Vacuum suction control mechanism of window-cleaning robot base station

Abstract

This invention discloses a vacuum adsorption control mechanism for a window cleaning robot base station, including a mounting base and a suction cup assembly, an air passage pipe, a sealing mechanism, a drive mechanism, and a transmission component mounted thereon. The outlet end of the air passage pipe is connected to the suction cup assembly, and the suction cup assembly has a first interface portion on its body. The transmission component rotates under the drive mechanism, and during this rotation, it causes the sealing mechanism to shift, thereby blocking or opening the inlet end of the air passage pipe, and thus switching the vacuum state of the suction cup assembly. This invention converts rotational power into horizontal or lateral reciprocating motion, significantly reducing the assembly space of the mechanism in the vertical direction, which helps to lower the center of gravity of the base station and improve stability. Furthermore, the mechanism does not require continuous power after reaching the preset position, effectively avoiding the impact of continuous heat accumulation on system stability and extending the service life of electronic components.

Description

[Technical Field] This invention relates to the field of window cleaning robot technology, and in particular to a vacuum adsorption control mechanism for a window cleaning robot base station. [Background Technology] With the rapid development of smart home appliance technology, window cleaning robots have been widely used in glass cleaning operations in high-rise buildings. In the entire operating system, the base station not only undertakes the functions of power supply and cable management, but also serves as a key safety anchor point, ensuring that the robot receives effective stress cushioning in the event of an accidental fall through physical connection.

[0001] To achieve a stable connection between the base station and indoor horizontal surfaces (such as ceramic tiles or wooden floors), the current industry standard solution is to use negative pressure adsorption technology. This involves using a negative pressure generating device integrated within the base station to expel air between the suction cup and the ground, using atmospheric pressure to anchor the base station. However, in practical engineering applications, existing negative pressure control structures have the following problems: Traditional negative pressure control often uses solenoid valves or vertical lift-type sealing structures. Solenoid valves consume a lot of power and generate significant heat when maintaining the open state, which can easily affect the lifespan of electronic components in a compact space; while vertical lift structures often require a large vertical assembly space, resulting in an excessively thick and heavy base station bottom, which is not conducive to the flat design of the entire device. [Summary of the Invention] The purpose of this invention is to provide a vacuum adsorption control mechanism for a window cleaning robot base station, which aims to solve the problems of high heat generation, high power consumption, and limited assembly space caused by the use of the corresponding structure in the existing window cleaning robot base station negative pressure control mechanism.

[0002] This invention is achieved through the following technical solutions: A vacuum adsorption control mechanism for a window cleaning robot base station includes: Mounting base; Suction cup assembly, used for adsorption and fixation to external structural surfaces; An air passage is provided on the mounting base, and the outlet end of the air passage is connected to the suction cup assembly; A sealing mechanism for sealing or opening the inlet end of the gas pipeline; The drive mechanism is mounted on the mounting base; The transmission component rotates under the drive mechanism. The suction cup assembly includes a suction cup body, on which a first interface portion is provided that communicates with the outlet end of the air passage pipe; The mounting base has a second through hole for the gas pipeline to pass through, and a flange is provided on the periphery of the outlet end of the gas pipeline. A plurality of connecting posts that are assembled with the flange are evenly provided around the periphery of the second through hole at the bottom of the mounting base. The transmission component is configured to drive the sealing mechanism to move during rotation, thereby blocking or opening the air passage and switching the vacuum state of the suction cup assembly.

[0003] As described above, the vacuum adsorption control mechanism of the window cleaning robot base station has a mounting bracket on the mounting base. The mounting bracket includes a drive mounting position for mounting the drive mechanism and a sealing mounting position for mounting the sealing mechanism. A second interface portion communicating with the air passage pipe is opened on one side of the sealing mounting position.

[0004] The vacuum adsorption control mechanism of the window cleaning robot base station as described above includes a drive motor fixedly connected to the drive mounting position, and the output shaft of the drive motor is connected to the transmission component.

[0005] In the vacuum adsorption control mechanism of the window cleaning robot base station described above, the drive motor is a stepper motor and the transmission component is an eccentric wheel.

[0006] As described above, the vacuum adsorption control mechanism of the window cleaning robot base station includes a movable groove in which a first through hole is provided and communicates with the second interface. The sealing mechanism includes an axially displaceable movable rod disposed in the movable groove. The movable rod is driven by the transmission component. One end of the movable rod located in the movable groove is connected to a sealing piston for sealing or opening the inlet end of the air passage. A pressure balance hole is also provided on the groove wall of the movable groove. When the sealing piston is in the open position, the inlet end of the air passage is connected to the outside air through the pressure balance hole.

[0007] As described above, the vacuum adsorption control mechanism of the window cleaning robot base station has a reset mounting groove on at least one side of the movable groove, an elastic reset member in the reset mounting groove, and an abutment part at at least one end of the movable rod that can be displaced axially along the reset mounting groove and cooperates with the elastic reset member.

[0008] As described above, the vacuum adsorption control mechanism of the window cleaning robot base station also includes a limiting post in the reset mounting groove, and the abutting part is located between the limiting post and the elastic reset member.

[0009] In the vacuum adsorption control mechanism of the window cleaning robot base station described above, the elastic reset component is a reset spring, and the bottom end wall of the reset mounting groove is provided with a mating part that matches one end of the reset spring.

[0010] The vacuum adsorption control mechanism of the window cleaning robot base station as described above also includes a signal detection component, which is mounted on the mounting bracket and includes a trigger switch. A trigger part is provided on the movable rod. During the process of the transmission component driving the movable rod to move, the movable rod drives the trigger part to move synchronously, so that the trigger part triggers the trigger switch when the sealing mechanism reaches the preset position, thereby generating a detection signal for feedback of the real-time position status of the movable rod.

[0011] As described above, the vacuum adsorption control mechanism of the window cleaning robot base station has a guide groove on the sealed mounting position and a guide part on the movable rod that matches the guide groove.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This invention achieves precise control of the air path through mechanical transmission, significantly optimizing the space utilization at the bottom of the base station. Compared to traditional bulky vertical lifting sealing structures with strict requirements on vertical height, this solution utilizes transmission components to convert rotational power into horizontal or lateral reciprocating displacement, greatly reducing the assembly space of the vacuum adsorption mechanism in the vertical direction. This flattened layout significantly improves the stability of the base station after its center of gravity is lowered.

[0013] 2. Unlike solenoid valves, which require continuous power and generate significant heat when maintaining an open state, the mechanical structure of the drive mechanism and transmission components of this invention can stop operating after reaching a preset blocking or opening position. This effectively extends the service life of electronic components in a compact space and avoids the impact of heat accumulation on system stability.

[0014] 3. This invention constructs a stable mechanical support platform for the air system by creating a second through hole on the mounting base to mate with the flange 31 at the outlet end of the air pipeline, and combining it with multiple connecting posts evenly distributed around the perimeter. This design ensures that the clamping force of the flange on the suction cup body can be evenly distributed throughout the circumference, effectively eliminating stress deformation or air path misalignment that may be caused by uneven local stress. Under the technical condition of not requiring active air extraction from an external negative pressure pump and relying solely on the self-weight of the base station for air exhaust, this extremely high consistent sealing pressure can significantly enhance the ability to maintain the vacuum inside the suction cup, preventing anchoring force failure due to minor air leakage, and providing a solid physical safety guarantee for high-altitude operations. [Attached Image Description] To more clearly illustrate the technical solutions in the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a three-dimensional schematic diagram of this embodiment; Figure 2 This is a top view of this embodiment; Figure 3 This is an exploded view of this embodiment; Figure 4 for Figure 2 sectional view along line AA; Figure 5 This is a schematic diagram showing the connection between the mounting bracket and the sealing mechanism in this embodiment; Figure 6 This is a three-dimensional schematic diagram of the mounting bracket in this embodiment. Figure 1 ; Figure 7 for Figure 6 Cross-sectional view along line BB; Figure 8 This is a three-dimensional schematic diagram of the sealing mechanism in this embodiment. Figure 1 ; Figure 9 This is a three-dimensional schematic diagram of the sealing mechanism in this embodiment. Figure 2 ; Figure 10 This is an exploded view of the sealing mechanism in this embodiment; Figure 11 This is a three-dimensional schematic diagram of the mounting base in this embodiment. Figure 1 ; Figure 12 This is a three-dimensional schematic diagram of the mounting base in this embodiment. Figure 2 ; Figure 13 This is an exploded view of the assembly of this embodiment and a possible window cleaning robot base station.

Detailed Implementation Methods

[0016] In the field of modern high-altitude cleaning, the window-cleaning robot base station is a core auxiliary device in the entire cleaning system. It not only integrates functions such as cable management, power supply, and system control, but also bears the crucial responsibility of ensuring physical safety. When the window-cleaning robot is operating at heights outside windows, the base station is typically installed on the indoor ground and connected to the robot via a braided cable that combines power transmission and safety tension. In this case, the base station acts as a stable ground anchor point, providing sufficient tensile strength in the event of an accidental fall to ensure the equipment's safety.

[0017] This embodiment provides a vacuum adsorption control mechanism for a window cleaning robot base station, which is mainly used to achieve reliable anchoring between the base station body and external structural surfaces such as the ground. The mechanism mainly includes a mounting base 1, a suction cup assembly 2, an air passage duct 3, a sealing mechanism 4, a drive mechanism 5, and a transmission component 6.

[0018] like Figures 1 to 13 As shown, the mounting base 1 constitutes the physical support frame of the entire mechanism. It can be made of engineering plastics with good mechanical strength and dimensional stability, such as polycarbonate, acrylonitrile butadiene styrene copolymer, or metal, to support the internal functional components and achieve a reliable connection with the base station body. The suction cup assembly 2 is located at the bottom of the mounting base 1. It is configured to cooperate with the base station's own weight to expel air and form a sealed cavity, thereby achieving adsorption and fixation to external structural surfaces such as floor tiles, wooden floors, or glass. More specifically, the suction cup assembly 2 may include a rubber or silicone skirt with a certain degree of elasticity, which has good flexibility and deformation capability, and can tightly adhere to the external structural surface and expel internal air when under pressure.

[0019] Air duct 3, serving as the physical path for air exhaust or depressurization, is mounted on the mounting base 1. The outlet end of air duct 3 is directly connected to the cavity inside the suction cup assembly 2, thus providing a channel for exhaust or replenishment of air for the suction cup assembly 2. The sealing mechanism 4 is located near the inlet end of air duct 3, acting as a controlled valve. By switching its position relative to the inlet of air duct 3, it enables the sealing or opening of air duct 3.

[0020] The drive mechanism 5, serving as the power source for the entire control mechanism, is mounted on the mounting base 1. The drive mechanism 5 can take various forms, such as various micro DC motors, brushless motors, or stepper motors, to provide stable and controlled mechanical output. The transmission component 6 is linked to the output shaft of the drive mechanism 5 and is driven by the drive mechanism 5 to rotate. The transmission component 6 is configured to mechanically engage with the sealing mechanism 4 during rotation, thereby driving the sealing mechanism 4 to produce displacement, precisely sealing or opening the air passage 3.

[0021] Through the coordinated operation of the aforementioned basic structure, the working logic of this mechanism is as follows: When the base station needs to establish vacuum adsorption, the user places the base station on the external structural surface. The base station body, through its own weight, compresses the suction cup assembly 2, which has flexible deformation capabilities, causing the internal air to be discharged through the open air passage 3. Subsequently, the drive mechanism 5 starts and drives the transmission component 6 to rotate, converting the rotational power into mechanical force to drive the sealing mechanism 4 to move. This causes the sealing mechanism 4 to tightly seal the inlet end of the air passage 3. At this time, a closed low-pressure environment is formed inside the suction cup assembly 2. The rebound tendency of the suction cup material, combined with the external atmospheric pressure, achieves vacuum adsorption. When it is necessary to release the base station, the drive mechanism 5 works again, causing the transmission component 6 to rotate in the opposite direction or continue to rotate to a specific angle, thereby driving the sealing mechanism 4 away from the inlet end of the air passage 3. Outside air rushes into the suction cup assembly 2 through the air passage 3, switching the vacuum state of the suction cup assembly 2, thus breaking the vacuum and releasing the adsorption. This movement control method, which is converted from rotational drive, not only obtains a large sealing and compressing force through the mechanical transmission ratio, but also greatly reduces the space occupied by the entire mechanism inside the base station.

[0022] Furthermore, as a preferred embodiment and not a limitation, to ensure that the negative pressure can act stably and efficiently on the external structural surface, please refer to [the relevant documentation / reference]. Figures 1 to 3 The suction cup assembly 2 includes a suction cup body 21, which can be made of an elastic material with high wear resistance, excellent flexibility, and low compression set, such as silicone or thermoplastic elastomer. The suction cup body 21 has a first interface portion 22 that communicates with the outlet end of the air passage 3. In actual assembly, the first interface portion 22 can be designed as a pagoda-shaped structure, a threaded interface, or a quick-connect fitting to facilitate an airtight connection with the air passage 3. Optionally, to improve the reliability of the connection, a clamp or sealing ring can be additionally fitted at the connection between the first interface portion 22 and the air passage 3 to prevent air leakage under long-term high-frequency vibration or vacuum negative pressure fluctuations. The configuration of the suction cup body 21 is not limited to a circle; it can also be designed as a rectangle or ellipse according to the outer contour of the base station bottom to obtain the maximum effective adsorption area within a limited installation space.

[0023] Furthermore, as a preferred embodiment and not a limitation, please refer to [the document for details]. Figure 3 , Figure 5 , Figure 11 , Figure 12The mounting base 1 has a second through hole 11 through which the gas supply pipe 3 passes. The diameter of the second through hole 11 is slightly larger than the outer diameter of the gas supply pipe 3 to facilitate the smooth passage of the pipe during assembly. A flange 31 is provided on the periphery of the outlet end of the gas supply pipe 3. The flange 31 serves as the force-bearing surface for mechanical connection and can be integrally formed with the gas supply pipe 3 by injection molding, or fixed to the end of the pipe by means of metal parts such as ultrasonic welding or bonding.

[0024] Correspondingly, a plurality of connecting posts 12, which are assembled with the flange 31, are evenly provided around the bottom of the mounting base 1 surrounding the second through hole 11. The number of connecting posts 12 can be set to three, four, six or more, depending on the sealing load requirements, and they are evenly distributed in a circumferential array. This evenly distributed design ensures that when the fasteners are tightened, the clamping force on the flange 31 can be evenly distributed on the force-bearing surface of the suction cup assembly 2, thereby avoiding air passage deformation or sealing failure due to uneven local force.

[0025] As an alternative implementation, the flange 31 and the connecting post 12 can also employ a snap-fit ​​connection structure or a rotation locking structure. For example, a barbed latch can be provided on the connecting post 12, allowing for quick locking by vertically pressing the flange 31 in or rotating it at a certain angle. This design can further simplify the base station's production and assembly process and improve production efficiency. Through the multi-point stable support between the mounting base 1, the gas pipeline 3, and the flange 31, the morphological stability of the gas pipeline 3 is ensured when subjected to internal negative pressure suction.

[0026] Furthermore, as a preferred embodiment and not a limitation, to improve the integration and assembly accuracy of the internal components, a mounting bracket 7 is provided on the mounting base 1. For details, please refer to [link to relevant documentation]. Figures 5 to 7 The mounting bracket 7 includes a drive mounting position 71 for mounting the drive mechanism 5 and a sealing mounting position 72 for mounting the sealing mechanism 4. The drive mounting position 71 and the sealing mounting position 72 are arranged within the bracket space according to a preset geometric relationship, such as a side-by-side or vertical layout, to facilitate the transmission of mechanical force. One end of the sealing mounting position 72 has a second interface 73 that communicates with the air passage 3. This second interface 73 can be a pre-fabricated port or connector structure on the bracket, ensuring that the air passage can be smoothly introduced into the sealing execution area. By integrating the drive and sealing functional areas onto the same mounting bracket 7, the cumulative assembly error between the motor and the valve port can be effectively reduced, thereby improving the sealing reliability and response consistency of the mechanism.

[0027] Furthermore, as a preferred embodiment and not a limitation, the drive mechanism 5 specifically includes a drive motor 51 fixedly connected to the drive mounting position 71. The drive motor 51 can be fixed to the drive mounting position 71 using standard fasteners such as screws, or it can be fixed using interference fit or snap-fit ​​structures. The output shaft of the drive motor 51 is connected to a transmission component 6. Specifically, a coupling can be used for connection, or the transmission component 6 can be directly sleeved and fixed to the output shaft using a D-shaped flat or keyway structure to ensure efficient torque transmission. With the drive motor 51 as the power core, the system can achieve precise control of the rotational position of the transmission component 6, thereby driving the transmission sealing mechanism 4 to perform precise air passage sealing or opening actions.

[0028] Furthermore, as a preferred embodiment rather than a limitation, in order to achieve precise quantitative control of the sealing action, the drive motor 51 is specifically a stepper motor, while the transmission component 6 is a corresponding eccentric wheel.

[0029] Stepper motors can convert electrical pulse signals into angular displacement. The base station's main control system can precisely control the rotation angle of the output shaft by controlling the number of pulses, thereby achieving a precise digital definition of the position of the eccentric wheel 6. The transmission component 6 adopts an eccentric wheel structure. The outer circumference of the eccentric wheel 6 contacts the force-bearing end of the sealing mechanism 4. When the stepper motor drives it to rotate, due to the eccentricity between its rotation center and geometric center, the radial distance from the outer circumference surface of the eccentric wheel 6 to the rotation axis changes continuously with the rotation angle. This change smoothly converts the motor's rotational torque into a thrust along the axial direction of the sealing mounting position 72. When the eccentric wheel 6 rotates to its far rest position, i.e., the maximum eccentricity, it can generate a huge compressive force, ensuring that the sealing piston 42 can overcome pressure fluctuations inside the air passage to achieve a tight seal. Furthermore, the eccentric wheel structure has a natural physical self-locking tendency. After the stepper motor stops rotating, due to the friction between the contact surfaces of the eccentric wheel 6 and the sealing mechanism 4, as well as the geometric configuration of the mechanism, the mechanism can maintain its sealed position without easily retracting. As an alternative, those skilled in the art may also choose a servo motor instead of a stepper motor, or a common cam with a specific lift curve instead of the eccentric wheel 6, depending on cost and space requirements.

[0030] Furthermore, as a preferred embodiment and not a limitation, please refer to [link / reference]. Figures 6 to 7 The sealing mounting position 72 includes a movable groove 721, which serves as a physical channel for the reciprocating motion of the sealing mechanism 4. A first through hole 722 is provided in the movable groove 721, which communicates with the aforementioned second interface portion 73, thereby establishing an air passage from the inside of the movable groove 721 to the air passage 3.

[0031] Furthermore, as a preferred embodiment and not a limitation, please refer to [the document for details]. Figures 9 to 10 The sealing mechanism 4 includes a movable rod 41 disposed within a movable groove 721. The movable rod 41 is configured to reciprocate axially along the central axis of the movable groove 721. One end of the movable rod 41 contacts the transmission member 6 and is subjected to force, generating a thrust pointing towards the first through hole 722 under the eccentric compression of the transmission member 6. The end of the movable rod 41 located within the movable groove 721 is connected to a sealing piston 42 for sealing or opening the inlet end of the air passage 3. To improve the smoothness of power conversion and reduce mechanical losses, the end of the movable rod 41 in contact with the transmission member 6 is provided with a guide slope 414, which can slide in contact with the outer circumferential contour of the transmission member 6, i.e., the eccentric wheel.

[0032] The sealing piston 42 can be made of rubber, silicone, or thermoplastic elastomer material with good elastic deformation capability. Its outer diameter forms a slight interference fit or a precision clearance fit with the inner diameter of the movable groove 721. The sealing piston 42 and the movable rod 41 can be fixed by interference fit, threaded connection, or integral injection molding to ensure that they do not loosen relative to each other during high-speed reciprocating motion. When the transmission component 6 rotates to a specific phase and pushes the movable rod 41, the sealing piston 42 moves to the sealing position in the movable groove 721 and tightly presses against the first through hole 722, thereby completely isolating the inlet end of the air passage 3 and enabling the suction cup assembly 2 to maintain a stable vacuum negative pressure environment.

[0033] Furthermore, as a preferred embodiment and not a limitation, to address the issue of pressure lag during vacuum release, a pressure balancing hole 723 is also provided on the wall of the movable groove 721. Please refer to [link to relevant documentation]. Figures 6 to 7 The pressure balance hole 723 is arranged on the reciprocating stroke path of the sealing piston 42. When the drive motor 51 reverses and drives the transmission component 6 to retract, and the movable rod 41 drives the sealing piston 42 to move to the open position, the sealing piston 42 will avoid the first through hole 722. At this time, the inlet end of the air passage 3 is directly connected to the outside air through the pressure balance hole 723.

[0034] The pressure balancing hole provides an air supply channel for instantaneous depressurization. Since the suction cup assembly 2 is under high negative pressure during adsorption, relying solely on natural air leakage would result in a very slow desorption process. However, through the pressure balancing hole 723, outside air can quickly flow into the air passage 3 and fill the suction cup, instantly balancing the internal and external pressures and ensuring the base station can be lifted effortlessly by the user. Alternatively, the pressure balancing hole 723 can be designed as a long, narrow exhaust channel or multiple arrayed micropores to adjust the ventilation rate according to the required depressurization speed. Furthermore, the side surface of the sealing piston 42 can be designed with annular sealing ribs or a V-shaped sealing lip to further improve airtightness during sealing while reducing friction.

[0035] Furthermore, as a preferred embodiment and not a limitation, to ensure that the sealing mechanism 4 can reliably return to the preset initial position after the driving pressure is removed, thereby realizing automatic switching of the air path and vacuum release, at least one side of the movable groove 721 is also provided with a reset mounting groove 724. An elastic reset member 8 is provided within the reset mounting groove 724. Correspondingly, at least one end of the movable rod 41 is provided with an abutment portion 411, which can move synchronously with the movable rod 41 and can be displaced along the axial direction of the reset mounting groove 724.

[0036] In this embodiment, when the transmission member 6 rotates to the sealing phase and pushes the movable rod 41, the abutment portion 411 simultaneously compresses the elastic reset member 8, causing it to accumulate elastic potential energy. When the transmission member 6 rotates to the release phase, i.e., when the pushing pressure on the movable rod 41 is withdrawn, the elastic reset member 8 releases its potential energy and acts on the abutment portion 411, driving the movable rod 41 to pop out to one side. This design provides a passive safety protection logic for the vacuum adsorption control mechanism of this embodiment. Even if the drive mechanism 5 experiences a power failure, as long as the transmission member 6 is in a resettable state, the elastic reset member 8 can ensure that the gas pipeline 3 can be restored to a state of being connected to the atmosphere.

[0037] Furthermore, as a preferred embodiment and not a limitation, in order to precisely control the reset stroke of the movable rod 41 and prevent parts from falling off, a limiting post 9 is also provided in the reset mounting groove 724. The abutment part 411 is arranged between the limiting post 9 and the elastic reset member 8. The limiting post 9 sets the physical boundary for the spring-opening action of the elastic reset member 8. When the movable rod 41 rebounds under the elastic drive, the abutment part 411 will eventually hit and abut against the limiting post 9, thereby stopping the movable rod 41 and ensuring that it will not detach from the mounting bracket 7 due to excessive impact.

[0038] Specifically, the limiting post 9 can be integrally molded with the mounting bracket 7 using a mold injection molding process. Its cross-section can be designed as circular, square, or I-shaped to enhance its impact resistance. If necessary, the limiting post 9 can also be made of stainless steel or other metal pins pressed into the pre-set holes in the mounting bracket 7 to cope with mechanical impact wear over longer periods.

[0039] Furthermore, as a preferred embodiment and not a limitation, the elastic reset member 8 is specifically selected as a reset spring. This reset spring can be made of spring steel, stainless steel wire, or piano wire with excellent fatigue life. To ensure the axial stability of the reset spring during reciprocating compression motion and to prevent lateral instability or bending, the bottom end wall of the reset mounting groove 724 is provided with a mating portion 725 that matches one end of the reset spring.

[0040] The mating part 725 can be a cross-shaped protrusion, a cylindrical protrusion, or an annular countersunk hole protruding from the bottom of the groove, and its outer or inner diameter is adapted to the diameter of the return spring. Through the radial constraint of the mating part 725, one end of the return spring is firmly fixed to the bottom of the return mounting groove 724, ensuring that the spring can always generate force along the preset central axis during the frequent compression of the abutment part 411, effectively avoiding mechanical jamming caused by spring misalignment.

[0041] Furthermore, as a preferred embodiment and not a limitation, in order to achieve closed-loop control and status feedback during the operation of the mechanism and ensure the accuracy and safety of the base station sealing switching action, the vacuum adsorption control mechanism of this embodiment also includes a signal detection component 10. The signal detection component 10 is mounted on the mounting bracket 7. The signal detection component 10 specifically includes a trigger switch 101, which can be a micro switch, limit switch, or photoelectric sensor, or other detection element with signal conversion function. Correspondingly, the movable rod 41 is provided with a trigger part 412, which can be a protrusion, rib, lever, or magnetic component that protrudes radially from the surface of the movable rod 41.

[0042] During the movement of the movable rod 41 along the movable groove 721 driven by the transmission component 6, the movable rod 41 drives the trigger part 412 to move synchronously. When the sealing mechanism 4 is pushed to a preset position under the action of the driving force, for example, when the movable rod 41 pushes the sealing piston 42 to completely cover and press the sealing position of the first through hole 722, or when the movable rod 41 returns to the open position where the air pressure balance hole 723 is fully exposed under the action of the elastic reset component 8, the trigger part 412 will move to the corresponding position and trigger the trigger switch 101. Through the physical contact or inductive cooperation between the trigger part 412 and the trigger switch 101, the trigger switch 101 generates an electrical signal, which is transmitted to the main control unit of the base station in real time as a position feedback signal, thereby generating a detection signal for feedback of the real-time position status of the movable rod 41.

[0043] The signal detection component 10 solves the problem of lack of visibility in the mechanical transmission process, realizing electronic monitoring of the vacuum switching process. The main control unit of the base station can accurately determine whether the sealing mechanism 4 has been executed in place based on the feedback signal, thereby stopping the operation of the drive motor 51 in time after detecting the sealing signal, preventing the motor from stalling for a long time and causing heat loss. It also provides a logical basis for subsequent confirmation that the base station is in a stable anchoring state and allows the window cleaning robot to start operation. As an optional alternative, the trigger switch 101 can also use a non-contact Hall sensor, which can achieve induction detection by pre-embedding a permanent magnet in the trigger part 412; or it can use a photoelectric pair structure, which uses the trigger part 412 to block the light path to generate a pulse signal.

[0044] Furthermore, as a preferred embodiment and not a limitation, considering that when the transmission component 6 uses an eccentric wheel structure to push the inclined surface of the guide wire at the end of the movable rod 41, in addition to generating axial sealing pressure, the contact point position will inevitably generate radial biasing force or overturning torque pointing towards the movable rod 41 due to the dynamic change of the rotation angle. To ensure that the sealing mechanism 4 can maintain a high degree of axial stability during reciprocating motion and to prevent jamming or deviation of the movement trajectory due to uneven force, a guide groove 726 is provided on the sealing mounting position 72. Correspondingly, the movable rod 41 is provided with a guide portion 413 that matches the guide groove 726.

[0045] The guide groove 726 and the guide portion 413 form a high-precision sliding pair. The guide portion 413 can be manifested as a guide rib, guide protrusion, or slider structure protruding from the surface of the movable rod 41, while the guide groove 726 is a slide rail or limiting groove formed in the inner wall of the sealed mounting position 72. This guiding structure not only solves the problem of smoothness in mechanical transmission in the whole mechanism, but also brings many technical benefits. First, the physical limiting effect of the guide portion 413 in the guide groove 726 can completely eliminate the circumferential rotation of the movable rod 41 during the movement. This is crucial for the aforementioned signal detection component, because only by locking the circumferential angle of the movable rod 41 can it be ensured that the trigger portion 412 on it is always aligned with the trigger switch 101 on the mounting bracket 7, preventing the loss of feedback signal caused by the trigger portion 412 deviating from the detection path due to the disordered rotation of the movable rod 41.

[0046] Secondly, the highly reliable guiding mechanism ensures that the sealing plane of the sealing piston 42 remains parallel and coplanar with the plane containing the first through hole 722 during each sealing action. This effectively avoids uneven wear or incomplete sealing caused by tilting of the sealing piston 42, significantly improving the sealing reliability of the base station as a safety anchor point. Besides the grooved guide described in this embodiment, as an alternative, those skilled in the art can also use a double guide rod structure, a dovetail groove structure, or multiple symmetrically distributed guide protrusions on the movable rod 41. These solutions can all achieve similar motion guiding functions.

[0047] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A vacuum adsorption control mechanism for a window cleaning robot base station, characterized in that, include: Mounting base (1); The suction cup assembly (2) is used to adhere and fix the external structural surface; An air passage (3) is provided on the mounting base (1), and the outlet end of the air passage (3) is connected to the suction cup assembly (2); A sealing mechanism (4) is used to block or open the inlet end of the gas pipeline (3); The drive mechanism (5) is mounted on the mounting base (1); The transmission component (6) is driven to rotate by the drive mechanism (5); The suction cup assembly (2) includes a suction cup body (21), and the suction cup body (21) is provided with a first interface (22) that communicates with the outlet end of the air passage (3). The mounting base (1) has a second through hole (11) for the gas pipeline (3) to pass through. The outlet end of the gas pipeline (3) is provided with a flange (31). The bottom of the mounting base (1) is provided with a plurality of connecting posts (12) that are assembled with the flange (31) evenly around the second through hole (11). The transmission component (6) is configured to drive the sealing mechanism (4) to move during rotation in order to block or open the air passage (3), thereby switching the vacuum state of the suction cup assembly (2).

2. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 1, characterized in that, The mounting base (1) is provided with a mounting bracket (7), which includes a drive mounting position (71) for mounting the drive mechanism (5) and a sealing mounting position (72) for mounting the sealing mechanism (4). A second interface (73) communicating with the gas pipeline (3) is provided on one side of the sealing mounting position (72).

3. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 2, characterized in that, The drive mechanism (5) includes a drive motor (51) fixedly connected to the drive mounting position (71), and the output shaft of the drive motor (51) is connected to the transmission component (6).

4. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 3, characterized in that, The drive motor (51) is a stepper motor, and the transmission component (6) is an eccentric wheel.

5. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 2, characterized in that, The sealing mounting position (72) includes a movable groove (721), in which a first through hole (722) is provided and communicates with the second interface (73). The sealing mechanism (4) includes an axially displaceable movable rod (41) provided in the movable groove (721). The movable rod (41) is driven by the transmission member (6). One end of the movable rod (41) located in the movable groove (721) is connected to a sealing piston (42) for sealing or opening the inlet end of the air passage (3). A pressure balance hole (723) is also provided on the groove wall of the movable groove (721). When the sealing piston (42) is in the open position, the inlet end of the air passage (3) is connected to the outside air through the pressure balance hole (723).

6. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 5, characterized in that, At least one side of the movable groove (721) is also provided with a reset mounting groove (724), and an elastic reset member (8) is provided in the reset mounting groove (724). At least one end of the movable rod (41) is provided with an abutment part (411) that can be axially displaced along the reset mounting groove (724) and cooperates with the elastic reset member (8).

7. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 6, characterized in that, The reset mounting groove (724) is also provided with a limiting post (9), and the abutment part (411) is located between the limiting post (9) and the elastic reset member (8).

8. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 6, characterized in that, The elastic reset component (8) is a reset spring, and the bottom end wall of the reset mounting groove (724) is provided with a mating part (725) that matches one end of the reset spring.

9. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 5, characterized in that, It also includes a signal detection component (10), which is disposed on the mounting bracket (7). The signal detection component (10) includes a trigger switch (101), and a trigger part (412) is provided on the movable rod (41). During the process of the transmission component (6) driving the movable rod (41) to move, the movable rod (41) drives the trigger part (412) to move synchronously, so that the trigger part (412) triggers the trigger switch (101) when the sealing mechanism (4) reaches the preset position, thereby generating a detection signal for feedback of the real-time position status of the movable rod (41).

10. The vacuum adsorption control mechanism of the window cleaning robot base station according to claim 9, characterized in that, The sealing mounting position (72) is provided with a guide groove (726), and the movable rod (41) is provided with a guide part (413) that matches the guide groove (726).

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