CN211930159U - Cable leading-up wire protective sleeve - Google Patents

Abstract

The utility model relates to the technical field of power tools, in particular to a cable leading-up wire protection sleeve, which comprises a vertical pipe made of hard insulating materials, wherein the bottom of the vertical pipe is fixedly connected with the ground and communicated with an underground cable trench, the top end of the vertical pipe is provided with a junction box, the junction box is fixedly connected and communicated with the top end of the vertical pipe in a sealing way, the junction box is of a detachable structure, a wiring board for leading-up wire cores and cable leading wires to be fixedly connected in a conducting way is further arranged in the junction box, the number of the wiring board corresponds to that of the leading-up wire cores, and a wiring hole for leading the cable leading wires into the; the utility model discloses cable is drawn line protective case can carry out effectual protection and fixed stay to drawing the line, and structural design is reasonable, the construction installation of being convenient for.

Description

Cable leading-up wire protective sleeve

Technical Field

The utility model relates to an electric power tool technical field specifically relates to a cable draws line protection sleeve.

Background

The cables are usually erected at high altitude in the power system, but some places cannot be erected at high altitude due to objective reasons, most of the cables penetrate through an underground cable trench and then penetrate out of the underground cable trench to be erected at high altitude, and the section of the cable between the high altitude erection and the underground cable trench is generally called an up-lead wire. At present, the lead-on line relatively lacks the protection, and the majority is directly exposed in external environment, and is impaired easily, and the lead-on line lacks the support fixed, and the dead weight of lead-on line can lead to lead-on line and high altitude to erect joint department and has born too big pulling force and damage easily, because the lead-on line lacks the protection moreover, leads to foreign matters such as animal, rainwater easily to get into underground cable ditch along the lead-on line and cause the damage to the cable in the underground cable ditch, brings the influence to the safe operation of cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that exists among the prior art, provide cable and draw line protective case, can carry out effectual protection and fixed stay to drawing the line, and structural design is reasonable, the construction installation of being convenient for.

The utility model discloses a following technical scheme realizes:

cable draws lead wire protective case, standpipe including the stereoplasm insulating material, the bottom fixed connection ground of standpipe and the underground cable ditch that communicates, the top of standpipe is equipped with the terminal box, terminal box and the sealed fixed connection in top of standpipe and intercommunication, the terminal box is detachable construction, still be equipped with in the terminal box and supply to draw line core and cable to lead the wiring board that line core and cable lead the line and carry out electrically conductive fixed connection, the quantity of wiring board is corresponding with the quantity that draws line core, still be equipped with on the terminal box and supply cable lead the line and get into the inside wiring hole of terminal box.

Preferably, be equipped with four in the terminal box the wiring board corresponds four sinle silks of three-phase four-wire's leading-in line respectively, and wherein the wiring board that corresponds the ground sinle silk of leading-in line still electrically conducts a connection earth connection, the earth connection is worn out and is equipped with a ground connection stake through the lower extreme of standpipe.

Preferably, the wiring box is also provided with an independent wire groove corresponding to each lead-in wire core and each cable lead-in wire, so that each wire core and each cable lead-in wire are insulated and isolated from other wire cores and cable lead-in wires.

Preferably, the wiring board is further provided with a wiring head, the wiring head extends out of the wiring box, and the wiring box is further provided with a protective cap used for sealing and insulating the protective wiring head.

Preferably, the standpipe is for closing formula structure, closes and fixed connection by two half shells and forms, and the both sides limit of two half shells is equipped with sand grip and slot that can embedded tight fit each other respectively to the involution face that makes two half shells is the folded surface.

Preferably, be equipped with at least one in the standpipe and be used for carrying out the fixture that supports fixedly to drawing the line, fixture includes fixed connection at the grip slipper of one of them half shell and carries out the grip block of dismantling the connection through the fastener with the grip slipper, the grip slipper with the position that the grip block was used for the cooperation centre gripping to draw the line is the concave arc structure that closes each other, and the surface of concave arc structure is equipped with soft insulating layer to make grip slipper and grip slipper can cooperate and press from both sides the line of drawing that tightly from here passed.

Preferably, the cable draws line protective sleeve still includes at least one side mount, and the side mount transversely sets up, and the side mount includes the link, and the one end of link is equipped with the first connection structure who is used for fixed connection standpipe, and the other end is equipped with the second connection structure who is used for the fixed connection stand.

Preferably, first connection structure is for holding tightly the first staple bolt of standpipe, second connection structure is for holding tightly the second staple bolt of stand, the second staple bolt is detachable to box-like staple bolt to can utilize with half limit of staple bolt that the link is connected carries out fixed connection with founding the wall as the base, the fastener of cooperation second staple bolt.

Preferably, the pipe wall of the vertical pipe is of a three-layer structure comprising an outer wall, a middle overhead layer and an inner wall.

Preferably, the lower end of the vertical pipe is fixedly connected with the ground through a pipe seat and communicated with an underground cable trench, the pipe seat is of an oppositely-combined structure encircling the vertical pipe, and the oppositely-combined structure of the pipe seat is connected through a fastening piece.

Compared with the prior art, the utility model discloses cable is drawn wire protective case's beneficial effect is: when the cable connector is used, the lead-in wire penetrates through the vertical pipe and is in conductive connection with a lead wire of a cable erected at high altitude in the junction box, the lead-in wire can be effectively protected through the vertical pipe, and the junction of the lead-in wire and the cable lead wire can be effectively protected through the junction box; the upper lead wire is fixedly supported by the clamping mechanism arranged in the vertical pipe, so that the tension borne by the upper lead wire and a high-altitude erection joint can be effectively reduced; the built-in grounding wire has a grounding function and can effectively protect the grounding wire; the junction box is provided with an exposed connector lug and a protective cap, so that other lead wires can be conveniently and quickly connected; the vertical pipe is fixedly connected with a vertical wall (such as a wall surface) or an upright post (such as a telegraph pole) through the side fixing frame, so that the stability of the whole structure can be improved; the vertical pipe is of an involutory structure, so that the vertical pipe can be conveniently and directly installed on the existing lead-up wire in an involutory manner without disassembling the lead-up wire, and the clamping mechanism is convenient to assemble and disassemble; the side edges of the two half shells of the vertical pipe are in embedded tight fit connection, so that the structural strength and the protective performance can be effectively improved, the creepage distance can be increased even if the insulating sheath of the lead-in wire is damaged and leaks electricity, and the joint surface of the vertical pipe is a folded surface, so that the injury to personnel or animals outside the vertical pipe is prevented; the pipe wall of standpipe adopts the three layer construction who has middle built on stilts layer, can increase standpipe structural strength and shock resistance, and through the air bed in the built on stilts layer, can increase protective barrel's insulating properties.

The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is a reference structure diagram of the use state of the cable leading-in wire protective sleeve in the embodiment;

fig. 2 is a schematic view of the internal structure of the junction box in the cable upper conductor protection sleeve of the present invention;

fig. 3 is the internal structure schematic diagram of the standpipe in the cable upper line protection sleeve of the present invention.

Wherein: the device comprises a vertical pipe 1, a side fixing frame 2, a connecting frame 21, a first hoop 22, a second hoop 23, a pipe seat 3, a junction box 4, a wiring board 41, a wire groove 42, a connector lug 43, a protective cap 44, a clamping mechanism 5, a clamping seat 51, a clamping plate 52, a lead wire 6, a wire core 61, a cable lead wire 7, a grounding wire 8 and a grounding pile 81.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the description of the specific embodiments is intended to be illustrative only and is not intended to be limiting.

As shown in fig. 1-3, cable is drawn to upper wire protective sleeve, standpipe 1 including the stereoplasm insulating material, and two side mount 2 that upper and lower interval set up, 3 fixed connection ground and intercommunication underground cable ditch are passed through to standpipe 1's bottom, standpipe 1's top is equipped with terminal box 4, terminal box 4 and standpipe 1's top seal fixed connection and intercommunication, terminal box 4 is to box-like structure, still be equipped with four sinle silk 61 that supply to draw wire 6 and cable lead wire 7 in the terminal box 4 and carry out electrically conductive fixed connection's wiring board 41, it is three-phase four-wire cable to draw wire 6, the quantity of wiring board 41 is corresponding with the quantity of sinle silk 61 that draws wire 6, still be equipped with four on the terminal box 4 and supply cable lead wire 7 to get into the inside wiring hole of terminal box 4, the wiring hole carries out sealing connection with cable lead wire 7's surface.

During the use, lead to the line 6 and pass standpipe 1 and erect the cable with the high altitude and be connected, can provide effective protection to lead to the line 6 through standpipe 1, can effectively protect the wiring department that leads to line 6 and cable lead to line 7 through terminal box 4.

The wiring board 41 corresponding to the ground core of the upper lead 6 is also electrically connected with a ground wire 8, and the ground wire 8 penetrates through the tube seat 3 and is provided with a ground pile 81 for grounding; built-in earth connection 8 makes the utility model discloses have the ground connection function simultaneously, can effectively protect earth connection 8 moreover.

The terminal box 4 is also provided with a separate wire groove 42 corresponding to each wire core 61 and cable lead 7 of the lead-up wire 6, so that each wire core 61 and cable lead 7 is insulated and isolated from other wire cores 61 and cable lead 7.

Each terminal block 41 is further provided with a column-shaped terminal 43, the terminal 43 extends from the terminal block 4, and the terminal block 4 is further provided with a protective cap 44 for sealing the insulation protective terminal 43. The junction box 4 is provided with an exposed connector lug 43 and a protective cap 44, which are convenient for fast connection with other lead wires.

The standpipe 1 is the involution formula structure, closes by two half shells and forms, and the both sides limit of two half shells is equipped with sand grip and slot that can embedded tight fit each other respectively to the involution face that makes two half shells is the folded surface. The vertical pipe 1 is of an involutive structure, so that the vertical pipe 1 can be conveniently and directly installed on the existing lead-up wire 6 in an involutive way without detaching the lead-up wire 6; the side of two half shells of standpipe 1 carries out embedded tight fit and connects to can effectively increase structural strength and barrier propterty, even lead to the damaged electric leakage of insulating crust of line 6, the joint face of standpipe 1 also can increase creepage distance for the folded surface, prevents to cause the injury to personnel or animal outside standpipe 1.

The tube socket 3 is the same for the involution formula structure, and embraces in the 1 hypomere outside of standpipe, increases standpipe 1's structural strength, and two half shells of tube socket 3 are connected through the fastener.

The pipe wall of the vertical pipe 1 is of a three-layer structure comprising an outer wall, a middle overhead layer and an inner wall. The pipe wall of standpipe 1 adopts the three layer construction who has middle built on stilts layer, can increase 1 structural strength of standpipe and shock resistance, and through the air bed in the built on stilts layer, can increase protective barrel's insulating properties.

A plurality of clamping mechanisms 5 for supporting and fixing the lead-up wires 6 are arranged in the vertical pipe 1 at intervals up and down, each clamping mechanism 5 comprises a clamping seat 51 fixedly connected to one of the half shells and a clamping plate 52 detachably connected with the clamping seat 51 through a fastener, and therefore the clamping plate 52 and the clamping seat 51 can be matched and clamped with the lead-up wires 6 passing through the clamping seat. The clamping seat 51 and the clamping plate 52 are concave arc structures which are mutually matched and used for clamping the lead-up wire 6, and rubber or sponge is arranged on the surfaces of the concave arc structures. The clamping mechanism 5 arranged in the vertical pipe 1 is used for protectively and fixedly supporting the lead-in wire 6, so that the tensile force borne by the wiring position of the lead-in wire 6 can be effectively reduced.

Side mount 2 transversely sets up, and side mount 2 includes link 21, and the one end of link 21 is equipped with the first staple bolt 22 that is used for fixed connection standpipe 1, and the other end is equipped with the second staple bolt 23 that is used for the fixed connection wire pole, and second staple bolt 23 is the detachable to box-like staple bolt to can utilize the staple bolt half limit of being connected with link 21 as the base, cooperate the fastener of second staple bolt 23 to carry out fixed connection with the wall. The vertical pipe 1 is fixedly connected with a vertical wall (such as a wall surface) or a vertical column (such as a telegraph pole) through the side fixing frame 2, so that the stability of the whole structure can be improved.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of protection covered by the present application is not limited to the embodiments with a specific combination of the features described above, but also covers other embodiments with any combination of the features described above or their equivalents without departing from the scope of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. Cable draws lead wire protective case, a serial communication port, including the standpipe of stereoplasm insulating material, the bottom fixed connection ground of standpipe and the underground cable ditch that communicates, the top of standpipe is equipped with the terminal box, the terminal box is with the sealed fixed connection in top of standpipe and intercommunication, the terminal box is detachable construction, still be equipped with in the terminal box and supply to draw line core and cable to lead the wiring board that line core and cable lead the line and carry out electrically conductive fixed connection, the quantity of wiring board is corresponding with the quantity that draws line core, still be equipped with on the terminal box and supply cable lead the line and get into the inside wiring hole of terminal box.

2. The cable leading-up wire protection sleeve according to claim 1, wherein four wiring boards are arranged in the terminal box, and respectively correspond to four cores of a three-phase four-wire leading-up wire, wherein the wiring board corresponding to the ground core of the leading-up wire is further conductively connected with a ground wire, and the ground wire penetrates through the lower end of the vertical tube and is provided with a ground pile.

3. The cable lead-up wire protection sleeve according to claim 1, wherein a separate wire groove is further provided in the junction box corresponding to each lead-up wire core and cable lead-up wire, so that each wire core and cable lead-up wire is insulated and isolated from other wire cores and cable lead-up wires.

4. A cable entry protective sleeve according to claim 1 wherein said terminal block is further provided with a terminal lug extending from said terminal block, said terminal block further being provided with a protective cap for sealing said terminal lug.

5. The cable upcomer protective sleeve according to claim 1, wherein the vertical tube has an involutory structure and is formed by involutory and fixed connection of two half-shells, and the two side edges of the two half-shells are respectively provided with a protruding strip and a slot which can be embedded into each other and tightly fit, so that the involutory surfaces of the two half-shells are folded surfaces.

6. The cable leading-up wire protection sleeve according to claim 5, wherein at least one clamping mechanism for supporting and fixing the leading-up wire is arranged in the vertical tube, the clamping mechanism comprises a clamping seat fixedly connected to one of the half shells and a clamping plate detachably connected with the clamping seat through a fastener, the clamping seat and the clamping plate are of concave arc structures which are mutually matched and used for clamping the leading-up wire, and a soft insulating layer is arranged on the surface of each concave arc structure, so that the clamping plate and the clamping seat can be matched and clamped with the leading-up wire which passes through the concave arc structures.

7. The cable entry protective sleeve of claim 1 further comprising at least one side mount, the side mount being laterally disposed, the side mount comprising a connector, one end of the connector having a first connecting structure for fixedly connecting to a riser and the other end having a second connecting structure for fixedly connecting to a post.

8. The cable entry protective sleeve according to claim 7, wherein the first connecting structure is a first hoop capable of tightly holding the vertical tube, the second connecting structure is a second hoop capable of tightly holding the vertical column, and the second hoop is a detachable butt-jointed hoop, so that the half of the hoop connected to the connecting frame can be used as a base to be fixedly connected to the vertical wall by a fastener of the second hoop.

9. The cable entry protective sleeve of claim 1 wherein the wall of the standpipe is a triple-layered structure including an outer wall, an intermediate elevated layer, and an inner wall.

10. The cable entry protective sleeve of claim 1, wherein the lower end of the vertical tube is fixedly connected to the ground and communicates with the underground cable trench through a tube seat, the tube seat is of an interlocking structure surrounding the vertical tube, and the interlocking structure of the tube seat is connected through a fastener.

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