A control valve and a fire extinguisher

Abstract

This invention relates to the field of fire extinguisher technology, and discloses a control valve and a fire extinguisher. The control valve includes a valve body with a main channel inside. The valve body has an air inlet, an air outlet, and an extinguishing agent outlet. The air inlet is connected to the main channel via a first bypass channel, the air outlet is connected to the main channel via a second bypass channel, and the extinguishing agent outlet is connected to the inside of the fire extinguishing tank via a third bypass channel. A vent valve and a one-way valve plug are installed sequentially from top to bottom in the main channel, with the one-way valve plugs located below the first and second bypass channels respectively. In use, when air enters the control valve from the air inlet, it can enter the fire extinguishing tank through the main channel, thus forcing the extinguishing agent out of the extinguishing agent outlet. Simultaneously, air is also ejected from the air outlet. Therefore, when the control valve is used in a fire extinguisher, it does not require its own air source; only an external air source needs to be connected to the air inlet, thereby reducing the weight of the fire extinguisher.

Description

Technical Field

[0001] This invention relates to the field of fire extinguisher technology, specifically to a control valve and a fire extinguisher. Background Technology

[0002] Fire extinguishers, consumer equipment, are commonly placed in public places for public use to extinguish fires before firefighters arrive, preventing them from spreading. Existing backpack or portable fire extinguishers require their own gas source. Most existing fire extinguishers integrate compressed gas cylinders, and the high-pressure gas needs to be reduced to medium pressure before use. This requirement for a separate gas source presents the following drawbacks:

[0003] Firstly, because it needs to have its own air source, it is relatively heavy. Moreover, it cannot be used with the air breathing apparatus used by firefighters during firefighting. In other words, it cannot use the air source of the air breathing apparatus used by firefighters as the power source for the extinguishing agent to spray out of the fire extinguisher, which is not conducive to indoor fire fighting and rescue by firefighters.

[0004] Secondly, existing fire extinguishers first use medium-pressure gas to press out the extinguishing agent, and then spray the extinguishing agent into atomization through the nozzle. Since the extinguishing agent is not mixed with medium-pressure gas, its atomization effect is poor, resulting in a small extinguishing area.

[0005] Finally, existing fire extinguishers are bulky due to their built-in gas source, making them unsuitable for use in confined spaces such as new energy vehicles, computer rooms, electromechanical warehouses, and control rooms. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a control valve and a fire extinguisher. The technical problem to be solved is that existing fire extinguishers are large in size due to their own gas source, which is not conducive to actual fire extinguishing.

[0007] To address the above technical problems, in a first aspect, the present invention provides a control valve, comprising a valve body, wherein a main channel is formed vertically within the valve body, and an air inlet, an air outlet, and a fire extinguishing agent outlet are formed on the valve body; the air inlet is connected to the main channel via a first bypass channel, the air outlet is connected to the main channel via a second bypass channel, and the fire extinguishing agent outlet is connected to the interior of the fire extinguishing tank via a third bypass channel; a vent valve and a one-way valve plug are sequentially installed from top to bottom within the main channel, and the one-way valve plugs are respectively located below the first and second bypass channels.

[0008] In one embodiment of the first aspect, the vent valve includes a button, a connecting rod, a first fixed seat and a second fixed seat, the first fixed seat and the second fixed seat are installed from top to bottom in the main channel, the button is installed on the first fixed seat, the button is connected to the connecting rod, the connecting rod passes through the first fixed seat and the second fixed seat, and a first spring is provided between the one-way valve plug and the second fixed seat;

[0009] The one-way valve plug is installed inside the fixing nut, and a second spring is provided between the one-way valve plug and the fixing nut.

[0010] In one embodiment of the first aspect, the first bypass channel and the second bypass channel are vertically disposed on the valve body.

[0011] In one embodiment of the first aspect, the air inlet is connected to an air intake pipe.

[0012] Secondly, the present invention also provides a fire extinguisher, including the control valve described above, and further including a fire extinguishing canister, a dual-channel control valve, and a mixing seat;

[0013] The control valve is located at the outlet of the fire extinguishing tank; the air outlet and the extinguishing agent outlet are respectively connected to the two inlets of the dual-channel control valve via a first connecting pipe.

[0014] The mixing seat has an installation cavity, the opening of which extends to the top of the mixing seat. An input connector and a mixing chamber are installed sequentially from bottom to top inside the installation cavity. The input connector includes a gas input channel and a fire extinguishing agent input channel. The mixing chamber includes a mixing cavity. The gas input channel and the fire extinguishing agent input channel are respectively connected to the mixing cavity.

[0015] The dual-channel control valve is connected to the gas input channel via a second connecting pipe to the channel corresponding to the air outlet, and the dual-channel control valve is connected to the fire extinguishing agent input channel via a third connecting pipe to the channel corresponding to the fire extinguishing agent outlet.

[0016] In one embodiment of the second aspect, the valve body is installed at the outlet of the fire extinguisher by means of a locking nut.

[0017] In one embodiment of the second aspect, the input connector is annular, the top of the input connector has at least one second output port, the bottom of the input connector has a second input port that matches the second output port, and the channel between a second input port and its matching second output port is a fire extinguishing agent input channel; the middle of the input connector has a frustum-shaped gas input channel and an inverted frustum-shaped receiving groove sequentially formed from bottom to top;

[0018] The mixing chamber includes a support section, an air inlet head located on the bottom surface of the support section, and a second air outlet pipe located on the top surface of the support section; the support section has a first cavity inside, the air inlet head has a second cavity inside, and the air outlet channel of the second air outlet pipe communicates with the second cavity through the first cavity; the air inlet head is inserted into the receiving groove.

[0019] In one embodiment of the second aspect, the top surface of the mixing seat has a second cavity formed inward.

[0020] In one embodiment of the second aspect, the fire extinguishing container contains a fluorinated liquid.

[0021] The beneficial effects of this invention compared to the prior art are:

[0022] Firstly, the control valve of this invention is provided with an air inlet, an air outlet, and an extinguishing agent outlet, and the extinguishing agent outlet is connected to the inside of the fire extinguishing tank through a third bypass channel. The end of the third bypass channel away from the extinguishing agent outlet is connected to a liquid extraction pipe, which extends into the inside of the fire extinguishing tank. In actual use, when air enters the control valve from the air inlet, it can enter the inside of the fire extinguishing tank through the main channel, thereby forcing the extinguishing agent inside the fire extinguishing tank out through the liquid extraction pipe and the extinguishing agent outlet. On the other hand, air can also be sprayed out from the air outlet. Therefore, when the control valve of this invention is applied to a fire extinguisher, it does not need to have its own air source. It is only necessary to connect an external air source to the air inlet on the control valve, thereby reducing the weight of the fire extinguisher.

[0023] In addition, for the fire extinguisher of the present invention, when the end of the third bypass channel away from the fire extinguishing agent outlet is connected to the liquid taking pipe, and the liquid taking pipe is inserted into the fire extinguishing tank, if air is introduced into the air inlet on the control valve, the fire extinguishing agent flowing out of the fire extinguishing agent outlet and the air sprayed out of the air outlet are input into the mixing seat after passing through the dual-channel control valve, and are sprayed out after being mixed in the mixing seat, thereby atomizing the fire extinguishing agent and improving the fire extinguishing effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the control valve structure;

[0025] Figure 2 This is a schematic diagram of the bottom structure of the control valve;

[0026] Figure 3 This is a schematic diagram of the structure of the first bypass channel, the second bypass channel, the pressure relief valve, and the check valve plug inside the control valve.

[0027] Figure 4 A schematic diagram showing the extinguishing agent outlet and the third bypass channel inside the control valve;

[0028] Figure 5 This is a schematic diagram of a fire extinguisher.

[0029] Figure 6 This is a schematic diagram of the structure of the hybrid seat;

[0030] Figure 7 This is a schematic diagram of the internal structure of the hybrid seat;

[0031] Figure 8 This is a schematic diagram of the mixing chamber.

[0032] Figure 9 This is an assembly diagram of the mixing chamber and the input connector. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0034] like Figure 1-4 As shown, the control valve includes a valve body 1. A main channel 10 is vertically opened inside the valve body 1. An air inlet 11, an air outlet 12, and an extinguishing agent outlet 13 are opened on the valve body. The air inlet 11 is connected to the main channel 10 through a first bypass channel 15. The air outlet 12 is connected to the main channel 10 through a second bypass channel 16. The extinguishing agent outlet 13 is connected to the inside of the fire extinguishing tank 2 through a third bypass channel 17. A vent valve and a one-way valve plug 19 are installed sequentially from top to bottom inside the main channel 10. The one-way valve plugs 19 are located below the first bypass channel 15 and the second bypass channel 16, respectively.

[0035] In practical use, when the control valve is installed on the fire extinguisher, the third bypass channel 17 is connected to the liquid extraction pipe at the interface 14 away from the extinguishing agent outlet 13. When air enters the control valve from the air inlet 11, it can enter the fire extinguishing tank 2 through the first bypass channel 15 and the main channel 10, thereby forcing the extinguishing agent inside the fire extinguishing tank 2 out of the extinguishing agent outlet 13 through the liquid extraction pipe. On the other hand, air can also be sprayed out from the air outlet 12 through the second bypass channel 16. Therefore, when the control valve of the present invention is applied to the fire extinguisher, it does not need to have its own air source. It is only necessary to connect the external air source to the air inlet 11 on the control valve, thereby reducing the weight of the fire extinguisher.

[0036] like Figure 3As shown, in this embodiment, the vent valve includes a button 180, a connecting rod 183, a first fixed seat 181, and a second fixed seat 182. The first fixed seat 181 and the second fixed seat 182 are installed from top to bottom in the main channel 10. The button 180 is installed on the first fixed seat 181 and is connected to the connecting rod 183. The connecting rod 183 passes through the first fixed seat 181 and the second fixed seat 182. A first spring 184 is provided between the one-way valve plug 19 and the second fixed seat 182. The one-way valve plug 19 is installed in the fixing nut 186, and a second spring 185 is provided between the one-way valve plug 19 and the fixing nut 186. In practical use, the vent valve ensures that the air entering from the air inlet 11 flows downward in one direction through the one-way valve plug 19. Since the one-way valve plug 19 is equipped with a first spring 184 above and a second spring 185 below, when there is medium-pressure gas above the one-way valve plug 19, the one-way valve plug 19 moves downward and opens, allowing the gas to flow downward through the one-way valve plug 19. If the control valve is connected to a fire extinguisher 2, the gas enters the fire extinguisher 2. When the gas pressure above the one-way valve plug 19 is less than or equal to the gas pressure below the one-way valve plug 19, the one-way valve plug 19 moves upward to the limit position, blocking the gas and preventing it from moving downward. When the control valve is connected to a fire extinguisher 2, if the gas pressure inside the fire extinguisher 2 is too high, pressing the button 180 will cause the one-way valve plug 19 to move downward, thereby achieving pressure relief.

[0037] Reference Figure 2 and Figure 3 The first bypass channel 15 and the second bypass channel 16 of the present invention are vertically arranged on the valve body 1.

[0038] In practical use, air inlet 11 is used to connect to the air intake pipe. An external air source is introduced into air inlet 11 through the air intake pipe.

[0039] like Figure 5-9 As shown, the present invention also provides a fire extinguisher, including the control valve described above, and further including a fire extinguishing canister 2, a dual-channel control valve 3, and a mixing seat 4;

[0040] Reference Figure 5 The control valve is located at the outlet of the fire extinguishing tank 2. Specifically, the valve body 1 is installed at the outlet of the fire extinguishing tank 2 by means of a locking nut 8. The air outlet 12 and the extinguishing agent outlet 13 are respectively connected to the two channel inlets of the dual-channel control valve 3 through the first connecting pipe 5.

[0041] Reference Figure 6 The mixing seat 4 has a mounting cavity 40, the opening of which extends to the top of the mixing seat 4; see reference. Figure 7 An input connector 43 and a mixing chamber 42 are installed sequentially from top to bottom inside the mounting cavity 40; see reference. Figure 7 and Figure 9The input connector 43 includes a gas input channel 430 and an extinguishing agent input channel 432, and the mixing chamber 42 includes a mixing cavity 420. The gas input channel 430 and the extinguishing agent input channel 432 are respectively connected to the mixing cavity 420.

[0042] The outlet of the dual-channel control valve 3 corresponding to the air outlet 12 is connected to the gas input channel 430 through the second connecting pipe 6, and the outlet of the dual-channel control valve 3 corresponding to the extinguishing agent outlet 13 is connected to the extinguishing agent input channel 432 through the third connecting pipe 9.

[0043] In actual use, the air ejected from the air outlet 12 and the liquid flowing from the extinguishing agent outlet 13 are fed into the mixing seat 4 through the dual-channel control valve 3 for mixing, and then sprayed out, which allows the extinguishing agent to be atomized and the fire extinguishing effect to be better.

[0044] Specifically, refer to Figure 7 and Figure 9 In this embodiment, the input connector 43 is annular, and at least one second output port (not shown in the figure) is provided at the top of the input connector 43. A second input port 431 matching the second output port is provided at the bottom of the input connector 43. The channel between a second input port 431 and its matching second output port is a fire extinguishing agent input channel 432. A frustum-shaped gas input channel 430 and an inverted frustum-shaped receiving groove 44 are provided sequentially from bottom to top in the middle of the input connector 43.

[0045] Specifically, refer to Figure 7 and Figure 8 The input connector 42 includes a support part 420, an air inlet head 421 located on the bottom surface of the support part 420, and a second air outlet pipe 422 located on the top surface of the support part 420. The support part 420 has a first cavity inside, the air inlet head 421 has a second cavity inside, the air inlet channel of the second air outlet pipe 422 is connected to the second cavity through the first cavity, and the air inlet head 421 is inserted into the receiving groove 44.

[0046] In addition, the mixing chamber 42 is installed in the mounting cavity 40 via the base 45.

[0047] In actual use, when the extinguishing agent enters the extinguishing agent input channel 432 and the air enters the gas input channel 430, it will enter the receiving tank 445, and then be mixed in the receiving tank 44, the air inlet head 421, the support part 420 and the second air outlet pipe 422 before being sprayed out. The air inlet channel of the second air outlet pipe 422, the first cavity and the second cavity form a mixing chamber.

[0048] In addition, in this embodiment, in order to reduce the weight of the mixing seat 4, refer to Figure 6 The top surface of the mixing seat 4 has a second cavity 41 that is opened inward.

[0049] In addition, in this embodiment, the extinguishing agent stored in the fire extinguishing tank 2 is a fluorinated liquid.

[0050] In summary, the control valve of the present invention is provided with an air inlet 11, an air outlet 12, and an extinguishing agent outlet 13, and the extinguishing agent outlet 13 is connected to the inside of the fire extinguishing tank 2 through a third bypass channel 16. The end of the third bypass channel 16 away from the extinguishing agent outlet is connected to a liquid extraction pipe, which extends into the inside of the fire extinguishing tank 2. In actual use, when air enters the control valve from the air inlet 11, it can enter the inside of the fire extinguishing tank 2 through the main channel 10, thereby forcing the extinguishing agent inside the fire extinguishing tank 2 out through the liquid extraction pipe and the extinguishing agent outlet 13. On the other hand, air can also be sprayed out from the air outlet 12. Therefore, when the control valve of the present invention is applied to a fire extinguisher, it does not need to have its own air source. It is only necessary to connect an external air source to the air inlet 10 on the control valve, thereby reducing the weight of the fire extinguisher.

