CN209645719U - A kind of New-type fire-fighting gun - Google Patents
A kind of New-type fire-fighting gun Download PDFInfo
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- CN209645719U CN209645719U CN201920164278.0U CN201920164278U CN209645719U CN 209645719 U CN209645719 U CN 209645719U CN 201920164278 U CN201920164278 U CN 201920164278U CN 209645719 U CN209645719 U CN 209645719U
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- water diversing
- diversing sheet
- water
- attachment base
- regulation pipe
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Abstract
The utility model relates to a kind of New-type fire-fighting guns, it is characterised in that: be made of pipette tips and the small of the stock；The pipette tips include outer tube, regulation pipe, the first water diversing sheet, the first water diversing sheet fixed block, elastic device, the second water diversing sheet, divide water core, attachment base.Fire branch recoil provided by the utility model is small；Under 7.0bar pressure, it is only necessary to which a bit manipulation person can flexible operating；Fire branch internal structure uses automatic flow regulating device, without human intervention, convenient and efficient；The utility model because that can be mixed into air automatically, therefore sprayable a variety of extinguishing fluids, comprising: water, class A foam, B class A foam A, CAFS；Simultaneously because large quantity of air can be automatically drawn into when injection liquid, be conducive to cool down, improves fire-fighting efficiency；Simultaneously this Fire branch structure it is simple, after use without rinse, it is non-maintaining.
Description
Technical field
The utility model relates to small, the easy to operate Fire branch of a kind of Fire branch more particularly to a kind of recoil.
Background technique
Jetting or the tools of other extinguishing fluids is sprayed when Fire branch is fire extinguishing, it is close with water band connection can to hold injection with it
The substantial water flow of collection or extinguishing fluid injection.Has many advantages, such as far firing range, easy to operate.The stream of the injection liquid of conventional Fire branch
Measure size need after adjusting fluid pressure, adjusted by the discharge area in manual adjustment Fire branch, the structure operation compared with
It is cumbersome；As shown in Figure 1, being that can be manually rotated spring compression means, increase or reduce discharge area, to adjust the stream of water flow
Amount, it is troublesome in poeration and increase bigger recoil to the natively big Fire branch of recoil, increase Fire branch operation difficulty.
Therefore providing the Fire branch that a kind of recoil is small, easy to operate is this practicability type problem to be solved.
Summary of the invention
The utility model overcomes the deficiencies in the prior art, provides the Fire branch that a kind of recoil is small, easy to operate.
In order to achieve the above objectives, the technical solution adopted in the utility model are as follows: provide a kind of New-type fire-fighting gun, feature
It is: is made of pipette tips and the small of the stock；The pipette tips include outer tube, regulation pipe, the first water diversing sheet, the first water diversing sheet fixed block, bullet
Property device, divides water core, attachment base at the second water diversing sheet；
The setting of first water diversing sheet one end has the interconnecting piece of flange, the regulation pipe front setting and the first water diversing sheet
The first mounting hole that interconnecting piece matches, the first water diversing sheet fixed block side setting match with the first water diversing sheet interconnecting piece
Fixing groove, the fixing groove connects with the first water diversing sheet fixed block front end face；First mounting hole and fixed groove location
Accordingly；Described point of water core includes coniform water diversing head and connecting rod；The attachment base is annular shape；Second water diversing sheet one
End setting has a first connecting portion of flange, regulation pipe rear portion setting and the second water diversing sheet first connecting portion match the
Two mounting holes, the connecting rod side setting slippage slot for dividing water core, the second water diversing sheet first connecting portion can be embedded in cunning
It moves slot and is moved in slippage slot along slippage slot length direction；Second mounting hole is corresponding with sliding groove location；Described second
Second connecting portion is arranged in the water diversing sheet other end, and the second water diversing sheet second connecting portion is arranged in described attachment base one end end face can be just
The mounting groove of insertion；First mounting hole and the second mounting hole are staggered on regulation pipe circumferencial direction；
The interconnecting piece of first water diversing sheet is inserted into the first mounting hole, is exposed to the first water diversing sheet ontology outside regulation pipe, even
Socket part is located in regulation pipe, while the flange of interconnecting piece resists on the inside of regulation pipe；The first water diversing sheet fixed block insertion is adjusted
In pipe, makes the interconnecting piece of the first water diversing sheet while being placed in the fixing groove of the first water diversing sheet fixed block；First point of water
Piece fixed block is made of elastic material, and outer surface can be fitted closely with pipe internal surface is adjusted；Elastic device one end resists
One water diversing sheet fixed block, one end resist a point free end for the connecting rod of water core；The first connecting portion of second water diversing sheet is inserted into
Second mounting hole is exposed to the second water diversing sheet ontology outside regulation pipe, and first connecting portion is located in regulation pipe, and first connecting portion
Flange resists on the inside of regulation pipe；First connecting portion is inserted into slippage slot simultaneously, and resists slippage slot front end；Second point of water
The second connecting portion of piece is inserted into the mounting groove；The water diversing head at least partly blocks the hollow space of attachment base；It is described outer
Pipe by the regulation pipe, the first water diversing sheet, the first water diversing sheet fixed block, elastic device, the second water diversing sheet, water core is divided to be wrapped in
It is interior, and be connected by bindiny mechanism with attachment base.
As a preferred embodiment, the attachment base is the annulus for becoming outer diameter；The outer tube passes through bindiny mechanism and connection
The big one end of seat outer diameter is connected, and the mounting groove is arranged on the end face of the big one end of attachment base outer diameter, and with its side
Perforation；It is arranged on changeover portion between the small one end in the attachment base outer diameter big one end and outer diameter axially parallel with attachment base
Air suck through-hole.
As a preferred embodiment, the water diversing head can just be fully inserted into the hollow space of the attachment base, will be hollow
It blocks completely part.
As a preferred embodiment, the blade of first water diversing sheet and the second water diversing sheet is disposed as arc-shaped.
As a preferred embodiment, first water diversing sheet, the second water diversing sheet are disposed as 3 pieces.
As a kind of more preferable scheme, the first mounting hole, the second mounting hole are disposed as 3；Mounting groove, slippage slot are all provided with
Set 3.
As a preferred embodiment, the elastic device is made of the first spring, second spring and cushion block；The cushion block
It is set to the first spring, among second spring, and affixed with the first spring, second spring.
As a preferred embodiment, the bindiny mechanism by the blind hole being arranged on attachment base, the through-hole being arranged on outer tube with
And screw composition.
As a preferred embodiment, the pipette tips and the small of the stock are cooperated affixed by internal and external threads.
As a kind of more preferable scheme, gasket is set between the pipette tips and the small of the stock.
The advantageous effects of the utility model are:
1, the utility model recoil is small；Under 7.0bar pressure, compared to the 3 people operation of conventional Fire branch palpus, this is practical
It is novel only to need a bit manipulation person flexible operating；
2, internal structure uses automatic flow regulating device, without human intervention, convenient and efficient；
3, the utility model because that can be mixed into air automatically；Therefore one or two can only be sprayed compared to conventional Fire branch
Extinguishing fluid, the sprayable extinguishing fluid of this Fire branch have: water, class A foam, B class A foam A, CAFS；Simultaneously because injection liquid
When can be automatically drawn into large quantity of air, be conducive to cool down, improve fire-fighting efficiency；
4, structure is simple, after use without rinse, it is non-maintaining.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the background technique schematic diagram of the utility model.
Fig. 2 is the appearance diagram of the preferred embodiment of the utility model.
Fig. 3 is the detonation configuration figure of the pipette tips of the utility model.
Fig. 4 is the assembling schematic diagram of the pipette tips of the utility model (without outer tube and regulation pipe).
Fig. 5 is the assembling schematic diagram of the pipette tips of the utility model (without outer tube).
Fig. 6 is the appearance diagram of the pipette tips of the utility model.
Fig. 7 is the appearance diagram of the attachment base of the utility model.
Fig. 8 is the appearance diagram of the small of the stock of the utility model.
Fig. 9 is the appearance diagram of the water diversing sheet of the utility model.
In figure: 1 being pipette tips, 11 be outer tube, 12 be regulation pipe, 121 be the first mounting hole, 122 be the second mounting hole, 13 be
First water diversing sheet, 131 for the first water diversing sheet interconnecting piece, 131a are the flange of the first water diversing sheet interconnecting piece, 132 are the first water diversing sheet
Ontology, 133 be the first water diversing sheet blade, 14 be the first water diversing sheet fixed block, 142 be the first water diversing sheet fixed block front end face, 15
It is the first spring for elastic device, 151,152 be second spring, 153 be cushion block, 16 be the second water diversing sheet, 161 is second point of water
Piece first connecting portion, 161a are the flange of the second water diversing sheet first connecting portion, 162 are the second water diversing sheet second connecting portion, 163 are
Second water diversing sheet ontology, 164 be the second water diversing sheet blade, 17 for divide water core, 171 be water diversing head, 172 be connecting rod, 173 be sliding
Slot, 173a is moved to be slippage slot front end, 18 be attachment base, 181 be the hollow space of attachment base, 182 be that attachment base outer diameter is big
One end, 183 be the small one end of attachment base outer diameter, 184 be changeover portion, 185 be mounting groove, 186 be air sucking through-hole, 191 be
Blind hole on attachment base, 192 be through-hole on outer tube, 193 be screw, 2 be the small of the stock, 21 be the through-hole of the small of the stock, 3 be gasket.
Specific embodiment
The utility model is described in further detail presently in connection with drawings and examples, these attached drawings are simplified
Schematic diagram only illustrates the basic structure of the utility model in a schematic way, therefore it only shows structure related with the utility model
At.
As shown in figs 1-9, a kind of New-type fire-fighting gun is made of pipette tips 1 and the small of the stock 2；Pipette tips 1 and the small of the stock 2 pass through inside and outside spiral shell
Line cooperate and it is affixed；Gasket 3 is set between pipette tips 1 and the small of the stock 2, is primarily served close when connecting pipette tips 1 and the small of the stock 2
Envelope effect.The small of the stock 2 is equipped with the perforation small of the stock 2, the through-hole 21 passed through for water flow or other extinguishing fluids.
Pipette tips 1 include outer tube 11, regulation pipe 12, the first water diversing sheet 13, the first water diversing sheet fixed block 14, elastic device 15,
Second water diversing sheet 16 divides water core 17, attachment base 18.
The setting of first water diversing sheet, 13 one end has the interconnecting piece 131 of flange 131a, cylindrical 12 front of regulation pipe setting
The first mounting hole 121 to match with the first water diversing sheet interconnecting piece 131,14 side of the first water diversing sheet fixed block are arranged and first point
The fixing groove (not shown due to assembling) that water piece interconnecting piece 131 matches, fixing groove and 14 front end face of the first water diversing sheet fixed block
142 connect.
Dividing water core 17 includes coniform water diversing head 171 and connecting rod 172；Attachment base 18 is to become outer diameter annular shape, is had
For the hollow space 181 that water flow or other extinguishing fluids pass through, hollow space 181 and 21 size of small of the stock through-hole and position are homogeneous
It is corresponding；Water diversing head 171 can just be fully inserted into the hollow space 181(i.e. radial cross-sectional area of hollow space 181 of attachment base 18
It is identical as 171 maximum radial area of section of water diversing head).
The setting of second water diversing sheet, 16 one end has the first connecting portion 161 of flange 161a, 12 rear portion of regulation pipe setting and the
The second mounting hole 122 that two water diversing sheet first connecting portions 161 match divides 172 side of connecting rod of water core 17 that slippage slot is arranged
173, the second water diversing sheet first connecting portion 161 can just be embedded in slippage slot 173 and along 173 length direction of slippage slot in slippage slot
It is moved in 173；Second connecting portion 162, big 182 end face of one end setting of 18 outer diameter of attachment base is arranged in second water diversing sheet, 16 other end
The mounting groove 185 that second water diversing sheet second connecting portion 162 can be just inserted into, mounting groove 185 and 18 outer diameter of attachment base it is big one
182 sides are held to penetrate through；First mounting hole 121 and the second mounting hole 122 are staggered on 12 circumferencial direction of regulation pipe.
When pipette tips 1 are assembled: the first water diversing sheet interconnecting piece 131 is inserted into the first mounting hole 121, makes the first water diversing sheet ontology 132
It is exposed to outside regulation pipe 12, interconnecting piece 131 is located in regulation pipe 12, while interconnecting piece flange 131a resists 12 inside of regulation pipe；The
One water diversing sheet fixed block 14 is inserted into regulation pipe 12, is made the first water diversing sheet interconnecting piece 131 while being placed in the first water diversing sheet fixed block
In 14 fixing groove；First water diversing sheet fixed block 14 be it is cylindric, be made of elastic material (such as rubber), radial section it is straight
The first water diversing sheet fixed block 14 can be inserted in regulation pipe 12 slightly larger than the interior diameter of the radial section of regulation pipe 12 in diameter, but
Flexible deformation can be generated；14 outer surface of the first water diversing sheet fixed block and 12 inner surface of regulation pipe can be made to fit closely and support in this way
Firmly, while the first water diversing sheet interconnecting piece 131 for being placed in it of fixing groove is clamped, so that the first water diversing sheet 13 is fixedly secured；
First mounting hole 121 is corresponding with fixed groove location, guarantees that the first water diversing sheet interconnecting piece 131 can be inserted into the first mounting hole simultaneously
121 and fixing groove；Elastic device 15 is in compressive state, and one end resists the first water diversing sheet fixed block 14, one end resists point water core and connects
The free end of extension bar 172；Second water diversing sheet first connecting portion 161 is inserted into the second mounting hole 122, makes the second water diversing sheet ontology 163
It is exposed to outside regulation pipe 12, first connecting portion 161 is located in regulation pipe 12, and first connecting portion flange 161a is resisted in regulation pipe 12
Side；Elasticity of compression device 15 simultaneously is inserted into first connecting portion 161 in slippage slot 173, and resists 173 front end of slippage slot
173a；Second mounting hole 122 is corresponding with 173 position of slippage slot, guarantees that the second water diversing sheet first connecting portion 161 can be inserted into simultaneously
Second mounting hole 122 and slippage slot 173；Second water diversing sheet second connecting portion 162 is inserted into the mounting groove 185 (due at this time
It is in compressive state with the elastic device 15 for dividing water core 17 to be connected, can be divided water core 17 1 thrusts；The thrust can pass to
Second water diversing sheet first connecting portion 161, and the second water diversing sheet second connecting portion 162 is fixed on mounting groove 185, therefore the two matches
Stablize the second water diversing sheet 16 to fix)；Water diversing head 171 is inserted into the hollow space 181 of attachment base, and hollow space 181 is hidden completely
Gear；Outer tube 11 by regulation pipe 12, the first water diversing sheet 13, the first water diversing sheet fixed block 14, elastic device 15, the second water diversing sheet 16,
Divide water core 17 to be wrapped in interior, and is connected by bindiny mechanism one end 182 big with attachment base outer diameter.
In addition it is arranged and connect on the changeover portion 184 between the big one end 182 of attachment base outer diameter and the small one end 183 of outer diameter
Seat 18 is axial parallel, and the air of the big one end 182 of perforation attachment base outer diameter sucks through-hole 186.It is arranged on attachment base 18 empty
The effect that aspiration enters through-hole 186 is: when spraying liquid, because of siphon principle, can suck through-hole 186 by air and suck greatly
Air is measured into pipette tips 1, and is mixed into air in liquid, nitrogen (N is contained in air2) account for about 78%, cooling can be played, improved
The effect of fire-fighting efficiency.
First water diversing sheet 13, the second water diversing sheet 16 are disposed as 3 pieces.Corresponding first mounting hole 121, the second mounting hole
122 are disposed as 3；Mounting groove 185, slippage slot 173 are respectively provided with 3.Due to the first mounting hole 121 and the second mounting hole 122
It is staggered on 12 circumferencial direction of regulation pipe, and the first mounting hole 121, the second mounting hole 122 are separately positioned on regulation pipe 12
Front-end and back-end, so that the first water diversing sheet 13 mounted thereto, 16 position of the second water diversing sheet is interlocked, be conducive to divide water flow
In multiply, to improve the flow velocity and spray distance of water flow.The blade (133,164) of first water diversing sheet 13 and the second water diversing sheet 16
It is disposed as arc-shaped.The pressure loss is reduced when main segmentation water flow, makes water flow is more stable to eject, improves jet length
From.
Elastic device 15 is made of the first spring 151, second spring 152 and cushion block 153；Cushion block 153 is set to first
Among spring 151, second spring 152, and it is affixed with the first spring 151, second spring 152.The setting is avoided with a bullet
Spring is too long and causes spring unstability, leads to 17 deviation center of point water core.
Bindiny mechanism by be arranged on the big one end 182 of 18 outer diameter of attachment base blind hole 191, be arranged in it is logical on outer tube 11
Hole 192 and screw 193 form.By the way that screw 193 is inserted into the blind hole 191 on attachment base 18 and the through-hole on outer tube 11 simultaneously
192, attachment base 18 and outer tube 11 is fixed.
There is annular knurl on 11 surface of outer tube and 18 surface of attachment base, for anti-skidding, so that operator preferably operates with.
When use: pipette tips 1 are installed, later by screw thread on the small one end 183 of 18 outer diameters of attachment base of pipette tips 1 and
Screw thread on the small of the stock 2 matches pipette tips 1 and the small of the stock 2 are affixed；Due to attachment base hollow space 181 and 21 size of small of the stock through-hole and
Position is corresponding, and 1 attachment base hollow space 181 of pipette tips is connected with the through-hole 21 of the small of the stock 2 at this time.Outside water or extinguishing fluid
Body is entered the hollow space 181 of 1 attachment base of pipette tips by through-hole 21, with 171 phase of water diversing head for being placed in attachment base hollow space 181
It meets；Due to the effect of hydraulic pressure (or fluid pressure), 171 1 motive forces of water diversing head are given, with the elasticity for dividing water core 17 to be connected
Device 15 is further compressed, and divides water core 17 whole far from attachment base 18, and consequent is that 18 discharge area of attachment base increases,
Water/extinguishing fluid flow also increases.When hydraulic pressure (or fluid pressure) is reduced, elastic device rebound divides water core 17 and connects
18 gap of joint chair reduces, and 18 discharge area of attachment base reduces, and water/extinguishing fluid flow also reduces.The setting can adjust automatically
Fluid flow is saved, while having positive effect to the reduction of recoil when spraying liquid.The design of 171 cone of water diversing head is to entrance
The water flow of attachment base 18 is dispersed, and the water flow after dispersion is projected close to 11 inner wall of outer tube, has dispersed the active force of water flow, significantly
Reduce recoil when injection liquid.
It is above enlightenment according to the desirable embodiment of the utility model, through the above description, related personnel is complete
Various changes and amendments can be carried out in the range of without departing from this item utility model technical idea.This item utility model
Technical scope be not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (10)
1. a kind of New-type fire-fighting gun, it is characterised in that: be made of pipette tips and the small of the stock；The pipette tips include outer tube, regulation pipe, first
Water diversing sheet, elastic device, the second water diversing sheet, divides water core, attachment base at the first water diversing sheet fixed block；
The setting of first water diversing sheet one end has the interconnecting piece of flange, and the regulation pipe front setting is connect with the first water diversing sheet
The first mounting hole that portion matches, the first water diversing sheet fixed block side setting are consolidated with what the first water diversing sheet interconnecting piece matched
Determine slot, the fixing groove connects with the first water diversing sheet fixed block front end face；First mounting hole is corresponding with fixed groove location；
Described point of water core includes coniform water diversing head and connecting rod；The attachment base is annular shape；Second water diversing sheet one end is set
Set the first connecting portion with flange, the second peace that the regulation pipe rear portion setting matches with the second water diversing sheet first connecting portion
Hole, the connecting rod side setting slippage slot for dividing water core are filled, the second water diversing sheet first connecting portion can be embedded in slippage slot
And it is moved in slippage slot along slippage slot length direction；Second mounting hole is corresponding with sliding groove location；Second point of water
Second connecting portion is arranged in the piece other end, and the second water diversing sheet second connecting portion, which is arranged, in described attachment base one end end face to be just inserted into
Mounting groove；First mounting hole and the second mounting hole are staggered on regulation pipe circumferencial direction；
The interconnecting piece of first water diversing sheet is inserted into the first mounting hole, is exposed to the first water diversing sheet ontology outside regulation pipe, interconnecting piece
In regulation pipe, while the flange of interconnecting piece resists on the inside of regulation pipe；In the first water diversing sheet fixed block insertion regulation pipe,
Make the interconnecting piece of the first water diversing sheet while being placed in the fixing groove of the first water diversing sheet fixed block；First water diversing sheet is fixed
Block is made of elastic material, and outer surface can be fitted closely with pipe internal surface is adjusted；Elastic device one end resists first point of water
Piece fixed block, one end resist a point free end for the connecting rod of water core；The second peace of first connecting portion insertion of second water diversing sheet
Hole is filled, is exposed to the second water diversing sheet ontology outside regulation pipe, first connecting portion is located in regulation pipe, and the flange of first connecting portion supports
Firmly on the inside of regulation pipe；First connecting portion is inserted into slippage slot simultaneously, and resists slippage slot front end；The of second water diversing sheet
Two interconnecting pieces are inserted into the mounting groove；The water diversing head at least partly blocks the hollow space of attachment base；The outer tube is by institute
It states regulation pipe, the first water diversing sheet, the first water diversing sheet fixed block, elastic device, the second water diversing sheet, divide in water core is wrapped in, and lead to
Bindiny mechanism is crossed to be connected with attachment base.
