Permeable pavement performance detection device

Abstract

The utility model relates to the technical field of permeable pavement performance detection, discloses a permeable pavement performance detection device, and aims to solve the problem that pavement is damaged by existing permeable pavement performance detection and detect rainwater permeability and rainwater retention capacity in practical application of permeable pavement. The permeable pavement performance detection device comprises a test box, a sealing ring and a sprayer. In the first linear direction, at least one end of the test box is of an open structure, and the open structure end of the test box is connected with a sealing ring. The sprayer is arranged close to the test box and is used for spraying liquid into the test box. The permeable pavement performance detection device provided by the utility model is used for detecting the permeable performance of the permeable pavement.

Description

Technical Field

[0001] The utility model relates to the technical field of pervious pavement performance detection, in particular to a pervious pavement performance detection device. Background Art

[0002] A pervious pavement is a pavement structure that uses a large-void structure layer or a drainage and infiltration facility to enable rainwater to infiltrate underground by itself, so as to achieve the purpose of eliminating surface runoff and replenishing groundwater, and has functions such as conserving water, improving the living environment, and enhancing traffic safety and comfort. The quality of the pervious pavement performance is one of the important factors affecting the runoff control effect during rainfall at different spatial scales such as project plots and regions.

[0003] The common detection method for pervious pavement performance is indoor detection, which requires completely demolishing the pervious pavement in the target area and then bringing it back to the laboratory for detection. However, such a detection method will, on the one hand, damage the structure of the pavement itself and has a long detection cycle. On the other hand, only detecting the performance of the surface pervious bricks cannot reflect the application effect under actual construction and rainfall scenarios. Summary of the Utility Model

[0004] In view of this, the utility model provides a pervious pavement performance detection device, aiming to solve the problem that the existing detection of pervious pavement performance will damage the pavement itself, and can detect the rainwater infiltration performance and rainwater retention capacity in the actual application of pervious pavement.

[0005] The utility model provides a pervious pavement performance detection device, including a test box, a sealing ring and a sprinkler. Along the first straight line direction, at least one end of the test box is an open structure, and a sealing ring is connected to the open-structured end of the test box. The sprinkler is arranged close to the test box and is used for spraying liquid into the test box.

[0006] Beneficial effects: If it is necessary to detect the performance of the pervious pavement structure, the pervious pavement in the area to be tested can be used as the preset area. Move the test box above the preset area, and press and contact the end connected with the sealing ring with the preset area, so that the test box and the preset area are sealed and connected through the sealing ring, that is, there is no gap or very small (negligible) gap between the two. Subsequently, spray a preset volume of liquid (simulating rainwater) into the test box through the sprinkler, and wait until the liquid in the test box completely leaks or leaks for a certain period of time.

[0007] During this process, record the time when the sprinkler sprays a preset volume of liquid into the test box, i.e., the first preset duration, and record the liquid level height in the test box after the first preset duration, i.e., the first liquid level height. After the first preset duration, when the liquid in the test box is completely leaked (i.e., the liquid level height is less than or equal to one millimeter), record the corresponding time as the second preset duration. Or, if the liquid in the test box is not completely leaked, record the liquid level height in the test box at this time after the second preset duration, i.e., the second liquid level height.

[0008] In this way, by controlling the first preset duration and the volume of the preset volume, it is convenient to flexibly control the duration and size of the simulated rainfall, so as to detect the actual rainwater storage performance of the permeable pavement under different rainfall conditions. In addition, combining parameters such as the first liquid level height, the second preset duration, and the second liquid level height is convenient for calculating the actual permeability coefficient of the permeable pavement, so as to detect whether the permeability coefficient of the permeable pavement in the preset area meets the relevant requirements.

[0009] During the above detection by the permeable pavement performance detection device and the calculation using the detection parameters, there is no need to damage the permeable pavement surface. The permeable pavement performance detection device can be directly moved to the permeable pavement in the preset area for on-site detection. It has the characteristics of fast detection speed, detection data conforming to the actual use conditions, wide application range, and convenient operation.

[0010] In some embodiments, the permeable pavement performance detection device further includes a lifting frame, a mobile vehicle frame, and a plurality of rollers. The test box is connected to the mobile vehicle frame through the lifting frame, and the sealing ring is disposed at least along the first straight line direction near the lower end of the test box. At the lower end of the mobile vehicle frame along the first straight line direction, a plurality of rollers are spaced apart. Among them, the test box moves and switches between the first state position and the second state position through the lifting frame. When the test box rises to the first state position, the sealing ring located at the lower end of the test box is in a suspended state. When the test box descends to the second state position, the test box is in sealed contact with the preset area through the sealing ring.

[0011] Beneficial effects: When the test box rises to the first state position, the sealing ring located at the lower end of the test box is in a suspended state. At this time, it is convenient to drive the mobile vehicle frame to move flexibly through the rollers. When the test box descends to the second state position, the test box is in sealed contact with the preset area through the sealing ring. At this time, the test box, the sealing ring, and the preset area enclose a relatively sealed chamber. By filling the liquid in this chamber, the performance parameters of the permeable pavement at the preset area are detected and recorded. It is convenient for the movement and handling of the permeable pavement performance detection device and the detection operation.

[0012] Compared with the solution in the related art of arranging a removed permeable pavement structure in the middle of a closed container and accumulating rainwater above the permeable pavement structure to detect the corresponding water permeability. Through the cooperative setting of the lifting frame and the mobile vehicle frame, the present application can conduct on-site detection of the outdoor permeable pavement area, which is flexible and convenient and has high practicability.

[0013] In some embodiments, the permeable pavement performance detection device further includes a water supply assembly. The water supply assembly includes a water storage tank, a power pump, and a water supply pipe. The power pump is installed in the water storage tank, and the power pump is connected and conducted with the sprinkler through the water supply pipe.

[0014] Beneficial effects: The setting of the water supply assembly is beneficial to improving the convenience of the permeable pavement performance detection device. By controlling the running time and running power of the power pump, it is convenient to flexibly control the first preset duration and the preset volume of rainwater sprayed into the test box. In addition, the preset volume parameter can also be measured and calculated through the change amount of the liquid in the water storage tank before and after the first preset duration, which is relatively convenient.

[0015] In some embodiments, the permeable pavement performance detection device further includes a control assembly. The control assembly includes a controller, and the controller is electrically connected to the power pump for controlling the power pump to be in a starting state or a closing state.

[0016] Beneficial effects: By electrically connecting the controller with the power pump, it is convenient to flexibly control the running time (i.e., the first preset duration) of the power pump to control the duration of the simulated rainfall. At the same time, the running power of the power pump can also be flexibly controlled, so as to control the speed of the rainwater sprayed at the sprinkler to control the rainfall intensity of the simulated rainfall, which is relatively convenient.

[0017] In some embodiments, the control assembly includes a first sensor. The first sensor is installed in the water storage tank and electrically connected to the controller for detecting the liquid level height in the water storage tank.

[0018] Beneficial effects: Taking the first sensor as a pressure type water level sensor as an example. In the water storage tank, the first sensor is installed at the bottom of the water storage tank along the first straight line direction. By detecting the pressure change situation at the bottom of the water storage tank and combining with the preset program, the controller can accurately obtain the liquid level height in the water storage tank. Since the cross-section of the water storage tank is the same shape along the first straight line direction, the controller can accurately calculate the liquid volume in the water storage tank according to the preset program when obtaining the liquid level height. In this way, the preset volume of the simulated rainfall amount can be calculated according to the change amount of the liquid volume in the water storage tank before and after the simulated rainfall.

[0019] In some embodiments, the control assembly further includes a second sensor. Along the first straight line direction, the second sensor is arranged close to one end of the test box provided with a sealing ring for detecting the liquid level height in the test box.

[0020] Beneficial effects: Take the second sensor as a pressure - type water level sensor as an example. Inside the test box, the second sensor is arranged close to the bottom of the test box along the first straight - line direction. When the test box is in the first state position, the lower edge of the sealing ring is not higher than the lower end of the second sensor, and the lower end of the second sensor is the detection and induction end. When the test box is in the second state position, the sealing ring is squeezed and arranged between the test box and the preset area, so that the lower end of the second sensor contacts the surface of the preset area along the first straight - line direction, or the distance between them is less than or equal to 1 - 2 mm, which is convenient for detecting the liquid level height inside the test box.

[0021] In some embodiments, the permeable pavement performance detection device further includes a telescopic assembly. The telescopic assembly includes a support member, a telescopic rod, and a spring. The support member is connected inside the test box. The support member is located at one end of the test box away from the sprinkler along the first straight - line direction. Along the first straight - line direction, the telescopic rod is inserted into the support member. A first limit portion is provided at one end of the telescopic rod close to the sprinkler to prevent the telescopic rod from detaching from the support member. Along the first straight - line direction, a second limit portion is provided at the other end of the telescopic rod away from the sprinkler. A spring in a compressed state is installed between the second limit portion and the support member. The second sensor is located on the side of the second limit portion away from the support member and is connected to the telescopic rod.

[0022] Beneficial effects: During the process of lowering the test box from the second state position to the second state position to make the sealing ring in a squeezed and sealed state. Along the first straight - line direction, after the lower end of the second sensor contacts the surface of the preset area, the telescopic rod can move upward to avoid squeezing and damaging the second sensor, and the second sensor contacts the surface of the preset area through the spring in a compressed state, which is beneficial to improving the measurement accuracy of the liquid level height inside the test box.

[0023] In some embodiments, the control component further includes a display. The display is electrically connected to the controller. The display is at least used to display at least one of the liquid level heights in the water storage tank and the test box and the test time.

[0024] Beneficial effects: For example, the liquid level heights in the water storage tank and the test box can be monitored by liquid level sensors. The test times such as the first preset duration and the second preset duration can be obtained through the programs and logic clocks set in the controller, and the above - mentioned parameters are displayed through the display, so as to facilitate the user to obtain.

[0025] In some embodiments, the rollers are universal wheels.

[0026] Beneficial effects: Universal wheels facilitate the flexible adjustment of the position of the mobile frame. Description of the Drawings

[0027] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Structural schematic diagram of a permeable pavement performance detection device according to an embodiment of the present application;

[0029] Figure 2 For Figure 1 A top view of the shown permeable pavement performance detection device;

[0030] Figure 3 A control connection schematic diagram of a control component according to an embodiment of the present application;

[0031] Figure 4 For Figure 1 A partial enlarged schematic diagram of the bottom of the test box shown in ;

[0032] Figure 5 Flowchart of the first permeable pavement performance detection method provided by the present application;

[0033] Figure 6 Flowchart of the second permeable pavement performance detection method provided by the present application.

[0034] Explanation of reference numerals:

[0035] 100, permeable pavement performance detection device;

[0036] 10, test box; 20, sealing ring; 30, sprayer; 40, lifting frame; 41, lifting motor; 50, mobile vehicle frame; 60, roller;

[0037] 70, water supply component; 71, water storage tank; 72, power pump; 73, water supply pipe;

[0038] 80, control component; 81, controller; 82, display; 83, first sensor; 84, second sensor;

[0039] 90, telescopic component; 91, support member; 92, telescopic rod; 93, spring. Specific embodiments

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of this application.

[0041] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying 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 construed as a limitation to this application.

[0042] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "plural" is two or more.

[0043] Permeable pavement is a pavement structure that uses a large-void structure layer or drainage and infiltration facilities to enable rainwater to infiltrate underground by itself, so as to achieve the purpose of eliminating surface runoff and replenishing groundwater, and has functions such as conserving water, improving the living environment, and enhancing traffic safety and comfort. The quality of permeable pavement performance is one of the important factors affecting the runoff control effect during rainfall at different spatial scales such as project plots and regions.

[0044] Relevant regulations stipulate that the design of permeable brick pavement should meet the requirement of water permeability (drainage) that when encountering a rainstorm intensity once in two years in the place, continuous rainfall lasts for sixty minutes, and no runoff should be generated on its surface. At the same time, the permeability coefficient of permeable bricks should not be less than or equal to 0.1 mm / s.

[0045] The commonly used detection method for permeable pavement usually adopts indoor detection, that is, it is necessary to completely demolish the permeable pavement in the target area and then bring it back to the laboratory for detection. However, such a detection method will, on the one hand, damage the structure of the pavement itself and has a long detection period. On the other hand, only detecting the performance of the surface permeable bricks cannot reflect the application effect under actual construction and rainfall scenarios.

[0046] In view of this, this application provides a device for detecting the performance of permeable pavement to solve the problems that the existing detection of permeable pavement performance will damage the pavement itself and the detection data does not match the actual situation.

[0047] The following will describe a water - permeable pavement performance detection device according to an embodiment of the present application in conjunction with Figures 1 to 6 to describe a water - permeable pavement performance detection device according to an embodiment of the present application.

[0048] On the one hand, as Figure 1 shown, the present application provides a water - permeable pavement performance detection device 100, including a test box 10, a sealing ring 20, and a sprinkler 30. Along the first straight - line direction (i.e., the X - direction), at least one end of the test box 10 is an open - mouth structure. A sealing ring 20 is connected to one end of the test box 10 with the open - mouth structure. The sprinkler 30 is disposed close to the test box 10 and is used to spray liquid into the test box 10.

[0049] Based on this, if it is necessary to detect the performance of the water - permeable pavement structure, the water - permeable pavement in the area to be tested can be used as the preset area. Move the test box 10 above the preset area, and press and contact the end connected with the sealing ring 20 with the preset area, so that the test box 10 and the preset area are hermetically connected through the sealing ring 20, that is, there is no gap or a very small (negligible) gap between the two. Subsequently, spray a preset volume of liquid (simulating rainwater) into the test box 10 through the sprinkler 30, waiting for the liquid in the test box 10 to completely leak, or leak for a certain period of time.

[0050] During this process, record the time when the sprinkler 30 sprays a preset volume of liquid into the test box 10, that is, the first preset duration, and record the liquid - level height of the liquid in the test box 10 after the first preset duration, that is, the first liquid - level height. After the first preset duration, when the liquid in the test box 10 completely leaks (i.e., the liquid - level height is less than or equal to one millimeter), record the corresponding time as the second preset duration. Or, if the liquid in the test box 10 does not completely leak, record the liquid - level height in the test box 10 at this time after the second preset duration, that is, the second liquid - level height.

[0051] In this way, by controlling the first preset duration and the capacity of the preset volume, it is convenient to flexibly control the duration and size of the simulated rainfall, so as to detect the performance parameters of the water - permeable pavement under different rain conditions. At this time, the actual penetration performance of the water - permeable pavement can be intuitively detected according to the first preset liquid - level height. On this basis, combined with detection parameters such as the second preset duration and the second liquid - level height, it is convenient to calculate the penetration coefficient of the water - permeable pavement, and the retention performance of the water - permeable pavement can also be quantified and calculated.

[0052] During the above - mentioned detection by the water - permeable pavement performance detection device 100 and the calculation using the detection parameters, there is no need to damage the water - permeable pavement surface. Just move the water - permeable pavement performance detection device 100 to the water - permeable pavement at the preset area for on - site detection. It has the characteristics of fast detection speed, detection data conforming to the actual use working conditions, wide application range, and convenient operation.

[0053] In some embodiments, such as Figure 1 shown, the pervious paving performance detection device 100 further includes a lifting frame 40, a mobile vehicle frame 50 and a plurality of rollers 60. The test box 10 is connected to the mobile vehicle frame 50 through the lifting frame 40, and the sealing ring 20 is disposed at least near the lower end of the test box 10 along the X direction. At the lower end of the mobile vehicle frame 50 along the X direction, the plurality of rollers 60 are spaced apart to facilitate the flexible movement of the mobile vehicle frame 50. Among them, through the arrangement of the lifting frame 40 and the mobile vehicle frame 50, the test box 10 moves and switches between a first state position and a second state position through the lifting frame 40.

[0054] When the test box 10 rises to the first state position, the sealing ring 20 located at the lower end of the test box 10 is in a suspended state. At this time, it is convenient to drive the mobile vehicle frame 50 to move flexibly through the rollers 60. When the test box 10 descends to the second state position, the test box 10 is in sealed contact with the preset area through the sealing ring 20. At this time, the test box 10, the sealing ring 20 and the preset area enclose a relatively sealed chamber. By replenishing liquid in this chamber, the performance parameters of the pervious paving at the preset area are detected and recorded. It is convenient for the movement and handling of the pervious paving performance detection device 100 and the detection operation.

[0055] Compared with the related art in which the removed pervious paving structure is arranged in the middle of a closed container and rainwater is accumulated above the pervious paving structure to detect the corresponding pervious performance. Through the cooperative arrangement of the lifting frame 40 and the mobile vehicle frame 50 in this application, the pervious paving area outdoors can be detected on-site, which is flexible and convenient and has high practicability.

[0056] Exemplarily, the lifting frame 40 includes a plurality of support vertical rods, and the plurality of support vertical rods are spaced apart circumferentially around the test box 10. After the test box 10 is lifted to a preset height, the test box 10 can be connected to at least one of the plurality of support vertical rods through structures such as screws, plug-in parts or hanging parts, so that the test box 10 and the sealing ring 20 are in the first state position and remain in a suspended state. After removing structures such as screws, plug-in parts or hanging parts, under the action of gravity, the sealing ring 20 descending to the second state position is squeezed between the lower end of the test box 10 and the pervious paving of the preset area.

[0057] In addition, the lifting and moving of the test box 10 between the first state position and the second state position can also be controlled electrically. For example, between the lifting frames 40 composed of a plurality of support vertical rods, a motion mechanism such as a screw motor assembly, a rack motor assembly or an electric control cylinder assembly is also installed. At this time, the test box 10 can be controlled to switch and move between the first state position and the second state position along the X direction (i.e., the up and down direction) through the motion mechanisms such as the screw motor assembly, the rack motor assembly or the electric control cylinder assembly.

[0058] On this basis, support side plates can also be wrapped around the test box 10 at multiple support vertical rods in the circumferential direction to form an annular side wall structure with end-to-end connection. At this time, the upper and lower ends of the test box 10 can be set to an open state.

[0059] As Figure 1 and Figure 2 shown, the number of sprayers 30 for simulating rainfall can be multiple, and the multiple sprayers 30 are close to the upper end of the lifting frame 40 and are arranged at intervals along the horizontal plane. After the test box 10 descends from the first state position to the second state position, there is a gap between the upper end of the test box 10 and the sprayer 30. By providing the lifting frame 40 with an annular side wall structure, it is possible to avoid the problem that the rainwater sprayed by the sprayer 30 spills outside the test box 10, thereby affecting the test results.

[0060] Alternatively, the lifting frame 40 can include two partition plates, the partition plates are fixedly connected to the moving vehicle frame 50, and the test box 10 is installed between the two spaced partition plates so that the test box 10 moves up and down between the first state position and the second state position along the X direction.

[0061] Exemplarily, the upper and lower ends of the test box 10 along the X direction are open structures. The lifting frame 40 includes a cylindrical box body with an open lower end, the upper end of the test box 10 is inserted into the cylindrical box body along the X direction, and is connected to the cylindrical box body through a lifting structure. The sprayer 30 is arranged inside the cylindrical box body and is arranged close to the upper end of the cylindrical box body along the X direction so that the spray opening faces the inside of the test box 10 for spraying. Based on this, when the test box 10 moves up and down along the X direction driven by the lifting motor 41, the sprayer 30 does not move synchronously, thereby improving the structural stability.

[0062] In some embodiments, as Figure 1 shown, the permeable pavement performance detection device 100 further includes a water supply assembly 70, and the water supply assembly 70 includes a water storage tank 71, a power pump 72, and a water supply pipe 73. The power pump 72 is installed in the water storage tank 71, and the power pump 72 is connected and communicated with the sprayer 30 through the water supply pipe 73.

[0063] In this way, the setting of the water supply assembly 70 is beneficial to improving the convenience of the permeable pavement performance detection device 100. By controlling the running time and running power of the power pump 72, it is convenient to flexibly control the first preset duration and the preset volume of rainwater sprayed into the test box 10. In addition, the preset volume parameter can also be measured and calculated through the change amount of the liquid in the water storage tank 71 before and after the first preset duration, which is relatively convenient.

[0064] Among them, the water storage tank 71 is installed inside the mobile vehicle frame 50. For example, two installation spaces can be separated inside the mobile vehicle frame 50. One installation space is used to install the fixed lifting frame 40 and the test box 10, and the other installation space is used to install and fix the water storage tank 71. Based on this, the water stored in the water storage tank 71 can increase the overall mass of the permeable pavement performance detection device 100, and is conducive to improving the sealing effect at the sealing ring 20 in the case of convenient water supply.

[0065] In some embodiments, as Figure 3 shown, the permeable pavement performance detection device 100 further includes a control component 80. The control component 80 includes a controller 81. The controller 81 is electrically connected to the power pump 72 and is used to control the power pump 72 to be in a starting state or a closing state.

[0066] In this way, by electrically connecting the controller 81 and the power pump 72, it is convenient to flexibly control the running time (i.e., the first preset duration) of the power pump 72 to control the duration of the simulated rainfall. At the same time, the running power of the power pump 72 can also be flexibly controlled, so as to control the speed of the rain sprayed at the sprinkler 30 to control the rainfall intensity of the simulated rainfall, which is relatively convenient.

[0067] Exemplarily, the control component 80 can include a plurality of operation buttons. As Figure 1 shown, the operation buttons are integrally arranged with the controller 81. Under the action of a preset program, parameters such as the first preset duration and the preset volume can be edited through the operation buttons, so as to flexibly control and adjust the rainfall time and rainfall intensity of the simulated rainfall in the test box 10.

[0068] In some embodiments, as Figure 1 and Figure 3 shown, the control component 80 further includes a display 82. The display 82 is electrically connected to the controller 81. The display 82 is at least used to display at least one of the liquid level heights in the water storage tank 71 and the test box 10 and the test time.

[0069] Among them, the liquid level heights in the water storage tank 71 and the test box 10 can be monitored by liquid level sensors. Test times such as the first preset duration and the second preset duration can be obtained through the programs and logic clocks built in the controller 81, and the above parameters are displayed through the display 82 for the user to obtain.

[0070] Exemplarily, the display 82 can also be set as a touch display screen. At this time, the display 82 can be operated and clicked to edit and input preset parameters in the controller 81, and corresponding components can also be started through the corresponding virtual buttons via the controller 81.

[0071] As Figure 3As shown, the permeable pavement performance detection device 100 further includes a lifting motor 41 installed at the lifting frame 40. The lifting motor 41 is electrically connected to the controller 81. The lifting motor 41 is a driving mechanism in a motion mechanism such as a lead screw motor assembly, a rack motor assembly, or an electric control cylinder assembly. By controlling the lifting motor 41 through the controller 81, so that Figure 1 the shown test box 10 moves up and down between the first state position and the second state position.

[0072] In some embodiments, such as Figure 1 and Figure 3 shown, the control component 80 further includes at least one of a first sensor 83 and a second sensor 84. The first sensor 83 is installed in the water storage tank 71 and is electrically connected to the controller 81, and is used to detect the liquid level height in the water storage tank 71. Along the X direction, the second sensor 84 is disposed near one end (i.e., the lower end) of the test box 10 provided with the sealing ring 20, and is used to detect the liquid level height in the test box 10.

[0073] Exemplarily, the first sensor 83 and the second sensor 84 are at least one of a pressure type water level sensor and an ultrasonic sensor, etc., and are used to detect the liquid level height in real time. Taking the first sensor 83 and the second sensor 84 as pressure type water level sensors as an example. The cross-sectional shapes of the water storage tank 71 and the test box 10 in the direction perpendicular to the X direction are the same. For example, the water storage tank 71 and the test box 10 can be a cylindrical structure or a multi-prismatic structure.

[0074] In the water storage tank 71, the first sensor 83 is installed along the X direction at the bottom of the water storage tank 71. By detecting the pressure change situation at the bottom of the water storage tank 71 and combining with a preset program, the controller 81 can accurately obtain the liquid level height in the water storage tank 71. Since the cross-section of the water storage tank 71 is the same shape along the X direction, the controller 81 can accurately calculate the liquid volume in the water storage tank 71 according to the preset program when obtaining the liquid level height. In this way, the preset volume of the simulated rainfall amount can be calculated according to the change amount of the liquid volume in the water storage tank 71 before and after the simulated rainfall.

[0075] In the test box 10, the second sensor 84 is disposed along the X direction near the bottom of the test box 10. When the test box 10 is in the first state position, the lower side edge of the sealing ring 20 is not higher than the lower end of the second sensor 84, and the lower end of the second sensor 84 is the detection and induction end. When the test box 10 is in the second state position, the sealing ring 20 is squeezed and disposed between the test box 10 and the preset area, so that the lower end of the second sensor 84 contacts the surface of the preset area along the X direction, or the distance between the two can be less than or equal to 1 - 2 mm, which is convenient for detecting the liquid level height inside the test box 10.

[0076] Among them, in the embodiment of the present application, when the liquid level height in the test box 10 is less than or equal to 5 mm, it is considered that the liquid in the test box 10 has completely leaked.

[0077] In some embodiments, as Figure 4 shown, the pervious paving performance detection device 100 further includes a telescopic assembly 90. The telescopic assembly 90 includes a support member 91, a telescopic rod 92, and a spring 93. The support member 91 is connected to the inside of the test box 10 and is disposed near the lower end of the test box 10 along the X direction. Along the X direction, the telescopic rod 92 is inserted into the support member 91. One end of the telescopic rod 92 located above the support member 91 is provided with a first limiting portion to prevent the telescopic rod 92 from disengaging downward from the support member 91. And one end of the telescopic rod 92 located below the support member 91 is provided with a second limiting portion, and a compressed spring 93 is installed between the second limiting portion and the support member 91, so that the first limiting portion contacts the support member 91 under the action of the spring 93 (at this time in the first state position). Based on this, a second sensor 84 is connected to the lower end of the telescopic rod 92 along the X direction, that is, the second sensor 84 is located below the second limiting portion. So that the lower end (i.e., the detection and induction end) of the second sensor 84 in the natural state is lower than the lower side edge of the sealing ring 20. Or, in the natural state, the lower end of the second sensor 84 can also be flush with the lower side edge of the sealing ring 20 or slightly higher than the lower side edge of the sealing ring 20.

[0078] Based on this, in the process of lowering the test box 10 from the second state position to the second state position to make the sealing ring 20 in an extrusion sealing state. Along the X direction, after the lower end of the second sensor 84 contacts the surface of the preset area, the telescopic rod 92 can move upward to avoid squeezing and damaging the second sensor 84, and the second sensor 84 is made to contact the surface of the preset area through the compressed spring 93, which is beneficial to improving the measurement accuracy of the liquid level height in the test box 10.

[0079] Exemplarily, two spaced chambers can be provided inside the moving frame 50. One chamber is used to install structures such as the lifting frame 40, the test box 10, and the sprinkler 30, and the other chamber is used to install the water supply assembly 70 such as the water storage tank 71. Taking the arrangement direction of the two chambers as the length direction of the moving frame 50 as an example, the width direction and the length direction of the moving frame 50 are perpendicular to the X direction.

[0080] Based on this, the length dimension of the movable frame 50 can be set to 85 - 125 cm, such as 85 cm, 90 cm, 95 cm, 100 cm, 105 cm, 110 cm, 115 cm, 120 cm or 125 cm. Correspondingly, the width dimension of the movable frame 50 is 30 - 50 cm, such as 30 cm, 35 cm, 40 cm, 45 cm or 50 cm. The height dimension of the movable frame 50 along the X direction is 60 - 80 cm, such as 60 cm, 65 cm, 70 cm, 75 cm or 80 cm.

[0081] Exemplarily, the test box 10 is a cylindrical structure with open upper and lower ends. The inner diameter of the test box 10 is 30 - 50 cm, such as 30 cm, 35 cm, 40 cm, 45 cm or 50 cm, etc. The height dimension of the test box 10 along the X direction is 20 - 30 cm, such as 20 cm, 25 cm or 30 cm, etc. The test box 10 can be made of materials such as PVC (polyvinyl chloride), rubber, metal (such as stainless steel or aluminum alloy).

[0082] The water storage tank 71 is a cylindrical structure with at most an open upper end. The inner diameter of the water storage tank 71 is 30 - 50 cm, such as 30 cm, 35 cm, 40 cm, 45 cm or 50 cm, etc. The height dimension of the water storage tank 71 along the X direction is 45 - 55 cm, such as 45 cm, 46 cm, 47 cm, 48 cm, 49 cm, 50 cm, 51 cm, 52 cm, 53 cm, 54 cm or 55 cm, etc. The water storage tank 71 can be made of materials such as PVC, rubber, metal (such as stainless steel or aluminum alloy).

[0083] Exemplarily, along the X direction, the upper end of the water storage tank 71 is provided with a water inlet for supplementing the water used for simulated rainfall. Along the X direction, the lower end of the water storage tank 71 is provided with a drain outlet for discharging the excess water in the water storage tank 71.

[0084] In the embodiment of the present application, the roller 60 can be a universal wheel structure, which is convenient for flexibly adjusting the position of the movable frame 50. Among them, the power supply of the permeable pavement performance detection device 100 can be powered by a storage battery (such as an internal lithium battery, lead-acid battery or solar battery, etc.), or can be powered by an external power cord, and this is not limited.

[0085] It should be noted that in the embodiment of the present application, at least one end of the movable frame along the length direction is provided with a handrail on the upper side, so as to facilitate the user to push the movable frame to move through the handrail.

[0086] On the other hand, as Figure 5 and Figure 6 shown, the present application also provides a method for detecting the performance of permeable pavement, including the following steps:

[0087] Step S101: Select a preset area of the permeable pavement to be detected.

[0088] Exemplarily, the preset area can be a detection area with a diameter greater than 50 cm. When selecting the preset area of the permeable pavement, try to avoid T-shaped joints (such as the T-shaped gaps formed between three adjacent bricks), and clean the test area to avoid affecting the accuracy of the detection results.

[0089] Before performing Step S102, it is necessary to replenish sufficient water in the water storage tank. Alternatively, water can also be supplied to the sprinkler through an external pipeline.

[0090] Step S102: Move the test box above the preset area and control the test box to be in sealed contact with the preset area through a sealing ring.

[0091] Step S103: Control the sprinkler to spray a preset volume of rainwater into the test box within the first preset duration.

[0092] Step S104: Record the first liquid level height of the rainwater in the test box at the end of the first preset duration.

[0093] Step S105: Determine whether all the rainwater in the test box has permeated. If so, perform Step S201. Otherwise, perform Step S202 or Step S203.

[0094] Step S105: Prompt that all has permeated and end.

[0095] Among them, when determining whether all the liquid in the test box has permeated, only need to compare whether the first liquid level height is less than or equal to 5 mm after the first preset duration. If the first liquid level height is less than or equal to 5 mm, that is, the first liquid level height can be regarded as zero. At this time, all the liquid (rainwater) in the test box has permeated. If the first liquid level height is greater than 5 mm, that is, the first liquid level height can be regarded as non-zero, it means that not all the rainwater in the test box has permeated.

[0096] By controlling the power pump through the controller, the rainfall time and rainfall intensity (such as light rain, moderate rain, heavy rain or rainstorm, etc.) of the rainwater sprayed by the sprinkler can be controlled, so as to test the permeation performance of the permeable pavement at the preset area under different rainfall conditions. Among them, if at the end of the first preset duration, all the rainwater in the test box has permeated, that is, no runoff is generated, it means that under the current rainfall conditions, the permeable pavement meets the relevant requirements.

[0097] Moreover, since the above-mentioned method for detecting the performance of the permeable pavement uses the device for detecting the performance of the permeable pavement in the previous aspect, therefore, the two have the same beneficial effects, which will not be elaborated here.

[0098] Exemplarily, first select a preset area with a diameter greater than 50 cm, try to avoid T-shaped joints, and clean the test area. Subsequently, move the pervious pavement performance detection device to the preset area, complete the preparation work such as fixing the universal wheels and connecting the external power supply, and fill the water storage tank with water to 50 cm. Operate the lifting motor through the controller to control the test box to descend to the surface of the preset area of the pervious pavement, and the sealing ring plays an adsorption and sealing role.

[0099] According to the controller, the function of "rainwater retention performance measurement" can be selected for simulation testing. Set the test rainfall volume H = 23 mm and the rainfall time (i.e., the first preset duration) t1 = 60 min through the controller. According to the cross-sectional dimensions of the water storage tank and the test box, calculate the rainfall volume per session (i.e., the preset volume) as Q0 = 4.5 L.

[0100] Subsequently, start the power pump to run for the first preset duration, so that the sprinkler sprays the preset volume of rainwater into the test box within the first preset duration. Through the setting of multiple sprinklers, the rainwater is distributed more evenly during the spraying process. The controller can record in real time and display through the display the first preset duration, the preset volume, the liquid level height of the water storage tank, and the first liquid level height in the test box.

[0101] After the above simulation test, the first liquid level height displayed on the display after the simulated rainfall ends is zero. That is, all the rainwater in the test box has penetrated, and at this time, the display shows "fully penetrated". Therefore, in the simulated rainfall session with a rainfall volume of Q0 = 4.5 L and a rainfall time (i.e., the first preset duration) t1 = 60 min, no runoff is generated on the pervious pavement in the preset area.

[0102] In addition, if in the simulated rainfall session under corresponding conditions, or change the simulated rainfall intensity, such as reducing the rainfall time or increasing the rainfall volume. If the rainwater in the test box does not penetrate completely within the first preset duration, it indicates that runoff will be generated on the pervious pavement in the preset area under the corresponding simulated rainfall session (i.e., rainfall intensity). This solution is used to test the actual retention effect of pervious pavements under different levels of rainfall intensity.

[0103] Alternatively, the actual infiltration coefficient or runoff coefficient of the pervious pavement can also be measured by adjusting the simulated rainfall intensity. The simulated rainfall intensity can be increased so that the first liquid level height remains at a relatively large value, that is, the liquid in the test box cannot penetrate completely within the first preset duration. For example, the rainfall intensity can be greatly increased by reducing the first preset duration and increasing the preset volume, so that the first liquid level height of the rainwater in the test box is relatively large after the first preset duration, for measuring the runoff absorption and infiltration coefficient of the pervious pavement at the preset area.

[0104] In some embodiments, continue to refer to Figure 5, if the liquid in the test box is not completely permeated, the method for detecting the performance of permeable pavement further includes:

[0105] Step S202: Calculate the runoff coefficient ¢ of the preset area according to the formula ¢ = S × h1 / Q0. Wherein, S is the internal cross-sectional area of the test box, h1 is the first liquid level height, and Q0 is the preset volume.

[0106] Exemplarily, after selecting the preset area and preparing the device for detecting the performance of permeable pavement. According to the controller, the "rainwater retention performance measurement" function can be selected for simulation testing. Set the test rainfall amount H = 50 mm and the rainfall time (i.e., the first preset duration) t1 = 60 min through the controller. According to the cross-sectional dimensions of the water storage tank and the test box, calculate the rainfall amount per session (i.e., the preset volume) as Q0 = 9.8 L.

[0107] Subsequently, start the power pump to run for the first preset duration, so that the sprinkler sprays the preset volume of rainwater into the test box within the first preset duration. Through the setting of multiple sprinklers, the rainwater is more evenly distributed during the spraying process. The controller can record in real time and display through the display the first preset duration, the preset volume, the liquid level height of the water storage tank, and the first liquid level height in the test box.

[0108] After the above simulation test, the first liquid level height displayed on the display after the simulated rainfall ends is h1 = 10 mm. Therefore, in the case of a simulated rainfall session with a rainfall amount of Q0 = 9.8 L and a rainfall time (i.e., the first preset duration) t1 = 60 min (taking the cross-sectional area S = 0.2 m 2 as an example), the runoff volume Q1 of the permeable pavement in the preset area = S × h1 = 0.2 m 2 × 10 mm = 2 L, and the corresponding runoff coefficient ¢ = S × h1 / Q0 = Q1 / Q0 = 2 L / 9.8 L = 0.2.

[0109] At this time, the controller can directly calculate and obtain the data of the above runoff volume and runoff coefficient according to the detection parameters and the preset formula, and output the test and calculation results through the display.

[0110] After the test is completed, control the test box to rise to the first state position through the controller, and empty the liquid in the water storage tank through the drain port.

[0111] In addition, the controller can also select the "permeability coefficient measurement of permeable pavement" function for simulation testing.

[0112] Correspondingly, continue to refer to Figure 6 , if the liquid in the test box is not completely permeated, the method for detecting the performance of permeable pavement further includes:

[0113] Step S203: After the first preset duration, record the second liquid level height of the rainwater in the test box after the second preset duration.

[0114] Step S204: Calculate the permeability coefficient Kt of the preset area according to the formula Kt = (h1 - h2) / t2. Where h1 is the first liquid level height, h2 is the second liquid level height, and t2 is the second preset duration.

[0115] In step S203, when the rainwater in the test box is completely permeated, record the second preset duration at this time and record that the second liquid level height is zero. Or, when the rainwater in the test box is not completely permeated within the specified time, record the current second liquid level height after the second preset duration.

[0116] Exemplarily, after selecting the preset area and preparing the pervious paving performance detection device. According to the controller, the "pervious paving permeability coefficient measurement" function can be selected for simulation testing. Set the test rainfall amount (i.e., the preset volume) Q0 = 30L and the rainfall time (i.e., the first preset duration) t1 = 30s through the controller.

[0117] Subsequently, start the power pump to run for the first preset duration, so that the sprinkler sprays the preset volume of rainwater into the test box within the first preset duration. Through the setting of multiple sprinklers, the rainwater is distributed more evenly during the spraying process. The controller can record in real time and display through the display the first preset duration, the preset volume, the liquid level height of the water storage tank, the first liquid level height and the second liquid level height in the test box, and the second preset duration.

[0118] After the above simulation test, the first liquid level height displayed on the display after the simulated rainfall ends is h1 = 15.29cm, and after the second preset duration t2 = 1020s, the rainwater in the test box is completely permeated, that is, h2 = 0 (the second liquid level height is less than or equal to 5mm). Therefore, the permeability coefficient Kt of the pervious paving at the preset area = (h1 - h2) / t2 = (15.29cm - 0) / 1020s = 0.15mm / s.

[0119] At this time, the controller can directly calculate and obtain the above permeability coefficient according to the detection parameters and the preset formula, and output the test and calculation results through the display.

[0120] Moreover, the controller will also compare the calculation result of the permeability coefficient with the requirement of more than 0.1mm / s in the relevant regulations. When the calculated permeability coefficient result is greater than or equal to 0.1mm / s, the controller outputs a prompt that the permeability coefficient meets the standard through the display, and can synchronously display the value of the permeability coefficient. When the test calculation result of the permeability coefficient is less than 0.1mm / s, the controller outputs a prompt that the permeability coefficient does not meet the standard through the display, and can synchronously display the value of the permeability coefficient.

[0121] After the test is completed, the controller is used to control the test box to rise to the first state position, and the liquid in the water storage tank is emptied through the drain port.

[0122] It should be noted that in step S203, after the first preset duration, when recording the second liquid level height of the rainwater in the test box after the second preset duration. If the infiltration rate in the test box is relatively fast, the corresponding second preset duration is recorded when the second liquid level height is zero. At this time, the infiltration coefficient Kt = h1 / t2. If the infiltration rate in the test box is relatively slow, the corresponding second liquid level height can be recorded at the maximum second preset duration. In both cases, the infiltration coefficient of the permeable pavement at the preset area can be calculated by the ratio of the difference between the first liquid level height and the second liquid level height to the second preset duration.

[0123] In addition, in the embodiments of the present application, the user can make the permeable pavement performance detection device in different test states through the button or the touch screen via the controller. Such as two modes: rainwater retention performance measurement and permeable pavement infiltration coefficient measurement.

[0124] After the operator prepares the permeable pavement performance detection device, such as replenishing sufficient water in the water storage tank and completing steps S101 and S102, the permeable pavement performance detection device can automatically operate according to the selected modes such as rainwater retention performance measurement or permeable pavement infiltration coefficient measurement, and output the final detection results and data, with a high degree of automation.

[0125] Although the embodiments of the present application are described with reference to the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A permeable pavement performance detection device, characterized in that: include: A test box (10), wherein along a first straight line direction, at least one end of the test box (10) is an open structure; A sealing ring (20), wherein the test box (10) is connected to the sealing ring (20) at one end of the open structure; and a sprayer (30), which is arranged close to the test box (10) and is used for spraying liquid into the test box (10).

2. The permeable pavement performance detection device according to claim 1 is characterized in that: The permeable paving performance detection device also includes: Lifting frame (40); A movable frame (50), wherein the test box (10) is connected to the movable frame (50) via the lifting frame (40), and the sealing ring (20) is arranged at least along the first straight line direction, close to the lower end of the test box (10); and a plurality of rollers (60), the plurality of rollers (60) being distributed at intervals at the lower end of the moving frame (50) along the first straight line direction; Wherein, the test box (10) is moved and switched between a first state position and a second state position by means of the lifting frame (40); When the test box (10) rises to the first state position, the sealing ring (20) located at the lower end of the test box (10) is in a suspended state; When the test box (10) descends to the second state position, the test box (10) is in sealing contact with the preset area through the sealing ring (20).

3. The permeable pavement performance detection device according to claim 1, characterized in that: The permeable pavement performance detection device further comprises a water supply component (70), wherein the water supply component (70) comprises: Water storage tank (71); A power pump (72) installed in the water storage tank (71); and a water supply pipe (73), wherein the power pump (72) is connected to the sprayer (30) via the water supply pipe (73).

4. The permeable pavement performance detection device according to claim 3 is characterized in that: The permeable paving performance detection device further comprises a control component (80), wherein the control component (80) comprises: A controller (81), the controller (81) is electrically connected to the power pump (72) and is used to control the power pump (72) to be in an on state or an off state.

5. The permeable pavement performance detection device according to claim 4 is characterized in that: The control component (80) comprises: A first sensor (83), the first sensor (83) is installed in the water storage tank (71) and is electrically connected to the controller (81), and is used to detect the liquid level in the water storage tank (71).

6. The permeable pavement performance detection device according to claim 4, characterized in that: The control component (80) further comprises: A second sensor (84) is arranged along the first straight line direction, close to one end of the test box (10) where the sealing ring (20) is provided, and is used to detect the liquid level height in the test box (10).

7. The permeable pavement performance detection device according to claim 6, characterized in that: The permeable pavement performance detection device further comprises a telescopic assembly (90), wherein the telescopic assembly (90) comprises: A support member (91), the support member (91) is connected to the inside of the test box (10), and the support member (91) is located along the first straight line direction at one end of the test box (10) away from the sprayer (30); A telescopic rod (92) is inserted into the support member (91) along the first straight line direction, and a first limiting portion is provided at one end of the telescopic rod (92) close to the sprayer (30) to prevent the telescopic rod (92) from detaching from the support member (91). and a spring (93); along the first straight line direction, a second limiting portion is provided at one end of the telescopic rod (92) away from the sprayer (30); the spring (93) in a compressed state is installed between the second limiting portion and the support member (91); the second sensor (84) is located on a side of the second limiting portion away from the support member (91) and is connected to the telescopic rod (92).

8. The permeable pavement performance detection device according to any one of claims 4 to 7, characterized in that: The control component (80) further comprises: A display (82), the display (82) being electrically connected to the controller (81), the display (82) being used to display at least one of the liquid level heights in the water storage tank (71) and the test box (10) and the test time.

9. The permeable pavement performance detection device according to claim 2, characterized in that: The roller (60) is a universal wheel.

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