Accurate detection equipment for content of chloride ions in concrete

Abstract

The invention relates to the technical field of concrete detection equipment, and discloses accurate detection equipment for the content of chloride ions in concrete, the accurate detection equipment comprises a detector body and a detection mechanism, the detection mechanism is arranged at the top of the detector body, and the detection mechanism comprises a pretreatment assembly and a height adjusting assembly; the height adjusting assembly comprises a guide rod and a screw rod, the bottom of the guide rod is fixedly connected to the top of the detector body, the bottom of the screw rod is rotatably connected to the top of the detector body, a handle is fixedly connected to the top of the screw rod, and a movable plate is in threaded connection to the outer side of the screw rod; the inner side of the movable plate is in sliding connection with the outer side of the guide rod, and a detection head is installed at a through hole in the inner side of the movable plate. The device is high in integration level, all operation steps are coherent and smooth, excessive manual intervention is not needed, the manual labor amount is greatly reduced, the detection efficiency is remarkably improved, and an efficient and accurate solution is provided for concrete chloride ion content detection work.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete testing equipment, in particular to a precise testing equipment for chloride ion content in concrete. Background Art

[0002] In the field of construction engineering, concrete is a key material, and its quality is directly related to the safety and durability of the project. Chloride ions are an important factor inducing steel corrosion. Once the chloride ion content in concrete exceeds the standard, the chloride ions will migrate to the surface of the steel bars through the concrete pores, destroy the passivation film around the steel bars, and cause the steel bars to rust. The oxides produced by rust expand in volume, generating huge internal stress inside the concrete, causing the concrete surface to crack and peel off, and even lead to structural failure in severe cases. Therefore, relevant Chinese regulations strictly require that when selecting concrete raw materials, such as sand, aggregates, cement, admixtures, etc., the chloride ion content must be tested to prevent excessive chloride ions from entering the concrete from the source. At the same time, the test of chloride ion content in structural concrete is also of great reference value for evaluating structural safety and guiding the renovation and repair of old structures. In the prior art, there are various devices for detecting chloride ion content in concrete. Common ones include chloride ion content testers using ion selective electrode method, which are equipped with professional software and chemical anti-interference reagents to measure the water-soluble chloride ion content of inorganic materials such as concrete at room temperature. Some equipment uses a combination of potentiometers, chloride ion selective electrodes, salt bridges, calomel electrodes, etc. to detect the chloride ion content in concrete mixtures. The structural principles of these devices are based on the characteristics of ions in solution, and the chloride ion content is indirectly calculated by detecting parameters such as potential changes related to chloride ions in the solution. For example, the chloride ion selective electrode has a selective response to chloride ions in the solution. It is inserted into the solution to be tested and forms a potential difference with the reference electrode. The potential difference is linearly related to the logarithm of the chloride ion activity in the solution, and then the chloride ion content is calculated according to the Nernst equation. However, existing equipment has many problems in actual use scenarios. The operating procedures of existing equipment are often cumbersome. From the preliminary processing of samples to the acquisition of final test results, operators are required to perform a large number of complex operations, which not only consumes manpower, but also easily introduces errors due to improper human operation, reducing detection efficiency and accuracy. In addition, many detection equipment have poor portability. For construction sites with wide distribution and diverse environments, it is difficult to flexibly move to different areas for detection, which limits its scope of application. Therefore, the present invention provides a precise detection device for the chloride ion content of concrete to solve the shortcomings of the prior art. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a precise detection device for the chloride ion content of concrete, which solves the problem that the precise detection device for the chloride ion content of concrete in the prior art is cumbersome to operate and requires excessive manual labor.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a precise detection device for chloride ion content in concrete, comprising a detector body and a detection mechanism, the detection mechanism is arranged on the top of the detector body, the detection mechanism comprises a pretreatment component and a height adjustment component, the height adjustment component comprises a guide rod and a screw rod, the bottom of the guide rod is fixedly connected to the top of the detector body, the bottom of the screw rod is rotatably connected to the top of the detector body, the top of the screw rod is fixedly connected to a handle, the outer side of the screw rod is threadedly connected to a movable plate, the inner side of the movable plate is slidably connected to the outer side of the guide rod, a detection head is installed at the inner through hole of the movable plate, one end of the detection head is electrically connected to the detector body through an electric wire, a portable mechanism is arranged on the outer side of the detector body, the pretreatment component comprises a support column and a mixing tank, the bottom of the support column is fixedly connected to the top of the detector body, and the bottom of the mixing tank is fixedly connected to the top of the support column The top of the stirring tank is equipped with a motor 1, and the output end of the motor 1 is fixedly connected to a rotating rod, and the outer periphery of the rotating rod is fixedly connected to a plurality of stirring rods, the outer side of the support column is rotatably connected to a rotating disk, and a connecting hole is opened inside the rotating disk, the outer side of the support column is detachably connected to a hose, and the top of the hose is provided with a filter screen, and the portable mechanism comprises two groups of mounting cylinders, each group of the mounting cylinders has two, and each group of the mounting cylinders is rotatably connected to the outer sides of the detector body respectively, the interior of the mounting cylinder is slidably connected to an L-shaped plate, the proximal ends of the two mounting cylinders are fixedly connected to a circular ring, both sides of the outer side of the detector body are fixedly connected to a limiting block, the outer side of the circular ring is in contact with the top of the limiting block, and the outer side of the detector body is fixedly connected to two L-shaped brackets, and a grip rod is placed on the inner side of the two L-shaped brackets, and sliding columns are slidably connected at both ends of the grip rod, and one end of the sliding column is connected to the inner side of the grip rod through a spring.

