WO2022141657A1

WO2022141657A1 - Portable display device

Info

Publication number: WO2022141657A1
Application number: PCT/CN2021/070506
Authority: WO
Inventors: 王宁; 刘怡彤
Original assignee: 深圳市维世科技有限公司
Priority date: 2020-12-31
Filing date: 2021-01-06
Publication date: 2022-07-07
Also published as: CN112483840A

Abstract

A portable display device, comprising a box body (1); a support assembly, which is accommodated in the box body (1) and can be assembled to form a support frame (2) of a different height; a screen assembly (3), which is contained in the box body (1) in a folded manner or is suspended on the support frame (2) in an unfolded manner, wherein the cable of a winding assembly (4) is connected to the screen assembly (3) by means of a pulley assembly (5), such that the winding assembly (4) drives the screen assembly (3) to unfold when the winding assembly (4) winds. The screen assembly (3) is suspended by means of the support frame (2), so that the screen assembly (3) can be automatically lifted and lowered, and mounting seats of the pulley assembly (5) at the top and the bottom of the support frame (2) can all rotate along a swinging direction of a steel wire (41), so as to adapt to different positions where the steel wire (41) is continuously wound on a steel wire reel (42); a plurality of screen assemblies (3) can be transversely assembled, and it is ensured that the screen assemblies (3) are closely attached to a support rod of the support frame (2) by means of T-shaped snaps so that the screens do not shake, and the T-shaped snap can slide up and down along the support frame (2), that is to say, the T-shaped snap can move up and down following the screen; meanwhile, the base bracket of the support frame (2) can be fixed independently, and can also be fixed in the box body (1), with the box body (1) serving as a support base.

Description

portable display device

technical field

The present invention relates to the field of display technology, in particular to a portable display device.

Background technique

LED display (LED display) is a kind of flat panel display, which is composed of small LED module panels, and is used to display various information such as text, image, video, video signal and so on.

Existing display screens can be roughly divided into two types according to size, one is a large display screen, which is generally fixed on the wall facing the street, and places advertisements and other information, and the other is a small display screen, which is widely used in various electronic equipment. In some specific usage scenarios, such as business travel, it is necessary to temporarily set up a venue to demonstrate relevant information. The effect of the small screen display cannot meet the actual needs, and the large display screen is inconvenient to move.

SUMMARY OF THE INVENTION

The present invention proposes a portable display device in order to solve the technical problem that the large display screen in the prior art is inconvenient to move.

The technical scheme adopted in the present invention is:

The present invention provides a portable display device, comprising at least one display box, the display box includes a box body, and a support assembly that can be spliced in the box to form a support frame of different heights is folded and stored in the box or unfolded and hung. The screen assembly on the support frame is detachably installed in the box with a cable winding assembly with a pull wire, the top of the support frame is provided with a pulley assembly, and the wire winding assembly is fixed on the side facing away from the screen and close to the The bottom of the support frame is connected to the top of the screen assembly via the pulley assembly, so that the screen assembly is driven to unfold when the wire reel assembly takes up the wire.

The pulley assembly includes a pulley, a mounting seat for installing the pulley, and a mounting rod rotatably connected to the mounting seat, and the support frame and the box body are provided with mounting holes for mounting the mounting rod.

The support assembly includes: a base, a plurality of connecting knots detachably connected to the base, and a plurality of first transverse rods and vertical rods that can be inserted into the connecting knots.

The connecting joint includes: a vertical pipe, a first transverse pipe vertically connected to the side surface of the vertical pipe, and two ends of the vertical pipe can be inserted into a vertical rod or a vertical base provided on the base.

Further, the support assembly further includes a plurality of second transverse rods, the connecting joint further includes a second transverse pipe vertically connected to the side surface of the vertical pipe, the first transverse pipe is perpendicular to the second transverse pipe, and the second transverse pipe is perpendicular to the second transverse pipe. Both ends of the transverse rod can be plugged with the second transverse pipe.

Further, the pipe diameters of the two ends of the vertical rod and the horizontal rod are reduced to form a plug-in section that is plugged into the socket, the side of the plug-in section is provided with an elastic limit buckle, and the vertical socket and the horizontal socket are on the There is a limit hole corresponding to the limit buckle.

Preferably, the support frame and the wire winding assembly are installed on the box body or fixed on the ground. When the support frame and the wire winding assembly are installed on the box body, the support frame The bottom is provided with a second pulley assembly, and the pull wire first passes through the second pulley assembly at the bottom and then passes through the pulley assembly at the top.

Further, a plurality of buckles are provided on both sides of the screen assembly, and the buckles are buckled on the support frame and can slide along the support frame. A plurality of rollers are arranged on the back of the supporting surface of the box body supporting support frame.

The pulling wire is a steel wire, and the winding assembly includes: a steel wire, a steel wire drum and a motor that drives the steel wire drum to rotate.

Compared with the prior art, the present invention suspends the screen assembly through the support frame, so that the screen assembly can be automatically raised and lowered, and the mounting bases of the pulley assemblies at the top and bottom of the support frame can rotate following the swing direction of the steel wire to fit the steel wire on the steel wire reel. Different positions of continuous winding; at the same time, multiple screen components can be spliced horizontally, and the T-shaped buckle ensures that the screen components are attached to the support rod of the support frame so that the screen will not shake, and the T-shaped buckle can slide up and down along the support frame. It can follow the screen up and down; the base bracket of the support frame can be taken out of the box and fixed independently, or it can be fixed in the box, with the box as the support base, it has good applicability and makes the operation faster.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a single display box concealing a side wall of a box body in an embodiment of the present invention;

Fig. 2 is a partial enlarged view of the upper part of Fig. 1;

3 is a schematic three-dimensional structure diagram of a single display box concealing a side wall of a box body in an embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of a single display box hiding another angle of the side wall of the box in the embodiment of the present invention;

Fig. 5 is a partial enlarged view of the lower part of Fig. 4;

6 is a schematic three-dimensional structural diagram of a plurality of display boxes hiding another angle of the side wall of the box body according to the embodiment of the present invention;

Fig. 7 is a partial enlarged view of the lower part of Fig. 4;

8 is a schematic structural diagram of a support frame in another embodiment of the embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another embodiment in the embodiment of the present invention;

10 is a schematic structural diagram of displaying multiple screen components side by side according to another embodiment of the present invention;

11 is a schematic structural diagram of a nozzle and a plug-in section in an embodiment of the present invention;

FIG. 12 is an exploded view of the nozzle and the plug section in the embodiment of the present invention;

FIG. 13 is a schematic structural diagram of displaying a plurality of screen components side by side according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for convenience The invention is described and simplified without indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, may be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 to FIG. 4 , the present invention proposes a portable display device, including a display case, which is an air case with rollers for easy portability and movement. The display case can be used alone or in combination. Each display box includes: a box body 1 , a support assembly, a screen assembly 3 , a wire winding assembly 4 and a pulley assembly 5 . The screen assembly 3 is composed of a plurality of upper and lower hinged display units, which can be folded and stored in the box when not in use, and can also be unfolded to form a whole flat display screen. The support assembly is housed in the box, and can be spliced together to form support frames 2 of different heights when in use. As shown in FIG. 1 and FIG. 7 , the support frame 2 can either be directly installed on the box body, or can be directly fixed separately from the box body, for example, installed on the ground or an installation platform. When the screen needs to be used, install the pulley assembly 5 on the top of the support frame, and fix the cable reel assembly 4 on the side facing away from the screen assembly 3 and close to the bottom of the support frame. Component to connect screen components. The wire winding assembly 4 can use the pulley assembly as a fulcrum to pull up the screen assembly along the support frame and unfold it to form a whole flat display screen.

The pulley assembly 5 includes: a pulley, a mounting seat and a mounting rod. The pulley is installed in the mounting seat and can be rotated along the central axis in the mounting seat. The mounting rod is fixed outside the mounting seat and is used to fix the mounting seat and the support frame. There are mounting holes on the rack, which can install mounting rods, so that the pulley assembly can be fixed on the support rack. The mounting seat can be rotated relative to the mounting rod to adapt to different positions of the continuous winding of the wire on the wire drum.

The pulling wire is a steel wire. As shown in Figures 5 and 7, the wire winding assembly 4 includes: a steel wire 41, a steel wire drum 42 and a motor 43 that drives the steel wire drum to rotate. In order to maintain the balance of the screen assembly during the rising process, the top of the screen assembly is connected by two wires at intervals, and two pulley assemblies corresponding to two wires are arranged at intervals on the top of the support frame. Wire on a wire reel. Because the pulley assembly is rotatable, the angle of the pulley assembly will change with the change of the angle between the two steel wires during the process of pulling up and down.

When the support frame and the wire winding assembly 4 are installed on the box, a pulley assembly 5 can also be installed at the bottom of the support frame, which is located in the middle position of the bottom of the support frame, that is, the second pulley assembly. The wire first passes through the second pulley assembly at the bottom and then passes through the pulley assembly at the top, so that the wire sticks to the plane where the support frame is located. In addition, the second pulley assembly has the same structure as the pulley assembly, and its mounting seat can be rotated relative to the mounting rod, so as to adapt to different positions where the steel wire is continuously wound on the steel wire drum.

As shown in Figures 4 and 6, a plurality of buckles 7 are provided on both sides of the screen assembly, specifically a buckle is provided on both sides of a screen unit, and the buckles 7 can be buckled on the support frame and when the screen assembly rises Slide along the vertical bars of the support frame. By setting the buckle, the screen assembly can be attached to the support frame to prevent the screen from shaking. When multiple screen components are spliced horizontally, the two adjacent buckles on the left and right form a T-shaped buckle, and the T-shaped buckle can slide up and down along the support frame, that is, when the screen components are raised or lowered, the T-shaped buckle is simultaneously buckled. The support frame slides up and down, so that the screen assembly sticks to the support frame to keep stable and does not shake during the process of rising or falling.

The buckle 7 specifically includes a fixed part connecting the screen, a buckle part parallel to the screen, and an extension part that vertically connects the fixed part and the buckle part. on the screen assembly, and fasten it on the vertical rod through the buckle part to prevent the screen from shaking.

In one embodiment, the support assembly includes: a base, a connecting knot, a first horizontal rod and a vertical rod, the base is in the shape of a plate, and two vertical bases are spaced on the supporting surface of the base, and each vertical base can be Connect a connecting knot, and form a base bracket by fixing two connecting knots. The base bracket can be fixed on the box body, or can be taken out of the box body and fixed on the ground or installation platform.

The connecting joint includes: a vertical nozzle and a first horizontal nozzle, the first horizontal nozzle is vertically connected to the side surface of the vertical nozzle, and both ends of the first horizontal rod can be inserted into the first horizontal nozzle. Both ends of the vertical rod can be plugged with the vertical pipe. In addition, both ends of the vertical pipe can be plugged with the vertical rod, and can also be plugged with the vertical base on the base, so that the connection knot is fixed on the vertical base. The lower end of the vertical rod of the connecting knot used on the top of the support frame is inserted into the vertical pipe, and the upper end is closed.

In this embodiment, the support assembly may constitute a single-sided support frame.

In another embodiment, as shown in FIG. 8 , the support assembly includes: a base 21 , a connecting knot 22 , a first crossbar 23 , a second crossbar 25 and a vertical rod 24 , the base 21 is in the shape of a plate, and the base 21 supports There are two vertical bases spaced on the surface, each vertical base can be connected to a vertical nozzle 221 of a connecting knot 22, and a base bracket is formed by fixing the two connecting joints, and the base bracket can be fixed on the box body, and also It can be fixed separately, for example directly on the ground or other installation platforms.

The connecting junction includes: a vertical pipe 221, a first transverse pipe 222 and a second transverse pipe 223, the first transverse pipe 222 and the second transverse pipe 223 are vertically connected on the side of the vertical pipe 221, and the first transverse pipe 222 and the second transverse pipe 223 are connected vertically. Two transverse take-overs 223 are vertical. Both ends of the first transverse rod 23 can be plugged with the first transverse pipe 222 , and both ends of the second transverse rod 25 can be plugged with the second transverse pipe 223 . Both ends of the vertical rod 24 can be plugged with the vertical pipe 221, and both ends of the vertical pipe 221 can be plugged with the vertical rod 24, and can also be plugged with the vertical base on the base 21, so that the connection knot is fixed. on a vertical base. The lower end of the vertical rod of the connecting knot used on the top of the support frame is inserted into the vertical pipe, and the upper end is closed.

In this embodiment, the support assembly can form a single-sided support frame. A three-dimensional rectangular support frame can also be formed, and the support effect is better, and the user can choose according to the required height of the support.

As shown in Figure 9, the base bracket can be directly taken out of the box and fixed independently to form a separate support frame 2 (support frame) for supporting the screen assembly 3, the wire winding assembly 4 and the control box of the display assembly are installed on the support under shelf 4. This independently supported structure is more stable and can be selected by the user. As shown in FIG. 10 , by installing and fixing a plurality of support frames 2 (support frames) side by side, the screen assemblies 3 can be displayed side by side in a horizontal direction.

As shown in Fig. 11 and Fig. 12, in order to facilitate disassembly and installation, the pipe diameters of the two ends of the vertical rod and the horizontal rod are reduced to form a connection with the connecting pipe 61 (ie the vertical connecting pipe 221, the first horizontal connecting pipe 222 and the second horizontal connecting pipe 223). The plug-in section 62 (ie the plug-in parts of the first cross-bar 23, the second cross-bar 25 and the vertical rod 24). Mounting holes 621 are respectively provided on the opposite sides of the insertion section 62, and a limit buckle 63 protrudes from the installation hole. The limit buckle 63 is cylindrical and the top is an arc surface that protrudes outward. The V-shaped elastic piece 64, the outer side of the two ends of the elastic piece 64 is fixed with the limit buckle 63, and the limit buckle is pushed out of the installation hole 621 by the elastic force of the elastic piece 64, so that the limit buckle 63 has elasticity, and can be contracted when pressed, Automatically pops up when released. Limiting holes 611 corresponding to the limiting buckles 63 are provided on both the vertical nozzle and the horizontal nozzle. When installing the support frame, insert the plug sections 62 of the vertical rod and the horizontal rod into the corresponding vertical and horizontal pipes, and the limit buckle 63 is first retracted inward. After the plug section 62 is completely inserted and the position of the limit buckle 63 When it is opposite to the position of the limit hole, the limit buckle automatically pops out and snaps into the limit hole, so that the plug-in segment and the nozzle are fixed. When dismantling the support frame, press the limit buckle to make the limit buckle retract inward and come out from the installation hole, and then the plug-in section of the vertical rod and the horizontal rod can be pulled out from the corresponding vertical and horizontal pipes.

The bottom surface of the box body 1 is provided with four rollers 11 , which is convenient for moving the box body to select a suitable display position, as well as facilitating the carrying and handling of the box body (air case).

As shown in Figure 6, Figure 10, and Figure 13, in specific use, multiple boxes 1 can be placed side by side, or multiple support frames can be placed side by side, and multiple unfolded screen components can be spliced together to form a whole piece. display. Allows users to adjust the size of the display screen according to actual needs. Good applicability.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims

A portable display device is characterized in that it includes at least one display box, the display box includes a box body, and a support assembly that can be spliced in the box to form a support frame of different heights is folded and stored in the box or unfolded and hung. The screen assembly on the support frame is detachably installed in the box with a cable winding assembly with a pull wire, the top of the support frame is provided with a pulley assembly, and the wire winding assembly is fixed on the side facing away from the screen and close to the The bottom of the support frame is connected to the top of the screen assembly via the pulley assembly, so that the screen assembly is driven to unfold when the wire reel assembly takes up the wire.
The portable display device according to claim 1, wherein the pulley assembly comprises: a pulley, a mounting seat for installing the pulley, and a mounting rod rotatably connected to the mounting seat, the support frame and the box are provided with Install the mounting holes of the mounting rod.
The portable display device according to claim 1, wherein the support assembly comprises: a base, a plurality of connecting knots detachably connected to the base, a plurality of first horizontal bars and vertical rods that can be plugged with the connecting knots rod.
The portable display device according to claim 3, wherein the connecting joint comprises: a vertical pipe, a first horizontal pipe vertically connected to the side surface of the vertical pipe, and both ends of the vertical pipe can be plugged. A vertical base set on a vertical pole or base.
The portable display device according to claim 4, wherein the support assembly further comprises a plurality of second transverse rods, the connecting knot further comprises a second transverse pipe vertically connected to the side of the vertical pipe, the The first transverse pipe is perpendicular to the second transverse pipe, and both ends of the second transverse rod can be inserted into the second transverse pipe.
The portable display device according to claim 4, wherein the pipe diameters of the two ends of the vertical rod and the horizontal rod are reduced to form a plug-in segment that is plugged into the socket, and the side of the plug-in segment is provided with an elastic A limit buckle, the vertical pipe and the horizontal pipe are provided with limit holes corresponding to the limit button.
The portable display device according to claim 1, wherein the support frame and the wire winding assembly are mounted on the box or fixed on the ground, and when the support frame and the wire winding assembly When installed on the box, the bottom of the support frame is provided with a second pulley assembly, and the pull wire first passes through the second pulley assembly at the bottom and then passes through the pulley assembly at the top.
The portable display device according to claim 1, wherein a plurality of buckles are provided on both sides of the screen assembly, and the buckles are buckled on the support frame and can slide along the support frame.
The portable display device according to claim 1, wherein when the screen assemblies of a plurality of the display boxes are unfolded, the support frames or the display boxes are moved side by side so that the screen assemblies are spliced together to form a display surface.
The portable display device according to claim 1, wherein a plurality of rollers are provided on the back of the supporting surface of the box supporting support frame.