Step detection assembly and sweeping robot

Abstract

The utility model relates to a step detection assembly and a floor mopping robot, the floor mopping robot is provided with the step detection assembly, infrared rays emitted by an infrared emitter penetrate through a convex lens to be reflected and then penetrate through the convex lens again to enter an infrared receiver, and due to the relation of height difference, the step detection assembly can detect the step of the floor mopping robot. When the step is detected, infrared rays emitted by the infrared emitter cannot enter the receiving end of the infrared receiver, so that the step is detected, and the convex lens has a light filtering effect and a light gathering effect and is not influenced under strong light.

Description

Technical Field

[0001] This utility model belongs to the field of sweeping robot technology, specifically relating to a step detection component and a sweeping robot. Background Technology

[0002] Currently, all robot vacuum cleaners' downward-facing modules function normally indoors (without strong sunlight); however, they malfunction outdoors (under strong sunlight). Sunlight affects the light emitted and transmitted by the downward-facing module, causing signal misinterpretation and potentially leading to the robot vacuum falling off stairs or cliffs, resulting in machine damage. Therefore, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a step detection component and a sweeping robot, wherein the step detection component can operate normally under strong light.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a step detection component, including an infrared transmitter, an infrared receiver, a control panel and a convex lens. The infrared rays emitted by the infrared transmitter pass through the convex lens, are reflected, and then pass through the convex lens again before entering the infrared receiver. The control panel is used to receive electrical signals from the infrared transmitter and the infrared receiver.

[0005] Furthermore, the step detection assembly also includes a housing, with an exit hole and an entrance hole formed at the bottom of the housing. The infrared transmitter, infrared receiver, and control panel are installed inside the housing. The emitting end of the infrared transmitter faces the exit hole, and the receiving end of the infrared receiver faces the entrance hole. Two convex lenses are respectively installed at the exit hole and the entrance hole.

[0006] Furthermore, the infrared transmitter and infrared receiver are tilted towards each other.

[0007] Furthermore, the housing has a mounting base, and the mounting base has inclined mounting plates on both sides. The mounting plates are provided with mounting holes, and the infrared transmitter and infrared receiver are respectively installed in the mounting holes of the two mounting plates.

[0008] Furthermore, the angle between the infrared rays emitted by one of the convex lenses and the infrared rays received by the other convex lens is 34°.

[0009] Furthermore, the housing includes an upper housing and a lower housing, with the infrared transmitter, infrared receiver, and control panel installed inside the upper housing, and the lower housing fitted over the lower end of the upper housing.

[0010] Furthermore, an installation interface is formed on the upper surface of the housing.

[0011] A robotic vacuum cleaner includes a robot body and a step detection component, the step detection component being mounted on the lower surface of the robot body.

[0012] Furthermore, the lower surface of the sweeping robot is 20mm above the ground.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The sweeping robot of this utility model is equipped with a step detection component. The infrared light emitted by the infrared emitter passes through the convex lens, is reflected, and then passes through the convex lens again before entering the infrared receiver. Due to the height difference, the infrared light emitted by the infrared emitter cannot enter the receiving end of the infrared receiver, thereby realizing the detection of steps. Moreover, the convex lens has the functions of filtering and focusing light, and is not affected by strong light.

[0015] 2. In this solution, the maximum height detection range of the step detection component is set by adjusting the tilt angle of the infrared transmitter and the infrared receiver and adjusting the parameters of the convex lens. In this solution, the angle formed by the infrared light emitted by one of the convex lenses and the infrared light received by the other convex lens is 34°, and the detection height is 20mm. If it exceeds 20mm, the infrared receiver will not be able to receive the infrared light emitted by the infrared transmitter. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the step detection component in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the step detection component in this utility model from another direction;

[0018] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the upper shell in this utility model;

[0019] Figure 4 This is a side view of the robot body moving on a plane in this utility model.

[0020] Figure 5 This is a cross-sectional structural diagram of the step detection component moving on a plane in this utility model.

[0021] Figure 6 This is a side view of the robot body encountering a step in this utility model.

[0022] Figure 7 This is a cross-sectional view of the step detection component of this utility model when it encounters a step.

[0023] Figure 8This is a cross-sectional structural diagram of the step detection component in this utility model;

[0024] Figure 9 This is a cross-sectional view of the step detection component of this utility model, showing that all the convex lenses in the chain are integrally formed.

[0025] The diagram shows: 1. Robot body; 2. Step detection component; 21. Upper shell; 211. Mounting base; 212. Mounting plate; 213. Mounting interface; 22. Lower shell; 23. Infrared transmitter; 24. Infrared receiver; 25. Control panel; 26. Convex lens. Detailed Implementation

[0026] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0027] In the attached diagram of this scheme, the straight lines with arrows represent the movement path of the infrared rays.

[0028] like Figures 1-8 As shown, this embodiment provides a sweeping robot, including a robot body 1 and a step detection component 2.

[0029] The robot body 1 has a mounting groove on the lower surface near the direction of travel. The mounting groove has an insertable electrical interface, and the step detection component 2 is installed in the mounting groove.

[0030] The step detection assembly 2 includes a housing, an infrared transmitter 23, an infrared receiver 24, a control panel 25, and a convex lens 26.

[0031] The housing includes an upper housing 21 and a lower housing 22. The infrared transmitter 23, infrared receiver 24, and control panel 25 are installed inside the upper housing 21. The infrared transmitter 23 and infrared receiver 24 are inclined towards each other. Specifically, a mounting base 211 is provided inside the upper housing 21. The mounting base 211 has inclined mounting plates 212 on both sides. The mounting plates 212 are provided with mounting holes. The infrared transmitter 23 and infrared receiver 24 are respectively installed in the mounting holes of the two mounting plates 212. A first through hole and a second through hole are provided on the lower surface of the upper housing 21. The emitting end of the infrared transmitter faces the first through hole, and the receiving end of the infrared receiver faces the second through hole.

[0032] The lower housing 22 is fitted and secured to the lower end of the upper housing 21. An ejection port and an injection port are formed on the lower part of the lower housing 22, with the first through hole and the second through hole corresponding to the ejection port and the injection port, respectively. Two convex lenses 26 are installed inside the lower housing 22, respectively positioned at the ejection port and the injection port.

[0033] Another implementation, such as Figure 9As shown, the two convex lenses 26 can be integrally formed.

[0034] The control panel 25 is used to receive electrical signals from the infrared transmitter 23 and the infrared receiver 24. Specifically, the control panel 25 is a PCB panel, which is electrically connected to the infrared transmitter and the infrared receiver. The PCB panel is the type of PCB panel used in the prior art, which will not be described in detail here. An installation interface 213 is formed on the upper surface of the upper housing 21. The installation interface 213 is electrically connected to the PCB panel. When the step detection component 2 is inserted into the installation slot, the installation interface 213 is adapted to the electrical interface.

[0035] In this solution, the maximum height detection range of the step detection component 2 is set by adjusting the tilt angle of the infrared emitter 23 and the infrared receiver 24, and by adjusting the parameters of the convex lens 26. In this embodiment, the angle formed by the infrared light emitted by one of the convex lenses 26 and the infrared light received by the other convex lens is 34°, and the detection height is 20mm. If the height exceeds 20mm, such as... Figure 7 As shown, the infrared receiver 24 will not be able to receive the infrared rays emitted by the infrared transmitter 23.

[0036] Working principle: The robot vacuum cleaner has a step detection component 2 on its lower surface. Infrared light emitted by the infrared emitter 23 is reflected by the convex lens 26 and then passes through the convex lens 26 again before entering the infrared receiver 24. Due to the height difference, the infrared light emitted by the infrared emitter 23 does not reach the receiving end of the infrared receiver 24, thus detecting the step. Furthermore, the convex lens 26 has both filtering and focusing effects, and is unaffected by strong light. Figure 8 As shown.

[0037] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A step detection component, characterized in that: It includes an infrared transmitter, an infrared receiver, a control panel, and a convex lens; the infrared rays emitted by the infrared transmitter pass through the convex lens, are reflected, and then pass through the convex lens again before entering the infrared receiver; the control panel is used to receive electrical signals from the infrared transmitter and the infrared receiver.

2. The step detection component according to claim 1, characterized in that: The step detection assembly also includes a housing, with an exit hole and an entrance hole formed at the bottom of the housing. The infrared transmitter, infrared receiver, and control panel are installed inside the housing. The emitting end of the infrared transmitter faces the exit hole, and the receiving end of the infrared receiver faces the entrance hole. There are two convex lenses, which are respectively installed at the exit hole and the entrance hole.

3. The step detection component according to claim 2, characterized in that: The infrared transmitter and infrared receiver are tilted towards each other.

4. A step detection component according to claim 3, characterized in that: The housing has a mounting base, and the mounting base has inclined mounting plates on both sides. The mounting plates are provided with mounting holes, and the infrared transmitter and infrared receiver are respectively installed in the mounting holes of the two mounting plates.

5. A step detection component according to claim 3, characterized in that: The angle between the infrared rays emitted by one of the convex lenses and the infrared rays received by the other convex lens is 34°.

6. A step detection component according to claim 2, characterized in that: The housing includes an upper housing and a lower housing. The infrared transmitter, infrared receiver and control panel are installed inside the upper housing, and the lower housing is fitted over the lower end of the upper housing.

7. A step detection component according to claim 2, characterized in that: An installation interface is formed on the upper surface of the housing.

8. A robotic vacuum cleaner, characterized in that: It includes a robot body and a step detection component as described in any one of claims 1-7, wherein the step detection component is mounted on the lower surface of the robot body.

9. A sweeping robot according to claim 8, characterized in that: The lower surface of the sweeping robot is 20mm above the ground.

Images