阅读说明：本技术 一种层叠式家禽养殖设备及其系统 (Laminated poultry breeding equipment and system thereof ) 是由 毛金环 钟建能 黄运星 赖梁箫 赖志聪 于 2021-02-06 设计创作，主要内容包括：本发明公开了一种层叠式家禽养殖设备,包括笼网支架系统、喂料系统、饮水系统、清粪系统、集蛋系统、灯光系统、加湿消毒喷雾系统,笼网支架系统包括多排相互独立的支架,各支架包含有至少两层容纳层,各容纳层中均设置有养殖笼组；喂料系统位于笼网支架系统上方,将饲料分发到各养殖笼组；清粪系统位于笼网支架系统的一侧；集蛋系统位于笼网支架系统的另一侧。集笼网支架系统、喂料系统、饮水系统、清粪系统、集蛋系统、灯光系统以及加湿消毒喷雾系统为一体,并且清粪系统和集蛋系统分别设置在网笼支架系统的两侧,清粪系统自动将粪便清除到养殖设备外部,集蛋系统自行将产出的集蛋收集排列,放置于禽蛋托盘上,实现了更大规模的自动化养殖。(The invention discloses laminated poultry breeding equipment which comprises a cage net support system, a feeding system, a drinking water system, a manure cleaning system, an egg collecting system, a lighting system and a humidifying and disinfecting spraying system, wherein the cage net support system comprises a plurality of rows of mutually independent supports, each support comprises at least two accommodating layers, and a breeding cage group is arranged in each accommodating layer; the feeding system is positioned above the cage net support system and distributes the feed to each breeding cage group; the excrement cleaning system is positioned on one side of the cage net support system; the egg collecting system is positioned at the other side of the cage net bracket system. Collect cage net mounting system, feed system, drinking water system, clear excrement system, collection egg system, lighting system and humidification disinfection spraying system as an organic whole to clear excrement system and collection egg system set up respectively in the both sides of net cage mounting system, clear excrement system is automatic to clear away excrement and urine to the cultured equipment outside, and collection egg system is collected the range with the collection egg of output by oneself, places on the birds, beasts and eggs tray, has realized the automation of larger scale and has bred.)

1. A laminated poultry breeding device comprises a cage net support system (1), a feeding system (2), a drinking water system (3), a manure cleaning system (4), an egg collecting system (5), a lighting system (6) and a humidifying and disinfecting spraying system (7); the method is characterized in that:

the cage net support system (1) comprises a plurality of rows of mutually independent supports, each support comprises at least two accommodating layers, and each accommodating layer is provided with a culture cage group (8);

the feeding system (2) is positioned above the cage net support system (1) and distributes the feed to each breeding cage group (8);

the excrement cleaning system (4) is positioned on one side of the cage net support system (1) and is used for receiving excrement collection;

and the egg collecting system (5) is positioned on the other side of the cage net bracket system (1) and is used for collecting eggs and discharging the eggs onto an egg tray (536).

2. The stacked poultry farming plant of claim 1, wherein: egg collection system (5) are including egg pocket (51), be equipped with horizontal defeated egg area (52) in egg pocket (51), horizontal defeated egg area (52) and egg collector (53) butt joint, egg collector (53) are including egg collection mechanism (531), one side of egg collection mechanism (531) is equipped with a plurality of egg groove (532) that connect that arrange in proper order from the top down, and the opposite side is equipped with spacing groove (533), the egg hole down has been seted up to the end of spacing groove (533), spacing groove (533) below still is equipped with XY axle slide rail (534), it sets up on XY axle slide rail (534) to put thing platform (535) slidingtype.

3. The stacked poultry farming installation of claim 2, wherein: the egg collecting mechanism (531) comprises a shell (5311), an inlet is formed in one side of the shell (5311), a vertical egg conveying belt (5312) is arranged inside the shell, the egg receiving groove (532) conveys eggs into the shell (5311) through the inlet, and the vertical egg conveying belt (5312) conveys the eggs into a limiting groove (533).

4. The stacked poultry farming plant of claim 1, wherein: breed cage group (8) including a plurality of vertical arrangement breed cage (81), breed the equal downward sloping in bottom plate both ends of cage (81), the size of inclination alpha is 7 and is greater than or equal to alpha and is less than or equal to 9.

5. The stacked poultry farming plant of claim 1, wherein: the manure cleaning system (4) comprises a manure conveying belt (41), the manure conveying belt (41) is arranged below the breeding cage (81), a plurality of groups of manure scraping mechanisms are arranged at one end of the cage net support system (1), and manure on the manure conveying belt (41) is scraped by the manure scraping mechanisms to fall into a manure collector (42) located on the outer side of the manure collecting mechanisms.

6. The stacked poultry farming plant of claim 5, wherein: scrape excrement mechanism and include that first scrape excrement mechanism and second and scrape excrement mechanism, first scrape excrement mechanism and be located defeated excrement area (41) tip, the second is scraped excrement mechanism and is located defeated excrement area (41) below.

7. The stacked poultry farming plant of claim 6, wherein: first excrement mechanism of scraping is including setting up vertical fixed plate (43) in cage net support system (1) outside, a plurality of mounting panels (44) and vertical fixed plate (43) rotate to be connected, be fixed with first excrement scraping plate (45) on mounting panel (44), the below of mounting panel (44) is equipped with first spring (46) in proper order, first stay nail (47), first haulage rope (48) pass first spring (46) in proper order, first stay nail (47) and first handle (49) are connected, first stay nail (47) and first haulage rope (48) fixed connection, first handle (49) are taut or loosen first haulage rope (48), make first stay nail (47) compress tightly or loosen mounting panel (44), and then make first excrement scraping plate (45) and defeated excrement area (41) contact or separation.

8. The stacked poultry farming plant of claim 6, wherein: the second dung scraping mechanism comprises a transverse fixing plate (431) arranged on the cage net support system (1), at least two second dung scraping plates (451) are rotatably arranged on the transverse fixing plate (431), one sides of the second dung scraping plates (451) are sequentially provided with a second spring (461) and a second pressing nail (471), a second traction rope (481) sequentially penetrates through the second pressing nail (471), the rear part of the second spring (461) is connected with a second handle (491), the second pressing nail (471) is fixedly connected with the second traction rope (481), the second handle (491) is tensioned or loosened, the second compression nail (471) is pressed or loosened, and the second dung scraping plates (451) are contacted or separated with a dung conveying belt (41).

9. The stacked poultry farming plant of claim 5, wherein: the dung collector (42) comprises a horizontal conveying mechanism (421) and an inclined conveying mechanism (422), the conveying directions of the horizontal conveying mechanism (421) and the inclined conveying mechanism (422) are perpendicular to each other, the horizontal conveying mechanism (421) is located below the dung scraping mechanism, and the inclined conveying mechanism (422) is located on the outer side of the horizontal conveying mechanism (421).

10. A farming system comprising the stacked poultry farming plant of any one of claims 1 to 9, wherein: including breeding canopy (9), the equipment setting of breeding is in breeding canopy (9), all be equipped with wet curtain of side wall (91) on the both sides wall of breeding canopy (9), wet curtain of side wall (91) inboard is equipped with aviation baffle (95), is equipped with wet curtain of positive wall (92) and negative pressure fan group (93) on a pair of positive wall respectively, the top of negative pressure fan group (93) still is equipped with side window (94).

Technical Field

The invention relates to the technical field of poultry farming equipment, in particular to laminated poultry farming equipment and a system thereof.

Background

With the development of economy in China and the increasing emphasis on environmental protection, the layer chicken breeding mode in China slowly changes from initial stocking on the ground to cage breeding. With the reduction of land resources and the increase of labor cost, the cage culture is slowly transited to the high-density stacked cage culture from the stepped cage culture with low initial density.

At the present stage, most of automatic stacked cage-rearing devices are four-layer or five-layer devices, the feeding quantity of the four-layer stacked cage-rearing devices is less than that of five-layer devices, but the operation of the five-layer stacked cage-rearing devices is not convenient for four layers, and the existing poultry rearing devices do not form a complete and automatic operation system no matter for four layers or five layers, so that the device is very disadvantageous for enlarging the production scale.

Disclosure of Invention

The invention aims at the problems in the prior art and provides a laminated poultry farming equipment and a system thereof.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a laminated poultry breeding device comprises a cage net support system, a feeding system, a drinking water system, a manure cleaning system, an egg collecting system, a lighting system and a humidifying and disinfecting spraying system;

the cage net support system comprises a plurality of rows of mutually independent supports, each support comprises at least two accommodating layers, and each accommodating layer is provided with a culture cage group;

the feeding system is positioned above the cage net support system and used for distributing the feed to each breeding cage group;

the excrement cleaning system is positioned on one side of the cage net support system and used for receiving excrement collection;

and the egg collecting system is positioned on the other side of the cage net bracket system and is used for collecting eggs and discharging the eggs onto an egg tray.

Further, the egg collecting system comprises an egg pocket, a horizontal egg conveying belt is arranged in the egg pocket, the horizontal egg conveying belt is in butt joint with an egg collector, the egg collector comprises an egg collecting mechanism, a plurality of egg collecting grooves are formed in one side of the egg collecting mechanism from top to bottom in sequence, a limiting groove is formed in the other side of the egg collecting mechanism, a lower egg hole is formed in the tail end of the limiting groove, XY-axis slide rails are further arranged below the limiting groove, and the article placing table is arranged on the XY-axis slide rails in a sliding mode.

Furthermore, the egg collecting mechanism comprises a shell, an inlet is formed in one side of the shell, a vertical egg conveying belt is arranged in the shell, eggs are conveyed into the shell through the inlet by an egg receiving groove, and the eggs are conveyed into the limiting groove by the vertical egg conveying belt.

Furthermore, the breeding cage group comprises a plurality of vertically arranged breeding cages, two ends of a bottom plate of each breeding cage are both inclined downwards, and the size of the inclination angle alpha is not less than 7 degrees and not more than 9 degrees.

Furthermore, clear excrement system is including defeated excrement area, and defeated excrement area sets up in the below of breeding the cage, and cage net support system's one end is equipped with the multiunit and scrapes excrement mechanism, scrapes excrement and urine on the excrement area of excrement mechanism and scrapes and fall to the collection excrement ware that is located its outside.

Further, scrape excrement mechanism and include that first scrape excrement mechanism and second and scrape excrement mechanism, first scrape excrement mechanism and be located defeated excrement area tip, the second is scraped excrement mechanism and is located defeated excrement area below.

Further, first excrement mechanism of scraping is including setting up the vertical fixed plate in the cage net support system outside, a plurality of mounting panels and vertical fixed plate rotate to be connected, be fixed with first excrement scraping plate on the mounting panel, the below of mounting panel is equipped with first spring in proper order, first compressing tightly the nail, first haulage rope passes first spring in proper order, first compressing tightly nail and first handle are connected, first compressing tightly nail and first haulage rope fixed connection, first haulage rope is taut or relaxed to first handle, make first compressing tightly nail compress tightly or relax the mounting panel, and then make first excrement scraping plate and defeated excrement area contact or separate.

Further, excrement mechanism is scraped including setting up the transverse fixing plate on cage net support system to the second, two at least second dung scraping plate rotary types set up on transverse fixing plate, one side of second dung scraping plate is equipped with second spring and second in proper order and presses the nail, the second haulage rope passes the second in proper order and presses the nail, connect with the second handle behind the second spring, second pressure nail and second haulage rope fixed connection, the second haulage rope is taut or relaxed to the second handle, make the second compress tightly the nail compress tightly or relax the second dung scraping plate, make second dung scraping plate and defeated excrement area contact or separation.

Furthermore, the dung collector comprises a horizontal conveying mechanism and an inclined conveying mechanism, the conveying directions of the horizontal conveying mechanism and the inclined conveying mechanism are perpendicular to each other, the horizontal conveying mechanism is located below the dung scraping mechanism, and the inclined conveying mechanism is located on the outer side of the horizontal conveying mechanism.

A cultivation system comprises a cultivation shed, cultivation equipment is arranged in the cultivation shed, side wall wet curtains are arranged on two side walls of the cultivation shed, air deflectors are arranged on the inner sides of the side wall wet curtains, a pair of front walls are respectively provided with a front wall wet curtain and a negative pressure fan set, and a side window is further arranged above the negative pressure fan set.

The invention has the beneficial effects that:

the net cage support of the laminated poultry breeding device provided by the invention integrates the cage net support system, the feeding system, the drinking system, the excrement cleaning system, the egg collecting system, the lighting system and the humidifying and disinfecting spraying system into a whole, the excrement cleaning system and the egg collecting system are respectively arranged on two sides of the net cage support system, excrement is automatically cleaned to the outside of the breeding device by the excrement cleaning system, the produced egg collecting system automatically collects and arranges the produced eggs and places the eggs on egg trays, and the systems are mutually matched and operate orderly, so that large-scale automatic breeding is realized.

Drawings

FIG. 1 is a front view of a stacked poultry farming facility of the present invention;

FIG. 2 is a schematic structural view of the invented cultivation cage;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is a side view of the stacked poultry farming facility of the present invention;

FIG. 5 is an enlarged view of the soil 2 of the present invention at B;

FIG. 6 is an enlarged view taken at C of FIG. 4 in accordance with the present invention;

fig. 7 is a schematic representation of an avian egg system of the present invention;

FIG. 8 is a schematic structural view of the egg collector of the present invention;

FIG. 9 is an enlarged view of the invention at F in FIG. 1;

FIG. 10 is an enlarged view taken at D of FIG. 4 in accordance with the present invention;

FIG. 11 is an enlarged view taken at E in FIG. 4 in accordance with the present invention;

FIG. 12 is a schematic structural view of a second dung scraping mechanism according to the present invention;

FIG. 13 is a schematic structural view of a farming system according to the present invention;

FIG. 14 is a diagram of the winter ventilation state of the present invention;

fig. 15 is a diagram illustrating a summer ventilation state according to the present invention.

In the figure: 1-cage net support system, 2-feeding system 21-self-propelled feeder, 22-hopper, 23-leveling device, 24-material tower, 3-drinking water system, 31-water outlet, 32-water receiving tank, 4-feces cleaning system, 41-feces conveying belt, 42-feces collector, 421-horizontal conveying mechanism, 422-inclined conveying mechanism, 43-vertical fixing plate, 44-mounting plate, 45-first feces scraping plate, 46-first spring, 47-first pressing nail, 48-first traction rope, 49-first handle, 431-transverse fixing plate, 451-second feces scraping plate, 461-second spring, 471-second pressing nail, 481-second traction rope, 491-second handle, 5-egg collecting system, 51-egg pocket, 52-horizontal egg conveying belt, 53-egg collector, 531-egg collecting mechanism, 5311-shell, 5312-vertical egg conveying belt, 532-egg receiving groove, 533-limiting groove, 534-XY-axis sliding rail, 535-object placing table, 536-egg tray, 6-lighting system, 7-humidification and disinfection spraying system, 8-culture unit, 81-culture cage, 9-culture shed, 91-side wall wet curtain, 92-positive wall wet curtain, 93-negative pressure fan set, 94-side window and 95-air deflector.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1-12, the present invention provides a stacked poultry farming facility and a system thereof, and aims to provide a fully automated poultry farming facility and a system thereof, so as to achieve the purposes of saving manpower and material resources, enlarging production scale, and improving production efficiency.

Referring to fig. 1 and 2, a stacked poultry farming facility provided by the present invention includes a cage support system 1, a feeding system 2, a drinking water system 3, a manure cleaning system 4, an egg collecting system 5, a lighting system 6, and a humidification and disinfection spraying system 7.

Cage net mounting system 1, including multirow mutually independent support, each support includes at least two-layer and holds the layer, breeds unit 8 and places and hold the layer, and in this embodiment to two-layer is held the layer and is taken as an example, and a breed unit 8 has all been placed in every layer holds the layer.

Referring to fig. 2 and 3, the cultivating unit 8 includes a plurality of cultivating cages 81 arranged in sequence from top to bottom. Both ends of the bottom plate of the cultivation cage 81 are inclined downwards to form an inclination angle alpha, and the size of the inclination angle alpha is more than or equal to 7 degrees and less than or equal to 9 degrees.

Referring to fig. 4 and 5, the egg collecting system 5 includes egg pockets 51, the egg pockets 51 are strip-shaped grooves and are disposed on two sides of the breeding cage 81, and due to the fact that two ends of the bottom plate of the breeding cage 81 are inclined downwards, the produced eggs can timely fall into the egg pockets 51, and the eggs cannot be broken due to untimely picking.

Referring to fig. 6, a horizontal egg conveying belt 52 is disposed in the egg pocket 51, the horizontal egg conveying belt 52 is in butt joint with an egg collector 53, and the eggs in the egg pocket 51 are conveyed to the egg collector 53 at one end of the cage net support system 1.

Referring to fig. 7, the egg collector 53 includes an egg collecting mechanism 531, one side of the egg collecting mechanism 531 is provided with a plurality of egg receiving grooves 532 sequentially arranged from top to bottom, the other side is provided with a limiting groove 533, the end of the limiting groove 533 is provided with an egg discharging hole, an XY-axis slide rail 534 is arranged below the limiting groove 533, and the article placing table 535 is slidably arranged on the XY-axis slide rail 534.

One end of the egg receiving groove 532 is in butt joint with the horizontal egg conveying belt 52, eggs on the horizontal egg conveying belt 52 sequentially enter the egg receiving groove 532 and enter the egg collecting mechanism 531 from the other end of the egg receiving groove 532, the egg collecting mechanism 531 sends the sequential eggs into the limiting grooves 533 to be arranged in a row, and the eggs at the tail ends of the limiting grooves 533 fall into the egg tray 536 on the storage platform 535 from egg laying holes. The placement stage 535 moves on the XY-axis slide rails 534 until the egg tray 536 is filled with eggs.

Referring to fig. 8, the egg collecting mechanism 531 includes a housing 5311, an inlet is formed at one side of the housing 5311, and the egg receiving groove 532 feeds the eggs into the housing 5311 through the inlet.

The vertical egg conveying belt 5312 is arranged in the shell 5311, and the vertical egg conveying belt 5312 conveys the eggs on the side to the limiting groove 533 on the outer side of the upper end of the vertical egg conveying belt.

Referring to fig. 1 and 9, the drinking water system 3 includes a plurality of water outlets 31 disposed at the upper portion of the cultivation cage 81, and all the water outlets 31 are connected with a water source through water pipes. A water receiving groove 32 is arranged below the water outlet 31.

The water source sequentially passes through the water pipe to reach the water outlet 31, the poultry can drink water from the water outlet 31, and the water which is not drunk drops into the water receiving tank 32.

Referring to fig. 4 and 10, the manure cleaning system 4 comprises a manure conveying belt 41, the manure conveying belt 41 is arranged below the cultivation cage 81 and used for receiving excrement of the poultry and transferring the excrement to the other end of the cage net support system 1, and the distance h between the manure conveying belt 41 and the top of the cultivation cage 81 is 7cm or more and h or less and 10cm or less.

The other end of the cage net support system 1 is provided with a plurality of groups of dung scraping mechanisms which scrape dung on the dung conveying belt 41 into a dung collector 42 positioned at the outer side of the dung conveying belt.

Referring to fig. 11 and 12, the dung scraping mechanism includes a first dung scraping mechanism and a second dung scraping mechanism. The first excrement mechanism of scraping is located defeated excrement area 41 tip, carries out clear excrement for the first time, and the second is scraped excrement mechanism and is located defeated excrement area 41 below, carries out the clear excrement of secondary.

The first dung scraping mechanism comprises a vertical fixing plate 43, the vertical fixing plate 43 is arranged on the outer side of the cage net support system 1, the mounting plate 44 is rotatably connected with the vertical fixing plate 43, and the first dung scraping plate 45 is fixed on the mounting plate 44. A first spring 46 and a first pressing nail 47 are sequentially arranged below the mounting plate 44, a first traction rope 48 sequentially penetrates through the first spring 46, the first pressing nail 47 and the first handle 49 to be connected, and the first pressing nail 47 is fixedly connected with the first traction rope 48.

Pulling the first handle 49 pulls or releases the first pulling rope 48, so that the first pressing nail 47 presses or releases the mounting plate 44, and the first dung scraping plate 45 and the dung conveying belt 41 are contacted or separated.

The second dung scraping mechanism comprises a transverse fixing plate 431 arranged on the cage net support system 1, at least two second dung scraping plates 451 are rotatably arranged on the transverse fixing plate 431, a second spring 461 and a second pressing nail 471 are sequentially arranged on one side of each second dung scraping plate 451, a second traction rope 481 sequentially penetrates through the second pressing nail 471 and the second spring 461 and then is connected with a second handle 491, and the second pressing nail 471 and the second traction rope 481 are fixedly connected.

The second handle 491 is pulled to tighten or loosen the second traction rope 481, so that the second pressing nail 471 presses or loosens the second dung scraping plate 451, and the second dung scraping plate 451 and the dung conveying belt 41 are contacted or separated.

Referring to fig. 4, the manure collector 42 includes a horizontal conveying mechanism 421 and an inclined conveying mechanism 422, the conveying directions of the horizontal conveying mechanism 421 and the inclined conveying mechanism 422 are perpendicular to each other, the horizontal conveying mechanism 421 is located below the manure scraping mechanism, and the inclined conveying mechanism 422 is located outside the horizontal conveying mechanism 421.

The horizontal conveying mechanism 421 receives the excrement scraped by the excrement scraping mechanism and conveys the excrement to the inclined conveying mechanism 422 positioned at the outer side of the horizontal conveying mechanism, and the inclined conveying mechanism 422 sends the excrement out.

The horizontal transfer mechanism 421 and the inclined transfer mechanism 422 are conventional transfer belts and will not be described in detail.

Referring to fig. 1, 2 and 5, the feeding system 2 includes a self-propelled feeder 21 and a material tower 24, wherein the material cylinder of the self-propelled feeder 21 extends from one side of the cage support system 1 to the other side and is used for filling the material hopper 22 located below the self-propelled feeder. The hoppers 22 are each provided with a leveler 23.

Referring to fig. 1, the lighting system 6 includes a plurality of led lamps disposed between adjacent brackets, and the led lamps are all connected to a controller, and the controller controls the brightness and color of the light to adapt to the living habits of the poultry.

Referring to fig. 1, the spray system 7 for humidification, disinfection and sterilization includes nozzles disposed above the cage support system 1 and between adjacent frame bodies, the nozzles are dual-nozzle nozzles, both nozzles face the cultivation holes 81, and the included angle between the nozzles is 40 ° to 60 °.

Referring to fig. 13, a cultivation system including the cultivation apparatus includes a cultivation shed 9, and the cultivation apparatus is disposed in the cultivation shed 9. Both side walls of the cultivation shed 9 are provided with side wall wet curtains 91, the inner sides of the side wall wet curtains 91 are provided with air deflectors, a pair of front walls are respectively provided with a front wall wet curtain 92 and a negative pressure fan set 93, and a side window 94 is arranged above the negative pressure fan set 93.

Referring to fig. 14, in winter, the negative pressure fan unit 93 is turned on to ventilate, air enters from the side window 94 above the negative pressure fan unit 93, and the hot and cold air is mixed at the upper part of the breeding shed 9 to raise the temperature of fresh air, so as to prevent the fresh air from directly contacting the bodies of the poultry to cause diseases, and finally the fresh air is extracted by the negative pressure fan unit 93 to complete the exchange of air.

Referring to fig. 15, in summer, the air enters from the side wall wet curtain 91, enters the cold and hot air mixing area after the action of the air deflector 95, raises the temperature of the fresh air, prevents the fresh air from directly contacting the bodies of the poultry to cause illness, and ensures the healthy growth of the poultry.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.