CN110984833A - Interlayer ladder stand for light-operated converter valve - Google Patents
Interlayer ladder stand for light-operated converter valve Download PDFInfo
- Publication number
- CN110984833A CN110984833A CN201911109191.4A CN201911109191A CN110984833A CN 110984833 A CN110984833 A CN 110984833A CN 201911109191 A CN201911109191 A CN 201911109191A CN 110984833 A CN110984833 A CN 110984833A
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- China
- Prior art keywords
- converter valve
- clamping seat
- ladder body
- ladder
- insulating ladder
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The invention relates to an interlayer ladder for a light-operated converter valve, which consists of an insulating ladder body, an upper clamping seat, a lower clamping seat, a protective ring, a safety rope and a rope hanging ring, can realize the mutual transfer of operation and maintenance personnel from an upper layer (a lower layer) to a lower layer (an upper layer), namely can realize the free transfer of the operation and maintenance personnel from a bottom layer (a top layer) to a top layer (a bottom layer) of a valve tower, breaks through the traditional maintenance mode that the operation and maintenance work of the light-operated converter valve excessively depends on a scissor-type lifting platform, and overcomes the defects of long time, multiple workers and multiple vehicles in the operation and maintenance of the light-operated converter valve to a great extent, thereby effectively improving the work efficiency of power failure maintenance, shortening the equipment shutdown time of the converter valve and improving the equipment utilization rate.
Description
Technical Field
The invention relates to an interlayer ladder for a light-operated converter valve.
Background
The rapid development of domestic and foreign (special) high-voltage direct-current transmission technology and the more and more direct-current transmission engineering construction and operation can effectively solve the problem of uneven energy distribution. At present, the thyristor converter valve put into operation in direct current transmission engineering in China mainly adopts two technical routes of light control and electric control. Each direct current transmission line needs to be shut down for 1-2 times per year to carry out equipment operation and maintenance work, and the light-operated converter valve equipment needs to carry out annual maintenance work for at least 10-20 days.
Use the light-operated converter valve annual inspection of 500kV convertor station as an example, 8 technical staff are needed at least, dispose the lift truck more than 2, its tradition overhauls the mode and uses 1 lift truck for per 4 personnel, the lift truck rises to corresponding valve layer after, personnel get into this valve layer through the lift truck and carry out the operation and maintenance work, treat after this valve layer work, the personnel that get into this valve layer return the lift truck, the lift truck rises once more to next corresponding valve layer after, personnel get into next corresponding valve layer through the lift truck once more and carry out the operation and maintenance work. The descending situation is similar to the ascending situation and will not be described again.
Therefore, in the traditional maintenance mode, a process of 'people waiting for cars', etc. often occurs, and the work items of 4 maintenance personnel are inconsistent, and naturally, the work finishing time of the valve layer is inconsistent, so that the situation of 'people waiting for people, people waiting for cars', etc. is caused. Therefore, under the traditional maintenance mode, the current situations of overlong working time, more lifting vehicle requirements, overlarge resource consumption and low operation and maintenance efficiency exist in operation and maintenance such as annual maintenance, defect elimination, hidden danger troubleshooting and the like of the light-operated converter valve equipment.
Disclosure of Invention
The invention aims to provide an interlayer ladder stand for a light-operated converter valve, which is used for solving the problems of long time required by maintenance and low maintenance efficiency of the existing converter valve maintenance mode.
In order to achieve the purpose, the technical scheme of the interlayer ladder stand for the light-operated converter valve is as follows:
the interlayer ladder for the light-operated converter valve comprises an insulating ladder body, wherein the top and the bottom of the insulating ladder body are respectively provided with an upper clamping seat and a lower clamping seat;
the lower clamping seat is arranged on the insulating ladder body and is provided with a lower clamping groove with a downward opening, and the lower clamping groove is used for clamping and connecting the upper parts of the side coamings of the corresponding layers of the converter valve frame body so as to limit the position of the converter valve frame body in the horizontal direction through the side coamings;
the upper clamping seat is arranged on the insulating ladder body, an upper clamping groove with a downward opening is formed in the upper clamping seat, and the upper clamping groove is used for being clamped to the upper portion of a side wall plate on the upper layer of the corresponding layer of the converter valve frame body to limit the converter valve frame body in the horizontal direction through the side wall plate.
