Lightweight pervious concrete water injection experimental device

Abstract

The utility model belongs to building technical field especially is a kind of light water-permeable concrete water injection experimental device, including bottom plate, the top of bottom plate is welded with two side plates.The utility model places the light water-permeable concrete test piece to be tested on bearing plate, carries out water injection to light water-permeable concrete test piece in spray head, with the continuous performance of water injection, light water-permeable concrete test piece constantly absorbs moisture, its weight gradually increases, and the increase of test piece weight is passed on bearing plate, makes bearing plate to be subjected to downward pressure and drive T-shaped rod to compress spring in support box, bearing plate drives first copper block and second copper block contact, controller closes corresponding electromagnetic valve, and flow sensor can real-time monitoring the water flow condition in discharge pipe, and data transmission is given to controller, realizes the accurate control to water injection process, effectively improves the accuracy and reliability of experimental data, and waste of water resource is avoided simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a lightweight permeable concrete water injection test device. Background Technology

[0002] Lightweight permeable concrete, as a new type of environmentally friendly building material, is widely used in sponge city construction, ecological permeable pavement, and other fields due to its high porosity (typically 15%-30%) and excellent water permeability. Its core performance indicators include permeability coefficient, porosity, and compressive strength, which are closely related to the internal pore structure and water-cement ratio of the concrete. In laboratory research and engineering quality control, its permeability needs to be accurately measured through water injection tests to guide material proportion optimization and construction process adjustments.

[0003] Currently available water injection testing devices mostly employ a flooding method during the water injection process. While this method is simple to operate, it lacks a precise water volume control mechanism. Construction personnel primarily rely on personal experience to control the water volume; however, due to differences in experience levels among personnel and the susceptibility to environmental factors, emotional states, and other influences during actual operation, the judgment and control of water volume lack stability and accuracy. This imprecise water control method easily leads to over-injection. Over-injection not only exceeds the saturated water absorption capacity of the lightweight permeable concrete specimen, resulting in distorted experimental data that fails to accurately reflect its true permeability, but also wastes water resources and increases experimental costs. Therefore, we propose a lightweight permeable concrete water injection testing device to address these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a lightweight permeable concrete water injection test device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A lightweight permeable concrete water injection test device includes a base plate, two side plates welded to the top of the base plate, and an experimental chamber welded to the top of the two side plates. Multiple partitions are fixedly connected to the inner wall of the experimental chamber, dividing it into multiple experimental compartments. Two support boxes are welded to the bottom inner wall of each experimental compartment. Multiple T-shaped rods are installed inside each support box, and springs are welded between the bottom inner wall of the T-shaped rods and the top inner wall of the support box. The ends of the T-shaped rods on the same side extend to the outside of the support box and are welded to a bearing plate. A first copper block is fixedly connected to the bottom of one of the two bearing plates in the same experimental compartment, and a second copper block is fixedly connected to the top of one of the two support boxes in the same experimental compartment. A compartment door is provided on the front side of the experimental compartment. Multiple branch pipes are connected to and fixed to the top of the experimental chamber, each branch pipe having a solenoid valve. The bottom end of each branch pipe extends into the experimental compartment and is connected to and fixed to a nozzle. Multiple discharge pipes are connected to and fixed to the bottom of the experimental chamber, each discharge pipe having a flow sensor. A controller is located on the right side of the experimental chamber.

[0009] Furthermore, the spring is movably sleeved on the corresponding T-shaped rod, and the first copper block and the corresponding second copper block are in movable contact.

[0010] Furthermore, the top ends of the multiple branch pipes are connected and fixed to the same main water pipe.

[0011] Furthermore, the bottom ends of the plurality of discharge pipes are connected to and fixed to the same main drain pipe, the end of which extends to the outside of one of the two side plates.

[0012] Furthermore, a water tank is fixedly connected to the top of the base plate, and a water pump is fixedly connected to the top of the water tank.

[0013] Furthermore, the water pump's inlet pipe is connected to the water tank, and the water pump's outlet pipe is connected to and fixed with an L-shaped pipe, the end of which is connected to and fixed to the main water pipe.

[0014] Furthermore, the controller, the first copper block, the second copper block, the solenoid valve, the flow sensor, and the water pump are electrically connected via conductive lines.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a lightweight permeable concrete water injection test device, which has the following beneficial effects:

[0017] This invention involves placing a lightweight permeable concrete specimen to be tested on a support plate and injecting water into the specimen through a nozzle. As water injection continues, the specimen absorbs water and its weight gradually increases. This weight increase is transmitted to the support plate, causing it to experience downward pressure. This pressure drives the T-shaped rod to compress the spring within the support box. Simultaneously, the support plate causes the first copper block to contact the second copper block. The controller closes the corresponding solenoid valve, cutting off the water flow channel of that branch pipe. A flow sensor monitors the water flow in the discharge pipe in real time, indirectly reflecting the permeability of the specimen and transmitting the data to the controller. This achieves precise control of the water injection process, effectively improving the accuracy and reliability of experimental data while avoiding water waste. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the base plate of this utility model after it is hidden.

[0020] Figure 3 This is a three-dimensional structural diagram of the concealed storage door of this utility model.

[0021] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the connection between the support box and the bearing plate of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the cut-open support box of this utility model.

[0024] In the diagram: 1. Base plate; 2. Side plate; 3. Experiment box; 4. Partition; 5. Experiment chamber; 6. Support box; 7. T-shaped rod; 8. Spring; 9. Bearing plate; 10. First copper block; 11. Second copper block; 12. Chamber door; 13. Branch pipe; 14. Nozzle; 15. Solenoid valve; 16. Main water pipe; 17. Drain pipe; 18. Flow sensor; 19. Main drainage pipe; 20. Controller; 21. Water pump; 22. L-shaped pipe; 23. Water tank. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figure 1-6 As shown, an embodiment of this utility model discloses a lightweight permeable concrete water injection test device, including a base plate 1, two side plates 2 welded to the top of the base plate 1, an experimental box 3 welded to the top of the two side plates 2, multiple partitions 4 fixedly connected to the inner wall of the experimental box 3, the multiple partitions 4 dividing the experimental box 3 into multiple experimental chambers 5, two support boxes 6 welded to the bottom inner wall of the experimental chamber 5, multiple T-shaped rods 7 provided inside the support boxes 6, springs 8 welded between the bottom inner wall of the T-shaped rods 7 and the top inner wall of the support boxes 6, the ends of the multiple T-shaped rods 7 on the same side extending to the outside of the support boxes 6 and welded with bearing plates 9, the same The bottom of one of the two support plates 9 in the experimental chamber 5 is fixedly connected to a first copper block 10. The top of one of the two support boxes 6 in the same experimental chamber 5 is fixedly connected to a second copper block 11. The front of the experimental chamber 5 is provided with a chamber door 12. The top of the experimental box 3 is connected to and fixed with multiple branch pipes 13. A solenoid valve 15 is provided on the branch pipe 13. The bottom end of the branch pipe 13 extends into the experimental chamber 5 and is connected to and fixed with a nozzle 14. The bottom of the experimental box 3 is connected to and fixed with multiple discharge pipes 17. A flow sensor 18 is provided on the discharge pipe 17. A controller 20 is provided on the right side of the experimental box 3.

[0028] In use, the lightweight permeable concrete specimen to be tested is placed on the support plate 9. Once all specimens in the experimental chambers 5 are in place, water is injected into the lightweight permeable concrete specimens through the nozzle 14. As the water injection continues, the lightweight permeable concrete specimens continuously absorb water, and their weight gradually increases. This increase in specimen weight is transmitted to the support plate 9, causing the support plate 9 to experience downward pressure, which in turn causes the T-shaped rod 7 to compress the spring 8 downward within the support box 6. Simultaneously, the support plate 9 causes the first copper block 10 to contact the second copper block 11, indicating that the lightweight permeable concrete specimen in the experimental chamber 5 has reached the preset water injection volume. The controller 20 then closes the corresponding solenoid valve 15, cutting off the water flow channel of the branch pipe 13. The flow sensor 18 can monitor the water flow in the discharge pipe 17 in real time, indirectly reflecting the permeability of the specimens, and transmits the data to the controller 20. This achieves precise control of the water injection process, effectively improving the accuracy and reliability of experimental data, while avoiding water waste.

[0029] In some embodiments, the spring 8 is movably sleeved on the corresponding T-shaped rod 7, and the first copper block 10 is in movable contact with the corresponding second copper block 11.

[0030] Once the controller 20 detects that the first copper block 10 is in contact with the second copper block 11, it determines that the lightweight permeable concrete specimen in the experimental chamber 5 has reached the preset water injection volume.

[0031] In some embodiments, the top ends of multiple branch pipes 13 are connected to and fixed to the same main water pipe 16.

[0032] In some embodiments, the bottom ends of a plurality of discharge pipes 17 are connected to and fixed to the same drain manifold 19, and the end of the drain manifold 19 extends to the outside of one of the two side plates 2.

[0033] Excess water during the experiment or water discharged from the specimen after the experiment will be collected through the discharge pipe 17 into the main drainage pipe 19 and eventually discharged outside the experimental device.

[0034] In some embodiments, a water tank 23 is fixedly connected to the top of the base plate 1, a water pump 21 is fixedly connected to the top of the water tank 23, the inlet pipe of the water pump 21 is connected to the water tank 23, the outlet pipe of the water pump 21 is connected to and fixed with an L-shaped pipe 22, and the end of the L-shaped pipe 22 is connected to and fixed with the main water pipe 16.

[0035] The controller 20 controls the water pump 21 to start. The water pump 21 draws water from the water tank 23, sucks the water in through the inlet pipe, and then delivers the water to the L-shaped pipe 22 through the outlet pipe. The L-shaped pipe 22 introduces the water into the main water pipe 16 and discharges it into the nozzle 14 through the branch pipe 13 to inject water into the lightweight permeable concrete specimen.

[0036] In some embodiments, the controller 20, the first copper block 10, the second copper block 11, the solenoid valve 15, the flow sensor 18, and the water pump 21 are electrically connected via conductive lines.

[0037] When the first copper block 10 and the second copper block 11 come into contact to form a closed circuit, the electrical signal can be quickly transmitted to the controller 20 through the conduction line. The controller 20 can accurately determine the moment when the lightweight permeable concrete specimen reaches the preset water injection volume according to the preset program, and immediately send a closing command to the solenoid valve 15 to accurately control the water injection process and avoid excessive or insufficient water injection.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight pervious concrete water injection experiment device comprising a bottom plate (1), characterized in that: Two side plates (2) are welded to the top of the base plate (1), and an experimental box (3) is welded to the top of the two side plates (2). Multiple partitions (4) are fixedly connected to the inner wall of the experimental box (3), and the multiple partitions (4) divide the experimental box (3) into multiple experimental chambers (5). Two support boxes (6) are welded to the bottom inner wall of the experimental chamber (5). Multiple T-shaped rods (7) are provided inside the support boxes (6). Springs (8) are welded between the bottom inner wall of the T-shaped rods (7) and the top inner wall of the support boxes (6). The ends of the multiple T-shaped rods (7) on the same side extend to the outside of the support boxes (6) and are welded with bearing plates (9). One of the two bearing plates (9) in the same experimental chamber (5) supports... The bottom of the carrier plate (9) is fixedly connected to a first copper block (10). The top of one of the two support boxes (6) in the same experimental chamber (5) is fixedly connected to a second copper block (11). The front side of the experimental chamber (5) is provided with a chamber door (12). The top of the experimental chamber (3) is connected to and fixed with multiple branch pipes (13). The branch pipes (13) are provided with solenoid valves (15). The bottom end of the branch pipes (13) extends into the experimental chamber (5) and is connected to and fixed with a nozzle (14). The bottom of the experimental chamber (3) is connected to and fixed with multiple discharge pipes (17). The discharge pipes (17) are provided with flow sensors (18). The right side of the experimental chamber (3) is provided with a controller (20).

2. The lightweight pervious concrete water injection experimental device according to claim 1, characterized in that: The spring (8) is movably sleeved on the corresponding T-shaped rod (7), and the first copper block (10) and the corresponding second copper block (11) are in movable contact.

3. The lightweight pervious concrete water injection experimental device according to claim 2, characterized in that: The top ends of the multiple branch pipes (13) are connected and fixed to the same main water pipe (16).

4. The lightweight pervious concrete water injection experimental device according to claim 3, characterized in that: The bottom ends of the plurality of discharge pipes (17) are connected and fixed to the same drain manifold (19), the end of which extends to the outside of one of the two side plates (2).

5. The lightweight pervious concrete water injection experimental device according to claim 4, characterized in that: A water tank (23) is fixedly connected to the top of the base plate (1), and a water pump (21) is fixedly connected to the top of the water tank (23).

6. The lightweight pervious concrete water injection experimental device according to claim 5, characterized in that: The inlet pipe of the water pump (21) is connected to the water tank (23), and the outlet pipe of the water pump (21) is connected to and fixed with an L-shaped pipe (22). The end of the L-shaped pipe (22) is connected to and fixed with the main water pipe (16).

7. The lightweight pervious concrete water injection experimental device according to claim 6, characterized in that: The controller (20), the first copper block (10), the second copper block (11), the solenoid valve (15), the flow sensor (18), and the water pump (21) are electrically connected via conductive lines.

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