CN211755169U

CN211755169U - Novel microelectronic process comprehensive experiment device convenient for storage

Info

Publication number: CN211755169U
Application number: CN201821594750.6U
Authority: CN
Inventors: 陈声镖
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2020-10-27
Anticipated expiration: 2028-09-29

Abstract

The utility model discloses a novel microelectronics technology comprehensive experiment device convenient to storing, its structure includes laboratory bench, bracing piece, fixed foot, wheel, drawer, places cabinet, switch door, handle, row's socket, external power cord and storing device, the utility model relates to a novel microelectronics technology comprehensive experiment device of storing of being convenient for, through having set up storing device, utilize the storage tank will place the laboratory glassware, utilize the vacuum pump that bleeds to make the inside vacuum of storage tank, realize the effect of better protection laboratory glassware, utilize the second motor to make the storage tank descend simultaneously and place inside the device, the effectual space that saves the laboratory glassware and occupy has solved prior art and can't realize better protection laboratory glassware to can't reduce the space that the laboratory glassware occupy, cause the inconvenient problem of use.

Description

Novel microelectronic process comprehensive experiment device convenient for storage

Technical Field

The utility model relates to a novel microelectronics technology comprehensive experiment device of storing of being convenient for belongs to the experimental apparatus field.

Background

Microelectronics has become a driving force for the development of modern electronic information technology, especially computer and communication technology, as one of the core technologies of the electronic information industry. In order to catch up with western developed countries in the new scientific and technological leather, rapid development must be achieved in the field of microelectronic technology, and with rapid development of scientific technology, a microelectronic technological comprehensive experimental device is also technically improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel microelectronics technology comprehensive experiment device of storing of being convenient for to solve prior art and can't realize better good laboratory glassware of protection, and can't reduce the space that experimental apparatus occupy, cause awkward problem.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a novel microelectronic process comprehensive experiment device convenient for storage comprises an experiment table, supporting rods, fixing feet, wheels, a drawer, a placing cabinet, an opening and closing door, a handle, a socket, an external power line and a storage device, wherein the supporting rods are arranged at four corners of the bottom end face of the experiment table and are connected with the experiment table through bolts, the fixing feet are arranged on the bottom end face of the supporting rods and are connected with the supporting rods through bolts, the wheels are positioned at the bottom ends of the fixing feet and are connected with the fixing feet through connecting rods, the drawer is positioned on the left side of the bottom end face of the experiment table and is connected with the experiment table through bolts, the placing cabinet is arranged at the bottom end of the drawer and is connected with the drawer through bolts, the opening and closing door is rotatably connected with the placing cabinet through hinges and is positioned in the middle of the rear end of the top end face of the experiment table, the power strip is matched with the experiment table in an embedded mode, the storage device is located on the right side of the rear end portion of the top end face of the experiment table and is connected with the experiment table through bolts, the storage device is composed of a base, an equipment box, a storage battery, a charging hole, a controller, a microprocessor, a threaded rod, a lifting plate, a first motor, a first gear, a second gear, a spring, a storage box, a cover, an air-exhaust vacuum pump, an infrared sensor, a clamping groove, a pressure sensor, a gear strip, a third gear, a second motor, a hydraulic oil cylinder, a plate cover and an infrared generator, the equipment box is arranged at the bottom end of the front end face of the base and is connected with the base through bolts, the storage battery is arranged on the left side of the bottom end inside the equipment box and is connected with the equipment box through bolts, the charging hole is located on the left side of the middle portion of the front end face, and the controller is connected with the storage battery through bolts, the right side of the rear end surface of the inside of the equipment box is provided with a microprocessor which is connected with the equipment box through bolts, the left side and the right side of the top end surface of the equipment box are provided with threaded rods which are connected with the equipment box through bolts, the middle part of the front end surface of the threaded rod is provided with a lifting plate which is in clearance fit with the threaded rods, the first motor is positioned on the left side of the bottom end surface of the lifting plate and is in clearance fit with the lifting plate, the top end of the first motor is provided with a first gear which is connected with the first motor through a connecting rod, the second gear is positioned at the left end of the first gear and is meshed with the first gear, the inside of the second gear is meshed with the threaded rods, the spring is positioned at the top end of the lifting plate and is in clearance fit with the lifting plate, and, and the storage box is connected with the storage box through a bolt, the top end of the storage box is provided with a cover which is in clearance fit with the storage box, the bottom end of the left end surface of the storage box is provided with an air exhaust vacuum pump which is in bolt fit with the storage box, the infrared sensor is positioned at the bottom end of the right end surface of the storage box and is in bolt fit with the storage box, the left end surface of the top end inside the base is provided with a clamping groove which is in embedded fit with the base, the pressure sensor is positioned at the left end surface inside the clamping groove and is in bolt fit with the clamping groove, the gear strip is positioned at the right side inside the base and is in clearance fit with the base, the left side of the bottom end surface of the gear strip is provided with a third gear which is meshed with the gear strip, the front end of the third gear is provided with a second motor, and the second motor is in, the hydraulic oil cylinder is located in the middle of the top end face of the gear rack and is connected with the gear rack through a bolt, a plate cover is arranged at the top end of the hydraulic oil cylinder and is connected with the hydraulic oil cylinder through a bolt, the infrared generator is located on the right end face of the top end inside the base and is embedded and matched with the base, the top end of the base is connected with the bottom end of the experiment table through a bolt, the plate cover is in clearance fit with the experiment table, an external power line is arranged in the middle of the rear end face of the supporting rod and is electrically connected with the power extension socket and the charging hole, the charging hole is electrically connected with the storage battery, the storage battery is electrically connected with the controller, the controller is electrically connected with the microprocessor, the controller is electrically connected with the air exhaust vacuum pump, and the microprocessor is electrically connected with the first.

