Lifting type sealing door structure of environmental test box

Abstract

The utility model relates to the technical field of environmental test boxes, in particular to a lifting type sealing door structure of an environmental test box, which comprises a support frame and a door plate slidably arranged on the support frame, the door plate is used for sealing the test box, and a lifting mechanism for driving the door plate to lift is arranged on the support frame. A moving mechanism for driving the supporting frame to move along the direction close to or far away from the test box is arranged on the test box. During sealing, the lifting mechanism is started to drive the door plate to rise to the position opposite to the opening of the test box along the supporting frame, then the moving mechanism is started to drive the whole supporting frame to move towards the test box, the door plate seals the opening of the test box, the whole supporting frame moves to drive the door plate to seal, and therefore the sealing effect is improved; and when the test box needs to be opened, reverse operation can be performed, so that the test box sealing convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental test chamber technology, and in particular to a lifting and sealing door structure for an environmental test chamber. Background Technology

[0002] Multi-environmental test chambers are widely used in aerospace products, information electronic instruments, materials, electrical engineering, automobiles, new energy batteries, and various electronic components. By simulating the natural environment (such as vibration, temperature, humidity, and air pressure) within an effective space, they aim to test various performance indicators of the test specimens. To increase the accuracy of the test, the test chamber door is usually required to have good sealing performance.

[0003] In related technologies, please refer to Chinese invention patent application number 2020105784190, which discloses an upward-moving sealed door structure for an environmental test chamber, including a door panel, a support frame, a door panel lifting mechanism, and a guide mechanism; the door panel is slidably assembled with the support frame in the vertical direction, and the door panel lifting mechanism is fixed on the support frame; the door panel lifting mechanism is connected to the door panel in a transmission manner, driving the door panel to move up and down; it also includes a pair of sliding rods, the two sliding rods being vertical and slidably disposed in the left and right columns of the support frame respectively in the vertical direction; the sliding rods are connected to the side of the door panel through two connecting rods, the two connecting rods being parallel and spaced apart in the vertical direction; the door panel forms two sets of parallel four-bar linkages through its left and right side edges, the left and right columns of the support frame, and each connecting rod; the guide mechanism is connected to the bottom end of the support frame and has a ramp inclined towards the test chamber, when the door panel moves downward, the bottom of the door panel abuts against the ramp, causing the door panel to move towards the test chamber, tightly closing and maintaining the chamber door.

[0004] However, this method is more complicated to install and debug because of the four-bar linkage. It only seals the door panel by pressing against the ramp. When the door panel is large, the ramp's support is insufficient, which will reduce the sealing effect and reduce the service life of the support frame. Utility Model Content

[0005] To improve the sealing effect of the lifting door of an environmental test chamber, this utility model provides a lifting sealing door structure for an environmental test chamber.

[0006] The lifting-type sealed door structure of the environmental test chamber provided in this application adopts the following technical solution:

[0007] A lifting-type sealing door structure for an environmental test chamber includes a support frame and a door panel slidably mounted on the support frame. The door panel is used to seal the test chamber. The support frame is provided with a lifting mechanism for driving the door panel to rise and fall. The test chamber is provided with a moving mechanism for driving the support frame to move in a direction close to or away from the test chamber.

[0008] By adopting the above technical solution, when sealing is required, the lifting mechanism is activated to drive the door panel to rise along the support frame to a position opposite to the opening of the test chamber. Then, the moving mechanism is activated to drive the entire support frame to move towards the test chamber, so that the door panel seals the opening of the test chamber. The movement of the entire support frame drives the door panel to seal, thereby improving the sealing effect. When opening is required, the operation is reversed, thereby improving the convenience of sealing the test chamber.

[0009] Optionally, the lifting mechanism includes:

[0010] A rotating shaft, which is rotatably mounted on a support frame and extends horizontally;

[0011] A winch is coaxially fixed on a rotating shaft, a traction rope is wound inside the winch, a connecting block is provided on the outer surface of the door panel, and the end of the traction rope away from the winch extends downward and is connected to the connecting block.

[0012] A lifting component, which is mounted on a support frame and connected to a rotating shaft and used to drive the rotating shaft to rotate;

[0013] A guide assembly, which is disposed on the support frame and connected to the door panel and is used to guide the door panel.

[0014] By adopting the above technical solution, the lifting component starts and drives the rotating shaft to rotate, which in turn drives the winch to rotate, thereby realizing the winding or extension of the traction rope. When the traction rope is wound, the door panel is lifted; when the traction rope is extended, the door panel is lowered under its own weight. The guide component guides the direction of movement of the door panel, thus realizing the lifting and lowering of the door panel. Installation, use and maintenance are relatively convenient, thereby improving the convenience of lifting and lowering the door panel.

[0015] Optionally, the guiding component includes:

[0016] The guide rails are provided in two sections, which are respectively located on two opposite inner walls of the support frame and extend vertically.

[0017] The guide block is provided in two sets and corresponds one-to-one with the guide rail. The guide block is fixed on the side wall of the door panel and slidably disposed on the corresponding guide rail.

[0018] By adopting the above technical solution, the door panel moves along the length of the guide rail via the guide block, thereby improving the convenience and stability of lifting and lowering the door panel.

[0019] Optionally, two winches are provided, and the two winches are respectively fixed at both ends of the rotating shaft.

[0020] By adopting the above technical solution, the two winches improve the stability of the door panel lifting and lowering.

[0021] Optionally, the moving mechanism includes:

[0022] A positioning frame is provided, which is set on the ground, and the test chamber is fixed on the positioning frame.

[0023] The upper slide rail is fixed to the upper surface of the test chamber and extends horizontally outward. An upper slider is slidably provided on the upper slide rail along the length direction. The outer surface of the upper slider is connected to the top of the support frame.

[0024] A lower slide rail is fixed on the positioning frame and located below the test chamber and extends horizontally outward. A lower slide block is slidably provided on the lower slide rail along its length direction. The upper surface of the lower slide block is connected to the bottom end of the support frame.

[0025] A movable component, which is mounted on the test chamber and is used to drive the support frame to move in a direction toward or away from the test chamber.

[0026] By adopting the above technical solution, the moving component starts and drives the support frame to move. The upper slide rail, upper slider, lower slide rail, and lower slider work together to guide the movement direction of the support frame, thereby improving the stability of the support frame movement. The overall movement of the support frame drives the door panel to seal the test chamber. There are no dead points in the connecting rods. The sealing effect can be adjusted by the movement distance of the support frame, thereby improving the sealing effect of the environmental test chamber lifting door.

[0027] Optionally, the moving component includes:

[0028] An upper fixing plate is fixed to the upper surface of the test chamber;

[0029] An upper locking cylinder is fixed on an upper fixed plate, and the telescopic end of the upper locking cylinder extends outward and is connected to the support frame.

[0030] A lower fixing plate is fixedly mounted on the lower surface of the test chamber;

[0031] The lower locking cylinder is fixed on the side wall of the support frame, and the telescopic end of the lower locking cylinder extends inward and is connected to the lower fixed plate.

[0032] By adopting the above technical solution, when sealing is required, the upper and lower locking cylinders retract, thereby driving the support frame closer to the test chamber, which in turn drives the door panel to seal the test chamber. When opening is required, the upper and lower locking cylinders extend, thereby driving the support frame away from the test chamber, which in turn drives the door panel to move, allowing the test chamber to open. The cooperation of the upper and lower locking cylinders improves the stability of the support frame movement, and the corresponding parts are relatively simple to install. Maintenance only requires regular application of lubricating oil. Therefore, while improving the sealing effect of the environmental test chamber lifting door, it also improves the convenience of installation, use, and maintenance of the sealing door structure.

