A cable interface device

Abstract

This invention relates to the field of cable technology, specifically to a cable splicing device, including a clamping base. The top of the clamping base has two symmetrically arranged splicing grooves. A splicing slider is slidably connected within each splicing groove. Each splicing slider has two symmetrically arranged synchronous grooves. A first synchronous slider and a second synchronous slider are slidably connected within each of the two synchronous grooves. One end of each of the first and second synchronous sliders extends out of the synchronous groove and is fixedly fitted with a triangular pressing block. A fixing plate is fixedly installed on the side of each pressing block that is close to each other. A pushing unit is provided on the side of each fixing plate that is close to each other. This invention designs a pushing unit that, by inserting a pin in the pushing groove into the cable's insulation layer, allows the pushing bar to drive the cable to move synchronously. Simultaneously, two fastening rings can tighten, thereby gathering the exposed, loose copper wires, solving the problem of loose copper wires being difficult to insert into copper tubes.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more particularly to a cable splicing device. Background Technology

[0002] A cable is a transmission conductor made up of multiple insulated conductors bonded together by a filler layer. Cables can be laid in various ways, such as overhead laying, underground laying, and shallow trench laying. Since a single cable cannot cover the area to be laid when laying over long distances, multiple cables are usually connected together before laying. Similarly, cable connection is also required when repairing damaged cables.

[0003] In existing technologies, the splicing of cables in shallow trenches is mostly done manually. This requires peeling off a section of the protective sheath from the cable end, then peeling off a section of the insulation from the ends of the multiple internal wires, and finally placing the exposed copper wires of the two wires into the same copper tube for splicing. After being peeled off, the copper wires inside the cable are in a loose state, making it difficult to bundle them up manually and stuff them into the copper tube. At the same time, the copper wire has low hardness, and it is difficult to apply force when stuffing it due to bending. This results in many copper wires not being stuffed into the copper tube and remaining exposed, requiring the stuffing process to be repeated multiple times, leading to low efficiency in the cable splicing process. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by providing a cable splicing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable splicing device includes a clamping base with a cover plate on top. The clamping base and the cover plate are fixedly connected by bolts. Two symmetrically arranged splicing grooves are opened on the top of the clamping base. A splicing slider is slidably connected in the splicing grooves. Two symmetrically arranged synchronous grooves are opened in the splicing sliders. The two sides of the synchronous grooves penetrate the surfaces of both sides of the splicing slider. A first synchronous slider and a second synchronous slider are slidably connected in the two synchronous grooves respectively. One end of the first synchronous slider extends out of a corresponding synchronous groove and is fixedly installed with a synchronous sleeve. One end of the second synchronous slider extends out of a corresponding synchronous groove and is fixedly installed with a synchronous rod. The end of the synchronous rod near the first synchronous slider is inserted into the synchronous sleeve. The ends of the first and second synchronous sliders away from the synchronous rod both extend out of the synchronous groove and are fixedly installed with triangular pressing blocks. A fixing plate is fixedly installed on the side of the two pressing blocks that are close to each other. A pushing unit is provided on the side of the two fixing plates that are close to each other.

[0007] The pushing unit consists of an arc-shaped push bar and an arc-shaped fastening ring. The push bar is fixedly mounted on the fixed plate, and the two push bars are installed in opposite directions. The two fastening rings are respectively fixedly mounted on the side of the two push bars that are far apart from each other. The bottom of the push bar is provided with a push groove, and several evenly distributed insert sleeves are rotatably connected in the push groove. Insert pins are fixedly connected to the outer wall of the insert sleeves.

[0008] In the aforementioned cable splicing device, the clamping base has two symmetrically arranged extrusion grooves, and a Y-shaped extrusion bracket is slidably connected in the extrusion grooves. Two symmetrically arranged pressure spring telescopic rods are fixedly installed on the extrusion brackets, and an arc-shaped pressure guide plate is fixedly installed at the telescopic ends of the two pressure spring telescopic rods.

[0009] In the aforementioned cable splicing device, a fastening slot is provided on the side of the push bar away from the fastening ring, and a release groove is provided inside the top of the push bar. An arc-shaped release bar is slidably connected in the release groove. A triangular support tooth is fixedly installed on the end of the release bar near the fastening ring by a bracket. A tooth groove is provided on the side of the push bar near the support tooth, and the tooth groove is connected to the fastening slot. Unlocking grooves are provided on the sides of the two pressing blocks that are close to each other. A movable unlocking plate is slidably connected in the unlocking groove. The end of the movable unlocking plate away from the unlocking groove extends out of the unlocking groove and is fixedly connected to the release bar.

[0010] In the above-mentioned cable docking device, a plug is fixedly installed at one end of the first synchronous slider. A fixed slot is provided on the inner wall of the synchronous slide groove near the first synchronous slider. The plug is inserted into the fixed slot. A limit through hole is provided on the plug. A limit groove is provided on the side of the docking slider near the synchronous sleeve. The limit groove is connected to the slot. A limit pin is inserted in the limit groove and passes through the limit through hole.

[0011] In the aforementioned cable splicing device, two symmetrically arranged crimping blocks are fixedly installed on the top of the clamping base. The top of the crimping blocks has a crimping groove, and the two sides of the crimping groove penetrate the surfaces of both sides of the crimping block. A downward pressure spring telescopic rod is fixedly installed at the bottom of the cover plate. A copper tube pressure block is fixedly installed at the telescopic end of the downward pressure spring telescopic rod. Two symmetrically arranged downward pressure blocks are fixedly installed at the bottom of the copper tube pressure block. The bottom of the downward pressure block has a downward pressure groove, and the two sides of the crimping groove penetrate the surfaces of both sides of the crimping block.

[0012] In the aforementioned cable splicing device, a number of evenly spaced anti-detachment pins are fixedly installed on the inner ring wall of the clamping guide plate.

[0013] In the aforementioned cable splicing device, a one-way blocking block is fixedly connected to the outer wall of the insert sleeve, and an elastic pull rope is fixedly installed on the side of the one-way blocking block away from the insert pin. The end of the elastic pull rope away from the one-way blocking block is fixedly installed on the inner wall of the push groove.

[0014] In the aforementioned cable splicing device, a plurality of uniformly distributed, triangular-structured No. 1 locking teeth are fixedly installed on the inner ring wall of the fastening ring, and a plurality of uniformly distributed, triangular-structured No. 2 locking teeth are fixedly installed on the inner wall of the fastening slot. The No. 1 and No. 2 locking teeth have the same structure and are staggered. A telescopic sleeve is fixedly installed inside the fastening slot, and a spring shift block is fixedly connected to the telescopic end of the telescopic sleeve. A locking tooth spring is sleeved on the outer wall of the telescopic sleeve, and the two ends of the locking tooth spring abut against the spring shift block and the inner wall of the fastening slot, respectively.

[0015] Compared with existing technologies, the advantages of this cable splicing device are:

[0016] 1. The present invention designs a pushing unit, which pushes the push bar in the pushing unit against the cable insulation layer by pushing the pressing block, so that the pin in the push groove pierces into the insulation layer of the cable, and the pin drives the cable to move synchronously. At the same time, the two fastening rings can tighten to gather the loose copper wire exposed after the insulation layer is peeled off, thus solving the problem that the loose copper wire is difficult to stuff into the copper tube.

[0017] 2. The present invention designs a pressure guide plate. By inserting one end of the pressure guide plate into the copper tube, and then inserting the fastening ring in the pushing unit into the copper tube through the pressure guide plate, the loose copper wires are further gathered during the process of the fastening ring being squeezed by the inner wall of the pressure guide plate, thus avoiding the copper wires being exposed. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is the invention Figure 1 A magnified view of the structure at point A in the diagram;

[0020] Figure 3 This is the invention Figure 1 A magnified schematic diagram of the local structure at point B;

[0021] Figure 4 This is a three-dimensional structural diagram of the synchronizing sleeve and synchronizing rod of the present invention;

[0022] Figure 5 This is a cross-sectional structural schematic diagram of the lower pressing block and the pressing block of the present invention;

[0023] Figure 6 This is a three-dimensional cross-sectional view of the beam compression guide plate of the present invention;

[0024] Figure 7 This is a cross-sectional structural schematic diagram of the push bar and fastening ring of the present invention;

[0025] Figure 8 This is the invention Figure 7 A magnified schematic diagram of the local structure at point C;

[0026] Figure 9 This is the invention Figure 7 A magnified schematic diagram of the local structure at point D;

[0027] Figure 10 This is a cross-sectional structural schematic diagram of the supporting tooth and tooth groove of the present invention;

[0028] Figure 11 This is a cross-sectional structural schematic diagram of the pin and push groove of the present invention;

[0029] Figure 12 This is a cross-sectional view of the insert and fixing slot of the present invention;

[0030] Figure 13 This is a cross-sectional view of the release groove of the present invention.

[0031] In the diagram: 1. Clamping base; 102. Cover plate; 104. Extrusion groove; 105. Extrusion bracket; 2. Docking groove; 3. Docking slider; 301. Synchronous groove; 302. Synchronous slider No. 1; 303. Synchronous slider No. 2; 4. Synchronous sleeve; 5. Synchronous rod; 6. Pressing block; 7. Fixing plate; 8. Pushing unit; 801. Push bar; 802. Fastening ring; 803. Push groove; 804. Insert shaft sleeve; 805. Gear groove; 806. Fastening slot; 9. Pin; 10. One-way blocking block; 11. Release groove; 12. Release bar; 13. 14. Supporting tooth; 15. Unlocking groove; 16. Moving unlocking plate; 17. Fixed slot; 18. Insert block; 19. Limiting through hole; 20. Limiting groove; 21. Limiting pin; 22. Pressure spring telescopic rod; 23. Pressure guide plate; 24. Pressing block; 2401. Pressing groove; 25. Downward pressing spring telescopic rod; 26. Copper tube pressing block; 2601. Downward pressing block; 2602. Downward pressing groove; 27. Anti-drop pin; 28. Elastic pull rope; 29. ​​No. 1 tooth; 30. No. 2 tooth; 31. Telescopic sleeve; 32. Spring moving block; 33. Tooth spring. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Reference Figures 1-13A cable splicing device includes a clamping base 1, with a cover plate 102 on top of the clamping base 1. The clamping base 1 and the cover plate 102 are fixedly connected by bolts. Two symmetrically arranged splicing grooves 2 are opened on the top of the clamping base 1. A splicing slider 3 is slidably connected in the splicing grooves 2. Two symmetrically arranged synchronous grooves 301 are opened in the splicing slider 3. The two sides of the synchronous grooves 301 penetrate the two sides of the splicing slider 3. A first synchronous slider 302 and a second synchronous slider 303 are slidably connected in the two synchronous grooves 301 respectively. One end of the first synchronous slider 302 extends out of the corresponding synchronous groove 301 and is fixedly installed with a synchronous sleeve. 4. One end of the second synchronous slider 303 extends into a corresponding synchronous groove 301 and is fixedly mounted with a synchronous rod 5. The end of the synchronous rod 5 closest to the first synchronous slider 302 is inserted into the synchronous sleeve 4. The ends of both the first and second synchronous sliders 302, away from the synchronous rod 5, extend into synchronous grooves 301 and are fixedly mounted with triangular pressing blocks 6. Fixing plates 7 are fixedly mounted on the sides of the two pressing blocks 6 that are close to each other. Pushing units 8 are provided on the sides of the two fixing plates 7 that are close to each other. The pushing unit 8 consists of an arc-shaped push bar 801 and an arc-shaped fastening ring 802. The push bar 801 is fixedly mounted on the fixing plate 7. The two push bars 801 are installed in opposite directions, and the two fastening rings 802 are respectively fixedly installed on the opposite sides of the two push bars 801. A push groove 803 is provided at the bottom of each push bar 801, and several evenly distributed insert sleeves 804 are rotatably connected within the push groove 803. Insert pins 9 are fixedly connected to the outer wall of each insert sleeve 804. A threaded sleeve is fixedly installed on the top of the clamping base 1, and a cover plate 102 is provided on the top of the clamping base 1. The clamping base 1 is fixedly connected to the cover plate 102 by bolts. Through the synchronous sleeve 4 and the synchronous rod 5 inserted therein, the first synchronous slider 302 and the second synchronous slider 303 move horizontally and in the same direction within the synchronous groove 301. The push bar 801 is tilted in the opposite direction to the vertical direction. By pressing the two pressing blocks 6, the pin 9 on the push bar 801 is inserted into the insulation layer of a single cable. The insert sleeve 804 allows it to rotate at a certain angle to facilitate its removal. After the pin 9 is inserted into the insulation layer, the two fastening rings 802 will tighten the edge of the copper wire. At this time, the docking slider 3 can be moved to move towards the copper tube. During the process of pressing the push bar 801 towards the cable, the two fastening rings 802 will tighten each other, which can gather the loose copper wire together and tighten the copper wire. An arc-shaped cable support plate is fixedly installed at the end of the push bar 801 near the fixing plate 7 to support the cable.

