A polymer grouting waterproofing test device

Abstract

This invention relates to the field of waterproof testing technology, and more specifically discloses a polymer grouting waterproof testing device, including a base assembly. The base assembly includes a lower base and an upper base. A top cover assembly is installed on the top of the upper base. Connecting blocks are installed on both sides of the top cover assembly. A pressure-closing assembly is installed inside the top cover assembly. A pressure-boosting assembly and a flow-guiding assembly are installed inside the pressure-closing assembly. A template assembly is installed inside the upper base. A water-blocking adhesive plate is installed between the top cover assembly and the template assembly. This invention, by providing a test assembly and an opening and closing movable plate, facilitates the flow of water from the surface of the grouting material to the bottom through the opening and closing movable plate when leakage occurs, pushing the test assembly to move outward. The movement of the test assembly is used to detect the water pressure when leakage occurs. Combined with the moving distance of the opening and closing movable plate and the flow-guiding assembly, the waterproof performance of the grouting material under various widths of waterproof surfaces and water pressure values ​​can be tested.

Description

Technical Field

[0001] This invention relates to the field of waterproof testing technology, and more specifically to a polymer grouting waterproof testing device. Background Technology

[0002] Combining the treatment of mining subsidence with delamination grouting and filling technology is a new research direction for the prevention and control of geological disasters caused by mining subsidence. The mining-induced fractures in the rock strata formed by mining subsidence serve as channels for the flow and settlement of the filling grout. After the high-pressure grout fills the mining-induced fractures in the rock strata, it works together with the movement of the overlying strata to form a compacted bearing zone that controls surface subsidence.

[0003] Chinese invention patent CN108414425A discloses a testing system and method for the waterproof performance of grouting repair materials for shield tunnel joints. The system includes: a displacement loading control subsystem for placing and applying downward pressure to the elastic sealing gasket to be tested, comprising a test platform, a reaction frame on the test platform, and jacks on the reaction frame; a segment joint specimen module for supporting the elastic sealing gasket to be tested, placed on the test platform and receiving downward pressure from the jacks; a measurement subsystem connected to the segment joint specimen module, including a flow meter and a high-precision measuring cup for quantitatively detecting the amount of seepage; and a water pressure and grout loading control subsystem including a water pressure gauge, a water pressure loading device, and a grouting device for controlling the water pressure and grouting during loading or unloading onto the segment joint specimen module. Compared with existing technologies, this invention has advantages such as realistic simulation, applicability to different grouting repair materials, qualitative and quantitative evaluation, and reliable results.

[0004] Therefore, the current grouting inspection process typically uses a common method: filling the repair trench with grouting material and then using subsequent water injection to detect waterproofing. However, due to the fixed template, this method can only detect material differences when materials are changed, and it cannot detect the relationship between various influencing factors such as the thickness of the material itself, the width of the support surface, and the water pressure. This results in limited functionality and low inspection efficiency. In addition, existing inspection devices use high-pressure hydraulic rods for sealing and waterproofing to ensure safety during grouting, which undoubtedly increases the complexity of the structure, occupies a large space, and is inconvenient to use. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a polymer grouting waterproofing test device to solve the problems existing in the background art.

[0006] This invention provides the following technical solution: a polymer grouting waterproofing test device, comprising a base assembly, the base assembly including a lower base and an upper base, a top cover assembly installed on the top of the upper base, connecting blocks installed on both sides of the top cover assembly, a pressure-combining assembly installed inside the top cover assembly, a pressure-boosting assembly and a flow-guiding assembly installed inside the pressure-combining assembly, a template assembly installed inside the upper base, a water-blocking adhesive plate installed between the top cover assembly and the template assembly, a detection groove opened inside the upper base, a water pressure hole opened on the front of the detection groove, a test assembly installed inside the water pressure hole, a detection sliding groove opened on the side of the water pressure hole, a first positioning groove and a first sliding groove opened on the side of the detection groove, a control assembly installed inside the first sliding groove, and a mold-changing connecting block fixedly connected to both sides of the upper base outside the first sliding groove; connecting hole blocks are installed on the front and back of the lower base, and the connecting hole blocks are connected to the connecting rod blocks.

