An emergency manual pressure relief valve for an oxygen chamber

Abstract

This utility model discloses an emergency manual pressure relief valve for an oxygen chamber, including a valve body, a gasket, a shell, a baffle, an elastic element, a connecting rod, a sealing element, a first button, and a second button. In the sealed state, the elastic element presses the baffle against the shell, and the sealing element seals the valve body. When the first button is pushed inward or the second button is pulled inward, the connecting rod moves the sealing element and the baffle, the baffle compresses the elastic element, the sealing element separates from the valve body, and the valve body communicates with the oxygen chamber, thus achieving pressure relief. After pressure relief is completed, releasing the first or second button resets the elastic element, returning it to the sealed state. The advantage is that after the pressure relief operation, it can automatically reset without manual operation, avoiding the problem of the pressure in the oxygen chamber not rising or rising slowly due to failure to reset. Furthermore, the pressure relief operation direction is definite, making it highly convenient. In emergency situations where the pressure in the oxygen chamber is too high, a pressure relief operation can be quickly performed to avoid safety hazards.

Description

Technical Field

[0001] This utility model relates to an emergency manual pressure relief valve, and more particularly to an emergency manual pressure relief valve for an oxygen chamber. Background Technology

[0002] An oxygen chamber used in clinical practice is a medical pressure vessel that uses compressed air or medical oxygen as the pressurizing medium. Patients receive treatment by inhaling oxygen in a high-pressure environment inside the oxygen chamber. To allow for depressurization in case of emergencies where the pressure inside the oxygen chamber becomes too high, emergency manual pressure relief valves are usually installed on the side walls of the oxygen chamber.

[0003] Existing emergency manual pressure relief valves for oxygen chambers typically use a rotating component as the control element, which is rotated to relieve pressure in the oxygen chamber. However, after relieving pressure in the oxygen chamber by rotation, the rotating component must be rotated in the opposite direction to reset the emergency manual pressure relief valve.

[0004] For users, determining whether the aforementioned emergency manual pressure relief valve is in the pressure relief or reset state requires observing the position of the rotating parts and careful consideration. When the emergency manual pressure relief valve is in the pressure relief state, its internal and external parts are connected. Therefore, when pressurizing the oxygen chamber, the pressure inside the chamber may fail to rise or rise slowly due to the emergency manual pressure relief valve not being reset. Furthermore, for users, achieving pressure relief through rotation requires consideration of the direction of rotation, making the operation inconvenient. In emergency situations where the pressure inside the oxygen chamber is too high, users may not be able to promptly depressurize the chamber, posing a significant safety hazard to those inside. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an emergency manual pressure relief valve for oxygen chambers that can automatically reset without manual operation after a pressure relief operation, avoiding the problem of pressure not rising or rising slowly due to failure to reset. In addition, the pressure relief operation direction is certain and the pressure relief operation is highly convenient. In case of emergency where the pressure in the oxygen chamber is too high, a pressure relief operation can be quickly performed to avoid safety hazards.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an emergency manual pressure relief valve for an oxygen chamber, comprising a valve body, a washer, a shell, a baffle, an elastic element, a connecting rod, a sealing element, a first button, and a second button; the valve body has an internal cavity, with multiple air inlets communicating with the cavity on the left end face and an exhaust port communicating with the cavity on the right end face; the washer is sleeved and fixed on the outside of the valve body and is threadedly connected to the valve body; the shell is sleeved on the right end of the valve body and located to the right of the washer, and the shell is threadedly connected to the outer wall of the right end of the valve body; the elastic element and the baffle are both located within the cavity, and the elastic element is located within the cavity. On the left side of the baffle, the left end of the elastic element is connected to the valve body, and the right end is connected to the baffle; the connecting rod passes through the baffle and the elastic element from right to left, and the connecting rod is fixed to the baffle; the baffle is provided with multiple vent holes running through it from left to right; the first button is located on the right side of the valve body and is detachably installed on the right end of the connecting rod; the sealing element is located on the left side of the valve body and is fixed to the connecting rod; the sealing element is used to seal multiple air inlets on the left end face of the valve body; the second button is located on the left side of the sealing element and is detachably installed on the left end of the connecting rod; the connecting rod is provided with a step to limit its leftward movement distance.

[0007] Compared with the prior art, the advantages of this utility model are that the emergency manual pressure relief valve for the oxygen chamber is constructed by a valve body, gasket, outer shell, baffle, elastic element, connecting rod, seal, first button, and second button. In practical application, the side wall of the oxygen chamber has a mounting hole that matches the size of the valve body. The entire emergency manual pressure relief valve for the oxygen chamber, except for the outer shell and the first button, is moved outward from inside the oxygen chamber through the mounting hole until the gasket contacts and is blocked by the side wall of the oxygen chamber. At this time, the outer shell is installed on the valve body, and the first button is installed on the connecting rod. In the initial state, the elastic element presses the baffle against the outer shell, the first button is away from the outer shell, the vent on the baffle is open to the outside, and the seal closes the multiple air inlets on the left end face of the valve body. At this time, the emergency manual pressure relief valve is in a sealed state, isolating the inside of the oxygen chamber from the outside. When it is necessary to depressurize the oxygen chamber, the first button is pushed inward from outside the oxygen chamber or the second button is pulled inward from inside the oxygen chamber. The connecting rod drives the seal and the baffle to move. The baffle compresses the elastic element, separating the seal from the valve body until the step on the connecting rod contacts the valve body. The connecting rod is then blocked and cannot move further. Multiple air inlets on the valve body are connected to the oxygen chamber, while the exhaust port remains exposed. At this point, the emergency manual pressure relief valve for the oxygen chamber is in a pressure relief state. Gas inside the oxygen chamber can enter the cavity through multiple air inlets and then exit through multiple vents and exhaust ports, thus achieving pressure relief. After pressure relief is completed, releasing the first or second button resets the elastic element, and the emergency manual pressure relief valve for the oxygen chamber returns to a sealed state. Therefore, this invention can automatically reset without manual operation after pressure relief, avoiding the problem of pressure not rising or rising slowly in the oxygen chamber due to failure to reset. Furthermore, the direction of pressure relief operation inside and outside the oxygen chamber is uniquely determined, making pressure relief operation highly convenient. In emergency situations where the pressure inside the oxygen chamber is too high, a pressure relief operation can be quickly performed to avoid safety hazards.

[0008] Furthermore, the sealing element includes a sealing gasket and a pressure plate; the sealing gasket is located on the left side of the valve body, and the pressure plate is located on the left side of the sealing gasket; the sealing gasket is attached and fixed to the right end face of the pressure plate; the connecting rod passes through the pressure plate, and the two are fixed together.

[0009] Furthermore, the pressure plate and the connecting rod are fixed together by a threaded connection.

[0010] Furthermore, the valve body includes a cylindrical housing and a flange coaxially fixed to the outside of the housing. The cavity, multiple air inlets and the exhaust port are respectively disposed on the housing. The gasket is located on the right side of the flange, and the two are in a fitted state.

[0011] Furthermore, the outer surface of the baffle is cylindrical, the cavity is cylindrical, and the baffle fits against the side wall of the cavity; the gasket is annular and coaxial with the housing.

[0012] Furthermore, the elastic element is a spring.

[0013] Furthermore, multiple air intakes are evenly spaced around a circumference.

[0014] Furthermore, multiple vents are evenly spaced along a circumference. Attached Figure Description

