A prefabricated insulating sheath for power grid and a processing method thereof

Abstract

The present invention provides a prefabricated insulating sheath for power grid and a processing method thereof, which relates to the technical field of insulating materials, and comprises an insulating sleeve, wherein the cross section of the insulating sleeve is an unclosed circular ring structure, and the surface of the insulating sleeve is provided with a connecting device, wherein the connecting device comprises a first fixing member, a second fixing member, a positioning member with a positioning structure and a positioning hole, and a clamping strip with an arrow-shaped structure, wherein the first fixing member and the second fixing member are respectively fixedly connected to the two sides of the insulating sleeve, the clamping strip with the arrow-shaped structure is fixedly connected to the side wall of the second fixing member, and a plurality of the positioning members are evenly fixedly connected to the side wall of the clamping strip with the arrow-shaped structure, and a plurality of the positioning holes are opened on the inner wall of the first fixing member, and the size of the positioning hole is adapted to the size of the positioning member, and the positioning hole is inserted for the positioning member. The present invention solves the problem that the electric wires on the power grid are easily caused to have long cracks due to the external force.

Description

Technical Field

[0001] The invention relates to the technical field of insulating materials, and in particular to a prefabricated insulating sheath for a power grid and a processing method thereof. Background Art

[0002] Insulating material refers to the material that isolates the current passing through the circuit. The insulating sheath is the protective sheath on the surface of the wires in the power grid that is used to insulate the wires. It is also called an insulating sheath. It is usually made of polyethylene material and has a good insulating effect.

[0003] The existing application number is (CN1678449A) and is a sheath that provides thermal insulation for an elongated substrate. According to the ultrasonic welding of the present invention, the non-woven thermal insulation sheath provides an economical and effective method for thermally insulating and protecting an elongated substrate under wide use conditions, avoiding the high cost, low yield, weak tear strength and incomplete thermal protection defects of previous thermal insulation sheaths. The present invention still has the following problems during use. The current wires are usually arranged so that the side walls can be wrapped with insulating sheaths through arrow-shaped structures and notch clamping methods to wrap the exposed wires on the power grid. When the wires on the power grid are cracked by external forces, the cracking of the insulating sheath at a single position is the fuse for the cracking of the insulating sheath as a whole. When the insulating sheath is subjected to a slight external force, the insulating sheath will continue to crack along the insulating sheath at the opening position, which can easily cause the insulating sheath to fall off the power grid wires, increasing the safety hazard during use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming that the electric wires on the power grid are easily caused to have long cracks due to the external force, and to propose a prefabricated insulating sheath for the power grid and a processing method thereof.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a prefabricated insulating sheath for power grid and a processing method thereof, comprising an insulating sheath, the cross-section of the insulating sheath being an unclosed circular ring structure, a connecting device being provided on the surface of the insulating sheath, the connecting device comprising a first fixing member, a second fixing member, a positioning member and a positioning hole having a positioning structure, and a clamping strip having an arrow-shaped structure.

[0006] The effect achieved by the above-mentioned components is: by setting a connecting device, the two sides of the insulating sleeve are connected in a disconnecting manner, thereby reducing the situation in which when the wires on the power grid are cracked by external force during the use of the insulating sleeve, the cracking of the insulating sleeve at a single position is reduced, which is the fuse for the overall cracking of the insulating sleeve. When the insulating sleeve is subjected to a slight external force, the insulating sleeve will continue to crack along the insulating sleeve at the opening position, thereby reducing the safety hazards in the use of the insulating sleeve to a certain extent.

[0007] Preferably, the first fixing member and the second fixing member are respectively fixedly connected to the two sides of the insulating sleeve, the clip of the arrow-shaped structure is fixedly connected to the side wall of the second fixing member, a plurality of the positioning members are evenly fixedly connected to the side wall of the clip of the arrow-shaped structure, a plurality of the positioning holes are opened on the inner wall of the first fixing member, the size of the positioning hole is adapted to the size of the positioning member, and the positioning hole is for the positioning member to be inserted.

[0008] The effect achieved by the above-mentioned components is: after the insulating sleeve is put on the surface of the exposed wire, the first fixing member and the second fixing member are pressed toward the side close to each other, and the arrow-shaped clamping strip on the second fixing member will be stuck in the inner wall of the first fixing member. When the positioning member on the clamping strip penetrates into the inner side of the first fixing member, the squeezed first fixing member and the second fixing member can be released. At this time, the positioning member will be inserted into the positioning hole with the help of the auxiliary block of the truncated cone structure under the elasticity of the first fixing member and the second fixing member themselves, thereby completing the docking work between the first fixing member and the second fixing member. When the insulating sleeve is bent, the side of the first fixing member and the second fixing member close to each other will no longer crack because the positioning member is stuck in the positioning hole, thereby improving the stability of wrapping the exposed cable.

[0009] Preferably, an auxiliary block is fixedly connected to the end surface of the positioning member, and the auxiliary block is a truncated cone structure.

[0010] The effect achieved by the above components is that the auxiliary block with a truncated cone structure facilitates the rapid positioning work between the positioning piece and the positioning hole.

[0011] Preferably, the side wall of the clamping strip is evenly fixedly connected with four convex strips, the inner side of the first fixing piece is evenly provided with a plurality of strip grooves, the size of the convex strips matches the size of the strip grooves, and the outer side of the first fixing piece is provided with two limiting grooves.

[0012] The effect achieved by the above-mentioned components is: when it is necessary to open the insulating sleeve to carry out maintenance work on the line, the side wall of the second fixing piece can be pressed, and the setting of the limit groove facilitates the bending work of the second fixing piece. When the strip groove on the second fixing piece is sleeved on the surface of the convex strip, continue to press the side wall of the second fixing piece to press the arrow-shaped structure of the card strip into a flat shape, and then the card strip in the second fixing piece can be removed.

[0013] Preferably, two slope surfaces are provided on the inner side of the first fixing member, and the two slope surfaces form an "eight"-shaped structure.

[0014] The effect achieved by the above-mentioned components is: by means of the slope surface, the clamping strip is pushed out from the inner side of the second fixing member, and at this time, the clamping strip in the second fixing member can be removed.

[0015] Preferably, sealing grooves are provided on both sides of the insulating sleeve, the cross-section of the sealing grooves is a wavy line structure, and the sealing grooves on both sides of the insulating sleeve are cross-connected.

[0016] The effects achieved by the above components are as follows: sealing grooves with a wavy line structure are provided on both sides of the insulating sleeve, which improves the tightness of the connection between the two sides of the insulating sleeve and further ensures the sealing effect of the insulating sleeve during use.

[0017] Preferably, a protective device is provided on the surface of the insulating sleeve, and the protective device includes a plurality of glue sticks, and the plurality of glue sticks are evenly glued to the side wall of the insulating sleeve, and a sphere is fixedly connected to one end of the glue stick away from the insulating sleeve, and a protective block is provided on the surface of the sphere, and a spherical cavity is provided on the surface of the protective block, and the sphere is located on the inner wall of the spherical cavity, and a card groove is provided on the surface of the protective block, and the card groove has a "V"-shaped structure, and the angle of the inner wall of the card groove is "90°".

[0018] The effect achieved by the above components is: during the use of the insulating sleeve, the protective block is first put on the surface of the rubber ball body corresponding to the corner position near the wall. The setting of the spherical cavity facilitates the quick clamping work between the rubber stick and the protective block, and the slot on the protective block is clamped on the corner, thereby reducing the friction between the insulating sleeve and the corner position during use.

[0019] Preferably, a circular hole is provided on the surface of the protective block, a reserved groove is provided on the surface of the card slot on the protective block, the groove width of the reserved groove becomes narrower from top to bottom, the reserved groove is connected to the circular hole, and the spherical cavity is connected to the circular hole.

[0020] The effect achieved by the above components is that the glue will flow into the connecting groove through the reserved groove, and the glue can be evenly drained at this time. The reserved groove is set to a structure that is wide at the top and narrow at the bottom, so that the closer the circular hole is to the lower side, the slower the flow rate, thereby reducing the risk of glue dripping quickly from under the protective block.

[0021] Preferably, the side wall of the reserved groove is evenly connected with a plurality of connecting grooves, and the connecting grooves are formed by splicing rectangular grooves and circular grooves.

[0022] The effect achieved by the above components is that the glue will flow into the connecting groove through the reserved groove, and at this time, the glue can be evenly drained.

[0023] Preferably, the processing method comprises the following steps:

[0024] S1: The insulating sleeve provided with the first fixing member and the second fixing member, the protective block with the card slot structure, the rubber stick with the spherical structure, and the arrow-shaped card strip are injection molded, and then injection molded through the mold, so as to facilitate the preliminary molding and processing of the product, and realize the preliminary processing of the insulating sleeve. In this process, the slope surface on the first fixing member and the convex strip on the second fixing member are processed through the structure of the injection mold, and the sealing groove on the insulating sleeve and the spherical cavity on the protective block are also processed through the structure of the mold;

[0025] S2: cutting the positioning piece formed by injection molding of the extrusion die and bonding it to the side wall of the clip strip by hot-melt connection, and then bonding the clip strip to the second fixing piece by hot-melt connection;

[0026] S3: Processing the positioning hole on the first fixing member and the circular hole and the through hole on the protective block by punching;

[0027] S4: The strip grooves and the limiting grooves on the first fixing member and the reserved grooves, the connecting grooves and the clamping grooves on the protective block are all processed by hot melting.

[0028] Compared with the prior art, the advantages and positive effects of the present invention are:

[0029] 1. In the present invention, a protective device is provided, and after the insulating sleeve is put on the surface of the exposed wire, the first fixing member and the second fixing member are pressed toward the side close to each other, and the arrow-shaped clamping strip on the second fixing member is clamped into the inner wall of the first fixing member. When the positioning member on the clamping strip penetrates into the inner side of the first fixing member, the squeezed first fixing member and the second fixing member can be released. At this time, the positioning member is elastically inserted into the positioning hole by the auxiliary block of the truncated cone structure, thereby completing the docking work between the first fixing member and the second fixing member. The auxiliary block of the truncated cone structure facilitates the rapid positioning work between the positioning member and the positioning hole, and makes a connection structure of a disconnecting structure, thereby reducing the situation that the insulating sleeve will continue to crack along the opening position due to the traditional setting of a whole-strip connector, and reduces the production of the insulating sleeve. The injection molding raw material further realizes the production cost of the insulating sleeve. Sealing grooves with a wavy line structure are provided on both sides of the insulating sleeve, which improve the tightness of the connection between the two sides of the insulating sleeve and further ensure the sealing effect of the insulating sleeve during use. When the insulating sleeve is bent, the side where the first fixing member and the second fixing member are close to each other will no longer crack due to the positioning member being stuck in the positioning hole, thereby improving the stability of wrapping the exposed cable. By setting a connecting device, the two sides of the insulating sleeve are connected in a disconnecting manner, which reduces the cracking of the insulating sleeve at a single position when the wires on the power grid are cracked by external force during the use of the insulating sleeve. It is the fuse of the overall cracking of the insulating sleeve. When the insulating sleeve is subjected to a slight external force, the insulating sleeve will continue to crack along the insulating sleeve at the opening position, thereby reducing the safety hazards during the use of the insulating sleeve to a certain extent.

[0030] 2. When it is necessary to open the insulating sleeve to carry out maintenance work on the line, the side wall of the second fixing piece can be pressed. The setting of the limit groove facilitates the bending work of the second fixing piece. When the strip groove on the second fixing piece is sleeved on the surface of the convex strip, continue to press the side wall of the second fixing piece to press the card strip of the arrow-shaped structure into a flat shape. The card strip can be pushed out from the inside of the second fixing piece with the help of the slope surface. At this time, the card strip in the second fixing piece can be removed, which facilitates the opening of the insulating sleeve. The setting of the strip groove and the convex strip increases the friction force during the driving process of the card strip, thereby improving the stability of the card strip during the driving process.

