Door structure under negative pressure acting thereon for positive pressure chamber apparatus and positive pressure chamber apparatus of vertical tower type including the door structure

Abstract

The present invention relates to a negative pressure acting door structure for a positive pressure chamber device, which reliably ensures the airtightness of a chamber equipped with the door structure by applying vacuum or negative pressure to the door structure included in the positive pressure chamber device, and a vertical tower-type positive pressure chamber device including the same. According to the present invention, a negative pressure acting door structure is provided, comprising: an upper and lower bracket member fixed to the upper and lower ends of the entrance / exit portion of a positive pressure chamber body; a door frame member formed with an opening that allows entry and exit, wherein the upper and lower ends are each fixed to the upper and lower bracket members; a door member rotatably coupled to the upper and lower bracket members with one end as an axis to open and close the opening of the door frame member; and a door negative pressure acting means provided on the door frame member and configured to apply negative pressure to the door member.

Description

Technology Field

[0001] The present invention relates to a negative pressure acting door structure for a positive pressure chamber device and a vertical tower-type positive pressure chamber device including the same. More specifically, the invention relates to a negative pressure acting door structure for a positive pressure chamber device and a vertical tower-type positive pressure chamber device including the same, wherein vacuum or negative pressure is applied to the door structure included in the positive pressure chamber device to reliably ensure the airtightness of the chamber equipped with the door structure. Background Technology

[0003] An oxygen chamber, which is a type of positive pressure therapy device used to treat carbon monoxide poisoning, burns, decompression sickness, etc., is used by applying a pressure higher than atmospheric pressure (positive pressure) inside the chamber while a person is accommodated inside the chamber.

[0004] Positive airway pressure (PAP) therapy devices are medical devices designed to increase oxygen solubility in the blood by utilizing Henry's Law. Generally, a PAP device accommodates a user, such as a patient, inside a chamber. In this scenario, the user inside the chamber can achieve various therapeutic effects, such as cell healing and regeneration, as well as fatigue recovery, as the oxygen solubility in the blood increases due to the high-pressure environment within the chamber.

[0005] In the chamber of such positive pressure therapy devices, the door is an important part that serves as an entry point for people while simultaneously acting as an airtight seal to prevent internal pressure from leaking out.

[0006] FIG. 1 is a drawing showing the door structure of a conventional positive pressure chamber, where (A) shows an example of a hinged door and (B) shows an example of a sliding door.

[0007] The door of the multi-person positive pressure chamber currently in use is a hinged or sliding type as shown in Fig. 1, and is configured to open and close from the inside of the chamber due to the high pressure inside the chamber.

[0008] Recently, the demand for single-person chambers has been increasing in the chamber market compared to multi-person chambers, and lowering the manufacturing cost of single-person chambers is an important task.

[0009] Figure 2 is a drawing showing an example of a compact single-seat oxygen chamber.

[0010] In order to lower the manufacturing cost of the chamber, the size of the chamber must be made compact as shown in Fig. 2. However, in this case, the door sealing methods used in the multi-person chamber of Fig. 1 have complex structures, making it virtually impossible to apply them to a compact chamber.

[0011] Figure 3 is a drawing showing existing single-person oxygen chambers of the reclining type. In the case of a single-person chamber, a door structure that opens and closes from the outside of the chamber can be adopted as shown in Figure 3. In this case, since the door is pressurized while in a perfectly airtight state, the patient cannot escape on their own in an emergency situation even if there is no internal pressure.

[0012] In addition, since the reclining type single-person oxygen chamber shown in Fig. 3 has a horizontal (reclining) structure, it requires a length of about 4m when considering the patient accommodation space of the chamber, and given that most hospitals in Korea are small-scale, it is not easy to install and apply.

[0013] Therefore, in order to design a compact single-person chamber, a vertical structure rather than a horizontal structure is required, and a square type rather than a cylindrical type is ideal. To achieve this, a door suitable for a single-person chamber with a square type vertical structure must be developed.

[0014] To manufacture a vertical oxygen chamber with a compact size like that shown in Fig. 3, an external hinged door is the most ideal.

