A water squeezing component, a water squeezing device, a cleaning bucket and a hands-free mop

Abstract

The present invention provides a water squeezing assembly, which includes a parallelogram linkage mechanism and a water squeezing part. One side of the parallelogram linkage mechanism serves as a fixed side, and the other side serves as a swinging side. The water squeezing part is provided on the swinging side. The parallelogram linkage mechanism supports the water squeezing part to move up and down in a translational manner facing the opposite side, which is beneficial to improving the water squeezing effect and stable performance. The present invention also provides a water squeezing device that uses the above-mentioned water squeezing assembly, which is beneficial to improving the water squeezing effect and stable performance. The present invention also provides a cleaning bucket that uses the above-mentioned water squeezing device, which is beneficial to improving the water squeezing effect and stable performance. The present invention also provides a hands-free mop that uses the above-mentioned cleaning bucket, which has a good water squeezing effect and stable performance. The present invention also provides a hands-free mop that uses the above-mentioned water squeezing device, which has a good water squeezing effect and stable performance.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning supplies, and particularly to a water squeezing assembly, a water squeezing device, a cleaning bucket and a hands-free mop. Background Art

[0002] A mop generally refers to a cleaning supply that uses a cleaning body on the mop head to mop the floor. In order to maintain the better performance of the cleaning body, it is necessary to squeeze and clean the dirty cleaning body in time during or after use.

[0003] Currently, a relatively advanced technology has emerged, which is relatively easy and convenient to use, and is called a hands-free mop. Specifically: the mop rod is connected with a mop head, the mop head is provided with a cleaning body, an operation part that can move relatively is connected to the mop rod, a water squeezing device is arranged at the lower end of the operation part, the water squeezing device is provided with a water squeezing assembly, and the mop head has two states. One is the unfolded state for mopping the floor, that is, the normal use state, and the other is the retracted state, which can be used for cleaning and water squeezing. The water squeezing process is as follows: in the retracted state of the mop head, the mop head is basically parallel to the mop rod. The user moves the water squeezing device relative to the mop rod to realize the relative movement between the mop head and the water squeezing assembly. Through the relative movement between the mop head and the water squeezing assembly, the water squeezing assembly acts on the cleaning body, so as to realize the water squeezing and drying of the cleaning body of the mop head. This squeezing and drying refers to relative squeezing and drying, and the cleaning body still has a certain humidity. And for cleaning, it is to repeatedly squeeze water, that is, the mop head can be immersed in water to repeatedly squeeze water in order to achieve the purpose of cleaning.

[0004] As can be seen from the above, the water squeezing assembly is the core component, and the quality of its effect on the cleaning body is directly related to the squeezing and drying effect. However, the current water squeezing assembly has limited performance and is not conducive to improving the squeezing and drying effect, so there is still a need for improvement. Summary of the Invention

[0005] The technical problems to be solved by the present invention are to overcome the defects of the prior art and provide a water squeezing assembly that is conducive to improving the squeezing and drying effect and has stable performance; also provide a water squeezing device that is conducive to improving the squeezing and drying effect and has stable performance; also provide a cleaning bucket that is conducive to improving the squeezing and drying effect and has stable performance; also provide a hands-free mop with good squeezing and drying effect and stable performance; also provide a hands-free mop with good squeezing and drying effect and stable performance.

[0006] To solve the above technical problems, the present invention provides a water squeezing assembly, which includes a parallelogram linkage mechanism and a water squeezing part. One side of the parallelogram linkage mechanism is used as a fixed side, and the other side is used as a swinging side. The swinging side is provided with a water squeezing part, and the parallelogram linkage mechanism supports the water squeezing part to move up and down in a translational motion facing the opposite side.

[0007] After adopting the above structure, compared with the prior art, the present invention has the following advantages: The fixed side is where the fixed rod of the parallel four-bar mechanism is located. Then, the connecting rod on the opposite side makes a translational motion, that is, the water squeezing part on the swinging side makes a translational motion. Therefore, by utilizing this feature, the change in the distance facing the opposite side is balanced. Moreover, due to the stable motion of the parallel four-bar mechanism, the consistency of each water squeezing is relatively high. In actual use, the water squeezing performance is stable with small differences. And because the parallel four-bar mechanism is adopted, the water squeezing part is well supported with almost no deformation and high support strength, resulting in good water squeezing effect. In summary, the application of the parallel four-bar mechanism is beneficial to making the reciprocating moving distance of the water squeezing part relative to the opposite side relatively consistent and having good support, thus creating a water squeezing characteristic, that is, a change in the opening degree of the water squeezing port is obtained through the parallel four-bar structure. In short, the present invention has the advantages of improving the squeezing dry effect and stable performance.

[0008] As an improvement, the water squeezing part includes a first water squeezing area and a scraping and cleaning area. The first water squeezing area and the scraping and cleaning area are sequentially arranged from top to bottom and are arranged in a gradually retreating manner relative to the opposite side; or, the water squeezing part includes a first water squeezing area, a scraping and cleaning area, and a second water squeezing area. The first water squeezing area, the scraping and cleaning area, and the second water squeezing area are sequentially arranged from top to bottom and are arranged in a gradually retreating manner relative to the opposite side; or, the first water squeezing area, the second water squeezing area, and the scraping and cleaning area are sequentially arranged from top to bottom and are arranged in a gradually retreating manner relative to the opposite side.

[0009] Advantages: Compared with the prior art, there are several structures for cleaning the cleaning body of the mop head. While squeezing water, scraping and cleaning are realized, and it has the advantages of good squeezing dry effect, good cleaning effect, and high efficiency.

[0010] As an improvement, for the first water squeezing area and the second water squeezing area, an extrusion roller or an extrusion bar or a combination of the two aforementioned structures is adopted.

[0011] Advantages: The operation of the extrusion roller is relatively easy, the production of the extrusion bar is convenient and the cost is low. The combination of the two can combine the advantages of both sides to meet the use requirements.

[0012] As an improvement, the water squeezing part includes a plurality of water squeezing areas. Each water squeezing area adopts an extrusion roller or an extrusion bar or a combination of the two aforementioned structures. The water squeezing areas are sequentially arranged from top to bottom and are arranged in a gradually retreating manner relative to the opposite side.

[0013] Advantages: If all extrusion rollers are adopted, the squeezing dry operation is the easiest, and in combination with the characteristics of the parallel four-bar mechanism, sufficient support force is provided for the extrusion roller. In combination with the use of water, to a certain extent, it can also play a certain role in squeezing and cleaning the cleaning body. If the extrusion bar is adopted, another optional structure is proposed with low cost. And if a combination is made, the advantages of both sides can be combined to meet the use requirements.

[0014] As an improvement, one or more water extrusion areas are provided with water guiding structures, or the scrubbing and cleaning area is provided with a water guiding structure, or a water guiding structure is provided between the two areas, or a combination of the foregoing situations is set up.

[0015] Advantages: Discharge the extruded water in time, improve the water squeezing efficiency, and avoid repeated water squeezing.

[0016] As an improvement, the water guiding structure adopts a structure with a combination of water guiding holes, or water guiding surfaces, or water guiding holes in the front and water guiding surfaces in the back.

[0017] Advantages: Simple structure and good compactness.

[0018] As an improvement, the water guiding part at the tail end of the water guiding surface is shaped to guide the water flow away from the mop head.

[0019] Advantages: Better water guiding effect.

[0020] As an improvement, the fixed side of the parallelogram linkage is arranged obliquely backward from top to bottom, and the two parallel swing rods of the parallelogram linkage are in a horizontal state in the initial state.

[0021] Advantages: 1. The fixed side of the parallelogram linkage is arranged obliquely backward from top to bottom, which can make the two parallel swing rods of the parallelogram linkage tilt backward. This is beneficial to achieving the use effects of larger spacing between the water squeezing openings and smaller cleaning resistance during cleaning, and smaller spacing between the water squeezing openings and larger extrusion resistance during water squeezing in a limited space. 2. It is consistent with the inclination trend of the extrusion part, which is more conducive to structural compactness. 3. It provides better support for the extrusion part and is more stable during water squeezing.

[0022] As an improvement, the parallelogram linkage is a self - resetting parallelogram linkage.

[0023] Advantages: It will not become loose and can quickly return to the initial position, which is beneficial to improving the water squeezing efficiency.

[0024] As an improvement, after the self - resetting parallelogram linkage is reset, the cross - section of the water squeezing opening is in a small or the smallest situation.

[0025] Advantages: During each water squeezing of the mop head cleaning body, the cross - section of the water squeezing opening is always in a small or the smallest situation, which is beneficial to improving the water squeezing effect.

[0026] As an improvement, the parallelogram linkage includes two U - shaped parts. The one on the upper side is the first U - shaped part, and the one on the lower side is the second U - shaped part. The rear parts of the first U - shaped part and the second U - shaped part are the fixed side of the parallelogram linkage, and the front parts of the first U - shaped part and the second U - shaped part are the swinging side of the parallelogram linkage.

[0027] Advantages: simple structure, compact, convenient for production and assembly, and relatively high strength.

[0028] As an improvement, the water squeezing part includes a water squeezing seat, and the water squeezing seat is an assembled part or an integral part.

[0029] Advantages: convenient for production and assembly, and relatively high strength.

[0030] As an improvement, the water squeezing seat is generally in a stepped shape, and the water squeezing seat is roughly divided into upper and lower parts with the step as the boundary. The lower part of the water squeezing seat is closer to the fixed side than the upper part of the water squeezing seat; the upper middle part, or the middle part, or the lower middle part, or the lower part of the water squeezing seat is rotatably connected to the front part of the second U-shaped part, and the upper part of the water squeezing seat is rotatably connected to the front part of the first U-shaped part.

[0031] Advantages: The integral part moves smoothly and is better stressed.

[0032] As an improvement, the upper part of the water squeezing seat is provided with a first water squeezing area, and the first water squeezing area is provided with a first squeezing roller. The lower part of the water squeezing seat is provided with a scraping and cleaning area.

