CN106390342A - Self-closing type foam spray nozzle - Google Patents
Self-closing type foam spray nozzle Download PDFInfo
- Publication number
- CN106390342A CN106390342A CN201610415000.7A CN201610415000A CN106390342A CN 106390342 A CN106390342 A CN 106390342A CN 201610415000 A CN201610415000 A CN 201610415000A CN 106390342 A CN106390342 A CN 106390342A
- Authority
- CN
- China
- Prior art keywords
- self
- spring
- connecting rod
- union joint
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a self-closing type foam spray nozzle. The spray nozzle is used for a foam fire extinguishing system and comprises a connecting head, a flow dividing cylinder and a normally-closing cover assembly; the connecting head is provided with a first end and a second end, the first end is connected with a flow collecting pipe of the foam fire extinguishing system, a spray opening is formed in one end of the flow dividing cylinder, a connecting opening is formed in the other end of the flow dividing cylinder, the connecting opening of the flow dividing cylinder is connected with the second end of the connecting head, a flow dividing disc is arranged in the connecting opening of the flow dividing cylinder, and a plurality of spray holes are formed in the flow dividing disc; the normally-closing cover assembly is assembled on the flow dividing disc in a sliding manner, a spring is arranged between the normally-closing cover assembly and the flow dividing disc, and the normally-closing cover assembly blocks the spraying opening of the flow dividing cylinder under drive of the spring. When the self-closing type foam spray nozzle is not used, the spray opening can be automatically closed so as to prevent foreign matter from entering the spraying opening, the spray holes in the spray opening can be protected against blockage, and the flow and the spray radius cannot be affected.
Description
Technical field
The invention belongs to fire-fighting equipment field is and in particular to a kind of self-closing foam nozzle.
Background technology
The foam nozzle of current froth fire extinguishing system is all to be entered by producing foam in the spray orifice in its spout
Row covers fire extinguishing, but is placed due to long, has more or less foreign body unavoidably and enters bubble jet
Blocking spray orifice in the spout of head, causes capacity of sprinkler and/or spurts radius and be all affected.
It is therefore proposed that a kind of can just seem ten by the self-closing foam nozzle of automatic closed spout in non-usage
Divide necessity.
Content of the invention
For solving problem above, the present invention proposes a kind of self-closing foam nozzle, for froth fire extinguishing system,
Including：Union joint, shunt cylinder and normally closed cap assemblies, described union joint has first end and the second end, institute
The header stating first end with described froth fire extinguishing system is connected；One end of described shunt cylinder is spout, separately
One end is connector, and the connector of described shunt cylinder is connected with the second end of described union joint, described shunting
It is provided with shunting disk in the connector of cylinder, described shunting disk is provided with multiple spray orifices；Described normally closed lid group
Part is slidedly assemblied on described shunting disk, is provided with spring between described normally closed cap assemblies and described shunting disk,
Described normally closed cap assemblies block the spout of described shunt cylinder under described Spring driving.
According to the self-closing foam nozzle of the present invention, normally closed cap assemblies can exist in automatic plugging under Spring driving
On the spout of shunt cylinder, when using, the extinguishing chemical being passed through in union joint and shunt cylinder overcomes spring pressure
Push normally closed cap assemblies open to spray from the spout of shunt cylinder, fire-extinguishing function concurrently is unaffected.In non-usage
Under state, normally closed cap assemblies under spring pressure automatic plugging on the spout of shunt cylinder, so, foreign body
Cannot enter in the spout of shower nozzle, the spray orifice in spout will not be blocked, even if laying up for a long time,
Its flow and spurt radius and be also unaffected.
In addition, the present invention provide above-described embodiment in self-closing foam nozzle can also have attached as follows
Plus technical characteristic：
As preferred, in the port of the first end of described union joint, it is provided with baffle, described baffle
Side wall on be provided with multiple guiding gutters, described guiding gutter is the helicla flute being partial to same direction of rotation.
According to the self-closing foam nozzle of the present invention, after extinguishing chemical enters the first end of union joint, will be from leading
Flow through in multiple guiding gutters on the side wall of fluid, guiding gutter is helicla flute, can make to flow through going out of guiding gutter
Fiery agent produces rotating vortex, makes extinguishing chemical be in that divergent shape sprays from spout, can improve extinguishing chemical foam
Area coverage.
As preferred, described normally closed cap assemblies include：Connecting rod, pressure regulation disk, described connecting rod slides axially
It is arranged on described shunting disk, one end of described connecting rod is closure end, and the other end is voltage adjusting end, described company
The spout of described shunt cylinder is stretched out at the closure end of bar, and the voltage adjusting end of described connecting rod stretches into the interior of described union joint
Portion, the closure end of described connecting rod is connected with nozzle cap, and described nozzle cap blocks described spout；Described tune
Platen is connected to the voltage adjusting end of described connecting rod, is provided with described bullet between described pressure regulation disk and described shunting disk
Spring, described spring is sleeved on described connecting rod.
According to the self-closing foam nozzle of the present invention, the closure end of connecting rod and voltage adjusting end are connected to shower nozzle
Lid and pressure regulation disk, pressure regulation disk to union joint Inner extrusion, is made spray by the spring between pressure regulation disk and shunting disk
Skull is pulled to by connecting rod and blocks the spout of shunt cylinder, when pressure regulation disk is subject to the pressure of fire foam,
Spring is compressed, and pressure regulation disk is promoted to spout direction, and nozzle cap will be separated with spout simultaneously, extinguishing chemical
To spray from the gap of nozzle cap and spout edge, meanwhile, gap additionally aids the formation of extinguishing chemical foam.
When the initial pressure of the extinguishing chemical in header is less, the amplitude of pressure regulation disk compression spring is also less, spray
Skull is less with the gap at spout edge, leads to the nozzle of shower nozzle to build the pressure, so extinguishing chemical foam is first
Begin to spurt radius greatly, with the normal operation of system, header internal pressure reaches setting pressure, pipeline
In extinguishing chemical exchange platen pressure increase, inside shower nozzle, due to the inwall of pressure regulation disk and union joint
Gap and nozzle cap and shunt cylinder the building the pressure of the gap at spout edge, will be formed to extinguishing chemical stream
The natural contral of amount, causes the radius that spurts of extinguishing chemical foam to keep constant, when generation pressure in header
During fluctuation, the spurting radius and also can remain unchanged of extinguishing chemical foam.
As preferred, the described connecting rod between described shunting disk and described pressure regulation disk is additionally provided with spacing
Sleeve, the length of described spacing collar is less than the length of described spring, and the diameter of described spacing collar is less than
The diameter of described pressure regulation disk.
According to the self-closing foam nozzle of the present invention, spacing collar is mainly used in the compression distance of limited spring,
The maximum controlling nozzle cap opens amplitude, and the therefore length of sleeve should be less than the length of spring, work as spring
Pressurized pressure regulation disk will be stopped by the edge of sleeve when being retracted to the length equal with spacing collar, and spring will
Will not be compressed again.
As preferred, described spacing collar is sleeved on the outside of described spring.
According to the self-closing foam nozzle of the present invention, spring structure can increase the resistance of fluid, by position-limiting drum
Body is sleeved on the outside of described spring, the extinguishing chemical in union joint can be made to smooth from the outside of sleeve and flow through,
The resistance of spring structure will not be subject to.
As preferred, the one side of described pressure regulation disk is taper seat, and described taper seat is towards described union joint
The second end.
According to the self-closing foam nozzle of the present invention, the taper seat on pressure regulation disk towards the second end of union joint,
I.e. towards baffle, the vortex that extinguishing chemical is formed through baffle will smooth from taper seat and flow through, and can drop
Resistance on low-key platen.
As preferred, the medial wall at the second end of described union joint is circumferentially provided with arc convex, institute
State arc convex and surround a contraction mouth.
According to the self-closing foam nozzle of the present invention, the arc convex on the medial wall at the second end of union joint
One contraction mouth in besieged city, can improve pressure before spraying from spout for the extinguishing chemical, can improve extinguishing chemical foam
Jet length.
Brief description
With specific embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the complete section structural representation of the self-closing foam nozzle of the present invention.
In above in figure：1 union joint；2 shunt cylinders；3 shunting disks；301 spray orifices；4 springs；5 lead
Fluid；501 guiding gutters；6 connecting rods；7 nozzle caps；8 pressure regulation disks；9 spacing collars.
Specific embodiment
With reference to Fig. 1, the present invention proposes a kind of self-closing foam nozzle, for froth fire extinguishing system, including：
Union joint 1, shunt cylinder 2 and normally closed cap assemblies, described union joint 1 has first end and the second end, described
First end is connected with the header of described froth fire extinguishing system；One end of described shunt cylinder 2 is spout, separately
One end is connector, and the connector of described shunt cylinder 2 is connected with the second end of described union joint 1, described
It is provided with shunting disk 3 in the connector of shunt cylinder 2, described shunting disk 3 is provided with multiple spray orifices 301；
Described normally closed cap assemblies are slidedly assemblied on described shunting disk 3, described normally closed cap assemblies and described shunting disk 3
Between be provided with spring 4, described normally closed cap assemblies block described shunt cylinder 2 under described spring 4 drives
Spout.
In the embodiment above, the connector of shunt cylinder 2 is female thread connector, the second of union joint 1
Hold as external screw thread connector, there is in connector ring-shaped step, shunting disk 3 is clamped and fixed in annular table
Between the external screw joint at rank and the second end, normally closed cap assemblies are slidedly assemblied on shunting disk 3, normally closed lid
One end of assembly automatic plugging on the spout of shunt cylinder 2, when using, can lead under spring 4 drives
Entering the extinguishing chemical in union joint 1 and shunt cylinder 2 overcomes spring 4 pressure to push normally closed cap assemblies open from shunt cylinder 2
Spout in spray, fire-extinguishing function concurrently is unaffected.Under non-working condition, normally closed cap assemblies are in bullet
Under spring 4 pressure, on the spout of shunt cylinder 2, so, foreign body cannot enter in its spout automatic plugging,
Spray orifice 301 in spout will not be blocked, even if laying up for a long time, its flow and spurt radius
It is unaffected.
In addition, the present invention provide above-described embodiment in self-closing foam nozzle can also have attached as follows
Plus technical characteristic：
With reference to Fig. 1, according to one embodiment of present invention, set in the port of first end of described union joint 1
It is equipped with baffle 5, the side wall of described baffle 5 is provided with multiple guiding gutters 501, described guiding gutter 501
For being partial to the helicla flute of same direction of rotation.
In the embodiment above, after extinguishing chemical enters the first end of union joint 1, by the side from baffle 5
Flow through in multiple guiding gutters 501 on wall, guiding gutter 501 is helicla flute, can make to flow through guiding gutter 501
Extinguishing chemical produce rotating vortex, make extinguishing chemical from spout be in divergent shape spray, can improve extinguishing chemical bubble
The area coverage of foam.
With reference to Fig. 1, according to one embodiment of present invention, described normally closed cap assemblies include：Connecting rod 6, tune
Platen 8, described connecting rod 6 slides axially and is arranged on described shunting disk 3, and one end of described connecting rod 6 is envelope
Stifled end, the other end is voltage adjusting end, and the spout of described shunt cylinder 2, institute are stretched out in the closure end of described connecting rod 6
The voltage adjusting end stating connecting rod 6 stretches into the inside of described union joint 1, and the closure end of described connecting rod 6 is connected with
Nozzle cap 7, described nozzle cap 7 blocks described spout；Described pressure regulation disk 8 is connected to the tune of described connecting rod 6
Pressure side, is provided with described spring 4 between described pressure regulation disk 8 and described shunting disk 3, described spring 4 is set with
On described connecting rod 6.
In the embodiment above, the closure end of connecting rod 6 and voltage adjusting end are connected to nozzle cap 7 and pressure regulation
Disk 8, pressure regulation disk 8 to union joint 1 Inner extrusion, is made by the spring 4 between pressure regulation disk 8 and shunting disk 3
Nozzle cap 7 is pulled to by connecting rod 6 and blocks the spout of shunt cylinder 2, when pressure regulation disk 8 is subject to fire foam
Pressure when, spring 4 is compressed, and pressure regulation disk 8 is promoted to spout direction, and nozzle cap 7 will be with simultaneously
Spout separates, and extinguishing chemical will spray from the gap of nozzle cap 7 and spout edge, and meanwhile, gap also helps
Formation in extinguishing chemical foam.When the initial pressure of the extinguishing chemical in header is less, pressure regulation disk 8 is pressed
The amplitude of contracting spring 4 is also less, and nozzle cap 7 is less with the gap at spout edge, leads to the spout of shower nozzle
Place builds the pressure, thus extinguishing chemical foam initially to spurt radius big, with the normal operation of system, header
Internal pressure reaches setting pressure, and the pressure that platen 8 exchanged by the extinguishing chemical in pipeline increases, in shower nozzle
Portion, due to the gap of pressure regulation disk 8 and the inwall of union joint 1 and the spray of nozzle cap 7 and shunt cylinder 2
Building the pressure of the gap at mouth edge, will form the natural contral to fire extinguishing agent flux, cause extinguishing chemical foam
Spurt radius keep constant, when in header produce pressure oscillation when, extinguishing chemical foam spurt radius
Can remain unchanged.
According to one embodiment of present invention, the described company between described shunting disk 3 and described pressure regulation disk 8
Spacing collar 9 is additionally provided with bar 6, the length of described spacing collar 9 is less than the length of described spring 4,
The diameter of described spacing collar 9 is less than the diameter of described pressure regulation disk 8.
In the embodiment above, spacing collar 9 is mainly used in the compression distance of limited spring 4, controls spray
The maximum of skull 7 opens amplitude, and the therefore length of sleeve should be less than the length of spring 4, when spring 4
Pressurized when being retracted to the length equal with spacing collar 9, pressure regulation disk 8 will be stopped by the edge of sleeve, bullet
Spring 4 will not be compressed again.
According to one embodiment of present invention, described spacing collar 9 is sleeved on the outside of described spring 4.
In the embodiment above, spring 4 structure can increase the resistance of fluid, and spacing cylinder is sleeved on institute
State the outside of spring 4, the extinguishing chemical in union joint 1 can be made to smooth from the outside of sleeve and flow through, Bu Huishou
Resistance to spring 4 structure.
According to one embodiment of present invention, the one side of described pressure regulation disk 8 is taper seat, described taper seat
The second end towards described union joint 1.
In the embodiment above, the taper seat on pressure regulation disk 8 is towards the second end of union joint 1, i.e. direction
Baffle 5, the vortex that extinguishing chemical is formed through baffle 5 will smooth from taper seat and flow through, it is possible to decrease adjust
Resistance on platen 8.
According to one embodiment of present invention, circumferentially disposed on the medial wall at the second end of described union joint 1
There is arc convex, described arc convex surrounds a contraction mouth.
In the embodiment above, the arc convex on the medial wall at the second end of union joint 1 is encircled a city one and is received
Necking, can improve pressure before spraying from spout for the extinguishing chemical, can improve the jet length of extinguishing chemical foam.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention
The spirit and scope of invention.So, if these modifications of the present invention and modification belong to right of the present invention and want
Ask and its equivalent technologies within the scope of, then the present invention is also intended to comprise these and changes and modification.
Claims (7)
1. a kind of self-closing foam nozzle, for froth fire extinguishing system it is characterised in that including：
Union joint (1), described union joint (1) has first end and the second end, described first end with described
The header of froth fire extinguishing system connects；
Shunt cylinder (2), one end of described shunt cylinder (2) is spout, and the other end is connector, described point
The connector of flow cartridge (2) is connected with the second end of described union joint (1), the company of described shunt cylinder (2)
It is provided with shunting disk (3) in interface, described shunting disk (3) is provided with multiple spray orifices (301)；
Normally closed cap assemblies, described normally closed cap assemblies are slidedly assemblied on described shunting disk (3), described normally closed
It is provided with spring (4), described normally closed cap assemblies are in described spring between cap assemblies and described shunting disk (3)
(4) drive the lower spout blocking described shunt cylinder (2).
2. self-closing foam nozzle according to claim 1 is it is characterised in that described union joint (1)
The port of first end in be provided with baffle (5), the side wall of described baffle (5) is provided with multiple
Guiding gutter (501), described guiding gutter (501) is the helicla flute being partial to same direction of rotation.
