wall of the locking seat corresponding to the locking pin. A through locking groove is arranged on the side of the locking seat. The locking hole on the side of the locking seat communicates with the locking groove. The locking piece is arranged in the locking groove. There is a limiting post on the bottom wall of the locking groove. A spring is arranged around the outer wall of the limiting post. There is a limiting slideway at the bottom of the locking piece. The two ends of the spring on the outer wall of the limiting post are respectively connected to the bottom wall of the locking groove and the bottom wall of the limiting slideway. There is an arc-shaped locking groove at the center of the locking piece. The arc-shaped locking groove is arranged in the locking hole in the locking seat. There are push plates extending outward from both ends of the arc-shaped locking groove in the locking piece. Unlocking pins for pushing the push plates in the locking piece to move are arranged on the side walls of the lower shell and the upper shell. The unlocking pin passes through the side wall of the lower shell and extends inward to be provided with a push piece. A spring for preventing the unlocking pin from moving towards the lower shell is arranged on the outer wall of the lower shell. The setting method of the unlocking pin in the upper shell is the same as that of the unlocking pin in the lower shell.

[0015] In summary, the beneficial effects of the present invention are as follows:

[0016] 1. By providing a two-way clamping assembly, when in use, the cores in the first cable are inserted into the fixed sleeve in the two-way clamping assembly, and the cores in the second cable are inserted into the moving sleeve in the two-way clamping assembly. The upper housing is covered downward. During the downward covering process of the upper housing, the clamping block is pushed by the two-way pressing structure to fix the bottom of the cores in the first cable, and the pressing block is pushed by the two-way pressing structure to fix the bottom of the cores in the second cable. At the same time, the end parts of the cores in the first cable and the second cable are pressed and fixed by the arc-shaped conductive plate in the end connection assembly, and the cores of the first cable and the second cable are conductively connected through the conductive function of the arc-shaped conductive plate, thus completing the connection of the cable plug. Finally, the covering position of the upper housing is locked by the automatic locking structure. By pressing the unlocking pin in the automatic locking structure, the upper housing can be unlocked. This structure does not friction the cable cores during cable connection, ensuring the conductivity of the cable.

[0017] 2. By providing the lower housing and the upper housing, the present invention effectively prevents the influence of sand, dust, etc. in the external environment on the conductivity of the cable connection end, and also effectively prevents the potential safety hazards to the outside caused by the accidental explosion of the cable connection end, improving the overall conductive performance and safety performance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic cross-sectional view of the present invention.

[0020] Figure 3 It is a schematic exploded view of the present invention.

[0021] Figure 4 It is a schematic cross-sectional view of the two-way pressing structure of the present invention.

[0022] Figure 5 It is a schematic exploded view of the end connection assembly of the present invention.

[0023] Figure 6 It is a schematic diagram of the moving sleeve structure of the present invention.

[0024] Figure 7 It is a schematic cross-sectional view of the end connection assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the automatic locking structure of the present invention.

[0026] Figure 9 of the present inventionFigure 8 Schematic diagram of the enlarged view of part A.

[0027] Figure 10 Schematic diagram of the structure of the limit post and the lock piece of the present invention.

[0028] In the figure: 1 - lower housing; 2 - upper housing; 3 - fixed sleeve; 4 - moving sleeve; 6 - synchronous plate; 21 - connecting rod; 31 - clamping block; 32 - end sleeve body; 33 - first inclined groove; 41 - pressing block; 42 - sliding hole; 43 - second inclined groove; 44 - triangular boss; 51 - second cable; 52 - first cable; 61 - connecting column; 62 - limit spring; 63 - positioning post; 71 - arc-shaped conductive plate; 72 - moving beam; 73 - thrust spring; 81 - connecting seat; 82 - locking pin; 83 - locking seat; 84 - lock piece; 85 - unlocking pin; 86 - locking groove; 87 - limit post. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with specific embodiments. The schematic embodiments and descriptions here are used to explain the present invention, but not to limit the present invention.

[0030] Embodiment: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 shown, an automatic cable plug connection device.

