Device and method for testing pressed drainage performance of concave-convex drainage plate

Abstract

The invention discloses a device and method for testing the pressed drainage performance of a concave-convex drainage board, and relates to the technical field of drainage boards, and the device comprises a testing seat which is used for bearing the to-be-tested concave-convex drainage board; the test box is arranged above the concave-convex drainage plate in a sealed mode, a pressurization space is formed in the upper portion of the test box, a vibration simulation unit is arranged at the top end of the test box, and a drainage channel is arranged on one side of the test box; the pressurizing water tank is used for providing water with preset pressure into the pressurizing space; the drainage tank is used for collecting water drained by the drainage channel; and the controller calculates the ratio of the water amount collected in the drainage tank to the water amount filled in the pressurized space as the drainage rate. The influence of the water pressure and the vibration environment on the drainage performance of the concave-convex drainage plate is comprehensively considered, and the drainage performance of the concave-convex drainage plate is tested.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage boards, and more specifically, to a test device and a test method for the pressure drainage performance of a concave-convex drainage board. Background Art

[0002] Concave-convex drainage board is a drainage material with special concave-convex shape. It is mainly used for drainage and waterproofing projects and is widely used in construction, municipal administration, water conservancy and other fields. The concave-convex design of the drainage board can increase the drainage area and drainage speed, quickly drain water, and reduce the possibility of water accumulation and leakage. It can effectively drain rainwater and greatly reduce the hydrostatic pressure of the waterproof layer, achieving the effect of active waterproofing. Concave-convex drainage boards are used in construction projects such as tunnels and bridges. They are subject to construction pressure and subsequent surrounding rock pressure, which may cause damage or even leakage. Therefore, it is necessary to test their pressure drainage performance before actual application.

[0003] In the prior art, for example, the utility model patent with application number CN202221412259.3 discloses a test device for a concave-convex drainage board for recycling water resources, including a pressurized water tank rotatably mounted on a support seat, a lifting assembly arranged on the pressurized water tank, a drainage board support assembly connected to the lifting assembly located below the pressurized water tank, a concave-convex drainage board placed on the drainage board support assembly, a lower opening of the pressurized water tank and the concave-convex drainage board forming a sealed cavity, a water storage tank connected to the pressurized water tank, a pressure supply assembly connected to the water storage tank, and a one-way exhaust valve installed on the pressurized water tank. The concave-convex drainage board rises and forms a sealed cavity with the pressurized water tank, water is injected into the pressurized water tank and pressure is applied, so that the water permeability of the concave-convex waterproof board can be tested. However, in actual use, in addition to the water flow pressure, the drainage board will also be affected by the vibration of the vehicle when it is driving. Only pressure loading cannot fully simulate the stress state of the concave-convex drainage board.

[0004] Therefore, it is necessary to propose a test device and a test method for the pressure drainage performance of a concave-convex drainage board to at least partially solve the problems existing in the prior art. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, the present invention provides a pressure drainage performance test device for a concave-convex drainage board, comprising:

[0007] A test seat, which is used to carry the concave-convex drainage board to be tested;

[0008] The test box is sealed and arranged above the concave-convex drainage board, a pressurized space is formed on the upper part of the test box, a vibration simulation unit is arranged on the top of the test box, and a drainage channel is arranged on one side of the test box;

[0009] A pressurized water tank, which is used to provide water at a preset pressure into the pressurized space;

[0010] The drainage box is used to collect the water discharged from the drainage channel; the controller calculates the ratio of the amount of water collected in the drainage box to the amount of water added in the pressurized space as the drainage rate;

[0011] The image acquisition device is arranged in the test seat and is used to acquire images of the bottom surface of the concave-convex drainage board. The controller evaluates the water seepage of the concave-convex drainage board based on the acquired images.

[0012] Preferably, a lifting hydraulic cylinder is arranged on the test table, and the top end of the lifting hydraulic cylinder is connected to the side wall of the test box to drive the test box to move in the vertical direction. An upper arc surface is arranged at the bottom end of the test box, and a lower arc surface is arranged at the top end of the test seat. An installation space for a concave and convex drainage board is formed between the upper arc surface and the lower arc surface, and a drainage channel is arranged along the upper arc surface of the test box.

[0013] Preferably, a sealing ring is provided at the bottom end of the test box, the sealing ring surrounds the outside of the test seat, and sealing gaskets are connected to the upper arc surface and the lower arc surface.

[0014] Preferably, a booster plate is slidably arranged in the test box, the booster plate is connected to the vibration simulation unit, a water injection pipe is arranged at the water outlet of the pressurized water tank, and the water injection pipe passes through the booster plate and extends into the pressurized space.

[0015] Preferably, the vibration simulation unit comprises:

[0016] The box body is connected to the top of the test box, and a bracket is arranged on the top of the inner wall of the box body;

[0017] A rotating shaft is rotatably connected to the bracket, and one end of the rotating shaft is connected to the motor;

[0018] Turntables, both turntables are eccentrically connected to the rotating shaft, the centers of the two turntables are symmetrically arranged on both sides of the rotating shaft, and a counterweight is arranged on the side of the turntable away from the rotating shaft;

[0019] A ring, which is rotatably connected to the outer side of the turntable;

[0020] Rocker arm, the rocker arm is connected to the bottom end of the ring.

[0021] Preferably, the vibration simulation unit further comprises:

[0022] An arc-shaped driving plate, both ends of which are respectively hinged to the bottom ends of the two rocker arms, an arc-shaped slide groove is provided on the arc-shaped driving plate, and a slide column is slidably connected in the arc-shaped slide groove;

[0023] A connecting rod, one end of which is hinged to the side wall of the box body, and the other end of which is hinged to the bottom end of one of the rocker arms;

[0024] A push rod, which is connected to the bottom end of the sliding column, is slidably connected to the top end of the test box and extends into the pressurized space, and is configured as a screw;

[0025] The sleeve is threadedly connected to the lower part of the push rod and is slidably connected to the booster plate. The bottom end of the sleeve is connected to a magnetic plate.

[0026] Preferably, a sleeve seat is provided at the center of the booster plate, the sleeve is rotatably connected in the sleeve seat, and the sleeve seat and the sleeve move up and down synchronously.

[0027] Preferably, a fine vibration simulation unit is provided in the test box, and the fine vibration simulation unit includes:

[0028] A vibration seat, which is connected to the inner wall of the test box and is located directly below the sleeve, the bottom end of the vibration seat is arranged in an arc shape, and a cavity is arranged in the vibration seat;

[0029] A chute, which is vertically arranged at the center of the vibration seat;

[0030] The electromagnetic block is slidably connected in the slide slot, and the electromagnetic block attracts the magnetic plate when powered on, and the magnetic force of the electromagnetic block is adjustable;

[0031] The resonant rod assembly is slidably connected to the bottom end of the vibration seat, and the electromagnetic block drives the resonant rod assembly to move.

[0032] Preferably, the resonant rod assembly comprises:

[0033] A main resonant rod, wherein a plurality of main resonant rods are slidably connected to the center of the bottom end of the vibration seat, the bottom end of the main resonant rod extends out of the vibration seat, and the connection between the two is sealed;

[0034] A first secondary resonant rod, the first secondary resonant rod is slidably connected to the arc surface at the bottom end of the vibration seat, and the first secondary resonant rod is arranged in parallel in three groups;

[0035] A first resonant plate, the first resonant plate is connected to the top end of the first secondary resonant rod, and the first resonant plate is located in the cavity of the vibration seat;

[0036] A guide slide column, the guide slide column is connected to the top of the first resonant plate, and the guide slide column is slidably connected to the vibration seat cavity, and a spring is connected between the top of the guide slide column and the inner wall of the cavity;

[0037] A second secondary resonant rod, the second secondary resonant rod is slidably connected to the arc surface at the bottom end of the vibration base, the second secondary resonant rod is arranged in two groups in parallel and is located between adjacent first secondary resonant rods;

[0038] A second resonant plate, the second resonant plate is slidably connected to the guide slide column, the second resonant plate is connected to the top end of the second secondary resonant rod, and a spring is connected between the second resonant plate and the inner wall of the cavity;

[0039] A plectrum, the plectrum being rotatably connected to a side of the first resonant plate close to the center of the vibration seat;

[0040] A side slide groove, which is arranged on the first resonant plate and is located above the plectrum;

[0041] A wedge-shaped limit block, the wedge-shaped limit block is slidably connected in the side slide groove, and a spring is connected between the end of the wedge-shaped limit block and the end of the side slide groove, and the top of the wedge-shaped limit block is set as a wedge-shaped surface;

[0042] The stopper is connected in the vibration seat cavity, the position of the stopper corresponds to the wedge-shaped surface, and the stopper and the paddle are arranged in a staggered manner front to back.

[0043] Preferably, a method for testing the drainage performance of a concave-convex drainage board under pressure adopts the above-mentioned testing device for the drainage performance of a concave-convex drainage board under pressure, and the specific testing method is:

[0044] Cut the concave-convex drainage board into a preset size, and clamp the concave-convex drainage board to be tested on the test seat;

[0045] The test box is sealed and set above the concave-convex drainage board;

[0046] An image acquisition device is used to obtain an initial image of the bottom surface of the concave-convex drainage board;

[0047] Start the pressurized water tank to inject water of preset pressure into the test box and keep it for preset time;

[0048] The controller calculates the ratio of the amount of water collected in the drainage tank to the amount of water filled in the pressurized space as the drainage rate;

[0049] An image acquisition device is used to obtain a bottom surface image of the concave-convex drainage board under the current pressure, and a controller calculates a ratio of a water seepage area to a total area of ​​the concave-convex drainage board and sets the ratio as a first water seepage rate;

[0050] The vibration simulation unit is started to load a vibration of a preset frequency into the test box; an image acquisition device is used to obtain an image of the bottom surface of the concave-convex drainage board under the current pressure; and a controller calculates a ratio of the seepage area to the total area of ​​the concave-convex drainage board and sets it as a second seepage rate.

