An overhead line insulation sheath installation device with a hanging wheel locking function

Abstract

The present invention relates to the technical field of overhead lines, and more specifically, to an overhead line insulating sheath installation device with a hanging wheel locking function. It includes a sheath body that is easy to deform and does not have the ability to automatically recover after deformation, and the sheath body is sleeved outside the line; it also includes a pressing assembly that can be opened and closed, and the pressing assembly is sleeved outside the sheath body, wherein: the pressing assembly is used to squeeze the sheath body corresponding to the concave part of the outer periphery of the line, and the pressing assembly moves along the line direction, so that the sheath body is linearly deformed toward the inner side of the concave part. In the present invention, the sheath body is arranged outside the multi-strand cable, and then the sheath body section is adapted to the overall section of the multi-strand cable in appearance by cooperating with the pressing of the hanging wheel of the pressing assembly, so as to limit the cable and achieve the purpose of locking the cable, thereby solving the problem of continuous displacement and friction between the cables.

Description

Technical Field

[0001] The invention relates to the technical field of overhead lines, in particular to an overhead line insulating sheath installation device with a hanging wheel locking function. Background Art

[0002] Overhead lines refer to a high-altitude power transmission line formed by hanging power cables on brackets or poles. The main functions of overhead lines are to transmit power, provide communications and organize cables. Here we need to explain the organization of cables, which means: at intersections and transportation hubs in cities (or other places where cables are used more intensively), there are often a large number of power cables, communication cables and other lines that need to be transmitted. In order to facilitate management and maintenance, it is a common practice to bundle and hang these cables on overhead lines.

[0003] In consideration of safety, insulating sheaths are installed on cables above roads where pedestrians or vehicles pass, and insulating sheaths are also installed on cables above some dangerous areas, such as rivers and ponds.

[0004] Generally, insulating sheaths adopt a circular structure. However, compared with a single cable, after multiple cables are bundled, their shape is no longer a regular circle. At this time, the fit between the circular insulating sheath and the cable will be reduced, and the coating strength of the cable will also be reduced.

[0005] In view of this, the present invention proposes an installation device capable of extruding a sheath. Summary of the invention

[0006] The purpose of the present invention is to provide an overhead line insulating sheath installation device with a hanging wheel locking function, which is achieved by arranging a sheath body that is easy to deform and does not have the ability to automatically recover after deformation outside a multi-strand cable, and then cooperating with the extrusion of a pressing component to make the cross-section of the sheath body and the overall cross-section of the multi-strand cable adapt in appearance, so as to limit the cables, thereby solving the problem of continuous displacement and friction between the cables.

[0007] To achieve the above object, an overhead line insulation sheath installation device with a pulley locking function is provided, which includes a sheath body that is easy to deform and has no automatic recovery ability after deformation, and the sheath body is sleeved outside the line;

[0008] It also includes a pressing assembly that can be opened and closed, and the pressing assembly is sleeved outside the sheath body;

[0009] Wherein, the line is formed by bundling a plurality of cables, and a plurality of depressions are provided on the periphery of the line;

[0010] The pressing assembly is used to squeeze the sheath body corresponding to the concave part of the circuit periphery, and the pressing assembly moves along the circuit direction, so that the sheath body is linearly deformed toward the inner side of the concave part to limit the cable.

[0011] As a further improvement of the technical solution, the sheath body is formed by bending a plate-like structure to obtain a tubular structure with an elliptical cross section;

[0012] Wherein, an opening through which a line can pass is formed between the two ends of the plate-like structure.

[0013] As a further improvement of the technical solution, the sheath body comprises an insulating sleeve and a deformation plate, wherein:

[0014] The deformation plate is a metal plate with an elliptical cross section that can undergo plastic deformation;

[0015] An opening is formed between the two ends of the deformable plate so that the circuit can pass through;

[0016] The insulating sleeve is coated on the outside of the deformation plate.

[0017] As a further improvement of the technical solution, the two ends of the deformation plate are respectively provided with a first docking portion and a second docking portion, a first docking interface and a second docking interface are provided on one side of the deformation plate outside the first docking portion facing the second docking portion, the first docking interface is above the second docking interface, and the first docking portion is provided with a first bayonet and a second bayonet corresponding to the first docking interface and the second docking interface respectively;

[0018] A first notch and a second notch are provided on a side of the deformation plate outside the second docking portion facing the first docking portion, the first notch is above the second notch, and a first pair of joints and a second pair of joints are provided on the second docking portion corresponding to the first notch and the second notch, wherein:

[0019] The first pair of connectors and the second pair of connectors are both composed of a body and a flexible triangular head. The body of the second pair of connectors is longer than that of the first pair of connectors. The bodies of the first pair of connectors and the second pair of connectors pass through the first slot and the second slot respectively, so that their respective triangular heads are exposed.

[0020] As a further improvement of the technical solution, the press-fit assembly includes a first half ring body and a second half ring body, and one end of the first half ring body and the second half ring body are rotatably connected with an axis parallel to the central axis of the two as an axis;

[0021] The first half ring and the second half ring include two states:

[0022] One state is an open state, in which the first half ring body and the second half ring body are sleeved outside the sheath body;

[0023] The other state is a closed state, the first half ring body and the second half ring body are fixedly connected, and the first half ring body and the second half ring body form an annular structure on the periphery of the sheath body;

[0024] It also includes a hanging wheel that can be extended and retracted at the center of the circle inside the annular structure. The hanging wheel is arranged corresponding to the recessed position and is used to squeeze the sheath body.

[0025] As a further improvement of the technical solution, a first connecting portion is provided at the end of the first semi-ring body, and a second connecting portion is provided at the end of the second semi-ring body, and the first connecting portion and the second connecting portion can be fixedly connected by bolts.

[0026] As a further improvement of the technical solution, the first half ring body and the second half ring body are provided with fractures of the same number as the recessed parts at equal intervals, and a "U"-shaped frame is provided on the outside of each fracture, and an adapter frame is provided inside the "U"-shaped frame, and a hydraulic rod is provided between the adapter frame and the "U"-shaped frame, and the extension and retraction of the hydraulic rod enables the adapter frame to move directly toward the center of the annular structure to obtain a directly aligned line;

[0027] The hanging wheel is rotatably connected to the adapter frame, and the rotation axis of the hanging wheel is parallel to the tangent line of the intersection point of the facing line and the annular structure.

[0028] As a further improvement of the technical solution, the adapter frame is provided with reinforcement rods on both sides of the inner wall of the "U"-shaped frame, and a slide groove matching the cross-sectional contour of the reinforcement rod is opened on the inner wall of the "U"-shaped frame, and the reinforcement rod is slidably connected in the slide groove.

[0029] As a further improvement of the technical solution, the second bayonet includes two limiting cavities, the triangular head of the second pair of joints can move in the outer limiting cavity, and the inner limiting cavity is stably connected to the triangular head of the second pair of joints.

[0030] As a further improvement of the technical solution, a driving motor is arranged on the axial direction of the hanging wheel to drive the hanging wheel to rotate, and drive the entire pressing assembly to move along the line direction by the action of friction.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. In the overhead line insulating sheath installation equipment with a hanging wheel locking function, the hanging wheel of the pressing assembly can squeeze the sheath body corresponding to the recessed part of the line periphery. At this time, the deformation of the sheath body is equivalent to a point. Then the pressing assembly moves along the line direction, so that the sheath body is linearly deformed toward the inside of the recessed part, so as to achieve the purpose of locking the cable. Therefore, using the pressing assembly to install the sheath body makes it more efficient.

[0033] 2. In the overhead line insulating sheath installation equipment with a hanging wheel locking function, the triangular head of the second pair of joints can move in the first limiting cavity, but cannot be separated from the first limiting cavity, so that there is a certain movable gap between the first docking part and the second docking part, thereby ensuring that the sheath body has sufficient deformation and that the deformed part can fully engage with the recess to position the annular structure and the sheath body.

[0034] 3. In the overhead line insulation sheath installation device with the hanging wheel locking function, a driving motor is arranged on the axial direction of the hanging wheel to drive the hanging wheel to rotate, and the entire pressing assembly is driven to move along the line direction by the action of friction;

[0035] On this basis, a plurality of pressing components are disposed outside a sheath body, so that the sheath body is operated in sections by using the separately arranged pressing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the circuit and pressing assembly structure of the sheath body of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of the sheath body of the present invention;

[0038] Figure 3 For the present invention Figure 2 A magnified view of the structure at A;

[0039] Figure 4 For the present invention Figure 2 A magnified view of the structure at B;

[0040] Figure 5 For the present invention Figure 2 A magnified view of the structure at C;

[0041] Figure 6 It is a schematic diagram of the structure of the pressing assembly of the present invention;

[0042] Figure 7 For the present invention Figure 6 A magnified view of the structure at D;

[0043] Figure 8 It is a schematic diagram of the state change structure of the sheath body of the present invention;

[0044] Fig. 9 For the present invention Figure 8 A magnified view of the structure at E;

[0045] Fig.10 For the present invention Figure 8 A magnified view of the structure at F;

[0046] Fig.11It is a front view of the overall structure of the present invention;

[0047] Fig.12 A side view of the overall structure of the present invention.

[0048] Fig.13 It is a schematic structural diagram of the sheath installation mechanism and the pressing assembly of the present invention.

[0049] The meaning of each number in the figure is:

[0050] 100, cable; 200, sheath body; 300, pressing assembly;

[0051] 210, insulating sleeve; 211, first interface; 212, second interface; 213, first notch; 214, second notch; 220, deformation plate; 221, first docking part; 222, second docking part; 223, first joint; 224, second joint; 225, first bayonet; 226, second bayonet;

[0052] 310, first half ring body; 311, first connecting part; 320, second half ring body; 321, second connecting part; 330, "U"-shaped frame; 331, fracture; 332, hanging wheel; 333, adapter frame; 3331, reinforcement rod; 334, hydraulic rod; 335, slide groove. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] At present, the insulating sheath usually adopts an elastic tube body with an opening and closing seam on the tube body. Then the opening and closing seam is stretched open so that the tube body can be placed outside the line. The elastic tube body itself has a tendency to recover automatically, so once the force that stretches the opening and closing seam stops, the opening and closing seam will automatically close, for example:

[0055] Chinese patent announcement number: CN104852329B discloses a high-voltage overhead line protective casing construction tool, a V-shaped bracket, the lower end of the V-shaped bracket is threadedly connected to the insulating rod through a sleeve, and the two top ends of the V-shaped bracket are respectively fixedly connected to a clamping mechanism that can clamp the PVC pipe. Through this mechanism, the PVC pipe can have two states: in the open state, the PVC pipe is opened and lifted and limited by the support plate on the lower side; after the support plate is withdrawn downward, the PVC pipe is separated from the slot and automatically returns to a round shape.

[0056] But in actual use, I found: Figure 1 As shown, after multiple cables 100 are bundled together, the overall cross-sectional shape of the line is already an irregular "petal" shape. In this way, after the PVC tube is installed on the outside of the line, the covering strength of the cables 100 is insufficient, resulting in continuous displacement and friction between the cables 100. The current solution is to add straps to bundle the cables 100 (but due to the defects of the straps themselves, the effect is not very ideal).

[0057] In addition, the overall radius is also increased, so the PVC tube needs to be stretched large enough to be able to fit outside the cable 100. This results in that when the PVC tube is subjected to excessive force or is stretched for too long, the molecular structure will undergo plastic deformation, causing the shape of the PVC tube to be unable to recover (or unable to recover to its original shape), thereby affecting the insulation protection effect.

[0058] To this end, the applicant provides an overhead line insulating sheath installation device with a hanging wheel locking function, which is configured by setting a sheath body 200 to be sleeved on the outside of a multi-strand cable 100, and then cooperating with the extrusion of a pressing assembly 300 to make the cross-section of the sheath body 200 adapt to the overall cross-section of the multi-strand cable 100 in appearance, so as to limit the cable 100.

[0059] The specific implementation is as follows:

[0060] In one embodiment, see Figure 1 and Figure 2 As shown, first, the sheath body 200 is made of a material that is easy to deform and has no automatic recovery ability after deformation, such as polyethylene, polypropylene, epoxy resin or rubber. Before installation, the above materials are used to make a plate structure, and the plate structure is bent so that its cross section presents an elliptical shape, and finally a tubular structure with an elliptical cross section is obtained, as shown in FIG. Figure 8 b part in the figure, and an opening is formed between the two ends of the plate-like structure so that the line can pass through (the line here is formed by bundling 7 cables 100, specifically 6 cables are wrapped around 1 cable, and the radius of the line after bundling is 3r, where r is the radius of the cable 100, which is usually 2.5mm-30mm, but depends on the actual situation of the line, so it is not used as a limitation on the protection range here), then the minimum spacing between the two ends of the plate-like structure must be greater than 3r; secondly, after the sheath body 200 is sleeved outside the line, the sheath body 200 is manually squeezed to close its two ends, and then squeezed again to deform the sheath body 200 at the concave part outside the line, and the deformed part supports the peripheral cables 100, so as to achieve the purpose of limiting the peripheral cables 100 and prevent them from shifting.

[0061] However, the efficiency of manual squeezing is still too low, so a mounting device used in conjunction with the above-mentioned sheath body 200 is proposed. Figure 1 As shown, the installation device includes a pressing component 300, which can be opened and closed and is sleeved on the outside of the sheath body 200. Then the pressing component 300 can squeeze the sheath body 200 corresponding to the recessed part of the circuit periphery (at this time, the deformation part of the sheath body 200 is equivalent to a point), and the pressing component 300 moves along the circuit direction, so that the sheath body 200 is linearly deformed toward the inside of the recessed part. Therefore, using the pressing component 300 to install the sheath body 200 makes it more efficient.

[0062] Specifically, referring to FIG6 , the opening and closing of the press-fit assembly 300 is achieved by providing a first semi-ring body 310 and a second semi-ring body 320. One end of the first semi-ring body 310 and the second semi-ring body 320 are rotatably connected with an axis a parallel to the central axis of the two circles as an axis. A first connecting portion 311 is provided at the other end of the first semi-ring body 310, and a second connecting portion 321 is provided at the other end of the second semi-ring body 320. The first semi-ring body 310 and the second semi-ring body 320 have two states:

[0063] One state is an open state, in which the first half ring body 310 and the second half ring body 320 are sleeved outside the sheath body 200;

[0064] The other state is a closed state, in which the first connection portion 311 and the second connection portion 321 fit together and are fixed by bolts. Fig.11 As shown, the first half ring body 310 and the second half ring body 320 form an annular structure on the periphery of the sheath body 200. In addition, the first half ring body 310 and the second half ring body 320 are provided with a number of fractures 331 at equal intervals and the same number as the recessed parts. A "U"-shaped frame 330 is provided on the outside of each fracture 331, and an adapter frame 333 is provided inside the "U"-shaped frame 330. A hydraulic rod 334 is provided between the adapter frame 333 and the "U"-shaped frame 330. Figure 7 and Fig.11 As shown, the extension and retraction of the hydraulic rod 334 enables the adapter frame 333 to move toward the center of the annular structure, thereby obtaining a facing line g, and the adapter frame 333 is rotatably connected to a hanging wheel 332, and the rotation axis e of the hanging wheel 332 is parallel to the tangent f of the intersection of the facing line g and the annular structure.

[0065] See also Figure 1 , Figure 6 , Figure 7 , Figure 8 and Fig.11 As shown, when operating, Figure 8As shown, assuming that the length of the line passing through the intersection is 6m, the sheath body 200 can be set longer, and can be set to 6-8m. Specifically, it can be spliced ​​by 12-16 sections of 0.5m long sheath bodies 200, which will be more convenient for installation. Assuming that the line is composed of six strands of cables 100 tied around one strand of cable 100, only the cable 100 is temporarily tied with a cable tie at the two ends of the sheath body 200 (because the cable 100 is still constrained by the sheath body 200 in the later stage). At this time, the 7 strands of cables 100 form a whole (the periphery of this whole has 6 depressions, which are Fig.11 1-6), see Figure 8 As shown in part b of the figure, the multiple sections of the sheath body 200 are sequentially sheathed outside the line, and the sheath body 200 is squeezed during the sheathing process to make the two ends close to each other, as shown in FIG. Figure 8 The c part in the figure ensures that the cross section of the sheath body 200 is approximately circular. At this time, the sheath body 200 is placed outside the line and will not fall off. Figure 6 As shown, the first half ring body 310 and the second half ring body 320 in the open state are sleeved outside the sheath body 200, and then the first half ring body 310 and the second half ring body 320 are closed to form an annular structure. At this time, the annular structure is adjusted so that the directional hanging wheels 332 are directly opposite to the recessed part, and then the hydraulic rod 334 is operated to drive the adapter frame 333 to drive the hanging wheels 332 to move inside the recessed part, and squeeze the sheath body 200 to deform it inside the recessed part. However, at this time, the deformed part is equivalent to forming a point, so it is necessary to push the entire annular structure to move along the line direction, so that the sheath body 200 is linearly deformed toward the inside of the recessed part, and the deformed part restricts the 6 cables 100 on the periphery.

[0066] Preferably, Figure 7 As shown, in order to improve the stability of the movement of the adapter frame 333, reinforcement rods 3331 are provided on both sides thereof facing the inner wall of the "U"-shaped frame 330, and a slide groove 335 that matches the cross-sectional contour of the reinforcement rod 3331 is opened on the inner wall of the "U"-shaped frame 330, and the reinforcement rod 3331 is slidably connected in the slide groove 335.

[0067] In another embodiment, see Figure 2 As shown, the sheath body 200 includes a deformation plate 220, which is a metal plate with an elliptical cross section that can undergo plastic deformation, such as an iron plate and an aluminum plate. Figure 8 b in the deformation plate 220, and an opening is formed between the two ends of the deformation plate 220 so that the line can pass through, and then the deformation plate 220 is returned to the deformation plate 220. Figure 2 As shown, the deformation plate 220 is covered with an insulating sleeve 210, wherein:

[0068] The two ends of the deformation plate 220 are respectively provided with a first docking portion 221 and a second docking portion 222;

[0069] The deformable plate 220 outside the first docking portion 221 is provided with a first docking port 211 and a second docking port 212 on one side facing the second docking portion 222. The first docking port 211 is above the second docking port 212. Figure 4 As shown, the first docking portion 221 is provided with a first bayonet 225 and a second bayonet 226 corresponding to the first docking port 211 and the second docking port 212 respectively;

[0070] The deformation plate 220 outside the second docking portion 222 is provided with a first notch 213 and a second notch 214 on one side facing the first docking portion 221. The first notch 213 is above the second notch 214. Figure 3 As shown, the first pair of joints 223 and the second pair of joints 224 are provided on the second docking portion 222 corresponding to the first slot 213 and the second slot 214. The first pair of joints 223 and the second pair of joints 224 are both composed of a body and a flexible triangular head, except that the body of the second pair of joints 224 is longer than that of the first pair of joints 223. The bodies of the first pair of joints 223 and the second pair of joints 224 pass through the first slot 213 and the second slot 214 respectively, so that their respective triangular heads are exposed.

[0071] Among them, see Figure 5 , Figure 8 Part c and Fig. 9 As shown, in this embodiment, the insulating sleeve 210 and the deformation plate 220 are first extruded as a whole, so that the first docking portion 221 and the second docking portion 222 at both ends are close to each other, until the triangular head of the second docking joint 224 is inserted into the first limiting cavity of the second bayonet 226 through the second docking port 212, and the triangular head of the first docking joint 223 also enters the first bayonet 225 through the first docking port 211. At this time, the triangular head of the second docking joint 224 can still move in the first limiting cavity, but cannot leave the first limiting cavity. The purpose of this design is to ensure that there is a certain movable gap between the first docking portion 221 and the second docking portion 222.

[0072] For specific use, see Figure 8 As shown, firstly, the insulating sleeve 210 and the deformable plate 220 are squeezed as a whole, so that the first butt joint 221 and the second butt joint 222 at both ends are connected to the first limiting cavity through the triangular head of the second butt joint 224, as shown in FIG. Figure 8 The c part in the figure ensures that the cross section of the sheath body 200 is approximately circular. At this time, the insulating sleeve 210 and the deformable plate 220 are basically in contact with the circuit. Figure 6 and Fig.11 As shown, the first half ring body 310 and the second half ring body 320 are then sleeved outside the sheath body 200, and the first half ring body 310 and the second half ring body 320 are closed to form an annular structure;

[0073] Secondly, if Fig.11 As shown, the center position of the annular structure is adjusted by using the extended length of the four hanging wheels 332 at the bottom and the top, and the ultimate goal is to make the center of the circle coaxial with the center of the line. Then, the two hanging wheels 332 on both sides squeeze the sheath body 200 respectively, so that the sheath body 200 is deformed into the recess 1 and the recess 2 respectively. At this time, due to the squeezing force, the shape of the insulation sleeve 210 and the deformation plate 220 as a whole will change slightly (the reserved activity gap between the first docking part 221 and the second docking part 222 provides a basis for this), ensuring that the sheath body 200 has enough deformation, ensuring that the deformed part can fully engage with the recess 1 and the recess 2, so as to position the annular structure and the sheath body 200;

[0074] Then, the first docking portion 221 and the second docking portion 222 are closed. Figure 8 For details, see Part d of Fig.10 As shown, extrusion brings the first docking portion 221 and the second docking portion 222 closer to each other until the triangular head of the first docking joint 223 is inserted into the limiting cavity of the first bayonet 225, and the triangular head of the second docking joint 224 is inserted into the second limiting cavity of the second bayonet 226 (the second limiting cavity is stably connected to the triangular head of the second docking joint 224). In this way, the two connections can improve the stability of the connection between the first docking portion 221 and the second docking portion 222.

[0075] For further information, see Fig.11 As shown, the four hanging wheels 332 at the top and bottom adjust the telescopic length according to the actual situation of the sheath body 200. Because the maximum deformation of the sheath body 200 corresponding to each recess may be different, the hanging wheels 332 corresponding to recesses 3, 4, 5 and 6 are extended to a suitable distance (not exceeding the maximum deformation of the sheath body 200). Finally, the pressing assembly 300 is pushed as a whole, so that the sheath body 200 is linearly deformed toward the inside of the recess according to the extrusion of the hanging wheels 332, thereby achieving the goal of not damaging the sheath body 200, but also increasing the fitting area between the sheath body 200 and the line, as well as the covering ability.

[0076] In another embodiment, a driving motor (not shown in the figure) can be arranged in the axial direction of the hanging wheel 332 to drive the hanging wheel 332 to rotate, and drive the entire pressing assembly 300 to move along the line direction by means of friction. Fig.12 As shown, a plurality of pressing assemblies 300 may be disposed outside a sheath body 200, so that the sheath body 200 is operated in sections by using the separately disposed pressing assemblies 300. The specific operation methods have been described in the above embodiments, so they will not be repeated here.

[0077] In some embodiments, the press-fit assembly 300 is used in conjunction with an existing sheath installation mechanism, see Fig.13 As shown, the existing sheath installation mechanism is first used to wrap the easily deformable sheath body 200 around the circuit formed by the multi-strand cable 100 (the sheath installation mechanism is disclosed in the prior art and will not be described in detail here), and the pressing component 300 is fixedly installed on the sheath installation mechanism to cause the circuit to shift relative to the pressing component 300, thereby achieving the same effect as the above-mentioned embodiment, that is, the cross-section of the sheath body 200 is squeezed by the pressing component 300 to adapt the shape of the overall cross-section of the multi-strand cable 100, so as to limit the cable 100.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An overhead line insulation sheath installation device with a hanging wheel locking function, characterized in that: It comprises a sheath body (200) which is easy to deform and has no automatic recovery capability after deformation, and the sheath body (200) is sleeved outside the circuit; It also includes a pressing assembly (300) that can be opened and closed, wherein the pressing assembly (300) is sleeved outside the sheath body (200); The circuit is formed by bundling a plurality of cables (100), and a plurality of recesses are provided on the periphery of the circuit; The pressing assembly (300) is used to press the sheath body (200) corresponding to the concave portion of the circuit periphery, and the pressing assembly (300) moves along the circuit direction, so that the sheath body (200) is deformed linearly toward the inside of the concave portion, so as to limit the position of the cable (100); The cross section of the sheath body (200) that has not been squeezed by the pressing assembly (300) is approximately circular; The press-fit assembly (300) comprises a first semi-ring body (310) and a second semi-ring body (320), wherein one end of the first semi-ring body (310) and the second semi-ring body (320) are rotatably connected with an axis parallel to the central axes of the two circles as an axis; The first half ring body (310) and the second half ring body (320) include two states: One state is an open state, which is used for the first half ring body (310) and the second half ring body (320) to be sleeved outside the sheath body (200); The other state is a closed state, wherein the first half ring body (310) and the second half ring body (320) are fixedly connected, and the first half ring body (310) and the second half ring body (320) form an annular structure on the periphery of the sheath body (200); It also includes a hanging wheel (332) capable of extending and retracting the center of the circle of the annular structure at the inner side thereof; the hanging wheel (332) is arranged corresponding to the recessed position and is used for squeezing the sheath body (200).

2. The overhead line insulation sheath installation device with a pulley locking function according to claim 1 is characterized in that: The sheath body (200) is formed by bending a plate-like structure; Wherein, an opening through which a line can pass is formed between the two ends of the plate-like structure.

3. The overhead line insulation sheath installation device with a pulley locking function according to claim 1 is characterized in that: The sheath body (200) comprises an insulating sheath (210) and a deformation plate (220), wherein: The deformation plate (220) is a metal plate that can undergo plastic deformation; An opening is formed between the two ends of the deformable plate (220) through which a line can pass; The insulating sleeve (210) is coated on the outside of the deformation plate (220).

4. The overhead line insulation sheath installation device with a pulley locking function according to claim 3 is characterized in that: The two ends of the deformation plate (220) are respectively provided with a first docking portion (221) and a second docking portion (222); a first docking interface (211) and a second docking interface (212) are provided on one side of the deformation plate (220) outside the first docking portion (221) and facing the second docking portion (222); the first docking interface (211) is above the second docking interface (212); and a first bayonet (225) and a second bayonet (226) are respectively provided on the first docking portion (221) corresponding to the first docking interface (211) and the second docking interface (212); A first notch (213) and a second notch (214) are provided on the deformable plate (220) outside the second docking portion (222) on one side facing the first docking portion (221); the first notch (213) is above the second notch (214); and a first pair of joints (223) and a second pair of joints (224) are provided on the second docking portion (222) corresponding to the first notch (213) and the second notch (214), wherein: The first pair of joints (223) and the second pair of joints (224) are both composed of a body and a flexible triangular head. The body of the second pair of joints (224) is longer than the body of the first pair of joints (223). The bodies of the first pair of joints (223) and the second pair of joints (224) pass through the first slot (213) and the second slot (214) respectively, so that their respective triangular heads are exposed.

5. The overhead line insulation sheath installation device with a pulley locking function according to claim 1, characterized in that: A first connecting portion (311) is provided at the end of the first semi-ring body (310), and a second connecting portion (321) is provided at the end of the second semi-ring body (320). The first connecting portion (311) and the second connecting portion (321) can be fixedly connected by bolts.

6. The overhead line insulation sheath installation device with a pulley locking function according to claim 1, characterized in that: The first half ring body (310) and the second half ring body (320) are provided with fractures (331) at equal intervals and in the same number as the recessed parts, a "U"-shaped frame (330) is provided on the outside of each fracture (331), an adapter frame (333) is provided inside the "U"-shaped frame (330), a hydraulic rod (334) is provided between the adapter frame (333) and the "U"-shaped frame (330), and the extension and retraction of the hydraulic rod (334) enables the adapter frame (333) to move directly in line with the center of the annular structure, thereby obtaining a directly aligned line; The hanging wheel (332) is rotatably connected to the adapter frame (333), and the rotation axis of the hanging wheel (332) is parallel to the tangent of the intersection point of the facing line and the annular structure.

7. The overhead line insulation sheath installation device with a pulley locking function according to claim 6, characterized in that: Reinforcement rods (3331) are provided on both sides of the adapter frame (333) facing the inner wall of the "U"-shaped frame (330), and a slide groove (335) matching the cross-sectional profile of the reinforcement rod (3331) is opened on the inner wall of the "U"-shaped frame (330), and the reinforcement rod (3331) is slidably connected in the slide groove (335).

8. The overhead line insulation sheath installation device with a pulley locking function according to claim 4, characterized in that: The second bayonet (226) comprises two limiting cavities, the triangular head of the second pair of joints (224) is able to move in the outer limiting cavity, and the inner limiting cavity is stably connected to the triangular head of the second pair of joints (224).

9. The overhead line insulation sheath installation device with a pulley locking function according to claim 1, characterized in that: A driving motor is arranged on the axial direction of the hanging wheel (332) to drive the hanging wheel (332) to rotate, thereby driving the entire pressing assembly (300) to move along the line direction by means of friction.

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