CN217064610U

CN217064610U - Grass trimmer with pushing assistance

Info

Publication number: CN217064610U
Application number: CN202220566373.5U
Authority: CN
Inventors: 童弋康
Original assignee: Yongkang Jiale Mei Industry And Trade Co ltd
Current assignee: Yongkang Jiale Mei Industry And Trade Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-29
Anticipated expiration: 2032-03-15

Abstract

The application discloses a grass mower with pushing assistance, which comprises a handle, a machine head, a shield, a traveling wheel and a connecting arm; wherein, the machine head at least comprises a motor, a grass mowing head driven by the motor and a shell used for accommodating the motor; the traveling wheel is rotatably connected to a connecting arm by taking a rotating axis as a shaft, and the connecting arm is directly connected to the shield; the application has the advantages that: the utility model provides a walking wheel and the casing of aircraft nose can be dismantled and set up, conveniently installs and removes and maintains the walking wheel have the supplementary machine of beating grass of pushing away.

Description

Grass trimmer with pushing assistance

Technical Field

The application relates to the field of grass trimmers, in particular to a grass trimmer with pushing assistance.

Background

In the related technical field, the plant cutting part of the grass trimmer is often a cutting line or a cutting sheet, the cutting part rotates at a high speed under the driving of a motor fixed on a grass trimming head, and green plants can be cut and shaped after being cut off; patent No. CN206686614U discloses a grass trimmer, comprising: the extension rod extends lengthways and is provided with a first end and a second end opposite to the first end along the length direction; the machine head is connected with the first end of the extension rod; a handle assembly for operation by an operator, the handle assembly including a first handle and a second handle connected to a second end of the extension pole; the second handle includes at least one operating position including positioning the second handle in a first position that provides resting support for an operator's arm or elbow, the second handle cooperating with the first handle in the first position to enable one-handed operation, the lawnmower having a grass cutting state and an edging state under one-handed operation, the lawnmower further including a battery pack for energizing the head. The utility model can reduce the weight of the motor through the direct current drive, thereby realizing the reduction of the weight of the whole grass trimmer; however, in the grass trimmer disclosed in the patent document, the tank wheel is integrated on the machine head, so that the tank wheel is not easy to mount, and the dynamic balance at the machine head is not easy to adjust when the grass trimmer is used, so that the cutting part is unstable in working under high-speed rotation, and the cutting effect is affected.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

To solve the technical problems mentioned in the background section above, some embodiments of the present application provide a lawnmower with push assist, comprising a handle, a head, a shroud, a road wheel, and a connecting arm; the handle is used for a user to operate the grass mower; the machine head at least comprises a motor, a grass mowing head driven by the motor and a machine shell used for accommodating the motor; a housing with a shield mounted to the handpiece; the traveling wheels are rotatably connected to the connecting arms by taking the rotating axes as shafts, and the connecting arms are directly connected to the protective cover.

Further, the rotation axis of the walking wheel is parallel to the rotation axis of the grass mowing head.

Further, the road wheel includes two wheel portions and a middle portion disposed between the two wheel portions.

Further, the walking wheels are arranged at the end parts of the connecting arms.

Further, the outer edge of the travelling wheel is positioned outside the outer edge of the shield.

Furthermore, the guard shield is equipped with a plurality of constant head tanks, and the linking arm is equipped with the reference column of a plurality of embedding constant head tanks.

Further, the grass trimmer still includes: sliding prying; the skid is detachably connected to the connecting arm.

Further, the connecting arm is at least partially arranged between the travelling wheel and the sliding pry; the skid is configured to have a skid surface for ground contact, the generatrix of the skid surface being perpendicular to the rotational axis of the road wheel.

Furthermore, the position of the sliding pry and the position of the walking wheel relative to the connecting arm are the same.

Further, the connecting arm has at least one connecting portion configured as a bent structure to avoid the cabinet.

The beneficial effect of this application lies in: the utility model provides a walking wheel and the casing of aircraft nose can be dismantled and set up, conveniently installs and removes and maintains the walking wheel have the supplementary machine of beating grass of pushing away.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.

Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic view according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure near the handpiece in the embodiment shown in FIG. 1;

FIG. 3 is an isometric cross-sectional view of the vicinity of the handpiece in the embodiment shown in FIG. 1;

FIG. 4 is an exploded view of a portion of the structure of the embodiment shown in FIG. 1;

FIG. 5 is a schematic view of the shroud and connecting arm in mating relation in the embodiment of FIG. 1;

FIG. 6 is a schematic illustration of the construction of the skid of the embodiment shown in FIG. 1;

fig. 7 is a cross-sectional view of the road wheel in the embodiment shown in fig. 1.

The meaning of the reference numerals in the drawings of the specification

A grass trimmer, 100;

101. a handle;

102. a machine head;

103. a shield; 103a, a positioning groove;

104. a traveling wheel; 104a, a wheel portion; 104b, an intermediate portion; 104c, a hook; 104d, a second inclined plane; 104e and a second limiting surface;

105. a connecting arm; 105a, a collar; 105b, penetrating a groove; 105c, a latch hook; 105d, a first bevel; 105e, a first limiting surface; 105f, a connecting part; 105g and positioning columns;

106. an extension rod;

107. sliding prying; 107a, a skid surface; 107b, a penetrating rod; 107c, lock grooves;

108. a locking bar.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.

It should be noted that, for the convenience of description, only the parts relevant to the present application are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.

It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 7, the grass trimmer with push assist of the present embodiment includes a handle 101, a head 102, a hood 103, a road wheel 104 and a connecting arm 105; the handle 101 is used for a user to operate the grass trimmer; the handpiece 102 comprises at least a motor, a mowing head driven by the motor, and a casing for accommodating the motor; the handle 101 is provided with a power supply, the power supply can be a battery pack or an external power supply and is used for supplying power to the motor to drive the grass cutting head to rotate so as to realize the trimming function of the plants; the handle 101 and the machine head 102 are connected through an extension rod 106, the handle 101 and the machine head 102 are respectively arranged at two ends of the extension rod 106, and the machine shell is rotatably connected to the extension rod 106, so that the machine head 102 integrally rotates to the trimming mode; in the trimming mode, the rotation part of the grass trimmer head for trimming the plants forms an included angle of 90 degrees with the horizontal plane when the machine head 102 is in the trimming mode, namely the machine head 102 is vertically arranged, the travelling wheels 104 fall on the ground and support the machine head 102, and the machine head 102 can roll on the ground, so that a user can push the grass trimmer to move to finish the trimming work of the plants; the shroud 103 is mounted to the housing of the handpiece 102 by means of a conventional threaded connection; the road wheel 104 is rotatably connected to a connecting arm 105 about a rotation axis, the connecting arm 105 at least partially overlapping the shroud 103 to directly connect the connecting arm 105 to the shroud 103; in this way, the traveling wheels 104 are detachably connected to the housing, so that the traveling wheels 104 can be mounted and dismounted and maintained without detaching the head 102 as a whole after the traveling wheels 104 are damaged.

Furthermore, the rotation axis of the walking wheel 104 is parallel to the rotation axis of the grass mowing head, and the rotation axis of the grass mowing head and the rotation axis of the walking wheel 104 are both horizontal straight lines and are in the same plane when the machine head 102 is in the trimming mode, so that when a user controls the handle 101 to drive the grass mower to move, the advancing direction of the walking wheel 104 is consistent with the operation and control direction of the user, the phenomenon that branches of plants are mistakenly trimmed due to unstable movement of the grass mower is avoided, and the trimming effect of the grass mower is ensured.

Further, the road wheel 104 comprises two wheel portions 104a and a middle portion 104b, the middle portion 104b is arranged between the two wheel portions 104a, the wheel portions 104a and the middle portion 104b are both cylindrical and coaxially and integrally arranged, and the central axes of the two are the rotation axes of the road wheel 104; the outer diameter of the wheel part 104a is larger than that of the middle part 104b, so that when the walking wheel 104 rolls on the ground, the wheel part 104a falls on the ground and supports the machine head 102, and the middle part 104b has a gap with the ground, so that the walking wheel 104 can conveniently cross obstacles such as branches on the ground.

Specifically, a sleeve ring 105a is arranged on the part of the connecting arm 105 extending out of the outer edge of the protective cover 103, and the travelling wheel 104 is sleeved on the sleeve ring 105a and is rotatably connected with the sleeve ring 105 a; the lantern ring 105a is provided with a through groove 105b, the inner wall of one end of the through groove 105b is provided with a plurality of locking hooks 105c, and the locking hooks 105c comprise a first inclined surface 105d and a first limiting surface 105e which are obliquely intersected; a plurality of hooks 104c are uniformly arranged on the inner wall of one end of the middle part 104b far away from the shield 103, each hook 104c is circumferentially distributed around the rotation axis of the travelling wheel 104, and each hook 104c is provided with a second inclined plane 104d and a second limiting surface 104e which are obliquely crossed; when the traveling wheel 104 and the connecting arm 105 are assembled, the traveling wheel 104 is sleeved on the lantern ring 105a, the first inclined surface 105d is in contact with the second inclined surface 104d, the hook 104c is deformed by pressing the traveling wheel 104, the hook 104c moves to the position below the hook 105c, so that the hook 104c is embedded with the hook 105c, one end of the traveling wheel 104 abuts against the surface of the lantern ring 105a, the first limiting surface 105e abuts against the second limiting surface 104e, sliding of the traveling wheel 104 on the lantern ring 105a is limited, assembling of the traveling wheel 104 and the connecting arm 105 is completed, and the traveling wheel 104 is rotatably connected to the connecting arm 105.

Further, the road wheels 104 are arranged at the ends of the connecting arms 105, and the outer edges of the road wheels 104 are positioned outside the outer edges of the protective covers 103, i.e. the ends of the connecting arms 105 extend out to the outer edges of the protective covers 103, so that the protective covers 103 do not obstruct the rolling of the road wheels 104.

Further, the protective cover 103 is provided with a plurality of positioning grooves 103a, the connecting arm 105 is provided with a plurality of positioning posts 105g embedded in the positioning grooves 103a, the positioning posts 105g can be provided with screw holes, and then the connecting arm 105 is mounted to the protective cover 103 through bolt fitting.

Alternatively, the connecting arm may be connected to the shroud using a quick release mechanism, such as a cam hold down mechanism or a snap mechanism, for securing and quick release.

Two ends of the connecting arm 105 are respectively provided with a walking wheel 104, namely the two walking wheels 104 are symmetrically arranged at two sides of the protective cover 103; a line segment with two end points respectively on the rotating axes of the two walking wheels 104 and vertical to the rotating axes of the walking wheels 104 is defined as a central line segment, the projection of the rotating axis of the grass mowing head on a horizontal plane containing the central line segment passes through the middle point of the central line segment, namely, the two walking wheels 104 are symmetrically arranged at two sides of the grass mowing head so as to ensure the dynamic balance of the grass mowing head during rotation.

Further, the grass trimmer still includes: a skid 107; a skid 107 removably connected to the connecting arm 105; connecting arm 105 is at least partially disposed between road wheel 104 and skid 107; the sliding pry 107 is constructed to have a sliding pry surface 107a for ground contact, the generatrix of the sliding pry surface 107a is perpendicular to the rotating axis of the travelling wheels 104, the head 102 is in a horizontal state in a flat cutting mode, the sliding pry 107 is supported below the head 102, and the sliding pry surface can slide on the ground so as to facilitate the user to move the grass mower; the two ends of the skid surface are in an upward-tilting arc shape so that the skid 107 can pass over obstacles such as branches on the ground; the position of the sliding pry 107 is the same as that of the road wheel 104 relative to the connecting arm 105, namely the sliding pry 107 is also arranged on the lantern ring 105a, so that the occupied space of the grass trimmer is reduced; specifically, the sliding pry 107 is provided with a through rod 107b, and the through rod 107b is inserted into the through groove 105b and can slide relative to the through groove 105b, so that the grass mowing head is suspended in the air and the height of the grass mowing head away from the ground is adjusted; the cross section of the penetrating rod 107b is not circular, namely, the sliding pry 107 is connected with the lantern ring 105a in a rotation stopping manner, so that the movement of the grass mower is prevented from being unstable; one side of the penetrating rod 107b is provided with a plurality of locking grooves 107 c; the ring 105a is provided with a lock rod 108, the lock rod 108 is in threaded connection with the ring 105a, and one end of the lock rod 108 is inserted into the through groove 105b and can be embedded into the lock groove 107c to limit the insertion rod to slide relative to the ring 105a so as to fix the height of the grass cutting head.

Further, the connecting arm 105 has at least one connecting portion 105f, the connecting portion 105f is configured as a bent structure to avoid the housing, specifically, the connecting portion 105f is fixed to the housing by means of screw connection, and both ends thereof are respectively formed integrally with a collar 105a so as to assemble the skid 107 and the road wheel 104 to the housing; the head of beating the grass passes the casing middle part, and the setting up of bending structure makes the head of beating the grass unsettled to reduce walking wheel 104 or slide sled 107 when ground removes, because of the uneven rotation production interference to the head of beating the grass of ground, guarantee to beat the head of beating the grass and can work steadily.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.

Claims

1. A lawnmower with push assist comprising:

the handle is used for a user to operate the grass trimmer;

the head at least comprises a motor, a grass mowing head driven by the motor and a shell for accommodating the motor;

a shield mounted to a housing of the handpiece;

the method is characterized in that:

the machine of beating the grass still includes:

a traveling wheel and a connecting arm;

wherein the content of the first and second substances,

the traveling wheel is rotatably connected to the connecting arm by taking a rotating axis as a shaft, and the connecting arm is directly connected to the shield.

2. A lawnmower with push assist according to claim 1, wherein:

the rotation axis of the walking wheel is parallel to the rotation axis of the grass cutting head.

3. A lawnmower with push assist according to claim 2, wherein:

the walking wheel comprises two wheel parts and a middle part, wherein the middle part is arranged between the two wheel parts.

4. A lawnmower with push assist according to claim 1, wherein:

the walking wheel is arranged at the end part of the connecting arm.

5. A lawnmower with push assist according to claim 1, wherein:

the outer edge of the travelling wheel is positioned on the outer side of the outer edge of the protective cover.

6. A lawnmower with push assist according to claim 1, wherein:

the guard shield is equipped with a plurality of constant head tanks, the linking arm is equipped with a plurality of embedding the reference column of constant head tank.

7. A lawnmower with push assist according to claim 1, wherein:

the grass trimmer still includes: sliding prying; the skid is detachably connected to the connecting arm.

8. A lawnmower with push assist according to claim 7, wherein:

the connecting arm is at least partially arranged between the travelling wheel and the sliding pry; the skid is configured to have a skid surface for ground contact, the generatrix of the skid surface being perpendicular to the rotational axis of the road wheel.

9. A lawnmower with push assist according to claim 8, wherein:

the sliding pry and the traveling wheel are in the same position relative to the connecting arm.

10. A lawnmower with push assist according to claim 1, wherein:

the connecting arm has at least one connecting portion configured as a curved structure to avoid the cabinet.