KR20130051562A - Door Closer - Google Patents

Door Closer Download PDF

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Publication number
KR20130051562A
KR20130051562A KR1020110116762A KR20110116762A KR20130051562A KR 20130051562 A KR20130051562 A KR 20130051562A KR 1020110116762 A KR1020110116762 A KR 1020110116762A KR 20110116762 A KR20110116762 A KR 20110116762A KR 20130051562 A KR20130051562 A KR 20130051562A
Authority
KR
South Korea
Prior art keywords
door
hydraulic line
ball valve
locking lever
fire
Prior art date
Application number
KR1020110116762A
Other languages
Korean (ko)
Inventor
김수엽
김승우
Original Assignee
김수엽
김승우
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김수엽, 김승우 filed Critical 김수엽
Priority to KR1020110116762A priority Critical patent/KR20130051562A/en
Publication of KR20130051562A publication Critical patent/KR20130051562A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors

Abstract

PURPOSE: A door closer is provided to close a door by restoring a hydraulic line in fire and to fix the door to a random position in the opened state of the door. CONSTITUTION: A door closer comprises a closer(10), a unidirectional ball valve(30), a locking lever(40), and an actuating unit. The closer comprises a hydraulic line(11) which pumps oil through a piston(20). The unidirectional ball valve is installed in the hydraulic line and is elastically supported by a spring(31). The locking lever is installed for pulling the ball valve. The actuating unit moves the locking lever back and forth.

Description

Door Closer {omitted}

The present invention relates to a door closer, and more particularly, to a door closer having a stop function for fixing the position of the door and an opening and closing function for closing the door in case of fire.

In general, the closure is installed in the door to open the door by applying an external force to move the piston to compress the spring and to remove the external force is configured to automatically close the door by the compressed spring. At this time, the hydraulic pressure acts on the piston to control the speed at which the door is closed.

However, in the case of the porch, the door must be stopped in an open state, but the closure cannot stop the door in the open state, as shown in FIG. There was a problem to be done.

On the other hand, in the case of a fire door, it is necessary to install an opening and closing device that can automatically close the door in case of fire.

The problem to be solved by the present invention is to provide a door closer having a locking means that can be fixed to any position in the open state by installing a means for blocking the hydraulic line of the closure.

Another object of the present invention is to provide a door closer for closing the door by restoring the hydraulic line in case of fire.

An object of the present invention is a closure having a hydraulic line in which oil is pumped by the piston; A one-way ball valve installed elastically on the hydraulic line by a spring; A locking lever elastically supported by a spring and installed to push the ball valve; It is achieved by a door closer including a; operating means for moving the lock lever 40 forward and backward.

Another object of the present invention is achieved by a door closer further comprising; opening and closing means connected to the operating means to open the hydraulic line by retracting the lock lever in case of fire.

According to the present invention, when the lock lever is placed at the hydraulic line blocking position while the door is opened, the ball valve blocks the hydraulic line so that the position of the door is fixed and the door is locked when the hydraulic line is blocked while the door is closed. When opening the hydraulic line by pushing the ball valve by the locking lever, the door can be opened and closed freely, so there is no need for a separate brace leg and door locking device. It is an invention that has the effect of being able to meet the fire law even when used in a fire door (fire door) by being automatically closed by the hydraulic pressure.

1 is a view showing a door installed with a conventional brace
2 is a perspective view of the present invention
Figure 3 is a cross-
4 is a sectional view of principal parts of a first embodiment showing an actuating means of the present invention;
5 is a sectional view of principal parts of a second embodiment showing the actuating means of the present invention;
Figure 6 is a perspective view showing a third embodiment showing the operating means of the present invention
Figure 7 is a perspective view showing a state in which the wire of the shape memory alloy material is installed in the third embodiment as an opening and closing means of the present invention
Figure 8 is a cross-sectional view showing a state in which the lock lever is operated by the opening and closing means of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Detailed description for carrying out the present invention will be described below with reference to the accompanying drawings.

The present invention includes a closer (10) having a hydraulic line (11) to which oil is pumped by a piston (20) as shown in FIGS. A one-way ball valve 30 installed to be elastically supported by the spring 31 on the hydraulic line 11; A locking lever 40 installed to push the ball valve 30; It relates to a door closer comprising a; the operating means for moving the lock lever 40 forward and backward.

