CN111022873A - Multimedia display device with adjustable base - Google Patents
Multimedia display device with adjustable base Download PDFInfo
- Publication number
- CN111022873A CN111022873A CN201911362029.3A CN201911362029A CN111022873A CN 111022873 A CN111022873 A CN 111022873A CN 201911362029 A CN201911362029 A CN 201911362029A CN 111022873 A CN111022873 A CN 111022873A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- gear
- plate
- fixing plate
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1605—Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses multimedia display equipment with an adjustable base, which comprises a bottom plate, wherein a supporting rod is fixedly connected to the bottom plate, one end, far away from the bottom plate, of the supporting rod is fixedly connected with a connecting shaft, a fixing plate is rotatably connected to the connecting shaft, two ends of the fixing plate are fixedly connected with mounting seats, the connecting shaft is rotatably mounted between the mounting seats on the left side and the right side, the fixing plate is in sliding connection with a display, a screw rod is rotatably connected to the fixing plate, a screw rod sleeve is fixedly connected to the back of the display, a rotating sleeve is rotatably connected to the lower end of the screw rod sleeve and is in threaded connection with the screw rod, the rotating sleeve is driven to rotate by a first motor fixedly mounted on the back of the display, a fixed gear is. The invention is a multimedia display device with adjustable base, which has simple principle, easy manufacture, convenient adjustment and good maneuverability.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to multimedia display equipment with an adjustable base.
Background
The multimedia display equipment is used as an important medium for information display, in the era of high speed of information display, the connection of the multimedia display equipment in our life is more and more compact, the multimedia display equipment is widely applied to office teaching occasions, however, most of the existing multimedia display equipment is fixedly installed on a specific position, the mobility is poor, and the adjustability is poor. Therefore, there is a need for a new multimedia display device with an adjustable base that overcomes the above-mentioned deficiencies.
Disclosure of Invention
It is an object of the present invention to provide a multimedia display device with an adjustable base to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
the multimedia display equipment with the adjustable base comprises a bottom plate, a supporting rod is fixedly connected on the bottom plate, one end of the support rod far away from the bottom plate is fixedly connected with a connecting shaft, a fixing plate is rotatably connected on the connecting shaft, the two ends of the fixed plate are fixedly connected with mounting seats, the connecting shaft is rotatably mounted between the mounting seats on the left side and the right side, the fixed plate is connected with the display in a sliding manner, the fixed plate is rotatably connected with a screw rod, the back of the display is fixedly connected with a screw rod sleeve, the lower end of the screw rod sleeve is rotatably connected with a rotating sleeve, the rotating sleeve is in threaded connection with the screw rod, the rotating sleeve is driven to rotate by a first motor fixedly arranged on the back of the display, a fixed gear is fixedly connected on the connecting shaft, the fixed plate is rotatably connected with a movable gear, the movable gear is meshed with the fixed gear and is driven by a second motor fixedly mounted on the fixed plate.
Preferably, the back of the display is fixedly connected with a group of guide rod sleeves, the fixing plate is fixedly connected with a group of guide rods, and the guide rods are slidably mounted in the guide rod sleeves.
Preferably, a gear ring is arranged on the circumferential outer surface of the rotating sleeve, a gear is fixedly connected to an output shaft of the first motor, and the gear is meshed with the gear ring on the rotating sleeve.
Preferably, the moving gear is rotatably connected to the fixing plate through a rotating shaft, and an output shaft of the second motor is fixedly connected to the rotating shaft of the moving gear.
Preferably, install electric telescopic handle on the fixed plate, electric telescopic handle stretches out and draws back to serve terminal fixedly connected with clamp plate, the clamp plate is contradicted and is connected on the circumference surface of connecting axle, and electric telescopic handle stretches out and draws back to serve the cover and be equipped with the spring, the spring both ends are contradicted respectively and are connected on fixed plate and clamp plate.
Preferably, a group of rollers is arranged on the lower end face of the bottom plate, and the rollers are distributed on the lower end face of the bottom plate in an annular array.
Compared with the prior art, the invention has the beneficial effects that: when the display height adjusting device is used, the first motor drives the rotating sleeve to rotate, and the screw rod moves up and down relative to the display under the driving force of the rotating sleeve, so that the height of the display is adjusted; the second motor drives the moving gear to rotate, and the moving gear rotates around the axis of the connecting shaft as the circle center to drive the fixing plate and the display to rotate, so that the inclination angle of the display can be adjusted. The clamp plate compresses tightly the connecting axle under the pressure effect of spring, avoids the fixed plate to take place to rotate, and when carrying out angle modulation to the screen, the flexible end of electric telescopic handle contracts and makes the clamp plate release the connecting axle. The rollers are universal rollers, and the rollers are distributed on the lower end face of the bottom plate in an annular array mode, so that the bottom plate can rotate and move, and the maneuverability of the display is improved. The invention is a multimedia display device with adjustable base, which has simple principle, easy manufacture, convenient adjustment and good maneuverability.
Drawings
FIG. 1 is a rear view of a multimedia display device with an adjustable base;
FIG. 2 is a left side view of a multimedia display device with an adjustable mount.
In the figure: 1-a bottom plate, 2-a support rod, 3-a connecting shaft, 4-a mounting seat, 5-a fixing plate, 6-a guide rod sleeve, 7-a guide rod, 8-a screw rod sleeve, 9-a screw rod, 10-a first motor, 11-a gear, 12-a rotating sleeve, 13-a second motor, 14-a moving gear, 15-a fixed gear, 16-an electric telescopic rod, 17-a pressing plate, 18-a spring, 19-a display and 20-a roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the multimedia display equipment with the adjustable base comprises a bottom plate 1, wherein a supporting rod 2 is fixedly connected to the bottom plate 1, one end, far away from the bottom plate 1, of the supporting rod 2 is fixedly connected with a connecting shaft 3, a fixing plate 5 is rotatably connected to the connecting shaft 3, two ends of the fixing plate 5 are fixedly connected with mounting seats 4, the connecting shaft 3 is rotatably mounted between the mounting seats 4 on the left side and the right side, the fixing plate 5 is in sliding connection with a display 19, a screw rod 9 is rotatably connected to the fixing plate 5, a screw sleeve 8 is fixedly connected to the back of the display 19, a rotating sleeve 12 is rotatably connected to the lower end of the screw sleeve 8, the rotating sleeve 12 is in threaded connection with the screw rod 9, the rotating sleeve 12 is driven to rotate by a first motor 10 fixedly mounted at the back of the display 19, a fixed gear 15 is fixedly connected, the moving gear 14 is meshed with the fixed gear 15, and the moving gear 14 is driven by a second motor 13 fixedly arranged on the fixed plate 5.
When the display device is used, the first motor 10 drives the rotating sleeve 12 to rotate, and the screw 9 moves up and down relative to the display 19 under the driving force of the rotating sleeve 12, so that the height of the display 19 is adjusted; the second motor 13 drives the moving gear 14 to rotate, and simultaneously, the moving gear 14 rotates around the fixed gear 15 with the axis of the connecting shaft 3 as the center of circle, so as to drive the fixing plate 5 and the display 19 to rotate, thereby realizing the adjustment of the inclination angle of the display 19.
Preferably, a set of guide sleeves 6 is fixedly connected to the back of the display 19, a set of guide rods 7 is fixedly connected to the fixing plate 5, and the guide rods 7 are slidably mounted in the guide sleeves 6.
The guide rod 7 is slidably arranged in the guide rod sleeve 6, and the fixed plate 5 is slidably connected with the display 19.
Preferably, a gear ring is arranged on the circumferential outer surface of the rotating sleeve 12, a gear 11 is fixedly connected to the output shaft of the first motor 10, and the gear 11 is engaged with the gear ring on the rotating sleeve 12.
The first motor 10 drives the rotary sleeve 12 to rotate through gear transmission.
Preferably, the movable gear 14 is rotatably connected to the fixed plate 5 through a rotating shaft, and an output shaft of the second motor 13 is fixedly connected to the rotating shaft of the movable gear 14.
The second motor 13 drives the moving gear 14 to rotate, and the moving gear 14 rotates around the axis of the connecting shaft 3 at the same time of rotating, so that the inclination angle of the display 19 is adjusted.
Preferably, an electric telescopic rod 16 is installed on the fixing plate 5, a pressing plate 17 is fixedly connected to the upper end of the telescopic end of the electric telescopic rod 16, the pressing plate 17 is connected to the outer surface of the circumference of the connecting shaft 3 in an abutting mode, a spring 18 is sleeved on the telescopic end of the electric telescopic rod 16, and two ends of the spring 18 are connected to the fixing plate 5 and the pressing plate 17 in an abutting mode respectively.
The pressing plate 17 compresses the connecting shaft 3 under the pressure action of the spring 18, the fixed plate 5 is prevented from rotating, and when the screen 19 is subjected to angle adjustment, the telescopic end of the electric telescopic rod 16 retracts to enable the pressing plate 17 to release the connecting shaft 3.
Preferably, a set of rollers 20 is disposed on the lower end surface of the base plate 1, and the rollers 20 are distributed on the lower end surface of the base plate 1 in an annular array.
The rollers 20 are universal rollers, and the rollers 20 are distributed on the lower end surface of the bottom plate 1 in an annular array, so that the bottom plate 1 can rotate and move, and the maneuverability of the display 19 is improved.
The working principle of the invention is as follows: when the display device is used, the first motor 10 drives the rotating sleeve 12 to rotate, and the screw 9 moves up and down relative to the display 19 under the driving force of the rotating sleeve 12, so that the height of the display 19 is adjusted; the second motor 13 drives the moving gear 14 to rotate, and simultaneously, the moving gear 14 rotates around the fixed gear 15 with the axis of the connecting shaft 3 as the center of circle, so as to drive the fixing plate 5 and the display 19 to rotate, thereby realizing the adjustment of the inclination angle of the display 19. The guide rod 7 is slidably arranged in the guide rod sleeve 6, and the fixed plate 5 is slidably connected with the display 19. The first motor 10 drives the rotary sleeve 12 to rotate through gear transmission. The second motor 13 drives the moving gear 14 to rotate, and the moving gear 14 rotates around the axis of the connecting shaft 3 at the same time of rotating, so that the inclination angle of the display 19 is adjusted. The pressing plate 17 compresses the connecting shaft 3 under the pressure action of the spring 18, the fixed plate 5 is prevented from rotating, and when the screen 19 is subjected to angle adjustment, the telescopic end of the electric telescopic rod 16 retracts to enable the pressing plate 17 to release the connecting shaft 3. The rollers 20 are universal rollers, and the rollers 20 are distributed on the lower end surface of the bottom plate 1 in an annular array, so that the bottom plate 1 can rotate and move, and the maneuverability of the display 19 is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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 (6)
1. Multimedia display equipment with adjustable base, including bottom plate (1), its characterized in that: the display screen is characterized in that a supporting rod (2) is fixedly connected onto the bottom plate (1), one end, far away from the bottom plate (1), of the supporting rod (2) is fixedly connected with a connecting shaft (3), a fixing plate (5) is connected onto the connecting shaft (3) in a rotating mode, mounting seats (4) are fixedly connected to two ends of the fixing plate (5), the connecting shaft (3) is rotatably mounted between the mounting seats (4) on the left side and the right side, the fixing plate (5) is connected with a display (19) in a sliding mode, a screw rod (9) is connected onto the fixing plate (5) in a rotating mode, a screw rod sleeve (8) is fixedly connected to the back face of the display (19), a rotating sleeve (12) is rotatably connected to the lower end of the screw rod sleeve (8), the rotating sleeve (12) is in threaded connection with the screw rod (9), the rotating sleeve (12) is driven to rotate by a first motor, the fixed plate (5) is rotatably connected with a movable gear (14), the movable gear (14) is meshed with a fixed gear (15), and the movable gear (14) is driven by a second motor (13) fixedly mounted on the fixed plate (5).
2. The multimedia display device with adjustable mount of claim 1, wherein: the back of the display (19) is fixedly connected with a group of guide rod sleeves (6), the fixing plate (5) is fixedly connected with a group of guide rods (7), and the guide rods (7) are slidably installed in the guide rod sleeves (6).
3. The multimedia display device with adjustable mount of claim 1, wherein: the gear ring is arranged on the circumferential outer surface of the rotating sleeve (12), a gear (11) is fixedly connected to an output shaft of the first motor (10), and the gear (11) is meshed with the gear ring on the rotating sleeve (12).
4. The multimedia display device with adjustable mount of claim 1, wherein: the moving gear (14) is rotatably connected to the fixing plate (5) through a rotating shaft, and an output shaft of the second motor (13) is fixedly connected with the rotating shaft on the moving gear (14).
5. The multimedia display device with adjustable mount of claim 1, wherein: install electric telescopic handle (16) on fixed plate (5), electric telescopic handle (16) are flexible to be served and are served terminal fixedly connected with clamp plate (17), clamp plate (17) are contradicted and are connected on the circumference surface of connecting axle (3), and electric telescopic handle (16) are flexible to serve the cover and are equipped with spring (18), spring (18) both ends are contradicted respectively and are connected on fixed plate (5) and clamp plate (17).
6. The multimedia display device with adjustable mount of claim 1, wherein: the lower end face of the bottom plate (1) is provided with a group of rollers (20), and the rollers (20) are distributed on the lower end face of the bottom plate (1) in an annular array manner.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957002 | 2019-10-10 | ||
| CN2019109570022 | 2019-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111022873A true CN111022873A (en) | 2020-04-17 |
Family
ID=70213566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362029.3A Pending CN111022873A (en) | 2019-10-10 | 2019-12-26 | Multimedia display device with adjustable base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111022873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023069268A1 (en) * | 2021-10-21 | 2023-04-27 | Steelcase Inc. | Cart assembly |
-
2019
- 2019-12-26 CN CN201911362029.3A patent/CN111022873A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023069268A1 (en) * | 2021-10-21 | 2023-04-27 | Steelcase Inc. | Cart assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111022873A (en) | Multimedia display device with adjustable base | |
| CN212004970U (en) | Multimedia display device with adjustable base | |
| CN108769337B (en) | Rotatable, rising angle regulation's cell phone stand | |
| CN213664634U (en) | Work of fine arts show shelf | |
| CN112432023A (en) | Automatic cloud platform coupling mechanism | |
| CN217932386U (en) | Multi-angle projection device | |
| CN211163744U (en) | Bearing and packing ring assembly device | |
| CN214037452U (en) | Large screen adjusting device | |
| CN209803552U (en) | Electric lifting curtain | |
| CN213207047U (en) | Rotary multimedia display device | |
| CN211779891U (en) | Rotary adjusting base for household sound equipment | |
| CN209231698U (en) | A kind of holographic projector with adjustable projection screen | |
| CN210624030U (en) | Image acquisition assembly based on image and inertia measurement unit | |
| CN210938453U (en) | Ceramic tile turns to device for ceramic tile production | |
| CN114120861A (en) | Telecommunication service information display device | |
| CN220825741U (en) | Grinding device is used in bearing frame production | |
| CN215722231U (en) | Direct broadcasting integrated machine | |
| CN212960520U (en) | Television with rotary supporting structure | |
| CN110594550A (en) | Image acquisition assembly based on image and inertia measurement unit | |
| CN211364075U (en) | Adjustable mechanical drawing display device | |
| CN214306135U (en) | Education training presentation device convenient to use | |
| CN216280391U (en) | Rotating shaft capable of freely rotating and stretching in three-dimensional space | |
| CN217899446U (en) | Teaching projection arrangement convenient to lay | |
| CN215522704U (en) | Infrared tracking camera video monitoring device is adjusted to multi-angle | |
| CN215477750U (en) | Annular pushing mechanism for pharmaceutical chemical processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200417 |
|
| WD01 | Invention patent application deemed withdrawn after publication |