Salt spray environment test equipment for environment test

Abstract

The invention discloses salt spray environment test equipment for environment test, and belongs to the technical field of environment test. The device comprises a test box, a spraying assembly is installed in the test box, a plurality of fans are fixedly installed in the test box, a plurality of heaters are fixedly connected in the test box, a test rack is placed in the test box, a clamping assembly is installed on the test rack, and a simulation assembly is further installed on the test rack. The simulation assembly comprises a shielding assembly, an impact assembly and a friction assembly, the shielding assembly comprises a supporting frame, and a hydraulic cylinder is fixedly installed on the supporting frame. In the circulating corrosion test process, the hydraulic cylinder can be started, atomized saline water is prevented from falling on a sample, and the shielding time can be manually set, so that a control test is formed, that is, one part of the sample is shielded, the other part of the sample is not shielded, and different shielding time can be set on different samples, so that the accuracy of the control test is improved. And test results are enriched.

Description

Technical Field

[0001] This invention relates to the field of environmental testing technology, and in particular to a salt spray environmental testing device for environmental testing. Background Technology

[0002] Salt spray environmental testing is an environmental test that uses artificially simulated salt spray conditions created by salt spray testing equipment to assess the corrosion resistance of products or materials. Its basic principle is to atomize a neutral salt solution containing (5%±1%) sodium chloride using compressed air and spray it into a sealed, temperature-controlled test chamber. The sprayed sample is subjected to corrosion inside the chamber. After continuous spraying for a period of time, the presence and degree of corrosion are observed to evaluate its corrosion resistance. Cyclic corrosion testing is a more modern and realistic testing method. It is not a simple salt spraying process but a multi-step cyclic process. Its principle simulates the day-night cycle and weather changes in the real world (such as daytime warming and drying, and nighttime cooling and condensation). This alternating wet and dry cycle generates stronger corrosive power than continuous humidification, and its failure mechanisms (such as coating blistering and creep) are much more correlated with outdoor exposure. However, in actual testing, the samples are simply placed in the test chamber for testing. There is no control test, nor is there any simulation of the samples in real life, especially the simulation of mechanical wear. In actual use, mechanical wear will damage the protective layer on the material surface (such as paint, chromium plating, passivation film), exposing fresh, more chemically reactive base material, allowing corrosive media (such as salt, water, oxygen) to penetrate directly and accelerate the corrosion process. As a result, the results obtained by traditional cyclic corrosion tests are closer to theoretical data and differ significantly from reality. Therefore, a salt spray environmental test device for environmental testing is provided. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a salt spray environmental testing device for environmental testing.

[0004] The present invention adopts the following technical solution: An environmental salt spray testing device for environmental testing includes a test chamber, a spraying assembly installed inside the test chamber, multiple fans fixedly installed inside the test chamber, multiple heaters fixedly connected inside the test chamber, a test frame placed inside the test chamber, a clamping assembly installed on the test frame, and a simulation assembly installed on the test frame. The simulation assembly includes a shielding assembly, an impact assembly, and a friction assembly. The shielding assembly includes a support frame, a hydraulic cylinder fixedly installed on the support frame, a connecting plate fixedly connected to the output end of the hydraulic cylinder, and movable frames fixedly connected to both ends of the connecting plate. Two sliders are slidably installed on the movable frames, and connecting rods are fixedly connected to the sliders. A rotating shaft is rotatably installed inside the support frame, and two shielding plates are rotatably connected to the rotating shaft. A round rod is rotatably connected to the two shielding plates, and a movable ring is sleeved on the round rod. The movable ring and the connecting rod are fixedly connected.

[0005] Preferably, the friction assembly includes a telescopic connecting cylinder fixedly installed under the movable ring, a friction spring fixedly installed on the telescopic connecting cylinder, a movable plate fixedly connected to the telescopic connecting cylinder, gauze fixedly connected to the movable plate, a corrugated groove on the movable frame, a sliding rod slidably installed on the corrugated groove, and the sliding rod and the slider fixedly connected.

[0006] Preferably, the movable plate is fixedly connected to a collecting plate, the collecting plate has a collecting groove, the movable ring is fixedly connected to a first spring, and the first spring is fixedly connected to a compression ring.

[0007] Preferably, the impact assembly includes a striking plate that slides through the support frame, a second spring fixedly connected between the striking plate and the support frame, a telescopic striking cylinder fixedly connected to the striking plate, an impact spring fixedly installed inside the telescopic striking cylinder, a cam fixedly connected to the rotating shaft, a gear fixedly connected to the rotating shaft, and a rack fixedly connected to the side wall of one of the connecting rods, with the rack and gear meshing.

[0008] Preferably, the support frame is fixedly connected to an installation block, the test frame is symmetrically provided with sliding grooves, the installation block slides through the sliding grooves, and the installation block is threadedly connected to a bolt.

[0009] Preferably, the clamping assembly includes multiple threaded holes on the side wall of the test frame, with a threaded rod threaded through the threaded holes, and a clamping plate rotatably connected to the threaded rod.

[0010] Preferably, the spraying assembly includes a saline tank fixedly installed inside the test chamber, the saline tank being fixedly equipped with a water inlet pipe that passes through the side wall of the test chamber, the saline tank being fixedly connected to multiple fixed pipes, and the fixed pipes being fixedly connected to spray heads.

[0011] The beneficial effects of this invention are: 1. First, during the cyclic corrosion test, the hydraulic cylinder can be activated, causing the baffle to rotate and move one end of the baffle above the sample, preventing the atomized salt water from falling onto the sample. During this process, the baffle time can be set manually to form a control test, i.e., part of the sample is blocked while the other part is not blocked. Different baffle times can be set for different samples, which can enrich the test results. Unlike the traditional baffle method, the baffle method used in this scheme is not in a constant state of blockage, which is more in line with the actual use situation and will make the test results closer to the actual values. 2. Secondly, during the rotation of the shield, the gauze on the lower side of the moving plate is located on the upper side of the sample and abuts against the sample, which will create friction on the sample. When the sample is rubbed with gauze, the purpose is to evaluate the wear resistance of the surface coating, texture, and printed pattern. After wear, a corrosion test is performed to see how long it takes for corrosion to start from the wear mark. Ultimately, it can simulate the wear caused by daily wiping, brushing, and relative sliding between parts, further improving the accuracy of the test results. 3. Furthermore, during the shielding process, the atomized salt water falling on the shielding plate will be automatically collected to prevent the atomized salt water on the shielding plate from falling onto the sample and affecting the normal corrosion of the sample. 4. Finally, during the rotation of the cam, the striking plate will continuously move up and down relative to the support frame. The striking plate drives the telescopic striking cylinder to move up and down. The telescopic striking cylinder and the sample come into contact, which will create an impact effect on the sample. This can evaluate the impact resistance and peel resistance of the coating or multilayer material system, and further improve the accuracy of the test results. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a salt spray environmental testing device for environmental testing proposed in this invention; Figure 2 This is a cross-sectional view of the test chamber connection in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 3 This is a schematic diagram of the internal connections of the test chamber in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 4 This is a schematic diagram showing the connection of the brine tank, fan, and heater in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 5 This is a schematic diagram of the structure of a test frame in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 6 This is a schematic diagram of the structure of a clamping component in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 7 This is a schematic diagram of the structure of a simulation component in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle; Figure 9 This is a schematic diagram of the structure of a shielding plate in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 10 This is a schematic diagram of the structure of the rotating shaft and cam in a salt spray environmental testing device for environmental testing proposed in this invention; Figure 11 for Figure 10 Enlarged view of the structure at point B; Figure 12 This is a schematic diagram of the connection between gears and racks in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 13 This is a cross-sectional view of the moving frame in a salt spray environmental testing device for environmental testing proposed in this invention. Figure 14 This is a schematic diagram of the connection of a wave tank in a salt spray environmental testing equipment for environmental testing proposed in this invention; Figure 15 This is a simplified diagram of the motion of a shielding plate in a salt spray environmental testing device for environmental testing proposed in this invention.

[0013] In the diagram: 1 Test chamber, 2 Salt water tank, 3 Fan, 4 Test frame, 5 Heater, 6 Water inlet pipe, 7 Fixed pipe, 8 Spray head, 9 Simulation component, 10 Slide groove, 11 Threaded hole, 12 Threaded rod, 13 Clamping plate, 14 Mounting block, 15 Bolt, 16 Support frame, 17 Hydraulic cylinder, 18 Rotating shaft, 19 Baffle plate, 20 Round rod, 21 Moving ring, 22 First spring, 23 Compression ring, 24 Connecting rod, 25 Telescopic connecting cylinder, 26 Moving frame, 27 Connecting plate, 28 Moving plate, 29 Collecting plate, 30 Cam, 31 Striking plate, 32 Telescopic striking cylinder, 33 Second spring, 34 Gear, 35 Rack, 36 Slider, 37 Wave groove, 38 Slide rod. Detailed Implementation

[0014] See Figures 1-15 A salt spray environmental testing device for environmental testing includes a test chamber 1. A spraying assembly is installed inside the test chamber 1. The spraying assembly includes a salt water tank 2 fixedly installed on the upper side of the test chamber 1. A water inlet pipe 6 is fixedly installed on the side wall of the salt water tank 2, passing through the side wall of the test chamber 1. Multiple fixed pipes 7 are fixedly connected to the lower side of the salt water tank 2, and a spray head 8 is fixedly connected to the lower side of each fixed pipe 7. Multiple fans 3 are fixedly installed inside the test chamber 1. Multiple heaters 5 are symmetrically fixedly connected inside the test chamber 1. A test rack 4 is placed inside the test chamber 1. A clamping assembly is installed on the test rack 4. The clamping assembly includes multiple threaded holes 11 opened on the side wall of the test rack 4. A threaded rod 12 is threaded through the threaded hole 11. A clamping plate 13 is rotatably connected to the threaded rod 12 located on one side inside the test rack 4. First, heater 5 refers to an electrical appliance that uses electrical energy to achieve a heating effect; it is a commonly used electrical component in daily life. Then, a pump is installed inside the brine tank 2, and multiple pressure and temperature sensors are fixedly installed inside the test chamber 1. During the test, a display screen is also installed on the outside of the test chamber 1. The pump, pressure sensors, and temperature sensors are electrically connected to the display screen via wires, allowing the user to view the temperature and pressure changes inside the test chamber 1 on the display screen. This enables the user to adjust the pressure of the brine sprayed into the test chamber 1 in a timely manner via the pump. Then, when the test operation is required, the sample is placed on the test rack 4, the threaded rod 12 is rotated, the threaded rod 12 drives the clamping plate 13 to move until the clamping plate 13 and the sample are in contact, thus completing the clamping and fixing operation of the sample. The pump inside the brine tank 2 is started, so that the brine inside the brine tank 2 is sprayed onto the sample through the fixed pipe 7-spray head 8, and the test operation begins. After a period of time, the heater 5 and the fan 3 are started, so that the temperature inside the test chamber 1 is increased and the humidity is decreased, so that the electrolyte solution on the sample slowly evaporates and concentrates, and corrosive salt crystals are precipitated. After a period of time, the power of the heater 5 and the fan 3 is increased, so that the inside of the test chamber 1 reaches a high humidity environment (usually 95-100%RH), so that condensation forms on the sample surface, and the salt precipitated in the previous stage is re-dissolved, and a new round of corrosion begins. Finally, the day and night cycle and weather changes in the real world are simulated (heating and drying during the day, cooling and condensation at night). This cycle of alternating dry and wet can produce stronger corrosive power than continuous wetness, and its failure mechanism is also much more correlated with outdoor exposure. The test frame 4 is also equipped with a simulation component 9, which includes a shielding component, an impact component, and a friction component. The shielding component includes a support frame 16. A hydraulic cylinder 17 is fixedly installed on the lower side of the support frame 16. A connecting plate 27 is fixedly connected to the output end of the hydraulic cylinder 17. A movable frame 26 is fixedly connected to both ends of the connecting plate 27. Two sliders 36 are slidably installed in the movable frame 26. A connecting rod 24 is fixedly connected to the lower side of the sliders 36. A rotating shaft 18 is rotatably installed in the support frame 16. Two shielding plates 19 are rotatably connected to the outer side of the rotating shaft 18. A round rod 20 is rotatably connected to the side of the two shielding plates 19 away from the rotating shaft 18. A movable ring 21 is sleeved on the outer side of the round rod 20. The movable ring 21 and the connecting rod 24 are fixedly connected. Mounting blocks 14 are fixedly connected to both sides of the support frame 16. Two sliding grooves 10 are symmetrically opened on the upper side of the test frame 4. The mounting blocks 14 slide through the sliding grooves 10. Bolts 15 are threaded through the upper side of the mounting blocks 14. First, before starting the test, select an appropriate number of support frames 16 according to the actual situation. Place the mounting block 14 into the slide groove 10 and adjust the position of the support frame 16 until it is positioned between the two samples. Secure it with bolts 15. In the initial state, the baffle 19 is not positioned above the two samples, meaning the baffle 19 will not obstruct the atomized saline solution from falling onto the samples. During the experiment, hydraulic cylinder 17 can be activated. Hydraulic cylinder 17 drives connecting plate 27 and moving frame 26 upward. Moving frame 26 drives slider 36 and connecting rod 24 upward. According to geometric knowledge, (the shielding plate 19 and part of the connecting rod 24 will form two sides of a right triangle, where shielding plate 19 is equivalent to the hypotenuse, and the length of shielding plate 19 remains unchanged). When connecting rod 24 moves upward, the length of part of connecting rod 24, i.e., the right-angled side, will shorten, which in turn will cause the other right-angled side to lengthen. The specific movement trajectory is shown in the appendix. Figure 15 Therefore, the moving frame 26 drives the connecting rod 24 to move away from the support frame 16 via the slider 36. The connecting rod 24 drives the moving ring 21 to move away from the support frame 16. The moving ring 21 drives the baffle plate 19 to rotate around the pivot 18 via the round rod 20, unfolding the baffle plate 19 and moving one end of the baffle plate 19 above the sample, preventing the atomized saline solution from falling onto the sample. After a period of time (less than the start-up time of heater 5 and fan 3), hydraulic cylinder 17 is restarted. Hydraulic cylinder 17 drives connecting plate 27 and moving frame 26 downwards. Moving frame 26 drives connecting rod 24 towards support frame 16 via slider 36. Connecting rod 24 drives moving ring 21 towards support frame 16. Moving ring 21 drives baffle 19 to rotate via round rod 20, causing baffle 19 to retract and move away from above the sample. The atomized brine will then fall normally onto the sample. In the above process, the unfolding time of the shield 19 can be controlled to form a control experiment, that is, one part of the sample is shielded while the other part of the sample is not shielded. Different shielding times can be set for different samples, which can enrich the test results. Unlike the traditional shielding method, the shielding method adopted in this scheme can be set with different shielding times and is not always in a shielded state, which is more in line with the actual use situation and will make the test results closer to the actual values.

[0015] The friction assembly includes a telescopic connecting cylinder 25 fixedly installed on the lower side of the moving ring 21, a friction spring fixedly installed inside the telescopic connecting cylinder 25, a moving plate 28 fixedly connected to the lower side of the telescopic connecting cylinder 25, gauze fixedly connected to the lower side of the moving plate 28, a wave groove 37 opened on the upper side of the moving frame 26, a slide rod 38 slidably installed inside the wave groove 37, and the slide rod 38 and the slider 36 fixedly connected. First, under the action of the friction spring, the gauze on the lower side of the moving plate 28 is always located on the upper side of the sample and abuts against the sample. During the rotation of the baffle plate 19, the moving ring 21 drives the moving plate 28 to move through the telescopic connecting cylinder 25. The gauze on the lower side of the moving plate 28 is located on the upper side of the sample and abuts against the sample, which will form friction against the sample. At the same time, under the action of the wave groove 37 and the slide bar 38, the moving ring 21 will also move relative to the round bar 20 during the movement of the moving plate 28 following the moving ring 21, which will increase the degree of friction between the gauze and the sample. When the gauze is used to rub the sample, the purpose is to evaluate the wear resistance of the surface coating, texture, and printed pattern, and to conduct corrosion tests after wear to see how long it takes for corrosion to start from the wear mark. Finally, it can simulate the wear caused by daily wiping, brushing, and relative sliding between parts, which can further improve the accuracy of the test results.

[0016] A collection plate 29 is fixedly connected to the upper side of the movable plate 28. A collection groove is opened on the upper side of the collection plate 29. A first spring 22 is fixedly connected to the side wall of the movable ring 21. A compression ring 23 is fixedly connected to the side wall of the first spring 22. During the shielding process of the shielding plate 19, after the atomized salt water falls onto the shielding plate 19, it gathers into a water flow and automatically falls into the collection tank along the edge of the shielding plate 19 over a long period of time. This forms a collection operation for the atomized salt water that has fallen onto the shielding plate 19, preventing the atomized salt water on the shielding plate 19 from falling onto the sample and affecting the normal corrosion of the sample. At the same time, during the rotation of the shielding plate 19, the moving ring 21 moves back and forth relative to the round rod 20. The moving ring 21 drives the squeezing ring 23 to move back and forth through the first spring 22. The squeezing ring 23 abuts against the shielding plate 19, causing the shielding plate 19 to shake slightly, which allows the atomized salt water on the shielding plate 19 to fall into the collection tank better.

[0017] The impact assembly includes a striking plate 31 that slides through the support frame 16. A second spring 33 is fixedly connected between the striking plate 31 and the support frame 16. Multiple telescopic striking cylinders 32 are evenly fixedly connected to the lower side of the striking plate 31. An impact spring is fixedly installed inside the telescopic striking cylinder 32. A cam 30 is fixedly connected to the outer side of the rotating shaft 18. A gear 34 is also fixedly connected to the outer side of the rotating shaft 18. A rack 35 is fixedly connected to the side wall of one of the connecting rods 24. The rack 35 and the gear 34 mesh with each other. When the baffle plate 19 rotates, the connecting rod 24 moves relative to the support frame 16. The connecting rod 24 drives the rotating shaft 18 to rotate through the rack 35 and gear 34. The rotating shaft 18 drives the cam 30 to rotate. Under the action of the second spring 33, the striking plate 31 is always in contact with the cam 30. During the rotation of the cam 30, the striking plate 31 moves up and down relative to the support frame 16. The striking plate 31 drives the telescopic striking cylinder 32 to move up and down. The telescopic striking cylinder 32 is in contact with the sample, which will create an impact effect on the sample. This can evaluate the impact resistance and peel resistance of the coating or multilayer material system, and further improve the accuracy of the test results.

[0018] In this invention, before starting the test operation, a suitable number of support frames 16 are selected according to the actual situation. The mounting block 14 is placed into the slide groove 10, and the position of the support frame 16 is adjusted. When the test operation is required, the sample is placed on the test frame 4, and the threaded rod 12 is rotated. The threaded rod 12 drives the clamping plate 13 to move until the clamping plate 13 and the sample are in contact. The pump inside the brine tank 2 is started, so that the brine inside the brine tank 2 is sprayed onto the sample through the fixed pipe 7 and the spray head 8. The test operation begins. After a period of time... After a period of time, heater 5 and fan 3 are started to raise the temperature and lower the humidity inside test chamber 1, allowing the electrolyte solution on the sample to slowly evaporate and concentrate, precipitating corrosive salt crystals. After a period of time, the power of heater 5 and fan 3 is increased to bring the test chamber 1 into a high-humidity environment (usually 95-100%RH), causing condensation to form on the sample surface, dissolving the salt precipitated in the previous stage, and starting a new round of corrosion, ultimately simulating the day-night cycle and weather changes in the real world (heating and drying during the day, cooling and condensation at night). During the experiment, hydraulic cylinder 17 is activated, causing connecting plate 27 and moving frame 26 to move upwards. Moving frame 26 causes slider 36 and connecting rod 24 to move upwards. Moving frame 26, through slider 36, causes connecting rod 24 to move away from support frame 16. Connecting rod 24 causes moving ring 21 to move away from support frame 16. Moving ring 21, through round rod 20, causes baffle plate 19 to rotate around pivot 18, unfolding baffle plate 19 and moving one end of baffle plate 19 above the sample, preventing atomized brine from falling onto the sample. After a period of time, the hydraulic cylinder 17 is restarted. The hydraulic cylinder 17 drives the connecting plate 27 and the moving frame 26 to move downwards. The moving frame 26 drives the connecting rod 24 to move closer to the support frame 16 via the slider 36. The connecting rod 24 drives the moving ring 21 to move closer to the support frame 16. The moving ring 21 drives the baffle plate 19 to rotate via the round rod 20, causing the baffle plate 19 to retract and move away from above the sample. The atomized brine will then fall normally onto the sample. During the rotation of the baffle plate 19, the moving ring 21 drives the moving plate 28 to move through the telescopic connecting cylinder 25. The gauze on the lower side of the moving plate 28 is located on the upper side of the sample and abuts against the sample, which will create friction against the sample. At the same time, under the action of the wave groove 37 and the slide bar 38, the moving ring 21 will also move relative to the round bar 20 during the movement of the moving plate 28 following the moving ring 21, which will increase the degree of friction between the gauze and the sample. During the blocking process of the baffle plate 19, after the atomized salt water falls on the baffle plate 19, during the long blocking process, the atomized salt water gathers into a water flow and automatically falls into the collection tank along the edge of the baffle plate 19, thus forming a collection operation of the atomized salt water that falls on the baffle plate 19. During the rotation of the baffle plate 19, the moving ring 21 will move back and forth relative to the round rod 20. The moving ring 21 drives the squeezing ring 23 to move back and forth through the first spring 22. The squeezing ring 23 abuts against the baffle plate 19, which will cause the baffle plate 19 to shake slightly, so that the atomized salt water on the baffle plate 19 can fall into the collection tank better. When the baffle plate 19 rotates, the connecting rod 24 moves relative to the support frame 16. The connecting rod 24 drives the rotating shaft 18 to rotate through the rack 35 and gear 34. The rotating shaft 18 drives the cam 30 to rotate. Under the action of the second spring 33, the striking plate 31 is always in contact with the cam 30. During the rotation of the cam 30, the striking plate 31 moves up and down relative to the support frame 16. The striking plate 31 drives the telescopic striking cylinder 32 to move up and down. The telescopic striking cylinder 32 is in contact with the sample, which will create an impact effect on the sample. This can evaluate the impact resistance and peel resistance of the coating or multilayer material system, and further improve the accuracy of the test results.

Claims

1. A salt spray environmental testing equipment for environmental testing, comprising a test chamber (1), characterized in that, The test chamber (1) is equipped with a spraying assembly, and multiple fans (3) are fixedly installed inside the test chamber (1). Multiple heaters (5) are fixedly connected inside the test chamber (1). A test frame (4) is placed inside the test chamber (1). A clamping assembly is installed on the test frame (4). A simulation assembly (9) is also installed on the test frame (4). The simulation assembly (9) includes a shielding assembly, an impact assembly, and a friction assembly. The shielding assembly includes a support frame (16). A hydraulic cylinder (17) is fixedly installed on the support frame (16). The hydraulic cylinder (17) outputs... A connecting plate (27) is fixedly connected to the end of the connecting plate (27), and a movable frame (26) is fixedly connected to both ends of the connecting plate (27). Two sliders (36) are slidably installed on the movable frame (26), and a connecting rod (24) is fixedly connected to the sliders (36). A rotating shaft (18) is rotatably installed inside the support frame (16), and two baffles (19) are rotatably connected to the rotating shaft (18). A round rod (20) is rotatably connected to the two baffles (19), and a movable ring (21) is sleeved on the round rod (20). The movable ring (21) and the connecting rod (24) are fixedly connected.

2. The salt spray environmental testing equipment for environmental testing according to claim 1, characterized in that, The friction assembly includes a telescopic connecting cylinder (25) fixedly installed under the moving ring (21), a friction spring fixedly installed on the telescopic connecting cylinder (25), a moving plate (28) fixedly connected to the telescopic connecting cylinder (25), gauze fixedly connected to the moving plate (28), a wave groove (37) opened on the moving frame (26), a slide rod (38) slidably installed on the wave groove (37), and the slide rod (38) and the slider (36) fixedly connected.

3. The salt spray environmental testing equipment for environmental testing according to claim 2, characterized in that, The movable plate (28) is fixedly connected to a collecting plate (29), the collecting plate (29) has a collecting groove, the movable ring (21) is fixedly connected to a first spring (22), and the first spring (22) is fixedly connected to a compression ring (23).

4. The salt spray environmental testing equipment for environmental testing according to claim 3, characterized in that, The impact assembly includes a striking plate (31) that slides through the support frame (16), a second spring (33) that is fixedly connected between the striking plate (31) and the support frame (16), a telescopic striking cylinder (32) that is fixedly connected to the striking plate (31), an impact spring that is fixedly installed inside the telescopic striking cylinder (32), a cam (30) that is fixedly connected to the rotating shaft (18), a gear (34) that is fixedly connected to the rotating shaft (18), and a rack (35) that is fixedly connected to the side wall of one of the connecting rods (24), the rack (35) and the gear (34) meshing.

5. A salt spray environmental testing device for environmental testing according to claim 1, characterized in that, The support frame (16) is fixedly connected to the mounting block (14), the test frame (4) has symmetrically opened grooves (10), the mounting block (14) slides through the groove (10), and the mounting block (14) is threaded through and connected to the bolt (15).

6. The salt spray environmental testing equipment for environmental testing according to claim 1, characterized in that, The clamping assembly includes multiple threaded holes (11) on the side wall of the test frame (4), and a threaded rod (12) is threaded through the threaded hole (11), and the threaded rod (12) is rotatably connected to the clamping plate (13).

7. The salt spray environmental testing equipment for environmental testing according to claim 1, characterized in that, The spraying assembly includes a saline tank (2) fixedly installed inside the test chamber (1), the saline tank (2) is fixedly installed with a water inlet pipe (6), the water inlet pipe (6) is fixedly inserted through the side wall of the test chamber (1), the saline tank (2) is fixedly connected to a plurality of fixed pipes (7), and the fixed pipes (7) are fixedly connected to a spray head (8).

Images