A delivery cylinder for oxygen chamber

Abstract

The present invention discloses a delivery cylinder for oxygen chamber, comprising a cylinder, an outer door, an inner door, a slider, a flange, a pressurization system, a decompression system and a rolling bearing. The cylinder is square, one end of the cylinder with the inner door extends into the oxygen chamber, and the other end of the cylinder with the outer door is placed outside the oxygen chamber. The cylinder is connected to the oxygen chamber through a flange, a rolling bearing is provided on the outer door, and a slideway is provided in the cylinder. The outer door slides on the slider through the rolling bearing to realize the opening and closing of the outer door. A decompression system is provided on the cylinder outside the oxygen chamber, and a pressurization system connecting the oxygen chamber and the delivery cylinder is provided on the cylinder. Beneficial effects: a new delivery cylinder for oxygen chamber with simple structure, safety and reliability, easy operation, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen chambers, and in particular to a delivery cylinder for oxygen chambers. Background Art

[0002] An oxygen chamber is a medical manned pressure vessel that uses compressed air or medical oxygen as a pressurized medium. Patients receive treatment by inhaling oxygen in a high-pressure environment in the chamber. During treatment, there are often unexpected situations, which require the delivery of certain rescue, monitoring and treatment supplies from outside the chamber through a delivery tube. Traditional oxygen chamber delivery tubes generally use a spiral locking mechanism, which is troublesome and inconvenient to operate. Some also use a clamp-type locking mechanism, which has a complex structure and is relatively costly. In addition, the safety mechanism of the hyperbaric oxygen chamber delivery tube is generally set up separately, which is cumbersome to install and has poor reliability. Their airtightness depends on the integrity of the bolts / clips fastened to the door flange when tightening the door seal. These door lock components are heavy and bulky and require regular inspection and maintenance. Although some delivery cylinders are safe and reliable, the cylinders are installed on the wall of the medical oxygen chamber, which causes the cylinders to occupy a large area of ​​space, increasing the space volume of the medical oxygen chamber. In addition, due to the high pressure in the hyperbaric oxygen chamber, in order to ensure safety and reliability, the delivery cylinder needs to be strong as a whole, making the overall delivery cylinder structure bulky, and the door cover is required to be tightly closed, so it takes a lot of effort to open / close the door cover, which is time-consuming and laborious. In particular, medical staff are generally female, so it often takes two female medical staff to cooperate to open / close the door cover. In addition, since the pressure inside the delivery cylinder is higher than the ambient pressure in most cases, there is always a force that tends to open the outer door outwards. If the operation is not careful, it is easy to cause harm to the operator, and serious life-threatening. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a new type of oxygen chamber delivery cylinder which has a simple structure, is safe and reliable, is easy to operate, and saves time and effort.

[0004] The objective of the present invention is achieved through the following technical measures: a delivery cylinder for an oxygen chamber, comprising a cylinder body, an outer door, an inner door, a slider, a flange, a pressurization system, a decompression system and a rolling bearing, wherein the cylinder body is square, one end of the cylinder body provided with an inner door extends into the oxygen chamber, and the other end of the cylinder body provided with an outer door is placed outside the oxygen chamber, the cylinder body is connected to the oxygen chamber through a flange, a rolling bearing is provided on the outer door, a slider is provided in the cylinder body, the outer door slides on the slider through the rolling bearing to realize the opening and closing of the outer door, a decompression system is provided on the cylinder body outside the oxygen chamber, and a pressurization system connecting the oxygen chamber and the delivery cylinder is provided on the cylinder body.

[0005] Furthermore, the flange is square, and is sleeved on the cylinder. A single-sided seat plate is provided on the oxygen cabin, and the flange is connected to the single-sided seat plate.

[0006] Furthermore, an inner head is provided at one end of the cylinder, and an outer head is provided at the other end of the cylinder. A first sealing groove is provided on the outer side of the inner head, and a sealing material is filled in the first sealing groove for sealing the inner door and the cylinder. A second sealing groove is provided on the outer side of the outer door, and a sealing material is filled in the second sealing groove for sealing the outer door and the outer head.

[0007] Furthermore, the slider is arranged in the cylinder, and the slider is divided into a first slider and a second slider. The first slider is horizontally arranged in the cylinder, and the second slider is vertically arranged in the cylinder. One end of the first slider contacts one end of the second slider. The rolling bearing is divided into an upper rolling bearing and a lower rolling bearing. The upper rolling bearing is arranged on the upper part of the side of the outer door, and the lower rolling bearing is arranged on the lower part of the side of the outer door. The upper rolling bearing slides on the first slider, and the lower rolling bearing slides on the second slider.

[0008] Furthermore, the first slider is provided with a first curved surface, the second slider is provided with a second curved surface, the upper rolling bearing of the outer door slides on the first curved surface, and the lower rolling bearing of the outer door slides on the second curved surface, and the first curved surface and the second curved surface are used in combination to realize automatic locking of the outer door during closing.

[0009] Furthermore, the first curved surface is arranged on an end of the first slider close to the second slider, and the second curved surface is arranged on an end of the second slider away from the first slider.

[0010] Furthermore, a groove is provided at the bottom of the first sliding block, and the lower rolling bearing of the outer door can slide upward from the second curved surface of the second sliding block into the groove.

[0011] Furthermore, the groove is provided with a limiting protrusion, and the limiting protrusion is used to limit the position of the lower rolling bearing after it enters the groove.

[0012] Furthermore, the pressurization system includes an air inlet, a ventilation pipeline and a pressurization valve, the air inlet is arranged outside the cylinder in the oxygen chamber, the ventilation pipeline is arranged inside the cylinder, and the pressurization valve is arranged outside the cylinder outside the oxygen chamber, the air inlet is connected to one end of the ventilation pipeline through an elbow, the other end of the ventilation pipeline extends out of the cylinder through the elbow and is connected to one end of the pressurization valve, and the other end of the pressurization valve extends into the cylinder.

[0013] Furthermore, the ventilation pipeline is arranged below the first sliding block.

[0014] Compared with the prior art, the invention has the beneficial effects of providing a delivery cylinder for an oxygen chamber, which is simple in structure, safe and reliable, easy to operate, and time-saving and labor-saving.

[0015] 1. The square cylinder design effectively solves the problem in the prior art that items placed in a circular cylinder are unstable or require an additional horizontal plate.

[0016] 2. The pressurization system and the decompression system are integrated on the cylinder body respectively, and their modular design effectively realizes the simple operation of pressurization and decompression in the delivery cylinder, which greatly saves the cost of adding an additional pressurization system and cumbersome operating procedures in conventional designs.

[0017] 3. The outer door is opened by the upper rolling bearing and the lower rolling bearing sliding along the first slider and the second slider from the vertical direction to the horizontal direction, which breaks the outer door of the conventional delivery tube that is opened outward under pressure, avoids the situation where the outer door is opened under pressure and injures people, and no additional safety self-locking device is needed.

[0018] 4. The cylinder is connected to the single-sided seat plate on the oxygen chamber through a square flange. One end of the cylinder extends into the oxygen chamber, and the other end of the cylinder is placed outside the oxygen chamber. Compared with the welding method of the cylinder end and the oxygen chamber end in the prior art, it greatly saves floor space, reduces the volume for easy transportation, and is simple to assemble and disassemble, saving time and effort.

[0019] 5. The design of the first curved surface and the second curved surface enables the outer door to be closed effectively by its own weight during the closing process. When the pressure inside the cylinder increases, the outer door will automatically lock and seal.

[0020] 6. The arrangement of the groove and the limiting protrusion on the first sliding block can assist in positioning the outer door after it is fully opened.

[0021] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the delivery cylinder used in the oxygen chamber.

[0023] Figure 2 It is a structural schematic diagram of the delivery cylinder for the oxygen chamber (with the outer door open).

[0024] Figure 3 It is a top view structural schematic diagram of the delivery tube used in the oxygen chamber.

[0025] Figure 4 It is a schematic diagram of the structure of the flange.