[0007] Furthermore, the testing assembly includes a water pressure testing rod, a testing connecting rod hinged to the side of the water pressure testing rod, a testing slider hinged to the other end of the testing connecting rod, the testing slider being installed inside a testing sliding groove, a scale groove being provided on the side of the testing sliding groove, and a displacement sensor being installed inside the testing sliding groove, the displacement sensor being used to collect information on the movement distance of the testing slider.

[0008] Furthermore, the upper cover assembly includes a cover plate body, the top of which is provided with a first grouting hole and a water injection hole. Connecting rod blocks are fixedly connected to both the front and back of the cover plate body, and the connecting rod blocks serve a positioning function. Multiple pressure boosting sub-holes are provided on the top of the cover plate body, and pressure boosting components are installed inside the pressure boosting sub-holes.

[0009] Furthermore, the control assembly includes a first motor and a threaded rod, with a sliding control block mounted on the outer side of the threaded rod, and the rotation of the first motor is controlled by a control unit.

[0010] Furthermore, the pressure-combining assembly includes a pressure-combining plate, with an inner rotating plate installed at the bottom of the pressure-combining plate. The inner rotating plate separates the upper and lower parts of the water injection hole and forms a flat bottom. The inner rotating plate is hinged to the bottom of the pressure-combining plate. A constant pressure hole is opened on the side of the water injection hole on the pressure-combining plate. A flow guiding assembly is installed at the other end of the constant pressure hole. The flow guiding assembly includes a water inlet detection rod, with a spherical connecting rod fixedly connected to the bottom of the water inlet detection rod. The spherical connecting rod is installed on the inner rotating plate. A baffle and a third spring are installed at the upper end of the water inlet detection rod. The third spring causes the flow guiding assembly to have a downward movement tendency. A height sensor is installed at the upper end of the water inlet detection rod. After the water flows through the constant pressure hole into the side chamber of the flow guiding assembly, the flow guiding assembly moves upward under pressure, making the water guide pipe connected to the constant pressure hole.

[0011] Furthermore, the template assembly includes a template body, a forming groove in the middle of the template body, the bottom of the forming groove communicating with the detection groove, opening and closing sliding grooves on both sides of the bottom of the forming groove, an opening and closing moving plate installed inside the opening and closing sliding groove, a guide groove and an injection groove on the upper surface of the template body, the two ends of the guide groove communicating with the forming groove and the injection groove, a second sliding groove and a snap-fit ​​groove on the bottom of the template body, a third sliding groove on the side of the snap-fit ​​groove, and a sealing groove on the outer side of the top of the template body, with a water-blocking adhesive plate installed inside the sealing groove.

[0012] Furthermore, the mold changing assembly includes a horizontal sliding rod, with mold changing blocks and spherical pressing heads fixedly connected to both ends of the horizontal sliding rod. The mold changing blocks have slots on their sides, and the mold changing assembly is fixedly connected to the mold changing connecting block through the slots. A second spring is installed on the outer side of the horizontal sliding rod.

[0013] Furthermore, the pressurizing assembly includes a pressurizing rod and a fixed threaded block. The fixed threaded block is installed inside the pressurizing assembly, and the pressurizing rod is installed inside the fixed threaded block by threads to achieve the connection between the upper cover assembly and the pressurizing assembly. The rotation of the pressurizing rod causes the pressurizing assembly to have a tendency to move up and down. A first spring is installed on the outside of the pressurizing rod inside the pressurizing assembly.

[0014] Furthermore, the base assembly is equipped with an information collection unit and a control unit. The control unit controls the exposed area on the upper surface of the opening and closing moving plate by controlling the start and stop of the first motor. The information collection unit collects the height information collected by the height sensor at the flow guide assembly, the width information at the opening and closing moving plate, and the moving distance information at the test assembly. The moving distance information is used to determine the pressure of the leakage.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. This invention, by incorporating a test component and an opening / closing movable plate, facilitates the flow of water from the surface of the grouting material to the bottom through the opening / closing movable plate when leakage occurs. This pushes the test component to move outward, and the change in movement of the test component is used to detect the water pressure when leakage occurs. Combined with the moving distance of the opening / closing movable plate and the flow guiding component, the waterproof performance of the grouting material can be tested under various widths of waterproof surfaces and water pressure values.

[0017] 2. By incorporating an inner rotating plate and a flow guiding component, this invention facilitates the flow of water through a constant pressure hole into the side chamber of the flow guiding component when the injection water pressure increases. Under the gradually increasing pressure, the flow guiding component moves upward, connecting the water guide pipe with the constant pressure hole, thus achieving both waterproof sealing of the grouting material and detection of the injection water pressure.

[0018] 3. By incorporating a mold-changing assembly, this invention facilitates the control of the opening and closing moving plate's lateral movement and contact with the spherical pressing head. This allows the mold-changing card block to disengage from the mold-changing connecting block, enabling the mold assembly to be directly removed upwards for convenient disassembly. Combined with the convenient installation process, this allows for the replacement of mold assemblies with different depths of forming grooves to form grouting material plates of different thicknesses, facilitating the testing of the impact of different thicknesses on waterproof performance and increasing the convenience of testing.

[0019] 4. By incorporating a pressure boosting component, this invention facilitates the use of a pressure boosting rod connected to a fixed threaded block. The rotation of the pressure boosting rod causes the fixed threaded block to descend, which in turn causes the first spring to apply downward pressure to the pressure-closing component. This reduces the gap between the pressure-closing component and the mold component, and when the pressure threshold is reached, the outer side of the molding groove is sealed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure assembly of the present invention.

[0022] Figure 3 This is a schematic diagram of the base assembly structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the upper cover assembly structure of the present invention.

[0024] Figure 5 This is a front view of the overall structure of the present invention.

[0025] Figure 6 This is a front cross-sectional view of the overall structure of the present invention.

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of structure B in the middle.

[0027] Figure 8 This is a schematic diagram of the template component structure of the present invention.

[0028] Figure 9 For the present invention Figure 1 Schematic diagram of structure A in the middle.

[0029] Figure 10 For the present invention Figure 6 Schematic diagram of the C-structure.

[0030] Figure 11 This is a schematic diagram of the booster assembly structure of the present invention.

[0031] The attached figures are labeled as follows: 1. Base assembly; 101. Lower base; 102. Upper base; 103. Detection groove; 104. Connecting hole block; 105. First sliding groove; 106. First positioning groove; 107. Water pressure hole; 108. Detection sliding groove; 109. Mold changing connecting block; 2. Upper cover assembly; 201. Cover plate body; 202. First grouting hole; 203. Water injection hole; 204. Connecting rod block; 205. Pressure boosting auxiliary hole; 3. Mold assembly; 301. Mold body; 302. Forming groove; 303. Sealing groove; 304. Guide groove; 305. Injection groove; 306. Second sliding groove; 307. Snap-fit ​​groove; 308. Third sliding groove; 309. Opening and closing sliding groove; 4. Closing pressure assembly; 40 1. Pressing plate; 402. Inner rotating plate; 403. Constant pressure hole; 404. Water guide hole; 5. Testing assembly; 501. Water pressure detection rod; 502. Detection connecting rod; 503. Detection slider; 6. Control assembly; 601. First motor; 602. Threaded rod; 603. Sliding control block; 7. Opening and closing moving plate; 8. Pressurizing assembly; 801. Pressurizing rod; 802. Fixed threaded block; 803. First spring; 9. Flow guiding assembly; 901. Water inlet detection rod; 902. Spherical connecting rod; 903. Water guide pipe; 10. Water-blocking rubber plate; 11. Connecting block; 12. Mold changing assembly; 1201. Horizontal sliding rod; 1202. Mold changing block; 1203. Second spring; 1204. Spherical pressing head. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The polymer grouting waterproofing test device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1 and Figure 2This invention provides a polymer grouting waterproofing test device, including a base assembly 1. The base assembly 1 includes a lower base 101 and an upper base 102. A top cover assembly 2 is installed on the top of the upper base 102. Connecting blocks 11 are installed on both sides of the top cover assembly 2. A pressure-compressing assembly 4 is installed inside the top cover assembly 2. A pressure-boosting assembly 8 and a flow-guiding assembly 9 are installed inside the pressure-compressing assembly 4. A template assembly 3 is installed inside the upper base 102. A water-blocking adhesive plate 10 is installed between the top cover assembly 2 and the template assembly 3. A detection groove 103 is formed inside the upper base 102. A water pressure hole 107 is provided on the front of the test groove 103. A test component 5 is installed inside the water pressure hole 107. A detection sliding groove 108 is provided on the side of the water pressure hole 107. A first positioning groove 106 and a first sliding groove 105 are provided on the side of the test groove 103. A control component 6 is installed inside the first sliding groove 105. A mold changing connecting block 109 is fixedly connected to both sides of the upper base 102 outside the first sliding groove 105. A connecting hole block 104 is installed on the front and back of the lower base 101. The connecting hole block 104 is connected to the connecting rod block 204.

