CN207041779U - A kind of new foam lance - Google Patents
A kind of new foam lance Download PDFInfo
- Publication number
- CN207041779U CN207041779U CN201720990622.2U CN201720990622U CN207041779U CN 207041779 U CN207041779 U CN 207041779U CN 201720990622 U CN201720990622 U CN 201720990622U CN 207041779 U CN207041779 U CN 207041779U
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- jet
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- hand member
- internal diameter
- left end
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Abstract
The utility model discloses a kind of new foam lance, including the pipe joint being sequentially connected from left to right, gun body, connecting tube, mix liquid pipe and jet pipe, the right-hand member of the gun body is provided with orifice plate, the orifice plate has multiple tap holes, inner chamber is sequentially formed from left to right in the connecting tube, first jet and second nozzle, the first jet and second nozzle are in horn-like, the maximum inner diameter of the first jet is less than the internal diameter of inner chamber, and the internal diameter of the first jet left end is more than the internal diameter of right-hand member, the minimum diameter of the second nozzle is more than the maximum inner diameter of first jet, the internal diameter of the second nozzle left end is less than the internal diameter of right-hand member, the periphery of the connecting tube is provided with several suction holes connected with second nozzle, the mixing liquid pipe is internally formed foam chamber.The utility model is after improvement so that mixed liquor and air mixing are more uniform, while foam chamber provides bigger foaming space for mixed liquor, final so that the foaming effect of mixed liquor is more preferable.
Description
Technical field
Fire-fighting equipment field is the utility model is related to, in particular to a kind of new foam lance.
Background technology
Foam lance is portable fire-fighting equipment, can be connected with tube tooth interface with fire hose coupling, by fire-fighting pressure with
Foam solution mixes and sucks air, produces air foam.Existing foam lance mainly includes the rubber being sequentially connected from left to right
Rubber hose coupling, gun body, connecting tube, air intake duct and jet pipe, the periphery of the air intake duct are provided with several suction holes, the connecting tube
Inside be diameter is gradually reduced from left to right passage, the passage connects with suction hole, when foam mixing liquid passes through passage
Air enters from suction hole to be sprayed so as to produce air foam from jet pipe.Existing foam lance mixes in foam mixing liquid and air
Directly being sprayed after conjunction from jet pipe, so that foam mixing liquid mixes uneven with air, and telling on for foam is bad, so that
Influence extinguishing effect.
Utility model content
Provided by the utility model is a kind of new foam lance, and its main purpose is to overcome existing foam lance
Foam tells on the problem of bad.
In order to solve above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of new foam lance, including be sequentially connected from left to right pipe joint, gun body, connecting tube, mixing liquid pipe
And jet pipe, the right-hand member of the gun body are provided with orifice plate, the orifice plate has multiple tap holes, in the connecting tube from left to right successively
Inner chamber, first jet and second nozzle are formed, the first jet and second nozzle are in horn-like, and the first jet is most
Large diameter is less than the internal diameter of inner chamber, and the internal diameter of the first jet left end is more than the internal diameter of right-hand member, the minimum of the second nozzle
Internal diameter is more than the maximum inner diameter of first jet, and the internal diameter of the second nozzle left end is less than the internal diameter of right-hand member, the connecting tube it is outer
It is provided with several suction holes connected with second nozzle week, the mixing liquid pipe is internally formed foam chamber.
Further, the right-hand member of the pipe joint is threadedly coupled with the left end of gun body, the right-hand member and connecting tube of the gun body
Left end threaded connection, the right-hand member of the connecting tube is connected by screw with mixing the left end of liquid pipe, the right-hand member of the mixing liquid pipe and
The left end threaded connection of jet pipe.
From above-mentioned to description of the present utility model, compared to the prior art, the utility model has the following advantages that：This
Utility model structure is novel, ingenious in design, and mixed liquor enters inner chamber from tap hole of the gun body through orifice plate, and after through first jet and
Second nozzle enters in foam chamber, and when mixed liquor passes through second nozzle, air enters from suction hole to be mixed into mixed liquor
Foam chamber is foamed, and last caused foam sprays from jet pipe.The tap hole is disperseed mixed liquor, makes mixed liquor shape
Into eddy flow shape, because the internal diameter of first jet left end is more than the internal diameter of right-hand member, the mixed liquor of eddy flow shape enters the through first jet
During two nozzles, its caused negative pressure is bigger, and now air is sucked into from suction hole and mixed with mixed liquor, because second nozzle is left
The internal diameter at end is less than the internal diameter of right-hand member, therefore can strike the interior of foam chamber when entering foam chamber after mixed liquor and air mixing
Wall, and sprayed after more fully being foamed in foam chamber from jet pipe.The utility model is after improvement so that mixed liquor and sky
Gas mixing is more uniform, while foam chamber provides bigger foaming space for mixed liquor, the final foaming effect for causing mixed liquor
More preferably.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Embodiment
Reference picture 1.A kind of new foam lance, including be sequentially connected from left to right pipe joint 1, gun body 2, connecting tube
3rd, liquid pipe 4 and jet pipe 5 are mixed.The right-hand member of the gun body 2 is provided with orifice plate 6, and the orifice plate 6 has multiple tap holes 61, the company
Inner chamber 31, first jet 32 and second nozzle 33 are sequentially formed in adapter 3 from left to right.The first jet 32 and second sprays
Mouth 33 is in horn-like, and the maximum inner diameter of the first jet 32 is less than the internal diameter of inner chamber 31, and the left end of first jet 32 is interior
Footpath is more than the internal diameter of right-hand member.The minimum diameter of the second nozzle 33 is more than the maximum inner diameter of first jet 32, the second nozzle
The internal diameter of 33 left ends is less than the internal diameter of right-hand member, and the periphery of the connecting tube 3 is provided with several suction holes connected with second nozzle 33
34, the mixing liquid pipe 4 is internally formed foam chamber 41.
Reference picture 1.The right-hand member of the pipe joint 1 is threadedly coupled with the left end of gun body 2, the right-hand member of the gun body 2 and connection
The left end threaded connection of pipe 4, the right-hand member of the connecting tube 3 are connected with mixing the left end of liquid pipe 4 by screw 7, the mixing liquid pipe 4
Right-hand member is threadedly coupled with the left end of jet pipe 5.
Reference picture 1.Design principle of the present utility model is as follows：The tap hole 61 is disperseed mixed liquor, makes mixing
Liquid forms eddy flow shape, and because the internal diameter of the left end of first jet 32 is more than the internal diameter of right-hand member, the mixed liquor of eddy flow shape is through first jet
During 32 entrance second nozzle 33, its caused negative pressure is bigger, and now air is sucked into from suction hole 34 and mixed with mixed liquor, by
Meeting when being less than the internal diameter of right-hand member in the internal diameter of the left end of second nozzle 33, therefore foam chamber 41 is entered after mixed liquor and air mixing
The inwall of foam chamber 41 is struck, and is sprayed after more fully being foamed in foam chamber 41 from jet pipe.
Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, all should belong to the row for invading scope of protection of the utility model
For.
Claims (2)
- A kind of 1. new foam lance, it is characterised in that：Including be sequentially connected from left to right pipe joint, gun body, connecting tube, Mix liquid pipe and jet pipe, the right-hand member of the gun body is provided with orifice plate, and the orifice plate has multiple tap holes, and the connecting tube is interior from a left side Inner chamber, first jet and second nozzle are sequentially formed to the right side, the first jet and second nozzle are in horn-like, and this first The maximum inner diameter of nozzle is less than the internal diameter of inner chamber, and the internal diameter of the first jet left end is more than the internal diameter of right-hand member, second spray The minimum diameter of mouth is more than the maximum inner diameter of first jet, and the internal diameter of the second nozzle left end is less than the internal diameter of right-hand member, the company The periphery of adapter is provided with several suction holes connected with second nozzle, and the mixing liquid pipe is internally formed foam chamber.
- A kind of 2. new foam lance as claimed in claim 1, it is characterised in that：The right-hand member of the pipe joint and gun body Left end is threadedly coupled, and the right-hand member of the gun body is threadedly coupled with the left end of connecting tube, and the right-hand member of the connecting tube is with mixing liquid pipe Left end is connected by screw, and the right-hand member of the mixing liquid pipe is threadedly coupled with the left end of jet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990622.2U CN207041779U (en) | 2017-08-09 | 2017-08-09 | A kind of new foam lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990622.2U CN207041779U (en) | 2017-08-09 | 2017-08-09 | A kind of new foam lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207041779U true CN207041779U (en) | 2018-02-27 |
Family
ID=61499635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720990622.2U Active CN207041779U (en) | 2017-08-09 | 2017-08-09 | A kind of new foam lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207041779U (en) |
-
2017
- 2017-08-09 CN CN201720990622.2U patent/CN207041779U/en active Active
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