[0051] In addition, for the fire extinguisher of the present invention, when the end of the third bypass channel 16 away from the fire extinguishing agent outlet 13 is connected to the liquid taking pipe and the liquid taking pipe extends into the fire extinguishing tank 2, if air is introduced into the air inlet 11 on the control valve, the fire extinguishing agent flowing out of the fire extinguishing agent outlet 13 and the air sprayed out of the air outlet 12 are input into the mixing seat 4 after passing through the dual-channel control valve 3. After being mixed in the mixing seat 4, they are sprayed out, thereby atomizing the fire extinguishing agent and improving the fire extinguishing effect.

[0052] Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. Fire extinguisher, characterized in that The control valve, the fire extinguishing tank, the double-channel control valve and the mixing seat are included. The control valve includes a valve body, a main channel is vertically formed in the valve body, an air inlet, an air outlet and a fire extinguishing agent outlet are formed on the valve body, the air inlet is communicated with the main channel through a first bypass channel, the air outlet is communicated with the main channel through a second bypass channel, the fire extinguishing agent outlet is communicated with the inside of the fire extinguishing tank through a third bypass channel, a deflation valve and a one-way valve plug are sequentially installed in the main channel from top to bottom, the one-way valve plug is below the first bypass channel and the second bypass channel respectively. The deflation valve includes a button, a connecting rod, a first fixing seat and a second fixing seat, the first fixing seat and the second fixing seat are installed in the main channel from top to bottom, the button is installed on the first fixing seat, the button is connected with the connecting rod, the connecting rod passes through the first fixing seat and the second fixing seat, a first spring is arranged between the one-way valve plug and the second fixing seat. The one-way valve plug is installed in a fixing nut, a second spring is arranged between the one-way valve plug and the fixing nut. The control valve is arranged at the outlet of the fire extinguishing tank, the air outlet and the fire extinguishing agent outlet are respectively connected with two channel inlets of the double-channel control valve through first connecting pipes. A mounting cavity is formed in the mixing seat, a cavity opening of the mounting cavity extends to the top of the mixing seat, an input connector and a mixing bin are sequentially installed in the mounting cavity from bottom to top, the input connector includes a gas input channel and a fire extinguishing agent input channel, the mixing bin includes a mixing cavity, the gas input channel and the fire extinguishing agent input channel are respectively communicated with the mixing cavity. A channel outlet corresponding to the air outlet of the double-channel control valve is connected with the gas input channel through a second connecting pipe, a channel outlet corresponding to the fire extinguishing agent outlet of the double-channel control valve is connected with the fire extinguishing agent input channel through a third connecting pipe. The input connector is annular, at least one second output opening is formed in the top of the input connector, a second input opening matched with the second output opening is formed in the bottom of the input connector, a channel between one second input opening and its matched second output opening is a fire extinguishing agent input channel, a circular truncated cone-shaped gas input channel and an inverted circular truncated cone-shaped containing groove are sequentially formed in the middle of the input connector from bottom to top. The mixing bin includes a support part, an air inlet head on the bottom surface of the support part and a second air outlet pipe on the top surface of the support part, a first cavity is arranged in the inside of the support part, a second cavity is arranged in the inside of the air inlet head, an air outlet channel of the second air outlet pipe is communicated with the first cavity and the second cavity, the air inlet head is inserted into the containing groove.

2. The fire extinguisher of claim 1, wherein, The valve body is installed at the outlet of the fire extinguishing tank through a locking nut.

3. The fire extinguisher of claim 1, wherein, A second containing cavity is formed in the top surface of the mixing seat.

4. The fire extinguisher of claim 1, wherein, The fire extinguishing tank contains fluorinated liquid.

5. The fire extinguisher of claim 1, wherein, The first bypass channel and the second bypass channel are vertically arranged on the valve body.

6. The fire extinguisher of claim 1, wherein, An air inlet pipe is connected with the air inlet.

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