CN113207413B

CN113207413B - Adjustment mechanism and electric tool

Info

Publication number: CN113207413B
Application number: CN202110642846.5A
Authority: CN
Inventors: 王强; 刘楷; 汪剑辉
Original assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Current assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-09-02
Anticipated expiration: 2041-06-09
Also published as: CN113207413A

Abstract

The invention provides an adjusting mechanism and an electric tool, wherein the adjusting mechanism comprises a first connecting piece, a second connecting piece, a third connecting piece and an adjusting button; the first connecting piece is provided with a first Y-axis limiting structure; the second connecting piece and the first connecting piece form rotating connection around the Y axis, and the second connecting piece is provided with a first X-axis limiting structure; the third connecting piece and the second connecting piece form a rotary connection around the X axis, and the third connecting piece is provided with a second X axis limiting structure; the X axis is perpendicular to the Y axis; the adjusting button is provided with a third X-axis limiting structure and a second Y-axis limiting structure and is movably connected with the second connecting piece and the third connecting piece; the adjusting button can be driven by a first acting force to move from a first position to a second position. The adjusting mechanism integrates the angle adjusting function and the axial rotating function of the working device on one adjusting button to complete, so that the product structure is greatly simplified, the convenience of operation is improved, and the user experience is improved.

Description

Adjustment mechanism and electric tool

Technical Field

The invention belongs to the technical field of electric tools, and particularly relates to an adjusting mechanism and an electric tool.

Background

A lawn mower is a common electric lawn mowing tool. The grass trimmer in the prior art is humanized in operation and control, and the grass trimming head (namely a working device) can be adjusted in angle and can also be axially rotated so as to be suitable for different user groups and realize multiple functions. However, for the grass trimmer in the prior art, the working device needs to realize two actions of angle adjustment and axial rotation, and needs to be realized through two different adjusting mechanisms, so that the manufacturing cost and the product structure complexity are increased, and the actual operation is not facilitated.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides an adjustment mechanism and electric tool, with two actions of angle modulation and axial rotation integrated to a button to reduce the complexity of structure, improved the convenience of operation.

The invention is realized in the following way: an adjusting mechanism comprises a first connecting piece, a second connecting piece, a third connecting piece and an adjusting button;

the first connecting piece is provided with a first connecting part, and the first connecting part is provided with a first Y-axis limiting structure;

the second connecting piece is provided with a second connecting part and a third connecting part, the second connecting part and the first connecting part form rotating connection around a Y axis, and the third connecting part is provided with a first hole and a first X-axis limiting structure;

the third connecting piece is provided with a fourth connecting part, and the fourth connecting part is provided with a second hole and a second X-axis limiting structure; the fourth connecting part and the third connecting part form rotary connection around an X axis; the X axis is perpendicular to the Y axis;

the adjusting button is provided with a third X-axis limiting structure and a second Y-axis limiting structure, and the adjusting button is movably connected with the first hole and the second hole;

the adjusting button can be driven by a first acting force to move from a first position to a second position, when the adjusting button is at the first position, the second Y-axis limiting structure and the first Y-axis limiting structure form limiting connection, and the third X-axis limiting structure and the first X-axis limiting structure form limiting connection respectively;

when the adjusting button is at the second position, the second Y-axis limiting structure and the first Y-axis limiting structure are relieved from limiting connection, and the third X-axis limiting structure and the first X-axis limiting structure form limiting connection and are relieved from limiting connection with the second X-axis limiting structure.

Further, still include the spring, spring one end butt the second connecting piece, the other end butt the adjustment button, the spring can provide the second effort and make adjustment button move to the first position from the second position.

Furthermore, the first Y-axis limiting structures are positioning grooves, and at least two positioning grooves are distributed on the first connecting part; the second Y-axis limiting structure is a positioning clamping protrusion matched with the positioning groove.

Furthermore, the first X-axis limiting structure is a plurality of limiting teeth distributed along the circumferential direction of the first hole, the second X-axis limiting structure is a plurality of limiting teeth distributed along the circumferential direction of the second hole, and the third X-axis limiting structure is a plurality of limiting teeth distributed along the circumferential direction of the adjusting button.

Furthermore, the limiting teeth of the first X-axis limiting structure are distributed on the hole wall of the first hole, and the limiting teeth of the second X-axis limiting structure are distributed on the hole wall of the second hole.

The invention also provides an adjusting mechanism, which comprises a first connecting piece, a second connecting piece, a third connecting piece and an adjusting button;

the first connecting piece is provided with a first Y-axis limiting structure;

the second connecting piece and the first connecting piece form rotary connection around a Y axis, and the second connecting piece is provided with a first X-axis limiting structure;

the third connecting piece and the second connecting piece form rotary connection around an X axis, and the third connecting piece is provided with a second X axis limiting structure; the X axis is perpendicular to the Y axis;

the adjusting button is provided with a third X-axis limiting structure and a second Y-axis limiting structure, and the adjusting button is movably connected with the second connecting piece and the third connecting piece;

when the adjusting button is at the second position, the second Y-axis limiting structure is released from limiting connection with the first Y-axis limiting structure, and the third X-axis limiting structure is formed into limiting connection with the first X-axis limiting structure and is released from limiting connection with the second X-axis limiting structure.

The invention also provides an electric tool, which comprises a handheld device, a main body and a working device, wherein the handheld device is arranged at one end of the main body, and the working device is adjustably arranged at the other end of the main body through an adjusting mechanism; the adjustment mechanism is an adjustment mechanism as claimed in claim 1 or 6; the first connecting piece is fixedly connected with the main body, and the third connecting piece is fixedly connected with the working device.

Furthermore, the working device is a grass mowing device and comprises a shell, a motor, a grass mowing coil and a protective cover, wherein the shell is also used as a third connecting piece; the motor sets up in the casing, the solenoid of beating the grass sets up on the output shaft of motor, the guard shield is connected the casing and at least part is acceptd the solenoid of beating the grass.

Furthermore, the handheld device is a handle, and a self-locking button, a switch, a controller and battery pack pins are arranged on the handle; the self-locking button, the switch and the working device are electrically connected with the controller, and the battery pack supplies power for the whole body.

The invention has the following beneficial effects:

1. the adjusting mechanism integrates the angle adjusting function and the axial rotating function of the working device on one adjusting button to complete, so that the product structure is greatly simplified, the convenience of operation is improved, and the user experience is improved.

2. The adjusting mechanism realizes limiting by utilizing the meshing between the limiting teeth, and the number of the limiting teeth can be set according to actual conditions, so that more angles can be adjusted, the limiting is more convenient to form and remove, and the operation difficulty is reduced.

3. The adjusting mechanism utilizes the spring to realize the automatic reset of the adjusting button, so that the posture of the working device can be adjusted through one pressing action when the adjusting mechanism is used, and the operation is more convenient and efficient.

Drawings

FIG. 1 is a perspective view of the electric power tool of the present invention;

FIG. 2 is a perspective view of the hand held device of the power tool of FIG. 1;

FIG. 3 is an exploded view of the working device and adjustment structure of the power tool of FIG. 1;

FIG. 4 is an exploded view of the adjustment mechanism of FIG. 3;

FIG. 5 is a front elevational view of the adjustment mechanism of FIG. 3;

FIG. 6 is a flow chart of the angle adjustment from A-A to the sectional view of FIG. 5;

FIG. 7 is a schematic view of the first and second connectors of the adjustment mechanism of FIG. 3;

FIG. 8 is an exploded view of the structure shown in FIG. 7;

FIG. 9 is a flow chart illustrating axial rotation adjustment of the structure of FIG. 7;

FIG. 10 is a comparison of the attitude of the working device of the power tool of FIG. 1 undergoing axial rotation;

FIG. 11 is a schematic view showing a comparison of the attitude of the working device of the power tool shown in FIG. 1 for angle adjustment;

fig. 12 is a diagram showing a comparison of the attitude of the working device in the electric power tool shown in fig. 1 for axial rotation and angular adjustment.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 12, an electric power tool 1 includes a hand-held device 2, a main body 4, and a working device 6, the hand-held device 2 being provided at one end of the main body 4, and the working device 6 being adjustably provided at the other end of the main body 4 by an adjustment mechanism. One-button operation can be realized through the adjusting structure, and the purposes of axial rotation and angle adjustment are achieved.

Specifically, as shown in fig. 3, 4, 5, 7, and 8, the adjustment mechanism includes a first link 5, a second link 12, a third link 11, an adjustment button 14, and a spring 13. Since the third connecting member 11 is to be connected to the working device 6, the third connecting member 11 can be directly used as a housing of the working device 6. The first connecting piece 5 is fixedly connected with the main body 4 through a buckle structure, and the third connecting piece 11 is fixedly connected with the working device 6.

As shown in fig. 7, the first connector 5 has a first connection portion 5a, the first connection portion 5a is a rotary structure body having the Y axis as a rotation axis, and the first connection portion 5a is provided with a first Y axis stopper structure and a slide groove 5c provided along the circumferential direction. For a power tool, the Y-axis is the central axis of the body 4. First Y axle limit structure is positioning groove, and positioning groove distributes on first connecting portion 5a has at least two to satisfy a plurality of angle modulation's demand. The second Y-axis limiting structure 4b is a positioning clamping protrusion matched with the positioning groove.

As shown in fig. 8, the second coupling member 12 includes a second coupling portion 12d and a third coupling portion 12f, the second coupling portion 12d is a circular bayonet, and the second coupling portion 12d is coupled to the slide groove 5c of the first coupling portion 5a to form a rotational coupling about the Y axis. The third connecting portion 12f is provided with a first hole 12c and a first X-axis limit structure 12 e. The third connection portion 12f is a rotating structure formed on the second link 12 and having the X axis as a rotation axis. The second connecting member 12 includes two substantially identical halves, i.e., a left half 12a and a right half 12b, which are integrally connected by screws. The first X-axis limiting structure 12e is provided on the right half body 12, and the first hole 12c, the second connecting portion 12d, and the third connecting portion 12f are formed on both the half bodies. The first X-axis limiting structure 12e is a plurality of limiting teeth distributed along the circumferential direction of the first hole 12 c. The limiting teeth of the first X-axis limiting structure 12e are distributed on the hole wall of the first hole 12 c.

The third connecting part 11 has a fourth connecting part 11d, the fourth connecting part 11d is a circular ring-shaped enclosure structure, and the fourth connecting part 11d is provided with a second hole 11a and a second X-axis limiting structure 11 e. The enclosure structure of the fourth connecting part 11d is connected with the third connecting part 12f, so that a rotary connection around the X axis is formed; the X-axis is perpendicular to the Y-axis. The third connecting body 11 includes two parts having substantially the same structure, namely a left housing 11b and a right housing 11c, which are integrally connected by a screw or a snap. The second X-axis limiting structure 11e is provided on the right housing 11c, and the second hole 11a and the fourth connecting portion 11d are formed on both housings. The second X-axis limiting structure 11e is a plurality of limiting teeth distributed along the circumferential direction of the second hole 11a, and the limiting teeth of the second X-axis limiting structure 11e are distributed on the hole wall of the second hole 11 a.

The adjusting button 14 is provided with a third X-axis limiting structure 4a and a second Y-axis limiting structure 4b, and the adjusting button 14 is movably connected with the first hole 12c and the second hole 11 a. The adjustment button 14 is movable from a first position to a second position under actuation of a first force. The third X-axis limiting structure 4a is a plurality of limiting teeth distributed along the circumferential direction of the adjusting button 14.

The spring 13 is disposed in the first hole 12c, one end of the spring abuts against the second connecting member 12, and the other end abuts against the adjusting button 14, and the spring 13 can provide a second acting force to move the adjusting button 14 from the second position to the first position.

As shown in fig. 6 and 9, when the adjustment button 14 is in the first position, the second Y-axis limiting structure 4b forms a limiting connection with the first Y-axis limiting structure. At this time, the first connecting piece 5 and the second connecting piece 12 cannot rotate around the Y axis, the third X-axis limiting structure 4a forms limiting connection with the first X-axis limiting structure 12e and the second X-axis limiting structure 11e respectively, and at this time, the second connecting piece 12 and the third connecting piece 11 cannot rotate around the X axis. When the adjusting button 14 is at the second position, the second Y-axis limiting structure 4b and the first Y-axis limiting structure are relieved from limiting connection, at this time, the first connecting piece 5 and the second connecting piece 12 can rotate around the Y-axis, the third X-axis limiting structure 4a and the first X-axis limiting structure 12e form limiting connection, at this time, the adjusting button 14 and the second connecting piece 12 still keep limiting around the X-axis, the third X-axis limiting structure 4a and the second X-axis limiting structure 11e are relieved from limiting connection, and the second connecting piece 12 and the third connecting piece 11 can rotate around the X-axis.

That is, when the adjustment button 14 is in the first position, the working device 6 is fixed relative to the main body 4 and cannot be adjusted, thereby ensuring that work is performed in a fixed posture during operation. As shown in fig. 9 and 10, when the axial rotation is required, the adjusting button 14 is pressed, the adjusting button 14 moves along the X axis and retracts into the first hole 12c, in the process, the positioning clamping protrusion forms a positioning groove in a limiting connection before being separated, the working device 6 is driven to rotate for a certain angle around the Y axis at the moment until the positioning clamping protrusion can be aligned with the next positioning groove, at the moment, the adjusting button 14 is reset under the action force of the spring 13, the positioning clamping protrusion and the positioning groove are enabled to achieve the limiting connection again, and the first connecting piece 5 and the second connecting piece 12 are fixed. As shown in fig. 6 and 11, when the axial rotation is required, the adjusting button 14 is pressed, the adjusting button 14 moves along the X axis and retracts into the first hole 12c, and in the process, the limiting teeth of the third X-axis limiting structure 4a and the limiting teeth of the second X-axis limiting structure 11e are separated from each other, so that the limiting connection is released. At this time, the working device 6 is driven to rotate by a certain angle around the X axis until the limiting teeth of the third X axis limiting structure 4a are aligned with the limiting teeth of the second X axis limiting structure 11e, and the adjusting button 14 is reset under the action of the spring 13, so that the limiting teeth of the third X axis limiting structure 4a and the limiting teeth of the second X axis limiting structure 11e are in limiting connection again, and the second connecting piece 5 and the third connecting piece 12 are fixed.

As shown in fig. 12, when it is necessary to perform the axial rotation and the angle adjustment simultaneously, the connection posture between the connection members may be adjusted according to the above-described operation. Therefore, the purposes of axial rotation and angle adjustment can be achieved through one adjusting button 14, the product structure is greatly simplified, the operation difficulty is reduced, and the user experience is improved.

As shown in FIG. 3, the working device 6 of the present invention is a mowing device, and includes a housing, a motor 15, a mowing package 17, and a cover 7. The motor 15 is assembled with the motor support 16, and is fixed in the shell of the grass mowing device 6 through the motor support 16, the output shaft of the motor 15 is provided with the solenoid 17, the solenoid 17 is driven to rotate at a high speed, and grass mowing is realized through the grass mowing rope on the solenoid 17. The cover 7 is connected to the housing and at least partially houses a mowing line package 17.

The hand-held device 2 is a handle, and a self-locking button 8, a switch 9, a controller and a battery pack pin 10 are arranged on the handle. The battery pack 3 is connected with the battery pack pin 10 to provide power energy for the electric tool 1. The battery pack 3 is electrically connected with the controller through the battery self-locking button 8, the switch 9 and the working device 6, and the battery pack 3 supplies power for the whole.

It should be noted that the working device 6 may also be another type or function of electrically powered device, such as a sanding device, a painting device, etc.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like 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 directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An adjusting mechanism is characterized by comprising a first connecting piece (5), a second connecting piece (12), a third connecting piece (11) and an adjusting button (14);

the first connecting piece (5) is provided with a first connecting part (5 a), and the first connecting part (5 a) is provided with a first Y-axis limiting structure;

the second connecting piece (12) is provided with a second connecting part (12 d) and a third connecting part (12 f), the second connecting part (12 d) and the first connecting part (5 a) form rotating connection around the Y axis, and the third connecting part (12 f) is provided with a first hole (12 c) and a first X-axis limiting structure (12 e);

the third connecting piece (11) is provided with a fourth connecting part (11 d), and the fourth connecting part (11 d) is provided with a second hole (11 a) and a second X-axis limiting structure (11 e); the fourth connecting part (11 d) and the third connecting part (12 f) form a rotary connection around an X axis; the X axis is perpendicular to the Y axis;

the adjusting button (14) is provided with a third X-axis limiting structure (4 a) and a second Y-axis limiting structure (4 b), and the adjusting button (14) is movably connected with the first hole (12 c) and the second hole (11 a);

the adjusting button (14) can move from a first position to a second position under the drive of a first acting force, when the adjusting button (14) is at the first position, the second Y-axis limiting structure (4 b) and the first Y-axis limiting structure form limiting connection, and the third X-axis limiting structure (4 a) forms limiting connection with the first X-axis limiting structure (12 e) and the second X-axis limiting structure (11 e) respectively;

when the adjusting button (14) is at the second position, the second Y-axis limiting structure (4 b) is released from limiting connection with the first Y-axis limiting structure, and the third X-axis limiting structure (4 a) is formed into limiting connection with the first X-axis limiting structure (12 e) and is released from limiting connection with the second X-axis limiting structure (11 e).

2. An adjustment mechanism according to claim 1, further comprising a spring (13), said spring (13) abutting said second link (12) at one end and said adjustment button (14) at the other end, said spring (13) being capable of providing a second force to move said adjustment button (14) from the second position to the first position.

3. An adjustment mechanism according to claim 1 or 2, wherein the first Y-axis limiting structure is a positioning groove, and at least two positioning grooves are distributed on the first connecting portion (5 a); the second Y-axis limiting structure (4 b) is a positioning clamping protrusion matched with the positioning groove.

4. An adjustment mechanism according to claim 1 or 2, characterized in that the first X-axis stop structure (12 e) is a number of stop teeth distributed in the circumferential direction of the first hole (12 c), the second X-axis stop structure (11 e) is a number of stop teeth distributed in the circumferential direction of the second hole (11 a), and the third X-axis stop structure (4 a) is a number of stop teeth distributed in the circumferential direction of the adjustment button (14).

5. An adjustment mechanism according to claim 4, characterized in that the stop teeth of the first X-axis stop structure (12 e) are distributed on the wall of the first bore (12 c) and the stop teeth of the second X-axis stop structure (11 e) are distributed on the wall of the second bore (11 a).

6. An adjusting mechanism is characterized by comprising a first connecting piece (5), a second connecting piece (12), a third connecting piece (11) and an adjusting button (14);

the first connecting piece (5) is provided with a first Y-axis limiting structure;

the second connecting piece (12) and the first connecting piece (5) form rotary connection around a Y axis, and the second connecting piece (12) is provided with a first X-axis limiting structure (12 e);

the third connecting piece (11) and the second connecting piece (12) form a rotary connection around an X axis, and the third connecting piece (11) is provided with a second X axis limiting structure (11 e); the X axis is perpendicular to the Y axis;

the adjusting button (14) is provided with a third X-axis limiting structure (4 a) and a second Y-axis limiting structure (4 b), and the adjusting button (14) is movably connected with the second connecting piece (12) and the third connecting piece (11);

7. An adjustment mechanism according to claim 6, further comprising a spring (13), said spring (13) abutting said second link (12) at one end and said adjustment button (14) at the other end, said spring (13) being adapted to provide a second force to move said adjustment button (14) from said second position to said first position.

8. An electric tool (1) comprises a hand-held device (2), a main body (4) and a working device (6), wherein the hand-held device (2) is arranged at one end of the main body (4), and the working device (6) is adjustably arranged at the other end of the main body (4) through an adjusting mechanism; wherein the adjustment mechanism is an adjustment mechanism as claimed in claim 1 or 6; the first connecting piece (5) is fixedly connected with the main body (4), and the third connecting piece (11) is fixedly connected with the working device (6).

9. An electric tool (1) according to claim 8, characterized in that the working device (6) is a grass cutting device comprising a housing doubling as the third connecting member (11), a motor (15), a grass cutting cord package (17) and a cover (7); the motor (15) sets up in the casing, beat the setting of careless solenoid (17) and be in on the output shaft of motor (15), guard shield (7) are connected the casing is and at least part is acceptd beat careless solenoid (17).

10. An electric tool (1) as claimed in claim 8, characterized in that the hand-held device (2) is a handle on which a self-locking button (8), a switch (9), a controller and battery pack pins (10) are arranged; the self-locking button (8), the switch (9) and the working device (6) are electrically connected with the controller, and the battery pack (3) supplies power for the whole.