CN109686268A - A kind of suppressible liquid crystal lift all-in-one machine - Google Patents

A kind of suppressible liquid crystal lift all-in-one machine Download PDF

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Publication number
CN109686268A
CN109686268A CN201811594603.3A CN201811594603A CN109686268A CN 109686268 A CN109686268 A CN 109686268A CN 201811594603 A CN201811594603 A CN 201811594603A CN 109686268 A CN109686268 A CN 109686268A
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CN
China
Prior art keywords
main body
machine main
motor
outer body
telescopic rod
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Pending
Application number
CN201811594603.3A
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Chinese (zh)
Inventor
钟春阳
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Shanghai Zhaoping Electronic Technology Co Ltd
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Shanghai Zhaoping Electronic Technology Co Ltd
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Priority to CN201811594603.3A priority Critical patent/CN109686268A/en
Publication of CN109686268A publication Critical patent/CN109686268A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/10Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12Brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/20Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B11/00Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
    • B08B11/04Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention discloses a kind of suppressible liquid crystal lift all-in-one machines, including outer body and all-in-one machine main body, the outer body is the cuboid box-like structure of inner hollow, the inner bottom of outer body is equipped with electric lifting pole, the top of the electric lifting pole is welded with the lifting mainboard of cuboid plate, the two sides of the lifting mainboard upper end are symmetrically fixedly installed with fixing seat, the all-in-one machine main body is also cuboid plate structure, two groups of vertical side bottom end Construction integrations where all-in-one machine main body broadside have connection column cap, the connection column cap is connected in the cross through hole of fixing seat, the top end face middle position of the outer body be also provided with for all-in-one machine main body lifting across lifting groove, the transversal cross-section of the lifting groove is greater than the transversal cross-section of all-in-one machine main body.All-in-one machine main body can hidden when not used to outer body, improve the protection to all-in-one machine main body, and to the easy to adjust of all-in-one machine main body by the suppressible liquid crystal lift all-in-one machine.

Description

A kind of suppressible liquid crystal lift all-in-one machine
Technical field
The invention belongs to all-in-one machine industry technology fields, and in particular to a kind of suppressible liquid crystal lift all-in-one machine.
Background technique
All-in-one machine common are the publicity for advertisement, the inquiry of public information, the exhibition of Media and conference content Show, arrives open air in order to which for the convenience of the people all-in-one machine is gradually arranged, outdoor all-in-one machine is chiefly used in the publicity of advertisement and the inquiry of information Deng being often used all-in-one machine during carrying out meeting displaying and the content of meeting be shown and interacted.
But existing all-in-one machine is fixed on above display main body mostly, after the completion of meeting, all-in-one machine is still exposed Outside, due to being often used when the all-in-one machine of meeting displaying is not, it is prolonged it is exposed be both easy to make outside all-in-one machine into Ash or water inlet, influence subsequent use, while being also easy to be encountered, and contingency occurs, influences the service life of all-in-one machine.
Summary of the invention
The purpose of the present invention is to provide a kind of suppressible liquid crystal lift all-in-one machines, to solve in above-mentioned background technique The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of suppressible liquid crystal lift all-in-one machine, packet Outer body and all-in-one machine main body are included, the outer body is the cuboid box-like structure of inner hollow, the inner bottom peace of outer body Equipped with electric lifting pole, the top of the electric lifting pole is welded with the lifting mainboard of cuboid plate, on the lifting mainboard The two sides at end are symmetrically fixedly installed with fixing seat, and the all-in-one machine main body is also cuboid plate structure, all-in-one machine main body broadside Two groups of vertical side bottom end Construction integrations at place have connection column cap, and the connection column cap is connected to the cross through hole of fixing seat In, the top end face middle position of the outer body be also provided with for all-in-one machine main body lifting across lifting groove, the lifting The transversal cross-section of slot is greater than the transversal cross-section of all-in-one machine main body;
The vertical side of the connection column cap is inwardly drilled with inner hole, and close-fitting is connected with across solid respectively in two groups of inner holes The shaft of reservation through-hole, shaft described in two groups are socketed with external gear, the lifting mainboard far from one end of adjacent connection column cap The two side ends of bottom face are fixedly installed with first motor and the second motor respectively, on the arbor of the first motor and the second motor It is socketed with external gear teeth in shaft away from identical transmission gear, and the transmission gear difference in first motor and the second motor It is ratcheting by two groups of transmission toothed chains and the external gear driving in adjacent shafts;
Control button is also equipped on the outer body of the lifting groove side, the control button is provided with multiple groups altogether, point Not with electric lifting pole, first motor, the first electric telescopic rod, the second electric telescopic rod, third electric telescopic rod, the second motor It is electrically connected with all-in-one machine main body.
