A device for testing the durability of a concrete member

Abstract

The utility model discloses a kind of concrete member durability testing devices, comprising: for concrete member durability test box, the box includes upper part and lower part, the lower part of box is used to store water body;Test structure, setting in the outer wall of the box, test structure includes high-pressure pump, the inner top center of upper part is equipped with shower nozzle, high-pressure pump extracts water body in lower part and is delivered to shower nozzle;Positioning structure, the inner wall of the upper part is set, positioning structure includes sleeve and support, support is arranged in the outer wall of sleeve, sleeve is fixed in the inner cavity of upper part by support, gap is set up in the top of sleeve for the test of high-pressure water flow that shower nozzle sprays, concrete is fixed in the inner cavity of sleeve during testing. By setting box and filter screen, the water flow splashed during testing is filtered and backflow to the lower part of box, form water recycling, effectively reduce the waste of water resources, reduce test cost.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete component testing equipment, specifically a concrete component durability testing device. Background Technology

[0002] The water resistance of concrete components is one of the important indicators for measuring their durability. In construction projects, if the water resistance of concrete components is poor, moisture will seep into the interior, causing problems such as steel corrosion and freeze-thaw damage, which seriously affect the safety and service life of the structure.

[0003] Existing concrete water resistance testing devices have shortcomings. For example, when using exposed testing, the water sprayed on the surface of the component is difficult to recover and reuse. The long testing time leads to a large waste of water resources and increases the testing cost. Therefore, we need to propose a concrete component durability testing device. Utility Model Content

[0004] The purpose of this invention is to provide a concrete component durability testing device. By setting up a box and a filter screen, the water splashed during the test is filtered and returned to the bottom of the box, forming a water recycling system. This effectively reduces water waste and lowers testing costs, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A durability testing device for concrete components, comprising:

[0007] A test chamber for durability testing of concrete components, the chamber comprising an upper part and a lower part, the lower part of the chamber for storing water, and a door with an observation window on one side of the upper part;

[0008] The test structure is set on the outer wall of the box. The test structure includes a high-pressure pump and a nozzle is installed at the center of the inner top of the upper part. The high-pressure pump draws water from the lower part and delivers it to the nozzle.

[0009] The positioning structure includes a sleeve and a bracket. The bracket is set on the outer wall of the sleeve, and the sleeve is fixed to the upper inner cavity by the bracket. The top of the sleeve has a notch for the nozzle to spray high-pressure water flow for testing. During the test, concrete is placed in the inner cavity of the sleeve for fixation.

[0010] Preferably, the high-pressure pump is connected to an inlet pipe at its inlet end, with one end of the inlet pipe extending to the lower inner bottom.

[0011] Preferably, the outlet end of the high-pressure pump is connected to an outlet pipe, and the end of the outlet pipe is connected to a nozzle for water supply.

[0012] Preferably, it also includes a filter screen plate, which is disposed on the upper inner wall of the lower part. During the test, the splashed water flows through the filter screen plate and then flows back to the lower part to form a water circulation.

[0013] Preferably, it also includes a center plate, which is set at the center of the filter screen plate. An electric push rod is installed on the bottom surface of the center plate. The upper end of the telescopic rod of the electric push rod passes through the center plate and is connected to a top plate. During testing, the component is placed on the top plate and lifted into the sleeve by the electric push rod.

[0014] Preferably, it also includes a sealing ring disposed on the inner wall of the notch at the top of the sleeve. After the top plate lifts the component into the sleeve, the top surface of the component abuts against the top of the sleeve, and the sealing ring seals the contact surface between the component and the notch.

[0015] Preferably, it also includes a sealing cover, which is disposed at the bottom of the center plate, and the electric push rod is installed inside the sealing cover, with the wiring harness of the electric push rod being sealed and inserted into the sealing cover.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting up a chamber and filter screen, the water splashed during the test is filtered and returned to the bottom of the chamber, forming a water recycling system, which effectively reduces water waste and lowers the test cost.

[0018] 2. Using a high-pressure pump to deliver water to the nozzle to form a high-pressure water flow for water seepage resistance testing of concrete components can more realistically simulate the high-pressure water environment in actual use, improving the accuracy and reliability of the test. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the filter screen plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sleeve of this utility model.

[0022] In the diagram: 1. Lower part; 2. Upper part; 3. Box door; 4. High-pressure pump; 5. Nozzle; 6. Bracket; 7. Sleeve; 8. Sealing ring; 9. Filter screen; 10. Center plate; 11. Electric push rod; 12. Sealing cover; 13. Top plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-3 This utility model provides a technical solution:

[0025] A durability testing device for concrete components, comprising:

[0026] A box for testing the durability of concrete components, comprising an upper part 2 and a lower part 1. The lower part 1 is used to store water, and a door 3 with an observation window is provided on one side of the upper part 2.

[0027] The chamber is divided into upper and lower parts. The lower part 1 is a water storage area for storing test water. The upper part 2 has a door 3 with an observation window on one side for easy observation of the testing process. The chamber forms a closed space to prevent water from splashing out. The door 3 and the observation window ensure that the operator can check the test status of the concrete component in real time, while maintaining the airtightness of the test environment to reduce water loss and external interference.

[0028] The test structure, located on the outer wall of the enclosure, includes a high-pressure pump 4. A nozzle 5 is installed at the center of the inner top of the upper part 2. The high-pressure pump 4 draws water from the lower part 1 and delivers it to the nozzle 5. The inlet end of the high-pressure pump 4 is connected to an inlet pipe, one end of which extends to the inner bottom of the lower part 1. The outlet end of the high-pressure pump 4 is connected to an outlet pipe, the end of which is connected to the nozzle 5 for water supply.

[0029] High pressure pump 4 draws water from the lower part 1 of the box through the inlet pipe, and delivers it to the nozzle 5 installed in the center of the top of the upper part 2 through the outlet pipe. The nozzle 5 sprays high pressure water onto the concrete component to conduct a water seepage test. After the test is completed, the water flows back to the lower part 1 of the box.

[0030] The high-pressure pump 4 works in conjunction with the nozzle 5 to simulate the water pressure environment that concrete components may experience in actual use; the water circulation path design allows the water to be reused, which significantly reduces water waste and testing costs compared to traditional exposure testing.

[0031] The positioning structure is set on the inner wall of the upper part 2. The positioning structure includes a sleeve 7 and a bracket 6. The bracket 6 is set on the outer wall of the sleeve 7. The sleeve 7 is fixed to the inner cavity of the upper part 2 by the bracket 6. The top of the sleeve 7 has a notch for the nozzle 5 to spray high-pressure water for testing. During the test, concrete is placed in the inner cavity of the sleeve 7 for fixation. It also includes a filter screen 9, which is set on the upper inner wall of the lower part 1. During the test, the splashed water flows through the filter screen 9 and then flows back to the lower part 1 to form a water circulation.

[0032] The sleeve 7 is fixed to the inner cavity of the upper part 2 by the bracket 6, and the top notch is aligned with the nozzle 5. The concrete component is placed inside the sleeve 7. During the test, the test water is sprayed onto the exposed surface of the component at the notch. The splashed water falls back and is filtered by the filter screen plate 9 on the upper inner wall of the lower part 1 before flowing back to the lower part 1 of the box.

[0033] Sleeve 7 precisely positions the concrete component, ensuring that the water flow from nozzle 5 is applied evenly to the surface of the component; filter screen 9 intercepts concrete debris and impurities, preventing them from entering the circulation system, ensuring the normal operation of components such as high-pressure pump 4, while ensuring the cleanliness of the return water and maintaining the stability and accuracy of the circulation test.

[0034] For a preferred implementation, please refer to Figure 1-3 It also includes a center plate 10, which is set in the center of the filter screen plate 9. An electric push rod 11 is installed on the bottom surface of the center plate 10. The upper end of the telescopic rod of the electric push rod 11 passes through the center plate 10 and is connected to the top plate 13. During testing, the component is placed on the top plate 13 and lifted into the sleeve 7 by the electric push rod 11.

[0035] The center plate 10 is located at the center of the filter screen plate 9, and an electric push rod 11 is installed on the bottom surface. The electric push rod 11 is connected to the top plate 13 by its telescopic rod. During the test, the concrete component is placed on the top plate 13, the electric push rod 11 is activated, driving the top plate 13 to rise and lift the component into the sleeve 7.

[0036] The system enables automated and precise positioning of concrete components, which improves testing efficiency and positioning accuracy compared to manual operation, reduces labor costs and operational errors, ensures that the component is in the same position for each test, and improves the reliability and repeatability of test data. At the same time, the top plate 13, together with the sleeve 7, can effectively fix and position the component, avoiding displacement during the test.

[0037] After the test is completed, the electric push rod 11 is reset, the box door 3 is opened to take out the component, and it is cut open to observe whether there is water leakage inside to obtain the test results.

[0038] For a preferred implementation, please refer to Figure 3It also includes a sealing ring 8, which is set on the inner wall of the notch at the top of the sleeve 7. After the top plate 13 lifts the component into the sleeve 7, the top surface of the component abuts against the top of the inner sleeve 7 and the sealing ring 8 seals the contact surface between the component and the notch.

[0039] The sealing ring 8 is set on the inner wall of the notch at the top of the sleeve 7. When the top plate 13 lifts the concrete component into the sleeve 7, the top surface of the component abuts against the top of the inner sleeve 7. The sealing ring 8 is squeezed and deformed, tightly fitting the contact surface between the component and the notch to form a seal. This prevents water from leaking from the gap between the component and the notch of the sleeve 7 during the test, ensuring that the test pressure and water flow only act on the surface of the component, ensuring the sealing of the test environment and the accuracy of the test results, and avoiding deviations in test data due to leakage.

[0040] For a preferred implementation, please refer to Figure 1-3 It also includes a sealing cover 12, which is located at the bottom of the center plate 10. The electric push rod 11 is installed inside the sealing cover 12, and the wiring harness of the electric push rod 11 is sealed and plugged into the sealing cover 12.

[0041] The control panel is installed on the outer wall of the chamber. The control panel's built-in control system uses a programmable logic controller (PLC) or a microcontroller as the core control unit to automate the entire testing process. The control system can automatically control the start and stop of the pressurization system, the opening degree of the pressure regulating valve, and the data acquisition frequency of the data acquisition system according to preset test parameters.

[0042] The high-pressure pump 4 includes a water pump, a pressure regulating valve, and a pressure sensor. The water pump draws water from the lower part 1 and delivers it into the test chamber to provide the water pressure required for the concrete component's impermeability test. The pressure regulating valve adjusts the water pressure according to the test requirements. The pressure sensor monitors the water pressure inside the test chamber in real time and transmits the pressure signal to the control system. Based on the feedback signal from the pressure sensor, the control system automatically adjusts the pump speed and the opening of the pressure regulating valve to maintain stable water pressure during the test.

[0043] The sleeve 7 is adapted to the top plate 13 and can be either circular or rectangular. When in use, the concrete component is cut into blocks for sampling, and the shape of the sample is adapted to the shape of the sleeve 7.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A durability testing device for concrete components, characterized in that, include: A box for testing the durability of concrete components, the box comprising an upper part (2) and a lower part (1), the lower part (1) of the box being used to store water, and a box door (3) with an observation window being provided on one side of the upper part (2). The test structure is set on the outer wall of the box. The test structure includes a high-pressure pump (4) and a nozzle (5) is installed at the center of the inner top of the upper part (2). The high-pressure pump (4) draws water from the lower part (1) and delivers it to the nozzle (5). The positioning structure is set on the inner wall of the upper part (2). The positioning structure includes a sleeve (7) and a bracket (6). The bracket (6) is set on the outer wall of the sleeve (7). The sleeve (7) is fixed in the inner cavity of the upper part (2) by the bracket (6). The top of the sleeve (7) is provided with a notch for the nozzle (5) to spray high-pressure water flow for testing. During the test, concrete is placed in the inner cavity of the sleeve (7) for fixation.

2. The concrete component durability testing device according to claim 1, characterized in that: The high-pressure pump (4) has an inlet pipe connected to its inlet end, and one end of the inlet pipe extends to the inner bottom of the lower part (1).

3. The durability testing device for concrete components according to claim 1, characterized in that: The outlet end of the high-pressure pump (4) is connected to an outlet pipe, and the end of the outlet pipe is connected to the nozzle (5) for water supply.

4. The concrete component durability testing device according to claim 1, characterized in that: It also includes a filter screen (9), which is set on the upper inner wall of the lower part (1). During the test, the splashed water flows through the filter screen (9) and then flows back to the lower part (1) to form a water circulation.

5. The concrete component durability testing device according to claim 4, characterized in that: It also includes a center plate (10), which is set at the center of the filter screen plate (9). An electric push rod (11) is installed on the bottom surface of the center plate (10). The upper end of the telescopic rod of the electric push rod (11) passes through the center plate (10) and is connected to the top plate (13). During the test, the component is placed on the top plate (13) and lifted into the sleeve (7) by the electric push rod (11).

6. The durability testing device for concrete components according to claim 5, characterized in that: It also includes a sealing ring (8), which is disposed on the inner wall of the top notch of the sleeve (7). After the top plate (13) lifts the component into the sleeve (7), the top surface of the component abuts against the top of the sleeve (7) and the sealing ring (8) seals the contact surface between the component and the notch.

7. The durability testing device for concrete components according to claim 5, characterized in that: It also includes a sealing cover (12) disposed at the bottom of the center plate (10), an electric push rod (11) is installed inside the sealing cover (12), and the wiring harness of the electric push rod (11) is sealed and inserted into the sealing cover (12).

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