[0005] Preferably, a second motor is installed inside the detector body, a second magnetic strip is fixedly connected to the output end of the second motor, and a placement slot is provided on the top of the detector body.

[0006] Preferably, a beaker is arranged on the inner side of the placement groove, and magnetic stripe 1 is placed inside the beaker, and magnetic stripe 1 is located above magnetic stripe 2.

[0007] The present invention provides a precise detection device for chloride ion content in concrete. It has the following beneficial effects: 1. The present invention screens the sample, uses a stirring device to fully dissolve the chloride ions, and then obtains a pure test solution through filtration. The detection head accurately senses the potential change. Each link is closely linked to effectively eliminate interference factors to ensure that the test results are accurate and reliable. At the same time, the equipment is highly integrated, and each operation step is coherent and smooth. There is no need for excessive manual intervention, which greatly reduces the amount of manual labor and significantly improves the detection efficiency, providing an efficient and accurate solution for the detection of chloride ion content in concrete.

[0008] 2. The present invention uses an adjustable ring and a grip rod to make the device easy to carry and convenient to move and use flexibly in different construction sites. Compared with large-scale detection equipment, it greatly improves the convenience of use. In addition, it also highly integrates sample pretreatment and detection functions, avoids frequent transfer of samples and operations between different devices, solves the problem of scattered functions of portable small devices, ensures the continuity of the detection process, and brings great convenience to actual detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the grip structure of the present invention; Figure 3 It is a schematic diagram of the structure of the stirring tank of the present invention; Figure 4 It is a schematic diagram of the movable plate structure of the present invention; Figure 5 It is a schematic diagram of the expansion state of the present invention.

