CN112156408B - Fire-fighting lance - Google Patents
Fire-fighting lance Download PDFInfo
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- CN112156408B CN112156408B CN202010914322.2A CN202010914322A CN112156408B CN 112156408 B CN112156408 B CN 112156408B CN 202010914322 A CN202010914322 A CN 202010914322A CN 112156408 B CN112156408 B CN 112156408B
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- fire
- lance
- adjusting sleeve
- adjusting
- water
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a fire-fighting lance, and relates to the field of fire-fighting lances. The fire-fighting lance comprises a lance head part and an adjusting sleeve, wherein a water liquid flow channel is arranged inside the lance head part, the adjusting sleeve is rotatably arranged on the lance head part, the front end of the adjusting sleeve is provided with a flow adjusting hole, and a water outlet and the flow adjusting hole of the water liquid flow channel are respectively arranged on the outer side of the rotating axis of the adjusting sleeve; and a circumferential locking piece is also arranged between the gun head part and the adjusting sleeve and is used for fastening the adjusting sleeve when the flow adjusting hole is communicated with the water liquid flow channel. When the adjusting sleeve rotates, the superposed area of the flow adjusting hole and the water liquid flow passage changes, the superposed area of the flow adjusting hole and the water liquid flow passage is the water outlet sectional area, and the water outlet of the water liquid flow passage and the flow adjusting hole can be completely staggered, so that the water outlet passage of the fire-fighting lance can be quickly closed. The fire-fighting lance has the advantages that the internal structure is simpler, the operation of adjusting the water yield is simplified, and the reliability and the stability during use are higher.
Description
Technical Field
The invention relates to the technical field of fire-fighting lances, in particular to a fire-fighting lance.
Background
In fire fighting, a water gun, a hose and a hydrant are generally used to connect, thereby introducing water to a fire extinguishing site. The structure of the water gun is closely related to the water outlet effect, and the water outlet flow is flexibly adjusted according to different fire conditions.
If the chinese utility model patent of the grant bulletin number is CN209221388U, the grant bulletin day is 2019.08.09 discloses a fire-fighting lance of adjustable water yield size to specifically disclose this fire-fighting lance including the valve body of intaking, fire-fighting lance body, fire-fighting lance shower nozzle and nozzle, the welding of fire-fighting lance body inner chamber left side has the installation cover, installation cover inner chamber middle part and right side all are provided with the adjustment disk, two sets of adjustment disk bottoms all are provided with the commentaries on classics ball, the fixed disk has been cup jointed to the dwang outer wall, the limbers has all been seted up on two sets of adjustment disks. Set up two kinds of adjustment disks, the magnetic sheet on the adjustment disk that makes needs attracts mutually with location magnet and fixes, with another adjustment disk rotation 180 degrees, loosen the movable rod, the extension spring drives the movable rod and resets to make fixed disk and fixed slot block, the fixed block card advances the adjustment disk that the spacing inslot on left and right sides can normal use needs, the limbers aperture on two sets of adjustment disks is different, limbers quantity is also different, the water yield is just also different during the use, satisfy different users' demand.
Be provided with dwang, fixed disk and two sets of adjustment disks among the fire-fighting lance among the prior art, the position that needs two sets of adjustment disks of adjustment just can change the water yield, and the inner structure of whole fire-fighting lance is complicated, adjusts the complex operation of water yield, and the water outlet channel of fire-fighting lance can't be closed fast, and reliability and stability during the use are low.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a fire-fighting lance, which solves the problems of the existing fire-fighting lance, such as complicated internal structure, complicated operation of adjusting water output, incapability of quickly closing a water outlet channel of the fire-fighting lance, and low reliability and stability during use.
The technical scheme of the fire-fighting lance of the invention is as follows:
the fire-fighting lance comprises a lance head part and an adjusting sleeve, wherein a water liquid flow channel is arranged inside the lance head part, the adjusting sleeve is rotatably arranged on the lance head part, the front end of the adjusting sleeve is provided with a flow adjusting hole, and a water outlet of the water liquid flow channel and the flow adjusting hole are respectively arranged on the outer side of the rotating axis of the adjusting sleeve;
and a circumferential locking piece is further arranged between the gun head part and the adjusting sleeve and used for fastening the adjusting sleeve when the flow adjusting hole is communicated with the water liquid flow channel.
Furthermore, the water outlet of the water liquid flow channel and the flow regulating hole are respectively a circular hole, an elliptical hole or a polygonal hole.
Furthermore, the water outlet of the water liquid flow channel and the flow regulating hole are respectively circular holes with the same size.
Further, the radial distance between the center of the water outlet of the water liquid flow passage and the rotation axis of the adjusting sleeve is D1, the radial distance between the center of the flow adjusting hole and the rotation axis of the adjusting sleeve is D2, and D1 is equal to D2.
Furthermore, the front end of the gun head part is also provided with a plurality of positioning parts, the positioning parts are continuously arranged on the peripheral wall of the gun head part, the circumferential locking part is radially and adjustably arranged on the adjusting sleeve in a penetrating manner, and the lower end of the circumferential locking part is in top pressure fit with the positioning parts.
Furthermore, the positioning part is a spherical groove, and the spherical grooves are continuously arranged to form a circular arc fish scale structure.
Furthermore, an outer sleeve is further sleeved outside the adjusting sleeve, a threaded hole is formed in the outer sleeve, and the circumferential locking piece is a locking bolt assembled in the threaded hole.
Furthermore, a ball ring groove is formed in the outer wall of the front end of the gun head part, and balls are mounted between the gun head part and the adjusting sleeve corresponding to the ball ring groove.
Furthermore, a front baffle is arranged at the front end of the adjusting sleeve, the flow adjusting hole is formed in the front baffle, an annular blocking table is arranged at the position, close to the front end, of the gun head part, and the annular blocking table is in blocking fit with the adjusting sleeve along the water flow direction.
Furthermore, the fire-fighting lance also comprises a lance body part, and the lance body part is in threaded connection with the rear end of the lance head part.
Has the advantages that: the adjusting sleeve of the fire-fighting lance is rotatably arranged on the lance head part, and the water outlet of the water liquid flow passage and the flow adjusting hole of the adjusting sleeve are respectively arranged at the outer side of the rotating axis of the adjusting sleeve; when the adjusting sleeve rotates, the superposed area of the flow adjusting hole and the water liquid flow channel changes along with the flow adjusting hole, the superposed area of the flow adjusting hole and the water liquid flow channel is the water outlet sectional area, the size of the water outlet sectional area can be flexibly adjusted according to the serious situation of the scene fire, the water outlet flow of fire extinguishment is changed, the water outlet of the water liquid flow channel and the flow adjusting hole can be completely staggered, and therefore the water outlet channel of the fire-fighting lance can be quickly closed. After the adjusting sleeve rotates and is adjusted in place, the adjusting sleeve is fastened at the position by the circumferential locking piece, and the water outlet flow of the fire-fighting lance in the fire extinguishing process can be kept stable and unchanged. Compare the fire-fighting lance among the prior art, this fire-fighting lance's inner structure is simpler, has simplified the operation of adjusting the water yield, and reliability and stability during the use are higher.
Drawings
Fig. 1 is a schematic cross-sectional view of a fire-fighting lance (with a body portion omitted) according to an embodiment 1 of the fire-fighting lance of the present invention;
FIG. 2 is an exploded view of the fire-fighting lance of FIG. 1 (with the body portion omitted);
FIG. 3 is a perspective view of the fire-fighting lance of FIG. 1 (with a body portion omitted);
fig. 4 is a perspective view of a gun body according to embodiment 1 of the fire-fighting lance of the present invention.
In the figure: 1-gun head part, 10-water liquid flow channel, 100-water liquid flow channel water outlet, 11-ball ring groove, 12-positioning part, 13-annular blocking table, 14-locking bolt, 15-gun head external thread, 2-adjusting sleeve, 20-flow adjusting hole, 21-front baffle, 22-rotation axis, 3-outer sleeve, 30-threaded hole, 4-gun body part, 40-gun body internal thread, D1-radial distance between water outlet center of water liquid flow channel and rotation axis of adjusting sleeve, and D2-radial distance between flow adjusting hole center and rotation axis of adjusting sleeve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the specific embodiment 1 of the fire-fighting lance of the present invention, as shown in fig. 1 to 4, the fire-fighting lance includes a lance head portion 1 and an adjusting sleeve 2, a water liquid flow channel 10 is provided inside the lance head portion 1, the adjusting sleeve 2 is rotatably mounted on the lance head portion 1, a flow rate adjusting hole 20 is provided at a front end of the adjusting sleeve 2, a water outlet 100 of the water liquid flow channel of the lance head portion 1 and the flow rate adjusting hole 20 of the adjusting sleeve 2 are respectively arranged outside a rotation axis 22 of the adjusting sleeve 2; a circumferential locking piece is further arranged between the gun head part 1 and the adjusting sleeve 2 and used for fastening the adjusting sleeve 2 when the flow adjusting hole 20 is communicated with the water liquid flow channel 10.
