Axial flow blower and vacuum machine with rotatable direction

Abstract

The present invention provides a dual-purpose axial-flow blower-suction machine with a rotatable direction, comprising a main body shell, and an airflow driving device arranged inside the main body shell, one end of the main body shell is set as a suction transition joint, and the other end is set as a blowing part, and also comprises a handle connected to the main body shell, and the handle is provided with a switch for controlling the start and stop of blowing and suction, and a rotating structure is provided between the main body shell and the handle, and the rotating structure is provided with a rotating locking structure, and when the rotating locking structure is pressed, the main body shell can be rotated, the suction transition joint is directed to the front, and the axial-flow blower-suction machine is set to a dust suction mode; the main body shell is rotated, the blowing part is directed to the front, and the axial-flow blower-suction machine is set to a blowing mode. By rotating the direction of the main body shell, the two functions of dust suction and blowing are realized, the control circuit is simplified, and ergonomic design is met.

Description

Technical Field

[0001] The invention relates to a dual-purpose axial flow blowing and sucking machine capable of rotating in different directions, belonging to the field of electric tools. Background Art

[0002] The blower has two uses. It can be used as a blower to clean up fallen leaves and dust in outdoor environments such as courtyards and roads. At the same time, after installing the filter and dust box, it can be used as a small vacuum cleaner to clean up dust and garbage in indoor environments.

[0003] The existing blower-suction machines on the market are mainly centrifugal fans. The directions of the air intake and outlet are crossed at 90 degrees. The two working states of vacuuming and blowing can only be guaranteed in one state. The direction of the handle is convenient for the operator to grasp. Similarly, for axial-flow blower-suction machines, the airflow direction is a straight line. Although both vacuuming and blowing can be used, the handle design can only facilitate the use of one mode. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to provide a dual-purpose axial-flow blower-suction machine with a rotatable direction. By rotating the direction of the main casing, two working modes, dust suction and air blowing, can be realized without changing the rotation direction of the fan blades, thereby simplifying the control circuit. In both working modes, the ergonomic design of the handle can be met, thereby maximizing the convenience of using the dual-purpose axial-flow blower-suction machine.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A dual-purpose axial-flow blower-suction machine with rotatable direction comprises a main body shell, and an airflow driving device arranged inside the main body shell, one end of the main body shell is arranged as a suction transition joint, and the other end is arranged as a blowing part, a dust box detachably connected to the suction transition joint and a suction part detachably connected to the suction transition joint, a blowing elbow detachably connected to the blowing part, the suction transition joint is selectively connected to the dust box or the suction part, a detachable dust filter is arranged inside the dust box, and also comprises a handle connected to the main body shell, a battery mounting seat for installing a battery pack is arranged at the bottom of the handle, a switch for controlling the start and stop of blowing and suction is arranged on the handle, and a rotating The rotating structure realizes the rotation between the main body shell and the handle, and the rotating structure is provided with a rotating locking structure to lock the circumferential position between the main body shell and the handle; when the rotating locking structure is pressed, the main body shell can be rotated, the suction transition joint is directed toward the front, the blowing part is directed toward the rear, the suction transition joint is installed with the dust box, the blowing part is installed with the blowing elbow, and the axial flow blower-suction machine is set to the dust suction mode; when the rotating locking structure is pressed, the main body shell can be rotated, the blowing part is directed toward the front, the suction transition joint is directed toward the rear, the suction transition joint is installed with the suction part, and the axial flow blower-suction machine is set to the blowing mode.

[0007] In one embodiment, the rotating structure includes a handle top plate arranged on the top of the handle and a casing bottom plate at the bottom of the main body casing; a rotating shaft is arranged at the center of the handle top plate, a shoulder is arranged at the end of the rotating shaft, and a rotating sleeve is arranged on the casing bottom plate to cooperate with the rotating shaft to realize rotation, and the inner diameter of the rotating sleeve is larger than the outer diameter of the rotating shaft and smaller than the outer diameter of the rotating shaft shoulder.

[0008] In one of the embodiments, a limit boss is provided on the shaft shoulder, and a first limit block and a second limit block are symmetrically provided on the rotating sleeve, which cooperate with the limit boss to limit the maximum rotation angle of the main housing to 180 degrees. When the limit boss is located at the position of the first limit block, the suction transition joint faces straight ahead, and the axial flow blower-suction machine is in the dust suction mode. When the limit boss is located at the position of the second limit block, the blowing part faces straight ahead, and the axial flow blower-suction machine is in the blowing mode.

[0009] In one embodiment, the rotation locking structure includes a rotation locking link and a reset elastic member arranged at the rear of the rotation locking link, the rotation locking link is arranged below the handle top plate along the front-to-back direction of the handle, two self-locking bosses are arranged at the front and rear positions of the upper end surface of the rotation locking link, the handle top plate is arranged with two self-locking openings, two arc-shaped rotation grooves are arranged on the bottom plate of the casing with the rotation sleeve as the center, the self-locking boss is snapped into the rotation groove through the self-locking openings; a self-locking bayonet is arranged at the center position of the rotation groove, and under the action of the reset elastic member, the self-locking boss is snapped into the self-locking bayonet to limit the rotation of the main casing.

[0010] In one of the embodiments, the blowing elbow can rotate in direction.

[0011] The beneficial effects of the present invention are mainly manifested in: 1. Without changing the holding method, the main body casing can be rotated to achieve the switching of dust suction and blowing functions, which meets the ergonomic design of the handle and is easy to use; 2. There is no need to change the rotation direction of the fan blade to achieve the dual-purpose functions of dust suction and blowing, which simplifies the control circuit and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the dust collection mode provided by the implementation of the patent of the present invention.

[0013] Figure 2 It is an exploded diagram of the dust collection mode provided by the implementation of the patent of the present invention.

[0014] Figure 3 It is a schematic diagram of the blowing mode provided by the implementation of the patent of the present invention.

[0015] Figure 4 It is an exploded diagram of the blowing mode provided by the implementation of the patent of the present invention.

[0016] Figure 5 It is a schematic diagram of the rotating structure provided by the implementation of the patent of this invention.

[0017] Figure 6 It is a schematic diagram of the chassis bottom plate provided by the implementation of the patent of this invention.

[0018] Figure 7 It is a schematic diagram of the handle top plate provided by the implementation of the patent of this invention.

[0019] Figure 8 It is a structural schematic diagram of the rotary locking connecting rod provided by the implementation of the patent of this invention.

[0020] Fig. 9 It is a top view of the rotary locking connecting rod provided by the implementation of the patent of the present invention.

[0021] The names of the components marked in the figure are as follows: 1. Main casing; 2. Handle; 3. Air flow drive device; 4. Battery mounting seat; 5. Battery pack; 6. Suction transition joint; 7. Blowing part; 8. Blowing elbow; 9. Switch; 10. Rotation locking link; 11. Self-locking boss; 12. Reset elastic member; 13. Dust box; 14. Dust filter; 15. Suction part; 16. Handle top plate; 17. Casing bottom plate; 18. Rotating shaft; 19. Shoulder; 20. Limit boss; 21. Rotating sleeve; 22. First limit block; 23. Second limit block; 24. Self-locking bayonet; 25. Rotating slot. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood by those skilled in the art that these exemplary embodiments are not meant to limit the form of the present invention in any way. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] Reference Figure 1 -9. An embodiment of the present invention provides a dual-purpose axial-flow blowing and sucking machine with a rotatable direction, including a main body housing 1, and an airflow driving device 3 arranged inside the main body housing 1. The main body housing 1 plays a role of accommodation and protection. The airflow driving device 3 is used to generate air flow, specifically, preferably a motor and a fan blade connected to the motor and driven. It also includes a handle 2 connected to the main body housing 1. The handle 2 is designed according to ergonomics and is easy for the operator to hold. A battery mounting seat 4 for installing a battery pack 5 is provided at the bottom of the handle 2, and a switch 9 for controlling the start and stop of blowing and sucking is provided on the handle 2.

[0024] Furthermore, a suction transition joint 6 is provided at one end where the airflow enters the main housing 1, and a blowing part 7 is provided at the other end where the airflow flows out. A dust box 13 detachably connected to the suction transition joint 6 and a suction part 15 detachably connected to the suction transition joint 6 are provided, and a blowing elbow 8 detachably connected to the blowing part 7 is also provided. The suction transition joint 6 is selectively connected to the dust box 13 or the suction part 15. A detachable dust filter 14 is provided inside the dust box 13 for filtering the dust and garbage sucked in under the dust suction mode. The suction part 15 is used to prevent foreign matter from entering the main housing 1 with the airflow in the blowing mode to damage the airflow driving device 3.

[0025] Furthermore, a rotating structure is provided between the main body housing 1 and the handle 2 to realize the rotation between the main body housing 1 and the handle 2, thereby realizing the switching between the blowing mode and the dust collection mode without changing the airflow direction driven by the airflow driving device 3. The rotating structure is provided with a rotating locking structure to lock the circumferential position between the main body housing 1 and the handle 2 to ensure the stability during the working process in the blowing or dust collection mode.

[0026] When the rotation locking structure is pressed to unlock the rotation structure, the main body housing 1 can be rotated, the air suction transition joint 6 is directed to the front, the air blowing part 7 is directed to the rear, the air suction transition joint 6 is installed with the dust box 13, the air blowing part 7 is installed with the air blowing elbow 8, and the axial flow air blowing machine is set to the dust suction mode. Furthermore, the air blowing elbow 8 can be rotated to avoid the air blowing toward the operator in the dust suction mode.

[0027] When the rotation locking structure is pressed to unlock the rotation structure, the main body housing 1 can be rotated, the blowing part 7 is directed to the front, the suction transition joint 6 is directed to the rear, the suction transition joint 6 is installed with the suction part 15, and the axial flow blower-suction machine is set to the blowing mode. Optionally, the blowing part 7 is installed with the blowing elbow 8 to clean some corners that cannot be reached by the straight pipe.

[0028] Specifically, the rotating structure includes a handle top plate 16 disposed on the top of the handle 2 and a housing bottom plate 17 at the bottom of the main housing 1. In order to realize rotation, a rotating shaft 18 is disposed at the center of the handle top plate 16, a shaft shoulder 19 is disposed at the end of the rotating shaft 18, and a rotating sleeve 21 is disposed on the housing bottom plate 17 to realize rotation in cooperation with the rotating shaft 18, and the inner diameter of the rotating sleeve 21 is larger than the outer diameter of the rotating shaft 18 and smaller than the outer diameter of the shoulder of the rotating shaft 18.

[0029] Furthermore, in order to limit the rotation angle between the main housing 1 and the handle top plate 16 to avoid cable entanglement, a limit boss 20 is provided on the shaft shoulder 19. At the same time, a first limit block 22 and a second limit block 23 are symmetrically provided on the rotating sleeve 21, and cooperate with the limit boss 20 to limit the maximum rotation angle of the main housing 1 to 180 degrees. When the limit boss 20 is located at the position of the first limit block 22, the suction transition joint 6 faces forward, and the axial flow blower-suction machine is in the dust suction mode. When the limit boss 20 is located at the position of the second limit block 23, the blowing part 7 faces forward, and the axial flow blower-suction machine is in the blowing mode.

[0030] Specifically, the rotation locking structure includes a rotation locking link 10 and a reset elastic member 12 arranged at the rear of the rotation locking link 10. The rotation locking link 10 is arranged below the handle top plate 16 along the front-to-back direction of the handle 2, and the reset elastic member 12 is pressed against the inner surface of the handle 2 backward. Specifically, the reset elastic member 12 is preferably a spring. Two self-locking bosses 11 are arranged at the front and rear positions of the upper end face of the rotation locking link 10, the handle top plate 16 is provided with two self-locking openings, and two arc-shaped rotation grooves 25 are arranged on the housing bottom plate 17 with the rotation sleeve 21 as the center; the self-locking boss 11 is inserted into the rotation groove 25 through the self-locking opening. In order for the operator to unlock the rotation structure, the front end of the rotation locking link 10 extends out of the surface of the handle 2.

[0031] Furthermore, a self-locking bayonet 24 is provided at the center of the rotation slot 25, and under the action of the reset elastic member 12, the self-locking boss 11 is locked into the self-locking bayonet 24 to limit the rotation of the host housing 1. When the operator presses the rotation locking link 10, the reset elastic member 12 is compressed, the self-locking boss 11 is located within the rotation slot 25 and is no longer restricted, and the host housing 1 can be rotated to select the operation mode.

[0032] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. A dual-purpose axial-flow blowing and sucking machine with a rotatable direction, comprising a main body shell, and an airflow driving device arranged inside the main body shell, one end of the main body shell is set as a suction transition joint, and the other end is set as a blowing part, a dust box detachably connected to the suction transition joint and a suction part detachably connected to the suction transition joint, a blowing elbow detachably connected to the blowing part, the suction transition joint is selectively connected to the dust box or the suction part, a detachable dust filter is arranged inside the dust box, and also comprises a handle connected to the main body shell, a battery mounting seat for installing a battery pack is arranged at the bottom of the handle, and a switch for controlling the start and stop of blowing and sucking is arranged on the handle, characterized in that: A rotating structure is provided between the main body shell and the handle to realize the rotation between the main body shell and the handle, and a rotating locking structure is provided on the rotating structure to lock the circumferential position between the main body shell and the handle; when the rotating locking structure is pressed, the main body shell can be rotated, the suction transition joint is directed to the front, and the blowing part is directed to the rear, the suction transition joint is installed with the dust box, and the blowing part is installed with the blowing elbow, so that the axial flow blowing and suction machine is set to the dust suction mode; when the rotating locking structure is pressed, the The main body shell is oriented such that the blowing part faces forward, the suction transition joint faces backward, the suction transition joint is installed with the suction part, and the axial flow blowing and sucking machine is set to the blowing mode; the rotating structure includes a handle top plate arranged on the top of the handle and a casing bottom plate at the bottom of the main body shell; a rotating shaft is arranged at the center of the handle top plate, a shaft shoulder is arranged at the end of the rotating shaft, a rotating shaft sleeve is arranged on the casing bottom plate, and the rotating shaft sleeve is matched with the rotating shaft to realize the rotation, and the inner diameter of the rotating shaft sleeve is larger than the outer diameter of the rotating shaft and smaller than the outer diameter of the rotating shaft shoulder; the A limiting boss is arranged on the shaft shoulder, and a first limiting block and a second limiting block are symmetrically arranged on the rotating shaft sleeve, which cooperate with the limiting boss to limit the maximum rotation angle of the main body shell to 180 degrees. When the limiting boss is located at the position of the first limiting block, the suction transition joint faces straight ahead, and the axial-flow blower-suction machine is in the dust suction mode. When the limiting boss is located at the position of the second limiting block, the blowing part faces straight ahead, and the axial-flow blower-suction machine is in the blowing mode. The rotation locking structure includes a rotation locking connecting rod and a rotation locking connecting rod arranged behind the rotation locking connecting rod. The reset elastic member of the part, the rotation locking link is arranged under the handle top plate along the front-rear direction of the handle, two self-locking bosses are arranged at the front-rear positions of the upper end surface of the rotation locking link, and the handle top plate is provided with two self-locking openings. With the rotating sleeve as the center, two arc-shaped rotation grooves are arranged on the bottom plate of the casing, and the self-locking bosses are inserted into the rotation grooves through the self-locking openings; a self-locking bayonet is arranged at the center position of the rotation groove, and under the action of the reset elastic member, the self-locking bosses are inserted into the self-locking bayonet to limit the rotation of the main body casing.

2. The rotatable dual-purpose axial flow blowing and suction machine according to claim 1, characterized in that: The blowing curved pipe can rotate in direction.

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