Garden backpack blower

Abstract

The present invention belongs to the technical field of garden tools and relates to a garden backpack blower, which includes a blower body. An engine is provided inside the blower body. The output end of the engine is connected to a first air duct. One end of the first air duct away from the engine is connected to a first bellows. One end of the first bellows away from the first air duct is connected to a second air duct. One end of the second air duct away from the first bellows is connected to a connecting pipe. A DC air duct and a shunt air duct are provided on the connecting pipe, and the shunt air duct is located below the DC air duct. A switching mechanism is arranged inside the second air duct, and the switching mechanism is used to switch the air outlet at one end of the connecting pipe. By setting the switching mechanism, the support mechanism and the heat dissipation system, technical effects such as multi-angle adjustment of the blowing direction, reduction of operation fatigue during long-term use, and extension of the service life of the engine are achieved. The switching mechanism is set to control the flow direction of the air and guide it to blow in various directions to meet the wind force output requirements in different regions and with different needs.

Description

Technical Field

[0001] The present invention belongs to the technical field of garden tools and relates to a garden backpack blower. Background Art

[0002] A garden backpack blower is a single-person backpack-operated device powered by a gasoline engine. It is mainly used in the fields of landscaping and lawn management. The blower drives the fan blades to rotate through the power of the gasoline engine, generating strong wind power for cleaning fallen leaves, branches and other sundries.

[0003] There is a Chinese invention patent with the publication number CN113005967A, a backpack blower, including: a backpack unit, on which a backpack strap is provided; an air outlet unit, arranged on one side of the backpack unit and connected to the backpack unit, and a fan blade is arranged in the air outlet unit; the backpack blower provided in this application can reduce the fatigue of users and improve work efficiency.

[0004] The prior art has the following technical defects:

[0005] When the above technical solution is in use, although it can reduce the fatigue of users, its blowing head is often of a fixed type. In practical applications, for example, when cleaning dead leaves and branches, a wide-angle blowing head needs to be replaced for use, and for sundries in a separate area, a DC blowing head needs to be replaced for use. However, the current blowing head replacement method is often too complex and inconvenient, and it is difficult to quickly switch the blowing head according to different environments and needs. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: when dealing with sundries in a separate area, a DC blowing head needs to be replaced for use, but the current blowing head replacement method is often too complex and inconvenient, and it is difficult to quickly switch the blowing head according to different environments and needs. To overcome the deficiencies of the prior art, a garden backpack blower is provided.

[0007] The garden backpack blower of the present invention includes a blower body. An engine is arranged inside the blower body. The output end of the engine is connected to a first air duct. The first air duct is sequentially connected to a first corrugated pipe, a second air duct and a connecting pipe. A DC air duct and a shunt air duct are arranged on the connecting pipe, and the shunt air duct is located below the DC air duct. A switching mechanism is arranged inside the second air duct, and the switching mechanism is used to switch the air outlet at one end of the connecting pipe.

[0008] Working Process or Principle:

[0009] The described switching mechanism includes a shunt cylinder, a partition plate, a first shunt groove, a second shunt groove, and a flow control component. The shunt cylinder is fixedly connected to the inner wall of the second air duct. The partition plate is fixedly connected to one end of the inner wall of the shunt cylinder close to the connecting pipe. Both the first shunt groove and the second shunt groove are formed inside the shunt cylinder, and the second shunt groove is located below the first shunt groove. The flow control component is arranged inside the shunt cylinder and is used to control the flow direction of the air inside the shunt cylinder.

[0010] The described flow control component includes a sliding cylinder, a first air outlet, a second air outlet, and a first elastic member. The sliding cylinder is slidably connected to the inner wall of the shunt cylinder. The first air outlet and the second air outlet are oppositely formed on the sliding cylinder, and the second air outlet is located below the first air outlet. The first elastic member is fixedly connected between the inner wall of the shunt cylinder and the sliding cylinder.

[0011] A first ring frame is fixedly connected to the first air duct. The bottom end of the first ring frame is fixedly connected to a fixed disk. The bottom end of the fixed disk is rotatably connected to a rotating disk. A limiting component is arranged on the fixed disk, and a supporting mechanism is arranged on the rotating disk. The supporting mechanism is used for supporting and connecting between the rotating disk and the second air duct.

[0012] The described limiting component includes a fixed frame, a first limiting rod, and a second elastic member. A plurality of fixed frames are fixedly connected to the top end of the fixed disk. A plurality of corresponding limiting holes are formed on both the fixed disk and the rotating disk. The first limiting rod is slidably connected to the inner wall of the fixed frame. One end of the first limiting rod close to the rotating disk is arc-shaped, and the end of the first limiting rod away from the fixed frame can penetrate the fixed disk and be inserted into the limiting hole of the rotating disk. The second elastic member is fixedly connected between the inner wall of the fixed frame and the first limiting rod.

[0013] The described supporting mechanism includes a wheel disk, a second ring frame, and a plugging component. The wheel disk is rotatably connected to the protruding part of the rotating disk. The second ring frame is fixedly connected to the wheel disk, and one end of the second ring frame away from the wheel disk is sleeved on the second air duct. The plugging component is arranged on the protruding part of the rotating disk.

[0014] A plurality of plugging holes are formed on the wheel disk. The plugging component includes a second limiting rod and a third elastic member. The second limiting rod is slidably connected to the protruding part of the rotating disk, and the second limiting rod can penetrate the rotating disk and be inserted into the plugging hole of the wheel disk. The third elastic member is sleeved on the second limiting rod, and the third elastic member is located between the outer wall of the rotating disk and the second limiting rod.

[0015] An electromagnetic valve is arranged on the first air duct. The electromagnetic valve is connected to the engine. A guide pipe is fixedly connected to the outer wall of the electromagnetic valve. One end of the guide pipe away from the electromagnetic valve is connected to the engine.

[0016] A guide frame is arranged at the top end of the electromagnetic valve. One end of the guide frame away from the electromagnetic valve is fixedly connected to a second corrugated pipe. One end of the second corrugated pipe away from the guide frame is fixedly connected to a guide head.

[0017] A connecting valve is installed on the flow guide frame, and the flow guide frame is located at a position close to the solenoid valve on the flow guide frame.

[0018] The second corrugated pipe is a shape-setable metal corrugated pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] By setting a switching mechanism, a supporting mechanism and a heat dissipation system in the garden backpack blower, the present invention realizes technical effects such as multi-angle adjustment of the blowing direction, reduction of operation fatigue during long-term use, and extension of the service life of the engine. On the one hand, the set switching mechanism controls the flow direction of the air, replaces manually replacing different blowing heads by changing the flow direction of the air, and guides the air to different directions by switching the air duct, so as to meet the wind force output in different regions and different requirements.

[0021] The set rotatable and adjustable supporting mechanism enables users to easily control the blowing direction and reduces the fatigue caused by long-term single-handed operation. In addition, a heat dissipation system is designed. By guiding a part of the air back into the engine for cooling, the damage caused by long-term high-temperature operation to the engine is effectively reduced, the service life is extended, and the body can be cooled when the weather is hot and when working is tiring, thereby improving the continuous operation duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention,

[0023] Figure 2 is a schematic structural diagram of the first air duct in the present invention,

[0024] Figure 3 is a partial structural sectional view of the second air duct in the present invention,

[0025] Figure 4 is a schematic structural diagram of the sliding cylinder in the present invention,

[0026] Figure 5 is a schematic structural diagram of the rotating disk in the present invention,

[0027] Figure 6 is a schematic structural diagram of the flow guide frame in the present invention.

[0028] In the figure: 1, hair dryer body; 2, shunt tube; 3, sliding tube; 4, first ring frame; 5, fixing frame; 6, wheel disc; 7, second limiting rod; 8, solenoid valve; 9, diversion frame; 10, second bellows; 11, engine; 12, first air duct; 13, first bellows; 14, second air duct; 15, connecting pipe; 16, DC air duct; 17, shunt air duct; 18, baffle plate; 19, first shunt groove; 20, second shunt groove; 21, first air outlet; 22, second air outlet; 23, first elastic member; 24, fixing disc; 25, rotating disc; 26, first limiting rod; 27, second elastic member; 28, second ring frame; 29, third elastic member; 30, diversion pipe; 31, diversion head; 32, connecting valve. Detailed implementation mode

