CN112493673A - Conference room demonstration platform based on 5G function control - Google Patents
Conference room demonstration platform based on 5G function control Download PDFInfo
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- CN112493673A CN112493673A CN202011127276.8A CN202011127276A CN112493673A CN 112493673 A CN112493673 A CN 112493673A CN 202011127276 A CN202011127276 A CN 202011127276A CN 112493673 A CN112493673 A CN 112493673A
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- Prior art keywords
- rack
- gear
- display
- driving device
- fixedly connected
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/007—Tables or desks for office equipment, e.g. typewriters, keyboards with under-desk displays, e.g. displays being viewable through a transparent working surface of the table or desk
- A47B21/0073—Tables or desks for office equipment, e.g. typewriters, keyboards with under-desk displays, e.g. displays being viewable through a transparent working surface of the table or desk liftable above the desk top
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0314—Platforms for supporting office equipment
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/04—Tables or desks for office equipment, e.g. typewriters, keyboards characterised by means for holding or fastening typewriters or computer equipment
Abstract
The utility model discloses a conference room demonstration platform based on 5G function control, which particularly relates to the field of demonstration platforms; a conference room demonstration platform based on 5G function control comprises: the device comprises a display, a rotating rod, a rack, a turnover mechanism, a rotating mechanism, a locking mechanism, a lifting mechanism and a second driving device; the turnover mechanism is arranged on one side of the display, so that the display is turned over around the connecting lug; the rotating mechanism is arranged at the rotating rod, so that the display can rotate around the rotating rod; the lifting mechanism is arranged on the rack, so that the display can do lifting motion; the locking mechanism is arranged on one side of the rack, so that the locking effect on the lifting mechanism is realized; the second slidable driving device is arranged between the lifting mechanism and the rotating mechanism, so that the display cannot simultaneously perform lifting motion and rotating motion.
Description
Technical Field
The disclosure belongs to the field of demonstration platforms, and particularly relates to a conference room demonstration platform based on 5G function control.
Background
With the continuous development of technology, 5G is widely used, and the development of 5G comes from the increasing demand for mobile data, and with the development of mobile internet, more and more devices are accessed into the mobile network, and new services and applications emerge endlessly; the function of the conference room demonstration platform can be controlled through the 5G, people can utilize the 5G to control the display in the conference room demonstration platform to realize different actions according to own needs, and the display turns to different directions, however, the adjustable directions of the common display are limited, and the requirements of people cannot be well met.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
To the deficiency of the prior art, the present disclosure aims to provide a conference room demonstration platform based on 5G function control, which solves the problem of insufficient display orientation adjustability in the prior art.
The purpose of the disclosure can be realized by the following technical scheme: a conference room demonstration platform based on 5G function control comprises a display and a mounting rack, and is characterized in that the display is accommodated below the mounting rack when not in work;
furthermore, a support rod is installed on one side of the display, an installation plate is arranged at the upper end of the support rod, and the installation plate is hinged with the display;
furthermore, a turnover mechanism is mounted on one side of the display and used for turning over the display;
furthermore, the turnover mechanism comprises two first racks which are vertically distributed, the first racks penetrate through the mounting plate and are in sliding connection with the mounting plate, a first spring is connected between the first racks and the display, one end of the first spring is fixedly connected with the side surface of the display, and the other end of the first spring is fixedly connected with the end surface of the first rack;
further, a first gear is arranged between the two first racks and is meshed with the two first gears respectively.
Furthermore, a lifting mechanism is mounted at the lower end of the support rod and comprises a slide rail, a rack is arranged at the lower end of the support rod and can slide along the slide rail;
furthermore, one side of the rack is provided with two gears, one side of the second gear is provided with a second driving device, and the second driving device is connected with the mounting frame in a sliding manner;
when the lifting mechanism operates, the second gear is meshed with the rack, and the second zone driving device drives the second gear to rotate so as to drive the rack to slide on the sliding rail.
Furthermore, a rotating rod is arranged on the supporting rod and is in rotating connection with the rack;
furthermore, a rotating mechanism is arranged on the mounting frame and comprises a second spur rack, and the second spur rack is connected with the mounting frame in a sliding manner;
furthermore, a third gear is mounted on the rotating rod, the second spur rack comprises a first meshing tooth and a second meshing tooth, the first meshing tooth and the second meshing tooth are distributed on two mutually vertical surfaces of the second spur rack, and the third gear is meshed with the first meshing tooth;
furthermore, a fourth gear is arranged below the second spur rack, the fourth gear is meshed with the second meshing teeth, and the fourth gear is rotatably connected with the mounting rack;
furthermore, a fifth gear is arranged between the second driving device and the second gear, is coaxial with the second gear, and synchronously rotates under the driving of the second driving device; when the rotating mechanism is operated, the fifth gear and the fourth gear are meshed with each other.
