Air blowing mechanism and garden air blower

Abstract

The utility model relates to the technical field of gardening tools, and particularly discloses an air blowing mechanism and a garden air blower. One end of the air supply pipeline is rotationally connected with the machine shell; a restraining piece is arranged on the machine shell or the accessory of the machine shell, and when the air supply pipeline rotates to a certain angle relative to the machine shell, the restraining piece is suitable for restraining the rotating position of the air supply pipeline. When the blowing mechanism is idle, the air supply pipeline is rotated to the vertical state (the central axis of the air supply pipeline is perpendicular to the bottom face of the machine shell), the position of the air supply pipeline is fixed through the restraining piece, the ground area occupied when the blowing mechanism is idle can be reduced, and the restrained air supply pipeline is far away from the ground and cannot be treaded by people unintentionally.

Description

Technical Field

[0001] This application relates to the technical field of garden tools, and particularly to a blowing mechanism and a garden blower. Background Art

[0002] Garden blowers are generally used to clean debris such as fallen leaves on the ground or in the garden. In the prior art, a backpack garden blower generally includes a housing carried on the user's back and a blowing duct rotatably connected to the housing. The blowing duct can adjust the blowing angle relative to the housing during use. Since the housing and the blowing duct are rotatably connected, when the backpack garden blower is idle, the blowing duct will basically adhere to the ground under its own gravity, which will cause problems such as a large floor area of the entire backpack garden blower and the blowing duct being accidentally stepped on by people. Utility Model Content

[0003] An object of at least one specific embodiment of the present utility model is to solve the defects existing in the prior art and provide a blowing mechanism and a garden blower.

[0004] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0005] A blowing mechanism, comprising:

[0006] A housing;

[0007] A blowing duct, one end of which is rotatably connected to the housing;

[0008] A restraint is provided on the housing or its accessory. When the blowing duct rotates relative to the housing to a certain angle, the restraint is adapted to restrain the position where the blowing duct rotates.

[0009] By adopting the above technical solution, the blowing duct and the housing are rotatably connected. When the blowing duct rotates to the required position, for example, there is more overlap between the blowing duct and the housing in a certain direction, reducing the occupied space of the blowing duct and the housing, and fixing the relative position of the blowing duct and the housing through the restraint, so that the blowing mechanism maintains a state of occupying a smaller space, facilitating the placement of the blowing mechanism.

[0010] Optionally, the blowing duct includes a bent pipe section and a straight pipe section connected to each other, and one end of the bent pipe section is rotatably connected to the air outlet of the housing.

[0011] Optionally, the blowing mechanism further includes a power source and a blower disposed in the housing, and the air outlet end of the blower faces the air outlet.

[0012] Optionally, the accessory is a backpack frame installed on one side of the housing, and the restraint is installed on the housing or the backpack frame.

[0013] Optionally, the restraint is a restraint band, and the restraint band is provided with Velcro or a buckle.

[0014] Optionally, the blowing mechanism includes a working state and an idle state;

[0015] In the working state, the restraint releases the restraint on the air supply duct, and the air supply duct can freely rotate around the housing;

[0016] In the idle state, the restraint binds and fixes the air supply duct to restrict the position where the air supply duct rotates.

[0017] Optionally, the central axis of the air supply duct is perpendicular to the bottom plane of the housing.

[0018] Optionally, the elbow section and the straight pipe section are fixedly connected in a detachable manner.

[0019] Optionally, the backrest is detachably installed on one side of the housing.

[0020] The beneficial technical effects of the blowing mechanism provided in this application compared with the prior art are as follows: The air supply duct of the blowing mechanism is rotatably connected to the housing, which is convenient for the blowing mechanism to change the air supply direction during use; when the blowing mechanism is idle, the air supply duct is rotated to a vertical state (the central axis of the air supply duct is perpendicular to the bottom surface of the housing), and the position of the air supply duct is fixed by the restraint, which can reduce the floor area occupied by the blowing mechanism when it is idle. Moreover, the restrained air supply duct is far from the ground and will not be accidentally stepped on by people.

[0021] Another technical solution adopted in this application is: to provide a garden blower, including the above-mentioned blowing mechanism.

[0022] After the garden blower provided in this application adopts the above-mentioned blowing mechanism, when the garden blower is idle, the air supply duct is rotated to a vertical state (the central axis of the air supply duct is perpendicular to the bottom surface of the housing), and the position of the air supply duct is fixed by the restraint, which can reduce the floor area occupied by the garden blower when it is idle. Moreover, the restrained air supply duct is far from the ground and will not be accidentally stepped on by people. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of this application, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the blowing mechanism of this application;

[0025] Figure 2 This is a schematic structural diagram of the blowing mechanism of the present application when it is in the working state;

[0026] Figure 3 This is a schematic structural diagram of the blowing mechanism of the present application when it is in the idle state;

[0027] Figure 4 This is a schematic structural diagram of the garden blower of the present application. Detailed implementation manners

[0028] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] As Figure 1 and Figure 2 shown, a blowing mechanism includes a housing 1 and a blowing duct 2 rotatably connected to the housing 1 at one end.

[0031] A restraint member 4 is provided on the housing 1 or its accessory 3 of the present application. When the blowing duct 2 rotates relative to the housing 1 to a certain angle, the restraint member 4 is adapted to restrain the position where the blowing duct 2 rotates.

[0032] In this embodiment, the accessory 3 is a backpack frame detachably installed on one side of the housing 1, and the restraint member 4 is a restraint strap installed on the housing 1 or the backpack frame 3. The restraint strap is provided with Velcro or a buckle. When the restraint strap restrains the blowing duct 2, the restraint strap is bundled and fixed on the outside of the blowing duct 2, and the restrained blowing duct 2 cannot rotate relative to the housing 1.

[0033] Furthermore, the blowing duct 2 includes a bent pipe section 21 and a straight pipe section 22 detachably connected. One end of the bent pipe section 21 is rotatably connected to the air outlet 11 of the housing 1. Specifically, the bent pipe section 21 can be rotatably connected to the air outlet 11 through a bearing, or two semi-circular sleeves can be sleeved on the air outlet 11. The two semi-circular sleeves wrap the end of the bent pipe section 21. An annular protrusion is provided on the outer periphery of the air inlet end of the bent pipe section 21, and an annular groove matching the annular protrusion is provided inside the semi-circular sleeve to realize the rotation of the bent pipe section 21.

[0034] Since the bent pipe section 21 mainly plays a role of rotational connection between the straight pipe section 22 and the housing 1, the length of the bent pipe section 21 is small and the length of the straight pipe section 22 is large. Therefore, the rotation angle of the straight pipe section 22 relative to the housing 1 can be regarded as the rotation angle of the blowing duct 2 relative to the housing 1.

[0035] Under normal circumstances, when the casing 1 is placed on the ground, the bottom surface 12 of the casing 1 contacts the ground 10. The ground 10 is set as the reference plane, and the central axis of the straight pipe section 22 is set as Z1. During the rotation of the air supply duct 2, the angle ɑ formed by the central axis Z1 relative to the ground 10 is the rotation angle of the air supply duct 2 relative to the casing 1;

[0036] Furthermore, a power supply and a fan are provided inside the casing 1. The air outlet end of the fan faces the air outlet 11. The blowing mechanism includes a working state and an idle state. When the blowing mechanism is in the working state, the restraint member 4 releases the restraint on the air supply duct 2, and the fan blows air into the air supply duct 2. When the air supply duct 2 is in the working state, it can freely reciprocate and rotate relative to the casing 1, so as to achieve the purpose of purging.

[0037] Refer to Figure 3 , when the blowing mechanism is in the idle state, in order to reduce the floor area of the entire mechanism, it is necessary to rotate the air supply duct 2 so that the central axis Z1 of the air supply duct 2 is perpendicular to the bottom plane of the casing 1. At this time, the angle ɑ formed by the central axis Z1 relative to the ground 10 is 90 degrees, and the air supply duct 2 is in a vertical state relative to the ground 10. At this time, the floor area of the casing 10 is the floor area of the entire blowing mechanism. Moreover, the restrained air supply duct 2 is far from the ground and will not be accidentally stepped on by people.

[0038] Embodiment 2

[0039] Furthermore, refer to Figure 4 , this application embodiment also discloses a garden blower, including the above-mentioned blowing mechanism. When the garden blower is idle, the air supply duct 2 is rotated to a vertical state (the central axis of the air supply duct 2 is perpendicular to the bottom surface of the casing 1), and the position of the air supply duct 2 is fixed by the restraint member 4, which can reduce the floor area occupied by the garden blower when it is idle. Moreover, the restrained air supply duct 2 is far from the ground and will not be accidentally stepped on by people.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blowing mechanism, comprising: A housing; A blowing duct, one end of which is rotatably connected to the housing; It is characterized in that a restraint is provided on the housing or its accessories, and when the blowing duct rotates relative to the housing to a certain angle, the restraint is adapted to restrain the position where the blowing duct rotates.

2. The hair blowing mechanism according to claim 1, characterized in that, The blowing duct includes a bent pipe section and a straight pipe section connected to each other, and one end of the bent pipe section is rotatably connected to the air outlet of the housing.

3. The blowing mechanism according to claim 2, characterized in that, It further includes a power source and a blower disposed in the housing, and the air outlet end of the blower faces the air outlet.

4. The hair blowing mechanism according to claim 1, wherein The accessory is a backpack frame installed on one side of the housing, and the restraint is installed on the housing or the backpack frame.

5. A blowing mechanism according to claim 1, characterized in that, The restraint is a restraint belt, and the restraint belt is provided with Velcro or a buckle.

6. A blowing mechanism according to claim 1 or 2, characterized in that, Including a working state and an idle state; In the working state, the restraint releases the restraint on the blowing duct, and the blowing duct can freely rotate around the housing; In the idle state, the restraint binds and fixes the blowing duct to restrain the position where the blowing duct rotates.

7. The hair blowing mechanism according to claim 6, wherein In the idle state, the central axis of the blowing duct is perpendicular to the bottom plane of the housing.

8. The blowing mechanism according to claim 2, characterized in that, The bent pipe section and the straight pipe section are fixedly connected in a detachable manner.

9. The hair blowing mechanism according to claim 4, wherein, The backpack frame is detachably installed on one side of the housing.

10. A garden blower, characterized in that, Including the blowing mechanism according to any one of claims 1-9.

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