Windmill

Abstract

The utility model relates to the technical field of gardens tools, provide a kind of wind power tool, including fan body, air pipe part and wind nozzle part.Fan body is equipped with the first interface for airflow, air pipe part both ends are equipped with second interface and third interface, and wind nozzle part both ends are equipped with fourth interface and wind nozzle;The first interface can be respectively connected second interface or fourth interface, and third interface can be respectively connected second interface or fourth interface, to realize the compatible interconnection between fan, air pipe and wind nozzle.Through the interface configuration described above, fan direct connection wind nozzle, fan-air pipe-wind nozzle or multiple air pipe series connection and other various assembly modes can be realized, which is convenient for quickly adjusting the air outlet position and total length to adapt to different height, posture and operation scene, and the nozzle is close to the target to improve the local wind speed and directivity.The structure has the advantages of modularity, strong interchangeability, easy maintenance and storage, and can improve the efficiency and applicability of blowing, drying or dust removal operations.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, and in particular to a wind-powered tool. Background Technology

[0002] Wind-powered tools (such as axial-flow hair dryers) are used not only in home gardens, streets, and parks, but also widely in commercial and municipal sectors. Their main function is to use powerful airflow to blow up and remove fallen leaves, trash, and other debris.

[0003] Current handheld axial hair dryers mostly use fixed-length blowpipes and simple snap-on nozzle designs, which fail to adapt to users' height, gender differences, and diverse usage scenarios (such as inside and outside cars, narrow spaces, etc.), resulting in limited drying efficiency and user comfort. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, this utility model provides a wind-powered tool to improve its applicability.

[0005] To solve the above-mentioned technical problems, this utility model provides a wind-powered tool, comprising:

[0006] The fan body is provided with a first interface for airflow to pass through;

[0007] The air duct section is provided with a second interface and a third interface at both ends;

[0008] The nozzle section has a fourth interface and a nozzle at each end;

[0009] The first interface is configured to detachably connect the second interface and the fourth interface, and the third interface is configured to detachably connect the fourth interface and the second interface of another duct section.

[0010] In one embodiment of this utility model, the first interface and the third interface have the same structure, and the second interface and the fourth interface have the same structure.

[0011] In one embodiment of the present invention, the nozzle portion is provided with multiple nozzles, and the nozzles of the multiple nozzle portions have different shapes.

[0012] In one embodiment of the present invention, the nozzle includes a circular airflow hole, the inner diameter of which is smaller than the inner diameter of the fourth interface.

[0013] In one embodiment of the present invention, the nozzle includes a strip-shaped airflow hole, the length of which is greater than the diameter of the fourth interface, and the width of which is less than the diameter of the fourth interface.

[0014] In one embodiment of this utility model, multiple air duct sections are provided, and the multiple air duct sections have the same length or different lengths.

[0015] In one embodiment of the present invention, a button portion is provided on the first interface or the second interface, and the button portion is assembled to lock or release the connection between the first interface or the second interface.

[0016] In one embodiment of the present invention, the first interface is provided with a boss portion, the second interface is provided with a limiting groove for accommodating the boss portion, and the button portion is disposed outside the limiting groove.

[0017] In one embodiment of the present invention, the button portion is hinged to the second interface via a hinge shaft. The button portion is provided with a pressing portion on the side of the hinge shaft away from the boss portion, and a locking tongue portion is provided on the side of the hinge shaft near the boss portion. The locking tongue portion is used to form an axial limit with the boss portion, and the pressing portion is used to drive the locking tongue portion to disengage from the boss portion.

[0018] In one embodiment of the present invention, the button portion includes a reset spring, which is disposed on the inner side of the pressing portion.

[0019] The beneficial effects of this utility model are as follows: By setting interchangeable interfaces in the fan body, duct section and nozzle section, this utility model realizes modularity and multiple assembly methods (such as direct connection between fan and nozzle, fan-duct-nozzle or series connection of multiple duct sections, etc.), thereby allowing for quick adjustment of the blowing pipe length to adapt to different heights, postures and working scenarios, and making it easier to bring the nozzle as close as possible to the target to improve local wind speed and directionality, thereby enhancing the cleaning / drying effect. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0021] In the attached diagram:

[0022] Figure 1 This is a disassembly diagram of the blower body and air duct of the wind-powered tool provided in one embodiment of the present utility model, with a round air nozzle adapter.

[0023] Figure 2 This is a schematic diagram of the fan body and air duct of a wind-powered tool provided in one embodiment of the present utility model, with a circular nozzle adapted to the structure.

[0024] Figure 3 This is a disassembly diagram of the blower body and air duct of the wind-powered tool provided in one embodiment of the present utility model, with a flat nozzle adapter.

[0025] Figure 4 This is a schematic diagram of the fan body and air duct of the wind-powered tool provided in one embodiment of the present utility model, with a flat nozzle adapted to the structure.

[0026] Figure 5 This is a schematic diagram of the structure of the wind power tool provided in one embodiment of the present invention, showing the wind turbine body and the round nozzle being adapted together.

[0027] Figure 6 This is a disassembly diagram of the wind turbine body and the round nozzle of the wind-powered tool provided in one embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of the wind power tool provided in one embodiment of the present invention, showing the wind turbine body and the flat nozzle being adapted together.

[0029] Figure 8 This is a disassembly diagram of the wind turbine body and the flat nozzle of the wind-powered tool provided in one embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the air duct and first interface adaptation of a wind-powered tool provided in one embodiment of the present invention.

[0031] Figure 10 yes Figure 9 Sectional view of plane AA;

[0032] Figure 11 yes Figure 10 Enlarged view of part B.

[0033] The attached figures are labeled as follows:

[0034] 10. Fan body; 11. First interface; 12. Boss; 20. Air duct; 21. Second interface; 22. Third interface; 23. Limiting groove; 30. Nozzle; 31. Fourth interface; 32. Nozzle; 40. Button; 41. Hinge shaft; 42. Pressing part; 43. Locking tongue; 50. Return spring. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0038] Most commercially available handheld axial flow hair dryers use a fixed-length hose and a single type of nozzle. The nozzle is typically attached to the outside of the hose via an external clip, or inserted directly into the hose. Both methods are relatively simple in structure and prioritize ease of assembly, but most are designed with fixed dimensions and shapes. The overall length of the machine is often set based on the average height of a standard human or standardized ergonomic parameters to meet the needs of general standing postures for cleaning floors or large areas.

[0039] However, users vary significantly in height, gender, arm length, and grip habits, making it difficult to balance comfort and operational efficiency for all users with a fixed length. Furthermore, practical use involves various postures such as standing, crouching, operating inside a vehicle, or in confined spaces, resulting in poor adaptability of the fixed structure. The airflow velocity and volume at the axial flow outlet decrease towards the outlet; theoretically, the closer the nozzle is to the object being blown, the greater the local airflow velocity and dynamic pressure, leading to more noticeable cleaning or drying effects. The fixed length prevents the nozzle from reaching the target surface in many scenarios, reducing blowing efficiency. Axial flow hair dryers have a wide range of applications, including not only ground cleaning and general outdoor blowing, but also cleaning in confined or winding spaces such as inside and outside cars, equipment gaps, pipes, and furniture crevices. Existing handheld axial flow hair dryers with fixed nozzles and single nozzles cannot meet the blowing needs of these diverse and constrained spaces.

[0040] Based on the shortcomings of the existing technology, there is a need for an axial flow hair dryer solution that can adjust the length of the blowpipe according to individual user differences and diverse usage scenarios and is compatible with various nozzle shapes, so as to improve air output efficiency, expand the scope of application, and improve user comfort.

[0041] To solve the above technical problems, such as Figure 1-11 As shown, the present invention provides a wind-powered tool (specifically, a handheld axial flow hair dryer, a handheld vacuum cleaner, etc.), including a fan body 10, a duct section 20, and a nozzle section 30.

[0042] The fan body 10 serves as the power source and structural hub for airflow, undertaking the core function of generating and stably transporting airflow. The fan body 10 is equipped with a first interface 11 for airflow to pass through.

[0043] The duct section 20 serves as a detachable intermediate section between the fan body 10 and the nozzle section 30. A second interface 21 and a third interface 22 are respectively provided at both ends of the duct section 20.

[0044] The nozzle section 30 is used for shaping or guiding airflow, and the nozzle 32 is responsible for concentrating, diffusing or directionally outputting the delivered airflow as needed to meet different operational tasks. The nozzle section 30 is provided with a fourth interface 31 and a nozzle 32 at both ends.

[0045] Among them, such as Figure 1-8 As shown, the first interface 11 is assembled to detachably connect to the second interface 21 and the fourth interface 31, respectively, and the third interface 22 is assembled to detachably connect to the second interface 21 and the fourth interface 31 of another duct section 20, respectively. That is, each interface adopts a compatible connection standard and matching form, allowing the fan, duct, and nozzle 32 to be arbitrarily combined and interchanged as needed, thus supporting various connection methods such as direct connection of the fan to the nozzle 32, fan-duct-nozzle 32, and multi-segment series connection of the duct. This interface configuration provides modularity and highly flexible assembly capabilities, enabling quick adjustment of the air outlet position and total length to adapt to different user heights, working postures, and limited spaces, facilitating the placement of the nozzle 32 closer to the target to improve local wind speed and blowing effect. The modular structure simplifies maintenance, replacement, and cleaning, facilitates storage and portability, and expands the applicability of the equipment in various scenarios such as inside and outside automobiles, equipment gaps, and large-area blowing by being compatible with various nozzle 32 forms, thereby improving overall ease of use, efficiency, and maintainability.

[0046] In one embodiment of this utility model, the first interface 11 on the fan body 10 and the third interface 22 at one end of the duct section 20 are designed to have the same structure, while the second interface 21 at the other end of the duct section 20 and the fourth interface 31 of the nozzle section 30 are designed to have the same structure. That is, only two complementary interface standards are used in the system. Through this standardized interface allocation, any module with one type of interface can be connected with any module with another type of interface, thereby supporting arbitrary plugging, reverse assembly, and multiple combination methods of modules. The above solution improves the interchangeability and assembly flexibility of modules, and users can easily realize various layouts such as direct connection of fan to nozzle 32, fan-duct-nozzle 32, or series connection of multiple duct sections.

[0047] In one embodiment of this utility model, as Figure 1-8 As shown, the nozzle section 30 is equipped with multiple nozzles 32, each with different geometric shapes and outlet characteristics, encompassing various forms such as concentrated airflow, flat airflow, slot guidance, curved guidance, diffusion, or convergence. Each nozzle 32 connects to a fan or duct via a compatible interface, facilitating quick disassembly and replacement, thereby altering the airflow cross-section, air velocity distribution, and airflow direction. This allows for precise control of airflow patterns to adapt to different work scenarios and target locations. The diverse nozzle shapes 32 enable the equipment to select the most suitable airflow method for different tasks, improving the efficiency and accuracy of cleaning, drying, or dust removal operations. In confined or winding spaces, slender or curved nozzles 32 can be used to reach the target and reduce damage to the object being blown. In large-area operations, wide, flat, or diffusion nozzles 32 can be used to increase coverage and shorten operation time.

[0048] In one embodiment of this utility model, as Figure 1 , 2 As shown in Figures 5 and 6, the nozzle 32 has a circular airflow hole at its outlet end that is smaller in diameter than the inner diameter of the fourth interface 31. This creates a constricted channel section where the airflow passes, causing the airflow to accelerate and form a concentrated jet as it passes through this smaller cross-section. This structure is equivalent to setting a throttling or nozzle-type air outlet between the interface and the nozzle 32. Using a smaller circular airflow hole significantly enhances the wind speed and impact force at the outlet, thereby improving the ability to blow away and clean dust, particles, or moisture, enhancing the penetration and directionality of the airflow, and facilitating more powerful and precise operations near the target surface. At the same time, the concentrated jet helps to deliver airflow to a farther or narrower location in narrow or deep cavity scenarios, improving task efficiency.

[0049] In one embodiment of this utility model, as Figure 3 , 4As shown in Figures 7 and 8, the nozzle 32 includes a strip-shaped airflow hole. The length of the strip-shaped airflow hole is greater than the diameter of the fourth interface 31, and the width of the strip-shaped airflow hole is smaller than the diameter of the fourth interface 31. That is, in this embodiment, the nozzle 32 is a long strip-shaped slot. The longitudinal dimension of the slot significantly exceeds the diameter of the corresponding interface, while its transverse width is smaller than the diameter, forming an air outlet cross-section with a high aspect ratio. This structure spreads the airflow from the fan or duct into a thin and wide airflow strip at the slot, and the outlet exhibits a strip-shaped distribution characteristic. The strip-shaped wide-mouth nozzle 32 can generate a uniform strip-shaped airflow over a wider area, significantly expanding the coverage area of ​​a single blow, improving the efficiency of completing large-area purging, drying, or dust removal at the same location, and reducing equipment movement or repetitive operations.

[0050] In one embodiment of this utility model, multiple duct sections 20 are provided, and the multiple duct sections 20 are of the same length. The multiple duct sections 20 maintain consistency in structure, inner diameter, and interface fit, facilitating arbitrary series connection or disassembly to form the required total length. Using duct sections 20 of the same length allows for step-by-step adjustment of the distance from the air outlet to the target, meeting the adaptation needs of different heights, postures, and work scenarios. This design also reduces the types of parts, simplifies inventory and manufacturing costs, and facilitates rapid disassembly, maintenance, cleaning, and replacement.

[0051] In one embodiment of this utility model, multiple duct sections 20 are provided, and the lengths of the multiple duct sections 20 are different. Each duct section 20 maintains compatibility in interface standards and mating methods, allowing users to select duct sections 20 of different lengths for assembly or replacement as needed. Duct sections 20 of different lengths can be used individually or combined with other modules to more flexibly match the distance between the target and the operator. Furthermore, the number of required joints can be reduced by selecting longer duct sections 20, or the total length can be finely adjusted by using shorter duct sections 20, thus providing more options in assembly methods and better flow channel continuity design.

[0052] In one embodiment of this utility model, as Figure 9-11 As shown, a button portion 40 is provided on the first interface 11 or the second interface 21 as a locking and releasing device. This button portion 40 is a spring-return push-type or press-lock structure. One end of the button portion 40 engages with the groove or through hole of the corresponding interface via a hook, limiting tongue, or pin, automatically locking when the two modules are inserted. Pressing the button portion 40 disengages the hook or tongue, thus releasing the connection. This locking button portion 40 makes modular connection both quick and reliable, effectively preventing accidental disengagement under vibration or external force, improving safety and operational stability. It also facilitates quick assembly, replacement, or maintenance without the need for additional tools, improving operational efficiency and maintenance convenience.

[0053] In one embodiment of this utility model, as Figure 11As shown, the first interface 11 has a boss 12 at its mating end, and the second interface 21 has a corresponding limiting groove 23 for accommodating the boss 12. A button 40 is located outside the limiting groove 23 and connected to a snap-fit ​​or spring mechanism within the limiting groove 23. During assembly, the boss 12 of the first interface 11 enters the limiting groove 23 of the second interface 21 along a guide for precise positioning. The boss 12 engages with the snap-fit ​​within the limiting groove 23, and the mechanism controlled by the outer button 40 locks or releases it. The button 40 is located outside the limiting groove 23, facilitating direct user operation without obstructing the guide path of the boss 12 into the limiting groove 23. (Boss 12) The limiting groove 23 provides clear mechanical stop and positioning, ensuring accurate axial and radial positioning, good coaxiality, and suppressing rotation or lateral displacement of the connecting parts. Positioning the button 40 outside the limiting groove 23 facilitates quick one-handed locking / unlocking and visual / tactile assessment of the connection status.

[0054] In one embodiment of this utility model, as Figure 11 As shown, the button part 40 is hinged to the second interface 21 via a hinge shaft 41, forming a lever mechanism that rotates around the shaft. The side of the button part 40 away from the boss part 12 is the pressing part 42, which facilitates the user to apply force. The side closer to the boss part 12 is the locking tongue part 43, which is used to lock the boss part 12 on the first interface 11 to form an axial limit after the two interfaces are inserted into place. Usually, a guide slope is provided on the meshing surface of the boss part 12 and the locking tongue part 43, or the elastic deformation of the locking tongue part 43 is used so that the boss part 12 can push the locking tongue part 43 to spring open when inserted and return to its locked position after passing through. When the pressing part 42 is pressed, the button part 40 rotates around the hinge shaft 41, causing the locking tongue part 43 to flip up, so that the locking tongue part 43 disengages from the boss part 12, thereby releasing the axial limit for separation. The button portion 40 is located outside the limiting groove 23 and is integrally formed with the locking tongue portion 43 or assembled via a few connecting parts. The structure facilitates one-handed operation, does not obstruct insertion, and the holding force and operating torque can be adjusted through geometric design, spring stiffness, and lever arm length. This hinged push-button... The locking tongue 43 structure enables quick and reliable one-handed locking and releasing, improving assembly and maintenance efficiency.

[0055] In one embodiment of this utility model, as Figure 11As shown, the button part 40 has a built-in return spring 50, which is located in the inner cavity of the pressing part 42. One end of the return spring 50 presses against or is fitted onto the inner seat or slider of the button part 40 body, and the other end cooperates with the limiting post, inner wall, or spring seat on the second interface 21 to achieve constraint. When not pressed, the return spring 50 applies a preload force to the button part 40, causing the button part 40 to return to the default position (usually the locking position where the latch part 43 is engaged) around the hinge axis 41. When the user presses the pressing part 42, the spring force overcomes the button part 40 to rotate around the hinge axis 41, causing the latch part 43 to move away from the boss part 12. After release, the spring pushes the button part 40 back to its original position, causing the latch part 43 to return to its original position. The application of the return spring 50 enables the button part 40 to automatically return to its original position and automatically restore the locked state after being pressed and released, thereby reducing the risk of accidental operation and ensuring that the connection can still be safely locked after a brief release, improving the safety and convenience of use.

[0056] In summary, this utility model, through standardized and complementary interfaces and modular design, enables arbitrary combinations and rapid interchange of fans, ducts, and various nozzles 32, thereby significantly improving the adaptability and operational efficiency of the equipment under different heights, working postures, and confined spaces. Various geometric shapes of nozzles 32 (such as constricting circular holes and elongated slots) can provide targeted high-impact concentrated jets or wide-area uniform strip airflows to meet different task requirements such as penetrating cleaning and large-area purging. The duct module can be of uniform length for step-by-step distance adjustment, simplifying production and inventory, or it can be of multiple lengths to reduce joints and optimize flow channel continuity, balancing flexibility and aerodynamic performance. (Boss 12) Limiting groove 23 and hinged pressing The locking mechanism, consisting of a locking tongue (including a return spring 50), enables quick one-handed assembly / release and automatic reset, providing clear tactile / visual feedback, ensuring coaxial positioning and sealing, reducing interface leakage, flow loss, and noise, resisting accidental disengagement due to vibration, and improving safety and reliability. The overall structure has fewer parts, is easy to injection mold and process, facilitates manufacturing, maintenance, cleaning and replacement, and is easy to store and carry. Furthermore, through reasonable material and geometric design, it balances operating force, durability, and environmental adaptability, resulting in significant improvements in ease of use, pneumatic efficiency, maintenance costs, and task adaptability.

[0057] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A wind-powered tool, characterized in that, include: The fan body is provided with a first interface for airflow to pass through; The air duct section is provided with a second interface and a third interface at both ends; The nozzle section has a fourth interface and a nozzle at each end; The first interface is configured to detachably connect the second interface and the fourth interface, and the third interface is configured to detachably connect the fourth interface and the second interface of another duct section.

2. The wind-powered tool according to claim 1, characterized in that, The first interface has the same structure as the third interface, and the second interface has the same structure as the fourth interface.

3. The wind-powered tool according to claim 1, characterized in that, The air nozzle section is provided with multiple air nozzles, and the air nozzles of the multiple air nozzle sections have different shapes.

4. The wind-powered tool according to claim 1 or 3, characterized in that, The nozzle includes a circular airflow hole, the inner diameter of which is smaller than the inner diameter of the fourth interface.

5. The wind-powered tool according to claim 1 or 3, characterized in that, The nozzle includes a strip-shaped airflow hole, the length of which is greater than the diameter of the fourth interface, and the width of which is less than the diameter of the fourth interface.

6. The wind-powered tool according to claim 1, characterized in that, The air duct section is provided in multiple ways, and the multiple air duct sections may have the same length or different lengths.

7. The wind-powered tool according to claim 2, characterized in that, A button is provided on the first interface or the second interface, and the button is configured to lock or release the connection between the first interface and the second interface.

8. The wind-powered tool according to claim 7, characterized in that, The first interface is provided with a boss, the second interface is provided with a limiting groove for accommodating the boss, and the button is provided on the outside of the limiting groove.

9. The wind-powered tool according to claim 8, characterized in that, The button part is hinged to the second interface via a hinge shaft. The button part has a pressing part on the side of the hinge shaft away from the boss part, and a locking tongue part on the side of the hinge shaft close to the boss part. The locking tongue part is used to form an axial limit with the boss part, and the pressing part is used to drive the locking tongue part to disengage from the boss part.

10. The wind-powered tool according to claim 9, characterized in that, The button portion includes a reset spring, which is disposed on the inner side of the pressing portion.

Images