Cabin door structure and oxygen cabin

Abstract

The embodiment of the utility model relates to a cabin door structure and an oxygen cabin. The cabin door structure comprises a door frame, a door body and a door arm, and the door body is connected with the door frame through the door arm; the door arm comprises a base fixedly connected with the door frame and a door arm body rotationally connected with the base in the vertical direction. The door arm main body is rotationally connected with the center of the door body; a plurality of first clamping teeth distributed in an annular array are fixed to the side, facing the door frame, of the door body, and a plurality of second clamping teeth distributed in an annular array are fixed to the side, facing the door body, of the door frame. The first latch and the second latch can be clamped and separated by rotating the door body; the door arm body is provided with a locking assembly used for preventing the door body from rotating. The door body of the oxygen cabin is easy to open and close, after a user needs to enter the cabin body, the door body is pulled to the second moving position, then the door body is rotated to the second rotating position, and the door body can be closed and locked; when the user needs to leave the cabin body, the door body is rotated to the first rotating position, and then the door body is pushed outwards, so that the door body can be opened.

Description

Technical Field

[0001] The utility model relates to a door structure, in particular to a hatch door structure and an oxygen chamber adopting the hatch door structure. Background Art

[0002] An oxygen chamber is a device that inputs pure oxygen and purified compressed air to form an oxygen-rich environment with a pressure greater than one atmosphere inside the chamber. Users can inhale high-concentration oxygen inside the oxygen chamber to increase the blood oxygen content of the human body, which plays an important role in repairing cells, promoting metabolism and improving the sub-healthy state.

[0003] The hatch door structure is a door structure used to enclose or open a space. Considering its usability in the design, providing a hatch door structure suitable for an oxygen chamber and easy to use is a problem that needs to be solved currently. Summary of the Utility Model

[0004] In view of the above problems, the present utility model is proposed to provide a hatch door structure and an oxygen chamber that overcome the above problems or at least partially solve the above problems.

[0005] In the first aspect of the embodiment of the present utility model, a hatch door structure is provided. The hatch door structure includes a door frame, a door body, and a door arm. The door body is connected to the door frame through the door arm. The door arm includes a base fixedly connected to the door frame and a door arm main body rotatably connected to the base in the vertical direction. The door arm main body is rotatably connected to the center of the door body. A plurality of first teeth distributed in a circular array are fixed on one side of the door body facing the door frame, and a plurality of second teeth distributed in a circular array are fixed on one side of the door frame facing the door body. Each second tooth is located at the edge of the entrance and exit surrounded by the door frame. When the door body is in the state of closing the door frame and the door body rotates to the first rotation position, the first teeth are separated from the second teeth. When the door body is in the state of closing the door frame and the door body rotates to the second rotation position, the first teeth are engaged with the second teeth. The door arm main body is provided with a locking component for preventing the door body from rotating. The locking component includes a lock body rotatably connected to the door arm main body in the vertical direction. The lock body is formed with a lock tongue and a driving part. When the door body is in the first rotation position and the door body moves from the first moving position to the second moving position close to the door frame, the driving part presses against the door frame, and under the reaction force of the door frame, the lock body rotates synchronously in the first direction, and the lock tongue gradually leaves the lock groove opened on the door body. The locking component further includes an elastic member. When the door body is in the first rotation position and the door body moves from the second moving position to the first moving position, the elastic member urges the lock body to rotate in the second direction opposite to the first direction, and the lock tongue gradually enters the lock groove. When the door body is in the second moving position, the door body closes the door frame.

[0006] In one embodiment, the first latch teeth are composed of a first base portion and a first extension portion formed by extending from the top end of the first base portion toward the center of the virtual first ring where each first latch tooth is located. The second latch teeth may be composed of a second base portion and a second extension portion formed by extending from the top end of the second base portion away from the center of the virtual second ring where each second latch tooth is located. When the door body is in the state of closing the door frame and the door body rotates to the second rotation position, the first extension portion and the second extension portion are buckled together.

[0007] In one embodiment, the driving portion is cylindrical, and its virtual axis is arranged vertically.

[0008] In one embodiment, the elastic member is a compression spring. A spring mounting hole is formed in the door arm main body, and a first upright column for restricting lateral bending of the elastic member extends upward from the center of the bottom of the spring mounting hole; a second upright column extending into the axial center hole of the elastic member is formed in the lock body, one end of the elastic member abuts against the bottom of the spring mounting hole, and the other end abuts against the lock body.

[0009] In one embodiment, the door arm main body is provided with an arc-shaped limiting groove with an opening facing the door body, and the door body is provided with a protrusion extending into the arc-shaped limiting groove. When the protrusion abuts against the inner wall of one end of the arc-shaped limiting groove, the door body is in the first rotation position; when the protrusion abuts against the inner wall of the other end of the arc-shaped limiting groove, the door body is in the second rotation position.

[0010] In one embodiment, the base is provided with a stop block. When the door body moves from the first moving position to the third moving position away from the door frame, the stop block abuts against the side of the door arm main body facing away from the door body.

[0011] In one embodiment, the hatch structure further includes a position sensor, an air pump, and a control circuit. The control circuit is electrically connected to both the position sensor and the air pump; the entrance and exit surrounded by the door frame is circular, the door body is formed with an annular protrusion that can extend into the entrance and exit surrounded by the door frame, an annular sealing ring mounting groove is concavely formed along the circumferential direction on the inner ring wall surface of the door frame, and an inflatable sealing ring is arranged in the sealing ring mounting groove; the air inlet of the inflatable sealing ring is connected to the air delivery end of the air pump through a pipeline; when the control circuit receives the position information sent by the position sensor indicating that the door body is in the state of closing the door frame and the door body is in the second rotation position, the control circuit controls the air pump to work, and the air pump delivers air to the inflatable sealing ring to make the inflatable sealing ring expand and fill the gap between the inner ring wall surface of the door frame and the annular protrusion; the inflatable sealing ring is provided with an exhaust pipeline, and the exhaust pipeline is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected to the control circuit.

[0012] In one embodiment, two handles are provided on the side of the door body close to the door frame.

[0013] In the second aspect of the embodiments of the present utility model, an oxygen chamber is provided. The oxygen chamber includes a chamber body, an oxygen supply system, and the door structure as described in the first aspect; the door frame is fixed to the chamber body.

[0014] The opening and closing operations of the door body of the oxygen chamber in this embodiment are simple. After the user enters the chamber body, they pull the door body to the second moving position, and then rotate the door body to the second rotating position to close and lock the door body; when the user needs to leave the chamber body, they rotate the door body to the first rotating position, and then push the door body outwards to open the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The included drawings are used to provide a further understanding of the embodiments of the present application. They form a part of the description and are used to illustrate the implementation manners of the present application and, together with the textual description, to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0016] Figure 1 is a schematic structural diagram of an exemplary embodiment of the oxygen chamber of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the oxygen chamber when the door body is in the open state;

[0018] Figure 3 is Figure 2 an enlarged view of part A in

[0019] Figure 4 is a partial cross-sectional view of the oxygen chamber;

[0020] Figure 5 is Figure 4 an enlarged view of part B in

[0021] Figure 6 is a partial cross-sectional view of the oxygen chamber when the door body is in the open state;

[0022] Figure 7 is Figure 6 an enlarged view of part C in

[0023] Figure 8 is a schematic structural diagram of the structure formed by the door body and the door arm;

[0024] Figure 9 is Figure 8 an enlarged view of part D in

[0025] Figure 10 is a schematic structural diagram of the door arm.

[0026] Description of reference numerals: 1, cabin body; 2, base; 3, door frame; 4, door body; 5, door arm; 6, pedestal; 7, door arm main body; 8, rotating shaft; 9, slewing bearing; 10, first cogs; 11, second cogs; 12, first base; 13, first extension; 14, second base; 15, second extension; 16, lock body; 17, lock tongue; 18, driving part; 19, lock groove; 20, elastic member; 21, handle; 22, spring mounting hole; 23, first upright post; 24, second upright post; 25, arc-shaped limiting groove; 26, protrusion; 27, stop block; 28, first position sensor; 29, annular protrusion; 30, inflatable sealing ring. Detailed implementation manners

[0027] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. Those of ordinary skill in the art can make various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

[0028] In the description of the present utility model, the terms "center", "longitudinal", "transverse", "length", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., which are mentioned or may be mentioned, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Additionally, the terms "include", "comprise" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The oxygen chamber according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0032] Referring to Figures 1 to 7 , the oxygen chamber according to an embodiment of the present invention includes a chamber body 1, an oxygen supply system, and a door structure. A base 2 may be provided below the chamber body 1, and the oxygen supply system may be disposed within the base 2 for supplying oxygen to the chamber enclosed by the chamber body 1 and the door structure. The specific structure of the oxygen supply system is not limited in this embodiment.

