A cleaning mop

Abstract

The present invention belongs to the technical field of cleaning products, and particularly relates to a self-squeezing mop, comprising a handle and a cleaning head, wherein the cleaning head is provided with an articulated seat, an articulated head rotatably connected to the articulated seat at the end of the handle, a wipe fixedly provided on the cleaning head, the cleaning head comprising a main body and a movable member, the movable member being slidably connected to the main body; a squeezer movably provided on the main body, the squeezer being not subjected to external forces and being hidden within the cleaning head or located at the rear or side of the cleaning head; a movable sleeve, a mating portion provided on the cleaning head, a plug-in portion provided on the movable sleeve, the plug-in portion extending into the mating portion when the cleaning head is in a water-squeezing state; the movable sleeve is pulled, and the movable sleeve sequentially drives the squeezer and the movable member, the movable sleeve first driving the squeezer to move outside the wipe, and then driving the movable member to move and squeeze within a through-hole between the squeezer and the main body. The present invention provides a self-squeezing mop with a movable squeezer and a more convenient handle position.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning products, in particular to a cleaning mop. Background Art

[0002] Cleaning is an essential part of daily life, and cleaning tools, such as mops, are essential household items. Consumers primarily prioritize ease of cleaning and portability when choosing a mop. Therefore, self-squeezing mops are particularly popular.

[0003] The general structure of an existing self-squeezing flat mop is as follows: it includes a mop rod and a flat mop head with a mop cloth on the back. The lower end of the mop rod is movably connected to the flat mop head. The mop rod is provided with a wringing handle that can slide up and down. The lower end of the wringing handle is provided with a wringing rack. The wringing rack has an opening and a wringing mechanism for squeezing water from the mop cloth on the back of the flat mop head. After the flat mop head is rotated parallel to the mop rod, it can be inserted into the opening. When the wringing rack is in the high position, the flat mop head is out of the opening. When the wringing rack is in the low position, the lower end of the flat mop head is inserted into the opening. When the wringing rack is pulled upward, the wringing mechanism squeezes water from the mop cloth on the back of the flat mop head.

[0004] Existing self-squeezing mops have a significant drawback: the head of the squeeze frame is equipped with a hole-shaped seat, which contains a scraper. When the user is mopping the floor, the hole-shaped seat is too large to fit under the sofa. When cleaning corners, the hole-shaped seat will hit the wall. Therefore, the hole-shaped seat at the end of the squeeze frame brings a certain unpleasant experience to the user. Summary of the Invention

[0005] The object of the present invention is to provide a cleaning mop with a movable squeezer and a more convenient handle position.

[0006] The object of the present invention is achieved like this:

[0007] A cleaning mop comprises a handle bar and a cleaning head, wherein the cleaning head is provided with an articulated seat, an end of the handle bar is provided with an articulated head rotatably connected to the articulated seat, a wiping object is fixedly provided on the cleaning head, and the cleaning head comprises a main body and a movable part, wherein the main body is provided with a main body guide groove, and the movable part is provided with a matching movable part guide groove, one end of the main body guide groove is open, the movable part can only slide out from the open side of the main body guide groove and the movable part cannot be completely separated from the main body;

[0008] The squeezer is hinged on the main body, and a reset member is provided on the squeezer, which gives the squeezer a force to press against the wipe, or the reset member gives the squeezer a force hidden in the cleaning head or located at the back or side of the cleaning head;

[0009] It includes a movable sleeve, which is connected to the handle rod. The cleaning head is provided with a matching part, and the movable sleeve is provided with a plug-in part. When the cleaning head is in a water squeezing state, the plug-in part extends into the matching part; when the movable sleeve is pulled, the movable sleeve drives the squeezer and the movable part in turn; the movable sleeve first drives the squeezer to rotate and move to the outside of the wipe, and then drives the movable part to move and squeeze in the through hole between the squeezer and the main body.

[0010] A limiting notch is provided on the hinge seat, and a movable pin is provided on the hinge head. When the cleaning head is rotated and placed in a water squeezing state, the movable pin rests against the limiting notch under the action of a spring, thereby keeping the cleaning head in the water squeezing state.

