阅读说明：本技术 一种餐厨垃圾处理装置 (Kitchen waste treatment device ) 是由 潘小莉 李冠 罗少梅 贾向东 陈荣 黄博 谭安林 刘永富 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种餐厨垃圾处理装置,涉及垃圾处理技术领域,解决餐厨垃圾不能有效分离的技术问题,本发明包括依次衔接的装料箱、输送带、过滤机构、挤压机构、烘干机构,挤压机构的下方设有油水分离机构；装料箱内设有转动架、连接转动架的安装座、驱动转动架旋转的第一电机,转动架的外围设有多个水平布置的搅拌杆,装料箱的顶部设有驱动安装座上下运动及水平运动的第一驱动机构,装料箱的一侧设有第一收集箱。本发明还公开了一种内燃机摩擦及附件损失测量装置。本发明通过将餐厨垃圾放入装料箱,通过第一电机带动转动架旋转使搅拌杆将塑料袋捞出,再通过第一驱动机构移动转动架到第一收集箱,从而实现对塑料袋进行有效分离,以减少污染。(The invention discloses a kitchen waste treatment device, relates to the technical field of waste treatment, and solves the technical problem that kitchen waste cannot be effectively separated; the charging box is internally provided with a rotating frame, a mounting seat connected with the rotating frame and a first motor driving the rotating frame to rotate, the periphery of the rotating frame is provided with a plurality of stirring rods which are horizontally arranged, the top of the charging box is provided with a first driving mechanism driving the mounting seat to move up and down and horizontally, and one side of the charging box is provided with a first collecting box. The invention also discloses a device for measuring friction and accessory loss of the internal combustion engine. According to the kitchen waste separating device, kitchen waste is placed into the charging box, the first motor drives the rotating frame to rotate, so that the stirring rod enables a plastic bag to be fished out, and the rotating frame is moved to the first collecting box through the first driving mechanism, so that the plastic bag is effectively separated, and pollution is reduced.)

1. The kitchen waste treatment device is characterized by comprising a charging box (1), a conveying belt (2), a filtering mechanism (3), an extruding mechanism (4) and a drying mechanism (5) which are sequentially connected, wherein an oil-water separation mechanism (6) is arranged below the extruding mechanism (4); the automatic feeding device is characterized in that a vertically arranged rotating frame (7), a mounting seat connected with the rotating frame (7) and a first motor (M1) driving the rotating frame (7) to rotate are arranged in the charging box (1), a plurality of horizontally arranged stirring rods (9) are arranged on the periphery of the rotating frame (7), a first driving mechanism driving the mounting seat to move up and down and horizontally is arranged at the top of the charging box (1), and a first collecting box (10) is arranged on one side of the charging box (1).

2. The kitchen waste treatment device according to claim 1, wherein the first driving mechanism comprises a first lead screw (11) which is vertically arranged, a second lead screw (12) and a third lead screw (13) which are horizontally arranged, the second lead screw (12) is connected with a third motor (M3), the third lead screw (13) is connected with a fourth motor (M4), the second lead screw (12) and the third lead screw (13) are jointly in threaded connection with a mobile platform, the mobile platform is provided with a second motor (M2) which is connected with the top of the first lead screw (11), the first lead screw (11) is in threaded connection with the mounting seat, and a guide rod is arranged between the mobile platform and the mounting seat.

3. The kitchen waste treatment device according to claim 1, characterized in that the bottom of the charging box (1) is provided with a discharge port corresponding to the input end of the conveyor belt (2), and the discharge port is provided with a gate (17).

4. The kitchen waste treatment device according to claim 1, wherein the conveyor belt (2) is an inclined upward structure and comprises a driving roller (18), a driven roller (19) and a conveyor belt (20) connecting the driving roller (18) and the driven roller (19), the surface of the conveyor belt (20) is provided with storage grooves (21) which are arranged at intervals, and the driving roller (18) is connected with a fifth motor (M5).

5. The kitchen waste treatment device according to claim 1, wherein the filtering mechanism (3) comprises a vibrating screen (23) which is obliquely arranged, and a second collecting box (24) corresponding to the lower end of the vibrating screen (23), the vibrating screen (23) is provided with a ninth motor (M9) and a tenth motor (M10) at the front and at the back, a first diversion trench (25) is arranged under the vibrating screen (23), and an output port of the first diversion trench (25) is positioned above an input port of the squeezing mechanism (4).

6. The kitchen waste treatment device according to claim 1, characterized in that the extrusion mechanism (4) comprises an extrusion pipe (26), an extrusion screw is arranged in the extrusion pipe (26), one end of the extrusion pipe (26) is provided with a drive, a sixth motor (M6) for rotating the extrusion screw is provided with a discharge hole at the other end, an input port is arranged at the top of the extrusion pipe (26), a slit extending axially along the extrusion pipe (26) is arranged at the bottom of the extrusion pipe (26), a second diversion trench (28) is arranged below the extrusion pipe (26), and an output port of the second diversion trench (28) is positioned above the oil-water separation mechanism (6).

7. The kitchen waste treatment device according to claim 1, wherein the drying mechanism (5) comprises a drying cylinder (29), a spiral blade (30) is arranged in the drying cylinder (29), a feeding cylinder (31) is arranged at one end of the drying cylinder (29), a second driving mechanism for driving the drying cylinder (29) to rotate is arranged at the other end of the drying cylinder (29), one end of the feeding cylinder (31) extends into the drying cylinder (29), a feeding screw rod is arranged in the feeding cylinder (31), a seventh motor (M7) connected with the feeding screw rod is arranged at the other end of the feeding cylinder (31), an input port is arranged at the top of the feeding cylinder (31), and a hot air blower (43) is arranged at one end, close to the feeding cylinder (31), of the drying cylinder (29).

8. The kitchen waste treatment device according to claim 7, wherein the second driving mechanism comprises an eighth motor (M8), a rotating shaft of the eighth motor (M8) is provided with a driving gear (33), a driven gear (34) meshed with the driving gear is arranged on the periphery of the drying drum (29), a supporting seat (35) is arranged at the bottom of the drying drum (29), supporting wheels (36) rotatably connected are respectively arranged on two sides of the supporting seat (35), and the drying drum (29) is supported by the supporting wheels (36).

9. The kitchen waste treatment device according to claim 1, wherein the oil-water separation mechanism (6) comprises a tank body (37), at least two separation grooves (38) are arranged in the tank body (37), the bottoms of the separation grooves (38) are communicated, the side wall of the last separation groove (38) is provided with a water outlet pipe (39), the side walls of the other separation grooves (38) are provided with oil outlet pipes (40), and the first separation groove (38) is provided with an input pipe (41) connected with the extrusion mechanism (4).

10. The kitchen waste treatment device according to claim 1, further comprising a control module electrically connected to the conveyor belt (2), the filtering mechanism (3), the squeezing mechanism (4), the drying mechanism (5), the first motor (M1), and the first driving mechanism.

Technical Field

The invention relates to the technical field of garbage treatment, in particular to a kitchen garbage treatment device.

Background

The kitchen waste refers to waste generated in activities such as daily life, food processing, food service, unit meal supply and the like of residents, and comprises discarded vegetable leaves, leftovers, fruit peels, eggshells, tea leaves, bones and the like, and the kitchen waste is mainly sourced from household kitchens, restaurants, dining halls, markets and other industries related to food processing.

Most of the kitchen waste is directly transported to a garbage site for landfill, plastic bags are usually carried in the kitchen waste, and if the plastic bags cannot be effectively separated, a large amount of pollution can be caused by direct landfill.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and aims to provide a kitchen waste treatment device capable of separating plastic bags.

The technical scheme of the invention is as follows: a kitchen waste treatment device comprises a charging box, a conveying belt, a filtering mechanism, an extrusion mechanism and a drying mechanism which are sequentially connected, wherein an oil-water separation mechanism is arranged below the extrusion mechanism; the automatic feeding device is characterized in that a vertically-arranged rotating frame, a mounting seat connected with the rotating frame and a first motor driving the rotating frame to rotate are arranged in the charging box, a plurality of horizontally-arranged stirring rods are arranged on the periphery of the rotating frame, a first driving mechanism driving the mounting seat to move up and down and horizontally is arranged at the top of the charging box, and a first collecting box is arranged on one side of the charging box.

As a further improvement, the first driving mechanism comprises a first lead screw which is vertically arranged, and a second lead screw and a third lead screw which are horizontally arranged, the second lead screw is connected with a third motor, the third lead screw is connected with a fourth motor, the second lead screw and the third lead screw are in common threaded connection with a mobile platform, the mobile platform is provided with a second motor which is connected with the top of the first lead screw, the first lead screw is in threaded connection with the mounting seat, and a guide rod is arranged between the mobile platform and the mounting seat.

Further, the bottom of the charging box is provided with a discharge port corresponding to the input end of the conveying belt, and the discharge port is provided with a gate.

Further, the conveyer belt is the structure of slope upwards arranging, including drive roll, driven voller and with the conveyer belt that drive roll, driven voller are connected, the surface of conveyer belt is equipped with the interval arrangement puts the thing groove, the drive roll is connected with the fifth motor.

Furthermore, the filtering mechanism comprises a vibrating screen which is obliquely arranged and a second collecting box corresponding to the lower end of the vibrating screen, a ninth motor and a tenth motor are arranged in front of and behind the vibrating screen, a first diversion trench is arranged under the vibrating screen, and an output port of the first diversion trench is positioned above an input port of the extruding mechanism.

Further, the extrusion mechanism includes the extrusion pipe, the intraductal extrusion screw that is equipped with of extrusion, the one end of extrusion pipe is equipped with the drive extrusion screw pivoted sixth motor, and the other end is equipped with the discharge gate, the top of extrusion pipe is equipped with the input port, the bottom of extrusion pipe is equipped with the edge extrusion pipe axial extension's slot, the below of extrusion pipe is equipped with the second guiding gutter, the delivery outlet of second guiding gutter is located oil-water separation mechanism's top.

Further, the drying mechanism comprises a drying cylinder, spiral blades are arranged in the drying cylinder, a feeding cylinder is arranged at one end of the drying cylinder, a second driving mechanism for driving the drying cylinder to rotate is arranged at the other end of the drying cylinder, one end of the feeding cylinder extends into the drying cylinder, a feeding screw rod is arranged in the feeding cylinder, a seventh motor connected with the feeding screw rod is arranged at the other end of the feeding cylinder, an input port is formed in the top of the feeding cylinder, and an air heater is arranged at one end, close to the feeding cylinder, of the drying cylinder.

Further, the second driving mechanism comprises an eighth motor, a rotating shaft of the eighth motor is provided with a driving gear, a driven gear meshed with the driving gear is arranged on the periphery of the drying cylinder, a supporting seat is arranged at the bottom of the drying cylinder, supporting wheels which are connected in a rotating mode are arranged on two sides of the supporting seat respectively, and the supporting wheels support the drying cylinder.

Furthermore, the oil-water separation mechanism comprises a groove body, at least two separation grooves are arranged in the groove body, the bottoms of the separation grooves are communicated, a water outlet pipe is arranged on the side wall of the last separation groove, oil outlet pipes are arranged on the side walls of the other separation grooves, and an input pipe connected with the extrusion mechanism is arranged in the first separation groove.

Further, the device also comprises a control module which is electrically connected with the conveying belt, the filtering mechanism, the extruding mechanism, the drying mechanism, the first motor and the first driving mechanism.

Advantageous effects

Compared with the prior art, the invention has the advantages that:

according to the kitchen waste separating device, kitchen waste is placed into the charging box, the first motor drives the rotating frame to rotate, so that the stirring rod enables a plastic bag to be fished out, the rotating frame is moved to the first collecting box through the first driving mechanism, and the plastic bag is collected into the first collecting box through manual work and the like, so that the plastic bag is effectively separated, and pollution is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a turret according to the present invention;

FIG. 3 is a schematic view of the structure of the conveyor belt of the present invention;

FIG. 4 is a schematic structural view of a filtering mechanism, an extruding mechanism and a drying mechanism in the present invention;

FIG. 5 is a schematic structural view of an oil-water separating mechanism according to the present invention;

FIG. 6 is a circuit diagram of a control chip according to the present invention;

FIG. 7 is a circuit diagram of a wiring pin header of the present invention;

FIG. 8 is a circuit diagram of a power supply regulator module according to the present invention;

FIG. 9 is a circuit diagram of an SWD interface in the present invention;

FIG. 10 is a circuit diagram of a crystal oscillator according to the present invention;

FIG. 11 is a reset circuit diagram of the present invention;

FIG. 12 is a circuit diagram of a steering engine module according to the present invention;

FIG. 13 is a circuit diagram of a stepper motor control module of the present invention;

fig. 14 is a circuit diagram of a dc motor control module according to the present invention.

Wherein: 1-charging box, 2-conveying belt, 3-filtering mechanism, 4-extruding mechanism, 5-drying mechanism, 6-oil-water separating mechanism, 7-rotating frame, M1-first motor, 9-stirring rod, 10-first collecting box, 11-second screw rod, 12-third screw rod, 13-fourth screw rod, M3-third motor, M4-fourth motor, M2-second motor, 17-gate, 18-driving roller, 19-driven roller, 20-conveying belt, 21-storage tank, M5-fifth motor, 23-vibrating screen, M9-ninth motor, M10-tenth motor, 24-second collecting box, 25-first diversion groove, 26-extruding pipe, M6-sixth motor, 28-second diversion groove, 29-drying cylinder, 30-spiral blade, 31-feeding cylinder, M8-eighth motor, 33-driving gear, 34-driven gear, 35-supporting seat, 36-supporting wheel, 37-groove body, 38-separating groove, 39-water outlet pipe, 40-oil outlet pipe, 41-input pipe, M7-seventh motor and 43-hot air blower.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-5, a kitchen waste treatment device comprises a charging box 1, a conveying belt 2, a filtering mechanism 3, an extruding mechanism 4 and a drying mechanism 5 which are connected in sequence, wherein an oil-water separation mechanism 6 is arranged below the extruding mechanism 4. The charging box 1 is internally provided with a vertically arranged rotating frame 7, a mounting seat connected with the rotating frame 7 and a first motor M1 driving the rotating frame 7 to rotate, the periphery of the rotating frame 7 is provided with a plurality of horizontally arranged stirring rods 9, the top of the charging box 1 is provided with a first driving mechanism driving the mounting seat to move up and down and horizontally, the first motor M1 is mounted on the mounting seat, the rotating frame 7 is rotatably mounted on the mounting seat, and one side of the charging box 1 is provided with a first collecting box 10. Through putting into loading box 1 with kitchen garbage, drive the turret 7 rotation through first motor M1 and make puddler 9 fish out the plastic bag, rethread first actuating mechanism removes turret 7 to first collecting box 10, collects the plastic bag in the first collecting box through modes such as freely dropping or manual work to the realization is effectively separated the plastic bag, with the pollution abatement.

In this embodiment, the first driving mechanism includes a first lead screw 11 vertically arranged, and a second lead screw 12 and a third lead screw 13 horizontally arranged, the second lead screw 12 is connected with a third motor M3, the third lead screw 13 is connected with a fourth motor M4, the second lead screw 12 and the third lead screw 13 are jointly in threaded connection with a mobile station, the mobile station is provided with a second motor M2 connected with the top of the first lead screw 11, the first lead screw 11 is in threaded connection with a mounting seat, and a guide rod is arranged between the mobile station and the mounting seat. Meanwhile, the third motor M3 and the fourth motor M4 are controlled to synchronously rotate to drive the mobile station to horizontally move, and the second motor M2 is controlled to rotate to drive the mounting seat to vertically move. The bottom of the charging box 1 is provided with a discharge hole corresponding to the input end of the conveying belt 2, and the discharge hole is provided with a gate 17. After the plastic bag is fished out by the stirring rod 9, the gate 17 is opened, so that the kitchen waste flows onto the conveyer belt 2.

Conveyer belt 2 is the structure of slope upwards arranging, including drive roll 18, driven voller 19 and with the conveyer belt 20 that drive roll 18, driven voller 19 are connected, the surface of conveyer belt 20 is equipped with the interval arrangement put the thing groove 21, puts the thing groove 21 and can guarantee that kitchen garbage transports smoothly, and drive roll 18 is connected with fifth motor M5.

The filtering mechanism 3 comprises a vibrating screen 23 which is obliquely arranged and a second collecting box 24 corresponding to the lower end of the vibrating screen 23, the vibrating screen 23 is located below the upper end of the conveying belt 2, the vibrating screen 23 is driven by a ninth motor M9 and a tenth motor M10, the ninth motor M9 and the tenth motor M10 are steering engines, a first diversion trench 25 is arranged under the vibrating screen 23, and an output port of the first diversion trench 25 is located above an input port of the extruding mechanism 4. The kitchen waste falls onto the vibrating screen 23 from the conveying belt 2, the kitchen waste with larger size falls into the second collecting box 24, and the kitchen waste with smaller size falls into the first diversion trench 25 and the squeezing mechanism 4.

The extruding mechanism 4 comprises an extruding pipe 26, an extruding screw is arranged in the extruding pipe 26, the extruding screw is a screw with variable pitch, one end of the extruding pipe 26 is provided with a sixth motor M6 for driving the extruding screw to rotate, the other end of the extruding pipe is provided with a discharge hole, the size of the discharge hole is smaller than the pipe diameter of the extruding pipe 26, the top of the extruding pipe 26 is provided with an input port, kitchen waste falls into the input port from the first diversion groove 25, the bottom of the extruding pipe 26 is provided with a slit extending along the axial direction of the extruding pipe 26, the width of the slit is 0.1-0.3mm, the slit is used for oil-water outflow, a second diversion groove 28 is arranged below the extruding pipe 26 and used for receiving oil-water, and the output port of the second diversion groove 28 is positioned above the oil-water separating mechanism 6.

Drying mechanism 5 includes drying cylinder 29, be equipped with spiral leaf 30 in the drying cylinder 29, drying cylinder 29's one end is equipped with feed cylinder 31, the other end is equipped with the second actuating mechanism of drive drying cylinder 29 rotation, feed cylinder 31's one end stretches into in drying cylinder 29, be equipped with the feeding screw in the feed cylinder 31, feed cylinder 31's the other end is equipped with the seventh motor M7 of connecting the feeding screw, feed cylinder 31's top is equipped with the input port, the kitchen garbage that the extruding pipe 26 came out falls in the input port, and carry in drying cylinder 29 through the feeding screw in the feed cylinder 31, drying cylinder 29 is close to feed cylinder 31's one end and is equipped with air heater 43, the fan in the air heater 43 passes through alternating current motor M11 drive.

The second driving mechanism comprises an eighth motor M8, a driving gear 33 is arranged on a rotating shaft of the eighth motor M8, a driven gear 34 engaged with the driving gear is arranged on the periphery of the drying drum 29, a supporting seat 35 is arranged at the bottom of the drying drum 29, supporting wheels 36 in rotating connection are respectively arranged on two sides of the supporting seat 35, and the drying drum 29 is supported by the supporting wheels 36. The eighth motor M8 drives the drying drum 29 to rotate, and the kitchen waste is dried and conveyed out under the action of the spiral blade 30 and the hot air blower 43.

The oil-water separation mechanism 6 comprises a groove body 37, at least two separation grooves 38 are arranged in the groove body 37, the bottoms of the separation grooves 38 are communicated, the side wall of the last separation groove 38 is provided with a water outlet pipe 39, the side walls of the other separation grooves 38 are provided with oil outlet pipes 40, and the first separation groove 38 is provided with an input pipe 41 connected with the extrusion mechanism 4. A certain amount of water is added into the groove body 37 in advance, oil water flows into the first separation groove 38 from the second diversion groove 28 through the input pipe 41, the oil floats on the water surface and is blocked by each separation groove 38, the water flows to the last separation groove 38 from the bottom and flows out from the water outlet pipe 39, and when the oil amount in the other separation grooves 38 reaches the position of the oil outlet pipe 40, the oil water flows out from the oil outlet pipe 40, so that the oil water separation is realized.

In this embodiment, the first motor M1 is a dc motor, the second motor M2 is a steering engine, the third motor M3 and the fourth motor M4 are stepping motors, the fifth motor M5, the sixth motor M6, the seventh motor M7 and the eighth motor M8 are dc motors, the ninth motor M9 and the tenth motor M10 are steering engines, and the eleventh motor M11 is an ac motor.

Referring to fig. 6-14, the apparatus further includes a control module electrically connected to the conveyor 2, the filtering mechanism 3, the squeezing mechanism 4, the drying mechanism 5, the first motor M1, and the first driving mechanism.

The control module comprises a stepping motor control module, a direct current motor control module, a power supply voltage stabilizing module, a starting mode selection circuit, an SWD interface circuit, a crystal oscillator circuit, a reset circuit, a steering engine module, a heat source module, an indication module and a Micro-USB module. The power supply voltage stabilizing module comprises 220V alternating-current voltage input terminals 1 and 2, a power switch S1, a fuse F1, a transformer T1, a rectifier bridge D1, capacitors C1 and C2 and an electrolytic capacitor EC1, and the power supply voltage stabilizing module plays a role in filtering and finally outputs 12V direct-current voltage. A 12V power supply is input into the voltage conversion chip U2 and is converted into a 5V voltage, a 12V power supply is input into the voltage conversion chip U1 and is converted into a 3.3V voltage, and the capacitors C3, C4, C5 and C6 play a role in filtering; the indicating module comprises a resistor R8 and an indicator light LED1 which are connected in series, wherein one end of the resistor R8 is connected with 12V voltage, and the other end of the indicator light LED1 is connected with the ground.

The control module comprises a main control chip U7 and a reset circuit connected to one I/O pin of a control chip U7, when 3.3V in the reset circuit is powered on, C7 is charged, voltage appears on a 10K resistor R7 to reset the U7 chip, after a few milliseconds, C7 is full, current on the 10K resistor R7 is reduced to 0, the voltage is also 0, so that the U7 chip enters a working state, during the working period, K1 is pressed down, C7 is discharged, voltage appears on the 10K resistor R7 to reset the U7 chip, K1 is loosened, C7 is charged again, after a few milliseconds, the U7 chip enters the working state, the resistor R6 is a current-limiting resistor, and the control chip is an STM32F103C8T6 single chip; the starting mode selection circuit is characterized in that a P3 is a starting mode selection pin, resistors R3 and R4 are current-limiting resistors, the circuit selects BOOT0 to be 1 and BOOT1 to be 0 by default, a SWD downloading mode is set, program downloading is carried out through connection of a J1 and a serial port, and a system of a control chip U7 can be upgraded quickly; the Micro-USB module consists of a USB-mrico socket, resistors R2 and R5 and a pull-up resistor R1, and can supply power to the U7 and communicate with a PC end; the stepping motor control module comprises a first motor driving chip B1 and a second motor driving chip B2. The signal input of the driving chips of the 2 motors is correspondingly connected to the I/O pin of the control chip U7, the control output pin of the first motor driving chip B1 is correspondingly connected to the third motor M3, and the control output pin of the second stepping motor driving chip B2 is correspondingly connected to the fourth motor M4. The direct current motor control module comprises a first direct current motor drive chip U3, a second direct current motor drive chip U4 and a third direct current motor drive chip U6, signal inputs of drive chips of 3 motors are correspondingly connected to an I/O pin of the control chip U7, a control output pin of the first direct current motor drive chip U3 is correspondingly connected to a fifth motor M5 and a sixth motor M6, a control output pin of the second direct current motor drive chip U4 is correspondingly connected to a seventh motor M7 and an eighth motor M8, and a control output pin of the third direct current motor drive chip U6 is correspondingly connected to the first motor M1; PWM input signal pins of a second motor M2, a ninth motor M9 and a tenth motor M10 of the steering engine module are correspondingly connected to an I/O pin of a control chip U7; the heat source module is mainly used for adjusting the heating degree of the resistance wire and connecting a pin of the heat source module to an I/O pin of a control chip U7; the crystal oscillator circuit module comprises two parts, wherein one part forms an external high-speed clock, the other part forms an external low-speed clock of 8MHz of U7 and provides an accurate system clock, the other part forms an external low-speed clock of 32.768KHz of U7 and comprises capacitors of Tang C9, C10 and crystal oscillator Y1, the left pin and the right pin of I/O providing accurate timing service are composed of pin banks P1 and P2, signal interaction and setting with the outside are realized, and an alternating current motor M11 is connected with the power supply voltage stabilizing module.

The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.