CN205683450U - Self-closing foam nozzle - Google Patents
Self-closing foam nozzle Download PDFInfo
- Publication number
- CN205683450U CN205683450U CN201620580845.7U CN201620580845U CN205683450U CN 205683450 U CN205683450 U CN 205683450U CN 201620580845 U CN201620580845 U CN 201620580845U CN 205683450 U CN205683450 U CN 205683450U
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- spout
- union joint
- connecting rod
- self
- spring
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Abstract
The utility model 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 the first end and the second end, and described first end is connected with the header of described froth fire extinguishing system；One end of described shunt cylinder is spout, and the other end is connector, and the connector of described shunt cylinder is connected with the second end of described union joint, is provided with shunting disk in the connector of described shunt cylinder, and described shunting disk is provided with multiple spray orifice；Described normally closed cap assemblies is slidedly assemblied on described shunting disk, is provided with spring between described normally closed cap assemblies and described shunting disk, and described normally closed cap assemblies blocks the spout of described shunt cylinder under described Spring driving.Self-closing foam nozzle of the present utility model its spout when not in use can automatically close and can prevent foreign body from entering in its spout, and the spray orifice in spout can be protected to be blocked so that it is flow and spurt radius and be unaffected.
Description
Technical field
This utility model belongs to fire-fighting equipment field, is specifically related to a kind of self-closing foam nozzle.
Background technology
The foam nozzle of current froth fire extinguishing system is all to be covered by generation foam in the spray orifice in its spout
Fire extinguishing, but owing to placing for a long time, have foreign body more or less unavoidably and enter the spout interior blocking spray orifice of foam nozzle,
Cause capacity of sprinkler and/or spurt radius and be all affected.
Can just seem the most necessary by the self-closing foam nozzle of automatic closed spout when non-usage it is therefore proposed that a kind of.
Utility model content
For solving problem above, the utility model proposes a kind of self-closing foam nozzle, for froth fire extinguishing system, bag
Including: union joint, shunt cylinder and normally closed cap assemblies, described union joint has the first end and the second end, described first end and described bubble
The header of foam fire extinguishing system connects；One end of described shunt cylinder is spout, and the other end is connector, the connection of described shunt cylinder
Mouth is connected with the second end of described union joint, is provided with shunting disk in the connector of described shunt cylinder, and described shunting disk is arranged
There is multiple spray orifice；Described normally closed cap assemblies is slidedly assemblied on described shunting disk, described normally closed cap assemblies and described shunting disk it
Between be provided with spring, described normally closed cap assemblies blocks the spout of described shunt cylinder under described Spring driving.
According to self-closing foam nozzle of the present utility model, normally closed cap assemblies can be at automatic plugging under Spring driving in shunting
Cylinder spout on, in use, the extinguishing chemical being passed through in union joint and shunt cylinder overcome spring pressure push open normally closed cap assemblies from
Spraying in the spout of shunt cylinder, fire-extinguishing function concurrently is unaffected.Under non-working condition, normally closed cap assemblies is under spring pressure
Automatic plugging is on the spout of shunt cylinder, and so, foreign body cannot enter in the spout of shower nozzle, and the spray orifice in spout will not be sealed
Stifled, even if laying up for a long time, its flow and spurt radius and be also unaffected.
It addition, the self-closing foam nozzle in above-described embodiment of this utility model offer can also have following additional skill
Art feature:
As preferably, it is provided with baffle in the port of the first end of described union joint, on the sidewall of described baffle
Being provided with multiple guiding gutter, described guiding gutter is the helicla flute being partial to same direction of rotation.
According to self-closing foam nozzle of the present utility model, after extinguishing chemical enters the first end of union joint, will be from baffle
Sidewall on multiple guiding gutters in flow through, guiding gutter is helicla flute, and the extinguishing chemical that can make to flow through guiding gutter produces rotating vortex,
Make extinguishing chemical spray in divergent shape from spout, the area coverage of extinguishing chemical foam can be improved.
As preferably, described normally closed cap assemblies includes: connecting rod, pressure regulation dish, and described connecting rod is axially slidably arranged in described
On shunting disk, one end of described connecting rod is closure end, and the other end is voltage adjusting end, and the closure end of described connecting rod stretches out described shunt cylinder
Spout, the voltage adjusting end of described connecting rod stretches into the inside of described union joint, on the closure end of described connecting rod connect have nozzle cap, institute
State nozzle cap and block described spout；Described pressure regulation dish is connected to the voltage adjusting end of described connecting rod, described pressure regulation dish and described shunting disk
Between be provided with described spring, described spring housing is contained on described connecting rod.
According to self-closing foam nozzle of the present utility model, the closure end of connecting rod and voltage adjusting end be connected to nozzle cap and
Pressure regulation dish, pressure regulation dish to union joint Inner extrusion, is made nozzle cap be pulled to also by connecting rod by the spring between pressure regulation dish and shunting disk
The spout of closure shunt cylinder, when pressure regulation dish is by the pressure of fire foam, spring is compressed, and pressure regulation dish is by spout direction
Promoting, nozzle cap will separate with spout simultaneously, and extinguishing chemical is by the gap ejection from nozzle cap with spout edge, and meanwhile, gap is also
Contribute to the formation of extinguishing chemical foam.When the initial pressure of the extinguishing chemical in header is less, the width of pressure regulation dish compression spring
Spending the least, nozzle cap is less with the gap at spout edge, causes the nozzle of shower nozzle to build the pressure, so extinguishing chemical foam is initial
Spurting radius big, along with the normal operation of system, header internal pressure reaches to set pressure, and the extinguishing chemical in pipeline is to pressure regulation
The pressure of dish increases, inside shower nozzle, due to pressure regulation dish and the gap of the inwall of union joint and nozzle cap and the spray of shunt cylinder
Building the pressure of the gap at mouth edge, will form the natural contral to extinguishing chemical flow, cause the radius that spurts of extinguishing chemical foam to keep
Constant, when producing pressure oscillation in header, the spurting radius and also can remain unchanged of extinguishing chemical foam.
As preferably, the described connecting rod between described shunting disk and described pressure regulation dish is additionally provided with spacing collar, institute
Stating the length length less than described spring of spacing collar, the diameter of described spacing collar is less than the diameter of described pressure regulation dish.
According to self-closing foam nozzle of the present utility model, spacing collar is mainly used in limiting the compression distance of spring, control
The maximum of nozzle cap processed opens amplitude, and therefore the length of sleeve should be less than the length of spring, when spring pressurized is retracted to and limits
During the equal length of sleeve of position, pressure regulation dish will be stopped by the edge of sleeve, and spring will not be compressed again.
As preferably, described spacing collar is sleeved on the outside of described spring.
According to self-closing foam nozzle of the present utility model, spring structure can increase the resistance of fluid, by spacing barrel jacket
It is contained in the outside of described spring, the extinguishing chemical in union joint can be made to smooth from the outside of sleeve and flow through, will not be by spring structure
Resistance.
As preferably, the one side of described pressure regulation dish is taper seat, and described taper seat is towards the second end of described union joint.
According to self-closing foam nozzle of the present utility model, the taper seat on pressure regulation dish is towards the second end of union joint, i.e.
Towards baffle, extinguishing chemical will smooth from taper seat through the eddy current that baffle is formed and flow through, it is possible to decrease the resistance on pressure regulation dish
Power.
As preferably, the medial wall of the second end of described union joint being circumferentially provided with arc convex, described arc is convex
Rise and surround a contraction mouth.
According to self-closing foam nozzle of the present utility model, the arc convex besieged city on the medial wall of the second end of union joint
One contraction mouth, can improve extinguishing chemical pressure before spraying from spout, can improve the jet length of extinguishing chemical foam.
Accompanying drawing explanation
With specific embodiment, this utility model is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the complete section structural representation of self-closing foam nozzle of the present utility model.
In above figure: 1 union joint；2 shunt cylinders；3 shunting disks；301 spray orifices；4 springs；5 baffles；501 guiding gutters；6
Connecting rod；7 nozzle caps；8 pressure regulation dishes；9 spacing collars.
Specific embodiment
With reference to Fig. 1, the utility model 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 the first end and the second end, described first end and described foam fire-fighting
The header of system connects；One end of described shunt cylinder 2 is spout, and the other end is connector, the connector of described shunt cylinder 2 with
Second end of described union joint 1 connects, and is provided with shunting disk 3 in the connector of described shunt cylinder 2, and described shunting disk 3 is arranged
There is multiple spray orifice 301；Described normally closed cap assemblies is slidedly assemblied on described shunting disk 3, described normally closed cap assemblies and described shunting
Being provided with spring 4 between dish 3, described normally closed cap assemblies blocks the spout of described shunt cylinder 2 under described spring 4 drives.
In the embodiment above, the connector of shunt cylinder 2 is female thread connector, and the second end of union joint 1 is external screw thread
Connector, has ring-shaped step in connector, shunting disk 3 be clamped and fixed in ring-shaped step and the second end external screw joint it
Between, normally closed cap assemblies is slidedly assemblied on shunting disk 3, and one end of normally closed cap assemblies can divided by automatic plugging under spring 4 drives
On the spout of flow cartridge 2, in use, the extinguishing chemical being passed through in union joint 1 and shunt cylinder 2 overcomes spring 4 pressure to push normally closed lid open
Assembly sprays from the spout of shunt cylinder 2, and fire-extinguishing function concurrently is unaffected.Under non-working condition, normally closed cap assemblies is at bullet
Under spring 4 pressure, automatic plugging is on the spout of shunt cylinder 2, and so, foreign body cannot enter the spray orifice in its spout, in spout
301 will not be blocked, even if laying up for a long time, and its flow and spurt radius and be also unaffected.
It addition, the self-closing foam nozzle in above-described embodiment of this utility model offer can also have following additional skill
Art feature:
With reference to Fig. 1, according to an embodiment of the present utility model, it is provided with in the port of the first end of described union joint 1
Baffle 5, the sidewall of described baffle 5 is provided with multiple guiding gutter 501, and described guiding gutter 501 is for being partial to same rotation side
To helicla flute.
In the embodiment above, after extinguishing chemical enters the first end of union joint 1, multiple by the sidewall of baffle 5
Flowing through in guiding gutter 501, guiding gutter 501 is helicla flute, the extinguishing chemical flowing through guiding gutter 501 can be made to produce rotating vortex, make to go out
Fire agent sprays in divergent shape from spout, can improve the area coverage of extinguishing chemical foam.
With reference to Fig. 1, according to an embodiment of the present utility model, described normally closed cap assemblies includes: connecting rod 6, pressure regulation dish 8,
Described connecting rod 6 slides axially and is arranged on described shunting disk 3, and one end of described connecting rod 6 is closure end, and the other end is voltage adjusting end,
The closure end of described connecting rod 6 stretches out the spout of described shunt cylinder 2, and the voltage adjusting end of described connecting rod 6 stretches into the interior of described union joint 1
Portion, the closure end of described connecting rod 6 connects and has nozzle cap 7, described nozzle cap 7 to block described spout；Described pressure regulation dish 8 is connected to
The voltage adjusting end of described connecting rod 6, is provided with described spring 4 between described pressure regulation dish 8 and described shunting disk 3, described spring 4 is sleeved on
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 dish 8, pressure regulation dish
Pressure regulation dish 8 to union joint 1 Inner extrusion, is made nozzle cap 7 be pulled to and block by connecting rod 6 point by the spring 4 between 8 and shunting disk 3
The spout of flow cartridge 2, when pressure regulation dish 8 is by the pressure of fire foam, spring 4 is compressed, and pressure regulation dish 8 is pushed away to spout direction
Dynamic, nozzle cap 7 will separate with spout simultaneously, and extinguishing chemical is by the gap ejection from nozzle cap 7 with spout edge, and meanwhile, gap is also
Contribute to the formation of extinguishing chemical foam.When the initial pressure of the extinguishing chemical in header is less, pressure regulation dish 8 compression spring 4
Amplitude is the least, and nozzle cap 7 is less with the gap at spout edge, causes the nozzle of shower nozzle to build the pressure, so extinguishing chemical foam
Initially spurting radius big, along with the normal operation of system, header internal pressure reaches to set pressure, the extinguishing chemical pair in pipeline
The pressure of pressure regulation dish 8 increases, inside shower nozzle, due to pressure regulation dish 8 and the gap of the inwall of union joint 1 and nozzle cap 7 and point
Building the pressure of the gap at the spout edge of flow cartridge 2, by forming the natural contral to extinguishing chemical flow, causes spurting of extinguishing chemical foam
Radius keeps constant, when producing pressure oscillation in header, and the spurting radius and also can remain unchanged of extinguishing chemical foam.
According to an embodiment of the present utility model, on the described connecting rod 6 between described shunting disk 3 and described pressure regulation dish 8
Being additionally provided with spacing collar 9, the length of described spacing collar 9 is less than the length of described spring 4, the diameter of described spacing collar 9
Diameter less than described pressure regulation dish 8.
In the embodiment above, spacing collar 9 is mainly used in limiting the compression distance of spring 4, controls the maximum of nozzle cap 7
Opening amplitude, therefore the length of sleeve should be less than the length of spring 4, when spring 4 pressurized is retracted to equal with spacing collar 9
During length, pressure regulation dish 8 will be stopped by the edge of sleeve, and spring 4 will not be compressed again.
According to an embodiment of the present utility model, 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 described spring 4
Outside, can make the extinguishing chemical in union joint 1 smooth from the outside of sleeve and flow through, will not be by the resistance of spring 4 structure.
According to an embodiment of the present utility model, the one side of described pressure regulation dish 8 is taper seat, and described taper seat is towards institute
State the second end of union joint 1.
In the embodiment above, the taper seat on pressure regulation dish 8, towards the second end of union joint 1, i.e. towards baffle 5, goes out
Fire agent will smooth through the eddy current that baffle 5 is formed from taper seat to be flow through, it is possible to decrease the resistance on pressure regulation dish 8.
According to an embodiment of the present utility model, the medial wall of the second end of described union joint 1 is circumferentially provided with arc
Shape is protruding, and described arc convex surrounds a contraction mouth.
In the embodiment above, one contraction mouth in arc convex besieged city on the medial wall of the second end of union joint 1, can carry
High extinguishing chemical pressure before spraying from spout, can improve the jet length of extinguishing chemical foam.
Obviously, those skilled in the art can carry out various change and modification without deviating from this practicality to this utility model
Novel spirit and scope.So, if of the present utility model these amendment and modification belong to this utility model claim and
Within the scope of its equivalent technologies, then this utility model is also intended to comprise these change and modification.
Claims (7)
1. a self-closing foam nozzle, for froth fire extinguishing system, it is characterised in that including:
Union joint (1), described union joint (1) has the first end and the second end, described first end and described froth fire extinguishing system
Header connects；
Shunt cylinder (2), one end of described shunt cylinder (2) is spout, and the other end is connector, the connector of described shunt cylinder (2)
It is connected with the second end of described union joint (1), in the connector of described shunt cylinder (2), is provided with shunting disk (3), described shunting disk
(3) multiple spray orifice (301) it is provided with on；
Normally closed cap assemblies, described normally closed cap assemblies is slidedly assemblied on described shunting disk (3), described normally closed cap assemblies and described point
Being provided with spring (4) between flow table (3), described normally closed cap assemblies blocks described shunt cylinder (2) under described spring (4) drives
Spout.