[0015] However, since the inside of the chamber must maintain a pressure higher than atmospheric pressure, an external hinged door is not a suitable structure for maintaining the airtightness of the oxygen chamber.

[0016] Therefore, there is a need for research and development on door structures for vertical tower-type positive pressure chambers that can reliably maintain the airtightness of the oxygen chamber.

[0017] In other words, research and development are required for a door structure that can secure the airtightness of a chamber by forming a vacuum at the contact surface between the external hinge door and the entrance / exit of the chamber in a positive pressure chamber and pressing the chamber door with the force of atmospheric pressure. Prior art literature

[0019] Republic of Korea Registered Patent Publication No. 10-2470682 (Published Nov. 25, 2022) Republic of Korea Registered Patent Publication No. 10-2221663 (Published Mar. 02, 2021) Republic of Korea Registered Patent Publication No. 10-2430270 (Published Aug. 25, 2022) Republic of Korea Published Patent Publication No. 10-2023-0087146 (Published June 16, 2023) Republic of Korea Published Patent Publication No. 10-2023-0053863 (Published April 24, 2023) The problem to be solved

[0020] Accordingly, the present invention, which aims to solve the aforementioned conventional problems, provides a negative pressure acting door structure for a positive pressure chamber device and a vertical tower-type positive pressure chamber device including the same, wherein vacuum or negative pressure is applied to the door structure included in the positive pressure chamber device to reliably ensure the airtightness of the chamber equipped with the door structure.

[0021] The problems solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0023] According to one aspect of the present invention for achieving the above objectives and other features of the present invention, a door structure provided for an entrance / exit portion of a positive pressure chamber device comprises: an upper and lower bracket member fixed to the upper and lower portions of the entrance / exit portion of a positive pressure chamber body; a door frame member formed with an opening that allows entry and exit, wherein the upper portion and the lower portion are each fixed to the upper and lower bracket member; a door member rotatably coupled to the upper and lower bracket member with one end as an axis to open and close the opening of the door frame member; and a door sound pressure acting means provided on the door frame member and configured to apply sound pressure to the door member.

[0024] In one aspect of the present invention, the upper and lower bracket members include an upper bracket member in the shape of an "L" and a lower bracket member that is vertically inverted from the upper bracket member, a hinge shaft is provided on the end side of the horizontal portion of the upper and lower bracket members, and the door member may be provided with a hinge bore into which the hinge shaft is rotatably inserted and mounted.

[0025] In one aspect of the present invention, the door frame member is formed as a ring-shaped frame, and a packing member is provided at the edge of the opening of the door frame member facing the door member, and the door member may be formed in a shape that covers the opening of the door frame member.

[0026] In one aspect of the present invention, the door sound pressure acting means may include: a vacuum acting groove formed on one surface of the door frame member with a predetermined width and depth; a sound pressure acting passage formed at one or more locations of the vacuum acting groove to introduce vacuum pressure from the outside and act on the vacuum acting groove; and a packing portion formed on at least one of the outer and inner sides of the door frame member with respect to the vacuum acting groove.

[0027] In one aspect of the present invention, the packing portion may include: an outer packing portion provided along the outer edge of the door frame member, separated from the vacuum working groove portion on the side where the vacuum working groove portion is formed; and an inner packing portion provided along the inner edge of the door frame member, separated from the vacuum working groove portion on the side where the vacuum working groove portion is formed.

[0028] In one aspect of the present invention, the packing portion may include: an outer packing portion provided to partition the space between the outer side of the door frame member and the vacuum working groove portion when the door member is closed; and an inner packing portion provided to partition the space between the interior of the positive pressure chamber device and the vacuum working groove portion when the door member is closed.

[0029] In one aspect of the present invention, the area of ​​the opening of the door frame member and the area of ​​the vacuum working groove may be formed in a ratio of 7.5:1.

[0030] According to another aspect of the present invention, a positive pressure chamber device comprising a negative pressure acting door structure according to the above-mentioned aspect is provided.

[0031] According to another aspect of the present invention, a vertical tower-type positive pressure chamber device is provided, comprising: a rectangular positive pressure chamber body having an entrance / exit formed therein; a negative pressure acting door structure according to claim 1 provided at the entrance / exit of the positive pressure chamber body; a positive pressure generating means connected to generate positive pressure inside the positive pressure chamber body; and a negative pressure generating means configured to apply negative pressure to the negative pressure acting door structure.

[0032] In another aspect of the present invention, the positive pressure chamber body may be provided with a square tubular reinforcing member on its outer surface. Effects of the invention

[0034] The negative pressure acting door structure for a positive pressure chamber device according to the present invention and the vertical tower-type positive pressure chamber device including the same provide the following effects.

[0035] First, the present invention has the effect of reliably ensuring the airtightness of the chamber by allowing negative pressure or vacuum to be applied to the door structure itself, which is the opening and closing mechanism of the positive pressure chamber.

[0036] Second, the present invention has the effect of allowing the door structure to be applied to a vertical tower-type chamber in a hinge rotational manner, thereby enabling the positive pressure chamber to be manufactured relatively very compactly.

[0037] Third, the present invention has the effect of reducing manufacturing and material costs by using relatively low-capacity vacuum pumps and compressors, as it allows the required degree of negative pressure action (or degree of vacuum action) to be lowered while maintaining the target pressure of the positive pressure chamber through a specific structure of the negative pressure action part or vacuum action part in the door structure.

[0038] Fourth, the present invention is compact enough to be easily accommodated in small hospitals, and has the effect of being easily moved and installed at a site where treatment using a positive pressure chamber is required, allowing treatment to be performed on-site using a positive pressure chamber.

[0039] The effects of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0041] FIG. 1 is a drawing showing the door structure of a conventional positive pressure chamber, where (A) shows an example of a hinged door and (B) shows an example of a sliding door. Figure 2 is a drawing showing an example of a compact single-seat oxygen chamber. Figure 3 is a drawing showing existing single-person oxygen chambers of the recumbent type. FIG. 4 is a drawing showing a vertical tower-type positive pressure chamber device including a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 5 is a drawing showing a vertical tower-type positive pressure chamber device including a negative pressure action door structure for a positive pressure chamber device according to the present invention in disassembly. FIG. 6 is a front view of a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 7 is a drawing showing a part of a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 8 is a drawing showing a part of a door frame member included in a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 9 is a drawing showing the overall configuration of a vertical tower-type positive pressure chamber device including a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 10 is a drawing showing another embodiment of a positive pressure chamber body included in a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 11 is a drawing showing another embodiment of a positive pressure chamber body provided in a vertical tower-type positive pressure chamber device having a negative pressure action door structure for a positive pressure chamber device according to the present invention. FIG. 12 is a photograph of a device fabricated for testing a vertical tower-type positive pressure chamber device according to the present invention. Figure 13 is a diagram showing the positive pressure action area and the negative pressure action area. Specific details for implementing the invention

[0042] Further objects, features, and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

[0043] Before providing a detailed description of the present invention, it should be understood that the present invention is capable of various modifications and may have various embodiments, and that the examples described below and illustrated in the drawings are not intended to limit the present invention to specific embodiments, but rather include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0044] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0045] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0046] Additionally, terms such as "...part," "...unit," and "...module" described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0047] Furthermore, in the description referring to the attached drawings, identical components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. In describing the present invention, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the present invention, such detailed description is omitted.

[0048] Hereinafter, a negative pressure acting door structure for a positive pressure chamber device according to a preferred embodiment of the present invention and a vertical tower-type positive pressure chamber device including the same will be described in detail with reference to the attached drawings.

[0049] FIG. 4 is a drawing showing a vertical tower-type positive pressure chamber device including a negative pressure-acting door structure for a positive pressure chamber device according to the present invention, FIG. 5 is a drawing showing a vertical tower-type positive pressure chamber device including a negative pressure-acting door structure for a positive pressure chamber device according to the present invention separated, and FIG. 6 is a front view of the negative pressure-acting door structure for a positive pressure chamber device according to the present invention. FIG. 7 is a drawing showing a part of the negative pressure-acting door structure for a positive pressure chamber device according to the present invention, and FIG. 8 is a drawing showing a part of a door frame member included in the negative pressure-acting door structure for a positive pressure chamber device according to the present invention.

[0050] The negative pressure acting door structure according to the present invention is a door structure provided in the entrance / exit portion of a positive pressure chamber device, and as shown in FIGS. 4 to 8, it mainly comprises upper and lower bracket members (100), a door frame member (200), a door member (300), and a door negative pressure acting means (400).

[0051] Specifically, the negative pressure door structure according to the present invention is a door structure provided in the entrance / exit portion of a positive pressure chamber device, and as shown in FIGS. 4 to 8, comprises: an upper and lower bracket member (100) fixedly provided at the upper and lower portions, respectively, of the entrance / exit portion (11) of a positive pressure chamber body (10); a door frame member (200) formed such that the upper and lower portions are fixed to the upper and lower bracket member (100), respectively, and the opening (201) is opened and closed by a door member (300) provided on the front surface; and a door member (300) having the upper and lower portions of one end hinge-coupled to the upper and lower bracket member (100) and rotatably provided on the front surface of the door frame member (200) with the hinge-coupled portion as an axis. and a door negative pressure acting means (400) configured on the door frame member (200) to apply a pressure (i.e., negative pressure or vacuum pressure) lower than the internal pressure (i.e., positive pressure) of the positive pressure chamber body (100) to the door member (300).

[0052] The above upper and lower bracket members (100) are components that are respectively fixedly provided at the upper and lower ends of the entrance / exit part (11) of the positive pressure chamber body (10).

[0053] Specifically, the upper and lower bracket members (100) are formed as brackets or blocks with a cross-section in the shape of an "L", and their vertical portions are fixed to the upper and lower portions of the entrance / exit portion (11) of the positive pressure chamber body (10) through various integration methods.

[0054] In the upper and lower bracket members (100) above, the upper bracket member is mounted and fixed in an "L" shape on the upper part of the entrance / exit section (11) as shown in the drawing, and the lower bracket member is mounted and fixed on the lower part of the entrance / exit section (11) in a shape that is vertically inverted from the upper bracket member.

[0055] A hinge shaft (110) is formed at one end of the upper and lower bracket member (100), specifically at the end of the horizontal part, and is rotatably inserted and mounted into a hinge bore (301) provided at the upper and lower ends of the door member (300).

[0056] The positive pressure chamber body (10) equipped with the upper and lower bracket members (100) is described in detail in the description of the positive pressure chamber device below.

[0057] Furthermore, the door frame member (200) is a component formed such that its upper and lower ends are each fixed to the upper and lower bracket members (100), and it has an opening (201) that is opened and closed by a door member (300) provided on the front.

[0058] The above door frame member (200) is positioned along the edge (border) of the entrance / exit portion (11) of the positive pressure chamber body (10) and is formed as a ring-shaped frame having a predetermined width (width when viewed from the front).

[0059] The above door frame member (200) is preferably formed in a shape corresponding to the entrance / exit portion (11) of the positive pressure chamber body (10). For example, as shown in the drawing, if the entrance / exit portion (11) of the positive pressure chamber body (10) is formed in a square shape, the door frame member (200) is formed in a square shape. If the entrance / exit portion (11) of the positive pressure chamber body (10) is formed in a polygon including a square or a circle, the door frame member (200) may be formed in a ring shape corresponding to that shape.

[0060] A packing member (202) is provided on one side edge of the opening (201) of the door frame member (200), that is, on the side edge of the opening (201) facing the door member (300).

[0061] Here, the packing member (202) is made of an elastic packing member or a corrugated (or velour-type) packing member that can contract inward (toward the chamber body) when negative pressure is applied to the door member (300).

[0062] Since the above door frame member (200) is used in a situation where pressure is applied, such as positive pressure inside the chamber and negative pressure on the door member side, it can be made of a material capable of sufficiently withstanding pressure, for example, stainless steel or aluminum.

[0063] The above door frame member (200) is screw-coupled to the upper and lower bracket members (100) through a bracket fixing screw groove machined therein.

[0064] Next, the door member (300) rotates in a hinge manner to open, close, and seal the entrance / exit portion (11) of the positive pressure chamber body (10). In other words, the door member (300) is a component configured such that the upper and lower portions of one end are hinge-connected to the upper and lower bracket member (100), and the hinge connection portion is pivotably provided on the front of the door frame member (200).

[0065] The door member (300) is formed in a shape corresponding to the shape of the door frame member (200).

[0066] That is, the door member (300) is formed in a shape that can cover the front of the door frame member (200). This allows the sound pressure (vacuum) provided by the door sound pressure acting means (400), which will be described in detail below, to act on the front of the door frame member (200) to ensure airtightness of the opening (201) of the door frame member (200).

[0067] The upper and lower surfaces of one end of the door member (300) are provided with a hinge bore (301) into which a hinge shaft (110) formed at one end of the upper and lower bracket member (100) is rotatably inserted. Here, a hinge shaft separation flange (111) is formed on the outer edge of the hinge shaft (110) so that the upper and lower surfaces of the door member (300) can be separated by a predetermined distance from the opposing surface of the upper and lower bracket member (100) and easily separated.

[0068] The above door member (300) may be made of a material that allows the therapist (or user) inside the positive pressure chamber body (10) to be visually identified.

[0069] For example, the door member (300) may be made of acrylic or polycarbonate material and may be formed to be entirely or partially transparent and / or translucent so that the interior can be observed. Reference numeral 302 is an opening / closing handle.

[0070] Next, the door negative pressure acting means (400) is configured in the door frame member (200) and is formed such that a pressure lower than the internal pressure (i.e., positive pressure) of the positive pressure chamber body (100) (i.e., negative pressure or vacuum pressure) is applied to the door member (300).

[0071] Specifically, the door sound pressure acting means (400) comprises a vacuum acting groove (410) formed with a predetermined width and depth on one side of the door frame member (200), a sound pressure acting passage (or sound pressure pipe connecting part) (420) formed at one or more locations of the vacuum acting groove (410) so that the vacuum pressure of the external vacuum pump acts on the vacuum acting groove (410) connected to the external vacuum pump, and a packing part (431, 432) formed on at least one of the outer and inner sides of the door frame member (200) based on the vacuum acting groove (410) to stably maintain the sound pressure or vacuum pressure applied to the vacuum acting groove (410).

[0072] The above vacuum action groove (410) is formed as a space having a width and depth such that the negative pressure introduced from an external vacuum pump acts sufficiently and stably on the door member (300).

[0073] The above-mentioned negative pressure acting passage (420) can be formed by penetrating in the front-rear direction from the bottom portion of the vacuum acting groove (410) as shown in the drawing, and can be formed on the side wall portion forming the vacuum acting groove (410).

[0074] When the above-mentioned negative pressure action passage (420) is formed to penetrate in the front-rear direction, it is formed to be exposed to the outside so that the vacuum pressure supply pipe of the vacuum pump can be connected at the rear side. In other words, the door frame member (200) is formed with a size such that the rear part of the above-mentioned negative pressure action passage (420) is exposed to the outside.

[0075] And when the above-mentioned negative pressure action passage (420) is formed on the side wall (outer side wall) of the vacuum action groove (410), the negative pressure action passage (420) is extended laterally from the side wall of the vacuum action groove (410) and then extended again to a predetermined depth towards the bottom (rear side), and a negative pressure transmission passage that is perforated from the outer surface of the door frame member (200) is connected to the extended end, and a vacuum pressure supply pipe (metal tube (SUS316 material) of a vacuum pump) is connected to the outer end (end connected to the outer side) of the negative pressure transmission passage.

[0076] In the above-mentioned negative pressure action passage (420), if there is a negative pressure action passage (420) that is not in use, it can be closed through a blind fitting.

[0077] Furthermore, the packing portions (431, 432) include an outer packing portion (431) provided along the outer edge of the door frame member (200) at a location outside (outside in a planar view) of the position where the vacuum working groove (410) is formed, which is partitioned from the vacuum working groove (410), and an inner packing portion (432) provided along the edge of the opening (201) of the door frame member (200) at a location inside (inside in a planar view) of the position where the vacuum working groove (410) is formed, which is partitioned from the vacuum working groove (410).

[0078] The above packing portion (431, 432) may be configured such that a packing member is mounted in the packing groove, and the packing member is made of an elastic packing member or a corrugated (or velour-type) packing member.

[0079] The packing member of the above packing portion (431, 432) may be made of a material that ensures the airtightness of the door member (300) with respect to the door frame member (200) is reliably secured when negative pressure or vacuum pressure is applied to the vacuum action groove portion (410).

[0080] In other words, when the door member (300) is closed, the vacuum action groove (410) is positioned between the outer packing part (431) and the inner packing part (432), and the negative pressure applied to the vacuum action groove (410) is maintained by the outer packing part (431) and the inner packing part (432). At this time, the outer packing part (431) blocks the space between the outside of the chamber and the vacuum action groove (410), and the inner packing part (432) blocks the space between the inside of the chamber and the vacuum action groove (410).

[0081] That is, in the present invention, when the vacuum operating groove (410) is closed (the door member (300) is closed) and the vacuum pump is operated to pressurize the inside of the chamber, the vacuum operating groove (410) is completely isolated from the outside by the inner and outer packing parts (431, 432), and the vacuum operating area portion of the door member (300) is pressed by the external atmospheric pressure (proportional to the degree of vacuum) to ensure airtightness.

[0082] Meanwhile, in the present invention, it is preferable that the area where positive pressure acts and the area where negative pressure (vacuum pressure) acts on the door member (300) are in a ratio of 7.5:1. In other words, it is preferable that the area of ​​the vacuum action groove (410) and the area of ​​the opening (201) of the door frame member (200) are in a ratio of 7.5:1. It was confirmed through experiments described below that this ratio of positive pressure action area and negative pressure action area can ensure the maintenance of positive pressure inside the chamber and stable airtightness of the door member (prevention of opening and closing of the door member).

[0083] Next, a vertical tower-type positive pressure chamber device including a negative pressure acting door structure for a positive pressure chamber device according to the present invention will be described with further reference to FIGS. 9 and 10.

[0084] FIG. 9 is a schematic diagram illustrating the configuration of a vertical tower-type positive pressure chamber device having a negative pressure-acting door structure for a positive pressure chamber device according to the present invention, FIG. 10 is a diagram showing the overall configuration of a vertical tower-type positive pressure chamber device including a negative pressure-acting door structure for a positive pressure chamber device according to the present invention, and FIG. 11 is a diagram showing another embodiment of a positive pressure chamber body provided in a vertical tower-type positive pressure chamber device having a negative pressure-acting door structure for a positive pressure chamber device according to the present invention.

[0085] A vertical tower-type positive pressure chamber device including a negative pressure action door structure for a positive pressure chamber device according to the present invention comprises, as shown in FIGS. 4 to 11, a positive pressure chamber body (10) having an entrance / exit section (11) formed on one side; a negative pressure action door structure provided at the entrance / exit section (11) of the positive pressure chamber body (10); a positive pressure generating means (20) provided on the outside of the positive pressure chamber body (10) and connected to generate positive pressure inside the positive pressure chamber body (10); and a negative pressure generating means (30) provided on the outside of the positive pressure chamber body (10) and configured to introduce negative pressure into the negative pressure action door structure.

[0086] The above positive pressure chamber body (10) can be formed as a rectangular housing as shown in FIG. 11, and considering the environment in which positive pressure is applied inside, it is preferable to provide a reinforcing part (12), preferably a square tubular reinforcing part (12), on the outer surface as shown in FIG. 3 and FIG. 4.

[0087] As the above-mentioned negative pressure door structure has been described previously, a detailed explanation thereof is omitted for the sake of brevity and clarity.

[0088] The above positive pressure generating means (20) may be composed of, for example, a compressor, and the above negative pressure generating means (30) may be composed of a vacuum pump.

[0089] The operation of a vertical tower-type positive pressure chamber device including a negative pressure acting door structure for a positive pressure chamber device according to the present invention, configured as described above, will be explained.

[0090] After opening the door member (300) of the positive pressure chamber body (10) and the user enters, the door member (300) is closed. Then, when the vacuum pump, which is a negative pressure generating means (30), is activated, the air filled in the vacuum action groove (410) of the door frame member (200) passes through the negative pressure action passage (420) and exits to the outside through the pipe connected to the negative pressure action passage (420), and the door member (300) is depressurized to a vacuum state and compressed against the positive pressure chamber body (10) by the pressing force of atmospheric pressure.

[0091] At this time, the vacuum action groove (410) of the door frame member (200) is completely sealed off from the inside and outside by the outer packing part (431) and the inner packing part (432) of the door frame member (200).

[0092] When the pressure of the above vacuum operating groove (410) reaches a certain negative pressure (vacuum level), the operation of the vacuum pump, which is the negative pressure generating means (30), is stopped, and the compressor, which is the positive pressure generating means (20), is operated.

[0093] Due to the compressor, the pressure inside the positive pressure chamber body (10) rises to a positive pressure (above atmospheric pressure), and when the pressure inside the chamber reaches a target value, the compressor stops operating.

[0094] After a certain amount of usage time, the pressure inside the chamber is reduced to about 12 atmospheres (absolute pressure) or less, and the pressure applied to the vacuum action groove (410) of the door member (300) is made equal to atmospheric pressure. After that, the door member (300) can be opened and the user can exit the positive pressure chamber.

[0095] Meanwhile, the inventor of the present invention confirmed through experiments the operational effect of a positive pressure chamber device equipped with a negative pressure door structure according to the present invention.

[0096] FIG. 12 is a photograph of a device fabricated for testing a vertical tower-type positive pressure chamber device according to the present invention, and FIG. 13 is a drawing showing the positive pressure working area and the negative pressure working area.

[0097] The inventor of the present invention manufactured a positive pressure chamber device as shown in FIG. 12, set the pressure inside the chamber to a maximum of 13 atmospheres, and performed a leak test by varying the negative pressure applied to the vacuum working groove (410). The test results are shown in [Table 1] below.

[0098]

[0099] (Unit: Atmospheric pressure)

[0100] As shown in Table 1, until the negative pressure of the vacuum working groove (410) reached 0.5 atmospheres, the door member (300) opened simultaneously with or during the pressurization inside the chamber, so the chamber was not sealed, and the door member (300) opened when the negative pressure of the vacuum working groove (410) was 0.1 atmospheres and the pressure inside the chamber was 1.1 atmospheres or higher.

[0101] Since the scale gauge of the vacuum pump used in the test was of the analog type, it was not possible to accurately distinguish and set vacuum pressure values ​​between 0.1 atm and 0.01 atm, but when the negative pressure of the vacuum working groove (410) was set to 0.01 atm, the internal pressure of the chamber could be increased without difficulty to the set target value (1.3 atm).

[0102] In this test, it was confirmed that the internal pressure of the chamber could only be increased to the set target value (1.3 atm) when the vacuum level of the vacuum action groove was significantly high at 0.01 atm. This is related to the sealing function of the packing section (431, 432), which must completely isolate the vacuum action groove from the outside, and the area of ​​the vacuum action groove where negative pressure acts. The inventor of the present invention confirmed that it is desirable for the area where positive pressure acts and the area where negative pressure (vacuum pressure) acts on the door member (300) to be in a ratio of 7.5:1. In other words, it is desirable for the area of ​​the vacuum action groove (410) and the area of ​​the opening (201) of the door frame member (200) to be in a ratio of 7.5:1. In the experiment, the area of ​​the vacuum action groove (blue in FIG. 13) is 0.013312 m² 2 and the area where positive pressure acts (green in the diagram) is 0.1 m 2 It was determined that it was.

[0103] According to the negative pressure acting door structure for a positive pressure chamber device and the vertical tower-type positive pressure chamber device including the same as described above, negative pressure or vacuum is applied to the door structure itself, which is the opening and closing mechanism of the positive pressure chamber, thereby reliably ensuring the airtightness of the chamber. Additionally, since the door structure can be applied to the vertical tower-type chamber in a hinge rotational manner, there is an advantage in that the positive pressure chamber can be manufactured in a relatively very compact manner.

