Radar protective cover assembling structure and cleaning robot

Abstract

The utility model provides a radar protective cover assembling structure and a cleaning robot, and relates to the technical field of cleaning robots. The rotating shaft mounting seat is arranged on the upper end surface of the upper cover assembly; the rotating shaft is connected with one side of the radar protection cover and is in running fit with the rotating shaft mounting seat; wherein the rotating shaft mounting seat is provided with a shaft hole and a clamping port with one end communicated with the shaft hole and the other end communicated with the outside; the rotating shaft can be clamped into the shaft hole through the clamping opening. Therefore, the upper cover assembly does not need to reserve excessive rotating shaft insertion space on one side of the rotating shaft mounting seat, so that the design of the upper cover assembly is more compact, and meanwhile, the rotating shaft of the radar protection cover and the rotating shaft mounting seat of the upper cover assembly are more convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning robots, in particular to a radar protection cover assembly structure and a cleaning robot. Background Art

[0002] Cleaning robots can automatically clean the floor, greatly freeing people's hands. In order to obtain the navigation function, cleaning robots are equipped with an upward protruding radar on the top shell. However, there is a gap between some furniture and the bottom plate. As a result, when performing sweeping operations, the cleaning robot will move into the gap between the furniture and the floor, and collide with the bottom of the furniture, thereby damaging the radar and getting stuck. For this reason, a protective cover is required on the outside of the radar, and an obstacle avoidance structure is set up. The obstacle avoidance structure can convert the collision signal into an electrical signal and transmit it to the main board, thereby replanning the route for the cleaning robot.

[0003] At present, the radar protection cover is usually triggered by a touch switch, and the radar protection cover is usually connected to the upper shell by a hinge shaft. For example, the patent application number is CN109717798A, and the patent name is "A radar collision trigger component and a cleaning robot", which discloses a rotating shaft bracket on the upper shell, and a connecting part extending downward and having a rotating shaft mounting hole is provided on the lower surface of the radar bracket; the rotating shaft passes through the shaft hole of the rotating shaft bracket and the rotating shaft mounting hole of the connecting part from one side to realize the assembly of the radar bracket and the upper shell. Such a structure has some shortcomings, for example: sufficient space must be left on the upper shell to insert the rotating shaft from one side, so that the design of the upper shell is not compact enough and the assembly operation is more difficult; in addition, because the rotating shaft is located below the radar bracket, the side of the radar bracket close to the rotating shaft is not easy to cause the radar bracket to rotate when touched, and then the touch switch is not easy to be triggered, so there is a triggering blind spot.

[0004] Therefore, a radar protection cover assembly structure and a cleaning robot with compact design, convenient assembly, and no blind spot in triggering need to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a radar protection cover assembly structure and a cleaning robot to address the defects and shortcomings of the prior art, and to solve at least one of the above-mentioned technical problems. The utility model has the advantages of compact design, easy assembly, and no blind spots in triggering.

[0006] To achieve the above-mentioned purpose, the utility model provides a radar protection cover assembly structure, which is applied to a cleaning robot, comprising:

[0007] A rotating shaft mounting seat is arranged on the upper end surface of the upper cover assembly;

[0008] A rotating shaft connected to one side of the radar protection cover and rotatably matched with the rotating shaft mounting seat;

[0009] The rotating shaft mounting seat has an axial hole and a card interface with one end connected to the axial hole and the other end connected to the outside world; the rotating shaft can be inserted into the axial hole through the card interface.

[0010] Optionally, the distance between the two engaging surfaces of the card interface is smaller than the diameter of the shaft hole, and the rotating shaft is a straight-line flat pin shaft matching the shape of the shaft hole and the card interface.

[0011] Optionally, the upper cover assembly has a shaft assembly slot, and the shaft mounting seat is symmetrically arranged on two opposite inner side surfaces of the shaft assembly slot.

[0012] Optionally, the distance between the center of the shaft hole and the bottom surface of the shaft assembly slot is greater than the radius of the shaft hole.

[0013] Optionally, the rotating shaft is connected to a bottom surface of one side of the radar protection cover through a connecting portion that first extends laterally toward the radar protection cover and then extends upward.

[0014] Optionally, the upper surface and / or lower surface of the transversely extending section of the connecting portion is provided with reinforcing ribs.

[0015] Optionally, a glue removal groove is provided on the bottom surface of the slotted flat pin shaft.

[0016] Optionally, the distance between the two card contact surfaces of the card interface is elastically adjustable.

[0017] On the other hand, the utility model provides a cleaning robot, comprising: a main body; an upper cover assembly with a trigger switch assembly mounted on the upper end of the main body; a radar arranged on the upper cover assembly; a radar protection cover arranged on the outer side of the radar and rotatably connected to the upper cover assembly through a radar protection cover assembly structure as described in any of the above items; a trigger column extending downwardly on one side of the radar protection cover away from the radar protection cover assembly structure and capable of contacting the trigger switch assembly when the radar protection cover is collided.

[0018] Optionally, the cleaning robot also includes a reset support member arranged between the upper cover assembly and the radar protection cover, for resetting the trigger column after the external force is released; the upper cover assembly is provided with a height limiting positioning column at a position close to the trigger switch assembly; the radar protection cover is provided with a step hole corresponding to the height limiting positioning column, and the radar protection cover and the upper cover assembly are connected in a limited position through the step hole, the height limiting positioning column, and the height limiting fastener.

[0019] Compared with the prior art, the advantages of this application are:

[0020] Since the shaft mounting seat has a shaft hole and a card interface with one end connected to the shaft hole and the other end connected to the outside world, the shaft can be inserted into the shaft hole through the card interface. In this way, the upper cover assembly does not need to reserve too much shaft insertion space on one side of the shaft mounting seat, thereby making the design of the upper cover assembly more compact and the assembly method of the shaft of the radar protection cover and the shaft mounting seat of the upper cover assembly more convenient.

[0021] In addition, since the rotating shaft is connected to one side of the radar protection cover, the rotating shaft is connected to the bottom surface of one side of the radar protection cover through a connecting portion that first extends horizontally toward the radar protection cover and then extends upward. That is, the rotating shaft is arranged on the outside of the radar protection cover, so no matter where the collision occurs on the radar protection cover, the radar protection cover can be rotated relative to the upper cover assembly, so that there is no blind spot for triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the exploded structure of the cleaning robot from one perspective of the embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the cleaning robot from another perspective of the embodiment of the utility model;

[0025] Figure 3 This is a schematic structural diagram of the radar protection cover in an assembled state in an embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the partial structural decomposition of an embodiment of the utility model;

[0027] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 6 A top view of the radar protection cover in the embodiment of the utility model in an assembled state;

[0029] Figure 7 for Figure 6 Sectional view along line BB;

[0030] Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at C in the middle;

[0031] Fig. 9 This is a schematic diagram of the structure of the radar protection cover in an unassembled state in an embodiment of the utility model;

[0032] Fig.10 for Fig. 9 A schematic diagram of the local enlarged structure at D in the middle;

[0033] Fig.11 for Fig. 9 Schematic diagram of the local enlarged structure at point E in the middle.

[0034] Description of Reference Numerals

[0035] 1000-Cleaning robot;

[0036] 100- Radar protection cover assembly structure;

[0037] 1-shaft mounting seat; a-shaft hole; b-card interface;

[0038] 2-slotted flat pin; c-groove for removing glue;

[0039] 3-connecting part; 31-lateral extension section; 32-vertical extension section; 33-reinforcement rib;

[0040] 4- screws;

[0041] 200-main body; 210-housing; 220-travel wheel assembly; 230-roller brush assembly; 240-dust box assembly; 250-driving circuit board;

[0042] 300-upper cover assembly; 310-trigger switch assembly; 311-PCBA circuit board; 312-trigger switch; 320-height limit positioning column; d-shaft assembly slot; 330-circuit;

[0043] 400 - radar;

[0044] 500- radar protection cover; 510- trigger column; 520- reset support; e- step hole. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "back", "side", "circumferential" and the like in the present invention indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the words "first", "second" and the like are only used to distinguish multiple components or structures with the same or similar structures, and do not represent any special limitation on the setting order or connection relationship.

[0047] Please refer to Figures 1 to 9The embodiment of the utility model provides a cleaning robot 1000, including: a main body 200, an upper cover assembly 300, a radar 400 and a radar protection cover 500. Among them, the main body 200 includes a housing 210, a walking wheel assembly 220, a roller brush assembly 230, an air duct assembly (not shown in the figure), a dust box assembly 240 and a driving circuit board 250 and other functional components arranged on the housing 210. Specifically, the functional components such as the walking wheel assembly 220, the roller brush assembly 230, the air duct assembly, the dust box assembly 240, the driving circuit board 250 and the radar 400, as well as the connection relationship and position relationship, are all prior art, and will not be expanded too much here. The upper cover assembly 300 is assembled at the upper end of the main body 200 and has a trigger switch assembly 310. Specifically, the trigger switch assembly 310 may include a PCBA circuit board 311, and a trigger switch 312 arranged on the PCBA circuit board 311 and electrically connected to the PCBA circuit board 311. Optionally, the PCBA circuit board 311 is connected to the driving circuit board 250 in the main body 200 of the cleaning robot 1000 through the line 330. The radar 400 is arranged on the upper cover assembly 300. The radar protection cover 500 is arranged on the outside of the radar 400 and is rotatably connected to the upper cover assembly 300 through the radar protection cover assembly structure 100. The radar protection cover 500 has a trigger column 510 extending downward on the side away from the radar protection cover assembly structure 100 and can resist the trigger switch assembly 310 when the radar protection cover 500 is collided. The cleaning robot 1000 also includes a reset support 520 arranged between the upper cover assembly 300 and the radar protection cover 500, which is used to reset the trigger column 510 after the external force is released. Specifically, the reset support 520 can be a compression spring or a shrapnel, which is not specifically limited here. The upper cover assembly 300 is provided with a height limiting positioning column 320 near the trigger switch assembly 310; the radar protection cover 500 is provided with a step hole e corresponding to the height limiting positioning column 320, and the radar protection cover 500 and the upper cover assembly 300 are connected by the step hole e, the height limiting positioning column 320, and the height limiting fastener. Specifically, in this embodiment, the height limiting positioning column 320 has an internal thread, and the height limiting fastener is a screw 4, the screw 4 and the internal thread of the height limiting positioning column 320 cooperate, and the lower surface of the head of the screw 4 is pressed on the upper surface of the step surface of the step hole e of the radar protection cover 500. In this way, the stability of the assembly of the radar protection cover 500 is ensured to better protect the radar 400.

[0048] The radar protection cover assembly structure 100 is described in detail below.

[0049] Please refer to Figure 4 , Figures 9 to 11, an embodiment of the utility model provides a radar protection cover assembly structure 100, comprising: a shaft mounting seat 1 and a shaft. The shaft mounting seat 1 is arranged on the upper end surface of the upper cover assembly 300; specifically, in this embodiment, the upper end surface of the upper cover assembly 300 has a shaft mounting groove d, and the shaft mounting seat 1 is symmetrically arranged on the two inner side surfaces opposite to the shaft mounting groove d. Of course, in other embodiments, the shaft mounting seat 1 can also be arranged protruding from the upper end surface of the upper cover assembly 300, which is not specifically limited here. The shaft is connected to one side of the radar protection cover 500 and rotates with the shaft mounting seat 1. The shaft mounting seat 1 has an axial hole a, and a card interface b that is connected to the axial hole a at one end and connected to the outside at the other end; the shaft can be inserted into the axial hole a through the card interface b.

[0050] In this way, the upper cover assembly 300 does not need to reserve too much space for the shaft insertion on one side of the shaft mounting seat 1, thereby making the design of the upper cover assembly 300 more compact and making the assembly method of the shaft of the radar protection cover 500 and the shaft mounting seat 1 of the upper cover assembly 300 more convenient.

[0051] Optionally, see Fig.10 and Fig.11 In this embodiment, the distance between the two engagement surfaces of the card interface b is smaller than the diameter of the shaft hole a, and the rotating shaft is a flat pin 2 that matches the shape of the shaft hole a and the card interface b. In this way, during assembly, the flat pin 2 can first be vertically passed through the card interface b, enter the shaft hole a, and then rotated 90 degrees to achieve the self-locking function, thereby ensuring the stable rotational cooperation between the rotating shaft and the rotating shaft mounting seat 1. Specifically, the flat pin 2 referred to here can be considered as a cross-section of the rotating shaft that is a figure remaining after symmetrically cutting off two slightly arc-shaped bows on the basis of a circle; that is, the flat pin 2 includes two symmetrical planes and two symmetrical arc surfaces. In this embodiment, the rotating shaft is only set as a flat pin 2 in the rotating shaft part that matches the shaft hole a and the card interface b, and the rest of the part does not hinder the rotation of the rotating shaft. For example, in this embodiment, the bearing seat is symmetrically set on the two inner sides opposite to the rotating shaft assembly slot d, and the parts that match the bearing seat at both ends of the rotating shaft are flat pins 2. In other embodiments, if the bearing seat is a continuously protruding bearing seat, it is also only necessary to set the matching part of the rotating shaft and the bearing seat as a flat pin 2. In other embodiments, the distance between the two card-jointing surfaces of the card interface b can also be equal to the diameter of the shaft hole a, but it is necessary to add a limiter (not shown in the figure) to achieve stable rotational matching between the rotating shaft and the rotating shaft mounting seat 1. Optionally, in another embodiment, the distance between the two card-jointing surfaces of the card interface b can be elastically adjusted, that is, the part of the rotating shaft mounting seat 1 that forms the card interface b is made of elastic rubber material. In this way, when the rotating shaft is inserted into the card interface b, the distance between the two card-jointing surfaces of the card interface b can be appropriately enlarged to facilitate the passage of the rotating shaft, and when the rotating shaft passes through, it returns to its original size through its own elastic restoring force to achieve the self-locking function.

[0052] In order to make the radar protection cover 500 have a sufficient flip angle when rotating around the rotation axis, optionally, please refer to Fig.10 In this embodiment, the distance between the center of the shaft hole a and the bottom surface of the shaft assembly slot d is greater than the radius of the shaft hole a. In this way, when the radar protection cover 500 is hit, the radar protection cover 500 can rotate around the shaft to a sufficient flip angle without interfering with the bottom surface of the shaft assembly slot d.

[0053] In order to achieve all-round triggering of the radar protection cover 500 without blind spots, optionally, please refer to Fig.11 In this embodiment, the rotating shaft is connected to the bottom surface of one side of the radar protection cover 500 through the connecting portion 3. Specifically, the connecting portion 3 first extends horizontally from the outer peripheral surface of the rotating shaft to the direction close to the radar protection cover 500, and then extends upward to connect with the bottom surface of one side of the radar protection cover 500. That is, the connecting portion 3 includes a horizontal extension section 31 and a vertical extension section 32. Specifically, the width of the connecting portion 3 is less than the axial length of the rotating shaft. In this way, since the rotating shaft is arranged on the outside of the radar protection cover 500, no matter where the collision occurs in the radar protection cover 500, the radar protection cover 500 can be rotated relative to the upper cover assembly 300, so that there is no blind spot. Specifically, in this embodiment, the rotating shaft, the connecting portion 3 and the radar protection cover 500 are manufactured by integral injection molding. Of course, in other embodiments, the rotating shaft, the connecting portion 3 and the radar protection cover 500 can also be independent components connected by fasteners, which is not specifically limited here.

[0054] In order to improve the supporting strength of the connecting portion 3, preferably, please refer to Fig.11 In this embodiment, a reinforcing rib 33 is provided on the upper surface and / or the lower surface of the transverse extension section 31 of the connecting portion 3.

[0055] In this embodiment, the upper cover assembly 300, the radar protection cover 500 and the rotating shaft can all be made of plastic materials. However, plastic products are prone to shrinkage after molding. In particular, in this embodiment, the rotating shaft is inserted into the shaft hole a through the card interface b to achieve a rotational connection. In order to prevent the deformation of the rotating shaft, preferably, please refer to Fig.11 In this embodiment, a glue removal groove c is provided on the bottom surface of the flat pin shaft 2.

[0056] The working and assembly principle or process of the utility model is roughly as follows:

[0057] First, flip the radar protection cover 500 with the slotted flat pin 2 90 degrees, that is, ensure that the slotted flat pin 2 vertically passes through the card interface b, enters the shaft hole a, and then rotates 90 degrees to complete the assembly connection of the slotted flat pin 2 and the shaft mounting seat 1; then align the step hole e of the radar protection cover 500 with the height limiting positioning column 320 of the upper cover assembly 300, and realize the height limiting assembly through the screw 4, thus completing the assembly of the radar protection cover 500 and the upper cover assembly 300.

[0058] When the radar protection cover 500 is hit, the radar protection cover 500 rotates around the rotating shaft, thereby driving the trigger column 510 to move downward, so that the trigger column 510 hits the trigger switch assembly 310, thereby generating a collision signal, and the trigger switch assembly 310 is electrically connected to the driving circuit board 250. The trigger switch assembly 310 converts the collision signal into an electrical signal and sends it to the driving circuit board 250, thereby replanning the route for the cleaning robot 1000. After the external force is removed, the reset support 520 elastically supports the radar protection cover 500, so that the trigger column 510 is suspended above the trigger switch assembly 310.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A radar protection cover assembly structure, applied to a cleaning robot, characterized in that: include: A rotating shaft mounting seat (1) is arranged on the upper end surface of the upper cover assembly (300); A rotating shaft connected to one side of the radar protection cover (500) and rotatably matched with the rotating shaft mounting seat (1); The rotating shaft mounting seat (1) has an axial hole (a), and a card interface (b) with one end connected to the axial hole (a) and the other end connected to the outside; the rotating shaft can be inserted into the axial hole (a) through the card interface (b).

2. The radar protection cover assembly structure according to claim 1, characterized in that: The distance between the two engagement surfaces of the card interface (b) is smaller than the diameter of the shaft hole (a), and the rotating shaft is a straight flat pin shaft (2) that matches the shape of the shaft hole (a) and the card interface (b).

3. The radar protection cover assembly structure according to claim 2, characterized in that: The upper cover assembly (300) has a rotating shaft assembly slot (d), and the rotating shaft mounting seat (1) is symmetrically arranged on two opposite inner side surfaces of the rotating shaft assembly slot (d).

4. The radar protection cover assembly structure according to claim 3, characterized in that: The distance between the center of the shaft hole (a) and the bottom surface of the shaft assembly slot (d) is greater than the radius of the shaft hole (a).

5. The radar protection cover assembly structure according to claim 1, characterized in that: The rotating shaft is connected to a bottom surface of one side of the radar protection cover (500) through a connecting portion (3) that first extends laterally in a direction close to the radar protection cover (500) and then extends upward.

6. The radar protection cover assembly structure according to claim 5, characterized in that: The upper surface and / or lower surface of the transverse extension section (31) of the connecting portion (3) is provided with reinforcing ribs (33).

7. The radar protection cover assembly structure according to claim 2, characterized in that: The bottom surface of the one-way flat pin shaft (2) is provided with a glue removal groove (c).

8. The radar protection cover assembly structure according to claim 1, characterized in that: The distance between the two card contact surfaces of the card interface (b) can be flexibly adjusted.

9. A cleaning robot, characterized in that: include: A main body (200); an upper cover assembly (300) having a trigger switch assembly (310) mounted on the upper end of the main body (200); a radar (400) arranged on the upper cover assembly (300); a radar protection cover (500) arranged on the outer side of the radar (400) and rotatably connected to the upper cover assembly (300) through a radar protection cover assembly structure according to any one of claims 1 to 8; a trigger column (510) extending downwardly on a side of the radar protection cover (500) away from the radar protection cover assembly structure and capable of contacting the trigger switch assembly (310) when the radar protection cover (500) is impacted.

10. The cleaning robot according to claim 9, characterized in that: Also includes: A reset support member (520) is arranged between the upper cover assembly (300) and the radar protection cover (500) and is used for resetting the trigger column (510) after the external force is released; the upper cover assembly (300) is provided with a height limiting positioning column (320) at a position close to the trigger switch assembly (310); the radar protection cover (500) is provided with a step hole (e) corresponding to the height limiting positioning column (320); the radar protection cover (500) and the upper cover assembly (300) are connected in a limited position through the step hole (e), the height limiting positioning column (320), and the height limiting fastener.

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