CN112880476A - Flow-adjustable high-pressure-resistant self-adaptive anti-riot water cannon head and anti-riot water cannon - Google Patents
Flow-adjustable high-pressure-resistant self-adaptive anti-riot water cannon head and anti-riot water cannon Download PDFInfo
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- CN112880476A CN112880476A CN202011570430.9A CN202011570430A CN112880476A CN 112880476 A CN112880476 A CN 112880476A CN 202011570430 A CN202011570430 A CN 202011570430A CN 112880476 A CN112880476 A CN 112880476A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
- F41B9/0087—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the intended use, e.g. for self-defence, law-enforcement, industrial use, military purposes
- F41B9/0093—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the intended use, e.g. for self-defence, law-enforcement, industrial use, military purposes for riot control, e.g. water cannons therefor
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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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Abstract
The invention relates to a flow-adjustable high-pressure-resistant self-adaptive anti-riot water cannon head and an anti-riot water cannon, which comprise: a gun head housing assembly; the water outlet separation blade is mounted on the flow guide pull rod, the flow guide pull rod is mounted at one end of the flow guide adjusting base, the flow guide plunger is mounted at the other end of the flow guide adjusting base, a water outlet gap is formed between the water outlet separation blade and the water outlet, the water outlet can move along the flow guide adjusting base, when the water inlet pressure is increased, the water outlet moves towards the water inlet direction, and when the water inlet pressure is decreased, the water outlet moves towards the water outlet direction to the original position; the gun head base assembly is provided with a flow guide adjusting base. The invention can realize the self-adaptive regulation of the flow.
Description
Technical Field
The invention relates to the technical field of anti-riot equipment, in particular to a high-pressure-resistant self-adaptive anti-riot water cannon head with adjustable flow and an anti-riot water cannon.
Background
Generally, the police vehicle-mounted anti-riot water cannon head supplies water to the cannon head through a water pump in the police and shoots the water. The gun head is generally divided into a direct current mode and a spraying mode. The water column ejected by the gun head in the direct current mode has high pressure, strong impact force and accurate ejection point, and can retreat a single target in a non-lethal mode; the water mist is sprayed out from the gun head in the spraying mode, and the water mist is often accompanied with violent behaviors such as a rioter's longitudinal fire and the like during riot, so that the vehicle can be protected from being damaged by high temperature of flame through the water mist, or tear agent is added into the water mist, so that the water mist can be used for dispersing group targets and the like.
In the existing explosion-proof water cannon head, the relative position of the water outlet baffle plate of the cannon head and the water outlet is fixed, and the water outlet gap is not changed, so the rated flow of the cannon head is in a single fixed gear, such as 20L/s and 30L/s. Because the water inlet pressure and the water outlet flow of the water cannon gun head are in a nonlinear increasing relationship, the water cannon gun head jets the rated flow at the rated working pressure, and at the moment, the jet flow is most concentrated and the jet range is farthest. When the jet flow speed is lower than the rated working pressure, the jet flow speed is too slow, the jet range is short, and when the jet flow speed is too fast after the rated working pressure is exceeded, the edge of the jet flow gradually starts to atomize, and the jet range is gradually shortened.
In order to overcome the problems, the other anti-riot water cannon head is available, the rated flow of the water cannon head is also a single fixed gear, but the anti-riot water cannon head can realize automatic regulation of flow through a spring or an air hole, when the water inlet pressure is increased, a water outlet is fixed, a water outlet blocking piece gradually moves along the water outlet direction, so that a water outlet gap is enlarged, the flow speed is reduced through automatic regulation, the automatic regulation of the flow of the cannon head is realized, and the requirement that the water shape of jet flow of the water cannon head is always kept concentrated from low pressure to rated working pressure is met. The shot range under the same low pressure is larger than that of the first type of water cannon head until the shot range under the rated pressure is equal to that of the first type of cannon head.
Thereby the mode of above-mentioned play water separation blade adjusts forward the increase play water clearance can lead to under the direct current mode big gun head inner chamber play water distance to shorten or spray mode big gun head inner chamber spraying angle grow, is unfavorable for the water shape to concentrate, after exceeding rated operating pressure, goes out the water clearance and can continue forward the increase until the biggest, along with pressure constantly improves, the efflux edge begins atomizing to the outer lane, becomes the dispersion gradually, the impact force effect weakens, the journey shortens.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that the prior art is not high-pressure resistant, the impact force effect is unstable, and the firing range is easy to shorten, thereby providing a high-pressure resistant self-adaptive anti-explosion water cannon head and an anti-explosion water cannon which are high-pressure resistant, stable in impact force effect, and capable of guaranteeing that the flow at the farthest firing range is adjustable.