[0033] The door structure includes a door frame 3, a door body 4, and a door arm 5. The door frame 3 is fixed to the chamber body 1, and the door body 4 is connected to the door frame 3 through the door arm 5. The door arm 5 includes a base 6 fixedly connected to the door frame 3 and a door arm main body 7 rotatably connected to the base 6 in the vertical direction. Specifically, the base 6 and the door arm main body 7 may be connected through a vertically arranged rotating shaft 8. The door arm main body 7 is rotatably connected to the center of the door body 4. Specifically, the door arm main body 7 and the door body 4 may be connected through a vertically arranged turntable bearing 9.

[0034] Now referring to Figure 2 , a plurality of first teeth 10 distributed in a circular array are fixed on one side of the door body 4 facing the door frame 3, and a plurality of second teeth 11 distributed in a circular array are fixed on one side of the door frame 3 facing the door body 4. Each of the second teeth 11 is located at the edge of the entrance and exit surrounded by the door frame 3. When the door body 4 is in the state of closing the door frame 3 and the door body 4 rotates to the first rotation position, the first teeth 10 and the second teeth 11 are separated. At this time, when the door body 4 is pushed outwards, the door body 4 can be opened. When the door body 4 is in the state of closing the door frame 3 and the door body 4 rotates to the second rotation position, the first teeth 10 and the second teeth 11 are engaged, and the door body 4 is locked.

[0035] As Figure 3 shown, the first teeth 10 may be composed of a first base portion 12 and a first extension portion 13 formed by extending from the top of the first base portion 12 towards the center of the virtual first ring where each first tooth 10 is located. The second teeth 11 may be composed of a second base portion 14 and a second extension portion 15 formed by extending from the top of the second base portion 14 away from the center of the virtual second ring where each second tooth 11 is located. When the door body 4 is in the state of closing the door frame 3 and the door body 4 rotates to the second rotation position, the first extension portion 13 and the second extension portion 15 are buckled together, that is, the first teeth 10 and the second teeth 11 are engaged. At this time, when an outward thrust is applied to the door body 4, the door body 4 cannot be opened.

[0036] Now referring to Figures 4 to 9, the door arm main body 7 is provided with a locking component for preventing the door body 4 from rotating. The locking component includes a lock body 16 rotatably connected to the door arm main body 7 in the vertical direction. The lock body 16 is formed with a lock tongue 17 and a driving part 18. When the door body 4 is in the first rotation position and the door body 4 moves from the first moving position to the second moving position close to the door frame 3, the driving part 18 presses against the door frame 3. Under the reaction force of the door frame 3, the lock body 16 rotates synchronously in the first direction, and the lock tongue 17 gradually leaves the lock groove 19 formed in the door body 4. The locking component further includes an elastic member 20. When the door body 4 is in the first rotation position and the door body 4 moves from the second moving position to the first moving position, the elastic member 20 urges the lock body 16 to rotate in the second direction opposite to the first direction, and the lock tongue 17 gradually enters the lock groove 19. When the door body 4 is in the second moving position, the door body 4 closes the door frame 3. Thus, the locking component ensures that the door body 4 cannot be rotated during and after the opening process, and always remains in the state of the first rotation position. When the user enters the cabin 1 and pulls the door body 4 to move to the second moving position, the door body 4 can be rotated. When the user rotates the door body 4 to the second rotation position, the door body 4 can be closed, and the operation is simple. To facilitate the rotation of the door body 4, two handles 21 can be provided on one side of the door body 4 close to the door frame 3.

[0037] Preferably, the driving part 18 is cylindrical, and its virtual axis is arranged vertically.

