Low-altitude economical cable sleeve thermal shrinkage device

Abstract

The invention is suitable for the technical field of cable production, and provides a low-altitude economic cable sleeve thermal shrinkage device, which comprises a base station, and also comprises a position control assembly which is arranged on the base station, is provided with two sliding seats, and is used for driving the two sliding seats to move independently; the straightening assembly and the positioning and clamping assembly are fixed to the two sliding seats respectively, the straightening assembly and the positioning and clamping assembly are the same in structure, the positioning and clamping assembly is used for positioning and clamping a cable, and the straightening assembly is used for straightening the cable; the heat shrinkage assembly is arranged between the positioning and clamping assembly and the straightening assembly and connected with the base station through a supporting assembly, and the supporting assembly is used for conducting fixed supporting or controllable rotating supporting on the heat shrinkage assembly. The device has the advantages of being reasonable in structural design, high in adaptability, good in thermal shrinkage effect and capable of effectively protecting the cable and improving the thermal shrinkage quality.

Description

Technical Field

[0001] The invention belongs to the technical field of cable production, and in particular relates to a low-altitude economical cable casing heat shrinkage device. Background Art

[0002] During the installation and maintenance of low-altitude economic cables, heat shrinkage of cable sheaths is a key step in ensuring the insulation and protection of cable connection points.

[0003] Traditional heat shrinking operations mostly rely on manual operations or semi-automated equipment. These methods have difficulty achieving precise distance control and uniform heating when processing cables of different specifications, resulting in unstable heat shrinking quality, low efficiency, and even damage to the cables.

[0004] Especially in low-altitude economic application scenarios, there are higher requirements for the safety, durability and construction efficiency of cable joints, and existing technologies are difficult to meet such diverse needs.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a low-altitude economical cable casing heat shrinkage device to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] The purpose of the present invention is to provide a low-altitude economical cable casing heat shrinkage device, aiming to solve the problems mentioned in the above background technology.

[0007] The present invention is achieved by providing a low-altitude economical cable casing heat shrinkage device, comprising a base and further comprising: A position control assembly is mounted on the base, and two sliding seats are mounted on the position control assembly. The position control assembly is used to drive the two sliding seats to move positions independently; The straightening assembly and the positioning and clamping assembly are respectively fixed on the two sliding seats. The straightening assembly and the positioning and clamping assembly have the same structure. The positioning and clamping assembly is used to position and clamp the cable, and the straightening assembly is used to straighten the cable. A heat shrink assembly is provided between the positioning and clamping assembly and the straightening assembly, and is connected to the base via a support assembly, wherein the support assembly is used to provide fixed support or controllable rotation support for the heat shrink assembly; In which, the heat shrink assembly includes a heat shrink tube, and a plurality of heat protection tubes are circumferentially distributed on the inner end of the heat shrink tube. A heating rod is slidably provided in the heat protection tube, and a linkage rod is fixed to the end of the heating rod away from the heat protection tube. The linkage rod is slidably connected to the ring, and the ring is also slidably connected to the heat shrink tube. A first telescopic cylinder for driving the ring to move is also fixed on the outer side of the heat shrink tube; a second telescopic cylinder is also circumferentially distributed on the heat shrink tube and fixed corresponding to the heat protection tube, and the telescopic core shaft of the second telescopic cylinder is fixedly connected to the heat protection tube.

[0008] According to a further technical solution, the heat shrink tube is a horizontally arranged cylindrical tube structure; the heat shrink tube is provided with a position adjustment opening corresponding to the linkage rod and for the linkage rod to pass through.

[0009] According to a further technical solution, a plurality of first telescopic cylinders are evenly distributed circumferentially parallel to the heating rod, and a cylinder body of the first telescopic cylinder is fixedly connected to the outer wall of the heat shrink tube via a cylinder body support.

[0010] According to a further technical solution, a sliding groove is provided on the inner side of the collar and is slidably connected to the linkage rod.

[0011] According to a further technical solution, the support assembly includes a first fixing frame, and the first fixing frames are fixed on both sides of the heat shrink tube, and the lower end of the first fixing frame is fixed on the base.

[0012] A further technical solution is that the support assembly includes a second fixed ring, a passive gear, a load-bearing ring, a second motor, a motor support, a driving gear and a second fixed frame. A second fixed ring is fixed to the outer side of the heat shrink tube, and a load-bearing ring is rotatably installed on the outer side of the second fixed ring. Second fixed frames are fixed on both sides of the lower part of the load-bearing ring, and the lower end of the second fixed frame is fixed on the base. A passive gear is also fixed on the second fixed ring, and the passive gear is meshed with the driving gear fixed to the output end of the second motor. The second motor is connected and fixed to the load-bearing ring or the second fixed frame through the motor support.

[0013] According to a further technical solution, the second motor is used to drive the heat shrink tube to rotate reciprocatingly.

[0014] A further technical solution is that the straightening assembly includes a first fixed ring fixed to the upper end of the sliding seat, a slewing ring is rotatably installed on one side of the first fixed ring, and a plurality of movable slots are circumferentially distributed on the side wall of the slewing ring. A sliding sleeve is rotatably supported in the movable slot by a second support shaft, and a clamping arm is slidably provided on the inner side of the sliding sleeve. The outer end of the clamping arm is rotatably connected to the first fixed ring through a first support shaft, and a wheel frame is fixed to the inner end of the clamping arm, and a clamping wheel is rotatably installed on the wheel frame; an arc-shaped telescopic cylinder is also fixed on the first fixed ring, and the telescopic core shaft of the arc-shaped telescopic cylinder is fixedly connected to the slewing ring.

[0015] A further technical solution is that the position control component includes two end fixing seats fixed on the base, a screw rod is rotatably installed between the two end fixing seats, a first motor connected to the screw rod is fixed on one of the end fixing seats, guide rails are provided on both sides of the screw rod, the guide rails are fixedly connected to the base and the end fixing seats, a through hole for the screw rod to slide through and a guide slot for the guide rail to slide through are provided on the sliding seat, a transmission cavity connected to the through hole is provided on the inner side of the sliding seat, a third telescopic cylinder is fixed in the transmission cavity, and a transmission plate that can be threadedly connected to the screw rod is fixed on the end of the telescopic core shaft of the third telescopic cylinder.

[0016] A further technical solution is that L-shaped cavities are opened in the sliding seat on both sides of the transmission cavity, and the two ends of the L-shaped cavity are respectively connected to the side surface of the transmission cavity and the top of the guide slot, and an L-shaped rod is fixed on both sides of the transmission plate, and the horizontal part and the vertical part of the L-shaped rod are arranged corresponding to the L-shaped cavity, and the vertical part of the L-shaped rod is slidingly connected to the vertical part of the L-shaped cavity; when the transmission plate is threadedly connected to the screw rod, the lower end of the vertical part of the L-shaped rod is separated from the guide rail; when the transmission plate is separated from the screw rod, the lower end of the vertical part of the L-shaped rod is abutted and fixed to the guide rail.

[0017] The present invention provides a low-altitude economical cable casing heat shrink device, which has the following beneficial effects: Through the arrangement of the heat shrinkage component, the second telescopic cylinder can drive the radial movement of the heat protection tube, adjust the distance between the heating rod and the cable, and adapt to different types of cables for heat shrinkage operations. The first telescopic cylinder can drive the ring to move axially, thereby pulling the heating rod relative to the heat protection tube through the linkage rod, adjusting the length of the part of the heating rod extending out of the heat protection tube, and adapting to the use of heat shrinkage tubes of different lengths to avoid damage to the cable by the heating rod. Moreover, the linkage rod can adapt to the radial movement of the heating rod, and at the same time satisfy the movement of the ring to drive it, so that the heating rod moves accordingly; the support component can provide fixed support or controllable rotation support for the heat shrinkage component, and different methods can be selected as needed. When the support component drives the heat shrinkage component to rotate, the heating rod can move along the surface of the cable, thereby improving the uniformity of heating of the heat shrinkage tube, thereby improving the overall quality of heat shrinkage.

[0018] In addition, the positioning and clamping assembly can position and clamp the cable, that is, adjust the position of the cable relative to the heat shrink assembly so that the heating position of the heat shrink assembly and the heat shrink tube correspond to the position where the cable needs to be heat shrunk. Then, according to the length of the remaining cable, you can choose to straighten the cable through the straightening assembly to make the cable, heat shrink tube and heat shrink tube coaxial, thereby improving the overall quality of heat shrinkage; the position control assembly can be used to drive the two sliding seats to move independently as needed, thereby changing the position of the positioning and clamping assembly and the straightening assembly as needed to meet the adaptability requirements of processing.

[0019] In summary, the present invention has the advantages of reasonable structural design, strong adaptability, good heat shrinkage effect, and can effectively protect cables and improve heat shrinkage quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of a low-altitude economical cable casing heat shrink device provided by an embodiment of the present invention; Figure 2 A schematic structural diagram of a heat shrink assembly in a low-altitude economical cable casing heat shrink device provided by an embodiment of the present invention; Figure 3 for Figure 2 Another perspective structural diagram; Figure 4 for Figure 2 Axonometric drawing of Figure 5 A schematic structural diagram of the straightening component portion of the low-altitude economical cable casing heat shrink device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the main structure of a low-altitude economical cable casing heat shrink device provided by an embodiment of the present invention; Figure 7 for Figure 6 Axonometric drawing in the middle AA direction; Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part B; Figure 9 A schematic diagram of another installation method of the heat shrink assembly in the low-altitude economical cable casing heat shrink device provided by an embodiment of the present invention; Figure 10 for Figure 9 Another perspective structural diagram.

[0021] In the figure: 1-base, 2-end fixed seat, 3-guide rail, 4-sliding seat, 5-first fixed frame, 6-screw, 7-first motor, 8-cable, 9-straightening assembly, 10-heat shrinkage assembly, 11-positioning clamping assembly, 12-position control assembly, 13-heat shrinkage tube, 14-first telescopic cylinder, 15-cylinder support, 16-second telescopic cylinder, 17-position adjustment opening, 18-ring, 19-heating rod, 20-linkage rod, 21-heat protection tube, 22-first Fixed ring, 23-arc-shaped telescopic cylinder, 24-slewing ring, 25-movable slot, 26-first support shaft, 27-clamping arm, 28-sliding sleeve, 29-wheel frame, 30-clamping wheel, 31-transmission chamber, 32-transmission plate, 33-third telescopic cylinder, 34-L-shaped chamber, 35-L-shaped rod, 36-guide slot, 37-second fixed ring, 38-passive gear, 39-carrying ring, 40-second motor, 41-motor support, 42-drive gear, 43-second fixed frame. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0024] like Figure 1-4 As shown, a low-altitude economic cable 8 casing heat shrink device provided by one embodiment of the present invention includes a base 1 and further includes: A position control assembly 12 is mounted on the base 1 and has two sliding seats 4 mounted thereon. The position control assembly 12 is used to drive the two sliding seats 4 to move independently. The straightening assembly 9 and the positioning and clamping assembly 11 are respectively fixed on the two sliding seats 4. The positioning and clamping assembly 11 has the same structure as the straightening assembly 9. The positioning and clamping assembly 11 is used to position and clamp the cable 8, and the straightening assembly 9 is used to straighten the cable 8. A heat shrink assembly 10, which is provided between the positioning and clamping assembly 11 and the straightening assembly 9. The heat shrink assembly 10 is connected to the base 1 via a support assembly, which is used to provide fixed support or controllable rotation support for the heat shrink assembly 10; Among them, the heat shrink assembly 10 includes a heat shrink tube 13, and a plurality of heat protection tubes 21 are circumferentially distributed on the inner end of the heat shrink tube 13. A heating rod 19 is slidingly provided in the heat protection tube 21, and a linkage rod 20 is fixed on the end of the heating rod 19 away from the heat protection tube 21. The linkage rod 20 is slidably connected to the ring 18, and the ring 18 is also slidably connected to the heat shrink tube 13. A first telescopic cylinder 14 for driving the ring 18 to move is also fixed on the outer side of the heat shrink tube 13; a second telescopic cylinder 16 is also circumferentially distributed on the heat shrink tube 13 corresponding to the heat protection tube 21, and the telescopic core shaft of the second telescopic cylinder 16 is fixedly connected to the heat protection tube 21.

