Pressure balancing device for transition chamber of plateau altitude environment simulation cabin

Abstract

The invention discloses a pressure balancing device for a transition room of a plateau altitude environment simulation cabin. The pressure balancing device is characterized in that a three-way regulating valve is respectively connected with an atmospheric environment pipeline, a transition room environment pipeline and an environment cabin internal environment pipeline; the reversing valve is connected with the three-way regulating valve through the three-way valve connecting rod to control the three-way regulating valve to rotate, is connected with the first end of the extravehicular connecting rod through the extravehicular connecting rod extension section, and is connected with the first end of the environmental intravehicular connecting rod through the intravehicular connecting rod extension section; the outboard connecting rod penetrates out of the first transition steel shell through the first transmission mechanism penetrating piece, and a first rotating handle is formed at the second end of the outboard connecting rod. The connecting rod in the environmental chamber penetrates out of the second transition dividing wall through a second transmission mechanism penetrating piece, and a second rotating handle is formed at the second end; the first transmission mechanism penetrating piece and the second transmission mechanism penetrating piece penetrate through and are fixed to the first transition chamber steel shell and the second transition chamber wall correspondingly. The third rotating handle is formed on the outboard connecting rod; and a fourth rotating handle is formed on the connecting rod in the environment chamber.

Description

Technical Field

[0001] The invention relates to the field of environmental testing, and in particular to a pressure balancing device for a transition room of a plateau altitude environment simulation cabin. Background Art

[0002] Currently, to improve the adaptability and reliability of products (including but not limited to automotive equipment), they are tested in various environmental conditions before leaving the factory, such as those in extremely cold and hot regions, and at high altitudes. To reduce R&D testing time and testing costs, numerous environmental simulation laboratories have been established, such as those designed for high-altitude environmental simulation.

[0003] A high altitude environment simulation chamber, also known as an altitude chamber, is a test chamber used to simulate high altitude environments in low altitude areas. The air in the chamber is extracted to reduce the air pressure in the chamber to reach the air pressure at a comparable altitude. Unlike conventional environmental chambers, the altitude chamber needs to simulate environmental parameters such as air pressure at different altitudes, resulting in different pressure environments inside the chamber and outside. The high altitude environment simulation chamber is used to realistically simulate high altitude environments. The internal air pressure must be lower than the external natural environment pressure (usually atmospheric pressure). In this operating state, people cannot enter or exit the environmental chamber and the outside world, and they need to pass through the transition room for pressure balance before they can open and enter.

[0004] When personnel enter or exit the altitude chamber, the altitude simulation must be stopped and restarted once personnel are in place. Personnel must remain in the chamber for extended periods, with some tests requiring more than 12 hours. This prolonged period in a negative pressure environment poses significant risks to personnel performance and safety.

[0005] Furthermore, the decompression rates during high-altitude operation and shutdown conditions are affected by cabin volume, equipment capacity, and safety considerations, consuming considerable time and impacting test progress. Especially when personnel are present in the cabin, the altitude decompression rate is further reduced to ensure personnel safety, significantly increasing test time.

[0006] Therefore, there is an urgent need for a technical solution that can ensure the safe entry and exit of personnel in the plateau altitude environment simulation cabin without stopping the altitude simulation working conditions. Summary of the Invention

[0007] The Summary of the Invention introduces a series of simplified concepts, which are simplifications of existing technologies in the field and are further described in detail in the Detailed Description of the Invention. The Summary of the Invention is not intended to define the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0008] The technical problem to be solved by the present invention is to provide a transition pressure balancing device that can ensure the safe entry and exit of personnel in and out of a plateau altitude environment simulation cabin without stopping the operation of the altitude simulation working condition.

[0009] In order to solve the above technical problems, the present invention provides a pressure balancing device for the transition room of a plateau altitude environment simulation cabin, comprising:

[0010] The three-way regulating valve 4 is connected to the atmospheric environment pipeline 5, the transition room environment pipeline 6 and the environment pipeline 7 in the environmental chamber respectively;

[0011] The reversing valve 8 is connected to the three-way regulating valve 3 via the three-way valve connecting rod 9 to control its rotation. The reversing valve 8 is connected to the first end of the external connecting rod 11 via the external connecting rod extension 10 and is connected to the first end of the environmental cabin connecting rod 13 via the internal connecting rod extension 12;

[0012] The outer connecting rod 11 passes through the first transmission mechanism through-piece 14.1 and out of the first transition steel shell 6.1, and a first rotating handle 15.1 is formed at its second end;

[0013] The connecting rod 13 in the environmental chamber passes through the second transmission mechanism penetrating member 14.2 and out of the second transition partition 6.2, and a second rotating handle 15.2 is formed at the second end thereof;

[0014] The first transmission mechanism penetration piece 14.1 and the second transmission mechanism penetration piece 14.2 respectively penetrate and are fixed on the first transition steel shell 6.1 and the second transition wall 6.2;

[0015] The third rotating handle 15.3 is formed on the outer connecting rod extension section 1011;

[0016] The fourth rotation handle 15.4 is formed on the connecting rod extension section 1213 in the cabin.

[0017] Preferably, the pressure balancing device in the transition room of the plateau altitude environment simulation cabin is further improved, and the reversing valve 8 is a T-type reversing valve.

[0018] Preferably, the pressure balancing device for the transition room of the plateau altitude environment simulation cabin is further improved, further comprising:

[0019] The first connecting rod guide 16.1 is formed on the outboard connecting rod extension 10;

[0020] The second connecting rod guide 16 . 2 is formed on the connecting rod extension 12 in the cabin.

[0021] Preferably, the pressure balancing device in the transition room of the plateau altitude environment simulation cabin is further improved, and the first transmission mechanism penetration piece 14.1 and the second transmission mechanism penetration piece 14.2 have the same structure.

[0022] Preferably, the pressure balancing device for the transition room of the plateau altitude environment simulation cabin is further improved, and the first transmission mechanism penetration piece 14.1 and the second transmission mechanism penetration piece 14.2 include:

[0023] Welding flange 14.3, which passes through and is fixed to the transition steel shell;

[0024] At least one first sealing ring 14.4 formed between the welding flange 14.3 and the transition steel shell;

[0025] The bearing seat 14.5 has one end inserted into the welding flange 14.3;

[0026] The second sealing ring 14.6 is formed on the connecting rod 11 outside the cabin or the connecting rod 13 inside the environmental cabin and is located between the welding flange 14.3 and the end of the bearing seat 14.5.

[0027] Preferably, the pressure balancing device in the transition room of the plateau altitude environment simulation cabin is further improved so that the connecting rod 11 outside the cabin and the connecting rod 13 inside the environment cabin can rotate synchronously on the same axis.

[0028] Preferably, the pressure balancing device in the transition room of the plateau altitude environment simulation cabin is further improved, and the outboard connecting rod 11 and the outboard connecting rod extension 10 are connected by a universal joint 17;

[0029] The environmental cabin inner connecting rod 13 and the cabin inner connecting rod extension 12 are connected via a universal joint 17 .

[0030] When a person is outside the transition room, turn the first rotating handle 15.1 to keep the atmospheric environment pipeline 5 and the transition room environment pipeline 6 connected, and wait for the transition room pressure to be consistent with the atmospheric pressure. At this time, the environmental pipeline 7 inside the environmental chamber, the atmospheric environment pipeline 5, and the transition room environment pipeline 6 are in a cut-off state. Then open the personnel door outside the transition room, let the person enter the transition room, and then close the personnel door outside the transition room. Then turn the fourth rotating handle 15.4 or the third rotating handle 15.3 to keep the transition room environment pipeline 6 and the environmental pipeline 7 inside the environmental chamber connected. At this time, the atmospheric environment pipeline 5 and the transition room environment pipeline 6 and the environmental pipeline 7 inside the environmental chamber are in a cut-off state. When the pressure in the transition room reaches the pressure inside the environmental chamber, open the personnel door inside the transition room, and close the personnel door after the person enters the environmental chamber.

[0031] When a person is inside the environmental chamber, turn the second rotary handle 15.2 to maintain communication between the transition chamber environmental line 6 and the environmental chamber internal line 7. At this point, the atmospheric environment line 5, the transition chamber environmental line 6, and the environmental chamber internal line 7 are in a cutoff state. When the transition chamber pressure reaches the internal pressure of the environmental chamber, open the internal personnel door of the transition chamber. After the person enters the transition chamber, close the personnel door. Then, turn the third rotary handle 15.3 or the fourth rotary handle 15.4 to maintain communication between the atmospheric environment line 5 and the transition chamber environmental line 6. At this point, the environmental chamber internal line 7, the atmospheric environment line 5, and the transition chamber environmental line 6 are in a cutoff state. When the transition chamber pressure reaches atmospheric pressure, open the external personnel door of the transition chamber, allow the person to enter the outside world, and then close the external personnel door of the transition chamber.

[0032] This invention balances the pressure between the transition chamber and the environmental chamber, as well as the pressure between the transition chamber and the outside world (the atmosphere), ensuring safe entry and exit of personnel after acclimating to different pressure environments. When using this invention, the pressure balance is limited to the transition chamber, which is relatively small, significantly shortening the time it takes for operating conditions to stabilize. Personnel can adjust the valve opening according to their personal preferences, independently adjusting the rate of pressure increase and decrease. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are intended to illustrate the general characteristics of methods, structures, and / or materials used in certain exemplary embodiments of the present invention, supplementing the descriptions in the specification. However, the drawings herein are schematic diagrams not drawn to scale and may not accurately reflect the precise structure or performance characteristics of any given embodiment. The drawings herein should not be interpreted as defining or limiting the range of values or properties encompassed by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments:

[0034] Figure 1 It is a schematic diagram of the installation position of the present invention.

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 3 It is a schematic structural diagram of a preferred embodiment of the transmission mechanism penetration member provided by the present invention.

[0037] Description of reference numerals:

[0038] Environmental Chamber 1

[0039] Transition Room 2

[0040] Three-way regulating valve 4

[0041] Atmospheric environment pipeline 5

[0042] Transition room environmental pipeline 6

[0043] Environmental pipeline in environmental chamber 7

[0044] First transitional steel shell 6.1

[0045] Second transition partition 6.2

[0046] Reversing valve 8

[0047] Three-way valve connecting rod 9

[0048] Outboard connecting rod extension 10

[0049] Outboard connecting rod 11

[0050] Cabin connecting rod extension 12

[0051] Connecting rod 13 in environmental chamber

[0052] First transmission mechanism penetration piece 14.1

[0053] Second transmission mechanism through-piece 14.2

[0054] First rotating handle 15.1

[0055] Second rotating handle 15.2

[0056] The third rotating handle 15.3

[0057] Fourth rotating handle 15.4

[0058] First connecting rod guide 16.1

[0059] Second connecting rod guide 16.2

[0060] Universal joint 17. DETAILED DESCRIPTION

[0061] The following describes the embodiments of the present invention through specific embodiments. Those skilled in the art will fully understand the other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can be applied based on different perspectives and various modifications or changes can be made without departing from the overall design concept of the invention. It should be noted that the following embodiments and features therein can be combined with each other unless there is a conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be construed as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, the element can be directly connected or coupled to the other element, or intervening elements can be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements. Throughout the drawings, the same reference numerals represent the same element. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0062] First embodiment;

[0063] refer to Figure 1 Combine Figure 2 As shown, the present invention provides a pressure balancing device for a transition room of a plateau altitude environment simulation cabin, comprising:

[0064] The three-way regulating valve 3 is connected to the atmospheric environment pipeline 5, the transition room environment pipeline 6 and the environment pipeline 7 in the environmental chamber respectively;

[0065] The reversing valve 8 is a T-type reversing valve, which is connected to the three-way regulating valve 3 through the three-way valve connecting rod 9 to control its rotation. The reversing valve 8 is connected to the first end of the external connecting rod 11 through the external connecting rod extension 10, and is connected to the first end of the environmental cabin connecting rod 13 through the internal connecting rod extension 12.

[0066] The outer connecting rod 11 passes through the first transmission mechanism through-piece 14.1 and out of the first transition steel shell 6.1, and a first rotating handle 15.1 is formed at its second end;

[0067] The connecting rod 13 in the environmental chamber passes through the second transmission mechanism penetrating member 14.2 and out of the second transition partition 6.2, and a second rotating handle 15.2 is formed at the second end thereof;

[0068] The first transmission mechanism penetration piece 14.1 and the second transmission mechanism penetration piece 14.2 respectively penetrate and are fixed on the first transition steel shell 6.1 and the second transition wall 6.2;

[0069] The third rotating handle 15.3 is formed on the outboard connecting rod extension section 10;

[0070] The fourth rotation handle 15.4 is formed on the connecting rod extension section 12 in the cabin;

[0071] The first connecting rod guide 16.1 is formed on the outboard connecting rod extension 10;

[0072] The second connecting rod guide 16.2 is formed on the connecting rod extension 12 in the cabin;

[0073] The connecting rod 11 outside the cabin and the connecting rod 13 inside the environmental cabin can rotate synchronously and coaxially.

[0074] In addition, it should be understood that, although the terms "first", "second", etc. may be used herein to describe different elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of exemplary embodiments of the present invention, the first element, component, region, layer or part discussed below may also be referred to as the second element, component, region, layer or part.