[0035] The clamping base 1 has two symmetrically arranged extrusion grooves 104. A Y-shaped extrusion bracket 105 is slidably connected in the extrusion grooves 104. Two symmetrically arranged pressure spring telescopic rods 22 are fixedly installed on the extrusion bracket 105. The telescopic ends of the two pressure spring telescopic rods 22 are fixedly installed with arc-shaped clamping guide plates 23. Before connecting the cable, the extrusion bracket 105 is pushed to insert the two clamping guide plates 23 into the copper tube, which can be used to fix the copper tube. The inner wall of the clamping guide plate 23 has an arc-shaped structure, and the diameter of the inner wall of the clamping guide plate 23 is larger on the outside and smaller on the inside. During the process of the push bar 801 driving the cable into the clamping guide plate 23, the fastening ring 802 will be squeezed by the curved inner wall of the clamping guide plate 23. At this time, the fastening ring 802 will be further tightened to make the copper wire more concentrated. A limit block is inserted in the extrusion groove 104 to abut against the extrusion bracket 105.

[0036] A fastening slot 806 is provided on the side of the push bar 801 away from the fastening ring 802. A release groove 11 is provided in the top of the push bar 801. An arc-shaped release bar 12 is slidably connected in the release groove 11. A triangular support tooth 13 is fixedly installed on the end of the release bar 12 near the fastening ring 802 by a bracket. A tooth groove 805 is provided on the side of the push bar 801 near the support tooth 13. The tooth groove 805 is connected to the fastening slot 806. Unlocking slide grooves 14 are provided on the sides of the two pressing blocks 6 that are close to each other. A movable unlocking plate 15 is slidably connected in the unlocking slide groove 14. The end of the movable unlocking plate 15 away from the unlocking slide groove 14 extends out of the unlocking slide groove 14 and is fixedly connected to the release bar 12. A return spring is fixedly installed inside the 4. The end of the return spring away from the fixed plate 7 is fixedly connected to the movable unlocking plate 15. It is used to abut the movable unlocking plate 15 in the natural state. During the process of the fastening ring 802 entering the pressure guide plate 23, one end of the fastening ring 802 will enter the corresponding fastening slot 806. When the push bar 801 is pulled out after the copper wire has completely entered the copper tube, the movable unlocking plate 15 can be pulled away from the pressure guide plate 23 to drive the release bar 12 to move in the release groove 11. An inclined tooth surface is opened on one side of the fastening ring 802. During the movement of the release bar 12, the supporting tooth 13 will support the fastening ring 802, which can expand the fastening ring 802 to facilitate the pull-out of the push bar 801.

[0037] A plug 17 is fixedly installed at one end of the first synchronous slider 302. A fixed slot 16 is provided on the inner wall of the synchronous slide groove 301 near the first synchronous slider 302. The plug 17 is inserted into the fixed slot 16. A limit through hole 18 is provided on the plug 17. A limit groove 19 is provided on the side of the docking slider 3 near the synchronous sleeve 4. The limit groove 19 is connected to the slot. A limit pin 20 is inserted into the limit groove 19 and passes through the limit through hole 18. After the pin 9 is inserted into the cable insulation layer by pushing the pressing block 6, the plug 17 is inserted into the cable insulation layer. 17 will enter the fixed slot 16. At this time, the limiting pin 20 will pass through the limiting slot 19 and the limiting through hole 18, which can lock the first synchronous slider 302 and the second synchronous slider 303, and prevent the push bar 801 from loosening when it is pushed in or pulled out. A reset spring is fixedly installed in the synchronous slide groove 301. The two reset springs are fixedly connected to the first synchronous slider 302 and the second synchronous slider 303 respectively at their close ends, and are used to press the block 6 to reset when the first synchronous slider 302 and the second synchronous slider 303 are pulled.

[0038] Two symmetrically arranged crimping blocks 24 are fixedly installed on the top of the clamping base 1. Each crimping block 24 has a crimping groove 2401 on its top, with both sides of the crimping groove 2401 penetrating the surfaces of both sides of the crimping block 24. A downward-pressing spring telescopic rod 25 is fixedly installed on the bottom of the cover plate 102. A copper tube pressing block 26 is fixedly installed at the telescopic end of the downward-pressing spring telescopic rod 25. Two symmetrically arranged downward-pressing blocks 2601 are fixedly installed on the bottom of the copper tube pressing block 26. Each downward-pressing block 2601 has a downward-pressing groove 2602 on its bottom, with both sides of the crimping groove 2401 penetrating the surfaces of both sides of the crimping block 24. Two pressing blocks 24 are fixedly installed on opposite sides of each other with copper tube supports. The top of the copper tube supports is arc-shaped to place the copper tubes symmetrically. A cylinder is fixedly installed on the top of the base. A hemispherical top block is fixedly installed on the telescopic end of the cylinder. A lever is hinged to the bottom of the cover plate 102. The end of the lever away from the cylinder is hinged to the copper tube pressing block 26. The downward spring telescopic rod 25 is used to make the lower pressing block 2601 abut against the copper tube in the natural state, which can stabilize the copper tube. Activating the cylinder can make the top block lift the lever. The pressing block 24 cooperates with the lower pressing block 2601 to press the two ends of the copper tube together.

[0039] Several evenly spaced anti-drop pins 27 are fixedly installed on the inner ring wall of the compression guide plate 23. When the copper wire enters the copper tube, during the process of pulling out the push bar 801, the anti-drop pins 27 will insert into and abut against the cable insulation layer to prevent the cable from being pulled out along with it.

[0040] A one-way blocking block 10 is fixedly connected to the outer wall of the insert sleeve 804. An elastic pull rope 28 is fixedly installed on the side of the one-way blocking block 10 away from the pin 9. The end of the elastic pull rope 28 away from the one-way blocking block 10 is fixedly installed on the inner wall of the push groove 803. The elastic pull rope 28 is used to pull the one-way blocking block 10 to make it abut against the groove of the pin 9. When the pin 9 is inserted into the cable insulation layer at an inclined angle, the one-way blocking block 10 abuts against the groove of the pin 9 to prevent the pin 9 from rotating during the insertion process. A roller is rotatably connected to the bottom of the push bar 801 to reduce the friction between it and the cable insulation layer during the pulling process.

[0041] A number of evenly distributed, triangular-structured first-order locking teeth 29 are fixedly installed on the inner ring wall of the fastening ring 802. A number of evenly distributed, triangular-structured second-order locking teeth 30 are fixedly installed on the inner wall of the fastening slot 806. The first-order locking teeth 29 and the second-order locking teeth 30 have the same structure and are staggered. A telescopic sleeve 31 is fixedly installed inside the fastening slot 806. A spring-loaded moving block 32 is fixedly connected to the telescopic end of the telescopic sleeve 31. A locking tooth spring is sleeved on the outer wall of the telescopic sleeve 31. Spring 33, the two ends of the retaining spring 33 abut against the inner wall of spring shift block 32 and fastening slot 806 respectively. The bottom of spring shift block 32 is rotatably connected to a ball. The fastening ring 802 is fixedly installed with an inclined retaining tooth on the side near the ball. When the fastening ring 802 enters the fastening slot 806, the ball will abut against the inclined surface of the inclined retaining tooth, and will be squeezed downward under the action of retaining spring 33. At this time, the first retaining tooth 29 and the second retaining tooth 30 will abut against each other, which will play a one-way locking role for the fastening ring 802.

[0042] The working principle and usage of this invention are explained in detail below: When in use, the cable can be placed in the cable tray first, and then a pressing block 6 can be pushed. Since the synchronizing rod 5 is inserted into the synchronizing sleeve 4, the first synchronizing slider 302 and the second synchronizing slider 303 will move synchronously and drive the other pressing block 6 to move synchronously along the synchronizing slide groove 301. The pressing block 6 drives the inclined pin 9 in the push groove 803 to be inserted into the insulation layer along the inclined direction of the synchronizing slide groove 301 through the fixing plate 7. After the pin 9 is inserted, the limiting pin 20 is inserted into the limiting groove 19 so that it passes through the limiting through hole 18 in the insert block 17, which can lock the first synchronizing slider 302 and the second synchronizing slider 303.

