Lifting detection structure, steering assembly and mowing robot

Abstract

The utility model provides a lifting detection structure, a steering assembly and a mowing robot. The lifting detection structure comprises a front wheel support, a front wheel shaft, a fixing piece and a detection piece. A cavity is formed in the front wheel bracket; the front wheel shaft is movably arranged in the cavity and can float up and down; the fixing piece comprises a mounting part and two fixing parts, the front wheel shaft is coaxially sleeved with the mounting part, and the two fixing parts are clamped to the front wheel shaft in the vertical direction at intervals and used for clamping the mounting part between the two fixing parts; the detection part comprises a trigger part and an induction part, the trigger part is fixed to the installation part, and the induction part is located on one side of the front wheel support and used for being in induction fit with the trigger part so as to detect the relative position of the front wheel shaft and the front wheel support. The utility model solves the technical problems that the traditional equipment is inconvenient to install and maintain, and the stability and the safety of the equipment are reduced due to serious abrasion.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mowing robot technical field especially, lift detection structure, steering assembly and mowing robot. BACKGROUND

[0002] With the development of garden machinery technology, the mowing robot has become an indispensable equipment in family and professional garden maintenance. However, there is a certain safety hazard in the use of the mowing robot, especially when the machine is lifted or lifted, if the cutter is not closed in time, it may cause serious accidental injury. Therefore, to ensure that the mowing robot can automatically close the cutter when it is lifted or lifted is an important measure to improve its safety performance.

[0003] In the prior art, the front wheel system usually adopts a way of interference press-fitting a ring-shaped limiting ring on the front wheel shaft to fix the corresponding parts on the front wheel shaft, so that the two are relatively static. Although this method can realize the basic fixing function, it has the following problems in actual application:

[0004] 1. High installation complexity: interference press-fitting requires accurate size matching and high assembly precision, which not only increases the manufacturing cost, but also may cause errors in the assembly process, affecting the final product quality;

[0005] 2. Inconvenient to maintain: once it needs to be maintained or replaced, special tools must be used to disassemble the interference fit part, which not only consumes time and effort, but also may cause damage to other parts;

[0006] 3. Serious wear: after a long time of running, frequent vibration or bearing a large load will cause wear at the interference fit part, which will reduce the fixing effect and further affect the stability and safety of the machine. SUMMARY

[0007] In view of the deficiencies in the prior art, the utility model provides a lifting detection structure, steering assembly and mowing robot to solve the technical problems of inconvenient installation and maintenance of traditional equipment in related technology, and reduced stability and safety of the equipment due to serious wear.

[0008] The utility model provides a kind of lifting detection structure, comprising:

[0009] Front wheel support is formed with cavity;

[0010] Front wheel shaft is movably arranged in the cavity and can float along up and down;

[0011] Fixing piece includes mounting portion and two fixed parts, the mounting portion is coaxially sleeved on the front wheel shaft, and the two fixed parts are spaced apart and clamped on the front wheel shaft along up and down, for clamping the mounting portion therebetween;

[0012] The detection member comprises a trigger part and a sensing part, the trigger part is fixed to the mounting part, and the sensing part is located on one side of the front wheel support and is used for sensing cooperation with the trigger part to detect the relative position of the front wheel shaft and the front wheel support.

[0013] Further, at least one of the upper and lower ends of the mounting part is provided with a positioning groove for avoiding the corresponding fixed part.

[0014] Further, the front wheel shaft is provided with two annular grooves in a spaced manner along the up-down direction, and the two fixed parts are correspondingly clamped in the two annular grooves.

[0015] Further, the fixed part comprises an open retainer ring.

[0016] Further, the opening width of the open retainer ring is gradually reduced from outside to inside.

[0017] Further, the mounting part is outwardly protruding to form an integral extension part, and the extension part has an opening for accommodating the trigger part.

[0018] Further, the trigger part comprises a magnet, and the sensing part comprises a Hall sensing device.

[0019] The utility model also provides a steering assembly comprising the lifting detection structure.

[0020] Further, the steering assembly further comprises a front wheel, the front wheel is rotatably arranged on the front wheel shaft and can be linked to float along the up-down direction of the front wheel shaft.

[0021] The utility model also provides a mowing robot comprising a chassis and the steering assembly, and the front wheel support is mounted on the chassis.

[0022] Compared with the prior art, the utility model has the following beneficial effects: under the action of external force, the front wheel shaft can float along the up-down direction in the cavity of the front wheel support, so that the trigger part can follow, and then the lifting action of the front wheel shaft can be detected through the cooperation of the trigger part and the sensing part, so as to close the cutter in time according to the signal feedback, improve the safety, further, the two fixed parts are arranged along the up-down direction, and the mounting part therebetween can be compressed, so that the fixed part can be quickly and accurately installed on the front wheel shaft, so as to ensure the relative fixation of the trigger part and the front wheel shaft, at the same time, the direct contact between the front wheel shaft and the trigger part is reduced, and the service life of the components is prolonged; the installation is convenient and fast, the universality is strong, and the maintenance is easy. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the lifting detection structure in an embodiment of the utility model;

[0024] Figure 2 It is the sectional view of the lifting detection structure in an embodiment of the utility model;

[0025] Figure 3 It is the partial explosion drawing of the lifting detection structure in an embodiment of the utility model;

[0026] Figure 4 It is the structural schematic diagram of the fixed part in an embodiment of the utility model;

[0027] Figure 5 It is the partial structural schematic diagram of the grass cutting robot in an embodiment of the utility model.

[0028] Explanation of the attached drawing:

[0029] 1, front wheel support;2, front wheel axle;201, annular groove;3, mounting part;301, positioning recess;302, extension part;4, fixed part;5, trigger part;6, sensing part;7, front wheel;8, chassis.

[0030] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the embodiment. Specific implementation

[0031] In order to make the utility model's purpose, technical scheme and beneficial effect more clear and distinct, the technical scheme in the utility model is further explained below with reference to the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0032] In the utility model embodiment, as shown in Figures 1-3 The lifting detection structure includes: front wheel support 1, front wheel axle 2, fixing piece and detection piece;Front wheel support 1 is formed with cavity;Front wheel axle 2 is movably arranged in the cavity and can float along up and down;The fixing piece includes mounting part 3 and two fixed parts 4, the mounting part 3 coaxially sleeved on the front wheel axle 2, two fixed parts 4 are spaced apart and clamped on the front wheel axle 2 along up and down, for clamping the mounting part 3 between them;Detection piece includes trigger part 5 and sensing part 6, the trigger part 5 is fixed to the mounting part 3, the sensing part 6 is located on one side of the front wheel support 1, for sensing cooperation with the trigger part 5, to detect the relative position of the front wheel axle 2 and the front wheel support 1.

[0033] Specifically, in this embodiment of the invention, the front wheel bracket 1 has a cavity formed along its vertical direction for the front wheel axle 2 to pass through, allowing the front wheel axle 2 to float vertically within the cavity. Additionally, a trigger part 5 is provided on the front wheel axle 2, and a sensing part 6 is provided on one side of the front wheel bracket 1. The trigger part 5 and the sensing part 6 work together to detect the relative distance between the front wheel axle 2 and the front wheel bracket 1. This allows for control of the tool's start and stop based on the floating distance of the front wheel axle 2, thereby improving the safety of the structure.

[0034] Specifically, in order to fix the trigger part 5 to the front wheel axle 2 so that the trigger part 5 can float vertically with the front wheel axle 2, the two are defined to be relatively stationary, and the above purpose is achieved by the sensing cooperation between the trigger part 5 and the sensing part 6. In this embodiment, a mounting part 3 is sleeved on the circumferential surface of the front wheel axle 2. The mounting part 3 is used to fix the trigger part 5 and prevent the trigger part 5 from directly contacting the front wheel axle 2 and causing it to wear. Furthermore, two fixing parts 4 are respectively provided on the upper and lower end faces of the mounting part 3. The fixing parts 4 can be fixedly clamped to the front wheel axle 2, so that the mounting part 3 can be clamped between them and fixed to the front wheel axle 2.

[0035] In this embodiment, the mounting part 3 is clamped between two fixing parts 4 to replace the original interference fit mounting method, preventing the trigger part 5 from directly contacting the front wheel axle 2 and extending the service life of the components; at the same time, each component is independent of each other, which facilitates installation and maintenance.

[0036] like Figure 3 As shown, in one embodiment, at least one of the upper and lower ends of the mounting portion 3 is provided with a positioning groove 301 to avoid the corresponding fixing portion 4. Specifically, in order to improve the connection tightness between the mounting portion 3 and the fixing portion 4, this embodiment provides a positioning groove 301 at the end of the mounting portion 3, so that the fixing portion 4 can be accommodated in the positioning groove 301, thereby achieving surface-to-surface contact between the two and ensuring the stability and compactness of the structure. In addition, the positioning groove 301 has a sidewall that can abut against the sidewall of the fixing portion 4 to restrict the radial movement of the fixing portion 4 along the front wheel axle 2. Of course, as Figure 3 As shown, since two fixing parts 4 are provided in this embodiment, and are located on the upper and lower end faces of the mounting part 3 respectively, positioning grooves 301 can be provided on both the upper and lower end faces of the mounting part 3 for contacting the corresponding fixing parts 4.

[0037] like Figure 3As shown in the drawings, in an embodiment, the front axle 2 is provided with two annular grooves 201 in the up-down direction, and the two fixing parts 4 are correspondingly clamped in the two annular grooves 201. Specifically, in order to further install and fix the fixing part 4 on the front axle 2, the embodiment is provided with two annular grooves 201 at the corresponding positions of the front axle 2, which are used to position the two fixing parts 4 to limit the axial movement of the fixing part 4 along the front axle 2.

[0038] As shown in the drawings, Figure 3 , Figure 4 The fixing part 4 includes an open retainer ring. The open retainer ring can be quickly clamped into a predetermined position on the front axle 2 without the need for complex tools and steps, greatly simplifying the installation process; when disassembly is required, it can be easily removed with a simple tool such as a screwdriver or pliers, which is convenient and fast. On the other hand, the open retainer ring can be firmly clamped on the front axle 2 through its elastic deformation, ensuring the close fit between the fixing part 4 and the front axle 2, preventing loosening. Of course, the open retainer ring has good anti-vibration performance, and even if the front axle 2 vibrates during operation, it will not easily fall off; and the open retainer ring can be selected according to the diameter of the front axle 2, suitable for front axles 2 of different diameters, with good versatility and adaptability and flexibility. Preferably, the opening width of the open retainer ring is gradually reduced from outside to inside; so that it can be quickly clamped into the front axle 2.

[0039] As shown in the drawings, Figure 2 , Figure 3 In an embodiment, the mounting part 3 protrudes outward to form an integral extension 302, and the extension 302 has an opening for accommodating the trigger part 5. Specifically, in order to protect the trigger part 5 and install it on the mounting part 3, the embodiment is integrally formed with an extension 302 on the mounting part 3, and one end of the extension 302 has an opening for accommodating the trigger part 5, so that it is stationary relative to the front axle 2.

[0040] In an embodiment, the trigger part 5 includes a magnet, and the sensing part 6 includes a Hall sensing device. The Hall sensing device is very sensitive to changes in the magnetic field, and when the magnet moves up and down with the front axle 2, the Hall sensing device can quickly detect changes in the magnetic field, thereby triggering a signal immediately, ensuring the accuracy of the detection result and avoiding misjudgment. At the same time, there is no physical contact between the magnet and the Hall sensing device, avoiding performance degradation due to mechanical wear. Of course, the Hall sensing device in the embodiment is installed at the lower position of the plate body, or rotated by 180° during installation.

[0041] The embodiment also provides a turning assembly, comprising the front wheel 7 and the lifting detection structure, the front wheel 7 is rotatably arranged on the front wheel shaft 2 and can drive the front wheel shaft 2 to float up and down. Specifically, on one hand, the driving force of the front wheel 7 comes from the walking pushing of the rear wheel, and a power device does not need to be installed at the front wheel 7, so that the overall structure is lighter and the energy consumption is lower; on the other hand, when the equipment is lifted, the weight of the front wheel 7 limits the front wheel shaft 2 to drive the trigger part 5 to move downward to gradually approach the inductive part 6, so as to trigger the corresponding signal according to the floating. The specific structure of the lifting detection structure is referred to the above embodiment, and since the turning assembly adopts all the technical solutions of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiment are achieved, and here, the beneficial effects are not repeated.

[0042] The embodiment also provides a mowing robot, comprising the chassis 8 and the turning assembly, and the specific structure of the turning assembly is referred to the above embodiment, and since the mowing robot adopts all the technical solutions of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiment are achieved, and here, the beneficial effects are not repeated.

[0043] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all should be covered in the scope of the claims of the utility model.

Claims

1. A lift detection structure, characterized by, The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support.

2. The lift detection structure of claim 1, wherein The application relates to a lifting detection structure of a front wheel support.

3. The lift detection structure of claim 1, wherein The application relates to a lifting detection structure of a front wheel support.

4. The lift detection structure of claim 3, wherein The application relates to a lifting detection structure of a front wheel support.

5. The lift detection structure of claim 4, wherein, The application relates to a lifting detection structure of a front wheel support.

6. Lift detection structure according to any of claims 1-5, characterized in that The application relates to a lifting detection structure of a front wheel support.

7. Lift detection structure according to any of claims 1-5, characterized in that The application relates to a lifting detection structure of a front wheel support.

8. A steering assembly characterised in that, The application relates to a lifting detection structure of a front wheel support.

9. The steering assembly of claim 8, wherein, The application relates to a lifting detection structure of a front wheel support.

10. A mowing robot, characterized in that The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to a lifting detection structure of a front wheel support. The application relates to

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