WO2018080062A1

WO2018080062A1 - Stopper for fixing fire door

Info

Publication number: WO2018080062A1
Application number: PCT/KR2017/011303
Authority: WO
Inventors: 탁우찬
Original assignee: 탁우찬
Priority date: 2015-12-23
Filing date: 2017-10-13
Publication date: 2018-05-03
Also published as: KR200487136Y1; KR20170002374U; KR20170002375U

Abstract

A stopper for fixing a fire door is disclosed. The purpose of the present invention is to provide a stopper for fixing a fire door, which has an installation structure improved to ensure accurate and stable constructability with simple work only, and in a state where a fire door is closed due to the occurrence of a fire, allows the fire door to be stably and firmly maintained in the closed state, even when wind pressure, that is, expansion pressure caused by expansion of high-temperature heat and air, acts vertically on the fire door in the fire.

Description

Fixed stopper for fire door

The present invention relates to a fixed stopper for a fire door, which is the door of the smoke control area, and more particularly, to simplify the structure to improve workability, and the fire door is pushed out by the pressure in the fire generating area in a state where the fire door is closed due to the fire. It relates to a closed holding stopper for fire doors that can be stably suppressed.

In general, apartment houses or large buildings are equipped with smoke control systems, which prevent the spread of fire in the event of a fire, not only to ensure safety in evacuation, to prevent loss due to smoke, but also to secure a clock for extinguishing activities and toxic gases. Refers to a facility for discharging.

In particular, as the number of high-rise apartments and large buildings increase, the number of fire-generating elements increases. If the fire and smoke cannot be prevented from spreading, people living in high-rises may be suffocated by smoke or suffocation. As it causes a lot of human life and property damage, it is important that the fire door acts as a door as well as partitioning the interior space.

The fire door serves to prevent people from swelling and to prevent fire from moving in a fire area in which a smoke control facility is installed. Typically, when a smoke is detected by a smoke detector, the door closer is closed. It is configured to operate and close immediately.

In other words, the firefighting doors are regulated to have a structure in which fire doors are always kept closed or automatically closed due to the occurrence of smoke or temperature increase due to fire. For this purpose, fire doors must be kept closed at all times. As it causes inconvenience to the people, the door closer is installed so that the door is normally kept open and the fire is automatically closed.

However, in case of fire, excessive expansion pressure is applied to the fire door as the temperature and heat in the fire zone rapidly rise. In this case, the fire door is opened and closed by a hinge and a door closer. There was an open lung.

In other words, if a sudden rise in temperature and expansion pressure due to heat act on the fire door, the fire door with the case structure is opened without maintaining a closed state unless it is in a locked state. This could cause problems with the spread of toxic gases and flames generated in the ventilation area.

In order to solve this problem, conventionally, the handle side of the case-type fire door is provided with a hook to be pulled out in conjunction with the rotation of the handle, and a hook groove into which the latch is inserted into the door frame corresponding to the door frame is formed in the closed state. Although the fire door is configured not to open to external force or wind, there is a problem that it is difficult to maintain a stable closing force in the event of a fire with only the handle having the latch.

In other words, in case of a fire in a building, it proceeds up to 800 degrees within 5 minutes. In this process, not only a large amount of toxic gas is generated, but also the air in the fire space rapidly expands to generate a wind pressure. Concentrates on fire doors. At this time, the fire door should be kept closed by the handle latch only. However, since the latch has a closing force that can withstand the wind or the external force of a person, if the external force, that is, the wind pressure, the expansion pressure due to the fire, is applied. There was a serious closure that easily opened.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to maintain a stable closed state even if the wind pressure acting as the expansion pressure due to the fire in the fire door is closed state For fire doors that can increase the reliability of the product while preventing damages caused by the malfunction of the fire doors, and increase the degree of freedom for economic production and installation by enabling simple application and general application to fire doors of various specifications. For the purpose of providing a fixed stopper

