Intelligent digital display high-speed variable speed fan

Abstract

The present invention relates to the field of fan technology, and specifically to an intelligent digital display high-speed variable speed fan, comprising a base, a handle fixedly connected to the top of the base, a digital display screen embedded in the side wall of the handle, a fan housing rotatably connected to the top of the handle, a fan rear cover fixedly connected to the side wall of the fan housing, a supply fan fixedly connected to the interior of the fan rear cover, a guide mounting ring provided on the other side of the fan housing, a wind flow regulating mechanism for guiding the wind blown out of the supply fan provided inside the guide mounting ring, the wind flow regulating mechanism comprising a fixed plate fixedly connected to the middle part of the guide mounting ring, and guide plates rotatably connected to both sides of the guide mounting ring near the fixed plate at equal distances and evenly distributed. Compared to the prior art, the present application realizes that when the fan is in use, the air outlet can provide concentrated air supply and wide-angle air supply, and the two modes can be flexibly switched.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to an intelligent digital display high-speed variable speed fan. Background Art

[0002] The intelligent digital-display high-speed variable-speed fan is a handheld fan. As a portable air movement device, its compact size, lightweight design, and ease of use anytime, anywhere make it widely used in personal cooling, outdoor activities, and other scenarios. It is an innovative fan device that integrates intelligent sensing, high energy efficiency, precise speed control, and modern interaction. It uses a brushless DC motor and supports a wide range of stepless speed regulation. It can sense environmental conditions in real time through built-in components such as temperature and humidity sensors, and automatically adjusts the wind speed based on user needs to achieve a balance between comfort and energy efficiency. It also features a high-definition digital display that clearly displays current wind speed, operating mode, and timing information.

[0003] A Chinese patent discloses: a handheld fan, patent announcement number: CN217107504U, which "includes: a handle, a wind cover, a bracket and a water supply structure. The handle is fixed to the wind cover, the bracket is arranged in the wind cover, a motor is installed at one end of the bracket, and a fan blade is connected to one end of the motor. The water supply structure is installed at the end of the bracket opposite to the motor, and a wind shell is clamped at one end of the bracket. The wind shell is sleeved on the outside of the water supply structure. A control board and a battery are installed in the handle. The control board is respectively connected to the water supply structure and the motor signal. The handle is equipped with a battery to provide power to the handheld fan."

[0004] Although the fan can spray water through the water replenishment structure when blowing air, thereby giving the fan a water replenishment function, the air outlet direction of the handheld fan is not adjustable, and the user cannot flexibly adjust the airflow direction according to needs. In scenarios where concentrated air supply is required, such as precise cooling of a certain part of the body, the fixed air outlet mode of the fan makes it difficult to achieve concentrated guidance of the airflow, resulting in poor air supply effect; and in scenarios where wide-angle air supply is required, such as providing a cooling effect for multiple people at the same time, the fixed angle of the fan is difficult to meet the demand for a wider coverage range, which limits the product's usage scenarios. Users often need to adjust the wind direction by frequently turning the main body angle of the handheld fan. This operation is not only inconvenient, but also affects the user experience of the handheld fan. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose an intelligent digital display high-speed variable speed fan to solve the problem that users cannot flexibly adjust the airflow direction according to their needs. Users often need to adjust the wind direction by frequently rotating the main body angle of the handheld fan. This operation is not only inconvenient, but also affects the user experience of the handheld fan and limits the product's usage scenarios.

[0006] Based on the above-mentioned purpose, the present invention provides an intelligent digital display high-speed variable speed fan, including a base, the top of the base is fixedly connected to a handle, the side wall of the handle is inlaid with a digital display screen, the top of the handle is rotatably connected to a fan housing, the side wall of the fan housing is fixedly connected to a fan rear cover, the interior of the fan rear cover is fixedly connected to a supply fan, and a guide mounting ring is provided on the other side of the fan housing, and a wind flow adjustment mechanism for guiding the wind blown out by the supply fan is provided inside the guide mounting ring.

[0007] Preferably, the airflow adjustment mechanism includes a fixed plate fixedly connected to the middle part of the guide mounting ring, and the guide plates equidistantly and evenly distributed are rotatably connected on both sides of the fixed plate between the inside of the guide mounting ring, the side wall of the fixed plate is fixedly connected to a fixed block, and adjustment plates are respectively provided on both sides of the fixed block, and the two ends of the adjustment plate are respectively slidably connected to the first sliding plate, the first sliding plate at one end of the adjustment plate is fixedly connected to the side wall of the fixed block, and the first sliding plate at the other end of the adjustment plate is fixedly connected to the inner wall of the guide mounting ring, and the side walls of the adjustment plate are rotatably connected to a plurality of evenly distributed second sliding plates, and one end of the second sliding plate is slidably connected to a fixed The cam is fixedly mounted on a support frame, and the cam is secured to a location on the support frame of the chassis and is adapted to engage with the guide rails of the chassis.

[0008] Preferably, the axis of the elliptical block passes through the outer wall of the installation box and is fixedly connected to the limiting circular block. The outer wall of the limiting circular block is provided with a limiting groove. The side wall of the installation box is slidably connected with a slider. One end of the slider is fixedly connected to the limiting spring. One end of the limiting spring is fixedly connected to the side wall of the installation box. The end of the slider close to the limiting circular block is fixedly connected to the limiting column.

[0009] Preferably, an adjusting knob is fixedly connected to the side wall of the limiting circular block, and a plurality of anti-slip grooves that are evenly distributed at equal distances are formed on the outer wall of the adjusting knob.

[0010] Preferably, a groove is provided at the bottom of the base, an anti-falling plate is slidably connected to the inside of the groove, and two opposing limiting suction cups are fixedly connected to the bottom of the anti-falling plate.

[0011] Preferably, both sides of the bottom of the anti-fall plate are fixedly connected with an extrusion spring, one end of the extrusion spring is fixedly connected to the bottom of the inner wall of the groove, the inner wall of the groove is slidably connected with an extrusion block, the bottom of the extrusion block contacts the top of the anti-fall plate, the side wall of the extrusion block is provided with a slope, and an extrusion rod is sliding through the interior of the base, the bottom shape of one end of the extrusion rod is arc-shaped, one end of the extrusion rod passes through the groove and contacts the slope provided in the extrusion block, the outer wall of the extrusion rod is provided with a tension spring, one end of the tension spring is fixedly connected to the outer wall of the extrusion rod, and the other end of the tension spring is fixedly connected to the inner wall of the groove.

[0012] Preferably, two groups of limit buckles are fixedly connected to one side of the guide mounting ring close to the fan housing, and two groups of limit slots are fixedly connected to the outer wall of the fan housing, and one end of the limit buckle extends into the limit slot.

[0013] Preferably, a non-slip pad is fixedly connected to the bottom of the base.

[0014] Preferably, a sweat-absorbing sleeve is fixedly connected to the outer wall of the handle.

[0015] Preferably, one end of the limiting column is arc-shaped and matches the inner wall of the limiting groove.

[0016] Beneficial effects of the present invention:

[0017] 1. The intelligent digital display high-speed variable speed fan drives the elliptical block to rotate through the adjustment knob in the airflow adjustment mechanism. The elliptical block pushes the tooth plate to rotate by meshing with the gear, and the guide plate drives the other guide plates to rotate through the adjustment plate, so that the air outlet can be used for centralized air supply and wide-angle air supply when the fan is in use, and can be flexibly switched. This solves the problem that the air outlet direction of existing handheld fans cannot be adjusted. Users cannot flexibly adjust the airflow direction according to needs, which limits the use scenarios of the product. Users often need to frequently rotate the main body angle of the handheld fan to adjust the wind direction. This operation is not convenient and affects the user experience of the handheld fan. When the user uses the fan, the air outlet can be adjusted to centralized air supply and wide-angle air supply. Centralized air supply has increased wind speed and reduced coverage area, which can achieve precise cooling. Wide-angle air supply has soft air volume and wider coverage, which is suitable for multiple people sharing or indoor air circulation. As a result, users do not need to frequently adjust the fan body angle and can quickly switch the air outlet mode. This not only improves the convenience of operation and meets the needs of multiple scenarios, but also significantly improves the functionality and user experience of the handheld fan.

[0018] 2. Intelligent digital display high-speed variable speed fan. After placing the fan as a whole on the desktop, press the extrusion rod to drive the limit suction cup to be adsorbed on the desktop. At this time, the extrusion spring will squeeze the anti-fall plate, and the anti-fall plate will drive the limit suction cup to slide upward, so that it has an upward pulling force, so that the base can be firmly fixed on the desktop. This not only avoids the situation where the external force accidentally knocks over the fan as a whole and causes damage to the internal components and the supply fan, but also prevents the fan as a whole from vibrating when running at high speed, causing the fan to be displaced due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the fan rear cover and the supply fan of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the guide installation ring of the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the adjustment plate, the fixed clamping block and the guide plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the elliptical block and the tooth plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the limiting circular block and the limiting column of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the anti-slip mat of the present invention;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the anti-falling plate and the limiting suction cup of the present invention;

[0028] Figure 9 For the present invention Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0029] The following are marked in the figure:

[0030] 1. Base; 2. Handle; 3. Digital display; 4. Fan housing; 5. Fan rear cover; 6. Supply fan; 7. Guide mounting ring; 8. Fixed plate; 9. Guide plate; 10. Fixed block; 11. Adjustment plate; 12. First sliding plate; 13. Second sliding plate; 14. Fixed clamp; 15. Mounting box; 16. Oval block; 17. Tooth plate; 18. Telescopic spring; 19. Roller; 20. Gear; 21. Limiting circle; 22. Limiting groove; 23. Slider; 24. Limiting spring; 25. Limiting column; 26. Adjusting twist; 27. Groove; 28. Anti-fall plate; 29. ​​Limiting suction cup; 30. Extrusion spring; 31. Extrusion block; 32. Extrusion rod; 33. Tension spring; 34. Limiting buckle; 35. Limiting slot; 36. Anti-slip pad; 37. Sweat-absorbing cover. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 9 As shown, the intelligent digital display high-speed variable speed fan includes a base 1, a handle 2 is fixedly connected to the top of the base 1, a battery is arranged inside the handle 2, a digital display screen 3 is inlaid on the side wall of the handle 2, the top of the handle 2 is rotatably connected to the fan casing 4, the side wall of the fan casing 4 is fixedly connected to the fan rear cover 5, the interior of the fan rear cover 5 is fixedly connected to the supply fan 6, and a guide mounting ring 7 is provided on the other side of the fan casing 4, and a wind flow regulating mechanism for guiding the wind blown out by the supply fan 6 is provided inside the guide mounting ring 7.

[0034] For further information, see the attached Figures 3 to 6As shown, the air flow regulating mechanism includes a fixed plate 8 fixedly connected to the middle part of the guide mounting ring 7, and the guide plates 9 with equal distance and uniform distribution are rotatably connected on both sides of the fixed plate 8 between the inside of the guide mounting ring 7, and the side walls of the fixed plate 8 are fixedly connected to the fixed blocks 10. Adjustment plates 11 are respectively provided on both sides of the fixed blocks 10, and the two ends of the adjustment plate 11 are respectively slidably connected to the first sliding plates 12. The first sliding plate 12 at one end of the adjustment plate 11 is fixedly connected to the side wall of the fixed block 10, and the first sliding plate 12 at the other end of the adjustment plate 11 is fixedly connected to the inner wall of the guide mounting ring 7. The side walls of the adjustment plate 11 are rotatably connected to a plurality of evenly distributed second sliding plates 13, and one end of the second sliding plate 13 is slidably connected to a fixed clamping block 14. One end of the fixed clamping block 14 is respectively fixedly connected to the side walls of the guide plate 9, and the bottom of the guide mounting ring 7 is fixedly connected to a mounting box 15. The middle part of the mounting box 15 is rotatably connected to an elliptical block 16. The inner wall of the mounting box 15 is close to the two sides of the elliptical block 16. The sides are respectively slidably connected with relatively arranged tooth plates 17, and the opposite sides of the tooth plates 17 are fixedly connected with telescopic springs 18. One end of the telescopic spring 18 is fixedly connected to the inner wall of the installation box 15. The end of the tooth plate 17 close to the roller 19 is rotatably connected with the roller 19. The outer wall of the elliptical block 16 is in contact with the outer wall of the roller 19. The shafts of the guide plates 9 on both sides of the fixed plate 8 pass through the interior of the installation box 15 and are fixedly connected with gears 20. The outer wall of the gear 20 is meshed with the side wall of the tooth plate 17. The shaft of the elliptical block 16 passes through the outer wall of the installation box 15 and is fixedly connected to the limiting circular block 21. The outer wall of the limiting circular block 21 is provided with a limiting groove 22. The side wall of the installation box 15 is slidably connected with a slider 23. One end of the slider 23 is fixedly connected to a limiting spring 24. One end of the limiting spring 24 is fixedly connected to the side wall of the installation box 15. The end of the slider 23 close to the limiting circular block 21 is fixedly connected to a limiting column 25. One end of the limiting column 25 is arc-shaped and adapts to the inner wall of the limiting groove 22.

[0035] When centralized air supply is required, the adjusting knob 26 in the airflow regulating mechanism is rotated, and the adjusting knob 26 drives the limiting circular block 21 to rotate, and the limiting circular block 21 drives the elliptical block 16 to rotate. When the elliptical block 16 rotates, the elliptical block 16 is arranged horizontally and squeezes the rollers 19 on both sides. The rollers 19 squeeze the tooth plate 17, and then the tooth plate 17 slides on the inner wall of the mounting box 15 and squeezes the telescopic spring 18. When the tooth plate 17 slides, it drives the gear 20 to rotate, and the rotation of the gear 20 synchronously drives the guide plates 9 on both sides of the fixed plate 8 to rotate. When the guide plates 9 rotate, it drives the fixed clamping block 14 to rotate. When the fixed clamping block 14 rotates, it slides in the second sliding plate 13 and pushes the adjusting knob 26 to rotate. The section plate 11 slides in the first sliding plate 12. When the adjustment plate 11 slides, it will drive the other guide plates 9 to rotate through the fixed clamping block 14. At this time, one end of the guide plates 9 on both sides of the fixed plate 8 is close to each other, and then the supply fan 6 is powered by the battery inside the handle 2 to start the supply fan 6. The supply fan 6 starts to supply air, and the wind blows toward the guide plate 9. The wind is guided by the guide plate 9, and the wind blown out has an increased wind speed, but the wind coverage area is reduced, thereby improving the local cooling efficiency. For example, air is directly supplied to the human head or neck, which is suitable for rapid cooling. When the elliptical block 16 is rotated in the opposite direction, the elliptical block 16 is in a vertical setting, and the telescopic spring 18 squeezes the tooth plate 17, and the tooth plate 17 drives the gear 20 rotates, the gear 20 drives one end of the guide plates 9 on both sides of the fixed plate 8 to move away from each other, so that the wind flow blown by the fan 6 is diffused to a larger area, the wind volume is soft, the coverage is wide, and it is suitable for multiple people to share or indoor circulating wind. The adjustment knob 26 in the wind flow adjustment mechanism drives the elliptical block 16 to rotate, and the elliptical block 16 pushes the tooth plate 17 to drive the guide plate 9 to rotate by meshing with the gear 20. The guide plate 9 drives the other guide plates 9 to rotate through the adjustment plate 11, thereby realizing that the air outlet can be used for centralized air supply and wide-angle air supply when the fan is used, and can be flexibly switched, which solves the problem that the air outlet direction of the existing handheld fan cannot be adjusted, and the user cannot flexibly adjust it according to the needs. Adjusting the direction of airflow limits the usage scenarios of the product. Users often need to adjust the wind direction by frequently turning the main body angle of the handheld fan. This operation is not convenient and also affects the user experience of the handheld fan. When the user uses the fan, the air outlet can be used for centralized air supply and wide-angle air supply. For centralized air supply, the wind speed is increased and the coverage area is reduced, which can achieve precise cooling. For wide-angle air supply, the air volume is soft and the coverage area is wider, which is suitable for sharing by multiple people or indoor air circulation. As a result, users do not need to frequently adjust the main body angle of the fan to quickly switch the air outlet mode. This not only improves the convenience of operation and meets the needs of multiple scenarios, but also significantly improves the functionality and usage experience of the handheld fan.

[0036] For further information, see the attached Figure 7 As shown, the side wall of the limiting circle 21 is fixedly connected to the adjusting knob 26, and the outer wall of the adjusting knob 26 is provided with a plurality of equidistant and evenly distributed anti-slip grooves. The anti-slip grooves increase the friction when the user manually twists the adjusting knob 26.

[0037] For further information, see the attached Figure 7 and Figure 8 As shown, a groove 27 is provided at the bottom of the base 1, and an anti-falling plate 28 is slidably connected inside the groove 27. The bottom of the anti-falling plate 28 is fixedly connected to two opposite limiting suction cups 29. Extrusion springs 30 are fixedly connected to both sides of the bottom of the anti-falling plate 28. One end of the extrusion spring 30 is fixedly connected to the bottom of the inner wall of the groove 27. An extrusion block 31 is slidably connected to the inner wall of the groove 27. The bottom of the extrusion block 31 contacts the top of the anti-falling plate 28. The side wall of the extrusion block 31 is provided with a slope. An extrusion rod 32 slides through the interior of the base 1. The bottom shape of one end of the extrusion rod 32 is arc-shaped. One end of the extrusion rod 32 penetrates into the groove 27 and contacts the slope opened by the extrusion block 31. The outer wall of the extrusion rod 32 is provided with a tension spring 33. One end of the tension spring 33 is fixedly connected to the outer wall of the extrusion rod 32, and the other end of the tension spring 33 is fixedly connected to the inner wall of the groove 27.

[0038] When the fan 1 is placed on the table, the squeezing rod 32 is pressed again, and the squeezing rod 32 is pulled and extended by the tension spring 33. Subsequently, one end of the squeezing rod 32 squeezes the squeezing block 31, which slides downward and squeezes the anti-falling plate 28, and the anti-falling plate 28 squeezes the squeezing springs 30 at both ends. At this time, the anti-falling plate 28 is squeezed, which drives the limiting suction cup 29 to squeeze downward and contact the table. Subsequently, the limiting suction cup 29 is adsorbed on the table. Then the squeezing rod 32 is released, and the tension spring 33 is contracted and pulls one end of the squeezing rod 32 away from the top of the squeezing block 31. At this time, the squeezing spring 30 releases the spring force and squeezes the anti-falling plate 28, and the anti-falling plate 28 drives the limiting suction cup 29 to have an upward pulling force, so that the base 1 can be firmly fixed on the table. This not only avoids the situation that the external force accidentally knocks over the fan as a whole and causes damage to the internal components and the supply fan 6, but also prevents the fan as a whole from vibrating when running at high speed, which causes the fan to be displaced due to vibration.

[0039] For further information, see the attached Figure 9 As shown, the guide mounting ring 7 is fixedly connected to one side close to the fan housing 4 with two sets of limit buckles 34, and the outer wall of the fan housing 4 is fixedly connected with two sets of limit slots 35. One end of the limit buckle 34 extends into the limit slot 35. The guide mounting ring 7 is fixed to the fan housing 4 through the limit buckle 34 and the limit slot 35. It is not only convenient for the clamping installation but also convenient for the subsequent disassembly and cleaning of dust attached to the fixing plate 8 and the guide plate 9.

[0040] For further information, see the attached Figure 7 As shown, a non-slip pad 36 is fixedly connected to the bottom of the base 1, and the non-slip pad 36 can prevent the base 1 from slipping when placed on a desktop.

[0041] For further information, see the attached Figure 1 As shown, the outer wall of the handle 2 is fixedly connected to a sweat-absorbing sleeve 37, which absorbs the sweat of the user's hands when holding the handle 2, preventing the fan from falling to the ground due to excessive hand sweat and slipping.

Claims

1. An intelligent digital display high-speed variable speed fan, comprising a base (1), a handle (2) fixedly connected to the top of the base (1), a digital display screen (3) inlaid on the side wall of the handle (2), a fan housing (4) rotatably connected to the top of the handle (2), a fan rear cover (5) fixedly connected to the side wall of the fan housing (4), and a supply fan (6) fixedly connected inside the fan rear cover (5), characterized in that: A guide mounting ring (7) is provided on the other side of the fan housing (4), and a wind flow regulating mechanism for guiding the wind blown out by the supply fan (6) is provided inside the guide mounting ring (7), and the wind flow regulating mechanism includes a fixed plate (8) fixedly connected to the middle part of the guide mounting ring (7), and guide plates (9) equidistantly and evenly distributed are rotatably connected on both sides of the guide mounting ring (7) near the fixed plate (8), and a fixed block (10) is fixedly connected to the side wall of the fixed plate (8), and adjustment plates (11) are respectively provided on both sides of the fixed block (10), and the two ends of the adjustment plate (11) are respectively slidably connected. A first sliding plate (12) is connected, the first sliding plate (12) at one end of the adjustment plate (11) is fixedly connected to the side wall of the fixed block (10), the first sliding plate (12) at the other end of the adjustment plate (11) is fixedly connected to the inner wall of the guide mounting ring (7), the side walls of the adjustment plate (11) are rotatably connected to a plurality of evenly distributed second sliding plates (13), one end of the second sliding plate (13) is slidably connected to a fixed clamping block (14), one end of the fixed clamping block (14) is respectively fixedly connected to the side wall of the guide plate (9), the bottom of the guide mounting ring (7) is fixedly connected to a mounting box (15), the mounting box The middle part of the (15) is rotatably connected to an elliptical block (16), and the inner wall of the installation box (15) is slidably connected to the two sides of the elliptical block (16) with relatively arranged tooth plates (17), and the opposite sides of the tooth plates (17) are fixedly connected to telescopic springs (18), and one end of the telescopic spring (18) is fixedly connected to the inner wall of the installation box (15). The end of the tooth plate (17) close to the roller (19) is rotatably connected to the roller (19), and the outer walls of the elliptical block (16) and the roller (19) are in contact. The shafts of the guide plates (9) on both sides of the fixed plate (8) are inserted into the interior of the installation box (15). A gear (20) is fixedly connected thereto, the outer wall of the gear (20) meshes with the side wall of the toothed plate (17), the shaft of the elliptical block (16) passes through the outer wall of the mounting box (15) and is fixedly connected to the limiting circular block (21), the outer wall of each limiting circular block (21) is provided with a limiting groove (22), the side wall of the mounting box (15) is slidably connected to a slider (23), one end of the slider (23) is fixedly connected to a limiting spring (24), one end of the limiting spring (24) is fixedly connected to the side wall of the mounting box (15), and one end of the slider (23) close to the limiting circular block (21) is fixedly connected to the limiting column (25).

2. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: The side wall of the limiting circular block (21) is fixedly connected to an adjusting knob (26), and the outer wall of the adjusting knob (26) is provided with a plurality of anti-slip grooves that are evenly distributed at equal distances.

3. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: A groove (27) is provided at the bottom of the base (1), an anti-fall plate (28) is slidably connected inside the groove (27), and two opposing limiting suction cups (29) are fixedly connected to the bottom of the anti-fall plate (28).

4. The intelligent digital display high-speed variable speed fan according to claim 3, characterized in that: Both sides of the bottom of the anti-fall plate (28) are fixedly connected with an extrusion spring (30), one end of the extrusion spring (30) is fixedly connected to the bottom of the inner wall of the groove (27), and the inner wall of the groove (27) is slidably connected with an extrusion block (31), the bottom of the extrusion block (31) is in contact with the top of the anti-fall plate (28), and the side wall of the extrusion block (31) is provided with a slope. An extrusion rod (32) is slidably passed through the interior of the base (1), and the bottom of one end of the extrusion rod (32) is in an arc shape. One end of the extrusion rod (32) passes through the groove (27) and contacts the slope provided by the extrusion block (31). The outer wall of the extrusion rod (32) is provided with a tension spring (33), one end of the tension spring (33) is fixedly connected to the outer wall of the extrusion rod (32), and the other end of the tension spring (33) is fixedly connected to the inner wall of the groove (27).

5. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: Two groups of limit buckles (34) are fixedly connected to one side of the guide mounting ring (7) close to the fan housing (4), and two groups of limit slots (35) are fixedly connected to the outer wall of the fan housing (4), with one end of the limit buckle (34) extending into the limit slot (35).

6. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: An anti-slip pad (36) is fixedly connected to the bottom of the base (1).

7. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: A sweat-absorbing sleeve (37) is fixedly connected to the outer wall of the handle (2).

8. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: One end of the limiting column (25) is arc-shaped and matches the inner wall of the limiting groove (22).

Images