KR100620557B1 - An assembly of safety door with automatic door closer - Google Patents

Abstract

The safety fire door assembly with built-in automatic door closer not only has excellent appearance by installing a hinge device on the fire door frame, but also adjusts the door opening / closing strength control unit and door closing force control unit to the fire door body. Disclosed is a safety fire door assembly which can be easily adjusted and has a safety packing on the fire door body and the fire door frame, so that there is no problem in safety. According to the present invention, a safety fire door assembly comprising a fire door frame and a fire door body, comprising: a fire door frame having a hinge device embedded in an upper portion thereof and a lower hinge embedded in a lower portion thereof; A lower hinge hole into which the lower hinge of the fire door frame is inserted is formed, and a bushing portion into which the hinge shaft of the upper hinge is inserted is formed in the upper portion of the door closing strength adjustment unit and an automatic adjustment unit for adjusting the door closing force speed. A fire door body in which a door closer is built; And it is possible to achieve the object by providing a safety door door with a built-in automatic door closer characterized in that a safety packing device is installed between the side of the door and the fire door body in which the hinge device is built.

Description

{An assembly of safety door with automatic door closer}

1 is a schematic view of the safety fire door assembly of the present invention

Figure 2a is a state in which the automatic door closer is built in the upper portion of the fire door body of the present invention

Figure 2b is a schematic bottom view of the fire door body of the present invention

Figure 3 is a detailed view of the automatic door closer portion of the present invention

Figure 4 is a cross-sectional view of the automatic door closer portion of the present invention

Figure 5a is a plan view of the fire door body closed state of the present invention

Figure 5b is a plan view of the open fire door body of the present invention

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

10: safety fire door assembly 100: fire door frame

200: fire door main body 300: upper hinge device

400: lower hinge 500: automatic door closer

510: closure portion connection block 520: closure housing

600: strength control unit 610: closure axis

620: adjustment unit 630: torsion spring

700: speed control unit 710: speed control unit shaft

720: Speed control part housing 730: Speed control part interlocking oil container

750: oil oil and discharger 770: regulator

800: space 900: safety packing

The present invention relates to a fire door mainly used as an entrance door of an apartment, etc. More specifically, in the apartment fire door, the hinge device is built on the fire door frame in which the fire door is installed, the strength and weakness of the door can be adjusted The automatic door closer, which consists of a speed adjusting part that can adjust the speed of the door and closing force, is built in the fire door body, and the safety door is provided at the corner where the fire door body and the fire door frame on the fixed side of the fire door body come into contact with each other. It is possible to improve the overtightness and of course, it is possible to control the closing of the fire door and the hinge does not protrude to the outside, the exterior is a safety fire door assembly with a built-in automatic door closer.

In general, a hinge device or a hinge is fastened between the door and the door frame and used to open and close the door. The hinge device is protruded to the outside and thus may be destroyed or released by an impact or an artificial method.

In addition, the door closer that automatically closes the door is installed in such a way that a rod is installed between the frame and the door, so the door closer is installed, so the exposure range is wide. Due to the complexity, there were many malfunctions and troublesome adjustment of the closing force of the door.

In addition, there is a gap between the frame of the door and the fire door in fire doors, so it is poor in condensation prevention, windproof, insect repellent, heat dissipation, and soundproofing. There has been a problem that the hand or finger of the elderly or children can be pinched between the frame and the door.

Korean Patent Publication No. 2002-30866 discloses a built-in automatic door closer in order to solve the problems of the related arts, but the contents of the publication simply refer to that a conventional door closer is installed between a frame and a door by a connecting rod. As the concept of embedding inside, the gear and gear shaft are used as the power transmission member, so there is no way to cope with the wear of the gear, and the strength of the closed door is not expected at all.

In addition, the Republic of Korea Patent No. 10-434953 discloses a hinge device of the rotary door, the patent merely discloses a hinge device in the rotary door.

Another prior art Republic of Korea Utility Model Registration No. 20-350082 discloses a safety door, but merely discloses a configuration to insert a safety packing by forming an inclined plate on the side of the door frame and making a space. Therefore, the door closer is not only exposed to the outside can be adjusted to the strength of the door opening and closing, but also to control the closing speed of the fire door is required to provide a safe fire door.