3. self-closing foam nozzle according to claim 1 is it is characterised in that described normally closed lid group
Part includes：
Connecting rod (6), described connecting rod (6) slides axially and is arranged on described shunting disk (3), described company
One end of bar (6) is closure end, and the other end is voltage adjusting end, and institute is stretched out at the closure end of described connecting rod (6)
State the spout of shunt cylinder (2), the voltage adjusting end of described connecting rod (6) stretches into the inside of described union joint (1),
Nozzle cap (7) is connected with the closure end of described connecting rod (6), described nozzle cap (7) blocks described spray
Mouthful；
Pressure regulation disk (8), described pressure regulation disk (8) is connected to the voltage adjusting end of described connecting rod (6), described tune
It is provided with described spring (4), described spring (4) suit between platen (8) and described shunting disk (3)
On described connecting rod (6).
4. self-closing foam nozzle according to claim 3 is it is characterised in that described shunting disk (3)
It is additionally provided with spacing collar (9), described limit on described connecting rod (6) and described pressure regulation disk (8) between
The length of position sleeve (9) is less than the length of described spring (4), and the diameter of described spacing collar (9) is little
Diameter in described pressure regulation disk (8).
5. self-closing foam nozzle according to claim 4 is it is characterised in that described spacing collar
(9) it is sleeved on the outside of described spring (4).
6. the self-closing foam nozzle according to any one of claim 3 to 5 it is characterised in that
The one side of described pressure regulation disk (8) is taper seat, and described taper seat is towards the second of described union joint (1)
End.
7. self-closing foam nozzle according to any one of claim 1 to 5 it is characterised in that
It is circumferentially provided with arc convex, described arc convex encloses on the medial wall at the second end of described union joint (1)
Become a contraction mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415000.7A CN106390342A (en) | 2016-06-13 | 2016-06-13 | Self-closing type foam spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415000.7A CN106390342A (en) | 2016-06-13 | 2016-06-13 | Self-closing type foam spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106390342A true CN106390342A (en) | 2017-02-15 |
Family
ID=58006984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415000.7A Pending CN106390342A (en) | 2016-06-13 | 2016-06-13 | Self-closing type foam spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106390342A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964092A (en) * | 2017-04-18 | 2017-07-21 | 西安新竹防务科技有限公司 | Embedded ultrafine dry powder extinguishing installation |
| CN108816540A (en) * | 2018-06-25 | 2018-11-16 | 刘方圆 | A kind of pressure sensitive self-sealing spray head |
| CN112933479A (en) * | 2021-03-04 | 2021-06-11 | 湖北江南专用特种汽车有限公司 | Intelligent large-flow compressed air foam injection fire fighting truck |
| CN114100021A (en) * | 2021-10-18 | 2022-03-01 | 中国北方车辆研究所 | Telescopic protective spray head for vehicle fire extinguishing |
| CN116688407A (en) * | 2023-08-09 | 2023-09-05 | 济俊消防科技有限公司 | Portable automatically regulated's foam fire extinguishing agent generator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964092A (en) * | 2017-04-18 | 2017-07-21 | 西安新竹防务科技有限公司 | Embedded ultrafine dry powder extinguishing installation |
| CN108816540A (en) * | 2018-06-25 | 2018-11-16 | 刘方圆 | A kind of pressure sensitive self-sealing spray head |
| CN108816540B (en) * | 2018-06-25 | 2020-12-22 | 东阳市幻美电子商务有限公司 | Forced induction self sealss shower nozzle |
| CN112933479A (en) * | 2021-03-04 | 2021-06-11 | 湖北江南专用特种汽车有限公司 | Intelligent large-flow compressed air foam injection fire fighting truck |
| CN114100021A (en) * | 2021-10-18 | 2022-03-01 | 中国北方车辆研究所 | Telescopic protective spray head for vehicle fire extinguishing |
| CN116688407A (en) * | 2023-08-09 | 2023-09-05 | 济俊消防科技有限公司 | Portable automatically regulated's foam fire extinguishing agent generator |
| CN116688407B (en) * | 2023-08-09 | 2023-10-20 | 济俊消防科技有限公司 | Portable automatically regulated's foam fire extinguishing agent generator |
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Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |