Lawn mower

Abstract

The present invention provides a lawn mower, which includes a housing, a power assembly, and a cutting blade driven by the power assembly, wherein the housing includes a body, a rear cover plate pivotally connected to the rear of the body, and a partition portion that divides the body into a cutting chamber and a grass collecting chamber, wherein the partition portion includes a baffle plate, and the rear cover plate drives the baffle plate to move left and right by flipping up and down, thereby realizing the connection and separation between the cutting chamber and the grass collecting chamber. Compared with the prior art, the present invention is provided with a partition portion, and the baffle plate is driven to move left and right by flipping up and down the rear cover plate, thereby realizing the connection and separation between the cutting chamber and the grass collecting chamber, and the operation is convenient and the structure is simple.

Description

Technical Field

[0001] The invention relates to the technical field of electric tools, and in particular to a lawn mower used for lawn care. Background Art

[0002] With the continuous development of power tool technology, lawn mowers have been used more and more widely. Lawn mowers are mainly used in garden decoration pruning, lawn greening pruning, urban streets, green scenic spots, garden pruning, field weeding, especially lawns in parks, grasslands, football fields and other grass fields. After the lawn mower cuts the grass, the grass clippings need to be processed. There are four common grass clipping processing modes: ground covering type, side discharge type, grass collection type and mulching type. The ground covering type discharges the grass clippings at the bottom of the lawn mower, the side discharge type discharges the grass clippings at the side of the lawn mower, and the grass collection type and mulching type both discharge the grass clippings at the rear of the lawn mower.

[0003] In order to switch between the above four processing modes, the existing lawn mower needs to manually assemble and disassemble the relevant parts on the lawn mower. However, on the one hand, manual operation is time-consuming and laborious for the operator; on the other hand, the disassembled parts are easily lost, thus causing unnecessary losses.

[0004] In view of this, it is necessary to provide a lawn mower to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a lawn mower which is easy to operate and has a simple structure.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A lawn mower comprises a cover, a power assembly and a working assembly driven by the power assembly, wherein the cover comprises a body, a rear cover pivotally connected to the rear of the body and a partition portion for dividing the body into a cutting chamber and a grass collecting chamber, wherein the partition portion comprises a baffle plate, and the rear cover plate drives the baffle plate to move left and right by turning up and down, thereby realizing the connection and separation between the cutting chamber and the grass collecting chamber.

[0008] As a further improved technical solution of the present invention, the rear cover rotates between a first position and a second position, and a rear notch is opened at the rear of the grass collecting chamber; when the rear cover is flipped upward to the first position, the rear notch is opened; when the rear cover is flipped downward to the second position, the rear notch is closed.

[0009] As a further improved technical solution of the present invention, when the rear cover is flipped to the first position, the baffle moves to the third position, and the cutting chamber is connected to the grass collecting chamber; when the rear cover is flipped to the second position, the baffle moves to the fourth position, and the cutting chamber is separated from the grass collecting chamber.

[0010] As a further improved technical solution of the present invention, a side opening is provided on one side of the cutting chamber, and a reversible side cover plate and a detachable side exhaust pipe are provided at the side opening.

[0011] As a further improved technical solution of the present invention, the baffle is linked with the rear cover through a transmission assembly, and the transmission assembly includes a rotating shaft arranged on the rear cover, a gear bar arranged on the baffle, and a transmission member arranged in the grass collecting chamber.

[0012] As a further improved technical solution of the present invention, the transmission member includes a housing, an input gear arranged in the housing, an output gear and an intermediate gear located between the input gear and the output gear, the input gear is sleeved on a rotating shaft, the output gear is coupled to a gear bar, and the longitudinal axis of the rotating shaft and the output gear are arranged perpendicular to each other.

[0013] As a further improved technical solution of the present invention, the input gear and the intermediate gear are a pair of matching bevel gears, and there are two opposing friction surfaces between the intermediate gear and the output gear; a gasket and a spring are provided under the output gear, the gasket is located between the output gear and the spring, and the spring is located between the housing and the gasket.

[0014] As a further improved technical solution of the present invention, the rear cover is pivotally connected to the body via a rotating shaft, a spring is sleeved on the rotating shaft, and the spring is located between the rear cover and the body.

[0015] As a further improved technical solution of the present invention, it further includes a limiting component, which includes a limiting groove arranged below the baffle and a hook arranged in the grass collecting cavity and cooperating with the limiting groove.

[0016] As a further improved technical solution of the present invention, it further comprises a grass collecting bag, and when the rear cover plate is in the first position, the grass collecting bag is assembled to the rear notch of the grass collecting cavity.

[0017] As a further improved technical solution of the present invention, the main body includes a fixing portion and a partition, and the partition and the baffle form the partition portion; when the baffle moves to the third position, the partition and the baffle overlap; when the baffle moves to the fourth position, the partition and the baffle are staggered.

[0018] As a further improved technical solution of the present invention, a slideway is provided on the fixing portion, and sliders are provided at the upper and lower ends of the baffle, and the sliders are installed in the slideway and move along the slideway.

[0019] The beneficial effects of the present invention are as follows: a partition is provided, and the baffle is driven to move left and right by turning the rear cover up and down, thereby realizing the connection and separation between the cutting chamber and the grass collecting chamber, and the operation is convenient and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the lawn mower of the present invention.

[0021] Figure 2 Another perspective view of the lawn mower of the present invention.

[0022] Figure 3 It is a schematic diagram of the state when the baffle of the present invention moves to the third position.

[0023] Figure 4 It is a schematic diagram of the state when the baffle of the present invention moves to the fourth position.

[0024] Figure 5 It is a three-dimensional diagram of the fixing part of the present invention.

[0025] Figure 6 It is a three-dimensional diagram of the baffle of the present invention.

[0026] Figure 7 It is a three-dimensional exploded view of the main body of the present invention.

[0027] Figure 8 It is a partial schematic diagram of the transmission assembly of the present invention.

[0028] Fig. 9 It is a schematic diagram of the state when the rear cover of the present invention is flipped to the first position.

[0029] Fig.10 It is a schematic diagram of the state when the rear cover plate of the present invention is flipped to the second position.

[0030] Fig.11 This is a schematic diagram of the lawn mower of the present invention after the grass collecting bag is assembled. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Combination Figure 1 and Figure 2 As shown, the lawn mower of the present invention comprises a housing 10, an energy component (not shown) installed in the housing 10, a power component (not shown) powered by the energy component, and a cutting blade 20 driven by the power component. The lawn mower can switch between four grass cutting processing modes, is easy to operate, and has a simple structure.

[0033] Combination Figure 2 and Figure 4As shown, the housing 10 includes a body 1, a partition 2, a rear cover 3, a transmission assembly 4 and a limit assembly 5. The body 1 includes a fixed portion 11 located at the rear thereof, and the fixed portion 11 includes a partition 111, and the partition 111 is an arc wall. In this embodiment, the partition 111 and the fixed portion 11 are integrally formed. The partition 2 is formed by the partition 111 and a baffle 21 slidably arranged on the fixed portion 11. The partition 2 divides the body 1 into a cutting chamber 12 and a grass collecting chamber 13, and the fixed portion 11 constitutes a part of the cutting chamber 12. The baffle 21 is also an arc wall, which is conducive to the partition 2 and the body 1 to form an arc-shaped cutting chamber 12. The arc-shaped cutting chamber 12 is conducive to further grass cutting in the ground covering treatment mode and the smoothness of the grass cutting discharge in the side discharge treatment mode, the grass collecting treatment mode, and the covering treatment mode.

[0034] Combination Figure 3 , Figure 5 and Figure 6 As shown, a slideway 112 is provided on the fixing portion 11, and sliders 211 are provided at the upper and lower ends of the baffle 21. The sliders 211 are installed in the slideway 112, so that the baffle 21 moves between the third position and the fourth position along the slideway 112. When the baffle 21 moves to the third position, the partition 111 overlaps with the baffle 21, and the cutting chamber 12 is connected with the grass collecting chamber 13; when the baffle 21 moves to the fourth position, the partition 111 is staggered with the baffle 21, and the cutting chamber 12 is separated from the grass collecting chamber 13.

[0035] Combination Figure 2 and Figure 7 As shown, the cutting chamber 12 is quasi-circular and is surrounded by the body 1 and the partition 2. A cutting blade 20 protruding from the body 1 is provided below the cutting chamber 12. A side opening 121 is provided on one side of the cutting chamber 12. A reversible side cover 122 and a detachable side discharge pipe 123 are provided at the side opening 121. The side cover 122 is flipped up to expose the side opening 121, and then the side discharge pipe 123 is installed, so that a channel for discharging grass clippings to the side of the lawn mower is formed. The grass collecting chamber 13 is located at the rear of the cutting chamber 12, and is surrounded by the body 1, the partition 2 and the rear cover 3. A rear notch 131 is provided at the rear of the grass collecting chamber 13, and the rear cover 3 can realize the opening and closing of the rear notch 131.

[0036] Combination Figure 2 , Fig. 9 and Fig.10As shown, the rear cover 3 is pivotally connected to the body 1 through a rotating shaft 41 provided on the body 1, so that the rear cover 3 can rotate between the first position and the second position. Specifically, when the rear cover 3 flips upward to the first position, the rear notch 131 is opened; when the rear cover 3 flips downward to the second position, the rear notch 131 is closed. At the same time, when the rear cover 3 is abutted against the rear notch 131, a narrow and long outlet 132 is formed at a position of the rear cover 3 close to the bottom surface of the body 1, and the outlet 132 is used for discharging the broken grass after entering the grass collecting chamber 13. In addition, a spring 31 is sleeved on the rotating shaft 41, and the spring 31 is located between the rear cover 3 and the body 1. The spring 31 is a torsion spring, which always applies a downward force to the rear cover 3.

[0037] At the same time, the rear cover 3 is linked with the baffle 21 through the transmission assembly 4, so that the rear cover 3 drives the baffle 21 to move left and right by flipping up and down, thereby realizing the connection and separation of the cutting chamber 12 and the grass collecting chamber 13. Specifically, when the rear cover 3 is flipped to the first position, the baffle 21 moves to the third position, and the cutting chamber 12 is connected with the grass collecting chamber 13; when the rear cover 3 is flipped to the second position, the baffle 21 moves to the fourth position, and the cutting chamber 12 is separated from the grass collecting chamber 13.

[0038] Combination Figure 3 and Figure 8 As shown, the transmission assembly 4 includes a rotating shaft 41 disposed on the rear cover 3, a gear bar 42 disposed on the baffle 21, and a transmission member 43 disposed in the grass collecting chamber 13. The transmission member 43 includes a housing 431, an input gear 432 disposed in the housing 431, an output gear 433, and an intermediate gear 434 located between the input gear 432 and the output gear 433. The input gear 432 is sleeved on the rotating shaft 41, and the output gear 433 is coupled to the gear bar 42.

[0039] The longitudinal axis of the rotating shaft 41 and the output gear 433 are arranged perpendicular to each other, so that the up and down turning of the rear cover plate 3 is converted into the left and right movement of the baffle plate 21. The input gear 432 and the intermediate gear 434 are a pair of matching bevel gears, and there are two opposite friction surfaces 435 and 436 between the intermediate gear 434 and the output gear 433, and the friction surfaces 435 and 436 are preferably wavy. A gasket (not shown) and a spring 437 are arranged below the output gear 433. The gasket is located between the output gear 433 and the spring 437 to reduce the friction between the spring 437 and the output gear 433; the spring 437 is located between the housing 431 and the gasket to push the friction surface 436 of the output gear 433 to fit with the friction surface 435 of the intermediate gear 434, so that relative movement can occur between the intermediate gear 434 and the output gear 433 when subjected to external force.

[0040] Combination Figure 4 and Figure 6As shown, the limiting assembly 5 includes a limiting groove 51 disposed below the baffle 21 and a hook 52 disposed in the grass collecting chamber 13 and cooperating with the limiting groove 51. When the hook 52 is located in the limiting groove 51 and locked, the flipping of the rear cover 3 cannot drive the movement of the baffle 21; when the hook 52 is separated from the limiting groove 51 and not locked, the flipping of the rear cover 3 can drive the movement of the baffle 21.

[0041] When the ground covering treatment mode is adopted, the side cover 122 is used to block the side opening 121, and the rear cover 3 is flipped to the second position and drives the baffle 21 to move to the fourth position. Specifically, the cutting blade 20 cuts the grass into pieces, and the grass pieces enter the cutting chamber 12 and are cut again in a cycle in the cutting chamber 12 to further crush the grass pieces; at the same time, the crushed grass clippings are directly discharged from the bottom of the cutting chamber 12. This treatment mode is convenient and simple to operate, and the grass pieces can be used as fertilizer to nourish the lawn.

[0042] When the side discharge treatment mode is adopted, the side cover 122 is flipped up to expose the side opening 121, the upper side discharge channel 123 is assembled, the rear cover 3 is flipped to the second position and the baffle 21 is driven to move to the fourth position. Specifically, the cutting blade 20 chops the grass, and the grass fragments enter the cutting chamber 12 and are discharged from the cutting chamber 12 through the side opening 121. In this treatment mode, the grass fragments can be concentratedly discharged on one side at a fixed distance from the mower; when the mower is pushed to work, the grass fragments can be neatly discharged in a straight line or curve. This mode is more suitable for caring for narrow and long lawns.

[0043] When the covering treatment mode is adopted, the side cover 122 is used to block the side opening 121, and then the baffle 21 is removed, and the rear cover 3 is flipped to the second position; or the side cover 122 is used to block the side opening 121, and the rear cover 3 is flipped to the first position, at which time the baffle 21 moves to the third position, and then the baffle 21 is locked by the hook 52, and then the rear cover 3 is flipped to the second position. Since the baffle 21 is locked on the body 1 at this time, the intermediate gear 434 and the output gear 433 rotate relative to each other, and the baffle 21 is still fixed in the third position. Specifically, the cutting blade 20 cuts the grass into pieces, and the grass pieces enter the grass collecting chamber 13 through the cutting chamber 12 and are discharged from the grass collecting chamber 13 through the outlet 132. With this treatment mode, the grass pieces can be evenly discharged from the outlet 132; in the process of pushing the lawn mower, the grass pieces are evenly spread on the lawn surface, which is more beautiful. After completing this mode of operation, it is only necessary to flip the rear cover 3 to the first position and then unlock the hook 52.

[0044] Please refer to Fig.11As shown, when the grass collecting treatment mode is adopted, the side cover 122 is used to block the side opening 121 and the grass collecting bag 30 is assembled to the rear notch 131 of the grass collecting chamber 13, and the rear cover 3 is flipped to the first position and drives the baffle 21 to move to the third position. Specifically, the cutting blade 20 cuts the grass into pieces, and the grass pieces enter the grass collecting chamber 13 through the cutting chamber 12 and enter the grass collecting bag 30 through the rear notch 131. With this treatment mode, after the cutting is completed, the grass pieces can be cleaned up in a centralized manner, which is convenient, fast and beautiful.

[0045] In summary, the present invention provides a lawn mower, including a housing 10, a power assembly, and a cutting blade 20 driven by the power assembly. The lawn mower is provided with a partition 2, and the baffle 21 is driven to move left and right by turning up and down the rear cover 3, so as to realize the connection and separation between the cutting chamber 12 and the grass collecting chamber 13, which is convenient to operate and simple in structure.

[0046] The terms used herein, such as "upper", "lower", "left", "right", "front", "back", etc., which indicate relative spatial positions, are used for the purpose of convenience to describe the relationship between one feature and another feature as shown in the accompanying drawings. It is understood that, depending on the placement of the product, the terms of relative spatial positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims. In addition, the descriptor "horizontal" used herein is not completely equivalent to being perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0047] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A lawn mower comprising a housing, a power assembly and a cutting blade driven by the power assembly, characterized in that: The housing comprises a body, a rear cover plate pivotally connected to the rear of the body, and a partition portion for dividing the body into a cutting chamber and a grass collecting chamber, wherein the partition portion comprises a baffle plate, and the rear cover plate drives the baffle plate to move left and right by turning up and down, thereby realizing the connection and separation between the cutting chamber and the grass collecting chamber; The housing further comprises a transmission assembly, the baffle is linked with the rear cover plate through the transmission assembly, the transmission assembly comprises a transmission member arranged in the grass collecting chamber, the transmission member comprises an input gear, an output gear and an intermediate gear located between the input gear and the output gear; The input gear and the intermediate gear are a pair of matching bevel gears, and there are two opposite friction surfaces between the intermediate gear and the output gear; a gasket and a spring are provided under the output gear, the gasket is located between the output gear and the spring, and the spring is located between the housing and the gasket.

2. The lawn mower according to claim 1, characterized in that: The rear cover plate rotates between a first position and a second position, and a rear notch is provided at the rear of the grass collecting chamber; when the rear cover plate is flipped upward to the first position, the rear notch is opened; when the rear cover plate is flipped downward to the second position, the rear notch is closed.

3. The lawn mower according to claim 2, characterized in that: When the rear cover is flipped to the first position, the baffle moves to the third position, and the cutting chamber is connected with the grass collecting chamber; when the rear cover is flipped to the second position, the baffle moves to the fourth position, and the cutting chamber is separated from the grass collecting chamber.

4. The lawn mower according to claim 1, characterized in that: A side opening is provided on one side of the cutting chamber, and a reversible side cover plate and a detachable side discharge pipe are provided at the side opening.

5. The lawn mower according to claim 1, characterized in that: The transmission assembly also includes a rotating shaft arranged on the rear cover and a gear bar arranged on the baffle.

6. The lawn mower according to claim 5, characterized in that: The transmission member comprises a housing, the input gear and the output gear are arranged in the housing, the input gear is sleeved on a rotating shaft, the output gear is coupled with a gear bar, and the longitudinal axis of the rotating shaft and the output gear are arranged perpendicular to each other.

7. The lawn mower according to claim 5, characterized in that: The rear cover is pivotally connected to the body via a rotating shaft, a spring is sleeved on the rotating shaft, and the spring is located between the rear cover and the body.

8. The lawn mower according to claim 1, characterized in that: It further comprises a limiting component, which comprises a limiting groove arranged below the baffle plate and a hook arranged in the grass collecting cavity and matched with the limiting groove.

9. The lawn mower according to claim 2, characterized in that: It further comprises a grass collecting bag, and when the rear cover plate is in the first position, the grass collecting bag is assembled to the rear notch of the grass collecting cavity.

10. The lawn mower according to claim 3, characterized in that: The main body includes a fixing portion and a partition, and the partition and the baffle form the partition; when the baffle moves to a third position, the partition overlaps with the baffle; when the baffle moves to a fourth position, the partition is staggered with the baffle.

11. The lawn mower according to claim 10, characterized in that: The fixing part is provided with a slideway, and the upper and lower ends of the baffle are provided with sliders, and the sliders are installed in the slideway and move along the slideway.

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