An anti-infiltration detection device

Abstract

The utility model discloses a kind of anti-permeation detection devices, including pressurized water tank, the outer wall of pressurized water tank is fixed intercommunication with inlet pipe and drain pipe, the top of pressurized water tank is fixed intercommunication with multiple butt flanges, the top of multiple butt flanges is fixedly connected with flange plate, the top of multiple flange plates is fixed intercommunication with double-layer sealing cylinder.The utility model realizes sealing by air pump and makes annular rubber sealing ring expand, without manually operating fragile sealing ring, also without heating hot melt paraffin that can affect the performance of concrete, both simplify process, save time, and greatly improve sealing stability, avoid high-pressure water flow seepage error;In sample fixing and detection stability, limit by rotary cover cooperation top rod to cylindrical concrete sample top, solve the problem that sample is easy to displace and damage sealing when water pressure rises, guarantee detection smoothly.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a permeability testing device. Background Technology

[0002] Concrete frequently comes into contact with water, groundwater, or other liquid media during use. Leakage can lead to deterioration mechanisms such as steel corrosion, freeze-thaw damage, and alkali-aggregate reaction, thereby weakening the structure's load-bearing capacity and durability. Permeability testing allows for timely assessment of concrete's density and waterproofing performance, identifying potential cracks or pore defects, ensuring the project meets design durability requirements, and extending its service life. However, traditional methods of sealing and fixing samples in concrete permeability testing have many drawbacks, severely impacting testing efficiency and the accuracy of results. Currently, the mainstream sealing methods are generally as follows: First, multiple rubber sealing rings are manually inserted one by one into the outer wall of the cylindrical concrete specimen. This method is not only cumbersome and time-consuming, but the sealing rings are also prone to damage or overturning due to stretching during insertion, resulting in poor sealing. Under high pressure, water can seep out along the gap between the concrete specimen and the inner wall of the mold, causing misjudgment. Second, hot-melt paraffin wax is used to wrap and seal the specimen. Although this method can achieve effective sealing, the operation requires heating and melting the paraffin wax, and the paraffin wax on the surface of the specimen must be removed after the test. The process is complicated, and the high temperature may have a slight impact on the original properties of the concrete. In addition, during the test, when the water pressure in the pressurized water tank steadily increases, the water pressure will generate an upward buoyancy force on the concrete specimen. Existing devices often lack an effective axial limiting mechanism, and the concrete specimen is prone to upward displacement or shaking under this buoyancy. This displacement will not only destroy the formed sidewall seal, but also cause water seepage. Therefore, we propose a seepage resistance testing device to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a seepage detection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A seepage resistance testing device includes a pressurized water tank. An inlet pipe and a drain pipe are fixedly connected to the outer wall of the pressurized water tank. Multiple connecting flanges are fixedly connected to the top of the pressurized water tank. A flange plate is fixedly connected to the top of each of the multiple connecting flanges. A double-layer sealing cylinder is fixedly connected to the top of each of the multiple flange plates. Multiple annular rubber sealing rings are fixedly connected to the inner walls of each of the multiple double-layer sealing cylinders. An air inlet pipe is fixedly connected to the outer wall of each of the multiple double-layer sealing cylinders. A conical guide cylinder is fixedly connected to the top of each of the multiple conical guide cylinders. A groove is formed on the top of each of the multiple grooves. An I-shaped column is rotatably connected to the inner wall of each of the multiple grooves. A limiting component is provided on the outer wall of the I-shaped column.

[0006] Preferably, the limiting component includes multiple vertical sleeves, and the outer walls of multiple I-shaped columns are rotatably fitted with rotating covers. The tops of the multiple rotating covers are respectively fixedly connected to the bottoms of the multiple vertical sleeves. The inner walls of the multiple vertical sleeves are threaded with top rods. The height of the top rods can be flexibly adjusted through the threaded structure, which facilitates the adjustment of the position of the top rods according to the columnar concrete samples of different heights, ensuring that the bottom of the top rods can contact the top of the sample.

[0007] Preferably, a plunger pump is fixedly connected to one end of the water inlet pipe, and valves are fixedly installed on the outer walls of both the water inlet pipe and the water outlet pipe.

[0008] Preferably, an annular sealing gasket is placed between the flange and the mating flange. The annular sealing gasket can fill the tiny gaps at the connection surfaces of the two and achieve a sealing effect by utilizing its own elasticity, thereby preventing high-pressure water in the pressurized water tank from leaking out from the flange connection.

[0009] Preferably, one end of multiple air inlet pipes is fixedly connected to the same air pump, and two handles are fixedly connected to the outer wall of multiple double-layer sealing cylinders. The two handles provide convenient force points for operators to move, install or disassemble the double-layer sealing cylinders.

[0010] Preferably, the outer walls of the multiple rotating covers are provided with multiple vent holes.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] This solution uses an air pump to expand the annular rubber sealing ring to achieve a seal, eliminating the need for manual operation of the easily damaged sealing ring and the need to heat the hot-melt paraffin wax, which may affect the performance of concrete. This simplifies the process, saves time, and significantly improves the sealing stability, preventing errors caused by water leakage under high pressure. Regarding the stability of sample fixation and testing, the rotating cover and top rod limit the top of the columnar concrete sample, solving the problem of sample displacement and seal damage when water pressure increases, ensuring smooth testing. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of an anti-permeability testing device proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a seepage detection device proposed in this utility model;

[0016] Figure 3 This is a partial cross-sectional structural diagram of an anti-permeability testing device proposed in this utility model.

[0017] In the diagram: 1. Pressurized water tank; 2. Inlet pipe; 3. Drain pipe; 4. Connecting flange; 5. Flange; 6. Annular sealing gasket; 7. Double-layer sealing cylinder; 8. Annular rubber sealing ring; 9. Air inlet pipe; 10. Handle; 11. Conical guide cylinder; 12. I-shaped column; 13. Rotating cover; 14. Vertical sleeve; 15. Top rod. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1-3 As shown, a seepage detection device is disclosed, comprising a pressurized water tank 1. An inlet pipe 2 and a drain pipe 3 are fixedly connected to the outer wall of the pressurized water tank 1. A plunger pump is fixedly connected to one end of the inlet pipe 2. Valves are fixedly installed on the outer walls of both the inlet pipe 2 and the drain pipe 3. Multiple connecting flanges 4 are fixedly connected to the top of the pressurized water tank 1. Flanges 5 are fixedly connected to the top of the multiple connecting flanges 4. The flanges 5 and the connecting flanges 4 work together to ensure a stable connection between the pressurized water tank 1 and the double-layer sealing cylinder 7, providing reliable support for the connection between the two. It also facilitates the subsequent disassembly, repair or replacement of the double-layer sealing cylinder 7, improving the maintenance flexibility of the device.

[0020] An annular sealing gasket 6 is placed between flange 5 and mating flange 4. The annular sealing gasket 6 can fill the tiny gaps at the connection surfaces of the two and achieve a sealing effect by utilizing its own elasticity, thus preventing high-pressure water in pressurized water tank 1 from leaking out from the flange connection.

[0021] Multiple flanges 5 are all fixedly connected to each other with double-layer sealing cylinders 7. The double-layer sealing cylinders 7 have an internal interlayer. Multiple annular rubber sealing rings 8 are fixedly connected to each other on the inner walls of the multiple double-layer sealing cylinders 7. After the air pump delivers compressed air through the air inlet pipe 9, it will expand. The outer wall of the expanded sealing ring can tightly squeeze the outer wall of the columnar concrete sample to form a reliable seal.

[0022] Multiple double-layer sealing cylinders 7 have air inlet pipes 9 fixedly connected to their outer walls. Existing exhaust valves are installed on the air inlet pipes 9 for depressurizing the annular rubber sealing ring 8 after the anti-permeability test. One end of each of the multiple air inlet pipes 9 is fixedly connected to the same air pump. Existing solenoid valves are installed on the connecting pipes of the multiple air inlet pipes 9 and the air pump. The existing solenoid valves have the function of switching the air passage on and off, adjusting the airflow direction and distribution path by electromagnetically controlling the valve core.

[0023] Two handles 10 are fixedly connected to the outer wall of multiple double-layer sealing cylinders 7. The two handles 10 provide convenient force points for operators to move, install or disassemble the double-layer sealing cylinders 7. A conical guide cylinder 11 is fixedly connected to the top of each of the multiple double-layer sealing cylinders 7. A groove is opened on the top of each of the multiple conical guide cylinders 11. An I-shaped column 12 is rotatably connected to the inner wall of each of the multiple grooves.

[0024] The outer wall of the I-shaped column 12 is provided with a limiting component, which includes multiple vertical sleeves 14. The outer walls of the multiple I-shaped columns 12 are rotatably fitted with rotating covers 13. The outer walls of the multiple rotating covers 13 are provided with multiple vent holes. The tops of the multiple rotating covers 13 are fixedly connected to the bottoms of the multiple vertical sleeves 14. The inner walls of the multiple vertical sleeves 14 are threaded with top rods 15. The vertical sleeves 14 can be threadedly connected to the top rods 15. The height of the top rods 15 can be flexibly adjusted through the threaded structure, which is convenient for adjusting the position of the top rods 15 according to columnar concrete samples of different heights, ensuring that the bottom of the top rods 15 can contact the top of the sample, thereby limiting the sample of different specifications and improving the applicability of the device.

[0025] Working principle: During use, multiple cylindrical concrete samples are sequentially slid down through multiple conical guide cylinders 11 into the interior of multiple double-layer sealing cylinders 7. The conical guide cylinders 11 serve as guides. After placement, the air pump operates to distribute compressed air into multiple inlet pipes 9 via existing solenoid valves. The compressed air then flows into the interior of the multiple double-layer sealing cylinders 7, causing multiple annular rubber sealing rings 8 to expand. The outer walls of the expanded annular rubber sealing rings 8 press against the outer walls of the cylindrical concrete samples, sealing them. This is achieved through multiple I-shaped columns 12. Rotate multiple rotating covers 13 to position them on top of multiple conical guide cylinders 11, and then rotate multiple push rods 15 through multiple vertical sleeves 14 so that the bottom of multiple push rods 15 respectively contact the top of multiple cylindrical concrete samples, limiting the top of the cylindrical concrete samples to prevent them from moving due to water pressure during subsequent testing. The plunger pump operates to bring external water into the pressurized water tank 1 through the inlet pipe 2, while the valve on the drain pipe 3 is closed. As the water pressure in the pressurized water tank 1 steadily rises and gradually reaches the maximum pressure value for testing, the plunger pump stops operating.

[0026] It should be noted that, in actual use, an existing PLC controller can be added. The PLC controller is electrically connected to the plunger pump, air pump, and solenoid valve to facilitate overall control.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seepage resistance testing device, comprising a pressurized water tank (1), characterized in that, The outer wall of the pressurized water tank (1) is fixedly connected to an inlet pipe (2) and a drain pipe (3). The top of the pressurized water tank (1) is fixedly connected to multiple connecting flanges (4). The top of each of the multiple connecting flanges (4) is fixedly connected to a flange plate (5). The top of each of the multiple flange plates (5) is fixedly connected to a double-layer sealing cylinder (7). The inner wall of each of the multiple double-layer sealing cylinders (7) is fixedly connected to multiple annular rubber sealing rings (8). The outer wall of each of the multiple double-layer sealing cylinders (7) is fixedly connected to an air inlet pipe (9). The top of each of the multiple double-layer sealing cylinders (7) is fixedly connected to a conical guide cylinder (11). The top of each of the multiple conical guide cylinders (11) is provided with a groove. The inner wall of each of the multiple grooves is rotatably connected to an I-shaped column (12). The outer wall of the I-shaped column (12) is provided with a limiting component.

2. The anti-permeability testing device according to claim 1, characterized in that, The limiting assembly includes multiple vertical sleeves (14), and the outer walls of multiple I-shaped columns (12) are rotatably fitted with rotating covers (13). The tops of the multiple rotating covers (13) are respectively fixedly connected to the bottoms of the multiple vertical sleeves (14), and the inner walls of the multiple vertical sleeves (14) are threadedly connected with top rods (15).

3. The anti-permeability testing device according to claim 1, characterized in that, A plunger pump is fixedly connected to one end of the water inlet pipe (2), and valves are fixedly installed on the outer walls of both the water inlet pipe (2) and the drain pipe (3).

4. The anti-permeability testing device according to claim 1, characterized in that, An annular sealing gasket (6) is placed between the flange (5) and the mating flange (4).

5. The anti-permeability testing device according to claim 1, characterized in that, Multiple air inlet pipes (9) are connected to the same air pump at one end, and two handles (10) are fixedly connected to the outer wall of multiple double-layer sealing cylinders (7).

6. The anti-permeability testing device according to claim 2, characterized in that, Multiple ventilation holes are provided on the outer walls of the multiple rotating covers (13).

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