Intelligent building water supply and drainage sewage drain
Technical Field
The invention relates to the technical field of pipelines, in particular to an intelligent building water supply and drainage sewage pipeline.
Background
The utility model provides a self-sewage drain pipeline of present application number CN108894299B specifically discloses including body part and the extension section of setting in body part one side, be provided with a blowdown passageway in the middle of the body part, be provided with a first baffle near the sewage access port in the middle of the blowdown passageway, first baffle cuts apart whole blowdown passageway into the blowdown chamber of upper end and the first drainage chamber of bottom, the output of first baffle has a filter segment, and the bottom output of filter segment connects the extension section, and the bottom of filter segment is provided with a second baffle, forms a confined intermediate chamber between second baffle and the filter segment and the extension section of upper end; the sewage pipeline can automatically remove scum floating on the sewage surface, automatically discharge and collect the scum, reduce the sewage treatment pressure in the later stage and reduce the discharge pressure of the pipeline.
When the existing drainage and blow-down pipe is blocked in the blow-down process, particularly some curved pipelines, when part of the pipelines are in a transverse state, dirt is accumulated in the transverse pipelines, when the viscosity of the dirt is large, the dirt is attached to the inner wall of the pipelines, so that the dirt in the pipelines cannot be flushed away by water flow or impacted by air pressure, the dirt cannot be effectively blocked, a large amount of time is consumed for conducting the blow-down pipe, the labor intensity of personnel is high, the economic cost is increased, and therefore, the intelligent building drainage and blow-down pipe is provided.
Disclosure of Invention
The invention aims to provide an intelligent building water supply and drainage sewage drain pipe, which solves the problems that when a drainage sewage drain pipe is blocked in the sewage drain process, particularly some bent pipelines, when part of the pipeline is in a transverse state, dirt is accumulated in the transverse pipeline, when the viscosity of the dirt is large, the dirt is attached to the inner wall of the pipeline, so that the dirt in the pipeline cannot be flushed away by water flow or impacted by air pressure, the dirt cannot be effectively blocked, a large amount of time is consumed for conducting the sewage drain pipe, the labor intensity of personnel is high, and the economic cost is increased.
In order to achieve the above purpose, the present invention provides the following technical solutions: the movable support is arranged in the first branch pipe, an annular cushion is arranged at the lower end of the movable support, the annular cushion is positioned in the first branch pipe and fixedly connected to the inner side of the first branch pipe, a plurality of vertical rods distributed in a circumferential array are penetrated through the movable support, the lower ends of the vertical rods are fixedly connected to the annular cushion, a bottom shaft is rotatably arranged at the bottom of the movable support, a vertical shaft is fixedly arranged at the lower end of the bottom shaft, a plurality of first blades distributed in a circumferential array are fixedly arranged at the upper end of the vertical shaft, the first blades are horizontally arranged, a plurality of second blades distributed in a circumferential array are fixedly arranged at the lower end of the vertical shaft, one ends of the second blades, far away from the vertical shaft, are obliquely arranged upwards, the cutting edges of the first blades and the second blades are arranged at the side of the vertical shaft, a cutter head is fixedly arranged at the bottom of the vertical shaft, and the driving mechanism is arranged in the first branch pipe and connected with the bottom shaft.
Further, the first branch pipe is arranged as an elbow, and the surfaces of the first blade and the second blade are both sprayed with an anti-rust coating.
Further, actuating mechanism includes the connecting axle, the connecting axle rotatable mounting is on the movable frame, the connecting axle runs through the movable frame and links firmly with the lower extreme, connecting axle top fixed mounting has first sprocket, fixed mounting has the structural chamber on the first branch pipe, structural chamber and first branch pipe inner space intercommunication, be provided with the movable seat in the structural chamber, rotatable mounting has the movable axle on the movable seat, the movable axle runs through the movable seat, movable axle top fixed mounting has the second sprocket, install the belt between second sprocket and the first sprocket, accessible belt drive between second sprocket and the first sprocket, movable axle lower extreme fixed mounting has the integral key shaft, the indoor bottom fixed mounting of structure has the motor, the output shaft fixed mounting of motor has the spline housing, spline housing and integral key shaft spline fit, the spline housing is established outside the integral key shaft, the indoor bottom fixed mounting of structure has the telescopic link, the output fixed connection of telescopic link is in movable seat bottom.
Further, waterproof covers are arranged outside the motor and the telescopic rod.
Further, the display device also comprises a plurality of groups of display mechanisms, wherein a plurality of groups of display mechanisms are distributed in an up-down equidistant mode, and the display mechanisms are arranged on the first branch pipe and are communicated with the first branch pipe.
Further, the display mechanism comprises a sleeve, sleeve fixed mounting is on first branch pipe and communicates with first branch pipe inner space, be equipped with the clamp plate in the sleeve, fixed mounting has travel switch on the sleeve, travel switch extends to in the sleeve, sleeve outer fixed mounting has the warning light, fixed mounting has the stand pipe in the sleeve, the stand pipe interpolation is equipped with the guide bar, the guide bar can be followed the stand pipe and removed, guide bar one end fixed connection is on the clamp plate, fixed mounting has the ejector pin on the clamp plate, ejector pin tip fixed mounting has the top sheet.
Further, the color of the indicator light is set to be red.
Further, the other end of the first branch pipe is fixedly provided with a transverse plate, a transverse shaft is rotatably arranged on the transverse plate, one end of the transverse shaft is fixedly provided with a plurality of fan blades distributed in a circumferential array, the other end of the transverse shaft is fixedly provided with a first bevel gear, the other end of the first branch pipe is rotatably provided with a vertical shaft, the lower end of the vertical shaft is fixedly provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the upper end of the vertical shaft is fixedly provided with a rotary table.
Further, still include second branch pipe and be responsible for, second branch pipe and first branch pipe all communicate with being responsible for and link firmly together, second branch pipe and first branch pipe symmetric distribution, be responsible for in fixed mounting has the porous disc, the porous disc upper end is equipped with the filter plate, the filter plate sets up in being responsible for inside, filter plate bottom fixed mounting has the movable rod, the movable rod runs through the porous disc, the cover is equipped with the spring on the movable rod, the spring both ends link firmly respectively on porous disc and filter plate, the rack is installed to movable rod bottom guide rail, rotatable installs the pivot in being responsible for, be provided with the closing plate in being responsible for, the closing plate can shutoff second branch pipe and first branch pipe with be responsible for the intercommunication mouth, fixed mounting has the connecting plate on the closing plate, the connecting plate links firmly in the pivot upper end, the pivot runs through being responsible for, rotatable mounting has first pivot in being responsible for, first pivot runs through being responsible for, first pivot one end is fixed with, the drive wheel is located the drive wheel, drive wheel and drive wheel mesh, the rack is installed on the support block outside the fixed mounting has the rotatable bevel gear of third pivot and fourth pivot, the bevel gear is installed to be installed to the fourth bevel gear and is fixed with the fourth bevel gear, bevel gear and fourth bevel gear mechanism is installed down with the fourth bevel gear and is fixed to the fourth bevel gear respectively.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the driving mechanism is arranged to drive the bottom shaft to rotate, and simultaneously drive the bottom shaft to move downwards along the direction of the vertical rod, the bottom shaft, the vertical shaft, the first blade, the second blade and the cutter head synchronously rotate, the dirt is blocked in the first branch pipe, the cutter head is in contact with the dirt in advance and conducts the dirt, and then the second blade is used for cutting and stirring the dirt, so that the dirt is cut into a smaller state, the connectivity of the dirt is destroyed, the dirt can smoothly circulate in the first branch pipe under the effect of self weight and the impact of water flow, and the dirt attached to the inner wall of the first branch pipe is further cut and separated through the first blade, so that the dirt in the inner wall of the first branch pipe is separated from the first branch pipe, the intractable dirt in the sewage pipe can smoothly flow in the sewage pipe without the impact of water flow and air pressure, and the time for conducting the sewage pipe and the labor intensity of personnel are reduced.
Through setting up multiunit display mechanism and mutually supporting, when the jam in the first branch pipe, in the water of first branch pipe got into different sleeves, the water pressure was exerted effort and was driven the clamp plate and is moved towards the direction of stand pipe to the clamp plate, the top sheet synchronous motion of ejector pin tip and extrusion travel switch, travel switch is triggered to travel switch on and control warning light switch on, thereby a plurality of warning lights are the lamp state of being on, the warning light of bottom is the deepest that blocks up in the first branch pipe promptly, consequently can learn the inside jam position of drain fast, it is convenient to bring for switching on the work, the time of switching on the drain consumption has been saved.
Through setting up first branch pipe and second branch pipe and mutually supporting and discharging the reposition of redundant personnel, can alleviate the water conservancy diversion pressure of first branch pipe, also be convenient for carry out classification management to the branch pipe through categorised emission simultaneously, also can be when first branch pipe is blockked up through the second branch pipe water conservancy diversion, avoid the paralysis of blowdown work, when filth extrusion filter plate, the rack moves down and drives the drive wheel and rotate, can drive the second pivot through the transmission effect of third bevel gear and fourth bevel gear, cooperation belt mechanism transmission is to the pivot, thereby drive the closing plate and revolute the pivot and rotate certain angle, make the person in charge put through with first branch pipe and second branch pipe respectively, thereby realize reposition of redundant personnel and categorised blowdown.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of a portion of the structure at the first branch of the apparatus of the present invention;
FIG. 3 is an enlarged schematic view of the internal structure of the first branch pipe of the apparatus of the present invention;
FIG. 4 is an enlarged schematic view of a portion of the structure at the vertical axis of the apparatus of the present invention;
FIG. 5 is an enlarged schematic view of a portion of the structure at the bottom shaft of the apparatus of the present invention;
FIG. 6 is an enlarged schematic view of a portion of the structure of the device of the present invention at the fan blade;
FIG. 7 is an enlarged schematic view of the internal structure of the sleeve of the device of the present invention;
FIG. 8 is an enlarged schematic view of a portion of the structure at the main pipe of the apparatus of the present invention;
fig. 9 is an enlarged schematic view of the internal structure of the main pipe of the apparatus of the present invention.
In the figure: 1. a first branch pipe; 2. a movable frame; 3. an annular pad; 4. a vertical rod; 5. a bottom shaft; 6. a vertical shaft; 7. a first blade; 8. a second blade; 9. a cutter head; 10. a connecting shaft; 11. a first sprocket; 12. a structural chamber; 13. a movable seat; 14. a movable shaft; 15. a second sprocket; 16. a belt; 17. a spline shaft; 18. a motor; 19. a spline housing; 20. a telescopic rod; 21. a sleeve; 22. a pressing plate; 23. a travel switch; 24. a warning light; 25. a guide tube; 26. a guide rod; 27. a push rod; 28. a top sheet; 29. a cross plate; 30. a horizontal axis; 31. fan blades; 32. a first bevel gear; 33. a vertical axis; 34. a second bevel gear; 35. a turntable; 36. a second branch pipe; 37. a main pipe; 38. a water permeable plate; 39. a filter plate; 40. a movable rod; 41. a spring; 42. a rack; 43. a rotating shaft; 44. a sealing plate; 45. a first rotating shaft; 46. a driving wheel; 47. a second rotating shaft; 48. a fourth bevel gear; 49. a belt mechanism; 50. a connecting plate; 51. a support block; 52. and a third bevel gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical scheme of an intelligent building water supply, drainage and sewage drainage pipeline:
including first branch pipe 1, be provided with movable frame 2 in the first branch pipe 1, the movable frame 2 lower extreme is provided with annular pad 3, annular pad 3 is located first branch pipe 1 and fixed connection is inboard at first branch pipe 1, it has a plurality of montants 4 that are circumference array distribution to run through on the movable frame 2, montant 4 lower extreme fixed connection is on annular pad 3, rotatable mounting in movable frame 2 bottom has lower shaft 5, lower shaft 5 lower extreme fixed mounting has vertical scroll 6, vertical scroll 6 upper end fixed mounting has a plurality of first blades 7 that are circumference array distribution, first blade 7 level sets up, vertical scroll 6 lower extreme fixed mounting has a plurality of second blades 8 that are circumference array distribution, the one end upward sloping setting of keeping away from vertical scroll 6 of second blade 8, the cutting edge setting of first blade 7 and second blade 8 is in limit side department, vertical scroll 6 bottom fixed mounting has tool bit 9, still include actuating mechanism, actuating mechanism installs in first branch pipe 1 and links to each other with lower shaft 5. The first branch pipe 1 is arranged as an elbow, the surfaces of the first blade 7 and the second blade 8 are both sprayed with an anti-rust coating, and the first blade 7 and the second blade 8 are not easy to rust.
When the first branch pipe 1 is blocked, the driving mechanism drives the bottom shaft 5 to rotate, and simultaneously drives the bottom shaft 5 to move downwards along the direction of the vertical rod 4, the bottom shaft 5, the vertical shaft 6, the first blade 7, the second blade 8 and the cutter head 9 synchronously rotate, the dirt is blocked in the first branch pipe 1, the cutter head 9 is in contact with the dirt in advance and conducts the dirt, the conducting port of the dirt is limited, but the interior of the first branch pipe 1 is not completely conducted, and then the second blade 8 cuts and stirs the dirt, so that the dirt is cut into a smaller state, the connectivity of the dirt is destroyed, the dirt can smoothly circulate in the first branch pipe 1 under the impact of the dead weight and the water flow, and further the dirt attached to the inner wall of the first branch pipe 1 is separated from the first branch pipe 1 through the first blade 7, so that the dirt inside the sewage pipe is not required to be in water flow and air pressure, the sewage pipe can be smoothly conducted in the sewage pipe, and the labor intensity of people is reduced.
The driving mechanism comprises a connecting shaft 10, the connecting shaft 10 is rotatably arranged on a movable frame 2, the connecting shaft 10 penetrates through the movable frame 2 and is fixedly connected with a bottom shaft 5, a first sprocket wheel 11 is fixedly arranged at the top of the connecting shaft 10, a structural chamber 12 is fixedly arranged on a first branch pipe 1, the structural chamber 12 is communicated with the inner space of the first branch pipe 1, a movable seat 13 is arranged in the structural chamber 12, a movable shaft 14 is rotatably arranged on the movable seat 13, the movable shaft 14 penetrates through the movable seat 13, a second sprocket wheel 15 is fixedly arranged at the top of the movable shaft 14, a belt 16 is arranged between the second sprocket wheel 15 and the first sprocket wheel 11, a motor 18 is fixedly arranged at the bottom of the structural chamber 12, a spline sleeve 19 is fixedly arranged at the output end of the motor 18, the spline sleeve 19 is in spline fit with the spline shaft 17, a telescopic rod 20 is fixedly arranged at the bottom of the movable seat 13, a waterproof cover is arranged at the bottom of the inner bottom of the structural chamber 12, and a waterproof cover is arranged outside the motor 18 and the telescopic rod 20.
The spline housing 19 is driven to rotate by the motor 18, the spline housing 19 drives the spline shaft 17 to synchronously rotate, the spline shaft 17, the movable shaft 14 and the second sprocket 15 synchronously rotate, the second sprocket 15 drives the first sprocket 11 to rotate by the belt 16, the connecting shaft 10 and the first sprocket 11 synchronously rotate, so that the vertical shaft 6 is driven to rotate, and meanwhile, the movable seat 13 is driven to move downwards by the telescopic rod 20, so that the spline shaft 17 can be driven to move along the direction of the spline housing 19, and the vertical shaft 6 is driven to move downwards along the direction of the vertical rod 4.
When the inside of the sewage pipes is conducted in the prior art, the blockage condition of the inside of the sewage pipes cannot be known, so that the conduction work is inconvenient, unnecessary time is consumed for conducting the sewage pipes, the sewage pipes further comprise a plurality of groups of display mechanisms, the display mechanisms are distributed in an up-down equidistant mode, and the display mechanisms are arranged on the first branch pipes 1 and are communicated with the first branch pipes 1. The display mechanism comprises a sleeve 21, the sleeve 21 is fixedly arranged on the first branch pipe 1 and is communicated with the inner space of the first branch pipe 1, a pressing plate 22 is arranged in the sleeve 21, a travel switch 23 is fixedly arranged on the sleeve 21, the travel switch 23 extends into the sleeve 21, a prompting lamp 24 is fixedly arranged at the outer end of the sleeve 21, a guide pipe 25 is fixedly arranged in the sleeve 21, a guide rod 26 is inserted into the guide pipe 25, the guide rod 26 can move along the guide pipe 25, one end of the guide rod 26 is fixedly connected with the pressing plate 22, a push rod 27 is fixedly arranged on the pressing plate 22, a top sheet 28 is fixedly arranged at the end part of the push rod 27, and the color of the prompting lamp 24 is red.
Through setting up multiunit display mechanism and mutually supporting, when the jam in the first branch pipe 1, in the water in the first branch pipe 1 got into different sleeve 21, water pressure exerted effort and drove clamp plate 22 and moved towards the direction of stand pipe 25 to clamp plate 22, the top sheet 28 of ejector pin 27 tip synchronous motion and extrusion travel switch 23, travel switch 23 is triggered, thereby travel switch 23 switch on and control warning light 24 switch on, thereby a plurality of warning lights 24 are the lamp state of being on, the warning light 24 of bottommost is the deepest of jam in the first branch pipe 1, consequently can learn the inside jam position of blow off pipeline fast, bring convenience for switching on the work, the time of switching on the blow off pipe consumption has been saved.
The other end of the first branch pipe 1 is fixedly provided with a transverse plate 29, a transverse shaft 30 is rotatably arranged on the transverse plate 29, one end of the transverse shaft 30 is fixedly provided with a plurality of fan blades 31 distributed in a circumferential array, the other end of the transverse shaft 30 is fixedly provided with a first bevel gear 32, the other end of the first branch pipe 1 is rotatably provided with a vertical shaft 33, the lower end of the vertical shaft 33 is fixedly provided with a second bevel gear 34, the second bevel gear 34 is meshed with the first bevel gear 32, and the upper end of the vertical shaft 33 is fixedly provided with a rotary table 35. The utility model also comprises a second branch pipe 36 and a main pipe 37, the second branch pipe 36 and the first branch pipe 1 are communicated with the main pipe 37 and are fixedly connected together, the second branch pipe 36 and the first branch pipe 1 are symmetrically distributed, a water permeable plate 38 is fixedly arranged in the main pipe 37, a filter plate 39 is arranged at the upper end of the water permeable plate 38, the filter plate 39 is arranged in the main pipe 37, a movable rod 40 is fixedly arranged at the bottom of the filter plate 39, the movable rod 40 penetrates through the water permeable plate 38, a spring 41 is sleeved on the movable rod 40, two ends of the spring 41 are respectively fixedly connected with the water permeable plate 38 and the filter plate 39, a rack 42 is arranged at the bottom guide rail of the movable rod 40, a rotating shaft 43 is rotatably arranged in the main pipe 37, a sealing plate 44 is arranged in the main pipe 37, the sealing plate 44 can seal the communication port between the second branch pipe 36 and the first branch pipe 1 and the main pipe 37, a connecting plate 50 is fixedly arranged on the sealing plate 44, the connecting plate 50 is fixedly connected at the upper end of the rotating shaft 43, the rotating shaft 43 penetrates through the main pipe 37, the first rotating shaft 45 is rotatably arranged in the main pipe 37, the first rotating shaft 45 penetrates through the main pipe 37, a driving wheel 46 is fixedly arranged at one end of the first rotating shaft 45, the driving wheel 46 is positioned in the main pipe 37, the driving wheel 46 is meshed with the rack 42, a supporting block 51 is fixedly arranged outside the main pipe 37, a second rotating shaft 47 is rotatably arranged on the supporting block 51, the second rotating shaft 47 penetrates through the supporting block 51, the rotating shaft further comprises a third bevel gear 52 and a fourth bevel gear 48, the third bevel gear 52 and the fourth bevel gear 48 are fixedly connected to opposite ends of the first rotating shaft 45 and the second rotating shaft 47 respectively, the third bevel gear 52 is meshed with the fourth bevel gear 48, a belt mechanism 49 is arranged at the lower ends of the second rotating shaft 47 and the first rotating shaft 45, and the second rotating shaft 47 and the rotating shaft 43 can be driven through the belt mechanism 49.
The diversion pressure of the first branch pipe 1 can be reduced by arranging the first branch pipe 1 and the second branch pipe 36 to be matched with each other for diversion discharge, the branch pipes are conveniently classified and managed through classification discharge, diversion can be carried out through the second branch pipe 36 when the first branch pipe 1 is blocked, paralysis of pollution discharge work is avoided, when the dirt presses the filter plate 39, the rack 42 moves downwards and drives the driving wheel 46 to rotate, the second rotating shaft 47 can be driven to rotate through the transmission action of the third bevel gear 52 and the fourth bevel gear 48, the belt mechanism 49 is matched to drive the sealing plate 44 to rotate around the rotating shaft 43 by a certain angle, and the main pipe 37 is respectively communicated with the first branch pipe 1 and the second branch pipe 36, so that diversion and classification pollution discharge are realized.
According to the invention, the bottom shaft 5 is driven to rotate through the driving mechanism, meanwhile, the bottom shaft 5 is driven to move downwards along the direction of the vertical rod 4, the bottom shaft 5, the vertical shaft 6, the first blade 7, the second blade 8 and the cutter head 9 are synchronously rotated, dirt is blocked in the first branch pipe 1, the cutter head 9 is in contact with the dirt in advance and conducts the dirt, the conducting port of the dirt is limited, but the interior of the first branch pipe 1 is not completely conducted, and then the second blade 8 is used for cutting and stirring the dirt, so that the dirt is cut into a smaller state, the connectivity of the dirt is destroyed, the dirt can smoothly circulate in the first branch pipe 1 under the effect of self weight and water flow impact, and further the dirt attached to the inner wall of the first branch pipe 1 is cut and separated through the first blade 7, so that the dirt on the inner wall of the first branch pipe 1 is separated from the first branch pipe 1, the refractory dirt in the sewage pipe can smoothly conduct in the sewage pipe without water flow and air pressure impact, and the time for conducting the sewage pipe can be smoothly and the labor intensity of staff are reduced.
The spline housing 19 is driven to rotate by the motor 18, the spline housing 19 drives the spline shaft 17 to synchronously rotate, the spline shaft 17, the movable shaft 14 and the second sprocket 15 synchronously rotate, the second sprocket 15 drives the first sprocket 11 to rotate by the belt 16, the connecting shaft 10 and the first sprocket 11 synchronously rotate, so that the vertical shaft 6 is driven to rotate, and meanwhile, the movable seat 13 is driven to move downwards by the telescopic rod 20, so that the spline shaft 17 can be driven to move along the direction of the spline housing 19, and the vertical shaft 6 is driven to move downwards along the direction of the vertical rod 4.
Through setting up multiunit display mechanism and mutually supporting, when the jam in the first branch pipe 1, in the water in the first branch pipe 1 got into different sleeve 21, water pressure exerted effort and drove clamp plate 22 and moved towards the direction of stand pipe 25 to clamp plate 22, the top sheet 28 of ejector pin 27 tip synchronous motion and extrusion travel switch 23, travel switch 23 is triggered, thereby travel switch 23 switch on and control warning light 24 switch on, thereby a plurality of warning lights 24 are the lamp state of being on, the warning light 24 of bottommost is the deepest of jam in the first branch pipe 1, consequently can learn the inside jam position of blow off pipeline fast, bring convenience for switching on the work, the time of switching on the blow off pipe consumption has been saved.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and scope of the invention as defined by the claims and their equivalents.