Novel micro-pressure oxygen-enriched cabin door

Abstract

The utility model discloses a novel micropressure oxygen enrichment cabin door which comprises a cabin body and a cabin door body hinged to the cabin body, a cabin door hole is formed in one end face, close to the cabin door body, of the cabin body, a door proximity switch and a door suction assembly are arranged in the cabin body, and the door proximity switch and the door suction assembly are both installed on the inner wall of one end face, close to the cabin door body, of the cabin body. A locking ring is rotationally connected to the hole wall of the cabin door hole, a wedge-shaped block is arranged on the inner wall of the locking ring, an L-shaped clamping block matched with the wedge-shaped block in a wedged mode is arranged on the inner side wall of the cabin door, and the locking ring is controlled to rotate through a locking worm mechanism installed in the cabin body. A full-automatic locking mode is adopted, the cabin door is sucked through the door suction assembly and pulled towards the cabin body, then the locking worm mechanism drives the locking ring to rotate, the wedge-shaped block on the locking ring and the L-shaped clamping block on the cabin door are mutually wedged, closing of the cabin door is completed, after pressurization is conducted, the limiting clamping pin is clamped on the toothed locking disc to lock the worm, and the cabin door is locked. Therefore, self-locking is completed, noise is low, locking is reliable, and the experience feeling is good.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen-enriched equipment, in particular to a new type of micro-pressure oxygen-enriched cabin door. Background Art

[0002] The micro-pressure oxygen cabin is a special equipment for micro-pressure oxygen therapy. The application range of the micro-pressure oxygen cabin is very wide, and it is mainly used for the health recovery of hypoxic diseases, beauty care, energy recovery, etc. At present, there are two main forms of micro-pressure oxygen-enriched cabin doors on the market. One is a rotary door manual pressing type, and the other is a sliding door cylinder pressing type. The rotary door manual pressing type has disadvantages. When opening, people need to operate the pressing. After a certain pressure is formed in the cabin, the operator can let go, and users need to be trained. The sliding door cylinder pressing type uses a cylinder for hard contact pressing, which is likely to cause a certain degree of damage to the door body during the pressing process, and the sliding door is prone to generate noise, resulting in a poor experience. Considering the characteristics of the above two types of doors, it is urgent to develop a new type of cabin door to avoid the above disadvantages. Content of the Utility Model

[0003] The purpose of the utility model is to provide a new type of micro-pressure oxygen-enriched cabin door to solve the above problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A new type of micro-pressure oxygen-enriched cabin door of the utility model includes a cabin body and a cabin door hinged to the cabin body. A cabin door hole is opened on one end face of the cabin body close to the cabin door. A door proximity switch and a door suction component are arranged inside the cabin body, and both the door proximity switch and the door suction component are installed on the inner wall of one end face of the cabin body close to the cabin door. A lock ring is rotatably connected to the hole wall of the cabin door hole, and several wedge-shaped blocks are arranged on the inner wall of the lock ring. L-shaped clamping blocks equal in number to the wedge-shaped blocks are arranged on the inner side wall of the cabin door. The L-shaped clamping blocks and the wedge-shaped blocks are wedged with each other. The lock ring is controlled to rotate by a locking worm mechanism installed inside the cabin body. The locking worm mechanism includes a worm gear and a worm. The worm gear is fixedly connected to one end face of the lock ring far from the cabin door. A thread is provided on the worm gear. One end of the worm is driven by a motor, and the other end is rotatably connected to a linkage box through a bearing. The linkage box and the motor are both installed on the inner wall of one end face of the cabin body close to the cabin door. Worm gearing is carried out between the worm and the worm gear.

[0006] Furthermore, a hinge is connected to the inner side wall of the cabin door. A rotating hole is opened on the hinge, and a door rotating shaft is inserted into the rotating hole. The door rotating shaft is connected to the cabin body.

[0007] Furthermore, a reinforcing beam is connected to the inner side wall of the cabin door.

[0008] Furthermore, the door stopper assembly includes a cylinder and a door stopper. The cylinder is connected to the cabin body through a mounting bracket. Both the air inlet end and the air outlet end of the cylinder are connected to an external air pump, and the piston end of the cylinder is connected to the door stopper.

[0009] Furthermore, one end of the worm gear placed inside the linkage box is connected with a first bevel gear. The first bevel gear meshes with a second bevel gear. The second bevel gear is fixed on a rotating shaft. The rotating shaft is rotatably connected to the linkage box through a bearing. A toothed lock disc is also fixed on the rotating shaft. The toothed lock disc is placed inside the linkage box. A concave seat is connected to the linkage box. An elastic diaphragm is connected to the outside of the concave seat. Activity holes are opened on the end faces where the linkage box and the concave seat are connected. A guide sleeve is installed in the activity hole on the concave seat. A movable shaft is slidably connected inside the guide sleeve. One end of the movable shaft is installed on the elastic diaphragm through a connecting component. The other end of the movable shaft is placed inside the linkage box and connected with a limit pin. The limit pin cooperates with the toothed lock disc. The outside of the elastic diaphragm is connected with a sealing cover. A sealed setting is arranged between the sealing cover and the elastic diaphragm. A through hole is opened in the center of the sealing cover. A connecting pipe is fixed inside the through hole. The other end of the connecting pipe penetrates through the cabin body and communicates with the external environment. A return spring is connected between the connecting component and the sealing cover.

[0010] Furthermore, the connecting component includes a fixed block and a fixed piece. The fixed block is connected to the end of the movable shaft. The fixed block is attached to the elastic diaphragm. The other end of the fixed piece is attached to the end face of the elastic diaphragm away from the fixed block. The fixed piece and the fixed block are connected by screws. One end of the return spring is connected to the fixed piece.

[0011] Furthermore, a locking position detection switch is installed on the inner wall of one end face of the cabin body close to the cabin door.

[0012] Furthermore, a plurality of auxiliary wheels are arranged on the outer side of the lock ring. The auxiliary wheels are rotatably connected to the inner wall of one end face of the cabin body close to the cabin door. The outer wall of the auxiliary wheels is in rolling connection with the outer wall of the lock ring.

[0013] Compared with the prior art, the beneficial technical effects of the present utility model are:

[0014] The utility model adopts a fully automatic locking form. After the door proximity switch senses the cabin door, the door suction component sucks and pulls the cabin door towards the cabin body, and then the locking worm mechanism drives the lock ring to rotate, so that the wedge block on the lock ring and the L-shaped block on the cabin door are wedged with each other to complete the closing of the cabin door. After pressurization, the limit pin is stuck on the toothed lock disc to lock the worm, thus completing self-locking. It has low noise, reliable locking and good experience. Brief Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings.

[0016] Figure 1 It is a schematic diagram of the installation of the cabin door of the novel micro-pressure oxygen-enriched cabin of the present utility model;

[0017] Figure 2 It is a sectional view of the installation of the cabin door of the novel micro-pressure oxygen-enriched cabin of the present utility model;

[0018] Figure 3 It is a schematic diagram of the installation of the lock ring;

[0019] Figure 4 It is a sectional view of the locking worm mechanism;

[0020] Figure 5 It is Figure 4 The enlarged view at A in

[0021] Description of the reference numerals: 1, cabin body; 2, cabin door; 3, door proximity switch; 4, door suction component; 41, cylinder; 42, door suction; 5, lock ring; 6, wedge block; 7, L-shaped block; 8, hinge; 9, door rotating shaft; 10, strengthening beam; 11, mounting bracket; 12, worm gear; 13, worm; 14, linkage box; 15, motor; 16, locking position detection switch; 17, auxiliary wheel; 18, first bevel gear; 19, second bevel gear; 20, rotating shaft; 21, toothed lock disc; 22, concave seat; 23, elastic diaphragm; 24, sealing cover; 25, through hole; 26, guide sleeve; 27, movable shaft; 28, limit pin; 29, return spring; 30, fixed block; 31, fixing piece. Detailed Description of the Embodiment

[0022] As Figures 1-5 shown, a novel micro-pressure oxygen-enriched cabin door includes a cabin body 1 and a cabin door 2 hinged to the cabin body 1. An articulated member 8 is connected to the inner side wall of the cabin door 2. A rotating hole is provided in the articulated member 8, and a door rotating shaft 9 is inserted into the rotating hole. The door rotating shaft 9 is connected to the cabin body 1.

[0023] A cabin door hole is provided on one end surface of the cabin body 1 close to the cabin door 2, and the cabin door 2 is embedded in the cabin door hole.

[0024] A reinforcing beam 10 is connected to the inner side wall of the hatch door 2 to strengthen the firmness of the hatch door 2.

[0025] A door proximity switch 3 and a door suction assembly 4 are provided inside the cabin body 1. The door proximity switch 3 and the door suction assembly 4 are both installed on the inner wall of one end face of the cabin body 1 close to the hatch door. The door suction assembly 4 includes a cylinder 41 and a door suction 42. The cylinder 41 is connected to the cabin body 1 through a mounting bracket 11. The air inlet end and the air outlet end of the cylinder 41 are both connected to an external air pump. The piston end of the cylinder 41 is connected to the door suction 42.

[0026] A lock ring 5 is rotatably connected to the hole wall of the hatch door hole. A plurality of wedge-shaped blocks 6 are provided on the inner wall of the lock ring 5. L-shaped locking blocks 7 equal in number to the wedge-shaped blocks 6 are provided on the inner side wall of the hatch door 2. The L-shaped locking blocks 7 are wedged with the wedge-shaped blocks 6. The lock ring 5 is controlled to rotate by a locking worm mechanism installed inside the cabin body 1. The locking worm mechanism includes a worm gear 12 and a worm 13. The worm gear 12 is fixedly connected to the end face of the lock ring 5 away from the hatch door. Threads are provided on the worm gear 12. One end of the worm 13 is driven by a motor 15, and the other end is rotatably connected to a linkage box 14 through a bearing. The linkage box 14 and the motor 15 are both installed on the inner wall of one end face of the cabin body 1 close to the hatch door. A worm drive is carried out between the worm 13 and the worm gear 12.

[0027] One end of the worm 13 placed inside the linkage box 14 is connected with a first bevel gear 18. The first bevel gear 18 meshes with a second bevel gear 19. The second bevel gear 19 is fixed on a rotating shaft 20. The rotating shaft 20 is rotatably connected to the linkage box 14 through a bearing. A toothed lock disc 21 is also fixed on the rotating shaft 20. The toothed lock disc 21 is placed inside the linkage box 14. A concave seat 22 is connected to the linkage box 14. An elastic diaphragm 23 is connected to the outside of the concave seat 22. Activity holes are provided on the end faces of the linkage box 14 and the concave seat 22 where they are connected. A guide sleeve 26 is installed in the activity hole on the concave seat 22. A movable shaft 27 is slidably connected inside the guide sleeve 26. One end of the movable shaft 27 is installed on the elastic diaphragm 23 through a connecting component. The other end of the movable shaft 27 is placed inside the linkage box 14 and is connected with a limit locking pin 28. The limit locking pin 28 cooperates with the toothed lock disc 21. A sealing cover 24 is connected to the outside of the elastic diaphragm 23. A sealing is provided between the sealing cover 24 and the elastic diaphragm 23. A through hole 25 is provided at the center of the sealing cover 24. A connecting pipe is fixed inside the through hole 25. The other end of the connecting pipe penetrates through the cabin body 1 and communicates with the external environment. The connecting component and the sealing cover 24 are connected through a return spring 29.

[0028] The connecting component includes a fixing block 30 and a fixing piece 31. The fixing block 30 is connected to the end of the movable shaft 27. The fixing block 30 is attached to the elastic diaphragm 23. The other end of the fixing piece 31 is attached to the end face of the elastic diaphragm 23 away from the fixing block 30. The fixing piece 31 and the fixing block 30 are connected by screws. One end of the return spring 29 is connected to the fixing piece 31.

[0029] A locking position detection switch 16 is installed on the inner wall of one end face of the cabin body 1 close to the cabin door.

[0030] A number of auxiliary wheels 17 are provided on the outer side of the lock ring 5. The auxiliary wheels 17 are rotatably connected to the inner wall of one end face of the cabin body 1 close to the cabin door. The outer wall of the auxiliary wheels 17 is in rolling connection with the outer wall of the lock ring 5.

[0031] The operation process of the present utility model is as follows:

[0032] During use, a person applies force to the cabin door 2 to make the cabin door 2 approach the cabin body 1. When the door proximity switch 3 senses the cabin door 2, the piston end of the cylinder 41 extends, driving the door suction 42 to approach the cabin door 2 until the door suction 42 sucks the cabin door 2. Then the cylinder 41 resets, pulling the cabin door 2 completely into the cabin door hole. Then the motor 15 works to rotate the worm 13, driving the worm gear 12 to rotate through the worm 13, thereby driving the lock ring 5 to rotate, so that the wedge block 6 on the lock ring 5 and the L-shaped locking block 7 on the cabin door 2 are wedged with each other to complete the closing of the cabin door. As the pressure inside the cabin body 1 increases, the pressure on the side of the elastic diaphragm 23 close to the worm 13 is greater than the pressure inside the elastic diaphragm 23 and the sealing cover 24. Therefore, the elastic diaphragm 23 deforms towards the sealing cover 24, driving the movable shaft 27 and the limit pin 28 to move until the limit pin 28 is stuck on the toothed lock disc 21 to complete self-locking, preventing the worm 13 from rotating to open the cabin door 2 when the cabin body 1 is in use. When the cabin body 1 is no longer in use and the pressure is released, the pressure on the side of the elastic diaphragm 23 close to the worm 13 gradually becomes the same as the external environment pressure. The elastic diaphragm 23 resets through its own restoring force and the elastic force of the return spring 29, causing the limit pin 28 to disengage from the toothed lock disc 21, so that the worm 13 is no longer locked, and the cabin door 2 is opened by reversing the motor 15.

[0033] The above-described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model should all fall within the protection scope determined by the claims of the present utility model.

