Medium voltage fire resistant power cable and processing equipment therefor

Abstract

This invention relates to the field of cable processing technology, specifically to a medium-voltage fire-resistant power cable and its processing equipment. The processing equipment includes a base, a cooling box fixedly connected to one side of the base, and a fixed box fixedly connected to another side of the base. The fixed box contains two sets of adjusting components and two sets of driving components. Through the alternating operation of the two sets of adjusting components, continuous water removal from the cable surface is achieved. When the sponge moves back from the working position, the moving plate moves synchronously, pushing the squeezing plate to swing. The swinging of the squeezing plate squeezes water from the sponge, thus achieving rapid water removal without the need for an additional power source or control components. This solves the problem of traditional sponge reversing water application after saturation and requiring frequent manual wringing, improving water removal efficiency and stability, and avoiding quality problems such as unclear cable markings and substandard insulation resistance caused by residual moisture. Furthermore, the device has a simple and reliable structure and is suitable for widespread application.

Description

Technical Field

[0001] This invention relates to the field of cable processing technology, specifically to a medium-voltage fire-resistant power cable and its processing equipment. Background Technology

[0002] As is well known, medium-voltage fire-resistant power cables are core power supply facilities in densely populated or critical locations such as high-rise buildings, subway tunnels, large commercial complexes, and nuclear power plants. Their fire resistance and production quality are directly related to public safety and emergency power supply capabilities. In recent years, with the advancement of my country's new urbanization construction and the upgrading of power infrastructure, the market demand for medium-voltage fire-resistant cables has continued to rise, while also placing more stringent requirements on their production efficiency, product consistency, and operational reliability.

[0003] In the production process of medium-voltage fire-resistant cables, the immersion water cooling after insulation extrusion is the core process that determines the electrical performance and mechanical strength of the cable. The insulation layer that comes out of the three-layer co-extrusion die head is in a molten state of 180-220℃. It needs to be slowly and gradually cooled by a 15-30 meter long segmented cooling water tank to ensure the roundness, cross-linking degree and internal structure stability of the insulation layer. However, after the cable is taken out of the cooling water tank, a uniform water film and a large number of hanging water droplets will inevitably adhere to the surface. If they are not completely removed, a series of chain quality problems will be triggered.

[0004] Currently, the industry generally adopts sponge wiping to remove water. Sponge wiping has become the most widely used basic method due to its simple structure and low cost. However, it has an unavoidable drawback: the water absorption capacity of the sponge is limited. It reaches saturation after working continuously for 10-15 minutes. At this point, it not only cannot continue to absorb water, but will also smear the water accumulated inside back onto the cable surface, resulting in a sharp drop in the drying effect.

[0005] To address the aforementioned issues, some existing technologies have attempted to employ improved solutions involving alternating operation of two sets of sponges. For instance, Chinese patent CN219476400U discloses a cable surface dewatering structure that uses two fixed sponges and an independent motor to drive a squeezing roller to reciprocate the squeezing process. However, the sponges stop working during the squeezing process, resulting in a significant drying gap. Chinese patent CN119489542A discloses a multi-stage cooling treatment device for cable sheath extrusion, which uses a turntable to drive two sets of sponges to exchange positions for squeezing. However, this solution uses a static planar extrusion method for dewatering, which can only remove a portion of the surface water from the sponge, leaving residual water inside. This significantly reduces the actual effective water absorption capacity of the sponge, requiring frequent switching. Furthermore, its overall structure consists of more than a dozen moving parts, including a turntable, multiple hinge rods, and a rotating slider. It has numerous hinge points, requires high processing precision, has high manufacturing costs, and is bulky, occupying excessive workshop space.

[0006] In summary, existing cable dewatering technologies have consistently failed to overcome the inherent bottleneck of sponge saturation failure. Traditional fixed sponge requires frequent manual intervention, while existing dual-group alternating solutions either have a drying gap or are inefficient in squeezing, have complex structures, and are costly. Furthermore, all of these solutions require independent power sources to drive the squeezing action, making it impossible to achieve simultaneous switching and squeezing, and thus failing to meet the requirements for efficient, stable, and low-cost production of medium-voltage fire-resistant cables. Summary of the Invention

[0007] To overcome the above-mentioned technical problems, the present invention provides a medium-voltage fire-resistant power cable processing equipment with convenient switching between squeezing and drying functions, and a medium-voltage fire-resistant power cable processed by the equipment.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a medium-voltage fire-resistant power cable processing equipment, comprising a base, a cooling box and a fixed box on one side of the base, the fixed box being disposed on one side of the base, and having two sets of adjustment components and two sets of drive components inside the fixed box. The adjustment components include two sets of sponge wipes for wiping away water droplets from the outside of the cable, multiple sets of moving plates that move in conjunction with the sponge wipes, and multiple sets of squeezing plates that squeeze the water out of the sponge wipes. The moving plates are located inside the squeezing plates. The drive components are used to drive the sponge wipes to move. When one set of sponge wipes moves back from the working position to the non-working position, the moving plate of that set of adjustment components moves synchronously with the sponge wipes, pushing the squeezing plates to swing and squeezing the set of sponge wipes to remove water.

[0009] Preferably, a push plate is provided on one side of the sponge, and a connecting frame is provided on one side of the push plate. The side of the connecting frame away from the push plate passes through the fixed box and is fixedly installed with the movable plate. Two sets of fixed frames are provided on the side of the movable plate near the connecting frame. A rack is fixedly installed between the two sets of fixed frames, and the rack meshes with one side of the drive assembly.

[0010] Preferably, a fixing column is rotatably provided on one side of the extrusion plate, the fixing column is fixedly provided inside the fixing box, and two sets of baffles are fixedly provided on the outside of the fixing column, with the two sets of baffles located on both sides of the extrusion plate, and the extrusion plate is inclined.

[0011] Preferably, a central shaft is provided on one side of the movable plate, and a pulley is rotatably provided on the outer side of the central shaft. The outer side of the pulley contacts one side of the extrusion plate. An operation plate is provided on one side of the movable plate, and the operation plate is arranged parallel to the sponge. A limit rod is slidably provided inside the movable plate, and one end of the limit rod is fixedly provided inside the fixed box.

[0012] Preferably, a movable disc is slidably disposed on the outer side of the limiting rod, a fixed disc is fixedly disposed on the outer side of the limiting rod, and a first spring is fixedly disposed between the fixed disc and the movable disc.

[0013] Preferably, the drive assembly includes a rotary motor, which is disposed inside the fixed housing. The output end of the rotary motor is keyed to a rotating column, and a gear is fixedly disposed on the outer side of the rotating column, and the gear meshes with two sets of racks.

[0014] Preferably, the connecting frame is provided with an installation component inside, the push plate is provided with two sets of installation holes inside, the installation component includes a placement plate, the placement plate is fixedly installed inside the connecting frame, two sets of second springs and two sets of balance bars are fixedly installed on both sides of the placement plate, a movable frame is slidably installed on the outer side of the two sets of balance bars, and the end of the second spring away from the placement plate is fixedly installed with the movable frame, and a locking rod is provided on one side of the movable frame, and the locking rod is engaged inside the installation hole.

[0015] Preferably, baffles are snapped onto both sides of the fixing box, and multiple sets of mounting seats are respectively provided on both sides of the fixing box. The mounting seats have slots inside, and two sets of fixing components are provided inside the baffles.

[0016] Preferably, the fixing assembly includes a connecting shaft and two sets of mounting discs. The mounting discs are fixedly disposed inside the baffle. The connecting shaft is rotatably disposed inside the baffle. A turntable is fixedly disposed at one end of the connecting shaft. A handle is disposed on one side of the turntable. A first bevel gear is disposed on the outer side of the connecting shaft. A movable shaft is rotatably disposed inside the mounting disc. A threaded tube is disposed at one end of the movable shaft. A sleeve is screwed onto the outer side of the threaded tube. A connecting plate is disposed on one side of the sleeve. A locking block is disposed on one side of the connecting plate, and the locking block is parallel to the locking groove. A second bevel gear is disposed at the end of the movable shaft away from the threaded tube, and the second bevel gear meshes with the first bevel gear.

[0017] A medium-voltage fire-resistant power cable, processed by the aforementioned medium-voltage fire-resistant power cable processing equipment, specifically includes three sets of conductors. A fire-resistant layer is sleeved on the outside of the conductors. An insulation layer is sleeved on the outside of the fire-resistant layer. A shielding layer is sleeved on the outside of the insulation layer. A filling layer is provided on the outside of the three sets of shielding layers. A steel tape armor layer is sleeved on the outside of the filling layer. A halogen-free outer sheath is sleeved on the outside of the steel tape armor layer. A rodent-proof outer sheath is provided on the outside of the halogen-free outer sheath.

[0018] Beneficial effects:

[0019] This medium-voltage fire-resistant power cable processing equipment achieves continuous water removal from the cable surface through the alternating operation of two sets of adjusting components. When the sponge moves back from the working position, the moving plate moves synchronously with it, pushing the squeezing plate to swing. The swinging of the squeezing plate will squeeze water out of the sponge, thus eliminating the need for additional power sources and control components to quickly squeeze water out of the sponge. This solves the problem of traditional sponge reversing water application after saturation and the need for frequent manual wringing, improving water removal efficiency and stability. It avoids quality problems such as unclear cable markings and substandard insulation resistance caused by residual moisture. Moreover, the device has a simple and reliable structure and is suitable for widespread application. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the fixing box of the present invention;

[0022] Figure 3 A cross-sectional view of the structure of the fixing box of the present invention. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of the adjustment component of the present invention;

[0025] Figure 6 This is a partial structural cross-sectional view of the connecting frame and push plate of the present invention;

[0026] Figure 7 This is a partial structural cross-sectional view of the fixing box of the present invention;

[0027] Figure 8 A cross-sectional view of the structure of the fixing box of the present invention. Figure 2 ;

[0028] Figure 9 This is a cross-sectional view of the fixing component of the present invention;

[0029] Figure 10 This is a partial structural diagram of the fixing component of the present invention. Figure 1 ;

[0030] Figure 11 This is a partial structural diagram of the fixing component of the present invention. Figure 2 ;

[0031] Figure 12 This is a cross-sectional view of the structure of the medium-voltage fire-resistant power cable of the present invention.

[0032] In the diagram: 1. Base; 2. Adjustment assembly; 201. Movable plate; 202. Connecting frame; 203. Push plate; 204. Rack; 205. Fixed frame; 206. Sponge; 207. Central shaft; 208. Movable disc; 209. Limiting rod; 210. First spring; 211. Fixed column; 212. Pulley; 213. Moving plate; 214. Squeezing plate; 215. Blocking plate; 216. Fixed disc; 217. Operation panel; 3. Installation assembly; 301. Placement plate; 302. Movable frame; 303. Second spring; 304. Balance bar; 305. Clamping roller; 4. Drive assembly; 401. Rotary motor; 402. Rotary... 403. Moving column; 5. Gear; 6. Fixing assembly; 7. Mounting plate; 8. Turntable; 9. Handle; 10. Threaded pipe; 11. Sleeve; 12. Connecting plate; 13. Locking block; 14. First bevel gear; 15. Connecting shaft; 16. Moving shaft; 17. Anti-detachment block; 18. Second bevel gear; 19. Cooling box; 20. Collection box; 21. Fixing box; 32. Mounting base; 33. Baffle; 44. Mounting hole; 55. Slot; 66. Conductor; 77. Fire-resistant layer; 88. Insulation layer; 19. Shielding layer; 20. Filling layer; 11. Steel strip armor layer; 21. Halogen-free outer sheath; 22. Rodent-proof outer sheath. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0037] See Figures 1-12 A medium-voltage fire-resistant power cable processing equipment includes a base 1, a cooling box 6 fixedly connected to one side of the base 1, a collection box 7 provided at the bottom of the base 1, a coolant inside the cooling box 6 for cooling the cable, a fixing box 8 fixedly connected to one side of the base 1, the fixing box 8 and the cooling box 6 being parallel, the cooled cable passing through the fixing box 8, baffles 10 being snapped onto both sides of the fixing box 8, four sets of mounting seats 9 fixedly connected to both sides of the fixing box 8 respectively, the mounting seats 9 having slots 12 inside, two sets of adjusting components 2 and two sets of driving components 4 being provided inside the fixing box 8, and two sets of fixing components 5 being provided inside the baffles 10.

