CN111710258B

CN111710258B - Recyclable signboard

Info

Publication number: CN111710258B
Application number: CN202010680510.3A
Authority: CN
Inventors: 周建伟; 谢世森; 刘继红; 聂坤
Original assignee: Hangzhou Aipulai Label Manufacturing Co ltd
Current assignee: Hangzhou Aipulai Label Manufacturing Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-06-14
Anticipated expiration: 2040-07-15
Also published as: CN111710258A

Abstract

The invention belongs to the field of signboards, and particularly relates to a recyclable signboard which comprises a signboard body, a front display layer, a driving layer and a cover body, wherein an installation cavity is arranged in the signboard body, a first transparent plate is arranged on the front side of the signboard body, the front display layer is movably connected in the installation cavity, an accommodating cavity is formed in the front display layer, a second transparent plate is arranged on the front side of the front display layer, iron powder is arranged in the accommodating cavity, a plurality of grooves are distributed on one side of the accommodating cavity, the driving layer is movably connected in the installation cavity, a first electromagnetic area is arranged on the front side of the driving layer, an electromagnet is arranged in the first electromagnetic area, a main control input port is arranged beside the driving layer, the cover body is clamped and fixed on one side of the signboard body and covers the opening of the installation cavity, and a jack is arranged on the cover body. The signboard has the advantages of simple structure installation, convenient disassembly and replacement, capability of displaying different signboard contents in a recycling way and wide application range.

Description

Recyclable signboard

Technical Field

The invention belongs to the field of signboard, and particularly relates to a recyclable signboard.

Background

The signboard is a signboard marked for a visual effect, and plays a role in prompting through the identification content attached to the signboard. The signboard has wide application and range and can be basically seen in various industries. With the continuous development of the technology in this field, the existing signboard has been developed into two major categories including a general plate-type signboard and an electrified electrooptical plate signboard, the plate-type signboard is roughly divided into an acrylic signboard and a metal signboard, the electrooptical plate signboard realizes a monochrome or color expression effect with a light emitting diode or a luminous tube, and can be divided into five major categories of a noctilucent electrooptical plate, an LCD, an LED, a CRT, an FDT, and the like with a luminous diode and an expression mode. The two types of signboard respectively have respective advantage and disadvantage, and plate-type signboard is lower in cost, and once damages the change convenience, but once the shaping, just can sign a content, if need sign other contents, just need the change. The electro-optical plate sign is through the circular telegram light-emitting diode in it and show predetermined content, and it can be through changing different sign content of input signal output, but the long-time circular telegram output power consumption is big, and the relative board-like sign of electro-optical plate sign, its cost is higher.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned deficiencies in the prior art and providing a recyclable signboard.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a signboard capable of being recycled is characterized by comprising a signboard body, wherein a mounting cavity with a cavity opening positioned at one end of the signboard body is arranged in the signboard body, a sliding groove is arranged in the mounting cavity, a buckle is arranged at the cavity opening of the mounting cavity, and a first transparent plate is arranged on the front side of the signboard body; the front display layer is movably connected in the mounting cavity through a sliding chute, an accommodating cavity is formed in the front display layer, a second transparent plate is arranged on the front side of the front display layer, and iron powder is arranged in the accommodating cavity; a plurality of grooves are distributed on one side of the accommodating cavity, and the lower parts of the grooves are of cambered surface structures; the driving layer is movably connected in the mounting cavity through a sliding groove, a first electromagnetic area is arranged on the front side of the driving layer, and a plurality of electromagnets corresponding to the grooves are arranged in the first electromagnetic area; a main control and input port connected with the first electromagnetic region is arranged beside the driving layer; the cover body is fixed on one side of the plate body through the clamping connection of the buckle opening and the buckle and covers the cavity opening of the installation cavity, the inner side of the cover body is provided with an adapter opening matched with the input port, and the outer side of the cover body is provided with an insertion hole connected with the adapter opening; when the front display layer and the driving layer are installed in the installation cavity, the inner side of the first transparent plate is connected with the outer side of the second transparent plate, and the rear side of the front display layer is connected with the first electromagnetic area; when the cover body is fixed on one side of the card body, the switching port is connected with the input port.

Preferably, the grooves are arranged at equal intervals, a plurality of movable grooves are arranged in one side of the front display layer, which is provided with the grooves, one movable groove corresponds to one row of grooves and is positioned below the corresponding groove, movable rods capable of moving up and down along the movable grooves are arranged in the movable grooves, and transparent stop blocks corresponding to the grooves are fixed on the movable rods; the bottom of the groove is provided with a through hole connected with the corresponding movable groove, and the transparent stop block is positioned in the through hole and can move up and down along the through hole; one end of the front display layer is provided with a connecting rod fixedly connected with one end of the movable rod, and the top end of the connecting rod is provided with a retaining ring.

Preferably, the inner side of the cover body is provided with a clamping block which is matched with the retaining ring and can move up and down, and the outer side of the cover body is provided with a switch which is in transmission connection with the clamping block.

Preferably, the rear side of the card body is provided with a fixing structure.

Preferably, a rear display layer is further arranged in the mounting cavity, the structure of the rear display layer is symmetrical to that of the front display layer, a third transparent plate is arranged on the rear side of the board body, and a second electromagnetic area which is symmetrical to the first electromagnetic area in structure is arranged on the rear side of the driving layer; when the front display layer, the driving layer and the rear display layer are installed in the installation cavity, the rear display layer is located on the other side of the driving layer, the second electromagnetic area is connected with one side of the rear display layer, and the other side of the rear display layer is connected with the third transparent plate.

Preferably, the top of the card body is provided with a fixed structure.

Preferably, the fixing structure comprises an installation shaft, fixing frames symmetrically sleeved on the installation shaft, springs sleeved on the installation shaft and located between the fixing frames, a large clamping jaw and a small clamping jaw which are hinged on the installation shaft and connected with the springs, the bottom of the fixing frame is fixed with the top of the mahjong piece body, the large clamping jaw and the small clamping jaw keep a clamping trend under the action of the springs, and a large through groove for the small clamping jaw to pass through is formed in the large clamping jaw; the bottom of the small jaw is provided with a hanging rod, the hanging rod is rotatably connected with a lock hook, one end of the lock hook is provided with a hook head, the bottom of the large jaw is provided with a hook rod matched with the hanging rod, and the hook head hooks the hook rod to keep the large jaw and the small jaw open; the mounting bracket still includes the bracing piece that runs through the installation axle perpendicularly, and the bracing piece bottom meets with the peg pole body, and the bracing piece top is fixed with the transfer line that is located between big jack catch and the little jack catch.

Preferably, the iron powder is coated with a colored coating, the coated colored coating can improve the ornamental value of the content of the mark, and the coated colored coating can prevent the iron powder from contacting with air and reduce the possibility of rusting.

Compared with the prior art, the invention has the following advantages and effects: each structure installation is simple, and it is convenient to dismantle the change, but the different sign content of cyclic utilization demonstration, signboard applicable wide range, and the adjustability is strong.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a rear axial view of embodiment 1.

Figure 3 is a schematic structural view of the card body part of embodiment 1.

Figure 4 is a schematic structural diagram of the card body of embodiment 1.

FIG. 5 is a schematic view of the structure of a front display layer of example 1.

Fig. 6 is a front view of the front display layer of example 1.

FIG. 7 is a cross-sectional view a-a of the front display layer of example 1.

Fig. 8 is a schematic structural diagram of a driving layer in embodiment 1.

Fig. 9 is a schematic structural view of the cover in embodiment 1.

Fig. 10 is a schematic structural diagram of embodiment 2 of the present invention.

Figure 11 is a schematic structural view of the card body part of embodiment 2.

FIG. 12 is a schematic view showing the structure of a display layer in front of example 2.

Fig. 13 is a front view of the front display layer of example 2.

FIG. 14 is a top view of the front display layer of example 2.

FIG. 15 is a cross-sectional view taken along line b-b of the front display layer of example 2.

FIG. 16 is a c-c cross-sectional view of the front display layer of example 2.

Fig. 17 is an enlarged view of a portion a in fig. 15.

Fig. 18 is an enlarged view of a portion B in fig. 16.

Fig. 19 is a schematic structural view of the cover in embodiment 2.

Fig. 20 is a side view of the cover of example 2.

Fig. 21 is a schematic structural diagram of embodiment 3 of the present invention.

Figure 22 is a schematic structural view of the card body part of embodiment 3.

Figure 23 is a schematic structural view of the card body of embodiment 3.

Fig. 24 is a schematic structural view of a cover in embodiment 3.

Fig. 25 is a schematic structural view of a fixing structure of embodiment 3.

FIG. 26 is a schematic view showing the fixing structure of example 3 in an expanded state.

Fig. 27 is a schematic view 1 of the fixing structure of embodiment 3 in a sandwiched state.

Fig. 28 is a schematic view 2 showing the fixing structure of embodiment 3 in a sandwiched state.

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", "side", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

Example 1.

As shown in fig. 1-4, the present embodiment includes a card body 1, a front display layer 2, and a driving layer 3. The inside installation cavity 11 that is equipped with the accent in tablet 1 one end of body, be provided with respectively in the installation cavity 11 with preceding display layer 2 and the spout 12 of drive layer 3 matching, preceding display layer 2 and the setting of 3 accessible spouts 12 of drive layer are in installation cavity 11, when current display layer 2 and drive layer 3 set up in installation cavity 11, preceding display layer 2 front side meets with tablet 1 front side, and preceding display layer 2 rear side meets with 3 front sides of drive layer. In the embodiment, the card body 1 is of a rectangular structure, and in actual use, the structure of the card body 1 can be changed as required to improve the aesthetic property or prolong the service life of the card body.

As shown in fig. 5-7, a first transparent plate 13 is disposed on the front side of the tablet body 1, a second transparent plate 21 is disposed on the front side of the front display layer 2, and an accommodating cavity 22 is formed in the front display layer 2, specifically, when the front display layer 2 is disposed in the mounting cavity 11, the front side of the tablet body 1 can directly see the structure in the accommodating cavity 22 through the first transparent plate 13 and the second transparent plate 21. Iron powder (not shown in the drawings, but actually existing) is preset in the accommodating cavity 22, and a plurality of grooves 23 are formed in the side of the accommodating cavity 22 away from the second transparent plate 21, and the grooves 23 are uniformly distributed on one side of the entire accommodating cavity 22. The lower part of the groove 23 is of a cambered surface structure, and when the front display layer 2 is in a vertical state, iron powder enters the groove 23 and then slides to the bottom of the accommodating cavity 22 along the groove 23 without the action of external force.

As shown in fig. 8, a first electromagnetic region 31 is disposed on the front side of the driving layer 3, and a plurality of electromagnets 32 are disposed in the first electromagnetic region 31, wherein each electromagnet 32 corresponds to one of the grooves 23. The driving layer 3 is provided with a main control and input port 33 connected with the first electromagnetic area 31 at the side, a required pattern or a character signal can be led into the main control through the input port 33, a power supply is input into the first electromagnet 32 through the input port 33, so that the electromagnet 32 can selectively work under a preset program in the main control, specifically, when the front display layer 2 and the driving layer 3 are installed in the installation cavity 11, the rear side of the front display layer 2 is connected with the first electromagnetic area 31, each electromagnet 32 in the first electromagnetic area 31 corresponds to a groove 23 in front of the electromagnet, and after the electromagnet 32 is electrified, the electromagnet is electrified to generate magnetism, so that iron powder is sucked into the corresponding groove 23. The preset program is set to energize the corresponding electromagnet 32 according to the inputted graphic signal or text signal, and the iron powder is sucked into the corresponding groove 23 to form a graphic or text which can be observed from the front side. In addition, when the number of the grooves 23 is enough and the size of the grooves 23 is small enough, the formed patterns or characters have higher precision; when the magnetic force generated by the electromagnet 32 after being electrified reaches a certain value, namely, the magnetic force can only affect the corresponding groove 23, the formed pattern or character has higher precision. The iron powder is coated with the colored paint, the coated colored paint can improve the ornamental value of figures or characters on one hand, and the colored paint can prevent the iron powder from contacting with air and reduce the possibility of rusting on the other hand.

As shown in fig. 9, a buckle 14 fixed on the card body 1 is arranged outside the cavity of the installation cavity 11, and the cavity of the installation cavity 11 is clamped with a cover body 4 provided with a buckle opening 41 through the buckle 14 to form a cover for the cavity of the installation cavity 11. The inner side of the cover body 4 is provided with a switching port (not shown in the drawing, but actually existing, the prior art can realize) matched with the input port 33, the outer side of the cover body 4 is provided with a jack 43 connected with the switching port, the jack 43 is used for being connected with an external power supply, specifically, when the cover body 4 covers one end of the card body 1, the switching port is connected with the input port 33, and the external power supply is led into the input port 33 through the jack 43 and the switching port in sequence to provide working power supply for the first electromagnetic area 31.

In this embodiment, a fixing structure 15 is disposed on the rear side of the card body 1, and the fixing structure 15 is used for fixing the card body 1 at a designated position.

One use method of the present embodiment is: after the front display layer 2, the driving layer 3 and the cover body 4 are arranged in the card body 1, the front side surface of the card body 1 is horizontally placed upwards, iron powder is uniformly distributed in each groove 23 as much as possible, a pattern or character signal to be displayed is guided into a main control through the input port 33, the iron powder in the designated groove 23 is adsorbed after the power is on, redundant iron powder slides to the bottom of the accommodating cavity 22 along the groove 23 after the card body 1 is vertically erected, the groove 23 adsorbed with the iron powder forms a corresponding pattern or character at the moment, the content can be displayed all the time after the power is continuously maintained on, when the display content needs to be changed, all the iron powder can fall down after the power is stopped on, and the secondary display can be completed by repeating the steps.

But this embodiment the signboard of circulated use, each structural installation is simple, dismantles the change convenience, but the different sign content of circulated use display, the mode that electro-magnet 32 circular telegram was shown is more power-saving than traditional LED display.

Example 2.

As shown in fig. 10-18, the present embodiment includes a card body 1, a front display layer 2, and a driving layer 3, wherein the card body 1 and the driving layer 3 are similar to those of embodiment 1. Preceding display layer 2 front side is provided with the second and passes through board 21, has seted up in preceding display layer 2 and has held the chamber 22, and is concrete, when preceding display layer 2 sets up in installation cavity 11, can directly see through first board 13 and the second structure that holds in the chamber 22 by tablet 1 front side. Iron powder is preset in holding chamber 22, and holding chamber 22 is equipped with a plurality of recesses 23 far away from second board 21 one side, and these recesses 23 evenly distributed holds chamber 22 one side at whole. The lower part of the groove 23 is of a cambered surface structure, and when the front display layer 2 is in a vertical state, iron powder enters the groove 23 and then slides to the bottom of the accommodating cavity 22 along the groove 23 without the action of external force. In this embodiment, the grooves 23 are arranged in a rectangular shape with equal distance. A plurality of movable grooves 24 are arranged in one side of the front display layer 2 provided with the grooves 23, each movable groove 24 corresponds to one row of the grooves 23, and the movable groove 24 is positioned below the corresponding row of the grooves 23. A movable rod 25 which can move up and down along the movable groove 24 is arranged in the movable groove 24, and a transparent stop 26 corresponding to the groove 23 is fixed on the movable rod 25. The bottom of the groove 23 is provided with a through hole 27 connected with the corresponding movable groove 24, and the transparent stopper 26 is positioned in the through hole 27 and can move up and down along the through hole 27. The connecting rod 28 fixedly connected with one end of the movable rod 25 is arranged at one end of the front display layer 2, the retaining ring 29 is arranged at the top end of the connecting rod 28, specifically, all the movable rods 25 can move upwards or downwards simultaneously through the arranged connecting rod 28, so that the transparent stop block 26 is driven to move upwards and downwards in the through hole 27, when the movable rod 25 moves to the highest position, the transparent stop block 26 moves to the highest position, and at the moment, the transparent stop block 26 stops at the notch of the groove 23.

As shown in fig. 19-20, a fastener 14 is disposed at a cavity opening of the installation cavity 11, and the cavity opening of the installation cavity 11 is fastened with a cover body 4 provided with a fastening opening 41 through the fastener 14 to form a covering of the cavity opening of the installation cavity 11. The inner side of the cover body 4 is provided with a switching port matched with the input port 33, the outer side of the cover body 4 is provided with a jack 43 connected with the switching port, the jack 43 is used for being connected with an external power supply, specifically, when the cover body 4 covers one end of the card body 1, the switching port is connected with the input port 33, and the external power supply is led into the input port 33 through the jack 43 and the switching port in sequence to provide a working power supply for the first electromagnetic area 31. The inner side of the cover body 4 is provided with a fixture block 44 which is matched with the retaining ring 29 and can move up and down, the outer side of the cover body 4 is provided with a switch 45 which is in transmission connection with the fixture block 44, when the cover body 4 is covered on the card body 1, the fixture block 44 is inserted into the retaining ring 29 to form clamping connection, and the switch 45 which is arranged by shifting drives the fixture block 44 to move up and down through transmission so as to drive the connecting rod 28 which is arranged below the retaining ring 29 to move up and down. Specifically, when the switch 45 is pulled up, the connecting rod 28 moves upward; when the switch 45 is pushed down, the link 28 moves downward.

One use method of the present embodiment is: after the front display layer 2, the driving layer 3 and the cover body 4 are installed in the card body 1, the front side face of the card body 1 is horizontally placed upwards, iron powder is uniformly distributed in each groove 23 as much as possible, a pattern or character signal to be displayed is guided into a main control through the input port 33, the iron powder in the designated groove 23 is adsorbed after the power is on, the redundant iron powder slides to the bottom of the accommodating cavity 22 along the groove 23 after the card body 1 is vertically erected, the groove 23 adsorbed with the iron powder forms a corresponding pattern or character, the switch 45 is turned upwards to enable all the transparent blocks 26 to move upwards to block the notch of each groove 23, and the display content can be kept after the power is off. When the display content needs to be changed, the downward-pulling switch 45 makes all the transparent stoppers 26 move downward, and after the iron powder completely falls down, the above steps are repeated to complete secondary display.

But the signboard of circulated use compare embodiment 1, need not last circular telegram can carry out the logo and show, can keep the display content through physical structure, change display content at every turn and only need circular telegram once, make the application scope of this signboard wider.

Example 3.

As shown in fig. 21-23, the present embodiment includes a card body 1, a front display layer 2, a driving layer 3, and a rear display layer 20. The inside of the plaque body 1 is provided with an installation cavity 11 with a cavity opening positioned at one end of the plaque body 1, the installation cavity 11 is internally provided with a sliding chute 12 matched with the front display layer 2, the driving layer 3 and the rear display layer 20, the front display layer 2, the driving layer 3 and the rear display layer 20 can be arranged in the installation cavity 11 through the sliding chute 12, the front display layer 2, the driving layer 3 and the rear display layer 20 are arranged in the installation cavity 11, the front side of the front display layer 2 is connected with the front side of the plaque body 1, the rear side of the front display layer 2 is connected with the front side of the driving layer 3, and the rear side of the driving layer 3 is connected with the rear display layer 20. In the embodiment, the card body 1 is of a rectangular structure, and in actual use, the structure of the card body 1 can be changed as required to improve the aesthetic property or prolong the service life of the card body.

The tablet body 1 front side is provided with first board 13 that passes through, and preceding display layer 2 front side is provided with second board 21 that passes through, has seted up in preceding display layer 2 and has held the chamber 22, and is concrete, when current display layer 2 sets up in installation cavity 11, can directly see through first board 13 and second board 21 and observe the structure that holds in the chamber 22 that passes through by the tablet body 1 front side. Iron powder is preset in the accommodating cavity 22, a plurality of grooves 23 are formed in one side, far away from the second transparent plate 21, of the accommodating cavity 22, and the grooves 23 are evenly distributed on one side of the whole accommodating cavity 22. The lower portion of the groove 23 is of a cambered surface structure, and when the front display layer 2 is in a vertical state, iron powder can slide to the bottom of the accommodating cavity 22 along the groove 23 without the action of external force after entering the groove 23. In this embodiment, the grooves 23 are arranged in a rectangular shape with equal distance. A plurality of movable grooves 24 are arranged in one side of the front display layer 2 provided with the grooves 23, each movable groove 24 corresponds to one row of the grooves 23, and the movable groove 24 is positioned below the corresponding row of the grooves 23. A movable rod 25 which can move up and down along the movable groove 24 is arranged in the movable groove 24, and a transparent stop 26 corresponding to the groove 23 is fixed on the movable rod 25. The bottom of the groove 23 is provided with a through hole 27 connected with the corresponding movable groove 24, and the transparent stopper 26 is positioned in the through hole 27 and can move up and down along the through hole 27. The connecting rod 28 fixedly connected with one end of the movable rod 25 is arranged at one end of the front display layer 2, the top end of the connecting rod 28 is provided with a retaining ring 29, specifically, all the movable rods 25 can move upwards or downwards simultaneously through the arranged connecting rod 28, so that the transparent stop block 26 is driven to move upwards and downwards in the through hole 27, when the movable rod 25 moves to the highest position, the transparent stop block 26 moves to the highest position, and at the moment, the transparent stop block 26 stops at the notch of the groove 23.

The structure of the rear display layer 20 is symmetrical to that of the front display layer 2, the third transparent plate 16 is arranged on the rear side of the signboard body 1, and when the rear display layer 20 is arranged in the installation cavity 11, the structure in the accommodating cavity 22 in the rear display layer 20 can be observed directly from the rear side of the signboard body 1 through the third transparent plate 16 and the second transparent plate 21 on one side of the rear display layer 20.

The front side of the driving layer 3 is provided with a first electromagnetic region 31, and the rear side of the driving layer 3 is provided with a second electromagnetic region which is structurally symmetrical with the first electromagnetic region 31. A plurality of electromagnets 32 are arranged in the first electromagnetic area 31 and the second electromagnetic area, and each electromagnet 32 corresponds to one groove 23 on the side. The driving layer 3 is provided with a main control and input port 33 at its side, which is connected to the first electromagnetic region 31 and the second electromagnetic region, respectively, and a desired pattern or a desired character signal can be introduced into the main control through the input port 33, and a power supply can be input to the first electromagnetic region 31 and the second electromagnetic region through the input port 33, so that the electromagnets 32 can selectively work under a preset program in the main control, specifically, when the front display layer 2, the driving layer 3, and the rear display layer 20 are installed in the installation cavity 11, the rear side of the front display layer 2 is connected to the first electromagnetic region 31, one side of the rear display layer 20 is connected to the second electromagnetic region, each electromagnet 32 in the first electromagnetic region 31 corresponds to a groove 23 in front thereof, and each two electromagnets 32 in the second electromagnetic region correspond to a groove 23 in front thereof, and after being powered on, the electromagnets 32 are powered to generate magnetism, so as to suck iron powder into the corresponding grooves 23. The preset program is set to electrify the corresponding electromagnet 32 according to the input graphic signal or character signal, and the iron powder is absorbed into the corresponding groove 23 to form a graphic or character which can be observed from the outside. In addition, when the number of the grooves 23 is enough and the size of the grooves 23 is small enough, the formed pattern or character has higher precision; when the magnetic force generated by the electromagnet 32 after being electrified reaches a certain value, namely, the magnetic force can only affect the corresponding groove 23, the formed pattern or character has higher precision. The iron powder is coated with the colored paint, the coated colored paint can improve the ornamental value of figures or characters on one hand, and the colored paint can prevent the iron powder from contacting with air and reduce the possibility of rusting on the other hand.

As shown in fig. 24, a fastener 14 is disposed at an opening of the installation cavity 11, and the opening of the installation cavity 11 is fastened to a cover 4 having a fastening opening 41 through the fastener 14 to form a covering for the opening of the installation cavity 11. The inner side of the cover body 4 is provided with a switching port matched with the input port 33, the outer side of the cover body 4 is provided with a jack 43 connected with the switching port, the jack 43 is used for being connected with an external power supply, specifically, when the cover body 4 covers one end of the card body 1, the switching port is connected with the input port 33, and the external power supply sequentially passes through the jack 43 and the switching port and is led into the input port 33 to provide working power supply for the first electromagnetic area 31 and the second electromagnetic area. The inner side of the cover body 4 is provided with a fixture block 44 which is matched with the retaining ring 29 and can move up and down, the outer side of the cover body 4 is provided with a switch 45 which is in transmission connection with the fixture block 44, when the cover body 4 is covered on the card body 1, the fixture block 44 is inserted into the retaining ring 29 to form clamping connection, and the switch 45 which is arranged by being stirred enables the fixture block 44 to move up and down through transmission so as to drive the connecting rod 28 under the retaining ring 29 to move up and down. Specifically, when the switch 45 is pulled up, the connecting rod 28 moves upward; when the switch 45 is pushed down, the link 28 moves downward. The number of the switching ports can be one, and the switching ports are simultaneously connected with the input ports 33 on the front display layer 2 and the rear display layer 20, or two switching ports are respectively connected with the two input ports 33; the number of the clamping blocks 44 is two, and the two clamping blocks are respectively connected with the two rings; the switch 45 may be one, and is in transmission connection with the two latch blocks 44, or two, and is in transmission connection with the two latch blocks 44 respectively.

As shown in fig. 25-28, the top of the card body 1 is also provided with a securing structure 15. The fixing structure 15 includes a mounting shaft 51, a fixing bracket 52, a spring 53 sleeved on the mounting shaft 51, and large jaws 54 and small jaws 55. The fixed frame 52 is symmetrically sleeved at two ends of the mounting shaft 51, and the lower part of the fixed frame 52 is fixed with the top of the card body 1 through screws. The spring 53 is positioned between the two fixing frames 52, the large jaw 54 and the small jaw 55 are hinged on the mounting shaft 51 and connected with the spring 53, and the large jaw 54 and the small jaw 55 keep the trend of closing (clamping) towards the middle under the action of the spring 53. The big claw 54 is provided with a big through groove 56, and when the big claw 54 and the small claw 55 are clamped under the effect of no external force, the big through groove 56 is arranged to allow the body of the small claw 55 to pass through. The bottom of the small jaw 55 is provided with a hanging rod 57, the hanging rod 57 is rotatably connected with a locking hook 58, one end of the locking hook 58 is provided with a hook 581 which is bent to a certain degree, the bottom of the large jaw 54 is provided with a hook 571 which is matched with the hanging rod 57, and in a conventional state, the locking hook 58 can enable the hook 581 to hook the hook 571 at the bottom of the large jaw 54 through rotation, so that the jaws of the large jaw 54 and the small jaw 55 are kept in a relatively open state. The mounting shaft 51 is provided with a supporting rod 59 vertically penetrating through the mounting shaft 51, the supporting rod 59 can move in the vertical direction relative to the mounting shaft 51, the supporting rod 59 falls under the action of gravity until the bottom of the supporting rod 59 is connected with the rod body of the hanging rod 57 under the normal state, the top end of the supporting rod 59 is fixed with the driving rod 50 positioned between the large jaw 54 and the small jaw 55, in particular, when the signboard 1 such as a wood board needs to be fixed, one side of the fixing clamp fixed on the signboard 1 moves towards the lower edge of the wood board until the side enters between the large jaw 54 and the small jaw 55, the driving rod 50 is connected with the lower edge of the wood board to drive the supporting rod 59 to move downwards so that the locking hook 58 rotates along the hanging rod 57 until the hook head 581 is separated from the hook rod 571, and the large jaw 54 and the small jaw 55 clamp the wood board under the action of the spring 53, namely, the fixing is completed. The transmission rod 50 is an arc structure with two ends tilted upwards, and the transmission rod 50 with the structure has larger contact surface and is convenient to be connected with a fixed place so as to improve the fixing efficiency. In this embodiment, the small jaw 55 is further provided with a small through slot 501 for the transmission rod 50 to pass through, so as to prevent the transmission rod 50 from colliding when moving in the vertical direction.

Compared with the signboard in embodiment 2, the signboard capable of being recycled in this embodiment can realize simultaneous display of the identification contents on both sides, and further expand the application range.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A recyclable signboard is characterized by comprising

The card comprises a card body, wherein an installation cavity with a cavity opening positioned at one end of the card body is arranged in the card body, a sliding chute is arranged in the installation cavity, a fastener is arranged outside the cavity opening of the installation cavity, and a first transparent plate is arranged on the front side of the card body;

the front display layer is movably connected in the mounting cavity through a sliding chute, an accommodating cavity is formed in the front display layer, a second transparent plate is arranged on the front side of the front display layer, and iron powder is arranged in the accommodating cavity; a plurality of grooves are distributed on one side of the accommodating cavity, and the lower parts of the grooves are of cambered surface structures;

the driving layer is movably connected in the mounting cavity through a sliding groove, a first electromagnetic area is arranged on the front side of the driving layer, and a plurality of electromagnets corresponding to the grooves are arranged in the first electromagnetic area; a main control and input port connected with the first electromagnetic region is arranged beside the driving layer;

the cover body is provided with a buckling opening, the cover body is fixed on one side of the plate body through the buckling of the buckling opening and the buckle and covers the cavity opening of the installation cavity, the inner side of the cover body is provided with an adapter opening matched with the input port, and the outer side of the cover body is provided with a jack connected with the adapter opening;

when the front display layer and the driving layer are installed in the installation cavity, the inner side of the first transparent plate is connected with the outer side of the second transparent plate, and the rear side of the front display layer is connected with the first electromagnetic area; when the cover body is fixed on one side of the card body, the switching port is connected with the input port;

the grooves are arranged at equal intervals, a plurality of movable grooves are arranged in one side of the front display layer, which is provided with the grooves, one movable groove corresponds to one row of grooves and is positioned below the corresponding groove, movable rods capable of moving up and down along the movable grooves are arranged in the movable grooves, and transparent stop blocks corresponding to the grooves are fixed on the movable rods; the bottom of the groove is provided with a through hole connected with the corresponding movable groove, and the transparent stop block is positioned in the through hole and can move up and down along the through hole; one end of the front display layer is provided with a connecting rod fixedly connected with one end of the movable rod, and the top end of the connecting rod is provided with a retaining ring;

the inner side of the cover body is provided with a clamping block which is matched with the retaining ring and can move up and down, and the outer side of the cover body is provided with a switch which is in transmission connection with the clamping block.

2. The recyclable signboard of claim 1, wherein: the rear side of the card body is provided with a fixing structure.

3. The recyclable signboard of claim 1, wherein: a rear display layer is further arranged in the mounting cavity, the structure of the rear display layer is symmetrical to that of the front display layer, a third transparent plate is arranged on the rear side of the board body, and a second electromagnetic area which is symmetrical to the first electromagnetic area in structure is arranged on the rear side of the driving layer;

when the front display layer, the driving layer and the rear display layer are installed in the installation cavity, the rear display layer is located on the other side of the driving layer, the second electromagnetic area is connected with one side of the rear display layer, and the other side of the rear display layer is connected with the third transparent plate.

4. The recyclable signboard of claim 3, wherein: the top of the card body is provided with a fixed structure.

5. The recyclable signboard of claim 4, wherein: the fixing structure comprises an installation shaft, fixing frames symmetrically sleeved on the installation shaft, springs sleeved on the installation shaft and positioned between the fixing frames, and a large clamping jaw and a small clamping jaw which are hinged on the installation shaft and connected with the springs, wherein the bottom of the fixing frame is fixed with the top of the card body, the large clamping jaw and the small clamping jaw keep a clamping trend under the action of the springs, and a large through groove for the small clamping jaw to pass through is formed in the large clamping jaw; the bottom of the small jaw is provided with a hanging rod, the hanging rod is rotatably connected with a lock hook, one end of the lock hook is provided with a hook head, the bottom of the large jaw is provided with a hook rod matched with the hanging rod, and the hook head hooks the hook rod to keep the large jaw and the small jaw open; the mounting bracket still includes the bracing piece that runs through the installation axle perpendicularly, and the bracing piece bottom meets with the peg pole body, and the bracing piece top is fixed with the transfer line that is located between big jack catch and the little jack catch.

6. A recyclable signboard according to any one of claims 1 to 5, wherein: the iron powder is coated with colored paint.