Agricultural planting is with sprinkler that has pesticide preparation function

文档序号:1205906 发布日期:2020-09-04 浏览:10次 中文

阅读说明:本技术 一种农业种植用具有农药配制功能的喷洒装置 (Agricultural planting is with sprinkler that has pesticide preparation function ) 是由 张伟 张世全 王克龙 袁丽丽 张辉 于 2020-06-03 设计创作,主要内容包括:本发明公开了一种农业种植用具有农药配制功能的喷洒装置,包括药箱底板,药箱底板的顶部固定安装有配制药箱,配制药箱的顶部的左侧固定安装有药液箱,药液箱的顶部的中间位置处设置有注药盖,配制药箱的顶部的中间位置处固定安装有保护罩,保护罩的内腔顶部的右侧固定安装有电机,电机的底部输出端安装有延伸到配制药箱内腔的第二竖向配制机构,保护罩的内腔顶部的左侧通过轴承转动连接有延伸到配制药箱内腔的第一竖向配制机构。该农业种植用具有农药配制功能的喷洒装置通过水位传感器检测水位高低并经PLC控制器控制电磁阀定时启动相应时长进而控制滴入量从而替换人工配制药液,避免用药量过少效果不佳用药量过大农作物死亡的情况发生。(The invention discloses a spraying device with a pesticide preparation function for agricultural planting, which comprises a pesticide box bottom plate, wherein a preparation pesticide box is fixedly installed at the top of the pesticide box bottom plate, a pesticide liquid box is fixedly installed on the left side of the top of the preparation pesticide box, a pesticide injection cover is arranged in the middle of the top of the pesticide liquid box, a protective cover is fixedly installed in the middle of the top of the preparation pesticide box, a motor is fixedly installed on the right side of the top of an inner cavity of the protective cover, a second vertical preparation mechanism extending to the inner cavity of the preparation pesticide box is installed at the bottom output end of the motor, and a first vertical preparation mechanism extending to the inner cavity of the preparation pesticide box is rotatably connected to the left side of. This sprinkler with pesticide preparation function for farming detects the water level height through level sensor and controls through PLC controller control solenoid valve regularly start corresponding time and then control the volume of instiling into and replace artifical preparation liquid medicine, avoids the too little dead condition of crops of the poor dose of effect of dose to take place.)

1. The utility model provides a farming is with sprinkler that has pesticide distribution function, includes medical kit bottom plate (7), its characterized in that: the top fixed mounting of medicine chest bottom plate (7) has a preparation medicine chest (6), the left side fixed mounting at the top of preparation medicine chest (6) has a liquid medicine chest (17), the intermediate position department at the top of liquid medicine chest (17) is provided with annotates medicine lid (18), the intermediate position department fixed mounting at the top of preparation medicine chest (6) has a safety cover (15), the right side fixed mounting at the inner chamber top of safety cover (15) has motor (12), the bottom output of motor (12) is installed and is extended to the vertical preparation mechanism (8) of second of preparing medicine chest (6) inner chamber, the left side at the inner chamber top of safety cover (15) is connected with through the bearing rotation and is extended to the first vertical preparation mechanism (4) of preparation medicine chest (6) inner chamber, the equal fixed mounting of outside lower extreme of first vertical preparation mechanism (4) and the vertical preparation mechanism (8) of second has stirring piece (9), and the stirring piece (9) is arranged in the inner cavity of the preparation medicine box (6), and the right side of the top of the preparation medicine box (6) is provided with a water injection cover (10).

2. The spraying device with pesticide preparation function for agricultural planting according to claim 1, characterized in that: the bottom fixedly connected with scavenge pipe (5) of the left side lateral wall of preparing medical kit (6), the bottom fixedly connected with liquid medicine recovery tube (19) of the back lateral wall of liquid medicine case (17), the outside of scavenge pipe (5) and liquid medicine recovery tube (19) all is provided with the ooff valve.

