CN217022712U

CN217022712U - Ladder stand device

Info

Publication number: CN217022712U
Application number: CN202220104134.8U
Authority: CN
Inventors: 赵鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-07-22
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the technical field of carrying equipment, and provides a ladder climbing device which comprises an outer frame, an inner frame, a horizontal driving device and at least one jacking assembly, wherein a front supporting body is arranged on one side of the bottom of the outer frame, a rear supporting body is arranged on the other side of the bottom of the outer frame, and a height difference is formed between the front supporting body and the rear supporting body; the inner frame is movably connected with the outer frame; the horizontal driving device is arranged on the outer frame or the inner frame; the outer frame and the inner frame are connected through a horizontal driving device, and the horizontal driving device is used for driving the outer frame or the inner frame to move along the horizontal direction; the jacking assembly comprises a supporting block and a lifting device; the supporting shoe is located the internal frame below, links to each other through elevating gear between supporting shoe and the internal frame, and elevating gear is used for driving the supporting shoe along vertical direction motion. The stair climbing device can climb a load on a stair, effectively reduces the labor intensity and the labor cost of workers, and improves the carrying efficiency and the safety and the reliability in the carrying process.

Description

Ladder stand device

Technical Field

The utility model relates to the technical field of carrying equipment, in particular to a ladder climbing device.

Background

In real life, heavy objects are often carried upstairs. In a place with only stairs and no elevator, multiple persons are often required to cooperate to convey heavy objects upstairs, for example, in a project of modifying and installing an elevator in an old community, multiple persons are often required to cooperate to convey a heavy tractor upstairs.

However, the manual transportation mode has the disadvantages of high labor intensity, low transportation efficiency and high labor cost, and meanwhile, the whole transportation process is greatly influenced by human factors, so that safety accidents can be caused by slight carelessness, and the risk is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ladder climbing device which is used for solving various defects existing in the prior art when heavy objects are carried upstairs manually.

The embodiment of the utility model is realized by the following technical scheme:

a ladder climbing device comprising:

the device comprises an outer frame, wherein a front support body is arranged on one side of the bottom of the outer frame, a rear support body is arranged on the other side of the bottom of the outer frame, and a height difference is formed between the front support body and the rear support body; and (c) a second step of,

the inner frame is movably connected with the outer frame; and (c) a second step of,

the horizontal driving device is arranged on the outer frame or the inner frame; the outer frame and the inner frame are connected through the horizontal driving device, and the horizontal driving device is used for driving the outer frame or the inner frame to move along the horizontal direction;

the jacking assembly comprises a supporting block and a lifting device; the supporting block is arranged below the inner frame, the supporting block is connected with the inner frame through the lifting device, and the lifting device is used for driving the supporting block to move along the vertical direction.

Optionally, the front telescopic assembly is in one-to-one correspondence with the front support body, the front telescopic assembly comprises a front telescopic driving device and a front roller, the front telescopic driving device is connected with the front support body or the outer frame, and the front telescopic driving device is used for driving the front roller to move along the vertical direction.

Furthermore, a front limit switch is arranged on the front support body and is connected with the front support body in a sliding mode.

Optionally, still include with the back flexible subassembly of back supporter one-to-one, back flexible subassembly includes back flexible drive arrangement and back gyro wheel, back flexible drive arrangement with back supporter or outer frame links to each other, back flexible drive arrangement is used for the drive back gyro wheel moves along vertical direction.

Furthermore, a rear limit switch is arranged on the rear supporting body and is connected with the rear supporting body in a sliding mode.

Optionally, a bearing plate is arranged above the inner frame, the bearing plate is fixedly connected with the outer frame or the inner frame, and a mounting hole is formed in the bearing plate.

Optionally, a slide way is arranged on the outer frame, the slide way is parallel to the moving direction of the ladder climbing device, and a moving wheel capable of freely rolling in the slide way is arranged on the inner frame.

Further, the slide sets up in on the inside wall of outer frame, the inner frame is located the inside of outer frame.

Optionally, the number of the jacking assemblies is two, and the two jacking assemblies are arranged oppositely.

Optionally, the inner frame and the outer frame are provided with angle sensors.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

the ladder climbing device provided by the utility model can realize climbing of a load on a stair, effectively reduces the labor intensity and labor cost of workers, and improves the carrying efficiency and the safety and reliability in the carrying process. Simultaneously, at whole climbing in-process, outer frame and internal frame remain the horizontality throughout, and can make the heavy object of placing on the loading board be in the horizontality all the time under each bearing structure's synergism, and the focus of heavy object can not take place the skew, and then further guarantees the stability at the in-process heavy object of climbing stair, reduces the risk that the incident appears.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an outer frame and an inner frame provided by an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a ladder climbing device provided in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a carrier plate according to an embodiment of the present invention;

fig. 4 is a schematic view of a ladder climbing device provided by an embodiment of the utility model in a state of moving on a horizontal bottom surface;

figure 5 is a schematic view of a ladder climbing device according to an embodiment of the present invention fully climbing a staircase;

fig. 6 is a schematic diagram of a first step of climbing stairs according to the ladder climbing device provided by the embodiment of the utility model.

Fig. 7 is a schematic diagram of a second step of the ladder climbing device provided by the embodiment of the utility model when climbing stairs.

An icon: 1-outer frame, 101-slideway, 2-inner frame, 201-fixed beam, 3-horizontal driving device, 4-jacking assembly, 401-supporting block, 402-lifting device, 5-front telescopic assembly, 501-front telescopic driving device, 502-front roller, 6-rear telescopic assembly, 601-rear telescopic driving device, 602-rear roller, 7-bearing plate, 701-mounting hole, 8-front supporting body, 9-rear supporting body, 10-moving wheel, 11-electric control box, 12-front limit switch, 13-rear limit switch and 14-angle sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when products of this application are used, the description is merely for convenience of description and simplification, but the terms do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or 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.

Examples

This embodiment provides a cat ladder device for the realization goes upstairs with the heavy object transport, with reduction artifical intensity of labour, improves whole handling's security and reliability. The ladder climbing device comprises an outer frame 1, an inner frame 2, a horizontal driving device 3, a jacking assembly 4, a front telescopic assembly 5, a rear telescopic assembly 6 and a bearing plate 7.

Referring to fig. 1, an outer frame 1 is a rectangular frame, a front support 8 is disposed on one side of the bottom of the outer frame 1, and a free end of the front support 8 extends in a vertical direction; the other side of the bottom of the outer frame 1 is provided with a rear support 9, the free end of which rear support 9 also extends in the vertical direction. Meanwhile, the front supporter 8 and the rear supporter 9 have a height difference therebetween, that is, the front supporter 8 and the rear supporter 9 have different lengths, so that the front supporter 8 and the rear supporter 9 can be supported at steps of different heights when climbing stairs, thereby ensuring that the outer frame 1 is always in a horizontal state. In the present embodiment, the height difference between the front supporter 8 and the rear supporter 9 is not less than the height of two steps.

It can be understood that, with continued reference to fig. 1, the number of the front supports 8 provided in the present embodiment is two, and the two front supports 8 are symmetrically provided on one side of the bottom of the outer frame 1; similarly, there are two rear supporting bodies 9, and the two rear supporting bodies 9 are symmetrically arranged at the other side of the bottom of the outer frame 1. Thereby improving reliability when the outer frame 1 is supported by the front and rear supports 8 and 9.

With continued reference to fig. 1, the inner frame 2 is also a frame body having a rectangular structure, and a fixing beam 201 is provided in the middle. Wherein the inner frames 2 are movably connected (i.e. a sliding connection or a rolling connection) to the outer frame 1 such that the inner frames 2 are movable relative to the outer frame 1. It can be understood that the inner side wall of the outer frame 1 of the present embodiment is provided with a slide way 101, and the slide way 101 is parallel to the moving direction of the ladder climbing device; meanwhile, the inner frame 2 is provided with a moving wheel 10 which is matched with the slide way 101 and can be freely rolled in the slide way 101, so that a rolling connection structure is formed between the inner frame 2 and the outer frame 1, and the friction force between the inner frame 2 and the outer frame 1 is reduced.

With continued reference to fig. 1, the inner frame 2 of the present embodiment is disposed inside the outer frame 1, that is, when the slide 101 is disposed on the inner sidewall of the outer frame 1 and the moving wheels 10 are disposed on the outer sidewall of the inner frame 2, thereby making the ladder device more compact. Meanwhile, an electric cabinet 11 is further provided at the bottom of the fixed beam 201 of the inner frame 2 to control various power devices of the ladder stand device to work through a control device in the electric cabinet 11.

The horizontal drive device 3 may be provided on the outer frame 1 or the inner frame 2. Meanwhile, the outer frame 1 and the inner frame 2 are connected through the horizontal driving device 3, the outer frame 1 or the inner frame 2 can be driven to move along the horizontal direction by reasonably controlling the extension or contraction of a telescopic rod of the horizontal driving device 3, and the outer frame 1 or the inner frame 2 is always kept in a horizontal state in the moving process. When the horizontal driving device 3 is arranged on the outer frame 1, the output end of the horizontal driving device 3 extends along the horizontal direction and then is fixedly connected with the inner frame 2; when the horizontal driving device 3 is disposed on the inner frame 2, the output end of the horizontal driving device 3 extends along the horizontal direction and is then fixedly connected with the outer frame 1.

It should be noted that the horizontal driving device 3 of the present embodiment is electrically connected to the control device in the electric cabinet 11, so as to control the operation of the horizontal driving device 3 through the control device in the electric cabinet 11. The horizontal driving device 3 can be, but is not limited to, a conventional linear driving device, such as a hydraulic cylinder, an air cylinder, or an electric push rod, etc., and the specific type of the horizontal driving device 3 is not particularly limited herein.

The jacking assembly 4 is used for jacking the outer frame 1 and the inner frame 2 to a certain height so as to climb the stairs. Wherein, at least one jacking component 4 is arranged; referring to fig. 2, the jacking assembly 4 includes a supporting block 401 and a lifting device 402. The supporting block 401 is disposed under the inner frame 2, the supporting block 401 is connected to the inner frame 2 by a lifting device 402, and the lifting device 402 is configured to drive the supporting block 401 to move in a vertical direction.

It can be understood that, when jacking subassembly 4 only set up one, the position that jacking subassembly 4 was located this moment should be corresponding with the focus position of internal frame 2 to make at the in-process of climbing stair, jacking subassembly 4 can be better support internal frame 2, avoid the skew of focus, improve the reliability of climbing process. When jacking subassembly 4 was provided with two, two 4 symmetries of jacking subassembly set up interior frame 2 below both sides this moment to better provide the holding power for interior frame 2, further avoid the barycenter to squint.

It should be noted that, the lifting device 402 of this embodiment adopts the scissor-type lifting bracket with stable movement process and large output torque to further improve the stability when the inner frame 2 and the outer frame 1 are jacked up by the jacking assembly 4, and the hydraulic cylinders in the scissor-type lifting bracket are also electrically connected with the control device in the electric cabinet 11, so as to control the hydraulic cylinders of the scissor-type lifting bracket to work through the control device in the electric cabinet 11.

On the other hand, in order to further improve the practicability of the ladder climbing device, the ladder climbing device is also provided with a front telescopic assembly 5 and a rear telescopic assembly 6. Wherein, the front telescopic components 5 correspond to the front supporting bodies 8 one by one, and the rear telescopic components 6 correspond to the rear supporting bodies 9 one by one.

Specifically, with continued reference to fig. 2, the front telescopic assembly 5 includes a front telescopic driving device 501 and a front roller 502, the front telescopic driving device 501 may be disposed on the front support 8 or on the outer frame 1, and an output end of the front telescopic driving device 501 extends in the vertical direction and then is connected to the front roller 502, so that the front roller 502 is driven by the front telescopic driving device 501 to move in the vertical direction. Similarly, the rear telescopic assembly 6 includes a rear telescopic driving device 601 and a rear roller 602, the rear telescopic driving device 601 may be disposed on the rear support 9 or on the outer frame 1, and an output end of the rear telescopic driving device 601 extends in the vertical direction and then is connected to the rear roller 602, so that the rear roller 602 is driven to move in the vertical direction by the rear telescopic driving device 601.

The front telescopic driving device 501 and the rear telescopic driving device 601 are electrically connected to a control device in the electric cabinet 11, so that the control device in the electric cabinet 11 controls the front telescopic driving device 501 and the rear telescopic driving device 601 to operate. The front telescopic driving device 501 and the rear telescopic driving device 601 may be all of conventional linear driving devices such as a hydraulic cylinder, an air cylinder or an electric push rod, and the specific types of the front telescopic driving device 501 and the rear telescopic driving device 601 are not limited herein. Meanwhile, the front roller 502 and the rear roller 602 can adopt universal self-locking wheels which are flexible in movement and convenient to fix, so that the universal self-locking wheels can be flexibly adjusted according to needs.

In addition, a front limit switch 12 is arranged on the front support 8, and the front limit switch 12 is connected with the front support 8 in a sliding manner, at this time, the front limit switch 12 can slide and be fixed along the length direction of the front support 8, so as to adjust the position of the front limit switch 12 in the vertical direction. Similarly, a rear limit switch 13 is arranged on the rear support 9, and the rear limit switch 13 is connected with the rear support 9 in a sliding manner, at this time, the rear limit switch 13 can slide and be fixed along the length direction of the rear support 9, so as to adjust the position of the rear limit switch 13 in the vertical direction. In actual use of the ladder climbing device, the positions of the front limit switch 12 and the rear limit switch 13 are adjusted according to the parameters of the stairs, so that the movement strokes of the front telescopic driving device 501 and the rear telescopic driving device 601 can be adjusted.

Through the arrangement of the front telescopic component 5 and the rear telescopic component 6, in the practical application process, the front roller 502 and the rear roller 602 can be adjusted to be in the same horizontal plane, so that heavy objects can be conveniently transported on the horizontal ground by using the ladder stand device. On the contrary, a certain height difference can be formed by adjusting the heights of the front roller 502 and the rear roller 602, and at the moment, the front roller 502 and the rear roller 602 respectively replace the front support body 8 and the rear support body 9 to serve as support structures to support the outer frame 1, so that the height difference between the front roller 502 and the rear roller 602 can be reasonably adjusted according to the step height, and the requirement of climbing stairs with different step heights can be met.

As for the carrying floor 7, the carrying floor 7 is used for carrying a weight and is located above the inner frame 2. In practical implementation, the carrier plate 7 can be fixedly connected to both the outer frame 1 and the inner frame 2. For convenience of description, the present embodiment will be described with the carrier plate 7 being fixedly connected to the outer frame 1, wherein each corner of the carrier plate 7 is fixedly connected to each corner of the outer frame 1 through a connector. Meanwhile, referring to fig. 3, a plurality of mounting holes 701 are further formed in the bearing plate 7, and the plurality of mounting holes 701 are distributed in an array on the bearing plate 7, so that after a weight is placed on the bearing plate 7, components such as a rope for fixing the weight can pass through the corresponding mounting holes 701 to assist in fixing the weight.

It should be noted that, in practical implementation, an angle sensor 14 may be additionally arranged on the inner frame 2 and the outer frame 1, so as to determine the posture of the whole ladder climbing device through the angle sensor 14, and ensure that a heavy object placed on the bearing plate 7 is in a horizontal state. Similarly, the angle sensor 14 is also electrically connected to the control device in the electric cabinet 11, so as to obtain the angle information sent by the angle sensor 14 and determine the posture of the ladder climbing device through the control device in the electric cabinet 11, and timely control the front telescopic driving device 501 or the rear telescopic driving device 601 to operate when the ladder climbing device is not in the horizontal state, so that the loading plate 7 of the ladder climbing device is in the horizontal state.

For example, the angle sensor 14 may be a gyroscope angle sensor in the prior art, and the number and the position of the gyroscope angle sensor are not particularly limited herein.

In order to better understand the ladder climbing device provided by the embodiment, the specific working principle of the ladder climbing device will be further explained below.

The ladder climbing device can be divided into two stages in the actual use process, wherein the first stage is a horizontal ground movement stage, and the second stage is a stair climbing stage.

When the ladder stand device moves on a horizontal ground, please refer to fig. 4, at this time, the supporting blocks 401 of the jacking assemblies 4 are driven by the lifting device 402 to be separated from the ground by a certain distance, the front roller 502 of the front telescopic assembly 5 and the rear roller 602 of the rear telescopic assembly 6 are located in the same horizontal plane, and at this time, the front roller 502 and the rear roller 602 serve as a supporting structure to support the whole ladder stand device, and the front roller 502 and the rear roller 602 are used to drive the whole ladder stand device to move on the horizontal ground.

When the front roller 502 moves to the first step, it begins to enter the stair climbing phase. At this time, it is assumed that the distance by which the outer frame 1 or the inner frame 2 moves once in the horizontal direction is equal to the width of one step; meanwhile, with continued reference to fig. 1, it is assumed that the horizontal driving device 3 is disposed on the fixed beam 201 of the inner frame 2, and the telescopic rod of the horizontal driving device 3 is in an extended state in an initial state.

At the beginning of climbing, the lifting device 402 of the jacking assembly 4 is operated to bring the support blocks 401 into contact with the ground, at which time the support blocks 401 are used as a support structure to support the ladder climbing device. With the continuous operation of the lifting device 402, the outer frame 1 and the inner frame 2 are lifted to a certain height (the height is the same as the height of the step), and the bottom of the front roller 502 and the top of the first step are in the same horizontal plane; based on the supporting blocks 401 as the supporting structure to support the whole ladder stand device, that is, the inner frame 2 is fixed relative to the outer frame 1, the telescopic rod of the horizontal driving device 3 is controlled to contract to drive the outer frame 1 to move forward for a certain distance, the front roller 502 is supported on the top surface of the first step, and the rear roller 602 is supported on the horizontal ground. Subsequently, the lifting device 402 of the jacking assembly 4 retracts the support block 401 to disengage from the ground, at which time the front roller 502 and the rear roller 602 are used as support structures to support the entire ladder climbing device; because the front rollers 502 and the rear rollers 602 are used as supporting structures to support the whole ladder climbing device, that is, the outer frame 1 is fixed relative to the inner frame 2, the inner frame 2 can be driven to move forward for a certain distance by controlling the extension of the telescopic rod of the horizontal driving device 3, so as to drive the jacking assembly 4 to approach the step.

The above steps are repeated until the rear roller 602 climbs onto the first step, referring to fig. 5, at this time, the front roller 502, the supporting block 401 of each jacking assembly 4, and the rear roller 602 correspond to one step respectively, and at this time, the height difference between the front roller 502 and the rear roller 602 meets the subsequent climbing requirement, and no adjustment is needed during the subsequent climbing.

After that, when climbing on the stairs, the climbing of one step is completed in two steps. Firstly, using a supporting block 401 of a jacking component 4 as a support, and jacking an inner frame 2 and an outer frame 1 to the height of a step by using a lifting device 402; then the telescopic rod of the horizontal driving device 3 is controlled to contract to drive the outer frame 1 to move forward along the horizontal direction by the width of one step, at this time, the front roller 502 is supported on the next step, and the rear roller 602 is also supported on the next step, and the state diagram is shown in fig. 6.