[0038] First, refer to Figures 1 to 6 In this embodiment, the adjustment component 2 includes two sets of movable plates 201, four sets of limiting rods 209, and four sets of fixed columns 211. The two sets of movable plates 201 are slidably connected to both sides of the fixed box 8. A connecting frame 202 and two sets of fixed frames 205 are fixedly connected to one side of the movable plate 201. The side of the connecting frame 202 away from the movable plate 201 extends into the interior of the fixed box 8 and is fixedly set with the push plate 203. A sponge 206 is fixedly connected to one side of the push plate 203. A rack 204 is fixedly connected between the two sets of fixed frames 205.

[0039] The limiting rod 209 is fixedly connected inside the fixed box 8. A movable plate 213 is slidably connected to the outside of the limiting rod 209. An operating plate 217 is fixedly connected to one side of the movable plate 213. The operating plate 217 and the push plate 203 are arranged in parallel. A central shaft 207 is fixedly connected to one side of the movable plate 213. A pulley 212 is rotatably connected to the outside of the central shaft 207.

[0040] Specifically, in order to enable the movable plate 213 to move back quickly, a fixed plate 216 is fixedly connected to the outside of the limiting rod 209, and a movable plate 208 is slidably connected to the outside of the limiting rod 209. A first spring 210 is fixedly connected between the movable plate 208 and the fixed plate 216. Thus, when the movable plate 213 is pushed, the movable plate 208 will be squeezed by the movable plate 213, and the first spring 210 will be squeezed by the movable plate 208. When the movable plate 213 is no longer pushed, the first spring 210 will bounce the movable plate 213 back quickly by bouncing the movable plate 208 back.

[0041] The fixed column 211 is fixedly connected inside the fixed box 8. The outer side of the fixed column 211 is rotatably connected to the extrusion plate 214, and the extrusion plate 214 is inclined. The outer side of the fixed column 211 is fixedly connected to two sets of baffle plates 215, and the two sets of baffle plates 215 are respectively located on both sides of the extrusion plate 214. The moving plate 213 is slidably connected inside the extrusion plate 214, and the outer side of the pulley 212 is in contact with the side of the extrusion plate 214 away from the sponge 206.

[0042] When the rack 204 is pushed, it will push the movable plate 201 to move by pushing the fixed frame 205. The displacement of the movable plate 201 will push the push plate 203 to move horizontally by pushing the connecting frame 202. The displacement of the push plate 203 will push the sponge 206 to move. At this time, one set of sponges 206 will move towards the cable and contact the cable, so that the sponge 206 can wipe away the water droplets on the outside of the cable. The other set of sponges 206 will move in the opposite direction of the cable. At the same time, its movement will push the operating plate 217 to move. The displacement of the operating plate 217 will push the movable plate 213 to move. The displacement of the movable plate 213 will push the pulley 212 to move by pushing the central shaft 207. The displacement of the pulley 212 will push the squeezing plate 214 to swing. At this time, the squeezing plate 214 will swing around the fixed column 211 as the axis. The swing of the squeezing plate 214 will squeeze the sponge 206, so that the sponge 206 can complete the dehydration work.

[0043] Then, refer to Figure 3 , Figure 4 and Figure 6 In this embodiment, the connecting frame 202 is provided with an installation component 3, and the push plate 203 is provided with two sets of mounting holes 11. The connecting frame 202 is connected to the push plate 203 through the installation component 3. The installation component 3 includes a placement plate 301, which is fixedly installed inside the connecting frame 202. Two sets of second springs 303 and two sets of balance bars 304 are fixedly installed on both sides of the placement plate 301, respectively. A movable frame 302 is slidably installed on the outer side of the two sets of balance bars 304, and the second springs 303 are away from the placement plate 301. One end of the connecting frame 202 is fixedly installed with the movable frame 302. A locking roller 305 is provided on one side of the movable frame 302, and the locking roller 305 is engaged inside the mounting hole 11. When the locking roller 305 is engaged inside the mounting hole 11, the connecting frame 202 will be stably combined with the push plate 203. After the movable frame 302 is squeezed, the movable frame 302 will push the locking roller 305 to move and disengage from the mounting hole 11. At this time, the connecting frame 202 will no longer be stably combined with the push plate 203, and the operator can easily disassemble the push plate 203 to replace the sponge 206.

