Anti-falling winder, base station and surface cleaning system

Abstract

The utility model relates to the technical field of safety, and discloses an anti-falling winder, a base station and a surface cleaning system. According to the anti-falling winder, a support is circular; a stop groove is formed in the bracket; the movable disc assembly is rotationally connected with the bracket; the movable disc assembly is used for winding and unwinding the slender safety traction element; the sliding block is slidably arranged on the movable disc assembly. Wherein the sliding block is used for enabling a first part of the sliding block to slide out of the edge of the movable disc assembly under the action of centrifugal force when the safe traction element pulls the movable disc assembly to unwind; the stop groove is used for clamping the sliding block so as to lock the movable disc assembly to unwind. According to the technical scheme, the stop groove of the support and the sliding block on the movable disc assembly are cooperatively matched, the movable disc assembly timely and rapidly triggers the sliding block to be locked in the stop groove based on centrifugal force, then the movable disc assembly is locked, the high-altitude falling accident of equipment, connected through a safety traction element, on the movable disc assembly is avoided, and the safety of the equipment is improved. And the safety and the reliability of the equipment in high-altitude operation are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety, specifically relates to a kind of anti-falling reel, base station and surface cleaning system. BACKGROUND

[0002] Window-cleaning robot, also known as glass-cleaning robot, automatic window-cleaning robot, intelligent window-cleaning robot, intelligent window-cleaning device, etc., is a kind of surface cleaning device, which belongs to intelligent household appliance. Window-cleaning robot mainly performs cleaning operation on facade. When working, window-cleaning robot is adsorbed on the surface of the cleaning object by negative pressure between window-cleaning robot and the cleaning surface. In order to prevent window-cleaning robot from falling from the cleaning surface when working abnormally, a safety rope is usually provided on window-cleaning robot. The safety rope is tied to an object such as a railing, which has a firm connection point with the wall or the ground. When window-cleaning robot falls, the safety rope will pull window-cleaning robot to avoid falling and breaking or hitting people or objects, causing casualties and property losses. This safety rope needs to be manually arranged and stored, which is not ideal in use experience.

[0003] Currently, there are window-cleaning robots with base stations on the market. Window-cleaning robot is connected with base station through safety rope. When working, window-cleaning robot can pull safety rope out of base station. When not in use, safety rope can be retracted into base station by rotating the reel of base station. In order to avoid sudden falling of window-cleaning robot, the reel is usually provided with an anti-falling structure. In the prior art, the anti-falling structure of the reel triggers the anti-falling function not timely enough, which has safety hazards. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of anti-falling reel, base station and surface cleaning system to solve the above technical problems that anti-falling structure triggers not timely enough in prior art.

[0005] According to the first aspect of the utility model, an anti-falling reel is provided, comprising:

[0006] a bracket is circular;The bracket is provided with a stop groove;And

[0007] a movable disc assembly is rotatably connected to the bracket;The movable disc assembly is used for the winding and unwinding of the elongated safety pulling element;And

[0008] a sliding block is slidably arranged on the movable disc assembly;

[0009] Wherein, when the sliding block pulls the movable disc assembly to unwind, the first part of the sliding block slides out of the edge of the movable disc assembly under the action of centrifugal force;The stop groove is used for clamping the sliding block to lock the unwinding of the movable disc assembly.

[0010] Preferably, a sliding groove is arranged on the movable disc assembly, a first end of the sliding groove penetrating the edge of the movable disc assembly; and a matching sliding block is arranged in the sliding groove.

[0011] Preferably, a plurality of convex ribs are uniformly spaced on the surface of the sliding block, the convex ribs being arranged along the sliding direction of the sliding block.

[0012] Preferably, a reset mechanism is arranged in the sliding groove, the reset mechanism being used to drive the first part of the sliding block sliding out of the edge of the movable disc assembly to retract into the movable disc assembly.

[0013] Preferably, the stop groove comprises a blocking rib structure and a clamping structure; or the stop groove comprises a blocking rib structure, a clamping structure and an inclined surface structure; wherein,

[0014] the blocking rib structure is arranged at the edge of the bracket; and the blocking rib structure is used to limit the sliding of the first part of the sliding block;

[0015] the clamping structure is arranged at the first side of the blocking rib structure; and the clamping structure is used to clamp the first part of the sliding block to limit the unwinding of the movable disc assembly;

[0016] the inclined surface structure is arranged at the second side of the blocking rib structure; and the inclined surface structure is used to guide the first end of the sliding block to slide into the blocking rib structure.

[0017] Preferably, in the anti-falling reel, the first part of the sliding block is provided with a clamping hole matched with the clamping structure, the clamping hole is arranged as a stepped hole; the surface of the clamping hole clamped with the clamping structure is arranged as a plane, the plane is perpendicular to the sliding direction of the sliding block; or

[0018] In the anti-falling reel, the first part of the sliding block is provided with a clamping hole matched with the clamping structure, the clamping hole is arranged as a notch with a V-shaped cross section; the surface of the notch clamped with the clamping structure is arranged as an inclined surface, the inclined surface forms an obtuse angle with the sliding direction of the sliding block.

[0019] Preferably, a plurality of stop grooves are uniformly spaced around the bracket.

[0020] Preferably, the anti-falling reel comprises:

[0021] a fixed disc assembly connected to the bracket and cooperating with the bracket;

[0022] wherein the first end of the movable disc assembly is rotatably connected to the bracket, and the second end of the movable disc assembly is rotatably connected to the fixed disc assembly.

[0023] Preferably, the movable disc assembly, the bracket and the fixed disc assembly are rotatably connected through a shaft hole connection structure.

[0024] Preferably, the first end of the movable disc assembly is coaxially provided with a first shaft structure, the support is provided with a first hole structure in rotational cooperation with the first shaft structure; the second end of the movable disc assembly is coaxially provided with a second shaft structure, and the fixed disc assembly is provided with a second hole structure in rotational cooperation with the second shaft structure.

[0025] Preferably, the anti-falling winding device comprises:

[0026] A driving mechanism is arranged in the fixed disc assembly and is drivingly connected with the second hole structure in rotational cooperation with the fixed disc assembly.

[0027] The second hole structure is provided with a first platform in the opening, the second shaft structure is provided with a second platform, the second shaft structure is inserted into the second hole structure, and the first platform and the second platform are engaged to form a driving structure.

[0028] According to a second aspect of the present application, a base station is provided, comprising:

[0029] The base station body has a housing; and

[0030] The anti-falling winding device according to any one of the above is arranged in the housing.

[0031] According to a third aspect of the present application, a surface cleaning system is provided, comprising:

[0032] The base station as described above;

[0033] A surface cleaning device is connected to the base station.

[0034] The technical scheme of the present application cooperates the stop groove of the support with the sliding block on the movable disc assembly, and the movable disc assembly is timely and quickly triggered to lock the sliding block in the stop groove based on centrifugal force, so as to lock the movable disc assembly, avoid the equipment connected through the safety pulling element on the movable disc assembly from falling from a high altitude, and ensure the safety and reliability of the equipment in high-altitude operation.

[0035] In addition, in the safe state of equipment recovery, the inclined surface structure of the reset spring or the stop groove can realize the effect of double-unlocking of the sliding block, which is quick and convenient to unlock, and the user experience is good. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a structural schematic view of a base station containing an anti-falling winding device in an embodiment;

[0037] Figure 2 It is a three-dimensional structural schematic view of a base station in an embodiment;

[0038] Figure 3 It is a structural schematic view of a support in an embodiment;

[0039] Figure 4 Figure 1 is a schematic diagram of the cooperation between the sliding block and the sliding groove of the movable disc assembly in an embodiment;

[0040] Figure 5 Figure 2 is a schematic diagram of the structure of the fixed disc assembly in an embodiment;

[0041] Figure 6 Figure 3 is a schematic diagram of the first cooperation between the sliding block and the stop groove in an embodiment;

[0042] Figure 7 Figure 4 is a schematic diagram of the second cooperation between the sliding block and the stop groove in an embodiment;

[0043] Reference signs:

[0044] 1 - base station; 2 - fall arrestor;

[0045] 11 - housing; 21 - support; 22 - movable disc assembly; 23 - fixed disc assembly; 24 - driving mechanism;

[0046] 221 - shaft structure; 222 - stop groove; 223 - sliding block; 224 - fixed column; 225 - sliding groove; 226 - reset spring; 227 - bayonet;

[0047] 2211 - flat position; 2221 - inclined surface structure; 2222 - blocking rib structure; 2223 - clamping structure. DETAILED DESCRIPTION

[0048] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the protection scope of the present application.

[0050] It should be noted that the terms "first", "second", and the like in the present utility model are used to distinguish like objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of the present utility model described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0051] It should be understood that when an element (such as a layer, film, region, or substrate) is referred to as being "on" another element, it can be directly on the other element, or intervening elements can also be present. In addition, in the present utility model, when an element is described as being "connected" to another element, the element can be "directly connected" to the other element, or "connected" to the other element through a third element.

[0052] Embodiment one

[0053] Please refer to Figures 1-7 The present embodiment provides a kind of anti-falling reel, it is used to prevent high-altitude working equipment (such as window cleaning robot) from falling safety protection device.The anti-falling reel 2 mainly by support 21, movable disc assembly 22, slider 223 etc. Figure 1 , 2As shown, the safety rope can be pulled outward to realize the pay-off function when the disc assembly 22 rotates counterclockwise; the safety rope is pulled back into the base station 1 and wound on the disc assembly 22 to realize the take-up function when the disc assembly 22 rotates clockwise. The disc assembly 22 comprises two coaxially arranged discs, a gap is arranged between the two discs for accommodating the safety rope, and a winding shaft is coaxially connected between the two discs; the safety rope is wound on the outer periphery of the winding shaft, and the wound safety rope is accommodated in the gap; when the disc assembly 22 rotates, the winding shaft rotates synchronously to realize the pay-off or take-up. The sliding block 223 is arranged on the disc assembly 22, and the sliding block 223 is used to pull the disc assembly 22 to pay off when the safety pulling element is pulled; the first part of the sliding block 223 slides out of the edge of the disc assembly 22 under the action of centrifugal force (the centrifugal force is generated when the disc assembly 22 is rotated to pay off due to the falling of the equipment connected to the safety pulling element, of course, the centrifugal force is also generated when the disc assembly 22 is paid off by quickly pulling the safety pulling element by hand); the stop groove 222 is used to connect the sliding block 223 to lock the disc assembly 22 to pay off. The function of the anti-falling winding device 2 is realized by the mechanism that the sliding block 223 is locked by the stop groove 222 due to the centrifugal force, which stops the pay-off of the safety pulling element in time and quickly when the equipment falls, preventing safety accidents caused by equipment falling.

[0054] The structure design, working mechanism and technical optimization of the anti-falling winding device 2 will be described in detail below.

[0055] As shown in one embodiment of FIGS. Figure 1 , 2 , the disc assembly 22 is provided with at least one sliding groove 225, which is arranged on the mounting surface of the disc assembly 22 close to the support 21, and the first end of the sliding groove 225 penetrates the edge of the disc assembly 22; a matching sliding block 223 is arranged in the sliding groove 225. The surface of the sliding block 223 is preferably uniformly and spacedly provided with a plurality of ribs, and the ribs are arranged along the sliding direction of the sliding block 223; the purpose is to reduce the friction between the sliding block 223 and the sliding groove 225 and the support 21, and to support the sliding block 223 to prevent it from tilting relative to the sliding surface. As an example, one or more than one rib can be arranged on each side surface of the sliding block 223. As shown in Figure 4 , two ribs are arranged on each side surface of the sliding block 223.

[0056] In one embodiment, when the device connected on the safety rope falls, the slider 223 of the fall arrest winding device 2 acts and is locked with the stop groove 222. Then, the slider 223 and the stop groove 222 can be unlocked in the safety state. At this time, the unlocking can be performed manually, or the unlocking can be performed by setting the unlocking mechanism to push the slider 223. In addition, the engagement force of the slider 223 and the stop groove 222 can be released by setting the reset mechanism in the sliding groove 225 and cooperating with the winding of the disc assembly 22, so that the reset mechanism overcomes the engagement force and drives the first part of the slider 223 sliding out of the edge of the disc assembly 22 to automatically retract into the disc assembly 22, thereby unlocking the slider 223 and the stop groove 222 (applicable to the inclined surface cooperation of the carding structure 2223 of the V-shaped notch form of the carding port 227 on the slider 223 and the stop groove 222). The reset mechanism can also be used to release the engagement force of the slider 223 and the stop groove 222 by setting the reset mechanism in the sliding groove 225 and cooperating with the winding of the disc assembly 22 to the slider 223, so that the reset mechanism drives the first part of the slider 223 sliding out of the edge of the disc assembly 22 to retract into the disc assembly 22, thereby unlocking the slider 223 and the stop groove 222 (applicable to the planar cooperation of the carding structure 2223 of the stepped hole form of the carding port 227 on the slider 223 and the stop groove 222). The reset mechanism is preferably a reset spring 226. Specifically, the first end of the reset spring 226 is connected to the second end of the slider 223, and the second end of the reset spring 226 is fixed. The sliding groove 225 is provided with a fixed column 224 near the center of the disc assembly 22, and the tail (i.e. the second end) of the slider 223 is provided with a fixed column 224, and the two fixed holes of the reset spring 226 are hung on the two fixed columns 224.

[0057] As shown in one embodiment in Figures 1-3 , the stop groove 222 includes a blocking rib structure 2222 and a carding structure 2223. In another embodiment, the stop groove 222 includes a blocking rib structure 2222, a carding structure 2223 and an inclined surface structure 2221. The blocking rib structure 2222 is arranged at the edge of the bracket 21; the blocking rib structure 2222 is used to limit the sliding of the first part of the slider 223; the carding structure 2223 is arranged at the first side of the blocking rib structure 2222; the carding structure 2223 is used to card the first part of the slider 223 to limit the winding of the disc assembly 22; the inclined surface structure 2221 is arranged at the second side of the blocking rib structure 2222; the inclined surface structure 2221 is used to guide the first end of the slider 223 to slide into the blocking rib structure 2222. Preferably, the stop groove 222 is provided with a plurality of stop grooves 222, which are uniformly and spacedly arranged around the bracket 21. Figures 1-3 In one embodiment, the number of stop grooves 222 is four and is uniformly distributed relative to the center.

[0058] As shown in one embodiment in Figure 1 , 2In one embodiment shown in Figures 4 and 6, in the fall arrestor reel 2, the first part of the slider 223 is provided with a slot 227 that cooperates with the snap-fit ​​structure 2223. The slot 227 is a stepped hole; the surface of the stepped hole that engages with the snap-fit ​​structure 2223 is a plane, and the plane is perpendicular to the sliding direction of the slider 223. Figure 4 , 6 In the middle of slider 223, a stepped hole is provided. During normal wire feeding, the moving plate assembly 22 rotates at a relatively slow speed, and the centrifugal force on slider 223 is small. The tension of the return spring 226 (which can be called a return tension spring) is sufficient to keep slider 223 within the groove 225. The first part / top of slider 223 will not extend beyond the edge of the moving plate assembly 22, thus ensuring that slider 223 does not affect the rotation of the moving plate assembly 22. Figure 6 When the equipment (such as a window cleaning robot) falls, the safety rope is pulled quickly and at a relatively high speed. The safety rope drives the moving plate assembly 22 to rotate rapidly, and the slider 223 is subjected to a large centrifugal force, causing the slider 223 to move away from the center along the slide groove 225. When the top of the slider 223 moves to the stop groove 222, its top first moves along the inclined structure 2221 and slides into the stop groove 222 until it contacts the baffle structure 2222 and stops its radial movement. When the moving plate assembly 22 continues to rotate, the step of the stepped hole on the slider 223 will fit tightly against the step of the locking structure 2223 on the stop groove 222 to form a lock; at this time, the slider 223 becomes a pin, preventing the moving plate assembly 22 from continuing to rotate and unwind, holding the equipment and playing a protective role against falling.

[0059] Because the steps of slider 223 and the steps of stop groove 222 are engaged and locked together, there is a force between them that acts in the opposite direction to the tension of return spring 226. This prevents slider 223 from returning to its initial position (such as the first part of slider 223 retracting into the groove 225), thus achieving a self-locking effect. This continuously restricts the rotation of moving plate assembly 22, preventing it from rotating to unwind and continuously holding the equipment connected to it. This design ensures the stability of the locked state and effectively prevents accidental rotation of moving plate assembly 22 even under high load conditions. When the user retracts the equipment and the drive mechanism 24 of rotating fixed plate assembly 23 rotates in the opposite direction (rewinding), the steps of slider 223 and the steps of stop groove 222 relax until they completely separate. Under the tension of return spring 226, slider 223 retracts inward and completely exits from stop groove 222, eventually returning to its initial reset position. This does not affect the winding operation of moving plate assembly 22 within base station 1.

[0060] If the reset spring 226 fails, the top right side of the slider 223 will first contact the inclined surface structure 2221 of the stop groove 222 when the capstan assembly 22 is winding, and will be subjected to a force in the direction of the sliding groove 225, pushing the slider 223 to move to the center of the capstan assembly 22 in the sliding groove 225, and finally exiting the stop groove 222, at which time the slider 223 is unlocked from the stop groove 222. This design provides a redundant safety mechanism to ensure that the device can still be unlocked when the reset spring 226 fails.

[0061] As shown in Figure 1 , 2 , 4, 6, 7, the top (i.e. the first end) of the slider 223 is provided with two rounded corners, the right corner of which allows the slider 223 to smoothly contact the inclined surface structure 2221 of the stop groove 222, so as not to cause the slider 223 to jam due to excessive contact pressure. The left corner can guide the slider 223 to move outward and avoid entering the stop groove 222 at low speed when the tension of the reset spring 226 fails.

[0062] As shown in Figure 7 , in the anti-falling line winding device 2, the slider 223 and the card hole 227 of the stop groove 222 can also be provided in the form of an inclined surface, which can also achieve the anti-falling protection of the device. The first part of the slider 223 is provided with a card hole 227 matched with the carding structure 2223, and the card hole 227 is provided as a notch with a V-shaped cross section; the surface of the notch matched with the carding structure 2223 is provided as an inclined surface, and the inclined surface and the sliding direction of the slider 223 form an obtuse angle. When the user retrieves the device, the force of the inclined surface on the slider 223 is smaller than the tension of the reset spring 226, and the reset spring 226 can pull the slider 223 back to the initial position. In this way, the slider 223 on the capstan assembly 22 can be unlocked without winding the capstan assembly 22 (the capstan assembly 22 is reversed to loosen the degree of locking of the carding), which can bring another convenient operation experience.

[0063] As shown in Figures 1-3In one embodiment shown, the fall arrestor reel 2 includes: a fixed disc assembly 23; the fixed disc assembly 23 is connected to and cooperates with a bracket 21, and is a disc-shaped structure; wherein, the first end of the movable disc assembly 22 is rotatably connected to the bracket 21, and the second end of the movable disc assembly 22 is rotatably connected to the fixed disc assembly 23; the movable disc assembly 22 is mounted on the bracket 21 and is pressed and fixed by the fixed disc assembly 23. The safety rope of the device is wound around the fixed disc assembly 23, and the fixed disc assembly 23 can retract and extend the safety rope. Specifically, both ends of the movable disc assembly 22 are connected to the bracket 21 and the fixed disc assembly 23 respectively through a shaft hole connection structure, so that the movable disc assembly 22 can rotate relative to the fixed disc assembly 23 and the bracket 21 along the center of the shaft structure 221 and the hole structure. The shaft hole connection structure through which the movable disc assembly 22 cooperates with the fixed disc assembly 23 and the bracket 21 can have the following form:

[0064] 1. The moving plate assembly 22 has two protruding shaft structures 221, and the fixed plate assembly 23 and the bracket 21 have hole structures. The shaft structures 221 are inserted into the hole structures to form a rotational fit.

[0065] 2. The moving plate assembly 22 has two hole structures, and the fixed plate assembly 23 and the bracket 21 have shaft structures 221. The shaft structure 221 is inserted into the hole structures to form a rotational fit.

[0066] 3. The moving disk assembly 22 has a hole structure that mates with the fixed disk assembly 23, and the fixed disk assembly 23 has a shaft structure 221 that mates with the moving disk assembly 22; the moving disk assembly 22 has a shaft structure 221 that mates with the bracket 21, and the bracket 21 has a hole structure that mates with the moving disk assembly 22. The shaft structure 221 is inserted into the corresponding hole structure to form a rotational fit.

[0067] 4. The moving disk assembly 22 is provided with a shaft structure 221 that mates with the fixed disk assembly 23, and the fixed disk assembly 23 is provided with a hole structure that mates with the moving disk assembly 22; the moving disk assembly 22 is provided with a hole structure that mates with the bracket 21, and the bracket 21 is provided with a shaft structure 221 that mates with the moving disk assembly 22. The shaft structure 221 is inserted into the corresponding hole structure to form a rotational fit.

[0068] like Figure 1 , 2 The rotational fit of the first type of shaft structure 221 and hole structure shown above is preferred. That is, the first end of the moving disk assembly 22 is coaxially provided with a first shaft structure 221, and the bracket 21 is provided with a first hole structure that rotatably fits with the first shaft structure 221. The first shaft structure 221 and the first hole structure are rotatably fitted. The second end of the moving disk assembly 22 is coaxially provided with a second shaft structure 221, and the fixed disk assembly 23 is provided with a second hole structure that rotatably fits with the second shaft structure 221. The second shaft structure 221 and the second hole structure are rotatably fitted.

[0069] like Figure 1 ,2 In one embodiment shown, the anti-falling winding device 2 comprises a driving mechanism 24; the driving mechanism 24 is arranged on the fixed disc assembly 23 and is drivingly connected with the second hole structure, which is rotationally matched with the fixed disc assembly 23; wherein, a square shaft hole matched with the movable disc assembly 22 can be arranged, so that the driving mechanism 24 can drive the movable disc assembly 22 to rotate. The driving mechanism 24 can be a hand-rotating mechanism, an electric rotating mechanism or a clockwork rotating mechanism. Figure 1 In the embodiment, the driving mechanism 24 is an electric rotating mechanism, i.e. a motor. Preferably, a first platform is arranged in the opening of the second hole structure, and a second platform is arranged on the second shaft structure 221; the second shaft structure 221 is inserted into the second hole structure, and the first platform and the second platform are engaged to form a transmission structure. The first platform and the second platform can be referred to as flat portions 2211, which are engaged to form the transmission structure through the flat portions 2211, so as to ensure that the driving mechanism 24 drives the second shaft structure 221 and the second hole structure to synchronously rotate and realize power transmission, thereby avoiding slippage.

[0070] The anti-falling winding device 2 of the utility model, through the cooperation of the stop groove 222 of the support 21 and the sliding block 223 on the movable disc assembly 22, realizes the timely and rapid locking function of the safety pulling element, and can be smoothly unlocked. The working principle of the anti-falling winding device 2 is that the sliding block 223 is locked in the stop groove 222 based on centrifugal force, and then the movable disc assembly 22 is locked and no longer unwinds; the slope structure 2221 of the reset spring 226 or the stop groove 222 provides protection for realizing double unlocking, thereby ensuring the safety and reliability of the equipment in high-altitude operation. The technical scheme is not only suitable for window cleaning robots, but also can be widely applied to other high-altitude operation equipment, and provides an efficient and reliable safety protection solution for the industry.

[0071] Embodiment two

[0072] Please refer to Figures 1-7 The embodiment provides a base station, which comprises a shell 11 and an anti-falling winding device 2 according to any one of the above embodiments; the anti-falling winding device 2 is arranged in the shell 11 and is used for winding and unwinding a safety rope. When the equipment falls, the anti-falling winding device 2 in the base station 1 can timely and rapidly lock the movable disc assembly 22 to pull the equipment and prevent the equipment from falling.

[0073] Embodiment three

[0074] The embodiment provides a surface cleaning system, which comprises a surface cleaning device and a base station 1 according to any one of the above embodiments (such as Figure 1 , 2 ); the surface cleaning device is connected with the base station 1. The surface cleaning device is connected with the base station 1 through the safety rope. The surface cleaning device is generally a smooth surface cleaning device, especially a window cleaning robot or a glass cleaning robot.

[0075] When the surface cleaning device is in operation at a high altitude, when falling occurs, the anti-falling winding device 2 in the base station 1 can timely and quickly lock the disc assembly 22 to pull the surface cleaning device, prevent the equipment from falling, and protect the surface cleaning device.

[0076] The above are only preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fall-prevention cable reel, characterized in that, include: The bracket is circular; the bracket is provided with a stop groove. and The rotating disk assembly is rotatably connected to the bracket; The moving disk assembly is used for winding and unwinding slender safety traction elements; and The slider is slidably mounted on the moving disk assembly; The slider is used to pull the moving disc assembly to unwind when the safety traction element pulls it. The first part of the slider slides off the edge of the moving disc assembly under the action of centrifugal force. The stop groove is used to engage the slider to lock the unwinding of the moving disc assembly.

2. The anti-fall reel according to claim 1, characterized in that, The moving plate assembly is provided with a sliding groove, the first end of which passes through the edge of the moving plate assembly; a matching slider is provided inside the sliding groove.

3. The anti-fall reel according to claim 2, characterized in that, The surface of the slider is provided with multiple raised ribs at even intervals, and the raised ribs are arranged along the sliding direction of the slider.

4. The anti-fall reel according to claim 2, characterized in that, The slide groove is provided with a reset mechanism, which is used to drive the first part of the slider that has slid out of the edge of the moving disk assembly to retract into the moving disk assembly.

5. The anti-fall reel according to claim 1, characterized in that, The stop groove includes a baffle structure and a snap-fit ​​structure; or the stop groove includes a baffle structure, a snap-fit ​​structure, and a bevel structure; wherein... The baffle structure is located on the edge of the bracket; the baffle structure is used to restrict the sliding of the first part of the slider; The snap-fit ​​structure is located on the first side of the baffle structure; the snap-fit ​​structure is used to snap the first part of the slider to restrict the unwinding of the moving disc assembly; The inclined structure is located on the second side of the retaining rib structure; the inclined structure is used to guide the first end of the slider into the retaining rib structure.

6. The anti-fall reel according to claim 5, characterized in that, In the aforementioned fall-prevention reel, the first part of the slider is provided with a latch that mates with a snap-fit ​​structure; the latch is a stepped hole; the surface of the stepped hole that engages with the snap-fit ​​structure is a plane, and the plane is perpendicular to the sliding direction of the slider; or In the aforementioned anti-fall reel, the first part of the slider is provided with a notch that engages with the snap-fit ​​structure. The notch is a V-shaped notch. The surface of the notch that engages with the snap-fit ​​structure is an inclined surface, and the inclined surface forms an obtuse angle with the sliding direction of the slider.

7. The anti-fall reel according to claim 5, characterized in that, The stop groove is provided at even intervals around the bracket.

8. The anti-fall reel according to claim 1, characterized in that, The fall-prevention reel includes: A plate-fixing assembly, which connects to and mates with the bracket; The first end of the moving plate assembly is rotatably connected to the bracket, and the second end of the moving plate assembly is rotatably connected to the fixed plate assembly.

9. The anti-fall reel according to claim 8, characterized in that, The moving plate assembly is rotatably connected to the bracket and the fixed plate assembly through a shaft hole connection structure.

10. The anti-fall reel according to claim 9, characterized in that, The first end of the moving plate assembly is coaxially provided with a first shaft structure, and the bracket is provided with a first hole structure that rotatably engages with the first shaft structure; the second end of the moving plate assembly is coaxially provided with a second shaft structure, and the fixed plate assembly is provided with a second hole structure that rotatably engages with the second shaft structure.

11. The anti-fall reel according to claim 10, characterized in that, The fall-prevention reel includes: A drive mechanism is provided on the fixed plate assembly and is drivenly connected to the second hole structure, the second hole structure being rotatably engaged with the fixed plate assembly; The second hole structure has a first platform in the opening, the second shaft structure has a second platform, the second shaft structure is inserted into the second hole structure, and the first platform and the second platform are joined to form a transmission structure.

12. A base station, characterized in that, include: The base station itself has a casing; and The anti-fall reel according to any one of claims 1-11 is disposed in the housing.

13. A surface cleaning system, characterized in that, include: The base station as described in claim 12; A surface cleaning device is connected to the base station.

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