[0011] A protrusion is provided on the extruder rotating shaft, and a seating groove is provided on the movable part. After the extruder is driven by the movable sleeve, the protrusion of the extruder is separated from the seating groove, and the movable part can slide relative to the main body; alternatively, the extruder rests on the movable part, and after the extruder is driven by the movable sleeve, the extruder is away from the movable part, and the movable part can slide relative to the main body.

[0012] The reset member is installed at least at one end of the rotating shaft of the extruder, and the reset member limits the protrusion in the placement groove, so that the extruder rests on the main body; the placement groove has an inclined surface or an arc surface, and the extruder is pulled by the movable sleeve, and the protrusion is separated from the placement groove from the inclined surface or arc surface position.

[0013] The extruder is provided with a first tooth portion, and the plug-in portion is provided with a second tooth portion engaged with the first tooth portion. When the plug-in portion moves downward, the extruder rotates outward.

[0014] The extruder is provided with abutment surface, the plug-in portion moves downward and the first tooth portion and the second tooth portion are separated, thebutment surface abuts against the surface of the plug-in portion and keeps the extruder in a rotated-out state.

[0015] The movable part is provided with a matching part, and there is a movable margin between the matching part and the plug-in part. When the movable sleeve moves, the plug-in part moves the interactive margin and abuts against the side wall of the matching part to drive the movable part to move; before the movable part moves, the movable sleeve drives the extruder to move.

[0016] An opening is provided on the back of the main body, the matching portion of the movable part is located in the opening, and the plug-in portion extends into the opening and is connected to the matching portion; the matching portion is a convex rib, and the plug-in portion is a slot, the width of the slot is greater than the thickness of the convex rib, and the movable margin is formed between the slot and the convex rib.

[0017] The main body is provided with a mounting groove, and the rotating shaft of the extruder is placed on the mounting groove and limited by the fixing seat, so that the extruder can be rotatably mounted on the main body.

[0018] The movable sleeve is provided with a longitudinal slot, and the handle rod is provided with a positioning slot or positioning piece that cooperates with the longitudinal slot, so that the movable sleeve cannot rotate around the handle rod; the movable sleeve is provided with a supporting surface on the side that contacts the cleaning head, and the movable sleeve is face-to-face with the main body of the cleaning head through the supporting surface.

[0019] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0020] 1. This invention incorporates a squeezer on the mop head, allowing the movable sleeve on the handle to reciprocate only by driving the movable member mounted on the main body. The sleeve lacks a squeezing mechanism, resulting in a compact and lightweight design that doesn't interfere with mopping. The reduced weight of the sleeve lowers the center of gravity of the mop, making mopping easier.

[0021] The squeezer on the cleaning head is connected in a rotating manner. When the user is mopping the floor normally, the squeezer is hidden inside the cleaning head or located at the back or side of the cleaning head under the action of the reset member. Therefore, the squeezer will not affect the user. When cleaning the wipes, the movement of the movable sleeve on the handle rod is used as a driving force to rotate the squeezer to the outside of the wipes. The movable squeezer can effectively clean the wipes without interfering with the user's normal mopping. When cleaning the wipes, the user first rotates the cleaning head and then pulls the movable sleeve back and forth. The operation is simple and easy for the user to use. In addition, the movable part can only slide out from the open side of the main body guide groove and the movable part cannot be completely separated from the main body. By limiting the moving direction of the movable part and the single operation method, misoperation is effectively avoided, making the method of cleaning the wipes unique and more stable.

[0022] 2. To ensure better cleaning performance, the present invention features a limited notch on the hinged base and a movable pin on the hinged joint. When the cleaning head is rotated and placed in a water-squeezing state, the movable pin, acting under the action of a spring, abuts against the limited notch, thereby maintaining the water-squeezing state. The user applies external force to rotate the mop head, stably maintaining the water-squeezing state, and then pulls the movable sleeve for reciprocating motion.

[0023] 3. The present invention achieves this by providing a movable margin. When the movable sleeve is pulled, the squeezer is first rotated to the outside of the wipe, and then the movable part is pulled on the squeezer to move and squeeze the wiper for cleaning. Vice versa, the movable part is reset first, and then the squeezer is reset. The specific steps are as follows: rotate the cleaning head and put it in the water squeezing state, move the movable sleeve, and the movable sleeve first drives the squeezer to the outside of the wipe, forming a hole between the squeezer and the main body. Continue to pull the movable sleeve, and the movable part and the wiper are extended into the hole. The wiper moves and squeezes between the squeezer, thereby squeezing the wiper. The more times the user pulls the movable sleeve back and forth, the cleaner the wiper is cleaned.

[0024] 4. Due to the provision of a movable margin in the present invention, the movable part can only be pulled out after the extruder is kept in an open state. Therefore, a supporting surface is provided on the extruder, the plug-in portion moves downward, and the first tooth portion and the second tooth portion are separated. The supporting surface rests on the surface of the plug-in portion and keeps the extruder in a rotated-out state. The extruder is kept in a rotated-out state by the supporting surface, and the supporting surface only needs to function when the movable part enters the extruder. During the process of reciprocating movement of the movable sleeve to squeeze out water, the movable sleeve will detach from the extruder, and the extruder will rest on the wiper under the action of the reset member, applying pressure to the wiper and performing extrusion-type cleaning.

[0025] 5. The optimal solution for the retaining structure between the main body and the movable member of the present invention is as follows: a protrusion is provided on the extruder's rotating shaft, and a receiving groove is provided on the movable member. When the extruder is driven by the movable sleeve, the protrusion of the extruder disengages the receiving groove, allowing the movable member to slide relative to the main body. In the non-squeezing state, the extruder, under the action of the reset member, retains the protrusion within the receiving groove. Since the extruder abuts against the main body, the movable member cannot be separated from the main body, thereby ensuring a stable mopping state for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0028] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0029] Figure 4 This is one of the structural schematic diagrams of the present invention in the water squeezing state;

[0030] Figure 5 This is the second structural diagram of the present invention in the water squeezing state;

[0031] Figure 6 This is one of the internal structure diagrams of the present invention in the water squeezing state;

[0032] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure at point B;

[0033] Figure 8 yes Figure 6 Schematic diagram of the enlarged structure at C;

[0034] Figure 9 This is the third structural diagram of the present invention in the water squeezing state;

[0035] Figure 10 This is the fourth structural diagram of the present invention in the water squeezing state;

[0036] Figure 11 This is the second schematic diagram of the internal structure of the present invention in the water squeezing state;

[0037] Figure 12 yes Figure 11 A schematic diagram of the structure at D of FIG.

[0038] Figure 13 This is the fifth structural diagram of the present invention in the water squeezing state;

[0039] Figure 14 This is the sixth structural diagram of the present invention in the water squeezing state;

[0040] Figure 15 This is the third schematic diagram of the internal structure of the present invention in the water squeezing state;

[0041] Figure 16 This is one of the explosion structure diagrams of the present invention;

[0042] Figure 17 This is the second schematic diagram of the explosion structure of the present invention;

[0043] Figure 18 yes Figure 17 Enlarged structural diagram at E.

[0044] In the figure: 1-handle rod; 2-cleaning head; 21-main body; 211-opening; 212-main body guide groove; 213-magnet; 22-movable part; 221-convex rib; 222-movable part guide groove; 223-magnet; 229-receiving groove; 23-hinge seat; 231-first limiting notch; 232-second limiting notch; 24-fixed seat; 29-wiping object; 3-movable sleeve; 31-plug-in part; 311-slot; 312-second tooth part; 32-hinge head; 33-movable pin; 34-spring; 39-rest surface; 4-extruder; 40-extruder shaft; 41-first tooth part; 42-rest surface; 43-protrusion; 49-reset part; L-movable margin. DETAILED DESCRIPTION

[0045] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-18 As shown:

[0046] A cleaning mop comprises a handle bar 1 and a cleaning head 2 movably connected to the handle bar 1, wherein the cleaning head 2 is provided with a wiper 29, which may be a collodion, a cleaning cloth or the like. The cleaning head 2 is not limited to the triangular shape indicated in the accompanying drawings, and may also be circular, square or polygonal in shape. The cleaning head 2 comprises a main body 21 and a movable part 22, and the movable part 22 is slidably connected to the main body 21. The main body 21 is provided with a main body guide groove 212, and the movable part 22 is provided with a matching movable part guide groove 222, and the movable part can only slide out from one side of the main body guide groove. This simplifies the movement of the cleaning head, thereby ensuring that the sliding process is more stable and reliable. Preferably, the movable part 22 cannot be detached from the main body 21, and a limiting part or a limiting step is provided on the main body guide groove 212 or the movable part guide groove 222, so that the movable part has an extreme position when pulled out. It is also possible not to set a limiter on the main body guide groove or the movable part guide groove, but to limit the stroke of the movable sleeve. For example, if the stroke of the movable part on the handle rod is 20 cm, the stroke of the movable part guide groove is greater than or equal to 20 cm.

