Hyperbaric oxygen chamber delivery cylinder

Abstract

The present invention discloses a hyperbaric oxygen chamber delivery cylinder, comprising a cylinder body and an air pressure regulating valve; the cylinder body is provided with a delivery chamber and an air pressure regulating chamber connected to the delivery chamber, the cylinder body is provided with an outer door cover and an inner door cover at positions corresponding to the inner and outer sides of the delivery chamber, and the outer door cover and the inner door cover are provided with an outer door handle lock and an inner door handle lock respectively; the air pressure regulating valve comprises a valve body and a valve core; the valve body is provided at a position of the cylinder body corresponding to the air pressure regulating chamber, and has an inner air pressure channel connecting the air pressure regulating chamber with the inner space of the oxygen chamber and an outer air pressure channel connecting the air pressure regulating chamber with the outer space of the oxygen chamber; the valve core is movably provided in the valve body, and has an inner adjustment position and an outer adjustment position relative to the valve body; wherein, when the valve core is in the inner adjustment position, the inner air pressure channel is cut off and the outer air pressure channel is opened at the same time; when the valve core is in the outer adjustment position, the inner air pressure channel is opened and the outer air pressure channel is cut off at the same time. The present invention has the characteristics of stable air pressure and convenient use.

Description

Technical Field

[0001] The present invention relates to the medical field, in particular to a hyperbaric oxygen chamber delivery cylinder. Background Art

[0002] A medical oxygen chamber is a manned medical pressure vessel pressurized with compressed air or medical oxygen. Patients receive treatment by inhaling oxygen in a high-pressure environment. Unexpected situations often arise during treatment, necessitating the transfer of emergency, monitoring, and treatment supplies, or the transfer of items from within the chamber, via a delivery tube.

[0003] In the prior art, both the inner and outer doors of the delivery tube are equipped with air release valves to balance the air pressure inside and outside the oxygen chamber with the air pressure inside the delivery tube. Since the air release valves on the inner and outer doors are independent structures and do not interfere with each other during use, there is a possibility that people inside and outside the chamber can open both air release valves at the same time, causing a large amount of air pressure to leak out of the chamber. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a hyperbaric oxygen chamber delivery cylinder.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A hyperbaric oxygen chamber delivery cylinder, characterized by comprising a cylinder body and an air pressure regulating valve;

[0007] The cylinder body is provided with a delivery chamber and an air pressure regulating chamber located on the side of the delivery chamber and connected to the delivery chamber. The cylinder body is provided with an outer door cover and an inner door cover at positions corresponding to the inner and outer sides of the delivery chamber, and the outer door cover and the inner door cover are provided with an outer door handle lock and an inner door handle lock respectively.

[0008] The air pressure regulating valve comprises a valve body and a valve core;

[0009] The valve body is arranged at a portion of the cylinder corresponding to the air pressure regulating chamber, and has an internal air pressure channel connecting the air pressure regulating chamber with the internal space of the oxygen chamber and an external air pressure channel connecting the air pressure regulating chamber with the external space of the oxygen chamber;

[0010] The valve core is movably arranged in the valve body and has an inner adjustment position and an outer adjustment position relative to the valve body;

[0011] Among them, when the valve core is in the inner adjustment position, the inner air pressure channel is cut off and the outer air pressure channel is opened. When the valve core is in the outer adjustment position, the inner air pressure channel is opened and the outer air pressure channel is cut off.

[0012] Preferably, the valve body has a valve hole, and the side wall of the valve body is provided with an inner air hole connecting the interior of the oxygen chamber with the valve hole, an intermediate air hole connecting the air pressure regulating chamber with the valve hole, and an outer air hole connecting the exterior of the oxygen chamber with the valve hole;

[0013] The inner air pressure channel is formed by the inner air hole, the valve hole and the middle air hole, and the outer air pressure channel is formed by the middle air hole, the valve hole and the outer air hole.

[0014] Preferably, the valve core is fitted in the valve hole and has an inner sealing ring located inside the inner air hole, an outer sealing ring located outside the outer air hole, and an intermediate sealing ring switching between the inner and outer sides of the intermediate air hole.

