CN112494861A - Watering accessory of fire engine - Google Patents
Watering accessory of fire engine Download PDFInfo
- Publication number
- CN112494861A CN112494861A CN202011319346.XA CN202011319346A CN112494861A CN 112494861 A CN112494861 A CN 112494861A CN 202011319346 A CN202011319346 A CN 202011319346A CN 112494861 A CN112494861 A CN 112494861A
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- water
- fan
- fire
- screen
- shaped
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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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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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Abstract
The invention relates to the technical field of road watering, and discloses a watering accessory of a fire engine, which comprises a mounting bracket and a fire-fighting fan-shaped screen water gun connected on the mounting bracket, wherein a front-end nozzle of the fire-fighting fan-shaped screen water gun is composed of a nozzle flange and a screen baffle connected on the plane of the nozzle flange, a screen opening for forming a fan-shaped water curtain is arranged between the nozzle flange and the screen baffle, the fire-fighting fan-shaped screen water gun is vertically arranged downwards, and the screen baffle is arranged in the horizontal direction; the screen baffle is fixed on the mounting bracket. The invention adds the sprinkling accessory to the fire truck, so that the fire truck can be used for emergency rescue and road sprinkling, and realizes multiple purposes.
Description
Technical Field
The invention relates to the technical field of road sprinkling, in particular to a sprinkling accessory of a fire fighting truck.
Background
Dust on roads in a company is continuously more and cannot be cleaned up, and when heavy vehicles and staffs run behind or meet strong wind, the dust on the roads always flies all the way, so that the road traffic safety is influenced, and the company image is also influenced. In addition, the road surface inside the company continuously maintains a high temperature every time high temperature occurs in summer, which affects the service life of the road.
Therefore, the existing fire fighting truck of a company is fully utilized, and the fire fighting truck has a road watering function through technical modification.
Disclosure of Invention
Based on the problems, the invention provides a water spraying accessory of a fire fighting truck, which aims to enable the fire fighting truck to be used for emergency rescue and road spraying in a company by additionally arranging the water spraying accessory, so that one truck has multiple purposes. The specific technical scheme is as follows:
a sprinkler accessory of a fire engine comprises a mounting bracket and a fire-fighting fan-shaped screen water gun connected to the mounting bracket, wherein a front nozzle of the fire-fighting fan-shaped screen water gun is composed of a nozzle flange and a screen baffle connected to the plane of the nozzle flange, a screen opening for forming a fan-shaped water curtain is arranged between the nozzle flange and the screen baffle, the fire-fighting fan-shaped screen water gun is vertically arranged downwards, and the screen baffle is arranged in the horizontal direction; the screen baffle is fixed on the mounting bracket.
In the invention, the fire-fighting fan-shaped screen water gun is fixed on the rear body of the fire truck through the mounting bracket.
Preferably, when the fire-fighting fan-shaped screen water gun is installed on the rear body of a fire truck, the rear end of the screen baffle is inclined downwards by 3-10 degrees in the horizontal direction.
As a preferable scheme, the fire-fighting fan-shaped screen water gun can also be fixed on the front body of the fire fighting truck through the mounting bracket.
Preferably, when the fire-fighting fan-shaped screen water gun is installed on the front body of a fire truck, the front end of the screen baffle is inclined downwards by 3-10 degrees in the horizontal direction.
The oblique arrangement of the screen baffle is more beneficial to the transfer of the garbage in the middle of the road to two sides.
In the invention, the fire-fighting fan-shaped screen water gun is connected with a fire-fighting water pump on the fire fighting truck through a fire hose.
As a further improvement of the invention, the sprinkler accessory further comprises a controller and human body infrared induction sensors respectively arranged at two sides of the body of the fire fighting truck, the fire fighting fan-shaped screen water gun is a modified screen water gun, the modified screen water gun comprises a servo motor which is fixed on the gun body of the fire fighting fan-shaped screen water gun and a rotating shaft which is used for replacing a rotating shaft of an adjusting handle of the fire fighting fan-shaped screen water gun with a transmission gear, a driving gear is arranged on an output shaft of the speed reducer, and the driving gear is meshed with the transmission gear; the human body infrared induction sensor and the servo motor are respectively connected with the controller.
When the fire fighting water truck is used for road sprinkling operation, the controller acquires the conditions of pedestrians on two sides and in front of the fire fighting truck through the human body infrared induction sensor, and if the pedestrians on two sides of the fire fighting truck are not found or the pedestrians on two sides of the fire fighting truck are far away, the controller drives the servo motor to adjust the rotating shaft of the adjusting handle to a conventional gear, so that the fan-shaped radius of the water mist sprayed by the fire fighting fan-shaped screen water gun is set to be a preset value; work as the controller passes through human infrared induction sensor discovery pedestrian is close apart from fire engine both sides distance, by the controller drive servo motor rotates, will adjustment handle's pivot is adjusted to pedestrian's protection gear, thereby will the fan-shaped radius of water smoke when adjusting to can avoiding the pedestrian is sprayed apart from to the water smoke of fire control fan-shaped screen squirt.
Preferably, be provided with pressure sensor on the fan-shaped screen squirt of fire control, pressure sensor connection controller, the controller passes through pressure sensor learns the water pressure in the screen squirt to judge according to the water pressure the fan-shaped radius of water smoke of fan-shaped screen squirt of fire control spun size, then through servo motor adjustment handle's pivot gear, thus will the fan-shaped radius of water smoke of fan-shaped screen squirt of fire control size adjustment to required value.
As a further improvement of the invention, a pair of gradually changed size water discharge gaps are vertically arranged on the screen baffle, and the pair of gradually changed size water discharge gaps are integrally arc-shaped and are butted with the left and right positions at the inner side of a screen opening for forming a fan-shaped water curtain on the fire-fighting fan-shaped screen water gun; through setting up a pair of sluicing gap of gradual change size for the water pressure of screen wind gap inboard left and right sides position reduces to the direction gradual change of left and right sides, and then makes fan-shaped water curtain reduce at the water smoke range gradual change of left and right sides position, thereby forms fan-shaped water curtain is at the water curtain edging effect of left and right sides position, thereby makes fan-shaped water curtain narrows down in the width of left and right sides orientation.
Preferably, the drainage gap with gradually changed size on the left side gradually increases towards the left side; the drainage gap with gradually changed size on the right side gradually increases towards the right side.
Preferably, the screen baffle is further provided with a water cover for covering the water drainage gap, the water cover is provided with an electric adjusting water drainage valve connected with the controller, and the controller adjusts the size of the water drainage amount discharged from the water drainage gap through the electric adjusting water drainage valve so as to adjust the width of the fan-shaped water curtain in the left-right direction; the controller respectively adjusts the fan-shaped radius of the water mist of the fire-fighting fan-shaped screen water gun and the width of the fan-shaped water curtain in the left and right directions through the servo motor and the electric adjusting drain valve, so that a water spraying mode capable of effectively avoiding pedestrians and achieving the best spraying effect is formed.
Preferably, the screen baffle is further provided with a short-range spray head, and water discharged by the electric adjusting water drain valve is connected to the short-range spray head through a pipeline to realize short-range diffusion spraying.
Preferably, according to the principle of the present invention, a gradually changing size water drainage gap may be formed at the front position of the inner side of the screen opening, so as to form a fan-shaped water curtain front end edge cutting effect, which, in combination with the gradually changing size water drainage gaps formed at the left and right positions of the inner side of the screen opening, may form a rectangular water curtain or other water curtains with beautiful appearance.
In the invention, the fire-fighting fan-shaped screen water gun can be refitted by adopting a fire-fighting 65-type fan-shaped barrier water gun.
The invention has the beneficial effects that:
first, the water mist sprayed by the fire-fighting fan-shaped screen water gun has a relatively fast water flow speed and a fan shape, so that the water mist has good kinetic energy transfer by pushing garbage, and can spray the garbage on a main road to the roadside by water flow, thereby facilitating cleaning. Therefore, the defect that the traditional watering device can only sprinkle water and can not effectively transfer garbage to two sides of a road is overcome.
Secondly, the sprinkler accessory of the fire engine is simple in overall structure and low in implementation cost. Through sluicing gap on the screen baffle for the water pressure gradual change nature of fan-shaped water curtain both sides position descends, thereby forms the edging effect of fan-shaped water curtain both sides, and it cooperatees with human infrared induction sensor, under the unchangeable circumstances of keeping water spray water pressure and water spray effect, can utilize the both sides edging effect of water curtain to dodge the pedestrian well. Therefore, the use experience of the fire fighting truck in sprinkling is improved.
Drawings
FIG. 1 is a schematic view of a sprinkler attachment of a fire engine of the present invention;
FIG. 2 is a schematic view (top view) of a fan-shaped shield of water sprayed using the sprinkler attachment of FIG. 1;
FIG. 3 is a schematic view of a further improvement over FIG. 1 (screen baffles having water bleed slots and mounted water covers, electrically-actuated bleed valves and short-range spray heads);
FIG. 4 is a schematic view (top view) of the screen baffle of FIG. 3 with gradually changed drainage slits;
FIG. 5 is a schematic view (top view) of a fan-shaped water curtain with curtain chamfered edges on both sides sprayed using the water spray attachment of FIG. 3.
In the figure: 1. the device comprises a mounting support, 2, a fire-fighting fan-shaped screen water gun, 3, a front end nozzle, 4, a nozzle flange, 5, a screen baffle, 6, a screen opening, 7, a rear vehicle body of a fire-fighting vehicle, 8, a human body infrared induction sensor, 9, a servo motor with a speed reducer, 10, an adjusting handle, 11, a rotating shaft, 12, a transmission gear, 13, a driving gear, 14, a pressure sensor, 15, a water drainage gap, 16, a water curtain chamfered edge, 17, a water cover, 18, an electric adjusting water drainage valve, 19, a short-range spray head, 20, a fire-fighting vehicle, 21 and a fan-shaped water curtain.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 5 show an embodiment of a sprinkler accessory of a fire fighting truck according to the present invention, which includes a mounting bracket 1 and a fire fighting fan-shaped screen water gun 2 connected to the mounting bracket 1, wherein a front nozzle 3 of the fire fighting fan-shaped screen water gun 2 is composed of a nozzle flange 4 and a screen baffle 5 connected to a plane of the nozzle flange 4, a screen opening 6 for forming a fan-shaped water curtain 21 is arranged between the nozzle flange 4 and the screen baffle 5, the fire fighting fan-shaped screen water gun 2 is vertically arranged downwards, and the screen baffle 5 is arranged horizontally; the screen baffle 5 is fixed on the mounting bracket 1.
In this embodiment, the fire-fighting fan-shaped screen water gun 2 is fixed on the rear body 7 of the fire truck 20 through the mounting bracket 1.
Preferably, when the fire-fighting fan-shaped screen water gun 2 is installed on a rear vehicle body 7 of a fire fighting truck, the rear end of the screen baffle 5 is inclined downwards by 3-10 degrees in the horizontal direction.
Preferably, the fire-fighting fan-shaped screen water gun 2 can be fixed on the front body of the fire fighting truck 20 through the mounting bracket 1.
Preferably, when the fire fighting fan-shaped screen water 2 is installed on the front body of the fire fighting truck 20, the front end of the screen baffle 5 is inclined downwards by 3-10 degrees in the horizontal direction.
The inclined arrangement of the screen baffle 5 is more beneficial to the transfer of the garbage in the middle of the road to two sides.
In this embodiment, the fan-shaped fire-fighting water branch 2 is connected to the fire-fighting water pump of the fire truck 20 through a fire hose.
As a further improvement of the embodiment, the water spraying accessory further comprises a controller and human body infrared sensors 8 respectively arranged at two sides of the body of the fire fighting truck 20, the fire fighting fan-shaped screen water gun 2 is a modified screen water gun, the modified screen water gun comprises a servo motor 9 with a speed reducer fixed on the body of the fire fighting fan-shaped screen water gun 2 and a rotating shaft 11 with a transmission gear 12, a driving gear 13 is arranged on an output shaft of the speed reducer, and the driving gear 13 is meshed with the transmission gear 12; the human body infrared induction sensor 8 and the servo motor 9 are respectively connected with the controller.
When the fire fighting water truck is used for road watering work, the controller acquires the conditions of pedestrians on two sides and in front of the fire fighting truck 20 through the human body infrared induction sensor 8, and if the pedestrians on two sides of the fire fighting truck 20 are not found or the pedestrians on two sides of the fire fighting truck 20 are far away, the controller drives the servo motor 9 to adjust the rotating shaft 11 of the adjusting handle 10 to a conventional gear, so that the fan-shaped radius of the water mist sprayed by the fire fighting fan-shaped screen water gun 2 is set to be a preset value; work as the controller passes through human infrared sensor 8 discovers that the pedestrian is closer apart from 20 both sides of fire engine, by the controller drive servo motor 9 rotates, will adjustment to pedestrian's protection gear in adjustment handle 10's pivot 11, thereby will fire control fan-shaped screen squirt 2's water smoke sprays apart from adjusting to can avoiding the fan-shaped radius of water smoke when the pedestrian.
Preferably, a pressure sensor 14 is arranged on the fire-fighting fan-shaped screen water gun 2, the pressure sensor 14 is connected with a controller, the controller acquires the water pressure in the screen water gun 2 through the pressure sensor, judges the size of the fan-shaped radius of the water mist sprayed out from the fire-fighting fan-shaped screen water gun 2 according to the water pressure, and then adjusts the gear of the rotating shaft 11 of the adjusting handle 10 through a servo motor 9, so that the size of the fan-shaped radius of the water mist of the fire-fighting fan-shaped screen water gun 2 is adjusted to a required value.
As a further improvement of this embodiment, a pair of gradually changed size water discharge slits 15 is vertically formed in the screen baffle 5, and the pair of gradually changed size water discharge slits 15 are integrally arc-shaped and are butted with the left and right positions inside the screen opening 6 on the fire-fighting fan-shaped screen water gun 2 for forming the fan-shaped water curtain 21; by arranging the pair of water discharge gaps 15 with gradually changed sizes, the water pressure at the left and right positions inside the screen opening 6 is gradually changed to be reduced towards the left and right sides, and further the water mist range of the fan-shaped water curtain 21 at the left and right sides is gradually changed to be reduced, so that the water curtain chamfered edge 16 effect of the fan-shaped water curtain 21 at the left and right sides is formed, and the width of the fan-shaped water curtain 21 in the left and right directions is narrowed.
Preferably, the drainage gap 15 with gradually changed size on the left side gradually increases towards the left side; the drain slit 15 located on the right side gradually increases toward the right side.
Preferably, the screen barrier 5 is further provided with a water cover 17 covering the water discharge slit 15, the water cover 17 is provided with an electrically adjustable water discharge valve 18 connected to the controller, and the controller adjusts the width of the fan-shaped water curtain 21 in the left-right direction by adjusting the amount of water discharged from the water discharge slit 15 through the electrically adjustable water discharge valve 18; the controller respectively adjusts the fan-shaped radius of the water mist of the fire-fighting fan-shaped screen water gun 2 and the width of the fan-shaped water curtain 21 in the left and right directions through the servo motor 9 and the electric adjusting drain valve 18, so that a water spraying mode capable of effectively avoiding pedestrians and achieving the best spraying effect is formed.
Preferably, the screen baffle 5 is further provided with a short-range spray head 19, and water discharged by the electric adjusting drain valve 18 is connected to the short-range spray head 19 through a pipeline to realize short-range diffusion spraying.
Preferably, according to the principle of the present embodiment, a gradually-changing size water drainage gap may be formed at the front position of the inner side of the screen opening 6, so as to form a fan-shaped water curtain front end edge cutting effect, which, in combination with the gradually-changing size water drainage gaps 15 formed at the left and right positions of the inner side of the screen opening 6, may form a rectangular water curtain or other water curtains with beautiful appearance.
