Hand-washing-free mop wiping mechanism

Abstract

The utility model belongs to the technical field of cleaning supplies, and discloses a hand-washing-free mop scraping-drying mechanism which is arranged on a stroking opening in the bottom of a water scraping sleeve frame of a flat mop and comprises a stroking opening outer frame, a scraping plate and a supporting roller, and the stroking opening outer frame is of a U-shaped plastic structure and is arranged on a stroking opening base at the bottom of the water scraping sleeve frame through a screw buckle; the scraping plate is arranged on the inner side wall, facing the mop pad, of the stroking opening outer frame, arc sliding blocks are arranged at the two ends of the scraping plate, and arc guide grooves for guiding the arc sliding blocks to slide are formed in the narrow side wall of the stroking opening outer frame. And the supporting roller is arranged on the inner side wall of the stroking opening outer frame, and the supporting roller supports the middle of the back face of the scraping plate. According to the utility model, the structural strength of the scraper is high, and the mop pad of the flat plate of the mop can be fully and uniformly scraped dry.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning article technical field especially relates to a hand -free washing mop scraping dry mechanism. BACKGROUND

[0002] Flat mop, also known as flat mop, is a cleaning tool gradually popular in recent years. Its design features are to use a large area of cleaning cloth or mop pad to contact the ground, wipe and clean. The existing market hand -free washing flat mop: one is to set the fixed structure water scraping frame on the top of the scraping cylinder of the matched cleaning bucket, another is to set the water scraping sleeve frame that can be pushed and pulled up and down on the mop handle, and the water scraping sleeve frame is scraped dry and dehydrated through the bottom of the rolling mouth part to the flat mop pad. For the water scraping sleeve frame type mop, the water scraping principle is to remove the excess water and stains on the flat mop pad through the inner scraping plate of the rolling mouth part.

[0003] However, the inner scraping plate of the bottom of the existing water scraping sleeve frame rolling mouth part is often fixed, and the fixed scraping plate is also more laborious when returning. At present, the shaft installation type scraping plate also appears on the market, that is, the scraping plate is connected with the insertion hole on the top cover through the protruding cylindrical shaft head at both ends, so that the scraping plate can swing, when the water scraping sleeve frame is pressed down, the scraping plate is pressed tightly to the mop pad, so as to realize the squeezing dry, when the water scraping sleeve frame is pulled up, the scraping plate is away from the mop pad, so as to facilitate the exposure of the flat mop. However, the cooperation between the shaft head and the insertion hole is relatively weak, and the shaft head is easy to break in the reciprocating stress process, and the middle support of the scraping plate is insufficient, so that the middle part of the mop pad is not fully squeezed dry.

[0004] Therefore, it is necessary to develop a hand -free washing mop scraping dry mechanism for the above -mentioned defects. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a hand -free washing mop scraping dry mechanism, the structural strength of the scraping plate is large, and the flat mop pad of the flat mop can be scraped dry fully and uniformly.

[0006] In order to solve the above -mentioned technical problems, the utility model adopts the following technical scheme:

[0007] The hand -free washing mop scraping dry mechanism of the utility model is arranged on the rolling mouth of the water scraping sleeve frame of the flat mop, and comprises a rolling mouth outer frame, a scraping plate and a supporting roller, the rolling mouth outer frame is a U-shaped plastic structure and is arranged on the rolling mouth base of the bottom of the water scraping sleeve frame through a screw, the scraping plate is arranged on the inner side wall of the rolling mouth outer frame facing the mop pad, the both ends of the scraping plate are provided with arc sliding blocks, and the narrow side wall of the rolling mouth outer frame is provided with arc guide grooves for guiding the sliding of the arc sliding blocks, and the supporting roller is arranged on the inner side wall of the rolling mouth outer frame, and the supporting roller supports the middle part of the back surface of the scraping plate.

[0008] Further, the cross section of the scraper is inverted U-shaped, the main plate of the scraper is horizontally and parallel provided with an upper scraper strip and a lower scraper strip on the side facing the mop pad, and the upper scraper strip and the lower scraper strip can contact the large surface of the mop pad.

[0009] Further, a plurality of inner rib plates are arranged in the groove between the upper scraper strip and the lower scraper strip, and a plurality of water permeable holes are formed in the bottom of the groove.

[0010] Further, the back of the main plate of the scraper is provided with an arc-shaped surface, and the arc-shaped surface is adapted to abut against the outer edge of the supporting roller.

[0011] Further, the number of the supporting rollers is two or more, and the two or more supporting rollers are equidistantly arranged along the length direction of the scraper.

[0012] Further, a plurality of upper rib plates are arranged between the inner side wall of the outer frame and the top part of the flange, a plurality of drainage openings are vertically formed in the inner side wall of the outer frame between adjacent upper rib plates, and the central shaft of the supporting roller is clamped in the clamping groove of two adjacent upper rib plates.

[0013] Further, the center of the arc-shaped guide groove coincides with the central axis of the supporting roller.

[0014] Further, a guide shallow groove is formed in the inner side wall of the narrow side of the outer frame on the side of the arc-shaped guide groove facing the mop pad.

[0015] Further, the utility model also comprises a foreign matter removing roller, the foreign matter removing roller is parallelly arranged below the scraper, shaft heads at two ends of the foreign matter removing roller are inserted into the shaft hole on the narrow side inner wall of the outer frame, and the hollow roller surface of the foreign matter removing roller rolls and contacts the mop pad.

[0016] Further, the inner side wall of the outer frame on the side facing the mop pad is provided with an inwardly bent scraping tooth part, the scraping tooth part comprises a row of scraping teeth, and the tip of the scraping tooth is inserted into the wool surface of the mop pad.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] The utility model discloses a hand-washing-free mop scraper drying mechanism, through the cooperation of the arc slider and the arc guide groove, the scraper is guaranteed to slide within the set range, and the action of contacting and separating from the mop pad of the mop flat plate is realized; the cross-sectional area of the arc slider is large in the pivot mode, and the strength is large, so that the arc slider will not be broken and damaged. The central part of the back of the scraper is supported by the supporting roller, so that the stress of the scraper during the water scraping process is not deformed, and the uniformity of the scraping drying effect in the whole width direction of the mop pad is improved. The hand-washing-free mop scraper drying mechanism has large structural strength of the scraper, and can fully and uniformly scrape and dry the mop pad of the mop flat plate.

[0019] Furthermore, by setting the upper and lower squeegee strips on the side of the squeegee towards the mop pad, the two extrusions can be performed simultaneously, achieving better dewatering effect. The inner rib plate increases the connection strength between the upper and lower squeegee strips, and the water-permeable holes can smoothly discharge the secondary extruded sewage of the upper squeegee strip backward. By setting the back surface of the squeegee as an arc surface matching the outer edge of the supporting roller, the supporting area of the supporting roller is increased, and the supporting strength is large. By setting two or more supporting rollers in the length direction of the squeegee, the squeegee can be more evenly supported. By additionally setting the upper rib plate, the strength of the outer frame of the squeegee is increased, and the clamping groove can clamp the central shaft of the supporting roller, facilitating the replacement and maintenance in the later period. The center of the arc guide groove coincides with the central axis of the supporting roller, ensuring smooth movement of the squeegee, and the supporting roller can stably support at any position during the movement. By additionally setting the guide shallow groove outside the arc guide groove, the arc sliding block at both ends of the squeegee is guided during installation of the squeegee, so that the squeegee is accurately positioned. By additionally setting the impurity removing roller, solid impurities on the surface of the mop pad can be removed when the mop pad is rolled and contacted with the surface of the mop pad. By setting the squeezer teeth at the bottom of the squeegee outer frame, the squeezer teeth are inserted into the mop pad surface, and the hair or fiber impurities adhered to the surface of the mop pad or embedded can be removed. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described in connection with the drawings.

[0021] Figure 1 It is the main view structural schematic drawing of hand-washing-free mop with the squeegee drying mechanism of the utility model;

[0022] Figure 2 It is the three-dimensional structural schematic drawing of squeegee drying mechanism of hand-washing-free mop of the utility model;

[0023] Figure 3 It is the sectional view structural schematic drawing of squeegee drying mechanism of hand-washing-free mop of the utility model;

[0024] Figure 4 It is the three-dimensional structural schematic drawing of hand-washing-free mop of the utility model after removing the squeegee and the impurity removing roller;

[0025] Figure 5 It is the three-dimensional structural schematic drawing of squeegee of the utility model.

[0026] The drawings are explained as follows: 1, mop handle; 2, squeegee sleeve frame; 201, squeezer base; 3, handle supporting plate; 4, squeezer outer frame; 401, countersunk bolt through hole; 402, squeezer teeth; 403, drain port; 404, upper rib plate; 405, arc guide groove; 406, shaft hole; 5, squeegee; 501, arc sliding block; 502, upper squeegee strip; 503, lower squeegee strip; 504, inner rib plate; 6, supporting roller; 7, impurity removing roller. DETAILED DESCRIPTION

[0027] The core of the utility model is to provide a kind of hand-washing-free mop scraping dry mechanism, and the structural strength of the scraper is large, and the mop cloth pad of mop flat plate can be fully and evenly scraped dry.

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] Referring to the drawings, Figure 1 It is a front view structural schematic diagram of hand-washing-free mop with the scraping dry mechanism of the utility model; Figure 2 It is a three-dimensional structural schematic diagram of the scraping dry mechanism of hand-washing-free mop of the utility model; Figure 3 It is a cross-sectional structural schematic diagram of the scraping dry mechanism of hand-washing-free mop of the utility model; Figure 4 It is a three-dimensional structural schematic diagram of the utility model after removing the scraper and the impurity removing roller; Figure 5 It is a three-dimensional structural schematic diagram of the scraper of the utility model.

[0031] In a specific embodiment, as shown in the drawings, Figures 1 to 5 The scraping dry mechanism of hand-washing-free mop of the utility model is arranged on the bottom of the water scraping sleeve frame 2 of flat mop, and can extrude and dehydrate the mop cloth pad on the mop flat plate 3. The scraping dry mechanism of hand-washing-free mop of the utility model comprises a roll mouth outer frame 4, a scraper 5 and a supporting roller 6. The roll mouth outer frame 4 is a U-shaped plastic structure and is arranged on the roll mouth base 201 at the bottom of the water scraping sleeve frame 2 through a screw. The roll mouth outer frame 4 is provided with a countersunk bolt through hole 401 at both ends, and the screw is connected to the threaded hole of the roll mouth base 201 through the countersunk bolt through hole 401. The scraper 5 is arranged on the inner side wall of the roll mouth outer frame 4 facing the mop cloth pad, and the both ends of the scraper 5 are respectively provided with arc sliding blocks 501, and the narrow side wall of the roll mouth outer frame 4 is provided with arc guide grooves 405 for guiding the sliding of the arc sliding blocks 501. The supporting roller 6 is installed on the inner side wall of the roll mouth outer frame 4, and the supporting roller 6 supports the middle part of the back surface of the scraper 5. The axis of the supporting roller 6 is parallel to the length direction of the scraper 5.

[0032] By the cooperation of the arc sliding block 501 and the arc guide groove 405, it is ensured that the squeegee 5 slides within a set range, realizes the action of contacting and separating from the mop pad of the mop plate 3; relative to the pivot mode, the cross-sectional area of the arc sliding block 501 is large, and the strength is large, and breakage damage does not occur. By supporting the middle part of the back of the squeegee 5 through the supporting roller 6, it is ensured that the squeegee 5 is not deformed under stress during the squeegee process, and the uniformity of the squeegee effect in the entire width direction of the mop pad is improved. The utility model discloses a hand-washing-free mop squeegee mechanism, and the structural strength of the squeegee is large, and the mop pad of the mop plate can be fully and uniformly squeegeed.

[0033] In a specific embodiment of the utility model, as shown in Figure 3 and Figure 5 , the cross section of the squeegee 5 is an inverted U-shaped type, and the main plate of the squeegee 5 is horizontally and parallelly provided with an upper squeegee strip 502 and a lower squeegee strip 503 on the side facing the mop pad, and the upper squeegee strip 502 and the lower squeegee strip 503 can contact the mop pad.

[0034] Specifically, as shown in Figure 3 , the protruding length of the upper squeegee strip 502 is slightly larger than that of the lower squeegee strip 503 in the squeegee operation state of the squeegee 5. During the process of pushing down the squeegee sleeve frame 2, the lower squeegee strip 503 first contacts the mop pad to preliminarily squeeze and dehydrate, and the upper squeegee strip 502 secondarily and deeply squeezes to secondarily dehydrate, so that a better dehydration effect can be achieved.

[0035] Specifically, as shown in Figure 3 and Figure 5 , a plurality of inner rib plates 504 are arranged in the groove between the upper squeegee strip 502 and the lower squeegee strip 503, and the plurality of inner rib plates 504 are arranged at equal intervals along the length direction of the squeegee 5. A plurality of water permeable holes are formed in the bottom of the groove.

[0036] By arranging the upper squeegee strip 502 and the lower squeegee strip 503 on the side of the squeegee 5 facing the mop pad, twice squeezing can be simultaneously performed, and a better dehydration effect can be achieved. The inner rib plates 504 increase the connecting strength between the upper squeegee strip 502 and the lower squeegee strip 503, and the arrangement of the water permeable holes can smoothly discharge the sewage squeezed by the upper squeegee strip 502 backward.

[0037] In a specific embodiment of the utility model, as shown in Figure 3 , the back of the main plate of the squeegee 5 is provided with an arc-shaped surface, and the arc-shaped surface is adapted to abut against the outer edge of the supporting roller 6.

[0038] By arranging the back of the squeegee 5 as an arc-shaped surface adapted to the outer edge of the supporting roller 6, the supporting area of the supporting roller 6 is increased, and the supporting strength is large.

[0039] In a specific embodiment of the utility model, asFigure 2 and Figure 3 As shown, there are two or more support rollers 6, and the two or more support rollers 6 are evenly spaced along the length of the scraper 5.

[0040] Specifically, such as Figures 2 to 4 As shown, multiple upper stiffening plates 404 are provided between the inner wall and the top flange of the outer frame 4. The upper stiffening plates 404 are right-angled trapezoids. A drain outlet 403 is vertically provided between adjacent upper stiffening plates 404 on the inner wall of the outer frame 4. The drain outlet 403 is an elongated, waist-shaped hole. The central shaft of the support roller 6 is fitted into the slots of two adjacent upper stiffening plates 404.

[0041] Specifically, such as Figure 4 As shown, the center of the arc guide groove 405 coincides with the center line of the central axis of the support roller 6, and the arc slider 501 and the arc guide groove 405 are adapted to each other.

[0042] Specifically, such as Figures 2 to 4 As shown, the narrow inner wall of the outer frame 4 of the squeegee has a shallow guide groove on the side of the arc guide groove 405 facing the mop pad.

[0043] By setting two or more support rollers 6 along the length of the scraper 5, the scraper 5 can be supported more evenly. The addition of an upper stiffener 404 increases the strength of the outer frame 4, and the slots allow for the engagement of the central shaft of the support rollers 6, facilitating future replacement and maintenance. The center of the arc guide groove 405 coincides with the central axis of the support rollers 6, ensuring smooth operation of the scraper 5 and stable support of the support rollers 6 at any position during operation. The addition of a shallow guide groove on the outside of the arc guide groove 405 facilitates the guidance of the arc sliders 501 at both ends of the scraper 5 during installation, ensuring accurate placement.

[0044] In one specific embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the hands-free mop drying mechanism of this utility model also includes a cleaning roller 7, which is arranged parallel to the bottom of the scraper 5. The shaft ends of the cleaning roller 7 are inserted into the shaft holes 406 on the narrow inner wall of the outer frame 4 of the scraper. The hollow roller surface of the cleaning roller 7 rolls in contact with the mop pad. That is to say, the roller surface of the cleaning roller 7 has grooves arranged on it, which can accommodate solid dirt from the mop pad.

[0045] By adding a cleaning roller 7, solid dirt on the surface of the mop pad can be removed when it rolls and contacts the surface of the mop pad.

[0046] In one specific embodiment of this utility model, such as Figure 2 and Figure 3As shown, the strip-shaped outer frame 4 is provided with an inwardly bent scraping tooth part at the bottom edge of the inner side wall of the mop pad, which comprises a row of scraping teeth 402, the tips of which are inserted into the surface of the mop pad.

[0047] By arranging the scraping tooth part at the bottom of the strip-shaped outer frame 4, the tips of the scraping teeth 402 are inserted into the surface of the mop pad, so that the hair or fiber impurities adhered to or embedded in the surface of the mop pad can be removed.

[0048] The use process of the hand-washing-free mop scraping and drying mechanism is as follows: after the mop plate 3 and the mop pad thereon are washed in the cleaning barrel, they need to be squeezed dry. At this time, first, the plate 3 is erected in the same direction as the mop handle 1, the operator holds the mop handle 1 with the left hand, and pushes the scraping sleeve frame 2 downward with the right hand, and the strip-shaped bottom of the scraping sleeve frame 2 slowly sweeps over the plate 3. During this process, the tips of the scraping teeth 402 are inserted into the surface of the mop pad, and when the surface of the mop pad is passed, the hair or fiber impurities adhered to or embedded in the surface of the mop pad are removed. The impurity removing roller 7 contacts the surface of the mop pad and is driven to roll, and the roller surface groove of the impurity removing roller 7 removes the solid impurities of the mop pad. The lower scraping plate strip 503 first contacts the mop pad and is driven by the mop pad, the arc sliding block 501 slides upward along the arc guide groove 405 until the limiting position, and at the same time, the back of the scraping plate 5 slides on the outer edge of the supporting roller 6 or rotates around the shaft with the supporting roller 6. The lower scraping plate strip 503 first contacts the mop pad to preliminarily squeeze and dehydrate, and the upper scraping plate strip 502 secondarily deeply squeezes and dehydrates, so that a better dehydration effect can be achieved. After dehydration, the right hand pulls the scraping sleeve frame 2 upward to reset, and during the resetting process, the upper scraping plate strip 502 is pushed downward by the mop pad, the arc sliding block 501 slides downward along the arc guide groove 405, and the scraping plate 5 is separated from the surface of the mop pad, so that the resetting is more labor-saving.

[0049] In summary, the utility model discloses hand -free washing mop scraping dry mechanism, through the cooperation of arc slider 501 and arc guide groove 405, guarantee that the scraper 5 slides in the set range, realize the action of contact and the separation of mop flat plate 3's mop pad, relative to the cross -section area of pivot mode arc slider 501, the strength is big, will not break down. Through the middle support of support roller 6 to the back of scraper 5, guarantee that the scraper 5 does not deform in the stress of scraping water process, improve the uniformity of scraping dry effect in the whole mop pad width direction. The utility model discloses hand -free washing mop scraping dry mechanism, the structural strength of scraper is big, can scrape dry the mop pad of mop flat plate fully and evenly. In addition, through setting upper scraper strip 502 and lower scraper strip 503 on the side of scraper 5 towards the mop pad, can carry out twice extrusion simultaneously, obtain better dewatering effect. Inner rib plate 504 increases the connecting strength between upper scraper strip 502 and lower scraper strip 503, and the setting of the water -permeable hole can discharge the sewage of the secondary extrusion of upper scraper strip 502 rearward smoothly. By setting the back of scraper 5 as the arc surface that adapts with the outer edge of support roller 6, increase the support area of support roller 6, and the support strength is big. By setting more than two support rollers 6 in the length direction of scraper 5, the scraper 5 can be supported more evenly. By adding upper rib plate 404, the strength of the mouth of the outer frame 4 is increased, and the clamping groove can be clamped with the central shaft of the support roller 6, which is convenient for replacement and maintenance. The center of arc guide groove 405 is coincided with the central axis of support roller 6, which ensures the smooth action of scraper 5, and the support roller 6 can be stably supported at any position during the action. By adding the impurity removing roller 7, the solid-state dirt on the surface of the mop pad can be removed when rolling and contacting the surface of the mop pad. By setting the scraping tooth part on the bottom of the mouth of the outer frame 4, the sharp end of the scraping tooth 402 is inserted into the wool surface of the mop pad, which can remove the hair or fiber impurities attached to the surface of the mop pad or embedded.

[0050] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0051] The above-described embodiments only describe the preferred mode of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements of the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A hands-free mop wringer mechanism, provided on the bottom of the mop wringer (2) of a flat mop, characterized in that, The utility model provides a kind of mop, including the outer frame (4) of straightening mouth, squeegee (5) and support roller (6), the outer frame (4) of straightening mouth is U-shaped plastic structure and is set on the straightening mouth base (201) of the bottom of water squeegee cover frame (2) by screw; The squeegee (5) is arranged on the inner side wall of the outer frame (4) of straightening mouth towards mop pad, both ends of the squeegee (5) are provided with arc slider (501), the narrow side wall of the outer frame (4) of straightening mouth is provided with arc guide groove (405) for guiding the sliding of the arc slider (501);The support roller (6) is arranged on the inner side wall of the outer frame (4) of straightening mouth, and the support roller (6) supports the back of the squeegee (5) in the middle.

2. The hands-free mop squeegee drying mechanism of claim 1, wherein, The cross section of the squeegee (5) is inverted U-shaped, and the main plate of the squeegee (5) is horizontally parallel to the side of the mop pad and provided with an upper squeegee strip (502) and a lower squeegee strip (503), and the upper squeegee strip (502) and the lower squeegee strip (503) can be in contact with the large surface of the mop pad.

3. The hands-free mop squeegee drying mechanism of claim 2, wherein, A plurality of inner rib plates (504) are arranged in the groove between the upper squeegee strip (502) and the lower squeegee strip (503), and a plurality of water-permeable holes are formed in the bottom of the groove.

4. The hands-free mop squeegee drying mechanism of claim 1, wherein, The back of the main plate of the squeegee (5) is provided with an arc surface, and the arc surface is adapted to abut against the outer edge of the support roller (6).

5. A hands-free mop wringer mechanism according to any one of claims 1 to 4, wherein, The number of the support roller (6) is more than two, and the two or more support rollers (6) are arranged at equal intervals along the length direction of the squeegee (5).

6. The hands-free mop squeegee drying mechanism of claim 5, wherein, A plurality of upper rib plates (404) are arranged between the inner side wall and the top flange of the outer frame (4) of straightening mouth, a plurality of drainage openings (403) are vertically formed in the inner side wall of the outer frame (4) of straightening mouth between adjacent upper rib plates (404), and the central shaft of the support roller (6) is clamped in the clamping groove of two adjacent upper rib plates (404).

7. The hands-free mop squeegee drying mechanism of claim 6, wherein, The center of the arc guide groove (405) coincides with the central axis of the support roller (6).

8. The hands-free mop squeegee drying mechanism of claim 7, wherein, A guide shallow groove is formed in the narrow inner wall of the outer frame (4) of straightening mouth on the side of the arc guide groove (405) towards the mop pad.

9. The hands-free mop squeegee drying mechanism of claim 1, wherein, A foreign matter removing roller (7) is further arranged below the squeegee (5), the shaft head of the two ends of the foreign matter removing roller (7) is inserted into the shaft hole (406) on the narrow inner wall of the outer frame (4) of straightening mouth, and the hollow roller surface of the foreign matter removing roller (7) rolls and contacts the mop pad.

10. The hands-free mop squeegee drying mechanism of claim 9, wherein, The inner side wall of the outer frame (4) of straightening mouth towards the mop pad is provided with a scraping tooth part bent inward, and the scraping tooth part includes a row of scraping teeth (402), and the tip of the scraping tooth (402) is inserted into the pile surface of the mop pad.

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