KR101065400B1 - Automatic locking pin of fire door - Google Patents

Abstract

The present invention relates to a fire door automatic fire safety pin, a guide portion (10) formed with an induction groove (12) cut out extending in parallel with the fixing protrusion (11) on the rear end of the fixing protrusion (11); A spring fitting portion 22 is formed inside the guide portion 10 and fitted with a spring 21 on the rear end thereof, and is formed in parallel with the fixing protrusion 11 protruding from the guide portion 10 on the outer surface thereof. A locking part 20 protruding so that the separating protrusion 23 positioned is exposed from the guide groove 12 of the guide part 10; A heat sensing fuse 30 through which fitting holes 31 and 32 fitted to the fixing protrusions 11 of the guide part 10 and the separating protrusions 23 of the locking part 20 are respectively inserted; When the heat sensing fuse 30 is cut by a predetermined temperature rise, the locking portion 20 is formed by a locking fastening portion 40 which is protruded from the guide portion 10 and fastened.

Fire Door, Fire, Safety Pin, Auto Safety Pin, Locking Device

Description

Fire door automatic fire safety pin {AUTOMATIC LOCKING PIN OF FIRE DOOR}

The present invention relates to a safety pin of a fire door, and more particularly, to spread the flame, smoke or toxic gas by automatically locking the fire door by the heat sensing fuse which is broken when the internal heat rises above a certain temperature due to the occurrence of a fire. It is related to the fire safety door safety pin which can prevent the damage to human life and property, as well as facilitate the installation by simple configuration and greatly reduce the cost of installation.

In general, a fire door is installed inside a building, and normally serves as a fire door that blocks outsiders from entering a specific space. In the event of a fire, flame, smoke, and toxic gas are diffused. To prevent this from happening. Therefore, it is mandatory to install the building more than a certain size by fire method.

In particular, as shown in the Daegu subway fire disaster or various fire events, the fire and smoke became the main causes of the expansion of human and physical damages. Therefore, in order to minimize human and physical damages caused by fire, the blocking function for preventing the spread of flame and smoke of fire door is very important.

The door safety device installed in the conventional fire door is installed at the top of the door and is connected to the door frame by the arm. If it is used for a long time, the door safety device is often removed from the connection part between the door frame and the door. It is costly and time consuming.

The door safety device, which is largely divided into general doors and fire doors, adopts a locking function to fix the door at the proper opening angle in addition to the automatic closing function, so that the door can be directly fixed at the proper opening angle as needed. Among the fire doors, the fire is released even when the door is opened, and the lock is automatically released as the soluble substance of the heat-sensing fuse melts due to the temperature rise.

Although many types of fire door safety devices having such a function have been developed in the past, most of them have been manufactured in one piece by adding a locking function and a fire door function to the automatic closing function, which is an original function of the door safety device, and has many defects in its function. I have it.

In particular, even when the fire door function is adopted, since the door locking device is made in one piece with the door safety pin, the door locking device must be manufactured separately from the general door in order to automatically release the locking by the associated operation by the heat sensing fuse. Even if the manufacturing cost is additionally applied and the frictional force decreases due to the melting of the heat-sensing fuse due to the fire, the jamming between the devices that have already been jammed may not be easily canceled only by the reduction of the frictional force, which may cause malfunction. If a malfunction occurs, it is directly connected to a large fire, so there is a problem in that it has a fatal defect that cannot be trusted as a product.

Looking at the fire door safety device of the prior art, Patent No. 10-0457891 has a safety device of the door for the closure has been devised, which penetrates the interior of the predetermined shape of the housing in the longitudinal direction, it is installed on the upper and lower in the housing A shaft supported by the bearing, a link rotatably installed in the protrusion of the shaft penetrating the upper portion of the housing, and a spring support plate horizontally fixed in the housing with a hole through which the shaft penetrates; And a torsion coil spring connected to the shaft on the spring support plate and torsional by rotation of the shaft, and fixedly installed between the spring support plate and the lower portion of the housing, and having a hole through which the shaft penetrates. Pinionker while winding the formed rack support plate and the lower axis of the spring support plate, respectively First and second compression coil springs separated from each other by a pinion, a pinion installed through the shaft and having one side of the second compression coil spring inserted into a predetermined depth, and a rack pressurized with the pinion and fixed on the rack support plate. And a door fixing means configured to fix the door at a predetermined opening angle, and fastened to the pinion cover by a fastening member at an outer side of the housing, and moving up and down along a vertical groove formed in a predetermined portion of the housing. And a fuse installed horizontally through a predetermined portion of the shaft in the door fixing means and melted at a predetermined temperature.

