Negative-pressure grouting control system and control method for assembly type component sleeve branch bin joints

Abstract

The invention discloses a control system and a control method for negative-pressure grouting of an assembly type component sleeve branch bin node. The control system comprises intelligent plugging equipment and a system main controller. The intelligent plugging equipment is detachably connected with each interface on the connection node area of the assembly type component; and the system main controller is connected with the intelligent plugging equipment and is used for intelligently controlling the intelligent plugging equipment. The intelligent plugging equipment comprises a mortar sensor, a pressure sensor, a plugging actuator and a plugging controller. The plugging controller analyzes and judges the grouting weight detected by the mortar sensor or the air pressure, detected by the pressure sensor, in the intelligent plugging equipment bin, and then controls the plugging actuator to execute plugging, so that intelligent control over the negative pressure grouting process is achieved; the problems that traditional grouting plumpness is mainly judged based on experience of workers, errors are easily caused, and waste is caused due to improper grouting pressure control are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-end intelligent equipment, and in particular to a negative pressure grouting control system for a prefabricated component casing compartment node and a control method thereof. Background Art

[0002] With the development of building industrialization, prefabricated buildings have become the development direction of major cities. The connection of prefabricated building component nodes is a key link in the construction process of prefabricated buildings. At present, the level of refinement and numerical control of grouting construction technology is relatively low. The control of grouting pressure and grouting amount mainly depends on the workers' experience and operation level. There are often false holes and incomplete grouting due to improper control of grouting pressure during grouting construction, or improper control of grouting pressure, resulting in waste and large-scale pollution of component cross-section.

[0003] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention

[0004] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a negative pressure grouting control system and a control method for the casing compartment nodes of an assembled component are provided, aiming to solve the problem that the control of the pressure and amount of grouting in the prior art mainly depends on the experience level and operation level of the workers, and there are often problems such as false holes and incomplete grouting caused by improper control of grouting pressure during grouting construction, or waste and large-scale pollution of the component cross-section.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a prefabricated component casing compartment node negative pressure grouting control system, wherein the system comprises:

[0007] An intelligent plugging device, which is detachably connected to each interface on the connection node area of ​​the prefabricated component, and is used to control, monitor, warn and execute plugging of the negative pressure environment of the connection node area;

[0008] A system main controller, the system main controller is connected to the intelligent blocking device and is used for intelligently controlling the intelligent blocking device;

[0009] Wherein, the intelligent blocking device comprises:

[0010] A mortar sensor, wherein the mortar sensor is used to detect the grouting weight;

[0011] A pressure sensor, the pressure sensor is used to detect the air pressure in the intelligent plugging device compartment;

[0012] A blocking actuator, which is connected to both the mortar sensor and the pressure sensor, and is used to perform blocking after the grouting weight or the air pressure in the intelligent blocking device chamber reaches a warning;

[0013] A plugging controller is connected to the mortar sensor, the pressure sensor and the plugging actuator, and is used to control the plugging actuator to perform plugging after analyzing and judging the grouting weight or the air pressure in the intelligent plugging equipment bin, so as to realize intelligent control of the negative pressure grouting process.

[0014] In one implementation, the intelligent blocking device includes: a front-end conical connector and a cubic micro-container, wherein the interface on the connection node area between the front-end conical connector and the assembled component is connected by threads and a rubber sealing strip, and the mortar sensor, the pressure sensor, the blocking actuator and the blocking controller are arranged in the cubic micro-container.

[0015] In a second aspect, an embodiment of the present invention further provides a control method for the above-mentioned prefabricated component casing compartment node negative pressure grouting control system, wherein the control method comprises:

[0016] After completing the component sealing construction process for the connection node area of ​​the prefabricated component, conduct an air tightness test in the hole of the connection node area;

[0017] After completing the air tightness test, obtain the negative pressure requirement of the grouting material, and perform negative pressure process operation on the connection node area according to the negative pressure requirement;

[0018] When the negative pressure environment of the connection node area reaches the negative pressure requirement, the grouting process is started, and the grouting weight is detected according to the mortar sensor and the air pressure in the intelligent plugging equipment bin is detected according to the pressure sensor;

[0019] When the grouting weight or the air pressure in the intelligent plugging equipment chamber reaches the warning level, the plugging actuator will execute the plugging and stop the grouting.

[0020] In one implementation, after completing the component sealing construction process for the connection node area of ​​the prefabricated component, performing an in-hole air tightness test of the connection node area includes:

[0021] After completing the component sealing construction process for the connection node area of ​​the prefabricated component, the air inlet pipe is connected, and after removing impurities in the hole, each interface on the connection node area is detachably connected to the intelligent plugging device;

[0022] Carry out air tightness test in the holes of the connection node area, and make timely corrections when the intelligent sealing equipment shows abnormal air pressure.

[0023] In one implementation, performing a negative pressure process operation on the connection node area according to the negative pressure requirement includes:

[0024] Adjust the negative pressure parameter to the maximum negative pressure warning value;

[0025] Open the grouting port connected to the intelligent plugging device, and use an air pump to perform an air extraction process;

[0026] When each intelligent plugging device displays that the air pressure has reached the maximum negative pressure warning value, the vacuuming process is stopped.

[0027] In one implementation, when the grouting weight or the air pressure in the intelligent plugging device chamber reaches the warning, the plugging is performed based on the plugging actuator, including:

[0028] Based on the preset first judgment model, it is judged whether the grouting weight reaches the warning, and when the grouting weight reaches the warning, the ventilation pipe in the bin is blocked based on the blocking actuator;

[0029] or,

[0030] Based on the preset second judgment model, it is judged whether the air pressure in the intelligent blocking device compartment reaches the warning level, and when the air pressure in the intelligent blocking device compartment reaches the warning level, the ventilation pipe in the compartment is blocked based on the blocking actuator.

[0031] In one implementation, the first judgment model is:

[0032] ∑ΔGj / Gmax-Gj>0.85,

[0033] Among them, Gj is the grouting weight detected at time j, and ΔGj is the difference between the mortar weight and the weight at the previous moment.

[0034] In one implementation, the second judgment model is:

[0035] ∑ΔFi / Fmax-Fi>0.9,

[0036] Among them, Fi is the air pressure value in the warehouse detected at time i, ΔFi is the difference between the air pressure in the warehouse and the air pressure in the previous moment; Fmax is the maximum theoretical air pressure value in the warehouse of the intelligent plugging equipment.

[0037] In one implementation, the method further includes:

[0038] After the grouting solidifies for a preset time, the intelligent plugging devices installed on each interface on the connection node area are dismantled.

[0039] In one implementation, the method further includes:

[0040] Based on the system main controller, the detection data in each negative pressure grouting process is recorded and archived.

[0041] Beneficial effects: Compared with the prior art, the present invention provides a prefabricated component casing compartment node negative pressure grouting control system including an intelligent plugging device and a system main controller. The intelligent plugging device is detachably connected to each interface on the connection node area of ​​the prefabricated component, and is used to realize the control, monitoring, early warning and plugging execution of the negative pressure environment of the connection node area; the system main controller is connected to the intelligent plugging device, and is used for intelligent control of the intelligent plugging device. Among them, the intelligent plugging device includes: a mortar sensor, a pressure sensor, a plugging actuator and a plugging controller. The mortar sensor is used to detect the grouting weight; the pressure sensor is used to detect the air pressure in the intelligent plugging device compartment; the plugging actuator is connected to the mortar sensor and the pressure sensor, and is used to perform plugging after the grouting weight or the air pressure in the intelligent plugging device compartment reaches the early warning; the plugging controller is connected to the mortar sensor, the pressure sensor and the plugging actuator, and is used to control the plugging actuator to perform plugging after analyzing and judging the grouting weight or the air pressure in the intelligent plugging device compartment, so as to realize intelligent control of the negative pressure grouting process. It can be seen that the present invention analyzes and judges the grouting weight detected by the mortar sensor or the air pressure in the intelligent plugging equipment bin detected by the pressure sensor through the plugging controller, and then controls the plugging actuator to execute the plugging, so as to realize the intelligent control of the negative pressure grouting process, and improves the traditional grouting fullness which is mainly based on the staff's experience judgment and prone to errors, and the waste caused by improper grouting pressure control. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of an intelligent plugging device in an intelligent integrated grouting pumping equipment system provided in an embodiment of the present invention.

[0043] Figure 2 A schematic structural diagram of an intelligent plugging device in an intelligent integrated grouting pumping equipment system provided in an embodiment of the present invention.

[0044] Figure 3 A flowchart of a preferred embodiment of a control method for an intelligent integrated grouting pumping equipment system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The present embodiment provides a negative pressure grouting control system for casing compartment nodes of prefabricated components, and the control system includes an intelligent plugging device and a system main controller. The intelligent plugging device is detachably connected to each interface on the connection node area of ​​the prefabricated component, and is used to realize the control, monitoring, early warning and plugging of the negative pressure environment of the connection node area. The system main controller is connected to the intelligent plugging device for intelligent control of the intelligent plugging device. Therefore, there are multiple intelligent plugging devices provided in the present embodiment, and each interface on the connection node area of ​​the prefabricated component is respectively connected to an intelligent plugging device. Furthermore, as Figure 1 As shown in , the intelligent plugging device of this embodiment includes: a mortar sensor, a pressure sensor, a plugging actuator and a plugging controller. The mortar sensor is used to detect the grouting weight; the pressure sensor is used to detect the air pressure in the intelligent plugging device bin; the plugging actuator is connected to the mortar sensor and the pressure sensor, and is used to perform plugging after the grouting weight or the air pressure in the intelligent plugging device bin reaches the warning; the plugging controller is connected to the mortar sensor, the pressure sensor and the plugging actuator, and is used to control the plugging actuator to perform plugging after analyzing and judging the grouting weight or the air pressure in the intelligent plugging device bin, so as to realize the intelligent control of the negative pressure grouting process. It can be seen that in this embodiment, the plugging controller can analyze and judge the grouting weight detected by the mortar sensor or the air pressure in the intelligent plugging device bin detected by the pressure sensor, and then control the plugging actuator to perform plugging, so as to realize the intelligent control of the negative pressure grouting process, which improves the traditional grouting fullness mainly based on the experience of the staff, which is easy to cause errors, and the improper control of the grouting pressure causes waste.

[0047] In this embodiment, a single-chip microcomputer PCL is provided in the system main controller, which is used to control various components in the intelligent blocking device. In addition, this embodiment can also develop a human-machine operation interface for inputting operation instructions. After receiving the operation instructions, the single-chip microcomputer PCL can execute the control of the intelligent blocking device. The system main controller of this embodiment also integrates various control algorithms, which are pre-set by programming. Specifically, the programmer writes the corresponding algorithm program according to the scheduling requirements of the intelligent blocking device.

[0048] It is used to control the intelligent plugging device to perform data analysis and judgment and execute plugging to achieve intelligent plugging. Before installing the intelligent plugging device in the connection node area of ​​the prefabricated component, the embodiment can select the corresponding process flow and set the algorithm parameters in the human-machine interface. In addition, the system main controller also includes a communication module to facilitate data transmission with the dispatching intelligent plugging device. The system main controller can also record and store data of the execution process of the intelligent plugging device.

