CN217489621U

CN217489621U - Special shower nozzle of fire-fighting lance

Info

Publication number: CN217489621U
Application number: CN202122655328.5U
Authority: CN
Inventors: 游元胜; 补高键
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-09-27
Anticipated expiration: 2031-11-02

Abstract

The utility model provides a special nozzle of a fire-fighting lance, which is arranged at the head part of a gun barrel and comprises a nozzle main body and a nozzle cover, wherein the nozzle main body rotates and a sealing sleeve is arranged at the head part, and the nozzle cover is rotatably sleeved on the gun barrel and is fixedly connected with the nozzle main body; the spray head main body is provided with a main spray pipe and a plurality of first auxiliary spray pipes and second auxiliary spray pipes which are respectively and uniformly distributed around the circumference of the main spray pipe and are arranged in a crossed manner; the main nozzle is communicated with the inner flow passage of the gun barrel; the first auxiliary spraying pipe and the second auxiliary spraying pipe are different in pipe diameter and can be respectively communicated with the inner flow passage of the gun barrel when the spray head main body rotates. The utility model discloses according to the area size and the different distances of on-the-spot burning things which may cause a fire disaster, through the rotation of shower nozzle main part, have pointed ground to control rivers from the first pair spray tube of different pipe diameters or the vice spray tube blowout of second to realize the regulation of water yield, improve fire control effect.

Description

Special shower nozzle of fire-fighting lance

Technical Field

The utility model relates to a fire control apparatus technical field, concretely relates to special shower nozzle of fire-fighting lance.

Background

The fire-fighting lance is a water jetting tool for fire extinguishing, can jet dense and full water flow after being connected with a water hose, and has the advantages of long jetting range, large water quantity and the like. Fire water guns can be classified according to the different forms and characteristics of the jet flow: the water gun comprises a straight-flow water gun, a spraying water gun, a multi-purpose water gun and the like, wherein the commonly used water guns are the straight-flow water gun and the spraying water gun.

The existing fire-fighting lance mainly has the following problems:

1. the water yield can not be adjusted according to the area size and different distances of a fire source, so that water waste is easily caused, and an ideal fire extinguishing effect can not be achieved due to insufficient water in the later period;

2. the rivers or the spraying area coverage that the shower nozzle jetted are less, and the scope of putting out a fire is limited, for improving fire control effect, needs the fire fighter to continuously change the point of falling into water, consumes physical power very much.

Therefore, there is a need for improvement in the existing fire-fighting lance to reduce the personal injury and the property loss caused by the poor fire-fighting effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a special shower nozzle of fire-fighting lance to solve current fire-fighting lance water yield can not adjust, cause the water yield extravagant, lead to the later stage because of the not enough problem that can not reach the fire extinguishing effect of ideal of water yield easily according to the area size and the different distances of burning things which may cause a fire disaster.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a special shower nozzle of fire-fighting lance locates the head of barrel, and this shower nozzle includes:

the spray head main body rotates and is arranged at the head part of the gun barrel in a sealing manner; and

the spray head cover is rotatably sleeved on the gun barrel and fixedly connected with the spray head main body, and is used for limiting the spray head main body so as to prevent the spray head main body from axially moving;

the spray head main body is provided with a main spray pipe, a plurality of first auxiliary spray pipes and a plurality of second auxiliary spray pipes which are uniformly distributed around the circumference of the main spray pipe and are arranged in a crossed mode; the main nozzle is communicated with the gun barrel internal flow passage; the first auxiliary spraying pipe and the second auxiliary spraying pipe are different in pipe diameter and can be respectively communicated with the inner flow passage of the gun barrel when the spray head main body rotates.

Optionally, the head of the barrel is provided with a water outlet hole positioned in the middle of the barrel and a plurality of arc-shaped water outlet grooves uniformly distributed around the circumference of the water outlet hole;

the spray head main body is internally provided with a main injection flow channel and a plurality of auxiliary injection flow channels which are uniformly distributed around the circumference of the main injection flow channel;

the main injection flow channel is communicated with the main injection pipe and corresponds to the water outlet hole;

the auxiliary injection flow channel is respectively communicated with the first auxiliary spray pipe and the second auxiliary spray pipe;

half quantity of the auxiliary injection flow channels correspond to the arc-shaped water outlet grooves, and the other half quantity of the auxiliary injection flow channels are staggered with the arc-shaped water outlet grooves.

Optionally, the auxiliary injection flow channel is respectively communicated with the first auxiliary injection pipe and the second auxiliary injection pipe through a necking spray hole.

Optionally, a spiral core is further placed in the auxiliary injection flow channel, and a spiral water flow groove is formed in the spiral core along the axial direction of the spiral core.

Optionally, the outlet of the main nozzle is provided with a water separator.

Optionally, the outlets of the first and second secondary nozzles are each arranged obliquely to the outlets of the main nozzles in an outwardly diverging manner.

Optionally, the pipe diameter of the main nozzle is larger than that of the first secondary nozzle, and the pipe diameter of the first secondary nozzle is larger than that of the second secondary nozzle.

Optionally, each of the first secondary nozzle and the second secondary nozzle is provided with 3 nozzles.

Optionally, the sprayer also comprises a lock rod for locking the sprayer cover, wherein the lock rod comprises a lock head, an arc-shaped block, a slide rod and a handle which are arranged in sequence;

the lock head can be inserted into a lock hole arranged at the side end of the sprayer cover, which is far away from the sprayer main body, and a plurality of lock holes are arranged and correspond to the auxiliary spraying flow passages one by one;

the arc-shaped block is in sliding fit with the outer circumferential surface of the gun barrel, and the sliding rod is in sliding connection with the support block arranged on the outer circumferential surface of the gun barrel.

Optionally, a spring is sleeved on the sliding rod, and two ends of the spring are respectively connected with the arc-shaped block and the supporting block in an abutting manner;

the lock rod and the spring form a locking mechanism.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the area size and different distances of the on-site fire source, the water flow is controlled to be sprayed out from the first auxiliary spray pipes or the second auxiliary spray pipes with different pipe diameters in a targeted manner through the rotation of the spray head main body, so that the water quantity is adjusted, and the fire extinguishing effect is improved;

2. by rotating the spray head main body, the arc-shaped water outlet groove can be communicated with the auxiliary spray flow channel corresponding to the first auxiliary spray pipe or the second auxiliary spray pipe, so that water flow is blocked from being sprayed out from the second auxiliary spray pipe or the first auxiliary spray pipe, and the adjustment and control of the fire extinguishing water spray quantity are realized;

3. when water flow entering the auxiliary jet flow channel passes through the necking spray holes, the water pressure and the flow speed are increased, the jet distance is long, atomization can be realized when the water flow is sprayed out from the first auxiliary spray pipe or the second auxiliary spray pipe, the coverage area of the water flow or the atomization can be enlarged, and the fire extinguishing effect is improved;

4. the spiral core arranged in the auxiliary jet flow channel is impacted by water flow to rotate at a high speed, so that the rotation of water is increased, and the atomization effect of the water flow sprayed out from the first auxiliary jet pipe or the second auxiliary jet pipe is improved;

5. the water separator arranged at the outlet of the main spray pipe can disperse the water flow sprayed by the main spray pipe to realize atomization, thereby enlarging the coverage area and improving the fire extinguishing effect;

6. the outlets of the first auxiliary spray pipe and the second auxiliary spray pipe are obliquely arranged at the outlet of the main spray pipe in an outward diffusion mode, so that the coverage area of water flow or spray sprayed by each spray pipe can be enlarged, the fire extinguishing range is enlarged, the fire extinguishing effect is improved, and the physical consumption of fire fighters is reduced;

7. the locking rod locks the spray head cover to limit the spray head main body from spraying water on each spray pipe to rotate, so that continuous spraying of water flow during fire extinguishing is ensured, interruption is avoided, and the fire extinguishing effect is improved;

8. the locking lever passes through the restoring force locking sprinkler lid of spring, when the water spray volume of putting out a fire is adjusted to needs, through drawing earlier the unblock and the locking that the pine realized the sprinkler lid to realize the rotation and the fixing of shower nozzle main part, simple structure and convenient operation, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic perspective view of the present invention from another angle;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the assembled spray head body and barrel head;

FIG. 6 is a perspective view of the head of the barrel;

FIG. 7 is a schematic perspective view of the nozzle body;

FIG. 8 is a perspective view of a spiral core;

FIG. 9 is a schematic perspective view of the cap;

fig. 10 is a perspective view of the lock lever.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 10, the utility model provides a special nozzle for fire-fighting lance, which is arranged at the head of a gun barrel 100 and comprises:

a nozzle body 200 which is rotatably and sealedly fitted to the head of the barrel 100; and

the nozzle cover 300 is rotatably sleeved on the barrel 100 and fixedly connected with the nozzle body 200, and is used for limiting the nozzle body 200 to prevent the nozzle body from axially moving;

the nozzle body 200 is provided with a main nozzle 210, and a plurality of first auxiliary nozzles 220 and second auxiliary nozzles 230 which are uniformly distributed around the circumference of the main nozzle 210 and are arranged in a crossed manner; the main nozzle 210 communicates with the internal flow passage of the barrel 100; the first secondary nozzle 220 and the second secondary nozzle 230 have different diameters, and they are respectively communicated with the inner flow passage of the barrel 100 when the spray head body 200 rotates (i.e., they do not spray water at the same time).

Specifically, the spray head body 200 is rotatably sleeved on the head of the barrel 100 and sealed by an O-ring; the spray head cover 300 is shaped like a shaft end retainer ring, is fixedly connected with the end surface of the spray head main body 200 through a screw, is in sliding fit with the side surface of the head part of the gun barrel 100, and rotates together with the spray head main body 200 so as to limit the axial movement of the spray head main body 200 when rotating; for ease of assembly and disassembly, the cap 300 is assembled from a pair of semi-circular caps, which is a common technique in the art and is not specifically limited herein, and thus the cap 300 shown in fig. 9 is again shown as a circular cap.

When the fire extinguishing gun is used, the tail part of the gun barrel 100 is connected with a fire hydrant or a water tank of a fire truck through a water hose (not shown in the figure), and water flows through the internal flow passage of the gun barrel 100 and is respectively sprayed out of the main nozzle 210 and the first auxiliary nozzle 220 or the main nozzle 210 and the second auxiliary nozzle 230, so that a fire source is extinguished; in a fire scene, a fire fighter rotates the nozzle body 200 by a certain angle according to the size of a fire and the distance from a fire source, and switches the communication state of the first and second

auxiliary nozzles

220 and 230 with the internal flow passage of the barrel 100 while keeping the main nozzles 210 spraying water continuously, thereby adjusting and controlling the amount of water sprayed for fire extinguishing. That is, according to the area size and different distances of the on-site fire source, the water flow is controlled to be sprayed out from the first auxiliary spraying pipe 220 or the second auxiliary spraying pipe 230 with different pipe diameters in a targeted manner through the rotation of the nozzle body 200, so that the water quantity is adjusted, and the fire extinguishing effect is improved.