[0026] Among them, 1. Cylinder, 2. Outer door, 3. Flange, 4. Inner head, 5. Outer head, 6. First sealing groove, 7. Second sealing groove, 8. First slider, 9. Upper rolling bearing, 10. Lower rolling bearing, 11. First arc surface, 12. Second curved surface, 13. Groove, 14. Limiting protrusion, 15. Air inlet, 16. Ventilation line, 17. Pressurizing valve, 18. Pressure reducing valve, 19. Pressure gauge, 20. Door handle, 21. Second slider, 22. Inner door. DETAILED DESCRIPTION

[0027] like Figures 1 to 4 As shown, a delivery cylinder for an oxygen chamber includes a cylinder body 1, an outer door 2, an inner door 22, a slider, a flange 3, a pressurization system, a decompression system and a rolling bearing. The specific connection and opening method between the inner door 22 and the cylinder body 1 is commonly used in the industry and will not be elaborated here. The cylinder body 1 is square, and medical supplies and daily necessities for patients can be placed inside it. It is made of steel material. The design of the square cylinder body 1 effectively solves the problem of instability of placing items in a circular cylinder in the prior art, or the need to add an additional horizontal plate. The outer door 2 is made of aluminum or steel. One end of the cylinder 1 provided with an inner door 22 extends into the interior of the oxygen chamber, and the other end of the cylinder 1 provided with an outer door 2 is placed outside the oxygen chamber. The cylinder 1 is connected to the oxygen chamber through a flange, and a rolling bearing is provided on the outer door 2. A slider is provided inside the cylinder 1. The outer door 2 slides on the slider through the rolling bearing to realize the opening and closing of the outer door 2. A decompression system is provided on the cylinder 1 outside the oxygen chamber, and a pressurization system connecting the oxygen chamber and the delivery cylinder is provided on the cylinder 1. The inner door 22 adopts a push-pull door structure, and the inner door 22 is opened and closed by a push-pull action. The outer side of the inner head 4 provided with the inner door 22 can realize the sealing of the inner door 22 and the cylinder 1 under the action of the inner pressure of the oxygen chamber because the internal pressure of the oxygen chamber is higher than the external pressure. The decompression system includes a pressure gauge 19 and a pressure reducing valve 18. The pressure gauge 19 is used to detect the pressure in the cylinder 1, and the pressure reducing valve 18 is used to release the pressure in the cylinder 1. The pressurization system and the decompression system are respectively integrated on the cylinder 1, and their respective modular designs effectively realize the simple operation of pressurization and decompression in the delivery cylinder, greatly saving the cost of additional pressurization system and cumbersome operating procedures required in conventional designs.

[0028] Furthermore, the flange 3 is square, and the flange 3 is sleeved on the cylinder 1. A single-sided seat plate is provided on the oxygen chamber, and the flange 3 and the single-sided seat plate are fixedly connected by flange gaskets and bolts. The cylinder 1 is connected to the single-sided seat plate on the oxygen chamber through the square flange 3, one end of the cylinder 1 extends into the oxygen chamber, and the other end of the cylinder 1 is placed outside the oxygen chamber. Compared with the welding method of the end of the cylinder 1 and the end of the oxygen chamber in the prior art, it greatly saves floor space, reduces the volume and facilitates transportation, and is simple to assemble and disassemble, saving time and effort.

[0029] Furthermore, an inner head 4 is provided at one end of the cylinder 1, and an outer head 5 is provided at the other end of the cylinder 1. A first sealing groove 6 is provided on the outer side of the inner head 4, and a sealing material is filled in the first sealing groove 6 for sealing the inner door 22 and the cylinder 1. The inner head 4 is square, and the first sealing groove 6 is provided around the square inner head 4. A second sealing groove 7 is provided on the outer side of the outer door 2, and a sealing material is filled in the second sealing groove 7 for sealing the outer door 2 and the outer head 5. The outer door 2 is square like the cylinder 1, and the second sealing groove 7 is provided around the square outer door 2. When the outer door 2 is sealed with the outer head 5, the outer door 2 is sealed with the cylinder 1. A door handle 20 is provided on the outer side of the outer door 2 to facilitate the opening and closing of the outer door 2.