[0033] Advantages: The distribution of the first water squeezing area and the scraping and cleaning area is more optimized, which is more conducive to improving the water squeezing and cleaning effects. Moreover, the first squeezing roller has three functions of squeezing, guiding and protecting the mop head cleaning body. One of the guiding functions is that when the mop head returns, it is more conducive to the mop head inserting into the water squeezing port, making the use easier and more convenient.

[0034] As an improvement, the scraping and cleaning area includes an inclined part and a cleaning tooth part provided on the inclined part.

[0035] Advantages: It is more conducive to the natural squeezing of the mop head cleaning body, that is, it is easier to adapt to the natural transition of the mop head cleaning body from a soft state to a gradually squeezed state, which is conducive to smooth operation and easy use. Moreover, during cleaning, it is conducive to quickly reaching the maximum squeezing degree, which is more conducive to the water squeezing effect and efficiency.

[0036] As an improvement, the lower end of the lower part of the water squeezing seat is provided with a second water squeezing area, and the second water squeezing area is provided with a second squeezing roller.

[0037] Advantages: The second squeezing roller is arranged at the lower end. When the mop head enters the water squeezing port, the second squeezing roller will roll and guide the mop head, which has a good guiding effect on the mop head, prevents the mop head cleaning body from being blocked and torn excessively, is conducive to reducing the water squeezing resistance, has smooth operation, and is easy to use.

[0038] As an improvement, the first water squeezing area is also provided with a first squeezing rib, and the first squeezing roller, the first squeezing rib, and the scraping and cleaning area are distributed in sequence from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

[0039] Advantages: Provide an optimized structure, which is beneficial to improving the squeezing effect and efficiency.

[0040] As an improvement, the front end face of the first squeezing rib and the front end face of the cleaning tooth part are approximately distributed on the same inclined plane.

[0041] Advantages: Provide an optimized structure, which is beneficial to improving the squeezing, cleaning effect and efficiency.

[0042] As an improvement, a second squeezing rib is further provided in the first squeezing area. The first squeezing roller, the second squeezing rib, the first squeezing rib, and the scraping and cleaning area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side. The distance between the second squeezing rib and the opposite side is greater than or equal to the distance between the first squeezing roller and the opposite side.

[0043] Advantages: Provide an optimized structure, which is beneficial to improving the squeezing, cleaning effect and efficiency.

[0044] As an improvement, a water guiding structure is provided between the first squeezing roller and the second squeezing rib, or between the second squeezing rib and the first squeezing rib, or both are provided with the water guiding structure.

[0045] Advantages: Provide an optimized structure, which is beneficial to improving the water guiding effect and the water squeezing efficiency.

[0046] As an improvement, a first limiting structure is further included. The first limiting structure is used to limit the amplitude of the squeezing part moving towards the opposite side during water squeezing.

[0047] Advantages: Prevent product component damage caused by excessive swing of the product, improve the reliability and stability of product use, and at the same time be beneficial to the squeezing and cleaning effect and efficiency.

[0048] As an improvement, the first limiting structure is a structure that limits the upward swing amplitude of the swing rod of the parallelogram linkage mechanism.

[0049] Advantages: Compact structure, high limiting strength, good limiting stability and reliability.

[0050] As an improvement, the first limiting structure includes bends provided on the two side arms of the first U-shaped member or transverse parts between the two side arms of the first U-shaped member, or bends provided on the two side arms of the second U-shaped member or transverse parts between the two side arms of the second U-shaped member, or both U-shaped members are provided with the said bends or transverse parts. When the two side arms swing to the upper limit position, the bends are in limiting cooperation with the two rear vertical parts of the squeezing frame of the water squeezing device, and when the two side arms swing to the upper limit position, the transverse parts are in limiting cooperation with the transverse part or vertical part of the squeezing frame of the water squeezing device or both.

[0051] Advantages: 1. Through the setting of the first limiting structure, when the two side arms swing up to the upper limit position, they will not go out of position, ensuring that the water squeezing structure can be cleaned and squeezed within the set range; 2. Through the setting of the first limiting structure, when the upper side arm swings up to the upper limit position, it is avoided that the shell around the water squeezing port is damaged due to going out of position; 3. Through the setting of the first limiting structure, it can effectively ensure that the reset elastomer (spring or polyurethane) expands, contracts or twists within the set range, preventing the reset elastomer from failing due to excessive expansion, contraction or torsion; 4. Through the setting of the first limiting structure, the "pop" sound generated when the upper side arm swings up beyond the upper limit position and collides with the shell around the water squeezing port is reduced, which affects the silence of the room; 5. Through the setting of the first limiting structure, the overall performance of the water squeezing structure is more stable and the service life is longer.

[0052] As an improvement, the parallel four-bar linkage mechanism adopts a self-resetting structure: a tension spring is provided between the first U-shaped member and the water squeezing seat. The upper end of the tension spring is connected to the first connecting portion provided at the middle position of the first U-shaped member, and the lower end of the tension spring is connected to the second connecting portion provided at the lower part of the water squeezing seat.

[0053] Advantages: The structure is simple, compact, the reset effect is good, and it is convenient for production, installation and use.

[0054] As an improvement, the parallel four-bar linkage mechanism adopts a torsion spring structure: the torsion spring structure is arranged at the rotating part of the first U-shaped member, or arranged at the rotating part of the second U-shaped member, or both are arranged.

[0055] Advantages: The structure is concealed, the force is concentrated, and it is convenient for production, installation and use.

[0056] As an improvement, from the side view, the extrusion side of the water squeezing part includes a vertical section and a backward inclined section that are sequentially connected up and down.

[0057] Advantages: It provides a preferred structure, which is beneficial to the adaptability of the working surface of the water squeezing part and the cleaning body from soft to over-extrusion, the force distribution is balanced, and finally it is beneficial to achieve the water squeezing performance.

[0058] As an improvement, the first water squeezing area is arranged in the vertical section, the scraping and cleaning area is arranged in the backward inclined section, or there is also a second water squeezing area. The second water squeezing area is arranged between the vertical section and the backward inclined section, or the second water squeezing area is arranged at the lower end of the backward inclined section, or there is no scraping and cleaning area, and instead, a plurality of extrusion rollers are sequentially arranged along the backward inclined section.

[0059] Advantages: It provides a preferred structure, which is beneficial to improving the water squeezing, cleaning effect and efficiency.

[0060] As an improvement, the first water squeezing area includes a first squeezing roller and a first squeezing rib. The first squeezing rib is arranged at the lower end of the vertical section. The rolling surface of the first squeezing roller protrudes relatively forward compared to the first squeezing rib. Drainage openings are provided below the first squeezing roller and at the rear side of the first squeezing rib.

[0061] Advantages: The structure is compact. The water squeezed out by the first squeezing roller and the first squeezing rib can be drained in time, without the phenomenon of stagnant flow and repeated water squeezing, achieving drainage while squeezing, which is more conducive to improving the water squeezing effect and efficiency.

[0062] To solve the above technical problems, the present invention provides a water squeezing device, which includes a main body. The main body is provided with a water squeezing opening. The main body installs the above-mentioned water squeezing assembly. The water squeezing part of the water squeezing assembly is located at the water squeezing opening. A parallelogram linkage mechanism supports the water squeezing part to act on the cleaning body of the mop head inserted into the water squeezing opening.

[0063] After adopting the above structure, compared with the prior art, the present invention has the following advantages: The water squeezing assembly composed of a parallelogram linkage and a water squeezing part is beneficial to improving the water squeezing effect and has stable performance.

[0064] To solve the above technical problems, the present invention provides a hands-free mop, which includes a mop rod and a mop head. The above-mentioned water squeezing device is movably connected to the mop rod relatively. When the mop head is in the retracted state, the relatively movable connection realizes the relative movement between the mop head and the water squeezing assembly. Through the relative movement between the mop head and the water squeezing assembly, the water squeezing assembly acts on the cleaning body.

[0065] After adopting the above structure, compared with the prior art, the present invention has the following advantages: By arranging a water squeezing device on the mop rod to form a hands-free mop, the water squeezing device has a water squeezing assembly composed of a parallelogram linkage and a water squeezing part, with good water squeezing effect and stable performance.

[0066] To solve the above technical problems, the present invention provides a cleaning bucket, which includes a bucket body. The bucket body is provided with the above-mentioned water squeezing device.

[0067] After adopting the above structure, compared with the prior art, the present invention has the following advantages: The bucket body is provided with a water squeezing device, and the water squeezing device has a water squeezing assembly composed of a parallelogram linkage and a water squeezing part, which is beneficial to improving the water squeezing effect and has stable performance.

[0068] As an improvement, the bucket body is detachably or non-detachably connected with a bucket cover part, and the water squeezing device is installed on the bucket cover part.

[0069] The advantages are: It is convenient to set the water squeezing device and is beneficial to convenient use.

[0070] To solve the above technical problems, the present invention provides a hands-free mop, which includes a mop rod and a mop head, and also includes the cleaning bucket. In the state where the mop head is retracted, the mop head and the cleaning bucket can be movably matched with each other, and this relative movement cooperation realizes the relative movement between the mop head and the water squeezing component. Through the relative movement between the mop head and the water squeezing component, the water squeezing component acts on the cleaning body.

[0071] After adopting the above structure, compared with the prior art, the present invention has the following advantages: The mop head and the bucket body are used in cooperation, and the bucket body is provided with a water squeezing device. The water squeezing device has a water squeezing component composed of a parallelogram linkage and a water squeezing part, and has good water squeezing effect and stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is one of the three-dimensional schematic diagrams of the water squeezing component as Example 1.

[0073] Figure 2 It is the second three-dimensional schematic diagram of the water squeezing component as Example 1.

[0074] Figure 3 It is the front view of the water squeezing component as Example 1.

[0075] Figure 4 It is the rear view of the water squeezing component as Example 1.

[0076] Figure 5 It is the sectional view taken along the line B-B of the water squeezing component as Example 1.

[0077] Figure 6 It is the top view of the water squeezing component as Example 1.

[0078] Figure 7 It is the left view of the water squeezing component as Example 1.

[0079] Figure 8 It is the first explosion schematic diagram of the water squeezing component as Example 1.

[0080] Figure 9 It is the second explosion schematic diagram of the water squeezing component as Example 1.

[0081] Figure 10 It is the first three-dimensional schematic diagram of the water squeezing component as Example 2.

[0082] Figure 11 It is the second three-dimensional schematic diagram of the water squeezing component as Example 2.

[0083] Figure 12 It is the first three-dimensional schematic diagram of the water squeezing component as Example 3.

[0084] Figure 13It is the second three-dimensional schematic diagram of the water squeezing component as Example 3.

[0085] Figure 14 It is the half-sectional schematic diagram of the water squeezing component as Example 3.

[0086] Figure 15 It is the three-dimensional structure schematic diagram of the mop head of the hands-free mop of the present invention in the unfolded state.

[0087] Figure 16 It is the front view of the mop head of the hands-free mop of the present invention in the retracted state.

[0088] Figure 17 It is Figure 16 the sectional view taken along the line A-A of

[0089] Figure 18 It is one of the explosion schematic diagrams of the hands-free mop of the present invention.

[0090] Figure 19 It is the second explosion schematic diagram of the hands-free mop of the present invention.

[0091] Figure 20 It is one of the explosion schematic diagrams of the structure related to the mop head of the hands-free mop of the present invention.

[0092] Figure 21 It is the second explosion schematic diagram of the structure related to the mop head of the hands-free mop of the present invention.

[0093] Figure 22 It is one of the state schematic diagrams of the hands-free mop adopting Example 1.

[0094] Figure 23 It is the second state schematic diagram of the hands-free mop adopting Example 1.

[0095] Figure 24 It is the third state schematic diagram of the hands-free mop adopting Example 1.

[0096] Figure 25 It is the fourth state schematic diagram of the hands-free mop adopting Example 1.

[0097] Figure 26 It is the side view of the operating handle sleeved with the first rod.

[0098] Figure 27 It is Figure 26 the sectional view taken along the line C-C of

[0099] Figure 28 It is the front view of the operating handle after half-sectioning.

[0100] Figure 29 It is the enlarged view of A.

[0101] Figure 30 Schematic diagram of the structure when the lower limit block adopts another structure under the enlarged view of A.

[0102] Figure 31 Schematic diagram of the structure without the clamped convex block under the enlarged view of B.

[0103] Figure 32 Schematic diagram of the structure with the clamped convex block under the enlarged view of B.

[0104] Figure 33 Schematic diagram of the structure of the unconnected convex block when the non-extrusion type fitting structure is adopted under the enlarged view of B.

[0105] Figure 34 Schematic diagram of the structure of the connected convex block when the non-extrusion type fitting structure is adopted under the enlarged view of B.

[0106] Figure 35 Schematic diagram of the structure of the second type of lower limit block.

[0107] Figure 36 Schematic diagram of the structure of the third type of lower limit block.

[0108] Figure 37 Schematic diagram of the structure of the fourth type of lower limit block.

[0109] Figure 38 Explosion schematic diagram of the second limit structure adopting the positioning depression and elastic plate structure.

[0110] Figure 39 Cross-sectional schematic diagram of the mating state of the depression and the elastic plate.

[0111] Figure 40 Explosion schematic diagram of the assembly relationship between the convex block and the first rod when the split structure is adopted.

[0112] Figure 41 Schematic diagram of the structure after the assembly of the convex block and the first rod when the split structure is adopted.

[0113] Figure 42 Explosion schematic diagram of the relevant structure of the operating handle part from the front view when the second limit structure adopts the radial fitting structure of the convex part and the concave part.

[0114] Figure 43 Schematic diagram of the structure of the relevant part of the first rod when the second limit structure adopts the radial fitting structure of the convex part and the concave part and the structure is integrated.

[0115] Figure 44 Schematic diagram of the structure of the relevant part of the first rod when the second limit structure adopts the radial fitting structure of the convex part and the concave part and the structure is split.

[0116] Figure 45Explosion diagram of the relevant structure of the first rod part when the second limiting structure adopts a radial matching structure of a convex part and a concave part.

[0117] Figure 46 Schematic diagram of the structure for unidirectional rotation limit of the mop head.

[0118] Figure 47 One of the schematic diagrams of another structure for unidirectional rotation limit of the mop head.

[0119] Figure 48 Two of the schematic diagrams of another structure for unidirectional rotation limit of the mop head.

[0120] Figure 49 Explosion diagram of using screws to fix the limit block.

[0121] Figure 50 Schematic diagram of the structure after the limit block is fixed with screws and the assembly is completed.

[0122] Figure 51 Schematic diagram of using a torsion spring.

[0123] Figure 52 One of the explosion diagrams of using a torsion spring.

[0124] Figure 53 Two of the explosion diagrams of using a torsion spring.

[0125] Figure 54 Magnified view of C.

[0126] Figure 55 Schematic diagram of a transverse half-section along the torsion spring.

[0127] Figure 56 Magnified view of D.

[0128] Figure 57 Explosion diagram of the elastic part adopting a split structure.

[0129] Figure 58 Schematic diagram of the structure after the elastic part is assembled.

[0130] Figure 59 Explosion diagram of the split structure of the part of the upper limit structure at the operating handle.

[0131] Figure 60 For Figure 59 Schematic diagram of the structure after the assembly is completed in

[0132] Figure 61 Schematic diagram of the state of the hands-free mop of the present invention when it is put away and placed.

[0133] Figure 62Explosion schematic diagram of the independently arranged upper limit structure.

[0134] Figure 63 Adopt Figure 62 Schematic diagram of the state of fixing the upper limit by the structure shown.

[0135] Figure 64 Schematic diagram of the structure of the cleaning bucket of the present invention.

[0136] Figure 65 Schematic diagram of the structure of another hands-free mop of the present invention.

[0137] Figure 66 For Figure 65 Schematic diagram of the structure when the handle of the hands-free mop shown is opened.

[0138] Figure 67 Explosion schematic diagram of the cleaning bucket of the present invention.

[0139] Figure 68 Top view of the cleaning bucket of the present invention in the state where the handle is pulled up (the water squeezing assembly is not installed).

[0140] Figure 69 For Figure 68 Cross-sectional view taken along the line D-D of

[0141] Figure 70 For Figure 68 Explosion schematic diagram of

[0142] Figure 71 Enlarged view of E.

[0143] Figure 72 Enlarged view of F.

[0144] Figure 73 Schematic diagram of the structure of the bucket cover of the cleaning bucket of the present invention.

[0145] Figure 74 Half-sectional view of the bucket cover of the cleaning bucket of the present invention.

[0146] Figure 75 Schematic diagram of the structure of the bucket cover of the cleaning bucket of the present invention after removing the water squeezing assembly.

[0147] Figure 76 For Figure 65 One of the state schematic diagrams of the hands-free mop shown.

[0148] Figure 77 For Figure 65 Two of the state schematic diagrams of the hands-free mop shown.

[0149] Figure 78 For Figure 65 Three of the state schematic diagrams of the hands-free mop shown.

[0150] As shown in the figure, 1. Mop rod, 2. Mop head, 3. Water squeezing port, 4. Water guiding hole, 5. Water guiding surface, 5.1 Tail end water guiding part, 6. First U-shaped part, 7. Second U-shaped part, 8. Water squeezing seat, 9. First squeezing roller, 10. Brush teeth, 11. Second squeezing roller, 12. First squeezing stem, 13. Second squeezing stem, 14. Bent part, 15. Horizontal part, 16. Vertical part, 17. Inclined part, 18. Transverse part, 19. Vertical part, 20. Tension spring, 21.1 First connecting part, 21.2 Second connecting part, 22. Torsion spring, 23. Mounting hole, 24. Pressure cover, 25. One foot, 26. The other foot, 27. Vertical section, 28. Rearward inclined section, 29. Operating handle, 29.1 Hand-held part, 30. Housing, 31. Limit depression, 32. Elastic plate, 33. Limit protrusion, 34. Protrusion, 35. Protruding part, 36. Mounting groove, 37. Limit block, 38. Clamping platform, 39. Clamping interface, 40. Hollow cylindrical section, 41. Cavity, 42. Screw, 43. V-shaped inlet, 44. Depression, 45. Axial groove, 46. Clamping section, 47. Groove, 48. Elastic part, 49. First limit block, 50. Second limit block, 51. Pin shaft, 52. First limit surface, 53. Second limit surface, 54. Third limit surface, 55. Protrusion, 56. First rod, 57. Plane, 58. Platform, 59. Cleaning body, 60. Substrate, 61. Back plate, 62. First clamping part, 63. Second clamping part, 64. Socket part, 65. Elastic part, 66. Limit groove, 67. Limit stop block, 68. Elastic limit button, 69. Limit hole, 70. Guide block, 71. Rotating part, 72. Mounting inclined groove, 73. Rotating mating hole, 74. Convex part, 75. Connecting part, 76.1 Notch, 76.2 Another notch, 77. Perforation, 78. Plug block, 79. Fixing hole, 80. Fixing groove, 81. Annular groove, 82. Claw, 83. Claw slot, 84. Mating protrusion, 85. Mating opening, 86. Lateral opening, 87. Barrel body, 88. Barrel cover, 89. Pouring port, 90. Handle, 90.1 Fixing column, 90.2 Connecting hole, 90.3 Guide groove, 90.4 Fixing column guiding slope, 91. Storage groove, 92. Notch, 93. Elastic button, 94. Button hole, 95. Fixed mounting groove, 96. Fixed mounting part, 97. Convex platform, 98. Guiding surface, 99. Leakage port, 100. Circumferential recess, 101. Circumferential protrusion, 102. Guide rib, 103. Elastic block. Detailed implementation mode

[0151] The present invention will be further described in detail below:

[0152] The cleaning body 59 can be of various types, such as a cotton swab block, a sponge block, a mop, etc., and materials such as plastic (polymer) foam, superfine fiber, cotton cloth, etc. can be used. Hereinafter, the cotton swab block will be taken as an example of the cleaning body 59 for illustration.

[0153] The following gives an example of a hands-free mop using the first embodiment:

[0154] A hands-free mop of the present invention includes a mop rod 1, a mop head 2, and a water squeezing device. The water squeezing device is provided with a water squeezing opening 3 through which the mop head 2 passes for water squeezing, and further includes a parallelogram linkage mechanism and a water squeezing part. One side of the parallelogram linkage mechanism is used as a fixed side, and the other side is used as a swinging side. The swinging side is provided with a water squeezing part. The parallelogram linkage mechanism supports the up-and-down translational movement of the water squeezing part to achieve water squeezing and cleaning of the cleaning body 59 of the mop head 2.

[0155] In this example, the body of the water squeezing device refers to the housing 30 of the water squeezing opening 3.

[0156] The whole formed by combining the parallelogram linkage mechanism and the water squeezing part can be called a water squeezing assembly. The parallelogram linkage mechanism is also called a parallelogram mechanism.

[0157] The fixed side of the parallelogram linkage mechanism is arranged obliquely backward from top to bottom, and the two parallel swing rods of the parallelogram linkage mechanism are in a horizontal state in the initial state.

[0158] The parallelogram linkage mechanism is a self-resetting parallelogram linkage mechanism. After the self-resetting parallelogram linkage mechanism is reset, the cross-section of the water squeezing opening 3 is in a small or the smallest situation. In this example, when the swing rods of the parallelogram linkage mechanism swing up to the horizontal state, the size of the opening between the water squeezing part and the opposite side is used as the cross-section size of the water squeezing opening 3 after reset. Since the pressing parts on the working surface of the water squeezing part are arranged in a gradually receding manner, the cross-section size of the water squeezing opening 3 becomes larger in sequence from top to bottom.

[0159] The parallelogram linkage mechanism includes two U-shaped parts. The upper one is the first U-shaped part 6, and the lower one is the second U-shaped part 7. The rear parts of the first U-shaped part 6 and the second U-shaped part 7 are respectively rotatably connected to the housing 30 of the water squeezing opening 3 to form the fixed side of the parallelogram linkage mechanism. The front parts of the first U-shaped part 6 and the second U-shaped part 7 are respectively rotatably connected to the water squeezing part to form the swinging side of the parallelogram linkage mechanism.

[0160] The fact that the rear parts of the first U-shaped part 6 and the second U-shaped part 7 are respectively rotatably connected to the housing 30 means that on both sides of the rear parts of the first U-shaped part 6 and the second U-shaped part 7, there are rotation parts 71 protruding outward. The rotation parts 71 are snapped into the rotation fitting holes 73 provided on the inner side wall of the housing 30 through the installation inclined grooves 72 provided on the inner side wall of the housing 30, thus completing the rotatable connection. As shown in the figure, after such a design, the assembly is very convenient.

[0161] The fixed side of the parallelogram linkage is arranged obliquely backward from top to bottom, which means that the rotating parts 71 on both sides of the rear part of the first U-shaped member 6 are closer to the opposite side than the rotating parts 71 on both sides of the rear part of the second U-shaped member 7. Since it is a parallelogram linkage, the rotating mating parts on both sides of the front part of the first U-shaped member 6 with the water squeezing part are also closer to the opposite side than the rotating mating parts on both sides of the front part of the second U-shaped member 7 with the water squeezing part.

[0162] It further includes a first limiting structure, which is used to limit the movement amplitude of the water squeezing part towards the opposite side during water squeezing. In this example, the first limiting structure adopts a structure that limits the upward swing amplitude of the swing rod of the parallelogram linkage. Specifically, it can be the following structure:

[0163] The first limiting structure includes the bent parts 14 arranged on the two side arms of the first U-shaped member 6 or the transverse part 15 between the two side arms of the first U-shaped member 6, or the bent parts 14 arranged on the two side arms of the second U-shaped member 7 or the transverse part 15 between the two side arms of the second U-shaped member 7, or both U-shaped members are provided with the bent parts 14 or the transverse part 15. When the two side arms swing to the upper limit position, the bent part 14 is in limit cooperation with the two rear vertical parts 16 of the water squeezing frame of the water squeezing device, and when the two side arms swing to the upper limit position, the transverse part 15 is in limit cooperation with the transverse part 18 or the vertical part 19 of the water squeezing frame of the water squeezing device or both of them. In this example, the first limiting structure includes the transverse part 15 between the two side arms of the first U-shaped member 6 and the bent parts 14 arranged on the two side arms of the second U-shaped member 7. When the two side arms swing to the upper limit position, the bent part 14 is in limit cooperation with the two rear vertical parts 16 of the water squeezing frame of the water squeezing device, and when the two side arms swing to the upper limit position, the transverse part 15 is in limit cooperation with the vertical part 19 of the water squeezing frame of the water squeezing device.

[0164] The first limiting structure can also be other structures. For example, it can be the edge guards arranged on both sides of the upper port of the water squeezing port 3, and the edge guards are used to block the two side arms of the first U-shaped member 6 from swinging upward continuously; it can also be a structure that directly limits the water squeezing part from swinging upward continuously. Of course, it can also be other structures, as long as it can limit the movement amplitude of the water squeezing part towards the opposite side.

[0165] The water squeezing part includes a water squeezing seat 8, and the water squeezing seat 8 is an assembled part or an integral part. In this example, the water squeezing seat 8 adopts an integral part formed by injection molding.

[0166] The self-resetting structure adopted by the parallelogram linkage is that a tension spring 20 is arranged between the first U-shaped member 6 and the water squeezing seat 8. The upper end of the tension spring 20 is connected to the first connecting part 21.1 arranged at the middle position of the first U-shaped member 6, and the lower end of the tension spring 20 is connected to the second connecting part 21.2 arranged at the lower part of the water squeezing seat 8.

[0167] The self-resetting structure adopted by the parallelogram linkage mechanism can also be other structures. For example, the parallelogram linkage mechanism adopts a torsion spring 22 structure: the torsion spring 22 structure is arranged at the rotating part 71 of the first U-shaped part 6, or arranged at the rotating part 71 of the second U-shaped part 7, or both are arranged. In this example, the torsion spring 22 structure is arranged at the rotating part 71 of the first U-shaped part 6. The water squeezing housing 30 is provided with a mounting hole 23 that is rotatably connected to the rotating part 71. A gland 24 is arranged outside the mounting hole 23. One leg 25 of the torsion spring 22 is fixedly connected to the rotating part 71, and the other leg 26 is fixedly connected to the water squeezing housing. The gland 24 is connected to the water squeezing housing. In this example, the torsion spring 22 is sleeved in the annular groove 81 of the rotating part 71 of the first U-shaped part 6. One leg 25 of the torsion spring 22 is inserted and fixedly connected to the fixing hole 79 provided at the outer end of the rotating part 71, and the other leg 26 is fixedly connected to the fixing groove 80 provided in the mounting hole 23. The gland 24 is in snap-fit connection with the mounting hole 23, and the gland 24 has the effect of preventing the torsion spring 22 from moving radially outwards.

[0168] As the water squeezing part of the water squeezing assembly in the first embodiment of the water squeezing device:

[0169] The water squeezing part includes a first water squeezing area, a scraping and cleaning area, and a second water squeezing area. The first water squeezing area, the scraping and cleaning area, and the second water squeezing area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

[0170] The water squeezing part includes a water squeezing seat 8. The water squeezing seat 8 is an integral part and is generally in a stepped shape. The water squeezing seat 8 is roughly divided into upper and lower parts with the step as the boundary. The lower part of the water squeezing seat 8 is closer to the fixed side than the upper part of the water squeezing seat 8. The middle part of the water squeezing seat 8 is rotatably connected to the front part of the second U-shaped part 7, and the upper part of the water squeezing seat 8 is rotatably connected to the front part of the first U-shaped part 6.

[0171] The upper part of the water squeezing seat 8 is provided with a first water squeezing area, and the first water squeezing area is provided with a first squeezing roller 9. The lower part of the water squeezing seat 8 is provided with a scraping and cleaning area. The scraping and cleaning area includes an inclined part 17 and brush teeth 10 arranged on the inclined part 17. The brush teeth 10 are in the shape of a cylinder, and the brush teeth 10 are evenly distributed in multiple rows and columns. Of course, the brush teeth 10 can also be other structures, such as a cone, or an elliptical cylinder, or a serrated body, or a polyhedron. The brush teeth 10 can also be other structures, such as being evenly distributed in multiple rows and columns in a staggered manner, or being arranged irregularly. The lower end of the lower part of the water squeezing seat 8 is provided with a second water squeezing area, and the second water squeezing area is provided with a second squeezing roller 11.

[0172] The first water squeezing area is also provided with a first squeezing rib 12. The first squeezing roller 9, the first squeezing rib 12, and the scraping and cleaning area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

[0173] From a side view, the squeezing side of the water squeezing section includes a vertical section 27 and a backward inclined section 28 that are connected in sequence from top to bottom.

[0174] The first water squeezing area is arranged on the vertical section 27, the scraping and cleaning area is arranged on the backward inclined section 28, and the second squeezing roller 11 is arranged at the lower end of the backward inclined section 28. The first squeezing rib 12 is arranged at the lower end of the vertical section 27. The rolling surface of the first squeezing roller 9 protrudes relatively forward compared to the first squeezing rib 12. A drainage port is arranged below the first squeezing roller 9 and behind the first squeezing rib 12, and the drainage port adopts a water guiding hole 4. The front end surfaces of the first squeezing rib 12 and the brush teeth 10 are substantially distributed on the same inclined plane.

[0175] As the water squeezing assembly of the second embodiment of the water squeezing device, compared with the first embodiment, the main difference lies in the water squeezing section:

[0176] The water squeezing section of the second embodiment does not have the scraping and cleaning area of the first embodiment. The water squeezing section only includes a plurality of water squeezing areas. Each water squeezing area adopts a squeezing roller or a squeezing rib or a combination of the above two structures. The water squeezing areas are distributed in sequence from top to bottom and are arranged in a gradually receding manner relative to the opposite side. In this example, each water squeezing area adopts a squeezing roller. Due to the layout of a plurality of squeezing rollers and the stable and powerful support of the parallelogram linkage mechanism, compared with the prior art, it has a better friction cleaning effect on the cleaning body 59 of the mop head 2.

[0177] As the water squeezing assembly of the third embodiment of the water squeezing device, compared with the first embodiment, the main difference lies in the water squeezing section:

[0178] The water squeezing section of the third embodiment includes a first water squeezing area, a scraping and cleaning area, and a second water squeezing area. The first water squeezing area, the second water squeezing area, and the scraping and cleaning area are distributed in sequence from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

[0179] The first water squeezing area is also provided with a second squeezing rib 13. The first squeezing roller 9, the second squeezing rib 13, the first squeezing rib 12, and the scraping and cleaning area are distributed in sequence from top to bottom and are arranged in a gradually receding manner relative to the opposite side. The distance between the second squeezing rib 13 and the opposite side is greater than or equal to the distance between the first squeezing roller 9 and the opposite side.

[0180] A water guiding structure is arranged between the first squeezing roller 9 and the second squeezing rib 13 and between the second squeezing rib 13 and the first squeezing rib 12. The water guiding structure adopts a combined structure with a water guiding hole 4 in the front and a water guiding surface 5 in the back. The position of the tail end water guiding part 5.1 of the water guiding surface 5 is in a shape that guides the water flow to flow away from the mop head 2 during water squeezing. In this example, the position of the tail end water guiding part 5.1 is substantially arranged in a horizontal plane during water squeezing. Of course, it can also swing slightly downward or upward slightly. As long as it can guide the water flow to flow away from the mop head 2, it is a suitable tail end water guiding part 5.1.

[0181] The described tapered setting means a setting that gradually recedes relative to the opposite side, and the degree of recession can be a uniform recession or a recession with different degrees.

[0182] The water squeezing device is provided with an operating handle 29. The operating handle 29 is sleeved on the mop rod 1. The lower end of the operating handle 29 is provided with a housing 30 of the water squeezing port 3. Advantages: convenient operation and compact structure. The mop rod 1 is divided into multiple rod segments that can be connected together to form a mop rod 1. The rod segment used to connect the mop head 2 is called the first rod 56. In order to have circumferential limitation when sleeved on the operating handle 29 and at the same time have good axial guiding performance, the first rod 56 is also provided with guiding blocks 70 arranged axially. The number of guiding blocks 70 is one or more. In this example, there are two.

[0183] The operating handle 29 adopts a sleeve part. This sleeve part is sleeved on the mop rod 1. The upper end of the sleeve part is provided with a hand-held part 29.1. In this example, the sleeve part and the housing 30 are integrally formed, with good integrity and convenient production.

[0184] The operating handle 29 is provided with a second limiting structure that can be directly pushed to unlock. The second limiting structure is used to limit the entire water squeezing device including the operating handle 29 on the mop rod 1 so that it does not fall off. Advantages: This improvement is beneficial for preventing the entire water squeezing device from falling off the mop rod 1 and pressing on the mop head 2 during mopping, making it more convenient for users. Moreover, directly pushing means directly pushing the operating handle 29, that is, as long as a certain external force is used to push the operating handle 29, it can be unlocked without setting additional operating structures such as buttons to unlock, and the operation is more rapid and convenient.

[0185] The directly pushable unlocking limiting structure can also include another limiting structure. In this way, the directly pushable unlocking limiting structure includes two structures. The first structure is an upper limiting structure, which is used to fix the mop rod so that the mop head 2 retracted on the mop rod does not fall and press on the squeezing part. At this time, the mop head 2 is located above the water squeezing port. The second structure is a lower limiting structure, which refers to the second limiting structure. Both the upper and lower limiting structures include two parts. Among them, one part is arranged on the mop rod, and the other part is arranged on the operating handle. The said one part adopts an integral structure or a split structure, and the other part adopts an integral structure or a split structure. And the integral structure and the split structure are further divided into two types: elastic structure and non-elastic structure. The upper and lower limiting structures have a common part with each other or are completely independently arranged with each other. Advantages: convenient operation, beneficial for placement, simple production, and convenient installation.

[0186] The "upper limit position" of the described upper limit position structure means that the mop rod moves upward relative to the operation handle and is fixed. At this time, the mop head 2 is located above the water squeezing port. Such a fixed situation is called the "upper limit position". The "lower limit position" of the described lower limit position structure means that the mop rod moves downward relative to the operation handle and is fixed. At this time, the water squeezing port is located above the mop head 2. Such a fixed situation is called the "lower limit position".

[0187] There can be many types of the second limit structure. The following are several preferred structures, and others are not listed one by one.

[0188] The first type:

[0189] The second limit structure includes two parts. One part is a convex block 34 protruding from the surface of the mop rod 1 and capable of lateral elastic deformation on both sides. The other part is a clamping portion provided on the operation handle 29. The clamping portion is provided with a bayonet along the axis of the mop rod 1. The bayonet allows the convex block 34 to elastically snap in from top to bottom along the axis of the mop rod 1 to achieve clamping and locking. Advantages: The limit is more reliable, the stability is high, and at the same time, it is beneficial to simple molds and low production costs.

[0190] The convex block 34 adopts a horizontally penetrating and hollow loop structure. Advantages: The structure is simple and compact, and at the same time, it is beneficial to production, with simple processes and convenient installation. In this example, the loop structure is horizontally narrow and long in the axial direction of the mop rod 1. The upper and lower ends of the loop structure are both provided with first guiding surfaces. Advantages: The loop structure is more stable and reliable, and the first guiding surfaces improve the guiding effect, which is more conducive to the loop structure snapping into the bayonet. The two sides of the loop structure are provided with protruding portions 35 parallel to the axis, and the top surface of the protruding portion 35 is a flat surface 57. Advantages: The limit is more reliable, the stability is high, and at the same time, for the protruding portion 35 parallel to the axis, its top surface is the flat surface 57, and the flat surface 57 is long and large in area along the axis direction. It is wear-resistant under extrusion during clamping and is beneficial for long-term use.

[0191] In this example, a split-type clamping portion is adopted, including an installation groove 36 provided on the operation handle 29 and a limit block 37 connected to the installation groove 36. Advantages: It is more convenient for production, simplifies the mold, and reduces costs. The installation groove 36 is arranged at the rear part of the inner wall at the lower end of the operation handle 29, and the installation groove 36, the mop rod 1, and the water squeezing port 3 are arranged in sequence from back to front. Advantages: This structure and position are more convenient for mold design, the structure distribution is more reasonable, and the structural compactness is better. The two sides or the rear side of the limit block 37 are provided with clamping platforms 38, or a combination of these two structures. Correspondingly, the corresponding parts of the installation groove 36 are provided with clamping interfaces 39. Advantages: It provides a preference, making the limit block 37 convenient for assembly, with reliable connection, simple structure, convenient production, and cost reduction.

[0192] Other structures can also be used to fix the limit block 37. For example, screws 42 can be used. Specifically: The limit block 37 is screwed and fixed to the inner side wall of the lower end of the operating handle 29. Two hollow cylindrical sections 40 are integrally provided on both sides of the rear section of the limit block 37. Two cavities 41 that can accommodate the hollow cylindrical sections 40 are provided at the corresponding positions of the installation groove 36. The limit block 37 is screwed and fixed through the screws 42 in the cavities 41. Then, it is sealed with a plug 78. The plug 78 can be made of rubber material. Additionally, soft materials such as silica gel, polyvinyl chloride, and polyurethane can also be used. Advantage: The fixation of the limit block 37 is more firm, and it is more stable and durable in use.

[0193] In this example, the limit block 37 is an integrally formed U-shaped block. The U-shaped entrance of the U-shaped block is a V-shaped entrance 43. A recess 44 is provided on each of the two inner sides of the middle part of the U-shaped block. The outside of the recess 44 is a solid. In this way, when the convex block 34 is inserted, the recess 44 is basically not deformed. It mainly squeezes the convex block 34 for relative fixation. This situation can be called a soft-hard fit. The recess 44 is called hard, and the convex block 34 is called soft because it can be elastically squeezed. Advantage: The parts on both sides of the bayonet form the U-shaped part described above. The outside of the recess 44 is a solid, which has the advantage of high strength, and the clamping and locking are more reliable.

[0194] The inner wall of the operating handle 29 is provided with an axial groove 45 that slidably cooperates with the convex block 34. The axial groove 45 provides a receiving space for the convex block 34, enabling it to move within the axial groove 45. At the same time, it is more conducive to the sleeving of the operating handle 29 and the mop rod 1, which can not only assist in axial positioning but also avoid looseness.

[0195] Second, compared with the first one, the main difference is that the outside of the recess 44 is not a solid, that is, perforations 77 are provided in the part outside the recess 44. In this way, when the convex block 34 is inserted and fitted, the recess 44 can be expanded. This situation can be called a soft-soft fit. That is to say, when the convex block 34 is inserted and fitted, the recess 44 and the protruding part 35 can elastically deform and engage with each other.

[0196] Third, compared with the first one, the main difference is that the convex block 34 and the first rod 56 are detachably connected. For example, the specific structure is that both ends of the convex block 34 along the axial direction of the first rod 56 are radially clamped to the first rod 56. In this example, clamping claws 82 are provided at the two ends, and the two clamping claws 82 are respectively clamped to the radial slots 83 of the first rod 56.

[0197] The fourth type: The second limiting structure includes two parts. One part is a convex part 74 that protrudes from the surface of the mop rod 1 and can be elastically deformed radially. The other part is a connecting part 75 provided on the operating handle 29. The connecting part 75 is provided with a channel for the convex part 74 to enter and exit, and the connecting part 75 is provided with a notch 76.1 that communicates with the channel and can be radially matched with the convex part 74. The convex part 74 and the notch 76.1 are radially matched to achieve relative locking between the two. The split-type connecting part 75 can also be similar to the clamping part and adopt the clamping cooperation of the clamping platform 38 and the clamping interface 39, or it can be fixed by screws 42. The convex part 74 can adopt various shapes. In this example, it is square, and it can also be a regular ellipsoid, an ellipse, a triangle, a polygon, a circle, etc. Advantages: The structure in which the convex part 74 and the notch 76.1 are radially matched has a strong limiting feel, is wear-resistant, has a simple production process, and low cost.

[0198] The integral structure is relative to the split structure. The difference is that the integral structure forms relevant structures integrally without assembly.

[0199] The fifth and sixth types:

[0200] The second limiting structure includes two parts. One part is a limiting depression 31 provided on the mop rod 1, and the other part is an elastic limiting member that is detachably connected to the operating handle 29. Or, one part is a limiting depression 31 provided on the operating handle 29, and the other part is an elastic limiting member provided on the mop rod 1. Advantages: The structure is simple and compact, and is also beneficial to production.

[0201] For the case where the elastic limiting member is provided on the operating handle 29, the elastic limiting member adopts an elastic plate 32 that forms a part of the outer shell of the operating handle 29. The inner surface of the elastic plate 32 is provided with a limiting protrusion 33. The elastic plate 32 is clamped to the operating handle 29. Advantages: The structure is simpler. Moreover, considering the problem of convenient production, that is, after the operating handle 29 and the mop rod 1 are installed, the elastic plate 32 can be installed. In other words, the above structure eliminates the problem of having to consider the installation of the limiting structure when installing the operating handle 29 and the mop rod 1. In addition, considering the flatness requirement of the outer shell of the operating handle 29, the above improvement achieves multiple technical effects with one action.

[0202] When the mop is not in use, the mop can be pulled up. The mop head 2 passes through the water squeezing port 3 and is located above the water squeezing port 3, that is to say, the mop head 2 is suspended. The present invention is provided with relevant structures to achieve this function, which is called the upper limiting structure. Specifically, the upper limiting structure utilizes the second limiting structure:

[0203] For the case of adopting the convex block 34:

[0204] The axial groove 45 is provided with a clamping section 46 which is clamped and fixed with the protrusion 34. The clamping section 46 is used to fix the protrusion 34 so that the mop head 2 folded on the mop rod 1 will not fall and press the extrusion part. The clamping section 46 is located at the upper tail of the axial groove 45. Both sides of the clamping section 46 adopt a narrowing structure, which is used to compress both sides of the protrusion 34 so that it is elastically tightened and fixed in the clamping section 46. Other structures may also be used. For example, a clamping section 46 is provided at the upper tail of the axial groove 45, and a narrowing structure is adopted on both sides of the clamping section 46. Two grooves 47 cooperating with the protrusions 35 on both sides of the protrusion 34 are respectively provided on the two side surfaces of the upper tail of the narrowing structure. The grooves 47 can cooperate with the protrusion 34 to achieve matching positioning. Advantages: the clamping positioning is in a non-extrusion state because the protrusions on both sides of the protrusion and the grooves of the narrowing structure are matched and positioned, and there is no long-term storage state of pressure deformation, which makes the service life of the circular protrusion longer, and will not cause failure and deformation and falling off, so that the positioning is more reliable and the performance is more stable.

[0205] For the case where the convex portion 74 is used:

[0206] The axial groove 45 is provided with a connecting section that is radially matched and fixed with the protrusion 74, and the connecting section is also provided with another passage for the protrusion 74 to enter and exit. The connecting section is provided with a communicating passage and another notch 76.2 that can radially match with the protrusion 74. The protrusion 74 and the other notch 76.2 are radially matched to achieve relative locking of the two, that is, to achieve an upper limit structure. The connecting section can be located at the upper tail of the axial groove 45.

[0207] Advantages: The above improvement can be called the upper positioning of the mop rod 1. When the mop is not in use, the mop can be pulled up, and the mop head is located above the squeezing outlet after passing through the squeezing outlet. In this way, when the mop board is placed vertically, the lower end surface 30 of the shell body where the squeezing outlet 3 is located is used as a supporting surface, and the placement is relatively stable. Moreover, the placement of the mop head 2 in the upright state is more conducive to protecting the mop head 2. Another feature of this structure is that the convex block 34 or the convex portion 74 and the axial groove 45 slidably matched therewith are utilized. The convex block 34 or the convex portion 74 is utilized to fix the operating handle 29 so as not to affect the mop head 2 in mopping the floor (i.e., the lower limit position), to fix the mop head 2 when not in use to avoid the mop head 2 squeezing the squeezing component in the squeezing outlet 3 (i.e., the upper limit position), and to push and pull the guide up and down. The structural design is ingenious and innovative, and multiple functions are achieved with fewer structures, which is a great improvement.

[0208] In the upper and lower limit structures, the integrated structure and the split structure can be selected for use, and the setting of the elastic structure can also be selected for use, such as Figures 40 to 45 As shown, Figures 59 to 60 shown.

[0209] For the upper limit structure, it can also be set independently. That is, when setting the upper limit structure, the relevant structures of the second limit structure are not adopted, but set independently. Advantages: The independently set upper limit structure does not require the cooperation of the bump 34, reducing the wear on the bump 34 and significantly extending the service life of the bump 34. In addition, the structure of the upper limit structure is very simple, facilitating production and assembly. For example, as Figure 62 、 63 shown:

[0210] The upper limit structure is set independently. The upper limit structure includes a mating protrusion 84 axially arranged along the mop rod 1 on the back of the mop head 2, and a mating opening 85 that cooperates with the mating protrusion 84 to achieve axial limit. The mating opening 85 is provided at the top of the lateral opening 86 of the operating handle 29; alternatively, the mating opening 85 is provided on the back of the mop head 2, and the mating protrusion 84 is provided at the top of the lateral opening 86 of the operating handle 29. In this example, it is the former.

[0211] A second limit block 50 is provided on the back of the mop head 2 and is rotatably connected to the lower end of the mop rod 1. The second limit block 50 is provided in the middle of the back of the mop head 2. The mating protrusion 84 is provided at the junction of the back of the mop head 2 and the upper side of the second limit block 50. Alternatively, vice versa, the mating opening 85 is provided at this junction. Advantage: In the upper limit state of the mop head 2, the above improvement is beneficial to reducing the overall center of gravity and making the mop more stable when placed. In this example, it is the former.

[0212] The so-called "provided on the back of the mop head 2" means provided on the back of the back plate 61 of the mop head 2; the shapes of the mating protrusion 84 and the mating opening 85 are mutually adapted, and the specific shapes can be the shape of an ohm symbol, a triangle, a regular rhombus, an ellipse, a circle, a regular polygon, etc.

[0213] A rotation limit structure is provided between the mop head 2 and the mop rod 1, and the rotation limit structure is used for positioning the mop head 2 when switching between two states. Advantage: It is convenient to use and is more conducive to the realization of hands-free washing.

[0214] The rotation limiting structure includes an elastic member 48, a first limiting block 49, and a second limiting block 50. The elastic member 48 and the first limiting block 49 are provided at the lower end of the mop rod 1. The elastic member 48 provides elastic force for the first limiting block 49. The second limiting block 50 is provided on the back surface of the mop head 2. The lower end of the mop rod 1 is rotatably connected to the second limiting block 50. The first limiting block 49 is provided with a first limiting surface 52. The second limiting block 50 is provided with a second limiting surface 53 and a third limiting surface 54 for cooperating with the first limiting surface 52. The second limiting surface 53 and the third limiting surface 54 are sequentially distributed along the circumferential direction of the rotation of the mop head 2. The second limiting surface 53 is arranged along the length direction of the mop head 2, and the third limiting surface 54 is arranged along the thickness direction of the mop head 2. The first limiting surface 52 can rotate from the second limiting surface 53 to the third limiting surface 54 under the action of an external force and re-cooperate with it to achieve the use states of cleaning and water squeezing, and vice versa, rotate from the third limiting surface 54 to the second limiting surface 53 and re-cooperate with it to achieve the use state of mopping the floor. In this example, the second limiting surface 53 and the third limiting surface 54 are both obtained by sequentially connecting involute arc surfaces around the pin shaft 51.

[0215] Advantages: The mop head 2 has a large rebound angle relative to the mop rod 1 and a good rebound effect. When the first limiting surface 52 cooperates with the second limiting surface 53 and the third limiting surface 54 respectively, multiple functions of cleaning, water squeezing and mopping the floor of the mop head 2 can be realized, and the operation and use are very convenient.

[0216] The elastic member 48 is a spring. The spring and the first limiting block 49 are movably arranged in the inner cavity at the lower end of the first rod 56. The inner end of the first limiting block 49 is provided with a convex column for fixing the lower end of the spring, and the other end is provided with the first limiting surface 52. The spring cooperates with the convex column at the inner end of the first limiting block 49 and provides elastic force for the first limiting block 49. The second limiting block 50 is arranged at the middle position on the back surface of the mop head 2. Two clamping pieces are provided at the lower end of the mop rod 1. The two clamping pieces and the second limiting block 50 are rotatably connected through a pin shaft 51. Advantages: The structure is compact, and the production and assembly are convenient.

[0217] A one-way flipping structure is also provided for controlling the mop head 2 to only flip towards the water squeezing port 3. Advantages: After flipping, the mop head 2 becomes a state where it is aligned with the water squeezing port 3 and can be cleaned and water squeezed. If there is no one-way flipping structure, the user may operate the mop head 2 to flip towards the rear side of the water squeezing port 3, so that the mop head 2 is not aligned with the water squeezing port 3. Therefore, after setting the one-way flipping structure, the mop head 2 will only flip towards the correct side, and the user can operate in a foolproof manner without special attention, and the use and operation are more convenient.

[0218] One of the one-way flipping structures is that a circumferential limiting protrusion 55 is provided at the end of the second limiting surface 53 along the thickness direction of the mop head 2, and the first limiting block 49 is provided with a mating surface that cooperates with the protrusion 55 for limiting. Advantage: With this setting, the first limiting block 49 can be prevented from rotating excessively, and the mop head 2 can be blocked and limited from flipping in the other direction. The structure is very simple, the limiting is stable and reliable, and it is very convenient for production and reduces production costs.

[0219] The one-way flipping structure can also be other structures. For example, the one-way flipping structure includes the first rod 56 of the mop rod 1 and the second limiting block 50. A plane 57 is provided on one side of each of the two sides of the U-shaped clip at the front end of the first rod 56 of the mop rod 1, and a corresponding protruding platform 58 is provided on the front side edge of the second limiting block 50. The platform 58 cooperates with the plane 57 to achieve rotational limiting. Better one-way limiting is achieved.

[0220] The mop head 2 includes a cleaning body 59, a substrate 60, and a back plate 61. The cleaning body 59 is fixedly connected to the substrate 60, such as by bonding or welding. The substrate 60 is located between the cleaning body 59 and the back plate 61, and the substrate 60 and the back plate 61 are detachably snap-connected. Advantage: It is not only quick and convenient to disassemble and install, but also has a simple structure and reliable limiting. Compared with the prior art, this structure omits components such as a middle partition plate, a button, and a return spring piece, saving a large number of parts and mold investments, and having lower production costs.

[0221] A number of first snap-connection parts 62 are provided on the back surface of the substrate 60. These first snap-connection parts 62 are all arranged along the length direction of the back surface of the substrate 60 and are distributed on both sides of the back surface of the substrate 60. Correspondingly, a second snap-connection part 63 that is snap-connected with the first snap-connection part 62 is provided on the inner side surface of the back plate 61. Advantage: The structure is simple, convenient for disassembly and assembly, relatively stable after snap-connection, and also convenient for production.

[0222] An elastic structure is provided between the substrate 60 and the back plate 61. The elastic structure includes: one end of the substrate 60 is set as a socket part 64, and the corresponding end of the back plate 61 is provided with an elastic part 65 that is inserted into the socket part 64. Advantage: The structure is simple, which is beneficial to convenient disassembly and assembly and also convenient for production.

[0223] The other end of the substrate 60 is provided with a limiting groove 66, and the corresponding other end of the back plate 61 is provided with a limiting block 67. The cooperation of the limiting groove 66 and the limiting block 67 can play a certain limiting role. This structure can be provided or not. Advantage: It can better connect the substrate 60 and the back plate 61, while being convenient for disassembly and assembly and also convenient for production.

[0224] The elastic part 65 is an elastic part 65 integrally formed with the back plate 61 or a separately provided elastic part 65. Advantage: The structure is simple and also convenient for production.

[0225] It further includes: The substrate 60 is provided with an elastic limit button 68 that can be pressed for use, and the backplane 61 is provided with a limit hole 69 corresponding to it for cooperation and limitation. The elastic limit button 68 is used to limit the movement of the substrate 60 along the length direction of the backplane 61. This structure can be provided or not. Advantage: After snap connection, the snap connection structure between the substrate 60 and the backplane 61 is more stable, and it is more convenient to replace, disassemble and clean the cleaning body 59.

[0226] The elastic limit button 68 is integrally formed on the substrate 60, and the elastic limit button 68 and the substrate 60 are in a semi-suspended structure connected at one end or a middle-suspended structure connected at both ends in the length direction. Advantage: The structure is more optimized. In addition, it is convenient for mold forming, simplifies production, and reduces costs.

[0227] Figure 22 It is the state where the mop head 2 is not inserted into the water squeezing port 3. At this time, the mop head 2 is located below the water squeezing port 3. Figure 23 It is the state where the mop head 2 has just been inserted into the water squeezing port 3 for water squeezing and cleaning. Figure 24 It is the intermediate state of water squeezing. Figure 25 Then it is the state where the mop head 2 exits in the opposite direction of the water squeezing direction. The insertion and withdrawal of the mop head 2 can be repeated.

[0228] The following gives an example of another hands-free mop using Embodiment 1:

[0229] A cleaning bucket of the present invention includes a bucket body 87 and a bucket cover 88. The bucket cover 88 is provided with a water squeezing port 3 for the mop head 2 to pass through and a water squeezing assembly arranged along the water squeezing route. The water squeezing assembly includes a parallelogram linkage mechanism and a water squeezing part. One side of the parallelogram linkage mechanism is used as the fixed side, and the other side is used as the swinging side. The swinging side is provided with a water squeezing part. The parallelogram linkage mechanism supports the up and down translational movement of the water squeezing part to realize the water squeezing and cleaning of the cleaning body 59 of the mop head 2.

[0230] In this example, the cleaning bucket is only provided with one water squeezing port 3. The mop head 2 shares the same water squeezing port 3 and the bucket body 87 during cleaning or water squeezing. The bucket body 87 is not partitioned, and the cleaning and water squeezing operations of the cleaning body 59 of the mop head 2 are carried out using the same bucket body 87.

[0231] In this example, a water squeezing device with Embodiment 1 is adopted. The body of the water squeezing device is a part of the bucket cover 88, that is, the part of the bucket cover 88 for installing the water squeezing assembly.

[0232] The lid 88 of the bucket is circumferentially provided with two button holes 94 symmetrically arranged around the center. At the corresponding positions on the bucket body 87, two elastic buttons 93 are respectively arranged. The elastic buttons 93 are in a semi-suspended structure with the lower end connected in the up and down direction or a middle-suspended structure with both ends connected in the horizontal direction. In this example, it is a semi-suspended structure with the lower end connected. This semi-suspended structure is integrally formed with the bucket body, so that sufficient elasticity and bearing capacity can be provided for the elastic buttons. Because when the two buttons are used to lift the cleaning bucket and move, they need to bear the weight of the whole cleaning bucket, mop and cleaning liquid. The lid 88 of the bucket and the bucket body 87 are detachably connected by elastic clamping of the elastic buttons 93 and the corresponding button holes 94.

[0233] The two button holes 94 are arranged along the width direction of the water squeezing port 3. The lid 88 of the bucket is provided with a handle 90 and a water pouring port 89. The handle 90 is arranged along the width direction of the water squeezing port 3, and the water pouring port 89 is arranged on the front side of the water squeezing port 3.

[0234] The handle 90 is an internal structure. This internal structure includes that the lid 88 of the bucket is provided with a storage groove 91 that cooperates with the retracted handle 90. Fixed columns 90.1 are arranged on the inner sides of the fixed ends on both sides of the handle 90, and the fixed columns 90.1 are rotationally and fixedly matched with the connection holes 90.2 located in the storage groove 91.

[0235] A guiding inclined surface 90.4 is arranged on one side of the fixed column 90.1 of the handle. An open guiding groove 90.3 is arranged on the inner side of the storage groove 91 and above the connection hole 90.2. The guiding inclined surface 90.4 of the fixed column corresponds to the open guiding groove 90.3 to realize elastic clamping assembly and rotational storage.

[0236] The elastic button 93 and the fixed column 90.1 are coaxially arranged.

[0237] A notch 92 for conveniently pulling up the handle 90 is opened in the middle of the inner side of the storage groove 91. The water squeezing port 3 is arranged in the middle. The handle 90 is located at the rear side of the water squeezing port 3, and the water pouring port 89 is located at the front side of the water squeezing port 3.

[0238] An arch-shaped elastic block 103 is arranged at the bottom of the bucket body 87, and both ends of the elastic block 103 are fixedly connected to the bottom of the bucket.

[0239] At least one guiding rib 102 is respectively arranged at both ends of the elastic block 103.

[0240] A fixed mounting groove 95 is circumferentially arranged on the outer side of the lid 88 of the bucket, and a corresponding fixed mounting part 96 is arranged on the part of the bucket body 87 that cooperates with the lid 88.

[0241] The middle of the bucket lid 88 is provided with a boss 97. The water squeezing port 3 is located in the boss 97. The circumferential direction of the boss 97 is provided with a guiding surface 98 for guiding the water to flow towards the boss 97. At least one water leakage port 99 is arranged at the connection of the guiding surface 98 and the circumferential side surface of the boss 97. In this example, the boss 97 is generally square, and one water leakage port 99 is distributed on each of the four side surfaces of the square. The guiding surface 98 adopts an inclined surface, and the inclined surface is used to drain the water towards the water leakage port 99.

[0242] The bucket lid 88 is provided with a circumferential concave part 100, and the bucket body 87 is provided with a circumferential convex part 101. The circumferential concave part 100 and the circumferential convex part 101 are sleeved and connected.

[0243] Another example of a hands-free mopping tool using the above-mentioned cleaning bucket is also provided, that is, another hands-free mopping tool. The hands-free mopping tool includes a mop rod and a mop head 2. The mop rod is connected to the mop head 2. The connection between the mop rod and the mop head 2 can form two states of the mop head 2, one is the unfolded state, and the other is the retracted state. It also includes the above-mentioned cleaning bucket. In the retracted state, the mop head 2 cooperates with the cleaning bucket to realize the water squeezing and cleaning of the cleaning body of the mop head 2.

[0244] When cleaning or squeezing water, rotate the mop head 2 to a state parallel to the mop rod; when cleaning, insert the mop head 2 into the water squeezing port 3 and move it up and down. The parallel four-bar linkage mechanism supports the up and down translational movement of the water squeezing part to realize the moving cleaning and cleaning of the cleaning body of the mop head 2; when squeezing water, pull the mop head 2 out of the water in the bucket body 87 through the water squeezing port 3 upwards. The parallel four-bar linkage mechanism supports the up and down translational movement of the water squeezing part to realize the moving cleaning and water squeezing of the cleaning body of the mop head 2; the mop head 2 shares the same water squeezing port 3 and cleaning bucket when cleaning or squeezing water.

[0245] The mop head 2 and the mop rod 1 can adopt the structure of the hands-free mopping tool as shown in Figure 15 etc. The difference is that there is no need to set relevant structures such as the operation handle 29.

[0246] Figure 76 It is the state where the mop head 2 is not inserted into the water squeezing port 3. At this time, the mop head 2 is located above the water squeezing port 3. Figure 77 It is the state where the mop head 2 has just been inserted into the water squeezing port 3 for water squeezing and cleaning. Figure 78 Then it is the state where the mop head 2 exits in the opposite direction of the water squeezing direction. The insertion and withdrawal of the mop head 2 can be operated repeatedly.

[0247] The above is only the preferred embodiment of the present invention. The directional description is only for clearly describing the relative position relationship and does not constitute a limitation on the protection scope of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A water squeezing component, characterized in that: It includes a parallelogram linkage and a water squeezing part. One side of the parallelogram linkage serves as the fixed side, and the other side serves as the swinging side. The water squeezing part is provided on the swinging side. The parallelogram linkage supports the water squeezing part to move up and down horizontally facing the opposite side, and the opposite side is the inner wall of the water outlet. The parallelogram linkage includes two U-shaped parts. The one located on the upper side is the first U-shaped part, and the one located on the lower side is the second U-shaped part. The rear parts of the first U-shaped part and the second U-shaped part are the fixed side of the parallelogram linkage, and the front parts of the first U-shaped part and the second U-shaped part are the swinging side of the parallelogram linkage.

2. The water squeezing assembly according to claim 1, wherein: The water squeezing part includes a first water squeezing area and a brushing and cleaning area. The first water squeezing area and the brushing and cleaning area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side; or, the water squeezing part includes a first water squeezing area, a brushing and cleaning area, and a second water squeezing area. The first water squeezing area, the brushing and cleaning area, and the second water squeezing area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side; or, the first water squeezing area, the second water squeezing area, and the brushing and cleaning area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

3. The water squeezing assembly according to claim 2, wherein: For the first water squeezing area and the second water squeezing area, a squeezing roller or a squeezing bar or a combination of the two aforementioned structures is adopted.

4. The water squeezing assembly according to claim 1, characterized in that: The water squeezing part includes a plurality of water squeezing areas. Each water squeezing area adopts a squeezing roller or a squeezing bar or a combination of the two aforementioned structures. Each water squeezing area is sequentially distributed from top to bottom and is arranged in a gradually receding manner relative to the opposite side.

5. The water squeezing assembly according to claim 2 or 4, characterized in that: One or more of the water squeezing areas are provided with a water guiding structure, or the brushing and cleaning area is provided with a water guiding structure, or a water guiding structure is provided between the two areas, or the aforementioned several situations are combined.

6. The water squeezing assembly according to claim 5, wherein: The water guiding structure adopts a water guiding hole, or a water guiding surface, or a structure with a water guiding hole in the front and a water guiding surface in the back in such a combined setting.

7. The water squeezing assembly according to claim 6, characterized in that: The end water guiding part of the water guiding surface is shaped to guide the water flow to flow away from the mop head.

8. The water squeezing assembly according to claim 1, characterized in that: The fixed side of the parallelogram linkage is arranged obliquely backward from top to bottom, and the two parallel swing rods of the parallelogram linkage are in a horizontal state in the initial state.

9. The water squeezing assembly according to claim 1, characterized in that: The parallelogram linkage is a self-resetting parallelogram linkage.

10. The water squeezing assembly according to claim 9, wherein: After the self-resetting parallelogram linkage is reset, the cross-section of the water outlet is in a small situation or the smallest situation.

11. The water squeezing assembly according to claim 1, characterized in that: The water squeezing part includes a water squeezing seat, and the water squeezing seat is an assembled part or an integral part.

12. The water squeezing assembly according to claim 11, wherein: The water squeezing seat is generally in a stepped shape. Taking the step as the boundary, the water squeezing seat is roughly divided into upper and lower parts. The lower part of the water squeezing seat is closer to the fixed side than the upper part of the water squeezing seat. The upper middle part, or the middle part, or the lower middle part, or the lower part of the said water squeezing seat is rotatably connected to the front part of the second U-shaped part, and the upper part of the water squeezing seat is rotatably connected to the front part of the first U-shaped part.

13. The water squeezing assembly according to claim 12, characterized in that: The upper part of the water squeezing seat is provided with a first water squeezing area, and the first water squeezing area is provided with a first squeezing roller. The lower part of the water squeezing seat is provided with a brushing and cleaning area.

14. The water squeezing assembly according to claim 2 or 13, characterized in that: The brushing and cleaning area includes an inclined part and a cleaning tooth part provided on the inclined part.

15. The water squeezing assembly according to claim 13, characterized in that: The lower end of the lower part of the water squeezing seat is provided with a second water squeezing area, and the second water squeezing area is provided with a second squeezing roller.

16. The water squeezing assembly according to claim 2 or 13, characterized in that: The first water squeezing area is also provided with a first squeezing bar. The first squeezing roller, the first squeezing bar, and the brushing and cleaning area are sequentially distributed from top to bottom and are arranged in a gradually receding manner relative to the opposite side.

17. The water squeezing assembly according to claim 16, wherein: The front end surfaces of the first squeezing bar and the cleaning tooth part are generally distributed on the same inclined plane.

18. The water squeezing assembly according to claim 16, characterized in that: The first water squeezing area is also provided with a second squeezing rib. The first squeezing roller, the second squeezing rib, the first squeezing rib, and the scraping and cleaning area are distributed in sequence from top to bottom, and are arranged in a gradually receding manner with respect to the opposite side. The distance between the second squeezing rib and the opposite side is greater than or equal to the distance between the first squeezing roller and the opposite side.

19. The water squeezing assembly according to claim 18, wherein: A water guiding structure is provided between the first squeezing roller and the second squeezing rib, or between the second squeezing rib and the first squeezing rib, or both are provided with water guiding structures.

20. The water squeezing assembly according to claim 1, wherein: It further includes a first limiting structure, which is used to limit the amplitude of the water squeezing part moving towards the opposite side during water squeezing.

21. The water squeezing assembly according to claim 20, characterized in that: The first limiting structure is a structure that limits the upward swing amplitude of the swing rod of the parallelogram linkage mechanism.

22. The water squeezing assembly according to claim 21, wherein: The first limiting structure includes bends provided on the two side arms of the first U-shaped member or transverse portions between the two side arms of the first U-shaped member, or bends provided on the two side arms of the second U-shaped member or transverse portions between the two side arms of the second U-shaped member, or both U-shaped members are provided with the said bends or transverse portions. When the two side arms swing to the upper limit position, the bends are in limiting cooperation with the two rear vertical portions of the water squeezing frame of the water squeezing device, and when the two side arms swing to the upper limit position, the transverse portions are in limiting cooperation with the transverse portion or vertical portion of the water squeezing frame of the water squeezing device or both.

23. The water squeezing assembly according to claim 11, wherein: The parallelogram linkage mechanism adopts a self-resetting structure: A tension spring is provided between the first U-shaped member and the water squeezing seat. The upper end of the tension spring is connected to a first connecting portion provided at the middle position of the first U-shaped member, and the lower end of the tension spring is connected to a second connecting portion provided at the lower part of the water squeezing seat.

24. The water squeezing assembly according to claim 11, characterized in that: The parallelogram linkage mechanism adopts a torsion spring structure: the said torsion spring structure is provided at the rotating part of the first U-shaped member, or at the rotating part of the second U-shaped member, or both are provided.

25. The water squeezing assembly according to claim 2 or 4, characterized in that: From a side view, the squeezing side of the water squeezing part includes a vertical section and a backward inclined section that are connected in sequence from top to bottom.

26. The water squeezing assembly according to claim 25, wherein: The first water squeezing area is provided in the vertical section, the scraping and cleaning area is provided in the backward inclined section, or there is also a second water squeezing area, the second water squeezing area is provided between the vertical section and the backward inclined section, or the second water squeezing area is provided at the lower end of the backward inclined section, or there is no scraping and cleaning area, and instead, a plurality of squeezing rollers are arranged in sequence along the backward inclined section.

27. The water squeezing assembly according to claim 26, wherein: The first water squeezing area includes a first squeezing roller and a first squeezing rib. The first squeezing rib is provided at the lower end of the vertical section. The rolling surface of the first squeezing roller protrudes relatively forward compared to the first squeezing rib. Drainage openings are provided below the first squeezing roller and behind the first squeezing rib.

28. A water squeezing device using the water squeezing component described in any one of claims 1 to 27, comprising a main body provided with a water squeezing outlet, characterized in that: The main body installs the said water squeezing assembly. The water squeezing part of the water squeezing assembly is located at the water squeezing port. The parallelogram linkage mechanism supports the water squeezing part to act on the cleaning body of the mop head inserted into the water squeezing port.

29. A hands-free mop using the water squeezing device described in claim 28, comprising a mop rod and a mop head, characterized in that: The said water squeezing device is movably connected to the mop rod relatively. In the state where the mop head is retracted, the said relatively movable connection realizes the relative movement between the mop head and the water squeezing assembly. Through the relative movement between the mop head and the water squeezing assembly, the water squeezing assembly acts on the cleaning body.

30. A cleaning bucket using the water squeezing device described in claim 28, comprising a bucket body, characterized in that: The barrel body is provided with the said water squeezing device.

31. The cleaning bucket according to claim 30, wherein: The barrel body is connected with a barrel cover part in a detachable or non-detachable manner, and the water squeezing device is installed on the barrel cover part.

32. A hands-free mop using the cleaning bucket described in claim 30 or 31, comprising a mop rod and a mop head, characterized in that: It further includes the aforesaid cleaning bucket. In the state where the mop head is retracted, the mop head and the cleaning bucket can be movably matched with each other. This relative movement cooperation enables relative movement between the mop head and the water squeezing assembly, and through the relative movement between the mop head and the water squeezing assembly, the water squeezing assembly acts on the cleaning body.

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