CN220359735U - Rod tool - Google Patents

Abstract

The application discloses a pole class instrument includes: a front end mechanism comprising a functional component for implementing a tool function; a connecting rod device, the front end of which is provided with a front end mechanism, the connecting rod device comprises a connecting rod which at least partially extends along a first straight line direction; a main handle connected to the connecting rod device, the main handle including a main grip portion for a user to grip, the main handle being arranged to be rotatable about a first line relative to the front end mechanism to effect a change in the working angle of the functional assembly; the limiting assembly comprises a limiting piece used for limiting the main handle to a preset position when the main handle rotates around a first straight line relative to the functional assembly to the preset position; the limit assembly is configured to change limit state when the primary handle is rotated about the first line. The rod tool can be operated more conveniently by a user.

Description

Rod tool

Technical Field

The application relates to a garden tool, in particular to a rod tool.

Background

Pole-type tools, such as lawnmowers, pruners, brush cutters, etc., are commonly used for users to perform work in gardens. Among them, the grass trimmer is used as a lawn care device, which is generally used for repairing lawns, and also for trimming grass under shrubs or devices. When the grass at different positions is trimmed, a user needs to adjust the grass trimmer to different holding positions, so that the user feels uncomfortable when holding the grass trimmer, and the working efficiency of the user is affected.

Disclosure of Invention

It is an object of the present application to solve or at least mitigate some or all of the above problems. To this end, it is an object of the present application to provide a pole tool that is convenient for a user to operate.

In order to achieve the above object, the present application adopts the following technical scheme:

a rod-like tool comprising: a front end mechanism comprising a functional component for implementing a tool function; a connecting rod device, the front end of which is provided with a front end mechanism, the connecting rod device comprises a connecting rod which at least partially extends along a first straight line direction; a main handle connected to the connecting rod device, the main handle including a main grip portion for a user to grip, the main handle being arranged to be rotatable about a first line relative to the front end mechanism to effect a change in the working angle of the functional assembly; the limiting assembly comprises a limiting piece used for limiting the main handle to a preset position when the main handle rotates around a first straight line relative to the functional assembly to the preset position. The limit assembly is configured to change limit state when the primary handle is rotated about the first line.

In some embodiments, the change in the limit state of the limit assembly is effected by rotation of the primary handle about a first line.

In some embodiments, the stop assembly further includes a biasing element that generates a biasing force that biases the stop.

In some embodiments, the stop assembly further comprises an engagement portion that engages the stop member to limit the primary handle to the predetermined position, and the stop assembly further comprises a biasing element that generates a biasing force that engages the stop member with the engagement portion.

In some embodiments, the stop is disengaged from the mating portion when the main handle is rotated about the first line relative to the functional assembly.

In some embodiments, the mating portion is a recess and the stop is a movable element that is driven into the recess by the biasing element.

In some embodiments, the movable element is a pin or a ball.

In some embodiments, the stop is connected to the main handle and the mating portion is a groove or protrusion connected to the connecting rod means.

In some embodiments, the main handle is formed with a receiving hole, the biasing element is disposed in the receiving hole, and the limiter is at least partially disposed in the receiving hole.

In some embodiments, the stop is connected to the connecting rod means and the mating portion is a groove or protrusion connected to the main handle.

The beneficial point of the application lies in: the rod tool can facilitate the user to adjust the working position, and improves the comfort level and the operation convenience.

Drawings

FIG. 1 is a perspective view of a lawnmower of one embodiment in an angled cut mode;

FIG. 2 is a plan view of the lawnmower of FIG. 1;

FIG. 3 is a first cross-sectional view of the mower of FIG. 2;

FIG. 4 is a second cross-sectional view of the mower of FIG. 2;

FIG. 5 is a plan view of a lawnmower of an embodiment, wherein the energy source arrangement includes a plug;

FIG. 6 is a plan view of the lawnmower of FIG. 1 in a horizontal cutting mode;

FIG. 7 is a perspective view of the lawnmower of FIG. 6 after 90 degrees of rotation of the main handle;

FIG. 8 is a perspective view of the lawnmower of FIG. 1 in a trimming mode;

FIG. 9 is a plan view of the mower of an embodiment in which the operating member and auxiliary handle are separately located;

FIG. 10 is an exploded view of the adjustment device and front end mechanism of the lawnmower of FIG. 1;

FIG. 11 is another perspective view of the structure shown in FIG. 10;

FIG. 12 is a perspective view of a portion of the adjustment device of FIG. 10;

FIG. 13 is another perspective view of the structure shown in FIG. 12;

FIG. 14 is a perspective view of a portion of the operating member and mounting member of FIG. 12;

FIG. 15 is another perspective view of the structure shown in FIG. 14;

FIG. 16 is a perspective view of the mower of FIG. 1 with the rear mechanism separated from the attachment bar assembly;

fig. 17 is an enlarged view of a portion of the area in fig. 16;

FIG. 18 is a partial exploded view of the backend mechanism of the lawnmower of FIG. 1;

FIG. 19 is another perspective view of the structure shown in FIG. 18;

FIG. 20 is a perspective view of a lawnmower of another embodiment;

FIG. 21 is a plan view of the lawnmower shown in FIG. 20;

FIG. 22 is a cross-sectional view of the mower of FIG. 20;

FIG. 23 is an enlarged view of a portion of the adjustment mechanism and a portion of the connecting rod of the mower of FIG. 20;

FIG. 24 is a perspective view of the operating member, auxiliary handle of FIG. 23 with the second locking portion in a disengaged state from the first locking portion;

fig. 25 is a perspective view of the structure shown in fig. 24 in a state in which the second locking portion is engaged with the first locking portion;

fig. 26 is an enlarged view of a portion of the structure shown in fig. 22.

Detailed Description

Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings.

In this application, the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present application, the term "and/or" is an association relationship describing an association object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" in this application generally indicates that the front-rear association object is an "and/or" relationship.

The terms "connected," "coupled," and "mounted" are used herein to describe either a direct connection, a coupling, or an installation, or an indirect connection, a coupling, or an installation. By way of example, two parts or components are connected together without intermediate members, and by indirect connection is meant that the two parts or components are respectively connected to at least one intermediate member, through which the two parts or components are connected. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings, and may include electrical connections or couplings.

In this application, one of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "substantially," etc.) used in connection with quantities or conditions are intended to include the values and have the meanings indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a particular value, the tolerance associated with a particular value resulting from manufacture, assembly, use, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to the addition or subtraction of a percentage (e.g., 1%,5%,10% or more) of the indicated value. Numerical values, not employing relative terms, should also be construed as having specific values of tolerance. Further, "substantially" when referring to relative angular positional relationships (e.g., substantially parallel, substantially perpendicular) may refer to adding or subtracting a degree (e.g., 1 degree, 5 degrees, 10 degrees, or more) from the indicated angle.

In this application, one of ordinary skill in the art will understand that a function performed by a component may be performed by one component, multiple components, a part, or multiple parts. Also, the functions performed by the elements may be performed by one element, by an assembly, or by a combination of elements.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", and the like are described in terms of orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements. It should also be understood that the terms upper, lower, left, right, front, back, etc. are not only intended to represent positive orientations, but also to be construed as lateral orientations. For example, the lower side may include a right lower side, a left lower side, a right lower side, a front lower side, a rear lower side, and the like.

The lawnmower 100 shown in fig. 1 is a garden tool that is operated by a user to cut lawns or weeds in a garden. Alternatively, the mower 100 may also cut lawns or weeds in other bushes. In the embodiment shown in fig. 1, the grass cutting machine 100 is provided with a grass cutting rope 100a, and the grass cutting machine 100 can be started to drive the grass cutting rope 100a to rotate at a high speed so as to cut off grass. In other embodiments, the mower 100 may also be provided with blades that are rotated to cut off the grass when the mower 100 is activated.

As shown in fig. 1, the grass trimmer 100 includes: front end mechanism 11, back end mechanism 12 and connecting rod means 13. The front end mechanism 11 comprises a grass cutting assembly 111 for performing a grass cutting function, and the rear end mechanism 12 comprises an energy source device 121 capable of providing an energy source, and the connecting rod device 13 connects the front end mechanism 11 and the rear end mechanism 12.

For convenience of description, the end of the connecting rod device 13 connected to the front end mechanism 11 is defined as the front, and the end of the connecting rod device 13 connected to the rear end mechanism 12 is defined as the rear.

As shown in fig. 1 and 2, the front end mechanism 11 is disposed at the front end of the connection rod device 13, and the mowing assembly 111 may be provided with a mowing rope 100a to drive the mowing rope 100a to rotate at a high speed. It will be appreciated that the grass cutting assembly 111 may also be provided with blades to rotate the blades. The rear end mechanism 12 is mounted to the rear end of the connecting rod arrangement 13, and in this embodiment, the energy source arrangement 121 may comprise a battery pack 121a, the battery pack 121a being used to provide power to the mower 100. It will be appreciated that in other embodiments, as shown in fig. 5, the energy source device 121 may include a plug 121b for connecting to mains or a connection wire 121c for other power supply devices. Alternatively, in other embodiments, the energy source device 121 may include a container for containing fuel, such as gasoline, diesel, and the like.

The connecting rod arrangement 13 comprises connecting rods 131 extending at least partly in the direction of the first straight line 101, in this embodiment the connecting rods 131 as a whole each extending in the direction of the first straight line 101. It will be appreciated that in other embodiments, the connecting rod 131 may extend partially along the first line 101 and partially along a direction different from the first line 101.

As shown in fig. 1 to 4, the grass trimmer 100 further comprises an adjusting device 20 for adjusting the pitch angle a of the grass trimmer assembly 111. By adjusting the pitch angle a of the grass cutting assembly 111, a user is enabled to cut grass under shrubs having different heights, particularly to facilitate cutting grass under low shrubs or under some facilities. As shown in fig. 1 to 4, the grass trimmer 100 is in a normal grass trimming state, the pitch angle a is greater than 0 degrees, preferably, the pitch angle a may be greater than or equal to 20 degrees and less than or equal to 60 degrees, and in this embodiment, the grass trimmer 100 is defined to be in a tilt cutting mode, and the direction of the first straight line 101 along which the connecting rod 131 extends is inclined with respect to the ground. It will be appreciated that by operating the adjustment device 20, the user may cause the mower 100 to be in a tilt cutting mode having a different pitch angle A. As shown in fig. 2, the pitch angle is the angle between the first straight line 101 and the plane of the ground.

As shown in fig. 2 and 6, the user can also operate the adjusting means 20 so that the pitch angle a is reduced to the state shown in fig. 6, in which the pitch angle a is substantially 0 degrees, and in which the first straight line 101 along which the connecting rod 131 extends is substantially parallel to the ground, so that the mower 100 can be operated to extend under a low bush or under a stool or the like to cut grass. It will be appreciated that the state of the lawnmower 100 illustrated in fig. 6 may be defined as a horizontal cutting mode.

Of course, in order to cut grass under shrubs or installations of different heights, the user may adjust the pitch angle a to vary between a maximum pitch angle and 0 degrees. Alternatively, the user may adjust the variation of the pitch angle a according to his height or operating habits.

The adjusting device 20 includes: an operation member 21 and a driving assembly 22, the operation member 21 is operated by a user to adjust the magnitude of the pitch angle A, and the driving assembly 22 is connected with the operation member 21 and the grass cutting assembly 111, so that when the operation member 21 is operated by the user, the driving assembly 22 can drive the grass cutting assembly 111 to move to change the magnitude of the pitch angle A. In the present embodiment, the operation member 21 includes an operation portion 211 for operation by a user, and a distance L1 between the operation portion 211 and the rear end of the grass cutter 100 is 0 or more and 700 mm or less. It is understood that, as shown in fig. 5, considering that the energy source device 121 includes a flexible connection line 121c, in the grass cutter 100 shown in fig. 5, the distance L1 between the operation part 211 and the rear end of the grass cutter 100 does not take into consideration the length of the connection line 121c.

In the present embodiment, the distance L1 between the operation unit 211 and the rear end of the grass trimmer 100 may be measured when the pitch angle a is arbitrarily selected to be a value a. Similarly, other distances in this application may be measured with the mower 100 at any selected pitch angle A, unless otherwise specified.

In this way, the operation piece 21 is provided between the front end mechanism 11 and the rear end mechanism 12, so that the user can operate the operation piece 21 conveniently without soiling hands. And the structure of the front end mechanism 11 can be simplified, the weight of the front end mechanism 11 is reduced, and the balance of the whole machine is better.

In the present embodiment, the portion of the grass trimmer 100 where the battery pack 121a is not mounted is defined as the host, and the distance L2 between the operation portion 211 and the rear end of the host is 0 or more and 650 mm or less. In this way, the operating member 21 is further away from the front end of the grass trimmer 100, so that the user can not only operate the operating member 21 to adjust the pitch angle a of the grass cutting assembly 111 without bending down, but also the user does not touch the front end mechanism 11 with his or her hand when operating the operating member 21 with his or her hand, so that the user's hand is not soiled with grass, soil, or the like on the front end mechanism 11.

In some embodiments, the distance L1 between the operating portion 211 and the rear end of the grass mower 100 is greater than or equal to 0 and less than or equal to 600 mm, so that the user can trigger the operating member 21 without moving both hands, thereby improving the working efficiency.

Alternatively, in some embodiments, the distance L1 between the operating portion 211 and the rear end of the grass cutter 100 is 300 mm or more and 600 mm or less, so that the user can operate the adjusting device 20 conveniently while operating the grass cutter 100 to cut grass.

In the present embodiment, the operating member 21 is mounted to the connecting rod device 13, and the operating member 21 is spaced apart from the front end mechanism 11 by a first preset distance L3, the first preset distance L3 being greater than 0. In this way, grass clippings and soil generated during the mowing process of the mower 100 can adhere to the front structure and not to the operating member 21. In some embodiments, the first preset distance L3 is greater than or equal to 200 millimeters. In some embodiments, the first preset distance L3 is greater than or equal to 350 millimeters.

In this embodiment, the ratio of the distance L1 between the operating portion 211 and the rear end of the grass trimmer 100 to the length L4 of the grass trimmer 100 along the first straight line 101 is greater than or equal to 0.1 and less than or equal to 0.8, so that the position setting of the operating member 21 is reasonable for the entire grass trimmer 100, and the operation of a user is more convenient. In some embodiments, the ratio of the distance L1 between the operation portion 211 and the rear end of the grass cutter 100 to the length L4 of the grass cutter 100 along the first straight line 101 is greater than or equal to 0.25 and less than or equal to 0.6.

It will be appreciated that in some other embodiments, the length of the connecting rod arrangement 13 may vary, i.e. the connecting rod 131 may be a telescopic rod which can vary along the first line 101, the telescopic tube having a different length during the telescopic process to realize the grass cutting machine 100. In this embodiment, when the link device 13 is in the longest state, the distance L1 between the operating portion 211 and the rear end of the grass cutter 100 in the direction along the first straight line 101 is 0 or more and 700 mm or less, so that not only the convenience of operation by the user but also the convenience of operation of the grass cutter 100 in different length states are considered. In this application, for the grass trimmer 100 in which the connecting rod 131 is a telescopic rod, the distance between the two parts may be measured when the telescopic rod is extended to the longest state.

As shown in fig. 3 and 4, the connecting rod device 13 includes a first end 131a connected to the front end mechanism 11 and a second end 131b connected to the rear end mechanism 12, the first end 131a being disposed in front of the second end 131 b. In the present embodiment, the distance L5 from the operation portion 211 to the first end 131a of the link device 13 is 200 mm or more, so that the distance between the operation portion 211 and the front end mechanism 11 can be made more reasonable. When the grass trimmer 100 is in the process of trimming grass, the grass can be prevented from sticking to the operating member 21 mounted thereto as much as possible, and the cleanliness of the operating member 21 is ensured. In some embodiments, the distance L5 from the operating portion 211 to the first end 131a of the connecting rod device 13 is 400 mm or more, which can further facilitate the user to operate the operating member 21 while further ensuring the cleanliness of the operating member 21.

The distance L6 between the operating portion 211 and the second end 131b of the connecting rod device 13 is 400 mm or less, so that the operating portion 211 is kept away from the front end mechanism 11 as far as possible, and the clean end of the operating member 21 can be ensured as well. In some embodiments, the distance L6 from the operating portion 211 to the second end 131b of the connecting rod device 13 is 300 mm or less, which can further facilitate the user to operate the operating member 21 while further ensuring the cleanliness of the operating member 21. In some embodiments, the ratio of the distance L5 between the operating portion 211 and the first end 131a to the distance L6 between the operating portion 211 and the second end 131b is greater than or equal to 0.8 and less than or equal to 3, so that the position of the operating portion 211 on the connecting rod device 13 is more reasonable.

As shown in fig. 6, when the grass cutter 100 is in the horizontal cutting mode with the minimum pitch angle a, the maximum distance L7 between the operating portion 211 and the front end of the grass cutter 100 in the direction along the first straight line 101 is 300 mm or more, so that the user can operate the operating member 21 to adjust the pitch angle a of the grass cutting assembly 111.

Specifically, the mower 100 further includes a main handle 122, and a trigger 122a is provided on the main handle 122, and a user starts the mower 100 to mow grass by holding the main handle 122 and operating the trigger 122 a. In the present embodiment, the rear end mechanism 12 includes a rear housing 123, the rear housing 123 being capable of detachably mounting the battery pack 121a, the rear housing 123 being further integrally formed with the main handle 122. In this embodiment, the main handle 122 is part of the back end mechanism 12. It will be appreciated that in other embodiments, the main handle 122 may be provided separately from the rear housing 123, with the main handle 122 being spaced from the rear housing 123 by a distance.

As shown in fig. 6 to 8, the main handle 122 can rotate about the first straight line 101 with respect to the front end mechanism 11. Specifically, in the present embodiment, the main handle 122 is provided so as to be rotatable about the first straight line 101 with respect to the whole of the link mechanism 13 and the front end mechanism 11. As shown in FIG. 6, the lawnmower 100 is in a horizontal cutting mode, when a user may hold the main handle 122 and rotate the main handle 122 in the direction of the arrow to the position shown in FIG. 7. As shown in fig. 7, when the main handle 122 is rotated 90 degrees around the first straight line 101, the main handle 122 is rotated from the downward state to the left state. The user then brings the mower 100 to a position in which the main handle 122 is downward, i.e., the position shown in fig. 8, and the user can operate the mower 100 to perform the trimming operation, and the mower 100 is in the trimming mode. Specifically, the user may operate the mower 100 to cut grass on the cement curb. In this embodiment, if the user needs to switch the grass trimmer 100 from the inclined cutting mode to the trimming mode, the adjusting device 20 may be operated to switch the grass cutting assembly 111 to the horizontal cutting mode, and then the main handle 122 is operated to rotate 90 degrees, at which time the user holds the main handle 122 and the grass cutting cord 100a extends in the vertical direction. Wherein, the inclined cutting mode and the horizontal cutting mode are defined as a mowing mode of the grass cutter 100.

In the present embodiment, the distance L8 between the operation portion 211 and the main handle 122 is 400 mm or less, so that the user can conveniently trigger the operation portion 211 by one hand without moving the main handle 122 by the other hand.

In this embodiment, the operating member 21 is rotatable relative to the connecting rod arrangement 13 about a first axis 102 when operated, the first axis 102 being substantially perpendicular to the first line 101. It will be appreciated that in other embodiments, the axis of rotation of the operating member 21 may be inclined relative to the first line 101. It will be appreciated that in other embodiments the operating member 21 may also be arranged to slide relative to the connecting rod arrangement 13.

As shown in fig. 1 to 8, the grass trimmer 100 further includes an auxiliary handle 23, and when the user operates the grass trimmer 100 to perform grass trimming, the user holds the main handle 122 with one hand and holds the auxiliary handle 23 with the other hand, and holds the grass trimmer 100 with both hands to achieve more stable operation. In the present embodiment, the auxiliary handle 23 is connected to or forms the above-described operation member 21. More specifically, the assist grip 23 is integrally formed with the operation member 21, and a part of the assist grip 23 serves as the operation member 21. Alternatively, in the present embodiment, the auxiliary handle 23 is the operation member 21, and the operation member 21 is the auxiliary handle 23. It will be appreciated that in other embodiments, the auxiliary handle 23 and the operating member 21 may be formed separately, but the connection is made so as to facilitate the user to selectively operate the auxiliary handle 23 and the operating member 21, and also to reduce the space required for installing the auxiliary handle 23 and the operating member 21 on the connecting rod device 13. Alternatively, in other embodiments, as shown in fig. 9, the operating member 31 may be provided separately from the auxiliary handle 33, and the operating member 31 and the auxiliary handle 33 may be mounted to different positions of the connecting rod device 32, respectively, such that the position or state of the auxiliary handle 33 with respect to the connecting rod device 32 remains unchanged when the state of the operating member 31 is changed. That is, in fig. 9, the assist grip 33 does not change with a change in the state of the operation member 31. In this way, even when the position of the operating element 31 is changed, the assist grip 33 is still in a state of being convenient for the user to operate. In fig. 9, in particular, when the user rotates the operating member 31 relative to the connecting rod arrangement 32 about the first axis, the position of the auxiliary handle 33 relative to the connecting rod arrangement 32 remains unchanged, i.e. the auxiliary handle 33 is not rotated about the first axis.

As shown in fig. 10 to 13, the drive assembly 22 is at least partially disposed within the connecting rod arrangement 13, the drive assembly 22 comprising: first transmission member 221, second transmission member 222, and connection member 223. The first transmission member 221 is connected to the operation member 21 to be driven by the operation member 21 to move, and the second transmission member 222 is connected to the grass cutting assembly 111 to drive the grass cutting assembly 111 to change the pitch angle a of the grass cutting assembly 111. The connecting member 223 connects the first transmission member 221 and the second transmission member 222 to achieve transmission of power between the first transmission member 221 and the second transmission member 222. When the user operates the operation member 21, the operation member 21 rotates around the first axis 102, the rotating operation member 21 drives the first transmission member 221 to move, the connecting member 223 transmits the movement of the first transmission member 221 to the second transmission member 222 to drive the second transmission member 222 to move, and the moving second transmission member 222 drives the grass cutting assembly 111 to move. In the present embodiment, the distance L9 between the first transmission member 221 and the second transmission member 222 is 200 mm or more and 800 mm or less.

In this embodiment, the drive assembly 22 is at least partially disposed within the connecting rod 131, which may make the appearance of the lawnmower 100 appear simpler and save space. Specifically, the first transmission member 221 is partially disposed in the connection rod 131, the first transmission member 221 is a transmission wheel, the operation member 21 includes a first mounting portion 212, the first mounting portion 212 is formed with a first transmission hole 212a, the first transmission member 221 is formed or connected with a first transmission portion 221a engaged with the first transmission hole 212a, and the first transmission portion 221a is inserted into the first transmission hole 212 a. Thus, when the operating member 21 is rotated, the operating member 21 can drive the first transmitting member 221 to rotate about an axis parallel to the first axis 102 by the engagement of the first transmitting hole 212a with the first transmitting portion 221 a. The connection member 223 is a flexible member connected to the first transmission member 221, and the flexible member is a wire rope. The connection member 223 includes two wire ropes, one end of each wire rope is connected to the first transmission member 221, and the other end is connected to the second transmission member 222. In other embodiments, the connecting member may also be a rigid member, such as a rigid long rod, through which the power transfer between the first and second transmission members is achieved. The second transmission member 222 is also a transmission wheel, which may be provided outside the connection rod 131 to be connected to the front end mechanism 11, and the front end mechanism 11 includes a front end mounting member 112 for mounting the second transmission member 222. In this embodiment, the mowing assembly 111 includes a mowing head 111a, a front end housing 111b, and a driving motor 111c, where the driving motor 111c may be a motor at least partially disposed in the front end housing 111b, and the motor is connected to the mowing head 111a to drive the mowing head 111a to rotate around the second axis 103. The front end housing 111b is for mounting a drive motor 111c and is connected to the grass cutting head 111a. The front end housing 111b includes or is connected to a second mounting portion 111d, the second mounting portion 111d forming a second transmission hole 111e, and the second transmission member 222 forming or being connected to a second transmission portion 222a insertable into the second transmission hole 111 e. Thus, when the second transmission member 222 rotates, the second transmission member 222 can drive the front housing 111b to rotate around the third axis 104 through the cooperation of the second transmission portion 222a and the second transmission hole 111e, and the front housing 111b drives the driving motor 111c and the grass cutting head 111a to rotate around the third axis 104, so that the pitch angle a of the grass cutting assembly 111 is changed. It will be appreciated that in other embodiments, the first drive aperture 212a and the first drive portion 221a may be replaced by other drive arrangements, and the first drive aperture 212a and the first drive portion 221a may be interchanged. In other embodiments, the second transmission hole 111e and the second transmission portion 222a may be replaced by other structures, and the second transmission hole 111e and the second transmission portion 222a may be exchanged. In other embodiments, the drive motor 111c may be disposed at the rear end of the mower 100, and the drive motor 111c may be disposed in the rear housing such that the front end mechanism 11 includes a front housing 111b and a mower head 111a. In the present embodiment, the grass cutting assembly 111 may be understood as a grass cutting head 111a, may be understood as an integral body of the grass cutting head 111a and the front end housing 111b, and may be understood as an integral body of the front end housing 111b, the driving motor 111c and the grass cutting head 111a. When the grass cutting assembly 111 is used to mount a blade, the grass cutting assembly 111 may be understood as a mounting mechanism for mounting the blade, and may be understood as an integral body of the mounting mechanism and the front end housing 111 b.

In the present embodiment, the connecting member 223 is at least partially disposed in the connecting rod 131, that is, the steel wire rope is threaded through the connecting rod 131.

In other embodiments, the driving assembly 22 may further include a motor for driving the grass cutting assembly 111 to change the pitch angle a, so that when the user operates the operating member 21, the operating member 21 activates the motor, and the motor drives the grass cutting assembly 111 to move so that the pitch angle a of the grass cutting assembly 111 is changed, thereby simplifying the structure of the adjusting device 20.

As shown in fig. 7 and 10, in the present embodiment, the connection member 223 is a wire rope, and the wire rope may not be tensioned after the adjusting device 20 is used for a long time, so the grass cutting machine 100 further includes a tensioning assembly 113 for tensioning the wire rope. The tensioning assembly 113 comprises a tensioning element for fixing the front end mount 112 to the connecting rod 131. When the wire rope is loosened, the user rotates the tensioning element such that the front end mount 112 is slidable with respect to the connecting rod 131, at which time the user slides the front end mount 112 forward with respect to the connecting rod 131 along the first straight line 101, at which time the second transmission 222 is also moved forward to tension the wire rope, and then rotates the tensioning element such that the front end mount 112 is again fixed to the connecting rod 131.

As shown in fig. 1 to 4, the operation member 21 is also spaced apart from the backend mechanism 12 by the second preset distance L10, that is, the operation member 21 may not be directly mounted to the backend mechanism 12, so that the user does not need to return to operate the operation member 21. The ratio of the first preset distance L3 to the second preset distance L10 is 1.5 or more and 8 or less, so that the operating member 21 is disposed at a reasonable position between the front end mechanism 11 and the rear end mechanism 12.

As shown in fig. 12 to 15, the adjusting device 20 further includes a first stopper 24 for limiting the pitch angle a of the grass cutting assembly 111 to a preset angle. In this embodiment, the first limiting member 24 is a limiting pin, the connecting rod device 13 includes a mounting member 132 for mounting the first limiting member 24, the mounting member 132 is fixedly connected with the connecting rod 131, the mounting member 132 is formed with a first accommodating hole 132a, the first limiting member 24 is partially disposed in the first accommodating hole 132a, and the first mounting portion 212 is formed with a second accommodating hole 212b into which the limiting pin can be inserted. The first receiving hole 132a is further provided therein with a first biasing member 25 for biasing the stopper pin into the second receiving hole 212b, and the first biasing member 25 is a spring. The spring is disposed in the first accommodation hole 132 a. When the biasing member biases the first stopper 24 to be inserted into the second accommodating hole 212b, the first stopper 24 restricts the operating member 21 to a preset position, so that the pitch angle a of the grass cutting assembly 111 is restricted to a preset angle. When the user operates the operating member 21, the operating member 21 can overcome the bias of the first biasing element 25 to disengage the first limiting member 24 from the second receiving hole 212b, and the second receiving hole 212b passes over the first limiting member 24 to allow the operating member 21 to rotate about the first axis 102. In the present embodiment, the user can simultaneously release the restriction of the first stopper 24 and can rotate the operation member 21 to adjust the pitch angle a of the grass cutting assembly 111 through the operation member 21. That is, the user rotates about the first axis 102 by driving the operation member 21 to unlock the operation member 21 and continue the operation to rotate the operation member 21. That is, the user can release the restriction of the first stopper 24 on the operation member 21 and adjust the pitch angle a of the grass cutting assembly 111 by only one action, so as to adjust the pitch angle a in one step, thereby facilitating the operation of the user. It will be appreciated that in other embodiments, the first stop 24 may be a stop ball, or other structure that is biased by the first biasing element 25.

In the present embodiment, the number of the first limiting members 24 is plural, and the number of the corresponding first biasing members 25 is plural, which is not limited to this.

As shown in fig. 16-19, the main handle 122 includes a main grip 122b for gripping by a user, the main handle 122 being capable of switching the lawnmower 100 between a mowing mode and a trimming mode when rotated about the first line 101. The grass cutting machine 100 further includes a limiting assembly 26, and the limiting assembly 26 includes a second limiting member 261, where the second limiting member 261 is configured to limit the main handle 122 to a preset position when the main handle 122 rotates around the first line 101 relative to the grass cutting assembly 111 to the preset position. The check assembly 26 is also configured to change the check condition as the main handle 122 is rotated about the first line 101. In the present embodiment, the change of the limit state of whether the limit assembly 26 limits the rotation of the main handle 122 is achieved by the rotation of the main handle 122 about the first line 101. Thus, the user only needs to normally rotate the main handle 122 to enable the limiting assembly 26 to be separated from the limiting state to allow the main handle 122 to rotate, so that the user can release the limitation of the limiting assembly 26 and rotate the main handle 122 further only by one rotation action.

Specifically, the check assembly 26 further includes a second biasing element 262, the second biasing element 262 generating a biasing force that biases the check member to limit rotation of the main handle 122.

Specifically, the second limiting member 261 is a movable element, such as a limiting pin, and the second biasing element 262 is a biasing spring. It is understood that in other embodiments, the second stop 261 may be a stop ball. In the present embodiment, the main handle 122 further forms a third accommodating hole 122c, the second limiting member 261 is at least partially disposed in the third accommodating hole 122c, and the second biasing member 262 is also disposed in the third accommodating hole 122c and biases the second limiting member 261. The limiting assembly 26 further includes a mating portion 263 mated with the second limiting member 261, and the main handle 122 is limited to a predetermined position by the mating of the second limiting member 261 with the mating portion 263. The biasing force of the second biasing element 262 causes the second spacing member 261 to engage the engagement portion 263. The connecting rod 131 is provided with a matching piece 133, the matching piece 133 forms the matching portion 263, and the matching portion 263 is specifically a groove into which the second limiting piece 261 can be embedded. It will be appreciated that the engagement portion 263 may also limit the protrusion that the second limiter 261 passes when rotating about the first line 101, and the protrusion allows the second limiter 261 to pass when the rotational force overcomes the biasing force.

It will be appreciated that in other embodiments, the second stop 261 may also be connected to the connecting rod device 13, while the corresponding mating portion 263 is a recess or protrusion connected to the main handle 122.

When the grass cutter 100 is in the mowing mode, the second biasing member 262 biases the second stopper 261 to engage with the engaging portion 263, and the rotation of the main handle 122 is restricted.

When it is desired to switch the lawnmower 100 from the mowing mode to the trimming mode, the user grasps the connecting rod arrangement 13 with one hand and grasps the main handle 122 with the other hand and applies a rotational force about the first line 101 to the main handle 122, the rotational force overcoming the biasing force of the second biasing element 262, the second stop 261 disengaging the mating portion 263, and the user continuing to apply a rotational force to the main handle 122, the main handle 122 rotating about the first axis 102 relative to the connecting rod arrangement 13. When the main handle 122 is rotated until the second stopper 261 is engaged with the engagement portion 263, the application of the rotational force is stopped, and the main handle 122 is restricted at a predetermined position by the second stopper 261. In the present embodiment, the number of the engaging portions 263 is plural, so that the main handle 122 can be limited to a plurality of preset positions. In the present embodiment, the number of the second limiting members 261 is plural, and the number of the second biasing members 262 is plural, so that the reliability of the limiting assembly 26 can be improved.

It will be appreciated that the spacing assembly of the present embodiment may also be used in other rod-type tools, and that the rod-type tool includes functional components for performing the functions of the tool. The working angle of the functional components of the rod-type tool can be changed by adjusting the main handle of the rod-type tool.

The mower 400 of the alternative embodiment shown in fig. 20 is substantially identical in structure to the mower 100 of fig. 1, except for the operating member 51, the auxiliary handle 53 and the tensioning assembly 413. The following mainly describes differences in the structure of the grass trimmer 400 of the present embodiment from the grass trimmer 100 in fig. 1.

As shown in fig. 20 to 22, the operating member 51 of the adjusting device 50 is connected to the auxiliary handle 53. The operating member 51 and the auxiliary handle 53 are two parts. The operating member 51 and the auxiliary handle 53 are rotatable together about the first axis 402. When the user holds the auxiliary handle 53 and the operating member 51 by hand and rotates, the whole of the auxiliary handle 53 and the operating member 51 can drive the driving assembly 52 to move, thereby driving the grass cutting assembly 411 to move so that the pitch angle A1 of the grass cutting assembly 411 is changed.

As shown in fig. 20 to 25, in the present embodiment, the grass cutter 400 further includes a locking assembly 57 for locking the rotation of the operating member 51. The locking assembly 57 includes a first locking portion 571 provided on the mounting member 432, the mounting member 432 being connected to the connection rod 431, the first locking portion 571 being specifically a locking hole formed on the mounting member 432. The operating member 51 includes a second locking portion 572 that mates with the locking aperture, the second locking portion 572 being a boss. When the first locking portion 571 and the second locking portion 572 are engaged, the rotation of the unit formed by the operating member 51 and the auxiliary handle 53 with respect to the connection lever 431 is locked. When the first locking portion 571 and the second locking portion 572 are disengaged, the mounting member 432 allows the unit of the operating member 51 and the auxiliary handle 53 to be rotated relative to the connecting rod 431, so that the adjustment device 50 can adjust the pitch angle A1 of the grass cutting assembly 411. In the present embodiment, the first locking portion 571 is a locking hole, the second locking portion 572 is a protruding portion, and the operating member 51 is further provided slidably in the second straight line 405 direction with respect to the auxiliary handle 53. As shown in fig. 24 and 25, when the operating member 51 is slid in the direction away from the mounting piece 432 along the first axis 401 with respect to the auxiliary handle 53, the boss can be disengaged from the locking hole, and the operating member 51 can be rotated about the first axis 402. In this embodiment, the locking assembly 57 further includes a reset element 573, the reset element 573 biasing the operating member 51 to move the first locking portion 571 towards engagement with the second locking portion 572. The return element 573 is a spring. When the user needs to adjust the pitch angle A1 of the grass cutting assembly 411, the user holds the auxiliary handle 53 and the operating member 51 by hand, i.e. the palm of the user is in contact with the auxiliary handle 53, and the user grips the operating member 51 and moves the operating member 51 in the direction of the second straight line 405 away from the mounting member 432, at which time the operating member 51 compresses the reset element 573 and causes the protrusions to disengage from the locking holes, and then rotates the operating member 51 and the auxiliary handle 53, and then the driving assembly 52 drives the grass cutting assembly 411 to move and change the pitch angle A1. When the user releases the operating member 51 and the auxiliary handle 53, the return element 573 drives the operating member 51 along the second straight line 405 towards the mounting member 432, the protrusions protruding into the locking holes, and the rotation of the operating member 51 is locked again.

As shown in fig. 22 and 26, the tensioning assembly 413 includes a tensioning element 413a, the tensioning element 413a being an element movable relative to the connection rod 431 in a direction of a third line 406 perpendicular to the first line 401, specifically a bolt movable along the third line 406 and rotatable about the third line 406, the bolt being mounted to the front end mount 412 mount 432. The bolt abuts against the wire rope to tension the wire rope. When the wire rope is loose, the user only needs to turn the bolt, which moves along the third straight line 406 to tighten the wire rope. The number of the bolts is 2, and two bolts can respectively tension one steel wire rope.

The foregoing has outlined and described the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the present application in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the present application.

Claims (10)

1. A rod-like tool comprising:

a front end mechanism comprising a functional component for implementing a tool function;

a connecting rod device, the front end of which is provided with the front end mechanism, and the connecting rod device comprises a connecting rod which at least partially extends along a first straight line direction;

a main handle connected to the connecting rod means, the main handle comprising a main grip portion for gripping by a user,

the main handle is arranged to rotate around the first straight line relative to the front end mechanism so as to realize the change of the working angle of the functional component;

further comprises:

the limiting assembly comprises a limiting piece used for limiting the main handle at a preset position when the main handle rotates to the preset position around the first straight line relative to the functional assembly;

the limit assembly is configured to change limit state when the primary handle is rotated about the first line.

2. The pole tool of claim 1, wherein the change in the limit state of the limit assembly is effected by rotation of the primary handle about the first line.

3. The rod-type tool of claim 1, wherein the stop assembly further comprises a biasing element that generates a biasing force that biases the stop.

4. The pole tool of claim 1, wherein the stop assembly further comprises an engagement portion that engages the stop to limit the primary handle to the predetermined position, the stop assembly further comprising a biasing element that generates a biasing force that engages the stop with the engagement portion.

5. The pole tool of claim 4, wherein the stop is disengaged from the mating portion when the main handle is rotated about the first line relative to the functional component.

6. The pole tool of claim 5, wherein the mating portion is a recess and the stop is a movable member that is driven into the recess by a biasing member.

7. The pole tool of claim 6, wherein the movable element is a pin or a ball.

8. The pole tool of claim 4, wherein the stop is connected to the main handle and the mating portion is a groove or protrusion connected to the connecting rod means.

9. The pole tool of claim 8, wherein the main handle defines a receiving aperture, the biasing element being disposed in the receiving aperture, the stop being at least partially disposed in the receiving aperture.

10. The pole tool of claim 4, wherein the stop is connected to the connecting rod means and the mating portion is a groove or protrusion connected to the main handle.