[0038] In this embodiment, the elastic member 20 is a compression spring. The door arm main body 7 is formed with a spring installation hole 22. A first upright column 23 for restricting the lateral bending of the elastic member 20 extends upward from the center of the bottom of the spring installation hole 22. The lock body 16 is formed with a second upright column 24 extending into the axial center hole of the elastic member 20. One end of the elastic member 20 abuts against the bottom of the spring installation hole 22, and the other end abuts against the lock body 16.

[0039] Now refer to Figures 8 to 10 , the door arm main body 7 is provided with an arc-shaped limiting groove 25 with an opening facing the door body 4. The door body 4 is provided with a protrusion 26 extending into the arc-shaped limiting groove 25. When the protrusion 26 abuts against the inner wall of one end of the arc-shaped limiting groove 25, the door body 4 is in the first rotation position; when the protrusion 26 abuts against the inner wall of the other end of the arc-shaped limiting groove 25, the door body 4 is in the second rotation position. Refer to Figure 10 From the perspective of , when the protrusion 26 abuts against the upper inner wall of the arc-shaped limiting groove 25, the door body 4 is in the first rotation position; when the protrusion 26 abuts against the lower inner wall of the arc-shaped limiting groove 25, the door body 4 is in the second rotation position.

[0040] In this embodiment, the base 6 is provided with a stop block 27. When the door body 4 moves from the first moving position to the third moving position away from the door frame 3, that is, when it moves toFigure 6 When in the position shown, the stopper 27 abuts against the side of the door arm body 7 facing away from the door body 4. Preferably, the stopper 27 is wrapped with an elastic material.

[0041] The hatch structure may further include a position sensor, an air pump, and a control circuit. The position sensor includes a first position sensor 28 for sensing whether the door body 4 has moved to the second moving position, and a second position sensor for sensing whether the door body 4 has rotated to the first rotation position and the second rotation position. The control circuit is electrically connected to both the position sensor and the air pump.

[0042] Now return Figure 2 and Figure 3 , the entrance and exit surrounded by the door frame 3 is circular, and the door body 4 is formed with an annular protrusion 29 that can extend into the entrance and exit surrounded by the door frame 3. The inner ring wall surface of the door frame 3 is recessed circumferentially with an annular sealing ring installation groove, and an inflatable sealing ring 30 is arranged in the sealing ring installation groove. The air inlet of the inflatable sealing ring 30 is connected to the air delivery end of the air pump through a pipeline. When the control circuit receives the position information sent by the position sensor indicating that the door body 4 is in the state of closing the door frame 3 and the door body 4 is in the second rotation position, the control circuit controls the air pump to work, and the air pump delivers air to the inflatable sealing ring 30, so that the inflatable sealing ring 30 expands to fill the gap between the inner ring wall surface of the door frame 3 and the annular protrusion 29.

[0043] The inflatable sealing ring 30 may be provided with an exhaust pipeline, and the exhaust pipeline is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected to the control circuit. When the control circuit receives the position information sent by the position sensor indicating that the door body 4 is in the first rotation position, it controls the electromagnetic valve to open to discharge the air in the inflatable sealing ring 30, facilitating the opening of the door body 4.

[0044] In one embodiment, the start and stop of the air pump and the electromagnetic valve can also be controlled by a user pressing a physical button.

[0045] The opening and closing operations of the door body 4 of the oxygen chamber in this embodiment are simple. After the user enters the cabin 1, the user needs to pull the door body 4 to the second moving position, and then rotate the door body 4 to the second rotation position to close and lock the door body 4; when the user needs to leave the cabin 1, rotate the door body 4 to the first rotation position, and then push the door body 4 outwards to open the door body 4. During and after the opening process of the door body 4, the locking assembly prevents the door body 4 from rotating and keeps it in the first rotation position.

Claims

1. A door structure, characterized in that: It comprises a door frame, a door body, and a door arm, wherein the door body is connected to the door frame through the door arm; the door arm comprises a base fixedly connected to the door frame, and a door arm main body rotatably connected to the base in a vertical direction; the door arm main body is rotatably connected to the center of the door body; a plurality of first latching teeth distributed in a circular array are fixed on the side of the door body facing the door frame, and a plurality of second latching teeth distributed in a circular array are fixed on the side of the door frame facing the door body, and each second latching tooth is located at the edge of the entrance and exit surrounded by the door frame; when the door body is in a state of closing the door frame and the door body is rotated to a first rotation position, the first latching tooth is separated from the second latching tooth; when the door body is in a state of closing the door frame and the door body is rotated to a second rotation position, the first latching tooth is engaged with the second latching tooth; the door arm main body is provided with A locking assembly for preventing a door body from rotating, the locking assembly comprising a lock body connected to a door arm body in a vertical direction, the lock body being formed with a lock tongue and a driving portion, when the door body is in a first rotating position and when the door body moves from the first moving position to a second moving position close to the door frame, the driving portion is pressed against the door frame, and under the action of a reaction force of the door frame, the lock body rotates synchronously in the first direction, and the lock tongue gradually leaves a lock slot provided in the door body; the locking assembly also comprises an elastic member, when the door body is in the first rotating position and when the door body moves from the second moving position to the first moving position, the elastic member prompts the lock body to rotate in a second direction opposite to the first direction, and the lock tongue gradually enters the lock slot; when the door body is in the second moving position, the door body closes the door frame.

2. The door structure according to claim 1, characterized in that: The first latch tooth consists of a first base and a first extension portion formed by extending the top end of the first base toward the center of a virtual first ring where each first latch tooth is located; the second latch tooth can consist of a second base and a second extension portion formed by extending the top end of the second base away from the center of a virtual second ring where each second latch tooth is located. When the door body is in a closed door frame state and the door body is rotated to the second rotation position, the first extension portion is buckled with the second extension portion.

3. The door structure according to claim 1, characterized in that: The driving part is cylindrical, and its virtual axis is arranged vertically.

4. The door structure according to claim 1, characterized in that: The elastic part is a compression spring, and the door arm body is formed with a spring mounting hole. The bottom center of the spring mounting hole extends upward to form a first column for limiting the lateral bending of the elastic part; the lock body is formed with a second column extending into the axial center hole of the elastic part, and one end of the elastic part abuts against the bottom of the spring mounting hole, and the other end abuts against the lock body.

5. The door structure according to claim 1, characterized in that: The door arm main body is provided with an arc-shaped limiting groove opening toward the door body, and the door body is provided with a protrusion extending into the arc-shaped limiting groove. When the protrusion abuts against the inner wall of one end of the arc-shaped limiting groove, the door body is in a first rotation position; when the protrusion abuts against the inner wall of the other end of the arc-shaped limiting groove, the door body is in a second rotation position.

6. The door structure according to claim 1, characterized in that: The base is provided with a stopper, and when the door body moves from the first moving position to the third moving position away from the door frame, the stopper abuts against a side of the door arm main body facing away from the door body.

7. The door structure according to claim 1, characterized in that: It also includes a position sensor, an air pump, and a control circuit, and the control circuit is electrically connected to the position sensor and the air pump; the entrance and exit surrounded by the door frame is circular, and the door body is formed with an annular protrusion that can extend into the entrance and exit surrounded by the door frame, and the inner ring wall of the door frame is concave inward along the circumferential direction to have an annular sealing ring installation groove, and the sealing ring installation groove is arranged with an inflatable sealing ring; the air inlet of the inflatable sealing ring is connected to the air delivery end of the air pump through a pipeline; when the control circuit receives the position information sent by the position sensor indicating that the door body is in a closed door frame state and the door body is in the second rotation position, the control circuit controls the air pump to work, and the air pump delivers air to the inflatable sealing ring, so that the inflatable sealing ring expands and fills the gap between the inner ring wall of the door frame and the annular protrusion; the inflatable sealing ring is provided with an exhaust pipe, and the exhaust pipe is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected to the control circuit.

8. The door structure according to any one of claims 1 to 7, characterized in that: The door body is provided with two handles on one side close to the door frame.

9. An oxygen chamber, characterized in that: It comprises a cabin body, an oxygen supply system, and a cabin door structure as described in any one of claims 1 to 8; the door frame is fixed to the cabin body.

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