Large-volume concrete multi-point-position bin-dividing pouring device

Abstract

The utility model relates to the technical field of concrete pouring, in particular to a large-volume concrete multi-point-position branch bin pouring device which automatically switches a conveying pipe and branch bins for conveying concrete by sensing pressure, simplifies concrete pouring operation and is good in practicability. Comprising a conveying pump station and a main conveying pipe, the system further comprises a plurality of switching mechanisms, a plurality of discharging pipes and a plurality of branch conveying pipes, the input end of the main conveying pipe is connected with the input end of the first switching mechanism, the multiple discharging pipes are installed at the first output ends of the multiple switching mechanisms correspondingly, and the multiple discharging pipes are used for pouring concrete into the multiple branch bins correspondingly. The input ends of the multiple branch conveying pipes are connected with the second output ends of the multiple switching mechanisms correspondingly, the output ends of the multiple branch conveying pipes are connected with the input ends of the other multiple switching mechanisms correspondingly, and the switching mechanisms are used for automatically switching concrete to be conveyed to the discharging pipe or the branch conveying pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pouring, in particular to a large-volume concrete multi-point compartment pouring device. Background Art

[0002] When pouring large-volume concrete, in order to effectively reduce temperature cracks of large-volume concrete, a multi-point compartment pouring method is usually adopted. Various large-volume concrete multi-point compartment pouring devices are proposed in the prior art. For example, a large-volume concrete multi-point compartment pouring device is proposed in the Chinese utility model patent with publication number CN217924908U. The concrete pouring pipe at the bottom of the sliding shell of the device is composed of two parts. The first part is a concrete pouring steel pipe, and the second part is a pouring hose, which is convenient for the operator to operate the pouring construction. When the concrete pouring starts, the baffle is opened. When the pouring is about to end, the baffle is lowered in time to seal the discharge port and turn off the servo motor to avoid quality problems such as formwork expansion and bursting caused by too fast concrete entering the warehouse or too large a quantity entering the warehouse. At the same time, the concrete entering the warehouse can be controlled to avoid concrete waste. Compared with the traditional concrete pouring process, the utility model can realize uniform and rapid pouring of large-volume concrete, reduce the interval between concrete pouring layers, reduce the investment of construction resources, and effectively control the quality of concrete pouring.

[0003] However, the above device only controls the delivery and stopping of concrete in the delivery pipe through the baffle, and the baffle only has a cut-off function but does not have the function of switching pipelines. Therefore, when a sub-chamber is filled, the delivery pipe needs to be switched manually, which makes the operation complicated and the practicability poor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a large-volume concrete multi-point compartment pouring device which can automatically switch the concrete delivery pipe and compartment by sensing pressure, simplifies the concrete pouring operation, and has good practicality.

[0005] The utility model discloses a large-volume concrete multi-point compartment casting device, comprising a conveying pump station and a main conveying pipe, wherein the conveying pump station is used for pumping concrete, the input end of the main conveying pipe is connected with the output end of the conveying pump station, and the main conveying pipe is used for conveying concrete to multiple compartments; the utility model also comprises multiple switching mechanisms, multiple discharge pipes and multiple sub-conveying pipes, the input end of the main conveying pipe is connected with the input end of the first switching mechanism, the multiple discharge pipes are respectively installed on the first output ends of the multiple switching mechanisms, the multiple discharge pipes are used for respectively casting concrete to multiple compartments, the input ends of the multiple sub-conveying pipes are respectively connected with the second output ends of the multiple switching mechanisms, the output ends of the multiple sub-conveying pipes are respectively connected with the input ends of other multiple switching mechanisms, and the switching mechanisms are used for automatically switching the concrete to be transported to the discharge pipe or the sub-conveying pipe; During operation, the delivery pump station pumps concrete to the main delivery pipe, and the main delivery pipe delivers concrete to the first switching mechanism. The first switching mechanism closes the second output end and opens the first output end, so that concrete is poured into the first sub-compartment through the discharge pipe on the first switching mechanism. When the first sub-compartment is full of concrete, the first switching mechanism automatically switches to close the first output end and open the second output end, so that concrete is transported to the second switching mechanism through the first sub-delivery pipe. The second switching mechanism opens the first output end and closes the second output end, thereby pouring concrete into the second sub-compartment. The above operation is repeated until all sub-compartments are poured. Automatic switching of delivery pipes and sub-compartments is realized, which simplifies the concrete pouring operation and has good practicality.

[0006] Preferably, the switching mechanism comprises piston box 1, piston box 2, connecting pipe, piston 1, piston 2, spring 1, positioning plate, latch and contraction assembly, chamber 1 is arranged inside piston box 1, an input port and a first output port connected to chamber 1 are arranged on piston box 1, the input port is connected to the output end of the main delivery pipe or the output end of the branch delivery pipe, the first output port is connected to the input end of the discharge pipe, chamber 2 is arranged inside piston box 2, a second output port connected to chamber 2 is arranged on piston box 2, the second output port is connected to the input end of the branch delivery pipe, The chamber 1 of the piston box 1 and the chamber 2 of the piston box 2 are connected through a connecting pipe, the piston 1 is slidably installed in the chamber 1 of the piston box 1, the piston 1 is used to close the first output port, the piston 2 is installed on the piston 1 through the shaft rod, the piston 2 is located in the chamber 2 of the piston box 2 and closes the connecting pipe, one end of the spring 1 is connected to the piston 1, and the other end of the spring 1 is connected to the inner wall of the piston box 1, the elastic force of the spring 1 pushes the piston 1 toward the first output port, the positioning plate is installed on the piston 1, and a socket is set on the positioning plate, and the latch is vertically slidably installed in the chamber 1 of the piston box 1, and the latch The upper end is inserted into the socket to lock the positioning plate and piston 1. When locked, piston 1 is away from the first output port. The latch is driven by the contraction component. After the sub-compartment is fully poured, the contraction component drives the latch to descend to release the positioning plate. When pouring concrete into a sub-compartment, move piston 1 to compress spring 1 so that the upper end of the latch is inserted into the socket to lock the positioning plate, thereby locking piston 1. At this time, piston 1 is away from the first output port of piston box 1, and piston 2 closes the connecting pipe. At this time, concrete is poured into the sub-compartment through chamber 1, the first output port and the discharge pipe of piston box 1. When After the layers are fully poured, the contraction assembly drives the pin downward, so that the pin is pulled out from the socket of the positioning plate, the positioning plate is released, and the elastic force of spring one is released to push piston one and piston two toward the first output port of piston box one, so that piston one closes the first output port, and at the same time piston two detaches from the connecting pipe and enters chamber two of piston box two, so that concrete is transported to the next piston box one through chamber one of piston box one, the connecting pipe, chamber two of piston box two, the second output port and the sub-delivery pipe, thereby realizing the switching of concrete delivery to different sub-compartments, which is practical.

[0007] Preferably, one end of the positioning plate extends out of the outside of the piston box one; the end of the positioning plate extending out of the piston box one can pull the piston one to move, so that the released spring one is compressed, and the latch is inserted into the socket of the positioning plate again, locking the positioning plate and the piston one, thereby improving the convenience of operation.

[0008] Preferably, the contraction component includes a piston cylinder, a connecting tube 2, a piston cylinder 2, a piston 3, a spring 2, a piston 4 and a spring 3. A chamber 3 is arranged inside the piston cylinder. An input end and an output end connected to the chamber 3 are respectively arranged at both ends of the piston cylinder. The input end of the piston cylinder is connected to the discharge pipe. A chamber 4 is arranged inside the piston cylinder 2. An opening connected to the chamber 4 is arranged in the middle of the piston cylinder 2. The output end of the piston cylinder is connected to the input end of the connecting tube 2. The output end of the connecting tube 2 is connected to the opening of the connecting tube 2. The piston 3 is slidably installed in the chamber 3 of the piston cylinder. One end of the spring 2 is connected to the piston 3. The other end of the spring 2 is connected to the piston cylinder. The elastic force of the spring 2 pushes the piston 3 to the input end of the piston cylinder. The piston 4 is slidably installed in the chamber 4 of the piston cylinder 2. The latch The lower end is connected with piston four, and piston four is located below the opening of piston cylinder two. One end of spring three is connected with piston four, and the other end of spring three is connected with piston cylinder two. The elastic force of spring three pushes piston four toward piston box one. When the sub-compartment is full, the pressure in the discharge pipe increases, and the pressure pushes piston three to move toward the output end of the piston cylinder and compresses spring two. Piston three compresses the gas or liquid in chamber four connecting pipe two and piston cylinder two, which is located above piston four, thereby pushing piston four downward and compressing spring three. At this time, piston four drives the pin to contract and descend, so that the upper end of the pin is pulled out of the socket of the positioning plate, thereby releasing the positioning plate and piston one, realizing the function of automatically switching the concrete delivery direction by sensing the concrete pressure in the discharge pipe, and having good practicality.

[0009] Preferably, the pressure area of ​​piston three is larger than that of piston four; through the above arrangement, when the pressure in the discharge pipe increases less and piston three moves a smaller distance, piston four can also be driven to move, thereby improving driving sensitivity.

[0010] Preferably, it also includes multiple pressure probes 1 and 2, and the multiple pressure probes 1 are respectively installed on the multiple discharge pipes, and the multiple pressure probes 1 respectively detect the conveying pressure of concrete in the multiple discharge pipes, and the pressure probe 2 is installed on the main conveying pipe, and the pressure probe 2 detects the conveying pressure of concrete in the main conveying pipe; the multiple pressure probes 1 and 2 send pressure values ​​to the controller, and the switching state of the sub-compartment pouring is determined by the change of pressure values ​​detected by the multiple pressure probes 1 and 2. Each change corresponds to the switching of a sub-compartment. When the change value does not match the preset value, an alarm is issued to remind the staff to check the pouring condition of the corresponding sub-compartment, thereby realizing automatic auxiliary monitoring of the pouring condition.

[0011] Preferably, wireless communication modules are provided on the multiple pressure probes 1 and pressure probes 2; the multiple pressure probes 1 and pressure probes 2 are respectively connected to the controller for wireless communication via the multiple wireless communication modules, so as to facilitate the flexible arrangement of the multiple pressure probes 1 and pressure probes 2, save wire arrangement, and improve the convenience of pipeline layout.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when working, the delivery pump station pumps concrete to the main delivery pipe, and the main delivery pipe delivers concrete to the first switching mechanism. The first switching mechanism closes the second output end and opens the first output end, so that concrete is poured into the first sub-compartment through the discharge pipe on the first switching mechanism. When the first sub-compartment is full of concrete, the first switching mechanism automatically switches, closes the first output end, and opens the second output end, so that concrete is transported to the second switching mechanism through the first sub-delivery pipe. The second switching mechanism opens the first output end and closes the second output end, thereby pouring concrete into the second sub-compartment. The above operation is repeated until all sub-compartments are poured, thereby realizing automatic switching of delivery pipes and sub-compartments, simplifying concrete pouring operations, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall arrangement structure of the utility model;

[0014] Figure 2 It is a front cross-sectional structural diagram of the delivery pump station, main delivery pipe, switching mechanism, discharge pipe and branch delivery pipe of the utility model;

[0015] Figure 3 It is an axonometric structural diagram of the delivery pump station, main delivery pipe, switching mechanism, discharge pipe and branch delivery pipe of the utility model;

[0016] Figure 4 It is a partial cross-sectional structural diagram of the switching mechanism, the discharge pipe and the sub-transmission pipe;

[0017] Figure 5 It is a partial cross-sectional structural schematic diagram of the discharge pipe and the contraction component;

[0018] Figure 6 It is a schematic diagram of the structure of pressure probe 2 and wireless communication module.

[0019] Markings in the attached figure: 1. Delivery pump station; 2. Main delivery pipe; 3. Switching mechanism; 4. Discharge pipe; 5. Branch delivery pipe; 6. Piston box one; 7. Piston box two; 8. Connecting pipe; 9. Piston one; 10. Piston two; 11. Spring one; 12. Positioning plate; 13. Latch; 14. Piston cylinder; 15. Connecting pipe two; 16. Piston cylinder two; 17. Piston three; 18. Spring two; 19. Piston four; 20. Spring three; 21. Pressure probe one; 22. Pressure probe two; 23. Wireless communication module. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figures 1 to 5As shown, a large-volume concrete multi-point compartment casting device includes a delivery pump station 1 and a main delivery pipe 2. The delivery pump station 1 is used to pump concrete. The input end of the main delivery pipe 2 is connected to the output end of the delivery pump station 1, and the main delivery pipe 2 is used to deliver concrete to multiple compartments; it also includes multiple switching mechanisms 3, multiple discharge pipes 4 and multiple sub-delivery pipes 5. The input end of the main delivery pipe 2 is connected to the input end of the first switching mechanism 3, and the multiple discharge pipes 4 are respectively installed on the first output ends of the multiple switching mechanisms 3. The multiple discharge pipes 4 are used to cast concrete to multiple compartments respectively. The input ends of the multiple sub-delivery pipes 5 are respectively connected to the input end of the first switching mechanism 3. The switching mechanism 3 is used to automatically switch the concrete to be transported to the discharge pipe 4 or the sub-transmission pipe 5; the switching mechanism 3 includes a piston box 1 6, a piston box 2 7, a connecting pipe 8, a piston 1 9, a piston 2 10, a spring 11, a positioning plate 12, a latch 13 and a contraction assembly; a chamber 1 is arranged inside the piston box 1 6, an input port and a first output port connected to the chamber 1 are arranged on the piston box 1 6, and the input port is connected to the output end of the main delivery pipe 2 or the output end of the sub-transmission pipe 5. The first output port is connected to the input end of the discharge pipe 4, the interior of the piston box 2 7 is provided with a chamber 2, the piston box 2 7 is provided with a second output port connected to the chamber 2, the second output port is connected to the input end of the branch delivery pipe 5, the chamber 1 of the piston box 1 6 and the chamber 2 of the piston box 2 7 are connected through a connecting pipe 8, the piston 1 9 is slidably installed in the chamber 1 of the piston box 1 6, the piston 1 9 is used to close the first output port, the piston 2 10 is installed on the piston 1 9 through a shaft, the piston 2 10 is located in the chamber 2 of the piston box 2 7 and closes the connecting pipe 8, one end of the spring 11 is connected to the The piston 19 is connected, and the other end of the spring 11 is connected to the inner wall of the piston box 6. The elastic force of the spring 11 pushes the piston 19 toward the first output port. The positioning plate 12 is installed on the piston 19. A socket is set on the positioning plate 12. The latch 13 is vertically slidably installed in the chamber 1 of the piston box 6. The upper end of the latch 13 is inserted into the socket to lock the positioning plate 12 and the piston 9. When locked, the piston 9 is away from the first output port. The latch 13 is driven by the contraction component. After the sub-compartment is fully poured, the contraction component drives the latch 13 to descend to release the positioning plate 12; one end of the positioning plate 12 extends out of the outside of the piston box 6;The contraction assembly includes a piston cylinder 14, a connecting tube 15, a piston cylinder 16, a piston 3 17, a spring 18, a piston 4 19 and a spring 3 20. A chamber 3 is arranged inside the piston cylinder 14. An input end and an output end connected to the chamber 3 are arranged at both ends of the piston cylinder 14 respectively. The input end of the piston cylinder 14 is connected to the discharge pipe 4. A chamber 4 is arranged inside the piston cylinder 16. An opening connected to the chamber 4 is arranged in the middle of the piston cylinder 16. The output end of the piston cylinder 14 is connected to the input end of the connecting tube 15. The output end of the connecting tube 15 is connected to the opening of the connecting tube 15. The piston 3 17 is slidably mounted on the piston cylinder 14. In chamber three, one end of spring two 18 is connected to piston three 17, and the other end of spring two 18 is connected to piston cylinder 14. The elastic force of spring two 18 pushes piston three 17 toward the input end of piston cylinder 14. Piston four 19 is slidably installed in chamber four of piston cylinder two 16. The lower end of latch 13 is connected to piston four 19. Piston four 19 is located below the opening of piston cylinder two 16. One end of spring three 20 is connected to piston four 19, and the other end of spring three 20 is connected to piston cylinder two 16. The elastic force of spring three 20 pushes piston four 19 toward piston box one 6. The pressure area of ​​piston three 17 is larger than the pressure area of ​​piston four 19. ;

[0023] During operation, the delivery pump station 1 pumps concrete to the main delivery pipe 2, and the main delivery pipe 2 delivers concrete to the first switching mechanism 3. When pouring concrete into a sub-compartment, the end of the piston box 6 extending through the positioning plate 12 can pull the piston 9 to move, so that the released spring 11 is compressed, and the latch 13 is inserted into the jack of the positioning plate 12 again, locking the positioning plate 12 and the piston 9. At this time, the piston 9 is away from the first output port of the piston box 6, and the piston 2 10 closes the connecting pipe 8. At this time, the concrete is poured into the sub-compartment through the chamber 1 of the piston box 6, the first output port and the discharge pipe 4. When the layers are fully poured, the pressure in the discharge pipe 4 increases, and the pressure pushes the piston 3 17 to move toward the output end of the piston cylinder 14 and compresses the spring 2 18. The piston 3 17 compresses the gas or liquid in the chamber 4 of the connecting pipe 2 15 and the piston cylinder 2 16 located above the piston 4 19, thereby pushing the piston 4 19 downward and compressing the spring 3 20. At this time, the piston 4 19 drives the latch 1 3 contracts and descends, so that the upper end of the latch 13 is pulled out from the insertion hole of the positioning plate 12, thereby releasing the positioning plate 12 and the piston 1 9, and the elastic force of the spring 11 is released to push the piston 1 9 and the piston 2 10 toward the first output port of the piston box 1 6, so that the piston 1 9 closes the first output port, and at the same time, the piston 2 10 is separated from the connecting pipe 8 and enters the chamber 2 of the piston box 2 7, so that the concrete is transported to the next piston box 1 6 through the chamber 1 of the piston box 1 6, the connecting pipe 8, the chamber 2 of the piston box 2 7, the second output port and the sub-conveying pipe 5, thereby realizing the switching of the concrete to different sub-compartments. By setting the pressure area of ​​the piston 3 17 to be larger than the pressure area of ​​the piston 4 19, the piston 4 19 can be driven to move when the pressure in the discharge pipe 4 increases less and the piston 3 17 moves a smaller distance, thereby improving the driving sensitivity, thereby pouring concrete into the second sub-compartment, and repeating the above operation until all sub-compartments are poured, thereby realizing automatic switching of the conveying pipe and sub-compartment, and simplifying the concrete pouring operation.

[0024] Example 2

[0025] like Figure 1 , Figure 5 and Figure 6 As shown, on the basis of Example 1, it also includes multiple pressure probes 21 and pressure probes 22. The multiple pressure probes 21 are respectively installed on multiple discharge pipes 4, and the multiple pressure probes 21 respectively detect the conveying pressure of concrete in the multiple discharge pipes 4. The pressure probe 2 22 is installed on the main conveying pipe 2, and the pressure probe 2 22 detects the conveying pressure of concrete in the main conveying pipe 2; wireless communication modules 23 are set on the multiple pressure probes 21 and pressure probes 22.

[0026] Multiple pressure probes 1 21 and pressure probes 22 are respectively connected to the controller for wireless communication via multiple wireless communication modules 23, which facilitates the flexible arrangement of multiple pressure probes 1 21 and pressure probes 2 22, saves wire arrangement, and improves the convenience of pipeline arrangement. Multiple pressure probes 1 21 and pressure probes 2 22 send pressure values ​​to the controller, and the switching state of the compartment casting is determined by the pressure value changes detected by multiple pressure probes 1 21 and pressure probes 2 22. Each change corresponds to the switching of a compartment. When the change value does not match the preset value, an alarm is issued to remind the staff to check the casting condition of the corresponding compartment, thereby realizing automatic auxiliary monitoring of the casting condition.

[0027] like Figures 1 to 6 As shown, the utility model is a large-volume concrete multi-point compartment casting device. When it is working, the delivery pump station 1 first pumps concrete to the main delivery pipe 2, and the main delivery pipe 2 delivers concrete to the first piston box 6. The concrete is poured into the compartment through the chamber 1 of the piston box 6, the first output port and the discharge pipe 4. After that, when the layered casting is full, the pressure in the discharge pipe 4 increases, and the pressure pushes the piston 3 17 to move toward the output end of the piston cylinder 14 and compresses the spring 2 18. The piston 3 17 compresses the gas or liquid in the chamber 4 of the connecting pipe 2 15 and the piston cylinder 2 16, which is located above the piston 4 19, thereby pushing the piston 4 19 downward and compressing the spring 3 20. At this time, the piston 4 19 drives the pin 13 to contract and descend, so that the upper end of the pin 13 is pulled out of the socket of the positioning plate 12, thereby releasing the positioning plate 12 and the piston 1 9, and then the elastic force of the spring 11 releases the piston 1 9 and the piston 2 10 to the piston box 6. The first output port is pushed, so that piston 1 9 closes the first output port, and at the same time piston 2 10 detaches from connecting pipe 8 and enters chamber 2 of piston box 2 7, so that concrete is transported to the next piston box 1 6 through chamber 1 of piston box 1 6, connecting pipe 8, chamber 2 of piston box 2 7, second output port and sub-delivery pipe 5, realizing the switching of concrete delivery to different sub-compartments, thereby pouring concrete into the second sub-compartment, repeating the above operation until all sub-compartments are poured, and finally multiple pressure probes 1 21 and pressure probes 2 22 respectively send pressure values ​​to the controller through multiple wireless communication modules 23, and the switching state of sub-compartment pouring is determined by the changes in pressure values ​​detected by multiple pressure probes 1 21 and pressure probes 2 22, each change corresponds to the switching of a sub-compartment, and when the change value does not match the preset value, an alarm is issued to remind the staff to check the pouring condition of the corresponding sub-compartment, thereby realizing automatic auxiliary monitoring of the pouring condition.

[0028] The main functions achieved by this utility model are:

[0029] 1. Automatically switch the delivery pipe and compartment of concrete delivery by sensing pressure to simplify the concrete pouring operation;

[0030] 2. By setting the pressure area of ​​piston three 17 to be larger than the pressure area of ​​piston four 19, the change of concrete delivery pressure can be more sensitively sensed;

[0031] 3. By detecting the changes in the conveying pressure of multiple discharge pipes 4 and the main conveying pipe 2, the pouring conditions of the corresponding sub-bins are checked.

[0032] The utility model is a large-volume concrete multi-point compartment casting device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the utility model is a large-volume concrete multi-point compartment casting device. The delivery pump station 1, the main delivery pipe 2, the discharge pipe 4, the branch delivery pipe 5, the piston 1 9, the piston 2 10, the spring 1 11, the pin 13, the connecting pipe 2 15, the piston 3 17, the spring 2 18, the piston 4 19, the spring 3 20, the pressure probe 1 21, the pressure probe 2 22, and the wireless communication module 23 are purchased on the market, and the technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technical personnel in this field to pay creative labor.

[0033] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A large-volume concrete multi-point compartment pouring device, comprising a delivery pump station (1) and a main delivery pipe (2), wherein the delivery pump station (1) is used to pump concrete, the input end of the main delivery pipe (2) is connected to the output end of the delivery pump station (1), and the main delivery pipe (2) is used to deliver concrete to multiple compartments; characterized in that: It also comprises a plurality of switching mechanisms (3), a plurality of discharge pipes (4) and a plurality of branch delivery pipes (5); the input end of the main delivery pipe (2) is connected to the input end of the first switching mechanism (3); the plurality of discharge pipes (4) are respectively installed on the first output ends of the plurality of switching mechanisms (3); the plurality of discharge pipes (4) are used to pour concrete into the plurality of sub-bins respectively; the input ends of the plurality of branch delivery pipes (5) are respectively connected to the second output ends of the plurality of switching mechanisms (3); the output ends of the plurality of branch delivery pipes (5) are respectively connected to the input ends of the other plurality of switching mechanisms (3); and the switching mechanisms (3) are used to automatically switch the delivery of concrete to the discharge pipe (4) or the branch delivery pipe (5).

2. A large volume concrete multi-point compartment pouring device as claimed in claim 1, characterized in that: The switching mechanism (3) comprises a piston box (6), a piston box (7), a connecting pipe (8), a piston (9), a piston (10), a spring (11), a positioning plate (12), a latch (13) and a contraction assembly. A chamber (1) is arranged inside the piston box (6). An input port and a first output port communicating with the chamber (1) are arranged on the piston box (6). The input port is connected to the output end of the main delivery pipe (2) or the output end of the branch delivery pipe (5). The first output port is connected to the input end of the discharge pipe (4). A chamber (2) is arranged inside the piston box (7). A second output port communicating with the chamber (2) is arranged on the piston box (7). The second output port is connected to the input end of the branch delivery pipe (5). The chamber (1) of the piston box (6) and the chamber (2) of the piston box (7) are communicated via the connecting pipe (8). The piston (9) is slidably mounted in the chamber (1) of the piston box (6). The piston (9) is used to close the first output port. The piston (10) is installed on the piston (9) through a shaft. The piston (10) is located in the chamber (2) of the piston box (7) and closes the connecting pipe (8). One end of the spring (11) is connected to the piston (9). The other end of the spring (11) is connected to the inner wall of the piston box (6). The elastic force of the spring (11) pushes the piston (9) toward the first output port. The positioning plate (12) is installed on the piston (9). The positioning plate (12) is provided with a socket. The latch (13) is vertically slidably installed in the chamber (1) of the piston box (6). The upper end of the latch (13) is inserted into the socket to lock the positioning plate (12) and the piston (9). When locked, the piston (9) is away from the first output port. The latch (13) is driven by a contraction component. After the sub-chamber is fully poured, the contraction component drives the latch (13) to descend to release the positioning plate (12).

3. A large volume concrete multi-point compartment pouring device as claimed in claim 2, characterized in that: One end of the positioning plate (12) extends out of the outside of the piston box (6).

4. A large volume concrete multi-point compartment pouring device as claimed in claim 2, characterized in that: The contraction assembly comprises a piston cylinder (14), a connecting tube 2 (15), a piston cylinder 2 (16), a piston 3 (17), a spring 2 (18), a piston 4 (19) and a spring 3 (20). The piston cylinder (14) is provided with a chamber 3 inside. The two ends of the piston cylinder (14) are respectively provided with an input end and an output end which are connected to the chamber 3. The input end of the piston cylinder (14) is connected to the discharge pipe (4). The interior of the piston cylinder 2 (16) is provided with a chamber 4. The middle part of the piston cylinder 2 (16) is provided with an opening which is connected to the chamber 4. The output end of the piston cylinder (14) is connected to the input end of the connecting tube 2 (15). The output end of the connecting tube 2 (15) is connected to the opening of the connecting tube 2 (15). The piston 3 (17) is slidably mounted on the piston cylinder 14. Installed in the chamber three of the piston cylinder (14), one end of the spring two (18) is connected to the piston three (17), the other end of the spring two (18) is connected to the piston cylinder (14), the elastic force of the spring two (18) pushes the piston three (17) toward the input end of the piston cylinder (14), the piston four (19) is slidably installed in the chamber four of the piston cylinder two (16), the lower end of the latch (13) is connected to the piston four (19), the piston four (19) is located below the opening of the piston cylinder two (16), one end of the spring three (20) is connected to the piston four (19), the other end of the spring three (20) is connected to the piston cylinder two (16), the elastic force of the spring three (20) pushes the piston four (19) toward the piston box one (6).

5. A large volume concrete multi-point compartment pouring device as claimed in claim 4, characterized in that: The pressure-bearing area of ​​piston three (17) is greater than the pressure-bearing area of ​​piston four (19).

6. A large volume concrete multi-point compartment pouring device as claimed in claim 1, characterized in that: It also includes a plurality of pressure probes one (21) and a pressure probe two (22), wherein the plurality of pressure probes one (21) are respectively installed on the plurality of discharge pipes (4), and the plurality of pressure probes one (21) respectively detect the delivery pressure of concrete in the plurality of discharge pipes (4), and the pressure probe two (22) is installed on the main delivery pipe (2), and the pressure probe two (22) detects the delivery pressure of concrete in the main delivery pipe (2).

7. A large volume concrete multi-point compartment pouring device as claimed in claim 6, characterized in that: A wireless communication module (23) is provided on each of the plurality of pressure probes one (21) and pressure probe two (22).

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