In this embodiment, the fire-fighting fan-shaped screen water gun 2 can be modified by a fire-fighting 65-type fan-shaped screen water gun.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The sprinkler accessory of the fire fighting truck is characterized by comprising a mounting bracket and a fire fighting fan-shaped screen water gun connected to the mounting bracket, wherein a front end nozzle of the fire fighting fan-shaped screen water gun is composed of a nozzle flange and a screen baffle connected to the plane of the nozzle flange, a screen opening for forming a fan-shaped water curtain is arranged between the nozzle flange and the screen baffle, the fire fighting fan-shaped screen water gun is vertically arranged downwards, and the screen baffle is arranged in the horizontal direction; the screen baffle is fixed on the mounting bracket.
2. A sprinkler attachment for a fire fighting vehicle as defined in claim 1, wherein said fan-shaped screen-mounted fire fighting lance is secured to a rear body of the fire fighting vehicle by said mounting bracket.
3. The sprinkler attachment of a fire engine of claim 2, wherein the fire fan screen monitor is connected to a fire pump on the fire engine by a fire hose.
4. The sprinkler accessory of a fire engine of claim 2, further comprising a controller and human body infrared sensors respectively disposed at two sides of the body of the fire engine, wherein the fire-fighting fan-shaped screen water gun is a retrofit screen water gun, the retrofit screen water gun comprises a servo motor with a speed reducer fixed on the body of the fire-fighting fan-shaped screen water gun and a rotating shaft with a transmission gear replacing a rotating shaft of an adjusting handle of the fire-fighting fan-shaped screen water gun, an output shaft of the speed reducer is provided with a driving gear, and the driving gear is engaged with the transmission gear; the human body infrared induction sensor and the servo motor are respectively connected with the controller.
5. The sprinkler accessory of a fire engine of claim 4, wherein when the fire engine is used for road sprinkler operation, the controller obtains the conditions of pedestrians at the two sides and in front of the fire engine through the human body infrared sensor, if no pedestrians are found at the two sides of the fire engine or the pedestrians at the two sides of the fire engine are far away, the controller drives the servo motor to adjust the rotating shaft of the adjusting handle to a conventional gear, so that the fan-shaped radius of the water mist sprayed by the fire fan-shaped screen water gun is set to a preset value; work as the controller passes through human infrared induction sensor discovery pedestrian is close apart from fire engine both sides distance, by the controller drive servo motor rotates, will adjustment handle's pivot is adjusted to pedestrian's protection gear, thereby will the fan-shaped radius of water smoke when adjusting to can avoiding the pedestrian is sprayed apart from to the water smoke of fire control fan-shaped screen squirt.
6. The sprinkler fitting of a fire engine of claim 5, wherein the fan-shaped screen water gun is provided with a pressure sensor, the pressure sensor is connected with a controller, the controller obtains the water pressure in the screen water gun through the pressure sensor, judges the size of the fan-shaped radius of the water mist sprayed by the fan-shaped screen water gun according to the water pressure, and then adjusts the rotating shaft gear of the adjusting handle through a servo motor, so as to adjust the size of the fan-shaped radius of the water mist of the fan-shaped screen water gun to a required value.
7. The sprinkler fitting of a fire fighting truck of claim 6, wherein a pair of gradually sized drainage slits are vertically formed in the screen dam, the pair of gradually sized drainage slits being integrally arc-shaped and abutting against the inside of the screen slit for forming a fan-shaped water curtain on the fire fighting fan-shaped screen water gun; through setting up a pair of sluicing gap of gradual change size for the water pressure of screen wind gap inboard left and right sides position reduces to the direction gradual change of left and right sides, and then makes fan-shaped water curtain reduce at the water smoke range gradual change of left and right sides position, thereby forms fan-shaped water curtain is at the water curtain edging effect of left and right sides position, thereby makes fan-shaped water curtain narrows down in the width of left and right sides orientation.
8. The sprinkler attachment of a fire engine of claim 7, wherein said gradually sized bleed openings on the left side gradually increase in size to the left; the drainage gap with gradually changed size on the right side gradually increases towards the right side.
9. A sprinkler fitting of a fire fighting truck as defined in claim 8, wherein a water cover is further provided on said screen dam to cover said water escape slit, said water cover being provided with an electrically adjustable water escape valve connected to said controller, said controller adjusting the amount of water escape from said water escape slit by said electrically adjustable water escape valve, thereby adjusting the width of said fan-shaped water curtain in the left-right direction; the controller respectively adjusts the fan-shaped radius of the water mist of the fire-fighting fan-shaped screen water gun and the width of the fan-shaped water curtain in the left and right directions through the servo motor and the electric adjusting drain valve, so that a water spraying mode capable of effectively avoiding pedestrians and achieving the best spraying effect is formed.
10. A fire truck sprinkler attachment as claimed in claim 9, wherein the screen dam is further provided with a proximity spray head to which water discharged from the electrically adjustable drain valve is piped for short-range diffusion spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011319346.XA CN112494861B (en) | 2020-11-23 | 2020-11-23 | Watering accessory of fire engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011319346.XA CN112494861B (en) | 2020-11-23 | 2020-11-23 | Watering accessory of fire engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112494861A true CN112494861A (en) | 2021-03-16 |
| CN112494861B CN112494861B (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011319346.XA Active CN112494861B (en) | 2020-11-23 | 2020-11-23 | Watering accessory of fire engine |
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| Country | Link |
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| CN (1) | CN112494861B (en) |
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| US20080099212A1 (en) * | 2006-10-17 | 2008-05-01 | Ted-Xuan Do | Modified Fire Fighting Truck |
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| CN204193365U (en) * | 2014-09-17 | 2015-03-11 | 青特集团有限公司 | A kind of mountain forest fire fighting truck |
| CN204395280U (en) * | 2015-01-12 | 2015-06-17 | 李雪飞 | A kind of minipumper being convenient to community's walking |
| CN204728254U (en) * | 2015-06-10 | 2015-10-28 | 中国新兴保信建设总公司 | A kind of spray sprinkler |
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| CN206562589U (en) * | 2016-12-31 | 2017-10-17 | 天津简氏环保技术有限公司 | A kind of Novel street sprinkler water injector |
| CN206768698U (en) * | 2017-06-08 | 2017-12-19 | 周庭秀 | A kind of road environmental protection and energy saving cleaning device |
| CN108367303A (en) * | 2015-12-01 | 2018-08-03 | 卡特彼勒公司 | Spray modes regulating system for nozzle |
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2020
- 2020-11-23 CN CN202011319346.XA patent/CN112494861B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080099212A1 (en) * | 2006-10-17 | 2008-05-01 | Ted-Xuan Do | Modified Fire Fighting Truck |
| US20100314468A1 (en) * | 2009-06-15 | 2010-12-16 | Dae Suk Han | Water-saving shower head with extension utilizing air-pressure |
| CN102989100A (en) * | 2012-11-26 | 2013-03-27 | 中国科学技术大学 | Centrifugal diversion fire-fighting water curtain sprinkler head with arc-shaped nozzle |
| CN204193365U (en) * | 2014-09-17 | 2015-03-11 | 青特集团有限公司 | A kind of mountain forest fire fighting truck |
| CN204395280U (en) * | 2015-01-12 | 2015-06-17 | 李雪飞 | A kind of minipumper being convenient to community's walking |
| CN204728254U (en) * | 2015-06-10 | 2015-10-28 | 中国新兴保信建设总公司 | A kind of spray sprinkler |
| CN108367303A (en) * | 2015-12-01 | 2018-08-03 | 卡特彼勒公司 | Spray modes regulating system for nozzle |
| CN205341078U (en) * | 2016-02-02 | 2016-06-29 | 台州市广丰塑业有限公司 | Fan -shaped water column shower nozzle of atomizer |
| CN206562589U (en) * | 2016-12-31 | 2017-10-17 | 天津简氏环保技术有限公司 | A kind of Novel street sprinkler water injector |
| CN206768698U (en) * | 2017-06-08 | 2017-12-19 | 周庭秀 | A kind of road environmental protection and energy saving cleaning device |
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| CN112494861B (en) | 2021-09-28 |
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