Electrical wiring insulation protection device

Abstract

The invention relates to the field of cables, and discloses an electrical wiring insulation protection device which is characterized in that a containing cavity for containing a cable is formed in the middle of a protection sleeve main body, end sleeves are arranged at the two ends of the protection sleeve main body, and a gas protection device is arranged in the radial direction of the protection sleeve main body; the inner side wall of the end sleeve drives the clamping block to clamp a cable through the screw rod, and meanwhile, the clamping block drives the piston structure to move so as to discharge gas in the piston cavity into the air bag, and the air bag expands to extrude the sealing ring so as to seal the accommodating cavity; the gas protection device extracts air in the containing cavity and inputs protection gas into the containing cavity. The position of the cable is stabilized through the sealing ring and the clamping block, sealing of the containing cavity is achieved, external substances are prevented from entering the containing cavity, it can be guaranteed that the containing cavity is filled with protective gas in cooperation with the gas protection device, and therefore insulation protection of the cable connecting position is achieved, and safety and stability of the cable connecting position are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of electrical wiring protection technology, and in particular to an electrical wiring insulation protection device. Background Technology

[0002] In the electrical field, when two cables need to be connected, the wire cores inside the cables need to be connected to each other first. Currently, most thick cables use the distributed connection method to achieve the connection between the two wire cores. After the wire cores are connected, the exposed parts of the wire cores are tightly bound with insulating tape. Finally, a wiring insulation protection device is installed at the insulating tape to prevent the insulating tape from being damaged.

[0003] However, the existing electrical wiring insulation protection device has poor sealing between the wire and the cable, which makes it easy for some adverse external factors to cause corrosion at the connection between the two cables, affecting the connection status between the cables. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to provide better protection for cable connection. In order to solve the above technical problem, the present invention provides an electrical wiring insulation protection device, including a protective sleeve body, a receiving cavity for accommodating the cable in the middle of the protective sleeve body, and end sleeves coaxially provided at both ends of the protective sleeve body in the axial direction. The end sleeves are provided with clamping cavities inside, and a gas protection device is provided in the radial direction of the protective sleeve body.

[0005] The inner wall of the end sleeve is provided with a threaded groove, a piston chamber, and a sealing mounting groove in sequence along the direction close to the main body of the protective sleeve. A screw is movably connected in the threaded groove. The screw extends radially along the main body of the protective sleeve. One end of the screw is located in the clamping cavity and is fixedly connected to a clamping block. The clamping block is used to clamp the cable. A piston structure is provided in the piston chamber. One end of the piston structure extends out of the piston chamber and is fixedly connected to the clamping block. An airbag and a sealing ring are provided in the sealing mounting groove. A connecting pipe is provided between the airbag and the piston chamber. The connecting pipe is used to connect the airbag and the piston chamber. The airbag is used to compress the sealing ring so that the sealing ring abuts against the cable and achieves the sealing of the accommodating cavity.

[0006] The gas protection device includes an air extraction module and a gas delivery module. The air extraction module is used to extract air from the accommodating cavity, and the gas delivery module is used to supply protective gas into the accommodating cavity.

[0007] Preferably, multiple screws, clamps, piston structures, and airbags are evenly arranged around the axis of the protective sleeve body within the end sleeve.

[0008] Preferably, the protective sleeve body has a plurality of slots on one end along its axial direction, and the end sleeve on the side of the protective sleeve body with the slots has a plug corresponding to the slots. The plug is disposed in the slots, the protective sleeve body and the end sleeve with the plug are detachably connected, and a limiting component is provided between the protective sleeve body and the plug.

[0009] Preferably, the limiting component includes an mounting sleeve, a connecting sleeve, and a positioning structure. The connecting sleeve and the mounting sleeve are both coaxially arranged with the protective sleeve body, and the mounting sleeve and the connecting sleeve are both fixedly connected to the protective sleeve body. A storage groove is provided between the mounting sleeve and the connecting sleeve, and the positioning structure is placed in the storage groove.

[0010] The connecting sleeve is provided with a movable groove corresponding to the slot;

[0011] The positioning structure includes a driving component and a positioning component. The positioning component includes a positioning rod extending in the radial direction of the protective sleeve. One end of the positioning rod passes through the moving groove and is inserted into the slot, and engages with the insert block to restrict the movement of the insert block. The driving component is used to drive the positioning rod to move in the radial direction of the protective sleeve body.

[0012] Preferably, the driving component includes a driving sleeve and a driving screw. The driving sleeve has an inclined surface on the side facing the connecting sleeve, and the inclined surface abuts against the positioning rod. The driving screw is rotatably connected to the mounting sleeve, and the driving screw is drively connected to the driving sleeve to drive the driving sleeve to move along the axial direction of the protective sleeve body.

[0013] The positioning rod includes a top post and a bottom post that are fixedly connected. One end of the top post extends out of the moving groove and abuts against the inclined surface. One end of the bottom post is used to insert into the slot and cooperate with the insert block. A support spring is also provided in the moving groove. The two ends of the support spring abut against the top post and the inner sidewall of the moving groove, respectively.

[0014] Preferably, multiple movable slots are arranged circumferentially around the axis of the protective sleeve body.

[0015] Preferably, an air box is fixedly connected to the side of the mounting sleeve away from the main body of the protective sleeve, and a connecting groove is formed between the air box and the mounting sleeve. The connecting groove is provided with a transmission component, the air extraction module, and the air delivery module.

[0016] The air box is connected to the air delivery module, the air delivery module is also connected to the accommodating cavity, the air extraction module is connected to the accommodating cavity, and the transmission component is connected to the air delivery module and the air extraction module in a transmission connection.

