CN218978820U - Mop bucket for separating clean water and sewage - Google Patents

Abstract

The utility model belongs to the technical field of mop cleaning products, in particular to a mop bucket capable of separating clean water from sewage, which comprises a mop bucket body and a clean water bucket, wherein a positioning sleeve is integrally formed in the middle of the mop bucket body; a water guide cover is arranged above the water cleaning barrel; an impeller is arranged on the outer side of the cylinder body, a water inlet channel is formed between the impeller and the cylinder body, and water guide ribs are arranged on the impeller and/or the cylinder body; the impeller rotates, and liquid is pumped upwards along the water inlet channel under the pushing of the water guide rib; a positioning column for supporting the mop is arranged in the middle of the upper end of the impeller, and a positioning tooth part or a positioning bulge is arranged at the lower end or the side edge of the positioning column; the positioning sleeve and the cylinder body are mutually abutted, and the water purifying barrel can not rotate around the positioning sleeve. The utility model provides the mop bucket which has a simple and stable structure and is convenient to clean and separate clean water and sewage.

Description

Mop bucket for separating clean water and sewage

Technical Field

The utility model belongs to the technical field of mop cleaning products, and particularly relates to a mop bucket for separating clean water and sewage.

Background

The mop is an important cleaning article in daily life, and in order to enable the mop to be cleaned effectively, the mop is provided with a mop bucket, and the wiping articles on the mop head are cleaned through the mop bucket. Such as Chinese patent number CN202020725728.1, a mop bucket and a mop matched with the mop bucket. The mop bucket of this patent product has realized clear water sewage separation to, clear water bucket and mop bucket staving integrated into one piece, reduced the cost of mop bucket staving, but when its reduce cost, also produced the inconvenient problem of washing, especially the position in sewage district, the own sewage district is narrower, and the user's hand can't wash the corner position, forms and washs the dead point. There are mop barrels that the clear water barrel can put forward in the market, but its clear water barrel is set up on the mop barrel body, like chinese patent CN201610636310.1, it adopts the mode that the clear water barrel hung, because place the impeller in the clear water barrel, the user pushes down the mop down, so impeller and clear water barrel bear very big pressure, consequently clear water barrel need design very much reinforcing structure, clear water barrel manufacturing cost is high and there is the damage condition of long-term use.

Disclosure of Invention

The utility model aims to provide the mop bucket which has a simple and stable structure and is convenient to clean and separate clean water and sewage.

The purpose of the utility model is realized in the following way:

the mop bucket comprises a mop bucket body and a clean water bucket, wherein a positioning sleeve is integrally formed in the middle of the mop bucket body, a barrel body matched with the positioning sleeve is arranged in the middle of the clean water bucket, and the clean water bucket is sleeved on the positioning sleeve through the barrel body; a water guide cover is arranged above the clean water bucket, and liquid pumped out by the impeller flows into a sewage water storage area between the clean water bucket and the mop bucket body along the water guide cover;

an impeller is arranged on the outer side of the cylinder body, a water inlet channel is formed between the impeller and the cylinder body, and water guide ribs are arranged on the impeller and/or the cylinder body; the impeller rotates, and liquid is pumped upwards along the water inlet channel under the pushing of the water guide rib;

a positioning column for supporting the mop is arranged in the middle of the upper end of the impeller, and a positioning tooth part or a positioning bulge is arranged at the lower end or the side edge of the positioning column;

the positioning sleeve and the cylinder body are mutually abutted, and the water purifying barrel can not rotate around the positioning sleeve.

The positioning sleeve is provided with a first limiting end face, the barrel is provided with a second limiting end face, and when the barrel is inserted on the positioning sleeve, the first limiting end face and the second limiting end face are abutted against each other, so that relative rotation of the water cleaning barrel and the positioning sleeve is limited.

The positioning sleeve is provided with a slot, the cylinder body is provided with a convex rib, and when the cylinder body is inserted on the positioning sleeve, the convex rib is limited in the slot, so that the relative rotation of the water cleaning barrel and the positioning sleeve is limited.

A rotating shaft is arranged between the impeller and the positioning sleeve, and supports the impeller and enables the impeller to be suspended and rotatably connected to the rotating shaft.

A motor is arranged in the positioning sleeve and directly or indirectly drives the impeller to rotate; the battery is electrically connected with the circuit board and the motor.

