Outdoor advertising machine with steerable display screen

Abstract

The outdoor advertising machine comprises an advertising board, the advertising board is rotationally arranged on an erecting base through a swing angle mechanism, the swing angle mechanism can abut against the bottom of the advertising board through a wedge-type convex set, the erecting base is movably erected on a ground clearance boss, and the display screen is arranged on the erecting base. A shielding plate is rotationally connected to the upper portion of a stand column on one side of the erecting base through a turnover mechanism and located over the advertisement board. The adjusting mechanism comprises a lead screw and a clutch assembly, the lower portion of the lead screw is in transmission connection with an output shaft of the motor through a tooth set, the lead screw rotates to drive the turnover mechanism to move up and down on one side of the advertisement board, and the motor drives the whole erecting base to rotate above the ground clearance boss through the clutch assembly. According to the advertising machine, the steering effect of the advertising machine is achieved, meanwhile, the stable effect in typhoon weather is provided, and automatic cleaning operation on the screen of the advertising machine can be conveniently achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor advertising machines, and in particular to an outdoor advertising machine with a rotatable display screen. Background Art

[0002] Outdoor advertising machines are digital display devices installed in outdoor environments. They are mainly used to play advertisements and information announcements. They use LCD or LED display technology to provide high brightness and clear images. To adapt to the outdoor environment, these devices have characteristics such as waterproof and dustproof, shock-resistant and anti-theft, and are equipped with advanced temperature control systems to cope with extreme temperatures. As market requirements increase, advertising machines on the market currently also have steering functions to provide display effects at multiple angles, thereby improving the effectiveness of advertising.

[0003] Although the steering of the advertising screen can effectively increase the display range, its stability is poorer than that of traditional fixed advertising machines. During outdoor use, the advertising machine screen will be affected by strong winds, which may easily cause the advertising machine to loosen from the base, and there is even a risk of it being overturned in typhoon weather. In addition, since the positioning effect of the steerable advertising machine is different from that of the traditional advertising machine, it is not convenient to set up a cleaning device, which means that the steerable advertising machine will have more problems during actual use.

[0004] Therefore, how to provide an outdoor advertising machine with a rotatable display screen is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] One object of the present invention is to provide an outdoor advertising machine with a steerable display screen. The present invention not only satisfies the steering effect of the advertising machine, but also provides a stable effect in typhoon weather and facilitates the automatic cleaning operation of the advertising machine screen.

[0006] According to an embodiment of the present invention, an outdoor advertising machine with a steerable display screen comprises an advertising board, which is rotatably arranged on a mounting seat by a swing angle mechanism, and the swing angle mechanism can also resist the bottom of the advertising board through a wedge-shaped convex group, the mounting seat is movably mounted on a raised platform off the ground, and a shielding plate is rotatably connected to the upper part of a column on one side of the mounting seat by a flip mechanism, and the shielding plate is located directly above the advertising board;

[0007] The adjusting mechanism includes a lead screw and a clutch assembly. The lead screw is connected to the output shaft of the motor through a gear set. The lead screw rotates to drive the flip mechanism to move up and down on one side of the advertising board. The motor drives the mounting seat to rotate above the ground boss through the clutch assembly. The clutch assembly can be clutched with the output shaft of the motor.

[0008] A plurality of water outlets are fixed on the surface of the shielding plate close to the advertising board, and the water outlets are connected to external water pipes through connecting pipes passing through the rotating axis of the shielding plate;

[0009] The limiting convex is fixed on the rotation axis position at the bottom of the advertising board, and the mounting seat is also fixedly provided with a resistance convex near the limiting convex. The limiting convex and the resistance convex rotate and resist each other. The maximum rotation angle of the advertising board above the mounting seat is limited to one hundred and eighty degrees through the resistance effect of the limiting convex and the resistance convex.

[0010] Furthermore, the swing angle mechanism includes a first electric rod, a meshing plate and a meshing wheel. The output end of the first electric rod is fixedly connected to the push rod. The two sides below the meshing plate are slidably connected to the surface of the push rod through sliding plates. The meshing plate is meshed on one side of the meshing wheel, and the meshing wheel is fixed on the rotating axis at the bottom of the advertising board.

[0011] Furthermore, the push rod is fixedly connected with a convex ring at a position between the two groups of sliding plates below the meshing plate, and a spring is elastically arranged between the convex ring and the sliding plate below the meshing plate. The push rod is elastically in contact with one side of the sliding plate below the meshing plate through the convex ring and the spring.

[0012] Furthermore, one side of the meshing plate is slidably arranged inside the mounting seat via a slider, and the first electric rod is fixed to one end of the mounting seat.

[0013] Furthermore, the swing angle mechanism also includes a wedge-type cam group, which includes two groups of wedge-type push cams and a wedge-type push frame. The two groups of wedge-type push cams and wedge-type push frames are respectively arranged on the left and right sides of the push rod in pairs. The wedge-type push cams are fixed to the push rod, and the wedge-type push frames are slid up and down on the top of the mounting seat.

[0014] Furthermore, the wedge-type push frame and the wedge-type push convex are wedge-type connected via an inclined groove, and the push rod drives the wedge-type push convex to move laterally inside the mounting seat. The wedge-type push frame is affected by the bottom wedge-type push convex to move upward and resist the bottom surface of the advertising board.

[0015] Furthermore, the flipping mechanism includes a protective shell and an electric motor, the electric motor is fixed on one side of the protective shell, a ring plate is movably mounted inside the protective shell, the upper and lower sides of the ring plate drive the baffle plate to rotate on one side of the protective shell through connecting rods, the rotation center of the baffle plate is located above one side of the advertising board, and a transmission block is fixedly connected to one side of the protective shell, and the transmission block is threadedly connected to the surface of the screw.

[0016] Furthermore, an external tube is fixed at the rotation axis position of one side of the baffle plate, and the water outlet on the surface of the baffle plate is connected to the external water pipe through the external tube. A bite protrusion is arranged in a ring on one side of the ring plate, and the bite protrusion and the spiral turbine are engaged with each other for transmission. The spiral turbine is fixed on the output shaft of the electric motor, and a limit groove is provided in the protective shell near the connecting rod, and the maximum rotation angle of the baffle plate is limited to ninety degrees by the limit groove.

[0017] Furthermore, the clutch assembly includes a shaft and a telescopic cylinder. The top of the shaft is rotatably connected to the output end of the second electric rod through a pressure sleeve. The shaft and the telescopic cylinder are telescopically slidable via a spline. A clutch tooth is fixed above the shaft. The clutch tooth and the transmission tooth are meshed with each other. The second electric rod pulls the shaft up to achieve transmission separation between the clutch tooth and the transmission tooth.

[0018] Furthermore, the telescopic cylinder is movably arranged on the side of the mounting seat through a limit seat, and a planetary gear is fixed on the bottom of the telescopic cylinder. The planetary gear and the annular meshing groove are meshed with each other. The annular meshing groove is arranged on the inner surface of the ground-lifting boss. The second electric rod is fixed on one side of the mounting seat. The rotation of the planetary gear drives the mounting seat as a whole to swing in position above the ground-lifting boss with the center of the annular meshing groove as the center of the circle.

[0019] The beneficial effects of the present invention are:

[0020] The present invention arranges an angle swing mechanism between the advertising board and the mounting seat. When the first electric rod pushes the push rod to move horizontally, it can simultaneously drive the meshing plate to move, thereby driving the meshing wheel to rotate, so as to meet the rotation effect of the advertising board on the top of the mounting seat, thereby providing a multi-angle display function. The rotation angle is limited by the interference of the limiting convex and the interference convex. After the mutual interference, the continuous pushing of the push rod will squeeze the spring, so that the push rod turns to push the wedge-type push frame to rise, and interfere with the bottom of the advertising board, thereby providing a stable effect in windy weather.

[0021] The present invention arranges a flipping mechanism between the shielding plate and the mounting seat, and after the protective shell is driven, it can drive the shielding plate to flip on the top of the advertising board, so that the water outlet on the bottom surface of the shielding plate is aligned with the side screen of the advertising board, and the water outlet is externally connected to a water pipe or an air pipe, which can effectively clean the surface of the advertising board, and the motor can drive the lead screw to rotate after being driven, and the protective shell moves up and down under the threaded connection between the transmission block and the lead screw, thereby driving the shielding plate as a whole to move up and down on one side of the advertising board for cleaning, so that the shielding plate can not only meet the shielding effect but also assist in the cleaning operation;

[0022] The present invention connects a clutch assembly under the motor. Under the driving effect of the second electric rod, the clutch teeth can be engaged or disengaged with the transmission teeth. When engaged, the transmission effect can directly drive the planetary gears to rotate through the telescopic cylinder and the shaft rod, and the planetary gears are engaged with the annular engagement grooves. In this way, the mounting seat as a whole will rotate above the ground-lifting boss with the center of the annular engagement groove teeth as the center, thereby changing the direction. It is further suitable for wind-resistant use in typhoon weather to prevent the steerable advertising board from being blown over by excessive wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of an outdoor advertising machine with a rotatable display screen proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure movement of an outdoor advertising machine with a rotatable display screen proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of a screw transmission structure of an outdoor advertising machine with a steerable display screen proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the transmission of a flip mechanism of an outdoor advertising machine with a rotatable display screen proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the disassembly of a clutch assembly of an outdoor advertising machine with a rotatable display screen proposed by the present invention;

[0029] Figure 6 A half-section schematic diagram of the internal structure of an outdoor advertising machine installation stand with a rotatable display screen proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the connection of the swing angle mechanism of an outdoor advertising machine with a steerable display screen proposed by the present invention;

[0031] Figure 8 The present invention proposes an outdoor advertising machine with a rotatable display screen Figure 1 A schematic diagram of the enlarged structure of point A;

[0032] Fig. 9 The present invention proposes an outdoor advertising machine with a rotatable display screen Figure 2 Enlarged schematic diagram of the structure at point B.

[0033] In the figure: 1. Advertising board; 2. Mounting base; 3. Ground-lifting platform; 4. Shielding plate; 5. Turning mechanism; 6. Angle swing mechanism; 7. Adjustment mechanism; 8. Water outlet;

[0034] 51. protective shell; 52. electric motor; 53. spiral turbine; 54. ring plate; 55. bite convex; 56. connecting rod; 57. external pipe; 61. first electric rod; 62. push rod; 63. wedge-shaped convex group; 64. convex ring; 65. spring; 66. meshing plate; 67. meshing wheel; 68. limit convex; 69. abutment convex; 71. electric motor; 72. gear group; 73. lead screw; 74. transmission block; 75. clutch assembly; 76. annular meshing groove;

[0035] 631, wedge-type push cam; 632, wedge-type push frame; 751, second electric rod; 752, shaft rod; 753, clutch gear; 754, telescopic cylinder; 755, planetary gear; 756, transmission gear. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] refer to Figure 1 , including an advertising board 1, which is rotatably arranged on a mounting seat 2 through a swing angle mechanism 6, and the swing angle mechanism 6 can also resist the bottom of the advertising board 1 through a wedge-shaped convex group 63, the mounting seat 2 is movably mounted on a raised platform 3 off the ground, and a shielding plate 4 is rotatably connected to the upper part of a column on one side of the mounting seat 2 through a flip mechanism 5, and the shielding plate 4 is located directly above the advertising board 1;

[0038] The adjusting mechanism 7 includes a lead screw 73 and a clutch assembly 75. The lead screw 73 is connected to the output shaft of the motor 71 through a gear set 72. The lead screw 73 rotates to drive the flip mechanism 5 to move up and down on one side of the advertising board 1. The motor 71 drives the mounting base 2 to rotate above the ground-lifting boss 3 as a whole through the clutch assembly 75. The clutch assembly 75 can realize transmission clutch with the output shaft of the motor 71.

[0039] A plurality of water outlets 8 are fixed on the surface of the shielding plate 4 close to the advertising board 1. The water outlets 8 are connected to external water pipes through connecting pipes passing through the rotating axis of the shielding plate 4.

[0040] The limiting protrusion 68 is fixed on the rotation axis position at the bottom of the advertising board 1. The mounting seat 2 is also fixed with a resistance protrusion 69 near the limiting protrusion 68. The limiting protrusion 68 and the resistance protrusion 69 are rotationally resisted. The maximum rotation angle of the advertising board 1 above the mounting seat 2 is limited to one hundred and eighty degrees through the resistance effect of the limiting protrusion 68 and the resistance protrusion 69.

[0041] In this embodiment, the advertising board 1 can be normally rotated above the mounting seat 2 through the swing angle mechanism 6 inside the mounting seat 2, which satisfies the steering effect in the prior art and increases the display area. However, unlike the prior art, a limiting protrusion 68 is fixed on the rotation axis position at the bottom of the advertising board 1, and a contact protrusion 69 is fixed at a position of the mounting seat 2 close to the limiting protrusion 68, so that the rotation angle is limited by the mutual movement distance between the limiting protrusion 68 and the contact protrusion 69. When the limiting protrusion 68 rotates to contact with the contact protrusion 69, the advertising board 1 cannot continue to rotate, and the transmission effect of the swing angle mechanism 6 will continue to work, so that the wedge-shaped protrusion group 63 is driven to contact the bottom of the advertising board 1, thereby improving the stability of the advertising board 1 and reducing the impact of wind.

[0042] A shielding plate 4 is arranged above the mounting seat 2 near the advertising board 1. When in normal use, the shielding plate 4 provides a shielding effect for the advertising board 1 to reduce the impact of wind and rain on it. The shielding plate 4 can also be flipped over above the advertising board 1 through a flipping mechanism 5, so that the bottom surface of the shielding plate 4 rotates to be flush with the side surface of the advertising board 1. At this time, the driving energy of the motor 71 drives the flipping mechanism 5 and the shielding plate 4 as a whole to descend on one side of the advertising board 1 through the lead screw 73. By arranging a water outlet 8 on the bottom surface of the shielding plate 4, the water outlet 8 can be externally connected to a water pipe or an air pipe, and the side surface of the advertising board 1 can be cleaned under the action of water spraying or blowing. With the maximum 180-degree rotation effect of the advertising board 1, both sides of the advertising board 1 can be cleaned separately, thereby realizing an automatic cleaning operation;

[0043] In addition to directly driving the flip mechanism 5 and the shielding plate 4 to move up and down on one side of the advertising board 1, the motor 71 is connected to a clutch assembly 75 below. The clutch assembly 75 can achieve transmission separation from the output shaft of the motor 71, similar to a clutch. When the transmission is engaged, the transmission effect can drive the mounting base 2 as a whole to change its direction above the ground-lift boss 3, so that its direction is the same as the wind direction, making it suitable for use in typhoon weather and reducing the wind force on the advertising board 1 as a whole.

[0044] refer to Figure 1 The swing angle mechanism 6 includes a first electric rod 61, a meshing plate 66 and a meshing wheel 67. The output end of the first electric rod 61 is fixedly connected to the push rod 62. The two sides below the meshing plate 66 are slidably connected to the surface of the push rod 62 through sliding plates. The meshing plate 66 is meshed on one side of the meshing wheel 67, and the meshing wheel 67 is fixed on the rotation axis at the bottom of the advertising board 1. The push rod 62 is fixedly connected with a convex ring 64 at a position between the two sets of sliding plates below the meshing plate 66. A spring 65 is elastically arranged between the convex ring 64 and the sliding plate below the meshing plate 66. The push rod 62 is elastically in contact with one side of the sliding plate below the meshing plate 66 through the convex ring 64 and the spring 65. One side of the meshing plate 66 is slidably arranged inside the mounting seat 2 through a slider, and the first electric rod 61 is fixed to one end of the mounting seat 2.

[0045] In this embodiment, the first electric rod 61 can drive the push rod 62 to move laterally inside the mounting seat 2 after being started, and the convex ring 64 in the middle position of the push rod 62 can push the spring 65, so that the spring 65 contacts with the single set of sliding plates below the meshing plate 66, and drives the meshing plate 66 to move under the action of elastic force, and the meshing plate 66 engages with the meshing wheel 67, so that the meshing wheel 67 can drive the advertising board 1 as a whole to rotate on the top of the mounting seat 2, thereby satisfying the normal steering function.

[0046] refer to Figure 1 The swing angle mechanism 6 also includes a wedge-shaped convex group 63, which includes two groups of wedge-shaped push convexities 631 and a wedge-shaped push frame 632. The two groups of wedge-shaped push convexities 631 and the wedge-shaped push frame 632 are respectively arranged on the left and right sides of the push rod 62 in pairs. The wedge-shaped push convexities 631 are fixed to the push rod 62, and the wedge-shaped push frame 632 is slidably arranged on the top of the mounting seat 2. The wedge-shaped push frame 632 is wedge-shaped connected to the wedge-shaped push convexities 631 through an inclined groove. The push rod 62 drives the wedge-shaped push convexities 631 to move horizontally inside the mounting seat 2. The wedge-shaped push frame 632 is affected by the bottom wedge-shaped push convexities 631 to move upward to resist the bottom surface of the advertising board 1.

[0047] In this embodiment, the push rod 62 will synchronously drive the wedge-shaped push protrusion 631 to move when being driven by the first electric rod 61, and the wedge-shaped push protrusion 631 will fit with the inclined surface below the wedge-shaped push frame 632 at a specified position, and can push the wedge-shaped push frame 632 to move upward under continuous pushing, until the protrusion above the wedge-shaped push frame 632 contacts the bottom surface of the advertising board 1, thereby stabilizing the advertising board 1;

[0048] More specifically, an elastic member may be provided between the wedge-type push frame 632 and the mounting seat 2 to ensure that the wedge-type push frame 632 can be continuously retracted in the groove opened at the top of the mounting seat 2, but this technical solution belongs to the conventional means adopted in the prior art, so it will not be elaborated on in detail.

[0049] It should be noted that the movement of the push rod 62 will first drive the meshing plate 66 to move until the limiting protrusion 68 at the bottom of the advertising board 1 conflicts with the interference protrusion 69 at the top of the mounting seat 2. At this time, the rotation position of the advertising board 1 is locked, and the continuous movement of the push rod 62 will not drive the advertising board 1 to rotate, but will squeeze the spring 65 between the convex ring 64 and the meshing plate 66. Therefore, the advertising board 1 will be restricted by the wedge-type push frame 632 only when the advertising board 1 is flush with the mounting seat 2. During normal operation, the wedge-type push frame 632 does not provide an interference effect. In this way, the advertising board 1 as a whole can have a stable effect when facing strong winds, and can be turned under normal circumstances.

[0050] refer to Figure 1The flip mechanism 5 includes a protective shell 51 and an electric motor 52. The electric motor 52 is fixed on one side of the protective shell 51. A ring plate 54 is movably mounted inside the protective shell 51. The upper and lower sides of the ring plate 54 drive the shielding plate 4 to rotate on one side of the protective shell 51 through a connecting rod 56. The center of rotation of the shielding plate 4 is located above one side of the advertising board 1. The protective shell 51 is fixedly connected to a transmission block 74 on one side. The transmission block 74 is threadedly connected to the surface of the lead screw 73. An external pipe 57 is fixed to the rotation axis position on one side of the shielding plate 4. The water outlet 8 on the surface of the shielding plate 4 is connected to the external water pipe through the external pipe 57. A bite convex 55 is annularly arranged on one side of the ring plate 54. The bite convex 55 and the spiral turbine 53 are engaged and transmitted. The spiral turbine 53 is fixed on the output shaft of the electric motor 52. A limit groove is provided near the connecting rod 56 of the protective shell 51, and the limit groove limits the maximum rotation angle of the shielding plate 4 to ninety degrees.

[0051] In this embodiment, the shielding plate 4 is connected to the upper and lower sides of the ring plate 54 through a connecting rod 56, and a bite protrusion 55 is fixedly provided on the side of the ring plate 54. After the electric motor 52 is driven, it can drive the spiral turbine 53 to rotate. The spiral turbine 53 and the bite protrusion 55 are engaged and transmitted, so that during the rotation of the spiral turbine 53, the ring plate 54 can be driven by the bite protrusion 55 to rotate normally 90 degrees inside the protective shell 51, thereby driving the shielding plate 4 to turn 90 degrees with the external pipe 57 as the center of the circle. The middle of the external pipe 57 can be hollowed out for connecting a water pipe or an air pipe, and the center of the circle is located above one side of the advertising board 1. In this way, after the shielding plate 4 is rotated, the water outlet 8 can be aligned with one side of the advertising board 1, thereby realizing the cleaning operation;

[0052] A transmission block 74 is fixed on one side of the protective shell 51, and the transmission block 74 is threadedly connected to the lead screw 73. When the lead screw 73 is driven to rotate by the motor 71, the transmission block 74 is restricted by the mounting seats 2 on both sides, so that the protective shell 51 and the baffle plate 4 can be driven to move up and down as a whole, so that the water outlet 8 is aligned with different positions of the side screen of the advertising board 1, thereby realizing the cleaning operation.

[0053] refer to Figure 1The clutch assembly 75 includes a shaft 752 and a telescopic cylinder 754. The top of the shaft 752 is rotatably connected to the output end of the second electric rod 751 through a pressure sleeve. The shaft 752 and the telescopic cylinder 754 are telescopically slidable through a spline. A clutch tooth 753 is fixed on the top of the shaft 752. The clutch tooth 753 and the transmission tooth 756 are meshed with each other. The second electric rod 751 pulls the shaft 752 upward to achieve transmission separation between the clutch tooth 753 and the transmission tooth 756. The telescopic cylinder 754 is movably arranged on the side of the mounting seat 2 through a limit seat. The bottom of the telescopic cylinder 754 is fixed with a planetary gear 755. The planetary gear 755 and the annular meshing groove 76 are meshed with each other. The annular meshing groove 76 is provided on the inner surface of the lifting boss 3. The second electric rod 751 is fixed on one side of the mounting seat 2. The rotation of the planetary gear 755 drives the mounting seat 2 as a whole to swing above the lifting boss 3 with the tooth center of the annular meshing groove 76 as the center.

[0054] In this embodiment, during normal driving of the motor 71, the lead screw 73 is not only driven to rotate by the gear set 72, but also the transmission gear 756 is directly driven to rotate below the lead screw 73. The transmission gear 756 is meshed with the clutch gear 753. The clutch gear 753 is subjected to force and can drive the planetary gear 755 to rotate on the inner side of the ground-lifting boss 3 through the connection between the shaft rod 752 and the telescopic cylinder 754. The ground-lifting boss 3 is provided with an annular meshing groove 76 near the planetary gear 755. In this way, the planetary gear 755 in the rotating state can drive the mounting seat 2 and the advertising board 1 to rotate as a whole above the ground-lifting boss 3, thereby changing the actual orientation of the mounting seat 2 and the advertising board 1, which is convenient for wind-resistant operation in typhoon weather and prevents the connection parts from being damaged by excessive wind.

[0055] In addition, the second electric rod 751 can normally pull the shaft 752 up and down, and the bottom of the shaft 752 and the telescopic tube 754 can telescope and slide, so that when the clutch tooth 753 is driven up by the shaft 752, the clutch tooth 753 can be separated from the transmission tooth 756. In this state, the motor 71 only drives the screw 73 to rotate to realize the up and down movement of the baffle 4.

[0056] Working principle: First, the first electric rod 61 in the swing angle mechanism 6 is driven. The first electric rod 61 pushes the push rod 62 to move horizontally inside the mounting seat 2. At the same time, under the limiting effect provided by the convex ring 64, the spring 65 can squeeze the meshing plate 66 to move synchronously inside the mounting seat 2, and the meshing plate 66 is meshed with the meshing wheel 67, and the meshing wheel 67 is fixed to the bottom of the advertising board 1. In this way, the advertising board 1 as a whole can rotate above the mounting seat 2 to change the actual direction of the advertising board 1. When it is necessary to clean the surface of the advertising board 1, the push rod 62 continues to move. When the advertising board 1 rotates to be flush with the mounting seat 2, the limiting convex 68 will conflict with the abutting convex 69. At this time, the spring 65 can no longer drive the meshing plate 66 to move, and the push rod 62 is pushed. The continuous movement of the rod 62 will drive the wedge-type push protrusion 631 to contact the bottom surface of the wedge-type push frame 632 on the top of the mounting seat 2. Under the pushing effect, the wedge-type push frame 632 resists the bottom of the advertising board 1, thereby realizing the restriction of the advertising board 1, which is suitable for fixed display operations in occasions with strong winds. At the same time, a flip mechanism 5 is arranged above the mounting seat 2. After being driven by the electric motor 52, the spiral turbine 53 can be driven to rotate inside the protective shell 51, and one side of the ring plate 54 is engaged with the spiral turbine 53 through the bite protrusion 55. In this way, the ring plate 54 can also rotate inside the protective shell 51, so that the shielding plate 4 is driven by the connecting rod 56 to rotate 90 degrees above the advertising board 1 with the outer pipe 57 as the center, so that the shielding plate 4 bottom surface is flush with the side of the advertising board 1, and then water or air is supplied to the water outlet 8 through the external pipe 57, and the water outlet 8 can wash the surface of the advertising board 1, and then the motor 71 is driven, and the motor 71 drives the lead screw 73 to rotate inside the mounting seat 2 through the gear set 72. Since one side of the protective shell 51 is threadedly connected with the lead screw 73 through the transmission block 74, the transmission block 74 can drive the flip mechanism 5 and the shielding plate 4 as a whole to move downward on one side of the advertising board 1, changing the alignment position of the water outlet 8 and the side of the advertising board 1, thereby achieving a better cleaning operation. Finally, in the face of typhoon weather, the shielding plate 4 will be flush with the advertising board 1, and the bottom of the motor 71 will directly drive the transmission gear 756 to drive the shielding plate 4 to move downward on the side of the advertising board 1. The movable clutch gear 753 rotates, and the shaft 752 can drive the telescopic cylinder 754 to rotate. The planetary gear 755 is fixed at the bottom of the telescopic cylinder 754, so that the planetary gear 755 engages with the annular engagement groove 76 opened on the inner side of the ground-lifting boss 3 during the rotation process. In this way, the mounting seat 2 and the advertising board 1 as a whole will be rotated above the ground-lifting boss 3, changing the actual orientation of the mounting seat 2 and the advertising board 1 to make it the same as the wind direction, which can better reduce the wind force and prevent the device from tipping over. In normal use, the second electric rod 751 can pull the shaft 752 and the telescopic cylinder 754 to slide and retract, so that the clutch gear 753 is separated from the transmission gear 756, so that the motor 71 only drives the screw 73 to rotate.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An outdoor advertising machine with a rotatable display screen, characterized in that: The invention comprises an advertising board (1), wherein the advertising board (1) is rotatably arranged on a mounting seat (2) via a swing angle mechanism (6), and the swing angle mechanism (6) can also resist the bottom of the advertising board (1) via a wedge-shaped convex group (63); the mounting seat (2) is movably mounted on a raised platform (3) off the ground; a shielding plate (4) is rotatably connected to the upper part of a column on one side of the mounting seat (2) via a flip mechanism (5); and the shielding plate (4) is located directly above the advertising board (1); An adjusting mechanism (7), the adjusting mechanism (7) comprising a lead screw (73) and a clutch assembly (75), the lead screw (73) being connected to the output shaft of the motor (71) through a gear set (72) at the bottom, the lead screw (73) rotating to drive the flipping mechanism (5) to move up and down on one side of the advertising board (1), the motor (71) driving the mounting seat (2) to rotate as a whole above the ground-lifting boss (3) through the clutch assembly (75), and the clutch assembly (75) can realize transmission clutch with the output shaft of the motor (71); A plurality of groups of water outlets (8) are fixed on the surface of the shielding plate (4) close to the advertising board (1), and the water outlets (8) are connected to external water pipes through connecting pipes passing through the rotating axis of the shielding plate (4); A limiting protrusion (68) is fixed at the rotation axis position at the bottom of the advertising board (1); a resisting protrusion (69) is also fixedly provided at a position of the mounting seat (2) close to the limiting protrusion (68); the limiting protrusion (68) and the resisting protrusion (69) are rotationally resisted, and the maximum rotation angle of the advertising board (1) above the mounting seat (2) is limited to one hundred and eighty degrees by the resisting effect of the limiting protrusion (68) and the resisting protrusion (69).

2. The outdoor advertising machine with a steerable display screen according to claim 1, characterized in that: The swing angle mechanism (6) comprises a first electric rod (61), a meshing plate (66) and a meshing wheel (67); the output end of the first electric rod (61) is fixedly connected to the push rod (62); the two sides below the meshing plate (66) are slidably connected to the surface of the push rod (62) via sliding plates; the meshing plate (66) is meshed on one side of the meshing wheel (67); and the meshing wheel (67) is fixed on the rotation axis at the bottom of the advertising board (1).

3. The outdoor advertising machine with a steerable display screen according to claim 2, characterized in that: The push rod (62) is fixedly connected with a convex ring (64) at a position between the two groups of sliding plates below the meshing plate (66), and a spring (65) is elastically arranged between the convex ring (64) and the sliding plate below the meshing plate (66). The push rod (62) is elastically in contact with one side of the sliding plate below the meshing plate (66) through the convex ring (64) and the spring (65).

4. The outdoor advertising machine with a steerable display screen according to claim 3, characterized in that: One side of the meshing plate (66) is slidably arranged inside the mounting seat (2) via a slider, and the first electric rod (61) is fixed to one end of the mounting seat (2).

5. The outdoor advertising machine with a steerable display screen according to claim 1, characterized in that: The swing angle mechanism (6) further comprises a wedge-shaped convex group (63), wherein the wedge-shaped convex group (63) comprises two groups of wedge-shaped pushing convexities (631) and a wedge-shaped pushing frame (632), wherein the two groups of wedge-shaped pushing convexities (631) and the wedge-shaped pushing frame (632) are respectively arranged on the left and right sides of the push rod (62) in pairs, wherein the wedge-shaped pushing convexities (631) are fixed to the push rod (62), and the wedge-shaped pushing frame (632) is arranged on the top of the mounting seat (2) in an upward and downward sliding manner.

6. The outdoor advertising machine with a steerable display screen according to claim 5, characterized in that: The wedge-type push frame (632) and the wedge-type push protrusion (631) are wedge-type connected via an inclined groove; the push rod (62) drives the wedge-type push protrusion (631) to move horizontally inside the mounting seat (2); the wedge-type push frame (632) is influenced by the bottom wedge-type push protrusion (631) to move upward and contact the bottom surface of the advertising board (1).

7. The outdoor advertising machine with a steerable display screen according to claim 1, characterized in that: The flip mechanism (5) comprises a protective shell (51) and an electric motor (52), wherein the electric motor (52) is fixed to one side of the protective shell (51), and a ring plate (54) is movably mounted inside the protective shell (51). The upper and lower sides of the ring plate (54) drive the shielding plate (4) to rotate on one side of the protective shell (51) through connecting rods (56), and the center of rotation of the shielding plate (4) is located above one side of the advertising board (1). One side of the protective shell (51) is fixedly connected to a transmission block (74), and the transmission block (74) is threadedly connected to the surface of the lead screw (73).

8. The outdoor advertising machine with a steerable display screen according to claim 7, characterized in that: An external pipe (57) is fixed at the rotation axis position of one side of the shielding plate (4); a water outlet (8) on the surface of the shielding plate (4) is connected to an external water pipe through the external pipe (57); a bite protrusion (55) is provided in an annular shape on one side of the ring plate (54); the bite protrusion (55) and the spiral turbine (53) are engaged with each other for transmission; the spiral turbine (53) is fixed on the output shaft of the electric motor (52); a limit groove is provided at a position close to the connecting rod (56) of the protective shell (51); and the limit groove limits the maximum rotation angle of the shielding plate (4) to ninety degrees.

9. The outdoor advertising machine with a steerable display screen according to claim 1, characterized in that: The clutch assembly (75) comprises a shaft (752) and a telescopic cylinder (754); the top of the shaft (752) is rotatably connected to the output end of the second electric rod (751) via a pressure sleeve; the shaft (752) and the telescopic cylinder (754) are telescopically slidable via a spline; a clutch tooth (753) is fixed above the shaft (752); the clutch tooth (753) and the transmission tooth (756) are meshed with each other; the second electric rod (751) pulls the shaft (752) upward to achieve transmission separation between the clutch tooth (753) and the transmission tooth (756).

10. The outdoor advertising machine with a steerable display screen according to claim 9, characterized in that: The telescopic cylinder (754) is movably arranged on the side of the mounting seat (2) through a limit seat, and a planetary gear (755) is fixed on the bottom of the telescopic cylinder (754). The planetary gear (755) is meshed with an annular meshing groove (76), and the annular meshing groove (76) is provided on the inner surface of the lifting boss (3). The second electric rod (751) is fixed on one side of the mounting seat (2). The planetary gear (755) rotates to drive the mounting seat (2) as a whole to swing above the lifting boss (3) with the tooth center of the annular meshing groove (76) as the center of the circle.

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