An adjusting sleeve 2 of the fire-fighting lance is rotatably arranged on a lance head part 1, and a water outlet 100 of a water liquid flow passage and a flow adjusting hole 20 of the adjusting sleeve 2 are respectively arranged at the outer side of a rotating axis 22 of the adjusting sleeve 2; when the adjusting sleeve 2 rotates, the overlapping area of the flow adjusting hole 20 and the water flow passage 10 changes, the overlapping area of the flow adjusting hole and the water flow passage is the water outlet sectional area, the size of the water outlet sectional area can be flexibly adjusted according to the serious situation of the scene fire, the water outlet flow of fire extinguishing is changed, the water outlet 100 of the water flow passage and the flow adjusting hole 20 can be completely staggered, and the water outlet passage of the fire-fighting lance can be quickly closed. After adjusting sleeve 2 rotated and adjusted in place, utilize circumference retaining member to fasten adjusting sleeve 2 in this position, guaranteed that the effluent water flow of the in-process fire-fighting lance of putting out a fire can remain stable unchangeable. Compare the fire-fighting lance among the prior art, this fire-fighting lance's inner structure is simpler, has simplified the operation of adjusting the water yield, and reliability and stability during the use are higher.
Wherein, the water outlet 100 and the flow regulating hole 20 of the water flow channel are respectively a circular hole, an elliptical hole or a polygonal hole. In this embodiment, the water outlet 100 and the flow regulating hole 20 of the water flow channel are circular holes with the same size. And the radial distance between the center of the water outlet 100 of the water liquid flow passage and the rotation axis 22 of the adjusting sleeve 2 is D1, the radial distance between the center of the flow adjusting hole 20 and the rotation axis 22 of the adjusting sleeve 2 is D2, and D1 is equal to D2. The apertures of the water outlet 100 of the water liquid flow channel and the flow regulating hole 20 are designed to be equal in size, and the radial distances from the rotating axis 22 are equal, so that when the flow regulating hole 20 completely corresponds to the water outlet 100 of the water liquid flow channel, the sectional area of the outlet water is maximized, and the requirement of high-flow fire-fighting water supply is met; and the flow regulating hole 20 is rotated and staggered relative to the water outlet 100 of the water liquid flow channel along with the rotation of the regulating sleeve 2, and the sectional area of the outlet water is gradually reduced until the outlet water is completely closed.
In order to improve the rotation adjusting effect between the adjusting sleeve 2 and the gun head part 1, a ball ring groove 11 is formed in the outer wall of the front end of the gun head part 1, balls (not shown in the figure) are installed in the ball ring groove 11 between the gun head part 1 and the adjusting sleeve 2, and the balls are used for reducing the rotation friction force. Furthermore, a front baffle 21 is arranged at the front end of the adjusting sleeve 2, the flow rate adjusting hole 20 is formed in the front baffle 21 of the adjusting sleeve 2, an annular baffle 13 is arranged at the position, close to the front end, of the gun head part 1, and the annular baffle 13 is matched with the adjusting sleeve 2 in a blocking mode along the water flow direction. The annular baffle table 13 ensures that the adjusting sleeve 2 is not staggered along the water flow direction, and ensures the rotating assembly stability between the adjusting sleeve 2 and the gun head part 1.
The front end of the gun head part 1 is also provided with a plurality of positioning parts 12, the positioning parts 12 are continuously arranged on the peripheral wall of the gun head part 1, the circumferential locking part is radially and adjustably arranged on the adjusting sleeve 2 in a penetrating manner, and the lower end of the circumferential locking part is in top pressure fit with the positioning parts 12. Specifically, the positioning portion 12 is a spherical groove, and a plurality of spherical grooves are continuously arranged to form a circular arc fish scale structure. The circumferential locking piece and the spherical groove form top press fit, so that the circumferential restraining effect is achieved on the adjusting sleeve 2, and the problem that the adjusting sleeve 2 rotates and changes when being adjusted in a non-screwing mode is solved.
