Cliff sensor of sweeper

Abstract

The utility model relates to a cliff sensor of a sweeper. The cliff sensor comprises a host of the sweeper, and a left shell, a right shell, a transmitting tube, a receiving tube and a plane lens of the cliff sensor, the left shell or the right shell is provided with a first mounting position, a second mounting position and a third mounting position, the transmitting tube is mounted in the first mounting position and is perpendicular to the ground, the receiving tube is mounted in the second mounting position and is inclined relative to the ground, and the plane lens is mounted in the third mounting position and is perpendicular to the ground. The main machine is provided with an installation groove, the cliff sensor is installed in the installation groove, the left shell and the right shell are clamped by the inner side wall of the installation groove, and therefore the transmitting tube, the receiving tube and the plane lens are clamped in the first installation position, the second installation position and the third installation position respectively. The cliff sensor structure of the sweeper is simplified.

Description

Technical Field

[0001] The utility model relates to the field of floor sweepers, in particular to a cliff sensor for a floor sweeper. Background Art

[0002] With the rapid development of smart home technology, floor sweeping robots, as intelligent devices that can automatically clean the ground and reduce the burden of household cleaning, have been widely used in household and commercial environments. In order to ensure the safe and efficient operation of floor sweeping robots in complex and changeable environments, especially to avoid damage caused by falling from the edges of "cliffs" such as stairs and steps, cliff sensors have become one of the indispensable key components of floor sweeping robots. A floor sweeper usually does not have a single cliff sensor, but generally has more than three cliff sensors. Since the cost of cliff sensors also has a certain impact on the overall cost of the floor sweeper, for low-end floor sweeping robots, in order to control the product cost, cliff sensors are generally not installed. Therefore, it is necessary to simplify the structure of cliff sensors so that the production cost of cliff sensors can be reduced and they can be applied to more floor sweeping robots. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above technical problems and provide a cliff sensor for a floor sweeper. This application aims to simplify the structure of the cliff sensor of the floor sweeper.

[0004] A cliff sensor for a floor sweeper includes the main body of the floor sweeper, the left housing, the right housing, a transmitting tube, a receiving tube, and a plano lens of the cliff sensor; a first mounting position, a second mounting position, and a third mounting position are provided on the left housing or the right housing. The transmitting tube is installed in the first mounting position and is perpendicular to the ground. The receiving tube is installed in the second mounting position and is inclined relative to the ground. The plano lens is installed in the third mounting position and is parallel to the ground. An installation groove is provided on the main body of the floor sweeper, and the cliff sensor is installed in the installation groove, and the inner side walls of the installation groove clamp the left housing and the right housing, so that the transmitting tube, the receiving tube, and the plano lens are respectively clamped in the first mounting position, the second mounting position, and the third mounting position.

[0005] According to the cliff sensor of this application, the structure is simple and the assembly is convenient. During assembly, only the transmitting tube, the receiving tube, and the plano lens need to be placed in the corresponding first mounting position, second mounting position, and third mounting position. After the left housing and the right housing are covered with each other, they are placed in the installation groove. The inner side walls of the installation groove clamp the left housing and the right housing, so as to clamp the transmitting tube, the receiving tube, and the plano lens between the left housing and the right housing.

[0006] Further, the first mounting position and the second mounting position are provided on the left housing, and a reinforcing rib connecting the first mounting position and the second mounting position is further provided on the left housing. The reinforcing rib is used to enhance the structural strength of the left housing and prevent it from being deformed by the clamping of the mounting groove.

[0007] Still further, two reinforcing ribs are arranged in parallel and at intervals, and a limiting groove is formed between the two reinforcing ribs. A limiting strip is provided on the right housing, and the limiting strip extends into the limiting groove. In addition to enhancing the structural strength of the housing, the reinforcing rib is also used for the limiting installation of the right housing, preventing the left housing and the right housing from being more easily assembled, and thus being more conveniently installed into the mounting groove.

[0008] Still further, a positioning hole is provided on the left housing, and a positioning post inserted into the positioning hole is provided on the right housing. The positioning hole and the positioning post can assist in positioning when the left housing and the right housing are spliced.

[0009] Still further, the third mounting position is provided on the left housing, a positioning groove is provided on the right housing, and a positioning block is provided on the planar lens. When the planar lens is installed in the third mounting position, the positioning block extends into the positioning groove.

[0010] Still further, the transmitting tube has a first axis, the receiving tube has a second axis, and the included angle between the first axis and the second axis is 29° - 30°.