A fixed stopper for a fire door according to a preferred embodiment of the present invention for realizing the above object is a door frame formed by bending a steel plate and a fire door formed by bending a steel plate by being rotatably provided on the door frame. In the fixed stopper for the fire door is installed to prevent the fire door is closed by the wind pressure when the fire occurs, respectively, the end is fixed to one side of the iron plate rim of the iron plate of the door frame or fire door A screw thread of a length member formed by forming a spiral on the periphery and an outer surface of a drill blade or a pointed tip to form a straight screw of a metal material having an expanded diameter on one side of the screw portion; The direct connection screw is fixed to the steel plate on which the direct connection screw is installed, and a through hole through which a screw part is inserted is formed at the center thereof, and one side edge forms a seating groove part into which the head is inserted and is seated. A fixing pin made of a pillar-shaped metal material having a flat part which is processed to be in flat surface contact with one surface of the iron plate to be installed; The fixing pin is inserted into the receiving space without interference when the fire door is rotated by being fixed by being inserted into an interference fit formed on one side of the steel plate rim of the remaining fire plate or the door frame corresponding to the fixing pin. The thickness of the steel plate formed with a cup shape with one side open to separate the gasket flange portion having a diameter of the inlet side is bent outwardly and the installation hole is formed on one side of the outer side of the rim. It is characterized in that it comprises a; a pin push prevention tool made of a metal material having a plurality of engaging portions formed by protruding by pressure molding in the outward direction at intervals corresponding to the.

In one embodiment, the door frame is formed by bending the iron plate and the door frame is rotatably provided to the door frame is installed in each of the fire door by bending the iron plate to prevent the closed fire door is pushed out by the wind pressure in the event of a fire A fixed stopper for a fire door, wherein the end portion is fixed to one side of the edge of the door frame, and a threaded portion of a length member formed by forming a spiral on the outer surface and a perforated portion formed in the form of a drill blade or a pointed tip to form a groove. Direct screw having a diameter of one side of the screw portion made of a metal material consisting of a head; The through-hole is formed at the center of the screw is inserted into the door frame in the state of being assembled to the direct screw, the one side of the frame is formed in the seat groove is inserted into the head is inserted into the other side of the door frame on the iron plate A fixing pin made of a pillar-shaped metal material which forms a flat part which is processed to be in surface contact with the iron plate of the flat plate; The cup is fixed to the installation hole formed on one side of the rim of the fire door corresponding to the fixing pin by the interference fit, the cup is open on one side so that the fixing pin is inserted into or separated into the receiving space without interference during the rotation of the fire door It has a shape, the inlet edge portion is bent to the outside to form a gasket flange having a diameter extended to the installation hole and the outer surface of one side of the edge to the thickness corresponding to the thickness of the fire door steel plate formed with the installation hole It is characterized in that it comprises a; pin push-proof prevention device made of a metal material having a plurality of engaging portions formed by protruding by pressing molding in the outward direction.

As a preferred feature of the present invention, the fixing pin is provided in a cylindrical shape having a diameter of 9 ~ 12mm, the pin pusher is provided to have an internal diameter of 18 ~ 24mm.

As another preferable feature of the present invention, the pin pusher is formed on the outer surface of the threaded portion formed by forming a screw thread to be screwed into the installation hole, the inner bottom surface of the screw to apply a tightening or loosening force with a screw driver The cross groove is formed.

As another preferred feature of the present invention, the pin pusher is formed on the outer surface of the threaded portion formed by forming a screw thread to be screwed into the installation hole, the inner bottom surface is inserted into a multi-rod inserted tightening or loosening force The socket portion formed by forming a groove of a polygon to apply is to protrude downward.

The fixed stopper for the fire door according to the present invention has a wind pressure that acts perpendicularly to the fire door due to the fire in the state in which the fire door is closed, while not affecting the opening and closing in the direction in which the fire door rotates. It is expected to have a useful effect that can greatly increase the reliability of closing the fire door by applying the expansion pressure due to the expansion of heat and air to maintain a stable and stable closed state.

In addition, the fixed stopper for the fire door of the present invention can not only maintain the closed state in the state in which the fire door is closed even if the door closer is damaged or malfunction, and the structure is simple and economical production and distribution is possible. Regardless of the change of the specification or shape of the fire door, it is possible to construct a general purpose, so there is a high degree of freedom in construction.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification should not be interpreted in the ordinary and dictionary sense, and the principle that the inventor can appropriately define the concept of terms in order to explain his invention in the best way. On the basis of this, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a perspective view for explaining the configuration of a fixed stopper for a fire door according to the present invention,

2 is a sectional view showing the main parts of an installation state according to a first embodiment of a fixed stopper for a fire door according to the present invention;

3 is a schematic view for explaining the mounting position of the fire door fixing stopper according to the present invention,

4 is a cross-sectional view illustrating main parts of an application state of an installation state in accordance with another embodiment of a fixed stopper for a fire door according to the present invention;

5 to 8 is a view showing a second embodiment of the fixed stopper for the fire door according to the present invention.

9 to 11 is a view showing a third embodiment of the fixed stopper for the fire door according to the present invention,

DESCRIPTION OF SYMBOLS 1: Fixed stopper for fire door 3 Fire door 3a: Fire door steel plate

3h: mounting hole 5: door frame 5a: door frame steel plate

10 direct connection screw 11 punched portion 13 threaded portion

15: head 20: fixing pin 21: through hole

23: mounting groove 25: flat portion 30: pin pusher

31: gasket flange portion 33: locking portion 35: receiving space

37 screw cross recess 38 socket portion 39 screw

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the embodiment of the present invention. However, the present invention is not intended to be limited to the specific embodiments, and it should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. The terms "comprise" or "having" in the present application are intended to indicate that there is a feature, step, operation, component, part, or a combination thereof described in the specification, but one or more other features, steps, operations It is to be understood that the present invention does not exclude in advance the possibility of the presence or the addition of elements, parts, or combinations thereof. .

In addition, the repeated description, the well-known function which may unnecessarily obscure the summary of this invention, and the detailed description about a structure are abbreviate | omitted in order not to obscure the summary of this invention. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

1 is a perspective view for explaining the configuration of a fixed stopper for a fire door according to a first embodiment of the present invention.

The drawing is fixed by screwing on one side of the edge of the door frame (5) end is to extend from the perforated part 11 and the perforated part (11) processed in the form of a drill or pointed point to form a groove Direct connection screw (10) consisting of a screw portion 13 of the length member formed by forming a spiral on the outer surface and the head portion 15 having a diameter size relatively extended to extend from the screw portion 13, and the direct screw ( 10 is provided in a cylindrical shape with a through hole 21 formed in the center to penetrate the threaded portion 13 of one side, and a seating groove 23 is formed on one surface so that the head 15 is inserted and buried. A fixing pin 20 made of metal having a flat portion 25 formed by processing the surface of the door frame 5 in one surface of the door frame 5a of the door frame 5, and a fire door corresponding to the fixing pin 20. To be buried in one side of frame (3) One side is provided in an open cup shape, but the inlet side edge portion is formed with a gasket flange portion 31 which is bent to extend outwards, the gap corresponding to the thickness of the fire door iron plate (3a) from the gasket flange portion 31 There is shown a fixed stopper for a fire door made of a pin pusher 30 having a locking portion (33) for protruding formed to create a fitting force.

2 is a cross-sectional view showing an installation state of a fixed stopper for a fire door according to the first embodiment of the present invention.

In the drawing, the gasket flange portion 31 and the latching portion 33 which are expanded in diameter at intervals corresponding to the thickness of the fire door steel plate so as to be firmly fitted into the installation hole 3h formed in the fire door 3 steel plate. It is formed in the pin rolling prevention device 30 and the door frame (5) is fixedly installed in the receiving space 35 therein through the open inlet of the pin rolling prevention device 30 to generate a fire Fixing pin 20 for supporting the fire door (3) is pushed by the wind pressure due to the hole and the perforated part 11 and the screw 13 for fixing the fixing pin 20 to the door frame steel plate (5a) and A fixed stopper for a fire door is shown, which is composed of a direct screw (10) consisting of a head (15).

3 is a schematic view for explaining a mounting position of the fire door fixing stopper according to the embodiment of FIG.

In the figure, a door frame 5 provided in a rectangular frame shape and a fire door 3 hinged to the door frame 5 are provided to be rotatable, and one side of the door frame 5 is directly connected with a screw. Fixing pin 20 is firmly fixed by the (10) is provided, the fire door (3) is a configuration in which the pin pusher 30 formed in the receiving space 35 is buried installed, the above The fixed pin 20 and the pin pusher 30 are installed so that they do not interfere with each other when the fire door 3 rotates, but when the wind pressure acts on the fire door 3 in a closed state due to a fire, the fire door The fixed stopper for the fire door is shown in multiple numbers in order to prevent the door 3 from being pushed out of the door frame 5. As shown in FIG.

Figure 4 is a perspective view for explaining the configuration of the fixed stopper for the fire door according to the present invention, and is similar to the configuration of Figure 1 shown above, but the installation position of the fixing pin 20 and the pin pusher 30 It is illustrated that the configuration in the opposite direction to each other.

The drawing is fixed to the one side of the edge of the fire door (3) by screwing the end portion to be drilled or drilled in the form of a drill blade or pointed point to form a groove to extend from the perforated part (11) Direct connection screw (10) consisting of a screw portion 13 of the length member formed by forming a spiral on the outer surface and the head portion 15 having a diameter size relatively extended to extend from the screw portion 13, and the direct screw ( 10 is provided in a cylindrical shape with a through hole 21 formed in the center to penetrate the threaded portion 13 of one side, and a seating groove 23 is formed on one surface so that the head 15 is inserted and buried. A fixing pin 20 made of a metal material having a flat portion 25 formed by flatly processing the surface of the fire door iron plate 3a of the fire door 3 to a surface contact, and a door frame corresponding to the fixing pin 20. We are buried in frame one side of (5) and work The gasket flange portion 31 is provided to have an open cup shape, and the inlet side edge portion is bent to extend outwardly, and a gap corresponding to the thickness of the door frame iron plate 5a is formed from the gasket flange portion 31. There is shown a fixed stopper for a fire door made of a pin pusher 30 having a locking portion (33) for protruding and forming a fitting force.

Referring to the configuration of the fixed stopper for the fire door according to the present invention with reference to the drawings in detail as follows.

The present invention provides a simple structure and good workability to enable installation without any limitations on the size and shape of the fire door (3), and fire occurs in a state where the fire door (3) is closed regardless of the function of the door closer. The closed state, that is, the state in which the fire door 3 is closed to the door frame 5 can be stably maintained even when the wind pressure is applied, thereby preventing the propagation of smoke or toxic gas, including flames. The main technical feature is to provide a fixed stopper for the fire door.

The fixed stopper for the fire door according to the present invention is provided with a door frame 5, which is a door frame element formed by bending an iron plate, and the door frame 5 can be opened and closed. It is installed in the direct connection screw 10 and the fixing pin 20 and the door frame 5 or fire door (3) that is installed on any one of the door frame (5) or fire door (3) largely It consists of a pin pusher 30 to be installed on the remaining one iron plate, Figures 1 to 3 are to be opened and closed on the door frame 5 and the door frame 5 which is a door frame element formed by bending the iron plate. It is installed in the fire door (3) made by bending the iron plate similarly to be provided is directly installed in the direct connection screw 10 and the fixing pin (20) and the fire door (3) installed on the door frame (5) Composed of pin pusher 30 It is shown.

Direct screw 10 is a screw member made of a metal material that is screwed to the edge of the door frame 5 using a tool such as a screwdriver, in the present invention, the screw directly without drilling a separate hole in the door frame (5) In order to enable fastening, the end portion is formed with a drilled portion or a drilled portion 11 formed in the form of a pointed tip or a pointed tip, and is formed to extend to one side of the drilled portion 11 to form a spiral on the outer surface. It is the structure which consists of the screw part 13 of a length member, and the head part 15 which has the diameter extended by extending to one side of this screw part 13, and is extended.

When the direct connection screw 10 rotates in one direction by using a tool such as a screwdriver in a state in which the perforated part 11, which is the end portion thereof, is contacted with one side of the door frame 5, a hole is formed in the door frame iron plate 5a. While entering the screw portion 13 is fastened and bound.

The fixing pin 20 is formed of a metal material fixed to the door frame iron plate 5a in a state of being assembled to the direct connection screw 10. The fire door 3 will be described later without position interference by the rotation angle when the door is rotated. To be inserted into or separated from the receiving space 35 of the pin pusher 30, the fire door (3) in the closed state the pin 20 is partially inserted into the pin pusher 30 Therefore, in this state, the operation of opening and closing the fire door 3 in the rotational direction does not cause any position interference, but when the fire door 3 is pushed in a direction perpendicular to the wind pressure due to the fire, the pin pusher 30 and the fixing pin 20 is locked in the direction in which the fire door 3 is pushed to prevent the fire door 3 from being deformed as a result.

The fixing pin 20 is provided in a cylindrical shape, and a through hole 21 having a size through which the threaded portion 13 of the direct connection screw 10 is inserted is formed at the center thereof, and the direct connection screw (1) is formed at one edge thereof. A seating recess 23 is formed to be inserted into and seated by the head of 10, and the other side opposite to the seating recess 23 is in close contact with one surface of the door frame iron plate 5a. It is a structure in which the flat part 25 processed to make it flat is formed.

The pin pusher 30 is buried in the installation hole 3h formed at one side of the edge of the fire door 3 corresponding to the fixing pin 20 to be buried and fixed when the fire door 3 is rotated. The fixing pin 20 is formed of a metal material to have a cup shape by entering or separating into the accommodation space 35 without position interference.

The pin pusher 30 forms a gasket flange portion 31 which is formed by bending an open inlet edge portion outward to have an expanded diameter with respect to the installation hole 3h, and the gasket flange portion ( 31, a plurality of engaging portions 33 formed by protruding through pressure molding in the outward direction are formed at an interval corresponding to the thickness of the fire door steel plate 3a on which the installation holes 3h are formed. . That is, the gap between the gasket flange portion 31 and the locking portion 33 corresponds to the thickness of the fire door steel plate 3a in which the installation hole 3h is formed, so that the pin pusher 30 of the present invention is In the state assembled by the fitting hole 3h by interference fit, it is suppressed that it will fall easily or it will flow.

On the other hand, the engaging portion 33 in the present invention is formed with a plurality of three to five spaced apart at equal intervals, it is preferable to form a protrusion by pressing in the outward direction.

In addition, the gasket flange portion 31 is provided to have a large area as possible, and the peripheral portion of the installation hole 3h in which the gasket flange portion 31 is installed has a step as shown in the drawing so that the flange portion ( 31 is preferably provided in a buried state so that flame or gas does not pass through the periphery of the installation hole 3h.

On the other hand, the fixing pin 20 in the present invention is provided in a cylindrical shape, is provided to have a diameter of 9 ~ 12mm, the pin pusher 30 is preferably provided to have an internal diameter of 18 ~ 24mm. .

In addition, the direct screw 10, the fixing pin 20 and the pin pusher 30 in the present invention is preferably formed of a metal material to prevent deformation or damage due to heat when a fire occurs.

4 is a sectional view showing the principal parts of an installation example according to another embodiment of a fixed stopper for a fire door according to the present invention.

As shown in the present invention, the direct connection screw and the fixing pin in the present invention may be installed on the fire door 3 side as shown in FIG. 4 in addition to the door frame as described above. If the 10 and the fixing pin 20 is installed in the fire door 3, the pin pusher 30 corresponding thereto may be installed at a corresponding position of the door frame 5.

However, in the present invention, since the thickness of the door frame iron plate 5a to which the direct connection screw 10 is fastened is thicker than the thickness of the fire door iron plate 3a as a preferred embodiment, stable screw fastening is possible. It is proposed to be installed as described in FIG.

The installation position of the fixed stopper for the fire door according to the present invention configured as described above may be installed in a plurality of positions depending on the size or shape of the fire door, preferably as shown in Figure 3 the fire door is to be rotated One to two are installed between the upper hinge and the lower hinge, which are elements that support the door frame, and in addition, 1 on the upper and lower sides, respectively, based on the part where the handle for opening and closing the fire door is opposite. It may be possible to install them individually.

On the other hand, in the fixed stopper for the fire door shown in Figs. 1 to 4, the pin pusher 30 is secured by being inserted into the installation hole (3h) formed on one side of the edge of the fire door (3) for the worker to rubber It can be installed through a relatively simple and quick work in the form of hitting with a tool such as a hammer. However, when the impact force is excessively applied, since the flange portion 31 may be deformed or the edge portion of the installation hole 3h may be deformed and loosened, in the present invention, in addition to the construction method due to the impact, the screwing structure It may be possible to be assembled to the installation hole 3h.

That is, Figures 5 to 8 is a view showing a modified embodiment of the pin pusher 30 in the fixed stopper for fire door according to the present invention, the drawing in order to improve the construction of the pin pusher 30 A screw cross groove 37 is formed on the outer surface to form a threaded portion 39 formed by threading, and on the inner bottom surface side, a worker can rotate or rotate clockwise or counterclockwise using a screwdriver to tighten or loosen. The formed stopper for the fire door was shown.

The pin pusher 30 according to the present embodiment is the same as the overall shape or configuration of the pin pusher 30 shown in Figures 1 to 4 above, the fire door corresponding to the fixing pin 20 The fixing pin 20 is fixed to the installation hole 3h formed at one side of the edge of the frame 3 by screwing structure, so that the fixing pin 20 moves to the inner receiving space 35 without position interference when the fire door 3 is rotated. It is formed to have a cup shape by entering or separating.

The pin pusher 30 forms a gasket flange portion 31 which is formed by bending an open inlet edge portion outward to have an expanded diameter with respect to the installation hole 3h, and the gasket flange portion ( 31, a plurality of engaging portions 33 formed by protruding through pressure molding in the outward direction are formed at an interval corresponding to the thickness of the fire door steel plate 3a on which the installation holes 3h are formed. .

In particular, the pin pusher 30 in the present embodiment is formed with a screw thread portion 39 formed by processing the thread on the outer surface so as not to interfere with the locking portion 33, the screw portion 39 is It is provided to have a corresponding pitch to be fastened to the installation hole (3h) by a screwing method. And the pin pusher 30 of the present invention is formed with a screw cross groove 37 on the inner bottom surface side, the screw cross groove 37 is a clockwise or counterclockwise direction by the operator using a cross or straight screw driver The pin pusher 30 is fastened or released in the state where the pin pusher 30 is inserted into the installation hole 3h.

On the other hand, Figures 9 to 11 is a view showing a third embodiment of the fixed stopper for the fire door according to the present invention, Figure 9 is a view of the pin pusher 30 from the upper side, Figure 10 is viewed from the lower side It is a figure, and FIG. 10 is a figure which shows the installation state.

In the drawing, in order to improve the workability of the pin pusher 30, the threaded portion 39 formed by threading the outer surface is formed. On the inner bottom side, a worker uses a tool such as a socket wrench, a hexagon wrench, a polygonal screwdriver, or the like. There is shown a fixed stopper for a fire door further formed with a socket portion 38 which can be rotated clockwise or counterclockwise to be tightened or loosened.

The pin pusher 30 according to the present embodiment is the same as the overall shape or configuration of the pin pusher 30 shown in Figures 5 to 8 described above, the fire corresponding to the fixing pin 20 The fixing pin 20 is fixed to the installation hole 3h formed at one side of the edge of the door 3 by a screwing structure. It is formed to have a cup shape by entering or separating into.

The pin pusher 30 is formed with a gasket flange portion 31 which is formed by bending an open inlet side edge portion to have an expanded diameter with respect to the installation hole 3h, and processing a thread on the outer surface thereof. The screw thread portion 39 is formed. At this time, the screw thread portion 39 is provided to have a corresponding pitch to be fastened to the mounting hole (3h) by a screwing method.

On the other hand, the installation hole (3h) is to be formed through the size having a diameter enough to screw the threaded portion 39, and has a diameter larger than the diameter formed by the threaded portion (39) Since screw fastening is impossible, it is preferable to have a diameter smaller than the diameter formed by the threaded portion 39.

And the pin pusher 30 of the present invention is characterized in that the socket portion 38 is formed protruding to form a polygonal fitting groove on the inner bottom surface side, the socket portion 38 is a bar of the polygon corresponding to the operator The pin pusher 30 is fastened or loosened in a state where the pin pusher 30 is inserted into the installation hole 3h by applying a rotational force in a clockwise or counterclockwise direction using a tool such as a hexagon wrench, a socket wrench or a polygonal screwdriver. .

On the other hand, the socket portion 38 in the present invention is formed integrally with the pin pusher 30, it is proposed that the metal plate is preferably formed by pressing by using a press apparatus.

The fixed stopper for the fire door according to the present embodiment configured as described above is smaller than or similar to the diameter of the pin pusher 30 by using a drilling machine in any one of the fire door or the door frame using a drilling machine. A hole having a size is formed through the hole, and the socket portion 38 of the pin pusher 30 is inserted into the hole.

Subsequently, the socket portion 38 is assembled by inserting a polygonal rod portion of a tool such as a hexagon wrench or a socket wrench and applying a tightening force clockwise to fasten the screw portion 39 to the hole.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention belongs may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. You will understand that. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive.

Claims

Fixing for fire door which is installed on door frame made by bending iron plate and fire door which is rotatably provided on this door frame, and is installed in each fire door made by bending iron plate to prevent the closed fire door being pushed by wind pressure In the stopper,

Fixed to one side of the iron plate rim of the door frame or the fire door to the end portion is formed by drilling a drill blade or a pointed end to form a groove and a spiral portion on the outer surface to form a screw thread of the length member A direct screw having a diameter of one side of the screw portion, the metal screw consisting of a head portion;

The direct connection screw is fixed to the steel plate on which the direct connection screw is installed, and a through hole through which a screw part is inserted is formed at the center thereof, and one side edge forms a seating groove part into which the head is inserted and is seated. A fixing pin made of a pillar-shaped metal material having a flat part which is processed to be in flat surface contact with one surface of the iron plate to be installed;

The fixing pin is fixed to the installation hole formed at one side of the steel plate rim of the remaining steel plate of the fire door or the door frame corresponding to the fixing pin by being inserted into the receiving space without interference when the fire door is rotated. A gasket flange portion having a cup shape having one surface open or separated to be bent outwardly and having an enlarged diameter with respect to the installation hole, and an iron plate having the installation hole formed at one outer surface of the edge. A pin pusher prevention tool made of a metal material having a plurality of engaging portions formed by protruding by pressure molding in an outwardly spaced manner at intervals corresponding to the thickness thereof;

Fixed stopper for the fire door, characterized in that comprises a.
The method of claim 1, wherein the mounting hole is stepped in a shape corresponding to the edge portion thereof is fitted to the gasket flange portion;

The fixing pin is provided in a cylindrical shape is provided to have a diameter of 9 ~ 12mm, the pin pusher is a fixed stopper for the fire door, characterized in that provided with an internal diameter of 18 ~ 24mm.
According to claim 1, wherein the pin pusher is formed on the outer surface of the threaded portion formed by forming a screw thread to be screwed into the installation hole, the inner bottom surface of the screw cross groove to apply a tightening or loosening force with a screw driver Fixed stopper for the fire door, characterized in that the addition is formed.
According to claim 1, wherein the pin pusher is formed on the outer surface of the threaded portion formed by forming a screw thread to be screwed into the installation hole, the inner bottom surface is fitted with a multi-rod bar is inserted to apply a tightening or loosening force Fixed stopper for a fire door, characterized in that the socket portion formed by forming a polygonal groove to be protruded.