Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a public health preventive medicine bacteria collection detection system and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a public health preventive medicine bacterium collecting detection system comprises a detection box and a box cover hinged with the detection box, wherein a groove for placing a microscope and an observation window for observing flora by the microscope are arranged on the detection box, a placing rack is connected in the detection box through a support, a culture dish is stacked in the placing rack, a first anti-falling assembly is arranged on the placing rack, a driving assembly is arranged in the detection box, a turntable is arranged on the driving assembly, a placing groove for placing the culture dish is formed in the turntable, a second anti-falling assembly is arranged in the placing groove, a fixed disc is fixedly connected in the detection box, a discharging groove matched with the placing groove is formed in the fixed disc, a discharging mechanism is arranged in the detection box and is arranged below the discharging groove, and a discharging port matched with the discharging mechanism is formed in the detection box, a sealing plate is arranged in the discharge port.
Preferably, drive assembly is including setting firmly the driving motor in the detection case, driving motor's output is connected with the axis of rotation, be provided with the driving gear in the axis of rotation, drive assembly still includes and rotates the dwang of connection in the detection case through the bearing, set firmly the driven gear who is connected with the driving gear meshing on the dwang, dwang and carousel fixed connection.
Preferably, first prevent weighing down the subassembly including setting up the elastic telescopic rod at the detection box inner wall, the one end that the detection box inner wall was kept away from to elastic telescopic rod is connected with the mount, sliding connection has two carriage release levers, two all overlap on the carriage release lever and be equipped with the swinging arms, two be provided with first elastic component between the swinging arms, the one end swing joint that the carriage release lever was kept away from to the swinging arms has the atress board, the buffer block has set firmly on the carriage release lever, buffer block sliding connection is in the rack, the upper and lower both sides of buffer block offset with culture dish and carousel activity respectively, first prevent weighing down the subassembly still include with case lid fixed connection's kicking block, the kicking block offsets with the atress board activity.
Preferably, a first inclined plane is arranged at the top of the buffer block and movably abutted against the bottom wall of the culture dish.
Preferably, the second anti-falling component comprises a movable groove arranged in the placing groove, the inner wall of the movable groove is rotatably connected with a buffer plate through a rotating shaft, the buffer plate is movably abutted to the culture dish, and a second elastic element is arranged between the buffer plate and the inner wall of the movable groove.
Preferably, discharge mechanism is including connecing material subassembly and ejection of compact subassembly, connect the material subassembly including setting firmly the extension board at the detection case inner wall, swing joint has the discharging pipe on the extension board, discharging pipe inner wall swing joint has the movable plate, the bottom of movable plate is connected with the screwed pipe, screwed pipe female connection has the screw rod, the screw rod passes through the bearing and rotates the connection in the detection case, connect the material subassembly still including rotating the dead lever of connection in the detection case, the cover is equipped with the sleeve pipe on the dead lever, be connected with matched with synchronizing wheel, two on sleeve pipe and the screw rod be provided with the belt between the synchronizing wheel, be provided with the pinion on the sleeve pipe, be provided with the master gear of being connected with the pinion meshing on the dwang.
Preferably, the discharging assembly comprises a movable plate fixedly connected with the discharging pipe, a third elastic element is arranged between the movable plate and the inner wall of the detection box, a pull rope is connected to the movable plate, and one end, far away from the movable plate, of the pull rope is connected with the box cover.
Preferably, the inner wall of the detection box is provided with a plurality of fixed pulleys, and the pull rope is movably connected to the fixed pulleys.
Preferably, the closing plate passes through the connecting rod and rotates to be connected in the discharge gate, the outside cover of connecting rod is equipped with and is used for the closing plate pivoted torsional spring that resets, the silo inner wall is provided with circumference evenly distributed's bactericidal lamp down.