The present invention is to solve the problems of the prior art as described above, the present invention uses a fire door frame with a built-in hinge device, the automatic door closer has a built-in fire door body that can not release the automatic door closer from the outside In addition to the use, of course, by installing a safety packing between the fire door frame and the fire door body, to provide a safety fire door assembly that can control the strength and closing force when the door is automatically closed, but the safety of the fire door is closed automatically. have.

The present invention to achieve the object of the present invention as described above;

Claims [1] A safety fire door assembly comprising a fire door frame and a fire door body, comprising: a fire door frame having a hinge device at an upper portion thereof and a lower hinge at a lower portion thereof;

A lower hinge hole into which the lower hinge of the fire door frame is inserted is formed, and an upper and lower door strength control unit and a door closing force control unit having a bushing in which a hinge shaft of the upper hinge device is inserted toward the upper side is provided. A fire door body in which a door closer is built; And it provides a safety fire door assembly with a built-in automatic door closer, a safety packing device is installed between the fire door frame side and the fire door body in which the hinge device is built.

The upper hinge device embedded in the fire door frame has a hinge shaft inserted into a hole on one side of the support with holes on both sides, and a connecting rod connected to the support and enclosing the hinge shaft therein and opening on one side to be connected to the hinge shaft inside. The hinge shaft housing that can be inserted from the hinge, the connecting rod is connected to the hinge shaft from the opening on one side of the hinge housing is connected to the adjustment screw that can be inserted into the other hole of the support, the connection of the adjustment screw and the connecting rod is circular Hole is formed and the connection side of the adjusting screw is formed in a sphere having a diameter smaller than that of the circular hole, and the upper side of the connecting screw and the support are fixed to the fixing part at the adjusting screw side of the support. It is fixed. In the above-described hinge shaft housing for receiving the hinge shaft and the hinge shaft, a serration projection is formed on the hinge shaft to form a serration groove on the inner side of the hinge shaft housing. In the present invention, the hinge device as described above is embedded in the fire door frame, so that the door is easier to open and close than the hinge or hinge outside the hinge.

In addition, the door opening and closing adjustment portion and the closure shaft is inserted into the interior of the closure housing hollow; An adjustment part inserted into an upper portion of the closure axis and having an opening formed on one side and a protrusion formed on a groove; A closure portion formed integrally with the closure axis on the lower side of the closure axis and larger than the diameter of the closure axis and having one or more openings on one side; And a torsion spring, one end of which is fitted to the opening on the adjustment part and the other end of which is fitted to the opening of the lower fixing part. This provides a fire door body that can adjust the opening and closing strength of the fire door without exposing the door closer to the outside.

In addition, it is preferable to form a groove in the upper portion of the closure portion housing for the external adjustment of the adjustment portion in the contact with the projection formed groove of the adjustment portion, the upper portion of the housing is the serration groove so that the hinge shaft of the hinge device is inserted It is preferable to form the bushing type which is formed and rotates. The outer bushing is rotated by a bearing.

In addition, the speed adjusting portion of the automatic door closer portion extends from the closure shaft portion to the lower portion of the fixing portion of the closure shaft and an adjustment shaft portion formed with a vortex screw thread at the bottom; A speed regulating device having a serrated control valve on one side, a thread formed on the upper side of the control valve, a protrusion smaller than the diameter of the thread on the upper side of the control valve, and a control shaft into which the rubber packing is inserted in the center portion; A thread is formed in the inner central portion so that the threads on the adjusting shaft of the adjusting device can be interlocked, and the lower support which is opened upward and the inside of the lower support are hollow and tapered at the ends. An oil oil ejector composed of oil rods; A control unit shaft interlocking oil barrel configured to have a vortex screw type in which a lower part of the oil rod and an ejector of the oil bar are fitted, and an upper part of the adjusting part shaft of the vortex type screw thread interlocked up and down; The serration groove is formed so that the external serration projection of the control shaft interlocking oil barrel is engaged, and the oil opening and the lower part into which the adjusting shaft can be inserted are inserted in the upper part and the adjusting device is interlocked in the lower part. It consists of a speed adjuster housing in which an external straight screw thread of an oil sump of an oil discharger is fitted.

As described above, in the present invention, the fire door closing speed adjusting unit is built in the fire door body through the door closer housing, so that the closing speed of the fire door can be easily adjusted, and the appearance of the fire door is beautiful.

The lower door of the fire door frame in the present invention may be formed in a multi-stage hinge projection for height adjustment.

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

1 is a schematic diagram of a safety fire door assembly incorporating an automatic door closer of the present invention.

Safety fire door assembly 10 of the present invention is composed of a fire door frame 100 and a fire door main body 200, the fire door frame is built in the upper hinge device 300 and the lower hinge 400, the fire door main body 200 Automatic door closer 500 is built.

Figure 2a shows a state in which the automatic door closer 500 is built in the upper portion of the fire door main body 200 of the present invention. In FIG. 2A, the upper hinge device 300 is embedded in the fire door frame 100. As shown in the upper part of FIG. 4, the upper hinge device 300 has a groove 318 at one side of the support 310 so that the hinge shaft housing is provided. The hinge shaft 317 in the 316 is connected to the connecting table 312, and a spherical shape 313 is inserted into the groove on one side of the connecting table, and the adjustment screw 314 is connected to the lower part of the spherical portion to support the support 310. The fitting part 315 is fixed between the adjusting screw 314 and the hinge housing 316 so that there is play on both sides. Therefore, the hinge shaft 317 moves up and down within the hinge shaft housing 316 by the vertical action of the connecting table 312 in accordance with the adjustment of the adjustment screw 314 of the opposite side. In addition, the inside of the hinge shaft housing 316 and the outside of the hinge shaft 317 has a serration groove and a serration protrusion, which are aka serrations, so that the hinge shaft 317 moves up and down in the hinge shaft housing 316. I am bitten by a combination.

In Figure 2a, the upper hinge device 300 used in the fire door assembly of the present invention is installed in the fire door frame to operate as described above, the closure housing 520 of the automatic door closer 500 is a fire door main body 200 A bushing 351 is formed in the closure housing 520 in which the closure portion connecting portion 510 and the hinge shaft 317 integrally formed with the closure portion 500 are fitted in the inside thereof and are rotatable. Since the serration groove is formed in the bushing 351 here, the serration projection of the hinge shaft 317 fits snugly. Of course, the outside of the bushing 351 is composed of a bearing or the like rotatably.

FIG. 2B schematically illustrates a lower portion of the fire door body 200, and schematically illustrates a lower hinge 400 fixed on the fire door frame and a lower hinge 410 of the fire door body 200 fitted thereto. Here, the hinge shaft 401 of the lower hinge 400 of the fire door frame 100 of the present invention may be formed in multiple stages so that the height adjusting washer 402 can be fitted thereto.

Figure 3 shows the automatic door closer 500 is built into the fire door body 200 of the present invention, the automatic door closer is built in the safety door door assembly, the automatic door closer 500 is a door opening and closing adjustment 600 ) And a door closing speed control unit 700 and a closure housing unit 520 therein.

Here, the strength and weakening portion 600 built in the safety fire door main body 200 of the present invention is fixed to the lower portion of the closure axis 610 and the closure axis 610 is formed with a serration projection on the upper side, the closure axis 610 A larger outer diameter is formed and a fixed portion 630 having an opening portion 633 formed at one side thereof, a protrusion 621 formed at an upper portion of the closure shaft 610 and having a groove 622 formed at an upper portion thereof, and an opening portion at one side thereof. 623 with an adjustment portion 620 and one end is inserted into the opening portion 623 of the upper adjustment portion 620 and the other end is inserted into the closure axis 610 to be fitted to the opening portion 633 of the fixing portion 630. Consisting of a torsion spring (630).

In addition, the speed control unit 700 embedded in the fire door main body 200 of the present invention is formed integrally with the closure shaft 610 to the lower portion of the fixing portion 630 of the closure shaft 610, except for the upper side. An adjusting part shaft 710 on which a vortex screw part 711 is formed; A bearing 712 fitted to the adjustment shaft 711; A speed adjusting unit housing 720 in which the vortex screw portion 711 is fitted and a serration groove 721 is formed therein; The serration protrusion 732 is formed on the outside to be engaged with the serration groove 721 of the speed adjusting part housing 720, and the vortex screw portion 711 of the adjusting part shaft 710 is inserted into the vertical movement. Vortex threaded portion 731 is formed so that the stepped portion (733) is formed in the center portion can be caught the curved threaded portion 711 of the adjustment shaft 710, the lower oil rod 752 below An adjustment unit shaft interlocking oil barrel 730 having a hole having a size that fits an outer diameter thereof; The oil rod is inserted into the adjustment shaft shaft oil barrel 730, the upper portion is tapered and hollow oil rod 752 is formed, the lower portion is the support 751 type, the support rod is formed in the center of the screw thread 751 in the center and the oil rod A hollow oil oil-discharger 750 having a larger diameter than the hollow of 752; The control shaft is inserted into the hollow inside of the oil oil-discharger 750, the upper portion is a projection 756 shape, the thread 754 is formed below the projection 756 and the rubber packing 753 is fitted to the central portion ( 760 and a speed regulating device 770 composed of a control valve 761 under the control shaft 760.

In addition, the upper portion of the fire door main body 200 in the present invention, the speed adjusting device of the first groove 210 and the speed control unit 700 corresponding to the intensity control by the protrusion groove 622 of the strength control unit 600. A corresponding second groove 220 may be formed to adjust the control valve 761 of 770.

FIG. 5A is a view showing a state where the fire door main body 200 of the present invention is closed, and FIG. 5B is a view showing a state where the main body 200 of the present invention is opened at 90 degrees.

In the safety fire door assembly 10 of the present invention, as shown in FIGS. 5A and 5B, a space 800 is disposed between the fire door body 200 and the fire door frame 100 to install a safety packing 900 to open and close the door. To ensure safety. The safety packing 900 is installed according to a conventional method, and FIG. 9 shows an example of the safety packing 900 used in the present invention.

Hereinafter, the operating relationship of the safety fire door assembly 10 of the present invention.

First, as shown in FIG. 2A, the upper hinge device 300 is installed on the fire door frame 100, and the automatic closure part 500 is firmly installed on one side of the fire door body 200 using the closure part connecting rod 510. This installation is done in the usual way.

Then, as shown in FIG. 2b, the fire door main body lower hinge 410 embedded in the fire door main body 200 is inserted into the lower hinge 400 shaft 401 installed under the fire door frame. At this time, if necessary, the washer 402 may be fitted to the shaft 401 to be used. Then, as shown in FIG. 4, the adjusting screw 314 of the upper hinge device 300 installed on the fire door frame 100 is adjusted so that the upper hinge shaft 317 of the bushing of the automatic door closer 500 of the upper fire door ( 511) is completely engaged and fixed to complete the assembly of the safety fire door assembly is built in the automatic door closer of the present invention.

Then, after completing other construction such as a door lock (not shown) of the fire door main body, the groove 622 of the adjusting part 620 inside the groove 521 of the upper portion of the closure part housing 520 embedded in the fire door main body 200. After adjusting the strength and strength, the fixing rod (not shown) is fixed to the groove 622 of the adjustment part through the groove 521 of the closure part housing 520 and the first groove 210 of the fire door main body 200. Let's do it. When the fixing rod is inserted as described above, the fixing rod is caught on one side of the groove 521 of the closure housing 520 so that it is no longer moved and the opening and closing force control of the fire door is maintained in a fixed state. This principle is similar to the principle of winding and winding the mainspring. This completes the adjustment of the door closing force of the safety fire door with the built-in door closer.

Then, the opening and closing speed control of the safety fire door of the present invention is to be through the control valve 761 of the speed control device 770 of the lower, by adjusting the speed control valve 761 interlocking oil barrel 730 Since the oil inside is introduced and discharged through the oil rod 752 of the oil oil / discharger 750, the hydraulic pressure in the control shaft interlocking oil barrel 730 is reduced and increased, so that the vortex type in the control shaft interlocking oil barrel 730 is increased. The screw thread 731 and the vortex thread 711 of the adjusting shaft 710 of the speed adjusting part 700 which moves up and down rotate differently according to the increase / decrease of the hydraulic pressure in the adjusting shaft interlocking oil barrel 730. Thus, the door closing speed of the fire door is controlled. This is achieved through the groove 525 of the closure housing 520, the groove 725 of the speed regulating housing 720, and the groove 755 of the oil oil / discharger 750. Since the control unit housing 720 and the oil oil · ejector is fixed integrally, the internal speed control unit interlocking oil barrel 730 is enabled because it rotates while moving up and down at a controlled speed.

When the door closing speed adjustment is completed as described above, the fire door closing speed of the safety fire door assembly of the present invention is closed at a regulated speed, and if necessary, the speed control valve comes out so that the speed of the fire door body can be easily adjusted by turning the valve. do.

After the above adjustment, the first groove 210 and the second groove 220 on the fire door main body 200 may be closed by an opening and closing mechanism.

