An opening and closing mechanism and a smart lawnmower

Abstract

This utility model discloses an opening and closing mechanism and an intelligent lawnmower. The opening and closing mechanism is used to connect the upper and lower shells of the device to protect the FPC flexible cable connected between the two shells during the opening and closing process. It includes: a rotating connecting part disposed on the upper shell; a sliding groove disposed on the lower shell; and a rotating shaft, one end of which is slidably accommodated in the sliding groove, and the other end of which is rotatably connected to the rotating connecting part. When the upper and lower shells are opened and closed, the rotating shaft can slide along the length direction of the sliding groove, and when it slides to a preset position in the sliding groove, it can achieve a limited opening of the upper shell. This utility model effectively constrains the movement trajectory of the upper shell relative to the lower shell, avoiding excessive pulling, bending, or compression of the FPC flexible cable connected between the upper and lower shells due to the opening and closing action, thereby reducing the risk of damage to the FPC connector and the cable itself due to stress.

Description

Technical Field

[0001] This utility model relates to the field of lawn mowing equipment technology, and further to an opening and closing mechanism and an intelligent lawn mower. Background Technology

[0002] In electronic devices such as smart lawnmowers, the camera module is typically mounted on the outer shell, while the PCBA (Printed Circuit Board Assembly) connected to it is mounted on the lower shell. During the opening and closing of the upper and lower shells (such as during maintenance or production assembly), the FPC (Flexible Printed Circuit) cable connecting the camera module and the PCBA is easily pulled. FPC connectors are mostly surface-mounted to the PCBA; if the connector is damaged due to pulling, the entire PCBA often becomes unusable, increasing repair costs and production difficulty.

[0003] In the existing technology, there is a lack of effective mechanisms to constrain the relative motion trajectory of the upper and lower shells when they open and close, which makes the FPC flexible flat cable susceptible to being stretched during the opening and closing process, resulting in problems such as low reliability and easy damage.

[0004] Therefore, there is an urgent need to design an opening and closing mechanism that can effectively protect the FPC flexible flat cable during the opening and closing of the upper and lower shells. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide an opening and closing mechanism and an intelligent lawnmower that effectively constrains the movement trajectory of the upper shell relative to the lower shell, avoiding excessive pulling, bending, or squeezing of the FPC flexible cable connected between the upper and lower shells due to the opening and closing action, thereby reducing the risk of damage to the FPC connector and the cable itself due to stress.

[0006] To achieve the above objectives, this utility model provides an opening and closing mechanism for connecting the upper and lower shells of a device, so as to protect the FPC flexible flat cable connected between the two during the opening and closing process of the upper and lower shells, comprising:

[0007] The rotating connection portion is provided on the upper shell;

[0008] A sliding groove is provided in the lower shell;

[0009] And a rotating shaft, one end of which is slidably accommodated in the groove, and the other end is rotatably connected to the rotating connection part;

[0010] When the upper shell and the lower shell are opened and closed, the rotating shaft can slide along the length of the slide groove, and when it slides to a preset position in the slide groove, the upper shell can be limited and opened.

[0011] In some embodiments, the groove includes a first position and a second position distributed sequentially along its length;

[0012] When the rotating shaft slides to the first position, the upper shell and the lower shell are in a snap-fit ​​state;

[0013] When the rotating shaft slides to the second position, the slide groove limits the rotating shaft, so that the upper shell and the lower shell are in an open state.

[0014] In some embodiments, when the pivot member slides to the first position, the upper shell is parallel to the lower shell;

[0015] When the rotating shaft slides to the second position, the included angle between the upper shell and the lower shell is not less than 90°.

[0016] In some embodiments, the second position of the slide is provided with a limiting structure to limit the upper shell in the open state.

[0017] In some embodiments, the limiting structure is a flared arc-shaped corner or arc-shaped limiting boss formed at the end of the groove, and a stop structure that limits the upper shell.

[0018] In some implementations, it also includes:

[0019] Two parallel, spaced-apart first fixing plates are fixed to the upper shell, and each first fixing plate is provided with the rotating connection part;

[0020] Two parallel, spaced-apart second fixing plates are fixed to the lower shell. Each second fixing plate is provided with a sliding groove, and the two sliding grooves are parallel to each other and coaxially aligned.

[0021] In some embodiments, the rotating connection is a circular hole or an arc-shaped groove.

[0022] In some embodiments, the rotating shaft includes a sliding section, two connecting sections, and two rotating sections;

[0023] The two ends of the sliding segment are respectively connected to the corresponding rotating segment through the connecting segment;

[0024] The sliding section is slidably housed within the two sliding grooves, and the rotating section is rotatably engaged with the rotating connection.

[0025] In some embodiments, the sliding segment is arranged perpendicularly to the connecting segment;

[0026] The sliding section is arranged parallel to the rotating section;

[0027] The sliding section, the two connecting sections, and the two rotating sections are integrally bent into shape.

[0028] According to another aspect of the present invention, the present invention further provides an intelligent lawnmower, including the opening and closing mechanism as described in any one of the above, and further including:

[0029] The upper casing houses the camera module;

[0030] The lower casing contains a PCBA.

[0031] The FPC flexible flat cable connects one end to the camera module and the other end to the PCBA.

[0032] The opening and closing mechanism is connected between the upper shell and the lower shell and is used to constrain the movement trajectory of the upper shell during the opening and closing process to protect the FPC flexible cable from excessive pulling.

[0033] Compared with the prior art, the opening and closing mechanism and intelligent lawnmower provided by this utility model have the following beneficial effects:

[0034] In this invention, a rotating connecting part is provided on the upper shell, a sliding groove is provided on the lower shell, and a rotating shaft is used, with one end slidingly accommodated in the sliding groove and the other end rotatably connected to the rotating connecting part. This achieves controlled movement of the upper and lower shells during the opening and closing process. When the upper and lower shells are opened and closed, the rotating shaft can slide along the length of the sliding groove, and when it slides to the preset position of the sliding groove, the upper shell is limited to open. This opening and closing mechanism effectively constrains the movement trajectory of the upper shell relative to the lower shell, avoiding excessive pulling, bending, or squeezing of the FPC flexible cable connected between the upper and lower shells due to the opening and closing action. This reduces the risk of damage to the FPC connector and cable itself due to force, improves the reliability and service life of the equipment, and simplifies the opening and closing operation process, making production assembly and daily maintenance easier. Attached Figure Description

[0035] The optional embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0036] Figure 1 This is a schematic diagram of the overall structure of the device housing in an optional embodiment of this utility model;

[0037] Figure 2 This is a partial structural schematic diagram of the device housing in an optional embodiment of this utility model;

[0038] Figure 3 This is a partial structural schematic diagram of the device housing from another perspective of an optional embodiment of this utility model;

[0039] Figure 4 This is a partial structural schematic diagram of the upper shell in an optional embodiment of the present invention;

[0040] Figure 5 This is a partial structural diagram of the lower shell of an optional embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of the rotating shaft component in an optional embodiment of this utility model.

[0042] Explanation of icon numbers:

[0043] Upper shell 1, rotating connecting part 11, first fixing plate 12, camera module 13, lower part 2, sliding groove 21, first position 211, second position 212, limiting structure 22, second fixing plate 23, PCBA 24, stop structure 25, rotating shaft 3, sliding section 31, connecting section 32, rotating section 33, FPC flexible flat cable 4. Detailed Implementation

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0045] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0046] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0047] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] In one embodiment, refer to the appendix to the specification. Figures 1 to 6 The present invention provides an opening and closing mechanism for connecting the upper shell 1 and the lower shell 2 of a device, so as to protect the FPC flexible flat cable 4 connected between the two during the opening and closing of the upper shell 1 and the lower shell 2. The mechanism includes: a rotating connecting part disposed on the upper shell 1; a sliding groove 21 disposed on the lower shell 2; and a rotating shaft 3, one end of which is slidably accommodated in the sliding groove 21, and the other end is rotatably connected to the rotating connecting part 11. When the upper shell 1 and the lower shell 2 are opened and closed, the rotating shaft 3 can slide along the length direction of the sliding groove 21, and when it slides to a preset position of the sliding groove 21, it can realize the limited opening of the upper shell 1.

[0050] In this embodiment, by providing a rotating connection part 11 on the upper shell 1 and a sliding groove 21 on the lower shell 2, and using a rotating shaft 3 with one end slidably accommodated in the sliding groove 21 and the other end rotatably connected to the rotating connection part 11, controlled movement of the upper shell 1 and the lower shell 2 during the opening and closing process is realized. When opening and closing the upper shell 1 and the lower shell 2, the rotating shaft 3 can slide along the length direction of the sliding groove 21, and when it slides to the preset position of the sliding groove 21, the upper shell 1 is limited to open. This opening and closing mechanism effectively constrains the movement trajectory of the upper shell 1 relative to the lower shell 2, avoiding excessive pulling, bending or squeezing of the FPC flexible cable 4 connected between the upper shell 1 and the lower shell 2 due to the opening and closing action, thereby reducing the risk of damage to the FPC connector and the cable itself due to force, improving the reliability and service life of the equipment, and simplifying the opening and closing operation process, which is convenient for production assembly and daily maintenance.

[0051] In one embodiment, refer to the appendix to the specification. Figures 1 to 3 The slide groove 21 includes a first position 211 and a second position 212 distributed sequentially along its length. When the rotating shaft 3 slides to the first position 211, the upper shell 1 and the lower shell 2 are in a snap-fit ​​state. When the rotating shaft 3 slides to the second position 212, the slide groove 21 limits the rotating shaft 3, so that the upper shell 1 and the lower shell 2 are in an open state.

[0052] Specifically, when the rotating shaft 3 slides to the first position 211, the upper shell 1 is parallel to the lower shell 2; when the rotating shaft 3 slides to the second position 212, the included angle between the upper shell 1 and the lower shell 2 is not less than 90°. When the rotating shaft 3 slides to the first position 211, the upper shell 1 and the lower shell 2 remain parallel, achieving a tight fit between the equipment and ensuring the structural integrity and protection of the product in its non-working state; when the rotating shaft 3 slides to the second position 212, the upper shell 1 and the lower shell 2 form a perpendicular state. This opening angle provides a stable and large-scale open space for the upper shell 1; it can also effectively prevent the FPC flexible cable 4 from being excessively stretched, twisted, or worn due to insufficient space or improper bending angle, greatly improving the convenience of operation and the safety and reliability of the components.

[0053] Furthermore, a limiting structure 22 is provided at the second position 212 of the slide groove 21 to limit the upper shell 1 in the open state. The limiting structure 22 is a flared arc-shaped corner or arc-shaped limiting boss formed at the end of the slide groove 21, and a stop structure 25 for limiting the upper shell 1.

[0054] In this embodiment, when the upper shell 1 is opened, the rotating shaft 3 slides along the slide groove 21 from the first position 211 to the second position 212. During this process, the slide groove 21 restricts the rotating shaft 3 to move only in the height direction. When the rotating shaft 3 slides to the flared arc angle at the second position 212, it breaks free from the longitudinal constraint of the slide groove 21 and obtains a composite motion degree of freedom in the rotation and vertical directions. As the upper shell 1 continues to move until it is blocked by the stop structure 25 and mechanically stopped, the upper shell 1 remains stable and suspended under the effect of its center of gravity being offset backward. The movement path of the upper shell 1 is constrained and the trajectory is predictable, thereby effectively avoiding excessive pulling on the FPC flexible flat cable 4 during the opening and closing process and achieving reliable protection for the FPC flexible flat cable 4.

[0055] In one embodiment, refer to the appendix to the specification. Figure 4 , Figure 5 The opening and closing mechanism further includes: two parallel and spaced first fixed plates 12 fixed to the upper shell 1, each first fixed plate 12 having a rotating connecting part 11; and two parallel and spaced second fixed plates 23 fixed to the lower shell 2, each second fixed plate 23 having a sliding groove 21, the two sliding grooves 21 being parallel to each other and coaxially aligned, the rotating connecting part 11 being a round hole or an arc-shaped groove. The two parallel and spaced first fixed plates 12 and the two parallel and spaced second fixed plates 23 together form a stable support frame, and the parallel and coaxially aligned sliding grooves 21 provided on them provide a precise sliding trajectory for the rotating shaft 3, effectively preventing the rotating shaft 3 from jamming or tilting due to single-point force during movement.

[0056] Reference manual attached Figure 6 The rotating shaft 3 includes a sliding section 31, two connecting sections 32 and two rotating sections 33; the two ends of the sliding section 31 are respectively connected to the corresponding rotating sections 33 through the connecting sections 32; the sliding section 31 is slidably accommodated in the two sliding grooves 21, and the rotating section 33 is rotatably engaged with the rotating connecting part 11.

[0057] Preferably, the sliding section 31 is perpendicular to the connecting section 32, and the sliding section 31 is parallel to the rotating section 33; the sliding section 31, the two connecting sections 32, and the two rotating sections 33 are integrally bent. The perpendicularity of the sliding section 31 to the connecting section 32 ensures that the sliding part can move smoothly in the groove and effectively transmit force to the rotating part; while the parallel arrangement of the sliding section 31 to the rotating section 33 ensures the relative stability of the rotation axis and the sliding direction, making the opening and closing action more precise and without jamming; the integrally bent structure not only greatly improves the overall structural strength and durability of the rotating shaft, but also ensures its dimensional accuracy, thereby ensuring that the entire opening and closing mechanism can still maintain a stable and reliable movement trajectory under long-term frequent use.

[0058] According to another aspect of this utility model, reference is made to the appended specification. Figure 1 The present invention further provides an intelligent lawnmower, including an opening and closing mechanism as described in any of the above, and further including: an upper shell 1, on which a camera module 13 is provided; a lower shell 2, on which a PCBA 24 is provided; an FPC flexible cable 4, one end of which is connected to the camera module 13 and the other end of which is connected to the PCBA 24; the opening and closing mechanism is connected between the upper shell 1 and the lower shell 2, and is used to constrain the movement trajectory of the upper shell 1 during the opening and closing process, so as to protect the FPC flexible cable 4 from excessive pulling.

[0059] In this embodiment, by setting the opening and closing mechanism between the upper shell 1 with the camera module 13 and the lower shell 2 with the PCBA 24, and connecting the two using the FPC flexible cable 4, the intelligent lawnmower can realize its core camera function while fundamentally solving the problem of repeatedly opening and closing the upper shell due to daily maintenance or repair. In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described or recorded in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0060] It should be noted that the above embodiments can be freely combined as needed. The above are only optional embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An opening and closing mechanism for connecting an upper housing and a lower housing of a device, wherein the FPC flexible flat cable connected between the upper housing and the lower housing is protected during the opening and closing process, characterized in that, include: The rotating connection portion is provided on the upper shell; A sliding groove is provided in the lower shell; And a rotating shaft, one end of which is slidably accommodated in the groove, and the other end is rotatably connected to the rotating connection part; When the upper shell and the lower shell are opened and closed, the rotating shaft can slide along the length of the slide groove, and when it slides to a preset position in the slide groove, the upper shell can be limited and opened.

2. The opening and closing mechanism according to claim 1, characterized in that, The chute includes a first position and a second position distributed sequentially along its length; When the rotating shaft slides to the first position, the upper shell and the lower shell are in a snap-fit ​​state; When the rotating shaft slides to the second position, the slide groove limits the rotating shaft, so that the upper shell and the lower shell are in an open state.

3. The opening and closing mechanism according to claim 2, characterized in that, When the rotating shaft slides to the first position, the upper shell is parallel to the lower shell; When the rotating shaft slides to the second position, the included angle between the upper shell and the lower shell is not less than 90°.

4. The opening and closing mechanism according to claim 2, characterized in that, The second position of the slide is provided with a limiting structure to limit the upper shell when it is open.

5. The opening and closing mechanism according to claim 4, characterized in that, The limiting structure is a flared arc-shaped corner or arc-shaped limiting boss formed at the end of the slide groove, and a stop structure that limits the upper shell.

6. The opening and closing mechanism according to any one of claims 1-5, characterized in that, Also includes: Two parallel, spaced-apart first fixing plates are fixed to the upper shell, and each first fixing plate is provided with the rotating connection part; Two parallel, spaced-apart second fixing plates are fixed to the lower shell. Each second fixing plate is provided with a sliding groove, and the two sliding grooves are parallel to each other and coaxially aligned.

7. The opening and closing mechanism according to claim 6, characterized in that, The rotating connection part is a round hole or an arc-shaped groove.

8. The opening and closing mechanism according to claim 6, characterized in that, The rotating shaft component includes a sliding section, two connecting sections, and two rotating sections; The two ends of the sliding segment are respectively connected to the corresponding rotating segment through the connecting segment; The sliding section is slidably housed within the two sliding grooves, and the rotating section is rotatably engaged with the rotating connection.

9. The opening and closing mechanism according to claim 8, characterized in that, The sliding section is arranged perpendicularly to the connecting section; The sliding section is arranged parallel to the rotating section; The sliding section, the two connecting sections, and the two rotating sections are integrally bent into shape.

10. A smart lawnmower, characterized in that, Including the opening and closing mechanism as described in any one of claims 1-9, further comprising: The upper casing houses the camera module; The lower casing contains a PCBA. The FPC flexible flat cable has one end connected to the camera module and the other end connected to the PCBA; The opening and closing mechanism is connected between the upper shell and the lower shell and is used to constrain the movement trajectory of the upper shell during the opening and closing process to protect the FPC flexible cable from excessive pulling.

Images