CN214578933U - Fire extinguisher valve - Google Patents
Fire extinguisher valve Download PDFInfo
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- CN214578933U CN214578933U CN202120887097.8U CN202120887097U CN214578933U CN 214578933 U CN214578933 U CN 214578933U CN 202120887097 U CN202120887097 U CN 202120887097U CN 214578933 U CN214578933 U CN 214578933U
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Abstract
The utility model discloses a fire extinguisher valve is including the valve body, mobilizable setting in the intercommunication passageway, the first in command, the second handle that is used for the control valve rod and the first elasticity piece that resets that is used for the valve rod that is provided with import, export and intercommunication passageway, the valve rod be provided with the bell mouth in the aperture footpath side seal complex first sealing washer, and the valve rod is setting up the inside sunken formation of first sealing washer side department and is used for first seal mounting groove, valve rod integrated into one piece. The utility model discloses its valve rod adopts the integrated into one piece technique, compares in the valve rod of equipment shaping, and is more stable in the use, avoid appearing the obscission.
Description
Technical Field
The utility model belongs to the technical field of the fire extinguisher and specifically relates to a fire extinguisher valve.
Background
The fire extinguisher is a portable fire extinguishing tool, is indispensable to shuttle among people in life, and is particularly suitable for public places with high population density, production workshops which are easy to cause fire, warehouses for storing inflammable goods and the like.
The fire extinguisher valve comprises a valve body provided with an inlet and an outlet and a valve rod movably arranged in the valve body; the valve rod controls the on-off of the inlet and the outlet by arranging a sealing element; in the prior art, a valve rod is usually formed by split assembly and comprises a valve rod body and a valve rod cap, wherein a protrusion at the lower end of the valve rod is provided with a limiting protrusion, a sealing element is sleeved on the valve rod body and is positioned below the limiting protrusion, the valve rod cap is sleeved on the valve rod body and is positioned below the sealing element, and the sealing element is limited between the limiting protrusion and the valve rod cap; by adopting the structure, the valve rod is easy to fall off between the valve rod body and the valve rod cap when in use, and the normal use is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of existence among the prior art, the utility model provides a fire extinguisher valve, its valve rod adopts the integrated into one piece technique, compares in the valve rod of equipment shaping, and is more stable, avoid appearing the obscission in the use.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a fire extinguisher valve comprises
The fire extinguisher comprises a valve body and a fire extinguisher nozzle, wherein the valve body is provided with an inlet which is communicated with a fire extinguisher bottle in a fluid mode, an outlet which is communicated with a fire extinguisher nozzle in a fluid mode, and a communication channel which is used for communicating the inlet with the outlet, and the communication channel comprises a conical hole which is arranged between the inlet and the outlet and the diameter of which is gradually reduced from the inlet to the outlet;
the valve rod is movably arranged in the communicating channel, the valve rod is provided with a first sealing ring which is in sealing fit with the small-aperture side in the tapered hole, the valve rod is inwards sunken at the side where the first sealing ring is arranged to form a first sealing installation groove, and the valve rod is integrally formed;
the first handle is fixedly arranged on the valve body;
the second handle is hinged with the first handle and used for controlling the valve rod, and the valve rod is provided with a first sealing element which is positioned at the small aperture end of the tapered hole and is in sealing fit with the small aperture end of the tapered hole under the state that the second handle is positioned at the first working position; when the second handle is located at the second working position, the valve rod is provided with a first sealing element and is located at the large-aperture end of the tapered hole;
and the first elastic resetting piece acts on the valve rod to enable the position, provided with the first sealing piece, of the valve rod to have the tendency of moving towards the small-bore end side of the conical hole.
With the structure, when an operator rotates the second handle to move the second handle from the first working position to the second working position, the second handle drives the valve rod to overcome the first elastic reset piece to move the first sealing piece from the small-aperture end to the large-aperture end of the tapered hole, so that the sealing between the first sealing piece and the tapered hole is released, the inlet is communicated with the outlet through the communication channel, and the fire extinguishing substance in the fire extinguisher bottle is sprayed out of the outlet;
when the operator removes the force applied to the second handle, the valve rod enables the first sealing element to move from the large-aperture end to the small-aperture end of the tapered hole under the action of the first elastic resetting piece and is matched, the valve rod drives the second handle to move from the second working position to the first working position in a reverse direction, and at the moment, the communication between the inlet and the outlet is cut off.
In the structure, the valve rod is integrally formed, and compared with the valve rod formed by assembling, the valve rod is more stable and avoids the shedding phenomenon in the use process.
The first sealing element is a sealing ring.
Further, the first sealing installation groove is an arc-shaped groove matched with the first sealing element.
Adopt above-mentioned structure, make the sealed effect of first sealing member obtains promoting, improves the stability of fire extinguisher valve.
Further, the fire extinguisher valve includes a riser seat disposed at the inlet, the riser seat including a valve body connecting portion connected with the valve body and a pipe fitting connecting portion for connecting with the pipe fitting; the valve body connecting part is connected with the inner wall of the communicating channel connected with the inlet in a matching way.
Specifically, the vertical pipe seat is made of a high-quality material HPb59-1 copper bar through forging, so that the overall structural strength of the valve is improved;
and the valve body connecting part and the inner wall of the communication channel are in threaded installation.
Further, the diameter of a first opening on one side of the pipe connecting part connected with the valve body connecting part is smaller than the inner diameter of the valve body connecting part, and one side of the valve body connecting part connected with the pipe connecting part extends to the first opening and is connected with the first opening to form a first abutting part;
one end of the first elastic resetting piece is abutted against the lower end of the valve rod, the other end of the first elastic resetting piece is abutted against the first abutting part, and the first elastic resetting piece is in a compression state.
By adopting the structure, because the first elastic resetting piece is in a compression state, the first elastic resetting piece always exerts an upward force on the valve rod, so that the first sealing piece always has a trend of moving towards the small aperture end direction of the tapered hole, namely the first sealing piece always has a trend of being in sealing fit with the tapered hole.
Specifically, the pipe fitting connecting portion include aperture and pipe fitting assorted pipe fitting section and be used for connecting the changeover portion of pipe fitting section and valve body connecting portion, the aperture of changeover portion is crescent along the pipe fitting section to valve body connecting portion direction.
The first elastic reset is a spring, in particular a conical spring, and the radius of the first elastic reset is gradually reduced along the direction from the first abutting part to the bottom of the valve rod.
Furthermore, the valve body is provided with a thread structure which is used for being connected and fixed with the mouth of the fire extinguisher bottle on the side wall close to the inlet, and the thread pitch of the thread structure is 2 mmm.
By adopting the structure, the bottle mouth of the fire extinguisher bottle is provided with matched threads, and the valve body is matched and fixed with the threads at the bottle mouth of the fire extinguisher bottle; in the structure, the thread structure adopts the design that the thread pitch is 2mm, so that the thread structure can bear larger working pressure and can be used for fire extinguishers with higher internal working pressure.
Furthermore, the valve body is also provided with a pressure relief channel and a safety valve core assembly arranged in the pressure relief channel; the pressure relief channel comprises an outer section and an inner section, the outer section is communicated with the outside, the inner section is communicated with a communication channel between the small-bore end sealing fit position of the first sealing element and the conical hole and the inlet, and the outer section is communicated with the inner section;
the aperture of the inner section is smaller than that of the outer section, the safety valve core assembly comprises a valve core seat positioned in the outer section, a second sealing element arranged on one side, facing the inner section, of the valve core seat, and a second elastic resetting element acting on the valve core seat to enable the valve core seat to have a movement trend facing the inner section, and the second sealing element can completely cover an opening communicated with the outer section.
By adopting the structure, when the air pressure in the fire extinguisher bottle is overlarge, the air pressure in the fire extinguisher bottle can push the valve core seat provided with the second sealing element to overcome the second elastic reset element to move towards the direction far away from the inner side section, so that the inner side section is communicated with the outer side section, and redundant air in the bottle is discharged from the pressure relief channel; when the air pressure in the bottle reaches a normal value, the valve core seat provided with the second sealing element moves towards the inner side section under the action of the second elastic reset element and cuts off the communication between the inner side section and the outer side section so as to prevent the air in the bottle from being continuously discharged through the pressure relief channel;
by means of the structure, the fire extinguisher is safer in storage and use, and the fire extinguisher valve can be used for fire extinguishers with higher internal working pressure.
