Insulation shielding tool for 0.4 kV low-voltage cable line

Abstract

The invention discloses an insulation shielding tool for a 0.4 kV low-voltage cable line, and relates to the technical field of low-voltage cable insulation shielding, the insulation shielding tool comprises a vacuum insulation shielding pipe and a sealing insulation cloth, the vacuum insulation shielding pipe comprises an insulation buckle pipe, and a sliding sealing device is installed on the top surface of the insulation buckle pipe in a sliding mode; the sealing insulation cloth comprises insulation covering cloth, and a sealing structure is installed on the edge of the insulation covering cloth. The sliding sealing device comprises a second sliding support, and a vacuum pumping mechanism is installed on the second sliding support. The insulating buckle pipes are installed on the cable in a buckling and sleeving mode, then the insulating covering cloth is arranged between the insulating buckle pipes on the two sides in a covering mode, the sealing structure is clenched, and therefore the cable can be sealed. The sliding sealing device is rotated to seal a gap between the insulation buckle pipe and the insulation covering cloth, and the vacuum air extraction mechanism is started to extract air in the insulation covering cloth, so that the insulation covering cloth is tightly attached to the surface of the hanging rod and the exposed cable, and the insulation performance of the insulation covering cloth is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage cable insulation shielding, in particular to an insulation shielding device for a 0.4kV low-voltage cable line. Background Art

[0002] Insulation shielding equipment refers to insulation protection tools or materials used for electrical equipment, cable lines, etc. Its main function is to prevent electrical equipment from leakage, short circuit, contact and other safety accidents during operation, and provide a good insulation barrier. Common insulation shielding equipment includes: insulation shielding tubes, insulation shielding covers, insulation cover cloths, heat shrink tubing and insulation sleeves;

[0003] During low-voltage cable line operations, insulating rods need to be insulated and shielded. Workers typically use standard insulating cover cloth to wrap the rods and exposed cables to prevent contact with live parts during operation. However, with traditional wrapping methods, gaps exist between the insulating cover cloth, the rods, and the exposed cable surfaces. This can degrade the insulation performance of the cover cloth. If a cable fault occurs, current may leak through these gaps, increasing the risk of electric shock.

[0004] At the same time, dust, moisture or other pollutants are likely to accumulate in the gaps between the insulation cover cloths, especially in humid or harsh environments. These pollutants will reduce the effectiveness of the insulation material and even cause further deterioration of the insulation performance. Long-term accumulation may also cause the insulation cover cloths to age, break or crack, increasing the possibility of electrical failures.

[0005] In addition, traditional insulating cover cloths require insulating cover cloth clamps to clamp and fix them on the cable. This fixing method is not reliable enough. In addition, the existence of gaps in the insulating cover cloth may cause the insulating cover cloth to loosen or fall off. Especially during operation, due to vibration of the hanging rod or external impact, the insulating cover cloth is prone to displacement or damage, which will expose the live parts and increase the risk of electric shock. Summary of the Invention

[0006] In response to the above shortcomings, the present invention provides an insulation shielding device for a 0.4kV low-voltage cable line, which can improve the insulation performance of the insulation cover cloth, eliminate the possibility of pollutants accumulating in the gaps of the insulation cover cloth, extend the service life of the insulation cover cloth, reduce related electrical failures, and reduce the possibility of the insulation cover cloth loosening or falling off, making the insulation cover cloth less likely to be displaced or damaged, effectively reducing the risk of electric shock to workers. The specific technical solution is as follows:

[0007] An insulation shielding device for a 0.4kV low-voltage cable line, comprising:

[0008] The vacuum insulated shielding tube comprises an insulating buckle tube, the bottom of which is provided with a strip-shaped opening, two insulating buckle tube buckle sleeves being mounted on the cables on both sides of the insulating hanging rod, an end tube being fixedly mounted on one end of the insulating buckle tube away from the insulating hanging rod, and a handle being mounted on the top surface of the end tube;

[0009] The sealing insulation cloth includes an insulation cover cloth, which is covered between the insulation buckle tubes on both sides and folded to cover the insulation surface of the cable on which the insulation hanging rod is hung and the end of the insulation buckle tube away from the end tube;

[0010] A sliding sealing device, the sliding sealing device being slidably mounted on the top surface of the insulating buckle tube, the sliding sealing device comprising a member for slidingly sealing the gap between the strip opening at the bottom of the insulating buckle tube and the insulating cover cloth, the sliding sealing device being mounted with a vacuum pumping mechanism for extracting air from the folded portion of the insulating cover cloth;

[0011] A sealing structure is installed at the edge of the insulation cover cloth, and the sealing structure is used to seal the edge of the folded part of the insulation cover cloth.

[0012] Preferably, an inner sleeve is fixedly installed on the inner wall of the insulating buckle tube;

[0013] A strip opening is provided at the bottom of the inner sleeve, the inner wall of the inner sleeve is tightly attached to the cable surface, the outer wall of the insulating buckle tube is provided with two groups of C-shaped grooves, and the outer wall of the insulating buckle tube is also provided with two groups of strip grooves. The two groups of strip grooves pass through the two groups of C-shaped grooves and extend to one end of the insulating buckle tube close to the insulating cover cloth.

[0014] Preferably, the sliding sealing device includes a sliding rod, a first sliding bracket and a second sliding bracket;

[0015] The first sliding bracket and the second sliding bracket are spaced apart and slidably mounted on the surface of the insulating buckle tube;

[0016] The sliding rod is installed between the first sliding bracket and the second sliding bracket, one end of the sliding rod is fixedly connected to the upper end of the second sliding bracket, and the other end of the sliding rod passes through the upper end of the first sliding bracket. The sliding rod passes through one end of the first sliding bracket and is fixedly installed with a limiting block. A spring is provided between the limiting block and the first sliding bracket, and the spring is sleeved on the outer wall of the sliding rod.

[0017] Preferably, one end of the first sliding bracket is in a C-shaped structure, and a first slider is provided on the inner wall of the C-shaped structure of the first sliding bracket. The first slider is slidably installed in the C-shaped slide groove on the surface of the insulating buckle tube away from the insulating cover cloth, and a first slide groove is provided on the side of the first sliding bracket close to the insulating cover cloth.

[0018] Preferably, one end of the second sliding bracket is in a C-shaped structure, and a second slider is provided on the inner wall of the C-shaped structure of the second sliding bracket. The second slider is slidably installed in the C-shaped slide groove on the surface of the insulating buckle tube close to the insulating cover cloth, and a second slide groove is provided on the side of the second sliding bracket away from the insulating cover cloth.

[0019] Preferably, the sliding sealing device includes a lifting grip plate;

[0020] The lifting grip plate is arranged on the side of the sliding rod close to the insulating buckle tube, and an insulating sealing plug is fixedly installed on the side of the lifting grip plate away from the sliding rod. A grip plate slider is provided on the end of the lifting grip plate close to the first sliding bracket, and the grip plate slider is slidably installed in the first sliding groove. A sealing plug slider is provided on the end of the insulating sealing plug close to the second sliding bracket, and the sealing plug slider is slidably installed in the second sliding groove.

[0021] Preferably, the vacuum pumping mechanism includes a sealing glue nozzle;

[0022] The sealing glue nozzle is fixedly installed on the side of the second sliding bracket close to the insulating cover cloth, and the air pump housing is fixedly installed on the side of the sliding rod away from the lifting grip plate. One end of the air pump housing is fixedly connected to the vacuum air pipe, and the vacuum air pipe extends and is inserted into the inside of the sealing glue nozzle.

[0023] Preferably, a vacuum air nozzle is installed at one end of the vacuum air pipe inserted into the sealing glue nozzle;

[0024] There are several tiny air holes distributed on the surface of the vacuum air nozzle, several annular brackets are installed on the inner wall of the air pump housing, a fan is installed in the middle of the annular bracket, a motor is fixedly installed in the center of the fan, and a grid plate is installed on the end of the air pump housing away from the vacuum air pipe.

[0025] Preferably, the sealing structure includes a sealing strip;

[0026] The sealing strip is fixedly bonded to the outer edge of the insulating cover cloth. A protrusion is provided on the side of the sealing strip close to the insulating cover cloth. The protrusion on the surface of the sealing strip is pressed tightly against the surface of the insulating cover cloth.

[0027] Preferably, the sealing structure further comprises a sealing strip;

[0028] The sealing strip is fixedly bonded to the outside of the sealing strip, and a strip-shaped protrusion is provided on the inside of the sealing strip. The strip-shaped protrusion is provided on both sides of the sealing strip away from the cable, and the strip-shaped protrusions on both sides of the sealing strip can be embedded with each other for sealing.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the present invention, the insulating buckle tube buckle sleeve is installed on the cables on both sides of the insulating hanging rod, and then the insulating cover cloth is covered between the insulating buckle tubes on both sides, the sealing structure at the edge of the insulating cover cloth is pinched, and then the sliding sealing device is rotated to seal the gap between the strip opening at the bottom of the insulating buckle tube and the insulating cover cloth, and finally the vacuum exhaust mechanism is started to extract the air in the insulating cover cloth, so that the insulating cover cloth is in a vacuum state, so that the insulating cover cloth is close to the hanging rod and the exposed cable surface, thereby improving the insulation performance of the insulating cover cloth, eliminating the possibility of pollutants accumulating in the gap of the insulating cover cloth, extending the service life of the insulating cover cloth, reducing related electrical failures, and reducing the possibility of the insulating cover cloth loosening or falling off, so that the insulating cover cloth is not easily displaced or damaged, and effectively reducing the risk of electric shock for workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0032] Figure 1 A schematic diagram of the installation of the vacuum insulated shielding tube provided by the present invention;

[0033] Figure 2 A schematic diagram of the sealed insulating cloth blanket provided by the present invention;

[0034] Figure 3 Schematic diagram of vacuum covering of the sealed insulating cloth provided by the present invention;

[0035] Figure 4 Schematic diagram of vacuum covering of the sealed insulating cloth without hanging rod provided by the present invention;

[0036] Figure 5 An exploded view of the sealing insulation cloth provided by the present invention;

[0037] Figure 6 A sealing schematic diagram of the sliding sealing device provided by the present invention;

[0038] Figure 7 A schematic diagram of the internal structure of the insulating buckle tube provided by the present invention;

[0039] Figure 8 This is a schematic diagram of the installation of the insulating buckle tube provided by the present invention;

[0040] Figure 9 This is a schematic diagram of the installation of the sliding sealing device provided by the present invention;

[0041] Figure 10 A schematic structural diagram of the sliding sealing device provided by the present invention;

[0042] Figure 11 A schematic diagram of an insert seal of the sliding sealing device provided by the present invention;

[0043] Figure 12 A schematic diagram of a flip of the sliding sealing device provided by the present invention;

[0044] Figure 13 A cross-sectional view of a sliding sealing device provided by the present invention;

[0045] Figure 14 A schematic diagram of the structure of the vacuum pumping mechanism provided by the present invention;

[0046] Figure 15 This is a cross-sectional view of the sealed insulating cloth provided by the present invention.

[0047] Reference numerals:

[0048] Insulating cover cloth 111, sealing strip 112, sealing strip 113, strip protrusion 114, insulating buckle tube 121, C-shaped slide groove 122, strip slide groove 123, inner sleeve 124, end tube 131, handle 132, first sliding bracket 141, first slide groove 142, first slider 143, second sliding bracket 151, second slide groove 152, second slider 153, slide rod 161, limit block 162, spring 17, lifting grip plate 181, grip plate slider 182, insulating sealing plug 183, sealing plug slider 184, sealing glue nozzle 19, vacuum air pipe 20, vacuum air nozzle 21, air pump housing 221, grid plate 222, annular bracket 223, fan 224, motor 225. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0051] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first," "second," and "third" are used solely for descriptive purposes and to distinguish technical features. They are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Example 1

[0054] See also Figure 1-6 An insulation shielding device for 0.4kV low-voltage cable lines, a vacuum insulation shielding tube, includes an insulation buckle tube 121, a strip opening is provided at the bottom of the insulation buckle tube 121, two insulation buckle tubes 121 are buckled and installed on the cables on both sides of the insulation hanging rod, and an end tube 131 is fixedly installed on the end of the insulation buckle tube 121 away from the insulation hanging rod, and a handle 132 is installed on the top surface of the end tube 131;

[0055] Sealing insulation cloth, including an insulation cover cloth 111, the insulation cover cloth 111 covers between the insulation buckle tubes 121 on both sides, the insulation cover cloth 111 is folded to cover the insulation surface of the cable hung with the insulation hanging rod and the end of the insulation buckle tube 121 away from the end tube 131;

[0056] A sliding sealing device is slidably mounted on the top surface of the insulating buckle tube 121. The sliding sealing device includes a device for slidingly sealing the gap between the strip opening at the bottom of the insulating buckle tube 121 and the insulating cover cloth 111. The sliding sealing device is equipped with a vacuum exhaust mechanism for extracting air from the folded portion of the insulating cover cloth 111.

[0057] A sealing structure is installed at the edge of the insulating cover cloth 111, and the sealing structure is used to seal the edge of the folded portion of the insulating cover cloth 111.

[0058] The sliding sealing device includes a second sliding bracket 151 , which is slidably mounted on the surface of the insulating buckle tube 121 , and a vacuum pumping mechanism is mounted on the second sliding bracket 151 .

[0059] In the above embodiment, it should be noted that the end tube 131, the handle 132 and the insulating buckle tube 121 are all made of insulating plastic. The inner diameter of the end tube 131 is larger than the inner diameter of the insulating buckle tube 121. When installing the insulating buckle tube 121, by holding the handle 132 by hand, first put one end of the end tube 131 on the outer wall of the cable, and then press down the insulating buckle tube 121 so that the insulating buckle tube 121 is gradually buckled on the cable along the direction of the cable. The end tube 131 has the function of guiding the installation of the insulating buckle tube 121.

[0060] The insulating cover cloth 111 is made of a composite of polyester, rubber and nylon materials, and has good wear resistance, waterproofness and insulation properties. When the insulating cover cloth 111 is in a vacuum state, under the action of atmospheric pressure, the insulating cover cloth 111 will cling to the hanging rod and the exposed cable surface.

[0061] By installing the insulating buckle tube 121 buckle sleeve on the cables on both sides of the insulating hanging rod, then covering the insulating cover cloth 111 between the insulating buckle tubes 121 on both sides, pinching the sealing structure at the edge of the insulating cover cloth 111, and then rotating the sliding sealing device to seal the gap between the strip opening at the bottom of the insulating buckle tube 121 and the insulating cover cloth 111, and finally starting the vacuum exhaust mechanism to extract the air in the insulating cover cloth 111, so that the insulating cover cloth 111 is in a vacuum state, so as to achieve the effect of making the insulating cover cloth 111 close to the hanging rod and the exposed cable surface, thereby improving the insulation performance of the insulating cover cloth 111, eliminating the possibility of pollutants accumulating in the gap of the insulating cover cloth 111, extending the service life of the insulating cover cloth 111, reducing related electrical failures, and reducing the possibility of the insulating cover cloth 111 loosening or falling off, so that the insulating cover cloth 111 is not easily displaced or damaged, and effectively reducing the risk of electric shock for workers.

[0062] Please continue reading Figure 1-9Furthermore, an inner sleeve 124 is fixedly installed on the inner wall of the insulating buckle tube 121, and a strip opening is provided at the bottom of the inner sleeve 124. The inner wall of the inner sleeve 124 is tightly attached to the surface of the cable, and two groups of C-shaped slide grooves 122 are provided on the outer wall of the insulating buckle tube 121. Two groups of strip slide grooves 123 are also provided on the outer wall of the insulating buckle tube 121. The two groups of strip slide grooves 123 pass through the two groups of C-shaped slide grooves 122 and extend to the end of the insulating buckle tube 121 close to the insulating cover cloth 111. The sliding sealing device includes a first sliding bracket 141. One end of the first sliding bracket 141 is a C-shaped structure. The inner wall of the C-shaped structure of the first sliding bracket 141 A first slider 143 is provided, and the first slider 143 is slidably installed in the C-shaped slide groove 122 on the surface of the insulating buckle tube 121 away from the insulating cover cloth 111. The first slide groove 142 is provided on the side of the first sliding bracket 141 close to the insulating cover cloth 111. One end of the second sliding bracket 151 is a C-shaped structure, and the inner wall of the C-shaped structure of the second sliding bracket 151 is provided with a second slider 153. The second slider 153 is slidably installed in the C-shaped slide groove 122 on the surface of the insulating buckle tube 121 close to the insulating cover cloth 111, and the second slide groove 152 is provided on the side of the second sliding bracket 151 away from the insulating cover cloth 111.

[0063] In the above embodiment, it should be noted that the inner sleeve 124 is made of insulating rubber, and the inner wall of the inner sleeve 124 has an interference fit with the surface of the cable. The inner sleeve 124 has the function of clamping the surface of the cable to prevent the insulating buckle 121 from rotating along the surface of the cable.

[0064] The C-shaped slide groove 122 has a limiting effect on the first slider 143 and the second slider 153. With the cooperation of the first slider 143, the second slider 153 and the C-shaped slide groove 122, the first sliding bracket 141 and the second sliding bracket 151 can only perform a 180° deflection movement in the insulating buckle tube 121. When the first sliding bracket 141 and the second sliding bracket 151 rotate to the lower side of the insulating buckle tube 121, the first slider 143 and the second slider 153 can slide into the strip slide groove 123 to achieve the effect of driving the first sliding bracket 141 and the second sliding bracket 151 to slide closer to the insulating cover cloth 111.

[0065] Continue reading Figure 8-14The sliding sealing device includes a sliding rod 161, which is installed between the first sliding bracket 141 and the second sliding bracket 151. One end of the sliding rod 161 is fixedly connected to the upper end of the second sliding bracket 151, and the other end of the sliding rod 161 passes through the upper end of the first sliding bracket 141. The sliding rod 161 passes through one end of the first sliding bracket 141 and is fixedly installed with a limit block 162. A spring 17 is provided between the limit block 162 and the first sliding bracket 141. The spring 17 is sleeved on the outer wall of the sliding rod 161. The sliding sealing device includes a lifting grip Plate 181, the lifting grip plate 181 is arranged on the side of the sliding rod 161 close to the insulating buckle tube 121, and the lifting grip plate 181 is fixedly installed with an insulating sealing plug 183 on the side away from the sliding rod 161. The lifting grip plate 181 is provided with a grip plate slider 182 at one end close to the first sliding bracket 141, and the grip plate slider 182 is slidably installed in the first slide groove 142. The insulating sealing plug 183 is provided with a sealing plug slider 184 at one end close to the second sliding bracket 151, and the sealing plug slider 184 is slidably installed in the second slide groove 152.

[0066] In the above embodiment, it should be noted that the slide rod 161 has the function of connecting the first sliding bracket 141 and the second sliding bracket 151, enabling the first sliding bracket 141 and the second sliding bracket 151 to deflect synchronously; the spring 17 always pushes the first sliding bracket 141 and applies a force to the first sliding bracket 141 to move closer to the second sliding bracket 151;

[0067] In the initial state, the first sliding bracket 141 and the second sliding bracket 151 are located on the upper side of the insulating buckle tube 121. At this time, the bottom of the insulating sealing plug 183 is close to the top surface of the insulating buckle tube 121. When the first sliding bracket 141 and the second sliding bracket 151 are deflected to the lower side of the insulating buckle tube 121, the second sliding bracket 151 is slid close to the side of the sealing insulating cover cloth 111, and then the lifting grip plate 181 is pulled upward to drive the insulating sealing plug 183 to slide upward and insert into the strip opening of the inner sleeve 124 and the insulating buckle tube 121. At the same time, the sealing plug slider 184 at one end of the insulating sealing plug 183 slides out of the second slide groove 152. At this time, the support of the sealing plug slider 184 is lost between the first sliding bracket 141 and the second sliding bracket 151. The spring 17 instantly pushes the first sliding bracket 141 close to the second sliding bracket 151, and at the same time, pushes the end of the insulating sealing plug 183 provided with the sealing plug slider 184 into the gap between the strip opening at the bottom of the insulating buckle tube 121 and the insulating cover cloth 111, so as to achieve the effect of sealing the gaps on both sides of the insulating cover cloth 111.

[0068] Please continue reading Figure 12-14The vacuum exhaust mechanism includes a sealing glue nozzle 19, which is fixedly mounted on the side of the second sliding bracket 151 close to the insulating cover cloth 111. An air pump housing 221 is fixedly mounted on the side of the sliding rod 161 away from the lifting grip plate 181. One end of the air pump housing 221 is fixedly connected to the vacuum air pipe 20, which extends and inserts into the inner side of the sealing glue nozzle 19. A vacuum air nozzle 21 is mounted on the end of the vacuum air pipe 20 inserted into the sealing glue nozzle 19. Several tiny air holes are distributed on the surface of the vacuum air nozzle 21. Several annular brackets 223 are mounted on the inner wall of the air pump housing 221. A fan 224 is mounted in the middle of the annular bracket 223. A motor 225 is fixedly mounted in the center of the fan 224. A grid plate 222 is mounted on the end of the air pump housing 221 away from the vacuum air pipe 20.

[0069] In the above embodiment, it should be noted that the motor 225 is externally connected to the power supply and control system. When the vacuum air nozzle 21 extracts air, the tiny pores on its surface can isolate the dust and dirt in the insulating cover cloth 111, thereby preventing damage to the internal structure of the air pump housing 221. Similarly, when the fan 224 rotates in the opposite direction to blow air into the vacuum air pipe 20, the mesh plate 222 can isolate external dust and dirt, thereby preventing damage to the internal structure of the air pump housing 221.

[0070] When the first sliding bracket 141 and the second sliding bracket 151 are deflected to the lower side of the insulating buckle tube 121, the second sliding bracket 151 is slid close to the side of the sealed insulating cover cloth 111, driving the sealing glue nozzle 19 to insert into the gap on both sides of the sealed insulating cover cloth 111, and then starting the motor 225 to drive the fan 224 to rotate, and the air in the insulating cover cloth 111 is drawn into the vacuum air pipe 20 through the vacuum air nozzle 21, and then the air is discharged from the grid plate 222 through the air pump housing 221 to achieve the effect of vacuuming the insulating cover cloth 111.

[0071] Please continue to refer to 2-6. Figure 15 The sealing structure includes a sealing strip 112, which is fixedly bonded to the outer edge of the insulating cover cloth 111. A protrusion is provided on the side of the sealing strip 112 close to the insulating cover cloth 111. The protrusion on the surface of the sealing strip 112 is pressed tightly against the surface of the insulating cover cloth 111. The sealing structure includes a sealing strip 113, which is fixedly bonded to the outer side of the sealing strip 112. A strip protrusion 114 is provided on the inner side of the sealing strip 113. The strip protrusions 114 are provided on both sides of the sealing strip 113 away from the cable. The strip protrusions 114 on both sides of the sealing strip 113 can be fitted together for sealing.

[0072] In the above embodiment, it should be noted that the sealing strip 113 and the sealing strip 112 are both made of insulating rubber material. During the sealing process, an insulating cover cloth clamp can be used for secondary fixation. The insulating cover cloth clamp is an existing tool well known to those skilled in the art.

[0073] After folding the insulating cover cloth 111 and covering it between the insulating buckle tubes 121 on both sides, the staff pinches the strip-shaped protrusions 114 on both sides of the sealing strip 113 to make them fit together and seal, and then uses the insulating cover cloth clamp to clamp the sealing strip 113 and the sealing strip 112 to fix them for a second time. In the clamped state, the protrusion on the surface of the sealing strip 112 presses tightly against the surface of the insulating cover cloth 111 to achieve the effect of sealing the edge of the folded part of the insulating cover cloth 111.

[0074] In summary, the working principle of the present invention is as follows:

[0075] A person skilled in the art installs the insulating buckle tube 121 on the cables on both sides of the insulating hanging rod, first holds the handle 132, and puts one end of the end tube 131 on the outer wall of the cable, then presses down the insulating buckle tube 121, so that the insulating buckle tube 121 is gradually buckled on the cable along the direction of the cable, and then covers the insulating cover cloth 111 between the insulating buckle tubes 121 on both sides, pinches the strip-shaped protrusions 114 on both sides of the sealing strip 113, so that they are fit together and sealed, and then uses the insulating cover cloth clamp to clamp the sealing strip 113 and the sealing strip 112 to fix them for the second time, and then rotates the first sliding bracket 141 and the second sliding bracket 151 to the lower side of the insulating buckle tube 121, slides the second sliding bracket 151 close to the side of the sealing insulating cover cloth 111, and inserts the sealing glue nozzle 19 into the gap on both sides of the sealing insulating cover cloth 111, and then pulls the lifting grip plate 181 upward to drive the insulating sealing plug 183 upward Slide and insert into the strip opening of the inner sleeve 124 and the insulating buckle tube 121, and at the same time, the sealing plug slider 184 at one end of the insulating sealing plug 183 slides out of the second slide groove 152. At this time, the support of the sealing plug slider 184 is lost between the first sliding bracket 141 and the second sliding bracket 151, and the spring 17 instantly pushes the first sliding bracket 141 close to the second sliding bracket 151, and at the same time, pushes the end of the insulating sealing plug 183 provided with the sealing plug slider 184 into the gap between the bottom strip opening of the insulating buckle tube 121 and the insulating cover cloth 111, and starts the motor 225 to drive the fan 224 to rotate, and draws the air in the insulating cover cloth 111 into the vacuum air pipe 20 through the vacuum air nozzle 21, and then discharges the air from the grid plate 222 through the air pump housing 221 until the insulating cover cloth 111 is in a vacuum state, so that the insulating cover cloth 11 is close to the hanging rod and the exposed cable surface.

[0076] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An insulation shielding device for 0.4kV low-voltage cable lines, characterized in that: include: A vacuum insulation shielding tube comprises an insulation buckle tube (121), wherein a strip opening is provided at the bottom of the insulation buckle tube (121), two insulation buckle tubes (121) are buckled and mounted on cables on both sides of an insulation hanging rod, an end tube (131) is fixedly mounted on one end of the insulation buckle tube (121) away from the insulation hanging rod, and a handle (132) is mounted on the top surface of the end tube (131); The sealing insulating cloth comprises an insulating cover cloth (111), wherein the insulating cover cloth (111) is covered between the insulating buckle tubes (121) on both sides, and the insulating cover cloth (111) is folded to cover the insulating surface of the cable on which the insulating hanging rod is hung and the end of the insulating buckle tube (121) away from the end tube (131); A sliding sealing device, the sliding sealing device being slidably mounted on the top surface of the insulating buckle tube (121), the sliding sealing device comprising a member for slidingly sealing a gap between the strip-shaped opening at the bottom of the insulating buckle tube (121) and the insulating cover cloth (111), the sliding sealing device being mounted with a vacuum pumping mechanism for extracting air from the folded portion of the insulating cover cloth (111); A sealing structure is installed at the edge of the insulating cover cloth (111), and the sealing structure is used to seal the edge of the folded portion of the insulating cover cloth (111).

2. The 0.4kV low-voltage cable line insulation shielding device according to claim 1, characterized in that: An inner sleeve (124) is fixedly mounted on the inner wall of the insulating buckle tube (121); The bottom of the inner sleeve (124) is provided with a strip opening, the inner wall of the inner sleeve (124) is tightly attached to the surface of the cable, the outer wall of the insulating buckle tube (121) is provided with two groups of C-shaped sliding grooves (122), and the outer wall of the insulating buckle tube (121) is further provided with two groups of strip sliding grooves (123), and the two groups of strip sliding grooves (123) are both passed through the two groups of C-shaped sliding grooves (122) and extend to one end of the insulating buckle tube (121) close to the insulating cover cloth (111).

3. The 0.4kV low-voltage cable line insulation shielding device according to claim 2, characterized in that: The sliding sealing device comprises a sliding rod (161), a first sliding bracket (141) and a second sliding bracket (151); The first sliding bracket (141) and the second sliding bracket (151) are spaced apart and slidably mounted on the surface of the insulating buckle tube (121); The sliding rod (161) is installed between the first sliding bracket (141) and the second sliding bracket (151), one end of the sliding rod (161) is fixedly connected to the upper end of the second sliding bracket (151), and the other end of the sliding rod (161) passes through the upper end of the first sliding bracket (141). The sliding rod (161) passes through one end of the first sliding bracket (141) and is fixedly installed with a limit block (162). A spring (17) is provided between the limit block (162) and the first sliding bracket (141), and the spring (17) is sleeved on the outer wall of the sliding rod (161).

4. The insulation shielding device for a 0.4kV low-voltage cable line according to claim 3, characterized in that: One end of the first sliding bracket (141) is in a C-shaped structure, and a first slider (143) is provided on the inner wall of the C-shaped structure of the first sliding bracket (141). The first slider (143) is slidably installed in the C-shaped slide groove (122) on the surface of the insulating buckle tube (121) away from the insulating cover cloth (111), and the first slide groove (142) is provided on the side of the first sliding bracket (141) close to the insulating cover cloth (111).

5. The 0.4kV low-voltage cable line insulation shielding device according to claim 4, characterized in that: One end of the second sliding bracket (151) is in a C-shaped structure, and a second slider (153) is provided on the inner wall of the C-shaped structure of the second sliding bracket (151). The second slider (153) is slidably installed in the C-shaped slide groove (122) on the surface of the insulating buckle tube (121) close to the insulating cover cloth (111), and a second slide groove (152) is provided on the side of the second sliding bracket (151) away from the insulating cover cloth (111).

6. The insulation shielding device for a 0.4kV low-voltage cable line according to claim 5, characterized in that: The sliding sealing device includes a lifting grip plate (181); The lifting grip plate (181) is arranged on a side of the slide rod (161) close to the insulating buckle tube (121), and an insulating sealing plug (183) is fixedly installed on a side of the lifting grip plate (181) away from the slide rod (161). The lifting grip plate (181) is provided with a grip plate slider (182) at one end close to the first sliding bracket (141), and the grip plate slider (182) is slidably installed in the first sliding groove (142). The insulating sealing plug (183) is provided with a sealing plug slider (184) at one end close to the second sliding bracket (151), and the sealing plug slider (184) is slidably installed in the second sliding groove (152).

7. The insulation shielding device for a 0.4kV low-voltage cable line according to claim 6, characterized in that: The vacuum pumping mechanism includes a sealing glue nozzle (19); The sealing glue nozzle (19) is fixedly mounted on a side of the second sliding bracket (151) close to the insulating cover cloth (111), and an air pump housing (221) is fixedly mounted on a side of the sliding rod (161) away from the lifting grip plate (181). One end of the air pump housing (221) is fixedly connected to a vacuum air pipe (20), and the vacuum air pipe (20) extends and is inserted into the inner side of the sealing glue nozzle (19).

8. The insulation shielding device for a 0.4kV low-voltage cable line according to claim 7, characterized in that: One end of the vacuum air pipe (20) inserted into the sealing glue nozzle (19) is equipped with a vacuum air nozzle (21); The surface of the vacuum air nozzle (21) is provided with a plurality of tiny air holes. The inner wall of the air pump housing (221) is provided with a plurality of annular brackets (223). A fan (224) is provided in the middle of the annular brackets (223). A motor (225) is fixedly provided in the center of the fan (224). A mesh plate (222) is provided at one end of the air pump housing (221) away from the vacuum air pipe (20).

9. The insulation shielding device for a 0.4kV low-voltage cable line according to claim 1, characterized in that: The sealing structure includes a sealing strip (112); The sealing strip (112) is fixedly bonded to the outer edge of the insulating cover cloth (111), and a protrusion is provided on the side of the sealing strip (112) close to the insulating cover cloth (111). The protrusion on the surface of the sealing strip (112) is pressed tightly against the surface of the insulating cover cloth (111).

10. The insulation shielding device for 0.4kV low-voltage cable lines according to claim 9, characterized in that: The sealing structure further includes a sealing strip (113); The sealing strip (113) is fixedly bonded to the outside of the sealing strip (112), and a strip-shaped protrusion (114) is provided on the inside of the sealing strip (113). The strip-shaped protrusion (114) is provided on both sides of the sealing strip (113) away from the cable, and the strip-shaped protrusions (114) on both sides of the sealing strip (113) can be engaged with each other for sealing.

Images