Floating cover assembly structure and floating cover lifting detection structure of intelligent lawn mower

Abstract

The present application discloses a floating cover assembly structure of an intelligent lawn mower, wherein the intelligent lawn mower comprises a machine base and a floating cover, and the floating cover assembly structure comprises a floating support assembly and a floating connection mechanism; the floating connection mechanism is arranged between the machine base and the floating cover, and is used to provide a reverse force when the floating cover is away from the machine base; the floating support assembly comprises a support column connected to the machine base or as an integral structure, and a support portion connected to the floating cover or as an integral structure, and the support portion contacts the top of the support column to support the floating cover on the support column. When the floating cover assembly structure of the intelligent lawn mower provided in the present application encounters an uneven road section and the floating cover has an upward jumping tendency or jumps upward, the floating connection mechanism will prevent the floating cover from moving upward, and suppress the floating cover from jumping up and down.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent lawn mowers, and in particular to a floating cover assembly structure and a floating cover lifting detection structure of an intelligent lawn mower. Background Art

[0002] Smart lawn mowers often encounter uneven roads during operation, causing the floating cover to bounce up and down. Frequent jumping will reduce the quality and life of the entire machine. Existing smart lawn mowers generally rely on the gravity of the floating cover to overcome the jumping problem. This method is too passive and cannot really solve the problem of frequent jumping of the floating cover. Moreover, in existing smart lawn mowers, the connection method between the floating cover and the base is generally divided into the front end can be lifted and the front and rear ends can be lifted. When the floating cover jumps, the length of the lifting force arm is almost equal to the length of the entire machine, and the torque is relatively large. Summary of the invention

[0003] In view of the deficiencies existing in the above-mentioned technologies, the present application provides a floating cover assembly structure and a floating cover lifting detection structure of an intelligent lawn mower.

[0004] In order to solve the above technical problems, the technical solution adopted in the present application is: a floating cover assembly structure of an intelligent lawn mower, the intelligent lawn mower comprises a machine base and a floating cover, characterized in that the floating cover assembly structure comprises a floating support assembly and a floating connection mechanism;

[0005] The floating connection mechanism is arranged between the machine base and the floating cover, and is used to provide a reverse force when the floating cover moves away from the machine base;

[0006] The floating support assembly includes a support column connected to or integrally formed with the base and a support portion connected to or integrally formed with the floating cover, wherein the support portion contacts the top of the support column to support the floating cover on the support column;

[0007] The number of the floating support components includes at least 3, and at least 3 of the floating support components are distributed around the floating connection mechanism.

[0008] As a preference:

[0009] The floating connection mechanism is located at the center of gravity of the floating cover.

[0010] As a preference:

[0011] When the support portion and the support column are in contact with each other in a non-deformed state, the contact is point contact.

[0012] As a preference:

[0013] The support portion has a spherical surface for contacting the support column, and the support column has a top plane for contacting the spherical surface of the support portion; or,

[0014] The support column has a spherical surface for contacting the support portion, and the support portion has a top end plane for contacting the spherical surface of the support column.

[0015] As a preference:

[0016] The support column is in flexible contact or rigid contact with the support portion.

[0017] As a preference:

[0018] The floating connection mechanism includes an elastic member, a first connecting member and a second connecting member. The first connecting member is fixedly connected to the floating cover or is an integral structure. The second connecting member is fixedly connected to the base or is an integral structure. The elastic member is arranged between the first connecting member and the second connecting member. The first connecting member and the second connecting member can deform the elastic member to generate a reverse force when the floating cover is away from the base.

[0019] As a preference:

[0020] The elastic member is a spring;

[0021] The first connecting member includes a rod and a seat, the upper end of the rod is fixedly connected to the floating cover, and the lower end of the rod is fixedly connected to the seat or is an integral structure, and the seat is seated on the machine base;

[0022] The second connecting member includes a spring limiting plate located above the seat, and the spring limiting plate is fixedly connected to the machine base;

[0023] The spring is sleeved on the rod and two ends of the spring respectively abut against the seat and the spring limiting plate.

[0024] As a preference:

[0025] The seat portion is spaced apart from the base to form a cavity, and further comprises an opening for drainage which is opened in the base and communicates with the bottom of the cavity; or,

[0026] The machine base is provided with a plurality of support protrusions distributed at intervals to support the seat portion, a cavity is formed between the support protrusions distributed at intervals, and also includes an opening for drainage which is opened in the machine base and connected to the cavity.

[0027] As a preference:

[0028] It also includes a lifting limit assembly for limiting the relative position of the floating cover and the machine base in the vertical direction when the elastic member is fully deformed or before it is fully deformed, and for sharing the pulling force between the floating cover and the machine base borne by the floating connection mechanism.

[0029] As a preference:

[0030] The lifting limit assembly includes a lifting limit plate fixed on the machine base and a stop formed on the floating cover, the lifting limit plate is located above the stop, and the stop can support the lifting limit plate when the elastic member is fully deformed or before it is fully deformed.

[0031] As a preference:

[0032] The rod is made of flexible material;

[0033] The lifting limit assembly also includes a limit column, the upper end of the limit column is fixedly connected to the lifting limit plate or is an integral structure, the lower end of the limit column is fixedly connected to the machine base or is an integral structure, the stop is recessed downward and a second limit ring surrounding the limit column is provided at the bottom;

[0034] The second limiting ring can limit the horizontal movement of the limiting column before the floating cover moves in the horizontal direction and the rod portion is excessively deformed.

[0035] The present application also provides a floating cover lifting detection structure of an intelligent lawn mower, including the floating cover assembly structure, and the floating cover lifting detection structure also includes a magnetic element arranged at the bottom of the first connecting member and a Hall element arranged on the base and capable of detecting the magnetic field of the magnetic element.

[0036] Compared with the prior art, the present application has the following beneficial effects:

[0037] The floating cover assembly structure of the smart lawn mower provided in the present application has a floating connection mechanism that prevents the floating cover from moving upward when the machine encounters an uneven road section and the floating cover has a tendency to jump upward or jumps upward. The floating connection mechanism is arranged at the center of gravity of the floating cover. Compared with the traditional structure, the force arm is reduced by half. Combining these two points ensures that the floating cover is not prone to jumping up and down.

[0038] The floating cover lifting detection structure of the smart lawn mower provided in the present application is a further improvement based on the floating cover assembly structure. When the floating cover is lifted, the magnetic field detected by the Hall element will also change. The controller of the smart lawn mower detects that the floating cover is lifted through the change of the Hall element signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0040] Figure 1 It is a three-dimensional structural schematic diagram of the intelligent lawn mower proposed in this application;

[0041] Figure 2 is a three-dimensional structural schematic diagram of the intelligent lawn mower proposed in the present application from another perspective;

[0042] Figure 3 It is a schematic diagram of the three-dimensional structure of the floating cover of the intelligent lawn mower proposed in this application;

[0043] Figure 4 is a partial exploded schematic diagram of the intelligent lawn mower proposed in the present application;

[0044] Figure 5 is a schematic cross-sectional structure diagram of the intelligent lawn mower proposed in this application;

[0045] Figure 6 It is a schematic diagram of the three-dimensional structure of the base of the intelligent lawn mower proposed in this application;

[0046] Figure 7 yes Figure 6 A is an enlarged schematic diagram;

[0047] Figure 8 is a schematic diagram of the three-dimensional structure of the floating cover of the intelligent lawn mower proposed in the present application from another perspective;

[0048] Fig. 9 yes Figure 8 A magnified schematic diagram of B.

[0049] In the figure:

[0050] 1. Machine base; 2. Floating cover; 101. Opening; 102. Support protrusion; 301. Support column; 302. Support part; 401. Elastic member; 402. First connecting member; 403. Spring limit plate; 4021. Rod; 4022. Seat; 501. Lift limit plate; 502. Stop; 503. Limit column; 504. Second limit ring. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0052] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0053] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0054] The present application provides a floating cover assembly structure of an intelligent lawn mower, such as Figure 1 and Figure 2 As shown, the intelligent lawn mower comprises a base 1 and a floating cover 2 , wherein the floating cover 2 is disposed on the base 1 .

[0055] like Figure 3-9As shown, the floating cover assembly structure includes a floating connection mechanism. The floating connection mechanism is arranged between the machine base 1 and the floating cover 2 and is located at the center of gravity of the floating cover 2. The floating connection mechanism includes an elastic member 401, a first connection member 402 and a second connection member, and the elastic member 401 is a spring. The first connection member 402 includes a rod 4021 and a seat 4022. The floating cover 2 protrudes downward and has a first limiting portion that wraps the upper end of the rod 4021. The upper end of the rod 4021 is fixedly connected to the floating cover 2 by a screw; the lower end of the rod 4021 is connected to the seat 4022. The base 1 protrudes upwards to have a second limiting portion with a limiting groove, the spring and the seat 4022 are placed in the limiting groove, the seat 4022 is limited by the second limiting portion in the horizontal direction, so that the seat 4022 can be guided to a certain extent when it moves up and down; the second connecting member includes a spring limiting plate 403 located above the seat 4022, the spring limiting plate 403 is fixed to the upper edge of the second limiting portion by screws, the spring is sleeved on the rod 4021 and the two ends respectively abut the seat 4022 and the spring limiting plate 403. The spring limiting plate 403 protrudes downwards to have a first limiting ring inserted into the inner ring of the spring and surrounding the rod 4021, the first limiting ring limits the spring in the horizontal direction, and tries to ensure that the spring will not deviate in the horizontal direction during the deformation process.

[0056] When the floating cover 2 is lifted upward relative to the machine base 1 due to inertia or force, the floating cover 2 drives the seat 4022 to move upward or has a tendency to move upward. Since the two ends of the spring respectively press against the seat 4022 and the spring limit plate 403, the spring is compressed to generate elastic force, which prevents the floating cover 2 from moving upward. The floating connection mechanism is arranged at the center of gravity of the floating cover 2, and the lever arm is reduced by half. These two points ensure that the floating cover 2 is not easy to jump up and down during the use of the lawn mower.

[0057] The floating cover assembly structure also includes a floating support assembly. In this example, four floating support assemblies are distributed around the floating connection mechanism. The floating support assembly includes a support column 301 and a support portion 302. The support portion 302 contacts the top of the support column to support the floating cover 2 on the support column 301. The support portion 302 is formed on the floating cover 2 in a concave shape. The support portion 302 has a spherical surface in contact with the support column 301, and the top surface of the support column 301 in contact with the spherical surface of the support portion 302 is a plane. The spherical surface of the support portion 302 and the top surface of the support column 301 are in point contact when they are not deformed by mutual extrusion. In some other embodiments, the structural form of the point contact can be changed, for example, the top surface of the support column 301 is set to a spherical surface, and the surface of the support portion 302 in contact with the support column 301 is set to a plane.

[0058] In this example, the support column 301 is a rubber column fixed on the base 1 , so that a flexible contact is formed between the support column 301 and the support portion 302 , which can reduce noise when the floating cover 2 bounces.

[0059] The bottom of the limiting groove has a plurality of support protrusions 102 distributed at intervals, and the seat 4022 is seated on the support protrusions 102. The gaps between the support protrusions 102 form a cavity, and some water can be contained in the cavity. The second limiting portion is provided with an opening 101 connected to the cavity, and water can be discharged from the floating connection mechanism through the opening 101.

[0060] When the floating cover 2 is lifted to a certain extent, the spring is fully compressed, and the floating connection mechanism will bear the weight of the entire machine base 1, which will cause damage to the floating connection mechanism. In order to avoid this situation, the floating cover assembly structure also includes a lifting limit assembly, which includes a lifting limit plate 501 fixed on the machine base 1 and a stopper 502 formed on the floating cover 2. The lifting limit plate 501 is located above the stopper 502, and the stopper 502 can support the lifting limit plate 501 when the spring is fully deformed or before it is fully deformed. In this way, when the floating cover 2 is lifted to a certain extent, when the spring is fully deformed or before it is fully deformed, the relative position of the floating cover 2 and the machine base 1 in the vertical direction is limited by the lifting limit assembly, and the weight of the machine base 1 is borne by the floating connection mechanism and the lifting limit assembly.

[0061] During the use of the lawn mower, the floating cover 2 will not only encounter the problem of lifting, but also may be displaced in the horizontal direction due to collision. Therefore, the rod 4021 is made of a flexible material such as rubber; the lifting limit assembly also includes a limit column 503, the upper end of the limit column 503 is fixedly connected to the lifting limit plate 501, the lower end of the limit column 503 is an integral structure with the base 1, the stop 502 is recessed downward and a second limit ring 504 surrounding the limit column 503 is provided at the bottom. When the floating cover 2 is displaced in the horizontal direction, the rod 4021 made of flexible material is deformed. After the collision, the floating cover 2 is reset by using the force generated by the deformation of the rod 4021. The second limit ring 504 can limit the horizontal movement of the limit column 503 before the rod 4021 is excessively deformed, so as to prevent the rod 4021 from being damaged due to excessive deformation.

[0062] The present application also provides a floating cover lifting detection structure of an intelligent lawn mower, including a floating cover assembly structure, a magnetic element arranged at the bottom of a first connecting member 402, and a Hall element arranged on a machine base 1 and capable of detecting the magnetic field of the magnetic element. When the floating cover 2 is lifted, the position of the magnetic element changes with the displacement of the first connecting member 402, and the magnetic field detected by the Hall element also changes. The controller of the lawn mower detects that the floating cover 2 is lifted through the change of the Hall element signal.

[0063] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A floating cover assembly structure for an intelligent lawn mower, the intelligent lawn mower comprising a base (1) and a floating cover (2), characterized in that: The floating cover assembly structure includes a floating support assembly and a floating connection mechanism; The floating connection mechanism is arranged between the machine base (1) and the floating cover (2) and is used to provide a reverse force when the floating cover (2) moves away from the machine base (1); The floating support assembly comprises a support column (301) connected to or integrally formed with the machine base (1) and a support portion (302) connected to or integrally formed with the floating cover (2), wherein the support portion (302) contacts the top of the support column (301) to support the floating cover (2) on the support column (301); The number of the floating support components includes at least 3, and at least 3 of the floating support components are distributed around the floating connection mechanism; the floating connection mechanism is located at the center of gravity of the floating cover (2); the floating connection mechanism includes an elastic member (401), a first connection member (402) and a second connection member, the first connection member (402) is fixedly connected to the floating cover (2) or is an integral structure, the second connection member is fixedly connected to the base (1) or is an integral structure, the elastic member (401) is arranged between the first connection member (402) and the second connection member, the first connection member (402) and the second connection member can cause the elastic member (401) to deform and generate a reverse force when the floating cover (2) is away from the base (1); the elastic member (401) is a spring.

2. The floating cover assembly structure of the intelligent lawn mower according to claim 1, characterized in that: When the support portion (302) and the support column (301) are in contact in a non-deformed state, the contact is point contact.

3. The floating cover assembly structure of the intelligent lawn mower according to claim 1, characterized in that: The support portion (302) has a spherical surface for contacting the support column (301), and the support column (301) has a top plane for contacting the spherical surface of the support portion (302); or, The support column (301) has a spherical surface for contacting the support portion (302), and the support portion (302) has a top plane for contacting the spherical surface of the support column (301).

4. The floating cover assembly structure of the intelligent lawn mower according to claim 1, characterized in that: The support column (301) is in flexible contact or rigid contact with the support portion (302).

5. The floating cover assembly structure of the intelligent lawn mower according to claim 1, characterized in that: The first connecting member (402) comprises a rod portion (4021) and a seat portion (4022), the upper end of the rod portion (4021) being fixedly connected to the floating cover (2), and the lower end of the rod portion (4021) being fixedly connected to the seat portion (4022) or being an integral structure, and the seat portion (4022) being seated on the machine base (1); The second connecting member comprises a spring limiting plate (403) located above the seat portion (4022), and the spring limiting plate (403) is fixedly connected to the machine base (1); The spring sleeve is placed on the rod (4021) and its two ends respectively abut against the seat (4022) and the spring limiting plate (403); the spring limiting plate (403) protrudes downward and has a first limiting ring inserted into the inner ring of the spring and surrounding the rod (4021).

6. The floating cover assembly structure of the intelligent lawn mower according to claim 5, characterized in that: The seat portion (4022) and the machine base (1) are spaced apart to form a cavity, and further comprises an opening (101) for drainage, which is opened in the machine base (1) and communicates with the bottom of the cavity; or, The machine base (1) is provided with a plurality of support protrusions (102) distributed at intervals for supporting the seat portion (4022), a cavity is formed between the support protrusions (102) distributed at intervals, and also includes an opening (101) for drainage that is opened in the machine base (1) and communicates with the cavity.

7. The floating cover assembly structure of the intelligent lawn mower according to claim 1, characterized in that: It also includes a lifting limit assembly, which is used to limit the relative position of the floating cover (2) and the machine base (1) in the vertical direction when the elastic member (401) is completely deformed or before it is completely deformed, and to distribute the pulling force between the floating cover (2) and the machine base (1) borne by the floating connection mechanism.

8. The floating cover lifting detection structure of the intelligent lawn mower is characterized by: It comprises a floating cover assembly structure as claimed in any one of claims 1 to 7, wherein the floating cover lifting detection structure further comprises a magnetic element arranged at the bottom of the first connecting member (402) and a Hall element arranged on the base (1) and capable of detecting the magnetic field of the magnetic element.

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