Specifically, the second sealing element is a sealing flat gasket; the safety valve core assembly further comprises a second elastic element seat arranged at a port of the outer side section facing the outside, one end of the second elastic resetting element abuts against the valve core seat, the other end of the second elastic resetting element abuts against the second elastic element seat, and the second elastic resetting element is in a compressed state;
the second elastic piece seat comprises a covering part and an outer side section connecting part, wherein the covering part covers the port of the outer side section facing the outside, the outer side section connecting part extends into the outer side section and is connected with the inner wall of the outer side section, the covering part is provided with a through hole, the diameter of the through hole is smaller than the inner diameter of the outer side section connecting part, and therefore a second abutting part is formed between the outer side section connecting part and the through hole and used for abutting against a second elastic resetting piece; the outer side section connecting part is in threaded fit with the inner wall of the outer side section.
Furthermore, the communication channel penetrates through the upper end surface and the lower end surface of the valve body, an opening formed at the lower end of the valve body of the communication channel is formed as the inlet, and the outlet is arranged at the side edge of the valve body and communicated with the communication channel; the second handle is positioned above the valve rod, and the second handle does not apply downward pressure to the valve rod under the condition that the second handle is positioned at the first working position; and when the second handle is positioned at the second working position, the second handle is close to and presses down the valve rod.
The first seal moves from the small bore end to the large bore end of the tapered bore when the second handle depresses the valve stem; when the second handle does not press the valve rod downwards, the valve rod enables the first sealing element to move from the large-aperture end to the small-aperture end of the tapered hole under the action of the first elastic resetting piece.
Further, the communication passage includes an upper valve hole located above the valve body, a middle valve hole located below the upper valve hole, and a lower valve hole located below the middle valve hole; the tapered hole is positioned between the middle valve hole and the lower valve hole and is connected with the middle valve hole and the lower valve hole, and the outlet is communicated with the middle valve hole;
the aperture of the upper valve hole is matched with the valve rod, the aperture of the middle valve hole is larger than that of the upper valve hole, and the aperture of the lower valve hole is larger than that of the middle valve hole.
By adopting the structure, the upper valve hole has the function of guiding the valve rod to move, so that the valve rod moves more stably.
Further, a third seal is disposed between the valve stem and the upper valve bore.
With the structure, the third sealing element is used for sealing the gap between the valve rod and the upper valve hole, so that when the inlet is communicated with the outlet, fire extinguishing substances are prevented from flowing out of the gap between the valve rod and the upper valve hole.
Specifically, the position of the valve rod in the upper valve hole is inwards recessed to form a third seal installation groove for installing the third seal; the third sealing element is a sealing ring.
Furthermore, the fire extinguisher valve comprises a safety pin, a first safety pin hole is formed in the first handle, a second safety pin hole is formed in the second handle, and the first safety pin hole and the second safety pin hole are coaxial when the second handle is located at a first working position.
By adopting the structure, when the second handle is positioned at the first working position, the first safety pin hole and the second safety pin hole are coaxial, and the second handle can be locked by inserting the safety pin into the first safety pin hole and the second safety pin hole, and at the moment, the second handle cannot rotate to the second working position; when the fire extinguisher needs to be used, an operator only needs to pull the safety pin out of the first safety pin hole; the structure effectively prevents misoperation.
Furthermore, the fire extinguisher valve comprises a safety pin chain, wherein one end of the safety pin chain is connected with the safety pin, and the other end of the safety pin chain is connected with the first handle.
With the structure, when the safety pin is not used, the safety pin chain effectively prevents the safety pin from being lost; specifically, the safety pin chain is a rubber chain.
Further, the lateral wall of the valve body on the side where the inlet is formed is provided with a limiting protrusion, the thread structure is arranged between the limiting protrusion and the inlet, and the thread structure protrudes from the lateral wall of the valve body and the limiting protrusion to form a fourth sealing installation groove for installing a fourth sealing element.
One side of the valve body, which is provided with an inlet, needs to be inserted into the fire extinguisher bottle; by adopting the structure, the first limiting bulge limits the insertion depth of the valve body; the fourth sealing element is used for sealing a gap between the valve body and the fire extinguisher bottle to prevent leakage.
In the structure, the fourth sealing element is limited between the limiting bulge and the threaded structure, so that the fourth sealing element is prevented from falling off from the valve body; specifically, the fourth sealing element is a sealing ring.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a fire extinguisher valve, its valve rod adopt integrated into one piece technique, compare in the fashioned valve rod of equipment, more stable, avoid appearing the obscission in the use.
(2) The utility model discloses a fire extinguisher valve, its bottleneck junction with the fire extinguisher bottle adopts the helicitic texture that pitch is 2mmm, makes it can bear bigger operating pressure, can be used to on the higher fire extinguisher of inside operating pressure.
(3) The utility model discloses a fire extinguisher valve, it is provided with pressure release passageway and safety valve core subassembly, can carry out the pressure release when fire extinguisher bottle internal pressure is too big, guarantees that the fire extinguisher is depositing, the use is safer, makes the fire extinguisher valve can be used for on the higher fire extinguisher of inside operating pressure.
(3) The utility model discloses a fire extinguisher valve, its riser seat material adopts high-quality material HPb59-1 bar copper to forge and press and form for valve overall structure intensity obtains promoting.
Drawings
FIG. 1 is a schematic view of the sectional structure of the fire extinguisher valve of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure of the fire extinguisher valve at another angle;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a schematic structural view of a vertical tube seat in the fire extinguisher valve of the present invention;
reference numerals: 1, a valve body; 101 an inlet; 102 an outlet; 103 communicating the channels; 1031 upper valve hole; 1032 a central valve bore; 1033 a tapered bore; 1034 lower valve hole; 104 a thread structure; 105 a pressure relief channel; 1051 an outer section; 1052 inner section; 106 limiting bulges; 107 fourth seal mounting groove; 2, a valve rod; 201 a first seal mounting groove; 202 a third seal mounting groove; 3 a first seal; 4 a first handle; 401 a first shear pin hole; 5 a second handle; 501 second safety pin holes; 6 a first elastic reset piece; 7, a vertical pipe seat; 701 a valve body connecting part; 7011 a first abutment; 702 a tubular connection; 7021 a first opening; 7022 a pipe segment; 7023 transition section; 8, a safety valve core assembly; 801 valve core seat; 802 a second seal; 803 a second elastic restoring member; 804 a second spring mount; 8041 covering part; 8042 an outer section connecting portion; 8043 a through hole; 8044 a second abutment; 9 a third seal; 10, a safety pin; 11 a safety pin chain; 12 fourth seal.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1-5, a fire extinguisher valve comprises
The fire extinguisher valve comprises a valve body 1, a valve body and a valve body, wherein the valve body is provided with an inlet 101 which is communicated with a fire extinguisher bottle in a fluid mode, an outlet 102 which is communicated with a fire extinguisher spray head in a fluid mode, and a communication channel 103 which is used for communicating the inlet 101 with the outlet 102, and the communication channel 103 comprises a tapered hole 1033 which is arranged between the inlet 101 and the outlet 102 and the diameter of which is gradually reduced from the inlet 101 to the outlet 102;
the valve rod 2 is movably arranged in the communication channel 103, the valve rod 2 is provided with a first sealing ring which is in sealing fit with the small-aperture side in the tapered hole 1033, the valve rod 2 is inwards sunken at the side where the first sealing ring is arranged to form a first sealing installation groove 201, and the valve rod 2 is integrally formed;
a first handle 3 fixedly provided on the valve body 1;
the second handle 4 is hinged with the first handle 3 and used for controlling the valve rod 2, and in the state that the second handle 4 is located at the first working position, the valve rod 2 is provided with a first sealing element 3 which is located at the small-aperture end of the tapered hole 1033 and is in sealing fit with the small-aperture end; in the state that the second handle 4 is located at the second working position, the valve rod 2 is provided with a first sealing element 3, and the first sealing element is located at the large-aperture end of the tapered hole 1033;
a first elastic return member 6 acting on the valve stem 2 to have a tendency to move toward the small-bore end side of the tapered bore 1033 where the valve stem 2 is provided with the first seal 3.
With the above structure, when the operator rotates the second handle 4 to move it from the first working position to the second working position, the second handle 4 drives the valve rod 2 to move against the first elastic restoring member 6, so that the first sealing member 3 moves from the small-aperture end to the large-aperture end of the tapered hole 1033, the sealing between the first sealing member 3 and the tapered hole 1033 is released, and the inlet 101 and the outlet 102 communicate through the communication channel 103, so that the fire extinguishing substance in the fire extinguisher bottle is sprayed out of the outlet 102;
when the operator removes the force applied to the second handle 4, the valve rod 2 makes the first sealing member 3 move from the large-diameter end to the small-diameter end of the tapered hole 1033 and perform matching engagement under the action of the first elastic restoring member 6, and the valve rod 2 reversely drives the second handle 4 to move from the second working position to the first working position, at which time the communication between the inlet 101 and the outlet 102 is cut off.
In the structure, the valve rod 2 is integrally formed, and compared with the valve rod 2 formed by assembling, the valve rod is more stable and avoids the shedding phenomenon in the use process.
The first sealing element 3 is a sealing ring.
Preferably, the first seal installation groove 201 is an arc-shaped groove matched with the first seal member 3.
Adopt above-mentioned structure for the sealed effect of first sealing member 3 obtains promoting, improves the stability of fire extinguisher valve.
Preferably, the fire extinguisher valve comprises a riser base 7 arranged at the inlet 101, and the riser base 7 comprises a valve body connecting part 701 connected with the valve body 1 and a pipe connecting part 702 used for connecting with the pipe; the valve body connecting part 701 is connected with the inner wall of the communication channel 103 connected with the inlet 101 in a matching way.
Specifically, the vertical pipe seat 7 is made of a high-quality material HPb59-1 copper bar through forging, so that the overall structural strength of the valve is improved;
the valve body connecting part 701 is screwed with the inner wall of the communication passage 103.
Preferably, the diameter of the first opening 7021 on the side where the pipe connecting portion 702 is connected to the valve body connecting portion 701 is smaller than the inner diameter of the valve body connecting portion 701, and the side where the valve body connecting portion 701 is connected to the pipe connecting portion 702 extends to the first opening 7021 and is connected to the first opening 7021 to form a first abutting portion 7011;
one end of the first elastic resetting piece 6 abuts against the lower end of the valve rod 2, the other end of the first elastic resetting piece abuts against the first abutting part 7011, and the first elastic resetting piece 6 is in a compressed state.
With the above structure, since the first elastic restoring member 6 is in a compressed state, the first elastic restoring member 6 always applies an upward force to the valve rod 2, so that the first sealing member 3 always has a tendency to move toward the small-bore end of the tapered hole 1033, that is, the first sealing member 3 always has a tendency to be in sealing engagement with the tapered hole 1033.
Specifically, the pipe connection portion 702 includes a pipe segment 7022 having an aperture matched with the pipe, and a transition segment 7023 for connecting the pipe segment 7022 and the valve body connection portion 701, wherein the aperture of the transition segment 7023 gradually increases in a direction from the pipe segment 7022 to the valve body connection portion 701.
The first elastic return is a spring, specifically a conical spring, and the radius gradually decreases along the first abutting portion 7011 to the bottom of the valve stem 2.
Preferably, the valve body 1 is provided with a thread structure 104 on the side wall near the inlet 101 for connecting and fixing with the mouth of the fire extinguisher bottle, and the thread pitch of the thread structure 104 is 2 mmm.
By adopting the structure, the bottle mouth of the fire extinguisher bottle is provided with matched threads, and the valve body 1 is matched and fixed with the threads at the bottle mouth of the fire extinguisher bottle; in the structure, the thread structure 104 can bear larger working pressure by adopting the design that the thread pitch is 2mm, and can be used for fire extinguishers with higher internal working pressure.
Preferably, the valve body 1 is further provided with a pressure relief channel 105, and a safety valve core assembly 8 arranged in the pressure relief channel 105; the pressure relief channel 105 comprises an outer section 1051 in fluid communication with the environment and an inner section 1052 in fluid communication with the communication channel 103 between the first seal 3 and the small bore end seal engagement of the tapered bore 1033 and the inlet 101, the outer section 1051 being in communication with the inner section 1052;
the bore of the inner section 1052 is smaller than that of the outer section 1051, the relief valve core assembly 8 includes a valve core seat 801 located in the outer section 1051, a second seal 802 disposed on a side of the valve core seat 801 facing the inner section 1052, and a second elastic restoring member 803 acting on the valve core seat 801 to have a tendency to move towards the inner section 1052, and the second seal 802 can completely cover an opening of the inner section 1052 communicating with the outer section 1051.
