KR102198923B1 - The door equipped with the Gap sealing device - Google Patents

Abstract

The present invention relates to a door provided with a ventilation hole, and more particularly, a fixed structure that is formed in a square pipe shape and is mutually bonded to the upper and lower, left and right edge surfaces of the door 30 or is installed in a sealed state at both ends. Frame 35; Through-holes (36, 42) having a predetermined size extending through the outer surface of the fixing frame (35) or the outer surface of the door fixing frame (40) facing the fixing frame (35) in the longitudinal direction; The through hole 36 is inserted and installed inside the fixing frame 35 on which the through holes 36 and 42 are formed or inside the door fixing frame 40 by the air pressure inside the fixing frame 35 or the door fixing frame 40. , A ventilation prevention hole 50 configured to block the inflow of outside air by being in close contact with the outer surface of the fixing frame 35 or the outer surface of the door fixing frame 40 by partially protruding to the outside through 42; Through-holes (37, 43) formed through one side of the fixing frame 35 or one side of the door fixing frame 40 so as to force air into the fixing frame 35 or the inside of the door fixing frame 40 ; An air inlet 60 that is fitted into the through holes 37 and 43 and configured to force air into the inside of the fixing frame 35 or the door fixing frame 40; consists of a configuration provided. .

Description

The door equipped with the Gap sealing device}

The present invention relates to a door provided with a ventilation hole, and more particularly, formed between the door and the door fixing frame by being inflated by internal air pressure on the entrance door or the door fixing frame supporting the door composed of fire doors such as common houses or shopping malls. It relates to a door provided with a ventilation hole configured to block the inflow of outside air by blocking the gap.

In general, fire doors made of metal are installed at entrances to apartment houses or shopping centers, and a number of windows are installed not only in houses but also in general shopping centers or offices to secure an outside view right from the inside.

Although the present invention is applicable to all kinds of doors used in our daily life, that is, all kinds of doors including windows installed for ventilation as well as entrance (in the present invention, it is collectively referred to as'door' for clear meaning). , In the present invention, it will be described limited to the fire door used as the front door for an apartment house that is most easily encountered to aid understanding of the invention.

In addition, the meaning of the door used in the present invention is used to include not only the door but also the door fixing frame installed together with the door to fix and support the door.

In general, a door used for a fire door is made of metal so as to block the propagation of fire in case of a fire, and an airtight structure of various shapes and structures is provided on the door side or the door frame to maintain airtightness between the door and the door frame.

FIG. 1 shows an excerpt of a door 10 used as a fire door in a conventional general embodiment and a door fixing frame 20 for fixing and supporting the door, and FIGS. 2 and 3 show the door 10 in a closed state. ) And the structure of the gap between the door fixing frame 20 is shown in a cross-sectional view.

As shown in FIG. 1, the door 10 and the door fixing frame 20 for fire doors that are generally used are made of metal to ensure fire resistance, impact resistance, and durability, and open only to either the interior or the exterior. It is made in the form of a sliding door.

The door 10 made of an opening and closing structure has one end hinged to the door fixing frame 20, has a structure in which the opposite side is opened and closed based on the hinge fixing part 15, and handles 17 on the inner and outer sides of one end to be opened and closed. ) Is provided, and an insulating material 14 of a certain thickness is installed inside.

2 and 3 respectively show a top cross-sectional view and one side cross-sectional view of the door 10 in a closed state according to the conventional exemplary embodiment described above.

As shown in the top cross-sectional view of Fig. 2, even when the door 10 is in a closed state, a predetermined gap C is formed between the left and right sides of the door 10 and the door fixing frames 20 on both sides. Outside air can be introduced into the room with (C).

In addition, as shown in the side cross-sectional view shown in FIG. 3, a certain gap C is also formed between the upper and lower sides of the door 10 and the door fixing frame 20 so that outside air is introduced into the interior.

The gap (C) formed between the door 10 and the door fixing frame 20 is the mounting of the hinge fixing part 15 for fixing the door 10 to the door fixing frame 20 and the handle 17 which is a door locking means. This may be caused by installing an accessory device that is installed on one side of the door 10 and fixes the door 10 to the door fixing frame 20.

