CN204729101U - A kind of foldable lift platform - Google Patents

Abstract

The utility model relates to a kind of foldable lift platform, comprise hoist cylinder, lifting inner sleeve and working platform, described lifting inner sleeve is connected with the piston rod of described hoist cylinder, and described working platform is arranged on the outer wall of lifting inner sleeve collapsibly.The utility model adjustable height is adjustable, work area is large, and the rotation can stretching out frame by swing hydraulic pressure oil cylinder implementation platform is risen and fallen, reduce working platform to take up room, by the folding and unfolding of platform telescopic oil cylinder implementation platform expansion bracket transversal stretching, increase working platform working area, be adapted at narrow space work.The utility model also has design and manufactures the advantages such as easy, structure is simple, supporting capacity is strong, dismounting is simple, easy to maintenance, safe and reliable, application life is long.

Description

A foldable lifting platform

technical field

The utility model relates to the field of lifting platforms, in particular to a foldable lifting platform suitable for narrow roadways such as coal mines.

Background technique

China's energy reserves are in the state of "short of oil, less gas, and rich in coal". According to statistics, coal accounts for more than 70% of China's primary energy consumption for a long time. Although with the rapid growth of China's economy, other new forms of energy However, the consumption of coal continues to increase. It is speculated that by 2020, the proportion of coal in my country's primary energy consumption structure will still be as high as 60%.

According to the development of science and technology in the coal industry and the requirements of my country's industrial policy, since the 1980s, advanced coal mine equipment technology has been widely used in my country's coal mine roadways. However, the limited construction space of coal mine roadways and the harsh working environment have seriously restricted the development of coal-related technologies.

In practice, coal mine roadways sometimes need to be constructed at a higher position, and the working position needs to be adjusted at any time to adapt to the changing working environment, and the space of coal mine roadways is narrow, and the working area of the staff is relatively large. The existing technology cannot solve the above problems well. question.

It can be seen that how to create a coal mine lifting platform with a lifting function, a small footprint and a large working range is one of the current important research and development topics.

Utility model content

The technical problem to be solved by the utility model is to provide a collapsible lifting platform for coal mines, which has a lifting function, occupies a small space, and has a large working range, thereby overcoming the shortcomings of the prior art.

In order to solve the above technical problems, a foldable lifting platform of the present invention includes a lifting cylinder, a lifting inner sleeve and a working platform, the lifting inner sleeve is connected with the piston rod of the lifting cylinder, and the working platform is foldable Installed on the outer wall of the lifting inner sleeve.

As an improvement of the utility model, the lifting cylinder and the lifting inner sleeve are arranged vertically, and the working platform is in the vertical direction in the folded state, and in the horizontal direction in the unfolded state.

The lifting inner sleeve is provided with a mounting plate, and a swing oil cylinder for controlling the folding and unfolding of the working platform is mounted on the mounting plate.

The swing oil cylinder is installed on the mounting plate through bolts.

The working platform is provided with a platform telescopic frame, and is provided with a platform telescopic oil cylinder for controlling the movement of the platform telescopic frame.

The lifting oil cylinder is installed on a frame, and a lifting outer sleeve is also fixed on the frame, and the lifting inner sleeve is located in the lifting outer sleeve and can slide relatively.

Wear-resistant steel is provided on the opposite surface of the lifting inner sleeve and the lifting outer sleeve.

The lifting outer sleeve is fixedly connected with the frame through the bolt holes and bolts provided at the bottom.

The lifting inner sleeve is hinged to the piston rod of the lifting cylinder through a pin.

After adopting such design, the utility model has the following advantages at least:

1. The lifting height of the utility model is adjustable and the working area is large;

2. The structure of the utility model is simple, and the platform extension frame can be retracted and retracted through the hydraulic swing cylinder, which reduces the space occupied by the working platform. Small size, suitable for working in a small space;

3. The utility model has the advantages of simple design and manufacture, simple structure, strong bearing capacity, simple disassembly and assembly, convenient maintenance, safety and reliability;

4. The service life of the utility model is relatively long.

Description of drawings

The above is only an overview of the technical solution of the utility model. In order to better understand the technical means of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a front view of a collapsible lifting platform for coal mines in a contracted state according to the utility model.

Fig. 2 is a top view of a collapsible lifting platform for coal mines in a contracted state according to the utility model.

Fig. 3 is a front view of the unfolded state of a collapsible lifting platform for coal mines of the present invention.

Fig. 4 is a side view of a collapsible lifting platform for coal mines in an unfolded state according to the present invention.

Fig. 5 is a top view of a collapsible lifting platform for coal mines in an unfolded state according to the utility model.

Detailed ways

Please refer to Figures 1 to 5, a foldable lifting platform of the present invention includes a lifting cylinder 3, a lifting inner sleeve 6 and a working platform 4, the lifting inner sleeve 6 is connected with the piston rod of the lifting cylinder 3, and the working The platform 4 is foldably installed on the outer wall of the lifting inner sleeve 6 .

More specifically, the lifting inner sleeve 6 is hinged with the movable piston rod of the lifting cylinder 3 through a pin shaft, the lifting cylinder 3 and the lifting inner sleeve 6 are vertically arranged, and the working platform 4 is in the vertical direction when it is folded. Horizontally in the expanded state. The lifting inner sleeve 6 is provided with a mounting plate 7, and the mounting plate 7 is equipped with a swing oil cylinder 5 that controls the folding and unfolding of the working platform. The swing oil cylinder 5 is installed on the mounting plate 7 by bolts. The working platform 4 can also be provided with a platform telescopic frame 1, and be provided with a platform telescopic oil cylinder controlling the action of the platform telescopic frame 1, and realize the expansion and contraction of the platform telescopic frame 1 through the platform telescopic oil cylinder.

In addition, a frame can also be configured for the utility model, and the lifting oil cylinder 3 is installed on the frame, and a lifting outer sleeve 2 is fixed on the frame, and the lifting inner sleeve 6 is located in the lifting outer sleeve 2, and can Relatively sliding, wear-resistant steel is provided on the opposite surface of the lifting inner sleeve 6 and the lifting outer sleeve 2, so as to realize positioning with the lifting outer sleeve and improve its service life. The lifting inner sleeve 6 slides up and down inside the lifting outer sleeve 2 through the movement of the piston rod of the lifting cylinder 3 to realize height adjustment. The lifting outer sleeve 2 is fixedly connected with the frame through bolt holes and bolts provided at the bottom.

The utility model adopts full hydraulic drive, and the driving device is composed of a lifting oil cylinder, a platform telescopic oil cylinder, a swing oil cylinder and a control valve group. The following is a specific working process of a collapsible lifting platform for coal mines.

When the lifting platform is working, the swing cylinder 5 is rotated to make the platform rotate to a horizontal position, and the piston rod of the lifting cylinder 3 shrinks to the lowest position. The staff stands on the platform, and the piston rod of the lifting cylinder 3 is stretched out to rise to a suitable height. The telescopic frame of the platform 1 Stretch out to increase the working area of the platform. The staff stand on the platform to work, and the height can be adjusted by the lifting cylinder 3 at any time. Swing oil cylinder 5 rotates, and realizes the overall retraction of platform, and platform telescopic frame 1 retracts under the action of platform stretching out oil cylinder simultaneously, and operation is finished.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Those skilled in the art may use the technical content disclosed above to make some simple modifications, equivalent changes or modifications. Within the protection scope of the present utility model.

Claims (9)

1. A foldable lifting platform, characterized in that it includes a lifting cylinder, a lifting inner sleeve and a working platform, the lifting inner sleeve is connected with the piston rod of the lifting cylinder, and the working platform is foldably installed on the Lift the outer wall of the inner sleeve. 2. A foldable lifting platform according to claim 1, characterized in that the lifting cylinder and the lifting inner sleeve are arranged vertically, and the working platform is in the vertical direction when it is in the folded state, and in the vertical direction when it is in the unfolded state. horizontally. 3. A foldable lifting platform according to claim 1, characterized in that a mounting plate is provided on the lifting inner sleeve, and a swing cylinder for controlling the folding and unfolding of the working platform is mounted on the mounting plate. 4. A foldable lifting platform according to claim 3, characterized in that the swing cylinder is mounted on the mounting plate through bolts. 5. A foldable lifting platform according to claim 1, characterized in that the working platform is provided with a platform telescopic frame, and is provided with a platform telescopic oil cylinder for controlling the movement of the platform telescopic frame. 6. A foldable lifting platform according to claim 1, characterized in that the lifting cylinder is installed on the frame, the frame is also fixed with a lifting outer sleeve, and the lifting inner sleeve is located The lifting outer sleeve is inside and can slide relatively. 7. A foldable lifting platform according to claim 6, characterized in that wear-resistant steel is provided on the opposite surface of the lifting inner sleeve and the lifting outer sleeve. 8. A foldable lifting platform according to claim 6, characterized in that the lifting outer sleeve is fixedly connected to the frame through bolt holes and bolts provided at the bottom. 9. A foldable lifting platform according to claim 1, characterized in that the lifting inner sleeve is hinged to the piston rod of the lifting cylinder through a pin.