TWI812777B - fire extinguishing device - Google Patents

Abstract

A fire extinguishing device, including: a fire extinguisher and a starting device. The fire extinguisher at least includes a sealed tank containing a fire extinguishing agent and a valve installed on the mouth of the sealed tank; the starting device is configured on the fire extinguisher to open the valve to release the fire extinguishing agent. The starting device includes: a hammer, a spring, a trigger, a movable bamboo shoot, a safety bolt, a pull rope and an electromagnet; after the safety bolt is unlocked, the movable bamboo shoot can be driven manually or electrically to move. The trigger releases the restriction on the hammer, and uses the elastic force of the spring to drive the hammer to hit the valve, thereby releasing the fire extinguishing agent; the invention has the function of starting the fire extinguisher manually and electrically, and can start the fire extinguisher manually or electrically. Under normal circumstances, the fire extinguisher can be started electrically by the fire control system. Even in the event of a power outage or power outage, it can be started manually, which increases the safety factor.

Description

fire extinguishing device

The present invention relates to a bottled fire extinguisher, in particular to a fire extinguishing device that can be activated manually or electrically.

The authorized Taiwan New Patent Announcement No. 131222 proposes an automatic fire extinguishing device for a portable fire extinguisher. A ready-made portable fire extinguisher (such as ABC or BC dry powder, light water foam carbon dioxide, Halon, etc.) is attached with an electromagnetic suction iron (Solenoid). When a fire alarm signal is received, the automatic operation port of the control panel causes the electromagnetic attraction to pull the handle and automatically open the discharge valve to radiate the fire extinguishing agent in the steel cylinder to the protective object. This technology directly uses the power of electromagnetic iron attraction to pull the handle of the fire extinguisher. If the handle of the fire extinguisher is stuck due to rust, it will be difficult to truly pull the handle to discharge the fire extinguishing agent.

The authorized Taiwan New Patent Announcement No. 154736 proposes a design of an automatic opening device for a fire extinguisher. The design mainly improves the structure of the nozzle switch device installed at the upper end of the fire extinguisher. The pressure gauge in the nozzle switch device is designed with a low melting point. The alloy is welded to the inner hole of a hollow bolt, and then the hollow bolt is locked into a bolt lock hole on one side of the nozzle switch device. In addition to the function of a general fire extinguisher, the device can also be used when the temperature rises during a fire. The low-alkane point alloy of the welded pressure gauge is melted, so that the fire extinguisher in the fire extinguisher can be discharged to the outside through the pressure measuring pipe of the pressure gauge to achieve the effect of automatic fire extinguishing.

In addition, in the authorized Taiwan new patent announcement number 453205 "with automatic "Fire Extinguisher Valve Body Structure with Fire Extinguishing Function" proposed a similar technology, which is to add a branch flow channel to the secondary flow channel of the valve body of a general or pressure-accumulating fire extinguisher, or to add an appropriate flow channel to the valve body, and the branch flow channel The orifice of the channel or appropriate flow channel is a screw slot, and an automatic temperature-sensing fire extinguishing nozzle is screwed in the screw slot. This nozzle is blocked by a temperature sensor. The temperature sensor can be a metal fusible piece or a fixed Warm glass ball; when a fire occurs, the fire extinguisher can not only put out the fire manually, but also throw the fire extinguisher into the car or the fire scene. When the temperature of the fire rises and reaches the preset temperature of the thermometer, the thermometer will It automatically breaks away from the nozzle and becomes open. At this time, the fire-extinguishing agent in the bottle (such as synthetic surfactant, aqueous film-forming agent, foam, etc.) is ejected from the nozzle through the branch flow channel or appropriate flow channel, and spreads in the form of a fire-extinguishing umbrella, plus The high expansion effect of the fire extinguishing agent itself is 500~1000 times to quickly extinguish the fire, achieving auxiliary and automatic fire extinguishing functions.

The technical problem to be solved by the present invention is to provide a fire extinguishing device that can be activated manually or electrically.

In order to solve the above technical problems, a preferred embodiment of the fire extinguishing device of the present invention is configured to include: a fire extinguisher and a starting device. The fire extinguisher at least includes a sealed tank containing fire extinguishing agent and a bottle mouth assembled on the bottle mouth of the sealed tank. Valve; the described starting device is configured in the fire extinguisher to open the valve to release the fire extinguishing agent. The starting device includes: a hammer, a spring, a trigger, a movable clamp, a safety bolt, a pull rope and an electromagnet .

The hammer can move between a ready position and an impact position, and the spring is used to push the hammer to move toward the impact position. The hammer reaching the impact position can hit a valve stem of the valve of the fire extinguisher, thereby releasing the fire extinguisher. Get out the fire extinguishing agent.

The trigger can move between a standby position and a release position, and the trigger It has a locking part. The locking part of the trigger in the standby position can lock the tail end of the hammer to limit the hammer to the standby position. The locking part of the trigger in the release position has left. At the rear end of the hammer, the hammer can be pushed by the spring and move toward the impact position.

The movable latch can move between a locking position and a firing position. The movable latch in the locking position is used to pull the trigger back to the standby position, and the movable latch in the firing position can drive the trigger to the release position. .

The safety bolt can move between a locked position and an unlocked position. The safety bolt in the locked position can limit the trigger to the standby position. The safety bolt in the unlocked position allows the trigger to move to the Release position.

One end of the drawstring is connected to the movable bamboo shoot to pull the movable bamboo shoot to the firing position.

A movable axis of the electromagnet is connected to the movable bamboo shoot, and the electromagnet is used to pull the movable bamboo shoot to the firing position. The electromagnet in normal state can pull the movable bamboo shoot back to the locking position.

As a preferred structure of the fire extinguishing device of the present invention, the hammer swings with a first pivot point as a rotation axis to swing between the preparation position and the impact position.

The spring is a torsion spring, and the torsion center of the torsion spring is located at the first pivot point. When the hammer is maintained in the ready position, the spring is in an energy-accumulating state of torsional deformation.

As a preferred structure of the fire extinguishing device of the present invention, the hammer is connected to a pulling rod, the pulling rod can move through the hammer, and the passing position is close to the tail end of the hammer, and the end of the pulling rod is equipped with a Tension spring, the tension spring is used to pull the pull rod, and then use the pull rod to pull the hammer back from the impact position to the ready position.

As a preferred structure of the fire extinguishing device of the present invention, the trigger uses a second pivot point as a rotating axis to perform a swinging motion to swing between the standby position and the release position.

As a preferred structure of the fire extinguishing device of the present invention, the movable bamboo shoots move linearly back and forth. The movable bamboo shoots are connected to the end of the trigger through a plate tip, and one end of the pull rope is connected to the trigger tip.

As a preferred structure of the fire extinguishing device of the present invention, the safety bolt is a rotatable component. The safety bolt has a semi-cylinder. The semi-cylinder of the safety bolt in the locked position can resist the trigger and limit the trigger to the standby position. The semi-cylinder of the safety bolt in the unlocked position does not resist the trigger, allowing the trigger to move from the standby position to the release position.

The electromagnet is a normally open type, that is, it is energized after being energized. When it is not energized in the normal state, a spring built into the electromagnet pulls the movable latch back to the locked position.

As a preferred structure of the fire extinguishing device of the present invention, it further includes a position detector. The position detector can be triggered when the trigger moves to the release position to send a signal indicating that the fire extinguisher is activated.

The position detector can be a limit switch or a proximity switch.

The beneficial effect of the present invention is that the fire extinguishing device proposed by the present invention has the functions of manual and electric starting of the fire extinguisher. The fire extinguisher can be started manually or electrically. When the power supply is normal, the fire extinguisher can be started electrically by the fire prevention control system. , even in the event of a power outage or power outage, it can be started manually, which increases the safety factor.

10‧‧‧Fire extinguisher

11‧‧‧Sealed tank

110‧‧‧Bottle mouth

12‧‧‧Valve

13‧‧‧Pressure gauge

14‧‧‧Entrance

Exit 15‧‧‧

16‧‧‧Valve stem

17‧‧‧Inner tube

18‧‧‧Spring

20‧‧‧Start the device

21‧‧‧hammer

211‧‧‧Tail end

22‧‧‧Spring

23‧‧‧Draw rope

24‧‧‧Electromagnet

241‧‧‧Activity Axis

25‧‧‧Pull rod

26‧‧‧tension spring

30‧‧‧Trigger

31‧‧‧Latching part

32‧‧‧End

40‧‧‧Movable bamboo shoots

41‧‧‧Board machine tip

50‧‧‧Safety bolt

51‧‧‧Half cylinder

60‧‧‧Position detector

A‧‧‧First pivot point

B‧‧‧Second pivot point

A1‧‧‧arrow

Figure 1 is a schematic structural diagram of an embodiment of the fire extinguishing device of the present invention.

Figure 2 is an exploded view of the structure of the embodiment of Figure 1, in which the activation device is shown in an inverted state in order to view its bottom structure.

Figure 3 is a partial structural diagram of the fire extinguishing device of the present invention, showing a structural cross-sectional view of the valve.

Figure 4 is a partial structural diagram of the fire extinguishing device of the present invention, showing an exploded structural view of the starting device.

Figure 5 is a partial structural diagram of another embodiment of the fire extinguishing device of the present invention, showing the structure of another embodiment of the activating device.

Figure 6 is a schematic diagram of the operation of the fire extinguishing device of the present invention, showing a structural cross-sectional view when the activating device is not activated.

Figure 7 is a schematic diagram of the operation of the fire extinguishing device of the present invention, showing a structural cross-sectional view after the activating device is activated.

The positional relationships described in the following embodiments include: up, down, left and right. Unless otherwise specified, they are based on the directions of components shown in the drawings.

First of all, please refer to Figures 1 and 2, which illustrate a schematic structural diagram and an exploded structural view of an embodiment of the fire extinguishing device of the present invention. The starting device in Figure 2 is shown in an inverted state to facilitate inspection of its bottom structure. An embodiment of the fire extinguishing device of the present invention includes: a fire extinguisher 10 and a starting device 20. The fire extinguisher 10 at least includes a sealed tank 11 containing fire extinguishing agent and a bottle mouth 110 assembled on the sealed tank 11. a valve 12; the starting device 20 is configured in the fire extinguisher to open the valve 12 to release the fire extinguishing agent. An exemplary structure of the valve 12 is shown in Figure 3. The valve 12 at least includes an inlet 14, an outlet 15 and a valve stem 16. The inlet 14 is connected and sealed through an inner pipe 17 with one end reaching the bottom of the sealed tank 11. Inside the tank 11; the outlet 15 can be connected to a pipe (not shown in the figure) to spray the fire extinguishing agent to the flame, but There are also some fire extinguishers that do not have a pipe. For example, a fire extinguisher under 3 kg may not have a pipe, and the outlet 15 is used as a nozzle to spray the fire extinguishing agent; the valve rod 16 is arranged between the inlet 14 and the outlet 15, and the valve rod 16 is normally The elastic force of a spring 18 closes the passage between the inlet 14 and the outlet 15. After the valve stem 16 is pushed downward, the passage can be opened, thereby allowing the fire extinguishing agent in the sealed tank 11 to be released through the outlet 15 to extinguish the fire.

In principle, the fire extinguisher 10 can be an existing cylinder fire extinguisher, but it is not limited thereto. A valve 12 is installed at the bottle mouth 110 of the cylinder (i.e., the sealed tank 11) used by the cylinder fire extinguisher to contain the fire extinguishing agent. Generally speaking, the interior of current cylinder fire extinguishers is not only filled with fire extinguishing agent, but also filled with driving gas. The valve 12 is usually equipped with a pressure gauge 13 to indicate whether the pressure of the driving gas is normal or too low.

Please refer to Figure 4, which illustrates an exemplary structure of a starting device. The starting device 20 includes: a hammer 21, a spring 22, a trigger 30, a movable latch 40, a safety bolt 50, and a pull cord 23 and an electromagnet 24.

The hammer 21 can move between a ready position (see Figure 6) and an impact position (see Figure 7). One implementation is to use the first pivot point A as the axis of rotation to perform a swing movement. Swinging between the ready position and the impact position, the hammer 21 reaching the impact position can impact the valve stem 16 of the fire extinguisher, thereby releasing the fire extinguishing agent (see Figure 7).

In one embodiment of the present invention, the hammer 21 is connected to a pulling rod 25. In one embodiment, the pulling rod 25 can be movably passed through the hammer 21, and the passing position is close to the rear end of the hammer 21. (The tail end is the end far away from the first pivot point A). The end of the pull rod 25 is equipped with a tension spring 26. The user can use the tension spring 26 to pull the pull rod 25 (see arrow A1 in Figure 7). direction indicated), and then use the pull rod 25 to pull the hammer 21 back from the impact position to the ready position, completing the hammer 21 reset operation.

The spring is used to push the hammer 21 to move toward the impact position (see Figure 7). One embodiment of the spring 22 is a torsion spring, and the torsion center of the torsion spring is located at the first pivot point A.

The trigger 30 can move between a standby position (see Figure 6) and a release position (see Figure 7). One implementation method is to use the second pivot point B as the axis of rotation to perform a swing movement. Swing between the standby position and the release position; the trigger 30 has a locking portion 31, and the locking portion 31 of the trigger 30 in the standby position can catch the tail end 211 of the hammer 21 (see Figure 6). Maintain the hammer 21 in the ready position; when the hammer 21 is maintained in the ready position, the spring 22 is in the energy storage state of torsional deformation, and the locking portion 31 of the trigger 30 in the release position has left the rear end 211 of the hammer 21 ( See Figure 7), and the hammer 21 can be pushed by the spring 22 to move toward the impact position to perform the firing operation, thereby releasing the fire extinguishing agent.

The movable bamboo shoot 40 can move between a locking position (see Figure 6) and a firing position (see Figure 7). In one embodiment, the movable bamboo shoot 40 moves linearly back and forth, and is movable in the locked position. The latch 40 is used to pull the trigger 30 back to the standby position, and the movable latch 40 in the firing position can drive the trigger 30 to the release position. In one embodiment, the movable bamboo shoot 40 is connected to the end 32 of the trigger 30 through a trigger tip 41 (the end 32 is the end away from the second pivot point B).

The safety bolt 50 can move between a locked position (see Figure 6) and an unlocked position (see Figure 7). The safety bolt 50 in the locked position can restrict the trigger 30 to the standby position, and the safety bolt 50 in the unlocked position. The bolt allows the trigger 30 to move to the release position, and the safety bolt 50 is used to lock the trigger 30 so that the trigger 30 cannot move, or to release the trigger 30 so that it can move. As a kind of safety bolt 50 In the embodiment, the safety bolt 50 is a rotatable component. The safety bolt 50 has a semi-cylinder 51 (see Figures 4 and 5), which functions like a cam. The safety bolt 50 can be between the locked position and the unlocked position. Rotating back and forth, the semi-cylinder 51 of the safety bolt 50 in the locked position can resist the trigger 30 (see Figure 6), limiting the trigger 30 to the standby position and unable to move. The half cylinder 51 of the safety bolt 50 in the unlocked position The semi-cylinder 51 does not resist the trigger 30, allowing the trigger 30 to move from the standby position to the release position under the action of external force. The external force can be implemented by: mechanical force (electric) generated by converting electrical energy, or human power.

One end of the pull rope 23 is connected to the movable bamboo shoot 40 to pull the movable bamboo shoot 40 to the firing position. The movable bamboo shoot 40 is used to pull the trigger 30 to the release position, thereby releasing the hammer 21 for the firing operation, and then releasing the fire extinguishing agent. ; In one embodiment, one end of the pull rope 23 is connected to the trigger tip 41 of the movable bamboo shoot 40, and then connected to the end 32 of the trigger 30 through the trigger tip 41. The pull rope 23 can be pulled by manpower to pull the trigger 30 to Release position (see Figure 7).

