A walk-in constant temperature and humidity testing machine

Abstract

The present invention belongs to the technical field of constant temperature and humidity test devices, and discloses a walk-in constant temperature and humidity test machine, including a test chamber, the top of the inner cavity of the test chamber is movably connected with a reduction assembly, the bottom end of the reduction assembly is fixedly connected with a notched gear, the top of the inner cavity of the test chamber is fixedly connected with a coil spring barrel, the bottom end of the coil spring barrel is fixedly connected with a pulling gear, the inner cavity of the coil spring barrel is fixedly connected with a connecting rope, the bottom end of the connecting rope is fixedly connected with a scraping rod, the rear side of the inner cavity of the test chamber is fixedly connected with a guide column, and the top of the inner cavity of the test chamber is fixedly connected with a spring assembly 1. The present invention realizes the removal of water droplets in the inner cavity of the test chamber, thereby preventing the residual water droplets from affecting the accuracy of subsequent test data, and realizes the cleaning of the inner cavity of the test chamber, and also speeds up the subsequent construction of a constant temperature and humidity environment.

Description

Technical Field

[0001] The invention belongs to the technical field of constant temperature and humidity testing devices, in particular to a walk-in constant temperature and humidity testing machine. Background Art

[0002] By using a walk-in constant temperature and humidity testing machine to test materials, equipment and other objects under different temperatures and humidity conditions, performance testing can be carried out to determine whether the objects being tested meet the standards.

[0003] During the use of traditional walk-in constant temperature and humidity testing machines, due to the large range of temperature and humidity required for testing, when the temperature is low, frost will form inside the testing machine and melt to form water droplets attached to the inner wall of the testing machine. When the humidity and temperature are high, water vapor will be generated inside the testing machine, and after cooling, water droplets will remain inside the testing machine. When conducting subsequent experiments, the constant temperature and humidity module will need to spend more time to build the experimental environment. For example, after the high humidity test, there will be a large amount of water vapor on the inner wall of the testing machine. When conducting a drying test, the constant temperature and humidity module is needed to remove the water vapor inside the testing machine, which will prolong the time for the constant temperature and humidity module to build the environment.

[0004] In view of this, the present invention proposes a walk-in constant temperature and humidity testing machine to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a walk-in constant temperature and humidity testing machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a walk-in constant temperature and humidity testing machine, comprising a test chamber, the top of the inner cavity of the test chamber is movably connected with a deceleration assembly, the bottom end of the deceleration assembly is fixedly connected with a notched gear, the top of the inner cavity of the test chamber is fixedly connected with a coil spring tube, the bottom end of the coil spring tube is fixedly connected with a pulling gear, the inner cavity of the coil spring tube is fixedly connected with a connecting rope, the bottom end of the connecting rope is fixedly connected with a scraping rod, the rear side of the inner cavity of the test chamber is fixedly connected with a guide column, the top of the inner cavity of the test chamber is fixedly connected with a spring assembly 1, and the bottom end of the spring assembly 1 is fixedly connected with a collecting top plate.

[0007] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, the top of the test chamber is fixedly connected with an exhaust duct, the inner cavity of the exhaust duct is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly sleeved with fan blades, the top of the inner cavity of the test chamber is fixedly connected with a telescopic tube, the top of the collecting top plate is fixedly connected with a cylinder, the output end of the cylinder is fixedly connected with a sealing baffle, the bottom end of the telescopic tube is fixedly connected with a sealing chamber, the surface of the fan blade is movably sleeved with an anti-slip transmission belt, the left and right sides of the inner cavity of the test chamber are fixedly connected with guide rods, the surface of the guide rods is movably sleeved with a water filter plate, the bottom end of the test chamber is fixedly connected with a collecting chamber, the bottom end of the collecting chamber is fixedly connected with a control valve, and the bottom end of the scraping rod is fixedly connected with an interlaced sealing plate.

[0008] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, the top end of the collecting top plate is fixedly connected with a linkage rod, the bottom end of the linkage rod is fixedly connected with a knocking rod, the right side of the testing chamber is fixedly connected with a constant temperature and humidity module, the right side of the constant temperature and humidity module is fixedly connected with an air inlet chamber, the inner cavity of the air inlet chamber is fixedly connected with a mounting plate, the left side of the mounting plate is fixedly connected with a spring assembly 2, the left side of the spring assembly 2 is fixedly connected with a dust baffle plate, and the left side of the dust baffle plate is fixedly connected with a vibration rod.

[0009] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, the reduction assembly is composed of a meshing large gear and a small gear, the notched gear is fixedly installed at the bottom end of the large gear, there are two reduction assemblies, and the two reduction assemblies are respectively arranged at the left and right ends of the top of the inner cavity of the test chamber, and a transmission shaft is fixedly installed at the top of the small gear, and the transmission shaft is connected to the fan blade transmission through an anti-slip transmission belt.

[0010] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, the spring cylinder is composed of a spring shaft and a fixed cylinder, the spring shaft is movably sleeved in the inner cavity of the fixed cylinder, the fixed cylinder is fixedly connected to the test chamber, and the spring shaft is fixedly connected to the pulling gear and the connecting rope respectively.

[0011] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, a guide column is fixedly connected to the rear side of the inner cavity of the testing chamber, the scraping rod is movably sleeved on the surface of the guide column, the scraping rod is fitted with the inner cavity of the testing chamber, and a positioning frame is fixedly connected to the top of the inner cavity of the testing chamber.

[0012] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, the spring assembly one and the spring assembly two are both composed of a damping telescopic rod and a spring, the sealing baffle is movably sleeved in the inner cavity of the sealing chamber, and the exhaust pipe is connected to the inner cavity of the testing chamber through the telescopic pipe.

[0013] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, movable rings are fixedly installed on the left and right sides of the water filter plate, the water filter plate is movably connected to the surface of the guide rod through the movable ring, and the bottom end of the scraper rod is fixedly connected to the staggered sealing plate.

[0014] As a preferred solution of the walk-in constant temperature and humidity testing machine provided by the present invention, a support rod is fixedly connected to the right side of the testing chamber, the linkage rod is movably sleeved in the inner cavity of the support rod, and the knocking rod is a tapered round rod.

[0015] Beneficial effects of the present invention:

[0016] (1) The present invention scrapes the inner wall of the test chamber by a scraping rod, and shakes off the water droplets on the top by collecting the vibration of the top plate, thereby removing the water droplets in the inner cavity of the test chamber, thereby avoiding the residual water droplets and increasing the time for the constant temperature and humidity module to build the experimental environment.

[0017] (2) The present invention generates wind force by starting the servo motor to drive the fan blades to rotate, thereby extracting the original air in the inner cavity of the test chamber, and pulling the staggered sealing plate upward through the scraper rod. The staggered sealing plate contacts the water filter plate to form a sealing plate, and the air in the inner cavity of the test chamber is quickly squeezed out through the exhaust pipe, thereby realizing the rapid replacement of new and old air in the inner cavity of the test chamber, so that the inner cavity of the test chamber quickly reaches the environment required for the test, thereby improving the efficiency of the test.

[0018] (3) The present invention filters the air entering the inner cavity of the constant temperature and humidity module through the dust baffle plate, and then drives the knocking rod at the bottom end of the linkage rod to move up and down when the collecting top plate shakes, and then the dust baffle plate is shaken by the contact between the knocking rod and the vibration rod, and the elasticity of the spring component 2, thereby achieving the purpose of blocking the dust in the air through the dust baffle plate, and the adsorbed dust is shaken off by the shaking of the dust baffle plate, thereby preventing the dust from clogging the dust baffle plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] in:

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection of the guide rod of the structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection of the water filter plate structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection of the guide column structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection of the deceleration components of the structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection of the telescopic pipe structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection of the dust shield structure of the present invention.

[0028] In the figure: 1. test chamber; 2. reduction assembly; 3. notched gear; 4. spring cylinder; 5. pulling gear; 6. connecting rope; 7. scraper rod; 8. guide column; 9. positioning frame; 10. spring assembly one; 11. collecting top plate; 12. water filter plate; 13. collecting chamber; 14. control valve; 15. exhaust pipe; 16. servo motor; 17. fan blade; 18. telescopic tube; 19. cylinder; 20. sealing baffle; 21. sealing chamber; 22. linkage rod; 23. knocking rod; 24. vibration rod; 25. mounting plate; 26. spring assembly two; 27. dust baffle; 28. support rod; 29. ​​constant temperature and humidity module; 30. air inlet chamber; 31. anti-slip transmission belt; 32. switch door; 33. transmission shaft; 34. guide rod; 35. staggered sealing plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a walk-in constant temperature and humidity test machine includes a test chamber 1, the top of the inner cavity of the test chamber 1 is movably connected with a reduction assembly 2, the bottom end of the reduction assembly 2 is fixedly connected with a notched gear 3, the top of the inner cavity of the test chamber 1 is fixedly connected with a coil spring cylinder 4, the bottom end of the coil spring cylinder 4 is fixedly connected with a pulling gear 5, the inner cavity of the coil spring cylinder 4 is fixedly connected with a connecting rope 6, the bottom end of the connecting rope 6 is fixedly connected with a scraping rod 7, the rear side of the inner cavity of the test chamber 1 is fixedly connected with a guide column 8, the top of the inner cavity of the test chamber 1 is fixedly connected There is a spring component 10, the bottom end of the spring component 10 is fixedly connected to a collecting top plate 11, the coil spring tube 4 is composed of a coil spring shaft and a fixed tube, the coil spring shaft is movably sleeved in the inner cavity of the fixed tube, the fixed tube is fixedly connected to the test chamber 1, the coil spring shaft is respectively fixedly connected to the pulling gear 5 and the connecting rope 6, the rear side of the inner cavity of the test chamber 1 is fixedly connected to a guide column 8, a scraping rod 7 is movably sleeved on the surface of the guide column 8, the scraping rod 7 is in contact with the inner cavity of the test chamber 1, and a positioning frame 9 is fixedly connected to the top of the inner cavity of the test chamber 1.

[0032] In the embodiment, the notched gear 3 is driven to rotate by the reduction assembly 2, and then the notched gear 3 is driven to rotate the pulling gear 5. The rotation of the pulling gear 5 drives the spring shaft in the inner cavity of the spring tube 4 to rotate and pull the connecting rope 6, so that the connecting rope 6 shrinks to the inner cavity of the spring tube 4, and then drives the scraper rod 7 to move upward along the axial direction of the guide column 8 to scrape the water droplets on the inner wall of the test chamber 1. When the scraper rod 7 continues to rise, it will squeeze the collecting top plate 11, so that the spring assembly 10 shrinks and accumulates elastic potential energy, and then the notch of the notched gear 3 contacts the pulling gear 5 (in the process of the notched gear 3 rotating one circle, the spring shaft can be meshed with the pulling gear 5 to make the spring shaft rotate). The cylinder 4 drives the scraper rod 7 to rise to the maximum and squeezes the collection top plate 11), pulling the gear 5 to lose the meshing with the notched gear 3, so that the spring shaft in the inner cavity of the spring cylinder 4 loses the limit, and then drives the connecting rope 6 to be discharged from the inner cavity of the spring cylinder 4, so that the scraper rod 7 drops down. At this time, the spring assembly 10 loses pressure, thereby releasing the accumulated elastic potential energy, causing the collection top plate 11 to vibrate instantly, shaking off the water droplets cooled on the lower end surface of the collection top plate 11, and the removed water droplets enter the inner cavity of the collection bin 13 through the water filter plate 12, and then discharged through the control valve 14. After removing the water vapor, the time for the constant temperature and humidity module 29 to build the experimental environment can be effectively shortened, and the experimental efficiency can be improved. The constant temperature and humidity module 29 operates to generate the gas and moisture required for the test, so as to conduct the test, and then through the setting of the switch door 32, the inner cavity of the test bin 1 is sealed.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the top of the test chamber 1 is fixedly connected with an exhaust pipe 15, the inner cavity of the exhaust pipe 15 is fixedly connected with a servo motor 16, the output shaft of the servo motor 16 is fixedly sleeved with a fan blade 17, the top of the inner cavity of the test chamber 1 is fixedly connected with a telescopic pipe 18, the top of the collecting top plate 11 is fixedly connected with a cylinder 19, the output end of the cylinder 19 is fixedly connected with a sealing baffle 20, the bottom end of the telescopic pipe 18 is fixedly connected with a sealing chamber 21, and the surface of the fan blade 17 is movably sleeved with an anti-slip transmission belt 31. The left and right sides of the inner cavity of the test chamber 1 are fixedly connected with guide rods 34, and the surface of the guide rods 34 is movably sleeved with a water filter plate 12. The bottom end of the test chamber 1 is fixedly connected with a collecting chamber 13, and the bottom end of the collecting chamber 13 is fixedly connected with a control valve 14. The bottom end of the scraper rod 7 is fixedly connected with an interlaced sealing plate 35. Moving rings are fixedly installed on the left and right sides of the water filter plate 12. The water filter plate 12 is movably connected to the surface of the guide rod 34 through the moving ring, and the bottom end of the scraper rod 7 is fixedly connected to the interlaced sealing plate 35.

[0034] In the embodiment, before conducting the next test, the servo motor 16 is started to drive the fan blades 17 to rotate and generate wind force, and the original air in the inner cavity of the test chamber 1 is extracted. Then the constant temperature and humidity module 29 inputs the air or moisture with temperature into the inner cavity of the test chamber 1, so as to realize the rapid flow of new and old air in the inner cavity of the test chamber 1, further improving the efficiency of the test preparation stage, and when the scraper rod 7 is raised or lowered, the staggered sealing plate 35 is driven to rise. When the staggered sealing plate 35 rises, the water filter plate 12 is lifted upward. After the staggered sealing plate 35 and the water filter plate 12 are fitted together, the water holes of the water filter plate 12 are blocked, so that the inner cavity of the test chamber 1 is sealed, thereby forming the staggered sealing plate 35 and the water filter plate 12 to push the air in the inner cavity of the test chamber 1 upward, and discharge the old gas from the exhaust pipe 15, further accelerating the speed of air replacement in the inner cavity of the test chamber 1, and improving the experimental efficiency.

[0035] like Figures 1 to 7As shown, the top of the collecting top plate 11 is fixedly connected with a linkage rod 22, the bottom of the linkage rod 22 is fixedly connected with a knocking rod 23, the right side of the test chamber 1 is fixedly connected with a constant temperature and humidity module 29, the right side of the constant temperature and humidity module 29 is fixedly connected with an air inlet chamber 30, the inner cavity of the air inlet chamber 30 is fixedly connected with a mounting plate 25, the left side of the mounting plate 25 is fixedly connected with a spring assembly 26, the left side of the spring assembly 26 is fixedly connected with an ash baffle 27, the left side of the ash baffle 27 is fixedly connected with a vibration rod 24, the speed reduction assembly 2 is composed of a meshing large gear and a small gear, and the notched gear 3 is fixedly mounted on the large gear. At the bottom, there are two reduction assemblies 2, which are respectively arranged at the left and right ends of the top of the inner cavity of the test chamber 1. A transmission shaft 33 is fixedly installed on the top of the pinion, and the transmission shaft 33 is connected to the fan blade 17 through an anti-slip transmission belt 31. The spring assembly 10 and the spring assembly 2 26 are both composed of a damping telescopic rod and a spring. The sealing baffle 20 is movably sleeved in the inner cavity of the sealing chamber 21, and the exhaust pipe 15 is connected with the inner cavity of the test chamber 1 through the telescopic tube 18. The right side of the test chamber 1 is fixedly connected with a support rod 28, and the linkage rod 22 is movably sleeved in the inner cavity of the support rod 28. The knocking rod 23 is a tapered round rod.

[0036] In the embodiment, the air entering the inner cavity of the constant temperature and humidity module 29 is filtered by the dust baffle 27, and then the collecting top plate 11 moves up and down, driving the linkage rod 22 to rise and fall. When the linkage rod 22 rises and falls, it drives the knocking rod 23 to move up and down reciprocatingly. At this time, the contact between the knocking rod 23 and the vibration rod 24 causes the dust baffle 27 to be displaced, and then the elasticity of the spring assembly 26 causes the dust baffle 27 to shake, forming a dust cleaning effect. The sealing baffle 20 is movably sleeved in the inner cavity of the sealing chamber 21, so that when the air in the inner cavity of the test chamber 1 is quickly discharged, the sealing baffle 20 leaves the inner cavity of the sealing chamber 21. When the test is carried out, the cylinder 19 drives the sealing baffle 20 to move to the inner cavity of the sealing chamber 21 to block the bottom end of the telescopic tube 18, so that the inner cavity of the test chamber 1 is sealed. Through the support rod 28 on the right side of the test chamber 1, the support rod 28 can be supported by the linkage rod 22, so that the linkage rod 22 can move stably.

[0037] Working principle and use process: first, place the object to be tested in the inner cavity of the test chamber 1 and on the upper end surface of the water filter plate 12. After closing the switch door 32, build the experimental environment through the constant temperature and humidity module 29. The external air passes through the dust baffle 27 and enters the inner cavity of the constant temperature and humidity module 29. When the first object test is completed and before the second object to be tested is placed, start the servo motor 16 to drive the fan blade 17 to rotate, generate negative pressure wind force to quickly discharge the air in the inner cavity of the test chamber 1, so that the air in the inner cavity of the test chamber 1 is replaced, which is convenient for the next experiment;

[0038] When the fan blades 17 rotate, they drive the anti-skid transmission belt 31 to operate, and the anti-skid transmission belt 31 drives the reduction assembly 2 at the bottom of the transmission shaft 33 to operate, and after deceleration through the reduction assembly 2, the notched gear 3 is driven to rotate, and then the pulling gear 5 is driven to rotate through the notched gear 3, and the spring shaft of the spring tube 4 is driven to rotate through the pulling gear 5, thereby pulling the connecting rope 6 to shrink into the inner cavity of the spring tube 4, and then driving the scraping rod 7 to rise along the axial direction of the guide column 8, so as to scrape off the water droplets on the inner wall of the test chamber 1, and when the scraping rod 7 moves to the top, it squeezes the collecting top plate 11, and the collecting top plate 11 drives the spring assembly 10 to shrink and accumulate elastic potential energy, and when the notch of the notched gear 3 is located on one side of the pulling gear 5, the notched gear 3 and the pulling gear 5 lose meshing, and then through the inner cavity of the spring tube 4 The coil spring shaft is reset, so that the connecting rope 6 is discharged from the inner cavity of the coil spring tube 4, and then the scraping rod 7 is driven to descend to the lowest end of the inner cavity of the test chamber 1, and then the scraping rod 7 leaves, so that the collecting top plate 11 loses its limit, and at this time, the elastic potential energy is released by the spring assembly 10, so that the water droplets at the bottom of the collecting top plate 11 are shaken off, and when the scraping rod 7 moves, the staggered sealing plate 35 can be driven to move, and then the staggered sealing plate 35 is in contact with the water filter plate 12, so that the staggered sealing plate 35 supports the water filter plate 12, and the water filter plate 12 and the staggered sealing plate 35 form a whole, so that the inner cavity of the test chamber 1 can be sealed, and then the water filter plate 12 and the staggered sealing plate 35 move upwards, The old air in the inner cavity of the test chamber 1 can be quickly discharged, and cooperate with the fan blades 17 to quickly replace the air in the inner cavity;

[0039] The scraped water drops flow into the inner cavity of the collection bin 13 along the water filter plate 12, and the control valve 14 is started to discharge them. When the test starts, the start cylinder 19 drives the sealing baffle 20 to move to the inner cavity of the sealing bin 21, thereby blocking the top of the collection top plate 11, and the control valve 14 is closed, so that the inner cavity of the test bin 1 forms a sealed space for testing;

[0040] When the collecting top plate 11 shakes, it drives the linkage rod 22 to rise and fall, and then drives the knocking rod 23 to rise and fall through the linkage rod 22. At this time, the knocking rod 23 is in contact with the vibration rod 24, so that the dust baffle 27 on the right side of the vibration rod 24 is displaced, and through the elasticity of the spring assembly 26, the dust baffle 27 shakes, and then the dust blocked on the surface of the dust baffle 27 is shaken off.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A walk-in constant temperature and humidity testing machine, comprising a testing chamber (1), characterized in that: The top of the inner cavity of the test chamber (1) is movably connected to a deceleration component (2), the bottom of the deceleration component (2) is fixedly connected to a notched gear (3), the top of the inner cavity of the test chamber (1) is fixedly connected to a coil spring cylinder (4), the bottom of the coil spring cylinder (4) is fixedly connected to a pulling gear (5), the inner cavity of the coil spring cylinder (4) is fixedly connected to a connecting rope (6), the bottom of the connecting rope (6) is fixedly connected to a scraping rod (7), the rear side of the inner cavity of the test chamber (1) is fixedly connected to a guide column (8), the top of the inner cavity of the test chamber (1) is fixedly connected to a spring component 1 (10), and the bottom of the spring component 1 (10) is fixedly connected to a collecting top plate (11); The top of the test chamber (1) is fixedly connected to an exhaust pipe (15), the inner cavity of the exhaust pipe (15) is fixedly connected to a servo motor (16), the output shaft of the servo motor (16) is fixedly sleeved with a fan blade (17), the top of the inner cavity of the test chamber (1) is fixedly connected to a telescopic pipe (18), the top of the collecting top plate (11) is fixedly connected to a cylinder (19), the output end of the cylinder (19) is fixedly connected to a sealing baffle (20), and the bottom end of the telescopic pipe (18) is fixedly connected to a sealing chamber (21). The surface of the fan blade (17) is movably connected with an anti-skid transmission belt (31), the left and right sides of the inner cavity of the test chamber (1) are fixedly connected with guide rods (34), the surface of the guide rods (34) is movably connected with a water filter plate (12), the bottom end of the test chamber (1) is fixedly connected with a collection chamber (13), the bottom end of the collection chamber (13) is fixedly connected with a control valve (14), the bottom end of the scraping rod (7) is fixedly connected with an interlaced sealing plate (35), and the interlaced sealing plate (35) cooperates with the water filter plate (12); The reduction assembly (2) is composed of a meshing large gear and a small gear, the notched gear (3) is fixedly mounted at the bottom end of the large gear, there are two reduction assemblies (2), the two reduction assemblies (2) are respectively arranged at the left and right ends of the top end of the inner cavity of the test chamber (1), a transmission shaft (33) is fixedly mounted at the top end of the small gear, and the transmission shaft (33) is connected to the fan blade (17) through an anti-slip transmission belt (31); The notched gear (3) is driven to rotate by the reduction assembly (2), and the pulling gear (5) is then driven to rotate by the notched gear (3); When the scraper rod (7) is raised or lowered, the staggered sealing plate (35) is driven to rise, and the staggered sealing plate (35) lifts up the water filter plate (12) and blocks the water holes of the water filter plate (12), thereby sealing the inner cavity of the test chamber (1), thereby forming a situation in which the staggered sealing plate (35) and the water filter plate (12) push the air in the inner cavity of the test chamber (1) upward.

2. The walk-in constant temperature and humidity testing machine as claimed in claim 1, characterized in that: The top end of the collecting top plate (11) is fixedly connected to a linkage rod (22), the bottom end of the linkage rod (22) is fixedly connected to a knocking rod (23), the right side of the test chamber (1) is fixedly connected to a constant temperature and humidity module (29), the right side of the constant temperature and humidity module (29) is fixedly connected to an air inlet chamber (30), the inner cavity of the air inlet chamber (30) is fixedly connected to a mounting plate (25), the left side of the mounting plate (25) is fixedly connected to a spring assembly 2 (26), the left side of the spring assembly 2 (26) is fixedly connected to a dust baffle (27), and the left side of the dust baffle (27) is fixedly connected to a vibration rod (24).

3. The walk-in constant temperature and humidity testing machine as claimed in claim 1, characterized in that: The coil spring cylinder (4) is composed of a coil spring shaft and a fixed cylinder, the coil spring shaft is movably sleeved in the inner cavity of the fixed cylinder, the fixed cylinder is fixedly connected to the test chamber (1), and the coil spring shaft is respectively fixedly connected to the pulling gear (5) and the connecting rope (6).

4. The walk-in constant temperature and humidity testing machine as claimed in claim 1, characterized in that: A guide column (8) is fixedly connected to the rear side of the inner cavity of the test chamber (1); the scraping rod (7) is movably sleeved on the surface of the guide column (8); the scraping rod (7) fits the inner cavity of the test chamber (1); and a positioning frame (9) is fixedly connected to the top end of the inner cavity of the test chamber (1).

5. The walk-in constant temperature and humidity testing machine as claimed in claim 2, characterized in that: The spring assembly 1 (10) and the spring assembly 2 (26) are both composed of a damping telescopic rod and a spring. The sealing baffle (20) is movably sleeved in the inner cavity of the sealing chamber (21). The exhaust pipe (15) is connected to the inner cavity of the test chamber (1) through the telescopic pipe (18).

6. The walk-in constant temperature and humidity testing machine as claimed in claim 1, characterized in that: The left and right sides of the water filter plate (12) are fixedly mounted with movable rings, the water filter plate (12) is movably connected to the surface of the guide rod (34) via the movable rings, and the bottom end of the scraper rod (7) is fixedly connected to the staggered sealing plate (35).

7. The walk-in constant temperature and humidity testing machine as claimed in claim 2, characterized in that: A support rod (28) is fixedly connected to the right side of the test chamber (1); the linkage rod (22) is movably sleeved in the inner cavity of the support rod (28); and the knocking rod (23) is a tapered round rod.

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