Test pit water injection test detection system

Abstract

The utility model belongs to the technical field of test pit water injection test equipment, and discloses a test pit water injection test detection system which comprises a water injection test device, a data acquisition device and a data processing device, the water injection test device comprises a side enclosure frame, cover plates and a test assembly, the side enclosure frame forms a test area, and the cover plates are relatively slidably connected to the two ends of the side enclosure frame; the test assembly is arranged in the test area; the data acquisition device comprises a driving assembly and an acquisition assembly; the driving assembly is in driving connection with the cover plate; the acquisition assembly is arranged on the test assembly and is used for acquiring parameters; and the data processing device is electrically connected with the acquisition assembly and is used for receiving the parameters acquired by the acquisition assembly. By arranging the side enclosure frame and the cover plate on the test assembly, the problem of inaccurate test data caused by environmental factors is solved; by arranging the driving assembly and the acquisition assembly, the problem that the test result is influenced by data errors caused by manual reading is solved; and by arranging the data processing device, the problem of personnel recording errors is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of test pit water injection test equipment, and specifically relates to a test pit water injection test detection system. BACKGROUND

[0002] The test pit water injection test instrument and equipment can measure the permeability parameters of unsaturated soil, and the single-ring method is suitable for sand and silt tests, and the double-ring method is suitable for clay tests. With the detection of soil permeability, the traditional test pit water injection test has limitations under engineering requirements.

[0003] For example, the Chinese utility model patent with the publication number CN218995065U discloses a test pit water injection test device, which specifically discloses a test ring, a flow bottle assembly, and a support for placing the flow bottle assembly, the flow bottle assembly includes a flow bottle, a sealing plug arranged in the bottle opening of the flow bottle, and an air inlet pipe and a water outlet pipe arranged on the sealing plug, the test ring includes a soil insertion part and a transparent observation part, the placing plate of the support is provided with a bottle body placing opening, the air inlet pipe includes a first straight pipe, a corrugated pipe, and a second straight pipe arranged integrally, the support is provided with a positioning sleeve below the bottle body placing opening, and the second straight pipe is slidingly connected in the positioning sleeve. The utility model can conveniently observe the distance between the air inlet pipe, the water outlet pipe, and the water level line of the test ring, reduce the device debugging time, and avoid the air inlet pipe from being immersed in the water surface at one end in the flow bottle during adjustment, thereby avoiding accidental water discharge and improving the test efficiency.

[0004] However, due to the unpredictable environmental factors such as strong wind and rain during field and outdoor work, and the fact that the current instrument and equipment do not have a windproof and external interference protective cover, environmental factors and human readings can both cause insufficient accuracy of the equipment readings, making it difficult to accurately measure the permeability coefficient of soil, and the efficiency cannot meet the requirements of the rapid development of modern engineering. SUMMARY

[0005] Therefore, the test pit water injection test detection system is provided to solve the problem that the environmental factors such as strong wind and rain during field and outdoor work are difficult to predict, and the current instrument and equipment do not have a windproof and external interference protective cover, environmental factors and human readings can both cause insufficient accuracy of the equipment readings, making it difficult to accurately measure the permeability coefficient of soil, and the efficiency cannot meet the requirements of the rapid development of modern engineering.

[0006] The technical solution of the application to solve the above technical problems is as follows:

[0007] A test pit water injection test detection system, comprising:

[0008] The water injection test device, the data acquisition device and the data processing device, the water injection test device comprises a side frame, a cover plate and a test assembly, the side frame forms a test area, the cover plate is relatively slidably connected at both ends of the length direction of the side frame, and one end of the two cover plates is detachably connected with each other; the test assembly is arranged in the test area and used for measuring the permeability parameters of unsaturated soil; the data acquisition device comprises a driving assembly and an acquisition assembly, the driving assembly is arranged on the outer wall of the side frame and is drivingly connected with the cover plate to control the sliding of the cover plate; the acquisition assembly is arranged on the test assembly and used for acquiring parameters; and the data processing device is electrically connected with the acquisition assembly and used for receiving the parameters acquired by the acquisition assembly.

[0009] Preferably, the test assembly comprises a support, a water supply bottle and an iron ring, both ends of the support are detachably connected with the opposite sides of the side frame; at least one water supply bottle is arranged and inverted on the support, the water outlet of the water supply bottle is connected with the iron ring through a water pipe; the iron ring is arranged below the support and connected with the support through a connecting rope.

[0010] Preferably, the side frame is a transparent frame body, and the top of the opposite sides of the transparent frame body is provided with a clamping groove, the two sides of the cover plate extend into the clamping groove and can reciprocally slide along the extension direction of the clamping groove.

[0011] Preferably, the driving assembly comprises a motor, a gear and a rack arranged at the lower end surface of the cover plate, the motor is detachably connected to the outer wall of the side frame; the gear is drivingly connected with the shaft extension end of the motor, and the gear is engaged with the rack.

[0012] Preferably, both ends of the rack are provided with a cylinder, a spring and a movable tooth, the spring is sleeved on the cylinder, and both ends of the spring are connected with the movable tooth and the end of the rack respectively.

[0013] Preferably, the iron ring comprises an outer ring and an inner ring, the inner ring is fixed in the outer ring through a connecting plate, and the inner ring and the outer ring are coaxially arranged.

[0014] Preferably, the driving assembly further comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve which are electrically connected with the data processing device, the first electromagnetic valve is arranged at the water inlet of the water supply bottle and used for controlling the injection of water source; the second electromagnetic valve is arranged at the water outlet of the water supply bottle; and the third electromagnetic valve is arranged at one end of the water pipe away from the water supply bottle.

[0015] Preferably, the collecting assembly comprises a digital water level meter and a water level monitor, the digital water level meter is arranged in the water supply bottle for detecting the water storage amount in the water supply bottle, and the digital water level meter is electrically connected with the data processing device; the water level monitor is arranged on the iron ring for detecting the water level, and the water level monitor is electrically connected with the data processing device.

[0016] Preferably, the width of the cover plate is not less than the width of the side frame.

[0017] Preferably, the length of the cover plate is not more than half of the length of the side frame, and the seal rubber plate is arranged at the detachable connecting end of the two cover plates, and the seal rubber plate can seal the two cover plates.

[0018] The technical scheme adopted by the present application can achieve the following beneficial effects:

[0019] By arranging the side frame and the cover plate on the test assembly, the problem of inaccurate test data caused by environmental factors is solved; by arranging the driving assembly and the collecting assembly, the problem of data error caused by human reading is solved, thereby affecting the test results; by arranging the data processing device, the problem of personnel recording error is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Figure 1 is a partial schematic view of the test pit water injection test detection system of the present application.

[0021] Figure 2 Figure 2 is a partial side view of the test pit water injection test detection system of the present application.

[0022] Figure 3 Figure 3 is a side view of the test assembly of the test pit water injection test detection system of the present application.

[0023] Figure 4 Figure 4 is a schematic view of the iron ring of the test pit water injection test detection system of the present application.

[0024] Figure 5 Figure 5 is a schematic view of the driving assembly of the test pit water injection test detection system of the present application.

[0025] In the figure: water injection test device 100, side frame 110, clamping groove 111, cover plate 120, sealing rubber plate 121, test assembly 130, support 131, water supply bottle 132, iron ring piece 133, inner ring 1331, outer ring 1332, connecting plate 1333, drive assembly 210, motor 211, gear 212, rack 213, cylinder 214, spring 215, movable tooth 216, first electromagnetic valve 217, second electromagnetic valve 218, third electromagnetic valve 219, collection assembly 220, digital water level meter 221, water level monitor 222, data processing device 300. DETAILED DESCRIPTION

[0026] For the purpose of clarity, the present application will be described with reference to the accompanying drawings in which the preferred embodiments of the present application are shown. It is to be understood that the application can assume various alternative forms of implementation, all of which are intended to fall within the scope of the present application. Rather, the embodiments are intended to cover all modifications, equivalents and alternatives falling within the scope of the present application.

[0027] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end", and the like are used for the purpose of illustration only and are not intended to limit the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] Please refer to Figures 1 to 5The application provides a test pit water injection test detection system, which comprises a water injection test device 100, a data acquisition device and a data processing device 300. The water injection test device 100 comprises a side frame 110, a cover plate 120 and a test assembly 130. The side frame 110 forms a test area. The cover plate 120 is slidably connected to the two ends of the side frame 110 in the length direction, and one end of each of the two cover plates 120 is detachably connected to each other. The test assembly 130 is arranged in the test area and is used for measuring the permeability parameters of unsaturated soil. The data acquisition device comprises a driving assembly 210 and an acquisition assembly 220. The driving assembly 210 is arranged on the outer wall of the side frame 110 and is drivingly connected to the cover plate 120, so that the sliding of the cover plate 120 can be controlled. The acquisition assembly 220 is arranged on the test assembly 130 and is used for acquiring parameters. The data processing device 300 is electrically connected to the acquisition assembly 220 and is used for receiving the parameters acquired by the acquisition assembly 220.

[0030] Specifically, the side frame 110 is a cuboid box, a cuboid frame (the frame is surrounded by windproof cloth or plastic) or the like, but is not limited thereto. The cover plate 120 is a rubber plate, a glass plate or the like, but is not limited thereto. The two cover plates 120 are arranged at the two ends of the side frame 110 in the length direction, and the cover plates 120 can slide along the length direction of the side frame 110 through sliding. The test assembly 130 is a common test pit water injection test device 100.

[0031] The driving assembly 210 in the data acquisition device is a device capable of driving the cover plate 120 to slide along the length direction of the side frame 110, such as a telescopic air cylinder, a driving motor 211 or the like. The switch of the driving assembly 210 is electrically connected to the data processing device 300. The acquisition assembly 220 comprises sensors, water level monitors, inductors, timers and the like, and is used for real-time detection and feedback. The data processing device 300 is a computer or the like, which is electrically connected to the acquisition assembly 220, collects the detection parameters fed back by the acquisition assembly 220 and displays the parameters.

[0032] Further, the test assembly 130 is placed on the test site, the side frame 110 and the cover plate 120 are covered on the test assembly 130, the operator checks whether the driving assembly 210 is installed, and opens the driving assembly 210 to make the cover plate 120 slide backward; the collection assembly 220 is installed in the test assembly 130 and is electrically connected with the data processing device 300; the connection line is checked, and water is poured into the test assembly 130, after the pouring of water is completed, the driving assembly 210 is opened to slide reversely, the side frame 110 is sealed, and the test assembly 130 is opened to carry out the test pit water injection test, the collection assembly 220 detects and feeds back data to the data processing device 300 in real time during the test process, and the operator carries out artificial data calculation and summary on the data processing device 300, so that the test pit water injection test is completed.

[0033] The technical scheme of the test pit water injection test detection system can achieve the following beneficial effects:

[0034] By arranging the side frame 110 and the cover plate 120 on the test assembly 130, the problem that the test data is inaccurate due to environmental factors is solved; by arranging the driving assembly 210 and the collection assembly 220, the problem that the test result is affected by the error of the data caused by human reading is solved; by arranging the data processing device 300, the problem of personnel recording error is solved; by electrical connection, the problem that the reading accuracy of the equipment is insufficient due to the difficulty in predicting environmental factors such as strong wind and rain in the construction site and the field, and the fact that there is no windproof and external interference protective cover for the current instrument and equipment, and the environmental factors and human reading both cause the problem that the permeability coefficient of the soil is difficult to accurately measure, and the efficiency cannot meet the requirements of the rapid development of modern engineering is solved.

[0035] In the preferred embodiment of the application, in order to solve the problems of stability and precision, the test assembly 130 comprises a support 131, a water supply bottle 132 and a ring member 133, the two ends of the support 131 are respectively detachably connected with the two opposite sides of the side frame 110, at least one water supply bottle 132 is arranged and is inverted on the support 131, the water outlet of the water supply bottle 132 is connected with the ring member 133 through a water pipe, and the ring member 133 is arranged below the support 131 and is connected with the support 131 through a connecting rope.

[0036] The support 131 is welded by, but not limited to, reinforcing steel, square steel, etc. The two ends of the support 131 are connected with the two side walls of the side frame 110 in the length direction by bolts, clamping grooves 111, etc. The support 131 is provided with a fixing frame made of an iron ring, which is used to fix the water bottle 132. The fixing frame is in the shape of an inverted water bottle. The lower end surface of the support 131 is provided with a clamping ring, which is provided with a connecting rope. The other end of the connecting rope is connected with the iron ring piece 133. The iron ring piece 133 is used according to the test requirements. Single ring or double ring is used. The size is selected according to the test requirements. The bottle opening of the water bottle 132 is provided with a rubber plug, which is penetrated by a beveled glass tube. One end of the water pipe is connected with the water outlet of the beveled glass tube. The other end is connected with the iron ring piece 133. The capacity of the water bottle 132 is 5000 mL, and the graduation value is 25 mL.