[0030] Furthermore, the slider is arranged in the cylinder 1, and the slider is divided into a first slider 8 and a second slider 21. The first slider 8 is arranged horizontally in the cylinder 1, and the second slider 21 is arranged vertically in the cylinder 1. One end of the first slider 8 contacts one end of the second slider 21. The rolling bearing is divided into an upper rolling bearing 9 and a lower rolling bearing 10. The upper rolling bearing 9 is arranged on the upper side of the outer door 2, and the lower rolling bearing 10 is arranged on the lower side of the outer door 2. The upper rolling bearing 9 slides on the first slider 8, and the lower rolling bearing 10 slides on the second slider 21. The outer door 2 is opened in such a way that the upper rolling bearing 9 and the lower rolling bearing 10 slide along the first slider 8 and the second slider 21 from the vertical direction to the horizontal direction, which breaks the way that the outer door 2 of the conventional delivery cylinder is opened outward under pressure, avoids the situation that the outer door 2 is opened under pressure and injures people, and no additional safety self-locking device is needed. There are two groups of sliders, which are respectively arranged on both sides of the cylinder 1. There are also two groups of rolling bearings, which are respectively arranged on both sides of the outer door 2. One group of sliders corresponds to one group of rolling bearings.

[0031] Furthermore, the first slider 8 is provided with a first curved surface 11, the second slider 21 is provided with a second curved surface 12, the upper rolling bearing 9 of the outer door 2 slides on the first curved surface 11, and the lower rolling bearing 10 of the outer door 2 slides on the second curved surface 12. The first curved surface 11 and the second curved surface 12 are used together to realize the automatic locking of the outer door 2 during the closing process. The first curved surface 11 is provided on the end of the first slider 8 close to the second slider 21, and the second curved surface 12 is provided on the end of the second slider 21 away from the first slider 8. The design of the first curved surface 11 and the second curved surface 12 enables the outer door 2 to be closed effectively by virtue of its own weight during the closing process, and when the pressure inside the cylinder 1 increases, the outer door 2 will automatically lock and seal.

[0032] Furthermore, a groove 13 is provided at the bottom of the first slider 8, and the lower rolling bearing 10 of the outer door 2 can slide upward from the second curved surface 12 of the second slider 21 into the groove 13. The groove 13 is provided with a limiting protrusion 14, and the limiting protrusion 14 is used to limit the position of the lower rolling bearing 10 after entering the groove 13. The arrangement of the groove 13 and the limiting protrusion 14 on the first slider 8 can assist in positioning the outer door 2 after it is fully opened.

[0033] Furthermore, the pressurization system includes an air inlet 15, a ventilation line 16 and a pressurization valve 17. The air inlet 15 is arranged outside the cylinder 1 in the oxygen chamber, the ventilation line 16 is arranged inside the cylinder 1, and the pressurization valve 17 is arranged outside the cylinder 1 outside the oxygen chamber. The air inlet 15 is connected to one end of the ventilation line 16 through an elbow, and the other end of the ventilation line 16 extends out of the cylinder 1 through an elbow and is connected to one end of the pressurization valve 17, and the other end of the pressurization valve 17 extends into the cylinder 1. The pressurization system and the decompression system are integrated on the cylinder 1, and the modular design effectively realizes the simple operation of pressurizing the delivery cylinder, which greatly saves the cost of additional pressurization system and cumbersome operating procedures required in conventional design.

[0034] Furthermore, the ventilation pipeline 16 is arranged below the first slider 8, which effectively avoids the interference problem of the outer door 2 during the opening and closing operation.

[0035] The process of opening the outer door 2: pull the door handle 20 upwards, the upper rolling bearing 9 of the outer door 2 starts to slide to the left on the first curved surface 11 of the first slider 8, and at the same time, the lower rolling bearing 10 of the outer door 2 starts to slide upward on the second curved surface 12 of the second slider 21; continue to push the outer door 2 upward until the upper rolling bearing 9 of the outer door 2 slides to the leftmost end of the first slider 8, and at the same time, the lower rolling bearing 10 of the outer door 2 slides to the uppermost end of the second slider 21 and enters the groove 13 of the first slider 8. Under the limitation of the limiting protrusion 14, the lower rolling bearing 10 is limited in the groove 13. At this time, the outer door 2 is fully opened and positioned immobile.