The invention also discloses a using method of the public health preventive medicine bacterium collecting detection system, which comprises the following steps:
s1: the device can sterilize the interior of the box body before use, after sterilization is finished, the box cover is opened, a plurality of culture dishes to be detected are placed at the placing frame in a centralized mode, the culture dishes exert force on the buffer blocks, the buffer blocks slide downwards in the placing frame, the springs are compressed due to the fact that the springs are arranged in the elastic telescopic rods, the buffer blocks drive the culture dishes to slide downwards in the placing frame slowly until the bottoms of the buffer blocks abut against the top of the rotary table, and the box cover can be closed at the moment;
s2: when the box cover is closed, the top block connected with the box cover abuts against the stress plate, so that the stress plate moves downwards, the first elastic element is stretched, the stress plate pushes the moving rods at two sides to be away from each other through the swinging rods, the moving rods drive the buffer blocks to be away from each other and move out of the placing frame, and then the buffer blocks fall to abut against the rotary table;
s3: then taking out the microscope from the groove and placing the microscope on the box cover, observing the interior of the detection box through the observation window, and simultaneously controlling the driving motor to operate, so that the output end of the driving motor drives the driving gear to be meshed with the driven gear on the rotating rod through the rotating shaft, and the rotating rod drives the rotating disc to rotate;
s4: when the rotary disc rotates and the placing groove rotates to the bottom of the placing frame, the culture dish originally connected with the top wall of the rotary disc can fall into the placing groove, in the process, the culture dish acts on the buffer plate to enable the buffer plate to extrude the second elastic element, the second elastic element is compressed, the culture dish slowly falls in the placing groove until the bottom of the culture dish abuts against the top wall of the fixed disc, along with the continuous work of the driving motor, when the rotary disc drives the culture dish arranged in the placing groove to move below the observation window, the driving motor stops working, and at the moment, a worker can detect and observe floras in the culture dish;
s5: after the detection is finished, the driving motor is controlled to continue to operate, the turntable drives the detected culture dish to continue to rotate until the placing groove is opposite to the discharging groove, at the moment, the bottom of the culture dish in the placing groove does not abut against the fixed disk any more, the culture dish continues to exert force on the buffer plate, the second elastic element is extruded again, the culture dish slowly slides downwards and falls on the moving plate of the discharging pipe, the buffer plate does not abut against the culture dish any more and resets under the elastic action of the second elastic element, and in the process, the bactericidal lamp in the discharging groove kills flora in the detected culture dish;
s6: then the driving motor is continuously operated to enable the turntable to continuously detect the culture dish in the placing rack, when the driving motor drives the rotating rod to rotate, the main gear on the rotating rod is meshed with the pinion on the sleeve to rotate the sleeve, the screw rod synchronously rotates along with the sleeve under the action of the synchronous wheel and the belt to drive the threaded pipe to move downwards, thereby the moving plate and the culture dish arranged above the moving plate move downwards to leave a placing space for the next culture dish, when the culture dishes in the placing rack are all observed and detected, the moving plate moves to be flush with the bottom wall of the discharging pipe, the box cover is turned upwards, so that the box cover pulls the movable plate to move through the pull rope, the movable plate extrudes the third elastic element and drives the discharging pipe to slide at the support plate, and move to the discharge gate, the closing plate atress upset, the staff can once only manually connect the culture dish of getting from the discharging pipe drop this moment.
Compared with the prior art, the invention provides a public health preventive medicine bacterium collecting detection system and a using method thereof, and the public health preventive medicine bacterium collecting detection system has the following beneficial effects:
1. according to the public health preventive medicine bacterium collecting detection system and the using method thereof, the driving assembly drives the rotary disc to rotate, the placing groove of the rotary disc is matched with the placing frame and the discharging groove of the fixed disc, feeding and discharging of culture dishes are achieved, detection personnel can replace the culture dishes in different batches quickly, and accordingly working efficiency of bacterium group detection is improved.
2. This public health preventive medicine collection fungus detecting system and application method thereof, through culture dish to buffer block effort, the buffer block glides in the rack, because be provided with the spring in the elasticity telescopic link for the spring is compressed, and the buffer block drives the culture dish and slowly glides in the rack, avoids the culture dish directly to glide to the carousel along the rack on, collides with the carousel and leads to the fungus crowd to leak.
3. According to the public health preventive medicine bacterium collecting detection system and the using method thereof, the inclined plane is arranged at the top of the buffer block, so that when the buffer block moves to the side edge, the culture dish above the buffer block can gradually fall, and the culture dish directly falls on the turntable after the buffer block is not moved, and the placing safety of the culture dish is ensured.
4. This public health preventive medicine collection fungus detecting system and application method thereof through the culture dish to the buffer board effort, makes the buffer board extrusion second elastic element, and second elastic element is compressed, makes the culture dish slowly fall in the standing groove until the bottom offsets with the fixed disk roof, reduces the falling speed of culture dish on the one hand, and on the other hand fixes the culture dish in the testing process, avoids the culture dish to rock and causes and detect inaccurately.
5. According to the public health preventive medicine bacterium collecting detection system and the using method thereof, the box cover is upwards overturned, the box cover is enabled to move by pulling the movable plate through the pull rope, the movable plate extrudes the third elastic element and drives the discharging pipe to slide at the supporting plate, and the discharging pipe moves towards the discharging port, so that discharging and material taking are simultaneously carried out, and further the efficiency of bacterium group detection is improved.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1, 2, 3, 4, 5 and 11, a public health preventive medicine bacteria collection detection system comprises a detection box 1 and a box cover 2 hinged with the detection box 1, a groove 101 for placing a microscope and an observation window 102 for observing flora by the microscope are arranged on the detection box 1, a placing frame 3 is connected in the detection box 1 through a support, a culture dish 301 is stacked in the placing frame 3, a first anti-falling component is arranged on the placing frame 3, a driving component is arranged in the detection box 1, a rotating disc 4 is arranged on the driving component, a placing groove 401 for placing the culture dish 301 is arranged on the rotating disc 4, a second anti-falling component is arranged in the placing groove 401, a fixed disc 5 is fixedly connected in the detection box 1, a blanking groove 501 matched with the placing groove 401 is arranged on the fixed disc 5, a discharging mechanism is arranged in the detection box 1, the discharging mechanism is arranged below the blanking groove 501, the detection box 1 is provided with a discharge port 6 matched with the discharge mechanism, and a sealing plate 601 is arranged in the discharge port 6.
It is specific, need examine time measuring to the fungus crowd, place a plurality of culture dishes 301 that wait to detect in rack 3 department, fall to carousel 4 department through first preventing weighing down the subassembly, rotate through drive assembly drive carousel 4, make carousel 4 shift and remove to observation window 102 below culture dishes 301 in the rack 3, the staff is carved through the microscope and is observed this moment, continue to make drive assembly drive carousel 4 rotate afterwards, make the lower chute 501 of 4 cooperation fixed disks of carousel 5 carry out the unloading to the culture dish 301 that has detected, realize the quick feeding and the ejection of compact to culture dish 301, need not the staff and place culture dish 301 one by one and collect one by one, be convenient for the measurement personnel and change different batches of culture dish 301 fast, and then improve the work efficiency who detects the fungus crowd.
Example 2:
referring to fig. 2, 3, 4 and 8, a bacteria collection and detection system for public health and preventive medicine is the same as that of embodiment 1, and further, the driving assembly comprises a driving motor 7 fixedly arranged in the detection box 1, the output end of the driving motor 7 is connected with a rotating shaft 701, a driving gear 702 is arranged on the rotating shaft 701, the driving assembly further comprises a rotating rod 703 rotatably connected in the detection box 1 through a bearing, a driven gear 704 meshed with the driving gear 702 is fixedly arranged on the rotating rod 703, and the rotating rod 703 is fixedly connected with the rotary table 4.
Specifically, by controlling the operation of the driving motor 7, the output end of the driving motor 7 drives the driving gear 702 to engage with the driven gear 704 on the rotating rod 703 through the rotating shaft 701, so that the rotating rod 703 drives the rotating disk 4 to rotate, and then the feeding and discharging of the culture dish 301 are completed through the rotating disk 4.
Example 3:
with reference to figure 2 of the drawings, fig. 3 and fig. 5, a public health preventive medicine collection fungus detecting system, the same as embodiment 2, further, first prevent weighing down the subassembly including setting up the elastic telescopic rod 8 at detection case 1 inner wall, the one end that elastic telescopic rod 8 kept away from detection case 1 inner wall is connected with mount 801, sliding connection has two movable rods 802 in mount 801, it is equipped with swinging arms 803 all to overlap on two movable rods 802, be provided with first elastic element 804 between two swinging arms 803, the one end swing joint that swinging arms 803 kept away from movable rods 802 has stress plate 805, buffer block 806 has set firmly on movable rods 802, buffer block 806 sliding connection is in rack 3, the upper and lower both sides of buffer block 806 respectively with culture dish 301 and carousel 4 activity counterbalance, first prevent weighing down the subassembly still include with case lid 2 fixed connection's kicking block 807, kicking block 807 offsets with stress plate 805 activity.
Specifically, place a plurality of culture dishes 301 that wait to detect in rack 3 department, culture dish 301 is to buffer block 806 effort, buffer block 806 gliding in rack 3, because be provided with the spring in the elastic expansion pole 8, make the spring compressed, buffer block 806 drives culture dish 301 and slowly glides in rack 3, avoid culture dish 301 directly to glide to carousel 4 along rack 3 on, collide with carousel 4 and lead to the fungus crowd to leak, offset with carousel 4 top until the bottom of buffer block 806.
Example 4:
referring to fig. 2, 3 and 5, a bacteria-collecting and detecting system for public health and preventive medicine is similar to embodiment 3, and further, a first inclined surface is provided on the top of the buffer block 806, and the first inclined surface is movably abutted against the bottom wall of the culture dish 301.
Specifically, the top of the buffer block 806 is arranged to be an inclined plane, so that when the buffer block 806 moves to the side, the culture dish 301 above the buffer block 806 can gradually fall down, and the culture dish 301 directly falls on the turntable 4 after the buffer block 806 moves, thereby ensuring the placement safety of the culture dish 301 and preventing the flora from leaking and the culture dish 301 from being damaged.
Example 5:
referring to fig. 6 and 7, a public health preventive medicine bacteria collection detection system is the same as that of embodiment 1, and further, the second anti-falling assembly comprises a movable groove 9 arranged in the placing groove 401, the inner wall of the movable groove 9 is rotatably connected with a buffer plate 901 through a rotating shaft, the buffer plate 901 movably abuts against the culture dish 301, and a second elastic element 902 is arranged between the buffer plate 901 and the inner wall of the movable groove 9.
Specifically, carousel 4 is when rotating, standing groove 401 rotates when 3 bottoms of rack, culture dish 301 that originally meets with 4 roof of carousel can drop in standing groove 401 this moment, in this process, culture dish 301 is to buffer board 901 effort, make buffer board 901 extrusion second elastic element 902, second elastic element 902 is compressed, make culture dish 301 slowly fall until bottom and 5 roof offsets in the standing groove 401, on the one hand cut down to culture dish 301's falling speed, on the other hand fixes culture dish 301 in the testing process, avoid culture dish 301 to rock and cause and detect inaccurately.
Example 6:
referring to fig. 1, 2, 3, 4, 9, 10 and 11, a public health preventive medicine colony detecting system, the same as embodiment 2, further, the discharging mechanism includes a material receiving assembly and a material discharging assembly, the material receiving assembly includes a support plate 10 fixedly disposed on the inner wall of the detection box 1, the support plate 10 is movably connected with a material discharging pipe 11, the inner wall of the material discharging pipe 11 is movably connected with a moving plate 12, the bottom of the moving plate 12 is connected with a threaded pipe 121, the threaded pipe 121 is internally threaded with a screw 122, the screw 122 is rotatably connected in the detection box 1 through a bearing, the material receiving assembly further includes a fixing rod 13 rotatably connected in the detection box 1, a sleeve 131 is sleeved on the fixing rod 13, the sleeve 131 and the screw 122 are connected with matched synchronizing wheels 132, a belt is disposed between the two synchronizing wheels 132, an auxiliary gear 133 is disposed on the sleeve 131, and a main gear 705 engaged with the auxiliary gear 133 is disposed on the rotating rod 703.
Further, the discharging assembly comprises a movable plate 14 fixedly connected with the discharging pipe 11, a third elastic element 141 is arranged between the movable plate 14 and the inner wall of the detection box 1, a pulling rope 142 is connected to the movable plate 14, and one end of the pulling rope 142 away from the movable plate 14 is connected to the box cover 2.
Furthermore, the inner wall of the detection box 1 is provided with a plurality of fixed pulleys 15, and the pull rope 142 is movably connected to the fixed pulleys 15.
Further, closing plate 601 passes through the connecting rod and rotates to be connected in discharge gate 6, and the outside cover of connecting rod is equipped with and is used for closing plate 601 pivoted torsional spring that resets, and the inner wall of feed chute 501 is provided with circumference evenly distributed's bactericidal lamp 5011.
Specifically, the rotating disc 4 drives the detected culture dish 301 to rotate continuously until the placing groove 401 is opposite to the discharging groove 501, at this time, the bottom of the culture dish 301 in the placing groove 401 does not abut against the fixed disc 5 any more, the culture dish 301 continues to exert force on the buffer plate 901, the second elastic element 902 is squeezed again, the culture dish 301 slides down slowly and falls on the moving plate 12 of the discharging pipe 11, the buffer plate 901 does not abut against the culture dish 301 any more and is reset under the elastic force of the second elastic element 902, in this process, the germicidal lamp 5011 in the discharging groove 501 kills the flora in the detected culture dish 301, then the driving motor 7 continues to operate, the rotating disc 4 continues to detect the culture dish 301 in the placing frame 3, when the driving motor 7 drives the rotating disc 703 to rotate, the main gear 705 on the rotating disc 703 is meshed with the secondary gear 133 on the sleeve 131, the sleeve 131 rotates, the screw 122 rotates synchronously with the sleeve 131 under the effect of the synchronizing wheel 132 and the belt, the screw 122 is driven to move the threaded pipe 121 downwards, so that the moving plate 12 and the culture dish 301 placed above the moving plate are moved downwards, a placing space is left for the next culture dish 301, and the situation that the moving plate 12 is placed at the bottom of the discharge pipe 11 at the beginning, so that the culture dish 301 is damaged due to the fact that the descending force is too large because the descending height is large is avoided, it is noted that the main gear 705 is an incomplete gear, after the main gear 705 is meshed with the pinion 133 for a circle, the moving plate 12 is moved downwards by the height of one culture dish 301, teeth meshed with the pinion 133 do not exist at other positions of the main gear 705, along with the continuous rotation of the rotating rod 703, the moving plate 12 keeps the position, waits for receiving the detected and killed culture dish 301 falling from the discharge groove 501, and after the culture dishes 301 in the rack 3 are completely observed and detected, the moving plate 12 is moved to be flush with the bottom wall of the discharge pipe 11 at this time, and the box cover 2 is turned upwards, the box cover 2 pulls the movable plate 14 to move through the pulling rope 142, the movable plate 14 presses the third elastic element 141 and drives the discharging pipe 11 to slide on the supporting plate 10 and move towards the discharging hole 6, the sealing plate 601 is forced to turn over, and at this time, a worker can manually take in the culture dish 301 dropped from the discharging pipe 11 at one time.
The invention also discloses a using method of the public health preventive medicine bacterium collecting detection system, which comprises the following steps:
s1: the device can sterilize the interior of the box body before use, after sterilization, the box cover 2 is opened, a plurality of culture dishes 301 to be detected are intensively placed at the placing frame 3, the culture dishes 301 exert force on the buffer blocks 806, the buffer blocks 806 slide downwards in the placing frame 3, the springs are compressed due to the fact that the springs are arranged in the elastic telescopic rods 8, the buffer blocks 806 drive the culture dishes 301 to slide downwards slowly in the placing frame 3, the culture dishes 301 are prevented from sliding downwards to the rotary table 4 along the placing frame 3 directly, flora leakage caused by collision with the rotary table 4 is avoided until the bottoms of the buffer blocks 806 abut against the top of the rotary table 4, and the box cover 2 can be closed at the moment;
s2: when the box cover 2 is closed, the top block 807 connected with the box cover 2 abuts against the stress plate 805, the elasticity of the third elastic element 141 is greater than the sum of the first elastic element 804 and the spring in the elastic telescopic rod 8, so that the stress plate 805 moves downwards, the first elastic element 804 is stretched, the stress plate 805 pushes the moving rods 802 at two sides to move away from each other through the swinging rod 803, the moving rods 802 drive the buffer blocks 806 to move away from each other and move out of the placing frame 3, and then the buffer blocks 806 fall to abut against the rotary table 4;
s3: then, taking out the microscope from the groove 101 and placing the microscope on the box cover 2, observing the interior of the detection box 1 through the observation window 102, and simultaneously controlling the driving motor 7 to operate, so that the output end of the driving motor 7 drives the driving gear 702 to be meshed with the driven gear 704 on the rotating rod 703 through the rotating shaft 701, and the rotating rod 703 drives the turntable 4 to rotate;
s4: when the rotating disc 4 rotates and the placing groove 401 rotates to the bottom of the placing frame 3, the culture dish 301 originally connected with the top wall of the rotating disc 4 falls into the placing groove 401, in the process, the culture dish 301 exerts force on the buffer plate 901, the buffer plate 901 extrudes the second elastic element 902, the second elastic element 902 is compressed, the culture dish 301 slowly falls in the placing groove 401 until the bottom abuts against the top wall of the fixed disc 5, along with the continuous work of the driving motor 7, when the rotating disc 4 drives the culture dish 301 placed in the placing groove 401 to move below the observation window 102, the driving motor 7 stops working, and at the moment, a worker can detect and observe the flora in the culture dish 301;
s5: after the detection is finished, the driving motor 7 is controlled to continue to operate, so that the turntable 4 drives the detected culture dish 301 to continue to rotate until the placing groove 401 is opposite to the blanking groove 501, at the moment, the bottom of the culture dish 301 in the placing groove 401 is not abutted against the fixed disk 5 any more, the culture dish 301 continues to exert force on the buffer plate 901, the second elastic element 902 is extruded again, the culture dish 301 slowly slides downwards and falls on the moving plate 12 of the discharge pipe 11, the buffer plate 901 is not abutted against the culture dish 301 any more and is reset under the elastic force of the second elastic element 902, and in the process, the bactericidal lamp 5011 in the blanking groove 501 kills flora in the detected culture dish 301;
s6: then the driving motor 7 is continuously operated, so that the rotating disc 4 continuously detects the culture dish 301 in the rack 3, when the driving motor 7 drives the rotating rod 703 to rotate, the main gear 705 on the rotating rod 703 is meshed with the pinion 133 on the sleeve 131, the sleeve 131 rotates, the screw 122 synchronously rotates with the sleeve 131 under the action of the synchronizing wheel 132 and the belt, so that the screw 122 drives the threaded pipe 121 to move downwards, the moving plate 12 and the culture dish 301 placed above move downwards, a placing space is left for the next culture dish 301, the moving plate 12 is prevented from being placed at the bottom of the discharging pipe 11 at the beginning, the culture dish 301 is damaged due to the excessive descending force caused by the large descending height, after the culture dishes 301 in the rack 3 are completely observed and detected, the moving plate 12 moves to be flush with the bottom wall of the discharging pipe 11, the box cover 2 is turned upwards, so that the box cover 2 pulls the moving plate 14 to move through the pulling rope 142, the movable plate 14 presses the third elastic element 141 and drives the discharging pipe 11 to slide on the support plate 10 and move towards the discharging port 6, the sealing plate 601 is forced to turn over, and at this time, a worker can manually take in the culture dish 301 dropped from the discharging pipe 11 at one time.
In conclusion, the rotary disc 4 is matched with the blanking groove 501 of the fixed disc 5 and the placing frame 3 to carry out feeding and blanking, so that the culture dishes 301 can be rapidly fed and discharged, workers do not need to place and collect the culture dishes 301 one by one, detection workers can replace the culture dishes 301 in different batches rapidly, the working efficiency of flora detection is improved, and the first anti-falling assembly and the second anti-falling assembly effectively avoid flora leakage and damage of the culture dishes 301, and eliminate potential safety hazards.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.