[0031] 3. In the present invention, by setting a protective device, when encountering a corner structure during the process of pulling the wire, the wire is easily rubbed against the corner position when it is pulled by external force, and is easily scratched by the sharp corner, which easily causes the insulating sleeve on the surface of the wire to be worn. In the process of using the insulating sleeve, the protective block is firstly put on the surface of the rubber ball body corresponding to the corner position. The setting of the spherical cavity facilitates the rapid clamping work between the glue stick and the protective block. The clamping groove on the protective block is clamped on the corner. At this time, glue is injected into the circular hole, and the glue will flow into the rubber stick through the reserved groove. In the connecting groove, the glue can be evenly drained at this time. The reserved groove is set to a structure that is wide at the top and narrow at the bottom, so that the closer the circular hole is to the bottom, the slower the flow rate, thereby reducing the glue from dripping quickly from the bottom of the protective block. The setting of the through hole facilitates the drainage of the glue into the spherical cavity, and then facilitates the fixation between the sphere and the protective block. By setting up a protective device, the protective block is bonded to the corner of the wall with evenly distributed glue, thereby reducing the friction between the insulating sleeve and the corner during use, and improving the safety of the insulating sleeve during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional structural schematic diagram of a prefabricated insulating sheath for a power grid and a processing method thereof is provided for the present invention;

[0033] Figure 2 A partially disassembled structural schematic diagram of a prefabricated insulating sheath for a power grid and a processing method thereof proposed by the present invention;

[0034] Figure 3 The present invention provides a schematic structural diagram of a connection device in a prefabricated insulating sheath for a power grid and a processing method thereof;

[0035] Figure 4 The present invention provides a schematic structural diagram of a second fixing member in a prefabricated insulating sheath for a power grid and a processing method thereof;

[0036] Figure 5 The present invention provides a schematic structural diagram of a first fixing member in a prefabricated insulating sheath for a power grid and a processing method thereof;

[0037] Figure 6 The present invention proposes a prefabricated insulating sheath for power grid and a processing method thereof. Figure 4 Enlarged view of point C;

[0038] Figure 7 The present invention proposes a prefabricated insulating sheath for power grid and a processing method thereof. Figure 5 A partial structural diagram of

[0039] Figure 8 The present invention proposes a prefabricated insulating sheath for power grid and a processing method thereof. Figure 2 A magnified image of point A;

[0040] Fig. 9 The present invention provides a schematic structural diagram of a protective device in a prefabricated insulating sheath for a power grid and a processing method thereof;

[0041] Fig.10 The present invention proposes a prefabricated insulating sheath for power grid and a processing method thereof. Fig. 9 A schematic cross-sectional structure diagram of;

[0042] Fig.11 The present invention proposes a prefabricated insulating sheath for power grid and a processing method thereof. Figure 2 Enlarged view of point B.

[0043] Legend: 1. Insulating sleeve; 2. Connecting device; 201. First fixing member; 202. Second fixing member; 203. Clip strip; 204. Sloped surface; 205. Raised strip; 206. Positioning member; 207. Auxiliary block; 208. Positioning hole; 209. Strip groove; 210. Limiting groove; 211. Sealing groove; 3. Protective device; 31. Protective block; 32. Reserved groove; 33. Connecting groove; 34. Clip slot; 35. Circular hole; 36. Spherical cavity; 37. Through hole; 38. Glue stick; 39. Sphere. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0046] Embodiment 1, as Figure 1-11 As shown, the present invention provides a prefabricated insulating sheath for a power grid and a processing method thereof, comprising an insulating sheath 1, the cross section of the insulating sheath 1 is an unclosed circular ring structure, a connecting device 2 is provided on the surface of the insulating sheath 1, and a protective device 3 is provided on the surface of the insulating sheath 1.

[0047] The specific settings and functions of the connecting device 2 and the protective device 3 are described in detail below.

[0048] like Figure 4 and Figure 5As shown, the connection device 2 includes a first fixing member 201, a second fixing member 202, a positioning member 206 with a positioning structure and a positioning hole 208, and an arrow-shaped clamping strip 203. By providing the connection device 2, the two sides of the insulating sleeve 1 are connected in a disconnecting manner, which reduces the situation that when the wires on the power grid are cracked by external forces during the use of the insulating sleeve 1, the cracking of the insulating sleeve 1 at a single position is the fuse for the cracking of the insulating sleeve 1 as a whole. When the insulating sleeve 1 is subjected to a slight external force, the insulating sleeve 1 will continue to crack along the insulating sleeve 1 at the opening position, which reduces the safety hazards in the use of the insulating sleeve 1 to a certain extent.

[0049] The first fixing member 201 and the second fixing member 202 are fixedly connected to the two sides of the insulating sleeve 1 respectively, the arrow-shaped structure clip 203 is fixedly connected to the side wall of the second fixing member 202, and a plurality of positioning members 206 are evenly fixedly connected to the side wall of the arrow-shaped structure clip 203. A plurality of positioning holes 208 are opened on the inner wall of the first fixing member 201. The size of the positioning hole 208 is adapted to the size of the positioning member 206, and the positioning hole 208 is for the positioning member 206 to be inserted. After the insulating sleeve 1 is put on the surface of the exposed wire, the first fixing member 201 and the second fixing member 202 are pressed toward the side close to each other, and the arrow-shaped clamping strip 203 on the second fixing member 202 will be stuck into the inner wall of the first fixing member 201. When the positioning member 206 on the clamping strip 203 penetrates into the inner side of the first fixing member 201, the squeezed first fixing member 201 and the second fixing member 202 can be released. At this time, the positioning member 206 is inserted into the positioning hole 208 by the first fixing member 201 and the second fixing member 202 by the auxiliary block 207 of the truncated cone structure under the elasticity of the first fixing member 201 and the second fixing member 202, thereby completing the docking work between the first fixing member 201 and the second fixing member 202. When the insulating sleeve 1 is bent, the side close to each other of the first fixing member 201 and the second fixing member 202 will no longer crack because the positioning member 206 is stuck in the positioning hole 208, thereby improving the stability of wrapping the exposed cable. The end face of the positioning member 206 is fixedly connected with the auxiliary block 207, and the auxiliary block 207 is a truncated cone structure. The auxiliary block 207 of the truncated cone structure facilitates the rapid positioning between the positioning member 206 and the positioning hole 208 .

[0050] The side wall of the clamping strip 203 is evenly fixed with four convex strips 205, and the inner side of the first fixing member 201 is evenly provided with a plurality of strip grooves 209, the size of the convex strips 205 matches the size of the strip grooves 209, and the outer side of the first fixing member 201 is provided with two limiting grooves 210. When the insulating sleeve 1 needs to be opened to repair and maintain the line, the side wall of the second fixing member 202 can be pressed, and the setting of the limiting grooves 210 facilitates the bending work of the second fixing member 202. When the strip grooves 209 on the second fixing member 202 are sleeved on the surface of the convex strips 205, the side wall of the second fixing member 202 is continued to be pressed to press the clamping strip 203 of the arrow-shaped structure into a flat shape, and the work of removing the clamping strip 203 in the second fixing member 202 can be realized. Two slope surfaces 204 are provided on the inner side of the first fixing member 201, and the two slope surfaces 204 form an "eight"-shaped structure. The inclined surface 204 is used to push the clamping strip 203 out of the inner side of the second fixing member 202, and the clamping strip 203 in the second fixing member 202 can be removed. Sealing grooves 211 are provided on both sides of the insulating sleeve 1. The cross section of the sealing grooves 211 is a wavy line structure, and the sealing grooves 211 on both sides of the insulating sleeve 1 are cross-connected. The sealing grooves 211 with a wavy line structure are provided on both sides of the insulating sleeve 1, which improves the tightness of the connection between the two sides of the insulating sleeve 1 and further ensures the sealing effect of the insulating sleeve 1 during use.

[0051] like Fig. 9 and Fig.10 As shown, the protective device 3 includes a plurality of glue sticks 38, which are uniformly glued to the side wall of the insulating sleeve 1. The end of the glue stick 38 away from the insulating sleeve 1 is fixedly connected with a sphere 39, and the surface of the sphere 39 is covered with a protective block 31. The surface of the protective block 31 is provided with a spherical cavity 36, and the sphere 39 is located on the inner wall of the spherical cavity 36. The surface of the protective block 31 is provided with a card slot 34, and the card slot 34 is a "V"-shaped structure, and the inner wall angle of the card slot 34 is "90°". In the process of using the insulating sleeve 1, the protective block 31 is firstly covered on the surface of the sphere 39 corresponding to the glue stick 38 near the corner position. The setting of the spherical cavity 36 facilitates the quick clamping work between the glue stick 38 and the protective block 31, and the card slot 34 provided on the protective block 31 is clamped on the corner, thereby reducing the friction between the insulating sleeve 1 and the corner position during use.

[0052] A circular hole 35 is provided on the surface of the protective block 31, and a reserved groove 32 is provided on the surface of the card slot 34 on the protective block 31. The width of the reserved groove 32 becomes narrower and narrower from top to bottom. The reserved groove 32 is connected to the circular hole 35, and the spherical cavity 36 is connected to the circular hole 35. The glue will flow into the connecting groove 33 through the reserved groove 32, and the glue can be evenly drained at this time. The reserved groove 32 is set to a structure that is wide at the top and narrow at the bottom, so that the closer the circular hole 35 is to the lower side, the slower the flow rate, thereby reducing the glue from dripping quickly from the bottom of the protective block 31. The side wall of the reserved groove 32 is evenly connected with a plurality of connecting grooves 33, and the connecting groove 33 is spliced ​​by a rectangular groove and a circular groove. The glue will flow into the connecting groove 33 through the reserved groove 32, and the glue can be evenly drained at this time.

[0053] The overall working principle is that after the insulating sleeve 1 is put on the surface of the exposed wire, the first fixing member 201 and the second fixing member 202 are pressed toward the side close to each other, and the arrow-shaped clamping strip 203 on the second fixing member 202 will be clamped into the inner wall of the first fixing member 201. When the positioning member 206 on the clamping strip 203 penetrates into the inner side of the first fixing member 201, the squeezed first fixing member 201 and the second fixing member 202 can be released. At this time, the positioning member 206 is inserted into the positioning hole 208 by the first fixing member 201 and the second fixing member 202 under the elasticity of the first fixing member 201 and the second fixing member 202 with the help of the auxiliary block 207 of the truncated cone structure, thereby completing the docking work between the first fixing member 201 and the second fixing member 202. The auxiliary block 207 of the truncated cone structure facilitates the rapid positioning work between the positioning member 206 and the positioning hole 208, and the connection structure of the disconnecting structure is produced, which reduces the situation that the insulating sleeve 1 will continue to crack along the opening position due to the traditional setting of the whole strip connecting member. The present invention can improve the performance of the present invention and reduce the injection molding materials for making the insulating sleeve 1, further realizing the production cost of the insulating sleeve 1. The two sides of the insulating sleeve 1 are provided with sealing grooves 211 with a wavy line structure, which improve the tightness of the connection between the two sides of the insulating sleeve 1 and further ensure the sealing effect of the insulating sleeve 1 during use. When the insulating sleeve 1 is bent, the side where the first fixing member 201 and the second fixing member 202 are close to each other will no longer crack due to the positioning member 206 being stuck in the positioning hole 208, thereby improving the stability of wrapping the exposed cable. By setting the connecting device 2, the two sides of the insulating sleeve 1 are connected in a disconnecting manner, which reduces the cracking of the insulating sleeve 1 at a single position when the wires on the power grid are cracked by external forces during the use of the insulating sleeve 1. The fuse of the overall cracking of the insulating sleeve 1 is reduced. When the insulating sleeve 1 is subjected to a slight external force, the insulating sleeve 1 will continue to crack along the insulating sleeve 1 at the opening position, thereby reducing the safety hazards of the insulating sleeve 1 during use to a certain extent.