In order to solve the technical problem, the invention provides a high-pressure-resistant self-adaptive anti-explosion water cannon head with adjustable flow, which comprises: a gun head housing assembly; the flow guide water outlet assembly is positioned in the cannon head shell assembly and comprises a water outlet separation blade, a water outlet, a flow guide pull rod, a flow guide adjusting base and a flow guide plunger, wherein the water outlet separation blade is installed on the flow guide pull rod, the flow guide pull rod is installed at one end of the flow guide adjusting base, the flow guide plunger is installed at the other end of the flow guide adjusting base, a water outlet gap is formed between the water outlet separation blade and the water outlet, the water outlet can move along the flow guide adjusting base, when the water inlet pressure is increased, the water outlet moves towards the water inlet direction, and when the water inlet pressure is decreased, the water outlet moves towards the water outlet direction to the original position; the flow guide adjusting base is installed on the cannon head base component.
In an embodiment of the invention, a first elastic element is arranged on the inner ring sleeve of the water outlet, and the first elastic element abuts against the diversion adjusting base.
In an embodiment of the invention, a second elastic element is arranged in the inner ring notch of the water outlet and the corresponding groove of the diversion adjusting base.
In an embodiment of the present invention, a third elastic element is disposed between the inner cavity of the water outlet blocking piece and the diversion pull rod.
In an embodiment of the present invention, the end of the water outlet blocking sheet is provided with a plurality of grooves, and the plurality of grooves have different depths.
In one embodiment of the invention, the flow guide pull rod is provided with a flow gear adjusting shaft along the radial direction, and the flow gear adjusting shaft is embedded into the groove.
In an embodiment of the invention, a plurality of rectifying pieces are arranged in the flow guiding adjusting base, and the plurality of rectifying pieces are uniformly distributed along the flow adjusting base.
In an embodiment of the invention, a first through hole for installing the flow guiding plunger is formed in the flow guiding adjusting base, and a plurality of steps are axially formed on the inner wall of the first through hole.
In one embodiment of the invention, the gun head housing assembly comprises a gun head housing, a first inner cavity and a second inner cavity, the first inner cavity and the second inner cavity are located in the gun head housing, a cavity is formed between the first inner cavity and the flow guide adjusting base, and the water outlet moves in the cavity when moving along the flow guide adjusting base.
In one embodiment of the invention, the gun head housing assembly further comprises a ball disposed between the first internal cavity and the water outlet.
In one embodiment of the invention, the cannon head base assembly comprises a cannon head base, a first cavity and a second cavity, the first cavity and the second cavity are located on the cannon head base, the first cavity abuts against the second cavity, the diversion adjusting base is installed in the first cavity, and the water inlet end of the cannon head base is connected with the water inlet interface assembly.
The invention also provides an anti-explosion water cannon, which comprises any one of the flow-adjustable high-pressure-resistant self-adaptive anti-explosion water cannon head.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the high-pressure-resistant self-adaptive anti-explosion water cannon head and the anti-explosion water cannon with adjustable flow are fixed by the water outlet blocking piece along with the increase of water inlet pressure, and the water outlet gradually moves towards the water inlet direction to adjust the water outlet gap to slow down the flow speed, so that the self-adaptive flow adjustment is realized, the water outlet distance of the inner cavity of the cannon head (namely the linear distance between the front end of the water outlet blocking piece and the front end of the inner cavity of the cannon head shell) is ensured to be unchanged in a direct-current mode, and the spraying angle of the inner cavity of the cannon head (namely the water outlet blocking piece water retaining surface and the tangent angle of the front end of the cannon head shell) is ensured to be unchanged in a spraying mode, so that the concentrated range and the distance of jet flow can be ensured under low pressure, rated pressure and high pressure, and.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic perspective view of a first direction of a high pressure resistant adaptive anti-riot water cannon head with adjustable flow rate according to the present invention;
FIG. 2 is a perspective view of the adjustable high pressure resistant adaptive anti-riot water cannon head of the present invention in a second orientation;
FIG. 3 is a first sectional view of the high pressure resistant adaptive anti-riot water cannon head of the present invention with adjustable flow rate in the DC mode;
FIG. 4 is a second cross-sectional view in elevation of the barrel head of the DC mode antiriot water cannon of the present invention;
FIG. 5 is a side view of the head of the DC mode antiriot water cannon of the present invention;
FIG. 6 is a first cross-sectional view in elevation of a spray mode antiriot water cannon head in accordance with the present invention;
fig. 7 is a second sectional view in the direction of the head of the spray mode antiriot water cannon of the present invention.
The specification reference numbers indicate: 10-gun head shell component, 11-gun head shell, 12-first inner cavity, 13-second inner cavity, 14-ball, 20-diversion water outlet component, 21-water outlet baffle, 211-groove, 22-water outlet, 221-first elastic component, 222-second elastic component, 23-diversion pull rod, 231-third elastic component, 232-flow gear adjusting shaft, 24-diversion adjusting base, 241-fairing, 242-step, 25-diversion plunger, 30-gun head base component, 31-gun head base, 32-first cavity, 33-second cavity, 40-push rod motor component and 41-water inlet interface component.
Detailed Description
Example one
As shown in fig. 1 and 2 and fig. 3 and 4, the present embodiment provides a high-pressure-resistant adaptive anti-explosion monitor head with adjustable flow rate, comprising: a gun head housing assembly 10; the water diversion outlet assembly 20 is positioned in the gun head housing assembly 10, the water diversion outlet assembly 20 comprises a water outlet baffle 21, a water outlet 22, a water diversion pull rod 23, a water diversion adjusting base 24 and a water diversion plunger 25, the water outlet baffle 21 is installed on the water diversion pull rod 23, the water diversion pull rod 23 is installed at one end of the water diversion adjusting base 24, the water diversion plunger 25 is installed at the other end of the water diversion adjusting base 24, a water outlet gap is formed between the water outlet baffle 21 and the water outlet 22, the water outlet 22 can move along the water diversion adjusting base 24, when the water inlet pressure is increased, the water outlet 22 moves towards the water inlet direction, and when the water inlet pressure is decreased, the water outlet 22 moves towards the water outlet direction to the original position; the gun head base assembly 30, the water conservancy diversion adjusting base 24 is installed on the gun head base assembly 30.
This embodiment the high pressure resistant self-adaptation anti-riot water cannon big gun head of flow adjustable includes: a nosepiece housing assembly 10 by which the nosepiece housing assembly 10 facilitates installation of the diversion water outlet assembly 20; the water diversion water outlet assembly 20 is positioned in the gun head shell assembly 10, the water diversion water outlet assembly 20 comprises a water outlet baffle 21, a water outlet 22, a water diversion pull rod 23, a water diversion adjusting base 24 and a water diversion plunger 25, the water outlet baffle 21 is installed on the water diversion pull rod 23, the water diversion pull rod 23 is installed at one end of the water diversion adjusting base 24, the water diversion plunger 25 is installed at the other end of the water diversion adjusting base 24, a water outlet gap is formed between the water outlet baffle 21 and the water outlet 22, the water outlet 22 can move along the water diversion adjusting base 24, when the water inlet pressure is increased, the water flow is blocked by the water outlet baffle 21, the reaction force during ejection through the water outlet gap is gradually increased, so that the water outlet 22 moves towards the water inlet direction, the water outlet gap is increased, and the water flow speed is reduced, the self-adaptive regulation of the flow is realized; when the water inlet pressure is reduced, the water outlet 22 moves to the original position in the water outlet direction; the water-guiding adjusting base 24 is arranged on the cannon head base assembly 30, water flows through the cannon head base assembly 30 and then is discharged through the water outlet gap of the water-guiding water outlet assembly 20, the water-guiding cannon head can ensure the concentration of jet flow and the distance of a shooting range under low pressure, rated pressure and high pressure, and the range of a water wall can be continuously expanded along with the increase of pressure in a high-pressure spraying mode, so that the best impact-back and dispersion effects are achieved.
In order to realize that the water outlet 22 can move along the diversion adjusting base 24, a first elastic part 221 is arranged on an inner ring sleeve of the water outlet 22, and the first elastic part 221 abuts against the diversion adjusting base 24. When the water inlet pressure is gradually increased, because the water flow is blocked by the water outlet blocking piece 21, the reaction force during the ejection through the water outlet gap is also gradually increased, and the water outlet 22 gradually moves towards the water inlet direction under the action of the first elastic piece 221, so that the water outlet gap is increased, the water flow speed is reduced, and the self-adaptive flow regulation is realized. When the water inlet pressure is reduced, the water outlet 22 moves towards the water outlet direction along the diversion adjusting base 24 and is reset by the elastic force provided by the first elastic piece 221.
