A construction site concrete pumping metering device and method

Abstract

The present invention discloses a construction site concrete pumping metering device and method, the metering device comprising: a mobile support; a silo fixedly mounted on the mobile support, the silo being divided into a feed silo and a metering silo by an electric partition plate; a discharge pump connected to the metering silo; a discharge pipe connected to the discharge pump; a control box connected to the electric partition plate and mounted on the mobile support; a plurality of pressure sensors, each connected to the control box and respectively mounted on the top and bottom of the metering silo; and a visual camera connected to the control box and mounted on the top of the feed silo. The present invention has metering accuracy, real-time performance, and automation, and can ensure concrete pouring and continuous operation while metering.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a construction site concrete pumping metering device and method. Background Art

[0002] In construction, ready-mixed concrete is typically transported to the construction site using concrete mixer trucks, where it is unloaded into concrete pumping equipment such as truck-mounted pumps and then pumped into the concrete pouring process. Due to the enormous amount of concrete used in construction, errors in concrete measurement and losses caused by improper transportation supervision increase construction costs. Concrete volume is typically calculated by measuring the same truck twice, both fully loaded and unloaded, at a construction site scale. This involves multiple measurement steps, and when there are many concrete mixer trucks, not only is measurement efficiency low due to waiting in line, but there are also cases where concrete is not transported to the scale, leading to omissions. This can lead to discrepancies between the measured and actual concrete usage. When calculating concrete usage based on the nominal capacity of the concrete mixer truck, significant discrepancies can occur due to the truck's load and whether the concrete mixer truck has been delivered to the construction site, impacting the settlement cost of ready-mixed concrete. However, when the liquid valve metering principle is used to measure the actual amount of concrete, it often causes blockage and damage, which affects the concrete pumping construction and thus affects the construction progress. Summary of the Invention

[0003] The purpose of the present invention is to provide a construction site concrete pumping metering device and method to solve the problem that the measured amount of ready-mixed concrete using a floor scale has a large error and low efficiency compared with the actual amount, which affects the settlement cost of the ready-mixed concrete.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a construction site concrete pumping metering device, comprising:

[0005] Mobile stand;

[0006] A silo is fixedly mounted on the movable support, and is divided into a feed silo and a metering silo by an electric partition plate;

[0007] A discharge pump is connected to the metering bin;

[0008] A discharge pipe, connected to the discharge pump;

[0009] A control box is connected to the electric compartment dividing plate and is arranged on the movable bracket;

[0010] There are multiple pressure sensors, all connected to the control box, and respectively arranged at the top and bottom of the metering bin;

[0011] A visual camera is connected to the control box and is arranged on the top of the feed bin.

[0012] Furthermore, in the construction site concrete pumping metering device provided by the present invention, the movable bracket includes a frame body and movable wheels with a locking function provided at the lower end thereof.

[0013] Furthermore, in the construction site concrete pumping metering device provided by the present invention, the electric dividing plate includes a sliding track arranged on the silo, a pull-out plate slidably arranged on the sliding track, and a driving mechanism for driving the pull-out plate to be slidably connected on the sliding track.

[0014] Furthermore, in the construction site concrete pumping metering device provided by the present invention, the silo is a rectangular trough or a trapezoidal trough; or the feed silo is a rectangular trough, and the metering silo is a trapezoidal trough.

[0015] Furthermore, the construction site concrete pumping metering device provided by the present invention also includes:

[0016] a cover plate, arranged at the end of the discharge pipe;

[0017] The infrared sensor is connected to the control box and is arranged on the cover plate.

[0018] Furthermore, in the construction site concrete pumping metering device provided by the present invention, a controller is provided in the control box, the controller is connected to a display, and the display is provided on the control box.