[0029] Embodiment 1

[0030] As Figures 1 to 2 shown, the garden backpack hair dryer of the present invention includes a hair dryer body 1. An engine 11 is provided inside the hair dryer body 1. The output end of the engine 11 is connected to a first air duct 12. The first air duct 12 is successively connected to a first bellows 13, a second air duct 14 and a connecting pipe 15. A DC air duct 16 and a shunt air duct 17 are provided on the connecting pipe 15, and the shunt air duct 17 is located below the DC air duct 16. A switching mechanism is arranged inside the second air duct 14. The switching mechanism is used to switch the air outlet at one end of the connecting pipe 15; the switching mechanism includes a shunt tube 2, a baffle plate 18, a first shunt groove 19, a second shunt groove 20 and a flow control component. The shunt tube 2 is fixedly connected to the inner wall of the second air duct 14. The baffle plate 18 is fixedly connected to one end of the inner wall of the shunt tube 2 close to the connecting pipe 15. The first shunt groove 19 and the second shunt groove 20 are both opened inside the shunt tube 2, and the second shunt groove 20 is located below the first shunt groove 19. The flow control component is arranged inside the shunt tube 2. The flow control component is used to control the flow direction of the air inside the shunt tube; the flow control component includes a sliding tube 3, a first air outlet 21, a second air outlet 22 and a first elastic member 23. The sliding tube 3 is slidably connected to the inner wall of the shunt tube 2. The first air outlet 21 and the second air outlet 22 are oppositely opened on the sliding tube 3, and the second air outlet 22 is located below the first air outlet 21. The first elastic member 23 is fixedly connected between the inner wall of the shunt tube 2 and the sliding tube 3.

[0031] Working process or working principle:

[0032] When in use, the hair dryer body 1 serves as the main structure of the garden backpack hair dryer. A gripping handle can be installed on the second air duct 14 for convenient control of the blowing direction. The engine 11 is installed inside the hair dryer body 1 to drive the fan blades to blow air. The power of the engine 11 is set to three gears, namely, the first gear, the second gear and the third gear. The power of the first gear is less than the power of the second gear, and the power of the second gear is less than the power of the third gear. When blowing air on debris in a separate area, the engine 11 starts working in the first gear to drive the fan blades to blow air into the inside of the first air duct 12, and the wind flows along the first corrugated pipe 13 into the inside of the second air duct 14. The wind is introduced into the upper layer of the connecting pipe 15 by relying on the switching mechanism and flows to the DC air duct 16 for blowing out, which can be used for removing debris in a separate area through the DC air duct 16. When blowing air to a large area, the direct current duct 16 and the diverter duct 17 are blown out at the same time, so that the wide-angle blowing through the direct current duct 16 and the diverter duct 17 can be used to remove debris in a large area; when blowing air to a large area, the engine 11 starts the third gear to drive the fan blades to blow air, and the wind is introduced into the lower layer of the connecting pipe 15 by the switching mechanism to flow to the diverter duct 17 and blown out, so that the wide-angle blowing through the diverter duct 17 can be used to remove debris in a large area, which plays the role of freely and quickly switching different blowing heads according to different environments and needs, thereby improving the applicability of the garden backpack hair dryer; when the wind generated by the engine 11 enters the second air duct 14 to switch the flow direction, the first diverter slot on the diverter cylinder 2 19 and the second diverter slot 20 lead to the upper channel and the lower channel formed by the connecting pipe 15 and the baffle 18 respectively. When the power of the engine 11 is in the first gear, the flow control component opens the first diverter slot 19 and closes the second diverter slot 20, and the wind flows to the upper channel and is blown out from the DC air duct 16; when the power of the engine 11 is in the second gear, the flow control component opens the first diverter slot 19 and the second diverter slot 20 at the same time, and the wind flows to the upper channel and the lower channel from the DC air duct 16 and the diverter air duct 17 at the same time; when the power of the engine 11 is in the third gear, the flow control component closes the first diverter slot 19 and opens the second diverter slot 20, and the wind flows to the lower channel from the diverter air duct 17, which plays a role in controlling the flow direction of the wind; when the first diverter slot 19 is opened, the second diverter slot 20 is opened, and the wind flows to the lower channel from the diverter air duct 17, which plays a role in controlling the flow direction of the wind. When the air entering the tube 12 flows through the first bellows 13 and reaches the second air duct 14, the wind first enters the interior of the sliding cylinder 3. When the power of the engine 11 is in the first gear, the first air port 21 on the sliding cylinder 3 is connected with the upper channel through the first diverter groove 19, and the second diverter groove 20 is in a state of being blocked and closed by the sliding cylinder 3. The wind flows to the upper channel and is blown out from the DC air duct 16; when the power of the engine 11 is in the second gear, the first air port 21 on the sliding cylinder 3 is connected with the upper channel through the first diverter groove 19, and the second air port 22 is connected with the lower channel through the second diverter groove 20. The first elastic member 23 is slightly squeezed and contracted by the sliding cylinder 3, and the wind flows to the upper and lower channels and is blown out from the DC air duct 16 and the diverter air duct 17.When the power of the engine 11 is in the third gear, at this time, the second air vent 22 on the sliding cylinder 3 is communicated with the lower layer channel through the second diversion groove 20, the first diversion groove 19 is in a state of being blocked and closed by the sliding cylinder 3, the first elastic member 23 is strongly squeezed and contracted by the sliding cylinder 3 to be stressed, and the air flows to the lower layer channel and blows out from the diversion air pipe 17, playing a role in controlling the air switching flow inside the second air pipe 14.