[0015] Preferably, an inner handle and an outer handle are respectively provided at both ends of the valve core, the inner handle is located inside the oxygen chamber, and the outer handle is located outside the oxygen chamber.

[0016] Preferably, the exterior door handle lock comprises a lock body and a self-locking structure;

[0017] Among them, when the internal air pressure channel is connected, the self-locking structure is closed, restricting the lock body from opening. When the external air pressure channel is connected, the self-locking structure is opened and the lock body can be opened at the same time.

[0018] Preferably, the lock body includes a lock frame fixed on the outer door cover, a lock shaft provided on the lock frame and passing through the outer door cover, and a lock tongue assembly provided on the inner end of the lock shaft and capable of cooperating with a lock groove on the inner wall of the delivery chamber.

[0019] Preferably, the self-locking structure includes a positioning groove provided on the lock frame, a positioning sleeve slidingly engaged with the lock tongue assembly, and a spring pushing the positioning sleeve back toward the positioning groove. When the internal air pressure channel is open, the air pressure in the oxygen chamber pushes the positioning sleeve to overcome the spring force and enter the positioning groove to limit the rotation of the lock tongue assembly relative to the lock frame.

[0020] The advantages of the present invention are:

[0021] 1. The air pressure regulating valve can realize the folding and conducting function of the external air pressure channel and the internal air pressure channel, avoiding the problem of the external air pressure channel and the internal air pressure channel being opened at the same time, and it also has the characteristics of convenient operation;

[0022] 2. The outer door handle lock has a self-locking function, which can prevent the outer door handle lock from being opened when the internal air pressure channel is open, thereby avoiding the problem of large-scale leakage of air pressure in the oxygen chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a hyperbaric oxygen chamber delivery cylinder provided in this embodiment;

[0024] Figure 2 A cross-sectional view of the hyperbaric oxygen chamber delivery tube provided in this embodiment;

[0025] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0026] Figure 4 Another cross-sectional view of the hyperbaric oxygen chamber delivery tube provided in this embodiment;

[0027] Figure 5 for Figure 4 Enlarged view of middle part B;

[0028] Figure 6 A partial exploded view of the exterior door handle lock provided in this embodiment;

[0029] Figure 7 This is a schematic diagram of the lock tongue assembly provided in this embodiment. DETAILED DESCRIPTION

[0030] Combine Figures 1 to 7 The hyperbaric oxygen chamber delivery tube of the present invention is further described.

[0031] A hyperbaric oxygen chamber delivery cylinder is characterized by comprising a cylinder body 1 and an air pressure regulating valve 3.

[0032] The cylinder 1 has a delivery chamber 12 and an air pressure regulating chamber 13 located on the left or right side of the delivery chamber 12 and connected to the delivery chamber 12. The cylinder 1 is provided with an outer door cover 4 and an inner door cover 5 at positions corresponding to the inner and outer sides of the delivery chamber through hinges. The outer door cover 4 and the inner door cover 5 are respectively provided with an outer door handle lock 2 and an inner door handle lock 6.

[0033] The air pressure regulating valve 3 includes a valve body 32 and a valve core 31 .

[0034] The valve body 32 is arranged on the portion of the cylinder 1 corresponding to the air pressure regulating chamber 13. The specific structure is as follows: there are assembly holes on both the inner and outer walls of the cylinder 1 forming the air pressure regulating chamber 13, and the two ends of the valve body 32 are fixed in the assembly holes of the inner and outer walls, so that the middle portion of the valve body 32 corresponds to the air pressure regulating chamber 13, the inner end of the valve body 32 corresponds to the inside of the oxygen chamber, and the outer end of the valve body 32 corresponds to the outside of the oxygen chamber. The valve body 32 has an internal air pressure channel 33 that connects the air pressure regulating chamber 13 with the internal space of the oxygen chamber, and an external air pressure channel 34 that connects the air pressure regulating chamber 13 with the external space of the oxygen chamber. The valve core 31 is movably arranged in the valve body 32, and has an inner adjustment position and an outer adjustment position relative to the valve body 32.

[0035] Among them, such as Figure 3 As shown, when the valve core 31 is in the inner adjustment position, the inner air pressure channel 33 is cut off and the outer air pressure channel 34 is connected; when the valve core 31 is in the outer adjustment position, the inner air pressure channel 33 is connected and the outer air pressure channel 34 is cut off.

[0036] To enhance installation stability and sealing when the valve body 32 is installed in the assembly hole, a stopper 16 is formed at the opening of the assembly hole for the end of the valve body 32 to abut against. This stopper only leaves a through hole for the end of the valve core 31 to pass through. A sealing ring is also provided between the outer wall of the valve body 32 and the inner wall of the assembly hole. Channels 15 are provided on both the inner and outer walls of the cylinder 1 corresponding to the air pressure regulating chamber 13, connecting the internal air pressure channel 33 or the external air pressure channel 34 to the interior and exterior of the oxygen chamber.

[0037] The specific structure of the valve body is that the valve body 32 has a valve hole 324, that is, a central hole extending axially along the valve body 32, and the side wall of the valve body 32 is axially distributed with an inner air hole 323 connecting the interior of the oxygen chamber with the valve hole 324, an intermediate air hole 322 connecting the air pressure regulating chamber 13 with the valve hole 324, and an outer air hole 321 connecting the outside of the oxygen chamber with the valve hole 324; wherein, the inner air pressure channel 33 is formed by the inner air hole 323, the valve hole 324 and the intermediate air hole 322, and the outer air pressure channel 34 is formed by the intermediate air hole 322, the valve hole 324 and the outer air hole 321.

[0038] The valve core 31 is fitted into the valve hole 324 and has an inner sealing ring 313 located on the inner side of the inner air hole 323, an outer sealing ring 311 located on the outer side of the outer air hole 321, and an intermediate sealing ring 312 that switches between the inner and outer sides of the intermediate air hole; a sealing ring is provided between each sealing ring and the inner wall of the valve body 32.

[0039] When the valve core 31 is in the external adjustment position, the outer end face of the outer sealing ring 311 abuts against the limit baffle, the middle sealing ring 312 is located between the middle air hole 322 and the outer air hole 321, and the inner sealing ring 313 is located inside the inner air hole 323. In this state, the inner air pressure channel 33 is opened and the outer air pressure channel 34 is cut off, so that the air pressure in the oxygen cabin is connected and balanced with the air pressure in the delivery chamber 12; conversely, the valve core 31 is pushed inward, the end face of the inner sealing ring 313 abuts against the limit baffle, the middle sealing ring 312 is located between the inner air hole 323 and the middle air hole 322, and the outer sealing ring 311 is located outside the outer air hole 321. In this state, the outer air pressure channel 34 is opened and the inner air pressure channel 33 is cut off, so that the air pressure in the delivery chamber 12 is connected and balanced with the air pressure outside the oxygen cabin.

[0040] An inner handle 35 and an outer handle 36 are respectively provided at both ends of the valve core 31 . The inner handle 35 is located inside the oxygen chamber, and the outer handle 36 is located outside the oxygen chamber, so that the staff can push the valve core 31 to switch its position.

[0041] The depth of the air pressure regulating chamber 13 is significantly less than that of the delivery chamber 12, so that the distance between the inner and outer walls of the cylinder body 1 corresponding to the delivery chamber 12 is significantly greater than the distance between the inner and outer walls of the cylinder body 1 corresponding to the air pressure regulating chamber 13. This reduces the axial distance of the air pressure regulating valve 3, facilitating installation and air pressure adjustment. Furthermore, the cylinder body 1 has a recessed portion 11 formed on the inner and outer walls corresponding to the air pressure regulating chamber 13, which is capable of accommodating a handle.

[0042] The outer door handle lock 2 includes a lock body and a self-locking structure 23 provided between the lock body and the outer door cover 4 .

[0043] Among them, when the internal air pressure channel 33 is connected, the self-locking structure 23 is closed, restricting the lock body from opening. When the external air pressure channel 34 is connected, the self-locking structure 23 is opened, and the lock body can be opened at the same time.