The device comprises a base, wherein a motor, a battery and a circuit board are arranged in the base, and the battery is electrically connected with the circuit board and the motor; the base is provided with a transmission part, and the motor drives the transmission part to rotate; the impeller is provided with a driven part, the mop barrel body is arranged on the base, the transmission part is meshed with the driven part, and the motor can drive the impeller to rotate.

The driving part and the driven part are connected in a tooth surface meshing mode; the base is provided with a convex seat matched with the positioning sleeve, and the transmission part is positioned at the upper end of the convex seat.

The driven part comprises a transmission shaft, the transmission shaft penetrates through the positioning sleeve, an impeller is fixed at the upper end of the transmission shaft, and a driven fluted disc is fixed at the lower end of the transmission shaft; a sealing ring is arranged between the transmission shaft and the positioning sleeve;

the transmission shaft is provided with a step part, and a thrust bearing is arranged between the step part of the transmission shaft and the positioning sleeve; or the transmission shaft is fixed at the inner side of the positioning sleeve by the gland, and a thrust bearing is arranged between the gland and the step part.

The impeller comprises an impeller body and a water inlet seat which are mutually fixed, a plurality of longitudinal ribs are formed in the impeller body, oblique ribs are formed on the water inlet seat, and the longitudinal ribs and the oblique ribs form the water guide ribs; the side edge of the impeller is provided with a water outlet, and the liquid in the water inlet channel is sprayed outwards from the water outlet after impacting the end face of the upper end of the impeller body; and the water outlet of the impeller is higher than the water guide cover.

The water cleaning barrel is made of metal, and the bottom of the water cleaning barrel is abutted against the bottom of the mop barrel body; the water guide cover is fixedly provided with a cleaning brush.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. the impeller is supported by the positioning sleeve, and the force applied to the impeller in the process of cleaning the mop by a user is supported by the positioning sleeve, so that the clean water bucket is not loaded. The clean water and sewage separation is realized through the clean water barrel. The clean water is stored in the clean water bucket, and after the wiping objects of the mop head are washed by the liquid sprayed by the impeller, the clean water flows into a sewage storage area between the clean water bucket and the mop bucket body along the water guide cover. The user can put forward the water-cleaning bucket upwards, and the user can conveniently wash impeller, water-cleaning bucket and mop bucket staving.

2. The utility model adopts the integrally formed positioning sleeve to support the impeller, and has the following advantages: a. the structural stability of the integrally formed positioning sleeve is guaranteed, the assembly is convenient for a user, the user only needs to sequentially sleeve the water purifying barrel and the impeller on the positioning sleeve, and the assembly is convenient and the structure is stable; b. the positioning sleeve and the cylinder body are mutually abutted, the water purifying barrel cannot rotate around the positioning sleeve, and through positioning between the positioning sleeve and the cylinder body, the water purifying barrel can be positioned after being sleeved, so that the stability of the water purifying barrel is ensured, and the operation of a user is simple and the production cost is not increased additionally.

3. According to the utility model, the water inlet channel is formed between the impeller and the cylinder, a user only needs to sequentially sleeve the water cleaning barrel and the impeller, the water cleaning barrel and the impeller are supported by the positioning sleeve, the cylinder is used for guiding liquid, the structure of the impeller is simplified, and the production cost is reduced.

4. The impeller portion of the present utility model may be an electric or non-electric drive structure: a rotating shaft is arranged between the impeller and the positioning sleeve in a non-electric mode, and supports the impeller and enables the impeller to be suspended and rotationally connected to the rotating shaft; and the impeller is driven to rotate by a motor in an electric mode. Both modes can be realized, and the non-electric structure and the electric structure need to be installed correspondingly by repeatedly utilizing the positioning sleeve.

Drawings

FIG. 1 is a schematic view of the non-motor driven impeller of the present utility model;

FIG. 2 is one of the internal structural schematic views of the non-motor driven impeller of the present utility model;

FIG. 3 is a schematic view of the exploded construction of the non-motor driven impeller of the present utility model;

FIG. 4 is a schematic view of the internal structure of the motor driven impeller of the present utility model;

FIG. 5 is one of the schematic exploded construction views of the motor driven impeller of the present utility model;

FIG. 6 is a schematic view of the motor driven impeller of the present utility model;

FIG. 7 is a second schematic view of the internal structure of the motor driven impeller of the present utility model;

FIG. 8 is an enlarged schematic view of the structure at A of FIG. 7;

