A durability detection system for bridge concrete structures

Abstract

The present invention discloses a durability detection system for a bridge concrete structure, belonging to the technical field of detection equipment. The system includes a detection platform. Inside the detection platform, an acid pickling chamber, an immersion chamber, a spraying chamber, an electrolysis chamber, a heating chamber, and a weathering chamber are sequentially arranged from left to right. A spraying module is fixedly installed inside the spraying chamber, an electrolysis element is fixedly installed inside the electrolysis chamber, two symmetrically arranged heating elements are fixedly installed inside the heating chamber, and a weathering component is fixedly installed inside the weathering chamber. The beneficial effects of the present invention are as follows: Through the settings of structures such as the detection module, the acid pickling chamber, the immersion chamber, the spraying chamber, the electrolysis chamber, the heating chamber, and the weathering chamber, the device can efficiently complete the durability detection operation of bridge concrete specimens. Moreover, when the device is performing the detection operation, it can truly simulate the acid soaking, water immersion, spraying, electrolytic corrosion, heating, and weathering environments in which the bridge concrete is located.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection equipment, and particularly relates to a durability detection system for bridge concrete structures. Background Art

[0002] Bridge concrete structures are often faced with a harsh marine environment. Due to insufficient durability, accidents of premature failure and shortened lifespan of concrete structures are increasing continuously. In particular, accidents of many major projects and high-rise buildings failing before reaching the design life occur frequently, causing huge economic losses and casualties. There is currently no relevant device that can detect them before use. Therefore, there is a need for a device for durability testing of concrete specimens at present to provide scientific data for bridge construction and bridge maintenance. Based on this, the present invention provides a durability detection system for bridge concrete structures to solve the problems raised in the above background art. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a durability detection system for bridge concrete structures to solve the problem that there is a lack of a detection system for the lock position durability test of concrete specimens in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A durability detection system for bridge concrete structures includes a detection table. Inside the detection table, there are sequentially arranged a pickling chamber, a soaking chamber, a spraying chamber, an electrolysis chamber, a heating chamber, and a weathering chamber from left to right. A spraying module is fixedly installed inside the spraying chamber, an electrolysis element is fixedly installed inside the electrolysis chamber, two symmetrically arranged heating elements are fixedly installed inside the heating chamber, a weathering component is fixedly installed inside the weathering chamber. A guiding frame is fixedly installed inside the detection table, a detection module is slidably connected inside the guiding frame, an axial screw rod driving module is fixedly installed inside the guiding frame, and the circumferential surface of the axial screw rod driving module is in transmission connection with the detection module. The detection module includes a moving frame, the circumferential surface of the moving frame is slidably connected with the guiding frame, a radial screw rod driving module is fixedly installed inside the moving frame, a lifting frame is slidably connected to the inner wall of the moving frame, and the circumferential surface of the radial screw rod driving module is in transmission connection with the lifting frame. A pressing frame is fixedly installed on the end face of the moving frame, a group of vertically arranged pressing push rods are fixedly installed inside the pressing frame, a pressing table is fixedly installed at the bottom of the group of pressing push rods, a detection plate is arranged below the pressing table, and a group of regularly distributed pressure sensors are installed between the relative surfaces of the detection plate and the pressing table. A clamping module is fixedly installed at the bottom of the lifting frame.

[0006] Further, the clamping module respectively includes a rotating shaft and a rotating motor. The circumferential side surface of the rotating shaft is rotatably connected to the lifting frame. One surface of the rotating motor is fixedly connected to the lifting frame. The output shaft end of the rotating motor is drivingly connected to the rotating shaft through a belt. A positioning seat is fixedly installed on the end surface of the rotating shaft. A supporting clamp is fixedly installed on the bottom surface of the positioning seat. A double-headed telescopic tube is installed on the inner wall of the positioning seat. Clamps are fixedly installed at both ends of the double-headed telescopic tube. The two clamps are symmetrically arranged.

[0007] Further, both the radial lead screw driving module and the axial lead screw driving module include a driving motor and a transmission lead screw. The output shaft end of the driving motor is fixedly connected to the transmission lead screw. The axis of the transmission lead screw at the radial lead screw driving module is perpendicular to the axis of the transmission lead screw at the axial lead screw driving module. The axis of the transmission lead screw at the axial lead screw driving module is parallel to the horizontal line.

[0008] Further, the spraying module respectively includes two symmetrically arranged spraying seats installed inside the spraying cabin and a circulating pump fixed to the back of the inspection table. A group of high-pressure spray holes arranged in a linear array are formed on the surfaces of the two spraying seats. One end of the liquid inlet of the circulating pump is fixedly communicated with the spraying cabin. One end of the liquid outlet of the circulating pump is fixedly communicated with the two spraying seats through pipelines respectively.

[0009] Further, the electrolysis element respectively includes a positive electrode, a negative electrode and a power adapter. The positive electrode and the negative electrode are symmetrically installed inside the electrolysis cabin. The ports of the positive electrode and the negative electrode are electrically connected to the power adapter. A group of equally spaced discharge terminals are installed on the surfaces of the positive electrode and the negative electrode.

[0010] Further, the weathering component respectively includes a high-pressure blower and two air distribution seats installed inside the weathering cabin. One surface of the two air distribution seats is fixedly connected to the weathering cabin. A group of equally spaced air distribution spray holes arranged in a linear array are formed on the surfaces of the two air distribution seats. One surface of the high-pressure blower is fixedly connected to the inspection table. One end of the air outlet of the high-pressure blower is fixedly communicated with the two weathering cabins through a connecting pipe respectively.

[0011] Further, two symmetrically arranged protective plates are fixedly installed on the end surface of the inspection table. A control panel is fixedly installed on the surface of one of the protective plates. A display screen and a central control button are respectively arranged on the surface of the control panel. A single-chip microcomputer is built in the control panel.

[0012] Further, a liquid inlet pipe and a waste discharge pipe are fixedly communicated with the back surfaces of the pickling cabin and the soaking cabin respectively. Solenoid valves are fixedly installed inside the liquid inlet pipe and the waste discharge pipe.

[0013] Further, a waste storage box with an open top is movably installed at the middle position of the inspection table.

[0014] The beneficial effects of the present invention are as follows:

[0015] Through the settings of structures such as the detection module, pickling tank, soaking tank, spraying tank, electrolysis tank, heating tank, and weathering tank, the device can efficiently complete the durability detection operation of bridge concrete specimens. Moreover, when the device is performing the detection operation, it can truly simulate the acid soaking, water immersion, spraying, electrolytic corrosion, heating, and weathering environments in which bridge concrete is located. Through the true simulation of the above environments, the device can test the durability performance of concrete specimens in various scenarios. And through the settings of the axial screw drive module and the radial screw drive module, the concrete specimens can be flexibly switched in various simulation scenarios during the detection process. Through the realization of the intelligent switching effect of the above detection scenarios, the automation degree of the device during the detection operation is effectively improved.

[0016] Through the setting of the detection module, the device can independently monitor the durability of concrete in various simulation scenarios. Through the realization of the above independent detection effect, it is beneficial to quickly measure the factors affecting the durability performance of concrete specimens. Through the settings of the rotating shaft and the clamp, on the one hand, it can effectively ensure the stability of the concrete specimens during monitoring, and on the other hand, it enables the concrete specimens to perform omnidirectional movement in various simulation cabins. Through the realization of the above omnidirectional movement effect, the detection efficiency of the concrete specimens is effectively improved.

[0017] Other advantages, objectives, and features of the present invention will be described in the subsequent specification, and to some extent, they are obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the objectives, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0019] Figure 1 Schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the rear view perspective structure;

[0021] Figure 3 Schematic diagram of the structure of the mobile frame and the radial screw drive module of the present invention;

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the partial enlarged structure at A in the present invention;

[0023] Figure 5Schematic structural diagram of the lifting frame and rotating motor of the present invention;

[0024] Figure 6 For the present invention Figure 5 Partial enlarged structural schematic diagram at position B in the present invention;

[0025] Figure 7 Schematic structural diagram of the pickling tank and spraying tank of the present invention;

[0026] Figure 8 Schematic structural diagram of the inspection table and negative electrode of the present invention.

