Micro-pressure oxygen-enriched cabin with sliding door

Abstract

The utility model relates to the technical field of micro-pressure oxygen-enriched cabins, in particular to a micro-pressure oxygen-enriched cabin with a sliding door, a cabin body system of the micro-pressure oxygen-enriched cabin with the sliding door comprises a door opening and the sliding door with the outer size larger than that of the door opening, the sliding door is movably arranged in the cabin body system through a hanger rail mechanism, and the hanger rail mechanism comprises a walking mechanism, a Z-shaped connecting rod linkage mechanism and a pressing sealing mechanism. The sliding door is arranged inside the cabin body through the hanger rail mechanism, the situation that a traditional outward opening door occupies the external space is avoided, the layout compactness of the cabin body is improved, linkage of moving and pressing sealing of the sliding door is achieved through the T-shaped bearing sleeve and the Z-shaped connecting rod linkage mechanism, the transmission structure is simplified, and the service life of the cabin body is prolonged. The defects of space utilization and sealing performance of a traditional vertical hinged door are effectively overcome, and better and more efficient use experience is brought to a user.

Description

Technical Field

[0001] This utility model relates to the field of micro-pressure oxygen-enriched chamber technology, and in particular to a micro-pressure oxygen-enriched chamber with a sliding door. Background Technology

[0002] In the modern health and wellness field, the low-pressure oxygen-enriched chamber, with its ability to simulate the physiological stress response mechanism of a high-altitude, low-oxygen environment, has become a highly sought-after innovative physiotherapy device by precisely adjusting the pressure inside the chamber to 1.1 to 1.3 atmospheres and maintaining an oxygen-enriched concentration. Continued use of this device can significantly improve lung ventilation and gas exchange efficiency, and enhance the body's immunity. For sub-healthy individuals, it is remarkably effective in relieving chronic fatigue syndrome, regulating autonomic nervous system function, and improving sleep quality. Its market applications are constantly expanding, not only widely used in rehabilitation institutions but also gradually entering homes.

[0003] However, the swing door design commonly used in current oxygen-enriched chambers has significant technical bottlenecks. Inward swing doors, due to the limited internal space of the oxygen-enriched chamber, make operation inside extremely cramped, seriously affecting the user experience; outward swing doors, on the other hand, are limited by the space constraints of home living areas, making them difficult to open normally in narrow environments, and the opening process is prone to spatial conflicts with surrounding furniture and facilities, interfering with daily life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the existing technology by proposing a micro-pressure oxygen-enriched chamber with a sliding door. The sliding door design greatly reduces the space requirements for installation, allowing for flexible opening and closing of the door even in confined spaces. Furthermore, by placing the door inside the chamber, the internal pressure generated during the chamber's startup can enhance the sealing effect, effectively solving the space utilization and sealing performance defects of traditional swing doors and providing users with a superior and more efficient user experience.

[0005] A micro-pressure oxygen-enriched chamber with a sliding door includes a chamber system, an oxygen supply system, an air pressure control system, a gas circulation system, and a control system. The chamber system includes a doorway and a sliding door with an outer dimension larger than the doorway. The sliding door is movably installed inside the chamber system via a hanging rail mechanism.

[0006] The overhead rail mechanism includes a traveling mechanism, a Z-type linkage mechanism, and a pressing and sealing mechanism;

[0007] The traveling mechanism is used to move the sliding door along the track, and includes the track, a traveling wheel axle and traveling wheels. The traveling wheel axle is horizontally arranged, and traveling wheels are assembled at both ends of it through bearings. The traveling wheels are embedded in the track.

[0008] The Z-shaped linkage mechanism includes a first Z-shaped linkage assembly and a second Z-shaped linkage assembly spaced apart along the length of the sliding door. Each Z-shaped linkage assembly includes a crossbar and a first rotating shaft and a second rotating shaft vertically disposed at both ends. The first rotating shaft is connected to the traveling mechanism through a T-shaped bearing sleeve. The T-shaped bearing sleeve includes a horizontal sleeve and a vertical sleeve. The traveling wheel axle is installed in the horizontal sleeve through a bearing. The first rotating shaft is installed in the vertical sleeve through a bearing. The second rotating shaft is hinged to the top of the sliding door.

[0009] The pressing and sealing mechanism includes a sealing turntable and a cam interlocking block. The cam interlocking block is built into the door body and includes a cam installed in the door body via a rotating shaft. The upper and lower ends of the cam are respectively equipped with linkage rods, and the ends of the linkage rods are respectively provided with cylindrical pressing heads. The pressing heads cooperate with the pressing oblique protrusions preset in the door frame. The sealing turntable is set on the door body, and the cam is connected to the sealing turntable outside the door body via a rotating shaft.

[0010] Preferably, the sliding door of this technical solution is provided with a positioning pin at the top for limiting the angle of the second rotating shaft, and the positioning pin limits the rotation angle of the second rotating shaft to no more than 15 degrees. This technical solution provides a positioning pin on the inner side of the second rotating shaft at the top of the sliding door, which limits the angle of rotation of the second rotating shaft around the first rotating shaft, thereby limiting the distance between the sliding door and the doorway when opening and closing the door, ensuring the stability of the opening and closing process.

[0011] Preferably, the door opening perimeter and the inner side of the sliding door are provided with mutually cooperating elastic sealing strips. The sealing strips include embedded grooves and sealing lips protruding from the surface. When the sliding door is in a compressed state, the sealing lips form a multi-line sealing structure.

[0012] Preferably, an electromagnetic positioning device is provided between the walking mechanism and the track guiding mechanism in this technical solution. The electromagnetic positioning device includes: a permanent magnet or electromagnetic induction plate installed on a T-shaped bearing sleeve and an electromagnetic coil assembly correspondingly set at a preset position on the track. The electromagnetic coil assembly is electrically connected to the control system. When the sliding door reaches the preset position, the positioning and locking of the walking mechanism is achieved by electromagnetic attraction.

[0013] Preferably, an adjustable preload bearing is provided between the first rotating shaft and the longitudinal sleeve in this technical solution. The adjustable preload bearing is installed inside the longitudinal sleeve. The inner ring of the adjustable preload bearing is interference-fitted with the first rotating shaft, and the outer ring is fixedly connected to the inner wall of the longitudinal sleeve. The contact pressure between the rolling elements and the raceway inside the bearing is changed by the axial preload adjustment mechanism.

[0014] Preferably, the axial preload adjustment mechanism of this technical solution includes an adjusting nut and a spring assembly located at the end of the longitudinal sleeve. The adjusting nut compresses the spring assembly by tightening, generating an axial preload to create an initial contact pressure between the rolling elements and the raceway inside the bearing.

[0015] The beneficial effects of this utility model are as follows: 1. By using a hanging rail mechanism to place the sliding door inside the cabin, the traditional outward-opening door avoids occupying external space, improving the compactness of the cabin layout and making it suitable for space-constrained scenarios; by utilizing a T-shaped bearing sleeve and two Z-shaped linkage mechanisms, the sliding door's movement and sealing are linked, simplifying the transmission structure and ensuring that the door remains horizontal during movement, thus guaranteeing the sealing effect; 2. An electromagnetic positioning device is installed, and when the sliding door reaches the preset position, the electromagnetic attraction quickly locks the traveling wheel axle, preventing the sealing position from shifting due to inertial sliding; 3. Multi-line sealing is adopted, which significantly reduces the gas leakage rate compared to a single sealing surface, maintaining the oxygen-rich concentration and micro-pressure state inside the cabin; 4. An adjustable preload bearing is installed, requiring the rotation of the first rotating shaft to overcome a threshold resistance, ensuring the stability of the Z-shaped linkage angle during movement and enhancing the stability of the sliding door during movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a partial enlarged view of the Z-type linkage mechanism of this utility model.

[0018] Figure 3 This is a partial enlarged view of the cam interlocking block of this utility model.

[0019] Figure 4 This is a schematic diagram of the clamping head and the clamping oblique protrusion of this utility model in a coordinated state.

[0020] Figure 5 This is a cross-sectional view of the sealing strip of this utility model.

[0021] 1-Door opening; 2-Sliding door; 3-Track; 4-Walking wheel; 5-First Z-type linkage assembly; 6-Second Z-type linkage assembly; 5a-Horizontal bar; 5b-First pivot; 5c-Second pivot; 6-Second Z-type linkage assembly; 7a-Horizontal sleeve; 7b-Vertical sleeve; 8-Sealing turntable; 9-Cam; 10-Connecting rod; 11-Pressure head; 12-Pressure oblique protrusion; 13-Positioning pin; 14-Sealing strip; 14a-Sealing lip. Detailed Implementation

[0022] A micro-pressure oxygen-enriched chamber with a sliding door includes a chamber system, an oxygen supply system, an air pressure control system, a gas circulation system, and a control system. The chamber system includes a doorway 1 and a sliding door 2 with an outer dimension larger than the doorway. The sliding door is movably installed inside the chamber system via a hanging rail mechanism.

[0023] The overhead rail mechanism includes a traveling mechanism, a Z-type linkage mechanism, and a pressing and sealing mechanism;

[0024] The traveling mechanism is used to move the sliding door along the track, including track 3, traveling wheel axle and traveling wheel 4. The traveling wheel axle is horizontally arranged, and the traveling wheel 4 is assembled at both ends of the axle through bearings. The traveling wheel is embedded in the track 3.

[0025] The Z-shaped linkage mechanism includes a first Z-shaped linkage assembly 5 and a second Z-shaped linkage assembly 6 spaced apart along the length of the sliding door. Each Z-shaped linkage assembly includes a crossbar 5a and a first rotating shaft 5b and a second rotating shaft 5c vertically disposed at both ends. The first rotating shaft 5b is connected to the traveling mechanism through a T-shaped bearing sleeve. The T-shaped bearing sleeve includes a horizontal sleeve 7a and a vertical sleeve 7b. The traveling wheel 4 axle is installed in the horizontal sleeve 7a through a bearing. The first rotating shaft 5b is installed in the vertical sleeve 7b through a bearing. The second rotating shaft 5c is hinged to the top of the sliding door 1.

[0026] The pressing and sealing mechanism includes a sealing turntable 8 and a cam interlocking block. The cam interlocking block is built into the door body and includes a cam 9 installed in the door body via a rotating shaft. The upper and lower ends of the cam are respectively equipped with linkage rods 10, and the ends of the linkage rods are respectively provided with cylindrical pressing heads 11. The pressing heads cooperate with the pressing oblique protrusions 12 preset in the door frame. The sealing turntable is set on the door body, and the cam 9 is connected to the sealing turntable 8 outside the door body via a rotating shaft.

[0027] The sliding door of this technical solution is provided with a positioning pin 13 at the top for limiting the angle of the second rotating shaft. The positioning pin limits the rotation angle of the second rotating shaft to no more than 15 degrees.

[0028] The door opening and the inner side of the sliding door are provided with mutually cooperating elastic sealing strips 14. The sealing strip includes an embedded groove and a sealing lip 14a protruding from the surface. When the sliding door is in a compressed state, the sealing lip forms a multi-line sealing structure.

[0029] The walking mechanism and the track guiding mechanism of this technical solution are provided with an electromagnetic positioning device. The electromagnetic positioning device includes: a permanent magnet installed on a T-shaped bearing sleeve and an electromagnetic coil assembly correspondingly set at a preset position on the track. The permanent magnet is installed on the front end face of the T-shaped bearing sleeve. A positioning plate is set at the preset position on the track. An electromagnetic coil assembly electrically connected to the control system is installed on the positioning plate. When the sliding door reaches the preset position, the positioning and locking of the walking mechanism is achieved by electromagnetic attraction.

[0030] This technical solution provides an adjustable preload bearing between the first rotating shaft 5b and the longitudinal sleeve 7b. The adjustable preload bearing is installed inside the longitudinal sleeve 7b, with its inner ring interference-fitted to the first rotating shaft 5b and its outer ring fixedly connected to the inner wall of the longitudinal sleeve 7b. An axial preload adjustment mechanism changes the contact pressure between the rolling elements and the raceway inside the bearing. This axial preload adjustment mechanism includes an adjusting nut and a spring assembly located at the end of the longitudinal sleeve. The adjusting nut compresses the spring assembly by tightening, generating an axial preload that creates initial contact pressure between the rolling elements and the raceway inside the bearing. The use of the adjustable preload bearing ensures that the rotation of the first rotating shaft overcomes a threshold resistance, guaranteeing the stability of the Z-shaped linkage angle during movement and enhancing the stability of the sliding door.

[0031] When closing the sliding door, gently pull the clamping turntable to move the door. As the sliding door approaches the closed position, the electromagnetic positioning device mounted on the T-shaped bearing sleeve activates, adsorbing the T-shaped bearing sleeve and the traveling wheels onto the track, thus limiting the movement and ensuring the sliding door accurately reaches the closed position. At this point, grip the clamping turntable to press the entire sliding door outwards towards the doorway. Because the sliding door is larger than the doorway and its inner surfaces are equipped with sealing strips, the sliding door firmly seals the doorway. Finally, rotating the clamping turntable drives the cam shaft to rotate. When the cam rotates, it drives the linkage rod, causing the cylindrical clamping head to move along the clamping convex protrusion inside the door frame and apply pressure, thereby achieving a tight fit between the sliding door and the door frame, ensuring excellent airtightness of the cabin in a micro-pressure environment. The design of the sealing turntable allows operators to operate from outside the cabin, improving ease of use and safety.

Claims

1. A micro-pressure oxygen-enriched cabin with sliding door, comprising a cabin body system, an oxygen supply system, an air pressure control system, a gas circulation system and a control system, characterized in that: The cabin system includes a doorway and a sliding door with an external dimension larger than the doorway. The sliding door is movably installed inside the cabin system via a hanging rail mechanism. The overhead rail mechanism includes a traveling mechanism, a Z-type linkage mechanism, and a pressing and sealing mechanism; The traveling mechanism is used to move the sliding door along the track, and includes the track, a traveling wheel axle and traveling wheels. The traveling wheel axle is horizontally arranged, and traveling wheels are assembled at both ends of it through bearings. The traveling wheels are embedded in the track. The Z-shaped linkage mechanism includes a first Z-shaped linkage assembly and a second Z-shaped linkage assembly spaced apart along the length of the sliding door. Each Z-shaped linkage assembly includes a crossbar and a first rotating shaft and a second rotating shaft vertically disposed at both ends. The first rotating shaft is connected to the traveling mechanism through a T-shaped bearing sleeve. The T-shaped bearing sleeve includes a horizontal sleeve and a vertical sleeve. The traveling wheel axle is installed in the horizontal sleeve through a bearing. The first rotating shaft is installed in the vertical sleeve through a bearing. The second rotating shaft is hinged to the top of the sliding door. The pressing and sealing mechanism includes a sealing turntable and a cam interlocking block. The cam interlocking block is built into the door body and includes a cam installed in the door body via a rotating shaft. The upper and lower ends of the cam are respectively equipped with linkage rods, and the ends of the linkage rods are respectively provided with cylindrical pressing heads. The pressing heads cooperate with the pressing oblique protrusions preset in the door frame. The sealing turntable is set on the door body, and the cam is connected to the sealing turntable outside the door body via a rotating shaft.

2. The micro-pressure oxygen-enriched cabin with a sliding door according to claim 1, characterized in that: The door opening and the inner side of the sliding door are provided with mutually cooperating elastic sealing strips. The elastic sealing strips include embedded grooves and sealing lips protruding from the surface. When the sliding door is in a compressed state, the sealing lips form a multi-line sealing structure.

3. The micro-pressure oxygen-enriched cabin with a sliding door according to claim 1, characterized in that: The top of the sliding door is provided with a positioning pin for limiting the angle of the second rotating shaft, and the positioning pin limits the rotation angle of the second rotating shaft to no more than 15 degrees.

4. The micro-pressure oxygen-enriched cabin with a sliding door according to claim 1, characterized in that: An electromagnetic positioning device is provided between the walking mechanism and the track guiding mechanism. The electromagnetic positioning device includes a permanent magnet or electromagnetic induction plate installed on a T-shaped bearing sleeve and an electromagnetic coil assembly correspondingly set at a preset position on the track. The electromagnetic coil assembly is electrically connected to the control system. When the sliding door reaches the preset position, the door is positioned and locked by electromagnetic attraction.

5. The micro-pressure oxygen-enriched cabin with a sliding door according to claim 1, characterized in that: An adjustable preload bearing is provided between the first rotating shaft and the longitudinal sleeve. The adjustable preload bearing is installed inside the longitudinal sleeve. The inner ring of the adjustable preload bearing is interference-fitted with the first rotating shaft, and the outer ring is fixedly connected to the inner wall of the longitudinal sleeve. The contact pressure between the rolling elements and the raceway inside the bearing is changed by the axial preload adjustment mechanism.

6. The micro-pressure oxygen-enriched cabin with a sliding door according to claim 5, characterized in that: The axial preload adjustment mechanism includes an adjusting nut and a spring assembly located at the end of the longitudinal sleeve. The adjusting nut compresses the spring assembly by tightening, generating an axial preload that creates an initial contact pressure between the rolling elements and the raceway inside the bearing.

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