[0033] Embodiment 2

[0034] As Figures 1 to 3 、 Figure 5 shown, different from Embodiment 1, in this embodiment, a first ring frame 4 is fixedly connected to the first air pipe 12. A fixed disk 24 is fixedly connected to the bottom end of the first ring frame 4. A rotating disk 25 is rotatably connected to the bottom end of the fixed disk 24. A limiting component is arranged on the fixed disk 24, and a supporting mechanism is arranged on the rotating disk 25. The supporting mechanism is used for supporting and connecting between the rotating disk 25 and the second air pipe 14; the limiting component includes a fixed frame 5, a first limiting rod 26 and a second elastic member 27. A plurality of fixed frames 5 are fixedly connected to the top end of the fixed disk 24. A plurality of corresponding limiting holes are formed in both the fixed disk 24 and the rotating disk 25. The first limiting rod 26 is slidably connected to the inner wall of the fixed frame 5. One end of the first limiting rod 26 close to the rotating disk 25 is arc-shaped, and the end of the first limiting rod 26 far from the fixed frame 5 can penetrate through the fixed disk 24 and be inserted into the limiting hole of the rotating disk 25. The second elastic member 27 is fixedly connected between the inner wall of the fixed frame 5 and the first limiting rod 26; the supporting mechanism includes a wheel disk 6, a second ring frame 28 and a plugging component. The wheel disk 6 is rotatably connected to the protruding part of the rotating disk 25. The second ring frame 28 is fixedly connected to the wheel disk 6, and one end of the second ring frame 28 far from the wheel disk 6 is sleeved on the second air pipe 14. The plugging component is arranged on the protruding part of the rotating disk 25. The plugging component is used for limiting the rotation angle of the wheel disk 6; a plurality of plugging holes are formed in the wheel disk 6. The plugging component includes a second limiting rod 7 and a third elastic member 29. The second limiting rod 7 is slidably connected to the protruding part of the rotating disk 25, and the second limiting rod 7 can penetrate through the rotating disk 25 and be inserted into the plugging hole of the wheel disk 6. The third elastic member 29 is sleeved on the second limiting rod 7, and the third elastic member 29 is located between the outer wall of the rotating disk 25 and the second limiting rod 7.

[0035] Working process or working principle:

[0036] When in use, since it is easy to cause physical fatigue due to long-term single-handed operation to control the blowing direction, the first ring frame 4 is used to fix and support the fixed disk 24 on the first air duct 12, and the support mechanism connected to the rotating disk 25 is fixed on the second air duct 14. Rotating the rotating disk 25 left and right and cooperating with the flexibility of the first corrugated pipe 13 can adjust the blowing direction at the front end of the second air duct 14, and the limiting component is used to limit the rotating disk 25, and synchronously fix the blowing direction, replacing the way of holding and controlling the blowing direction with a single hand for a long time, and reducing the fatigue caused by long-term use of the garden backpack blower; when rotating the rotating disk 25 left and right to adjust the blowing direction, a plurality of first limiting rods 26 penetrate through the limiting holes of the fixed disk 24 under the elastic support of a plurality of second elastic members 27, and the arc-shaped ends of the plurality of first limiting rods 26 are inserted into the limiting holes of the rotating disk 25. As the rotating disk 25 is rotated and adjusted, the limiting holes of the rotating disk 25 squeeze the arc-shaped ends of the plurality of first limiting rods 26, and the plurality of first limiting rods 26 are squeezed and slide upward on the inner walls of the plurality of fixing frames 5 until the plurality of first limiting rods 26 correspond to other limiting holes on the rotating disk 25 again. The plurality of second elastic members 27 respectively squeeze the plurality of first limiting rods 26 and snap into the limiting holes of the rotating disk 25, so as to play a role in limiting the rotation direction of the rotating disk 25; when adjusting the blowing direction at the front end of the second air duct 14 up and down, the wheel disk 6 is rotated up and down on the protruding part of the rotating disk 25, and the wheel disk 6 synchronously drives the second air duct 14 sleeved by the second ring frame 28 to adjust the blowing direction. After adjusting the blowing direction, the rotation angle of the wheel disk 6 is limited by the plugging component, and the up and down adjustment of the blowing direction can be completed; when the wheel disk 6 is rotated up and down to adjust the blowing direction, first pull the second limiting rod 7 inserted into the plugging hole of the wheel disk 6, and the third elastic member 29 is stretched and stressed. After adjusting the rotation angle of the wheel disk 6, release the second limiting rod 7, and the third elastic member 29 rebounds elastically to drive the second limiting rod 7 to penetrate through the protruding part of the rotating disk 25 and plug into other plugging holes of the wheel disk 6 for limiting, playing a role in limiting the up and down rotation angle of the wheel disk 6.

[0037] Embodiment 3

[0038] As Figures 1 to 3 、 Figure 6 shown, different from other embodiments, in this embodiment, an electromagnetic valve 8 is provided on the first air duct 12, the electromagnetic valve 8 is connected to the engine 11, a diversion pipe 30 is fixedly connected to the outer wall of the electromagnetic valve 8, and one end of the diversion pipe 30 away from the electromagnetic valve 8 is connected to the engine 11; a diversion frame 9 is provided at the top of the electromagnetic valve 8, one end of the diversion frame 9 away from the electromagnetic valve 8 is fixedly connected to a second corrugated pipe 10, and one end of the second corrugated pipe 10 away from the diversion frame 9 is fixedly connected to a diversion head 31; a communication valve 32 is installed on the diversion frame 9, and the diversion frame 9 is located at a position close to the electromagnetic valve 8 on the diversion frame 9.

[0039] Working process or principle:

[0040] When the engine 11 works to drive the fan to blow air, since the engine 11 is prone to high-temperature operation and reduced service life when operating at the third gear power for a long time, the solenoid valve 8 is connected to the first air duct 12, and the solenoid valve 8 is connected to the engine 11 inside the hair dryer body 1 through the diversion pipe 30. When the engine 11 operates at the third gear power, it can synchronously send an electrical signal to the total controller. The total controller controls the solenoid valve 8 to open, and part of the air entering the first air duct 12 enters the solenoid valve 8 and the diversion pipe 30 and returns to the engine 11 for heat dissipation work on the engine 11, reducing the harm caused by the long-term high-temperature operation of the engine 11. At the same time, when the temperature of the engine 11 rises above the set value during operation, the solenoid valve 8 will also be opened to dissipate heat from the engine 11; when the weather is hot and the staff uses the garden backpack hair dryer for a long time, due to the dual influence of the weather and long-term work, the staff is prone to getting hot and sweating severely, which affects the continuous progress of the work. The diversion frame 9 is connected to the solenoid valve 8, and the second bellows 10 cooperates with the diversion head 31 to adjust to a suitable blowing angle, and the blowing direction of the diversion head 31 is aligned with the part of the body that needs to be blown for cooling. After the solenoid valve 8 is opened for the incoming air inside the first air duct 12, part of the air enters the diversion frame 9 and the second bellows 10 and reaches the diversion head 31 for blowing, which can dissipate heat from a local area of the body and increase the continuous operation time; when using the diversion pipe 30 to dissipate heat from the engine 11, if it is not necessary to dissipate heat from a local area of the body through the diversion head 31, the communication valve 32 can be rotated to control the communication state of the internal channel of the diversion frame 9, block the internal channel of the diversion frame 9, and when the diversion head 31 needs to be used, rotate the communication valve 32 in the reverse direction to open the internal channel of the diversion frame 9, realizing the function of controlling the communication of the internal channel of the diversion frame 9.

[0041] In the garden backpack hair dryer of the present invention, by setting a switching mechanism, a supporting mechanism and a heat dissipation system in the garden backpack hair dryer, technical effects such as multi-angle adjustment of the blowing direction, reduction of operation fatigue during long-term use, and extension of the engine service life are achieved. On the one hand of the garden backpack hair dryer, the set switching mechanism can guide the air to blow in various directions by controlling the air flow direction, meeting the wind power output requirements of different regions and different needs. The rotatable and adjustable supporting mechanism enables the user to easily control the blowing direction and reduces the fatigue caused by long-term single-handed operation. In addition, a heat dissipation system is designed. By guiding part of the air back into the engine for cooling, the damage caused by long-term high-temperature operation to the engine is effectively reduced, the service life is extended, and the body can be cooled when the weather is hot and the work is tiring, increasing the continuous operation time.

[0042] In the present invention, the description of the direction and relative position relationship of the structure, such as the description of front, back, left, right, up and down, does not constitute a limitation to the present invention, but is only for convenience of description.

Claims

1. A garden backpack blower, characterized in that: It includes a hair dryer body (1). An engine (11) is provided inside the hair dryer body (1). The output end of the engine (11) is connected to a first air duct (12). The first air duct (12) is sequentially connected to a first corrugated pipe (13), a second air duct (14), and a connecting pipe (15). A DC air duct (16) is provided on the connecting pipe (15). A shunt air duct (17) is also provided on the connecting pipe (15). The shunt air duct (17) is located below the DC air duct (16). A switching mechanism is arranged inside the second air duct (14). The switching mechanism is used to switch the air outlet at one end of the connecting pipe (15). The switching mechanism includes a shunt cylinder (2), a partition plate (18), a first shunt groove (19), a second shunt groove (20), and a flow control component. The shunt cylinder (2) is fixedly connected to the inner wall of the second air duct (14). The partition plate (18) is fixedly connected to one end of the inner wall of the shunt cylinder (2) close to the connecting pipe (15). Both the first shunt groove (19) and the second shunt groove (20) are opened inside the shunt cylinder (2), and the second shunt groove (20) is located below the first shunt groove (19). The flow control component is arranged inside the shunt cylinder (2). The flow control component includes a sliding cylinder (3), a first air outlet (21), a second air outlet (22), and a first elastic member (23). The sliding cylinder (3) is slidably connected to the inner wall of the shunt cylinder (2). The first air outlet (21) and the second air outlet (22) are oppositely opened on the sliding cylinder (3), and the second air outlet (22) is located below the first air outlet (21). The first elastic member (23) is fixedly connected between the inner wall of the shunt cylinder (2) and the sliding cylinder (3). A first ring frame (4) is fixedly connected to the first air duct (12). The bottom end of the first ring frame (4) is fixedly connected to a fixed disk (24). The bottom end of the fixed disk (24) is rotatably connected to a rotating disk (25). A limiting component is arranged on the fixed disk (24). A supporting mechanism is arranged on the rotating disk (25). The supporting mechanism is used for supporting and connecting between the rotating disk (25) and the second air duct (14).

2. The garden backpack blower according to claim 1, wherein: A solenoid valve (8) is provided on the first air duct (12). The solenoid valve (8) is connected to the engine (11). A diversion pipe (30) is fixedly connected to the outer wall of the solenoid valve (8). The end of the diversion pipe (30) far from the solenoid valve (8) is connected to the engine (11).

3. The garden backpack hair dryer according to claim 2, characterized in that: A diversion frame (9) is provided at the top end of the solenoid valve (8). The end of the diversion frame (9) far from the solenoid valve (8) is fixedly connected to a second corrugated pipe (10). The end of the second corrugated pipe (10) far from the diversion frame (9) is fixedly connected to a diversion head (31).

4. The garden backpack hair dryer according to claim 3, characterized in that: The second corrugated pipe (10) is a shape - fixable metal corrugated pipe.

5. The garden backpack blower according to claim 4, wherein: A communication valve (32) is installed on the diversion frame (9). The diversion frame (9) is located at a position on the diversion frame (9) close to the solenoid valve (8).

Images