Radar protection anti-collision triggering device and cleaning robot

Abstract

The utility model provides a radar protection anti-collision trigger device and a cleaning robot, and relates to the technical field of cleaning robots, the radar protection anti-collision trigger device comprises an upper cover assembly, a trigger switch assembly, an elastic supporting seat, a radar protection cover and a reset supporting piece. Wherein the trigger switch assembly is connected with the upper cover assembly through the elastic supporting seat; the radar protection cover covers the outer side of the radar and is movably connected with the upper cover assembly, and one side of the radar protection cover is provided with a trigger column which extends downwards and can abut against the trigger switch assembly when the radar protection cover is collided. The reset supporting piece is arranged between the upper cover assembly and the radar protection cover and used for resetting the trigger column after the external force is relieved. The elastic supporting seat can generate elastic deformation displacement when the trigger column extrudes the trigger switch assembly downwards. Therefore, the downward acting force of the trigger column can be buffered to play a role in protecting the trigger switch assembly, so that the trigger switch assembly is not easy to damage, and the sensitivity is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning robots, in particular to a radar protection anti-collision triggering device 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. In order to obtain a higher triggering accuracy, for example, the patent application publication number is CN109717798A, and the patent name is "A radar collision trigger component and cleaning robot", which discloses a method of setting a key installation slot on the upper shell, setting a key contact on the key installation slot, and setting a corresponding extrusion bone position on the radar bracket to abut the key contact when the radar bracket is collided. This structure is simple in design and has high triggering accuracy, but it also has shortcomings. For example, when the collision force is too large, the downward force of the extrusion bone position is large, which is easy to damage the key contact, and then destroy the radar protection anti-collision trigger device.

[0004] Therefore, a radar protection anti-collision trigger device and a cleaning robot that can buffer the downward force of the trigger column, prevent the trigger switch assembly from being easily damaged, and have high sensitivity need to be designed. Utility Model Content

[0005] The purpose of the utility model is to address the defects and shortcomings of the prior art and provide a radar protection anti-collision trigger device and a cleaning robot, which at least solves one of the above-mentioned technical problems. The device can buffer the downward force of the trigger column and has the advantages that the trigger switch component is not easily damaged and has high sensitivity.

[0006] To achieve the above-mentioned purpose, the utility model provides a radar protection anti-collision triggering device, comprising:

[0007] Upper cover assembly;

[0008] A trigger switch assembly is connected to the upper cover assembly via an elastic support seat;

[0009] A radar protection cover, which is arranged on the outside of the radar and is movably connected to the upper cover assembly, and has a trigger column on one side thereof extending downward and capable of contacting the trigger switch assembly when the radar protection cover is hit;

[0010] A reset support member, disposed between the upper cover assembly and the radar protection cover, and used to reset the trigger column after the external force is released;

[0011] Wherein, the elastic support seat can generate elastic deformation displacement when the trigger column presses the trigger switch assembly downward.

[0012] Optionally, the elastic support seat includes: a support seat for assembling the trigger switch assembly, and an elastic cantilever connected to the support seat at one end and connected to the upper cover assembly at the other end.

[0013] Optionally, the elastic cantilever includes a connecting section connected to the upper cover assembly and arranged laterally, and a deformation section connected to the connecting section, extending downward, and connected to the support seat.

[0014] Optionally, the deformation section is hook-shaped.

[0015] Optionally, the elastic support seat and the upper cover assembly are integrally formed.

[0016] Optionally, elastic claws are symmetrically provided on the support base, and the trigger switch assembly is assembled on the support base through the elastic claws.

[0017] Optionally, one end of the radar protection cover is hinged to the upper cover assembly, and the reset support is a spring sheet having one end connected to the radar protection cover and the other end abutting against the upper end surface of the upper cover assembly.

[0018] Optionally, 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] Optionally, the trigger switch assembly includes a PCBA circuit board, and a trigger switch disposed on the PCBA circuit board and electrically connected to the PCBA circuit board.

[0020] Another aspect of the utility model provides a cleaning robot, comprising a main body, the above-mentioned radar protection anti-collision triggering device arranged on the main body, and a radar arranged on an upper cover assembly.

[0021] Compared with the prior art, the advantages of this application are:

[0022] Since the trigger switch assembly of the radar protection anti-collision trigger device is connected to the upper cover assembly through an elastic support seat, and the elastic support seat can produce elastic deformation displacement when the trigger column presses the trigger switch assembly downward. In this way, when the radar protection cover is subjected to excessive collision force, the elastic support seat can produce elastic deformation displacement under the pressure of the trigger column, and then can buffer the downward force of the trigger column to protect the trigger switch assembly, so it has the advantage that the trigger switch assembly is not easily damaged; at the same time, since the elastic support seat has the ability of elastic deformation, the distance between the trigger column and the trigger switch assembly can be set smaller, so that higher sensitivity can be obtained.

[0023] In addition, the upper cover assembly is provided with a height-limiting positioning column near 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. This can limit the downward movement of the trigger column, and further prevent the trigger column from damaging the trigger switch assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] 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;

[0026] 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;

[0027] Figure 3 This is a schematic diagram of the structure of the radar protection anti-collision triggering device according to an embodiment of the utility model;

[0028] Figure 4 This is a partial structural exploded schematic diagram of the radar protection anti-collision triggering device according to an embodiment of the utility model;

[0029] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at F in the middle;

[0030] Figure 6 This is a schematic diagram of the top view of the structure of the radar protection anti-collision trigger device according to an embodiment of the utility model;

[0031] Figure 7 for Figure 6 Schematic diagram of the cross-section structure along line AA;

[0032] Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at D in the middle;

[0033] Fig. 9 for Figure 6 Schematic diagram of the cross-section structure along line BB;

[0034] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure at point E in the middle.

[0035] Description of Reference Numerals

[0036] 1000-Cleaning robot;

[0037] 100- radar protection anti-collision trigger device;

[0038] 1-upper cover assembly; a-radar assembly slot; b-radar protection cover assembly slot; c-reset support assembly slot; d-trigger switch assembly assembly slot hole; 11-height limit positioning column;

[0039] 2-trigger switch assembly; 21-PCBA circuit board; 22-trigger switch; 23-circuit;

[0040] 3- radar protection cover; 31- trigger column; e- step hole;

[0041] 4-elastic support seat; 41-support seat; 42-elastic claw buckle; 43-elastic cantilever; 44-connecting section; 45-deformation section; 46-reinforcement rib;

[0042] 5-shrapnel;

[0043] 6- Radar;

[0044] 7- screws;

[0045] 200-main body;

[0046] 210 - housing; 220 - walking wheel assembly; 230 - roller brush assembly; 240 - dust box assembly; 250 - driving circuit board. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] Please refer to Figure 1 , Figure 2 and Figure 4 The embodiment of the utility model provides a cleaning robot 1000, including a main body 200, a radar protection anti-collision trigger device 100 disposed on the main body 200, and a radar 6 disposed on the upper cover assembly 1 in the radar protection anti-collision trigger device 100. Among them, the main body 200 includes a shell 210, and functional components such as 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 disposed on the shell 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 6, as well as the connection relationship and position relationship, are all prior art, and will not be expanded too much here. The radar protection anti-collision trigger device 100 is described in detail below.

[0050] Please refer to Figures 1 to 10The embodiment of the utility model provides a radar protection anti-collision trigger device 100, including: an upper cover assembly 1, a trigger switch assembly 2, a radar protection cover 3, and a reset support. The upper cover assembly 1 is assembled and connected with the main body 200 of the cleaning robot 1000. It has a radar assembly slot a, a radar protection cover assembly slot b, a reset support assembly slot c, and a trigger switch assembly assembly slot hole d. Optionally, the upper cover assembly 1 can be integrally formed by injection molding of thermoplastic or thermosetting materials, or it can be connected into one by a plurality of parts through fasteners, which is not specifically limited here. The radar 6 can be assembled in the radar assembly slot a through fasteners (not shown in the figure), and the trigger switch assembly 2 is connected to the upper cover assembly 1 through an elastic support seat 4, and is located in the trigger switch assembly slot hole d. The radar protection cover 3 is arranged on the outside of the radar 6, and is movably connected to the upper cover assembly 1, and is correspondingly assembled on the radar protection cover assembly slot b, and one side thereof has a trigger column 31 extending downward and resisting the trigger switch assembly 2 when the radar protection cover 3 is collided. Specifically, there is a preset gap between the inner wall of the radar protection cover 3 and the radar 6, so that even after the radar protection cover 3 moves to the extreme position relative to the upper cover assembly 1, it still does not touch the radar 6, thereby protecting the radar 6. Optionally, one end of the radar protection cover 3 is hinged to the upper cover assembly 1. The trigger column 31 is arranged in an area of ​​the radar protection cover 3 relatively far away from the hinge point of the radar protection cover 3, for example, on the opposite side of the hinge point, or obliquely to the side. The reset support is arranged between the upper cover assembly 1 and the radar protection cover 3, and is located in the reset support assembly slot c, for resetting the trigger column 31 after the external force is released; that is, the reset support elastically supports the radar protection cover 3 after the collision external force is released, so that the trigger column 31 is suspended above the trigger switch assembly 2. Among them, the elastic support seat 4 can generate elastic deformation displacement when the trigger column 31 presses the trigger switch assembly 2 downward, that is, when the trigger column 31 presses the trigger switch assembly 2 downward, the elastic support seat 4 can generate elastic deformation displacement downward and / or to the side.

[0051] Since the trigger switch assembly 2 of the radar protection anti-collision trigger device 100 is connected to the upper cover assembly 1 through the elastic support seat 4, and the elastic support seat 4 can produce elastic deformation displacement when the trigger column 31 presses the trigger switch assembly 2 downward. In this way, when the radar protection cover 3 is subjected to excessive collision force, the elastic support seat 4 can produce elastic deformation displacement under the pressure of the trigger column 31, and then can buffer the downward force of the trigger column 31 to protect the trigger switch assembly 2, so that the trigger switch assembly 2 is not easily damaged. At the same time, since the elastic support seat 4 has the ability of elastic deformation, the distance between the trigger column 31 and the trigger switch assembly 2 can be set to be smaller, so that higher sensitivity can be obtained.

[0052] Preferably, please refer to Figure 1 , Figure 4 , Figure 5 and Figure 8 In this embodiment, the elastic support seat 4 includes a support seat 41 and an elastic cantilever 43. Among them, the support seat 41 is used to assemble the trigger switch assembly 2. Specifically, the support seat 41 is symmetrically provided with elastic claw buckles 42, and the trigger switch assembly 2 is assembled on the support seat 41 through the elastic claw buckles 42. The use of the elastic claw buckles 42 to assemble the trigger switch assembly 2 has a simple structure and convenient assembly operation. Of course, in other embodiments, the trigger switch assembly 2 can also be assembled by screws and the support seat 41, which is not specifically limited here. One end of the elastic cantilever 43 is connected to the support seat 41, and the other end is connected to the upper cover assembly 1. In this way, the elastic support seat 4 can be suspended in the assembly slot position d of the trigger switch assembly. When the radar protection cover 3 is collided, the radar protection cover 3 drives the trigger column 31 to move downward, so that the trigger column 31 contacts the trigger switch assembly 2, thereby generating a collision signal, and the trigger switch assembly 2 is electrically connected to the drive circuit board 250. The trigger switch assembly 2 converts the collision signal into an electrical signal and sends it to the drive circuit board 250, thereby replanning the route for the cleaning robot 1000. When the radar protection cover 3 is hit by a collision with too great a force, the trigger column 31 can press the trigger switch assembly 2 downward, and the trigger switch assembly 2 pushes the support seat 41 to cause the elastic cantilever 43 to rotate, and at the same time produces elastic deformation downward and to the side, so as to buffer the downward force of the trigger column 31, thereby protecting the trigger switch assembly 2. Of course, after the trigger column 31 releases the squeezing of the trigger switch assembly 2, the elastic support seat 4 returns to an undeformed state under the action of elastic potential energy. Of course, in other embodiments, the elastic support seat 4 may also include a support seat 41 for assembling the trigger switch assembly 2, and a compression spring arranged at the lower end of the support seat 41, one end of the compression spring abuts against the support seat, and the other end abuts against the upper cover assembly 1. In this way, when the trigger column 31 presses the trigger switch assembly 2 downward, the elastic support seat 4 can also produce elastic deformation displacement to play a buffering role.

[0053] For details, please refer to Figure 8 In the present embodiment, the elastic cantilever 43 includes a connecting section 44 and a deformation section 45; the connecting section 44 is connected to the upper cover assembly 1 and is arranged horizontally; the deformation section 45 is connected to the connecting section 44, extends downward, and is connected to the support seat 41. Specifically, in the present embodiment, the deformation section 45 is hook-shaped. At this time, the connecting section 44 and the support seat 41 of the elastic support seat 4 are located at different heights. Of course, the deformation section 45 can also be connected to the connecting section 44 at one end and extend obliquely downward, and connected to the support seat 41 at the other end. Optionally, the elastic support seat 4 and the upper cover assembly 1 are made of plastic material as a whole. Preferably, in order to improve the strength of the hook-shaped deformation section 45, a reinforcing rib 46 is provided on the deformation section 45.

[0054] Optionally, see Figure 3 and Figure 4 In this embodiment, the reset support member is a spring 5 with one end connected to the radar protection cover 3 and the other end abutting against the upper end surface of the upper cover assembly 1. Of course, the reset support member can also be a compression spring or a torsion spring with one end connected to the protection cover and the other end abutting against the upper end surface of the upper cover assembly 1; no specific limitation is made here.

[0055] In order to further prevent the trigger column 31 from damaging the trigger switch assembly 2, optionally, please refer to Figure 4 and Fig.10 In this embodiment, the upper cover assembly 1 is provided with a height-limiting positioning column 11 at a position close to the trigger switch assembly 2; the radar protection cover 3 is provided with a step hole e corresponding to the height-limiting positioning column 11, and the radar protection cover 3 and the upper cover assembly 1 are connected to a limit position through the step hole e, the height-limiting positioning column 11, and the height-limiting fastener. Specifically, in this embodiment, the height-limiting positioning column 11 has an internal thread, and the height-limiting fastener is a screw 7, the screw 7 and the internal thread of the height-limiting positioning column 11 cooperate, and the lower surface of the head of the screw 7 is pressed on the upper surface of the step surface of the step hole e of the radar protection cover 3. In this way, as long as the height of the height-limiting positioning column 11 is set so that the trigger column 31 can be driven to contact the trigger switch assembly 2 within the descending stroke of the radar protection cover 3, and is less than the maximum elastic deformation displacement of the elastic support seat 4, it is possible to prevent the trigger column 31 from damaging the trigger switch assembly 2.

[0056] Optionally, see Figure 3 , Figure 5 and Figure 8 In this embodiment, the trigger switch assembly 2 includes a PCBA circuit board 21, and a trigger switch 22 disposed on the PCBA circuit board 21 and electrically connected to the PCBA circuit board 21. Optionally, the PCBA circuit board 21 is connected to a driving circuit board 250 in the main body 200 of the cleaning robot 1000 through a line 23.

[0057] 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 anti-collision triggering device, characterized in that: include: Upper cover assembly (1); A trigger switch assembly (2) is connected to the upper cover assembly (1) via an elastic support seat (4); A radar protection cover (3) is arranged on the outside of the radar (6) and is movably connected to the upper cover assembly (1), and has a trigger column (31) extending downward on one side thereof and capable of contacting the trigger switch assembly (2) when the radar protection cover (3) is hit; A reset support member, arranged between the upper cover assembly (1) and the radar protection cover (3), and used for resetting the trigger column (31) after the external force is released; Wherein, the elastic support seat (4) can generate elastic deformation displacement when the trigger column (31) presses the trigger switch assembly (2) downward.

2. The radar protection anti-collision triggering device according to claim 1, characterized in that: The elastic support seat (4) comprises: a support seat (41) for assembling the trigger switch assembly (2), and an elastic cantilever (43) connected to the support seat (41) at one end and connected to the upper cover assembly (1) at the other end.

3. The radar protection anti-collision triggering device according to claim 2, characterized in that: The elastic cantilever (43) comprises a connecting section (44) connected to the upper cover assembly (1) and arranged transversely, and a deformation section (45) connected to the connecting section (44), extending downward, and connected to the support seat (41).

4. The radar protection anti-collision triggering device according to claim 3, characterized in that: The deformation section (45) is hook-shaped.

5. The radar protection anti-collision triggering device according to claim 1, characterized in that: The elastic support seat (4) and the upper cover assembly (1) are integrally formed.

6. The radar protection anti-collision triggering device according to claim 2, characterized in that: The support seat (41) is symmetrically provided with elastic claw buckles (42), and the trigger switch assembly (2) is assembled on the support seat (41) via the elastic claw buckles (42).

7. The radar protection anti-collision triggering device according to claim 1, characterized in that: One end of the radar protection cover (3) is hinged to the upper cover assembly (1); the reset support member is a spring sheet (5) having one end connected to the radar protection cover (3) and the other end abutting against the upper end surface of the upper cover assembly (1).

8. The radar protection anti-collision triggering device according to claim 7, characterized in that: The upper cover assembly (1) is provided with a height limiting positioning column (11) at a position close to the trigger switch assembly (2); the radar protection cover (3) is provided with a step hole (e) corresponding to the height limiting positioning column (11); the radar protection cover (3) and the upper cover assembly (1) are connected in a limited position via the step hole (e), the height limiting positioning column (11), and the height limiting fastener.

9. The radar protection anti-collision triggering device according to claim 1, characterized in that: The trigger switch assembly (2) comprises a PCBA circuit board (21), and a trigger switch (22) arranged on the PCBA circuit board (21) and electrically connected to the PCBA circuit board (21).

10. A cleaning robot, characterized in that: It comprises a main body (200), a radar protection anti-collision triggering device as claimed in any one of claims 1 to 9 arranged on the main body (200), and a radar (6) arranged on the upper cover assembly (1).

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