Fireproof valve and oxygen generator

Abstract

The fireproof valve comprises a first valve body, a second valve body, a first sealing piece, a valve element and an elastic piece, and the first valve body is provided with a first connecting end and an air inlet end; the second valve body is provided with a second connecting end and an air outlet end, one of the first connecting end and the second connecting end sleeves and is in threaded connection with the other one of the first connecting end and the second connecting end, and the first connecting end and the second connecting end are connected to form a ventilation cavity; the first sealing element is arranged on one of the first connecting end and the second connecting end and is propped against the other one of the first connecting end and the second connecting end; the valve element is arranged in the ventilation cavity and provided with a rod part extending to the air outlet end. The elastic piece is arranged in the first valve body and elastically abuts against the valve element, the first sealing piece and the first connecting end or the second connecting end are encapsulated to be of an integrally-formed structure, the problem that parts are prone to loss due to the fact that the parts are small can be avoided, the number of the whole parts can be reduced, and the assembling time is greatly shortened.

Description

Technical Field

[0001] This application relates to the field of fire damper technology, and in particular to a fire damper and an oxygen generator. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen using air separation technology. Utilizing the adsorption properties of molecular sieves, and through physical principles powered by a high-displacement oil-free compressor, it separates nitrogen and oxygen from the air, ultimately obtaining a high concentration of oxygen. This type of oxygen concentrator produces oxygen rapidly and at a high concentration, making it suitable for oxygen therapy and health maintenance for various groups of people.

[0003] The oxygen output from an oxygen concentrator is a combustion aid for most combustibles. Most substances in daily life can burn more intensely with the aid of oxygen. Therefore, the oxygen output end of an oxygen concentrator needs to have the ability to cut off the oxygen output when there is a fire outside. In the existing technology, a fire damper is usually installed at the outlet of the oxygen concentrator. The outlet end of the fire damper deforms due to heat, causing the valve core to pop out a certain distance. The popped-out valve core seals against the valve body, thereby blocking the output of oxygen.

[0004] However, fire dampers in related technologies have a large number of parts, are complex to assemble, and the parts are small and easily lost during assembly. Utility Model Content

[0005] Therefore, it is necessary to provide a fire damper and oxygen generator that can avoid the problem of easy loss due to the small size of the parts, and can reduce the number of overall parts, thus greatly reducing the assembly time.

[0006] A fire damper, comprising:

[0007] A first valve body, the first valve body having a first connecting end and an air inlet end disposed opposite to each other;

[0008] The second valve body has a second connecting end and an air outlet end that are disposed opposite to each other. One of the first connecting end and the second connecting end is sleeved on the other of the first connecting end and the second connecting end. The first connecting end and the second connecting end are threadedly connected, and the first connecting end and the second connecting end are connected to form a ventilation chamber.

[0009] The first sealing element is disposed on one of the first connecting end and the second connecting end, and abuts against the other of the first connecting end and the second connecting end. The first sealing element and the first connecting end or the second connecting end are integrally molded with a rubber coating.

[0010] A valve core, wherein the valve core is disposed in the venting chamber and has a rod portion extending to the outlet end;

[0011] An elastic element is disposed within the first valve body and elastically abuts against the valve core.

[0012] In one embodiment, the second connecting end is sleeved outside the first connecting end, and the first sealing member is disposed at the end of the first connecting end near the second connecting end and can abut against the second connecting end.

[0013] In one embodiment, the first connecting end is sleeved outside the second connecting end, and the first sealing member is disposed at the end of the second connecting end near the first connecting end and can abut against the first connecting end.

[0014] In one embodiment, a first receiving groove is provided in the first connecting end, and a second receiving groove is provided at one end of the valve core near the first connecting end. The first receiving groove and the second receiving groove are arranged opposite to each other, and the two ends of the elastic member are respectively located in the first receiving groove and the second receiving groove.

[0015] In one embodiment, the air inlet has a first through hole communicating with the ventilation chamber, and the air outlet has a second through hole communicating with the ventilation chamber; the valve core includes an abutment portion housed within the ventilation chamber, the rod portion is disposed at one end of the abutment portion, and the rod portion is movably disposed within the second through hole.

[0016] In one embodiment, a second seal is provided at one end of the abutment portion near the rod portion, and the second seal is capable of abutting against the inner sidewall of the second connecting end.

[0017] In one embodiment, the second seal and the abutment portion are integrally molded.

[0018] In one embodiment, both the valve core and the stem are made of flame-retardant plastic material.

[0019] In one embodiment, the elastic element includes a spring.

[0020] This application also provides an oxygen generator, including the fire damper described above.

[0021] In the above solution, by setting a first sealing element, the gap between the first connecting end and the second connecting end can be sealed to prevent oxygen in the ventilation chamber from leaking out through the gap between the first connecting end and the second connecting end. By making the first sealing element and the first connecting end or the second connecting end into an integral molded structure, the problem of easy leakage due to small parts can be avoided, and the number of overall parts can be reduced, greatly reducing assembly time. Under normal circumstances, the elastic element is in a compressed state, and there is a gap between the valve core and the second connecting end, allowing oxygen to flow between the inlet end, the outlet end, and the ventilation chamber. When an accident causes the outlet end to catch fire, the end of the rod near the outlet end will melt and the elastic element will apply a force to the valve core moving towards the second connecting end, causing the valve core to abut against the second connecting end, thereby preventing oxygen in the ventilation chamber from entering the second through hole, thus preventing the output oxygen from aiding combustion. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional view of a fire damper according to an embodiment of this application.

[0025] Figure label:

[0026] 10. Fire damper; 100. First valve body; 110. First connecting end; 120. Air inlet end; 121. First through hole; 200. Second valve body; 210. Second connecting end; 220. Air outlet end; 221. Second through hole; 300. First sealing element; 400. Valve core; 410. Stem portion; 420. Abutment portion; 500. Elastic element; 600. Ventilation chamber; 700. Second sealing element. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] Please see Figure 1 The embodiments of this application relate to a fire damper 10, including a first valve body 100, a second valve body 200, a first sealing element 300, a valve core 400 and an elastic element 500. The second valve body 200 is connected to the first valve body 100 to form a chamber. The first sealing element 300, the valve core 400 and the elastic element 500 are all formed in the chamber.

[0034] The first valve body 100 has a first connecting end 110 and an air inlet end 120 disposed opposite to each other, the air inlet end 120 being used to input oxygen.

[0035] The second valve body 200 has a second connecting end 210 and an outlet end 220 disposed opposite to each other, the outlet end 220 being used to output oxygen to the outside. The first connecting end 110 and the second connecting end 210 are connected to form a ventilation chamber 600.

[0036] Specifically, the air inlet 120 has a first through hole 121 communicating with the ventilation chamber 600, and the air outlet 220 has a second through hole 221 communicating with the ventilation chamber 600. The first through hole 121, the second through hole 221 and the ventilation chamber 600 are interconnected, and oxygen can enter the ventilation chamber 600 through the first through hole 121 and then flow out through the second through hole 221.

[0037] One of the first connecting end 110 and the second connecting end 210 is sleeved on the other of the first connecting end 110 and the second connecting end 210, and the first connecting end 110 and the second connecting end 210 are threadedly connected. Specifically, the first connecting end 110 is provided with a first thread, and the second connecting end 210 is provided with a second thread, and the first thread and the second thread are threadedly connected.

[0038] The first sealing element 300 is disposed on one of the first connecting end 110 and the second connecting end 210, and abuts against the other of the first connecting end 110 and the second connecting end 210. The first sealing element 300 can seal the gap between the first connecting end 110 and the second connecting end 210 to prevent oxygen in the ventilation chamber 600 from leaking out from the gap between the first connecting end 110 and the second connecting end 210.

[0039] The first sealing element 300 and the first connecting end 110 or the second connecting end 210 are integrally molded with silicone. Specifically, the first sealing element 300 is made of silicone. By integrally molding the first sealing element 300 and the first connecting end 110 or the second connecting end 210 with silicone, the problem of easy loss due to the small size of the parts can be avoided, and the number of overall parts can be reduced, greatly reducing assembly time.

[0040] A valve core 400 is disposed within a chamber and has a stem 410 extending to an outlet end 220. An elastic member 500 is disposed within the first valve body 100 and elastically abuts against the valve core 400. The elastic member 500 applies a force to the valve core 400 toward the second connection end 210. Exemplarily, the elastic member 500 is a spring.

[0041] Under normal circumstances, oxygen can enter the ventilation chamber 600 through the first through hole 121 and then flow out through the second through hole 221. Under normal circumstances, the elastic element 500 is in a compressed state, and there is a gap between the valve core 400 and the second connecting end 210, allowing oxygen to flow through this gap. If an accident causes the outlet end 220 to catch fire, the end of the rod 410 near the outlet end 220 will melt and break. The elastic element 500 will exert a force on the valve core 400, causing it to move towards the second connecting end 210, thus bringing the valve core 400 into contact with the second connecting end 210. This prevents oxygen in the ventilation chamber 600 from entering the second through hole 221, thereby preventing the output oxygen from aiding combustion.

[0042] Please see Figure 1 According to some embodiments of this application, optionally, the second connecting end 210 is sleeved outside the first connecting end 110. The first sealing member 300 is disposed at the end of the first connecting end 110 near the second connecting end 210 and can abut against the second connecting end 210.

[0043] Specifically, the first thread is provided on the outer side wall of the first connecting end 110, and the second thread is provided on the inner side wall of the second connecting end 210.

[0044] Please see Figure 1 According to some embodiments of this application, optionally, the first connecting end 110 is sleeved outside the second connecting end 210. The first sealing member 300 is disposed at the end of the second connecting end 210 near the first connecting end 110 and can abut against the first connecting end 110.

[0045] Specifically, the first thread is provided on the inner side wall of the first connecting end 110, and the second thread is provided on the outer side wall of the second connecting end 210.

[0046] Please see Figure 1According to some embodiments of this application, optionally, a first receiving groove is provided in the first valve body 100, and a second receiving groove is provided at the end of the valve core 400 away from the air outlet 220. The first receiving groove and the second receiving groove are arranged opposite to each other, and the two ends of the elastic member 500 are respectively located in the first receiving groove and the second receiving groove.

[0047] Specifically, the first connecting end 110, the second connecting end 210, the first through hole 121, and the second through hole 221 are coaxially arranged. The first receiving groove is disposed between the venting chamber 600 and the first through hole 121. The elastic element 500 is detachably connected to the first receiving groove and the second receiving groove, which facilitates the quick replacement of the elastic element 500 and the quick assembly and disassembly of the first connecting end 110 and the second connecting end 210.

[0048] Please see Figure 1 According to some embodiments of this application, optionally, the valve core 400 includes an abutment portion 420 housed within the vent chamber 600, a rod portion 410 disposed at one end of the abutment portion 420, and the rod portion 410 is movably disposed within the second through hole 221. Specifically, a second sealing member 700 is provided at one end of the abutment portion 420 near the rod portion 410, and the second sealing member 700 is capable of abutting against the inner sidewall of the second connecting end 210.

[0049] When an accident causes the outlet end 220 to catch fire, the end of the rod 410 near the outlet end 220 melts off. The elastic element 500 applies a force to the valve core 400 toward the second connecting end 210, so that the valve core 400 abuts against the second connecting end 210. The second sealing element 700 can block the gap between the valve core 400 and the second connecting end 210 to prevent oxygen in the ventilation chamber 600 from entering the second through hole 221 through the gap between the valve core 400 and the second connecting end 210, thereby preventing the output oxygen from aiding combustion.

