Environmental simulation four-comprehensive test box

Abstract

The invention relates to the technical field of test boxes, in particular to an environment simulation four-comprehensive test box which comprises a box body, a main body structure, a mounting structure, a lifting structure, an exhibition structure, a fixing structure and a lifting table. Due to the arrangement of the mounting structure, the box body can be conveniently moved on the lifting table, meanwhile, the box body can be quickly mounted and positioned, and the mounting efficiency of lifting or forking the box body is improved; the flexible connection device is installed through the lifting structure, manual feeding is avoided, the installation convenience of the flexible connection device is improved, and meanwhile the sealing performance between the flexible connection device and the box body is improved; the carrying table slides out of the test cavity through the exhibition structure, so that a workpiece needing to be tested can be conveniently fixed on the carrying table, the loading difficulty of the test workpiece is reduced, and the loading efficiency is improved; the center fixing table of the flexible connection device is fixed through the fixing structure, shaking of the center fixing table during feeding is avoided, meanwhile, after feeding is completed, fixing is conducted through the fixing structure and the fixing frame, and the stability of the carrying table is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of test chambers, and more specifically, to an environmental simulation four-in-one test chamber. Background Art

[0002] The environmental simulation four-in-one chamber is a high-end reliability test device that can simultaneously simulate four environmental factors: temperature, humidity, air pressure (vacuum / positive pressure), and vibration. It is mainly used in fields such as aerospace, electronics, and the automotive industry to verify the performance stability of products under the combined action of complex environments.

[0003] However, traditional test chambers are installed by hoisting or forklifting and positioning. After being hoisted onto the lifting frame, manual adjustment of the position is required repeatedly to align the connecting seat at the bottom of the test chamber with the screw holes on the lifting table. Due to the large volume and weight of the test chamber, the position adjustment of the test chamber is time-consuming, and the positioning accuracy is insufficient, resulting in low installation efficiency. The installation of the soft connection device of traditional test chambers requires manual alignment of the interfaces between the chamber body and the vibration table. During manual feeding, it is difficult to accurately control the position and pressure of the soft connection device, which may cause deformation of the gasket or misalignment of the metal frame, affecting the airtightness of the test chamber. The carrier platform of traditional test chambers is hidden inside the chamber. Operators need to reach into the chamber to fix the workpiece. The operating space is limited and the efficiency is low. The carrier platform lacks a convenient mechanism for pulling out and pushing in. During the process of fixing the workpiece, it is easy to shake, resulting in positioning deviation. Especially for heavy or precision workpieces, manual adjustment may cause knocking and damage. The central fixing platform of the soft connection device of traditional test chambers lacks reliable fixation during workpiece feeding and is prone to shaking due to operation and touch, affecting the feeding accuracy. Traditional fixing methods (such as bolt tightening) require point-by-point installation, which is time-consuming and laborious, resulting in low feeding efficiency. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides an environmental simulation four-in-one test chamber.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an environmental simulation four-in-one test chamber, including a chamber body, a main structure provided on the chamber body, an installation structure provided at the bottom of the chamber body, a lifting structure provided on the chamber body, an exhibition structure provided on the main structure, a fixing structure provided on the main structure, a lifting table provided at the bottom of the chamber body, and a slide rail provided at the bottom of the lifting table. The installation structure includes a connecting seat and a fixed seat. The bottom end of the box body is fixedly connected with the connecting seat, and the lifting platform is fixedly connected with the fixed seat. The connecting seat and the fixed seat are fixedly connected by bolts. A lifting plate is slidably connected inside the fixed seat. A plurality of universal balls are rotatably connected to the lifting plate in a rectangular array. The bottom end of the fixed seat is fixedly connected with a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is fixedly connected with the lifting plate. A plurality of through holes corresponding to the positions of the universal balls are provided on the upper surface of the fixed seat in a rectangular array. A first rack is fixedly connected to each of the four corners of the lifting plate, and a gear is rotatably connected to each of the four corners of the fixed seat. Four second racks are slidably connected to the fixed seat. The first racks, the second racks and the gears are meshed. Four guide rods are fixedly connected to the fixed seat, a positioning column is fixedly connected to the second rack, and four positioning sleeves are fixedly connected to the connecting seat. The positioning column is inserted into the positioning sleeve.

