EP1147819A1 - Sprühgerät mit Rührwerk - Google Patents

Sprühgerät mit Rührwerk Download PDF

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Publication number
EP1147819A1
EP1147819A1 EP01400693A EP01400693A EP1147819A1 EP 1147819 A1 EP1147819 A1 EP 1147819A1 EP 01400693 A EP01400693 A EP 01400693A EP 01400693 A EP01400693 A EP 01400693A EP 1147819 A1 EP1147819 A1 EP 1147819A1
Authority
EP
European Patent Office
Prior art keywords
turbine
tank
pump
mixture
agitator
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.)
Granted
Application number
EP01400693A
Other languages
English (en)
French (fr)
Other versions
EP1147819B1 (de
Inventor
Patrice Ballu
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.)
Exel Industries SA
Original Assignee
Exel Industries SA
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 Exel Industries SA filed Critical Exel Industries SA
Publication of EP1147819A1 publication Critical patent/EP1147819A1/de
Application granted granted Critical
Publication of EP1147819B1 publication Critical patent/EP1147819B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades

Definitions

  • the present invention relates to a spraying device of the kind comprising a reservoir intended to contain a spray mixture, composed of a liquid and a treatment product, an actuatable pressurizing device for placing under pressure at least part of the mixture contained in the tank, a means agitator for agitating the mixture contained in the tank, and at least one hose for lead the pressurized mixture to a member for spraying said mixture.
  • Spraying devices of this kind are well known devices, domestic, agricultural or industrial use, with many applications. They allow for example all insecticide, bactericide, fungicide treatments, herbicides, pesticides and rodenticides, disinfection, deodorization, watering, spraying of oils, lime, water-based paints, polishes, products antistatic, etc.
  • the pressurizing device consists of a air pump, manually actuated, which is arranged to draw air to outside the tank and to push it back into it to establish a certain air pressure.
  • the liquid spraying member produced for example in the form a pistol or a lance, is equipped with a projection nozzle and a valve normally closed, which can be opened by action on a control carried by the handle of the spray gun or liquid spray lance.
  • the gun or lance is connected to the tank by a flexible hose which is extended in the tank by a dip tube extending to the bottom of said tank. So when the user acts on the control member to open the discharge valve, the liquid contained in the reservoir is driven out of it by the air pressure which there reigns, and is projected outside through the flexible pipe, the discharge valve now open and the spray nozzle of the pistol or lance.
  • the pressurizing device is housed in the tank and has a cylinder and piston pump, one of whose cylinder and piston can be manually operated from outside the tank to suck in contained liquid into it and discharge it into an air bell axially aligned with the cylinder of the pump.
  • the projection member (pistol or lance for projecting liquid) is connected by a flexible hose to the air bell.
  • Such devices sprayers called pressure sprayers, have been or are still being manufactured and marketed for example by the company BERTHOUD under the name "COSMOS 18" and by the TECNOMA Company under the name "T18".
  • the air bell and the cylinder or the piston of the pump form a moving part, which moves vertically back and forth inside the tank when the pump is operated manually, for example using a mechanism maneuver consisting of an oscillating lever and a connecting rod located outside the tank.
  • the agitator paddle moves vertically back and forth with said moving assembly to agitate the liquid contained in the tank.
  • the disadvantage of this agitation system is that, by construction, the agitator paddle is relatively far from the bottom of the tank, i.e. of the area of the reservoir in which the liquid is sucked and which is the most important to shake. Indeed, in particular in the case where the treatment product is a powdered product which is not easily and quickly soluble, it has tendency to settle, by decantation, on the bottom of the tank and possibly form lumps that can clog the suction port (s) through which the spray mixture is sucked up by the pump.
  • GB 793,275 cannot therefore teach how solve the problem mentioned above about sprayers comprising a pump and a paddle agitator, when the treatment product is a powdered product which is not easily and quickly soluble.
  • the present invention therefore aims to solve this problem by providing a spraying apparatus, comprising an agitating means capable of agitating vigorously and to homogenize the mixture contained in the tank, in particular in the lower part of it.
  • the invention provides a spraying device comprising a tank intended to contain a spray mixture, composed of a liquid and a treatment product, a pressurizing device for pressurizing the minus part of the mixture contained in the tank, an agitating means for shake the mixture contained in the tank, and at least one hose to conduct the mixture pressurized to a member for spraying said mixture, said means agitator being constituted by a rotary vane agitator which is driven by a turbine and which comprises at least one pallet oriented so as to create a current liquid suitable for homogenizing the mixture contained in the tank, in particular in the lower part of it, characterized in that the setting device pressure includes a pump, and in that the turbine is arranged in the tank so as to be rotated by a stream of fluid in response to actuation of the pump.
  • the flow of fluid which is generated in response to the actuation of the pressurizing device and which turns the turbine can for example be a air flow in the case where the pressurizing device is constituted by a air pump.
  • the flow of fluid which makes the turbine turn can be constituted by the current of the mixture which is sucked by the pump, or by the current of the mixture which is repressed by the latter.
  • the sprayer shown in Figure 1 includes a reservoir 1 provided with a filling orifice closed by a removable plug 2. Inside of tank 1 is installed a pressurizing device 3 which consists of a pump 4 and an air bell 5 aligned vertically.
  • the air bell 5 can slide in an upper opening of the tank 1 and its upper end is connected by a flexible hose 6 to a member of projection of liquid 7 produced for example in the form of a lance.
  • Spear 7 is equipped with a spray nozzle 8, preferably with adjustable jet, and a valve outlet (not shown), normally closed, which can be opened by pressing a control member 9 carried by the handle 10 of the spray lance liquid.
  • the spraying apparatus also comprises, in a known manner in itself, a mechanism 11 (FIG. 1) allowing the actuation of the pump 4.
  • This mechanism 11 is essentially constituted by an operating lever 12 and by a connecting rod 13.
  • the lever 12 substantially L-shaped, carries a handle 14 to the end of its vertical branch 12a, and its horizontal branch 12b can pivot in a bearing 15, fixed to the lower part of the tank 1.
  • the connecting rod 13 substantially in the shape of an inverted U, is articulated on the one hand, by the ends of its branches 13a and 13b, to the arms 16 of the lever 12 and, on the other hand, by its transverse part 13c, to the upper part of the air bell 5 which projects outside the tank 1.
  • the piston 17 of the pump 4 is linked to the lower end of the air bell 5 so as to be moved vertically with it when the operating mechanism 11 is actuated by the user.
  • An orifice 18 formed in the piston 17 is provided with a discharge valve 19, for example a valve ball, which opens when the piston is moved down, to put the chamber work 20 of the pump 4 in communication with the chamber 21 of the air bell 5.
  • the cylinder 22 of the pump 4 is provided with several feet, for example four feet 23, which rest on the bottom 1a of the tank 1 and there are fixed by screws 25 which pass through the bottom 1a and are screwed into holes tapped 26 feet 23.
  • the feet 23 are dimensioned to maintain a space 27 between the bottom 1a of the reservoir and the bottom end wall 22a of the cylinder 22, which has a orifice 28 provided with a suction valve 29 which opens when the piston 17 is moved upwards, to admit into the chamber 20 of the liquid contained in the reservoir 1.
  • the spraying apparatus described above operates as follows. After removing the cap 2 from the reservoir 1, the user introduces therein a treatment product, for example a powder product, and a liquid, for example water, in appropriate proportions, then put the cap 2 back in place and install the device on its back using the carrying straps 30. Then, when the user operates the pump 4 using the operating lever 12, the mixture of treatment product and water is sucked through the suction port 28 by the pump 4 which discharges it through the discharge orifice 18 into the air bell 5 in order to compress the air there.
  • a treatment product for example a powder product
  • a liquid for example water
  • the mixture contained in the bell air 5 is expelled by compressed air through a dip tube (not shown) and the flexible hose 6 to the lance 7 from which it escapes through the nozzle 8 in the form of a jet sprayed.
  • an agitator 31 is provided.
  • the agitator 31 is produced in the form of a hydromechanical agitator which, in the embodiment described here, is installed in space 27 coaxially with the suction port 28.
  • the agitator 31 is constituted by an agitator with rotary vanes driven by a turbine.
  • the rotary vane agitator and the turbine can be advantageously formed in one piece 32 which is mounted so as to be able freely rotate on and / or in a hollow cylindrical appendage 33 which defines and / or extends the suction opening 28.
  • the part 32 can for example be produced under the shape of a ring 34, which is provided with turbine blades 35 on its cylindrical surface inner and agitating paddles 36 on its outer peripheral surface.
  • the ring 34 has a hub portion 37 allowing it to be mounted in rotation in the hollow cylindrical appendage 33.
  • the ring 34 has a plurality of flexible tabs 38, which are linked by one of their ends at one end of the ring 34 and which extend parallel to the axis central geometry of said ring, at equal distances from said axis.
  • the flexible tongues 38 carry a latching pin 38a capable of snap behind an annular shoulder 39 formed on the cylindrical appendage 33 ( Figure 3) or in said appendix ( Figure 4).
  • the agitating paddles 36 which are for example two in number and located in diametrically positioned opposite on the ring 34, are formed integrally with two tabs 40 plus as long as the flexible tabs 38 and extending like the latter along Appendix 33, outside of it.
  • the two pallets agitators 36 are formed integrally with the body of the ring 34.
  • the agitating paddles 36 are shaped and / or oriented so as to create a stream of liquid directed towards the bottom of the tank 1.
  • Such a hydromechanical agitator 31 allows agitation until the end of the autonomy of the tank 1, unlike a known agitator with a movable paddle vertically, which no longer produces agitation when the liquid level in the tank is low.
  • the hydromechanical agitator according to the invention allows to have optimal agitation around the suction point of the liquid / product mixture treatment, which prevents any obstruction of the suction system of the pump by heaps of treatment product.
  • the invention is also applicable to a spraying device equipped with a suction pump with electric or thermal motor. This provides a continuous agitation of the liquid. Indeed, as long as the user keeps the pump in operation, the pump sucks in liquid and the flow of sucked liquid can be used to rotate the turbine of the hydromechanical agitator.
  • the invention has been described in connection with an apparatus maintained pressure type sprayer, it also applies to devices sprayers in which the pressurizing device consists of a air pump.
  • the hydromechanical agitator can be activated by the flow of the air discharged by the air pump.
  • the discharge port of the air pump can for example be extended by a dip tube which extends to near the tank bottom and the hydromechanical agitator can be rotatably mounted at the lower end of said dip tube, thereon or on and / or in a piece of support attached to said dip tube, in a manner similar to that shown in Figure 3 or 4.
  • the turbine blades 35 must be oriented to make turn part 32 in the direction of arrow G under the action of the air flow descending through the dip tube, that is to say under the action of a current of fluid having a direction opposite to that of arrow F.
EP01400693A 2000-04-17 2001-03-15 Sprühgerät mit Rührwerk Expired - Lifetime EP1147819B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0004899A FR2807679B1 (fr) 2000-04-17 2000-04-17 Appareil pulverisateur avec agitateur
FR0004899 2000-04-17

Publications (2)

Publication Number Publication Date
EP1147819A1 true EP1147819A1 (de) 2001-10-24
EP1147819B1 EP1147819B1 (de) 2004-07-07

Family

ID=8849311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400693A Expired - Lifetime EP1147819B1 (de) 2000-04-17 2001-03-15 Sprühgerät mit Rührwerk

Country Status (5)

Country Link
EP (1) EP1147819B1 (de)
AT (1) ATE270588T1 (de)
DE (1) DE60104163T2 (de)
ES (1) ES2223746T3 (de)
FR (1) FR2807679B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115968773A (zh) * 2023-02-20 2023-04-18 聊城大学 一种智慧农业用片栽植物授粉装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114100923B (zh) * 2021-10-12 2023-05-26 四川省眉山益稷农业科技有限公司 一种农业秸秆还田用液体腐熟剂变量喷施装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793275A (en) 1954-12-31 1958-04-16 Wilhelm Krautzberger Improvements in and relating to the spraying of paint and the like
FR1516180A (fr) 1967-01-17 1968-03-08 P Berthoud Ets Perfectionnements aux pulvérisateurs à dos

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793275A (en) 1954-12-31 1958-04-16 Wilhelm Krautzberger Improvements in and relating to the spraying of paint and the like
FR1516180A (fr) 1967-01-17 1968-03-08 P Berthoud Ets Perfectionnements aux pulvérisateurs à dos

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115968773A (zh) * 2023-02-20 2023-04-18 聊城大学 一种智慧农业用片栽植物授粉装置
CN115968773B (zh) * 2023-02-20 2024-03-08 聊城大学 一种智慧农业用片栽植物授粉装置

Also Published As

Publication number Publication date
EP1147819B1 (de) 2004-07-07
ATE270588T1 (de) 2004-07-15
FR2807679A1 (fr) 2001-10-19
DE60104163T2 (de) 2005-08-04
ES2223746T3 (es) 2005-03-01
DE60104163D1 (de) 2004-08-12
FR2807679B1 (fr) 2002-11-29

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