KR200338171Y1 - The device hang on door-closer for prevention of fire - Google Patents

Abstract

The present invention relates to a door latching device of a door closer for smoke localization, wherein a semicircular guide groove is formed at one side, and a spur gear and a motor are inserted and mounted at the center of the arm to generate toxic gas in case of fire. It is a door locking device to close the door by canceling the locking state of the door.

To do this, follow the circumference of one side 'Operating part 11 is formed in a shape is formed and the toothed part 12 is formed on one side of the top surface, the other side' A main body 10 having an insertion guide 15, a fixed tube 16, and a through hole 17 formed therein; A spur having a semicircular guide groove 32 formed on one side and a bearing 31 is inserted and mounted at the center thereof and fixed to the fixing tube 16 by a thrust bearing 80 and a support bolt 34. A gear 30; A motor (42) protruding from the other side to penetrate the through hole (17) and then fitted with a motor gear (41) to be mounted to the main body (10); A fixing piece 50; Arm 60 having a semicircular engaging groove 61 formed at the end; when the smoke is detected in a fire, the controller receives a signal from the controller and rotates the motor gear 41 and the spur gear 30 to rotate the ball 21 '. ) Is placed in the guide groove 32, the ball 21, the spring 22, the housing 23 is pushed back, the ball 21 and the locking groove 61 is caught and close the door to close the toxic gas It is door latching device of door closer for smoke localization which can prevent large catastrophe by blocking.

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 locking device of a smoke detection door closer for fire protection, and more particularly, a guide groove is formed in a semicircular shape on a door locking device connected between an arm and a door frame of a door closer, and a bearing is located at the center. A sputter gear and a motor equipped with gears are provided so that if a toxic gas is detected in the event of a fire, the arm is locked to the arm quickly and closes the door to shut off the toxic gas. It is about.

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. Uh bar has presented an engaging device.

The present invention is different from the above-mentioned application door locking devices, the spur gear is formed in a semi-circular guide groove on one side and the bearing is inserted and mounted in the center is coupled to the main body by a thrust bearing and a support bolt, the spur It is a door locking device that is equipped with a motor that rotates in engagement with a gear to lock and lock the door. Unlike prior applications, the device can be locked and locked by only 180 ° rotation of the spur gear. same.

The purpose of the present invention is a motor in which a spur gear, in which a guide groove is formed in a semicircular shape on one side of the door locking device, and a bearing is inserted and mounted at the center thereof, is coupled to the main body by a thrust bearing and a support bolt and the gear is mounted. And a control unit is provided, when toxic gas is generated in case of fire, when the toxic gas is detected by the smoke sensor, the motor is driven through the control unit, and when the motor is driven, the motor gear and the spur gear are engaged with each other to rotate the spur gear. A semi-circular guide groove formed on the side of the door stops the jamming state of the arm as it pushes the ball in the door locking device and closes the door to shut off the toxic gas quickly and easily, thereby preventing large casualties. It is to provide a door locking device of the closure.

1 is an exploded perspective view according to the present invention

2 is a partial perspective view according to the present invention

3 is a partially assembled perspective view according to the present invention

4 is an assembly view of the spur gear of the door locking device according to the present invention

Figure 5a is a locking state of the spur gear and the ball when the locking state of the door locking device according to the present invention

5b is a state in which the spur gear and the ball are locked when the door is locked by the present invention;

Figure 6a is a cross-sectional configuration of the locked state of the door locking device according to the present invention

Figure 6b is a cross-sectional configuration of the locked state of the door locking device according to the present invention

6c is a longitudinal cross-sectional configuration of the locking 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: fixed tube 17: through hole

18, 18 ': Bolt 21, 21': Ball

22: spring 23: housing

30: spur gear 31: bearing

32: Information Home 33: Washer

34: support bolt 40: motor

41: motor gear 42: shaft

50: fixing piece 51: fixing hole

60: arm 61: locking groove

62: support ball 71: coupling bolt

72: coupling nut 80: thrust bearing

81, 83: ball guide 82: ball cloud ball

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 3 is a partially assembled perspective view, Figure 4 is an assembly view of the spur gear, Figure 5a of the spur gear and the ball when the latching state of the door locking device Figure 5b is a state of locking the spur gear and the ball when the latching state of the door locking device, Figure 6a is a cross-sectional configuration of the locking state of the door locking device, Figure 6b is a cross-sectional configuration of the door locking device Figure 6c is a longitudinal cross-sectional view of the locked state of the door locking device.

Looking at the configuration of the present invention as shown in Figures 1 to 3, along the circumference of one outer peripheral surface ' 'Operating part 11 is formed in a shape is formed and the toothed part 12 is formed on one side of the top surface, the other side' A main body 10 having an insertion guide 15, a fixed tube 16, and a through hole 17 formed therein; Semi-circular guide groove 32 is formed in one side, the bearing 31 is inserted and mounted at the center and the spur gear 30 is fixed to the fixed tube by a thrust bearing (80) and the support bolt 34 )Wow; A shaft (40) protruding to the other side and passing through the through hole (17), the motor (41) is assembled and fastened to the motor (40) mounted on the main body (10); 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.

In the above, along the circumference of the outer peripheral surface of one side of the body 10 ' 'An arm 60 formed with a semicircular locking groove 61 is inserted into the operation part 11 that is recessed in a shape, and is coupled to the other side of the main body 10'. 'Shape guide 14 is assembled to the main body 10 by bolts and bolt holes (18, 18') and the ball 21 and the spring ( 22, the housing 23, and then the ball 21 'is inserted in sequence, one side of the ball 21 is used for the locking operation or the locking operation with the locking groove 61 in the operating portion (11) The ball 21 'of the other side is used for the locking operation or the locking operation of the door while being moved on the semicircular guide groove 32 of the spur gear 30. In the above, the housing 23 inserted between the spring 22 and the ball 21 'minimizes rolling friction of the ball 21' and can be easily moved even under a large load. It is to make the movement smooth.

In the fixed tube 16 located next to the insertion tube 15 formed on the guide 14, a washer 33 and a semicircular guide groove 32 are formed on one side, and a bearing 31 is inserted and bonded at the center thereof. Spur gear 30 is fastened and mounted, the thrust ball is mounted between the two ball guides (81, 83) and the two ball guides (81, 83) ball ball sphere (82) The bearing (80) and the support bolts 34 are sequentially inserted and fixed, where the position of the fixing tube 16 is the ball 21 'in the insertion tube 15 is the spur gear 30 The circumference of the guide groove 32 formed on one side of the guide groove 32 is preferably adjusted to be positioned so as to match the width of the formed. Further, in the above, as shown in FIG. 4, the bearing 31 is inserted and mounted in the center of the spur gear 30 to allow the spur gear 30 to rotate itself. 33 is formed in a structure that is supported on one side so that the inner ring of the bearing 31 is fixed when the spur gear 30 is rotated, and only the outer ring of the bearing 31 integrated with the spur gear 30 is rotated. In addition, a thrust bearing 80 inserted between the spur gear 30 and the support bolt 34 is a bearing that is widely used, and has two ball-cloud spheres 82 therebetween. Since the ball guides 81 and 83 are formed to support the sides, they have a minimum resistance under the axial load, and are therefore well suited to movements with large loads such as door closers.

And the motor 40 protruding the shaft 42 to the other side is' The motor gear 41 is fitted to the main body 10 so that the shaft 42 penetrates through the through hole 17 formed in the lower portion of the 'shaped guide 14' and then engages with the spur gear 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 5a to 6c 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 balls 21 are engaged with each other and the balls 21 'on the other side are in contact with a plane where the guide grooves 32 of the spur gear 20 are not formed. A fire occurs and toxic gas is detected. When the motor 40 is driven through a control unit (not shown) by the sensor, 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 spur gear 30. The ball 21 'is rolled along the circumference of one side of the spur gear 30 to be rotated and positioned in the guide groove 32, so that the ball 21', the housing 23, and the spring 22 are rotated. As the balls 21 are pushed backwards in sequence, the catching groove 61 of the arm 60 and the balls 21 in the insertion tube 15 Rim will terminate that status.

Looking at the operation of the door locking device according to the present invention, when toxic gas is generated in the case of a fire, if smoke is detected in the smoke detection sensor and sensor control unit, the sensor control unit sends a signal to the control unit (not shown) and the control unit sends a signal When the motor 40 is driven and the motor 40 is driven, the motor gear 41 mounted on the motor 40 rotates, and the spur gear 30 meshed with the motor gear 41 also rotates. Since the ball 21 'is rolled into the guide groove 32 formed on one side of the spur gear 30, the ball 21', the housing 23, the spring 22, the ball 21 is pushed back When the locking groove 61 and the ball 21 of the arm 60 is caught, the door is closed.

The present invention described above is a semicircular guide groove 32 is formed on one side as a means for locking and locking the door, and the bearing 31 is inserted and bonded in the center, and the thrust bearing (thrust bearing) ( 80 and the spur gear 30 coupled to the main body by the support bolt 34 and the motor gear 41 fitted to the shaft 42 of the motor 40 are used, but in the case of the spur gear 30 described above. As those skilled in the art to which the present invention pertains can make various substitutions and modifications without departing from the technical spirit of the present invention, the present invention is not limited to the accompanying drawings.

As described above, the door locking device of the smoke-detecting fire door closer according to the present invention is equipped with a spur gear having a semicircular guide groove formed on one side to the other side of the main body, and the ball moves along the circumference of the guide groove. When it is located on the guide groove, the jamming operation is performed. When it is located on the flat circumference opposite the guide groove, the jamming operation occurs. In case of fire, toxic gas is generated and detected by the smoke sensor, the motor is driven through the controller. As the spur gear rotates in engagement with the motor gear of the motor and the ball is rolled into the guide groove formed on one side of the spur gear, the ball, the spring, and the housing are pushed backward, and the locking groove and the ball of the arm are quickly caught. By closing the door to quickly and easily shut off the toxic gas there is an advantage that can prevent large casualties in advance.

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; The other side of the main body 10 is' The ball 21, the spring 22, the housing 23, the ball 21 'is sequentially inserted into the insertion tube 15 formed in the' guide 14 is coupled to the guide 14, the insertion A spur gear 30, a thrust bearing 80, and a support bolt 34 are sequentially inserted into the fixed pipe 16 positioned next to the pipe 15 to be fixed to the main body 10, and the spur gear ( 30 is a door latching device of the smoke-detecting fire door closer characterized in that the motor gear 41 is made to rotate in engagement with each other. The method of claim 1, A semicircular guide groove 32 is formed at one side of the spur gear 30, and a bearing 31 is inserted and mounted at the center thereof so that the ball 21 ′ is rotated as the spur gear 30 rotates. A door catching device for a smoke detecting fire door closer comprising a structure rolled along the circumference of (32). The method of claim 2, The inner ring of the bearing 31 inserted and bonded to the center of the spur gear 30 is supported by the washer 33 on one side thereof, and the thrust bearing 80 on the other side of the spur gear 30. ), The inner ring of the bearing 31 is fixed and the outer ring of the bearing 31 bonded to the spur gear 30 is rotated when the spur gear 30 rotates. Door latching device for door closer for smoke detection fire prevention.