Double-sided squeezing water squeezing device, cleaning tool and self-squeezing water foam mop

Abstract

The present invention relates to a double-side squeezing water squeezing device, comprising a squeezing frame with an squeezing port, a squeezing component provided in the squeezing port, two groups of squeezing components arranged opposite to each other at intervals in front and back, when squeezing water, a mop head with foam cotton directly or indirectly bonded to the bottom surface is rotated to align and pass through the squeezing port, and the oppositely arranged squeezing components are moved along the length direction of the foam cotton to squeeze water from the front and back sides of the foam cotton; the characteristic is that the squeezing components can be movably arranged in the squeezing frame relative to the squeezing frame, when squeezing water, the foam cotton and / or the mop head firstly cause the squeezing components to move, and a squeezing channel is formed between the squeezing components after the movement, and when the foam cotton passes through the squeezing channel and is squeezed by the squeezing channel, the squeezing force of the squeezing channel on the two sides of the outer end of the foam cotton is greater than the squeezing force on the two sides of the inner end of the foam cotton. The squeezing device is not easy to tear the bonding surface of the foam cotton during the cleaning and squeezing operation. The present invention also relates to a cleaning tool and a self-squeezing foam cotton mop.

Description

Technical Field

[0001] The present invention relates to a water squeezing device for squeezing foam cotton in a mop head on both sides, the water squeezing device can be used on a cleaning tool including a cleaning bucket, and can also be used on a self-squeezing foam cotton mop, wherein the foam cotton can be a rubber cotton head, a sponge head or the like. The present invention also relates to a cleaning tool having the water squeezing device and a cleaning bucket, and a self-squeezing foam cotton mop having the water squeezing device. Background Art

[0002] Someone invented a cleaning tool specifically for a foam mop or a self-squeezing foam mop with a squeezing device, wherein the cleaning tool includes a cleaning bucket and a mop head with foam that is rotatably connected to the lower end of a mop rod, and the squeezing device is arranged on the cleaning bucket. The self-squeezing foam mop, on the other hand, has a squeezing device arranged on the mop rod and can slide up and down along the mop rod. The squeezing device structures of the two are similar, and the squeezing component in the squeezing device squeezes the foam on the mop head that moves up and down through the squeezing device. Due to the characteristics of the foam material, it has a larger size in the thickness direction. Therefore, two squeezing methods are used for the squeezing structure of the foam mop.

[0003] Water squeezing method 1: The squeezing component only squeezes the bottom surface of the foam. Chinese invention patent application number CN201811267670.4 "A rubber cotton mop squeezing bucket" and Chinese invention patent application number CN201710920255.3 "A cleaning bucket and rubber cotton mop for cleaning rubber cotton mops" both disclose the first water squeezing method.

[0004] The second way of squeezing water: There are two squeezing components that squeeze the left and right sides of the foam at the same time. For example, the Chinese utility model patent "A foam mop cleaning tool" with patent number ZL201821624855.1 applied by the applicant discloses the second way of squeezing water.

[0005] The above two squeezing methods have their own characteristics. Compared with squeezing method 1, squeezing method 2 has better squeezing effect and relatively labor-saving operation. However, the cleaning tools of prior art method 2 have the following commonalities: 1. The foam is fixed on the mounting plate by bonding, and the mounting plate is connected to the mop plate, or the foam is bonded to the mop plate; 2. The extrusion surfaces of the two extrusion components in contact with the foam are arranged in parallel and spaced apart, that is, the width of the extrusion channel between the two extrusion components along the axial direction of the extrusion components (basically biased towards the thickness direction of the foam) is basically the same, and the bottom surface of the foam has a certain curvature. When the mop head passes through the extrusion port of the extrusion device, the extrusion force of the extrusion component on the left and right sides of the foam along its thickness direction is basically the same, or the extrusion force of the extrusion component on the left and right sides of the foam close to the mop plate is slightly greater than the extrusion force away from the mop plate. To squeeze out the water, the extrusion force needs to be relatively large, which will cause such a problem that the bonding surface of the foam is easily torn, resulting in product damage. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a water squeezing device for squeezing the foam cotton in the mop head on both sides in view of the above-mentioned existing technical status, and the water squeezing device is not easy to tear the adhesive surface of the foam cotton during the cleaning and squeezing operation.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a double-side squeezing water squeezing device, comprising a squeezing frame with an squeezing port, a squeezing component is arranged in the squeezing port, and the squeezing components have two groups and are arranged opposite to each other with a front-back interval. When squeezing water, the mop head with foam cotton directly or indirectly bonded to the bottom surface is rotated to align and pass through the squeezing port, and the opposite squeezing components are moved along the length direction of the foam cotton to squeeze water from the front and back sides of the foam cotton; the characteristic is that the squeezing component can be movably arranged in the squeezing frame relative to the squeezing frame, when squeezing water, the foam cotton and / or the mop head firstly promote the squeezing component to move, and a squeezing channel is formed between the squeezing components after the movement, and when the foam cotton passes through the squeezing channel and is squeezed by the squeezing channel, the squeezing force of the squeezing channel on the outer ends of the foam cotton is greater than the squeezing force on the inner ends of the foam cotton.

[0008] As an active implementation method, the extrusion component is swingably arranged in the water squeezing frame, that is, the extrusion component swings at one end in the axial direction with the other end in the axial direction as the swing center to achieve opening and closing, and an extrusion channel is formed between the swinging extrusion components.

[0009] Alternatively, the extrusion side wall between the inner end and the outer end of the extrusion channel is an inclined surface, a curved surface or a toothed surface.

[0010] As an improvement, the squeezing rack is also provided with an elastic member for returning the squeezing member to the initial position after the swing. When the mop head passes through the squeezing port, the foam cotton prompts the squeezing member to swing away from the initial position. The setting of the elastic member provides auxiliary squeezing force to the squeezing member, which can better squeeze the foam cotton and achieve good squeezing effect. In addition, it also prevents the squeezing member from shaking easily under normal conditions.

[0011] As an installation method of the squeezing roller, the squeezing component is a squeezing roller, which is mounted on a pin and can rotate around its own axis. The pin constitutes the axis of the squeezing component. One end of the pin is hinged on the water squeezing frame to form a swing center, and the other end of the pin is movably inserted in the strip hole of the water squeezing frame and can slide along the strip hole. The rolling squeezing roller can ensure that the foam passes through the squeezing channel relatively easily, and the setting of the strip hole ensures that the squeezing component swings better in the preset path. This installation method is convenient for installation. Of course, it is also possible to set protruding pivots at both ends of the squeezing roller, which are hinged on the water squeezing frame and transmitted in the strip hole through the pivot.

[0012] As another structure of the extrusion component, the above-mentioned extrusion component is a fixed block, and protruding pivots are provided at both ends of the fixed block, and the pivots constitute the axis of the extrusion component. The pivot on one side of the fixed block is hinged on the water squeezing frame to form a swing center, and the pivot on the other side of the fixed block is inserted into the strip hole of the water squeezing frame and can slide along the strip hole.

[0013] In order to prevent the fixing block from scratching the foam, the extrusion side wall of the fixing block that is pressed against the foam is a curved surface.

[0014] As another way to realize the activity, the above-mentioned extrusion component can slide forward and backward relative to the water squeezing frame, that is, the axis of the extrusion component can slide forward and backward, and the sliding amplitude of one end of the axis of the extrusion component is greater than the sliding amplitude of the other end of the axis of the extrusion component, and the extrusion channel is formed between the extrusion components after sliding.

[0015] As an improvement, the squeezing rack is also provided with an elastic member for returning the squeezing member to the initial position after sliding. When the mop head passes through the squeezing port, the foam and / or the mop head cause the squeezing member to swing away from the initial position. The setting of the elastic member provides auxiliary squeezing force to the squeezing member, which can better squeeze the foam and achieve a good squeezing effect. In addition, it also prevents the squeezing member from shaking easily under normal conditions.

[0016] As an installation method of the squeezing roller, the squeezing component is a squeezing roller, which is mounted on a pin and can rotate around its own axis. The pin constitutes the axis of the squeezing component. One end of the pin is movably inserted into a first strip guide hole on one side of the water squeezing rack and can slide along the first strip guide hole. The other end of the pin is movably inserted into a second strip guide hole on the other side of the water squeezing rack and can slide along the second strip guide hole. The length of the first strip guide hole is less than the length of the second strip guide hole. The rolling squeezing roller can ensure that the foam passes through the squeezing channel relatively easily, and the setting of the strip hole ensures that the squeezing component swings better in the preset path. This installation method is convenient for installation. Of course, it is also possible to set protruding pivots at both ends of the squeezing roller, which are hinged on the water squeezing rack and transmitted in the strip hole through the pivot.

[0017] As another structure of the extrusion component, the extrusion component is a fixed block, and protruding guide shafts are provided at both ends of the fixed block, and the guide shafts constitute the axis of the extrusion component. The guide shaft on one side of the fixed block is movably inserted in the first strip guide hole on one side of the water squeezing frame and can slide along the first strip guide hole, and the guide shaft on the other side of the fixed block is movably inserted in the second strip guide hole on the other side of the water squeezing frame and can slide along the second strip guide hole, and the length of the first strip guide hole is smaller than the length of the second strip guide hole.

[0018] The second technical problem to be solved by the present invention is to provide a double-sided squeezed foam mop cleaning tool in response to the above-mentioned existing technical status. The cleaning tool is not easy to tear the adhesive surface of the foam during the cleaning and squeezing operations, and the cleaning operation and the squeezing operation can be completed in one barrel space.

[0019] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a cleaning tool, including a cleaning bucket and a mop head rotatably connected to the lower end of the mop rod, the bottom surface of the mop head is directly or indirectly bonded with foam, and is characterized in that: it also includes the aforementioned water squeezing device, and the water squeezing frame is arranged on the cleaning bucket.

[0020] The mop rod and mop head of a traditional flat mop are universally connected (the mop rod needs to swing back and forth and left and right relative to the mop head). Due to the thickness of the foam and the high center of gravity of the foam, when the user applies force along the width direction of the foam (front and back direction) to mop the floor, the mop head is prone to tipping over, which seriously affects the comfort of mopping operation. To avoid the above situation, this solution overcomes technical prejudice and designs the mop rod to be able to swing left and right only relative to the mop head and along the length direction of the mop head. In this way, even when the user applies force along the width direction of the foam to mop the floor, the folded mop head is not prone to tipping over, and the mopping operation is more comfortable.

[0021] As a further improvement, a rib-groove plug-in guide structure is provided between the water squeezing rack and the mop head, and under the action of the rib-groove plug-in guide structure, the mop head moves up and down in the through opening along a preset trajectory to prevent the mop head from turning over or deviating.

[0022] The rib-groove plug-in guide structure guides the mop head to move up and down in the extrusion port along a preset trajectory, which can prevent the mop head from being stuck between the two extrusion components due to deviation when the foam cotton contacts the extrusion component, while reducing the resistance of the mop head moving in the through-hole, making the contact between the mop head and the extrusion component more effective, saving effort in the water squeezing process and achieving better water squeezing effect, and preventing the mop head from turning over when contacting the extrusion component to cause interference between the mop head and the water squeezing frame, thereby ensuring normal water squeezing.

[0023] As a specific design of the rib-groove plug-in guide structure, the above-mentioned rib-groove plug-in guide structure includes a guide groove and a convex rib. When the mop head passes through the extrusion port, the convex rib is inserted into the guide groove and slides in the guide groove; one of the guide groove and the convex rib is arranged on the water squeezing rack, and the other of the guide groove and the convex rib is arranged on the mop head.

[0024] The third technical problem to be solved by the present invention is to provide a double-sided squeezed self-squeezing foam mop in view of the above-mentioned existing technical status, which is not easy to tear the adhesive surface of the foam during the cleaning and squeezing operation.

[0025] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: a self-squeezing foam mop, including a mop rod and a mop head rotatably connected to the lower end of the mop rod, the bottom surface of the mop head is directly or indirectly bonded with foam, and is characterized in that it also includes the aforementioned squeezing device, and the squeezing frame is arranged on the mop rod and can slide up and down along the mop rod.

[0026] Compared with the prior art, the advantages of the present invention are: there are two groups of squeezing components and they are arranged in pairs with a front and back interval, each group of squeezing components (such as squeezing rollers) can be one or more, and the squeezing components arranged in pairs squeeze water on the front and back sides of the foam along the length direction of the foam. Compared with unilateral squeezing, the squeezing distance is smaller for the simultaneous squeezing of both sides, and the squeezing resistance can also be reduced. More importantly, the squeezing components can be arranged in the squeezing frame relative to the squeezing frame. When squeezing water, the foam and / or the mop head first cause the squeezing components to move, and a squeezing channel is formed between the squeezing components after the movement. When the foam passes through the squeezing channel and is squeezed by the squeezing channel, the squeezing force of the squeezing channel on the outer ends of the foam is greater than the squeezing force on the inner ends of the foam, thereby avoiding the tearing of the bonding surface of the foam. In addition, when squeezing water, the two squeezing components squeeze the front and back sides of the foam, and at the same time, there is also a squeezing component force on the foam toward the mop head, thereby further avoiding the tearing of the bonding surface of the foam, thereby effectively protecting the bonding degree between the foam and the mop head. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the cleaning tool of the present invention (cleaning state);

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the first embodiment of the cleaning tool of the present invention (in the water squeezing state);

[0029] Figure 3 A cross-sectional view of a first embodiment of the cleaning tool of the present invention (in a water squeezing state);

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the cleaning barrel part of the first embodiment of the cleaning tool of the present invention;

[0031] Figure 5 A cross-sectional view of a cleaning barrel portion of a first embodiment of a cleaning tool of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the water squeeze frame part of the first embodiment of the cleaning tool of the present invention;

[0033] Figure 7 It is a partial three-dimensional exploded view of the water squeeze frame part of the first embodiment of the cleaning tool of the present invention;

[0034] Figure 8 A schematic diagram of the position change of the water squeezing component in the second embodiment of the cleaning tool of the present invention;

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the water squeezing device in the third embodiment of the cleaning tool of the present invention (water squeezing state);

[0036] Fig.10 A cross-sectional view of a water squeezing device in a third embodiment of a cleaning tool of the present invention (in water squeezing state);

[0037] Fig.11 is a cross-sectional view of a water squeezing device in a third embodiment of a cleaning tool of the present invention (initial state);

[0038] Fig.12 It is a schematic diagram of the position change of the water squeezing component in the fourth embodiment of the cleaning tool of the present invention;

[0039] Fig.13 A partial exploded view of a foam mop used as a cleaning tool of the present invention;

[0040] Fig.14 It is a schematic diagram of the three-dimensional structure of an embodiment of a self-squeezing mop of the present invention;

[0041] Fig.15 It is a three-dimensional schematic diagram of the water squeezing device in the embodiment of the self-squeezing mop of the present invention. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below with reference to the accompanying drawings.

[0043] like Figures 1 to 7 , 13, is a first preferred embodiment of the cleaning tool of the present invention.

[0044] A double-sided extruded foam mop cleaning tool comprises a cleaning bucket 1 and a mop head 3 rotatably connected to the lower end of a mop rod 2, wherein the bottom surface of the mop head 3 is directly or indirectly bonded with foam 4. Fig.13 As shown, the mop head 3 with the foam 4 directly bonded to the bottom surface means that the foam 4 is directly bonded to the bottom plate of the mop head 3, and the mop head 3 with the foam 4 indirectly bonded to the bottom surface means that the foam 4 is first bonded to the mounting plate, and then the mounting plate is detachably connected to the bottom plate of the mop head 3. The mop rod 1 can only swing left and right relative to the mop head 3 and along the length direction of the mop head 3. A water squeezing device is provided on the upper part of the cleaning bucket 1.

[0045] Specifically, the squeezing device includes a squeezing frame 5, which has an extrusion port 51, and an extrusion component 6 is provided in the extrusion port 51. The extrusion component 6 has two groups and is arranged opposite to each other at a front and rear interval to form an extrusion channel X between the two groups. When squeezing water, the mop head 3 rotates to align with the extrusion port 51, and then enters the extrusion port 51, and the opposite extrusion components 6 move along the length direction L of the foam 4 to squeeze water from the front and rear sides 41 of the foam 4.

[0046] The squeezing component 6 is swingably arranged in the squeezing frame 5, that is, the squeezing component 6 swings at one end in the axis Z direction with the other end in the axis Z direction as the swing center O to realize opening and closing. When the mop head 3 passes through the squeezing port 51, the foam 4 causes the squeezing component 6 to swing, and a squeezing channel X is formed between the squeezing components 6 after the swinging, and the squeezing width D1 of the inner end of the squeezing channel X in the direction close to the mop head 3 is greater than the squeezing width D2 of the outer end in the direction away from the mop head 3, and the squeezing side wall X1 between the inner and outer ends of the squeezing channel X is an inclined surface, an arc surface, a wave surface, or a tooth surface. When the foam 4 passes through the squeezing port 51 and is squeezed by the squeezing component 6, the squeezing force of the squeezing component 6 on both sides of the outer end of the foam 4 is greater than the squeezing force on both sides of the inner end of the foam 4.

[0047] The squeezing frame 5 is also provided with an elastic member 7 for restoring the squeezing member 6 to its initial position after the squeezing member 6 has swung. When the mop head 3 passes through the squeezing opening 51 , the foam 4 causes the squeezing member 6 to swing away from its initial position.

[0048] The squeezing component 6 in this embodiment adopts a squeezing roller, which is mounted on a pin 61 and can rotate around its own axis. The pin 61 constitutes the axis Z of the squeezing component 6. One end of the pin 61 is hinged on the water squeezing frame 5 to form a swing center O. The other end of the pin 61 is movably inserted in the strip hole 52 of the water squeezing frame 5 and can slide along the strip hole 52. The elastic member 7 is a tension spring, one end of which is fixed on the water squeezing frame 5 and the other end is connected to the pin 61 exposed to the strip hole 52.

[0049] A rib-groove plug-in guide structure is provided between the water squeezing frame 5 and the mop head 3 , under the action of the rib-groove plug-in guide structure, the mop head 3 moves up and down in the extrusion port 51 along a preset trajectory to prevent the mop head 3 from turning over or deflecting.

[0050] The rib-groove insertion guide structure includes a guide groove 50 and a convex rib 30. When the mop head passes through the extrusion port 51, the convex rib 30 is inserted into the guide groove 50 and slides in the guide groove 50. One of the guide groove 50 and the convex rib 30 is arranged on the water squeezing rack 5, and the other of the guide groove 50 and the convex rib 30 is arranged on the mop head 3.

[0051] The up-down direction in this embodiment refers to the length direction along the mop rod 1 ; the front-back direction refers to the width direction of the foam, and the left-right direction is perpendicular to the front-back direction, that is, along the length direction of the mop head 3 .

[0052] The working principle of the cleaning tool is similar to that of the background patent. The inner end extrusion width D1 of the extrusion channel X in the direction close to the mop head 3 is greater than the outer end extrusion width D2 in the direction away from the mop head 3. When the foam 4 passes through the extrusion port 51 and is squeezed by the extrusion component 6 (extrusion roller), the extrusion force of the extrusion component 6 (extrusion roller) on the outer ends of the foam 4 is greater than the extrusion force on the inner ends of the foam 4, thereby preventing the adhesive surface 40 of the foam 4 from being torn. In addition, when squeezing water, the two extrusion components 6 not only squeeze the front and rear sides of the foam 4, but also have an extrusion component force on the foam 4 in the direction of the mop head 3, further preventing the adhesive surface 40 of the foam 4 from being torn, thereby effectively protecting the adhesion between the foam 4 and the mop head 3.

[0053] like Figure 8 FIG. 2 shows a second preferred embodiment of the cleaning tool of the present invention.

[0054] The difference between this embodiment and the first embodiment is that the extrusion component 6 can also be a fixed block, and protruding pivots 62 are provided at both ends of the fixed block. The pivots 62 constitute the axis Z of the extrusion component 6, and the axis Z is not necessarily the central axis. The pivot 62 on one side of the fixed block is hinged on the water squeezing frame 5 to form a swing center O, and the pivot 62 on the other side of the fixed block is inserted into the strip hole 52 of the water squeezing frame 5 and can slide along the strip hole 52. The extrusion side wall of the fixed block that is squeezed with the foam 4 is an arc surface.

[0055] like Figures 9-11 FIG. 2 shows a third preferred embodiment of the cleaning tool of the present invention.

[0056] The difference between this embodiment and the first embodiment is that the squeezing component 6 can also be arranged in a manner that it can slide forward and backward relative to the squeezing frame, that is, the axis Z of the squeezing component 6 can slide forward and backward, and the sliding amplitude of one end of the axis Z of the squeezing component 6 is greater than the sliding amplitude of the other end of the axis Z of the squeezing component 6, and the squeezing channels X are formed between the squeezing components 6 after sliding. The squeezing frame 5 is also provided with an elastic member 7 for returning the squeezing component 6 to the initial position after sliding. When the mop head 3 passes through the squeezing port 51, the foam 4 causes the squeezing component 6 to swing and leave the initial position.

[0057] The extrusion component 6 is an extrusion roller, which is mounted on a pin 61 and can rotate around its own axis. The pin 61 constitutes the axis Z of the extrusion component 6. One end of the pin 61 is movably inserted in the first strip guide hole 53 on one side of the water squeezing frame 5 and can slide along the first strip guide hole 53. The other end of the pin 61 is movably inserted in the second strip guide hole 54 on the other side of the water squeezing frame 5 and can slide along the second strip guide hole 54. The length of the first strip guide hole 53 is less than the length of the second strip guide hole 54.

[0058] like Figure 8 FIG. 1 is a fourth preferred embodiment of the cleaning tool of the present invention.

[0059] The difference between this embodiment and the third embodiment is that the extrusion component 6 can also be a fixed block, and protruding guide shafts 63 are provided at both ends of the fixed block. The guide shafts 63 constitute the axis Z of the extrusion component 6. The guide shafts 63 on one side of the fixed block are movably inserted in the first strip guide hole 53 on one side of the water squeezing rack 5 and can slide along the first strip guide hole 53. The guide shafts 63 on the other side of the fixed block are movably inserted in the second strip guide hole 54 on the other side of the water squeezing rack 5 and can slide along the second strip guide hole 54. The length of the first strip guide hole 53 is smaller than the length of the second strip guide hole 54.

[0060] like Fig.14 , 15 Shown is an embodiment of the self-squeezing foam mop of the present invention.

[0061] like Fig.13 As shown, a self-squeezing foam mop comprises a mop rod 2 and a mop head 3 rotatably connected to the lower end of the mop rod 2, wherein the bottom surface of the mop head 3 is directly or indirectly bonded with foam 4, and further comprises the squeezing device involved in the first embodiment described above, the difference being that in this embodiment, the squeezing frame 5 is arranged on the mop rod 2 and can slide up and down along the mop rod 2, and the shape of the squeezing frame 5 can be adaptively changed.

[0062] It should be noted that in the description of this embodiment, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A double-sided squeezing water squeezing device, comprising a squeezing frame (5) having an squeezing port (51), wherein the squeezing port (51) is provided with a squeezing component (6), wherein the squeezing component (6) has two groups and is arranged opposite to each other at a front and rear interval, and when squeezing water, a mop head (3) having a foam cotton (4) directly or indirectly bonded to its bottom surface is rotated to align with and pass through the squeezing port (51), and the opposite squeezing components (6) are moved along the length direction (L) of the foam cotton (4) to squeeze water from the front and rear side surfaces (41) of the foam cotton (4); characterized in that: The squeezing component (6) is arranged in the squeezing frame (5) so as to be movable relative to the squeezing frame (5). When squeezing water, the foam (4) and / or the mop head (3) firstly cause the squeezing component (6) to move, and a squeezing channel (X) is formed between the squeezing components (6) after the movement. When the foam (4) passes through the squeezing channel (X) and is squeezed by the squeezing channel (X), the squeezing force of the squeezing channel (X) on both sides of the outer end of the foam (4) is greater than the squeezing force on both sides of the inner end of the foam (4); the squeezing side wall (X1) between the inner end and the outer end of the squeezing channel (X) is an inclined surface, an arc surface, a wave surface or a tooth surface; The squeezing component (6) is swingably arranged in the squeezing frame (5), that is, one end of the squeezing component (6) in the direction of the axis (Z) thereof swings with the other end in the direction of the axis (Z) as the swing center (O) to achieve opening and closing, and the squeezing channel (X) is formed between the squeezing components (6) after the swinging; the squeezing width (D1) of the squeezing channel (X) at the inner end in the direction close to the mop head (3) is greater than the squeezing width (D2) at the outer end in the direction away from the mop head (3); The squeezing component (6) is a squeezing roller, which is sleeved on a pin shaft (61) and can rotate around its own axis. The pin shaft (61) constitutes the axis (Z) of the squeezing component (6). One end of the pin shaft (61) is hinged on the water squeezing frame (5) to form a swing center (O), and the other end of the pin shaft (61) is movably inserted into a strip hole (52) of the water squeezing frame (5) and can slide along the strip hole (52). Alternatively, the squeezing component (6) is a fixed block, and protruding pivots (62) are provided at both ends of the fixed block, and the pivots (62) constitute the axis (Z) of the squeezing component (6). The pivot (62) on one side of the fixed block is hinged on the water squeezing frame (5) to form a swing center (O), and the pivot (62) on the other side of the fixed block is inserted into the strip hole (52) of the water squeezing frame (5) and can slide along the strip hole (52).

2. The double-side squeezing water squeezing device according to claim 1, characterized in that: The squeezing rack (5) is also provided with an elastic member (7) for returning the squeezing member (6) to its initial position after being swung. When the mop head (3) passes through the squeezing opening (51), the foam (4) and / or the mop head (3) cause the squeezing member (6) to swing away from its initial position.

