Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C7/00—Sowing
  • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
  • A01C7/081—Seeders depositing seeds in rows using pneumatic means
  • A01C7/084—Pneumatic distribution heads for seeders
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C15/00—Fertiliser distributors
  • A01C15/12—Fertiliser distributors with movable parts of the receptacle
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C15/00—Fertiliser distributors
  • A01C15/12—Fertiliser distributors with movable parts of the receptacle
  • A01C15/124—Fertiliser distributors with movable parts of the receptacle with adjustable shutters or slits
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C7/00—Sowing
  • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
  • A01C7/087—Tramlining
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C7/00—Sowing
  • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
  • A01C7/088—Sectional seeding
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01C—PLANTING; SOWING; FERTILISING
  • A01C7/00—Sowing
  • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
  • A01C7/16—Seeders with other distributing devices, e.g. brushes, discs, screws or slides
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
  • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
  • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
  • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
  • F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/10—Means for stopping flow in pipes or hoses
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/10—Means for stopping flow in pipes or hoses
  • F16L55/12—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • F16L55/10—Means for stopping flow in pipes or hoses
  • F16L55/12—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
  • F16L55/128—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose

Definitions

• the invention relates to a flap, specifically to the flap of an agricultural machine for sowing and/or fertilising, and to its arrangement in the guiding of seeds and/or fertiliser to the application site.
• flaps are used to enable the shutting of several seed tube hoses during sowing, thereby ensuring the formation of track rows.
• mechanical flaps with a shut-off cap or slide operated by an electric motor or compressed air are used.
• the disadvantage of these flaps is their mechanical complexity and higher production cost.
• a disadvantage is also the tendency to clog and block the shut-off cap or slide with jammed seed grains or dust. For this reason, conventional flaps must be sufficiently oversized and have electromotive actuation with appropriate force. This further increases the production cost.
• the object of this invention is a flap design that is simple and inexpensive to manufacture while being easily replaceable, while keeping in mind that it will be used on each seed tube channel leading to the application site for seed and/or fertiliser.
• the flap of an agricultural machine for sowing and/or fertilising arranged as part of the housing for guiding the seeds and/or or granulated fertiliser to the application site, which according to the invention is characterised by that it comprises a sealing chamber in whose cavity is arranged a hollow flexible insert which is pressure- deformable by pressure from the cavity to close the flow of the seed and/or granulated fertiliser with a current of compressed air through its cavity, with the sealing chamber being connected to a source of control medium.
• the advantage is that the flexible insert very simply inflates by the pressure medium to the obstructed channel for the flow of seed and/or fertiliser into the seed tube hose and thus closes it. After the pressure has been interrupted, the flexible insert simply returns by means of its shape memory to its original shape and allows free flow of the seed and/or fertiliser without the risk of clogging.
• a great advantage is also a very simple and inexpensive-to-produce design.
• control medium is compressed air.
• compressed air source is part of the propulsion system, while compressed air allows very tight sealing.
• the control medium may, of course, also be a different pressurised gas.
• At least one end of the flexible insert has a cylindrical shape by which it is replace-ably mounted on the front of the sealing chamber. It is to advantage that the end of the flexible liner is easily threaded onto the front of tbe sealing chamber, with its rim encircling the outer surface of the sealing chamber and thereby firmly attaching to it, while at the same time this leads to perfect sealing and avoiding subsequent leakage when the pressurised medium enters iptoThe sealed chamber. It is to further advantage that at the connection of the sealing chamber and the control medium source a control device is provided, while in the most advantageous variant the control means is connected to the agricultural machine drive means or to the control computer unit of the agricultural machine. The advantage is that the passage to the application point can be closed very simply and precisely and particularly the angled ends of the field can be sown very precisely.
• control means is a piezoelectric valve.
