Crosslinked polyethylene insulated control cable

By introducing a calcium chloride block drying system and anti-loosening and anti-deformation devices into cross-linked polyethylene insulated control cables, the problem of moisture damage at cable joints was solved, enabling convenient maintenance and reliable cable operation.

CN120933708BActive Publication Date: 2025-12-09NANTONG JINFA CABLE CO LTD

Patent Information

Application Number
CN202511471246.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2025-12-09
Estimated Expiration
2045-10-15

AI Technical Summary

Technical Problem

Cross-linked polyethylene insulated control cables are prone to moisture damage at the connection points during use, leading to cumbersome inspection and maintenance with poor maintenance results.

Method used

The design incorporates an insulating shell, sealing ring, protective sleeve, tear-resistant filler, cross-linked polyethylene insulation layer, copper core, insulating tape, square shell, filter screen, and top cover, along with a calcium chloride block. The insulation shell's internal moisture is dried by replacing the calcium chloride block on the top cover. Anti-loosening and anti-deformation devices prevent the cross-linked polyethylene insulation layer from loosening and deforming. A temperature sensor monitors the cable temperature.

Benefits of technology

It enables convenient replacement of calcium chloride blocks, prevents moisture damage to the cross-linked polyethylene insulation layer, avoids inconvenience in cable maintenance, prevents short circuits caused by cable loosening, deformation, and excessive temperature, and improves the reliability of cable use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a crosslinked polyethylene insulated control cable and relates to the technical field of crosslinked polyethylene insulated cables.The application comprises an insulating shell, a protection sleeve and an insulating adhesive tape.The middle of the top surface of the insulating shell is provided with a notch, and the middle of the left and right sides of the insulating shell is provided with a sealing ring.The protection sleeve is fixed on the inner wall of the sealing ring.The inner wall of the protection sleeve is provided with tear-resistant filling.The inner wall of the tear-resistant filling is provided with a plurality of crosslinked polyethylene insulation layers.The inner wall of the crosslinked polyethylene insulation layer is provided with a copper core.The copper core is fixedly connected at the end close to each other.The insulating adhesive tape is wound on the outer wall of the copper core.The calcium chloride block in the top cover can be conveniently replaced by maintenance personnel, so that the problem that the crosslinked polyethylene insulated control cable is inconvenient to replace the calcium chloride block during maintenance and causes poor maintenance effect of the crosslinked polyethylene insulated control cable is avoided.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cross-linked polyethylene insulated cables, in particular to a cross-linked polyethylene insulated control cable. BACKGROUND

[0002] The cross-linked polyethylene insulated control cable is a kind of cable that can significantly improve the high temperature resistance of the cable by converting the linear molecular structure of polyethylene into a three-dimensional network structure, and the long-term allowable operating temperature of the cable conductor can reach 90 DEG C, which can withstand a high temperature of 250 DEG C, and the high temperature resistance is stronger than that of ordinary polyvinyl chloride insulated cables (usually 70 DEG C), reducing the risk of insulation aging or failure caused by overheating.

[0003] The patent No. CN219105785U discloses a cross-linked polyethylene insulated control cable, which comprises a cross-linked polyethylene insulated outer sleeve, a connecting terminal block is fixedly arranged at the left and right ends of the cross-linked polyethylene insulated outer sleeve, a buffer outer sleeve is fixedly arranged on the inner wall of the cross-linked polyethylene insulated outer sleeve, an installation block is fixedly arranged on the inner wall of the buffer outer sleeve, an installation cavity is arranged in the installation block, and an installation device for preventing the wire from being separated is arranged in the installation cavity; the patent provides support force through the support column, ensures that the wire has strong resistance when subjected to tensile force or shear force, enhances the overall bending strength of the cable, and connects the isolation sleeve and the installation block through the locking block and the fixed connection block, so that the wire and the support column cannot be easily pulled out of the installation cavity, and the situation that the wire is pulled out of the protective outer sleeve is prevented.

