CN219081473U - Folding hard ladder for overhauling draft tube - Google Patents

Abstract

The utility model discloses a folding hard ladder for overhauling a draft tube, which comprises a folding ladder body, wherein the folding ladder body is arranged in the draft tube body, the folding ladder body comprises a turning riveting straight ladder and seven folding connecting ladders, two sides of the top end of the turning riveting straight ladder are fixedly provided with hooks through welding, the bottom end of the turning riveting straight ladder is rotationally connected with one folding connecting body through a rotating connecting plate, a plurality of adjacent folding connecting ladders are rotationally connected through the rotating connecting plate, a plurality of adjustable brackets are fixedly arranged on the folding ladder body, and a switch-type magnetic seat is fixedly arranged on each adjustable bracket.

Description

Folding hard ladder for overhauling draft tube

Technical Field

The utility model relates to the technical field of maintenance of a draft tube of a hydropower station, in particular to a folding hard ladder for maintenance of the draft tube.

Background

In the past, when the draft tube is overhauled in the hydropower industry, after the water in the draft tube is emptied, the draft tube is moved in and out from top to bottom by using the rope ladder. The rope ladder has the advantages that the rope ladder is convenient and fast to use, the rope ladder is fixed at the entrance, and can enter the draft tube for operation by being matched with the safety belt and the anti-falling device, however, the following defects exist in the rope ladder overhaul work: the requirements on the physical quality of personnel are higher, if the balance is not mastered in the up-down process, the rope ladder can rotate, which is an unavoidable phenomenon brought by the characteristics of the rope ladder, and the personnel are easy to hurt, so that the folding hard ladder for overhauling the draft tube is provided.

Disclosure of Invention

The utility model aims to provide a folding hard ladder for overhauling a draft tube, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a folding hard ladder for draft tube overhauls, includes folding ladder body, inside draft tube body was arranged in to folding ladder body, folding ladder body includes one turns over and rivets straight ladder and seven folding connection ladders, turn over and rivet straight ladder top both sides and all have the couple through welding fixed mounting, turn over and rivet straight ladder bottom and one of them folding connector and rotate through rotating the connecting plate and be connected, a plurality of adjacencies pass through between the folding connection ladder rotate the connecting plate and connect, fixed mounting has a plurality of adjustable supports on the folding ladder body, fixed mounting has switch type magnetic seat on the adjustable support, a plurality of folding connection ladder top both sides of tail end all have the bracing piece through bolt fixed mounting.

Preferably, the adjustable support comprises a sliding clamping piece and a sliding plate, wherein the sliding clamping piece is clamped on the folding ladder body and is in sliding connection with the folding ladder body, the sliding plate is connected to the side wall of the sliding clamping piece in a sliding manner, and fixing holes for fixing are formed in the sliding clamping piece and the sliding plate.

Preferably, the switch-type magnetic seat is fixedly arranged on the outer wall of the sliding plate, and the switch-type magnetic seat is a knob-type magnetic seat; the folding hard ladder can be connected with the inner wall of the pipeline by rotating the knob.

Preferably, the folding ladder body is made of aluminum alloy materials.

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

according to the utility model, the folding ladder body is arranged in the draft tube body, so that the folding ladder body is erected in the periodic scheduled maintenance work with longer time, the maintenance work is very obvious in convenience on the basis, the physical consumption of personnel is reduced, more physical power can be reserved in the work in the draft tube, the work efficiency is improved, the folding ladder is of a hard ladder structure design, the rotating risk of the rope ladder is radically avoided, the potential safety hazard is reduced, and because of the hardness of materials, the personnel can borrow force in the up-down process, the physical consumption is less, and the use is convenient.

Drawings

FIG. 1 is a schematic view of the use scene structure of the draft tube body and the folding ladder of the present utility model;

FIG. 2 is a schematic view of a folding ladder body according to the present utility model;

FIG. 3 is an enlarged schematic view of the area A of FIG. 2 according to the present utility model;

FIG. 4 is an enlarged schematic view of the area B of FIG. 2 according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of the area C of FIG. 2 according to the present utility model;

fig. 6 is a schematic view showing a folding state of the folding ladder body of the present utility model.

In the figure: 1. a draft tube body; 2. a folding ladder body; 201. turning over and riveting a straight ladder; 202. folding the connecting ladder; 3. a hook; 4. an adjustable bracket; 401. a sliding clip; 402. a sliding plate; 5. rotating the connecting plate; 6. a support rod; 7. a switch type magnetic seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a folding hard ladder for draft tube overhauls, including folding ladder body 2, inside draft tube body 1 is arranged in to folding ladder body 2, folding ladder body 2 includes that one turns over and rivets straight ladder 201 and seven folding connection ladder 202, turn over and rivet straight ladder 201 top both sides and all have couple 3 through welding fixed mounting, can hang on the hung pole of draft tube through couple 3 that sets up, thereby can't play around, turn over and rivet straight ladder 201 bottom and one of them folding connection body and rotate through rotating connecting plate 5 and be connected, rotate through rotating connecting plate 5 between a plurality of adjacent folding connection ladder 202 and connect, thereby can guarantee the folding effect of rotation point, fixed mounting has a plurality of adjustable supports 4 on the folding ladder body 2, fixed mounting has switch type magnetic seat 7 on the adjustable support 4, a plurality of folding connection ladder 202 top both sides of tail end all have bracing piece 6 through bolt fixed mounting.

In this embodiment, the adjustable support 4 includes a sliding clamping member 401 and a sliding plate 402, the sliding clamping member 401 is clamped on the folding ladder body 2 and is slidably connected with the folding ladder body 2, the sliding plate 402 is slidably connected on the side wall of the sliding clamping member 401, and fixing holes for fixing are formed in the sliding clamping member 401 and the sliding plate 402.

In this embodiment, the switch-type magnetic base 7 is fixedly installed on the outer wall of the sliding plate 402, and the switch-type magnetic base 7 is a knob-type magnetic base; the folding hard ladder can be connected with the inner wall of the pipeline by rotating the knob.

The inner wall of the draft tube is concave, the different heights are inconsistent with the transverse distance of the inner wall of the draft tube, so the length of the transverse support can be adjusted through the structural design of the adjustable support 4, the support end section close to the inner wall is provided with the switch type magnetic seat 7, when personnel enter for the first time, the knob is sequentially switched from top to bottom, magnetic force adsorption is completed through the switch type magnetic seat 7, a ladder is magnetically connected with the inner wall of the draft tube, a good fixing effect is achieved, and the ladder is prevented from shaking or moving.

Further, in order to reduce the overall weight of the folding ladder, the folding ladder body 2 is made of an aluminum alloy material, and has lighter weight under the condition of higher strength.

When the folding ladder is used, the hooks 3 of the folding ladder body 2 are hung on the hanging rod of the draft tube, so that the ladder cannot move forwards and backwards, at the moment, the folding connection ladder 202 of the folding ladder body 2 is paved inside the draft tube body 1 according to the radian of the draft tube body 1, meanwhile, the switch type magnetic seat 7 of the adjustable bracket 4 is opened, the folding ladder body 2 is fixedly adsorbed by virtue of magnetic force, the ladder is prevented from shaking, and then the folding connection ladder can enter the draft tube for operation by being matched with a safety belt and a falling protector;

according to the utility model, the folding ladder body 2 is arranged in the draft tube body 1, so that in the long-time periodic scheduled maintenance work, the working convenience is effectively improved by paving the folding ladder body 2, the physical power consumption of personnel is reduced, more physical power can be reserved in the work in the draft tube, the working efficiency is improved, the folding ladder is of a hard ladder structure design, the rotating risk of the rope ladder is fundamentally eliminated, the potential safety hazard is reduced, and because of the hardness of materials, the personnel can borrow force in the up-down process, the physical power consumption is less, the folding ladder is convenient to use, and meanwhile, when the folding ladder is not paved, the folding ladder can be folded and stored (as shown in fig. 6), and the space occupation rate is reduced.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

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

Claims (4)

1. A folding hard ladder for draft tube overhauls, its characterized in that includes folding ladder body (2), inside draft tube body (1) is arranged in to folding ladder body (2), folding ladder body (2) are including a turn over and rivet straight ladder (201) and a plurality of folding ladder (202) of connecting, turn over and rivet straight ladder (201) top both sides and all have couple (3) through welded fastening, turn over and rivet straight ladder (201) bottom and folding ladder (202) and rotate through rotating connecting plate (5) and be connected, a plurality of adjacent through rotating connecting plate (5) rotate between folding ladder (202) and be connected, fixed mounting has a plurality of adjustable supports (4) on folding ladder body (2), fixed mounting has on adjustable support (4) switch type magnetic seat (7), a plurality of folding ladder (202) top both sides of tail end all have bracing piece (6) through bolt fastening.

2. A folding hard ladder for draft tube service according to claim 1, wherein: the adjustable support (4) comprises a sliding clamping piece (401) and a sliding plate (402), wherein the sliding clamping piece (401) is clamped on the folding ladder body (2) and is connected with the folding ladder body (2) in a sliding mode, the sliding plate (402) is connected to the side wall of the sliding clamping piece (401) in a sliding mode, and fixing holes used for fixing are formed in the sliding clamping piece (401) and the sliding plate (402).

3. A folding hard ladder for draft tube service according to claim 2, wherein: the switch type magnetic seat (7) is fixedly arranged on the outer wall of the sliding plate (402), and the switch type magnetic seat (7) is a knob type magnetic seat; the folding hard ladder can be connected with the inner wall of the pipeline by rotating the knob.

4. A folding hard ladder for draft tube service according to claim 1, wherein: the folding ladder body (2) is made of aluminum alloy materials.

Images