[0043] After the pin 9 is inserted into the insulation layer, the copper tube pressing block 26 can be moved upward by the downward pressing spring telescopic rod 25, and then the copper tube can be placed in the crimping groove 2401 through the copper tube bracket. At this time, the pressing bracket 105 can be pushed to insert the end of the clamping guide plate 23 away from the push bar 801 into the copper tube. Then, the limiting block is inserted into the pressing groove 104 to lock the pressing bracket 105. At this time, the copper tube pressing block 26 is released so that the lower pressing block 2601 abuts against the copper tube, which can fix the copper tube.

[0044] After the copper tube is fixed, the sliding block 3 is pushed to move in the sliding groove 2, so that the fastening ring 802 in the pushing unit 8 enters the two pressure guide plates 23. The fastening ring 802 will be squeezed by the inner wall of the pressure guide plate 23 and thus shrink. The shrinkage of the fastening ring 802 will drive the copper wire at the end to gather further. One end of the fastening ring 802 will enter the corresponding fastening slot 806. At this time, the ball will abut against the tooth surface of the fastening ring 802 under the action of the tooth spring 33, so that the fastening ring 802 is squeezed downward. During the squeezing process, the first tooth 29 and the second tooth 30 will continuously abut, which can lock the fastening ring 802 in one direction.

[0045] After the copper wire is fully inserted into the copper tube, the movable unlocking plate 15 can be pulled to compress the reset spring. The movable unlocking plate 15 pulls the release bar 12, causing the support tooth 13 to abut against the tooth surface of the fastening ring 802 through the tooth groove 805. This causes the fastening ring 802 to be lifted upwards and, through the telescopic sleeve 31, to compress the tooth spring 33, separating the first tooth 29 and the second tooth 30. The fastening ring 802 will expand, opening the two pressure guide plates 23 via the pressure spring telescopic rod 22. At this point, the docking slider 3 can be pulled to move the fastening ring 802 away from the pressure guide plates 23. The anti-drop pin 27 inside 3 will lock the insulation layer of the cable to prevent the cable from being pulled out at the same time. When the docking slider 3 is pulled, the pin 9 in the pin 9 slot will rotate at a certain angle in the direction parallel to the cable and disengage from the cable insulation layer. At this time, the elastic pull rope 28 will be stretched to one end. Under the action of the roller, the push bar 801 can be pulled out under the action of low friction. At this time, the limit pin 20 can be pulled out. The first synchronous slider 302 and the second synchronous slider 303 are pulled up under the action of the reset spring, so that the pressing block 6 drives the push bar 801 away from the cable through the fixing plate 7.

[0046] Finally, the cylinder can be activated to push the lever with the top block at the cylinder extension end. At the same time, the copper tube pressing block 26 drives the lower pressing block 2601 to press down, so that the lower pressing groove 2602 and the crimping groove 2401 squeeze the two ends of the copper tube. After crimping, the copper can be removed. Repeat the above steps to connect the subsequent cables inside the cable.

[0047] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable splicing device, comprising a clamping base (1), characterized in that: The clamping base (1) is provided with a cover plate (102) on its top. The clamping base (1) and the cover plate (102) are fixedly connected by bolts. The top of the clamping base (1) is provided with two symmetrically arranged docking grooves (2). A docking slider (3) is slidably connected in the docking grooves (2). Two symmetrically arranged synchronous grooves (301) are provided in the docking slider (3). The two sides of the synchronous grooves (301) penetrate the surfaces of both sides of the docking slider (3). A first synchronous slider (302) and a second synchronous slider (303) are slidably connected in the two synchronous grooves (301) respectively. One end of the first synchronous slider (302) extends out a corresponding synchronous slider. The groove (301) is fixedly installed with a synchronous sleeve (4). One end of the second synchronous slider (303) extends out of the corresponding synchronous groove (301) and is fixedly installed with a synchronous rod (5). The end of the synchronous rod (5) near the first synchronous slider (302) is inserted into the synchronous sleeve (4). The ends of the first synchronous slider (302) and the second synchronous slider (303) away from the synchronous rod (5) both extend out of the synchronous groove (301) and are fixedly installed with a triangular pressing block (6). The two pressing blocks (6) are fixedly installed with a fixing plate (7) on the side that is close to each other. The two fixing plates (7) are provided with a pushing unit (8) on the side that is close to each other. The pushing unit (8) consists of an arc-shaped push bar (801) and an arc-shaped fastening ring (802). The push bar (801) is fixedly installed on the fixing plate (7). The two push bars (801) are installed in opposite directions. The two fastening rings (802) are respectively fixedly installed on the side of the two push bars (801) that are far apart from each other. The bottom of the push bar (801) is provided with a push groove (803). Several evenly distributed insert sleeves (804) are rotatably connected in the push groove (803). Insert pins (9) are fixedly connected to the outer wall of the insert sleeves (804). The clamping base (1) has two symmetrically arranged extrusion grooves (104), and a Y-shaped extrusion bracket (105) is slidably connected in the extrusion grooves (104). Two symmetrically arranged pressure spring telescopic rods (22) are fixedly installed on the extrusion bracket (105), and an arc-shaped pressure guide plate (23) is fixedly installed at the telescopic ends of the two pressure spring telescopic rods (22). Two symmetrically arranged pressing blocks (24) are fixedly installed on the top of the clamping base (1). The pressing blocks (24) have pressing grooves (2401) on their tops. The pressing grooves (2401) penetrate the surfaces of the pressing blocks (24) on both sides respectively. A downward pressure spring telescopic rod (25) is fixedly installed at the bottom of the cover plate (102). A copper tube pressing block (26) is fixedly installed at the telescopic end of the downward pressure spring telescopic rod (25). Two symmetrically arranged downward pressing blocks (2601) are fixedly installed at the bottom of the copper tube pressing block (26). A downward pressing groove (2602) is opened at the bottom of the downward pressing block (2601). The pressing grooves (2401) penetrate the surfaces of the pressing blocks (24) on both sides respectively.

2. The cable splicing device according to claim 1, characterized in that: The push bar (801) has a fastening slot (806) on the side away from the fastening ring (802). A release groove (11) is provided in the top of the push bar (801). An arc-shaped release bar (12) is slidably connected in the release groove (11). A triangular support tooth (13) is fixedly installed on the end of the release bar (12) near the fastening ring (802) by a bracket. A tooth groove (805) is provided on the side of the push bar (801) near the support tooth (13). The tooth groove (805) is connected to the fastening slot (806). An unlocking slide groove (14) is provided on the side of the two pressing blocks (6) that are close to each other. A movable unlocking plate (15) is slidably connected in the unlocking slide groove (14). The end of the movable unlocking plate (15) away from the unlocking slide groove (14) extends out of the unlocking slide groove (14) and is fixedly connected to the release bar (12).

3. The cable splicing device according to claim 1, characterized in that: One end of the first synchronous slider (302) is fixedly installed with a plug (17). A fixed slot (16) is provided on the inner wall of the synchronous slide groove (301) and on the side close to the first synchronous slider (302). The plug (17) is inserted into the fixed slot (16). A limit through hole (18) is provided on the plug (17). A limit groove (19) is provided on the side of the docking slider (3) close to the synchronous sleeve (4). The limit groove (19) is connected to the slot. A limit pin (20) is inserted in the limit groove (19). The limit pin (20) passes through the limit through hole (18).

4. A cable splicing device according to claim 1, characterized in that: The inner ring wall of the pressure guide plate (23) is fixedly equipped with a number of evenly distributed anti-dropping pins (27).

5. A cable splicing device according to claim 1, characterized in that: A one-way blocking block (10) is fixedly connected to the outer wall of the insert sleeve (804). An elastic pull rope (28) is fixedly installed on the side of the one-way blocking block (10) away from the insert pin (9). The end of the elastic pull rope (28) away from the one-way blocking block (10) is fixedly installed on the inner wall of the push groove (803).

6. A cable splicing device according to claim 2, characterized in that: The inner ring wall of the fastening ring (802) is fixedly equipped with several uniformly distributed first-type locking teeth (29) in a triangular structure. The inner wall of the fastening slot (806) is fixedly equipped with several uniformly distributed second-type locking teeth (30) in a triangular structure. The first-type locking teeth (29) and the second-type locking teeth (30) have the same structure and are staggered. A telescopic sleeve (31) is fixedly installed inside the fastening slot (806). A spring shift block (32) is fixedly connected to the telescopic end of the telescopic sleeve (31). A locking tooth spring (33) is sleeved on the outer wall of the telescopic sleeve (31). The two ends of the locking tooth spring (33) abut against the spring shift block (32) and the inner wall of the fastening slot (806), respectively.

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