Start-stop device and garden tool

Abstract

The present invention relates to the technical field of garden tools, and discloses a start-stop device and a garden tool. The start-stop device includes a housing, an emergency stop button, a flip cover and an emergency stop switch. The emergency stop button can be pressed and installed on the housing, and a first extension arm is provided at the bottom of the emergency stop button; the flip cover is rotatably installed on the housing, and a second extension arm is provided at the bottom of the flip cover; the emergency stop switch includes a rotating block, and the rotating block is rotatably installed in the housing; by pressing the emergency stop button, the first extension arm can contact the first end of the rotating block and drive the rotating block to rotate along the first direction, so that the emergency stop switch is in a power-off state; by pressing the flip cover, the second extension arm can contact the second end of the rotating block and drive the rotating block to rotate along the second direction, so that the emergency stop switch is in a conducting state; the first direction is opposite to the second direction. The present invention has a reliable structure, avoids the problem of emergency stop failure caused by insufficient trigger stroke of the emergency stop button, and the present invention requires fewer parts, saving costs.

Description

Technical Field

[0001] The invention relates to the technical field of garden tools, and in particular to a start-stop device and a garden tool. Background Art

[0002] Outdoor gardening tools such as lawn mowers are all provided with a start-stop device that is convenient for users to operate, and users can start and stop the lawn mower through the start-stop device.

[0003] like Figure 1 As shown, the existing lawn mower start-stop device includes a housing, an emergency stop button, an emergency stop switch and a flip cover. The emergency stop button is installed on the housing, the emergency stop switch is installed inside the housing and is located below the emergency stop button, and the flip cover is rotatably installed on the housing. When the emergency stop button is pressed, the contact of the emergency stop button can trigger the emergency stop switch, so that the emergency stop switch is in a power-off state, and the flip cover rotates and pops up; a limit slider is also provided in the housing. When the emergency stop button is pressed, the limit slider pops up, and the emergency stop button is stopped by the limit slider, so that the emergency stop switch is always in a compressed state. When the flip cover is pressed, the limit slider can be disengaged from its original position, releasing the stop of the emergency stop button. Since the emergency stop switch is a self-resetting switch, the emergency stop button is popped up and reset by the elastic member in the emergency stop switch, so that the emergency stop switch is in a conducting state and the machine starts. The disadvantage of this type of structure is that when the machine needs to be stopped urgently, the emergency stop switch needs to be kept pressed by the emergency stop button. Under outdoor conditions, plastic parts such as the emergency stop button are prone to deformation, and the emergency stop button may not have enough trigger travel, resulting in emergency stop failure. Summary of the invention

[0004] Based on the above, the purpose of the present invention is to provide a start-stop device and a garden tool to solve the problem in the related art that the emergency stop button is prone to insufficient trigger travel, resulting in emergency stop failure.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A start-stop device, comprising:

[0007] An emergency stop button is configured to be pressably mounted on a housing of the machine, wherein a first extension arm is provided at the bottom of the emergency stop button;

[0008] A flip cover is configured to be rotatably mounted on the housing, and a second extension arm is provided at the bottom of the flip cover;

[0009] The emergency stop switch comprises a rotating block, which is configured to be rotatably installed in the shell; by pressing the emergency stop button, the first extension arm can contact the first end of the rotating block and drive the rotating block to rotate in a first direction, so that the emergency stop switch is in a power-off state; by pressing the flip cover, the second extension arm can contact the second end of the rotating block and drive the rotating block to rotate in a second direction, so that the emergency stop switch is in a power-on state; the first direction is opposite to the second direction.

[0010] As a preferred solution of the start-stop device, a first locking portion is provided at one end of the emergency stop button close to the flip cover, and a second locking portion is provided at one end of the flip cover close to the emergency stop button; by pressing the flip cover, the first locking portion and the second locking portion can cooperate with each other to lock the flip cover and the emergency stop button; by pressing the emergency stop button, the first locking portion and the second locking portion can be disengaged from each other to unlock the flip cover and the emergency stop button.

[0011] As a preferred solution of the start-stop device, the first locking part is a latching protrusion, and the second locking part is a latching platform, and the latching protrusion can be latched and cooperated with the latching platform; a sliding guide part is provided at the edge of the latching platform, and the sliding guide part can make the latching protrusion and the latching platform slide relative to each other under the action of external force, so that the latching protrusion and the latching platform can be latched or disengaged from each other.

[0012] As a preferred solution of the start-stop device, the flip cover is configured to be rotatably mounted on the shell via a first rotating shaft; a first elastic member is arranged between the flip cover and the shell, and the first elastic member is used to flip the flip cover outward and open after the flip cover is unlocked from the emergency stop button.

[0013] As a preferred solution of the start-stop device, the rotating block is configured to be rotatably installed in the shell through a second rotating shaft; the emergency stop switch also includes a switch connector, which is configured to be fixed in the shell, the rotating block is connected to one terminal of the switch connector, and the second end of the rotating block is close to another terminal of the switch connector; by rotating the rotating block in a first direction, the two terminals of the switch connector can be disconnected, so that the emergency stop switch is in a power-off state; by rotating the rotating block in a second direction, the two terminals of the switch connector can be electrically connected, so that the emergency stop switch is in a conducting state.

[0014] As a preferred solution of the start-stop device, a second elastic member is provided between the emergency stop button and the housing, and the emergency stop button is reset by the second elastic member after being pressed.

[0015] As a preferred solution of the start-stop device, after the emergency stop button is pressed, the second end of the rotating block is pushed upward to reset.

[0016] As a preferred solution of the start-stop device, the flip cover is a transparent part.

[0017] A garden tool comprises the start-stop device described in any one of the above schemes.

[0018] As a preferred embodiment of a garden tool, the garden tool is a robot lawn mower.

[0019] The beneficial effects of the present invention are:

[0020] The start-stop device of the present invention can make the first extension arm contact with the first end of the rotating block and drive the rotating block to rotate in the first direction by pressing the emergency stop button, so that the emergency stop switch is in a power-off state; by pressing the flip cover, the second extension arm can contact with the second end of the rotating block and drive the rotating block to rotate in the second direction, so that the emergency stop switch is in a conducting state. The power-off state of the emergency stop switch of the present invention is directly and instantly triggered after the emergency stop button is pressed, and does not require related structures such as limit sliders to apply force to maintain the corresponding state. The structure is more reliable, avoiding the problem of emergency stop failure caused by insufficient trigger stroke of the emergency stop button; and the present invention requires fewer parts, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a start-stop device in the prior art;

[0022] Figure 2 is a schematic diagram of the structure of a garden tool provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the start-stop device provided by an embodiment of the present invention in a normal state;

[0024] Figure 4 is a schematic structural diagram of a start-stop device provided by an embodiment of the present invention in an open state;

[0025] Figure 5 yes Figure 4 A partial enlarged view of the middle card table.

[0026] Figure 1 middle:

[0027] 10-housing; 20-emergency stop button; 30-flip cover; 40-emergency stop switch; 50-limit slider;

[0028] Figure 2-Figure 5 middle:

[0029] 100-mower; 1-housing; 2-emergency stop button; 21-first extension arm; 22-clamping protrusion; 3-flip cover; 31-second extension arm; 32-clamping platform; 321-sliding guide; 4-emergency stop switch; 41-rotating block; 42-second rotating shaft; 43-switch connector. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 2-Figure 5 As shown, this embodiment provides a start-stop device that can be used in garden tools or other machines to control the emergency stop and start of the machine. This embodiment takes the application of the start-stop device to a lawn mower 100 as an example for explanation.

[0035] The lawn mower 100 of this embodiment includes a housing 1, and a start-stop device is installed on the housing 1. The start-stop device includes an emergency stop button 2, a flip cover 3 and an emergency stop switch 4, wherein the emergency stop button 2 can be pressed and installed on the housing 1, and a first extension arm 21 extending toward the emergency stop switch 4 is provided at the bottom of the emergency stop button 2. The flip cover 3 is rotatably installed on the housing 1 through a first rotating shaft, and a second extension arm 31 extending toward the emergency stop switch 4 is provided at the bottom of the flip cover 3. The emergency stop switch 4 includes a rotating block 41, which is rotatably installed in the housing 1, and the end of the rotating block 41 close to the emergency stop button 2 is the first end, and the end of the rotating block close to the flip cover 3 is the second end. Preferably, the rotating block 41 of this embodiment is rotatably installed in the housing 1 through a second rotating shaft 42, and the first end and the second end of the rotating block 41 are respectively located on both sides of the radial direction of the second rotating shaft 42, so that the device structure can be simplified and the movement stability of the rotating block 41 can be improved. In this embodiment, by pressing the emergency stop button 2, the first extension arm 21 can contact the first end of the rotating block 41 and drive the rotating block 41 to rotate in the first direction, so that the emergency stop switch 4 is in the power-off state; by pressing the flip cover 3, the second extension arm 31 can contact the second end of the rotating block 41 and drive the rotating block 41 to rotate in the second direction, so that the emergency stop switch 4 is in the power-on state. In this embodiment, the first direction is opposite to the second direction; illustratively, in this embodiment, the first direction is the direction in which the rotating block 41 rotates clockwise, and the second direction is the direction in which the rotating block 41 rotates counterclockwise.

[0036] Since the power-off state of the emergency stop switch 4 in this embodiment is directly and instantly triggered after the emergency stop button 2 is pressed, there is no need for related structures such as a limit slider to apply force to maintain the corresponding state. Its structure is more reliable, avoiding the problem of emergency stop failure caused by insufficient trigger stroke of the emergency stop button 2. Moreover, this embodiment requires fewer parts, saving costs.

[0037] Furthermore, the emergency stop button 2 and the flip cover 3 of the present embodiment are relatively arranged on the shell 1, and a first locking portion is provided at one end of the emergency stop button 2 close to the flip cover 3, and a second locking portion is provided at one end of the flip cover 3 close to the emergency stop button 2; by pressing the flip cover 3, the first locking portion and the second locking portion can cooperate with each other to lock the flip cover 3 and the emergency stop button 2, and the start-stop device is in a normal state (i.e., the emergency stop switch 4 is turned on); by pressing the emergency stop button 2, the first locking portion and the second locking portion can be disengaged from each other to unlock the flip cover 3 and the emergency stop button 2, and the flip cover 3 can be flipped open, and the start-stop device is in an open state (i.e., the emergency stop switch 4 is powered off).

[0038] Preferably, the first locking part of the present embodiment is a clamping protrusion 22 arranged at one end of the emergency stop button 2, and the second locking part is a clamping platform 32 arranged at one end of the flip cover 3. The clamping protrusion 22 can be clamped and matched with the clamping platform 32, so as to lock the flip cover 3 and the emergency stop button 2 with each other. Furthermore, a sliding guide part 321 is provided at the edge of the clamping platform 32, and the sliding guide part 321 can make the clamping protrusion 22 and the clamping platform 32 slide relative to each other under the action of external force, so that the clamping protrusion 22 and the clamping platform 32 can switch to a mutually clamped state or switch to a mutually disengaged state. Such a setting has a simple structure, and makes the locking of the emergency stop button 2 and the flip cover 3 reliable, and the opening and closing operation is convenient.

[0039] Furthermore, a first elastic member is provided between the flip cover 3 and the housing 1 of the present embodiment, and the first elastic member makes the flip cover 3 have a tendency to move in a direction away from the emergency stop switch 4, so that the flip cover 3 can be automatically flipped outward and opened after the flip cover 3 and the emergency stop button 2 are unlocked. In the present embodiment, preferably, the first elastic member is a torsion spring, and the torsion spring is installed on the first rotating shaft. Of course, in other embodiments, the first elastic member can also be other structures such as an elastic sheet.

[0040] Preferably, the emergency stop switch 4 of this embodiment further includes a switch connector 43, which is fixed in the housing 1 and connected to the controller of the lawn mower. The switch connector 43 includes two wiring terminals, one of which is connected to the second end of the rotating block 41, and the other is located near the second end of the rotating block 41, and the two wiring terminals can be selectively turned on. Specifically, by rotating the rotating block 41 in a first direction, the two wiring terminals of the switch connector 43 can be disconnected, so that the emergency stop switch 4 is in a power-off state; by rotating the rotating block 41 in a second direction, the two wiring terminals of the switch connector 43 can be electrically connected, so that the emergency stop switch 4 is in a conducting state.

[0041] In an optional embodiment of the present invention, the emergency stop button 2 can be automatically reset by the action of the elastic structure after being pressed. Specifically, a second elastic member is provided between the emergency stop button 2 and the housing 1, and the second elastic member makes the emergency stop button 2 have a tendency to move away from the emergency stop switch 4. When the emergency stop button 2 is pressed by the user, the emergency stop switch 4 is powered off, and then the user releases the emergency stop button 2, and the emergency stop button 2 is automatically reset under the elastic action of the second elastic member. This structure is simple to operate and reliable in operation. In this embodiment, the second elastic member can be a compression spring or other elastic structure.

[0042] In another optional embodiment of the present invention, after being pressed, the emergency stop button 2 can be reset by the pushing action of the rotating block 41. Specifically, when the user presses the flip cover 3 downward, the second extension arm 31 of the flip cover 3 contacts the second end of the rotating block 41 and drives the rotating block 41 to rotate along the second direction. At this time, the second end of the flip block 41 descends and the first end rises, so that the first end of the rotating block 41 can contact and drive the emergency stop button to move upward and return to the normal position. This structure omits the setting of the elastic member, and the structure is simpler and the cost is low.

[0043] In this embodiment, the lawn mower 100 is provided with components such as a control panel, a control switch and a display screen, and the flip cover 3 is provided above the above components to protect the components. In order to facilitate the user to timely observe the information of the control panel, the display screen and other components, in this embodiment, the flip cover 3 is preferably provided as a transparent member.

[0044] The embodiment of the present invention further provides a garden tool, comprising the above-mentioned start-stop device. The garden tool may be a lawn mower, a branch trimmer, a pesticide sprayer, etc. In this embodiment, preferably, the garden tool is a robot lawn mower to realize functions such as automatic mowing, automatic cleaning of grass clippings, and automatic walking. By adopting the above-mentioned start-stop device, the garden tool of this embodiment has a more reliable structure, avoids the problem of emergency stop failure caused by insufficient trigger stroke of the emergency stop button 2, and requires fewer parts, saving costs.

[0045] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A start-stop device, characterized in that: include: An emergency stop button (2) is configured to be pressably mounted on a housing (1) of a machine, wherein a first extension arm (21) is provided at the bottom of the emergency stop button (2); A flip cover (3) is configured to be rotatably mounted on the housing (1), and a second extension arm (31) is provided at the bottom of the flip cover (3); The emergency stop switch (4) comprises a rotating block (41), wherein the rotating block (41) is configured to be rotatably mounted in the housing (1); by pressing the emergency stop button (2), the first extension arm (21) can contact the first end of the rotating block (41) and drive the rotating block (41) to rotate in a first direction, so that the emergency stop switch (4) is in a power-off state; by pressing the flip cover (3), the second extension arm (31) can contact the second end of the rotating block (41) and drive the rotating block (41) to rotate in a second direction, so that the emergency stop switch (4) is in a power-on state; the first direction is opposite to the second direction.

2. The start-stop device according to claim 1, characterized in that: A first locking portion is provided at one end of the emergency stop button (2) close to the flip cover (3), and a second locking portion is provided at one end of the flip cover (3) close to the emergency stop button (2); by pressing the flip cover (3), the first locking portion and the second locking portion can cooperate with each other to lock the flip cover (3) and the emergency stop button (2); by pressing the emergency stop button (2), the first locking portion and the second locking portion can be disengaged from each other to unlock the flip cover (3) and the emergency stop button (2).

3. The start-stop device according to claim 2, characterized in that: The first locking portion is a latching protrusion (22), and the second locking portion is a latching platform (32). The latching protrusion (22) can be latched and matched with the latching platform (32). A sliding guide portion (321) is provided at the edge of the latching platform (32). The sliding guide portion (321) can make the latching protrusion (22) and the latching platform (32) slide relative to each other under the action of an external force, so that the latching protrusion (22) and the latching platform (32) can be latched with each other or disengaged from each other.

4. The start-stop device according to claim 1, characterized in that: The flip cover (3) is configured to be rotatably mounted on the shell (1) via a first rotating shaft; a first elastic member is provided between the flip cover (3) and the shell (1), and the first elastic member is used to flip the flip cover (3) outward and open after the flip cover (3) and the emergency stop button (2) are unlocked.

5. The start-stop device according to claim 1, characterized in that: The rotating block (41) is configured to be rotatably installed in the housing (1) via a second rotating shaft (42); the emergency stop switch (4) further comprises a switch connector (43), the switch connector (43) being configured to be fixed in the housing (1), the rotating block (41) being connected to a wiring terminal of the switch connector (43), and the second end of the rotating block (41) being close to another wiring terminal of the switch connector (43); the two wiring terminals of the switch connector (43) can be disconnected by rotating the rotating block (41) in a first direction, so that the emergency stop switch (4) is in a power-off state; the two wiring terminals of the switch connector (43) can be electrically connected by rotating the rotating block (41) in a second direction, so that the emergency stop switch (4) is in a power-on state.

6. The start-stop device according to any one of claims 1 to 5, characterized in that: A second elastic member is provided between the emergency stop button (2) and the housing (1), and the emergency stop button (2) is reset by the second elastic member after being pressed.

7. The start-stop device according to any one of claims 1 to 5, characterized in that: After the emergency stop button (2) is pressed, it is reset by being pushed upward by the second end of the rotating block (41).

8. The start-stop device according to any one of claims 1 to 5, characterized in that: The flip cover (3) is a transparent piece.

9. A garden tool, characterized in that: Comprising a start-stop device as described in any one of claims 1-8.

10. The garden tool according to claim 9, characterized in that: The garden tool is a robot lawn mower.

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