Permeable concrete permeability detection device

Abstract

The utility model discloses a permeable concrete permeability detection device, and relates to the technical field of concrete permeability detection. The device comprises a water receiving cylinder, a dial gauge is arranged on the outer side of the water receiving cylinder, the top of the water receiving cylinder is fixedly connected with an inner screw ring, the periphery of the inner screw ring is in threaded connection with an outer screw ring, the top of the outer screw ring is fixedly connected with a cover cylinder, and the top of the cover cylinder is fixedly connected with a handle. Water flow flowing into the two-way guide hopper through an external water source of the external hose penetrates through the concrete block to flow into the water receiving barrel and abuts against the elastic air bag upwards along the interior of the two-way guide hopper, and then by means of the rebound characteristic of the elastic air bag, when the water pressure guided into the two-way guide hopper through the external hose changes, the water flow flows into the two-way guide hopper through the external hose. The water pressure, abutting against the elastic air bag, in the two-way guide hopper is changed, meanwhile, the elastic air bag expands or contracts to deform, and therefore the occupied area of the elastic air bag in the two-way guide hopper is changed, and the pressure in the two-way guide hopper is kept stable.

Description

Technical Field

[0001] The present application relates to the technical field of concrete permeability detection, and in particular to a device for detecting permeability of permeable concrete. Background Art

[0002] With the continuous development of urban construction and rising environmental awareness, permeable concrete, a new building material with excellent permeability, has gradually attracted widespread attention and application. Permeable concrete can effectively alleviate urban stormwater flooding and improve the quality of the urban ecological environment. To accurately evaluate the permeability of permeable concrete, permeability testing devices have emerged.

[0003] Permeable concrete permeability testing devices typically use the hydraulic head method, a commonly used method for determining material permeability. Its basic principle is to apply a hydraulic head difference on both sides of the material, observe water penetration through the material, and thus infer the material's permeability coefficient. The hydraulic head method can accurately determine the permeability of permeable concrete in permeability testing. Its advantages include ease of operation and intuitive results, and therefore its widespread application.

[0004] However, when a water pump is used to introduce water into the permeability detection device, unstable water pump power and changes in ambient temperature will cause water pressure fluctuations and interfere with the detection results, thereby reducing the detection accuracy of the permeability detection device. Utility Model Content

[0005] The purpose of this application is to solve the problem that unstable power of the water pump and changes in ambient temperature will cause water pressure fluctuations and interfere with the detection results, thereby reducing the detection accuracy of the permeability detection device. This application provides a permeability detection device for permeability of permeability of concrete.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A permeability detection device for permeability of permeable concrete comprises a water receiving cylinder, a scale is provided on the outside of the water receiving cylinder, an inner screw ring is fixedly connected to the top of the water receiving cylinder, an outer screw ring is threadedly connected to the outer periphery of the inner screw ring, a cover cylinder is fixedly connected to the top of the cover cylinder, a handle is fixedly connected to the top of the cover cylinder, a two-way guide bucket is fixedly connected to the inside of the cover cylinder, an external hose is fixedly connected to the middle section of the two-way guide bucket, one end of the external hose passes through the water receiving cylinder and extends to the outside of the water receiving cylinder, an elastic air bag is fixedly connected to the inner top of the cover cylinder, an annular base is installed on the inner top of the water receiving cylinder, a drain outlet is provided at the bottom of the water receiving cylinder, a drain hose is fixedly connected to the output end of the drain outlet, and a drain valve is provided inside the drain outlet.

[0008] By adopting the above technical solution, by setting up the coordinated use of the elastic airbag with the double-way guide bucket and the annular base, the water flowing into the double-way guide bucket through the external water source via the external hose passes through the concrete block and flows into the interior of the water receiving tube, while flowing upward along the interior of the double-way guide bucket to form a conflict with the elastic airbag. Then, by utilizing the rebound characteristics of the elastic airbag, when the water pressure inside the double-way guide bucket introduced by the external hose changes, the water pressure inside the double-way guide bucket that conflicts with the elastic airbag also changes, and at the same time, the elastic airbag expands or contracts, thereby changing the area occupied by the elastic airbag inside the double-way guide bucket to maintain the pressure inside the double-way guide bucket stable, thereby facilitating the use of the expansion and contraction characteristics of the elastic airbag to change the space inside the double-way guide bucket, thereby achieving the effect of real-time adjustment of the water pressure inside the double-way guide bucket, reducing the interference of water pressure changes on the detection results, and improving the detection accuracy of the device.

[0009] Furthermore, a hanging ring is fixedly connected to the top of the annular support, and the hanging ring is hung on the top of the inner screw ring.

[0010] By adopting the above technical solution, by setting up the coordinated use of the hanging ring and the annular base, it is convenient to use the hanging ring to hang the annular base and the concrete block on the top of the inner screw ring, so that the annular base and the concrete block can be quickly removed from the inside of the water collecting tube for cleaning after the inspection is completed, thereby effectively improving the practicality of the device.

[0011] Furthermore, a sealing rubber ring is fixedly connected to the top of the hanging ring, and the sealing rubber ring is installed between the cover tube and the hanging ring.

[0012] By adopting the above technical solution, by setting the hanging ring for use with the sealing rubber ring and the cover tube, when the cover tube is rotated to drive the outer screw ring and the inner screw ring to form a threaded connection, the cover tube cooperates with the water receiving tube to squeeze the sealing rubber ring, so that the sealing rubber ring is used to fill the gap between the cover tube and the hanging ring, thereby effectively improving the sealing performance of the connection end between the cover tube and the water receiving tube.

[0013] Furthermore, a filter net bag is fixedly connected to the bottom of the annular support.

[0014] By adopting the above technical solution, by setting up the filter net bag and the use in conjunction with the annular base, it is convenient to use the filter net bag to filter and intercept the water flow passing through the inside of the annular base, thereby effectively reducing the debris and other particulate matter inside the concrete block from passing through the annular base into the inside of the water receiving tube and the drain outlet, causing blockage and jamming, thereby improving the practicality of the device.

[0015] Furthermore, a drainage bucket is fixedly connected to the interior of the water receiving cylinder, the drainage bucket is installed below the annular base, and a water pressure sensor is provided inside the drainage bucket.

[0016] By adopting the above technical solution and setting up the drainage bucket and the water pressure sensor in conjunction, it is convenient to monitor the water flow pressure passing through the annular base and entering the drain outlet in real time, thereby facilitating the provision of pressure change information during the permeability test of multiple groups of controls, and further improving the detection accuracy of the device.

[0017] Furthermore, a guide platform is fixedly connected to the inner bottom of the water receiving cylinder, and the lower point of the top surface of the guide platform faces the drain outlet.

[0018] By adopting the above technical solution and setting up the coordinated use of the guide platform and the drain outlet, it is convenient for the water flow inside the water receiving cylinder to flow toward the drain outlet under the guidance of gravity and the top surface of the guide platform after opening the drain valve, thereby effectively reducing the influence of the residual water flow inside the water receiving cylinder on the secondary detection accuracy.

[0019] Furthermore, the bottom of the water receiving cylinder is fixedly connected to a supporting bottom chassis.

[0020] By adopting the above technical solution and arranging the supporting bottom chassis and the water collecting cylinder for use in conjunction with each other, the supporting bottom chassis can be used to increase the contact area between the water collecting cylinder and the desktop, thereby improving the stability of the device.

[0021] Furthermore, the surfaces of the inner spiral ring and the outer spiral ring are coated with a silicone waterproof coating.

[0022] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the device is effectively improved, the sealing between the inner spiral ring and the outer spiral ring is improved, and the service life of the device is extended.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. By setting up the elastic air bag in conjunction with the double-way guide bucket and the annular base, the water flowing into the double-way guide bucket through the external water source via the external hose passes through the concrete block and flows into the water receiving tube, while going up along the inside of the double-way guide bucket to form a conflict with the elastic air bag. Then, by utilizing the rebound characteristics of the elastic air bag, when the water pressure inside the double-way guide bucket introduced by the external hose changes, the water pressure inside the double-way guide bucket that conflicts with the elastic air bag also changes, and at the same time, the elastic air bag expands or contracts, thereby changing the area occupied by the elastic air bag inside the double-way guide bucket to maintain the pressure inside the double-way guide bucket stable, thereby facilitating the use of the expansion and contraction characteristics of the elastic air bag to change the space inside the double-way guide bucket, thereby achieving the effect of real-time adjustment of the water pressure inside the double-way guide bucket, reducing the interference of water pressure changes on the detection results, and improving the detection accuracy of the device.

[0025] 2. By setting up the filter net bag and the annular base for use, it is convenient to use the filter net bag to filter and intercept the water flow passing through the inside of the annular base, thereby effectively reducing the debris and other particulate matter inside the concrete block from passing through the annular base into the water receiving tube and the drain outlet, causing blockage and jamming, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a side sectional view of the device body in this application.

[0028] Figure 3 It is an exploded view of the internal structure of the inner spiral ring in this application.

[0029] Description of reference numerals:

[0030] 1. Water collecting cylinder; 2. Scale; 3. Inner screw ring; 4. Outer screw ring; 5. Cover cylinder; 6. Handle; 7. Two-way guide bucket; 8. External hose; 9. Elastic airbag; 10. Annular base; 11. Drain outlet; 12. Drain hose; 13. Hanging ring; 14. Sealing rubber ring; 15. Filter net bag; 16. Drainage bucket; 17. Water pressure sensor; 18. Guide platform; 19. Support bottom chassis; 20. Drain valve. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a device for detecting the permeability of permeable concrete.

[0033] Reference Figure 1 and Figure 2 A permeability detection device for permeability of permeable concrete comprises a water receiving cylinder 1, a scale 2 is provided on the outside of the water receiving cylinder 1, an inner screw ring 3 is fixedly connected to the top of the water receiving cylinder 1, an outer screw ring 4 is threadedly connected to the outer screw ring 4, a cover cylinder 5 is fixedly connected to the top of the outer screw ring 4, a handle 6 is fixedly connected to the top of the cover cylinder 5, a double-way guide bucket 7 is fixedly connected to the inside of the cover cylinder 5, an external hose 8 is fixedly connected to the middle section of the double-way guide bucket 7, one end of the external hose 8 passes through the water receiving cylinder 1 and extends to the outside of the water receiving cylinder 1, an elastic air bag 9 is fixedly connected to the inner top of the water receiving cylinder 1, an annular base 10 is installed on the inner top of the water receiving cylinder 1, a drain outlet 11 is provided at the bottom of the water receiving cylinder 1, a drain hose 12 is fixedly connected to the output end of the drain outlet 11, and a drain valve 20 is provided inside the drain outlet 11.

[0034] When in use, first put the concrete block to be tested into the inside of the annular foundation 10, then manually hold the handle 6 to rotate the cover tube 5, and make the cover tube 5 drive the outer screw ring 4 to form a threaded connection with the inner screw ring 3, so that the cover tube 5 is fixedly connected to the water receiving tube 1, and then manually pull the external hose 8 to input water, so that the external water flow passes through the external hose 8 and is introduced into the inside of the double-way guide bucket 7. At the same time, the water flow introduced into the inside of the double-way guide bucket 7 through the external hose 8 flows to the top of the concrete block placed inside the annular foundation 10 under the action of gravity, and the excess water flows along the inside of the double-way guide bucket 7 to the bottom of the elastic airbag 9, and at the same time squeezes the elastic airbag 9, so that the air inside the elastic airbag 9 is squeezed and shrinks. Then, when the pressure of the water flow introduced into the double-way guide bucket 7 by the external hose 8 changes, the air inside the elastic airbag 9 pushes The dynamic elastic airbag 9 produces expansion or contraction deformation, thereby causing the elastic airbag 9 to change the size of the internal space occupied by the double-way guide bucket 7, and then pressurizing or decompressing the water flow inside the double-way guide bucket 7 and pushing it to the top of the concrete block inside the annular base 10, and then allowing the water flow to pass through the concrete block and flow into the inside of the water receiving tube 1. Then, the water flow passing through the concrete block within a certain period of time is read through the scale 2 on the outside of the water receiving tube 1, and then the water flow inside the water receiving tube 1 is discharged by opening the drain valve 20 and cooperating with the drain hose 12. In this way, according to the real-time water pressure changes inside the double-way guide bucket 7, the expansion and contraction characteristics of the elastic airbag 9 are used to change the space inside the double-way guide bucket 7, thereby achieving the effect of real-time adjustment of the water pressure inside the double-way guide bucket 7, effectively improving the water pressure stability during device detection, reducing the interference of water pressure changes on the detection results, and improving the detection accuracy of the device.

[0035] Reference Figure 2 and Figure 3 The top of the annular support 10 is fixedly connected with a hanging ring 13, and the hanging ring 13 is hung on the top of the inner screw ring 3.

[0036] When in use, first manually place the concrete block to be tested into the annular base 10, then pull the hanging ring 13 to drive the annular base 10 and the concrete block into the water receiving tube 1, and make the hanging ring 13 hang on the top of the inner screw ring 3, so that it is convenient to use the hanging ring 13 to hang the annular base 10 and the concrete block to be tested on the top of the inner screw ring 3, so that after the test is completed, the annular base 10 and the concrete block can be quickly taken out from the inside of the water receiving tube 1 for cleaning, which effectively improves the practicality of the device.

[0037] Reference Figure 2 and Figure 3 The top of the hanging ring 13 is fixedly connected with a sealing rubber ring 14 , and the sealing rubber ring 14 is installed between the cover tube 5 and the hanging ring 13 .

[0038] When in use, first manually rotate the cover tube 5 by holding the handle 6, so that the cover tube 5 drives the outer screw ring 4 to form a threaded connection with the inner screw ring 3, and at the same time, the bottom of the cover tube 5 moves downward along the length direction of the water receiving tube 1, and the cover tube 5 cooperates with the water receiving tube 1 to squeeze the sealing rubber ring 14 on the top of the hanging ring 13, so that the sealing rubber ring 14 is deformed under the force and filled between the cover tube 5 and the hanging ring 13, thereby effectively improving the sealing of the connection end between the cover tube 5 and the water receiving tube 1, and further improving the detection accuracy of the device.

[0039] Reference Figure 2 and Figure 3 A filter net bag 15 is fixedly connected to the bottom of the annular support platform 10.

[0040] During use, the external water source is first introduced into the interior of the double-way guide bucket 7 through the external hose 8, and then the water source inside the double-way guide bucket 7 passes through the annular base 10 and the concrete block and flows into the interior of the water receiving tube 1. At the same time, the water flow passing through the interior of the annular base 10 and entering the interior of the water receiving tube 1 is filtered and intercepted by the filter net bag 15, so that the debris and other particles flushed out of the concrete block with the water flow remain in the filter net bag 15, thereby effectively reducing the debris and other particles inside the concrete block from entering the interior of the water receiving tube 1 and the drain outlet 11, causing blockage and jamming, thereby improving the practicality of the device.

[0041] Reference Figure 1 and Figure 2 The interior of the water receiving tube 1 is fixedly connected with a drainage bucket 16 , which is installed below the annular base 10 , and the interior of the drainage bucket 16 is provided with a water pressure sensor 17 .

[0042] When in use, the drainage hopper 16 is first used to guide the water flow passing through the annular base 10 into the drain outlet 11, so that the water flow passes through the drainage hopper 16 and the water pressure sensor 17 and then enters the interior of the water receiving tube 1. At the same time, the water pressure sensor 17 is used to monitor the water pressure of the water flow passing through the drainage hopper 16 in real time, so as to provide pressure change information during the test when conducting multiple groups of comparative permeability tests, thereby further improving the detection accuracy of the device.

[0043] Reference Figure 1 and Figure 2 The inner bottom of the water receiving cylinder 1 is fixedly connected with a guide platform 18 , and the low point of the top surface of the guide platform 18 faces the drain outlet 11 .

[0044] When in use, first open the drain valve 20 to discharge the water inside the water receiving cylinder 1 through the drain outlet 11 and the drain hose 12. At the same time, the water inside the water receiving cylinder 1 flows along the top surface of the guide platform 18 toward the inside of the drain outlet 11 under the guidance of gravity and the top surface of the guide platform 18, thereby effectively reducing the influence of the residual water inside the water receiving cylinder 1 on the secondary detection accuracy.

[0045] Reference Figure 1 and Figure 2 The bottom of the water receiving cylinder 1 is fixedly connected with a supporting bottom chassis 19.

[0046] When in use, the water collecting cylinder 1 is first manually pulled to drive the supporting bottom chassis 19 to be placed on the table, thereby utilizing the supporting bottom chassis 19 to expand the contact area between the water collecting cylinder 1 and the table, and making the guide platform 18 improve the stability of the water collecting cylinder 1 and improve the practicality of the device.

[0047] Reference Figure 1 and Figure 2 The surfaces of the inner spiral ring 3 and the outer spiral ring 4 are coated with a silicone waterproof coating.

[0048] During use, by setting up a silicone waterproof coating in conjunction with the inner screw ring 3 and the outer screw ring 4, the corrosion resistance of the surface of the inner screw ring 3 and the outer screw ring 4 is effectively improved, thereby strengthening the connection stability and sealing between the inner screw ring 3 and the outer screw ring 4, and extending the service life of the device.

[0049] The implementation principle of the permeability testing device of permeable concrete in this embodiment is as follows: first, the concrete block to be tested is placed inside the annular base 10, and then the handle 6 is manually grasped to rotate the cover tube 5, and the cover tube 5 drives the outer screw ring 4 to form a threaded connection with the inner screw ring 3, so that the cover tube 5 is fixedly connected to the water receiving tube 1, and then the external water source is manually pulled by the external hose 8, so that the water flowing into the double-way guide bucket 7 through the external hose 8 passes through the concrete block and flows into the water receiving tube 1, while forming a conflict with the elastic airbag 9 along the inside of the double-way guide bucket 7. Then, the elastic airbag 9 is used to utilize the rebound characteristics of the elastic airbag 9, so that when the water pressure inside the double-way guide bucket 7 introduced by the external hose 8 changes, the water pressure inside the double-way guide bucket 7 that conflicts with the elastic airbag 9 also changes, and at the same time, the elastic airbag 9 is deformed to expand or contract, thereby changing the area occupied by the elastic airbag 9 inside the double-way guide bucket 7, so as to maintain the pressure inside the double-way guide bucket 7 stable;

[0050] Then, the water flowing through the annular base 10 is filtered and intercepted by the filter net bag 15 when entering the water receiving cylinder 1, so that the debris and other particulate matter flushed out of the concrete block with the water flow remains in the filter net bag 15. Then, the water flow passing through the concrete block within a certain period of time is read through the scale 2 on the outside of the water receiving cylinder 1, and then the water flow inside the water receiving cylinder 1 is discharged by opening the drain valve 20 and cooperating with the drain hose 12.

Claims

1. A permeable concrete permeability detection device, comprising a water receiving tube (1), characterized in that: The outer side of the water receiving tube (1) is provided with a scale (2), the top of the water receiving tube (1) is fixedly connected with an inner screw ring (3), the outer periphery of the inner screw ring (3) is threadedly connected with an outer screw ring (4), the top of the outer screw ring (4) is fixedly connected with a cover tube (5), the top of the cover tube (5) is fixedly connected with a handle (6), the inside of the cover tube (5) is fixedly connected with a double-way guide bucket (7), the middle section of the double-way guide bucket (7) is fixedly connected with an external hose (8), one end of the external hose (8) passes through the water receiving tube (1) and extends to the outside of the water receiving tube (1), the inner top of the cover tube (5) is fixedly connected with an elastic air bag (9), the inner top of the water receiving tube (1) is installed with an annular support (10), the bottom of the water receiving tube (1) is provided with a drain outlet (11), the output end of the drain outlet (11) is fixedly connected with a drain hose (12), and the inside of the drain outlet (11) is provided with a drain valve (20).

2. A permeable concrete permeability detection device according to claim 1, characterized in that: The top of the annular support platform (10) is fixedly connected to a hanging ring (13), and the hanging ring (13) is hung on the top of the inner screw ring (3).

3. The permeability detection device for permeable concrete according to claim 2, characterized in that: A sealing rubber ring (14) is fixedly connected to the top of the hanging ring (13), and the sealing rubber ring (14) is installed between the cover tube (5) and the hanging ring (13).

4. The permeable concrete permeability detection device according to claim 1, characterized in that: A filter net bag (15) is fixedly connected to the bottom of the annular support platform (10).

5. The permeability detection device for permeable concrete according to claim 1, characterized in that: A drainage hopper (16) is fixedly connected to the interior of the water receiving cylinder (1), and the drainage hopper (16) is installed below the annular support platform (10). A water pressure sensor (17) is provided inside the drainage hopper (16).

6. The permeability detection device for permeable concrete according to claim 1, characterized in that: The inner bottom of the water receiving cylinder (1) is fixedly connected to a guide platform (18), and the lower point of the top surface of the guide platform (18) faces the drain outlet (11).

7. The permeable concrete permeability detection device according to claim 1, characterized in that: The bottom of the water receiving cylinder (1) is fixedly connected to a supporting bottom chassis (19).

8. The permeable concrete permeability detection device according to claim 1, characterized in that: The surfaces of the inner spiral ring (3) and the outer spiral ring (4) are both coated with an organic silicon waterproof coating.

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