A programmable high and low temperature alternating humidity and heat test chamber

Abstract

The present invention discloses a programmable high and low temperature alternating damp heat test chamber, which relates to the technical field of test chambers and includes a box body. A box door is installed on the box body. It further includes: a temperature and humidity control component for controlling the temperature and humidity inside the box body. A water accumulation pool is provided at the inner bottom of the box body. A shaking and wetting table is slidably connected inside the box body. A main pressure bladder is installed on the bottom surface of the shaking and wetting table. A vertical shaft is rotatably connected to the shaking and wetting table. A plurality of test tables are arranged below the shaking and wetting table. A distance adjustment module is installed on the shaking and wetting table, and the distance adjustment module is in transmission connection with the lowermost test table. When the present invention works, on the one hand, it can effectively clamp the product to be tested during the test, thereby ensuring the stability and safety of the product to be tested during the test. On the other hand, during the test, this test chamber can make the product to be tested be evenly heated, wetted and cooled. At the same time, when this test chamber works, it can also effectively reduce the residual rate of moisture on the product to be tested through vibration and realize the recovery of excess water vapor in the test chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of test chambers, and particularly to a programmable high and low temperature alternating damp heat test chamber. Background Art

[0002] In the prior art, a patent document with publication number CN117205974A discloses a wide-range programmable damp heat alternating test chamber, which includes a box body, a humidity adjustment device, a heating device, a refrigeration device, a camera, a temperature and humidity sensor, and a power supply component. The box body is divided into an upper cabinet and a lower cabinet by a horizontal partition. A control cabinet is arranged on the front right side of the box body. A controller is built in the control cabinet, and a control panel, a key area, and a power switch are arranged on the front side cabinet surface of the control cabinet. The above devices can realize the programmability of damp heat simulation and its coupling environment. By inputting the temperature and humidity values of any curve model within the temperature and humidity range, through the prediction of the test product structure model, the simulation of the temperature and humidity coupling environment of the test product for a long time can be realized in a short time. However, when the existing test chamber is in use, on the one hand, it is not convenient to effectively clamp the test product during the test, and on the other hand, it is not convenient to achieve uniform heating, humidification, and cooling of the test product during the test. At the same time, when the existing test chamber is working, it is not convenient to effectively reduce the residue rate of moisture on the test product and realize the recovery of excess water vapor in the test chamber. Based on this, the present invention provides a programmable high and low temperature alternating damp heat test chamber to solve the technical problems raised in the above background art. Summary of the Invention

[0003] The purpose of the present invention is to provide a programmable high and low temperature alternating damp heat test chamber, which solves the problems that when the existing test chamber is in use, on the one hand, it is not convenient to effectively clamp the test product during the test, and on the other hand, it is not convenient to achieve uniform heating, humidification, and cooling of the test product during the test. At the same time, when the existing test chamber is working, it is not convenient to effectively reduce the residue rate of moisture on the test product and realize the recovery of excess water vapor in the test chamber.

[0004] The present invention solves the above technical problems through the following technical solutions. The present invention includes:

[0005] A box body, on which a box door is installed;

[0006] A temperature and humidity control component for controlling the temperature and humidity in the box body, and a water accumulation pool is opened at the inner bottom of the box body;

[0007] The wet shaking table is slidably connected inside the box body. A main pressure bladder is installed on the bottom surface of the wet shaking table. A vertical shaft is rotatably connected to the wet shaking table. A plurality of test benches are arranged below the wet shaking table. A distance adjustment module is installed on the wet shaking table. The distance adjustment module is in transmission connection with the lowermost test bench. Limiting springs are installed between the wet shaking table and the uppermost test bench and between every two test benches. A rotating base driven by the vertical shaft is rotatably connected to the inner wall of each test bench. A group of water drainage through pipes is installed in each rotating base. A water guide cone base is installed on the bottom surface of each rotating base except the lowermost one. A secondary pressure bladder is installed on the bottom surface of the water guide cone base;

[0008] A transmission module is used to drive the wet shaking table to reciprocate vertically and drive the vertical shaft to rotate;

[0009] A pneumatic clamping module is used to control the air pressure inside the secondary pressure bladder and the main pressure bladder.

[0010] Preferably, the temperature and humidity control component includes a heater, a refrigerator and a humidifier fixed inside the box body. Two symmetrically arranged cavities are opened inside the box body. Two groups of through holes are opened inside the box body. Both cavities communicate with the inner cavity of the box body through the through holes. The heat outlet port of the heater, the cold discharge port of the refrigerator and the humidity outlet port of the humidifier are all communicated with the cavities. A group of electric heating rods are installed inside both cavities and inside the water accumulation pool.

[0011] Preferably, the temperature and humidity control component further includes a single-chip microcomputer installed on the box body. An audible and visual alarm, a temperature and humidity probe for monitoring the temperature and humidity inside the box body and a first air pressure probe for monitoring the air pressure inside the box body are respectively installed on the box body. The data ends of the audible and visual alarm, the temperature and humidity probe and the first air pressure probe are all connected to the single-chip microcomputer in terms of data.

[0012] Preferably, the temperature and humidity control component further includes a circulation pipe. The top end of the circulation pipe communicates with the inner cavity of the box body. The bottom end of the circulation pipe communicates with the water accumulation pool. A ventilation pipe is connected to the top of the circulation pipe. An axial flow exhaust fan and a ventilation valve are installed inside the ventilation pipe. A group of axial flow induced draft fans are installed inside the circulation pipe. A one-way air outlet valve is installed inside the circulation pipe.

[0013] Preferably, the distance adjustment module includes an adjustment motor installed on the top inside the box body and a distance adjustment lead screw rotatably connected to the wet shaking table. A connection groove with an open top end is fixedly opened at the top of the distance adjustment lead screw. A coupling slidably connected to the connection groove is installed at the output shaft end of the adjustment motor. The cross sections of the connection groove and the coupling are both regular polygons. The distance adjustment lead screw is in transmission connection with the lowermost test bench inside the box body. Shaft holes coaxially arranged with the distance adjustment lead screw are opened on other test benches and the wet shaking table. The radius of the shaft hole is 1.05 times the radius of the distance adjustment lead screw.

[0014] Preferably, the transmission module includes a bracket installed at the upper part inside the box body. A transmission motor is installed on the bracket. The inner wall of the bracket is rotatably connected with a hollow shaft linked to the vertical shaft. First bevel gears are installed at the output shaft end of the transmission motor and on the hollow shaft respectively, and the two first bevel gears mesh with each other. A solid shaft is rotatably connected to the bracket. A second bevel gear is installed on the solid shaft, and the second bevel gear is in transmission connection with the first bevel gear on the hollow shaft. A transmission toothed plate is installed on the top surface of the wet shaking table. A semi-toothed gear is installed on the solid shaft, and the semi-toothed gear is in transmission connection with the transmission toothed plate. A group of T-shaped sliding rods are installed on the wet shaking table, and each T-shaped sliding rod is slidably connected with the bracket. A return spring is sleeved on each T-shaped sliding rod at a position corresponding to the upper part of the bracket.

[0015] Preferably, a linkage section is provided at the top end of the vertical shaft. A first through groove with both ends open and slidably connected with the linkage section is fixedly opened inside the hollow shaft. The cross-sections of the first through groove and the linkage section are both regular polygons.

[0016] Preferably, a rotary guide sleeve is rotatably connected to the test bench. The rotary guide sleeve is in transmission connection with the rotary base through a chain belt. A second through groove with both ends open and slidably connected with the vertical shaft is fixedly opened inside the rotary guide sleeve. The cross-sections of the second through groove and the vertical shaft are both regular polygons.

[0017] Preferably, the pneumatic clamping module further includes an air pump installed on the bracket and an air guide cavity opened in the rotary base. A corrugated metal conduit is installed at the port of the air pump. A second air pressure probe is installed on the corrugated metal conduit. The data end of the second air pressure probe is connected to the data of the single-chip microcomputer. The bottom end of the corrugated metal conduit is fixedly connected to the lowermost test bench. An outer cavity is fixedly opened inside the test bench. The outer cavity and the inner cavity of the main pressure bladder are both communicated with the corrugated metal conduit. The air guide cavity is rotationally communicated with the outer cavity. The inner cavity of the sub-pressure bladder is communicated with the air guide cavity.

[0018] Preferably, a transparent window is provided on the box door. A sewage guide valve communicated with the water accumulation pool is installed on the side surface of the box body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. When the present invention works, on the one hand, it can effectively clamp the product to be tested during the test, thereby ensuring the stability and safety of the product to be tested during the test. On the other hand, this test box can uniformly heat, humidify and cool the product to be tested during the test. At the same time, when this test box works, it can also effectively reduce the residue rate of moisture on the product to be tested through vibration and realize the recovery of excess water vapor in the test box.

[0021] 2. In the present invention, when the product to be tested is placed in front of the test bench, half of the gas is first filled into the main pressure bladder and the auxiliary pressure bladder. Subsequently, the product to be tested is placed on each rotating seat. After the product is placed, through the setting of the distance adjustment module, the two rotating seats are fully approximated and the uppermost test bench is fully approximated to the wet shaking table. After the two rotating seats are fully approximated and the uppermost test bench is fully approximated to the wet shaking table, the preliminary clamping during the test of the test product is completed. After the product to be tested is preliminarily clamped, the air pump fully pressurizes the inside of the corrugated metal conduit, the main pressure bladder and the auxiliary pressure bladder, and then the clamping of the product to be tested is completed.

[0022] 3. In the present invention, after the drive motor outputs the rotational speed, through the setting of the semi-toothed gear, the return spring, the T-shaped slide bar and the drive toothed plate, the wet shaking table can reciprocate within the set stroke. Through the shaking of the wet shaking table, the test product on the rotating seat is driven to shake. By realizing the shaking effect during the test of the test product, the residual rate of moisture on the product to be tested is effectively reduced and the rapid recovery of water vapor or excess water in the box body is realized.

[0023] 4. In the present invention, when the product to be tested is being tested, multiple rotating seats rotate at the same speed, and then the product to be tested on the rotating seats is uniformly heated, cooled and wetted, so as to improve the test efficiency and test accuracy of the product to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a programmable high and low temperature alternating damp heat test chamber of the present invention;

[0025] Figure 2 is a schematic structural diagram of the heater, the refrigerator and the humidifier;

[0026] Figure 3 is Figure 1 the sectional structural diagram of;

[0027] Figure 4 is Figure 3 the partial enlarged structural diagram at A in;

[0028] Figure 5 is Figure 3 the partial enlarged structural diagram at B in;

[0029] Figure 6 is a schematic structural diagram of the wet shaking table and the test bench;

[0030] Figure 7 is Figure 6 the partial enlarged structural diagram at C in;

[0031] Figure 8 is a schematic structural diagram of the return spring and the drain pipe;

[0032] Figure 9 Schematic cross-sectional structure diagram of a ventilation pipe;

[0033] The numbers in the figure represent:

