Edge turning device with a water protection

Abstract

This utility model relates to the field of window cleaning robot technology and discloses an edge steering device with a waterproof structure, located at the corner of the robot body. It includes a base, a swing assembly, a steering assembly, and a waterproof cover. The base is herringbone shaped, divided into an opening and an extension end. One end of the swing assembly has a connecting post installed in the opening of the extension end, while the other end faces the working surface and is fitted with the steering assembly. A column passes sequentially through the connecting post and the opening of the extension end. A receiving cavity is provided between the two ends of the swing assembly. The outer surfaces of the receiving cavity, symmetrically bent obliquely towards the center of the robot body, form the abutment surfaces. Avoidance holes are provided on both sides of the robot body near the abutment surfaces. The waterproof cover covers the receiving cavity, with its downward-bent portions inserted into the mounting cavity of the robot body and parallel to the abutment surfaces. The inner surface of the bent portions extends to abutment ends facing the abutment surfaces and passing through the avoidance holes. This device features high integration, reliable sealing, and does not affect the normal movement of the swing assembly, achieving effective waterproof protection for various electronic components.

Description

Technical Field

[0001] This utility model relates to the field of window cleaning robots, and in particular to an edge steering device with a waterproof structure. Background Technology

[0002] When window cleaning machines are operating at heights in wet conditions, the edge steering mechanism is a key component for flexible movement and obstacle avoidance. It is typically located at the corners of the machine and is constantly exposed to spray water and glass cleaning fluid. Existing designs expose electronic components such as collision switches and PCBs directly to the outside of the swing assembly, relying only on simple rubber sleeves or covers. Moisture and cleaning agents can easily seep in through the gaps, causing short circuits, corrosion, or contact jamming. This can trigger false alarms or loss of obstacle avoidance, creating safety hazards such as falling or colliding with the glass frame.

[0003] Most window cleaning machine edge steering systems do not consider waterproofing, and currently there is no good waterproofing solution. At the same time, electronic components require additional brackets and wiring space, increasing the overall thickness and number of parts, which is detrimental to the lightweight and modular design of window cleaning machines, and makes it difficult to meet the stringent reliability requirements of high-altitude operations. There is an urgent need for an edge steering device with high integration, reliable sealing, and without affecting the normal movement of the swing components, so as to simultaneously achieve effective waterproof protection for various electronic components. Utility Model Content

[0004] The purpose of this invention is to provide an edge turning device with a waterproof structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An edge steering device with a waterproof structure is located at each corner of the machine body, including a base, a swing assembly, a steering assembly, and a waterproof cover. The corner of the machine body has a first mounting cavity for the swing assembly facing the working surface and a second mounting cavity facing away from the working surface. A column is provided in the first mounting cavity. The base is herringbone shaped and divided into an opening and an extension end for the machine body corner. One end of the swing assembly has a connecting column and is installed on the opening of the extension end. The other end of the swing assembly is installed on the side facing the working surface and is located on the side of the opening. The column is sequentially inserted through the connecting column with a through hole and the opening of the extension end. A receiving cavity is provided between the two ends of the swing assembly. The outer surfaces of the receiving cavity that are symmetrically bent towards the center of the machine body are the abutment surfaces. Both sides of the first mounting cavity near the abutment surfaces have clearance holes.

[0007] The second mounting cavity has a central receiving cavity. The top surface of the waterproof cover has the same shape as the receiving cavity of the swing assembly. The bent portions at both ends are inserted into the central receiving cavity and are parallel to the abutment surface. The inner surface of the bent portions extends to an abutment end that faces the abutment surface and passes through the clearance hole.

[0008] In a preferred embodiment of the present invention, the second mounting cavity is further provided with an isolation chamber. The isolation chambers are respectively arranged on both sides of the central receiving cavity for inserting the bent portion. The isolation chambers are connected to the central receiving cavity on the side facing the bent portion. A collision switch is installed in the isolation chamber. The collision switch has a contact end that contacts the outer surface of the bent portion on the side facing the central receiving cavity.

[0009] In a preferred embodiment of the present invention, the waterproof cover has a first opening for placing and adapting electronic components, and the central receiving cavity has a second opening for the electronic components to pass through at a position below the first opening. The top surface of the electronic components is flush with the waterproof cover and forms an integral part thereon, and the bottom of the electronic components passes through the first opening and the second opening in sequence and is placed in the receiving cavity of the swing assembly.

[0010] In a preferred embodiment of the present invention, a control unit is further included, wherein the electronic components and the touch switch are all electrically connected to the control unit.

[0011] A preferred embodiment of the present invention further includes a top cover, which is disposed above the waterproof cover and covers the second mounting cavity, and the top cover has connector holes for accommodating electronic components and collision switches.

[0012] In a preferred embodiment of the present invention, the waterproof cover is further provided with a positioning hole, which is matched and connected with a positioning post opened on the top surface of the central receiving cavity. When the waterproof cover is installed in the central receiving cavity, the top surface is flush with the body. The top cover is also provided with a hole that matches the positioning post and is fixed on the waterproof cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model's waterproof structure, through the longitudinal partitioning structure of the first mounting cavity, the avoidance hole, and the second mounting cavity, forms two 90° folding labyrinthine watertight isolation zones between the swing assembly and the electronic components; combined with the dynamic shielding of the isolation chamber opening by the bending part of the waterproof cover, the liquid infiltration path is extended, meeting the waterproof requirements for high-altitude wet operations and effectively avoiding short circuits, corrosion, and contact jamming. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the edge turning device with a waterproof structure according to this utility model;

[0016] Figure 2This is a schematic diagram of the waterproof edge steering device of this utility model (hidden body);

[0017] Figure 3 This is a top view of a partial structure of the body in this utility model;

[0018] Figure 4 This is a bottom view of a partial structure of the body in this utility model;

[0019] Figure 5 This is a schematic diagram of the swing component in this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the waterproof cover in this utility model;

[0021] The reference numerals in the figure are as follows: 1-body, 11-first mounting cavity, 110-column, 111-avoidance hole, 12-second mounting cavity, 121-isolation chamber, 122-central receiving cavity, 13-positioning column, 14-second opening, 2-base, 3-swing assembly, 31-overlapping column, 310-through hole, 32-accommodating cavity, 320-abutting surface, 4-rotating assembly, 5-waterproof cover, 50-first opening, 51-bending part, 510-abutting end, 52-positioning hole, 6-collision switch, 60-touch end, 7-top cover, 8-optical coupling sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 and Figure 6As shown, an edge steering device with a waterproof structure is located at each corner of the body 1, including a base 2, a swing assembly 3, a steering assembly, and a waterproof cover 5. The corner of the body 1 has a first mounting cavity 11 for the swing assembly 3 facing the working surface and a second mounting cavity 12 facing away from the working surface. The first mounting cavity 11 is provided with a column 110. The base 2 is shaped like a herringbone and is divided into an opening and an extension end for the corner of the body 1. One end of the swing assembly 3 is provided with a connecting column 31 and is installed on the opening of the extension end. The other end is installed with the steering assembly on the side facing the working surface and is located on the side of the opening. The column 110 is sequentially inserted through the connecting column 31 with a through hole 310 and the opening of the extension end. A receiving cavity 32 is provided between the two ends of the swing assembly 3. The outer surfaces of the receiving cavity 32, which are symmetrically bent towards the center of the body 1, are abutment surfaces 320. Both sides of the first mounting cavity 11 near the abutment surface 320 are provided with clearance holes 111.

[0025] The second mounting cavity 12 has a central receiving cavity 122. The top surface of the waterproof cover 5 has the same shape as the receiving cavity 32 of the swing assembly 3. The bent portions 51 with both ends bent downward are inserted into the central receiving cavity 122 and are parallel to the abutment surface 320. The inner surface of the bent portion 51 extends to an abutment end 510 facing the abutment surface 320 and passing through the clearance hole 111.

[0026] In this embodiment, the body 1 adopts a longitudinally partitioned first mounting cavity 11 and a second mounting cavity 12. The first mounting cavity 11 faces the glass and undertakes the movement function, while the second mounting cavity 12 faces the interior and undertakes the sealing and wiring functions. The two cavities are connected only by the avoidance hole 111, forming a natural watertight isolation zone. The bending part 51 of the waterproof cover 5 is parallel to the contact surface 320 of the swing component 3, and the contact end 510 passes through the avoidance hole 111 and contacts the contact surface 320. At the same time, the bending part 51 always closes the isolation chamber 121 that is open on one side, preventing water from splashing onto the collision switch 6 placed in the isolation chamber 121 during operation. Meanwhile, the accommodating cavity 32 of the swing component 3 is encircling, isolating the built-in components from contact with water. Water needs to go through two 90° bends to enter the first mounting cavity 11, which greatly extends the seepage path.

[0027] In a specific implementation, the second mounting cavity 12 is also provided with an isolation chamber 121. The isolation chambers 121 are respectively arranged on both sides of the central receiving cavity 122 for inserting the bent part 51. The isolation chamber 121 communicates with the central receiving cavity 122 on the side facing the bent part 51. A collision switch 6 is installed in the isolation chamber 121. The collision switch 6 extends with a contact end 60 on the side facing the central receiving cavity 122 to contact the outer surface of the bent part 51.

[0028] In this embodiment, an isolation chamber 121 is provided within the second mounting cavity 12, completely concealing the collision switch 6 inside the chamber. The isolation chamber 121 and the central receiving cavity 122 are separated only by a narrow slit for the contact end 60 to extend out, achieving semi-open sensing. This allows the contact end 60 to sense the displacement of the bending part 51 while keeping liquid outside the chamber. At the same time, the collision switch 6 and the swing assembly 3 are indirectly coupled through the bending part 51 of the waterproof cover 5. The swing assembly 3 does not directly support the switch, avoiding deformation of the switch under stress.

[0029] In specific implementation, the waterproof cover 5 has a first opening 50 for placing and adapting electronic components, and the central receiving cavity 122 has a second opening 14 for passing through the electronic components located below the first opening 50. The top surface of the electronic components is flush with the waterproof cover 5 and forms an integral part, and the bottom of the electronic components is sequentially provided with the first opening 50 and the second opening 14 and placed in the receiving cavity 32 of the swing assembly 3.

[0030] In this embodiment, electronic components such as the optocoupler sensor 8 are embedded in the waterproof cover 5. The waterproof cover 5 itself serves as a "carrier," achieving an integrated design. By embedding the optocoupler sensor 8 (which simultaneously integrates infrared photodiode and encoder reading functions on the PCB) into the waterproof cover 5, the "trigger logic" of the original collision switch 6 is also digitized, while the physical collision switch 6 remains. This creates a "double insurance" effect. In other words, the optocoupler sensor 8 integrates the "signal generation" function of the collision switch 6 into the waterproof cover 5, while the mechanical collision switch 6 continues to exist as a redundant actuator. Both coexist within the same sealed and motion link, improving reliability and safety.

[0031] The top of the electronic component is flush with the top surface of the waterproof cover 5, forming a continuous appearance surface; the bottom passes through the second opening 14 and is directly inserted into the accommodating cavity 32 of the swing assembly 3, saving long-distance wiring on the circuit board.

[0032] In a specific implementation, it also includes a control unit, and the electronic components and touch switches are all electrically connected to the control unit.

[0033] In specific implementation, it also includes a top cover 7, which is located above the waterproof cover 5 and covers the second mounting cavity 12. The top cover 7 has connector holes for electronic components and the collision switch 6 to pass through. The top cover 7 is added on top of the waterproof cover 5. The top cover 7 only has connector holes for the connectors on the top of the electronic components or the collision switch 6 to pass through, and the rest of the area is fully covered, forming a three-layer stepped seal of the body 1, the waterproof cover 5 and the top cover 7.

[0034] In specific implementation, the waterproof cover 5 is also provided with a positioning hole 52, which is matched and connected with the positioning post 13 opened on the top surface of the central receiving cavity 122. When the waterproof cover 5 is installed in the central receiving cavity 122, the top surface is flush with the body 1. The top cover 7 is also provided with a hole matching the positioning post 13 and fixed on the waterproof cover 5.

[0035] In this embodiment, the waterproof cover 5, the top cover 7, and the central receiving cavity 122 are positioned by a positioning post 13, a positioning hole 52 in the waterproof cover 5, and a hole in the top cover 7, with three points coaxially positioned to ensure that the top surface of the waterproof cover 5 is zero-step difference from the outer surface of the body 1 after installation.

[0036] In this embodiment, the steering component includes a rotating ring that protrudes from the corner of the machine body 1. The rotating ring rotates in a circular motion when it touches the edge. The rotating ring has a caster wheel embedded in it that contacts the working surface. When the window cleaning machine encounters an obstacle, the rotating ring first contacts the obstacle, and the rotating ring drives the swing component 3 to swing to one side. At this time, one side abutting surface 320 of the swing component 3 touches the abutting end 510 and then touches the collision switch 6. The collision switch 6 feeds back a signal to the control unit. The control unit processes the received signal and sends a steering signal to the window cleaning machine to complete the edge steering.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An edge deflector device having a water resistant structure disposed at each corner of a body, characterized in that: The device includes a base, a swing assembly, a steering assembly, and a waterproof cover. The corners of the device face the working surface and have a first mounting cavity for the swing assembly, while the side facing away from the working surface has a second mounting cavity. A column is provided in the first mounting cavity. The base is shaped like a V-shape and consists of an opening and an extension end that adapts to the corners of the device. One end of the swing assembly has a connecting column and is installed on the opening of the extension end. The other end faces the working surface and is equipped with a steering assembly located on the side of the opening. The column passes through the connecting column with a through hole and the opening of the extension end in sequence. A receiving cavity is provided between the two ends of the swing assembly. The outer surfaces of the receiving cavity, which are symmetrically bent towards the center of the device, are abutment surfaces. Both sides of the first mounting cavity near the abutment surface have clearance holes. The second mounting cavity has a central receiving cavity. The top surface of the waterproof cover has the same shape as the receiving cavity of the swing assembly. The bent portions at both ends are inserted into the central receiving cavity and are parallel to the abutment surface. The inner surface of the bent portions extends to an abutment end that faces the abutment surface and passes through the clearance hole.

2. The edge-turning device having a waterproof structure according to claim 1, characterized by: The second mounting cavity is also provided with an isolation chamber. The isolation chambers are respectively arranged on both sides of the central receiving cavity for inserting the bent part. The isolation chamber is connected to the central receiving cavity on the side facing the bent part. A collision switch is installed in the isolation chamber. The collision switch has a contact end that contacts the outer surface of the bent part on the side facing the central receiving cavity.

3. The edge turning device with a waterproof structure according to claim 2, characterized in that: The waterproof cover has a first opening for placing and adapting electronic components. The central receiving cavity has a second opening below the first opening for the electronic components to pass through. The top surface of the electronic components is flush with the waterproof cover and forms an integral part. The bottom of the electronic components passes through the first opening and the second opening in sequence and is placed in the receiving cavity of the swing assembly.

4. The edge turning device with a waterproof structure according to claim 3, characterized in that: It also includes a control unit, and the electronic components and touch switches are all electrically connected to the control unit.

5. The edge turning device with a waterproof structure according to claim 4, characterized in that: It also includes a top cover, which is located above the waterproof cover and covers the second mounting cavity. The top cover has connector holes for electronic components and collision switches to pass through.

6. The edge turning device with a waterproof structure according to claim 5, characterized in that: The waterproof cover is also provided with a positioning hole, which is matched and connected with a positioning post on the top surface of the central receiving cavity. When the waterproof cover is installed in the central receiving cavity, the top surface is flush with the body. The top cover is also provided with a hole that matches the positioning post and is fixed on the waterproof cover.

Images