[0006] Specifically, four guide columns are fixedly connected to the bottom end of the lifting plate, and the guide columns are slidably connected with the fixed seat.

[0007] Specifically, the main body structure includes a test chamber and a control chamber. The internal space of the box body is divided into a test chamber, a control chamber and an electrical chamber. The bottom end of the box body where the test chamber is located is provided with a soft connection device through a lifting structure. A vibration table is provided on the open space at the bottom end of the soft connection device. The output end of the vibration table is fixedly connected with a fixed table in the center of the soft connection device. An exhibition structure is installed on the fixed table in the center of the soft connection device, and a carrier platform is provided on the exhibition structure.

[0008] Specifically, the lifting structure includes a hydraulic rod and a lifting plate. Two hydraulic rods are fixedly connected to both sides of the box body. The telescopic end of the hydraulic rod is fixedly connected with the lifting plate. A plurality of positioning blocks are fixedly connected to the lifting plate. A plurality of positioning grooves are provided on the metal frame of the soft connection device. The positioning blocks are inserted into the positioning grooves.

[0009] Specifically, a sealing gasket is fixedly connected to the metal frame of the soft connection device. A sealing groove is provided on the box body. The sealing gasket is inserted into the sealing groove.

[0010] Specifically, the exhibition structure includes a connecting cylinder and a fixed frame. The connecting cylinder is fixedly connected to the fixed table in the center of the soft connection device. The top end of the connecting cylinder is fixedly connected with the fixed frame. A U-shaped sliding frame is fixedly connected to the fixed frame. A carrier platform is slidably connected to the sliding frame. Rollers are rotatably connected to the four corners of the carrier platform, and the rollers are in rolling connection with the sliding frame.

[0011] Specifically, two fixing blocks with trapezoidal cross-sections are fixedly connected to the carrier table. Two mounting blocks are fixedly connected to the carriage. An installation shaft is rotatably connected to one of the mounting blocks. A retaining bar is fixedly connected to the installation shaft. The retaining bar is inserted into the other mounting block. Two abutting blocks with trapezoidal cross-sections are fixedly connected to the retaining bar. The abutting blocks abut against the fixing blocks. A screw rod is threadedly connected to the mounting block. The screw rod is threadedly connected to the retaining bar.

[0012] Specifically, the fixing structure includes a mounting seat and a rotating shaft. Four mounting seats are fixedly connected to the central fixing table of the flexible connection device. A rotating shaft is rotatably connected between two adjacent mounting seats. Two fixing bars are fixedly connected to the rotating shaft. Two limiting bars are respectively provided at the bottom end of the fixing frame and on the box body. Two slots are provided on each limiting bar. The fixing bars are inserted into the slots.

[0013] Specifically, two fixing sleeves are respectively fixedly connected to the bottom end of the fixing frame and the box body. A push rod with a T-shaped cross-section is slidably connected to the fixing sleeve. Two connecting bars are fixedly connected to the push rod. The connecting bars are slidably connected to the limiting bars. A limiting rod is fixedly connected to the connecting bar. A limiting hole is provided at the end of the fixing bar. The limiting rod is inserted into the limiting hole.

[0014] Specifically, two mounting sleeves are respectively fixedly connected to the bottom end of the fixing frame and the box body. The push rod is slidably connected to the mounting sleeve. A spring is fixedly connected between the push rod and the mounting sleeve.

[0015] The beneficial effects of the present invention are as follows: (1) For the environmental simulation four-in-one test chamber of the present invention, an installation structure is provided on the box body. The setting of the installation structure facilitates the movement of the box body on the lifting platform and can quickly install and position the box body, improving the installation efficiency of hoisting or forklifting the box body.

[0016] (2) For the environmental simulation four-in-one test chamber of the present invention, a lifting structure is provided on the box body. By installing the flexible connection device through the lifting structure, manual feeding is avoided, the installation convenience of the flexible connection device is improved, and the sealing performance between the flexible connection device and the box body is improved at the same time.

