CN218247133U - Mop head capable of scraping water stains - Google Patents

Abstract

The utility model discloses a mop head capable of scraping water stains, which comprises a mop plate and a connector movably connected at the back side of the mop plate, wherein a scraping strip is arranged along the length direction of the mop plate, the scraping strip is arranged at the edge of the mop plate and protrudes out of the edge of the back side of the mop plate or protrudes out of the side edge of the mop plate, and the scraping strip is fixedly connected with the mop plate through injection molding on the mop plate; the mop plate back side is equipped with the articulated shaft, the connector passes through the articulated shaft and rotates the setting on the mop plate be equipped with the fastener on the connector, be equipped with on mop plate or articulated shaft with fastener complex locator card, the connector rotates and drives the fastener and rotate, when the fastener rotates to the locator card, the locator card blocks the fastener and further rotates, and then blocks the connector and rotate. This can scrape water stained mop head can realize that ground or glass surface water stained quick scraping is got rid of, scrapes the strip maintenance simple, reliable, and the equipment is convenient, scrapes the strip and can effectively remain with the mop pole, and the mop board is difficult for overturning.

Description

Mop head capable of scraping water stains

Technical Field

The utility model belongs to the technical field of dull and stereotyped mop technique and specifically relates to indicate a can scrape water stain mop head.

Background

A mop is a long handled cleaning tool for scrubbing floors or glass. The existing flat mop has a similar structure and comprises a mop rod, a connector and a mop plate movably connected with the connector, wherein the mop plate is provided with a wiper which is used for scrubbing the ground or glass. When the dehydration degree of the wiping material is higher, the wet and clean area of the wiping material is very limited, and when the dehydration degree of the wiping material is lower, although the wet and clean area can be effectively increased, the problem that water stains are remained on the ground is faced, and pedestrians or operators slip and fall easily. In addition, in the case of a floor with sewage or water stains, the wiper needs to absorb the sewage or water stains and further dehydrate or even clean the wiper, so that the labor intensity is high, and the operation is complicated, time-consuming and labor-consuming. In addition, the existing flat mop generally has poor glass wiping effect, but the reason is that the glass water stain can not be quickly removed conveniently, and the wiping effect of the wiping material is far less than the scraping effect of the window wiper. For further promoting consumer's use experience, make the mop possess the scraping effect, make it can be quick clear away the water stain on ground and the glass, the product of installation scraping strip has appeared on the mop board, the scraping strip of this kind of product is through setting the mop board to upper and lower two-layer components of a whole that can function independently structure, the scraping strip is lived to the split type mop board centre gripping of utilizing upper and lower two-layer, realize the fixed of scraping strip, this kind of mode has not only increased the installation process and the installation intensity of mop, compare in original individual layer structure and still increased the processing cost of mop board. More importantly, the scraping strip is small in contact area with the ground when in use, the scraping strip can not be stably contacted with the ground and glass like a mop of a mop plate, and the mop rod is flexible to rotate, so that the scraping strip is extremely unstable in the actual use process and is extremely easy to turn over along with the mop plate, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can scrape mop head that water stains, this can scrape mop head that water stains can realize that ground or glass surface water stain quick scraping is got rid of, and the scraping strip maintenance is simple, reliable, and it is convenient to assemble, and the scraping strip can effectively be keeped something with the mop pole, and the mop board is difficult for the upset, and user experience feels good.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a mop head capable of scraping water stains comprises a mop plate and a connector movably connected to the back side of the mop plate, wherein scraping strips are arranged along the length direction of the mop plate, are arranged at the edge of the mop plate and protrude out of the back side edge of the mop plate or protrude out of the side edge of the mop plate, and are fixedly connected with the mop plate through injection molding on the mop plate; mop board back side is equipped with the articulated shaft, the connector passes through the articulated shaft and rotates the setting on the mop board be equipped with the fastener on the connector, be equipped with on mop board or articulated shaft with fastener complex locator card, the connector rotates and drives the fastener and rotate, when the fastener rotates to the locator card, the locator card blocks that the fastener further rotates, and then blocks the connector and rotate, thereby connector and/or fastener take place elastic deformation and overcome blockking of locator card.

Preferably, be equipped with the first articulated position that the cross-section is the ring form basically on the connector, leave the opening that the size is less than the articulated shaft on first articulated position, extend along the opening both sides and have the baffle, two baffles distance is increased to far away first articulated position by nearly first articulated position gradually, and first articulated position is connected with the articulated shaft rotation.

Preferably, the scraping strip is arranged on the back side of the mop plate, a second hinge position is further arranged on the connecting head, the second hinge position is basically vertical to the first hinge position, and the second hinge position is connected with an external mop rod.

Preferably, the locator card comprises a barrier strip disposed on the mop plate.

Preferably, the fastener does the baffle, the baffle is followed the connector is rotatory, when baffle one side rotates to the blend stop, the blend stop baffle further rotates, and then blocks the connector and rotate, thereby connector and/or baffle take place elastic deformation and overcome blockking of blend stop, after blockking of blend stop is overcome to the baffle, the baffle opposite side can support on the blend stop.

Preferably, the baffle outside is equipped with the card strip, the fastener includes the card strip, the card strip is followed the connector is rotatory, when the card strip rotates to the blend stop, the blend stop card strip further rotates, and then blocks the connector and rotate, thereby connector and/or card strip take place elastic deformation and overcome blockking of blend stop, overcome blockking back of blend stop when the card strip, the card strip can support on the blend stop.

Preferably, the clamping strip is arranged at the lower edge of the baffle.

Preferably, the clamping strip is arranged in the middle or the middle lower part of the baffle.

Preferably, the edge of the mop plate is provided with a strip-shaped scraping strip supporting protrusion, two sides of the scraping strip supporting protrusion are provided with scraping strip supporting surfaces, the scraping strips are fixed on the scraping strip supporting protrusion and the scraping strip supporting surfaces, and the bottom shape of the scraping strip is matched with the scraping strip supporting protrusion and the scraping strip supporting surfaces.

Preferably, a transition groove with the diameter larger than that of the hinged shaft is formed in the first hinged position, the radian of the transition groove is one sixth to one half of the radian of the first hinged position, an arc-shaped protrusion with the diameter slowly increasing is arranged in the circumferential direction of the hinged shaft, the other side of the arc-shaped protrusion is in transitional connection with the hinged shaft, the radius of the transition groove is larger than that of the arc-shaped protrusion, the first hinged position is matched with the size of the hinged shaft, the clamping piece is the joint of the far transition groove side of the first hinged position and the baffle, the positioning clamp is an arc-shaped protrusion, when the joint of the far transition groove side of the first hinged position and the baffle rotates to the arc-shaped protrusion, the arc-shaped protrusion blocks the connector to further rotate, and the connector is elastically deformed, so that the blocking of the arc-shaped protrusion is overcome and then is fixed on the arc-shaped protrusion.

Further preferably, the arc-shaped protrusion extends along the axial direction of the articulated shaft for a length not more than one third of the total length of the articulated shaft, and a detachable wiping object is arranged on the back side of the mop plate.

Among the above-mentioned technical scheme, the scraping strip is through secondary injection moulding on the mop board, realizes scraping strip and mop board's integrative fixed connection, and the scraping strip maintenance is simple, reliable, and the mop head equipment is convenient, and is unrestricted to mop board individual layer or bilayer structure. The strip-shaped scraping strip supporting bulges are arranged, and the scraping strip supporting surfaces are reserved on the two sides of the scraping strip supporting bulges, so that the contact area between the scraping strip and the mop plate is increased, and the fixation reliability of the scraping strip is further improved. Through set up the fastener on the connector, be equipped with on mop board or articulated shaft with fastener complex locator card, the connector rotates and drives the fastener and rotate, and when the fastener rotated to the locator card, the locator card blockked the fastener and further rotates, and then blockked the connector and rotate, thereby connector and/or fastener take place elastic deformation and overcome blockking of locator card. When the baffle or the clamping strip overcomes the blocking of the blocking strip, the other side of the baffle or the clamping strip can be propped against the blocking strip; or when the junction of the far transition groove side of the first hinge joint and the baffle rotates to the arc-shaped protrusion, the arc-shaped protrusion blocks the connector from further rotating, the connector is elastically deformed, and then the connector is fixed on the arc-shaped protrusion after the arc-shaped protrusion is blocked, so that the connector and a mop rod connected with the connector can keep the connector and a mop head stable under the blocking effect of the blocking strip, or the inner wall of the first hinge joint enables the connector and the mop head to keep stable under the interference fit with the arc-shaped protrusion, the mop plate is ensured not to be overturned, so that the quick scraping removal of water stains on the ground or the glass surface can be conveniently realized by utilizing the scraping strip protruding out of the back side edge of the mop plate or protruding out of the side edge of the mop plate, and the user experience is greatly improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of the water-scraping mop head;

FIG. 2 is a cross-sectional view of a second embodiment of the water-spreading mop head;

FIG. 3 is a schematic cross-sectional view of a second embodiment of the water-spoonable mop head with the retaining strip resting against the stop strip;

FIG. 4 is a schematic perspective view, partially in section, of a second embodiment of the water-scraping mop head (with the retaining strip not abutting against the blocking strip);

FIG. 5 is a cross-sectional view of a third embodiment of the water-acquisition mop head;

FIG. 6 is a cross-sectional view of a fourth embodiment of the present water-spreading mop head;

FIG. 7 is a cross-sectional view of a fifth embodiment of the present water-spreading mop head;

FIG. 8 is a schematic view, partly in section, showing a perspective view, of a fifth embodiment (when the joint is not fixed to the arc-shaped protrusion) of the water-scraping mop head;

FIG. 9 is an enlarged partial view of a fifth embodiment of the present water-spreading mop head;

FIG. 10 is an exploded view of a fifth embodiment of the present water-spreadable mop head;

fig. 11 is a schematic view of a fifth embodiment of the connecting head of the water-scraping mop head.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in figures 1 to 11, the mop head capable of scraping water stains comprises a mop plate 1 and a connector 2 movably connected to the back side of the mop plate 1, wherein a scraping strip 3 is arranged on the back side of the mop plate 1 along the length direction of the mop plate 1, the scraping strip 3 is arranged at the edge of the mop plate 1 and protrudes out of the back side edge plane of the mop plate 1 or protrudes out of the side edge plane of the mop plate 1, so that water stains on the ground or glass are scraped by the scraping strip 3, and a detachable wiping object (not shown in the figures) is arranged on the back side of the mop plate 1. In this embodiment, the scraping strip 3 is formed by secondary injection molding on the mop plate 1, so that the scraping strip and the mop plate are fixedly connected into a whole, and the assembling process of the scraping strip and the mop plate is omitted, therefore, the scraping strip is reliably retained, the mop head is convenient to assemble, and the single-layer structure or the double-layer structure of the mop plate is not limited. Be equipped with articulated shaft 4 at mop board 1 dorsal part center, connector 2 rotates through articulated shaft 4 and sets up on mop board 1, be equipped with the fastener on connector 2, be equipped with on mop board or articulated shaft with fastener complex locator card, thus, connector 2 rotates and drives the fastener and rotate, when the fastener rotates to the locator card, the locator card just blocks the fastener and further rotates, and then block the connector and rotate, rotate connector 2 hard, connector and/or fastener take place elastic deformation and thereby overcome the blockking of locator card, after the connector and/or fastener overcome the blockking of locator card, the fastener can support on the locator card, because scrape the strip to the mop pole production of ground scraping in-process be along the power of mop pole axis direction, the power only can force the fastener to support on the locator card, can not force the fastener to rotate along with the connector, therefore the fastener can make connector and mop head remain stable under the effect of keeping off of locator card, guarantee that the mop board can not overturn, rock, just so can utilize the convenient quick scraping of realization ground or the glass surface water stain of scraping strip to get rid of getting rid of, user's sense promotes greatly.

In this embodiment, a first hinge position 21 having a substantially circular ring-shaped cross section is disposed on the connector 2, an opening 22 smaller than the hinge shaft 4 in size is reserved on the first hinge position 21, two baffles 23 extend along two sides of the opening 22, the distance between the two baffles 23 gradually increases from the first hinge position 21 to the first hinge position 21, so that the opening 22 is elastically deformed to hinge the first hinge position 21 on the hinge shaft 4, thereby realizing that the first hinge position 21 is rotatably disposed on the hinge shaft 4. The connecting head 2 is further provided with a second hinge position 24, the second hinge position 24 is substantially perpendicular to the first hinge position 21, and the second hinge position 24 is connected with the outside mop rod 10, so that the outside mop rod 10 is movably connected with the mop head, and the mop head can flexibly rotate.

In a preferred embodiment, the locator card includes a stop strip 51 disposed on the back side of mop plate 1. The fastener can be foretell one of them baffle 23, baffle 23 is rotatory along with connector 2, when baffle 23 one side rotates to blend stop 51, blend stop 51 blocks baffle 23 and further rotates, and then block connector 2 and rotate to the left, rotate the mop pole hard, make baffle 23 oppress blend stop 51, thereby connector 2 and/or baffle 23 take place elastic deformation and overcome the blockking of blend stop 51, after the baffle 23 overcomes blockking of blend stop 51, baffle 23 opposite side can support on the opposite side of blend stop 51, make connector 2 and the mop pole that links to each other with it can make connector 2 and mop remain stable under blend stop 51's the effect of keeping off, guarantee that the mop board can not rock, the upset. The mop rod is rotated again by reverse force, and the mop rod is rotated flexibly after the baffle 23 is reversed and overcomes the block of the barrier strip 51.

Or establish to card strip 231 in one of them baffle 23 outside, above-mentioned fastener includes card strip 231, card strip 231 is rotatory along with connector 2, when card strip 231 rotates to blend stop 51, blend stop 51 blocks card strip 231 and further rotates, and then block connector 2 and rotate, rotate the mop pole hard, make card strip 231 oppress blend stop 51, connector and/or card strip take place elastic deformation and overcome blend stop 51, after card strip 231 overcomes the blockking of blend stop, the card strip can support on the blend stop, make connector 2 and the mop pole that links to each other with it can make connector 2 and mop head remain stable under blend stop 51's the retaining effect, guarantee that the mop board can not rock, the upset, blend stop 51 and the tip of card strip 231 both can be the cambered surface makes it realize elastic deformation more easily, also can be plane or inclined plane, make card strip 231 overcome the blocking of blend stop, the plane of card strip or can support on the plane or inclined plane of blend stop, further guarantee that the mop board can not rock, the upset. The locking strip 231 may be disposed at the lower edge of the blocking plate 23, or may be disposed at the middle or lower portion of the blocking plate 23. The mop rod is rotated reversely and forcibly, and the mop rod is rotated flexibly after the clamping strip 231 reversely overcomes the blocking of the blocking strip 51. The size of the baffle 23, the position and the width of the clamping strip 231 or the position or the height of the baffle strip 51 can be adjusted to control the fixed angle between the connector and the mop plate 1, so that the fixed angle between the mop rod and the mop plate 1 can be controlled within the range of 15-45 degrees, because the baffle strip 51 only influences the rotation of the connector in the left direction and does not influence the rotation of the mop rod in the second hinge position and the right direction, therefore, the arrangement of the baffle strip 51 does not influence the flexibility of the use of the mop head, or the influence on the flexibility of the use of the mop head is extremely small.

In a preferred embodiment, the first hinge point 21 is provided with a transition groove 25 having a diameter larger than the hinge shaft 4, the radian of the transition groove 25 is one sixth to one half of the radian of the first hinge point 21, the hinge shaft 4 is circumferentially provided with an arc-shaped protrusion 41 having a gradually increasing diameter, the other side of the arc-shaped protrusion 41 is in transition connection with the hinge shaft 4, the radius of the transition groove 25 is larger than the radius of the arc-shaped protrusion 41, so that the transition groove 25 can perform pivoting movement along the arc-shaped protrusion, the first hinge point 21 is matched with the size of the hinge shaft 4, at this time, the clip is the connection 232 between the first hinge point 21 and the baffle plate 23 far from the side of the transition groove 25, the positioning clip is the arc-shaped protrusion 41, because the radius of the first hinge point 21 is smaller than the radius of the arc-shaped protrusion 41, when the connection 232 between the first hinge point far from the transition groove side and the baffle plate rotates to the arc-shaped protrusion 41, the arc-shaped protrusion 41 blocks the first hinge point 21, i.e., the connector further rotates, the mop rod is rotated by force, so that the connection 232 presses the protrusion 41, the protrusion 232, the protrusion, the connection point is elastically deformed, and the elastic deformation is restored to be fixed on the elastic portion of the connector 41, and the mop head can not be stably rotated, and the mop head can be stably fixed on the mop head, and the mop head 2. The mop rod is rotated again by reverse force, and the connection 232 is restored to rotate flexibly after overcoming the block of the arc-shaped protrusion 41 reversely. In the embodiment, the extension length of the arc-shaped protrusion 41 along the axial direction of the hinge shaft 4 is not more than one third of the total length of the hinge shaft, and the extension length of the transition groove 25 is matched with the extension length of the arc-shaped protrusion 41, so that the joint 232 is more easily elastically deformed. The position or radian of the arc-shaped protrusion 41 is adjusted to control the fixed angle between the connector and the mop plate 1, so that the fixed angle between the mop rod and the mop plate 1 is controlled within the range of 15-45 degrees, because the arc-shaped protrusion 41 only affects the rotation of the connector in the left direction and does not affect the rotation of the mop rod in the second hinge position and the rotation of the connector in the right direction, the arrangement of the arc-shaped protrusion 41 does not affect the flexibility of the use of the mop head, or the influence on the flexibility of the use of the mop head is very small.

In a preferred embodiment, the edge of the mop plate 1 is provided with a strip-shaped scraping bar supporting protrusion 11, two sides of the scraping bar supporting protrusion 11 are provided with scraping bar supporting surfaces 12, the scraping bar 3 is fixed on the scraping bar supporting protrusion and the scraping bar supporting surfaces under the action of the scraping bar supporting protrusion 11 and the two scraping bar supporting surfaces 12, the bottom shape of the scraping bar is matched with the scraping bar supporting protrusion and the scraping bar supporting surfaces, the arrangement can increase the contact area between the scraping bar 3 and the mop plate 1, and further improve the reliability of the fixation of the scraping bar.

In the technical scheme, when water stains on the ground or the glass surface need to be scraped, the mop rod only needs to be rotated until the baffle 23 presses the barrier strip 51, the mop rod is rotated by force, the connector 2 and/or the baffle 23 are elastically deformed so as to overcome the blocking of the barrier strip 51, after the baffle 23 overcomes the blocking of the barrier strip 51, the other side of the baffle 23 abuts against the other side of the barrier strip 51, so that the connector 2 and the mop rod connected with the connector can keep the connector 2 and the mop head stable under the abutting action of the barrier strip 51, the mop plate is ensured not to shake or turn, and the side of the scraping strip 3 is turned to be close to the ground or the glass surface, so that the water stains can be conveniently scraped; the mop rod is rotated again by reverse force, and the baffle 23 is reversed to overcome the blocking of the barrier strip 51 and then is restored to rotate flexibly. Or the mop rod is rotated until the blocking strip 51 blocks the blocking strip 231 from further rotating, so that the connecting head 2 is blocked from rotating, the mop rod is rotated by force, the blocking strip 231 presses the blocking strip 51, the connecting head and/or the blocking strip elastically deform to overcome the blocking of the blocking strip 51, and after the blocking strip 231 overcomes the blocking of the blocking strip, the blocking strip abuts against the blocking strip, so that the connecting head 2 and the mop rod connected with the connecting head 2 can keep the connecting head 2 and a mop head stable under the blocking action of the blocking strip 51, the mop plate is ensured not to shake or turn over, the side of the scraping strip 3 is turned over to be close to the ground or the glass surface, and the convenient scraping of water stains can be realized; the mop rod is rotated again by reverse force, and the clamping strip 231 reversely overcomes the blockage of the barrier strip 51 and then flexibly rotates again. Or the mop rod is rotated until the arc-shaped protrusion 41 blocks the first hinge position 21, namely the connector further rotates, the mop rod is rotated with force, the connecting part 232 presses the arc-shaped protrusion 41, the connecting part 232 of the connector is elastically deformed, so that the elastic deformation of the recovered part is fixed on the arc-shaped protrusion 41 after the blocking of the arc-shaped protrusion is overcome, the connector 2 and the mop head are kept stable, the mop plate cannot shake or turn over, and the scraping strip 3 is turned over to be close to the ground or the glass surface, so that the convenient scraping of water stains can be realized; the mop rod is rotated again by reverse force, and the joint 232 is flexibly rotated after reversely overcoming the obstruction of the arc-shaped protrusion 41.

This embodiment is only to the explanation of the utility model concept and realization, not to limit it, under the utility model concept, the technical scheme who does not change really is still in the protection zone.

Claims (11)

1. A mop head capable of scraping water stains comprises a mop plate and a connector movably connected to the back side of the mop plate, and scraping strips are arranged in the length direction of the mop plate, and are characterized in that the scraping strips are arranged at the edge of the mop plate and protrude out of the back side edge of the mop plate or protrude out of the side edge of the mop plate, and the scraping strips are fixedly connected with the mop plate through injection molding on the mop plate; mop board back side is equipped with the articulated shaft, the connector passes through the articulated shaft and rotates the setting on the mop board be equipped with the fastener on the connector, be equipped with on mop board or articulated shaft with fastener complex locator card, the connector rotates and drives the fastener and rotate, when the fastener rotates to the locator card, the locator card blocks that the fastener further rotates, and then blocks the connector and rotate, thereby connector and/or fastener take place elastic deformation and overcome blockking of locator card.

2. A water-scraping mop head as claimed in claim 1, characterized in that the connecting head is provided with a first hinge portion having a substantially circular cross-section, the first hinge portion is provided with an opening having a size smaller than that of the hinge shaft, and two blocking plates extend along both sides of the opening, the distance between the two blocking plates increases from the first hinge portion to the first hinge portion, and the first hinge portion is rotatably connected to the hinge shaft.

3. A water-washable mop head according to claim 2, wherein said scraping strip is arranged on the rear side of said mop plate, and said connecting head is further provided with a second hinge point, said second hinge point being substantially perpendicular to said first hinge point and said second hinge point being connected to an external mop rod.

4. A mophead for scraping waterlogging as claimed in claim 2, wherein said locator card includes a bar disposed on the mop plate.

5. A water-stain scraping mop head as claimed in claim 4, wherein the clamping part is the blocking plate, the blocking plate rotates with the connecting head, when one side of the blocking plate rotates to the blocking strip, the blocking strip blocks the blocking plate from further rotating, and further blocks the connecting head from rotating, the connecting head and/or the blocking plate elastically deform to overcome the blocking of the blocking strip, and when the blocking plate overcomes the blocking of the blocking strip, the other side of the blocking plate can abut against the blocking strip.

6. A water-stain scraping mop head as claimed in claim 4, characterized in that a blocking strip is arranged outside the baffle, the clamping element comprises the blocking strip, the blocking strip rotates with the connecting head, when the blocking strip rotates to the blocking strip, the blocking strip blocks the blocking strip from further rotation, and further blocks the connecting head from rotation, the connecting head and/or the blocking strip are/is elastically deformed so as to overcome the blocking of the blocking strip, and after the blocking strip overcomes the blocking of the blocking strip, the blocking strip can be abutted against the blocking strip.

7. A water-washable mop head as claimed in claim 6, wherein said retaining strip is disposed at the lower edge of the apron.

8. A water-scratchable mop head according to claim 6, characterized in that said retaining strip is arranged in the middle or in the lower middle of the apron.

9. A mop head for scraping water stains as claimed in claim 1 or 2, wherein an elongated support protrusion for the wiper strip is provided at the edge of the mop plate, a wiper strip support surface is provided on both sides of the support protrusion, the wiper strip is fixed to the support protrusion and the support surface, and the bottom of the wiper strip is shaped to match the support protrusion and the support surface.

10. A water-scraping mop head as claimed in claim 2 or 3, characterized in that the first hinge point is provided with a transition groove with a diameter larger than the hinge shaft, the radian of the transition groove is one sixth to one half of the radian of the first hinge point, an arc-shaped protrusion with a slowly increasing diameter is arranged around the hinge shaft, the other side of the arc-shaped protrusion is in transitional connection with the hinge shaft, the radius of the transition groove is larger than the radius of the arc-shaped protrusion, the first hinge point is matched with the hinge shaft in size, the clamping member is the joint between the far transition groove side of the first hinge point and the baffle plate, the positioning clip is an arc-shaped protrusion, when the joint between the far transition groove side of the first hinge point and the baffle plate rotates to the arc-shaped protrusion, the arc-shaped protrusion blocks the connector from further rotating, and the connector is elastically deformed to overcome the blocking of the arc-shaped protrusion and then fixed on the arc-shaped protrusion.

11. A water-scratchable mop head according to claim 10, characterised in that the arcuate projection extends in the axial direction of the hinge axis over not more than one third of the total length of the hinge axis, the mop plate being provided on its rear side with a detachable wiper.

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