Further, place the cabinet bottom and be provided with the support frame to the thickness of support frame is 5cm, is favorable to more improving the weight of placing the bearing of cabinet.

Further, arrange and insert and be provided with the socket more than two to the row inserts the top and is provided with the protective cover, is favorable to better providing the power for a plurality of laboratory glassware, is favorable to protecting simultaneously to arrange and inserts, prevents that the user from electrocuteeing.

Further, the lid outer lane is provided with the sealing washer to the thickness of sealing washer is 1cm, is favorable to preventing that oxygen from getting into the storage tank in, better protection laboratory glassware.

Further, the right end of the air exhaust vacuum pump is provided with an air exhaust interface, and the diameter of the air exhaust interface is 10cm, so that the efficiency of exhausting the oxygen in the storage box is improved.

Furthermore, a second infrared sensor is arranged on the right end face of the plate cover and electrically connected with the microprocessor, so that the work and the stop of the hydraulic oil cylinder can be automatically controlled.

Further, the model of the infrared sensor is 2A 21.

Further, the model of the pressure sensor is TJH-10.

Further, the infrared generator is of the model CHQPT-F3E.

The utility model discloses a novel microelectronics technology comprehensive experiment device convenient to storing, through having set up storing device, utilize the storage tank to place laboratory glassware, utilize the vacuum pump that bleeds to make the inside vacuum of storage tank, realize better protection laboratory glassware's effect, utilize the second motor to make the storage tank descend and place inside the device simultaneously, the effectual space that experimental apparatus occupy of having saved has solved prior art and can't realize better good laboratory glassware of protection to can't subtract the space that experimental apparatus occupy, cause awkward problem.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

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

FIG. 2 is a schematic view of the structure of the storage device of the present invention;

FIG. 3 is a schematic diagram of the circuit structure of the experimental device of the present invention;

in the figure: experiment table-1, support rod-2, fixed foot-3, wheel-4, drawer-5, cabinet-6, switch door-7, handle-8, extension socket-9, storage device-10, external power line-11, base-101, equipment box-102, storage battery-103, charging hole-104, controller-105, microprocessor-106, threaded rod-107, lifting plate-108, first motor-109, first gear-1010, second gear-1011, spring-1012, storage box-1013, cover-1014, air-extracting vacuum pump-1015, infrared sensor-1016, card slot-1017, pressure sensor-1018, gear rack-1019, third gear-1020, second motor-1021, 1021, Hydraulic oil cylinder-1022, plate cover-1023 and infrared generator-1024.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, 2 and 3, the present invention provides a novel microelectronic process comprehensive experiment device convenient for storage: comprises an experiment table 1, a support rod 2, a fixed foot 3, wheels 4, a drawer 5, a placing cabinet 6, a switch door 7, a handle 8, a socket 9, an external power line 11 and a storage device 10, wherein the support rod 2 is arranged at four corners of the bottom end surface of the experiment table 1, the support rod 2 is in bolted connection with the experiment table 1, the fixed foot 3 is arranged on the bottom end surface of the support rod 2, the fixed foot 3 is in bolted connection with the support rod 2, the wheels 4 are positioned at the bottom end of the fixed foot 3, the wheels 4 are in bolted connection with the fixed foot 3 through a connecting rod, the drawer 5 is positioned at the left side of the bottom end surface of the experiment table 1, the drawer 5 is in bolted connection with the experiment table 1, the placing cabinet 6 is arranged at the bottom end of the drawer 5, the placing cabinet 6 is in bolted connection with the drawer 5, the switch door 7 is arranged on the front end surface of the placing, the socket 9 is embedded and matched with the experiment table 1, the storage device 10 is positioned at the right side of the rear end part of the top end surface of the experiment table 1, the storage device 10 is connected with the experiment table 1 through bolts, the storage device 10 comprises a base 101, an equipment box 102, a storage battery 103, a charging hole 104, a controller 105, a microprocessor 106, a threaded rod 107, a lifting plate 108, a first motor 109, a first gear 1010, a second gear 1011, a spring 1012, a storage box 1013, a cover 1014, an air-suction vacuum pump 1015, an infrared sensor 1016, a clamping groove 1017, a pressure sensor 1018, a gear rack 1019, a third gear 1020, a second motor 1021, a hydraulic oil cylinder 1022, a plate cover 1023 and an infrared generator 1024, the equipment box 102 is arranged at the bottom end of the front end surface of the base 101, the equipment box 102 is connected with the base 101 through bolts, the storage battery 103 is arranged at the left side of the bottom end inside the, the charging hole 104 is positioned at the left side of the middle part of the front end face of the storage battery 103, the charging hole 104 is matched with the storage battery 103 in an embedding way, the controller 105 is positioned at the right side of the middle part of the front end face of the storage battery 103, the controller 105 is connected with the storage battery 103 through a bolt, the microprocessor 106 is arranged at the right side of the rear end face inside the equipment box 102, the microprocessor 106 is connected with the equipment box 102 through a bolt, the left side and the right side of the top end face of the equipment box 102 are provided with threaded rods 107, the threaded rods 107 are connected with the equipment box 102 through a bolt, the lifting plate 108 is arranged at the middle part of the front end face of the threaded rods 107 and is in clearance fit with the threaded rods 107, the first motor 109 is positioned at the left side of the bottom end face of the lifting plate 108, the first motor 109 is in clearance fit with the lifting plate 108, and the second gear 1011 is engaged with the first gear 1010, the second gear 1011 is internally engaged with the threaded rod 107, the spring 1012 is positioned at the top end of the lifting plate 108, the spring 1012 is in clearance fit with the lifting plate 108, the top end of the spring 1012 is provided with a storage box 1013, the storage box 1013 is bolted with the storage box 1013, the top end of the storage box 1013 is provided with a cover 1014, the cover 1014 is in clearance fit with the storage box 1013, the bottom end of the left end face of the storage box 1013 is provided with an air-extracting vacuum pump 1015, the air-extracting vacuum pump 1015 is bolted with the storage box 1013, the infrared sensor 1016 is positioned at the bottom end of the right end face of the storage box 1013, the infrared sensor 1016 is bolted with the storage box 1013, the left end face of the inner top end of the base 101 is provided with a slot 1017, the slot 1017 is in embedded fit with the base 101, the pressure, the gear rack 1019 is located on the right side inside the base 101, the gear rack 1019 is in clearance fit with the base 101, the third gear 1020 is arranged on the left side of the bottom end face of the gear rack 1019, the third gear 1020 is meshed with the gear rack 1019, the second motor 1021 is arranged at the front end of the third gear 1020, the second motor 1021 is in bolted connection with the third gear 1020 through a connecting rod, the hydraulic oil cylinder 1022 is located in the middle of the top end face of the gear rack 1019, the hydraulic oil cylinder 1022 is in bolted connection with the gear rack 1019, the top end of the hydraulic oil cylinder 1022 is provided with a plate cover 1023, the plate cover 1023 is in bolted connection with the hydraulic oil cylinder 1022, the infrared generator 1024 is located on the right end face of the top end inside the base 101, the infrared generator 1024 is in embedded fit with the base 101, the top end of the base 101 is in bolted connection with the bottom end of the experiment table 1, the plate cover is in clearance fit with the experiment table, the charging hole 104 is electrically connected with the storage battery 103, the storage battery 103 is electrically connected with the controller 105, the controller 105 is electrically connected with the microprocessor 106, the controller 105 is electrically connected with the air-extracting vacuum pump 1015, the microprocessor 106 is electrically connected with the first motor 109, the infrared sensor 1016, the pressure sensor 1018, the second motor 1021 and the infrared generator 1024, the bottom end of the placing cabinet 6 is provided with a support frame, the thickness of the support frame is 5cm, the weight born by the placing cabinet 6 is favorably improved, the row plug 9 is provided with more than two sockets, the top end of the row plug 9 is provided with a protective cover, the power supply for a plurality of experimental instruments is favorably provided, the row plug 9 is favorably protected, a user is prevented from electric shock, the outer ring of the cover is provided with a sealing ring, the thickness of the sealing ring is 1cm, the oxygen is favorably prevented from entering the storage box 1013, the experimental instruments are, the diameter of the air extraction interface is 10cm, the efficiency of extracting oxygen from the storage box 1013 is improved, the right end face of the plate cover 1023 is provided with a second infrared sensor, the second infrared sensor is electrically connected with the microprocessor 106 and is beneficial to automatically controlling the work and stop of the hydraulic oil cylinder 1022, the type of the infrared sensor 1016 is 2A21, the type of the pressure sensor 1018 is TJH-10, and the type of the infrared generator 1024 is CHQPT-F3E.