Furthermore, a locking mechanism is mounted at the upper end of the sliding rail and used for locking the lifting motion of the lifting mechanism;
furthermore, the locking mechanism comprises a fixed block and sliding blocks, the sliding blocks are positioned on two sides of the rack, and the lower end face of the fixed block is fixedly connected with the upper end face of the sliding rail;
furthermore, a connecting rod is arranged between the fixed block and the sliding block, one end of the connecting rod is fixedly connected with the surface of the sliding block, and the other end of the connecting rod penetrates through the fixed block and is in sliding connection with the fixed block;
furthermore, a third spring is arranged between the fixed block and the sliding block, and two ends of the third spring are respectively and fixedly connected with the surface of the fixed block and the surface of the sliding block;
furthermore, a third driving device is fixedly connected to the side surface of the mounting frame, the third fixing device is used for driving the second driving device to slide, and a fixed pulley is fixedly mounted on the third fixing device;
furthermore, the tail end of the connecting rod is fixedly connected with a second spring, the other end of the second spring is fixedly connected with a rope, and the other end of the rope crosses over the fixed pulley and is fixedly connected with the second driving device.
The beneficial effect of this disclosure: the adjustability of the display orientation on the demonstration platform is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present disclosure;
FIG. 2 is a schematic view of a mount structure of an embodiment of the disclosure;
FIG. 3 is a schematic view of a support bar configuration according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a lift mechanism according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a rotation mechanism according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural view of a locking mechanism of an embodiment of the present disclosure;
fig. 7 is a schematic structural view of a turnover mechanism according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
As shown in fig. 1. A conference room demonstration platform based on 5G function control comprises a mounting frame 3, wherein the mounting frame 3 is used for mounting and fixing various mechanisms on the demonstration platform;
the demonstration platform comprises a display 1, when the display 1 is in a working state, the display 1 is located above the mounting frame 3, when the display 1 does not work, the display 1 can be stored in the mounting frame 3, and the upper end face of the mounting frame 3 is provided with a abdicating groove 31 for abdicating when the display 1 is in lifting motion.
A supporting rod 4 is installed on one side of the display 1, a turnover mechanism 2 is installed at the upper end part of the supporting rod 4, the turnover mechanism 2 is used for turning over the display 1, and the display 1 and the vertical direction form a certain included angle, so that people can conveniently watch the display;
as shown in fig. 3, the upper end of the support rod 4 is provided with a mounting plate 45, the mounting plate 45 is used for mounting and connecting the display 1, a connecting lug 46 is arranged on one side surface of the mounting plate 45 close to the display 1, and the mounting plate 45 is hinged to the side surface of the display 1 through the upper connecting lug 46 to realize the hinging of the display 1 and the mounting plate 45;
two through grooves 48 are formed in the side face, close to the display 1, of the mounting plate 45, the two through grooves 48 are respectively distributed above and below the connecting lug 46, the two through grooves 48 are symmetrical with each other about the connecting lug 46, and the through grooves 48 penetrate through the mounting plate 45 along the axial direction of the connecting lug 46;
as shown in fig. 7, the turnover mechanism 2 includes two first racks 22, the first racks 22 are respectively installed in two through slots 48, and the first racks 22 are slidably connected with the through slots 48;
a first spring 21 is connected between the first rack 22 and the display 1, one end of the first spring 21 is fixedly connected with the end face of the first rack 22, and the other end of the first spring 21 is fixedly connected with the surface of the display 1, so that the elastic connection between the display 1 and the first rack 22 is realized, when the first rack 22 slides along the through groove 48, the display 1 is driven to turn over around the connecting lug 46 by the first spring 21, and the first spring 21 can play a role in buffering and damping except for being used for connecting the first rack 22 and the display 1, so that the display 1 is guaranteed to be buffered when being turned to start and stop;
a fixing plate 47 is fixedly connected to the side surface of the mounting plate 45 perpendicular to the plane of the connecting lug 46, a first driving device 24 is fixedly connected to the surface of the fixing plate 47, a first gear 23 is connected to a driving shaft of the first driving device 24, and the first gear 23 can be driven to rotate by the first driving device 24;
the first gear 23 is located between the two first racks 22 and simultaneously engaged with the two first racks 22, and when the first gear 23 rotates, the first racks 22 located at upper and lower sides of the first gear 23 respectively slide in opposite directions, thereby achieving stable turnover of the display 1.
As shown in fig. 3, the support rod 4 includes a rotating rod 41, the rotating rod 41 is located at the lower end of the mounting plate 45, the upper end surface of the rotating rod 41 is fixedly connected with the lower end surface of the mounting plate 45, a rack 42 is installed at the lower end of the rotating rod 41, a connecting piece 43 is installed between the rack 42 and the rotating rod 41, the upper end surface of the connecting piece 43 is connected with the lower end surface of the rotating rod 41, and the lower end surface of the connecting piece 43 is rotatably connected with the upper end surface of the rack 42, so that the rotating rod 41 is rotatably;
in some disclosures, the connecting member 43 is a bearing structure, but the structure of the connecting member 43 is not limited to the bearing structure, as long as the rotating connection between the rotating rod 41 and the rack 42 can be realized.
One side of the rack 42 is provided with a lifting mechanism 5, as shown in fig. 4, the lifting mechanism 5 comprises a slide rail 51, the slide rail 51 is installed in a vertical direction, the lower end surface of the slide rail 51 is fixedly connected with the bottom surface, and the rack 42 is matched with a slide groove on the slide rail 51, so that the rack 42 can slide up and down along the slide rail 51;
a second gear 52 is arranged on one side of the rack 42, which is back to the slide rail 51, and when the lifting mechanism 5 runs, the second gear 52 is meshed with the rack 42;
a second driving device 54 is installed at one end of the second gear 52, and when the lifting mechanism 5 operates, the second driving device 54 drives the second gear 52 to rotate, so as to drive the rack 42 to do linear motion along the sliding rail 51, and further drive the display 1 installed at the upper end of the supporting rod 4 to perform lifting motion.
The mounting rack 3 is provided with a rotating mechanism 8, and the rotating mechanism 8 is used for realizing the rotation of the rotating rod 41, so that the display 1 rotates around the rotating rod 41 on the supporting rod 4;
as shown in fig. 2, a sliding groove 32 is formed on one side surface of the mounting bracket 3, the sliding groove 32 penetrates through the mounting bracket 3, the rotating mechanism 4 includes a second spur rack 81, and the second spur rack 81 is installed in the sliding groove 32 and can slide in the sliding groove 32;
as shown in fig. 3, a third gear 44 is fixedly mounted on the support rod 4, and the third gear 44 is located on the rotating rod 41 on the support rod 4;
as shown in fig. 5, the second spur rack 81 includes a first meshing tooth 811 and a second meshing tooth 812, the first meshing tooth 811 and the second meshing tooth 812 are respectively located on two mutually perpendicular faces of the second spur rack 81, the first meshing tooth 811 is meshed with the third gear 44, the fourth gear 82 is mounted at the lower end of the second spur rack 81, and the fourth gear 82 is meshed with the second meshing tooth 812;
a rotating shaft 83 is installed in an inner hole of the fourth gear 82, as shown in fig. 2, a fixing hole 33 is formed in one side surface of the mounting frame 3, the rotating shaft 83 is installed in the fixing hole 33, and the rotating connection between the rotating shaft 83 and the mounting frame 3 is realized through the fixing hole 33;
when the rotating mechanism 8 works, the fourth gear 82 rotates around the rotating shaft 83, the second spur rack 81 is driven by the second meshing tooth 812 to slide along the sliding groove 32, and the rotating rod 41 rotates around its axis by the meshing action of the first meshing tooth 811 and the third gear 44, so that the display 1 rotates around the axis of the rotating rod 41.
As shown in fig. 2, a guide groove 34 is formed on one side surface of the mounting frame 3, the guide groove 34 and the fixing hole 33 are on the same plane, the second driving device 54 is located in the guide groove 34, the third driving device 6 is installed on one side of the second driving device 54, the third driving device 6 is fixed on the side surface of the mounting frame 3, a driving rod of the third driving device 6 is fixedly connected with the side surface of the second driving device 54, and the second driving device 54 can slide in the guide groove 34 under the action of the third driving device 6;
as shown in fig. 4, a fifth gear 53 is installed between the second driving device 54 and the second gear 52, the fifth gear 53 is concentric with the second gear 52, and the second gear 52 and the fifth gear 53 rotate simultaneously under the driving of the second driving device 54;
when the second driving device 54 slides along the guiding groove 34 to the lower part of the rotating shaft 83 under the driving of the third driving device 6, the fifth gear 53 and the fourth gear 82 are engaged with each other, at this time, the lifting mechanism 5 loses power and stops lifting movement, and the rotating mechanism 8 drives the display 1 to rotate around the rotating rod 41 under the action of the second driving device 54;
in this embodiment, the rotating mechanism 8 and the lifting mechanism 5 can only have one of the mechanisms operating at the same time, so as to avoid manual misoperation, and the display 1 rotates while lifting, and further the display 1 and the upper end surface of the mounting frame 3 are interfered and collided.