3. The spraying device with pesticide preparation function for agricultural planting according to claim 1, characterized in that: intermediate position department fixed mounting at the inner chamber top of preparing medical kit (6) has level sensor (14), the upper end fixed mounting of the left side lateral wall of preparing medical kit (6) has PLC controller (3), electric connection between level sensor (14) and PLC controller (3), interior chamber bottom of medical solution case (17) is installed and is extended to instil-in pipe (1) of preparing medical kit (6) inner chamber, the lower extreme of the outside of instil-in pipe (1) is provided with solenoid valve (2), and solenoid valve (2) set up in the inner chamber of preparing medical kit (6), electric connection between PLC controller (3) and solenoid valve (2) and motor (12).

4. The spraying device with pesticide preparation function for agricultural planting according to claim 1, characterized in that: first vertical preparation mechanism (4) include first swivel nut (401) and first screw rod (402), first screw rod (402) are rotated with safety cover (15) through the bearing and are connected, the lower pot head of the outside of first screw rod (402) is equipped with first swivel nut (401) fixed mutually with stirring piece (9), the last pot head of the outside of first screw rod (402) is equipped with driven runner (16), and driven runner (16) set up the inner chamber in safety cover (15).

5. The spraying device with pesticide preparation function for agricultural planting according to claim 1, characterized in that: the vertical preparation mechanism (8) of second includes second screw rod (801) and second swivel nut (802), second screw rod (801) fixed mounting is at the bottom output of motor (12), the pot head of the outside of second screw rod (801) is equipped with second swivel nut (802) fixed mutually with stirring piece (9), the pot head of the outside of second screw rod (801) is equipped with initiative runner (11), and initiative runner (11) sets up the inner chamber in guard shield (15), the cover is equipped with connecting band (13) between initiative runner (11) and driven runner (16).

6. The spraying device with pesticide preparation function for agricultural planting according to claim 1, characterized in that: the left side fixed mounting at the top of medical kit bottom plate (7) has electric telescopic handle (20), the intermediate position department fixed mounting at the top of medical kit bottom plate (7) has parallel smooth frame (28), and parallel smooth frame (28) and electric telescopic handle (20) all set up in the place ahead of preparing medical kit (6), the inner chamber top of parallel smooth frame (28) is provided with parallel slide (29), the top fixed mounting of parallel slide (29) has the flat layer board of second (26), the right side output of electric telescopic handle (20) is fixed with the left side lateral wall of the flat layer board of second (26).

7. The spraying device with pesticide preparation function for agricultural planting according to claim 6, characterized in that: the air cylinder (27) is fixedly mounted in the middle of the left side of the top of the second flat supporting plate (26), the top of the air cylinder (27) is rotatably connected with the first flat supporting plate (22) through a hinge shaft, supporting cylinders (30) are fixedly mounted on the front side and the rear side of the top of the second flat supporting plate (26), and the top of each supporting cylinder (30) is rotatably connected with the bottom of the first flat supporting plate (22) through the hinge shaft.

8. The spraying device with pesticide preparation function for agricultural planting according to claim 7, characterized in that: the utility model discloses a medical kit, including the first supporting plate, the intermediate position department fixed mounting at the top of first supporting plate (22) has miniature pump (23), electric telescopic handle (20), miniature pump (23) and cylinder (27) all with PLC controller (3) between electric connection, all with traction vehicle on-board power supply electric connection in miniature pump (23), cylinder (27), electric telescopic handle (20), motor (12), level sensor (14), PLC controller (3) and solenoid valve (2), the left side input end fixedly connected with of miniature pump (23) extends to liquid medicine hose (21) of preparation medical kit (6) inner chamber, the right side output end fixedly connected with liquid medicine hard tube (24) of miniature pump (23), the right-hand member fixed mounting of liquid medicine hard tube (24) has liquid medicine atomising head (25).

Technical Field

The invention relates to the technical field of agricultural planting equipment, in particular to a spraying device with a pesticide preparation function for agricultural planting.

Background

China is one of the traditional agricultural kingdoms, and agro-farming civilization is also a symbol of Chinese nation, and in order to better grow crops, the agricultural planting process needs to be carried out by applying pesticides at a proper time without being invaded by pests to remove insects and weeds, and the like, the traditional spraying device for agricultural planting can basically meet the use requirements of people, but still has certain problems, and the specific problems are as follows:

1. most of agricultural planting spraying devices in the market at present need people to automatically prepare pesticides, but the pesticide dosage can not be accurately mastered due to different water amounts, so that the pesticide effect can not reach an ideal state, and even crops can die due to too large pesticide dosage;

2. most of sprinkler for farming are not convenient for adjust spraying the radius on the market at present, lead to most of sprinkler for farming on the market to have to reduce to spray the radius in order to satisfy the requirement in operation space, spray the radius undersize and can lead to the operation personnel to inhale the pesticide liquid and drip and then be unfavorable for its healthy.

Disclosure of Invention

The invention aims to provide a spraying device with a pesticide preparation function for agricultural planting, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a spraying device with a pesticide preparation function for agricultural planting comprises a pesticide box bottom plate, wherein a preparation pesticide box is fixedly arranged at the top of the pesticide box bottom plate, a pesticide liquid box is fixedly arranged at the left side of the top of the preparation pesticide box, a pesticide injection cover is arranged at the middle position of the top of the pesticide liquid box, a protective cover is fixedly arranged at the middle position of the top of the preparation pesticide box, a motor is fixedly arranged at the right side of the top of an inner cavity of the protective cover, a second vertical preparation mechanism extending to an inner cavity of the preparation pesticide box is installed at the bottom output end of the motor, a first vertical preparation mechanism extending to the inner cavity of the preparation pesticide box is rotatably connected to the left side of the top of the inner cavity of the protective cover through a bearing, stirring pieces are fixedly arranged at the outer lower ends of the first vertical preparation mechanism and the second vertical preparation mechanism and are arranged in the, and a water injection cover is arranged on the right side of the top of the preparation medicine box.

Preferably, in the spraying device with a pesticide preparation function for agricultural planting, a cleaning pipe is fixedly connected to the bottom of the left side wall of the preparation pesticide box, a pesticide liquid recovery pipe is fixedly connected to the bottom of the back side wall of the pesticide liquid box, and switch valves are arranged outside the cleaning pipe and the pesticide liquid recovery pipe.

Based on the technical characteristics, the spraying device with the pesticide preparation function for agricultural planting is convenient to clean and recycle the unused pesticide.

Preferably, among the above-mentioned sprinkler with pesticide preparation function for farming, the intermediate position department fixed mounting at the inner chamber top of preparing the medical kit has level sensor, the upper end fixed mounting who prepares the left side lateral wall of medical kit has the PLC controller, electric connection between level sensor and the PLC controller, the interior chamber bottom of medical solution case is installed and is extended to the instil-in pipe of preparing the medical kit inner chamber, the outside lower extreme that instil-in pipe is provided with the solenoid valve, and the solenoid valve setting is in the inner chamber of preparing the medical kit, electric connection between PLC controller and solenoid valve and the motor.

Based on the technical characteristics, the dosage can be automatically configured according to different water quantities.

Preferably, among the above-mentioned sprinkler with pesticide preparation function for farming, first vertical preparation mechanism includes first swivel nut and first screw rod, first screw rod passes through the bearing and is connected with the safety cover rotation, the lower pot head of the outside of first screw rod is equipped with the first swivel nut of fixing mutually with stirring the piece, the last pot head of the outside of first screw rod is equipped with driven runner, and driven runner sets up the inner chamber at the safety cover.

Based on the technical characteristics, the liquid medicine is convenient to be uniformly stirred, and the liquid medicine is prevented from being uniformly mixed.

Preferably, among the above-mentioned sprinkler with pesticide preparation function for farming, the vertical preparation mechanism of second includes second screw rod and second swivel nut, second screw rod fixed mounting is at the bottom output of motor, the lower pot head of the outside of second screw rod is equipped with the second swivel nut of fixing mutually with stirring the piece, the pot head of the outside of second screw rod is equipped with the initiative runner, and the initiative runner setting is at the inner chamber of guard shield, the cover is equipped with the connecting band between initiative runner and the driven runner.

Based on the technical characteristics, the liquid medicine is convenient to be uniformly stirred, and the liquid medicine is prevented from being uniformly mixed.

Preferably, among the above-mentioned sprinkler with pesticide preparation function for farming, the left side fixed mounting at the top of medical kit bottom plate has electric telescopic handle, the intermediate position department fixed mounting at the top of medical kit bottom plate has parallel smooth frame, and parallel smooth frame and electric telescopic handle all set up in the place ahead of preparing the medical kit, the inner chamber top of parallel smooth frame is provided with parallel slide, parallel slide's top fixed mounting has the flat layer board of second, electric telescopic handle's right side output is fixed mutually with the left side lateral wall of the flat layer board of second.

Based on the technical characteristics, the effective spraying radius of the spraying device with the pesticide preparation function for agricultural planting can be conveniently controlled.

Preferably, in the spraying device with the pesticide preparation function for agricultural planting, an air cylinder is fixedly installed in the middle of the left side of the top of the second flat supporting plate, the top of the air cylinder is rotatably connected with the first flat supporting plate through a hinge shaft, supporting cylinders are fixedly installed on the front side and the rear side of the top of the second flat supporting plate, and the top of each supporting cylinder is rotatably connected with the bottom of the first flat supporting plate through a hinge shaft.

Based on the technical characteristics, the spraying angle range of the spraying device with the pesticide preparation function for agricultural planting is convenient to control.

Preferably, among the above-mentioned sprinkler with pesticide distribution function for farming, the intermediate position department fixed mounting at the top of first flat bed board has miniature pump, electric connection between electric telescopic handle, miniature pump and the cylinder all and the PLC controller, miniature pump, cylinder, electric telescopic handle, motor, level sensor, PLC controller and solenoid valve all with haulage vehicle on-board power electric connection, miniature pump's left side input end fixedly connected with extends to the liquid medicine hose of preparing the medical kit inner chamber, miniature pump's right side output end fixedly connected with liquid medicine hard tube, the right-hand member fixed mounting of liquid medicine hard tube has the liquid medicine atomising head.

Based on the technical characteristics, the spraying device with the pesticide preparation function is convenient to spray by utilizing the agricultural planting.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the water level is detected by a water level sensor and is processed by a PLC controller, then an electromagnetic valve is controlled to start corresponding time length at regular time, so that a proper amount of liquid medicine in the inner cavity of a liquid medicine box is dripped into a prepared liquid medicine box through an dripping pipe, the clear water volume in the inner cavity of the prepared liquid medicine box is calculated by utilizing the difference of the water level, the dripping time length of the liquid medicine is controlled by timing, and the dripping amount is controlled so as to replace the artificially prepared liquid medicine, the accuracy of the dosage is improved, and the phenomenon that crops die due to too small dosage and poor effect is avoided;

and secondly, the second flat supporting plate is driven by the electric telescopic rod to slide towards the right side, and the prepared liquid medicine is sprayed out through the liquid medicine spraying head under the action of the micro water pump through the liquid medicine hose and the liquid medicine hard tube, so that the spraying angle and radius can be conveniently controlled.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic diagram of the right-view structure of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 2 according to the present invention.

In the figure: 1. a dropping pipe; 2. an electromagnetic valve; 3. a PLC controller; 4. a first vertical dispensing mechanism; 401. a first threaded sleeve; 402. a first screw; 5. cleaning the tube; 6. preparing a medicine chest; 7. a medicine chest floor; 8. a second vertical dispensing mechanism; 801. a second screw; 802. a second thread insert; 9. a stirring sheet; 10. a water injection cover; 11. a driving runner; 12. a motor; 13. a connecting belt; 14. a water level sensor; 15. a protective cover; 16. a driven runner; 17. a liquid medicine box; 18. a medicine injection cover; 19. a liquid medicine recovery pipe; 20. an electric telescopic rod; 21. a liquid medicine hose; 22. a first flat pallet; 23. a micro water pump; 24. a liquid medicine hard tube; 25. a liquid medicine spray head; 26. a second flat pallet; 27. a cylinder; 28. a parallel sliding frame; 29. a parallel slide plate; 30. and supporting the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a spraying device with pesticide preparation function for agricultural planting comprises a pesticide box bottom plate 7, a preparation pesticide box 6 is fixedly installed at the top of the pesticide box bottom plate 7, a cleaning pipe 5 is fixedly connected to the bottom of the left side wall of the preparation pesticide box 6, a pesticide liquid recovery pipe 19 is fixedly connected to the bottom of the back side wall of a pesticide liquid box 17, switch valves are arranged outside the cleaning pipe 5 and the pesticide liquid recovery pipe 19, a water level sensor 14 is fixedly installed at the middle position of the top of an inner cavity of the preparation pesticide box 6, the type of the water level sensor 14 can be JYB-714B-220V, a PLC 3 is fixedly installed at the upper end of the left side wall of the preparation pesticide box 6, the type of the PLC 3 can be s7-200, the water level sensor 14 is electrically connected with the PLC 3, a dropping pipe 1 extending to the inner cavity of the preparation pesticide box 6 is installed at the bottom of the inner cavity of the pesticide, the electromagnetic valve 2 is arranged at the lower end of the outer part of the dropping pipe 1, the type of the electromagnetic valve 2 can be 2W-250-25, the electromagnetic valve 2 is arranged in the inner cavity of the preparation medicine box 6, the PLC 3 is electrically connected with the electromagnetic valve 2 and the motor 12, the electric telescopic rod 20 is fixedly arranged at the left side of the top of the medicine box bottom plate 7, the type of the electric telescopic rod 20 can be TF12-100, the parallel sliding frame 28 is fixedly arranged at the middle position of the top of the medicine box bottom plate 7, the parallel sliding frame 28 and the electric telescopic rod 20 are both arranged in front of the preparation medicine box 6, the parallel sliding plate 29 is arranged at the top of the inner cavity of the parallel sliding frame 28, the second flat supporting plate 26 is fixedly arranged at the top of the parallel sliding plate 29, the right output end of the electric telescopic rod 20 is fixed with the left side wall of the second flat supporting plate 26, the cylinder, the model of the air cylinder 27 can be SC200-25, the top of the air cylinder 27 is rotatably connected with a first flat supporting plate 22 through a hinge shaft, the front side and the rear side of the top of a second flat supporting plate 26 are fixedly provided with supporting cylinders 30, the top of the supporting cylinders 30 is rotatably connected with the bottom of the first flat supporting plate 22 through the hinge shaft, the middle position of the top of the first flat supporting plate 22 is fixedly provided with a micro water pump 23, the model of the micro water pump 23 can be HW-205, an electric telescopic rod 20, the micro water pump 23 and the air cylinder 27 are electrically connected with a PLC (programmable logic controller) 3, the micro water pump 23, the air cylinder 27, the electric telescopic rod 20, the motor 12, the water level sensor 14, the PLC 3 and the electromagnetic valve 2 are electrically connected with an internal power supply of a towing vehicle, the left input end of the micro water pump 23 is fixedly connected with a liquid medicine hose 21 extending to the inner cavity of, a liquid medicine spraying head 25 is fixedly installed at the right end of the liquid medicine hard tube 24, a liquid medicine box 17 is fixedly installed at the left side of the top of the prepared liquid medicine box 6, a medicine injection cover 18 is arranged at the middle position of the top of the liquid medicine box 17, a protective cover 15 is fixedly installed at the middle position of the top of the prepared liquid medicine box 6, a motor 12 is fixedly installed at the right side of the top of an inner cavity of the protective cover 15, the type of the motor 12 can be Y112M-6, a second vertical preparing mechanism 8 extending to the inner cavity of the prepared liquid medicine box 6 is installed at the bottom output end of the motor 12, the second vertical preparing mechanism 8 comprises a second screw rod 801 and a second screw sleeve 802, the second screw rod 801 is fixedly installed at the bottom output end of the motor 12, a second screw sleeve 802 fixed with a stirring sheet 9 is sleeved at the lower end of the outer part of the second screw rod 801, a driving runner 11 is sleeved at the upper end of, the connecting belt 13 is sleeved between the driving rotating wheel 11 and the driven rotating wheel 16, the left side of the top of the inner cavity of the protective cover 15 is rotatably connected with a first vertical preparation mechanism 4 extending to the inner cavity of the preparation medicine box 6 through a bearing, the first vertical preparation mechanism 4 comprises a first screw sleeve 401 and a first screw rod 402, the first screw rod 402 is rotatably connected with the protective cover 15 through a bearing, the lower end of the outside of the first screw rod 402 is sleeved with the first screw sleeve 401 fixed with the stirring piece 9, the upper end of the outside of the first screw rod 402 is sleeved with the driven rotating wheel 16, the driven rotating wheel 16 is arranged in the inner cavity of the protective cover 15, the stirring pieces 9 are fixedly arranged at the lower ends of the outside of the first vertical preparation mechanism 4 and the second vertical preparation mechanism 8, the stirring pieces 9 are arranged in the inner cavity of the preparation medicine box 6, and the water injection cover 10 is arranged on.

The working principle is as follows: when the spraying device with the pesticide preparation function for agricultural planting is used, the spraying device with the pesticide preparation function for agricultural planting is placed in a traction vehicle, proper clear water and liquid medicine are respectively injected into the inner cavities of the preparation medicine box 6 and the liquid medicine box 17 through the water injection cover 10 and the pesticide injection cover 18, the PLC 3 is used for starting the water level sensor 14 to detect the water level and returning signals to the PLC 3, the signals are processed by the internal data processing unit of the PLC 3, the electromagnetic valve 2 is controlled to start for corresponding time at regular time, and then the proper amount of liquid medicine in the inner cavity of the liquid medicine box 17 is dripped into the preparation medicine box 6 through the dripping pipe 1, so that the clear water volume in the inner cavity of the preparation medicine box 6 is calculated by utilizing the difference of the water level, the liquid medicine dripping time is controlled by timing, the dripping amount is controlled, the artificially prepared liquid medicine is replaced, the accuracy of the dosage is improved, and the phenomenon that crops with too, when the pesticide is dripped into the inner cavity of the preparation pesticide box 6, the PLC 3 controls the starting motor 12 to drive the second screw 801 to rotate, the second screw 801 drives the second screw sleeve 802 to move up and down while rotating and drives the driving rotating wheel 11 to rotate, the driving rotating wheel 11 drives the driven rotating wheel 16 to rotate through the connecting belt 13 and drives the first screw 402 to rotate, the first screw 402 drives the first screw sleeve 401 to rotate while rotating and drives the first screw sleeve 401 to rotate together with the second screw sleeve 802 to drive the stirring sheet 9 to rotate so as to fully stir the pesticide, the problem that the pesticide effect is unstable due to uneven mixing of the pesticide is avoided, when the pesticide needs to be recovered, the switch valve is opened to recover the pesticide through the pesticide recovery pipe 19, when the spraying device with the pesticide preparation function for agricultural planting needs to be cleaned, clear water is injected into the inner cavity of the preparation pesticide box 6 through the water injection cover 10 and is discharged through the cleaning pipe 5 and is repeated for many times, therefore, the spraying device with the pesticide preparation function for agricultural planting is convenient to clean, when liquid medicine is sprayed, the PLC 3 is used for starting the electric telescopic rod 20, the air cylinder 27 and the micro water pump 23, the second flat supporting plate 26 is driven to slide towards the right side in the inner cavity of the parallel sliding frame 28 through the parallel sliding plate 29 under the action of the electric telescopic rod 20, the second flat supporting plate is stretched under the action of the air cylinder 27 and then drives the first flat supporting plate 22 to rotate under the coordination of the supporting column body 30 through the hinged shaft so as to drive the micro water pump 23 to incline, and the prepared liquid medicine is sprayed out through the liquid medicine spraying head 25 through the liquid medicine hose 21 and the liquid medicine hard pipe 24 under the action of the micro water pump 23, so that the spraying angle and the spraying radius can be conveniently controlled.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

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