[0017] The transmission component includes a transmission lead screw, a first rack, and a second rack that extend axially along the main body of the protective sleeve.

[0018] The first rack is disposed on the side of the drive sleeve away from the positioning rod, and the first rack is connected to the transmission screw to drive the transmission screw to rotate;

[0019] The transmission screw is rotatably connected to the mounting sleeve, and the transmission screw is also connected to the second rack to drive the second rack to move along the axial direction of the protective sleeve body;

[0020] The second rack is connected to the gas supply module and the gas extraction module in a driving connection to drive the gas supply module and the gas extraction module to operate.

[0021] Preferably, the air extraction module includes a first piston cylinder and a first drive box fixedly disposed in the connecting groove;

[0022] A first reciprocating screw is rotatably connected inside the first drive box. One end of the first reciprocating screw is connected to a first drive rod. The first drive rod extends along the radial direction of the protective sleeve body. The end of the first drive rod passes through the first drive box and is provided with a first one-way bearing. A first drive gear is sleeved on the outside of the first one-way bearing. The first drive gear is used to mesh with the second rack.

[0023] A first piston rod is slidably connected inside the first piston cylinder. One end of the first piston rod passes through the first piston cylinder and is threadedly connected to the first reciprocating screw. The first reciprocating screw is used to drive the first piston rod to reciprocate within the first piston cylinder. One end of the first piston cylinder is also connected to a first fixed tube and a second fixed tube. A one-way valve is provided between the first piston cylinder and both the first fixed tube and the second fixed tube. The end of the second fixed tube away from the first piston cylinder extends to the outside of the mounting sleeve. The end of the first fixed tube away from the first piston cylinder is connected to the receiving cavity.

[0024] Preferably, the gas delivery module includes a second drive box and a second piston cylinder;

[0025] The second drive box is rotatably connected to a second reciprocating screw. One end of the second reciprocating screw is driven to a second drive rod. The second drive rod extends along the radial direction of the protective sleeve body. One end of the second drive rod is provided with a second one-way bearing, and a second drive gear is driven to it through the second one-way bearing. The second drive gear is used to mesh with the second rack.

[0026] A second piston rod is slidably connected inside the second piston cylinder. One end of the second piston rod passes through the second piston cylinder and is threadedly connected to the second reciprocating screw. The second reciprocating screw is used to drive the second piston rod to reciprocate within the second piston cylinder. One end of the second piston cylinder is also connected to a third fixed pipe and a fourth fixed pipe. A one-way valve is provided between the second piston cylinder and the third fixed pipe and the fourth fixed pipe. The end of the fourth fixed pipe away from the second piston cylinder is connected to the air box, and the end of the third fixed pipe away from the second piston cylinder is connected to the receiving cavity.

[0027] Preferably, it also includes a recycling module, which includes a third drive box, a third piston cylinder, and a linkage device;

[0028] A third reciprocating screw is rotatably connected inside the third drive box. One end of the third reciprocating screw is drivenly connected to a third drive rod. The third drive rod extends along the radial direction of the protective sleeve body. A third one-way bearing is provided at the end of the third drive rod. The third one-way bearing is drivenly connected to the linkage device.

[0029] A third piston rod is slidably connected inside the third piston cylinder. One end of the third piston rod passes through the third piston cylinder and is threadedly connected to the third reciprocating screw. The third reciprocating screw is used to drive the third piston rod to reciprocate within the third piston cylinder. One end of the third piston cylinder is also connected to a fifth fixed pipe and a sixth fixed pipe. A one-way valve is provided between the second piston cylinder and both the fifth and sixth fixed pipes. The end of the fifth fixed pipe away from the third piston cylinder is connected to the air box, and the end of the sixth fixed pipe away from the third piston cylinder is connected to the receiving cavity.

[0030] The linkage device includes a drive shaft, one end of which is provided with a second drive gear for meshing with the second rack; the other end of the linkage device is also provided with a third pulley and a fourth pulley, a first pulley is provided on the outer side of the second one-way bearing corresponding to the third pulley, and a second pulley is provided on the outer side of the third one-way bearing corresponding to the fourth pulley, and a transmission belt is provided between the first pulley and the third pulley and between the second pulley and the fourth pulley.

[0031] Compared with the prior art, the electrical wiring insulation protection device provided in this embodiment of the invention has the following advantages:

[0032] In this embodiment, after the cable connection passes through the end sleeve, it is placed in the receiving cavity of the protective sleeve body. Then, the screw is turned, causing the clamping block in the clamping cavity to move radially along the protective sleeve body. The clamping block abuts against and clamps the cable, fixing its position. When subjected to external force, it can prevent the cable connection from being stressed, thereby ensuring the stability of the cable connection structure. In addition, the clamping block will also drive the piston structure in the piston cavity to move, thereby venting the gas in the piston cavity into the air bladder through the connecting pipe. This causes the air bladder to expand and compress the sealing ring. This not only further stabilizes the cable position by increasing the friction between the sealing ring and the cable, but also seals the receiving cavity, preventing external substances from entering it. Combined with the gas protection device, this ensures that the receiving cavity is filled with protective gas, thereby achieving insulation protection for the cable connection and ensuring the safety and stability of the cable connection. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0034] Figure 2 This is the present invention. Figure 1 A partial structural diagram at point A in the middle;

[0035] Figure 3 This is the present invention. Figure 1 A schematic diagram of the local structure at point B;

[0036] Figure 4 This is the present invention. Figure 1 A partial structural diagram of the central air extraction module;

[0037] Figure 5 This is the present invention. Figure 4 A schematic diagram of the local structure at point C;

[0038] Figure 6 This is the present invention. Figure 4 A schematic diagram of the local structure at point D.