[0017] (3) For the environmental simulation four-in-one test chamber of the present invention, an exhibition structure is provided on the flexible connection device, which facilitates sliding the carrier table out of the test chamber through the exhibition structure, thereby facilitating fixing the workpiece to be tested on the carrier table, reducing the feeding difficulty of the test workpiece, and improving the feeding efficiency.

[0018] (4) In the environmental simulation four-in-one test chamber of the present invention, a fixing structure is provided on the flexible connection device, which facilitates fixing the central fixing table of the flexible connection device through the fixing structure, avoiding the shaking of the central fixing table during feeding. At the same time, after the feeding is completed, it is fixed to the fixing frame through the fixing structure, improving the stability of the stage. Description of the Drawings

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 Schematic diagram of the overall structure of a preferred embodiment of an environmental simulation four-in-one test chamber provided by the present invention; Figure 2 Schematic diagram of the connection structure between the connection seat and the fixed seat of the present invention; Figure 3 For Figure 2 Enlarged schematic diagram of the structure of part A shown in; Figure 4 Schematic diagram of the connection structure between the lifting table and the fixed seat of the present invention; Figure 5 For Figure 4 Enlarged schematic diagram of the structure of part B shown in; Figure 6 Schematic diagram of the connection structure between the flexible connection device and the exhibition structure of the present invention; Figure 7 For Figure 6 Enlarged schematic diagram of the structure of part C shown in; Figure 8 Schematic diagram of the connection structure between the box body and the main body structure of the present invention; Figure 9 For Figure 8 Enlarged schematic diagram of the structure of part D shown in; Figure 10 Schematic diagram of the connection structure between the stage and the roller of the present invention; Figure 11 Schematic diagram of the connection structure between the flexible connection device and the connection cylinder of the present invention; Figure 12 For Figure 11 Enlarged schematic diagram of the structure of part E shown in.

[0021] In the figure: 1. Box body; 2. Main structure; 201. Test chamber; 202. Control chamber; 203. Electrical chamber; 204. Flexible connection device; 205. Shaking table; 206. Carrier platform; 3. Installation structure; 301. Connection seat; 302. Fixed seat; 303. Lifting plate; 304. Hydraulic cylinder; 305. Universal ball; 306. Through hole; 307. Guide post; 308. First rack; 309. Gear; 310. Second rack; 311. Guide rod; 312. Positioning post; 313. Positioning sleeve; 4. Lifting structure; 401. Hydraulic rod; 402. Lifting plate; 403. Positioning block; 404. Positioning groove; 405. Sealing gasket; 406. Sealing groove; 5. Exhibition structure; 501. Connection cylinder; 502. Fixed frame; 503. Sliding frame; 504. Roller; 505. Fixed block; 506. Installation block; 507. Installation shaft; 508. Stop bar; 509. Blocking block; 510. Screw; 6. Fixing structure; 601. Installation seat; 602. Rotating shaft; 603. Fixed bar; 604. Limiting bar; 605. Slot; 606. Fixed sleeve; 607. Push rod; 608. Installation sleeve; 609. Spring; 610. Connection bar; 611. Limiting rod; 612. Limiting hole; 7. Lifting platform; 8. Slide rail. Detailed implementation mode

