A device for detecting the impermeability of concrete
By designing a concrete impermeability testing device with components such as sliders, rollers, and lifting platforms, the problem of difficult specimen removal has been solved, enabling convenient installation and removal, improving testing efficiency and result accuracy, and reducing operational difficulty and time costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI HENGXIN TESTING GRP CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-21
AI Technical Summary
In existing concrete impermeability testing devices, specimens are difficult to remove and are easily damaged, affecting the accuracy of test results and increasing operational difficulty and time costs.
A concrete impermeability testing device was designed, which includes components such as sliders, rollers, support plates, and lifting platforms. The sliders and rollers facilitate the installation and removal of specimens, the lifting platform supports the simultaneous testing of multiple specimens, and the top cover and latches ensure the water tank is sealed. The valves facilitate rapid drainage.
It enables quick installation and removal of test specimens, improves testing efficiency, ensures the accuracy of test results, and reduces operation time and costs.
Smart Images

Figure CN224535731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building materials science and engineering technology, and in particular to a concrete impermeability testing device. Background Technology
[0002] Concrete impermeability refers to concrete's ability to resist the penetration of water or other liquids. It is one of the important indicators for measuring concrete's resistance to the penetration of moisture and harmful media. In construction engineering, the impermeability of concrete structures directly affects their durability, service life, and safety. Especially in underground engineering, water conservancy projects, and humid environments, concrete with poor impermeability is prone to leakage, corrosion, and even structural damage. Therefore, concrete impermeability testing has become a key aspect of engineering quality control. Currently, the main method for testing concrete impermeability is the penetration depth method. This involves placing the concrete specimen in a storage cylinder, applying water pressure to allow water to penetrate, and finally measuring the penetration depth to assess the impermeability.
[0003] However, existing testing devices and technologies have the following problems: Existing devices usually place concrete specimens directly into the storage cylinder. After the test is completed, the specimens may be tightly adhered to the inner wall of the storage cylinder due to water pressure, making it difficult to remove the specimens. The specimens are easily damaged during the removal process, affecting the accuracy of the test results, and also increasing the difficulty of operation and time costs.
[0004] Therefore, there is a particular need for a concrete impermeability testing device that can be easily picked up and placed to solve the above problems. Utility Model Content
[0005] To overcome the shortcomings of existing devices, such as difficulty in removing specimens, easy damage during the removal process, impact on the accuracy of test results, and increased operational difficulty and time cost, this utility model provides a concrete impermeability testing device.
[0006] This utility model is achieved through the following technical means: a concrete impermeability testing device, comprising a water tank, a controller, a lifting platform, a storage cylinder, a slider, rollers, a compression spring, a stop plate, a return spring, and a water pump. The controller is fixedly connected to the lower front side wall of the water tank. The lifting platform is slidably connected inside the water tank. Multiple storage cylinders are fixedly connected to the top of the lifting platform. A slider is slidably connected to the front side inside the storage cylinder. Rollers are rotatably connected to the rear side of the slider. A compression spring is connected between the inside of the storage cylinder and the front side wall of the slider. A stop plate is slidably connected inside the storage cylinder. A return spring is connected between the outer bottom of the stop plate and the inner bottom of the storage cylinder. A drain outlet is opened on the left side of the rear of the water tank. A water pump is fixedly connected to the right side wall of the outside of the water tank.
[0007] Furthermore, it is particularly preferred that the lifting mechanism includes a guide rod, a motor, a screw, and bevel gears. The guide rod is fixedly connected to the left side inside the water tank, and the lifting platform is slidably connected to the guide rod. The motor is fixedly connected to the right side wall outside the water tank. The motor is electrically connected to the controller. The motor output shaft passes through and is rotatably connected to the inside of the water tank. The screw is rotatably connected to the right side inside the water tank. The lifting platform is threadedly connected to the screw. Bevel gears are fixedly connected to both the motor output shaft and the upper end of the screw. The bevel gears on the motor output shaft and the bevel gears on the screw mesh with each other.
[0008] In addition, it is particularly preferred that the water tank also includes a top cover and a latch, with the top cover rotatably connected to the top of the water tank and a latch provided between the top cover and the water tank.
[0009] In addition, it is particularly preferred that the lifting platform has multiple water filter holes, each corresponding to a storage cylinder.
[0010] In addition, it is particularly preferred that a valve is rotatably connected to the rear left side of the water tank.
[0011] In addition, it is particularly preferable that the water tank has a viewing window on the front side.
[0012] As can be seen from the above description of the structure of this utility model, the design starting point, concept and advantages of this utility model are: 1. Through the cooperation of components such as slider, roller and abutment plate, the installation and removal of concrete specimens is simple and quick, reducing operation time.
[0013] 2. The lifting platform of this utility model is equipped with multiple storage cylinders, which can simultaneously test multiple test pieces, thereby improving testing efficiency.
[0014] 3. This utility model ensures the water tank is sealed by the top cover and the latch, avoiding water leakage or unstable water pressure during the testing process.
[0015] 4. This utility model features a valve on the left side of the rear of the water tank, which facilitates the quick drainage of water from the tank and saves cleaning time. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the motor, screw, and bevel gear set.
[0018] Figure 3 This is a three-dimensional structural diagram of the lifting platform, storage cylinder, and water filter holes of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the slider, roller, and compression spring components of this utility model.
[0020] The above-mentioned attached drawings include the following reference numerals: 1. Water tank; 101. Top cover; 102. Lock; 2. Controller; 3. Guide rod; 4. Lifting platform; 5. Storage cylinder; 6. Filter hole; 7. Slider; 8. Roller; 9. Compression spring; 10. Support plate; 11. Return spring; 12. Motor; 13. Screw; 14. Bevel gear; 15. Drain outlet; 16. Water supply pump. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0022] Example: A device for testing the impermeability of concrete, such as Figures 1-4 As shown, the system includes a water tank 1, a top cover 101, a latch 102, a controller 2, a lifting platform 4, a storage cylinder 5, a slider 7, rollers 8, a compression spring 9, a stop plate 10, a return spring 11, and a water pump 16. The water tank 1 has a viewing window on its front side for easy observation of the permeation of the concrete specimen inside. A valve is rotatably connected to the rear left side of the water tank 1. The top cover 101 is rotatably connected to the top of the water tank 1, and a latch 102 is provided between the top cover 101 and the water tank 1. The controller 2 is bolted to the lower front wall of the water tank 1. The lifting platform 4 is slidably connected inside the water tank 1. The water tank 1 is welded with multiple storage cylinders 5. The lifting platform 4 has multiple water filter holes 6, each corresponding to a storage cylinder 5. A slider 7 is slidably connected to the front side of the inside of the storage cylinder 5. A roller 8 is rotatably connected to the rear side of the slider 7. A compression spring 9 is connected between the inside of the storage cylinder 5 and the front wall of the slider 7. A stop plate 10 is slidably connected to the inside of the storage cylinder 5. A return spring 11 is connected between the bottom of the stop plate 10 and the bottom of the inside of the storage cylinder 5. A drain outlet 15 is opened on the left side of the rear of the water tank 1. A valve is installed at the drain outlet 15. A water supply pump 16 is bolted to the right side wall of the outside of the water tank 1.
[0023] like Figure 1 and Figure 2 As shown, the lifting mechanism includes a guide rod 3, a motor 12, a screw 13, and a bevel gear 14. The guide rod 3 is welded to the left side inside the water tank 1. The lifting platform 4 is slidably connected to the guide rod 3. The motor 12 is bolted to the right side wall outside the water tank 1. The motor 12 is electrically connected to the controller 2. The output shaft of the motor 12 is rotatably connected to the inside of the water tank 1. The screw 13 is rotatably connected to the right side inside the water tank 1. The lifting platform 4 is threaded to the screw 13. Bevel gears 14 are welded to both the output shaft of the motor 12 and the upper end of the screw 13. The bevel gears 14 on the output shaft of the motor 12 and the bevel gears 14 on the screw 13 mesh with each other.
[0024] When it is necessary to test the impermeability of concrete specimens, rotate the top cover 101 and unlock the latch 102 to open the top of the water tank 1. Move the slider 7 to drive the roller 8 forward, compressing the spring 9 and placing the concrete specimen into the storage cylinder 5. The concrete specimen contacts the abutment plate 10, pushing the abutment plate 10 downward, compressing the return spring 11, releasing the slider 7. Under the action of the compression spring 9, the roller 8 moves forward, and the roller 8 abuts the concrete specimen to ensure its stability. Rotate the top cover 101 and lock the latch 102 to ensure the water tank 1 is sealed. Start the water supply pump 16 through the controller 2 to fill the water tank 1 with water. The water level in the water tank 1 rises, and the water enters the storage cylinder 5 through the filter hole 6, applying water pressure to the concrete specimen. Under pressure, the water permeates the concrete specimen. After the water tank 1 is full, turn off the water supply pump 16 through the controller 2. The testing time is determined by... According to the standard requirements, the permeability of the concrete specimen is observed through the viewing window on the front of the water tank 1. After the test is completed, the valve at the drain outlet 15 on the left side of the rear of the water tank 1 is opened to drain the water in the water tank 1. The top cover 101 is opened, and the motor 12 is started through the controller 2. The output shaft of the motor 12 drives the bevel gear 14 to rotate. Since the bevel gear 14 on the output shaft of the motor 12 and the bevel gear 14 on the screw 13 mesh with each other, the screw 13 rotates accordingly. The lifting platform 4 lifts the concrete specimen along the guide rod 3 to a height that is easy to operate. The slider 7 is moved to drive the roller 8 to move forward. The compression spring 9 is compressed, and the pulley no longer presses against the concrete specimen. The reset spring 11 drives the abutment plate 10 to reset. The concrete specimen is taken out. When no work is needed, the motor 12 is reversed through the controller 2 to lower the lifting platform 4 to the initial position. The valve on the left side of the rear of the water tank 1 is then closed.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A device for testing the impermeability of concrete, characterized in that: The system includes a water tank (1), a controller (2), a lifting platform (4), a storage cylinder (5), a slider (7), a roller (8), a compression spring (9), a stop plate (10), a return spring (11), and a water pump (16). The controller (2) is fixed to the lower front wall of the water tank (1). The lifting platform (4) is slidably connected inside the water tank (1). Multiple storage cylinders (5) are fixed to the top of the lifting platform (4). The slider (7) is slidably connected to the front side inside the storage cylinder (5). The roller (8) is rotatably connected to the rear side of the slider (7). The compression spring (9) is connected between the inside of the storage cylinder (5) and the front wall of the slider (7). The stop plate (10) is slidably connected inside the storage cylinder (5). The return spring (11) is connected between the bottom of the stop plate (10) and the bottom of the storage cylinder (5). A drain outlet (15) is opened on the left side of the rear of the water tank (1). The water pump (16) is fixed to the right side wall of the outside of the water tank (1).
2. The concrete impermeability testing device according to claim 1, characterized in that: The lifting mechanism includes a guide rod (3), a motor (12), a screw (13), and a bevel gear (14). The guide rod (3) is fixedly connected to the left side inside the water tank (1). The lifting platform (4) is slidably connected to the guide rod (3). The motor (12) is fixedly connected to the right side wall outside the water tank (1). The motor (12) is electrically connected to the controller (2). The output shaft of the motor (12) is rotatably connected inside the water tank (1). The screw (13) is rotatably connected to the right side inside the water tank (1). The lifting platform (4) is threadedly connected to the screw (13). The bevel gear (14) is fixedly connected to both the output shaft of the motor (12) and the upper end of the screw (13). The bevel gear (14) on the output shaft of the motor (12) and the bevel gear (14) on the screw (13) mesh with each other.
3. A concrete impermeability testing device according to claim 2, characterized in that: It also includes a top cover (101) and a latch (102). The top of the water tank (1) is rotatably connected to the top of the water tank (1), and a latch (102) is provided between the top cover (101) and the water tank (1).
4. A concrete impermeability testing device according to claim 3, characterized in that: The lifting platform (4) has multiple water filter holes (6), each of which corresponds to the storage cylinder (5).
5. A concrete impermeability testing device according to claim 4, characterized in that: A valve is rotatably connected to the left rear of the water tank (1).
6. A concrete impermeability testing device according to claim 5, characterized in that: The water tank (1) has a viewing window on the front side.