Automatic detector for concrete impermeability test

Abstract

The utility model provides an automatic detector for a concrete impermeability test. The automatic detector for the concrete impermeability test comprises a case, a plurality of case supports are arranged at the bottom of the case, a center hole is formed in the case in a penetrating mode, and a test mold seat ring annularly arranged in the center hole is arranged on the upper surface of the case; the case is provided with a pressing device used for pressing the test mold on the test mold seat ring, the pressing device comprises a plurality of groups of multi-connecting-rod mechanisms annularly arranged on the periphery of the test mold seat ring, each multi-connecting-rod mechanism is provided with a fixing pin sleeve, and each multi-connecting-rod mechanism is connected with a clamp connecting rod fixing disc located in a center hole through a clamp supporting connecting rod; the clamp connecting rod fixing disc is connected with a telescopic device, and the telescopic device drives the clamp connecting rod fixing disc to move downwards and pulls the clamp supporting connecting rods, so that the fixing pin sleeve swings downwards and presses a lower bottom plate of the test mold. According to the utility model, the test mold is pressed on the test mold seat ring through the automatic clamp, so that the experiment accuracy is improved.

Description

Technical Field

[0001] The utility model relates to concrete detection, in particular to an automatic detector for concrete anti-permeability test. Background Art

[0002] Concrete is a widely used building material in construction projects. Certain structures, such as hydraulic structures, underwater structures, underground structures, and other construction projects, require specific impermeability properties. Impermeability refers to the ability of a structure's materials to resist the penetration of water and other liquid media under pressure. Concrete impermeability testers are primarily used for testing concrete impermeability and determining its impermeability rating, making them widely used in production, construction, design, and research departments. Designed based on hydraulic principles, the concrete impermeability tester utilizes an electric motor to drive a water pump, connected via pipes to a pressure vessel, control valve, and test mold base. Pressure is pumped into the pressure vessel and then delivered to each specimen system for loading testing. The pipelines are equipped with an electric contact pressure gauge and an electrical control system. By adjusting the electrical contacts within the pressure gauge, the pressure can be maintained within the specified range of 0.1-6 MPa for constant pressure testing.

[0003] The utility model patent CN205246494U discloses a concrete impermeability tester, comprising a body, a test platform, six test mold bases, and a test mold for mounting a specimen fixed to the test mold base. The test mold bases are fastened to the test molds by multiple bolts. During the operation of the concrete impermeability tester for testing the impermeability of concrete, the tester needs to repeatedly tighten the bolts. Since the six sets of test molds need to be installed and removed one by one, it is very inconvenient and greatly reduces the tester's testing efficiency. Utility Model Content

[0004] The utility model provides an automatic detector for concrete anti-permeability test, which includes a chassis for fixing a test mold, wherein the test mold is an inverted "T"-shaped sleeve, wherein:

[0005] The bottom of the chassis is provided with a plurality of chassis brackets, a center hole is provided through the chassis, and a test mold seat ring is provided on the upper surface of the chassis and is arranged around the center hole;

[0006] The chassis is provided with a clamping device for pressing the test mold onto the test mold seat ring. The clamping device includes multiple groups of multi-link mechanisms arranged around the periphery of the test mold seat ring. The multi-link mechanisms are provided with fixed pin sleeves. Each multi-link mechanism is connected to a clamp connecting rod fixing plate located in the center hole through a clamp support connecting rod. The clamp connecting rod fixing plate is connected to a telescopic device. The telescopic device drives the clamp connecting rod fixing plate to move downward and pulls each clamp support connecting rod, so that the fixed pin sleeve swings downward and presses the lower base plate of the test mold.

[0007] Furthermore, each multi-link mechanism is provided with a support frame, a clamp rear support connecting rod, and a clamp front support connecting rod.

[0008] The support frame is fixed on the upper surface of the chassis, one end of the clamp rear support connecting rod is hinged to the support frame, the other end of the clamp rear support connecting rod near the center hole is hinged to the clamp front support connecting rod, and the hinge between the clamp rear support connecting rod and the clamp front support connecting rod is also rotatably connected to the top end of the clamp support connecting rod.

[0009] One end of the connecting rod of the front bracket of the clamp close to the center hole is fixedly connected with a fixing pin sleeve.

[0010] Furthermore, the telescopic device is a cylinder, one end of the cylinder is connected to the center of the clamp connecting rod fixing plate through a cylinder connecting rod, and the other end of the cylinder is connected to an external fixing device.

[0011] Furthermore, the test die seat ring is provided with a number of test bench fixing pins;

[0012] The lower base plate of the test mold is provided with a plurality of through holes corresponding to the positions of the fixing pins of the testing platform.

[0013] Furthermore, a sealing rubber ring is installed on the inner ring of the trial mold seat ring.

