Programmable high-low temperature alternating damp heat test box

Abstract

The invention discloses a programmable high-low temperature alternating humidity and heat test box, and relates to the technical field of test boxes, the programmable high-low temperature alternating humidity and heat test box comprises a box body, a box door is mounted on the box body, the programmable high-low temperature alternating humidity and heat test box further comprises a temperature and humidity control part used for controlling temperature and humidity in the box body, a water accumulation pool is arranged at the inner bottom of the box body, a shaking table is slidably connected in the box body, and a main pressure bag is mounted on the bottom surface of the shaking table; a vertical shaft is rotationally connected to the shaking table, a plurality of test beds are arranged below the shaking table, and a distance adjusting module is mounted on the shaking table and is in transmission connection with the lowest test bed. When the test box works, on one hand, a to-be-tested product can be effectively clamped during a test, so that the stability and safety of the to-be-tested product during the test are ensured, on the other hand, the to-be-tested product can be uniformly heated, wetted and cooled during the test, and meanwhile, when the test box works, the test efficiency is improved. And the residual rate of moisture on the to-be-tested product can be effectively reduced through vibration, and recovery of redundant water vapor in the test box is realized.

Description

Technical Field

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

[0002] In the prior art, the patent document with publication number CN117205974A discloses a wide range of programmable wet heat alternating test chamber, including a chamber, a humidity control device, a heating device, a refrigeration device, a camera, a temperature and humidity sensor and a power supply assembly. The chamber 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 chamber, and a controller is built in the control cabinet. A control panel, a key area and a power switch are arranged on the front cabinet surface of the control cabinet. The above device can realize the programmability of wet heat simulation and its coupled environment, and input the temperature and humidity values ​​of any curve model within the temperature and humidity range. By predicting the structural model of the test product, the simulation of the temperature and humidity coupling environment of the test product for a longer period of time can be realized in a short time. However, when the existing test chamber is used, on the one hand, it is not convenient to achieve effective clamping of the test product during the test, and on the other hand, it is not convenient to achieve uniform heating, wetting 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 residual rate of moisture on the test product and to 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 humidity and heat test chamber to solve the technical problems raised in the above background technology. Summary of the invention

[0003] The purpose of the present invention is to provide a programmable high and low temperature alternating humidity and heat test chamber, which solves the problem that when the existing test chamber is used, on the one hand, it is not convenient to achieve effective clamping of the product to be tested during the test, and on the other hand, it is not convenient to achieve uniform heating, humidity and cooling of the product to be tested during the test. At the same time, when the existing test chamber is working, it is not convenient to effectively reduce the residual rate of moisture on the product to be tested and to recover the excess water vapor in the test chamber.

[0004] The present invention solves the above technical problems through the following technical solutions, which include:

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

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

[0007] A shaking wet table is slidably connected in the box body, a main pressure bag is installed on the bottom surface of the shaking wet table, a vertical shaft is rotatably connected to the shaking wet table, a plurality of test benches are arranged below the shaking wet table, a distance adjustment module is installed on the shaking wet table, the distance adjustment module is transmission-connected to the lowest test bench, a limit spring is installed between the shaking wet table and the highest test bench and between every two test benches, a rotating seat driven by the vertical shaft is rotatably connected to the inner wall of each test bench, a group of drainage pipes is installed in each rotating seat, a water guide cone seat is installed on the bottom surface of each rotating seat other than the lowest one, and a secondary pressure bag is installed on the bottom surface of each of the rotating seats;

[0008] The transmission module is used to drive the shaking table to move back and forth in the vertical direction and drive the vertical axis to rotate;

[0009] The pneumatic clamping module is used to control the air pressure inside the auxiliary pressure bag and the main pressure bag.

[0010] Preferably, the temperature and humidity control component includes a heater, a refrigerator and a humidifier fixed in a box body, the interior of the box body is provided with two symmetrically arranged cavities, the interior of the box body is provided with two groups of through holes, the two cavities are connected with the inner cavity of the box body through the through holes, the heat outlet port of the heater, the cold outlet port of the refrigerator and the moisture outlet port of the humidifier are all connected with the cavity, and a group of electric heating rods are installed inside the two cavities and the inside of the water pool.

