阅读说明：本技术 一种肉类腐败变质智能化检测装置 (Meat spoilage intelligent detection device ) 是由 唐后福 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种肉类腐败变质智能化检测装置,包括检测器本体,所述检测器本体内设有蓄电池装置,所述检测器本体外侧表面上设有控制器,所述检测器本体内部下方设有定量抽气装置,所述定量抽气装置上方设有自动检测装置；通过电动伸缩杆带动抽气活塞的移动,并通过单向气阀一和单向气阀二的作用,从而简单快速进行定量收集,通过圆形分气罩和分气管的作用,使收集到的空气充分的与检测圆盘内的水进行接触,从而将硫化氢与水进行充分的融合,通过PH值传感器进行检测水溶液的PH值,从而得到硫化氢的排放量进行确定肉类变质程度,使装置对肉类检测的更加精准。(The invention discloses an intelligent detection device for meat spoilage, which comprises a detector body, wherein a storage battery device is arranged in the detector body, a controller is arranged on the surface of the outer side of the detector body, a quantitative air extraction device is arranged below the inside of the detector body, and an automatic detection device is arranged above the quantitative air extraction device; drive the removal of bleeding the piston through electric telescopic handle, and through the effect of one-way pneumatic valve one and one-way pneumatic valve two, thereby simply carry out the ration fast and collect, through the effect of circular gas distribution cover and gas distribution pipe, make the air of collecting abundant with detect the water in the disc and contact, thereby carry out abundant integration with hydrogen sulfide and water, detect the pH value of aqueous solution through the pH value sensor, thereby the discharge that obtains hydrogen sulfide confirms meat degree of deterioration, make the device detect the meat more accurate.)

1. The intelligent detection device for meat spoilage comprises a detector body (1), wherein a storage battery device is arranged in the detector body (1), and a controller (2) is arranged on the surface of the outer side of the detector body (1), and is characterized in that a quantitative air extraction device is arranged below the inside of the detector body (1), and an automatic detection device is arranged above the quantitative air extraction device;

the automatic detection device comprises a detector body (1), wherein an annular rotating seat (3) is arranged at the upper end inside the detector body (1), the annular rotating seat (3) is in threaded connection with the detector body (1), two rotating flanges (4) are installed on two sides of the upper side of the annular rotating seat (3), an annular rotating limiting groove (5) is formed in the annular rotating seat (3), a detection disc (6) is movably installed in the annular rotating seat (3), a limiting flange (7) is installed at the center of the surface of the outer side of the detection disc (6), the limiting flange (7) is movably connected with the annular rotating limiting groove (5), a water line (8) is arranged on the surface of the inner side of the detection disc (6), an air inlet through pipe (9) is installed at the center of the inside of the detection disc (6), and an annular sealing gasket (10) is installed at the upper end and the lower end of the, a detection tube (11) is arranged on one side of the lower surface of the detection disc (6), an upper baffle (12) is movably arranged at the upper end inside the detection tube (11), two connecting rods (13) are arranged on two sides of the lower surface of the upper baffle (12), a lower annular baffle (14) is arranged at the lower ends of the two connecting rods (13), a sealing gasket (15) is arranged on the inner side surface of the lower annular baffle (14), a probe fixing frame (16) is arranged above the inside of the detector body (1), a PH value sensor probe (17) is arranged on the probe fixing frame (16), the PH value sensor probe (17) is inserted into the lower annular baffle (14), a water absorption sponge cushion (18) is arranged on the outer side surface of the PH value sensor probe (17), a PH value sensor (19) is installed in the center of the inside of the detector body (1), and a detection disc blocking cover device is installed on the detection disc (6);

the detection disc blocking cover device comprises a detection disc blocking cover (20) arranged above the inner part of a detection disc (6), the detection disc blocking cover (20) is in threaded connection with the detection disc (6), a rotating lug (21) is arranged at the center of the upper surface of the detection disc blocking cover (20), an exhaust safety valve (22) is arranged on one side of the upper surface of the detection disc blocking cover (20), a circular gas distribution cover (23) is arranged at the center of the lower surface of the detection disc blocking cover (20), a plurality of gas distribution pipes (24) are arranged below the circular gas distribution cover (23), the gas distribution pipes (24) are distributed in a circular shape, the gas distribution pipes (24) are uniformly distributed on the circular gas distribution cover (23), one-way valves are arranged on the gas distribution pipes, a gas inlet through hole (25) is formed at the center of the lower surface of the circular gas distribution cover (23), and the gas inlet through hole (25) is movably connected with a gas inlet through pipe (9), the air inlet through hole (25) and the air inlet through pipe (9) are sealed through an annular sealing gasket (10).

