Rapid Corrosion Testing Device for Reinforced Concrete

Abstract

This invention provides a rapid corrosion testing device for reinforced concrete. Its housing has a test chamber and a through-hole communicating with the test chamber. A supporting structure for a partitioning component is disposed within the test chamber, and the partitioning structure is movably mounted on the supporting structure. Multiple partitioning structures are used, dividing the test chamber into multiple sub-test chambers when each partition is in its separated position. When at least one partition is in a connected position, two adjacent sub-test chambers are interconnected through a connecting hole. A spraying component is used to spray the test medium into the sub-test chambers. A corrosion testing component is disposed within the sub-test chambers, its electrolytic cell containing electrolyte. A supporting member supports the test specimen, with one end of the test specimen extending into the electrolyte for corrosion testing under energized conditions. This invention effectively solves the problems of insufficient test results and low testing efficiency in existing reinforced concrete corrosion testing devices.

Description

Technical Field

[0001] This invention relates to the field of corrosion testing technology, and more specifically, to a rapid corrosion testing device for reinforced concrete. Background Technology

[0002] Currently, the main inducing factor for the degradation of the durability of reinforced concrete structures is steel corrosion, which is caused by a variety of factors, such as Cl- corrosion, CO2, O2, and temperature. Among these, Cl- corrosion is the primary factor, while carbonization, oxidation, and temperature generally have a smaller impact on steel corrosion. However, to better study the steel corrosion process, it is necessary to comprehensively consider factors such as carbonization, oxidation, and temperature.

[0003] In existing technologies, in order to better simulate the impact of complex environments on steel corrosion, corrosion testing devices are often able to simulate multiple environmental factors simultaneously in order to test the impact of multi-factor coupled environments on steel corrosion.

[0004] However, in actual use, steel bars face a complex and diverse environment. Existing corrosion testing equipment can only simulate and couple multiple factors simultaneously, but cannot test the effect of a single factor on steel bar corrosion. Staff cannot explore the impact of a certain factor on steel bar corrosion, the test results are not comprehensive enough, and the test process can only be carried out on steel bars under a specific test condition (a specific environment simulated and coupled). If the test conditions are changed, the steel bars need to be disassembled and reassembled and the test needs to be carried out again, which also results in low test efficiency. Summary of the Invention

[0005] The main objective of this invention is to provide a rapid corrosion testing device for reinforced concrete, so as to solve the problems that the test results of the existing steel corrosion testing devices are not comprehensive enough and the test efficiency is low.

[0006] To achieve the above objectives, the present invention provides a rapid corrosion testing device for reinforced concrete, comprising: a housing having a test chamber and a through hole communicating with the test chamber; a partitioning assembly including a support structure and a partitioning structure, the support structure being disposed within the test chamber, the partitioning structure being movably disposed on the support structure, at least a portion of the partitioning structure passing through the through hole; wherein, there are multiple partitioning structures, each having a partitioning position and a communicating position, when each partitioning structure is in the partitioning position, the multiple partitioning structures divide the test chamber into multiple sub-test chambers, and when at least one partitioning structure is in the communicating position, the partitioning structure and at least a portion of the inner wall of the test chamber and the support structure form a communicating hole, and two sub-test chambers adjacent to the partitioning structure are interconnected through the communicating hole; a spraying assembly, at least one sub-test chamber being provided with a spraying assembly for spraying a test medium into the sub-test chamber; and a corrosion testing assembly disposed within the sub-test chamber, the corrosion testing assembly including a support member and an electrolytic cell, the electrolytic cell containing an electrolyte, the support member for supporting the test specimen, one end of the test specimen extending into the electrolyte to perform a corrosion test under energized conditions.

[0007] Furthermore, the partition assembly also includes: a first driving device, which is disposed on the housing, and the end of the partition structure extending out of the test chamber through a through hole is driven to be connected to the first driving device. The first driving device is used to drive the partition structure to move up and down. The outer peripheral surface of the support structure is provided with a first mating part, and the partition structure is provided with a second mating part. One of the first mating part and the second mating part is a protrusion, and the other of the first mating part and the second mating part is a recess. The protrusion extends into the recess and can slide along the extension direction of the recess.

[0008] Furthermore, the support includes: a support body; a second driving device disposed on the support body; and a clamping structure disposed on the driving end of the second driving device. The clamping structure is used to clamp the test piece, and the second driving device is used to drive the clamping structure to move the test piece up and down.

[0009] Furthermore, the support body includes: a rod-shaped support member with mounting holes; a mounting plate detachably mounted at the mounting holes, and a second drive device mounted on the mounting plate; wherein there are multiple mounting holes, which are spaced apart along the extension direction of the rod-shaped support member, and the height of the second drive device can be adjusted by adjusting the mounting position of the mounting plate.

[0010] Furthermore, the rapid corrosion test device for reinforced concrete also includes a rotating assembly for driving the support member to rotate. The support structure is disposed on the top wall of the test chamber and located above the rotating assembly. The rotating assembly includes: a plate-shaped rotating end, rotatably disposed in the test chamber, the plate-shaped rotating end having a first insertion portion, the support member having a second insertion portion, one of the first insertion portion and the second insertion portion having an insertion protrusion, and the other of the first insertion portion and the second insertion portion having an insertion recess, the insertion protrusion extending into the insertion recess and engaging with the insertion recess; wherein, there are multiple first insertion portions, and the multiple first insertion portions are spaced apart along the length direction and / or width direction of the plate-shaped rotating end.

[0011] Furthermore, the plate-shaped rotating end also has a third insertion portion, and the housing also has a mounting cavity located below the test chamber. The rotating assembly also includes: a third driving device, disposed in the mounting cavity, with the driving end of the third driving device extending into the test chamber; a connector, disposed on the driving end of the third driving device, the connector having a fourth insertion portion, one of the third and fourth insertion portions being an insertion protrusion, and the other of the third and fourth insertion portions being an insertion recess, the insertion protrusion extending into the insertion recess and engaging with the insertion recess, the third driving device being used to drive the connector to rotate the plate-shaped rotating end; wherein, there are multiple fourth insertion portions, and multiple plate-shaped rotating ends, the multiple fourth insertion portions are spaced apart around the rotation axis of the connector, and the multiple fourth insertion portions are arranged one-to-one with the multiple third insertion portions of the plate-shaped rotating ends.

[0012] Furthermore, the multiple sub-test chambers include a corrosion chamber, a humidification chamber, a carbon dioxide erosion chamber, and an oxygen erosion chamber. Each of the humidification chamber, carbon dioxide erosion chamber, and oxygen erosion chamber is equipped with a spray assembly, which is used to spray at least one of water, carbon dioxide gas, or oxygen.

[0013] Furthermore, the partition structure is plate-shaped, and the rapid corrosion test device for reinforced concrete also includes: a plug-in seat, set on the bottom wall of the test chamber, the plug-in seat having multiple extension arms, each extension arm having a plug-in groove, the partition structure being inserted into the plug-in groove when the partition structure is in the partition position, the plug-in seat having a through hole for the drive end of the third drive device to pass through, and a connector located between the plug-in seat and the support structure; wherein, there are multiple extension arms, and multiple extension arms are set one-to-one with multiple partition structures; a partition plate, set between two adjacent extension arms and located in the corrosion chamber, the partition plate being located below the plate-shaped rotating end, and a cooling chamber being formed by the partition plate, the extension arms, and the bottom wall of the corrosion chamber; and a temperature regulating assembly, including a cooling device and a heating device, the heating device being set on the top wall of the corrosion chamber, the compressor of the cooling device being set in the mounting chamber, and the cooling end of the cooling device being located in the cooling chamber.

[0014] Furthermore, the rapid corrosion testing device for reinforced concrete includes a base, with a housing mounted on the base. The spraying assembly includes: a spraying structure comprising a main body and multiple connecting pipes connected to the main body, with a nozzle at the end of each connecting pipe furthest from the main body; wherein there are at least three spraying structures, with at least one spraying structure in each of the humidification chamber, carbon dioxide corrosion chamber, and oxygen corrosion chamber; the nozzle of the spraying structure in the humidification chamber is an atomizing nozzle, and the nozzles of the spraying structures in the carbon dioxide corrosion chamber and oxygen corrosion chamber are gas nozzles; and at least three storage structures disposed within the base, including a first storage structure, a second storage structure, and a third storage structure; the first storage structure is used to store water, the second storage structure... The pump body is used to store carbon dioxide gas, and the third storage structure is used to store oxygen. It is located within the mounting cavity. At least three storage structures are connected to the pump body's inlet end via a first pipeline. At least three first control valves are installed on the first pipeline, each corresponding to one of the at least three storage structures. The first control valves control the connection or disconnection between the corresponding storage structure and the pump body. The pump body's outlet end is connected to the main body of at least three injection structures via a second pipeline. At least three second control valves are installed on the second pipeline, each corresponding to one of the injection structures. The second control valves control the connection or disconnection between the corresponding injection structure and the pump body.

[0015] Furthermore, at least a portion of the second pipeline is made of a flexible material, and the housing is also provided with a chute communicating with the test chamber. The chute extends along the height direction of the housing, and along the depth direction of the chute, the chute includes a first sub-groove and a second sub-groove that communicate with each other. The first sub-groove is located on the inner wall of the test chamber, and the second sub-groove is located on the outer circumferential surface of the housing. The length of the first sub-groove is less than the length of the second sub-groove, and the width of the first sub-groove is less than the width of the second sub-groove. The spray assembly also includes: a sliding seat, at least a portion of which is slidably disposed within the chute. The sliding seat includes a mounting body and a sealing plate disposed on the mounting body. Along the sliding direction of the mounting body, the sealing plate is located on both sides of the mounting body. The sealing plate is located within the second sub-groove, and at least a portion of the mounting body is located within the first sub-groove. The sealing plate is used to seal the first sub-groove during the sliding of the sliding seat. The mounting body is provided with a perforated portion for installation of the communicating body. A fourth driving device is disposed on the housing and is drivenly connected to the sliding seat to drive the sliding seat to slide the spray structure.

[0016] According to the technical solution of this invention, the housing of the rapid corrosion test device for reinforced concrete has a test chamber and a through hole communicating with the test chamber. The support structure of the partition component is disposed inside the test chamber, and the partition structure is movably disposed on the support structure. At least a portion of the partition structure passes through the through hole. Multiple partition structures are provided, each having a partition position and a communicating position. When each partition structure is in the partition position, the multiple partition structures divide the test chamber into multiple sub-test chambers. When at least one partition structure is in the communicating position, a communicating hole is formed between the partition structure, at least a portion of the inner wall of the test chamber, and the support structure. Two sub-test chambers adjacent to the partition structure are interconnected through the communicating hole. At least one sub-test chamber is provided with a spraying component for spraying the test medium into the sub-test chamber. The corrosion test component is disposed inside the sub-test chamber, and the electrolytic cell of the corrosion test component contains electrolyte. A support member is used to support the test specimen, with one end of the test specimen extending into the electrolyte for corrosion testing under energized conditions. Thus, the rapid corrosion testing device for reinforced concrete in this application achieves the separation of multiple independent sub-test chambers and their interconnection through a liftable partition structure. When the multiple independent sub-test chambers are separated, the test medium is sprayed through the spraying components in each sub-test chamber, enabling the sub-test chamber to simulate the test environment of a single environmental factor variable, ensuring that the rapid corrosion testing device for reinforced concrete can conduct corrosion tests on the test specimens under a single environmental factor variable. When the multiple independent sub-test chambers are interconnected through connecting holes, the test medium can be mixed to simulate the test environment of multiple environmental factor variables, enabling corrosion tests on the test specimens under multiple environmental factor variables. Simultaneously, the testing personnel can selectively connect the sub-test chambers according to actual needs to form multiple pre-test chambers (if they are not connected, one sub-test chamber can form one pre-test chamber). By placing corrosion test components in multiple pre-test chambers, simultaneous corrosion tests on multiple test specimens can be achieved, greatly improving the testing efficiency of the testing personnel, thereby solving the problems of insufficient test results and low testing efficiency in existing steel corrosion testing devices. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the rapid corrosion testing device for reinforced concrete according to the present invention is shown;

[0019] Figure 2 It shows Figure 1Cross-sectional view of the rapid corrosion test device for reinforced concrete in the image;

[0020] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the partition components and connectors of the rapid corrosion test device for reinforced concrete.

[0021] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the electrolytic cell in the rapid corrosion test device for reinforced concrete.

[0022] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the rotating components and support components of the rapid corrosion test device for reinforced concrete after assembly.

