Emergency stop device and intelligent mower

Abstract

The utility model discloses an emergency stop device which comprises an emergency stop button, a reset mechanism, an emergency stop trigger mechanism, a button balance mechanism and a button support, the button support is fixed on a machine shell of a mower, the button balance mechanism is fixed on the button support, and after a user presses the emergency stop button connected with the reset mechanism, the button balance mechanism is reset. The scram trigger mechanism arranged on the scram button and the button support is triggered to execute the scram action on the mower, and in the set pressing stroke of the scram button, the pressing point on the scram button abuts against the button balance mechanism. The utility model further discloses the intelligent mower. According to the utility model, the button bracket is provided with the button balance mechanism matched with the scram button structure, so that when the scram button is pressed, the pressing point on the scram button can be propped against the button balance mechanism, the effective pressing action of the scram button is ensured, and the scram function can be triggered in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of lawn mowing safety and relates to an emergency stop device and an intelligent lawn mower. Background Art

[0002] Emergency stop buttons are widely used in lawn mowers, especially smart lawn mowers. In case of emergency, the user can press the emergency stop button immediately to stop the lawn mower. Existing emergency stop buttons are usually push-up buttons installed on the outer shell surface of the lawn mower. Emergency stop buttons are usually rectangular structures. When an emergency stop occurs, the user's pressing point may be at any position on the surface of the emergency stop button. The pressing direction may be vertical downward or at an angle. If the internal pressing structure of the emergency stop button is not set reasonably, these non-standard pressing methods may cause the emergency stop button to be unresponsive and require a second press. There may even be a serious consequence that the emergency stop button is stuck due to being pressed at an angle, resulting in the failure of the emergency stop function. Utility Model Content

[0003] The utility model aims to overcome the problem that non-standard operation may cause the emergency stop button to fail to perform the emergency stop action immediately, and provides an emergency stop device and an intelligent lawn mower.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An emergency stop device comprises: an emergency stop button, a reset mechanism, an emergency stop trigger mechanism, a button balancing mechanism and a button bracket, wherein the button bracket is fixed to a housing of a lawn mower, and the button balancing mechanism is fixed to the button bracket. After a user presses the emergency stop button connected to the reset mechanism, the emergency stop trigger mechanism arranged on the emergency stop button and the button bracket is triggered to perform an emergency stop action on the lawn mower. In the pressing stroke set for the emergency stop button, the pressing point on the emergency stop button is pressed against the button balancing mechanism.

[0006] Furthermore, the button balancing mechanism includes a first balance bar and / or a second balance bar arranged on the button bracket, and a protrusion arranged inside the emergency stop button and facing the button bracket. When the pressing point on the emergency stop button is pressed downward, the protrusion approaches the head of the first balance bar and / or the second balance bar and finally presses against each other.

[0007] Furthermore, the first balance pole and / or the second balance pole is in a U-shaped structure.

[0008] Further, the opening direction of the first balance bar in a U-shaped structure is perpendicular to the opening direction of the second balance bar also in a U-shaped structure, and the rocker arm of the first balance bar is longer than that of the second balance bar. The first balance bar and / or the second balance bar are fixedly installed on the button bracket with the rocker arm as the fulcrum.

[0009] Further, the first balance bar is arranged at the edge of the button bracket. During the process of pressing the emergency stop button, at least one of the protrusions approaches and finally abuts against the head of the first balance bar.

[0010] Further, the first balance bar and the second balance bar are on the same horizontal plane. When pressing the emergency stop button, at least one of the protrusions approaches and abuts against the head of the second balance bar.

[0011] Further, when pressing the emergency stop button, the number of the protrusions approaching and abutting against the first balance bar is 2, and the number of the protrusions approaching and abutting against the second balance bar is 2;

[0012] The end of the protrusion is provided with an inclined surface, and the normal direction of the inclined surface faces the first balance bar or the second balance bar.

[0013] Further, the emergency stop trigger mechanism includes a magnet buckled inside the emergency stop button and a Hall plate arranged in the button bracket. After the Hall plate senses the magnet, it sends an emergency stop signal to the lawn mower.

[0014] Further, the reset mechanism is a compression spring arranged on the button bracket, and the magnet in the emergency stop trigger mechanism is sleeved in the compression spring.

[0015] An intelligent lawn mower has an installation groove opened on its housing, and the above-mentioned emergency stop device is arranged in the installation groove.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. A button balance mechanism adapted to the structure of the emergency stop button is arranged on the button bracket, so that any pressing point on the emergency stop button can abut against the button balance mechanism when pressing the emergency stop button, ensuring the effectiveness of the pressing action of the emergency stop button and enabling the emergency stop function to be triggered in time.

[0018] 2. The first balance bar and the second balance bar, which are arranged in a U-shaped structure on the button bracket, have their opening directions perpendicular to each other. The rocker arm of the first balance bar is longer than that of the second balance bar. The first balance bar and the second balance bar are on the same horizontal plane, and the first balance bar is arranged at the edge of the button bracket. While the U-shaped first balance bar matches the shape of the emergency stop button, it envelopes the second balance bar which is also in a U-shaped structure. Thus, when the user presses the emergency stop button at any point and at any angle, the pressing stroke of the magnet installed on the emergency stop button can be limited within a preset stroke range, ensuring that the emergency stop function can be triggered in time.

[0019] 3. During the process of pressing the emergency stop button, the protrusion arranged inside the emergency stop button and facing the button bracket approaches and finally presses tightly against the head of the balance bar, ensuring the effectiveness of pressing the emergency stop button. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the top button of the lawn mower of the present utility model.

[0021] Figure 2 is Figure 1 an exploded structural diagram of the emergency stop device in

[0022] Figure 3 a schematic structural diagram of the button and the bracket.

[0023] Figure 4 is Figure 3 a structural diagram from another perspective in

[0024] Figure 5 a schematic cross-sectional structural diagram of the emergency stop device.

[0025] Reference numerals in the figures: 1. Machine housing; 11. Installation groove; 2. Button; 21. Protrusion; 22. Inclined surface; 23. Limit hook part; 3. Bracket; 31. First balance bar; 311. First head; 312. First rocker arm; 32. Second balance bar; 321. Second head; 322. Second rocker arm; 33. Stop block; 41. Magnet; 42. Hall plate; 5. Compression spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0030] This embodiment discloses an emergency stop device for a lawn mower, referring to Figure 1 , arranged on the top of the housing 1 of the lawn mower, includes an emergency stop button 2. When the emergency stop button 2 is pressed, the lawn mower is stopped urgently.

[0031] Specifically, refer to Figure 2 , 5 The emergency stop device also includes a button bracket 3, a compression spring 5, a Hall plate 42 (Hall element) and a magnet 41. The top of the casing 1 is recessed downward and provided with a mounting groove 11 for mounting the button bracket 3 and the emergency stop button 2. The button bracket 3 is fixedly connected to the mounting groove 11 by screws. The expansion and contraction direction of the compression spring 5 is vertically arranged, and the upper and lower ends of the compression spring 5 are respectively fixedly connected to the emergency stop button 2 and the button bracket 3. The magnet 41 is fixedly arranged at the bottom of the emergency stop button 2, and the Hall plate 42 is fixedly arranged at the bottom of the button bracket 3.

[0032] The compression spring 5 maintains a certain distance between the magnet 41 and the Hall plate 42 when no external force is applied. Under this distance, the Hall plate 42 will not be triggered by the magnet 41. When the emergency stop button 2 is pressed by an external force, the compression spring 5 is compressed, and the distance between the magnet 41 and the Hall plate 42 is shortened, so that the magnet 41 triggers the Hall plate 42 to realize the emergency stop of the lawn mower.

[0033] The emergency stop device is mainly used to quickly and safely stop the lawn mower in an emergency situation. The emergency situation is usually when there is interference, risk, etc. in the environment, or the lawn mower is out of control, and usually requires manual emergency stop operation. In order to ensure the effectiveness and safety of the emergency stop operation, the size and area of ​​the emergency stop button 2 in this embodiment are designed to be larger to ensure that the emergency stop button 2 can be accurately pressed in an emergency.

[0034] In this embodiment, the emergency stop button 2 is arranged in the installation groove 11. The peripheral wall of the emergency stop button 2 cooperates with the peripheral wall of the installation groove 11. The compression spring 5 is arranged in the middle of the emergency stop button 2, enabling the emergency stop button 2 to move smoothly in the vertical direction, ensuring the effectiveness of the overall structure and operation. However, for the large-area designed emergency stop button 2, during use, especially in an emergency situation, it cannot ensure that the user always presses at the center of the emergency stop button 2 and the pressing force direction is inclined. When the pressing position is applied to the side of the emergency stop button 2 or the pressing force is inclined, it is easy to cause the situation of the emergency stop button 2 jamming.

[0035] Further, referring to Figure 3 、 4 、5, a button balance mechanism is further arranged on the button support 3. The button balance mechanism is generally arranged in a ring or square shape around the peripheral side of the button support 3. Correspondingly, a convex portion 21 is arranged at the bottom of the emergency stop button 2. There are several convex portions 21, and they are also arranged along the circumferential direction of the emergency stop button 2 respectively. The convex portion 21 extends downward, and the end of the convex portion 21 forms a set distance from the button balance mechanism. When the emergency stop button 2 is pressed down by this distance stroke, the convex portion 21 will abut against the button balance mechanism.

[0036] In this embodiment, the button balance mechanism includes a first balance rod 31 and a second balance rod 32. As shown in Figure 2 、 Figure 3 , both the first balance rod 31 and the second balance rod 32 are in a C-shaped bent rod structure. There are buckles on the button support 3 for fixing the first balance rod 31 and the second balance rod 32. The first balance rod 31 includes first heads 311 respectively arranged on both sides in the x-axis direction of the button support 3 (taking the short side of the button support as the x-axis of the xy coordinate system and the long side as the y-axis) in the horizontal direction, and a first rocker arm 312 connecting the two first heads 311. The second balance rod 32 includes second heads 321 respectively arranged on both sides in the y-axis direction of the button support 3 in the horizontal direction, and a second rocker arm 322 connecting the two second heads 322. The first rocker arm 312 is longer than the second rocker arm 322. Correspondingly, four convex portions 21 are respectively arranged at the bottom of the emergency stop button 2, and the four convex portions 21 are respectively located above the two heads of the first balance rod 31 and the two heads of the second balance rod 32. An inclined surface 22 is formed at the end of the convex portion 21, and the normal direction of the inclined surface 22 faces the corresponding first balance rod 31 or second balance rod 32.

[0037] Among them, the first balance rod 31 and the second balance rod 32 are on the same horizontal plane, and the first balance rod 31 is arranged at the edge of the button support 3, so that the C-shaped first balance rod 31 envelopes the second balance rod 32 with the same C-shaped structure while matching the shape of the emergency stop button.

[0038] When the emergency stop button 2 is pressed at any side portion thereof, the protrusion 21 corresponding to the lower portion of the pressed portion moves downward, and contacts the first balance bar 31 or the second balance bar 32 on that side through the inclined surface 22, so as to guide the emergency stop button 2 to be pressed within a preset pressing stroke range, thereby effectively avoiding the key jamming caused by excessive tilting of the emergency stop button 2. Furthermore, after the pressing force applied to that side is blocked by the first balance bar 31 or the second balance bar 32 on that side, further pressing will drive the other side to move. When any protrusion 21 contacts the first balance bar 31 or the second balance bar 32, the downward pressing stroke of the emergency stop button 2 at this time is sufficient for the magnet 41 to trigger the Hall plate 42, thereby realizing the emergency stop of the lawn mower.

[0039] Further, such as Figure 5 As shown, a limiting hook 23 is also provided at the bottom of the emergency stop button 2, and a stop block 33 is provided on the button bracket 3. The limiting hook 23 abuts against the bottom of the stop block 33 to achieve vertical limiting, thereby preventing the emergency stop button 2 from popping out of the installation slot 11 under the rebound action of the compression spring 5.

[0040] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An emergency stop device, characterized in that: Comprising: An emergency stop button (2), a reset mechanism, an emergency stop trigger mechanism, a button balancing mechanism, and a button bracket (3). The button bracket (3) is fixed to the housing of the lawn mower. The button balancing mechanism is fixed to the button bracket (3). After a user presses the emergency stop button (2) connected to the reset mechanism, the emergency stop trigger mechanism provided on the emergency stop button (2) and the button bracket (3) is triggered to perform an emergency stop action on the lawn mower. During the pressing stroke set for the emergency stop button (2), the pressing point on the emergency stop button (2) abuts tightly against the button balancing mechanism. The button balancing mechanism includes a first balance rod (31) and / or a second balance rod (32) provided on the button bracket (3), and a protrusion (21) provided inside the emergency stop button (2) and facing the button bracket (3). When pressing down the pressing point on the emergency stop button (2), the protrusion (21) approaches the head of the first balance rod (31) and / or the second balance rod (32) and finally abuts tightly against each other.

2. An emergency stop device according to claim 1, characterized in that: The first balance rod (31) and / or the second balance rod (32) has a U-shaped structure.

3. An emergency stop device according to claim 1, characterized in that: The opening direction of the U-shaped first balance rod (31) is perpendicular to the opening direction of the U-shaped second balance rod (32). The rocker arm of the first balance rod (31) is longer than the rocker arm of the second balance rod (32). The first balance rod (31) and / or the second balance rod (32) is fixedly installed on the button bracket (3) with the rocker arm as the fulcrum.

4. An emergency stop device according to any one of claims 1 to 3, characterized in that: The first balance rod (31) is provided at the edge of the button bracket (3). During the process of pressing the emergency stop button (2), at least one protrusion (21) approaches and finally abuts tightly against the head of the first balance rod (31).

5. An emergency stop device according to claim 4, characterized in that: The first balance rod (31) and the second balance rod (32) are on the same horizontal plane. When pressing the emergency stop button (2), at least one protrusion (21) approaches and abuts tightly against the head of the second balance rod (32).

6. An emergency stop device according to claim 5, characterized in that: When pressing the emergency stop button (2), the number of protrusions approaching and abutting tightly against the first balance rod (31) is 2, and the number of protrusions (21) approaching and abutting tightly against the second balance rod (32) is 2. The end of the protrusion (21) is provided with an inclined surface (22), and the normal direction of the inclined surface (22) faces the first balance rod (31) or the second balance rod (32).

7. An emergency stop device, characterized in that: Comprising: An emergency stop button (2), a reset mechanism, an emergency stop trigger mechanism, a button balancing mechanism and a button bracket (3), wherein the button bracket (3) is fixed to a housing of a lawn mower, and the button balancing mechanism is fixed to the button bracket (3); after a user presses the emergency stop button (2) connected to the reset mechanism, the emergency stop trigger mechanism arranged on the emergency stop button (2) and the button bracket (3) is triggered to perform an emergency stop action on the lawn mower; during a set pressing stroke for the emergency stop button (2), a pressing point on the emergency stop button (2) is pressed against the button balancing mechanism; The emergency stop trigger mechanism comprises a magnet (41) snapped into the emergency stop button (2) and a Hall plate (42) arranged in the button bracket (3); the Hall plate (42) sends an emergency stop signal to the lawn mower after sensing the magnet (41).

8. An emergency stop device, characterized in that: include: An emergency stop button (2), a reset mechanism, an emergency stop trigger mechanism, a button balancing mechanism and a button bracket (3), wherein the button bracket (3) is fixed to a housing of a lawn mower, and the button balancing mechanism is fixed to the button bracket (3); after a user presses the emergency stop button (2) connected to the reset mechanism, the emergency stop trigger mechanism arranged on the emergency stop button (2) and the button bracket (3) is triggered to perform an emergency stop action on the lawn mower; during a set pressing stroke for the emergency stop button (2), a pressing point on the emergency stop button (2) is pressed against the button balancing mechanism; The reset mechanism is a compression spring (5) arranged on the button bracket (3), and the magnet (41) in the emergency stop trigger mechanism is sleeved in the compression spring (5).

9. An intelligent lawn mower, wherein a mounting slot (11) is provided on the housing thereof, wherein: An emergency stop device as claimed in any one of claims 1 to 8 is arranged in the installation groove (11).

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