CN212541864U - Vehicle-mounted LED display screen lifting device - Google Patents
Vehicle-mounted LED display screen lifting device Download PDFInfo
- Publication number
- CN212541864U CN212541864U CN202021365880.XU CN202021365880U CN212541864U CN 212541864 U CN212541864 U CN 212541864U CN 202021365880 U CN202021365880 U CN 202021365880U CN 212541864 U CN212541864 U CN 212541864U
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- display screen
- led display
- lifting frame
- screen lifting
- movable seat
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Abstract
The utility model discloses an on-vehicle LED display screen elevating gear, including frame, LED display screen, display screen crane, the LED display screen is installed on the display screen crane. Two movable seat brackets are arranged on the left side and the right side of the rear end part of the frame, and a movable seat is arranged on each movable seat bracket; two electric push rods are respectively hinged on the left side and the right side of the display screen lifting frame. And the movable seat provides displacement compensation for the electric push rod with inconsistent speed in the ascending and descending processes of the LED display screen. The side frames on the two sides of the display screen lifting frame are provided with guide wheel assemblies, and the guide wheel assemblies restrict the display screen lifting frame to move back and forth; and the two sides of the display screen lifting frame are respectively provided with a roller assembly which restricts the left and right movements of the display screen lifting frame. The utility model discloses simple structure can guarantee under two electric putter speed inconsistent circumstances, and adjustable display screen crane goes up and down along the vertical direction.
Description
Technical Field
The utility model relates to a carriage afterbody LED display screen elevating gear of portable special type operation motor vehicle protection vehicle.
Background
In the fields of mobile maintenance operation, mobile construction, temporary lane closure, road construction and traffic accident handling and emergency rescue on other roads such as expressways, urban expressways, elevated roads, overpasses and the like, anti-collision buffer vehicles are mostly adopted to protect the safety of facilities and personnel on construction sites. The tail of the carriage of the anti-collision buffer vehicle is provided with a large-scale LED display screen, various traffic marks and characters are displayed on the large-scale LED display screen, the visibility in daytime reaches more than 300 meters, and early warning indication and traffic guidance are carried out on passing vehicles in advance. The LED display screen drives the LED display screen to ascend and descend through the two electric push rods, the speed of the two electric push rods used for ascending and descending the LED display screen is difficult to achieve to be consistent, the LED display screen can be inclined by vertical ascending and descending, the abrasion of the lifting guide surface of the LED display screen is serious due to the fact that the LED display screen is in the state, the frame of the LED display screen is damaged due to the fact that the frame is heavy, and even the problem that the LED display screen is blocked and cannot ascend and descend is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, lie in overcoming prior art's defect, provide a vehicle-mounted LED display screen elevating gear, guarantee under two electric putter speed inconsistent circumstances, the LED display screen still can realize the vertical lift.
A vehicle-mounted LED display screen lifting device comprises a vehicle frame, an LED display screen and a display screen lifting frame, wherein the LED display screen is arranged on the display screen lifting frame; the bicycle frame is characterized in that two movable seat brackets are arranged on the left side and the right side of the rear end part of the bicycle frame, and a movable seat is arranged on each movable seat bracket; two electric push rods are respectively hinged on the left side and the right side of the display screen lifting frame.
The movable seat support is provided with a guide pillar in the vertical direction; the movable seat comprises a support, a nut and a bolt. The nut and the internal thread on the support are tightly combined with the screw thread of the bolt to connect the nut, the internal thread and the screw thread into a whole. The support is hinged with the electric push rod through a pin shaft, the bolt penetrates through a guide pillar of the movable seat support, and the bolt can move up and down along the guide pillar.
The movable seat is hinged with the electric push rod through a pin shaft, and can move up and down along a guide post of a bracket of the movable seat, when the speeds of the electric push rods of the movable seat are inconsistent, the electric push rod at the lower speed side has a tendency of being lifted by the electric push rod at the higher speed side until the electric push rod is lifted, and the movable seat can move up and down along the guide post of the bracket of the movable seat so as to provide displacement compensation for the lifting of the electric push rod at the lower speed side; in the descending process of the LED display screen, the electric push rod on the fast side has the tendency of being lifted by the electric push rod on the slow side until the electric push rod is lifted, and the movable seat can move up and down along the guide pillar of the movable seat bracket to provide displacement compensation for the electric push rod on the fast side.
Furthermore, guide wheel assemblies are arranged on side frames on two sides of the display screen lifting frame, and the guide wheel assemblies restrict the display screen lifting frame to move back and forth; and the two sides of the display screen lifting frame are respectively provided with a roller assembly which restricts the left and right movements of the display screen lifting frame.
The utility model discloses simple structure retrains display screen crane fore-and-aft direction through the leading wheel subassembly, retrains display screen crane left and right sides direction through wheel components, removes the seat and provides displacement compensation, has solved under two electric putter speed inconsistent circumstances, and adjustable display screen crane is along the vertical direction oscilaltion.
Drawings
Fig. 1 is the utility model relates to a vehicle-mounted LED display screen elevating gear stereogram.
Fig. 2 is the utility model relates to a vehicle-mounted LED display screen elevating gear front view.
Fig. 3 is a front view of the lifting device for lifting the vehicle-mounted LED display screen.
Fig. 4 is a schematic view of the movable base structure.
Fig. 5 is a partially enlarged schematic view of fig. 2.
Fig. 6 is a cross-sectional view of fig. 5C-C.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the utility model relates to an on-vehicle LED display screen elevating gear, including LED display screen 1, display screen crane 2, two electric putter 3, two remove seat 4, two removal seat support 5. The LED display screen 1 is fixedly installed on the display screen lifting frame 2 through bolts, and the display screen lifting frame 2 is located at the tail of the carriage. Two electric putter are located the left and right sides of display screen crane 2 respectively, 3 one ends of electric putter are connected with display screen crane 2 through the round pin axle, and the other end is connected with removal seat 4 through the round pin axle. The movable seat 4 is arranged on a movable seat support 5, and the movable seat support 5 is welded on the frame.
As shown in fig. 4, the movable base 4 includes a support 41, a nut 42, and a bolt 43. The support 41 is hinged with the electric push rod through a pin shaft, the bolt 43 penetrates through a guide post 51 of the movable seat support, the bolt 43 can move up and down along the guide post 51, and the nut 42 and the internal thread on the support are tightly combined with the thread of the bolt 43 to connect the three into a whole. When the speeds of the electric push rods of the moving seat are inconsistent, in the rising process of the LED display screen, the electric push rod at the lower speed side tends to be lifted by the electric push rod at the higher speed side until the electric push rod is lifted, and the moving seat can move up and down along the guide pillar of the bracket of the moving seat so as to provide displacement compensation for the lifting of the electric push rod at the lower speed side; in the descending process of the LED display screen, the electric push rod on the fast side has the tendency of being lifted by the electric push rod on the slow side until the electric push rod is lifted, and the movable seat can move up and down along the guide pillar of the movable seat bracket to provide displacement compensation for the electric push rod on the fast side.
And guide wheel assemblies 6 are arranged on the side frames at the two sides of the display screen lifting frame 2, and the guide wheel assemblies restrict the front and back movement of the display screen lifting frame. And roller assemblies 7 are respectively arranged on two sides of the display screen lifting frame 2 and restrict the left and right movements of the display screen lifting frame. In the ascending or descending process of the LED display screen 1, the guide wheel assembly 6 and the roller assembly 7 respectively restrict the front-back movement and the left-right movement of the display screen lifting frame, so that the LED display screen always moves along the vertical direction.
When the LED display screen 1 rises, the electric push rods 3 drive the display screen lifting frame 2 to rise, and when the speed difference of the two electric push rods 3 is large, the electric push rod 3 on the side with slower movement provides displacement compensation through the moving seat 4, so that the two sides of the LED display screen 1 are kept horizontal;
when the LED display screen 1 descends, the electric push rod 3 drives the display screen lifting frame to descend, when the speed difference of the two electric push rods 3 is large, the electric push rod 3 on the fast moving side provides displacement compensation through the moving seat 4, and the two sides of the LED display screen 1 are kept horizontal.
Claims (3)
1. A vehicle-mounted LED display screen lifting device comprises a vehicle frame, an LED display screen and a display screen lifting frame, wherein the LED display screen is arranged on the display screen lifting frame; the bicycle frame is characterized in that two movable seat brackets are arranged on the left side and the right side of the rear end part of the bicycle frame, and a movable seat is arranged on each movable seat bracket; two electric push rods are respectively hinged on the left side and the right side of the display screen lifting frame.
2. The vehicle-mounted LED display screen lifting device as recited in claim 1, wherein: the movable seat support is provided with a guide pillar in the vertical direction; the movable seat comprises a support, a nut and a bolt; the nut and the internal thread on the support are tightly combined with the screw thread of the bolt to connect the nut, the internal thread and the bolt into a whole; the support is hinged with the electric push rod through a pin shaft, the bolt penetrates through a guide pillar of the movable base support, and the bolt is limited to move up and down along the guide pillar.
3. The vehicle-mounted LED display screen lifting device according to claim 1 or 2, wherein: the side frames on the two sides of the display screen lifting frame are provided with guide wheel assemblies, and the guide wheel assemblies restrict the display screen lifting frame to move back and forth; and the two sides of the display screen lifting frame are respectively provided with a roller assembly which restricts the left and right movements of the display screen lifting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021365880.XU CN212541864U (en) | 2020-07-13 | 2020-07-13 | Vehicle-mounted LED display screen lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021365880.XU CN212541864U (en) | 2020-07-13 | 2020-07-13 | Vehicle-mounted LED display screen lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212541864U true CN212541864U (en) | 2021-02-12 |
Family
ID=74522659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021365880.XU Active CN212541864U (en) | 2020-07-13 | 2020-07-13 | Vehicle-mounted LED display screen lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212541864U (en) |
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2020
- 2020-07-13 CN CN202021365880.XU patent/CN212541864U/en active Active
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