CN102828460B - The integrated sprinkler system of high-low pressure and engineering machinery - Google Patents
The integrated sprinkler system of high-low pressure and engineering machinery Download PDFInfo
- Publication number
- CN102828460B CN102828460B CN201210335418.9A CN201210335418A CN102828460B CN 102828460 B CN102828460 B CN 102828460B CN 201210335418 A CN201210335418 A CN 201210335418A CN 102828460 B CN102828460 B CN 102828460B
- Authority
- CN
- China
- Prior art keywords
- low pressure
- pressure
- water
- waterway
- water pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/50—Methods or devices for preventing dust by spraying or sucking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses the integrated sprinkler system of a kind of high-low pressure and engineering machinery, wherein, the integrated sprinkler system of this high-low pressure comprises water source, water pump, power source, low pressure waterway and high pressure water circuit, wherein, the water inlet of described water pump is connected with described water source, described power source is connected with described water pump, and the delivery port of described water pump is connected with low pressure waterway and high pressure water circuit respectively; The delivery port of described water pump is also connected with the switching device of the described low pressure waterway of selective connection.The integrated high and low pressure sprinkling pipeline of the integrated sprinkler system of high-low pressure of the present invention, and separately control high-low pressure water route, low pressure watering can be realized, the impact force of high pressure washing can be ensured again.
Description
Technical field
The present invention relates to engineering machinery field, particularly the integrated sprinkler system of a kind of high-low pressure and there is the engineering machinery of this sprinkler system.
Background technology
The pavement milling machine course of work produces a large amount of dust, and milling cutter scraping ground produces amount of heat.In order to improve working environment, prevent from overheated reduction milling cutter application life, generally adopting atomized water depositing dust and cooling milling cutter.After milling machine work a period of time, need to clean in time the defective material (cement, pitch etc.) being deposited in the place such as mobile devices, conveyer, prevent defective material from condensing and be difficult to cleaning, thus scratch belt or mutually motion component surface, defective material is piled up also will affect hydraulic component heat radiation.
Improve the impact force of high pressure washing, to clear up defective material completely, need the operating pressure improving high-pressure washing system.Therefore current large-scale pavement milling machine is designed with high pressure, low pressure two cover system all respectively.Low pressure sprinkler system (operating pressure 0-20bar), provides atomized water to realize depositing dust and the function cooling milling cutter.High-pressure washing system (operating pressure >=80bar), clears up defective material by water jets under high pressure.But the sprinkler system of existing pavement milling machine is complicated, and cost is high, in addition high pressure, low pressure two cover system, and trouble point is many, and fault rate is high.
Summary of the invention
In view of this, the present invention proposes the integrated sprinkler system of a kind of high-low pressure and has the engineering machinery of this sprinkler system, the integrated high and low pressure sprinkling pipeline of this sprinkler system, and separately controls high-low pressure water route, low pressure can sprinkle water, can ensure again the impact force of high pressure washing.
To achieve these goals, one aspect of the present invention provides the integrated sprinkler system of a kind of high-low pressure, comprises water source, water pump, power source, low pressure waterway and high pressure water circuit, wherein,
The water inlet of described water pump is connected with described water source, and described power source is connected with described water pump, and the delivery port of described water pump is connected with low pressure waterway and high pressure water circuit respectively;
The delivery port of described water pump is also connected with the switching device of the described low pressure waterway of selective connection.
Further, described switching device is electromagnetic switch valve, and it is connected in described low pressure waterway.
Further, described switching device is reversal valve, described reversal valve has water inlet, the first delivery port and the second delivery port, and described water inlet is connected with the delivery port of described water pump, and described first delivery port and described second delivery port are connected to described low pressure waterway and described high pressure water circuit respectively.
Further, described low pressure waterway is connected with the pressure setting device of the maximum hydraulic pressure for adjusting described low pressure waterway.
Further, described pressure setting device is overflow valve or reducing valve.
Further, described high pressure water circuit is connected with overflow valve.
Further, described high pressure water circuit has the high pressure end for connecting high-pressure nozzle, and described high pressure end is provided with stop valve;
And/or,
Described low pressure waterway has multiple low pressure end for connecting sprinkler tip, and low pressure end is provided with stop valve at least partly.
Further, the flow that exports of described water pump and pressure adjustable.
Further, described power source is hydraulic motor or motor.
Another aspect of the present invention also provides a kind of engineering machinery, is provided with the integrated sprinkler system of high-low pressure as above.
