CN218376288U

CN218376288U - Current conversion station overhauls uses cat ladder

Info

Publication number: CN218376288U
Application number: CN202222205882.8U
Authority: CN
Inventors: 谭静; 刘威; 陈国训
Original assignee: Dc Co Of State Grid Hubei Electric Power Co ltd
Current assignee: Dc Co Of State Grid Hubei Electric Power Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-24
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a current conversion station overhauls and uses cat ladder, including the cat ladder, be provided with the horizontal pole between the cat ladder, spacing recess has been seted up to the cat ladder lower surface, the inside fixed mounting of spacing recess has return spring, the first stopper of return spring other end fixedly connected with, cat ladder one side surface movable mounting has the fixed knot of connection, the horizontal pole top just is located to be provided with the running-board between the horizontal pole, the positive surface of cat ladder just is close to upper surface edge fixed position and installs the guardrail, cat ladder both sides surface movable mounting has the bracing, the positive surface of cat ladder is provided with the retaining ring cable, the fixed orifices has been seted up on the positive surface of cat ladder. Through spacing rotatory recess and the mutual cooperation of second stopper, make first connecting block can be along the rotatory certain angle of spacing rotatory recess, separate the back with coupling hook and horizontal pole, can drive the running-board rotatory to cat ladder one side, avoid influencing the user climbing.

Description

Current conversion station overhauls uses cat ladder

Technical Field

The utility model belongs to the technical field of the power supply transformer, concretely relates to current conversion station overhauls and uses cat ladder.

Background

The converter station equipment is generally higher and larger, the number of the converter station equipment is large, the occupied area is large, and in the cleaning and overhauling processes, professional ascending equipment or auxiliary ascending tools must be configured. For example, when equipment on a converter transformer network side sleeve, a direct current voltage divider and a converter transformer firewall is overhauled, an operation vehicle cannot enter, the overhauling work such as equipment cleaning, breaking and re-leading, equipment testing and the like needs to be carried out by using a crane, the difficulty in carrying out is high, the risk of high-altitude operation of personnel is high, and therefore a ladder specially used for overhauling appears.

A special cat ladder of converter station maintenance as the publication number CN207526405U that chinese patent discloses, including stand connection fixed knot (3), crossbeam (7), its characterized in that: the lower end of a stand column connecting and fixing buckle (3) is provided with a fixed foot crawling ladder (1) and a fixed ring cable (2), the fixed ring cable (2) is fixed on a cross beam (7) which is at the same height as the fixed ring cable by a limiting support (8), the upper part of the stand column connecting and fixing buckle (3) is hinged with an inclined strut pedal plate (4), the lower end of the inclined strut pedal plate (4) is provided with the fixed foot crawling ladder (1), the upper end of the stand column connecting and fixing buckle (3) is provided with a guardrail (6), and a pedal plate (5) can be installed on any cross beam (7). The beneficial effects are as follows: simple structure, easy and simple to handle, easily preparation, it is with low costs, maintenance efficiency and personnel's security have been improved, the power off time has been reduced, avoid using the potential safety hazard that large-scale operation vehicles such as crane brought, solve the difficulty in the actual work, social is obvious, good wide application prospect has, but it is in the use, ground is often hollow uneven, the cat ladder is difficult to vertically erect next door of convertor station, and the platform sets up in the positive surface department of cat ladder, the in-process of climbing from top to bottom of the user, the platform can influence the problem of user climbing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a current conversion station overhauls uses cat ladder to propose the current special cat ladder of current conversion station maintenance in solving above-mentioned background art in the use, because ground often hollow is uneven, the cat ladder is difficult to the vertical problem of erectting on the current conversion station next door.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a current conversion station overhauls and uses cat ladder, includes the cat ladder, be provided with the horizontal pole between the cat ladder, spacing recess has been seted up to the cat ladder lower surface, the inside fixed mounting of spacing recess has return spring, the first stopper of return spring other end fixedly connected with, cat ladder one side surface movable mounting has the connection to fix and detains, the horizontal pole top just is located and is provided with the running-board between the horizontal pole.

The universal ball and the supporting legs are matched with each other through the arrangement, the supporting legs can rotate at any angle, so that the supporting legs can be always attached to the ground, the supporting legs are matched with the inclined struts, the ladder stand can be vertically erected on the ground, the pedal plate is matched with the connecting fixing buckle, the pedal plate can rotate to one side of the ladder stand through the connecting fixing buckle when the ladder stand is not used, and the user climbing is prevented from being influenced.

Preferably, the guardrail is fixedly mounted on the front surface of the crawling ladder and close to the edge of the upper surface, the inclined struts are movably mounted on the outer surfaces of two sides of the crawling ladder, the fixing ring cables are arranged on the front surface of the crawling ladder, and the fixing holes are formed in the front surface of the crawling ladder.

Specifically, the stability of the crawling ladder can be improved through the inclined strut, the fixing ring cable is sleeved on the outer ring of the converter station, the crawling ladder is fixed on one side of the converter station, and the pedal plate can be fixed on the front surface of the crawling ladder through the fixing hole.

Preferably, a threaded support column is fixedly arranged on the lower surface of the first limiting block, an adjusting nut is movably sleeved on the outer surface of the threaded support column, a universal ball is fixedly arranged on the lower surface of the threaded support column, and a supporting leg is movably arranged on the outer surface of the universal ball.

It is specific, can provide certain pulling force for first stopper through return spring, thereby draw in inside the spacing recess with first stopper, adjusting nut can block the screw thread support column, prevent that the screw thread support column is whole to get into inside the spacing recess, can adjust the position that is located screw thread support column surface through rotatory adjusting nut, thereby adjust the inside length of screw thread support column stretching out spacing recess, the screw thread support column stretches out length and changes, universal ball can be along with removing, thereby drive the supporting legs and remove, through adjusting the supporting legs position, adapt to pothole ground, make the cat ladder can keep vertical state.

Preferably, the lower surfaces of the supporting legs are fixedly provided with protective convex thorns.

In particular, the support legs can be prevented from sliding through the protection convex thorns.

Preferably, the outer surface of the connecting and fixing buckle is provided with a limiting and rotating groove, a second limiting block is movably mounted inside the limiting and rotating groove, a first connecting block is fixedly mounted at the tail end of the second limiting block and fixedly connected with the outer surface of one side of the pedal plate, the rear surface of the connecting and fixing buckle is provided with a threaded through hole, and a fixing knob is movably mounted inside the threaded through hole.

Specifically, mutually support through spacing rotatory recess and second stopper, make first connecting block can be along the rotatory certain angle of spacing rotatory recess to can drive the running-board rotatory to cat ladder one side, fixed knob passes the screw through-hole and contacts with the cat ladder rear surface, can fix the connection fixation knot at the cat ladder surface through frictional force.

Preferably, the outer surfaces of two sides of the pedal are movably provided with connecting hooks, the outer surface of the other side of the pedal is fixedly provided with a second connecting block, and the rear surface of the second connecting block is fixedly provided with a connecting column.

Specifically, can hook on the horizontal pole through the coupling hook, provide certain pulling force for the running-board, make the running-board stably fix in cat ladder positive surface department, the spliced pole can insert inside the fixed orifices to make the running-board both sides can not remove at will, strengthen the stability of running-board.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the cat ladder and the screw thread support column mutually supporting that set up, the position that the rotation adjusting nut can be adjusted and is located screw thread support column surface, thereby adjust the inside length of screw thread support column stretching out spacing recess, screw thread support column stretching out length changes, universal ball can be along with removing, thereby drive the supporting legs and remove, through adjusting supporting legs position, adapt to hollow ground, universal ball mutually supports with the supporting legs, make the supporting legs can be at arbitrary angular rotation, thereby make the supporting legs can laminate with ground mutually all the time, make the cat ladder keep vertical state.

2. Through the connection fixed knot that sets up mutually supporting with the running-board, spacing rotatory recess mutually supports with the second stopper, makes first connecting block can be along the rotatory certain angle of spacing rotatory recess, separates the back with coupling hook and horizontal pole, can drive the running-board rotation to cat ladder one side, avoids influencing the user and scrambles.

Drawings

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

FIG. 2 is a schematic view of the structure of the supporting foot of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a schematic view of a partial structure of the present invention.

In the figure: 1. climbing a ladder; 101. a cross bar; 102. a guardrail; 103. bracing; 104. fixing a ring cable; 105. a fixing hole; 201. a limiting groove; 202. a return spring; 203. a first stopper; 204. a threaded support post; 205. adjusting the nut; 206. a universal ball; 207. supporting legs; 208. protecting the convex thorns; 3. connecting a fixing buckle; 301. a limiting rotary groove; 302. a second limiting block; 303. a first connection block; 304. fixing the knob; 4. a foot pedal; 401. a connecting hook; 402. a second connecting block; 403. connecting columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a current conversion station overhauls and uses cat ladder, includes cat ladder 1, is provided with horizontal pole 101 between the cat ladder 1, and spacing recess 201 has been seted up to 1 lower surface of cat ladder, and the inside fixed mounting of spacing recess 201 has return spring 202, and the first stopper 203 of return spring 202 other end fixedly connected with, and 1 one side surface movable mounting of cat ladder has the fixed knot of connection 3, and horizontal pole 101 top just is located and is provided with running-board 4 between the horizontal pole 101.

In this embodiment, through the universal ball 206 and the supporting legs 207 that set up mutually support, make supporting legs 207 can be rotatory at any angle to make supporting legs 207 can laminate with ground all the time, thereby mutually support with bracing 103, make cat ladder 1 can erect subaerial perpendicularly, and running-board 4 with connect fixed knot 3 mutually support, can be when not using, through connecting fixed knot 3 rotatory to cat ladder 1 one side, avoid influencing the user climbing.

Wherein, in order to realize making the cat ladder keep the purpose of vertical state, this device adopts following technical scheme to realize: the guardrail 102 is fixedly installed on the front surface of the crawling ladder 1 and close to the edge of the upper surface, the inclined struts 103 are movably installed on the outer surfaces of the two sides of the crawling ladder 1, the fixing ring cable 104 is arranged on the front surface of the crawling ladder 1, the fixing holes 105 are formed in the front surface of the crawling ladder 1, the threaded support columns 204 are fixedly installed on the lower surfaces of the first limiting blocks 203, the adjusting nuts 205 are movably sleeved on the outer surfaces of the threaded support columns 204, the universal balls 206 are fixedly installed on the lower surfaces of the threaded support columns 204, the supporting legs 207 are movably installed on the outer surfaces of the universal balls 206, and the protective convex thorns 208 are fixedly installed on the lower surfaces of the supporting legs 207.

The stability of the ladder stand 1 can be improved through the inclined strut 103, the fixing ring cable 104 is sleeved on the outer ring of the converter station, the ladder stand 1 is fixed on one side of the converter station, the pedal plate 4 can be fixed on the front surface of the ladder stand 1 through the fixing hole 105, the return spring 202 can provide certain tensile force for the first limiting block 203, the first limiting block 203 is pulled into the limiting groove 201, the threaded support columns 204 can be clamped through the adjusting nuts 205, the threaded support columns 204 are prevented from completely entering the limiting groove 201, the positions of the threaded support columns 204 on the surface can be adjusted through the rotating adjusting nuts 205, the length of the threaded support columns 204 extending out of the limiting groove 201 is adjusted, the extending length of the threaded support columns 204 is changed, the universal balls 206 can move along with the movement, the support legs 207 are driven to move, the ladder stand 1 can keep a vertical state through adjusting the positions of the support legs 207, the ladder stand 1 can keep a vertical state, and the protection spurs 208 can prevent the support legs 207 from sliding.

Wherein, in order to realize not hindering the purpose of trying to climb, this device adopts following technical scheme to realize: connect fixed 3 surfaces of detaining and seted up spacing rotatory recess 301, the inside movable mounting of spacing rotatory recess 301 has second stopper 302, the terminal fixed mounting of second stopper 302 has first connecting block 303, first connecting block 303 and the outer fixed surface of 4 one sides of running-board are connected, connect fixed 3 rear surfaces of detaining and seted up the screw thread through-hole, the inside movable mounting of screw thread through-hole has fixed knob 304, the outer movable mounting of 4 both sides of running-board has coupling hook 401, the outer fixed surface of 4 opposite sides of running-board has second connecting block 402, surface fixed mounting has spliced pole 403 behind the second connecting block 402.

Mutually support through spacing rotatory recess 301 and second stopper 302, make first connecting block 303 can be along the rotatory certain angle of spacing rotatory recess 301, thereby can drive running-board 4 rotatory to cat ladder 1 one side, fixed knob 304 passes the screw thread through-hole and contacts with cat ladder 1 rear surface, can fix connecting fixed knot 3 at cat ladder 1 surface through frictional force, coupling hook 401 can be hooked on horizontal pole 101, provide certain pulling force for running-board 4, make running-board 4 stable fixation in cat ladder 1 positive surface department, inside spliced pole 403 can insert fixed orifices 105, thereby make running-board 4 both sides can not remove at will, strengthen running-board 4's stability.

The utility model discloses a theory of operation and use flow: need place the device in suitable position when using, the position that is located screw thread support column 204 surface can be adjusted to rotatory adjusting nut 205, thereby adjustment screw thread support column 204 stretches out the inside length of spacing recess 201, screw thread support column 204 stretches out the length and changes, universal ball 206 can be along with removing, thereby drive supporting legs 207 and remove, through adjustment supporting legs 207 position, adapt to hollow ground, universal ball 206 and supporting legs 207 mutually support, make supporting legs 207 can be at arbitrary angular rotation, thereby make supporting legs 207 laminate with ground all the time, make cat ladder 1 can keep vertical state, spacing rotatory recess 301 and second stopper 302 mutually support, make first connecting block 303 can rotate certain angle along spacing rotatory recess 301, after separating coupling hook 401 and horizontal pole 101, can drive running-board 4 and rotate to cat ladder 1 one side, avoid influencing the user climbing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a current conversion station overhauls uses cat ladder, includes cat ladder (1), its characterized in that: be provided with horizontal pole (101) between cat ladder (1), spacing recess (201) have been seted up to cat ladder (1) lower surface, the inside fixed mounting of spacing recess (201) has return spring (202), return spring (202) other end fixedly connected with first stopper (203), cat ladder (1) one side surface movable mounting has the connection to fix and detains (3), horizontal pole (101) top just is located and is provided with running-board (4) between horizontal pole (101).

2. The climbing ladder for overhauling the converter station as recited in claim 1, wherein: the novel ladder stand is characterized in that a guardrail (102) is fixedly arranged on the front surface of the ladder stand (1) and close to the edge position of the upper surface, inclined struts (103) are movably arranged on the outer surfaces of two sides of the ladder stand (1), a fixing ring cable (104) is arranged on the front surface of the ladder stand (1), and a fixing hole (105) is formed in the front surface of the ladder stand (1).

3. The ladder stand for overhauling the converter station as recited in claim 1, wherein: the lower fixed surface of the first limiting block (203) is provided with a threaded supporting column (204), the outer surface of the threaded supporting column (204) is movably sleeved with an adjusting nut (205), the lower fixed surface of the threaded supporting column (204) is provided with a universal ball (206), and the outer surface of the universal ball (206) is movably provided with a supporting leg (207).

4. The ladder stand for overhauling the converter station as recited in claim 3, wherein: the lower surface of the supporting leg (207) is fixedly provided with a protective convex thorn (208).

5. The ladder stand for overhauling the converter station as recited in claim 1, wherein: connect fixed knot (3) surface and seted up spacing rotatory recess (301), the inside movable mounting of spacing rotatory recess (301) has second stopper (302), the terminal fixed mounting of second stopper (302) has first connecting block (303), first connecting block (303) and running-board (4) one side surface fixed connection, connect fixed knot (3) rear surface and seted up the screw thread through-hole, the inside movable mounting of screw thread through-hole has fixed knob (304).

6. The climbing ladder for overhauling the converter station as recited in claim 1, wherein: the outer surface of two sides of the pedal plate (4) is movably provided with a connecting hook (401), the outer surface of the other side of the pedal plate (4) is fixedly provided with a second connecting block (402), and the rear surface of the second connecting block (402) is fixedly provided with a connecting column (403).