[0047] The main body 21 is provided with an articulated seat 23, and the end of the handle rod 1 is provided with an articulated head 32 rotatably connected to the articulated seat 23. The articulated seat 23 is provided with a first limiting notch 231, and the articulated head 32 is provided with a movable pin 33. When the cleaning head 2 is rotated and the cleaning head 2 is in a water-squeezing state, the movable pin 33 abuts against the first limiting notch 231 under the action of a spring 34, thereby maintaining the cleaning head in the water-squeezing state. Preferably, the articulated seat 23 is also provided with a second limiting notch 232. When the movable pin 33 abuts against the second limiting notch 232, the handle rod 1 and the cleaning head 2 remain in a vertical state. When the cleaning head 2 is laid flat on the ground, the handle rod 1 can remain in an upright state without being affected by external forces.

[0048] The cleaning head 2 is provided with a mating portion, and the mating portion 31 is provided on the mating portion. The movable sleeve 3 is rotated to put the cleaning head 2 in a water-squeezing state, and the mating portion 31 extends into the mating portion. The movable sleeve 3 is moved, and the movable sleeve 3 drives the movable part 22 to move back and forth on the main body 21. The main body 21 is movably provided with an extruder 4, which is not subjected to external force and is hidden inside the cleaning head 2 or located at the rear or side of the cleaning head 2. The cleaning head 2 is rotated to put the cleaning head 2 in a water-squeezing state, and the mating portion 31 is connected to the extruder 4. The movable sleeve 3 is moved, and the movable sleeve 3 drives the extruder 4 to move to the outside of the wiper 29. The movable sleeve 3 is reciprocated, and the wiper 29 is squeezed between the extruder 4, thereby performing an extrusion-type cleaning on the wiper 29. The part of the extruder that contacts the wiper can be a scraper, a roller, etc.

[0049] When the user is cleaning the floor, Figure 1As shown, the user can freely clean the floor, wall and other places that need to be cleaned. When the user needs to clean the wipe 29, he rotates the cleaning head 2 to squeeze water, and then pulls the movable sleeve back and forth. The user operation is simple. Figure 4-7 As shown, the movable sleeve is not driven in the squeezing state; the movable sleeve is moved in the squeezing state, the first step, as shown Figure 9-12 As shown, the movable sleeve moves and pushes out the extruder, so that a hole is formed between the extruder and the main body, and the movable part is not driven; in the second step, the movable sleeve is moved again, as shown in FIG. Figure 13-15 As shown, the wipe moves in the through-hole, so that the squeezer squeezes and cleans the wipe.

[0050] The squeezer 4 is provided with a reset member 49, which provides a force for the squeezer 4 to rest against the wiper 29, or to maintain the squeezer 4 hidden within the cleaning head or located at the rear or side of the cleaning head. The reset member 49 is a reset spring, mounted on the squeezer shaft 40 of the squeezer 4. Preferably, a reset spring is mounted on both sides of the squeezer shaft 40. The squeezer 4 is hinged to the main body 21 and is provided with a first tooth portion 41. The plug-in portion 31 is provided with a second tooth portion 312 that meshes with the first tooth portion 41. The plug-in portion 31 moves downward, causing the squeezer 4 to rotate outward. Preferably, the main body is provided with a mounting groove, and the extruder shaft 40 is placed on the mounting groove and limited by the fixing seat 24, so that the extruder 4 can be rotatably installed on the main body 21. In this way, only sequential installation is required to complete the fixation of the extruder. First, the return spring is installed on the extruder 4 and placed on the mounting groove, and then it is tightened by the fixing seat 24. The connection position between the mounting groove and the extruder is the rotation position of the extruder shaft 40, and the installation of the rotation connection position is quickly completed.

[0051] The movable member 22 is provided with a mating portion, with a clearance L between the mating portion and the plug-in portion 31. The movable sleeve 3 moves, and the plug-in portion 31 moves through the margin L and abuts against the sidewall of the mating portion before it can drive the movable member 22 to move. Before the movable member 22 moves, the movable sleeve 3 drives the extruder 4 to move. By providing the margin L, the extruder 4 is first pushed out during the movement of the movable sleeve 3, and then the movable member 22 is pulled on the extruder 4 to move and squeeze and clean.

[0052] The main body 21 has an opening 211 at the back. The mating portion of the movable member 22 is located within the opening 211. The plug-in portion 31 extends into the opening 211 and connects with the mating portion. The mating portion is a rib 221, and the plug-in portion is a slot. The slot is wider than the thickness of the rib 221, and the slot and the rib form the movable margin L. Alternatively, the mating portion may be a slot and the plug-in portion a rib. Simply swapping the two mating arrangements will not affect their mutual driving.

[0053] The squeezer 4 is provided with an abutment surface 42. When the insertion portion 31 moves downward and the first and second teeth 41 and 312 separate, the abutment surface 42 abuts against the surface of the insertion portion 31, maintaining the squeezer 4 in its extended position. The mechanical structure of the teeth interlocking ensures the stability of the linkage between the two. Furthermore, the abutment surface 42 maintains the squeezer 4 in its extended position before the movable member 22 enters the opening between the squeezer 4 and the main body 21, ensuring that the squeezer 4 can effectively squeeze the wipe.

[0054] A limiting structure is provided between the main body 21 and the movable part 22. The limiting structure allows the movable part 22 to be fixed on the main body 21. When the water is squeezed, the movable sleeve 3 is separated from the limiting structure to allow the movable part 22 to move on the main body 21. There are various limiting structures, and manufacturers can choose them by themselves: Option 1: Figure 15 and Figure 16 As shown, the main body 21 and the movable part 22 are limited by magnets 213 and 223. When no external force is applied, the movable part 22 is attached to the main body 21. Solution 2: The two can also be limited by a buckle and a slot, such as a buckle on the movable part and a matching slot on the main body. Solution 3: Figure 4-12 As shown, the extruder 4 is rotatably connected to the main body 21, and a protrusion 43 is provided on the extruder shaft 40. The movable part 22 is provided with a placement groove 229. After the extruder 4 is driven by the movable sleeve 3, the protrusion 43 of the extruder disengages from the placement groove 229, and the movable part 22 can slide relative to the main body 21. Preferably, the placement groove has an inclined surface or an arc surface. When the extruder is pulled by the movable sleeve, the protrusion disengages from the placement groove from the inclined surface or the arc surface position. The provision of the inclined surface or the arc surface makes it easier for the protrusion to enter and exit the placement groove. The extruder itself can also be used to abut the movable part. When the extruder is not pulled by the movable sleeve, the extruder abuts on the movable part. The movable part cannot slide along the main body under the obstruction of the extruder. When the movable sleeve pulls the extruder body to rotate, the extruder moves away from the movable part, and the movable part loses the constraint of the extruder and is pulled out by the movable sleeve. The extruder body can block the movable part, or the extruder extends a protrusion to block the movable part, which depends on the actual situation of the manufacturer.

[0055] The movable sleeve 3 is provided with a longitudinal notch, and the handle bar 1 is provided with a positioning groove or positioning piece that cooperates with the longitudinal notch, so that the movable sleeve 3 cannot rotate around the handle bar. By limiting the movable sleeve 3, the plug-in portion 31 can effectively extend into the matching portion when the cleaning head is in the water squeezing state, and the process of pulling the movable sleeve 3 is more stable. Preferably, a clamping device is provided between the movable sleeve 3 and the handle bar 1. Under the action of the clamping device, the movable sleeve 3 can be positioned on the handle bar 1 and wait for the cleaning head to cooperate. The clamping device is not marked in the accompanying drawings. A buckle can be provided on the movable sleeve, and a matching clamping groove can be provided on the handle bar or the hinged head.

[0056] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cleaning mop, comprising a handle and a cleaning head, wherein the cleaning head is provided with an articulated seat, an end of the handle is provided with an articulated head rotatably connected to the articulated seat, and a wiping material is fixedly provided on the cleaning head, characterized in that: The cleaning head includes a main body and a movable part. The main body is provided with a main body guide groove, and the movable part is provided with a matching movable part guide groove. One end of the main body guide groove is open, and the movable part can only slide out from the open side of the main body guide groove and the movable part cannot be completely separated from the main body. The squeezer is hinged on the main body, and a reset member is provided on the squeezer, which gives the squeezer a force to press against the wipe, or the reset member gives the squeezer a force hidden in the cleaning head or located at the back or side of the cleaning head; It includes a movable sleeve, which is connected to the handle rod. The cleaning head is provided with a matching part, and the movable sleeve is provided with a plug-in part. When the cleaning head is in a water squeezing state, the plug-in part extends into the matching part; when the movable sleeve is pulled, the movable sleeve drives the squeezer and the movable part in turn; the movable sleeve first drives the squeezer to rotate and move to the outside of the wipe, and then drives the movable part to move and squeeze in the through hole between the squeezer and the main body.

2. The cleaning mop according to claim 1, characterized in that: A limiting notch is provided on the hinge seat, and a movable pin is provided on the hinge head. When the cleaning head is rotated and placed in a water squeezing state, the movable pin rests against the limiting notch under the action of a spring, thereby keeping the cleaning head in the water squeezing state.

3. The cleaning mop according to claim 1 or 2, characterized in that: A protrusion is provided on the extruder rotating shaft, and a seating groove is provided on the movable part. After the extruder is driven by the movable sleeve, the protrusion of the extruder is separated from the seating groove, and the movable part can slide relative to the main body; alternatively, the extruder rests on the movable part, and after the extruder is driven by the movable sleeve, the extruder is away from the movable part, and the movable part can slide relative to the main body.

4. The cleaning mop according to claim 3, characterized in that: The reset member is installed at least at one end of the rotating shaft of the extruder, and the reset member limits the protrusion in the placement groove, so that the extruder rests on the main body; the placement groove has an inclined surface or an arc surface, and the extruder is pulled by the movable sleeve, and the protrusion is separated from the placement groove from the inclined surface or arc surface position.

5. The cleaning mop according to claim 1, 2 or 4, characterized in that: The extruder is provided with a first tooth portion, and the plug-in portion is provided with a second tooth portion engaged with the first tooth portion. When the plug-in portion moves downward, the extruder rotates outward.

6. The cleaning mop according to claim 5, characterized in that: The extruder is provided with abutment surface, the plug-in portion moves downward and the first tooth portion and the second tooth portion are separated, thebutment surface abuts against the surface of the plug-in portion and keeps the extruder in a rotated-out state.

7. The cleaning mop according to claim 1, 2, 4 or 6, characterized in that: The movable part is provided with a matching part, and there is a movable margin between the matching part and the plug-in part. When the movable sleeve moves, the plug-in part moves the interactive margin and abuts against the side wall of the matching part to drive the movable part to move; before the movable part moves, the movable sleeve drives the extruder to move.

8. The cleaning mop according to claim 7, characterized in that: An opening is provided on the back of the main body, the matching portion of the movable part is located in the opening, and the plug-in portion extends into the opening and is connected to the matching portion; the matching portion is a convex rib, and the plug-in portion is a slot, the width of the slot is greater than the thickness of the convex rib, and the movable margin is formed between the slot and the convex rib.

9. The cleaning mop according to claim 1, 2, 4, 6 or 8, characterized in that: The main body is provided with a mounting groove, and the rotating shaft of the extruder is placed on the mounting groove and limited by the fixing seat, so that the extruder can be rotatably mounted on the main body.

10. The cleaning mop according to claim 1, 2, 4, 6 or 8, characterized in that: The movable sleeve is provided with a longitudinal slot, and the handle rod is provided with a positioning slot or positioning piece that cooperates with the longitudinal slot, so that the movable sleeve cannot rotate around the handle rod; the movable sleeve is provided with a supporting surface on the side that contacts the cleaning head, and the movable sleeve is face-to-face with the main body of the cleaning head through the supporting surface.

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