FIG. 9 is an enlarged schematic view of the structure at B of FIG. 7;

fig. 10 is a schematic view of a structure in which a mop bucket body and a base of the present utility model are separated;

FIG. 11 is a schematic view showing the internal structure of the mop bucket of the present utility model in a separated state from the base;

FIG. 12 is a second schematic view of an exploded construction of the motor driven impeller of the present utility model;

FIG. 13 is an enlarged schematic view of the structure at C of FIG. 12;

FIG. 14 is one of the schematic exploded construction views of the impeller portion of the present utility model;

FIG. 15 is a second schematic exploded view of the impeller portion of the present utility model;

FIG. 16 is one of the schematic structural views of the mop bucket and the clean water bucket of the present utility model;

fig. 17 is a second schematic view of the structure of the mop bucket body and the clean water bucket portion of the present utility model.

In the figure: 1-a mop bucket body; 11-positioning a sleeve; 111-a first limiting end face; 112-slots; 12-rotating shaft; 2-an impeller; 21-an impeller body; 211-positioning columns; 212-positioning teeth; 213-water outlet; 214-longitudinal ribs; 22-a water inlet seat; 221-oblique ribs; 23-a transmission shaft; 231-step;

24-driven fluted disc; 25-capping; 26-thrust bearings; 27-a sealing ring; 28-a transmission fluted disc; 29-a water inlet channel; 3-a water cleaning barrel; 31-a cylinder; 311-a second limiting end face; 312-ribs; 32-a water guiding cover; 33-cleaning brushes; 4-an electric motor; 41-a transmission fluted disc; 5-a circuit board; 6-cell; 9-a base; 91-boss.

Detailed Description

The utility model is further described in the following by way of specific embodiments with reference to the accompanying drawings, which are shown in fig. 1-17:

the utility model provides a clear water sewage separation's mop bucket, includes mop bucket staving 1 and clear water bucket 3, the middle part integrated into one piece of mop bucket staving 1 has positioning sleeve 11, clear water bucket 3 middle part be provided with positioning sleeve 11 complex barrel 31, clear water bucket 3 cup joints on positioning sleeve 11 through barrel 31, and impeller 2 supports through positioning sleeve 11, and the user washs the power that the in-process of mop acted on the impeller and supports through positioning sleeve 11, and clear water bucket 3 does not load. The water guide cover 32 is arranged above the clean water barrel 3, clean water is stored in the clean water barrel 3, and after the liquid sprayed by the impeller 2 washes the wiping objects of the mop head, the cleaning objects flow into a sewage storage area between the clean water barrel 3 and the mop barrel body 1 along the water guide cover 32, so that clean water and sewage separation is realized through the clean water barrel 3. The user can lift the clear water bucket 3 upwards, and the user can conveniently wash impeller 2, clear water bucket 3 and mop bucket body 1.

The outer side of the cylinder 31 is provided with an impeller 2, a water inlet channel 29 is formed between the impeller 2 and the cylinder 31, and the impeller 2 and/or the cylinder 31 are provided with water guide ribs; the impeller 2 rotates, liquid is pumped up along the water inlet channel 29 under the pushing of the water guide ribs, and the water guide ribs are preferably arranged on the impeller 2; the user only needs to sequentially sleeve the water cleaning barrel 3 and the impeller 2, supports by utilizing the positioning sleeve 11, and the barrel 31 conducts liquid diversion, so that the structure of the impeller 2 is simplified, and the production cost is reduced.

A positioning column 211 for supporting the mop is arranged in the middle of the upper end of the impeller 2. The mop is suspended and arranged in the mop barrel through the positioning column 211, and preferably, the lower end or the side edge of the positioning column 211 is provided with a positioning tooth part 212 or a positioning bulge, and the mop and the impeller 2 can synchronously rotate through the positioning tooth part 212 or the positioning bulge.

The positioning sleeve 11 and the cylinder 31 are abutted against each other, and the clean water barrel 3 can not rotate around the positioning sleeve 11. Through the location between the location sleeve 11 and the barrel 31, let the fresh water bucket 3 accomplish the location after cup jointing, guarantee the stability of fresh water bucket 3, user easy operation and extra not increase manufacturing cost.

