Acid and alkali resistance cyclic detection device for building material test piece

Abstract

The utility model discloses an acid and alkali resistant cyclic detection device for a building material test piece, and belongs to the technical field of material corrosion resistance detection. A building material test piece acid and alkali resistance cyclic detection device comprises a test box body and a box cover, a sample frame is fixedly installed in the test box body, the device further comprises a smearing frame located on one side of the sample frame and a driving workpiece, and the movable end of the driving workpiece extends into the test box body and is fixed to the smearing frame; the at least two independent liquid storage tanks are used for storing an acidic solution and an alkaline solution respectively and are connected to the sample rack through pipelines, liquid is driven by the pump to flow, the pump extracts the corresponding solution from the liquid storage tanks and conveys the solution to the smearing rack through pipelines, and the workpiece is driven to drive the smearing rack to move according to a preset path; the coating frame uniformly coats the acid-base solution on the surface of the test piece, so that the effect of detecting the building material without manually brushing the acid (base) solution is achieved, and the harm to workers caused by manual brushing is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to material corrosion resistance detection technical field especially relates to a building material test piece acid and alkali cycle detection device. BACKGROUND

[0002] Building materials are often exposed to various corrosive environments in practical application, such as acid rain, industrial waste gas, etc., these environmental factors can have a negative impact on the long-term performance of the material, therefore, in the research and development and quality control process of building materials, the evaluation of its acid and alkali resistance is very important, the traditional acid and alkali resistance test method depends on manual operation, such as manually brushing acid and alkali solution to the surface of building materials, and observing the corrosion of the material by visual observation or simple tools.

[0003] Due to the strong corrosive nature of acid and alkali solution, improper operation during manual brushing can easily cause chemical splashing, causing burns or other health hazards to the operator, and manual operation cannot ensure the consistency of the thickness, uniformity and solution dosage of each brushing, making the entire test process lack strict standardization, which is not conducive to scientific evaluation of material performance. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems that in prior art, if operation is improper during manual brushing, chemical splashing is easily caused, burns or other health hazards are brought to the operator, and manual operation cannot ensure the consistency of the thickness, uniformity and solution dosage of each brushing, making the entire test process lack strict standardization, which is not conducive to scientific evaluation of material performance, and proposes a building material test piece acid and alkali cycle detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A building material test piece acid and alkali cycle detection device, comprising a test box body and a box cover, the box cover is snap-fitted on the open end of the test box body, a circulation control system is integrated in the test box body to control the spraying period, monitor and adjust the environmental conditions, a sample holder is fixedly installed in the test box body to fix the building material test piece to be tested, further comprising a brushing holder on one side of the sample holder and a driving workpiece fixedly installed on the test box body, wherein the movable end of the driving workpiece extends into the test box body and is fixed with the brushing holder, so that the brushing holder uniformly brushes acid and alkali solution on the surface of the test piece, at least two independent liquid storage tanks are provided to store acid and alkali solutions respectively and are connected to the sample holder through pipelines to drive the liquid flow by a pump.

[0007] In order to ensure the flow and pressure of the solution stable and controllable, preferably, the sample holder comprises a U-shaped block, a support arm rotatably installed in the opening end of the U-shaped block, and a brush roller rotatably installed at one end of the support arm close to the test piece, wherein a shunt pipe is fixedly installed on the support arm, the shunt pipe is connected with the liquid storage tank through a pipeline, and the working surface of the shunt pipe faces the brush roller.

[0008] In order to improve the accuracy and stability of the coating process, further, a guide rod is fixedly installed on the sample holder, and the U-shaped block is provided with a through hole matched with the guide rod.

[0009] In order to allow the support arm to maintain good contact with the surface of the test piece, further, a containing groove is provided in the U-shaped block, a top rod is slidably installed in the containing groove, one end of the top rod abuts against the guide rod, and the other end of the top rod is rotatably connected with the support arm, wherein the diameter of the guide rod gradually increases from one end close to the driving workpiece to the other end and then tends to be stable.

[0010] In order to adapt to different shapes and sizes of test pieces, further, a spring is movably installed on the top rod, and two ends of the spring are fixedly connected with the inner bottom surface of the containing groove and the support arm respectively.