[0023] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the partition of the rapid corrosion test device for reinforced concrete;

[0024] Figure 7 It shows Figure 1 A three-dimensional structural diagram of the refrigeration unit of the rapid corrosion test device for reinforced concrete.

[0025] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the spraying component of the rapid corrosion test device for reinforced concrete.

[0026] Figure 9 It shows Figure 8 Enlarged diagram of point A in the diagram.

[0027] The above figures include the following reference numerals:

[0028] 1. Housing; 2. Support structure; 3. Socket; 4. Socket slot; 5. Partition structure; 6. First drive device; 7. First connection structure; 8. Heating device; 9. Cooling end; 10. Condenser; 11. Compressor; 12. Partition plate; 13. Connector; 14. Third drive device; 15. Fourth socket; 16. Plate-shaped rotating end; 161. First socket; 162. Third socket; 17. Second socket; 18. Rod-shaped support; 19. Mounting plate; 20. Second drive device; 21. Clamping structure; 22. Test piece; 23. Door; 24. Connector; 25. Electrolytic cell; 26. Anode slot; 27. Third connecting structure; 28. Base; 29. ​​Storage structure; 30. Support frame; 31. Pump body; 32. First four-way valve; 33. Second pipeline; 34. Connecting body; 35. Connecting pipe; 36. Nozzle; 37. Slide groove; 371. First sub-groove; 372. Second sub-groove; 38. Mounting body; 39. Sealing plate; 40. Second connecting structure; 41. Fourth driving device; 42. Second four-way valve; 44. First pipeline; 45. Corrosion chamber; 46. Humidification chamber; 47. Carbon dioxide corrosion chamber; 48. Oxygen corrosion chamber; 49. Mounting chamber; 50. Refrigeration chamber. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this invention, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0032] To address the issues of insufficient test results and low test efficiency in existing steel corrosion testing devices, this application provides a rapid corrosion testing device for reinforced concrete.

[0033] like Figures 1 to 9As shown, the rapid corrosion test device for reinforced concrete includes: a housing 1 having a test chamber and a through hole communicating with the test chamber; and a partitioning assembly including a support structure 2 and a partitioning structure 5. The support structure 2 is disposed inside the test chamber, and the partitioning structure 5 is movably disposed on the support structure 2, with at least a portion of the partitioning structure 5 passing through the through hole. There are multiple partitioning structures 5, each having a partitioning position and a communicating position. When each partitioning structure 5 is in the partitioning position, the multiple partitioning structures 5 divide the test chamber into multiple sub-test chambers. When at least one partitioning structure 5 is in the communicating position... The partition structure 5 and at least part of the inner wall of the test chamber and the support structure 2 form a connecting hole, and two sub-test chambers adjacent to the partition structure 5 are connected to each other through the connecting hole; a spraying assembly is provided in at least one sub-test chamber, and the spraying assembly is used to spray the test medium into the sub-test chamber; a corrosion test assembly is provided in the sub-test chamber, and the corrosion test assembly includes a support and an electrolytic cell 25. The electrolytic cell 25 contains an electrolyte, and the support is used to support the test piece 22. One end of the test piece 22 extends into the electrolyte to perform a corrosion test under energized conditions.

[0034] Applying the technical solution of this embodiment, the housing 1 of the rapid corrosion test device for reinforced concrete has a test chamber and a through hole communicating with the test chamber. The support structure 2 of the partition component is disposed inside the test chamber, and the partition structure 5 is movably disposed on the support structure 2. At least a portion of the partition structure 5 passes through the through hole. There are multiple partition structures 5, each having a partition position and a communicating position. When each partition structure 5 is in the partition position, the multiple partition structures 5 divide the test chamber into multiple sub-test chambers. When at least one partition structure 5 is in the communicating position, the partition structure 5, at least a portion of the inner wall of the test chamber, and the support structure 2 form a communicating hole. Two sub-test chambers adjacent to the partition structure 5 are interconnected through the communicating hole. At least one sub-test chamber is provided with a spraying component for spraying the test medium into the sub-test chamber. The corrosion test component is disposed inside the sub-test chamber. The electrolytic cell 25 of the corrosion test component contains electrolyte. A support member is used to support the test specimen 22, one end of which extends into the electrolyte to conduct a corrosion test under energized conditions. Thus, the rapid corrosion testing device for reinforced concrete in this embodiment achieves the separation of multiple independent sub-test chambers and their interconnection through the liftable partition structure 5. When the multiple independent sub-test chambers are separated, the test medium is sprayed through the spraying components in each sub-test chamber, enabling the sub-test chamber to simulate the test environment of a single environmental factor variable, ensuring that the rapid corrosion testing device for reinforced concrete can conduct corrosion tests on the test specimens under a single environmental factor variable. When the multiple independent sub-test chambers are interconnected through connecting holes, the test medium can be mixed to simulate the test environment of multiple environmental factor variables, enabling corrosion tests on the test specimens under multiple environmental factor variables. At the same time, the testers can selectively connect the sub-test chambers according to actual needs to form multiple preparatory test chambers (if they are not connected, one sub-test chamber can form one preparatory test chamber). By placing corrosion test components in multiple preparatory test chambers, the synchronous corrosion tests of multiple test specimens 22 can be achieved, greatly improving the test efficiency of the testers, and thus solving the problems of insufficient test results and low test efficiency of existing steel corrosion testing devices.

[0035] In this embodiment, the test specimen 22 is a steel bar.

[0036] like Figure 4As shown, the electrolytic cell 25 in this embodiment is barrel-shaped and contains an electrolyte. A circular anode slot 26 is provided at the bottom of the electrolytic cell 25, and a connecting part 24 is provided on the outer circumference. The connecting part 24 has fastener through holes, that is, the electrolytic cell 25 is fixed to the cavity wall of the test chamber by fasteners. At the same time, the electrolytic cell 25 is energized (electrical components such as wires are omitted in the figure). When the steel bar is inserted into the anode slot 26, a stable circuit is formed, so as to study the effect of chloride ion concentration on the corrosion process of steel bar by adjusting the chloride ion concentration in the electrolyte.

[0037] Specifically, the box 1 includes a box body and a box door 23 on the box body. The box door 23 is hinged to the box body to enable flipping and opening of the box 1, thereby facilitating the disassembly and assembly of the test piece 22 by the test personnel.

[0038] Specifically, in this embodiment, the electrolytic cell 25 is fixed to the door 23 so that when the test personnel open the door 23, the electrolytic cell 25 can be directly moved to the outside of the test chamber, so that the test personnel can pour and replace the electrolyte into the electrolytic cell 25.

[0039] Specifically, the door 23 is provided with a transparent section to allow the test personnel to observe the corrosion process of the test piece 22.

[0040] Specifically, the rapid corrosion test device for reinforced concrete also includes an electrochemical workstation, which can monitor parameters such as the current state and current density of the test piece 22, so that test personnel can understand the development and evolution of the corrosion process.

[0041] In this embodiment, box 1 is a cuboid box.

[0042] like Figure 3 As shown, the partition assembly also includes: a first driving device 6, mounted on the housing 1; the end of the partition structure 5 extending out of the test chamber through a through hole is connected to the first driving device 6, which drives the partition structure 5 to move up and down; wherein, a first mating part is provided on the outer peripheral surface of the support structure 2, and a second mating part is provided on the partition structure 5; one of the first and second mating parts is a protrusion, and the other is a recess; the protrusion extends into the recess and can slide along the extension direction of the recess. Thus, the above arrangement, on the one hand, achieves a sliding connection between the partition structure 5 and the support structure 2 through the sliding fit between the first and second mating parts; on the other hand, it achieves automated up and down movement of the partition structure 5 through the first driving device 6, thereby improving the automation level of the partition assembly. Simultaneously, the above arrangement also makes the structure of the first and second mating parts more flexible and diverse to adapt to different working conditions and usage requirements, and also improves the processing flexibility of the workers.

[0043] In this embodiment, the first mating part is a strip-shaped protrusion, and the second mating part is a strip-shaped recess.

[0044] In other embodiments shown in the accompanying drawings, the first mating part may be a recess and the second mating part may be a protrusion.

[0045] In this embodiment, the first driving device 6 is a driving cylinder, such as a pneumatic cylinder.

[0046] In this embodiment, the rapid corrosion test device for reinforced concrete also includes a first connecting structure 7. The first connecting structure 7 is only used to fix the first driving device 6 to the housing 1. Its structure can be adjusted accordingly and is not specifically limited.

[0047] like Figure 5 As shown, the support includes: a support body; a second drive device 20, disposed on the support body; and a clamping structure 21, disposed on the drive end of the second drive device 20. The clamping structure 21 is used to clamp the test piece 22, and the second drive device 20 is used to drive the clamping structure 21 to move the test piece 22 up and down. Thus, the above arrangement, on the one hand, achieves fixation of the test piece 22 through the clamping structure 21; on the other hand, achieves the up and down movement of the test piece 22 through the second drive device 20, so that the test piece 22 can automatically extend into the electrolytic cell 25 to begin the corrosion test.

[0048] In this embodiment, the clamping structure is a 21-position finger clamp cylinder.

[0049] Optionally, the second drive unit 20 is a drive cylinder, such as a pneumatic cylinder.

[0050] like Figure 5 As shown, the support body includes: a rod-shaped support member 18 with mounting holes; a mounting plate 19 detachably mounted at the mounting holes; and a second drive device 20 mounted on the mounting plate 19. Multiple mounting holes are spaced apart along the extension direction of the rod-shaped support member 18. The height of the second drive device 20 can be adjusted by adjusting the mounting position of the mounting plate 19. Thus, while providing a mounting base for the second drive device 20 through the mounting plate 19, the above arrangement allows operators to adjust the height of the mounting plate 19 by adjusting the position of the mounting holes, thereby increasing the driving range of the second drive device 20. This adapts to test specimens 22 of different specifications and sizes, improving the versatility of the rapid corrosion testing device for reinforced concrete.

[0051] In this embodiment, the mounting hole is a circular through hole, and the mounting plate 19 is an L-shaped plate. One section of the plate is used for mounting the second driving device 20, and the other section is provided with a connector. The connector is detachably connected to the circular through hole.

[0052] In this embodiment, there are five mounting holes.

[0053] It should be noted that the number of mounting holes is not limited to this and can be adjusted according to working conditions and usage requirements.

[0054] like Figure 5 As shown, the rapid corrosion test device for reinforced concrete also includes a rotating assembly for driving the support member to rotate. The support structure 2 is disposed on the top wall of the test chamber and located above the rotating assembly. The rotating assembly includes: a plate-shaped rotating end 16, which is rotatably disposed in the test chamber. The plate-shaped rotating end 16 has a first insertion portion 161, and the support member has a second insertion portion 17. One of the first insertion portion 161 and the second insertion portion 17 has an insertion protrusion, and the other of the first insertion portion 161 and the second insertion portion 17 is an insertion recess. The insertion protrusion extends into the insertion recess and engages with the insertion recess. There are multiple first insertion portions 161, and the multiple first insertion portions 161 are spaced apart along the length direction and / or width direction of the plate-shaped rotating end. Thus, before the test begins, after the test personnel have installed the test specimen 22, they can first operate the partition structure 5 to rise to the connected position, and then use the plate-shaped rotating end 16 to move the test specimen 22 into the corresponding sub-test chamber. After that, the partition structure 5 can be operated to descend to the partition position to achieve corrosion testing of the test specimen 22 under any environmental factor variables. At the same time, the setting of the first insertion part 161 not only allows the actual setting position of the support to be adjusted (by changing the first insertion part 161 inserted into the second insertion part 17) to adapt to test specimens 22 of different sizes, thereby improving the versatility of the rapid corrosion testing device for reinforced concrete, but also makes the structure of the first insertion part 161 and the second insertion part 17 more flexible and diverse to adapt to different working conditions and usage requirements.

[0055] In this embodiment, the first insertion part 161 is hole-shaped, and the second insertion part 17 includes a disc body and an insertion protrusion disposed on the disc body. The disc body is disposed on the end of the rod-shaped support 18 away from the mounting plate 19, and the insertion protrusion is disposed on the plate surface of the disc body away from the rod-shaped support 18. In this way, the disc body can be limited and stopped between itself and the plate-shaped rotating end 16 to improve the insertion stability of the support.

[0056] In other embodiments shown in the accompanying drawings, the first insertion portion is an insertion protrusion, and the second insertion portion is a recess.

[0057] In this embodiment, the plate-shaped rotating end 16 has a fan-shaped structure to avoid interference between it and the inner wall of the test chamber during rotation, thereby improving the rotation reliability of the plate-shaped rotating end 16.