[0037] By connecting the two ends of the support 131 with the opposite sides of the side frame 110, the support 131 and the side frame 110 become a whole, solving the stability problem of the test assembly 130 and the problem of difficult storage and easy loss. By providing the fixing frame on the support 131, the problem of loose water bottle 132 falling is solved. The capacity of the water bottle 132 is 5000 mL, and the graduation value is 25 mL, which improves the accuracy of detection.

[0038] Based on the above scheme, in order to operate more conveniently, the side frame 110 is a transparent frame, and the top of the opposite sides of the transparent frame is provided with a clamping groove 111. The two sides of the cover plate 120 extend into the clamping groove 111 and can reciprocate along the extension direction of the clamping groove 111.

[0039] The side frame 110 is a transparent frame made of, but not limited to, acrylic plate, plastic plate, etc. The clamping grooves 111 are provided on the two sides of the side frame 110 in the width direction. The length of the clamping groove 111 is the same as the length of the side frame 110. The two sides of the side frame 110 in the length direction are provided with through grooves. The two sides of one end of the cover plate 120 extend into the clamping groove 111 from the through grooves and can reciprocate along the extension direction of the clamping groove 111. The transparent frame is used, and a scale is provided on the iron ring piece 133. The scale is attached to the inner wall of the iron ring piece 133. By observing the scale on the outside of the side frame 110, the problem of opening the cover plate 120 successively is solved.

[0040] In order to solve the problem of reciprocating sliding of the cover plate 120, the driving assembly 210 comprises a motor 211, a gear 212 and a rack 213 arranged at the lower end surface of the cover plate 120. The motor 211 is detachably connected to the outer wall of the side wall frame 110. The gear 212 is drivingly connected to the shaft extension end of the motor 211, and the gear 212 is engaged with the rack 213. The two ends of the rack 213 are provided with a cylinder 214, a spring 215 and a movable tooth 216. The spring 215 is sleeved on the cylinder 214, and the two ends of the spring 215 are respectively connected to the movable tooth 216 and the end of the rack 213.

[0041] The outer wall top of both sides of the side frame 110 in length direction is fixed with a motor 211 (the motor 211 is a reversible motor 211. The switch can control the forward and reverse rotation and the closing of the motor 211), the shaft end of the motor 211 is connected with a gear 212; a rack 213 is arranged on the lower end surface of the cover plate 120, the position of the rack 213 corresponds to the position of the gear 212, and the length of the rack 213 is the same as the length of the cover plate 120; a power supply is arranged below the motor 211 and is fixedly connected with the outer side of the side frame 110 and is connected with the motor 211 on both sides of the side frame 110 respectively, and the rotating directions of the two motors 211 are just opposite; the teeth at the beginning end and the end of the rack 213 are both provided with a cylinder 214, a spring 215 and a movable tooth 216 are sleeved on the cylinder 214, and the two ends of the spring 215 are connected with the movable tooth 216 and the teeth at the beginning end (end) of the rack 213 respectively; when the cover plate 120 is in the initial state (the two cover plates 120 seal the side frame 110, and the gear 212 is engaged with the movable tooth 216 at the beginning end of the rack 213), the motor 211 is started to rotate in the first direction (the first direction is that the motor 211 at one end rotates counterclockwise, and the motor 211 at the other end rotates clockwise), so that the gear 212 moves from the movable tooth 216 at the beginning end of the rack 213 to the movable tooth 216 at the end of the rack 213, thereby making the two cover plates 120 move away from each other, when the cover plate 120 moves to the edge (when the gear 212 is engaged with the movable tooth 216 at the end of the rack 213), the gear 212 rotates at the movable tooth 216 at the end of the rack 213 or the motor 211 is closed to make the gear 212 not rotate any more, thereby ensuring that the cover plate 120 does not move any more; after the operation is completed, the motor 211 is started to rotate in the second direction (the second direction is that the motor 211 at one end rotates clockwise, and the motor 211 at the other end rotates counterclockwise, which is opposite to the first direction), so that the gear 212 moves from the movable tooth 216 at the end of the rack 213 to the movable tooth 216 at the beginning end of the rack 213, thereby making the two cover plates 120 move towards each other, when the two cover plates 120 at one end contact with each other (when the gear 212 is engaged with the movable tooth 216 at the beginning end of the rack 213), the gear 212 rotates at the movable tooth 216 at the beginning end of the rack 213 or the motor 211 is closed to make the gear 212 not rotate any more, thereby ensuring that the cover plate 120 does not move any more. Through the arrangement of the motor 211, the gear 212, the rack 213 and the movable tooth 216, the movement of the cover plate 120 is more convenient, and the problem that the operation is relatively complicated is solved.

