Detection device for permeability coefficient of pervious concrete

Abstract

The utility model relates to a device for detecting the permeability coefficient of pervious concrete, which belongs to the field of concrete permeability detection and comprises a detection table, a splash-proof mechanism is mounted at the top of the detection table, a stand column is mounted on the left side of the top of the detection table, and a spraying mechanism is mounted on the stand column. And the splash-proof mechanism comprises a splash-proof cover shell and a placement disc, the placement disc is fixedly mounted at the top of the detection table, and a net plate is fixedly embedded into the placement disc. According to the device for detecting the permeability coefficient of the pervious concrete, after a pervious concrete sample is placed at the top of the placing disc, the concrete is covered with the splash-proof cover shell, the splash-proof cover shell is clamped on the placing disc, then the separation cover moves downwards to cover the top of the splash-proof cover shell, water is pumped through the water pump, and the water is dispersedly sprayed out of the separation cover to be sprayed on the concrete, so that the permeability coefficient of the pervious concrete is detected. Water penetrating through the concrete flows out of the screen plate and flows into the measuring cylinder through the flow guide pipe, so that the sprayed water is prevented from splashing, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete water permeability detection, in particular to a detection device for the water permeability coefficient of permeable concrete. Background Art

[0002] Permeable concrete is also called porous concrete, sandless concrete, and permeable floor. It is a porous lightweight concrete made of aggregate, cement, reinforcing agent, and water. It does not contain fine aggregate. The surface of the coarse aggregate is covered with a thin layer of cement slurry and bonded to each other to form a honeycomb structure with evenly distributed holes. Therefore, it has the characteristics of air permeability, water permeability, and light weight. The good air permeability and water permeability of permeable concrete can effectively reduce the surface temperature of the road surface, mitigate the urban heat island effect, and effectively regulate the ecological balance of the city. When using permeable concrete, its water permeability coefficient needs to be tested.

[0003] According to Chinese patent announcement number CN216411009U, a device for detecting the water permeability coefficient of permeable concrete includes a box body, a detection box is fixedly installed on the left side of the box body, a clamping mechanism is fixedly installed inside the detection box, a partition rod is fixedly installed inside the detection box and at the bottom of the clamping mechanism, and the clamping mechanism includes a motor, a rotating shaft, a connecting plate, a clamping base, a clamping plate and a telescopic rod. The device for detecting the water permeability coefficient of permeable concrete, by setting a motor, first places the permeable concrete on the top of the partition rod, and then drives the rotating shaft to rotate through the output shaft of the motor to make the connecting plate move by thread.

[0004] When the permeability coefficient detection device of this announcement number is in use, the permeable concrete is clamped and fixed by a clamping mechanism, and then water is sprayed on the permeable concrete through a nozzle. Since there is a partition bar under the clamped permeable concrete, the sprayed water will directly splash under the permeable concrete. The splashed water may enter the measuring cup, which will affect the accuracy of the permeability detection. Therefore, a permeability coefficient detection device for permeable concrete is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a detection device for the water permeability coefficient of permeable concrete, which has the advantages of improving the accuracy of water permeability detection and solving the problem that the splash of sprayed water may affect the accuracy of water permeability detection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting the permeability coefficient of permeable concrete, comprising a detection platform, a splash-proof mechanism is installed on the top of the detection platform, a column is installed on the left side of the top of the detection platform, and a spray mechanism is installed on the column.

[0007] The splash-proof mechanism includes a splash-proof cover and a placement plate, the placement plate is fixedly installed on the top of the detection table, a mesh plate is embedded and fixed inside the placement plate, the left and right sides of the bottom of the splash-proof cover are fixedly connected with a clamping plate, the left and right sides of the top of the placement plate are provided with a clamping slot, the clamping plate is clamped inside the clamping slot, and a clamping piece for a limited clamping plate is provided inside the placement plate.

[0008] The spray mechanism includes a lifting plate and an electric linear guide rail. The lifting plate is slidably connected to the column through the electric linear guide rail. A water pump is installed on the top of the lifting plate. A water pipe is fixedly connected to the right side of the water pump. The end of the water pipe away from the water pump passes through the lifting plate and is fixedly connected to a separation cover.

[0009] Furthermore, the clamping member includes a T-shaped rod, which is slidably connected in an installation cavity opened inside the placement plate, and one side of the T-shaped rod is fixedly connected to a limiting block, and the limiting block is inserted into a limiting groove opened in the side wall of the clamping plate.

[0010] Furthermore, the outer sleeve of the T-shaped rod is provided with a spring located inside the installation cavity, and one end of the T-shaped rod away from the limiting block passes through the placement plate and extends to the outside and is fixed with a pull plate.

[0011] Furthermore, the limit block is a trapezoidal structure, a sealing ring plate is fixedly connected to the bottom of the splashproof cover, an annular groove is opened on the top of the placement plate, a sealing ring is installed on the inner wall of the annular groove, and the sealing ring plate is inserted into the inside of the annular groove.

[0012] Furthermore, a placement groove is provided inside the detection table, a measuring cylinder is placed inside the placement groove, a water flow groove is provided inside the detection table at the bottom of the placement plate, the water flow groove is a truncated cone structure, and a guide tube located at the bottom of the water flow groove is fixed to the inner top wall of the placement groove.

[0013] Furthermore, a valve and a flow meter are installed on the water pipe, the interior of the separation cover is a cavity structure, a plurality of water outlet holes are opened at the bottom of the separation cover, and the separation cover abuts against the top of the splashproof cover.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The device for detecting the water permeability coefficient of permeable concrete has the following steps: after placing the permeable concrete sample on the top of a placing plate, a splash-proof cover is covered on the outside of the concrete, the splash-proof cover is clamped on the placing plate, and then a separation cover is moved down to cover the top of the splash-proof cover. Water is pumped by a water pump to disperse and spray from the separation cover onto the concrete. Water that has permeated the concrete will flow out from a mesh plate and into a measuring cylinder through a guide pipe, thereby preventing the sprayed water from splashing out and improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 The utility model structure Figure 1 A magnified view of the structure at center A;

[0018] Figure 3 It is a three-dimensional diagram of the structural diversion cover of the utility model.

[0019] In the figure: 1. test table; 2. column; 3. electric linear guide; 4. lifting plate; 5. water pump; 6. water pipe; 7. separation cover; 71. water outlet; 8. splash cover; 9. placement groove; 10. measuring cylinder; 11. guide tube; 12. placement plate; 13. clamping plate; 14. clamping groove; 15. limit block; 16. spring; 17. T-bar; 18. pull plate; 19. limit groove; 20. sealing ring plate; 21. annular groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 In this embodiment, a device for detecting the water permeability coefficient of permeable concrete includes a detection platform 1, a splash-proof mechanism is installed on the top of the detection platform 1, a column 2 is installed on the left side of the top of the detection platform 1, and a spray mechanism is installed on the column 2.

[0022] The splash-proof mechanism includes a splash-proof cover 8 and a placement plate 12, the placement plate 12 is fixedly installed on the top of the detection table 1, a mesh plate is embedded and fixed inside the placement plate 12, the left and right sides of the bottom of the splash-proof cover 8 are fixedly connected with a clamping plate 13, the left and right sides of the top of the placement plate 12 are provided with a clamping groove 14, the clamping plate 13 is clamped in the inside of the clamping groove 14, and a clamping part of the limited clamping plate 13 is arranged inside the placement plate 12, and the clamping part includes a T-bar 17, the T-bar 17 is slidably connected in the installation cavity opened in the placement plate 12, one side of the T-bar 17 is fixedly connected to a limited block 15, the limit block 15 is inserted in the limit groove 19 opened in the side wall of the clamping plate 13, the outside of the T-bar 17 is provided with a spring 16 located inside the installation cavity, and the end of the T-bar 17 away from the limit block 15 passes through the placement plate 12 and extends to the outside and is fixed with a pull plate 18.

[0023] It can be understood that the splash-proof cover 8 is fixed to the top of the placement plate 12 by means of a snap-in piece to prevent the sprayed water from splashing during the test, while at the same time making it convenient to remove the splash-proof cover 8 and to take the concrete sample after the test. A control panel is installed on the surface of the test bench 1, and the electric linear guide 3, water pump 5, valve, and flow meter are all electrically connected to the control panel.

[0024] The spray mechanism includes a lifting plate 4 and an electric linear guide 3. The lifting plate 4 is slidably connected to the column 2 through the electric linear guide 3. A water pump 5 is installed on the top of the lifting plate 4. A water pipe 6 is fixedly connected to the right side of the water pump 5. The end of the water pipe 6 away from the water pump 5 passes through the lifting plate 4 and is fixedly connected to a separation cover 7. A valve and a flow meter are installed on the water pipe 6. The interior of the separation cover 7 is a cavity structure. A plurality of water outlet holes 71 are opened at the bottom of the separation cover 7. The separation cover 7 abuts against the top of the splashproof cover 8.

[0025] It can be understood that a telescopic hose is fixedly connected to the side of the water pump 5 away from the water pipe 6, and the flow meter is a liquid flow meter, which is convenient for monitoring the flow of the spray water.

[0026] It should be noted that a sealing gasket is installed at the bottom of the separation cover 7, and the sprayed water is evenly sprinkled on various places on the concrete surface through multiple water outlets 71 opened at the bottom of the separation cover 7.

[0027] See also Figure 1 , Figure 2 The limit block 15 is a trapezoidal structure. A sealing ring plate 20 is fixedly connected to the bottom of the splashproof cover 8. An annular groove 21 is opened on the top of the placement plate 12. A sealing ring is installed on the inner wall of the annular groove 21. The sealing ring plate 20 is inserted into the inside of the annular groove 21.

[0028] By setting a splash-proof cover 8 to be clamped on the top of the placement plate 12, it is used to cover the permeable concrete to avoid splashing of sprayed water. After the inspection, the limit block 15 can be pulled out of the limit groove 19 by pulling the pull plate 18, so that the splash-proof cover 8 is convenient to remove, and the permeable concrete sample that has been inspected is convenient to take down.

[0029] Among them, a placement groove 9 is opened inside the detection table 1, and a measuring cylinder 10 is placed inside the placement groove 9. A water flow groove located at the bottom of the placement plate 12 is opened inside the detection table 1. The water flow groove is a truncated cone structure, and a guide tube 11 located at the bottom of the water flow groove is fixed on the inner top wall of the placement groove 9.

[0030] It should be noted that after the permeable concrete sample is placed on the top of the placement tray 12, the splash-proof cover 8 is covered on the outside of the concrete, and the splash-proof cover 8 is snapped onto the placement tray 12, and then the separation cover 7 is moved down to cover the top of the splash-proof cover 8, and water is pumped by the water pump 5 to disperse and spray from the separation cover 7 onto the concrete. The water that passes through the concrete will flow out from the mesh plate through the guide pipe 11 and flow into the measuring cylinder 10, preventing the sprayed water from splashing out, thereby improving the accuracy of the detection.

[0031] The working principle of the above embodiment is as follows: when in use, the permeable concrete sample is first placed on the top of the placement plate 12, and then the splash-proof cover 8 is covered on the outside of the concrete. When moving downward, the card plate 13 will be inserted into the inside of the card slot 14, so that the limit block 15 can be squeezed and moved to make the spring 16 expand and contract. The limit block 15 can be inserted into the inside of the limit slot 19 through the resilience of the spring 16, so that the card plate 13 is limited, and the splash-proof cover 8 can be fixed. After the electric linear guide 3 is controlled by the control panel to drive the separation cover 7 to move down and cover the top of the splash-proof cover 8, the water pump 5 pumps water to make the water dispersed and sprayed from the separation cover 7 onto the concrete, and the flow meter on the water pump 5 detects the flow rate of the spray water. The water that passes through the concrete will flow out from the mesh plate through the guide pipe 11 and flow into the measuring cylinder 10, preventing the sprayed water from splashing, thereby improving the accuracy of the detection.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the water permeability coefficient of permeable concrete, comprising a detection platform (1), characterized in that: The top of the testing platform (1) is provided with a splash-proof mechanism, a column (2) is installed on the left side of the top of the testing platform (1), and a spray mechanism is installed on the column (2); The splash-proof mechanism comprises a splash-proof cover (8) and a placement plate (12), wherein the placement plate (12) is fixedly mounted on the top of the detection platform (1), a mesh plate is embedded and fixed inside the placement plate (12), a clamping plate (13) is fixedly connected to the left and right sides of the bottom of the splash-proof cover (8), a clamping groove (14) is provided on the left and right sides of the top of the placement plate (12), the clamping plate (13) is clamped inside the clamping groove (14), and a clamping piece for limiting the position of the clamping plate (13) is provided inside the placement plate (12); The spray mechanism comprises a lifting plate (4) and an electric linear guide rail (3); the lifting plate (4) is slidably connected to the column (2) via the electric linear guide rail (3); a water pump (5) is installed on the top of the lifting plate (4); a water pipe (6) is fixedly connected to the right side of the water pump (5); an end of the water pipe (6) away from the water pump (5) passes through the lifting plate (4) and is fixedly connected to a separation cover (7).

2. A device for detecting water permeability coefficient of permeable concrete according to claim 1, characterized in that: The clamping member comprises a T-shaped rod (17), the T-shaped rod (17) is slidably connected in a mounting cavity opened inside the placement plate (12), one side of the T-shaped rod (17) is fixedly connected to a limiting block (15), and the limiting block (15) is inserted into a limiting groove (19) opened on the side wall of the clamping plate (13).

3. A device for detecting water permeability coefficient of permeable concrete according to claim 2, characterized in that: The outside of the T-shaped rod (17) is sleeved with a spring (16) located inside the installation cavity. One end of the T-shaped rod (17) away from the limiting block (15) passes through the placement plate (12) and extends to the outside and is fixed with a pull plate (18).

4. A device for detecting water permeability coefficient of permeable concrete according to claim 2, characterized in that: The limit block (15) is of a trapezoidal structure. The bottom of the splash-proof cover (8) is fixedly connected with a sealing ring plate (20). The top of the placement plate (12) is provided with an annular groove (21). A sealing ring is installed on the inner wall of the annular groove (21). The sealing ring plate (20) is inserted into the inside of the annular groove (21).

5. The device for detecting water permeability coefficient of permeable concrete according to claim 1, characterized in that: The detection platform (1) is provided with a placement groove (9) inside, a measuring cylinder (10) is placed inside the placement groove (9), a water flow groove located at the bottom of the placement plate (12) is provided inside the detection platform (1), the water flow groove is a truncated cone structure, and a flow guide pipe (11) located at the bottom of the water flow groove is fixed to the inner top wall of the placement groove (9).

6. The device for detecting water permeability coefficient of permeable concrete according to claim 1, characterized in that: A valve and a flow meter are installed on the water delivery pipe (6); the interior of the separation cover (7) is a cavity structure; a plurality of water outlet holes (71) are provided at the bottom of the separation cover (7); and the separation cover (7) abuts against the top of the splash-proof cover (8).

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