[0025] In the embodiment of the present invention, through the arrangement of the heat shrink assembly 10, the second telescopic cylinder 16 can drive the heat protection tube 21 to move radially, adjust the distance between the heating rod 19 and the cable 8, and adapt to different types of cables 8 for heat shrinkage operations. The first telescopic cylinder 14 can drive the collar 18 to move axially, thereby pulling the heating rod 19 relative to the heat protection tube 21 through the linkage rod 20, adjusting the length of the portion of the heating rod 19 extending out of the heat protection tube 21, and being able to adapt to the use of heat shrink tubes of different lengths to prevent the heating rod 19 from causing damage to the cable 8. Moreover, the linkage rod 20 can adapt to the radial movement of the heating rod 19, while satisfying the collar 18 to drive it to move, so that the heating rod 19 moves accordingly; the support assembly can provide fixed support or controllable rotation support for the heat shrink assembly 10, and different methods can be selected as needed. When the support assembly drives the heat shrink assembly 10 to rotate, the heating rod 19 can be moved along the surface of the cable 8, thereby improving the uniformity of heating of the heat shrink tube, thereby improving the overall quality of heat shrinkage.

[0026] In addition, the positioning and clamping component 11 can position and clamp the cable 8, that is, adjust the position of the cable 8 relative to the heat shrink component 10, so that the heating position of the heat shrink component 10 and the heat shrink tube correspond to the position where the cable 8 needs to be heat shrunk. Then, according to the length of the remaining cable 8, the cable 8 can be straightened through the straightening component 9, so that the cable 8, the heat shrink tube and the heat shrink tube 13 are coaxial, thereby improving the overall quality of heat shrinkage; as needed, the position control component 12 can be used to drive the two sliding seats 4 to move independently, thereby changing the position of the positioning and clamping component 11 and the straightening component 9 as needed to meet the adaptability requirements of processing.

[0027] In summary, the present invention has the advantages of reasonable structural design, strong adaptability, good heat shrinkage effect, and can effectively protect the cable 8 and improve the heat shrinkage quality.

[0028] like Figure 1-4 As shown in Figures 9-10, as a preferred embodiment of the present invention, the heat shrink tube 13 is a horizontally arranged cylindrical tube structure; the heat shrink tube 13 is provided with a position adjustment opening 17 corresponding to the linkage rod 20 and for the linkage rod 20 to pass through.

[0029] The first telescopic cylinders 14 are arranged in parallel with the heating rod 19 and are evenly distributed around the circumference. The cylinder body of the first telescopic cylinder 14 is fixedly connected to the outer wall of the heat shrink tube 13 through the cylinder body support 15, so that the ring 18 can be stably driven to move.

[0030] The inner side of the collar 18 is provided with a sliding groove that is slidably connected to the linkage rod 20 , thereby ensuring the stability of the collar 18 in transmitting the linkage rod 20 and the heating rod 19 .

[0031] The heating rods 19 can be arranged in an adaptive manner, and the heat protection tube 21 can insulate the heating rods 19 to prevent the redundant heating rods 19 from affecting the cable 8. In addition, the heating rods 19 can also adopt a segmented heating method to save energy and improve reliability.

[0032] In one embodiment, Figure 1 As shown, the support assembly includes a first fixing frame 5 , and the first fixing frames 5 are fixed on both sides of the heat shrink tube 13 . The lower end of the first fixing frame 5 is fixed on the base 1 , that is, the support assembly fixes and supports the heat shrink assembly 10 .

[0033] In another embodiment, Figure 9 and 10 As shown, the support assembly includes a second fixing ring 37, a passive gear 38, a carrying ring 39, a second motor 40, a motor support 41, a driving gear 42 and a second fixing frame 43. The outer side of the heat shrink tube 13 is fixed with a second fixing ring 37, and the second fixing ring 37 can be arranged corresponding to the cylinder support 15. At the same time, the second fixing ring 37 is adapted and fixed to the cylinder support 15. The second fixing ring 37 can also be arranged to avoid the cylinder support 15, without limitation; the outer side of the second fixing ring 37 is rotatably mounted with a carrying ring 39, and the lower two sides of the carrying ring 39 are fixed with second fixing frames 43, and the lower end of the second fixing frame 43 is fixed on the base 1, and the second fixing ring 37 is also fixed with a passive gear 38, which is meshed and connected with the driving gear 42 fixed at the output end of the second motor 40, and the second motor 40 is also connected and fixed to the carrying ring 39 or the second fixing frame 43 through the motor support 41. By starting the second motor 40, the second fixing ring 37 can be driven to rotate by the transmission of the driving gear 42 and the driven gear 38. Because the support ring 39 rotatably supports the second fixing ring 37, the heat shrink tube 13 can be driven to rotate stably. Preferably, the second motor 40 is used to drive the heat shrink tube 13 to rotate back and forth, thereby preventing the wiring of the various components of the heat shrink assembly 10 from twisting and improving reliability.

[0034] like Figure 1 and 5As shown, as a preferred embodiment of the present invention, the structure of the straightening component 9 is taken as an example for explanation, the straightening component 9 includes a first fixed ring 22 fixed to the upper end of the sliding seat 4, and a slewing ring 24 is rotatably installed on one side of the first fixed ring 22. A plurality of movable slots 25 are circumferentially distributed on the side wall of the slewing ring 24. A sliding sleeve 28 is rotatably supported in the movable slot 25 by a second support shaft (not shown). A clamping arm 27 is slidably provided on the inner side of the sliding sleeve 28. The outer end of the clamping arm 27 is rotatably connected to the first fixed ring 22 through a first support shaft 26. A wheel frame 29 is fixed to the inner end of the clamping arm 27, and a clamping wheel 30 is rotatably installed on the wheel frame 29; an arc-shaped telescopic cylinder 23 is also fixed on the first fixed ring 22, and the telescopic core shaft of the arc-shaped telescopic cylinder 23 is fixedly connected to the slewing ring 24.

[0035] By controlling the extension and retraction of the arc-shaped telescopic cylinder 23, the slewing ring 24 can be driven to rotate, thereby utilizing the first support shaft 26 to limit the clamping arm 27, and the second support shaft to support the sliding sleeve 28 for rotation. The clamping arm 27 is slidably connected to the sliding sleeve 28, which can drive the angle of the clamping arm 27 to change, and control multiple clamping wheels 30 to approach each other to clamp or release the cable 8 in a centered manner, with high reliability.

[0036] like Figure 1 、 5 -8, as a preferred embodiment of the present invention, the position control component 12 includes two end fixing seats 2 fixed on the base 1, and a screw rod 6 is rotatably installed between the two end fixing seats 2, and a first motor 7 connected to the screw rod 6 is also fixed on one of the end fixing seats 2, and guide rails 3 are provided on both sides of the screw rod 6, and the guide rails 3 are fixedly connected to the base 1 and the end fixing seats 2. A through hole for the screw rod 6 to slide through and a guide groove 36 for the guide rail 3 to slide through are provided on the sliding seat 4, and a transmission cavity 31 connected to the through hole is also provided on the inner side of the sliding seat 4, and a third telescopic cylinder 33 is fixed in the transmission cavity 31, and a transmission plate 32 that can be threadedly connected to the screw rod 6 is fixed on the end of the telescopic core shaft of the third telescopic cylinder 33. Specifically, the transmission plate 32 is arranged in an arc shape, and a thread matching the screw rod 6 is arranged on its upper side.

[0037] To ensure that the sliding seat 4 remains stable after stopping, L-shaped cavities 34 are defined on either side of the transmission cavity 31 within the sliding seat 4. The ends of the L-shaped cavities 34 communicate with the side surfaces of the transmission cavity 31 and the top of the guide slots 36, respectively. An L-shaped rod 35 is secured to each side of the transmission plate 32. The horizontal and vertical portions of the L-shaped rod 35 correspond to the L-shaped cavities 34, and the vertical portion of the L-shaped rod 35 is slidably connected to the vertical portion of the L-shaped cavity 34. When the transmission plate 32 is threadedly connected to the screw rod 6, the lower end of the vertical portion of the L-shaped rod 35 separates from the guide rail 3. When the transmission plate 32 is separated from the screw rod 6, the lower end of the vertical portion of the L-shaped rod 35 abuts and secures against the guide rail 3. This ingenious structural arrangement ensures that the sliding seat 4 remains stable even when it is not being driven.