[0034] In this embodiment, it should be specifically explained that: an information collection unit and a control unit are installed inside the base assembly 1. The control unit controls the exposed area of ​​the upper surface of the opening and closing moving plate 7 by controlling the start and stop of the first motor 601. The information collection unit collects the height information collected by the height sensor at the flow guiding assembly 9, the width information at the opening and closing moving plate 7, and the moving distance information at the test assembly 5. The moving distance information is used to determine the pressure of the water leakage.

[0035] The main difference between this embodiment and the prior art is that this embodiment uses the change of the support surface of the polymer grouting material to test the waterproof performance of the grouting material under extreme conditions and the water discharge performance under different water pressures. At the same time, the rapid mold changing method and pressurization method are used to enable the rapid testing of grouting materials of different thicknesses under the same environment. Specifically, it includes the test component 5, the opening and closing moving plate 7, and the flow guiding component 9.

[0036] The above structure is the main structure of this embodiment, which solves the problem that the current grouting material can only be tested on a single surface and under a single water pressure, and cannot be tested under multiple water pressure environments on the surface of the grouting material. The transmission method of the electrical signal is the existing structure, and the specific connection method of the electrical signal will not be described in detail in this embodiment.

[0037] Reference Figure 4The upper cover assembly 2 includes a cover plate body 201. The top of the cover plate body 201 is provided with a first grouting hole 202 and a water injection hole 203. Connecting rod blocks 204 are fixedly connected to both the front and back of the cover plate body 201. The connecting rod blocks 204 serve a positioning function. The top of the cover plate body 201 is provided with multiple pressure boosting secondary holes 205. Pressure boosting components 8 are installed inside the pressure boosting secondary holes 205. During grouting, the grouting material enters the interior of the forming groove 302 through the first grouting hole 202, the injection groove 305, and the guide groove 304 in sequence. The material is stabilized after standing.

[0038] In this embodiment, it should be specifically noted that the first grouting hole 202 and the water injection hole 203 are respectively connected to external pipes, and the connection method is not specifically limited here.

[0039] Reference Figure 5-6 The control component 6 includes a first motor 601 and a threaded rod 602. A sliding control block 603 is installed on the outside of the threaded rod 602. The rotation of the first motor 601 is controlled by the control unit. The rotation of the first motor 601 is proportional to the moving distance of the opening and closing moving plate 7, so that the test width of the grouting material changes under the control of the first motor 601.

[0040] In this embodiment, it should be specifically explained that during the detection process, as the inner rotating plate 402 rotates, the upper surface of the grouting material comes into complete contact with the water flow. At this time, the first motor 601 is controlled to drive the opening and closing moving plate 7 to move to both sides through the threaded rod 602. The information collection unit combines the moving distance and the dwell time of the opening and closing moving plate 7 to transmit the signal to the control unit to control the start and stop of the control component 6.

[0041] Reference Figure 6-7The pressure-combining assembly 4 includes a pressure-combining plate 401. An inner rotating plate 402 is installed at the bottom of the pressure-combining plate 401. The inner rotating plate 402 separates the upper and lower parts of the water injection hole 203 and forms a flat bottom. The inner rotating plate 402 is hinged to the bottom of the pressure-combining plate 401. A constant pressure hole 403 is opened on the side of the pressure-combining plate 401 near the water injection hole 203. A flow-guiding assembly 9 is installed at the other end of the constant pressure hole 403. The flow-guiding assembly 9 includes a water inlet detection rod 901. A spherical connecting rod 902 is fixedly connected to the bottom of the water inlet detection rod 901. The spherical connecting rod 902 is installed on the inner rotating plate 401. On 02, a baffle and a third spring are installed at the upper end of the water inlet detection rod 901. The third spring causes the flow guide assembly 9 to have a downward movement tendency. A height sensor is installed at the upper end of the water inlet detection rod 901. After the water flows into the side chamber of the flow guide assembly 9 through the constant pressure hole 403, the flow guide assembly 9 moves upward under the action of pressure, so that the water guide pipe 903 is connected to the constant pressure hole 403. The water flows into the bottom of the inner swirl plate 402 through the constant pressure hole 403 and the water guide hole 404. At this time, there is no longer a water pressure difference between the upper and lower water flows of the inner swirl plate 402, and the inner swirl plate 402 can rotate normally.

[0042] In this embodiment, it should be specifically noted that the change in water pressure causes a positive correlation between the rising height of the flow guiding component 9, the rotation angle of the inner rotating plate 402, and the combination of the control unit and the information collection unit to realize the detection of the injected water pressure and the control of the injected water flow.

[0043] Reference Figure 8 The template component 3 includes a template body 301. A forming groove 302 is provided in the middle of the template body 301. The bottom of the forming groove 302 is connected to the detection groove 103. Opening and closing sliding grooves 309 are provided on both sides of the bottom of the forming groove 302. An opening and closing moving plate 7 is installed inside the opening and closing sliding groove 309. A guide groove 304 and an injection groove 305 are provided on the upper surface of the template body 301. The two ends of the guide groove 304 are connected to the forming groove 302 and the injection groove 305. A second sliding groove 306 and a snap-fit ​​groove 307 are provided at the bottom of the template body 301. A third sliding groove 308 is provided on the side of the snap-fit ​​groove 307. A sealing groove 303 is provided on the outer side of the top of the template body 301. A water-blocking adhesive plate 10 is installed inside the sealing groove 303.

[0044] In this embodiment, it should be specifically noted that when changing the template, when the control component 6 controls the opening and closing moving plate 7 to move to the side and contact the spherical pressing head 1204, the template changing block 1202 disengages from the template changing connecting block 109, and the template component 3 can be directly taken out upwards, thus realizing the convenient disassembly of the template component 3.

[0045] Reference Figure 9The test assembly 5 includes a water pressure detection rod 501, a detection connecting rod 502 hinged to the side of the water pressure detection rod 501, and a detection slider 503 hinged to the other end of the detection connecting rod 502. The detection slider 503 is installed inside the detection sliding groove 108. When there is a leak, the gradual increase in water pressure pushes the test assembly 5 to move outward. The water pressure detection rod 501 causes the detection connecting rod 502 to drive the detection slider 503 to slide inside the detection sliding groove 108. Since the detection sliding groove 108 has a scale groove on its side, the change in the scale groove reflects the internal leakage situation when a leak occurs.

[0046] In this embodiment, it should be specifically noted that a displacement sensor is installed inside the detection sliding groove 108. The displacement sensor is used to collect information on the moving distance of the detection slider 503.

[0047] Reference Figure 10 The mold changing assembly 12 includes a horizontal sliding rod 1201. Both ends of the horizontal sliding rod 1201 are fixedly connected to a mold changing block 1202 and a spherical pressing head 1204. The mold changing block 1202 has a slot on its side. The mold changing assembly 12 is fixedly connected to the mold changing connecting block 109 through the slot. A second spring 1203 is installed on the outside of the horizontal sliding rod 1201. The second spring 1203 causes the horizontal sliding rod 1201 to tend to move toward the spherical pressing head 1204.

[0048] In this embodiment, it should be specifically explained that when the template component 3 needs to be replaced for testing of different thicknesses after the waterproof test is completed, the control unit controls the first motor 601 to rotate again, and controls the opening and closing moving plate 7 to move to both sides. As the side of the opening and closing moving plate 7 contacts the spherical pressing head 1204, the mold changing block 1202 disengages from the mold changing connecting block 109. At this time, the template component 3 can be directly taken out upwards, realizing the convenient disassembly of the template component 3.