[0039] In the diagram: 1. Protective sleeve body; 11. Receiving cavity; 12. Slot; 13. Limiting component; 131. Mounting sleeve; 132. Connecting sleeve; 1321. Moving slot; 133. Storage slot; 134. Positioning structure; 1341. Drive sleeve; 1342. Positioning rod; 13421. Top post; 13422. Insert post; 13423. Support spring; 1343. Drive screw; 14. Connecting slot;

[0040] 2. End sleeve; 21. Clamping cavity; 211. Clamping block; 22. Threaded groove; 221. Screw; 23. Piston cavity; 231. Piston structure; 24. Sealing mounting groove; 241. Airbag; 242. Connecting pipe; 243. Sealing ring; 25. Insert block;

[0041] 3. Air extraction module; 31. First piston cylinder; 311. First piston rod; 312. First fixed tube; 313. Second fixed tube; 32. First drive box; 321. First reciprocating screw; 322. First drive rod; 323. First drive gear; 324. First one-way bearing; 325. Second bevel gear;

[0042] 4. Gas delivery module; 41. Second drive box; 411. Second reciprocating screw; 412. Second drive rod; 413. Second one-way bearing; 414. First pulley; 415. Third bevel gear; 42. Second piston cylinder; 421. Second piston rod; 422. Third fixed pipe; 423. Fourth fixed pipe;

[0043] 5. Recycling module; 51. Third drive box; 511. Third reciprocating screw; 512. Third drive rod; 513. Third one-way bearing; 514. Second pulley; 515. Fourth bevel gear; 52. Third piston cylinder; 521. Third piston rod; 522. Fifth fixed tube; 523. Sixth fixed tube; 53. Linkage device; 531. Drive shaft; 532. Second drive gear; 533. Third pulley; 534. Fourth pulley; 535. Transmission belt;

[0044] 6. Air box;

[0045] 7. Transmission component; 71. Transmission screw; 72. First rack; 73. Second rack; 74. Transmission gear; 75. First bevel gear; 76. Rotating rod. Detailed Implementation

[0046] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0047] like Figures 1 to 6 As shown, a preferred embodiment of the present invention provides an electrical wiring insulation protection device, which includes a protective sleeve body 1, a receiving cavity 11 for accommodating cables in the middle of the protective sleeve body 1, and end sleeves 2 coaxially provided at both ends of the protective sleeve body 1 in the axial direction. The end sleeves 2 are provided with clamping cavities 21 inside, and a gas protection device is provided in the radial direction of the protective sleeve body 1.

[0048] The inner sidewall of the end sleeve 2 is provided with a threaded groove 22, a piston chamber 23 and a sealing mounting groove 24 in sequence along the direction close to the protective sleeve body 1. A screw 221 is movably connected in the threaded groove 22. The screw 221 extends in the radial direction of the protective sleeve body 1. One end of the screw 221 is located in the clamping cavity 21 and is fixedly connected to a clamping block 211. The clamping block 211 is used to clamp the cable. A piston structure 231 is provided in the piston chamber 23. One end of the piston structure 231 extends out of the piston chamber 23 and is fixedly connected to the clamping block 211. An airbag 241 and a sealing ring 243 are provided in the sealing mounting groove 24. A connecting pipe 242 is provided between the airbag 241 and the piston chamber 23. The connecting pipe 242 is used to connect the airbag 241 and the piston chamber 23. The airbag 241 is used to compress the sealing ring 243 so that the sealing ring 243 abuts against the cable and achieves the sealing of the accommodating cavity 11.

[0049] The gas protection device includes an air extraction module 3 and a gas delivery module 4. The air extraction module 3 is used to extract air from the accommodating cavity 11, and the gas delivery module 4 is used to supply protective gas into the accommodating cavity 11.

[0050] Specifically, in conventional solutions, cable connections are often secured with adhesive tape, which is not only insufficient in strength but also allows external moisture and dust to easily penetrate the connection, affecting its stability. In this embodiment, a protective sleeve body 1 is used. The connected cable is inserted into the protective sleeve body 1 through the end sleeve 2, with the cable connection located within the receiving cavity 11 of the protective sleeve body 1. Then, by driving the screw 221 to rotate in the threaded groove 22, the clamping block 211 located in the clamping cavity 21 moves towards the cable, thereby abutting and clamping the cable. The friction between the clamping block 211 and the cable sidewall effectively counteracts external pulling forces, preventing excessive tension on the cable connection and ensuring the stability and reliability of the cable connection structure. The clamping block 211 also drives the piston rod in the piston structure 231 to move radially along the protective sleeve body 1 within the piston chamber 23, thereby discharging the gas in the piston chamber 23 through the connecting pipe 242 to the airbag 241 in the sealing mounting groove 24. This causes the airbag 241 to expand and compress the sealing ring 243, making the sealing ring 243 abut against the outer surface of the cable. This not only further increases the friction force on the cable but also seals the accommodating cavity 11, providing a sealed environment for the subsequent operation of the gas protection device and preventing adverse external factors from affecting the cable connection structure. Of course, in specific embodiments, the external shape of the end sleeve 2 can be designed and selected according to actual needs. The clamping cavity 21 can also be divided into two parts according to the positions of the sealing mounting groove 24 and the piston chamber 23. Naturally, the sealing mounting groove 24 should be located on the side closest to the protective sleeve body 1 for easier sealing of the accommodating cavity 11.

[0051] In some embodiments, multiple screws 221, clamping blocks 211, piston structures 231, and airbags 241 are evenly arranged around the axis of the protective sleeve body 1 within the end sleeve 2. Multiple clamping blocks 211 are arranged around the central axis of the end sleeve 2, thereby enabling better and more stable clamping of the cable, improving the stress state, and making the cable less prone to being pulled. Multiple airbags 241 arranged around the axis further improve the sealing effect of the sealing ring 243. In a preferred embodiment, three or five airbags 241 and clamping blocks 211 are evenly distributed around the circumference.

