Intelligent digital display high-speed variable-speed fan

Abstract

The invention relates to the technical field of fans, in particular to an intelligent digital display high-speed variable-speed fan which comprises a base, a grip is fixedly connected to the top of the base, a digital display screen is embedded in the side wall of the grip, a fan shell is rotationally connected to the top of the grip, a fan rear cover is fixedly connected to the side wall of the fan shell, and a blowing fan is fixedly connected into the fan rear cover. A flow guide mounting ring is arranged on the other side of the fan shell, an air flow adjusting mechanism used for guiding air blown out by the air supply fan is arranged in the flow guide mounting ring, and the air flow adjusting mechanism comprises a fixing plate fixedly connected to the middle of the flow guide mounting ring. And guide plates which are uniformly distributed at equal intervals are rotationally connected to the two sides, close to the fixed plate, in the guide mounting ring. Compared with the prior art, when the fan is used, concentrated air supply and wide-angle air supply of the air outlet can be achieved, and meanwhile 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 flow device, it is small and light and can be used anytime and anywhere. It is widely used in personal cooling, outdoor activities and other scenes. It is an innovative fan device that integrates intelligent perception, high efficiency and energy saving, 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 components such as built-in temperature and humidity sensors, and automatically adjust the wind speed according to user needs to achieve a balance between comfort and energy efficiency. It is also equipped with a high-definition digital display to clearly display the current wind speed, operating mode and timing information.

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

[0004] Although the fan can spray water through the water replenishment structure when blowing air, so that the fan has 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 use 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 only inconvenient, but also affects the use 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, a handle is fixedly connected to the top of the base, a digital display screen is inlaid on the side wall of the handle, 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 back cover, the interior of the fan back 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 regulating mechanism for guiding wind blown out by the supply fan is provided inside the guide mounting ring. Preferably, the airflow regulating mechanism includes a fixed plate fixedly connected to the middle part of the guide mounting ring, and the guide plates evenly distributed at equal intervals are rotatably connected on both sides of the fixed plate near 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 arranged on both sides of the fixed block, and the two ends of the adjustment plate are respectively slidably connected to the first sliding plates, 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 clamping block has one end fixedly connected to the side wall of the fixing plate, the bottom of the guide mounting ring is fixedly connected to a mounting box, the middle part of the mounting box is rotatably connected to an elliptical block, the inner wall of the mounting box close to the two sides of the elliptical block are slidably connected to relatively arranged toothed plates, the opposite sides of the toothed plates are fixedly connected to a telescopic spring, one end of the telescopic spring is fixedly connected to the inner wall of the mounting box, the end of the toothed plate close to the roller is rotatably connected to the roller, the outer wall of the elliptical block is in contact with the outer wall of the roller, the shaft parts of the guide plates close to the two sides of the fixing plate penetrate into the interior of the mounting box and are fixedly connected to gears, and the outer wall of the gear is meshed with the side wall of the toothed plate.

[0007] Preferably, the shaft 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 a limiting spring, one end of the limiting spring is fixedly connected to the side wall of the installation box, and the end of the slider close to the limiting circular block is fixedly connected to the limiting column.

[0008] Preferably, an adjusting knob is fixedly connected to the side wall of the limiting circular block, and a plurality of anti-slip grooves which are evenly distributed at equal distances are formed on the outer wall of the adjusting knob.

[0009] Preferably, a groove is provided at the bottom of the base, an anti-falling plate is slidably connected inside the groove, and two opposing limiting suction cups are fixedly connected to the bottom of the anti-falling plate.

[0010] Preferably, both sides of the bottom of the anti-falling 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-falling plate, the side wall of the extrusion block is provided with a slope, an extrusion rod slides through the inside of the base, the bottom shape of one end of the extrusion rod is arc-shaped, one end of the extrusion rod penetrates into the groove and contacts with the slope provided on 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.

[0011] 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.

[0012] Preferably, a non-slip pad is fixedly connected to the bottom of the base.

[0013] Preferably, a sweat-absorbing sleeve is fixedly connected to the outer wall of the handle.

[0014] Preferably, one end of the limiting column is arc-shaped and matches the inner wall of the limiting groove.

[0015] Beneficial effects of the present invention: 1. The intelligent digital display high-speed variable speed fan drives the elliptical block to rotate through the adjustment twist in the wind flow adjustment mechanism. The elliptical block pushes the tooth plate to drive the guide plate to rotate by meshing with the gear. The guide plate drives other guide plates to rotate through the adjustment plate, so that the air outlet can supply concentrated air and wide-angle air when the fan is used, and can be flexibly switched. This solves the problem that the air outlet direction of the existing handheld fan cannot be adjusted, and the user cannot flexibly adjust the airflow direction according to needs, which limits the use scenario of the product. The user often needs to adjust the wind direction by frequently rotating the main body angle of the handheld fan. This operation is not convenient and affects the use experience of the handheld fan. When the user uses the fan, the air outlet can be adjusted to concentrated air supply and wide-angle air supply. For concentrated 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 range is wider, which is suitable for multiple people sharing or indoor air circulation. As a result, the user does not need to frequently adjust the main body angle of the fan, and can quickly switch the air outlet mode, which not only improves the convenience of operation, meets the needs of multiple scenarios, but also significantly improves the functionality and use experience of the handheld fan.

[0016] 2. Intelligent digital display high-speed variable speed fan, by placing the fan as a whole on the desktop, pressing the extrusion rod to drive the limit suction cup to adsorb on the desktop, the extrusion spring will squeeze the anti-reverse plate, and the anti-reverse 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, which 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

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the fan rear cover and the supply fan of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the guide installation ring of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment plate, the fixed clamp block and the guide plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the elliptical block and the tooth plate of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting circular block and the limiting column of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the anti-slip mat of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the anti-falling plate and the limiting suction cup of the present invention; Fig. 9 For the present invention Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0019] The markings in the figure are: 1. Base; 2. Handle; 3. Digital display screen; 4. Fan housing; 5. Fan rear cover; 6. Supply fan; 7. Guide installation ring; 8. Fixed plate; 9. Guide plate; 10. Fixed block; 11. Adjustment plate; 12. First sliding plate; 13. Second sliding plate; 14. Fixed clamp block; 15. Installation box; 16. Oval block; 17. Tooth plate; 18. Telescopic spring; 19. Roller; 20. Gear; 21. Limiting round block; 22. Limiting groove; 23. Sliding block; 24. Limiting spring; 25. Limiting column; 26. Adjusting twist; 27. Groove; 28. Anti-falling 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

[0020] 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 in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be 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 described object changes, the relative positional relationship may also change accordingly.

[0022] 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, a fan casing 4 is rotatably connected to the top of the handle 2, a fan rear cover 5 is fixedly connected to the side wall of the fan casing 4, a supply fan 6 is fixedly connected to the inside of the fan rear cover 5, a guide mounting ring 7 is arranged 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 arranged inside the guide mounting ring 7.

[0023] For further information, see Attachment Figures 3 to 6As shown, the airflow regulating mechanism includes a fixed plate 8 fixedly connected to the middle part of the guide installation circle 7, and guide plates 9 equidistantly and evenly distributed are rotatably connected on both sides of the fixed plate 8 between the inside of the guide installation circle 7, and the side walls of the fixed plate 8 are fixedly connected with a fixed block 10, and adjustment plates 11 are respectively arranged on both sides of the fixed block 10, and the two ends of the adjustment plate 11 are respectively slidably connected with the first sliding plate 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 installation circle 7, and the side walls of the adjustment plate 11 are rotatably connected with a plurality of evenly distributed second sliding plates 13, and one end of the second sliding plate 13 is slidably connected with a fixed clamping block 14, and one end of the fixed clamping block 14 is respectively fixedly connected to the side walls of the fixed plate 8, and the bottom of the guide installation circle 7 is fixedly connected with a mounting box 15, and the middle part of the mounting box 15 is rotatably connected with an elliptical block 16, and 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 springs 18 is fixedly connected to the inner wall of the installation box 15, and the ends of the tooth plates 17 close to the rollers 19 are rotatably connected with the rollers 19, and the outer walls of the elliptical blocks 16 and the rollers 19 are in contact, and the shafts of the guide plates 9 on both sides of the fixed plate 8 are penetrated into the interior of the installation box 15 and are fixedly connected with gears 20, and the outer walls of the gears 20 are meshed with the side walls of the tooth plates 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. One 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 matches the inner wall of the limiting groove 22. 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 round block 21 to rotate, and the limiting round block 21 drives the elliptical block 16 to rotate. When the elliptical block 16 rotates, the elliptical block 16 is horizontally arranged and squeezes the rollers 19 on both sides, and the rollers 19 squeeze the toothed plate 17. Then the toothed plate 17 slides on the inner wall of the mounting box 15 and squeezes the telescopic spring 18. When the toothed plate 17 slides, it drives the gear 20 to rotate. 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, they drive 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 to 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, which improves the local cooling efficiency. For example, air is directly supplied to the head or neck of the human body, 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 drives the tooth plate 17 to rotate by meshing with the gear 20, and the guide plate 9 drives the other guide plates 9 to rotate through the adjustment plate 11, so that when the fan is used, the air outlet can be used for centralized air supply and wide-angle air supply, 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 the air outlet direction according to the needs. Adjusting the direction of airflow limits the usage scenarios of the product. Users often need to frequently adjust the wind direction by 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. When the user uses the fan, the air outlet can be centralized air supply or 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 wind volume is gentle and the coverage area is wider, which is suitable for sharing by multiple people or indoor air circulation. As a result, users can quickly switch the air outlet mode without frequently adjusting the fan body angle. 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.

[0024] For further information, see Attachment Figure 7 As shown, the side wall of the limiting circular block 21 is fixedly connected with an adjusting knob 26 , and the outer wall of the adjusting knob 26 is provided with a plurality of equidistant and evenly distributed anti-skid grooves, which increase the friction when the user manually twists the adjusting knob 26 .

[0025] For further information, see Attachment 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, and limiting suction cups 29 opposite to each other are fixedly connected to the bottom of the anti-falling plate 28, and extrusion springs 30 are fixedly connected to both sides of the bottom of the anti-falling plate 28, and one end of the extrusion spring 30 is fixedly connected to the bottom of the inner wall of the groove 27, and an extrusion block 31 is slidably connected to the inner wall of the groove 27, and the bottom of the extrusion block 31 contacts the top of the anti-falling plate 28, and a slope is provided on the side wall of the extrusion block 31, and an extrusion rod 32 is slidably penetrated and slidably inside the base 1, and the bottom shape of one end of the extrusion rod 32 is arc-shaped, and one end of the extrusion rod 32 penetrates into the groove 27 and contacts the slope provided by the extrusion block 31, and the outer wall of the extrusion rod 32 is provided with a tension spring 33, and 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; 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 desktop, which not only avoids the situation that the external force accidentally knocks over the fan as a whole and causes the internal components and the supply fan 6 to be damaged, but also prevents the fan as a whole from vibrating when running at high speed, causing the fan to be displaced due to vibration.

[0026] For further information, see Attachment Fig. 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 to 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 by engaging with the limit buckle 34 and the limit slot 35, which is not only convenient for the engagement installation but also convenient for the subsequent disassembly and cleaning of the dust attached to the fixing plate 8 and the guide plate 9.

[0027] For further information, see Attachment 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 achieve a non-slip effect when the base 1 is placed on a desktop.

[0028] For further information, see Attachment Figure 1 As shown, the outer wall of the handle 2 is fixedly connected with a sweat-absorbing sleeve 37, which absorbs the sweat of the user when holding the handle 2, thereby preventing the fan from falling to the ground due to excessive hand sweat and slipping.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0030] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

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 flow guide mounting ring (7) is provided on the other side of the fan housing (4), and a wind flow regulating mechanism for guiding wind blown out by the supply fan (6) is provided inside the flow guide mounting ring (7).

2. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: The wind flow regulating mechanism comprises a fixed plate (8) fixedly connected to the middle part of the guide installation ring (7); guide plates (9) evenly distributed at equal intervals are rotatably connected on both sides of the guide installation ring (7) near the fixed plate (8); a fixed block (10) is fixedly connected to the side wall of the fixed plate (8); adjustment plates (11) are respectively arranged on both sides of the fixed block (10); first sliding plates (12) are slidably connected to the two ends of the adjustment plate (11); 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 installation 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); the fixed clamping block One end of each of the guide plates (14) is fixedly connected to the side wall of the fixed plate (8); the bottom of the guide mounting ring (7) is fixedly connected to a mounting box (15); an elliptical block (16) is rotatably connected to the middle part of the mounting box (15); oppositely arranged toothed plates (17) are slidably connected to the inner wall of the mounting box (15) on both sides of the elliptical block (16); a telescopic spring (18) is fixedly connected to the opposite side of the toothed plate (17); one end of the telescopic spring (18) is fixedly connected to the inner wall of the mounting box (15); one end of each of the toothed plates (17) close to the roller (19) is rotatably connected to the roller (19); the outer walls of the elliptical block (16) and the roller (19) are in contact; the shafts of the guide plates (9) close to both sides of the fixed plate (8) penetrate into the interior of the mounting box (15) and are fixedly connected to gears (20); the outer wall of the gear (20) is meshed with the side wall of the toothed plate (17).

3. The intelligent digital display high-speed variable speed fan according to claim 2 is characterized in that: 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 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 installation box (15); and one end of the slider (23) close to the limiting circular block (21) is fixedly connected to a limiting column (25).

4. The intelligent digital display high-speed variable speed fan according to claim 3 is 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.

5. The intelligent digital display high-speed variable speed fan according to claim 1, characterized in that: The bottom of the base (1) is provided with a groove (27), the interior of the groove (27) is slidably connected to an anti-falling plate (28), and the bottom of the anti-falling plate (28) is fixedly connected to two opposing limiting suction cups (29).

6. The intelligent digital display high-speed variable speed fan according to claim 5, characterized in that: Both sides of the bottom of the anti-falling 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), 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-falling plate (28), the side wall of the extrusion block (31) is provided with a slope, an extrusion rod (32) is slidably penetrated inside the base (1), the bottom 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 provided on the extrusion block (31), the outer wall of the extrusion rod (32) is sleeved 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).

7. 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).

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

9. 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).

10. The intelligent digital display high-speed variable speed fan according to claim 3, characterized in that: One end of the limiting column (25) is arc-shaped and matches the inner wall of the limiting groove (22).

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