Grouting testing device

Abstract

The utility model belongs to the technical field of grouting testing, and provides a grouting testing device which comprises a testing water tank, a water supply mechanism, a placing plate and a lifting assembly. The grouting material is placed on the placing plate, flowing water is supplied into the test water tank through the water supply mechanism, then the flowing water dispersion resistance of the grouting material on the placing plate can be tested, after the test is completed, the driving piece is rotated to enable the transverse rod to slide upwards in the height direction of the test water tank, and then the placing plate is driven by the vertical rod to ascend and move out of the test water tank. And meanwhile, the vertical rod is detachably connected with the placing plate, and the placing plate and the grouting material can be weighed at the same time by disassembling the placing plate, so that the grouting material can be conveniently taken out of the testing water tank. And after weighing is completed, the weight of the grouting material after the test is completed can be obtained by subtracting the weight of the placing plate, so that the influence of a residual phenomenon on a weighing result is avoided, and the accuracy of testing the dynamic water dispersion resistance of the grouting material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting testing, and particularly relates to a grouting testing device. Background Technique

[0002] With the implementation of projects such as the development of mineral resources towards the deep, the development of water conservancy and hydropower projects, and the construction of urban rail transit, mine roadways, underground chambers, deep-buried tunnels, etc. are often affected by complex hydrogeological and engineering geological environments such as underground karsts, solution cavities, and fault fracture zones under dynamic water conditions. During the engineering construction process, disasters such as water inrush and leakage are likely to occur, seriously affecting the safety of engineering construction and operation. When treating complex rock and soil masses under dynamic water conditions, the grouting method is often used. However, the grouting material is easily diluted and lost under the action of dynamic water, which changes parameters such as the water-binder ratio of the original grouting material. It is difficult for the grouting material to remain in the formation, seriously affecting the mechanical properties of the grouting material stone body and the grouting effect. The anti-dynamic water dispersion performance is an important performance index of the material for treating complex rock and soil masses under dynamic water conditions. It is particularly important to test the anti-dynamic water dispersion performance of the grouting material.

[0003] At present, when testing the anti-dynamic water dispersion performance of the grouting material, the grouting material is mainly directly placed in the test water tank, and the grouting material is taken out and weighed after being washed by dynamic water to judge the loss amount of the grouting material. However, the method of directly placing the grouting material in the test water tank is not convenient for the subsequent removal of the grouting material from the test water tank, and it is easy to remain in the test water tank, thus affecting the subsequent weighing result and reducing the accuracy of the anti-dynamic water dispersion performance test of the grouting material. Therefore, in view of the above technical problems, a grouting testing device is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model proposes a grouting testing device, which is convenient for taking out the grouting material from the test water tank, avoids the phenomenon of residue, is convenient for the subsequent weighing of the grouting material, and improves the accuracy of the anti-dynamic water dispersion performance test of the grouting material.

[0005] A grouting testing device includes:

[0006] A test water tank, including an opposite water inlet end and a water drainage end;

[0007] A water supply mechanism, communicated with the water inlet end, for supplying dynamic water into the test water tank;

[0008] A placement plate, which can be placed on the inner bottom surface of the test water tank; and

[0009] The lifting assembly includes a cross bar, vertical rods and a driving member. The cross bar is slidably arranged at the top end of the test water tank along the height direction of the test water tank. Two groups of the vertical rods are oppositely arranged on the cross bar. The bottom ends of the two groups of vertical rods are respectively detachably connected to both sides of the placement plate. The driving member is rotatably arranged on the cross bar and connected to the test water tank. Rotating the driving member can drive the cross bar to slide so that the placement plate can be moved out of the test water tank.

[0010] The beneficial effects of the above-mentioned grouting test device are as follows:

[0011] By placing the grouting material on the placement plate and then supplying moving water into the test water tank through the water supply mechanism, the anti-moving water dispersion performance of the grouting material on the placement plate can be tested. After the test is completed, by rotating the driving member, the cross bar slides upward along the height direction of the test water tank. The upward sliding of the cross bar can drive the placement plate to rise and move out of the test water tank through the vertical rods, so that the grouting material on the placement plate is moved out of the test water tank, which is convenient for taking out the grouting material from the test water tank. At the same time, the vertical rods and the placement plate are detachably connected. By disassembling the placement plate, the placement plate and the grouting material can be weighed at the same time. After the weighing is completed, subtracting the weight of the placement plate itself can obtain the weight of the grouting material after the test is completed, avoiding the influence of the residual phenomenon on the weighing result and improving the accuracy of the anti-moving water dispersion performance test of the grouting material.

[0012] In one embodiment, limiting sliding grooves are formed on both sides of the placement plate, and limiting sliding blocks are arranged on the opposite sides of the two groups of vertical rods. The two groups of limiting sliding blocks are slidably arranged in the two groups of limiting sliding grooves. The placement plate can be disassembled from the vertical rods by sliding the placement plate to disengage the two groups of limiting sliding blocks from the two groups of limiting sliding grooves. It is convenient to disassemble the placement plate.

[0013] In one embodiment, spring pieces are arranged at the top ends of the two groups of limiting sliding blocks, and spring piece clamping grooves are formed on the top surfaces of the two groups of limiting sliding grooves. The two groups of spring pieces can be clamped in the two groups of spring piece clamping grooves. By arranging the cooperation of the spring pieces and the spring piece clamping grooves, the connection stability between the placement plate and the vertical rods can be improved, and the phenomenon that the placement plate slides or slips relative to the vertical rods during the impact of moving water or the lifting process can be avoided.

[0014] In one embodiment, the driving member includes a lifting screw; the lifting screw is rotatably arranged at one end of the cross bar, the other end of the cross bar is provided with a guide rod parallel to the lifting screw, both outer side walls of the test water tank are provided with connecting seats, the lifting screw is threadedly connected to one group of the connecting seats, and the guide rod can be slidably penetrated in the other group of the connecting seats along the height direction of the test water tank. The lifting screw can be driven to move upward by rotating the lifting screw to match the connecting seat thread, and the lifting screw can drive the cross bar to move upward by moving upward, and the cross bar can drive the placement plate to move upward through the vertical rod, so as to move the placement plate out of the test water tank, and the lifting screw can be driven to move downward by rotating the lifting screw in the opposite direction to match the connecting seat thread, and the lifting screw can drive the cross bar, the vertical rod and the placement plate to move downward by moving downward, so as to facilitate the resetting of the placement plate, and the lifting screw can be stopped to fix the cross bar, so as to fix the placement plate, and the placement plate is convenient to fix.

[0015] In one embodiment, a first placement groove is provided on the bottom surface of the test water tank corresponding to the placement plate, the placement plate is located in the first placement groove, and the top surface is flush with the bottom surface of the test water tank, and a second placement groove is provided on the inner side wall of the test water tank corresponding to the two groups of the vertical poles, the two groups of the vertical poles are respectively located in the two groups of the second placement grooves, and the side walls are flush with the inner side walls of the test water tank. By providing the first placement groove and the second placement groove, the surface of the placement plate and the vertical poles are flush with the inner wall of the test water tank, so as to avoid the placement plate and the vertical poles from affecting the flow of moving water, and further improve the accuracy of the test.

[0016] In one of the embodiments, a limit assembly is further included, wherein the limit assembly includes a limit frame, a receiving groove is provided on the top surface of the placement plate corresponding to the limit frame, the limit frame is arranged in the receiving groove, and the top surface is flush with the top surface of the placement plate, both ends of the placement plate are provided with a clearance groove connected to the receiving groove, and both ends of the limit frame are provided with a shift block, and two groups of the shift blocks can be slid along the height direction of the placement plate and are arranged in the two groups of the clearance grooves. By moving the two groups of shift blocks upward, the two groups of shift blocks can drive the limit frame to move upward, and the limit frame can protrude from the top surface of the placement plate when it moves upward. When the placement plate is disassembled or moved to tilt the placement plate and cause the grouting material on the placement plate to flow, the limit frame can block the flowing grouting material to prevent the grouting material from flowing out of the placement plate, thereby preventing the loss of grouting material from affecting subsequent weighing, thereby improving the accuracy of the device test.

[0017] In one embodiment, the shift block is provided with a first magnet, the top surface of the give way groove is provided with a second magnet, and the first magnet can be magnetically connected with the second magnet. When the shift block moves upward and drives the limit frame to move upward and protrude from the top surface of the placement plate, the shift block moves upward and is magnetically connected with the first magnet and the second magnet to fix the shift block, thereby fixing the limit frame, and fixing the limit frame to protrude from the top surface of the placement plate is convenient.

[0018] In one embodiment, the water supply mechanism includes a buffer box and a water pump; a water baffle is provided in the buffer box to divide the inner cavity of the buffer box into a buffer cavity and a temporary storage cavity, a plurality of through holes connecting the buffer cavity and the temporary storage cavity are provided at the bottom of the water baffle, one side of the buffer box is connected to the water inlet end, a plurality of drainage holes connected to the water inlet end are evenly provided on the side wall of the temporary storage cavity, the water outlet pipe of the water pump is connected to the buffer cavity, and the water outlet corresponds to the top of the water baffle, and the water inlet pipe of the water pump is connected to an external water source. By starting the water pump, the water inlet pipe draws external water source in and acts on the water baffle through the water outlet pipe. At this time, the water baffle can block and buffer the discharged water and make the buffered water fall into the bottom of the buffer cavity. The water at the bottom of the buffer cavity flows into the temporary storage cavity through multiple groups of through holes. When the water level in the temporary storage cavity is higher than the multiple groups of drainage holes, the water in the temporary storage cavity can flow into the test water tank through the multiple groups of drainage holes, which makes it convenient to supply moving water to the test water tank and avoids the impact force of water from acting on the grouting material, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 A three-dimensional structural schematic diagram of a grouting test device provided in one embodiment of the utility model;

[0021] Figure 2 for Figure 1 A three-dimensional structural schematic diagram of a grouting test device in another state is shown;

[0022] Figure 3 for Figure 1 An exploded view of a lifting assembly in a grouting test device is shown;

[0023] Figure 4 for Figure 1 An exploded view of a limit assembly in a grouting test device shown;

[0024] Figure 5 for Figure 1 A partial cross-sectional view of a water supply mechanism in a grouting test device is shown.

[0025] Reference Signs:

[0026] 10. Testing water tank; 101. Water inlet end; 102. Drainage end; 103. First placement groove; 104. Second placement groove; 105. Connecting seat;

[0027] 20. Placement board; 201. Limit sliding groove; 2011. Elastic piece clamping groove; 202. Storage groove; 203. Yielding groove;

[0028] 30. Lifting assembly; 301. Vertical rod; 3011. Limit sliding block; 3012. Spring piece; 302. Lifting screw rod; 3021. Handwheel; 303. Cross bar; 304. Guide rod;

[0029] 40. Limit frame; 401. Pushing block; 402. First magnet;

[0030] 50. Buffer box; 501. Water baffle; 5011. Through hole; 502. Buffer cavity; 503. Temporary storage cavity; 504. Drainage hole; 505. Water pump. Detailed Embodiment

[0031] Hereinafter, embodiments of the technical solution of the present utility model will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0032] Please refer to Figure 1 , Figure 5 , a grouting test device in an embodiment includes a testing water tank 10, a water supply mechanism, a placement board 20 and a lifting assembly 30.

[0033] Among them, the testing water tank 10 includes an opposite water inlet end 101 and a drainage end 102. The water supply mechanism is communicated with the water inlet end 101 and is used to supply moving water into the testing water tank 10. Specifically, the water supply mechanism includes a buffer box 50 and a water pump 505; a water baffle 501 is arranged in the buffer box 50 to divide the inner cavity of the buffer box 50 into a buffer cavity 502 and a temporary storage cavity 503. A plurality of groups of through holes 5011 communicating the buffer cavity 502 and the temporary storage cavity 503 are opened at the bottom of the water baffle 501. One side of the buffer box 50 is connected to the water inlet end 101. A plurality of groups of drainage holes 504 communicating with the water inlet end 101 are uniformly opened on the side wall of the temporary storage cavity 503. The water outlet pipe of the water pump 505 is communicated with the buffer cavity 502, and the water outlet corresponds to the top of the water baffle 501. The water inlet pipe of the water pump 505 is communicated with an external water source.

[0034] In the above embodiments, by starting the water pump 505, the water inlet pipe pumps in the external water source and acts on the water baffle 501 through the water outlet pipe. At this time, the water baffle 501 can block and buffer the incoming water and make the buffered water fall to the bottom of the buffer cavity 502. The water at the bottom of the buffer cavity 502 flows into the temporary storage cavity 503 through multiple groups of through holes 5011. When the water level in the temporary storage cavity 503 is higher than multiple groups of drain holes 504, the water in the temporary storage cavity 503 can flow into the test water tank 10 through multiple groups of drain holes 504, which is convenient for supplying dynamic water to the test water tank 10 and avoiding the impact force of water acting directly on the grouting material, thus improving the accuracy of the test.

[0035] Please refer to Figures 1 to 3 , in one embodiment, the placement plate 20 can be placed on the inner bottom surface of the test water tank 10. The lifting assembly 30 includes a cross bar 303, a vertical rod 301 and a driving member. The cross bar 303 is slidably arranged at the top of the test water tank 10 along the height direction of the test water tank 10. Two groups of vertical rods 301 are oppositely arranged on the cross bar 303. The bottom ends of the two groups of vertical rods 301 are detachably connected to both sides of the placement plate 20 respectively. The driving member is rotatably arranged on the cross bar 303 and connected to the test water tank 10. Rotating the driving member can drive the cross bar 303 to slide, so that the placement plate 20 can be moved out of the test water tank 10.

[0036] Specifically, limiting sliding grooves 201 are opened on both sides of the placement plate 20, and limiting sliding blocks 3011 are arranged on the opposite sides of the two groups of vertical rods 301. The two groups of limiting sliding blocks 3011 are slidably arranged in the two groups of limiting sliding grooves 201. The driving member includes a lifting screw rod 302; the lifting screw rod 302 is rotatably arranged at one end of the cross bar 303. A guide rod 304 parallel to the lifting screw rod 302 is arranged at the other end of the cross bar 303. Connecting seats 105 are arranged on the outer side walls of the two sides of the test water tank 10. The lifting screw rod 302 is threadedly connected to one of the connecting seats 105, and the guide rod 304 is slidably arranged in the other connecting seat 105 along the height direction of the test water tank 10. Specifically in this embodiment, a hand wheel 3021 is arranged at the top end of the lifting screw rod 302. By arranging the hand wheel 3021, it is convenient to drive the lifting screw rod 302 to rotate, and it is convenient and labor-saving to rotate the lifting screw rod 302.

[0037] In the above embodiments, the grouting material is placed on the placing plate 20, and then the water pump 505 is started to supply moving water into the test water tank 10, so that the anti-moving water dispersion performance of the grouting material can be tested. After the test is completed, the water pump 505 is turned off to stop supplying moving water, and the water in the test water tank 10 is discharged through the drainage end 102. Then, by rotating the lifting screw rod 302, the rotation of the lifting screw rod 302 and the threaded fit with the connecting seat 105 can drive the lifting screw rod 302 to move upward. When the lifting screw rod 302 moves upward, it can drive the cross bar 303 to move upward. When the cross bar 303 moves upward, it can drive the placing plate 20 to move upward through the vertical rod 301. When the placing plate 20 moves upward, it can drive the grouting material to move out of the test water tank 10, which is convenient for taking out the grouting material from the test water tank 10. Then, hold the placing plate 20 and slide it. When the placing plate 20 slides and the two limit sliding blocks 3011 are separated from the two limit sliding grooves 201, the placing plate 20 can be detached from the two vertical rods 301. It is convenient to disassemble the placing plate 20. Finally, the placing plate 20 and the grouting material are weighed simultaneously. After the weighing is completed, subtracting the weight of the placing plate 20 itself can obtain the weight of the grouting material after the test is completed, avoiding the influence of the residual phenomenon on the weighing result and improving the accuracy of the anti-moving water dispersion performance test of the grouting material.

[0038] Please refer to Figure 4 , on the basis of the above embodiments, further, spring pieces 3012 are provided at the tops of the two limit sliding blocks 3011, and elastic piece clamping grooves 2011 are formed on the top surfaces of the two limit sliding grooves 201. The two spring pieces 3012 can be clamped in the two elastic piece clamping grooves 2011. By setting the cooperation between the spring pieces 3012 and the elastic piece clamping grooves 2011, the connection stability between the placing plate 20 and the vertical rod 301 can be improved, avoiding the sliding and slipping phenomena of the placing plate 20 relative to the vertical rod 301 during the impact of moving water or the lifting process. When it is necessary to disassemble the placing plate 20, by sliding the placing plate 20, the spring pieces 3012 can be elastically deformed and separated from the elastic piece clamping grooves 2011.

[0039] On the basis of the above embodiments, further, a first placing groove 103 corresponding to the placing plate 20 is formed on the inner bottom surface of the test water tank 10. The placing plate 20 is located in the first placing groove 103, and the top surface is flush with the inner bottom surface of the test water tank 10. Second placing grooves 104 corresponding to the two vertical rods 301 are formed on the inner side wall of the test water tank 10. The two vertical rods 301 are respectively located in the two second placing grooves 104, and the side walls are flush with the inner side wall of the test water tank 10. By forming the first placing groove 103 and the second placing groove 104, the surfaces of the placing plate 20 and the vertical rod 301 are flush with the inner wall of the test water tank 10, avoiding the influence of the placing plate 20 and the vertical rod 301 on the flow of moving water and further improving the accuracy of the test.

[0040] Please refer to Figure 3 、 Figure 4In one embodiment, a limit assembly is further included, which includes a limit frame 40. A storage groove 202 is provided on the top surface of the placement plate 20 corresponding to the limit frame 40. The limit frame 40 is arranged in the storage groove 202, and the top surface is flush with the top surface of the placement plate 20. Both ends of the placement plate 20 are provided with a clearance groove 203 connected to the storage groove 202. Both ends of the limit frame 40 are provided with a shift block 401. Two groups of shift blocks 401 can be slid along the height direction of the placement plate 20 and are arranged in the two groups of clearance grooves 203.

[0041] In the above embodiment, by moving the two groups of shift blocks 401 upward, the upward movement of the two groups of shift blocks 401 can drive the limit frame 40 to move upward, and the upward movement of the limit frame 40 can protrude from the top surface of the placement plate 20. When the placement plate 20 is disassembled or the placement plate 20 is moved to tilt the placement plate 20 and the grouting material on the placement plate 20 flows, the limit frame 40 can block the flowing grouting material to prevent the grouting material from flowing out of the placement plate 20, thereby preventing the loss of grouting material from affecting subsequent weighing, thereby improving the accuracy of the device test.

[0042] On the basis of the above embodiment, further, a first magnet 402 is provided on the shift block 401, and a second magnet is provided on the top surface of the positioning groove 203, and the first magnet 402 can be magnetically connected with the second magnet. When the shift block 401 moves upward to drive the limit frame 40 to move upward to protrude the top surface of the placement plate 20, the shift block 401 moves upward to fix the shift block 401 through the magnetic connection between the first magnet 402 and the second magnet, thereby fixing the limit frame 40, and fixing the limit frame 40 to protrude the top surface of the placement plate 20 is convenient.

[0043] The specific implementation of the above-mentioned grouting test device is as follows:

[0044] During the test, the grouting material is placed on the placement plate 20 and located in the limit frame 40. Then, the water pump 505 is started to draw water from the external source into the buffer box 50, and the drawn water is buffered under the action of the water retaining plate 501. The buffered water flows into the test water tank 10 through multiple groups of drainage holes 504 to test the grouting material. The water passing through the grouting material is discharged from the drainage end 102, which facilitates the supply of moving water to the test water tank 10 and avoids the impact force of the water from acting on the grouting material, thereby improving the accuracy of the test.

[0045] After the test is completed, turn off the water pump 505 to stop supplying moving water. Then, by rotating the lifting screw rod 302, the rotation of the lifting screw rod 302 and the threaded fit with the connecting seat 105 can drive the lifting screw rod 302 to move upward. The upward movement of the lifting screw rod 302 can drive the cross bar 303 to move upward. The upward movement of the cross bar 303 can drive the placing plate 20 to move upward through the vertical rod 301. The upward movement of the placing plate 20 can drive the grouting material out of the test water tank 10, facilitating the removal of the grouting material from the test water tank 10. Then, move the two groups of sliders 401 upward to make the limiting frame 40 move upward and protrude from the top surface of the placing plate 20. The upward movement of the slider 401 can be magnetically connected by the first magnet 402 and the second magnet to fix the slider 401, thereby fixing the limiting frame 40, so as to prevent the grouting material from flowing out of the placing plate 20 and affecting the subsequent weighing, improving the accuracy of the device test. Then, hold and slide the placing plate 20. The sliding of the placing plate 20 first causes the spring piece 3012 to produce elastic deformation and separate from the spring piece slot 2011, and then makes the two groups of limiting sliders 3011 separate from the two groups of limiting chutes 201. At this time, the placing plate 20 can be removed from the two groups of vertical rods 301. It is convenient to disassemble the placing plate 20. Finally, weigh the placing plate 20 and the grouting material at the same time. After weighing, subtract the weight of the placing plate 20 itself to obtain the weight of the grouting material after the test is completed, avoiding the influence of residual phenomena on the weighing result and improving the accuracy of the test for the anti-moving water dispersion performance of the grouting material.

[0046] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A grouting test device, characterized in that: include: A test water tank (10) comprising an inlet end (101) and a drain end (102) opposite to each other; A water supply mechanism, connected to the water inlet (101), and used for supplying moving water into the test water tank (10); A placement plate (20) capable of being placed on the bottom surface of the test water tank (10); and The lifting assembly (30) comprises a cross bar (303), a vertical bar (301) and a driving member. The cross bar (303) is slidably arranged at the top of the test water tank (10) along the height direction of the test water tank (10). Two groups of vertical bars (301) are arranged on the cross bar (303) in a relative manner. The bottom ends of the two groups of vertical bars (301) are detachably connected to the two sides of the placement plate (20) respectively. The driving member is rotatably arranged on the cross bar (303) and connected to the test water tank (10). Rotating the driving member can drive the cross bar (303) to slide, so that the placement plate (20) can be moved out of the test water tank (10).

2. A grouting test device according to claim 1, characterized in that: Limiting slide grooves (201) are provided on both sides of the placement plate (20), and limiting sliders (3011) are provided on opposite sides of the two groups of vertical rods (301). The two groups of limiting sliders (3011) are slidably arranged in the two groups of limiting slide grooves (201).

3. A grouting test device according to claim 2, characterized in that: The tops of the two groups of limit sliding blocks (3011) are both provided with spring sheets (3012), and the top surfaces of the two groups of limit sliding grooves (201) are both provided with spring sheet clamping grooves (2011), and the two groups of spring sheets (3012) can be clamped in the two groups of spring sheet clamping grooves (2011).

4. A grouting test device according to claim 1, characterized in that: The driving member comprises a lifting screw (302); the lifting screw (302) is rotatably arranged at one end of the cross bar (303); the other end of the cross bar (303) is provided with a guide rod (304) parallel to the lifting screw (302); both outer side walls of the test water tank (10) are provided with connecting seats (105); the lifting screw (302) is threadedly connected to one group of the connecting seats (105); and the guide rod (304) is slidably arranged in another group of the connecting seats (105) along the height direction of the test water tank (10).

5. A grouting test device according to claim 1, characterized in that: The inner bottom surface of the test water tank (10) is provided with a first placement groove (103) corresponding to the placement plate (20); the placement plate (20) is located in the first placement groove (103), and the top surface is flush with the inner bottom surface of the test water tank (10); the inner side wall of the test water tank (10) is provided with a second placement groove (104) corresponding to the two groups of vertical rods (301); the two groups of vertical rods (301) are respectively located in the two groups of the second placement grooves (104), and the side walls are flush with the inner side walls of the test water tank (10).

6. A grouting test device according to claim 1, characterized in that: The invention also comprises a limit assembly, wherein the limit assembly comprises a limit frame (40), a storage groove (202) is provided on the top surface of the placement plate (20) corresponding to the limit frame (40), the limit frame (40) is arranged in the storage groove (202), and the top surface is flush with the top surface of the placement plate (20), both ends of the placement plate (20) are provided with a clearance groove (203) connected with the storage groove (202), and both ends of the limit frame (40) are provided with a shifting block (401), and two groups of the shifting blocks (401) can be slidably arranged in the two groups of the clearance grooves (203) along the height direction of the placement plate (20).

7. A grouting test device according to claim 6, characterized in that: The shift block (401) is provided with a first magnet (402), the top surface of the yielding groove (203) is provided with a second magnet, and the first magnet (402) can be magnetically connected to the second magnet.

8. A grouting test device according to claim 1, characterized in that: The water supply mechanism comprises a buffer box (50) and a water pump (505); a water baffle (501) is arranged inside the buffer box (50) for dividing the inner cavity of the buffer box (50) into a buffer cavity (502) and a temporary storage cavity (503); a plurality of through holes (5011) communicating with the buffer cavity (502) and the temporary storage cavity (503) are arranged at the bottom of the water baffle (501); one side of the buffer box (50) is connected to the water inlet end (101); a plurality of drainage holes (504) communicating with the water inlet end (101) are evenly arranged on the side wall of the temporary storage cavity (503); a water outlet pipe of the water pump (505) is communicated with the buffer cavity (502), and a water outlet corresponds to the top of the water baffle (501); and a water inlet pipe of the water pump (505) is communicated with an external water source.

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