The storage battery 103 in the patent refers to a device which can regenerate internal active substances in a charging mode after discharging-electric energy is stored as chemical energy; the spring 1012 is a mechanical part that works by using elasticity, and converts chemical energy into electric energy again when discharging is needed. The part made of elastic material deforms under the action of external force and restores to the original shape after the external force is removed.

When a user wants to use the device, the user firstly places the experimental device at a proper position by using the wheels 4, then fixes the experimental device by using the fixing feet 3, then uses the external power line 11 to access the external power to electrify the extension socket 9, then the user can place the experimental instrument to be used at a proper position of the experimental table 1, then uses the extension socket 9 to electrify the experimental instrument and then the user can start the experiment, after the experiment is finished, the user can use the controller 105 to control the top end of the hydraulic oil cylinder 1022 at the bottom end of the plate cover 1023 to move downwards, at this time, the plate cover 1023 can move downwards, when the user stops descending downwards, the user uses the controller 105 at the right side of the front end face of the storage battery 103 to open the second motor 1021 at the front end of the third gear 1020, the rotation of the second motor 1021 can drive the third gear 1020 at the left side of the bottom end face of the gear rack 1019 to rotate, at this time, the gear rack 1019 will move rightwards, when the gear rack 1019 moves a suitable distance, the user can use the controller 105 to start the first motor 109 located at the left and right sides of the bottom end surface of the lifting plate 108, at this time, the rotation of the first motor 109 will drive the first gear 1010 and the second gear 1011 to rotate, the rotation of the second gear 1011 will move upwards slowly through the threaded rod 107, so as to lift the storage box 1013 located at the top end of the spring 1012, when the infrared sensor 1016 at the bottom end of the right end surface of the storage box 1013 receives a signal from the infrared generator 1024 located at the right end of the top end of the base 101, at this time, the infrared sensor 1016 will transmit a signal to the microprocessor 106 located at the right end of the rear end surface inside the equipment box 102, then the microprocessor 106 will transmit a closing signal to the first motor 109 after processing the signal, and then the first motor 109 stops rotating and the storage box 1013 stops lifting, the user can then open the storage case 1013 with the lid 1014 and then pick up the laboratory instrument and place it inside the storage case 1013, the springs 1012 provide cushioning to prevent the test device from being damaged, and the lid 1014 is then placed in its original position, the user can slowly lower the storage case 1013 to the original position using the controller 105, the controller 105 then turns on the evacuation vacuum pump 1015 located at the bottom end of the left end face of the storage compartment 1013, when the evacuation vacuum pump 1015 is operated for a suitable period of time and the controller 105 is used to turn off the evacuation vacuum pump 1015, at this time, the air inside the storage case 1013 is drawn out to make the inside of the storage case 1013 vacuumed, the laboratory instrument can be protected better, and finally, the controller 105 is utilized to place the plate cover 1023 at the original position, and then the user can place other sundries into the drawer 5 and the storage cabinet 6.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel microelectronics technology comprehensive experiment device convenient to storing, includes laboratory bench (1), bracing piece (2), fixed foot (3), wheel (4), drawer (5), places cabinet (6), switch door (7), handle (8), arranges and inserts (9) and external power cord (11), its characterized in that: the device is characterized by further comprising a storage device (10), supporting rods (2) are arranged at four corners of the bottom end face of the experiment table (1), the supporting rods (2) are connected with the experiment table (1) through bolts, fixing feet (3) are arranged on the bottom end face of the supporting rods (2), the fixing feet (3) are connected with the supporting rods (2) through bolts, wheels (4) are located at the bottom ends of the fixing feet (3), the wheels (4) are connected with the fixing feet (3) through bolts through connecting rods, a drawer (5) is located on the left side of the bottom end face of the experiment table (1), the drawer (5) is connected with the experiment table (1) through bolts, a placing cabinet (6) is arranged at the bottom end of the drawer (5), the placing cabinet (6) is connected with the drawer (5) through bolts, a switch door (7) is arranged on the front end face of the placing cabinet (6), and the switch door (7, the row socket (9) is located in the middle of the rear end of the top end face of the experiment table (1), the row socket (9) is matched with the experiment table (1) in an embedded mode, the storage device (10) is located on the right side of the rear end of the top end face of the experiment table (1), the storage device (10) is connected with the experiment table (1) through bolts, and the storage device (10) is composed of a base (101), an equipment box (102), a storage battery (103), a charging hole (104), a controller (105), a microprocessor (106), a threaded rod (107), a lifting plate (108), a first motor (109), a first gear (1010), a second gear (1011), a spring (1012), a storage box (1013), a cover (1014), a vacuum pump (1015), an infrared sensor (1016), a clamping groove (1017), a pressure sensor (1018), a gear bar (1019), a third gear (1020), a second motor (1021), a hydraulic oil cylinder (1022), The plate cover (1023) and the infrared generator (1024) are arranged, an equipment box (102) is arranged at the bottom end of the front end face of the base (101), the equipment box (102) is connected with the base (101) through bolts, a storage battery (103) is arranged on the left side of the bottom end inside the equipment box (102), the storage battery (103) is connected with the equipment box (102) through bolts, the charging hole (104) is arranged on the left side of the middle part of the front end face of the storage battery (103), the charging hole (104) is matched with the storage battery (103) in an embedded mode, the controller (105) is arranged on the right side of the middle part of the front end face of the storage battery (103), the controller (105) is connected with the storage battery (103) through bolts, a microprocessor (106) is arranged on the right side of the rear end face inside the equipment box (102), the microprocessor (106) is connected with the equipment box (102), and the threaded rod (107) is connected with the equipment box (102) through a bolt, a lifting plate (108) is arranged in the middle of the front end face of the threaded rod (107), the lifting plate (108) is in clearance fit with the threaded rod (107), the first motor (109) is positioned on the left side of the bottom end face of the lifting plate (108), the first motor (109) is in clearance fit with the lifting plate (108), a first gear (1010) is arranged at the top end of the first motor (109), the first gear (1010) is in bolt connection with the first motor (109) through a connecting rod, the second gear (1011) is positioned at the left end of the first gear (1010), the second gear (1011) is meshed with the first gear (1010), the inside of the second gear (1011) is meshed with the threaded rod (107), the spring (1012) is positioned at the top end of the lifting plate (108), and the spring (1012) is in clearance fit with the lifting plate (108), the top end of the spring (1012) is provided with a storage box (1013), the storage box (1013) is in bolted connection with the storage box (1013), the top end of the storage box (1013) is provided with a cover (1014), the cover (1014) is in clearance fit with the storage box (1013), the bottom end of the left end face of the storage box (1013) is provided with an air-extracting vacuum pump (1015), the air-extracting vacuum pump (1015) is in bolted connection with the storage box (1013), the infrared sensor (1016) is positioned at the bottom end of the right end face of the storage box (1013), the infrared sensor (1016) is in bolted connection with the storage box (1013), the left end face of the inner top end of the base (101) is provided with a clamping groove (1017), the clamping groove (1017) is in embedded fit with the base (101), the pressure sensor (1018) is positioned at the left end face of the inner part of the clamping groove (1017), the pressure sensor (1018) is in bolted connection with the clamping groove (1017, the gear rack (1019) is in clearance fit with the base (101), a third gear (1020) is arranged on the left side of the bottom end face of the gear rack (1019), the third gear (1020) is meshed with the gear rack (1019), a second motor (1021) is arranged at the front end of the third gear (1020), the second motor (1021) is in bolted connection with the third gear (1020) through a connecting rod, the hydraulic oil cylinder (1022) is located in the middle of the top end face of the gear rack (1019), the hydraulic oil cylinder (1022) is in bolted connection with the gear rack (1019), a plate cover (1023) is arranged at the top end of the hydraulic oil cylinder (1022), the plate cover (1023) is in bolted connection with the hydraulic oil cylinder (1022), the infrared generator (1024) is located on the right end face of the inner top end of the base (101), the infrared generator (1024) is in embedded fit with the base (101), and the top end of the base (101) is in bolted connection with the bottom end of the experiment table (1, board lid (1023) and laboratory bench (1) clearance fit, bracing piece (2) rear end face middle part is provided with external power cord (11), external power cord (11) are inserted (9) and are charged hole (104) electricity with row and are connected, charge hole (104) and battery (103) electricity and be connected, battery (103) are connected with controller (105) electricity, controller (105) are connected with microprocessor (106) electricity, controller (105) are connected with air exhaust vacuum pump (1015) electricity, microprocessor (106) are connected with first motor (109), infrared sensor (1016), pressure sensor (1018), second motor (1021) and infrared generator (1024) electricity.

2. The novel microelectronic process comprehensive experimental device convenient for storage of claim 1, characterized in that: the bottom end of the placing cabinet (6) is provided with a supporting frame, and the thickness of the supporting frame is 5 cm.

3. The novel microelectronic process comprehensive experimental device convenient for storage of claim 1, characterized in that: the row insert (9) is provided with more than two sockets, and the top end of the row insert (9) is provided with a protective cover.

4. The novel microelectronic process comprehensive experimental device convenient for storage of claim 1, characterized in that: and a sealing ring is arranged on the outer ring of the cover (1014), and the thickness of the sealing ring is 1 cm.

5. The novel microelectronic process comprehensive experimental device convenient for storage of claim 1, characterized in that: the right end of the air exhaust vacuum pump (1015) is provided with an air exhaust interface, and the diameter of the air exhaust interface is 10 cm.

6. The novel microelectronic process comprehensive experimental device convenient for storage of claim 1, characterized in that: the right end face of the plate cover (1023) is provided with a second infrared sensor, and the second infrared sensor is electrically connected with the microprocessor (106).