[0033] Optionally, there are two upper slide rails and two lower slide rails. The two upper slide rails are spaced apart on the upper surface of the test chamber and connected to the support frame. The two lower slide rails are spaced apart on the positioning frame and connected to the bottom end of the support frame.

[0034] By adopting the above technical solution, the two upper slide rails and the two lower slide rails are located at the upper and lower ends of the support frame, respectively, thereby improving the stability of the support frame during installation and use.

[0035] Optionally, there are two upper locking cylinders and two lower locking cylinders. Both upper locking cylinders are connected to the top of the support frame. The support frame is provided with a connecting frame on the side near the test chamber. The connecting frame is located below the test chamber. Both lower locking cylinders are connected to the connecting frame.

[0036] By adopting the above technical solution, the stability of the support frame movement is improved by using multiple cylinders in coordination.

[0037] Optionally, the support frame is provided with a limiting component, the limiting component comprising:

[0038] The control module is located on the test chamber and its output terminal is electrically connected to the lifting component, the upper locking cylinder and the lower locking cylinder respectively.

[0039] A rise sensor is located on the inner side wall of the top of the support frame and is connected to the input terminal of the control module. When the door panel rises to the position, the connecting block abuts against the rise sensor.

[0040] A descent sensor is located on the inner wall of the support frame and below the test chamber, and is connected to the input terminal of the control module. When the door panel is lowered into position, the connecting block abuts against the descent sensor.

[0041] An internal sensor is located on the upper surface of the test chamber and connected to the input terminal of the control module.

[0042] An external sensor is located on the upper surface of the test chamber, between the inner sensor and the support frame, and connected to the input terminal of the control module. When the door panel is sealed to the test chamber, the upper slider only contacts the inner sensor. When the door panel moves to its position away from the test chamber, the upper slider disengages from the inner sensor and only contacts the external sensor.

[0043] By adopting the above technical solution, during sealing, the lifting component activates, causing the door panel to rise until the connecting block contacts the rising sensor. At this point, the rising sensor transmits a signal to the control module, which then stops the lifting component. The door panel is now in position. Then, the upper and lower locking cylinders retract synchronously, causing the support frame to move towards the test chamber until the upper sliding block only contacts the inner sensor. The inner sensor then transmits a signal to the control module, which stops the upper and lower locking cylinders, sealing the test chamber. When the test chamber needs to be opened, the upper and lower locking cylinders extend synchronously, pushing the support frame outwards until the upper sliding block... When the block detaches from the inner sensor and only contacts the outer sensor, the outer sensor transmits a signal to the control module. The control module then stops the upper and lower locking cylinders. At this point, there is a gap between the door panel and the test chamber. Next, the lifting mechanism starts, the traction rope extends, and the door panel descends under its own weight until the connecting block contacts the descent sensor. At this point, the descent sensor transmits a signal to the control module, which then stops the lifting mechanism. The door panel is now in position. The position of the door panel is limited by four sensors, which improves the convenience of door panel control. This not only improves the sealing effect of the environmental test chamber lifting door but also enhances the ease of installation, use, and maintenance of the sealed door structure.

[0044] Optionally, a sealing strip is provided on the inner wall of the door panel near the test chamber.

[0045] By adopting the above technical solution, the sealing strip increases the sealing effect between the door panel and the test chamber.

[0046] In summary, this application includes at least one of the following beneficial technical effects:

[0047] 1. When sealing is required, the lifting mechanism is activated to raise the door panel along the support frame to a position opposite to the opening of the test chamber. Then, the moving mechanism is activated to move the entire support frame toward the test chamber, so that the door panel seals the opening of the test chamber. The movement of the entire support frame thereby seals the door panel, thus improving the sealing effect. When opening is required, the operation is reversed, thus improving the convenience of sealing the test chamber.

