Backpack type dust collector capable of fanning

Abstract

The utility model discloses a knapsack dust collector capable of fanning, which comprises a tower-type casing, fans arranged on the left side and the right side of the casing, and a fastening hoop connected with a base of the fans and used for pressing and attaching the base to the side surface of the casing, and the base of the fan and the side surface of the casing are mutually positioned so as to be attached and spliced in a rotation-stopping and slip-stopping manner. The dust collector is provided with the positioning holes and the corresponding positioning protruding blocks which are matched with each other for positioning, vertical sliding of the fan is avoided, the fan is prevented from moving front and back, and the positioning protruding blocks are provided with inner clamping hooks to prevent the fan from sliding laterally. The fastening hoop prevents the fan from being disengaged towards the left outer side and the right outer side. And then the fan can be driven to rotate through power connection or transmission, air is blown to cool the back of the user from the back of the user, and cool and comfortable feelings are brought to the user.

Description

Technical Field

[0001] The utility model relates to the technology of vacuum cleaners, in particular to a backpack vacuum cleaner capable of fanning air. Background Art

[0002] A backpack vacuum cleaner is similar to a backpack and is carried on the user's back using a shoulder strap. Since the vacuum cleaner main unit is located behind the user and is close to or even touching the user's back, the user's back does not dissipate heat well and feels stuffy. In addition, backpack vacuum cleaners are usually used outdoors in places without air conditioning. The user needs to constantly move to operate the vacuum cleaner, and carrying the vacuum cleaner also requires exerting force, which generates a lot of heat that needs to be dissipated, exacerbating the stuffy feeling. Since vacuuming requires both hands, it is not possible to use a small handheld fan for cooling. If you consider directly changing the direction of the airflow discharged from the vacuum cleaner to blow it towards the wearer for heat dissipation and cooling, the wind is not clean and can easily stain clothes. If you use the internal airflow power conversion inside the vacuum cleaner to form a new airflow, due to its small internal space, the wind force generated by the conversion is relatively small, the heat dissipation and cooling range is limited, and the effect is not good. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a backpack vacuum cleaner with a fan function that can provide a large air volume and alleviate the feeling of stuffiness when carrying the bag.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a backpack vacuum cleaner with fanning function, which includes a tower-shaped casing, fans arranged on the left and right sides of the casing, and a fastening hoop connecting the base of the fan and pressing the base against the side of the casing. The base of the fan and the side of the casing are positioned with each other and are fitted together to prevent rotation and slipping.

[0005] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, an air flow channel is provided in the vertical central portion of the casing, and fan grooves are provided in the casing and on both sides of the air flow channel. A power fan is provided in the fan groove, and partial blades of the power fan extend into the air flow channel. The rotating shaft of the power fan drives the fan through a transmission mechanism.

[0006] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, the transmission mechanism includes a support frame, an output gear installed at the end of the support frame, a transmission belt that is wound around the axle of the output gear and the rotating shaft of the power fan for transmission, and a transmission gear that is provided at the base of the fan and meshes with the output gear. The transmission gear drives the fan blades to rotate through a secondary transmission assembly.

[0007] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, the fan is plugged into a power socket of the vacuum cleaner via a power cord.

[0008] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, the fastening hoop is provided with a disconnection position and a connecting buckle to connect the disconnected ends; the fastening hoop passes through the base of the fan to fix the fan.

[0009] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, the fan is provided with a straight through hole at a certain height from its bottom surface, and the fastening hoop is a tight soft belt passing through the through hole.

[0010] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, a hook piece is provided on the bottom surface of the fan with one end connected to the base, and a straight through hole is formed between the hook piece and the base for the fastening hoop to pass through.

[0011] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, two fastening hoops are provided to fix the base of the fan.

[0012] As an improvement to the technical solution of the fan-capable backpack vacuum cleaner of the present invention, two groups of fan blades arranged vertically are provided on both sides of the housing.

[0013] The beneficial effect of the present invention is that the fan-type backpack vacuum cleaner can be positioned by setting positioning holes and corresponding positioning protrusions to cooperate with each other to prevent the fan from sliding vertically and preventing the fan from moving forward and backward. The positioning protrusions are provided with internal hooks to prevent the fan from sliding sideways. The fastening hoop binds the base and presses it against the side of the casing, thereby preventing the fan from detaching in the left and right outer directions. Therefore, the cooperation between the fastening hoop and the positioning component fixes the fan to both sides of the casing. Setting the fan on the outside can provide a larger air volume for heat dissipation. Then, the fan can be driven to rotate by connecting electricity or transmission, blowing air from the back of the wearer to cool down the back, bringing a cool and comfortable feeling to the wearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the main structure of a backpack vacuum cleaner with fan function.

[0015] Figure 2 This is a schematic diagram of the main structure of the fan component.

[0016] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the fan shown.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the tower casing of the vacuum cleaner.

[0018] Figure 5 for Figure 1The lower part of the backpack vacuum cleaner is partially cut away from the front side and is a schematic diagram of the oblique three-dimensional structure.

[0019] Figure 6 for Figure 1 The bottom side oblique three-dimensional structural diagram of the backpack vacuum cleaner is shown.

[0020] Figure 7 for Figure 5 The diagram shows a partially cutaway front bottom oblique three-dimensional structure of the lower portion of a backpack vacuum cleaner.

[0021] Figure 8 This is a first three-dimensional structural schematic diagram of the airflow power recovery, conversion and transmission mechanism.

[0022] Figure 9 for Figure 8 The second three-dimensional structural schematic diagram of the airflow power recovery, conversion and transmission mechanism is shown.

[0023] Figure 10 This is a perspective partial structural diagram of a vacuum cleaner, showing part of the structure of the airflow power recovery, conversion and transmission mechanism inside the vacuum cleaner. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 、 Figure 7As shown, the present invention provides a backpack vacuum cleaner with fan function, comprising a tower-shaped housing 11, fans 12 disposed on the left and right sides of the housing 11, and a fastening ring 13 connecting a base 21 of the fan 12 and pressing the base 21 against the side of the housing 11. The base 21 of the fan 12 and the side of the housing 11 are mutually positioned to fit together and prevent rotation and slipping. Specifically, the housing 11 is provided with a positioning groove / positioning hole 14 / 14a, and the bottom surface of the fan base 21 is provided with a positioning protrusion 24 / 24a or a positioning pin that adapts to the positioning groove / positioning hole 14 / 14a. Typically, three positioning holes 14 and corresponding positioning protrusions 24 / 24a are provided to coordinate with each other for positioning. Two positioning holes are located at the bottom to provide positioning and support, preventing the fan from sliding vertically and preventing it from moving forward or backward. The positioning protrusion 24 inserted into the bottom can be equipped with an internal hook to prevent it from moving backward after insertion, initially securing the fan to the side of the housing 11. At least one positioning hole 14 is provided at the top, and the corresponding positioning protrusion 24a prevents the fan from swinging back and forth. The fastening ring 13 secures the base 21 and presses it against the side of the housing 11, preventing the fan from dislodging in either the left or right direction. The coordination between the fastening ring 13 and the positioning components secures the fan to both sides of the housing 11. Power or transmission is then applied to drive the fan, creating airflow that blows heat and cools the user's back, improving user comfort and providing a cool and comfortable feeling. The bottom side of the fan base fits snugly against the side of the housing 11 and can then be connected using screws or buckles. However, this connection method is not suitable for multiple disassembly and assembly during seasonal changes. Therefore, the fan can be tied to both sides of the housing 11 using a hoop, but the vibration of the fan can easily cause it to loosen; a simple buckle connection is also not secure. In the present invention, the fan is positioned in two directions using positioning holes and positioning buckles, limiting multiple degrees of freedom, and then the fan is constrained by the hoop, making it difficult to disengage. Even during vibration, the fan can remain securely connected, and even ensure power transmission between the vacuum cleaner and the fan.

[0026] Among them, Figures 5 to 10As shown, the vertical center of the housing 11 is provided with an air flow channel 15, and fan slots 16 are provided in the housing 11 and on both sides of the air flow channel 15. A power fan 62 is provided in the fan slot 16. Part of the fan blades of the power fan 62 extend into the air flow channel 15, and the rotating shaft of the power fan 62 drives the fan 12 through a transmission mechanism. The transmission mechanism is a mechanical power transmission mechanism, including a belt / toothed belt, a gear transmission component, etc. The air flow channel 15 is the dust collection power airflow formed during the operation of the vacuum cleaner. It is blown into the air flow channel 15 and directly discharged into the air, while it still carries the power of the air flow. Fan slots 16 are provided on both sides of the air flow channel and a power fan 62 is provided. The fan blades of the power fan partially extend into the air flow channel 62. Driven by the air flow, the power fan rotates the air flow, which plays the role of collecting waste kinetic energy and has the effect of energy saving and environmental protection. The kinetic energy obtained by the power fan is transmitted through the transmission mechanism to form the power that drives the fan to rotate.

[0027] Specifically, the transmission mechanism includes a support frame 65, an output gear 66 mounted at the end of the support frame, a transmission belt 63 that is wound around the axle of the output gear 66 and the rotating shaft of the power fan 62, and a transmission gear 26 disposed on the base 21 of the fan 12 and meshing with the output gear 66. The transmission gear 26 drives the blades of the fan 12 through a secondary transmission assembly. A sheave can be provided at one end of the rotating shaft of the power fan 62 to drive the transmission belt 63, which can be a belt or a toothed belt. This further drives the output gear 66, which in turn drives the meshed transmission gear 26, driving the fan to rotate, creating an airflow that blows over the wearer. A window 18 is provided at a corresponding position in the housing 11 for the output gear 66 to mesh with the transmission gear 26. The window 18 and the positioning holes 14 / 14a can be equipped with a cover that can be blocked when the fan is not in use, thereby maintaining the housing 11 in a sealed state.

[0028] The fan 12 can be connected to the power socket of the vacuum cleaner via a power cord, and the power supply can provide sufficient power to drive the fan 12. The electric drive can also be combined with the mechanical drive to achieve the effect of environmental protection and energy saving, and ensure sufficient wind power to cool the wearer.

[0029] Therefore, the fan 12 generally includes a conventional motor and blades, as well as a base 21 and a housing that surround and support the motor and blades. The bottom surface profile of the base is adapted to the side surface of the housing 11. By connecting a power source, the blades can be driven to rotate, thereby achieving air supply, heat dissipation, and cooling. In addition, for energy-saving purposes, a sub-transmission mechanism can be provided on the base 21 to transmit power between the output gear 66 and the blades. The sub-transmission mechanism includes a transmission gear 26 provided on the bottom surface of the base 21 and engageable with the output gear 66. The provision of the sub-transmission mechanism can achieve the effect of transmitting the energy collected inside the vacuum cleaner to the auxiliary components for use. The sub-transmission mechanism includes a commonly used gear transmission and belt transmission assembly to transmit rotational power.

[0030] Among them, the fastening hoop 13 is provided with a disconnect position and a connecting buckle to connect the disconnected ends, so that it can be easily disassembled and reinstalled, which is convenient for replacement and relieves the burden when the fan is not needed in winter; the fastening hoop 13 passes through the base of the fan to fix the fan, and the tightness can be adjusted to firmly install the fan 12, thereby preventing the fan from falling.

[0031] Preferably, the fan 12 has a through hole at a certain height from its bottom surface. The fastening ring 13 is a taut, flexible band that passes through the through hole, allowing the fan 12 to be securely fastened to the side of the housing 11 and to overcome the recoil force of the airflow when blowing. The fan 12 can be tilted slightly downward to slightly bias the airflow downward, thereby creating a partial upward buoyancy resistance, that is, a partial vertical upward component of force, thereby offsetting some of the gravity and reducing the burden on the wearer.

[0032] Furthermore, if Figure 2 、 Figure 3 、 Figure 5 As shown, the bottom surface of the fan 12 is provided with a hook piece 23 with one end connected to the base. A straight-line through-hole is formed between the hook piece 23 and the base 21 for the fastening hoop 13 to pass through. The lower end of the hook piece 23 is connected to the base 21, while the upper end is separated from the base. Therefore, the fastening hoop 13 can be easily inserted or slid out of the separation opening of the hook piece 23, making it more convenient to disassemble and install. Moreover, the fastening hoop 13 can be left unassembled during disassembly and assembly. In fact, a whole annular fastening hoop can even be used. The fastening hoop 13 can be slid out and inserted into the opening, that is, the fastening hoop 13 can be moved up and down to operate.

[0033] Furthermore, two fastening hoops 13 are provided to fix the base of the fan, making it more stable.

[0034] The housing 11 is provided with two sets of fan blades arranged vertically on both sides, which expands the vertical range of the airflow and improves the heat dissipation effect. The two fans on one side can have different left and right angles, with one fan on the lower side blowing slightly inward and the other fan blowing slightly outward, thereby providing more uniform heat dissipation to the waist and arms.

[0035] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A backpack vacuum cleaner capable of fanning air, characterized in that: The invention comprises a tower case, fans arranged on the left and right sides of the case, and a fastening ring hoop connecting the base of the fan and pressing the base against the side of the case. The base of the fan and the side of the case are positioned with each other and fit together in a rotation-proof and slip-proof manner.

2. The fan-operated backpack vacuum cleaner according to claim 1, characterized in that: An air flow channel is provided in the vertical central portion of the casing, and fan slots are provided in the casing and on both sides of the air flow channel. A power fan is provided in the fan slot, and partial blades of the power fan extend into the air flow channel. The rotating shaft of the power fan drives the fan through a transmission mechanism.

3. The backpack vacuum cleaner with fan function according to claim 2, characterized in that: The transmission mechanism includes a support frame, an output gear installed at the end of the support frame, a transmission belt that is wound around the axle of the output gear and the rotating shaft of the power fan for transmission, and a transmission gear that is provided at the base of the fan and meshes with the output gear. The transmission gear drives the fan blades to rotate through a secondary transmission assembly.

4. The backpack vacuum cleaner with fan function according to claim 1, characterized in that: The fan is plugged into a power socket of the vacuum cleaner via a power cord.

5. The fan-operated backpack vacuum cleaner according to claim 1, characterized in that: The fastening ring hoop is provided with a disconnection position and a connecting buckle to connect the disconnected ends; the fastening ring hoop passes through the base of the fan to fix the fan.

6. The backpack vacuum cleaner with fan function according to claim 5, characterized in that: The fan is provided with a straight through hole at a certain height from the bottom surface thereof, and the fastening hoop is a tight soft belt passing through the through hole.

7. The backpack vacuum cleaner with fan function according to claim 5, characterized in that: The bottom surface of the fan is provided with a hook piece with one end connected to the base, and a straight through hole is formed between the hook piece and the base for the fastening hoop to pass through.

8. The backpack vacuum cleaner with fan function according to claim 5, characterized in that: Two fastening hoops are provided to fix the base of the fan.

9. The backpack vacuum cleaner with fan function according to claim 1, characterized in that: Two groups of fan blades arranged up and down are provided on both sides of the casing.

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