[0011] Preferably, the temperature and humidity control component also includes a single-chip microcomputer installed on the box body, and the box body is respectively equipped with an audible and visual alarm, a temperature and humidity probe for monitoring the temperature and humidity in the inner cavity of the box body, and a first air pressure probe for monitoring the air pressure in the inner cavity of 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 data.

[0012] Preferably, the temperature and humidity control component also includes a circulation pipe, the top end of the circulation pipe is connected to the inner cavity of the box, the bottom end of the circulation pipe is connected to the water pool, the top of the circulation pipe is connected to a ventilation 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, and a one-way air outlet valve is installed inside the circulation pipe.

[0013] Preferably, the pitch adjusting module includes an adjusting motor installed on the top of the box body and a pitch adjusting screw rotatably connected to the wet shaking table, the top of the pitch adjusting screw is fixedly provided with a connecting groove with a top opening, the output shaft end of the adjusting motor is provided with a coupling shaft slidably connected to the connecting groove, the cross-sections of the connecting groove and the coupling shaft are both regular polygons, the pitch adjusting screw is transmission-connected to the test bench at the bottom of the box body, and the other test benches and the wet shaking table are provided with an axial hole coaxially arranged with the pitch adjusting screw, and the radius of the axial hole is 1.05 times the radius of the pitch adjusting screw.

[0014] Preferably, the transmission module includes a bracket installed on the upper part of 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, the output shaft end of the transmission motor and the hollow shaft are both installed with a first bevel gear, the two first bevel gears are meshed with each other, the bracket is rotatably connected with a real shaft, the real shaft is installed with a second bevel gear, the second bevel gear is transmission connected with the first bevel gear on the hollow shaft, a transmission tooth plate is installed on the top surface of the shaking table, a half-tooth gear is installed on the real shaft, the half-tooth gear is transmission connected with the transmission tooth plate, a group of T-shaped sliding bars are installed on the shaking table, each of the T-shaped sliding bars is slidably connected to the bracket, and a return spring is sleeved on each of the T-shaped sliding bars and at the position corresponding to the top of the bracket.

[0015] Preferably, a linkage section is provided at the top of the vertical shaft, a first through slot with openings at both ends fixedly provided inside the hollow shaft and slidably connected to the linkage section, and the cross sections of the first through slot and the linkage section are both regular polygons.

[0016] Preferably, a rotary guide sleeve is rotatably connected to the test bench, and the rotary guide sleeve is transmission-connected to the rotary seat through a chain belt. A second through groove with openings at both ends and slidably connected to the vertical axis is fixedly provided inside the rotary guide sleeve, and the cross-sections of the second through groove and the vertical axis are both regular polygons.

[0017] Preferably, the pneumatic clamping module also includes an air pump installed on the bracket and an air guide cavity opened in the rotary seat, the port of the air pump is installed with a corrugated metal conduit, 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 test bench at the bottom, an outer cavity is fixedly opened in the test bench, the outer cavity and the inner cavity of the main pressure bag are connected to the corrugated metal conduit, the air guide cavity is rotationally connected to the outer cavity, and the inner cavity of the auxiliary pressure bag is connected to the air guide cavity.

[0018] Preferably, a transparent window is provided on the box door, and a sewage guide valve connected to the water pool is installed on the side of the box body.

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

[0020] 1. When the present invention is working, on the one hand, it can realize effective clamping of 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, the test box can realize uniform heating, wetting and cooling of the product to be tested during the test. At the same time, when the test box is working, 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 box.

[0021] 2. In the present invention, before the product to be tested is placed on the test bench, half of the gas is first filled into the main pressure bag and the auxiliary pressure bag. Then, the product to be tested is placed on each rotary seat. After the product is placed, the distance adjustment module is set so that the two rotary seats are sufficiently close to each other and the uppermost test bench is sufficiently close to the wet shaking table. After the two rotary seats are sufficiently close to each other and the uppermost test bench is sufficiently close to the wet shaking table, the initial clamping of the test product is completed. After the product to be tested is initially clamped, the air pump pressurizes the corrugated metal conduit, the main pressure bag and the auxiliary pressure bag with sufficient pressure, thereby completing the clamping of the product to be tested.

[0022] 3. In the present invention, after the transmission motor outputs the rotation speed, the half-tooth gear, return spring, T-shaped slide bar and transmission gear plate are set, so that the shaking table can reciprocate within the set stroke. The shaking of the shaking table drives the test product on the rotating seat to shake. The shaking effect is achieved during the test of the test product, so as to effectively reduce the residual rate of moisture on the product to be tested and realize the rapid recovery of water vapor or excess water in the box.

[0023] 4. In the present invention, when the product to be tested is tested, multiple rotating seats rotate at the same speed, so that the product to be tested on the rotating seat is evenly heated, cooled and moistened, thereby improving the test efficiency and test accuracy of the product to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 for Figure 1 A schematic cross-sectional structure diagram of ;

[0027] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 5 for Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

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

[0030] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at C in the middle;

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

[0032] Fig. 9 It is a schematic diagram of the cross-sectional structure of the ventilation pipe;

[0033] The numbers in the figure represent:

[0034] 1-box; 2-box door; 3-water pool; 4-wetting table; 5-main pressure bag; 6-vertical axis; 7-test bench; 8-limit spring; 9-swivel seat; 10-drain pipe; 11-water guide cone seat; 12-secondary pressure bag; 13-heater; 14-refrigerator; 15-humidifier; 16-through hole; 17-electric heating rod; 18-single chip microcomputer; 19-sound and light alarm; 20-temperature and humidity probe; 21-first air pressure probe; 22-circulation pipe; 2 3-ventilation duct; 24-axial flow exhaust fan; 25-axial flow induced draft fan; 26-adjusting motor; 27-pitch adjusting screw rod; 28-coupling; 29-transmission motor; 30-hollow shaft; 31-real shaft; 32-transmission gear plate; 33-half-tooth gear; 34-T-shaped slide bar; 35-return spring; 36-rotary guide sleeve; 37-air pump; 38-air guide cavity; 39-corrugated metal conduit; 40-transparent window; 41-second air pressure probe; 42-bracket. DETAILED DESCRIPTION

[0035] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

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

[0037] like Figure 1 , Figure 2 As shown, the temperature and humidity control component is used for controlling the temperature and humidity in the box body 1. A water pool 3 is provided at the inner bottom of the box body 1. A sewage guide valve connected to the water pool 3 is installed on the side of the box body 1. Through the setting of the sewage guide valve, the sewage and accumulated water inside the water pool 3 are guided outward;

[0038] 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 provided inside the box body 1. Two groups of through holes 16 are provided inside the box body 1. Both cavities are connected to the inner cavity of the box body 1 through the through holes 16. The heat outlet port of the heater 13, the cold outlet port of the refrigerator 14 and the moisture outlet port of the humidifier 15 are all connected to the cavity. A group of electric heating rods 17 are installed inside the two cavities and inside the water pool 3.

[0039] The heater 13, refrigerator 14 and humidifier 15 are all common components in the prior art, and the heater 13, refrigerator 14 and humidifier 15 can 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 cool 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, refrigerator 14 and humidifier 15 are all controlled by the single chip microcomputer 18 and turned on with set parameters, thereby realizing the rapid switching of the temperature and humidity in the inner cavity of the box 1;

[0042] like Figure 1 , Figure 2 As shown, the temperature and humidity control component also includes a single-chip microcomputer 18 installed on the box body 1, and the box body 1 is respectively equipped with an audible and visual alarm 19, a temperature and humidity probe 20 for monitoring the temperature and humidity of the inner cavity of the box body 1, and a first air pressure probe 21 for monitoring the air pressure of the inner cavity of 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;

[0043] When working, the temperature and humidity probe 20 feeds back the monitored data to the single chip microcomputer 18 in real time, and the single chip microcomputer 18 controls the working state 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 of the inner cavity of the box body 1 exceeds the set threshold, the single chip computer 18 controls the sound and light alarm 19 to automatically sound and light alarm;

[0045] The temperature and humidity probe 20 and the sound and light alarm 19 can be customized or selected according to actual needs;

[0046] The temperature and humidity control component also includes a circulation pipe 22, the top of which is connected to the inner cavity of the box body 1, the bottom of which is connected to the water pool 3, the top of which is connected to a ventilation pipe 23, 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 the heating state or cooling state in the box body 1 is changed, the ventilation pipe 23 is first opened to quickly restore the interior of the box body 1 to normal temperature. After the normal temperature is restored, the heating state or cooling state in the box body 1 can be changed;

[0048] When the box 1 is working normally, the axial flow induced draft fan 25 in 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 shaking wet table 4 is slidably connected to the box body 1, and a sealing ring slidably connected to the box body 1 is arranged on the outer periphery of the shaking wet table 4;

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

[0051] like Figure 3-9 As shown, a main pressure bag 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 tables 7 are arranged below the wet shaking table 4, a distance adjustment module is installed on the wet shaking table 4, and the distance adjustment module is transmission-connected to the lowest test table 7;

[0052] The pitch adjustment module includes an adjustment motor 26 installed on the top of the box body 1 and a pitch adjustment screw rod 27 rotatably connected to the shaking wet table 4. The top of the pitch adjustment screw rod 27 is fixed with a coupling groove with a top opening, and the output shaft end of the adjustment motor 26 is installed with a coupling shaft 28 slidably connected to the coupling groove;

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

[0054] By setting the regular polygonal cross section of the coupling groove and the coupling shaft 28, the coupling shaft 28 can continuously drive the pitch adjusting screw rod 27 when the shaking wet table 4 moves up and down;

[0055] The pitch-adjusting screw 27 is connected to the bottom test bench 7 in the box 1. The other test benches 7 and the shaking wet bench 4 are provided with an axial hole coaxially arranged with the pitch-adjusting screw 27. The radius of the axial hole is 1.05 times the radius of the pitch-adjusting screw 27.

[0056] Limiting springs 8 are installed between the shaking wet table 4 and the uppermost test table 7 and between two test tables 7;

[0057] By setting the distance adjusting screw rod 27, the distance between two test benches 7 and the distance between the top test bench 7 and the shaking wet bench 4 can be quickly adjusted;

[0058] By adjusting the distance between the test benches 7 and the distance between the top test bench 7 and the shaking wet bench 4, the device can be applied to the aging test of test products of multiple specifications.

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

[0060] The inner wall of each test bench 7 is rotatably connected to a rotating seat 9 driven by a vertical shaft 6;

[0061] A rotary guide sleeve 36 is rotatably connected to the test bench 7, and the rotary guide sleeve 36 is transmission-connected to the rotary seat 9 through a chain belt. A second through slot with openings at both ends and slidably connected to the vertical shaft 6 is fixedly provided inside the rotary guide sleeve 36, and the cross sections of the second through slot and the vertical shaft 6 are both regular polygons;

[0062] The second through slot and the regular polygonal cross section of the vertical shaft 6 are arranged so that the vertical shaft 6 can continuously drive the rotating seat 9 during the process of changing the position of the test bench 7;

[0063] When the product to be tested is tested, the multiple rotating seats 9 rotate at the same speed, so that the product to be tested on the rotating seats 9 is evenly heated, cooled and moistened, thereby improving the test efficiency and test accuracy of the product to be tested;

[0064] A set of drain pipes 10 are installed in each rotary seat 9, and a water guide cone seat 11 is installed on the bottom surface of each rotary seat 9 other than the bottommost one, and an auxiliary pressure bag 12 is installed on the bottom surface of the water guide cone seat 11;

[0065] By setting the drain pipe 10, the excess water remaining on the test product or the rotary seat 9 can be quickly discharged;

[0066] By setting the water guide cone seat 11, the excess water on the drain pipe 10 can be discharged in a centralized and directional manner;

[0067] The transmission module is used to drive the shaking table 4 to move back and forth in the vertical direction and drive the vertical shaft 6 to rotate;

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

[0069] A linkage section is disposed at the top of the vertical shaft 6, and a first through slot with openings at both ends fixedly provided inside the hollow shaft 30 and slidably connected to the linkage section, and the cross sections of the first through slot and the linkage section are both regular polygons;

[0070] By setting the first through groove and the linkage section, the central control shaft can continuously drive the vertical shaft 6 when the shaking wet table 4 moves back and forth;

[0071] like Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, a real shaft 31 is rotatably connected to the bracket 42, a second bevel gear is installed on the real shaft 31, and the second bevel gear is transmission-connected to the first bevel gear on the hollow shaft 30, a transmission tooth plate 32 is installed on the top surface of the shaking wet table 4, a half-tooth gear 33 is installed on the real shaft 31, and the half-tooth gear 33 is transmission-connected to the transmission tooth plate 32, and a group of T-shaped slide bars 34 are installed on the shaking wet table 4, each T-shaped slide bar 34 is slidably connected to the bracket 42, and a return spring 35 is sleeved on each T-shaped slide bar 34 and at a position corresponding to the top of the bracket 42;

[0072] After the transmission motor 29 outputs the rotation speed, the half-tooth gear 33, the return spring 35, the T-shaped slide bar 34 and the transmission gear plate 32 are arranged, so that the shaking table 4 can shake back and forth within the set stroke. The shaking of the shaking table 4 drives the test product on the rotary seat 9 to shake. The shaking effect is achieved during the test of the test product, so as to effectively reduce the residual rate of moisture on the test product and realize the rapid recovery of water vapor or excess water in the box 1;

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

[0074] The pneumatic clamping module also includes an air pump 37 mounted on a bracket 42 and an air guide cavity 38 opened in a rotary seat 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 computer 18. The bottom end of the corrugated metal conduit 39 is fixedly connected to the bottom 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 bag 5 are both connected to the corrugated metal conduit 39. The air guide cavity 38 is connected to the outer cavity in rotation. The inner cavity of the auxiliary pressure bag 12 is connected to the air guide cavity 38.

[0075] When the product to be tested is placed in front of the test bench 7, the interior of the main pressure bag 5 and the auxiliary pressure bag 12 are first filled with half of the gas, and then the product to be tested is placed on each rotary seat 9. After the product is placed, the distance adjustment module is set so that the two rotary seats 9 are fully close to each other and the top test bench 7 is fully close to the shaking wet table 4. After the two rotary seats 9 are fully close to each other and the top test bench 7 is fully close to the shaking wet table 4, the preliminary clamping of the test product is completed. After the product to be tested is preliminarily clamped, the air pump 37 pressurizes the corrugated metal conduit 39, the main pressure bag 5 and the auxiliary pressure bag 12 with sufficient pressure, and then completes the clamping of the product to be tested.

[0076] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A programmable high and low temperature alternating humidity and heat test chamber, It is characterized in that include: A box body (1), wherein a box door (2) is installed on the box body (1); A temperature and humidity control component, used for controlling the temperature and humidity in the box (1), wherein a water pool (3) is provided at the inner bottom of the box (1); A shaking wet table (4) is slidably connected in the box body (1), a main pressure bag (5) is installed on the bottom surface of the shaking wet table (4), a vertical shaft (6) is rotatably connected to the shaking wet table (4), a plurality of test benches (7) are arranged below the shaking wet table (4), a distance adjustment module is installed on the shaking wet table (4), the distance adjustment module is transmission-connected to the lowest test bench (7), a limit spring (8) is installed between the shaking wet table (4) and the highest test bench (7) and between two test benches (7), the inner wall of each test bench (7) is rotatably connected to a rotary seat (9) driven by the vertical shaft (6), each rotary seat (9) is installed with a group of drainage pipes (10), the bottom surface of each rotary seat (9) other than the lowest is installed with a water guide cone seat (11), and the bottom surface of the water guide cone seat (11) is installed with an auxiliary pressure bag (12); A transmission module, used for driving the shaking table (4) to move back and forth in the vertical direction and driving the vertical shaft (6) to rotate; The pneumatic clamping module is used to control the air pressure inside the auxiliary pressure bag (12) and the main pressure bag (5).

2. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 1, It is characterized in that The temperature and humidity control component comprises a heater (13), a refrigerator (14) and a humidifier (15) fixed in a box body (1); the box body (1) is provided with two symmetrically arranged cavities; the box body (1) is provided with two groups of through holes (16); the two cavities are communicated with the inner cavity of the box body (1) through the through holes (16); the heat outlet port of the heater (13), the cold outlet port of the refrigerator (14) and the moisture outlet port of the humidifier (15) are all communicated with the cavities; a group of electric heating rods (17) are installed in the two cavities and in the water pool (3).

3. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 2, It is characterized in that The temperature and humidity control component also includes a single-chip microcomputer (18) installed on the box body (1); the box body (1) is respectively equipped with an audible and visual alarm (19), a temperature and humidity probe (20) for monitoring the temperature and humidity of the inner cavity of the box body (1), and a first air pressure probe (21) for monitoring the air pressure of the inner cavity of 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 data-connected to the single-chip microcomputer (18).

4. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 3, It is characterized in that The temperature and humidity control component also includes a circulation pipe (22), the top end of the circulation pipe (22) is connected to the inner cavity of the box body (1), the bottom end of the circulation pipe (22) is connected to the water pool (3), the top of the circulation pipe (22) is connected to a ventilation pipe (23), 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).

5. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 1, It is characterized in that The pitch adjustment module comprises an adjusting motor (26) installed at the top of the box body (1) and a pitch adjustment screw (27) rotatably connected to the shaking wet table (4); a coupling groove with a top opening is fixedly opened at the top of the pitch adjustment screw (27); a coupling shaft (28) slidably connected to the coupling groove is installed at the output shaft end of the adjusting motor (26); the cross sections of the coupling groove and the coupling shaft (28) are both regular polygons; the pitch adjustment screw (27) is transmission-connected to the test bench (7) at the bottom of the box body (1); and shaft holes coaxially arranged with the pitch adjustment screw (27) are opened on the other test benches (7) and the shaking wet table (4); and the radius of the shaft hole is 1.05 times the radius of the pitch adjustment screw (27).

6. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 5, It is characterized in that The transmission module comprises a bracket (42) mounted on the upper part of the housing (1), a transmission motor (29) being mounted on the bracket (42), an inner wall of the bracket (42) being rotatably connected to a hollow shaft (30) linked to the vertical shaft (6), a first bevel gear being mounted on the output shaft end of the transmission motor (29) and the hollow shaft (30), the two first bevel gears being meshed with each other, a real shaft (31) being rotatably connected to the bracket (42), a second bevel gear being mounted on the real shaft (31), and the second bevel gear The first bevel gear on the hollow shaft (30) is transmission-connected, a transmission tooth plate (32) is installed on the top surface of the shaking wet platform (4), a half-tooth gear (33) is installed on the real shaft (31), and the half-tooth gear (33) is transmission-connected with the transmission tooth plate (32), and a group of T-shaped slide bars (34) are installed on the shaking wet platform (4), each of the T-shaped slide bars (34) is slidably connected with the bracket (42), and a return spring (35) is sleeved on each of the T-shaped slide bars (34) and at a position corresponding to the upper side of the bracket (42).

7. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 6, It is characterized in that A linkage section is arranged at the top end of the vertical shaft (6), and a first through slot with openings at both ends fixedly provided inside the hollow shaft (30) and slidably connected to the linkage section, wherein the cross sections of the first through slot and the linkage section are both regular polygons.

8. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 7, It is characterized in that A rotary guide sleeve (36) is rotatably connected to the test bench (7), and the rotary guide sleeve (36) is transmission-connected to the rotary seat (9) via a chain belt. A second through slot with openings at both ends and slidably connected to the vertical shaft (6) is fixedly provided inside the rotary guide sleeve (36), and the cross-sections of the second through slot and the vertical shaft (6) are both regular polygons.

9. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 8, It is characterized in that The pneumatic clamping module also includes an air pump (37) installed on the bracket (42) and an air guide cavity (38) opened in the rotary seat (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); a data end of the second air pressure probe (41) is connected to the data of the single-chip computer (18); the bottom end of the corrugated metal conduit (39) is fixedly connected to the test bench (7) at the bottom; an outer cavity is fixedly opened in the test bench (7); the outer cavity and the inner cavity of the main pressure bag (5) are both connected to the corrugated metal conduit (39); the air guide cavity (38) is connected to the outer cavity in rotation; and the inner cavity of the auxiliary pressure bag (12) is connected to the air guide cavity (38).

10. A programmable high and low temperature alternating humidity and heat test chamber as claimed in claim 1, It is characterized in that The box door (2) is provided with a transparent window (40), and the side of the box body (1) is provided with a sewage guide valve connected to the water pool (3).

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