3. A double-side squeezing water squeezing device, comprising a squeezing frame (5) having an squeezing port (51), wherein the squeezing port (51) is provided with a squeezing component (6), wherein the squeezing component (6) has two groups and is arranged opposite to each other at a front and rear interval. When squeezing water, a mop head (3) having a foam (4) directly or indirectly bonded to its bottom surface is rotated to align with and pass through the squeezing port (51), and the opposite squeezing components (6) are moved along the length direction (L) of the foam (4) to squeeze water from the front and rear side surfaces (41) of the foam (4); the characteristics are as follows: The squeezing component (6) is arranged in the squeezing frame (5) so as to be movable relative to the squeezing frame (5). When squeezing water, the foam (4) and / or the mop head (3) firstly cause the squeezing component (6) to move, and a squeezing channel (X) is formed between the squeezing components (6) after the movement. When the foam (4) passes through the squeezing channel (X) and is squeezed by the squeezing channel (X), the squeezing force of the squeezing channel (X) on both sides of the outer end of the foam (4) is greater than the squeezing force on both sides of the inner end of the foam (4); the squeezing side wall (X1) between the inner end and the outer end of the squeezing channel (X) is an inclined surface, an arc surface, a wave surface or a tooth surface; The extrusion component (6) can slide forward and backward relative to the water squeezing frame, that is, the axis (Z) of the extrusion component (6) can slide forward and backward, and the sliding amplitude of one end of the axis (Z) of the extrusion component (6) is greater than the sliding amplitude of the other end of the axis (Z) of the extrusion component (6), and the extrusion channel (X) is formed between the extrusion components (6) after sliding; The squeezing frame (5) is also provided with an elastic member (7) for returning the squeezing member (6) to its initial position after sliding. When the mop head (3) passes through the squeezing opening (51), the foam (4) and / or the mop head (3) cause the squeezing member (6) to swing away from its initial position. The squeezing component (6) is a squeezing roller, which is sleeved on a pin shaft (61) and can rotate around its own axis. The pin shaft (61) constitutes the axis (Z) of the squeezing component (6). One end of the pin shaft (61) is movably inserted into a first strip guide hole (53) on one side of the water squeezing rack (5) and can slide along the first strip guide hole (53). The other end of the pin shaft (61) is movably inserted into a second strip guide hole (54) on the other side of the water squeezing rack (5) and can slide along the second strip guide hole (54). The length of the first strip guide hole (53) is smaller than the length of the second strip guide hole (54). Alternatively, the extrusion component (6) is a fixed block, and protruding guide shafts (63) are provided at both ends of the fixed block, and the guide shafts (63) constitute the axis (Z) of the extrusion component (6). The guide shaft (63) on one side of the fixed block is movably inserted into a first strip guide hole (53) on one side of the water squeezing rack (5) and can slide along the first strip guide hole (53). The guide shaft (63) on the other side of the fixed block is movably inserted into a second strip guide hole (54) on the other side of the water squeezing rack (5) and can slide along the second strip guide hole (54). The length of the first strip guide hole (53) is smaller than the length of the second strip guide hole (54).

4. A cleaning tool, comprising a cleaning bucket (1) and a mop head (3) rotatably connected to the lower end of a mop rod (2), wherein a foam (4) is directly or indirectly bonded to the bottom surface of the mop head (3), characterized in that: It also comprises a water squeezing device as claimed in any one of claims 1 to 3, wherein the water squeezing frame is arranged on the cleaning bucket (1); and the mop rod (2) can only swing left and right relative to the mop head (3) and along the length direction of the mop head (3).

5. The cleaning tool according to claim 4, characterized in that: A rib-groove plug-in guide structure is provided between the water squeezing frame (5) and the mop head (3). Under the action of the rib-groove plug-in guide structure, the mop head (3) moves up and down along a preset track in the extrusion opening (51) to prevent the mop head (3) from turning over or deflecting. The rib-groove plug-in guide structure comprises a guide groove (50) and a convex rib (30). When the mop head passes through the extrusion opening (51), the convex rib (30) is inserted into the guide groove (50) and slides in the guide groove (50). One of the guide groove (50) and the convex rib (30) is provided on the water squeezing frame (5), and the other of the guide groove (50) and the convex rib (30) is provided on the mop head (3).

6. A self-squeezing foam mop, comprising a mop rod (2) and a mop head (3) rotatably connected to the lower end of the mop rod (2), wherein the bottom surface of the mop head (3) is directly or indirectly bonded with foam (4), characterized in that: It also comprises a water squeezing device as claimed in any one of claims 1 to 3, wherein the water squeezing frame (5) is arranged on the mop rod (2) and can slide up and down along the mop rod (2).

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