2. New-type fire-fighting gun according to claim 1, it is characterised in that: the attachment base is the annulus for becoming outer diameter；It is described
Outer tube is connected by bindiny mechanism one end big with attachment base outer diameter, and the big one end of attachment base outer diameter is arranged in the mounting groove
End face on, and with its side penetrate through；On changeover portion between the small one end in the attachment base outer diameter big one end and outer diameter
It is arranged that axially parallel air sucks through-hole with attachment base.
3. New-type fire-fighting gun according to claim 1, it is characterised in that: the water diversing head can just be fully inserted into the company
The hollow space of joint chair blocks hollow space completely.
4. New-type fire-fighting gun according to claim 1, it is characterised in that: the sword of first water diversing sheet and the second water diversing sheet
Portion is disposed as arc-shaped.
5. New-type fire-fighting gun according to claim 1, it is characterised in that: first water diversing sheet, the second water diversing sheet are all provided with
It is set to 3 pieces.
6. New-type fire-fighting gun according to claim 5, it is characterised in that: the first mounting hole, the second mounting hole are disposed as 3
It is a；Mounting groove, slippage slot are respectively provided with 3.
7. New-type fire-fighting gun according to claim 1, it is characterised in that: the elastic device is by the first spring, the second bullet
Spring and cushion block composition；The cushion block is set to the first spring, among second spring, and solid with the first spring, second spring
It connects.
8. -7 any New-type fire-fighting gun according to claim 1, it is characterised in that: the bindiny mechanism on attachment base by setting
Through-hole and the screw composition being arranged in the blind hole set, outer tube.
9. -7 any New-type fire-fighting gun according to claim 1, it is characterised in that: the pipette tips and the small of the stock pass through inside and outside spiral shell
Line cooperate and it is affixed.
10. New-type fire-fighting gun according to claim 9, it is characterised in that: gasket is arranged between the pipette tips and the small of the stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920164278.0U CN209645719U (en) | 2019-01-30 | 2019-01-30 | A kind of New-type fire-fighting gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920164278.0U CN209645719U (en) | 2019-01-30 | 2019-01-30 | A kind of New-type fire-fighting gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209645719U true CN209645719U (en) | 2019-11-19 |
Family
ID=68523444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920164278.0U Active CN209645719U (en) | 2019-01-30 | 2019-01-30 | A kind of New-type fire-fighting gun |
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| Country | Link |
|---|---|
| CN (1) | CN209645719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117839135A (en) * | 2024-03-07 | 2024-04-09 | 泉州市云航消防设备有限公司 | Fire-fighting spray gun with hand-off protection function |
-
2019
- 2019-01-30 CN CN201920164278.0U patent/CN209645719U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117839135A (en) * | 2024-03-07 | 2024-04-09 | 泉州市云航消防设备有限公司 | Fire-fighting spray gun with hand-off protection function |
| CN117839135B (en) * | 2024-03-07 | 2024-05-07 | 泉州市云航消防设备有限公司 | Fire-fighting spray gun with hand-off protection function |
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