Secondly, the front roller 502 and the rear roller 602 are used as supports, so that the supporting blocks 401 of the jacking assemblies 4 are lifted by the height of one step, and then the telescopic rods of the horizontal driving device 3 are controlled to extend to drive the inner frames 2 to move forwards by the height of one step along the horizontal direction, at this time, the supporting blocks 401 of the jacking assemblies 4 respectively correspond to the next step, and the state diagram is shown in fig. 7.

The steps are repeated, so that the ladder climbing device can climb on the stairs, the front roller 502 is adjusted to be in the same horizontal plane with the rear roller 602 again after the last step is climbed, the supporting block 401 is separated from the ground, and the ladder climbing device can continue to move on the horizontal ground.

It should be noted that when the ladder climbing device is provided with only the front support 8 and the rear support 9, and no front telescopic assembly 5 and no rear telescopic assembly 6, climbing on stairs can also be achieved using the climbing principle described above. The difference is that the ladder climbing device cannot move on the horizontal ground at the moment, but the ladder climbing device needs to be placed on a step in advance, the front supporting body 8, the supporting blocks 401 of all the jacking components 4 and the rear supporting body 9 correspond to one step respectively at the moment, and then a heavy object is fixed on the bearing plate 7 to directly start climbing.

Therefore, the cat ladder device that this embodiment provided can realize that the load scrambles on stair, effectively reduces artifical intensity of labour, human cost to improve security and reliability in handling efficiency and the handling. Simultaneously, at whole climbing in-process, outer frame 1 and inner frame 2 remain the horizontality throughout, and can make the heavy object of placing on loading board 7 be in the horizontality all the time under each bearing structure's synergism, and the focus of heavy object can not take place the skew, and then further guarantee at the stability of the in-process heavy object of climbing stair, reduce the risk of incident appearing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ladder stand apparatus comprising:

the device comprises an outer frame, wherein a front support body is arranged on one side of the bottom of the outer frame, a rear support body is arranged on the other side of the bottom of the outer frame, and a height difference is formed between the front support body and the rear support body; and the number of the first and second groups,

the inner frame is movably connected with the outer frame; and the number of the first and second groups,

2. The ladder climbing device according to claim 1, further comprising a front telescopic assembly corresponding to the front support, the front telescopic assembly comprising a front telescopic driving device and a front roller, the front telescopic driving device being connected to the front support or the outer frame, the front telescopic driving device being configured to drive the front roller to move in a vertical direction.

3. The ladder climbing device according to claim 2, wherein a front limit switch is provided on the front support, the front limit switch being slidably connected to the front support.

4. The ladder climbing device according to claim 1, further comprising rear telescoping assemblies in one-to-one correspondence with the rear supports, the rear telescoping assemblies including rear telescoping drives and rear rollers, the rear telescoping drives being connected to the rear supports or the outer frame, the rear telescoping drives being adapted to drive the rear rollers in a vertical direction.

5. The ladder stand device of claim 4 wherein a rear limit switch is provided on the rear support body, the rear limit switch being slidably connected to the rear support body.

6. The ladder climbing device according to claim 1, wherein a carrying plate is provided above the inner frame, the carrying plate being fixedly connected to the outer frame or the inner frame, the carrying plate being provided with mounting holes.

7. A ladder climbing device according to claim 1 characterised in that the outer frame is provided with a slide which is parallel to the direction of movement of the ladder climbing device and the inner frame is provided with a travelling wheel which is free to roll in the slide.

8. The ladder climbing device according to claim 7, wherein the slide is provided on an inner sidewall of the outer frame, and the inner frame is positioned inside the outer frame.

9. The ladder climbing device according to claim 1 wherein the number of the jacking assemblies is two, and the two jacking assemblies are arranged oppositely.

10. The ladder climbing device according to claim 1, wherein angle sensors are provided on the inner frame and the outer frame.