Water paint corrosion resistance testing device

Abstract

The invention discloses a water paint corrosion resistance testing device which comprises a walking inclined supporting frame, a liquid accumulation base and a salt spray test sealing box piece. The invention belongs to the field of corrosion resistance detection, and particularly relates to a water paint corrosion resistance testing device. According to the walking inclined supporting frame provided by the invention, the inclination angle of the inclined main body is adjusted and controlled through the crawling length of the crawling moving part in the crawling locking base, so that the corrosion resistance condition observation of the same sample at different inclination angles under the same salt mist liquid spraying condition is realized, and the observation result is more in line with the actual application scene; and the reliability of detection data is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of corrosion resistance detection, and specifically refers to a water-based paint corrosion resistance testing device. Background Art

[0002] The salt spray experiment is mainly used to evaluate the corrosion resistance of the water-based paint layer in simulated marine, coastal and other salty and humid environments, and predict its actual service life and protection effect. During the detection process, the salt spray settles in a nearly vertical direction under the influence of gravity, and the tilt angle directly affects the salt spray coverage density on the fog-facing surface of the specimen. The specimen placed horizontally has the largest projected area and is the most severely corroded. In the standard salt spray experiment, the general recommended tilt angle is 15° - 30°. The specific angle needs to be adjusted according to the test standard (such as GB / T2423.17) or industry requirements to avoid unreliable data caused by angle deviation. Summary of the Invention

[0003] In view of the above situation, the present invention provides a water-based paint corrosion resistance testing device, and proposes a walking and tilting support frame. By adjusting the crawling length of the crawling moving part in the crawling locking base, the tilt angle of the tilting main body is controlled, so as to observe the corrosion resistance of the same specimen at different tilt angles under the same salt spray liquid spraying condition, making the observation result more in line with the actual application scenario and increasing the reliability of the detection data.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a water-based paint corrosion resistance testing device, including a walking and tilting support frame, a liquid accumulation base and a salt spray test sealing box. Multiple groups of the walking and tilting support frames are fixedly arranged on the liquid accumulation base, and the walking and tilting support frames and the liquid accumulation base are fixedly arranged in the salt spray test sealing box. The walking and tilting support frame includes a crawling walking support, a crawling locking base and an isolation housing. The crawling locking base is arranged in an interlaced manner with the crawling walking support, and the crawling locking base is fixedly arranged in the isolation housing.

[0005] Furthermore, there are multiple groups of the walking and tilting support frames. Each group of the crawling walking supports includes a tilting support part and a crawling moving part. There are two groups of the tilting support parts and they are arranged oppositely. The tilting support part is connected to the crawling moving part. The tilting support part includes a tilting rod main body and a pressing plate. One end of the two groups of the tilting support parts is fixedly connected to the pressing plate.

[0006] Preferably, the inclined rod body includes a transverse rod, a vertical rod, a positioning ring and an arc track. The positioning ring is fixedly arranged on the bottom surface of the transverse rod. The central axis of the transverse rod and the center of the positioning ring are arranged on the same vertical line. The vertical rod is fixedly arranged at the bottom of the transverse rod. The vertical rod is fixedly arranged on one side of the positioning ring. One end of the arc track is fixedly connected to the lower end of the vertical rod, and the other end of the arc track is fixedly connected to one end of the transverse rod. A walking groove is formed in the arc track, and the walking groove is arc-shaped.

[0007] As a further preference of the present invention, the bottom plate is fixedly arranged at one end of the side where the inclined rod body is fixedly connected to the vertical rod. Liquid leakage slots are formed in the bottom plate in a linear array.

[0008] Furthermore, the crawling moving part includes a sliding traction part and a crawling vehicle part. There are two sliding traction parts, which are symmetrically fixedly arranged on the top of the crawling vehicle part. The sliding traction part includes a support vertical rod and a rolling wheel. A connecting short shaft is fixedly arranged at the upper end of the support vertical rod. A shielding plate is fixedly arranged on the rod body of the support vertical rod. The shielding plate is fixedly connected to the support vertical rod at a right angle. The rolling wheel is arranged outside the connecting short shaft in a rolling manner, and the rolling wheel rolls in the walking groove. All components exposed in the salt spray liquid space in the device of the present invention are made of materials resistant to salt spray corrosion, so as to prevent the components from affecting the test results of the specimen due to long-term exposure to the corrosive environment.

[0009] Preferably, the crawling vehicle part includes a vehicle body and a special-shaped engaging block. The special-shaped engaging block is fixedly arranged at the bottom of the vehicle body. An internal motor is fixedly arranged in the vehicle body. A driving shaft is fixedly arranged at one end of the vehicle body. Driving wheels are fixedly arranged at both ends of the driving shaft. Crawling teeth are arranged in a circumferential distribution on the outer wall of the driving wheel. A fixed shaft is inserted and fixedly connected at the other end of the vehicle body. The two ends of the fixed shaft are inserted and fixed with the lower ends of the support vertical rods, and a dragging walking wheel is connected. A bottom adsorption block is fixedly arranged at the bottom of the special-shaped engaging block. There are multiple crawling vehicle parts proposed in the device of the present invention. The internal motors in each vehicle body are separately connected to an external control mechanism. In this way, the inclination angles of each walking inclined support frame are different, so that under the same environment, for the same specimen at different inclination angles, the residence time of the salt spray liquid on the surface of the specimen is different, and more realistic corrosion resistance test data can be obtained within the specified test inclination angle range (15° - 30°).

[0010] As a further preference of the present invention, the crawling locking base includes an adsorption base member and a crawling base member. There are two crawling base members, and the two crawling base members are symmetrically arranged and fixedly connected to both sides of the adsorption base member respectively. The adsorption base member is provided with a special-shaped engaging groove, and an energized adsorption plate is fixedly connected to the bottom surface of the special-shaped engaging groove. The special-shaped engaging block slides in the special-shaped engaging groove. The energized adsorption plate adsorbs the bottom adsorption block by power supply under normal conditions. The top of the crawling base member is provided with a crawling groove, and engaging teeth are fixedly connected to the bottom surface of the crawling groove in a linear array. The crawling wheel teeth are engaged with the engaging teeth. A partition baffle is fixedly connected to the top of the crawling base member. The driving wheel rolls in the crawling groove, and the inner wall of the dragging walking wheel rolls along the outer wall of the partition baffle.

[0011] Further, a moving sliding groove opening is provided at the top of the isolation housing member, and a engaging groove opening is fixedly connected to the bottom surface of the top plate of the isolation housing member. The support vertical rod moves in the moving sliding groove opening, and the shielding plate is engaged in the engaging groove opening.

[0012] As a preference, the liquid accumulation base includes a lifting plate and a placement base. The lifting plate is fixedly connected to the placement base. A liquid accumulation groove is provided on the top surface of the placement base. The lifting plate proposed in the device of the present invention is sloped around the perimeter, which is convenient for the salt spray liquid to slide down after aggregation and gather in the liquid accumulation groove of the placement base to prevent the salt spray liquid from dispersing.

[0013] As a further preference of the present invention, the salt spray test sealed box member includes a wrapping housing member, an inserted fixed rod shaft, a salt spray liquid spraying assembly, and a transparent observation window. The inserted fixed rod shaft is horizontally inserted and fixed in the wrapping housing member. The inserted fixed rod shaft is inserted into the positioning ring. The salt spray liquid spraying assembly is fixedly connected to the bottom surface of the top plate of the wrapping housing member. There are multiple groups of the salt spray liquid spraying assemblies. The salt spray liquid spraying assembly includes a fine spray head and an installation connection strip. There are multiple fine spray heads, and the multiple fine spray heads are fixedly connected to the bottom of the installation connection strip. The transparent observation window is fixedly connected to one side of the wrapping housing member.

[0014] In the salt spray test sealed box member proposed in the device of the present invention, real-time monitoring device systems such as a humidity detection device and a constant temperature detection device are added according to the test requirements to meet the environmental monitoring requirements during the test. And the salt spray liquid spraying assembly proposed in the device of the present invention is connected to an external specific sodium chloride solution device to spray sodium chloride solution into the salt spray test sealed box member regularly and at fixed points to meet the actual experimental requirements.

[0015] The beneficial effects achieved by the present invention with the above structure are as follows: (1) In the device of the present invention, the components exposed in the salt spray liquid space are all made of materials resistant to salt spray corrosion, avoiding the influence of the components on the test results of the specimen due to long-term exposure to the corrosive environment.

[0016] (2) There are multiple crawler components proposed in the device of the present invention. The built-in motors in each vehicle body are separately connected to the external control mechanism. In this way, the tilt angles of each walking tilt support frame are controlled differently, so that under the same environment, for the same specimen at different tilt angles, the residence time of the salt spray liquid on the surface of the specimen is different, and more realistic corrosion resistance test data can be obtained within the specified test tilt angle range (15° - 30°).

[0017] (3) The periphery of the lifting plate proposed in the device of the present invention is in a slope shape, which facilitates the sliding of the salt spray liquid after aggregation and the gathering in the liquid accumulation tank of the installation base, preventing the dispersion of the salt spray liquid.

[0018] (4) In the salt spray test sealing box component proposed in the device of the present invention, real-time monitoring device systems such as humidity detection devices and constant temperature detection devices are added according to test requirements to meet the environmental monitoring requirements during the test. And the salt spray liquid spraying component proposed in the device of the present invention is connected to an external specific sodium chloride solution device to spray sodium chloride solution into the salt spray test sealing box component at fixed times and fixed points to meet the actual experimental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Front view of a waterborne paint corrosion resistance test device proposed by the present invention; Figure 2 Elevation view of a waterborne paint corrosion resistance test device proposed by the present invention; Figure 3 For Figure 1 Cross-sectional view along the cutting line A - A in Figure 4 Internal structure elevation schematic diagram of a waterborne paint corrosion resistance test device proposed by the present invention; Figure 5 Elevation schematic diagram of the structure of the walking tilt support frame proposed by the present invention; Figure 6 Elevation schematic diagram of the structure of the crawling walking bracket and the crawling locking base proposed by the present invention Figure 1 ; Figure 7 Elevation schematic diagram of the structure of the crawling walking bracket proposed by the present invention; Figure 8 Elevation schematic diagram of the structure of the crawling locking base proposed by the present invention; Figure 9 Side view of the structure of the walking tilt support frame proposed by the present invention; Figure 10 For Figure 9 Cross-sectional view along the cutting line B - B in Figure 11 ForFigure 10 Cross-sectional view along cutting plane C-C in Figure 12 is Figure 11 Partial enlarged view at position I in

[0020] Wherein, 1, walking inclined support frame, 2, liquid accumulation base, 3, salt spray test sealing box part, 4, crawling walking support, 5, crawling locking base, 6, isolation housing part, 7, inclined support part, 8, crawling moving part, 9, adsorption base part, 10, crawling base part, 11, moving sliding groove, 12, engaging groove, 13, inclined rod main body, 14, resisting plate, 15, sliding traction part, 16, crawling vehicle part, 17, special-shaped engaging groove, 18, crawling groove, 19, partition baffle, 20, transverse rod, 21, vertical rod, 22, positioning ring, 23, arc track, 24, walking groove, 25, liquid leakage groove, 26, supporting vertical rod, 27, rolling wheel, 28, connecting short shaft, 29, shielding baffle, 30, vehicle body, 31, special-shaped engaging block, 32, built-in motor, 33, driving shaft, 34, driving wheel, 35, dragging walking wheel, 36, crawling wheel teeth, 37, bottom adsorption block, 38, energized adsorption plate, 39, engaging teeth, 40, lifting plate, 41, placement base, 42, liquid accumulation tank, 43, wrapping housing part, 44, inserted fixing rod shaft, 45, salt spray liquid spraying assembly, 46, transparent observation window, 47, fine nozzle, 48, installation connection strip.

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0024] As Figures 1 - 12As shown in the figure, the present invention provides a water-based paint corrosion resistance test device, which includes a walking inclined support frame 1, a liquid accumulation base 2, and a salt spray test sealing box part 3. Multiple groups of the walking inclined support frame 1 are fixedly arranged on the liquid accumulation base 2. The walking inclined support frame 1 and the liquid accumulation base 2 are fixedly arranged inside the salt spray test sealing box part 3. The walking inclined support frame 1 includes a crawling walking support 4, a crawling locking base 5, and an isolation housing part 6. The crawling locking base 5 is arranged in an interpenetrating manner with the crawling walking support 4, and the crawling locking base 5 is fixedly arranged inside the isolation housing part 6.

[0025] Among them, multiple groups of the walking inclined support frame 1 are provided. Each group of the crawling walking support 4 includes an inclined support member 7 and a crawling moving member 8. Two groups of the inclined support members 7 are provided and arranged oppositely. The inclined support member 7 is connected to the crawling moving member 8. The inclined support member 7 includes an inclined rod main body 13 and a resisting plate 14. One end of the two groups of inclined support members 7 is fixedly connected to the resisting plate 14.

[0026] The inclined rod main body 13 includes a transverse rod 20, a vertical rod 21, a positioning ring 22, and an arc track 23. The positioning ring 22 is fixedly arranged on the bottom surface of the transverse rod 20. The central axis of the transverse rod 20 and the center of the positioning ring 22 are located on the same vertical line. The vertical rod 21 is fixedly arranged at the bottom of the transverse rod 20. The vertical rod 21 is fixedly arranged on one side of the positioning ring 22. One end of the arc track 23 is fixedly connected to the lower end of the vertical rod 21, and the other end of the arc track 23 is fixedly connected to one end of the transverse rod 20. A walking groove 24 is formed inside the arc track 23, and the walking groove 24 is arc-shaped.

[0027] The resisting plate 14 is fixedly arranged at the end of the side where the inclined rod main body 13 is fixedly connected to the vertical rod 21. Leakage liquid trough openings 25 are formed through the resisting plate 14 in a linear array.

[0028] The crawling moving member 8 includes a sliding traction member 15 and a crawling vehicle member 16. Two sliding traction members 15 are provided and symmetrically fixedly arranged on the top of the crawling vehicle member 16. The sliding traction member 15 includes a supporting vertical rod 26 and a rolling wheel 27. A connecting short shaft 28 is fixedly arranged at the upper end of the supporting vertical rod 26. A shielding plate 29 is fixedly arranged on the rod body of the supporting vertical rod 26. The shielding plate 29 is fixedly connected to the supporting vertical rod 26 in a perpendicular manner. The rolling wheel 27 is rotatably arranged outside the connecting short shaft 28, and the rolling wheel 27 is rotatably arranged in the walking groove 24.

[0029] The crawler part 16 includes a vehicle body 30 and a special-shaped engaging block 31. The special-shaped engaging block 31 is fixedly connected to the bottom of the vehicle body 30. An internal motor 32 is fixedly installed inside the vehicle body 30. One end of the vehicle body 30 is fixedly connected with a drive shaft 33. Drive wheels 34 are fixedly connected to both ends of the drive shaft 33. Crawling wheel teeth 36 are arranged in a circumferential distribution on the outer wall of the drive wheels 34. The other end of the vehicle body 30 is inserted and fixedly connected with a fixed shaft 49. The two ends of the fixed shaft 49 are inserted and fixed with the lower ends of the support vertical rods 26, and a dragging walking wheel 35 is connected. A bottom adsorption block 37 is fixedly connected to the bottom of the special-shaped engaging block 31.

[0030] The crawling locking base 5 includes an adsorption base part 9 and a crawling base part 10. There are two crawling base parts 10. The two crawling base parts 10 are symmetrically arranged and are respectively fixedly connected to both sides of the adsorption base part 9. A special-shaped engaging groove 17 is opened on the adsorption base part 9. An energized adsorption plate 38 is fixedly connected to the bottom surface of the special-shaped engaging groove 17. The special-shaped engaging block 31 slides in the special-shaped engaging groove 17. The energized adsorption plate 38 adsorbs the bottom adsorption block 37 by power supply under normal conditions. A crawling groove 18 is opened on the top of the crawling base part 10. Engaging teeth 39 are fixedly connected to the bottom surface of the crawling groove 18 in a linear array. The crawling wheel teeth 36 are engaged with the engaging teeth 39. A partition baffle 19 is fixedly connected to the top of the crawling base part 10. The drive wheel 34 rolls in the crawling groove 18. The inner wall of the dragging walking wheel 35 rolls along the outer wall of the partition baffle 19.

[0031] A moving sliding groove opening 11 is opened on the top of the isolation housing part 6. A engaging groove opening 12 is fixedly connected to the bottom surface of the top plate of the isolation housing part 6. The support vertical rod 26 moves in the moving sliding groove opening 11. The shielding plate 29 is engaged in the engaging groove opening 12.

[0032] The liquid accumulation base 2 includes a lifting plate 40 and a placement base 41. The lifting plate 40 is fixedly connected to the placement base 41. A liquid accumulation groove 42 is opened on the top surface of the placement base 41.

[0033] The salt spray test sealing box part 3 includes a wrapping housing part 43, an inserted and fixed rod shaft 44, a salt spray liquid spraying assembly 45 and a transparent observation window 46. The inserted and fixed rod shaft 44 is horizontally inserted and fixed in the wrapping housing part 43. The inserted and fixed rod shaft 44 is inserted into the positioning ring 22. The salt spray liquid spraying assembly 45 is fixedly installed on the bottom surface of the top plate of the wrapping housing part 43. There are multiple groups of salt spray liquid spraying assemblies 45. The salt spray liquid spraying assembly 45 includes a fine spray head 47 and an installation connection strip 48. There are multiple fine spray heads 47. The multiple fine spray heads 47 are fixedly connected to the bottom of the installation connection strip 48. The transparent observation window 46 is fixedly connected to one side of the wrapping housing part 43.

[0034] During actual use, the device of the present invention installs detection system devices such as a humidity monitoring device and a constant temperature detection device in the salt spray test sealed box member 3 according to actual requirements, and real-time monitors the environment inside the salt spray test sealed box member 3. Multiple walking inclined support frames 1 are installed on the liquid accumulation base 2 according to the detection requirements. During the installation process, it is necessary to pay attention to the mutual avoidance between the walking inclined support frames 1 to prevent the salt spray liquid on the surface of the specimen placed on the walking inclined support frame 1 from gathering and dripping onto another specimen, or due to the mutual shielding between the specimens, resulting in uneven salt spray. The salt spray liquid spraying assembly 45 is connected to an external sodium chloride pumping device, and sodium chloride solution is delivered to the salt spray test sealed box member regularly and quantitatively. The external controller is signal-connected to the built-in motor 32 in the vehicle body 30 of each walking inclined support frame 1, and the multiple walking inclined support frames 1 are numbered in sequence to facilitate subsequent recording of specimen changes.

[0035] According to the test purpose, after the pre-treated metal plate is sprayed and air-dried, the surface paint of the same batch of specimens is scratched and damaged or the paint surface is kept intact. The test plate is placed on the crawling walking bracket 4, and one end of the specimen is placed against the side of the abutment plate 14. Through the external controller, the energized adsorption plate 38 in the special-shaped engaging groove 17 is synchronously controlled to stop adsorbing the bottom adsorption block 37 at the bottom of the special-shaped engaging block 31, and the built-in motor 32 runs, so that the drive shaft 33 electrically connected to the built-in motor 32 rotates, driving the drive wheel 34 to rotate. The crawling wheel teeth 36 mesh with the engaging teeth 39, and the drive wheel 34 rolls in the crawling groove 18 of the crawling base member 10, driving the vehicle body 30 to move. The fixed shaft and the dragging walking wheel 35 walk on the top surface of the crawling base member 10 as the vehicle body 30 moves. During the walking process, the inner wall of the dragging walking wheel 35 abuts against the partition baffle 19 to limit the walking path of the vehicle body 30 and ensure the stable and straight running of the vehicle body 30. As the vehicle body 30 runs, the support vertical rod 26 moves, and the shielding baffle 29 moves with the support vertical rod 26. The shielding baffle 29 slides through the engaging groove opening 12, and the shielding baffle 29 shields the moving sliding groove opening 11. The rolling wheel 27 moves in the walking groove 24 of the arc track 23. Due to the height limitation of the support vertical rod 26 itself, the arc track 23 is traction-dragged, so that the cross bar 20 tilts at an angle with the center of the fixed rod shaft 44 inserted in the positioning ring 22 as the fixed point, causing the specimen placed on the inclined support member 7 to tilt at an angle until the specified angle. The external controller is used to control the built-in motor 32 to stop running, and the energized adsorption plate 38 resumes the adsorption state to adsorb the moving engaging block, fixing the position of the vehicle body 30 in the crawling locking base 5. In this way, the inclination angle of the inclined support member 7 in each walking inclined support member 7 is fixed. After ensuring the inclination angle of each specimen, the salt spray test sealing box member 3 is run, and the sodium chloride solution is sprayed into the salt spray test sealing box member 3 regularly and quantitatively through the fine nozzles 47. After the salt spray accumulates on the surface of the specimen and slides off, it falls into the liquid accumulation tank 42 of the placement base 41 through the sloping side of the lifting plate 40. The observer observes the surface condition of the specimen through the transparent observation window 46 to check whether there is rust, bubbles or peeling. If it is a scribing test, observe the corrosion spreading condition.

[0036] The above is the overall working process of the present invention, and this step can be repeated when using it next time.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] The above describes the present invention and its embodiments. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, if those of ordinary skill in the art are inspired by it and, without departing from the spirit of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A water-based paint corrosion resistance testing device, characterized in that: The invention comprises a walking tilting support frame (1), a liquid accumulation base (2) and a salt spray test sealing box (3), wherein the walking tilting support frame (1) is provided with a plurality of groups fixedly connected to the liquid accumulation base (2), the walking tilting support frame (1) and the liquid accumulation base (2) are fixedly connected in the salt spray test sealing box (3), the walking tilting support frame (1) comprises a crawling walking frame (4), a crawling locking base (5) and an isolation shell (6), the crawling locking base (5) and the crawling walking frame (4) are arranged in an interlaced manner, and the crawling locking base (5) is fixedly connected in the isolation shell (6).

2. A water-based paint corrosion resistance testing device according to claim 1, characterized in that: The walking tilting support frame (1) is provided with a plurality of groups, each group of the crawling walking support (4) comprises a tilting support member (7) and a crawling moving member (8), the tilting support member (7) is provided with two groups and is arranged opposite to each other, the tilting support member (7) is connected to the crawling moving member (8), the tilting support member (7) comprises a tilting rod body (13) and a butt plate (14), and one end portion of the two groups of the tilting support members (7) is fixedly connected to the butt plate (14).

3. A water-based paint corrosion resistance testing device according to claim 2, characterized in that: The tilt rod body (13) comprises a transverse rod (20), a vertical rod (21), a positioning ring (22) and an arc track (23); the positioning ring (22) is fixedly connected to the bottom surface of the transverse rod (20); the central axis of the transverse rod (20) and the center of the positioning ring (22) are arranged on the same vertical line; the vertical rod (21) is fixedly connected to the bottom of the transverse rod (20); the vertical rod (21) is fixedly connected to one side of the positioning ring (22); one end of the arc track (23) is fixedly connected to the lower end of the vertical rod (21); the other end of the arc track (23) is fixedly connected to one end of the transverse rod (20); a running groove (24) is provided in the arc track (23); the running groove (24) is arc-shaped.

4. A water-based paint corrosion resistance testing device according to claim 3, characterized in that: The abutment plate (14) is fixedly connected to one end portion of the inclined rod body (13) and the vertical rod (21) at one side thereof, and liquid leakage slots (25) are formed in a linear array through the abutment plate (14).

5. A water-based paint corrosion resistance testing device according to claim 4, characterized in that: The crawling moving member (8) comprises a sliding traction member (15) and a crawling vehicle member (16); the sliding traction member (15) is provided with two members and is symmetrically fixedly arranged on the top of the crawling vehicle member (16); the sliding traction member (15) comprises a supporting vertical rod (26) and a rolling wheel (27); the upper end of the supporting vertical rod (26) is fixedly provided with a connecting short shaft (28); the rod body of the supporting vertical rod (26) is fixedly provided with a shielding plate (29); the shielding plate (29) is fixedly arranged on the supporting vertical rod (26) in a vertical shape; the rolling wheel (27) is rollingly arranged outside the connecting short shaft (28); and the rolling wheel (27) is rollingly arranged in the walking groove (24).

6. A water-based paint corrosion resistance testing device according to claim 5, characterized in that: The crawling vehicle component (16) comprises a vehicle body (30) and a special-shaped snap-fit ​​block (31), wherein the special-shaped snap-fit ​​block (31) is fixedly arranged at the bottom of the vehicle body (30), a built-in motor (32) is fixedly arranged in the vehicle body (30), a driving shaft (33) is fixedly arranged at one end of the vehicle body (30), driving wheels (34) are fixedly arranged at both ends of the driving shaft (33), and crawling wheel teeth (36) are arranged and distributed in a circular shape on the outer wall of the driving wheel (34), a fixed shaft (49) is inserted and fixedly arranged at the other end of the vehicle body (30), and both ends of the fixed shaft (49) are inserted and fixedly arranged with the lower end of the supporting vertical rod (26), and are connected to a towing walking wheel (35), and a bottom adsorption block (37) is fixedly arranged at the bottom of the special-shaped snap-fit ​​block (31).

7. A water-based paint corrosion resistance testing device according to claim 6, characterized in that: The crawling locking base (5) comprises an adsorption base member (9) and a crawling base member (10), wherein the crawling base member (10) is provided with two members, the two crawling base members (10) are symmetrical and are respectively fixedly connected to two sides of the adsorption base member (9), the adsorption base member (9) is provided with a special-shaped snap-fit ​​groove (17), the bottom surface of the special-shaped snap-fit ​​groove (17) is fixedly provided with an electrified adsorption plate (38), the special-shaped snap-fit ​​block (31) slides in the special-shaped snap-fit ​​groove (17), and the electrified adsorption plate (38) is fixedly connected to the bottom surface of the special-shaped snap-fit ​​groove (17). ) under normal conditions, the bottom adsorption block (37) is energized to be adsorbed, a crawling groove (18) is provided on the top of the crawling base member (10), a locking tooth (39) is fixedly provided in a linear array on the bottom surface of the crawling groove (18), the crawling wheel teeth (36) are meshed with the locking teeth (39), a partition baffle (19) is fixedly provided on the top of the crawling base member (10), the driving wheel (34) rolls in the crawling groove (18), and the inner wall of the dragging walking wheel (35) rolls in contact with the outer wall of the partition baffle (19).

8. A water-based paint corrosion resistance testing device according to claim 7, characterized in that: The top of the isolation shell member (6) is provided with a movable sliding slot (11), the bottom surface of the top plate of the isolation shell member (6) is fixedly provided with a snap-fitting slot (12), the supporting vertical rod (26) moves in the movable sliding slot (11), and the shielding plate (29) is snap-fitted in the snap-fitting slot (12).

9. A water-based paint corrosion resistance testing device according to claim 8, characterized in that: The liquid accumulation base (2) comprises a lifting plate (40) and a placement base (41); the lifting plate (40) is fixedly connected to the placement base (41); and a liquid accumulation groove (42) is provided on the top surface of the placement base (41).

10. A water-based paint corrosion resistance testing device according to claim 9, characterized in that: The salt spray test sealing box (3) comprises a wrapping shell (43), an interlaced fixed rod shaft (44), a salt spray liquid spraying assembly (45) and a transparent observation window (46), wherein the interlaced fixed rod shaft (44) is interlaced and fixed in the wrapping shell (43) in a transverse manner, and the interlaced fixed rod shaft (44) is inserted in a positioning ring (22), and the salt spray liquid spraying assembly (45) is fixedly connected to the bottom surface of the top plate of the wrapping shell (43), and the salt spray liquid spraying assembly (45) is provided with a plurality of groups, and the salt spray liquid spraying assembly (45) comprises a fine spray head (47) and a mounting connection strip (48), wherein a plurality of the fine spray heads (47) are provided, and the plurality of the fine spray heads (47) are fixedly connected to the bottom of the mounting connection strip (48), and the transparent observation window (46) is fixedly connected to one side of the wrapping shell (43).

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