CN209016675U - A kind of double back cable terminal pole of 110 kilovolts of pedestal cable terminals - Google Patents

Abstract

The utility model discloses a kind of double back cable terminal poles of 110 kilovolts of pedestal cable terminals, including cable terminal and cable terminal pole, cable terminal is mounted on cable terminal pole, cable terminal pole includes first terminal bar and second terminal bar, passageway is provided between first terminal bar and second terminal bar, 110 kv cable all the way is respectively connected on first terminal bar and second terminal bar respectively, line concentration cross-arm and assembly cross-arm are provided on first terminal bar and second terminal bar, the truncation surface of first terminal bar and second terminal bar is in polygon, line concentration cross-arm and assembly cross-arm are fixedly connected in fixing seat and are fixedly connected on first terminal bar or second terminal bar by the fixing seat of polygon, assembly cross-arm is far from being fixedly connected with assembling slice on one end of fixing seat, assembling slice is L-shaped, this is practical It is novel can be convenient route O&M service personnel step on bar and reduce climbing number so that alleviate because lamp stand difficulty brings safety problem.

Description

A kind of double back cable terminal pole of 110 kilovolts of pedestal cable terminals

Technical field

The utility model relates to field of electrical equipment, more particularly to a kind of 110 kilovolts of pedestal cable terminations The double back cable terminal pole of head.

Background technique

Before 2017, Zhejiang power grid largely uses dry-type cable terminal.Therefore, existing 110 kv cable terminal Bar is largely to meet dry-type cable terminal installation and operation and design, and is pacified to 110 kilovolts of pedestal cable terminals are suitable for The research, design and operating experience for shipping the cable terminal pole of row are less, existing to be suitable for 110 kilovolts of pedestal cable terminations Cable terminal pole exist due to being single pole design, therefore 2 circuit, 110 kv cable is distributed on shaft, route O&M service personnel It is very difficult to step on bar maintenance, while also machine to route O&M service personnel brings safety problem.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind, and route O&M can be facilitated to examine The personnel of repairing step on bar and reduce climbing number and then alleviate because lamp stand difficulty brings 110 kilovolts of pedestal cables of safety problem whole The double back cable terminal pole of end.

To achieve the above object, the utility model provides following technical solution: a kind of 110 kilovolts of pedestal cable terminations The double back cable terminal pole of head, including cable terminal and cable terminal pole, the cable terminal are mounted on cable termination On bar, the cable terminal pole includes first terminal bar and second terminal bar, between the first terminal bar and second terminal bar It is provided with passageway, respectively connects 110 kv cable all the way on the first terminal bar and second terminal bar respectively, described first eventually It is provided with cross-arm in side pole and second terminal bar, the cross-arm includes line concentration cross-arm for clamping cable and for installing electricity The truncation surface of the assembly cross-arm of cable terminals, the first terminal bar and second terminal bar is in multilateral shape, and described first eventually The fixing seat respectively with the truncation surface correspondingly-shaped of first terminal bar and second terminal bar is additionally provided in side pole and second terminal bar, The line concentration cross-arm and assembly cross-arm be fixedly connected in fixing seat and by fixing seat be fixedly connected on first terminal bar or On second terminal bar, the assembly cross-arm is in " L " far from assembling slice, the assembling slice is fixedly connected on one end of fixing seat Shape, assembling slice are fitted on assembly end face of the cross-arm far from fixing seat one end and on upper side, and by screw by its with it is solid The end face of reservation and upper side are fixed, and are provided on the line concentration cross-arm for cable to be fastened on line concentration cross-arm Hasp.

As a further improvement of the utility model, close to the position on ground on the first terminal bar and second terminal bar It is respectively arranged with the first breaker and the second breaker, 110 kv cables on the first terminal bar are linked into the first open circuit It is exported after device, 110 kv cables on the second terminal bar export after being linked into the second breaker, on the first terminal bar It is provided with wiring cabinet, the wiring cabinet includes cabinet body and mounting rack, and first breaker is mounted on mounting rack, the cabinet body On offer threading hole, be also fixedly connected on the cabinet body surround threading hole enter line elbow, it is described enter line elbow in set It is equipped with seal assembly, 110 kv cables on the first terminal bar enter in cabinet body after passing through seal assembly and first is disconnected The connection of road device.

The seal assembly includes drive ring, linkage mechanism and six sealings as a further improvement of the utility model, Piece, the drive ring are rotatably connected on the other end into line elbow with respect to cabinet body, and the drive ring passes through linkage mechanism driving six A diaphragm seal, which is mutually drawn close, to be sealed or is located remotely from each other；

The linkage mechanism include the first sliding block, the second sliding block, it is described enter line elbow truncation surface on open up there are six with Enter the guide groove of the coaxial rounded array distribution of line elbow, the sliding slot of regular hexagon, the driving are offered on the drive ring Ring is rotatably connected on line elbow with respect on the other end of cabinet body, and its sliding slot is corresponding with the position of guide groove, works as driving When ring is rotatably connected on line elbow, guide groove and sliding slot form an acute angle, first sliding block and the second sliding block point It is not fixedly connected on the two sides that diaphragm seal is away from each other, first sliding block is slidably connected in guide groove, and described second is sliding Block is slidably connected in sliding slot, and the diaphragm seal has the intermediate plate of rectangular a connection sheet and equilateral triangle, wherein first is sliding Block and the second sliding block are located in connection sheet, and the intermediate plate of each diaphragm seal is bonded forms sealing structure two-by-two, when drive ring rotation, Second sliding block slides in sliding slot, while sliding in guide groove, and intermediate plate is driven rotation and two sides of adjacent intermediate plate are begun It is bonded to each other eventually, when intermediate plate rotates, each diaphragm seal is bonded two-by-two and forms regular hexagon through-hole among it.

The passageway includes handrail, support frame and pedal as a further improvement of the utility model, support frame as described above One end is fixedly connected on first terminal bar, and the other end is fixedly connected on second terminal bar, and one end of the handrail is fixed to be connected It connects on first terminal bar, the other end is fixedly connected on second terminal bar, holds for manpower forward, and the pedal is fixedly connected On the support frame, it is offered on the pedal and vacates water hole more, anti-skid chequer, the two sides of the pedal are additionally provided on the pedal Multiple baffles are additionally provided with, the baffle interval is distributed in the two sides of pedal and is fixedly connected with pedal.

The interval between the baffle is no more than 225 millimeters as a further improvement of the utility model,.

The support frame uses Yan frame structure as a further improvement of the utility model,.

The beneficial effects of the utility model are provided with first terminal bar and second terminal bar, have two root termination bars in this way Distribution cable is carried out, wherein can alleviate route O&M service personnel to avoid two-way cable is distributed on a root termination bar and step on The phenomenon of bar difficulty, while passageway is provided between first terminal bar and second terminal bar, setting passageway can be such that route transports Dimension service personnel is moved between first terminal bar and second terminal bar by passageway, and climbing can be thus reduced Number increases safety, is provided with line concentration cross-arm and assembly cross-arm and fixing seat, wherein first terminal bar and second terminal bar Truncation surface be in multilateral shape, in this way compared to be provided directly as it is circular more save material, while multilateral shape is with multiple Salient angle, the salient angle part can be used as reinforcing rib use, have stronger intensity compared to circular terminal pole is provided directly as just, And the fixing seat being arranged is corresponding with the shape of its truncation surface, and such fixing seat is fixed on first terminal bar and second terminal bar It was just more bonded its surface when upper, not can rotate, the direction after fixing it is more firm, due to double back cable terminal pole It is generally arranged at the assembling slice for wherein assembling by road and being provided with L shape on crosspiece, and crosspiece by it and is assembled by screw End face and upper side be fixed, it can be fixed in machine and transverse direction in this way, make its fix it is more firm It leans on, regardless of when horizontal vibrating or vertical vibration occurs, the fixed function in both direction can alleviate vibration, The assembling slice integrated with cable terminal can produce, and thus alleviate the vibration on ground when the vehicle passes by cable end The influence that end causes fastening to loosen interlocks line concentration cross-arm and assembly cross-arm on first terminal bar and second terminal bar It arranges, the cable connected on the cable terminal on upper in this way one layer of assembly cross-arm passes through next layer after naturally drooping Hasp on line concentration cross-arm is buckled on line concentration cross-arm, is avoided strong wind from causing excessive pulling force when blowing to cable, is led to electricity Cable disorderly shakes in the sky, or even disconnects and generate safety problem, can also arrange to cable, cable is avoided to cause route to be transported in a jumble Service personnel's lamp stand difficulty is tieed up, the safety problem of route O&M service personnel's lamp stand is increased.

Detailed description of the invention

Fig. 1 is the overall appearance structural representation of the utility model；

Fig. 2 is the seal assembly sealing state structural schematic diagram of the utility model；

Fig. 3 is the seal assembly open state structural schematic diagram of the utility model；

Fig. 4 is the fixed seat structure schematic diagram of the utility model；

Fig. 5 is the wiring cabinet schematic diagram of internal structure of the utility model；

Fig. 6 is the passageway structural schematic diagram of the utility model；

Fig. 7 is the pedal structure schematic diagram of the utility model；

Fig. 8 is the seal assembly partial structure diagram of the utility model.

Drawing reference numeral: 11, first terminal bar；12, second terminal bar；2, passageway；21, handrail；22, support frame；23, it steps on Plate；231, apopore；232, anti-skid chequer；233, baffle；31, line concentration cross-arm；32, cross-arm is assembled；4, fixing seat；51, assembling slice； 52, hasp；6, wiring cabinet；61, cabinet body；62, mounting rack；63, the first breaker；64, threading hole；65, enter line elbow；7, it seals Component；71, drive ring；72, diaphragm seal；721, connection sheet；722, intermediate plate；73, the first sliding block；74, the second sliding block；751, it is oriented to Slot；76, sliding slot.

Specific embodiment

The utility model is described in further detail below in conjunction with embodiment given by attached drawing.

Shown in 8, the double back cable termination of 110 kilovolts of pedestal cable terminals of one kind of the present embodiment Bar, including cable terminal and cable terminal pole, the cable terminal are mounted on cable terminal pole, the cable terminal pole Including first terminal bar 11 and second terminal bar 12, it is provided with passageway 2 between the first terminal bar 11 and second terminal bar 12, 110 kv cable all the way, the first terminal bar 11 are respectively connected on the first terminal bar 11 and second terminal bar 12 respectively Be provided with cross-arm on second terminal bar 12, the cross-arm includes line concentration cross-arm 31 for clamping cable and for installing electricity The truncation surface of the assembly cross-arm 32 of cable terminals, the first terminal bar 11 and second terminal bar 12 is in multilateral shape, described The truncation surface pair with first terminal bar 11 and second terminal bar 12 respectively is additionally provided on first terminal bar 11 and second terminal bar 12 The fixing seat 4 of shape is answered, the line concentration cross-arm 31 and assembly cross-arm 32 are fixedly connected in fixing seat 4 and by fixing seat 4 It is fixedly connected on first terminal bar 11 or second terminal bar 12, it is fixed on the described assembly one end of cross-arm 32 far from fixing seat 4 It is connected with assembling slice 51, the assembling slice 51 is L-shaped, and assembling slice 51 is fitted in assembly cross-arm 32 far from 4 one end of fixing seat On end face and on upper side, and it is fixed with the end face of fixing seat 4 and upper side by screw, the line concentration is horizontal The hasp 52 for being fastened on cable on line concentration cross-arm 31 is provided in load 31.

Through the above technical solutions, being provided with first terminal bar 11 and second terminal bar 12, there are two root termination bars in this way Distribution cable is carried out, wherein can alleviate route O&M service personnel to avoid two-way cable is distributed on a root termination bar and step on The phenomenon of bar difficulty, while passageway 2, route O&M service personnel are provided between first terminal bar 11 and second terminal bar 12 In maintenance issue, it is often necessary to be climbed on two root termination bars back and forth, the number of climbing is more, the probability of safety problem occurs Bigger, setting passageway 2 can be such that route O&M service personnel passed through between first terminal bar 11 and second terminal bar 12 Road 2 is moved, and the number of climbing can be thus reduced, and increases safety, is provided with line concentration cross-arm 31 and assembly cross-arm 32 and fixing seat 4, wherein the truncation surface of first terminal bar 11 and second terminal bar 12 is in multilateral shape, compares directly set in this way It is set to circular more saving material, while multilateral shape has multiple salient angles, which can be used as reinforcing rib use, The shape of the fixing seat 4 and its truncation surface that there is stronger intensity, and be arranged compared to circular terminal pole is provided directly as just Corresponding, such fixing seat 4 is just more bonded its surface when being fixed on first terminal bar 11 and second terminal bar 12, will not Rotation, the direction after fixing it is more firm, since double back cable terminal pole is generally arranged at by road, some road warps The cart for often having load-carrying big passes through, and is easy for generating vibration, impact to the installation tightness of cable terminal, wherein assembling It is provided with the assembling slice 51 of L shape on crosspiece, and is consolidated it with the end face of assembly crosspiece and upper side by screw It is fixed, it can be fixed in machine and transverse direction in this way, fix it more firm, regardless of occur horizontal vibrating or It is that fixed function when shaking vertically, in both direction can alleviate vibration, which can be with cable end Integration production in end thus alleviates the shadow that the vibration on ground when the vehicle passes by causes fastening to loosen cable terminal Ring, on first terminal bar 11 and second terminal bar 12 by line concentration cross-arm 31 and assembly cross-arm 32 carry out it is staggered, in this way on The cable connected on cable terminal on one layer of assembly cross-arm 32 passes through next layer of line concentration cross-arm after naturally drooping Hasp 52 on 31 is buckled on line concentration cross-arm 31, is avoided strong wind from causing excessive pulling force when blowing to cable, is led to cable It disorderly shakes in the sky, or even disconnects and generate safety problem, cable can also be arranged, avoiding cable in a jumble leads to route O&M Service personnel's lamp stand is difficult, increases the safety problem of route O&M service personnel's lamp stand.

As a kind of improved specific embodiment, close to ground on the first terminal bar 11 and second terminal bar 12 Position is respectively arranged with the first breaker 63 and the second breaker, and 110 kv cables on the first terminal bar 11 are linked into It is exported after first breaker 63,110 kv cables on the second terminal bar 12 export after being linked into the second breaker, described Wiring cabinet 6 is provided on first terminal bar 11, the wiring cabinet 6 includes cabinet body 61 and mounting rack 62, first breaker 63 It is mounted on mounting rack 62, threading hole 64 is offered on the cabinet body 61, is also fixedly connected on the cabinet body 61 and surrounds threading Hole 64 enters line elbow 65, it is described enter line elbow 65 in be provided with seal assembly 7,110,000 on the first terminal bar 11 Luff cable is entered in cabinet body 61 after seal assembly 7 and is connect with the first breaker 63.

Through the above technical solutions, the wiring cabinet 6 being arranged to pair can meet the control requirement in two circuits, by first Cable on terminal pole 11 and second terminal bar 12 be each passed through respectively be arranged enter line elbow 65 and threading hole 64 after enter In cabinet body 61, respectively in two cabinet bodies 61 the first breaker 63 and the second breaker inlet wire connect, it is then disconnected by first It is guided in outgoing cable by another group of outlet hole for being used for outlet of setting and outlet elbow after road device 63 and the second breaker Cable stretches out cabinet body 61, and wherein outlet elbow is identical with 65 structure of line elbow is entered, and serves the same role, and seals cabinet body 61, keeps away Exempting from 61 inside humidity of cabinet body leads to the first breaker 63 or the second breaker operation irregularity, and passes through the first breaker of setting 63 and second breaker facilitate route O&M service personnel to power off when overhauling to route to route, and be arranged two A breaker can be had a power failure in this way in maintenance with one, circuit circuit, small to the pressure of grid power blackout in this way, to residence The influence of the people also reduces.

As a kind of improved specific embodiment, the seal assembly 7 includes that drive ring 71, linkage mechanism and six are close Mounting 72, the drive ring 71 are rotatably connected on the other end into line elbow 65 with respect to cabinet body 61, and the drive ring 71 passes through connection Motivation structure drives six diaphragm seals 72 mutually to draw close and is sealed or is located remotely from each other；The linkage mechanism includes the first sliding block 73, the second sliding block 74, it is described enter line elbow 65 truncation surface on open up there are six with enter the coaxial rounded array of line elbow 65 divide The guide groove 751 of cloth, the sliding slot 76 of regular hexagon is offered on the drive ring 71, and the drive ring 71 is rotatably connected on into line On the other end on elbow 65 with respect to cabinet body 61, and its sliding slot 76 is corresponding with the position of guide groove 751, when drive ring 71 rotates When being connected on line elbow 65, guide groove 751 and sliding slot 76 form an acute angle, first sliding block 73 and the second sliding block 74 are respectively fixedly connected on the two sides that diaphragm seal 72 is away from each other, and first sliding block 73 is slidably connected in guide groove 751, Second sliding block 74 is slidably connected in sliding slot 76, and the diaphragm seal 72 has rectangular a connection sheet 721 and equilateral triangle The intermediate plate 722 of shape, wherein the first sliding block 73 and the second sliding block 74 are located in connection sheet 721,722 liang of the intermediate plate of each diaphragm seal 72 Two fittings form sealing structure, and when drive ring 71 rotates, the second sliding block 74 slides in sliding slot 76, while in guide groove 751 Interior sliding, intermediate plate 722 is driven rotation and two sides of adjacent intermediate plate 722 are bonded to each other always, when intermediate plate 722 rotates, often A diaphragm seal 72 is bonded two-by-two and forms regular hexagon through-hole among it.

Through the above technical solutions, when cable is needed across drive ring 71, it can be with rotate driving ring 71, with drive ring 71 rotations, sliding slot 76 also can rotate, at this time due to having an angle between sliding slot 76 and guide groove 751, and with sliding slot 76 rotation gradually becomes smaller, and when sliding slot 76 rotates, the second internal sliding block 74 can be pushed out since the angle becomes smaller, the Two sliding blocks 74 will slide in sliding slot 76, so that the first sliding block 73 can slide in guide groove 751, along guide groove 751 Length direction is slided, since the movement of the second sliding block 74 and the first sliding block 73 will drive the entire movement of diaphragm seal 72, still Sealing structure is formed since each diaphragm seal 72 is bonded two-by-two, and the first sliding block 73 and the second sliding block on each diaphragm seal 72 74 no longer can be just sealing structure when each diaphragm seal 72 is bonded two-by-two at this time simultaneously with each 72 synchronizing moving of diaphragm seal, Will form a through-hole, at this time can by cable pass through the through-hole, then by enter line elbow 65 enter in cabinet body 61 with After first breaker 63 or the connection of the second breaker, rotated backward by drive ring 71, so that it may the through-hole is reduced, into And clamp cable, due to the surface of cable be it is r c, there is certain elasticity, by drive ring 71 and entering line elbow Setting sealing ring and damping fin or pawl and the locking mechanism of ratchet cooperation can be formed diaphragm seal 72 logical between 65 Firmly clamping cable after hole reduces, and then external steam is avoided to enter in cabinet body 61.

As a kind of improved specific embodiment, the passageway 2 includes handrail 21, support frame 22 and pedal 23, described One end of support frame 22 is fixedly connected on first terminal bar 11, and the other end is fixedly connected on second terminal bar 12, described to help One end of hand 21 is fixedly connected on first terminal bar 11, and the other end is fixedly connected on second terminal bar 12, is held for manpower It moves ahead, the pedal 23 is fixedly connected on support frame 22, is offered on the pedal 23 and is vacated water hole 231, the pedal more Anti-skid chequer 232 is additionally provided on 23, the two sides of the pedal 23 are additionally provided with multiple baffles 233, and the baffle 233 is spaced apart Pedal 23 two sides and be fixedly connected with pedal 23.

Through the above technical solutions, when O&M service personnel service personnel needs in first terminal bar 11 and second terminal bar When being moved between 12, hand steered firmly handrail 21 can be used, another terminal pole is then reached by pedal 23 step by step, wherein There are baffle 233 in the two sides of pedal 23, prevent O&M service personnel from skidding off after sole skids when moving, increase safety, simultaneously Multiple apopores 231 are offered on pedal 23, can be led to portion by exposing to the weather in the long-term use to avoid pedal 23 The phenomenon that quartile sets raised or sunken and ponding, also be easy to cause skidding in the case where ponding, and there are also anti-on pedal 23 Sliding line 232 further increases friction, avoids skidding, and further increases safety, and anti-skid chequer 232 can use various shapes, And its principle and construction are all more existing, just do not do excessive detailed annotation herein.

As a kind of improved specific embodiment, the interval between the baffle 233 is no more than 225 millimeters.

Through the above technical solutions, since O&M service personnel is generally male, but it is also not excluded for women, general women Foot it is long be greater than 35 yards, i.e., 225 millimeters, the interval being then arranged between baffle 233 is no more than 225 millimeters, can be to adult Women and male play a protective role, while for baffle 233 corresponding with pedal 23 compared to setting monolith length, can save Material, also increases the effect of leak, and the rainy day ponding for being is more difficult.

As a kind of improved specific embodiment, the support frame 22 uses Yan frame structure.

Through the above technical solutions, the structure of Yan frame has very high intensity, while also can be good at saving material, and And there is very strong ventilative shape, thus excessive bear will not be caused to first terminal bar 11 and second terminal bar 12 under strong wind Load, and can connect first terminal bar 11 and second terminal bar 12, and support, it can mutually keep the same Distance, will not cause because of a variety of causes in long-term use process its mutually draw close or be located remotely from each other inclination and cause Cable disconnects.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (6)

1. a kind of double back cable terminal pole of 110 kilovolts of pedestal cable terminals, including cable terminal and cable termination Bar, the cable terminal are mounted on cable terminal pole, which is characterized in that the cable terminal pole includes first terminal bar (11) and second terminal bar (12) it, is provided with passageway (2) between the first terminal bar (11) and second terminal bar (12), it is described 110 kv cable all the way, the first terminal bar are respectively connected on first terminal bar (11) and second terminal bar (12) respectively (11) and on second terminal bar (12) it is provided with cross-arm, the cross-arm includes the line concentration cross-arm (31) and use for clamping cable In the assembly cross-arm (32) of installation cable terminal, the truncation surface of the first terminal bar (11) and second terminal bar (12) is in Multilateral shape, be additionally provided on the first terminal bar (11) and second terminal bar (12) respectively with first terminal bar (11) and second The fixing seat (4) of the truncation surface correspondingly-shaped of terminal pole (12), the line concentration cross-arm (31) and assembly cross-arm (32) are fixed to be connected It connects on fixing seat (4) and is fixedly connected on first terminal bar (11) or second terminal bar (12) by fixing seat (4), it is described Far from being fixedly connected with assembling slice (51) on the one end of fixing seat (4), the assembling slice (51) is L-shaped for assembly cross-arm (32), Assembling slice (51) is fitted on the end face of separate fixing seat (4) one end of assembly cross-arm (32) and on upper side, and passes through screw It is fixed with the end face of fixing seat (4) and upper side, is provided on the line concentration cross-arm (31) for by cable grip Close the hasp (52) on line concentration cross-arm (31).

2. the double back cable terminal pole of 110 kilovolts of pedestal cable terminals according to claim 1, feature exist In the position on the first terminal bar (11) and second terminal bar (12) close to ground is respectively arranged with the first breaker (63) With the second breaker, 110 kv cables on the first terminal bar (11) are linked into the first breaker (63) and export afterwards, described 110 kv cables on second terminal bar (12) export after being linked into the second breaker, are arranged on the first terminal bar (11) Have wiring cabinet (6), the wiring cabinet (6) includes cabinet body (61) and mounting rack (62), and first breaker (63) is mounted on It shelves on (62), is offered threading hole (64) on the cabinet body (61), be also fixedly connected on the cabinet body (61) and surround threading Hole (64) enters line elbow (65), it is described enter line elbow (65) in be provided with seal assembly (7), the first terminal bar (11) On 110 kv cables pass through to enter in cabinet body (61) after seal assembly (7) and connect with the first breaker (63).

3. the double back cable terminal pole of 110 kilovolts of pedestal cable terminals according to claim 2, feature exist In the seal assembly (7) includes drive ring (71), linkage mechanism and six diaphragm seals (72), drive ring (71) rotation It is connected to the other end into line elbow (65) with respect to cabinet body (61), the drive ring (71) drives six sealings by linkage mechanism Piece (72), which is mutually drawn close, to be sealed or is located remotely from each other；

The linkage mechanism include the first sliding block (73), the second sliding block (74), it is described enter line elbow (65) truncation surface on open up There are six with the guide groove (751) that enters the coaxial rounded array distribution of line elbow (65), offer just on the drive ring (71) The sliding slot (76) of hexagon, the drive ring (71) are rotatably connected on the other end on line elbow (65) with respect to cabinet body (61) On, and its sliding slot (76) is corresponding with the position of guide groove (751), when drive ring (71) is rotatably connected on line elbow (65) When, guide groove (751) and sliding slot (76) form an acute angle, and first sliding block (73) and the second sliding block (74) are fixed respectively It is connected on the two sides that diaphragm seal (72) is away from each other, first sliding block (73) is slidably connected in guide groove (751), described Second sliding block (74) is slidably connected in sliding slot (76), and the diaphragm seal (72) has a rectangular connection sheet (721) and equilateral The intermediate plate (722) of triangle, wherein the first sliding block (73) and the second sliding block (74) are located on connection sheet (721), each diaphragm seal (72) intermediate plate (722) is bonded forms sealing structure two-by-two, and when drive ring (71) rotation, the second sliding block (74) is in sliding slot (76) Interior sliding, while the sliding in guide groove (751), intermediate plate (722) is driven rotation and two sides of adjacent intermediate plate (722) are begun It is bonded to each other eventually, when intermediate plate (722) rotates, each diaphragm seal (72) is bonded two-by-two and forms regular hexagon through-hole among it.

4. the double back cable terminal pole of 110 kilovolts of pedestal cable terminals according to claim 1 or 2 or 3, special Sign is that the passageway (2) includes handrail (21), support frame (22) and pedal (23), and one end of support frame as described above (22) is fixed It is connected on first terminal bar (11), the other end is fixedly connected on second terminal bar (12), and one end of the handrail (21) is solid Surely be connected on first terminal bar (11), the other end is fixedly connected on second terminal bar (12), held for manpower it is forward, it is described Pedal (23) is fixedly connected on support frame (22), is offered on the pedal (23) and is vacated water hole (231), the pedal more (23) it is additionally provided on anti-skid chequer (232), the two sides of the pedal (23) are additionally provided with multiple baffles (233), the baffle (233) two sides of pedal (23) are distributed in and are fixedly connected with pedal (23).

5. the double back cable terminal pole of 110 kilovolts of pedestal cable terminals according to claim 4, feature exist In the interval between the baffle (233) is no more than 225 millimeters.

6. the double back cable terminal pole of 110 kilovolts of pedestal cable terminals according to claim 5, feature exist In the support frame (22) uses Yan frame structure.