[0015] Figure 1 This is a perspective view of the emergency manual pressure relief valve for an oxygen chamber according to this utility model; Figure 2 Disassembly of the emergency manual pressure relief valve for the oxygen chamber of this utility model Figure 1 ; Figure 3 Disassembly of the emergency manual pressure relief valve for the oxygen chamber of this utility model Figure 2 ; Figure 4 This is a schematic diagram of the installation of the emergency manual pressure relief valve for the oxygen chamber of this utility model; Figure 5 This is a cross-sectional view of the emergency manual pressure relief valve for the oxygen chamber of this utility model in a sealed state. Figure 6 This is a cross-sectional view of the emergency manual pressure relief valve for the oxygen chamber of this utility model in the pressure relief state. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] Example 1: As Figures 1 to 6 As shown, an emergency manual pressure relief valve for an oxygen chamber includes a valve body 1, a gasket 2, a housing 3, a baffle 4, an elastic element 5, a connecting rod 6, a sealing element 7, a first button 8, and a second button 9. The valve body 1 has an internal cavity, with multiple air inlets 11 communicating with the cavity on its left end face and an exhaust port 12 communicating with the cavity on its right end face. The gasket 2 is fitted and fixed to the outside of the valve body 1 and is threadedly connected to it. The housing 3 is fitted onto the right end of the valve body 1, located to the right of the gasket 2, and is threadedly connected to the outer wall of the right end of the valve body 1. The elastic element 5 and the baffle 4 are both located within the cavity, with the elastic element 5 located to the left of the baffle 4. The left end of the elastic element 5 is connected to the valve body 1, and the right end is connected to the baffle 4; the connecting rod 6 passes through the baffle 4 and the elastic element 5 from right to left, and the connecting rod 6 is fixed to the baffle 4; the baffle 4 is provided with multiple vent holes 41 that pass through from left to right; the first button 8 is located on the right side of the valve body 1 and is detachably installed on the right end of the connecting rod 6; the sealing element 7 is located on the left side of the valve body 1 and is fixed to the connecting rod 6; the sealing element 7 is used to close multiple air inlets 11 on the left end face of the valve body 1; the second button 9 is located on the left side of the sealing element 7 and is detachably installed on the left end of the connecting rod 6; the connecting rod 6 is provided with a step 61 for limiting its leftward movement distance.

[0018] In this embodiment, during practical application, the oxygen chamber sidewall 10 has mounting holes matching the size of the valve body 1. The entire emergency manual pressure relief valve for the oxygen chamber, excluding the outer shell 3 and the first button 8, is moved outward from inside the oxygen chamber through the mounting holes until the gasket 2 contacts and is blocked by the oxygen chamber sidewall 10. Then, the outer shell 3 is installed on the valve body 1, and the first button 8 is installed on the connecting rod. In the initial state, the elastic element 5 presses the baffle 4 against the outer shell 3, the first button 8 is away from the outer shell 3, the vent 41 on the baffle 4 communicates with the outside, and the sealing element 7 seals the multiple air inlets 11 on the left end face of the valve body 1. At this time, the emergency manual pressure relief valve is in a sealed state, isolating the oxygen chamber from the outside. When it is necessary to depressurize the oxygen chamber, the first button 8 is pushed inward from outside the oxygen chamber or the second button 9 is pulled inward from inside the oxygen chamber. The connecting rod 6 moves the sealing element 7 and the baffle 4, the baffle 4 compresses the elastic element 5, and the sealing element 7 separates from the valve body 1 until the connecting rod 6... Step 61 contacts valve body 1, blocking connecting rod 6 from moving further. Multiple air inlets 11 on valve body 1 communicate with the oxygen chamber, while exhaust outlet 12 remains exposed. At this time, the emergency manual pressure relief valve for the oxygen chamber is in a pressure relief state. Gas in the oxygen chamber can enter the cavity through multiple air inlets 11 and then be discharged through multiple vent holes 41 and exhaust outlet 12, thus achieving pressure relief. After pressure relief is completed, release the first button 8 or the second button 9, the elastic element 5 resets, and the emergency manual pressure relief valve for the oxygen chamber returns to a sealed state. Therefore, this utility model can automatically reset without manual operation after pressure relief, avoiding the problem of pressure not rising or rising slowly in the oxygen chamber due to failure to reset. Furthermore, the pressure relief operation direction inside and outside the oxygen chamber is uniquely determined, making pressure relief operation highly convenient. In case of an emergency situation where the pressure inside the oxygen chamber is too high, a pressure relief operation can be quickly performed to avoid safety hazards.

[0019] Example 2: This example is basically the same as Example 1, except that: in this example, the sealing element 7 includes a sealing gasket 71 and a pressure plate 72; the sealing gasket 71 is located on the left side of the valve body 1, and the pressure plate 72 is located on the left side of the sealing gasket 71; the sealing gasket 71 is attached and fixed to the right end face of the pressure plate 72; the connecting rod 6 passes through the pressure plate 72, and the two are fixed together. The pressure plate 72 and the connecting rod 6 are fixed by a threaded connection.

[0020] Example 3: This example is basically the same as Example 2, except that: In this example, the valve body 1 includes a cylindrical shell 13 and a flange 14 coaxially fixed to the outside of the shell 13. A cavity, multiple air inlets 11, and an exhaust port 12 are respectively disposed on the shell 13. The gasket 2 is located on the right side of the flange 14, and the two are in a fitted state. The outer side of the baffle 4 is cylindrical, the cavity is cylindrical, and the baffle 4 is fitted with the side wall of the cavity; the gasket 2 is annular and coaxial with the shell 13.

[0021] Example 4: This example is basically the same as Example 1, except that in this example, the elastic element 5 is preferably a spring.

[0022] Example 5: This example is basically the same as Example 1, except that in this example, multiple air inlets 11 are evenly spaced along a circumference. Multiple vent holes 41 are evenly spaced along a circumference.

[0023] In summary, the emergency manual pressure relief valve for oxygen chambers of this utility model can achieve pressure relief by one-way operation of the first button 8 or the second button 9. After pressure relief is completed, the elastic element 5 rebounds to achieve a seal. Thus, it can automatically reset without manual operation after pressure relief, avoiding the problem of pressure in the oxygen chamber failing to rise or rising slowly due to failure to reset. Furthermore, the pressure relief operation direction is definite, and the pressure relief operation is highly convenient. In case of emergency where the pressure in the oxygen chamber is too high, pressure relief can be performed quickly to avoid safety hazards, and it has broad application prospects.

Claims

1. An emergency manual pressure relief valve for an oxygen cabin, characterized by: The valve body includes a valve body, a gasket, a housing, a baffle, an elastic element, a connecting rod, a seal, a first button, and a second button. The valve body has an internal cavity, with multiple air inlets communicating with the cavity on its left end face and an exhaust port communicating with the cavity on its right end face. The gasket is fitted and fixed to the outside of the valve body and is threaded to it. The housing is fitted onto the right end of the valve body and located to the right of the gasket; the housing is threaded to the outer wall of the right end of the valve body. The elastic element and the baffle are both located within the cavity; the elastic element is located to the left of the baffle, and its left end is connected to the... The valve body is connected, with its right end connected to the baffle. The connecting rod passes through the baffle and the elastic element from right to left, and is fixed to the baffle. The baffle has multiple vent holes running through it from left to right. The first button is located on the right side of the valve body and is detachably mounted on the right end of the connecting rod. The sealing element is located on the left side of the valve body and is fixed to the connecting rod. The sealing element is used to seal multiple air inlets on the left end face of the valve body. The second button is located on the left side of the sealing element and is detachably mounted on the left end of the connecting rod. The connecting rod has a step to limit its leftward movement distance.

2. The emergency hand operated pressure relief valve for use in a chamber according to claim 1, characterized in that: The sealing element includes a sealing gasket and a pressure plate; the sealing gasket is located on the left side of the valve body, and the pressure plate is located on the left side of the sealing gasket; the sealing gasket is attached and fixed to the right end face of the pressure plate; the connecting rod passes through the pressure plate, and the two are fixed together.

3. The emergency hand operated pressure relief valve for use in a chamber according to claim 2, characterized in that: The pressure plate and the connecting rod are fixed together by a threaded connection.

4. The emergency hand operated pressure relief valve for use in a hyperbaric chamber according to claim 2, wherein: The valve body includes a cylindrical housing and a flange coaxially fixed to the outside of the housing. The cavity, multiple air inlets and the exhaust port are respectively disposed on the housing. The gasket is located on the right side of the flange, and the two are in a fitted state.

5. The emergency hand operated pressure relief valve for use in a chamber according to claim 4, characterized in that: The outer side of the baffle is cylindrical, the cavity is cylindrical, and the baffle fits against the side wall of the cavity; the gasket is annular and coaxial with the housing.

6. The emergency hand operated pressure relief valve for use in a chamber according to claim 1, characterized in that: The elastic element is a spring.

7. The emergency hand operated pressure relief valve for use in a chamber according to claim 1, characterized in that: Multiple air intakes are evenly spaced around a circumference.

8. The emergency hand operated pressure relief valve for use in a chamber according to claim 1, characterized in that: Multiple vents are evenly spaced around a circumference.

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