[0049] Specifically, the structure of the intelligent blocking device of this embodiment is as follows: Figure 2 The intelligent plugging device includes: a front-end conical connector and a cubic micro-container, wherein the front-end conical connector and the interface on the connection node area of ​​the assembled component are connected by threads and rubber sealing strips. Figure 2 It can be seen that a local grouting port (i.e., an interface on the connection node area) is provided on the wall grouting sleeve, and a threaded gel material is provided on the local grouting port of the wall, and the local grouting port of the wall is threadedly connected to the front conical connector. The mortar sensor, the pressure sensor, the blocking actuator and the blocking controller are arranged in the cubic micro-container. Before the PC component is further designed, a hole glue interface is installed, and the interface and the front conical connector of the intelligent blocking device are designed as a threaded glue connection design, which meets the air tightness and detachability requirements of the connection port. In addition, the intelligent blocking device also includes a blocking port, a vent pipe and a communication module, which is convenient for intelligent blocking judgment. The intelligent blocking device of this embodiment is connected to the system main controller. After the system main controller receives the data detected by the mortar sensor and the pressure sensor, it will make a blocking judgment, and then after judging that the grouting weight or the air pressure in the intelligent blocking device compartment reaches the warning, the blocking actuator is controlled to perform blocking, thereby meeting the grouting requirements and avoiding errors caused by manual experience judgment.

[0050] During specific implementation, this embodiment first executes the plugging process control flow. After completing the component sealing construction process flow for the connection node area of ​​the prefabricated component, the air inlet pipe is connected, the air inlet pipe is opened, and the impurities in the hole are removed by stamping. Then, each interface on the connection node area (including the single node of the casing or the node area of ​​the compartment) of the prefabricated component is connected to the intelligent plugging device, and the air tightness test in the hole of the connection node area is started. Then, after completing the air tightness test, this embodiment executes the negative pressure process control flow. This embodiment obtains the negative pressure requirements corresponding to the grouting material, and then controls the negative pressure environment of the connection node area to meet the requirements. Specifically, first adjust the negative pressure parameter to the maximum negative pressure warning value -Fmax. Then, open the grouting port connected to the intelligent plugging device, and use an air pump to perform the exhaust process. When all the intelligent plugging devices show that the air pressure reaches the maximum negative pressure warning value, it means that the connection node area has reached a negative pressure environment at this time and meets the negative pressure requirements of the grouting material, so the exhaust process can be stopped and the grouting process can be entered.

[0051] Furthermore, the present embodiment detects the grouting weight through a mortar sensor and the air pressure in the intelligent plugging equipment bin through a pressure sensor. After detecting the grouting weight and the air pressure in the intelligent plugging equipment bin, the present embodiment executes a plugging monitoring and control process, which can be specifically analyzed and judged based on the preset first judgment model and the second judgment model respectively. When the grouting weight or the air pressure in the intelligent plugging equipment bin reaches the warning level, the plugging is executed based on the plugging actuator and the grouting is stopped.

[0052] Specifically, the first judgment model of this embodiment is:

[0053] ∑ΔGj / Gmax-Gj>0.85,

[0054] Among them, Gj is the grouting weight detected at time j, ΔGj is the difference between the mortar weight at the previous moment, and Gmax is the maximum theoretical grouting weight.

[0055] During the grouting process, the mortar sensor will detect the weight of the injected mortar in real time, and analyze the detected grouting weight according to the above-mentioned first judgment model. At time j, the total change of grouting from the start of grouting to time j in the grouting process can be calculated by calculating ∑ΔGj. When the ratio of the total change of grouting to the maximum theoretical grouting weight and the difference between the grouting weight at time j is greater than 0.85, it means that the grouting weight has reached the warning level, indicating that the grouting is full. At this time, blockage can be performed based on the blocking actuator. Specifically, the blocking actuator can be controlled to block the vent pipe and stop grouting.

[0056] The second judgment model of this embodiment is:

[0057] ∑ΔFi / Fmax-Fi>0.9,

[0058] Among them, Fi is the air pressure value in the warehouse detected at time i, ΔFi is the difference between the air pressure in the warehouse and the air pressure in the previous moment; Fmax is the maximum theoretical air pressure value in the warehouse of the intelligent plugging equipment.

[0059] During the grouting process, the pressure sensor will detect the air pressure in the bin of the intelligent plugging equipment in real time, and analyze the detected air pressure in the bin of the intelligent plugging equipment according to the above-mentioned second judgment model. At time i, the total change in the air pressure in the bin of the intelligent plugging equipment from the start of grouting to time i during the grouting process can be calculated by calculating ∑ΔF i. When the ratio of the total change in the air pressure in the bin to the maximum theoretical air pressure value and the difference between the air pressure in the bin at time i is greater than 0.9, it means that the air pressure in the bin of the intelligent plugging equipment has reached the warning level, indicating that the grouting is full at this time. At this time, the blocking can be performed based on the blocking actuator. Specifically, the blocking actuator can be controlled to block the blocking port in the bin of the intelligent plugging equipment and stop grouting.

[0060] It can be seen that in this embodiment, the plugging controller can analyze and judge the grouting weight detected by the mortar sensor or the air pressure in the intelligent plugging device bin detected by the pressure sensor, and then control the plugging actuator to perform the plugging. After the intelligent plugging device of the uppermost hole completes the plugging, the grouting is stopped. After the grouting is stopped, after the grouting solidifies for a preset time (such as 2 hours), the intelligent plugging devices installed on each interface of the connection node area are disassembled, and the grouting process of an assembled component is completed.

[0061] Based on the above embodiments, the present invention also provides a control method for a negative pressure grouting control system applied to a prefabricated component casing compartment node. Figure 3 As shown in , the control method of this embodiment includes the following steps:

[0062] Step S100: After completing the component sealing construction process for the connection node area of ​​the prefabricated component, perform an air tightness test in the hole of the connection node area.

[0063] Specifically, the present embodiment first executes the plugging process control flow. After completing the component sealing construction process flow for the connection node area of ​​the prefabricated component, connect the air inlet pipe, open the air inlet pipe, remove impurities in the hole by stamping, and then connect each interface on the connection node area of ​​the prefabricated component (including the single node of the casing or the sub-compartment node area) to the intelligent plugging device, and start the air tightness test in the hole of the connection node area. When performing the air tightness test, the present embodiment can obtain the air pressure value detected by the pressure sensor in the intelligent plugging device in real time, and make corrections in time when the air pressure is abnormal, thereby completing the air tightness control detection of the single node of the casing or the sub-compartment node area.

[0064] Step S200: After completing the air tightness test, obtain the negative pressure requirement of the grouting material, and perform negative pressure process operation on the connection node area according to the negative pressure requirement.

[0065] After completing the air tightness test, the present embodiment executes the negative pressure process control flow. The present embodiment obtains the negative pressure requirements corresponding to the grouting material, and then controls the negative pressure environment of the connection node area to meet the requirements. Specifically, first adjust the negative pressure parameters to the maximum negative pressure warning value - Fmax. Then, open the grouting port connected to the intelligent plugging device, and use an air pump to perform the vacuum process. When all the intelligent plugging devices show that the air pressure has reached the maximum negative pressure warning value, it means that the connection node area has reached a negative pressure environment and meets the negative pressure requirements of the grouting material. Therefore, the vacuum process can be stopped and the grouting process can be entered.

[0066] Step S300: When the negative pressure environment of the connection node area reaches the negative pressure requirement, the grouting process is started, and the grouting weight is detected according to the mortar sensor and the air pressure in the intelligent plugging equipment bin is detected according to the pressure sensor.

[0067] Whether the grouting is full and whether it meets the process requirements is affected by the grouting weight and the grouting pressure. In this embodiment, the grouting weight can be detected by a mortar sensor to determine whether the grouting is full. The grouting weight can be used to measure whether the grouting is in place. The mortar sensor is a weight sensor. In addition, the intelligent plugging device in this embodiment is connected to each interface in the connection node area, and is provided with a pressure sensor. The air pressure during grouting can be directly detected by the pressure sensor in the intelligent plugging device. Therefore, the air pressure in the intelligent plugging device bin is detected by the pressure sensor, which can also reflect the grouting pressure. Based on this, this embodiment detects the grouting weight by a mortar sensor and the air pressure in the intelligent plugging device bin by a pressure sensor, so that analysis and judgment can be performed based on the grouting weight or the air pressure in the bin in subsequent steps to achieve intelligent plugging.

[0068] Step S400: When the grouting weight or the air pressure in the intelligent plugging equipment chamber reaches the warning level, the plugging actuator performs the plugging and stops the grouting.

[0069] After detecting the grouting weight and the air pressure in the intelligent plugging equipment bin, this embodiment executes the plugging monitoring and control process, which can be specifically analyzed and judged based on the preset first judgment model and the second judgment model respectively. When the grouting weight or the air pressure in the intelligent plugging equipment bin reaches the warning level, the plugging is executed based on the plugging actuator and the grouting is stopped.

[0070] Specifically, the first judgment model of this embodiment is:

[0071] ∑ΔGj / Gmax-Gj>0.85,

[0072] Among them, Gj is the grouting weight detected at time j, ΔGj is the difference between the mortar weight at the previous moment, and Gmax is the maximum theoretical grouting weight.

[0073] During the grouting process, the mortar sensor will detect the weight of the injected mortar in real time, and analyze the detected grouting weight according to the above-mentioned first judgment model. At time j, the total change of grouting from the start of grouting to time j in the grouting process can be calculated by calculating ∑ΔGj. When the ratio of the total change of grouting to the maximum theoretical grouting weight and the difference between the grouting weight at time j is greater than 0.85, it means that the grouting weight has reached the warning level, indicating that the grouting is full. At this time, blockage can be performed based on the blocking actuator. Specifically, the blocking actuator can be controlled to block the vent pipe and stop grouting.

[0074] The second judgment model of this embodiment is:

[0075] ∑ΔFi / Fmax-Fi>0.9,

[0076] Among them, Fi is the air pressure value in the warehouse detected at time i, ΔFi is the difference between the air pressure in the warehouse and the air pressure in the previous moment; Fmax is the maximum theoretical air pressure value in the warehouse of the intelligent plugging equipment.

[0077] During the grouting process, the pressure sensor will detect the air pressure in the chamber of the intelligent plugging equipment in real time, and analyze the detected air pressure in the chamber of the intelligent plugging equipment according to the above-mentioned second judgment model. At time i, the total change in the air pressure in the chamber of the intelligent plugging equipment from the start of grouting to time i during the grouting process can be calculated by calculating ∑ΔF i. When the ratio of the total change in the air pressure in the chamber to the maximum theoretical air pressure value and the difference between the air pressure in the chamber at time i are greater than 0.9, it means that the air pressure in the chamber of the intelligent plugging equipment reaches the warning level at this time, indicating that the grouting is full at this time. At this time, the blockage can be performed based on the blockage actuator. Specifically, the blockage actuator can be controlled to block the ventilation pipe in the chamber of the intelligent plugging equipment and stop grouting.

[0078] It can be seen that in this embodiment, the plugging controller can analyze and judge the grouting weight detected by the mortar sensor or the air pressure in the intelligent plugging device bin detected by the pressure sensor, and then control the plugging actuator to perform the plugging. After the intelligent plugging device of the uppermost hole completes the plugging, the grouting is stopped. After the grouting is stopped, after the grouting solidifies for a preset time (such as 2 hours), the intelligent plugging devices installed on each interface of the connection node area are disassembled, and the grouting process of an assembled component is completed.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A negative pressure grouting control system for prefabricated component casing compartment nodes, characterized in that: The system comprises: An intelligent plugging device, which is detachably connected to each interface on the connection node area of ​​the prefabricated component, and is used to control, monitor, warn and execute plugging of the negative pressure environment of the connection node area; A system main controller, the system main controller is connected to the intelligent blocking device and is used for intelligently controlling the intelligent blocking device; Wherein, the intelligent blocking device comprises: A mortar sensor, wherein the mortar sensor is used to detect the grouting weight; A pressure sensor, the pressure sensor is used to detect the air pressure in the intelligent plugging device compartment; A blocking actuator, which is connected to both the mortar sensor and the pressure sensor, and is used to perform blocking after the grouting weight or the air pressure in the intelligent blocking device chamber reaches a warning; A plugging controller is connected to the mortar sensor, the pressure sensor and the plugging actuator, and is used to control the plugging actuator to perform plugging after analyzing and judging the grouting weight or the air pressure in the intelligent plugging equipment bin, so as to realize intelligent control of the negative pressure grouting process.

2. The negative pressure grouting control system for casing compartment nodes of prefabricated components according to claim 1 is characterized in that: The intelligent plugging device includes: a front-end conical connector and a cubic micro-container, wherein the interface on the connection node area between the front-end conical connector and the assembled component is connected by threads and rubber sealing strips, and the mortar sensor, the pressure sensor, the plugging actuator and the plugging controller are arranged in the cubic micro-container.

3. A control method for the negative pressure grouting control system of the prefabricated component casing compartment node according to claim 1 or 2, characterized in that: The control method comprises: After completing the component sealing construction process for the connection node area of ​​the prefabricated component, conduct an air tightness test in the hole of the connection node area; After completing the air tightness test, obtain the negative pressure requirement of the grouting material, and perform negative pressure process operation on the connection node area according to the negative pressure requirement; When the negative pressure environment of the connection node area reaches the negative pressure requirement, the grouting process is started, and the grouting weight is detected according to the mortar sensor and the air pressure in the intelligent plugging equipment bin is detected according to the pressure sensor; When the grouting weight or the air pressure in the intelligent plugging equipment chamber reaches the warning level, the plugging actuator will execute the plugging and stop the grouting.

4. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 3 is characterized in that: After completing the component sealing construction process for the connection node area of ​​the prefabricated component, an air tightness test in the hole of the connection node area is performed, including: After completing the component sealing construction process for the connection node area of ​​the prefabricated component, the air inlet pipe is connected, and after removing impurities in the hole, each interface on the connection node area is detachably connected to the intelligent plugging device; Carry out air tightness test in the holes of the connection node area, and make timely corrections when the intelligent sealing equipment shows abnormal air pressure.

5. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 3 is characterized in that: The performing of negative pressure process operation on the connection node area according to the negative pressure requirement includes: Adjust the negative pressure parameter to the maximum negative pressure warning value; Open the grouting port connected to the intelligent plugging device, and use an air pump to perform an air extraction process; When each intelligent plugging device displays that the air pressure has reached the maximum negative pressure warning value, the vacuuming process is stopped.

6. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 3 is characterized in that: When the grouting weight or the air pressure in the intelligent plugging equipment chamber reaches the warning, the plugging is performed based on the plugging actuator, including: Based on the preset first judgment model, it is judged whether the grouting weight reaches the warning, and when the grouting weight reaches the warning, the ventilation pipe in the bin is blocked based on the blocking actuator; or, Based on the preset second judgment model, it is judged whether the air pressure in the intelligent blocking device compartment reaches the warning level, and when the air pressure in the intelligent blocking device compartment reaches the warning level, the ventilation pipe in the compartment is blocked based on the blocking actuator.

7. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 6 is characterized in that: The first judgment model is: ∑ΔGj / Gmax-Gj>0.85, Among them, Gj is the grouting weight detected at time j, and ΔGj is the difference between the mortar weight and the weight at the previous moment.

8. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 6 is characterized in that: The second judgment model is: ∑ΔFi / Fmax-Fi>0.9, Among them, Fi is the air pressure value in the warehouse detected at time i, ΔFi is the difference between the air pressure in the warehouse and the air pressure in the previous moment; Fmax is the maximum theoretical air pressure value in the warehouse of the intelligent plugging equipment.

9. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 3 is characterized in that: The method further comprises: After the grouting solidifies for a preset time, the intelligent plugging devices installed on each interface on the connection node area are dismantled.

10. The control method of the negative pressure grouting control system for the casing compartment node of the prefabricated component according to claim 3 is characterized in that: The method further comprises: Based on the system main controller, the detection data in each negative pressure grouting process is recorded and archived.

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