The upper end of the sliding rail 51 is provided with a locking mechanism 7, and the locking mechanism 7 is used for locking the lifting mechanism 5;
as shown in fig. 6, the locking mechanism 7 includes a fixed block 73 and a sliding block 71, the fixed block 73 and the sliding block 71 are respectively located at two sides of the rack 42, and the lower end surface of the fixed block 73 is fixedly connected with the upper end surface of the slide rail 51;
a connecting rod 74 is installed between the fixed block 73 and the sliding block 71, one end of the connecting rod 74 is connected and fixed with the side surface of the sliding block 71, the other end of the connecting rod 74 penetrates through the fixed block 73, a second spring 75 is fixedly connected to the tail end of the connecting rod 74, a third spring 72 is installed between the fixed block 73 and the sliding block 71, the third spring 72 penetrates through the connecting rod 74, and two ends of the third spring 72 are respectively connected and fixed with the side surface of the fixed block 73 and the side surface of the sliding block 71;
when a pulling force is applied to the end of the second spring 75, the sliding block 71 approaches the fixed block 73 along the connecting rod 74, and when the side surface of the sliding block 71 is in contact with the rack 42 and is tightly attached to the rack 42 under the action of the pulling force, the rack 42 is pressed by the sliding block 71, so that the rack 42 is fixed;
one end of the second spring 75 is connected with a rope 76, the upper end of the third driving device 6 is provided with a fixed pulley 77, the upper end of the second driving device 54 is provided with an installation block 55, one end of the rope 76 is fixedly connected with the second spring 75, and the other end of the rope strides over the fixed pulley 77 and is fixedly connected with the installation block 55 on the second driving device 54;
when the third driving device 6 drives the second driving device 54 to slide towards the rotating shaft 82 on the rotating mechanism 8, the lifting mechanism 5 loses the power source, the mounting block 55 on the second driving device 54 pulls the sliding block 71 to be close to the rack 42 through the rope 76 and the second spring 75, and when the sliding block 71 is in contact with the rack 42, the rack 42 is pressed and fixed, so that the lifting mechanism 5 is prevented from losing the power source, and the display 1 moves downwards under the action of gravity, thereby playing a role in locking the lifting mechanism 5; when the sliding block 71 is in contact with the rack 42, because the second spring 75 is connected between the rope 76 and the connecting rod 74, the second driving device 54 can continue to approach the rotating shaft 82 under the driving of the third driving device 6 by utilizing the stretchability of the second spring 75 until the fifth gear 53 and the fourth gear 82 are meshed with each other;
when the third driving device 6 drives the second driving device 54 to slide from the rotating mechanism 8 towards the lifting mechanism 3, the sliding block 71 is separated from the spur rack 42 under the elastic force of the third spring 72, and at this time, the second driving device 54 can drive the lifting mechanism 5 to operate.
The working principle is as follows:
the display 1 is turned around the connecting lug 46 by installing the turning mechanism 2 at one side of the display 1; the display 1 can rotate around the rotating rod 41 by installing the rotating mechanism 8 on the mounting frame 3; the lifting mechanism 5 is arranged on the rack 42, so that the display 1 can do lifting movement; the locking mechanism 7 is arranged on one side of the rack 42, so that the locking effect on the lifting mechanism 5 is realized; by providing the second driving device 54 that is slidable between the elevating mechanism 5 and the rotating mechanism 8, the display 1 is prevented from performing both elevating movement and rotating movement.
The foregoing illustrates and describes the general principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims.
Claims (4)
1. A conference room demonstration platform based on 5G function control comprises a display (1) and a mounting rack (3), and is characterized in that the display (1) is accommodated below the mounting rack (3) when not in operation;
a supporting rod (4) is installed on one side of the display (1), an installation plate (45) is arranged at the upper end of the supporting rod (4), and the installation plate (45) is hinged with the display (1);
a turnover mechanism (2) is installed on one side of the display (1), and the turnover mechanism (2) is used for turning over the display (1);
the turnover mechanism (2) comprises two first racks (22) which are vertically distributed, the first racks (22) penetrate through the mounting plate (45) and are in sliding connection with the mounting plate (45), a first spring (21) is connected between the first racks (22) and the display (1), one end of the first spring (21) is fixedly connected with the side face of the display (1), and the other end of the first spring is fixedly connected with the end face of the first rack (22);
a first gear (23) is arranged between the two first racks (22), and the first gear (23) is meshed with the two first gears (22) respectively.
2. The conference room demonstration platform controlled based on the 5G function according to claim 1, wherein the lower end of the support rod (4) is provided with a lifting mechanism (5), the lifting mechanism (5) comprises a slide rail (51), the lower end of the support rod (4) is provided with a rack (42), and the rack (42) can slide along the slide rail (51);
one side of the rack (42) is provided with two gears (53), one side of the second gear (53) is provided with a second driving device (54), and the second driving device (54) is in sliding connection with the mounting rack (3);
when the lifting mechanism (5) operates, the second gear (53) is meshed with the rack (42), and the second area driving device (54) drives the second gear (53) to rotate so as to drive the rack (42) to slide on the sliding rail (51).
3. The conference room demonstration platform controlled based on the 5G function according to the claim 1, wherein the support rod (4) is provided with a rotating rod (41), and the rotating rod (41) is rotatably connected with the rack (42);
the mounting rack (3) is provided with the rotating mechanism (8), the rotating mechanism (8) comprises a second straight rack (81), and the second straight rack (81) is connected with the mounting rack (3) in a sliding manner;
a third gear (44) is mounted on the rotating rod (41), the second straight rack (81) comprises a first meshing tooth (811) and a second meshing tooth (812), the first meshing tooth (811) and the second meshing tooth (812) are distributed on two mutually vertical faces of the second straight rack (81), and the third gear (44) is meshed with the first meshing tooth (811);
a fourth gear (82) is arranged below the second straight rack (81), the fourth gear (82) is meshed with the second meshing teeth (812), and the fourth gear (82) is rotatably connected with the mounting rack (3);
a fifth gear (53) is arranged between the second driving device (54) and the second gear (52), the fifth gear (53) is coaxial with the second gear (52), and is driven by the second driving device (54) to synchronously rotate; when the rotating mechanism (8) is operated, the fifth gear (53) and the fourth gear (82) are meshed with each other.
4. The conference room demonstration platform controlled based on the 5G function as claimed in claim 1, wherein a locking mechanism (7) is mounted at the upper end of the slide rail (51), and the locking mechanism (7) is used for locking the lifting motion of the lifting mechanism (5);
the locking mechanism (7) comprises a fixed block (75) and sliding blocks (71), the sliding blocks (71) are positioned on two sides of the rack (42), and the lower end face of the fixed block (75) is fixedly connected with the upper end face of the sliding rail (51);
a connecting rod (74) is arranged between the fixed block (75) and the sliding block (71), one end of the connecting rod (74) is fixedly connected with the surface of the sliding block (71), and the other end of the connecting rod (74) penetrates through the fixed block (75) and is in sliding connection with the fixed block (75);
a third spring (72) is arranged between the fixed block (75) and the sliding block (71), and two ends of the third spring (72) are fixedly connected with the surface of the fixed block (75) and the surface of the sliding block (71) respectively;
a third driving device (6) is fixedly connected to the side face of the mounting frame (3), the third fixing device (6) is used for driving the second driving device (54) to slide, and a fixed pulley (77) is fixedly mounted on the third fixing device (6);
the tail end of the connecting rod (74) is fixedly connected with a second spring (75), the other end of the second spring (75) is fixedly connected with a rope (76), and the other end of the rope (76) crosses over a fixed pulley (77) and is fixedly connected with the second driving device (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127276.8A CN112493673B (en) | 2020-10-20 | 2020-10-20 | Conference room demonstration platform based on 5G function control |
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| CN202011127276.8A CN112493673B (en) | 2020-10-20 | 2020-10-20 | Conference room demonstration platform based on 5G function control |
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| CN112493673A true CN112493673A (en) | 2021-03-16 |
| CN112493673B CN112493673B (en) | 2021-12-07 |
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| CN113280229A (en) * | 2021-06-08 | 2021-08-20 | 秦皇岛职业技术学院 | Display device with adjustable education is used |
| CN113503431A (en) * | 2021-06-22 | 2021-10-15 | 江苏海外集团国际工程咨询有限公司 | Engineering cost is with inviting mark indicating system |
| CN113864584A (en) * | 2021-09-26 | 2021-12-31 | 浙江悠狗网络科技有限公司 | Global smart travel service platform |
| CN114101145A (en) * | 2021-10-26 | 2022-03-01 | 深圳市锐健电子有限公司 | Combined sliding table driven by hydraulic cylinder and gear |
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