[0049] Reference Figure 11 The pressurizing assembly 8 includes a pressurizing rod 801 and a fixed threaded block 802. The fixed threaded block 802 is installed inside the pressure-closing assembly 4. The pressurizing rod 801 is installed inside the fixed threaded block 802 by threads to connect the upper cover assembly 2 and the pressure-closing assembly 4. The rotation of the pressurizing rod 801 causes the pressure-closing assembly 4 to have a tendency to move up and down. A first spring 803 is installed on the outside of the pressurizing rod 801 inside the pressure-closing assembly 4. The first spring 803 tends to have the maximum width between the fixed threaded block 802 and the pressure-closing assembly 4. When the pressurizing rod 801 is tightened and the position of the pressure-closing assembly 4 remains unchanged, the first spring 803 is in a compressed state.

[0050] In this embodiment, it should be specifically explained that: when the overall initial fixation is completed, the pressure boosting component 8 is tightened. Since the pressure boosting rod 801 is threadedly connected to the fixed threaded block 802, the rotation of the pressure boosting rod 801 causes the fixed threaded block 802 to descend. The first spring 803 applies downward pressure to the pressure closing component 4. At this time, the gap between the pressure closing component 4 and the template component 3 decreases. When the pressure threshold is reached, the outer side of the forming groove 302 is sealed, and the internal grouting conditions are completed.

[0051] Working principle of the invention:

[0052] The main problem solved by this embodiment is to utilize the change of the support surface of the polymer grouting material to test the waterproof performance of the grouting material under extreme conditions and the water release performance under different water pressures. This solves the problem that the current grouting material can only be tested on a single surface and under a single water pressure, and cannot be tested on the surface of the grouting material under multiple water pressure environments. At the same time, by using a rapid mold changing method and a pressurization method, grouting materials of different thicknesses can still be quickly tested under the same environment, solving the current problem of difficulty in changing molds.

[0053] The specific steps are as follows:

[0054] During installation, the base assembly 1 is placed on the testing platform. The opening and closing moving plate 7 is removed from inside the opening and closing sliding groove 309, and the cleanliness of the upper surface of the opening and closing moving plate 7 is checked. After confirming that everything is correct, the two opening and closing moving plates 7 are moved to the middle position to form a closure and placed inside the base assembly 1. With the automatic engagement of the mold changing block 1202 and the mold changing connecting block 109, the mold assembly 3 and the base assembly 1 are fixed. Then, the water-blocking adhesive plate 10 is placed inside the sealing groove 303, and the upper cover assembly 2 and the closing pressure assembly 4 are placed on the base assembly 1 and aligned. Connecting rod block 204 and connecting hole block 104, connecting clip blocks 11 are installed at both ends of the upper cover assembly 2. As the water baffle plate 10 is located in the upper and lower grooves, the whole is initially fixed. Then tighten the pressure boosting assembly 8. Since the pressure boosting rod 801 is threadedly connected to the fixed threaded block 802, the rotation of the pressure boosting rod 801 causes the fixed threaded block 802 to descend. The first spring 803 applies downward pressure to the pressure closing assembly 4. At this time, the gap between the pressure closing assembly 4 and the template assembly 3 decreases. When the pressure threshold is reached, the outer side of the forming groove 302 is sealed, and the internal grouting conditions are completed.

[0055] As grout is injected into the interior through the first grouting hole 202, the grouting material sequentially enters the interior of the molding tank 302 through the first grouting hole 202, the injection groove 305, and the guide groove 304, and the material is stabilized after standing.

[0056] During the waterproofing process, water is injected into the device through the injection hole 203. At this time, due to the water-blocking effect of the inner swirl plate 402, the water flow cannot directly contact the grouting material. However, as the water pressure gradually increases, the water flow enters the side chamber of the flow guide component 9 through the constant pressure hole 403. The flow guide component 9 moves upward under the gradually increasing pressure, connecting the water guide pipe 903 with the constant pressure hole 403. The water flow enters the bottom of the inner swirl plate 402 through the constant pressure hole 403 and the water guide hole 404. At this time, there is no longer a water pressure difference between the upper and lower water flow of the inner swirl plate 402, and the inner swirl plate 402 can rotate normally. Since the rising height of the flow guide component 9 is related to the rotation angle of the inner swirl plate 402 and a height sensor is installed on the top of the water inlet detection rod 901, the change in the injected water pressure makes the rising height of the flow guide component 9 and the rotation angle of the inner swirl plate 402 positively correlated, so as to realize the detection of the injected water pressure and the control of the injected water flow.

[0057] During the testing process, as the inner rotating plate 402 rotates, the upper surface of the grouting material comes into complete contact with the water flow. At this time, the first motor 601 drives the opening and closing moving plate 7 to move to both sides through the threaded rod 602. The movement distance is controlled by the control unit. When the first distance is reached, there is a small exposed surface at the bottom of the grouting material inside the forming groove 302 on the upper surface of the opening and closing moving plate 7. As time goes by, combined with the pressure value change at the test component 5, the waterproof test of the first width under the first injection water pressure is completed. The above process is repeated, and the change of injection water pressure is controlled to achieve the limit test of multiple water pressures and widths.

[0058] When a leak occurs, the water on the surface of the grouting material flows into the detection groove 103 at the bottom through the opening and closing moving plate 7. As the water pressure gradually increases, it pushes the test component 5 to move outward. The movement of the test component 5 causes the detection connecting rod 502 to drive the detection slider 503 to slide inside the detection sliding groove 108. Since the detection sliding groove 108 has a scale groove on its side, the change of the scale groove reflects the internal leakage situation when a leak occurs.

[0059] When the waterproof test is completed and the template component 3 needs to be replaced for testing of different thicknesses, the first motor 601 is controlled to rotate again, and the opening and closing moving plate 7 is controlled to move to both sides. As the side of the opening and closing moving plate 7 contacts the spherical pressing head 1204, the mold changing block 1202 disengages from the mold changing connecting block 109. At this time, the template component 3 can be directly taken out upwards, realizing the convenient disassembly of the template component 3.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A polymer grouting waterproofing test device, comprising a base assembly (1), characterized in that: The base assembly (1) includes a lower base (101) and an upper base (102). A cover assembly (2) is installed on the top of the upper base (102). Connecting blocks (11) are installed on both sides of the cover assembly (2). A pressure-compressing assembly (4) is installed inside the cover assembly (2). A pressurizing assembly (8) and a flow guiding assembly (9) are installed inside the pressure-compressing assembly (4). A template assembly (3) is installed inside the upper base (102). A water-blocking rubber plate (10) is installed between the cover assembly (2) and the template assembly (3). A detection groove (103) is opened inside the upper base (102). A water pressure sensor is opened on the front of the detection groove (103). The test component (5) is installed inside the water pressure hole (107). The side of the water pressure hole (107) is provided with a detection sliding groove (108). The side of the detection groove (103) is provided with a first positioning groove (106) and a first sliding groove (105). The control component (6) is installed inside the first sliding groove (105). The mold changing connecting block (109) is fixedly connected to both sides of the upper base (102) outside the first sliding groove (105). The front and back of the lower base (101) are provided with connecting hole blocks (104). The connecting hole blocks (104) are connected to the connecting rod blocks (204). The test component (5) includes a water pressure testing rod (501), a testing connecting rod (502) is hinged to the side of the water pressure testing rod (501), and a testing slider (503) is hinged to the other end of the testing connecting rod (502). The testing slider (503) is installed inside the testing sliding groove (108). A scale groove is opened on the side of the testing sliding groove (108). A displacement sensor is installed inside the testing sliding groove (108). The displacement sensor is used to collect information on the movement distance of the testing slider (503). The control component (6) includes a first motor (601) and a threaded rod (602). A sliding control block (603) is installed on the outside of the threaded rod (602). The rotation of the first motor (601) is controlled by the control unit. The base assembly (1) is equipped with an information collection unit and a control unit. The control unit controls the exposed area of ​​the upper surface of the opening and closing moving plate (7) by controlling the start and stop of the first motor (601). The information collection unit collects the height information collected by the height sensor at the flow guide assembly (9), the width information at the opening and closing moving plate (7), and the moving distance information at the test assembly (5). The moving distance information is used to determine the pressure of the water leakage.

2. The polymer grouting waterproofing test device according to claim 1, characterized in that: The cover assembly (2) includes a cover plate body (201). The top of the cover plate body (201) is provided with a first grouting hole (202) and a water injection hole (203). The front and back of the cover plate body (201) are fixedly connected with connecting rod blocks (204). The connecting rod blocks (204) play a positioning role. The top of the cover plate body (201) is provided with multiple pressure boosting sub-holes (205). Pressure boosting components (8) are installed inside the pressure boosting sub-holes (205).

3. The polymer grouting waterproofing test device according to claim 1, characterized in that: The pressure-combining assembly (4) includes a pressure-combining plate (401), with an inner rotating plate (402) installed at the bottom of the pressure-combining plate (401). The inner rotating plate (402) separates the upper and lower parts of the water injection hole (203) and forms a flat bottom. The inner rotating plate (402) is hinged to the bottom of the pressure-combining plate (401). A constant pressure hole (403) is provided on the side of the pressure-combining plate (401) near the water injection hole (203). A flow guide assembly (9) is installed at the other end of the constant pressure hole (403). The flow guide assembly (9) includes a water inlet detection rod (901). A spherical connecting rod (902) is fixedly connected to the bottom of the measuring rod (901). The spherical connecting rod (902) is installed on the inner rotating plate (402). A baffle and a third spring are installed at the upper end of the water inlet detection rod (901). The third spring causes the flow guide assembly (9) to have a downward movement tendency. A height sensor is installed at the upper end of the water inlet detection rod (901). After the water flows into the side chamber of the flow guide assembly (9) through the constant pressure hole (403), the flow guide assembly (9) moves upward under the action of pressure, so that the water guide pipe (903) is connected to the constant pressure hole (403).

4. The polymer grouting waterproofing test device according to claim 1, characterized in that: The template component (3) includes a template body (301). A forming groove (302) is provided in the middle of the template body (301). The bottom of the forming groove (302) is connected to the detection groove (103). Opening and closing sliding grooves (309) are provided on both sides of the bottom of the forming groove (302). An opening and closing moving plate (7) is installed inside the opening and closing sliding groove (309). A guide groove (304) and an injection groove (305) are provided on the upper surface of the template body (301). The guide groove (304) has a flow channel (304) and an injection groove (305). Both ends are connected to the molding groove (302) and the injection groove (305). The bottom of the mold body (301) is provided with a second sliding groove (306) and a snap-fit ​​groove (307). The side of the snap-fit ​​groove (307) is provided with a third sliding groove (308). The mold changing component (12) is installed inside the third sliding groove (308). The outer side of the top of the mold body (301) is provided with a sealing groove (303). The water-blocking rubber plate (10) is installed inside the sealing groove (303).

5. The polymer grouting waterproofing test device according to claim 4, characterized in that: The mold changing assembly (12) includes a horizontal sliding rod (1201), and mold changing blocks (1202) and spherical pressing heads (1204) are fixedly connected to both ends of the horizontal sliding rod (1201). The mold changing blocks (1202) have slots on their sides. The mold changing assembly (12) is fixedly connected to the mold changing connecting block (109) through the slots. A second spring (1203) is installed on the outer side of the horizontal sliding rod (1201).

6. The polymer grouting waterproofing test device according to claim 1, characterized in that: The pressurizing assembly (8) includes a pressurizing rod (801) and a fixed threaded block (802). The fixed threaded block (802) is installed inside the pressure-closing assembly (4). The pressurizing rod (801) is installed inside the fixed threaded block (802) by threads to realize the connection between the upper cover assembly (2) and the pressure-closing assembly (4). The rotation of the pressurizing rod (801) causes the pressure-closing assembly (4) to have a tendency to move up and down. A first spring (803) is installed on the outside of the pressurizing rod (801) inside the pressure-closing assembly (4).

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