[0034] 1 - Box body; 2 - Box door; 3 - Water accumulation pool; 4 - Wet shaking table; 5 - Main pressure bladder; 6 - Vertical shaft; 7 - Test bench; 8 - Limiting spring; 9 - Rotary base; 10 - Drainage through pipe; 11 - Water guiding cone base; 12 - Auxiliary pressure bladder; 13 - Heater; 14 - Refrigerator; 15 - Humidifier; 16 - Through hole; 17 - Electric heating rod; 18 - Single-chip microcomputer; 19 - Acousto-optic alarm; 20 - Temperature and humidity probe; 21 - First air pressure probe; 22 - Circulation pipe; 23 - Ventilation pipe; 24 - Axial flow exhaust fan; 25 - Axial flow induced draft fan; 26 - Adjusting motor; 27 - Distance adjusting lead screw; 28 - Coupling; 29 - Driving motor; 30 - Hollow shaft; 31 - Solid shaft; 32 - Driving toothed plate; 33 - Half-toothed gear; 34 - T-shaped slide bar; 35 - Return spring; 36 - Rotary guide sleeve; 37 - Air pump; 38 - Air guiding cavity; 39 - Corrugated metal conduit; 40 - Transparent window; 41 - Second air pressure probe; 42 - Bracket. Specific implementation mode

[0035] The above and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0036] The present invention provides a technical solution: a programmable high and low temperature alternating damp heat test chamber, including a box body 1, a box door 2 is installed on the box body 1, a transparent window 40 is arranged on the box door 2, and a handle is also installed on the box door 2;

[0037] As Figure 1 、 Figure 2 shown, a temperature and humidity control component for controlling the temperature and humidity inside the box body 1, a water accumulation pool 3 is opened at the inner bottom of the box body 1, and a sewage guiding valve communicated with the water accumulation pool 3 is installed on the side of the box body 1. Through the setting of the sewage guiding valve, the sewage and accumulated water inside the water accumulation pool 3 are led outwards;

[0038] The temperature and humidity control component includes a heater 13, a refrigerator 14 and a humidifier 15 fixed inside the box body 1. Two symmetrically arranged cavities are opened inside the box body 1, two groups of through holes 16 are opened inside the box body 1, both cavities are communicated with the inner cavity of the box body 1 through the through holes 16, the heat output port of the heater 13, the cold discharge port of the refrigerator 14 and the humidity output port of the humidifier 15 are all communicated with the cavities, and a group of electric heating rods 17 are installed inside both cavities and inside the water accumulation pool 3;

[0039] The heater 13, the refrigerator 14 and the humidifier 15 are all common components in the prior art, and the heater 13, the refrigerator 14 and the humidifier 15 can all be customized or selected according to actual needs;

[0040] The heater 13 is used to heat the inner cavity of the box body 1, the refrigerator 14 is used to refrigerate the inner cavity of the box body 1, and the heater 13 is used to send moisture into the inner cavity of the box body 1;

[0041] The heater 13, the refrigerator 14 and the humidifier 15 are all centrally controlled by the single-chip microcomputer 18 and are turned on with set parameters, and then the rapid switching of the temperature and humidity in the inner cavity of the box body 1 is realized;

[0042] Such as Figure 1 , Figure 2 As shown, the temperature and humidity control component further includes a single-chip microcomputer 18 installed on the box body 1. An audible and visual alarm 19, a temperature and humidity probe 20 for monitoring the temperature and humidity in the inner cavity of the box body 1, and a first air pressure probe 21 for monitoring the air pressure in the inner cavity of the box body 1 are respectively installed on the box body 1. The data terminals of the audible and visual alarm 19, the temperature and humidity probe 20, and the first air pressure probe 21 are all connected to the single-chip microcomputer 18 in terms of data;

[0043] During operation, the temperature and humidity probe 20 feeds back the monitored data to the single-chip microcomputer 18 in real time. The single-chip microcomputer 18 controls the working states of the heater 13, the refrigerator 14, and the humidifier 15 according to the data feedback of the temperature and humidity probe 20;

[0044] When the temperature and humidity data in the inner cavity of the box body 1 exceed the set threshold, the single-chip microcomputer 18 controls the audible and visual alarm 19 to give an automatic audible and visual alarm;

[0045] Both the temperature and humidity probe 20 and the audible and visual alarm 19 can be customized or selected in terms of models according to actual needs;

[0046] The temperature and humidity control component further includes a circulation pipe 22. The top of the circulation pipe 22 is communicated with the inner cavity of the box body 1, the bottom of the circulation pipe 22 is communicated with the water accumulation tank 3, a ventilation pipe 23 is communicated with the top of the circulation pipe 22, an axial flow exhaust fan 24 and a ventilation valve are installed inside the ventilation pipe 23, a group of axial flow induced draft fans 25 are installed inside the circulation pipe 22, and a one-way air outlet valve is installed inside the circulation pipe 22;

[0047] When changing the heating state or the cooling state inside the box body 1, the ventilation pipe 23 is first opened to quickly restore the inside of the box body 1 to normal temperature. After the normal temperature is restored, the heating state or the cooling state inside the box body 1 can be changed;

[0048] When the box body 1 is working normally, the axial flow induced draft fan 25 inside the circulation pipe 22 is continuously turned on. After the circulation pipe 22 is turned on, the residual rate and adhesion rate of moisture on the test product are effectively reduced;

[0049] The moisture shaking table 4 is slidably connected inside the box body 1, and a sealing ring slidably connected with the box body 1 is arranged on the outer periphery of the moisture shaking table 4;

[0050] By setting the sealing ring, the sealing performance of the sliding connection between the shaking and wetting table 4 and the box body 1 is effectively guaranteed;

[0051] As Figures 3 - 9 shown, a main pressure bladder 5 is installed on the bottom surface of the shaking and wetting table 4, a vertical shaft 6 is rotatably connected to the shaking and wetting table 4, a plurality of test benches 7 are arranged below the shaking and wetting table 4, and a distance adjustment module is installed on the shaking and wetting table 4. The distance adjustment module is in transmission connection with the lowermost test bench 7;

[0052] The distance adjustment module includes an adjustment motor 26 installed on the inner top of the box body 1 and a distance adjustment lead screw 27 rotatably connected to the shaking and wetting table 4. The top of the distance adjustment lead screw 27 is fixedly provided with a coupling groove with an open top end, and a coupling shaft 28 slidably connected to the coupling groove is installed at the output shaft end of the adjustment motor 26;

[0053] The cross-sections of the coupling groove and the coupling shaft 28 are both regular polygons;

[0054] Through the regular polygon cross-section settings of the coupling groove and the coupling shaft 28, when the shaking and wetting table 4 moves up and down reciprocally, the coupling shaft 28 can continuously drive the distance adjustment lead screw 27;

[0055] The distance adjustment lead screw 27 is in transmission connection with the lowermost test bench 7 in the box body 1. Shaft holes coaxially arranged with the distance adjustment lead screw 27 are opened on other test benches 7 and the shaking and wetting table 4, and the radius of the shaft hole is 1.05 times the radius of the distance adjustment lead screw 27;

[0056] Limiting springs 8 are installed between the shaking and wetting table 4 and the uppermost test bench 7 and between two adjacent test benches 7;

[0057] By setting the distance adjustment lead screw 27, the distance between two adjacent test benches 7 and the distance between the uppermost test bench 7 and the shaking and wetting table 4 can be quickly adjusted;

[0058] By adjusting the distance between two adjacent test benches 7 and the distance between the uppermost test bench 7 and the shaking and wetting table 4, the device can be made applicable to the aging tests of multi-specification test products;

[0059] During the test, the product to be tested is placed on the rotating base 9;

[0060] A rotating base 9 driven by the vertical shaft 6 is rotatably connected to the inner wall of each test bench 7;

[0061] A rotating guide sleeve 36 is rotatably connected to the test bench 7. The rotating guide sleeve 36 is in transmission connection with the rotating base 9 through a chain belt. A second through groove with both ends open and slidably connected to the vertical shaft 6 is fixedly opened inside the rotating guide sleeve 36. The cross-sections of the second through groove and the vertical shaft 6 are both regular polygons;