[0054] When it is necessary to open the insulating sleeve 1 to perform maintenance work on the line, the side wall of the second fixing piece 202 can be pressed. The setting of the limit groove 210 facilitates the bending of the second fixing piece 202. When the strip groove 209 on the second fixing piece 202 is sleeved on the surface of the convex strip 205, continue to press the side wall of the second fixing piece 202 to press the arrow-shaped structure of the card strip 203 into a flat shape. The inclined surface 204 can be used to push the card strip 203 out of the inner side of the second fixing piece 202. At this time, the removal of the card strip 203 in the second fixing piece 202 can be achieved, which facilitates the opening of the insulating sleeve 1. The setting of the strip groove 209 and the convex strip 205 increases the friction force during the driving process of the card strip 203, thereby improving the stability of the card strip 203 during the driving process.

[0055] In the process of pulling the wire, when encountering a corner structure, the wire is easily rubbed against the corner position under the action of external force, and is easily scratched by the sharp corner, which easily causes the insulating sleeve 1 on the surface of the wire to be worn. In the process of using the insulating sleeve 1, the protective block 31 is first put on the surface of the ball 39 of the glue stick 38 corresponding to the corner position. The setting of the spherical cavity 36 facilitates the rapid clamping work between the glue stick 38 and the protective block 31. The clamping groove 34 on the protective block 31 is clamped on the corner. At this time, glue is injected into the circular hole 35, and the glue will flow into the connecting groove 33 through the reserved groove 32. At this time, the glue can be evenly drained. The reserved groove 32 is set to a structure that is wide at the top and narrow at the bottom, so that the closer the circular hole 35 is to the lower side, the slower the flow rate, thereby reducing the glue from dripping quickly from the bottom of the protective block 31. The setting of the through hole 37 facilitates the drainage of the glue into the spherical cavity 36, and then facilitates the fixation between the sphere 39 and the protective block 31. By setting the protective device 3, the protective block 31 is bonded to the corner of the wall with evenly distributed glue, thereby reducing the friction between the insulating sleeve 1 and the corner during use, thereby improving the safety of the insulating sleeve 1 during use.

[0056] Processing method: S1: The insulating sleeve 1 provided with the first fixing member 201 and the second fixing member 202, the protective block 31 with the card slot 34 structure, the glue stick 38 with the sphere 39 structure, and the arrow-shaped card strip 203 are injection molded, and then injection molded through the mold, so as to facilitate the preliminary molding processing of the product and realize the preliminary processing of the insulating sleeve 1. In this process, the slope surface 204 on the first fixing member 201 and the convex strip 205 on the second fixing member 202 are all processed through the structure of the injection mold, and the sealing groove 211 on the insulating sleeve 1 and the spherical cavity 36 on the protective block 31 are also processed through the structure of the mold;

[0057] S2: After cutting the positioning member 206 formed by injection molding of the extrusion die, the positioning member 206 is bonded to the side wall of the clamping strip 203 by means of hot-melt connection, and then the clamping strip 203 is bonded to the second fixing member 202 by means of hot-melt connection;

[0058] S3: Processing the positioning hole 208 on the first fixing member 201 and the circular hole 35 and the through hole 37 on the protection block 31 by punching;