The movable axis 241 of the electromagnet 24 is connected to the movable bamboo shoot 40. The electromagnet 24 is used to drive the movable bamboo shoot 40 to move from the locking position to the firing position, and then pull the released trigger 30 to the release position (see Figure 7). , thereby realizing the function of electric operation; as an implementation mode of the electromagnet 24, the electromagnet is a normally open type (Normal Open), that is, it is energized only after power is supplied, which can avoid power consumption. The electromagnet 24 when it is not normally energized can be A spring (not shown in the figure) built in the electromagnet 24 pulls the movable latch 40 back to the locking position, thereby driving the trigger 30 back to the standby position.

Please refer to Figure 4. As a preferred structure of the fire extinguishing device of the present invention, it further includes a position detector 60. The position detector 60 can be triggered when the trigger 30 moves to the release position to send a signal indicating that the fire extinguisher is 10 is activated. The position detector 60 may be a limit switch or a proximity switch.

Although the present invention has been disclosed through the above embodiments, they are not intended to limit the present invention. Those skilled in the art can make some modifications and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention is The scope of patent protection shall be determined by the claims of this application.

10‧‧‧Fire extinguisher

11‧‧‧Sealed tank

110‧‧‧Bottle mouth

12‧‧‧Valve

13‧‧‧Pressure gauge

Exit 15‧‧‧

16‧‧‧Valve stem

17‧‧‧Inner tube

20‧‧‧Start the device

23‧‧‧Draw rope

24‧‧‧Electromagnet

241‧‧‧Activity Axis

25‧‧‧Pull rod

26‧‧‧tension spring

30‧‧‧Trigger

40‧‧‧Movable bamboo shoots

41‧‧‧Board machine tip

50‧‧‧Safety bolt

60‧‧‧Position detector

Claims (10)

A movable axis of the electromagnet is connected to the movable bamboo shoot, and the electromagnet is used to pull the movable bamboo shoot to the firing position. The electromagnet in normal condition can pull the movable bamboo shoot back to the locking position. As in the fire extinguishing device of claim 1, the hammer uses a first pivot point as a rotating axis to perform a swinging motion to swing between the ready position and the impact position. As in the fire extinguishing device of claim 2, the spring is a torsion spring, and the torsion center of the torsion spring is located at the first pivot point. When the hammer is maintained in the ready position, the spring is in an energy-accumulating state of torsional deformation. As for the fire extinguishing device described in claim 1, the hammer is connected to a pulling rod, and the pulling rod can movably pass through the hammer. The passing position is close to the tail end of the hammer, and the pulling rod is A tension spring is disposed at the end, and the tension spring is used to pull the pull rod, and then use the pull rod to pull the hammer back from the impact position to the ready position. As in the fire extinguishing device of claim 1, the trigger uses a second pivot point as a rotating axis to perform a swinging motion to swing between the standby position and the release position. As for the fire extinguishing device described in claim 1, the movable bamboo shoots move back and forth in a straight line. The movable bamboo shoots are connected to the end of the trigger through a trigger tip, and one end of the pull rope is connected to the trigger tip. As for the fire extinguishing device described in claim 1, the safety bolt is a rotatable component, and the safety bolt has a semi-cylinder section. The semi-cylinder of the safety bolt in the locked position can resist the trigger, and the trigger Restricted to the standby position and unable to move, the semi-cylinder of the safety bolt in the unlocked position does not resist the trigger, allowing the trigger to move from the standby position to the release position. For the fire extinguishing device described in claim 1, the electromagnet is a normally open type, that is, the electromagnet is activated only after power is supplied. When the electromagnet is not energized, a spring inside the electromagnet pulls the movable latch back to the locking position. The fire extinguishing device of claim 1 includes a position detector that can be triggered when the trigger moves to the release position to send a signal indicating that the fire extinguisher is activated. As for the fire extinguishing device described in claim 9, the position detector may be a limit switch or a proximity switch.

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