Unmanned machine of selling of sugaring is prevented to bull liquid intelligent regulation and control's thin liquid
Technical Field
The invention discloses a thin liquid anti-sugaring unmanned drink vending machine with intelligent multi-head liquid regulation and control, and belongs to the field of retail sales.
Background
Beverage unmanned machine of selling adopts two kinds of forms more, one kind is from mode confession drink, can possess common drinks such as cola, fruit juice, milk tea, milk, and another kind is bottled and canned drink encapsulation places in the case, then selects to press the button with the form of purchase and make bottle jar output, the two all is the tired people of convenient journey to quench one's thirst and uses, high-efficient convenient unmanned guard, rely on the electroplax to independently regulate and control realization equipment intellectuality independently, the shortcoming of treating the optimization of common technique at present has:
when the beverage water tank output filling of machine is sold to beverage nobody, because milk tea and milk can contain trace lactose, this can make flourishing fluid reservoir output runner and jar body surface attachment one deck pale white sugar stain difficult the cleaing away of body itself, it is very hard to save milk tea and milk just need to dismantle the jar body and scrub at every turn, and the sugar stain of the interior pipeline transport that buries in the runner is not good to be clear away, lactose can deteriorate under the low temperature damp and hot condition under the state of not abluent, influence the taste of later stage output beverage, cause the product quality of selling the machine poor, influence the consumption frequency of use, cause the condition that investment cost lacked, the bad area trace mould corruption pipeline of viscidity of sugar stain, can make the beverage incasement waterlogging, cause the phenomenon that the quick-witted mainboard that sel.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multi-head liquid intelligent control dilute liquid sugar-stain-preventing beverage vending machine, so that when a beverage water tank of the beverage vending machine is output and filled, because milk tea and milk contain a trace amount of lactose, a layer of light white sugar stain is difficult to remove attached to the output flow channel of the liquid containing tank and the surface of the tank body, the tank body needs to be disassembled and cleaned with great effort every time milk tea and milk are stored, and the sugar stain conveyed by the pipeline embedded in the flow channel is not easy to remove, lactose will deteriorate under the condition of low temperature and damp heat without cleaning, the taste of the beverage output at the later stage is influenced, the product quality of the vending machine is poor, the consumption and use frequency is influenced, the investment cost is insufficient, the rotten area trace mould corruption pipeline of viscidity of sugaring can make the drink case waterlogging, causes the problem of selling the phenomenon that quick-witted mainboard infiltration open circuit burns out.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a sugared beverage unmanned machine of selling is prevented to bull liquid intelligent regulation and control's thin liquid, its structure includes: the vending machine comprises a drawing side plate, a vending machine shell frame, an advertisement rolling screen, a temperature nixie tube, a touch screen, a filling water valve mechanism, a containing water receiving groove and a distribution box, wherein the filling water valve mechanism is nested on the top of the containing water receiving groove, the distribution box is tightly attached to the bottom of the containing water receiving groove, the temperature nixie tube and the touch screen are positioned on the same vertical surface and vertically nested on the front side of the filling water valve mechanism, the drawing side plate is movably connected with the vending machine shell frame, the advertisement rolling screen is installed on the top of the filling water valve mechanism, the distribution box is nested under the bottom of the vending machine shell frame, the filling water valve mechanism is provided with two electromagnetic valve heads, a three-way valve block, a double-layer ring pipe, a double-spray valve, a slide bar liquid storage tank, a square box and a valve seat groove, the two electromagnetic valve heads are respectively tightly attached to the left side and, the double-layer ring pipe and the double-water-spraying valves are buckled together, the slide bar liquid storage tank is installed inside the square box, the electromagnetic valve head and the three-way valve block are both installed inside the valve seat groove, the valve seat groove is nested on the top of the water containing groove, and the slide bar liquid storage tank is tightly attached to the rear side of the touch screen.
In order to optimize the technical scheme, the method further comprises the following steps:
as a further improvement of the invention, the three-way valve block consists of an inverted T-shaped pipe, a valve chamber, a plunger reed pipe and a three-grid groove shell block, wherein the T-shaped pipe is arranged in the valve chamber, the plunger reed pipe is movably connected with the inverted T-shaped pipe, the three-grid groove shell block and the valve chamber are in an integral structure, and the valve chamber is provided with three horizontal parts which are arranged in a straight line and are mutually communicated.
As a further improvement of the invention, the double-layer ring pipe consists of an inner scraping ring and a interlayer pipe, wherein the inner scraping ring and the interlayer pipe are in interference fit, and the interlayer pipe is arranged inside the inner scraping ring and has a collinear axis.
As a further improvement of the invention, the inner scraping ring consists of a frame ring, a sharp hook block, a sliding sleeve plate and a pushing fin groove, the pushing fin groove is mechanically connected with the frame ring through the sliding sleeve plate, and the sharp hook block and the sliding sleeve plate are welded into a whole.
As a further improvement of the invention, the double-spraying water valve consists of a pipe ring seat, two water guide pipes and double-spraying cross valves, wherein the two water guide pipes are respectively inserted and embedded at the left side and the right side of the pipe ring seat, and the water guide pipes are communicated with the double-spraying cross valves.
As a further improvement of the invention, the double-nozzle cross valve comprises a pipe embedding disc seat, a bidirectional horn cylinder, a sleeve and two torsion spring liquid pipes, wherein the sleeve vertically penetrates through the inside of the pipe embedding disc seat, the bidirectional horn cylinder and the sleeve are nested into a whole, the axes of the bidirectional horn cylinder and the sleeve are collinear, and the two torsion spring liquid pipes are respectively inserted and embedded at the left side and the right side of the bidirectional horn cylinder.
As a further improvement of the invention, the slide bar liquid storage tank consists of a water collecting spraying seat, a tank top cover and a slide bar tank shell, wherein the water collecting spraying seat is arranged in the tank top cover, the axes of the water collecting spraying seat are collinear, and the tank top cover and the slide bar tank shell are in interference fit.
As a further improvement of the invention, the water-collecting spraying seat consists of a shaft rotation seat, a water-collecting hole disc, a base disc and a spraying cap, wherein the shaft rotation seat is movably connected with the base disc through the water-collecting hole disc, the water-collecting hole disc is nested on the top of the spraying cap, and the spraying cap is arranged in the base disc and is positioned on the same horizontal plane.
As a further improvement of the invention, the slide bar tank shell consists of two roller scrapers, a slide bar, a tank shell barrel, two arc pads and a calandria column, wherein the roller scrapers are mechanically connected with the slide bar, the two arc pads are respectively welded on the left side and the right side of the calandria column, the calandria column is inserted and embedded in the bottom of the tank shell barrel, and the tank shell barrel and the slide bar are in clearance fit.
As a further improvement of the invention, the pushing fin groove is of a plate structure with a groove fin and a spring plate arranged in the groove fin, the groove is a block convenient for water flow filling, and then water flow pressurization is carried out on the spring plate to form an energy storage impact force to drive the whole annular structure to slide along the pipeline to scrape off sugar stains on the inner wall.
As a further improvement of the invention, the bidirectional horn is an integrated composite cylinder structure with a top spiral with a wide top and a narrow bottom, and a bottom side wall bent with a narrow top and a wide bottom, and the top spiral track sprays water flow, so that the vortex type hollow wall-attached fluid impact lifting motion is facilitated, and the inner wall scouring effect is realized.
As a further improvement of the invention, the water collecting hole plate is of a plate groove structure with an inward-sunk horn-shaped water collecting hole, so that water flow sprayed upwards in the tank body conveniently enters the plate inner collecting beam tube type converging operation along a sliding groove.
As a further improvement of the invention, the roller scraping plate is of a wheel ring structure with a shaving plate at the side, the shaving plate is of a structure with V-shaped grooves in trapezoidal blades which are sharp up and down, and the bidirectional movement function of conveniently moving up to scrape sugar stains and sliding down to scrape water scales is realized.
Advantageous effects
The invention relates to a thin liquid sugar stain-proof beverage unmanned vending machine intelligently regulated and controlled by multi-head liquid, when a drinker holds a cup container to load milk tea from the vending machine, a worker separates a vending machine shell frame from a filling water valve mechanism by pulling a pull side plate and pulls the vending machine shell frame out to refill the milk tea, in the early stage of filling, an advertisement rolling screen is placed in the vending machine shell frame in a standing way, then a water pipe is inserted into a water leading pipe of a double-water-jet valve to butt a pipe ring seat and the double-cross-jet valve through the water leading pipe to form water injection cleaning operation, water is injected through a torsion spring liquid pipe of a buried pipe disc seat and enters a bidirectional horn cylinder through a sleeve to realize up-down spray cleaning effect, an upper water flow forms a hollow vortex impacting along the wall through a spiral flow passage, enters a drain pipe tank shell of a slide bar liquid storage tank in a square box to flush, enters an interlayer of the tank shell cylinder through an arc pad and the left side and the right, at the moment, water flow enters a tank top cover and a water collecting spraying seat from top, flows into a spraying cap of a base plate through a shaft rotation seat and a water collecting hole plate in a rotating mode and flows together downwards to spray the inner wall of a tank shell to achieve a water circulation tank washing effect from bottom to top and then downwards, a roller scraper slides downwards under the action of gravity to scrape scales, the terminal in the tank body is cleaned, then an inner scraping ring of a double-layer ring pipe is movably matched with an interlayer pipe, the water flow enters an outer ring interlayer of the interlayer pipe to impact and push a fin groove to drive a sliding sleeve plate to pull a sharp hook block in a frame ring to permeate the water flow to dilute and scrape the sugar stain, an inner chute is scraped to dilute and scrape the sugar stain, finally fresh milk tea is poured into the tank shell to achieve the operation of filling drink materials, a worker regulates the temperature of heating milk tea through a touch screen, the temperature data is displayed through a temperature nixie tube, the drinker places a cup on a containing water tank when the proper temperature is reached, the milk tea enters a T-shaped inlet pipe which And the milk tea enters the valve chamber, then the three-grid cell shell block is pushed out through the plunger reed pipe, the milk tea is received by the electromagnetic valve head and is discharged downwards into the cup, the operation of selling a fixed amount of beverage is realized, the favorite beverage is filled by self regulation, and the beverage is exhausted and the sugar stain is cleaned conveniently.
The invention has the following advantages after operation:
the pull side plate is matched with a filling water valve mechanism, the slide bar liquid storage tank is pulled laterally through the pull side plate for filling, the beverage liquid is usually butted with a double-layer ring pipe through a row pipe column under a slide bar tank shell and is output at the position of an electromagnetic valve head, the inner wall of the interlayer pipe can be connected with a water conduit of a double-water-spraying valve in an interlayer external mode, the sugar stain on the inner wall of the pipeline is scraped and washed through an inner scraping ring pressurizing flow passage and a ring frame, then the double-water-spraying cross valve forms a washing effect of respectively spraying and irrigating up and down, a water collecting spraying seat on a tank top cover collects and sprays and discharges down, the inner path sugar stain washing effect after the water conduit is spliced is formed, water is diluted according to the characteristics of the sugar stain, the viscosity and the adhesive force of the water can be reduced, the inner pipeline and the tank wall of the machine are prevented from being excessively adhered to the wall, the fluid deterioration loss is not influenced by residues, and the function of the self-powered maintenance equipment is improved.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of a beverage vending machine for preventing sugaring of dilute liquid intelligently regulated and controlled by multiple heads of liquid.
Fig. 2 is a detailed sectional structural schematic diagram of the filling water valve mechanism of the present invention.
FIG. 3 is a schematic cross-sectional view of the three-way valve block, the double-layer ring pipe, the double water spray valve and the sliding rod liquid storage tank of the present invention in a working state.
Fig. 4 is a cross-sectional internal view structural diagram of the working state of the internal scraping ring of the invention.
Fig. 5 is a schematic perspective structural view of the double-nozzle cross valve in a working state.
Fig. 6 is a schematic view of a three-dimensional internal view structure of the water collecting spray seat in a working state.
Fig. 7 is a schematic perspective structural view of the sliding bar tank shell in a working state according to the present invention.
