Oxygen cabin deflation valve and oxygen cabin

Abstract

The utility model relates to an oxygen cabin deflation valve and an oxygen cabin, and belongs to the technical field of oxygen cabins. The oxygen cabin deflation valve comprises a valve body, a valve rod and a spring, the valve body is hollow, a limiting ring table is arranged on the valve cover, a rod hole and an air guide hole are formed in the limiting ring table, a pull head is arranged at one end of the valve rod, the other end of the valve rod penetrates through the rod hole to be connected with a pressing head, and the spring is arranged on the valve rod between the pressing head and the limiting ring table in a sleeving mode. A positioning boss is arranged on the valve rod, the inner end face of the positioning boss can make sealing contact with the limiting ring table under the action of the spring, and annular positioning grooves connected with an oxygen cabin body or a cabin door are formed in the outer side of the valve body and the outer side of the valve cover. The oxygen cabin comprises an oxygen cabin deflation valve which is arranged on the cabin body or the cabin door. The oxygen cabin deflation valve is simple in structure and convenient to install and operate, when the oxygen cabin deflation valve is installed on an oxygen cabin, deflation and pressure relief can be conducted on the inner side and the outer side of the oxygen cabin by pressing the pressure head or pulling the pull head, and residual pressure in the cabin can be relieved in time so that a cabin door can be smoothly opened.

Description

Technical Field

[0001] The utility model relates to an oxygen chamber deflation valve and an oxygen chamber, belonging to the technical field of oxygen chambers. Background Art

[0002] The micro-hyperbaric oxygen chamber is a sealed cabin that provides a high concentration of pure oxygen for the user to breathe. The treatment effect is achieved by controlling the air pressure in the cabin. Normally, the air pressure in the cabin is adjusted to a micro-high pressure state, generally around 1.3 atmospheres. This micro-high pressure helps reduce the formation of bubbles in the tissues and promotes blood circulation. When undergoing treatment in a micro-hyperbaric oxygen chamber, the user needs to enter the cabin and stay there for a period of time. During the treatment, the user breathes a high concentration of pure oxygen in a micro-high pressure environment, which can help improve blood circulation, reduce inflammatory responses, and promote wound healing. At present, micro-hyperbaric oxygen chambers have been widely used in the medical field, especially in oxygen therapy.

[0003] Since the air pressure in the oxygen cabin is at a relatively low level, the cabin is first depressurized before leaving the cabin. After the depressurization is completed, there is usually a certain amount of pressure left in the cabin, which may affect the opening of the cabin door. Therefore, the residual pressure in the cabin can be eliminated by operating the deflation valve in the cabin to deflate the air, and then the cabin door can be opened smoothly to leave the cabin; of course, when an abnormal situation is found in the cabin through the observation window, such as an abnormal situation of the elderly in the cabin, external operation is required to release the pressure, and the deflation valve can be used to deflate the air so that the cabin door can be opened in time. The deflation valves on the existing oxygen cabins are mostly unilaterally operated, such as only being able to be operated from the outside of the cabin, or only being able to be operated inside the cabin, which cannot meet the requirements of the above situation. Of course, if two deflation valves are installed, not only the number of valve parts and the cost are increased, but also the cost of sealing and installing the deflation valve on the cabin is increased, and the processing difficulty is increased. Therefore, a deflation valve with a simple structure, convenient operation, and operable both inside and outside the cabin is needed. Summary of the invention

[0004] The utility model aims at the deficiencies in the prior art and provides an oxygen chamber deflation valve.

[0005] The utility model solves the above technical problems with the following technical solutions: an oxygen chamber deflation valve, comprising a valve body, a valve cover arranged on the valve body, a valve stem and a spring, wherein the valve body is hollow inside, a limiting ring is arranged on the inner wall of the valve cover, a rod hole and an air guide hole arranged on the periphery of the rod hole are arranged on the limiting ring, a pull head is arranged at one end of the valve stem, and a pressure head is connected to the other end through the rod hole, and the spring is sleeved on the valve stem between the pressure head and the limiting ring;

[0006] A positioning boss is provided on the valve stem, and a positioning groove for positioning the positioning boss is formed between the cover body of the valve cover and the limiting ring. Under the action of the spring, the inner end surface of the positioning boss can be in sealing contact with the limiting ring, and an annular positioning groove for connecting with the oxygen cabin body or door is provided on the outer side of the valve body and the valve cover.

[0007] The beneficial effects of the utility model are as follows: the design of the valve body and the valve cover facilitates the installation of the deflation valve on the cabin body or the hatch of the oxygen cabin, one end of the spring sleeved on the valve stem acts on the pressure head, the pressure head is connected to the valve stem, and the other end of the spring acts on the limiting ring of the valve cover. Under the action of the spring, the inner end face of the positioning boss of the valve stem abuts against the limiting ring to achieve sealing, and the air path of the oxygen cabin deflation valve is not connected. When the pressure head is pressed or the pull head is pulled, the spring is compressed, and the inner end face of the positioning boss is away from the limiting ring. Gas can enter between the positioning boss and the limiting ring from the valve cover side and be discharged from the valve body side through the air guide hole. The air path is connected, and the oxygen cabin deflation valve can deflate and release pressure. The utility model has a simple structure and is easy to operate. The deflation and pressure relief of the deflation valve can be achieved by pressing the pressure head side, and the deflation and pressure relief of the deflation valve can be achieved by pulling the pull head side. Both ends of the deflation valve can be deflated, so that the purpose of deflation and pressure relief operations can be achieved on both the inner and outer sides of the oxygen cabin.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, there are multiple air guide holes, which are evenly distributed in a circular ring structure. The outer diameter of the positioning boss is equal to or smaller than the outer diameter of the positioning groove, and larger than the outer diameter of the circular ring structure.

[0010] The beneficial effect of adopting the above-mentioned further scheme is that, in order to facilitate the positioning boss on the valve stem to smoothly enter and exit the positioning groove of the valve cover, the outer diameter of the positioning boss is smaller than the diameter of the groove wall of the positioning groove, and multiple air guide holes are evenly distributed on the limiting ring to form a circular ring structure. In order to ensure the seal between the positioning boss and the limiting ring, the outer diameter of the positioning boss is larger than the outer diameter of the circular ring structure, thereby avoiding the problem of air leakage when the air release valve is sealed.

[0011] Furthermore, the valve body is provided with a first external boss, the valve cover is provided with a second external boss, and the annular positioning groove is formed between the first external boss and the second external boss.

[0012] The beneficial effect of adopting the above further solution is that the first external boss is on one side of the door panel of the cabin body or the cabin door, and the second external boss is on the other side of the door panel of the cabin body or the cabin door, thereby achieving stable installation of the valve body on the oxygen cabin.

[0013] Furthermore, a sealing ring is provided in the annular positioning groove, and sealing grooves for installing the sealing ring are respectively provided on the positioning surfaces of the first outer boss and the second outer boss.

[0014] The beneficial effect of adopting the above further solution is to increase the installation stability and sealing between the air release valve and the cabin body or the cabin door.

[0015] Furthermore, the valve stem and the pull head are an integrated structure.

[0016] The beneficial effect of adopting the above further solution is that the integrated structure increases the connection strength between the pull head and the valve stem, and the integrated part is easy and quick to install without affecting the performance of the overall air release valve.

[0017] Furthermore, the valve stem is threadedly connected to the pressure head.

[0018] The beneficial effect of adopting the above further solution is that the valve stem is provided with threads, the pressure head is provided with threaded holes, and the two are connected by threads, which is convenient for connection and subsequent maintenance.

[0019] Furthermore, a ring positioning groove for installing a sealing ring is provided on the inner end surface of the positioning boss.

[0020] The beneficial effect of adopting the above further solution is that, in order to ensure the pressure in the oxygen chamber, a sealing ring is added at the contact surface between the positioning boss and the limiting ring, and the sealing ring is installed in the ring positioning groove for stable positioning.