• the advantage is that the piezoelectric valve can be simply connected to the machine control system.
• the flexible insert is cylindrical or oval in cross-section.
• a guide housing of seed and/or granulated fertiliser with a jet of compressed air to the application point of the agricultural sowing and/or fertilising machine comprising the aforementioned flap according to the invention characterised by that the flap is mounted interchangeably in a break in the housing channel.
• the flap is mounted on at least one channel break front, most advantageously the flap is mounted on at least one flat channel break front so that the cylindrical end of the flexible insert is in contact with the front.
• the advantage is that by pressing the flap into the channel break a pressure connection is created which keeps the flap gripped between the fronts of the channel breaks.
• the flap is mounted on at least one contoured channel break front so that the cylindrical end of the flexible insert is in contact with the front.
• the flap is secured in the channel break by at least one locking means, which is a buckle or a screw.
• the advantage is that the flap bearing is very strong and stable.
• the channel in which the flap is mounted is the main channel that includes the inlet section of the main channel adjoining the connecting section of the main channel in which the flap is mounted, and the connecting section of the main channel adjoins the outlet section of the main channel, with the inlet section of the main channel being connected to the return channel to discharge the compressed air with seeds and/or fertiliser at the moment the flap is closed, and the seed and/or fertiliser collection container, the return channel being simultaneously connected by the bypass duct to the outlet section of the main channel to remove compressed air the moment the flap is closed.
• the main advantage of the flap and housing according to the invention is a very simple and inexpensive design, which enables trouble-free operation with the possibility of simple flap replacement if necessary.
• To particular advantage is the absence of mechanical moving parts, high sealing force, the elimination of clogging and easy replacement of worn out parts, which is the flexible insert. Thanks to this the flap can be fitted to each seed tube hose and switched by the pressure medium either individually or in groups.
• Fig.1 shows a sectional view of a flap mounted in the fronts of the channel
• Fig. 2 shows a sectional view of a guide housing with a flap which is open
• Fig. 3 shows a sectional view of a guide housing with a flap which is closed
• Fig. 4 shows a sectional view of a guide housing
• Fig. 5 shows a section of guide housing with a flap mounted in the housing of the collecting and distributing container with a flap to which the control medium source is connected
• Fig. 6 is a perspective view of the sowing part of an agricultural machine for sowing and/or fertilising, including the connection of its collecting and distribution container, by means of a guide housing comprising a flap, to the application site.
• the flap 5 (Fig. 1 , Fig. 6) of an agricultural machine for sowing and/or fertilising arranged as part of the housing for conducting the seeds and/or or granulated fertiliser to the application site 6.
• the flap 5 comprises a sealing chamber 1 in whose cavity 3 is arranged a hollow flexible insert 2 which is, by pressure from the cavity 3, pressure- deformable to close the flow of the seed and/or granulated fertiliser with a current of compressed air through its cavity 14.
• the sealing chamber is designed to be of fixed shape.
• the sealing chamber 1 is connected by a hose 21 to a source 7 of control medium, which is compressed air.
• a control device is provided 20, which is connected to the agricultural machine drive means or to the control computer unit of the agricultural machine.
• the control means 20 is a piezoelectric valve.
• Both ends 23 of the flexible insert 2 have a cylindrical shape by which they are replace-ably mounted on the front 8 of the sealing chamber 1
• the guide housing 4 (Fig. 1) of seeds and/or or granulated fertiliser to the application site 6 of the agricultural machine for sowing and/or fertilisation comprises a flap 5 which is interchangeably mounted in the break 10 of the channel 22 of the housing 4.
• the flap 5 is mounted on both flat fronts 9 of the break 0 of the channel 22 so that in contact with the fronts 9 are the cylindrical ends 23 of the flexible insert 2.
• the fronts 9 are designed to accurately receive the flap 5, more specifically to receive the outer surfaces 24 of the flexible insert 2.
• the front 9 of the break 10 of the channel 22 is in the form of a flat rim. Alternately, the front 9 of the break 10 of the channel 22 may be in the form of a sleeve.
• the flexible insert 2 is cylindrical in cross-section or can alternately be oval.
• the flap 5 is secured in the break 0 of the channel 22 by a securing means 18, which is a buckle.
• the device operates such that the moment the flap 5 is open, the seed and/or fertiliser exiting the distributor 27 passes through the inlet section 11_ of the main channel 17, the connecting section 12 of the main channel 17, including the flap 5 arranged therein, and through the outlet part 13 of the main channel 17, into the hose 28 of the seed tube.