As described above, the safety fire door assembly incorporating the automatic door closer of the present invention has a hinge device on the fire door frame, which not only has an excellent appearance, but also has a door opening and closing strength control unit and a door closing force control unit installed in the fire door body. It can be adjusted from the outside and can be easily adjusted if necessary, and the safety door is equipped on the fire door main body and the fire door frame to provide a safe fire door assembly without any problems for safety. Therefore, the safety fire door assembly with the automatic door closer of the present invention is not particularly installed in the apartment, etc., when the door is closed, the center of the fire door body itself is the door opening and closing than the normal apartment fire door using a pivot hinge or the like. It is easy and the outside does not have any other components other than the fire door itself, so that the aesthetics of the fire door itself can be decorated better and more aesthetically.

Claims (8)

A safety fire door assembly comprising a fire door frame and a fire door body, A fire door frame in which a hinge device is built in the upper part and a lower hinge is built in the lower part; A lower hinge hole into which the lower hinge of the fire door frame is inserted is formed, and a bushing portion into which the hinge shaft of the upper hinge is inserted is formed in the upper portion of the door closing strength adjustment unit and an automatic adjustment unit for adjusting the door closing force speed. A fire door body in which a door closer is built; And a safety packing device installed between the fire door frame side in which the hinge device is embedded and the fire door body. According to claim 1, The upper hinge device built into the fire door frame is a support having a hole on both sides, a hinge shaft inserted into the hole on one side of the support, connected to the support and surrounds the hinge shaft inside and one side is opened hinge Hinge shaft housing that can be inserted from the outside of the hinge shaft housing, the connecting rod is connected to the hinge shaft from the opening on one side of the hinge housing is connected to the adjustment screw that can be inserted into the other hole of the support, and the adjustment screw The connecting rod is formed with a circular hole on the connecting rod side, and the connecting rod connecting portion of the adjusting screw is formed in a sphere having a smaller diameter than the circular hole, and the upper connecting rod and the supporting rod are on both sides of the connecting rod. Safety door assembly with a built-in automatic door closer characterized in that it is fixed to the fixed portion with a play at. According to claim 1, The door closing strength adjustment portion closure portion is inserted into the closure portion housing is hollow inside; An adjustment part inserted into an upper portion of the closure axis and having an opening formed on one side thereof and a protrusion formed on a groove thereof; At least one fixing part formed integrally with the closure part side at the lower part of the closure part shaft and having an opening part at one side larger than the diameter of the closure part shaft; And a torsion spring, one end of which is fitted to the opening on the adjustment part and the other end of which is fitted to the opening of the lower fixing part. [4] The safety fire door assembly of claim 3, wherein a groove for externally adjusting the adjustment portion is formed at the upper portion of the housing of the adjustment portion to reach a protrusion formed with the groove of the adjustment portion. According to claim 1, wherein the speed adjusting portion of the automatic door closer portion extends from the closure shaft portion to the lower portion of the fixing portion of the closure shaft and the lower adjustment screw shaft formed; A speed regulating device having a serrated control valve on one side, a thread formed on an upper side of the control valve, a protrusion smaller than the diameter of the thread on the upper side of the control valve, and an adjusting shaft into which the rubber packing is inserted; The internal thread is formed in the inner center portion and the upper end of the lower support and the opening of the lower support and the tapered type at the end is formed in the inner central portion so that the thread on the adjusting shaft of the adjusting device can interlock Oil oil discharger consisting of oil rods; The lower portion is opened to the oil rod of the oil oil ejector, and the upper portion is composed of a curved thread type so that the thread of the adjustment shaft is vertically interlocked, and the adjustment shaft shaft interlocking oil barrel formed with a serration projection on the outside of the thread; The serration groove is formed so that the serration projection of the control shaft interlocking oil container is engaged, and an opening part and a lower part into which an adjusting part shaft can be inserted are inserted in the upper part so that the adjusting device can be interlocked. Safety fire door assembly with a built-in automatic door closer, characterized in that the speed adjustment housing is fitted to fit the serration projection of the oil reservoir interlocked with the adjustment shaft shaft. The safety fire door assembly according to claim 1, wherein the lower door hinge is formed of a plurality of hinge protrusions for height adjustment. The safety fire door assembly of claim 1, wherein a serration protrusion is formed in the hinge shaft, and a serration groove is formed in the bushing part. 4. The safety fire door assembly of claim 3, wherein a serration protrusion is formed on an upper portion of the closure shaft.

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