阅读说明：本技术 户外用宣传展示装置 (Outdoor propaganda display device ) 是由 谷加恩 于 2021-02-03 设计创作，主要内容包括：本发明涉及置户外用宣传展示装置,包括支撑机构,支撑机构包括支撑箱、箱盖、含引导槽的引导基座；引导槽内插设有展示机构,展示机构包括显示装置、安装装置；安装装置上置有升降机构,升降机构包括固定装置、第一升降装置、第二升降装置、第三升降装置；固定装置包括固定基座、一齿条、第一滑道、下穿线孔、伺服电机、丝杠；第一升降装置包括主动基座、第一齿轮、第二齿条、第一滑块、第二滑块、底板、螺孔；第二升降装置包括连接基座、第三齿条、第二齿轮、第二滑道、第三滑块；第三升降装置包括从动基座、第四齿条、第三滑道、顶板。本发明的户外用宣传展示装置,可移动；多段式升降结构。(The invention relates to an outdoor propaganda and display device, which comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting box, a box cover and a guide base with a guide groove; a display mechanism is inserted in the guide groove and comprises a display device and a mounting device; the mounting device is provided with a lifting mechanism, and the lifting mechanism comprises a fixing device, a first lifting device, a second lifting device and a third lifting device; the fixing device comprises a fixing base, a rack, a first slide way, a lower threading hole, a servo motor and a lead screw; the first lifting device comprises a driving base, a first gear, a second rack, a first sliding block, a second sliding block, a bottom plate and a screw hole; the second lifting device comprises a connecting base, a third rack, a second gear, a second slide way and a third slide block; the third lifting device comprises a driven base, a fourth rack, a third slideway and a top plate. The outdoor propaganda and display device is movable; the multi-section lifting structure.)

1. Outdoor propaganda display device, its characterized in that:

comprises a supporting mechanism (1) arranged on the ground, a supporting box (10) used for placing a control component is fixedly arranged in the supporting mechanism (1), a box cover (11) is arranged at the upper end of the supporting box (10), a guide base (12) is arranged at the upper end of the box cover (11), a plurality of guide grooves distributed in a rectangular array are arranged on the guide base (12) in a penetrating way,

a display mechanism (2) is movably inserted in the guide groove, the display mechanism (2) comprises a display device (20) for propaganda and display and a mounting device (21) for mounting and fixing the display device (20),

be provided with elevating system (3) on installation device (21), elevating system (3) are including fixed fixing device (31) that sets up in case lid (11) upper end, first elevating gear (32), second elevating gear (33), third elevating gear (34) are inserted in the activity in proper order in fixing device (31):

the fixing device (31) comprises an n-shaped fixing base (310) with an upward opening, a first rack (311) and a first slide way (312) are oppositely arranged in a vertical section of the fixing base (310), a lower threading hole (314) which penetrates through and a lower lead clamp (314) which protrudes upwards are arranged on a horizontal section of the fixing base (310), a servo motor (315) which is electrically connected with a control part is fixedly arranged at the lower end of the horizontal section of the fixing base (310), a screw rod (316) which penetrates through the fixing base (310) is coaxially arranged on a rotating shaft of the servo motor (315),

the first lifting device (32) comprises a rectangular tubular driving base (320), a group of opposite side walls of the driving base (320) are provided with a first gear (321) and a second rack (322), the first gear (321) is meshed with the first rack (311), the second rack (322) is arranged on the inner wall of the driving base (320), and the outer wall of the driving base (320) is provided with a first sliding block (323) in sliding connection with the first sliding way (312); a second sliding block (324) is arranged on the other group of inner side walls opposite to the active base (320); the lower end of one of two groups of opposite side walls of the driving base (320) is provided with a bottom plate (325), the bottom plate (325) is provided with a screw hole (326) which is in threaded connection with the screw rod (316) in a penetrating way,