[0044] Secondly, see Figure 1 , Figure 2 , Figure 3 and Figure 7 In this embodiment, the drive assembly 4 includes a rotary motor 401, which is disposed inside the fixed box 8. The output end of the rotary motor 401 is keyed to a rotating column 402. A gear 403 is fixedly disposed on the outer side of the rotating column 402, and the gear 403 meshes with two sets of racks 204. After the rotary motor 401 is turned on, the output end of the rotary motor 401 will drive the rotating column 402 to rotate. The rotation of the rotating column 402 will drive the gear 403 to rotate. The rotation of the gear 403 will push the two sets of racks 204 to move horizontally, and the two sets of racks 204 move in opposite directions.

[0045] Finally, see Figure 1 , Figure 2 , Figure 8 , Figure 9 , Figure 10 and Figure 11 In this embodiment, the fixing component 5 includes a connecting shaft 509 and two sets of mounting discs 501. The mounting discs 501 are fixedly disposed inside the baffle 10, and the connecting shaft 509 is rotatably disposed inside the baffle 10. A turntable 502 is fixedly disposed at one end of the connecting shaft 509, and the turntable 502 is located outside the baffle 10. A handle 503 is disposed on one side of the turntable 502, which allows the operator to easily rotate the connecting shaft 509 and pick up the baffle 10. A first bevel gear 508 is disposed on the outside of the connecting shaft 509, and a movable shaft is rotatably disposed inside the mounting discs 501. 510, two sets of anti-detachment blocks 511 are fixedly connected to the outer side of the movable shaft 510, and the two sets of anti-detachment blocks 511 are located on both sides of the mounting plate 501. One end of the movable shaft 510 is provided with a threaded tube 504, and a sleeve 505 is screwed onto the outer side of the threaded tube 504. A connecting plate 506 is provided on one side of the sleeve 505, and a locking block 507 is provided on one side of the connecting plate 506. The locking block 507 is parallel to the locking groove 12. A second bevel gear 512 is provided at the end of the movable shaft 510 away from the threaded tube 504, and the second bevel gear 512 meshes with the first bevel gear 508.

[0046] After turning the handle 503, the handle 503 will drive the turntable 502 to rotate. The rotation of the turntable 502 will drive the connecting shaft 509 to rotate. The rotation of the connecting shaft 509 will drive the first bevel gear 508 to rotate. The rotation of the first bevel gear 508 will drive the two sets of second bevel gears 512 to rotate. The rotation of the second bevel gears 512 will drive the movable shaft 510 to rotate. The rotation of the movable shaft 510 will drive the threaded tube 504 to rotate. The rotation of the threaded tube 504 will drive the sleeve 505 to move linearly. The displacement of the sleeve 505 will push the connecting plate 506 to move longitudinally. The displacement of the connecting plate 506 will push the locking block 507 to move and lock into the slot 12. At this time, the locking block 507 will install the baffle 10 into the fixed box 8 by locking the mounting base 9.

[0047] This medium-voltage fire-resistant power cable processing equipment achieves continuous water removal from the cable surface through the alternating operation of two sets of adjusting components 2. When the sponge 206 moves back from the working position, the moving plate 213 moves synchronously with it, pushing the squeezing plate 214 to swing. The swinging of the squeezing plate 214 will squeeze water out of the sponge 206. Therefore, the sponge 206 can be quickly squeezed out of water without additional power source and control components. This solves the problem of reverse water application after the traditional sponge is saturated and requires frequent manual wringing, improves water removal efficiency and stability, and avoids quality problems such as unclear cable printing and substandard insulation resistance caused by residual moisture. Moreover, the device has a simple and reliable structure and is suitable for promotion.

[0048] A medium-voltage fire-resistant power cable includes three sets of conductors 13, a fire-resistant layer 14 covering the outer side of the conductors 13, an insulation layer 15 covering the outer side of the fire-resistant layer 14, a shielding layer 16 covering the outer side of the insulation layer 15, a filling layer 17 covering the outer side of the three sets of shielding layers 16, a steel tape armor layer 18 covering the outer side of the filling layer 17, a halogen-free outer sheath 19 covering the outer side of the steel tape armor layer 18, and a rodent-proof outer sheath 20 covering the outer side of the halogen-free outer sheath 19.