[0048] 2. The traction rope is wound or extended by the rotation of the winch. When the traction rope is wound, the door panel is driven to rise. When the traction rope is extended, the door panel is lowered under its own weight. The guide component guides the movement direction of the door panel, thereby realizing the lifting and lowering of the door panel. The installation, use and maintenance are relatively convenient, thus improving the convenience of lifting and lowering the door panel.

[0049] 3. The stability of the support frame movement is improved by the cooperation of the upper and lower locking cylinders, and the corresponding parts are relatively simple to install. During maintenance, only regular application of lubricating oil is required. Therefore, while improving the sealing effect of the environmental test chamber lifting door, the convenience of installation, use and maintenance of the sealing door structure is also improved.

[0050] 4. By using four sensors to limit the position of the door panel, the convenience of door panel control is improved. This not only enhances the sealing effect of the environmental test chamber lifting door, but also improves the ease of installation, use, and maintenance of the sealed door structure. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the overall structure of the test chamber in the open state in this application;

[0052] Figure 2 This is a schematic diagram of the overall structure of the test chamber in the closed state in this application;

[0053] Figure 3 This is a structural schematic diagram of the door panel in this application;

[0054] Figure 4 This is a structural schematic diagram of the lifting mechanism in this application;

[0055] Figure 5 This is a schematic diagram of the structure of the guide component in this application;

[0056] Figure 6 This is a schematic diagram of the structure of the mobile mechanism in this application;

[0057] Figure 7 This is a schematic diagram of the upper and lower slide rails in this application;

[0058] Figure 8 This is a schematic diagram of the upper locking cylinder and the lower locking cylinder in this application;

[0059] Figure 9 yes Figure 6 Enlarged schematic diagram of part A in the middle.

[0060] Reference numerals: 1. Support frame; 11. Test chamber; 12. Bearing seat; 13. Connecting frame; 2. Door panel; 21. Sealing strip; 22. Connecting block; 221. Traction ring; 3. Lifting mechanism; 31. Rotating shaft; 32. Winch; 321. Traction rope; 33. Lifting component; 331. Motor; 332. Reducer; 333. Coupling; 34. Guide assembly; 341. Guide rail; 342. Guide block; 4. Moving mechanism; 4 1. Positioning frame; 42. Upper slide rail; 421. Upper slider; 43. Lower slide rail; 431. Lower slider; 44. Moving assembly; 441. Upper fixing plate; 442. Upper locking cylinder; 443. Lower fixing plate; 444. Lower locking cylinder; 445. Upper connecting plate; 446. Lower connecting plate; 5. Limiting assembly; 51. Control module; 52. Rising sensor; 53. Falling sensor; 54. Internal sensor; 55. External sensor. Detailed Implementation

[0061] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0062] This application discloses a liftable sealing door structure for an environmental test chamber.

[0063] Reference Figure 1 and Figure 2 A lifting-type sealing door structure for an environmental test chamber includes a support frame 1 and a door panel 2 slidably mounted on the support frame 1. The door panel 2 is used to seal the test chamber 11. The support frame 1 is provided with a lifting mechanism 3 that drives the door panel 2 to lift and lower. The test chamber 11 is provided with a moving mechanism 4 that drives the support frame 1 to move in the direction of approaching or moving away from the test chamber 11.

[0064] Reference Figure 1 , Figure 2 and Figure 3 The outer end of the test chamber 11 has an opening for easy placement and removal of test specimens. The size of the door panel 2 is larger than the size of the opening, and the top of the support frame 1 is located above the opening. The distance between the bottom of the support frame 1 and the lower surface of the test chamber 11 is not less than the height of the door panel 2. The inner wall of the door panel 2 near the opening of the test chamber 11 is provided with a sealing strip 21 to increase the sealing performance.

[0065] Reference Figure 1 , Figure 3 and Figure 4 Two connecting blocks 22 are fixedly provided at intervals on the outer surface of the door panel 2. The lifting mechanism 3 includes a rotating shaft 31, a winch 32, a lifting component 33, and a guide assembly 34.