The water pump of the integrated sprinkler system of high-low pressure of the present invention respectively with water source, power source and low pressure waterway, high pressure water circuit connects, it draws water from water source, and by the power of power source, the pressure water source that mineralization pressure is different, flow to low pressure waterway and high pressure water circuit respectively, high pressure water circuit is for connecting high-pressure flushing gun head, low pressure waterway is for connecting sprinkler tip and other sprinkler tips after milling hub, and water pump is also connected with switching device in this embodiment, optionally low pressure waterway can be connected by this switching device, supply water to low pressure waterway or high pressure water circuit with making pump suction sump, be convenient to control respectively two kinds of water routes.The integrated high and low pressure sprinkling pipeline of the integrated sprinkler system of high-low pressure of the present invention, and separately control high-low pressure water route, low pressure watering can be realized, the impact force of high pressure washing can be ensured again.
A kind of engineering machinery provided by the invention has the integrated sprinkler system of above-mentioned high-low pressure, therefore also has above-mentioned same effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the integrated sprinkler system of high-low pressure of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Below in conjunction with Fig. 1, be described in further detail the preferred embodiments of the present invention, embodiment in the present invention, for milling machine, introduces connection and the course of work of the integrated sprinkler system of high-low pressure of the present invention in detail:
As shown in Figure 1, the integrated sprinkler system embodiment of a kind of high-low pressure provided of the present invention, comprise water source, water pump 3, power source 6, low pressure waterway and high pressure water circuit, wherein, the water inlet of water pump 3 is connected with water source, and power source 6 is connected with water pump 3, and the delivery port of water pump 3 is connected with low pressure waterway and high pressure water circuit respectively, low pressure waterway is connected with the pressure setting device of the hydraulic pressure for adjusting low pressure waterway, and the delivery port of water pump 3 is also connected with the switching device 4 of selective connection low pressure waterway.
The water pump 3 of the integrated sprinkler system of high-low pressure of the present invention respectively with water source, power source 6 and low pressure, high pressure water circuit connects, it draws water from water source, and by the power of power source 6, the pressure water source that mineralization pressure is different, flow to low pressure waterway and high pressure water circuit respectively, high pressure water circuit is for connecting high-pressure flushing gun head, low pressure waterway is for connecting sprinkler tip and other sprinkler tips after milling hub, and water pump 3 is also connected with switching device 4 in this embodiment, optionally low pressure waterway can be connected by this switching device 4, water pump 3 is optionally supplied water to low pressure waterway or high pressure water circuit, be convenient to control respectively two kinds of water routes.The integrated high and low pressure sprinkling pipeline of the integrated sprinkler system of high-low pressure of the present invention, and separately control high-low pressure water route, low pressure watering can be realized, the impact force of high pressure washing can be ensured again.
It should be noted that, power source 6 in this embodiment can be preferably hydraulic motor or motor etc., flow, the pressure and other parameters of water pump 3 preferably can according to the power input adjustment of power source 6, such as when power source 6 slow-speed of revolution input power, the water that water pump 3 discharge pressure is lower, can directly for low pressure waterway, when the high rotating speed input power of power source 6, the water that water pump 3 discharge pressure is higher, can directly for high pressure water circuit, or for low pressure waterway after pressure adjusting.Or water pump 3 of the present invention can be the combination of many pumps, different water pumps provides different flows, the current output of pressure, then according to different current demands, enables different water pumps and supplies water to water route.Or the independently water pump in many pump combinations can adjust the parameter exporting current, then enables water pump according to current demand and supplies water.
Below in conjunction with Fig. 1, the preferred embodiments of the present invention are described in further detail:
As shown in Figure 1, the water inlet of water pump 3 is connected with water source (or water tank), and, the water route between the water inlet and water source of water pump 3 is also provided with stop valve 1 and strainer 2.Stop valve 1 is used as the master switch in water route, and strainer 2 can be avoided occurring foreign material in water route, blocking water route or other elements.The delivery port of water pump 3 connects low pressure waterway and high pressure water circuit respectively, and in this embodiment, switching device 4 is connected with the delivery port of water pump 3, and is arranged in low pressure waterway.In the present embodiment, this switching device 4 is preferably electromagnetic switch valve, and be connected in low pressure waterway, state is configured to normally closed.This electromagnetic switch valve can be electrically connected with the general control system of milling machine, so that when milling machine work (namely advancing and the rotation of milling hub), this switching device 4 is opened, to the sprinkler tip watering after milling hub simultaneously.