[0049] Working principle:

[0050] In operation, this medium-voltage fire-resistant power cable processing equipment first activates the rotary motor 401, causing its output to drive the rotating column 402 to rotate. The rotation of the rotating column 402 drives the gear 403 to rotate, which in turn pushes two sets of racks 204 to move horizontally in opposite directions. When the racks 204 are pushed, they displace the fixed frame 205, which in turn displaces the movable plate 201. This displacement of the movable plate 201 then pushes the connecting frame 202, causing the push plate 203 to move horizontally. The displacement of the push plate 203 then displaces the sponge eraser 206. At this point, one of the two sets of sponge erasers 206... One set of sponges will move towards and contact the cable, thereby wiping away water droplets from the outside of the cable. Meanwhile, another set of sponges 206 will move in the opposite direction of the cable, pushing the operating plate 217 to move as well. The displacement of the operating plate 217 will push the moving plate 213 to move, which in turn will push the pulley 212 to move by moving the central shaft 207. The displacement of the pulley 212 will push the squeezing plate 214 to swing. At this time, the squeezing plate 214 will swing around the fixed column 211 as the axis. The swing of the squeezing plate 214 will squeeze the sponge 206, thereby completing the dehydration work of the sponge 206.

[0051] When installing the baffle 10, turn the handle 503 to make the turntable 502 rotate. The rotation of the turntable 502 will drive the connecting shaft 509 to rotate. The rotation of the connecting shaft 509 will drive the first bevel gear 508 to rotate. The rotation of the first bevel gear 508 will drive the two sets of second bevel gears 512 to rotate. The rotation of the second bevel gears 512 will drive the movable shaft 510 to rotate. The rotation of the movable shaft 510 will drive the threaded tube 504 to rotate. The rotation of the threaded tube 504 will drive the sleeve 505 to move linearly. The displacement of the sleeve 505 will push the connecting plate 506 to move longitudinally. The displacement of the connecting plate 506 will push the locking block 507 to move and lock into the slot 12. At this time, the locking block 507 will install the baffle 10 into the fixed box 8 by locking the mounting base 9.

[0052] When it is necessary to remove the baffle 10 to replace the sponge 206, reverse the handle 503 to make the connecting shaft 509 reverse. The reverse rotation of the connecting shaft 509 will drive the first bevel gear 508 to reverse. The reverse rotation of the first bevel gear 508 will drive the second bevel gear 512 to reverse, thereby driving the threaded tube 504 to reverse. The reverse rotation of the threaded tube 504 will drive the sleeve 505 to move back, thereby driving the locking block 507 to move back. At this time, the locking block 507 will disengage from the slot 12 and no longer lock the mounting base 9. At this time, the operator can easily remove the baffle 10.

[0053] When replacing the sponge 206, the movable frame 302 is squeezed to push the clamping roller 305 to move and disengage from the mounting hole 11. At this time, the connecting frame 202 will no longer be stably combined with the push plate 203, and the operator can easily disassemble the push plate 203 to replace the sponge 206.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medium voltage fire resistant power cable processing apparatus, characterized in that, include: A base (1) is provided with a cooling box (6) on one side of the base (1); The fixed box (8) is located on one side of the base (1), and the fixed box (8) is provided with two sets of adjustment components (2) and two sets of drive components (4). The adjustment component (2) includes two sets of sponge wipes (206) for wiping away water droplets on the outside of the cable, multiple sets of moving plates (213) that move in conjunction with the sponge wipes (206), and multiple sets of squeezing plates (214) for squeezing water from the sponge wipes (206), wherein the moving plates (213) are located inside the squeezing plates (214); The driving component (4) is used to drive the sponge eraser (206) to displacement; When one of the sets of sponge wipes (206) moves back from the working position to the non-working position, the moving plate (213) of the adjusting assembly (2) moves synchronously with the sponge wipe (206), pushing the squeezing plate (214) to swing and squeeze the set of sponge wipes (206) to dehydrate; A push plate (203) is provided on one side of the sponge wiper (206), and a connecting frame (202) is provided on one side of the push plate (203). The side of the connecting frame (202) away from the push plate (203) passes through the fixed box (8) and is fixedly installed with the movable plate (201). Two sets of fixed frames (205) are provided on the side of the movable plate (201) close to the connecting frame (202). A rack (204) is fixedly installed between the two sets of fixed frames (205), and the rack (204) meshes with one side of the drive assembly (4). A fixing post (211) is rotatably provided on one side of the extrusion plate (214). The fixing post (211) is fixedly installed inside the fixing box (8). Two sets of baffle plates (215) are fixedly installed on the outside of the fixing post (211). The two sets of baffle plates (215) are located on both sides of the extrusion plate (214), and the extrusion plate (214) is inclined. A central shaft (207) is provided on one side of the movable plate (213), and a pulley (212) is rotatably provided on the outer side of the central shaft (207). The outer side of the pulley (212) is in contact with one side of the extrusion plate (214). An operation plate (217) is provided on one side of the movable plate (213), and the operation plate (217) and the sponge (206) are arranged in parallel. A limit rod (209) is slidably provided inside the movable plate (213), and one end of the limit rod (209) is fixedly provided inside the fixed box (8).