Therefore, the fire door is automatically locked by cutting off the fuse at the time of fire, thereby preventing the spread of flames, smoke and toxic gases.

However, in the case of such a prior art, since the components of the fire door door safety device are complicated, there is a problem that the installation cost is increased by requiring an increase in the production cost.

Furthermore, since the prior art is made up of a combination of many components, there is a high probability that a failure of any one of many components will occur, and if any one of these components fails, the automatic Since the entire safety device needs to be replaced, the cost is large.

The present invention has been made to solve the problems of the conventional automatic fire door safety device, the fire door is automatically locked by the heat detection fuse that is broken when the internal heat rises above a certain temperature when a fire occurs, so that the flame or smoke or toxic gas It prevents the spread of fire and minimizes the damage of people and property, as well as the reduction of the production cost by the simple configuration, reducing the installation cost and improving the replacement workability. The purpose is to provide a fire safety pin.

The fire door automatic safety pin of the present invention as a means for achieving the above object, the guide portion is formed with a guide projection formed in the inclined protrusion extending in parallel with the fixed projection on the rear end of the outer surface; A locking part which is formed inside the guide part and has a spring fitting part fitted with a spring at the rear end side thereof, and the separating protrusion protruding from the guide groove of the guide part, the separating protrusion being located in parallel with the fixing protrusion protruding from the guide part; A heat-sensing fuse having through holes fitted in the fixing protrusions of the guide unit and the separating protrusions of the locking unit, respectively; And a locking fastening portion for locking the locking portion to protrude from the guide portion when the heat sensing fuse is disconnected by a constant temperature rise.

The front end of the guide portion may further be configured to identify the fuse position identifying the position where the heat sensing fuse is coupled.

The guide part may be formed in a cylindrical shape and the locking part inserted into the guide part formed in the cylindrical shape and slid left / right may be formed in a circular shape.

In addition, the heat-sensitive fuse is made of a soft lead material which is broken when the internal heat temperature which rises at the time of fire rises above 70 ° C.

The rear end side of the locking portion is further configured to prevent the departure from the locking side from the inner side of the guide portion is further configured, the stop projection to the release preventing portion is further protruded inside the tip of the guide portion, the stop projection is inside the guide portion It is configured not to interfere with the sliding movement of the locking portion configured to retract in.

The outer circumferential surface of the guide part may be further formed with a screwing part formed on the outer circumferential surface of the guide part so as to screw the guide part to the door, and a fastening groove into which the driver for rotating the guide part is inserted into the guide part.

The outer peripheral surface of the locking fastening portion is characterized in that the spiral portion for screwing the locking fastening portion to the door frame is further formed.

Inside the locking fastening part, a cover for preventing dust or foreign matter from flowing into the locking fastening part is interpolated by a fixing piece connected by an elastic spring.

The outer surface of the fixing piece of the cover is further formed with a spiral projection is characterized in that the fixing piece is screwed to the inside of the locking fastening portion.

The outer side of the guide portion is further configured to include a main body is inserted into the guide portion, the main body is formed in the front of the bracket with a through hole in the center through the coupling hole in the upper and lower ends, the inside is opened.

The fire door automatic fire safety pin of the present invention is a fire occurs in the building and the internal temperature is raised above a certain temperature, the heat-sensing fuse formed by the soft lead is cut off and thus the elasticity of the spring that is stretched and fixed by the heat-sensing fuse is increased. Due to the release of tension from the locking part, it is protruded and locked to the locking fastening part installed on the door frame or the opposite door to lock the fire door to prevent the spread of flame, smoke or toxic gas in the event of a fire, thereby preventing personal injury and property damage. Can be minimized.

In addition, since the fire door automatic fire safety pin of the present invention is made of a simple configuration, the production cost is reduced and the installation cost of the consumer is economical by inducing production cost reduction.

In addition, the fire door automatic fire safety pin of the present invention is a simple configuration greatly reduces the failure rate and easy replacement work is greatly improved usability.

In addition, the fire door automatic fire safety pin of the present invention can be used to install a variety of doors, sliding doors, as well as various wooden doors, steel doors, aluminum doors, elevator doors.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

1 is an exploded perspective view showing the configuration of the fire door automatic fire safety pin of the present invention, Figure 2 is a configuration diagram showing an installation example of the fire door automatic fire safety pin of the present invention, Figure 3 is a configuration showing an operation example of the fire door automatic fire safety pin of the present invention. 4 is a configuration diagram showing another example of the fire door automatic fire safety pin of the present invention, Figure 5 is a configuration diagram showing another installation example of the fire door automatic fire safety pin of the present invention, Figure 6 is a fire door automatic fire safety pin of the present invention Figure 7 is a configuration diagram showing another example, Figure 7 is a configuration diagram showing another example of the fire door automatic fire safety pin of the present invention, Figure 8 is a configuration diagram showing another example of the fire door automatic fire safety pin of the present invention, Figure 9 is Fig. 10 is a configuration diagram showing another example of the fire door automatic fire safety pin of the present invention, Figure 10 is another of the fire door automatic fire safety pin of the present invention Fig. 11 is an exploded perspective view showing another configuration, and Fig. 11 is a configuration diagram showing an installation example of the configuration of Fig. 10.

As shown in the present invention, the fire door automatic fire safety pin according to the present invention includes a guide part 10 having a guide protrusion 10 protruded in parallel with the fixed protrusion 11 and a fixed protrusion 11 protruding on the rear end side; A spring fitting portion 22 is formed inside the guide portion 10 and fitted with a spring 21 on the rear end thereof, and is formed in parallel with the fixing protrusion 11 protruding from the guide portion 10 on the outer surface thereof. The locking projection 20 is located so that the separating projection 23 is located from the guide groove 12 of the guide portion 10, the fixing projection 11 and the locking portion 20 of the guide portion 10. The heat sensing fuse 30 through which the fitting holes 31 and 32 fitted to the separation protrusions 23 of the e) are cut off, and the locking unit when the heat sensing fuse 30 is cut off by a predetermined temperature rise. 20 is composed of a locking fastening portion 40 which is protruded from the guide portion 10 and fastened.

The fixing projection 11 is not necessarily to be located on the outer surface of the guide portion, it is also possible to be located inside the guide portion as shown in FIG. Separation protrusion 23 is not necessarily to protrude to the outside of the guide groove, if necessary as shown in Figure 6 to form a longer guide groove and the fixing projections 11 and the separation projection 23 is formed therein It is also possible. However, when the heat sensing fuse 30 is cut off and the locking part 20 protrudes toward the locking fastening part 40, it is important not to interfere with the movement of the broken heat sensing fuse 30.

In the case of the steel door or the aluminum door, the guide part 10 may be welded to the frame and the outer surface constituting these doors by welding.

On the surface exposed to the outside of the guide portion 10 may be further configured a fuse position identification unit 13 for identifying the position where the heat sensing fuse 30 is coupled. The fuse position identification part 13 is a kind of marking (marking) that visually confirms the mark on the exposed surface of the guide part when the door is opened and is visible at a position extending horizontally in the longitudinal direction of the heat sensing fuse 30 ( See FIG. 1).

Accordingly, since the worker can grasp the position of the heat sensing fuse 30 through the fuse position identification unit 13 from the outside, the work is easily performed during the reinstallation of the heat sensing fuse 30, and the heat sensing fuse It is easy to install so that the 30 is located on the surface side of the door.

The guide part 10 is formed in a cylindrical shape and the locking part 20 which is inserted into the guide part 10 formed in the cylindrical shape and slides to the left / right side may be formed in a circular shape, as well as a square or a hexagon. Of course, it can be formed in a variety of shapes.

In addition, the heat sensing fuse 30 is made of a soft lead material which is broken when the internal temperature rises to 70 ° C. or higher when a fire occurs, and the heat sensing fuse 30 does not necessarily have to be fitted with holes. Like S-shaped or C-shaped, it is also possible to form a ring for hanging on the fixing projection 11 and the separating projection 23 on both sides.

When the fire occurs, the fire door automatic fire safety pin of the present invention configured as described above increases the room temperature by the temperature of the flame and rises above a predetermined temperature, so that the heat sensing fuse 30 formed of the soft lead material is cut off. As the tension state of the locking part 20, which was maintained in the tension state by the heat sensing fuse 30, is released, the locking part 20 is opened by the extension of the spring 21 fitted to the spring fitting part 22. Protruding from the 101 is fastened to the locking fastening portion 40 coupled to the door frame 102 or the opposite door.

Accordingly, the automatic locking of the door 101 is performed to prevent the spread of flames, smoke, and toxic gases generated by fire, thereby minimizing human and property damage.

The rear end side of the locking portion 20 is further configured to prevent the departure portion 50 to prevent the locking portion 20 from being separated from the inner side of the guide portion 10, the departure prevention portion 50 is The stop protrusion 51 further protrudes inside the tip of the guide part, but the stop protrusion 51 is configured to not interfere with the sliding movement of the locking part 20 which is configured to be inserted into the guide part 10.

Therefore, when the locking part 20 is fastened to the locking fastening part 40 by fire extinguishing practice or other external force, the locking part 20 is reconfigured to the broken heat sensing fuse 30. It is easy to reconfigure and install the present invention by being completely prevented from falling out of the interior of the guide portion 10 by the departure prevention portion 50.

In addition, a screw fastening portion 14 is further formed on the outer circumferential surface of the guide portion 10 to screw the guide portion 10 to the door, and the guide portion 10 is rotated at the tip of the guide portion 10. The fastening groove 15 into which the driver is fitted may be further recessed.

Therefore, after the screwdriver is inserted into the fastening groove 15, the guide part 10 is turned on the door 101 by the screw fastening part 14 formed on the outer circumferential surface of the guide part 10 by turning the guide part 10. Fastening is composed of screw fastening method.

The screw fastening portion 14 is broken when the heat sensing fuse 30 is formed on the outside of the guide portion 10 and the locking portion 20 is protruding toward the locking fastening portion 40 side, the broken heat detection The thermal sensing fuse 30 may be formed on the outer circumferential surface of the guide part 10 so as not to interfere with the movement of the fuse 30.

In addition, a spiral portion 41 may be further formed on the outer circumferential surface of the locking fastening portion 40 to screw the locking fastening portion 40 to the door frame, whereby the locking fastening portion 40 is also a spiral portion ( 41) can be fastened to the door frame 102 by screwing.

The fire door automatic safety pin of the present invention, which can be configured on both sides of the elevator door 103, in this case, the guide portion 10 is configured on one side and the locking fastening portion 40 of the guide portion 10 It is configured on the other side corresponding thereto.

Inside the locking fastening portion 40, the cover 60 for preventing dust or foreign matter from flowing into the locking fastening portion 40 is interpolated by the fixing piece 62 connected by the elastic spring 61. It is done.

Accordingly, the cover 60 prevents dust or foreign matter from entering the inner side of the cover 60 at normal times and causes a fire so that the cover 60 is locked by the expansion spring 61 when entering the locking part 30. The cover 60 is retracted to the rear inner side of the fastening part 50.

The cover 60 may be configured to be rotated outward from the front side of the locking fastening part 50 without being configured to move forward and backward to the inner side of the locking fastening part 50. In addition, it is possible to use a variety of elastic members instead of the expansion spring, it is also possible to rotate in such a way that one side of the cover is flipped to the inside of the hinge, such as a hinged door instead of retreating to the inner side.

A spiral protrusion 63 is further formed on an outer surface of the fixing piece 62 of the cover 60, and the fixing piece 62 is screwed into an inner side of the locking fastening part 40.

Therefore, since the fixing piece 62 of the cover 60 is fastened to the inside of the locking fastening part 50 by the screw fastening method by the spiral protrusion 63, the cover 60 can be firmly fastened and thus the cover 60 can be fastened. ) And locking locking unit 40 to prevent separation or separation.

The outer side of the guide portion 10 is further configured to include a main body 70, which is loaded with the guide portion 10, the main body 70 is the center of the front end side of the guide portion 10 is located In the protruding hole 71 is passed through and the upper and lower ends of the bracket 73 through the coupling hole 72 is formed in the front and the inside is made open.

The enclosed body 70 is preferably formed in a rectangular shape as a whole, but is not limited thereto, and the enclosed body 70 is inserted into the fire door 101 to cover the bracket 73. It is coupled to the side of the fire door 101 by a fastening means such as a fastening screw (N) to the coupling holes 72, 72 through the upper and lower ends.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

1 is an exploded perspective view showing the configuration of the fire door automatic fire safety pin of the present invention.

Figure 2 is a block diagram showing an installation example of the fire door automatic fire safety pin of the present invention.

Figure 3 is a configuration diagram showing an operation example of the fire door automatic fire safety pin of the present invention.

Figure 4 is a block diagram showing another example of the fire door automatic fire safety pin of the present invention.

Figure 5 is a block diagram showing another installation example of the fire door automatic fire safety pin of the present invention.

Figure 6 is a block diagram showing another example of the fire door automatic fire safety pin of the present invention.

Figure 7 is a block diagram showing another example of the fire door automatic fire safety pin of the present invention.

Figure 8 is a block diagram showing another example of the fire door automatic fire safety pin of the present invention.

Figure 9 is a block diagram showing another example of the fire door automatic fire safety pin of the present invention.

10 is an exploded perspective view showing another configuration of the fire door automatic fire safety pin of the present invention.

11 is a configuration diagram illustrating an installation example of the configuration of FIG. 10.

<Description of the symbols for the main parts of the drawings>

10: guide portion 11: fixed projection

12: guide groove 13: fuse position identification unit

14: screw connection 15: tightening groove

20: locking portion 21: spring

22: spring fitting 23: separation projection

30: heat sense fuse 31, 32: fitting hole

40: locking fastening part 41: spiral part

50: departure prevention part 51: stop projection

60: cover 61: expansion spring

62: fixed piece 63: spiral projection

70: housing body 71: protruding hole

72: coupling hole 73: bracket

Claims (10)

A guide part 10 having a fixing protrusion 11 protruding from the rear end side thereof and having a guide groove 12 cut in parallel with the fixing protrusion 11; A spring fitting portion 22 is formed inside the guide portion 10 and fitted with a spring 21 on the rear end thereof, and is positioned in parallel with the fixing protrusion 11 protruding from the guide portion 10. A locking part 20 in which the separation protrusion 23 protrudes; A heat sensing fuse 30 fitted into the fixing protrusion 11 of the guide unit 10 and the separating protrusion 23 of the locking unit 20; And a locking fastening portion (40) in which the locking portion (20) protrudes from the guide portion (10) when the heat sensing fuse (30) is cut off by a predetermined temperature rise. Auto fire safety pin. The method according to claim 1, A fire door automatic fire safety pin, characterized in that the front end of the guide portion 10 is configured to further comprise a fuse position identification unit 13 to determine the position where the heat-sensing fuse 30 is coupled. The method according to claim 1, The guide part 10 is formed in a cylindrical shape and the locking part 20 which is inserted into the guide part 10 formed in the cylindrical shape and slides to the left / right side is formed in a circular shape, automatic fire door safety pin. The method according to claim 1, The thermal sensing fuse 30 is a fire door automatic fire safety pin, characterized in that made of a soft lead material that is broken when the internal heat temperature rises above 70 ℃ during fire. The method according to claim 1, The rear end side of the locking portion 20 is further configured to prevent the departure portion 50 to prevent the locking portion 20 from being separated from the inner side of the guide portion 10, the departure prevention portion 50 is The stop protrusion 51 is further protruded inside the tip of the guide part, The stop projection 51 is a fire door automatic fire safety pin, characterized in that configured to not interfere with the sliding movement of the locking portion 20 is drawn in the guide portion 10 inside. The method according to claim 1, Fireproof door automatic fire safety pins, characterized in that the outer threaded surface of the guide portion 10 is further formed by screwing the portion 14 to screw the guide portion to the door. The method according to claim 1, Fireproof door automatic fire safety pin, characterized in that the outer peripheral surface of the locking fastening portion 40 is further formed with a spiral portion 41 for screwing the locking fastening portion 40 to the door frame or the door facing the door. The method according to claim 1, The inside of the locking fastening portion 40, the cover 60 for preventing dust or foreign matter from entering into the inside of the locking fastening portion 40 is interpolated by a fixing piece connected by an elastic member, characterized in that Fire door auto fire safety pin. The method according to claim 8, Spiral protrusion 63 is further formed on the outer surface of the fixing piece 62 of the cover 60 so that the fixing piece 62 is screwed to the inside of the locking fastening portion 40, automatic fire door Fire safety pin. The method according to claim 1, The outer side of the guide portion 10 is further configured to include a main body 70, the guide portion 10 is charged, The enclosure-type body 70 is a fire door automatically characterized in that the protrusion hole 71 is formed in the center of the front end side of the guide portion 10, the bracket 73 is formed on the front and the inside is opened Fire safety pin.

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