Ladder device convenient to use

Abstract

The utility model discloses a ladder device convenient to use, which relates to the technical field of ore extraction and comprises two first positioning plates fixedly connected to the opposite surfaces of first supporting plates respectively; the two second positioning plates are fixedly connected to the opposite surfaces of the second supporting plates respectively; the second supporting plate extends to the lower surface of the first supporting plate, the lower surface of the second supporting plate is in sliding contact with the upper surface of the first supporting plate, and the second supporting plate is movably and fixedly connected with the two first positioning plates; the two crawling ladder assemblies are rotationally arranged on the two first positioning plates and the two second positioning plates correspondingly; the utility model has the advantages of convenient use, convenient length adjustment, high flexibility and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ore mining, in particular to a convenient ladder device. Background Art

[0002] In the process of mining, tunnels are usually formed by blasting, which requires drilling holes on the face and placing explosives. The height of the tunnel is much higher than the height of a human body, so workers need to use ladders to complete the construction.

[0003] For example, patent application number CN201822043112.1 discloses a foldable belt pedestrian bridge, which provides connecting slopes at both ends of the bridge plate, and supports are provided at the bottom of the connecting slopes to support the bridge plate on the belt conveyor bracket. The bottom end of the connecting slope is rotatably connected to the top of the pedestrian ladder, and the pedestrian ladder can be rotated and folded to the top of the connecting slope. When no one passes the belt pedestrian bridge on a daily basis, the pedestrian ladders on both sides are rotated to the top of the connecting slope, which does not affect the smooth passage of the monorail crane in the lane; when someone needs to pass the belt pedestrian bridge, the pedestrian ladder is rotated and lowered, and pedestrians can easily pass through the belt pedestrian bridge, which is very convenient. It can be seen that compared with the prior art, the utility model has substantial characteristics and progress, and the beneficial effects of its implementation are also obvious;

[0004] The length of the ladder in the prior art is fixed. During use, since the length cannot be adjusted, when the length is not enough, it is necessary to move the ladder after completing a part of the construction and then proceed to the other parts. This method has complicated operation steps. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a convenient ladder device to solve the problem that the length of the ladder in the prior art described in the background technology cannot be adjusted.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a convenient ladder device, comprising

[0007] A first support plate and a second support plate;

[0008] Two first positioning plates are respectively fixedly connected to opposite back surfaces of the first supporting plate;

[0009] Two second positioning plates are respectively fixedly connected to opposite back surfaces of the second supporting plate;

[0010] The second support plate extends to the lower surface of the first support plate, the lower surface of the second support plate is in sliding contact with the upper surface of the first support plate, and the second support plate is movably fixedly connected to the two first positioning plates;

[0011] Two ladder assemblies are rotatably disposed on the two first positioning plates and the two second positioning plates respectively;

[0012] The ladder assembly includes

[0013] Two connecting plates are rotatably arranged on the two first positioning plates or the two second positioning plates, and a plurality of pedals are arranged between the two connecting plates;

[0014] The two supporting legs are respectively rotatably fixedly connected to the two connecting plates.

[0015] Preferably: a positioning sleeve is fixedly connected to the connecting plate, a rotating column is fixedly connected to the supporting leg, the rotating column passes through the positioning sleeve, a second screw is threadedly connected to the positioning sleeve, and the second screw is used to fix the rotating column in the positioning sleeve.

[0016] Preferably, a ramp plate is provided on the side wall of the first support plate, and a lower surface of the ramp plate is in sliding contact with an upper surface of the second support plate.

[0017] Preferably: a slide rod is fixedly connected to the second positioning plate, a slide hole is provided on the first positioning plate at a position corresponding to the slide rod, the slide rod slides into the slide hole, the slide rod has a plurality of positioning holes, and a first screw rod is threadedly connected to the second positioning plate and extends into the positioning hole.

[0018] Preferably, the front and rear sides of the extended part of the second support plate are respectively provided with limiting plates, and the first positioning plate has a sliding groove at a position corresponding to the limiting plate, and the limiting plate slides into the sliding groove.

[0019] The beneficial effects of adopting the above technical solution are:

[0020] By enabling the second support plate to move relative to the first support plate, the overlapping portion of the first support plate and the second support plate can be released, thereby increasing the surface area of ​​the entire ladder and increasing the length of the entire ladder, making it more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of some parts of a convenient ladder device.

[0022] Figure 2 It is a schematic diagram of the utility model after adjusting the positions of the first support plate and the second support plate.

[0023] Figure 3 This utility model Figure 1 Schematic diagram of some components.

[0024] Figure 4 This is a front view of a convenient ladder device of the utility model.

[0025] Among them: the first support plate 10, the ramp plate 11, the second support plate 20, the limit plate 21, the slide groove 22, the first positioning plate 30, the second positioning plate 31, the slide rod 40, the positioning hole 41, the slide hole 42, the first screw 43, the pedal 50, the connecting plate 51, the insertion rod 60, the insertion hole 61, the locking bolt 62, the support leg 80, the rotating column 81, the positioning sleeve 82, and the second screw 83. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 In the first embodiment, a convenient ladder device includes

[0028] A first support plate 10 and a second support plate 20;

[0029] Two first positioning plates 30 are respectively fixedly connected to opposite back surfaces of the first supporting plate 10;

[0030] Two second positioning plates 31 are respectively fixedly connected to opposite back surfaces of the second supporting plate 20;

[0031] The second support plate 20 extends to the lower surface of the first support plate 10, the lower surface of the second support plate 20 is in sliding contact with the upper surface of the first support plate 10, and the second support plate 20 is movably fixedly connected to the two first positioning plates 30;

[0032] Two ladder assemblies are rotatably arranged on two first positioning plates 30 and two second positioning plates 31 respectively; the ladder assembly includes

[0033] Two connecting plates 51 are rotatably disposed on the two first positioning plates 30 or the two second positioning plates 31, respectively, and a plurality of pedals 50 are disposed between the two connecting plates 51;

[0034] The two supporting legs 80 are rotatably fixedly connected to the two connecting plates 51 .

[0035] This embodiment is implemented as follows:

[0036] When the present application is in use, according to the required use range, the second support plate 20 is moved on the first positioning plate 30, so that the second support plate 20 and the first support plate 10 move relative to each other, thereby reducing the overlap between the first support plate 10 and the second support plate 20, so that the area of ​​the support surface formed by the entire first support plate 10 and the second support plate 20 is increased, and the length of the entire ladder is extended, and then the second support plate 20 is fixed to the first positioning plate 30;

[0037] The ladder assembly on the first positioning plate 30 or the second positioning plate 31 in the present application can be used in a stacked manner, that is, an insertion rod 60 is set at one end of the connecting plate 51, and the insertion rod 60 can be inserted into the insertion hole 61 of the adjacent connecting plate 51, and the insertion rod 60 is fixed in the insertion hole 61 by the locking bolt 62 on the connecting plate 51, thereby increasing the height of the entire ladder.

[0038] The advantage of the present application over the prior art is that the length of the entire ladder can be adjusted.

[0039] See also Figure 4 A positioning sleeve 82 is fixedly connected to the connecting plate 51, a rotating column 81 is fixedly connected to the supporting leg 80, the rotating column 81 passes through the positioning sleeve 82, and a second screw 83 is threadedly connected to the positioning sleeve 82, and the second screw 83 is used to fix the rotating column 81 in the positioning sleeve 82;

[0040] The rotating column 81 in the present application can extend into the positioning sleeve 82 and be fixed in the positioning sleeve 82 by the second screw 83 , and can also make the rotating column 81 rotate in the positioning sleeve 82 to adjust the angle between the support leg 80 and the connecting plate 51 .

[0041] See also Figure 1 , 2 , 3, 4, a ramp plate 11 is provided on the side wall of the first support plate 10, and the lower surface of the ramp plate 11 is in sliding contact with the upper surface of the second support plate 20;

[0042] The ramp plate 11 can prevent workers walking on the first support plate 10 or the second support plate 20 from being knocked down.

[0043] See also Figure 1 , 2 3. A slide rod 40 is fixedly connected to the second positioning plate 31. A slide hole 41 is provided at a position corresponding to the slide rod 40 on the first positioning plate 30. The slide rod 40 slides into the slide hole 42. The slide rod 40 has a plurality of positioning holes 41. A first screw rod 43 extending into the positioning hole 41 is threadedly connected to the second positioning plate 31.

[0044] The distance between the first positioning plate 30 and the second positioning plate 31 can be adjusted by moving the sliding rod 40 in the sliding hole 41, and then the first screw rod 43 is rotated so that the first screw rod 43 enters the positioning hole 41, thereby fixing the positions of the first support plate 10 and the second support plate 20.

[0045] See also Figure 3 The front and rear sides of the extended portion of the second support plate 20 are respectively provided with limiting plates 21, and the position corresponding to the limiting plate 21 on the first positioning plate 30 is provided with a slide groove 22, and the limiting plate 21 slides into the slide groove 22;

[0046] The limiting plate 21 disposed on the second supporting plate 20 slides in the sliding groove 22 of the first positioning plate 30 , thereby increasing the stability of the connection between the second supporting plate 20 and the first positioning plate 30 .

[0047] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A convenient ladder device, characterized in that: include A first support plate and a second support plate; Two first positioning plates are respectively fixedly connected to opposite back surfaces of the first supporting plate; Two second positioning plates are respectively fixedly connected to opposite back surfaces of the second supporting plate; The second support plate extends to the lower surface of the first support plate, the lower surface of the second support plate is in sliding contact with the upper surface of the first support plate, and the second support plate is movably fixedly connected to the two first positioning plates; Two ladder assemblies are rotatably disposed on the two first positioning plates and the two second positioning plates respectively; The ladder assembly includes Two connecting plates are rotatably arranged on the two first positioning plates or the two second positioning plates, and a plurality of pedals are arranged between the two connecting plates; The two supporting legs are respectively rotatably fixedly connected to the two connecting plates.

2. A convenient ladder device according to claim 1, characterized in that: A positioning sleeve is fixedly connected to the connecting plate, a rotating column is fixedly connected to the supporting leg, the rotating column passes through the positioning sleeve, a second screw is threadedly connected to the positioning sleeve, and the second screw is used to fix the rotating column in the positioning sleeve.

3. A convenient ladder device according to claim 1, characterized in that: A ramp plate is provided on the side wall of the first support plate, and the lower surface of the ramp plate is in sliding contact with the upper surface of the second support plate.

4. A convenient ladder device according to claim 1, characterized in that: The second positioning plate is fixedly connected with a slide rod, the first positioning plate has a slide hole at a position corresponding to the slide rod, the slide rod slides into the slide hole, the slide rod has a plurality of positioning holes, and the second positioning plate is threadedly connected with a first screw rod that extends into the positioning hole.

5. A convenient ladder device according to claim 1, characterized in that: The front and rear sides of the extended part of the second support plate are respectively provided with limiting plates, and the position of the first positioning plate corresponding to the limiting plate is provided with a sliding groove, and the limiting plate slides into the sliding groove.

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