[0004] However, the cross-linked polyethylene insulated control cable has the following problems: during use, the connection of the cross-linked polyethylene insulated control cable is prone to moisture damage, which requires tedious maintenance by maintenance personnel, thereby causing poor maintenance effect of the cross-linked polyethylene insulated control cable, therefore, the cross-linked polyethylene insulated control cable is proposed. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a cross-linked polyethylene insulated control cable, which solves the problems raised in the background art.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: the cross-linked polyethylene insulated control cable comprises: an insulating shell, a notch is formed in the middle of the top surface of the insulating shell, a sealing ring is arranged in the middle of the left and right sides of the insulating shell, a protective sleeve is fixed on the inner wall of the sealing ring, an anti-tear filler is arranged on the inner wall of the protective sleeve, a plurality of cross-linked polyethylene insulation layers are arranged on the inner wall of the anti-tear filler, a copper core is arranged on the inner wall of the cross-linked polyethylene insulation layer, the copper cores are fixedly connected at the ends close to each other, an insulating tape is wound on the outer wall of the copper core, a square shell is fixed at the bottom end of the inside of the insulating shell, a square opening is formed on the front and back surfaces of the square shell, a filter screen is arranged on the inner wall of the square opening of the square shell, the square shell is located between the plurality of cross-linked polyethylene insulation layers, a top cover is fixed on the top surface of the square shell, the outer wall of the top cover is in sliding contact with the notch of the insulating shell, a calcium chloride block is fixedly installed at the top end of the inside of the top cover, the calcium chloride block on the top cover is replaced, the top cover is inserted into the notch of the insulating shell, the top cover drives the calcium chloride block to move downward, the calcium chloride block enters the square shell, and the calcium chloride block is used for drying the moisture in the inside of the insulating shell.

[0007] According to the above technical scheme, the insulating shell comprises shell one and shell two, the shell one is arranged above the shell two, a bolt hole is formed in the edge of the top surface of the shell one, a bolt hole is formed in the edge of the bottom surface of the shell two, and the shell one and the shell two are fixedly connected by bolts.

[0008] According to the above technical scheme, the square shell top surface four edges are provided with bolt holes, the top cover top surface middle is fixed with a handle, the top cover top surface four edges are provided with bolt holes, and the top cover is fixed above the square shell by bolts.

[0009] According to the above technical scheme, the insulating tape is located on the side away from each other of the filter screen, the calcium chloride block is located in the middle of the inside of the square shell, and the square shell is used for supporting below the calcium chloride block.

[0010] According to the above technical scheme, the top cover inside top end is provided with an anti-loose device, the anti-loose device is used for abutting against the end surface of the anti-tear filler, the side away from each other of the anti-loose device is provided with an anti-deformation device, and the anti-deformation device is used for supporting the anti-tear filler.

[0011] According to the technical scheme, the vertical convex plates are fixed at the top ends inside the top cover respectively, are located at the left and right sides of the calcium chloride block respectively, and are provided with semicircular blocks at the bottom sides away from each other.

[0012] According to the technical scheme, the semicircular block outer walls of the convex arc rods are located on the movement tracks of the semicircular block outer walls of the vertical convex plates, and the springs are sleeved on the convex arc rods respectively.

[0013] According to the technical scheme, the bottom sides away from each other of the ring plates are respectively fixed with vertical plates, the bottom surfaces of the vertical plates are respectively fixed with sliding columns, the inside bottom ends of the insulating shells are fixed with two U-shaped groove plates, the outer walls of the sliding columns are in sliding connection with the inner walls of the U-shaped groove plates, the ring plates drive the vertical plates to move to both sides, the vertical plates drive the sliding columns to move to both sides, and the sliding columns slide to both sides in the U-shaped groove plates.

[0014] According to the technical scheme, the anti-deformation device comprises: ring rods, the ring rods are respectively fixed at the bottom sides away from each other of the vertical plates, the front surfaces of the ring rods are respectively provided with a through hole, U-shaped bent rods, the U-shaped bent rods are respectively fixed on the inner walls of the through holes of the ring rods, concave blocks, the concave blocks are respectively fixed in pairs on the outer walls of the U-shaped bent rods, ring frames are respectively fixed on the opposite surfaces of the concave blocks, the inner walls of the ring frames are in sliding contact with the outer walls of the tear-resistant filling materials, the outer walls of the ring frames are in sliding connection with the inner walls of the insulating shells, the vertical plates drive the ring rods to move to both sides, the ring rods drive the U-shaped bent rods to move to both sides, the U-shaped bent rods drive the concave blocks to move to both sides, and the concave blocks drive the ring frames to move to both sides, and the ring frames are used for supporting the tear-resistant filling materials.

[0015] According to the technical scheme, the bottom surfaces of the ring rods are respectively penetrated and fixed with an L-shaped rod, the ends away from each other of the L-shaped rod are respectively fixed with a back-shaped block, the inner walls of the back-shaped blocks are respectively fixed with a temperature sensor, and the temperature sensor is located below the crosslinked polyethylene insulation layer.

[0016] The application provides a crosslinked polyethylene insulated control cable.

[0017] (1) The application cooperates with calcium chloride blocks through the insulating shell, sealing ring, protective sleeve, tear-resistant filler, cross-linked polyethylene insulation layer, copper core, insulating tape, square shell, filter screen and top cover, replaces the calcium chloride blocks on the top cover, inserts the top cover into the slot of the insulating shell, drives the calcium chloride blocks to move downward, and absorbs the moisture in the insulating shell, so that the control cable in the insulating shell is dried, and the calcium chloride blocks in the top cover are conveniently replaced by maintenance personnel, and the cross-linked polyethylene insulated control cable is prevented from being inconveniently replaced, thereby causing poor maintenance effect of the cross-linked polyethylene insulated control cable;

[0018] (2) The setting of the anti-loose device enables the vertical lug plate, the convex arc rod, the round hole plate and the ring plate to cooperate with the spring, the convex arc rod slides in the square shell to two sides, the convex arc rod drives the ring plate to slide to two sides, the ring plate pulls the spring, the convex arc rod drives the round hole plate to move to two sides, the round hole plate is respectively abutted against the end faces of the tear-resistant filler, the tear-resistant filler pulls the cross-linked polyethylene insulation layer, and the cross-linked polyethylene insulation layer is prevented from being loosened and contacted to cause heat accumulation on the surface of the cross-linked polyethylene insulation layer;

[0019] (3) The setting of the anti-loose device enables the vertical plate and the slide column to cooperate with the U-shaped groove plate, the ring plate drives the vertical plate to move to two sides, the vertical plate drives the slide column to move to two sides, the slide column slides in the U-shaped groove plate to two sides, and the round hole plate is prevented from being scraped on the surface of the cross-linked polyethylene insulation layer due to unstable movement;

[0020] (4) The setting of the anti-deformation device enables the ring rod, the U-shaped bent rod and the concave block to cooperate with the ring frame, the vertical plate drives the ring rod to move to two sides, the ring rod drives the U-shaped bent rod to move to two sides, the U-shaped bent rod drives the concave block to move to two sides, the concave block drives the ring frame to move to two sides, the ring frame supports the tear-resistant filler, and the tear-resistant filler is prevented from being drooped to cause the cross-linked polyethylene insulation layer to be bent and deformed;

[0021] (5) The setting of the anti-deformation device enables the L-shaped rod and the back-shaped block to cooperate with the temperature sensor, the ring rod drives the L-shaped rod to move to two sides, the L-shaped rod drives the back-shaped block to move to two sides, the back-shaped block drives the temperature sensor to move to two sides, the temperature sensor monitors the temperature of the surface of the cross-linked polyethylene insulation layer in real time, and the cable end is prevented from being short-circuited due to too high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the whole application;

[0023] Figure 2 It is a schematic view of the internal components of the application;

[0024] Figure 3 It is a sectional view of the insulating shell of the application;

[0025] Figure 4 Figure is a schematic diagram of the anti-loose device of the present application;

[0026] Figure 5 Figure is a schematic diagram of the anti-loose device of the present application Figure 4 Figure is a partial enlarged schematic diagram of A in the present application;

[0027] Figure 6 Figure is a schematic diagram of the anti-deformation device of the present application;

[0028] Figure 7 Figure is a partial enlarged schematic diagram of B in the present application Figure 6

[0029] In the figure: 1, insulating shell; 2, sealing ring; 3, protective sleeve; 4, tear-resistant filler; 5, cross-linked polyethylene insulation layer; 6, copper core; 7, insulating tape; 8, square shell; 9, filter screen; 10, top cover; 1001, handle; 11, calcium chloride block; 12, anti-loose device; 121, vertical lug plate; 122, convex arc rod; 123, round hole plate; 124, ring plate; 125, spring; 126, vertical plate; 127, sliding column; 128, U-shaped groove plate; 13, anti-deformation device; 131, ring rod; 132, U-shaped bent rod; 133, concave block; 134, ring frame; 135, L-shaped rod; 136, back-shaped block; 137, temperature sensor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0031] Please refer to Figures 1-7 An embodiment of the present application is: a cross-linked polyethylene insulated control cable, comprising: an insulating shell 1, the insulating shell 1 comprises shell one and shell two, the shell one is arranged above the shell two, a bolt hole is formed in the top edge of the shell one, a bolt hole is formed in the bottom edge of the shell two, and the shell one and the shell two are fixedly connected through bolts;