[0010] Among them, 1. detector body; 2. support column; 3. stirring tank; 4. motor 1; 5. rotating rod; 6. stirring rod; 7. turntable; 8. connecting hole; 9. hose; 10. beaker; 11. placement slot; 12. magnetic strip 1; 13. motor 2; 14. magnetic strip 2; 15. guide rod; 16. screw rod; 17. handle; 18. movable plate; 19. detection head; 20. installation tube; 21. L-shaped plate; 22. ring; 23. limit block; 24. L-shaped bracket; 25. grip rod; 26. sliding column. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] Please see attached Figure 1 -Attached Figure 5The embodiment of the present invention provides a precise detection device for chloride ion content in concrete, including a detector body 1 and a detection mechanism, the detection mechanism is arranged on the top of the detector body 1, the detector body 1 is the core control and display part of the whole detection device, and its interior integrates a circuit system for processing detection data, a power module and a related control chip, and a display screen is arranged on its outer side for displaying data such as the potential value in the detection process and the calculated chloride ion content, and at the same time, it also has operation buttons, which are convenient for operators to start, stop, calibrate and other operations on the equipment, in addition, the detector body 1 provides an installation basis for other components, and the guide rod 15, the screw rod 16, the support column 2 and the like are all installed on the top thereof, the detection mechanism includes a pretreatment component and a height adjustment component, and the height adjustment component includes a guide rod 15 and a screw rod 16, the bottom of the guide rod 15 is fixedly connected to the top of the detector body 1, and provides a guiding effect for the sliding of the movable plate 18, and the surface of the guide rod 15 is smooth, which can reduce the friction when the movable plate 18 slides, and ensure that the movable plate 18 can move up and down smoothly. The bottom of the screw rod 16 is rotatably connected to the top of the detector body 1, and a handle 17 is fixedly connected to the top. The screw rod 16 is connected to the movable plate 18 through a thread. When the handle 17 is turned, the screw rod 16 rotates, driving the movable plate 18 to move up and down along the guide rod 15, thereby adjusting the height of the detection head 19. The handle 17 is convenient for the operator to rotate the screw rod 16. Its shape and size conform to the ergonomic design, which is easy to hold and apply force. The inner side of the movable plate 18 is slidably connected to the outer side of the guide rod 15, and is threadedly connected to the screw rod 16 at the same time.The movable plate 18 serves to install the detection head 19, which is moved up and down by rotating the screw rod 16, thereby adjusting the height of the detection head 19 so that it can be inserted into the solution in the beaker 10 for detection. The detection head 19 is installed at the inner through hole of the movable plate 18, and one end of the detection head 19 is electrically connected to the detector body 1 through an electric wire. The detection head 19 can sense the potential change in the solution and transmit the signal to the detector body 1 for processing and analysis, and finally obtain the detection result of the chloride ion content; the pretreatment component includes a support column 2 and a stirring tank 3. The support column 2 serves to support the stirring tank 3 to ensure that the stirring tank 3 is stably installed above the detector body 1. Its height is based on The size of the stirring tank 3 is designed according to the actual operation requirements to ensure that the solution in the stirring tank 3 can smoothly flow into the beaker 10 through the hose 9. The stirring tank 3 is a container for pre-treating the concrete sample. Its material is usually corrosion-resistant plastic or glass to prevent corrosion by the leaching solution. A motor 4 is installed on its top. The power of the motor 4 is selected according to the stirring requirements. It can provide sufficient power to drive the rotating rod 5 and the stirring rod 6 to fully stir the mixture of the concrete sample and the leaching solution. The motor 4 is the power source for driving the stirring device. Its output shaft is fixedly connected to the rotating rod 5. The rotating rod 5 is driven to rotate by converting electrical energy into mechanical energy. The speed of the motor 4 can be adjusted by The controller is adjusted to meet the stirring requirements of different samples. The rotating rod 5 is an intermediate component connecting the motor 4 and the stirring rod 6. It transmits the rotational power of the motor 4 to the stirring rod 6. The length and diameter of the rotating rod 5 are designed according to the size of the stirring tank 3 and the stirring effect to ensure that the stirring rod 6 can fully stir the solution. The stirring rod 6 is fixed on the outer periphery of the rotating rod 5. The plurality of stirring rods 6 rotate under the drive of the rotating rod 5 to stir the concrete sample and the leachate in the stirring tank 3 so that the chloride ions in the concrete are fully dissolved into the solution. The shape and number of the stirring rods 6 will affect the stirring effect. Usually, a spiral or straight shape is adopted, and the number is determined according to the size of the stirring tank 3 and the stirring requirements. The outer side of the support column 2 is rotatably connected to a turntable 7, and a connecting hole 8 is provided inside the turntable 7. The turntable 7 can be rotated manually or electrically. When the turntable 7 is rotated to a suitable position, the connecting hole 8 can be connected to the through hole at the bottom of the stirring tank 3 and the hose 9, so that the solution in the stirring tank 3 can flow into the hose 9. The connecting hole 8 is a channel for the solution to flow from the stirring tank 3 into the hose 9. The diameter of the connecting hole 8 is designed according to the flow rate and flow velocity of the solution to ensure that the solution can pass smoothly. The outer side of the support column 2 is detachably connected to the hose 9, and a filter net is provided on the top of the hose 9. The material of the hose 9 is usually soft, corrosion-resistant rubber or plastic, which is convenient for the flow and installation and disassembly of the solution.The function of the filter is to filter out impurities in the solution, ensure that the solution flowing into the beaker 10 is pure, and avoid the influence of impurities on the test results. A motor 2 13 is installed inside the detector body 1, and a magnetic strip 2 14 is fixedly connected to the output end of the motor 2 13. A placement slot 11 is provided on the top of the detector body 1, and a beaker 10 is arranged on the inner side of the placement slot 11. A magnetic strip 12 is placed inside the beaker 10, and the magnetic strip 12 is located above the magnetic strip 2 14. The beaker 10 is placed in the placement slot 11 and is used to hold the pre-treated test solution. The material of the beaker 10 is usually glass, which has good transparency and is convenient for observing the state of the solution. Its capacity is selected according to the detection requirements and can generally accommodate enough The solution to be tested is tested, the placement slot 11 is opened on the top of the detector body 1, and its shape and size match the beaker 10, which can stably place the beaker 10 to prevent the beaker 10 from shaking or tipping over during the detection process. The magnetic strip 12 is placed inside the beaker 10 and used in conjunction with the magnetic strip 2 14. When the magnetic strip 2 14 rotates, the magnetic strip 12 is driven to rotate in the beaker 10 through the action of the magnetic field, thereby stirring the solution in the beaker 10 to make the chloride ions evenly distributed. The motor 2 13 is installed inside the detector body 1, and the output end thereof is fixedly connected with the magnetic strip 2 14. The motor 2 13 provides power for the rotation of the magnetic strip 2 14. By adjusting the rotation speed of the motor 2 13, the stirring speed of the magnetic strip 12 can be controlled. The magnetic strip 14 is fixed to the output end of the motor 13, and rotates with the rotation of the motor 13, and uses the magnetic field to drive the magnetic strip 12 to rotate, so as to stir the solution in the beaker 10; a portable mechanism is arranged on the outside of the detector body 1, and the portable mechanism includes two groups of mounting tubes 20, each group of mounting tubes 20 has two, and each group of mounting tubes 20 is rotatably connected to the two sides of the outside of the detector body 1, and the mounting tubes 20 provide a sliding space for the L-shaped plate 21, and can rotate around the connection point with the detector body 1, so as to facilitate the position adjustment, and the inside of the mounting tube 20 is slidably connected with the L-shaped plate 21, and its shape design enables it to slide in the mounting tube 20, and can cooperate with the ring 22 when necessary. The two mounting tubes 20 are fixedly connected at their proximal ends to fix the gripping rod 25. The limiting blocks 23 are fixedly connected to both sides of the exterior of the detector body 1. The outer side of the ring 22 contacts the top of the limiting block 23. The ring 22 is fixedly connected to the proximal ends of the two mounting tubes 20. The outer diameter of the ring 22 is larger than the inner diameter of the limiting block 23. When the ring 22 is pushed upward and rotated to the highest point, it can be stuck on the top of the limiting block 23 to fix the position. At the same time, the ring 22 provides a fixed position for both ends of the gripping rod 25. The limiting blocks 23 are fixedly connected to both sides of the exterior of the detector body 1 to limit the position of the ring 22 and ensure that the ring 22 is in a suitable position to cooperate with the gripping rod 25.Two L-shaped brackets 24 are fixedly connected to the outside of the detector body 1, and a grip 25 is placed inside the two L-shaped brackets 24. Sliding columns 26 are slidably connected at both ends of the grip 25, and one end of the sliding column 26 is connected to the inner side of the grip 25 through a spring. The L-shaped bracket 24 is fixedly connected to the outside of the detector body 1, providing a placement position for the grip 25 so that it can be stably placed on the detector body 1 when not in use. The grip 25 is placed on the inner side of the two L-shaped brackets 24, and sliding columns 26 are slidably connected at both ends. The design of the grip 25 conforms to ergonomics, which is convenient for operators to hold and is used to lift the entire detection device. One end of the sliding column 26 is connected to the inner side of the grip 25 through a spring. When the sliding column 26 is pressed, the spring is compressed and the sliding column 26 shrinks. After releasing, the spring returns to its original state, and the sliding column 26 pops out. The sliding column 26 can be stuck into the inner side of the ring 22 to achieve a fixed connection between the grip 25 and the ring 22.

[0013] Specifically, first, the muddy concrete is sampled and crushed, ground, and sieved. Crushing can decompose large pieces of concrete samples into smaller particles, greatly increasing their specific surface area, creating conditions for subsequent full contact with the leaching solution; grinding further refines the particles, making it easier for the chloride ions inside the concrete to be exposed; sieving can ensure that the sample particles are uniform in size, ensuring the representativeness and stability of subsequent detection. After these preliminary treatments, the concrete sample can react with the leaching solution more efficiently in the subsequent steps. Then, a certain amount of sample is weighed and placed in the mixing tank 3, and a certain volume of deionized water or a specific leaching solution is added. The addition of deionized water or a specific leaching solution is to construct a liquid phase environment that can fully dissolve the chloride ions in the concrete. In such a solution system, the chloride ions can detach from the surface of the concrete particles and diffuse into the solution, thereby realizing the transfer from the solid phase to the liquid phase, providing a solution containing chloride ions for subsequent detection, and then starting the motor 4 to drive the rotating rod 5 to drive the multiple stirring rods 6 to rotate. When the motor 4 is running, the powerful power is transmitted to the multiple stirring rods 6 through the rotating rod 5. The stirring rods 6 rotate at a high speed in the stirring tank 3 to form a strong stirring flow field, which makes the concrete sample and the leaching solution fully mixed in the stirring tank 3, and the material distribution in the solution is more uniform, which speeds up the dissolution rate of chloride ions from concrete particles into the solution, greatly shortens the time required for dissolution, and ensures that the chloride ions in the concrete are completely dissolved in the solution, improves the dissolution effect, and provides a sufficient source of chloride ions for subsequent accurate detection. After the chloride ions in the concrete are fully dissolved in the solution, it is then left to stand for a period of time. During the standing process, the suspended impurities in the solution gradually settle to the bottom of the stirring tank 3 under the action of gravity. The part, while the solution containing chloride ions is relatively clear and located in the upper layer. This step effectively realizes the preliminary separation of the solution and impurities, laying the foundation for the subsequent acquisition of pure test solution. Then, the turntable 7 is rotated to make the connecting hole 8 communicate with the bottom through hole of the stirring tank 3 and the hose 9. When the turntable 7 is rotated to a specific position, the connecting hole 8 serves as a key channel to connect the bottom of the stirring tank 3 with the hose 9. Under the action of gravity, the upper clear solution can flow smoothly into the hose 9 and be filtered by the filter at the top of the hose 9. The filter can effectively intercept the tiny particle impurities remaining in the solution, ensuring that the solution entering the beaker 10 is pure and free of impurities, avoiding impurities from interfering with the subsequent detection process and affecting the accuracy of the detection results. Finally, the test solution flows into the beaker 10, and the detector body 1 is started in advance for preheating.The detector body 1 contains many precise electronic components and detection modules. The preheating process can make these components reach a stable working temperature, eliminate the measurement error caused by temperature change, and ensure that the detection instrument can output stable and reliable detection signals in subsequent work, providing the necessary hardware conditions for accurate detection. Then, the handle 17 is turned to insert the bottom end of the detection head 19 into the solution. When the handle 17 is turned, the screw rod 16 rotates accordingly. Since the screw rod 16 is connected to the movable plate 18 by a thread, and the movable plate 18 is constrained by the guide rod 15 and can only slide in the vertical direction, the movable plate 18 can be moved in the vertical direction. The moving plate 18 drives the detection head 19 to descend steadily until the bottom end of the detection head 19 is accurately inserted into the solution to be tested in the beaker 10, so as to prepare for the potential change in the detection solution. At this time, the motor 2 13 is started to drive the magnetic strip 2 14 to rotate, and the magnetic strip 2 14 will drive the magnetic strip 1 12 to rotate inside the beaker 10. The operation of the motor 2 13 drives the magnetic strip 2 14 to rotate at a high speed, and the interaction of the magnetic field is used to make the magnetic strip 1 12 located in the beaker 10 rotate accordingly. The rotation of the magnetic strip 12 forms a local stirring effect in the solution in the beaker 10, which promotes the further uniform distribution of the chloride ions in the solution. The detection head 19 is evenly distributed to avoid concentration gradients, and ensures that the chloride ion concentration in the solution contacted by the detection head 19 is consistent when detecting at different positions, thereby ensuring that the measurement results can truly reflect the chloride ion content of the entire solution, significantly improving the accuracy and reliability of the measurement results. Finally, the potential value on the screen of the detector body 1 is recorded to calculate and obtain the final data. The detection head 19 senses the potential change in the solution and transmits this signal to the detector body 1. After the detector body 1 performs a series of complex processing and analysis on the signal, the corresponding point value is displayed on the screen. The operator substitutes the point value into it according to the professional calculation formula. After rigorous mathematical calculations, the chloride ion content in the concrete is finally obtained. The entire equipment has a high degree of integration. From sample pretreatment to the acquisition of the final test results, multiple operation steps are closely connected, coherent and smooth, and each component works together. The operator does not need to perform too many tedious intermediate operations, which greatly reduces the amount of manual labor and reduces the interference of human factors on the test results, ensuring the efficiency of the test process and the accuracy of the test results; in addition, the ring 22 can be pushed upward, and then the mounting cylinder 20 is rotated so that the ring 22 is at the highest point. When the circular ring 22 is pushed upward, the L-shaped plate 21 slides upward in the mounting tube 20. When the mounting tube 20 is rotated to make the circular ring 22 reach the highest point, the position of the circular ring 22 is limited by the limit block 23. At this time, the circular ring 22 is in the best position for cooperation with the handle 25. Then the handle 25 is moved to the middle position between the two circular rings 22, and the sliding column 26 is pressed to shrink it.After the grip 25 is moved into place, the sliding column 26 is pressed, and the spring at one end of the sliding column 26 is compressed and contracted, and the sliding column 26 is retracted toward the inside of the grip 25. After being released, the sliding column 26 can be stuck into the inner side of the ring 22, so that the entire device can be easily lifted. After releasing the sliding column 26, the spring returns to its original state, pushing the sliding column 26 to pop out, so that it is accurately stuck into the inner side of the ring 22. At this time, the grip 25 and the equipment are firmly connected through the ring 22. The operator can easily lift the entire detection equipment by holding the grip 25. Compared with large-scale detection equipment, the device is small in size and compact in structure. Through this ingenious portable mechanism design, the portability of the device is significantly improved, and it is convenient to move and use flexibly at different construction sites; compared with portable small-scale detection equipment, it integrates complete sample pretreatment and detection functions, and each operation step is coherent and orderly. There is no need for operators to frequently transfer samples and operations between different devices, which greatly improves the efficiency and consistency of the detection work.

[0014] Working principle: First, the muddy concrete is sampled and crushed, ground, and sieved, and then a certain amount of sample is weighed and put into the mixing tank 3, and a certain volume of deionized water or a specific leaching solution is added, and then the motor 1 4 is started to drive the rotating rod 5 to drive multiple stirring rods 6 to rotate, so that the chloride ions in the concrete are fully dissolved into the solution, and then after standing for a period of time, the turntable 7 is rotated to make the connecting hole 8 connected with the bottom through hole of the mixing tank 3 and the hose 9, and filtered by the filter screen at the top of the hose 9, and the solution to be tested flows into the beaker 10, and the detector body 1 is started in advance for preheating, and then the handle 17 is turned to insert the bottom end of the detection head 19 into the solution, and then the motor 2 13 is started to drive the magnetic strip 2 14 to rotate, and the magnetic strip 2 14 will The magnetic strip 12 is driven to rotate inside the beaker 10, so that the chloride ions in the beaker 10 are evenly distributed, ensuring the accuracy of the measurement results. Finally, the point values ​​on the screen of the detector body 1 are recorded to calculate the final data. The entire device has a high degree of integration, multiple operation steps are connected, and the manual labor is greatly reduced. In addition, the ring 22 can be pushed upward, and then the installation cylinder 20 can be rotated to make the ring 22 at the highest point, and then the grip 25 can be moved to the middle position of the two rings 22, and the sliding column 26 can be pressed to shrink it. After releasing it, the sliding column 26 can be stuck into the inner side of the ring 22, so that the entire device can be easily lifted. It has better convenience than large-scale detection equipment and higher step continuity than portable small-scale detection equipment.

[0015] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise detection device for chloride ion content in concrete, comprising a detector body (1) and a detection mechanism, characterized in that: The detection mechanism is arranged at the top of the detector body (1), and comprises a pretreatment component and a height adjustment component. The height adjustment component comprises a guide rod (15) and a screw rod (16). The bottom of the guide rod (15) is fixedly connected to the top of the detector body (1), the bottom of the screw rod (16) is rotatably connected to the top of the detector body (1), the top of the screw rod (16) is fixedly connected to a handle (17), the outer side of the screw rod (16) is threadedly connected to a movable plate (18), and the inner side of the movable plate (18) is slidably connected to the outer side of the guide rod (15). A detection head (19) is installed at the inner through hole of the movable plate (18), one end of the detection head (19) is electrically connected to the detector body (1) through an electric wire, a portable mechanism is arranged on the outer side of the detector body (1), the pretreatment component comprises a support column (2) and a stirring tank (3), the bottom of the support column (2) is fixedly connected to the top of the detector body (1), the bottom of the stirring tank (3) is fixedly connected to the top of the support column (2), a motor 1 (4) is installed on the top of the stirring tank (3), and the output end of the motor 1 (4) is fixedly connected to a rotating rod ( 5), a plurality of stirring rods (6) are fixedly connected to the outer periphery of the rotating rod (5), a rotating disk (7) is rotatably connected to the outer side of the supporting column (2), a connecting hole (8) is provided inside the rotating disk (7), a hose (9) is detachably connected to the outer side of the supporting column (2), a filter screen is provided at the top of the hose (9), the portable mechanism comprises two groups of mounting tubes (20), each group of the mounting tubes (20) has two, and each group of the mounting tubes (20) is rotatably connected to the outer sides of the detector body (1), and the interior of the mounting tubes (20) is slidably connected to an L-shaped The plate (21) is provided with a circular ring (22) at the adjacent ends of the two mounting cylinders (20). The outer sides of the detector body (1) are fixedly connected with limit blocks (23). The outer side of the circular ring (22) contacts the top of the limit block (23). The outer side of the detector body (1) is fixedly connected with two L-shaped brackets (24). The inner sides of the two L-shaped brackets (24) are provided with gripping rods (25). The two ends of the gripping rod (25) are slidably connected with sliding columns (26). One end of the sliding column (26) is connected to the inner side of the gripping rod (25) through a spring.

2. The precise detection device for chloride ion content in concrete according to claim 1, characterized in that: A second motor (13) is installed inside the detector body (1), and a second magnetic strip (14) is fixedly connected to the output end of the second motor (13). A placement slot (11) is provided on the top of the detector body (1).

3. The precise detection device for chloride ion content in concrete according to claim 2, characterized in that: A beaker (10) is arranged on the inner side of the placement groove (11), and a magnetic stripe 1 (12) is placed inside the beaker (10), wherein the magnetic stripe 1 (12) is located above the magnetic stripe 2 (14).

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