[0014] The utility model has a plurality of clamps for fixing the test mold distributed on the outer periphery of the test mold seat ring, wherein each clamp support frame has a clamp for clamping the test mold to fit the test bench, wherein each clamp is connected to the cylinder below through a support rod for applying pressure to the clamp to complete the close fit of the test mold and the test bench. Through this fastening method, the efficiency of handling and loading concrete samples is greatly improved, the participation of personnel is reduced, the automation efficiency is high, and the problem of manual pressurization wasting time and manpower is solved. The utility model is convenient and fast to use, and the test mold sample is automatically fastened by the cylinder-driven clamp. The experimenter only needs to classify the samples to complete the concrete impermeability test, and there is no need to manually fix the samples on the impermeability test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic front view of the structure of the automatic detector for concrete impermeability test of the present utility model;

[0017] Figure 2This is a schematic top view of the structure of the automatic detector for concrete impermeability test of the present utility model;

[0018] Figure 3 This is a schematic side view of the structure of the automatic detector for concrete impermeability test of the present utility model;

[0019] Figure 4 This is a front view schematic diagram of a test mold of an automatic detector for concrete impermeability testing of the present utility model;

[0020] Figure 5 This is a top view schematic diagram of a test mold of the automatic detector for concrete impermeability test of the present utility model;

[0021] Explanation of the accompanying drawings: 1 test mold seat ring, 2 inspection table fixing pin, 3 sealing rubber ring, 4 water inlet, 5 support frame, 6 fixture clamping bracket bolt, 7 fixture rear support connecting rod, 8 fixture support rod connecting bolt, 9 fixture front bracket connecting rod, 10 fixing pin sleeve, 11 chassis, 12 fixture support connecting rod, 13 telescopic device, 14 cylinder connecting rod, 15 connecting rod fixing disk shaft, 16 fixture connecting rod fixing disk, 17 chassis bracket, 18 test mold base, 19 fixing pin hole, 20 test mold, 21 lower base plate. DETAILED DESCRIPTION

[0022] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0023] In order to fully understand the present invention, detailed steps and detailed structures will be provided in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other implementation methods.

[0024] Reference Figure 1-5 As shown, the present invention provides an automatic detector for concrete impermeability test, which mainly includes a chassis 11 and a test mold 20. Figure 4 As shown, the test mold 20 is an inverted T-shape with a widened lower base plate 21 at the bottom, which is used to fix the test samples required for the experiment. Specifically, the lower base plate of the test mold 20 will be milled with corresponding holes according to the size of the test table fixing pin 2 above the chassis 11, so as to facilitate the fixation of the test samples.

[0025] The chassis 11 is provided with a center hole, and an annular test mold seat ring 1 is fixedly installed on the upper surface of the chassis 11 outside the center hole. A test bench fixing pin 2 is welded on the surface of the test mold seat ring 1 for positioning the test mold 20. In addition, a sealing rubber ring 3 is installed on the inner side of the test mold seat ring 1 to ensure that the test mold 20 is sealed.

[0026] The chassis 11 is provided with a clamping device for pressing the test mold 20 against the test mold seat ring 1. The clamping device includes multiple sets of multi-link mechanisms arranged around the periphery of the test mold seat ring 1. The multi-link mechanism is composed of the following structures: a support frame 5, a clamp clamping bracket bolt 6, a clamp rear support connecting rod 7, a clamp support rod connecting bolt 8, a clamp front support connecting rod 9, a fixing pin sleeve 10, a clamp support connecting rod 12, a telescopic device 13, a cylinder connecting rod 14, a connecting rod fixing plate rotating shaft 15, and a clamp connecting rod fixing plate 16.

[0027] The support frame 5 is fixed to the upper side of the chassis 11 by welding and is fixed around the test mold seat ring 1 in a circular manner. The clamp rear connecting rod 7 is fixed to the fixing pin of the support frame 5 by hinged connection. The clamp front bracket connecting rod 9 is rotatably connected to the clamp support connecting rod 12 and the clamp rear bracket connecting rod 7 by means of a rotating shaft pin. The clamp front bracket connecting rod 9 is connected to the fixing pin sleeve 10 by welding.

[0028] The lower end of the telescopic device 13 is riveted to the fixture connecting rod fixing plate 16 via a cylinder connecting rod 12, while the upper end of the telescopic device 13 is connected to an external fixture. The fixture's internal connecting rod fixing plate 16 is connected to the fixture support connecting rod 12 via a connecting rod fixing shaft 15. The telescopic device 13 drives the fixture connecting rod fixing plate 16 through the up-and-down piston movement, which in turn drives the fixing pin sleeve 10 downward through the fixture support connecting rod 12, clamping the test mold 20 and achieving both fixation and sealing.

[0029] The working process of this device is as follows:

[0030] At the start of the experiment, the experimenter loaded the concrete sample into the test mold 20 and then placed the test mold 20, containing the test sample, on the test mold seat 1, according to the position of the test bench fixing pins 2 installed next to the test mold seat 1. The air pump was turned on to apply pressure. The air pressure pushed the valve plate in the telescopic mechanism 13 to the lower limit. The operation of the telescopic mechanism 13 drove the cylinder connecting rod 14 downward. The cylinder connecting rod 14 connected to the clamp connecting rod fixing plate 16. The fixing plate is hinged to six clamp support connecting rods 12, and the upper ends of the connecting rods are connected to the clamp support connecting bolts 8. The downward movement of the cylinder connecting rod 14 causes the clamp connection fixing plate 16 connected to the clamp support connecting rods 12 to move downward. The clamp support connecting rods 12 drive the clamp front bracket connecting rod 9 downward, closing the gap between the test mold 20 and the test mold seat 1, thus achieving a sealing effect.

[0031] The advantages of the present invention are:

[0032] 1. Enhanced experimental accuracy: This concrete impermeability test automatic detector ensures the sealed connection between the test mold and the test table through precise mechanical structure design, thereby greatly reducing the possibility of leakage during the experiment and improving the accuracy and reliability of the experimental data.

[0033] 2. Improved experimental efficiency: The introduction of automated fixtures not only reduces manual operation time but also avoids errors caused by human factors. Experimenters simply place the sample into the test mold and start the equipment to automatically complete the tightening and testing process, greatly improving experimental efficiency.

[0034] 3. Reduced labor intensity: Traditional manual pressurization and fixation of the test mold consumes a lot of manpower, and prolonged operation can easily lead to fatigue and errors. However, the automatic tester of this utility model uses a cylinder to drive the clamp, achieving automatic tightening of the test mold, greatly reducing the labor intensity of the experimenter.

[0035] 4. Compact structure and easy maintenance: The overall structure of the equipment is well designed, and the connections between the components are tight and easy to disassemble, which is convenient for daily maintenance and upkeep. At the same time, the use of standardized parts design makes the maintenance and replacement of the equipment more convenient.

[0036] 5. High safety performance: During operation, the equipment adopts multiple safety protection measures, such as air pressure overload protection and cylinder limit protection, to ensure the safety of experimenters and equipment. At the same time, the use of components such as sealing rings also effectively prevents leakage and contamination during the experiment.

[0037] 6. Environmental Protection and Energy Saving: Due to its automated operation, the automatic concrete permeability tester reduces manual intervention and energy consumption, making it a significant environmental and energy-saving device. Furthermore, its long service life and low maintenance further reduce its operating costs.

[0038] In summary, the utility model has a simple structure and can quickly install the test mold and the test table, thereby improving the test efficiency. The advantage of this device is that it can quickly load and unload concrete water-resistance test samples and quickly replace samples, solving the problem of manual pressurization wasting time and manpower, and improving the practicality of the utility model. The utility model's automatic concrete water-resistance test instrument has significant advantages in improving experimental efficiency, reducing labor intensity, and enhancing experimental accuracy, and is suitable for large-scale promotion and application.

[0039] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An automatic detector for concrete impermeability test, comprising a chassis for fixing a test mold (20), wherein the test mold (20) is an inverted "T"-shaped sleeve, characterized in that: A plurality of chassis brackets (17) are provided at the bottom of the chassis (11); a center hole is provided through the chassis (11); and a test mold seat ring (1) is provided on the upper surface of the chassis (11) and is arranged around the center hole. The chassis (11) is provided with a clamping device for pressing the test mold (20) onto the test mold seat ring (1), and the clamping device includes a plurality of multi-link mechanisms arranged around the periphery of the test mold seat ring (1), and the multi-link mechanisms are provided with a fixed pin sleeve (10), and each of the multi-link mechanisms is connected to a clamp connecting rod fixing plate (16) located in the center hole through a clamp support connecting rod (12), and the clamp connecting rod fixing plate (16) is connected to a telescopic device (13), and the telescopic device (13) drives the clamp connecting rod fixing plate (16) to move downward and pulls each of the clamp support connecting rods (12), so that the fixed pin sleeve (10) swings downward and is pressed against the upper surface of the lower base plate (21) of the test mold (20).

2. The automatic detector for concrete impermeability test according to claim 1, characterized in that: Each of the multi-link mechanisms is provided with a support frame (5), a clamp rear support connecting rod (7), and a clamp front support connecting rod (9). The support frame (5) is fixed on the upper surface of the chassis (11), one end of the clamp rear support connecting rod (7) is hinged to the support frame (5), the other end of the clamp rear support connecting rod (7) close to the center hole is hinged to the clamp front support connecting rod (9), and the hinged portion between the clamp rear support connecting rod (7) and the clamp front support connecting rod (9) is also rotatably connected to the top end of the clamp support connecting rod (12). One end of the clamp front bracket connecting rod (9) close to the center hole is fixedly connected to the fixing pin sleeve (10).

3. The automatic detector for concrete impermeability test according to claim 1, characterized in that: The telescopic device (13) is a cylinder, one end of which is connected to the center of the clamp connecting rod fixing plate (16) through a cylinder connecting rod (14), and the other end of which is connected to an external fixing device.

4. The automatic detector for concrete impermeability test according to claim 1, characterized in that: The test mold seat ring (1) is provided with a plurality of test platform fixing pins (2); The lower base plate of the test mold (20) is provided with a plurality of through holes corresponding to the positions of the fixing pins (2) of the detection platform.

5. The automatic detector for concrete impermeability test according to claim 1, characterized in that: A sealing rubber ring (3) is installed on the inner ring of the trial mold seat ring (1).

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