[0032] A notch is formed in the middle of the top surface of the insulating shell 1, a sealing ring 2 and a protective sleeve 3 are arranged in the middle of the left and right sides of the insulating shell 1, the protective sleeve 3 is fixedly arranged on the inner wall of the sealing ring 2, the inner wall of the protective sleeve 3 is provided with a tear-resistant filler 4, the inner wall of the tear-resistant filler 4 is provided with a plurality of cross-linked polyethylene insulation layers 5, the inner wall of the cross-linked polyethylene insulation layer 5 is provided with a copper core 6, the copper core 6 is fixedly connected at the end close to each other, an insulating tape 7 is wound on the outer wall of the copper core 6;

[0033] ​The square shell 8 is fixed at the bottom end inside the insulating shell 1, and a square opening is formed on the front and back of the square shell 8. A filter screen 9 is arranged on the inner wall of the square opening of the square shell 8. The insulating tape 7 is arranged on the side away from each other of the filter screen 9. The square shell 8 is located between the cross-linked polyethylene insulation layers 5. The top cover 10 is fixed on the top surface of the square shell 8. The outer wall of the top cover 10 is in sliding contact with the groove of the insulating shell 1. The top surface of the square shell 8 is provided with bolt holes on the four sides. The top surface of the top cover 10 is fixed with a handle 1001 in the middle. The top surface of the top cover 10 is provided with bolt holes on the four sides. The top cover 10 is fixed on the square shell 8 by bolts.

[0034] The calcium chloride block 11 is fixedly installed at the top end inside the top cover 10. The calcium chloride block 11 is located in the middle of the square shell 8. The square shell 8 is used to support the calcium chloride block 11 below. The calcium chloride block 11 is used to dry the moisture inside the insulating shell 1.

[0035] When the cable is used, the maintenance personnel opens the insulating shell 1. The maintenance personnel inserts the protective sleeve 3 into the sealing ring 2 respectively. The sealing ring 2 drives the tear-resistant filler 4 to move to the middle. The tear-resistant filler 4 drives the cross-linked polyethylene insulation layer 5 to move to the middle. The cross-linked polyethylene insulation layer 5 drives the copper core 6 to move to the middle. The maintenance personnel fixes and connects the copper core 6 end to end and winds the insulating tape 7. Then the shell one and the shell two are combined and fixed by bolts. The connection of the two sections of the control cable is completed. The maintenance personnel unscrews the bolts on the top cover 10. The maintenance personnel pulls the top cover 10 upward by the handle 1001. The top cover 10 drives the calcium chloride block 11 to move upward. The maintenance personnel replaces the calcium chloride block 11 on the top cover 10. The maintenance personnel inserts the top cover 10 into the groove of the insulating shell 1. The top cover 10 moves downward in the groove of the insulating shell 1. The top cover 10 drives the calcium chloride block 11 to move downward. The calcium chloride block 11 enters the square shell 8. The moisture in the insulating shell 1 penetrates the filter screen 9. The moisture enters the square shell 8. The calcium chloride block 11 absorbs the water in the moisture. The control cable in the insulating shell 1 is dried. The maintenance personnel can conveniently replace the calcium chloride block 11 in the top cover 10. Thus, the problem that the cross-linked polyethylene insulation control cable is not maintained well due to the inconvenience of replacing the calcium chloride block 11 in the process of maintenance is avoided.

[0036] The anti-loose device 12 is arranged at the top end inside the top cover 10. The anti-loose device 12 is used to abut against the end surface of the tear-resistant filler 4. The anti-deformation device 13 is arranged on the side away from each other of the anti-loose device 12. The anti-deformation device 13 is used to support the tear-resistant filler 4.

