KR200338187Y1 - The device hang on door-closer for prevention of fire - Google Patents

Abstract

The present invention is equipped with a spur gear rotator and a gear that the guide jaw is formed in a half arc shape along the circumference of one side in the door locking device installed between the arm and the door frame of the door closer and the sensing projection is also formed in the half arc shape on the outer circumferential surface. It is provided with a motor, when detecting a toxic gas in the event of a fire is quickly switched to the locked state of the arm to close the door to the door locking device of the fire door door closer for blocking the toxic gas. To this end, a rectangular guide 14 is formed at the other side, and the insertion tube 15 and the rotating tube 16 are integrally embedded and formed therein; A semi-arc shaped guide jaw 31 is formed along one side of the circumference, and the sensing protrusion 32 is also protruded into a half arc shape on the outer circumferential surface, and the spur gear rotating hole 30 in which the circular insertion groove 38 is recessed on the other side. )Wow; A thrust bearing (34) inserted into the insertion groove (38) of the spur gear rotating hole (30) and supported by the guide cover (37); A motor 40 to which the motor gear 41 is mounted; A fixing piece 50 having a tooth portion formed at a lower end thereof, and a fixing hole 51 formed at a center thereof; An arm 60 having a semicircular engaging groove 61 formed at an end thereof; The control unit 80 is attached to the detection sensor 82 and the guide 81; when the fire occurs, toxic gas is detected by the smoke detection sensor to drive the motor 40 through the control unit 80 motor gear As the 41 rotates, the spur gear rotating part 30 is rotated, and the ball 21 'is rolled along one side circumference of the spur gear rotating part 30 which is rotated 180 degrees so that the ball is positioned on the guide jaw 31. When the ball 21 'is positioned at the opposite side without the jaw, the ball 21', the housing 23, the spring 22, and the ball 21 are pushed backwards in order and the locking groove 61 of the arm 60 is moved. And the ball 21 in the insertion tube 15 is in a locked state is to close the door.

Description

The door hanger of the door closer for smoke detection fire protection {The device hang on door-closer for prevention of fire}

The present invention relates to a door latching device of a door closer for smoke detection fire prevention, and more particularly, a guide jaw is formed in a half arc shape along one side circumference of the door locking device installed between the arm and the door frame of the door closer and the outer peripheral surface The sensing protrusion is equipped with a spur gear rotating hole and a gear-mounted motor, which also protrude in a half arc shape, and when a toxic gas is detected in the event of a fire, the arm is quickly caught into a locked state to close the door to shut off the toxic gas. A door locking device for a fire door closer.

In relation to the door locking device of the fire door closer, the present applicant has already applied for a number of utility models and patents. A door locking device that automatically closes the door when the smoke is detected by fire by using a motor and a spur gear bolt that has been fired. In Utility Model Registration Application No. 20-2003-0023989, a rack gear is formed to catch and catch the door. And a shaft equipped with a bearing and a motor equipped with a gear are provided with a door locking device that automatically closes the door upon detecting smoke during fire prevention. In Utility Model Application No. 20-2003-0024385, a cylindrical arm is inserted into one side of a cylindrical arm. The built-in ball is engaged with the catch groove of the sintered plate inserted into the operation part of the main body, so that the door is caught and caught. In the Utility Model Registration Application No. 20-2003-0031049, a spur gear, in which a guide groove is formed in a semicircular shape on one side and a bearing is inserted and mounted in the center, is coupled to the main body by a thrust bearing and a support bolt, It has been proposed a door locking device that is provided with a motor that rotates in engagement with the gear is engaged with the door.

The present invention is different from the above-mentioned first application door locking devices, the guide jaw is formed in a half arc shape along one side circumference to the inside of the main body, and a spur gear rotating hole is formed in the outer circumferential surface of which the sensing protrusion is also formed in the half arc shape, and the spur gear As a device capable of locking and catching the door by rotating the rotary device 180˚, details are as follows.

An object of the present invention is a door locking device, a spur gear rotating hole in which a guide jaw is formed in a half arc shape along one side circumference and a sensing protrusion is also formed in a half arc shape on an outer circumferential surface of a thrust bearing and a guide cover. The motor is equipped with a built-in bolt coupled to the body and equipped with a gear and a control unit. When toxic gas is generated in the event of fire, the motor is driven through the control unit when toxic gas is detected by the smoke sensor. As the spur gear of the gear and the spur gear rotor are engaged with each other to rotate, as the spur gear rotor rotates, the ball in the door locking device is pushed back beyond the semi-circular guide jaw formed along the circumference of one side, and the arm is locked. To close the door to quickly and easily shut off toxic gases, preventing smoke Provided is a door locking device for a fire door closer.

1 is an exploded perspective view according to the present invention

2 is a partial perspective view according to the present invention

Figure 3a is a state of engagement of the spur gear rotating ball and the ball when the door locking device according to the present invention

Figure 3b is a state in which the spur gear rotating hole and the ball when the state of the door latch lock device according to the present invention

Figure 4a is a cross-sectional configuration of the locked state of the door locking device according to the present invention

Figure 4b is a cross-sectional configuration of the locked state of the door locking device according to the present invention

Figure 4c is a longitudinal cross-sectional configuration of the locked state of the door locking device according to the present invention

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

10: main body 11: operating part

12: tooth part 13: coupling hole

14 guide 15 insertion tube

16: rotary tube 17, 17 ': bolt hole

21, 21 ': ball

22: spring 23: housing

30: spur gear rotator 31: guide jaw

32: sensing protrusion 33: linear bush

34: thrust bearing 35, 35 ': ball guide

36: ball cloud 37: guide cover

38, 38 ': Insertion groove 39: Bolt

40: motor 41: motor gear

50: fixing piece 51: fixing hole

60: arm 61: locking groove

62: support ball 71: coupling bolt

72: coupling nut 80: control unit

81: guide 82: detection sensor

With reference to the accompanying drawings the configuration of the present invention for achieving the object as described above.

Figure 1 is an exploded perspective view according to the present invention, Figure 2 is a partially exploded perspective view, Figure 3a is a state of locking the sputter gear and the ball when the door locking device is locked, Figure 3b when the door locking device is locked. Fig. 4A is a locked state cross-sectional view of the door locking device, Fig. 4B is a closed state cross-sectional view, and Fig. 4C is a closed state longitudinal cross-sectional view.

Looking at the configuration of the present invention as shown in Figures 1 to 2, along the circumference of one outer peripheral surface ' '11 is formed in the operation portion 11 is formed, the tooth portion 12 is formed on one side of the top surface and the other side of the rectangular guide 14 is formed integrally therein the insertion tube 15 and the rotating tube ( 16 is a main body 10 having a jaw and integrally formed; A semi-arc shaped guide jaw 31 is formed along one side of the circumference, and the sensing protrusion 32 is also protruded into a half arc shape on the outer circumferential surface, and the spur gear rotating hole 30 in which the circular insertion groove 38 is recessed on the other side. )Wow; A thrust bearing (34) inserted into the insertion groove (38) of the spur gear rotating hole (30) and supported by the guide cover (37); A motor 40 to which the motor gear 41 is mounted; A fixing piece 50 having a tooth portion formed at a lower end thereof, and a fixing hole 51 formed at a center thereof; An arm 60 having a semicircular engaging groove 61 formed at an end thereof; It consists of a control unit 80, the detection sensor 82 and the guide 81 is attached.

In the above, along the circumference of the outer peripheral surface of one side of the body 10 ' An arm 60 having a semicircular locking groove 61 is inserted into the operation part 11 which is recessed in a 'shape, and the rotary tube 16 is formed in the rectangular guide 14 integrally formed on the other side of the main body 10. ) Is formed, the rotary tube 16 is bordered by the insertion tube 15 and the jaw is formed integrally into the body. First, a ball 21, a spring 22, a housing 23, a ball 21 'are sequentially inserted into the insertion tube 15, and a bush 33 and one side circumference are inserted into the rotary tube 16. A semi-arc guide jaw 31 is formed along the spur gear rotating hole 30 is inserted into the insertion tube (15) is inserted into the insertion tube 15 is a half arc-shaped sensing projection 32 protrudes along the outer peripheral surface ) Is used for the locking operation or the locking operation with the locking groove 61 in the operation portion 11 and the other ball 21 'is placed on the guide jaw 31 of the spur gear rotating hole 30 and the half arc shape. The housing 23, which is inserted between the spring 22 and the ball 21 ', is used to minimize the friction of the ball 21' and to load the door. It can be easily moved even under the state that the ball (21 ') to smoothly move.

In the above, when the half arc-shaped guide jaw 31 protrudes along one side circumference and the half arc-shaped sensing protrusion 32 protrudes along the outer circumference, the spur gear rotating hole 30 is smoothly inserted into the rotary tube 16. The linear bush 33 is inserted to be positioned at the end of the rotary tube 16 for rotation.

In addition, the other side of the spur gear rotary hole 30 is inserted into the rotary tube 16 formed on the guide 14 is inserted into the groove 38 in a circular shape and the insertion groove 38 as a thrust bearing ( One side ball guide hole 35 of 34 is inserted and the other side ball guide hole 35 of the thrust bearing 34 is inserted into a circular insertion groove 38 'formed by being dug on one side of the guide cover 37. The thrust bearing 34 has a structure in which the guide cover 37 and the guide 14 are supported and fixed as the bolt 39 is assembled.

At this time, the insertion tube 15 and the rotating tube 16 has a jaw formed in the middle and is integrally formed in the main body 10. The diameter of the rotating tube 16 is twice larger than the diameter of the insertion tube 15. Insertion tube so that the ball 21 'in the insertion tube 15 is moved along the circumference of one side of the spur gear rotating hole 30 when the spur gear rotating hole 30 inserted into the rotating tube 16 is rotated. It is preferable that 15 is attached to one side of the outer peripheral surface of the rotary tube 16.

In addition, a thrust bearing (34) inserted between the spur gear rotating hole (30) and the guide cover (37) is a bearing that is already widely used with a ball cloud sphere (82) having balls therebetween. Two ball guides (81, 83) is formed in a structure that supports the two sides have a minimum resistance under the load in the axial direction is very suitable for movement with a large load, such as door closers.

In addition, the motor 40 on which the motor gear 41 is mounted is mounted on one side of the lower end of the other side main body, and the controller 80 is mounted on the other end of the lower end, and is attached to the guide 81 of the controller 80. The sensor 82 is configured to detect rotation of the spur gear rotating unit 30 by detecting the sensing protrusion 32 protruding in an arc shape on the outer circumferential surface of the spur gear rotating unit 30.

After fixing the lower teeth (not shown) of the lower end of the fixing piece 30 to the teeth 12 formed on the upper surface of the main body 10, the coupling bolt 71 is a coupling hole 13 of the main body 10 ) And the support hole 62 of the arm 60, the fixing hole 31 of the fixing piece 30 is inserted through and fastened in turn, and then closed with a coupling nut 71 to be supported and fixed in duplicate.

Looking at the door locking state of the door locking device having the structure as described above as shown in Figure 3a to 4c in the operating portion 11 of the main body 10 in the locking groove 61 and the insertion tube of the arm (60) ( 15, the ball 21 is engaged with each other and the ball 21 'of the other side is located on the guide jaw 31 of the spur gear rotation hole 30, a fire occurs and toxic gas is detected by the smoke sensor When the motor 40 is driven through the control unit 80, the door locking device is switched to the door locking release state. Looking at the door locking release state, the motor gear 41 rotates to rotate the spur gear rotating unit 30. When the ball 21 'is rolled along one side circumference of the spur gear rotating part 30 rotated 180 degrees, the ball 21' positioned on the guide jaw 31 is located at the opposite side without the jaw. (21 '), the housing 23, the spring 22, the ball 21 is pushed back in order to the engaging groove of the arm ( 61 and the ball 21 in the insertion tube 15 is in a locked state.

Looking at the operation of the door locking device according to the present invention, when toxic gas is generated when the fire is detected in the smoke detection sensor and sensor control unit, the sensor control unit sends a signal to the control unit 80 and the control unit 80 When the motor 40 is driven by receiving a signal and the motor 40 is driven, the motor gear 41 mounted on the motor 40 rotates, and the spur gear rotating hole engaged with the motor gear 41 ( 30 is also rotated so that the ball 21 'is rolled away from the guide jaw 31 formed on one side circumference of the spur gear rotating hole 30, the ball 21', the housing 23, When the spring 22 and the ball 21 are pushed backward, the locking groove 61 and the ball 21 of the arm 60 are locked and the door is closed. When the door is locked, the half arc-shaped sensing protrusion 32 formed on the outer circumferential surface of the spur gear rotating hole 30 comes into contact with the sensing sensor 82 of the controller 80 and receives a signal from the controller 80. When the drive of the motor 40 is stopped and reset in the initialization step, when the door locking setting button (not shown) is pressed, the motor 40 is driven again to mount the motor gear 41 mounted on the motor 40. Is rotated and the spur gear rotary hole 30 engaged with the motor gear 41 is also rotated so that the ball 21 'is guide duct 31 formed on one side circumference of the spur gear rotary hole 30. As the ball 21 ', the housing 23, the spring 22, and the ball 21 move forward, the locking groove 61 and the ball 21 of the arm 60 become locked, and the door Is formed in the outer circumferential surface of the spur gear rotating hole 30 when the lock state is locked is the detection sensor 82 of the control unit 80 and When contacted again and receiving a signal, the controller 80 stops driving the motor 40. At this time, the motor 40 can be converted into a locked or locked state only by driving in one direction, not in forward and reverse driving.

The present invention described above is a spur gear rotating tool in which a guide jaw 31 is formed in a half arc shape along one circumference and a sensing protrusion 32 also protrudes in a half arc shape along one circumference as a means for locking and catching the door. The thrust bearing 34 and the guide cover 37 and the bolt 39 are embedded in the main body and used to be coupled to each other. In the case of the spur gear rotating hole 30, the present invention belongs to the present invention. Those skilled in the art are not limited to the accompanying drawings as various substitutions and modifications are possible without departing from the technical spirit of the present invention.

As described above, the door locking device of the smoke-detecting fire door closer according to the present invention is mounted on the other side of the main body is equipped with a spur gear rotating hole formed with a semi-circular guide jaw along the circumference and the ball is the guide jaw By rotating along the circumference of the guide jaw when the position is located on the guide jaw, when located on the flat circumference of the opposite side of the guide jaw release operation is toxic gas in the event of fire is detected by the smoke detection sensor through the controller When the motor is driven and the spur gear rotor rotates by being engaged with the motor gear of the motor and the ball rolls out of the guide jaw formed on one side of the spur gear rotor, the ball, the spring and the housing are pushed backward and the arm is caught. As the grooves and balls catch quickly, the doors can be closed to quickly and easily shut off toxic gases, preventing large casualties. There is an advantage to that.

Claims (3)

Along the circumference of the outer peripheral surface of one side of the main body 10 is coupled to the fixing piece 50 and the coupling bolt 71 is formed with a tooth portion 12 on one side upper end ' An arm 60 having a semicircular locking groove 61 is inserted into the operation part 11 that is recessed in the shape of ', so that the ball 14 and the locking groove 61 are caught and released within the operation part 11. In the door lock device of the door closer is possible, the motor 40 is mounted on the bottom surface is provided with a motor 40; A rectangular guide 14 is integrally formed on the other side of the main body 10, and the rotary tube 16 formed on the guide 14 has an insertion tube 15 attached to one side of the outer circumferential surface of the rotary tube 16. It is formed and built in, the insertion tube 15 is inserted into the ball 21, the spring 22, the housing 23, the ball 21 'in turn and the rotary tube 16 to the bush 33 The thrust bearing is inserted into the spur gear rotary hole 30 and the insertion groove 38 formed on the other side of the spur gear rotary hole 30 and the insertion groove 38 'formed on one side of the guide cover 37. 34 is inserted and fixed to the main body 10 as the guide cover 37 and the guide 14 are assembled by bolts 39, and the spur gear rotating holes 30 are mutually connected with the motor gear 41. Door latching device of the smoke detection fire door closer characterized in that the structure is made to rotate. The method of claim 1, One side surface of the spur gear rotating hole 30 is formed with a half arc guide jaw 31 protrudes along one side circumference, so that the ball 21 'is a half arc guide guide jaw as the spur gear rotating hole 30 rotates. 31) The door locking device of the smoke-detecting fire door closer characterized in that the structure is made to roll along the circumference of the one side protruding. The method of claim 1, The sensor 82 on the control unit 80 coupled to the other side of the lower end of the main body 10 protrudes along the outer circumferential surface of the spur gear rotating hole 30 mounted as a means for detecting the position of the spur gear rotating hole 30. It is coupled and fixed to contact the formed half arc-shaped sensing projection 32, to detect the door locking setting position and the door locking position of the spur gear rotating hole 30 to control the rotation of the spur gear rotating hole (30). Door latching device for smoke detection fire door closer comprising a structure that can