[0059] S4: The strip groove 209 and the limiting groove 210 on the first fixing member 201 and the reserved groove 32 , the connecting groove 33 and the clamping groove 34 on the protection block 31 are all processed by hot melting.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A prefabricated insulating sheath for a power grid, comprising an insulating sheath (1), characterized in that: The cross section of the insulating sleeve (1) is an unclosed circular ring structure. The surface of the insulating sleeve (1) is provided with a connecting device (2), and the connecting device (2) comprises a first fixing member (201), a second fixing member (202), a positioning member (206) having a positioning structure and a positioning hole (208), and a clamping strip (203) with an arrow-shaped structure; the first fixing member (201) and the second fixing member (202) are respectively fixedly connected to two sides of the insulating sleeve (1), the clamping strip (203) with the arrow-shaped structure is fixedly connected to the side wall of the second fixing member (202), a plurality of the positioning members (206) are evenly fixedly connected to the side wall of the clamping strip (203) with the arrow-shaped structure, a plurality of the positioning holes (208) are opened on the inner wall of the first fixing member (201), the size of the positioning holes (208) is adapted to the size of the positioning member (206), and the positioning holes (208) are The positioning member (206) is inserted therethrough; the end face of the positioning member (206) is fixedly connected with an auxiliary block (207), and the auxiliary block (207) is in a truncated cone-shaped structure; the side wall of the clamping strip (203) is evenly fixedly connected with four convex strips (205); the inner side of the first fixing member (201) is evenly provided with a plurality of strip grooves (209), the size of the convex strips (205) is matched with the size of the strip grooves (209), and the outer side of the first fixing member (201) is provided with two limiting grooves (210); the inner side of the first fixing member (201) is provided with two inclined surfaces (204), and the two inclined surfaces (204) form an "eight"-shaped structure; both sides of the insulating sleeve (1) are provided with sealing grooves (211), and the cross section of the sealing grooves (211) is in a wavy line structure, and the sealing grooves (211) on both sides of the insulating sleeve (1) are cross-connected.

2. A prefabricated insulating sheath for power grid according to claim 1, characterized in that: The surface of the insulating sleeve (1) is provided with a protective device (3), the protective device (3) comprising a plurality of glue sticks (38), the plurality of glue sticks (38) being evenly glued to the side wall of the insulating sleeve (1), the end of the glue stick (38) away from the insulating sleeve (1) being fixedly connected with a sphere (39), the surface of the sphere (39) being covered with a protective block (31), the surface of the protective block (31) being provided with a spherical cavity (36), the sphere (39) being located on the inner wall of the spherical cavity (36), the surface of the protective block (31) being provided with a slot (34), the slot (34) being in a "V"-shaped structure, and the inner wall of the slot (34) having an included angle of "90°".

3. The prefabricated insulating sheath for power grid according to claim 2, characterized in that: A circular hole (35) is provided on the surface of the protection block (31), a reserved groove (32) is provided on the surface of the clamping groove (34) on the protection block (31), the groove width of the reserved groove (32) becomes narrower from top to bottom, the reserved groove (32) is connected to the circular hole (35), and the spherical cavity (36) is connected to the circular hole (35).

4. A prefabricated insulating sheath for power grid according to claim 3, characterized in that: The side wall of the reserved groove (32) is evenly connected with a plurality of connection grooves (33), and the connection grooves (33) are formed by splicing a rectangular groove and a circular groove.

5. A method for processing a prefabricated insulating sheath of a power grid, characterized in that: The prefabricated insulating sheath for power grid according to any one of claims 1 to 4 is used, comprising the following steps: S1: an insulating sleeve (1) provided with a first fixing member (201) and a second fixing member (202), a protective block (31) with a card slot (34) structure, a rubber stick (38) with a sphere (39) structure, and an arrow-shaped card strip (203) are injection molded, and then injection molded through a mold, thereby facilitating the preliminary molding and processing of the product, and realizing the preliminary processing of the insulating sleeve (1). In this process, the slope surface (204) on the first fixing member (201) and the convex strip (205) on the second fixing member (202) are all processed through the structure of the injection mold, and the sealing groove (211) on the insulating sleeve (1) and the spherical cavity (36) on the protective block (31) are also processed through the structure of the mold; S2: cutting the positioning piece (206) formed by injection molding of the extrusion die and bonding it to the side wall of the clamping strip (203) by means of hot-melt connection, and then bonding the clamping strip (203) to the second fixing piece (202) by means of hot-melt connection; S3: Processing the positioning hole (208) on the first fixing member (201) and the circular hole (35) and the through hole (37) on the protection block (31) by punching; S4: The strip groove (209), the limiting groove (210) on the first fixing member (201), and the reserved groove (32), the connecting groove (33) and the clamping groove (34) on the protective block (31) are all processed by hot melting.

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