Waterproof and dustproof fan suitable for outdoor activities

Abstract

The utility model belongs to the technical field of fans, particularly relates to a waterproof and dustproof fan suitable for outdoor activities, and provides the following scheme aiming at solving the problem that dust prevention can not be carried out on the interior of an existing fan used in a construction site, and meanwhile, the existing fan is inconvenient to disassemble. The waterproof and dustproof fan comprises a movable base, a shock insulation pad is fixedly installed at the top of the movable base, a supporting plate is fixedly installed at the top of the shock insulation pad, clamping covers are fixedly installed at the four corners of the top of the supporting plate, the same support is movably clamped to the two clamping covers located on the same side, and the top of the support extends to the positions above the two clamping covers. According to the dustproof fan, dust can be prevented from entering the air duct in the actual use process, the fan has a good dustproof effect in the operation process, the whole fan can be conveniently disassembled when the fan is transported, and therefore the dustproof fan has good convenience in the actual use process.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a waterproof and dustproof fan suitable for outdoor activities. Background Technology

[0002] When working outdoors, especially during outdoor construction, the work often takes place under the scorching sun or in stuffy tunnels. In these situations, electric fans are often needed to improve the working environment and increase work efficiency. However, the fans currently used for outdoor work still have the following shortcomings in actual use:

[0003] 1. On construction sites, there is often a lot of dust. When using a fan to blow air, dust is easily sucked into the fan, which can lead to a large amount of dust accumulating inside the fan and making it difficult to clean the inside of the fan later.

[0004] 2. Currently, the fans used on construction sites are often of a single-piece structure, which is inconvenient to disassemble. In addition, the fans are relatively large, which makes transportation inconvenient. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technology, such as the inability of fans used on construction sites to prevent internal dust and the inconvenience of disassembly, and to propose a waterproof and dustproof fan suitable for outdoor activities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waterproof and dustproof fan suitable for outdoor activities includes a mobile base. A shock-absorbing pad is fixedly mounted on the top of the mobile base. A support plate is fixedly mounted on the top of the shock-absorbing pad. Covers are fixedly mounted at the four corners of the top of the support plate. Two covers on the same side are movably secured to the same bracket, the top of which extends above the two covers. The waterproof and dustproof fan also includes:

[0008] Two binding mechanisms are provided, each connected to one side of its corresponding support.

[0009] The fan mechanism is placed on two supports, and both binding mechanisms are used to bind and position the fan mechanism.

[0010] The positioning mechanism is installed on the top of the pallet and is engaged with two binding mechanisms.

[0011] In one possible design, the binding mechanism includes two limiting rods symmetrically fixedly installed at the bottom of one side of the bracket. The same moving rod is slidably connected to the two limiting rods. A clamp is fixedly installed on the top of the moving rod for binding the fan mechanism. Two positioning pins are symmetrically fixedly installed on the top of the moving rod, and both positioning pins are engaged with the positioning mechanism.

[0012] In one possible design, a tension spring is sleeved on the limiting rod above the moving rod, with the top and bottom ends of the tension spring fixedly connected to the top of the limiting rod and the top of the moving rod, respectively.

[0013] In one possible design, the fan mechanism includes a duct placed on two supports, a dustproof net fixedly installed inside the duct, four limiting strips symmetrically fixedly installed at the bottom of the duct, the supports engaging with two corresponding limiting strips, a clamp for securing the duct, a dual-axis motor fixedly installed inside the duct, blades fixedly installed on one output shaft of the dual-axis motor, a mounting box fixedly installed on one side of the duct, an air inlet hole on the bottom inner wall of the mounting box, a filter screen fixedly installed inside the air inlet hole for filtering dust in the gas, a cleaning component installed on the top inner wall of the mounting box, the bottom of the cleaning component extending below the filter screen and contacting the bottom of the filter screen, and the other output shaft of the dual-axis motor extending into the mounting box and connecting to the cleaning component.

[0014] In one possible design, the cleaning assembly includes a rotating shaft rotatably connected to the inner wall of the top of the mounting box, a driven bevel gear fixedly mounted on the rotating shaft, an active bevel gear fixedly mounted on the other output shaft of the dual-shaft motor, the active bevel gear meshing with the driven bevel gear, and a scraper fixedly mounted at the bottom end of the rotating shaft below the filter screen, the scraper contacting the bottom of the filter screen.

[0015] In one possible design, the positioning mechanism includes a mounting bracket fixedly installed on the top of the tray. Insertion holes are provided on both inner walls of the mounting bracket. A pressure plate is slidably connected inside the mounting bracket. The two sides of the pressure plate extend to the two sides of the mounting bracket. The pressure plate rests on two moving rods. Four positioning holes are symmetrically provided on the pressure plate. Positioning pins pass through the corresponding positioning holes and engage with the positioning holes. Two locking components are symmetrically installed on the top of the pressure plate. The locking components pass through the corresponding insertion holes and engage with the insertion holes.

[0016] In one possible design, the locking assembly includes a limiting frame fixedly mounted on one side of the top of the pressure plate, with an insert plate slidably connected to the limiting frame, the insert plate passing through a corresponding insertion hole and locking with the insertion hole.

[0017] In one possible design, a slide rod is fixedly installed on the limiting frame, a slide plate is slidably sleeved on the slide rod, the bottom of the slide plate is fixedly connected to one side of the top of the insert plate, and a compression spring is sleeved on the slide rod, with the two ends of the compression spring fixedly connected to one side of the limiting frame and one side of the slide plate, respectively.

[0018] In this application, when assembling the fan, the fan casing can first be placed on two supports. The four limiting strips are located on both sides of the two supports, forming a staggered interlocking action, which laterally limits the fan casing. Then, pressing down on the pressure plate moves the two moving rods downwards. When the positioning pins and insertion holes are engaged, the pressure plate and moving rods maintain stable contact, preventing separation. As the moving rods move downwards, the clamps also move downwards, securing and positioning the fan casing. Finally, starting the dual-axis motor rotates the blades, allowing them to expel air from the fan casing through one side of the dust filter, creating a blowing effect. The system allows outside air to enter the mounting box through the air inlet and then be exhausted outwards through the air duct. As the air passes through the filter screen, dust in the air is filtered out, preventing dust from entering the air duct and thus achieving a dustproof effect inside the air duct. When the active bevel gear rotates with the output shaft of the dual-shaft motor, it can drive the rotating shaft to rotate under the meshing transmission action of the driven bevel gear. This drives the scraper to rotate, and when the scraper scrapes the filter screen, it can scrape off the dust attached to the bottom of the filter screen, cleaning the filter screen and ensuring that the filter screen has good ventilation.

[0019] When it is necessary to disassemble the fan, first pull out the two inserts from the corresponding holes. At this time, the tension spring under force can drive the moving rod to move upward. When the moving rod moves upward, it can drive the clamp to move upward, releasing the clamp on the fan tube. Then the fan tube can be moved out of the two brackets. Next, the two brackets can be pulled out from the corresponding clips. This completes the disassembly of the fan, so it provides good convenience during transportation. Beneficial effects

[0020] In this utility model, a waterproof and dustproof fan suitable for outdoor activities is provided. Through a binding mechanism, after the fan mechanism is placed on the bracket, the operating positioning mechanism drives the moving rod to move downward, which in turn drives the clamp to move downward and bind the fan mechanism. This allows the fan mechanism to be positioned during installation.

[0021] In this utility model, a waterproof and dustproof fan suitable for outdoor activities is provided. Through the fan mechanism, when the fan tube is placed on two supports, four limiting strips are set on both sides of the two supports to form a staggered interlock, which can limit the lateral movement of the fan tube. After the fan tube is tied with a clamp, it can be positioned. Then, by starting the dual-axis motor, the blades can be driven to rotate. At this time, the blades can discharge the gas in the fan tube from one side of the dustproof net, forming a blowing effect. The outside gas can enter the mounting box through the air inlet and then be discharged outward through the fan tube. When the gas passes through the filter screen, the filter screen can filter the dust in the gas, thereby preventing dust from entering the fan tube and achieving a dustproof effect inside the fan tube.

[0022] In this utility model, a waterproof and dustproof fan suitable for outdoor activities, through a positioning mechanism, can drive two moving rods to move downward when the pressure plate is pressed down. When the positioning pin is engaged with the insertion hole, the pressure plate and the moving rods can be stably contacted without separation. After the fan tube is clamped, the two engaging components will correspond to the corresponding insertion hole positions. Then, the engaging components can be engaged with the corresponding insertion hole to brake and limit the pressure plate, thereby maintaining a stable installation of the fan tube.

[0023] This invention can prevent dust from entering the fan duct during actual use, thus providing a good dustproof effect during fan operation. Furthermore, it allows for easy disassembly of the entire fan during transportation, making it convenient for practical use. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a waterproof and dustproof fan suitable for outdoor activities proposed in this utility model;

[0025] Figure 2 This is a three-dimensional schematic diagram of the bracket and clamp connection structure of a waterproof and dustproof fan suitable for outdoor activities proposed in this utility model;

[0026] Figure 3 A three-dimensional schematic diagram of the mounting bracket and pressure plate connection structure of a waterproof and dustproof fan suitable for outdoor activities proposed in this utility model;

[0027] Figure 4 This utility model presents a three-dimensional schematic diagram of the connection structure of a waterproof and dustproof fan suitable for outdoor activities, including the fan casing, mounting box, filter screen, and scraper.

[0028] Figure 5 This is a three-dimensional cross-sectional schematic diagram of the fan casing structure of a waterproof and dustproof fan suitable for outdoor activities proposed in this utility model.

[0029] In the diagram: 1. Movable base; 2. Vibration isolation pad; 3. Support plate; 4. Cover; 5. Bracket; 6. Limiting rod; 7. Moving rod; 8. Tension spring; 9. Clamp; 10. Positioning pin; 11. Mounting bracket; 12. Pressure plate; 13. Limiting bracket; 14. Insert plate; 15. Slide rod; 16. Slide plate; 17. Compression spring; 18. Air duct; 19. Mounting box; 20. Dustproof net; 21. Limiting strip; 22. Filter screen; 23. Dual-axis motor; 24. Blade; 25. Rotating shaft; 26. Scraper; 27. Driven bevel gear; 28. Driven bevel gear. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0031] Reference Figure 1-5 A fan includes a movable base 1. A vibration damping pad 2 is securely mounted on the top of the movable base 1 to reduce the impact of vibration on the fan. A support plate 3 is fixedly mounted on the top of the vibration damping pad 2, supporting the main components of the fan. At the four corners of the top of the support plate 3, clips 4 are fixedly mounted for securing brackets 5. Specifically, a bracket 5 is movably mounted on two clips 4 on the same side, with the top of the bracket 5 extending above the two clips 4. This design allows the bracket 5 to be securely mounted on the support plate 3.

[0032] To achieve waterproof and dustproof functionality for the fan, and to facilitate its installation and securing, we designed the following mechanism:

[0033] First, two binding mechanisms are connected to one side of the corresponding bracket 5. Each binding mechanism consists of two symmetrically fixed limiting rods 6 fixedly installed at the bottom of one side of the bracket 5, and a common moving rod 7 is slidably connected to these two limiting rods 6. A clamp 9 is fixedly installed on the top of the moving rod 7, which is used to bind and fix the fan mechanism. To ensure that the moving rod 7 can move stably, a tension spring 8 is fitted on the limiting rod 6, and the top and bottom ends of the tension spring 8 are firmly connected to the top of the limiting rod 6 and the top of the moving rod 7, respectively. In this way, under the upward pulling force of the tension spring 8, the moving rod 7 and the clamp 9 can be elastically supported, which facilitates the installation and disassembly of the fan.

[0034] The fan mechanism is designed to be placed on two supports 5 and consists of a fan duct 18, a dust filter 20, a dual-shaft motor 23, and blades 24. A dust filter 20 is fixedly installed inside the fan duct 18 to prevent dust from entering the fan. Four limiting strips 21 are symmetrically fixedly installed at the bottom of the fan duct 18; these limiting strips 21 engage with the supports 5 to achieve lateral limiting of the fan duct 18. Blades 24 are fixedly installed on one output shaft of the dual-shaft motor 23 to generate airflow. A mounting box 19 is also fixedly installed on one side of the fan duct 18. An air inlet is formed on the bottom inner wall of the mounting box 19, and a filter 22 is fixedly installed inside the air inlet to filter the air entering the fan.

[0035] To ensure the fan mechanism is securely fixed to the bracket 5, a positioning mechanism was designed. This mechanism is installed on the top of the support plate 3 and engages with the two binding mechanisms. Specifically, two positioning pins 10 are symmetrically fixed to the top of the moving rod 7. These two positioning pins 10 can engage with the positioning mechanism, thereby securing the binding mechanism.

[0036] In addition, a cleaning assembly was designed for cleaning the filter screen 22. The cleaning assembly includes a rotating shaft 25 rotatably connected to the inner top wall of the mounting box 19, with a driven bevel gear 28 fixedly mounted on the shaft 25. A driving bevel gear 27 is fixedly mounted on the output shaft of the dual-axis motor 23 on the other side, meshing with the driven bevel gear 28. The bottom end of the rotating shaft 25 extends to the underside of the filter screen 22 and a scraper 26 is fixedly mounted thereon, contacting the bottom of the filter screen 22. When the dual-axis motor 23 operates, the driving bevel gear 27 drives the driven bevel gear 28 to rotate, which in turn drives the rotating shaft 25 and the scraper 26 to rotate. During rotation, the scraper 26 scrapes against the filter screen 22, removing dust adhering to the bottom of the filter screen 22, thus cleaning the filter screen 22.

[0037] In use, the fan mechanism is first placed on the two supports 5, and the four limiting strips 21 are engaged with the supports 5. Then, the positioning mechanism is operated to move the moving rod 7 downward, which in turn moves the clamp 9 downward to secure and position the fan mechanism. After that, the dual-shaft motor 23 is started. The output shaft of the dual-shaft motor 23 drives the blades 24 to rotate and generate wind. At the same time, the output shaft on the other side drives the rotating shaft 25 and the scraper 26 to rotate through the meshing of the driving bevel gear 27 and the driven bevel gear 28, cleaning the filter screen 22. In this way, the fan can provide stable wind power for outdoor activities and has good waterproof and dustproof effects.

[0038] This application can be used in the field of fan technology, or in other fields applicable to this application. Example

[0039] refer to Figure 3 An improvement upon Embodiment 1: A waterproof and dustproof fan suitable for outdoor activities, applied in the field of fan technology. In the fan's structure, the positioning mechanism plays a crucial role, ensuring the fan mechanism can be stably mounted on the bracket. The positioning mechanism mainly consists of a mounting bracket 11, a pressure plate 12, and a clamping assembly.

[0040] First, the mounting bracket 11 is securely fixed to the top of the tray 3. Insertion holes are provided on the inner walls of both sides of the mounting bracket 11; these holes are used to engage with the clamping assembly to limit the position of the pressure plate 12. The pressure plate 12 is designed to slide within the mounting bracket 11, extending to both sides of the mounting bracket 11 and resting on the two moving rods 7. Four symmetrical positioning holes are provided on the pressure plate 12; these positioning holes are used to engage with the positioning pins 10 on the moving rods 7, thereby limiting the position of the moving rods 7.

[0041] When installing the fan mechanism, we first place the fan casing 18 on the two brackets 5 and engage the four limiting strips 21 with the brackets 5. Then, we press the pressure plate 12 downwards, causing it to move the two moving rods 7 downwards. During this process, the positioning pins 10 will pass through the corresponding positioning holes and engage with them, thus ensuring stable contact between the pressure plate 12 and the moving rods 7 and preventing separation.

[0042] When the pressure plate 12 is pressed down to a certain position, the two locking components will align with the corresponding insertion holes. At this time, we can engage the locking components with the corresponding insertion holes to achieve braking and limiting of the pressure plate 12. In this way, the air duct 18 is stably installed on the bracket 5.

[0043] The mounting assembly mainly consists of a limiting frame 13 and an insert plate 14. The limiting frame 13 is fixedly mounted on the top side of the pressure plate 12, while the insert plate 14 can slide on the limiting frame 13. When it is necessary to limit the pressure plate 12, the insert plate 14 can be moved to correspond to the position of the insertion hole and inserted into the insertion hole. In this way, the pressure plate 12 is stably limited within the mounting bracket 11.

[0044] To further improve the convenience of mounting the components, a slide bar 15 is fixedly installed on the limiting frame 13, and a slide plate 16 is slidably mounted on the slide bar 15. The bottom of the slide plate 16 is fixedly connected to one side of the top of the insert plate 14, so that when the slide plate 16 slides on the slide bar 15, it can drive the insert plate 14 to move. In addition, a compression spring 17 is mounted on the slide bar 15, and the two ends of the compression spring 17 are fixedly connected to one side of the limiting frame 13 and one side of the slide plate 16, respectively.

[0045] When it is necessary to move the insert plate 14 to correspond to the position of the socket, we can first move the slide plate 16 to compress the compression spring 17. Then, when we move the slide plate 16 to a certain position, the compressed spring 17, under stress, will push the slide plate 16 to move in the opposite direction, thereby driving the insert plate 14 to move. In this way, the insert plate 14 can automatically engage with the socket, further improving the convenience of installation.

[0046] However, as is well known to those skilled in the art, the working principle and wiring method of the dual-axis motor 23 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

Claims

1. A waterproof and dustproof fan suitable for outdoor activities, comprising a mobile base (1), a shock isolation pad (2) is fixedly installed on the top of the mobile base (1), a supporting plate (3) is fixedly installed on the top of the shock isolation pad (2), a clamping cover (4) is fixedly installed on the top of the supporting plate (3) at four corner positions, a same bracket (5) is movably clamped on two clamping covers (4) located on the same side, and the top of the bracket (5) extends above the two clamping covers (4), characterized in that, The waterproof and dustproof fan further comprises: Two binding mechanisms, each of which is connected to one side of a corresponding support (5); A fan mechanism placed on the two supports (5), and the two binding mechanisms are used for binding and positioning the fan mechanism; A positioning mechanism installed on the top of the supporting plate (3) and clamped with the two binding mechanisms.

2. A dust and water resistant fan suitable for outdoor activities as claimed in claim 1 wherein, The binding mechanism comprises two limiting rods (6) symmetrically and fixedly installed at the bottom of one side of the support (5), one moving rod (7) slidably connected to the two limiting rods (6), a clamp (9) fixedly installed at the top of the moving rod (7) and used for binding the fan mechanism, and two positioning pins (10) symmetrically and fixedly installed at the top end of the moving rod (7) and clamped with the positioning mechanism.

3. A dust and water resistant fan suitable for outdoor activities as claimed in claim 2, wherein, A stretch spring (8) sleeved on the limiting rod (6) above the moving rod (7), and the top end and the bottom end of the stretch spring (8) are fixedly connected with the top end of the limiting rod (6) and the top of the moving rod (7), respectively.

4. A dust and water resistant fan suitable for outdoor activities as claimed in claim 3, wherein, The fan mechanism comprises a wind cylinder (18) placed on the two supports (5), a dust screen (20) fixedly installed in the wind cylinder (18), four limiting strips (21) symmetrically and fixedly installed at the bottom of the wind cylinder (18), the support (5) clamped with the corresponding two limiting strips (21), the clamp (9) used for binding the wind cylinder (18), a double-shaft motor (23) fixedly installed in the wind cylinder (18), a blade (24) fixedly installed on one side output shaft of the double-shaft motor (23), an installation box (19) fixedly installed on one side of the wind cylinder (18), an air inlet hole formed in the bottom inner wall of the installation box (19), a filter screen (22) fixedly installed in the air inlet hole and used for filtering dust in gas, a cleaning assembly installed on the top inner wall of the installation box (19) and extending below the filter screen (22), the cleaning assembly in contact with the bottom of the filter screen (22), and the other side output shaft of the double-shaft motor (23) extending into the installation box (19) and connected with the cleaning assembly.

5. A dust and water resistant fan suitable for outdoor activities as claimed in claim 4 wherein, The cleaning assembly comprises a rotating shaft (25) rotationally connected to the top inner wall of the installation box (19), a driven bevel gear (28) fixedly sleeved on the rotating shaft (25), a driving bevel gear (27) fixedly installed on the other side output shaft of the double-shaft motor (23) and engaged with the driven bevel gear (28), and a scraper (26) fixedly installed at the bottom end of the rotating shaft (25) and extending below the filter screen (22), the scraper (26) in contact with the bottom of the filter screen (22).

6. A dust and water resistant fan suitable for outdoor activities as claimed in claim 5 wherein, The positioning mechanism comprises a mounting frame (11) fixedly mounted on the top of the supporting plate (3), a plug hole is formed in the inner wall of each side of the mounting frame (11), a pressing plate (12) is slidably connected in the mounting frame (11), the two sides of the pressing plate (12) extend to the two sides of the mounting frame (11) respectively, the pressing plate (12) is arranged on the two moving rods (7) respectively, four positioning holes are symmetrically formed in the pressing plate (12), a positioning pin (10) penetrates through the corresponding positioning hole and is clamped with the positioning hole, two clamping assemblies are symmetrically mounted on the top of the pressing plate (12), the clamping assembly penetrates through the corresponding plug hole and is clamped with the plug hole.

7. A dust and water resistant fan suitable for outdoor activities as claimed in claim 6, wherein The clamping assembly comprises a limiting frame (13) fixedly mounted on one side of the top of the pressing plate (12), a plug plate (14) is slidably connected on the limiting frame (13), the plug plate (14) penetrates through the corresponding plug hole and is clamped with the plug hole.

8. A dust and water resistant fan suitable for outdoor activities as claimed in claim 7, wherein, A sliding rod (15) is fixedly mounted on the limiting frame (13), a sliding plate (16) is slidably sleeved on the sliding rod (15), the bottom of the sliding plate (16) is fixedly connected with one side of the top of the plug plate (14), a compression spring (17) is sleeved on the sliding rod (15), and the two ends of the compression spring (17) are fixedly connected with one side of the limiting frame (13) and one side of the sliding plate (16).

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