[0027] The markings in the drawings are as follows:

[0028] 1. Inspection table, 2. Pickling tank, 3. Soaking tank, 4. Spraying tank, 5. Electrolysis tank, 6. Heating tank, 7. Weathering tank, 8. Waste storage tank, 9. Heating element, 10. Guide frame, 11. Axial lead screw drive module, 12. Moving frame, 13. Radial lead screw drive module, 14. Lifting frame, 15. Pressing frame, 16. Pressing push rod, 17. Pressure application table, 18. Detection plate, 19. Pressure sensor, 20. Rotating shaft, 21. Rotating motor, 22. Positioning seat, 23. Support clamp, 24. Double-headed telescopic tube, 25. Clamp, 26. Spraying seat, 27. Circulation pump, 28. Positive electrode, 29. Negative electrode, 30. Power adapter, 31. Air distribution seat, 32. Protection plate, 33. Control panel, 34. High-pressure blower, baffle 35. Specific embodiments

[0029] Accidents of premature failure and shortened lifespan of concrete structures due to insufficient durability are increasing continuously. Especially for major projects such as dams, roads, bridges, ports, etc. and high-rise buildings, accidents of damage before reaching the design life occur frequently, causing huge economic losses and casualties. Therefore, at present, a device for durability testing of concrete specimens is needed to provide scientific data for bridge construction and bridge maintenance. Based on this, the present invention provides a durability detection system for bridge concrete structures to solve the problems raised in the above background technology.

[0030] The present invention provides the following preferred embodiments

[0031] Such as Figures 1-8As shown in the figure, a durability detection system for a bridge concrete structure includes an inspection platform 1. Inside the inspection platform 1, there are sequentially arranged a pickling tank 2, a soaking tank 3, a spraying tank 4, an electrolysis tank 5, a heating tank 6, and a weathering tank 7 from left to right. A spraying module is fixedly installed inside the spraying tank 4, an electrolysis element is fixedly installed inside the electrolysis tank 5, two symmetrically arranged heating elements 9 are fixedly installed inside the heating tank 6, a weathering component is fixedly installed inside the weathering tank 7, a guiding frame 10 is fixedly installed inside the inspection platform 1, a detection module is slidably connected inside the guiding frame 10, and an axial screw drive module 11 is fixedly installed inside the guiding frame 10. The peripheral surface of the axial screw drive module 11 is in transmission connection with the detection module.

[0032] In this embodiment, as Figure 1 , Figure 5 and Figure 6 shown, the detection module includes a moving frame 12. The peripheral surface of the moving frame 12 is slidably connected with the guiding frame 10. A radial screw drive module 13 is fixedly installed inside the moving frame 12. A lifting frame 14 is slidably connected to the inner wall of the moving frame 12. The peripheral surface of the radial screw drive module 13 is in transmission connection with the lifting frame 14. A pressing frame 15 is fixedly installed at the end face of the moving frame 12. A group of vertically arranged pressing push rods 16 are fixedly installed inside the pressing frame 15. A pressing platform 17 is fixedly installed at the bottom end of a group of pressing push rods 16. A detection plate 18 is arranged below the pressing platform 17. A group of regularly distributed pressure sensors 19 are installed between the relative surfaces of the detection plate 18 and the pressing platform 17. A clamping module is fixedly installed at the bottom end of the lifting frame 14.

[0033] Two symmetrically arranged guide grooves that cooperate with the moving frame 12 are fixedly opened inside the guiding frame 10. Two guiding blocks that cooperate with the guide grooves are fixedly installed inside the moving frame 12. During use, the pressure sensors 19 will feedback the monitored pressure data to the single-chip microcomputer in the control panel 33 in real time. The single-chip microcomputer monitors the compressive strength of the concrete based on the data feedback of the pressure sensors 19. And in the initial state of detection, the detection plate 18 is fully separated from the clamping module.

[0034] In this embodiment, as Figure 6 shown, the clamping module respectively includes a rotating shaft 20 and a rotating motor 21. The peripheral surface of the rotating shaft 20 is rotatably connected with the lifting frame 14. One surface of the rotating motor 21 is fixedly connected with the lifting frame 14. The output shaft end of the rotating motor 21 is in transmission connection with the rotating shaft 20 through a belt. A positioning seat 22 is fixedly installed at the end face of the rotating shaft 20. A supporting clamp 23 is fixedly installed at the bottom surface of the positioning seat 22. A double-headed telescopic tube 24 is installed inside the inner wall of the positioning seat 22. Clamps 25 are fixedly installed at both ends of the double-headed telescopic tube 24. The two clamps 25 are symmetrically arranged.

[0035] When in use, the concrete specimen is placed between the support clamp 23 and the two clamps 25. The support clamp 23 supports the concrete specimen from the bottom of the concrete to be tested, and the two clamps 25 perform positioning and clamping operations on the concrete. When the two clamps 25 are clamping, the user controls the degree of extension and retraction of the double-head telescopic tube 24 to control the clamping degree of the two clamps 25 on the concrete. The interior of the rotating motor 21 is provided with a power-off self-locking structure for its output shaft. Through the above-mentioned self-locking mechanism, the angle of the concrete specimen is effectively limited. When the concrete specimen is in a certain cabin, the rotating motor 21 drives the concrete specimen to perform circular motion at a set speed. Through the occurrence of the circular motion of the concrete specimen, the concrete specimen can fully accept the action of the cabin.

[0036] In this embodiment, Figure 1 , Figure 2 As shown, the radial screw drive module 13 and the axial screw drive module 11 both include a drive motor and a transmission screw. The output shaft end of the drive motor is fixedly connected to the transmission screw. The axis of the transmission screw at the radial screw drive module 13 is perpendicular to the axis of the transmission screw at the axial screw drive module 11, and the axis of the transmission screw at the axial screw drive module 11 is parallel to the horizontal line.

[0037] When in use, the concrete specimen can be driven to switch positions in various compartments through the control of the axial screw drive module 11 and the radial screw drive module 13 .

[0038] In this embodiment, Figure 2 , Figure 7 and Figure 8 As shown, the spray module includes two symmetrically arranged spray seats 26 installed inside the spray cabin 4 and a circulation pump 27 fixed to the back of the inspection table 1. The surfaces of the two spray seats 26 are provided with a group of high-pressure spray holes distributed in a linear array. One end of the liquid inlet of the circulation pump 27 is fixedly connected to the spray cabin 4, and one end of the liquid outlet of the circulation pump 27 is fixedly connected to the two spray seats 26 through pipelines.

[0039] Before the inspection, a certain amount of spray stock solution is pre-injected into the spray chamber 4. During the inspection, the circulation pump 27 works in a set state. After the circulation pump 27 works, the spray stock solution is circulated and sprayed out from the high-pressure spray hole. The spray pressure can be changed by adjusting the power of the circulation pump 27.

[0040] In this embodiment, Figure 2 , Figure 7 and Figure 8As shown, the electrolysis components respectively include a positive electrode 28, a negative electrode 29, and a power adapter 30. The positive electrode 28 and the negative electrode 29 are symmetrically installed inside the electrolysis chamber 5. The ports of the positive electrode 28 and the negative electrode 29 are both electrically connected to the power adapter 30. A group of equally spaced discharge terminals are installed on the surfaces of the positive electrode 28 and the negative electrode 29.

[0041] During use, the power adapter 30 is connected to an external power supply. The power adapter 30 is used to adjust the voltage and current magnitudes of the positive electrode 28 and the negative electrode 29. Through the settings of the positive electrode 28 and the negative electrode 29, and during detection, the inside of the electrolysis chamber 5 is filled with an electrolysis stock solution, which can be a sulfur-containing or chlorine-containing waste liquid. Through electrolysis, the corrosion or erosion rate of the electrolysis stock solution on the concrete specimens can be effectively increased.

[0042] In this embodiment, as Figure 2 , Figure 7 and Figure 8 shown, the weathering components respectively include a high-pressure blower 34 and two air distribution seats 31 installed inside the weathering chamber 7. One surface of each of the two air distribution seats 31 is fixedly connected to the weathering chamber 7. A group of linearly arrayed air distribution spray holes are equally spaced on the surfaces of the two air distribution seats 31. One surface of the high-pressure blower 34 is fixedly connected to the inspection table 1. One end of the air outlet of the high-pressure blower 34 is fixedly communicated with the two weathering chambers 7 respectively through a connecting pipe.

[0043] An electric heating wire is fixedly arranged inside the high-pressure blower 34. When the electric heating wire works, it is paired with a temperature control circuit or a temperature control resistor. Through the settings of the temperature control circuit or the temperature control resistor, the electric heating wire can perform constant temperature heating operations. When the high-pressure blower 34 works, it can blow cold air or hot air.

[0044] In this embodiment, as Figure 1 shown, two symmetrically arranged protective plates 32 are fixedly installed on the end face of the inspection table 1. A control panel 33 is fixedly installed on the surface of one protective plate 32. A display screen and a central control button are respectively arranged on the surface of the control panel 33. A single-chip microcomputer is built into the control panel 33.

[0045] The function of setting the single-chip microcomputer is to receive the data feedback of relevant power components in this device in real time. The data feedback received by the single-chip microcomputer is displayed on the display screen in real time. The function of setting the control panel 33 is to control the power mechanism in this device.

[0046] In this embodiment, as Figure 2 shown, a liquid inlet pipe and a waste discharge pipe are fixedly communicated with the back of the soaking chamber 3 and the soaking chamber 3 respectively. Solenoid valves are fixedly installed inside the liquid inlet pipe and the waste discharge pipe.

[0047] In this embodiment, as Figure 1As shown in the figure, a waste storage box 8 with an open top is movably installed at the middle position of the inspection table 1. During use, the function of the waste storage box 8 is to collect the waste parts to be inspected after the inspection. In this embodiment, a number of annular baffles 35 are evenly distributed along the vertical direction in the weathering chamber 7. A channel for the concrete specimen to pass through is formed in the middle of the baffle 35. By setting the baffle 35, it is possible to prevent the water splashed when the concrete specimen penetrates quickly from affecting the stability of the device or the concrete specimen, making the detection process more accurate.

[0048] The specific usage steps of the present invention are as follows:

[0049] This device is mainly applicable to the detection operation of bridge concrete specimens. During use, a concrete specimen of a set specification is selected. After selection, the concrete specimen is placed on the support pliers 23 and limitedly clamped by two clamping pliers 25. After the concrete specimen is clamped, the simulated scenarios of each chamber are arranged and adjusted. When arranging, a sufficient amount of pickling solution is added to the soaking chamber 3, a sufficient amount of soaking stock solution is added to the soaking chamber 3. The soaking stock solution can be the lake water, sea water or river water where the bridge is located. A sufficient amount of electrolysis stock solution is added to the electrolysis chamber 5, and a sufficient amount of spraying stock solution is added to the spraying chamber 4. The spraying stock solution can be the same as the soaking stock solution. After the above working conditions are simulated, the axial lead screw drive module 11 drives the concrete specimen to carry out environmental simulation in each chamber through cooperation with the radial lead screw drive module 13. Among them, during environmental simulation, the staying or testing time of the concrete specimen in each chamber can be set individually. When the concrete specimen is taken out of each chamber, the detection plate 18 detects the compressive strength of the concrete to be inspected. During detection, the pressure sensor 19 feeds back the monitored data to the single-chip microcomputer in real time, and the single-chip microcomputer monitors and records the simulated working conditions in each chamber and the compressive strength values of the concrete to be inspected under various conditions. Through the analysis of the above recorded data, the durability of the concrete to be inspected is measured.

[0050] In summary, the beneficial effects of the present invention are specifically reflected in:

[0051] Through the settings of structures such as the detection module, pickling chamber, soaking chamber, spraying chamber, electrolysis chamber, heating chamber and weathering chamber, this device can efficiently complete the durability detection operation of bridge concrete specimens, and when this device is performing the detection operation, it can truly simulate the acid soaking, water immersion, spraying, electrolytic corrosion, heating and weathering environments where bridge concrete is located.

[0052] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A durability detection system for a bridge concrete structure, comprising an inspection platform, characterized in that: Inside the inspection table, there are pickling tanks, immersion tanks, spray tanks, electrolysis tanks, heating tanks, and weathering tanks arranged in sequence from left to right. Inside the spray tank, a spray module is fixedly installed. Inside the electrolysis tank, electrolysis components are fixedly installed. Inside the heating tank, two symmetrically arranged heating elements are fixedly installed. Inside the weathering tank, a weathering component is fixedly installed. Inside the inspection table, a guiding frame is fixedly installed. Inside the guiding frame, a detection module is slidably connected. Inside the guiding frame, an axial lead screw drive module is fixedly installed. The circumferential surface of the axial lead screw drive module is in transmission connection with the detection module. The detection module includes a moving frame. The circumferential surface of the moving frame is slidably connected with the guiding frame. Inside the moving frame, a radial lead screw drive module is fixedly installed. An elevating frame is slidably connected to the inner wall of the moving frame. The circumferential surface of the radial lead screw drive module is in transmission connection with the elevating frame. A pressing frame is fixedly installed on the end face of the moving frame. Inside the pressing frame, a group of vertically arranged pressing push rods are fixedly installed. At the bottom end of a group of pressing push rods, a pressure application table is fixedly installed. Below the pressure application table, a detection plate is arranged. A group of regularly distributed pressure sensors are installed between the opposite surfaces of the detection plate and the pressure application table. A clamping module is fixedly installed at the bottom end of the elevating frame; The clamping module respectively includes a rotating shaft and a rotating motor. The circumferential surface of the rotating shaft is rotatably connected with the elevating frame. One surface of the rotating motor is fixedly connected with the elevating frame. The output shaft end of the rotating motor is in transmission connection with the rotating shaft through a belt. A positioning seat is fixedly installed on the end face of the rotating shaft. A support clamp is fixedly installed on the bottom surface of the positioning seat. A double-headed telescopic pipe is installed inside the inner wall of the positioning seat. Clamping pliers are fixedly installed at both ends of the double-headed telescopic pipe. The two clamping pliers are symmetrically arranged; Both the radial lead screw drive module and the axial lead screw drive module include a drive motor and a transmission lead screw. The output shaft end of the drive motor is fixedly connected with the transmission lead screw. The axis of the transmission lead screw at the radial lead screw drive module is perpendicular to the axis of the transmission lead screw at the axial lead screw drive module. The axis of the transmission lead screw at the axial lead screw drive module is parallel to the horizontal line; The spray module respectively includes two symmetrically arranged spray seats installed inside the spray tank and a circulating pump fixed to the back of the inspection table. A group of linearly arrayed high-pressure spray holes are formed on the surfaces of the two spray seats. One end of the liquid inlet of the circulating pump is fixedly communicated with the spray tank. One end of the liquid outlet of the circulating pump is fixedly communicated with the two spray seats through pipes respectively; The electrolysis components respectively include a positive electrode, a negative electrode, and a power adapter. The positive electrode and the negative electrode are symmetrically installed inside the electrolysis tank. The ports of the positive electrode and the negative electrode are electrically connected to the power adapter. A group of equidistantly distributed discharge terminals are installed on the surfaces of the positive electrode and the negative electrode;The weathering components respectively include a high-pressure blower and two air distribution seats installed inside the weathering chamber. One surface of each of the two air distribution seats is fixedly connected to the weathering chamber. A group of air distribution spray holes distributed in a linear array are equidistantly formed on the surfaces of the two air distribution seats. One surface of the high-pressure blower is fixedly connected to the inspection table. One end of the air outlet of the high-pressure blower is fixedly communicated with the two weathering chambers respectively through a connecting pipe.; 2. The durability detection system for a bridge concrete structure according to claim 1, wherein: Two symmetrically arranged protective plates are fixedly installed on the end face of the inspection table. A control panel is fixedly installed on the surface of one of the protective plates. A display screen and central control buttons are respectively arranged on the surface of the control panel. A single-chip microcomputer is built into the control panel.

3. The durability detection system for a bridge concrete structure according to claim 1, characterized in that: A liquid inlet pipe and a waste discharge pipe are fixedly connected to the back of both the pickling tank and the soaking tank. Solenoid valves are fixedly installed inside both the liquid inlet pipe and the waste discharge pipe.

4. A durability detection system for a bridge concrete structure according to claim 1, characterized in that: A waste storage box with an open top is movably installed at the middle position of the inspection table.

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