[0019] In order to solve the above technical problems, another technical solution provided by the present invention is: a construction site concrete pumping metering method, using the above construction site concrete pumping metering device, comprising:

[0020] Step S1: Move the concrete pumping equipment to the concrete pouring project site, move the construction site concrete pumping metering device to the concrete pumping equipment, connect the discharge pipe to the pump silo of the concrete pumping equipment, move the concrete mixer truck to the construction site concrete pumping metering device, and align the discharge hopper of the concrete mixer truck with the silo of the concrete pumping metering device at the construction site to discharge the concrete;

[0021] Step S2: Connect the concrete pumping metering device at the construction site to a power source through a control box, detect the pressure values ​​at the top and bottom of the metering bin through a pressure sensor, and detect the liquid level in the bin through a visual camera;

[0022] Step S3, when the pressure sensor detects that the pressure values ​​at the top and bottom of the metering bin are both 0, the control box determines that the metering bin is in an unloaded state, controls the discharge pump to be in a stopped state, and controls the electric partition plate to be in an open state to connect the feed bin with the metering bin, so that the ready-mixed concrete of the concrete mixer truck is unloaded into the metering bin; when the pressure sensor detects that the pressure values ​​at the top and bottom of the metering bin are both greater than 0, the control box determines that the metering bin is in a full-loaded state, counts the number of full-load fillings of the metering bin, and controls the electric partition plate to be in a closed state to isolate the metering bin from the feed bin, so that the ready-mixed concrete in the concrete mixer truck is unloaded into the feed bin; the control box also controls the discharge pump to be in an on state, and transports the ready-mixed concrete in the fully loaded metering bin to the pump bin of the concrete pumping equipment through the discharge pipe, and the ready-mixed concrete loaded in its pump bin is pumped into the concrete pouring project by the concrete pumping equipment;

[0023] In step S4, the control box counts the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip as the metering amount based on the nominal capacity of the metering bin and the number of full-load fillings. The control box counts the cumulative value of the metering amount to determine the real-time actual amount of the concrete pouring project.

[0024] Furthermore, the construction site concrete pumping metering method provided by the present invention further includes, in step S4:

[0025] When the remaining ready-mixed concrete unloading amount of a concrete mixer truck is less than the nominal capacity of the metering bin, the control box calculates the volume of the ready-mixed concrete in the metering bin when it is not fully loaded based on the liquid level height of the metering bin detected by the visual camera and the bottom area of ​​the metering bin using formula (1):

[0026] V1=h(S0+S1) / 2 (1);

[0027] In formula (1), V1 is the volume of ready-mixed concrete in the metering bin when it is not fully loaded, S0 is the bottom area of ​​the metering bin, and S1 is the area at the liquid level of the metering bin;

[0028] The control box calculates the amount of ready-mixed concrete transported by a concrete mixer truck as the metering amount according to formula (2):

[0029] V = n V0 + V1 (2);

[0030] In formula (2), n is the number of times a concrete mixer truck discharges material into the metering bin when it is fully loaded, V0 is the nominal capacity of the metering bin, and V1 is the volume of ready-mixed concrete when the metering bin is not fully loaded. Furthermore, the construction site concrete pumping metering method provided by the present invention also includes:

[0031] The infrared sensor detects the changes in the liquid level in the pump silo of the concrete pumping equipment in real time. The control box adjusts the discharge speed of the discharge pump of the concrete pumping metering device at the construction site according to the changes in the liquid level in the pump silo, so that the pump silo of the concrete pumping equipment maintains a certain liquid level of ready-mixed concrete, and the concrete pumping metering device and the concrete pumping equipment at the construction site work in coordination.

[0032] Furthermore, in the construction site concrete pumping metering method provided by the present invention, the control box displays the accumulated value of the metered amount of ready-mixed concrete in real time on a display connected to the control box.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The construction site concrete pumping metering device and method provided by the present invention unload the ready-mixed concrete in a concrete mixer truck into a metering bin of the construction site concrete pumping metering device, transport the ready-mixed concrete in the metering bin to a concrete pumping device through a discharge pump, and pump the concrete in the metering bin to a concrete pumping device through the concrete pumping device to a concrete pouring project, thereby realizing the unloading of the concrete mixer truck and the assistance of the concrete pumping device, thereby ensuring the continuity of the pouring operation; and also overcoming the problem that the concrete mixer truck cannot directly unload the concrete onto the concrete pumping device due to the height difference between the concrete mixer truck and the concrete pumping device.

[0035] The present invention provides a construction site concrete pumping metering device and method. The control box counts the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip as the metering amount based on the nominal capacity of the metering bin and the number of full-load fillings. The control box counts the cumulative value of the metering amount to determine the real-time actual amount of the concrete pouring project, thereby determining the real-time actual amount of the concrete pouring project, achieving the accuracy, real-time and automatic measurement of the actual amount of the concrete pouring project, and avoiding the problems of low efficiency, easy omissions and large errors in counting the metering amount of the ready-mixed concrete of the concrete mixer truck through a floor scale, which leads to errors with the actual amount and affects the settlement cost of the ready-mixed concrete.

[0036] The construction site concrete pumping metering device and method provided by the present invention can achieve ready-mixed concrete metering while ensuring concrete pumping.

[0037] The construction site concrete pumping metering device and method provided by the present invention have the advantages of small size, small occupied area, and convenient arrangement at the construction site, overcoming the problems of large occupied area, high construction difficulty and high cost of arranging a scale at the construction site.

[0038] The construction site concrete pumping metering device and method provided by the present invention can conveniently move the construction site concrete pumping metering device to any construction area through a movable bracket, so as to perform concrete pouring operations at any arrangement point of the concrete pumping equipment.

[0039] The construction site concrete pumping metering device and method provided by the present invention ensures the continuity of the concrete mixer truck's unloading by unloading the concrete into the feed bin when the metering bin is in a closed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the main structure of the concrete pumping metering device at the construction site;

[0041] Figure 2 This is a top view structural diagram of the concrete pumping metering device at the construction site;

[0042] Figure 3 This is a schematic diagram of the main structure of the concrete pumping metering device in use at the construction site;

[0043] Figure 4 It is a schematic diagram of the main structure of the silo of the concrete pumping metering device at the construction site with the electric dividing plate of the silo open and the metering silo being filled;

[0044] Figure 5 This is a side view of the structure of the silo of the concrete pumping metering device at the construction site, with the electric partition plate in the open state;

[0045] Figure 6 This is a schematic diagram of the main structure of the concrete pumping metering device at the construction site, with the metering bin filled with slurry and the electric dividing plate in the closed state unloading the material from the feed bin;

[0046] Figure 7 It is a top view of the concrete pumping metering device at the construction site, with the metering chamber filled with slurry and the electric compartment plate in a closed state;

[0047] As shown in the figure:

[0048] 100. Construction site concrete pumping metering device, 110. Mobile support, 120. Silo, 121. Measuring bin, 122. Feed bin, 123. Electric partition plate, 123-1. Sliding track, 123-2. Pull-out plate, 123-3. Drive mechanism, 123-4. Flexible cloth, 130. Discharge pump, 140. Discharge pipe, 150. Control box, 160. Pressure sensor, 170. Visual camera, 180. Cover plate, 190. Infrared sensor;

[0049] 200, discharge hopper;

[0050] 300. Pump silo. DETAILED DESCRIPTION

[0051] The present invention will be described in detail below with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not accurately scaled, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0052] Please refer to Figures 1 to 7 The embodiment of the present invention provides a construction site concrete pumping metering device 100, including a mobile support 110, a silo 120, a discharge pump 130, a discharge pipe 140, a control box 150, a pressure sensor 160 and a visual camera 170, wherein:

[0053] The movable bracket 110 includes a bracket body and movable wheels with a locking function provided at the lower end thereof, wherein the bracket body can be a height-adjustable bracket body.

[0054] The silo 120 is fixedly arranged on the mobile bracket 110, and the silo 120 is divided into a feed silo 122 and a metering silo 121 by an electric partition plate. The electric partition plate 123 includes a sliding track 123-1 arranged on the silo 120, a pull-out plate 123-2 slidably arranged on the sliding track 123-1, and a driving mechanism 123-3 for driving the pull-out plate 123-2 to be slidably connected on the sliding track 123-1. The driving mechanism 123-3 can be a driving motor and a gear connected thereto, and a rack can be provided on the pull-out plate 123-2. At this time, the driving mechanism 123-3 and the pull-out plate 123-2 are a gear rack structure, so as to control the pull-out plate 123-2 to be in an open state or a closed state, thereby realizing the interconnection or separation of the feed silo 122 and the metering silo 121. To prevent concrete from entering the sliding track 123-1 and jamming the pull-out plate 123-2, a flexible cloth 123-4 can be installed between the outer walls of the feed bin 122 and the metering bin 121. The electrically operated divider plate 123 can be either a single-sided pull-out or double-sided pull-out type. The silo 120 can be a rectangular or trapezoidal trough; the feed bin 122 can be a rectangular trough, and the metering bin 121 can be a trapezoidal trough.

[0055] The discharge pump 130 is connected to the metering bin 121 and can be disposed at the bottom of the metering bin 121 or at the side of the metering bin 121 .

[0056] The discharge pipe 140 is connected to the discharge pump 130. The discharge pipe 140 can be drawn out from the movable bracket 110. The discharge pipe 140 is preferably a hose.

[0057] The control box 150 is connected to the electric compartment plate 123 and is disposed on the mobile support 110. The control box 150 includes a housing and a controller disposed therein. The controller is connected to a display, which is disposed on the housing. The controller may be a single-chip microcomputer.

[0058] There are multiple pressure sensors 160, all connected to the control box 150, and respectively arranged at the top and bottom of the metering bin 121. There can be multiple pressure sensors 160 at the top and bottom, and the top pressure and the bottom pressure can be averaged for calculation.

[0059] A visual camera 170 is connected to the control box 150 and is mounted on top of the feed bin 122. Multiple visual cameras 170 can be provided to detect the liquid level in the metering bin 121 from different angles. To prevent the visual camera 170 from being obstructed by ready-mixed concrete, the feed bin 122 has a conical opening with a smaller cross-sectional area than the feed bin 122. The conical opening extends into the feed bin 122, enclosing the visual camera 170 between the outer wall of the conical opening and the inner wall of the feed bin 122, thereby protecting the visual camera 170.

[0060] Please refer to Figure 1 and Figure 3 In order to detect the change in the liquid level of the ready-mixed concrete in the pump silo 300 of the concrete pumping equipment, the construction site concrete pumping metering device 100 provided by the embodiment of the present invention may further include:

[0061] The cover plate 180 is disposed at the end of the discharge pipe 140 .

[0062] An infrared sensor 190 is connected to the control box 150 and is disposed on the cover plate 180. The number of infrared sensors 190 is not limited to one; multiple infrared sensors 190 may be disposed at different locations on the cover plate 180 to avoid blind spots or obstruction by falling concrete. The infrared sensor 190 detects changes in the liquid level within the pump silo 300; a single infrared sensor 190 is sufficient.

[0063] The embodiment of the present invention further provides a construction site concrete pumping metering method, which uses the above-mentioned construction site concrete pumping metering device 100, including:

[0064] Step S1, move the concrete pumping equipment to the concrete pouring project site, move the construction site concrete pumping metering device 100 to the concrete pumping equipment, connect the discharge pipe 140 to the pump silo 120 of the concrete pumping equipment, move the concrete mixer truck to the construction site concrete pumping metering device 100, and align the discharge hopper of the concrete mixer truck with the silo 120 of the concrete pumping metering device 100 at the construction site for unloading.

[0065] In step S2 , the construction site concrete pumping metering device 100 is powered on through the control box 150 , the pressure values ​​at the top and bottom of the metering bin 121 are detected through the pressure sensor 160 , and the liquid level in the bin 120 is detected through the visual camera 170 .

[0066] Step S3, when the pressure sensor 160 detects that the pressure values ​​at the top and bottom of the metering bin 121 are both 0, the control box 150 determines that the metering bin 121 is in an unloaded state, controls the discharge pump 130 to be in a shutdown state, and controls the electric partition plate 123 to be in an open state to connect the feed bin 122 with the metering bin 121, so that the ready-mixed concrete of the concrete mixer truck is discharged into the metering bin 121; when the pressure sensor 160 detects that the pressure values ​​at the top and bottom of the metering bin 121 are both greater than 0, the control box 150 determines that the metering bin 121 is in a fully loaded state. The control box 150 controls the discharge pump 130 to be in the on state, and transports the ready-mixed concrete in the fully loaded metering bin 121 to the pump bin 120 of the concrete pumping equipment through the discharge pipe 140, and the ready-mixed concrete loaded in the pump bin 120 is pumped to the concrete pouring project through the concrete pumping equipment.

[0067] In step S4, the control box 150 counts the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip as the metering amount based on the nominal capacity of the metering bin 121 and the number of full-load fillings. The control box 150 counts the cumulative value of the metering amount to determine the real-time actual amount of the concrete pouring project, that is, the actual amount is determined by summation.

[0068] In order to improve the accuracy of measurement, the construction site concrete pumping measurement method provided by the embodiment of the present invention further includes, in step S4:

[0069] When the remaining unloading amount of ready-mixed concrete in a concrete mixer truck is less than the nominal capacity of the metering bin 121, the control box 150 calculates the volume of the ready-mixed concrete in the metering bin 121 when it is not fully loaded based on the liquid level detected by the visual camera 170 and the bottom area of ​​the metering bin 121 using formula (1):

[0070] V1=h(S0+S1) / 2 (1);

[0071] In formula (1), V1 is the volume of ready-mixed concrete in the metering bin 121 when it is not fully loaded, S0 is the bottom area of ​​the metering bin 121, and S1 is the area at the liquid level of the metering bin 121;

[0072] The control box 150 calculates the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip as the metered amount according to formula (2):

[0073] V = n V0 + V1 (2);

[0074] In formula (2), n is the number of times a concrete mixer truck unloads to fill the metering bin 121 in a fully loaded state, V0 is the nominal capacity of the metering bin 121, and V1 is the volume of ready-mixed concrete when the metering bin 121 is not fully loaded.

[0075] In order to ensure the continuous operation of the concrete pumping equipment, the construction site concrete pumping metering method provided by the embodiment of the present invention may further include:

[0076] Infrared sensor 190 detects changes in the liquid level in silo 120 of the concrete pumping equipment in real time. Control box 150 adjusts the discharge speed of discharge pump 130 of construction site concrete pumping metering device 100 based on the changes in the liquid level in silo 120, ensuring that the ready-mixed concrete in silo 120 of the concrete pumping equipment maintains a certain liquid level. This allows construction site concrete pumping metering device 100 and concrete pumping equipment to operate in coordination. Thus, by adjusting the discharge speed of discharge pump 130 through control box 150, the pumping speed of the concrete pumping equipment is coordinated, ensuring the continuity of the pumping operation.

[0077] In order to facilitate monitoring of the actual usage of ready-mixed concrete in a concrete pouring project, an embodiment of the present invention provides a construction site concrete pumping metering method, in which the control box 150 displays the accumulated value of the metered usage of the ready-mixed concrete on a display connected to the control box 150 in real time.

[0078] To facilitate monitoring of actual concrete usage during the construction phase, control box 150 uploads the real-time usage data to a cloud server. This data can then be downloaded from the cloud server via mobile devices such as mobile phones and computers, providing a basis for calculating the actual usage of ready-mixed concrete. Actual usage can also be used to monitor the quality of concrete pouring projects, preventing shoddy construction.

[0079] The construction site concrete pumping metering device 100 and method provided by the embodiment of the present invention unloads the ready-mixed concrete in the concrete mixer truck into the metering bin 121 of the construction site concrete pumping metering device 100 through the concrete mixer truck, and transports the ready-mixed concrete in the metering bin 121 to the concrete pumping equipment through the discharge pump 130. The concrete in the metering bin 121 is then pumped into the concrete pouring project by the concrete pumping equipment, thereby achieving the unloading of the concrete mixer truck and the assistance of the concrete pumping equipment, ensuring the continuity of the pouring operation; and also overcoming the problem that the concrete mixer truck cannot directly unload the concrete into the concrete pumping equipment due to the height difference between the concrete mixer truck and the concrete pumping equipment. In particular, the height of the silo 120 can be adjusted by the height-adjustable frame to adapt to the height difference between the concrete mixer truck and the concrete pumping equipment, thereby avoiding the loss of ready-mixed concrete due to excessive unloading drop, and avoiding the problem that the height difference is too small and the unloading cannot be achieved.

[0080] The construction site concrete pumping metering device 100 and method provided by the embodiment of the present invention, the control box 150 counts the amount of ready-mixed concrete transported by a concrete mixer truck in a single transportation as the metering amount according to the nominal capacity of the metering bin 121 and the number of full load fillings. The control box 150 counts the cumulative value of the metering amount to determine the real-time actual amount of the concrete pouring project, thereby determining the real-time actual amount of the concrete pouring project, achieving the accuracy, real-time and automatic measurement of the actual amount of the concrete pouring project, and avoiding the problem of low efficiency, easy omissions and large errors in counting the metering amount of the ready-mixed concrete of the concrete mixer truck through a floor scale, which leads to errors with the actual amount and affects the settlement cost of the ready-mixed concrete.

[0081] The construction site concrete pumping metering device 100 and method provided by the embodiment of the present invention can achieve ready-mixed concrete metering while ensuring concrete pumping.

[0082] The construction site concrete pumping metering device 100 and method provided by the embodiment of the present invention have the advantages of small size, small occupied area, and convenient arrangement at the construction site, overcoming the problems of large occupied area, high construction difficulty and high cost of the layout of the scale at the construction site.

[0083] The construction site concrete pumping and metering device 100 and method provided in embodiments of the present invention facilitate the movement of the construction site concrete pumping and metering device 100 to any construction area via a mobile support 110, enabling concrete pouring operations to be performed at any location where the concrete pumping equipment is deployed. To ensure the stability of the construction site concrete pumping and metering device 100 and prevent the mobile support 110 from moving due to the impact of gravity during unloading, the support can be locked using locking wheels, thereby improving the stability of the mobile support 110 when installed in the desired location.

[0084] The construction site concrete pumping metering device 100 and method provided by the embodiment of the present invention enables the concrete mixer truck to discharge material into the feed bin 122 when the metering bin 121 is in a closed state, thereby ensuring the continuity of the concrete mixer truck's unloading.

[0085] The present invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some embodiments of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention described, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A construction site concrete pumping metering device, characterized in that: It is installed between the discharge hopper of the concrete mixer truck and the pump silo of the concrete pumping equipment, and includes: Mobile stand; A silo is fixedly mounted on the movable support, and is divided into a feed silo and a metering silo by an electric partition plate; A discharge pump is connected to the metering bin; A discharge pipe, connected to the discharge pump; a control box connected to the electric compartment plate and disposed on the mobile support, for calculating the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip as a metered amount based on the nominal capacity of the metering bin and the number of full-load fillings; There are multiple pressure sensors, all connected to the control box, and respectively arranged at the top and bottom of the metering bin, for detecting the pressure values ​​at the top and bottom of the metering bin. When the pressure values ​​detected by the pressure sensors at the top and bottom of the metering bin are both 0, the control box determines that the metering bin is in an empty state; when the pressure values ​​detected by the pressure sensors at the top and bottom of the metering bin are both greater than 0, the control box determines that the metering bin is in a fully loaded state. A visual camera is connected to the control box and arranged at the top of the feed bin. When the unloading amount of the remaining ready-mixed concrete of a concrete mixer truck is less than the nominal capacity of the metering bin, the control box calculates the volume of the ready-mixed concrete in the metering bin when it is not fully loaded according to the liquid level height of the metering bin detected by the visual camera and the bottom area of ​​the metering bin when it is not fully loaded by formula (1): V1=h(S0+S1) / 2 (1); In formula (1), V1 is the volume of ready-mixed concrete in the metering bin when it is not fully loaded, S0 is the bottom area of ​​the metering bin, and S1 is the area at the liquid level of the metering bin; The control box calculates the amount of ready-mixed concrete transported by a concrete mixer truck as the metering amount according to formula (2): V = n V0 + V1 (2); In formula (2), n is the number of times a concrete mixer truck unloads to fill the metering bin in a fully loaded state, V0 is the nominal capacity of the metering bin, and V1 is the volume of ready-mixed concrete when the metering bin is not fully loaded; The control box calculates the cumulative value of the metered usage to determine the real-time actual usage of the concrete pouring project.

2. The construction site concrete pumping metering device according to claim 1, characterized in that: The movable bracket comprises a frame body and movable wheels with a locking function arranged at the lower end thereof.

3. The construction site concrete pumping metering device according to claim 1, characterized in that: The electric dividing plate includes a sliding track arranged on the material bin, a pull-out plate slidingly arranged on the sliding track, a driving mechanism for driving the pull-out plate to be slidably connected on the sliding track, and a flexible cloth is arranged between the outer walls of the feed bin and the metering bin.

4. The construction site concrete pumping metering device according to claim 1, characterized in that: The silo is a rectangular trough or a trapezoidal trough; or the feed silo is a rectangular trough, and the metering silo is a trapezoidal trough.

5. The construction site concrete pumping metering device according to claim 1, characterized in that: Also includes: a cover plate, arranged at the end of the discharge pipe; An infrared sensor is connected to the control box and is arranged on the cover plate. It is used to detect changes in the liquid level in the pump silo of the concrete pumping equipment in real time. The control box adjusts the discharge speed of the discharge pump of the concrete pumping metering device at the construction site according to the changes in the liquid level in the pump silo, so that the pump silo of the concrete pumping equipment maintains a certain liquid level of ready-mixed concrete, so that the concrete pumping metering device and the concrete pumping equipment at the construction site can work in coordination.

6. The construction site concrete pumping metering device according to claim 1, characterized in that: A controller is arranged in the control box, the controller is connected to a display, and the display is arranged on the control box.

7. A construction site concrete pumping metering method, characterized in that: The construction site concrete pumping metering device according to claim 5 comprises: Step S1: Move the concrete pumping equipment to the concrete pouring project site, move the construction site concrete pumping metering device to the concrete pumping equipment, connect the discharge pipe to the pump silo of the concrete pumping equipment, move the concrete mixer truck to the construction site concrete pumping metering device, and align the discharge hopper of the concrete mixer truck with the silo of the concrete pumping metering device at the construction site to discharge the concrete; Step S2: Connect the concrete pumping metering device at the construction site to a power source through a control box, detect the pressure values ​​at the top and bottom of the metering bin through a pressure sensor, and detect the liquid level in the bin through a visual camera; Step S3, when the pressure sensor detects that the pressure values ​​at the top and bottom of the metering bin are both 0, the control box determines that the metering bin is in an unloaded state, controls the discharge pump to be in a stopped state, and controls the electric partition plate to be in an open state to connect the feed bin with the metering bin, so that the ready-mixed concrete of the concrete mixer truck is unloaded into the metering bin; when the pressure sensor detects that the pressure values ​​at the top and bottom of the metering bin are both greater than 0, the control box determines that the metering bin is in a full-loaded state, counts the number of full-load fillings of the metering bin, and controls the electric partition plate to be in a closed state to isolate the metering bin from the feed bin, so that the ready-mixed concrete in the concrete mixer truck is unloaded into the feed bin; the control box also controls the discharge pump to be in an on state, and transports the ready-mixed concrete in the fully loaded metering bin to the pump bin of the concrete pumping equipment through the discharge pipe, and the ready-mixed concrete loaded in its pump bin is pumped into the concrete pouring project by the concrete pumping equipment; Step S4: The control box counts the amount of ready-mixed concrete transported by a concrete mixer truck in a single trip based on the nominal capacity of the metering bin and the number of full-load fillings as the metering amount. The control box calculates the cumulative value of the metering amount to determine the real-time actual amount of concrete pouring. In step S4, it also includes: When the remaining ready-mixed concrete unloading amount of a concrete mixer truck is less than the nominal capacity of the metering bin, the control box calculates the volume of the ready-mixed concrete in the metering bin when it is not fully loaded based on the liquid level height of the metering bin detected by the visual camera and the bottom area of ​​the metering bin using formula (1): V1=h(S0+S1) / 2 (1); In formula (1), V1 is the volume of ready-mixed concrete in the metering bin when it is not fully loaded, S0 is the bottom area of ​​the metering bin, and S1 is the area at the liquid level of the metering bin; The control box calculates the amount of ready-mixed concrete transported by a concrete mixer truck as the metering amount according to formula (2): V = n V0 + V1 (2); In formula (2), n is the number of times a concrete mixer truck is unloaded to fill the metering bin in a fully loaded state, V0 is the nominal capacity of the metering bin, and V1 is the volume of ready-mixed concrete when the metering bin is not fully loaded.

8. The construction site concrete pumping metering method according to claim 7, characterized in that: Also includes: The infrared sensor detects the changes in the liquid level in the pump silo of the concrete pumping equipment in real time. The control box adjusts the discharge speed of the discharge pump of the concrete pumping metering device at the construction site according to the changes in the liquid level in the pump silo, so that the pump silo of the concrete pumping equipment maintains a certain liquid level of ready-mixed concrete, and the concrete pumping metering device and the concrete pumping equipment at the construction site work in coordination.

9. The construction site concrete pumping metering method according to claim 7, characterized in that: The control box displays the accumulated value of the metered usage of the ready-mixed concrete on a display connected to the control box in real time.

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