Knapsack hair dryer capable of reducing vibration

Abstract

The invention belongs to the technical field of gardening tools, and relates to a backpack blower capable of reducing vibration, which comprises a back plate bracket, an engine, a fuel tank and an air pipe are arranged on the back plate bracket, a plurality of damping brackets are arranged on the back plate bracket, each damping bracket is connected with the same damping plate, the engine is arranged on the damping plate, and the fuel tank is arranged on the engine. A baffle is arranged at the top of the back plate bracket; the damping support comprises a first supporting plate, a second supporting plate and a connecting piece, and the first supporting plate is connected with the second supporting plate through the connecting piece. The engine is fixed to the back plate support through the damping support serving as a connecting piece, when the engine vibrates, the vibration support can absorb and weaken vibration energy, elasticity can be generated while vibration is absorbed through the elasticity of rubber, part of vibration energy can be counteracted through the elasticity of the rubber, and the damping effect of the engine is improved. Force generated by the engine in all directions can be absorbed and weakened, and the damping effect is enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of garden tools and relates to a backpack hair dryer with vibration reduction function. Background Art

[0002] Backpack hair dryers are mainly used for garden maintenance work. They can quickly clean up fallen leaves, sand and gravel and other garbage. Backpack hair dryers are equipped with gasoline-powered engines, and engine vibration becomes a new problem. Although the shoulder strap can reduce vibration to a certain extent, its shock absorption capacity is limited, and it is impossible for users to achieve a relatively relaxed effect when using a backpack hair dryer.

[0003] The existing Chinese patent with announcement number CN220079866U, a backpack hair dryer includes a gasket fixedly installed on the inner surface of a base, the lower left surface of the gasket is fixedly connected to a damping sleeve rod, the lower surface of the damping sleeve rod is fixedly connected to a rubber shock-absorbing plate, the lower surface of the gasket is fixedly connected to a first spring, the left surface of the base is fixedly connected to a slide rail, the slide rail is movably connected to a back frame, the upper surface of the slide rail is fixedly connected to a sleeve shock absorber, the inside of the sleeve shock absorber is fixedly connected to a second spring, and the upper surface of the sleeve shock absorber is fixedly connected to the back frame.

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

[0005] Currently, most backpack hair dryers use two-stroke or four-stroke engines. The vibration of the engine when it is working is not a unidirectional vibration. The crankshaft rotates 360°, and the thrust generated by the ignition work is not in the same direction. The above technical solution only designs shock absorption for the up and down movements, and uses the combination of damping and springs. Since the frequency of engine vibration is very high, the damping and spring cannot effectively absorb each vibration, so the shock absorption is not obvious. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide a backpack hair dryer with vibration reduction function, which is fixed by a specific installation method of the shock absorbing bracket and can effectively reduce the vibration of the engine in all directions.

[0007] The backpack hair dryer with vibration reduction function described in the present invention includes a back panel bracket, on which an engine, a fuel tank and an air duct are arranged, and a plurality of shock-absorbing brackets are arranged on the back panel bracket, each shock-absorbing bracket is connected to the same shock-absorbing plate, the engine is arranged on the shock-absorbing plate, and a baffle is also arranged on the top of the back panel bracket; the shock-absorbing bracket includes a first support plate, a second support plate and a connecting piece, and the first support plate is connected to the second support plate through the connecting piece.

[0008] Working process or working principle:

[0009] When in use, the vibration generated by the operation of the engine and the vibration caused by people walking on the road are transmitted to the shock-absorbing bracket through the shock-absorbing plate. The connecting parts of the shock-absorbing bracket absorb energy and move to consume and offset the vibration energy, thereby reducing the vibration.

[0010] The connecting piece is rectangular, and the middle part of the connecting piece is divided into two left and right cavities. Fillers are provided in the two cavities, and two connecting holes are provided on the fillers. The first support plate and the second support plate are provided with mounting holes corresponding to the connecting holes. Through installation, the connecting planes of the first support plate and the second support plate can be parallel, and when the first support plate or the second support plate moves, the internal filler absorbs energy and elasticity to weaken or offset the vibration of the engine.

[0011] The filler is in a rhombus shape, and the rhombus-shaped filler can make the first support plate and the second support plate present a certain angle, so that there is enough space to move when absorbing or releasing energy.

[0012] The filler is rubber.

[0013] A mounting block is connected to the top of the shock-absorbing plate, and a mounting groove is provided on the mounting block, which is compatible with the shock-absorbing bracket. A shock-absorbing bracket corresponding to the mounting groove is provided on the baffle plate. By connecting the shock-absorbing bracket on the baffle plate and the top of the shock-absorbing bracket, the shock-absorbing plate can be stabilized and fixed, and a multi-directional shock-absorbing effect can be achieved.

[0014] A support plate is provided at the bottom of the shock absorbing plate, and a support groove matched with the support plate is provided on the back plate bracket. The shock absorbing plate is supported by the support plate and the support groove at the bottom, avoiding the complete use of the shock absorbing bracket for fixing.

[0015] The support plate and the support groove are both semicircular, and the arc-shaped edges can reduce the friction loss to the filler when moving compared with polygons such as rectangles.

[0016] The supporting groove is filled with a rubber pad.

[0017] The fuel tank is connected to the oil pipe of the engine by a quick interface connection.

[0018] The fuel tank is movably connected to the back plate bracket, and a locking mechanism matched with the fuel tank is provided on the back plate bracket, and the fuel tank can be fixed by the locking mechanism.

[0019] The back plate bracket is provided with an auxiliary fuel tank assembly connected to the fuel tank, through which the auxiliary fuel tank assembly can realize rapid replacement and replenishment of fuel, which is convenient for long-distance work, reduces refueling time and improves work efficiency.

[0020] The auxiliary fuel tank assembly comprises an auxiliary fuel tank and a fixing groove arranged on a back plate bracket, in which a fuel tank connecting column adapted to the auxiliary fuel tank is arranged, and the fuel tank connecting column is connected to the fuel tank through an oil delivery pipe.

[0021] The auxiliary oil tank is provided with an oil filling port and an oil cover matching it, the bottom of the auxiliary oil tank is provided with an oil tank base matched with the fixed groove, the oil tank base is provided with an oil delivery hole corresponding to the oil tank connecting column, a plurality of guide columns are provided around the oil delivery hole in the oil tank base, a sealing column is slidably connected to the guide column, a concave platform corresponding to the oil tank connecting column is provided at the bottom of the sealing column, an oil baffle plate is fixedly connected to the sealing column near the lower position, and a sealing ring is fixedly connected to the outer ring of the oil baffle plate.

[0022] The inner diameter of the oil tank base is smaller than the inner diameter of the auxiliary oil tank, and a step is formed between the oil tank base and the auxiliary oil tank, which cooperates with the sealing ring and the oil baffle plate to achieve a sealing effect.

[0023] A guide rod is provided on the top of the sealing column, and the guide rod is slidably connected to the inner wall of the auxiliary oil tank. The guide rod is used to prevent the sealing column from being skewed when pressure is applied to the sealing column, resulting in poor sealing.

[0024] The oil cap is threadedly connected to the oil filling port, and a top column is arranged inside the oil cap. When the oil cap is tightened, the top column applies pressure to the sealing column to press it downward to achieve enhanced sealing.

[0025] The oil cover comprises a pressure sealing cavity and a sealing cavity, and the top column is arranged in the pressure sealing cavity.

[0026] A sealing pad is arranged on the guide column.

[0027] The back plate bracket is provided with a fixing buckle matched with the auxiliary oil tank.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention fixes the engine on the back plate bracket by using a shock-absorbing bracket as a connecting piece. When the engine vibrates, the vibration bracket can absorb and weaken the energy of the vibration. The elasticity of rubber is utilized to generate elasticity while absorbing the vibration. The elasticity of rubber can also offset part of the vibration energy. The up, down, left, right and multi-directional forces generated by the engine can also be absorbed and weakened, thereby enhancing the shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is one of the structural schematic diagrams of the present invention,

[0031] Figure 2 This is the second structural diagram of the present invention.

[0032] Figure 3 is a front view of the present invention,

[0033] Figure 4 is a schematic diagram of the structure of the backplane support in the present invention,

[0034] Figure 5 is a schematic diagram of the structure of the shock absorbing plate in the present invention,

[0035] Figure 6 is a schematic diagram of the structure of the shock-absorbing bracket in the present invention,

[0036] Figure 7 is a schematic diagram of the splitting of the shock-absorbing bracket in the present invention,

[0037] Figure 8 is a schematic diagram of the installation arrangement of the shock-absorbing bracket in Example 2 of the present invention,

[0038] Fig. 9 is a schematic diagram of a backplane support in Embodiment 3 of the present invention,

[0039] Fig.10 The present invention Fig. 9 A in the enlarged view,

[0040] Fig.11 is a schematic diagram of the structure of the auxiliary fuel tank in the present invention,

[0041] Fig.12 It is a schematic diagram of the internal structure of the auxiliary fuel tank in the present invention.

[0042] In the figure: 1. baffle; 2. mounting block; 3. engine; 4. fuel tank; 5. back plate bracket; 6. support groove; 7. support plate; 8. shock absorber plate; 9. air duct; 10. mounting groove; 11. first support plate; 12. connecting piece; 13. second support plate; 14. filler; 15. connecting hole; 16. mounting hole; 17. fixing buckle; 18. fixing groove; 19. oil pipeline; 20. connecting column; 21. oil cover; 22. top column; 23. auxiliary oil tank; 24. oil tank base; 25. sealing chamber; 26. pressure sealing chamber; 27. oil baffle plate; 28. sealing ring; 29. ​​sealing gasket; 30. guide column; 31. oil delivery hole; 32. concave platform; 33. sealing column; 34. guide rod; 35. oil filling port. DETAILED DESCRIPTION

[0043] Example 1

[0044] like Figure 1 to Figure 7As shown, the backpack hair dryer with reduced vibration of the present invention comprises a back plate bracket 5, on which an engine 3, a fuel tank 4 and an air duct 9 are arranged, and a plurality of shock absorbing brackets are arranged on the back plate bracket 5, each shock absorbing bracket is connected to the same shock absorbing plate 8, the engine 3 is arranged on the shock absorbing plate 8, and a baffle 1 is also arranged on the top of the back plate bracket 5; the shock absorbing bracket comprises a first support plate 11, a second support plate 13 and a connecting member 12, the first support plate 11 is connected to the second support plate 13 through the connecting member 12; the connecting member 12 is rectangular, and the middle part of the connecting member 12 is flat The first support plate 11 and the second support plate 13 are both provided with mounting holes 16 corresponding to the mounting holes 15. By installing, the connecting planes of the first support plate 11 and the second support plate 13 can be parallel to each other. When the first support plate 11 or the second support plate 13 moves, the internal filler 14 absorbs energy and elasticity to reduce or offset the vibration of the engine 3. The filler 14 is rhombus-shaped, and the rhombus-shaped filler 14 can make the first support plate 11 and the second support plate 13 present In a state of a certain angle, there is enough space to move when absorbing or releasing energy; the filler 14 is rubber; the top of the shock-absorbing plate 8 is connected to a mounting block 2, and the mounting block 2 is provided with a mounting groove 10 adapted to the shock-absorbing bracket, and the baffle 1 is provided with a shock-absorbing bracket corresponding to the mounting groove 10. By connecting the shock-absorbing bracket to the baffle 1 and the top of the shock-absorbing bracket, the shock-absorbing plate 8 can be stabilized and fixed, and a multi-directional shock-absorbing effect can be achieved; the bottom of the shock-absorbing plate 8 is provided with a support plate 7, and the back plate bracket 5 is provided with a support groove 6 adapted to the support plate 7. The support plate 7 and the support groove 6 at the bottom realize a support for the shock absorbing plate 8, avoiding the complete use of the shock absorbing bracket for fixing; the support plate 7 and the support groove 6 are both semicircular, and the arc edge can reduce the friction loss to the filler 14 when moving compared with polygons such as rectangles; the support groove 6 is filled with a rubber pad; the fuel tank 4 is connected to the oil pipe of the engine 3 by a quick interface connection; the fuel tank 4 is movably connected to the back plate bracket 5, and the back plate bracket 5 is provided with a locking mechanism compatible with the fuel tank 4, and the fuel tank 4 can be fixed by the locking mechanism.

[0045] Working process or working principle:

[0046] When in use, the vibration generated by the operation of the engine 3 and the bumps generated by people walking on the road are transmitted to the shock-absorbing bracket through the shock-absorbing plate 8, and the connecting piece 12 of the shock-absorbing bracket absorbs energy and moves to consume and offset the vibration energy, thereby reducing the vibration. When the shock-absorbing bracket is pushed by a force, the first support plate 11 and the second support plate 13 will squeeze and deform the filler 14 in the connecting piece 12, so that the first support plate 11 and the second support plate 13 are displaced, thereby reducing the vibration. At the same time, due to the connection between the first support plate 11 and the second support plate 13 and the connecting piece 12, when the first support plate 11 and the second support plate 13 move, they do not move in a straight line, but in an arc at a certain angle. When the shock-absorbing bracket is deformed when the engine 3 vibrates, the engine 3 will also move on the back plate bracket 5, and a certain vibration will be reduced during the movement, thereby reducing the vibration and achieving a shock-absorbing effect.

[0047] The present invention fixes the engine 3 on the back plate bracket 5 by using a shock-absorbing bracket as a connecting member 12. When the engine 3 vibrates, the vibration bracket can absorb and weaken the energy of the vibration, and utilizes the elasticity of rubber to generate elasticity while absorbing the vibration. The elasticity of rubber can also offset part of the vibration energy. The up, down, left, right and multi-directional forces generated by the engine 3 can also be absorbed and weakened, thereby enhancing the shock-absorbing effect.

[0048] Example 2

[0049] like Figure 8 As shown, different from Example 1, the baffle plate 1 in this embodiment is provided with two shock-absorbing brackets, and the back plate bracket 5 is provided with four shock-absorbing brackets. The first support plate 11 of the two shock-absorbing brackets on the baffle plate 1 is fixedly connected to the baffle plate 1, and one end of the first support plate 11 with the mounting hole 16 faces forward, and the first support plate 11 of the four shock-absorbing brackets on the back plate bracket 5 is fixedly connected to the back plate bracket 5, and one end of the first support plate 11 on the back plate bracket 5 with the mounting hole 16 faces upward, and each second support plate 13 is fixedly connected to the shock-absorbing plate 8 and the mounting groove 10 in a one-to-one correspondence; when the second support plate 13 on the baffle plate 1 moves, it moves in an arc shape downward and forward, and when the second support plate 13 on the back plate bracket 5 moves, it moves in an arc shape forward and upward. Therefore, when the shock-absorbing plate 8 moves forward, there will be downward and upward forces at the same time. Similarly, when the shock-absorbing plate 8 moves backward, there will be upward and downward forces at the same time. The shock-absorbing plate 8 is installed at a suitable position point so that it can be fixedly connected under such interference conditions.

[0050] Example 3

[0051] like Figures 9 to 12As shown, different from other embodiments, the back plate bracket 5 described in this embodiment is provided with a sub-tank 23 assembly connected to the fuel tank 4, and the sub-tank 23 assembly can realize rapid replacement and replenishment of fuel, which is convenient for long-distance work, reduces refueling time, and improves work efficiency; the sub-tank 23 assembly includes the sub-tank 23 and a fixing groove 18 arranged on the back plate bracket 5, and a tank connecting column 20 adapted to the sub-tank 23 is provided in the fixing groove 18, and the tank connecting column 20 is connected to the fuel tank 4 through an oil pipe 19; the sub-tank 23 is provided with an oil filling port 35 and an oil cover 21 matched therewith, and a tank base 24 adapted to the fixing groove 18 is provided at the bottom of the sub-tank 23, and an oil delivery hole 31 corresponding to the tank connecting column 20 is provided on the tank base 24, and a plurality of guide columns 30 are provided around the oil delivery hole 31 in the tank base 24, and a sealing column 33 is slidably connected to the guide column 30, and a concave platform corresponding to the tank connecting column 20 is provided at the bottom of the sealing column 33 32, the sealing column 33 is fixedly connected to an oil baffle plate 27 near the lower part, and the outer ring of the oil baffle plate 27 is fixedly connected to a sealing ring 28; the inner diameter of the oil tank base 24 is smaller than the inner diameter of the auxiliary oil tank 23, and a step is formed between the oil tank base 24 and the auxiliary oil tank 23, which cooperates with the sealing ring 28 and the oil baffle plate 27 to achieve a sealing effect; a guide rod 34 is provided on the top of the sealing column 33, and the guide rod 34 is slidably connected to the inner wall of the auxiliary oil tank 23, so as to avoid pressure on the sealing column 33 The oil cap 21 is threadedly connected to the oil filling port 35, and a top column 22 is provided in the oil cap 21. When the oil cap 21 is tightened, the top column 22 presses the sealing column 33 downward to strengthen the seal. The oil cap 21 includes a pressure sealing cavity 26 and a sealing cavity 25, and the top column 22 is arranged in the pressure sealing cavity 26. A sealing gasket 29 is provided on the guide column 30. A fixing buckle 17 adapted to the auxiliary oil tank 23 is provided on the back plate bracket 5.

[0052] Working process or working principle:

[0053] When refueling the empty auxiliary oil tank 23, the refueling gun extends into the oil outlet and presses down the sealing column 33, so that the sealing ring 28 of the oil baffle plate 27 is stuck on the steps of the auxiliary oil tank 23 and the oil tank base 24, and the sealing column 33 slides so that its bottom contacts the sealing gasket 29 to seal the space in the oil tank base 24, and then the refueling gun injects oil into the auxiliary oil tank 23. When the oil level exceeds the guide rod 34, the refueling is stopped and the refueling gun is pulled out. Since the oil baffle plate 27 bears the gravity of the oil during refueling, there will be no oil leakage. After that, the pressure sealing chamber 26 of the oil cover 21 is screwed onto the oil filling port 35, and the sealing effect is guaranteed by the pressure applied by the top column 22 and the thread; when in use, first unscrew the oil cover 21 and turn it over to seal the sealing chamber 25 The oil tank base 24 is then placed in the fixing groove 18 so that the connecting column 20 extends into the oil delivery hole 31 and contacts the recess 32 of the sealing column 33. Then, the auxiliary oil tank 23 is pressed downward so that the connecting column 20 pushes the sealing column 33 upward and drives the oil baffle plate 27 to rise so that the oil enters the oil tank base 24 and flows into the connecting column 20 through the gap between the sealing column 33 and the guide column 30, thereby realizing the connection with the fuel tank. Regarding the negative pressure generated by the auxiliary oil tank 23 during use, exhaust, the connection method between the connecting column 20 and the oil delivery pipe 19, the dustproof structure of the connecting column 20, the valve and other structures, and the possible existing technical problems, those skilled in the art can easily think of them and will not be repeated here.

[0054] The auxiliary oil tank 23 of the present invention can provide a convenient oil change method for long distances and inconvenient refueling. It is convenient to carry, quick and easy to replace, and has high replacement efficiency, which reduces refueling time, thereby reducing operation time and improving operation efficiency.

[0055] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A backpack hair dryer with reduced vibration, comprising a back plate bracket (5), on which an engine (3), a fuel tank (4) and an air duct (9) are arranged, characterized in that: The back plate bracket (5) is provided with a plurality of shock absorbing brackets, each of which is connected to the same shock absorbing plate (8), the engine (3) is arranged on the shock absorbing plate (8), and a baffle (1) is also provided on the top of the back plate bracket (5); The shock-absorbing bracket comprises a first support plate (11), a second support plate (13) and a connecting piece (12), wherein the first support plate (11) is connected to the second support plate (13) via the connecting piece (12).

2. The backpack hair dryer with reduced vibration according to claim 1, characterized in that: The connecting piece (12) is rectangular, and the middle part of the connecting piece (12) is equally divided into two left and right cavities, and fillers (14) are provided in the two cavities, and two connecting holes (15) are provided on the fillers (14), and the first support plate (11) and the second support plate (13) are both provided with mounting holes (16) corresponding to the connecting holes (15).

3. The backpack hair dryer with reduced vibration according to claim 2, characterized in that: The filler (14) is in a rhombus shape.

4. The backpack hair dryer with reduced vibration according to claim 3, characterized in that: The filler (14) is rubber.

5. The backpack hair dryer with reduced vibration according to claim 1, characterized in that: The top of the shock absorbing plate (8) is connected to a mounting block (2), the mounting block (2) is provided with a mounting groove (10) adapted to the shock absorbing bracket, and the baffle (1) is provided with a shock absorbing bracket corresponding one-to-one to the mounting groove (10).

6. The backpack hair dryer with reduced vibration according to any one of claims 1 to 5, characterized in that: A support plate (7) is provided at the bottom of the shock absorbing plate (8), and a support groove (6) matching with the support plate (7) is provided on the back plate bracket (5).

7. The backpack hair dryer with reduced vibration according to claim 6, characterized in that: The supporting plate (7) and the supporting groove (6) are both semicircular.

8. The backpack hair dryer with reduced vibration according to claim 7, characterized in that: The support groove (6) is filled with a rubber pad.

9. The backpack hair dryer with reduced vibration according to claim 1, characterized in that: The fuel tank (4) is connected to the oil pipe of the engine via a quick interface.

10. The backpack hair dryer with reduced vibration according to claim 9, characterized in that: The fuel tank (4) is movably connected to the back plate bracket (5), and the back plate bracket (5) is provided with a locking mechanism that is compatible with the fuel tank (4).

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