The interlayer ladder stand for the light-operated converter valve has the advantages that: lower joint seat and last joint seat form spacing to the cat ladder horizontal direction between the layer altogether, and the cat ladder forms the support to the cat ladder between the layer down joint seat, make the reliable support of cat ladder between the layer on the side bounding wall of converter valve, and guarantee the security of cat ladder between the layer, this cat ladder between light-operated converter valve can supply the operation maintenance maintainer freely to remove between each valve layer with the layer cat ladder, thereby can reduce the quantity and the dwell time of the required lift truck of operation maintenance, long waiting time of operation maintenance maintainer has been reduced simultaneously, the maintenance efficiency of converter valve equipment has been improved.
Further, go up the joint seat along the activity of upper and lower direction setting on insulating ladder body, insulating ladder body with go up and be equipped with the locking structure between the joint seat, the locking structure is used for going up the joint seat locking on insulating ladder body.
Its beneficial part lies in, will go up the joint groove and install the back on the side bounding wall, need not wholly mention insulating ladder body when the joint groove down in the installation, reduce intensity of labour.
Furthermore, one of the insulating ladder body and the upper clamping seat is provided with a long hole extending along the vertical direction, and the other one of the insulating ladder body and the upper clamping seat is fixed with a guide rod which is in sliding fit with the long hole along the vertical direction.
The novel electric heating cooker has the advantages of being simple in structure and convenient to process.
Furthermore, one of the insulating ladder body and the upper clamping seat is provided with a threaded rod with external threads, the other one of the insulating ladder body and the upper clamping seat is provided with a long hole extending along the up-down direction, and the threaded rod is used for being in sliding fit with the long hole along the up-down direction;
one end of the threaded rod is fixed on the corresponding insulating ladder body or the upper clamping seat, the other end of the threaded rod is connected with a locking nut, and the locking structure is composed of the threaded rod and the locking nut.
The threaded rod has the advantages that the threaded rod can be used for being in sliding fit with the long hole in the up-down direction, and can be locked on the upper clamping seat together with the nut, so that the structure is simple, and the manufacture is convenient.
Furthermore, the upper clamping seat and the lower clamping seat are formed by bending plates.
The beneficial effect is that it is easy to manufacture.
Further, lower joint seat sets up on the side of the side bounding wall that is close to the converter valve on insulating ladder body, it includes ladder body connecting portion to go up the joint seat, ladder body connecting portion set up on the side of the side bounding wall of keeping away from the converter valve on insulating ladder body.
The locking structure has the beneficial effects that the locking structure is convenient for operation and maintenance maintainers to control.
Furthermore, the insulating ladder body is provided with a protective ring, and the protective ring and the insulating ladder body enclose a channel for operation and maintenance maintainers to pass through.
Its beneficial part lies in that, the guardrail can play the effect of keeping apart fortune dimension maintainer and equipment, prevents the mutual contact between fortune dimension maintainer and the equipment, can enough protect fortune dimension maintainer's safety, can protect the safety of equipment again.
Furthermore, the interlayer ladder stand for the light-operated converter valve further comprises a safety rope, one end of the safety rope is fixed on the insulating ladder body, the other end of the safety rope is provided with a hook ring, and the hook ring is used for being hooked on a hanging ring on the converter valve frame body.
The hanging ring has the advantages that the hanging ring is used for being hung on the hanging ring at the corner of the closest layer of the converter valve equipment when the hanging ring is used, and people or equipment below the ladder stand can be prevented from being injured by falling or sliding accidentally.
Further, be equipped with the rope link on the insulating ladder body, the safety rope passes through the rope go-between and connects on the rope link, and the safety belt that supplies fortune dimension maintainer to use is simultaneously colluded on hanging rope link and rope go-between.
