Electric image display device

Abstract

The utility model discloses an electric image display device, and relates to the technical field of image display. The image display device comprises an outer frame assembly and an inner frame assembly, the outer frame assembly is provided with a display surface of the image display device, the display surface is provided with a display window, the periphery of the display window is provided with a shielding layer, and the inner frame assembly is sleeved with the outer frame assembly and comprises a driving mechanism, a roller frame, a first rotating roller and a second rotating roller. The first rotating roller and the second rotating roller are installed on the roller frame in parallel at intervals and located on the inner side of the shielding layer, the first rotating roller and the second rotating roller are both connected with the driving mechanism, the first rotating roller and the second rotating roller are used for installing canvas to be displayed, and the driving mechanism is used for driving the first rotating roller and the second rotating roller to rotate synchronously. The canvas is movably displayed in the display window in the preset direction. The canvas of the image display device has good smoothness in the display process, and therefore the display quality of the image picture can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of image display, in particular to an electric image display device. Background Art

[0002] With the continuous development of the image display field, dynamic image display can be realized by moving the canvas with an electric drive mechanism. Since this display method can display more images, it has a good market prospect. However, the electric drive mechanism, the scroll and other components need to occupy a certain space, and the internal space layout of the existing image display device is unreasonable, which leads to limitations in the display of the image and affects the assembly performance of the image display device. Utility Model Content

[0003] In view of the above technical problems, the utility model provides an electric image display device, the structure of which has good assembly performance and can effectively improve the display quality of the image picture.

[0004] The present utility model embodiment provides the following scheme:

[0005] The embodiment of the utility model provides an electric image display device, which includes an outer frame component and an inner frame component:

[0006] The outer frame component is provided with a display surface of the image display device, the display surface is provided with a display window, and the periphery of the display window is provided with a shielding layer;

[0007] The inner frame assembly is sleeved in the outer frame assembly, and the inner frame assembly includes a driving mechanism, a roller frame, a first rotating roller and a second rotating roller, the first rotating roller and the second rotating roller are installed on the roller frame in parallel and spaced apart, and are located on the inner side of the shielding layer, and the first rotating roller and the second rotating roller are both connected to the driving mechanism;

[0008] The first rotating roller and the second rotating roller are used to install the canvas to be displayed, and the driving mechanism is used to drive the first rotating roller and the second rotating roller to rotate synchronously, so that the canvas can be moved and displayed in a preset direction in the display window.

[0009] In an optional embodiment, the outer frame assembly includes:

[0010] External frame;

[0011] The outer baffle is installed on the outer frame, and the display window is arranged on the outer baffle.

[0012] In an optional embodiment, the outer frame assembly is provided with a back side of the image display device, and a back plate is installed on the back side.

[0013] In an optional embodiment, a glass plate or an acrylic plate is installed on the display window.

[0014] In an optional embodiment, the driving mechanism includes:

[0015] A motor, wherein the output shaft of the motor is drivingly connected to the first rotating roller;

[0016] A control terminal connected to a power port of the motor;

[0017] A driving wheel, mounted on the end of the first rotating roller;

[0018] A driven wheel is mounted on the end of the second rotating roller, and the driving wheel and the driven wheel are located on the same side of the first rotating roller and the second rotating roller;

[0019] Transmission parts connect the driving wheel and the driven wheel.

[0020] In an optional embodiment, the driving mechanism further includes:

[0021] The battery box is installed between the outer frame assembly and the inner frame assembly, and the battery box is electrically connected to the control terminal.

[0022] In an optional embodiment, the control terminal includes:

[0023] A power interface, provided on the outer frame of the outer frame assembly, the power interface is used to connect a preset DC power supply;

[0024] A control button, wherein the input end of the control button is connected to the power interface, and the output end of the control button is connected to the power port of the motor.

[0025] In an optional embodiment, the canvas is in a closed strip structure; the inner frame assembly further includes:

[0026] The first drawing roller is installed on the roller frame and is arranged parallel to the first rotating roller;

[0027] The second painting roller is installed on the roller frame and is arranged parallel to the first rotating roller. The canvas is installed around the first painting roller and the second painting roller.

[0028] In an optional embodiment, the inner frame assembly further includes:

[0029] A tension roller, both ends of which are respectively installed in a first mounting hole and a second mounting hole preset on the roller frame, and are arranged parallel to the first rotating roller;

[0030] a first spring connected to one end of the tension roller;

[0031] A second spring is connected to the other end of the tension roller.

[0032] In an optional embodiment, the roller frame includes:

[0033] A pair of crossbeams and a pair of longitudinal beam assemblies, the crossbeams and the longitudinal beam assemblies are connected end to end to assemble a rectangular roller frame; the longitudinal beam assembly includes at least two longitudinal beam sections of spliced ​​structure, which are used to adjust the assembly length of the longitudinal beam assembly after completion of assembly.

[0034] Compared with the prior art, the electric image display device of the utility model has the following advantages:

[0035] The image display device of the utility model comprises an outer frame component and an inner frame component, wherein the outer frame component is provided with a display surface of the image display device, a display window is provided on the display surface, a shielding layer is provided on the periphery of the display window, the inner frame component is sleeved in the outer frame component, the inner frame component comprises a driving mechanism, a roller frame, a first rotating roller and a second rotating roller, the first rotating roller and the second rotating roller are installed on the roller frame in parallel and spaced apart, and are located on the inner side of the shielding layer, the first rotating roller and the second rotating roller are both connected to the driving mechanism, the first rotating roller and the second rotating roller are used to install the canvas to be displayed, and the driving mechanism is used to drive the first rotating roller and the second rotating roller to rotate synchronously, so that the canvas is moved and displayed along a preset direction in the display window. The image display device adopts a modular design of the outer frame component and the inner frame component, and each component can be assembled separately. The shielding layer can be provided so that the components that need to be shielded in the inner frame component are not displayed, so that the structure has better assembly performance; at the same time, the first rotating roller and the second rotating roller rotate synchronously, reducing the pulling force on the canvas when it is moved and displayed, and the canvas has better flatness during the display process, thereby effectively improving the display quality of the image picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the three-dimensional structure of an image display device provided by an embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the three-dimensional structure of the outer frame assembly provided in an embodiment of the utility model;

[0039] Figure 3 A schematic diagram of the three-dimensional structure of the inner frame assembly provided in the embodiment of the utility model Figure 1 ;

[0040] Figure 4 A schematic diagram of the three-dimensional structure of the inner frame assembly provided in the embodiment of the utility model Figure 2 ;

[0041] Figure 5 A schematic diagram of the three-dimensional structure of a roller frame provided in an embodiment of the utility model;

[0042] Figure 6-1 A side schematic diagram of a longitudinal beam assembly provided in an embodiment of the utility model;

[0043] Figure 6-2 A schematic diagram of the installation structure of the canvas provided in an embodiment of the utility model.

[0044] Description of reference numerals: 101-inner frame assembly, 102-driving mechanism, 103-roller frame, 104-first rotating roller, 105-second rotating roller, 106-cross beam, 107-longitudinal beam assembly, 108-first longitudinal beam section, 109-second longitudinal beam section, 110-adjusting section, 111-screw hole, 112-plug connector, 113-bearing hole, 114-driving wheel, 115-driven wheel, 116-transmission member, 117-first painting roller, 118-second painting roller, 119-tension roller, 120-first spring, 121-second spring, 122-first mounting hole, 123-second mounting hole, 124-canvas;

[0045] 201 - outer frame assembly, 202 - display surface, 203 - display window, 204 - shielding layer, 205 - outer frame, 206 - outer baffle, 207 - back plate. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model belong to the scope of protection of the embodiments of the utility model.

[0047] Since the electric image display device involves many parts, each part needs to be installed and connected one by one during assembly. The existing assembly structure needs to be installed in a photo frame, but the internal space of the photo frame is narrow and it is not easy to perform assembly operations, resulting in deficiencies in assembly accuracy and efficiency, which affects the overall assembly performance of the device. The following embodiment of the utility model will specifically describe how to improve the overall assembly performance of the image display device.

[0048] See also Figure 1 , Figure 1The schematic diagram of the structure of an electric image display device provided by the embodiment of the utility model comprises an inner frame assembly 101 and an outer frame assembly 201. The inner frame assembly 101 is mounted inside the outer frame assembly 201, and the inner frame assembly 101 is used to install the canvas to be displayed and drive the canvas to move for display. The outer frame assembly 201 is used to cover and decorate the periphery of the inner frame assembly 101 so that it meets the manufacturing requirements of the image display device.

[0049] The outer frame component 201 is provided with a display surface 202 of the image display device. The end surface of the outer frame component 201 with a larger area is defined as the display surface 202. The display surface 202 is provided with a display window 203. The outer periphery of the display window 203 is provided with a shielding layer 204. The outer frame component 201 can be set as a rectangular structure, or can be set as other structures based on the design requirements of the image display device, such as an elliptical, circular or irregular shape, etc., which is not specifically limited here. Please continue to refer to Figure 1 The outer frame assembly 201 can be prepared as a whole, or it can be made of multiple decorative strips spliced ​​end to end. The transverse section of the decorative strip is "L" shaped, and it can also be set to other shapes with decorative structures. Each decorative strip is spliced ​​after being cut at a 45° angle, forming a display window 203 in the middle, and the decorative strips around the display window 203 form a shielding layer 204. The shielding layer 204 can be used to shield the parts on the inner frame assembly 101 that need to be shielded, so that the image display device meets the manufacturing requirements. The image display device can be a small or medium-sized electric photo album, or a floor-standing display device.

[0050] For example, see Figure 2 , Figure 2 2 is a schematic diagram of the structure of the outer frame assembly 201. The outer frame assembly 201 includes an outer frame 205 and an outer baffle 206. The outer frame 205 can be formed by welding square tubes or by splicing wooden or metal decorative strips. The outer baffle 206 is installed on the outer frame 205, and the display window 203 is set on the outer baffle 206. In order to adapt to different display formats, the outer baffle 206 can be made of cardboard, and the display window 203 is opened in the middle of the outer baffle 206 based on the size of the display format. It can be understood that the outer frame 205 and the outer baffle 206 are set as a detachable structure, and the outer baffle 206 can be replaced according to the size of the display format, thereby improving the applicability of displaying different canvases.

[0051] Since the inner frame assembly 101 is mounted inside the outer frame assembly 201, the inner frame assembly 101 contains many mechanical parts. If dust or other impurities enter the mechanical parts, the parts will be damaged. Based on this, in a specific embodiment, the outer frame assembly 201 is provided with a back side of the image display device. The device surface close to the wall can be set as the back side. The back side is parallel to the display surface 202, and a back plate 207 is installed on the back side. Please continue to refer to Figure 2, the outer circumference of the back plate 207 can be set to be the same as the outer circumference of the outer frame 205. The back plate 207 and the outer baffle 206 can be mounted on the outer frame 205 by fasteners, or can be glued to the outer frame 205, as long as they can be fastened.

[0052] To further prevent dust and other impurities from entering the image display device, a glass plate or an acrylic plate may be installed on the display window 203. The outer dimensions of the glass plate or the acrylic plate may be set to be the same as the outer dimensions of the outer baffle 206, and the glass plate or the acrylic plate may be installed on the outer side of the outer baffle 206 to prevent dust and other impurities from entering the image display device.

[0053] See also Figure 3 and Figure 4 , Figure 3 and Figure 4 They are schematic diagrams of the three-dimensional structure of the inner frame assembly 101 Figure 1 and hint Figure 2 The inner frame assembly 101 includes a driving mechanism 102, a roller frame 103, a first rotating roller 104 and a second rotating roller 105. The first rotating roller 104 and the second rotating roller 105 are installed on the roller frame 103 in parallel and at intervals, and are located on the inner side of the shielding layer 204. The first rotating roller 104 and the second rotating roller 105 are both connected to the driving mechanism 102. The first rotating roller 104 and the second rotating roller 105 are used to install the canvas to be displayed. The driving mechanism 102 is used to drive the first rotating roller 104 and the second rotating roller 105 to rotate synchronously, so that the canvas moves along a preset direction in the display window 203 for display. The inner frame assembly 101 can be shielded by the shielding layer 204, so that the product assembly meets the design requirements of the display device. The shielding objects include the driving mechanism 102, the roller frame 103, the first rotating roller 104 and the second rotating roller 105, etc. The roller frame 103 can be made by welding square tubes, for example, by splicing four square tubes end to end, and then welding a rectangular roller frame 103. The driving mechanism 102 can be set as a sprocket structure, for example, a driving wheel 114 is installed at the end of the first rotating roller 104, and a driven wheel 115 is installed on the second rotating roller 105. The driving wheel 114 and the driven wheel 115 are driven by a chain, and the driving wheel 114 is driven by a motor to rotate, thereby realizing the synchronous rotation of the first rotating roller 104 and the second rotating roller 105. Since the first rotating roller 104 and the second rotating roller 105 can rotate synchronously, the stretching force on the canvas when moving is small, and the canvas will not be stretched and extended, or the motor will be damaged by excessive load. Therefore, the image display device of the utility model has a longer service life. At the same time, there is a large format between the first rotating roller 104 and the second rotating roller 105, which can realize large-format display of the canvas.

[0054] The assembly process of the image display device will be described below. Since the device adopts a modular design as a whole, the structure is set as an inner frame component 101 and an outer frame component 201, and the assembly of the inner frame component 101 and the outer frame component 201 can be implemented separately. Although the inner frame component 101 involves more parts, it is in an open assembly environment when assembled independently, which is convenient for manual and tool assembly operations. When the inner frame component 101 and the outer frame component 201 are assembled separately, the inner frame component 101 is embedded in the outer frame component 201, and the two are fastened. The outer length of the inner frame component 101 can be set to be the same as the inner space size of the outer frame component 201 in the length direction, so that the inner frame component 101 is set in the outer frame component 201, and adjusted in the width direction. When the inner frame component 101 is centered in the inner space of the outer frame component 201 in the width direction, the two are fastened, and the fastening method can be glue bonding or fastener fixing.

[0055] In practical applications, since there are various specifications of image display devices, in order to display images on canvases of different specifications, if the roller frame is welded as a fixed structure, the image display device will not be applicable to displaying canvases of different specifications. Based on this, in a specific embodiment, the roller frame 103 includes a pair of cross beams 106 and a pair of longitudinal beam components 107, see Figure 5 , Figure 5 The figure is a schematic diagram of the three-dimensional structure of the roller frame 103. The roller frame 103 is a rectangular structure, and there are two cross beams 106 and two longitudinal beam assemblies 107. The cross beams 106 and the longitudinal beam assemblies 107 are connected end to end to assemble the roller frame 103 into a rectangular structure. Screw holes 111 can be processed at both ends of the longitudinal beam assemblies 107, and the longitudinal beam assemblies 107 and the ends of the cross beams 106 are fixedly connected through the screw holes 111. The longitudinal beam assembly 107 includes at least two longitudinal beam sections of a spliced ​​structure. By adjusting the length of one longitudinal beam section, the length of the longitudinal beam assembly 107 after assembly can be adjusted, so that the roller frame 103 can be adapted to canvas displays of different specifications.

[0056] Exemplarily, the longitudinal beam assembly 107 includes a first longitudinal beam segment 108, a second longitudinal beam segment 109 and an adjustment segment 110. The first longitudinal beam segment 108 is connected to the end of one of the cross beams; the second longitudinal beam segment 109 is connected to the end of the other cross beam; one end of the adjustment segment 110 is connected to the first longitudinal beam segment 108, and the other end is connected to the second longitudinal beam segment 109. Figure 6-1 , Figure 6-1: is a structural schematic diagram of the longitudinal beam assembly 107, the adjustment section 110 can be set as a hollow square tube, the first longitudinal beam section 108 and the second longitudinal beam section 109 are made of engineering plastics or aluminum alloy, and the first longitudinal beam section 108 and the second longitudinal beam section 109 are processed into a plug connector 112 at one end close to the adjustment section 110. The plug connector 112 is a step structure, and the plug connector 112 is assembled into the adjustment section 110. Since the first longitudinal beam section 108 is used to install the first rotating roller 104, and the second longitudinal beam section 109 is used to install the second rotating roller 105, a bearing hole 113 can be processed on each longitudinal beam section, and the bearing is assembled in the bearing hole 113, and the end of the rotating roller is installed in the bearing to reduce the rotation resistance of the rotating roller.

[0057] Exemplarily, the driving mechanism 102 includes a motor, a control terminal, a driving wheel 114, a driven wheel 115, and a transmission member 116. The output shaft of the motor is in driving connection with the first rotating roller 104; the control terminal is connected to the power port of the motor; the driving wheel 114 is installed at the end of the first rotating roller 104; the driven wheel 115 is installed at the end of the second rotating roller 105, and the driving wheel 114 and the driven wheel 115 are located on the same side of the first rotating roller 104 and the second rotating roller 105; the transmission member 116 connects the driving wheel 114 and the driven wheel 115. Please continue to read Figure 4 The ends of the first rotating roller 104 and the second rotating roller 105 extend to the outside of the roller frame 103. The driving wheel 114 is installed at the end of the first rotating roller 104 outside the roller frame 103. The driven wheel 115 is installed at the end of the second rotating roller 105 outside the roller frame 103, and can be fixed by a keyway structure or a polygonal structure. The transmission member 116 is one of a connecting rod, a synchronous belt, and a ball chain, which can drive the first rotating roller 104 and the second rotating roller 105 to rotate synchronously. The ball chain shown in the figure has the characteristics of no rotation dead point and lightweight use, and is suitable for large-scale industrial application when such products are mass-produced. The motor can be a DC motor module composed of a reducer, or a motor module including an encoder. The encoder can determine the running state of the motor and the number of rotations of the motor. The control terminal can be a controller composed of a power supply, a single-chip microcomputer, and a driver board. The power supply is connected to the single-chip microcomputer and the driver board, and the driver board is connected to the motor. The single-chip microcomputer can control the driver board to output forward and reverse pulses to achieve forward and reverse drive control of the motor. It can also be a controller composed of a power supply and a switch, which can control the motor to rotate.

[0058] It should be noted that when a ball chain is used as the transmission member 116, the driving wheel 114 and the driven wheel 115 use rotating wheels provided with slots, and the slots are engaged with the beads of the ball chain to achieve synchronous rotation of the first rotating roller 104 and the second rotating roller 105.

[0059] The working process of the image display device will be described below. The display device can be used for reciprocating display of a canvas with a planar structure, and can also be used for unidirectional or reciprocating display of a canvas with a closed belt structure. Taking the reciprocating display of a canvas with a planar structure as an example, the two ends of the canvas are wound around the first rotating roller 104 and the second rotating roller 105. When the canvas needs to be moved and displayed, the drive mechanism 102 is powered on, and the drive mechanism 102 drives the first rotating roller 104 and the second rotating roller 105 to rotate synchronously. When the rotation time or the measured number of rotations reaches the corresponding set threshold, the drive mechanism 102 is controlled to reverse, and the canvas moves in the opposite direction, so that the canvas moves back and forth periodically, and the user can observe the image displayed on the canvas through the display window 203. Of course, it can also be applied to a closed belt-shaped structure canvas for unidirectional or reciprocating display. The closed belt-shaped structure canvas is mounted on the first rotating roller 104 and the second rotating roller 105, the driving mechanism 102 is powered on, and the second rotating roller 104 and the second rotating roller 105 rotate synchronously, and the canvas moves for display. The display method can be a continuous unidirectional display, or the motor can be controlled to rotate periodically based on actual needs to achieve reciprocating display of the canvas.

[0060] Exemplarily, the control terminal includes a power interface and a control button. The power interface is arranged on the outer frame 205 of the outer frame assembly 201, and the power interface faces the outside of the outer frame 205. The power interface is used to connect a preset DC power supply. The type of power interface can be selected based on actual needs, such as a TYPE-C interface, a USB interface, etc. The DC power supply can be a power bank or a power adapter. The control button can select a normally closed mechanical switch, the input end of the control button is connected to the power interface, and the output end of the control button is connected to the power port of the motor. After the control button is pressed, the DC power supply is connected to the motor, and the motor starts to rotate; conversely, when the control button is not pressed, the motor stops rotating because the motor is not connected to the power supply.

[0061] In order to improve the applicability of the driving mechanism 102 in different display scenarios, the driving mechanism 102 also includes a battery box, which is installed between the outer frame assembly 201 and the inner frame assembly 101. The battery box can be vertically installed on the side of the roller frame 103, and the battery box is electrically connected to the control terminal. After the dry battery is installed in the battery box, the motor can be powered on through the control terminal to realize the start and stop control of the motor.

[0062] In practical applications, for a canvas in a closed strip structure, if only the first rotating roller 104 and the second rotating roller 105 are provided, the length of the displayed canvas is relatively limited. Based on this, in a specific embodiment, the canvas is in a closed strip structure, and the outer surface of the canvas is the image to be displayed; the inner frame assembly 101 also includes a first drawing roller 117 and a second drawing roller 118. Please continue to refer to Figure 3 , Figure 4 The first drawing roller 117 is installed on the roller frame 103 and is arranged parallel to the first rotating roller 104. The first drawing roller 117 is installed close to the first rotating roller 104. The second drawing roller 118 is installed on the roller frame 103 and is arranged parallel to the first rotating roller 104. The second drawing roller 118 is installed close to the second rotating roller 105. In order to display more images on the canvas, the canvas is installed around the first drawing roller 117 and the second drawing roller 118. The circuitous installation method is not specifically limited, and it can increase the display length of the canvas.

[0063] Since the canvas needs to be pulled and moved by the first rotating roller 104 and the second rotating roller 105, if the tension of the canvas is small, it may cause insufficient friction between the rotating roller and the canvas, resulting in interruption of movement or even inability to move. Based on this, in a specific embodiment, the inner frame assembly 101 also includes a tension roller 119, a first spring 120 and a second spring 121. The two ends of the tension roller 119 are respectively installed in the first mounting hole 122 and the second mounting hole 123 preset on the roller frame 103, and are arranged parallel to the first rotating roller 104. The first mounting hole 122 and the second mounting hole 123 are both set as waist-shaped holes, and their length direction is set along the length direction of the roller frame 103; the first spring 120 is connected to one end of the tension roller 119; the second spring 121 is connected to the other end of the tension roller 119. The first spring 120 and the second spring 121 can be selected as compression springs or tension springs based on actual needs, as long as they can apply elastic force to the tension roller 119. Please refer to Figure 6-1 and 6-2 The tension of the canvas 124 can be increased by the tension roller 119, so that the canvas 124 is closely attached to the first rotating roller 104, the second rotating roller 105, the first drawing roller 117 and the second drawing roller 118, so that the canvas 124 moves more stably, is displayed more smoothly, and the display quality of the canvas 124 is improved. When displaying the canvas 124, the surface between the first rotating roller 104 and the second rotating roller 105 that has not passed through the tension roller 119, the first drawing roller 117 and the second drawing roller 118 can be used as the display surface to increase the display area of ​​the canvas.

[0064] The technical solution provided in the embodiment of the utility model has at least the following technical effects or advantages:

[0065] The image display device includes an outer frame component and an inner frame component. The outer frame component is provided with a display surface of the image display device, and a display window is provided on the display surface. A shielding layer is provided on the periphery of the display window. The inner frame component is set in the outer frame component. The inner frame component includes a driving mechanism, a roller frame, a first rotating roller and a second rotating roller. The first rotating roller and the second rotating roller are installed on the roller frame in parallel and spaced apart and are located on the inner side of the shielding layer. The first rotating roller and the second rotating roller are both connected to the driving mechanism. The first rotating roller and the second rotating roller are used to install the canvas to be displayed. The driving mechanism is used to drive the first rotating roller and the second rotating roller to rotate synchronously so that the canvas can be moved and displayed in a preset direction in the display window. The image display device adopts a modular design of the outer frame component and the inner frame component, and each component can be assembled separately. The shielding layer can be set so that the components that need to be shielded in the inner frame component are not displayed, so that the structure has better assembly performance; at the same time, the first rotating roller and the second rotating roller rotate synchronously to reduce the pulling force on the canvas when it is moved and displayed. The canvas has better flatness during the display process, thereby effectively improving the display quality of the image picture.

[0066] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An electric image display device, characterized in that: The device comprises an outer frame component and an inner frame component: The outer frame assembly is provided with a display surface of the image display device, the display surface is provided with a display window, and the periphery of the display window is provided with a shielding layer; The inner frame assembly is sleeved in the outer frame assembly, and the inner frame assembly includes a driving mechanism, a roller frame, a first rotating roller and a second rotating roller, wherein the first rotating roller and the second rotating roller are installed on the roller frame in parallel and at intervals and are located on the inner side of the shielding layer, and the first rotating roller and the second rotating roller are both connected to the driving mechanism; The first rotating roller and the second rotating roller are used to mount the canvas to be displayed, and the driving mechanism is used to drive the first rotating roller and the second rotating roller to rotate synchronously, so that the canvas is moved and displayed in the display window along a preset direction.

2. The electric image display device according to claim 1, characterized in that: The outer frame assembly comprises: External frame; An outer baffle is installed on the outer frame, and the display window is arranged on the outer baffle.

3. The electric image display device according to claim 1, characterized in that: The outer frame assembly is provided with a back side of the image display device, and a back plate is installed on the back side.

4. The electric image display device according to claim 1, characterized in that: A glass plate or an acrylic plate is installed on the display window.

5. The electric image display device according to claim 1, characterized in that: The driving mechanism comprises: A motor, wherein an output shaft of the motor is drivingly connected to the first rotating roller; A control terminal connected to a power port of the motor; A driving wheel, mounted on the end of the first rotating roller; A driven wheel is mounted on an end of the second rotating roller, wherein the driving wheel and the driven wheel are located on the same side of the first rotating roller and the second rotating roller; A transmission member connects the driving wheel and the driven wheel.

6. The electric image display device according to claim 5, characterized in that: The driving mechanism further comprises: A battery box is installed between the outer frame assembly and the inner frame assembly, and the battery box is electrically connected to the control terminal.

7. The electric image display device according to claim 5, characterized in that: The control terminal comprises: A power interface, provided on the outer frame of the outer frame assembly, the power interface being used to connect to a preset DC power supply; A control button, wherein the input end of the control button is connected to the power interface, and the output end of the control button is connected to the power port of the motor.

8. The electric image display device according to claim 1, characterized in that: The canvas is in a closed belt-shaped structure; the inner frame assembly also includes: A first drawing roller, mounted on the roller frame and arranged parallel to the first rotating roller; The second painting roller is installed on the roller frame and is arranged parallel to the first rotating roller. The canvas is installed around the first painting roller and the second painting roller.

9. The electric image display device according to claim 1, characterized in that: The inner frame assembly also includes: A tension roller, the two ends of which are respectively installed in a first mounting hole and a second mounting hole preset on the roller frame, and are arranged parallel to the first rotating roller; A first spring connected to one end of the tension roller; The second spring is connected to the other end of the tension roller.

10. The electric image display device according to claim 1, characterized in that: The roller frame comprises: A pair of cross beams and a pair of longitudinal beam assemblies, wherein the cross beams are connected end to end with the longitudinal beam assemblies to assemble into a rectangular roller frame; the longitudinal beam assembly comprises at least two longitudinal beam sections of a spliced ​​structure for adjusting the assembly length of the longitudinal beam assembly after assembly.

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