[0044] Specifically, the lock body includes a lock frame 25 fixed to the inner and outer sides of the outer door cover 4 by bolts, a lock shaft 21 arranged on the lock frame 25 and passing through the outer door cover 4, a handle 22 arranged at the outer end of the lock shaft 21, and a lock tongue assembly 22 arranged at the inner end of the lock shaft 21 and capable of cooperating with the lock groove 17 on the inner wall of the delivery chamber 12.

[0045] like Figure 4-7 As shown, the self-locking structure 23 includes a positioning groove 2511 provided on the lock frame 25, a positioning sleeve 231 slidingly engaged with the lock tongue assembly 22, and a spring 232 pushing the positioning sleeve 231 back toward the positioning groove 2511. When the internal air pressure channel 33 is connected, the internal air pressure pushes the positioning sleeve 231 to overcome the force of the spring 232 and enter the positioning groove 2511 to limit the rotation of the lock tongue assembly 22 relative to the lock frame 25.

[0046] Specifically, the lock frame 25 includes an inner frame 251 located on the inner side of the outer door cover 4 and an outer frame 252 located on the outer side of the outer door cover 4 . The positioning groove 2511 is formed on the side wall of the inner frame 251 . The lock tongue assembly 22 is provided with a mounting groove 221 extending in the same direction as the lock shaft 21 and for sliding cooperation of the positioning sleeve 231. The bottom of the mounting groove 221 is provided with a positioning column 2211 for the inner end of the spring 232 to be inserted. The outer end of the spring 232 enters the positioning sleeve 231 to push the positioning sleeve 231 outward; an outer limiting step 2311 is provided on the inner end of the positioning sleeve 231, and an inner limiting step for the outer limiting step 2311 to abut on the inner groove wall of the mounting groove 221 to limit the positioning sleeve 231 from separating from the mounting groove 221; a vent hole 24 connected to the outside of the oxygen cabin is provided on the bottom of the mounting groove 221, so that the inner end of the positioning sleeve 231 corresponds to the external air pressure of the oxygen cabin, and the outer end corresponds to the internal air pressure of the delivery chamber 12. An opening 2212 is set on the inner wall of the mounting groove 221 near the bottom of the groove. The mounting groove 221 corresponds to the positioning groove 2511 on the inner frame 251 through the opening 2212. When the positioning sleeve 231 compresses the spring 232 and moves to the bottom of the mounting groove 221, the local position of the outer limit step of the positioning sleeve 231 is located in the positioning groove 2511, limiting the rotation of the lock tongue 22 assembly relative to the inner frame 251.

[0047] In this embodiment, the inner door handle lock is a conventional door lock, and therefore will not be described in detail.

[0048] When it is necessary to pass an object from inside the cabin to outside the cabin, the staff pushes the valve core 31 to the external adjustment position, so that the internal air pressure channel 33 is connected and the external air pressure channel 34 is cut off. The air pressure in the oxygen cabin enters the object delivery chamber 12, so that the air pressure in the oxygen cabin and the air pressure in the object delivery chamber 12 reach equilibrium. The staff in the cabin opens the inner door lock 6, opens the inner door cover 5, and puts the object into the object delivery chamber 12; at the same time, the positioning sleeve 231 overcomes the force of the spring 232 under the action of the air pressure in the cabin and moves to the installation groove 2 The bottom of the groove 21 has a self-locking function for the outer door handle lock 2, and the outer door handle lock 2 cannot be opened; the valve core 31 is pushed to the inner adjustment position, so that the inner air pressure channel 33 is cut off, and the outer air pressure channel 34 is connected. The air pressure in the delivery chamber 12 is connected with the air pressure outside the cabin, so that the air pressures of the two are balanced, and the spring 232 pushes the positioning sleeve 231 outward, so that the outer end of the positioning sleeve 231 is separated from the positioning groove 2511, the self-locking is released, the outer door cover 4 is opened, and the items in the delivery chamber 12 can be taken out.