[0066] Reference Figure 1 , Figure 2 and Figure 4The rotating shaft 31 is rotatably mounted on the support frame 1 and extends horizontally. Both ends of the upper surface of the support frame 1 have bearing seats 12 for supporting the rotating shaft 31. There are two winches 32, which are coaxially fixed at both ends of the rotating shaft 31. The two winches 32 correspond one-to-one with the two connecting blocks 22 and are located directly above the corresponding connecting blocks 22. A traction rope 321 is wound inside the winch 32. In this embodiment, the traction rope 321 is a steel wire rope. The end of the traction rope 321 away from the winch 32 extends downward and connects to the corresponding connecting block 22. In this embodiment, there is a traction ring 221 above the connecting block 22. The end of the traction rope 321 away from the winch 32 has a connecting buckle (not shown in the figure). The traction rope 321 is connected to the connecting block 22 by fastening the connecting buckle to the traction ring 221.

[0067] Reference Figure 1 , Figure 2 and Figure 4 The lifting component 33 is mounted on the support frame 1 and connected to the rotating shaft 31 and is used to drive the rotating shaft 31 to rotate. The lifting component 33 includes a motor 331, a reducer 332 and a coupling 333. The motor 331 is connected to the reducer 332, and the reducer 332 is connected to the rotating shaft 31 through the coupling 333, thereby realizing the rotation of the rotating shaft 31. In other feasible embodiments, the lifting component 33 can be any kind of device that can drive the rotating shaft 31 to rotate.

[0068] Reference Figure 2 , Figure 4 and Figure 5 The guide component 34 is mounted on the support frame 1 and connected to the door panel 2 for guiding the door panel 2. The guide component 34 includes a guide rail 341 and a guide block 342. There are two guide rails 341, which are fixed on the two opposite inner walls of the support frame 1 and extend vertically. There are two sets of guide blocks 342, which correspond one-to-one with the guide rails 341. Each set includes four guide blocks 342 arranged on the same side and arranged vertically. The guide blocks 342 are fixed on the side wall of the door panel 2 and slidably mounted on the corresponding guide rail 341.

[0069] Reference Figure 1 , Figure 2 and Figure 4 During lifting and lowering, the motor 331 starts and drives the rotating shaft 31 to rotate. The rotating shaft 31 drives the two winches 32 to rotate. The rotation of the winches 32 realizes the winding or extension of the traction rope 321. When the traction rope 321 is wound, the door panel 2 is driven to rise. When the traction rope 321 is extended, the door panel 2 is lowered under its own gravity. The guide rail 341 and the guide block 342 cooperate to guide the movement direction of the door panel 2, thereby realizing the lifting and lowering of the door panel 2. The installation, use and maintenance are relatively convenient, thus improving the convenience of lifting and lowering the door panel 2.

[0070] Reference Figure 1 , Figure 2 and Figure 6 The moving mechanism 4 includes a positioning frame 41, an upper slide rail 42, a lower slide rail 43, and a moving component 44. For ease of explanation, in the following description, "outward" means the direction away from the opening of the test chamber 11, and "inward" means the direction towards the inside of the test chamber 11.

[0071] Reference Figure 1 , Figure 6 and Figure 7 The positioning frame 41 is fixed to the ground, and the test chamber 11 is fixed on the positioning frame 41. There are two upper slide rails 42. The two upper slide rails 42 are fixed at intervals on the upper surface of the test chamber 11 and extend horizontally outward. The upper slide block 421 is slidably provided on both upper slide rails 42 along the length direction. The outer surface of the upper slide block 421 is connected to the top of the support frame 1.

[0072] Reference Figure 1 , Figure 6 and Figure 7 There are two sliding rails 43. The two sliding rails 43 are fixed on the positioning frame 41 at intervals and located below the test chamber 11 and extend horizontally outward. The two sliding rails 43 are each provided with a sliding block 431 along the length direction. The upper surface of the sliding block 431 is connected to the bottom end of the support frame 1.

[0073] Reference Figure 2 , Figure 6 and Figure 8 The moving component 44 is mounted on the test chamber 11 and is used to drive the support frame 1 to move in a direction close to or away from the test chamber 11. The moving component 44 includes an upper fixed plate 441, an upper locking cylinder 442, a lower fixed plate 443, and a lower locking cylinder 444.

[0074] Reference Figure 2 , Figure 6 and Figure 8 There are two upper fixing plates 441, which are fixed at intervals on the upper surface of the test chamber 11. Two upper slide rails 42 are located between the two upper fixing plates 441 and between the two bearing seats 12. There are two upper locking cylinders 442, which correspond one-to-one with the upper fixing plates 441. The upper locking cylinders 442 are fixed on the corresponding upper fixing plates 441. The telescopic ends of the upper locking cylinders 442 extend outward and are connected to the upper surface of the support frame 1 through the upper connecting plate 445.

[0075] Reference Figure 2 , Figure 6 and Figure 8There are two lower fixing plates 443, which are fixed at intervals on the lower surface of the test chamber 11. The two lower fixing plates 443 are located directly below the two upper fixing plates 441. There are two lower locking cylinders 444, which correspond one to one with the lower fixing plates 443. The support frame 1 has a horizontal connecting frame 13 on the side near the test chamber 11. The two lower locking cylinders 444 are connected to the connecting frame 13 through the lower connecting plate 446. The telescopic end of the lower locking cylinder 444 extends inward and is connected to the corresponding lower fixing plate 443.

[0076] Reference Figure 1 , Figure 2 and Figure 6 When the test chamber 11 needs to be sealed, the lifting component 33 drives the door panel 2 to rise. Then, the upper locking cylinder 442 and the lower locking cylinder 444 retract. The extension end of the upper locking cylinder 442 moves, causing the support frame 1 to move inward. Since the extension end of the lower locking cylinder 444 is connected to the lower fixed plate 443, the lower locking cylinder 444 moves inward, thereby driving the support frame 1 to move inward. The upper locking cylinder 442 and the lower locking cylinder 444 work together to drive the support frame 1 to move towards the test chamber 11. The upper slide rail 42 and the upper slider 421, and the lower slide rail 43 and the lower slider 431 work together to guide and limit the movement of the support frame 1, thereby improving the convenience and stability of the movement of the support frame 1. When the test specimen needs to be removed, the operation can be reversed, thereby improving the convenience of sealing the environmental test chamber 11.

[0077] Reference Figure 2 , Figure 6 and Figure 9 The support frame 1 is also provided with a limiting component 5, which includes a control module 51, a rising sensor 52, a falling sensor 53, an inner sensor 54 and an outer sensor 55. The control module 51 is located on the test chamber 11 and its output end is electrically connected to the lifting component 33, the upper locking cylinder 442 and the lower locking cylinder 444 respectively.

[0078] Reference Figure 2 , Figure 6 and Figure 9 The rising sensor 52 is located on the inner wall of the top of the support frame 1 and is connected to the input terminal of the control module 51. When the door panel 2 rises to the position, one of the connecting blocks 22 abuts against the rising sensor 52. The falling sensor 53 is located on the inner wall of the support frame 1 and below the test chamber 11 and is connected to the input terminal of the control module 51. When the door panel 2 falls to the position, one of the connecting blocks 22 abuts against the falling sensor 53.

[0079] Reference Figure 2 , Figure 6 and Figure 9The inner sensor 54 is located on the upper surface of the test chamber 11 and connected to the input terminal of the control module 51. The outer sensor 55 is located on the upper surface of the test chamber 11 and between the inner sensor 54 and the support frame 1 and connected to the input terminal of the control module 51. When the door panel 2 is sealed to the test chamber 11, the upper slider 421 only abuts against the inner sensor 54. When the door panel 2 moves to the position away from the test chamber 11, the upper slider 421 disengages from the inner sensor 54 and only abuts against the outer sensor 55. The position of the door panel 2 is limited by the four sensors, which improves the convenience of controlling the door panel 2.