Referring to fig. 6, the barrel 100 has a water outlet 110 at the center thereof and a plurality of arc-shaped water outlet grooves 120 uniformly distributed around the circumference of the water outlet 110 at the head thereof; referring to fig. 7, the nozzle body 200 is provided therein with a main injection flow channel 240 and a plurality of auxiliary injection flow channels 250 uniformly distributed around the circumference of the main injection flow channel 240; referring to fig. 5, the main injection flow channel 240 communicates with the main nozzle 210 and corresponds to the water outlet 110; the auxiliary injection flow passage 250 is respectively communicated with the first auxiliary nozzle 220 and the second auxiliary nozzle 230; half of the number of secondary injection channels 250 correspond to the arcuate exit channels 120, and the other half of the number of secondary injection channels 250 are offset from the arcuate exit channels 120. A part of water flow in the internal flow passage of the gun barrel 100 sequentially passes through the water outlet hole 110, the main injection flow passage 240 and the main nozzle 210 to be sprayed out, and the other part of water flow passes through the arc-shaped water outlet groove 120 to enter the corresponding auxiliary injection flow passage 250 to be sprayed out from the first auxiliary nozzle 220 or the second auxiliary nozzle 230, and by rotating the nozzle body 200, the arc-shaped water outlet groove 120 can be communicated with the auxiliary injection flow passage 250 corresponding to the first auxiliary nozzle 220 or the second auxiliary nozzle 230, so that the water flow is blocked from being sprayed out from the second auxiliary nozzle 230 or the first auxiliary nozzle 220, and the adjustment and control of the fire extinguishing water spraying amount are realized.

The auxiliary injection channel 250 is respectively communicated with the first auxiliary nozzle 220 and the second auxiliary nozzle 230 through a necking nozzle (i.e. the inner diameter of the auxiliary injection channel 250 is respectively larger than the pipe diameters of the first auxiliary nozzle 220 and the second auxiliary nozzle 230). When the rivers that get into vice injection flow 250 pass through the throat orifice, water pressure and velocity of flow all grow, and jet distance is far away, can realize atomizing when spouting from first vice spray tube 220 or the vice spray tube 230 of second moreover, can enlarge the area covered of rivers or spraying, improves fire extinguishing effect.

Referring to fig. 5 and 8, a spiral core 400 is further disposed in the secondary injection flow passage 250, and a spiral water flow groove 410 is formed in the spiral core 400 along an axial direction thereof. The water flow enters the auxiliary injection flow channel 250 through the arc-shaped water outlet channel 120 and passes through the spiral water flow channel 410 to impact the spiral core 400 in a surrounding manner, and the spiral core 400 is impacted by the water flow to rotate at a high speed in the auxiliary injection flow channel 250, so that the rotation of the water is increased, and the atomization effect of the water flow when the water flow is sprayed out from the first auxiliary spray pipe 220 or the second auxiliary spray pipe 230 is improved.

Referring to fig. 2, the outlet of the main nozzle 210 is provided with a water separator 211. The water separator 211 disperses the water flow sprayed from the main nozzle 210 to realize atomization, thereby enlarging the coverage area and improving the fire extinguishing effect.

In order to further enlarge the coverage area of the water flow or spray, the outlets of the first and

second sub-nozzles

220 and 230 are disposed obliquely to the outlets of the main nozzles 210 in an outwardly diverging manner. So, the area covered of rivers or the spraying that each spray tube erupted will further obtain enlarging, increases the scope of putting out a fire, improves fire control effect, reduces fire fighter's physical demands.

The main nozzles 210 have a pipe diameter greater than that of the first secondary nozzle 220, and the first secondary nozzle 220 has a pipe diameter greater than that of the second secondary nozzle 230. Thus, the flow rate of the water flow sprayed from the first auxiliary nozzle 220 is greater than that sprayed from the second auxiliary nozzle 230, and two-stage adjustment of the water flow rate can be realized.

In the present embodiment, 3 nozzles are provided for each of the first auxiliary nozzle 220 and the second auxiliary nozzle 230. Thus, the first sub-nozzle 220 and the second sub-nozzle 230 can be switched when the nozzle body 200 rotates by 60 degrees, so that the water quantity can be adjusted.

The special spray head for the fire-fighting lance further comprises a lock rod 500 for locking the spray head cover 300, wherein the lock rod 500 comprises a lock head 510, an arc-shaped block 520, a sliding rod 530 and a handle 540 which are arranged in sequence; the locking head 510 may be inserted into a locking hole 310 provided at a side end of the head cap 300 facing away from the head main body 200, and a plurality of locking holes 310 are provided and correspond to the sub injection flow passages 250 one to one; the arc blocks 520 are slidably engaged with the outer circumferential surface of the barrel 100, and the sliding rods 530 are slidably coupled with the support blocks 130 disposed on the outer circumferential surface of the barrel 100. Rotating nozzle main part 200 and driving nozzle cover 300 and rotating a certain angle for lockhole 310 and tapered end 510 aim at, rivers just spout from first pair of spray tube 220 or the vice spray tube 230 of second this moment, promote locking lever 500 through handle 540, the laminating of arc piece 520 can guarantee locking lever 500 steady movement in the outer periphery slip of barrel 100, make tapered end 510 insert lockhole 310 accurately, thereby locking nozzle cover 300 takes place to rotate in each spray tube water spray with restriction nozzle main part 200, guarantee the lasting blowout of rivers when putting out a fire, can not take place to interrupt, and then improve fire control effect.

The sliding rod 530 is sleeved with a spring 600, and two ends of the spring 600 are respectively connected with the arc-shaped block 520 and the supporting block 130 in an abutting mode; the lock lever 500 and the spring 600 constitute a locking mechanism. Locking lever 500 passes through the power that resets of spring 600 and locks shower nozzle lid 300 promptly, when the water spray volume of putting out a fire needs to be adjusted, realizes the unblock and the locking of shower nozzle lid 300 through drawing earlier the pine afterwards to realize the rotation and the fixing of shower nozzle main part 200, simple structure and convenient operation, the practicality is strong.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The utility model provides a special shower nozzle of fire-fighting lance locates the head of barrel, its characterized in that, this shower nozzle includes:

the spray head main body rotates and is arranged on the head part in a sealing manner; and

the spray head main body is provided with a main spray pipe and a plurality of first auxiliary spray pipes and second auxiliary spray pipes which are uniformly distributed around the circumference of the main spray pipe and are arranged in a crossed manner; the main nozzle is communicated with the gun barrel internal flow passage; the first auxiliary spray pipe and the second auxiliary spray pipe are different in pipe diameter and can be respectively communicated with the gun barrel internal flow passage when the spray head main body rotates.

2. The special nozzle as claimed in claim 1, characterized in that:

the head is provided with a water outlet hole in the middle and a plurality of arc water outlet grooves which are uniformly distributed around the circumference of the water outlet hole;

half quantity of the auxiliary injection flow passages correspond to the arc-shaped water outlet grooves, and the other half quantity of the auxiliary injection flow passages are staggered with the arc-shaped water outlet grooves.

3. The special nozzle as claimed in claim 2, wherein the auxiliary injection channel is connected to the first auxiliary injection pipe and the second auxiliary injection pipe through a nozzle hole.

4. The special nozzle as claimed in claim 2 or 3, wherein a spiral core is further disposed in the auxiliary injection channel, and a spiral water channel is formed in the spiral core along an axial direction of the spiral core.

5. The special nozzle as claimed in any one of claims 1 to 3, wherein the outlet of the main nozzle is provided with a water separator.

6. The special nozzle as claimed in claim 5, characterized in that the outlets of the first and second secondary nozzles are each disposed obliquely to the outlets of the main nozzles in an outwardly diverging manner.

7. The special nozzle as claimed in claim 6, wherein the main nozzles have a larger diameter than the first secondary nozzle, and the first secondary nozzle has a larger diameter than the second secondary nozzle.

8. The special nozzle as claimed in claim 6 or 7, wherein there are 3 nozzles for each of the first and second secondary nozzles.

9. The special nozzle as claimed in claim 4, characterized in that:

the sprayer cover locking device is characterized by further comprising a locking rod for locking the sprayer cover, wherein the locking rod comprises a lock head, an arc-shaped block, a sliding rod and a handle which are sequentially arranged;

10. The special spray head for a fire-fighting lance as recited in claim 9, wherein:

the sliding rod is sleeved with a spring, and two ends of the spring are respectively connected with the arc-shaped block and the support block in an abutting mode;

the lock rod and the spring form a locking mechanism.