Disclosure of Invention
The invention relates to a sewage treatment device, in particular to a sewage treatment recycling device. This device can float on the surface of water, and this device can filter the absorption and handle sewage, makes waste water utilize, and this device can clean partial rubbish in the sewage.
The invention relates to a sewage treatment device, in particular to a sewage treatment recycling device which comprises a sewage filtering and sucking device, a buoyancy plate, a filtering and adsorbing device, a power output device and a water storage tank.
The upper end of the sewage filtering and sucking device is provided with a fixed plate, a sundries carrying-out device and a sewage sucking device, the fixed plate is contacted with the sundries carrying-out device, and the sewage sucking device is connected with the fixed plate;
the upper end of the sundries carrying-out device is provided with a control rod I, a control rod fixing plate I, a fixing frame, a screw rod I and a sundries box, the control rod I is fixedly connected with the control rod fixing plate I, the control rod I is positioned above the control rod fixing plate I, the control rod fixing plate I is contacted with the fixing frame, the screw rod I is hinged with the fixing frame, the screw rod I is connected with the sundries box in a threaded connection mode, the sundries box is contacted with the fixing plate, and the fixing frame is fixedly connected with the buoyancy plate;
the upper end of the sewage suction device is provided with a sewage suction pipe, a fine net cage, a coarse net cage, a net cage scraper plate, a conveying belt, a fixed belt wheel and a power belt wheel, wherein the sewage suction pipe is connected with the fine net cage and is positioned above the fine net cage, the fine net cage is positioned inside the coarse net cage, the coarse net cage is contacted with the net cage scraper plate, the contact surface is the outer surface of the coarse net cage, the net cage scraper plate is hinged with the conveying belt, the conveying belt is connected with the fixed belt wheel, the conveying belt is connected with the power belt wheel, the fixed belt wheel is hinged with the fixed plate, the power belt wheel is hinged with the fixed plate, and the power belt wheel is connected with the power output device;
the upper end of the filtering and adsorbing device is provided with a sewage inlet pipe, filter cotton, a fixed filter screen and an activated carbon box, the sewage inlet pipe is connected with a sewage suction pipe, the sewage inlet pipe is connected with the activated carbon box and is positioned on the left side of the activated carbon box, the sewage inlet pipe is contacted with the filter cotton and is positioned on the left side of the filter cotton, the filter cotton is contacted with the fixed filter screen, the fixed filter screen is fixedly connected with the activated carbon box, the activated carbon box is connected with the buoyancy plate, and the activated carbon box is positioned above the buoyancy plate;
the upper end of the power output device is provided with a power supply device, a power transmission device and a power output mechanism, the power supply device is connected with the power transmission device, the power transmission device is connected with the power output mechanism, the power supply device is connected with the buoyancy plate and is positioned above the buoyancy plate, the power transmission device is connected with the buoyancy plate and is positioned above the buoyancy plate, the power output mechanism is connected with the buoyancy plate and is positioned above the buoyancy plate;
the upper end of the power supply device is provided with a first motor support, a first motor and a first belt wheel, the first motor support is connected with the buoyancy plate, the first motor support is positioned above the buoyancy plate, the first motor support is connected with the first motor, the first motor support is positioned below the first motor, and the first motor is connected with the first belt wheel;
the upper end of the power transmission device is provided with a transmission device fixing plate, a cam, a belt wheel II, a rotary rod, a first conveyor belt, a belt wheel III and a second conveyor belt, the cam is hinged with the transmission device fixing plate, the belt wheel II is hinged with the transmission device fixing plate, the rotary rod is hinged with the transmission device fixing plate, the belt wheel III is hinged with the transmission device fixing plate, the cam is connected with a belt wheel II, the cam is contacted with the rotary rod, the belt wheel II is connected with the first conveyor belt, the first conveyor belt is connected with the belt wheel III, the belt wheel III is connected with the second conveyor belt, the second conveyor belt is connected with the first belt wheel;
the upper end of the power output mechanism is provided with filter paper, a first water pipe, a first check valve, a pressure tank, a drawing plate, a drawing rod, a second check valve and a second water pipe, the filter paper is connected with the first water pipe, the first water pipe is connected with the first check valve, the first water pipe is connected with the pressure tank, the pressure tank is contacted with the drawing plate, the drawing plate is connected with the drawing rod, the drawing rod is hinged with a rotating rod, the second water pipe is connected with the pressure tank, the second water pipe is connected with the second check valve, the second water pipe is connected with an activated carbon tank, and the first water pipe is connected with a water storage tank;
the upper end of the first check valve is provided with a valve body, a roller and a spring, the valve body is in contact with the roller, the roller is in contact with the spring, and the spring is in contact with the valve body;
the upper end of the water storage tank is provided with a water source sedimentation tank, a power supply device, a water outlet device, a sedimentation tank bracket and a third conveyor belt, the water source sedimentation tank is connected with the water outlet device, the power supply device is connected with the water outlet device, the sedimentation tank bracket is connected with the water source sedimentation tank, the third conveyor belt is connected with the power supply device, and the third conveyor belt is connected with the water outlet device;
the upper end of the water source settling tank is provided with a water tank, a rubber sheet, a screw rod II and a screw rod control block, the water tank is connected with the rubber sheet, the rubber sheet is fixedly connected with the screw rod II, the screw rod II is fixedly connected with the screw rod control block, and the water tank is in threaded connection with the screw rod II;
the upper end of the power supply device is provided with a motor bracket II, a motor II and a belt wheel IV, the motor bracket II is connected with the water source settling tank, the motor bracket II is connected with the motor II, the motor II is connected with the belt wheel IV, and the belt wheel IV is connected with the conveying belt three-phase;
the upper end of the water outlet device is provided with a water pipe III, a pressure barrel, a liquid pushing plate, a screw rod III and a belt wheel V, the water pipe III is connected with the pressure barrel, the pressure barrel is in contact with the liquid pushing plate, the liquid pushing plate is connected with the screw rod III, the screw rod III is in threaded connection with the belt wheel V, the belt wheel V is connected with the pressure barrel, and the belt wheel V is in three-phase connection with the conveyor belt;
the sewage filtering and sucking device is connected with the buoyancy plate, the sewage filtering and sucking device is located below the buoyancy plate, the filtering and adsorbing device is connected with the buoyancy plate, the filtering and adsorbing device is located above the buoyancy plate, the filtering and adsorbing device is connected with the sewage filtering and sucking device, the filtering and adsorbing device is located above the sewage filtering and sucking device, the power output device is connected with the buoyancy plate, the power output device is located above the buoyancy plate, the power output device is connected with the filtering and adsorbing device, the power output device is located on the right side of the filtering and adsorbing device, the water storage tank is connected with the filtering and adsorbing device, the water storage tank is located above the filtering and adsorbing device, the water storage tank is connected with the power output device, and the water storage tank is located above the power output device.
As a further optimization of the technical scheme, the upper end of the pressure barrel of the sewage treatment recycling device is provided with four water inlets which are respectively arranged on four surfaces of the pressure barrel.
As a further optimization of the technical scheme, the third conveyor belt, the rubber sheet, the second conveyor belt, the first conveyor belt and the conveyor belt of the sewage treatment recycling device are all made of rubber materials.
As a further optimization of the technical scheme, the four filtering and adsorbing devices and the four power output devices of the sewage treatment and recycling device are respectively positioned on the four side surfaces of the water storage tank.
As a further optimization of the technical scheme, a sundry box is arranged below each conveying belt of the sewage treatment and recycling device.
As a further optimization of the technical scheme, two cams are arranged on each transmission device fixing plate of the sewage treatment recycling device.
As a further optimization of the technical scheme, the cam, the second belt wheel, the first belt wheel, the fixed belt wheel, the power belt wheel, the third belt wheel, the fourth belt wheel and the fifth belt wheel of the sewage treatment recycling device are all made of 38 chromium silicon materials.
The sewage treatment and recycling device has the beneficial effects that:
the invention relates to a sewage treatment device, in particular to a sewage treatment recycling device. This device can float on the surface of water, and this device can filter the absorption and handle sewage, makes waste water utilize, and this device can clean partial rubbish in the sewage.
Detailed Description
The first embodiment is as follows:
the present invention is described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the technical problem to be solved by the present invention is to provide a sewage treatment recycling device, which includes a sewage filtering and suction device 1, a buoyancy plate 2, a filtering and adsorption device 3, a power output device 4, and a water storage tank 5.
The upper end of the sewage filtering and sucking device 1 is provided with a fixed plate 1-1, a sundries carrying-out device 1-2 and a sewage sucking device 1-3, the fixed plate 1-1 is contacted with the sundries carrying-out device 1-2, the sewage sucking device 1-3 is connected with the fixed plate 1-1, and the fixed plate 1-1 plays a role in fixing;
the upper end of the sundries carrying-out device 1-2 is provided with a control rod I1-2-1, a control rod fixing plate I1-2-2, a fixing frame 1-2-3, a screw rod I1-2-4 and a sundries box 1-2-5, the control rod I1-2-1 is fixedly connected with the control rod fixing plate I1-2-2, the control rod I1-2-1 plays a role in providing power, the control rod fixing plate I1-2-2 is fixedly connected to play a role in fixing, the control rod I1-2-1 is positioned above the control rod fixing plate I1-2-2, the control rod fixing plate I1-2-2 is in contact with the fixing frame 1-2-3, the screw rod I1-2-4 is hinged with the fixing frame 1-2-3, the first screw rod 1-2-4 is connected with the sundries box 1-2-5 in a threaded manner, the first screw rod 1-2-4 plays a role in transferring motion, the sundries box 1-2-5 is in contact with the fixed plate 1-1, and the fixed frame 1-2-3 is fixedly connected with the buoyancy plate 2;
the upper end of the sewage suction device 1-3 is provided with a sewage suction pipe 1-3-1, a fine net cage 1-3-2, a coarse net cage 1-3-3, a net cage scraper 1-3-4, a conveying belt 1-3-5, a fixed belt wheel 1-3-6 and a power belt wheel 1-3-7, the sewage suction pipe 1-3-1 is connected with the fine net cage 1-3-2, the fine net cage 1-3-2 plays a filtering role, the sewage suction pipe 1-3-1 is positioned above the fine net cage 1-3-2, the fine net cage 1-3-2 is positioned inside the coarse net cage 1-3-3, the coarse net cage 1-3-3 plays a filtering role, the coarse net cage 1-3-3 is contacted with the net cage scraper 1-3-4, the net cage scrapers 1-3-4 play a role in cleaning the coarse net cage 1-3-3, the contact surface is the outer surface of the coarse net cage 1-3-3, the net cage scrapers 1-3-4 are hinged with the conveying belts 1-3-5, the conveying belts 1-3-5 play a role in transmitting motion, the conveying belts 1-3-5 are connected with the fixed pulleys 1-3-6, the fixed pulleys 1-3-6 play a role in fixing, the conveying belts 1-3-5 are connected with the power pulleys 1-3-7, the fixed pulleys 1-3-6 are hinged with the fixed plates 1-1, the fixed plates 1-1 play a role in fixing, the power pulleys 1-3-7 are hinged with the fixed plates 1-1, and the fixed plates 1-1 play a role in fixing, the power belt wheels 1-3-7 are connected with a power output device 4 through a belt;
the upper end of the filtering and adsorbing device 3 is provided with a sewage inlet pipe 3-1, filter cotton 3-2, a fixed filter screen 3-3 and an activated carbon box 3-4, the sewage inlet pipe 3-1 is connected with a sewage suction pipe 1-3-1, the sewage inlet pipe 3-1 is connected with the activated carbon box 3-4, and the sewage inlet pipe 3-1 is positioned at the left of the activated carbon box 3-4, the sewage inlet pipe 3-1 is contacted with the filter cotton 3-2, the sewage inlet pipe 3-1 is positioned at the left of the filter cotton 3-2, the filter cotton 3-2 is contacted with the fixed filter screen 3-3, the fixed filter screen 3-3 is fixedly connected with the activated carbon box 3-4, the activated carbon box 3-4 is connected with the buoyancy plate 2, and the activated carbon box 3-4 is positioned above the buoyancy plate 2;
the upper end of the power output device 4 is provided with a power supply device 4-1, a power transmission device 4-2 and a power output mechanism 4-3, the power supply device 4-1 is connected with the power transmission device 4-2, the power transmission device 4-2 is connected with the power output mechanism 4-3, the power supply device 4-1 is connected with the buoyancy plate 2, the power supply device 4-1 is positioned above the buoyancy plate 2, the power transmission device 4-2 is connected with the buoyancy plate 2, the power transmission device 4-2 is positioned above the buoyancy plate 2, the power output mechanism 4-3 is connected with the buoyancy plate 2, and the power output mechanism 4-3 is positioned above the buoyancy plate 2;
the upper end of the power supply device 4-1 is provided with a motor support I4-1-1, a motor I4-1-2 and a belt pulley I4-1-3, the motor support I4-1-1 is connected with the buoyancy plate 2, the buoyancy plate 2 plays a role in fixing, the motor support I4-1-1 is positioned above the buoyancy plate 2, the motor support I4-1-1 is connected with the motor I4-1-2, the motor support I4-1-1 plays a role in fixing, the motor support I4-1-1 is positioned below the motor I4-1-2, and the motor I4-1-2 is connected with the belt pulley I4-1-3;
the upper end of the power transmission device 4-2 is provided with a transmission device fixing plate 4-2-1, a cam 4-2-2, a belt pulley II 4-2-3, a rotating rod 4-2-4, a transmission belt I4-2-5, a belt pulley III 4-2-6 and a transmission belt II 4-2-7, the cam 4-2-2 is hinged with the transmission device fixing plate 4-2-1, the belt pulley II 4-2-3 is hinged with the transmission device fixing plate 4-2-1, the rotating rod 4-2-4 is hinged with the transmission device fixing plate 4-2-1, the belt pulley III 4-2-6 is hinged with the transmission device fixing plate 4-2-1, the cam 4-2-2 is connected with the belt pulley II 4-2-3, the cam 4-2-2 is in contact with the rotating rod 4-2-4, the belt wheel II 4-2-3 is connected with the conveyor belt I4-2-5, the conveyor belt I4-2-5 is connected with the belt wheel III 4-2-6, the belt wheel III 4-2-6 is connected with the conveyor belt II 4-2-7, the conveyor belt II 4-2-7 is connected with the belt wheel I4-1-3, and the rotating rod 4-2-4 is hinged with the power output mechanism 4-3;
the upper end of the power output mechanism 4-3 is provided with filter paper 4-3-1, a water pipe I4-3-2, a check valve I4-3-3, a pressure tank 4-3-4, a pull plate 4-3-5, a pull rod 4-3-6, a check valve II 4-3-7, a water pipe II 4-3-8, the filter paper 4-3-1 is connected with the water pipe I4-3-2, the water pipe I4-3-2 is connected with the check valve I4-3-3, the water pipe I4-3-2 is connected with the pressure tank 4-3-4, the pressure tank 4-3-4 is in contact with the pull plate 4-3-5, the pull plate 4-3-5 is connected with the pull rod 4-3-6, the drawing rod 4-3-6 is hinged with the rotating rod 4-2-4, the water pipe II 4-3-8 is connected with the pressure tank 4-3-4, the water pipe II 4-3-8 is connected with the one-way valve II 4-3-7, the water pipe II 4-3-8 is connected with the activated carbon tank 3-4, and the water pipe I4-3-2 is connected with the water storage tank 5;
the upper end of the one-way valve I4-3-3 is provided with a valve body 4-3-1, a roller 4-3-3-2 and a spring 4-3-3-3, the valve body 4-3-1 is in contact with the roller 4-3-3-2, the roller 4-3-3-2 is in contact with the spring 4-3-3-3, and the spring 4-3-3-3 is in contact with the valve body 4-3-3-1;
the upper end of the water storage tank 5 is provided with a water source sedimentation tank 5-1, a power supply device 5-2, a water outlet device 5-3, a sedimentation tank bracket 5-4 and a conveyor belt III 5-5, wherein the water source sedimentation tank 5-1 is connected with the water outlet device 5-3, the power supply device 5-2 is connected with the water outlet device 5-3, the sedimentation tank bracket 5-4 is connected with the water source sedimentation tank 5-1, the conveyor belt III 5-5 is connected with the power supply device 5-2, and the conveyor belt III 5-5 is connected with the water outlet device 5-3;
the upper end of the water source settling tank 5-1 is provided with a water tank 5-1-1, a rubber sheet 5-1-2, a screw rod II 5-1-3 and a screw rod control block 5-1-4, the water tank 5-1-1 is connected with the rubber sheet 5-1-2, the rubber sheet 5-1-2 is fixedly connected with the screw rod II 5-1-3, the screw rod II 5-1-3 is fixedly connected with the screw rod control block 5-1-4, and the water tank 5-1-1 is in threaded connection with the screw rod II 5-1-3;
the upper end of the power supply device 5-2 is provided with a motor bracket II 5-2-1, a motor II 5-2-2 and a belt wheel IV 5-2-3, the motor bracket II 5-2-1 is connected with a water source sedimentation tank 5-1, the motor bracket II 5-2-1 is connected with the motor II 5-2-2, the motor II 5-2-2 is connected with the belt wheel IV 5-2-3, and the belt wheel IV 5-2-3 is connected with a conveying belt III 5-5;
the upper end of the water outlet device 5-3 is provided with a water pipe III 5-3-1, a pressure barrel 5-3-2, a liquid push plate 5-3-3, a screw rod III 5-3-4 and a belt wheel V5-3-5, the water pipe III 5-3-1 is connected with the pressure barrel 5-3-2, the pressure barrel 5-3-2 is in contact with the liquid pushing plate 5-3-3, the liquid pushing plate 5-3-3 is connected with the screw rod III 5-3-4, the screw rod III 5-3-4 is in threaded connection with the belt wheel V5-3-5, the belt wheel V5-3-5 is connected with the pressure barrel 5-3-2, and the belt wheel V5-3-5 is connected with the conveyor belt III 5-5;
the sewage filtering and sucking device 1 is connected with the buoyancy plate 2, the sewage filtering and sucking device 1 is positioned below the buoyancy plate 2, the filtering and adsorbing device 3 is connected with the buoyancy plate 2, and the filtering and adsorbing device 3 is positioned above the connection of the buoyancy plate 2, the filtering and adsorbing device 3 is connected with the sewage filtering and sucking device 1, and the filtering and adsorbing device 3 is positioned above the sewage filtering and adsorbing device 1, the power output device 4 is connected with the buoyancy plate 2, and the power output device 4 is positioned above the buoyancy plate 2, the power output device 4 is connected with the filtering and adsorbing device 3, and the power output device 4 is positioned at the right side of the filtering and adsorbing device 3, the water storage tank 5 is connected with the filtering and adsorbing device 3, and the water storage tank 5 is positioned above the filtering and adsorbing device 3, the water storage tank 5 is connected with the power output device 4, and the water storage tank 5 is positioned above the power output device 4.
The second embodiment is as follows:
the following describes the embodiment with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the embodiment further describes the embodiment, in which the upper end of the pressure tank 5-3-2 is provided with four water inlets respectively formed on four sides of the pressure tank 5-3-2.
The third concrete implementation mode:
the following describes the embodiment with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the embodiment further describes the embodiment, and the materials of the third conveyor belt 5-5, the rubber sheet 5-1-2, the second conveyor belt 4-2-7, the first conveyor belt 4-2-5, and the first conveyor belt 1-3-5 are all made of rubber.
The fourth concrete implementation mode:
the present embodiment will be described with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the present embodiment further describes the first embodiment, in which four filtering and adsorbing devices 3 and four power output devices 4 are respectively located on four side surfaces of the water storage tank 5.
The fifth concrete implementation mode:
the present embodiment will be described with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and will be further described, wherein a glove box 1-2-5 is disposed below each of the conveyor belts 1-3-5.
The sixth specific implementation mode:
the present embodiment is described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the present embodiment further describes the first embodiment, in which two cams 4-2-2 are provided on each transmission fixing plate 4-2-1.
The seventh embodiment:
the embodiment is described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, and the embodiment further describes the embodiment, wherein the cam 4-2-2, the pulley two 4-2-3, the pulley one 4-1-3, the fixed pulley 1-3-6, the power pulley 1-3-7, the pulley three 4-2-6, the pulley four 5-2-3, and the pulley five 5-3-5 are all made of 38 chromium silicon.
The working principle of the invention is as follows:
a sewage treatment recycling device works on the principle that a motor I4-1-2 is started, a motor I4-1-2 rotates to drive a belt wheel I4-1-3 to rotate, a belt wheel I4-1-3 rotates to drive a belt wheel II 4-2-3 to rotate through a conveyor belt I4-2-5, a belt wheel II 4-2-3 rotates to drive a cam 4-2-2 to rotate, a belt wheel II 4-2-3 rotates to drive a belt wheel III 4-2-6 to rotate through a conveyor belt II 4-2-7, a belt wheel III 4-2-6 rotates to drive another cam to rotate, the two cams rotate to push a rotating rod 4-2-4 to swing, the rotating rod 4-2-4 swings to drive a drawing rod 4-3-6 to move, the movement of the pulling rod 4-3-6 drives the movement of the pulling plate 4-3-5, the movement of the pulling plate 4-3-5 is matched with the movement of the pressure box 4-3-4, so that the sewage flows through the sewage suction pipe 1-3-1 through the thick net box 1-3-3 and the thin net box 1-3-2, enters the filtering and adsorbing device 3 through the sewage inlet pipe 3-1, is further filtered through the filter cotton 3-2 and the fixed net 3-3, is adsorbed by the active carbon in the active carbon box 3-4, enters the pressure box 4-3-4 through the one-way valve II 4-3-7 and the water pipe II 4-3-8, is matched with the pressure box 4-3-4 through the movement of the pulling plate 4-3-5, and the liquid in the pressure box 4-3-4 passes through the water pipe I4-3-2 and the one-way valve II A first 4-3-3, further filtering the water by filter paper 4-3-1 and entering a water source precipitation tank 5-1, precipitating the liquid in the water tank 5-1-1, starting a second motor 5-2-2, rotating the second motor 5-2-2 to drive a fourth belt wheel 5-2-3 to rotate, rotating the fourth belt wheel 5-2-3 through a third conveyor belt 5-5 to drive a fifth belt wheel 5-3-5 to rotate, driving the fifth belt wheel 5-3-5 to rotate to be in threaded fit with a third screw rod 5-3-4 to drive the third screw rod 5-3-4 to move, driving a liquid push plate 5-3-3 to move by the motion of the third screw rod 5-3-4, and when the 5-3-3 moves, the liquid in the water tank 5-1-1 passes through a feed barrel 5-3-2 arranged on the pressure barrel 5-3-2 The water gap enters the pressure barrel 5-3-2 to be pushed out by the pushing plate 5-3-3, liquid flows out through the water pipe III 5-3-1 to be used for people, the screw control block 5-1-4 rotates to drive the screw II 5-1-3 to rotate, the screw II 5-1-3 rotates to be in threaded fit with the water tank 5-1-1 to realize up-and-down movement, the screw II 5-1-3 moves up and down to drive the rubber sheet 5-1-2 to move up and down to realize water outflow with impurities precipitated in the water tank 5-1-1, the belt pulley I4-1-3 rotates to drive the power belt pulley 1-3-7 to rotate through the conveying belt, the power belt pulley 1-3-7 rotates to drive the conveying belt 1-3-5 to move, the transmission belt 1-3-5 moves to drive the net cage scraper 1-3-4 to move, the net cage scraper 1-3-4 contacts with the coarse net cage 1-3-3, impurities attached to the coarse net cage 1-3-3 are cleaned, and falls into a sundries box 1-2-5 arranged below the conveying belt 1-3-5, the control rod I1-2-1 is shaken, the control rod I1-2-1 drives the control rod fixing plate I1-2-2 to rotate, the control rod fixing plate I1-2-2 rotates to drive the screw rod I1-2-4 to rotate, the screw rod I1-2-4 rotates to be in threaded fit with the sundry box 1-2-5, the sundry box 1-2-5 moves up and down, and accordingly sundry discharge is achieved.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.