Description of reference numerals: a drawing side plate-1, a vending machine shell frame-2, an advertisement rolling screen-3, a temperature nixie tube-4, a touch screen-5, a filling water valve mechanism-6, a water receiving tank-7, a distribution box-8, an electromagnetic valve head-61, a three-way valve block-62, a double-layer ring tube-63, a double-spray water valve-64, a slide bar liquid storage tank-65, a square box-66, a valve seat groove-67, an inverted T-shaped tube-621, a valve chamber-622, a plunger reed tube-623, a three-grid groove shell block-624, an inner scraping ring-631, an interlayer tube-632, a frame ring-6311, a sharp hook block-6312, a sliding sleeve plate-6313, a pushing fin groove-6314, a tube ring seat-641, a water guide tube-642, a double-spray cross valve-643, a buried tube disc seat-6431, a bidirectional trumpet-64, Sleeve-6433, torsion spring liquid pipe-6434, catchment spray seat-651, tank top cover-652, slide bar tank shell-653, shaft rotating seat-6511, catchment hole disc-6512, base disc-6513, spray cap-6514, roller scraper-6531, slide bar-6532, tank shell cylinder-6533, arc pad-6534, calandria column-6535.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-7, the present invention provides a multi-head liquid intelligent control thin liquid anti-sugaring beverage vending machine, which structurally comprises: the vending machine comprises a drawing side plate 1, a vending machine shell frame 2, an advertisement rolling screen 3, a temperature nixie tube 4, a touch screen 5, a filling water valve mechanism 6, a water containing groove 7 and a distribution box 8, wherein the filling water valve mechanism 6 is nested on the top of the water containing groove 7, the distribution box 8 is tightly attached to the bottom of the water containing groove 7, the temperature nixie tube 4 and the touch screen 5 are positioned on the same vertical surface and vertically nested on the front side of the filling water valve mechanism 6, the drawing side plate 1 is movably connected with the vending machine shell frame 2, the advertisement rolling screen 3 is installed on the top of the filling water valve mechanism 6, the distribution box 8 is inserted and nested under the bottom of the vending machine shell frame 2, the filling water valve mechanism 6 is provided with two electromagnetic valve heads 61, a three-way valve block 62, a double-layer ring pipe 63, a double-way water injection valve 64, a liquid storage tank sliding rod 65, a square box 66 and a valve seat groove 67, the two electromagnetic valve, the three-way valve block 62 is communicated with the slide bar liquid storage tank 65 through a double-layer ring pipe 63, the double-layer ring pipe 63 is buckled with the double water spray valve 64, the slide bar liquid storage tank 65 is installed inside the square box 66, the electromagnetic valve head 61 and the three-way valve block 62 are both installed inside the valve seat groove 67, the valve seat groove 67 is nested on the top of the water containing groove 7, and the slide bar liquid storage tank 65 is tightly attached to the rear side of the touch screen 5.
Referring to fig. 3, the three-way valve block 62 is composed of an inverted T-shaped pipe 621, a valve chamber 622, a plunger spring pipe 623 and a three-cell housing block 624, the T-shaped pipe 621 is installed inside the valve chamber 622, the plunger spring pipe 623 is movably connected with the inverted T-shaped pipe 621, the three-cell housing block 624 and the valve chamber 622 are integrated, the valve chamber 622 is provided with three horizontal and aligned straight lines and is communicated with each other, the double-layer ring pipe 63 is composed of an inner scraping ring 631 and a partition pipe 632, the inner scraping ring 631 and the partition pipe 632 are in interference fit, the partition pipe 632 is installed inside the inner scraping ring 631 and has a collinear axis, the double-spraying valve 64 is composed of a pipe ring seat 641, a water conduit 642 and a double-spraying cross valve 643, the water conduit 642 is provided with two and respectively inserted and embedded at the left and right sides of the pipe ring seat, the water conduit 642 is communicated with the double-spraying cross valve 643, the slide rod 65 is composed of a water collecting spraying seat, The tank top cover 652 and the sliding rod tank shell 653 are combined, the water collecting spraying seat 651 is installed inside the tank top cover 652 and the axes of the water collecting spraying seat are collinear, the tank top cover 652 and the sliding rod tank shell 653 are in interference fit, water is introduced into the water conduit 642 through the butt joint of the inner scraping ring 631, then the lower water flow of the double-spraying cross valve 643 impacts the inner scraping ring 631 to move, and the effect of storing fluid and scraping and washing sugar stains is achieved.
