Concrete impermeability test device
By combining the wear-resistant rubber airbag with the air pump in a sealing mechanism and designing a recovery system, the problems of reduced sealing performance and high water consumption are solved, achieving efficient sealing and energy saving and environmental protection in the concrete impermeability testing device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
AI Technical Summary
The sealing rubber gaskets of existing concrete impermeability testing devices are prone to aging, leading to reduced sealing performance, pressure loss, and high water consumption, requiring frequent replenishment.
The system uses wear-resistant rubber airbags in conjunction with an air pump to achieve adjustable sealing of the mold, and combines this with a recycling mechanism to filter and recycle the water source.
The test device's sealing performance was improved, water consumption was reduced, operational complexity was lowered, and the device's environmental friendliness and efficiency were enhanced.
Smart Images

Figure CN223977076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering quality testing technology, specifically a concrete impermeability testing device. Background Technology
[0002] In engineering construction, water seepage can seriously damage the performance of concrete and structural safety, directly affecting the quality of the project and the safety of the building. By using a concrete seepage resistance testing device to conduct seepage resistance tests on concrete, the waterproofing capacity can be accurately assessed, thus providing a key basis for scientifically judging the quality of the project and ensuring the safety and durability of the building project.
[0003] The permeability test requires ensuring the mold is airtight so that the pressure can be applied to the specimen stably and accurately, allowing water to penetrate only through the concrete specimen. Over time, the sealing rubber gasket of the mold will wear down and age, resulting in a decrease in the mold's airtightness and pressure loss. Therefore, there is an urgent need to develop a concrete permeability test device to solve these practical problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a concrete impermeability testing device, thus solving the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides a concrete impermeability testing device through the following technical solution: a box body, a booster pump is fixedly installed on one side of the bottom of the box body, a water tank is fixedly installed at one end of the booster pump inlet pipe and connected to it, and the water tank is located on the other side of the bottom of the box body, and a test mold base is fixedly installed at one end of the booster pump outlet pipe and connected to it, and the test mold base is located on both sides of the top of the box body.
[0006] The top of the housing is provided with multiple sets of equidistant sealing mechanisms. Each sealing mechanism includes a mold shell located above the mold base. The mold shell is connected to the mold base by bolts. A wear-resistant rubber airbag is embedded in the bottom of the mold shell. A flow regulating valve extending into the mold shell is fixedly installed on one side of the top of the wear-resistant rubber airbag. A solenoid valve tube extending into the mold shell is fixedly installed on the other side of the top of the wear-resistant rubber airbag. An air pump is fixedly installed on the top of one side of the housing, and a three-way pipe connected to one end of the flow regulating valve is fixedly installed on the air pump.
[0007] Preferably, a recycling mechanism is fixedly installed on the top of the tank body. The recycling mechanism includes a filter box located on the top of the water tank. A through collection box is fixedly installed on the top of the filter box, and an inclined filter plate is fixedly installed inside the collection box. A collection trough is opened on the top of the tank body, and the bottom of the collection trough is connected to the top of the collection box through a conveying pipe.
[0008] Preferably, the top of the box is provided with water collection troughs at equal intervals, and the water collection troughs are connected to the collection troughs.
[0009] Preferably, a storage box is fixedly installed on one side of the collection box, and the top of the storage box is connected to the bottom of the collection box.
[0010] Preferably, the storage box is movably mounted with a hinge on the front, and a box door is fixedly mounted on one side of the hinge.
[0011] Preferably, an inspection door is movably installed on one side of the front of the enclosure via a hinge, and a handle is fixedly installed on one side of the front of the inspection door.
[0012] This invention provides a concrete impermeability testing device. Compared with the prior art, it has the following advantages:
[0013] Beneficial effects:
[0014] 1. An air pump, when powered on, generates suction to draw in outside air. This air is then delivered to a flow regulating valve via a three-way pipe. The flow regulating valve restricts the airflow from the pump, ensuring a fixed amount of air enters the wear-resistant rubber bladder. This causes the bladder to expand, sealing the gap between the mold shell and the mold base. This improves the sealing effect against water seepage in the concrete, preventing the sealing rubber gasket from aging over time and causing reduced mold sealing and pressure loss. Ultimately, this achieves the goal of allowing water to seep only through the concrete specimen.
[0015] 2. The water source after the test can be collected through the collection tank and transported to the collection tank through the delivery pipe. Then, the impurities in the water source can be separated through the inclined filter plate and transported to the storage tank for storage along the inclined surface of the filter plate. The filtered water source enters the filter tank and undergoes secondary filtration. The filtered water source enters the water tank by gravity for recycling, achieving the purpose of water source recycling. This reduces the water consumption when using the device to resist seepage in concrete, increases the energy-saving and environmental protection effect of the device, and also avoids the need for operators to frequently replenish the water source for the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of a partial internal structure of the present invention;
[0018] Figure 3 This is a partial structural diagram of the sealing mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the sealing mechanism assembly of this utility model;
[0020] Figure 5 This is a partial structural diagram of the sealing mechanism of this utility model;
[0021] Figure 6 This is a partial structural diagram of the air pump of this utility model;
[0022] Figure 7 This is a schematic diagram showing the installation location of the recycling mechanism of this utility model;
[0023] Figure 8 This is a partial structural diagram of the recycling mechanism of this utility model.
[0024] In the diagram: 1. Box body; 2. Booster pump; 3. Test mold base; 4. Water tank; 5. Sealing mechanism; 501. Test mold shell; 502. Wear-resistant rubber airbag; 503. Flow regulating valve; 504. Solenoid valve tube; 505. Air pump; 6. Recovery mechanism; 601. Collection box; 602. Inclined filter plate; 603. Filter box; 604. Storage box; 605. Collection trough; 7. Box door; 8. Inspection door; 9. Water collection trough. 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] First implementation method:
[0027] refer to Figure 1-6 A concrete impermeability test device includes a box body 1. A booster pump 2 is fixedly installed on one side of the bottom inside the box body 1. A water tank 4 is fixedly installed at one end of the water inlet pipe of the booster pump 2 and is connected to it. The water tank 4 is located on the other side of the bottom inside the box body 1. A test mold base 3 is fixedly installed at one end of the water outlet pipe of the booster pump 2 and is connected to it. The test mold base 3 is located on both sides of the top of the box body 1.
[0028] The top of the housing 1 is provided with multiple sets of equidistant sealing mechanisms 5. The sealing mechanism 5 includes a test mold shell 501 located above the test mold base 3. The test mold shell 501 is connected to the test mold base 3 by bolts. A wear-resistant rubber airbag 502 is embedded in the bottom of the test mold shell 501. A flow regulating valve 503 extending out of the test mold shell 501 is fixedly installed on one side of the top of the wear-resistant rubber airbag 502. A solenoid valve pipe 504 extending out of the test mold shell 501 is fixedly installed on the other side of the top of the wear-resistant rubber airbag 502. An air pump 505 is fixedly installed on the top of one side of the housing 1, and a three-way pipe connected to one end of the flow regulating valve 503 is fixedly installed on the air pump 505.
[0029] An inspection door 8 is hinged to one side of the front of the enclosure 1, and a handle is fixedly installed on one side of the front of the inspection door 8.
[0030] After placing the concrete specimen inside the mold shell 501, the mold shell 501 containing the concrete specimen is placed on top of the mold base 3, and the bolts are tightened to fix the mold shell 501 and the mold base 3.
[0031] After the concrete specimen is fixed, the air pump 505 is powered on to generate suction to draw in outside air and deliver the air to the flow regulating valve 503 through a three-way pipe. The flow regulating valve 503 can limit the air delivered by the air pump 505, so that a certain amount of air enters the wear-resistant rubber airbag 502, thereby causing the wear-resistant rubber airbag 502 to expand in volume.
[0032] The wear-resistant rubber airbag 502, which expands in volume, can fit and seal the gap between the mold shell 501 and the mold base 3, improving the sealing effect of concrete impermeability and avoiding the problem of reduced mold sealing and pressure loss. After the test, the air inside the wear-resistant rubber airbag 502 is discharged by energizing the solenoid valve tube 504, thereby releasing the sealing state between the mold shell 501 and the mold base 3.
[0033] By opening the access door 8, maintenance personnel can easily carry out maintenance work on the electrical equipment inside the device, avoiding the need to disassemble the enclosure 1 to perform maintenance work on the electrical equipment inside the device, thus providing convenience for subsequent maintenance personnel.
[0034] Second implementation method:
[0035] When testing the impermeability of concrete, it is inconvenient to collect and use the water flowing out of the mold, which increases the water consumption during the impermeability test and requires operators to frequently replenish the water supply to the device.
[0036] refer to Figure 3-4 , Figure 7-8In the second embodiment of this utility model, a recycling mechanism 6 is fixedly installed on the top inside the box 1. The recycling mechanism 6 includes a filter box 603 located on the top of the water tank 4. A through collection box 601 is fixedly installed on the top of the filter box 603, and an inclined filter plate 602 is fixedly installed inside the collection box 601. A collection trough 605 is opened on the top of the box 1, and the bottom of the collection trough 605 is connected to the top of the collection box 601 through a conveying pipe.
[0037] The top of the box 1 is provided with water collection troughs 9 at equal intervals, and the water collection troughs 9 are connected to the collection trough 605. A storage box 604 is fixedly installed on one side of the collection box 601, and the top side of the storage box 604 is connected to the bottom side of the collection box 601. A hinge is movably installed on the front of the storage box 604, and a box door 7 is fixedly installed on one side of the hinge.
[0038] Water is first collected through collection tank 605 and then transported to collection box 601 through conveying pipe. At this time, the inclined filter plate 602 inside collection box 601 plays a role in separating impurities from the water. The impurities are transported to storage box 604 along the inclined surface of the inclined filter plate 602. The filtered water then enters filter box 603 for secondary filtration. The water that has completed secondary filtration enters water tank 4 by gravity and is recycled. This not only reduces the water consumption of the device when conducting anti-permeability tests on concrete and improves the energy-saving and environmental protection effect, but also avoids operators from frequently replenishing the water supply to the device.
[0039] In addition, when the concrete specimen is removed from the top of the box 1, causing water leakage, the water collection tank 9 can collect the leaked water in time and transport it to the collection tank 605 so that it can be filtered and impurities removed by the inclined filter plate 602 and the filter box 603. The storage box 604 is specifically used to collect and store the impurities generated during the water filtration process. The operator only needs to open the box door 7 on the front of the storage box 604, which is installed by a hinge, to collect and process the impurities inside.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete impermeability test device, comprising a box (1), a booster pump (2) fixedly installed on one side of the bottom of the inside of the box (1), a water tank (4) fixedly installed at one end of the water inlet pipe of the booster pump (2) in through connection, and a test mold base (3) fixedly installed at one end of the water outlet pipe of the booster pump (2) in through connection. Characterized in that; The top of the box (1) is provided with a plurality of groups of equidistant sealing mechanism (5), the sealing mechanism (5) includes the test mold shell (501) above the test mold base (3), the test mold shell (501) is connected with the test mold base (3) through the bolt, the bottom of the test mold shell (501) is embedded with wear-resistant rubber air bag (502), one side of the top of the wear-resistant rubber air bag (502) is fixedly installed with the flow regulating valve (503) extending out of the test mold shell (501), the other side of the top of the wear-resistant rubber air bag (502) is fixedly installed with the electromagnetic valve pipe (504) extending out of the test mold shell (501), the top of one side of the box (1) is fixedly installed with the air pump (505), and the air pump (505) is fixedly installed with the three-way pipe connected with one end of the flow regulating valve (503).
2. The permeability test device for concrete according to claim 1, characterized in that: The top of the inside of the box (1) is fixedly installed with the recycling mechanism (6), the recycling mechanism (6) includes the filter box (603) on the top of the water tank (4), the top of the filter box (603) is fixedly installed with the through collecting box (601), and the inside of the collecting box (601) is fixedly installed with the inclined filter plate (602), and the top of the box (1) is provided with the collecting groove (605), and the bottom of the collecting groove (605) is connected with the top of the collecting box (601) through the conveying pipe.
3. A permeability test apparatus for concrete as claimed in claim 2, wherein: The top of the box (1) is provided with a water collecting tank (9) equidistantly, and the water collecting tank (9) is through with the collecting groove (605).
4. The permeability test apparatus for concrete according to claim 2, wherein: One side of the collecting box (601) is fixedly installed with the storage box (604), and one side of the top of the storage box (604) is throughly linked with the bottom of one side of the collecting box (601).
5. A permeability test apparatus for concrete as claimed in claim 4, wherein: The front of the storage box (604) is movably installed with a hinge, and one side of the hinge is fixedly installed with a box door (7).
6. The permeability test apparatus for concrete according to claim 1, wherein: The front of one side of the box (1) is movably installed with an access door (8) through a hinge, and the front of one side of the access door (8) is fixedly installed with a handle.