Recording device for tourism management

Abstract

The invention relates to the technical field of tourism management, and provides a tourism management recording device which comprises a supporting column and an equipment box, a camera and a controller are installed in the equipment box, a lens part of the camera forwards protrudes out of the front face of the equipment box, and a limiting frame is fixedly installed on the front face of the equipment box. The device further comprises an air inlet barrel located at the top of the device box, four sets of first air inlet grooves are formed in the outer surface of the air inlet barrel, and four sets of isolation plates are fixedly connected to the outer surface of the air inlet barrel. The device is matched with the first air inlet groove, natural air is utilized to the maximum extent, then through the sudden reduction design of the passing area of the first exhaust pipe, the second exhaust pipe and the alignment cylinder, the speed of airflow entering the first exhaust pipe and the second exhaust pipe is increased, and therefore the air blowing force of front end openings of the first exhaust pipe and the second exhaust pipe is increased; and the function of automatically cleaning the surface dust on the surface of the device is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of tourism management, and in particular to a recording device for tourism management. Background Art

[0002] Tourism management is an undergraduate major in ordinary colleges and universities. It is a new discipline established with the development of the national tourism economy and the growth of the tourism industry. It belongs to the next level of management. As the national tourism industry gradually develops, a group of professional talents will join it and engage in tourism management as senior specialized talents. At present, the recording device used in tourism management is mainly in the form of a video recording device, which has some problems in specific usage scenarios: the camera lens of the recording device will accumulate dust around it under the free flow of air, and the recording device is generally set at a fixed position in a tourist attraction. The long-term accumulation of dust on the camera lens will affect the line of sight and clarity of the camera, and the adhesion of dust is not conducive to the heat dissipation of the equipment. In the prior art, a special motor is generally set to drive the dust sweeping component to clean the camera lens, but this undoubtedly increases the use cost of the equipment. The way this device solves the equipment problem does not meet the standard of practicality, and the dust sweeping component will block the front of the lens, which will not only further affect the line of sight, but also affect the focus of the lens. Therefore, it is necessary for the present invention to design a low-cost and easy-to-maintain recording device for tourism management. Summary of the invention

[0003] The present invention provides a recording device for tourism management, which solves the problem in the related art that cleaning cannot be balanced with ensuring the sight line of the recording device lens.

[0004] The technical solution of the present invention is as follows: A recording device for tourism management, comprising a support and an equipment box, wherein a camera and a controller are respectively installed inside the equipment box, wherein the lens portion of the camera protrudes forward from the front of the equipment box, wherein a limit frame is fixedly installed on the front of the equipment box, and further comprising an air inlet cylinder located at the top of the equipment box, wherein the outer surface of the air inlet cylinder is provided with four groups of air inlet slots, wherein the outer surface of the air inlet cylinder is fixedly connected with four groups of isolation plates, wherein the upper and lower sides of the isolation plates are respectively fixedly connected with an upper baffle plate and a lower baffle plate, wherein a plurality of groups of filter screens are fixedly connected between the upper and lower baffle plates, and wherein the upper and lower sides of the inner wall of the air inlet cylinder are provided with a plurality of filter screens. A limiting ring 2 and a limiting ring 1 are respectively fixedly installed, an alignment cylinder is rotatably installed between the limiting ring 1 and the limiting ring 2, an air inlet groove 2 is opened on the front of the outer surface of the alignment cylinder, the air inlet groove 2 is opposite to a group of air inlet grooves 1 located on the front side, a plurality of sealing strips are glued to the outer surface of the alignment cylinder, an air guide mechanism is fixedly connected to the top of the alignment cylinder, an exhaust pipe 1 is fixedly connected to the front of the outer surface of the air inlet cylinder, and exhaust pipes 2 are fixedly connected to the left and right sides of the outer surface of the air inlet cylinder, and the front ends of the exhaust pipes 1 and 2 pass through the limiting frame and point to the lens part of the camera; The air guide mechanism includes a connecting column fixedly connected to the top of the alignment cylinder, an air guide plate 1 is fixedly connected to the rear side of the outer surface of the connecting column, an air guide plate 2 is fixedly connected to the back side of the air guide plate 1, and air guide blocks are fixedly connected to the left and right sides of the air guide plate 2.

[0005] Preferably, the equipment box is fixedly mounted on the top of the pillar, the controller is located directly behind the camera and is electrically connected via wires, and another set of wires is connected to the front of the controller and penetrates downward into the interior of the pillar.

[0006] Preferably, the filter screens are arranged into four groups and are evenly divided among the four groups of isolation plates. The sides of the filter screens are fixedly connected to the isolation plates. A return air groove is provided on the rear side of the outer surface of the alignment cylinder. The width of the return air groove is narrower than that of the second air inlet groove. The front sides of the inner walls of the exhaust pipes one and two are fixedly connected with water retaining blocks. The axes of the front ends of the exhaust pipes one and the two groups of the exhaust pipes two are tilted toward the lens part of the camera.

[0007] Preferably, the first and second limiting rings are provided with support grooves at one end facing the alignment tube, and multiple sets of balls are rotatably mounted at both ends of the air inlet tube, and the balls are adapted to rotate in the support grooves.

[0008] Preferably, the sealing strip is designed to be in the shape of an elongated strip, the outer side of the sealing strip is in sealing contact with the inner wall of the air inlet cylinder, and the sealing strip is made of a rubber block.

[0009] Preferably, the second air guide plate is made of foam, the outer side of the second air guide plate is coated with glue, and the plane where the connecting column, the first air guide plate and the second air guide plate are located can evenly divide the second air inlet slot.

[0010] Preferably, the exhaust pipe 1 is higher than the exhaust pipe 2, and the water retaining block is semicircular in shape.

[0011] Preferably, the two groups of air guide blocks are symmetrically distributed on the left and right sides of the second air guide plate, and one side of the air guide block is designed as an arc concave.

[0012] Preferably, the filter screen is designed to be in an arc shape, and the filter screen is concentrically and coaxially distributed with the air inlet cylinder and the alignment cylinder, and the four groups of filter screens correspond to four groups of air inlet slots one respectively.

[0013] Preferably, the diameters of the upper baffle plate and the lower baffle plate are equal and larger than the diameter of the filter screen.

[0014] The working principle and beneficial effects of the present invention are: 1. This device has been completely redesigned so that the camera lens can realize the function of automatically cleaning the dust on the surface in real time without any power components, which greatly reduces the manufacturing cost. This device is provided with an air inlet tube located at the top of the equipment box, a freely rotatable alignment tube is installed, and an air inlet slot 2 is opened on the surface of the alignment tube, so as to actively obtain natural wind and convert it into functional wind for cleaning the dust on the surface of the camera lens. By providing an air guide mechanism and forming a mechanism in which the air guide plate 1, the air guide plate 2 and the air guide block swing with the wind, the connecting column and the alignment tube are driven to swing with the wind as a whole, so that the air inlet slot 2 opened on the surface of the alignment tube can be rotated to the air outlet, and cooperate with the air inlet slot 1 to maximize the use of natural wind. Subsequently, through the design of a sudden reduction in the passing area of ​​the exhaust pipe 1, the exhaust pipe 2 and the alignment tube, the air flow velocity entering the exhaust pipe 1 and the exhaust pipe 2 is increased, thereby increasing the wind force of the front end openings of the exhaust pipe 1 and the exhaust pipe 2, so that the function of automatically cleaning the dust on the surface of the device can be realized.

[0015] 2. The present invention installs multiple groups of filter screens between the upper baffle plate and the lower baffle plate to filter the air entering the air inlet cylinder and the alignment cylinder. When the air guide mechanism drives the alignment cylinder and the second air inlet slot opened on its surface to rotate to the air outlet of the natural wind, a part of the natural wind entering the alignment cylinder is led out to the inner side of the filter screen on the other side by opening a return air slot symmetrically distributed with the second air inlet slot, forming an air flow recoil, and the filter screen located in the opposite direction is synchronously cleaned in the opposite direction, while the remaining natural wind flows downward accordingly. This design not only enables the filter screen to have a self-cleaning function, but also reduces the maintenance cost of the device, and is particularly suitable for areas covered with vegetation in natural scenic spots. At the same time, the filter screen and the air inlet cylinder are fixedly arranged, which reduces the load on the alignment cylinder during movement and reduces the energy consumed when the natural wind enters the alignment cylinder.

[0016] 3. The device is also designed with one group of exhaust pipes 1 and two groups of exhaust pipes 2. Exhaust pipes 2 are lower than exhaust pipes 1. On rainy days, the height difference between the two is designed to make rainwater first gather and flow into exhaust pipes 2, and then gather into exhaust pipes 1. The semicircular water retaining blocks installed inside the exhaust pipes 1 and 2 are used to keep the rainwater level in the exhaust pipes 1 and 2 on the horizontal diameter line. This design not only reduces the passing area of ​​the inner cavity of exhaust pipes 1 and 2, and further increases the air flow rate, but also when the rainwater level rises and passes over the water retaining blocks, the surface of the camera lens is further cleaned under the drive of accelerated air, thereby improving the practicability of the device. The high-speed flowing air can continuously impact the surface of the camera, reducing the visual interference of the camera lens when facing rainwater adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the separation of the alignment cylinder, the air guide mechanism, the first limiting ring, the second limiting ring, the upper baffle, the lower baffle, the isolation plate, the first exhaust pipe, the second exhaust pipe, the filter screen and the sealing strip of the present invention; Figure 2 It is a front perspective schematic diagram of the overall structure of the present invention; Figure 3 It is a side cutaway schematic diagram of the overall structure of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at center A; Figure 5 It is a schematic diagram of the separation of the air inlet tube, the alignment tube, the air guide mechanism, the second limit ring, the upper baffle, the lower baffle, the isolation plate, the filter screen, the first exhaust pipe, the second exhaust pipe and the water retaining block of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle; Figure 7 It is a top view cutaway schematic diagram of the upper baffle, the lower baffle, the isolation plate and the filter screen of the present invention; Figure 8 It is a schematic diagram of the separation of the alignment cylinder, the air guide mechanism, the first limiting ring, the second limiting ring and the ball according to the present invention; Fig. 9 It is a partial front cutaway schematic diagram of the air inlet tube, the alignment tube and the air guide mechanism of the present invention.

[0019] In the figure: 1. pillar; 2. equipment box; 3. camera; 4. limit frame; 5. controller; 6. air inlet tube; 7. alignment tube; 8. air guide mechanism; 81. connecting column; 82. air guide plate 1; 83. air guide plate 2; 84. air guide block; 9. limit ring 1; 10. limit ring 2; 11. support groove; 12. ball bearing; 13. upper baffle plate; 14. lower baffle plate; 15. isolation plate; 16. filter screen; 17. exhaust pipe 1; 18. exhaust pipe 2; 19. water retaining block; 20. air inlet slot 1; 21. air inlet slot 2; 22. sealing strip; 23. return air slot. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: A recording device for tourism management, comprising a support column 1 and an equipment box 2, wherein a camera 3 and a controller 5 are respectively installed inside the equipment box 2, wherein the lens portion of the camera 3 protrudes forward from the front of the equipment box 2, wherein a limit frame 4 is fixedly installed on the front of the equipment box 2, and further comprising an air inlet 6 located at the top of the equipment box 2, wherein the outer surface of the air inlet 6 is provided with four groups of air inlet slots 20, wherein the outer surface of the air inlet 6 is fixedly connected with four groups of isolation plates 15, wherein the upper and lower sides of the isolation plates 15 are respectively fixedly connected with an upper baffle plate 13 and a lower baffle plate 14, wherein a plurality of groups of filter screens 16 are fixedly connected between the upper and lower baffle plates 13 and the lower baffle plate 14, wherein the upper and lower sides of the inner wall of the air inlet 6 are provided with a plurality of filter screens 16 ... A limiting ring 10 and a limiting ring 1 9 are fixedly installed on the sides respectively, and an alignment tube 7 is rotatably installed between the limiting ring 1 9 and the limiting ring 10. An air inlet groove 21 is provided on the front of the outer surface of the alignment tube 7. The air inlet groove 21 is opposite to a group of air inlet grooves 1 20 located on the front side. Multiple groups of sealing strips 22 are glued to the outer surface of the alignment tube 7. An air guide mechanism 8 is fixedly connected to the top of the alignment tube 7. An exhaust pipe 17 is fixedly connected to the front of the outer surface of the air inlet tube 6. Exhaust pipes 18 are fixedly connected to the left and right sides of the outer surface of the air inlet tube 6. The front ends of the exhaust pipes 17 and 18 pass through the limiting frame 4 and point to the lens part of the camera 3. The air guide mechanism 8 includes a connecting column 81 fixedly connected to the top of the alignment tube 7, a first air guide plate 82 is fixedly connected to the rear side of the outer surface of the connecting column 81, a second air guide plate 83 is fixedly connected to the back of the first air guide plate 82, and air guide blocks 84 are fixedly connected to the left and right sides of the second air guide plate 83; The device is newly designed to enable the lens of the camera 3 to realize the function of automatically cleaning the dust on the surface in real time without any power components, which greatly reduces the manufacturing cost. The device is provided with an air inlet cylinder 6 located at the top of the equipment box 2, a freely rotatable alignment cylinder 7 is installed, and an air inlet slot 21 is opened on the surface of the alignment cylinder 7, so as to actively obtain natural wind and convert it into functional wind for cleaning the dust on the surface of the lens of the camera 3. By providing an air guide mechanism 8, an air guide plate 1 82, an air guide plate 2 83 and an air guide block 8 are formed. The mechanism of swinging with the wind drives the connecting column 81 and the alignment tube 7 to swing with the wind as a whole, so that the air inlet groove 21 opened on the surface of the alignment tube 7 can be rotated to the air outlet, and cooperate with the air inlet groove 1 20 to maximize the use of natural wind. Subsequently, through the design of a sudden reduction in the passing area of ​​the exhaust pipe 1 17, the exhaust pipe 2 18 and the alignment tube 7, the air flow speed entering the exhaust pipe 1 17 and the exhaust pipe 2 18 is increased, thereby increasing the wind force of the front end opening of the exhaust pipe 1 17 and the exhaust pipe 2 18, so that the function of automatically cleaning the dust on the surface of the device can be realized.

[0022] Embodiment 2: The equipment box 2 is fixedly mounted on the top of the pillar 1, the controller 5 is located directly behind the camera 3 and is electrically connected via wires, and another set of wires is connected to the front of the controller 5 and penetrates downward into the interior of the pillar 1; The wires connected to the controller 5 and entering the interior of the pillar 1 provide power supply and signal exchange functions for the entire device. The camera 3 and the main body of the controller 5 are located inside the equipment box 2, which can play a safety protection function.

[0023] Embodiment 3: The filter screen 16 is arranged in four groups and is evenly divided between the four groups of isolation plates 15. The side of the filter screen 16 is fixedly connected to the isolation plate 15. A return air slot 23 is provided on the rear side of the outer surface of the cylinder 7. The width of the return air slot 23 is narrower than the second air inlet slot 21. The front sides of the inner walls of the exhaust pipe 1 17 and the exhaust pipe 2 18 are fixedly connected with a water retaining block 19. The axes of the front ends of the exhaust pipe 1 17 and the two groups of exhaust pipes 2 18 are tilted to point to the lens part of the camera 3. The present invention installs multiple groups of filter screens 16 between the upper baffle plate 13 and the lower baffle plate 14 to filter the air entering the air inlet cylinder 6 and the alignment cylinder 7. When the air guide mechanism 8 drives the alignment cylinder 7 and the air inlet groove 21 opened on its surface to rotate to the air outlet of natural wind, a part of the natural wind entering the alignment cylinder 7 is led out to the inner side of the filter screen 16 on the other side by opening the return air groove 23 symmetrically distributed with the air inlet groove 21, so as to form an air flow recoil, and the filter screen 16 located opposite is synchronously reversely cleaned, while the remaining natural wind flows downward accordingly. This design not only enables the filter screen 16 to have a self-cleaning function, but also reduces the maintenance cost of the device, and is particularly suitable for places covered with vegetation in natural scenic spots. At the same time, the filter screen 16 and the air inlet cylinder 6 are fixedly arranged, which reduces the load of the alignment cylinder 7 during movement and reduces the energy consumed when the natural wind enters the alignment cylinder 7.

[0024] The device is also designed with a group of exhaust pipes 17 and two groups of exhaust pipes 2 18. Exhaust pipes 2 18 are lower than exhaust pipes 17. On rainy days, the height difference between the two is designed to make rainwater first gather and flow into exhaust pipes 2 18, and then gather into exhaust pipes 17. The semicircular water retaining block 19 installed inside the exhaust pipes 17 and 18 keeps the rainwater level in exhaust pipes 17 and 18 on the horizontal diameter line of exhaust pipes 17 and 18. This design not only reduces the passing area of ​​the inner cavity of exhaust pipes 17 and 18, but also further increases the air flow rate. When the rainwater level rises and passes over the water retaining block 19, the lens surface of camera 3 is further cleaned under the drive of accelerated air, thereby improving the practicability of the device. In addition, the high-speed flowing air can continuously impact the surface of camera 3, thereby reducing the visual interference of the lens of camera 3 when facing rainwater adhesion.

[0025] Embodiment 4: The limiting ring 1 9 and the limiting ring 2 10 are provided with a support groove 11 at one end facing the alignment tube 7, and multiple sets of balls 12 are rotatably installed at both ends of the air inlet tube 6, and the balls 12 are adapted to rotate in the support groove 11; like Fig. 9 As shown, the alignment cylinder 7 is rotatably installed between the limit ring 1 9 and the limit ring 2 10, and multiple groups of balls 12 are rotatably installed between the alignment cylinder 7 and the limit ring 1 9 and the limit ring 2 10 to provide rotation support for the alignment cylinder 7 during rotation and reduce the rotation resistance generated by the alignment cylinder 7 when being driven to rotate.

[0026] Embodiment 5: The sealing strip 22 is designed in a long strip shape, and the outer side of the sealing strip 22 is in sealing contact with the inner wall of the air inlet tube 6, and the sealing strip 22 is made of a rubber block; Among them, the sealing strip 22 abuts against the inner wall of the air inlet cylinder 6, and the solid part in the middle of the air inlet cylinder 6 with multiple groups of air inlet grooves 20 is sealed with the air inlet cylinder 6. When the alignment cylinder 7 is rotated to a position aligned with a group of air inlet grooves 20, the sealing strips 22 on both sides thereof abut against the inner wall of the air inlet cylinder 6 to form a seal.

[0027] Embodiment 6: The second air guide plate 83 is made of foam, and the outer side of the second air guide plate 83 is coated with glue. The plane where the connecting column 81, the first air guide plate 82 and the second air guide plate 83 are located can evenly divide the second air inlet slot 21; The second wind guide plate 83 is made of a lightweight material. When the natural wind blows the wind guide mechanism 8, the second wind guide plate 83 swings with the wind with its large-area solid part, thereby reducing the rotational resistance generated by the wind guide mechanism 8 when it rotates.

[0028] Embodiment 7: The exhaust pipe 1 17 is higher than the exhaust pipe 2 18, and the water retaining block 19 is in a semicircular shape; The water retaining block 19 is located in the middle position. If the rainwater collected at the bottom of the air inlet tube 6 flows out from here, it will block the shooting line of sight of the camera 3. Therefore, the exhaust pipe 18 is set slightly lower to assist the air inlet tube 6 and the water retaining block 19 to discharge the overflowing rainwater first.

[0029] Embodiment 8: Two groups of air guide blocks 84 are symmetrically distributed on the left and right sides of the second air guide plate 83, and one side of the air guide block 84 is designed as an arc concave; The inner arc concave design of the air guide block 84 can assist the natural wind in aligning the air guide plate 2 83 , ensuring that the connecting column 81 , the air guide plate 1 82 and the air guide plate 2 83 swing with the wind.

[0030] Embodiment 9: The filter screen 16 is designed in an arc shape, and the filter screen 16 is coaxially distributed with the air inlet cylinder 6 and the alignment cylinder 7. The four groups of filter screens 16 correspond to the four groups of air inlet slots 20 respectively. The filter screen 16 with arc design has a better stress-bearing shape, and its arc design can effectively filter out impurities and some environmental garbage in the control.

[0031] Embodiment 10: The diameters of the upper baffle 13 and the lower baffle 14 are equal and larger than the diameter of the filter screen 16 .

[0032] The upper baffle 13 and the lower baffle 14 are used to block most of the rainwater on rainy days to prevent a large amount of rainwater from flowing back into the device. The upper baffle 13 and the lower baffle 14 leave a certain distance from the outer edge of the filter screen 16, which brings certain obstacles to the collection of rainwater.

[0033] Working principle: When the device is in use, the support 1 is installed at a location in the scenic area for recording and filming, and its internal guide passes through the ground downward and is connected to a power source. The controller 5 controls the camera 3 to start and shoot the predetermined recording scene and location; First, the natural wind will blow the entire air guide mechanism 8, so that the air guide plate 1 82, the air guide plate 2 83 and the air guide block 84 are stressed, driving the connecting column 81 to rotate, and then driving the alignment cylinder 7 to rotate, so that the side of the alignment cylinder 7 with the air inlet groove 21 is facing the air outlet, and the natural wind enters the alignment cylinder 7 through the filtering effect of the filter screen 16 facing the front of the air inlet groove 21, and a part of the natural wind passes through the return air groove 23 and blows to the opposite filter screen 16, so that the group of filter screens 16 are recoiled and cleaned; Then, the remaining natural wind flows downward along the inner wall of the alignment tube 7 to the bottom of the alignment tube 7, and enters the exhaust pipe 1 17 and the exhaust pipe 2 18 respectively. Since the diameters of the exhaust pipe 1 17 and the exhaust pipe 2 18 are much smaller than the inner diameter of the air inlet tube 6, the air speed entering the exhaust pipe 1 17 and the exhaust pipe 2 18 is accelerated, and is ejected along the front end thereof. The filtered and accelerated high-energy air can continuously impact and clean the lens part of the camera 3, and can effectively remove dust on the surface of the lens of the camera 3. On rainy days, the filter 16 can intercept part of the rainwater. As the wind blows, the rainwater enters the alignment tube 7 and the air inlet tube 6 and collects at the bottom of the air inlet tube 6. Since the exhaust pipe 17 is higher than the exhaust pipe 2 18, the collected rainwater first enters the exhaust pipe 2 18 on both sides after the liquid level rises. When the rainwater enters the exhaust pipe 2 18, it will be blocked by the water retaining block 19, and a liquid level of half the inner diameter of the exhaust pipe 2 18 will be formed inside the exhaust pipe 2 18. As more rainwater collects, it will turn over the water retaining block 19 and flow along the exhaust pipe 2 18. Driven by the air with increased flow rate, part of the rainwater will blow toward the lens surface of the camera 3. With the continuous output of high-pressure air, the lens surface of the camera 3 is cleaned to improve the clarity of the shooting. Finally, after the liquid level rises, on the one hand, rainwater enters exhaust pipe 17 and is blocked by the water retaining block 19 located therein, and three groups of semicircular air flow cavities are formed in the inner walls of exhaust pipe 17 and exhaust pipe 2 18, which further increase the air flow rate. On rainy days, it helps to blow away the moisture that falls on the surface of the lens of camera 3. When the wind force decreases, the collected rainwater will be discharged preferentially from the front end openings of exhaust pipe 2 18 on both sides, and will not affect the shooting line of sight of camera 3.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A recording device for tourism management, comprising a support (1) and an equipment box (2), wherein a camera (3) and a controller (5) are installed inside the equipment box (2), the lens portion of the camera (3) protrudes forward from the front of the equipment box (2), and a limit frame (4) is fixedly installed on the front of the equipment box (2), characterized in that: The device also includes an air inlet cylinder (6) located at the top of the equipment box (2), the outer surface of the air inlet cylinder (6) is provided with four groups of air inlet grooves (20), the outer surface of the air inlet cylinder (6) is fixedly connected with four groups of isolation plates (15), the upper and lower sides of the isolation plates (15) are respectively fixedly connected with an upper baffle plate (13) and a lower baffle plate (14), a plurality of groups of filter screens (16) are fixedly connected between the upper and lower baffle plates (13) and the lower baffle plate (14), the upper and lower sides of the inner wall of the air inlet cylinder (6) are respectively fixedly installed with a limit ring (10) and a limit ring (9), and an alignment cylinder (7) is rotatably installed between the limit ring (9) and the limit ring (10). ), the front side of the outer surface of the alignment tube (7) is provided with an air inlet groove 2 (21), the air inlet groove 2 (21) is opposite to a group of the air inlet grooves 1 (20) located at the front side, a plurality of sealing strips (22) are glued to the outer surface of the alignment tube (7), the top end of the alignment tube (7) is fixedly connected to an air guide mechanism (8), the front side of the outer surface of the air inlet tube (6) is fixedly connected to an exhaust pipe 1 (17), the left and right sides of the outer surface of the air inlet tube (6) are fixedly connected to exhaust pipe 2 (18), the front ends of the exhaust pipe 1 (17) and the exhaust pipe 2 (18) both pass through the limit frame (4) and point to the lens portion of the camera (3); The air guide mechanism (8) comprises a connecting column (81) fixedly connected to the top of the alignment cylinder (7); an air guide plate 1 (82) is fixedly connected to the rear side of the outer surface of the connecting column (81); an air guide plate 2 (83) is fixedly connected to the back side of the air guide plate 1 (82); and air guide blocks (84) are fixedly connected to the left and right sides of the air guide plate 2 (83).

2. A recording device for tourism management according to claim 1, characterized in that: The equipment box (2) is fixedly mounted on the top of the support (1), the controller (5) is located directly behind the camera (3) and is electrically connected via wires, and another set of wires is connected to the front of the controller (5) and penetrates downward into the interior of the support (1).

3. A recording device for tourism management according to claim 1, characterized in that: The filter screen (16) is arranged in four groups and is evenly distributed between the four groups of isolation plates (15). The side surface of the filter screen (16) is fixedly connected to the isolation plate (15). A return air groove (23) is provided on the rear side of the outer surface of the alignment cylinder (7). The width of the return air groove (23) is narrower than that of the second air inlet groove (21). The front sides of the inner walls of the exhaust pipe one (17) and the exhaust pipe two (18) are fixedly connected with a water retaining block (19). The axes of the front ends of the exhaust pipe one (17) and the two groups of the exhaust pipe two (18) are tilted to point toward the lens portion of the camera (3).

4. A recording device for tourism management according to claim 3, characterized in that: The limiting ring 1 (9) and the limiting ring 2 (10) are each provided with a support groove (11) at one end facing the alignment tube (7), and a plurality of groups of balls (12) are rotatably mounted at both ends of the air inlet tube (6), and the balls (12) are adapted to rotate in the support groove (11).

5. A recording device for tourism management according to claim 4, characterized in that: The sealing strip (22) is designed to be in the shape of a long strip, the outer side of the sealing strip (22) is in sealing contact with the inner wall of the air inlet cylinder (6), and the sealing strip (22) is made of a rubber block.

6. A recording device for tourism management according to claim 5, characterized in that: The second air guide plate (83) is made of foam, and the outer side of the second air guide plate (83) is coated with glue. The plane where the connecting column (81), the first air guide plate (82) and the second air guide plate (83) are located can evenly divide the second air inlet slot (21).

7. A recording device for tourism management according to claim 7, characterized in that: The exhaust pipe one (17) is higher than the exhaust pipe two (18), and the water retaining block (19) is semicircular in shape.

8. A recording device for tourism management according to claim 7, characterized in that: The two groups of air guide blocks (84) are symmetrically distributed on the left and right sides of the second air guide plate (83), and one side of the air guide block (84) is designed to be an arc concave.

9. A recording device for tourism management according to claim 8, characterized in that: The filter screen (16) is designed to be in an arc shape, and the filter screen (16) is coaxially and concentrically distributed with the air inlet cylinder (6) and the alignment cylinder (7), and the four groups of filter screens (16) correspond to the four groups of air inlet slots 1 (20) respectively.

10. A recording device for tourism management according to claim 9, characterized in that: The diameters of the upper baffle plate (13) and the lower baffle plate (14) are equal and greater than the diameter of the filter screen (16).

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