CN108552144A - A kind of novel agrochemical chemical spraying device - Google Patents

A kind of novel agrochemical chemical spraying device Download PDF

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Publication number
CN108552144A
CN108552144A CN201810292023.2A CN201810292023A CN108552144A CN 108552144 A CN108552144 A CN 108552144A CN 201810292023 A CN201810292023 A CN 201810292023A CN 108552144 A CN108552144 A CN 108552144A
Authority
CN
China
Prior art keywords
fixedly connected
side wall
spraying device
chemical spraying
water tank
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.)
Withdrawn
Application number
CN201810292023.2A
Other languages
Chinese (zh)
Inventor
宗寒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lan Xin Environmental Protection Technology Co Ltd Of Ma'an Mountain
Original Assignee
Lan Xin Environmental Protection Technology Co Ltd Of Ma'an Mountain
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lan Xin Environmental Protection Technology Co Ltd Of Ma'an Mountain filed Critical Lan Xin Environmental Protection Technology Co Ltd Of Ma'an Mountain
Priority to CN201810292023.2A priority Critical patent/CN108552144A/en
Publication of CN108552144A publication Critical patent/CN108552144A/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0025Mechanical sprayers
    • A01M7/0032Pressure sprayers
    • A01M7/0035Pressure sprayers mounted on a frame and guided by hand; Spray barrow
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/005Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0082Undercarriages, frames, mountings, couplings, tanks
    • A01M7/0085Tanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00Dissolving
    • B01F21/10Dissolving using driven stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/19Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention discloses a kind of novel agrochemical chemical spraying devices, including bottom plate, the upper surface of bottom plate is fixedly connected sequentially has spooler from left to right, small pump, water tank and mobile power, spray hose is wrapped on spooler, the input terminal of spray hose is fixedly connected with the output end of small pump, the input terminal of small pump is fixedly connected with the side wall of water tank, chemical feed pipe is fixedly connected at the top of water tank, explosive box and filler, unidirectional liquid valve is equipped between chemical feed pipe and explosive box, the left side wall lower end of chemical feed pipe is fixedly connected with connecting tube, unidirectional liquid feed valve is connected in connecting tube, one end of connecting tube is connected to the side wall of water tank.The present invention is easy to operate, individually chemical spraying device can be pushed to spray, convenient to spray to the crops of different height, reduces the working strength of labourer, and dosage for user-friendly control, while can allow medicament to quickly dissolve in water.