The gap (C) formed between the door 10 and the door fixing frame 20 may function as an indoor ventilation, but when the outside weather is bad, for example, when the wind blows or the temperature is low, external dust may In addition, cold air from outside flows into the room, which deteriorates the indoor air quality or lowers the indoor temperature.

In addition, when a fire occurs indoors, the toxic gas generated during the fire escapes to the outside and flows into other houses, stores, and offices, causing damage as well as casualties. It can also cause a larger spread.

Therefore, many attempts have been made in the prior art to reduce the gap (C) formed between the door 10 and the door fixing frame 20, as an example, to block the inflow of wind through the gap by applying a Munpoong paper to the gap of the door. The method of doing was also used.

However, since Munpoongji is not good in appearance, it is easily contaminated after attachment, and is easily corroded or damaged, so there is an inconvenience that it must be replaced frequently.

In order to solve the conventional shortcomings of the use of Munpoongji, the'wind inflow prevention hole in the door gap' was devised in Korean Utility Model Announcement No.

The conventionally constructed'wind inflow prevention hole in the door gap' inserts a body with a cross-section of a C-shaped cross-section above or below the door, and inserts a rubber plate into the outer surface of the main body so that the rubber plate contacts the bottom or upper surface of the door frame to allow the inflow of outside air. Was to be blocked.

However, this structure can be applied only when there is a gap between the door and the door frame that is large enough to fit the body and the rubber plate, and when the gap is small, there is a problem that it is difficult to use.

In addition, when the main body is inserted into the upper and lower ends of the door, when the door is closed, the door may not close due to the thickness of the main body, or the rim of the door that is in close contact with the door frame may not closely adhere to the door frame.

As another conventional embodiment, Korean Utility Model Registration No. 20-0300252, Utility Model Registration No. 200-0288721, and Patent Registration No. 10-1027310 have been known.

However, in the case of the above-described conventional devises and inventions, the configuration is complicated and the installation structure is complicated because it is configured to block the gap of the door by attaching an additional configuration to the door or changing the structure such as the shape of the door frame. It had several shortcomings.

-Korean Utility Model Announcement No. 1997-3403 (Name of the design: wind inflow prevention port in the door gap) -Korean Utility Model Registration No. 20-0300252 (Name of the draft: the front door to prevent drafts and protect hands) -Korean Utility Model Registration No. 20-0288721 (name of the draft: entrance gap prevention port) -Korean Patent Registration No. 10-1027310 (Name of invention: Multifunctional sliding gap prevention device for sliding doors)

The present invention was conceived to solve the disadvantages of the conventional door and the gap preventing hole of the door described above, and the structure of the door and the fixing frame is simple, without significantly changing the structure, and the door is not easily identified from the outside. The purpose of this is to provide a door equipped with a ventilation hole that does not deteriorate the appearance of the product.

In addition, another object of the present invention is to provide a door provided with a ventilation hole to increase the usability so as to be applicable to various types of doors regardless of the shape or structure of the door.

In order to achieve the above object, the door provided with the ventilation hole according to the present invention has a square pipe shape and is installed in a structure that is mutually bonded to the rim of the door or is installed with both ends sealed, and the A through hole of a certain size that penetrates long in the longitudinal direction on the outer surface of the fixing frame or the inner surface of the door fixing frame opposite to the fixing frame, and a fixed frame inserted into the inside of the fixing frame or the door fixing frame in which the through hole is formed Alternatively, a part of the door fixing frame protrudes to the outside through the through hole due to the internal air pressure of the door fixing frame and is in close contact with the outer surface of the fixing frame or the inner surface of the door fixing frame to block the inflow of outside air, and the inside of the fixing frame or A through hole formed through one side of the fixing frame or one side of the door fixing frame so that air can be forcibly introduced into the inside of the door fixing frame, and a through hole that is inserted into the through hole to force air into the inside of the fixing frame or the inside of the door fixing frame. An air inlet configured to inflow; is provided, wherein the air inlet is made of a rubber material or latex material having a certain elasticity, and after injecting air into the air inlet hole formed in the center, the air inlet is sealed by the self-elasticity of the air inlet. It consists of a structure.

