KR100281520B1 - A Driving gear of the fire extinguisher - Google Patents

Abstract

The present invention relates to an automatic fire extinguishing system system capable of extinguishing a fire automatically in the event of a fire, comprising installing a motor in an operation box fastened to a fire extinguisher head, and configuring a device for changing the rotational motion of the motor into a linear motion. The cam device is configured to push the operation pin of the fire extinguisher head.

In the operating box 103a of the present invention, the gear 170a attached to the motor shaft of the motor unit 170 and the pinion gear 180a of the reduction device 180 are engaged with each other, and the pinion gear 180b of the reduction device 180 changes the reduced rotational motion into linear motion. Meshes with the tapered rack 185. The tapered rack engaged with the deceleration device slides along the rack rail 186, and the rack stoppers 184a and 184b for limiting the movement length of the rack are fixed to both ends of the rack rail.

The operation box configured as described above is supplied with power to the motor when a fire occurs, and the tapered rack moves along the rack rail by the rotation of the motor, thereby pushing the operation pin 25 of the fire extinguisher head. do.

Therefore, the structure of the operation box of the present invention allows the automatic fire extinguisher system to be configured with the conventional operation wires, fuse links, etc. removed, and in particular, the installation structure of the system can be simplified.

Description

A driving gear of the fire extinguisher

The present invention relates to an automatic fire extinguishing device capable of automatically extinguishing a fire in the event of a fire, and more particularly, to an operation box attached to a head of a fire extinguisher of an automatic fire extinguishing device to inject a fire extinguishing material of the fire extinguisher.

In general, a fire extinguisher is installed in a place exposed to a fire risk, such as a kitchen in a home or a kitchen counter in a restaurant.

The fire extinguisher should be equipped with a system that automatically detects the fire when a fire occurs, to extinguish the fire by injecting the extinguishing fluid material of the fire extinguisher, to shut off the valve of the fuel pipe, and to ring a fire alarm.

An example of a structure of a conventional automatic fire extinguisher equipped with the above system is a schematic front view of a state in which a conventional automatic fire extinguishing system is installed in a kitchen of a home, and FIG. 2, which illustrates a three-dimensional structure of the extrusion bar 5 of FIG. 1. 3 will be described with reference to FIG. 3 showing the front detail of the extrusion bar 5 of FIG. 1 and FIG. 4 showing the coupling state of the operation box and the fire extinguisher head.

The fire extinguisher main body equipped with the fire extinguisher 2 and the fire extinguisher operation box 3 mounted on the head 22 of the fire extinguisher is disposed in the space 57 above the range hood 56 to discharge the smell and smoke generated when cooking. An extrusion bar 5 equipped with a nozzle 15, a temperature sensor 29 and a fuse link 21 is fixed to the bottom of the range hood 56. The control box 60 is disposed in the space of the storage cabinet 80, the gas circuit breaker 30 is installed at an appropriate position of the outer wall or the inner wall, and the gas leakage alarm 50 is installed at an appropriate position of the inner wall.

In the automatic fire extinguisher system configured as described above, the injection nozzle 15 of the head 22 and the extruding bar 5 of the fire extinguisher is connected by a connecting tube 16, and the operation wire 3 of the outer shell 100a on which the working wire 100 is slidable. One end is fixed, and the other end of the outer shell 100a is fixed to the extrusion bar 5. One end of the operation wire 100 drawn out of the inner shell 100a is connected to the fuse link 21 configured in the extrusion bar 5, and the fuse link 21 is fixed to the wall of the extrusion bar 5. The other end of the operation wire 100 drawn out from the inside of the outer shell 100a is fixed to the tenbuckle 41 of the operation box 3, and the tenbuckle is fixed to the upper part of the lever 91. The lever 91 is connected to the spring 92 fixed to the wall of the operation box 3, the center portion is fixed by the lever pin 43. The lever pin 43 is fixed to the wall of the operation box 3, the lever 91 is pivotable around the lever pin, and the lower end 44 of the lever 91 does not press the upper end 17 of the operation pin 25 installed on the fire extinguisher head 22. The tension force is maintained by the action of the wire 100. In particular, the adjustment of the tensile force can be finely adjusted by adjusting the length of the working wire 100 by the tenbuckle 41.

On the other hand, the fire extinguisher head 22 is provided with a connecting passage 66 to move the extinguishing fluid in the interior of the extinguisher 2 to the connecting pipe 16 connected to the injection nozzle 15, as shown in Figure 4, the operation pin 25 is inserted into the connecting passage 66 The lower end of the operation pin blocks the central portion of the connecting passage 66 by the action of the spring 52. Then, the pressure gauge 93 is connected to the connecting passage.

In addition, the control box 60 of FIG. 1 is connected to a sensor line 20 drawn out from the temperature sensor 29, and a pressure sensing line 88 drawn out from the pressure gauge 93 of the fire extinguisher head unit is connected to detect the pressure state of the fire extinguisher 2. The gas leakage alarm signal line 51 drawn out from the gas leakage alarm 50 is connected, and the gas shutoff signal line 31 drawn out from the gas circuit breaker 30 is connected. Inside the control box, a board having a function of providing information on the gas leakage alarm 50 and the gas circuit breaker 30 by checking the pressure state of the fire extinguisher 2 and the signal of the temperature sensor 29 is embedded.

In a state where a fire has not occurred, that is, the fire extinguisher system described above is normally maintained and the fire is generated from a gas range or the like due to other factors, or to go out with the gas range 46 turned on. In the first case, when the temperature sensor 29 detects a flame of a fire and supplies a signal to the control box 60, the gas circuit breaker 30 automatically operates to lock the gas valve and operate the gas leakage alarm 50. Subsequently, when the fuse link 21 is melted and broken by the flame, the operation wire 100 connected to the fuse link 21 is pulled toward the operation box 3, and thus the tension force which has been balanced based on the lever 91 loses the balance. The lever 91 rotates counterclockwise with respect to the lever pin 43. In other words, the end 44 of the lever is moved toward the upper end of the operating pin 17, and the connecting passage 66 is opened by pressing the operating pin downward, and the extinguishing fluid stored and stored inside the fire extinguisher 2 is injected through the connecting tube 16 and the fire is started early. Battling on.

However, the conventional automatic fire extinguisher system configured as described above should adjust the length of the operation wire 100 so that the lever 91 installed in the operation box 3 does not come into contact with the operation pin 25 as shown in the structure of FIGS. 1 and 4. , Since the outer wire 100a of the operation wire line must be fixed to the operation box 3 and the extrusion bar 5, the installation process is cumbersome, and there is a problem in that an extrusion bar 5 and a fuse link 21 capable of fixing the outer shell 100 a must be provided.

Therefore, an object of the present invention is to enable the operation box to detect a fire even in a structure in which the operation wire 100 and the outer shell 100a and the fuse link 21 connected to the operation box 3 and the extrusion bar 5 are removed.

The present invention is to solve the above problems, to install the motor in the operation box 3 to achieve the above object, to constitute a device for changing the rotational movement of the motor to a linear movement or to configure the cam device is fastened with the operation box 3 Control pin 25 on the fire extinguisher head.

1 is a front view schematically showing a state in which a conventional automatic fire extinguishing system is installed in a home kitchen,

Figure 2 is a three-dimensional view showing the structure of the extrusion bar of Figure 1,

3 is a front view of the extrusion bar of Figure 1,

4 is a combined state diagram of the operation box and the fire extinguisher head of Figure 1,

Figure 5 is a state diagram of an example showing a coupling state of the operation box and the fire extinguisher head in the system of the automatic fire extinguishing device of the present invention,

Figure 6 is a state diagram of another example showing a coupling state of the operation box and the fire extinguisher head in the system of the automatic fire extinguishing device of the present invention,

Figure 7a is a three-dimensional view showing the coupling state of the operation box and the fire extinguisher head in Figure 5,

FIG. 7B is a three-dimensional view showing an example of another structure of the rack shown in FIG. 7A, FIG.

8 is a three-dimensional view showing a coupling state of the operation box and the fire extinguisher head in Figure 6,

9 is a front view schematically showing a state in which the automatic fire extinguishing system of the present invention is installed in a home kitchen.

* Description of the symbols for the main parts of the drawings *

2. Fire extinguishers 3, 103a, 103b. Operation box

5. Extrusion Bar 15. Spray Nozzle

16.Connector 20.Temperature sensor wire

21.FuseBlink 22.Fire Extinguisher Head

25.Operation Pin 29.Temperature Sensor

30.Gas Breaker 41.Tenbuckle

43.Leverpin 50.Gas leakage alarm

51.Gas leakage alarm signal line 52,92.Spring

60.Control box 88.Pressure sensing wire

91.Lever 93.Pressure Gauge

99. Motor Power Line

100. Operation wire 100a. Outer shell of working wire

167. Motor Power Off Switch 170. Motor Section

170a. Gear attached to the motor shaft 180. Reduction gear

180a, 180b.Pinion Gear 184a, 184b.

185,185a. Tapered rack 186,186a. Lac Rail

300.cam 300a. camshaft

300b.Cam curve 300c. Camshaft gear

The present invention is coupled to the fire extinguisher head, the operation box of the automatic fire extinguishing device which pushes the operation pin blocking the connection passage of the fire extinguisher head, so that the extinguishing fluid in the fire extinguisher is automatically sprayed, the motor unit and the motor A deceleration device for decelerating negative rotational motion, a tapered rack engaged with the pinion gear of the deceleration device for converting the rotational motion decelerated by the deceleration device into a linear motion, and the tapered rack is a rack rail. It comprises a rack stopper to define the length to move along, and configures the operation box to push the operation pin by the movement of the tapered rack.

In addition, in the operation box of the automatic fire extinguishing device of the present invention is coupled to the fire extinguisher head, and pushes the operation pins blocking the connection passage of the fire extinguisher head part to the automatic extinguishing fluid material in the fire extinguisher to the automatic box of the present invention. A cam curve is formed such that a part, a deceleration device for decelerating the rotational motion of the motor unit, and a camshaft gear formed along the outer circumferential surface of the deceleration device are engaged with the pinion gear of the deceleration device, and the surface side corresponding to the end of the operation pin is bent. And a cam connected to an end of the camshaft and a switch for stopping the rotation of the cam, and the switch is pushed by the rotation of the cam, and the switch is pushed when the cam pushes the operating pin. The operating box is configured to operate to stop the rotation of the cam.

Operation box of the present invention configured as described above will be described in detail by the embodiment.

Example 1

This embodiment will be mainly described with reference to FIGS. 5, 7A and 7B.

A connecting passage 66 is provided to allow the extinguishing fluid in the extinguisher 2 to move to the connecting tube 16 connected to the injection nozzle. A pressure gauge 93 is provided to communicate with the connecting passage 66. An operation pin 25 is inserted into the connecting passage 66. The operation box 103a is fastened to the lower extremity of the operation pin by the action of the spring 52 on the fire extinguisher head 22 which blocks the central portion of the connection passage 66.

The operation box 103a is composed of a motor 170, a reduction gear 180 for reducing the rotation of the motor, a tapered rack 185, a rack stopper 184a, 184b, and the like, and a gear 170a attached to the motor shaft of the motor part, and Pinion gear 180a is engaged. On the other hand, the pinion gear 180b of the reduction gear meshes with the rack 185, and the rack is configured to slide linearly along the rack rail 186, and both ends of the rack rail are fixed by the rack stoppers 184a and 184b.

When the fire does not occur, that is, the bottom portion of the tapered rack 185 and the upper end of the operation pin 25 are not in contact with each other. When a voltage is applied to the motor and the motor rotates, the rotation of the motor is transmitted to the pinion gear 180a of the reduction gear 180, and the rotation speed is decelerated and transmitted to the pinion gear 180b. The pinion gear 180b moves the rack 185 along the rack rail 186, and when the upper end of the operation pin 25 is pushed by the bottom of the tapered rack 185, the connection passage 66 is opened, and the extinguishing material in the fire extinguisher is connected. It is sprayed through coffin 16, so that it is possible to extinguish the fire.

The rack stoppers 184a and 184b fixedly installed at both ends of the rack rails limit the movement of the rack 185 and are configured to stop the rotation of the motor when the rack is in contact with the rack stopper.

The coupling structure between the rack rail 186 and the rack 185 may be inserted by inserting the rack rail 186 into at least one through hole penetrating the center of the rack 185 as shown in FIG. 7A, or grooves may be formed on both sides of the rack 185a as shown in FIG. 7B. And to form, each of the rack rails 186a can be coupled to each other.

Example 2

This embodiment will be mainly described with reference to FIGS. 6 and 8.

As in the first embodiment, a connecting passage 66 is provided to allow the extinguishing fluid in the interior of the extinguisher 2 to move to the connecting tube 16 connected to the injection nozzle, and a pressure gauge 93 is provided to communicate with the connecting passage 66, and the inside of the connecting passage 66 is operated. The pin 25 is inserted, and the operation box 103b is fastened on the fire extinguisher head 22 which blocks the central portion of the connection passage 66 by the action of the spring 52 at the lower end of the operation pin.

The operation box 103b includes a cam 300 and a cam 300 connected to an end of the cam shaft 300a such that a cam curve 300b is formed to bend the surface side corresponding to the operation pin 25 and the speed reduction device 180 for reducing the rotation of the motor unit 170 and the motor. And a gear 170a attached to the motor shaft of the motor unit and the pinion gear 180a of the reduction gear 180 are engaged with each other. On the other hand, the pinion gear 180b of the reduction gear meshes with the camshaft gear 300c formed on the outer circumferential surface of the camshaft.

A switch 167 is attached to turn off the power line applied to the motor unit near the operation pin 25.

In a state where a fire does not occur, i.e., the surface of the cam curve 300b is not in contact with the upper end of the operation pin 25 in a normal state, and when a fire occurs, a flame is detected and a voltage is applied to the power line 99 of the motor. Is applied, and the motor rotates. The rotation of the motor is transmitted to the pinion gear 180a of the reduction gear 180, and the rotation speed is decelerated and transmitted to the pinion gear 180b. The pinion gear 180b rotates the cam shaft 300a, and the cam curved surface pushes the upper end of the operation pin 25 according to the rotation of the cam shaft, and the cam rotates while the cam curved surface pushes the operating pin. The switch 167 is activated to cut off the power of the motor. As described above, when the upper end of the operation pin 25 is pushed by the cam, the connection passage 66 is opened, and the extinguishing fluid in the fire extinguisher is sprayed through the connection pipe 16, thereby suppressing the fire.

When operating boxes 103a and 103b are configured as in the first and second embodiments, the automatic fire extinguisher system of the present invention can be configured as shown in FIG. 9.

9, the range hood 56 is installed to discharge the odor and smoke generated when cooking the fire extinguisher main body equipped with the fire extinguisher 2 and the fire extinguisher operation box 103a or 103b of the present invention in the head 22 of the fire extinguisher. The extrusion bar 5, which is disposed in the upper space 57 and includes the injection nozzle 15 and the temperature sensor 29, is fixed to the bottom of the range hood 56. The control box 60 is disposed in the space of the storage cabinet 80, the gas circuit breaker 30 is installed at an appropriate position of the outer wall or the inner wall, and the gas leakage alarm 50 is installed at an appropriate position of the inner wall. In addition, the head 22 and the injection nozzle 15 of the fire extinguisher is connected by a connecting tube 16, the control box 60 is connected to the sensor wire 21 drawn out from the temperature sensor 29, the fire extinguisher head to sense the pressure state of the fire extinguisher 2 The pressure sensing line 88 drawn out from the negative pressure gauge is connected, the motor power line 99 is connected, the gas leakage alarm signal line 51 drawn out from the gas leakage alarm 50 is connected, and the gas shutoff signal line 31 drawn out from the gas circuit breaker 30 is connected. Connected.

In the control box, the pressure state of the fire extinguisher 2 and the state of the temperature detection sensor 29 are checked to provide information on the gas leakage alarm 50 and the gas circuit breaker 30, and in particular, the fire signal of the temperature detection sensor 29 is sensed so that the motor power line 99 The board | substrate which has a function of applying a voltage to is built in.

In a state where a fire has not occurred, that is, a state in which the automatic fire extinguisher system of the present invention described above is maintained in a normal state, and a fire occurs from the gas range 46 or the like, first, the temperature sensor 29 is a flame of fire. After detecting and supplying a signal to the control box 60, the gas circuit breaker 30 operates automatically to lock the gas valve and to operate the gas leakage alarm 50. At the same time, when the voltage is applied to the motor power line 99, the motor is operated, and the extinguishing liquid material, which is compressed and stored inside the fire extinguisher 2, is injected through the connecting pipe 16 by the process described in the first and second embodiments.

In the present invention, in the automatic fire extinguisher system, a motor is installed in an operation box attached to the fire extinguisher head, and the fire extinguisher head is fastened to the operation box by configuring a device for converting the rotational motion of the motor into a linear motion or by configuring a cam device. By allowing the negative operation pin to be pushed, the extinguishing agent in the fire extinguisher can be injected even in a structure in which a conventional extruded bar, an operation wire line, a fuse link, etc. have been removed, and the installation structure of the automatic fire extinguisher can be simplified accordingly. It works.

In addition, the extinguishing fluid injection reliability is improved by providing a power cut-off switch of the motor to stop the rotational motion of the motor in a state in which the operation pin is pushed, that is, the extinguishing fluid is injected.

Claims (1)

In the operation box of the automatic fire extinguishing device coupled to the fire extinguisher head portion 22, and pushes the operation pin 25 that blocks the connection passage 66 of the fire extinguisher head portion so that the extinguishing agent in the fire extinguisher 2 is automatically sprayed, The cam shaft 300a is connected to the motor unit 170 operated according to the temperature sensed by the temperature sensor 29, the speed reduction device 180 for reducing the rotational motion of the motor part, and the pinion gear 180b of the speed reduction device. Cam shaft 300b is formed along the outer circumferential surface of the cam) and the cam curve 300b is formed to bend the surface side corresponding to the end of the operation pin 25 and the cam 300 connected to the end of the cam shaft. And a switch 167 for stopping the rotation of the cam, pushing the operating pin 25 by the rotation of the cam 300, and the switch 167 when the cam pushes the operating pin. ) Operating box of the automatic fire extinguishing device, characterized in that configured to stop the rotation of the cam.