A hand-propelled double-motor blowing and suction machine

Abstract

The present invention relates to a hand-propelled dual-motor blowing and sucking machine, comprising a hand-propelled machine body and a dust collecting hood, the dust collecting hood being installed at the rear of the hand-propelled machine body, two volutes being installed on the hand-propelled machine body, an air duct provided on the volute being connected to the dust collecting hood, and a blowing pipe being connected to the lower part of the air duct body; a motor is respectively connected to the two volutes, and the angle between the shaft core of the motor and the bottom surface of the hand-propelled machine body is distributed in a range of 0 to 90 degrees; an air suction pipe is installed between the two volutes, and the air suction pipe is located at the front of the hand-propelled machine body; the beneficial effects of the present invention are as follows: by arranging a double volute and a double motor structure on the hand-propelled machine body, the invention has the advantages of simple structure, strong blowing and suction force, and high efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of garden tools, and in particular relates to a hand-propelled dual-motor blowing and sucking machine. Background Art

[0002] A blower-suction machine is an outdoor cleaning tool, mainly used for cleaning and collecting fallen leaves. It blows away leaves or grass clippings by blowing air, or sucks leaves or grass clippings into a dust collection hood by sucking air. The switching function of blowing or sucking air is generally achieved through the action of a windshield, a torsion spring, and a wave handle or an adjustment handle. Because it is easy and quick to use, it is suitable for use in gardening or street sanitation work. However, the existing hand-pushed blowers are all single-motor type, and the corresponding volute is also a single volute structure. In actual application, the blowing and suction force is not strong enough. Therefore, it is time-consuming and laborious for workers to clean or collect fallen leaves, and the efficiency is not high. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a hand-propelled dual-motor blowing and suction machine with a simple structure, strong blowing and suction force and high efficiency.

[0004] The objective of the present invention is achieved through the following technical scheme, the hand-push dual-motor blower-suction machine comprises a hand-push body and a dust hood, the dust hood is installed at the rear of the hand-push body, two volutes are installed on the hand-push body, the air duct provided on the volute is connected to the dust hood, and a blowing pipe is connected to the bottom of the air duct body; the two volutes are respectively connected to a motor, and the angle between the shaft core of the motor and the bottom surface of the hand-push body is distributed in a range of 0 to 90 degrees; a suction pipe is installed between the two volutes, and the suction pipe is located in front of the hand-push body.

[0005] Preferably, the two volutes are perpendicular to the bottom surface of the hand-push machine body and are symmetrically distributed with respect to the center line of the hand-push machine body.

[0006] Preferably, the motors installed on the volutes are located on both sides or above the two volutes, and the motors installed on the volutes are symmetrically distributed around the center of the hand-push machine body.

[0007] Preferably, the air duct is divided into a first air duct and a second air duct, the first air duct is a Y-shaped two-in-one air duct and is connected to the two volutes, and the second air duct is two channels distributed in parallel in the same direction and are respectively connected to the two volutes.

[0008] Preferably, a blowing pipe is connected below the first air duct, and the blowing pipe is located above the suction pipe.

[0009] Preferably, the suction pipe is a U-shaped wide-mouth suction pipe with a depression in the middle, and the blowing port of the blowing pipe is located at the depression in the middle of the suction pipe.

[0010] Preferably, a blowing pipe is connected below the second air duct, and the blowing pipe is located at the bottom of the hand-push machine body.

[0011] Preferably, the suction pipe is an I-shaped wide-mouth suction pipe, and the blowing port of the blowing pipe faces the suction pipe.

[0012] Preferably, a rotation adjustment device is provided between the air suction pipe and one of the two volutes, and the rotation angle and position limit fixation of the air suction pipe are controlled by the rotation adjustment device.

[0013] Preferably, the rotation adjustment device includes a pull rod ring and a spring, and a circle of evenly distributed toothed limiting grooves is provided on the side wall of the suction pipe connected to one of the volutes, and a hole for the pull rod ring to pass through is provided on the side wall of the volute; the two ends of the spring are respectively fixed between the pull rod ring and the side wall of the volute, and the pull rod on the pull rod ring is adapted to the limiting groove.

[0014] The beneficial effects of the present invention are as follows: by arranging a double volute and a double motor structure on the hand-push machine body, and according to the arrangement of the motor on the volute, the suction pipe and the volute can be arranged into a rotatable or fixed structure, which has the advantages of simple structure, strong blowing and suction force, and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The cross-sectional three-dimensional structure of the present invention is schematically shown Figure 1 .

[0016] Figure 2 The cross-sectional three-dimensional structure of the present invention is schematically shown Figure 2 .

[0017] Figure 3 It is a structural schematic diagram of the air suction state of the air suction pipe of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the air suction pipe of the present invention in a folded state.

[0019] Figure 5 It is a schematic diagram of the bottom structure of the present invention.

[0020] Figure 6 It is a schematic diagram of the first air duct structure of the present invention.

[0021] Figure 7 It is a schematic diagram of the second air duct structure of the present invention.

[0022] The numbers in the accompanying drawings are: 1, hand-push machine body; 2, dust hood; 3, volute; 4, blow pipe; 5, motor; 6, suction pipe; 7, rotary adjustment device; 8, fan blade; 31, air duct; 32, hole; 61, limiting groove; 71, pull rod ring; 72, spring; 31-1, first air duct; 31-2, second air duct; 71-1, pull rod. DETAILED DESCRIPTION

[0023] The following will be combined with the attached Figures 1 to 7 The present invention is introduced in detail: the present invention comprises a hand-push body 1 and a dust collecting hood 2. The dust collecting hood 2 is installed at the rear of the hand-push body 1 to collect impurities such as leaves or grass clippings sucked in through the suction pipe 6. Two volutes 3 are installed on the hand-push body 1. The air duct 31 provided on the volute 3 is connected to the dust collecting hood 2, and a blowing pipe 4 is connected to the lower part of the air duct 31 body, through which impurities such as leaves or grass clippings on the ground are blown away or collected to a fixed point; the two volutes 3 are respectively connected to a motor 5, and the fan blades 8 connected to the motor shaft are located in the volute 3, and the angle between the shaft core of the motor 5 and the bottom surface of the hand-push body 1 is distributed in a range of 0 to 90 degrees; a suction pipe 6 is installed between the two volutes 3, and the suction pipe 6 is located in the front of the hand-push body 1 to suck impurities such as leaves or grass clippings on the ground.

[0024] In order to make the position distribution of the volute 3 on the hand-push machine body more reasonable and aesthetic, and to facilitate processing and installation, the two volutes 3 are perpendicular to the bottom surface of the hand-push machine body 1 and are symmetrically distributed with respect to the center line of the hand-push machine body 1 .

[0025] The motors 5 installed on the volutes 3 are located on both sides or above the two volutes 3 , and the motors 5 installed on the volutes 3 are symmetrically distributed around the center of the hand-propelled machine body 1 .

[0026] The air duct 31 is divided into a first air duct 31-1 and a second air duct 31-2. Figure 6 As shown, the first air duct 31-1 is a Y-shaped two-in-one air duct and is connected to the two volutes 3. Figure 7 As shown, the second air duct 31 - 2 is two channels distributed in parallel in the same direction and are connected to the two volutes 3 respectively.

[0027] Embodiment 1: As shown in the attached Figure 7As shown, when the two motors 5 are respectively located above the two volutes 3, that is, the angle between the shaft core of the motor 5 and the bottom surface of the hand-push machine body 1 is 90 degrees; at this time, the suction pipe 6 and the volute 3 are fixed structures, that is: a blowing pipe 4 is connected to the bottom of the first air duct 31-1, and the blowing pipe 4 is located above the suction pipe 6; the suction pipe 6 is a U-shaped wide-mouth suction pipe with a depression in the middle, and the blowing port of the blowing pipe 4 is located at the middle depression of the suction pipe 6; the blowing or suction control of this structure is achieved by providing a wind shield between the blowing pipe 4 and the main body of the first air duct 31-1, and a wave handle connected to the wind shield, and the wind shield is switched to block different pipe openings through the wave handle. This technology is a switching technology commonly used by personnel in this technical field.

[0028] Embodiment 2: As shown in the attached Figures 1 to 4 As shown in FIG. 1 , when the two motors 5 are located on both sides of the two volutes, the angle between the shaft core of the motor 5 and the bottom surface of the hand-push machine body 1 is 0 degrees; at this time, the suction pipe 6 and the volute 3 are an adjustable rotating structure, that is, the lower part of the second air duct 31-2 is connected with a blowing pipe 4 (as shown in FIG. Figure 5 As shown), the blowing pipe 4 is located at the bottom of the hand-push machine body 1; the suction pipe 6 is an I-shaped wide-mouth suction pipe, and the blowing port of the blowing pipe 4 faces the suction pipe 6; the blowing or suctioning of this structure is controlled by setting a wind shield between the blowing pipe 4 and the second air duct, and an adjusting handle connected to the wind shield through a torsion spring. The wind shield is switched to block different pipe openings by adjusting the handle. This technology is a switching technology commonly used by personnel in this technical field.

[0029] At this time, the connection structure between the air suction pipe 6 and the volute 3 is as follows: Figure 7 As shown, a rotation adjustment device 7 is provided between the air suction pipe 6 and one of the two volutes 3, and the rotation angle and position fixing of the air suction pipe 6 are controlled by the rotation adjustment device 7. The rotation adjustment device 7 includes a tie rod ring 71 and a spring 72. A circle of tooth-shaped position limiting grooves 61 with equal distribution is provided on the side wall of the air suction pipe 6 connected to one of the volutes 3, and a hole 32 for the tie rod ring 71 to be inserted is provided on the side wall of the volute 3; the two ends of the spring 72 are respectively fixed between the tie rod ring 71 and the side wall of the volute 3, and the tie rod 71-1 on the tie rod ring 71 is adapted to the position limiting groove 61.

[0030] Through the structural distribution between the above-mentioned motor and the volute, the volume of the entire blow-suction machine can be reduced by folding the suction tube 6 during packaging; however, when the blow-suction machine is in the blowing state, the suction tube 6 can be rotated upward and the adjustment handle can be pressed, so that the wind shield can be controlled to the blowing state. If the suction tube 6 is rotated downward, the adjustment handle automatically resets the wind shield through the torsion spring, thereby realizing the suction function.

[0031] The present invention is not limited to the above-mentioned embodiments. No matter any changes are made in the shape or material composition, any structural design provided by the present invention is a variation of the present invention and should be considered to be within the protection scope of the present invention.

Claims

1. A hand-propelled dual-motor blowing and suction machine, comprising a hand-propelled machine body (1) and a dust collecting hood (2), wherein the dust collecting hood (2) is installed at the rear of the hand-propelled machine body (1), characterized in that: The hand-push machine body (1) is provided with two volutes (3), the volutes (3) are provided with an air duct (31) which is in communication with the dust collecting cover (2), and a blow pipe (4) is connected to the lower part of the air duct (31); the two volutes (3) are respectively connected with a motor (5), and the angle between the shaft core of the motor (5) and the bottom surface of the hand-push machine body (1) is 0 degrees; an air suction pipe (6) is installed between the two volutes (3), and the air suction pipe (6) is located in front of the hand-push machine body (1); The two volutes (3) are perpendicular to the bottom surface of the hand-push machine body (1) and are symmetrically distributed with respect to the center line of the hand-push machine body (1); The air duct (31) comprises a second air duct (31-2), wherein the second air duct (31-2) is two channels distributed in parallel in the same direction and respectively connected to the two volutes (3); A blowing pipe (4) is connected below the second air duct (31-2), and the blowing pipe (4) is located at the bottom of the hand-push machine body (1); The air suction pipe (6) is an I-shaped wide-mouth air suction pipe, and the air blowing port of the air blowing pipe (4) faces the air suction pipe (6); A rotation adjustment device (7) is provided between the air suction pipe (6) and one of the two volutes (3), and the rotation angle and position limit fixation of the air suction pipe (6) are controlled by the rotation adjustment device (7); The rotation adjustment device (7) comprises a pull rod ring (71) and a spring (72); a circle of evenly distributed toothed limiting grooves (61) is provided on the side wall of the suction pipe (6) connected to one of the volutes (3); and a hole (32) for the pull rod ring (71) to pass through is provided on the side wall of the volute (3); the two ends of the spring (72) are respectively fixed between the pull rod ring (71) and the side wall of the volute (3), and the pull rod (71-1) on the pull rod ring (71) is adapted to the limiting groove (61).

2. The hand-propelled dual-motor blowing and suction machine according to claim 1, characterized in that: The motors (5) installed on the volutes (3) are located on both sides of the two volutes (3), and the motors (5) installed on the volutes (3) are symmetrically distributed around the center of the hand-propelled machine body (1).

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