CN114156780A

CN114156780A - Connecting device for in-out operation of strain insulator string of ultra-high voltage transmission line

Info

Publication number: CN114156780A
Application number: CN202111512188.4A
Authority: CN
Inventors: 周宗飞; 钱君
Original assignee: Individual
Current assignee: Shengzhou City Guangyu Industry Co ltd; State Grid Zhejiang Electric Power Co Ltd Shengzhou Power Supply Co
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-03-08
Anticipated expiration: 2041-12-07
Also published as: CN114156780B

Abstract

The invention discloses a connecting device for the in-and-out operation of a strain insulator string of an ultra-high voltage transmission line, and belongs to the technical field of insulators. The utility model provides an ultra-high voltage transmission line strain insulator string business turn over operation connecting device, which comprises a fixed base, it is connected with two push rods through the round pin axle rotation to lead to the groove middle part and is left right structure, the push rod upper end is diamond-shaped structure and rotates through the round pin axle and be connected with a plurality of connecting rods, fixing base upside left end intermediate position is equipped with the insulator post, insulator post circumference outer wall is linear equidistant and is equipped with a plurality of insulator bodies, the pot head is equipped with the cavity push pedal under the insulator post, the inseparable cooperation between the structure, make the device when dismantling the installation to the insulator body, can make the connecting rod upwards push away the insulator body through the cavity push pedal through telescopic link B, make it can be taken down in proper order, the higher unable condition of taking down in proper order of fixed column has been avoided, the condition that the insulator body can not broken by the tumble in the installation simultaneously has been protected, the efficiency is improved, and the installation quality is guaranteed.

Description

Connecting device for in-out operation of strain insulator string of ultra-high voltage transmission line

Technical Field

The invention relates to the technical field of insulators, in particular to a connecting device for the in-and-out operation of a strain insulator string of an ultra-high voltage transmission line.

Background

The strain insulator string is an important element in the process of erecting the power transmission line, mainly comprises a ceramic strain insulator string and a composite strain insulator string, and can effectively isolate an electrified lead from the ground and keep each electric wire at the position of the strain insulator string.

The document with the prior art publication number of CN210297073U provides an extra-high voltage transmission line insulator string in-out operation connecting device, and the device ensures the stability of a T-shaped frame under the action of an installation lantern ring and a fixed base by sleeving the installation lantern ring on a strain insulator string and installing the fixed base on a connecting fitting of the strain insulator string by a novel method, so that a worker can walk on the T-shaped frame stably;

the device comprises a flexible body, a first connecting head, a second connecting head and a tightener, wherein the flexible body comprises a first strip-shaped part and a second strip-shaped part which are the same in length, and the tail ends of the two first strip-shaped parts and the tail ends of the second strip-shaped parts are connected in a point-sharing manner to form a Y shape;

among other prior art CN109038363A, relate to a suspension strain insulator cluster connecting device of magnet regulation high-voltage line cluster interval, though can realize being convenient for trample the maintenance climbing, but need be equipped with the spring wire, and the spring pipe, but above-mentioned device easily takes place to rust and rigidity change under long-time outdoor environment, consequently maintenance frequency can greatly increased.

Although the device can complete the in-and-out operation connection of the insulator string of the ultra-high voltage transmission line, the following problems still exist: the device is simple in structure setting, when the insulator on a high-voltage line is disassembled and installed, the insulator cannot be taken down in sequence manually on the fixed column and is directly placed when the insulator is installed, the insulator can be damaged in the dropping process, meanwhile, potential safety hazards exist in workers, the center of gravity is easy to be unstable and fall down, and accordingly, the device for connecting the strain insulator string of the ultra-high voltage transmission line in and out is provided.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a connecting device for the in-and-out operation of a strain insulator string of an ultra-high voltage transmission line, which aims to solve the problems in the background technology.

2. Technical scheme

A connecting device for the in-and-out operation of a strain insulator string of an ultra-high voltage transmission line comprises a fixed seat, wherein a climbing rod is arranged in the middle of the left side of the fixed seat, a plurality of crawling ladders are linearly welded on one side of the circumferential outer wall of the climbing rod at equal intervals, an operation platform is arranged at the upper end of the climbing rod, a guardrail is arranged at the edge of the upper side of the operation platform, an F-shaped fixed block is arranged at the left end of the upper side of the operation platform, a telescopic rod A is arranged at the right end of the upper side of the F-shaped fixed block, the lower end of the telescopic rod A penetrates through the inside of the F-shaped fixed block to extend to the outside, a supporting frame is fixedly arranged at the lower side of the supporting frame, a grabbing control block is fixedly arranged at the lower side of the supporting frame, a cross-shaped groove is formed in the grabbing control block, a hydraulic cylinder is arranged in the middle of the upper side of the grabbing control block, the piston end of the hydraulic cylinder penetrates through the outer wall of the grabbing control block to extend to the inside of the cross-shaped groove and is fixedly provided with a rack, the inner side of the cross-shaped groove is rotatably connected with a sector gear through a pin shaft, the lower side of the sector gear is fixedly provided with a support rod, the upper end of the outer side of the inside of the cross-shaped groove is rotatably connected with a balance rod through a pin shaft, a plurality of fetching claws are annularly and equidistantly arranged below the grabbing control block, the upper end of each fetching claw is welded with a fixed rod, the left end of the upper side of the F-shaped fixed block is provided with a controller, two empty grooves are symmetrically arranged at the middle position of the left end of the upper side of the fixed seat, a limit block is fixedly arranged at the middle position of the inner wall of each empty groove, a telescopic rod B is fixedly arranged at the upper side of each limit block, a through groove is formed in the inner side of each empty groove, the middle part of each through groove is of a left-right structure and is rotatably connected with two push rods through a pin shaft, the upper end of each push rod is of a diamond structure and is rotatably connected with a plurality of connecting rods through a pin shaft, insulator columns are arranged at the middle position of the left end of the upper side of the fixed seat, a plurality of insulator columns are linearly and equidistantly arranged on the outer wall of the circumference of each insulator column, hollow push plates are sleeved at lower ends of the insulator columns, two limiting columns are symmetrically arranged on the inner wall of the circumference of the hollow push plate, and two square grooves are symmetrically formed in the bottom surface of the hollow push plate.

Preferably, the rack is arranged in a cross structure, and the rack is meshed with the sector gear.

Preferably, the outer side of the fixed rod is rotatably connected with the lower end of the supporting rod through a pin shaft, and the inner side of the fixed rod is rotatably connected with the lower end of the balancing rod through a pin shaft.

Preferably, the upper end of the telescopic rod B is fixedly connected with one of the pin shafts, and the upper end of the connecting rod is rotatably connected with a hole formed in the inner wall of the square groove through the pin shaft.

Preferably, two sliding grooves are symmetrically formed in the outer wall of the circumference of the insulator column, and the sliding grooves are connected with the limiting columns in a sliding mode.

Preferably, get the claw and be the setting of C type structure, it is a plurality of get claw and insulator body centre gripping.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. according to the insulator body dismounting and mounting device, the telescopic rod B is fixedly arranged on the upper side of the limiting block, the left and right structures in the middle of the through groove are rotatably connected with the two push rods through the pin shaft, so that when the insulator body is dismounted and mounted, the insulator body can be pushed upwards through the hollow push plate by the connecting rod through the telescopic rod B, the insulator body can be taken down in sequence, the situation that the fixing columns are high and cannot be taken down in sequence is avoided, meanwhile, the insulator body is protected from being broken in the mounting process, the efficiency is improved, and the mounting quality is guaranteed.

2. According to the invention, the hydraulic cylinder is arranged in the middle of the upper side of the grabbing control block, the piston end of the hydraulic cylinder penetrates through the outer wall of the grabbing control block and extends to the inside of the cross-shaped groove, the rack is fixedly arranged, the sector gear is rotatably connected to the inner side of the cross-shaped groove through the pin shaft, and the plurality of annular and equidistant taking claws are arranged below the grabbing control block and are matched with the pushing of the hollow push plate, so that the insulator body at the uppermost end of the insulator column can be directly taken down or installed, and the rest can be done in sequence, the efficiency is improved, and the condition that the insulator is dangerous or damaged when being taken down or installed manually is avoided.

3. The invention can control and match the claw and the hollow push plate on the operation platform 4 by the controller staff; get the claw and be C type structure setting, it is a plurality of get claw and insulator body centre gripping, can directly snatch the insulator body through getting the claw, and the setting of C type structure for get the claw and can not lead to the insulator body to drop too tightly equally.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the empty tank of the present invention;

FIG. 3 is a schematic view of a connecting rod structure according to the present invention;

FIG. 4 is a schematic view of a grasping element according to the present invention;

FIG. 5 is an exploded view of the rack construction of the present invention;

the reference numbers in the figures illustrate: 1. a fixed seat; 101. an empty groove; 102. a limiting block; 103. a telescopic rod B; 104. a through groove; 105. a push rod; 106. a connecting rod; 2. climbing a pole; 3. climbing a ladder; 4. an operation platform; 5. a guardrail; 6. an F-shaped fixed block; 7. a telescopic rod A; 701. a support frame; 702. grabbing a control block; 703. a cross-shaped slot; 704. a hydraulic cylinder; 705. a rack; 706. a sector gear; 707. a support bar; 708. a balancing pole; 709. taking a claw; 7010. fixing the rod; 8. an insulator post; 801. a limiting column; 9. an insulator body; 10. a hollow push plate; 1001. a limiting column; 1002. a square groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution:

a connecting device for the in-and-out operation of a strain insulator string of an ultra-high voltage transmission line comprises a fixed seat 1, a climbing rod 2 is arranged in the middle of the left side of the fixed seat 1, a plurality of climbing ladders 3 are linearly welded at equal intervals on one side of the circumferential outer wall of the climbing rod 2, an operation platform 4 is arranged at the upper end of the climbing rod 2, a guardrail 5 is arranged at the edge of the upper side of the operation platform 4, an F-shaped fixed block 6 is arranged at the left end of the upper side of the operation platform 4, an expansion rod A7 is arranged at the right end of the upper side of the F-shaped fixed block 6, the lower end of an expansion rod A7 penetrates through the outer wall of the F-shaped fixed block 6 to extend to the outside and is fixedly provided with a support frame 701, a grabbing control block 702 is fixedly arranged at the lower side of the support frame 701, a cross-shaped groove 703 is arranged in the grabbing control block 702, a hydraulic cylinder 704 is arranged at the middle of the upper side of the grabbing control block 702, a piston end of the hydraulic cylinder 704 extends to the inside of the cross-shaped groove and is fixedly provided with a sector gear 706 through a pin roll, a supporting rod 707 is fixedly arranged at the lower side of a sector gear 706, the upper end of the outer side inside a cross-shaped groove 703 is rotatably connected with a balancing rod 708 through a pin shaft, a plurality of claw-taking claws 709 are annularly and equidistantly arranged below a grabbing control block 702, fixing rods 7010 are welded at the upper ends of the claw-taking claws 709, a controller is arranged at the left end of the upper side of an F-shaped fixing block 6, two hollow grooves 101 are symmetrically arranged at the middle position of the left end of the upper side of a fixing seat 1, a limiting block 102 is fixedly arranged at the middle position of the inner wall of each hollow groove 101, a telescopic rod B103 is fixedly arranged at the upper side of each limiting block 102, a through groove 104 is arranged at the inner side of each hollow groove 101, two push rods 105 are rotatably connected in a left-right structure through a pin shaft in the middle position of the left end of each through groove 104, a plurality of connecting rods 106 are rotatably connected in a rhombic structure through a pin shaft in the upper end of each push rod 105, an insulator column 8 is arranged at the middle position of the left end of the upper side of the fixing seat 1, a plurality of insulator columns 9 are linearly and equidistantly arranged on the outer wall of the insulator columns 8, and hollow push plates are sleeved with hollow push plates 10, two limiting columns 1001 are symmetrically arranged on the inner wall of the circumference of the hollow push plate 10, and two square grooves 1002 are symmetrically arranged on the bottom surface of the hollow push plate 10. Closely cooperate between the structure for the device can make connecting rod 106 upwards push away insulator body 9 through cavity push pedal 10 through telescopic link B103 when dismantling the installation to insulator body 9, makes it can be taken down in proper order, has avoided the higher unable condition of taking off in proper order of fixed column, has protected insulator body 9 can not break simultaneously in the installation, has improved efficiency, has guaranteed the installation quality.

Specifically, the rack 705 is disposed in a cross-shaped structure, and the rack 705 is engaged with the sector gear 706. The cross structure is arranged, so that the rack 705 can move up and down to drive the sector gears 706 to rotate, and the claw 709 is driven to open and close.

Further, the outer side of the fixed rod 7010 is rotatably connected with the lower end of the supporting rod 707 through a pin shaft, and the inner side of the fixed rod 7010 is rotatably connected with the lower end of the balancing rod 708 through a pin shaft. Through the setting of dead lever 7010 and bracing piece 707 for sector gear 706 drives bracing piece 707 when squinting, receives the spacing of dead lever 7010, keeps the parallel four sides type parallel structure all the time, thereby has realized getting claw 709 and has opened and shut.

Furthermore, the upper end of the telescopic rod B103 is fixedly connected with one of the pin shafts, and the upper end of the connecting rod 106 is rotatably connected with a hole formed in the inner wall of the square groove 1002 through the pin shaft. The telescopic rod B103 drives the group of connecting rods 106 to be opened, so that other connecting rods 106 are unfolded, the hollow push plate 10 is pushed to ascend, and the insulator body 9 is pushed.

Furthermore, two sliding grooves 801 are symmetrically formed in the outer circumferential wall of the insulator column 8, and the sliding grooves 801 are slidably connected with the limiting column 1001.

It should be noted that the claw 709 is arranged in a C-shaped structure, and the plurality of claws 709 are clamped with the insulator body 9. Can directly snatch insulator body 9 through getting claw 709, and the setting of C type structure for get the claw and can not lead to insulator body 9 to drop too tightly.

When the ultra-high voltage transmission line strain insulator string needs to pass in and out of the operation connecting device for operation, firstly, a worker reaches the operation platform 4 through the ladder stand 3, the telescopic rod B103 is made to stretch through the controller, because the upper end of the telescopic rod B103 is fixedly connected with one of the pin shafts, the upper end of the connecting rod 106 is rotatably connected with a hole formed in the inner wall of the square groove 1002 through the pin shaft, the telescopic rod B103 drives one group of connecting rods 106 to open, so that other connecting rods 106 are unfolded, the hollow push plate 10 is pushed to ascend, the insulator body 9 is pushed to ascend, at the moment, the telescopic rod A7 is made to stretch, the claw 709 reaches the grabbing height, the piston end of the hydraulic cylinder 704 extends, the piston end of the hydraulic cylinder 704 penetrates through the outer wall of the grabbing control block 702 to extend into the cross-shaped groove 703 and is fixedly provided with the rack 705 which is arranged in a cross structure, and the rack 705 is meshed with the sector gear 706, setting of cruciform structure, make the up-and-down motion of rack 705, can drive a plurality of sector gear 706 simultaneously and rotate, and sector gear 706 downside has set firmly bracing piece 707, and the dead lever 7010 outside is connected through round pin axle and bracing piece 707 lower extreme rotation, dead lever 7010 is inboard to be connected through round pin axle and balancing pole 708 lower extreme rotation, setting through dead lever 7010 and bracing piece 707, when making sector gear 706 drive bracing piece 707 skew, receive the spacing of dead lever 7010, keep the parallel structure of parallel four sides type all the time, thereby realized getting claw 709 to open and shut, snatch insulator body 9, and get claw 709 and be the setting of C type structure, a plurality of claws 709 and the centre gripping of insulator body 9 of getting. Can directly snatch insulator body 9 through getting claw 709, and the setting of C type structure for get the claw and can not lead to insulator body 9 to drop equally by the tension, the installation with dismantle the same reason.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an ultra-high voltage transmission line strain insulator string business turn over operation connecting device, includes fixing base (1), its characterized in that: fixing base (1) left side middle part is equipped with pole-climbing (2), pole-climbing (2) circumference outer wall one side is equipped with and is linear equidistant welding has a plurality of cat ladders (3), pole-climbing (2) upper end is equipped with work platform (4), work platform (4) upside edge is equipped with guardrail (5), work platform (4) upside left end is equipped with F type fixed block (6), F type fixed block (6) upside right-hand member is equipped with telescopic link A (7), telescopic link A (7) lower extreme passes F type fixed block (6) inside and extends to the outside and has set firmly support frame (701), support frame (701) downside has set firmly and has snatched control block (702), snatch control block (702) inside cross groove (703) of having seted up, snatch control block (702) upside middle part is equipped with pneumatic cylinder (704), pneumatic cylinder (704) piston end passes and snatchs control block (702) outer wall and extends to cross groove (703) inside and has set firmly the rack (705) The inner side of the inside of the cross-shaped groove (703) is rotatably connected with a sector gear (706) through a pin shaft, the lower side of the sector gear (706) is fixedly provided with a supporting rod (707), the upper end of the inner side of the cross-shaped groove (703) is rotatably connected with a balancing rod (708) through a pin shaft, a plurality of fetching claws (709) are arranged below the grabbing control block (702) in an annular and equidistant manner, the upper end of each fetching claw (709) is welded with a fixing rod (7010), the left end of the upper side of the F-shaped fixing block (6) is provided with a controller, two empty grooves (101) are symmetrically arranged in the middle of the left end of the upper side of the fixing seat (1), the middle position of the inner wall of each empty groove (101) is fixedly provided with a limiting block (102), the upper side of each limiting block (102) is fixedly provided with a telescopic rod B (103), the inner side of each empty groove (101) is provided with a through groove (104), the middle of each through groove (104) is of a left-right structure and is rotatably connected with two push rods (105) through a pin shaft, push rod (105) upper end is the rhombus structure and rotates through the round pin axle and be connected with a plurality of connecting rods (106), fixing base (1) upside left end intermediate position is equipped with insulator post (8), insulator post (8) circumference outer wall is linear equidistant and is equipped with a plurality of insulator bodies (9), the pot head is equipped with cavity push pedal (10) under insulator post (8), cavity push pedal (10) circumference inner wall symmetry is equipped with two spacing posts (1001), two square grooves (1002) have been seted up to cavity push pedal (10) bottom surface symmetry.

2. The connection device for the in-and-out operation of the strain insulator string of the ultra-high voltage transmission line according to claim 1, is characterized in that: the rack (705) is arranged in a cross-shaped structure, and the rack (705) is meshed with the sector gear (706).

3. The connection device for the in-and-out operation of the strain insulator string of the ultra-high voltage transmission line according to claim 1, is characterized in that: the outer side of the fixed rod (7010) is rotatably connected with the lower end of the supporting rod (707) through a pin shaft, and the inner side of the fixed rod (7010) is rotatably connected with the lower end of the balancing rod (708) through a pin shaft.

4. The connection device for the in-and-out operation of the strain insulator string of the ultra-high voltage transmission line according to claim 1, is characterized in that: the upper end of the telescopic rod B (103) is fixedly connected with one pin shaft, and the upper end of the connecting rod (106) is rotatably connected with a hole formed in the inner wall of the square groove (1002) through the pin shaft.

5. The connection device for the in-and-out operation of the strain insulator string of the ultra-high voltage transmission line according to claim 1, is characterized in that: two sliding grooves (801) are symmetrically formed in the outer wall of the circumference of the insulator column (8), and the sliding grooves (801) are connected with the limiting column (1001) in a sliding mode.

6. The connection device for the in-and-out operation of the strain insulator string of the ultra-high voltage transmission line according to claim 1, is characterized in that: get claw (709) and be the setting of C type structure, it is a plurality of get claw (709) and insulator body (9) centre gripping.