[0042] In the above embodiment, in order to improve its practicability, the iron ring piece 133 comprises an outer ring 1332 and an inner ring 1331, the inner ring 1331 is fixed in the outer ring 1332 through a connecting plate 1333, and the inner ring 1331 is coaxially arranged with the outer ring 1332.

[0043] When the double ring method is used for detection, the connecting plate 1333 is arranged at the top of the outer ring 1332 and the inner ring 1331, so that the outer ring 1332 and the inner ring 1331 have the same height and are coaxially arranged; the water in the water supply bottle 132 enters the outer ring 1332 from the water inlet joint of the outer ring 1332 and then enters the space between the outer ring 1332 and the inner ring 1331 for double ring method detection; when the single ring method is used for detection, the connecting rope is removed and replaced with a single ring for detection; the operation is simpler and more convenient, and the device is more practical.

[0044] Based on the above scheme, in order to realize automatic control, the driving assembly 210 further comprises a first electromagnetic valve 217, a second electromagnetic valve 218 and a third electromagnetic valve 219, which are electrically connected with the data processing device 300; the first electromagnetic valve 217 is arranged at the water inlet of the water supply bottle 132 and is used for controlling the injection of the water source; the second electromagnetic valve 218 is arranged at the water outlet of the water supply bottle 132; and the third electromagnetic valve 219 is arranged at the end of the water pipe away from the water supply bottle 132.

[0045] The water supply bottle 132 is inverted on the support 131, the bottle opening of the water supply bottle 132 is penetrated by a rubber plug and an inclined glass tube, the second electromagnetic valve 218 is arranged at the end of the inclined glass tube close to the rubber plug, the other end of the water supply bottle 132 is provided with a water inlet pipe, the first electromagnetic valve 217 is arranged on the water inlet pipe, and the water inlet pipe is connected with a water source; the other end of the inclined glass tube is connected with an iron ring 133, and the third electromagnetic valve 219 is arranged at the connection position; the control switches of the first electromagnetic valve 217, the second electromagnetic valve 218 and the third electromagnetic valve 219 are connected with the data processing device 300 (provided with corresponding buttons for controlling the switches); further, the second electromagnetic valve 218 and the third electromagnetic valve 219 are closed (no water in the inclined glass tube), the first electromagnetic valve 217 is opened, water is poured into the water supply bottle 132, when the threshold value is reached, the first electromagnetic valve 217 is closed, the third electromagnetic valve 219 is opened first, and then the second electromagnetic valve 218 is opened, until the water in the iron ring 133 reaches the preset value, the second electromagnetic valve 218 is closed first, and then the third electromagnetic valve 219 is closed after the water in the inclined glass tube enters the iron ring 133, thereby completing the addition of water; the first electromagnetic valve 217, the second electromagnetic valve 218 and the third electromagnetic valve 219 are controlled by the data processing device 300, so as to solve the problems that it is difficult to manually control the sealing and the control is not accurate enough.

[0046] In the above scheme, in order to achieve more accurate detection, the collection component 220 includes a digital water level meter 221 and a water level monitor 222. The digital water level meter 221 is arranged in the water supply bottle 132 and is used to detect the water storage amount in the water supply bottle 132. The digital water level meter 221 is electrically connected to the data processing device 300. The water level monitor 222 is arranged on the iron ring member 133 and is used to detect the water level height. The water level monitor 222 is electrically connected to the data processing device 300.

[0047] The digital water level meter 221 is arranged in the water supply bottle 132. The water storage amount in the water supply bottle 132 when the first electromagnetic valve 217 and the second electromagnetic valve 218 are closed at the same time is detected (detected twice, the first time is the water storage amount in the water supply bottle 132 when the first electromagnetic valve 217 is opened to fill water into the water supply bottle 132 and then closed; the second time is the water storage amount in the water supply bottle 132 when the second electromagnetic valve 218 and the third electromagnetic valve 219 are opened, water flows into the iron ring member 133 to a preset value, and then the second electromagnetic valve 218 is closed). The water storage amount in the iron ring member 133 is calculated by the difference between the water storage amounts and by the operator. The water level monitor 222 is arranged on the inner wall of the iron ring member 133 (for example, the double-ring test, the water level monitor 222 is arranged on the inner wall of the inner ring 1331). The water level monitor 222 performs real-time monitoring to detect the water level of the iron ring member 133 seeping from the ground. The water level difference is calculated by the operator through multiple detections. The permeability coefficient is calculated by the formula. The detection equipment automatically detects to solve the problem of inaccurate manual reading, which leads to errors in calculation parameters.