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0023] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 shown, an environmental simulation four-in-one test chamber of the present invention includes a box body 1, a main structure 2 provided on the box body 1, an installation structure 3 provided at the bottom end of the box body 1, a lifting structure 4 provided on the box body 1, an exhibition structure 5 provided on the main structure 2, a fixing structure 6 provided on the main structure 2, a lifting platform 7 provided at the bottom end of the box body 1, and a slide rail 8 provided at the bottom end of the lifting platform 7; The installation structure 3 includes a connecting seat 301 and a fixing seat 302. The bottom end of the box body 1 is fixedly connected with the connecting seat 301, and the lifting platform 7 is fixedly connected with the fixing seat 302. The connecting seat 301 and the fixing seat 302 are fixedly connected by bolts. A lifting plate 303 is slidably connected inside the fixing seat 302. A plurality of universal balls 305 are rotatably connected in a rectangular array on the lifting plate 303. The bottom end of the fixing seat 302 is fixedly connected with a hydraulic cylinder 304, and the telescopic end of the hydraulic cylinder 304 is fixedly connected with the lifting plate 303. A plurality of through holes 306 corresponding to the positions of the universal balls 305 are arranged in a rectangular array on the upper surface of the fixing seat 302. When the hydraulic cylinder 304 drives the lifting plate 303 to descend, the universal balls 305 extend out of the fixing seat 302 through the through holes 306 to support the free movement of the box body 1 on the fixing seat 302, which is suitable for position adjustment during hoisting or forklift handling. After the threaded hole positions on the connecting seat 301 are aligned with the threaded hole positions on the fixing seat 302 at the appropriate position, the hydraulic cylinder 304 contracts, and the lifting plate 303 drives the universal balls 305 to retract. Four first racks 308 are fixedly connected to the four corners of the lifting plate 303. One gear 309 is rotatably connected to each of the four corners of the fixing seat 302. Four second racks 310 are slidably connected to the fixing seat 302. The first racks 308, the second racks 310 and the gears 309 are meshed. The first racks 308 move with the lifting plate 303, and drive the second racks 310 to slide through the transmission of the gears 309, so that the positioning columns 312 are inserted into the positioning sleeves 313 to achieve precise positioning. Then, the connecting seat 301 and the fixing seat 302 are bolted and fixed. Four guide rods 311 are fixedly connected to the fixing seat 302. The arrangement of the guide rods 311 improves the stability of the up-and-down sliding of the second racks 310. A positioning column 312 is fixedly connected to the second rack 310, and four positioning sleeves 313 are fixedly connected to the connecting seat 301. The positioning column 312 is inserted into the positioning sleeve 313. Four guide columns 307 are fixedly connected to the bottom end of the lifting plate 303. The guide columns 307 are slidably connected to the fixing seat 302. The arrangement of the guide columns 307 improves the stability of the lifting of the lifting plate 303; The main body structure 2 includes a test chamber 201 and a control chamber 202. The internal space of the box body 1 is divided into a test chamber 201, a control chamber 202 and an electrical chamber 203. The control chamber 202 mainly houses the core equipment for realizing environmental parameter regulation, human-computer interaction and system linkage, which is the key machine for realizing temperature, humidity and vacuum simulation tests. The electrical chamber 203 is responsible for installing electrical components that provide power, signal transmission and equipment drive. The vibration test of the workpiece inside the test chamber 201 is realized through a vibration table 205. At the bottom end of the box body 1 where the test chamber 201 is located, a flexible connection device 204 is installed through a lifting structure 4. On the open space at the bottom end of the flexible connection device 204, there is a vibration table 205. The output end of the vibration table 205 is fixedly connected to the fixed table in the center of the flexible connection device 204. On the fixed table in the center of the flexible connection device 204, an exhibition structure 5 is installed. On the exhibition structure 5, there is a carrier table 206. During the vibration test, the box body 1 is driven to descend by a lifting platform 7, so that the central fixed table of the flexible connection device 204 is fixedly connected to the output end of the vibration table 205. When installing the flexible connection device 204, the lifting platform 7 can be driven to move on the slide rail 8 through a driving component. The lifting platform 7 drives the box body 1 to move together. After the bottom end of the box body 1 is an open space, the flexible connection device 204 can be installed.

[0024] Specifically, as Figure 1 、 Figure 6 and Figure 7 shown, the lifting structure 4 includes a hydraulic rod 401 and a lifting plate 402. Two hydraulic rods 401 are fixedly connected to both sides of the box body 1. The telescopic end of the hydraulic rod 401 is fixedly connected to the lifting plate 402. A plurality of positioning blocks 403 are fixedly connected to the lifting plate 402. A plurality of positioning grooves 404 are provided on the metal frame of the flexible connection device 204. The positioning blocks 403 are inserted into the positioning grooves 404. The flexible connection device 204 is carried onto the two lifting plates 402, and then the positioning grooves 404 on the flexible connection device 204 are inserted into the positioning blocks 403 on the lifting plates 402. Then the hydraulic rod 401 is started to rise, so that the metal frame of the flexible connection device 204 fits with the bottom of the box body 1. A sealing gasket 405 is fixedly connected to the metal frame of the flexible connection device 204. A sealing groove 406 is provided on the box body 1. The sealing gasket 405 is inserted into the sealing groove 406, and at the same time, the sealing gasket 405 is embedded in the sealing groove 406. Tight sealing is realized through the pressure of the hydraulic rod 401, which improves the installation efficiency of the flexible connection device 204. The metal frame of the flexible connection device 204 and the central fixed table are connected by a flexible material, which can absorb displacement and vibration energy during the vibration process, prevent the leakage of gas and liquid in the test chamber, and ensure the stability of environmental parameters such as temperature, humidity and air pressure in the test chamber. At the same time, this flexible material has good flexibility, sealing performance and heat resistance.

[0025] Specifically, as Figure 6, Figure 7 , Figure 9 and Figure 10 As shown in Figure 7 , Figure 9 and Figure 10 , the exhibition structure 5 includes a connecting cylinder 501 and a fixing frame 502. A connecting cylinder 501 is fixedly connected to the central fixing table of the flexible connection device 204. A fixing frame 502 is fixedly connected to the top end of the connecting cylinder 501. A U-shaped sliding frame 503 is fixedly connected to the fixing frame 502. A carrier 206 is slidably connected to the sliding frame 503. Four corners of the carrier 206 are rotatably connected with rollers 504. The rollers 504 are in rolling connection with the sliding frame 503. The carrier 206 is pulled out of the test chamber 201 along the sliding frame 503 through the rollers 504. A workpiece is placed on the carrier 206. The workpiece to be tested is fixed by a workpiece fixing tool on the carrier 206. Two fixing blocks 505 with a trapezoidal cross-section are fixedly connected to the carrier 206. Two mounting blocks 506 are fixedly connected to the sliding frame 503. A mounting shaft 507 is rotatably connected to one of the mounting blocks 506. A retaining bar 508 is fixedly connected to the mounting shaft 507. The retaining bar 508 is inserted into the other mounting block 506. Two abutting blocks 509 with a trapezoidal cross-section are fixedly connected to the retaining bar 508. The abutting blocks 509 are in contact with the fixing blocks 505. A screw 510 is threadedly connected to the mounting block 506. The screw 510 is threadedly connected to the retaining bar 508. Then the carrier 206 is pushed into the sliding frame 503 again and abuts against the rear edge of the sliding frame 503. Then the mounting shaft 507 is rotated to insert the retaining bar 508 into the mounting block 506. At this time, the abutting blocks 509 are in contact with the fixing blocks 505, further clamping and fixing the carrier 206. Then the screw 510 is tightened to fix the retaining bar 508 to prevent deviation during vibration.

[0026] Specifically, as shown in Figure 7 , Figure 11 and Figure 12As shown, the fixing structure 6 includes a mounting base 601 and a rotating shaft 602. Four mounting bases 601 are fixedly connected to the central fixing table of the flexible connection device 204. One rotating shaft 602 is rotatably connected between two adjacent mounting bases 601. Two fixing bars 603 are fixedly connected to the rotating shaft 602. Two limiting bars 604 are respectively provided at the bottom end of the fixing frame 502 and on the box body 1. Two slots 605 are provided on each limiting bar 604. The fixing bars 603 are inserted into the slots 605. When it is necessary to install the exhibition structure 5 on the central fixing table of the flexible connection device 204 or feed workpieces, in order to prevent the central fixing table from shaking and affecting the feeding, at this time, the push rod 607 can be pushed. The push rod 607 slides on the fixing sleeve 606. At the same time, the push rod 607 squeezes the spring 609 inside the mounting sleeve 608. The push rod 607 drives the two connecting bars 610 to move. The movement of the connecting bars 610 further drives the limiting rod 611 to slide. At this time, the fixing bar 603 can be rotated. The fixing bar 603 drives the rotating shaft 602 and another fixing bar 603 on the same rotating shaft 602 to rotate; Two fixing sleeves 606 are respectively fixedly connected to the bottom end of the fixing frame 502 and the box body 1. A push rod 607 with a T-shaped cross-section is slidably connected to the fixing sleeve 606. Two connecting bars 610 are fixedly connected to the push rod 607. The connecting bars 610 are slidably connected to the limiting bars 604. A limiting rod 611 is fixedly connected to the connecting bars 610. A limiting hole 612 is provided at the end of the fixing bar 603. The limiting rod 611 is inserted into the limiting hole 612; Two mounting sleeves 608 are respectively fixedly connected to the bottom end of the fixing frame 502 and the box body 1. The push rod 607 is slidably connected to the mounting sleeve 608. A spring 609 is fixedly connected between the push rod 607 and the mounting sleeve 608. After the fixing bar 603 rotates to the slot 605 on the limiting bar 604 on the box body 1, the push rod 607 can be released. The spring 609 resets and drives the push rod 607 to slide. The sliding drives the connecting bars 610 and the limiting rod 611 to slide. The limiting rod 611 is inserted into the limiting hole 612 at the end of the fixing bar 603. The same operation is performed on the other side of the central fixing table of the flexible connection device 204, thereby fixing the central fixing table of the flexible connection device 204. When it is necessary to perform a vibration test, the fixing effect between the fixing bar 603 and the limiting bar 604 on the box body 1 can be released in advance. The end of the fixing bar 603 is fixed to the limiting bar 604 at the bottom end of the fixing frame 502 according to the above fixing method, thereby improving the stability of the fixing frame 502.

[0027] When the present invention is in use, first, the hydraulic cylinder 304 drives the lifting plate 303 to descend. The universal ball 305 extends out of the fixed seat 302 through the through hole 306, supporting the box body 1 to move freely on the fixed seat 302, which is applicable to the position adjustment during hoisting or forklift handling. After the threaded hole positions on the connecting seat 301 are aligned with the threaded hole positions on the fixed seat 302 at the appropriate position, the hydraulic cylinder 304 contracts, and the lifting plate 303 drives the universal ball 305 to retract. At this time, the first rack 308 moves with the lifting plate 303, drives the second rack 310 to slide through the transmission of the gear 309, so that the positioning column 312 is inserted into the positioning sleeve 313 to achieve precise positioning. Then, the connecting seat 301 and the fixed seat 302 are fixed by bolts. The setting of the guide post 307 improves the stability of the lifting plate 303 during lifting, and the setting of the guide rod 311 improves the stability of the up and down sliding of the second rack 310; Then, the flexible connection device 204 is carried to the two lifting plates 402, and then the positioning groove 404 on the flexible connection device 204 is inserted into the positioning block 403 on the lifting plate 402. Then, the hydraulic rod 401 is started to rise, so that the metal frame of the flexible connection device 204 fits against the bottom of the box body 1. At the same time, the sealing gasket 405 is embedded in the sealing groove 406, and tight sealing is achieved through the pressure of the hydraulic rod 401, improving the installation efficiency of the flexible connection device 204. The metal frame of the flexible connection device 204 is connected to the central fixing table through a flexible material, which can absorb displacement and vibration energy during vibration, prevent the leakage of gas and liquid in the test chamber, and at the same time ensure the stability of environmental parameters such as temperature, humidity, and air pressure in the test chamber. At the same time, the flexible material has good flexibility, sealing performance, and heat resistance; Secondly, the carrier 206 is pulled out of the test chamber 201 along the slide frame 503 through the roller 504, the workpiece is placed on the carrier 206, and the workpiece to be tested is fixed by the workpiece fixing fixture on the carrier 206. Then, the carrier 206 is pushed into the slide frame 503 again and abuts against the rear edge of the slide frame 503. Then, the mounting shaft 507 is rotated to insert the blocking strip 508 into the mounting block 506. At this time, the abutting block 509 abuts against the fixed block 505, further clamping and fixing the carrier 206. Then, the blocking strip 508 is fixed by tightening the screw 510 to prevent deviation during vibration; Finally, when it is necessary to install the exhibition structure 5 on the central fixing table of the flexible connection device 204 or feed the workpiece, in order to prevent the central fixing table from shaking and affecting the feeding, the push rod 607 can be pushed at this time. The push rod 607 slides on the fixed sleeve 606. At the same time, the push rod 607 squeezes the spring 609 inside the mounting sleeve 608. The push rod 607 drives the two connecting bars 610 to move. The movement of the connecting bars 610 drives the limiting rod 611 to slide. At this time, the fixing bar 603 can be rotated. The fixing bar 603 drives the rotating shaft 602 and another fixing bar 603 on the same rotating shaft 602 to rotate. After the fixing bar 603 rotates into the slot 605 on the limiting bar 604 on the box body 1, the push rod 607 can be released. The spring 609 resets and drives the push rod 607 to slide. The sliding drives the connecting bar 610 and the limiting rod 611 to slide. The limiting rod 611 is inserted into the limiting hole 612 at the end of the fixing bar 603. The same operation is performed on the other side of the central fixing table of the flexible connection device 204, thereby fixing the central fixing table of the flexible connection device 204. When a vibration test is required, the fixing effect between the fixing bar 603 and the limiting bar 604 on the box body 1 can be released in advance, and the end of the fixing bar 603 can be fixed on the limiting bar 604 at the bottom of the fixing frame 502 according to the above fixing method, thereby improving the stability of the fixing frame 502; The control chamber 202 mainly houses the core equipment for realizing environmental parameter regulation, human-machine interaction and system linkage, and is used to realize the key machines for temperature, humidity and vacuum simulation tests. The electrical chamber 203 is responsible for installing electrical components that provide power, signal transmission and equipment drive. The vibration test of the workpiece inside the test chamber 201 is realized through the vibration table 205. During the vibration test, the box body 1 is driven to descend by the lifting table 7, so that the central fixing table of the flexible connection device 204 is fixedly connected to the output end of the vibration table 205. When installing the flexible connection device 204, the lifting table 7 can be driven to move on the slide rail 8 through the driving component. The lifting table 7 drives the box body 1 to move together. When the bottom end of the box body 1 is empty, the flexible connection device 204 can be installed.