Preferably, the first motor and the second motor are servo motor, and the rotation of first motor and the second motor Contrary, the transmission gear on motor crankshaft extends lifting mainboard.
Preferably, chamber door, the bottom end of the chamber door are also equipped on one group of vertical side where the outer body broadside It is hingedly fixed by pin shaft and outer body side, the other end is fixed by way of lock connection with the sealing of outer body, and described It latches and is also provided with the catching groove for being used to open chamber door on the chamber door of lower section.
Preferably, the outer body top is located at lifting groove side far from the company of being also equipped on one end where control button The USB interface of all-in-one machine main body is connect, and the display screen of all-in-one machine main body is arranged in towards one where USB interface and control button Among side.
Preferably, the third electric telescopic rod is mounted on the outer internal body roof of lifting groove side, and third is electronic The telescopic end of telescopic rod is fixedly connected with mask top plate, and the size of the mask top plate is greater than the size of lifting groove, and mask top The roof of the top of plate closely outer body.
Preferably, the outer internal body of the lifting groove other side is arranged in close to the position of roof in first electric telescopic rod Place, the telescopic end of the first electric telescopic rod are fixedly connected with cleaning plate, and the cleaning plate is set close to the one side of all-in-one machine main body It is set to hairbrush, and the length of hairbrush is greater than the length of all-in-one machine main body display screen on clean plate.
Preferably, second electric telescopic rod is mounted on the vertical inner wall of outer body of all-in-one machine main body two sides, and second The idler wheel of rubber material is fixedly installed on the telescopic end of electric telescopic rod by movable part.
Preferably, the fixing end of first electric telescopic rod, the second electric telescopic rod and third motor flexible bar is welded It connects on the vertical inner wall of outer body, and the first electric telescopic rod and third motor flexible bar are arranged altogether in the intracorporal side of outer machine There are two groups, be separately fixed at the both ends of cleaning plate and mask top plate, second electric telescopic rod is provided with altogether in outer housing Four groups, and the idler wheel in two groups of electric telescopic rods of all-in-one machine body side extends respectively to the all-in-one machine main body of display screen two sides On.
Technical effect and advantage of the invention: the suppressible liquid crystal lift all-in-one machine, by being provided with hollow box body The outer body of structure, all-in-one machine main body are mounted in outer body, and stretch out outer body by electric lifting pole, and making when not used can be with All-in-one machine is placed on outer internal body to protect, improves the service life of all-in-one machine main body, and by the control on outer body The switch of button control all-in-one machine processed and lifting, it is easy to adjust, while all-in-one machine main body can be by first motor and the second motor Rotation it is tilted in lifting groove, the angle of all-in-one machine main body is adjusted, so that more convenient to use, while two groups of two-way tune of motor Section uses, and it is more accurate to adjust, and mask top plate and cleaning plate are in addition additionally provided in outer body, and mask top plate and cleaning plate are logical Cross the connection of electric telescopic rod, can be hidden in outer body in all-in-one machine main body, lifting groove is sealed, prevent into ash and into Water, while can be cleared up display screen by the hairbrush on cleaning plate in all-in-one machine lifting process again, guarantee display screen each time It is clean when use, while it being not necessarily to manual cleaning, cleaning efficiency is higher.
Detailed description of the invention
Fig. 1 is structural schematic diagram when all-in-one machine main body of the invention rises;
Fig. 2 is all-in-one machine main body and lifting mainboard structure schematic diagram of the invention;
Fig. 3 is main view when all-in-one machine main body of the invention is hidden;
Fig. 4 is side view when all-in-one machine main body of the invention is hidden.