[0011] Still further, a clamping block is provided on the outer side wall of the left housing and / or the right housing, and a clamping groove is provided on the inner side wall of the mounting groove. The clamping block extends into the clamping groove.

[0012] Still further, the cliff sensor and the mounting groove are in interference fit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded view of the cliff sensor of the present invention.

[0014] Figure 2 is a perspective view of the cliff sensor of the present invention.

[0015] Figure 3 is a perspective view of the right housing of the present invention.

[0016] Figure 4 is a cross-sectional view of the cliff sensor of the present invention.

[0017] Figure 5 is a perspective view of the floor sweeper of the present invention.

[0018] Figure 6 is a perspective view of the installation position of the cliff sensor of the present invention.

[0019] Figure 7 is Figure 6 a partially enlarged view of Specific embodiments

[0020] The cliff sensor of a floor sweeper according to the present utility model will be described in conjunction with the accompanying drawings.

[0021] As Figures 1 to 7 shown, a cliff sensor 2 of a floor sweeper includes a main body 1 of the floor sweeper, a left housing 21, a right housing 22, a transmitting tube 23, a receiving tube 24, and a plano lens 25 of the cliff sensor 2. The transmitting tube 23 is used to emit an infrared signal, and the receiving tube is used to receive the infrared signal. The height of the cliff sensor 2 from the ground is determined according to the received infrared signal. A first mounting position 211, a second mounting position 212, and a third mounting position 213 are provided on the left housing 21 or the right housing 22. The transmitting tube 23 is mounted in the first mounting position 211 and is perpendicular to the ground. The receiving tube 24 is mounted in the second mounting position 212 and is inclined relative to the ground. The plano lens 25 is mounted in the third mounting position 213 and is parallel to the ground. An installation groove 11 is provided on the bottom housing of the main body 1. The cliff sensor 2 is mounted in the installation groove 11, and the inner side wall of the installation groove 11 clamps the left housing 21 and the right housing 22, so that the transmitting tube 23, the receiving tube 24, and the plano lens 25 are respectively clamped in the first mounting position 211, the second mounting position 212, and the third mounting position 213. During assembly, only the transmitting tube 23, the receiving tube 24, and the plano lens 25 need to be placed in the corresponding first mounting position 211, second mounting position 212, and third mounting position 213. After the left housing 21 and the right housing 22 are covered with each other, they are placed in the installation groove 11. The inner side wall of the installation groove 11 clamps the left housing 21 and the right housing 22, so as to clamp the transmitting tube 23, the receiving tube 24, and the plano lens 25 between the left housing 21 and the right housing 22. The cliff sensor 2 of the present application has a simple structure and is convenient for assembly, which can reduce the cost of the cliff sensor 2, so that a low-cost floor sweeper can also apply the cliff sensor 2. As Figure 1 shown, the leads of the transmitting tube 23 and the receiving tube 24 can be led out from the left housing 21 or the right housing 22 provided with the first mounting position 211 and the second mounting position 212, which is convenient for connecting to the main control board of the floor sweeper and transmitting the signal sensed by the cliff sensor 2.

[0022] As Figures 1 to 4As shown in the figure, in this embodiment, the first mounting position 211 and the second mounting position 212 are provided on the left housing 21. A reinforcing rib 214 connecting the first mounting position 211 and the second mounting position 212 is further provided on the left housing 21. The reinforcing rib 214 is used to enhance the structural strength of the left housing 21, preventing it from being deformed when clamped by the mounting groove 11. Since the reinforcing rib 214 connects the first mounting position 211 and the second mounting position 212, it can strengthen the structures of both the first mounting position 211 and the second mounting position 212 simultaneously.

[0023] As Figure 1 , Figure 3 and Figure 4 shown, two reinforcing ribs 214 are arranged in parallel and at intervals. A limiting groove 215 is formed between the two reinforcing ribs 214. A limiting strip 222 is provided on the right housing 22, and the limiting strip 222 extends into the limiting groove 215. This enables the reinforcing rib 214 to also have a limiting function. In addition to enhancing the structural strength of the housing, the reinforcing rib 214 is also used for the limiting installation of the right housing 22, preventing the left housing 21 and the right housing 22 from being more easily assembled, and thus facilitating the installation into the mounting groove 11 more conveniently.

[0024] As Figure 1 , Figure 3 and Figure 4 shown, a positioning hole 216 is provided on the left housing 21, and a positioning post 223 that is inserted into the positioning hole 216 is provided on the right housing 22. The positioning hole 216 and the positioning post 223 can assist in positioning when the left housing 21 and the right housing 22 are spliced, making the splicing of the left housing 21 and the right housing 22 more convenient.

[0025] As Figures 1 to 4 shown, in this embodiment, the third mounting position 213 is provided on the left housing 21, that is, the first mounting seat, the second mounting position 212, and the third mounting position 213 are all provided on one side housing. In this embodiment, they are all provided on the left housing 21. A positioning groove 221 is provided on the right housing 22, and a positioning block 251 is provided on the planar lens 25. When the planar lens 25 is installed in the third mounting position 213, the positioning block 251 extends into the positioning groove 221.

[0026] As Figure 4As shown, the transmitting tube 23 has a first axis, and the receiving tube 24 has a second axis. The included angle A between the first axis and the second axis is 29° - 30°, preferably 29.5°. When the included angle A is 29.5°, the infrared signal received by the receiving tube 24 is the strongest when the height of the cliff detected by the cliff sensor 2 exceeds the set height. At this time, the floor sweeper can be judged to encounter a cliff, and the floor sweeper can be controlled to retreat and adjust the forward direction. The front space of the transmitting tube 23 is the transmitting space, and the front space of the receiving tube 24 is the receiving space. The reinforcing rib 214 is V-shaped in the middle, so that the reinforcing rib 214 covers a larger area and can also prevent the reinforcing rib 214 from affecting the transmitting space and the receiving space, thereby avoiding the influence of the reinforcing rib 214 on the effect of the receiving tube 24 receiving infrared rays.

[0027] As Figures 5 to 7 shown, a clamping block 26 is provided on the outer side wall of the left housing 21 and / or the right housing 22, and a clamping groove 111 is provided on the inner side wall of the installation groove 11. The clamping block 26 extends into the clamping groove 111, so that the left housing 21 and the right housing 22 of the cliff sensor 2 are fixed in the installation groove 11.

[0028] As Figures 5 to 7 shown, the cliff sensor 2 and the installation groove 11 are in interference fit, so that the left housing 21 and the right housing 22 of the cliff sensor 2 are fixed in the installation groove 11.

[0029] According to the disclosure and teaching of the above specification, those skilled in the art of the present invention can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A cliff sensor for a sweeping machine, characterized in that: The invention comprises a main body of a sweeping machine and a left shell, a right shell, a transmitting tube, a receiving tube and a plane lens of a cliff sensor; a first mounting position, a second mounting position and a third mounting position are provided on the left shell or the right shell, the transmitting tube is installed in the first mounting position and is perpendicular to the ground, the receiving tube is installed in the second mounting position and is inclined relative to the ground, the plane lens is installed in the third mounting position and is parallel to the ground, a mounting groove is provided on the main body, the cliff sensor is installed in the mounting groove, the inner side wall of the mounting groove clamps the left shell and the right shell, so that the transmitting tube, the receiving tube and the plane lens are clamped in the first mounting position, the second mounting position and the third mounting position respectively.

2. The cliff sensor for a sweeping machine according to claim 1, characterized in that: The first mounting position and the second mounting position are arranged on the left housing, and a reinforcing rib connecting the first mounting position and the second mounting position is further arranged on the left housing.

3. The cliff sensor for a sweeping machine according to claim 2, characterized in that: The reinforcing ribs are parallel and spaced apart, and a limiting groove is formed between the two reinforcing ribs. A limiting strip is provided on the right shell body, and the limiting strip extends into the limiting groove.

4. The cliff sensor for a sweeping machine according to claim 1, characterized in that: The left shell is provided with a positioning hole, and the right shell is provided with a positioning column which is plugged into the positioning hole.

5. The cliff sensor for a sweeping machine according to claim 1, characterized in that: The third installation position is arranged on the left shell body, a positioning groove is arranged on the right shell body, a positioning block is arranged on the plane lens, and the plane lens is installed in the third installation position so that the positioning block extends into the positioning groove.

6. The cliff sensor for a sweeping machine according to claim 1, characterized in that: The transmitting tube has a first axis, the receiving tube has a second axis, and the angle between the first axis and the second axis is 29°-30°.

7. The cliff sensor for a sweeping machine according to claim 1, characterized in that: A clamping block is provided on the outer side wall of the left shell and / or the right shell, and a clamping slot is provided on the inner side wall of the installation slot, and the clamping block extends into the clamping slot.

8. The cliff sensor for a sweeping machine according to claim 1 or 7, characterized in that: The cliff sensor and the mounting groove are interference fit.

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