In this embodiment, the outer sleeve 3 is further sleeved outside the adjusting sleeve 2, a threaded hole 30 is formed in the outer sleeve 3, and the circumferential locking member is a locking bolt 14 which is assembled in the threaded hole 30. The locking bolt 14 is screwed in the threaded hole 30 of the outer sleeve 3, and the locking bolt 14 penetrates through the adjusting sleeve 2, and the lower end of the locking bolt is in abutting fit with the spherical groove, so that the function of circumferentially restraining the adjusting sleeve 2 is achieved. It should be noted that, the radial distance between the bottom of the spherical groove and the other parts is not much different, and when the locking bolt 14 is screwed in place, the outer sleeve 3 can be rotated by force to drive the adjusting sleeve 2 to slide the locking bolt into the adjacent spherical groove, and the circumferential constraint effect is formed again.
In addition, the outer diameter of the annular abutment 13 is the same as the outer diameter of the adjustment sleeve 2, the outer sleeve 2 extending outside the annular abutment 13. And, the fire-fighting lance still includes body of a gun part 4, and body of a gun part 4 and the rear end threaded connection of rifle head part 3. Wherein, the rear end of rifle head part 3 is equipped with rifle head external screw thread 15, and the front end of rifle body part 4 is equipped with rifle body internal thread 40, and screw assembly between rifle head external screw thread 15 and the rifle body internal thread 40 to the equipment of whole fire-fighting lance has been accomplished.
In other specific embodiments of the fire-fighting lance, in order to meet different use requirements, the shape of the flow regulating hole and the cross section of the water liquid flow passage can be any one of a triangle, a pentagon, a hexagon, an ellipse or other polygons respectively, and the purpose of regulating the water outlet sectional area can be realized along with the change of the angle of the regulating sleeve.
In other specific embodiments of the fire-fighting lance, in order to meet different use requirements, an elastic pad can be fixedly arranged at the lower end of the locking bolt, the shape of the elastic pad is in concave-convex fit with the positioning part, and the elastic pad can be tightly propped against the positioning part by screwing the locking bolt, so that the function of circumferentially restraining the adjusting sleeve is achieved. Because the elastic pad can take place compression deformation, when adjusting collar and locking bolt rotate and get into adjacent location portion, the elastic pad continues to push up adjacent location portion tightly, plays the effect of circumference restraint adjusting collar once more. In addition, the positioning portion is not limited to the spherical groove in embodiment 1, and the positioning portion may be designed as a plurality of circumferentially continuously arranged planes (similar to a polygon), so as to achieve the purpose of constraining the adjusting sleeve at different angles.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A fire-fighting lance is characterized by comprising a lance head part and an adjusting sleeve, wherein a water liquid flow channel is arranged inside the lance head part, the adjusting sleeve is rotatably arranged on the lance head part, the front end of the adjusting sleeve is provided with a flow adjusting hole, and a water outlet of the water liquid flow channel and the flow adjusting hole are respectively arranged on the outer side of the rotating axis of the adjusting sleeve;
a circumferential locking piece is further arranged between the gun head part and the adjusting sleeve and used for fastening the adjusting sleeve when the flow adjusting hole is communicated with the water liquid flow channel; the front end of the adjusting sleeve is provided with a front baffle, and the flow adjusting hole is formed in the front baffle;
the front end of the gun head part is also provided with a plurality of positioning parts, the positioning parts are continuously arranged on the peripheral wall of the gun head part, the circumferential locking part is radially and adjustably mounted on the adjusting sleeve in a penetrating manner, and the lower end of the circumferential locking part is in top pressure fit with the positioning parts.
2. The fire-fighting lance as claimed in claim 1, wherein the water outlet of the water flow channel and the flow regulating hole are circular, elliptical or polygonal holes, respectively.
3. The fire-fighting lance as claimed in claim 1, wherein the water outlet of the water flow channel and the flow regulating hole are circular holes of equal size.
4. The fire-fighting lance as recited in claim 1, wherein a radial distance between a center of the water outlet of the water flow passage and a rotation axis of the adjusting sleeve is D1, a radial distance between a center of the flow rate adjusting hole and a rotation axis of the adjusting sleeve is D2, and D1 is equal to D2.
5. The fire-fighting lance as recited in claim 1, wherein the positioning portion is a spherical groove, and a plurality of the spherical grooves are continuously arranged to form a circular arc fish scale structure.
6. The fire-fighting lance as recited in claim 1, wherein an outer sleeve is further sleeved outside the adjusting sleeve, a threaded hole is formed in the outer sleeve, and the circumferential locking member is a locking bolt fitted in the threaded hole.
7. The fire-fighting lance defined in claim 1 wherein the lance tip portion has a ball ring groove formed in the outer wall of the forward end thereof, and balls are mounted in the ball ring groove between the lance tip portion and the adjustment sleeve.
8. The fire-fighting lance defined in claim 1 wherein an annular stop is provided at the lance tip portion near the forward end thereof, the annular stop cooperating with the adjustment sleeve in a blocking manner in the direction of water flow.
9. The fire-fighting lance as recited in claim 1, further comprising a lance body portion, the lance body portion being threadably connected to a rear end of the lance head portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914322.2A CN112156408B (en) | 2020-09-03 | 2020-09-03 | Fire-fighting lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914322.2A CN112156408B (en) | 2020-09-03 | 2020-09-03 | Fire-fighting lance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112156408A CN112156408A (en) | 2021-01-01 |
| CN112156408B true CN112156408B (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010914322.2A Active CN112156408B (en) | 2020-09-03 | 2020-09-03 | Fire-fighting lance |
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| CN (1) | CN112156408B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668273Y (en) * | 2003-11-11 | 2005-01-05 | 王金种 | Delivery changing structure for horiticultural water spray head |
| CN201006516Y (en) * | 2007-02-12 | 2008-01-16 | 张学峰 | Water spraying gun for gardening |
| CN202891003U (en) * | 2012-11-02 | 2013-04-24 | 金陵科技学院 | Multifunctional car washing spraying nozzle |
| DE202013008532U1 (en) * | 2013-09-25 | 2014-01-30 | Aqualean Manufacturing Associates Co., Ltd. | water gun |
| CN208427245U (en) * | 2018-07-10 | 2019-01-25 | 杭州职业技术学院 | A kind of carwash giant |
| CN110325283A (en) * | 2017-02-08 | 2019-10-11 | Oem集团有限责任公司 | Flow rate adjustable nozzle system |
| CN211097226U (en) * | 2019-11-12 | 2020-07-28 | 福建泉州闽远消防器材有限公司 | Novel fire-fighting lance die casting |
| CN211129174U (en) * | 2018-11-30 | 2020-07-31 | 福建千佰億农业科技发展有限公司 | Vegetable greenhouse irrigation system of adjustable reposition of redundant personnel |
-
2020
- 2020-09-03 CN CN202010914322.2A patent/CN112156408B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668273Y (en) * | 2003-11-11 | 2005-01-05 | 王金种 | Delivery changing structure for horiticultural water spray head |
| CN201006516Y (en) * | 2007-02-12 | 2008-01-16 | 张学峰 | Water spraying gun for gardening |
| CN202891003U (en) * | 2012-11-02 | 2013-04-24 | 金陵科技学院 | Multifunctional car washing spraying nozzle |
| DE202013008532U1 (en) * | 2013-09-25 | 2014-01-30 | Aqualean Manufacturing Associates Co., Ltd. | water gun |
| CN110325283A (en) * | 2017-02-08 | 2019-10-11 | Oem集团有限责任公司 | Flow rate adjustable nozzle system |
| CN208427245U (en) * | 2018-07-10 | 2019-01-25 | 杭州职业技术学院 | A kind of carwash giant |
| CN211129174U (en) * | 2018-11-30 | 2020-07-31 | 福建千佰億农业科技发展有限公司 | Vegetable greenhouse irrigation system of adjustable reposition of redundant personnel |
| CN211097226U (en) * | 2019-11-12 | 2020-07-28 | 福建泉州闽远消防器材有限公司 | Novel fire-fighting lance die casting |
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| Publication number | Publication date |
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| CN112156408A (en) | 2021-01-01 |
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