Inverted arch material distribution device

Abstract

The utility model discloses an inverted arch material distribution device which comprises a material distribution pump, a pump pipe and inverted arch templates arranged on the two sides of a tunnel, the material distribution pump is located behind the inverted arch templates and communicated with the pump pipe, the pump pipe comprises a first pipe section and a second pipe section, and the first pipe section and the second pipe section are arranged on the inverted arch templates respectively. And a plurality of distribution valves are arranged on the first pipe section and the second pipe section at intervals. The inverted arch material distribution device is simple in structure, convenient to use, low in labor intensity of workers, free of influence on traffic in a tunnel and high in construction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to an invert material placing device. Background Art

[0002] At present, the level of mechanized construction in tunnel construction is getting higher and higher, and the process organization in each area is relatively professional. In the invert concrete filling construction area, the promotion and use of self-propelled invert trestles makes the construction in this area safer and more efficient. The promotion and use of integral invert formworks realizes the rapid construction of inverts, eliminates the assembly and dismantling of formworks, greatly reduces the labor intensity of workers, and improves the efficiency and quality of invert construction. The combination of self-propelled invert trestles and integral invert formworks meets the mechanization, automation, generalization and standardization requirements of tunnel invert construction, improves efficiency and saves costs.

[0003] When pouring concrete for the invert layer and the filling layer, concrete tank trucks are often used in combination with simple chutes. The concrete tank truck stops on the trestle and is connected to the simple chute. Workers adjust the position of the simple chute, and the concrete flows to the position to be poured through the simple chute under the action of gravity. During the concrete pouring process, workers need to constantly adjust the position of the concrete tank truck and the chute, and the concrete pouring process is all done manually. The operating environment of the personnel is very bad, which will affect the health of the workers. At the same time, the efficiency of manual operation is low and the construction speed is slow. In particular, when the concrete tank truck is pouring, the trestle is a single-lane road and has limited carrying capacity. It cannot meet the needs of other engineering vehicles and construction equipment passing through the trestle at the same time, affecting the smooth construction of other areas; at the same time, only one concrete tank truck can be parked on the trestle each time it is poured, and multiple tank trucks cannot be poured at the same time, and the overall pouring time is long. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an inverted arch material placing device which has the advantages of simple structure, convenient use, low labor intensity for workers, no influence on the traffic in the tunnel and high construction efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An inverted arch material distribution device comprises a material distribution pump, a pump pipe and an inverted arch formwork arranged on both sides of a tunnel, wherein the material distribution pump is located behind the inverted arch formwork and is connected to the pump pipe, the pump pipe comprises a first pipe section and a second pipe section, the first pipe section and the second pipe section are respectively arranged on the inverted arch formwork, and a plurality of material distribution valves are arranged on the first pipe section and the second pipe section at intervals.

[0007] As a further improvement of the above technical solution: the pump pipe also includes a connecting pipe section, the rear end of the first pipe section is connected to the material distribution pump and the front end is connected to the second pipe section through the connecting pipe section, and a first stop valve is provided at the front end of the first pipe section.

[0008] As a further improvement of the above technical solution: the connecting pipe section is communicated with the front end of the second pipe section, and a second stop valve is provided at the rear end of the second pipe section.

[0009] As a further improvement of the above technical solution: the inverted arch material distribution device also includes a cleaning pump located at the rear end of the first pipe section, the rear end of the first pipe section is detachably connected to the material distribution pump, and the rear end of the second pipe section is connected to a drainage pipe.

[0010] As a further improvement of the above technical solution: the drain pipe is a hose.

[0011] As a further improvement of the above technical solution: the material distribution valve is an electrically controlled valve, and the first stop valve and the second stop valve are both electrically controlled valves.

[0012] As a further improvement of the above technical solution: a plurality of the material distribution valves are evenly arranged on the first pipe section and the second pipe section.

[0013] As a further improvement of the above technical solution: the first pipe segment and the second pipe segment are arranged on the outer edge of the inverted arch formwork.

[0014] As a further improvement of the above technical solution: the material distribution pump is a ground pump.

[0015] As a further improvement of the above technical solution: the inverted arch formwork is an integral formwork.

[0016] Compared with the prior art, the utility model has the advantages that: the pump pipe in the inverted arch material distribution device disclosed in the utility model comprises a first pipe section and a second pipe section respectively arranged on the inverted arch formworks on both sides of the tunnel, a plurality of material distribution valves are arranged at intervals on the first pipe section and the second pipe section, the first pipe section is connected to the material distribution pump, and the material distribution pump is located behind the inverted arch formwork. When the inverted arch layer concrete is constructed, the concrete tank truck unloads the concrete into the material distribution pump, opens the material distribution valve closest to the location to be cast, and other material distribution valves remain closed. The material distribution pump pumps the concrete into the pump pipe, and the concrete flows out through the opened material distribution valve for casting. After the casting of one location is completed, the relevant material distribution valve is closed, and the material distribution valve closest to the next casting location is opened to continue the casting work, and the above steps are repeated until the inverted arch layer of the corresponding construction section is cast. When the inverted arch material distribution device of the utility model is used, the concrete tank truck does not need to pass on the trestle, and will not affect the construction work in other construction areas. Workers only need to operate the switches of the relevant material distribution valves to complete the construction of the inverted arch layers on both sides of the tunnel, eliminating the work and time of manually adjusting the position of the simple chute, reducing the labor intensity of workers and improving construction efficiency. If necessary, multiple material distribution valves can be opened to pour the inverted arch layer concrete at multiple pouring points at the same time, greatly improving the construction efficiency of the inverted arch layer concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of an inverted arch material distributing device of the utility model.

[0018] Figure 2 It is a top view structural schematic diagram of the inverted arch material distributing device of the utility model.

[0019] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] Figure 4 It is a side structural schematic diagram of an inverted arch material distributing device of the utility model.

[0021] The reference numerals in the figure indicate: 1. material distribution pump; 2. pump pipe; 21. first pipe section; 22. second pipe section; 23. connecting pipe section; 3. inverted arch formwork; 4. material distribution valve; 5. first stop valve; 6. second stop valve; 7. cleaning pump; 8. drain pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore cannot be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Figures 1 to 4 An embodiment of the utility model inverted arch material distribution device is shown, which includes a material distribution pump 1, a pump pipe 2 and an inverted arch template 3 arranged on both sides of the tunnel, the material distribution pump 1 is located behind the inverted arch template 3 and is connected to the pump pipe 2, the pump pipe 2 includes a first pipe section 21 and a second pipe section 22, the first pipe section 21 and the second pipe section 22 are respectively arranged on the inverted arch template 3, and a plurality of material distribution valves 4 are arranged on the first pipe section 21 and the second pipe section 22. It should be noted that the rear here refers to the direction opposite to the tunnel excavation direction.

[0026] The pump pipe 2 in the inverted arch material distribution device of this embodiment includes a first pipe section 21 and a second pipe section 22 respectively arranged on the inverted arch formwork 3 on both sides of the tunnel, the first pipe section 21 is connected to the material distribution pump 1, and the material distribution pump 1 is located behind the inverted arch formwork 3. When the inverted arch layer concrete is constructed, the concrete tank truck unloads the concrete into the material distribution pump 1, opens the material distribution valve 4 closest to the location where the casting is required, and the other material distribution valves 4 remain closed. The material distribution pump 1 pumps the concrete into the pump pipe 2, and the concrete flows out through the opened material distribution valve 4 for casting. After the casting of one location is completed, the relevant material distribution valve 4 is closed, and the material distribution valve 4 closest to the next casting location is opened, and the casting work is continued. The above steps are repeated until the inverted arch layer of the corresponding construction section is cast. The concrete tank truck does not need to pass on the trestle, and will not affect the construction work in other construction areas. Workers only need to control the switch of the relevant material distribution valve 4 to complete the construction of the inverted arch layers on both sides of the tunnel, which saves the work and time of manually adjusting the position of the simple chute, reduces the labor intensity of workers, and improves construction efficiency. If necessary, multiple material distribution valves 4 can be opened to simultaneously pour the inverted arch layer concrete at multiple pouring points, which greatly improves the construction efficiency of the inverted arch layer concrete pouring.