The first elastic member 221 may be a wave spring.
A second elastic piece 222 is arranged in the inner ring notch of the water outlet 22 and the corresponding groove of the diversion adjusting base 24. Specifically, the water outlet 22 is fixed to the front inner end surface of the diversion adjusting base 24 through the second elastic member 222, so as to limit the forward and backward movement of the water outlet 22.
The water outlet 22 is reset by sleeving an inner ring into the first elastic part 221 to move back and forth on the diversion adjusting base 24, the first elastic part 221 is in a limit state of the second elastic part 222 in a low-pressure state and pushes against the water outlet 22 forwards, and the water outlet 22 gradually moves towards the water inlet direction along with the increase of water pressure in a rated pressure and high-pressure state, so that the gap between the water outlet baffle 21 and the water outlet 22 is adjusted to realize automatic pressure adjustment; the diameter of the flow channel of the water outlet 22 gradually decreases along the water outlet direction to form a more appropriate water outlet speed.
A first sealing element is arranged between the diversion adjusting base 24 and the water outlet 22 to seal the end face, and the first sealing element ensures that water cannot enter the inner cavity of the water outlet 22.
The second elastic member 222 may be a snap spring.
A third elastic element 231 is arranged between the inner cavity of the water outlet baffle 21 and the flow guide pull rod 23. The third elastic member 231 is sleeved on the flow guide pull rod 23, and the third elastic member 231 provides elastic force to enable the water outlet blocking piece 21 to move along the flow guide pull rod 23, so that the adjustment of the initial gap between the water outlet blocking piece 21 and the water outlet 22 is facilitated.
The third elastic member 231 may be a spring.
As shown in fig. 2, a plurality of grooves 211 are formed in the end of the water outlet baffle 21, and the depth of the grooves 211 is different. When the water outlet baffle 21 is pushed and pressed backwards manually, the rated working flow of the gun head is not a constant value any more by switching the rated working flow of various gears of the gun head under the same rated working pressure according to different depths of the groove 211, so that the adaptability is stronger and the application range is wider.
The flow guide pull rod 23 is provided with a flow gear adjusting shaft 232 along the radial direction, and the flow gear adjusting shaft 232 is embedded into the groove 211. When the water outlet blocking piece 21 is pushed and pressed backwards manually, the third elastic member 231 provides elastic force to enable the water outlet blocking piece 21 to move along the diversion pull rod 23, so that the flow gear adjusting shaft 232 is embedded into a groove 211 at the front end of the water outlet blocking piece 21, and the relative initial distance between the water outlet blocking piece 21 and the diversion pull rod 23 is fixed.
Specifically, the front end of the diversion pull rod 23 is provided with a through hole and a threaded hole for fastening the flow gear adjusting shaft 232, and the rear end of the diversion pull rod 23 is in external thread connection with the diversion adjusting base 24 for ensuring the coaxiality of the flow channel of the inner cavity of the gun head, so that the optimal jet effect is formed.
In this embodiment, the end of the water outlet baffle 21 is uniformly provided with three grooves 211, and the depth difference between the deepest groove and the shallowest groove is 3 mm. That is: the maximum relative movement distance between the water outlet baffle 21 and the diversion pull rod 23 is 3 mm.
The water outlet blocking piece 21 is reset by the third elastic member 231, which is used for moving back and forth on the diversion pull rod 23, and the third elastic member 231 can prop the flow rate shift position adjusting shaft 232 against the groove 211 of the water outlet blocking piece 21. The depth of the groove 211 of the water outlet baffle 21 is 3 grades, the difference value of the groove depths of the deepest and shallowest gears is 3mm, the water outlet baffle 21 and the water outlet 22 are manually adjusted by falling into the grooves 211 with different groove depths through a 3-flow gear adjusting shaft, and therefore the rated flow of the gun head is switched.
When the water outlet baffle 21 moves back and forth on the diversion pull rod 23, the relative clearance between the water outlet baffle 21 and the water outlet 22 changes, so that the rated flow of different gears under the same rated working pressure is switched, the rated flow when the clearance is the smallest is 10L/s, the rated flow when the clearance is in the middle is 20L/s, the rated flow when the clearance is the largest is 30L/s, and the rated working pressure is 1.2 MPa.
The flow guide pull rod 23 is fixed with the flow guide adjusting base 24 through threads, and the step surface of the flow guide pull rod 23 is attached to the inner end surface in the middle of the flow guide adjusting base 24.
As shown in fig. 5, a plurality of fairings 241 are arranged in the flow guiding adjustment base 24, and the fairings 241 are uniformly distributed along the flow guiding adjustment base 24, so that the current can be effectively stabilized to make the jet flow of the gun head more concentrated. Specifically, the flow guide adjusting base 24 is internally provided with three rectifying pieces which are in a 360-degree trisection structure, so that an excellent rectifying effect is formed, and the jet flow of the gun head can be concentrated by effectively stabilizing the flow; in addition, the coaxiality of the flow channel of the inner cavity of the gun head is ensured by the mode of connecting the internal thread and the external thread.
The guide adjusting base 24 is provided with a first through hole for installing the guide plunger 25, and the inner wall of the first through hole is provided with a plurality of steps 242 along the axial direction to form a gradual fold end face, so that the guide plunger 25 can be effectively fixed.
After the diversion plunger piston 25 is attached to the diversion adjusting base 24, the rear end of the diversion plunger piston 25 is conical, so that water flow can be effectively and uniformly guided into the diversion water outlet assembly. The conical surface of the diversion plunger piston 25 faces the water inlet direction and is used for reducing the water flow friction resistance and forming a diversion effect.
The diversion plunger piston 25 is made of nylon.
The method of installing the guided water outlet assembly 20 is discussed in detail below:
screwing the diversion pull rod 23 into the diversion adjusting base 24 according to threads, attaching the step surface of the diversion pull rod 23 to the inner end surface in the middle of the diversion adjusting base 24, and sleeving a second sealing element with corresponding specification in the position of the diversion pull rod 23 corresponding to the sealing groove;
placing the first elastic member 221 into the inner ring sleeve of the water outlet 22, clamping the second elastic member 222 into the corresponding notch of the inner ring of the water outlet 22 through a clamp to ensure that the first elastic member 221 cannot slide out, and then inserting a first sealing member with a corresponding specification into the inner ring sealing groove of the water outlet 22;
the assembled water outlet 22 is clamped into the diversion adjusting base 24 through a clamp, and the second elastic piece 222 is clamped into a corresponding groove of the diversion adjusting base 24, so that the water outlet can move back and forth along the diversion adjusting base 24;
after the third elastic member 231 is placed in the inner cavity of the water outlet baffle 21, the water outlet baffle 21 is sleeved on the flow guide pull rod 23;
inserting the flow gear adjusting shaft 232 into a front end through hole of the flow guide pull rod 23 to ensure that the distances between the two ends are equal, and screwing a fastening screw into a front end threaded hole of the flow guide pull rod 23 to limit the axial movement of the flow gear adjusting shaft 232;
the guide plunger 25 is clamped into the rear end of the guide adjusting base 24, so that the conical plane of the guide plunger 25 is completely attached to the rear end of the guide adjusting base 24;
The first sealing element and the second sealing element are O-shaped sealing rings. The water outlet 22 is a pressure-resistant water outlet.
As shown in fig. 3, the cannon head housing assembly 10 includes a cannon head housing 11, a first inner cavity 12 and a second inner cavity 13 located in the cannon head housing 11, the first inner cavity 12 is connected with the second inner cavity 13, a cavity is formed between the first inner cavity 12 and the diversion adjusting base 24, and when the water outlet 22 moves along the diversion adjusting base 24, the water outlet 22 moves in the cavity.
The first inner cavity 12 is fixedly connected with the internal thread at the front end of the gun head shell 11 and is sealed with the middle of the gun head shell 11 through a third sealing ring, so that the sealed connection between the gun head shell 11 and the first inner cavity 12 can be ensured. The first inner cavity 12 is provided with a weight reduction structure, and a gap of 1mm is reserved between the front end face of the first inner cavity 12 and the front end face cut of the shell of the gun head.
A plurality of reinforcing ribs are arranged outside the gun head shell 11 and used for reinforcing the structural strength; horizontal support lugs are arranged on two sides of the gun head shell 11 and used for being fixed with a push rod head of the push rod motor component 40, the push rod head drives the gun head shell component 10 to be attached to the flow guide water outlet component 20, the flow guide adjusting base 24 moves back and forth, and therefore the gun head shell component 10 is electrically controlled to move along the flow guide adjusting base 24 through the push rod head, and switching between a direct current mode and a spraying mode is achieved.
The second inner cavity 13 is fixedly connected with the first inner cavity 12 through an external thread, so that the first inner cavity 12 is connected with the second inner cavity 13. The second interior cavity 13 also carries a weight reducing structure, and the rear end of the second interior cavity 13 is sealed with the rear end face of the shell 11 by a third seal, thereby ensuring a sealed connection of the second interior cavity 13 with the shell 11.
