Automatic water seepage detection device for penetration resistance detection test

Abstract

The utility model relates to the technical field of anti-seepage detection tests, and discloses an automatic water seepage detection device for an anti-seepage detection test, during the test, a tested piece at a test position is placed on an anti-seepage instrument, and a to-be-tested surface of the tested piece faces upwards; the device comprises a signal acquisition instrument, a plurality of resistance testing elements, a pressure sensor and a base, the base comprises an upper frame and a lower frame which are oppositely arranged, and a plurality of supporting rods used for connecting and supporting the upper frame and the lower frame. The structures of the upper frame and the lower frame are matched with the structure of a tested piece at a test position, so that the base is sleeved outside the tested piece at the test position during a test, and the upper frame is positioned above a to-be-tested surface of the tested piece; a connecting rod is mounted on the supporting rod; the resistance testing element is mounted at one end of the connecting rod away from the supporting rod; the plurality of resistance testing elements are positioned on the same plane and are in contact with a to-be-tested surface of a tested piece during testing; the plurality of resistance testing elements are electrically connected with the signal acquisition instrument and transmit resistance signals of the to-be-tested surface in various states to the signal acquisition instrument.

Description

Technical Field

[0001] This utility model relates to the field of anti-permeability testing technology, and specifically to an automatic seepage detection device for anti-permeability testing. Background Technology

[0002] Water penetration resistance testing is a method used to assess the ability of materials or structures to resist water penetration. This test is commonly used for quality inspection of building materials (such as concrete and mortar), waterproofing layers, waterproof coatings, and waterproof membranes to ensure they effectively prevent water penetration during use, thereby guaranteeing the safety and durability of buildings. Therefore, the quality of water penetration resistance testing has a significant impact on accurately assessing the water penetration resistance of materials or structures.

[0003] The existing anti-permeability testing equipment requires manual observation and recording of water seepage in real time during use. The problem is that staff need to continuously observe and record on-site, as well as conduct night patrols, resulting in low work efficiency and high costs. Utility Model Content

[0004] This utility model aims to provide an automatic seepage detection device for anti-permeability testing, which changes the manual inspection method to an automatic data collection method. Without modifying the original anti-permeability testing device, it can automatically record the seepage and pressurization conditions throughout the entire anti-permeability testing process, improve testing efficiency, obtain comprehensive data, and provide data support for accurately assessing anti-permeability.

[0005] The basic solution provided by this utility model is: an automatic seepage detection device for anti-permeability testing. During the anti-permeability testing, the test piece is placed on the anti-permeability instrument at the test position with the test surface facing upward. The anti-permeability instrument includes a pressurized main pipe and a water tank. The device includes a signal acquisition instrument, several resistance testing elements, and a base.

[0006] The base includes an upper frame and a lower frame arranged opposite to each other, and a number of support rods for connecting and supporting the upper frame and the lower frame; the structure of the upper frame and the lower frame is adapted to the structure of the test piece in the test position, so that the base is sleeved on the outside of the test piece in the test position during the test, wherein the upper frame is located above the test surface of the test piece.

[0007] A connecting rod is installed on the support rod; the resistance testing element is installed at the end of the connecting rod away from the support rod; several resistance testing elements are located on the same plane and contact the test surface of the test piece during the test; several resistance testing elements are connected to a signal acquisition instrument, and during the test, several resistance testing elements transmit resistance signals of various states of the test surface to the signal acquisition instrument, and the signal acquisition instrument receives and processes the resistance signals transmitted by several resistance testing elements.

[0008] Furthermore, when several of the resistance testing elements are located on the same plane, they form a circular arrangement.

[0009] Furthermore, the test surface of the device under test is circular; when a plurality of the resistance testing elements are arranged in a circular pattern, the radius of the circle is half the radius of the circular test surface.

[0010] Furthermore, the resistance testing elements are evenly distributed when arranged in a circular pattern.

[0011] Furthermore, there are at least three resistance testing elements.

[0012] Furthermore, it also includes a pressure sensor connected to the signal acquisition instrument. The pressure sensor is connected in series on the pressurization main pipe of the permeability tester. During the test, the pressure sensor transmits water pressure change signals to the signal acquisition instrument. The signal acquisition instrument receives and processes the water pressure change signals and sends water pressure control signals.

[0013] Furthermore, it also includes a water level controller, which is installed in a preset position inside the water tank of the anti-permeability instrument, and is used to transmit the water level signal to the water tank replenishment control circuit.

[0014] Furthermore, the connecting rod is movably connected to the support rod.

[0015] Furthermore, the connecting rod is a telescopic connecting rod.

[0016] The working principle and advantages of this utility model are as follows: During the test, the base is placed outside the test piece in the test position. Several resistance testing elements contact the test surface of the test piece and are located at the position where specific state detection is required. The resistance testing elements collect resistance signals in real time under specific states such as water presence, waterlessness, dampness, and dryness on the surface of the test piece. The pressure sensor collects water pressure change signals in real time and transmits them synchronously to the signal acquisition instrument. The signal acquisition instrument converts the resistance and pressure signals through its internal processor and corresponding specific circuits, and performs data processing such as the formation and fitting of time curves, which facilitates the data analysis of the entire process of anti-permeability testing.

[0017] Compared with existing technologies, this device does not require modification of existing anti-permeability testing equipment, enabling automatic seepage detection at a relatively low cost. It features a simple structure, easy maintenance, and compatibility with the tested component, offering strong versatility. Utilizing resistance testing elements, it can detect multiple states of the tested surface. Through signal acquisition, it performs data processing and analysis, automatically, effectively, and accurately detecting multiple states of seepage, resulting in faster and more precise assessments. The entire testing process requires only one operator to set up the device at the start of the test, allowing for unified data retrieval at the back end. This simplifies operation and improves testing efficiency. Furthermore, the signal acquisition system features multi-channel, long-term recording, long-term storage, and data export functions, providing technical support for data analysis and processing of front-end signal inputs. The data is easily traceable and can be repeatedly reviewed and confirmed, facilitating multi-dimensional data analysis and improving the accuracy and comprehensiveness of the assessment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic seepage detection device for anti-permeability testing provided in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the automatic seepage detection device (during the test) for the anti-permeability test provided in Embodiment 1 of this utility model;

[0020] Figure 3 This is a top view of the layout of several resistance testing elements provided in Embodiment 1 of this utility model. Detailed Implementation

[0021] The following detailed explanation illustrates the specific implementation methods:

[0022] The markings in the accompanying drawings include: upper frame 11, lower frame 12, support rod 13, resistance testing element 21, connecting rod 22, sliding locking structure 23, test piece 31, and permeability meter 32.

[0023] Example 1

[0024] The basics are as follows: Figure 1 and Figure 2 As shown: an automatic seepage detection device for permeability testing. During the permeability testing, the test piece 31 is placed on the permeability meter 32 in the test position with the test surface of the test piece 31 facing upward. The permeability meter 32 also includes a pressurized main pipe and a water tank.

[0025] The automatic seepage detection device includes a base, which includes an upper frame 11 and a lower frame 12 arranged opposite to each other, and a plurality of support rods 13 for connecting and supporting the upper frame 11 and the lower frame 12. The structure of the upper frame 11 and the lower frame 12 of the base is adapted to the structure of the test piece 41 in the test position, so that the base is sleeved on the outside of the test piece 31 in the test position during the test, wherein the upper frame 11 is located above the test surface of the test piece 31.

[0026] Specifically, in this embodiment, the test piece 31 is a cylindrical structure, and the test site is as follows: Figure 1 The test piece 31 is shown in a vertical position with the test surface facing upwards. The upper frame 11 and lower frame 12 are adapted to form a circular frame structure, and their diameters are larger than the cross-sectional diameter of the test piece 31 by 100-200 mm. The height of the entire base is greater than the height of the test piece 31 in the test position (height as shown). Figure 2 (As indicated by the arrow), the height difference is 300-600mm. The above dimensions are reasonably designed and can meet the requirements of the base being sleeved outside the test piece 31 in the test position during the test. There are at least three support rods 13, evenly distributed between the upper frame 11 and the lower frame 12 to ensure good connection and support.