[0075] Second embodiment;

[0076] refer to Figure 3 As shown, the present invention provides a preferred embodiment of the transmission mechanism through-piece that can be used in the first embodiment. The first transmission mechanism through-piece 14.1 and the second transmission mechanism through-piece 14.2 have the same structure. Taking the first transmission mechanism through-piece 14.1 as an example, the following are described:

[0077] Welding flange 14.3, which passes through and is fixed to the transition steel shell;

[0078] At least one first sealing ring 14.4 formed between the welding flange 14.3 and the transition steel shell;

[0079] The bearing seat 14.5 has one end inserted into the welding flange 14.3;

[0080] A second sealing ring 14.6, which is formed on the connecting rod 11 outside the cabin or the connecting rod 13 inside the environmental cabin and is located between the welding flange 14.3 and the end of the bearing seat 14.5;

[0081] Furthermore, the outboard connecting rod 11 and the outboard connecting rod extension 10 are connected via a universal joint 17;

[0082] The environmental cabin inner connecting rod 13 and the cabin inner connecting rod extension 12 are connected via a universal joint 17 .

[0083] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will also be understood that, unless expressly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, rather than being interpreted in an idealized or overly formal sense.

[0084] The present invention has been described in detail above by way of specific embodiments and examples, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may make many variations and improvements, which should also be considered within the scope of protection of the present invention.

Claims

1. A pressure balancing device for the transition room of a plateau altitude environment simulation cabin, characterized in that: include: The three-way regulating valve (4) is respectively connected to the atmospheric environment pipeline (5), the transition room environment pipeline (6) and the environment pipeline in the environmental chamber (7); A reversing valve (8) is connected to a three-way regulating valve (4) via a three-way valve connecting rod (9) to control its rotation, is connected to a first end of an off-cabin connecting rod (11) via an off-cabin connecting rod extension (10), and is connected to a first end of an on-cabin connecting rod (13) via an on-cabin connecting rod extension (12); An outboard connecting rod (11) passes through a first transmission mechanism penetration piece (14.1) and out of the first transitional steel shell (6.1), and a first rotating handle (15.1) is formed at a second end thereof; A connecting rod (13) in the environmental chamber passes through a second transmission mechanism penetrating piece (14.2) and out of the second transition partition (6.2), and a second rotating handle (15.2) is formed at a second end thereof; The first transmission mechanism penetration piece (14.1) and the second transmission mechanism penetration piece (14.2) respectively penetrate and are fixed on the first transitional steel shell (6.1) and the second transitional wall (6.2); A third rotating handle (15.3) is formed on the outboard connecting rod extension section (10); The fourth rotating handle (15.4) is formed on the connecting rod extension section 12 in the cabin.

2. The pressure balancing device for the transition room of the plateau altitude environment simulation cabin according to claim 1, characterized in that: The reversing valve (8) is a T-type reversing valve.

3. The pressure balancing device for the transition room of the plateau altitude environment simulation cabin according to claim 1, characterized in that: Also includes: A first connecting rod guide device (16.1) is formed on the outboard connecting rod extension section (10); The second connecting rod guide device (16.2) is formed on the connecting rod extension section (12) in the cabin.

4. The pressure balancing device for the transition room of a plateau altitude environment simulation cabin according to claim 1, characterized in that: The first transmission mechanism through-piece (14.1) and the second transmission mechanism through-piece (14.2) have the same structure.

5. The pressure balancing device for the transition room of the plateau altitude environment simulation cabin according to claim 4, characterized in that: The first transmission mechanism through-piece (14.1) and the second transmission mechanism through-piece (14.2) include: Welding flange (14.3), which passes through and is fixed to the transition steel shell; At least one first sealing ring (14.4) formed between the welding flange (14.3) and the transition steel shell; A bearing seat (14.5), one end of which is inserted into the welding flange (14.3); A second sealing ring (14.6) is formed on the connecting rod (11) outside the cabin or the connecting rod (13) inside the environmental cabin and is located between the welding flange (14.3) and the end of the bearing seat (14.5).

6. The pressure balancing device for the transition room of a plateau altitude environment simulation cabin according to any one of claims 1 to 5, characterized in that: The connecting rod (11) outside the cabin and the connecting rod (13) inside the environmental cabin can rotate synchronously on the same axis.

7. The pressure balancing device for the transition room of a plateau altitude environment simulation cabin according to any one of claims 1 to 5, characterized in that: The outboard connecting rod (11) and the outboard connecting rod extension (10) are connected via a universal joint (17); The connecting rod (13) in the environmental cabin and the connecting rod extension section (12) in the cabin are connected via a universal joint (17).

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