Outdoor multifunctional text broadcasting device

Abstract

The invention is suitable for the technical field of broadcasting, and provides an outdoor multifunctional text broadcasting device which comprises a shell, a broadcasting adjusting mechanism installed on the shell, a microphone installed at the top end of the broadcasting adjusting mechanism, and a dustproof contraction mechanism installed on a longitudinal rod and a fan plate and used for preventing wind and dust before and after broadcasting. The spraying adjusting mechanism is installed on the sector plate and abuts against the side plate, the side plate is pushed to slide along the top cover in the spraying process, and the liquid supply system sprays cleaning liquid outwards under the condition that the spraying adjusting mechanism works to clean the sector plate; the height and the inclination angle of the microphone can be freely adjusted, and broadcast content can be conveniently watched; the device has the characteristic of high environmental adaptability, and can be used in different weather and ensure the broadcasting quality; the broadcasting equipment can be subjected to dustproof treatment after being used, so that dust is prevented from being accumulated on the surfaces of the broadcasting equipment and the internal structure; and the fan plate and the outer surface of the elastic cloth can be automatically cleaned at regular intervals according to needs, and the cleanliness of the device is guaranteed while manual cleaning is not needed.

Description

Technical Field

[0001] The invention belongs to the technical field of broadcasting, and in particular relates to a multifunctional text and sound broadcasting device for outdoor use. Background Art

[0002] Cultural communication is a social activity that enables people to understand knowledge, concepts and value norms. There are two ways of cultural communication: text and sound. Among them, sound is fast and direct, and is widely used in schools, communities, parks and other occasions. The sound communication method uses a broadcasting device with sound, which has a microphone and a speaker. The communicator speaks through the microphone, and then connects the speaker and the microphone to spread the culture to people.

[0003] At present, the broadcasting device used outdoors places the speaker in a containing structure and pushes it through a walking device. After the microphone is adjusted, it is fixed by a first screw. The shielding device reduces the damage to the speaker from the outside and prevents the speaker from getting wet. However, the above-mentioned broadcasting device has a single function problem. The height of the microphone can only be adjusted in one direction, and the adjustment process is relatively cumbersome and inconvenient for actual operation. At the same time, the broadcasting is easily affected by the outside world. After the device is used for a period of time, dust is easily accumulated on the surface, and it is difficult to clean the surface. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a multifunctional text and audio transmission device for outdoor use, aiming to solve the problems existing in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: a multifunctional audio and video transmission device for outdoor use, comprising a housing, and further comprising: A longitudinal rod, wherein the longitudinal rod is fixedly mounted on the housing, and a fan plate is fixedly connected to the top end of the longitudinal rod; A sound broadcast adjustment mechanism, which is mounted on the housing and has a microphone mounted on its top, and changes the position of the microphone when the sound broadcast adjustment mechanism is in operation; A dustproof retracting mechanism, which is mounted on the longitudinal rod and the fan plate and is used to prevent wind and dust before and after broadcasting; A top cover, which is arranged on the top of the fan plate, and a side plate is slidably mounted on the side of the top cover; A spray regulating mechanism, wherein the spray regulating mechanism is mounted on the top of the fan plate, the free end of the spray regulating mechanism abuts against the side plate, and pushes the side plate to slide along the top cover during the spraying process; The liquid supply system is installed on the longitudinal rod and the spray regulating mechanism. When the spray regulating mechanism is working, the liquid supply system sprays cleaning liquid outward to clean the fan plate.

[0006] Preferably, the broadcast adjustment mechanism comprises a cylinder, a guide, a limit plate, a brake claw, a leaf spring and a limit pull rod; The cylinder is fixedly installed inside the shell, and a guide is slidably installed on the cylinder, and the guide is engaged with a limit plate arranged in the shell; A brake claw and a leaf spring are installed on the side of the limit plate, the brake claw abuts against the leaf spring, and the free end of the brake claw is embedded in the limit plate; A limit pull rod is also installed on the brake claw, and the limit plate is unlocked when the limit pull rod is pulled.

[0007] Preferably, the broadcast adjustment mechanism further includes a support, a telescopic member 1 and a controller; The support is hinged to the top of the guide member, the support is made of rubber material, and is provided with a groove for embedding the microphone; The telescopic member 1 is arranged between the housing and the support, and the two ends of the telescopic member 1 are respectively hinged thereto; The telescopic member 1 is also electrically connected to a controller external to the housing to facilitate adjustment of the position of the microphone.

[0008] Preferably, the dustproof retracting mechanism comprises an elastic cloth, a wire drawing, a storage groove, a weight bar, a winding machine, an arc ring and a notch; The elastic cloth is arranged at the bottom of the fan plate, and a storage groove for storing the elastic cloth is provided in the fan plate; The drawing wire is arranged in the fan plate and the longitudinal rod, one end of the drawing wire is connected to the elastic cloth, and the other end of the drawing wire is connected to a winding machine built in the housing, and is used to pull the elastic cloth to slide along the fan plate through the drawing wire; A weight bar is also arranged at the bottom end of the elastic cloth, and a draw cord is built into the weight bar; The arc-shaped ring is arranged on the outer side of the shell, and a notch is provided on the arc-shaped ring for fixing the positions of the elastic cloth and the counterweight bar.

[0009] Preferably, the spray adjustment mechanism comprises a bracket, a positioning pile, a movable rod, a limiting groove, a movable seat and a telescopic member 2; The bracket is symmetrically mounted on the upper surface of the fan plate, and a positioning pile is fixedly mounted on the top of the bracket, and the positioning pile is slidably connected to the limiting groove provided on the movable rod; The movable rods on both sides are hinged to the movable seat, and the movable seat is pushed by the telescopic member 2 arranged inside the top cover.

[0010] Preferably, the liquid supply system comprises a liquid supply box, a first infusion tube and a second infusion tube; The liquid supply box is installed in the shell, and the liquid supply box is connected with the hollow chamber inside the longitudinal rod; The movable seat and the movable rod are both provided with chambers, and the movable rod and the movable seat are connected through the second infusion tube. The movable seat is connected with the hollow chamber inside the longitudinal rod through the first infusion tube, and a plurality of evenly distributed spray holes are arranged at the free end of the movable rod.

[0011] Preferably, a fixing pile is fixedly installed on the side of the longitudinal rod, and a display screen is rotatably installed on the fixing pile; The display screen is connected to a fixing frame arranged on the side of the fixing pile, and the fixed end of the fixing frame is slidably connected to the movable end, and there is a damping force between the two; A sound box is also installed inside the shell, and a through hole is arranged on the shell at a position corresponding to the sound box.

[0012] The embodiment of the present invention provides a multifunctional outdoor broadcasting device, which can not only freely adjust the height and inclination of the microphone, but also facilitate viewing of the broadcast content; it has the characteristics of strong environmental adaptability and can be used in different weather conditions while ensuring the broadcast quality; the broadcasting equipment can be dust-proofed after use to avoid dust accumulation on the surface of the broadcasting equipment and its internal structure; the fan plate and the outer surface of the elastic cloth can be automatically cleaned regularly as needed, without the need for manual cleaning while ensuring the cleanliness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional structural diagram of a multifunctional audio and video transmission device for outdoor use provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a multifunctional audio and video transmission device for outdoor use provided by an embodiment of the present invention; Figure 3 for Figure 2 A partial enlarged view of the middle part; Figure 4 A cross-sectional view of a fan plate in a multifunctional outdoor audio and video transmission device provided by an embodiment of the present invention; Figure 5 A diagram showing a closed state of an elastic cloth in a multifunctional outdoor audio and video transmission device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a spray adjustment mechanism 300 in a multifunctional outdoor audio and video transmission device provided by an embodiment of the present invention; In the attached drawings: 1-housing; 2-longitudinal rod; 3-cylinder; 4-guide; 5-limiting plate; 6-brake claw; 7-leaf spring; 8-limiting pull rod; 9-support; 10-telescopic member 1; 11-controller; 12-fixing pile; 13-display screen; 14-fixing frame; 15-fan plate; 16-elastic cloth; 17-drawing; 18-storage slot; 19-weight bar; 20-winding machine; 21-arc Ring; 22-notch; 23-pull rope; 24-top cover; 25-side plate; 26-bracket; 27-positioning pile; 28-movable rod; 29-limiting groove; 30-movable seat; 31-telescopic part 2; 32-liquid supply box; 33-infusion tube 1; 34-infusion tube 2; 35-speaker; 36-through hole; 100-broadcasting adjustment mechanism; 200-dust-proof retracting mechanism; 300-spraying adjustment mechanism. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0016] like Figures 1 to 6 As shown, it is a structural diagram of a multifunctional outdoor audio-visual device provided by an embodiment of the present invention, comprising a housing 1, a longitudinal rod 2, a sound-broadcasting adjustment mechanism 100, a dust-proof retracting mechanism 200, a top cover 24, a spray adjustment mechanism 300 and a liquid supply system, wherein the longitudinal rod 2 is fixedly mounted on the housing 1, and a fan plate 15 is fixedly connected to the top of the longitudinal rod 2; the sound-broadcasting adjustment mechanism 100 is mounted on the housing 1, and a microphone is mounted on the top of the sound-broadcasting adjustment mechanism 100, and the position of the microphone is changed when the sound-broadcasting adjustment mechanism 100 is in operation; the dust-proof retracting mechanism 200 is mounted On the longitudinal rod 2 and the fan plate 15, it is used to prevent wind and dust before and after broadcasting; the top cover 24 is arranged on the top of the fan plate 15, and the side plate 25 is slidably installed on the side of the top cover 24; the spray adjustment mechanism 300 is installed on the top of the fan plate 15, and the free end of the spray adjustment mechanism 300 abuts against the side plate 25, and pushes the side plate 25 to slide along the top cover 24 during the spraying process; the liquid supply system is installed on the longitudinal rod 2 and the spray adjustment mechanism 300, and the liquid supply system sprays cleaning liquid outward when the spray adjustment mechanism 300 is working to clean the fan plate 15.

[0017] In one example of the present invention, a fixing pile 12 is fixedly installed on the side of the longitudinal rod 2, and a display screen 13 is rotatably installed on the fixing pile 12 for displaying text during broadcasting; the display screen 13 is connected to a fixing frame 14 arranged on the side of the fixing pile 12, and the fixed end and the movable end of the fixing frame 14 are slidably connected, and there is a damping force between the two, so as to facilitate free adjustment of the inclination angle of the display screen 13; in addition, a speaker 35 is also installed inside the outer shell 1, and a through hole 36 is provided on the outer shell 1 at a position corresponding to the speaker 35, so that the speaker 35 can smoothly transmit the sound to the outside.

[0018] like Figure 2 and Figure 3 As shown, as a preferred embodiment of the present invention, the broadcast adjustment mechanism 100 includes a cylinder 3, a guide member 4, a limit plate 5, a brake claw 6, a leaf spring 7 and a limit pull rod 8; The cylinder 3 is fixedly installed inside the shell 1, and a guide member 4 is slidably installed on the cylinder 3, and the guide member 4 is engaged with a limit plate 5 arranged in the shell 1; A brake claw 6 and a leaf spring 7 are installed on the side of the limit plate 5. The brake claw 6 abuts against the leaf spring 7, and the free end of the brake claw 6 is embedded in the limit plate 5. A limit pull rod 8 is also installed on the braking claw 6, and the limit plate 5 is unlocked when the limit pull rod 8 is pulled.

[0019] In one embodiment of the present invention, when the height of the microphone needs to be adjusted, the height of the microphone is adjusted according to the following figure: Figure 3 As a reference, the guide member 4 can be pulled outward to slide along the cylinder 3, and the guide member 4 drives the limit plate 5 to rotate counterclockwise along the shell 1, and the braking claw 6 swings clockwise. The leaf spring 7 is elastically deformed under the force, which can prevent the guide member 4 from falling due to gravity during use. When the broadcast is finished, the limit pull rod 8 is pulled outward, and the limit pull rod 8 drives the braking claw 6 to separate from the limit plate 5, and the guide member 4 falls to the initial position under the action of gravity.

[0020] like Figure 2 As shown, as another preferred embodiment of the present invention, the broadcast adjustment mechanism 100 further includes a support 9, a telescopic member 10 and a controller 11; The support 9 is hinged to the top of the guide member 4, and the support 9 is made of rubber material and has a groove for embedding the microphone. The telescopic member 10 is arranged between the housing 1 and the support 9, and the two ends of the telescopic member 10 are respectively hinged thereto; The telescopic member 10 is also electrically connected to a controller 11 external to the housing 1 to facilitate adjustment of the position of the microphone.

[0021] In one example of the present invention, the telescopic member 10 described in the present application can be a linear drive device such as a cylinder, a hydraulic cylinder, an electric cylinder, and an electric telescopic rod when actually used, and the extension amount of the telescopic member 10 can be changed by operating the controller 11, so as to pull the support 9 to swing along the top end of the guide member 4, thereby adjusting the angle of the support 9 and the microphone embedded thereon.

[0022] like Figure 1 , Figure 4 and Figure 5 As shown, as another preferred embodiment of the present invention, the dust-proof retracting mechanism 200 includes an elastic cloth 16, a wire drawing 17, a storage groove 18, a weight bar 19, a winding machine 20, an arc ring 21 and a notch 22; The elastic cloth 16 is arranged at the bottom of the fan plate 15, and a storage groove 18 for storing the elastic cloth 16 is opened in the fan plate 15; The drawing wire 17 is arranged in the fan plate 15 and the longitudinal rod 2, one end of the drawing wire 17 is connected to the elastic cloth 16, and the other end of the drawing wire 17 is connected to the winding machine 20 built in the housing 1, and is used to pull the elastic cloth 16 to slide along the fan plate 15 through the drawing wire 17; A weight bar 19 is also arranged at the bottom end of the elastic cloth 16, and a drawstring 23 is built into the weight bar 19; The arc ring 21 is arranged on the outer side of the housing 1 , and a notch 22 is provided on the arc ring 21 for fixing the positions of the elastic cloth 16 and the counterweight bar 19 .

[0023] In one embodiment of the present invention, when used on a sunny day, the winding machine 20 works to pull the drawing wire 17 to move, and the drawing wire 17 pulls the elastic cloth 16 to slide along the fan plate 15. The winding machine 20 stops working when the elastic cloth 16 completely stays in the storage groove 18. When there is wind, the elastic cloth 16 is lowered to reduce the impact of wind noise during broadcasting. After use, the elastic cloth 16 slides under the action of the gravity of the counterweight bar 19, and the pull rope 23 is pulled to fix the elastic cloth 16 and the counterweight bar 19 on the arc ring 21 to prevent dust from accumulating on the broadcasting equipment.

[0024] like Figure 1 and Figure 6 As shown in FIG. 1 , as another preferred embodiment of the present invention, the spray adjustment mechanism 300 includes a bracket 26 , a positioning pile 27 , a movable rod 28 , a limiting groove 29 , a movable seat 30 and a telescopic member 2 31 ; The bracket 26 is symmetrically mounted on the upper surface of the fan plate 15, and a positioning pile 27 is fixedly mounted on the top of the bracket 26. The positioning pile 27 is slidably connected to a limiting groove 29 provided on the movable rod 28; The movable rods 28 on both sides are hinged to the movable seat 30 , and the movable seat 30 is pushed by a telescopic member 31 arranged inside the top cover 24 .

[0025] In one embodiment of the present invention, when it is necessary to clean the surface of the fan plate 15 and the elastic cloth 16, the liquid supply system works, and the liquid is sprayed from the movable rod 28. At the same time, the telescopic member 31 works to push the movable seat 30 to rise and fall in the top cover 24. When the top cover 24 is raised and lowered, the movable rod 28 is pulled to swing along the positioning pile 27. During the swing, the movable rod 28 pushes the side plate 25 to slide along the top cover 24, and on the other hand, water is sprayed from the end to clean the fan plate 15 and the elastic cloth 16.

[0026] like Figure 2 and Figure 6 As shown, as another preferred embodiment of the present invention, the liquid supply system includes a liquid supply box 32, a liquid infusion tube 1 33 and a liquid infusion tube 2 34; The liquid supply box 32 is installed in the housing 1, and the liquid supply box 32 is connected to the hollow chamber inside the longitudinal rod 2; The movable seat 30 and the movable rod 28 are both provided with chambers therein, and the movable rod 28 and the movable seat 30 are connected via an infusion tube 2 34 , the movable seat 30 is connected to the hollow chamber inside the longitudinal rod 2 via an infusion tube 1 33 , and a plurality of evenly distributed spray holes are arranged at the free end of the movable rod 28 .

[0027] In one example of the present invention, the pump body built into the liquid supply box 32 works, and the cleaning liquid flows along the hollow chamber inside the longitudinal rod 2, enters the movable seat 30 through the infusion tube 1 33, and enters the movable rod 28 through the infusion tube 2 34, and finally is sprayed out from the spray hole at the end of the movable rod 28.

[0028] In summary, when the height of the microphone needs to be adjusted, the guide member 4 can be pulled outward to slide along the cylinder 3, and the guide member 4 drives the limit plate 5 to rotate counterclockwise along the shell 1, and the braking claw 6 swings clockwise. The leaf spring 7 is elastically deformed under force, which can prevent the guide member 4 from falling due to gravity during use. When the broadcast is finished, the limit pull rod 8 is pulled outward, and the limit pull rod 8 drives the braking claw 6 to separate from the limit plate 5, and the guide member 4 falls to the initial position under the action of gravity. The elongation of the telescopic member 10 can also be changed by operating the controller 11, so as to pull the support 9 along the cylinder 3. The top of the guide member 4 is swung to adjust the angle of the support 9 and the microphone embedded thereon. When broadcasting, the display screen 13 is turned along the fixed pile 12 to deflect for easy viewing of the content. If there is wind or rain, the elastic cloth 16 is lowered. When the weather is clear, the winding machine 20 works to pull the wire drawing 17 to move, and the wire drawing 17 pulls the elastic cloth 16 to slide along the fan plate 15. When the elastic cloth 16 completely stays in the storage groove 18, the winding machine 20 stops working. After use, the elastic cloth 16 and the counterweight bar 19 are pulled downward to fix the elastic cloth 16 and the counterweight bar 19 on the arc ring 21. To prevent dust from accumulating on the surface of the broadcasting equipment and internal parts, the telescopic member 2 31 pushes the movable seat 30 to rise and fall in the top cover 24. When the top cover 24 is raised and lowered, the movable rod 28 is pulled to swing along the positioning pile 27. The movable rod 28 pushes the side plate 25 to slide along the top cover 24 during the swing. The pump body built into the liquid supply box 32 works, and the cleaning liquid flows along the hollow chamber inside the longitudinal rod 2, enters the movable seat 30 through the infusion tube 1 33, and also enters the movable rod 28 through the infusion tube 2 34, and finally sprays out from the spray hole at the end of the movable rod 28 to spray the surface of the fan plate 15. When the water droplets move to the end of the fan plate 15, they move along the surface of the elastic cloth 16 to clean the outer surfaces of the fan plate 15 and the elastic cloth 16. The broadcasting device can not only freely adjust the height and inclination of the microphone, but also facilitate viewing of the broadcasting content. It has the characteristics of strong environmental adaptability and can be used in different weather conditions while ensuring the broadcasting quality. The broadcasting equipment can be dust-proofed after use to avoid dust accumulation on the surface of the broadcasting equipment and its internal structure. The outer surfaces of the fan plate 15 and the elastic cloth 16 can be automatically cleaned regularly as needed, without the need for manual cleaning while ensuring the cleanliness of the device.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional audio and video transmission device for outdoor use, comprising a housing, characterized in that: Also includes: A longitudinal rod, wherein the longitudinal rod is fixedly mounted on the housing, and a fan plate is fixedly connected to the top end of the longitudinal rod; A sound broadcast adjustment mechanism, which is mounted on the housing and has a microphone mounted on its top, and changes the position of the microphone when the sound broadcast adjustment mechanism is in operation; A dustproof retracting mechanism, which is mounted on the longitudinal rod and the fan plate and is used to prevent wind and dust before and after broadcasting; A top cover, which is arranged on the top of the fan plate, and a side plate is slidably mounted on the side of the top cover; A spray regulating mechanism, wherein the spray regulating mechanism is mounted on the top of the fan plate, the free end of the spray regulating mechanism abuts against the side plate, and pushes the side plate to slide along the top cover during the spraying process; The liquid supply system is installed on the longitudinal rod and the spray regulating mechanism. When the spray regulating mechanism is working, the liquid supply system sprays cleaning liquid outward to clean the fan plate.

2. The multifunctional audio and video transmission device for outdoor use according to claim 1, characterized in that: The broadcast adjustment mechanism comprises a cylinder, a guide, a limit plate, a brake claw, a leaf spring and a limit pull rod; The cylinder is fixedly installed inside the shell, and a guide is slidably installed on the cylinder, and the guide is engaged with a limit plate arranged in the shell; A brake claw and a leaf spring are installed on the side of the limit plate, the brake claw abuts against the leaf spring, and the free end of the brake claw is embedded in the limit plate; A limit pull rod is also installed on the brake claw, and the limit plate is unlocked when the limit pull rod is pulled.

3. The multifunctional audio and video transmission device for outdoor use according to claim 2, characterized in that: The broadcast adjustment mechanism also includes a support, a telescopic member 1 and a controller; The support is hinged to the top of the guide member, the support is made of rubber material, and is provided with a groove for embedding the microphone; The telescopic member 1 is arranged between the housing and the support, and the two ends of the telescopic member 1 are respectively hinged thereto; The telescopic member 1 is also electrically connected to a controller external to the housing to facilitate adjustment of the position of the microphone.

4. The multifunctional audio and video transmission device for outdoor use according to claim 1, characterized in that: The dustproof retracting mechanism comprises an elastic cloth, a wire drawing, a storage groove, a weight bar, a winding machine, an arc ring and a notch; The elastic cloth is arranged at the bottom of the fan plate, and a storage groove for storing the elastic cloth is provided in the fan plate; The drawing wire is arranged in the fan plate and the longitudinal rod, one end of the drawing wire is connected to the elastic cloth, and the other end of the drawing wire is connected to a winding machine built in the housing, and is used to pull the elastic cloth to slide along the fan plate through the drawing wire; A weight bar is also arranged at the bottom end of the elastic cloth, and a draw cord is built into the weight bar; The arc-shaped ring is arranged on the outer side of the shell, and a notch is provided on the arc-shaped ring for fixing the positions of the elastic cloth and the counterweight bar.

5. The multifunctional audio and video transmission device for outdoor use according to claim 1, characterized in that: The spray adjustment mechanism includes a bracket, a positioning pile, a movable rod, a limiting groove, a movable seat and a telescopic member 2; The bracket is symmetrically mounted on the upper surface of the fan plate, and a positioning pile is fixedly mounted on the top of the bracket, and the positioning pile is slidably connected to the limiting groove provided on the movable rod; The movable rods on both sides are hinged to the movable seat, and the movable seat is pushed by the telescopic member 2 arranged inside the top cover.

6. The multifunctional audio and video transmission device for outdoor use according to claim 5, characterized in that: The liquid supply system comprises a liquid supply box, a first infusion tube and a second infusion tube; The liquid supply box is installed in the shell, and the liquid supply box is connected with the hollow chamber inside the longitudinal rod; The movable seat and the movable rod are both provided with chambers, and the movable rod and the movable seat are connected through the second infusion tube. The movable seat is connected with the hollow chamber inside the longitudinal rod through the first infusion tube, and a plurality of evenly distributed spray holes are arranged at the free end of the movable rod.

7. The multifunctional audio and video transmission device for outdoor use according to claim 1, characterized in that: A fixing pile is fixedly installed on the side of the longitudinal rod, and a display screen is rotatably installed on the fixing pile; The display screen is connected to a fixing frame arranged on the side of the fixing pile, and the fixed end of the fixing frame is slidably connected to the movable end, and there is a damping force between the two; A sound box is also installed inside the shell, and a through hole is arranged on the shell at a position corresponding to the sound box.

Images