[0052] In some embodiments, the protective sleeve body 1 is provided with a plurality of slots 12 on one end along its axial direction, and the end sleeve 2 on the side of the protective sleeve body 1 with slots 12 is provided with a plug 25 corresponding to the slot 12. The plug 25 is disposed in the slot 12, the protective sleeve body 1 and the end sleeve 2 with plug 25 are detachably connected, and a limiting component 13 is provided between the protective sleeve body 1 and the plug 25.

[0053] Specifically, to facilitate cable connection and movement, in this embodiment, the end sleeve 2 at one end of the protective sleeve body 1 is designed as a detachable structure. During connection, the protective sleeve body 1 and the end sleeve 2 can be respectively connected to the cable from different end sleeves 2 and moved towards the cable connection point, thereby facilitating cable connection and subsequent maintenance of the cable connection point. In this embodiment, a slot 12 is provided at one end of the protective sleeve body 1, and a plug 25 is provided on the corresponding end sleeve 2. A stable connection between the end sleeve 2 and the protective sleeve body 1 can be achieved through the limiting component 13. Of course, in some other embodiments, a sealing ring 243 or other structure can also be provided between the detachable end sleeve 2 and the protective sleeve body 1 to ensure sealing.

[0054] In some embodiments, the limiting component 13 includes a mounting sleeve 131, a connecting sleeve 132, and a positioning structure 134. Both the connecting sleeve 132 and the mounting sleeve 131 are coaxially arranged with the protective sleeve body 1, and both the mounting sleeve 131 and the connecting sleeve 132 are fixedly connected to the protective sleeve body 1. A storage groove 133 is provided between the mounting sleeve 131 and the connecting sleeve 132, and the positioning structure 134 is placed in the storage groove 133.

[0055] Connecting sleeve 132 is provided with a movable slot 1321 corresponding to slot 12;

[0056] The positioning structure 134 includes a driving member and a positioning member. The positioning member includes a positioning rod 1342 extending in the radial direction of the protective sleeve body. One end of the positioning rod 1342 passes through the moving groove 1321 and is inserted into the slot 12, and engages with the insert block 25 to restrict the movement of the insert block 25. The driving member is used to drive the positioning rod 1342 to move in the radial direction of the protective sleeve body 1.

[0057] Specifically, in this embodiment, an mounting sleeve 131 and a connecting sleeve 132 are additionally fitted onto the outer side of the protective sleeve body 1. A receiving groove 133 is formed between the mounting sleeve 131 and the connecting sleeve 132. Meanwhile, a moving groove 1321 on the connecting sleeve 132 extends radially along the protective sleeve body 1. The driving component within the receiving groove 133 can drive the positioning rod 1342 to move radially along the protective sleeve body 1 within the moving groove 1321, thereby allowing the end of the positioning rod 1342 to insert into the slot 12 and cooperate with the insert block 25 to restrict the movement of the insert block 25, achieving a stable connection between the end sleeve 2 and the protective sleeve body 1. It should be noted that multiple positioning rods 1342 can be arranged circumferentially in the positioning component to achieve a stable connection between the end sleeve 2 and the protective sleeve body 1. The driving mechanism can be manually driven, electrically driven, or pneumatic, as long as it can push the positioning rod 1342 to move.

[0058] In some embodiments, the driving component includes a driving sleeve 1341 and a driving screw 1343. The driving sleeve 1341 has an inclined surface on the side facing the connecting sleeve 132, and the inclined surface abuts against the positioning rod 1342. The driving screw 1343 is rotatably connected to the mounting sleeve 131, and the driving screw 1343 is drively connected to the driving sleeve 1341 so that the driving sleeve 1341 moves along the axial direction of the protective sleeve body 1.

[0059] The positioning rod 1342 includes a top post 13421 and a insertion post 13422 that are fixedly connected. One end of the top post 13421 extends out of the moving groove 1321 and abuts against the inclined surface. One end of the insertion post 13422 is used to insert into the slot 12 and connect with the insertion block 25. A support spring 13423 is also provided in the moving groove 1321. Both ends of the support spring 13423 abut against the inner sidewalls of the top post 13421 and the moving groove 1321, respectively.

[0060] Furthermore, multiple movable grooves 1321 are arranged circumferentially around the axis of the protective sleeve body 1.

[0061] Specifically, an additional groove is provided within the storage slot 133, and a drive screw 1343 is installed within this groove. The drive screw 1343 is arranged axially along the protective sleeve body 1, and one end of the drive screw 1343 passes through the mounting sleeve 131 and is located on the outside of the mounting sleeve 131. The drive screw 1343 is also rotatably connected to the mounting sleeve 131. A block threadedly connected to the drive screw 1343 is provided on one side of the drive sleeve 1341. By rotating the end of the drive screw 1343, the drive sleeve 1341 can be moved radially within the storage slot 133 along the protective sleeve body 1. The side facing the protective sleeve body 1 has a sloping design. The movement of the drive sleeve 1341 will cause the abutment position between the sloping surface and the top post 13421 to be different. The top post 13421 will move away from the protective sleeve body 1 under the drive of the support spring 13423, and always abut against the sloping surface. This allows the movement of the drive sleeve 1341 in conjunction with the support spring 13423 to control the positioning rod 1342 to move away from or towards the protective sleeve body 1, thereby controlling the insertion post 13422 to insert into or move away from the slot 12, ultimately achieving locking and unlocking between the protective sleeve body 1 and the detachable end sleeve 2. The drive sleeve 1341 has a ring structure, and multiple positioning rods 1342 are also arranged in a ring, thus ensuring the stability of the connection between the detachable end sleeve 2 and the protective sleeve body 1. In one specific embodiment, the drive sleeve 1341 has a concave cross-section. The drive sleeve 1341 and the connecting sleeve 132 form a groove. One end of the top post 13421 is located in the groove, and the inner bottom surface of the groove is inclined. The annular structure of the drive sleeve 1341 protruding from the inclined surface on both sides of the groove can cooperate with the positioning rod 1342 to limit the movement range of the drive sleeve 1341.