[0058] like Figure 5As shown, the plate-shaped rotating end 16 also has a third insertion portion 162, and the housing 1 also has a mounting cavity 49 located below the test chamber. The rotating assembly also includes: a third driving device 14, which is disposed in the mounting cavity 49, and the driving end of the third driving device 14 extends into the test chamber; a connector 13, which is disposed on the driving end of the third driving device 14, and the connector 13 has a fourth insertion portion 15. One of the third insertion portion 162 and the fourth insertion portion 15 is an insertion protrusion, and the other of the third insertion portion 162 and the fourth insertion portion 15 is an insertion recess. The insertion protrusion extends into the insertion recess and engages with the insertion recess. The third driving device 14 is used to drive the connector 13 to rotate the plate-shaped rotating end 16. There are multiple fourth insertion portions 15 and multiple plate-shaped rotating ends 16. The multiple fourth insertion portions 15 are spaced apart around the rotation axis of the connector 13, and the multiple fourth insertion portions 15 are arranged one-to-one with the multiple third insertion portions 162 of the plate-shaped rotating ends 16. In this way, the automatic rotation of the plate-shaped rotating end 16 is achieved through the third drive device 14. By placing the third drive device 14 inside the mounting cavity, it is separated from the test cavity to prevent corrosion and extend its service life. Simultaneously, the aforementioned arrangement of the connecting member 13 ensures that the third drive device 14 can simultaneously drive multiple plate-shaped rotating ends 16, enabling the installation of multiple test pieces 22 and corresponding corrosion tests, thereby improving the testing efficiency of the rapid corrosion testing device for reinforced concrete.

[0059] In this embodiment, there are four partition structures 5, four sub-test chambers, and correspondingly, four plate-shaped rotating ends 16.

[0060] It should be noted that the attached diagram only shows the structure when the plate-shaped rotating end 16 is installed; the test personnel can make corresponding adjustments.

[0061] Specifically, since the opening size of the box door 23 is limited, the plate-shaped rotating end 16 can also facilitate the installation of the support and the test piece 22 by the test personnel. That is, after the test personnel insert a support and install a test piece 22, they can operate the third drive device 14 to drive the plate-shaped rotating end 16 to rotate so that the plate-shaped rotating end 16 without the support is installed is rotated to correspond to the box door 23, which facilitates the installation by the test personnel.

[0062] Specifically, the number of electrolytic cells 25 can be increased according to actual needs.

[0063] Specifically, the third insertion part 162 is a through hole, the fourth insertion part 15 is an L-shaped plate, the connector 13 is generally in the shape of a disc, one plate segment of the fourth insertion part 15 is connected to the outer peripheral surface of the connector 13, and the other plate segment is inserted into the third insertion part 162.

[0064] In this embodiment, the multiple sub-test chambers include a corrosion chamber 45, a humidification chamber 46, a carbon dioxide corrosion chamber 47, and an oxygen corrosion chamber 48. Each of the humidification chamber 46, carbon dioxide corrosion chamber 47, and oxygen corrosion chamber 48 is equipped with a spraying assembly for spraying water, carbon dioxide gas, or at least one of oxygen. This arrangement enables the rapid corrosion testing device for reinforced concrete in this embodiment to simulate and couple humidity, carbon dioxide gas concentration, and oxygen concentration, thereby maximizing the coverage of influencing factors in the steel corrosion test and ensuring a sufficiently comprehensive test structure.

[0065] Specifically, the rapid corrosion test device for reinforced concrete in this embodiment can simulate humidity, carbon dioxide gas concentration and oxygen concentration individually, or simulate any two of the three simultaneously, or simulate all three simultaneously, so as to meet the requirements of the influencing factors of the corrosion test to the greatest extent.

[0066] like Figures 1 to 3As shown, the partition structure 5 is plate-shaped. The rapid corrosion test device for reinforced concrete also includes: a plug-in seat 3, which is set on the bottom wall of the test chamber. The plug-in seat 3 has multiple extension arms, and each extension arm has a plug-in groove 4. When the partition structure 5 is in the partition position, the partition structure 5 is inserted into the plug-in groove 4. The plug-in seat 3 is provided with a through hole for the drive end of the third drive device 14 to pass through. The connector 13 is located between the plug-in seat 3 and the support structure 2. There are multiple extension arms, and the multiple extension arms are arranged one-to-one with the multiple partition structures 5. A partition plate 12 is set between two adjacent extension arms and is located in the corrosion chamber 45. The partition plate 12 is located below the plate-shaped rotating end 16. The partition plate 12, the extension arms, and the bottom wall of the corrosion chamber 45 surround to form a cooling chamber 50. A temperature regulating component includes a cooling device and a heating device 8. The heating device 8 is set on the top wall of the corrosion chamber 45. The compressor 11 of the cooling device is set in the mounting cavity 49. The cooling end 9 of the cooling device is located in the cooling chamber 50. In this way, by inserting the plate-shaped partition structure 5 into the insertion slot 4, the partition reliability of the partition structure 5 can be maximized, preventing gas mixing in the sub-test chamber when the partition structure 5 is in the partitioned position. Simultaneously, the partition plate 12 further separates the cooling chamber 50, thus isolating and protecting the cooling end 9 to prevent gas or liquid in the sub-test chamber from affecting the service life of the cooling device. Furthermore, the inclusion of the cooling and heating devices 8 allows for further temperature regulation in the corrosion chamber 45, further expanding the environmental conditions that the rapid corrosion test device for reinforced concrete can simulate, ensuring a more comprehensive and accurate test structure.

[0067] In this embodiment, there are four extension arms, each with a corresponding insertion slot 4. The four insertion slots 4 are arranged one-to-one with the four partition structures 5.

[0068] In this embodiment, the refrigeration device also includes a condenser 10, and the refrigeration end 9 is actually an evaporator. The three are interconnected and an expansion valve is provided on the connecting pipe. Its structure is relatively conventional and will not be described in detail here.

[0069] Optionally, the heating device 8 can be a hot air blower, an electric heating device, etc., as long as it can generate heat.

[0070] In this embodiment, the third drive device 14 is a combination of a servo motor and a reducer.

[0071] In this embodiment, the partition 12 has a triangular structure to match the structure of the box 1, thereby ensuring its high separation reliability.

[0072] Specifically, in this embodiment, the connector 13 and the support structure 2 only abut against each other, and a corresponding sealing structure can be provided between them. When the connector 13 rotates, it will not drive the support structure 2 to rotate.