[0037] Working principle: open the insulating shell 1, insert the protective sleeve 3 into the sealing ring 2 respectively, the sealing ring 2 drives the tear-resistant filler 4 to move to the middle, the tear-resistant filler 4 drives the crosslinked polyethylene insulation layer 5 to move to the middle, the crosslinked polyethylene insulation layer 5 drives the copper core 6 to move to the middle, the copper core 6 is fixedly connected end to end and is wound on the insulating tape 7, then the shell one and the shell two are combined and fixed with bolts, the bolts on the top cover 10 are unscrewed, the top cover 10 is pulled upward by the handle 1001, the top cover 10 drives the calcium chloride block 11 to move upward, the calcium chloride block 11 on the top cover 10 is replaced, then the top cover 10 is inserted into the slot of the insulating shell 1, the top cover 10 moves downward in the slot of the insulating shell 1, the top cover 10 drives the calcium chloride block 11 to move downward, and the calcium chloride block 11 enters the square shell 8.

[0038] Please refer to Figures 1-7 On the basis of the above embodiment, in another embodiment of the application, the vertical convex plate 121 is fixed at the inner top end of the top cover 10 respectively, the vertical convex plate 121 is located on the left and right sides of the calcium chloride block 11 respectively, the bottom of the side of the vertical convex plate 121 away from each other is provided with a semicircular block, the convex arc rod 122 is respectively penetrated and slidably installed on the left and right bottom of the square shell 8, the end of the convex arc rod 122 close to each other is provided with a semicircular block, the semicircular block outer wall of the convex arc rod 122 is on the movement track of the semicircular block outer wall of the vertical convex plate 121, the spring 125 is sleeved on the convex arc rod 122 respectively, the round hole plate 123 is fixed on the end of the convex arc rod 122 away from each other, the inner wall of the round hole plate 123 is in sliding contact with the outer wall of the crosslinked polyethylene insulation layer 5, the ring plate 124 is fixed on the outer wall of the convex arc rod 122 respectively, the spring 125 is arranged between the ring plate 124 and the outer wall of the square shell 8, and the round hole plate 123 abuts against the end surface of the tear-resistant filler 4 respectively.

[0039] When the top cover 10 drives the calcium chloride block 11 to move downward, the top cover 10 drives the vertical convex plate 121 to move downward, the vertical convex plate 121 contacts the convex arc rod 122 in the process of moving downward, under the action of extrusion force, the convex arc rod 122 slides to both sides in the square shell 8, the convex arc rod 122 drives the ring plate 124 to slide to both sides, the ring plate 124 pulls the spring 125, the spring 125 starts to store energy, the convex arc rod 122 is convenient for resetting, the convex arc rod 122 drives the round hole plate 123 to move to both sides, the round hole plate 123 slides on the surface of the crosslinked polyethylene insulation layer 5, and the round hole plate 123 abuts against the end surface of the tear-resistant filler 4 respectively. The crosslinked polyethylene insulation layer 5 is pulled by the tear-resistant filler 4, so that the crosslinked polyethylene insulation layer 5 will not be loose in contact, thereby avoiding the problem that the crosslinked polyethylene insulation layer 5 of the crosslinked polyethylene insulation control cable is loose in contact and heat is easily accumulated on the surface of the crosslinked polyethylene insulation layer 5 in the process of use.

[0040] A vertical plate 126 is fixed to the bottom of the side of the ring plate 124 that is far apart from each other. A sliding post 127 is fixed to the bottom surface of the vertical plate 126. Two U-shaped groove plates 128 are fixed to the bottom inside the insulating shell 1. The outer wall of the sliding post 127 is slidably connected to the inner wall of the U-shaped groove plate 128.

[0041] While the vertical plate 126 moves the sliding column 127 to both sides, the vertical plate 126 moves the ring rod 131 to both sides, the ring rod 131 moves the U-shaped bent rod 132 to both sides, the U-shaped bent rod 132 moves the concave block 133 to both sides, the concave block 133 moves the ring frame 134 to both sides. During the movement, the ring frame 134 comes into contact with the surface of the tear-resistant filler 4 and supports the tear-resistant filler 4, thereby avoiding the problem of the tear-resistant filler 4 sagging and causing the cross-linked polyethylene insulation layer 5 to bend and deform during the use of the cross-linked polyethylene insulated control cable.

[0042] The anti-deformation device 13 includes: a ring rod 131, which is fixed to the bottom of the vertical plate 126 on the side away from each other. Each ring rod 131 has a through hole on its front side. A U-shaped bent rod 132 is fixed to the inner wall of the through hole of the ring rod 131. A concave block 133 is fixed to the outer wall of the U-shaped bent rod 132 in pairs. A ring frame 134 is fixed to the opposite side of the concave block 133. The inner wall of the ring frame 134 is in sliding contact with the outer wall of the tear-resistant filler 4. The outer wall of the ring frame 134 is slidably connected to the inner wall of the insulating shell 1. The ring frame 134 is used to support the tear-resistant filler 4.

[0043] While the vertical plate 126 moves the sliding column 127 to both sides, the vertical plate 126 moves the ring rod 131 to both sides, the ring rod 131 moves the U-shaped bent rod 132 to both sides, the U-shaped bent rod 132 moves the concave block 133 to both sides, the concave block 133 moves the ring frame 134 to both sides. During the movement, the ring frame 134 comes into contact with the surface of the tear-resistant filler 4 and supports the tear-resistant filler 4, thereby avoiding the problem of the tear-resistant filler 4 sagging and causing the cross-linked polyethylene insulation layer 5 to bend and deform during the use of the cross-linked polyethylene insulated control cable.

[0044] An L-shaped rod 135 is passed through and fixed to the bottom surface of the ring rod 131. A U-shaped block 136 is fixed to one of the opposite ends of the L-shaped rod 135. A temperature sensor 137 is fixed to the inner wall of the U-shaped block 136. The temperature sensor 137 is located below the cross-linked polyethylene insulation layer 5.

[0045] When the ring rod 131 drives the U-shaped rod 132 to move to both sides, the ring rod 131 drives the L-shaped rod 135 to move to both sides, the L-shaped rod 135 drives the back-shaped block 136 to move to both sides, the back-shaped block 136 drives the temperature sensor 137 to move to both sides, the temperature sensor 137 monitors the temperature of the surface of the crosslinked polyethylene insulation layer 5 in real time, and the temperature sensor 137 transmits the temperature data of the surface of the crosslinked polyethylene insulation layer 5 to the computer terminal through a wireless network, so that the problem of cable end short circuit caused by too high temperature of the cable end of the crosslinked polyethylene insulation control cable in the use process is avoided.

[0046] Working principle: the top cover 10 drives the vertical convex plate 121 to move downwards, the vertical convex plate 121 contacts the convex arc rod 122 in the process of moving downwards, under the action of extrusion force, the convex arc rod 122 slides to both sides in the square shell 8, the convex arc rod 122 drives the ring plate 124 to slide to both sides, the ring plate 124 pulls the spring 125, the convex arc rod 122 drives the circular hole plate 123 to move to both sides, the circular hole plate 123 slides on the surface of the crosslinked polyethylene insulation layer 5, and the circular hole plate 123 is arranged on the end surface of the tear-resistant filler 4;

[0047] The ring plate 124 drives the vertical plate 126 to move to both sides, the vertical plate 126 drives the sliding column 127 to move to both sides, and the sliding column 127 slides to both sides in the U-shaped groove plate 128.

[0048] The vertical plate 126 drives the ring rod 131 to move to both sides, the ring rod 131 drives the U-shaped rod 132 to move to both sides, the U-shaped rod 132 drives the concave block 133 to move to both sides, the concave block 133 drives the ring frame 134 to move to both sides, and the ring frame 134 contacts the surface of the tear-resistant filler 4 in the moving process.

[0049] The ring rod 131 drives the L-shaped rod 135 to move to both sides, the L-shaped rod 135 drives the back-shaped block 136 to move to both sides, and the back-shaped block 136 drives the temperature sensor 137 to move to both sides.