Description

A kind of novel agrochemical chemical spraying device
Technical field
The present invention relates to pesticide spray technique field more particularly to a kind of novel agrochemical chemical spraying devices.
Background technology
Pesticide chemical spraying device, also referred to as spraying machine are to spray the liquid into object table by pressure after mixing water with liquid A kind of agricultural machinery and implement in face, be primarily adapted for use in forest, nursery, orchard, tea place the prevention and control of plant diseases, pest control, city, suburb gardens flowers and trees, The places such as prevention and control of plant diseases, pest control of plant use in vegetables field and material greenhouse, and due to the limitation in place, Backpack type spraying machine makes most A kind of common chemical spraying device.
In the prior art, existing Backpack type spraying machine needs when use to give chemical spraying device pressurization manually, while another Hand needs to hold spray head, supports spray head according to the height of plant hand, although there is electronic chemical spraying device, but needs to make User, which backs on the body, to spray, and the great work intensity of user when use, also person inconvenient to use controls dosage, and does not have There is the agitating device of auxiliary, solution rate is also slow in water and mixing is uneven for drug.
Invention content
The purpose of the present invention is to solve the great work intensities of labourer when spraying in the prior art, need manual support Spray height, nor dosage for user-friendly control, while solution rate is also slow in water and mixing is uneven for drug The problem of, and a kind of novel agrochemical chemical spraying device proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of novel agrochemical chemical spraying device, including bottom plate, the upper surface of the bottom plate are fixedly connected sequentially have from left to right Spooler, small pump, water tank and mobile power are wrapped with spray hose, the input of the spray hose on the spooler End is fixedly connected with the output end of small pump, and the input terminal of the small pump is fixedly connected with the side wall of water tank, the water It is fixedly connected with chemical feed pipe, explosive box and filler at the top of case, unidirectional liquid valve is equipped between the chemical feed pipe and explosive box, The left side wall lower end of the chemical feed pipe is fixedly connected with connecting tube, and unidirectional liquid feed valve, the connection are connected in the connecting tube One end of pipe is connected to the side wall of water tank, and the output end of the spray hose is fixedly connected with chemical spraying device, the chemical spraying device Including support column, the side wall of the support column is equipped with cross bar, and T-type sliding block is fixedly connected at the bar wall center of the cross bar, The side wall of the support column offer with the matched T-type sliding slot of T-type sliding block, the bar wall of the cross bar be fixedly connected with it is multiple The L-type supporting rod of even distribution, the horizontal part side wall and vertical portion side wall of multiple L-type supporting rods have been fixedly connected with spray Head, two spray heads are connected to spray hose, and support column right side wall upper end is fixedly connected with handle, the support The lower end of column is fixedly connected with traveling wheel.
Preferably, the side side wall of the T-type sliding block opens up fluted, and spring is equipped in the groove, the spring One end is fixedly connected with the side side wall of groove, and the other end of the spring is fixedly connected with inserted link, and one end of the inserted link is prolonged The inside of T-type sliding slot is extended to, the side side wall of the T-type sliding slot offers and the matched slot of inserted link, the side of the groove Wall offers rectangular opening, and T-type restoring board is slidably connected in the rectangular opening, and the T-type restoring board is fixedly connected with inserted link.
Preferably, the chemical feed pipe is sealing structure, and the chemical feed pipe is internally provided with piston, the upper end of the chemical feed pipe It is connected to T-bar by through-hole movable sleeve, the T-bar is fixedly connected with the piston, and the bar wall of the T-bar is equipped with graduation mark.
Preferably, shaft is rotatably connected at the top center of the water tank, the top of water tank is run through in the lower end of the shaft Portion is simultaneously fixedly connected with multiple paddles, and the upper end of the shaft is fixedly connected with rocking bar.
Preferably, the small pump is electrically connected by controlling switch with mobile power.
Preferably, the lower surface of the bottom plate is fixedly connected with universal wheel, and the universal wheel is equipped with pedal brake plate.
Preferably, the opening of the filler goes out equipped with sealing cover.
Preferably, the top of the explosive box is equipped with opening, and the opening of the explosive box is equipped with sealing-plug.
Preferably, the upper end of the handle is fixedly connected with antiskid glue sleeve.
Compared with prior art, the present invention provides a kind of novel agrochemical chemical spraying device, has following advantageous effect:
1, the novel agrochemical chemical spraying device moves handle, handle drives branch by the way that handle on the support columns is arranged with hand push Dagger moves, and support column drives cross bar movement, cross bar to drive the movement of L-type supporting rod, simultaneously supports column and drives traveling wheel rotation, energy Enough chemical spraying device is facilitated to move, by the spooler being arranged on bottom plate, spray hose is wrapped on spooler, convenient for users to Spray, reduce the working strength of labourer, by equipped with T-type restoring board, move T-type restoring board, T-type restoring board with rubber sleeve Mobile that inserted link movement, inserted link movement is driven to make spring contraction, to make inserted link be detached with slot, while spring is given to inserted link one Reversed power facilitates and adjusts the height that spray is shaken the head, convenient to spray to the crops of different height.
2, the novel agrochemical chemical spraying device moves T-bar, T-bar is moved by the T-bar being arranged on chemical feed pipe with hand push The enough band pistons of kinetic energy move, and T-bar moves up and can generate negative pressure in chemical feed pipe the medicine inside explosive box is made to enter dosing In pipe, the pressure that T-bar moves down generation can get into medicine in water tank, can realize and carry out Quick-adding medicine to water tank inside, together When T-bar be equipped with graduation mark, dosage for user-friendly control.
3, the novel agrochemical chemical spraying device moves T-bar, T-bar moves energy by the rocking bar being arranged in shaft with hand push Enough band pistons move, and convenient for users to being stirred the liquid inside water tank, allow medicament to quickly dissolve in water, prevent Only due to mixing performance that is uneven and influencing drug effect.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, present invention operation It is convenient, individually chemical spraying device can be pushed to spray, it is convenient to spray to the crops of different height, reduce labourer's Working strength, and dosage for user-friendly control, while can allow medicament to quickly dissolve in water.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of novel agrochemical chemical spraying device proposed by the present invention;Fig. 2
For the structural schematic diagram of chemical feed pipe in a kind of novel agrochemical chemical spraying device proposed by the present invention;
Fig. 3 is enlarged drawing at the A in Fig. 1.
In figure:1 spray head, 2L types supporting rod, 3 support columns, 4 handles, 5 spoolers, 6 small pumps, 7 connecting tubes, 8 are unidirectionally Liquid feed valve, 9 chemical feed pipes, 10 unidirectional liquid valves, 11 explosive boxs, 12 rocking bars, 13 shafts, 14 sealing covers, 15 water tanks, 16 movement electricity Source, 17 bottom plates, 18 paddles, 19 universal wheels, 20 spray hoses, 21 traveling wheels, 22T types bar, 23 pistons, 24 cross bars, 25 rectangles Hole, 26T types restoring board, 27T types sliding slot, 28 inserted links, 29T types sliding block, 30 springs.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Referring to Fig.1-3, a kind of novel agrochemical chemical spraying device, including a kind of novel agrochemical chemical spraying device, including bottom plate 17, bottom The upper surface of plate 17 is fixedly connected sequentially from left to right spooler 5, small pump 6, water tank 15 and mobile power 16, spooler Spray hose 20 is wrapped on 5, the input terminal of spray hose 20 is fixedly connected with the output end of small pump 6, small pump 6 Input terminal is fixedly connected with the side wall of water tank 15, and the top of water tank 15 is fixedly connected with chemical feed pipe 9, explosive box 11 and filler, Unidirectional liquid valve 10 is equipped between chemical feed pipe 9 and explosive box 11, the left side wall lower end of chemical feed pipe 9 is fixedly connected with connecting tube 7, even Unidirectional liquid feed valve 8 is connected on take over 7, one end of connecting tube 7 is connected to the side wall of water tank 15, and the output end of spray hose 20 is solid Surely it is connected with chemical spraying device, chemical spraying device includes support column 3, and the side wall of support column 3 is equipped with cross bar 24, in the bar wall of cross bar 24 T-type sliding block 29 is fixedly connected at the heart, the side wall of support column 3 offers and 29 matched T-type sliding slot 27 of T-type sliding block, cross bar 24 bar wall is fixedly connected with multiple equally distributed L-type supporting rods 2, the horizontal part side wall of multiple L-type supporting rods 2 and vertical portion Side wall has been fixedly connected with spray head 1, and two spray heads 1 are connected to spray hose 20, and 3 right side wall upper end of support column, which is fixed, to be connected It is connected to handle 4, the lower end of support column 3 is fixedly connected with traveling wheel 21.
The side side wall of T-type sliding block 29 opens up fluted, and spring 30, one end of spring 30 and the one of groove are equipped in groove Side side wall is fixedly connected, and the other end of spring 30 is fixedly connected with inserted link 28, and one end of inserted link 28 extends to the interior of T-type sliding slot 27 Portion, the side side wall of T-type sliding slot 27 is offered offers rectangular opening 25, square with 28 matched slot of inserted link, the side wall of groove T-type restoring board 26 is slidably connected in shape hole 25, T-type restoring board 26 is fixedly connected with inserted link 28, the convenient plant to different height Object sprays, and chemical feed pipe 9 is sealing structure, and chemical feed pipe 9 is internally provided with piston 23, and the upper end of chemical feed pipe 9 is lived by through-hole Dynamic to be socketed with T-bar 22, T-bar 22 is fixedly connected with piston 23, and the bar wall of T-bar 22 is equipped with graduation mark, and control is facilitated to add Dose, is rotatably connected to shaft 13 at the top center of water tank 15, and the lower end of shaft 13 is through the top of water tank 15 and fixed connects Multiple paddles 18 are connected to, the upper end of shaft 13 is fixedly connected with rocking bar 12, convenient to be stirred to the drug inside water tank 15, Small pump 6 is electrically connected by controlling switch with mobile power 16, facilitates the switch of control small pump 6, under bottom plate 17 Surface is fixedly connected with universal wheel 19, and universal wheel 19 is equipped with pedal brake plate, is moved easily water tank 15 and sprays, filler It is open out equipped with sealing cover 14, prevents the water for being mixed into drug from splashing out outside water tank 15, the top of explosive box 11 is equipped with opening, drug storage The opening of case 11 is equipped with sealing-plug, prevents drug from splashing out explosive box 11,
In the present invention, in use, moving handle 4 with hand push, handle 4 drives support column 3 to move, and support column 3 drives cross bar 24 Mobile, cross bar 24 drives L-type supporting rod 2 to move, and simultaneously supports column 3 and traveling wheel 21 is driven to rotate, and can facilitate promotion spray dress It sets and sprays, move T-type restoring board 26 with rubber sleeve, the movement of T-type restoring board 26 drives inserted link 28 to move, and the movement of inserted link 28 squeezes bullet Spring 31, the contraction of spring 31 makes inserted link 28 be detached with slot, while spring 31 has and is given to 28 1 reversed power of inserted link, facilitates adjusting The height of spray head 1, moves T-bar 22,22 movement of T-bar can be moved with piston 23, facilitate control dosage with hand push.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (9)

1. a kind of novel agrochemical chemical spraying device, including bottom plate (17), which is characterized in that the upper surface of the bottom plate (17) from a left side to The right side, which is fixedly connected sequentially, spooler (5), small pump (6), water tank (15) and mobile power (16), on the spooler (5) It is wrapped with spray hose (20), the input terminal of the spray hose (20) is fixedly connected with the output end of small pump (6), described The input terminal of small pump (6) is fixedly connected with the side wall of water tank (15), and dosing is fixedly connected at the top of the water tank (15) (9), explosive box (11) and filler are managed, unidirectional liquid valve (10) is equipped between the chemical feed pipe (9) and explosive box (11), it is described The left side wall lower end of chemical feed pipe (9) is fixedly connected with connecting tube (7), and unidirectional liquid feed valve (8) is connected on the connecting tube (7), One end of the connecting tube (7) is connected to the side wall of water tank (15), and the output end of the spray hose (20) is fixedly connected with spray Medicine device, the chemical spraying device include support column (3), and the side wall of the support column (3) is equipped with cross bar (24), the cross bar (24) T-type sliding block (29) is fixedly connected at bar wall center, the side wall of the support column (3) offers and T-type sliding block (29) The bar wall of matched T-type sliding slot (27), the cross bar (24) is fixedly connected with multiple equally distributed L-type supporting rods (2), more The horizontal part side wall and vertical portion side wall of a L-type supporting rod (2) have been fixedly connected with spray head (1), two sprays Head (1) is connected to spray hose (20), and support column (3) the right side wall upper end is fixedly connected with handle (4), the support column (3) lower end is fixedly connected with traveling wheel (21).
2. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the one of the T-type sliding block (29) Side side wall opens up fluted, spring (30) is equipped in the groove, one end of the spring (30) and the side side wall of groove are solid Fixed connection, the other end of the spring (30) are fixedly connected with inserted link (28), and one end of the inserted link (28) extends to T-type sliding slot (27) the side side wall of inside, the T-type sliding slot (27) offers and inserted link (28) matched slot, the side of the groove Wall offers rectangular opening (25), and T-type restoring board (26), the T-type restoring board (26) are slidably connected in the rectangular opening (25) It is fixedly connected with inserted link (28).
3. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the chemical feed pipe (9) is sealing Structure, the chemical feed pipe (9) are internally provided with piston (23), and the upper end of the chemical feed pipe (9) is connected to T-type by through-hole movable sleeve Bar (22), the T-bar (22) are fixedly connected with piston (23), and the bar wall of the T-bar (22) is equipped with graduation mark.
4. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that in the top of the water tank (15) Shaft (13) is rotatably connected at the heart, the lower end of the shaft (13) through the top of water tank (15) and is fixedly connected with multiple stir Leaf (18) is mixed, the upper end of the shaft (13) is fixedly connected with rocking bar (12).
5. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the small pump (6) passes through Control switch is electrically connected with mobile power (16).
6. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the lower surface of the bottom plate (17) It is fixedly connected with universal wheel (19), the universal wheel (19) is equipped with pedal brake plate.
7. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the opening of the filler goes out to set There is sealing cover (14).
8. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the top of the explosive box (11) Equipped with opening, the opening of the explosive box (11) is equipped with sealing-plug.
9. a kind of novel agrochemical chemical spraying device according to claim 1, which is characterized in that the upper end of the handle (4) is solid Surely it is connected with antiskid glue sleeve.
CN201810292023.2A 2018-04-03 2018-04-03 A kind of novel agrochemical chemical spraying device Withdrawn CN108552144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810292023.2A CN108552144A (en) 2018-04-03 2018-04-03 A kind of novel agrochemical chemical spraying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810292023.2A CN108552144A (en) 2018-04-03 2018-04-03 A kind of novel agrochemical chemical spraying device

Publications (1)

Publication Number Publication Date
CN108552144A true CN108552144A (en) 2018-09-21

Family

ID=63533851

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Application Number Title Priority Date Filing Date
CN201810292023.2A Withdrawn CN108552144A (en) 2018-04-03 2018-04-03 A kind of novel agrochemical chemical spraying device

Country Status (1)

Country Link
CN (1) CN108552144A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109392874A (en) * 2018-12-07 2019-03-01 徐州腾威机电科技有限公司 A kind of agricultural drug flusher
CN110394104A (en) * 2019-06-25 2019-11-01 南京环美科技股份有限公司 A kind of Rafael nozzle medicine mixing device
CN112021284A (en) * 2020-08-27 2020-12-04 佛山市顺德区顺茵绿化设计工程有限公司 Quantitative blending type pesticide spraying device for landscaping
CN112753684A (en) * 2021-01-07 2021-05-07 徐月芳 Automatic medicine machine of spouting of tealeaves pesticide spraying height-adjustable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109392874A (en) * 2018-12-07 2019-03-01 徐州腾威机电科技有限公司 A kind of agricultural drug flusher
CN110394104A (en) * 2019-06-25 2019-11-01 南京环美科技股份有限公司 A kind of Rafael nozzle medicine mixing device
CN110394104B (en) * 2019-06-25 2024-02-20 南京环美科技股份有限公司 Laval nozzle dosing mixing device
CN112021284A (en) * 2020-08-27 2020-12-04 佛山市顺德区顺茵绿化设计工程有限公司 Quantitative blending type pesticide spraying device for landscaping
CN112753684A (en) * 2021-01-07 2021-05-07 徐月芳 Automatic medicine machine of spouting of tealeaves pesticide spraying height-adjustable

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Application publication date: 20180921

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