Water tank mechanism and sweeper

Abstract

The utility model discloses a water tank mechanism and a sweeper. The water tank mechanism comprises a water tank, a water suction pump, a water inlet pipe, a water suction pipe, a water supply pipe and an overflow pipe, a water tank water inlet, a water tank overflow port and a water tank water pumping port are formed in a tank body of the water tank, the water tank water inlet is higher than the water tank overflow port, a check valve is arranged at the water inlet end of the water inlet pipe, the water outlet end of the water inlet pipe is connected with the water tank water inlet, and the upper end of the overflow pipe is connected with the water tank overflow port; the water suction pump is located on the outer side of the water tank, the water suction pipe is connected between a water suction opening of the water tank and the water inlet end of the water suction pump, and the water inlet end of the water supply pipe is connected with the water outlet end of the water suction pump. According to the water tank mechanism and the sweeper, accessories are reduced, assembly is convenient, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping machines, in particular to a water tank mechanism and a sweeping machine. Background Art

[0002] With the development of technology, the sweeping machines on the market have evolved from wetting the mop at the base station and then mopping the floor to having their own water tank to replenish the mop with water in real time, which improves the machine's cleaning ability on the floor.

[0003] At present, the water tanks of sweepers on the market are equipped with a water replenishment pump and a water extraction pump to achieve water replenishment and water supply. The water replenishment pump is on the water inlet side of the water tank. When the sweeper enters the base station to replenish water, the water pump of the base station turns on and sends water to the water replenishment pump, and the water replenishment pump sends water to the water tank. On the one hand, the water replenishment pump plays the role of relay water replenishment, and on the other hand, it also prevents the water in the water tank from flowing back from the water inlet pipe. When the sweeper is mopping the floor, the water extraction pump turns on to send the water in the water tank to the mop. Since sweepers are generally small in size and thinner, the installation space of sweepers is limited, and the volume of the water tank is also limited. The design of using two water pumps not only takes up the space of the whole machine, but also leads to an increase in the cost of the whole machine.

[0004] In the prior art, a water level sensor is placed in the water tank to detect whether the water tank is full or short of water. However, if the volume of the water tank, the flow rate of the base station water pump and the water pump are known, the cost of the product will be increased if a water level sensor is specially configured. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provides a water tank mechanism and a sweeper, which are only equipped with a water pump. A check valve is arranged at the water inlet end of the water inlet pipe to prevent water in the water tank from being discharged from the water inlet pipe. There is no need to specially arrange a water replenishment pump to prevent backflow. In addition, the height of the water inlet of the water tank arranged on the box body is greater than the height of the overflow port of the water tank, and an overflow pipe is connected to the overflow port of the water tank. Even if water overflows during water replenishment, it will be discharged to the mop through the overflow pipe, and no water will be wasted. There is no need to arrange a water level sensor in the water tank. When replenishing water, only the replenishing time of the base station water pump needs to be set, which reduces the accessories of the water replenishment pump and the water level sensor, is conducive to cost saving, and reduces the probability of failure.

[0006] The technical solution of the utility model provides a water tank mechanism, comprising a water tank, a water pump, a water inlet pipe, a water pump pipe, a water supply pipe for supplying water to a mop, and an overflow pipe for draining water to the mop;

[0007] The water tank body is provided with a water tank inlet, a water tank overflow port and a water tank suction port, wherein the water tank inlet is higher than the water tank overflow port, a check valve is provided at the water inlet end of the water inlet pipe, the water outlet end of the water inlet pipe is connected to the water tank inlet, and the upper end of the overflow pipe is connected to the water tank overflow port;

[0008] The water pump is located outside the water tank, the water pumping pipe is connected between the water pumping port of the water tank and the water inlet end of the water pump, and the water inlet end of the water supply pipe is connected to the water outlet end of the water pump.

[0009] In one of the optional technical solutions, the water tank includes a main water tank and a secondary water tank connected to and communicated with the main water tank, wherein the secondary water tank is higher than the main water tank;

[0010] The water tank water inlet and the water tank overflow are arranged on the box body of the auxiliary water tank, and the water tank water inlet and the water tank overflow are both higher than the main water tank;

[0011] The water tank water inlet is arranged on the box body of the main water tank.

[0012] In one of the optional technical solutions, the inner surface of the water tank is provided with a diversion slope for guiding water toward the water inlet side of the water tank.

[0013] In one of the optional technical solutions, the water inlet of the water tank is connected to a water inlet joint, and the water outlet end of the water inlet pipe is connected to the water inlet joint; and / or,

[0014] The overflow port of the water tank is connected to an overflow port joint, and the upper end of the overflow pipe is connected to the overflow port joint; and / or,

[0015] The water tank water inlet is connected with a water inlet joint, and the water inlet end of the water pump pipe is connected with the water inlet joint.

[0016] In one of the optional technical solutions, the water outlet end of the water supply pipe is provided with a nozzle for spraying water downward.

[0017] In one of the optional technical solutions, the nozzle includes a nozzle body having a water spray channel, a conical contraction transition portion connected to the lower end of the nozzle body, and a trumpet-shaped nozzle connected to the lower end of the contraction transition portion.

[0018] In one of the optional technical solutions, the upper end of the nozzle body is connected to a adapter pipe for connecting to the water supply pipe.

[0019] In one of the optional technical solutions, the water supply pipe includes a first water supply pipe for supplying water to the first mop and a second water supply pipe for supplying water to the second mop.

[0020] In one of the optional technical solutions, the first water supply pipe and the second water supply pipe are equal in length.

[0021] The technical solution of the utility model also provides a sweeping machine, which includes the water tank mechanism described in any of the above technical solutions.

[0022] The above technical solution has the following beneficial effects:

[0023] The utility model provides a water tank mechanism and a sweeping machine, comprising a water tank, a water pump, a water inlet pipe, a water pump, a water supply pipe for supplying water to a mop, and an overflow pipe for draining water to the mop. A water tank water inlet, a water tank overflow, and a water tank water pumping port are provided on the water tank body. The water tank water inlet is higher than the water tank overflow port, and when the water is full, the water will be discharged to the mop through the water tank overflow port and the overflow pipe, without causing water waste. A check valve is provided at the water inlet end of the water inlet pipe to prevent backflow.

[0024] To sum up, the utility model provides a water tank mechanism and a sweeper, which are only equipped with a water pump. By arranging a check valve at the water inlet end of the water inlet pipe, the water in the water tank can be prevented from flowing back and discharged from the water inlet pipe. There is no need to specially arrange a water replenishment pump to prevent backflow. In addition, the height of the water inlet of the water tank arranged on the tank body is greater than the height of the overflow port of the water tank, and an overflow pipe is connected to the overflow port of the water tank. Even if water overflows during water replenishment, it will be discharged to the mop through the overflow pipe, and no water will be wasted. There is no need to arrange a water level sensor in the water tank. When replenishing water, only the replenishing time of the base station water pump needs to be set, which reduces the accessories of the water replenishment pump and the water level sensor, is conducive to cost saving, and reduces the probability of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0026] Figure 1 A three-dimensional diagram of a water tank mechanism provided by an embodiment of the utility model at a first viewing angle;

[0027] Figure 2 A three-dimensional diagram of a water tank mechanism provided by an embodiment of the utility model at a second viewing angle;

[0028] Figure 3 A three-dimensional diagram of a water tank mechanism provided by an embodiment of the utility model at a third viewing angle;

[0029] Figure 4 This is an exploded view of the water tank, water inlet pipe and overflow pipe;

[0030] Figure 5A schematic diagram showing that a water tank body is provided with a water tank water inlet, a water tank overflow port and a water tank water extraction port;

[0031] Figure 6 A three-dimensional diagram of the nozzle;

[0032] Figure 7 is a cross-sectional view of the nozzle;

[0033] Figure 8 A partial schematic diagram of a sweeping machine provided in one embodiment of the utility model;

[0034] Fig. 9 for Figure 8 Exploded diagram of

[0035] Fig.10 A schematic diagram of a mop, a mop drive mechanism and a water tank mechanism assembled together;

[0036] Fig.11 This is a schematic diagram of the water tank mechanism being installed on the rear side of the host panel;

[0037] Fig.12 for Fig.11 A stereogram from another perspective;

[0038] Fig.13 for Fig. 9 A magnified schematic diagram of area A in the middle. DETAILED DESCRIPTION

[0039] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. The same parts are represented by the same figure numbers. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] like Figure 1-5 and Figure 8-13 As shown, a water tank mechanism provided by an embodiment of the utility model includes a water tank 1, a water pump 2, a water inlet pipe 3, a water suction pipe 4, a water supply pipe 5 for supplying water to the mop 300 and an overflow pipe 6 for draining water to the mop 300.

[0041] A water tank water inlet 1-1, a water tank overflow port 1-2 and a water tank suction port 1-3 are provided on the water tank 1, wherein the water tank water inlet 1-1 is higher than the water tank overflow port 1-2, a check valve 7 is provided at the water inlet end of the water inlet pipe 3, the water outlet end of the water inlet pipe 3 is connected to the water tank water inlet 1-1, and the upper end of the overflow pipe 6 is connected to the water tank overflow port 1-2.

[0042] The water pump 2 is located outside the water tank 1 , the water pumping pipe 4 is connected between the water tank water pumping port 1 - 3 and the water inlet end of the water pump 2 , and the water inlet end of the water supply pipe 5 is connected to the water outlet end of the water pump 2 .

[0043] The utility model provides a water tank mechanism, which comprises a water tank 1, a water pump 2, a water inlet pipe 3, a water pump 4, a water supply pipe 5, an overflow pipe 6 and a check valve 7, etc.

[0044] The water tank 1 is a clean water tank in the sweeping machine, which is used to be installed on the base 100 of the sweeping machine. A mop 300 is arranged below the base 100 of the sweeping machine. When the sweeping machine is moving, the floor is cleaned by the mop 300. The water in the water tank 1 is used to supply the mop 300 to wet the mop 300 and improve the cleaning effect.

[0045] A water tank inlet 1-1, a water tank overflow port 1-2 and a water tank pumping port 1-3 are provided on the water tank 1. The water tank inlet 1-1 and the water tank overflow port 1-2 are generally provided on the box wall of the box body, and the water tank inlet 1-1 is higher than the water tank overflow port 1-2.

[0046] The water tank suction ports 1-3 can be selectively arranged on the tank wall of the tank body, or can be selectively arranged on the bottom plate or top plate of the tank body.

[0047] The water tank 1 can be provided in an integrated manner, or can be formed by connecting a bottom plate 11 and an upper cover 12 .

[0048] The check valve 7 is arranged at the water inlet end of the water inlet pipe 3 to prevent backflow. The check valve 7 can adopt an existing one-way valve. The water inlet end of the water inlet pipe 3 is used to connect to the main machine water inlet 201 at the front end through a pipeline. The water outlet end of the water inlet pipe 3 is connected to the water inlet 1-1 of the water tank.

[0049] Generally, the front of the sweeping machine is equipped with a host panel 200, which is installed at the front end of the base 100. The host panel 200 is equipped with a sensor, a host water inlet 201 and a control unit 202. After the water tank mechanism is assembled on the base 100, the water tank 1 is located at the rear side of the host panel 200, and the water inlet end of the water inlet pipe 3 is connected to the host water inlet 201 through a water pipe. The water pump 2 is connected to the control unit 202 through a wire. The control unit 202 can be a controller or a control circuit board. When the sweeping machine returns to the base station to replenish water, the water replenishment pipe of the base station will be inserted into the host water inlet 201, and the base station water pump will be turned on, and the water in the base station water tank can be replenished into the water tank 1 of the sweeping machine through the water inlet pipe 3. After the sweeper leaves the base station, the check valve 7 can prevent the water in the water tank 1 or the water in the water inlet pipe 3 from flowing back out from the water inlet end of the water inlet pipe 3, thereby preventing backflow. Therefore, there is no need to specially set a water replenishment pump at the water inlet end of the water inlet pipe 3 to prevent backflow. Since the water pressure required for replenishing the water tank 1 will not be too high, the required amount of replenishment is also limited and known. When the sweeper returns to the base station, the head of the base station replenishment pipe is directly inserted into the main unit water inlet 201, and the pipe between the two will not be too long. This also shows from another perspective that the base station water pump can fully meet the requirements for replenishing the water tank 1 of the sweeper, and no special water replenishment pump is required on the sweeper, thereby saving installation space and cost.

[0050] The water pump 2 is outside the water tank 1. Generally, the water pump 2 is arranged at the oblique rear side of the water tank 1. The water pump 2 is installed on the base 100 by screws. One end of the water pumping pipe 4 is connected to the water tank water pumping port 1-3. Depending on the specific position of the water tank water pumping port 1-3, one end of the water pumping pipe 4 can be inserted into the water tank 1 through the water tank water pumping port 1-3, or it can be only connected to the water tank water pumping port 1-3. The other end of the water pumping pipe 4 is connected to the water inlet end of the water pump 2. The water supply pipe 5 is used to supply water to the mop 300. One end of the water supply pipe 5 can be directly connected to the water outlet end of the water pump 2, or it can be connected to the water outlet end of the water pump 2 through a hose. A through hole or a joint is opened at the position corresponding to the mop 300 on the base 100, for the other end of the water supply pipe 5 to pass through or connect to supply water to the mop 300.

[0051] The upper end of the overflow pipe 6 is connected to the overflow port 1-2 of the water tank, and the lower end of the overflow pipe 6 extends downward. A through hole or joint is provided on the base 100 corresponding to the mop 300 and the overflow pipe 6, for the lower end of the overflow pipe 6 to pass through or connect to drain water to the mop 300.

[0052] Since the overflow port 1-2 of the water tank is lower than the water inlet 1-1 of the water tank, the overflow port 1-2 of the water tank begins to overflow before the water tank 1 is fully filled, and the overflowed water is discharged to the mop 300 through the overflow pipe 6, which plays a role in wetting the mop 300, and does not cause water waste. Before the water tank 1 is fully filled, the overflow port 1-2 of the water tank begins to overflow, and the water inlet 1-1 of the water tank is higher than the overflow port 1-2 of the water tank, so the water pressure in the water inlet pipe 3 is not too large, and the check valve 7 is not opened.

[0053] Regarding the solution of whether the water tank 1 is filled with water, the following explanation is made:

[0054] The volume V0 of the water tank 1, the unit water replenishment volume Q0 of the base station water pump and the unit water pumping volume q0 of the water pump 2 when the sweeper is mopping the floor are known.

[0055] When the water tank 1 is replenished for the first time, the required replenishment time is t0=V0 / Q0. In order to ensure that the water is fully replenished, the base station water pump can be turned off with a delay of 2-5 seconds. The opening and closing of the base station water pump can be manually operated or automatically controlled. The excess water will be discharged to the mop 300 through the overflow pipe 6.

[0056] When the sweeper is mopping, assuming the mopping time is t1, the water pumping amount Q1 of the pumping pump 2 during this period is Q1=t1×q0. The control unit of the base station or the control unit 202 of the sweeper receives the above information and calculates the water consumption Q1 of this mopping.

[0057] When the sweeper returns to the base station for water replenishment, the base station water pump replenishes the sweeper with the amount of Q1. The replenishment time can be calculated by the control unit of the base station or the control unit 202 of the sweeper, and the replenishment time t2 = Q1 / Q0. As needed, the base station water pump can be turned off after a delay of 2-5 seconds, and the excess water will be discharged to the mop 300 through the overflow pipe 6.

[0058] In summary, the utility model provides a water tank mechanism, which is only equipped with a water pump 2. By arranging a check valve 7 at the water inlet end of the water inlet pipe 3, the water in the water tank 1 can be prevented from flowing back and discharged from the water inlet pipe 3, and there is no need to specially set up a water replenishment pump to prevent backflow. In addition, the height of the water tank water inlet 1-1 arranged on the box body is greater than the height of the water tank overflow port 1-2, and the water tank overflow port 1-2 is connected to the overflow pipe 6. Even if water overflows during water replenishment, it will be discharged to the mop 300 through the overflow pipe 6, and no water will be wasted. There is no need to set a water level sensor in the water tank 1. When replenishing water, only the replenishing time of the base station water pump needs to be set, which reduces the accessories of the water replenishment pump and the water level sensor, is conducive to cost saving, and reduces the probability of failure.

[0059] In one embodiment, if Figure 1-5As shown, the water tank 1 includes a main water tank 13 and a subsidiary water tank 14 connected to and communicated with the main water tank 13 , wherein the subsidiary water tank 14 is higher than the main water tank 13 .

[0060] The water tank water inlet 1 - 1 and the water tank overflow port 1 - 2 are arranged on the tank body of the auxiliary water tank 14 , and the water tank water inlet 1 - 1 and the water tank overflow port 1 - 2 are both higher than the main water tank 13 .

[0061] The water tank suction ports 1-3 are arranged on the body of the main water tank 13.

[0062] In this embodiment, the water tank 1 is divided into a main water tank 13 and a secondary water tank 14. The secondary water tank 14 and the main water tank 13 are connected and communicated. The two can be set as one body or connected separately. The transverse area of ​​the main water tank 13 is larger than the transverse area of ​​the secondary water tank 14. The secondary water tank 14 is higher than the main water tank 13. The top of the main water tank 13 can be used to install other devices, such as the mop drive mechanism 400.

[0063] The water tank inlet 1-1 and the water tank overflow port 1-2 are arranged on the body of the auxiliary water tank 14. Since the water tank overflow port 1-2 is relatively high and the lateral area of ​​the auxiliary water tank 14 is relatively small, even if water overflows, it will not overflow too much. The water tank pumping port 1-3 is arranged on the body of the main water tank 13. When pumping water, water is mainly pumped from the main water tank 13, and the water in the auxiliary water tank 14 will be replenished into the main water tank 13 accordingly.

[0064] In one embodiment, if Figure 5 As shown, the inner surface of the water tank 1 is provided with a diversion slope 1-4 for guiding water toward the water tank suction port 1-3, which is conducive to guiding the water to the water tank suction port 1-3 to be completely sucked dry, and preventing the water in the water tank 1 from deteriorating and stinking when the user does not use it for a long time. The diversion slope 1-4 is a slope surface provided on the bottom plate 11 of the water tank 1, and the slope can be selected to be about 5°.

[0065] In one embodiment, if Figure 1-5 As shown, the water tank water inlet 1-1 is connected to the water inlet connector 15, the water outlet end of the water inlet pipe 3 is connected to the water inlet connector 15, and / or,

[0066] The water tank overflow port 1-2 is connected to an overflow port joint 16, the upper end of the overflow pipe 6 is connected to the overflow port joint 16, and / or,

[0067] The water tank water inlet 1 - 3 is connected to a water inlet joint 17 , and the water inlet end of the water inlet pipe 4 is connected to the water inlet joint 17 .

[0068] In this embodiment, the water tank water inlet 1-1, the water tank overflow port 1-2, and the water tank water extraction port 1-3 are configured with corresponding water inlet joints 15, overflow port joints 16, and water extraction port joints 17 for connection with corresponding water pipes.

[0069] The water inlet joint 15, the overflow joint 16 and the water extraction joint 17 are respectively provided with a protrusion structure or a thread structure for preventing the pipe from retreating.

[0070] As required, the water inlet joint 15 can be set as a linear structure, one end of which is inserted into the water inlet 1-1 of the water tank, and the other end is connected to the water outlet end of the water inlet pipe 3. The overflow joint 16 can be set as an L-shaped structure, one end of which is inserted into the overflow port 1-2 of the water tank, and the other end extends downward and is connected to the upper end of the overflow pipe 6. The water suction port joint 17 can be set as an L-shaped structure, one end of which passes through the water tank suction port 1-3 and extends into the bottom of the water tank 1, and the other end of which is connected to the water inlet end of the suction pipe 4.

[0071] In one embodiment, if Figure 2-3 As shown, a nozzle 8 for spraying water downward is provided at the water outlet end of the water supply pipe 5 , which is used to spray water toward the mop 300 to better wet the mop 300 .

[0072] In one embodiment, if Figure 6-7 As shown, the nozzle 8 includes a nozzle body 81 having a water spray channel 811 , a conical contraction transition portion 82 connected to the lower end of the nozzle body 81 , and a trumpet-shaped nozzle 83 connected to the lower end of the contraction transition portion 82 .

[0073] In this embodiment, the nozzle body 81, the contraction transition part 82 and the trumpet-shaped nozzle 83 are connected in sequence, and the three can be integrally formed into the nozzle 8. A vertical water spray flow channel 811 is provided in the nozzle body 81, a conical cavity 821 is provided in the contraction transition part 82, and the trumpet-shaped nozzle 83 is provided at the bottom of the conical cavity 821. The trumpet-shaped nozzle 83 is connected to the bottom of the conical cavity 821 by a fine hole 822. The water flowing down the water spray flow channel 811 is pressurized by the conical cavity 821, and then discharged into the trumpet-shaped nozzle 83 through the fine hole 822, and finally sprayed out from the trumpet-shaped nozzle 83 to increase the spraying area and wet the mop 300 more evenly.

[0074] In one embodiment, if Figure 6-7 As shown, the upper end of the nozzle body 81 is connected with a transfer pipe 84 for connecting with the water supply pipe 5, so as to be connected with the water supply pipe 5. The transfer pipe 84 has an anti-dropping protrusion or a threaded structure.

[0075] A joint lug plate 86 is provided on the side of the adapter pipe 84 that is connected to the nozzle body 81, and a main body lug plate 85 is provided on the nozzle body 81. The joint lug plate 86 is connected to the main body lug plate 85 by screws.

[0076] like Fig.13As shown, a fixing sleeve 101 and two connecting sleeves 102 are provided on the base 100, and the bottom of the fixing sleeve 101 is open and faces the mop 300. The nozzle body 81 is fixed in the fixing sleeve 101, and the trumpet-shaped nozzle 83 extends downward from the bottom opening of the fixing sleeve 101. The joint ear plate 86 and the main body ear plate 85 are fixed at the positions of the two connecting sleeves 102 by screws.

[0077] In one embodiment, if Figure 2-3 and Fig.10 As shown, the water supply pipe 5 includes a first water supply pipe 51 for supplying water to the first mop 301 and a second water supply pipe 52 for supplying water to the second mop 302 .

[0078] In this embodiment, if the mop 300 of the sweeping machine includes a first mop 301 and a second mop 302 arranged at intervals on the left and right, the water supply pipe 5 is correspondingly divided into a first water supply pipe 51 and a second water supply pipe 52, and the water inlet end of the first water supply pipe 51 and the water outlet end of the water pump 2 can be connected through a three-way valve. When the water pump 2 is turned on, the first water supply pipe 51 is used to supply water to the first mop 301, and the second water supply pipe 52 is used to supply water to the second mop 302.

[0079] In one embodiment, the lengths of the first water supply pipe 51 and the second water supply pipe 52 are equal. When replenishing water, the water replenishment amounts of the first mop 301 and the second mop 302 are roughly equal, thereby avoiding the phenomenon that the water replenishment amount of the first mop 301 / second mop 302 is too much and the water replenishment amount of the second mop 302 / first mop 301 is too little.

[0080] like Figure 8-13 As shown, a sweeping machine provided by one embodiment of the utility model includes the water tank mechanism described in any of the aforementioned embodiments.

[0081] The sweeping machine includes a base 100, a main body panel 200, a mop 300, a mop driving mechanism 400 and the like.

[0082] The host panel 200 is installed at the front end of the base 100, and the water tank 1 is installed on the base 100 and is located at the rear side of the host panel 200. The host panel 200 is equipped with a sensor, a host water inlet 201 and a control unit 202. The water inlet end of the water inlet pipe 3 is connected to the host water inlet 201 through a hose.

[0083] The mop cloth 300 is located below the base 100 and is connected to the base 100 via a pivot shaft. The mop cloth driving mechanism 400 is installed on the base 100, and can be installed on the water tank 1 or other positions of the base 100. The mop cloth driving mechanism 400 can be a motor driving mechanism. The output end of the mop cloth driving mechanism 400 is connected to the pivot shaft in a transmission manner, thereby driving the mop cloth 300 to rotate to mop the floor.

[0084] like Fig.13 As shown, a drain pipe 103 is provided on the base 100 , and the bottom opening of the drain pipe 103 faces the mop 300 below. The lower end of the overflow pipe 6 is connected to the drain pipe 103 .

[0085] like Fig.13 As shown, a fixing sleeve 101 is provided on the base 100, and the bottom of the fixing sleeve 101 is open and faces the mop 300. The water outlet end of the water supply pipe 5 can be inserted into the fixing sleeve 101, or can extend from the bottom opening of the fixing sleeve 101. If the water outlet end of the water supply pipe 5 is provided with a nozzle 8, the nozzle 8 is installed in the fixing sleeve 101.

[0086] For the contents about the movement, control, base station water replenishment and mop lifting of the sweeping machine, please refer to the introduction in the prior art. It is not the invention point of this case and will not be described in detail here.

[0087] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0088] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.

Claims

1. A water tank mechanism, characterized in that: It includes a water tank, a water pump, a water inlet pipe, a water suction pipe, a water supply pipe for supplying water to the mop, and an overflow pipe for draining water to the mop; The water tank body is provided with a water tank inlet, a water tank overflow port and a water tank suction port, wherein the water tank inlet is higher than the water tank overflow port, a check valve is provided at the water inlet end of the water inlet pipe, the water outlet end of the water inlet pipe is connected to the water tank inlet, and the upper end of the overflow pipe is connected to the water tank overflow port; The water pump is located outside the water tank, the water pumping pipe is connected between the water pumping port of the water tank and the water inlet end of the water pump, and the water inlet end of the water supply pipe is connected to the water outlet end of the water pump.

2. The water tank mechanism according to claim 1, characterized in that: The water tank comprises a main water tank and a secondary water tank connected to and in communication with the main water tank, wherein the secondary water tank is higher than the main water tank; The water tank water inlet and the water tank overflow are arranged on the box body of the auxiliary water tank, and the water tank water inlet and the water tank overflow are both higher than the main water tank; The water tank water inlet is arranged on the box body of the main water tank.

3. The water tank mechanism according to claim 1, characterized in that: The inner surface of the water tank is provided with a diversion slope for guiding water toward the water inlet side of the water tank.

4. The water tank mechanism according to claim 1, characterized in that: The water inlet of the water tank is connected to a water inlet joint, and the water outlet end of the water inlet pipe is connected to the water inlet joint; and / or, The overflow port of the water tank is connected to an overflow port joint, and the upper end of the overflow pipe is connected to the overflow port joint; and / or, The water tank water inlet is connected with a water inlet joint, and the water inlet end of the water pump pipe is connected with the water inlet joint.

5. The water tank mechanism according to claim 1, characterized in that: The water outlet end of the water supply pipe is provided with a nozzle for spraying water downwards.

6. The water tank mechanism according to claim 5, characterized in that: The nozzle comprises a nozzle body having a water spraying channel, a conical contraction transition portion connected to the lower end of the nozzle body, and a trumpet-shaped nozzle connected to the lower end of the contraction transition portion.

7. The water tank mechanism according to claim 6, characterized in that: The upper end of the nozzle body is connected with a switching pipe joint for connecting with the water supply pipe.

8. The water tank mechanism according to any one of claims 1 to 7, characterized in that: The water supply pipe includes a first water supply pipe for supplying water to the first mop and a second water supply pipe for supplying water to the second mop.

9. The water tank mechanism according to claim 8, characterized in that: The first water supply pipe and the second water supply pipe are equal in length.

10. A sweeping machine, characterized in that: It comprises a water tank mechanism as claimed in any one of claims 1 to 9.

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