The cannon head shell assembly 10 clamps the diversion water outlet assembly 20 from the front-back direction, and the front end of the water outlet 22 and the inner side of the first inner cavity 12 are sealed through a fourth sealing element, so that water flow cannot seep into the water outlet 22. The gun head shell assembly 10 moves back and forth on the diversion water outlet assembly 20 along the diversion adjusting base 24, so that the switching between the direct current mode and the spraying mode of the gun head is realized.
Specifically, the gun head housing assembly 10 fixes the push rod head of the push rod motor assembly 40 through the gun head housing support lug, and the push rod head drives the gun head housing assembly 10 to attach to the diversion water outlet assembly 20 and the diversion adjusting base 24 to move back and forth, so that switching between a direct current mode and a spraying mode is realized.
As shown in fig. 3 and 4, the dc mode is when the cannon head housing assembly 10 is moved forward to the maximum distance, when the distance between the cannon head housing assembly 10 and the cannon base assembly 30 is at a maximum. When the water outlet 22 gradually moves towards the water inlet direction to adjust the flow rate along with the gradual rise of the water inlet pressure, the water outlet distance of the fixed direct-current inner cavity between the first inner cavity 12 and the front end face of the water outlet baffle 21 cannot be shortened in the process, so that the concentration and the range distance of jet flow are ensured.
As shown in fig. 6 and 7, the spray mode is when the cannon head housing assembly 10 is moved rearwardly to a maximum distance, when the distance between the cannon head housing assembly 10 and the cannon base assembly 30 is at a minimum. The water outlet 22 does not change the angle of the water retaining surface of the gun head shell 11 and the water outlet baffle 21 when moving towards the water inlet direction, the spraying effect formed by the jet flow cannot be weakened, and the water wall range can be continuously expanded along with the continuous increase of the water inlet pressure.
The gun head shell assembly 10 further comprises a ball 14, the ball 14 is arranged between the first inner cavity 12 and the water outlet 22, the ball 14 is used for limiting and bearing the water outlet 22 in the diversion water outlet assembly 20, and the initial position of the water outlet 22 is attached to the ball 14 in a spraying mode.
The first inner cavity 12 and the second inner cavity 13 are in threaded connection and form a cavity, the first inner cavity 12 is provided with a circle of ball grooves for placing the balls 14, the movement limit of propping against the water outlet 22 is realized, and meanwhile, the first inner cavity and the second inner cavity are provided with weight reduction grooves for reducing the overall weight of the gun head.
Because the diversion water outlet assembly is positioned in the gun head shell assembly 10, the first elastic piece 221 is used for adjusting the water outlet 22 to move towards the water inlet direction to increase the water outlet gap, so that the water flow speed is reduced, and the self-adaptive flow regulation is realized; and when the water inlet pressure exceeds the rated pressure, in the direct current mode, the water outlet 22 moves towards the water inlet direction, so that the water outlet distance of the fixed direct current inner cavity between the first inner cavity 12 and the front end face of the water outlet baffle 21 is not shortened, and the concentration of jet flow and the farthest distance of a jet range are ensured; in the spraying mode, the angle between the tangent line of the gun head shell 11 and the water retaining surface of the water outlet baffle 21 cannot be changed by moving the water outlet 22, the spraying effect formed by the jet flow cannot be weakened in a diffusion mode, and meanwhile, the water wall range can be continuously expanded along with the continuous increase of the water inlet pressure, so that the jet flow of the gun head of the water gun is always stably concentrated and the water wall effect is best under the conditions of low pressure, rated pressure and high pressure.
And the third sealing element and the fourth sealing element are O-shaped sealing rings.
The method of mounting the shell assembly 10 is discussed in detail below:
an O-shaped sealing ring with a corresponding specification is sleeved in a sealing groove on the outer side of the first inner cavity 12, and then the first inner cavity 12 is screwed into the gun head shell 11 according to threads, so that a gap of 1mm is ensured between the tangent of the front end face of the first inner cavity 12 and the notch of the front end face of the gun head shell 11; an O-shaped sealing ring with a corresponding specification is sleeved in a sealing groove at the inner side of the first inner cavity 12, and 65-67 balls 14 are fully filled in a circle with lubricating grease in a ball groove;
sleeving the assembled water diversion and outlet assembly 20 into the inner ring of the first inner cavity 12 from back to front, sleeving an O-shaped sealing ring with a corresponding specification into a sealing groove on the outer side of the second inner cavity 13, abutting the second inner cavity 13 against the water diversion and outlet assembly 10, screwing the water diversion and outlet assembly into the corresponding thread of the inner ring of the first inner cavity 12, and enabling the rear end of the second inner cavity 13 to be flush with the rear end face of the gun head shell 11;
and testing whether the gun head shell assembly 10 can coaxially move back and forth on the diversion water outlet assembly 20, if so, indicating that the installation is finished, otherwise, checking the problem and reinstalling.
As shown in fig. 5 and 6, the cannon head base assembly 30 includes a cannon head base 31, a first cavity 32 and a second cavity 33 which are located on the cannon head base 31, the first cavity 32 abuts against the second cavity 33, the diversion adjusting base 24 is installed in the first cavity 32, and the water inlet end of the cannon head base 31 is connected with the water inlet interface assembly 41.
The first cavity 32 is fixed with the two-section type external thread at the rear end of the diversion adjusting base 24 through the internal thread and sealed through a sealing ring, so that water flow cannot leak out of the gun head; the front end surface of the first cavity 32 is abutted against the diversion adjusting base 24.
The first cavity 32 is attached to the front end face of the gun head base 31. The first cavity 32 is connected with the gun head base 31 and the diversion adjusting base 24 through internal and external threads, so that the coaxiality of a flow passage of the inner cavity of the gun head is ensured, and the water pressure loss is minimized; in addition, the first cavity 32 has 2 threaded holes, and a set screw is passed through to ensure that the front end surface of the first cavity 32 is attached to the positioning surface at the rear end of the diversion water outlet assembly 20.
The diameter of the water inlet flow channel of the inner cavity of the second cavity 33 is gradually reduced along the water inlet direction, and the water inlet flow channel is used for smoothly and slowly transiting a water inlet surface, reducing resistance generated by water flow friction and reducing pressure loss.
The single-side projection of the cannon head base 31 is used for fixing the push rod motor assembly so as to meet the requirement of relative movement of the push rod. The cannon head base 31 is further provided with a semicircular ball path for connecting with the water inlet interface component 41, so that water inlet is realized.
The axial fit connection of the inner cavity of the gun head base 31, the diversion adjusting base 24, the diversion pull rod 23 and the water outlet 22 guarantees the whole coaxiality of the gun head, and the inner runner curve and the three-petal type fairing which start to transition gently from the water inlet end guarantee that the turbulent effect of water flow in the advancing process is minimum, so that the jet performance of the gun head is integrally improved, the pressure loss is small, and the jet range and the effect of jet flow are optimal.
The support lug of the gun head shell 11 is directly fixed at the front end of the push rod motor assembly 40, and the lug of the gun head base 31 is used for fixing the shell of the push rod motor assembly 40, so that the thrust direction of the motor push rod is parallel to the jet flow direction, the thrust fulcrum is close to the gun body and is stressed evenly, and the motor push rod is stable and reliable in the advancing process.
The method of installation of the base assembly 30 of the cannon head is described in detail below:
an O-shaped sealing ring with a corresponding specification is sleeved in a sealing groove at the outer side of the first cavity 32, and then the first cavity 32 is screwed into the gun head base 31 according to a corresponding external thread, so that the front end faces of the first cavity 32 and the gun head base 31 are attached;
screwing the second cavity 33 into the gun head base 31 according to corresponding threads, wherein the front end face of the second cavity 33 is attached to the rear end face of the first cavity 32, and the rear end face of the second cavity 33 is attached to the rear end face of the gun head base 31;
an O-shaped sealing ring with corresponding specification is sleeved in a sealing groove on the outer side of the rear end of the water diversion and outlet assembly 20, the O-shaped sealing ring is screwed into the assembled first cavity 32, and a set screw is used for oppositely penetrating the gun head base 31 and the first cavity 32 and tightly fixing the gun head base 31 and the first cavity 32 on corresponding hole positions at the rear end of the water diversion and outlet assembly 20, so that the gun head base 31, the first cavity 32 and the positioning surface at the rear end of the water diversion and outlet assembly 20 are ensured to be attached.
Example two
The embodiment provides an anti-riot water cannon, which comprises the gun head of the anti-riot water cannon with adjustable flow and high pressure resistance and self-adaption.
The anti-riot water cannon of this embodiment, because include the flow adjustable high pressure resistant self-adaptation anti-riot water cannon big gun head of embodiment one, therefore the advantage that embodiment one has, this embodiment also all has.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. The utility model provides a flow adjustable high pressure resistant self-adaptation anti-riot water cannon big gun head which characterized in that includes:
a gun head housing assembly;
the water outlet separation blade is mounted on the flow guide pull rod, the flow guide pull rod is mounted at one end of the flow guide adjusting base, the flow guide plunger is mounted at the other end of the flow guide adjusting base, a water outlet gap is formed between the water outlet separation blade and the water outlet, the water outlet can move along the flow guide adjusting base, when the water inlet pressure is increased, the water outlet moves towards the water inlet direction, and when the water inlet pressure is decreased, the water outlet moves towards the water outlet direction to the original position;
the gun head base assembly is provided with a flow guide adjusting base.
2. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 1, characterized in that: and a first elastic piece is arranged on the inner ring sleeve of the water outlet and abuts against the diversion adjusting base.
3. The flow-adjustable high-pressure-resistant adaptive anti-explosion monitor head according to claim 1 or 2, characterized in that: and a second elastic part is arranged in the inner ring notch of the water outlet and the corresponding groove of the diversion adjusting base.
4. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 1, characterized in that: and a third elastic element is arranged between the inner cavity of the water outlet baffle sheet and the flow guide pull rod.
5. The flow-adjustable high-pressure-resistant adaptive anti-riot water cannon head according to claim 1 or 4, wherein: a plurality of grooves are formed in the end head of the water outlet blocking piece, and the depth of the grooves is different.
6. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 5, characterized in that: the flow guide pull rod is provided with a flow gear adjusting shaft along the radial direction, and the flow gear adjusting shaft is embedded into the groove.
7. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 1, characterized in that: be equipped with a plurality of fillets in the base is adjusted to the water conservancy diversion, just a plurality of fillets are followed base evenly distributed is adjusted to the water conservancy diversion.
8. The flow-adjustable high-pressure-resistant adaptive anti-riot water cannon head according to claim 1 or 7, wherein: the flow guide adjusting base is provided with a first through hole for installing the flow guide plunger, and the inner wall of the first through hole is provided with a plurality of steps along the axial direction.
9. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 1, characterized in that: the gun head shell assembly comprises a gun head shell, a first inner cavity and a second inner cavity, the first inner cavity and the second inner cavity are located in the gun head shell, the first inner cavity is connected with the second inner cavity, a cavity is formed between the first inner cavity and the flow guide adjusting base, and when the water outlet moves along the flow guide adjusting base, the water outlet moves in the cavity.
10. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 9, characterized in that: the gun head shell assembly further comprises a ball, and the ball is arranged between the first inner cavity and the water outlet.
11. The high pressure resistant adaptive anti-riot water cannon head of adjustable flow of claim 1, characterized in that: the gun head base assembly comprises a gun head base, a first cavity and a second cavity, the first cavity and the second cavity are located on the gun head base, the first cavity is abutted against the second cavity, the diversion adjusting base is installed in the first cavity, and the water inlet end of the gun head base is connected with the water inlet interface assembly.
12. An anti-riot monitor, characterized in that it comprises a flow-adjustable high-pressure-resistant adaptive anti-riot monitor head according to any one of claims 1 to 11.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011570430.9A CN112880476B (en) | 2020-12-26 | 2020-12-26 | Flow-adjustable high-pressure-resistant self-adaptive anti-riot water cannon head and anti-riot water cannon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011570430.9A CN112880476B (en) | 2020-12-26 | 2020-12-26 | Flow-adjustable high-pressure-resistant self-adaptive anti-riot water cannon head and anti-riot water cannon |
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| CN112880476A true CN112880476A (en) | 2021-06-01 |
| CN112880476B CN112880476B (en) | 2022-02-01 |
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| CN109350897A (en) * | 2018-09-30 | 2019-02-19 | 燕山大学 | A kind of fire water monitor head |
| CN111388924A (en) * | 2020-03-24 | 2020-07-10 | 燕山大学 | Fire water monitor |
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|---|---|---|---|---|
| GB2297930A (en) * | 1995-02-20 | 1996-08-21 | Sword | Jet/spray nozzles |
| DE202010007590U1 (en) * | 2010-06-04 | 2010-08-26 | Max Widenmann Kg Armaturenfabrik | Nozzle device for a water gun |
| CN204050749U (en) * | 2014-07-07 | 2014-12-31 | 泰州市翔达消防器材有限公司 | The big gun head of fire water monitor |
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| Publication number | Publication date |
|---|---|
| CN112880476B (en) | 2022-02-01 |
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