[0048] In another embodiment of the present application, in order to solve the sealing problem, the width of the cover plate 120 is not less than the width of the side frame 110. The length of the cover plate 120 is not more than half the length of the side frame 110. The two cover plates 120 are detachably connected at one end. The sealing rubber plate 121 is arranged on the two cover plates 120. The sealing rubber plate 121 can seal the two cover plates 120.

[0049] The length of the cover plate 120 is half the length of the side frame 110. The width of the cover plate 120 is the length between the two clamping grooves 111 of the side frame 110. An L-shaped sealing rubber plate 121 is arranged at one end of one cover plate 120 away from the motor 211. An inverted L-shaped sealing rubber plate 121 is arranged at one end of the other cover plate 120. The two sealing rubber plates 121 on the two cover plates 120 are connected to achieve a sealing effect. The sealing rubber plate 121 increases the sealing effect. There is no rack 213 on the sealing rubber plate 121, which can limit the position and solve the problem that the cover plate 120 slides out of the clamping groove 111 and falls.

[0050] The above embodiments only express several implementation ways of the present application, and the description is specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A test pit water injection test system, characterized in that, include: The water injection test device includes a side frame, a cover plate, and a test component. The side frame forms a test area, and the cover plate is slidably connected to both ends of the side frame along its length, with one end of each cover plate being detachably connected to the other. The test component is located within the test area and is used to determine the permeability parameters of unsaturated soil. A data acquisition device includes a driving component and a data acquisition component. The driving component is disposed on the outer wall of the side frame and is drivenly connected to the cover plate, enabling control of the sliding of the cover plate. The data acquisition component is disposed on the test component and is used to acquire parameters. as well as A data processing device, electrically connected to the acquisition component, is used to receive parameters acquired by the acquisition component.

2. The test pit water injection test system according to claim 1, characterized in that, The test assembly includes a support, a water supply bottle, and an iron ring. The two ends of the support are detachably connected to the two sides opposite to the side frame. At least one water supply bottle is provided and placed upside down on the support. The outlet of the water supply bottle is connected to the iron ring through a water pipe. The iron ring is located below the support and is connected to the support through a connecting rope.

3. The test pit water injection test system according to claim 1, characterized in that, The side frame is a transparent frame, and the top of the transparent frame on both sides is provided with slots. The two sides of the cover plate extend into the slots and can slide back and forth along the extension direction of the slots.

4. The test pit water injection test system according to claim 1, characterized in that, The drive assembly includes a motor, a gear, and a rack disposed on the lower end face of the cover plate. The motor is detachably connected to the outer wall of the side frame. The gear is driven to the shaft extension end of the motor and meshes with the rack.

5. The test pit water injection test system according to claim 4, characterized in that, Both ends of the rack are provided with a cylinder, a spring, and a movable tooth. The spring is sleeved on the cylinder, and both ends of the spring are respectively connected to the movable tooth and the end of the rack.

6. The test pit water injection test system according to claim 2, characterized in that, The iron ring component includes an outer ring and an inner ring. The inner ring is fixed inside the outer ring by a connecting plate, and the inner ring and the outer ring are coaxially arranged.

7. The test pit water injection test system according to claim 2, characterized in that, The drive assembly also includes a first solenoid valve, a second solenoid valve, and a third solenoid valve, all electrically connected to the data processing device. The first solenoid valve is located at the inlet of the water supply bottle and is used to control the injection of water. The second solenoid valve is located at the outlet of the water supply bottle. The third solenoid valve is located at the end of the water pipe away from the water supply bottle.

8. The test pit water injection test system according to claim 2, characterized in that, The data acquisition components include an immersion digital water level gauge and a water level monitoring instrument. The immersion digital water level gauge is installed inside the water supply bottle to detect the amount of water stored in the water supply bottle, and the immersion digital water level gauge is electrically connected to the data processing device. The water level monitoring instrument is installed on the iron ring to detect the water level height, and the water level monitoring instrument is electrically connected to the data processing device.

9. The test pit water injection test system according to claim 1, characterized in that, The width of the cover plate is not less than the width of the side frame.

10. The test pit water injection test system according to claim 9, characterized in that, The length of the cover plate is no more than half the length of the side frame, and each of the two cover plates is provided with a sealing plate at one end that is detachably connected to each other, so that the two cover plates can be sealed together.

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