[0028] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0029] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An environmental simulation four-in-one test chamber, characterized in that, It includes a box body (1), a main structure (2) provided on the box body (1), a mounting structure (3) provided at the bottom end of the box body (1), a lifting structure (4) provided on the box body (1), an exhibition structure (5) provided on the main structure (2), a fixing structure (6) provided on the main structure (2), a lifting platform (7) provided at the bottom end of the box body (1), and a slide rail (8) provided at the bottom end of the lifting platform (7); The mounting structure (3) includes a connecting seat (301) and a fixing seat (302). The bottom end of the box body (1) is fixedly connected to the connecting seat (301), and the lifting platform (7) is fixedly connected to the fixing seat (302). The connecting seat (301) and the fixing seat (302) are fixedly connected by bolts. A lifting plate (303) is slidably connected inside the fixing seat (302). A plurality of universal balls (305) are rollingly connected in a rectangular array on the lifting plate (303). A hydraulic cylinder (304) is fixedly connected to the bottom end of the fixing seat (302), and the telescopic end of the hydraulic cylinder (304) is fixedly connected to the lifting plate (303). A plurality of through holes (306) corresponding to the positions of the universal balls (305) are provided in a rectangular array on the upper surface of the fixing seat (302). A first rack (308) is fixedly connected to each of the four corners of the lifting plate (303). A gear (309) is rotatably connected to each of the four corners of the fixing seat (302). Four second racks (310) are slidably connected to the fixing seat (302). The first rack (308), the second rack (310) and the gear (309) are meshed. Four guide rods (311) are fixedly connected to the fixing seat (302). A positioning column (312) is fixedly connected to the second rack (310). Four positioning sleeves (313) are fixedly connected to the connecting seat (301). The positioning column (312) is inserted into the positioning sleeve (313).

2. The environmental simulation four-in-one test chamber according to claim 1, wherein: Four guide columns (307) are fixedly connected to the bottom end of the lifting plate (303), and the guide columns (307) are slidably connected to the fixing seat (302).

3. The environmental simulation four-in-one test chamber according to claim 1, wherein: The main structure (2) includes a test chamber (201) and a control chamber (202). The internal space of the box body (1) is divided into a test chamber (201), a control chamber (202) and an electrical chamber (203). A flexible connection device (204) is installed at the bottom end of the box body (1) where the test chamber (201) is located through a lifting structure (4). A vibration table (205) is provided on the open space at the bottom end of the flexible connection device (204). The output end of the vibration table (205) is fixedly connected to the fixed table in the center of the flexible connection device (204). An exhibition structure (5) is installed on the fixed table in the center of the flexible connection device (204). A carrier table (206) is provided on the exhibition structure (5).

4. An environmental simulation four-in-one test chamber according to claim 3, characterized in that: The lifting structure (4) includes a hydraulic rod (401) and a lifting plate (402). Two hydraulic rods (401) are fixedly connected to both sides of the box body (1). The telescopic end of the hydraulic rod (401) is fixedly connected to the lifting plate (402). A plurality of positioning blocks (403) are fixedly connected to the lifting plate (402). A plurality of positioning grooves (404) are provided on the metal frame of the flexible connection device (204). The positioning blocks (403) are inserted into the positioning grooves (404).

5. The environmental simulation four-in-one test chamber according to claim 4, characterized in that: A sealing gasket (405) is fixedly connected to the metal frame of the flexible connection device (204). A sealing groove (406) is provided on the box body (1). The sealing gasket (405) is inserted into the sealing groove (406).

6. The environmental simulation four-in-one test chamber according to claim 3, wherein: The exhibition structure (5) includes a connecting cylinder (501) and a fixing frame (502). The connecting cylinder (501) is fixedly connected to the central fixing platform of the flexible connection device (204). The top end of the connecting cylinder (501) is fixedly connected to the fixing frame (502). A U-shaped sliding frame (503) is fixedly connected to the fixing frame (502). A carrier (206) is slidably connected to the sliding frame (503). Four corners of the carrier (206) are rotatably connected with rollers (504). The rollers (504) are in rolling connection with the sliding frame (503).

7. The environmental simulation four-in-one test chamber according to claim 6, characterized in that: Two fixing blocks (505) with a trapezoidal cross-section are fixedly connected to the carrier (206). Two mounting blocks (506) are fixedly connected to the sliding frame (503). A mounting shaft (507) is rotatably connected to one of the mounting blocks (506). A blocking strip (508) is fixedly connected to the mounting shaft (507). The blocking strip (508) is inserted into the other mounting block (506). Two abutting blocks (509) with a trapezoidal cross-section are fixedly connected to the blocking strip (508). The abutting blocks (509) are in contact with the fixing blocks (505). A screw (510) is threadedly connected to the mounting block (506). The screw (510) is threadedly connected to the blocking strip (508).

8. The environmental simulation four-in-one test chamber according to claim 6, characterized in that: The fixing structure (6) includes a mounting seat (601) and a rotating shaft (602). Four mounting seats (601) are fixedly connected to the central fixing platform of the flexible connection device (204). One rotating shaft (602) is rotatably connected between two adjacent mounting seats (601). Two fixing strips (603) are fixedly connected to the rotating shaft (602). Two limiting strips (604) are provided at the bottom end of the fixing frame (502) and on the box body (1) respectively. Two slots (605) are provided on each limiting strip (604). The fixing strips (603) are inserted into the slots (605).

9. The environmental simulation four-in-one test chamber according to claim 8, characterized in that: At the bottom end of the fixing frame (502) and the box body (1), two fixing sleeves (606) are fixedly connected respectively. A push rod (607) with a T-shaped cross-section is slidably connected to the fixing sleeve (606). Two connecting bars (610) are fixedly connected to the push rod (607). The connecting bar (610) is slidably connected to the limiting bar (604). A limiting rod (611) is fixedly connected to the connecting bar (610). A limiting hole (612) is provided at the end of the fixing bar (603). The limiting rod (611) is inserted into the limiting hole (612).

10. The environmental simulation four-in-one test chamber according to claim 9, wherein: At the bottom end of the fixing frame (502) and the box body (1), two mounting sleeves (608) are fixedly connected respectively. The push rod (607) is slidably connected to the mounting sleeve (608). A spring (609) is fixedly connected between the push rod (607) and the mounting sleeve (608).

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