[0073] Specifically, in this embodiment, the rotation axis of the connector 13 coincides with the central axis of the support structure 2, and the support structure 2 is a cylindrical structure.

[0074] Optionally, a flexible seal is provided in the insertion groove 4. After the partition structure 5 is inserted into the insertion groove 4, it can cause the flexible seal to undergo flexible deformation, thereby sealing the gap between the two.

[0075] like Figure 7 As shown, the rapid corrosion test device for reinforced concrete includes a base 28, a housing 1 mounted on the base 28, and a spraying assembly including: a spraying structure comprising a connecting body 34 and multiple connecting pipes 35 connected to the connecting body 34, with a nozzle 36 at the end of each connecting pipe 35 away from the connecting body 34; wherein there are at least three spraying structures, with at least one spraying structure provided in each of the humidification chamber 46, the carbon dioxide corrosion chamber 47, and the oxygen corrosion chamber 48; the nozzle 36 of the spraying structure in the humidification chamber 46 is an atomizing nozzle, and the nozzles 36 of the spraying structures in the carbon dioxide corrosion chamber 47 and the oxygen corrosion chamber 48 are gas nozzles; at least three storage structures 29 are provided within the base 28, including a first storage structure, a second storage structure, and a third storage structure; the first storage structure is used to store water, the second storage structure is used to store water, the third ... The second storage structure stores carbon dioxide gas, and the third storage structure stores oxygen. The pump body 31 is located within the mounting cavity 49. At least three storage structures 29 are connected to the inlet end of the pump body 31 via a first pipeline 44. At least three first control valves are installed on the first pipeline 44, each corresponding to one of the storage structures 29. These first control valves control the connection or disconnection between the corresponding storage structure 29 and the pump body 31. The outlet end of the pump body 31 is connected to the main body 34 of at least three injection structures via a second pipeline 33. At least three second control valves are installed on the second pipeline 33, each corresponding to one of the injection structures. These second control valves control the connection or disconnection between the corresponding injection structure and the pump body 31. Thus, while supplying oxygen, carbon dioxide, and water through the at least three storage structures 29, the pump body 31 also allows for pipeline on / off control via the first and second control valves, enabling each nozzle structure to eject its corresponding test medium.

[0076] Specifically, the base 28 has a hollow structure inside for installing the storage structure 29. A support frame 30 is also provided on the base 28, and the box 1 is placed on the support frame 30 to form an installation cavity 49 through the support frame 30.

[0077] In this embodiment, both the first control valve and the second control valve are solenoid valves.

[0078] In this embodiment, there are three storage structures 29 and three nozzle structures.

[0079] Specifically, the first pipeline 44 includes three first tubular structures and a second four-way valve 42. One end of each of the three first tubular structures is connected to one of the three storage structures 29, and the other end of each of the three first tubular structures is connected to the second four-way valve 42. The last valve port of the second four-way valve 42 is connected to the inlet of the pump body 31. Each of the three first tubular structures is equipped with a first control valve.

[0080] Specifically, the second pipeline 33 includes three second tubular structures and a first four-way valve 32. One end of each of the three second tubular structures is connected to the main body 34 of the three nozzle structures, and the other end of each of the three second tubular structures is connected to the first four-way valve 32. The last valve port of the first four-way valve 32 is connected to the outlet medium end of the pump body 31. Each of the three second tubular structures is equipped with a second control valve.

[0081] Specifically, when oxygen needs to be supplied, the corresponding two first control valves and two second control valves can be closed, and only one first control valve and one second control valve on the pipeline between the storage structure 29 for storing oxygen and the nozzle structure for injecting oxygen can be opened to achieve oxygen injection. After the oxygen injection is completed, the above process is repeated to inject other test media.

[0082] Specifically, pump body 31 is a mixed-flow pump.

[0083] Specifically, a high-pressure nozzle can be selected for the gas nozzle to increase the injection speed.

[0084] Specifically, after the test piece 22 moves into the corresponding sub-test chamber, the test piece 22 does not descend directly into the electrolytic cell 25. Instead, the test piece 22 is first brought into full contact with the test medium sprayed from the nozzle structure before the driver descends into the electrolytic cell 25.

[0085] like Figure 8 and Figure 9As shown, at least a portion of the second conduit 33 is made of a flexible material. The housing 1 is also provided with a groove 37 communicating with the test chamber. The groove 37 extends along the height direction of the housing 1. Along the depth direction of the groove 37, the groove 37 includes a first sub-groove 371 and a second sub-groove 372 that communicate with each other. The first sub-groove 371 is located on the inner wall of the test chamber, and the second sub-groove 372 is located on the outer peripheral surface of the housing 1. The length of the first sub-groove 371 is less than the length of the second sub-groove 372, and the width of the first sub-groove 371 is less than the width of the second sub-groove 372. The spray assembly also includes a sliding seat, at least a portion of which is slidably disposed in the groove 37. The sliding seat includes a mounting body 38 and a sealing plate 39 disposed on the mounting body 38. Along the sliding direction of the mounting body 38, the sealing plate 39 is located on both sides of the mounting body 38. The sealing plate 39 is located within a second sub-groove 372, and at least a portion of the mounting body 38 is located within a first sub-groove 371. The sealing plate 39 is used to seal the first sub-groove 371 during the sliding of the sliding seat. The mounting body 38 is provided with a perforated portion for mounting the connecting body 34. A fourth driving device 41 is disposed on the housing 1 and is drivenly connected to the sliding seat to drive the sliding seat to slide the spray structure. Thus, the aforementioned arrangement of the groove 37 and the sliding seat allows for position adjustment of the nozzle structure, ensuring that the nozzle structure can accurately spray the test medium onto the test piece 22. Simultaneously, the sealing plate 39 seals the first sub-groove 371 to prevent leakage of the test medium and thus affect the accuracy of the test results. At the same time, the fourth driving device 41 enables automated sliding movement of the sliding seat.

[0086] Specifically, the mounting body 38 and the sealing plate 39 form a long plate-like structure, the width of which matches the width of the second sub-groove 372. That is, the long plate-like structure can completely cover the first sub-groove 371 in its width direction. As for the length of the long plate-like structure, it needs to be adjusted according to the actual movement distance. That is, it is to ensure that during the movement of the mounting body 38 in the first sub-groove 371, the long plate-like structure can also completely cover the first sub-groove 371 in its length direction. The length of the second sub-groove 372 needs to be further greater than the length of the long plate-like structure to ensure that the long plate-like structure can slide.