The positioning sleeve 11 and the cylinder 31 comprise at least the following positioning modes: in mode 1, the positioning sleeve 11 is provided with a first limiting end surface 111, the cylinder 31 is provided with a second limiting end surface 311, and when the cylinder 31 is inserted into the positioning sleeve 11, the first limiting end surface 111 and the second limiting end surface 311 abut against each other, so as to limit the relative rotation of the fresh water bucket 3 and the positioning sleeve 11. The two are positioned by the way of abutting the surface against each other, so that the two are prevented from rotating relatively, as shown in fig. 16, a plurality of first limiting end faces 111 are arranged on the peripheral side of the positioning sleeve 11, and a plurality of second limiting end faces 311 are arranged on the cylinder 31. In mode 2, the positioning sleeve 11 is provided with a slot 112, the cylinder 31 is provided with a convex rib 312, and when the cylinder 31 is inserted on the positioning sleeve 11, the convex rib 312 is limited in the slot 112, so that the relative rotation of the water cleaning barrel 3 and the positioning sleeve 11 is limited. As shown in fig. 17, the positioning sleeve 11 is provided with at least one slot 112, and the cylinder 31 is provided with at least one rib 312. Of course, the positioning sleeve 11 and the cylinder 31 can be connected in a hard extrusion manner, or the positioning sleeve 11 and the cylinder 31 are connected by screw threads.

Preferably, the clean water bucket 3 is made of metal, preferably stainless steel. In the stamping forming process, the metal clean water barrel 3 is convenient to process the limiting end face and the slot, and is more suitable for product production. And, the bottom of the clean water bucket 3 is propped against the bottom of the mop bucket body 1, so that the load of the positioning sleeve 11 is reduced.

The impeller 2 comprises an impeller body 21 and a water inlet seat 22 which are mutually fixed, wherein a plurality of longitudinal ribs 214 are formed in the impeller body 21, oblique ribs 221 are formed on the water inlet seat 22, and the longitudinal ribs 214 and the oblique ribs 221 form the water guide ribs; in order to realize upward liquid pumping, the inclined ribs 221 are needed, but the arrangement of the inclined ribs 221 has higher requirement on injection molding processing and high production cost, so that the water inlet seat 22 is independently arranged, the inclined ribs 221 are arranged in the water inlet seat 22, the production cost is reduced, and the two independent parts can better process the inclined ribs 221 and the longitudinal ribs 214, thereby improving the processing precision. And the gap between the impeller 2 and the positioning sleeve 11 can be controlled through the water inlet seat 22, so that the shaking amplitude of the impeller 2 is reduced, and the use comfort is improved. The side edge of the impeller 2 is provided with a water outlet 213, and the liquid in the water inlet channel is sprayed outwards from the water outlet 213 after impacting the end face of the upper end of the impeller body 21; the water outlet 213 of the impeller 2 is higher than the water guiding cover 32. And the structure of the inclined ribs 221 is adopted, when the impeller 2 rotates in a designated direction, the impeller 2 can pump liquid upwards, and when the impeller 2 rotates in a designated opposite direction or does not rotate, the impeller 2 cannot pump liquid upwards. A cleaning brush 33 is fixed on the water guide cover 32, and the cleaning brush 33 is used for cleaning the wiping object of the mop head.

As shown in fig. 1-3, a metal rotating shaft 12 is disposed between the impeller 2 and the positioning sleeve 11, the rotating shaft 12 supports the impeller 2, and the impeller 2 is suspended and rotatably connected to the rotating shaft 12, or an independent rotating shaft is not required, and the end of the positioning sleeve is integrally formed with a supporting shaft. The impeller 2 is connected to the positioning sleeve 11 by means of the rotating shaft 12 in a non-electric mode. The structure is stable and simple without electric operation.

As shown in fig. 4-14, a motor 4 is arranged in the positioning sleeve 11, and the motor 4 directly or indirectly drives the impeller 2 to rotate. The electric structure product can simplify the operation of a user, and is cleaner, more intelligent and more convenient. Of course, the motor 4 can directly drive the impeller 2 to rotate, a gear structure can be installed between the motor 4 and the impeller 2, the motor is driven through a transmission gear, no gear transmission structure is identified in the drawing, a reduction gear structure or a planetary gear structure commonly used in the market can be adopted, and the aim of the gear structure is to be achieved: the transmission ratio between the motor and the impeller is reduced, or the output torque is increased. The motor structure is adopted, so that the cleaning and the drying can be realized by one driving motor, and when the motor rotates positively (defaults to the designated direction of the impeller), the impeller 2 can drive the mop head to rotate and pump liquid upwards, so that the centrifugal cleaning of the mop is realized; when the motor 4 is reversed, the impeller 2 can drive the mop head to rotate, but the impeller does not pump liquid upwards, so that the centrifugal spin-drying of the mop is realized.

Providing the motor drive portion may comprise: the structure 1 comprises a battery 6 and a circuit board 5, wherein the battery 6 is electrically connected with the circuit board 5 and the motor 4, and the battery 6, the circuit board 5 and the motor 4 are hidden and arranged in a positioning sleeve 11. The structure effectively utilizes the positioning sleeve 11 to mount electronic components, and optimizes the mounting space; the structure 2 comprises a base 9, a motor 4 is arranged in the base 9, a transmission part is arranged on the base 9, and the motor 4 drives the transmission part to rotate; the impeller 2 is provided with a driven part, the mop bucket body 1 is arranged on the base 9, the driving part is meshed with the driven part, and the motor 4 can drive the impeller 2 to rotate. The structure realizes the separation of the mop bucket and the motor base, and a user can move the mop bucket more conveniently. The two structures have the advantages, and manufacturers and consumers can select the two structures according to the needs.

The mop bucket of structure 2 can also be configured with the following structure: a. the transmission part and the driven part are connected in a tooth surface meshing mode, the tooth surface meshing mode is a better scheme, the meshing connection effect is better, and the transmission part and the driven part can be of a butt-inserted splicing structure; the base 9 is provided with a convex seat 91 matched with the positioning sleeve 11, and the transmission part is positioned at the upper end of the convex seat 91, and is positioned through the convex seat 91, so that a user can accurately place the mop bucket on the base 9. b. The driven part comprises a transmission shaft 23, the transmission shaft 23 penetrates through the positioning sleeve 11, a impeller 2 is fixed at the upper end of the transmission shaft 23, a driven fluted disc 24 is fixed at the lower end of the transmission shaft 23, the transmission fluted disc 41 is used as a preferable transmission part, and the transmission fluted disc 41 and the driven fluted disc 24 are mutually meshed to realize connection of the mop bucket and the base 9; a sealing ring 27 is arranged between the transmission shaft 23 and the positioning sleeve 11; c. the transmission shaft 23 is provided with a step part 231, and a thrust bearing is arranged between the step part 231 of the transmission shaft 23 and the positioning sleeve 11; alternatively, the thrust bearing 26 is provided between the gland 25 and the stepped portion 231, and the gland 25 fixes the drive shaft 23 inside the positioning sleeve 11, and includes the gland 25. The two thrust bearings 26 may be arranged in a manner that the thrust bearings 26 are arranged mainly to reduce friction between the drive shaft 23 and the positioning sleeve 11 and reduce resistance.

The control main board is an external cooperative part, and is sent to a circuit board manufacturer according to the requirement, the circuit board manufacturer can manufacture a corresponding circuit board according to the requirement, and only the size and the position of the mounting hole are given to the circuit board in the my, and the circuit board is taken to be mounted in the cavity. The switch is not marked in the application, and can be a contact switch, a mechanical switch, a vibration switch or a remote communication switch and the like which are directly arranged on the circuit board, so that a user touches the side wall of the mop bucket or the switch by feet, and the motor is started. The motor rotation is controlled by various switches on the market, and then the motor stops rotating after a certain time is easily realized by a person skilled in the art, and the circuit part is not the protection focus of the present utility model, so that it is not specifically described.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides a clear water sewage separation's mop bucket, includes mop bucket staving (1) and clear water bucket (3), its characterized in that: the middle part of the mop barrel body (1) is integrally formed with a positioning sleeve (11), the middle part of the clear water barrel (3) is provided with a barrel body (31) matched with the positioning sleeve (11), and the clear water barrel (3) is sleeved on the positioning sleeve (11) through the barrel body (31); a water guide cover (32) is arranged above the clean water barrel (3), and liquid pumped out by the impeller (2) flows into a sewage water storage area between the clean water barrel (3) and the mop barrel body (1) along the water guide cover (32);

an impeller (2) is arranged on the outer side of the cylinder body (31), a water inlet channel (29) is formed between the impeller (2) and the cylinder body (31), and water guide ribs are arranged on the impeller (2) and/or the cylinder body (31); the impeller (2) rotates, and liquid is pumped up along the water inlet channel (29) under the pushing of the water guide ribs;

a positioning column (211) for supporting the mop is arranged in the middle of the upper end of the impeller (2), and positioning teeth (212) or positioning protrusions are arranged at the lower end or the side edge of the positioning column (211);

the positioning sleeve (11) and the cylinder body (31) are mutually abutted, and the water purifying barrel (3) can not rotate around the positioning sleeve (11).

2. The mop bucket of claim 1, wherein the mop bucket is capable of separating clean water from sewage, and is characterized in that: the positioning sleeve (11) is provided with a first limiting end face (111), the barrel (31) is provided with a second limiting end face (311), and when the barrel (31) is inserted on the positioning sleeve (11), the first limiting end face (111) and the second limiting end face (311) are abutted against each other, so that relative rotation of the water cleaning barrel (3) and the positioning sleeve (11) is limited.

3. The mop bucket of claim 1, wherein the mop bucket is capable of separating clean water from sewage, and is characterized in that: the positioning sleeve (11) is provided with a slot (112), the cylinder body (31) is provided with a convex rib (312), and when the cylinder body (31) is inserted on the positioning sleeve (11), the convex rib (312) is limited in the slot (112), so that relative rotation of the water purifying barrel (3) and the positioning sleeve (11) is limited.

4. A mop bucket for separating clean water from sewage according to claim 1, 2 or 3, wherein: a rotating shaft (12) is arranged between the impeller (2) and the positioning sleeve (11), and the rotating shaft (12) supports the impeller (2) and enables the impeller (2) to be suspended and rotationally connected to the rotating shaft (12).

5. A mop bucket for separating clean water from sewage according to claim 1, 2 or 3, wherein: a motor (4) is arranged in the positioning sleeve (11), and the motor (4) directly or indirectly drives the impeller (2) to rotate; the motor also comprises a battery (6) and a circuit board (5), wherein the battery (6) is electrically connected with the circuit board (5) and the motor (4).

6. A mop bucket for separating clean water from sewage according to claim 1, 2 or 3, wherein: the device comprises a base (9), wherein a motor (4), a battery (6) and a circuit board (5) are arranged in the base (9), and the battery (6) is electrically connected with the circuit board (5) and the motor (4); a transmission part is arranged on the base (9), and the motor (4) drives the transmission part to rotate; the mop is characterized in that a driven part is arranged on the impeller (2), the mop barrel body (1) is arranged on the base (9), the transmission part is meshed with the driven part, and the motor (4) can drive the impeller (2) to rotate.

7. The mop bucket for separating clean water and sewage according to claim 6, wherein: the driving part and the driven part are connected in a tooth surface meshing mode; the base (9) is provided with a convex seat (91) matched with the positioning sleeve (11), and the transmission part is positioned at the upper end of the convex seat (91).

8. The mop bucket of claim 7, wherein the mop bucket is characterized by: the driven part comprises a transmission shaft (23), the transmission shaft (23) penetrates through the positioning sleeve (11), the impeller (2) is fixed at the upper end of the transmission shaft (23), and the driven fluted disc (24) is fixed at the lower end of the transmission shaft (23); a sealing ring (27) is arranged between the transmission shaft (23) and the positioning sleeve (11);

a step part (231) is arranged on the transmission shaft (23), and a thrust bearing is arranged between the step part (231) of the transmission shaft (23) and the positioning sleeve (11); or, the device comprises a gland (25), wherein the gland (25) is used for fixing the transmission shaft (23) on the inner side of the positioning sleeve (11), and a thrust bearing (26) is arranged between the gland (25) and the step part (231) of the transmission shaft.

9. The mop bucket for separating clean water from sewage according to claim 1 or 2 or 3 or 7 or 8, wherein: the impeller (2) comprises an impeller body (21) and a water inlet seat (22) which are mutually fixed, a plurality of longitudinal ribs (214) are formed in the impeller body (21), oblique ribs (221) are formed on the water inlet seat (22), and the longitudinal ribs (214) and the oblique ribs (221) form the water guide ribs; the side edge of the impeller (2) is provided with a water outlet (213), and the liquid in the water inlet channel (29) is sprayed outwards from the water outlet (213) after impacting the end surface of the upper end of the impeller body (21); and the water outlet (213) of the impeller (2) is higher than the water guide cover (32).

10. The mop bucket for separating clean water from sewage according to claim 1 or 2 or 3 or 7 or 8, wherein: the clean water barrel (3) is made of metal, and the bottom of the clean water barrel (3) is abutted against the bottom of the mop barrel body (1); a cleaning brush (33) is fixed on the water guide cover (32).

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