the second lifting device (33) comprises a rectangular cylinder-shaped connecting base (330), a third rack (331) and a second gear (332) are arranged on one group of opposite side walls of the connecting base (330), the third rack (331) is arranged on the outer wall of the connecting base (330) and meshed with the first gear (321), the second gear (332) is meshed with the second rack (322), a third sliding block (334) and a second sliding way (333) are respectively arranged inside and outside the other group of opposite side walls of the connecting base (330), and the second sliding way (333) is connected with the second sliding block (324) in a sliding manner,

the third lifting device (34) comprises a rectangular cylinder-shaped driven base (340), a group of outer side walls opposite to the driven base (340) are provided with fourth racks (341) meshed with the second gear (332), the other group of outer side walls opposite to the driven base (340) are provided with third slide ways (342) connected with the third sliding blocks (334) in a sliding mode, and the upper end of one of the two groups of opposite side walls of the driven base (340) is provided with a top plate (343) used for fixing the mounting device (21).

2. An outdoor promotional display according to claim 1, characterized in that:

the support box is characterized in that a plurality of universal wheels (101) are arranged at the lower end of the support box (10), a cross arm (102) which is flush with the box opening of the support box is arranged in the support box (10), a plurality of cushion pads (103) which are abutted against the lower end of the box cover (11) are fixedly arranged at the upper end of the support box (10), a hinged hinge (104) fixedly connected with the box cover (11) is fixedly arranged at the upper end of one of the side walls of the support box (10), and a hydraulic tappet (105) fixedly connected with the box cover (11) is arranged on the inner side wall of the support box (10).

3. An outdoor promotional display according to claim 2, characterized in that:

the lower extreme of case lid (11) is provided with shrouding (111), be provided with a plurality of lead wire perforation on shrouding (111), will demolish behind shrouding (111) and be used for maintaining, maintaining to show mechanism (2), elevating system (3) in guide base (12).

4. An outdoor promotional display according to claim 3 characterized in that:

the display device (20) comprises a horizontally arranged square display top plate (201) and a display side plate (202) vertically and downwardly arranged at the four edges of the display top plate (201), wherein a processing unit (203) and a plurality of buckles (205) are arranged at the back ends of the display sides of the display top plate (201) and the display side plate (202), the processing unit (203) is used for controlling the display content of the display top plate (201) and the display side plate (202), and a flat cable (204) is electrically connected to the processing unit (203).

5. An outdoor promotional display according to claim 4 characterized in that:

installation device (21) are including frame-type mounting bracket (210), the upper end of mounting bracket (210) is provided with roof-rack (211), the central authorities of roof-rack (211) are provided with through groove (212), be provided with a plurality of perforation (213) all around through groove (212), roof-rack (211) upper end upwards opens and is provided with and is linked together and passes through to threading groove (214) on mounting bracket (210) upper portion with through groove (212), threading groove (214) are used for holding and establish winding displacement (204), still are provided with a plurality ofly on mounting bracket (210) and buckle (205) assorted draw-in groove (215).

6. An outdoor promotional display according to claim 5 wherein:

the cable laying device is characterized in that a plurality of fixing screw holes (344) which are coaxial with the through holes (213) are formed in the top plate (343), a placing groove (345) communicated with the through groove (212) is formed in the center of the top plate (343) in an upward opening mode, a repeater electrically connected with a flat cable (204) is arranged in the placing groove (345), a lead groove (346) communicated with the placing groove (345) is formed in the upper end of the top plate (343) in an upward opening mode, and an upper lead clamp (347) protruding downwards is arranged at the tail end of the lead groove (346).

7. An outdoor promotional display according to claim 6 wherein:

the upper lead card (347) is arranged right above the lower lead card (314);

the lead of the repeater passes through the lead slot (346), the upper lead clamp (347), the lower lead clamp (314) and the lead perforation on the sealing plate (111) in sequence by the placing slot (345) until the lead is electrically connected with a control component in the box cover (11);

the lead of the repeater between the upper lead clamp (347) and the lower lead clamp (314) adopts an easily telescopic spiral cable.

8. An outdoor promotional display according to claim 7 wherein:

the control component comprises a display control component and a lifting control component,

the display control section includes:

computer and its peripheral equipment for operating display software to make parameter setting;

a special display card for outputting digital RGB signals, or a multimedia card for converting input analog Video signals into digital RGB signals;

a controller for buffering, gray-scale converting, reorganizing and generating various control signals of the input RGB digital video signals, the lead wires of the repeater being electrically connected to the output terminals of the controller,

the elevation control part includes:

the encoder is used for converting the control signal into a pulse signal, and the servo motor (315) is electrically connected to the encoder;

a programmable logic controller for sending control signals;

computer and its peripheral equipment are used for operating software of programmable logic controller and making parameter setting.

The control part also comprises a power supply which is electrically connected with the commercial power and is used for supplying power to the display control part and the lifting control part which are arranged on the control part.

9. An outdoor promotional display according to claim 8 wherein:

the first rack (311) is arranged in the center of the upper half part of the fixed base (310),

the third rack (331) is arranged at the center of the lower half part of the connecting base (330),

the first gear (321) is arranged in the center of the driving base (320),

the first rack (311), the third rack (331) and the first gear (321) are meshed in a matching way;

the second racks (322) are arranged on two sides of the upper half part of the driving base (320),

the fourth racks (341) are arranged on two sides of the lower half part of the driven base (340),

the second gear (332) is arranged on the connecting base (330) at two sides of the third rack (331),

the second rack (322), the fourth rack (341) and the second gear (332) are meshed in a matching way;

meanwhile, the first rack (311), the third rack (331), the first gear (321), the second rack (322), the fourth rack (341) and the second gear (332) do not interfere with each other.

10. The outdoor propaganda showing method according to claim 9, characterized in that:

rising:

the programmable logic controller controls the servo motor (315) to rotate in the positive direction,

the first lifting device (32) moves upwards, at the moment, the first gear (321) is meshed upwards along the first rack (311) to rotate, the third rack (331) meshed with the first gear (321) drives the second lifting device (33) to move upwards,

the second lifting device (33) moves upwards, at the moment, the second gear (332) is meshed upwards along the second rack (322) to rotate, the fourth rack (341) meshed with the second gear (332) drives the third lifting device (34) to move upwards,

in the process that the second lifting device (33) moves upwards, the display mechanism (2) fixedly connected with the second lifting device is driven to move upwards;

and (3) descending:

the programmable logic controller controls the servo motor (315) to rotate reversely,

the first lifting device (32) moves downwards, at the moment, the first gear (321) rotates downwards along the first rack (311) in a meshed mode, the third rack (331) meshed with the first gear (321) drives the second lifting device (33) to move downwards,

the second lifting device (33) moves downwards, at the moment, the second gear (332) is meshed and rotated downwards along the second rack (322), the fourth rack (341) meshed with the second gear (332) drives the third lifting device (34) to move downwards,

in the process that the second lifting device (33) moves downwards, the display mechanism (2) fixedly connected with the second lifting device is driven to move downwards;

displaying:

the computer converts the video signal into digital RGB signal via the display card or multimedia card, and at the moment, the digital RGB signal is temporarily stored in the controller for buffering and recombination,

the buffered and recombined digital RGB signals are sent to the repeater, and are sent to the corresponding display top board (201) and/or display side board (202) by the repeater.

Technical Field

The invention relates to the field of propaganda and display, in particular to an outdoor propaganda and display device.

Background

Publicity, a propaganda terminology, is an information expression method dedicated to serve a specific topic, and its meaning lies in the process. In this context, the original meaning of publicity is to disseminate the argument or insight of philosophy, but is now most commonly used in political environments, particularly with reference to operations supported by the government or political community. The same approach is used for businesses or products, and is often called customs or advertising. Various symbols are used to propagate certain concepts to influence the social behavior of people's ideas and actions. Publicity and its activities are far growing in the history of human civilization development. In China, "three kingdoms, Shuzhi, Pen\32661handed" written by Xijin Stecke Chenshou, Mr. is also odd, Ding publicizes military affairs, points to all the branches and acts as meaning "sentence, which shows that the two characters of" Xuan "and" handed "are used together in the last year in east Han Dynasty of China.

A publicity display is a system that effectively transmits certain information to a person receiving the information and allows the person receiving the information to receive the information. At present, the conventional propaganda display form is advertisement, namely advertisement. With the development of the technology level, the mode of publicity and display is changed from the earliest picture to the current video. At present, the video is the most effective propaganda and display mode, and has the advantages that: the time is shortened and the amount of information is increased. Meanwhile, the controllable sand table display device is operated and produced. However, the device has the following disadvantages:

1. the device is mainly used in large-scale indoor evening and can not move;

2. the lifting structure is single, and the lifting speed is low.

Disclosure of Invention

In order to solve the technical problems in the background technology, the invention provides an outdoor propaganda and display device which is movable; the multi-section lifting structure.

The technical scheme adopted by the invention is as follows:

outdoor propaganda display device, including setting up in subaerial supporting mechanism, the supporting mechanism internal fixation is provided with the supporting box that is used for placing control unit, the supporting box upper end is provided with the case lid, the case lid upper end is provided with the guide base, it is provided with the guiding groove that a plurality of rectangle array distribute to run through on the guide base.

The display mechanism is movably inserted in the guide groove and comprises a display device for propaganda and display and a mounting device for mounting and fixing the display device.

The mounting device is provided with a lifting mechanism, the lifting mechanism comprises a fixing device fixedly arranged at the upper end of the box cover, and a first lifting device, a second lifting device and a third lifting device are movably inserted in the fixing device in sequence:

the fixing device comprises an n-shaped fixing base with an upward opening, a first rack and a first slideway are oppositely arranged in a vertical section of the fixing base, a penetrating lower threading hole and an upward protruding lower lead clamp are arranged on a horizontal section of the fixing base, a servo motor electrically connected with the control part is fixedly arranged at the lower end of the horizontal section of the fixing base, and a lead screw penetrating through the fixing base is coaxially arranged on a rotating shaft of the servo motor;

the first lifting device comprises a rectangular tubular driving base, a first gear and a second rack are arranged on a group of side walls opposite to the driving base, the first gear is meshed with the first rack, the second rack is arranged on the inner wall of the driving base, and a first sliding block connected with a first sliding way in a sliding manner is arranged on the outer wall of the driving base; a second sliding block is arranged on the other group of inner side walls opposite to the driving base; the lower end of one of the two groups of opposite side walls of the driving base is provided with a bottom plate, and a screw hole in threaded connection with the screw rod penetrates through the bottom plate;

the second lifting device comprises a rectangular tubular connecting base, a third rack and a second gear are arranged on one group of side walls opposite to the connecting base, the third rack is arranged on the outer wall of the connecting base and meshed with the first gear, the second gear is meshed with the second rack, a third sliding block and a second sliding way are respectively arranged on the inner side and the outer side of the other group of side walls opposite to the connecting base, and the second sliding way is connected with the second sliding block in a sliding manner;

the third lifting device comprises a rectangular cylindrical driven base, a fourth rack meshed with the second gear is arranged on one group of outer side walls opposite to the driven base, a third slide connected with the third slide in a sliding manner is arranged on the other group of outer side walls opposite to the driven base, and a top plate used for fixing the mounting device is arranged at the upper end of one of the two groups of opposite side walls of the driven base.

Furthermore, the supporting box lower extreme is provided with a plurality of universal wheels, is provided with the cross arm that flushes rather than the case mouth in the supporting box, and the supporting box upper end is fixed with a plurality of blotters with case lid lower extreme looks butt, and the upper end of one of supporting box lateral wall is fixed be provided with case lid fixed connection's articulated hinge, be provided with on the supporting box inside wall with case lid fixed connection's hydraulic tappet.

Furthermore, the lower extreme of case lid is provided with the shrouding, be provided with a plurality of lead wire perforation on the shrouding, will demolish behind the shrouding and be used for maintaining, maintaining to show mechanism, elevating system in the guide base.

Furthermore, the display device comprises a horizontally arranged square display top plate and display side plates vertically and downwards arranged at the four edges of the display top plate, a processing unit and a plurality of buckles are arranged at the back ends of the display sides of the display top plate and the display side plates, the processing unit is used for controlling the display contents of the display top plate and the display side plates, and a flat cable is arranged on the processing unit in an electrical connection mode.

Further, the installation device includes the mounting bracket of frame-type, the upper end of mounting bracket is provided with the roof-rack, the central authorities of roof-rack are provided with the poling groove, be provided with a plurality of perforation around the poling groove, the roof-rack upper end upwards openly be provided with the poling groove be linked together and transition to the threading groove on mounting bracket upper portion, the threading groove is used for holding the winding displacement, still be provided with on the mounting bracket a plurality of and buckle assorted buckle.

Furthermore, a plurality of fixing screw holes which are coaxial with the through holes are formed in the top plate, a placing groove communicated with the through grooves is formed in the center of the top plate in an upward opening mode, a repeater electrically connected with the flat cable is arranged in the placing groove, a lead groove communicated with the placing groove is formed in the upper end of the top plate in an upward opening mode, and an upper lead card protruding downwards is arranged at the tail end of the lead groove.

Furthermore, the upper lead card is arranged right above the lower lead card;

the lead of the repeater passes through the lead slot, the upper lead card, the lower lead card and the lead through hole on the sealing plate in sequence by the placing slot until the lead is electrically connected with the control component in the box cover;

the lead of the repeater between the upper lead card and the lower lead card adopts an easily telescopic spiral cable.

Further, the control part comprises a display control part and a lifting control part,

the display control section includes:

computer and its peripheral equipment for operating display software to make parameter setting;

a special display card for outputting digital RGB signals, or a multimedia card for converting input analog Video signals into digital RGB signals;

a controller for buffering, gray-scale converting, reorganizing and generating various control signals of the input RGB digital video signals, the lead wires of the repeater being electrically connected to the output terminals of the controller,

the elevation control part includes:

the encoder is used for converting the control signal into a pulse signal, and the servo motor is electrically connected to the encoder;

a programmable logic controller for sending control signals;

computer and its peripheral equipment are used for operating software of programmable logic controller and making parameter setting.

The control part also comprises a power supply which is electrically connected with the commercial power and is used for supplying power to the display control part and the lifting control part which are arranged on the control part.

Further, the first rack is arranged in the center of the upper half part of the fixed base,

the third rack is arranged in the center of the lower half part of the connecting base,

the first gear is arranged in the center of the driving base,

the first rack, the third rack and the first gear are meshed in a matching way;

the second rack is arranged on two sides of the upper half part of the active base,

the fourth racks are arranged on two sides of the lower half part of the driven base,

the second gear is arranged on the connecting base at the two sides of the third rack,

the second rack, the fourth rack and the second gear are meshed in a matching way;

meanwhile, the first rack, the third rack, the first gear and the second rack, the fourth rack and the second gear do not interfere with each other.

The outdoor propaganda display method comprises the following steps:

rising:

the programmable logic controller controls the servo motor to rotate in the forward direction, the first lifting device moves upwards, at the moment, the first gear is meshed upwards along the first rack to rotate, the third rack meshed with the first gear drives the second lifting device to move upwards, the second lifting device moves upwards, at the moment, the second gear is meshed upwards along the second rack to rotate, the fourth rack meshed with the second gear drives the third lifting device to move upwards, and in the process that the second lifting device moves upwards, the display mechanism fixedly connected with the second lifting device is driven to move upwards;

and (3) descending:

the programmable logic controller controls the servo motor to rotate reversely, the first lifting device moves downwards, at the moment, the first gear is meshed downwards along the first rack to rotate, the third rack meshed with the first gear drives the second lifting device to move downwards, the second lifting device moves downwards, at the moment, the second gear is meshed downwards along the second rack to rotate, the fourth rack meshed with the second gear drives the third lifting device to move downwards, and the second lifting device drives the display mechanism fixedly connected with the display mechanism to move downwards in the downward movement process;

displaying:

the computer converts the video signal into digital RGB signal through the display card or multimedia card, at this moment, the digital RGB signal is temporarily stored in the controller for buffering and recombination, the buffered and recombined digital RGB signal is sent to the relay, and is sent to the corresponding display top plate and/or display side plate by the relay.

The outdoor propaganda and demonstration device and the demonstration method have the advantages that:

1. the supporting mechanism and each part on the supporting mechanism can be conveniently moved through the mounting frame;

2. the display mechanism is convenient to mount and dismount and is maintained through the matched buckle and clamping groove structures;

3. the vertical space is reduced through a multi-section type lifting mechanism;

4. through each part of the multi-section type lifting mechanism which is mutually meshed, the lifting mechanism can lift simultaneously, and the moving speed is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.

FIG. 1 is a general perspective view of an example of the present invention providing an outdoor promotional display;

FIG. 2 is a perspective view of a cabinet of an outdoor promotional display apparatus according to an embodiment of the present invention;

FIG. 3 is a side schematic view of a side panel of an outdoor promotional display according to an embodiment of the present invention;

FIG. 4 is a perspective view of a drawer of an outdoor promotional display according to an embodiment of the present invention;

FIG. 5 is a schematic side view of a drawer of an outdoor promotional display according to an embodiment of the present invention;

FIG. 6 is a perspective view of an exemplary outdoor promotional display device according to the present invention;

FIG. 7 is a perspective view of an exemplary outdoor promotional display device according to the present invention;

FIG. 8 is a perspective view of an exemplary outdoor promotional display device according to the present invention;

FIG. 9 is a perspective view of an exemplary outdoor promotional display device according to the present invention.

In the figure:

1. the support mechanism is used for supporting the movable support frame,

10. a support box 101, universal wheels 102, cross arms 103, cushion pads 104, hinged hinges 105, hydraulic lifters 11, a box cover 111, a closing plate 12, a guide base,

2. the display mechanism is provided with a display mechanism,

20. a display device 201, a display top plate 202, a display side plate 203, a processing unit 204, a flat cable 205, a buckle,

21. the mounting device comprises a mounting device 210, a mounting frame 211, a top frame 212, a threading groove 213, a perforation 214, a threading groove 215 and a clamping groove,

3. a lifting mechanism is arranged on the base plate,

31. a fixing device 310, a fixing base 311, a first rack 312, a first slideway 313, a lower threading hole 314, a lower threading card 315, a servo motor 316 and a lead screw,

32. a first lifting device 320, a driving base 321, a first gear 322, a second rack 323, a first slide block 324, a second slide block 325, a bottom plate 326 and a screw hole,

33. a second lifting device 330, a connecting base 331, a third rack 332, a second gear 333, a second slideway 334, a third slide block,

34. third elevating gear, 340, driven base, 341, fourth rack, 342, third slide, 343, roof, 344, fixed screw, 345, standing groove, 346, lead wire groove, 347, last lead wire card.

Detailed Description

In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention are within the scope of the invention without making creative efforts.

The outdoor propaganda and display device comprises a support mechanism 1 arranged on the ground, wherein a support box 10 for placing a control part is fixedly arranged in the support mechanism 1, and the control part comprises a display control part and a lifting control part, as shown in figures 1 and 2: the display control part comprises a computer and peripheral equipment thereof, wherein the computer is used for operating display software to set parameters; a special display card for outputting digital RGB signals, or a multimedia card for converting input analog Video signals into digital RGB signals; and a controller for buffering, gray-scale converting, reorganizing and generating various control signals for the input RGB digital video signals, wherein the lead wires of the repeater are electrically connected to the output terminals of the controller. The lifting control part comprises an encoder for converting a control signal into a pulse signal, and the servo motor 315 is electrically connected to the encoder; a programmable logic controller for sending control signals; computer and its peripheral equipment are used for operating software of programmable logic controller and making parameter setting. The control part also comprises a power supply which is electrically connected with the commercial power and is used for supplying power to the display control part and the lifting control part which are arranged on the control part. The lower end of the supporting box 10 is provided with a plurality of universal wheels 101, a cross arm 102 which is flush with the opening of the supporting box 10 is arranged in the supporting box 10, a plurality of cushion pads 103 which are abutted against the lower end of the box cover 11 are fixedly arranged at the upper end of the supporting box 10, a hinged hinge 104 which is fixedly connected with the box cover 11 is fixedly arranged at the upper end of one of the side walls of the supporting box 10, and a hydraulic tappet 105 which is fixedly connected with the box cover 11 is arranged on the inner side wall of the supporting box 10. The upper end of the supporting box 10 is provided with a box cover 11, the lower end of the box cover 11 is provided with a sealing plate 111, the sealing plate 111 is provided with a plurality of lead perforations, and the sealing plate 111 is detached and then used for maintaining and repairing the display mechanism 2 and the lifting mechanism 3 in the guide base 12. The upper end of the box cover 11 is provided with a guide base 12, and a plurality of guide grooves distributed in a rectangular array are arranged on the guide base 12 in a penetrating manner.

A display mechanism 2 is movably inserted in the guide groove, and the display mechanism 2 comprises a display device 20 for propaganda and display and a mounting device 21 for mounting and fixing the display device 20.

As shown in fig. 3, the display device 20 includes a horizontally disposed square top display plate 201, and a display side plate 202 disposed vertically downward at four edges of the top display plate 201, wherein a processing unit 203 and a plurality of fasteners 205 are disposed at back ends of display sides of the top display plate 201 and the display side plate 202, the processing unit 203 is configured to control display contents of the top display plate 201 and the display side plate 202, and a flat cable 204 is electrically connected to the processing unit 203.

As shown in fig. 3, the mounting device 21 includes a frame-type mounting frame 210, an upper frame 211 is disposed at an upper end of the mounting frame 210, a through groove 212 is disposed at a center of the upper frame 211, a plurality of through holes 213 are disposed around the through groove 212, a threading groove 214 communicated with the through groove 212 and transiting to an upper portion of the mounting frame 210 is upwardly opened at an upper end of the upper frame 211, the threading groove 214 is used for accommodating a flat cable 204, and a plurality of buckles 205 matched with the buckles 205 are further disposed on the mounting frame 210.

As shown in fig. 8 and 9, the mounting device 21 is provided with a lifting mechanism 3, the lifting mechanism 3 includes a fixing device 31 fixedly disposed at the upper end of the box cover 11, and a first lifting device 32, a second lifting device 33, and a third lifting device 34 are movably inserted in the fixing device 31 in sequence:

as shown in fig. 4, the fixing device 31 includes an n-shaped fixing base 310 with an upward opening, a first rack 311 and a first slide 312 are oppositely disposed in a vertical section of the fixing base 310, the first rack 311 is disposed in the center of the upper half portion of the fixing base 310, a through lower threading hole 314 and an upward protruding lower lead clamp 314 are disposed on a horizontal section of the fixing base 310, a servo motor 315 electrically connected to the control component is fixedly disposed at the lower end of the horizontal section of the fixing base 310, and a lead screw 316 passing through the fixing base 310 is coaxially disposed on a rotating shaft of the servo motor 315;

as shown in fig. 5, the first lifting device 32 includes a rectangular tubular driving base 320, a first gear 321 and a second rack 322 are disposed on a set of opposite sidewalls of the driving base 320, the first gear 321 is engaged with the first rack 311, the first gear 321 is disposed in the center of the driving base 320, the second rack 322 is disposed on two sides of the upper half of the inner wall of the driving base 320, and a first slider 323 slidably connected to the first slideway 312 is disposed on the outer wall of the driving base 320; a second slider 324 is arranged on the other group of inner side walls opposite to the active base 320; a bottom plate 325 is arranged at the lower end of one of the two groups of opposite side walls of the driving base 320, and a screw hole 326 in threaded connection with the lead screw 316 penetrates through the bottom plate 325;

as shown in fig. 6, the second lifting device 33 includes a rectangular tube-shaped connection base 330, a set of opposite side walls of the connection base 330 is provided with a third rack 331 and a second gear 332, the third rack 331 is disposed in the center of the lower half portion of the outer wall of the connection base 330 and is engaged with the first gear 321, the second gear 332 is disposed on the connection base 330 at two sides of the third rack 331, the second gear 332 is engaged with the second rack 322, the inner portion and the outer portion of the other set of opposite side walls of the connection base 330 are respectively provided with a third slider 334 and a second slide way 333, and the second slide way 333 is slidably connected with the second slider 324;

as shown in fig. 7, the third lifting device 34 includes a rectangular tube-shaped driven base 340, a set of outer sidewalls opposite to the driven base 340 is provided with fourth racks 341 engaged with the second gear 332, the fourth racks 341 are disposed on two sides of a lower half of the driven base 340, another set of outer sidewalls opposite to the driven base 340 is provided with third slide ways 342 slidably connected with the third slider 334, an upper end of one of two sets of opposite sidewalls of the driven base 340 is provided with a top plate 343 for fixing the mounting device 21, the top plate 343 is provided with a plurality of fixing screw holes 344 having a same central axis with the through holes 213, a center of the top plate 343 is opened upward to be provided with a placement groove 345 communicated with the through groove 212, the placement groove 345 is provided with a relay electrically connected with the flat cable 204, an upper end of the top plate 343 is opened upward to be provided with a lead groove 346 communicated with the placement groove 345, a terminal of the lead groove 346 is provided with an upper, the upper lead card 347 is arranged right above the lower lead card 314, and the lead of the repeater is perforated by the lead groove 346, the upper lead card 347, the lower lead card 314 and the lead on the sealing plate 111 in sequence from the placing groove 345 until the lead is electrically connected with the control component in the box cover 11; the lead of the repeater between the upper lead card 347 and the lower lead card 314 is made of a spiral cable which is easy to stretch.

The first rack 311, the third rack 331 and the first gear 321 are engaged in a matching manner; the second rack 322, the fourth rack 341 and the second gear 332 are meshed in a matching way; meanwhile, the first rack 311, the third rack 331 and the first gear 321 do not interfere with the second rack 322, the fourth rack 341 and the second gear 332.

With reference to the specific structure of the outdoor propaganda and display device in the above embodiment, the outdoor propaganda and display method will be further described:

rising:

the programmable logic controller controls the servo motor 315 to rotate forward, the first lifting device 32 moves upward, at this time, the first gear 321 rotates upward along the first rack 311 in a meshed manner, the third rack 331 meshed with the first gear 321 drives the second lifting device 33 to move upward, the second lifting device 33 moves upward, at this time, the second gear 332 rotates upward along the second rack 322 in a meshed manner, the fourth rack 341 meshed with the second gear 332 drives the third lifting device 34 to move upward, and in the process that the second lifting device 33 moves upward, the display mechanism 2 fixedly connected with the second lifting device is driven to move upward;

and (3) descending:

the programmable logic controller controls the servo motor 315 to rotate reversely, the first lifting device 32 moves downwards, at this time, the first gear 321 rotates downwards along the first rack 311 in a meshed manner, the third rack 331 meshed with the first gear 321 drives the second lifting device 33 to move downwards, the second lifting device 33 moves downwards, at this time, the second gear 332 rotates downwards along the second rack 322 in a meshed manner, the fourth rack 341 meshed with the second gear 332 drives the third lifting device 34 to move downwards, and in the process that the second lifting device 33 moves downwards, the display mechanism 2 fixedly connected with the display mechanism is driven to move downwards;

displaying:

the computer converts the video signal into digital RGB signal through the display card or multimedia card, at this moment, the digital RGB signal is temporarily stored in the controller for buffering and recombination, the buffered and recombined digital RGB signal is sent to the relay, and is sent to the corresponding display top plate 201 and/or display side plate 202 by the relay.

Based on the above, it is obvious that the embodiments of the outdoor propaganda and display device of the present invention can be changed and modified by the worker without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.