[0021] Furthermore, a vent hole is provided on the valve body.

[0022] The beneficial effect of adopting the above further scheme is that the gas can pass through the annular cavity formed between the outer wall of the pressure head and the inner wall of the valve body. Of course, the gas can also pass through the vent holes on the outer peripheral surface of the valve body, ensuring that the air path is connected when the air release valve is deflated so that the gas in the cabin can be discharged smoothly.

[0023] Furthermore, a vent hole is provided on the cover body of the valve cover.

[0024] The beneficial effect of adopting the above further scheme is that by pressing the pressure head or pulling the pull head, the positioning boss is moved away from the limiting ring, and the gas can pass through the vent holes on the valve cover, and the inner cavity of the valve cover is connected with the air guide holes to form a ventilation air path, so that the cabin can be deflated smoothly.

[0025] Furthermore, there are multiple vent holes, which are evenly distributed along the outer circumference of the valve body or the valve cover.

[0026] The beneficial effect of adopting the above further solution is that the plurality of vent holes are evenly arranged on the outer peripheral surface of the valve body or the valve cover.

[0027] Furthermore, the valve cover is threadedly connected to the valve body.

[0028] The beneficial effect of adopting the above further solution is that the valve body is provided with an external thread, and the valve cover is provided with an internal thread matching the external thread, and the two are connected by a thread, so installation and maintenance are convenient and quick.

[0029] The utility model also relates to an oxygen cabin, comprising a cabin body and a cabin door, and also comprising the oxygen cabin air release valve as described above, wherein the oxygen cabin air release valve is arranged on the cabin body or the cabin door.

[0030] The beneficial effect of the utility model is that the oxygen cabin using the oxygen cabin deflation valve can be deflated on the outside of the cabin body or on the inside of the cabin body, and one oxygen cabin deflation valve can be operated on both the inside and outside of the cabin body to deflate and relieve pressure in the cabin. The oxygen cabin deflation valve has a simple structure and is easy to install and operate. When installed on the oxygen cabin, it can be deflated and relieved on both the inside and outside of the oxygen cabin by pressing the pressure head or pulling the pull head, and the residual pressure in the cabin can be promptly released to smoothly open the cabin door.

[0031] Further, the pressure head of the oxygen tank air release valve is located on the outside of the cabin body or the cabin door, and the pull head of the oxygen tank air release valve is located on the inside of the cabin body or the cabin door; or the pull head of the oxygen tank air release valve is located on the outside of the cabin body or the cabin door, and the pressure head of the oxygen tank air release valve is located on the inside of the cabin body or the cabin door.

[0032] The beneficial effect of adopting the above further scheme is that when the oxygen chamber air release valve is installed in the oxygen chamber, it can be installed on the cabin body or on the cabin door, such as installing the oxygen chamber air release valve on the cabin door; as for whether the pressure head and the pull head on the oxygen chamber air release valve are inside or outside the oxygen chamber, it can be selected according to actual needs. For example, the pressure head can be set on the outside of the oxygen chamber to facilitate the outside personnel to press and operate the pressure relief. When an abnormal situation is found in the cabin, the pressure head can be pressed in time to relieve the pressure and open the cabin door smoothly. The pull head is set on the inside of the oxygen chamber. When there is an emergency in the cabin, the personnel in the cabin can pull the pull head inward in time to release the residual pressure and open the cabin door smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the oxygen chamber deflation valve of the utility model;

[0034] Figure 2 This is a schematic diagram of the main structure of the oxygen chamber deflation valve of the utility model;

[0035] Figure 3 for Figure 2 The cross-section along the AA direction;

[0036] Figure 4 It is a structural schematic diagram of a deflation state of the oxygen chamber deflation valve of the utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the oxygen chamber of the utility model;

[0038] Figure 6 This is a partial cross-sectional view of the oxygen chamber deflation valve of the utility model on the oxygen chamber