[0087] Specifically, the main installation body 38 has a rectangular block structure.

[0088] Specifically, the mounting body 38 is also provided with a second connecting structure 40, which is used to connect with the driving end of the fourth driving device 41. Its structure can be adjusted according to the actual situation and is not specifically limited.

[0089] In this embodiment, the rapid corrosion test device for reinforced concrete also includes a third connecting structure 27, which is used to fix the fourth driving device 41 on the housing 1. Its structure can be adjusted according to the actual situation and is not specifically limited.

[0090] Optionally, the fourth drive unit 41 is a drive cylinder, such as a pneumatic cylinder.

[0091] Optionally, a temperature sensor can be added to the corrosion chamber 45 to detect temperature, a humidity sensor can be installed in the humidification chamber 46 to detect humidity, and corresponding gas concentration sensors can be installed in the carbon dioxide corrosion chamber 47 and the oxygen corrosion chamber 48 to detect gas concentration values. The processing module of the rapid corrosion test device for reinforced concrete can be electrically connected to the humidity sensor, the gas concentration sensor and the temperature sensor to control the on / off state of the heating device 8, the cooling device, the pump body 31, the first control valve and the second control valve through the detection values ​​of each sensor, so as to realize the automatic adjustment of the above-mentioned test environment factors.

[0092] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0093] The casing of the rapid corrosion testing device for reinforced concrete has a test chamber and a through hole communicating with the test chamber. A supporting structure for a partition assembly is located inside the test chamber, while the partition structure is movably mounted on the supporting structure, with at least a portion of the partition structure passing through the through hole. Multiple partition structures are present, each with a partitioning position and a communicating position. When each partition structure is in the partitioning position, the multiple partition structures divide the test chamber into multiple sub-test chambers. When at least one partition structure is in the communicating position, a communicating hole is formed between the partition structure, at least a portion of the inner wall of the test chamber, and the supporting structure. Two sub-test chambers adjacent to this partition structure are interconnected through the communicating hole. At least one sub-test chamber is equipped with a spraying assembly for spraying the test medium into the sub-test chamber. A corrosion testing assembly is located inside the sub-test chamber, and the electrolytic cell of the corrosion testing assembly contains electrolyte. A supporting member supports the test specimen, with one end of the test specimen extending into the electrolyte for corrosion testing under energized conditions. Thus, the rapid corrosion testing device for reinforced concrete in this application achieves the separation of multiple independent sub-test chambers and their interconnection through a liftable partition structure. When the multiple independent sub-test chambers are separated, the test medium is sprayed through the spraying components in each sub-test chamber, enabling the sub-test chamber to simulate the test environment of a single environmental factor variable, ensuring that the rapid corrosion testing device for reinforced concrete can conduct corrosion tests on the test specimens under a single environmental factor variable. When the multiple independent sub-test chambers are interconnected through connecting holes, the test medium can be mixed to simulate the test environment of multiple environmental factor variables, enabling corrosion tests on the test specimens under multiple environmental factor variables. Simultaneously, the testing personnel can selectively connect the sub-test chambers according to actual needs to form multiple pre-test chambers (if they are not connected, one sub-test chamber can form one pre-test chamber). By placing corrosion test components in multiple pre-test chambers, simultaneous corrosion tests on multiple test specimens can be achieved, greatly improving the testing efficiency of the testing personnel, thereby solving the problems of insufficient test results and low testing efficiency in existing steel corrosion testing devices.

[0094] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0095] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0096] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rapid corrosion testing device for reinforced concrete, characterized in that, include: The housing (1) has a test chamber and a through hole communicating with the test chamber; The partition assembly includes a support structure (2) and a partition structure (5), wherein the support structure (2) is disposed in the test chamber, and the partition structure (5) is elliptically disposed on the support structure (2), and at least a portion of the partition structure (5) passes through the through hole; There are multiple partition structures (5), each partition structure (5) has a partition position and a connecting position. When each partition structure (5) is in the partition position, the multiple partition structures (5) divide the test chamber into multiple sub-test chambers. When at least one partition structure (5) is in the connecting position, the partition structure (5) and at least part of the inner wall of the test chamber and the support structure (2) form a connecting hole. Two sub-test chambers adjacent to the partition structure (5) are connected to each other through the connecting hole. A spraying assembly is provided in at least one of the sub-test chambers, the spraying assembly being used to spray a test medium into the sub-test chamber; A corrosion test assembly is set in the sub-test chamber. The corrosion test assembly includes a support and an electrolytic cell (25). The electrolytic cell (25) contains an electrolyte. The support is used to support the test piece (22). One end of the test piece (22) extends into the electrolyte to conduct a corrosion test under energized conditions. The separation assembly further includes: a first driving device (6) disposed on the housing (1), wherein one end of the separation structure (5) extending out of the test chamber through the through hole is driven to be connected to the first driving device (6), and the first driving device (6) is used to drive the separation structure (5) to move up and down; wherein, a first mating part is provided on the outer peripheral surface of the support structure (2), and a second mating part is provided on the separation structure (5), one of the first mating part and the second mating part is a protrusion, and the other of the first mating part and the second mating part is a recess, wherein the protrusion extends into the recess and can slide along the extension direction of the recess; Further, the support includes: a support body; a second driving device (20) disposed on the support body; and a clamping structure (21) disposed on the driving end of the second driving device (20), wherein the clamping structure (21) is used to clamp the test piece (22), and the second driving device (20) is used to drive the clamping structure (21) to drive the test piece (22) to move up and down. Further, the support body includes: a rod-shaped support member (18) having mounting holes; a mounting plate (19) detachably mounted at the mounting holes, and the second drive device (20) mounted on the mounting plate (19); wherein there are multiple mounting holes, and the multiple mounting holes are spaced apart along the extension direction of the rod-shaped support member (18), and the height of the second drive device (20) is adjusted by adjusting the mounting position of the mounting plate (19).

2. The rapid corrosion testing device for reinforced concrete according to claim 1, characterized in that, The rapid corrosion test device for reinforced concrete further includes a rotating assembly for driving the support to rotate. The support structure (2) is disposed on the top wall of the test chamber and located above the rotating assembly. The rotating assembly includes: A plate-shaped rotating end (16) is rotatably disposed in the test chamber. The plate-shaped rotating end (16) has a first insertion part (161), and the support has a second insertion part (17). One of the first insertion part (161) and the second insertion part (17) is an insertion protrusion, and the other of the first insertion part (161) and the second insertion part (17) is an insertion recess. The insertion protrusion extends into the insertion recess and is inserted into the insertion recess. There are multiple first plug-in portions (161), and the multiple first plug-in portions (161) are spaced apart along the length direction and / or width direction of the plate-shaped rotating end (16).

3. The rapid corrosion testing device for reinforced concrete according to claim 2, characterized in that, The plate-shaped rotating end (16) also has a third insertion part (162), the housing (1) also has a mounting cavity (49) located below the test chamber, and the rotating assembly further includes: The third driving device (14) is disposed in the mounting cavity (49), and the driving end of the third driving device (14) extends into the test cavity; A connector (13) is disposed on the driving end of the third driving device (14). The connector (13) has a fourth insertion part (15). One of the third insertion part (162) and the fourth insertion part (15) is an insertion protrusion, and the other of the third insertion part (162) and the fourth insertion part (15) is an insertion recess. The insertion protrusion extends into the insertion recess and engages with the insertion recess. The third driving device (14) is used to drive the connector (13) to drive the plate-shaped rotating end (16) to rotate. There are multiple fourth plug-in parts (15) and multiple plate-shaped rotating ends (16). Multiple fourth plug-in parts (15) are arranged at intervals around the rotation axis of the connector (13). Multiple fourth plug-in parts (15) are arranged in one-to-one correspondence with the third plug-in parts (162) of multiple plate-shaped rotating ends (16).

4. The rapid corrosion testing device for reinforced concrete according to claim 3, characterized in that, The multiple sub-test chambers include a corrosion chamber (45), a humidification chamber (46), a carbon dioxide erosion chamber (47), and an oxygen erosion chamber (48). Each of the humidification chamber (46), the carbon dioxide erosion chamber (47), and the oxygen erosion chamber (48) is equipped with a spraying assembly, which is used to spray at least one of water, carbon dioxide gas, or oxygen.

5. The rapid corrosion testing device for reinforced concrete according to claim 4, characterized in that, The partition structure (5) is plate-shaped, and the rapid corrosion test device for reinforced concrete also includes: A connector (3) is disposed on the bottom wall of the test chamber. The connector (3) has multiple extension arms, and each extension arm has a connector groove (4). When the partition structure (5) is in the partition position, the partition structure (5) is inserted into the connector groove (4). The connector (3) is provided with a through hole for the drive end of the third drive device (14) to pass through. The connector (13) is located between the connector (3) and the support structure (2). There are multiple extension arms, and each extension arm is provided in a one-to-one correspondence with a plurality of partition structures (5). A partition (12) is disposed between two adjacent extension arms and located in the corrosion chamber (45). The partition (12) is located below the plate-shaped rotating end (16). The partition (12) surrounds the extension arm and the bottom wall of the corrosion chamber (45) to form a cooling chamber (50). The temperature control assembly includes a refrigeration device and a heating device (8). The heating device (8) is disposed on the top wall of the corrosion chamber (45). The compressor (11) of the refrigeration device is disposed in the mounting chamber (49). The refrigeration end (9) of the refrigeration device is located in the refrigeration chamber (50).

6. The rapid corrosion testing device for reinforced concrete according to claim 4, characterized in that, The rapid corrosion test device for reinforced concrete includes a base (28), the housing (1) is mounted on the base (28), and the spraying assembly includes: The spray structure includes a connecting body (34) and a plurality of connecting pipes (35) connected to the connecting body (34), wherein a nozzle (36) is provided at one end of the connecting pipe (35) away from the connecting body (34). There are three spray structures. One spray structure is provided in each of the humidification chamber (46), the carbon dioxide erosion chamber (47) and the oxygen erosion chamber (48). The nozzle (36) of the spray structure in the humidification chamber (46) is an atomizing nozzle, and the nozzle (36) of the spray structure in the carbon dioxide erosion chamber (47) and the oxygen erosion chamber (48) is a gas nozzle. Three storage structures (29) are disposed within the base (28). The three storage structures (29) include a first storage structure, a second storage structure and a third storage structure. The first storage structure is used to store water, the second storage structure is used to store carbon dioxide gas, and the third storage structure is used to store oxygen. The pump body (31) is located in the mounting cavity (49). The three storage structures (29) are connected to the inlet end of the pump body (31) through the first pipeline (44). The first pipeline (44) is equipped with three first control valves, which are configured one-to-one with the three storage structures (29). The first control valves are used to control the connection or disconnection between the storage structure (29) and the pump body (31). The outlet end of the pump body (31) is connected to the connecting body (34) of the three spray structures through the second pipeline (33). The second pipeline (33) is equipped with three second control valves, which are configured one-to-one with the three spray structures. The second control valves are used to control the connection or disconnection between the spray structure and the pump body (31).

7. The rapid corrosion testing device for reinforced concrete according to claim 6, characterized in that, At least a portion of the second conduit (33) is made of a flexible material. The housing (1) is also provided with a groove (37) communicating with the test chamber. The groove (37) extends along the height direction of the housing (1). Along the depth direction of the groove (37), the groove (37) includes a first sub-groove (371) and a second sub-groove (372) that communicate with each other. The first sub-groove (371) is located on the inner wall of the test chamber, and the second sub-groove (372) is located on the outer peripheral surface of the housing (1). The length of the first sub-groove (371) is less than the length of the second sub-groove (372), and the width of the first sub-groove (371) is less than the width of the second sub-groove (372). The spray assembly further includes: A sliding seat, at least part of which is slidably disposed within the slide groove (37), the sliding seat comprising a mounting body (38) and a sealing plate (39) disposed on the mounting body (38), the sealing plate (39) being located on both sides of the mounting body (38) along the sliding direction of the mounting body (38); Wherein, the sealing plate (39) is located in the second sub-groove (372), at least a portion of the mounting body (38) is located in the first sub-groove (371), the sealing plate (39) is used to seal the first sub-groove (371) during the sliding of the sliding seat, and the mounting body (38) is provided with a hole-shaped part, which is used for the installation of the connecting body (34); A fourth driving device (41) is disposed on the housing (1). The fourth driving device (41) is drivenly connected to the sliding seat to drive the sliding seat to slide the spray structure.

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