2. Medium voltage fire resistant power cable processing apparatus according to claim 1, characterized in that, A movable disc (208) is slidably provided on the outer side of the limiting rod (209), and a fixed disc (216) is fixedly provided on the outer side of the limiting rod (209), and a first spring (210) is fixedly provided between the fixed disc (216) and the movable disc (208).

3. Medium voltage fire resistant power cable processing apparatus according to claim 1, characterized in that, The drive assembly (4) includes a rotary motor (401), which is located inside the fixed box (8). The output end of the rotary motor (401) is key-connected to a rotating column (402). A gear (403) is fixedly arranged on the outside of the rotating column (402), and the gear (403) meshes with two sets of racks (204).

4. The medium-voltage fire-resistant power cable processing equipment according to claim 1, characterized in that, The connecting frame (202) is provided with an installation component (3) inside. The push plate (203) is provided with two sets of installation holes (11) inside. The installation component (3) includes a placement plate (301). The placement plate (301) is fixedly installed inside the connecting frame (202). Two sets of second springs (303) and two sets of balance bars (304) are fixedly installed on both sides of the placement plate (301). A movable frame (302) is slidably installed on the outer side of the two sets of balance bars (304). The end of the second spring (303) away from the placement plate (301) is fixedly installed with the movable frame (302). A locking rod (305) is provided on one side of the movable frame (302), and the locking rod (305) is locked inside the installation hole (11).

5. The medium-voltage fire-resistant power cable processing equipment according to claim 1, characterized in that, Both sides of the fixed box (8) are fitted with baffles (10), and multiple sets of mounting seats (9) are respectively provided on both sides of the fixed box (8). The mounting seats (9) have slots (12) inside, and two sets of fixing components (5) are provided inside the baffles (10).

6. The medium-voltage fire-resistant power cable processing equipment according to claim 5, characterized in that, The fixing component (5) includes a connecting shaft (509) and two sets of mounting discs (501). The mounting discs (501) are fixedly disposed inside the baffle (10). The connecting shaft (509) is rotatably disposed inside the baffle (10). A turntable (502) is fixedly disposed at one end of the connecting shaft (509). A handle (503) is disposed on one side of the turntable (502). A first bevel gear (508) is disposed on the outer side of the connecting shaft (509). A movable shaft (503) is rotatably disposed inside the mounting disc (501). 10) One end of the movable shaft (510) is provided with a threaded tube (504), and a sleeve (505) is threaded onto the outside of the threaded tube (504). A connecting plate (506) is provided on one side of the sleeve (505), and a locking block (507) is provided on one side of the connecting plate (506). The locking block (507) and the locking groove (12) are parallel. A second bevel gear (512) is provided at the end of the movable shaft (510) away from the threaded tube (504), and the second bevel gear (512) meshes with the first bevel gear (508).

7. A medium-voltage fire-resistant power cable, characterized in that, The cable is manufactured by the medium-voltage fire-resistant power cable processing equipment described in any one of claims 1-6, specifically including: three sets of conductors (13), a fire-resistant layer (14) is provided on the outside of the conductors (13), an insulation layer (15) is provided on the outside of the fire-resistant layer (14), a shielding layer (16) is provided on the outside of the insulation layer (15), a filling layer (17) is provided on the outside of the three sets of shielding layers (16), a steel strip armor layer (18) is provided on the outside of the filling layer (17), a halogen-free outer sheath (19) is provided on the outside of the steel strip armor layer (18), and a rodent-proof outer sheath (20) is provided on the outside of the halogen-free outer sheath (19).

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