Anti-stuffiness backpack type dust collector

Abstract

The utility model discloses an anti-stuffiness backpack dust collector which comprises a tower-type machine shell, an airflow channel located in the vertical center of the machine shell and convection chambers which are arranged in the machine shell, located on the two sides of the airflow channel and form independent interval spaces, the airflow channel is sunken towards the convection chambers to form fan grooves, and the fan grooves are provided with power fans. Local fan blades of the power fan extend into the airflow channel, the convection chamber is provided with an airflow fan driven by the power fan through a transmission mechanism, and the convection chamber is provided with an air inlet window and an air blowing window facing the front side on the outer wall face of the machine shell. Airflow circulation of the dust collector can push the power fan to rotate and then drive the airflow fan to rotate, one-way airflow is formed in the convection chamber, air enters from the air inlet window, flows out from the air blowing window and is blown to the position of the back and the waist of a user carrying the dust collector, and therefore the use comfort of the dust collector is improved. Extra electric drive is not needed for blowing, and the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to vacuum cleaner technology, in particular to an anti-stuffy back-mounted vacuum cleaner. Background Art

[0002] A back-mounted vacuum cleaner is similar to a backpack and is carried on the user's back using double shoulder straps. Since the main body of the vacuum cleaner is located behind the user and is close to or even adjacent to the user's back, the heat dissipation of the user's back is poor and there is a stuffy feeling. And back-mounted vacuum cleaners are usually used outdoors without air conditioning. The user also needs to continuously move to control the vacuum cleaner, and effort is required to carry the vacuum cleaner, resulting in more heat that needs to be dissipated, leading to an increased sense of stuffiness on the back. And the places where dust is sucked are not suitable for placing electric fans, because the electric fans will blow the dust and garbage that need to be sucked away, thereby increasing the work difficulty and workload. Since the dust-sucking work requires both hands, it is impossible to hold a small fan to cool down; nor is there a position to carry a fan for heat dissipation. Even if an additional fan is used, it also requires electric energy to drive the fan. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide an anti-stuffy back-mounted vacuum cleaner that improves the comfort of use and saves energy.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: an anti-stuffy back-mounted vacuum cleaner, which includes a tower-shaped housing, an air flow channel located in the vertical central part of the housing, and convection chambers formed on both sides of the air flow channel in the housing and forming independent spaced spaces. The air flow channel is recessed towards the convection chambers to form fan grooves. The fan grooves are provided with power fans, and partial fan blades of the power fans extend into the air flow channel. The convection chambers are provided with air flow fans driven by the power fans through transmission mechanisms. The convection chambers are provided with air inlet windows on the outer wall surface of the housing and blowing windows facing the front side.

[0005] As an improvement of the technical solution of the anti-stuffy back-mounted vacuum cleaner of the utility model, the fan blades of the power fans are inclined forward or parallel to the rotating shaft.

[0006] As an improvement of the technical solution of the anti-stuffy back-mounted vacuum cleaner of the utility model, the blowing window is a diffusing window with fixed window leaves and gradually changing inclination angles.

[0007] As an improvement of the technical solution of the anti-stuffy back-mounted vacuum cleaner of the utility model, the blowing window is fan-shaped or fan-annular, and its window leaves are arranged along the arc length direction.

[0008] As an improvement of the technical solution of the anti-stuffy back-mounted vacuum cleaner of the utility model, the air inlet window is a fixed-blade louvre window.

[0009] As an improvement to the technical solution of the anti-stuffy-backpack vacuum cleaner of the present utility model, the blowing window is an integral window, and a flow guide plate for docking with the blowing window is provided on the front side of the housing.

[0010] As an improvement to the technical solution of the anti-stuffy-backpack vacuum cleaner of the present utility model, the front side of the flow guide plate is a fan-shaped ring groove type, and support flanges are provided at the upper and lower edges.

[0011] As an improvement to the technical solution of the anti-stuffy-backpack vacuum cleaner of the present utility model, the axes of the air flow fan and the power fan are parallel to each other, and the transmission mechanism is a transmission belt or a reduction gear set.

[0012] The beneficial effects of the present utility model are as follows: For the anti-stuffy-backpack vacuum cleaner, convection chambers are provided on both sides of the air flow channel inside the housing, and a power fan is provided in the sunken fan groove, and a part of the power fan extends into the original main ventilation path of the vacuum cleaner, that is, the air flow channel. During the operation of the vacuum cleaner, the air flow circulation can drive the power fan to rotate, and then drive the air flow fan in the convection chamber to rotate through the transmission mechanism, so that a unidirectional air flow is formed in the convection chamber. The air flow makes the air enter from the air inlet window, flow out from the blowing window and blow to the position of the back and the lower back of the vacuum cleaner user / backpack carrier, so as to dissipate heat and cool down, thereby improving the use comfort of the vacuum cleaner. The auxiliary air flow fan for blowing is driven by the air flow in the main air duct of the vacuum cleaner to drive the power fan and then drive its operation, which has a good energy-saving effect, does not require additional electric drive, saves electric energy, and plays a role in energy conservation and emission reduction. Description of the Drawings

[0013] Figure 1 It is a partially cut-away and enlarged three-dimensional structural schematic diagram of an anti-stuffy-backpack vacuum cleaner of the present utility model.

[0014] Figure 2 It is Figure 1 The three-dimensional structural schematic diagram of the bottom side view of the anti-stuffy-backpack vacuum cleaner shown.

[0015] Figure 3 It is Figure 1 The three-dimensional structural schematic diagram of the obliquely upward view of the anti-stuffy-backpack vacuum cleaner shown.

[0016] Figure 4 It is Figure 1 The three-dimensional structural schematic diagram of the side view of the anti-stuffy-backpack vacuum cleaner shown.

[0017] Figure 5 It is Figure 1 The three-dimensional structural schematic diagram of the rear side view of the anti-stuffy-backpack vacuum cleaner shown.

[0018] Figure 6 It is Figure 1 The three-dimensional structural schematic diagram of the embodiment of the anti-stuffy-backpack vacuum cleaner shown with a semi-side flow guide groove plate.

[0019] Figure 7 It is a schematic structural diagram of a flow guiding groove plate.

[0020] Figure 8 It is a schematic structural diagram of another flow guiding groove plate. Specific embodiments

[0021] The following further illustrates the specific embodiments of the present invention with reference to the accompanying drawings.

[0022] Embodiment 1: As shown in Figure 1 , Figure 2 , Figure 3 , a heat - resistant and stuffy - proof backpack vacuum cleaner of the present invention includes a tower - shaped housing 11, an air flow channel 12 located at the vertical center of the housing, and convection chambers 13 formed on both sides of the air flow channel 12 in the housing 11 and forming independent spaced - apart spaces. The air flow channel 12 is recessed towards the convection chambers to form fan grooves 21. A power fan 22 is provided in the fan grooves 21, and a partial fan blade of the power fan extends into the air flow channel 12. An air flow fan 31 driven by the power fan 22 through a transmission mechanism is provided in the convection chamber 13. The convection chamber 13 is provided with an air inlet window 35 on the outer wall surface of the housing and a blowing window 36 facing the front side. For the heat - resistant and stuffy - proof backpack vacuum cleaner, convection chambers 13 are provided on both sides of the air flow channel 12 in the housing 11, and a power fan 22 is provided in the recessed fan grooves 21, with a partial extension of the power fan into the original main air passage of the vacuum cleaner, i.e., the air flow channel 12. The air flow channel 12 runs through the middle of the vacuum cleaner body, taking in air from the top and exhausting it from the bottom, forming an air flow running through the middle of the body, and the air flow has fluid power. The convection chamber 13 is enclosed by the corresponding outer wall surface of the housing in combination with a top partition 13a, a bottom partition 13b, and an inner partition 13c. The inner partition part is the enclosure wall of the air flow channel 12. During the operation of the vacuum cleaner, its air flow cycle can drive the power fan 22 to rotate, and then drive the air flow fan 31 in the convection chamber to rotate through a transmission mechanism, so that a unidirectional air flow is formed in the convection chamber 13. The air flow makes air enter from the air inlet window 35, flow out from the blowing window 36 and blow to the position of the lower back of the back of the vacuum cleaner user / backpack wearer, cooling and dissipating heat for him / her, thereby improving the comfort of using the vacuum cleaner. The auxiliary air flow fan 31 for blowing is driven by the air flow in the main air passage of the vacuum cleaner to drive the power fan 22 and then drive its operation, which has a good energy - saving effect, does not require additional electric drive, saves electric energy, and plays a role in energy conservation and emission reduction.

[0023] Among them, the fan blades of the power fan 22 are parallel to the rotating shaft 22a. The airflow in the airflow channel 12 at the central part of the casing pushes the fan blades to rotate naturally, and synchronously rotates the rotating shaft 22a of the power fan 22, forming a rotating power, converting a part of the kinetic energy of the waste airflow into a rotational driving force, and producing an energy-saving effect. The fan blades of the power fan 22 can also be tilted forward to reduce the obstruction to the airflow.

[0024] Among them, as Figure 4 , Figure 5 shown, the blowing window 36 is a diffuser window with fixed window leaves and gradually changing inclination angles, so that the blown air can be scattered onto the back of the wearer, increasing the heat dissipation and cooling area / scope.

[0025] Furthermore, the blowing window 36 is fan-shaped or fan-annular, and its window leaves are arranged along the arc length direction, forming an effect of spreading from the center of the circle to the circumference.

[0026] Furthermore, the air inlet window 35 is a louver window with fixed window leaves, which can allow the airflow to enter and effectively block the entry of obstacles.

[0027] Embodiment 2: As Figure 6 shown, on the basis of the above embodiment, the blowing window 36 is set as an integral window, and a deflector 38 for docking with the blowing window 36 is provided on the front side of the casing 11 to direct and diffuse the airflow. Different deflectors 38 can be selected according to the body types of different people and the blowing parts, so as to cover different body parts for blowing heat dissipation and cooling.

[0028] Furthermore, the front side of the deflector 38 is a fan-annular groove type, as Figure 7 shown; it can also be a horn type, as Figure 8 shown, forming airflow guidance and diffusion extension, and support flanges 39 are provided on the upper and lower edges. The flange includes a vertical edge perpendicular to the deflector 38 body and a horizontal outer lip perpendicular to the vertical edge. The vertical edge of the flange blocks the airflow to limit its dissipation and guides the direction of the airflow, and the lip increases the area and abuts against the waist of the wearer, increasing the force-bearing area and thus being more comfortable.

[0029] Among them, the rotating shaft 31a of the airflow fan 31 is parallel to the rotating shaft 22a of the power fan 22, and the transmission mechanism is a transmission belt 23 or a reduction gear set, both of which can transmit the rotational power to the airflow fan 31, thereby rotating to generate the airflow for cooling in the convection chamber 13. The transmission belt can be a toothed belt / belt.

[0030] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A stuffy-proof backpack vacuum cleaner, characterized in that: It includes a tower-shaped housing, an air flow channel located at the vertical center of the housing, and convection chambers that are provided inside the housing and on both sides of the air flow channel to form independent spaced spaces. The air flow channel is recessed towards the convection chambers to form fan slots. Power fans are provided in the fan slots, and partial fan blades of the power fans extend into the air flow channel. Air flow fans driven by the power fans through a transmission mechanism are provided in the convection chambers. The convection chambers are provided with air inlet windows on the outer wall surface of the housing and blowing windows facing the front side.

2. The anti-stuffy-backpack vacuum cleaner according to claim 1, wherein: The fan blades of the power fans are tilted forward or parallel to the rotating shaft.

3. The anti-stuffy-backpack vacuum cleaner according to claim 1, wherein: The blowing window is a diffuser window with fixed window leaves and gradually changing tilt angles.

4. The anti-stuffy-backpack vacuum cleaner according to claim 3, wherein: The blowing window is fan-shaped or fan-annular, and its window leaves are arranged along the arc length direction.

5. The anti-stuffy-backpack vacuum cleaner according to claim 3, wherein: The air inlet window is a louvre window with fixed window leaves.

6. The anti-stuffy-backpack vacuum cleaner according to claim 1, wherein: The blowing window is an integral window, and a guide plate for docking with the blowing window is provided on the front side of the housing.

7. The anti-stuffy-back vacuum cleaner according to claim 6, characterized in that: The front side of the guide plate is fan-annular and groove-shaped, and support flanges are provided along the upper and lower edges.

8. The anti-stuffy-back vacuum cleaner according to claim 1, characterized in that: The air flow fans and the rotating shafts of the power fans are parallel to each other, and the transmission mechanism is a transmission belt or a reduction gear set.

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