• the flap 5 (Fig. 2, Fig. 3, Fig. 4, Fig. 6) of an agricultural machine for sowing and/or fertilising arranged as part of the housing for concreting the seeds and/or or granulated fertiliser to the application site 6.
• the sealing chamber 1 is designed to be of fixed shape.
• the sealing chamber 1 (Fig. 4) is connected by a hose 21 to the source 7 of the control medium, which is compressed air.
• the control means 20 is connected to the sealing chamber 1 and the control medium source 7, which is connected to the agricultural machine drive means or to the agricultural machine computerised control unit.
• the control means 20 is a piezoelectric valve.
• Both ends 23 of the flexible insert 2 have a cylindrical shape by which they are replace-ably mounted on the front 8 of the sealing chamber 1_.
• the flexible insert 2 is cylindrical in cross-section or can alternately be of an oval design.
• the guide housing 4 (Fig. 4, Fig. 5, Fig. 6) of seeds and/or granulated fertiliser by compressed air flow to the application site 6 of the agricultural sowing and/or fertilising machine comprises a flap 5 which is mounted in the break 10 of the channel 22 housing 4 so as to be replaceable.
• the flap 5 is mounted on both fronts 9 of the break 0 of the channel 22.
• the flap 5 is mounted on both shaped fronts 9 of the break 10 of the channel 22 so that in contact with the fronts 9 are the cylindrical ends 23 of the flexible insert 2.
• the fronts 9 are shaped to accurately receive the flap 5, more specifically to receive the outer surfaces 24 of the flexible insert 2.
• the front 9 of the break 10 of the channel 22 are designed in such a way that they are provided, on their surface where they are in contact with the outer surfaces 24 of the flexible insert 2 with shaped projections 26.
• the front 9 of the break 10 of the channel 22 is in the form of a flange.
• the front 9 of the break 10 of the channel 22 may be in the form of a sleeve.
• the flap 5 is secured in the break 10 of the channel 22 by a securing means 1_8, which is an adjustable buckle.
• the channel 22 (Fig. 2, Fig. 3, Fig. 4) is the main channel 17 comprising an inlet section H of the main channel 17, followed by the connecting section 12 of the main channel 17, in which the flap 5 is arranged, and on the connecting section 12 of the main channel 17 follows the outlet section 13 of the main channel T7, witfTthe inlet section H of the main channel 17 being connected to the return channeFT3 ⁇ 4.
• the seeds and/or fertiliser the momepTthe flap 5 is closed to the collection container 19 for seeds and/or fertiliser whece-rhe return channel 15 is simultaneously connected by the bypass duct 16 to tje-outlet section 13 of the main channel 17 to take away the compressed air the moment the flap 5 is closed.
• the return channel 15 is connected to the bypass channel 6 at an angle greater than 90 degrees.
• the guide housings 4 (Fig. 5) with the flaps 5 are located on a circular distributor 27 in which the seed and/or fertiliser supplied by the central conduit from the metering device is distributed evenly into these flaps 5, to which the seed tube hoses 28 are connected.
• the device operates such that the moment the flap 5 is open, the seed and/or fertiliser exiting the distributor 27 passes through the inlet section U of the main channel 17, the connecting section 12 of the main channel 17, including the flap 5 arranged therein, and through the outlet section 13 of the main channel 17, into the hoses 28 of the seed tube.
• the seed and/or fertiliser emerging from the distributor 27 enters the inlet section H of the main channel 17 in which it turns off into the return channel 5 from which the seed and/or fertiliser flows into the collecting container 19 of the distributor 27, with most of the compressed air being discharged through the bypass channel 16 to the outlet section 13 of the main channel 17, and from this into the hose 28 of the seed tube.
• connection of the bypass channel 16 to the return channel 15 ensures separation of the stream of seed and/or fertiliser from the compressed air, so that into the hose 28 of the seed tube only the compressed air from the pneumatic sowing device escapes, thereby ensuring full functionality even when some of the flaps 5 are closed.
• the flap and housing unit according to the invention can be used on an agricultural machine for precise seed sowing and/or precise fertiliser application.

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• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Soil Sciences (AREA)
• Mechanical Engineering (AREA)
• Environmental Sciences (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Sowing (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=70613539

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (6)

• 2019
  • 2019-05-07 CZ CZ2019-282A patent/CZ2019282A3/cs unknown
• 2020
  • 2020-04-29 EP EP20724404.7A patent/EP3965547A1/en active Pending
  • 2020-04-29 WO PCT/CZ2020/000015 patent/WO2020224684A1/en not_active Ceased

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