[0027] The base can be made of steel and can be stably placed on the test platform 42 under its own weight, ensuring that there will be no displacement during the entire test. In order to ensure stability, the lower frame 12 of the base can also be glued to the test platform 42. This method will not make any modifications to the original anti-permeability testing device and will have the least impact on the original device.

[0028] A connecting rod 22 is installed on the support rod 13; the resistance testing element 21 is installed at the end of the connecting rod 22 away from the support rod 13; the distance between the connecting rod 22 and the upper frame 11 is adapted to the height of the test piece in the test position, so that several resistance testing elements 21 are located on the same plane and make good contact with the test surface of the test piece during the test, which meets the requirements for water seepage detection, that is, water seepage can be effectively detected by the resistance testing element 21.

[0029] Specifically, such as Figure 3 As shown, when several resistance testing elements are located on the same plane, they form a circular arrangement. These elements are evenly distributed, and the test surface of the device under test is circular. When the resistance testing elements are arranged in a circle, the radius of this circle (shown by the dashed circle in the figure) is half the radius of the circle of the test surface (shown by the solid circle in the figure). In this embodiment, there are three resistance testing elements; in other embodiments, there may be more than three resistance testing elements, which can be arranged according to the device under test and actual testing requirements. Furthermore, they can be added at equal intervals.

[0030] The connecting rod 22 is a telescopic connecting rod; furthermore, the connecting rod 22 is movably connected to the support rod 13; the end of the connecting rod 22 away from the resistance testing element 21 is provided with a sliding locking structure 23 adapted to the base support rod 13. The sliding locking structure 23 can be implemented using existing technology, as long as the height of the connecting rod 22 on the support rod can be adjusted using the sliding locking structure 23; the telescopic connecting rod can adjust the position of the resistance testing element 21 on the surface to be measured, and the connecting rod 22 is movably connected to the support rod 13 to adapt to test objects of different heights, thereby improving the versatility of this device.

[0031] Several resistance testing elements are connected to a signal acquisition instrument. During the test, the several resistance testing elements transmit resistance signals of various states of the surface under test to the signal acquisition instrument. The signal acquisition instrument receives and processes the resistance signals transmitted by the several resistance testing elements.

[0032] Specifically, the resistance testing element and the signal acquisition instrument are connected by wires. The wires are strategically positioned along the base and support rod based on the test site conditions. The wire length must also accommodate the movement of the connecting rod to prevent the wires from being pulled during rod movement, which could loosen the wire connections of the resistance testing element and affect data acquisition. Specific conditions include the presence of water, absence of water, dampness, and dryness of the tested component surface. The resistance testing element 21 can be a programmable digital resistance testing element; existing equipment can be selected, and mature products capable of achieving the above functions can be chosen.

[0033] It also includes a pressure sensor connected to the signal acquisition instrument. The pressure sensor is connected in series with the pressure main pipe of the permeability tester. During the test, the pressure sensor transmits water pressure change signals, or water pressure change resistance signals or electrical signals, to the signal acquisition instrument. The signal acquisition instrument receives and processes the water pressure change signals and sends water pressure control signals.

[0034] During the test, the test piece 31 is fixed to the permeability meter 32 via a chassis. The base is fitted over the test piece 31 at the test position, with the centers aligned. The lower frame 12 is placed on the permeability meter 32, while the upper frame 11 is away from the permeability meter 32. Several resistance testing elements 21 are located below the upper frame 11 of the base and above the test piece 31 at the test position, ensuring good contact between the resistance testing elements 21 and the test surface of the test piece 31. The signal acquisition instrument is confirmed to receive data normally. The resistance testing elements 21 collect the resistance signal of the test surface in real time, and the pressure sensor collects the water pressure change signal in real time, which is synchronously transmitted to the signal acquisition instrument as the test data for storage and processing. Based on its built-in processor and specific circuitry, the signal acquisition instrument can make reasonable use of concrete. The working principle of the conductivity meter is to digitize the collected signals, perform comprehensive processing and judgment. Specifically, the signal acquisition instrument amplifies the resistance signal and converts it into a digital signal through its internal specific circuit amplifier, forming a seepage situation-time curve, which facilitates data analysis of seepage detection. The signal from the pressure sensor located in the pressure main pipe is transmitted to the signal acquisition instrument to record the pressurization status of the anti-permeability instrument every 8 hours and the real-time pressure value. Finally, through signal amplification and conversion, a pressure-time curve is recorded. The seepage situation-time curve and the pressure-time curve are fitted together with the same time axis to form a multi-data curve, which facilitates data analysis of the entire anti-permeability detection process. An instrument with a conventional processor and circuit that can achieve the above functions is sufficient.

[0035] The automatic seepage detection device for anti-permeability testing provided in this embodiment does not require modification of existing anti-permeability testing devices. It can achieve automatic seepage detection at a relatively low cost, has a simple structure, is easy to maintain, and is compatible with the test piece at the test position, making it highly versatile. It can detect multiple states of the test surface using resistance testing elements, and performs signal data processing and analysis through a signal acquisition instrument. This enables automated, effective, and accurate detection of multiple states of seepage, resulting in faster and more precise evaluation. The entire testing process requires only one operator to set up the device at the start of the test, and data can be uniformly retrieved at the back end, simplifying operation and improving testing efficiency. Simultaneously, the signal acquisition instrument has multi-channel, long-term recording, long-term storage, and data export functions, providing technical support for data analysis and processing of front-end signal inputs. The data is easy to trace and can be repeatedly reviewed and confirmed, facilitating multi-dimensional data analysis and improving the accuracy and comprehensiveness of the evaluation.

[0036] Example 2

[0037] Unlike Embodiment 1, the device also includes a water level controller, which is installed at a preset position inside the water tank of the anti-permeability instrument. In this embodiment, it can be installed at a high position in the water tank to ensure that the water tank maintains a high water level and stores an appropriate amount of water. The water level controller is used to transmit the water level signal to the water tank replenishment control circuit. When the water level is lower than the preset position, the water tank replenishment control circuit automatically replenishes water to the water tank, realizing automated water replenishment and solving the problem that personnel need to pay attention to water shortage at any time.

[0038] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An automatic seepage detection device for a permeability testing test, wherein during the permeability testing test, the test specimen is placed in the test position on the permeability meter with the test surface facing upwards, and the permeability meter includes a pressurized main pipe and a water tank, characterized in that, The device includes a signal acquisition unit, several resistance testing elements, and a base; The base includes an upper frame and a lower frame arranged opposite to each other, and a number of support rods for connecting and supporting the upper frame and the lower frame; the structure of the upper frame and the lower frame is adapted to the structure of the test piece in the test position, so that the base is sleeved on the outside of the test piece in the test position during the test, wherein the upper frame is located above the test surface of the test piece. A connecting rod is installed on the support rod; the resistance testing element is installed at the end of the connecting rod away from the support rod; several resistance testing elements are located on the same plane and contact the test surface of the test piece during the test; several resistance testing elements are connected to a signal acquisition instrument, and during the test, several resistance testing elements transmit resistance signals of various states of the test surface to the signal acquisition instrument, and the signal acquisition instrument receives and processes the resistance signals transmitted by several resistance testing elements.

2. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, When several of the aforementioned resistance testing elements are located on the same plane, they form a circular arrangement.

3. The automatic seepage detection device for anti-permeability testing according to claim 2, characterized in that, The test surface of the device under test is circular; when several resistance testing elements are arranged in a circular pattern, the radius of the circle is half the radius of the test surface.

4. The automatic seepage detection device for anti-permeability testing according to claim 2, characterized in that, When the aforementioned resistance testing elements are arranged in a circular pattern, they are evenly distributed.

5. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, The resistance testing element is at least three.

6. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, It also includes a pressure sensor connected to the signal acquisition instrument. The pressure sensor is connected in series with the pressure main pipe of the permeability tester. During the test, the pressure sensor transmits water pressure change signals to the signal acquisition instrument. The signal acquisition instrument receives and processes the water pressure change signals and sends water pressure control signals.

7. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, It also includes a water level controller, which is installed in a preset position inside the water tank of the anti-permeability instrument, and is used to transmit the water level signal to the water tank replenishment control circuit.

8. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, The connecting rod is movably connected to the support rod.

9. The automatic seepage detection device for anti-permeability testing according to claim 1, characterized in that, The connecting rod is a telescopic connecting rod.

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