[0050] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A crosslinked polyethylene insulated control cable comprising: Insulating shell (1), the insulating shell (1) top middle is provided with a notch, the insulating shell (1) left and right middle is provided with sealing ring (2); Protective sleeve (3), the protective sleeve (3) is respectively fixed on the inner wall of sealing ring (2), the inner wall of protective sleeve (3) is provided with anti-tear filler (4), the inner wall of anti-tear filler (4) is provided with several crosslinked polyethylene insulation layer (5), the inner wall of crosslinked polyethylene insulation layer (5) is provided with copper core (6), the end of copper core (6) is fixedly connected with each other; Insulating tape (7), the insulating tape (7) is wound on the outer wall of copper core (6); Square shell (8), the square shell (8) is fixed in the inside bottom of insulating shell (1), the square shell (8) is provided with a square opening on the front and back, the inner wall of square opening of square shell (8) is provided with filter screen (9), the square shell (8) is located between several crosslinked polyethylene insulation layer (5); Top cover (10), the top cover (10) is fixed on the top of square shell (8), the outer wall of top cover (10) is in sliding contact with the notch of insulating shell (1); Calcium chloride block (11), the calcium chloride block (11) is fixedly installed in the inside top of top cover (10), the calcium chloride block (11) is used for drying the humidity in the inside of insulating shell (1); The inside top of top cover (10) is provided with anti-loosening device (12), the anti-loosening device (12) is used for abutting against the end surface of anti-tear filler (4); The side of anti-loosening device (12) is provided with anti-deformation device (13), the anti-deformation device (13) is used for supporting anti-tear filler (4); The anti-loosening device (12) comprises: vertical convex plate (121), the vertical convex plate (121) is respectively fixed in the inside top of top cover (10), the vertical convex plate (121) is respectively located on the left and right sides of calcium chloride block (11), the bottom of the side of vertical convex plate (121) is provided with half-arc block; Convex arc rod (122), the convex arc rod (122) is respectively penetrated and slidably installed in the left and right bottom of square shell (8), the end of convex arc rod (122) is provided with a half-arc block; Round hole plate (123), the round hole plate (123) is fixed on the end of convex arc rod (122) away from each other, the inner wall of round hole plate (123) is in sliding contact with the outer wall of crosslinked polyethylene insulation layer (5); Ring plate (124), the ring plate (124) is respectively fixed on the outer wall of convex arc rod (122), the spring (125) is arranged between the outer wall of ring plate (124) and the outer wall of square shell (8); The round hole plate (123) is respectively abutted on the end surface of anti-tear filler (4); The bottom of the side of ring plate (124) is respectively fixed with a vertical plate (126), the bottom of vertical plate (126) is respectively fixed with a sliding column (127), the inside bottom of insulating shell (1) is fixed with two U-shaped groove plates (128), the outer wall of sliding column (127) is in sliding connection with the inner wall of U-shaped groove plate (128); The anti-deformation device (13) comprises ring rods (131) fixed at the bottom of the sides of the vertical plates (126) away from each other, and a through hole is formed in the front of each ring rod (131); U-shaped bent rods (132) are fixed on the inner walls of the through holes of the ring rods (131); Concave blocks (133) are fixed on the outer walls of the U-shaped bent rods (132) in pairs, and ring frames (134) are fixed on the opposite surfaces of the concave blocks (133), the inner walls of the ring frames (134) are in sliding contact with the outer walls of the tear-resistant filler (4), the outer walls of the ring frames (134) are in sliding connection with the inner walls of the insulating shell (1), and the ring frames (134) are used for supporting the tear-resistant filler (4).

2. The crosslinked polyethylene insulated control cable according to claim 1, characterized in that: The insulating shell (1) comprises a shell one and a shell two, the shell one is arranged above the shell two, bolt holes are formed in the top edge of the shell one and the bottom edge of the shell two, and the shell one and the shell two are fixedly connected by bolts.

3. The crosslinked polyethylene insulated control cable according to claim 2, characterized in that: Bolt holes are formed in the top surface of the square shell (8), a handle (1001) is fixed in the middle of the top surface of the top cover (10), bolt holes are formed in the four edges of the top surface of the top cover (10), and the top cover (10) is fixed above the square shell (8) by bolts.

4. The crosslinked polyethylene insulated control cable according to claim 3, characterized in that: The insulating tape (7) is arranged on the sides of the filter screens (9) away from each other, the calcium chloride block (11) is arranged in the middle of the interior of the square shell (8), and the square shell (8) is used for supporting the calcium chloride block (11) below.

5. The crosslinked polyethylene insulated control cable according to claim 4, characterized in that: The outer walls of the semicircular blocks of the convex arc rods (122) are on the movement trajectories of the outer walls of the semicircular blocks of the vertical convex plates (121), and springs (125) are sleeved on the convex arc rods (122).

6. The crosslinked polyethylene insulated control cable according to claim 5, characterized in that: L-shaped rods (135) are fixed on the bottoms of the ring rods (131), the ends of the L-shaped rods (135) away from each other are fixed with return blocks (136), temperature sensors (137) are fixed on the inner walls of the return blocks (136), and the temperature sensors (137) are arranged below the cross-linked polyethylene insulation layer (5).

Citation Information

Patent Citations

  • Crosslinked polyethylene insulated control cable

    CN219105785U

  • High-performance tensile tear-resistant flame-retardant cable and manufacturing method thereof

    CN111081418A

  • Crosslinked polyethylene insulated power cable with anti-seismic function

    CN120708977A

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