[0062] Through the second through slot and the regular polygon cross-section of the vertical shaft 6, during the process of changing the position of the test bench 7, the vertical shaft 6 can continuously drive the rotating base 9;

[0063] When testing the product to be tested, multiple rotating bases 9 rotate at the same speed, and then the products to be tested on the rotating bases 9 are uniformly heated, cooled, and wetted, thereby improving the test efficiency and test accuracy of the products to be tested;

[0064] A set of water drainage through pipes 10 is installed in each rotating base 9, and a water guiding cone seat 11 is installed on the bottom surface of each rotating base 9 except the lowermost one. A secondary pressure bladder 12 is installed on the bottom surface of the water guiding cone seat 11;

[0065] Through the setting of the water drainage through pipes 10, the excess water remaining on the test product or the rotating base 9 is quickly discharged;

[0066] Through the setting of the water guiding cone seat 11, the centralized and directional discharge of the excess water on the water drainage through pipes 10 is realized;

[0067] The transmission module is used to drive the shaking and wetting table 4 to reciprocate vertically and drive the vertical shaft 6 to rotate;

[0068] The transmission module includes a bracket 42 installed in the upper part of the box body 1. A transmission motor 29 is installed on the bracket 42. A hollow shaft 30 linked with the vertical shaft 6 is rotatably connected to the inner wall of the bracket 42. First bevel gears are installed at the output shaft end of the transmission motor 29 and on the hollow shaft 30, and the two first bevel gears mesh with each other;

[0069] A linkage section is provided at the top end of the vertical shaft 6. A first through slot with both ends open and slidably connected to the linkage section is fixedly opened inside the hollow shaft 30. The cross-sections of the first through slot and the linkage section are both regular polygons;

[0070] Through the setting of the first through slot and the linkage section, when the shaking and wetting table 4 reciprocates, the central control shaft can continuously drive the vertical shaft 6;

[0071] As Figure 6 、 Figure 7 、 Figure 8 And Figure 9 As shown, a solid shaft 31 is rotatably connected to the bracket 42. A second bevel gear is installed on the solid shaft 31. The second bevel gear is in transmission connection with the first bevel gear on the hollow shaft 30. A transmission toothed plate 32 is installed on the top surface of the shaking and wetting table 4. A semi-toothed gear 33 is installed on the solid shaft 31. The semi-toothed gear 33 is in transmission connection with the transmission toothed plate 32. A set of T-shaped sliding rods 34 is installed on the shaking and wetting table 4. Each T-shaped sliding rod 34 is slidably connected to the bracket 42. A return spring 35 is sleeved on each T-shaped sliding rod 34 at a position corresponding to the upper part of the bracket 42;

[0072] After the drive motor 29 outputs the rotational speed, through the settings of the semi-tooth gear 33, the return spring 35, the T-shaped slide bar 34, and the drive toothed plate 32, the wet shaking table 4 can reciprocate within the set stroke. Through the shaking of the wet shaking table 4, the test product on the rotating base 9 is driven to shake. By realizing the shaking effect during the test of the test product, the residual rate of moisture on the product to be tested is effectively reduced, and the water vapor or excess water in the box body 1 is quickly recovered;

[0073] The pneumatic clamping module is used to control the air pressure inside the auxiliary pressure bladder 12 and the main pressure bladder 5.

[0074] The pneumatic clamping module further includes an air pump 37 installed on the bracket 42 and a gas guide cavity 38 opened in the rotating base 9. A corrugated metal conduit 39 is installed at the port of the air pump 37. A second air pressure probe 41 is installed on the corrugated metal conduit 39. The data end of the second air pressure probe 41 is connected to the data of the single-chip microcomputer 18. The bottom end of the corrugated metal conduit 39 is fixedly connected to the lowermost test bench 7. An outer cavity is fixedly opened in the test bench 7. The outer cavity and the inner cavity of the main pressure bladder 5 are both communicated with the corrugated metal conduit 39. The gas guide cavity 38 is rotationally communicated with the outer cavity. The inner cavity of the auxiliary pressure bladder 12 is communicated with the gas guide cavity 38;

