Outdoor LED display screen

Abstract

The utility model relates to the technical field of LED display screens, in particular to an outdoor LED display screen which comprises an installation frame, an installation frame is welded to the back face of the installation frame, a through hole is formed in the surface of the installation frame, a bolt is in threaded connection with the interior of the through hole, a display screen body is installed on the surface of the installation frame, and a heat dissipation opening is formed in the back face of the display screen body. A heat dissipation fan capable of rotating is arranged in the middle of the heat dissipation opening, an annular groove is formed in the side wall of the mounting frame, and a soft sweeping brush capable of sliding in a lifting mode is arranged in the annular groove. According to the outdoor LED display screen, the cleaning soft brush capable of horizontally sliding and rotating is arranged, the cleaning soft brush slides and rotates along the surface of the display screen for cleaning, dust on the surface of the display screen can be automatically and rapidly cleaned, manual cleaning is not needed while the cleaning efficiency is improved, the cooling fan is arranged in the cooling opening for rotating cooling, and the cooling effect is good. Damage of devices in the display screen caused by heat accumulation is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to an outdoor LED display screen. Background Art

[0002] LED display is a flat panel display composed of small LED module panels. It is a device used to display various information such as text, images, videos, etc. LED electronic display integrates microelectronics technology, computer technology, and information processing. It has the advantages of bright colors, wide dynamic range, high brightness, long life, stable and reliable operation, etc.

[0003] LED display screens are widely used in commercial media, cultural performance markets, sports stadiums, information dissemination, news releases, securities trading, etc. They can meet the needs of different environments. LED screens can realize the conversion between different forms of multiple information presentation modes and can be used indoors and outdoors. They have incomparable advantages over other display screens.

[0004] Outdoor LED display screens, as an outdoor display advertising media, are generally installed outdoors for use. Various debris and dust are easily attached to their surfaces. These debris and dust will block the display screen and affect the display work of the display screen. At present, most of the debris and dust cleaning of the display screen on the market is done by manual wiping. The dust cleaning is not only inefficient, but also requires climbing, which has a high safety risk. In addition, heat will accumulate inside the display screen after long-term use. The heat cannot be quickly discharged only through the heat dissipation port, which will cause damage to internal components and reduce the service life. Utility Model Content

[0005] The purpose of the utility model is to provide an outdoor LED display screen to solve the problem in the above background technology that the existing display screen is not easy to clean dust and heat when installed outdoors for a long time. To achieve the above purpose, the utility model provides the following technical solutions: an outdoor LED display screen, including a mounting frame, a mounting bracket welded on the back of the mounting frame, a through hole opened on the surface of the mounting bracket, a bolt is connected to the inner thread of the through hole, a display screen body is installed on the surface of the mounting frame, a heat dissipation port is opened on the back of the display screen body, a rotatable heat dissipation fan is arranged in the middle of the heat dissipation port, an annular groove is opened on the side wall of the mounting frame, and a soft cleaning brush that can be lifted and slid is arranged inside the annular groove.

[0006] Preferably, a mounting plate is fixed in the middle of the mounting frame, a first motor is fixed to the end of the mounting plate, a driving gear is fixed to the output end of the first motor through a coupling, driven gears are meshed at both ends of the driving gear, a rotating shaft is fixed in the middle of the driven gear, and the cooling fan is fixedly sleeved with the rotating shaft.

[0007] Preferably, a through slot is provided on the back side of the installation frame, a fixing plate is fixed in the middle of the through slot, and the rotating shaft is placed in the fixing plate for rotational connection.

[0008] Preferably, support plates are installed inside both ends of the installation frame, a second motor is fixed to the side ends of the support plates, a screw is fixedly connected to the output end of the second motor, and a slider is sleeved on the external thread of the screw.

[0009] Preferably, a third motor is fixed to the side wall of the support plate, the output end of the third motor is fixedly connected to a rotating rod, both ends of the rotating rod are fixed with limit strips, the outer movable sleeve of the rotating rod is connected with a worm, the top of the worm is meshed with a worm wheel, a connecting rod is fixed in the middle of the worm wheel, and the connecting rod is fixedly connected to the cleaning soft brush.

[0010] Preferably, two support plates are provided, a guide rod is fixedly connected between the two support plates, the slider is slidably sleeved with the guide rod, the screw rod and the rotating rod are placed between the two support plates for rotational movement, the connecting rod is rotationally connected with the slider, and the worm gear is placed in the slider for rotational movement.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the second motor is started to drive the screw to rotate, and the sliding block sleeved on the outside thereof slides horizontally along the guide rod immediately, thereby driving the cleaning soft brush installed at the end through the connecting rod to slide horizontally, and the third motor is started to drive the rotating rod to drive the worm to rotate. When the worm rotates, it meshes with the worm wheel, and the worm wheel is forced to drive the middle connecting rod to rotate, so that the cleaning soft brush at the end of the connecting rod rotates along the surface of the display screen and cleans, so that the dust on the surface of the display screen can be automatically and quickly cleaned, thereby improving the cleaning efficiency and eliminating the need for manual cleaning.

[0013] In the utility model, the first motor is started to drive the connecting shaft to drive the driving gear to rotate and mesh with the driven gear. The rotating shaft in the middle of the driven gear then drives the cooling fan to rotate in the heat dissipation port to dissipate heat, thereby avoiding heat accumulation and thus causing damage to the internal components of the display screen, thereby increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall isometric back structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 A schematic diagram of the structure in which the cooling fan is placed in the cooling port and rotates;

[0017] Figure 4 For the utility model Figure 1 Schematic diagram of the connection structure of the middle slider, screw rod and rotating rod;

[0018] Figure 5 For the utility model Figure 4 Schematic diagram of the internal structure of the middle slider.

[0019] In the figure:

[0020] 1. Installation frame;

[0021] 2. Mounting frame;

[0022] 3. Through hole;

[0023] 4. Bolts;

[0024] 5. Display screen body; 51. Heat dissipation vent;

[0025] 6. Cooling fan; 61. Mounting plate; 62. First motor; 63. Driving gear; 64. Driven gear; 65. Rotating shaft; 66. Fixing plate; 67. Through slot;

[0026] 7. Annular groove;

[0027] 8. cleaning soft brush; 81. support plate; 82. second motor; 83. screw rod; 84. slider; 85. guide rod; 86. third motor; 87. rotating rod; 88. limit strip; 89. worm; 810. worm wheel; 811. connecting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 4 The utility model provides a technical solution: an outdoor LED display screen, including a mounting frame 1, a mounting frame 2 is welded on the back of the mounting frame 1, a through hole 3 is opened on the surface of the mounting frame 2, a bolt 4 is connected to the inner thread of the through hole 3, a display screen body 5 is installed on the surface of the mounting frame 1, a heat dissipation port 51 is opened on the back of the display screen body 5, a rotatable heat dissipation fan 6 is arranged in the middle of the heat dissipation port 51, an annular groove 7 is opened on the side wall of the mounting frame 1, and a cleaning soft brush 8 that can be lifted and slid is arranged inside the annular groove 7.

[0030] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a mounting plate 61 is fixed in the middle of the mounting frame 2, a first motor 62 is fixed at the end of the mounting plate 61, a driving gear 63 is fixed to the output end of the first motor 62 through a coupling, driven gears 64 are meshed at both ends of the driving gear 63, a rotating shaft 65 is fixed in the middle of the driven gear 64, and the cooling fan 6 is fixedly sleeved with the rotating shaft 65.

[0031] It should be noted that the first motor drive 62 drives the coupling to drive the driving gear 63 to rotate, which belongs to the existing technology in this field, so it is not repeated. In addition, there are two driven gears 64, which are respectively engaged with the two ends of the driving gear 63. When the driving gear 63 rotates, the driven gears 64 at both ends will engage and rotate therewith, thereby driving the cooling fan 6 installed in the middle of the driven gear 64 through the rotating shaft 65 and placed in the heat dissipation port 51 in the display screen to rotate and dissipate heat. In addition, a dustproof net is provided on the surface of the heat dissipation port 51, which prevents dust from entering the display screen, and the heat dissipation port 51 is provided with a dustproof net to prevent dust from entering the display screen, which belongs to the existing technology in this field, so it is not repeated.

[0032] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a through slot 67 is provided on the back of the installation frame 1 , a fixing plate 66 is fixed in the middle of the through slot 67 , and a rotating shaft 65 is placed in the fixing plate 66 for rotational connection.

[0033] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, support plates 81 are installed inside both ends of the installation frame 1, and the side ends of the support plates 81 are fixed with second motors 82. The output end of the second motor 82 is fixedly connected with a screw rod 83, and the external thread of the screw rod 83 is sleeved with a slider 84.

[0034] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a third motor 86 is fixed to the side wall of the support plate 81, and a rotating rod 87 is fixedly connected to the output end of the third motor 86. Limiting strips 88 are fixed to both ends of the rotating rod 87. A worm 89 is movably sleeved on the outside of the rotating rod 87. A worm wheel 810 is meshed on the top of the worm 89. A connecting rod 811 is fixed in the middle of the worm wheel 810, and the connecting rod 811 is fixedly connected to the cleaning soft brush 8.

[0035] It should be noted that limit bars 88 are provided at both ends of the rotating rod 87, and the worm 89 is sleeved thereon. When the slider 84 slides horizontally, the worm 89 slides horizontally along the limit bars 88. When the rotating rod 87 rotates, the limit bars 88 at both ends thereof are engaged with the worm 89. Therefore, when the rotating rod 87 rotates, the worm 89 outside thereof rotates accordingly, thereby causing the worm 89 to engage with the worm wheel 810.

[0036] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, there are two support plates 81, a guide rod 85 is fixedly connected between the two support plates 81, a slider 84 is slidably sleeved with the guide rod 85, a screw rod 83 and a rotating rod 87 are placed between the two support plates 81 for rotational movement, a connecting rod 811 is rotationally connected with the slider 84, and a worm gear 810 is placed in the slider 84 for rotational movement.

[0037] It should be noted that the guide rod 85 is provided to guide and limit the sliding block 84 when it slides, and at the same time, the force on the sliding block 84 is uniform when it slides.

[0038] It should be noted that the specific models and specifications of the first motor 62, the second motor 82 and the third motor 86 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0039] The use method and advantages of the utility model: When the outdoor LED display screen is working, the working process is as follows:

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the bolts 4 are embedded in the through holes 3 of the mounting frame 2 and fixed to the wall, so that the display screen body 5 on the surface of the mounting frame 1 is installed outdoors for easy use;

[0041] The display screen body 5 will generate a large amount of heat during use. When dissipating the heat, the first motor 62 is started to drive the coupling to drive the driving gear 63 to rotate. When the driving gear 63 rotates, the driven gears 64 at both ends thereof are immediately engaged with it, and the rotating shaft 65 in the middle of the driven gear 64 is immediately rotated in the fixed plate 66. The cooling fan 6 sleeved on the outside of the rotating shaft 65 is immediately placed in the heat dissipation port 51 to rotate and dissipate the heat in the display screen, thereby avoiding heat accumulation and thus causing damage to the internal components of the display screen and improving the service life.

[0042] The surface of the display screen body 5 is adhered to dust when it is used outdoors for a long time. When cleaning it, the second motor 82 is started to drive the screw 83 to rotate. When the screw 83 rotates, the slider 84 sleeved on the outside thereof slides horizontally along the guide rod 85, and at the same time, the worm 89 inside the slider 84 slides horizontally along the limit strips 88 at both ends of the rotating rod 87. When the slider 84 slides, the cleaning soft brush 8 installed at the end through the connecting rod 811 slides horizontally along the surface of the display screen body 5 to clean. Then, the third motor 86 is started to drive the rotating rod 87 to rotate. When the rotating rod 87 rotates, the worm 89 rotates and meshes with the worm gear 810. The worm gear 810 rotates under force, and the connecting rod 811 in the middle also rotates in the slider 84. The cleaning soft brush 8 installed at the end of the connecting rod 811 also slides and rotates along the surface of the display screen body 5 to clean, so that the dust on the surface of the display screen can be automatically and quickly cleaned, avoiding manual climbing and cleaning. Not only is the cleaning efficiency high, but also no manual operation is required, reducing its labor intensity.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An outdoor LED display screen, comprising a mounting frame (1), characterized in that: A mounting frame (2) is welded to the back of the mounting frame (1), a through hole (3) is provided on the surface of the mounting frame (2), a bolt (4) is threadedly connected to the inside of the through hole (3), a display screen body (5) is mounted on the surface of the mounting frame (1), a heat dissipation port (51) is provided on the back of the display screen body (5), a rotatable heat dissipation fan (6) is provided in the middle of the heat dissipation port (51), an annular groove (7) is provided on the side wall of the mounting frame (1), and a soft cleaning brush (8) which can be raised and lowered and slid is provided inside the annular groove (7).

2. An outdoor LED display screen according to claim 1, characterized in that: A mounting plate (61) is fixed in the middle of the mounting frame (2), a first motor (62) is fixed at the end of the mounting plate (61), a driving gear (63) is fixed to the output end of the first motor (62) via a coupling, driven gears (64) are meshed at both ends of the driving gear (63), a rotating shaft (65) is fixed in the middle of the driven gear (64), and the cooling fan (6) is fixedly sleeved with the rotating shaft (65).

3. An outdoor LED display screen according to claim 2, characterized in that: A through slot (67) is provided on the back of the installation frame (1), a fixing plate (66) is fixed in the middle of the through slot (67), and the rotating shaft (65) is placed in the fixing plate (66) for rotational connection.

4. The outdoor LED display screen according to claim 1, characterized in that: Support plates (81) are installed inside the two ends of the installation frame (1), a second motor (82) is fixed to the side end of the support plate (81), a screw rod (83) is fixedly connected to the output end of the second motor (82), and a slider (84) is sleeved on the outer thread of the screw rod (83).

5. An outdoor LED display screen according to claim 4, characterized in that: A third motor (86) is fixed to the side wall of the support plate (81); an output end of the third motor (86) is fixedly connected to a rotating rod (87); limit strips (88) are fixed to both ends of the rotating rod (87); a worm (89) is movably sleeved on the outside of the rotating rod (87); a worm wheel (810) is meshed on the top of the worm wheel (89); a connecting rod (811) is fixed in the middle of the worm wheel (810); and the connecting rod (811) is fixedly connected to the cleaning soft brush (8).

6. An outdoor LED display screen according to claim 5, characterized in that: The support plates (81) are provided with two, a guide rod (85) is fixedly connected between the two support plates (81), the slider (84) is slidably sleeved with the guide rod (85), the screw rod (83) and the rotating rod (87) are arranged between the two support plates (81) for rotational movement, the connecting rod (811) is rotationally connected with the slider (84), and the worm gear (810) is arranged in the slider (84) for rotational movement.

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