[0039] In the figure, 1. air release valve; 101. valve body; 102. valve cover; 103. valve stem; 104. spring; 105. pressure head; 106. pull head; 107. limit ring; 108. air guide hole; 109. positioning boss; 110. annular positioning groove; 111. first outer boss; 112. second outer boss; 113. vent hole; 114. sealing ring; 115. ring positioning groove; 2. cabin body; 3. cabin door. DETAILED DESCRIPTION

[0040] The principles and features of the present invention are described below in conjunction with examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0041] like Figure 1-Figure 4 As shown, an oxygen chamber deflation valve 1 comprises a valve body 101, a valve cover 102 arranged on the valve body 101, a valve stem 103 and a spring 104, wherein the valve body 101 is hollow inside, a limiting ring platform 107 is arranged on the inner wall of the valve cover 102, a rod hole and an air guide hole 108 arranged on the periphery of the rod hole are arranged on the limiting ring platform 107, a pull head 106 is arranged at one end of the valve stem 103, and a pressure head 105 is connected to the other end through the rod hole, and the spring 104 is sleeved on the valve stem 103 between the pressure head 105 and the limiting ring platform 107;

[0042] The valve stem 103 is provided with a positioning boss 109, and a positioning groove for positioning the positioning boss 109 is formed between the cover body of the valve cover 102 and the limiting ring 107. The inner end surface of the positioning boss 109 can be in sealing contact with the limiting ring 107 under the action of the spring 104. The outer sides of the valve body 101 and the valve cover 102 are provided with an annular positioning groove 110 for connecting with the oxygen chamber body 2 or the door 3. After the valve cover 102 is connected to the valve body 101 by threading, an annular positioning groove 110 connected with the cabin body or the door is formed between the outer sides of the two.

[0043] There are multiple air guide holes 108, which are evenly distributed in a circular ring structure. The outer diameter of the positioning boss 109 is equal to or smaller than the outer diameter of the positioning groove, and larger than the outer diameter of the circular ring structure formed by the air guide holes 108. In order to facilitate the positioning boss 109 on the valve stem 103 to smoothly enter and exit the positioning groove of the valve cover 102, the outer diameter of the positioning boss 109 is smaller than the diameter of the groove wall of the positioning groove. Multiple air guide holes 108 are evenly distributed on the limiting ring platform to form a circular ring structure. In order to ensure the sealing between the positioning boss 109 and the limiting ring platform 107, the outer diameter of the positioning boss 109 is larger than the outer diameter of the circular ring structure, so as to avoid the problem of air leakage when the air release valve 1 is sealed.

[0044] The valve body 101 is provided with a first external boss 111, and the valve cover 102 is provided with a second external boss 112, and the annular positioning groove 110 is formed between the first external boss 111 and the second external boss 112. The first external boss 111 is on one side of the door panel of the cabin body 2 or the cabin door 3, and the second external boss 112 is on the other side of the door panel of the cabin body 2 or the cabin door 3, so that the valve body 101 can be stably installed on the oxygen cabin.

[0045] A sealing ring 114 is disposed in the annular positioning groove 110, and sealing grooves for mounting the sealing ring 114 are disposed on the positioning surfaces of the first outer boss 111 and the second outer boss 112, respectively. The installation stability and sealing performance between the deflation valve 1 and the cabin body 2 or the cabin door 3 are increased.

[0046] The valve stem 103 and the pull head 106 are an integrated structure. The integrated structure increases the connection strength between the pull head 106 and the valve stem 103, and the integrated part is easy and quick to install, and will not affect the performance of the overall deflation valve 1.

[0047] The valve stem 103 is threadedly connected to the pressure head 105. The valve stem 103 is provided with threads, and the pressure head 105 is provided with threaded holes. The two are connected by threads, which is convenient for connection and subsequent maintenance.

[0048] The inner end surface of the positioning boss 109 is provided with a ring positioning groove 115 for installing a sealing ring 114. In order to ensure the pressure in the oxygen chamber, a sealing ring 114 is added at the contact surface between the positioning boss 109 and the limiting ring 107, and the sealing ring 114 is installed in the ring positioning groove 115 for stable positioning.

[0049] The valve body 101 is provided with a vent hole 113. Gas can pass through the annular cavity formed between the outer wall of the pressure head 105 and the inner wall of the valve body 101, and of course, gas can also pass through the vent hole 113 on the outer peripheral surface of the valve body 101, ensuring that the air path of the deflation valve 1 is connected during deflation so that the gas in the cabin 2 can be discharged smoothly.

[0050] The valve cover 102 is provided with a vent hole 113. By pressing the pressure head 105 or pulling the pull head 106, the positioning boss 109 is away from the limiting ring 107, and the gas can pass through the vent hole 113 on the valve cover 102, the inner cavity of the valve cover 102 and the air guide hole 108 to form a ventilation air path, so that the cabin 2 is deflated smoothly.

[0051] There are a plurality of vent holes 113 , which are evenly distributed along the outer circumference of the valve body 101 or the valve cover 102 . The plurality of vent holes 113 are evenly arranged on the outer circumference of the valve body 101 or the valve cover 102 .

[0052] The valve cover 102 is threadedly connected to the valve body 101. The valve body 101 is provided with an external thread, and the valve cover 102 is provided with an internal thread matching the external thread. The two are threadedly connected, and installation and maintenance are convenient and quick.

[0053] Embodiment 1, as Figure 5 and Figure 6 As shown, the utility model also relates to an oxygen chamber, comprising a chamber body 2 and a chamber door 3, and also comprising the oxygen chamber air release valve 1 as described above, wherein the oxygen chamber air release valve 1 is arranged on the chamber body 2 or the chamber door 3.

[0054] The pressure head 105 of the oxygen chamber deflation valve 1 is located on the outside of the chamber body 2 or the door 3, and the pull head 106 of the oxygen chamber deflation valve 1 is located on the inside of the chamber body 2 or the door 3. When the oxygen chamber is installed, the oxygen chamber deflation valve 1 can be installed on the chamber body 2 or on the door 3. Figure 5 As shown, the oxygen chamber deflation valve 1 is installed on the cabin door 3; as for the pressure head 105 and the pull head 106 on the oxygen chamber deflation valve 1, it can be selected inside or outside the oxygen chamber according to actual needs, such as Figure 5 As shown, the pressure head 105 is arranged on the outside of the oxygen chamber, so that the outside personnel can press it to release the pressure. When an abnormal situation is found in the cabin, the pressure head 105 can be pressed in time to release the pressure and open the cabin door 3 smoothly. The pull head 106 is arranged on the inside of the oxygen chamber. When there is an emergency in the cabin, the personnel in the cabin can also pull the pull head 106 inward in time to release the residual pressure and open the cabin door 3 smoothly.

[0055] In Example 2, the pull head 106 of the oxygen chamber deflation valve 1 is located on the outside of the chamber 2 or the door 3, and the pressure head 105 of the oxygen chamber deflation valve 1 is located on the inside of the chamber 2 or the door 3. The remaining structures are the same as those in Example 1, so they will not be described in detail here.

[0056] One end of the spring 104 sleeved on the valve stem 103 acts on the pressure head 105, and the pressure head 105 is connected to the valve stem 103. The other end of the spring 104 acts on the limiting ring 107 on the valve cover 102. Under the action of the spring 104, the inner end surface of the positioning boss 109 of the valve stem 103 abuts against the limiting ring 107 to achieve sealing. The air path of the oxygen chamber deflation valve 1 is not connected. When pressure is applied to the pressure head 105 or the pull head 106 is pulled, the spring 104 is compressed, and the inner end surface of the positioning boss 109 is away from the limiting ring 107. The gas can enter between the positioning boss 109 and the limiting ring 107 from the valve cover side and be discharged from the valve body 101 side through the air guide hole 108. The air path is connected, and the oxygen chamber deflation valve 1 can deflate and release pressure. The oxygen cabin using the oxygen cabin deflation valve 1 can be deflated on the outside of the cabin body 2 or by pulling the pull head on the inside of the cabin body 2. One oxygen cabin deflation valve 1 can be operated on both the inside and outside of the cabin body 2 to deflate and relieve pressure in the cabin body 2. The oxygen cabin deflation valve 1 has a simple structure and is easy to install and operate. When installed on the oxygen cabin, it can be deflated and relieved by pressing the pressure head 105 or pulling the pull head 106, so that the residual pressure in the cabin can be released in time and the cabin door 3 can be opened smoothly.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oxygen chamber deflation valve (1), characterized in that: The valve body (101) comprises a valve body (101), a valve cover (102) arranged on the valve body (101), a valve stem (103) and a spring (104); the valve body (101) is hollow inside; a limiting ring (107) is arranged on the inner wall of the valve cover (102); the limiting ring (107) is provided with a rod hole and an air guide hole (108) arranged outside the rod hole; a pull head (106) is arranged at one end of the valve stem (103); and a pressure head (105) is connected to the other end through the rod hole; and the spring (104) is sleeved on the valve stem (103) between the pressure head (105) and the limiting ring (107); The valve stem (103) is provided with a positioning boss (109), and a positioning groove for positioning the positioning boss (109) is formed between the cover body of the valve cover (102) and the limiting ring (107). Under the action of the spring (104), the inner end surface of the positioning boss (109) can be in sealing contact with the limiting ring (107), and the outer sides of the valve body (101) and the valve cover (102) are provided with an annular positioning groove (110) for connecting with the oxygen chamber body (2) or the cabin door (3).

2. The oxygen chamber deflation valve (1) according to claim 1, characterized in that: There are multiple air guide holes (108) that are evenly distributed in a circular ring structure. The outer diameter of the positioning boss (109) is equal to or smaller than the outer diameter of the positioning groove, and larger than the outer diameter of the circular ring structure formed by the air guide holes (108).

3. The oxygen chamber deflation valve (1) according to claim 1, characterized in that: The valve body (101) is provided with a first external boss (111), the valve cover (102) is provided with a second external boss (112), and the annular positioning groove (110) is formed between the first external boss (111) and the second external boss (112).

4. The oxygen chamber deflation valve (1) according to claim 3, characterized in that: A sealing ring (114) is provided in the annular positioning groove (110), and sealing grooves for installing the sealing ring (114) are respectively provided on the positioning surfaces of the first external boss (111) and the second external boss (112).

5. The oxygen chamber deflation valve (1) according to claim 1, characterized in that: The valve stem (103) and the pull head (106) are an integral structure.

6. The oxygen chamber deflation valve (1) according to any one of claims 1 to 5, characterized in that: The valve stem (103) is threadedly connected to the pressure head (105); and / or a ring positioning groove (115) for installing a sealing ring (114) is provided on the inner end surface of the positioning boss (109).

7. The oxygen chamber deflation valve (1) according to any one of claims 1 to 5, characterized in that: A vent hole (113) is provided on the valve body (101) and / or the cover body of the valve cover (102); and / or the valve cover (102) is threadedly connected to the valve body (101).

8. The oxygen chamber deflation valve (1) according to claim 7, characterized in that: There are a plurality of vent holes (113) which are evenly distributed along the outer circumference of the valve body (101) or the valve cover (102).

9. An oxygen chamber, comprising a chamber body (2) and a chamber door (3), characterized in that: It also comprises an oxygen chamber deflation valve (1) as claimed in any one of claims 1 to 8, wherein the oxygen chamber deflation valve (1) is arranged on the chamber body (2) or the chamber door (3).

10. The oxygen chamber according to claim 9, characterized in that: The pressure head (105) of the oxygen chamber air release valve (1) is located on the outside of the chamber body (2) or the cabin door (3), and the pull head (106) of the oxygen chamber air release valve (1) is located on the inside of the chamber body (2) or the cabin door (3); or the pull head (106) of the oxygen chamber air release valve (1) is located on the outside of the chamber body (2) or the cabin door (3), and the pressure head (105) of the oxygen chamber air release valve (1) is located on the inside of the chamber body (2) or the cabin door (3).

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