阅读说明：本技术 一种平移式喷灌机 (Translation formula sprinkling irrigation machine ) 是由 包攀 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种平移式喷灌机,包括横移机构、稳定提升机构、横向伸展输水机构、田垄径向调节机构和增压排水机构,所述横移机构用于装置整体的横移,所述稳定提升机构安装在所述横移机构上,且所述稳定提升机构用于稳定装置五处管件的稳定,所述横向伸展输水机构包括延伸管组合,所述延伸管组合包括可向外伸展或向内收缩的主管。通过设置可适配波浪状田垄进行使用的防护外壳,且在防护外壳的内腔中安装气囊,利用气囊顶部的开口固定连接在防护外壳中部球形舱体的内侧,当水从纵向导水管输送至气囊内部后,受到水压对气囊的挤压,此时气囊会在防护外壳内腔发生膨胀,膨胀后的气囊会对水产生较大的压强,当从喷头排出时会形成雾化水对田垄进行喷灌,从而能够极大的减少广角喷灌对田垄之间沟壑的浸湿。(The invention discloses a translation type sprinkler which comprises a traversing mechanism, a stable lifting mechanism, a transverse extension water delivery mechanism, a ridge radial adjusting mechanism and a pressurizing drainage mechanism, wherein the traversing mechanism is used for traversing the whole device, the stable lifting mechanism is arranged on the traversing mechanism and is used for stabilizing five pipe fittings of the stabilizing device, the transverse extension water delivery mechanism comprises an extension pipe combination, and the extension pipe combination comprises a main pipe which can extend outwards or contract inwards. But carry out the protecting sheathing who uses through setting up the wavy ridge of adaptation, and install the gasbag in the inner chamber of protecting sheathing, utilize the inboard of the opening fixed connection at the spherical cabin body in protecting sheathing middle part at the gasbag top, carry to the inside back of gasbag when water from vertical aqueduct, receive the extrusion of water pressure to the gasbag, the gasbag can take place the inflation in the protecting sheathing inner chamber this moment, gasbag after the inflation can produce great pressure to water, can form the atomizing water and spray to the ridge when discharging from the shower nozzle, thereby can very big reduction wide angle spray to soak of gully between the ridge.)

1. A translation sprinkling machine, comprising:

a traverse mechanism (100), wherein the traverse mechanism (100) is used for traversing the whole device;

the stable lifting mechanism (200), the stable lifting mechanism (200) is installed on the transverse moving mechanism (100), and the stable lifting mechanism (200) is used for stabilizing five pipe fittings of the stabilizing device;

a laterally extending water delivery mechanism (300) including an extension tube assembly (310);

the extension pipe combination (310) comprises a main pipe (311) capable of extending outwards or contracting inwards, a first outer connecting pipe (312), a central pipe (313), a second outer connecting pipe (314) and branch pipes (315);

the ridge radial adjusting mechanism (400) comprises a spiral part (430) capable of slightly transversely moving along the horizontal direction and an elastic part (420) connected to the outer end of the spiral part (430);

the pressurized drainage mechanism (500) comprises a protective shell (520) for water delivery, an air bag (540) connected to the inner cavity of the protective shell (520), and a gear (530) arranged outside the protective shell (520).

2. The translational sprinkler of claim 1, wherein the traversing mechanism (100) comprises a water tank (110) for directing a water source and a base (120) mounted at the bottom of the water tank (110) for movement.

3. The translational sprinkler of claim 1, wherein the stable lifting mechanism (200) comprises a bearing vertical pile (210) installed at the top center of the water tank (110), a tightness adjusting screw (220) movably connected inside the bearing vertical pile (210), an inner winding shaft (230) installed on the tightness adjusting screw (220), and a pulling rope (240) wound in a groove inside the inner winding shaft (230).

4. The translational sprinkler of claim 1, wherein the laterally extending water delivery mechanism (300) further comprises five water silos (320), and the number of water silos (320) is five.

5. The translational sprinkler of claim 4, wherein the water sump (320) is mounted between the main pipe (311), the first extension pipe (312), the center pipe (313), the second extension pipe (314) and the branch pipe (315) in the extension pipe assembly (310) for water transportation.

6. The translational sprinkler of claim 1, wherein the ridge radial adjustment mechanism (400) further comprises a shaft (410), a stop collar (440) mounted outside the shaft (410), a bracket (460) movably sleeved on the shaft (410), and a collar (450) mounted outside the bracket (460).

7. The translational sprinkler of claim 1, wherein the pressurized drainage mechanism (500) further comprises a longitudinal water conduit (510) installed in the water sump (320), a sleeve is installed at the top end of the longitudinal water conduit (510), and a spiral end is installed at the bottom end of the longitudinal water conduit (510).

8. The translational sprinkler of claim 1, wherein a spray head (550) is attached to the bottom of the bladder (540).

9. A translational sprinkler according to claim 1, characterised in that the screw (430) is engaged with the gear (530) and the screw (430) is horizontally traversable along the shaft (410).

10. The translational sprinkler of claim 1, wherein the bottom of the protective housing (520) defines a semi-arc notch.

Technical Field

The invention relates to the field of agriculture, in particular to a translation type sprinkling machine.

Background

The translational sprinkler is a sprinkler, similar in appearance to the central pivot sprinkler, which can travel and spray while in use, and the commonly adopted method is to take water from an open channel and supply water through a dragged hose.

Common translation formula sprinkling irrigation machine is mostly applied to the field piece after the integration on the market, and the mode of wide angle spraying is not applicable to some ridges formula vegetables planting's convenient to use, when planting the potato, need machinery to swell soil, then place the potato inside the ridge, adopt the wide angle sprinkling irrigation very easily can lead to the gully between two adjacent ridges to appear the water of siltation, this can produce very big influence to operations such as mechanical tectorial membrane, the machinery wheel is gone in the gully, moist soil can the adhesion on the tire, and also can produce very big influence to the manual work operation of leaving the field.

According to the above, effective sprinkling irrigation for the integrated ridge-shaped vegetables is a technical difficulty to be solved by the inventor.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows:

a translational sprinkler, which comprises a transverse moving mechanism, a stable lifting mechanism, a transverse extending water conveying mechanism, a ridge radial adjusting mechanism and a pressurizing drainage mechanism, the transverse moving mechanism is used for the integral transverse moving of the device, the stable lifting mechanism is arranged on the transverse moving mechanism, and the stabilizing and lifting mechanism is used for stabilizing five pipe fittings of the stabilizing device, the transverse stretching water delivery mechanism comprises an extension pipe combination, the extension pipe combination comprises a main pipe, a first outer connecting pipe, a central pipe, a second outer connecting pipe and branch pipes, wherein the main pipe, the first outer connecting pipe, the central pipe, the second outer connecting pipe and the branch pipes can extend outwards or contract inwards, the ridge radial adjusting mechanism comprises a spiral part capable of slightly transversely moving along the horizontal direction and an elastic part connected with the outer end of the spiral part, the pressurizing and draining mechanism comprises a protective shell for water delivery, an air bag connected to the inner cavity of the protective shell and a gear installed outside the protective shell.

Through adopting above-mentioned technical scheme, when using, operating personnel need adjust five outside fixation nut in sump according to the interval between the field ridge in the different acreages, then the control is responsible for, first external pipe, center tube, the outside extension of second external pipe and branch pipe, and is fixed after up to above-mentioned five pipe fittings to the field ridge adaptation, then rotates and adjusts the axostylus axostyle according to the crookedness on field ridge to this control gear and the holistic deflection of pressure boost drainage mechanism.

The present invention in a preferred example may be further configured to: the transverse moving mechanism comprises a water tank for guiding a water source and a base which is arranged at the bottom of the water tank and used for moving.

Through adopting above-mentioned technical scheme, set up the water tank to the top central point of water tank puts the stable hoist mechanism of fixed mounting, can make the device's focus balanced.

The present invention in a preferred example may be further configured to: the stable lifting mechanism comprises a bearing vertical pile arranged at the center of the top of the water tank, a tightness adjusting screw movably connected inside the bearing vertical pile, a winding inner shaft arranged on the tightness adjusting screw and a guy cable wound in a groove on the inner side of the winding inner shaft.

By adopting the technical scheme, the plurality of tightness adjusting screws are movably arranged in the bearing vertical pile, the two ends of each tightness adjusting screw are spirally connected with the nuts, the control nuts are utilized to realize the winding of the inner winding shaft on the inhaul cable, and the stable control of the transverse extending water delivery mechanism is sequentially achieved.

The present invention in a preferred example may be further configured to: the transverse extending water delivery mechanism further comprises five water bins.

Through adopting above-mentioned technical scheme, set up five the sump to will five the sump is installed respectively the outer end of being responsible for, first external pipe, center tube, second external pipe and branch pipe to this reaches the guide to water.

The present invention in a preferred example may be further configured to: the water sump is arranged among the extension pipe combined inner main pipe, the first outer connecting pipe, the central pipe, the second outer connecting pipe and the branch pipe and is used for conveying water.

Through adopting above-mentioned technical scheme, utilize to set up can outwards extend and the person in charge, first external pipe, center tube, the outer takeover of second and branch pipe of internal contraction, when opening up the interval inequality between ridge and the ridge, utilize the flexible interval that changes between the above-mentioned five pipe fittings to can make the device to the quick adaptation of the interior ridge of field mu.

The present invention in a preferred example may be further configured to: the ridge radial adjusting mechanism further comprises a shaft rod, a limiting ring arranged outside the shaft rod, a support movably sleeved on the shaft rod and a sleeve ring arranged outside the support.

Through adopting above-mentioned technical scheme, utilize to set up lantern ring and support, with axostylus axostyle movable mounting in the support, after changing the interval between a plurality of pressure boost drainage mechanism, can adjust the sideslip of screw on the axostylus axostyle outside to can make the device can carry out the adaptation to the field ridge of different intervals.

The present invention in a preferred example may be further configured to: the pressurizing drainage mechanism further comprises a longitudinal water guide pipe arranged in the water sump, a sleeve is arranged at the top end of the longitudinal water guide pipe, and a spiral end is arranged at the bottom end of the longitudinal water guide pipe.

Through adopting above-mentioned technical scheme, utilize to set up vertical aqueduct, and fixed mounting lantern ring on the screw thread end of vertical aqueduct bottom utilizes vertical aqueduct and lantern ring and support to carry on spacingly to the staff, thereby can make the stability of the device's radial adjustment mechanism in field ridge when using.

The present invention in a preferred example may be further configured to: the bottom of the air bag is connected with a spray head.

Through adopting above-mentioned technical scheme, according to a plurality of shower nozzles of half arc notch bottom fixed mounting of protecting sheathing bottom utilize the hose to be connected shower nozzle and gasbag, utilize the adaptation of distributing at the intraoral shower nozzle of protecting sheathing bottom half arc notch to the ridge, very big make things convenient for the sprinkling irrigation of ridge water feeding.

The present invention in a preferred example may be further configured to: the screw is engaged with the gear and can horizontally traverse along the shaft.

Through adopting above-mentioned technical scheme, utilize protective housing outside fixed mounting gear simultaneously at gear external toothing spiral piece, work as when the spiral piece rotates, receive the transmission of spiral piece to the gear, a plurality of pressure boost drainage mechanism integrations can carry out the adaptation to the field ridge that the crookedness is different this moment and use.

The present invention in a preferred example may be further configured to: the bottom of the protective shell is provided with a semi-arc-shaped notch.

By adopting the technical scheme, the protection shell is arranged, the semi-arc-shaped groove is formed in the bottom of the protection shell, and the bottom of the protection shell is matched with the ridges according to the shapes of the ridges for planting potatoes in the field, so that gullies between adjacent ridges can be prevented from being wetted by water in the water spraying process.

By adopting the technical scheme, the invention has the beneficial effects that:

1. in the invention, as shown above, because the ridge-shaped soil is wavy, gullies formed between two adjacent ridges are easy to accumulate water, and the wide-angle sprinkler is adopted to spray water to the field, which can affect the subsequent mechanical film covering and manual film integration operation, therefore, by arranging the protective shell which can be adapted to the wavy ridges for use, arranging the air bag in the inner cavity of the protective shell, fixedly connecting the air bag to the inner side of the spherical cabin body in the middle of the protective shell by utilizing the opening at the top of the air bag, when water is conveyed into the air bag from the longitudinal water guide pipe and is extruded by water pressure, the air bag expands in the inner cavity of the protective shell, the expanded air bag generates larger pressure on water, when the spray head discharges, atomized water is formed to spray the ridges, so that the wetting of wide-angle spray irrigation to gullies among the ridges can be greatly reduced.

2. According to the invention, as the area of the field after integration is very large, if the ridge for planting potatoes is bent in a local range, the transverse movement of the whole adjusting device is difficult to operate, and the effective adaptation of the device to the bent ridge is improved in the future, the lantern ring is fixedly arranged outside the connecting end at the bottom of the longitudinal water guide pipe, the rotatable shaft rod is movably arranged by utilizing the lantern ring and the support, the elastic part and the spiral part are arranged on the shaft rod, and when the curvature of the ridge is changed, the rotary shaft rod is utilized to drive the spiral part to engage with the gear outside the protective shell to deflect, so that the device can be effectively adapted to the ridge in a bent state.

3. According to the invention, as the external water pipe adopted by the existing traversing sprinkler is assembled in an independent pipeline external connection mode, the external water pipe needs to be manually installed and disassembled during and after use, a long time is spent on the adjusting device before and after use, and in order to improve the rapid use of the device, the extension distance of the five pipe fittings is controlled by using the fixing nut outside the water sump through arranging the main pipe, the first external pipe, the central pipe, the second external pipe and the branch pipe which can be extended outwards and retracted inwards, and the five pipe fittings are adaptively adjusted according to the widths of different field ridges, so that the device can be rapidly put into the field for use, and the high efficiency and convenience of the operation of the device are greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic side bottom view of an embodiment of the present invention;

FIG. 3 is a partial schematic structural view of FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the partially dispersed structure of FIG. 3 according to one embodiment of the present invention;

FIG. 5 is a schematic diagram of the scattering structure of FIG. 3 according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of the partially dispersed structure of FIG. 5 according to one embodiment of the present invention;

FIG. 7 is a schematic diagram of a partial top view of the structure of FIG. 5 in accordance with one embodiment of the present invention;

FIG. 8 is a schematic diagram of the partially dispersed structure of FIG. 7 in accordance with one embodiment of the present invention;

FIG. 9 is a partial schematic structural view of FIG. 2 in accordance with an embodiment of the present invention;

FIG. 10 is a schematic diagram of the internal cross-sectional structure of FIG. 9 according to an embodiment of the present invention.

Reference numerals:

100. a traversing mechanism; 110. a water tank; 120. a base;

200. a stable lifting mechanism; 210. bearing vertical piles; 220. a screw rod is adjusted in an elastic manner; 230. winding an inner shaft; 240. a cable;

300. a transversely extending water delivery mechanism; 310. an extension pipe assembly; 320. a water sump; 311. a main pipe; 312. a first external pipe; 313. a central tube; 314. a second outer adapter tube; 315. a branch pipe;

400. a ridge radial adjusting mechanism; 410. a shaft lever; 420. an elastic member; 430. a screw; 440. a limiting ring; 450. a collar; 460. a support;

500. a pressurizing and draining mechanism; 510. a longitudinal aqueduct; 520. a protective housing; 530. a gear; 540. an air bag; 550. and (4) a spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.

A translational sprinkler provided by some embodiments of the present invention is described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 4, 6, 8 and 10, the present invention provides a translational sprinkler, which includes a traversing mechanism 100, a stable lifting mechanism 200, a transversely extending water delivery mechanism 300, a ridge radial adjusting mechanism 400 and a pressurizing drainage mechanism 500, wherein the stable lifting mechanism 200 is installed on the traversing mechanism 100, the transversely extending water delivery mechanism 300 is installed on the traversing mechanism 100, the pressurizing drainage mechanism 500 is connected to the transversely extending water delivery mechanism 300, and the ridge radial adjusting mechanism 400 is movably connected to the outside of the pressurizing drainage mechanism 500.

The specific transverse moving mechanism 100 comprises a water tank 110 and a base 120, the stable lifting mechanism 200 comprises a bearing vertical pile 210, a tightness adjusting screw 220, a winding inner shaft 230 and a guy cable 240, the transverse extending water delivery mechanism 300 comprises an extension pipe assembly 310 and a water sump 320, the extension pipe assembly 310 further comprises a main pipe 311, a first outer connecting pipe 312, a central pipe 313, a second outer connecting pipe 314 and a branch pipe 315, the ridge radial adjusting mechanism 400 comprises a shaft rod 410, an elastic member 420, a spiral member 430, a limiting ring 440, a lantern ring 450 and a support 460, and the pressurizing drainage mechanism 500 comprises a longitudinal water guide pipe 510, a protective shell 520, a gear 530, an air bag 540 and a spray head 550.

Specifically, the traversing mechanism 100 is used for traversing the whole device, the stabilizing and lifting mechanism 200 is installed on the traversing mechanism 100, the stabilizing and lifting mechanism 200 is used for stabilizing five pipe fittings of the device, the transversely-extending water delivery mechanism 300 comprises an extension pipe combination 310, the extension pipe combination 310 comprises a main pipe 311, a first outer connecting pipe 312, a central pipe 313, a second outer connecting pipe 314 and a branch pipe 315, the extension pipe combination 310 can extend outwards or contract inwards, the ridge radial adjusting mechanism 400 comprises a spiral member 430 capable of slightly traversing along the horizontal direction and an elastic member 420 connected to the outer end of the spiral member 430, the pressurizing and draining mechanism 500 comprises a protective shell 520 for delivering water, an air bag 540 connected to the inner cavity of the protective shell 520 and a gear 530 installed outside the protective shell 520, fixing nuts outside five water bins 320 are adjusted according to the space among the field ridges in different fields, and then the main pipe 311, the first outer connecting pipe 312 are controlled, The central pipe 313, the second outer connecting pipe 314 and the branch pipe 315 are extended outwards until the five pipes are fixed after being fitted to the ridge, and then the shaft 410 is rotated and adjusted according to the curvature of the ridge, thereby controlling the deflection of the gear 530 and the pressurized drainage mechanism 500 as a whole.

Example two:

in the above embodiment, as shown in fig. 1, the center of gravity of the apparatus can be balanced by fixedly installing the stable lifting mechanism 200 at the center of the top end of the water tank 110, and the traverse mechanism 100 includes the water tank 110 for guiding the water source and the base 120 installed at the bottom of the water tank 110 for movement.

Example three:

referring to fig. 4, in the above embodiment, nuts are screwed to both ends of the tension adjusting screw 220, and the control nuts are used to wind the guy 240 around the winding inner shaft 230, so as to achieve smooth control of the transversely extending water delivery mechanism 300, the stable lifting mechanism 200 includes a bearing vertical pile 210 installed at the top center of the water tank 110, the tension adjusting screw 220 movably connected inside the bearing vertical pile 210, the winding inner shaft 230 installed on the tension adjusting screw 220, and the guy 240 wound in a groove inside the winding inner shaft 230.

Example four:

in the above embodiment, as shown in fig. 5 and 6, the five water tanks 320 are respectively installed at the outer ends of the main pipe 311, the first outer connecting pipe 312, the central pipe 313, the second outer connecting pipe 314 and the branch pipes 315, so as to sequentially guide water, when ridges are formed and the intervals between the ridges are different, the telescopic intervals between the five pipe elements are changed, so that the device can be quickly adapted to the ridges in the field area, the transversely extending water conveying mechanism 300 further comprises the water tanks 320, the number of the water tanks 320 is five, and the water tanks 320 are installed among the main pipe 311, the first outer connecting pipes 312, the central pipe 313, the second outer connecting pipes 314 and the branch pipes 315 in the extension pipe assembly 310 for conveying water.

Example five:

in the above embodiment, as shown in fig. 8, after the distances between the plurality of pressurized drainage mechanisms 500 are changed, the traverse movement of the screw 430 on the outer portion of the shaft 410 can be adjusted, so that the device can adapt to ridges with different distances, when the screw 430 rotates, the screw 430 drives the gear 530, at this time, the plurality of pressurized drainage mechanisms 500 can be integrally adapted to ridges with different curvatures, the ridge radial adjustment mechanism 400 further includes the shaft 410, the stop ring 440 installed on the outer portion of the shaft 410, the bracket 460 movably sleeved on the shaft 410, and the collar 450 installed on the outer portion of the bracket 460, the screw 430 is engaged with the gear 530, and the screw 430 can horizontally traverse along the shaft 410.

Example six:

referring to fig. 10, in the above embodiment, the collar 450 is fixedly installed at the threaded end of the bottom of the longitudinal water conduit 510, the shaft 410 is limited by the longitudinal water conduit 510, the collar 450 and the bracket 460, so that the ridge radial adjustment mechanism 400 of the device is stable when in use, the spray nozzle 550 is connected with the air bag 540 by a hose, the spray nozzle 550 distributed in the semi-arc shaped groove at the bottom of the protective housing 520 is used for adapting to the ridge, so that the spray irrigation of water on the ridge is greatly facilitated, the bottom of the protective housing 520 is adapted to the ridge according to the shape of the ridge for planting potatoes in the field, so that the device can avoid the water from wetting the gullies between adjacent ridges during the water spraying process, the pressurizing drainage mechanism 500 further comprises the longitudinal water conduit 510 installed in the water sump 320, the sleeve is installed at the top end of the longitudinal water conduit 510, and the spiral end is installed at the bottom end of the longitudinal water conduit 510, the bottom of the air bag 540 is connected with a spray head 550, and the bottom of the protective shell 520 is provided with a semi-arc notch.

The working principle and the using process of the invention are as follows:

before use: because the existing traversing sprinkler has a wide spraying range and is more applied to integrated fields in use, the device can be sprayed on soil in a large area, when potatoes and the like are planted in a field area needing to open up ridges, the traversing sprinkler with large-area water spraying is not applicable to use, watering and film covering are needed after the potatoes are planted in the celestial meshes of the ridges, the film covering is mostly carried out mechanically nowadays, if gullies between two adjacent ridges are wetted, a great amount of clay is attached to wheels, the clay can easily bring the film up, therefore, in order to improve the efficient spraying of water to the ridges and reduce the moisture of the gullies, operators need to replace the traditional sprinkler with a protective shell 520 to adapt to the ridges by using the protective shell 520, and because the distances between different ridges are different, the device can be adapted to the ridges with different distances for convenience, when the machine is installed, an operator needs to rotate the fixing nut outside the water sump 320, then the main pipe 311, the first external connecting pipe 312, the central pipe 313, the second external connecting pipe 314 and the longitudinal water guide pipe 510 on the water sump 320 connected with the outer ends of the branch pipes 315 are integrally and transversely moved outwards until the shaft rods 410 are positioned in the middle of ridges of a field, the fixing nut outside the water sump 320 is fixed, then the operator needs to rotate the shaft rods 410, the elastic part 420 and the spiral part 430 are driven to rotate by the aid of the shaft rods 410, at the moment, the spiral part 430 in a rotating state can be meshed with the gear 530 to deflect, and accordingly the protective shell 520 is controlled to adapt to the ridges of different curvatures

When in use: after the above operations are completed, the operator needs to maintain the flatness of the whole of the main tube 311, the first external connecting tube 312, the central tube 313, the second external connecting tube 314 and the branch tube 315 in the horizontal direction in the outward extending state, then the five tubes are connected and wound inside the two internal winding shafts 230 outside the dancer screw 220 by using the guy cable 240, the dancer rotates and controls the nuts at the two ends outside the dancer screw 220 to control the stability of the dancer screw 220 and the internal winding shafts 230 inside the bearing vertical pile 210, and then the operator needs to externally drive the device to achieve the transverse movement of the device.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.