[0049] When it is necessary to pass items from outside the cabin to inside the cabin, first open the external air pressure channel 34 to balance the air pressure in the delivery chamber 12 and the outside cabin, open the external door cover 4, and place the items outside the cabin in the delivery chamber 12. Then, open the internal air pressure channel 33 to balance the air pressure in the delivery chamber 12 and the inside cabin, open the internal door cover 5, and the personnel inside the cabin take out the items from the delivery chamber 12.

[0050] During this process, the pressure regulating valve 3 can achieve a one-way connection between the external pressure channel 34 and the internal pressure channel 33, preventing the simultaneous opening of both channels. Furthermore, it offers the advantage of convenient operation: when one pressure channel is opened or closed, the other is simultaneously opened or closed, eliminating the need for an operator to operate two air release valves. The external door handle 2 self-locks in the event of a pressure differential between the inside and outside of the oxygen chamber, preventing the external door handle 2 from being opened while the internal pressure channel 33 is open, thus preventing a significant leakage of air pressure from the chamber.

[0051] Unless otherwise specified, in the present invention, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationships in the present invention are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.

[0052] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this disclosure should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A hyperbaric oxygen chamber delivery tube, characterized by: It includes a cylinder and an air pressure regulating valve; The cylinder body is provided with a delivery chamber and an air pressure regulating chamber located on the side of the delivery chamber and connected to the delivery chamber. The cylinder body is provided with an outer door cover and an inner door cover at positions corresponding to the inner and outer sides of the delivery chamber, and the outer door cover and the inner door cover are provided with an outer door handle lock and an inner door handle lock respectively. The air pressure regulating valve comprises a valve body and a valve core; The valve body is arranged at a portion of the cylinder corresponding to the air pressure regulating chamber, and has an internal air pressure channel connecting the air pressure regulating chamber with the internal space of the oxygen chamber and an external air pressure channel connecting the air pressure regulating chamber with the external space of the oxygen chamber; The valve core is movably arranged in the valve body and has an inner adjustment position and an outer adjustment position relative to the valve body; Among them, when the valve core is in the inner adjustment position, the inner air pressure channel is cut off and the outer air pressure channel is opened. When the valve core is in the outer adjustment position, the inner air pressure channel is opened and the outer air pressure channel is cut off. The valve body has a valve hole, and the side wall of the valve body is provided with an inner air hole connecting the interior of the oxygen chamber with the valve hole, an intermediate air hole connecting the air pressure regulating chamber with the valve hole, and an outer air hole connecting the exterior of the oxygen chamber with the valve hole; The inner air pressure channel is formed by the inner air hole, the valve hole and the middle air hole, and the outer air pressure channel is formed by the middle air hole, the valve hole and the outer air hole. The exterior door handle lock comprises a lock body and a self-locking structure; Among them, when the internal air pressure channel is open, the self-locking structure is closed, restricting the lock body from opening; when the external air pressure channel is open, the self-locking structure is opened, and the lock body can be opened at the same time; The lock body includes a lock frame fixed on the outer door cover, a lock shaft arranged on the lock frame and passing through the outer door cover, and a lock tongue assembly arranged at the inner end of the lock shaft and capable of cooperating with a lock groove on the inner wall of the delivery chamber; The self-locking structure includes a positioning groove provided on the lock frame, a positioning sleeve slidingly engaged with the lock tongue assembly, and a spring pushing the positioning sleeve back toward the positioning groove. When the internal air pressure channel is open, the air pressure in the oxygen chamber pushes the positioning sleeve to overcome the spring force and enter the positioning groove, thereby limiting the rotation of the lock tongue assembly relative to the lock frame.

2. The hyperbaric oxygen chamber delivery tube according to claim 1, characterized in that: The valve core is fitted in the valve hole and comprises an inner sealing ring located inside the inner air hole, an outer sealing ring located outside the outer air hole and a middle sealing ring switched between the inner and outer sides of the middle air hole.

3. The hyperbaric oxygen chamber delivery tube according to claim 1, characterized in that: An inner handle and an outer handle are respectively provided at both ends of the valve core. The inner handle is located inside the oxygen chamber, and the outer handle is located outside the oxygen chamber.

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