The safety belt has the beneficial effects that the rope hanging ring and the rope connecting ring are matched with the safety belt simultaneously to form double hanging points of the safety belt, so that the operation and maintenance maintainers can be prevented from accidentally falling off or falling off when climbing on the interlayer ladder stand for the converter valve, and the personal safety of the operation and maintenance maintainers is effectively ensured.
Furthermore, insulating ladder body, last joint seat and lower joint seat are the SMC material.
It has the advantages that: reliable insulation and proper structural strength.
Drawings
Fig. 1 is a three-dimensional view of an embodiment of an interlayer ladder for a light control converter valve according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a schematic diagram 1 of a specific embodiment of an interlayer ladder stand for a light-operated converter valve and a converter valve in cooperation, according to the present invention;
FIG. 4 is a back side view of FIG. 3;
FIG. 5 is a top view of FIG. 3;
in the figure: 1. montant, 2, horizontal pole, 3, go up joint seat, 31, ladder body connecting portion, 4, rope link, 5, butterfly nut, 6, joint seat slot hole, 7, lower joint seat, 8, guard ring, 9, safety rope, 91, rope go-between, 92, collude ring, 10, converter valve support body, 11, side wall board.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In a specific embodiment of the interlayer ladder (hereinafter referred to as an interlayer ladder) for the light-operated converter valve, as shown in fig. 1 and 2, the interlayer ladder comprises an insulating ladder body, and the length of the insulating ladder body is adapted to the valve layer interval of the converter valve, and is usually about 1.5 meters. The insulating ladder body includes two montants 1 and connects four horizontal poles 2 between two montants 1, and the upper end of montant 1 sets up along the activity of upper and lower direction and is equipped with joint seat 3, goes up to be equipped with the draw-in groove on joint seat 3, and the draw-in groove opening sets up down, as shown in fig. 3, goes up the draw-in groove and is used for the joint to the side wall board 11 of the last layer on the corresponding layer of converter valve support body 10 on to it is spacing to the upper portion of layer cat ladder on the horizontal direction through side wall board 11.
The insulating ladder body does with the connected mode of last joint seat 3: go up the joint seat and have ladder body connecting portion 31, ladder body connecting portion 31 and the side cooperation of keeping away from converter valve side bounding wall, the direction fixedly connected with threaded rod of perpendicular to montant 1 is followed at 1 top of montant, be equipped with the joint seat slot hole 6 that extends along the extending direction of montant 1 on the ladder body connecting portion 31, joint seat slot hole 6 supplies the threaded rod at 1 top of montant to pass, the cooperation through joint seat slot hole 6 and threaded rod is fixed on montant 1 along upper and lower direction position adjustable in order to realize that joint seat 3 goes up.
Be equipped with between insulating ladder body and the last joint seat 3 and be used for with the bolt cooperation will go up the nut of joint seat 3 locking, the nut is butterfly nut 5 for supply the fortune dimension maintainer with manual form realization fastening and the pine of unscrewing, the threaded rod constitutes the locking structure with butterfly nut 5.
As shown in fig. 4 and 5, the lower end of the vertical rod 1 is fixedly connected with a lower clamping seat 7, the lower clamping seat 7 is arranged on the side face close to the side wall plate of the converter valve, a lower clamping groove with a downward opening is arranged on the lower clamping seat 7, the lower clamping groove is a U-shaped groove with a downward opening, and is used for being clamped to the upper portion of the side wall plate 11 on the corresponding layer of the converter valve frame body 10, the ladder stand between layers is supported through the matching of the lower clamping seat 7 and the upper portion of the side wall plate 11 on the corresponding layer of the converter valve frame body 10, and the lower portion of the ladder stand between layers is limited in the horizontal. The lower clamping groove is a U-shaped groove with a downward opening, the upper portion of the side coaming 11 on the corresponding layer of the converter valve frame body 10 can be firmly clamped, and a maintainer can easily remove the matching of the lower clamping groove and the side coaming 11 on the corresponding layer of the converter valve frame body 10 in a portable mode on the upper layer of the corresponding layer of the converter valve frame body 10, so that the light-operated converter valve ladder stand can be detached by only one operation and maintenance maintainer.
The upper portion of ladder body is equipped with guard ring 8, and guard ring 8 encloses into the passageway that supplies fortune dimension maintainer to pass through with insulating ladder body. The protective ring 8 can play a role in isolating personnel from equipment, prevent mutual contact between the personnel and the equipment, and can protect the safety of the personnel and the equipment.
The interlayer ladder stand for the light-operated converter valve further comprises a safety rope 9, a rope hanging ring 4 is arranged on the insulating ladder body, the safety rope 9 is connected to the rope hanging ring 4 through a rope connecting ring 91, a hook ring 92 is arranged at the other end of the safety rope 9, and the hook ring 92 is used for being hung on a hanging ring at the corner of the upper layer of the corresponding layer of the converter valve frame body 10 in use. The safety belt used by the operation and maintenance staff can be hooked on the rope hanging ring 4 and the rope connecting ring 91 at the same time. Rope go-between 91 and rope link 4 cooperate with the safety belt simultaneously, form the double-deck protection hanging point of safety belt, have reduced fortune maintenance service personnel's the risk that the disappearance falls greatly.
Insulating ladder body, lower joint seat 7 and rope link 4 all adopt the SMC to make, have good insulating nature under the prerequisite of guaranteeing intensity, prevent that the ladder between the layer from producing harm to fortune dimension maintainer's personal safety because of contacting the high-voltage live part.
The working principle of the specific embodiment of the interlayer ladder stand for the light-operated converter valve is as follows:
1. the operation and maintenance maintainers enter the upper valve layer from the lower valve layer (taking the operation and maintenance maintainers to start the operation and maintenance from the first layer as an example):
1) when the lifting platform rises to the position corresponding to the first layer of the converter valve frame body 10, the operation and maintenance maintainer wears a double-rope safety belt according to the maintenance standard of the converter valve equipment, one safety rope is tied on the valve tower, then the lifting platform enters the first layer of the converter valve frame body 10, the lifting platform person passes one end, with the hook ring 92, of the safety rope 9 to the operation and maintenance maintainer in the valve tower, and with the assistance of the lifting platform person, the operation and maintenance maintainer in the first layer of the converter valve frame body 10 hangs the hook ring 92 of the safety rope 9 on a hanging ring at the corner of the second layer of the converter valve frame body 10 and ensures that the safety rope 9 is fixed firmly.
2) The operation and maintenance personnel in the valve tower erect the ladder between the layers and clamp the upper clamping seat 3 at the side wall plate 11 of the second layer of the converter valve frame body 10, prevent the upper clamping seat 3 from moving upwards and simultaneously lift the insulating ladder body upwards, clamp the lower clamping seat at the side wall plate 11 of the first layer of the converter valve frame body 10, enable the upper clamping seat 3 and the vertical rod 1 to be clamped to the side wall plate 11 of the second layer of the converter valve frame body 10, and manually tighten the butterfly nut 5 to complete the installation of the ladder between the layers. The relative position between the upper clamping seat 3 and the vertical rod 1 is fixed, and the upper part of the interlayer ladder stand is stably fixed under the matching of the upper clamping seat 3 and the side coaming 11 on the second layer of the converter valve frame body 10.
3) On another safety rope with two rope safety belts colluded simultaneously rope link 4 and rope go-between 91, take off the safety rope of original system on the valve tower, fortune dimension maintainer climbs to supreme converter valve support body 10 second floor via insulating ladder body by converter valve support body 10 first layer, at the in-process of upwards climbing, protection ring 8 can avoid the mutual contact of people and equipment.
4) After personnel are transferred to the second layer of the converter valve frame body 10, the maintenance operation and maintenance are carried out on the equipment, after the maintenance operation and maintenance are finished, the safety rope originally tied on the valve tower is tied on the valve tower again, and then the other safety rope which is matched with the rope hanging ring 4 and the rope connecting ring 91 simultaneously is taken down; the method comprises the steps of releasing the matching of a safety rope 9 and a hanging ring at the corner of a converter valve frame body 10, fixing the safety rope on the hanging ring at the corner of the third layer of the converter valve frame body 10, manually unscrewing a butterfly nut 5 in a squatting state, releasing the matching of an upper clamping seat 3 and a side wall plate 11 of the second layer of the converter valve frame body 10, vertically transferring a ladder stand upwards, clamping the upper clamping seat 3 at the side wall plate 11 of the third layer of the converter valve frame body 10, starting to install the insulating ladder stand again, continuing to transfer upwards after the installation is completed, then overhauling, transporting and maintaining equipment of the third layer of the converter valve frame body 10, and repeating the steps until the safety rope is transferred to the top layer.
2. The operation and maintenance staff transfer from the upper layer to the lower layer (taking the operation and maintenance staff starting the operation and maintenance from the third layer as an example):
(1) when the lifting platform rises to the position corresponding to the third layer of the converter valve frame body 10, the operation and maintenance maintainer wears a double-rope safety belt according to the maintenance standard of the converter valve equipment, and ties one safety rope on the valve tower, then the safety rope enters the third layer of the converter valve frame body 10 through the lifting platform, the lifting platform personnel pass the safety rope 9 to the operation and maintenance maintainer in the third layer of the converter valve frame body 10, under the assistance of the lifting platform personnel, the operation and maintenance maintainer in the third layer of the converter valve frame body 10 hangs the hook ring 92 of the safety rope 9 on the hanging ring at the corner of the third layer of the converter valve frame body 10, and ensures that the safety rope 9 is fixed firmly. (ii) a
(2) The operation and maintenance personnel in the valve tower erect the ladder between the layers and clamp the upper clamping seat 3 at the side wall plate 11 of the third layer of the converter valve frame body 10, prevent the upper clamping seat 3 from moving upwards and simultaneously lift the insulating ladder body upwards, clamp the lower clamping seat at the side wall plate 11 of the second layer of the converter valve frame body 10, enable the upper clamping seat 3 and the vertical rod 1 to be clamped to the side wall plate 11 of the second layer of the converter valve frame body 10, and manually tighten the butterfly nut 5 to complete the installation of the ladder between the layers.
3) On another safety rope with two rope safety belts colluded simultaneously rope link 4 and rope go-between 91, take off the safety rope of original system on the valve tower, fortune dimension maintainer climbs to supreme converter valve support body 10 second floor via insulating ladder body by converter valve support body 10 third layer, at the in-process of upwards climbing, protection ring 8 can avoid the mutual contact of people and equipment.
4) After personnel are transferred to the second layer of the converter valve frame body 10, the maintenance operation and maintenance are carried out on the equipment, after the maintenance operation and maintenance are finished, the safety rope originally tied on the valve tower is tied on the valve tower again, and then the other safety rope which is matched with the rope hanging ring 4 and the rope connecting ring 91 simultaneously is taken down; the method comprises the steps of releasing the matching of a safety rope 9 and a hanging ring at the corner of a converter valve frame body 10, fixing the safety rope on the hanging ring at the corner of a second layer of the converter valve frame body 10, manually unscrewing a butterfly nut 5, releasing the matching of an upper clamping seat 3 and a side wall plate 11 of a third layer of the converter valve frame body 10, vertically transferring a ladder stand downwards, clamping the upper clamping seat 3 at the side wall plate 11 of the second layer of the converter valve frame body 10, starting the re-installation of an insulating ladder stand, continuing to transfer downwards after the installation is completed, and then overhauling, transporting and maintaining equipment of the first layer of the converter valve frame body 10.
In other embodiments, the upper clamping seat can also be fixedly arranged on the insulating ladder body, the depth of the upper clamping groove can be larger than that of the lower clamping groove at the moment, the insulating ladder stand is slightly lifted after the upper part of the insulating ladder stand is installed, and the position of the lower part of the ladder stand between layers is adjusted while the upper clamping groove is kept to be matched with the side wall plate on the upper layer of the corresponding layer of the converter valve frame body, so that the lower clamping groove is matched with the side wall plate on the corresponding layer of the converter valve frame body, and the installation of the ladder stand between layers is realized.
In other embodiments, the insulating ladder body is provided with a threaded rod, and the upper clamping seat is provided with a long hole.
In other embodiments, except that the form that adopts the guide arm to be the threaded rod realizes going up the joint chair and the locking of insulating ladder body about the activity cooperation and realization to going up the joint chair, can also adopt other forms, for example, along the locating pin of horizontal pole direction extension, realize the locking to going up the joint chair, the locking structure comprises the locating pin, can set up a plurality of locating holes that supply the locating pin male on montant and last joint chair to the different valve layer interval of adaptation.
In this embodiment, the upper clamping seat 3 and the lower clamping seat 7 are formed by bending a plate, and in other embodiments, the upper clamping seat and the lower clamping seat may be supported in other forms, for example, by welding a straight plate to form a desired shape, or by forming a groove on a vertical rod to form an upper clamping groove and a lower clamping groove.
In this embodiment, lower joint seat 7 sets up on the side that the insulating ladder body is close to converter valve support 10, and ladder body connecting portion 31 sets up on the side that the insulating ladder body is kept away from converter valve support 10, in other embodiments, go up the position of joint seat and lower joint seat and can adjust as required, for example, lower joint seat can all set up in the one side that is close to the converter valve support with last joint seat.
In other embodiments, a guard ring may not be provided, and the operation and maintenance staff is required to have smaller actions when climbing, so that the operation and maintenance staff are more cautious.
In other embodiments, the rope hanging ring can be only used for connecting the rope connecting ring, and other hanging rings for hanging the safety belt used by the operation and maintenance staff are arranged on the ladder body.
In other embodiments, lower joint seat also can set up with insulating ladder body components of a whole that can function independently, and lower joint seat articulates on insulating ladder body, because lower joint seat has two, so although lower joint seat can rotate around articulated axis, still can realize the reliable cooperation with the side wall board.
Claims (10)
1. The interlayer ladder stand for the light-operated converter valve is characterized by comprising an insulating ladder body, wherein the top and the bottom of the insulating ladder body are respectively provided with an upper clamping seat and a lower clamping seat;
the lower clamping seat is arranged on the insulating ladder body and is provided with a lower clamping groove with a downward opening, and the lower clamping groove is used for clamping and connecting the upper parts of the side coamings of the corresponding layers of the converter valve frame body so as to limit the position of the converter valve frame body in the horizontal direction through the side coamings;
the upper clamping seat is arranged on the insulating ladder body, an upper clamping groove with a downward opening is formed in the upper clamping seat, and the upper clamping groove is used for being clamped to the upper portion of a side wall plate on the upper layer of the corresponding layer of the converter valve frame body to limit the converter valve frame body in the horizontal direction through the side wall plate.
2. The interlayer ladder for the light control converter valve as set forth in claim 1, wherein: go up the joint seat along the activity of upper and lower direction setting on insulating ladder body, insulating ladder body with go up and be equipped with the locking structure between the joint seat, the locking structure is used for going up the joint seat locking on insulating ladder body.
3. The interlayer ladder for the light control converter valve as set forth in claim 2, wherein: one of the insulating ladder body and the upper clamping seat is provided with a long hole extending along the vertical direction, and the other one of the insulating ladder body and the upper clamping seat is fixedly provided with a guide rod which is in sliding fit with the long hole along the vertical direction.
4. The interlayer ladder for the light control converter valve as set forth in claim 2, wherein: one of the insulating ladder body and the upper clamping seat is provided with a threaded rod with external threads, the other one of the insulating ladder body and the upper clamping seat is provided with a long hole extending along the up-down direction, and the threaded rod is used for being in sliding fit with the long hole along the up-down direction;
one end of the threaded rod is fixed on the corresponding insulating ladder body or the upper clamping seat, the other end of the threaded rod is connected with a locking nut, and the locking structure is composed of the threaded rod and the locking nut.
5. The interlayer ladder for the light control converter valve according to claim 1, 2, 3 or 4, wherein: and the upper clamping seat and the lower clamping seat are formed by bending plates.
6. The interlayer ladder for the light control converter valve according to claim 1, 2, 3 or 4, wherein: the lower clamping seat is arranged on the side face, close to the side wall plate of the converter valve, of the insulating ladder body, the upper clamping seat comprises a ladder body connecting portion, and the ladder body connecting portion are arranged on the side face, far away from the side wall plate of the converter valve, of the insulating ladder body.
7. The interlayer ladder for the light control converter valve according to claim 1, 2, 3 or 4, wherein: the insulating ladder body is provided with a guard ring, and the guard ring and the insulating ladder body enclose a channel for operation and maintenance maintainers to pass through.
8. The interlayer ladder for the light control converter valve according to claim 1, 2, 3 or 4, wherein: the interlayer ladder stand for the light-operated converter valve further comprises a safety rope, one end of the safety rope is fixed on the insulating ladder body, the other end of the safety rope is provided with a hook ring, and the hook ring is used for being hooked on a hanging ring on the converter valve frame body.
9. The interlayer ladder for the light control converter valve as set forth in claim 8, wherein: the safety rope is connected to the rope hanging ring through the rope connecting ring, and the safety belt used by the operation and maintenance maintainer is hooked to the rope hanging ring and the rope connecting ring simultaneously.
10. The interlayer ladder for the light control converter valve according to claim 1, 2, 3 or 4, wherein: insulating ladder body, last joint seat and lower joint seat are the SMC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109191.4A CN110984833B (en) | 2019-11-13 | 2019-11-13 | Interlayer ladder stand for light-operated converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109191.4A CN110984833B (en) | 2019-11-13 | 2019-11-13 | Interlayer ladder stand for light-operated converter valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110984833A true CN110984833A (en) | 2020-04-10 |
| CN110984833B CN110984833B (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911109191.4A Active CN110984833B (en) | 2019-11-13 | 2019-11-13 | Interlayer ladder stand for light-operated converter valve |
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| CN104092145A (en) * | 2014-06-13 | 2014-10-08 | 国家电网公司 | Horizontal adjustable hanging tool of insulating ladder |
| CN205503002U (en) * | 2016-03-28 | 2016-08-24 | 许继电气股份有限公司 | Insulating ladder |
| CN109193467A (en) * | 2018-11-06 | 2019-01-11 | 国网四川省电力公司资阳供电公司 | Power transmission lines overhauling ladder |
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| CN110984833B (en) | 2021-06-08 |
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Effective date of registration: 20200918 Address after: 671000 Dali Bai Autonomous Prefecture of Yunnan Province Dali City Innovation Industrial Park Yao Peng Mingzhu 3 buildings 5-9 floors Applicant after: DALI BUREAU OF ULTRA HIGH VOLTAGE TRANSMISSION COMPANY, CHINA SOUTHERN POWER GRID Co.,Ltd. Applicant after: XJ Group Corp. Applicant after: XJ ELECTRIC Co.,Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant before: XJ Group Corp. Applicant before: XJ ELECTRIC Co.,Ltd. |
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Inventor after: Zheng Xinming Inventor after: Wang Xiaomin Inventor after: Mao Zhiyun Inventor after: Han Kun Inventor after: Yue Yafei Inventor after: Huang Chenyulong Inventor after: Ding Shuai Inventor after: Guan Gengsheng Inventor before: Wang Xiaomin Inventor before: Ye Hongen Inventor before: Guan Gengsheng Inventor before: Mao Zhiyun Inventor before: Hu Siquan Inventor before: Fan Caiyun Inventor before: Han Kun Inventor before: Yue Yafei Inventor before: Huang Chenyulong Inventor before: Ding Shuai Inventor before: Liu Kun |
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