[0062] In some embodiments, an air box 6 is fixedly connected to the side of the mounting sleeve 131 away from the protective sleeve body 1. A connecting groove 14 is formed between the air box 6 and the mounting sleeve 131. A transmission component 7, an air extraction module 3, and an air delivery module 4 are provided in the connecting groove 14.

[0063] The air box 6 is connected to the air delivery module 4, the air delivery module 4 is also connected to the accommodating cavity 11, the air extraction module 3 is connected to the accommodating cavity 11, and the transmission component 7 is connected to the air delivery module 4 and the air extraction module 3.

[0064] The transmission component 7 includes a transmission screw 71, a first rack 72, and a second rack 73 that extend axially along the protective sleeve body 1;

[0065] The first rack 72 is disposed on the side of the drive sleeve 1341 away from the positioning rod 1342. The first rack 72 is connected to the transmission screw 71 for driving the transmission screw 71 to rotate.

[0066] The transmission screw 71 is rotatably connected to the mounting sleeve 131, and the transmission screw 71 is drively connected to the second rack 73 to drive the second rack 73 to move along the axial direction of the protective sleeve body 1;

[0067] The second rack 73 is connected to the gas delivery module 4 and the gas extraction module 3 for driving the operation of the gas delivery module 4 and the gas extraction module 3.

[0068] In this embodiment, the gas box 6 stores protective gas. In actual use, the air in the accommodating cavity 11 needs to be extracted first, and then the protective gas in the gas box 6 is injected into the accommodating cavity 11 to protect the cable connection. In some alternative embodiments, additional vacuuming and inflation equipment can be used to extract the gas in the accommodating cavity 11 and input protective gas into the accommodating cavity 11. However, this solution requires additional equipment and is relatively troublesome. In this embodiment, the gas box 6, the extraction module 3, and the gas supply module 4 are directly set on the outside of the protective sleeve body 1, and the gas supply module 4 and the extraction module 3 can be linked with the drive sleeve 1341 through the transmission component 7. Specifically, in the actual operation, the user drives the drive sleeve 1341 to move by driving the lead screw 1343 to lock the connection state between the end sleeve 2 and the protective sleeve body 1. At the same time, the drive sleeve 1341 drives the transmission gear 74 to rotate through the first rack 72 on it. The transmission gear 74 drives the rotating rod 76, which is coaxially set in the connecting groove 14, to rotate. The transmission screw 71 is driven to rotate by two meshing first bevel gears 75. A block is threaded onto the transmission screw 71, and a second rack 73 is fixedly connected to this block. The second rack 73 is slidably connected to the wall of the connecting groove 14, thereby converting the rotational motion of the transmission screw 71 into the linear motion of the second rack 73. When the second rack 73 moves along the axial direction of the protective sleeve body 1, it first contacts the air extraction module 3, and then contacts the air supply module 4, thereby driving the air supply module 4 and the air extraction module 3 to operate, extracting the air from the accommodating cavity 11, and then inputting protective gas into the accommodating cavity 11. In this embodiment, the transmission component 7 effectively links the installation and fixing structure of the end cover with the operation of the air extraction module 3 and the air supply module 4, making the entire usage process simpler and more efficient.

[0069] In some embodiments, the air extraction module 3 includes a first piston cylinder 31 and a first drive box 32 fixedly disposed in the connecting groove 14;

[0070] A first reciprocating screw 321 is rotatably connected inside the first drive box 32. One end of the first reciprocating screw 321 is connected to a first drive rod 322. The first drive rod 322 extends along the radial direction of the protective sleeve body 1. The end of the first drive rod 322 passes through the first drive box 32 and is provided with a first one-way bearing 324. A first drive gear 323 is sleeved on the outside of the first one-way bearing 324. The first drive gear 323 is used to mesh with the second rack 73.

[0071] A first piston rod 311 is slidably connected inside the first piston cylinder 31. One end of the first piston rod 311 extends out of the first piston cylinder 31 and is threadedly connected to the first reciprocating screw 321. The first reciprocating screw 321 is used to drive the first piston rod 311 to reciprocate within the first piston cylinder 31. One end of the first piston cylinder 31 is also connected to a first fixed tube 312 and a second fixed tube 313. A one-way valve is provided between the first piston cylinder 31 and the first fixed tube 312 and the second fixed tube 313. The end of the second fixed tube 313 away from the first piston cylinder 31 extends to the outside of the mounting sleeve 131. The end of the first fixed tube 312 away from the first piston cylinder 31 is connected to the receiving cavity 11.

[0072] Specifically, in actual operation, the second rack 73 drives the first drive rod 322 to rotate via the first drive gear 323. A second bevel gear 325 is coaxially mounted on the first drive rod 322. The second bevel gear 325 drives the first reciprocating screw 321 to rotate via another meshing bevel gear. A block is threaded onto the first reciprocating screw 321, and this block is fixedly connected to the first piston rod 311. The second rack 73, through the first drive rod 322 and the meshing bevel gear, drives the first reciprocating screw 321 to move, and the first reciprocating screw 321, in turn, drives the first piston rod 311 to move within the first piston cylinder 31. The first piston rod 311 moves, and when it moves, it discharges the gas in the first piston cylinder 31 to the outside through the second fixed tube 313. The first reciprocating screw 321 can drive the first piston rod 311 to reciprocate. The first fixed tube 312 and the second fixed tube 313 are both one-way valves between the first piston cylinder 31 and the first piston cylinder 31. Therefore, as the first piston rod 311 reciprocates, it continuously draws air from the accommodating cavity 11 into the first piston cylinder 31 through the first fixed tube 312, and then discharges the air in the first piston cylinder 31 to the outside through the second fixed tube 313, thus achieving a vacuum in the accommodating cavity 11.

[0073] Furthermore, it should be noted that a first one-way bearing 324 is provided between the first drive gear 323 and the first drive rod 322. This means that the first drive gear 323 will only drive the first drive rod 322 to rotate synchronously when it rotates in one direction. In other words, the second rack 73 will only drive the first drive rod 322 to rotate through the first drive gear 323 when it moves in one direction, thus ultimately achieving the evacuation of the accommodating cavity 11. Specifically, when the drive sleeve 1341 moves in one direction and gradually squeezes the positioning rod 1342 to fix the end sleeve 2, it will drive the second rack 73 to move through the first rack 72 and the transmission screw 71. The second rack 73 will then drive the first drive rod 322 to rotate through the first drive gear 323 in conjunction with the first one-way bearing 324, and drive the first reciprocating screw 321 to move, thereby achieving the evacuation of the accommodating cavity 11. When the drive sleeve 1341 moves in the opposite direction, the first drive gear 323 will not drive the first drive rod 322 to rotate synchronously.

[0074] In some embodiments, the gas delivery module 4 includes a second drive box 41 and a second piston cylinder 42; wherein the second drive box 41 and the second piston cylinder 42 are both located at the end of the protective sleeve body 1 away from the detachable end sleeve 2, while the first drive box 32 and the first piston cylinder 31 are located at the end of the protective sleeve body 1 close to the detachable end sleeve 2.

[0075] A second reciprocating screw 411 is rotatably connected inside the second drive box 41. A second drive rod 412 is drivenly connected to one end of the second reciprocating screw 411. The second drive rod 412 extends along the radial direction of the protective sleeve body 1. A second one-way bearing 413 is provided at one end of the second drive rod 412. A second drive gear 532 is drivenly connected to the second drive rod 412 through the second one-way bearing 413. The second drive gear 532 is used to mesh with the second rack 73.

[0076] A second piston rod 421 is slidably connected inside the second piston cylinder 42. One end of the second piston rod 421 passes through the second piston cylinder 42 and is threadedly connected to the second reciprocating screw 411. The second reciprocating screw 411 is used to drive the second piston rod 421 to reciprocate within the second piston cylinder 42. One end of the second piston cylinder 42 is also connected to a third fixed pipe 422 and a fourth fixed pipe 423. A one-way valve is provided between the second piston cylinder 42 and the third fixed pipe 422 and the fourth fixed pipe 423. The end of the fourth fixed pipe 423 away from the second piston cylinder 42 is connected to the air box 6, and the end of the third fixed pipe 422 away from the second piston cylinder 42 is connected to the accommodating cavity 11.

[0077] Specifically, in actual operation, as the drive sleeve 1341 drives the first rack 72 to move, the second rack 73 will also move along the axis of the protective sleeve body 1. When the second rack 73 drives the first drive gear 323 to rotate and drives the first drive rod 322 to rotate to achieve the evacuation of the accommodating cavity 11, the second rack 73 will continue to move along the axis of the protective sleeve body 1 until the second rack 73 contacts the second drive gear 532. Then, the second rack 73 will drive the second reciprocating screw 411 to rotate through the second drive gear 532 and the second one-way bearing 413, thereby driving the second piston rod 421 to reciprocate. The second piston cylinder 42, in conjunction with two one-way valves, restricts the gas flow in the third fixed tube 422 and the fourth fixed tube 423, thereby continuously extracting the protective gas in the gas box 6 and discharging it into the accommodating cavity 11. In addition, in this embodiment, a third bevel gear 415 may be coaxially arranged on the second drive rod 412, and a bevel gear meshing with the third bevel gear 415 may be arranged on the second reciprocating screw 411 to drive the second reciprocating screw 411 to rotate.

[0078] In some embodiments, the system further includes a recycling module 5, which includes a third drive box 51, a third piston cylinder 52, and a linkage device 53.

[0079] The third drive box 51 is rotatably connected to the third reciprocating screw 511. One end of the third reciprocating screw 511 is connected to the third drive rod 512. The third drive rod 512 extends along the radial direction of the protective sleeve body 1. The end of the third drive rod 512 is provided with a third one-way bearing 513. The third one-way bearing 513 is connected to the linkage device 53.

[0080] A third piston rod 521 is slidably connected inside the third piston cylinder 52. One end of the third piston rod 521 passes through the third piston cylinder 52 and is threadedly connected to the third reciprocating screw 511. The third reciprocating screw 511 is used to drive the third piston rod 521 to reciprocate within the third piston cylinder 52. One end of the third piston cylinder 52 is also connected to the fifth fixed pipe 522 and the sixth fixed pipe 523. One-way valves are provided between the second piston cylinder 42 and the fifth fixed pipe 522 and the sixth fixed pipe 523. The end of the fifth fixed pipe 522 away from the third piston cylinder 52 is connected to the air box 6, and the end of the sixth fixed pipe 523 away from the third piston cylinder 52 is connected to the receiving cavity 11.

