CN215807256U - Portable liftable LED display screen that can splice - Google Patents
Portable liftable LED display screen that can splice Download PDFInfo
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- CN215807256U CN215807256U CN202121346935.7U CN202121346935U CN215807256U CN 215807256 U CN215807256 U CN 215807256U CN 202121346935 U CN202121346935 U CN 202121346935U CN 215807256 U CN215807256 U CN 215807256U
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Abstract
The utility model discloses a portable lifting and splicing LED display screen, which comprises a screen body, a lifting mechanism and a base, wherein the lifting mechanism is arranged on the base; the lifting mechanism comprises a rack, a gear box and a driving unit; the lower end of the rack is fixed on the base, the gear box is connected with the back of the display screen, gears in the gear box are in meshed transmission with the rack, and the driving unit drives the gears to rotate, so that the gear box moves up and down along the rack, and the connecting assembly ascends or descends. The gear and rack are meshed for transmission, the precision is high, fine adjustment can be achieved, errors are reduced, and the precision of the height of the screen body is improved.
Description
Technical Field
The utility model relates to the technical field of LED display screens, in particular to a portable lifting and splicing LED display screen.
Background
Patent document CN 112026636 a discloses a supporting mechanism, a transport cart and a transport system for installation and transport of LED display screens.
In this technical scheme, elevating system includes base, motor, supporting seat, slide rail, mount pad and wire rope to realize the elevating movement of mount pad through motor drive. For the LED display screen which needs to be spliced left and right, the motor drives the mounting seat to move up and down through the traction steel wire rope, the position of the mounting seat cannot be accurately controlled, the height of the LED display screen cannot be finely adjusted, and the LED display screen cannot be spliced accurately.
Simultaneously, among this technical scheme, supporting mechanism is including first support piece and second support piece, and first support piece and second support piece can only realize the adjustment of sharp flexible, can not swing, lead to the transport vechicle can't satisfy different topography and use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the portable lifting and splicing LED display screen is provided according to the defects of the prior art, and the problems that the height of the screen body is not accurately adjusted and the use of different terrains cannot be met are solved.
The technical scheme of the utility model is realized as follows:
a portable lifting and splicing LED display screen comprises a screen body, a lifting mechanism and a base, wherein the lifting mechanism is installed on the base, the screen body is installed on the lifting mechanism, and the lifting mechanism drives the screen body to move up and down;
the lifting mechanism comprises a rack, a gear box and a driving unit; the lower extreme of rack is fixed in the base, the gear box with the back connection of display screen, gear in the gear box with the rack toothing transmission, drive unit drive gear revolve, make the gear box follows rack up-and-down motion, and then make coupling assembling rises or descends.
Furthermore, the gearbox also comprises a box body, and a longitudinal bevel gear and a transverse bevel gear which are arranged in the box body; one end of the longitudinal bevel gear is coaxially connected with the gear, and the other end of the longitudinal bevel gear is in meshing transmission with the transverse bevel gear; the driving unit drives the transverse bevel gear to rotate.
Further, the device also comprises a guide component; the guide assembly comprises a fixed pipe and a movable pipe, the lower end of the fixed pipe is fixed on the base, the movable pipe is connected with the back of the screen body, and the movable pipe is movably inserted into the fixed pipe from top to bottom to enable the screen body to ascend or descend along the fixed pipe.
Furthermore, a clamping component is included; the clamping component comprises a clamping sleeve, a clamping tongue and a control rod; the clamping sleeve is fixed on the back surface of the screen body and movably sleeved outside the rack, and a through hole is formed in the side surface of the clamping sleeve; the control rod is movably inserted into the through hole, the inner end of the control rod drives the clamping tongue in the clamping sleeve to move, and the outer end of the control rod penetrates through the through hole; and driving the control rod to enable the clamping tongue to be embedded into or withdrawn from the tooth groove of the rack.
Furthermore, the clamping assembly also comprises a shifting sheet which is hinged to the clamping sleeve, and one side of the shifting sheet is provided with a convex block; and the poking sheet is poked to enable the convex block to push or be far away from the outer end of the control rod.
Furthermore, the clamping assembly also comprises a tension spring; one end of the tension spring is connected with the back of the screen body, and the other end of the tension spring is connected with one side of the shifting piece, so that the shifting piece keeps the trend of pressing the outer end of the control rod.
Furthermore, the base is provided with a swing arm and a support leg, one end of the swing arm is hinged to the base body, and the other end of the swing arm is connected with the support leg; the swing arm is driven to swing, and the swing arm drives the support leg to move.
Furthermore, the bottom of the base body is provided with a containing groove; the swing arm is driven to swing, so that the swing arm enters or exits the accommodating groove.
Furthermore, the swing arm is provided with a wave ball screw, and the accommodating groove is provided with a positioning hole; when the swing arm enters the accommodating groove, the wave bead screw is embedded into the positioning hole, so that the swing arm is positioned in the accommodating groove.
Further, the support leg comprises a threaded rod and a chassis, and the lower end of the threaded rod is rotatably connected with the chassis; the swing arm is provided with a threaded through hole, and the threaded rod is in threaded connection with the threaded through hole; and rotating the threaded rod to enable the threaded rod to move up and down and drive the chassis to move up and down.
Furthermore, the lower end of the threaded rod is provided with a connecting shaft, and the bottom surface of the connecting shaft is provided with a threaded counter bore; the chassis is provided with a connecting hole; the connecting shaft is movably inserted in the connecting hole, and the connecting bolt is in threaded connection with the threaded counter bore, so that the chassis is rotatably connected to the lower end of the threaded rod.
By adopting the technical scheme, the utility model has the beneficial effects that: the gear and rack are in meshing transmission, so that the precision is high, fine adjustment can be realized, errors are reduced, and the precision of the height of the screen body is improved; meanwhile, the gear and rack meshing transmission is stable in operation and high in reliability; the support legs can be driven to move by driving the swing arms to rotate, so that the use in different terrains can be met; simultaneously, the chassis can up-and-down motion, and then realizes the altitude mixture control of foot support mechanism, further satisfies different topography and uses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the embodiment.
FIG. 2 is an exploded view of the gear case of the embodiment.
FIG. 3 is a sectional view of the locking assembly of the embodiment.
FIG. 4 is a schematic structural view illustrating the swing arm exiting from the storage slot according to the embodiment.
FIG. 5 is a schematic structural view of the swing arm of the embodiment when entering the receiving slot.
FIG. 6 is a cross-sectional view of the footrest mechanism in an embodiment.
In the figure, 100-screen body, 200-lifting mechanism, 210-rack, 220-gear box, 221-box body, 222-longitudinal bevel gear, 223-transverse bevel gear, 224-gear, 230-driving unit, 240-guiding component, 241-fixed pipe, 242-movable pipe, 250-clamping component, 251-clamping sleeve, 252-clamping tongue, 253-control rod, 254-plectrum, 255-convex block, 256-tension spring, 300-base, 310-swing arm, 311-bead screw, 320-supporting foot, 321-threaded rod, 322-chassis, 323-connecting shaft, 324-connecting bolt and 330-accommodating groove.
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.
As shown in fig. 1, in the embodiment of the utility model, a portable liftable and spliceable LED display screen includes a screen body 100, a lifting mechanism 200 and a base 300, wherein the lifting mechanism 200 is installed on the base 300, the screen body 100 is installed on the lifting mechanism 200, and the lifting mechanism 200 drives the screen body 100 to move up and down. The left side and the right side of the back of the screen body 100 are provided with splicing mechanisms, and the two screen bodies 100 which are adjacent to each other from left to right can be spliced from left to right through the splicing mechanisms.
As shown in fig. 1 and 2, the lifting mechanism 200 includes a rack 210, a gear box 220, and a driving unit 230; the lower end of the rack 210 is fixed to the base 300, the gear box 220 is connected to the back of the display screen, the gear 224 in the gear box 220 is engaged with the rack 210 for transmission, and the driving unit 230 drives the gear 224 to rotate, so that the gear box 220 moves up and down along the rack 210, and the connecting assembly ascends or descends.
As shown in fig. 2, the gearbox 220 further includes a box 221, and a longitudinal bevel gear 222 and a transverse bevel gear 223 disposed in the box 221; one end of the longitudinal bevel gear 222 is coaxially connected with the gear 224, and the other end of the longitudinal bevel gear is in meshing transmission with the transverse bevel gear 223; the driving unit 230 drives the lateral bevel gear 223 to rotate. The driving unit 230 is a swing arm or a motor, and in this embodiment, the driving unit 230 is preferably a swing arm.
As shown in fig. 1, the lifting mechanism 200 further includes a guide assembly 240; the guide assembly 240 includes a fixed pipe 241 and a movable pipe 242, the lower end of the fixed pipe 241 is fixed to the base 300, the movable pipe 242 is connected to the back of the screen body 100, and the movable pipe 242 is movably inserted into the fixed pipe 241 up and down to enable the screen body 100 to ascend or descend along the fixed pipe 241. Wherein, the guide assembly 240 can improve the stability of the screen body 100 during the lifting process.
As shown in fig. 1 and 3, the lifting mechanism 200 further includes a locking assembly 250; the detent assembly 250 includes a detent sleeve 251, a detent tongue 252, and a lever 253. The position-limiting sleeve 251 is fixed on the back of the screen body 100 and movably sleeved outside the rack 210, and a through hole is arranged on the side surface of the position-limiting sleeve 251. The control rod 253 is movably inserted into the through hole, the inner end drives the clamping tongue 252 in the clamping sleeve 251 to move, and the outer end penetrates through the through hole; the control rod 253 is driven to make the latch 252 embedded in or withdrawn from the tooth slot of the rack bar 210. When the latch 252 is inserted into the tooth slot of the rack 210, the latch assembly 250 is clamped on the rack 210, and simultaneously fixes the position of the screen body 100, so that the screen body 100 does not descend.
As shown in fig. 3, the locking assembly 250 further includes a pulling plate 254, the pulling plate 254 is hinged to the locking sleeve 251, and a protrusion 255 is disposed on one side of the pulling plate 254; the paddle 254 is toggled to cause the projection 255 to push or move away from the outer end of the lever 253. Wherein, the control rod 253 is pushed to move inwards by pulling the poking sheet 254, so that the latch 252 is embedded into the tooth groove of the rack 210.
As shown in fig. 3, the detent assembly 250 further includes a tension spring 256; one end of the tension spring 256 is connected to the back of the screen body 100 and the other end is connected to one side of the toggle piece 254, so that the toggle piece 254 keeps a tendency to press the outer end of the control rod 253. The tension spring 256 can keep the latch 252 embedded in the tooth groove of the rack 210, and prevent the screen body 100 from falling off due to the latch 252 exiting from the tooth groove by external force.
The use process of the lifting mechanism 200 is as follows: when the rocker arm is manually rotated, the gear box 220 moves up and down along the rack 210 to drive the screen body 100 to ascend or descend, the guide assembly 240 limits the path of the screen body 100, and the ascending or descending stability is improved; when the screen body 100 reaches a proper position, the poking piece 254 is poked, so that the clamping assembly 250 is clamped on the rack 210, and meanwhile, the position of the screen body 100 is fixed, so that the screen body 100 does not descend.
As shown in fig. 1 and 4, the base 300 is provided with a swing arm 310 and a support leg 320, one end of the swing arm 310 is hinged to the body of the base 300, and the other end is connected with the support leg 320; the swing arm 310 is driven to swing, and the swing arm 310 drives the support leg 320 to move.
As shown in fig. 4 and 5, the bottom of the base 300 body is provided with a receiving groove 330; the swing arm 310 is driven to swing, so that the swing arm 310 enters or exits the receiving groove 330. The swing arm 310 is provided with a ball screw 311, and the receiving groove 330 is provided with a positioning hole (not shown); when the swing arm 310 enters the receiving slot 330, the bead screw 311 is inserted into the positioning hole, so that the swing arm 310 is positioned in the receiving slot 330.
As shown in fig. 6, the supporting leg 320 includes a threaded rod 321 and a bottom plate 322, and a lower end of the threaded rod 321 is rotatably connected to the bottom plate 322; the swing arm 310 is provided with a threaded through hole, and the threaded rod 321 is in threaded connection with the threaded through hole; the threaded rod 321 is rotated to move the threaded rod 321 up and down and drive the chassis 322 up and down. The height of the chassis 322 is adjusted, so that the embodiment can be used in uneven terrains, and the applicability is improved.
As shown in fig. 6, the lower end of the threaded rod 321 is a connecting shaft 323, and the bottom surface of the connecting shaft 323 is provided with a threaded counter bore; the chassis 322 is provided with a connecting hole; the connecting shaft 323 is movably inserted in the connecting hole, and the connecting bolt 324 is in threaded connection with the threaded counter bore, so that the chassis 322 is rotatably connected to the lower end of the threaded rod 321. The diameter of the threaded rod 321 is larger than the inner diameter of the connecting hole, and the nut diameter of the connecting bolt 324 is larger than the inner diameter of the connecting hole.
The upper end of the threaded rod 321 is fixedly provided with a handle. The operator can rotate the threaded rod 321 through the handle, and then adjust the height of the chassis 322.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (11)
1. A portable lifting and splicing LED display screen comprises a screen body, a lifting mechanism and a base, wherein the lifting mechanism is installed on the base, the screen body is installed on the lifting mechanism, and the lifting mechanism drives the screen body to move up and down; the method is characterized in that:
the lifting mechanism comprises a rack, a gear box and a driving unit; the lower extreme of rack is fixed in the base, the gear box with the back connection of display screen, gear in the gear box with the rack toothing transmission, drive unit drive gear revolve, make the gear box follows rack up-and-down motion, and then make coupling assembling rises or descends.
2. The portable liftable LED display screen capable of being spliced according to claim 1, wherein: the gearbox also comprises a box body, and a longitudinal bevel gear and a transverse bevel gear which are arranged in the box body; one end of the longitudinal bevel gear is coaxially connected with the gear, and the other end of the longitudinal bevel gear is in meshing transmission with the transverse bevel gear; the driving unit drives the transverse bevel gear to rotate.
3. The portable liftable LED display screen capable of being spliced according to claim 1, wherein: the device also comprises a guide component; the guide assembly comprises a fixed pipe and a movable pipe, the lower end of the fixed pipe is fixed on the base, the movable pipe is connected with the back of the screen body, and the movable pipe is movably inserted into the fixed pipe from top to bottom to enable the screen body to ascend or descend along the fixed pipe.
4. The portable liftable LED display screen capable of being spliced according to claim 1, wherein: comprises a clamping component; the clamping component comprises a clamping sleeve, a clamping tongue and a control rod; the clamping sleeve is fixed on the back surface of the screen body and movably sleeved outside the rack, and a through hole is formed in the side surface of the clamping sleeve; the control rod is movably inserted into the through hole, the inner end of the control rod drives the clamping tongue in the clamping sleeve to move, and the outer end of the control rod penetrates through the through hole; and driving the control rod to enable the clamping tongue to be embedded into or withdrawn from the tooth groove of the rack.
5. The LED display screen capable of being assembled in a lifting way is portable according to claim 4, and is characterized in that: the clamping component also comprises a shifting sheet which is hinged to the clamping sleeve, and one side of the shifting sheet is provided with a convex block; and the poking sheet is poked to enable the convex block to push or be far away from the outer end of the control rod.
6. The LED display screen capable of being assembled in a lifting way is portable according to claim 5, and is characterized in that: the clamping component also comprises a tension spring; one end of the tension spring is connected with the back of the screen body, and the other end of the tension spring is connected with one side of the shifting piece, so that the shifting piece keeps the trend of pressing the outer end of the control rod.
7. The portable liftable LED display screen capable of being spliced according to claim 1, wherein: the base is provided with a swing arm and a support leg, one end of the swing arm is hinged to the base body, and the other end of the swing arm is connected with the support leg; the swing arm is driven to swing, and the swing arm drives the support leg to move.
8. The portable liftable LED display screen capable of being spliced according to claim 7, wherein: the bottom of the base body is provided with a containing groove; the swing arm is driven to swing, so that the swing arm enters or exits the accommodating groove.
9. The portable liftable LED display screen capable of being spliced according to claim 8, wherein: the swing arm is provided with a wave ball screw, and the accommodating groove is provided with a positioning hole; when the swing arm enters the accommodating groove, the wave bead screw is embedded into the positioning hole, so that the swing arm is positioned in the accommodating groove.
10. The portable liftable LED display screen capable of being spliced according to claim 7, wherein: the support legs comprise a threaded rod and a chassis, and the lower end of the threaded rod is rotatably connected with the chassis; the swing arm is provided with a threaded through hole, and the threaded rod is in threaded connection with the threaded through hole; and rotating the threaded rod to enable the threaded rod to move up and down and drive the chassis to move up and down.
11. The portable liftable and spliceable LED display screen of claim 10, wherein: the lower end of the threaded rod is provided with a connecting shaft, and the bottom surface of the connecting shaft is provided with a threaded counter bore; the chassis is provided with a connecting hole; the connecting shaft is movably inserted in the connecting hole, and the connecting bolt is in threaded connection with the threaded counter bore, so that the chassis is rotatably connected to the lower end of the threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121346935.7U CN215807256U (en) | 2021-06-17 | 2021-06-17 | Portable liftable LED display screen that can splice |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121346935.7U CN215807256U (en) | 2021-06-17 | 2021-06-17 | Portable liftable LED display screen that can splice |
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| CN215807256U true CN215807256U (en) | 2022-02-11 |
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| CN202121346935.7U Active CN215807256U (en) | 2021-06-17 | 2021-06-17 | Portable liftable LED display screen that can splice |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941770A (en) * | 2022-05-12 | 2022-08-26 | 山西工程技术学院 | Computer software presentation device |
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2021
- 2021-06-17 CN CN202121346935.7U patent/CN215807256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941770A (en) * | 2022-05-12 | 2022-08-26 | 山西工程技术学院 | Computer software presentation device |
| CN114941770B (en) * | 2022-05-12 | 2023-08-18 | 山西工程技术学院 | Computer software demonstration device |
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