With the structure, when the air pressure in the fire extinguisher bottle is too high, the air pressure in the fire extinguisher bottle can push the valve core seat 801 provided with the second sealing member 802 to move in the direction away from the inner section 1052 by overcoming the second elastic resetting member 803, so that the inner section 1052 is communicated with the outer section 1051, and the redundant air in the fire extinguisher bottle is discharged from the pressure relief channel 105; when the air pressure in the bottle reaches a normal value, the valve core seat 801 provided with the second sealing member 802 moves towards the inner section 1052 side under the action of the second elastic reset member 803 and closes the communication between the inner section 1052 and the outer section 1051, so as to prevent the air in the bottle from being discharged continuously through the pressure discharge channel 105;
by means of the structure, the fire extinguisher is safer in storage and use, and the fire extinguisher valve can be used for fire extinguishers with higher internal working pressure.
Specifically, the second sealing element 802 is a sealing flat gasket; the safety valve core assembly 8 further comprises a second elastic element seat 804 disposed at a port of the outer section 1051 facing the outside, one end of the second elastic resetting element 803 abuts against the valve core seat 801, the other end of the second elastic resetting element 803 abuts against the second elastic element seat 804, and the second elastic resetting element 803 is in a compressed state;
the second elastic element seat 804 includes a covering portion 8041 covering the outside port of the outer side section 1051 facing the outside, and an outer side section connecting portion 8042 extending into the outer side section 1051 and connected to the inner wall of the outer side section 1051, the covering portion 8041 is provided with a through hole 8043, and the diameter of the through hole 8043 is smaller than the inner diameter of the outer side section connecting portion 8042, so that a second abutting portion 8044 is formed between the outer side section connecting portion 8042 and the through hole 8043 for abutting against the second elastic restoring element 803; the outer section connecting portion 8042 is in threaded engagement with the inner wall of the outer section 1051.
Preferably, the communication channel 103 penetrates through the upper and lower end surfaces of the valve body 1, an opening formed at the lower end of the valve body 1 by the communication channel 103 is formed as the inlet 101, and the outlet 102 is arranged at the side of the valve body 1 and is communicated with the communication channel 103; the second handle 4 is positioned above the valve rod 2, and the second handle 4 does not apply downward pressure to the valve rod 2 in the state that the second handle 4 is positioned at the first working position; when the second handle 4 is located at the second working position, the second handle 4 is close to pressing down the valve rod 2.
When the second handle 4 depresses the valve stem 2, the first seal 3 moves from the small to large bore end of the tapered bore 1033; when the second handle 4 does not press down the valve rod 2, the valve rod 2 makes the first sealing member 3 move from the large-aperture end to the small-aperture end of the tapered hole 1033 under the action of the first elastic restoring member 6.
Preferably, the communication passage 103 includes an upper valve hole 1031 located above the valve body 1, a middle valve hole 1032 located below the upper valve hole 1031, and a lower valve hole 1034 located below the middle valve hole 1032; the tapered bore 1033 is located between the middle valve bore 1032 and the lower valve bore 1034 and connects the middle valve bore 1032 with the lower valve bore 1034, and the outlet 102 communicates with the middle valve bore 1032;
the aperture of the upper valve hole 1031 is matched with the valve rod 2, the aperture of the middle valve hole 1032 is larger than the upper valve hole 1031, and the aperture of the lower valve hole 1034 is larger than the middle valve hole 1032.
With the above structure, the upper valve hole 1031 has a function of guiding the movement of the valve rod 2, so that the movement of the valve rod 2 is more stable.
Preferably, a third sealing member 9 is disposed between the valve stem 2 and the upper valve hole 1031.
With the above structure, the third sealing member 9 is used for sealing the gap between the valve stem 2 and the upper valve hole 1031 to prevent the fire extinguishing substance from flowing out from the gap between the valve stem 2 and the upper valve hole 1031 when the inlet 101 is communicated with the outlet 102.
Specifically, the position of the valve rod 2 in the upper valve hole 1031 is recessed inwards to form a third seal mounting groove 202 for mounting the third seal 9; the third sealing element 9 is a sealing ring.
Preferably, the fire extinguisher valve comprises a safety pin 10, a first safety pin hole 401 is formed in the first handle 3, a second safety pin hole 501 is formed in the second handle 4, and the first safety pin hole 401 and the second safety pin hole 501 are coaxial when the second handle 4 is located at the first working position.
With the above structure, when the second handle 4 is located at the first working position, the first safety pin hole 401 and the second safety pin hole 501 are coaxial, and the safety pin 10 is inserted into the first safety pin hole 401 and the second safety pin hole 501, so that the second handle 4 can be locked, and at this time, the second handle 4 cannot be rotated to the second working position; when the fire extinguisher needs to be used, an operator only needs to pull the safety pin 10 out of the first safety pin hole 401; the structure effectively prevents misoperation.
Preferably, the fire extinguisher valve comprises a safety pin chain 11, one end of the safety pin chain 11 is connected with the safety pin 10, and the other end of the safety pin chain 11 is connected with the first handle 3.
With the above structure, when the safety pin 10 is not used, the safety pin chain 11 effectively prevents the loss of the safety pin 10; specifically, the safety pin chain 11 is a rubber chain.
Preferably, a limiting protrusion 106 protrudes from a side wall of the valve body 1 on the side where the inlet 101 is disposed, the thread structure 104 is disposed between the limiting protrusion 106 and the inlet 101, and a fourth sealing installation groove 107 for installing a fourth sealing element 12 is formed between the side wall of the valve body 1 and the limiting protrusion 106 by the protrusion of the thread structure 104.
One side of the valve body 1, which is provided with an inlet 101, needs to be inserted into the fire extinguisher bottle; with the structure, the first limiting bulge 106 limits the insertion depth of the valve body 1; the fourth sealing member 12 is used for sealing a gap between the valve body 1 and the fire extinguisher bottle to prevent leakage.
In the structure, the fourth sealing element 12 is limited between the limiting protrusion 106 and the thread structure 104, so that the fourth sealing element 12 is prevented from falling off from the valve body 1; specifically, the fourth sealing element 12 is a sealing ring.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A fire extinguisher valve which characterized in that: comprises that
The fire extinguisher valve comprises a valve body (1) and a valve body, wherein the valve body is provided with an inlet (101) which is communicated with a fire extinguisher bottle in a fluid mode, an outlet (102) which is communicated with a fire extinguisher spray head in a fluid mode, and a communication channel (103) which is used for communicating the inlet (101) with the outlet (102), and the communication channel (103) comprises a tapered hole (1033) which is arranged between the inlet (101) and the outlet (102) and the diameter of which is gradually reduced from the inlet (101) to the outlet (102);
the valve rod (2) is movably arranged in the communication channel (103), a first sealing ring which is in sealing fit with the small-aperture side in the tapered hole (1033) is arranged on the valve rod (2), the valve rod (2) is inwards sunken at the side where the first sealing ring is arranged to form a first sealing installation groove (201), and the valve rod (2) is integrally formed;
a first handle (3) fixedly arranged on the valve body (1);
the second handle (4) is hinged with the first handle (3) and used for controlling the valve rod (2), and when the second handle (4) is located at the first working position, the valve rod (2) is provided with a first sealing element (3) which is located at the small-bore end of the tapered hole (1033) and is in sealing fit with the small-bore end; when the second handle (4) is located at the second working position, the valve rod (2) is provided with a first sealing element (3) and is located at the large-aperture end of the tapered hole (1033);
a first elastic return member (6) acting on the valve stem (2) to have a tendency to move towards the small-bore end side of the tapered bore (1033) where the valve stem (2) is provided with the first seal (3).
2. A fire extinguisher valve as claimed in claim 1, wherein: the first sealing installation groove (201) is an arc-shaped groove matched with the first sealing element (3).
3. A fire extinguisher valve as claimed in claim 1, wherein: the vertical pipe seat (7) is arranged at the inlet (101), and the vertical pipe seat (7) comprises a valve body connecting part (701) connected with the valve body (1) and a pipe connecting part (702) connected with the pipe; the valve body connecting part (701) is connected with the inner wall of the communicating channel (103) connected with the inlet (101) in a matching way.
4. A fire extinguisher valve as claimed in claim 3, wherein: the diameter of a first opening (7021) on one side of the pipe connecting part (702) connected with the valve body connecting part (701) is smaller than the inner diameter of the valve body connecting part (701), and one side of the valve body connecting part (701) connected with the pipe connecting part (702) extends to the first opening (7021) and is connected with the first opening to form a first abutting part (7011);
one end of the first elastic resetting piece (6) abuts against the lower end of the valve rod (2), the other end of the first elastic resetting piece abuts against the first abutting part (7011), and the first elastic resetting piece (6) is in a compression state.
5. A fire extinguisher valve as claimed in claim 1, wherein: the side wall of the valve body (1) close to the inlet (101) is provided with a thread structure (104) which is used for being connected and fixed with the mouth of a fire extinguisher bottle, and the thread pitch of the thread structure (104) is 2 mmm.
6. A fire extinguisher valve as claimed in claim 1, wherein: the valve body (1) is also provided with a pressure relief channel (105) and a safety valve core assembly (8) arranged in the pressure relief channel (105); the pressure relief channel (105) comprises an outer section (1051) in fluid communication with the environment and an inner section (1052) in flow communication with a communication channel (103) between the first seal (3) and a small bore end sealing engagement of a tapered bore (1033) and the inlet (101), the outer section (1051) being in communication with the inner section (1052);
the bore diameter of the inner section (1052) is smaller than that of the outer section (1051), the relief valve core assembly (8) comprises a valve core seat (801) positioned in the outer section (1051), a second sealing member (802) arranged on one side of the valve core seat (801) facing the inner section (1052), and a second elastic resetting member (803) acting on the valve core seat (801) to enable the valve core seat to have a movement tendency towards the inner section (1052), and the second sealing member (802) can completely cover an opening of the inner section (1052) communicated with the outer section (1051).
7. A fire extinguisher valve as claimed in claim 1, wherein: the communication channel (103) penetrates through the upper end surface and the lower end surface of the valve body (1), an opening formed in the lower end of the valve body (1) of the communication channel (103) is formed as the inlet (101), and the outlet (102) is arranged on the side edge of the valve body (1) and communicated with the communication channel (103); the second handle (4) is positioned above the valve rod (2), and the second handle (4) does not apply downward pressure to the valve rod (2) in the state that the second handle (4) is positioned at the first working position; and when the second handle (4) is positioned at the second working position, the second handle (4) is close to and presses down the valve rod (2).
8. The fire extinguisher valve of claim 7, wherein: the communication passage (103) includes an upper valve hole (1031) located above the valve body (1), a middle valve hole (1032) located below the upper valve hole (1031), and a lower valve hole (1034) located below the middle valve hole (1032); the tapered bore (1033) is located between the center valve bore (1032) and the lower valve bore (1034) and is in communication with the center valve bore (1032) and the lower valve bore (1034), and the outlet (102) is in communication with the center valve bore (1032);
the hole diameter of the upper valve hole (1031) is matched with that of the valve rod (2), the hole diameter of the middle valve hole (1032) is larger than that of the upper valve hole (1031), and the hole diameter of the lower valve hole (1034) is larger than that of the middle valve hole (1032);
and a third sealing element (9) is arranged between the valve rod (2) and the upper valve hole (1031).
9. A fire extinguisher valve as claimed in claim 1, wherein: the safety handle comprises a safety pin (10), wherein a first safety pin hole (401) is formed in a first handle (3), a second safety pin hole (501) is formed in a second handle (4), and the first safety pin hole (401) and the second safety pin hole (501) are coaxial when the second handle (4) is located at a first working position;
the fire extinguisher valve comprises a safety pin chain (11), one end of the safety pin chain (11) is connected with the safety pin (10), and the other end of the safety pin chain is connected with the first handle (3).
10. A fire extinguisher valve as claimed in claim 5, wherein: the valve body (1) sets up protruding spacing arch (106) of having on the lateral wall of import (101) one side, helicitic texture (104) set up spacing arch (106) with between import (101), helicitic texture (104) protruding in valve body (1) lateral wall with form fourth seal installation groove (107) that are used for installing fourth sealing member (12) between spacing arch (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120887097.8U CN214578933U (en) | 2021-04-27 | 2021-04-27 | Fire extinguisher valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120887097.8U CN214578933U (en) | 2021-04-27 | 2021-04-27 | Fire extinguisher valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578933U true CN214578933U (en) | 2021-11-02 |
Family
ID=78328207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120887097.8U Active CN214578933U (en) | 2021-04-27 | 2021-04-27 | Fire extinguisher valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578933U (en) |
-
2021
- 2021-04-27 CN CN202120887097.8U patent/CN214578933U/en active Active
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