[0075] Before the product to be tested is placed on the test bench 7, the inside of the main pressure bladder 5 and the auxiliary pressure bladder 12 is first filled with half of the gas. Subsequently, the product to be tested is placed on each rotating base 9. After the product is placed, through the setting of the distance adjustment module, the two rotating bases 9 are fully close to each other and the uppermost test bench 7 is fully close to the wet shaking table 4. After the two rotating bases 9 are fully close to each other and the uppermost test bench 7 is fully close to the wet shaking table 4, the preliminary clamping during the test of the test product is completed. After the product to be tested is preliminarily clamped, the air pump 37 pressurizes the inside of the corrugated metal conduit 39, the main pressure bladder 5, and the auxiliary pressure bladder 12 sufficiently, and then the clamping of the product to be tested is completed.

[0076] The above is only the preferred embodiment of the present invention, which is illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A programmable high and low temperature alternating humidity and heat test chamber, comprising a box body (1), a box door (2) is installed on the box body (1), and it is characterized in that, It further includes: A temperature and humidity control component for controlling the temperature and humidity inside the box body (1), and a water accumulation pool (3) is provided at the inner bottom of the box body (1); A wet shaking table (4) is slidably connected inside the box body (1). A main pressure bladder (5) is installed on the bottom surface of the wet shaking table (4). A vertical shaft (6) is rotatably connected to the wet shaking table (4). A plurality of test benches (7) are provided below the wet shaking table (4). A distance adjustment module is installed on the wet shaking table (4), and the distance adjustment module is in transmission connection with the lowermost test bench (7). Limiting springs (8) are installed between the wet shaking table (4) and the uppermost test bench (7) and between every two test benches (7). A rotary seat (9) driven by the vertical shaft (6) is rotatably connected to the inner wall of each test bench (7). A group of water drainage through pipes (10) are installed in each rotary seat (9). A water guiding cone seat (11) is installed on the bottom surface of each rotary seat (9) except for the lowermost one, and an auxiliary pressure bladder (12) is installed on the bottom surface of the water guiding cone seat (11); A transmission module for driving the wet shaking table (4) to reciprocate vertically and driving the vertical shaft (6) to rotate; The transmission module includes a bracket (42) installed at the upper part inside the box body (1). A transmission motor (29) is installed on the bracket (42). A hollow shaft (30) linked with the vertical shaft (6) is rotatably connected to the inner wall of the bracket (42). First bevel gears are installed at the output shaft end of the transmission motor (29) and on the hollow shaft (30), and the two first bevel gears mesh with each other. A solid shaft (31) is rotatably connected to the bracket (42). A second bevel gear is installed on the solid shaft (31), and the second bevel gear is in transmission connection with the first bevel gear on the hollow shaft (30). A transmission toothed plate (32) is installed on the top surface of the wet shaking table (4). A semi-toothed gear (33) is installed on the solid shaft (31), and the semi-toothed gear (33) is in transmission connection with the transmission toothed plate (32). A group of T-shaped sliding rods (34) are installed on the wet shaking table (4), and each T-shaped sliding rod (34) is slidably connected to the bracket (42). A return spring (35) is sleeved on each T-shaped sliding rod (34) at a position corresponding to the upper part of the bracket (42); A linkage section is provided at the top end of the vertical shaft (6). A first through groove with both ends open and slidably connected to the linkage section is fixedly opened inside the hollow shaft (30), and the cross-sections of the first through groove and the linkage section are both regular polygons; A rotary guide sleeve (36) is rotatably connected to the test bench (7), and the rotary guide sleeve (36) is in transmission connection with the rotary seat (9) through a chain belt. A second through groove with both ends open and slidably connected to the vertical shaft (6) is fixedly opened inside the rotary guide sleeve (36), and the cross-sections of the second through groove and the vertical shaft (6) are both regular polygons; A pneumatic clamping module for controlling the air pressure inside the auxiliary pressure bladder (12) and the main pressure bladder (5); The pneumatic clamping module further includes an air pump (37) mounted on the bracket (42) and a gas guiding cavity (38) opened in the rotary base (9). A corrugated metal conduit (39) is installed at the port of the air pump (37). A second air pressure probe (41) is installed on the corrugated metal conduit (39). The data end of the second air pressure probe (41) is connected to the single-chip microcomputer (18) in terms of data. The bottom end of the corrugated metal conduit (39) is fixedly connected to the lowermost test bench (7). An outer cavity is fixedly opened in the test bench (7). Both the outer cavity and the inner cavity of the main pressure bladder (5) are communicated with the corrugated metal conduit (39). The gas guiding cavity (38) is rotationally communicated with the outer cavity. The inner cavity of the auxiliary pressure bladder (12) is communicated with the gas guiding cavity (38).