Referring to fig. 4, the inner scraping ring 631 consists of a frame ring 6311, a pointed hook block 6312, a sliding sleeve plate 6313, and a pushing fin groove 6314, the pushing fin groove 6314 is mechanically connected to the frame ring 6311 through the sliding sleeve plate 6313, the pointed hook block 6312 is welded to the sliding sleeve plate 6313 as a whole, the pushing fin groove 6314 is a plate structure with a groove fin having a spring plate therein, the groove facilitates water flow injection, then water flow pressurization is applied to the spring plate to form an energy storage impact force to drive the whole ring structure to slide along the pipeline to scrape off inner wall sugar stains, the pushing fin groove 6314 is used to realize water flow potential storage impact to drive the pointed hook block 6312 to rotate to scrape off sugar stains attached to the interlayer pipe 632, and water flow penetrates through the water flow to dilute the bonded sugar stains, thereby realizing dilution and removal effects.
Referring to fig. 5, the dual spray cross valve 643 includes a buried pipe tray 6431, a bidirectional trumpet 6432, a sleeve 6433, and a torsion spring liquid pipe 6434, the sleeve 6433 vertically penetrates through the buried pipe tray 6431, the bidirectional trumpet 6432 and the sleeve 6433 are nested together, the axes of the bidirectional trumpet 6433 are collinear, two torsion spring liquid pipes 6434 are inserted into the left and right sides of the bidirectional trumpet 6432, the bidirectional trumpet 6432 is an integrated composite cylinder structure with a top spiral and a top wide and a bottom side wall bent and a bottom narrow and a bottom wide, the top spiral track sprays water flow, so as to facilitate the impact lifting movement of vortex type hollow wall-adhering fluid, and achieve the inner wall flushing effect, the top spiral hollow spray flow and the bottom baffling pressurization lower discharge tube of the bidirectional trumpet 6432 cooperate with the left and right through flow to form the cross movement torsion effect of water flow.
Referring to fig. 6, the water collecting spraying seat 651 is composed of a shaft rotating seat 6511, a water collecting hole disc 6512, a base disc 6513 and a spraying cap 6514, the shaft rotating seat 6511 is movably connected with the base disc 6513 through the water collecting hole disc 6512, the water collecting hole disc 6512 is nested on the top of the spraying cap 6514, the spraying cap 6514 is installed inside the base disc 6513 and is located on the same horizontal plane, the water collecting hole disc 6512 is a disc groove structure of an inward-recessed trumpet-shaped water collecting hole, so that water flow sprayed upwards in a tank body enters a disc collecting bundle pipe type converging operation along a sliding groove, and a circular flow adherent rolling washing spraying effect from bottom to top and then to bottom is formed by inserting the spraying cap 6514 through a lower star jet pipe of the water collecting hole disc 6512.
Referring to fig. 7, the slide bar can housing 653 is composed of a roller blade 6531, a slide bar 6532, a can housing 6533, arc pads 6534, and calandria columns 6535, the roller blade 6531 is mechanically connected to the slide bar 6532, the arc pads 6534 are two and are respectively welded to the left and right sides of the calandria columns 6535, the calandria columns 6535 are inserted and embedded in the bottom of the can housing 6533, the can housing 6533 and the slide bar 6532 are in clearance fit, the roller blade 6531 is a ring structure with a razor plate on the side, the razor is a trapezoidal piece with V-shaped grooves in the top and bottom sharp structure, so as to facilitate upward removal of sugar stains and downward sliding of scale, and the slide bar 6532 rotates around the can housing 6533 along a top bearing to pull the roller blade 6531 to ascend along with water impact and slide down along with counter weight, thereby achieving the reciprocating self-cleaning effect of the upper and lower scale.
The working process is as follows: when a drinker holds a cup container to finish filling milk tea in the vending machine, a worker pulls the pull side plate 1 to separate the vending machine shell frame 2 from the filling water valve mechanism 6 and pull out the milk tea again, in the early stage of filling, the advertisement rolling screen 3 stands still in the vending machine shell frame 2 to be placed, then a water pipe is inserted to supply water to the water guide pipe 642 of the double water spray valve 64, the pipe ring seat 641 and the double cross spray valve 643 are abutted through the water guide pipe 642 to form water injection cleaning operation, water is injected through the torsion spring liquid pipe 6434 of the buried pipe disc seat 6431 and enters the bidirectional horn 6432 through the sleeve 6433 to realize the up-and-down spraying effect, the upper water flow forms hollow vortex of slide impact on the wall through a spiral flow passage, enters for washing through the slide bar tank 653 of the slide bar liquid storage tank 65 in the square box 66, enters the interlayer of the tank barrel 6533 through the left side and the right side of the arc pad 6534 and the calandria 6535, then upwells, at the moment, water flow enters the tank top cover 652 and the water collecting spraying seat 651 from the top, flows into the spraying cap 6514 of the base plate 6513 through the shaft rotating seat 6511 and the water collecting hole plate 6512 in a rotating and converging manner to spray the inner wall of the tank shell 6533 downwards from bottom to top so as to realize a water circulation tank washing effect, then the roller scraping plate 6531 slides downwards under the dead weight to scrape scale, so as to realize terminal cleaning in the tank body, then the inner scraping ring 631 of the double-layer ring pipe 63 is movably matched with the interlayer pipe 632, the water flow enters the outer interlayer of the interlayer pipe 632 to impact and push the fin groove 6314 to drive the sliding sleeve 6313 to draw the sharp hook block 6312 in the frame ring 6311 to penetrate the water flow to dilute and scrape sugar stains, so as to achieve the effect of scraping and diluting the sugar stains in the inner sliding channel, finally fresh milk tea is poured into the tank shell 6533 again to realize the operation of filling drink materials, a worker regulates and controls the temperature of the heated milk tea through the touch screen 5, the drinking personnel place the cup on receiving basin 7 greatly, and through 8 whole distribution regulation and control milk tea of block terminal and flow into valve block 67 in three way valve block 62's falling T type pipe 621 gets into valve chamber 622 from top to bottom, then pushes out three check pot shell pieces 624 through plunger reed pipe 623, accept milk tea for solenoid valve head 61 arrange down and get into the cup, realize selling quantitative drink operation, independently regulate and control favorite drink filling, and it is convenient that the drink exhausts and washs the sugaring.
The invention achieves the aim of applying the matching of the drawing side plate 1 and the filling water valve mechanism 6 through the mutual combination of the components, the sliding rod liquid storage tank 65 is drawn by the side of the drawing side plate 1 for filling, the beverage liquid is usually butted with the double-layer ring pipe 63 through the row pipe column 6535 under the sliding rod tank shell 653 and is output to the electromagnetic valve head 61, so the inner wall of the interlayer pipe 632 can be connected with the water guide pipe 642 of the double-spray valve 64 through the interlayer, the sugar stain on the inner wall of the pipe is scraped and washed through the inner scraping ring 631 pressurized flow passage and the ring frame, then the double-spray cross valve 643 forms the washing effect of up-down and respectively spray irrigation, the water collecting and spraying seat 651 of the tank top cover 652 collects and sprays and discharges the water downwards to form the internal washing sugar stain effect after the water pipe is inserted, the viscosity and the adhesive force of the water are reduced according to the high consistency of the sugar stain, the excessive wall is prevented from being adhered to deteriorate and corrode, the nursing internal flow channel also ensures the taste of the beverage of the equipment, has no residue to influence the deterioration loss of the fluid, and improves the function of the maintenance equipment with the automatic activity, thereby solving the problem that when the beverage tank of the beverage vending machine is output and filled, because milk tea and milk contain a trace amount of lactose, a layer of light white sugar stain is difficult to remove attached to the output flow channel of the liquid containing tank and the surface of the tank body, the tank body needs to be disassembled and cleaned with great effort every time milk tea and milk are stored, and the sugar stain conveyed by the pipeline embedded in the flow channel is not easy to remove, lactose will deteriorate under the condition of low temperature and damp heat without cleaning, the taste of the beverage output at the later stage is influenced, the product quality of the vending machine is poor, the consumption and use frequency is influenced, the investment cost is insufficient, the rotten area trace mould corruption pipeline of viscidity of sugaring can make the drink case waterlogging, causes the problem of selling the phenomenon that quick-witted mainboard infiltration open circuit burns out.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.