[0104] In addition, the present invention offers economic advantages by allowing the required degree of negative pressure action (or degree of vacuum action) to be lowered while maintaining the target pressure of the positive pressure chamber through a specific structure of the negative pressure or vacuum action part in the door structure, thereby reducing manufacturing and material costs through the use of a low-capacity vacuum pump, and by enabling compactness so that it can be easily accommodated in small hospitals, and by allowing it to be easily moved and installed at sites where treatment using a positive pressure chamber is required, enabling treatment using the positive pressure chamber to be performed on-site.

[0105] The embodiments described in this specification and the accompanying drawings are merely illustrative of a part of the technical concept included in the present invention. Accordingly, since the embodiments disclosed in this specification are intended to explain, not limit, the technical concept of the present invention, it is obvious that the scope of the technical concept of the present invention is not limited by these embodiments. All variations and specific embodiments that can be easily deduced by a person skilled in the art within the scope of the technical concept included in the specification and drawings of the present invention should be interpreted as being included within the scope of the rights of the present invention. Explanation of the symbols

[0107] 10: Positive pressure chamber body 11: Entrance / Exit 12: Reinforcement part 20: Means of generating positive pressure 30: Means of generating negative pressure 100: Upper and lower bracket members 110: Hinge shaft 111: Separating flange section 200: Door frame member 201: Opening 202: Packing member 300: Door missing 301: Hinge bore 302: Opening / closing handle 400: Door sound pressure acting means 410: Vacuum operating groove 420: Negative pressure acting passage (or negative pressure pipe connection) 431, 432: Packing section

Claims

Claim 1 A door structure provided in the entrance / exit portion of a positive pressure chamber device, comprising: upper and lower bracket members fixed to the upper and lower portions of the entrance / exit portion of the positive pressure chamber body; a door frame member formed with an opening that allows entry and exit, wherein the upper and lower portions are each fixed to the upper and lower bracket members; and a door member rotatably coupled to the upper and lower bracket members with one end as an axis to open and close the opening of the door frame member. A door sound pressure acting means provided on the door frame member and configured to apply sound pressure to the door member; wherein the door sound pressure acting means comprises a vacuum acting groove formed on one surface of the door frame member, a sound pressure acting passage for introducing sound pressure into the vacuum acting groove, an outer packing portion provided along the outer edge of the door frame member based on the vacuum acting groove, and an inner packing portion provided along the inner edge of the door frame member, wherein when the door member is closed, the vacuum acting groove is isolated from the outside and inside of the chamber, respectively, by the outer packing portion and the inner packing portion, and the area of ​​the opening of the door frame member and the area of ​​the vacuum acting groove are formed in a ratio of 7.5:

1. Claim 2 A sound pressure door structure according to claim 1, wherein the upper and lower bracket members include an L-shaped upper bracket member and a lower bracket member that is vertically inverted with respect to the upper bracket member, a hinge shaft is provided on the end side of the horizontal portion of the upper and lower bracket members, and the door member is provided with a hinge bore into which the hinge shaft is rotatably inserted and mounted. Claim 3 A negative pressure door structure according to claim 1, wherein the door frame member is formed as a ring-shaped frame, a packing member is provided at the edge of the opening of the door frame member facing the door member, and the door member is formed in a shape that covers the opening of the door frame member. Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 A vertical tower-type positive pressure chamber device characterized by comprising: a rectangular positive pressure chamber body having an entrance / exit formed therein; a negative pressure acting door structure according to claim 1 provided at the entrance / exit of the positive pressure chamber body; a positive pressure generating means connected to generate positive pressure inside the positive pressure chamber body; and a negative pressure generating means configured to apply negative pressure to the negative pressure acting door structure. Claim 10 A vertical tower-type positive pressure chamber device according to claim 9, characterized in that the positive pressure chamber body is provided with a square tubular reinforcing member on its outer surface.

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