[0038] The above embodiment of the present invention provides a low-altitude economic cable sheath heat shrink device, which drives the sliding seat 4 to move along the screw rod 6 and the guide rail 3 through the position control component 12, thereby adjusting the position of the positioning clamping component 11 and the straightening component 9 installed on the sliding seat 4 to adapt to the processing requirements of cables 8 of different lengths; the positioning clamping component 11 or the straightening component 9 drives the slewing ring 24 to rotate through the arc-shaped telescopic cylinder 23, and the linkage clamping arm 27 changes the angle, so that the clamping wheel 30 can achieve centering clamping or release of the cable 8; in the heat shrink component 10, the first telescopic cylinder 14 drives the collar 18 to move axially, and adjusts the heat through the linkage rod 20 The rod 19 extends out to the length of the heat protection tube 21, and the second telescopic cylinder 16 drives the heat protection tube 21 to move radially, thereby adjusting the distance between the heating rod 19 and the cable 8 to adapt to different types of cables 8 and heat shrink tubes; the support component can select fixed support (such as the first fixed frame 5) or rotating support (such as the second fixed ring 37, the passive gear 38, the load-bearing ring 39, the second motor 40, the driving gear 42, etc.) as needed. When rotating support is adopted, the second motor 40 is started, and the driving gear 42 is engaged with the passive gear 38 to drive the heat shrink tube 13 to rotate back and forth, so that the heating rod 19 evenly heats the surface of the cable 8.

[0039] The entire device realizes accurate positioning, automatic straightening, and flexible heat shrinkage adjustment of the cable 8, thereby preventing the heating rod 19 from causing damage to the cable 8 and significantly improving the heat shrinkage quality and applicability.

[0040] The control of each component can be carried out using a PLC controller disclosed in the prior art. The model and circuit connection of each component are not specifically limited and can be flexibly set in actual application.

[0041] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0042] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A low-altitude economic cable casing heat shrink device, comprising a base (1), characterized in that: Also includes: A position control component (12) is mounted on the base (1), two sliding seats (4) are mounted on the position control component (12), and the position control component (12) is used to drive the two sliding seats (4) to move positions independently; The straightening assembly (9) and the positioning clamping assembly (11) are respectively fixed on the two sliding seats (4). The straightening assembly (9) and the positioning clamping assembly (11) have the same structure. The positioning clamping assembly (11) is used to position and clamp the cable (8), and the straightening assembly (9) is used to straighten the cable (8). A heat shrink assembly (10) is provided between the positioning and clamping assembly (11) and the straightening assembly (9), and is connected to the base (1) via a support assembly, wherein the support assembly is used to provide fixed support or controllable rotation support for the heat shrink assembly (10); The heat shrink assembly (10) comprises a heat shrink tube (13), a plurality of heat protection tubes (21) are circumferentially distributed on one end of the inner side of the heat shrink tube (13), a heating rod (19) is slidably provided in the heat protection tube (21), a linkage rod (20) is fixed to one end of the heating rod (19) away from the heat protection tube (21), the linkage rod (20) is slidably connected to the collar (18), the collar (18) is also slidably connected to the heat shrink tube (13), and a first telescopic cylinder (14) for driving the collar (18) to move is also fixed to the outer side of the heat shrink tube (13); a second telescopic cylinder (16) is also circumferentially distributed on the heat shrink tube (13) and fixed corresponding to the heat protection tube (21), and the telescopic core shaft of the second telescopic cylinder (16) is fixedly connected to the heat protection tube (21).

2. The low-altitude economic cable casing heat shrink device according to claim 1 is characterized in that: The heat shrink tube (13) is a horizontally arranged cylindrical tube structure; The heat shrink tube (13) is provided with a position adjustment opening (17) corresponding to the linkage rod (20) and used for the linkage rod (20) to pass through.

3. The low-altitude economic cable casing heat shrink device according to claim 2, characterized in that: A plurality of the first telescopic cylinders (14) are evenly distributed circumferentially parallel to the heating rod (19), and the cylinder body of the first telescopic cylinder (14) is fixedly connected to the outer wall of the heat shrink tube (13) via a cylinder body support (15).

4. The low-altitude economic cable casing heat shrink device according to claim 3 is characterized in that: A sliding groove is provided on the inner side of the collar (18) and is slidably connected to the linkage rod (20).

5. The low-altitude economic cable casing heat shrink device according to any one of claims 1 to 4, characterized in that: The support assembly comprises a first fixing frame (5), the first fixing frames (5) are fixed on both sides of the heat shrink tube (13), and the lower end of the first fixing frame (5) is fixed on the base (1).

6. The low-altitude economic cable casing heat shrink device according to any one of claims 1 to 4, characterized in that: The support assembly comprises a second fixing ring (37), a driven gear (38), a carrying ring (39), a second motor (40), a motor support (41), a driving gear (42) and a second fixing frame (43); A second fixing ring (37) is fixed on the outside of the heat shrink tube (13), a carrying ring (39) is rotatably mounted on the outside of the second fixing ring (37), second fixing frames (43) are fixed on both sides of the lower part of the carrying ring (39), and the lower end of the second fixing frame (43) is fixed on the base (1); A passive gear (38) is also fixed on the second fixing ring (37), and the passive gear (38) is meshedly connected to a driving gear (42) fixed to the output end of the second motor (40). The second motor (40) is connected and fixed to the carrying ring (39) or the second fixing frame (43) through a motor support (41).

7. The low-altitude economic cable casing heat shrink device according to claim 6, characterized in that: The second motor (40) is used to drive the heat shrink tube (13) to rotate back and forth.

8. The low-altitude economic cable casing heat shrink device according to any one of claims 1 to 4, characterized in that: The straightening assembly (9) includes a first fixed ring (22) fixed to the upper end of the sliding seat (4), a slewing ring (24) is rotatably mounted on one side of the first fixed ring (22), a plurality of movable notches (25) are circumferentially distributed on the side wall of the slewing ring (24), and a sliding sleeve (28) is rotatably supported in the movable notch (25) via a second support shaft; A clamping arm (27) is slidably provided on the inner side of the sliding sleeve (28), the outer end of the clamping arm (27) is rotatably connected to the first fixing ring (22) via a first support shaft (26), a wheel frame (29) is fixed to the inner end of the clamping arm (27), and a clamping wheel (30) is rotatably mounted on the wheel frame (29); An arc-shaped telescopic cylinder (23) is also fixed on the first fixed ring (22), and the telescopic core shaft of the arc-shaped telescopic cylinder (23) is fixedly connected to the slewing ring (24).

9. The low-altitude economic cable casing heat shrink device according to any one of claims 1 to 4, characterized in that: The position control assembly (12) comprises two end fixing seats (2) fixed on the base (1), a screw rod (6) being rotatably mounted between the two end fixing seats (2), and a first motor (7) in transmission connection with the screw rod (6) being fixed on one of the end fixing seats (2); Guide rails (3) are provided on both sides of the screw rod (6), and the guide rails (3) are fixedly connected to the base (1) and the end fixing seat (2); The sliding seat (4) is provided with a through hole for the screw rod (6) to slide through and a guide slot (36) for the guide rail (3) to slide through; A transmission chamber (31) communicating with the through hole is provided on the inner side of the sliding seat (4), a third telescopic cylinder (33) is fixed in the transmission chamber (31), and a transmission plate (32) capable of being threadedly connected to the screw rod (6) is fixed at the end of the telescopic core shaft of the third telescopic cylinder (33).

10. The low-altitude economic cable casing heat shrink device according to claim 9, characterized in that: L-shaped cavities (34) are provided on both sides of the transmission cavity (31) in the sliding seat (4), and the two ends of the L-shaped cavity (34) are respectively connected to the side of the transmission cavity (31) and the top of the guide slot (36); An L-shaped rod (35) is fixed to each side of the transmission plate (32), the horizontal portion and the vertical portion of the L-shaped rod (35) are arranged corresponding to the L-shaped cavity (34), and the vertical portion of the L-shaped rod (35) is slidably connected to the vertical portion of the L-shaped cavity (34); When the transmission plate (32) is threadedly connected to the screw rod (6), the lower end of the vertical portion of the L-shaped rod (35) is separated from the guide rail (3); When the transmission plate (32) is separated from the screw rod (6), the lower end of the vertical portion of the L-shaped rod (35) is abutted and fixed against the guide rail (3).

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