The closure 10 is a pinion 12 that rotates as the door (not shown) is opened and closed, the rack 21 of the piston 20 is engaged, and when the piston 20 moves, the interior of the closure 10 is closed. Oil is to be pumped through the hydraulic line (11). The hydraulic line 11 is provided with a control opening 13 for determining the speed at which the door is opened and closed by adjusting the amount of oil that can be pumped.

The piston 20 is provided with an adjusting needle 22 inserted into the hydraulic line 11 so that the speed can be slowed down by adjusting the amount of oil pumped to the hydraulic line 11 when the door is almost closed. desirable.

Fig. 4 is a view of the first embodiment showing the actuation means, which includes a threaded portion 41 formed on the locking lever 40 as shown; It consists of a screw hole (11a) formed in the hydraulic line (11).

FIG. 5 is a view of the second embodiment showing the actuation means, which is a solenoid 43 connected to the lock lever 40 and actuated by an electrical signal as shown in the drawing.

Figure 6 is a view of the third embodiment showing the operating means, which as shown in the inclined portion 51 is formed on one side fixed member 50 is fixed to the outside of the hydraulic line (11); An inclined groove 61 corresponding to the inclined portion 51 is formed on one surface and is fixed to the lock lever 40; It is composed of a spring (42) installed to elastically support the operating member (60).

Since the spring 42 has a larger elastic force than the spring 31 supporting the ball valve 30, the locking lever 40 is provided by the spring 41 in a state in which the inclined portion 51 is fitted in the inclined groove 61. By pushing the ball valve 30 to maintain the hydraulic line 11 is open. In this state, when the locking lever 40 is rotated, the inclined groove 61 is moved along the inclined portion 51 of the fixing member 50, so that the locking lever 40 is retracted and thus the elastic force of the spring 31 is followed. The hydraulic line 11 is interrupted by acting on the ball valve 30.

The door closer of the present invention made as described above further includes an opening and closing means for retracting the locking lever 40 in case of fire so that the hydraulic line 11 is opened, so that the door can be automatically closed in case of fire. This can be used as an automatic opening and closing device of the fire door (fire door).

The opening and closing means may use a solenoid 43 installed to advance the lock lever 40 by the detection signal of the fire detection sensor 44 to open the hydraulic line 11. The fire detection sensor 44 is a known one that detects temperature or smoke, and may be used by connecting the solenoid 43 to the solenoid 43 provided in the closure 10 or installed in a building.

FIG. 7 is a view showing a state in which a shape memory alloy wire 45 is operated at a temperature set by the opening and closing means. As shown, one side of the shape memory alloy wire 45 is one of the operating members. The hydraulic line 11 is opened by rotating the operating member 60 when connected to the 60 and the other side is connected to the closure 10 to reach the set temperature. It is believed that the shape memory alloy wire 45 is preferably manufactured to operate when heated to 40 ° C. due to fire.

It is a matter of course that the shape memory alloy wire 45 may be operated by applying power by the detection signal of the fire detection sensor 44 to generate heat.

In the present invention as described above, when the hydraulic lever 11 is opened by pushing the ball valve 30 by moving the lock lever 40 forward, the pressure feeding action of the oil by the piston 20 is conventional. By being made the same as the door closer of the means that the person can freely enter through the door.

In this state, when the locking lever 40 is retracted by using the operating means, the ball valve 30 blocks the hydraulic line 11 by the elastic force of the spring 31 as shown in FIG. 8. The blocking of the hydraulic line 11 by the ball valve 30 means that the position of the door is fixed even when an external force is applied.

That is, when the hydraulic line 11 is blocked by the ball valve 30 while the door is closed, the door closer of the present invention functions as a locking device, and the hydraulic line 11 is blocked when the door is opened. The ball valve 30 is to function as a conventional support leg (b).

The door in which the closer 10 of the present invention is installed is normally retracted by the operating lever in the state of being opened to freely enter and exit the locking lever 40 to block the hydraulic line 11 so that the position of the door is fixed. do.

When a fire occurs in this state and the fire detection sensor 44 outputs a detection signal, power is applied to the solenoid 43 or the shape memory alloy wire 45, and accordingly, the lock lever 40 is connected to the ball valve 30. By pushing), the hydraulic line 11 is opened so that the door is automatically closed by hydraulic pressure.

When the temperature of the shape memory alloy wire 45 of the present invention is properly set, even if there is no fire detection sensor 44 that requires a separate power supply, when the temperature reaches the set value by the fire the operating member 50 is rotated and accordingly the inclined groove 61 is moved along the inclined portion 51 of the fixing member 50, the locking lever 40 is retracted so that the elastic force of the spring 31 is the ball valve 30 ), The hydraulic line 11 is cut off and the door is automatically closed. That is, the shape memory alloy wire 45 may be an opening and closing means.

Therefore, when the opening and closing means for operating the operation means in the case of fire is added that the door is installed in the door can be recognized that the automatic opening and closing device specified in the fire law even if used as a fire door.

Thus, in the present invention, when the lock lever 40 is placed at the cutoff position of the hydraulic line 11 in the state of opening the door, the ball valve 30 blocks the hydraulic line 11 to fix the position of the door. When the hydraulic line 11 is closed in the closed state, the door is locked, and when the ball valve 30 is opened by the locking lever 40 to open the hydraulic line 11, the door is opened and closed freely. Unlike the need for a separate brace leg and door locking device, in case of fire, the door in the fixed position is automatically closed by hydraulic pressure as the hydraulic line 11 is opened, so even if used for a fire door (fire door) It is to meet the law.

10: Closer 11: Hydraulic Line
20: piston 30: ball valve
31,42: spring 40: locking lever

Claims (7)

A closer (10) having a hydraulic line (11) through which oil is pumped by the piston (20); A one-way ball valve 30 installed to be elastically supported by the spring 31 on the hydraulic line 11; A locking lever 40 installed to push the ball valve 30; And closing means for moving the locking lever (40) forward and backward. The method according to claim 1, wherein the operating means, the threaded portion 41 formed on the locking lever 40; And a screw hole (11a) formed in the hydraulic line (11). The door closer according to claim 1, wherein the actuating means is a solenoid (43) connected to the lock lever (40) and operated by an electrical signal. The door closer of claim 3, wherein the solenoid is operated by a detection signal of a fire detection sensor to move the lock lever 40 forward and backward. The method of claim 1, wherein the operating means, the inclined portion 51 is formed on one side fixed member 50 is fixed to the outside of the hydraulic line (11); An inclined groove 61 corresponding to the inclined portion 51 is formed on one surface and is fixed to the lock lever 40; And a spring (42) installed to elastically support the operating member (60). The method of claim 5, wherein one of the shape memory alloy wire 45 is connected to the operating member 60 and the other is connected to the closure 10 to reach the set temperature to the operating member 60 A door closer, characterized in that for rotating. The door closer according to claim 6, wherein power is applied to the wire (45) of the shape memory alloy material by the detection signal of the fire detection sensor (44) to rotate the operation member (60).
KR1020110116762A 2011-11-10 2011-11-10 Door Closer KR20130051562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110116762A KR20130051562A (en) 2011-11-10 2011-11-10 Door Closer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110116762A KR20130051562A (en) 2011-11-10 2011-11-10 Door Closer

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020130019576A Division KR20130051962A (en) 2013-02-25 2013-02-25 Door Closer

Publications (1)

Publication Number Publication Date
KR20130051562A true KR20130051562A (en) 2013-05-21

Family

ID=48661475

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110116762A KR20130051562A (en) 2011-11-10 2011-11-10 Door Closer

Country Status (1)

Country Link
KR (1) KR20130051562A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010605U1 (en) 2013-05-07 2016-02-18 Lg Chem, Ltd. Cable-type secondary battery
CN109138725A (en) * 2018-09-30 2019-01-04 王升级 Door closer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010605U1 (en) 2013-05-07 2016-02-18 Lg Chem, Ltd. Cable-type secondary battery
CN109138725A (en) * 2018-09-30 2019-01-04 王升级 Door closer

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