[0011] In order to effectively collect the overflow solution and keep the inside of the test box clean, further, an installation groove is provided in the test box, the installation groove penetrates the inside of the test box, and a water receiving box is slidably installed in the installation groove to collect the overflow solution.

[0012] Further, a partition plate is installed in the water receiving box to separate different types of recovered liquids.

[0013] In order to effectively remove excess solution, further, a scraper is elastically installed on one side of the U-shaped block close to the inner bottom surface of the test box.

[0014] In order to enhance the function of the sample holder and provide a more reliable test piece fixing method, preferably, a lead screw and a guide rail are arranged in the sample holder, and a clamping block is jointly installed on the lead screw and the guide rail, the clamping block is symmetrically arranged, and the clamping block is driven to approach or move away from each other through the lead screw, so as to clamp the test building material test piece.

[0015] In order to enable the operator to clearly see the experimental progress inside the test box from the outside, preferably, observation windows made of high-strength transparent material are arranged on both sides of the test box, so that the experimental process can be monitored without opening the box cover.

[0016] Compared with the prior art, the building material test piece acid and alkali resistance cycle detection device has the following beneficial effects:

[0017] 1、The building material test piece acid and alkali resistance cycle detection device, through the setting of the liquid storage tank, the smearing frame and the driving workpiece, the pump extracts the corresponding solution from the liquid storage tank and delivers it to the smearing frame through the pipeline, and the driving workpiece drives the smearing frame to move according to the preset path, in the process, the smearing frame uniformly smears the acid and alkali solution on the surface of the test piece, which plays a role of not needing manual brushing of the acid (alkali) solution for building material detection, and reduces the harm caused to the workers by manual brushing.

[0018] 2、The building material test piece acid and alkali resistance cycle detection device, through the increase of the guide rod, provides a stable track for the movement of the supporting arm, ensures that the smearing frame does not deviate or shake during movement, thereby improving the smearing precision, and at the same time, due to the diameter change of the guide rod, the top rod can automatically adjust its extension length during sliding according to the different positions of the guide rod, ensuring that the supporting arm can be in contact with the surface of the test piece during the whole stroke, and maintaining a stable working state.

[0019] 3、The building material test piece acid and alkali resistance cycle detection device, through the increase of the observation window, the operator can clearly see the experimental progress inside the test box from the outside, including the smearing action of the brush roller, the state change of the test piece, etc., which helps to find any abnormal situation in time and take necessary measures. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The overall structure schematic view of the building material test piece acid and alkali resistance cycle detection device is provided.

[0021] Figure 2 The test box structure schematic view of the building material test piece acid and alkali resistance cycle detection device is provided.

[0022] Figure 3 The sample rack structure schematic view of the building material test piece acid and alkali resistance cycle detection device is provided.

[0023] Figure 4 The smearing frame structure schematic view of the building material test piece acid and alkali resistance cycle detection device is provided.

[0024] Figure 5 The smearing frame structure schematic view of the building material test piece acid and alkali resistance cycle detection device is provided. Figure 4 The enlarged view of the A structure in the building material test piece acid and alkali resistance cycle detection device.

[0025] In the figure: 1, test box; 101, mounting groove; 2, box cover; 3, sample holder; 4, smearing frame; 401, U-shaped block; 402, support arm; 403, brush roller; 404, shunt pipe; 405, through hole; 406, accommodating groove; 5, driving workpiece; 6, liquid storage tank; 7, guide rod; 8, ejector rod; 9, spring; 10, water receiving box; 11, partition plate; 12, lead screw; 13, guide rail; 14, clamping block; 15, scraper; 16, observation window. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] Embodiment:

[0029] Reference Figures 1-5 A kind of building material test piece acid and alkali cycle detection device, including the test box 1 of internal environment closure and box cover 2, box cover 2 is installed in the opening end of test box 1 and is buckled, it is convenient for sample to be loaded and unloaded, test box 1 is integrated with cycle control system in, to control spraying period, monitor and adjust environmental condition, test box 1 is fixedly installed with sample holder 3 in, for fixing building material test piece to be measured, sample holder 3 can be adjusted according to different size and shape test piece, to adapt to multiple types of building materials, further include: smearing frame 4 in one side of sample holder 3, and driving workpiece 5 fixedly installed on test box 1, wherein, the movable end of driving workpiece 5 extends to test box 1 and is fixed with smearing frame 4, driving workpiece 5 drives smearing frame 4 to move along predetermined path by electric or pneumatic mode, preferably cylinder, with the advantage of quick response, make smearing frame 4 evenly smears acid and alkali solution to test piece surface, realize the automatic smearing of test piece surface;At least two independent liquid storage tanks 6, respectively store acidic and alkaline solution, and are connected to sample holder 3 by pipeline, liquid flow is driven by pump, ensure that the flow and pressure of solution are stable and controllable each time spraying.

[0030] It should be noted that the cycle control system includes a timing controller, a temperature and humidity sensor, and a pH monitor, and is connected to each component by existing technology to achieve the following functions:

[0031] 1. Timing controller: responsible for setting and managing various parameters of the coating cycle, such as coating time, cycle number, etc., to ensure that each test step is accurately executed according to the preset time interval;

[0032] 2. Temperature and humidity sensor: real-time monitoring of temperature and humidity conditions in the test box 1, and feeding back data to the cycle control system. If the detected environmental conditions deviate from the preset range, the system will automatically adjust to maintain the ideal test environment;

[0033] 3. pH value monitor: used to measure the pH value of the acid or alkaline solution applied to the test piece in real time, ensuring consistent solution concentration for each use. If the pH value is found to be abnormal, the system can pause the current operation and issue an alarm to remind the operator to check.

[0034] These sensors and controllers are connected to the central processing unit (CPU) in the cycle control system through existing communication interfaces and technologies (such as RS485, Modbus, CAN bus, etc.), ensuring real-time transmission and processing of all data. In addition, the system also supports remote monitoring and data recording, allowing users to monitor test progress and results at any time.

[0035] Place the test building material sample on the sample holder 3 and secure it with the corresponding fixing device. Select the appropriate acid or alkaline solution according to the test requirements and pour it into the corresponding liquid tank 6. Close the box cover 2, start the cycle control system, set the required spraying cycle parameters such as coating time, cycle number, etc., and adjust the test environment conditions through the temperature and humidity sensor and the pH value monitor. When the preset time point is reached, the pump extracts the corresponding solution from the liquid tank 6 and delivers it to the coating rack 4 through the pipeline. The workpiece 5 drives the coating rack 4 to move along the preset path. In this process, the coating rack 4 evenly applies the acid or alkaline solution to the surface of the test piece, eliminating the need for manual brushing of the acid or alkaline solution for building material detection and reducing the harm caused to workers by manual brushing.

[0036] The coating frame 4 is one of the key components in the acid and alkali cycle detection device of the building material test piece, which participates in the coating process of the solution. The coating frame 4 includes a U-shaped block 401 and a support arm 402 rotatably installed in the opening end of the U-shaped block 401. The end of the support arm 402 close to the test piece is rotatably installed with a brush roller 403. The support arm 402 is provided with two groups, which are used for coating acidic and alkaline solutions respectively, and can rotate freely within a certain range to adjust the angle and contact position of the brush roller 403 with the surface of the test piece. This flexibility enables uniform coating even for irregularly shaped test pieces. The support arm 402 is fixedly installed with a shunt pipe 404. The shunt pipe 404 is connected with the liquid storage tank 6 through a pipeline. The working surface of the shunt pipe 404 faces the brush roller 403, which is responsible for accurately distributing the acid and alkali solution from the liquid storage tank 6 to the brush roller 403, ensuring the stability and controllability of the flow and pressure of the solution during each coating.

[0037] The acid and alkali solution in the liquid storage tank 6 is delivered to the shunt pipe 404 through the pipeline, and then sprayed from the working surface of the shunt pipe 404 to the brush roller 403. Due to the rotating characteristics of the brush roller 403, it can uniformly coat the solution on the surface of the test piece. The driven workpiece 5 drives the support arm 402 and the brush roller 403 to move along the predetermined path. During the whole process, the brush roller 403 continuously contacts the surface of the test piece and coats the solution. In this way, the surface of the test piece is fully covered, improving the accuracy and repeatability of the test results.

[0038] In order to improve the accuracy and stability of the coating process, the sample holder 3 is fixedly installed with a guide rod 7, and the U-shaped block 401 is provided with a through hole 405 matched with the guide rod 7.

[0039] The guide rod 7 provides a stable track for the movement of the support arm 402, ensuring that the coating frame 4 does not deviate or shake during movement, thereby improving the accuracy of the coating. The guide rod 7 also enhances the overall structural stability of the sample holder 3, especially when handling larger or heavier test pieces, which can effectively prevent structural deformation caused by external forces.

[0040] It should be noted that the inner diameter of the through hole 405 is slightly larger than the outer diameter of the guide rod 7 to allow smooth sliding thereon while maintaining a certain friction force to avoid unnecessary shaking.

[0041] The U-shaped block 401 is internally provided with a receiving groove 406, and a top rod 8 is slidably installed in the receiving groove 406. One end of the top rod 8 abuts against the guide rod 7, and the other end of the top rod 8 is rotatably connected with the support arm 402, allowing the support arm 402 to have certain angle adjustment capability while maintaining good contact with the surface of the test piece. In particular, the diameter of the guide rod 7 increases smoothly from one end close to the driven workpiece 5 to the other end and then tends to be stable.

[0042] Due to the diameter change of the guide rod 7, the ejector rod 8 can automatically adjust its extension length during the sliding process according to the different positions of the guide rod 7, ensuring that the support arm 402 can be in close contact with the surface of the test piece throughout the stroke, maintaining a stable working state.

[0043] In order to enhance the function of the ejector rod 8 and provide additional flexibility and support, a spring 9 is movably installed on the ejector rod 8, and the two ends of the spring 9 are fixed with the inner bottom surface of the accommodating groove 406 and the support arm 402 respectively.

[0044] The presence of the spring 9 provides elastic support for the ejector rod 8, so that the ejector rod 8 can freely slide in the accommodating groove 406 while always maintaining a certain pressure contact with the guide rod 7, which helps to maintain the stability of the support arm 402 during the brushing process. Due to the elastic force of the spring 9, the ejector rod 8 can automatically return to the initial position after each movement, ensuring that the support arm 402 is always in the best working state. In addition, the spring 9 can be self-adapted according to different test piece shapes and sizes to ensure good contact between the brush roller 403 and the surface of the test piece, and uniform brushing can be achieved even on irregular surfaces.

[0045] In order to effectively collect the spilled solution and keep the inside of the test box 1 clean, an installation groove 101 is opened in the test box 1, which is through the inside of the test box 1. A water receiving box 10 is slidably installed in the installation groove 101 for collecting the spilled solution, preventing harmful substances from leaking into the external environment, and protecting the safety of the operator.

[0046] The water receiving box 10 is made of acid and alkali resistant material, has sufficient depth and width to accommodate the liquid that may be spilled, and can also be provided with scale marks on the water receiving box 10 to facilitate user monitoring of the liquid amount and timely cleaning.

[0047] In particular, a partition 11 is installed in the water receiving box 10 for separating different types of recycled liquids.

[0048] The U-shaped block 401 is elastically installed with a scraper 15 on the side close to the inner bottom surface of the test box 1, and the elastic member is preferably a compression spring. The scraper 15 is made of acid and alkali resistant material and has a certain flexibility, which can closely adhere to the inner bottom surface of the test box 1 and effectively remove excess solution. The length and width of the scraper 15 should be optimized according to the actual test requirements to ensure that all areas that may produce overflow are covered.

[0049] In order to enhance the function of the sample rack 3, and provide more reliable test piece fixing way, the sample rack 3 is provided with a lead screw 12 and a guide rail 13, the lead screw 12 and the guide rail 13 are respectively rotatably installed on both sides of the sample rack 3, the lead screw 12 is driven by hand or motor, and the clamping block 14 is installed on the lead screw 12 and the guide rail 13, the clamping block 14 is symmetrically arranged, the guide rail 13 is arranged parallel to the lead screw 12, and is used for guiding the clamping block 14 to smoothly slide along the predetermined path, the clamping block 14 is driven to move close to or away from each other by the lead screw 12, and is used for clamping the building material test piece to be tested, the surface of the clamping block 14 can be selected with different friction materials according to the material of the test piece, so as to ensure good gripping force without damaging the surface of the test piece.

[0050] The test box 1 is provided with observation windows 16 made of high-strength transparent material on both sides, which allows monitoring the experiment process without opening the box cover 2, so that the operator can clearly see the experiment progress inside the test box 1 from the outside, including the brushing action of the brush roller 403, the state change of the test piece, etc., which helps to find any abnormal situation in time and take necessary measures.

[0051] The connection between the observation window 16 and the test box 1 adopts a waterproof and dustproof sealing strip or rubber pad, which ensures good sealing effect even in harsh environment.

[0052] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for testing the acid and alkali resistance of building material specimens under cyclic conditions, comprising a test chamber (1) and a cover (2), wherein the cover (2) is fastened to the open end of the test chamber (1), and the test chamber (1) integrates a cyclic control system for controlling the spraying cycle and monitoring and adjusting environmental conditions, characterized in that, The test chamber (1) is equipped with a sample rack (3) for fixing the building material specimen to be tested, and also includes: The smear holder (4) located on one side of the sample holder (3), and The drive workpiece (5) is fixedly installed on the test chamber (1). The movable end of the driving workpiece (5) extends into the test box (1) and is fixed to the coating rack (4), so that the coating rack (4) can evenly coat the surface of the test piece with acid and alkali solutions. At least two independent storage tanks (6) are used to store acidic and alkaline solutions respectively, and are connected to the sample rack (3) through pipes, with the liquid flow driven by a pump.

2. The acid and alkali resistance cycling test device for building material specimens according to claim 1, characterized in that, The sample holder (3) includes a U-shaped block (401), and A support arm (402) is rotatably mounted inside the open end of the U-shaped block (401), and a brush roller (403) is rotatably mounted on one end of the support arm (402) near the specimen. The support arm (402) is fixedly installed with a diversion pipe (404), which is connected to the liquid storage tank (6) through a pipe, and the working surface of the diversion pipe (404) faces the brush roller (403).

3. The acid and alkali resistance cycling test device for building material specimens according to claim 2, characterized in that, A guide rod (7) is fixedly installed on the sample holder (3), and the U-shaped block (401) has a through hole (405) that matches the guide rod (7).

4. The acid and alkali resistance cycling test device for building material specimens according to claim 3, characterized in that, The U-shaped block (401) has a receiving groove (406) inside, and a push rod (8) is slidably installed in the receiving groove (406). One end of the push rod (8) abuts against the guide rod (7), and the other end of the push rod (8) is rotatably connected to the support arm (402). The diameter of the guide rod (7) gradually increases from one end near the driving workpiece (5) to the other end and then tends to stabilize.

5. The acid and alkali resistance cycling test device for building material specimens according to claim 4, characterized in that, A spring (9) is movably mounted on the top rod (8), and the two ends of the spring (9) are fixed to the bottom surface of the receiving groove (406) and the support arm (402), respectively.

6. The acid and alkali resistance cycling test device for building material specimens according to claim 5, characterized in that, The test chamber (1) has an installation groove (101) inside, which is in communication with the interior of the test chamber (1). A water collection box (10) is slidably installed in the installation groove (101) to collect the overflowing solution.

7. The acid and alkali resistance cycling test device for building material specimens according to claim 6, characterized in that, The water receiving box (10) is equipped with a partition (11) for separating different types of recycled liquids.

8. The acid and alkali resistance cycling test device for building material specimens according to claim 7, characterized in that, A scraper (15) is elastically installed on the side of the U-shaped block (401) near the bottom of the test chamber (1).

9. The acid and alkali resistance cycling test device for building material specimens according to claim 1, characterized in that, The sample holder (3) is equipped with a lead screw (12) and a guide rail (13), and Clamping blocks (14) are mounted together on the lead screw (12) and the guide rail (13). The clamping blocks (14) are symmetrically arranged and move closer or further apart from each other by the drive of the lead screw (12) to clamp the building material specimen to be tested.

10. The acid and alkali resistance cycling test device for building material specimens according to claim 1, characterized in that, The test chamber (1) is equipped with observation windows (16) made of high-strength transparent material on both sides, which allows the experimental process to be monitored without opening the chamber cover (2).

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