[0081] The linkage device 53 includes a drive shaft 531. One end of the drive shaft 531 is provided with a second drive gear 532, which is used to mesh with the second rack 73. The other end of the linkage device 53 is also provided with a third pulley 533 and a fourth pulley 534. A first pulley 414 is provided on the outer side of the second one-way bearing 413 corresponding to the third pulley 533, and a second pulley 514 is provided on the outer side of the third one-way bearing 513 corresponding to the fourth pulley 534. A transmission belt 535 is provided between the first pulley 414 and the third pulley 533, and between the second pulley 514 and the fourth pulley 534.

[0082] In actual operation, when it is necessary to remove the protection of the cable connection for inspection and adjustment, it is necessary to first extract and store the protective gas in the accommodating cavity 11 to facilitate the recycling of the entire device, thereby reducing the cost of use. In this embodiment, when the gas supply is completed, the second rack 73 moves to one end of the connecting groove 14. When it is necessary to remove the protection of the cable connection, the drive screw 1343 can be rotated in the opposite direction to make the drive sleeve 1341 move in the opposite direction, and then drive the second rack 73 to move in the opposite direction through the transmission screw 71. At this time, the second rack 73 will drive the second drive gear 532 to rotate in the opposite direction, thereby driving the drive shaft 531 to rotate synchronously, and driving the third pulley 533 and the fourth pulley 534 on the drive shaft 531 to rotate. The third pulley 533 and the fourth pulley 534 drive the first pulley 414 and the second pulley 514 to rotate respectively. However, since the first pulley 414 is driven by the third unidirectional... Since the bearing 513 is connected to the second drive rod 412, the first pulley 414 cannot drive the second drive rod 412 to rotate in this state, and therefore cannot input the protective gas in the gas box 6 into the accommodating cavity 11. At the same time, the second pulley 514 can drive the third drive rod 512 to rotate through the third one-way bearing 513, and then drive the third reciprocating screw 511 to rotate through the meshing fourth bevel gear 515, and finally drive the third piston rod 521 in the third piston cylinder 52 to move. The movement of the third piston rod 521 can cooperate with the one-way valve and the fifth fixed pipe 522 and the sixth fixed pipe 523 to continuously discharge the protective gas in the accommodating cavity 11 into the gas box 6 for storage, so as to facilitate the next use.

[0083] In summary, this embodiment of the invention provides an electrical wiring insulation protection device. The clamping block 211 on the end sleeve 2 effectively clamps the cable, preventing it from detaching due to excessive external force at the cable connection point and ensuring the stability of the cable connection structure. Simultaneously, the movement of the clamping block 211 moves the piston structure 231 within the piston chamber 23, causing the airbag 241 to expand and compress the sealing ring 243, thus sealing the accommodating cavity 11. Furthermore, by locking the detachable end sleeve 2, the transmission screw 71 sequentially drives the air extraction module 3 and the air supply module 4 to operate, thereby extracting air from the accommodating cavity 11 and injecting protective gas, further improving the protection effect on the cable connection structure within the accommodating cavity 11.

[0084] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An electrical wiring insulation protection device, comprising a protective sleeve body, wherein the protective sleeve body has a receiving cavity in the middle for accommodating a cable, characterized in that, Both ends of the protective sleeve body in the axial direction are coaxially provided with end sleeves, and the end sleeves are provided with clamping cavities. The protective sleeve body is provided with a gas protection device in the radial direction. The inner wall of the end sleeve is provided with a threaded groove, a piston chamber, and a sealing mounting groove in sequence along the direction close to the main body of the protective sleeve. A screw is movably connected in the threaded groove. The screw extends radially along the main body of the protective sleeve. One end of the screw is located in the clamping cavity and is fixedly connected to a clamping block. The clamping block is used to clamp the cable. A piston structure is provided in the piston chamber. One end of the piston structure extends out of the piston chamber and is fixedly connected to the clamping block. An airbag and a sealing ring are provided in the sealing mounting groove. A connecting pipe is provided between the airbag and the piston chamber. The connecting pipe is used to connect the airbag and the piston chamber. The airbag is used to compress the sealing ring so that the sealing ring abuts against the cable and achieves the sealing of the accommodating cavity. The gas protection device includes an air extraction module and a gas delivery module. The air extraction module is used to extract air from the accommodating cavity, and the gas delivery module is used to supply protective gas into the accommodating cavity.

2. The electrical wiring insulation protection device according to claim 1, characterized in that, Multiple screws, clamps, piston structures, and airbags are evenly arranged around the axis of the protective sleeve body within the end sleeve.

3. The electrical wiring insulation protection device according to claim 1, characterized in that, The protective sleeve body has multiple slots on one side of its axial direction. The end sleeve on the side of the protective sleeve body with slots has a plug corresponding to the slot. The plug is disposed in the slot. The protective sleeve body and the end sleeve with the plug are detachably connected. A limiting component is provided between the protective sleeve body and the plug.

4. The electrical wiring insulation protection device according to claim 3, characterized in that, The limiting component includes an mounting sleeve, a connecting sleeve, and a positioning structure. Both the connecting sleeve and the mounting sleeve are coaxially arranged with the main body of the protective sleeve, and both the mounting sleeve and the connecting sleeve are fixedly connected to the main body of the protective sleeve. A storage groove is provided between the mounting sleeve and the connecting sleeve, and the positioning structure is placed in the storage groove. The connecting sleeve is provided with a movable groove corresponding to the slot; The positioning structure includes a driving component and a positioning component. The positioning component includes a positioning rod extending in the radial direction of the protective sleeve. One end of the positioning rod passes through the moving groove and is inserted into the slot, and engages with the insert block to restrict the movement of the insert block. The driving component is used to drive the positioning rod to move in the radial direction of the protective sleeve body.

