CN211786572U - Electric front maintenance large screen box - Google Patents
Electric front maintenance large screen box Download PDFInfo
- Publication number
- CN211786572U CN211786572U CN202020726143.1U CN202020726143U CN211786572U CN 211786572 U CN211786572 U CN 211786572U CN 202020726143 U CN202020726143 U CN 202020726143U CN 211786572 U CN211786572 U CN 211786572U
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- CN
- China
- Prior art keywords
- screen
- frame
- rack
- box
- control motor
- 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.)
- Expired - Fee Related
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- 238000012423 maintenance Methods 0.000 title claims abstract description 19
- 230000007306 turnover Effects 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 230000002146 bilateral effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model relates to an electronic front maintenance large screen box that rear-projection large screen projection wall was used. The screen turnover mechanism comprises a frame box body, a screen frame adhered with a composite screen, fixing frames symmetrically arranged left and right, a screen turnover mechanism, a roller linear pushing mechanism, a gear and rack mechanism, a control motor, a travel switch, a driving module and a personal computer provided with control software. The fixed frame bilateral symmetry is fixed on the box, the gyro wheel sharp ejecting mechanism is connected to the front end, centre and rear end are equipped with rack and travel switch, screen tilting mechanism is connected to the front end of gyro wheel sharp ejecting mechanism, the rear end is equipped with the control motor of output shaft connecting gear, gear and rack meshing form rack and pinion mechanism, the wiring end and the drive module of control motor and travel switch are connected, drive module and personal computer are connected, have the structure precision height, the control advantage such as the control of the integrated concatenation unit of the large amount of being convenient for.
Description
Technical Field
The utility model relates to a physics projection system field, concretely relates to constitute concatenation display unit's electronic front maintenance large screen box body among rear-projection large screen projection wall.
Background
The DLP large screen display splicing wall is formed by splicing a plurality of rear projection display units and is matched with a television wall which is formed by an image processor and has high brightness, high resolution and vivid colors, and can display various network and video signals. The box body of the display unit forming the splicing wall is divided into front maintenance and rear maintenance, and the front maintenance is divided into manual maintenance and electric maintenance. Manual front maintenance needs the engineering personnel through adsorbing the sucking disc on the screen, and the screen is pulled out to hand power sucking disc, harms the screen easily, and the repeated positioning precision is low. The electronic front maintenance box structure that has on the market now is complicated or the structure is imperfect, adopts common finished product sliding guide and electric putter more, and the little screen of guide rail rigidity easily droops, and push rod push-and-pull resistance easily causes the screen to rock greatly, and adopts the remote controller to control, operates complicacy when concatenation unit is in large quantity.
Disclosure of Invention
In order to overcome the defects and deficiencies of the prior art, the utility model aims to provide an electric front maintenance large screen box body which has simple and stable structure, large rigidity and easy operation and can be adjusted by the control software of the PC end.
The utility model discloses a realize through following technical scheme:
an electric front maintenance large screen box body comprises a frame box body, a screen frame adhered with a composite screen, a fixing frame, a screen turnover mechanism, a roller linear pushing mechanism, a gear rack mechanism, a control motor, a travel switch, a driving module and a personal computer provided with control software. The screen turnover mechanism is characterized in that the fixing frame is fixedly connected with the side face of the box body, a roller linear ejecting mechanism is arranged at the front end of the fixing frame, a control motor and a gear are arranged on the roller linear ejecting mechanism, a rack meshed with the gear is fixedly arranged in the middle of the fixing support through a rack frame, a travel switch is arranged at the rear end of the fixing support, the travel switch and the control motor are connected with a driving module through a control cable, the driving module is connected with a personal computer provided with control software through the control cable, and the front end of the roller linear ejecting mechanism is connected with the screen turnover mechanism. The left and right sets of the fixing frame, the screen turnover mechanism, the roller linear pushing mechanism, the gear rack mechanism, the control motor and the travel switch are respectively and symmetrically arranged on two sides of the box body and the screen frame.
The roller linear pushing mechanism comprises a guide rail, a roller shaft, a roller frame, a turnover connecting frame and a roller with a V-shaped groove. The front end of the fixing frame is connected with rollers provided with V-shaped grooves through roller shafts and roller frames, the upper row and the lower row of the rollers are arranged in parallel, the upper end and the lower end of the guide rail are arranged in the V-shaped grooves of the upper row of the rollers and the lower row of the rollers, and the overturning connecting frame is connected with the overturning mechanism. The rear end of the guide rail of the roller linear ejecting mechanism is fixedly connected with a control motor through a motor support, a gear is arranged on an output shaft of the control motor, the gear is meshed with a rack on the fixing frame to form a precise gear-rack transmission mechanism, the control motor drives the gear to rotate when rotating, the roller linear ejecting mechanism connected with the control motor is driven to move linearly back and forth, and the rack frame is provided with an elongated slot for the guide rail to pass through when moving linearly. When the roller linear pushing-out mechanism moves backwards to the initial position, the lower edge of the guide rail presses the travel switch, and the control motor and the pushing-out mechanism stop moving by controlling the driving module. The screen turnover mechanism comprises a screen frame connecting frame, a pneumatic support rod, a hinged support and a turnover positioning frame, wherein the hinged support and the turnover positioning frame are connected with the turnover connecting frame of the roller linear pushing mechanism, the screen frame connecting frame is fixedly connected with a screen frame, and the pneumatic support rod is connected with the hinged support and the screen frame connecting frame.
The utility model discloses for prior art have following beneficial effect:
(1) the push-out mechanism adopts gear and rack transmission, so that the structure precision is high, and the repeated positioning precision is improved.
(2) And PC end software is adopted for control, so that the control of a large number of integrated splicing units is facilitated.
(3) Compared with the V-shaped roller guide rail mechanism of the push-out mechanism in the prior art, the V-shaped roller guide rail mechanism is small in friction resistance, large in structural rigidity, not prone to sagging of a screen and high in structural stability.
Drawings
FIG. 1 is a schematic drawing of the screen of the present invention
FIG. 2 is a side view of the screen in the position of turning the screen out
FIG. 3 is a schematic view of the rack and pinion mechanism of the present invention
Detailed Description
The present invention will be described in further detail with reference to the following examples and accompanying drawings.
The electric front maintenance large screen box shown in fig. 1, fig. 2 and fig. 3 comprises a frame box 1, a screen frame 2 adhered with a composite screen, a fixed frame 9, a screen turnover mechanism 3, a roller linear pushing mechanism 4, a gear rack mechanism 5, a control motor 6, a travel switch 7, a driving module 8 and a personal computer 10 provided with control software.
The fixing frame 9 is fixedly connected with the side face of the box body 1, two fixing frames 9 are respectively fixed on the left side and the right side of the box body 1, the front end of the fixing frame 9 is connected with the roller linear pushing-out mechanism 4, and the roller linear pushing-out mechanism 4 comprises a guide rail 4.1, a roller shaft 4.2, a turnover connecting frame 4.3, a roller frame 4.4 and a roller 4.5 provided with a V-shaped groove. The roller 4.5 with V-shaped grooves is arranged in parallel in two rows on a fixed frame 9 through a roller shaft 4.2 and a roller frame 4.4, the upper end and the lower end of a guide rail 4.1 are arranged in the V-shaped grooves of the upper row of the roller 4.5 and the lower row of the roller 4.4, the front end of the guide rail 4.1 is fixedly connected with a turnover connecting frame 4.3, the rear end of the guide rail 4.1 is fixedly connected with a control motor 6 through a motor bracket 6.1, and an output shaft of the control motor 6 is provided with a gear 5.1. The rack 5.2 is fixed in the middle of the fixing frame 9 through the rack 5.3, the rack 5.3 is provided with a long groove 5.3-1, so that the guide rail 4.1 can pass through the rack when moving forwards and backwards, and the rack 5.2 is meshed with the gear 5.1 to form the accurate rack-and-pinion mechanism 5. The rear lower end of the fixing frame 9 is provided with a travel switch 7, a driving module 8 is arranged in the box body, and the control motor 6 and the travel switch 7 are connected with the driving module 8 through control cables.
The overturning connecting frame 4.3 of the roller linear ejecting mechanism 4 is fixedly connected with the screen overturning mechanism 3, and the screen overturning mechanism 3 comprises a screen frame connecting frame 3.1, a pneumatic support rod 3.2, an overturning positioning frame 3.3 and a hinged support 3.4. The upper end and handing-over support 3.4 fixed connection of gyro wheel sharp ejecting mechanism 4's upset link 4.3, lower extreme and upset locating support 3.3 fixed connection, pneumatic vaulting pole 3.2 one end is connected with articulated support 3.4, and one end is connected with screen frame link 3.1, screen frame link 3.1 and the screen frame 2 fixed connection who glues there is compound screen.
The screen turnover mechanism 3, the roller linear pushing mechanism 4, the gear rack mechanism 5, the control motor 6 and the travel switch 7 are respectively arranged on the two sides of the box body 1 and the screen frame 2 in bilateral symmetry. The wiring terminal of the driving module 8 is connected with a power supply and a PC end through a control cable, and the PC end is provided with control software. When the splicing unit box body is installed or maintained, the control software of the PC end is operated, the splicing unit box body needing to be operated is selected, when the screen moves outwards, relevant options are clicked, the control software controls the contact of the driving module 8 to act, the control motor 6 rotates, the roller linear ejecting mechanism 4 is driven to move outwards linearly under the action of the gear side effect, the screen frame 2 moves outwards linearly under the driving of the roller linear ejecting mechanism 4 and stops after moving to a set distance, the screen frame is overturned through the screen overturning mechanism 3, the screen frame is overturned to a set position under the action of the screen pneumatic overturning mechanism support rod 3.2, and enough space is reserved to facilitate installation and relevant operation of maintenance personnel. When the screen frame 2 needs to be retracted, the corresponding option is selected through the control software, the motor 6 is controlled to rotate reversely, the screen frame 2 moves linearly backwards under the driving of the roller linear pushing mechanism 4, when the screen frame moves to a set position, the lower edge of the guide rail 4.1 presses down the travel switch 7, so that the related contacts in the driving module 8 move, the power supply of the control motor 6 is cut off, and the motor and the roller linear pushing mechanism are controlled to stop moving.
The utility model is suitable for an electronic front maintenance concatenation unit box of large screen projection system, the box leans on the wall to install in indoor during the use, box internally mounted ray apparatus engine.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and the content of the description should not be construed as limiting the present invention.
Claims (5)
1. The electric front maintenance large screen box comprises a frame box body and a screen frame adhered with a composite screen, and is characterized by also comprising a fixing frame, a screen turnover mechanism, a roller linear pushing mechanism, a gear rack mechanism, a control motor, a travel switch, a driving module and a personal computer provided with control software, wherein the fixing frame is fixedly connected with the side face of the box body;
the fixed frame, the roller linear pushing mechanism, the screen turnover mechanism, the control motor, the gear rack mechanism and the travel switch are respectively arranged on two sides of the frame box body in bilateral symmetry.
2. The large screen box of electronic front maintenance of claim 1, characterized in that the control motor pass through motor support fixed connection on the gyro wheel straight line ejecting mechanism.
3. The large screen box of claim 2, characterized in that the rack is fixedly connected to the fixing frame through a rack, and the rack is provided with an elongated slot.
4. The large screen box of electronic front maintenance of claim 3, characterized in that the roller straight line ejecting mechanism includes guide rail, guide rail connecting piece, upset link span, gyro wheel frame, the gyro wheel that is equipped with V type groove.
5. The large screen box of claim 3, wherein the screen turnover mechanism comprises a screen frame connecting frame, a hydraulic stay bar, a hinged support and a turnover positioning frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726143.1U CN211786572U (en) | 2020-05-07 | 2020-05-07 | Electric front maintenance large screen box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020726143.1U CN211786572U (en) | 2020-05-07 | 2020-05-07 | Electric front maintenance large screen box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211786572U true CN211786572U (en) | 2020-10-27 |
Family
ID=72956620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020726143.1U Expired - Fee Related CN211786572U (en) | 2020-05-07 | 2020-05-07 | Electric front maintenance large screen box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211786572U (en) |
-
2020
- 2020-05-07 CN CN202020726143.1U patent/CN211786572U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |