Air purification is with absorptive detector of multi-angle
Technical Field
The invention relates to the technical field of detectors, in particular to a multi-angle absorption detector for air purification.
Background
Air purification can provide clean and safe air for users, and common air purification technologies are: adsorption technology, negative (positive) ion technique, catalysis technique, photocatalyst technique, superstructure light mineralization technique, HEPA high efficiency filtration technique, electrostatic precipitation technique etc. the detector can detect whole air purification equipment, but the seepage condition often can appear among the air purification testing process, consequently need carry out inside improvement to it.
The detector on the market, air purification equipment detector does not have certain angle adjustment mechanism, and air purification adsorbs the angle too singlely, influences air purification check out test set's work efficiency easily, and staff's internal maintenance gets up also inconveniently, and the outside does not have certain connecting device protection mechanism to the port pollution condition appears easily, and the internal connection twines in the outside of equipment easily, and the problem of collision damage appears easily in key equipment.
Disclosure of Invention
The invention aims to provide a multi-angle absorption detector for air purification, which aims to solve the problems that the air purification equipment detector in the market provided by the background art is not provided with a certain angle adjusting mechanism, the air purification adsorption angle is too single, the working efficiency of the air purification detection equipment is easily influenced, the inside of a worker is inconvenient to maintain, the outside is not provided with a certain connecting equipment protecting mechanism, so that the port pollution condition is easily caused, the internal connection is easily wound on the outside of the equipment, and the key equipment is easily collided and damaged.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-angle absorption detector for air purification comprises a main body and a movable column, wherein a connecting mechanism is connected inside the main body, the main body is movably connected with the connecting mechanism, sliding chute channels are arranged on two sides of the connecting mechanism, which are close to the main body, and the main body is fixedly connected with the sliding chute channels, a limiting column is arranged inside each sliding chute channel, and the sliding chute channels are movably connected with the limiting column, an angle rod is connected to the top end of the connecting mechanism, a vertical structure is arranged between the angle rod and the connecting mechanism, a mounting plate is fixed at the top of the angle rod, the main body is movably connected with the mounting plate, absorption holes are connected on two sides of the main body, which are close to the mounting plate, and are fixedly connected with the mounting plate, an adjusting mechanism is arranged on the top end of the absorption holes, which are close to the mounting plate, and the mounting plate, the utility model discloses a fixed mounting structure, including mounting panel, movable post, coupling mechanism, and connecting mechanism, the movable post is fixed in adjustment mechanism's bottom, adjustment mechanism is close to the inboard of mounting panel and is provided with air purification board, and closely laminates between the inside inner wall of mounting panel and air purification board's the inside inner wall, coupling mechanism's bottom mounting has the shrouding, and is the vertical structure between coupling mechanism and the shrouding, coupling mechanism is close to the both sides of shrouding and is provided with the hinge post, and is swing joint between shrouding and the hinge post, the.
Preferably, the chute channel is movably connected with the mounting plate, and the main body and the mounting plate form a sliding structure through the chute channel.
Preferably, the bottom end of the baffle is connected with a fixing mechanism, the main body is fixedly connected with the fixing mechanism, the bottom end of the fixing mechanism is connected with the base, the main body and the base are of a vertical structure, the hinge column is movably connected with the baffle, and the sealing plate is of a clamping structure through the hinge column and the baffle.
Preferably, adjustment mechanism includes absorption head, filter screen, horizontal pole and draw-in groove post, adjustment mechanism's inside top is connected with the absorption head, and closely laminates between adjustment mechanism's the inside inner wall and the inside inner wall of absorption head, the bottom of absorption head is provided with the filter screen, the bottom of absorbing the head and holding close to the filter screen is connected with the horizontal pole, and is the vertical structure between filter screen and the horizontal pole, the angle pole includes pick-up plate, limit board, apron, regulation post and wire casing board, the inside middle part of angle pole is connected with the regulation post, and the both sides that the angle pole is close to the regulation post are provided with wired frid, and adjust and be swing joint between post and the frid, the top of regulation post install the apron, and be the vertical structure between apron and the regulation post, the top that the regulation post is close to the apron is fixed with the.
Preferably, the both sides that the filter screen is close to the horizontal pole are fixed with the draw-in groove post, and be swing joint between horizontal pole and the draw-in groove post to the filter screen passes through the horizontal pole and constitutes to dismantle the structure with the draw-in groove post constitution.
Preferably, the top end of the detection plate is provided with a limit plate, the detection plate is fixedly connected with the limit plate, the angle rod is movably connected with the adjusting column, and the angle rod and the detection plate form a rotating structure through the adjusting column.
Preferably, coupling mechanism includes cardboard, bolt post, buckle post and bolt dish, coupling mechanism's inside middle part is connected with the buckle post, and is threaded connection between coupling mechanism and the buckle post, be provided with the bolt dish around the buckle post, and be swing joint between coupling mechanism and the bolt dish, the both sides of the bolt dish that the buckle post is close to are fixed with the bolt post, and be threaded connection between bolt post and the bolt dish, fixing mechanism includes clamp plate post, extrusion post, even board and draw-in groove board, fixing mechanism's inside middle part is connected with even board, and is fixed connection between fixing mechanism and the even board, fixing mechanism is close to the inside middle part both sides of even board and is provided with the extrusion post, and even board both sides that are close to the extrusion post are provided with the pressure plate post to fixed connection between clamp plate post and the extrusion post.
Preferably, the upper side and the lower side of the bolt disc close to the buckling column are connected with clamping plates, the inner wall of the connecting mechanism and the inner wall of the clamping plates are tightly attached, and the clamping plates form a buckling structure through the buckling column and the bolt disc.
Preferably, the bottom of the overpressure plate column is provided with a clamping groove plate, the fixing mechanism is fixedly connected with the clamping groove plate, and the pressing plate column is of an elastic structure through the extrusion column and the clamping groove plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the main body of the invention is a sliding structure through the sliding chute channel and the mounting plate, and the sealing plate is a clamping structure through the hinge post and the baffle plate, the mounting plate on the main body is manually adjusted so that the absorption hole and the adjusting mechanism can slide between the sliding chute channels, the sliding absorption hole and the adjusting mechanism can be fixed between the main body and the sliding chute channels through the limiting post between the main body and the sliding chute channels, the purification detection equipment in the main body can be extended, the movable post and the air purification plate can be clamped between the main body and the sliding chute channels, the internal structure of the purification detection equipment can be protected, the protective layer can be formed on the surface of the main body, the movable post and the air purification plate can be clamped between the main body and the connecting mechanism in a sliding way, the baffle plate can be clamped between the main body and the sealing plate through the movement of the baffle plate between the main body and the hinge post, and the connecting line, can be with its jointing equipment interface block between baffle and shrouding, can prevent that external contaminated air from getting into between baffle and the shrouding to can protect air purification check out test set's connection port.
2. The filter screen is of a detachable structure formed by the cross rod and the clamping groove column, the clamping groove column moves between the cross rod and the adjusting mechanism, so that the filter screen between the adjusting mechanism and the absorption head can be loosened, air purification dust between the filter screen and the absorption head can be cleaned through detachment, the dust can be prevented from entering between the main body and the absorption holes through the adjusting mechanism and the absorption head, the connection between the absorption heads of the absorption hole boxes can be isolated by workers, the filter screen and the absorption head can belong to an independent purification space mechanism, the porous work of air purification detection equipment can be facilitated, and the working efficiency of the air purification detection equipment can be improved.
3. The angle rod is of a rotating structure formed by the adjusting column and the detecting plate, the detecting plate and the limiting plate can rotate and move between the main body and the angle rod by manually pushing the adjusting column on the angle rod, the cover plate and the wire slot plate on the angle rod can be randomly rotated and adjusted, the absorbing hole and the adjusting mechanism can slide between the sliding groove channels by adjusting the mounting plate on the main body, the rotating adjusting column can be adjusted to the top end of the main body, air purification detection equipment between the main body and the angle rod can be rotatably adjusted, and better absorption detection of the air purification detection equipment between the main body and the angle rod is facilitated.
4. The clamping plate is of a clamping structure through the clamping column and the bolt disc, the bolt disc can be clamped between the clamping plate and the connecting mechanism through the movement of the clamping column between the bolt discs, the detection equipment can be fixed between the clamping plate and the connecting mechanism, the air purification and detection equipment can be firmly combined, the air purification and detection equipment is convenient for workers to carry out internal maintenance on the air purification and detection equipment, the special air purification and detection equipment can be installed and clamped between the main body and the connecting mechanism, so that air purification solution can be prevented from leaking into the main body, parts of the air purification and detection equipment can be protected independently, and the service life of air purification and detection can be prolonged.
5. The pressing plate column is of an elastic structure formed by the extrusion column and the clamping groove plate, the pressing plate column can be fastened and fixed between the clamping groove plate and the connecting plate through the extrusion column between the base and the fixing mechanism, the air purification detection equipment connecting line can be installed between the pressing plate column and the connecting plate, the port extrusion folding phenomenon of the equipment connecting line between the base and the fixing mechanism can be prevented, the elastic collision capacity between the base and the fixing mechanism can be enhanced, a certain installation space can be kept between the base and the fixing mechanism, the use space of internal parts of the main body can be enlarged, and the internal stability of the main body can be enhanced.
Drawings
FIG. 1 is a schematic structural diagram of a multi-angle absorption detector for air purification according to the present invention;
FIG. 2 is a schematic view of an angle bar structure of a multi-angle absorption detector for air purification according to the present invention;
FIG. 3 is a schematic structural view of a fixing mechanism of the multi-angle absorption detector for air purification according to the present invention;
FIG. 4 is a schematic view of a connecting mechanism of the multi-angle absorption detector for air purification according to the present invention;
FIG. 5 is a schematic structural diagram of an adjusting mechanism of the multi-angle absorption detector for air purification according to the present invention.
In the figure: 1. a main body; 2. a chute channel; 3. a limiting column; 4. an absorption hole; 5. mounting a plate; 6. an adjustment mechanism; 601. an absorption head; 602. a filter screen; 603. a cross bar; 604. a slot clamping column; 7. a movable post; 8. an air purification plate; 9. an angle lever; 901. detecting a plate; 902. limiting a plate; 903. a cover plate; 904. an adjustment column; 905. a wire chase board; 10. a connecting mechanism; 1001. clamping a plate; 1002. a bolt column; 1003. a buckling column; 1004. a bolt disk; 11. closing the plate; 12. a hinge post; 13. a baffle plate; 14. a fixing mechanism; 1401. a platen post; 1402. extruding the column; 1403. connecting plates; 1404. a slot clamping plate; 15. a base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-5, the present invention provides a technical solution: a multi-angle absorption detector for air purification comprises a main body 1, a sliding chute 2, a limiting column 3, an absorption hole 4, a mounting plate 5, an adjusting mechanism 6, an absorption head 601, a filter screen 602, a cross bar 603, a slot clamping column 604, a movable column 7, an air purification plate 8, an angle rod 9, a detection plate 901, a limiting plate 902, a cover plate 903, an adjusting column 904, a slot panel 905, a connecting mechanism 10, a clamping plate 1001, a bolt column 1002, a clamping column 1003, a bolt disc 1004, a sealing plate 11, a hinge column 12, a baffle 13, a fixing mechanism 14, a pressure plate column 1401, an extrusion column 1402, a connecting plate 1403, a slot plate 1404 and a base 15, wherein the main body 1 is internally connected with the connecting mechanism 10, the main body 1 is movably connected with the connecting mechanism 10, the sliding chute 2 is arranged on two sides of the connecting mechanism 10 close to the main body 1, the main body 1 is fixedly connected with the sliding chute 2, the sliding chute 2 is internally provided, the sliding chute channel 2 is movably connected with the limiting column 3, the top end of the connecting mechanism 10 is connected with an angle rod 9, a vertical structure is arranged between the angle rod 9 and the connecting mechanism 10, the top of the angle rod 9 is fixed with a mounting plate 5, the main body 1 is movably connected with the mounting plate 5, two sides of the main body 1 close to the mounting plate 5 are connected with absorption holes 4, the absorption holes 4 are fixedly connected with the mounting plate 5, the top end of the absorption holes 4 close to the mounting plate 5 is provided with an adjusting mechanism 6, the mounting plate 5 is movably connected with the adjusting mechanism 6, the sliding chute channel 2 is movably connected with the mounting plate 5, the main body 1 is in a sliding structure with the mounting plate 5 through the sliding chute channel 2, the absorption holes 4 and the adjusting mechanism 6 can slide between the sliding chute channel 2 through manually adjusting the mounting plate 5 on the main body 1, and the limiting column 3 between the main body 1 and the, the sliding absorption hole 4 and the adjusting mechanism 6 can be fixed between the main body 1 and the chute channel 2 to help to extend the purification detection equipment inside the main body 1, so that the movable column 7 and the air purification plate 8 can be clamped between the main body 1 and the chute channel 2, which is beneficial to protecting the internal structure of the purification detection equipment, a mounting protective layer can be formed on the surface of the purification detection equipment, the movable column 7 and the air purification plate 8 can be clamped between the main body 1 and the connecting mechanism 10 in a sliding manner, the movable column 7 is fixed at the bottom end of the adjusting mechanism 6, the inner side of the adjusting mechanism 6 close to the mounting plate 5 is provided with the air purification plate 8, the inner wall of the mounting plate 5 is tightly attached to the inner wall of the air purification plate 8, the bottom end of the connecting mechanism 10 is fixed with a closing plate 11, a vertical structure is formed between the connecting mechanism 10 and the closing plate 11, hinge columns 12, the closing plate 11 is movably connected with the hinge post 12, the two sides of the closing plate 11 close to the hinge post 12 are connected with baffle plates 13, the bottom ends of the baffle plates 13 are connected with fixing mechanisms 14, the main body 1 is fixedly connected with the fixing mechanism 14, the bottom end of the fixing mechanism 14 is connected with a base 15, the main body 1 and the base 15 are of a vertical structure, the hinge column 12 and the baffle 13 are movably connected, the closing plate 11 is formed into a clamping structure by the hinge post 12 and the baffle 13, and through the movement of the baffle 13 between the main body 1 and the hinge post 12, thereby the baffle 13 can be clamped between the main body 1 and the sealing plate 11, the connecting line of the air purifying equipment can be protected between the main body 1 and the sealing plate 11, the interface of the connecting equipment can be clamped between the baffle 13 and the sealing plate 11, the air pollution can be prevented from entering between the baffle 13 and the closing plate 11, so that the connecting port of the air purification detection equipment can be protected; the adjusting mechanism 6 comprises an absorbing head 601, a filter screen 602, a cross rod 603 and a slot column 604, the absorbing head 601 is connected to the top end of the inside of the adjusting mechanism 6, the inner wall of the inside of the adjusting mechanism 6 is tightly attached to the inner wall of the absorbing head 601, the filter screen 602 is arranged at the bottom end of the absorbing head 601, the bottom of the absorbing head 601 close to the filter screen 602 is connected with the cross rod 603, the filter screen 602 is vertical to the cross rod 603, the slot column 604 is fixed at the two sides of the filter screen 602 close to the cross rod 603, the cross rod 603 is movably connected with the slot column 604, the filter screen 602 is detachable from the slot column 604 through the cross rod 603, the filter screen 602 between the adjusting mechanism 6 and the absorbing head 601 can be loosened through the movement of the slot column 604 between the cross rod 603 and the adjusting mechanism 6, the air purification dust between the filter screen 602 and the absorbing head 601, can prevent dust from entering between the main body 1 and the absorption holes 4 through the adjusting mechanism 6 and the absorption head 601, and is helpful for workers to isolate the connection between the absorption holes 4 and the absorption heads 601, thereby being an independent purification space mechanism between the two, being beneficial to the porous work of the air purification detection equipment, and being capable of improving the work efficiency of the air purification detection equipment, the angle rod 9 comprises a detection plate 901, a limiting plate 902, a cover plate 903, an adjusting column 904 and a slot plate 905, the middle part inside the angle rod 9 is connected with the adjusting column 904, the two sides of the angle rod 9 close to the adjusting column 904 are provided with the slot plate 905, the adjusting column 904 is movably connected with the slot plate 905, the top end of the adjusting column 904 is provided with the cover plate 903, the vertical structure is arranged between the cover plate 903 and the adjusting column 904, the detection plate 901 is fixed on the top of the adjusting column 904 close to the cover plate 903, the top ends of the detection, the detecting plate 901 is fixedly connected with the limiting plate 902, the angle rod 9 is movably connected with the adjusting column 904, the angle rod 9 and the detecting plate 901 form a rotating structure, the adjusting column 904 on the angle rod 9 is manually pushed so that the detecting plate 901 and the limiting plate 902 can rotate and move between the main body 1 and the angle rod 9, the cover plate 903 and the wire groove plate 905 on the angle rod 9 can be randomly rotated and adjusted, the absorbing hole 4 and the adjusting mechanism 6 can slide between the sliding groove channels 2 by adjusting the mounting plate 5 on the main body 1, the rotating adjusting column 904 can be adjusted to the top end of the main body 1, the air purification detecting device between the main body 1 and the angle rod 9 can be rotatably adjusted, and better absorption detection of the air purification detecting device between the main body 1 and the angle rod 9 is facilitated; the connecting mechanism 10 comprises a clamping plate 1001, a bolt column 1002, a clamping column 1003 and a bolt disc 1004, the clamping column 1003 is connected to the middle of the inside of the connecting mechanism 10, the connecting mechanism 10 is in threaded connection with the clamping column 1003, the bolt disc 1004 is arranged on the periphery of the clamping column 1003, the connecting mechanism 10 is movably connected with the bolt disc 1004, the bolt column 1002 is fixed to two sides of the bolt disc 1004 close to the clamping column 1003, the bolt column 1002 is in threaded connection with the bolt disc 1004, the clamping plate 1001 is connected to the upper side and the lower side of the bolt disc 1004 close to the clamping column 1003, the inner wall of the connecting mechanism 10 is tightly attached to the inner wall of the clamping plate 1001, the clamping plate 1001 and the bolt disc 1004 form a clamping structure through the clamping column 1003, the bolt disc 1004 can be clamped between the clamping plate 1001 and the connecting mechanism 10 through the movement of the clamping column 1003 between the bolt disc 1004, and the detection equipment can be fixed between the clamping plate 1001 and the connecting mechanism, the air purification and detection device can be firmly combined, the internal maintenance of the air purification and detection device is convenient for workers, the special air purification and detection device can be installed and buckled between the main body 1 and the connecting mechanism 10, so that air purification solution can be prevented from leaking into the main body 1, parts of the air purification and detection device can be independently protected, the service life of the air purification and detection can be prolonged, the fixing mechanism 14 comprises a pressing plate column 1401, an extrusion column 1402, a connecting plate 1403 and a clamping groove plate 1404, the connecting plate 1403 is connected to the middle part of the inside of the fixing mechanism 14, the fixing mechanism 14 is fixedly connected with the connecting plate 1403, the extrusion columns 1402 are arranged on two sides of the middle part of the inside of the fixing mechanism 14, which are close to the connecting plate 1403, the pressing plate columns 1401 are arranged on two sides of the connecting plate 1403, the pressing plate column 1401 is fixedly connected with the extrusion column 1402, the clamping groove plate 1404 is arranged at the bottoms of the, the fixing mechanism 14 is fixedly connected with the card slot plate 1404, the pressing plate column 1401 is in an elastic structure through the extrusion column 1402 and the card slot plate 1404, the pressing plate column 1401 can be clamped and fixed between the card slot plate 1404 and the connecting plate 1403 through the extrusion column 1402 between the base 15 and the fixing mechanism 14, the connecting line of the air purification detection equipment can be installed between the pressing plate column 1401 and the connecting plate 1403, the phenomenon that the port of the equipment connecting line between the base 15 and the fixing mechanism 14 is extruded and folded can be prevented, the elastic collision capacity between the base 15 and the fixing mechanism 14 is enhanced, a certain installation space can be kept between the base 15 and the fixing mechanism 14, the use space of internal parts of the main body 1 can be enlarged, and the stability of the inside of the main body is enhanced; the working principle of the embodiment is as follows: the multi-angle absorption detector for air purification can clamp the baffle 13 between the main body 1 and the closing plate 11 through the movement of the baffle 13 between the main body 1 and the hinge post 12, can protect the connecting line of the air purification equipment between the main body 1 and the closing plate 11, can clamp the interface of the connecting equipment between the baffle 13 and the closing plate 11, can prevent external polluted air from entering between the baffle 13 and the closing plate 11, can protect the connecting port of the air purification detection equipment, can clamp and fix the pressure plate post 1401 between the clamping groove plate 1404 and the connecting plate 1403 through the extrusion post 1402 between the base 15 and the fixing mechanism 14, can install the connecting line of the air purification detection equipment between the pressure plate post 1401 and the connecting plate 1403, can prevent the port extrusion folding phenomenon of the equipment connecting line between the base 15 and the fixing mechanism 14, and is favorable for enhancing the elastic collision capacity between the base 15 and the fixing mechanism 14, can keep certain installation space between the base 15 and the fixing mechanism 14, thereby enlarging the use space of the internal parts of the main body 1 and enhancing the stability of the inside, can loosen the filter screen 602 between the adjusting mechanism 6 and the absorption head 601 by moving between the cross bar 603 and the adjusting mechanism 6 through the slot column 604, can clean the air purification dust between the filter screen 602 and the absorption head 601 by disassembling, can prevent the dust from entering between the main body 1 and the absorption hole 4 through the adjusting mechanism 6 and the absorption head 601, is helpful for the staff to isolate the connection between the absorption hole 4 and the absorption head 601, thereby being capable of leading the two to belong to an independent purification space mechanism, being beneficial to the porous work of the air purification detection equipment, can improve the work efficiency of the air purification detection equipment, can clamp the bolt plate 1004 between the clamping plate 1001 and the connecting mechanism 10 through the movement of the clamping column 1003 between the bolt plate 1004, the detection device can be fixed between the clamping plate 1001 and the connecting mechanism 10, the air purification and detection device can be firmly combined, the internal maintenance of the detection device can be conveniently carried out by a worker, a special air purification detection device can be installed and clamped between the main body 1 and the connecting mechanism 10, so that the air purification solution can be prevented from leaking into the main body 1, the parts of the air purification detection device can be independently protected, the service life of the air purification detection can be prolonged, the absorption hole 4 and the adjusting mechanism 6 can slide between the sliding chute channel 2 by manually adjusting the installation plate 5 on the main body 1, the sliding absorption hole 4 and the adjusting mechanism 6 can be fixed between the main body 1 and the sliding chute channel 2 by the limiting column 3 between the main body 1 and the sliding chute channel 2, the extension of the purification detection device in the main body 1 is facilitated, so that the movable column 7 and the air purification plate 8 can be clamped between the main body 1 and the sliding chute channel 2, is favorable for protecting the internal structure of the purification detection equipment, can form a protective layer on the surface of the purification detection equipment, the movable post 7 and the air purification plate 8 can be slidably engaged between the main body 1 and the connection mechanism 10, the detection plate 901 and the limit plate 902 can be rotationally moved between the main body 1 and the angle lever 9 by manually pushing the adjustment column 904 on the angle lever 9, the cover plate 903 and the slot plate 905 on the angle lever 9 can be arbitrarily rotationally adjusted, and the absorption holes 4 and the adjustment mechanism 6 can be slid between the chute paths 2 by adjusting the mounting plate 5 on the main body 1, the adjustment post 904 after the rotation can be adjusted to the top end of the main body 1, can carry out rotation regulation to the air purification check out test set between main part 1 and the angle pole 9, be favorable to the better absorption of the air purification check out test set between main part 1 and the angle pole 9 to detect, this is the theory of operation of this air purification is with the absorptive detector of multi-angle.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.