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In addition, in another embodiment of the air inlet, the air inlet is made of a rubber material or latex material having a certain elasticity, and a body fitted to the through hole, and installed through the central portion of the body, one end of the outer surface of the door Alternatively, an air injection pipe having a certain diameter that is installed to protrude to the outer surface of the door fixing frame, and when air is injected through the air injection pipe, it is tilted to the inside of the fixing frame or the door fixing frame, and air is passed inside the fixing frame or the door fixing frame. In the filled state, a sealing port provided at the inner end of the air inlet pipe in close contact with the inner end portion of the air inlet pipe to prevent the air filled in the fixed frame or door fixing frame from leaking out to the outside, and the fixed frame or door fixing frame. It consists of a configuration provided with a sealing cap coupled to the distal end of the air injection pipe protruding outward.

In the door provided with the ventilation prevention hole according to the present invention described above, the ventilation prevention hole swells out of the through hole by the air pressure filled in the fixing frame or the door fixing frame in the door or door fixing frame, and the rim surface of the door or the inner surface of the door fixing frame It is in close contact with the door and blocks the inflow of outside air into the interior through the gap between the door and the door fixing frame, thereby maintaining the indoor temperature and blocking the inflow of fine dust, thereby maintaining a pleasant indoor environment.

In particular, the present invention is made to be easily configured on a door or a door fixing frame, so that installation and manufacturing thereof are simple, and it can be applied to various types of doors.

1 is an installation state diagram of a door according to a conventional embodiment,
2 and 3 are a plan cross-sectional view and a side cross-sectional view of a door in a closed state in FIG. 1;
4 and 5 are diagrams of a door fixing frame and a state in which ventilation holes are installed on the door side, respectively, in a door provided with a ventilation hole according to an embodiment of the present invention;
6 and 7 are separate state diagrams of a door and a door fixing frame in a door provided with a ventilation hole according to an embodiment of the present invention;
8 and 9 are a plan sectional view and a side sectional view of a door provided with a ventilation hole according to an embodiment of the present invention;
10 is a modified embodiment of an air inlet applied to a door provided with a ventilation hole according to an embodiment of the present invention.

In the door provided with a ventilation hole according to the present invention, a through hole is formed in the longitudinal direction of the fixing frame or the door fixing frame on one side of the fixing frame constituting the door or the inner surface of the door fixing frame for fixing and supporting the door, and the through hole is A ventilation prevention hole made of a flexible material is inserted into the formed fixing frame or door fixing frame, and air is injected into the inside of the fixed frame or door fixing frame where the ventilation prevention hole is inserted, and the ventilation prevention hole is formed through the through hole by the pressure of the air. It is configured to protrude to block the gap between the door and the door fixing frame, so that it is configured to block outside air flowing into the gap of the door.

To this end, the present invention has a fixed frame that is formed in a shape of a square pipe and is installed in a structure interconnected to the rim of the door or in a state where both ends are sealed, and the inner side of the door fixing frame facing the fixed frame or one side of the fixed frame. A through-hole of a certain size is formed long through the side in the longitudinal direction, and a part through the through-hole is inserted and installed inside the fixing frame in which the through-hole is formed or inside the door fixing frame. Ventilation prevention holes protruding to the outside and in close contact with the outer surface of the fixing frame or the inner surface of the door fixing frame to block the inflow of outside air, and the fixing frame to force air into the inside of the fixing frame or the inside of the door fixing frame It consists of a configuration comprising a through hole formed through one side of the door or one side of the door fixing frame, and an air inlet that is fitted and coupled to the through hole to forcibly introduce air into the inside of the fixing frame or the door fixing frame. .

Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

The door provided with the ventilation hole according to the present invention is used in a comprehensive sense including not only the door itself, but also a door fixing frame integrally installed with the door.

4 and 5 are an embodiment of a door in which a ventilation hole is installed according to an embodiment of the present invention, and FIG. 4 is a diagram showing a state in which the ventilation hole is installed on the door fixing frame 40, and FIG. It shows a state in which the prevention device is installed.

As shown in Figures 4 and 5, the present invention can block the gap formed between the door 30 and the door fixing frame 40 by installing ventilation holes in each of the door 30 and the door fixing frame 40. Is configured to be

That is, the ventilation hole according to the present invention is for blocking a gap formed between the inner surface of the door fixing frame 40 and the side surface of the door 30 when the door 30 fixedly installed on the door fixing frame 40 is closed. , It may be installed on either or both of the outer surface of the slope edge of the door 30 and the outer surface of the door fixing frame 40 opposite to the outer surface of the slope edge of the door 30, but the outside of the door 30 It is preferable that it is installed only on one of the fixing frame or the door fixing frame constituting the rim.

Since the ventilation hole is installed inside the fixing frame and the door fixing frame installed inside the door, Figs. 4 and 5 show only the state in which the air inlet 60 is installed on one side of the door fixing frame and the fixing frame where the ventilation prevention hole is installed. Has been.

Accordingly, a detailed description will be given below of a state in which the ventilation holes, which are features according to the present invention, are installed on the door 30 side and the door fixing frame 40, respectively, with reference to FIGS. 6 and 7.

As shown in Fig. 6, the door 30 used as a fire door includes an insulating material 14 installed with a predetermined thickness between the metal outer plates 43 and 34 on both sides, the metal outer plates 32 and 34 on both sides, and the insulating material It is composed of a plurality of fixing frames 35 made of a rectangular channel (□) shape that is coupled between the outer plates 32 and 34 on both sides while surrounding the rim of (14).

Among the configurations of the door 30 having such a configuration, the ventilation prevention hole 50, which is a characteristic part of the present invention, is installed on the fixing frame 35 having a rectangular channel shape constituting the outer rim of the door 30.

That is, as shown in Figure 6, there are four square channel-shaped fixing frames 35 are installed on the upper and lower, left and right edges of the door 30, one side of each fixing frame 35, preferably a door A rectangular through hole 36 is formed through the outer surface facing the fixing frame in the longitudinal direction of the fixing frame 35.

Ventilation prevention holes 50 made of elastic material are inserted and installed inside each through hole 36 to ventilate the edge of the through hole 36 while a part of it protrudes outward through the through hole 36 Consists of a structure in which the prevention device 50 is fixed, and the fixing frame 35 has a structure in which not only the slopes but also the left and right ends are sealed, and a certain closed space is formed therein, and the fixing frame 35 One or more through holes 37 for injecting air into the fixed frame 35 are formed on one side of the fixed frame 35, and an air inlet 60 is inserted into the through hole 37.

Of course, since the fixing frame 35 is inserted and installed between the outer plates 32 and 34 of the door 30, the outer plate 34 on one side of the door is located at a position corresponding to the through hole 37 of the fixing frame 35. A through hole 38 is installed, and an air inlet 60 fitted through the through hole 38 passes to the through hole 37 of the fixing frame 35 and is fixedly installed.

Therefore, when forcibly injecting air into the inside of the fixed frame 35 through the air inlet 60 exposed to one side of the door 30 to which the fixed frame 35 is assembled, the ventilation hole 50 made of elastic material ) Is protruded while being swelled to the outside of the through hole 36, and the protruding part is in close contact with the outer surface of the door fixing frame, thereby blocking the gap between the door 30 and the door fixing frame 40.

The air inlet 60 is made of elastic rubber material or silicone material, and the air inlet 62 is penetrated in the center of the sphere, and the air injector needle of the air injector (not shown) is inserted into the air inlet 62 When the injection is performed and the air injection needle is removed after injecting air, the air injection hole 62 is blocked by its own elasticity and air discharge is blocked.

In addition, the ventilation prevention hole 50 is preferably made of a configuration having a plurality of protrusions 55 on the surface so as to protrude outward from the through hole to effectively block air intake when in close contact with the outer surface of the door fixing frame. It is more preferable that the protrusion 55 is formed to be elongated in the longitudinal direction of the ventilation prevention hole 50.

7 is an embodiment in which the ventilation hole 50 is installed in the door fixing frame 40 to which the door 30 is fixed, and the door fixing frame 40 having a cross section of a rectangular channel structure is assembled in a square shape so as to have a mutually perpendicular structure. , Each of the door fixing frame 40 is made of a hollow shape in which the inside is empty and has a structure with both ends sealed.

A through hole 42 is formed in a longitudinal direction on one side of the door fixing frame 40 of the rectangular channel made of such a hollow structure, preferably an outer surface corresponding to the rim of the door 30, and the through hole 42 ) A ventilation hole 50 made of elastic material is inserted into the inside, and the ventilation hole 50 inserted into the through hole 42 is a certain part through hole by the air pressure filled inside the door fixing frame 40 (42) All sides of the ventilation hole 50 are adhesively fixed to the edge of the through hole 42 so as to protrude outward.

In addition, one side of the door fixing frame 40 is provided with at least one air inlet 60 through which air can be blown into the hollow door fixing frame 40, and the door fixing frame ( 40) As air is injected into the interior, the ventilation prevention hole 50 made of an elastic material protrudes to the outside of the through hole 42 at a certain height to be in close contact with the outer rim of the door 30 so that the rim of the door 30 and the It is configured to block a gap between the door fixing frame 40 to block outside air from flowing into the room.

The air inlet 60 may be composed of a plurality as necessary, but the length of the door fixing frame 40 is not long, so there is no great difficulty in injecting air into one air inlet 60, so it is necessary to install several air inlets. There is no need.

In this way, a through hole 42 is formed on one side of the four door fixing frames 40 constituting a rectangular frame, and a ventilation hole 50 made of an elastic material is inserted through the through hole 42 After that, by attaching and fixing the slope of the ventilation hole 50 on the edge of the through hole 42 to prevent a gap between the ventilation hole 50 and the through hole 42, air into the door fixing frame 40 When injecting, the ventilation prevention hole 50 can protrude to a certain height outside the through hole 42 by the pressure of the injected air.

In order to install the air inlet 60, a through hole 43 for installing an air inlet is installed in the door fixing frame 40.

In addition, the ventilation prevention hole 50 installed in the door fixing frame 40 also has a plurality of protrusions 55 formed on the outer surface thereof in the longitudinal direction of the door fixing frame 40 so that the air inside the door fixing frame 40 When the ventilation hole 50 is expanded while being injected, the tip of the protrusion 55 is in close contact with the rim of the door 30 to effectively block the inflow of outside air.

On the other hand, FIGS. 8 and 9 show cross-sections of the door 30 in a closed state while the ventilation prevention hole 50 is provided in the door fixing frame 40.

That is, FIG. 8 shows a flat sectional view of the door 30 vertically installed inside the door fixing frame 40 in a closed state, and FIG. 9 shows a vertical side sectional view of the door 30 in a closed state, respectively.

As shown in Figure 8, even if the door 30 located inside the door fixing frame 40 is closed in close contact with the door fixing frame 40, between the bottom of the upper door fixing frame 40 and the upper edge of the door 30 And a predetermined gap (C) is formed between the upper surface of the lower door fixing frame 40 and the bottom edge of the door 30.

In this way, a ventilation hole 50 is provided in the door fixing frame 40 to block the gap C formed between the door 30 and the door fixing frame 40, and formed on one side of the door fixing frame 40. When an air injection device (not shown) is connected to the air inlet 62 to inject air into the door fixing frame 40, the ventilation prevention hole 50 made of a flexible material installed in the through hole is outside the through hole, that is, As the space of the gap (C) formed on the upper or lower part of the door (30) swells up, it is in close contact with the upper and lower surfaces of the door (30) to block the entry of air, so that outside air is introduced or internal air (內氣) To prevent escaping to the outside.

In addition, as shown in the top cross-sectional view of FIG. 9, the ventilation prevention hole 50 swells up and blocks the gap C formed between the left and right sides of the door 30 and the left and right door fixing frames 40.

That is, even if the door 30 is closed, a predetermined gap is formed between the left and right edge surfaces of the door 30 and the outer surface of the left and right door fixing frames 40, and the gap is provided in the left and right door fixing frames 40. The ventilation prevention hole 50 is partially swelled through the through hole by the air pressure introduced into the door fixing frame, thereby blocking the gap formed between the door and the door fixing frame.

As described above, the air inlet 60 is installed on one side of the door fixing frame 40 on both left and right sides, and when air is injected into the door fixing frame 40 through the air inlet 60, the elastic material installed in the through hole As the ventilation prevention hole 50 swells to the outside of the through hole, it inflates as much as the gap formed between the rim of the door 30 and blocks the gap between the door and the door fixing frame. Alternatively, a gap formed in the upper and lower surfaces of the door may block the inflow of outside air into the interior or discharge of inside air to the outside.

On the other hand, FIG. 10 shows another embodiment of the air inlet 60 that is fitted into the through hole formed in the fixing frame of the door 30 or the door fixing frame 40.

As described above, the air inlet 60 according to an embodiment of the present invention has a body 61 made of a rubber material or latex material having a uniform elasticity as a whole, and air is injected to penetrate the central portion of the body 61 The hole 62 is formed so that the air injection needle of the air injection device is inserted into the air injection hole to inject air, and when the air injection needle inserted in the air injection hole 62 is removed after air injection, an elastic material The main body 61 of the body 61 is self-extensible, and the air injection hole 62 is compressed and sealed to prevent the air filled in the fixing frame or the door fixing frame from escaping to the outside.

Of course, the air filled in the fixing frame or the door fixing frame can gradually escape through the air injection hole of the air inlet as time passes, but if the air is released and the ventilation hole that has swollen outside the through hole contracts and a gap is formed, When air is injected through the air inlet again, the ventilated hole that has been contracted swells up to block the gap.

The air inlet of another embodiment capable of solving the disadvantages of the air inlet according to this embodiment is shown in a cross-sectional view in FIG. 10.

In the air inlet 60 of another embodiment shown in FIG. 10, the main body 61 is made of a rubber material or latex material having a certain elasticity, and an air injection hole 62 having a certain diameter in the center of the main body 61 The air injection pipe 63 is installed through the air injection pipe 63, and when air is injected through the air injection pipe 63, it is tilted toward the inside of the door frame or door fixing frame, and when air injection is completed, the air pressure filled with air inside the door frame or door fixing frame The air inlet 65 is in close contact with the inner end portion of the air inlet pipe 63 and is rotatable at the inner end portion of the air inlet pipe 63 so as to block the outflow of the air filled in the door frame or the door fixing frame to the outside. Consists of an installed configuration.

In addition, a screw-type fastening part 64 is provided at the distal end of the air injection pipe 63 protruding to the outside of the door frame or the door fixing frame, and the sealing cap 66 is coupled to the fastening part 64 to prevent air It is configured to block the introduction of foreign substances into the interior of the injection pipe (63).

As described above, the ventilation prevention hole 50 according to the present invention is provided on the outer surface of the fixing frame 35 or the door fixing frame 40 constituting the slope side of the door 30 to fix the frame through the air inlet. Alternatively, as air is forcibly injected into the interior of the door fixing frame, it expands to the outside of the through hole, thereby blocking the gap between the door and the door fixing frame.

The door provided with the ventilation hole according to the present invention is simple to process and install when manufacturing the door and the door fixing frame, and does not require many parts, so it does not significantly increase the manufacturing cost, thereby increasing economical practicality, and also fixing the door. It is configured to close the gap through the expansion of the ventilation hole by the pressure of the air filled inside the frame or the inside of the door fixing frame, so that the blocking efficiency of the gap can be increased.

10: door 15: hinge government
17: handle 20: door fixing frame
30: door 32, 34: outer plate
35: fixed frame 36: through hole
37,38: through hole
40: door fixing frame 42: through hole
43: through hole
50: ventilation opening 55: protrusion
60,70: air inlet 61,71: main body
62: air injection hole 72: air injection pipe
74: sealing port 75: sealing cap

Claims (4)

delete delete A fixed frame 35 formed in the shape of a square pipe and installed in a structure that is mutually bonded to the upper and lower, left and right edge surfaces of the door 30 or installed with both ends sealed, and an outer surface or a fixed frame of the fixed frame 35 A through hole (36, 42) having a predetermined size that penetrates long in the longitudinal direction on the outer surface of the door fixing frame (40) opposite to (35), and the fixing frame (35) in which the through hole (36, 42) is formed. The fixed frame 35 is inserted and installed inside or inside the door fixing frame 40 and partially protrudes to the outside through the through holes 36 and 42 by the internal air pressure of the fixing frame 35 or the door fixing frame 40. Ventilation prevention hole 50 configured to be in close contact with the outer surface of the outer surface of the door fixing frame 40 to block the inflow of outside air, and air to the inside of the fixing frame 35 or the inside of the door fixing frame 40 Through holes 37 and 43 formed through one side of the fixing frame 35 or one side of the door fixing frame 40 so as to be forcibly introduced, and fitted into the through holes 37 and 43, the fixing frame ( In the door provided with a ventilation hole provided with; an air inlet 60 configured to force air into the inside of 35) or the inside of the door fixing frame 40,
The air inlet 60 is formed of a body 61 made of a rubber material or latex material having a certain elasticity, and is formed through the central portion of the main body 61 so that the air injection needle of the air injection device is inserted. 62) is formed and when the air injection needle is removed after injecting air through the air injection hole 62, the air injection hole 62 is sealed due to the self-elasticity of the body 61, and the interior of the fixing frame or the door fixing frame A door provided with a ventilation hole, characterized in that configured to prevent the air filled in from escaping. A fixed frame 35 formed in the shape of a square pipe and installed in a structure that is mutually bonded to the upper and lower, left and right edge surfaces of the door 30 or installed with both ends sealed, and an outer surface or a fixed frame of the fixed frame 35 A through hole (36, 42) having a predetermined size that penetrates long in the longitudinal direction on the outer surface of the door fixing frame (40) opposite to (35), and the fixing frame (35) in which the through hole (36, 42) is formed. The fixed frame 35 is inserted and installed inside or inside the door fixing frame 40 and partially protrudes to the outside through the through holes 36 and 42 by the internal air pressure of the fixing frame 35 or the door fixing frame 40. Ventilation prevention hole 50 configured to be in close contact with the outer surface of the outer surface of the door fixing frame 40 to block the inflow of outside air, and air to the inside of the fixing frame 35 or the inside of the door fixing frame 40 Through holes 37 and 43 formed through one side of the fixing frame 35 or one side of the door fixing frame 40 so as to be forcibly introduced, and fitted into the through holes 37 and 43, the fixing frame ( In the door provided with a ventilation hole provided with; an air inlet 60 configured to force air into the inside of 35) or the inside of the door fixing frame 40,
The air inlet 60 penetrates the main body 61 made of a rubber material or latex material having a certain elasticity, and one end protrudes to the outer surface of the door or the outer surface of the door fixing frame for a certain length. Air injection pipe 63 having a certain diameter to be installed, and when air is injected into the air injection pipe 63, it is tilted toward the inside of the fixing frame or door fixing frame, and air is injected when the inside of the fixing frame or door fixing frame is filled with air. A sealing port provided at the inner end of the air injection pipe 63 in close contact with the inner end of the pipe 63 to prevent the air filled in the fixing frame 35 or the door fixing frame 40 from leaking to the outside ( 65), and a sealing cap 66 coupled to the distal end of the air inlet tube 63 protruding outward from the fixing frame 35 or the door fixing frame 40. The door is equipped with.

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