[0051] Compared with the prior art, the present invention has at least the following beneficial effects:

[0052] The present invention provides a device for testing the drainage performance of a concave-convex drain board under pressure. Water of preset pressure is injected into a pressurized space to simulate the water flow pressure environment in which the concave-convex drain board is in use. A vibration simulation unit is used to apply vibration to the test water and the concave-convex drain board to simulate the vibration conditions to which the concave-convex drain board is subjected when used in environments such as tunnels and bridges. The effects of water pressure and vibration environment on the drainage performance of the concave-convex drain board are comprehensively considered to improve the accuracy of the test on the drainage performance of the concave-convex drain board. An image acquisition device is used to obtain the bottom surface image of the concave-convex drain board, so that the water seepage of the concave-convex drain board can be observed more intuitively as a supplementary basis for the drainage performance of the concave-convex drain board, and the water flow penetration and accumulation above the concave-convex drain board are clarified, providing direction for the performance improvement design of the concave-convex drain board.

[0053] The present invention provides a method for testing the pressure drainage performance of a concave-convex drainage board, which has the beneficial effects of the pressure drainage performance testing device of the concave-convex drainage board.

[0054] The present invention relates to a device and method for testing the pressure drainage performance of a concave-convex drainage board. Other advantages, objectives and features of the present invention will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0056] Figure 1 It is a schematic cross-sectional structure diagram of a test device for the pressure drainage performance of a concave-convex drainage board according to the present invention;

[0057] Figure 2 It is a schematic diagram of the cross-sectional structure of the test seat and the test box in the present invention;

[0058] Figure 3 It is a structural schematic diagram of the upper part of the vibration simulation unit in the present invention;

[0059] Figure 4 It is a schematic diagram of the cross-sectional structure of the sleeve in the present invention;

[0060] Figure 5 It is a schematic diagram of the cross-sectional structure of the vibration seat in the present invention;

[0061] Figure 6 For the present invention Figure 5 A partial enlarged structural diagram in the middle.

[0062] In the figure: 1. Test seat; 2. Concave and convex drainage board; 3. Test box; 4. Pressurized water tank; 5. Image acquisition device; 6. Lifting hydraulic cylinder; 7. Upper arc surface; 8. Lower arc surface; 9. Sealing ring; 10. Sealing pad; 11. Pressurization plate; 12. Water injection pipe; 13. Box; 14. Bracket; 15. Turntable; 16. Counterweight; 17. Rotating shaft; 18. Ring; 19. Rocker arm; 21. Arc drive plate; 22. Arc slide; 23. Connecting rod; 24. Sliding column; 25. Push rod; 26. Bushing; 27. Bushing seat; 28. Magnetic plate; 30. Drainage channel; 31. Vibration seat; 32. Slide groove; 33. Electromagnetic block; 34. Main resonant rod; 35. First secondary resonant rod; 36. First resonant plate; 37. Guide sliding column; 38. Second secondary resonant rod; 39. Second resonant plate; 40. Drainage box; 41. Paddle; 42. Side slide groove; 43. Wedge-shaped limit block; 44. Stop block. DETAILED DESCRIPTION

[0063] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0064] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0065] Embodiment 1:

[0066] like Figure 1-Figure 6 As shown, the present invention provides a pressure drainage performance test device for a concave-convex drainage board, which is characterized by comprising:

[0067] A test seat 1, the test seat 1 is used to carry the concave-convex drainage board 2 to be tested;

[0068] The test box 3 is sealed and arranged above the concave-convex drainage board 2. A pressurized space is formed on the upper part of the test box 3. A vibration simulation unit is arranged on the top of the test box 3. A drainage channel 30 is arranged on one side of the test box 3.

[0069] A pressurized water tank 4, which is used to provide water of preset pressure into the pressurized space;

[0070] The drainage box 40 is used to collect the water discharged from the drainage channel 30; the controller calculates the ratio of the amount of water collected in the drainage box 40 to the amount of water added in the pressurized space as the drainage rate;

[0071] The image acquisition device 5 is arranged in the test seat 1 and is used to acquire the image of the bottom surface of the concave-convex drainage board 2. The controller evaluates the water seepage of the concave-convex drainage board 2 based on the acquired image.

[0072] The working principle and beneficial effects of the above technical solution are:

[0073] The present invention provides a test device for drainage performance of a concave-convex drainage board under pressure. When conducting the test, the arc-shaped concave-convex drainage board 2 is cut into a preset size, and the concave-convex drainage board 2 to be tested is clamped on a test seat 1; a test box 3 is sealed and arranged above the concave-convex drainage board 2; an image acquisition device is used to obtain an initial image of the bottom surface of the concave-convex drainage board 2; a pressurized water tank 4 is started to inject water of a preset pressure into the test box 3, and after maintaining the preset time, the water flows out through a drainage channel 30; a metering pump is arranged in the pressurized water tank 4, and a flow sensor is arranged in the inlet of the drainage box 40. The controller calculates the ratio of the amount of water collected in the drainage box 40 to the amount of water injected into the pressurized space as a drainage rate, which directly reflects the drainage performance of the concave-convex drainage board 2, and the controller compares the drainage rate with the preset maximum pressure. Small drainage rate. When the drainage rate exceeds the preset minimum drainage rate, it indicates that the drainage performance of the concave-convex drainage board 2 meets the design requirements; an image acquisition device is used to obtain the bottom surface image of the concave-convex drainage board 2 under the current pressure, and the controller calculates the ratio of the seepage area of ​​the concave-convex drainage board 2 to the total area, which is set as the first permeability; the vibration simulation unit is started to load the vibration of the preset frequency to the test box 3; an image acquisition device is used to obtain the bottom surface image of the concave-convex drainage board 2 under the current pressure, and the controller calculates the ratio of the seepage area of ​​the concave-convex drainage board 2 to the total area, which is set as the second permeability; the controller compares the first permeability, the second permeability and the preset maximum permeability. When any permeability value exceeds the preset maximum permeability, it indicates that the anti-water permeability performance of the concave-convex drainage board 2 does not meet the design requirements.

[0074] Through the above-mentioned structural design, water of preset pressure is injected into the pressurized space to simulate the water flow pressure environment in which the concave-convex drainage board 2 is in use; a vibration simulation unit is used to apply vibration to the test water and the concave-convex drainage board 2 to simulate the vibration conditions to which the concave-convex drainage board 2 is subjected when used in environments such as tunnels and bridges, and the effects of water pressure and vibration environment on the drainage performance of the concave-convex drainage board 2 are comprehensively considered to achieve the test of the drainage performance of the concave-convex drainage board 2; an image acquisition device 5 is used to obtain an image of the bottom surface of the concave-convex drainage board 2, so that the water seepage of the concave-convex drainage board 2 can be more intuitively observed as a supplementary basis for the drainage performance of the concave-convex drainage board 2, and the water flow penetration and accumulation above the concave-convex drainage board 2 are clarified, providing direction for the performance improvement design of the concave-convex drainage board 2.

[0075] Embodiment 2:

[0076] On the basis of the above-mentioned embodiment 1, a lifting hydraulic cylinder 6 is arranged on the test table, and the top of the lifting hydraulic cylinder 6 is connected to the side wall of the test box 3 to drive the test box 3 to move in the vertical direction. An upper arc surface 7 is arranged at the bottom of the test box 3, and a lower arc surface 8 is arranged at the top of the test seat 1. An installation space for the concave-convex drainage board 2 is formed between the upper arc surface 7 and the lower arc surface 8, and a drainage channel 30 is arranged along the upper arc surface 7 of the test box 3.

[0077] The working principle and beneficial effects of the above technical solution are:

[0078] When installing the concave-convex drain board 2, start the lifting hydraulic cylinder 6 to lift the test box 3 to expose the test seat 1, which is convenient for installing the concave-convex drain board 2; after the concave-convex drain board 2 is installed on the test seat 1, start the lifting hydraulic cylinder 6 to lower the test box 3 to make it fit with the concave-convex drain board 2 and clamp it stably. An installation space for the concave-convex drain board 2 is formed between the upper arc surface 7 and the lower arc surface 8, which provides support for the arc-shaped concave-convex drain board 2. A drainage channel 30 is set on the upper arc surface 7, and a valve is set on the drainage pipe connected to the drainage channel 30, which is convenient for draining the water flow on the concave-convex drain board 2.

[0079] Embodiment 3:

[0080] On the basis of the above-mentioned embodiment 1, a sealing ring 9 is provided at the bottom end of the test box 3 , the sealing ring 9 surrounds the outside of the test seat 1 , and a sealing gasket 10 is connected to the upper arc surface 7 and the lower arc surface 8 .

[0081] The working principle and beneficial effects of the above technical solution are:

[0082] The sealing ring 9 surrounds the outer side of the test seat 1 and fixes the concave-convex drainage board 2 inside it to improve the installation stability of the concave-convex drainage board 2. At the same time, a sealing gasket 10 is arranged on the upper arc surface 7 and the lower arc surface 8 to improve the sealing effect on the end of the concave-convex drainage board 2 and prevent water leakage at the edge of the concave-convex drainage board 2.

[0083] Embodiment 4:

[0084] On the basis of the above-mentioned embodiment 1, a boosting plate 11 is slidably arranged in the test box 3, the boosting plate 11 is connected to the vibration simulation unit, a water injection pipe 12 is arranged at the water outlet end of the pressurized water tank 4, and the water injection pipe 12 passes through the boosting plate 11 and extends into the pressurized space.

[0085] The working principle and beneficial effects of the above technical solution are:

[0086] A booster plate 11 is set in the test box 3. The height of the booster plate 11 in the test box 3 is adjusted according to the amount of injected water, so that the booster plate 11 contacts the water surface, simulating the underground use scenario of the concave-convex drainage board 2 and reducing the floating of water during drainage.