[0036] The process of closing the outer door 2: lift the outer door 2 slightly upward and then pull it axially to the right, or pull it to the right with force in the axial direction, so that the lower rolling bearing 10 disengages from the groove 13, and the lower rolling bearing 10 slides into the second slider 21. Under the action of the deadweight of the outer door 2, the lower rolling bearing 10 accelerates to slide up and down on the second slider 21, and the upper rolling bearing 9 is driven to slide to the right on the first slider 8 at an accelerated speed. When the lower rolling bearing 10 slides to the lowest part of the second curved surface 12, at the same time, when the upper rolling bearing 9 slides to the rightmost end of the first curved surface 11, the outer door 2 is completely closed. When the pressure inside the cylinder 1 increases, the outer door 2 is automatically locked and sealed under the action of the internal pressure of the cylinder 1.

[0037] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A delivery tube for an oxygen chamber, characterized in that: It includes a cylinder, an outer door, an inner door, a slider, a flange, a pressurization system, a decompression system and a rolling bearing. The cylinder is square, one end of the cylinder with the inner door extends into the oxygen chamber, and the other end of the cylinder with the outer door is placed outside the oxygen chamber. The cylinder is connected to the oxygen chamber through a flange, a rolling bearing is provided on the outer door, and a slider is provided in the cylinder. The outer door slides on the slider through the rolling bearing to realize the opening and closing of the outer door. A decompression system is provided on the cylinder outside the oxygen chamber, and a pressurization system connecting the oxygen chamber and the delivery cylinder is provided on the cylinder.

2. The delivery tube for oxygen chamber according to claim 1, characterized in that: The flange is square and is sleeved on the cylinder. A single-sided seat plate is arranged on the oxygen cabin, and the flange is connected to the single-sided seat plate.

3. The delivery tube for oxygen chamber according to claim 1, characterized in that: An inner head is provided at one end of the cylinder, and an outer head is provided at the other end of the cylinder. A first sealing groove is provided on the outer side of the inner head, and a sealing material is filled in the first sealing groove for sealing the inner door and the cylinder. A second sealing groove is provided on the outer side of the outer door, and a sealing material is filled in the second sealing groove for sealing the outer door and the outer head.

4. The delivery tube for oxygen chamber according to claim 1, characterized in that: The slider is arranged in the cylinder, and the slider is divided into a first slider and a second slider. The first slider is horizontally arranged in the cylinder, and the second slider is vertically arranged in the cylinder. One end of the first slider contacts one end of the second slider. The rolling bearing is divided into an upper rolling bearing and a lower rolling bearing. The upper rolling bearing is arranged on the upper part of the side of the outer door, and the lower rolling bearing is arranged on the lower part of the side of the outer door. The upper rolling bearing slides on the first slider, and the lower rolling bearing slides on the second slider.

5. The delivery tube for oxygen chamber according to claim 4, characterized in that: The first slider is provided with a first curved surface, the second slider is provided with a second curved surface, the upper rolling bearing of the outer door slides on the first curved surface, and the lower rolling bearing of the outer door slides on the second curved surface. The first curved surface and the second curved surface are used in combination to realize automatic locking of the outer door during closing.

6. The delivery tube for oxygen chamber according to claim 5, characterized in that: The first curved surface is arranged on an end of the first slider close to the second slider, and the second curved surface is arranged on an end of the second slider away from the first slider.

7. The delivery tube for oxygen chamber according to claim 6, characterized in that: A groove is provided at the bottom of the first sliding block, and the lower rolling bearing of the outer door can slide upward from the second curved surface of the second sliding block into the groove.

8. The delivery tube for oxygen chamber according to claim 7, characterized in that: The groove is provided with a limiting protrusion, and the limiting protrusion is used for limiting the position of the lower rolling bearing after it enters the groove.

9. The delivery tube for oxygen chamber according to claim 4, characterized in that: The pressurization system includes an air inlet, a ventilation pipeline and a pressurization valve. The air inlet is arranged outside the cylinder in the oxygen chamber, the ventilation pipeline is arranged inside the cylinder, and the pressurization valve is arranged outside the cylinder outside the oxygen chamber. The air inlet is connected to one end of the ventilation pipeline through an elbow, and the other end of the ventilation pipeline extends out of the cylinder through the elbow and is connected to one end of the pressurization valve, and the other end of the pressurization valve extends into the cylinder.

10. The delivery tube for oxygen chamber according to claim 9, characterized in that: The ventilation pipeline is arranged below the first sliding block.

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