2. The intelligent detection device for meat spoilage according to claim 1, wherein the storage battery device comprises a storage battery box (26) mounted at one side of the center inside the detector body (1), a storage battery pack (27) mounted in the storage battery box (26), and a charging interface (28) mounted on the surface of the outer side of the detector body (1).

3. The intelligent meat spoilage detection device of claim 1, wherein the quantitative air extractor comprises a detector body (1) and is characterized in that an air extracting bell mouth (29) is mounted at the lower end inside the detector body, an air extracting inlet pipe (30) is mounted above the air extracting bell mouth (29), a one-way air valve (31) is mounted on the air extracting inlet pipe (30), an air extracting sleeve (32) is mounted above the air extracting inlet pipe (30), an air extracting piston (33) is mounted inside the air extracting sleeve (32), an air extracting branch pipe (34) is mounted on the air extracting piston (33), a one-way air valve II (35) is mounted on the air extracting branch pipe (34), an air extracting sleeve (36) is arranged above the air extracting branch pipe (34), the air extracting sleeve (36) is connected with the air extracting branch pipe (34) through a piston (37), and the air extracting sleeve (36) is movably connected with an air inlet through pipe (9), bleed through annular gasket (10) sealing connection between sleeve (36) and the siphunculus (9) of admitting air, detector body (1) inside is equipped with electric telescopic handle (38), electric telescopic handle (38) flexible end and the center department fixed connection who bleeds piston (33).

4. The intelligent meat spoilage and deterioration detection device according to claim 3, wherein the air suction inlet pipe (30) and the telescopic end of the electric telescopic rod (38) are sealed with the air suction sleeve (32) through rubber wear pads (39).

5. The intelligent detection device for meat spoilage according to claim 3, wherein a sealing cover (40) is installed at the lower end of the detector body (1), a conical sealing column (41) is installed at the center of the inside of the sealing cover (40), and a conical sealing gasket (42) is arranged between the conical sealing column (41) and the air exhaust bell mouth (29).

6. The intelligent detection device for meat spoilage according to claim 1, wherein a compression spring (43) is mounted on one side of the lower surface of the detection disc blocking cover (20), and the lower end of the compression spring (43) is movably contacted with the upper blocking plate (12).

7. The intelligent detection device for meat spoilage according to claim 1, wherein an air exhaust indicator lamp (44) is mounted above the outer surface of the detector body (1), and the air exhaust indicator lamp (44) is located above the controller (2).

8. The intelligent detection device for meat spoilage according to claim 1, wherein a sealing baffle plate (45) is mounted above the inside of the detector body (1), and the sealing baffle plate (45) is located below the detection disc (6).

Technical Field

The invention relates to the field of meat quality detection related equipment, in particular to an intelligent detection device for meat spoilage.

Background

In daily diet, meat is a common dish on dining tables of people, such as pork, beef, mutton or other meats, and people can obtain protein required by life activities by taking fat in the meat so as to maintain normal life activities, so that the quality of the meat is not only related to the taste of eating, but also harmful to the health of people.

In patent CN201810205027.2, a portable deteriorated meat detector, through the arrangement of capacitive reactance detection element, sampler, multi-wavelength light source, pattern collection unit, analog/digital converter, microprocessor, memory, key control unit and touch display screen, it can quickly identify whether the meat to be detected is fresh or not, the detector has small and exquisite appearance and is easy to carry; the energy source comes from two power supplies to work at every turn and can both automatic switch-over, always have a power supply in use at all times and charge by oneself through solar energy, excellent in use effect.

However, since other components such as water are often present on the outer surface of meat, detection by the method in the above patent may easily cause deviation of the detected result, resulting in inaccurate detection of meat quality.

Disclosure of Invention

The invention aims to solve the problems, designs an intelligent detection device for meat spoilage, has the functions of convenient carrying and accurate detection, solves the problem of inaccurate detection caused by external factors in meat quality detection, and detects the deterioration degree of meat by detecting the component size of hydrogen sulfide generated by meat deterioration so as to accurately judge the quality of meat.

The intelligent detection device for meat spoilage comprises a detector body, wherein a storage battery device is arranged in the detector body, a controller is arranged on the surface of the outer side of the detector body, a quantitative air extraction device is arranged below the inside of the detector body, and an automatic detection device is arranged above the quantitative air extraction device;

the automatic detection device comprises an annular rotating seat arranged at the upper end inside the detector body, the annular rotating seat is in threaded connection with the detector body, two rotating flanges are arranged on two sides above the annular rotating seat, an annular rotating limiting groove is formed in the annular rotating seat, a detection disc is movably arranged in the annular rotating seat, a limiting flange is arranged at the center of the outer side surface of the detection disc and is movably connected with the annular rotating limiting groove, a water level line is arranged on the inner side surface of the detection disc, an air inlet through pipe is arranged at the center inside the detection disc, annular sealing gaskets are arranged at the upper end and the lower end of the outer side surface of the air inlet through pipe, a detection pipe is arranged on one side of the lower surface of the detection disc, an upper baffle is movably arranged at the upper end inside of the detection pipe, and two connecting rods are, the lower ends of the two connecting rods are provided with lower annular baffles, sealing gaskets are arranged on the inner side surfaces of the lower annular baffles, probe fixing frames are arranged above the inner part of the detector body, pH value sensor probes are arranged on the probe fixing frames and inserted into the lower annular baffles, water-absorbing sponge pads are arranged on the outer side surfaces of the pH value sensor probes, pH value sensors are arranged at the centers of the inner parts of the detector body, and detection disc blocking cover devices are arranged on the detection discs;

detect the disc and keep off the device and include it keeps off the lid to be equipped with the detection disc above detecting the disc is inside, detect disc baffle and detection disc threaded connection, it keeps off lid upper surface center department and installs and rotate the ear to detect the disc, it keeps off lid upper surface one side and installs the relief valve that exhausts to detect the disc, it keeps off and installs circular gas distribution cover in lid lower surface center department to detect the disc, a plurality of gas distribution pipes are installed to circular gas distribution cover below, the gas distribution pipe becomes circular distribution, gas distribution pipe evenly distributed is on circular gas distribution cover, install the check valve on the gas distribution pipe, circular gas distribution cover lower surface center department opens there is the air inlet hole, air inlet hole and air inlet siphunculus swing joint, it is sealed through the sealed pad of annular to seal between air inlet hole and the air inlet siphuncul.

The storage battery device comprises a storage battery box installed on one side of the center of the interior of the detector body, a storage battery pack is installed in the storage battery box, and a charging interface is installed on the surface of the outer side of the detector body.

Quantitative air exhaust device includes the inside lower extreme of detector body is installed the horn mouth of bleeding, it advances the pipe to bleed to install above the horn mouth of bleeding, bleed and advance to install one-way pneumatic valve one on the pipe, bleed and advance the pipe top and install the sleeve of bleeding, bleed sleeve internally mounted has the piston of bleeding, it installs the branch pipe of bleeding on the piston to bleed, it installs one-way pneumatic valve two on the branch pipe of bleeding, it is equipped with the air bleed sleeve pipe to bleed the branch pipe top, bleed through the piston connection between sleeve pipe and the branch pipe of bleeding, the air bleed sleeve pipe and the siphunculus swing joint that admits air, bleed and the sealed sealing connection of pad through the annular between sleeve pipe and the siphunculus of admitting air, the inside electric telescopic handle that is equipped with of detector.

The air exhaust inlet pipe and the telescopic end of the electric telescopic rod are sealed with the air exhaust sleeve through rubber wear-resistant pads.

The detector body lower extreme is installed the sealed cowling, the sealed column is sealed to the inside center department of sealed cowling installation toper, be equipped with the sealed pad of toper between toper sealed column and the horn mouth of bleeding.

And a compression spring is arranged on one side of the lower surface of the detection disc blocking cover, and the lower end of the compression spring is in movable contact with the upper blocking plate.

And an air exhaust indicator lamp is arranged above the surface of the outer side of the detector body and is positioned above the controller.

And a sealing baffle is arranged above the inside of the detector body and is positioned below the detection disc.

The intelligent detection device for meat spoilage, which is manufactured by the technical scheme of the invention, comprises the following components:

this detection device drives the removal of the piston of bleeding through electric telescopic handle to the messenger bleeds the sleeve and bleed, and through the effect of one-way pneumatic valve one and one-way pneumatic valve two, make in gaseous entering into the air inlet pipe, thereby simple quick completion is gaseous ration is collected, and the noise production volume is lower when the device moves simultaneously, makes the device can operate under the condition of silence, can not produce the noise to the surrounding environment.

This detection device, effect through circular branch gas hood and gas distribution pipe, make the air of collecting abundant and detect the water in the disc and contact, thereby carry out abundant integration with hydrogen sulfide and water, detect the pH value of aqueous solution through the pH value sensor, thereby the discharge that obtains hydrogen sulfide confirms the meat degree of deterioration, it is more accurate to make the device detect the meat, simultaneously, through the overhead gage, annular baffle down, the cooperation of compression spring and pH value sensor probe, when can making the pH value sensor probe insert in the detection disc, effectual the revealing of avoiding water, thereby the detection of convenient device, also can make the device convenient to detach and change aqueous solution simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent detection device for meat spoilage according to the present invention;

FIG. 2 is a schematic view of the automatic detection apparatus of the present invention;

FIG. 3 is a schematic view of a detector tube according to the present invention;

FIG. 4 is a top view of the circular gas-distributing cover of the present invention;

FIG. 5 is a schematic view of the quantitative air evacuation device of the present invention;

in the figure, 1, a detector body; 2. a controller; 3. an annular rotating seat; 4. rotating the flange; 5. a circular rotation limiting groove; 6. detecting the disc; 7. a limiting flange; 8. a water line; 9. an air inlet pipe; 10. an annular seal; 11. a detection tube; 12. an upper baffle plate; 13. a connecting rod; 14. a lower annular baffle; 15. a gasket; 16. a probe holder; 17. a pH sensor probe; 18. a water-absorbing sponge cushion; 19. a pH value sensor; 20. detecting a disc blocking cover; 21. rotating the lug; 22. an exhaust safety valve; 23. a circular gas distribution cover; 24. a gas distributing pipe; 25. an air inlet through hole; 26. a battery case; 27. a battery pack; 28. a charging interface; 29. an air exhaust bell mouth; 30. an air suction inlet pipe; 31. a one-way air valve I; 32. an air extraction sleeve; 33. an air extraction piston; 34. an air exhaust branch pipe; 35. a one-way air valve II; 36. an air extraction sleeve; 37. a piston; 38. an electric telescopic rod; 39. a rubber wear pad; 40. a sealing cover; 41. a tapered sealing post; 42. a tapered gasket; 43. a compression spring; 44. an air extraction indicator light; 45. and sealing the baffle.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-5, in this embodiment:

in this device, interface 28 charges to storage battery 27 through charger and external power source connection, storage battery 27 through with controller 2, PH value sensor 19, electric telescopic handle 38, bleed pilot lamp 44 electric connection and supply power, controller 2's model is the PH controller of SIN-PH160 model, controller 2's control signal output part pass through the relay respectively with electric telescopic handle 38, bleed pilot lamp 44 electric connection, controller 2's signal receiving terminal and PH value sensor 19's signal transmission end electric connection, thereby controlling means's operation.

The invention is characterized in that the automatic detection device comprises a detector body 1, an annular rotating seat 3, a detection disc 6, a limit flange 7 and an annular rotating limit groove 5, wherein the annular rotating seat 3 is arranged at the upper end inside the detector body 1, the annular rotating seat 3 is in threaded connection with the detector body 1, two rotating flanges 4 are arranged on two sides above the annular rotating seat 3, an annular rotating limit groove 5 is formed inside the annular rotating seat 3, the detection disc 6 is movably arranged in the annular rotating seat 3, the limit flange 7 is movably connected with the annular rotating limit groove 5, a water level line 8 is arranged on the inner side surface of the detection disc 6, an air inlet through pipe 9 is arranged at the center inside the detection disc 6, annular sealing gaskets 10 are arranged at the upper end and the lower end of the outer side surface of the air inlet through pipe 9, and a detection pipe 11 is arranged on one side, an upper baffle plate 12 is movably arranged at the upper end inside the detection tube 11, two connecting rods 13 are arranged on two sides of the lower surface of the upper baffle plate 12, a lower annular baffle plate 14 is arranged at the lower ends of the two connecting rods 13, a sealing gasket 15 is arranged on the inner side surface of the lower annular baffle plate 14, a probe fixing frame 16 is arranged above the inside of the detector body 1, a pH value sensor probe 17 is arranged on the probe fixing frame 16, the pH value sensor probe 17 is inserted into the lower annular baffle plate 14, a water absorption sponge cushion 18 is arranged on the outer side surface of the pH value sensor probe 17, a pH value sensor 19 is arranged at the center inside the detector body 1, a detection disc baffle cover 20 is arranged above the inside of the detection disc 6, the detection disc baffle plate 20 is in threaded connection with the detection disc 6, a rotating lug 21 is arranged at the center of the upper surface of the detection disc baffle cover 20, an exhaust safety valve 22 is arranged on one side, a plurality of gas distributing pipes 24 are arranged below the circular gas distributing cover 23, the gas distributing pipes 24 are distributed in a circular shape, the gas distributing pipes 24 are uniformly distributed on the circular gas distributing cover 23, one-way valves are arranged on the gas distributing pipes 24, a gas inlet through hole 25 is formed in the center of the lower surface of the circular gas distributing cover 23, the gas inlet through hole 25 is movably connected with a gas inlet through pipe 9, the gas inlet through hole 25 is sealed with the gas inlet through pipe 9 through an annular sealing gasket 10, a compression spring 43 is arranged on one side of the lower surface of the detection disc blocking cover 20, and the lower end of the compression spring 43 is movably contacted with the upper; the annular rotating seat 3 is connected with the detector body 1 through the thread, so that the disc 6 can be conveniently detected and disassembled, the annular rotating seat 3 is movably connected with the disc 6 through the annular rotating seat 3, the annular rotating seat 3 can be quickly rotated, the disc 6 can be conveniently detected and installed, water is conveniently added by workers through the arrangement of a water level line 8, air in the air inlet through pipe 9 can be fully contacted with water through the arrangement of the circular air hood 23 and the air distribution pipe 24, so that hydrogen sulfide in the air is fully fused with the water, the detection of the device is convenient, the air in the disc 6 can be effectively discharged through the exhaust safety valve 22, meanwhile, the water can be prevented from leaking outwards, the normal use of the device is ensured, the PH value of the aqueous solution can be quickly detected through the PH value sensor 19 and the PH value sensor probe 17, so that the content of the hydrogen sulfide is judged, judge the metamorphism degree of meat, through PH value sensor probe 17 and compression spring 43, go up baffle 12 and lower annular baffle 14's cooperation to make PH value sensor probe 17 sealed insert in detecting disc 6, thereby make things convenient for PH value sensor probe 17 to detect.

The invention relates to a structure design of a quantitative air extractor, which is characterized in that an air extracting horn mouth 29 is arranged at the lower end in a detector body 1, an air extracting inlet pipe 30 is arranged above the air extracting horn mouth 29, a one-way air valve 31 is arranged on the air extracting inlet pipe 30, an air extracting sleeve 32 is arranged above the air extracting inlet pipe 30, an air extracting piston 33 is arranged in the air extracting sleeve 32, an air extracting branch pipe 34 is arranged on the air extracting piston 33, a one-way air valve II 35 is arranged on the air extracting branch pipe 34, an air extracting sleeve 36 is arranged above the air extracting branch pipe 34, the air extracting sleeve 36 is connected with the air extracting branch pipe 34 through a piston 37, the air extracting sleeve 36 is movably connected with an air inlet through pipe 9, the air extracting sleeve 36 is hermetically connected with the air inlet through an annular sealing gasket 10, an electric telescopic rod 38 is arranged in the detector body 1, and the telescopic end of the, the air suction inlet pipe 30 and the telescopic end of the electric telescopic rod 38 are sealed with the air suction sleeve 32 through a rubber wear-resistant pad 39; through reciprocating of bleeding piston 33 to through the effect of one-way pneumatic valve 31 and one-way pneumatic valve two 35, thereby make the sleeve 32 of bleeding carry out quantitative bleeding, thereby make the gaseous collection of completion that the device can be quick, make things convenient for the device to detect.

The working principle of the device is as follows: firstly, a worker can drive the annular rotating seat 3 to rotate through the rotation of the rotating flange 4, so that the annular rotating seat 3 is taken down from the detector body 1, and the detection disc 6 is taken down through taking down the annular rotating seat 3;

at the moment, the lower end of the detection disc 6 is pressed, meanwhile, the detection disc blocking cover 20 is driven to rotate through the rotation of the rotating lug 21, the detection disc blocking cover 20 is separated from the detection disc 6, the detection disc blocking cover 20 is taken down, a worker can clean the inside of the detection disc 6, and after the cleaning is finished, clean water is injected into the inside of the detection disc 6, so that the injected clean water reaches the water level line 8;

at the moment, a worker installs the detection disc blocking cover 20 on the detection disc 6, then installs the annular rotating seat 3 on the detector body 1, in the installation process, the detection tube 11 below the detection disc 6 is sleeved on the PH value sensor probe 11, meanwhile, the air inlet through tube 9 on the detection disc is inserted into the air exhaust sleeve 36, at the moment, the detection disc 6 is driven to descend along with the rotation of the detection disc blocking cover 20, so that the air inlet through tube 9 is sealed with the air exhaust sleeve 36, meanwhile, the upper end of the PH value sensor probe 11 props against the upper baffle 12, and the upper baffle 12 is pushed to ascend, so that the PH value sensor probe 11 is inserted into the detection disc 6, and the PH value sensor probe 11 is sealed with the sealing gasket 15 on the lower annular baffle 14;

when the detection is needed after the installation, the sealing cover 40 is taken down, at this time, the operator controls the electric telescopic rod 38 to perform a reciprocating expansion through the controller 2, and at the same time, the air exhaust indicator lamp 44 is controlled to be powered on, the operator observes that air is being exhausted through the air exhaust indicator lamp 44, at this time, the operator moves the detector body 1 on the detected meat in all directions, along with the movement of the detector body 1 on the meat in all directions, the electric telescopic rod 38 starts to contract, so that the air above the meat enters the air exhaust inlet pipe 30 through the air exhaust horn mouth 29 and enters the air exhaust sleeve 32 through the air exhaust inlet pipe 30, after the electric telescopic rod 38 contracts to a certain degree, the electric telescopic rod 38 is controlled to start to extend, along with the downward movement of the air exhaust piston 33 driven by the electric telescopic rod 38, the air in the air exhaust sleeve 32 is pressed into the air exhaust branch pipe 34, passing gas through the pumping manifold 34 into the pumping cannula 36;

after gas enters the air exhaust sleeve 36, the gas enters the circular air distribution cover 23 through the air exhaust inlet pipe 9, and the gas is injected into clear water through the air distribution pipe 24, so that the gas is fully contacted with water, hydrogen sulfide generated by meat deterioration in the gas is combined with the water to be changed into hydrogen sulfuric acid, and the pH value of the aqueous solution is changed;

the staff repeats the above operation for many times, so that the detection is more accurate, after the air above the meat is extracted, the device is moved to other places, the air is extracted, the medicine taking and fetus removing device 32, the air exhaust branch pipe 34, the air exhaust sleeve 36, the air intake through pipe 9 and the residual air in the circular air exhaust cover 23 are injected into the clear water, after the injection is finished, the PH value sensor probe 17 is controlled to detect the PH value of the aqueous solution, after the detection is finished, the difference value between the detected PH value and the original PH value of the aqueous solution is used for obtaining the discharge amount of hydrogen sulfide, and therefore the deterioration condition of the meat is judged according to the discharge amount of the hydrogen sulfide;

after the detection is finished, the controller 2 automatically records the pH value of the current aqueous solution, and when the detection is carried out again, the deterioration condition of the meat is identified again by detecting the difference between the next pH value and the recorded pH value, and after the detection is carried out for a plurality of times, the detection can be continued by replacing the aqueous solution.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.