[0031] Referring to Figure 1 shown, the present invention discloses an automatic cable plug connection device, including a lower housing 1 and an upper housing 2 covering the upper part of the lower housing 1. One end of the upper housing 2 is hinged to the end of the lower housing 1. Installation holes are provided at both ends of the lower housing 1. A snap ring is formed outside one installation hole in the lower housing 1, and a slip ring is provided inside the other installation hole in the lower housing 1. Semi-circular slot holes are provided at both ends of the upper housing 2. After the upper housing 2 is covered on the upper part of the lower housing 1, the slot holes at both ends of the upper housing 2 respectively cover the snap ring and the slip ring at the end of the lower housing 1. A two-way clamping assembly is installed inside the lower housing 1, and the bottoms of the wire cores in the first cable 52 and the second cable 51 are fixed by the above two-way clamping assembly.

[0032] Preferably, the bidirectional clamping assembly includes a fixed sleeve 3 and a movable sleeve 4. The fixed sleeve 3 is fixedly installed in the mounting hole at one end of the lower housing 1, and the movable sleeve 4 is slidably arranged in the mounting hole at the other end of the lower housing 1. A clamping groove is provided at one end of the fixed sleeve 3, and the clamping ring at the end of the lower housing 1 is clamped in the clamping groove at the end of the fixed sleeve 3, so that the fixed sleeve 3 is fixedly installed in the mounting hole at one end of the lower housing 1. A cylindrical sliding sleeve is provided at one end of the movable sleeve 4, and the cylindrical sliding sleeve is slidably arranged in the sliding ring on the side of the lower housing 1. Through holes are provided at the axial positions of the fixed sleeve 3 and the movable sleeve 4. During use, the core of the first cable 52 is inserted into the through hole in the fixed sleeve 3, and at the same time, the core of the second cable 51 is inserted into the through hole in the movable sleeve 4, so that the cores of the first cable 52 and the second cable 51 are installed inside the lower housing 1 and the upper housing 2 for connection. A connecting rod 21 is rotatably connected between the movable sleeve 4 and the upper housing 2. One end of the connecting rod 21 is hinged to the outer wall of the movable sleeve 4, and the other end of the connecting rod 21 is hinged to the inner wall of the upper housing 2. When the upper housing 2 is covered on the upper part of the lower housing 1, the upper housing 2 exerts a forward thrust on the connecting rod 21 during the movement. When the connecting rod 21 moves forward, it drives the movable sleeve 4 to slide towards the fixed sleeve 3, so that the movable sleeve 4 is sleeved on the end of the fixed sleeve 3.

[0033] Refer to Figures 2 - 4As shown, inside the fixed sleeve 3 there is a first inclined groove 33. The opening of the first inclined groove 33 gradually decreases in the direction of the snap ring in the lower housing 1. A clamping block 31 is slidably arranged in the first inclined groove 33. The clamping block 31 includes a first clamping block and a second clamping block. The first clamping block and the second clamping block are symmetrically arranged in the first inclined groove 33. There is a wiring channel between the first clamping block and the second clamping block. The first cable 52 penetrates into the wiring channel between the first clamping block and the second clamping block. There is also a clamping space between the first clamping block and the second clamping block. When the first clamping block and the second clamping block move towards the snap ring direction, the clamping space between the first clamping block and the second clamping block gradually decreases, so that the first clamping block and the second clamping block clamp and fix the bottom of the wire core in the first cable 52. Inside the moving sleeve 4 there is a second inclined groove 43. The opening of the second inclined groove 43 gradually decreases in the direction of the slip ring in the lower housing 1. A pressing block 41 is slidably arranged in the second inclined groove 43. The pressing block 41 includes a first pressing block and a second pressing block. The first pressing block and the second pressing block are symmetrically arranged in the second inclined groove 43. There is a wiring channel between the first pressing block and the second pressing block. The second cable 51 penetrates into the wiring channel between the first pressing block and the second pressing block. There is also a pressing space between the first pressing block and the second pressing block. When the first pressing block and the second pressing block move towards the slip ring direction, the pressing space between the first pressing block and the second pressing block gradually decreases, so that the first pressing block and the second pressing block clamp and fix the bottom of the wire core in the second cable 51. A two-way pressing structure is arranged between the clamping block 31 and the pressing block 41. The two-way pressing structure includes a synchronous plate 6 and a limiting spring 62. At one end of the second inclined groove 43 far from the slip ring, a limiting cylinder extends outwards. The synchronous plate 6 is slidably arranged in the above-mentioned limiting cylinder. At one end of the synchronous plate 6 close to the pressing block 41, there is a positioning column 63. The limiting spring 62 is sleeved outside the positioning column 63. At the end of the side wall of the second inclined groove 43, there is a sliding hole 42. One end of the limiting spring 62 is fixedly connected to the synchronous plate 6, and the other end of the limiting spring 62 is fixedly connected to the outer wall of the sliding hole 42. The setting positions of the positioning column 63 and the sliding hole 42 correspond to each other. Under the elastic force of the positioning column 63, the positioning column 63 moves to the outside of the sliding hole 42. At one end of the synchronous plate 6 far from the positioning column 63, there is a connecting column 61. The connecting column 61 passes through the synchronous plate 6 and extends towards the positioning column 63. The setting position of the connecting column 61 corresponds to the setting positions of the clamping block 31 and the pressing block 41.In use, the first cable 52 is inserted into the inside of the clamping block 31, and at the same time, the second cable 51 is inserted into the inside of the pressing block 41. When the upper housing 2 is covered downward, the moving sleeve 4 moves toward the fixed sleeve 3. The pressing block 41 inside the second inclined groove 43 contacts one end of the connecting column 61 and pushes the synchronous plate 6 toward the clamping block 31, so that the other end of the connecting column 61 contacts the clamping block 31. Under the resistance of the clamping block 31, the synchronous plate 6 squeezes the limiting spring 62, and the positioning column 63 is inserted into the sliding hole 42. At the same time, under the resistance of the connecting column 61, the clamping block 31 moves toward the snap ring to fix the bottom of the core of the first cable 52, and at the same time, the pressing block 41 moves toward the slip ring to fix the bottom of the core of the second cable 51.

[0034] Refer to Figures 5 - 7 As shown, an end connection assembly is provided in the fixed sleeve 3, and the end connection assembly can fixedly connect the ends of the cores of the first cable 52 and the second cable 51. Preferably, the end connection assembly includes an arc-shaped conductive plate 71, and the arc-shaped conductive plate 71 has a conductive function and plays a conductive role when the cables are connected. An end sleeve 32 extends outward from the end of the fixed sleeve 3, and a fixed channel is provided inside the end sleeve 32. The number of the arc-shaped conductive plates 71 is two, and the two arc-shaped conductive plates 71 are symmetrically arranged in the fixed channel inside the end sleeve 32. A sliding rod is provided on the upper part of the outer wall of the arc-shaped conductive plate 71, and a sliding groove is provided on the outer wall of the end sleeve 32. The upper sliding rod of the arc-shaped conductive plate 71 passes through the sliding groove in the end sleeve 32 and a moving beam 72 is provided at its end. After the moving beam 72 moves downward, it is embedded in the sliding groove on the outer wall of the end sleeve 32. A thrust spring 73 is provided between the moving beam 72 and the sliding groove on the outer wall of the end sleeve 32. Under the elastic force of the thrust spring 73, the moving beam 72 moves to the outside of the above-mentioned sliding groove, so that the arc-shaped conductive plate 71 is kept in an open state, facilitating the insertion of the cable core into the arc-shaped conductive plate 71. A triangular boss 44 is provided on the inner wall of the limiting cylinder in the moving sleeve 4. When the present invention is used to connect the cables, the first cable 52 is inserted into the arc-shaped conductive plate 71 through the fixed sleeve 3. During the movement of the moving sleeve 4, the end of the core of the second cable 51 in the moving sleeve 4 moves into the arc-shaped conductive plate 71 and contacts the end of the core of the first cable 52. The limiting cylinder in the moving sleeve 4 is sleeved outside the end sleeve 32, and the inner wall of the limiting cylinder in the moving sleeve 4 presses the outer wall of the moving beam 72 downward, so that the triangular boss 44 presses and fixes the end of the moving beam 72. At this time, the moving beam 72 is embedded in the sliding groove on the surface of the end sleeve 32, and the moving beam 72 pushes the arc-shaped conductive plate 71 to press and fix the ends of the cores in the first cable 52 and the second cable 51.

[0035] Refer to Figures 8 - 10As shown, an automatic locking structure is provided at the covering position of the lower housing 1 and the upper housing 2. Through the automatic locking structure, the covering position of the upper housing 2 and the lower housing 1 can be locked and fixed. The automatic locking structure includes a locking pin 82 and a locking piece 84. A connecting seat 81 protrudes outward from the side of the fixed sleeve 3. A locking seat 83 protrudes outward from the side of the moving sleeve 4 at a position corresponding to the connecting seat 81. The locking pin 82 is fixedly arranged inside the connecting seat 81. The end of the locking pin 82 has a conical locking head. A locking hole is provided on the side wall of the locking seat 83 corresponding to the locking pin 82. A through locking groove 86 is provided on the side of the locking seat 83. The locking hole on the side of the locking seat 83 communicates with the locking groove 86. The locking piece 84 is arranged in the locking groove 86. A limiting post 87 is provided on the bottom wall of the locking groove 86. A spring is arranged around the outer wall of the limiting post 87. A limiting slideway is provided at the bottom of the locking piece 84. The two ends of the spring on the outer wall of the limiting post 87 are respectively connected to the bottom wall of the locking groove 86 and the bottom wall of the above-mentioned limiting slideway. An arc-shaped locking groove is provided at the center position of the locking piece 84. The arc-shaped locking groove is arranged in the locking hole in the locking seat 83. Push plates extend outward from both ends of the arc-shaped locking groove in the locking piece 84. An unlocking pin 85 for pushing the push plate in the locking piece 84 to move is provided on the side walls of the lower housing 1 and the upper housing 2. The unlocking pin 85 extends inward through the side wall of the lower housing 1 and is provided with a push piece. A spring for preventing the unlocking pin 85 from moving in the direction of the lower housing 1 is provided on the outer wall of the lower housing 1. The setting method of the unlocking pin 85 in the upper housing 2 is the same as that of the unlocking pin 85 in the lower housing 1, so it will not be described again. During use, during the process of the moving sleeve 4 moving towards the fixed sleeve 3, the conical locking head in the locking pin 82 is inserted into the locking hole on the side of the locking seat 83, and presses the arc-shaped locking groove in the locking piece 84, causing the locking piece 84 to move away from the locking pin 82. At this time, the limiting post 87 is inserted into the limiting slideway in the locking piece 84 to limit the moving direction of the locking piece 84. At the same time, under the elastic force of the spring on the outer wall of the limiting post 87, the arc-shaped locking groove in the locking piece 84 clamps and fixes the conical locking head in the locking pin 82 in the locking hole on the side of the locking seat 83, thereby locking and fixing the covering position of the upper housing 2 and the lower housing 1. When it is necessary to open the upper housing 2 upward, press the unlocking pin 85. The push piece in the unlocking pin 85 contacts the push plate in the locking piece 84, thereby pushing the locking piece 84 to move away from the locking pin 82 to unlock the locking pin 82, making the upper housing 2 in a movable state.

[0036] When the present invention is in use, the cores in the first cable 52 are inserted into the fixed sleeve 3 in the two-way clamping assembly, and the cores in the second cable 51 are inserted into the movable sleeve 4 in the two-way clamping assembly. The upper housing 2 is covered downward. During the downward covering process of the upper housing 2, the clamping block 31 is pushed by the two-way pressing structure to fix the bottom of the core in the first cable 52, and the pressing block 41 is pushed by the two-way pressing structure to fix the bottom of the core in the second cable 51. At the same time, the end portions of the cores in the first cable 52 and the second cable 51 are pressed and fixed by the arc-shaped conductive plate 71 in the end connection assembly, and the cores of the first cable 52 and the second cable 51 are conductively connected through the conductive function of the arc-shaped conductive plate 71, thus completing the connection of the cable plug. Finally, the covering position of the upper housing 2 is locked by the automatic locking structure. This structure does not friction the cable cores during connection, ensuring the conductivity of the cable. Through the settings of the lower housing 1 and the upper housing 2, the influence of external environmental factors such as wind sand and dust on the conductivity of the cable connection end is effectively prevented, and the potential safety hazard caused by the accidental explosion of the cable connection end to the outside is also effectively prevented, improving the overall conductivity and safety performance of the cable.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Each component mentioned in the present invention is a common technology in the existing field. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic cable plug connection device, comprising a lower housing (1) and an upper housing (2) covering the upper part of the lower housing (1). One end of the upper housing (2) is hinged to the end of the lower housing (1). Mounting holes are provided at both end parts of the lower housing (1). Semi-circular slot holes are provided at both end parts of the upper housing (2). It is characterized in that, A two-way clamping assembly is installed inside the lower housing (1), and the bottom of the cores in the first cable (52) and the second cable (51) is fixed by the two-way clamping assembly. The two-way clamping assembly includes a fixed sleeve (3) and a movable sleeve (4). The fixed sleeve (3) is fixedly installed in the mounting hole at one end of the lower housing (1), and the movable sleeve (4) is slidably arranged in the mounting hole at the other end of the lower housing (1). Limiting holes that penetrate are provided at the axial positions of both the fixed sleeve (3) and the movable sleeve (4). A clamping block (31) is arranged inside the fixed sleeve (3), and a pressing block (41) is arranged inside the movable sleeve (4). A two-way pressing structure is arranged between the clamping block (31) and the pressing block (41). An end connection assembly is arranged in the fixed sleeve (3) to fixedly connect the ends of the cores of the first cable (52) and the second cable (51). An automatic locking structure is arranged at the covering position of the lower housing (1) and the upper housing (2).