2. The programmable high and low temperature alternating humidity and heat test chamber according to claim 1, wherein, The temperature and humidity control component includes a heater (13), a refrigerator (14) and a humidifier (15) fixed in the box body (1). Two symmetrically arranged cavities are opened inside the box body (1). Two groups of through holes (16) are opened inside the box body (1). Both of the two cavities are communicated with the inner cavity of the box body (1) through the through holes (16). The heat output port of the heater (13), the cold discharge port of the refrigerator (14) and the humidity output port of the humidifier (15) are all communicated with the cavities. A group of electric heating rods (17) are installed inside both of the two cavities and inside the water accumulation tank (3).

3. A programmable high and low temperature alternating humidity and heat test chamber according to claim 2, characterized in that, The temperature and humidity control component further includes a single-chip microcomputer (18) mounted on the box body (1). An audible and visual alarm (19), a temperature and humidity probe (20) for monitoring the temperature and humidity inside the cavity of the box body (1) and a first air pressure probe (21) for monitoring the air pressure inside the cavity of the box body (1) are respectively mounted on the box body (1). The data ends of the audible and visual alarm (19), the temperature and humidity probe (20) and the first air pressure probe (21) are all connected to the single-chip microcomputer (18) in terms of data.

4. A programmable high and low temperature alternating humidity and heat test chamber according to claim 3, characterized in that, The temperature and humidity control component further includes a circulation pipe (22). The top end of the circulation pipe (22) is communicated with the inner cavity of the box body (1). The bottom end of the circulation pipe (22) is communicated with the water accumulation tank (3). A ventilation pipe (23) is communicated with the top of the circulation pipe (22). An axial flow exhaust fan (24) and a ventilation valve are installed inside the ventilation pipe (23). A group of axial flow induced draft fans (25) are installed inside the circulation pipe (22). A one-way air outlet valve is installed inside the circulation pipe (22).

5. The programmable high and low temperature alternating humidity and heat test chamber according to claim 1, characterized in that, The distance adjustment module includes an adjustment motor (26) mounted on the inner top of the box body (1) and an adjustment lead screw (27) rotatably connected to the shaking and wetting table (4). The top of the adjustment lead screw (27) is fixedly provided with a coupling groove with an open top end. A coupling shaft (28) slidably connected to the coupling groove is installed at the output shaft end of the adjustment motor (26). The cross sections of both the coupling groove and the coupling shaft (28) are regular polygons. The adjustment lead screw (27) is in transmission connection with the lowermost test bench (7) inside the box body (1). Axial holes coaxial with the adjustment lead screw (27) are opened on other test benches (7) and the shaking and wetting table (4). The radius of the axial holes is 1.05 times the radius of the adjustment lead screw (27).

6. The programmable high and low temperature alternating damp heat test chamber according to claim 1, characterized in that, A transparent window (40) is provided on the box door (2), and a sewage guiding valve communicating with the water accumulation tank (3) is installed on the side of the box body (1).

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