Liftable excavation trolley

Abstract

The invention discloses a liftable excavation trolley which comprises main frames, an inclined strut support and a fixed support, the inclined strut support is arranged between the main frames, the fixed support is fixedly connected with a movable support, the movable support is connected with a telescopic beam, the telescopic beam is provided with a turnover platform, and the turnover platform is movably connected with the movable support. An additional platform is further arranged on the telescopic beam. By additionally arranging the hydraulic system, accurate positioning and rapid lifting of the trolley can be achieved, manual adjusting time is shortened, compared with a traditional trolley, the construction period can be shortened by about 20%-30%, and the trolley is particularly suitable for tunnel engineering with complex geology or variable sections; the trolley can adapt to different section heights and complex geological conditions, the equipment replacement frequency is reduced, a low-energy-consumption driving system is adopted, carbon emission is reduced, the engineering adaptability is improved, the green construction standard is assisted to reach the standard, and the influence on surrounding ecology is reduced.

Description

Technical Field

[0001] This invention belongs to the field of highway tunnel technology, and specifically relates to a liftable excavation trolley. Background Technology

[0002] In tunnel construction, excavation trolleys are frequently used to meet the needs of drilling blast holes, installing steel arch frames, and spraying concrete under different construction conditions. Traditional excavation trolleys have a fixed height, which cannot meet the excavation requirements of different tunnels. During construction, the height requirements of the excavation trolley will also be different as the tunnel cross-section and construction methods change. Replacing or remanufacturing excavation trolleys of other heights is time-consuming, delays the construction period, and increases expenses. Therefore, there is an urgent need for an adjustable-height lifting excavation trolley. Summary of the Invention

[0003] The main objective of this invention is to provide a liftable excavation trolley, which solves the problem that the existing excavation trolleys have a fixed height and cannot meet the construction requirements of different tunnel cross sections.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a liftable excavation trolley, comprising a main frame, a diagonal brace and a fixed support, the diagonal brace being provided between the main frames, a movable support being fixedly connected to the fixed support, a telescopic beam being connected to the movable support, a tilting platform being provided on the telescopic beam, the tilting platform being movably connected to the movable support, and an additional platform being provided on the telescopic beam.

[0005] Furthermore, the movable support is movably connected to the flipping platform via a pin, and a locking structure is provided between the flipping platform and the movable support.

[0006] Furthermore, the main frame, diagonal brace, and fixed bracket are all made of rectangular square steel.

[0007] Furthermore, the movable support is made by processing telescopic square tubes nested within square tubes.

[0008] Furthermore, the main frame is provided with rollers at its bottom, and the rollers are equipped with foot brakes.

[0009] Furthermore, a hydraulic system is also provided at the bottom of the main frame.

[0010] Furthermore, this device is also equipped with a high-pressure air and water pipe connector.

[0011] Furthermore, the device has three layers, each with a steel mesh walkway, and stairs connecting each layer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By adding a hydraulic system, this invention can achieve precise positioning and rapid lifting of the trolley, reducing manual adjustment time. Compared with traditional trolleys, the construction cycle can be shortened by about 20% to 30%, which is especially suitable for tunnel projects with complex geology or variable cross-sections.

[0014] 2. This invention uses lightweight, high-strength materials to enhance the stability and deformation resistance of the trolley, reducing accidents;

[0015] 3. This invention can adapt to different cross-sectional heights and complex geological conditions, reduce the frequency of equipment replacement, adopt a low-energy drive system, reduce carbon emissions, improve engineering adaptability, help meet green construction standards, and reduce the impact on the surrounding ecology. Attached Figure Description

[0016] Figure 1 This is a front view of a liftable excavation trolley according to the present invention;

[0017] Figure 2 This is a side view of a liftable excavation trolley according to the present invention;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Main frame; 2. Diagonal brace; 3. Fixed support; 4. Movable support; 5. Rollers; 6. Stairs; 7. Tilting platform; 8. Additional platform; 9. Telescopic beam; 10. Main platform. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] See Figure 1 , Figure 2 and Figure 3This invention discloses a liftable excavation trolley, comprising a main frame 1, diagonal bracing supports 2, and fixed supports 3. The diagonal bracing supports 2 are installed between the main frames 1 to increase the stability of the trolley. The main frame 1, diagonal bracing supports 2, and fixed supports 3 are all made of rectangular square steel. By using lightweight, high-strength materials, the stability and deformation resistance of the trolley are enhanced, reducing the occurrence of accidents. Furthermore, a movable support 4 is fixedly connected to the fixed support 3. Specifically, the movable support 4 is made of telescopic square tubing nested within square tubing. Furthermore, the trolley has three layers, each with a steel mesh walkway for easy movement of construction personnel. Furthermore, stairs 6 are provided between each layer for easy access for construction personnel.

[0022] Further, see Figure 3 The movable support 4 is connected to a telescopic beam 9, and a tilting platform 7 is mounted on the telescopic beam 9. The tilting platform 7 and the movable support 4 are movably connected. Specifically, the movable support 4 is movably connected to the tilting platform 7 via a pin. Preferably, a locking structure is provided between the tilting platform 7 and the movable support 4, so that the position of the tilting platform 7 can be fixed by the locking structure after the tilting platform 7 is tilted. Furthermore, an additional platform 8 is also provided on the telescopic beam 9, which can meet the requirements of the working platform under different construction conditions.

[0023] Furthermore, the bottom of the main frame 1 is equipped with rollers 5, which allow the vehicle to be moved to different locations for construction. Additionally, the rollers 5 are equipped with foot brakes, which can be used to fix the position of the rollers 5 when the vehicle is moved to a suitable position.

[0024] Furthermore, a hydraulic system is also installed at the bottom of the main frame 1, which can control the lifting and lowering of the entire trolley to meet the construction requirements at different heights.

[0025] Since the trolley is lifted and moved by the loader's bucket, reinforcement measures are taken in the middle of the first-layer crossbeam of the trolley. Specifically, rectangular square steel tubes, 100cm long and 200cm wide, can be welded into a "well" shape for reinforcement. Furthermore, to facilitate drilling and blasting operations, high-pressure air and water pipe joints are also installed on the trolley, welded to the front and back sides of the vertical main beam and the first-layer horizontal main beam respectively. Water pipes are welded to the front, and air pipes are welded to the back. Each side of the air and water pipes is equipped with one main joint and ten auxiliary joints. The main joint of the air pipe is equipped with a valve to connect to the main air pipe, and the main joint of the water pipe is also equipped with a valve to connect to the main water pipe. Preferably, all auxiliary joints use PN16-20 type valves, which can adapt to various cross-section excavation requirements.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liftable excavation trolley, characterized in that: It includes a main frame (1), diagonal bracing (2) and fixed support (3). Diagonal bracing (2) is provided between the main frames (1). A movable support (4) is fixedly connected to the fixed support (3). A telescopic beam (9) is connected to the movable support (4). A flipping platform (7) is provided on the telescopic beam (9). The flipping platform (7) and the movable support (4) are movably connected. An additional platform (8) is also provided on the telescopic beam (9).

2. The liftable excavation trolley according to claim 1, characterized in that: The movable support (4) is movably connected to the flipping platform (7) via a pin, and a locking structure is provided between the flipping platform (7) and the movable support (4).

3. The liftable excavation trolley according to claim 1, characterized in that: The main frame (1), diagonal brace (2) and fixed bracket (3) are all made of rectangular square steel.

4. The liftable excavation trolley according to claim 1, characterized in that: The movable support (4) is made by processing a telescopic square tube nested within a square tube.

5. The liftable excavation trolley according to claim 1, characterized in that: The main frame (1) is provided with a roller (5) at the bottom, and a foot brake is provided on the roller (5).

6. The liftable excavation trolley according to claim 1, characterized in that: A hydraulic system is also provided at the bottom of the main frame (1).

7. The liftable excavation trolley according to claim 1, characterized in that: This device is also equipped with a high-pressure air and water pipe connector.

8. The liftable excavation trolley according to claim 1, characterized in that: The device has three layers, each with a steel mesh walkway and a staircase between each layer (6).

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