A side-opening door for a pressurized cabin

Abstract

The present invention relates to the technical field of pressurized cabins, and in particular to a side-opening door for a pressurized cabin, comprising a cabin body, a cabin door being slidably connected to the interior of the cabin body, a pneumatic lock assembly being installed inside the cabin door, an outer side of a frame being fixedly connected to the cabin body, a lock cavity being provided on the front side of the frame, and an ejection assembly and a limit assembly being respectively installed on the upper and lower sides of the frame, a card slot cooperating with the limit assembly being provided on the cabin door at the upper and lower sides of the pneumatic lock assembly, and an observation plate being fixedly connected to the surface of the cabin door; in the present invention, the device installs a pneumatic lock assembly inside the cabin door, and when the cabin door is closed, the pneumatic lock assembly slides to the interior of the frame, and the pneumatic lock assembly cooperates with the lock cavity, and utilizes the pressure difference between the inside and outside of the pressurized cabin to realize automatic locking and opening, so that this arrangement can not only save space in the cabin, but also automatically lock the cabin door during use, and at the same time ensure that the cabin door is automatically pushed open by the ejection assembly when the cabin pressure is reduced to normal.

Description

Technical Field

[0001] The present invention relates to the technical field of pressurized cabins, in particular to a side-opening door for a pressurized cabin. Background Art

[0002] A pressurized cabin, where the pressurized medium is generally air or oxygen, is used for treatment inside (such as a hyperbaric oxygen chamber in a hospital). The door needs to be locked during pressurization to prevent accidental opening, and opened during decompression to prevent people from being trapped. Traditional pressurized cabin doors are push-open, and locking and opening the door are generally performed by people outside the cabin. When pushed open, the door occupies the internal space of the pressurized cabin and has no self-locking and self-opening functions, which poses certain safety hazards. At the same time, the user is inside the sealed cabin, and the door needs to be opened by people outside the cabin, which increases the user's anxiety. Therefore, a side-opening door for a pressurized cabin is proposed to address the above problems. Summary of the Invention

[0003] The object of the present invention is to provide a side-opening door for a pressurized cabin to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] As an optional solution for a side-opening door for a pressurized cabin described in the present invention, there is provided: a side-opening door for a pressurized cabin, comprising a cabin body, a cabin door being slidably connected to the interior of the cabin body, and a pneumatic lock assembly being installed inside the cabin door, a rubber sealing ring being fixedly connected to the outer edge of the cabin door, a frame being provided on one side of the rubber sealing ring, and the outer side of the frame being fixedly connected to the cabin body, a lock cavity being provided on the front side of the frame, an ejection assembly and a limit assembly being respectively installed on the upper and lower sides of the frame, a card slot cooperating with the limit assembly being provided on the cabin door at the upper and lower sides of the pneumatic lock assembly, an observation plate being fixedly connected to the surface of the cabin door, and a pressure reducing valve being installed on the top of the cabin body.

[0006] As an optional solution for a side-opening door for a pressurized cabin described in the present invention, the pneumatic lock assembly includes a limiting cylinder, a fixing ring and a filter cover, the outer side of the limiting cylinder is fixedly connected to the cabin door, the sliding rod inside the limiting cylinder is connected to a lock column, one end of the lock column is fixedly connected to a sliding disk, and the outer side of the sliding disk is fixedly connected to a first sealing sleeve, and the outer side of the first sealing sleeve is slidably connected to the limiting cylinder.

[0007] As an optional solution for the side-opening door for a pressurized cabin described in the present invention, a first spring is provided on the outside of the lock column, and one end of the first spring is fixedly connected to the sliding disk, and the other end of the first spring is fixedly connected to the limiting cylinder.

[0008] As an optional solution for the side-opening door for a pressurized cabin described in the present invention, the end of the limiting cylinder is fixedly connected to a fixing ring, and the interior of the fixing ring is fixedly connected to a filter cover.

[0009] As an optional solution for a side-opening door for a pressurized cabin described in the present invention, the ejection assembly includes a guide frame, a push rod, and a guide groove. The outer side of the guide frame is fixedly connected to the frame, the rear side of the guide frame is connected to a connecting cylinder, the guide frame is slidably connected to the push rod, and the surface of the push rod is provided with a guide groove and a first sliding groove. The push rod is slidably connected to the guide rod, and the other end of the guide rod is fixedly connected to the guide frame.