Self-closing foam nozzle the most according to claim 1, it is characterised in that the end of the first end of described union joint (1)
It is provided with baffle (5) in Kou, the sidewall of described baffle (5) is provided with multiple guiding gutter (501), described guiding gutter
(501) for being partial to the helicla flute of same direction of rotation.
Self-closing foam nozzle the most according to claim 1, it is characterised in that described normally closed cap assemblies includes:
Connecting rod (6), described connecting rod (6) slides axially and is arranged on described shunting disk (3), and one end of described connecting rod (6) is closure
End, the other end is voltage adjusting end, and the closure end of described connecting rod (6) stretches out the spout of described shunt cylinder (2), the tune of described connecting rod (6)
Pressure side stretches into the inside of described union joint (1), and the closure end of described connecting rod (6) connects nozzle cap (7), described nozzle cap
(7) described spout is blocked；
Pressure regulation dish (8), described pressure regulation dish (8) is connected to the voltage adjusting end of described connecting rod (6), described pressure regulation dish (8) and described shunting
Being provided with described spring (4) between dish (3), described spring (4) is sleeved on described connecting rod (6).
Self-closing foam nozzle the most according to claim 3, it is characterised in that described shunting disk (3) and described pressure regulation dish
(8) being additionally provided with spacing collar (9) on the described connecting rod (6) between, the length of described spacing collar (9) is less than described spring
(4) length, the diameter of described spacing collar (9) is less than the diameter of described pressure regulation dish (8).
Self-closing foam nozzle the most according to claim 4, it is characterised in that described spacing collar (9) is sleeved on described
The outside of spring (4).
6. according to the self-closing foam nozzle according to any one of claim 3 to 5, it is characterised in that described pressure regulation dish (8)
One side is taper seat, and described taper seat is towards the second end of described union joint (1).
Self-closing foam nozzle the most according to any one of claim 1 to 5, it is characterised in that described union joint (1)
Being circumferentially provided with arc convex on the medial wall of the second end, described arc convex surrounds a contraction mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580845.7U CN205683450U (en) | 2016-06-13 | 2016-06-13 | Self-closing foam nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580845.7U CN205683450U (en) | 2016-06-13 | 2016-06-13 | Self-closing foam nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205683450U true CN205683450U (en) | 2016-11-16 |
Family
ID=57428475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620580845.7U Active CN205683450U (en) | 2016-06-13 | 2016-06-13 | Self-closing foam nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205683450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390342A (en) * | 2016-06-13 | 2017-02-15 | 西安新竹防灾救生设备有限公司 | Self-closing type foam spray nozzle |
| CN117817224A (en) * | 2024-03-06 | 2024-04-05 | 中铁二十二局集团第四工程有限公司 | Welding equipment for tunnel construction |
-
2016
- 2016-06-13 CN CN201620580845.7U patent/CN205683450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390342A (en) * | 2016-06-13 | 2017-02-15 | 西安新竹防灾救生设备有限公司 | Self-closing type foam spray nozzle |
| CN117817224A (en) * | 2024-03-06 | 2024-04-05 | 中铁二十二局集团第四工程有限公司 | Welding equipment for tunnel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Self-closing foam nozzle Effective date of registration: 20170303 Granted publication date: 20161116 Pledgee: Fengxiang Shaanxi rural commercial bank Limited by Share Ltd Pledgor: Xi'an Xinzhu Fire and Rescue Equipment Co., Ltd. Registration number: 2017990000150 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190705 Granted publication date: 20161116 Pledgee: Fengxiang Shaanxi rural commercial bank Limited by Share Ltd Pledgor: Xi'an Xinzhu Fire and Rescue Equipment Co., Ltd. Registration number: 2017990000150 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |