CN212487333U

CN212487333U - Grass cutter

Info

Publication number: CN212487333U
Application number: CN202020488687.9U
Authority: CN
Inventors: 焦石平; 乔勇; 张峰
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-02-09
Anticipated expiration: 2030-04-07

Abstract

The application relates to a mower, which comprises a casing, a cutting assembly arranged on the casing, and a driving assembly used for driving the cutting assembly to run, wherein a grass discharge port is formed in the casing, the mower further comprises a baffle plate and a driving piece, the baffle plate is provided with an opening position for opening the grass discharge port and a closing position for closing the grass discharge port, the driving piece is used for driving the baffle plate to switch between the opening position and the closing position, when the driving piece is linked with the baffle plate and is located at the opening position, the baffle plate is located outside a grass discharge channel, the discharge of grass scraps is not influenced, the grass scraps cannot be polluted to cause blockage, and the mower is convenient and quick; the handle linkage baffle is in the same plane when moving between the opening position and the closing position, and does not occupy space, so that the mower is more compact in size.

Description

Grass cutter

Technical Field

The utility model relates to a mower belongs to mower technical field.

Background

A lawn mower, also known as a weeding machine, a lawn trimmer and the like, is a tool for leveling a lawn. Due to different requirements of users, lawn mowers generally have a grass collecting mode and a grass chopping mode. However, the grass chopping mode of the prior art grass mower mostly adopts the grass chopping accessory, namely, the grass chopping accessory is separated from the whole grass mower. When grass chopping is needed, the grass chopping accessory is connected with the mower and then grass chopping is carried out, so that the grass chopping accessory and the mower need to be repeatedly installed or detached, inconvenience is brought to users, and using feeling of the users is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lawn mower, it need not to set up extra garrulous grass annex and can reach garrulous grass function, and is swift convenient and high-efficient.

In order to achieve the above purpose, the utility model provides a following technical scheme: a lawn mower, comprising:

the device comprises a casing and a cutting chamber, wherein the casing comprises a volute formed with the cutting chamber and an air duct casing connected with the volute, the air duct casing is provided with a grass discharge channel communicated with the cutting chamber, and the grass discharge channel is provided with a grass discharge port close to the volute and a grass collection port far away from the volute and used for being connected with an external collection device;

the cutting assembly is arranged in the shell and performs cutting action on the target object;

the driving assembly drives the cutting assembly to operate;

the mower is provided with a grass discharging mode for discharging the target object from the cutting cavity to the outside of the housing through the grass discharging channel and a grass chopping mode for directly chopping the target object in the volute;

the lawnmower further comprising a switching assembly that closes the grass discharge opening such that the grass discharge channel is isolated from the cutting chamber such that the lawnmower is in the grass chopping mode, or opens the grass discharge opening such that the grass discharge channel is in communication with the cutting chamber such that the lawnmower is in the grass discharge mode, the switching assembly comprising:

the baffle is provided with an opening position for opening the grass discharging port and a closing position for closing the grass discharging port, and the baffle is positioned outside the grass discharging channel when in the opening position;

the driving piece comprises a handle, and the handle is linked with the baffle to switch between the opening position and the closing position.

Further, the moving paths of the handles linked with the baffles between the opening position and the closing position are basically in the same plane.

Further, the handle is linked with the baffle to move or rotate in the same plane.

Further, the switching component further comprises a connecting shaft which penetrates through the handle, one end of the connecting shaft is rotatably or slidably connected with the casing, and the other end of the connecting shaft is fixedly connected with the baffle.

Furthermore, the switching component also comprises a positioning pin shaft arranged on the handle, and a groove clamped with the positioning pin shaft is arranged on the shell; the handle is linked with the baffle to move to the opening position or the closing position, and the positioning pin shaft is clamped and positioned with the groove.

Further, the driving piece further comprises an unlocking piece, the unlocking piece is arranged on the handle and is linked with the positioning pin shaft to move relative to the handle, so that the positioning pin shaft is clamped with or separated from the groove.

Further, the driving piece further comprises an unlocking piece, and the unlocking piece is used for enabling the handle to be clamped and fixed with the machine shell so as to position the baffle plate, or enabling the handle to be separated from the machine shell and move relative to the machine shell so as to change the position of the baffle plate.

The utility model also provides a lawn mower, include:

the driving assembly drives the cutting assembly to operate;

the baffle is provided with an opening position for opening the grass discharging port and a closing position for closing the grass discharging port, and the baffle is positioned on one side of the grass discharging port when in the opening position;

the driving piece comprises a gear connected with the baffle, and the gear is rotated to drive the baffle to overturn relative to the grass discharging port so as to switch between the opening position and the closing position.

Further, the gear comprises a first gear body and a second gear body meshed with the first gear, and the baffle comprises a first baffle body connected with the first gear body and a second baffle body connected with the second gear body.

Further, the gear further comprises a connecting gear body which is arranged between the first gear body and the second gear body and is meshed with the first gear body and the second gear body.

The beneficial effects of the utility model reside in that: the baffle and the handle linked with the baffle are arranged, the baffle is provided with an opening position for opening the grass discharge port and a closing position for closing the grass discharge port, and the handle linked with the baffle is positioned in the same plane when moving between the opening position and the closing position, so that the space is not occupied, and the volume of the mower is more compact; when the grass discharge port is not closed by the baffle, the mower is in a grass collecting mode, and when the driving piece drives the baffle to close the grass discharge port, the mower is in a grass chopping mode, is switched quickly, does not need to be provided with additional grass chopping accessories, and is quick, convenient and efficient; meanwhile, when the baffle is in the opening position, the baffle is positioned outside the grass discharge channel and the grass discharge port, the discharge of grass scraps is not influenced, the grass scraps cannot be polluted, the blockage is avoided, and the convenience and the rapidness are realized.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the grass chopping mode of the grass mower of the present invention.

Fig. 2 is another schematic structural diagram of the grass chopping mode of the grass mower of the present invention.

Fig. 3 is a schematic structural view of the grass-collecting mode of the grass mower of the present invention.

Fig. 4 is another schematic structural view of the grass-collecting mode of the grass mower of the present invention.

Fig. 5 is a schematic structural diagram of a switching assembly according to an embodiment of the present invention.

FIG. 6 is another state diagram of the switching assembly of FIG. 5.

Fig. 7 is a schematic structural diagram of a switching assembly according to another embodiment of the present invention.

Fig. 8 is another state diagram of the switching assembly of fig. 7.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. In the description of the present invention, the axis direction is the same as the height direction.

Referring to fig. 1 to 4, a lawn mower 100 according to a preferred embodiment of the present invention includes a housing 1, a cutting assembly 3 disposed in the housing 1 for cutting an object, a driving assembly disposed in the housing 1 for driving the cutting assembly 3 to operate, and a wheel assembly 2 connected to the housing 1. In order to facilitate the user to use the lawn mower 100, the lawn mower 100 further comprises a push rod seat arranged on the housing 1 and an upper push rod connected with the push rod seat for the operator to hold, and the operator pushes the lawn mower 100 to move forward or backward by holding the upper push rod. The push rod seat and the upper push rod are arranged at the rear end of the machine shell 1, and the cutting component 3 is arranged at the front end of the mower 100 and is positioned at the bottom surface of the mower so as to enable the mower 100 to perform mowing action when moving.

The casing 1 includes a volute casing 13 formed with a cutting chamber and an air duct casing 14 connected to the volute casing 13, and the air duct casing 14 is disposed behind the volute casing 13 with the direction indicated by arrow a in the figure as the front. The air duct shell 14 is provided with a grass discharge channel 15 communicated with the cutting cavity, and the grass discharge channel 15 is provided with a grass discharge port 11 close to the volute casing 13 and a grass collection port 16 far away from the volute casing 13 and connected with an external collection device. The external collecting device may be a cloth bag or the like, and is not particularly limited herein. In the embodiment, the air duct housing 14 and the volute casing 13 are integrally formed, so that the manufacturing process is simplified, subsequent installation is not required, and no gap exists between the air duct housing and the volute casing to influence the attractiveness of the overall appearance. Indeed, in other embodiments, the duct housing 14 and the volute 13 may be separately disposed and then connected, and the connection manner includes but is not limited to: bonding, welding, clamping and the like, which are not specifically limited herein, are determined according to actual conditions.

Cutting assembly 3 is the blade disc, and blade disc 3 includes blade disc body and pivotally installs a plurality of blades on the blade disc body and constitutes. Indeed, the cutting assembly 3 may also be in other forms, such as a single strip-shaped blade or the like.

The drive assembly includes a mowing cutter motor (not shown) coupled to the cutter head for driving the cutter head in rotation and for mowing action. The cutting motor has an output shaft (not shown) through which it is directly connected to and drives the cutter head. Of course, a transmission device can be arranged between the cutting motor and the cutter disc so as to transmit the power of the cutting motor to the cutter disc through the transmission device, so that the cutter disc rotates to complete mowing, and the transmission device can be a belt pulley, a reduction gear and the like.

The wheel set 2 includes a front wheel 21 disposed at the front end of the mower 100, a rear wheel 22 disposed at the rear end, and a link 23 for keeping a distance between the front wheel 21 and the rear wheel 22 constant.

The housing 1 is provided with a grass discharge opening 11, and in the present embodiment, the grass discharge opening 11 is opened at the rear side of the housing 1 in the advancing direction of the mower 100. Indeed, in other embodiments, the grass discharge port 11 may be disposed at other positions of the housing 1, such as a side of the housing 1, and is not limited herein, depending on the actual situation.

The mower 100 has a grass cutting mode for discharging the object from the cutting chamber to the outside of the housing 1 through the grass discharge passage 15 and a grass cutting mode for directly cutting the object in the cutting chamber, and the object is discharged by the airflow of the cutting assembly 3 when the mower 100 is in the grass discharge mode.

Please refer to fig. 5 and fig. 6, the lawn mower 100 further includes a switching component 4, the switching component 4 closes the grass discharge port 11 to isolate the grass discharge channel 15 from the cutting cavity, so that the lawn mower 100 is in the grass chopping mode, or opens the grass discharge port 11 to communicate the grass discharge channel 15 with the cutting cavity, so that the lawn mower 100 is in the grass chopping mode, and the switching between the grass chopping mode and the grass discharging mode of the lawn mower 100 can be realized only by adjusting the switching component 4, which is fast and convenient without additionally installing grass chopping accessories. The switching assembly 4 includes a blocking plate 41 and a driving member 42 for driving the blocking plate 41, the blocking plate 41 has an open position a for opening the grass discharge opening 11 and a closed position B for closing the grass discharge opening 11, and the driving member 42 drives the blocking plate 41 to move between the open position a and the closed position B to close or open the grass discharge opening 11. As mentioned above, when the baffle 41 does not block the grass discharge port 11 so that the grass discharge port 11 is opened, the grass discharge passage 15 is communicated with the cutting chamber, the lawn mower 100 is in the grass collecting mode, and the cutting assembly 3 discharges grass after reaping from the grass discharge port 11 to the outside of the housing 1 under the action of the airflow. When the baffle 41 shields the grass discharge port 11 to close the grass discharge port 11, the grass discharge channel 15 is isolated from the cutting cavity, the mower 100 is in a grass chopping mode, the harvested grass continuously rotates in the machine shell 1 and cannot be discharged out of the machine shell 1, and then grass chopping action is carried out under the cutting action of the cutting assembly 3 until the mower 100 stops running, and the chopped grass falls to the ground after the mower 100 stops running.

Still be provided with opening 12 on casing 1, opening 12 sets up in the junction of wind channel casing 14 and spiral case 13, and baffle 41 sets up in row grass mouth 11 department this moment, and the aim at that sets up like this: the closer the distance between the grass discharge port 11 and the volute 13 is, the more compact the volute 13 structure is, and the better the grass chopping effect of the mower 100 is. The baffle plate 41 is arranged in the machine shell 1, and at least part of the driving piece 42 protrudes out of the machine shell 1 through the opening 12 so as to be driven by a user and drive the baffle plate 41 to move relative to the grass discharging opening 11. The drive member 42 is connected to the air duct housing 14 as described above.

In the present embodiment, the driving member 42 includes a handle 421 and an unlocking member 423, and in the present embodiment, the unlocking member 423 is an unlocking button, and indeed, in other embodiments, the unlocking member 423 may be other, which is not specifically limited herein, depending on the actual situation. The handle 421 and the linked baffle 41 are switched between the open position a and the closed position B, and the moving paths of the handle 421 and the linked baffle 41 between the open position a and the closed position B are substantially in the same plane, so that the overall structure of the mower 100 is more compact, and the position of the baffle 41 does not need to occupy more space. The cutting assembly 4 further includes a connecting shaft 426 penetrating the handle 421, one end of the connecting shaft 426 is rotatably or slidably connected to the casing 1, and the other end of the connecting shaft 426 is fixedly connected to the baffle 41, that is, the handle 421 is moved to make the rotating shaft 426 rotate or move relative to the casing 1 to drive the baffle 41 to rotate or move, so that the baffle 41 moves or rotates in the same plane. In the embodiment, the handle 421 is linked with the baffle 41 to rotate in the same space, and the rotation angle is 90 °, so that the baffle 41 can rotate in the same space to open or close the grass discharge opening 11. Indeed, in other embodiments, the rotation angle of the handle 421 linked with the baffle 41 may be other, or the handle 421 linked with the baffle 41 moves in the same space, which is not specifically limited herein, depending on the actual situation.

The switch assembly 4 further includes a positioning pin 422 disposed on the handle 421, the positioning pin 422 is used to clamp and position the handle 421 with the housing 1, and the connecting shaft 426 is disposed at one end of the handle 421. Because the handle 421 is connected to the air duct housing 14 and the baffle plate 41 through the connecting shaft 426, the handle 421 can rotate in a plane relative to the air duct housing 14 through the connecting shaft 426, so that the baffle plate 41 moves in a plane, that is, the open position a and the closed position B of the baffle plate 41 are substantially in the same plane. The handle 421 is adjusted to drive the flap 41 to move to the open position a relative to the grass discharge opening 11 so that the grass discharge opening 11 is opened, and at this time, the flap 41 is located outside the grass discharge opening 11 and the grass discharge passage 15, i.e., the flap 41 is not visible in the grass discharge opening 11. The purpose of this is to: when the mower 100 discharges the grass pieces out of the housing 1 through the grass discharge opening 11, the grass pieces do not stick to the baffle 41, and therefore the grass pieces are not blocked.

In order to facilitate the rotation and the engagement positioning of the handle 421 relative to the housing 1, a groove (not shown) for engaging and positioning with the positioning pin 422 is provided on the housing 1. As described above, since the opening 12 has two ends, when the handle body 421 moves to the two ends of the opening 12, the two ends are fixed to the housing 1 through the positioning pins 422, respectively, so that two grooves are provided, and the shapes of the two grooves are matched with the positioning pins 422. Indeed, in other embodiments, the handle body 421 can also slide along the casing 1, and in this case, the groove can be an elongated groove, which is not specifically limited herein, depending on the actual situation.

The unlocking button 423 is used for clamping and fixing the handle 421 and the housing 1 to position the baffle 41, or separating the handle 421 from the housing 1 and moving relative to the housing 1 to change the position of the baffle 41, and the unlocking button 423 is disposed on the handle 421 and moves the positioning pin 422 in comparison with the handle 421, so that the positioning pin 422 is clamped or separated from the groove. The handle 421 has a hollow portion, and a first through hole 424 and a second through hole 425 which are provided on the handle 421 and communicated with the hollow portion, the positioning pin 422 is provided in the hollow portion, one end of the positioning pin 422 protrudes out of the first through hole 424 to be engaged with the groove, one end of the unlocking button 423 is connected with the positioning pin 422, one end of the unlocking button 423 protrudes out of the second through hole 425, and an elastic member (not shown) is further provided between the unlocking button 423 and the handle 421. Exert external force in order to press the unlock button 423, unlock button 423 removes and then compresses the elastic component to handle body 421, drives locating pin shaft 422 to remove to handle body 421 simultaneously to make handle body 421 break away from and then rotate handle body 421 with casing 1. When the handle body 421 moves to the target position, the external force is removed, the elastic member rebounds under the action of its own elastic force to drive the handle body 421 to reset, and then the positioning pin 422 is driven to reset. In this embodiment, the elastic member is a spring. Indeed, in other embodiments, the elastic member may be other, and is not limited herein, according to the actual situation. The unlocking button 423 may be connected to the positioning pin 422 through a connector or may be integrally formed with the positioning pin 422. In order to simplify the manufacturing process, in the present embodiment, the unlocking button 423 is integrally formed with the positioning pin 422. Indeed, in other embodiments, the unlocking button 423 may be provided separately from the positioning pin 422, and is not specifically limited herein, depending on the actual situation.

Referring to fig. 7 and 8, in other embodiments, the driving member 42 'further includes a gear 42'. When the driving member 42 ' is a gear, the flap 41 ' rotates with the gear 42 ' relative to the grass discharge opening 11, and when the flap 41 ' is located at the open position a, the flap 41 ' is located at one side of the grass discharge opening 11. The gear 42 'includes a first gear body 421' and a second gear body 422 'engaged with the first gear, and at this time, the barrier 41' includes a first barrier body 411 'connected to the first gear body 421' and a second barrier body 412 'connected to the second gear body 422'. One of the first gear body 421 'and the second gear body 422' is rotated to drive the other of the first gear body 421 'and the second gear body 422' to rotate, so that the first baffle body 411 'and the second baffle body 412' move relatively to open or close the grass discharge opening. Wherein, the moving directions of the first baffle body 411 'and the second baffle body 412' are opposite.

In order to improve the transmission ratio of the gear 42 ', the gear further includes two connecting gear bodies 423' disposed between the first gear body 421 'and the second gear body 422' and engaged with the first gear body 421 'and the second gear body 422'. Indeed, in other embodiments, the number of the connecting gear bodies 423' may be other, and is not limited herein, according to the actual situation.

The switching assembly further includes a knob 424 ' connected with the gear, and the knob 424 ' may be disposed on one or more of the first gear body 421 ', the second gear body 422 ', and the connecting gear body 423 ' to facilitate the operation of the operator, which is not specifically limited herein, depending on the actual situation.

In summary, the following steps: the baffle plate 41 is provided with the baffle plate and the handle 421 linked with the baffle plate 41, the baffle plate 41 is provided with the opening position A for opening the grass discharging port 11 and the closing position B for closing the grass discharging port 11, and the handle 421 linked with the baffle plate 41 is positioned in the same plane when moving between the opening position A and the closing position B, so that the space is not occupied, and the volume of the mower 100 is more compact; when the grass discharge port is not closed by the baffle 41, the mower 100 is in a grass collecting mode, and when the driving piece 42 drives the baffle 41 to close the grass discharge port, the mower 100 is in a grass chopping mode, so that the grass chopping mode is switched quickly, additional grass chopping accessories are not required to be installed, and the operation is quick, convenient and efficient; meanwhile, when the baffle 41 is in the opening position A, the baffle is positioned outside the grass discharge channel 15 and the grass discharge port 11, the discharge of grass scraps is not influenced, the grass scraps cannot be polluted, the blockage is avoided, and the convenience and the rapidness are realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A lawn mower, comprising:

the driving assembly drives the cutting assembly to operate;

wherein the mower further comprises a switching assembly for closing the grass discharge port to isolate the grass discharge channel from the cutting chamber so that the mower is in the grass chopping mode, or opening the grass discharge port to communicate the grass discharge channel with the cutting chamber so that the mower is in the grass discharge mode, the switching assembly comprising:

2. The lawnmower of claim 1, wherein the path of movement of the handle in conjunction with the flap between the open and closed positions is substantially in the same plane.

3. The mower of claim 2, wherein said handle is coupled to said deck to move or rotate in the same plane.

4. The mower of claim 3, wherein said switch assembly further comprises a connecting shaft extending through said handle, one end of said connecting shaft being rotatably or slidably connected to said housing, and the other end of said connecting shaft being fixedly connected to said flap.

5. The mower of claim 4, wherein said switch assembly further comprises a positioning pin disposed on said handle, said housing having a groove for engaging said positioning pin; the handle is linked with the baffle to move to the opening position or the closing position, and the positioning pin shaft is clamped and positioned with the groove.

6. The mower of claim 5, wherein the actuator further comprises an unlocking member disposed on the handle and linking the positioning pin to move relative to the handle such that the positioning pin engages or disengages the groove.

7. The mower of claim 1, wherein the actuator further comprises an unlocking member configured to snap-fit the handle to the housing to position the guard or to disengage the handle from the housing and move relative to the housing to change the position of the guard.

8. A lawn mower, comprising:

the driving assembly drives the cutting assembly to operate;

9. The mower of claim 8, wherein the gear comprises a first gear body and a second gear body in meshing engagement with the first gear, and wherein the guard comprises a first guard body coupled to the first gear body and a second guard body coupled to the second gear body.

10. The mower of claim 9, wherein the gear further comprises a connecting gear body disposed between and in meshing engagement with the first and second gear bodies.