[0027] Furthermore, in this embodiment, the pump pipe 2 further includes a connecting pipe section 23, the rear end of the first pipe section 21 is connected to the material distribution pump 1, and the front end is connected to the second pipe section 22 through the connecting pipe section 23, and a first stop valve 5 is provided at the front end of the first pipe section 21. When pouring the side arch filling layer of the first pipe section 21, the first stop valve 5 can be closed, and the concrete pumped from the material distribution pump 1 is concentrated in the first pipe section 21. At this time, the corresponding material distribution valve 4 is opened, and the concrete will flow out of the material distribution valve 4 at a faster flow rate for distribution; it can also prevent the concrete from entering the second pipe section 22 and solidifying, and the structure is simple and reasonable.

[0028] Furthermore, in this embodiment, the connecting pipe section 23 is connected to the front end of the second pipe section 22, and a second stop valve 6 is provided at the rear end of the second pipe section 22. When pouring the side inverted arch filling layer of the second pipe section 22, closing the second stop valve 6 can prevent concrete from flowing out of the rear end of the second pipe section 22 and causing waste of concrete.

[0029] Specifically, the first pipe section 21 and the second pipe section 22 are provided with the same number of distribution valves 4, and multiple distribution valves 4 are evenly arranged on the first pipe section 21 and the second pipe section 22. This is beneficial to improving the uniformity of the inverted arch layer pouring on both sides of the tunnel. In this embodiment, the length of the inverted arch formwork 3 on each side is 12m, the first pipe section 21 is provided with distribution valves D1, D2, and D3, and the second pipe section 22 is provided with distribution valves D4, D5, and D6 (see Figure 3 ).

[0030] In this embodiment, the inverted arch material distribution device also includes a cleaning pump 7 located at the rear end of the first pipe section 21, the rear end of the first pipe section 21 is detachably connected to the material distribution pump 1, and the rear end of the second pipe section 22 is connected to a drain pipe 8. After the pouring of the inverted arch filling layer is completed, the first pipe section 21 can be disassembled from the material distribution pump 1 and connected to the cleaning pump 7, so as to facilitate the cleaning of the pump pipe 2 and prevent the residual concrete from solidifying in the pump pipe 2 and causing blockage. The rear end of the second pipe section 22 is connected to the drain pipe 8, and the drainage end of the drain pipe 8 is placed away from the inverted arch filling layer poured in the current construction section to avoid the inverted arch filling layer that has just been poured from contacting water and increasing the water-cement ratio of the surface concrete, thereby reducing the strength of the inverted arch filling layer. Preferably, the drain pipe 8 is a hose, which is light in weight and convenient for moving and adjusting the drainage position.

[0031] Preferably, the first stop valve 5, the second stop valve 6 and each material distribution valve 4 are all electrically controlled valves, which further reduces the participation of workers in the pouring process, reduces the labor intensity of workers, and is conducive to realizing automated operations.

[0032] Furthermore, in this embodiment, the inverted arch formwork 3 is an integral formwork, and the first pipe section 21 and the second pipe section 22 are arranged at the outer edge of the inverted arch formwork 3, which is convenient for the distribution of concrete and avoids collision with vehicles and equipment passing on the pier. When the inverted arch formwork 3 moves, the pump pipe 2 can move with the inverted arch formwork 3, which is easy to use.

[0033] Furthermore, in this embodiment, the material distribution pump 1 is a ground pump. The ground pump has the advantages of strong applicability and good continuous working performance.

[0034] The method of using the inverted arch material distributing device of this embodiment is as follows:

[0035] Before conveying concrete, connect the rear end of the first pipe section 21 of the pump pipe 2 to the distribution pump 1, and close the first stop valve 5, the second stop valve 6 and the distribution valves 4; when conveying concrete, start the distribution pump 1, open the distribution valve D1 4, and pour the concrete at point D1; when pouring point D1, close the distribution valve D1 4, open the distribution valve D2 4, and pour the concrete at point D2; when pouring point D2, close the distribution valve D2 4, open the distribution valve D3 4, and pour the concrete at point D3; when pouring point D3, close the distribution valve D3, open the first stop valve 5 and the distribution valve D4 4. Pour the concrete at point D4; when the concrete pouring at point 4 is completed, close the D4 distribution valve 4, open the D5 distribution valve 4, and then pour the concrete at point D5; when the concrete pouring at point D5 is completed, close the D5 distribution valve 4, open the D6 distribution valve 4, and then pour the concrete at point D6; when the concrete pouring at all points is completed, remove the rear end of the first pipe section 21 of the pump pipe 2 from the distribution pump 1, and then connect it to the cleaning pump 7, close all the distribution valves 4, open the first stop valve 5 and the second stop valve 6, place the drainage end of the drain pipe 8 on the rear end filling surface, start the cleaning pump 7, and complete the cleaning of the pump pipe 2.

[0036] Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An inverted arch material distributing device, characterized in that: The invention comprises a material distribution pump (1), a pump pipe (2) and an inverted arch formwork (3) arranged on both sides of a tunnel, wherein the material distribution pump (1) is located behind the inverted arch formwork (3) and is connected to the pump pipe (2), the pump pipe (2) comprises a first pipe section (21) and a second pipe section (22), the first pipe section (21) and the second pipe section (22) are respectively arranged on the inverted arch formwork (3), and a plurality of material distribution valves (4) are arranged at intervals on the first pipe section (21) and the second pipe section (22).

2. The inverted arch material distributing device according to claim 1, characterized in that: The pump pipe (2) further comprises a connecting pipe section (23); the rear end of the first pipe section (21) is connected to the material distribution pump (1) and the front end is connected to the second pipe section (22) through the connecting pipe section (23); a first stop valve (5) is provided at the front end of the first pipe section (21).

3. The inverted arch material distributing device according to claim 2, characterized in that: The connecting pipe section (23) is in communication with the front end of the second pipe section (22), and a second stop valve (6) is provided at the rear end of the second pipe section (22).

4. The inverted arch material distributing device according to claim 3, characterized in that: It also comprises a cleaning pump (7) located at the rear end of the first pipe section (21); the rear end of the first pipe section (21) is detachably connected to the material distribution pump (1); and the rear end of the second pipe section (22) is connected to a drainage pipe (8).

5. The inverted arch material distributing device according to claim 4, characterized in that: The drainage pipe (8) is a hose.

6. The inverted arch material distributing device according to claim 3, characterized in that: The material distribution valve (4) is an electrically controlled valve, and the first stop valve (5) and the second stop valve (6) are both electrically controlled valves.

7. The invert material distributing device according to any one of claims 1 to 6, characterized in that: The plurality of material distribution valves (4) are evenly arranged on the first pipe section (21) and the second pipe section (22).

8. The invert material distributing device according to any one of claims 1 to 6, characterized in that: The first pipe section (21) and the second pipe section (22) are arranged on the outer edge of the inverted arch formwork (3).

9. The invert material distributing device according to any one of claims 1 to 6, characterized in that: The material distribution pump (1) is a ground pump.

10. The invert material distributing device according to any one of claims 1 to 6, characterized in that: The inverted arch formwork (3) is an integral formwork.

Images