[0010] The connecting cylinder is slidably connected to a second sealing sleeve, and the second sealing sleeve is fixedly connected to a guide column;

[0011] A second spring is provided on the outside of the guide rod, and one end of the second spring is fixedly connected to the push rod, and the other end of the second spring is fixedly connected to the guide frame.

[0012] As an optional solution for the side-opening door for a pressurized cabin described in the present invention, a second sliding groove is provided inside the connecting tube, and a second slider is slidably connected inside the second sliding groove, and the other end of the second slider is fixedly connected to the guide column.

[0013] As an optional solution for the side-opening door for a pressurized cabin described in the present invention, a first slider is slidably connected inside the first sliding groove, and one end of the first slider is fixedly connected to the guide frame.

[0014] As an optional solution for the side-opening door for the pressurized cabin described in the present invention, a through hole is provided on the outer side of the guide frame.

[0015] As an optional solution for a side-opening door for a pressurized cabin described in the present invention, the limiting assembly includes a limiting frame, a blocking plate and a third spring, the outer side of the limiting frame is fixedly connected to the frame, the inner side of the limiting frame is slidably connected to a sliding plate, and one end of the sliding plate is fixedly connected to the third spring, and the other end of the third spring is fixedly connected to the blocking plate, the outer side of the blocking plate is fixedly connected to the limiting frame, and the other end of the sliding plate is fixedly connected to the limiting platform.

[0016] As an optional solution for a side-opening door for a pressurized cabin described in the present invention, wherein: the interior of the limit frame is fixedly connected with evenly distributed hollow tubes, and the other end of the hollow tube is connected with a connecting tube, the other end of the connecting tube is connected with an airbag, and a delay valve is installed on the outside of the hollow tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, the device is provided with a pneumatic lock assembly installed inside the cabin door. When the cabin door is closed, the pneumatic lock assembly slides into the interior of the frame and cooperates with the lock cavity to achieve automatic locking and opening by utilizing the pressure difference between the inside and outside of the pressurized cabin. This arrangement not only saves cabin space, but also automatically locks the cabin door during use, and at the same time ensures that the cabin door is automatically pushed open by the ejection assembly when the cabin pressure is reduced to normal.

[0019] When a traditional cabin malfunctions, such as a power outage or a malfunction in the door opening mechanism, the door cannot be opened automatically. In this case, the opening and closing of the cabin door is controlled by pressure. Even if the cabin loses power, the door can be automatically opened by pressure, avoiding accidents for users and improving convenience and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 It is the back view of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the pneumatic lock assembly of the present invention;

[0023] Figure 4 Schematic diagram of the structure of the ejection assembly of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the limiting component of the present invention.

[0025] In the figure: 1, cabin; 2, cabin door; 3, observation panel; 4, rubber sealing ring; 5, pneumatic lock assembly; 501, limit cylinder; 502, fixing ring; 503, filter cover; 504, lock cylinder; 505, sliding plate; 506, first sealing sleeve; 507, first spring; 6, frame; 7, lock chamber; 8, ejector assembly; 801, guide frame; 802, ejector rod; 803, guide groove; 804, connecting cylinder; 805, second sealing sleeve; 806, Guide column; 807, second spring; 808, guide rod; 809, through hole; 810, first slide groove; 811, first slider; 812, second slide groove; 813, second slider; 9, limit assembly; 901, limit frame; 902, blocking plate; 903, third spring; 904, sliding plate; 905, limit platform; 906, hollow tube; 907, connecting tube; 908, airbag; 909, delay valve; 10, slot; 11-pressure reducing valve. DETAILED DESCRIPTION

[0026] Example 1:

[0027] See also Figure 1 and 2, the present invention provides a technical solution:

[0028] A side-opening door for a pressurized cabin comprises a cabin body 1, a cabin door 2 is slidably connected to the interior of the cabin body 1, and a pneumatic lock assembly 5 is installed inside the cabin door 2, the outer edge of the cabin door 2 is fixedly connected to a rubber sealing ring 4, and the rubber sealing ring 4 is covered on the outside of the cabin door 2 to ensure the sealing of the equipment and prevent gas leakage. One side of the rubber sealing ring 4 is provided with a frame 6, and the outer side of the frame 6 is fixedly connected to the cabin body 1, and a lock cavity 7 is provided on the front side of the frame 6. An ejection assembly 8 and a limit assembly 9 are respectively installed on the upper and lower sides of the frame 6. The cabin door 2 on the upper and lower sides of the pneumatic lock assembly 5 is provided with a card slot 10 that cooperates with the limit assembly 9. An observation panel 3 is fixedly connected to the surface of the cabin door 2. The arrangement of the observation panel 3 makes it convenient for staff and users to understand the internal and external conditions through it, which can effectively reduce the anxiety of users. A pressure reducing valve 11 is installed on the top of the cabin body 1. The cabin door 2 cannot be opened when it is not decompressed, and this pressure reducing valve 11 is open when the power is off. In this way, when the power is off, the cabin body 1 is decompressed and the cabin door 2 is opened.

[0029] During use, when closing the door, the door 2 is first moved manually, and the pneumatic lock assembly 5 inside the door 2 is slid to the inside of the frame 6, and the limit assembly 9 is first fixed in conjunction with the card slot 10. At this time, the inside of the cabin body 1 is pressurized, and the pneumatic lock assembly 5 cooperates with the lock cavity 7 to use the pressure difference between the inside and outside of the pressurized cabin to achieve automatic locking and opening. This setting can not only save space in the cabin, but also automatically lock the door 2 during use. At the same time, it ensures that the door 2 is automatically pushed open by the ejection assembly 8 when the cabin pressure is reduced to normal. In the event of a fault, the cabin is automatically depressurized. This setting does not require electricity to achieve automatic opening, reducing the anxiety of users.

[0030] Example 2

[0031] This embodiment is an improvement made to Example 1. Figure 1 、 Figure 2 and Figure 3 Specifically, the pneumatic lock assembly 5 includes a limiting cylinder 501, a fixing ring 502 and a filter cover 503. The outer side of the limiting cylinder 501 is fixedly connected to the cabin door 2. The sliding rod inside the limiting cylinder 501 is connected to a lock column 504. One end of the lock column 504 is fixedly connected to a sliding disk 505, and the outer side of the sliding disk 505 is fixedly connected to a first sealing sleeve 506. The outer side of the first sealing sleeve 506 is slidably connected to the limiting cylinder 501. The first sealing sleeve 506 is used to play a sealing role to prevent gas leakage.

[0032] A first spring 507 is provided on the outside of the above-mentioned lock column 504, and one end of the first spring 507 is fixedly connected to the sliding disk 505, and the other end of the above-mentioned first spring 507 is fixedly connected to the limiting cylinder 501. When the cabin door 2 is opened, the pressure inside the cabin body 1 is reduced to normal, and the first spring 507 is used to push the sliding disk 505 to separate the lock column 504 from the lock cavity 7.

[0033] The end of the above-mentioned limiting cylinder 501 is fixedly connected to a fixing ring 502, and the inside of the fixing ring 502 is fixedly connected to a filter cover 503. The filter cover 503 is set to filter impurities entering the limiting cylinder 501 to ensure the normal sliding of the sliding plate 505.

[0034] During use, the hatch 2 is moved manually, and when the hatch 2 moves to the inside of the frame 6, its limiting assembly 9 first cooperates with the card slot 10 on the outside of the hatch 2 to achieve fixation. When the lock column 504 inside the limiting cylinder 501 is aligned with the lock cavity 7, the interior of the cabin body 1 is squeezed, and air enters the limiting cylinder 501 through the filter cover 503, thereby moving the sliding disk 505, and the sliding disk 505 drives the lock column 504 to enter the lock cavity 7 to achieve the purpose of fixing the hatch 2. At the same time, when the cabin body 1 is pressurized, its air squeezes out the assembly 8 and separates from the hatch 2. At the same time, the limiting assembly 9 separates from the hatch 2, and only the pneumatic lock assembly 5 fixes the hatch 2.

[0035] Example 3

[0036] This embodiment is an improvement made to Example 2. Figure 1 、 Figure 2 and Figure 4 Specifically, the ejection assembly 8 includes a guide frame 801, a push rod 802 and a guide groove 803. The outer side of the guide frame 801 is fixedly connected to the frame 6. The rear side of the guide frame 801 is connected to a connecting tube 804. The interior of the guide frame 801 is slidably connected to the push rod 802, and the surface of the push rod 802 is provided with a guide groove 803 and a first slide groove 810. The interior of the push rod 802 is slidably connected to the guide rod 808, and the other end of the guide rod 808 is fixedly connected to the guide frame 801. One side of the interior of the guide groove 803 is provided with an inclined surface, and cooperates with the inclined surface at the bottom of the guide column 806 to push the push rod 802 to move.

[0037] The second sealing sleeve 805 is slidably connected to the interior of the connecting tube 804, and the guide column 806 is fixedly connected to the interior of the second sealing sleeve 805;

[0038] A second spring 807 is provided on the outside of the guide rod 808, and one end of the second spring 807 is fixedly connected to the push rod 802, and the other end of the second spring 807 is fixedly connected to the guide frame 801. The setting of the guide rod 808 is used to ensure the stable movement of the push rod 802.

[0039] A second slide groove 812 is provided inside the connecting tube 804, and a second slider 813 is slidably connected inside the second slide groove 812. The other end of the second slider 813 is fixedly connected to the guide column 806. The second slider 813 is provided to control the moving range of the guide column 806 to prevent the guide column 806 from separating from the connecting tube 804.

[0040] The first slide groove 810 is internally slidably connected with a first slider 811, and one end of the first slider 811 is fixedly connected to the guide frame 801. The first slider 811 is configured to control the sliding distance of the push rod 802 to prevent the push rod 802 from separating from the guide frame 801.

[0041] A through hole 809 is provided on the outer side of the guide frame 801 . The through hole 809 is used to ensure that the air in the area where the second spring 807 is located is discharged normally.

[0042] When in use, its push rod 802 first contacts the cabin door 2, and the movement of the push rod 802 is overcome by manual pressure. When the limit assembly 9 limits the cabin door 2, the interior of the cabin body 1 is pressurized, and the air squeezes the guide column 806. The guide column 806 slides with the connecting tube 804, and the guide column 806 cooperates with the guide groove 803 on the outside of the push rod 802 to push the push rod 802 to the side of the second spring 807, so that it squeezes the second spring 807. At this time, the push rod 802 cannot contact the cabin door 2. When it needs to open the cabin door 2, the interior of the cabin body 1 is decompressed, and the guide column 806 is sucked out. At this time, the guide column 806 is separated from the guide groove 807. At this time, under the action of the second spring 807, the push rod 802 pushes the cabin door 2 out, realizing the function of automatic door opening.

[0043] Example 4

[0044] This embodiment is an improvement made to the implementation of Example 3. Figure 1 、 Figure 2 and Figure 5 Specifically, the above-mentioned limit assembly 9 includes a limit frame 901, a blocking plate 902 and a third spring 903. The outer side of the above-mentioned limit frame 901 is fixedly connected to the frame 6. The inside of the above-mentioned limit frame 901 is slidably connected with a sliding plate 904, and one end of the sliding plate 904 is fixedly connected to the third spring 903, and the other end of the third spring 903 is fixedly connected to the blocking plate 902. The outer side of the above-mentioned blocking plate 902 is fixedly connected to the limit frame 901, and the other end of the above-mentioned sliding plate 904 is fixedly connected to the limit platform 905.

[0045] The limit frame 901 is fixedly connected to the inside of uniformly distributed hollow tubes 906, and the other end of the hollow tube 906 is connected to a connecting tube 907, and the other end of the connecting tube 907 is connected to an airbag 908. A delay valve 909 is installed on the outside of the hollow tube 906. The delay valve 909 is set to ensure that the gas inside the airbag 908 is slowly discharged, so as to ensure that the pneumatic lock assembly 5 is first separated from the lock cavity 7, and then the limit platform 905 is extended under the action of the third spring 903.

[0046] When the hatch 2 is pushed manually, it is impossible to continue to push the hatch 2 manually. To avoid this situation, a limiting component 9 is set on the outside of the frame 6. When the hatch 2 slides to the inside of the frame 6, the hatch 2 squeezes the limiting platform 905, and the limiting platform 905 drives the sliding plate 904 to move and squeezes the third spring 903. When the limiting platform 905 slides to the inside of the card slot 10, the purpose of fixing the hatch 2 is achieved. At the same time, when the inside of the cabin body 1 is pressurized, the air enters the inside of the connecting pipe 907 through the hollow tube 906 and enters the inside of the airbag 908. At this time, the airbag 908 bulges and is used to push the sliding plate 904. The sliding plate 904 is separated from the card slot 10, which is convenient for the separation of the limiting component 9 from the card slot 10 during decompression, facilitating the subsequent opening of the hatch 2.

[0047] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A side-opening door for a pressurized cabin, comprising a cabin body (1), characterized in that: The cabin body (1) is slidably connected to a cabin door (2), and a pneumatic lock assembly (5) is installed inside the cabin door (2). The outer edge of the cabin door (2) is fixedly connected to a rubber sealing ring (4). A frame (6) is provided on one side of the rubber sealing ring (4), and the outer side of the frame (6) is fixedly connected to the cabin body (1). A lock cavity (7) is provided on the front side of the frame (6). An ejection assembly (8) and a limit assembly (9) are respectively installed on the upper and lower sides of the frame (6). The cabin door (2) at the upper and lower sides of the pneumatic lock assembly (5) is provided with a card slot (10) that cooperates with the limit assembly (9). An observation plate (3) is fixedly connected to the surface of the cabin door (2). A pressure reducing valve (11) is installed on the top of the cabin body (1); the pneumatic lock assembly (5) includes a limit cylinder (501), a fixing ring (502) and a filter cover (503). The outer side of the limit cylinder (501) is fixedly connected to the cabin door (2). The limiting cylinder (501) is internally slidably connected to a lock column (504), one end of the lock column (504) is fixedly connected to a sliding disk (505), and the outer side of the sliding disk (505) is fixedly connected to a first sealing sleeve (506), and the outer side of the first sealing sleeve (506) is slidably connected to the limiting cylinder (501); the ejection assembly (8) includes a guide frame (801), a push rod (802) and a guide groove (803), the outer side of the guide frame (801) is fixedly connected to the frame (6), the rear side of the guide frame (801) is connected to a connecting cylinder (804), the guide frame (801) is internally slidably connected to the push rod (802), and the surface of the push rod (802) is provided with a guide groove (803) and a first sliding groove (810), the push rod (802) is internally slidably connected to a guide rod (808), and the other end of the guide rod (808) is fixedly connected to the guide frame (801); The connecting tube (804) is slidably connected to a second sealing sleeve (805) inside, and the second sealing sleeve (805) is fixedly connected to a guide column (806) inside; A second spring (807) is provided on the outside of the guide rod (808), and one end of the second spring (807) is fixedly connected to the push rod (802), and the other end of the second spring (807) is fixedly connected to the guide frame (801).

2. The side-opening door for a pressurized cabin according to claim 1, characterized in that: A first spring (507) is provided on the outside of the lock column (504), and one end of the first spring (507) is fixedly connected to the sliding disk (505), and the other end of the first spring (507) is fixedly connected to the limiting cylinder (501).

3. The side-opening door for a pressurized cabin according to claim 1, characterized in that: The end of the limiting cylinder (501) is fixedly connected to a fixing ring (502), and the interior of the fixing ring (502) is fixedly connected to a filter cover (503).

4. The side-opening door for a pressurized cabin according to claim 1, characterized in that: A second sliding groove (812) is provided inside the connecting tube (804), and a second sliding block (813) is slidably connected inside the second sliding groove (812), and the other end of the second sliding block (813) is fixedly connected to the guide column (806).

5. The side-opening door for a pressurized cabin according to claim 1, characterized in that: A first sliding block (811) is slidably connected inside the first sliding groove (810), and one end of the first sliding block (811) is fixedly connected to the guide frame (801).

6. The side-opening door for a pressurized cabin according to claim 1, characterized in that: A through hole (809) is provided on the outer side of the guide frame (801).

7. The side-opening door for a pressurized cabin according to claim 1, characterized in that: The limiting assembly (9) comprises a limiting frame (901), a blocking plate (902) and a third spring (903); the outer side of the limiting frame (901) is fixedly connected to the frame (6); the inner side of the limiting frame (901) is slidably connected to a sliding plate (904); one end of the sliding plate (904) is fixedly connected to the third spring (903); the other end of the third spring (903) is fixedly connected to the blocking plate (902); the outer side of the blocking plate (902) is fixedly connected to the limiting frame (901); and the other end of the sliding plate (904) is fixedly connected to the limiting platform (905).

8. The side-opening door for a pressurized cabin according to claim 7, characterized in that: The limiting frame (901) is internally fixedly connected to uniformly distributed hollow tubes (906), and the other end of the hollow tube (906) is connected to a connecting tube (907), and the other end of the connecting tube (907) is connected to an air bag (908). A delay valve (909) is installed on the outside of the hollow tube (906).

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