CN218163601U

CN218163601U - Working head for trimming machine and trimming machine

Info

Publication number: CN218163601U
Application number: CN202222553921.3U
Authority: CN
Inventors: 王西雷; 张石锋
Original assignee: Suzhou Yuanlong Technology Co ltd
Current assignee: Suzhou Yuanlong Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-12-30
Anticipated expiration: 2032-09-26

Abstract

The application discloses work head and trimmer for trimmer. The working head includes: the cutter blade protection device comprises a shell, wherein a protection shell is installed on one side of the shell, a driving device is arranged in the shell, the driving device comprises a driving motor and a gearbox matched with the driving motor, the gearbox is provided with an output shaft, the output shaft penetrates through a first through hole of the protection shell and is connected with a blade positioned in the protection shell, and at least one protrusion protruding towards the side of the blade is installed on the inner side of the protection shell. Grass or branch that is drawn into in the protective housing through such design are cut by the arch, prevent that it from twining and plugging up drive arrangement or blade on the output shaft, alleviate the clearance burden in later stage.

Description

Working head for trimming machine and trimming machine

Technical Field

The application relates to a garden tool, in particular to a working head for an edge trimmer and an edge trimmer.

Background

An edger is a common garden tool intended for trimming or furrowing lawns. The working head of the trimmer generally comprises a motor and a blade connected to an output shaft of the motor, the cutting elements are generally vertically arranged to achieve trimming or ditching, and the motor can drive the cutting elements to perform trimming or ditching when being started. However, in the practical use process, it is found that, when the lawn is trimmed, the cut grass or branches and other sundries enter and wind around the blade or the rotating shaft to affect the trimming efficiency, and if the grass or branches and other sundries wind around the blade or the rotating shaft, the blade or the rotating shaft is easily damaged or locked, and in addition, the grass or branches and other sundries wind around the rotating shaft to cause troubles in the later cleaning.

SUMMERY OF THE UTILITY MODEL

To overcome the above disadvantages, the present application aims at: a working head for an edge trimmer and an edge trimmer are provided.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a work head for an edge trimmer comprising:

a shell, wherein one side of the shell is provided with a protective shell,

the blade-side cutting device is characterized in that a driving device is arranged in the shell and comprises a driving motor and a gearbox matched with the driving motor, the gearbox is provided with an output shaft, the output shaft penetrates through the first through hole of the protective shell and is connected with a blade positioned in the protective shell, and at least one bulge protruding towards the blade side is arranged on the inner side of the protective shell. Through such design, this arch is done supplementary blade concurrently, and it will be drawn into grass or branch in the protective housing and cut by the arch, prevents that its winding from plugging up drive arrangement or blade on the output shaft, alleviates the clearance burden in later stage.

In one embodiment, the length of the side protruding toward the blade is smaller than the interval between the inner side of the protective case and the blade. This avoids the projections interfering with the blade.

In one embodiment, the ratio of the length L2 protruding towards the blade side to the distance L1 from the inside of the protective shell to the blade is between 0.4 and 0.9. The length L2 of the protrusion is too small to function as a grass or tree branch, and too long is likely to interfere with the blade.

In one embodiment, the work head further comprises:

the first fixing piece is arranged on the base of the shell, and the first fixing piece is provided with a bulge facing the blade side. Thus, the bulge is convenient to replace when the bulge is seriously worn.

In one embodiment, the protrusion is in the form of a plate and the protrusion is angled less than 90 ° from the horizontal. Preferably, the included angle is between 30-60 °. The sundries such as grass or branches entering the protective shell can be cut off conveniently.

In one embodiment, the protrusion is in a sheet shape, and the included angle between the protrusion and the horizontal plane is smaller than 90 degrees.

In one embodiment, a plurality of protruding portions are arranged on the outer side of the protective shell at intervals, a concave portion is arranged between every two adjacent protruding portions, the concave portion is used for accommodating the height adjusting rod, and the rod body of the height adjusting rod corresponds to different height adjusting heights when being located in different concave portions. This facilitates the adjustment of the height of the grass.

In one embodiment, the shell comprises a first shell and a second shell, and the first shell is close to the side of the protective shell,

one side end of casing dispose the installation department, the installation department is used for installing the connecting rod, the side of keeping away from the installation department of casing has the perforation, the second gyro wheel passes through the third connecting piece the perforation is fixed in on the casing.

In an embodiment, the combination of the first casing and the second casing forms an accommodating cavity for accommodating the driving device.

The embodiment of the application provides an edge trimmer, it has:

the working head for the edge trimmer is characterized by comprising a connecting rod, wherein a second handle is arranged on one side of the connecting rod, a mounting seat is configured on the second handle and used for being connected with a power supply module, and the other side of the connecting rod is connected with the working head for the edge trimmer.

Advantageous effects

Through working head and trimmer that this application provided, set up the auxiliary blade in the protective housing, even debris such as weeds or branch get into in the protective housing and between the base of blade and protective housing during the operation, debris such as weeds or branch of rolling in are cut into the minor details by the auxiliary blade, avoid its winding on blade or pivot like this, reduce the clearance burden in later stage when improving cutting efficiency.

Drawings

The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but rather are merely intended to illustrate the context of the application.

FIGS. 1 and 2 are perspective views of an edger according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of the edger of FIG. 1 with the protective cover removed;

FIG. 4 is a schematic perspective view of a working head of an edge trimmer according to an embodiment of the present application;

FIG. 5 is a schematic perspective view of a working head according to an embodiment of the present application;

6-9 are schematic internal structural views of the working head according to the embodiment of the present application;

FIG. 10 is a schematic view of a perspective view of a working head of an edger according to an embodiment of the present application.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions employed in the examples may be further adjusted as determined by the particular manufacturer, and the conditions not specified are typically those used in routine experimentation.

The application discloses work head for trimmer, it includes:

the protective shell is installed on one side of the shell, a driving device is arranged in the shell and comprises a driving motor and a gearbox matched with the driving motor, the gearbox is provided with an output shaft, the output shaft penetrates through a first through hole of the protective shell and is connected with a blade located in the protective shell, and at least one bulge protruding towards the blade side is installed on the inner side of the protective shell. This arch is done the auxiliary blade concurrently, cuts the grass or the branch of being drawn into in the protective housing, prevents that it from twining on the output shaft.

The work head and edger carrying the same proposed by the present application will be described with reference to fig. 1-10.

Fig. 1 and 2 are schematic perspective views of an edge trimmer according to an embodiment of the present disclosure.

The edger 100 includes:

a working head 110, a connecting rod 120, a first handle 130, a second handle 140 and a power supply module 150,

one end of the connecting rod 120 is connected to the working head 110, the other end is connected to the second handle 140, and the side of the second handle 140 away from the connecting rod 120 is provided with a mounting seat for connecting a power supply module 150. The power supply module 150 is a battery pack, and the voltage thereof is between 18V and 40V. The second handle 140 has a trigger switch (not shown) on the inside thereof, and the first handle 130 is mounted on the connecting rod 120. The connecting rod 120 may be made of one or more sections of aluminum alloy or carbon fiber. The connecting rod 120 is hollow, and a hollow cavity is formed therein, and the hollow cavity is used for arranging a wire to transmit the electric power of the power supply module 150 to the working head 110 (the driving motor therein).

The work head and edge trimmer will now be described with reference to FIGS. 3-10.

The working head 110 includes a housing 115, a protective housing 116 is installed at one side of the housing 115,

the housing 115 has a driving device therein, the driving device includes a driving motor 111 and a gear box 1111 matching with the driving motor 111, the gear box 1111 is installed with an output shaft 112,

the output shaft 112 passes through the first aperture 1164 of the protective shell 116 and is positioned within the protective shell 116, and the output shaft 112 has a blade 113 mounted thereon.

The inner side of the protective shell 116 is provided with a first fixing member 114, and the side of the first fixing member 114 facing the blade 113 is provided with a projection 1141. Preferably, the protrusion 1141 is integrally formed with the first fixing member 114. This projection 1141 doubles as an auxiliary blade for cutting off grass or branches that are wound into the protective case 116. This prevents grass or branches caught in the protective housing 116 from becoming entangled on the output shaft and blocking the drive or blade and being difficult to clean. The first fastener 114 is fixed to the protective shell 116 through the second hole 1163 of the protective shell 116 by the first connector 117 (e.g., a bolt and nut combination).

In one embodiment, projection 1141 is in the form of a plate that is angularly disposed (i.e., the projection is angled less than 90 degrees from horizontal when the edger is in use). In other embodiments, the first fastener may be omitted and the projection may be directly fixed to the protective case, and in other embodiments, the projection may be a fine bolt. Preferably, the length L2 protruding toward the blade side is smaller than the distance L1 from the inner side of the protective case (base 116 a) to the blade. Preferably, the ratio of the length L2 protruding toward the blade side to the interval L1 between the inside of the protective case and the blade is 0.4 to 0.9.

A plurality of projections 1161 arranged at intervals are provided on the outer side (side close to the driving device) of the protective case 116,

two adjacent protrusions 1161 have a recess for receiving the height-adjusting lever 163, and the height of the height-adjusting lever 163 is adjusted when the lever body is located in different recesses. The height-adjusting lever 163 is fixed to the protective shell 116 through the third through hole 1162 of the protective shell 116 by the second connecting member 164. And the heightening lever 163 is rotatable along the second link 164. The second connecting member 164 is a bolt. The height-adjusting rod is in a V shape, a first roller 161 is installed at one end of the height-adjusting rod, and a rod body at the other end side can be embedded into a concave part (for example, 3 or 4 concave parts are arranged, so that height adjustment of 3 gears or 4 gears is realized) to adjust the cutting height. Preferably, the protective shell 116 is made of metal or carbon fiber.

The housing 115 includes a first housing 115a and a second housing 115b, and the first housing 115a is close to the side of the protective shell 116. A mounting portion 1151 is disposed at one end of the housing 115, and the mounting portion 1151 is used for connecting the connecting rod 120. The housing 115 has a through hole 1152 on a side thereof away from the mounting portion 1151, and the second roller 162 is fixed to the housing 115 through the through hole 1152 by a third connecting member. The position of the second roller 162 is not adjustable in use.

The above-mentioned embodiments are only for illustrating the technical idea and features of the present application, and the purpose of the present application is to enable one skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made within the spirit of the present application are intended to be covered by the scope of the present application.

Claims

1. A working head for an edge trimmer is characterized by comprising:

a shell, wherein one side of the shell is provided with a protective shell,

the shell is internally provided with a driving device which comprises a driving motor and a gearbox matched with the driving motor, the gearbox is provided with an output shaft, the output shaft penetrates through the first through hole of the protective shell and is connected with a blade positioned in the protective shell,

at least one protrusion protruding toward the blade side is installed on the inner side of the protective shell.

2. A work head for an edger as in claim 1,

the length of the side protruding towards the blade is smaller than the interval between the inner side of the protective shell and the blade.

3. A work head for an edger as in claim 2,

the ratio of the length L2 protruding to the blade side to the interval L1 from the inner side of the protective shell to the blade is 0.4-0.9.

4. A work head for an edger as defined in claim 1, further comprising:

the first fixing piece is arranged on the base of the shell, and the first fixing piece is provided with a bulge facing the blade side.

5. A work head for an edger as in claim 4,

the protrusion is flaky, and the included angle between the protrusion and the horizontal plane is less than 90 degrees.

6. A work head for an edger as in claim 4,

the protrusions are flaky, and the included angle between the protrusions and the horizontal plane is less than 90 degrees,

the protrusion and the first fixing member are integrally formed.

7. A work head for an edger as in claim 1,

the outer side of the protective shell is provided with a plurality of protruding portions arranged at intervals, a concave portion is arranged between every two adjacent protruding portions, the concave portion is used for accommodating the heightening rod, and the rod body of the heightening rod corresponds to different heightening heights when being located in different concave portions.

8. The work head for an edger of claim 1 wherein,

the shell comprises a first shell and a second shell, the first shell is close to the side of the protective shell,

9. A work head for an edger as in claim 8,

the combination of the first shell and the second shell forms an accommodating cavity, and the accommodating cavity is used for accommodating the driving device.

10. An edge trimmer is characterized by comprising

The working head for the edge trimmer is characterized by comprising a connecting rod, wherein one side of the connecting rod is provided with a second handle, a mounting seat is arranged on the second handle and used for connecting a power supply module, and the other side of the connecting rod is connected with the working head for the edge trimmer as claimed in any one of claims 1-9.