[0050] Specifically, a third receiving groove is provided at the end of the abutment portion 420 near the rod portion 410, and the second sealing member 700 is disposed in the third receiving groove. More specifically, the end of the second sealing member 700 away from the abutment portion 420 is on the same plane as the end of the abutment portion 420 away from the first connecting end 110. Alternatively, the end of the second sealing member 700 away from the abutment portion 420 is slightly higher than the end of the abutment portion 420 away from the first connecting end 110.

[0051] Please see Figure 1 According to some embodiments of this application, optionally, the second seal 700 and the abutment portion 420 are integrally molded with silicone. Specifically, the second seal 700 is made of silicone. By integrally molding the second seal 700 and the abutment portion 420 with silicone, the problem of easy loss due to the small size of the parts can be avoided, and the number of overall parts can be reduced, greatly reducing assembly time.

[0052] Please see Figure 1 According to some embodiments of this application, optionally, both the valve core 400 and the stem 410 are made of flame-retardant plastic material. Specifically, the valve core 400 and the stem 410 are integrally molded structures. By setting the valve core 400 and the stem 410 as an integrally molded structure, the connection strength between the valve core 400 and the stem 410 can be guaranteed.

[0053] Flame-retardant plastic materials are not easily combustible or can slow down the burning rate. When the rod 410 catches fire, the valve core 400 and the rod 410, which are made of flame-retardant plastic materials, can slow down the burning rate.

[0054] This application also provides an oxygen generator, which includes the fire damper 10 as described above.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fire damper valve, characterized in that The fireproof valve comprises: a first valve body having a first connecting end and an air inlet end arranged oppositely; a second valve body having a second connecting end and an air outlet end arranged oppositely, one of the first connecting end and the second connecting end being sleeved on the other of the first connecting end and the second connecting end, the first connecting end and the second connecting end being threadedly connected, and the first connecting end and the second connecting end being connected to form an air passage chamber; a first sealing member made of silica gel, the first sealing member being arranged on one of the first connecting end and the second connecting end and abutting against the other of the first connecting end and the second connecting end, the first sealing member and the first connecting end or the second connecting end being integrally formed in a structure of encapsulation; a valve core arranged in the air passage chamber and having a rod portion extending to the air outlet end; a resilient member arranged in the first valve body and elastically abutting against the valve core.

2. The fire damper according to claim 1, characterized in that The second connecting end is sleeved on the first connecting end, the first sealing member is arranged on one end of the first connecting end close to the second connecting end and can abut against the second connecting end.

3. The fire damper according to claim 1, wherein The first connecting end is sleeved on the second connecting end, the first sealing member is arranged on one end of the second connecting end close to the first connecting end and can abut against the first connecting end.

4. The fire damper of claim 1, wherein, The first connecting end is provided with a first accommodating groove, the valve core is provided with a second accommodating groove on one end close to the first connecting end, the first accommodating groove and the second accommodating groove are arranged oppositely, and two ends of the resilient member are respectively located in the first accommodating groove and the second accommodating groove.

5. The fire damper of claim 1, wherein, The air inlet end is provided with a first through hole communicating with the air passage chamber, the air outlet end is provided with a second through hole communicating with the air passage chamber, the valve core comprises an abutting portion accommodated in the air passage chamber, the rod portion is arranged on one end of the abutting portion, and the rod portion is movably arranged in the second through hole.

6. A fire damper according to claim 5, characterised in that The abutting portion is provided with a second sealing member on one end close to the rod portion, and the second sealing member can abut against an inner side wall of the second connecting end.

7. A fire damper according to claim 6, characterised in that The second sealing member and the abutting portion are integrally formed in a structure of encapsulation.

8. The fire damper of claim 1, wherein, The valve core and the rod portion are made of flame-retardant plastic material.

9. The fire damper according to claim 1, wherein The resilient member comprises a spring.

10. An oxygen generator, characterized by comprising: The oxygen generator comprises the fireproof valve according to any one of claims 1 to 9.

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