[0087] Embodiment 5:

[0088] On the basis of the above-mentioned embodiment 4, the vibration simulation unit comprises:

[0089] The box body 13 is connected to the top of the test box 3, and a bracket 14 is provided on the top of the inner wall of the box body 13;

[0090] A rotating shaft 17, the rotating shaft 17 is rotatably connected to the bracket 14, and one end of the rotating shaft 17 is connected to the motor;

[0091] A turntable 15, wherein the two turntables 15 are eccentrically connected to the rotating shaft 17, the centers of the two turntables 15 are symmetrically arranged on both sides of the rotating shaft 17, and a counterweight 16 is arranged on one side of the turntable 15 away from the rotating shaft 17;

[0092] A ring 18, the ring 18 is rotatably connected to the outer side of the rotating disk 15;

[0093] A rocker arm 19, the rocker arm 19 is connected to the bottom end of the ring 18;

[0094] An arc-shaped driving plate 21, both ends of which are respectively hinged to the bottom ends of the two rocker arms 18, an arc-shaped slide groove 22 is provided on the arc-shaped driving plate 21, and a slide column 24 is slidably connected in the arc-shaped slide groove 22;

[0095] A connecting rod 23, one end of which is hinged to the side wall of the box body 13, and the other end of which is hinged to the bottom end of one of the rocker arms 19;

[0096] A push rod 25, the push rod 25 is connected to the bottom end of the slide column 24, the push rod 25 is slidably connected to the top end of the test box 3 and extends into the pressurized space, and the push rod 25 is configured as a screw;

[0097] The sleeve 26 is threadedly connected to the lower part of the push rod 25 and is slidably connected to the boost plate 11 . The bottom end of the sleeve 26 is connected to a magnetic plate 28 .

[0098] A sleeve seat 27 is provided at the center of the boost plate 11 , and the sleeve 26 is rotatably connected in the sleeve seat 27 , and the sleeve seat 27 and the sleeve 26 move up and down synchronously.

[0099] The working principle and beneficial effects of the above technical solution are:

[0100] When the vibration simulation unit is used, the motor is started to drive the rotating shaft 17 to rotate. Since the two turntables 15 are eccentrically connected to the rotating shaft 17 and the centers of the circles are symmetrically distributed on both sides of the rotating shaft 17, as the rotating shaft rotates, the turntables 15 perform eccentric circular motion. The counterweight 16 on the turntable 15 will intensify the eccentric effect, generate unbalanced centrifugal force, and better transmit it to the ring 18 and the rocker arm 19; the rocker arm 19 connected to the bottom end of the ring 18 also swings accordingly, and the two rocker arms 19 move up and down alternately, driving the left and right ends of the arc-shaped driving plate 21 to circulate up and down, and the sliding column 24 slides in the arc-shaped slide groove 22, and as the arc-shaped driving plate 21 circulates up and down, the sliding column 24 drives the push rod 25 to reciprocate up and down in the sliding channel at the top of the test box 3; and then the through sleeve 26, the sleeve seat 27 and the booster plate 11 reciprocate up and down; because the booster plate 11 is in contact with the top of the water surface in the initial position, the test water in the pressurized water tank 4 is circulated and pressurized as the booster plate 11 reciprocates up and down.

[0101] When the concave-convex drainage board 2 is tested under different water pressures or water volumes, the sleeve 26 is rotated in the sleeve seat 17, and the sleeve 26 and the push rod 25 are threadedly transmitted, thereby adjusting the nesting length of the sleeve 26 on the push rod 25, that is, adjusting the height of the sleeve 26, so that the height of the booster plate 11 is adapted to the water surface height, ensuring that during the vibration simulation process, the booster plate 11 effectively applies pressure to the water surface.

[0102] Through the above-mentioned structural design, the turntable 15, rocker arm 19 and other components are used for transmission, and the test water in the pressurized water tank 4 is circulated and pressurized. During the rotation of the turntable 15, the movement is smoother under the action of the counterweight block 16, and the unidirectional rotation of the turntable 15 is converted into a cyclic small-amplitude pressurization action, which can simulate the fine vibration environment in the road surface or bridge, and then realize the test of the drainage performance of the concave-convex drainage board 2 in the vibration environment, which is closer to the actual use environment of the concave-convex drainage board 2.

[0103] Embodiment 6:

[0104] On the basis of the above-mentioned embodiment 5, a fine vibration simulation unit is set in the test box 3, and the fine vibration simulation unit includes:

[0105] A vibration seat 31, the vibration seat 31 is connected to the inner wall of the test box 3 and is located directly below the sleeve 26, the bottom end of the vibration seat 31 is arranged in an arc shape, and a cavity is arranged in the vibration seat 31;

[0106] A slide groove 32, the slide groove 32 is vertically arranged at the center of the vibration seat 31;

[0107] The electromagnetic block 33 is slidably connected in the slide slot 32, and the electromagnetic block 33 attracts the magnetic plate 28 when energized, and the magnetic force of the electromagnetic block 33 is adjustable;

[0108] The resonant rod assembly is slidably connected to the bottom end of the vibration seat 31, and the electromagnetic block 33 drives the resonant rod assembly to move.

[0109] The working principle and beneficial effects of the above technical solution are:

[0110] When the fine vibration simulation unit is used, after the electromagnetic block 33 is energized, due to the mutual attraction between it and the magnetic plate 28, when the sleeve 26 moves to bring the magnetic plate 28 close to the vibration seat 31, the electromagnetic block 33 will slide upward along the slide groove 32 under the action of magnetic force. The electromagnetic block 33 can adjust the magnetic force by changing the magnitude of the current passed, so that when the magnetic plate 28 and the vibration seat 31 are closest, the electromagnetic block 33 is just adsorbed; when the electromagnetic block 33 moves, it drives the resonant rod assembly to move, driving the resonant rod assembly to transmit the vibration to the bottom of the vibration seat 31, and generates fine vibrations that are transmitted to the concave-convex drainage board 2 through the water flow. The above structure can simulate the fine vibrations that the water flow is subjected to when it flows in the soil and falls on the concave-convex drainage board 2, more accurately simulate the pressure environment of the concave-convex drainage board 2, and improve the accuracy and reliability of the test results.

[0111] Embodiment 7:

[0112] On the basis of the above-mentioned embodiment 6, the resonant rod assembly comprises:

[0113] A main resonant rod 34, wherein a plurality of main resonant rods 34 are slidably connected to the center of the bottom end of the vibration seat 31, the bottom end of the main resonant rod 34 extends out of the vibration seat 31, and the connection between the two is sealed;

[0114] The first secondary resonant rods 35 are slidably connected to the arc surface at the bottom end of the vibration seat 31, and the first secondary resonant rods 35 are arranged in parallel in three groups;

[0115] A first resonant plate 36, the first resonant plate 36 is connected to the top end of the first secondary resonant rod 35, and the first resonant plate 36 is located in the cavity of the vibration seat 31;

[0116] A guide slide 37, the guide slide 37 is connected to the top of the first resonant plate 36, and the guide slide 37 is slidably connected to the cavity of the vibration seat 31, and a spring is connected between the top of the guide slide 37 and the inner wall of the cavity;

[0117] The second sub-resonance rods 38 are slidably connected to the arc surface at the bottom end of the vibration seat 31. The second sub-resonance rods 38 are arranged in two groups and are located between adjacent first sub-resonance rods 35;

[0118] A second resonant plate 39, the second resonant plate 39 is slidably connected to the guide slide post 37, the second resonant plate 39 is connected to the top end of the second secondary resonant rod 38, and a spring is connected between the second resonant plate 39 and the inner wall of the cavity;

[0119] A paddle 41, the paddle 41 is rotatably connected to a side of the first resonant plate 36 close to the center of the vibration seat 31;

[0120] A side slide groove 42, which is disposed on the first resonant plate 36 and is located above the paddle 41;

[0121] A wedge-shaped limit block 43, the wedge-shaped limit block 43 is slidably connected in the side slide groove 42, and a spring is connected between the end of the wedge-shaped limit block 43 and the end of the side slide groove 42, and the top of the wedge-shaped limit block 43 is set as a wedge-shaped surface;

[0122] The stopper 44 is connected to the cavity of the vibration seat 31 , the position of the stopper 44 corresponds to the wedge-shaped surface, and the stopper 44 and the paddle 41 are arranged in a staggered manner front to back.

[0123] The working principle and beneficial effects of the above technical solution are:

[0124] When the electromagnetic block 33 slides upward in the slide groove 32 under the action of the electromagnetic force, it will hit the first resonant plate 36, and the first resonant plate 36 will pull the three groups of first secondary resonant rods 35 connected thereto to slide upward; when the first resonant plate 36 contacts the second resonant plate 39, it drives the second secondary resonant rods 38 connected thereto to slide upward; the paddle 41 will not rotate upward under the obstruction of the wedge-shaped limit block 43; when the wedge-shaped limit block 43 contacts the stop block 44, the stop block 44 squeezes the wedge-shaped limit block 43 to slide into the side slide groove 42, thereby releasing the restriction on the paddle 41; at this time, the sleeve 26 drives the magnetic plate 28 to move upward, and the magnetic attraction force of the electromagnetic block 33 is insufficient. In order to overcome the elastic force of the spring, the electromagnetic block 33 moves downward to reset, and squeezes the paddle 41 to rotate downward; the main resonance rod 34 pops outward to achieve the transmission of the first vibration; then the second resonance plate 39 and the first resonance plate 36 move outward at the same time, and the second secondary resonance rod 35 pops out to achieve the transmission of the second vibration; finally, the second resonance plate 39 and the first resonance plate 36 are separated, the first resonance plate 36 moves outward, and the first secondary resonance rod 35 pops out to achieve the transmission of the third vibration; the connection points of each resonance rod are sealed to prevent water from entering the interior of the vibration seat 31; the resonance rods are arranged along the arc surface of the vibration seat 31 to diffuse the vibration wave to the surroundings.

[0125] Through the above-mentioned structural design, fine vibrations can be simulated while simulating vibrations. Through the synergistic effect between the main resonant rod 34, multiple groups of sub-resonant rods and the resonant plate, the three groups of resonant rods are popped out in stages to generate irregular vibration waves. When simulating vibration environments such as roads, bridges, tunnels, or weather environments such as rain, more fine and complex vibration waves can be provided, thereby improving the accuracy of the test results.

[0126] Embodiment 8:

[0127] On the basis of any one of the above embodiments 1-7, a method for testing the drainage performance of a concave-convex drainage board under pressure is provided, using the above-mentioned testing device for the drainage performance of a concave-convex drainage board under pressure, and the specific testing method is as follows:

[0128] Cut the concave-convex drainage board 2 into a preset size, and clamp the concave-convex drainage board 2 to be tested on the test seat 1;

[0129] The test box 3 is sealed and arranged above the concave-convex drainage board 2;

[0130] An image acquisition device is used to obtain an initial image of the bottom surface of the concave-convex drainage board 2;

[0131] Start the pressurized water tank 4 to inject water of a preset pressure into the test box 3 and keep it for a preset time. After the preset time, the water flows out through the drainage channel 30;

[0132] A metering pump is provided in the pressurized water tank 4, and a flow sensor is provided at the inlet of the drainage box 40. The controller calculates the ratio of the amount of water collected in the drainage box 40 to the amount of water added in the pressurized space as the drainage rate, which directly reflects the drainage performance of the concave-convex drainage board 2. The controller compares the drainage rate with the preset minimum drainage rate. When the drainage rate exceeds the preset minimum drainage rate, it indicates that the drainage performance of the concave-convex drainage board 2 meets the design requirements.

[0133] At the same time, an image acquisition device is used to obtain the bottom surface image of the concave-convex drainage board 2 under the current pressure, and the controller calculates the ratio of the seepage area to the total area of ​​the concave-convex drainage board 2 and sets it as the first seepage rate;

[0134] Start the vibration simulation unit to load the vibration of preset frequency to the test box 3; use the image acquisition device to obtain the bottom surface image of the concave-convex drainage board 2 under the current pressure, and the controller calculates the ratio of the seepage area to the total area of ​​the concave-convex drainage board 2 and sets it as the second seepage rate.

[0135] The controller compares the first water permeability, the second water permeability and the preset maximum water permeability. When any water permeability value exceeds the preset maximum water permeability, it indicates that the water-proof performance of the concave-convex drainage board 2 does not meet the design requirements.

[0136] Comprehensively consider the drainage rate and water seepage of the concave-convex drainage board 2 as a supplementary basis for the drainage performance of the concave-convex drainage board 2; clarify the water penetration and accumulation above the concave-convex drainage board 2 to provide direction for the performance improvement design of the concave-convex drainage board 2. When the drainage rate of the concave-convex drainage board 2 meets the requirements, but the water seepage rate does not meet the design requirements, focus on improving the structure and plate materials in the thickness direction of the concave-convex drainage board 2; when the drainage rate of the concave-convex drainage board 2 does not meet the design requirements, but the water seepage rate meets the design requirements, it will cause water accumulation above the concave-convex drainage board 2, and focus on improving the horizontal drainage structure on the concave-convex drainage board 2.

[0137] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0138] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0139] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A test device for the pressure drainage performance of a concave-convex drainage board, characterized in that: include: A test seat (1), the test seat (1) is used to carry the concave-convex drainage board (2) to be tested; A test box (3), the test box (3) is sealed and arranged above the concave-convex drainage board (2), a pressurized space is formed on the upper part of the test box (3), a vibration simulation unit is arranged on the top of the test box (3), and a drainage channel (30) is arranged on one side of the test box (3); A pressurized water tank (4), the pressurized water tank (4) is used to provide water of a preset pressure into the pressurized space; A drainage box (40), the drainage box (40) is used to collect water discharged from the drainage channel (30); the controller calculates the ratio of the amount of water collected in the drainage box (40) to the amount of water injected into the pressurized space as the drainage rate; An image acquisition device (5) is arranged in the test seat (1) and is used to acquire an image of the bottom surface of the concave-convex drainage board (2); the controller evaluates the water seepage condition of the concave-convex drainage board (2) based on the acquired image.

2. A compressive drainage performance test device for a concave-convex drainage board according to claim 1, characterized in that: A lifting hydraulic cylinder (6) is arranged on the test table, the top end of the lifting hydraulic cylinder (6) is connected to the side wall of the test box (3), and drives the test box (3) to move in the vertical direction. An upper arc surface (7) is arranged at the bottom end of the test box (3), and a lower arc surface (8) is arranged at the top end of the test seat (1). An installation space for a concave-convex drainage board (2) is formed between the upper arc surface (7) and the lower arc surface (8), and a drainage channel (30) is arranged along the upper arc surface (7) of the test box (3).

3. A pressure drainage performance test device for a concave-convex drainage board according to claim 2, characterized in that: A sealing ring (9) is arranged at the bottom end of the test box (3), the sealing ring (9) surrounds the outside of the test seat (1), and a sealing gasket (10) is connected to the upper arc surface (7) and the lower arc surface (8).

4. A pressure drainage performance test device for a concave-convex drainage board according to claim 1, characterized in that: A pressurizing plate (11) is slidably arranged in the test box (3), the pressurizing plate (11) is connected to the vibration simulation unit, a water injection pipe (12) is arranged at the water outlet of the pressurized water tank (4), and the water injection pipe (12) passes through the pressurizing plate (11) and extends into the pressurized space.

5. A pressure drainage performance test device for a concave-convex drainage board according to claim 4, characterized in that: The vibration simulation unit includes: A box body (13), the box body (13) is connected to the top of the test box (3), and a bracket (14) is arranged at the top of the inner wall of the box body (13); A rotating shaft (17), the rotating shaft (17) is rotatably connected to the bracket (14), and one end of the rotating shaft (17) is connected to the motor; A rotating disk (15), wherein the two rotating disks (15) are eccentrically connected to the rotating shaft (17), the centers of the two rotating disks (15) are symmetrically arranged on both sides of the rotating shaft (17), and a counterweight (16) is arranged on one side of the rotating disk (15) away from the rotating shaft (17); A circular ring (18), the circular ring (18) is rotatably connected to the outer side of the rotating disk (15); A rocker arm (19) is connected to the bottom end of the ring (18).

6. A test device for drainage performance of concave-convex drainage board under pressure according to claim 5, characterized in that: The vibration simulation unit also includes: An arc-shaped driving plate (21), the two ends of the arc-shaped driving plate (21) are respectively hinged to the bottom ends of the two rocker arms (18), an arc-shaped sliding groove (22) is provided on the arc-shaped driving plate (21), and a sliding column (24) is slidably connected in the arc-shaped sliding groove (22); A connecting rod (23), one end of the connecting rod (23) is hinged to the side wall of the box body (13), and the other end of the connecting rod (23) is hinged to the bottom end of one of the rocker arms (19); A push rod (25), the push rod (25) is connected to the bottom end of the slide column (24), the push rod (25) is slidably connected to the top end of the test box (3) and extends into the pressurized space, and the push rod (25) is configured as a screw; The sleeve (26) is screwed to the lower part of the push rod (25) and the sleeve (26) is slidably connected to the boost plate (11). The bottom end of the sleeve (26) is connected to a magnetic plate (28).

7. A pressure drainage performance test device for a concave-convex drainage board according to claim 6, characterized in that: A sleeve seat (27) is arranged at the center of the boosting plate (11), and the sleeve (26) is rotatably connected in the sleeve seat (27), and the sleeve seat (27) and the sleeve (26) move up and down synchronously.

8. A pressure drainage performance test device for a concave-convex drainage board according to claim 7, characterized in that: A fine vibration simulation unit is arranged in the test box (3), and the fine vibration simulation unit comprises: A vibration seat (31), the vibration seat (31) is connected to the inner wall of the test box (3) and is located directly below the sleeve (26), the bottom end of the vibration seat (31) is arranged in an arc shape, and a cavity is arranged in the vibration seat (31); A slide groove (32), the slide groove (32) is vertically arranged at the center of the vibration seat (31); An electromagnetic block (33), the electromagnetic block (33) is slidably connected in the slide groove (32), and the electromagnetic block (33) and the magnetic plate (28) attract each other after being energized, and the magnetic force of the electromagnetic block (33) is adjustable; The resonant rod assembly is slidably connected to the bottom end of the vibration seat (31), and the electromagnetic block (33) drives the resonant rod assembly to move.

9. A method for testing the pressure drainage performance of a concave-convex drainage board, characterized in that: A device for testing the pressure drainage performance of a concave-convex drainage board according to any one of claims 1 to 8 is used, and the specific testing method is as follows: The concave-convex drainage board (2) is cut into a preset size, and the concave-convex drainage board (2) to be tested is clamped on the test seat (1); The test box (3) is sealed and arranged above the concave-convex drainage board (2); An image acquisition device is used to obtain an initial image of the bottom surface of the concave-convex drainage board (2); Starting the pressurized water tank (4) to inject water of a preset pressure into the test box (3) and maintaining the pressure for a preset time; The controller calculates the ratio of the amount of water collected in the drainage box (40) to the amount of water injected into the pressurized space as the drainage rate; An image acquisition device is used to obtain an image of the bottom surface of the concave-convex drainage board (2) under the current pressure, and a controller calculates a ratio of the water seepage area to the total area of ​​the concave-convex drainage board (2), and sets the ratio as a first water seepage rate; The vibration simulation unit is started to load a vibration of a preset frequency to the test box (3); an image acquisition device is used to obtain an image of the bottom surface of the concave-convex drainage board (2) under the current pressure; a controller calculates the ratio of the water seepage area to the total area of ​​the concave-convex drainage board (2), and sets it as a second water seepage rate.

Images