Those skilled in the art should be understood that, as shown in Figure 1, because milling machine is except cooling milling cutter needs low pressure water-spraying control, also other positions or component are had also to need low pressure atomizing water to realize the functions such as dedusting, so the low pressure waterway in this embodiment preferably has multiple end, connect different sprinkler heads respectively, and, in the plurality of end, stop valve 1 can be set at least partly, so that Artificial Control, only sprinkle water when needs, it should be noted that, preferred except not arranging stop valve before milling cutter herein, so that during milling machine work, the sprinkling pipeline of milling cutter can be opened simultaneously, and do not need manually to open, prevent manual operation from occurring forgeing or other maloperations, causing trouble.
For the ease of arranging the maximum hydraulic pressure of low pressure waterway conveying, except providing except the hydraulic pressure of expection by setting power source 6 and water pump 3, can also by the pressure setting device connected on low pressure waterway for adjusting hydraulic pressure, as shown in Figure 1, preferably on low pressure waterway, connect overflow valve 5, set the maximum hydraulic pressure of low pressure waterway by the oil pressure relief setting overflow valve 5.When the hydraulic pressure that water pump 3 provides is than the hydraulic pressure height of expecting, the hydraulic pressure of low pressure waterway can be set up by setting overflow valve 5; Compare and select applicable power source 6 and water pump 3, and export expection hydraulic pressure both setting up and compare, by arranging and setting up overflow valve 5 to adjust low pressure waterway hydraulic pressure more convenient, practical.Select overflow valve 5 as pressure setting device herein, the safety of low pressure waterway can also be ensured when low pressure waterway hydraulic pressure is too high, when avoiding hydraulic pressure too high, damage is caused to water route parts.
Correspondingly, also can setting pressure setting device at high pressure water circuit, and preferably overflow valve 7, as pressure setting device, can protect the safety of high pressure water circuit simultaneously.
As the alternative of pressure setting device, the pressure setting device in above-described embodiment can be configured to reducing valve, the reducing valve that the power source 6 adopted according to reality and water pump 3 combine and the water route pressure selection that needs is suitable, preferred fixed pressure reducing valve.The safety in water route when it should be noted that to ensure that hydraulic pressure is too high, can coordinate reducing valve to use overflow valve to realize safety overflow.
As shown in Figure 1, the end of high pressure water circuit is also provided with stop valve 1, facilitates milling machine operating personnel can be connected to the high pressure washing hydraulic giant of high pressure water circuit end by this stop valve 1 switch.
Should be noted that, the configuration mode of the integrated sprinkler system of high-low pressure as shown in Figure 1, namely switching device 4 is configured to electromagnetic switch valve, and be arranged on low pressure waterway, decapacitation realizes outside above-mentioned functions, also has its extra effect: when water pump 3 works water supply, high pressure water circuit always stays open, when the switching device 4 of low pressure waterway, namely when electromagnetic switch valve is opened, water pump 3 supplies water to high pressure water circuit and low pressure waterway simultaneously, now the overflow valve 5 of low pressure waterway and the overflow valve 7 of high pressure water circuit are connected in water route simultaneously, two overflow valves can play the effect of duplicate protection, when overflow valve 5 break down cannot normally overflow time, overflow protection can be realized by overflow valve 7.
Certainly, except this kind of configuration mode, switching device 4 can also adopt solenoid operated directional valve, tee ball valve etc., and is connected to the outlet of water pump 3, and the outlet of solenoid operated directional valve or tee ball valve connects low pressure waterway and high pressure water circuit respectively.In the low pressure waterway connected and high pressure water circuit, can pressure setting device, overflow valve and stop valve etc. be set respectively.Switching device 4 also can adopt other manual reversal valves etc.
Various embodiment in sum and preferred version, the integrated sprinkler system of high-low pressure provided by the invention, has the following advantages:
1, single pressure water source, single system realize low pressure watering and high pressure washing function, and system architecture simplifies greatly, and cost and fault rate reduce greatly;
2, be designed with pressure setting device, and adopt overflow valve as pressure setting device, while realizing pressure regulation, overvoltage protection is carried out to water pump and whole system;
3, this system low-voltage watering, high pressure washing can pressure regulation separately, under adapting to different operating mode, to the different demands of the water yield and pressure.
