CN211834263U - Improved mop head - Google Patents

Abstract

The utility model relates to the field of articles for daily use, concretely relates to modified mop head, its at least one end of wiping portion 12 can be along the length direction of mop panel (11) slides, still include with mop panel 11 articulated from locking piece 17, from locking piece 17 includes lever arm 171 and locking end 172, lever arm 171 with mop panel 11 extends on length direction, locking end 172 with lever arm 171 is the type of bending, locking end 172 can reversibly hinder the motion of installing block 15, thereby prevents the slip of the slip end of wiping portion 12. The beneficial effects of the utility model reside in that, through the locking device of cleaning portion, avoided the mop head to clean the unexpected slip of portion in the use, its locking and unblock can utilize gravity to accomplish automatically when the mop head becomes level or perpendicular gesture, have labour saving and time saving's effect, have improved user's use and have experienced.

Description

Improved mop head

Technical Field

The utility model relates to the field of articles for daily use, concretely relates to cleaning appliance, more specifically relates to a modified mop head.

Background

The mop is an indispensable cleaning tool in daily life. The most common one in the market at present is a collodion mop head, and the main structure includes a mop rod, a mop head and a water squeezing device. The mop head has the disadvantages that the transverse length of the mop head is long, the mop head is heavy and the like because the water squeezing needs to be matched by the transverse water squeezing rods.

In this regard, the inventor proposes a novel mop head (patent application nos. 201921679273.8 and 201910954553.3) comprising a mop panel 11 and a wiping part 12, at least one end of the wiping part 12 being slidable along the length of the mop panel 11 to enable the wiping part 12 to deform along its own length. Thus, the user can expel the water absorbed by the wiper 12 by contracting the wiper along its length. There are various implementations of the wiping portion 12 sliding relative to the mop panel 11. In one case, as shown in fig. 1a, a sliding groove, such as a T-shaped groove or an L-shaped groove, is formed on a surface of the mop panel 11 facing the wiping portion 12, and a mounting block 15 is provided on the wiping portion 12, and has a sliding end matching with the T-shaped groove or the L-shaped groove, so that the mounting block 15 can slide along the groove to drive the wiping portion 12 to extend and retract along the length direction thereof. In another case, as shown in fig. 1b, at least one sliding rod 14 is fixedly installed on one surface of the mop panel 11 facing the wiping part 12, the axial direction of the sliding rod 14 extends along the length direction of the mop panel 11, two or more installation blocks 15 are fixedly installed on one surface of the mop panel 11 facing the wiping part 12, the installation blocks 15 are arranged at intervals along the length direction of the wiping part 12, and the sliding rod 14 is inserted into a through hole (not shown) of the installation block 15, which is matched with the sliding rod 14. Thus, the mounting block 15 can slide along the slide rod 14, and the wiping portion 12 is driven to extend and contract along the length direction thereof. In a preferred embodiment, at least one end of the wiping part 12 is fixedly provided with a stress plate 121, when the mop head is squeezed, force is applied to the stress plate 121, so that the wiping part 12 is pushed to deform along the arrow direction, and the adsorbed water is discharged due to the volume contraction of the wiping part. The mop head has a novel structure, changes the wringing mode of the traditional mop head, and solves the problems of overlong transverse length and heaviness of the mop head.

However, this invention also has a possible disadvantage in that the force applied parallel to the length of the mop panel 11 inevitably causes the sliding end of the wiping part 12 to slide undesirably during use of the mop. As the mop head 1 does not prevent such unwanted slippage, the result is that the mop portion 12 tends to contract in the direction of the arrow in the drawing (or at an angle of 180 ° thereto) when the user is holding the mop, for example, when mopping the floor, resulting in accidental deformation of the mop portion and extrusion of absorbed moisture, which is inconvenient to use. Especially, because the mop head 1 and the mop rod 21 are pivotally connected in the present invention, when the two are rotated to be parallel in the length direction, the accidental sliding of the wiping part 12 is inevitable.

Disclosure of Invention

In view of the deficiencies in the background art, the present invention is directed to a mop head that has an object of preventing the undesirable lengthwise sliding of the wiping portion.

In order to achieve the above purpose, the present invention provides an improved mop head, which comprises a mop panel 11 and a wiping part 12, wherein at least one end of the wiping part 12 can slide along the length direction of the mop panel 11, so that the wiping part 12 can deform along the length direction of the wiping part; also included is a self-locking element 17 pinned to the mop panel 11, the self-locking element 17 including a lever arm 171 and a locking end 172, the lever arm 171 being parallel to the mop panel 11 in the length direction, the locking end 172 being bent over, preferably substantially L-shaped, from the lever arm 171, the locking end 172 being capable of reversibly blocking movement of the mounting block 15 to prevent sliding of the sliding end of the mop 12 along the length direction of the mop panel 11.

Further, the locking end 172 can be inserted into the space between two mounting blocks 15, or the locking end 172 can be inserted into a slot or through hole formed in a mounting block 15.

Further, the self-locking piece 17 includes a pin hole 173, and the self-locking piece 17 is rotatably connected to the mop panel 11 by a pin penetrating through the pin hole 173.

In one case, a sliding groove is formed on a surface of the mop plate 11 facing the wiping portion 12, and a mounting block 15 having a sliding end matching the sliding groove is provided on the wiping portion 12. Further, the sliding groove is T-shaped or L-shaped.

In another case, at least one sliding rod 14 is fixedly installed on a surface of the mop panel 11 facing the wiping part 12, an axial direction of the sliding rod 14 extends along a length direction of the mop panel 11, two or more installation blocks 15 are fixedly installed on a surface of the mop panel 12 facing the mop panel 11, and the installation blocks 15 are arranged at intervals along the length direction of the wiping part 12.

Preferably, the locking end 172 is insertable into the space between the two mounting blocks 15 at the mop slide end and abuts the inside of the mounting block 15 at the end. It will be understood by those skilled in the art that the term "inboard" is used herein with respect to each mounting block 15, and specifically to the side of the mounting block at the head that is directed toward the pole of the mop.

Further, under the influence of gravity only,

the locking end 172 can be inserted into the space between two mounting blocks 15 when the mop plate 11 is parallel to the floor, or the locking end 172 can be inserted into a slot or through hole made in a mounting block 15;

the locking end 172 can be inserted into the space between two mounting blocks 15 when the mop plate 11 is perpendicular to the floor, or the locking end 172 can be inserted into a slot or through hole made in a mounting block 15.

Further, the slide rods 14 are two, the mounting block 15 has two through holes 151, and the locking end 172 is located between the slide rods 14.

In one embodiment of the present invention, the self-locking member 17 includes a first lever arm 1711 and a second lever arm 1712 located at both sides of the pin hole 173, the end of the first lever arm 1711 has a locking end 172 bent or protruded toward the wiping portion 12, and the locking end can be inserted into the space between the two mounting blocks 15 located at the slidable end of the wiping portion and abut against the inner side of the case mounting block 15 located at the most end; the end of second lever arm 1712 has an unlocking end 174; the first lever arm 1711, the pin hole 173, and the second lever arm 1712 are arranged in a line in the longitudinal direction of the wiping portion 12.

Further, the unlocking end 174 is selected from a metal block, or a profile made of a material having a density greater than that of the locking end 172, or a profile made of a material having a density equal to that of the locking end 172 but having a weight greater than that of the locking end 172.

Further, the pin hole 173 is located at the midpoint of the mop panel 11 in the length direction in the horizontal direction, the unlocking end 174 has a bent portion deviating from the direction of the wiping portion 12, and the free end of the bent portion is higher than the surface of the mop panel 11 deviating from the wiping portion 12 and penetrates out of the slot of the mop panel 11. When the mop plate of the mop head is parallel to the mop rod 21, the mop rod 21 contacts and presses the free end of the unlocking end 174, so that the first lever arm 1711 and the second lever arm 1712 rotate about the pin hole 173, the locking end 172 is removed from the gap of the mounting block 15, and the locking of the wiping unit 12 is released. Of course, unlocking can also be performed manually (i.e., by pressing the unlocking end 174 by hand) if necessary.

Further, the height of the connection portion 152 connecting the two through holes 151 of the mounting block 15 is lower than the height of the through hole 151.

In another embodiment of the present invention, the self-locking member 17 includes a first lever arm 1711' located at one side of the pin hole 173, and the pin hole 173 is located at the end of the mop panel 11 in the length direction, so that the self-locking member 17 is rotatably coupled to the mop panel 11 by a pin passing through the pin hole 173; the end of the first lever arm 1711 'has a locking end 172' bent or protruded toward the wiping portion 12, and the center of gravity of the first lever arm 1711 'is gradually distant from the wiping portion 12 from the pin hole 173 to the locking end 172'; the locking end 172' prevents the mounting block 15 from sliding along the length of the wiper portion 12, and the weight of the locking end 172' decreases from its end connected to the first lever arm 1711' to its free end.

Further, the locking end 172' can be inserted into the space between two mounting blocks 15.

Further, the locking end 172' can be inserted into a slot or through hole formed in the mounting block 15.

Preferably, the locking end 172' is capable of being inserted into the space between two mounting blocks 15 at the sliding end of the mop and abutting the inside of the mounting block 15 at the end. It will be understood by those skilled in the art that the term "inboard" is used herein with respect to each mounting block 15, and specifically to the side of the mounting block at the head that is directed toward the pole of the mop.

Further, the self-locking element 17 includes a stop means to allow the first lever arm 1711' to rotate at an acute angle to the length of the mop plate 11.

The beneficial effects of the utility model reside in that, on the basis of the mop head of the previous improvement of the inventor, provide the locking device of the portion of cleaning, avoided the mop head in the use the unexpected slip of portion of cleaning, improved the clean effect of mop. The mop head can be automatically locked and unlocked by utilizing gravity when the mop head is changed into a horizontal or vertical posture, so that the mop head has the effects of saving time and labor and improves the use experience of a user.

Drawings

Fig. 1 shows a mop head disclosed in the background art, which employs a sliding groove (fig. 1a) and a sliding rod (fig. 1b), respectively.

Fig. 2 is a schematic structural view of a mop according to an embodiment of the present invention. In the drawings, the mop plate 11 is shown in half section.

FIG. 3 is an exploded view of the mop shown in FIG. 2.

Fig. 4 is a schematic view of the self-locking element 17 of the mop shown in fig. 2.

Fig. 5 is a front view of the mop shown in fig. 2 in a state in which the wiping part 12 in this embodiment is locked by the self-locking piece 17 in a normal use state.

Fig. 6a and 6b are front views of the mop of fig. 2 in another state, showing a state in which the self-locking piece 17 is unlocked (fig. 6a) and the wiping part 12 is freely deformed (fig. 6b) in a state in which squeezing of water is required or the like.

Fig. 7 is a schematic view of the mounting block 15.

Fig. 8a and 8b are schematic views of another embodiment of a mop. In which fig. 8a shows a state in which the wiping part 12 is locked by the self-locking piece 17 in this embodiment in a normal use state; fig. 8b shows the unlocking of the self-locking member 17 in this embodiment in a situation where a squeeze of water or the like is required.

Fig. 9 is a schematic view of self-locking element 17 of fig. 8.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 2, the mop head 1 of the present invention is combined with a mop rod 21 to form a complete mop.

Specifically, the mop head 1 includes a mop panel 11 and a wiping portion 12. The wiping part 12 may be made of a material commonly used in the art, such as a collodion, a sponge, etc., as long as it can absorb moisture and discharge the absorbed moisture when it is deformed by a force.

The mop head of this embodiment is a mop of the prior application of the present invention described in the background of the invention, in which a self-locking member 17 for preventing an undesired longitudinal deformation of the wiping part 12 is added. The mop as a base is not particularly limited, and any one of the mop of the sliding groove-sliding block mentioned in the background art and the mop of the sliding rod-mounting block can be used. The mop head of the embodiment comprises a mop panel 11 and a wiping part 12, wherein at least one end of the wiping part 12 can slide along the length direction of the mop panel 11, so that the wiping part 12 can deform along the length direction of the wiping part; also included is a self-locking element 17 pinned to the mop panel 11, the self-locking element 17 including a lever arm 171 and a locking end 172, the lever arm 171 being parallel to the mop panel 11 in the length direction, the locking end 172 being substantially L-shaped with the lever arm 171, the locking end 172 being capable of reversibly blocking movement of the mounting block 15, thereby blocking sliding of the sliding end of the mop portion 12 along the length direction of the mop panel 11.

To more clearly illustrate the mop head structure of this embodiment, the mop head of the slide-mounting block is used as a basis herein. Those skilled in the art will appreciate that the mop head can be replaced with a chute-and-slide mop head. Referring to fig. 3, at least one sliding rod 14 is fixedly installed on a surface of the mop panel 11 facing the wiping part 12, and an axial direction of the sliding rod 14 extends along a longitudinal direction of the mop panel 11. As shown in fig. 3, two sliding rods 14 are used in this embodiment to control the movement path of the wiping part 12 during deformation and recovery, thereby improving the service life of the mop head. In order to combine the wiping part 12 with the mop panel 11, two or more mounting blocks 15 are fixedly mounted on the surface of the wiping part 12 facing the mop panel 11, and the mounting blocks 15 are arranged at intervals along the length direction of the wiping part 12. In the present embodiment, 5 mounting blocks 15 are used, but the specific number of the mounting blocks can be adjusted and selected by those skilled in the art according to the actual situation, such as the material of the wiping portion 12. Further referring to fig. 4, the mounting block 15 has a through hole 151 that matches the slide lever 14, and the slide lever 14 is inserted into the through hole 151. The specific shape of the slide rod 14 and the through hole 151 is not particularly limited, and may be, for example, a circle, a square, a rectangle, a triangle, a hexagon, or the like, as long as both can be matched with each other to ensure smooth sliding of the mount block 15 along the slide rod 14.

In this embodiment, a self-locking member 17 as shown in fig. 4 is specifically used. The self-locking member 17 is pinned to the mop panel 11, and more particularly, a pin hole 173 is formed in the self-locking member 17, and a pin (not shown) penetrating the pin hole is used to rotatably link the self-locking member 17 to the mop panel.

In a preferred embodiment, as shown in the present embodiment, the sliding rods 14 are two, the mounting block 15 has two through holes 151, and the locking end 172 is located between the sliding rods 14.

To achieve the locking function, the locking element 17 includes a lever arm 171 and a locking end 172, the lever arm 171 and the locking end 172 being substantially L-shaped, the lever arm 171 being parallel to the slide bar 14, the locking end 172 being insertable into the space between the two mounting blocks 15 so as to prevent or not prevent the sliding of said mounting blocks 15 along the slide bar 14 at the end of the slidable end of the mop head. The insertion of the locking end 172 into the space between the mounting blocks 15 may be accomplished by a spring mechanism, but is preferably accomplished by gravity alone from the standpoint of cost and ease of use, particularly when the mop panel 11 is parallel to the floor, the locking end 172 is inserted into the space between two mounting blocks 15; when the mop plate 11 is perpendicular to the floor, the locking end 172 is out of the spacing of the two mounting blocks 15. Preferably, the locking end 172 is insertable into the space between two mounting blocks 15 at the sliding end of the mop and abuts the inside of the mounting block 15 at the end. Thus, the inherent length of the wiping portion 12 can be maintained to the maximum extent, and the design object of the present patent can be achieved better. In addition, instead of inserting the locking end 172 into the gap of the mounting block 15, a slot or through hole may be directly formed in the mounting block 15 for inserting the locking end 172.

This embodiment illustrates a specific implementation, and in conjunction with fig. 4, self-locking element 17 includes a first lever arm 1711 and a second lever arm 1712 disposed on opposite sides of pin aperture 173, first lever arm 1711 having a locking end 172 bent or protruding toward wiper 12 at a distal end thereof, and second lever arm 1712 having an unlocking end 174 at a distal end thereof; first lever arm 1711, pin hole 173, and second lever arm 1712 are arranged in a straight line in the longitudinal direction of wiping portion 12. The specific material and shape of the unlocking end 174 is not particularly limited and may be selected, for example, from a metal block, or a profile made of a material having a density greater than that of the locking end 172, or a profile made of a material having a density equal to that of the locking end 172 but having a weight greater than that of the locking end 172. In a preferred embodiment, the unlocking end 174 has a fold facing away from the wiping section 12. Thus, the entire self-locking member 17 can be integrally formed of the same material (e.g., metal or plastic), thereby improving production efficiency and reducing production costs.

It will be understood and appreciated by those skilled in the art that, in accordance with the principles of leverage, by designing the lengths of first lever arm 1711 and second lever arm 1712, and/or by designing the weight of locking end 172 and unlocking end 174, and/or by designing the positional relationship of pin aperture 173 relative to first lever arm 1711 and second lever arm 1712, when mop faceplate 11 is parallel to the floor, locking end 172 is subjected to a moment of force greater than unlocking end 174 under the influence of gravity, such that insertion of locking end 172 into the space of mounting block 15 resists undesired retraction of wiping portion 12. When the mop plate 11 is perpendicular to the floor, the locking end 172 is disengaged from the space of the mounting block 15 and the wiping portion 12 is unlocked because the second lever arm 1721 is gradually bent from the pin hole 173 end to the unlocking end 174 end toward the wiping portion 12 and the moment applied to the locking end 172 is smaller than the moment applied to the unlocking end 174 due to the gravity applied to the unlocking end 174. At this time, the wiping part 12 is pressed in the longitudinal direction and deformed and contracted to discharge the adsorbed water.

Example 2

On the basis of embodiment 1, a further improvement is made to the locking end 172. In embodiment 1, the locking end 172 is designed by virtue of the moment of the first and second lever arms 1711, 1712, to effect insertion and removal of the locking end 172 from the space between the mounting blocks 15 under the influence of gravity, and thus locking and unlocking of the wiper 12. Although the mode has simple production process and low cost, the method also has the defect that the use effect is influenced by the abrasion of parts after long-term use.

As a modification, in conjunction with fig. 4-6 b, the self-locking element 17 has a locking end 172, a first lever arm 1711, a pin hole 173, a second lever arm 1712, and an unlocking end 174 along the length of the wiping portion 12. In the present embodiment, as shown in fig. 5, the pin hole 173 is located at the midpoint of the mop panel 11 in the longitudinal direction in the horizontal direction, and when the wiping portion 12 is parallel to the floor, the pin hole 173 is located on the axis of the mop rod 21.

In this embodiment, the unlocking end 174 has a bent portion deviating from the direction of the wiping portion 12, and a free end of the bent portion is higher than a surface of the mop panel 11 deviating from the wiping portion 12 and penetrates through the slot of the mop panel 11. As shown in fig. 6a, when the wiping part 12 is ready to perform a squeezing operation, the mop head is first rotated so that the mop plate and the mop rod 21 are parallel to each other in the longitudinal direction, and the mop rod 21 contacts and presses the free end of the unlocking end 174, so that the first lever arm 1711 and the second lever arm 1712 rotate about the pin hole 173, and the locking end 172 is released from the gap of the mounting block 15, thereby unlocking the wiping part 12. At this time, as shown in fig. 6b, when the wiping portion 12 receives a force in the longitudinal direction thereof (upward force in the figure), the wiping portion 12 is deformed and contracted, and the moisture adsorbed thereto is discharged. Of course, the user can directly press the unlocking end 174 without changing the vertical angle relationship between the mop rod 21 and the wiping part 12 or forming an included angle between the two, and the unlocking end 172 can be disengaged by directly pressing the unlocking end 174, so as to achieve the purpose of unlocking.

In the present embodiment, as a preferred embodiment, as shown in fig. 7, the height of the connection portion 152 connecting the two through holes 151 of the mounting block 15 is lower than the height of the through holes 151. In this way, when the lock 17 is unlocked as shown in fig. 6b, the mounting block 15 moved in the upward direction in the figure by the contraction of the wiper 12 is not hindered by the unlocking end 174, and the smooth progress of the wringing operation is ensured.

Example 3

On the basis of embodiment 1, the present embodiment proposes a self-locking member 17 different from this. Specifically, referring to fig. 8a, the self-locking member 17 includes a first lever arm 1711' at one side of a pin hole 173, and the pin hole 173 is located at an end of the mop panel 11 in a lengthwise direction such that the self-locking member 17 is rotatably coupled to the mop panel 11 by a pin penetrating the pin hole 173. The end of the first lever arm 1711' has a locking end 172' that is bent or raised toward the wiping portion 12, the locking end 172' being capable of preventing the mounting block 15 from sliding along the slide rod 14. Similar to the previous embodiment, the locking end 172' can be inserted into the space between two mounting blocks 15, or can be inserted into a slot or through hole formed in a mounting block 15, so long as movement of the mounting block 15 is prevented. Preferably, the locking end 172' is insertable into the space between the two mounting blocks 15 at the mop slide end and abuts the inside of the mounting block 15 at the end, again with the aim of maximizing the inherent length of the mop section 12. In a normal use condition of the mop, when the wiping part 12 is level with the floor, the locking end 172' is inserted into the gap between the two mounting blocks 15 by gravity, and prevents an undesired contraction of the slidable end of the wiping part 12.

When water needs to be squeezed out, referring to fig. 8b, the wiping portion 12 is perpendicular to the ground, the length direction of the first lever arm 1711' is perpendicular to the ground, and the pivot point at the lower end of the first lever arm 1711' is the inserted pin of the pin hole 173, that is, the first lever 1711' is in a stable balance state, and slightly disturbed, for example, the vibration of the rotation of the mop head, or the user slightly shakes the mop rod 21, or slightly inclines to the back, so that the stable balance can be broken, at this time, the first lever 1711' deflects towards the direction deviating from the wiping portion 12 under the action of gravity, so that the locking end 172' is separated from the gap between the two mounting blocks 15, and thus the wiping portion 12 is unlocked, and can deform and contract in the growth direction under the action of force to discharge the adsorbed water.

To achieve the foregoing function, the center of gravity of the first lever arm 1711 'is gradually distanced from the wiping portion 12 from the pin hole 173 to the locking end 172', and the weight of the locking end 172 'is gradually reduced from its end connected to the first lever arm 1711' to its free end, in order to enable the self-locking member 17 to be locked or unlocked by gravity depending on the posture of the mop head. Fig. 9 shows the instant before the steady state equilibrium is broken in the state of fig. 8b (the state where the mop head is vertical in length) where the locking element 17 is in the same position relative to the elements as in fig. 8a except that the direction is changed from horizontal to vertical. It will be understood by those skilled in the art that this is a virtual state for force analysis, and in actual products, the state of the self-locking element 17 changes from fig. 8a to fig. 8b is a continuous process. Specifically, the horizontal line and the vertical line (broken lines in the figure) are drawn from the pin hole 173 as the fulcrum of the lever, and it is seen that the first lever arm 1711' becomes gradually thicker from the pin hole 173 to the locking end 172', and the center of gravity of the first lever arm 1711' is gradually distant from the wiping portion 12 in consideration of the fact that the self-locking member 17 is generally made of the same material. On the other hand, locking end 172 'has a decreasing weight from its end connected to first lever arm 1711' (end b in the figure) to its free end (end a in the figure). Thus, when the posture of the self-locking piece 17 is changed from horizontal to vertical, the moment of gravity acting on the b end is greater than the moment acting on the a end, so that the self-locking piece 17 is tilted in a direction away from the wiping part 12 and rotated around the latch shaft in the pin hole 173, and finally the locking end 172' is released from between the mounting blocks 15, and the locking thereof is released.

As a modification, self-locking element 17 includes a stop means to allow first lever arm 1711' to rotate at an acute angle to the length of mop faceplate 11. In this manner, the inconvenience of requiring the user to manually pull back the locking member 17 when the rotation angle of the first lever arm 1711' is too large when the locking member 17 is unlocked and the wiping portion 12 is thus restored to the horizontal position can be avoided. The position-limiting means is not particularly limited and may be selected by those skilled in the art from any conventional pin connection position-limiting means in the mechanical field, for example, a position-limiting protrusion may be provided, a position-limiting groove may be provided at the pin hole 173 of the mop panel 11, and the like.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (13)

1. An improved mop head comprises a mop panel (11) and a wiping part (12), wherein at least one end of the wiping part (12) can slide along the length direction of the mop panel (11) so that the wiping part (12) can deform along the length direction of the wiping part; the mop is characterized by further comprising a self-locking piece (17) hinged with the mop panel (11), wherein the self-locking piece (17) comprises a lever arm (171) and a locking end (172), the lever arm (171) extends in the length direction of the mop panel (11), the locking end (172) and the lever arm (171) are bent, and the locking end (172) can reversibly obstruct the movement of the mounting block (15) so as to prevent the sliding end of the wiping part (12) from sliding along the length direction of the mop panel (11).

2. A mop head according to claim 1, characterized in that the locking end (172) is substantially L-shaped with respect to the lever arm (171), and is insertable into the space between two mounting blocks (15), or into a slot or through-hole made in a mounting block (15).

3. A mop head according to claim 2, characterised in that the locking end (172) is designed to be placed on the mop panel, which end is inserted through a through hole made in the mop panel (11) and into the space between two mounting blocks (15) or into a slot or through hole made in a mounting block (15).

4. A mop head according to any one of claims 1 to 3, characterized in that the self-locking element (17) comprises a pin hole (173), a pin being provided on the mop panel (11), the self-locking element (17) being rotatably connected to the mop panel (11) by means of the pin extending through the pin hole (173).

5. A mop head according to claim 4, characterized in that a sliding groove is provided in the mop panel (11) on the side facing the mop head (12), and that a mounting block (15) is provided on the mop head (12) with a sliding end matching the sliding groove.

6. A mop head according to claim 4, characterized in that at least one sliding bar (14) is fixedly mounted on the side of the mop panel (11) facing the wiping part (12), the axial direction of the sliding bar (14) extends along the length direction of the mop panel (11), and two or more mounting blocks (15) are fixedly mounted on the side of the wiping part (12) facing the mop panel (11), the mounting blocks (15) being arranged at intervals along the length direction of the wiping part (12).

7. A mop head according to claim 6, characterized in that the locking end (172) can be inserted into the space between two mounting blocks (15) at the sliding end of the mop and against the inside of the mounting block (15) at the end, or the locking end (172) can be inserted into a slot or through hole made in the mounting block (15).

8. The mop head according to claim 7, characterized in that said sliding bars (14) are two, said mounting block (15) has two through holes (151) respectively, said locking end (172) being located between said sliding bars (14).

9. A mop head according to claim 2, characterised in that the locking end (172) is insertable into the space between two mounting blocks (15) when the mop panel (11) is parallel to the floor, or the locking end (172) is insertable into a slot or through hole provided in a mounting block (15); when the mop plate (11) is perpendicular to the ground, the locking end (172) can be removed without being inserted into the space between the two mounting blocks (15) or into a slot or through hole formed in the mounting block (15).

10. The mop head according to claim 4, characterized in that said self-locking element (17) comprises a first lever arm (1711) and a second lever arm (1712) located on either side of said pin hole (173), the end of said first lever arm (1711) having a locking end (172) bent or protruding towards said wiping portion (12); the end of the second lever arm (1712) has an unlocking end (174); the first lever arm (1711), the pin hole (173), and the second lever arm (1712) are arranged in a line in the longitudinal direction of the wiping portion (12).

11. The mop head according to claim 10, characterized in that the pin provided on the mop panel (11) is located at the midpoint of the mop panel (11) in the length direction, so that the self-locking element (17) is rotatably connected with the mop panel (11) by the pin penetrating through the pin hole (173), the unlocking end (174) has a bent portion deviating from the wiping portion (12), and the free end of the bent portion is higher than the surface of the mop panel (11) deviating from the wiping portion (12) and penetrates out of the groove of the mop panel (11).

12. The mop head according to claim 10, wherein said self-locking element (17) comprises a first lever arm (1711') located at one side of said pin hole (173), and a pin provided on said mop panel (11) is located at the end of the length direction of said mop panel (11) so that said self-locking element (17) is rotatably connected to said mop panel (11) by a pin penetrating said pin hole (173); the end of the first lever arm (1711') has a locking end (172') bent or protruding toward the wiping part (12), and the center of gravity of the first lever arm (1711') gradually moves away from the wiping part (12) from the pin hole (173) to the locking end (172'); the locking end (172') is capable of preventing sliding of the mounting block (15) along the length of the wiping portion (12), and the locking end (172') tapers in weight from its end connected to the first lever arm (1711') to its free end.

13. The mop head of claim 11, wherein the self-locking element (17) comprises a limiting means such that the first lever arm (1711') is angled acutely with respect to the length of the mop plate (11) when rotated.

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