[0080] The working principle of this application embodiment is as follows:

[0081] During sealing, the lifting component 33 is activated, and the door panel 2 is moved upward through the winch 32 and the traction rope 321 until the connecting block 22 contacts the lifting sensor 52. At this time, the lifting sensor 52 transmits a signal to the control module 51, and the control module 51 controls the lifting component 33 to stop. The door panel 2 then rises to the correct position. Then, the upper locking cylinder 442 and the lower locking cylinder 444 retract synchronously, thereby moving the support frame 1 toward the test chamber 11 until the upper slider 421 only contacts the inner sensor 54. The inner sensor 54 transmits a signal to the control module 51, and the control module 51 controls the upper locking cylinder 442 and the lower locking cylinder 444 to stop. At this time, the door panel 2 seals the test chamber 11. The support frame 1 moves as a whole, thereby driving the door panel 2 to seal, thus improving the sealing effect. When it needs to be opened, the operation can be reversed, thus improving the convenience of sealing the test chamber 11.

[0082] When the test chamber 11 needs to be opened, the upper locking cylinder 442 and the lower locking cylinder 444 extend synchronously, pushing the support frame 1 to move outward until the upper slider 421 disengages from the inner sensor 54 and only contacts the outer sensor 55. At this time, the outer sensor 55 transmits a signal to the control module 51, and the control module 51 controls the upper locking cylinder 442 and the lower locking cylinder 444 to stop. At this time, there is a gap between the door panel 2 and the test chamber 11. Then, the lifting component 33 starts, the traction rope 321 extends, and the door panel 2 descends under its own weight until the connecting block 22 contacts the descent sensor 53. At this time, the descent sensor 53 transmits a signal to the control module 51, and the control module 51 controls the lifting component 33 to stop. At this time, the door panel 2 descends to the correct position.

[0083] Meanwhile, the installation of the corresponding components of the overall structure is relatively simple, and lubricating oil can be applied regularly during maintenance. Therefore, while improving the sealing effect of the lifting door of the environmental test chamber 11, it also improves the convenience of installation, use and maintenance of the sealing door structure.

[0084] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting-type sealing door structure for an environmental test chamber, characterized in that: It includes a support frame (1) and a door panel (2) slidably mounted on the support frame (1). The door panel (2) is used to seal the test chamber (11). The support frame (1) is provided with a lifting mechanism (3) for driving the door panel (2) to rise and fall. The test chamber (11) is provided with a moving mechanism (4) for driving the support frame (1) to move in the direction close to or away from the test chamber (11).

2. The lifting-type sealing door structure of the environmental test chamber according to claim 1, characterized in that: The lifting mechanism (3) includes: A rotating shaft (31) is rotatably mounted on a support frame (1) and extends horizontally; A winch (32) is coaxially fixed on a rotating shaft (31). A traction rope (321) is wound inside the winch (32). A connecting block (22) is provided on the outer surface of the door panel (2). The end of the traction rope (321) away from the winch (32) extends downward and is connected to the connecting block (22). Lifting component (33), which is mounted on the support frame (1) and connected to the rotating shaft (31) and is used to drive the rotating shaft (31) to rotate; A guide component (34) is disposed on the support frame (1) and connected to the door panel (2) for guiding the door panel (2).

3. The lifting-type sealing door structure of the environmental test chamber according to claim 2, characterized in that: The guide component (34) includes: Guide rail (341), two guide rails (341) are provided, and the two guide rails (341) are respectively provided on the two inner walls of the support frame (1) and extend vertically; Guide block (342), there are two sets of guide blocks (342) and they correspond one-to-one with the guide rail (341). The guide block (342) is fixed on the side wall of the door panel (2) and slidably mounted on the corresponding guide rail (341).

4. The lifting-type sealing door structure of the environmental test chamber according to claim 2, characterized in that: Two winches (32) are provided, and the two winches (32) are respectively fixed at both ends of the rotating shaft (31).

5. The lifting-type sealing door structure of the environmental test chamber according to claim 2, characterized in that: The moving mechanism (4) includes: Positioning frame (41), the positioning frame (41) is set on the ground, and the test box (11) is fixed on the positioning frame (41); The upper slide rail (42) is fixed on the upper surface of the test chamber (11) and extends horizontally outward. The upper slide rail (42) is provided with an upper slider (421) along the length direction. The outer surface of the upper slider (421) is connected to the top of the support frame (1). The lower slide rail (43) is fixed on the positioning frame (41) and located below the test chamber (11) and extends horizontally outward. The lower slide rail (43) is provided with a sliding block (431) along the length direction. The upper surface of the sliding block (431) is connected to the bottom end of the support frame (1). A moving component (44) is disposed on the test chamber (11) and is used to drive the support frame (1) to move in a direction toward or away from the test chamber (11).

6. The lifting-type sealing door structure of the environmental test chamber according to claim 5, characterized in that: The moving component (44) includes: Upper fixing plate (441), the upper fixing plate (441) is fixed on the upper surface of the test chamber (11); Upper locking cylinder (442), the upper locking cylinder (442) is fixed on the upper fixed plate (441), the telescopic end of the upper locking cylinder (442) extends outward and is connected to the support frame (1); The lower fixing plate (443) is fixed on the lower surface of the test chamber (11); The lower locking cylinder (444) is fixed on the side wall of the support frame (1). The telescopic end of the lower locking cylinder (444) extends inward and is connected to the lower fixing plate (443).

7. The lifting-type sealing door structure of the environmental test chamber according to claim 5, characterized in that: Two upper slide rails (42) and two lower slide rails (43) are provided. The two upper slide rails (42) are spaced apart on the upper surface of the test chamber (11) and connected to the support frame (1). The two lower slide rails (43) are spaced apart on the positioning frame (41) and connected to the bottom end of the support frame (1).

8. The lifting-type sealing door structure of the environmental test chamber according to claim 6, characterized in that: Two upper locking cylinders (442) and two lower locking cylinders (444) are provided. The two upper locking cylinders (442) are connected to the top of the support frame (1). The support frame (1) is provided with a connecting frame (13) on the side near the test chamber (11). The connecting frame (13) is located below the test chamber (11). The two lower locking cylinders (444) are connected to the connecting frame (13).

9. The lifting-type sealing door structure of the environmental test chamber according to claim 6, characterized in that: The support frame (1) is provided with a limiting component (5), the limiting component (5) including: The control module (51) is located on the test chamber (11) and its output end is electrically connected to the lifting component (33), the upper locking cylinder (442) and the lower locking cylinder (444) respectively. The rise sensor (52) is located on the inner side wall of the top of the support frame (1) and connected to the input end of the control module (51). When the door panel (2) rises to the position, the connecting block (22) abuts against the rise sensor (52). The descent sensor (53) is located on the inner wall of the support frame (1) and below the test chamber (11) and connected to the input end of the control module (51). When the door panel (2) is lowered into place, the connecting block (22) abuts against the descent sensor (53). An internal sensor (54) is disposed on the upper surface of the test chamber (11) and connected to the input terminal of the control module (51); An external sensor (55) is located on the upper surface of the test chamber (11) between the inner sensor (54) and the support frame (1) and is connected to the input end of the control module (51). When the door panel (2) seals the test chamber (11) in place, the upper slider (421) only abuts against the inner sensor (54). When the door panel (2) moves in a direction away from the test chamber (11) and is in place, the upper slider (421) disengages from the inner sensor (54) and only abuts against the external sensor (55).

10. The lifting-type sealing door structure of the environmental test chamber according to claim 1, characterized in that: The door panel (2) is provided with a sealing strip (21) on the inner wall near the test chamber (11).

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