5. The electrical wiring insulation protection device according to claim 4, characterized in that, The driving component includes a driving sleeve and a driving screw. The driving sleeve has an inclined surface on the side facing the connecting sleeve, and the inclined surface abuts against the positioning rod. The driving screw is rotatably connected to the mounting sleeve, and the driving screw is drively connected to the driving sleeve to drive the driving sleeve to move along the axial direction of the protective sleeve body. The positioning rod includes a top post and a bottom post that are fixedly connected. One end of the top post extends out of the moving groove and abuts against the inclined surface. One end of the bottom post is used to insert into the slot and cooperate with the insert block. A support spring is also provided in the moving groove. The two ends of the support spring abut against the top post and the inner sidewall of the moving groove, respectively.

6. The electrical wiring insulation protection device according to claim 5, characterized in that, Multiple movable slots are arranged circumferentially around the axis of the protective sleeve body.

7. The electrical wiring insulation protection device according to claim 5, characterized in that, An air box is fixedly connected to the side of the mounting sleeve away from the main body of the protective sleeve. A connecting groove is formed between the air box and the mounting sleeve. A transmission component, the air extraction module, and the air delivery module are provided in the connecting groove. The air box is connected to the air delivery module, the air delivery module is also connected to the accommodating cavity, the air extraction module is connected to the accommodating cavity, and the transmission component is connected to the air delivery module and the air extraction module in a transmission connection. The transmission component includes a transmission lead screw, a first rack, and a second rack that extend axially along the main body of the protective sleeve. The first rack is disposed on the side of the drive sleeve away from the positioning rod, and the first rack is connected to the transmission screw to drive the transmission screw to rotate; The transmission screw is rotatably connected to the mounting sleeve, and the transmission screw is also connected to the second rack to drive the second rack to move along the axial direction of the protective sleeve body; The second rack is connected to the gas supply module and the gas extraction module in a driving connection to drive the gas supply module and the gas extraction module to operate.

8. The electrical wiring insulation protection device according to claim 7, characterized in that, The air extraction module includes a first piston cylinder and a first drive box that are fixedly installed in the connecting groove; A first reciprocating screw is rotatably connected inside the first drive box. One end of the first reciprocating screw is connected to a first drive rod. The first drive rod extends along the radial direction of the protective sleeve body. The end of the first drive rod passes through the first drive box and is provided with a first one-way bearing. A first drive gear is sleeved on the outside of the first one-way bearing. The first drive gear is used to mesh with the second rack. A first piston rod is slidably connected inside the first piston cylinder. One end of the first piston rod passes through the first piston cylinder and is threadedly connected to the first reciprocating screw. The first reciprocating screw is used to drive the first piston rod to reciprocate within the first piston cylinder. One end of the first piston cylinder is also connected to a first fixed tube and a second fixed tube. A one-way valve is provided between the first piston cylinder and both the first fixed tube and the second fixed tube. The end of the second fixed tube away from the first piston cylinder extends to the outside of the mounting sleeve. The end of the first fixed tube away from the first piston cylinder is connected to the receiving cavity.

9. The electrical wiring insulation protection device according to claim 8, characterized in that, The gas delivery module includes a second drive box and a second piston cylinder; The second drive box is rotatably connected to a second reciprocating screw. One end of the second reciprocating screw is driven to a second drive rod. The second drive rod extends along the radial direction of the protective sleeve body. One end of the second drive rod is provided with a second one-way bearing, and a second drive gear is driven to it through the second one-way bearing. The second drive gear is used to mesh with the second rack. A second piston rod is slidably connected inside the second piston cylinder. One end of the second piston rod passes through the second piston cylinder and is threadedly connected to the second reciprocating screw. The second reciprocating screw is used to drive the second piston rod to reciprocate within the second piston cylinder. One end of the second piston cylinder is also connected to a third fixed pipe and a fourth fixed pipe. A one-way valve is provided between the second piston cylinder and the third fixed pipe and the fourth fixed pipe. The end of the fourth fixed pipe away from the second piston cylinder is connected to the air box, and the end of the third fixed pipe away from the second piston cylinder is connected to the receiving cavity.

10. The electrical wiring insulation protection device according to claim 9, characterized in that, It also includes a recycling module, which includes a third drive box, a third piston cylinder, and a linkage device; A third reciprocating screw is rotatably connected inside the third drive box. One end of the third reciprocating screw is drivenly connected to a third drive rod. The third drive rod extends along the radial direction of the protective sleeve body. A third one-way bearing is provided at the end of the third drive rod. The third one-way bearing is drivenly connected to the linkage device. A third piston rod is slidably connected inside the third piston cylinder. One end of the third piston rod passes through the third piston cylinder and is threadedly connected to the third reciprocating screw. The third reciprocating screw is used to drive the third piston rod to reciprocate within the third piston cylinder. One end of the third piston cylinder is also connected to a fifth fixed pipe and a sixth fixed pipe. A one-way valve is provided between the second piston cylinder and both the fifth and sixth fixed pipes. The end of the fifth fixed pipe away from the third piston cylinder is connected to the air box, and the end of the sixth fixed pipe away from the third piston cylinder is connected to the receiving cavity. The linkage device includes a drive shaft, one end of which is provided with a second drive gear for meshing with the second rack; the other end of the linkage device is also provided with a third pulley and a fourth pulley, a first pulley is provided on the outer side of the second one-way bearing corresponding to the third pulley, and a second pulley is provided on the outer side of the third one-way bearing corresponding to the fourth pulley, and a transmission belt is provided between the first pulley and the third pulley and between the second pulley and the fourth pulley.

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