GARDEN TOOL AND PUSH ROD MECHANISM

A garden tool includes an upper push rod, a lower push rod and a control mechanism connected to the upper push rod and the lower push rod. The control mechanism includes a safety switch, an expansion-retraction locking assembly and an operation handle, a trigger configured to trigger the safety switch. The expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member for holding the limiting member in the limiting state. The operating handle is configured to rotate around a pivot shaft between a first position and a second position. The trigger member and the stopping member are connected to the pivot shaft and driven by the operating handle.

TECHNICAL FIELD

The present disclosure relates to the field of garden tools, in particular to a garden tool, and a push rod mechanism.

BACKGROUND

A garden tool, such as a lawn mower, a snow vehicle, a hand truck or the like, is arranged with an operating rod configured for pushing. The operating rod typically includes a lower push rod connected to two sides of a garden tool body and an upper push rod connected to the lower push rod. The upper push rod is arranged with a grip portion configured for pushing during an operation process of the garden tool.

Taking the lawn mower as an example, when the lawn mower is in operation, the operating rod connected to a lawn mower body extends a certain length to a rear of the lawn mower, such that an operator may work within a safe distance of a certain length away from a cutting tool. When the lawn mower is not in operation, the lawn mower needs to be collected and stored. In order to meet storage requirements, people have designed a folding way or an expansion-retraction way for the operating rod. At the same time, in order to meet safety requirements, a safety switch mechanism has been added during a folding process or an expansion-retraction process, so as to reduce a possibility of accidents. However, an existing technical solution is either too complex in structure, or has a low reliability and potential security risk.

SUMMARY OF THE DISCLOSURE

According to a first aspect of the embodiments of the present disclosure, a garden tool is provided. The garden tool includes an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state; the operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the garden tool is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the garden tool is limited from being started.

According to a second aspect of the embodiments of the present disclosure, a garden tool is provided. The garden tool includes: a body; and a push rod mechanism connected to the body. The push rod mechanism includes: an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state. The operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the body is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the body is limited from being started

According to a third aspect of the embodiments of the present disclosure, a push rod mechanism applied to a lawn mower is provided. The push rod mechanism includes: an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state; the operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the garden tool is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the garden tool is limited from being started.

DETAILED DESCRIPTION

Terms used in the present disclosure are only for the purpose of describing specific embodiments, but not intended to limit the present disclosure. For example, the following terms such as “upper”, “lower”, “front”, “rear” indicating orientation or positional relationships are only based on the orientation or positional relationships shown in the accompanying drawings, for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device/element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present disclosure.

The present disclosure is not limited to the detailed description. Those skilled in the art may easily understand that there are many alternative embodiments of a garden tool of the present disclosure without departing from the principles and scope of the present disclosure. The scope of the present disclosure is defined by the claims.

As shown inFIG.1, a garden tool provided by the embodiments of the present disclosure is a lawn mower100. In other embodiments, the garden tool may also be a hand truck, a snow sweeper, or the like.

As shown inFIG.1andFIG.2, the lawn mower100includes an upper push rod12and a lower push rod11relatively extendible and retractable to the upper push rod12, and a control mechanism connected to the upper push rod12and the lower push rod11. The control mechanism includes a safety switch6, an expansion-retraction locking assembly8, and an operating handle14. The control mechanism further includes a trigger member16configured to trigger the safety switch6. The expansion-retraction locking assembly8includes a limiting member capable of being operated to enter between the upper push rod12and the lower push rod11to limit an expansion and retraction of the upper push rod12relative to the lower push rod11, and a stopping member configured to maintain the limiting member in a position-limiting state. The operating handle14may be configured to rotate, around a pivot shaft15, between a first position and a second position. The trigger member16and the stopping member are connected to the pivot shaft15and are driven by the operating handle14. When the operating handle14is in the first position, the stopping member abuts against the limiting member, such that the upper push rod12is fixed relative to the lower push rod11; the safety switch6is not triggered by the trigger member16, and the lawn mower100is allowed to start. When the operating handle14is in the second position, the safety switch6is triggered, and at the same time, the stopping member is separated from limiting member; the upper push rod12is movably connected to the lower push rod11, and the lawn mower100is limited from being started.

The operating handle14of the lawn mower100rotates between the second position and the first position, such that the safety switch6is triggered, and the position limiting of the limiting member is released at the same time, so as to ensure the operation safety of the lawn mower100. At the same time, the operating handle14, the trigger member16of the safety switch6, and the stopping member configured to perform an expansion-retraction controlling operation rotate around the same pivot shaft15, such that at least two operations may be completed synchronously with just one-step operation of the operating handle14, thereby making the operation simple and the structure exquisite.

The safety switch6is a contact switch or a hall switch. In an embodiment, the safety switch6is a contact switch. The lawn mower100further includes an operating grip3located above the control mechanism, and the operating grip3is arranged with a start switch4. The safety switch6is connected to the start switch4by means of a signal connection. When the safety switch6is triggered, the start switch4is limited from being started, and the lawn mower100cannot perform an mowing operation. However, when the safety switch6is not triggered, the start switch4is allowed to start, and the user may turn on the start switch4to perform the mowing operation.

As shown inFIGS.2to7, the control mechanism includes a housing13, the pivot shaft15is supported in the housing13, and the trigger member16is formed into a cam protruding radially out of the pivot shaft15. A rotation radius of the cam changes evenly along a peripheral direction of the pivot shaft15. When the operating handle14is in the second position (as shown inFIG.3andFIG.6), the maximum-radius portion of the cam is in contact with the safety switch6.

The safety switch6includes a switch housing63, a button62protruding out of the switch housing63, and an excitation rod61extending outward from the switch housing63. The excitation rod61is located on a top of the button62. When the operating handle14is rotated to the second position, the maximum-radius portion of the cam abuts against the excitation rod61, so as to trigger the button62. As the operating handle14is rotated to the first position (as shown inFIG.4andFIG.7), the maximum-radius portion of the cam is away from the excitation rod61along a peripheral direction of the pivot shaft15. Instead, the minimum-radius portion faces the excitation rod61, and thus the safety switch6cannot be triggered. Therefore, when the operating handle14is fixed to the first position, the safety switch6is not triggered, and the lawn mower100may be turned on to perform mowing operation.

Two embodiments of the expansion-retraction locking assembly8are provided, namely a first locking assembly and a second locking assembly, and both locking assemblies coexist in an embodiment and are linked to the operating handle14. In other words, the operating handle14rotates between the first position and the second position, and thus it not only affects the triggering of the safety switch6, but also has a consistent limiting or unlocking effect on the first assembly and the second locking assembly.

As shown inFIG.3,FIG.4, andFIGS.8to10, in the first locking assembly, the stopping member is a baffle19extending radially outward from the pivot shaft15, and the baffle19and the trigger member16are arranged at intervals along the axial direction of the pivot shaft15. The baffle19is arranged coaxially with the cam, namely, the trigger member16, and the baffle19and the cam, namely, the trigger member16, rotate simultaneously as the operating handle14rotates.

In this case, the limiting member is a limiting plate17pivotally arranged on the housing13and a limiting ball18received in the limiting plate17. The lower push rod11is arranged with a positioning hole111configured to receive the limiting ball18, and the upper push rod12is arranged with a limiting hole121configured to receive the limiting ball18. Only when the upper push rod12extends and retracts to a specified position relative to the lower push rod11, the positioning hole111is coincided with the limiting hole121. When the upper push rod12extends and retracts in place, the positioning hole111is coincided with the limiting hole121, and the limiting ball18enters between the positioning hole111and the limiting hole121to limit a relative movement between the upper push rod12and the lower push rod11. It is worth mentioning that, the limiting plate17may be pivotally arranged in the housing13, such that the limiting ball18may exit the positioning hole111and the limiting hole121as the limiting plate17moves pivotally, thereby allowing the upper push rod12to extend and retract relative to the lower push rod11. In the embodiment, a plane where a pivot171of the limiting plate17is located is substantially perpendicular to the pivot shaft15of the operating handle14.

As further shown inFIGS.3,4,9, and10, the expansion-retraction locking assembly8includes an elastic member81located between the limiting plate17and the housing13. The elastic member81drives the limiting plate17to have a tendency to drive the limiting ball18to move along a direction close to the positioning hole111. The elastic member81is a compression spring. The compression spring between the housing13and the limiting plate17has an elastic force that returns to a natural length. The elastic force drives the limiting plate17to move along the direction close to the positioning hole111, such that the limiting ball18always has a tendency to enter between the positioning hole111and the limiting hole121to limit the expansion and retraction of the upper push rod12relative to the lower push rod11. In this way, it may be possible to ensure that the upper push rod12and the lower push rod11keep in an extended state to reduce a case of being easily retracted.

In addition, in the axial direction of the pivot shaft15, the baffle19and the limiting plate17are arranged next/adjacent to each other. When the operating handle14is rotated to the first position (as shown inFIG.4andFIG.10), a position of the baffle19is coincided with a position of the limiting plate17along the peripheral direction of the pivot shaft15, thereby limiting the limiting plate17to move pivotably (i.e., the pivot movement of the limiting plate17is limited).

When the baffle19rotates with the operating handle14, in the peripheral direction of the pivot shaft15, there are two positions between the baffle19and the limiting plate17, that is, one of the two positions is that the baffle19is at least partially coincided with the limiting plate17, and the other one of the two positions is that the baffle19is staggered with the limiting plate17. When the operating handle14is in the first position (as shown inFIG.4andFIG.10), the baffle19is coincided with the limiting plate17, and the baffle19limits the limiting plate17to move pivotably. In this way, the limiting plate17is unable to rotate around the pivot171in a direction away from the positioning hole111, at this time, the limiting ball18is fixed between the positioning hole111and the limiting hole121, and the upper push rod12cannot perform an expansion-retraction operation relative to the lower push rod11. When the operating handle14is in the second position (as shown inFIG.3andFIG.9), a movable space for the limiting plate17is provided by the baffle19, and the limiting ball18is allowed to exit the positioning hole111. At this time, if the user applies a certain force, the upper push rod12is easy to overcome a resistance of the limiting ball18, such that an edge of the limiting hole121crosses the limiting ball18and pushes the limiting ball18out of the positioning hole111, thereby achieving the expansion-retraction operation of the upper push rod12relative to the lower push rod11.

As further shown inFIG.8-FIG.10, in the embodiment, the second expansion-retraction locking assembly may be regarded as a supplement to the first expansion-retraction locking assembly, which has a further stabilizing and strengthening effect on the expansion-retraction locking effect. In other embodiments, the first expansion-retraction locking assembly and the second expansion-retraction locking assembly may be used alternatively to achieve the expansion-retraction locking function independently. In the second expansion-retraction locking assembly, the stopping member is a second cam82radially protruding out of the pivot shaft15. The second cam82has a long-diameter portion and a short-diameter portion around the peripheral direction of the pivot shaft15. When the operating handle14is rotated to the first position (as shown in FIG.10), the long-diameter portion of the second cam82faces the lower push rod11. The long-diameter portion of the cam acts as a pressure abutting against the lower push rod11and the upper push rod12, thereby increasing a friction force required for the upper push rod12to extend and retract relative to the lower push rod11. Furthermore, the second cam82is located on an end of the pivot shaft15, and the second cam82is located at a side of the lower push rod11, the side is adjacent to a side of the lower push rod11where the limiting plate17is located at. That is, two expansion-retraction locking methods face two different side surfaces of the lower push rod11, simultaneously play a limiting role, and simultaneously unlock, thereby ensuring the stability of the locking.

In the second expansion-retraction locking assembly, a strip-shaped hole113is defined on a side of the lower push rod11facing the long-diameter portion and is configured to receive the second cam82. The limiting member is a flexible member83received in the strip-shaped hole113. When the operating handle14is in the first position, the long-diameter portion causes the flexible member83to abut against a position between the upper push rod12and the lower push rod11. By arranging the strip-shaped hole113and the flexible member83, it may be possible to facilitate the second cam82to play a more significant effect on the upper push rod12and the lower push rod11. In the first position (as shown inFIG.10), the second cam82drives the flexible member83to pass through the strip-shaped hole113and directly abut against a pipe wall of the upper push rod12, resulting in a greater force. At the same time, the flexible member83is in contact with the pipe wall of the upper push rod12, so as to increase a blocking effect. In this way, when the operating handle14is in the first position, if the user forcibly extends and retracts the upper push rod12, a strong resistance is generated and it is difficult to achieve the expansion-retraction operation.

Of course, if the user needs to extend and retract the upper push rod12, it only needs to rotate the operating handle14from the first position to the second position (as shown inFIG.9). At this time, the second cam82rotates to the short-diameter portion and contacts the flexible member83, so that the flexible member83no longer abuts against the pipe wall of the upper push rod12. At the same time, the baffle19rotates from a position that the baffle19is coincided with the limiting plate17in the peripheral direction and axially abuts against the limiting plate17to a position that the baffle19is staggered with the limiting plate17in the peripheral direction, such that two groups of expansion-retraction locking assemblies8release the limiting effect between the upper push rod12and the lower push rod11. In this way, the user only needs to apply a certain tension or pressure on the second push rod, so as to overcome the resistance of the limiting ball18and squeeze the limiting ball18out of the positioning hole111, and thus the expansion or retraction operation may be performed until the expansion or retraction operation is performed in place. At the same time, the positioning hole111is coincided with the limiting hole121, and the limiting ball18enters the positioning hole111and the limiting hole121again under an elastic force, thereby achieving the fixation of the upper push rod12relative to the lower push rod11. It should be noted that, at this time, the safety switch6is triggered by the trigger member16, and the lawn mower100is in a state that cannot start mowing.

Furthermore, if the upper push rod12is in the extended position relative to the lower push rod11at this time, and the user needs to perform a lawn mowing operation, it only needs to turn the operation handle14back to the first position, such that the baffle19returns to the position where the limiting plate17is limited, and the long-diameter portion of the second cam82abuts against a position between the upper push rod12and the lower push rod11through the flexible member83, thereby achieving the expansion-retraction locking. At the same time, the short-diameter portion of the cam of the trigger member16faces the safety switch6, and the safety switch6is not triggered, which no longer limits the start switch4of the lawn mower100. In this way, the user may start the start switch4to perform the lawn mowing operation.

In addition, the control mechanism further includes a suspension member7rotating around the pivot shaft15. The suspension member7is arranged with a hook71, and is arranged on an opposite side of the operation handle14. A stopper72is arranged between the suspension member7and the operation handle14. The suspension member7and the operation handle14deviate from a certain angle along the peripheral direction of the pivot shaft15. Only when the operation handle14is in the first position, the stopper72abuts against the suspension member7, such that the suspension member7is protruded out of the operating handle14. By arranging the suspension member7, it may further play a linkage effect of the operating handle14, such that the push rod mechanism1may be connected to a body2of the lawn mower100during storage, thereby enhancing the stability of the push rod mechanism1during storage.

In summary, when the operating handle14provided by the present disclosure rotates, the trigger member16of the safety switch6, the baffle19of the limiting plate17, the second cam82abutting against the flexible member83, and the suspension configured to stabilize the push rod mechanism1are driven to move synchronously, and thus it has an exquisite structure, a simple operation, and a high stability, thereby ensuring the operation safety and the operation convenience of the lawn mower100.

According to a first aspect of the embodiments of the present disclosure, a garden tool is provided. The garden tool includes an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state; the operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the garden tool is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the garden tool is limited from being started.

In some embodiments, the safety switch is a contact switch or a hall switch.

In some embodiments, the control mechanism includes a housing extending along a front-to-rear direction, the pivot shaft is supported in the housing, the trigger member is formed into a cam protruding radially out of the pivot shaft, a rotation radius of the cam changes uniformly along a peripheral direction of the pivot shaft, and a maximum-radius portion of the cam is in contact with the safety switch in response to the operating handle being in the second position.

In some embodiments, the stopping member includes a baffle extending radially outward from the pivot shaft, and the baffle and the trigger member are arranged separately along an axial direction of the pivot shaft.

In some embodiments, the baffle is arranged coaxially with the trigger member.

In some embodiments, the limiting member includes a limiting plate pivotably arranged on the housing and a limiting ball received in the limiting plate, the lower push rod is arranged with a positioning hole configured to receive the limiting ball, the upper push rod is arranged with a limiting hole configured to receive the limiting ball, and only in response to the upper push rod extending and retracting to a specified position relative to the lower push rod, the positioning hole is coincided with the limiting hole.

In some embodiments, a plane where a pivot of the limiting plate is located is perpendicular to the pivot shaft of the operating handle.

In some embodiments, the expansion-retraction locking assembly includes an elastic member arranged between the limiting plate and the housing, and the elastic member drives the limiting plate to have a tendency to drive the limiting ball to move in a direction close to the positioning hole.

In some embodiments, in the axial direction of the pivot shaft, the baffle and the limiting plate are arranged adjacent to each other, and in response to the operating handle being rotated to the first position, the baffle is coincided with the limiting plate along a peripheral direction of the pivot shaft to limit a pivot movement of the limiting plate.

In some embodiments, in response to the baffle rotating with the operating handle, in the peripheral direction of the pivot shaft, the baffle is at least partially coincided with the limiting plate, or the baffle is staggered with the limiting plate.

In some embodiments, the stopping member includes a second cam projecting radially out of the pivot shaft, the second cam has a long-diameter portion and a short-diameter portion in a peripheral direction of the pivot shaft, and in response to the operating handle being rotated to the first position, the long-diameter portion of the second cam faces the lower push rod.

In some embodiments, a side of the push rod facing the long-diameter portion is arranged with a strip-shaped hole configured to receive the second cam, and the limiting member includes a flexible member received in the strip-shaped hole, and in response to the operating handle being in the first position, the long-diameter portion causes the flexible member to abut against a position between the upper push rod and the lower push rod.

In some embodiments, the control mechanism further includes a suspension member rotating around the pivot shaft, the suspension member is arranged on an opposite side of the operation handle, and a stopper is arranged between the suspension member and the operation handle; and the suspension member and the operation handle deviate from each other by a certain angle along a peripheral direction of the pivot shaft, only in response to the operating handle is in the first position, the stopper abuts against the suspension member, such that the suspension member is protruded out of the operating handle.

In some embodiments, the suspension member is arranged with a hook.

In some embodiments, the expansion-retraction locking assembly includes a first locking assembly and a second locking assembly, and the first locking assembly and the second locking assembly are linked to the operating handle.

In some embodiments, the safety switch includes a switch housing, a button protruding out of the switch housing, and an excitation rod extending outward from the switch housing and located on a top of the button.

In some embodiments, the garden tool further includes an operating grip located above the control mechanism, where the operating grip is arranged with a start switch.

In some embodiments, the operating grip is arranged with a start switch. The safety switch is connected to the start switch by means of a signal connection; in response to the safety switch being triggered, the start switch is limited from being started; in response to the safety switch is not triggered, the start switch is allowed to start.

According to a second aspect of the embodiments of the present disclosure, a garden tool is provided. The garden tool includes: a body; and a push rod mechanism connected to the body. The push rod mechanism includes: an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state. The operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the body is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the body is limited from being started

According to a third aspect of the embodiments of the present disclosure, a push rod mechanism applied to a lawn mower is provided. The push rod mechanism includes: an upper push rod and a lower push rod relatively extendible and retractable to the upper push rod; and a control mechanism, connected to the upper push rod and the lower push rod, where the control mechanism includes a safety switch, an expansion-retraction locking assembly, an operating handle, and a trigger member configured to trigger the safety switch, and the expansion-retraction locking assembly includes a limiting member capable of being operated to enter between the upper push rod and the lower push rod to limit an expansion and retraction of the upper push rod relative to the lower push rod, and a stopping member configured to maintain the limiting member in a position-limiting state; the operating handle is configured to rotate around a pivot shaft between a first position and a second position, and the trigger member and the stopping member are connected to the pivot shaft and are driven by the operating handle; in response to the operating handle being in the first position, the stopping member abuts against the stopping member, the upper push rod is fixed relative to the lower push rod, the safety switch is not triggered by the trigger member, and the garden tool is allowed to start; and in response to the operating handle being in the second position, the safety switch is triggered, the stopping member is separated from the limiting member, the upper push rod is movably connected to the lower push rod, and the garden tool is limited from being started.

The present disclosure is not limited to the above-mentioned embodiments of the present disclosure. Those skilled in the art may easily understand that there are many alternative solutions of the garden tool of the present disclosure without departing from the principle and purpose of the present disclosure. The scope of the present disclosure is defined by the claims.