A squeegee with exposed blade

Abstract

A squeegee exposed type window cleaner, comprising an inner window cleaner and an outer window cleaner, the inner window cleaner comprising an inner window cleaner shell, a squeegee, an inner magnetic attraction component arranged in the inner window cleaner shell, the outer window cleaner comprising an outer window cleaner shell, a squeegee, an outer magnetic attraction component arranged in the outer window cleaner shell, the inner window cleaner and the outer window cleaner being oppositely arranged, the inner magnetic attraction component and the outer magnetic attraction component being attracted to each other, the inner window cleaner and the outer window cleaner being mutually attracted, the squeegee being detachably fixed to the top of the inner window cleaner and the outer window cleaner, an inner side being arranged on one side of the inner window cleaner and the outer window cleaner, and an outer side being arranged on the other side, the inner magnetic attraction component being provided with a magnetic force adjusting structure. The utility model has simple structure, the magnetic force between the inner magnetic attraction component and the outer magnetic attraction component is flexibly limited through the torsion of the knob, different thicknesses of windows can be flexibly adapted, the use flexibility and convenience are good, a top bead area is arranged, the friction between the window cleaner and the glass is reduced, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of window cleaning tools, specifically a window cleaning device with an exposed scraper. Background Technology

[0002] Existing window cleaners suffer from an unreasonable structural design, failing to flexibly adjust the magnetic force between the inner and outer wipers. They are also ill-suited for varying glass thicknesses, such as single-pane and double-pane windows. This results in either excessive magnetic force, making cleaning extremely difficult, or insufficient magnetic force, leading to the cleaner falling and posing a safety hazard. Furthermore, the friction between the cleaner and the glass is planar, creating significant resistance that hinders movement, increases operator fatigue, and easily scratches the glass. The fixed scraper blades also prevent flexible adjustment for different window sizes. The ease of use of existing window cleaners has significant room for improvement. Summary of the Invention

[0003] The technical solution of this utility model is: a window cleaner with an exposed scraper, including an inner window cleaner and an outer window cleaner. The inner window cleaner includes an inner window cleaner housing, a scraper, and an inner magnetic attraction component disposed within the inner window cleaner housing. The outer window cleaner includes an outer window cleaner housing, a scraper, and an outer magnetic attraction component disposed within the outer window cleaner housing. The inner and outer window cleaners are arranged opposite to each other, and the inner and outer magnetic attraction components attract each other, realizing mutual adsorption between the inner and outer window cleaners. The scraper is detachably connected to either the inner or outer window cleaner. The opposite side of the inner and outer window cleaners is the inner side, and the other side is the outer side. The inner magnetic attraction component includes an inner magnet limiting frame and a magnet, and the magnet is fixed on the inner magnet limiting frame. The outer magnetic attraction component includes an outer magnet limiting frame and a magnet, and the magnet is fixed on the outer magnet limiting frame. The outer magnet limiting frame limits the position of the magnet to correspond to the position of the magnet on the inner magnet limiting frame.

[0004] A window cleaner with an exposed scraper includes an inner window cleaner and an outer window cleaner. The inner window cleaner includes an inner window cleaner housing, a scraper, and an inner magnetic attraction component disposed within the inner window cleaner housing. The outer window cleaner includes an outer window cleaner housing, a scraper, and an outer magnetic attraction component disposed within the outer window cleaner housing. The inner and outer window cleaners are arranged opposite to each other, and the inner and outer magnetic attraction components attract each other, enabling the inner and outer window cleaners to adhere to each other. The scraper is detachable from either the inner or outer window cleaner. Disconnect the components; the inner and outer window cleaners are positioned with their opposite sides being the inner and outer surfaces, respectively; the inner magnetic component has a magnetic adjustment structure, which includes a magnet, a magnetic suction compartment, an inner magnet limiting frame, a knob, and an adjustment column, with the magnet fixed to the inner magnet limiting frame; the outer magnetic component includes an outer magnet limiting frame and a magnet, with the magnet fixed to the outer magnet limiting frame, and the outer magnet limiting frame defining the position of the magnet corresponding to the position of the magnet on the inner magnet limiting frame.

[0005] Preferably, the magnetic suction compartment is fixed in a relative position to the inner window cleaner housing, with the bottom of the magnetic suction compartment facing the side of the outer window cleaner. The inner magnetic limiting frame can move closer to or further away from the bottom of the magnetic suction compartment. The middle of the inner magnetic limiting frame is provided with a through hole for the adjustment column to pass through. A protruding limiting body is provided in the through hole. One end of the adjustment column is fixedly connected to the bottom of the magnetic suction compartment, and the other end is connected to a knob. Several steps are provided on the column body of the adjustment column. The limiting bodies on the inner magnetic limiting frame are stuck on the steps of different heights, which limits the distance between the inner magnetic limiting frame and the bottom of the magnetic suction compartment to be different, and the magnetic force between the inner window cleaner and the outer window cleaner to be different.

[0006] Preferably, in the magnetic adjustment structure, a limiting sleeve is provided on the inner magnet limiting frame, a spring column is provided at the bottom of the magnetic suction chamber, one end of the spring column is fixed to the bottom of the magnetic suction chamber, and the other end abuts against the limiting sleeve. A magnetic suction chamber cover is provided at the top of the magnetic suction chamber, and a knob receiving position is provided on the magnetic suction chamber cover and the inner window cleaner housing. The knob is located in the knob receiving position. The inner magnetic suction component also includes a tension spring, the middle of which is fixed to the adjusting column, and both ends of which are engaged with the bottom of the magnetic suction chamber. When the knob is pressed, the tension spring drives the adjusting column to rotate quickly to reset, and the spring column pushes the inner magnet limiting frame away from the bottom of the magnetic suction chamber.

[0007] Preferably, the knob is provided with an identification structure. This identification structure is provided on the magnetic compartment cover or the inner window cleaner housing, or an indicator hole is provided on the inner window cleaner housing near the knob. By providing different markings on the knob, rotating the knob allows observation of different markings through the indicator hole to distinguish them.

[0008] Preferably, both the inner and outer sides of the inner and outer window cleaner housings are provided with a top bead area. This top bead area includes a raised fixed top bead and a movable ball structure. Preferably, the fixed top beads are evenly distributed symmetrically around the central axis of the top bead area. The movable ball structure includes a ball retainer and a ball. The inner or outer window cleaner housing has a recessed ball area. The ball retainer is located within the ball area and fixedly connected to the inner or outer window cleaner housing. The ball retainer has a ball hole. The ball is located within the ball area and is limited by a ball retaining surface. A portion of the ball protrudes from the ball hole and protrudes from the surface of the ball retainer. The ball retaining surface is located on the inner surface of the ball area and at the ball hole, limiting the ball from both sides.

[0009] Preferably, the scraper has a connecting post in the middle, and the inner window cleaner housing and the outer window cleaner housing have connecting parts that snap onto the connecting post. The connecting post achieves a fixed connection between the scraper and the inner window cleaner housing or the outer window cleaner housing through the snap-on connection of the connecting parts.

[0010] Preferably, the ratio of the length of the scraper to the width of the inner or outer window cleaner housing is 0.8–4.

[0011] Preferably, the inner surface of the scraper is a flexible arc-shaped surface.

[0012] Preferably, both sides of the inner or outer window cleaner housing are provided with anti-slip structures. These anti-slip structures are either integrally formed concave-convex structures on the inner or outer window cleaner housing or detachable concave-convex sheet structures. The inner surface of the inner or outer window cleaner housing is also provided with a recessed cloth receiving position, where a cloth can be detachably connected.

[0013] The beneficial effects of this utility model are:

[0014] This utility model has a simple structural design. By rotating the knob, the magnetic force between the inner and outer magnetic components can be flexibly limited, which can flexibly adapt to windows of different thicknesses and provides good flexibility and convenience in use.

[0015] This utility model also features a top bead area. By combining a fixed top bead and a movable top bead structure, the original surface contact between the window cleaner and the glass is transformed into point contact, reducing the friction between the window cleaner and the glass. This makes it more convenient for the operator to use and effectively prevents the window cleaner from scratching the glass.

[0016] This invention also employs a replaceable scraper structure, allowing for the adjustment of different scraper sizes according to the window size, thereby improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention as viewed from one side of the internal window wiper.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention as viewed from one side of the external window wiper.

[0019] Figure 3 This is a schematic diagram of the inner side of the external window cleaner of this utility model.

[0020] Figure 4 This is a cross-sectional view (AA) of the present invention.

[0021] Figure 5 This is a cross-sectional view of the magnetic adjustment structure of the interior window cleaner of this utility model.

[0022] Figure 6 This is a schematic diagram showing the structural relationship between the knob and the adjusting column of this utility model.

[0023] Figure 7 This is a schematic diagram showing the structural relationship between the inner magnet limiting frame and the adjusting column of this utility model.

[0024] Figure 8 This is a schematic diagram of the external magnetic attraction component of this utility model.

[0025] Label Explanation

[0026] 1: External window cleaner; 11: External window cleaner housing;

[0027] 2: Scraper; 21: Connecting post;

[0028] 3: Anti-slip structure;

[0029] 4: Interior window cleaner; 41: Interior window cleaner housing;

[0030] 5: Cloth holder;

[0031] 6: Connecting part;

[0032] 71: Fixed ball; 72: Ball area; 73: Ball retainer; 74: Ball; 75: Ball retainer surface; 76: Ball area;

[0033] 82: External magnet limiting bracket;

[0034] 91: Magnetic compartment; 92: Magnetic compartment cover; 93: Knob; 95: Inner magnet limit bracket; 951: Through hole; 952: Limiting body; 953: Limiting sleeve; 96: Adjusting column; 961: Step; 97: Spring column; 98: Tension spring;

[0035] 10: Magnet; Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Example 1

[0038] like Figure 1-8 As shown, a window cleaner with an exposed scraper includes an inner window cleaner 4 and an outer window cleaner 1. The inner window cleaner 4 includes an inner window cleaner housing 41, a scraper 2, and an inner magnetic attraction component disposed within the inner window cleaner housing 41. The outer window cleaner 1 includes an outer window cleaner housing 11, a scraper 2, and an outer magnetic attraction component disposed within the outer window cleaner housing 11. The inner window cleaner 4 and the outer window cleaner 1 are arranged opposite to each other, and the inner magnetic attraction component attracts the outer magnetic attraction component, realizing the mutual attraction between the inner window cleaner 4 and the outer window cleaner 1. The scraper 2 and the inner magnetic attraction component... The window cleaner 4 or the external window cleaner 1 is detachably connected; the side opposite to the internal window cleaner 4 and the external window cleaner 1 is the inner side, and the other side is the outer side; the internal magnetic attraction component includes an internal magnet limiting frame 95 and a magnet 10, the magnet 10 is fixed on the internal magnet limiting frame 95, the external magnetic attraction component includes an external magnet limiting frame 82 and a magnet 10, the magnet 10 is fixed on the external magnet limiting frame 82, the external magnet limiting frame 82 limits the position of the magnet 10 to correspond to the position of the magnet 10 on the internal magnet limiting frame 95.

[0039] In this embodiment, as Figure 2-3 As shown, both the inner surface of the inner window cleaner housing 41 and the inner surface of the outer window cleaner housing 11 are provided with a top bead area 72. This top bead area 72 includes a raised fixed top bead 71 or a movable ball structure. Preferably, the fixed top beads 71 ​​are evenly distributed symmetrically around the central axis within the top bead area 72. The movable ball structure includes a ball fixing body 73 and balls 74. The inner window cleaner housing 41 or the outer window cleaner housing 11 is provided with a recessed ball area 76. The ball bearing fixing body 73 is disposed within the ball bearing area 76 and fixedly connected to the inner window cleaner housing 41 or the outer window cleaner housing 11. The ball bearing fixing body 73 has ball bearing holes. The ball bearing 74 is disposed within the ball bearing area 76 and is limited by the ball bearing fixing curved surface 75. A portion of the ball bearing 74 protrudes from the ball bearing hole and protrudes from the surface of the ball bearing fixing body 73. The ball bearing fixing curved surface 75 is distributed on the inner surface of the ball bearing area 76 and at the ball bearing hole, limiting the ball bearing 74 from both sides. The fixed top ball 71 reduces the original surface contact between the window cleaner and the glass to a point contact with the fixed top ball 71, thus reducing friction. The movable ball bearing structure improves the mobility of the middle part of the window cleaner, reducing sliding friction to rolling friction. Overall, this reduces the friction between the window cleaner and the glass, making it easier to use and effectively preventing glass scratches.

[0040] In this embodiment, the ball bearing is made of POM or glass.

[0041] In this embodiment, the scraper 2 has a connecting post 21 in the middle, and the inner window cleaner housing 41 and the outer window cleaner housing 11 are provided with connecting parts 6 that engage with the connecting post 21. The connecting post 21 is engaged with the inner window cleaner housing 41 or the outer window cleaner housing 11 through the connecting parts 6 to achieve a fixed connection between the scraper 2 and the inner window cleaner housing 41 or the outer window cleaner housing 11. This structure allows for the replacement of scrapers 2 of different sizes according to different usage requirements.

[0042] In this embodiment, the ratio of the length of the scraper 2 to the width of the inner window cleaner housing 41 or the outer window cleaner housing is 0.8-4. This ratio was determined through repeated testing, and scrapers within this ratio have good scraping efficiency and good operational stability.

[0043] In this embodiment, the inner surface of the scraper 2 is a flexible arc-shaped surface. The middle of the scraper 2 is concave, and the left and right ends extend towards the direction of attachment to the glass. The overall shape of the scraper is like that of a windshield wiper. The flexible arc-shaped surface of the scraper allows the scraper surface to fit tightly against the glass. As the curvature of the glass changes, the scraper can always maintain a close fit with the glass for cleaning, thus improving the cleaning ability.

[0044] In this embodiment, both sides of the inner window cleaner housing 41 or the outer window cleaner housing 11 are provided with anti-slip structures 3. These anti-slip structures 3 are either an integrally formed concave-convex structure on the inner window cleaner housing 41 or the outer window cleaner housing 11, or a detachable concave-convex plate structure. The anti-slip structure 3 can effectively improve grip and prevent the window cleaner from slipping during operation.

[0045] In this embodiment, the inner surface of the inner window cleaner housing 41 or the outer window cleaner housing 11 is also provided with a recessed cloth receiving position 5, and a cloth can be detachably connected to the cloth receiving position 5.

[0046] Example 2

[0047] In this embodiment, the difference from Embodiment 1 is that: a window cleaner with an exposed scraper blade includes an inner window cleaner 4 and an outer window cleaner 1. The inner window cleaner 4 includes an inner window cleaner housing 41, a scraper blade 2, and an inner magnetic attraction component disposed within the inner window cleaner housing 41. The outer window cleaner 1 includes an outer window cleaner housing 11, a scraper blade 2, and an outer magnetic attraction component disposed within the outer window cleaner housing 11. The inner window cleaner 4 and the outer window cleaner 1 are arranged opposite to each other, and the inner magnetic attraction component attracts the outer magnetic attraction component, realizing mutual attraction between the inner window cleaner 4 and the outer window cleaner 1. The scraper blade 2 is attached to either the inner window cleaner 4 or the outer window cleaner 1. 1 is a detachable connection; the inner window cleaner 4 and the outer window cleaner 1 have opposite sides, which are the inner and outer sides respectively; the inner magnetic suction component is provided with a magnetic force adjustment structure, which includes a magnet 10, a magnetic suction compartment 91, an inner magnet limiting frame 95, a knob 93, and an adjustment column 96. The magnet 10 is fixed on the inner magnet limiting frame 95. The outer magnetic suction component includes an outer magnet limiting frame 82 and a magnet 10. The magnet 10 is fixed on the outer magnet limiting frame 82, and the outer magnet limiting frame 82 limits the position of the magnet 10 to correspond to the position of the magnet 10 on the inner magnet limiting frame 95.

[0048] The magnetic suction compartment 91 is fixed in a relative position to the inner window cleaner housing 41. The bottom of the magnetic suction compartment 91 faces the side of the outer window cleaner 1, and the inner magnet limiting frame 95 can move closer to or further away from the bottom of the magnetic suction compartment 91. The middle of the inner magnet limiting frame 95 is provided with a through hole 951 for accommodating the adjustment post 96. A protruding limiting body 952 is provided in the through hole 951. Figure 8 As shown, one end of the adjusting column 96 is connected to the bottom of the magnetic suction chamber 91, and the other end is connected to the knob 93. Several steps 961 are provided on the column body of the adjusting column 96. The limiting body 952 on the inner magnet limiting frame 95 is engaged with the steps 961 of different heights, limiting the distance between the inner magnet limiting frame 95 and the bottom of the magnetic suction chamber 91. This results in different magnetic forces attracting the inner window cleaner 4 and the outer window cleaner 1. When the inner and outer magnetic components attract each other, the inner magnet limiting frame 95 will move closer to the bottom of the magnetic suction chamber 91 as the magnet 10 is attracted. By rotating the knob 93, the steps 961 of different heights abut against the limiting body 952 on the inner magnet limiting frame 95, thereby limiting the distance between the inner magnet limiting frame 95 and the bottom of the magnetic suction chamber 91. The smaller the distance, the greater the attraction force between the magnets 10.

[0049] like Figure 5-7As shown, in the magnetic force adjustment structure, a limiting sleeve 953 is provided on the inner magnet limiting frame 95, a spring post 97 is provided at the bottom of the magnetic suction chamber 91, one end of the spring post 97 is fixed to the bottom of the magnetic suction chamber 91, and the other end abuts against the limiting sleeve 953. A magnetic suction chamber cover 92 is provided at the top of the magnetic suction chamber 91. A knob receiving position is provided on the magnetic suction chamber cover 92 and the inner window cleaner housing 41, and the knob 93 is located in the knob receiving position. In actual production, the magnetic suction chamber cover 92 can... Therefore, the inner window cleaner housing 41 is a separate structure, or the inner window cleaner housing 41 can also serve as the magnetic suction compartment cover 92, which limits the upper limit position of the inner magnetic limit frame 95; the inner magnetic suction component also includes a tension spring 98, the middle part of which is fixed to the adjusting column 96, and the two ends of the tension spring 98 are engaged with the bottom of the magnetic suction compartment 91. When the knob 93 is pressed, the tension spring 98 drives the adjusting column 96 to rotate quickly and reset, and the spring column 97 pushes the inner magnetic limit frame 95 away from the bottom of the magnetic suction compartment 91.

[0050] In this embodiment, a marking structure is provided at the knob 93. This marking structure is located on the magnetic suction compartment cover 92 or the inner window cleaner housing 41. The marking structure can be represented by numbers or graphics to indicate different levels of magnetic force. Alternatively, an indicator hole can be provided on the inner window cleaner housing 41 near the knob 93. By setting different markings on the knob 93, rotating the knob 93 and observing the markings through the indicator hole, the strength of the magnetic force can be clearly distinguished. The markings can take various forms, including but not limited to stickers, laser printing, screen printing, and heat transfer printing. They can even be directly set on the mold during the knob manufacturing process, forming a single piece during injection molding, which is convenient and quick. The specific form of the markings can be selected according to actual production needs and costs.

[0051] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "inner side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A window cleaner with exposed scraper blade, comprising an inner window cleaner (4) and an outer window cleaner (1), wherein the inner window cleaner (4) comprises an inner window cleaner housing (41), a scraper blade (2), and an inner magnetic attraction component disposed within the inner window cleaner housing (41); and the outer window cleaner (1) comprises an outer window cleaner housing (11), a scraper blade (2), and an outer magnetic attraction component disposed within the outer window cleaner housing (11). The inner window cleaner (4) and the outer window cleaner (1) are arranged opposite to each other, and the inner magnetic attraction component attracts the outer magnetic attraction component, thereby achieving mutual adsorption between the inner window cleaner (4) and the outer window cleaner (1), characterized in that... The scraper (2) is detachably connected to the inner window cleaner (4) or the outer window cleaner (1); the inner window cleaner (4) and the outer window cleaner (1) have opposite sides, one side being the inner side and the other side being the outer side; the inner magnetic component includes an inner magnet limiting frame (95) and a magnet (10), the magnet (10) being fixed on the inner magnet limiting frame (95); the outer magnetic component includes an outer magnet limiting frame (82) and a magnet (10), the magnet (10) being fixed on the outer magnet limiting frame (82), the outer magnet limiting frame (82) limiting the position of the magnet (10) to correspond to the position of the magnet (10) on the inner magnet limiting frame (95).

2. A window cleaner with exposed scraper blade, comprising an inner window cleaner (4) and an outer window cleaner (1), wherein the inner window cleaner (4) comprises an inner window cleaner housing (41), a scraper blade (2), and an inner magnetic attraction component disposed within the inner window cleaner housing (41); and the outer window cleaner (1) comprises an outer window cleaner housing (11), a scraper blade (2), and an outer magnetic attraction component disposed within the outer window cleaner housing (11). The inner window cleaner (4) and the outer window cleaner (1) are arranged opposite to each other, and the inner magnetic attraction component attracts the outer magnetic attraction component, thereby achieving mutual adsorption between the inner window cleaner (4) and the outer window cleaner (1). The scraper (2) is detachably connected to the inner window cleaner (4) or the outer window cleaner (1); the inner window cleaner (4) and the outer window cleaner (1) have opposite sides, one side being the inner side and the other side being the outer side; the inner magnetic suction component is provided with a magnetic force adjustment structure, which includes a magnet (10), a magnetic suction compartment (91), an inner magnet limiting frame (95), a knob (93), and an adjustment column (96), and the magnet (10) is fixed on the inner magnet limiting frame (95); the outer magnetic suction component includes an outer magnet limiting frame (82) and a magnet (10), and the magnet (10) is fixed on the outer magnet limiting frame (82), and the outer magnet limiting frame (82) limits the position of the magnet (10) to correspond to the position of the magnet (10) on the inner magnet limiting frame (95).

3. A window cleaning device with exposed scraper according to claim 2, characterized in that... The magnetic suction compartment (91) is fixed in a relative position to the inner window cleaner housing (41). The bottom of the magnetic suction compartment (91) faces the side of the outer window cleaner (1), and the inner magnetic limiting frame (95) can move closer to or further away from the bottom of the magnetic suction compartment (91). The middle part of the inner magnetic limiting frame (95) is provided with a through hole (951) for the adjustment column (96) to pass through. The through hole (951) is provided with a protruding limiting body (952). One end of the adjustment column (96) is connected to the bottom of the magnetic suction compartment (91), and the other end is connected to the knob (93). Several steps (961) are provided on the column of the adjustment column (96), and the limiting body (952) on the inner magnetic limiting frame (95) is locked on the steps (961) at different heights.

4. A window cleaning device with exposed scraper according to claim 2, characterized in that... In the magnetic force adjustment structure, a limiting sleeve (953) is provided on the inner magnet limiting frame (95), and a spring column (97) is provided at the bottom of the magnetic suction chamber (91). One end of the spring column (97) is fixed to the bottom of the magnetic suction chamber (91), and the other end abuts against the limiting sleeve (953). A magnetic suction chamber cover (92) is provided at the top of the magnetic suction chamber (91). The magnetic suction chamber cover (92) and the inner window cleaner housing (41) are provided with a rotating... The knob (93) is located in the knob receiving position; the inner magnetic suction component also includes a tension spring (98), the middle part of which is fixed to the adjusting column (96), and the two ends of the tension spring (98) are engaged with the bottom of the magnetic suction chamber (91). When the knob (93) is pressed, the tension spring (98) drives the adjusting column (96) to rotate quickly to reset, and the spring column (97) pushes the inner magnet limiting frame (95) away from the bottom of the magnetic suction chamber (91).

5. A window cleaning device with exposed scraper according to claim 2, characterized in that... The knob (93) is provided with an identification structure. The identification structure is located on the magnetic suction compartment cover (92) or the inner window cleaner housing (41), or an indicator hole is provided on the inner window cleaner housing (41) near the knob (93). By setting different markings on the knob (93), the knob (93) can be rotated and the markings can be observed from the indicator hole to distinguish them.

6. A window cleaning device with exposed scraper according to claim 1 or 2, characterized in that... Both the inner side of the inner window cleaner housing (41) and the inner side of the outer window cleaner housing (11) are provided with a top bead area (72). The top bead area (72) includes a protruding fixed top bead (71) or a movable ball structure. The movable ball structure includes a ball fixing body (73) and a ball (74). The inner window cleaner housing (41) or the outer window cleaner housing (11) is provided with a concave ball area (76). The ball fixing body (73) is located in the ball area (76) and... It is fixedly connected to the inner window cleaner housing (41) or the outer window cleaner housing (11). The ball fixing body (73) is provided with a ball hole. The ball (74) is located in the ball area (76) and is limited by the ball fixing surface (75). Part of the ball (74) protrudes from the ball hole and protrudes from the surface of the ball fixing body (73). The ball fixing surface (75) is located on the inner surface of the ball area (76) and at the ball hole, and limits the ball (74) from both sides.

7. A window cleaning device with exposed scraper according to claim 1 or 2, characterized in that... The scraper (2) is provided with a connecting post (21) in the middle. The inner window cleaner housing (41) and the outer window cleaner housing (11) are provided with a connecting part (6) for engaging the connecting post (21). The connecting post (21) is engaged with the connecting part (6) to achieve a fixed connection between the scraper (2) and the inner window cleaner housing (41) or the outer window cleaner housing (11).

8. A window cleaning device with exposed scraper according to claim 1 or 2, characterized in that... The length of the scraper (2) is 0.8-4 times the width of the inner window cleaner housing (41) or the outer window cleaner housing.

9. A window cleaning device with exposed scraper according to claim 1 or 2, characterized in that... The inner surface of the scraper (2) is a flexible arc-shaped surface.

10. A window cleaning device with exposed scraper according to claim 1 or 2, characterized in that... Both sides of the inner window cleaner housing (41) or the outer window cleaner housing (11) are provided with anti-slip structures (3). The anti-slip structures (3) are either integrally formed concave-convex structures on the inner window cleaner housing (41) or the outer window cleaner housing (11) or detachable concave-convex sheet structures. The inner surface of the inner window cleaner housing (41) or the outer window cleaner housing (11) is also provided with a recessed cloth receiving position (5), where a cloth can be detachably connected.

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