In figure: 1 outer body, 2 all-in-one machine main bodys, 3 display screens, 4 lifting grooves, 5USB interface, 6 control buttons, 7 chamber doors, 8 buttons Slot, 9 locks, 10 lifting mainboards, 11 connection column caps, 12 fixing seats, 13 shafts, 14 transmission toothed chains, 15 first motors, 16 second electricity Machine, 17 electric lifting poles, 18 first electric telescopic rods, 19 cleaning plates, 20 second electric telescopic rods, 21 idler wheels, 22 thirds are electronic Telescopic rod, 23 mask top plates.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of suppressible liquid crystal lift all-in-one machines as shown in Figs 1-4, including outer body 1 and one Body owner body 2, the outer body 1 are the cuboid box-like structure of inner hollow, and the inner bottom of outer body 1 is equipped with electronic liter Column 17 drops, and the top of the electric lifting pole 17 is welded with the lifting mainboard 10 of cuboid plate, 10 upper end of lifting mainboard Two sides be symmetrically fixedly installed with fixing seat 12, the all-in-one machine main body 2 is also cuboid plate structure, and all-in-one machine main body 2 is wide Two groups of vertical side bottom end Construction integrations where side have connection column cap 11, and the connection column cap 11 is connected to the cross of fixing seat 12 Into through-hole, the top end face middle position of the outer body 1 be also provided with for all-in-one machine main body 2 lifting across lifting groove 4, The transversal cross-section of the lifting groove 4 is greater than the transversal cross-section of all-in-one machine main body 2, guarantees that all-in-one machine main body 2 is stretched out of lifting groove 4 Out;
It is described connection column cap 11 vertical side be inwardly drilled with inner hole, and in two groups of inner holes respectively close-fitting be connected with across The shaft 13 of 12 through-hole of fixing seat, shaft 13 described in two groups are socketed with external gear far from one end of adjacent connection column cap 11, institute The two side ends for stating lifting 10 bottom face of mainboard are fixedly installed with first motor 15 and the second motor 16, the first motor 15 respectively Be socketed on the arbor of the second motor 16 with external gear teeth in shaft 13 away from identical transmission gear, and 15 He of first motor Transmission gear on second motor 16 passes through two groups of transmission toothed chains 14 respectively and the external gear driving in adjacent shafts 13 is ratcheting, from And when rotating first motor 15 and the second motor 16, the angle tilt of all-in-one machine main body 2 can be driven by shaft 13;
Control button 6 is also equipped on the outer body 1 of 4 side of lifting groove, the control button 6 is provided with more altogether Group, respectively with electric lifting pole 17, first motor 15, the first electric telescopic rod 18, the second electric telescopic rod 20, third is electronic stretches Contracting bar 22, the second motor 16 and all-in-one machine main body 2 are electrically connected, convenient to realize whole adjusting by control button 6.
Specifically, the first motor 15 and the second motor 16 are servo motor, and first motor 15 and the second motor 16 rotation direction is on the contrary, the transmission gear on its motor crankshaft extends lifting mainboard 10.
Specifically, being also equipped with chamber door 7, the bottom of the chamber door 7 on one group of vertical side where 1 broadside of outer body End is hingedly fixed by pin shaft with outer 1 side of body, and the other end is fixed by way of 9 connection of lock with the sealing of outer body 1, and It is described lock 9 lower section chamber door 7 on be also provided with the catching groove 8 for being used to open chamber door 7, so as to lock 9 unlock when, Neng Goutong It crosses catching groove 8 to open chamber door 7, convenient for the inside detection and maintenance of external body 1.
It is also installed specifically, 1 top of outer body is located on the one end of 4 side of lifting groove far from 6 place of control button There is the USB interface 5 for being integrally connected owner's body 2, and the setting of display screen 3 of all-in-one machine main body 2 is pressed towards USB interface 5 and control Among one side where button 6.
Specifically, the third electric telescopic rod 22 is mounted in 1 inner top wall of outer body of 4 side of lifting groove, third The telescopic end of electric telescopic rod 22 is fixedly connected with mask top plate 23, and the size of the mask top plate 23 is greater than the ruler of lifting groove 4 It is very little, guarantee that mask top plate 23 can seal lifting groove 4, places in outer body 1 into ash and intake, and the top of mask top plate 23 The closely roof of outer body 1.
Specifically, 1 inside of outer body of 4 other side of lifting groove is arranged in close to roof in first electric telescopic rod 18 At position, the telescopic end of the first electric telescopic rod 18 is fixedly connected with cleaning plate 19, and the cleaning plate 19 is close to all-in-one machine main body 2 One side be set as hairbrush, and on clean plate hairbrush length be greater than 2 display screen 3 of all-in-one machine main body length, guarantee display Screen 3 can make an overall screening display screen in lifting.
Specifically, second electric telescopic rod 20 is mounted on the vertical inner wall of outer body 1 of 2 two sides of all-in-one machine main body, The idler wheel 21 of rubber material is fixedly installed on the telescopic end of second electric telescopic rod 20 by movable part.
Specifically, the fixing end of first electric telescopic rod 18, the second electric telescopic rod 20 and third motor flexible bar Be welded on the vertical inner wall of outer body 1, and the first electric telescopic rod 18 and third motor flexible bar in outer body 1 one Side is provided with two groups altogether, is separately fixed at the both ends of cleaning plate 19 and mask top plate 23, second electric telescopic rod 20 is outside Four groups are provided in shell altogether, and the idler wheel 21 in two groups of electric telescopic rods of 2 side of all-in-one machine main body extends respectively to show Shield in the all-in-one machine main body 2 of 3 two sides, it is a when all-in-one machine main body 2 is hidden in outer body 1 so as to change, it is compressed by idler wheel 21 The two sides of all-in-one machine main body 2 processed keep all-in-one machine main body 2 fixed vertically, avoid collision or other unexpected situations cause all-in-one machine The inclination of main body 2, to make to facilitate subsequent lifting.
Specifically, the suppressible liquid crystal lift all-in-one machine, when in use, pressed through the control of electric lifting pole 17 Button 6, electric lifting pole 17 drive the rising of all-in-one machine main body 2, so that all-in-one machine main body 2 be made to stretch out lifting groove 4, need at this time When adjusting the tilt angle of all-in-one machine main body 2, the control button 6 of pressing regulation first motor 15 or the second motor 16, to make First motor 15 or the rotation of the second motor 16, by transmission toothed chain 14 and shaft 13, drive all-in-one machine main body 2 lean forward or after Incline, after the completion of use, when needing to hide all-in-one machine main body 2 to outer body 1, the control for pressing electric lifting pole 17 again is pressed Button 6 declines electric lifting pole 17, and presses the control button 6 of the first electric telescopic rod 18 of regulation, makes the first electric telescopic rod 18 stretching, extensions, hairbrush compress display screen 3, are slowly declined by all-in-one machine main body 2, hairbrush is by 3 complete liquidation of display screen, as integrated owner When body 2 drops to minimum point, the comprehensive of the second electric telescopic rod 20 and third electric telescopic rod 22 is regulated and controled by control button 6 at this time Stretching, extension, the second electric telescopic rod 20 stretching, extension, four groups of idler wheels 21 are supported respectively and are suffered to the all-in-one machine main body 2 of 3 two sides of display screen, are protected Vertical fixation of the all-in-one machine main body 2 in outer housing 1 is demonstrate,proved, while third electric telescopic rod 22 stretches, rise mask top plate 23 will Drop slot 4 is blocked, and is prevented into ash or water inlet.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (8)

1. a kind of suppressible liquid crystal lift all-in-one machine, including outer body (1) and all-in-one machine main body (2), it is characterised in that: institute The cuboid box-like structure that outer body (1) is inner hollow is stated, the inner bottom of outer body (1) is equipped with electric lifting pole (17), the top of the electric lifting pole (17) is welded with the lifting mainboard (10) of cuboid plate, the lifting mainboard (10) The two sides of upper end are symmetrically fixedly installed with fixing seat (12), and the all-in-one machine main body (2) is also cuboid plate structure, all-in-one machine Two groups of vertical side bottom end Construction integrations where main body (2) broadside have connection column cap (11), connection column cap (11) clamping In the cross through hole of fixing seat (12), the top end face middle position of the outer body (1) is also provided with for all-in-one machine main body (2) go up and down across lifting groove (4), the transversal cross-section of the lifting groove (4) is greater than the transversal cross-section of all-in-one machine main body (2);
The vertical side of connection column cap (11) is inwardly drilled with inner hole, and close-fitting is connected with across solid respectively in two groups of inner holes The shaft (13) of reservation (12) through-hole, shaft described in two groups (13) are socketed with external tooth far from one end of adjacent connection column cap (11) The two side ends of wheel, described lifting mainboard (10) bottom face are fixedly installed with first motor (15) and the second motor (16), institute respectively It states and is socketed on the arbor of first motor (15) and the second motor (16) with external gear teeth on shaft (13) away from identical transmission Gear, and the transmission gear in first motor (15) and the second motor (16) passes through two groups of transmission toothed chains (14) and adjacent turn respectively External gear driving on axis (13) is ratcheting;
It is also equipped with control button (6) on the outer body (1) of lifting groove (4) side, the control button (6) is provided with altogether Multiple groups, respectively with electric lifting pole (17), first motor (15), the first electric telescopic rod (18), the second electric telescopic rod (20), Third electric telescopic rod (22), the second motor (16) and all-in-one machine main body (2) are electrically connected.
2. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: the first motor (15) be servo motor with the second motor (16), and first motor (15) and the rotation direction of the second motor (16) on the contrary, its Transmission gear on motor crankshaft extends lifting mainboard (10).
3. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: the outer body (1) it is also equipped with chamber door (7) on one group of vertical side where broadside, the bottom end of the chamber door (7) passes through pin shaft and outer body (1) side is hingedly fixed, and the other end is fixed by way of lock (9) connection with outer body (1) sealing, and the lock (9) The catching groove (8) for being used to open chamber door (7) is also provided on the chamber door (7) of lower section.
4. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: the outer body (1) top is located at lifting groove (4) side and is integrally connected owner's body (2) far from being also equipped on one end where control button (6) USB interface (5), and all-in-one machine main body (2) display screen (3) setting towards USB interface (5) and control button (6) place One side among.
5. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: the third is electronic Telescopic rod (22) is mounted in outer body (1) inner top wall of lifting groove (4) side, the telescopic end of third electric telescopic rod (22) It is fixedly connected with mask top plate (23), the size of the mask top plate (23) is greater than the size of lifting groove (4), and mask top plate (23) roof of top closely outer body (1).
6. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: described first is electronic Telescopic rod (18) is arranged at the internal position close to roof of outer body (1) of lifting groove (4) other side, the first electric telescopic rod (18) telescopic end is fixedly connected with cleaning plate (19), and one side of cleaning plate (19) close to all-in-one machine main body (2) is arranged For hairbrush, and the length of hairbrush is greater than the length of all-in-one machine main body (2) display screen (3) on clean plate.
7. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: described second is electronic Telescopic rod (20) is mounted on the vertical inner wall of outer body (1) of all-in-one machine main body (2) two sides, and the second electric telescopic rod (20) are stretched The idler wheel (21) of rubber material is fixedly installed on contracting end by movable part.
8. a kind of suppressible liquid crystal lift all-in-one machine according to claim 1, it is characterised in that: described first is electronic The fixing end of telescopic rod (18), the second electric telescopic rod (20) and third motor flexible bar is welded on the vertical of outer body (1) On inner wall, and the side of the first electric telescopic rod (18) and third motor flexible bar in outer body (1) is provided with two groups altogether, point It is not fixed on the both ends of cleaning plate (19) and mask top plate (23), second electric telescopic rod (20) is arranged altogether in outer housing There are four groups, and the idler wheel (21) in two groups of electric telescopic rods of all-in-one machine main body (2) side extends respectively to display screen (3) two sides All-in-one machine main body (2) on.
CN201811594603.3A 2018-12-25 2018-12-25 A kind of suppressible liquid crystal lift all-in-one machine Pending CN109686268A (en)

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CN110625565A (en) * 2019-09-27 2019-12-31 安徽浩杨机械有限公司 Press-mounting machine body with strong protection force
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CN108564880A (en) * 2018-04-18 2018-09-21 深圳市奈士迪技术研发有限公司 A kind of smart electronics station board that there is screens switch and block function

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110379331A (en) * 2019-05-27 2019-10-25 陈佳还 A kind of intelligent interaction LED light box
CN110491193A (en) * 2019-08-19 2019-11-22 福州新锐同创电子科技有限公司 A kind of information technology teaching method
CN110625565A (en) * 2019-09-27 2019-12-31 安徽浩杨机械有限公司 Press-mounting machine body with strong protection force
CN112693404A (en) * 2021-01-15 2021-04-23 上汽大通汽车有限公司 Electronic intelligent control's current certificate number tablet storage device
CN113314049A (en) * 2021-05-31 2021-08-27 沛县卓凡科技服务中心 Information display device based on bid
CN113314047A (en) * 2021-05-31 2021-08-27 沛县卓凡科技服务中心 Information display method based on bidding
CN113314047B (en) * 2021-05-31 2022-12-20 法正智能科技有限公司 Information display method based on bidding
CN113314049B (en) * 2021-05-31 2023-03-28 浙江同诚建设管理有限公司 Information display device based on bid

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