Claims

1. A new type of micro-pressure oxygen-rich cabin door, characterized in that: It includes a cabin body (1) and a cabin door (2) hinged to the cabin body (1). A cabin door hole is opened on one end face of the cabin body (1) close to the cabin door (2). A door proximity switch (3) and a door suction component (4) are arranged inside the cabin body (1). Both the door proximity switch (3) and the door suction component (4) are installed on the inner wall of one end face of the cabin body (1) close to the cabin door. A lock ring (5) is rotatably connected to the hole wall of the cabin door hole. A plurality of wedge-shaped blocks (6) are arranged on the inner wall of the lock ring (5). On the inner side wall of the cabin door (2), there are L-shaped clamping blocks (7) equal in number to the wedge-shaped blocks (6). The L-shaped clamping blocks (7) are wedged with the wedge-shaped blocks (6). The lock ring (5) is controlled to rotate by a locking worm mechanism installed inside the cabin body (1). The locking worm mechanism includes a worm wheel (12) and a worm (13). The worm wheel (12) is fixedly connected to one end face of the lock ring (5) away from the cabin door. Threads are provided on the worm wheel (12). One end of the worm (13) is driven by a motor (15), and the other end is rotatably connected to a linkage box (14) through a bearing. Both the linkage box (14) and the motor (15) are installed on the inner wall of one end face of the cabin body (1) close to the cabin door. Worm gearing is carried out between the worm (13) and the worm wheel (12).

2. The novel micro-pressure oxygen-enriched cabin door according to claim 1, wherein: An articulated part (8) is connected to the inner side wall of the cabin door (2). A rotating hole is provided in the articulated part (8), and a door rotating shaft (9) is inserted into the rotating hole. The door rotating shaft (9) is connected to the cabin body (1).

3. The novel micro-pressure oxygen-enriched cabin door according to claim 1, characterized in that: A reinforcing beam (10) is connected to the inner side wall of the cabin door (2).

4. The novel micro-pressure oxygen-enriched cabin door according to claim 1, wherein: The door suction component (4) includes a cylinder (41) and a door suction (42). The cylinder (41) is connected to the cabin body (1) through a mounting bracket (11). The air inlet end and the air outlet end of the cylinder (41) are both connected to an external air pump. The piston end of the cylinder (41) is connected to the door suction (42).

5. The novel micro-pressure oxygen-enriched cabin door according to claim 1, wherein: One end of the worm gear (13) placed inside the linkage box (14) is connected with a first bevel gear (18). The first bevel gear (18) meshes with a second bevel gear (19). The second bevel gear (19) is fixed on a rotating shaft (20). The rotating shaft (20) is rotatably connected to the linkage box (14) through a bearing. A toothed lock disc (21) is also fixed on the rotating shaft (20). The toothed lock disc (21) is placed inside the linkage box (14). The linkage box (14) is connected with a concave seat (22). An elastic diaphragm (23) is connected to the outside of the concave seat (22). Activity holes are formed on the end faces where the linkage box (14) and the concave seat (22) are connected. A guide sleeve (26) is installed in the activity hole on the concave seat (22). A movable shaft (27) is slidably connected inside the guide sleeve (26). One end of the movable shaft (27) is installed on the elastic diaphragm (23) through a connecting component. The other end of the movable shaft (27) is placed inside the linkage box (14) and connected with a limit retaining pin (28). The limit retaining pin (28) cooperates with the toothed lock disc (21). A sealing cover (24) is connected to the outside of the elastic diaphragm (23). A sealing is provided between the sealing cover (24) and the elastic diaphragm (23). A through hole (25) is formed in the center of the sealing cover (24). A connecting pipe is fixed inside the through hole (25). The other end of the connecting pipe penetrates through the cabin body (1) and communicates with the external environment. The connecting component and the sealing cover (24) are connected through a return spring (29).

6. The novel micro-pressure oxygen-enriched cabin door according to claim 5, wherein: The connecting component includes a fixing block (30) and a fixing piece (31). The fixing block (30) is connected to the end of the movable shaft (27). The fixing block (30) is attached to the elastic diaphragm (23). The other end of the fixing piece (31) is attached to the end face of the elastic diaphragm (23) away from the fixing block (30). The fixing piece (31) and the fixing block (30) are connected by screws. One end of the return spring (29) is connected to the fixing piece (31).

7. The novel micro-pressure oxygen-rich cabin door according to claim 1, characterized in that: A locking position detection switch (16) is installed on the inner wall of one end face of the cabin body (1) close to the cabin door.

8. The novel micro-pressure oxygen-rich cabin door according to claim 1, characterized in that: A plurality of auxiliary wheels (17) are arranged on the outside of the lock ring (5). The auxiliary wheels (17) are rotatably connected to the inner wall of one end face of the cabin body (1) close to the cabin door. The outer wall of the auxiliary wheels (17) is in rolling connection with the outer wall of the lock ring (5).

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