2. The automatic cable plug connection device according to claim 1, characterized in that, A snap ring is formed outside the mounting hole on one side of the lower housing (1), and a sliding ring is provided inside the mounting hole on the other side of the lower housing (1). After the upper housing (2) is covered on the upper part of the lower housing (1), the slot holes at both ends of the upper housing (2) respectively cover the snap ring and the sliding ring at the end of the lower housing (1).

3. The automatic cable plug connection device according to claim 2, characterized in that, A slot is provided at one end of the fixed sleeve (3). The snap ring at the end of the lower housing (1) is clamped in the slot at the end of the fixed sleeve (3), so that the fixed sleeve (3) is fixedly installed in the mounting hole at one end of the lower housing (1). A cylindrical sliding sleeve is provided at one end of the movable sleeve (4), and the cylindrical sliding sleeve is slidably arranged in the sliding ring on the side of the lower housing (1).

4. An automatic cable plug connection device according to claim 3, characterized in that, A connecting rod (21) is rotatably connected between the movable sleeve (4) and the upper housing (2). One end of the connecting rod (21) is hinged to the outer wall of the movable sleeve (4), and the other end of the connecting rod (21) is hinged to the inner wall of the upper housing (2). When the upper housing (2) is covered on the upper part of the lower housing (1), the upper housing (2) exerts a forward thrust on the connecting rod (21) during the movement. When the connecting rod (21) moves forward, it drives the movable sleeve (4) to slide towards the fixed sleeve (3), so that the movable sleeve (4) is sleeved on the end of the fixed sleeve (3).

5. An automatic cable plug connection device according to claim 4, characterized in that A first inclined groove (33) is provided inside the fixed sleeve (3). The opening of the first inclined groove (33) gradually decreases towards the snap ring in the lower housing (1). A clamping block (31) is slidably arranged in the first inclined groove (33). The clamping block (31) includes a first clamping block and a second clamping block. The first clamping block and the second clamping block are symmetrically arranged in the first inclined groove (33). A wiring channel is provided between the first clamping block and the second clamping block. The first cable (52) passes through the wiring channel between the first clamping block and the second clamping block. A clamping space is also provided between the first clamping block and the second clamping block. When the first clamping block and the second clamping block move towards the snap ring, the clamping space between the first clamping block and the second clamping block gradually decreases, so that the first clamping block and the second clamping block clamp and fix the bottom of the core in the first cable (52).

6. The automatic cable plug connection device according to claim 5, characterized in that, Inside the moving sleeve (4), there is a second inclined groove (43). The opening of the second inclined groove (43) gradually decreases in the direction of the slip ring in the lower housing (1). A pressing block (41) is slidably arranged in the second inclined groove (43). The pressing block (41) includes a first pressing block and a second pressing block. The first pressing block and the second pressing block are symmetrically arranged in the second inclined groove (43). There is a wiring channel between the first pressing block and the second pressing block. The second cable (51) penetrates into the wiring channel between the first pressing block and the second pressing block. There is also a pressing space between the first pressing block and the second pressing block. When the first pressing block and the second pressing block move towards the slip ring direction, the pressing space between the first pressing block and the second pressing block gradually decreases, so that the first pressing block and the second pressing block clamp and fix the bottom of the core wire in the second cable (51).

7. The automatic cable plug connection device according to claim 6, wherein The bidirectional pressing structure includes a synchronous plate (6) and a limiting spring (62). At one end of the second inclined groove (43) far from the slip ring, a limiting cylinder extends outwards. The synchronous plate (6) is slidably arranged in the above-mentioned limiting cylinder. At one end of the synchronous plate (6) close to the pressing block (41), there is a positioning column (63). The limiting spring (62) is sleeved outside the positioning column (63). At the end of the side wall of the second inclined groove (43), there is a sliding hole (42). One end of the limiting spring (62) is fixedly connected to the synchronous plate (6), and the other end of the limiting spring (62) is fixedly connected to the outer wall of the sliding hole (42). The setting positions of the positioning column (63) and the sliding hole (42) correspond to each other. Under the elastic force of the positioning column (63), the positioning column (63) moves to the outside of the sliding hole (42). At one end of the synchronous plate (6) far from the positioning column (63), a connecting column (61) is arranged. The connecting column (61) extends towards the positioning column (63) after passing through the synchronous plate (6). The setting position of the connecting column (61) corresponds to the setting positions of the clamping block (31) and the pressing block (41).

8. An automatic cable plug connection device according to claim 7, characterized in that, The end connection assembly includes an arc-shaped conductive plate (71) which has a conductive function. An end sleeve body (32) extends outward from the end of the fixed sleeve (3). There is a fixed channel inside the end sleeve body (32). The number of the arc-shaped conductive plates (71) is two, and the two arc-shaped conductive plates (71) are symmetrically arranged in the fixed channel inside the end sleeve body (32). A sliding rod is provided on the upper part of the outer wall of the arc-shaped conductive plate (71), and a sliding groove is provided on the outer wall of the end sleeve body (32). The upper sliding rod of the arc-shaped conductive plate (71) passes through the sliding groove in the end sleeve body (32) and a moving beam (72) is provided at its end. After the moving beam (72) moves downward, it is embedded in the sliding groove on the outer wall of the end sleeve body (32). A thrust spring (73) is provided between the moving beam (72) and the sliding groove on the outer wall of the end sleeve body (32). Under the elastic force of the thrust spring (73), the moving beam (72) moves to the outside of the above-mentioned sliding groove, so that the arc-shaped conductive plate (71) remains in an open state. There is a triangular boss (44) on the inner wall of the limit cylinder in the moving sleeve (4).

9. The automatic cable plug connection device according to claim 8, characterized in that, The automatic locking structure includes a locking pin (82) and a locking piece (84). A connecting seat (81) protrudes outward from the side of the fixed sleeve (3). A locking seat (83) protrudes outward from the side of the moving sleeve (4) at a position corresponding to the connecting seat (81). The locking pin (82) is fixedly arranged inside the connecting seat (81). The end of the locking pin (82) has a conical locking head. A locking hole is provided on the side wall of the locking seat (83) corresponding to the locking pin (82). A through locking groove (86) is provided on the side of the locking seat (83). The locking hole on the side of the locking seat (83) is communicated with the locking groove (86). The locking piece (84) is arranged in the locking groove (86). A limiting post (87) is provided on the bottom wall of the locking groove (86). A spring is arranged around the outer wall of the limiting post (87). A limiting slideway is provided at the bottom of the locking piece (84). The two ends of the spring on the outer wall of the limiting post (87) are respectively connected to the bottom wall of the locking groove (86) and the bottom wall of the above-mentioned limiting slideway. An arc-shaped locking groove is provided at the central position of the locking piece (84), and this arc-shaped locking groove is arranged in the locking hole in the locking seat (83). Push plates extend outward from both ends of the arc-shaped locking groove in the locking piece (84). An unlocking pin (85) for pushing the push plate in the locking piece (84) to move is provided on the side walls of the lower shell (1) and the upper shell (2). The unlocking pin (85) passes through the side wall of the lower shell (1) and extends inward with a pushing piece. A spring for preventing the unlocking pin (85) from moving towards the lower shell (1) is provided on the outer wall of the lower shell (1). The unlocking pin (85) in the upper shell (2) is arranged in the same way as the unlocking pin (85) in the lower shell (1).

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