Correspondingly, also provide a kind of engineering machinery, it is provided with the integrated sprinkler system of high-low pressure as above.As mentioned above, this project machinery is preferably milling machine.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the integrated sprinkler system of high-low pressure, is characterized in that, comprises water source, water pump (3), power source (6), low pressure waterway and high pressure water circuit, wherein,
The water inlet of described water pump (3) is connected with described water source, and described power source (6) is connected with described water pump (3), and the delivery port of described water pump (3) is connected with low pressure waterway and high pressure water circuit respectively;
The delivery port of described water pump (3) is also connected with the switching device (4) of the described low pressure waterway of selective connection;
Described low pressure waterway is connected with the pressure setting device of the maximum hydraulic pressure for adjusting described low pressure waterway;
Described pressure setting device is overflow valve (5).
2. the integrated sprinkler system of high-low pressure according to claim 1, is characterized in that, described switching device (4) is electromagnetic switch valve, and it is connected in described low pressure waterway.
3. the integrated sprinkler system of high-low pressure according to claim 1, it is characterized in that, described switching device (4) is reversal valve, described reversal valve has water inlet, the first delivery port and the second delivery port, described water inlet is connected with the delivery port of described water pump (3), and described first delivery port and described second delivery port are connected to described low pressure waterway and described high pressure water circuit respectively.
4. the integrated sprinkler system of high-low pressure according to claim 1, is characterized in that, described high pressure water circuit is connected with overflow valve (7).
5. the integrated sprinkler system of high-low pressure according to claim 4, is characterized in that, described high pressure water circuit has the high pressure end for connecting high-pressure nozzle, and described high pressure end is provided with stop valve (1);
And/or,
Described low pressure waterway has multiple low pressure end for connecting sprinkler tip, and low pressure end is provided with stop valve (1) at least partly.
6. the integrated sprinkler system of high-low pressure according to claim 1, is characterized in that, the flow that described water pump (3) exports and pressure adjustable.
7. the integrated sprinkler system of high-low pressure according to claim 1, is characterized in that, described power source (6) is hydraulic motor or motor.
8. an engineering machinery, is characterized in that, is provided with sprinkler system as integrated in the high-low pressure in claim 1-7 as described in any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335418.9A CN102828460B (en) | 2012-09-12 | 2012-09-12 | The integrated sprinkler system of high-low pressure and engineering machinery |
| PCT/CN2012/086003 WO2014040350A1 (en) | 2012-09-12 | 2012-12-06 | High and low pressure integrated water sprinkler system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335418.9A CN102828460B (en) | 2012-09-12 | 2012-09-12 | The integrated sprinkler system of high-low pressure and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102828460A CN102828460A (en) | 2012-12-19 |
| CN102828460B true CN102828460B (en) | 2015-10-14 |
Family
ID=47331752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210335418.9A Active CN102828460B (en) | 2012-09-12 | 2012-09-12 | The integrated sprinkler system of high-low pressure and engineering machinery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102828460B (en) |
| WO (1) | WO2014040350A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696350B (en) * | 2014-01-10 | 2016-01-20 | 戴纳派克（中国）压实摊铺设备有限公司 | Milling machine sprinkling control system and control method thereof |
| CN104791230A (en) * | 2015-04-02 | 2015-07-22 | 徐州徐工筑路机械有限公司 | Control system for changing pressure of single water pump |
| CN105464666B (en) * | 2015-12-30 | 2017-10-13 | 天地上海采掘装备科技有限公司 | A kind of water system for adopting aluminium machine |
| CN105755930B (en) * | 2016-05-03 | 2018-04-10 | 徐州徐工筑路机械有限公司 | A kind of wide flow pitch weighs and sprinkling system |
| CN106762898B (en) * | 2016-11-22 | 2018-07-10 | 柳工无锡路面机械有限公司 | A kind of pavement milling machine height hydraulic pressure switching mechanism and water injection system and method |
| CN107747269A (en) * | 2017-11-21 | 2018-03-02 | 山推工程机械股份有限公司 | A kind of sprinkling control system and its control method |
| CN108331794B (en) * | 2018-02-09 | 2020-06-26 | 安徽工程大学 | Hydraulic pressure reposition of redundant personnel system of arbitrary distribution pressure proportion |
| CN108729399A (en) * | 2018-05-30 | 2018-11-02 | 扬州盛达特种车有限公司 | A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system |
| CN111395242A (en) * | 2020-04-13 | 2020-07-10 | 徐州徐工环境技术有限公司 | Road surface maintenance vehicle compatible with high-low pressure cleaning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2688318Y (en) * | 2004-04-08 | 2005-03-30 | 严学书 | High-pressure watercart |
| CN2695130Y (en) * | 2004-02-26 | 2005-04-27 | 西南交通大学 | Hydraulic flushing device |
| WO2006096921A1 (en) * | 2005-03-18 | 2006-09-21 | L.M. & L.M. Knight Pty Ltd | Slurry recovery and separation |
| CN201198558Y (en) * | 2008-05-07 | 2009-02-25 | 长沙中联重工科技发展股份有限公司 | Low pressure sprinkling adjustable system of milling and planing machine |
| CN202315053U (en) * | 2011-11-07 | 2012-07-11 | 三一重工股份有限公司 | Water inlet-outlet pipeline system based on high-low pressure water pump as well as fire fighting apparatus |
| CN102561165A (en) * | 2012-01-11 | 2012-07-11 | 中联重科股份有限公司 | Milling machine and sprinkling and flushing device thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB344081A (en) * | 1929-02-13 | 1931-03-05 | Eduard Linnhoff | Improvements relating to vehicular road-sprinkling apparatus for tar and the like |
| JP3769049B2 (en) * | 1995-06-28 | 2006-04-19 | 酒井重工業株式会社 | Compaction machine spraying equipment |
| US5890834A (en) * | 1997-01-28 | 1999-04-06 | Wacker Corporation | Vibratory plate machine with a water supply system and mehtod of using the same |
-
2012
- 2012-09-12 CN CN201210335418.9A patent/CN102828460B/en active Active
- 2012-12-06 WO PCT/CN2012/086003 patent/WO2014040350A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695130Y (en) * | 2004-02-26 | 2005-04-27 | 西南交通大学 | Hydraulic flushing device |
| CN2688318Y (en) * | 2004-04-08 | 2005-03-30 | 严学书 | High-pressure watercart |
| WO2006096921A1 (en) * | 2005-03-18 | 2006-09-21 | L.M. & L.M. Knight Pty Ltd | Slurry recovery and separation |
| CN201198558Y (en) * | 2008-05-07 | 2009-02-25 | 长沙中联重工科技发展股份有限公司 | Low pressure sprinkling adjustable system of milling and planing machine |
| CN202315053U (en) * | 2011-11-07 | 2012-07-11 | 三一重工股份有限公司 | Water inlet-outlet pipeline system based on high-low pressure water pump as well as fire fighting apparatus |
| CN102561165A (en) * | 2012-01-11 | 2012-07-11 | 中联重科股份有限公司 | Milling machine and sprinkling and flushing device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102828460A (en) | 2012-12-19 |
| WO2014040350A1 (en) | 2014-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102828460B (en) | The integrated sprinkler system of high-low pressure and engineering machinery | |
| CN102505715B (en) | Slag skimming machine with automatic water mist dust suppression device | |
| CN107409953A (en) | A kind of water-saving spray irrigation system | |
| CN108480269A (en) | A kind of multifunctional high pressure water jet flusher | |
| JP2017218759A (en) | Method and apparatus for suppressing dust scatter | |
| CN201198558Y (en) | Low pressure sprinkling adjustable system of milling and planing machine | |
| CN105065056A (en) | Coal mine underground multi-stage energy-saving roadway cleaning device | |
| CN201300102Y (en) | Adjustable rotating sprinkler | |
| CN102392470B (en) | Excavator with automatic spray dust suppression device | |
| CN106762898B (en) | A kind of pavement milling machine height hydraulic pressure switching mechanism and water injection system and method | |
| CN206535682U (en) | A kind of multifunctional spray dust suppression car | |
| CN104791230A (en) | Control system for changing pressure of single water pump | |
| CN209194415U (en) | A kind of energy saver for spraying water with high pressure | |
| CN203525997U (en) | Feeding system for boat spray-coating machine | |
| CN103521367A (en) | Efficient and abrasion-resisting nozzle with swirl flow core | |
| CN218798005U (en) | Photovoltaic cleaning system | |
| CN206165360U (en) | Water saving and spraying control device for landscaping | |
| CN205868653U (en) | Saw -dust glue -spray system | |
| CN210172759U (en) | Novel slag flushing device | |
| CN210857083U (en) | Watering lorry with adjustable spraying range | |
| CN209613671U (en) | A kind of suction nozzle washer | |
| CN209405926U (en) | A kind of windrow synchronization device for reducing dust | |
| CN204692067U (en) | Single water pump pressure changeable control system | |
| CN205199620U (en) | Ball mill grinding aid spray set | |
| CN205143306U (en) | Spraying controlling means of agricultural spraying machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |