Siphon prevention structure of base station for cleaning robot

Abstract

The utility model discloses a cleaning robot base station anti-siphon structure which comprises a base station frame, and a clear water tank, a sewage tank, a placement bin and a power assembly are arranged on the base station frame. The power assembly comprises a water pump and a vacuum pump, the output end of the water pump is connected with the placement bin through a pipeline, the input end of the water pump is connected with one end of a three-way pipe through a pipeline, and the second end of the three-way pipe is connected with the clear water tank through a pipeline; the third end of the three-way pipe is connected with the one-way valve through a pipeline, the one-way valve is connected with the air outlet end of the vacuum pump through a pipeline, the air inlet end of the vacuum pump is connected with the sewage tank through a pipeline, the sewage tank is connected with the placement bin through a pipeline, and the vacuum pump can exhaust air from the air outlet end during working. The air flows pass through a pipeline, pass through a one-way valve, reach a three-way pipe and are respectively blown to the first end and the second end of the three-way pipe, so that an air chamber is formed in the internal space of the three-way pipe and near the peripheral pipeline, or water in the pipeline communicated with the second end is pushed back into the clear water tank, and the air pressure condition for generating siphonage is destroyed; and siphonage of the position of the water pump is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning components, and specifically relates to a structure for preventing siphon in a base station for a cleaning robot. Background Art

[0002] Currently, cleaning devices with autonomous cleaning functions usually consist of a cleaning machine and a base station. The base station includes a clean water tank, a sewage tank, a first pump body, and a second pump body. The first pump body extracts water from the clean water tank and transports it to the placement bin to clean the mop of the cleaning robot, and then the second pump body pumps the sewage in the placement bin into the sewage tank; however, after the cleaning is completed, the first pump body stops working. Due to other pressure reasons, the phenomenon of siphon occurs, and the water in the clean water tank will be continuously pumped out until it is emptied; currently, the common method is to set an electronic valve at the connection between the placement bin and the clean water pipe to control the switch, but the electronic valve is a vulnerable part and is prone to damage; or other anti-siphon structures are set, such as the Chinese patent publication document "CN220778274U, a base station with an anti-siphon structure", specifically, after the cleaning is completed, the pump assembly 13 is closed, and at the same time, the solenoid valve 6 is opened to allow air to enter the air inlet pipe 5. Since the end of the air inlet pipe 5 located in the anti-siphon chamber 4 is higher than the preset liquid level of the clean water tank 3, the liquid flowing into the anti-siphon chamber 4 is cut off at the air inlet pipe 5, thereby preventing the siphon effect.

[0003] No matter which method is used, it can effectively achieve the effect of preventing siphon, and this application proposes an anti-siphon solution different from the above structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a structure for preventing siphon in a base station for a cleaning robot to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A structure for preventing siphon in a cleaning robot base station includes a base station frame, on which a clean water tank, a sewage tank, a placement bin, and a power assembly are respectively arranged;

[0007] The power assembly includes a water pump and a vacuum pump. The output end of the water pump is connected to the placement bin through a pipeline, and the input end of the water pump is connected to one end of a three-way pipe through a pipeline. The second end of the three-way pipe is connected to the clean water tank through a pipeline;

[0008] The third end of the three-way pipe is connected to a check valve through a pipeline. The check valve is connected to the air outlet end of the vacuum pump through a pipeline. The air inlet end of the vacuum pump is connected to the sewage tank through a pipeline, and the sewage tank is connected to the placement bin through a pipeline.

[0009] A further technical solution further includes a peristaltic pump. The input end of the peristaltic pump is connected to a cleaning liquid storage tank through a pipeline, and the output end of the peristaltic pump is connected to the pipeline of the output end of the water pump through a pipeline.

[0010] A further technical solution is that a turbidity detection sensor is provided on the pipeline connecting the sewage tank and the placement bin.

[0011] A further technical solution is that a pipeline interface is provided at the upper end of the sewage tank. The pipeline connected to the intake end of the vacuum pump is detachably connected to the pipeline interface. The pipeline interface includes a fixing block. An intake pipe is passed through the fixing block and a rotating shaft is rotatably connected. The intake pipe is vertically arranged and the opening faces upward. A pressing cover is provided above the opening. The pressing cover is connected to the rotating shaft, and a floating member is fixedly connected to the rotating shaft. The floating member is suspended in the sewage tank.

[0012] A further technical solution is that rollers are provided on both sides of the placement bin.

[0013] Advantages of the present utility model:

[0014] When the vacuum pump of the present utility model works, it will discharge gas from the air outlet end. These airflows pass through the pipeline through the one-way valve to the tee, and are respectively blown to the first end and the second end of the tee, so as to form an air chamber inside the tee and near the surrounding pipelines, or push the water in the pipeline connected to the second end back into the clean water tank, thereby destroying the air pressure conditions for generating the siphon phenomenon, so that the siphon phenomenon will not occur at the position of the water pump;

[0015] In the prior art, a vacuum pump has been used as a negative pressure generator to absorb sewage, but the gas generated during the operation of the vacuum pump is directly discharged outside the base station. The present utility model utilizes the originally useless gas, and does not need to make great modifications to the original structure of the base station. The effect is good and the stability is high. Since there is no need to add structures or new devices in the base, for existing types of base stations, only simple modifications can achieve the same effect.

[0016] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the drawings

[0017] Figure 1 : Three-dimensional structure diagram of the present utility model.

[0018] Figure 2 : Pipeline connection structure diagram of the present utility model.

[0019] Figure 3 : Disassembly diagram of the sewage tank of the present utility model.

[0020] Figure numerals: 1-base station frame, 2-clean water tank, 31-sewage tank, 32-pipeline interface, 321-fixed block, 322-air inlet pipe, 323-rotating shaft, 324-pressure cover, 325-floating part, 4-placement bin, 41-roller, 51-water pump, 52-vacuum pump, 53-tee pipe, 54-check valve, 61-peristaltic pump, 62-cleaning liquid storage box, 7-turbidity detection sensor. Specific implementation method

[0021] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model.

[0022] Please refer to Figures 1-3 ;

[0023] The base station in the utility model is provided with an anti-siphon structure different from the prior art, and the same technical effect can be achieved without major changes to the existing structure; specifically, it includes a base station frame 1, and a clean water tank 2, a sewage tank 31, a placement bin 4 and a power assembly are provided on the base frame; it should be noted that since the base station in the utility model is used in the same way as the base station in the prior art, in this embodiment, except for the distinguishing features, other parts can refer to the structure in the prior art, for example, the placement bin 4 is used for storing and charging the cleaning robot, and for cleaning the corresponding mop, so the placement bin 4 has structures such as a water tank, a flow channel and a water outlet, which will not be described in detail;

[0024] In this embodiment, the power assembly includes a water pump 51 and a vacuum pump 52. The output end of the water pump 51 is connected to the placement bin 4 through a pipeline, and the input end of the water pump 51 is connected to one end of a three-way pipe 53 through a pipeline. The second end of the three-way pipe 53 is connected to the clean water tank 2 through a pipeline; the third end of the three-way pipe 53 is connected to a one-way valve 54 through a pipeline. The one-way valve 54 in this embodiment is connected in the direction of the water pump 51. The one-way valve 54 is connected to the air outlet end of the vacuum pump 52 through a pipeline, and the air inlet end of the vacuum pump 52 is connected to the sewage tank 31 through a pipeline, and the sewage tank 31 is connected to the placement bin 4 through a pipeline.

[0025] When it is necessary to clean, start the water pump 51. The water pump 51 extracts clean water from the clean water tank 2. The clean water flows to the water pump 51 through the first end and the second end of the three-way pipe 53. Due to the limitation of the one-way valve 54, the third end of the three-way pipe 53 is in a blocked state. The clean water flows from the output end of the water pump 51 into the placement bin 4 to clean the mop; after the cleaning is completed, when the water pump 51 stops operating, a siphon phenomenon will occur. At the same time, the vacuum pump 52 is started to suck the gas in the sewage tank 31, generating negative pressure inside it. The sewage in the placement bin 4 is pumped into the sewage tank 31 through the pipeline. When the vacuum pump 52 is working, it will discharge gas from the air outlet end. These airflows pass through the pipeline, pass through the one-way valve 54, and reach the three-way pipe 53, and are respectively blown to the first end and the second end of the three-way pipe 53, forming an air chamber inside the space of the three-way pipe 53 and near the surrounding pipelines, or pushing the water in the pipeline connected to the second end back into the clean water tank 2, thereby destroying the air pressure conditions for generating the siphon phenomenon. After the vacuum pump 52 stops working, due to the limitation of the one-way valve 54, the formed air chamber will not disappear, and no water will flow back into the vacuum pump 52, and the siphon phenomenon will not occur again, with high stability.

[0026] In the prior art, the vacuum pump 52 has been used as a negative pressure generator to absorb sewage, but the gas generated when the vacuum pump 52 works is directly discharged outside the base station. The utility model utilizes the originally useless gas, and does not need to make great modifications to the original structure of the base station. It has good effects and high stability. Since there is no need to add structures or new devices in the base, for the existing base stations of the existing models, only simple modifications can achieve the same effects, that is, only need to divide the pipeline at the water inlet end of the water pump 51 into two, and then connect it to the first end and the second end of the three-way pipe 53, and then connect the third end of the three-way pipe 53 to the one-way valve 54 and then connect it to the air outlet end of the vacuum pump 52.

[0027] In the embodiment of the utility model, a peristaltic pump 61 is further included. The input end of the peristaltic pump 61 is connected to the cleaning liquid storage tank 62 through a pipeline, and the output end of the peristaltic pump 61 is connected to the pipeline at the output end of the water pump 51. When cleaning is required, the cleaning liquid is pumped out by the peristaltic pump 61 and input into the pipeline at the output end of the water pump 51, and finally output from the placement bin 4 to clean the mop.

[0028] In the embodiment of the present utility model, a turbidity detection sensor 7 is provided on the pipeline connecting the sewage tank 31 and the placement bin 4. It should be noted that this embodiment should include a controller, which is electrically connected to the water pump 51, the vacuum pump 52, and the turbidity detection sensor 7 respectively, and is used to control the start and stop of these electronic components and signal transmission. Specifically, when it is necessary to recover sewage from the placement bin 4, it must pass through the turbidity detection sensor 7. The turbidity detection sensor 7 is used to detect the quality of the water. When the turbidity detection sensor 7 detects that the turbidity of the sewage is relatively high, the information will be first transmitted to the controller, and then the controller will trigger the water pump 51 multiple times to clean the mop multiple times. During this process, the sewage in the placement bin 4 will also be recovered and will pass through the turbidity detection sensor 7 again for detection. After the value detected by the turbidity detection sensor 7 is lower than the preset value, the next cleaning action will not be executed.

[0029] In addition, it is judged whether the area currently cleaned by the cleaning robot is clean according to the number of times of cleaning the mop and the turbidity of the water quality. For example, if the mop needs to be cleaned multiple times currently, it is judged that the area currently cleaned by the cleaning robot is relatively dirty. Therefore, the cleaning robot is controlled to execute the cleaning instruction for this area again, and so on in a cycle.

[0030] In the embodiment of the present utility model, the base station frame 1 is provided with placement positions adapted to the clean water tank 2 and the sewage tank 31. That is to say, the clean water tank 2 and the sewage tank 31 can be separated from the base station frame 1 for cleaning. Therefore, a pipeline interface 32 is provided at the upper end of the sewage tank 31. Corresponding to the base station frame 1, there are structures connected to the pipeline for recovering sewage and the intake end pipeline of the vacuum pump 52, which can be hermetically connected to the pipeline interface 32 on the sewage tank 31 respectively. The corresponding structure of the clean water tank 2 can also refer to the above structure.

[0031] In addition, the pipeline interface 32 includes a fixing block 321. The fixing block 321 is located at the upper end inside the sewage tank 31. An intake pipe 322 passes through the fixing block 321 and a rotating shaft 323 is rotatably connected. One end of the intake pipe 322 extending out of the sewage tank 31 is connected to the intake end of the vacuum pump 52. The intake pipe 322 is vertically arranged and the opening faces upward. A gland 324 is provided above the opening. The gland 324 is connected to the rotating shaft 323, and a floating member 325 is fixedly connected to the rotating shaft 323. The floating member 325 is suspended in the sewage tank 31. When the sewage tank 31 is not full, the floating member 325 rotates downward around the rotating shaft 323 under the action of gravity. In addition, the gland 324 will turn upward. At this time, the gland 324 is located above the opening. When the water tank is full, the floating member 325 rotates in the opposite direction around the rotating shaft 323 under the action of buoyancy, and the corresponding gland 324 will also rotate in the opposite direction to cover the opening. Preferably, a sealing gasket can be attached to the surface of the gland 324 to increase the sealing performance. At this time, the vacuum pump 52 cannot extract the gas in the sewage tank 31, and no more liquid will enter the sewage tank 31.

[0032] In the embodiment of the present utility model, rollers 41 are provided on both sides of the placement bin 4. Usually, the cleaning robot has an arc-shaped side, and the rollers 41 can be arranged to enable it to enter the placement bin 4 more smoothly.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for preventing siphoning of a base station for a cleaning robot, characterized in that: It comprises a base station frame (1), on which a clean water tank (2), a sewage tank (31), a placement compartment (4) and a power assembly are respectively provided; The power assembly comprises a water pump (51) and a vacuum pump (52); the output end of the water pump (51) is connected to the placement bin (4) via a pipeline; the input end of the water pump (51) is connected to one end of a three-way pipe (53) via a pipeline; and the second end of the three-way pipe (53) is connected to the clean water tank (2) via a pipeline; The third end of the three-way pipe (53) is connected to the one-way valve (54) through a pipeline, the one-way valve (54) is connected to the air outlet end of the vacuum pump (52) through a pipeline, the air inlet end of the vacuum pump (52) is connected to the sewage tank (31) through a pipeline, and the sewage tank (31) is connected to the placement bin (4) through a pipeline; The sewage tank (31) is provided with a pipe interface (32) at the upper end thereof, and the pipe connected to the air inlet end of the vacuum pump (52) is detachably connected to the pipe interface (32). The pipe interface (32) comprises a fixed block (321), an air inlet pipe (322) and a rotating shaft (323) are inserted through the fixed block (321), and the air inlet pipe (322) is rotatably connected thereto. The air inlet pipe (322) is vertically arranged with an opening facing upwards, and a pressure cover (324) is provided above the opening. The pressure cover (324) is connected to the rotating shaft (323), and a floating member (325) is fixedly connected to the rotating shaft (323), and the floating member (325) is suspended in the sewage tank (31).

2. The structure for preventing siphoning of a base station for a cleaning robot according to claim 1, characterized in that: It also comprises a peristaltic pump (61), the input end of the peristaltic pump (61) is connected to the cleaning liquid storage box (62) through a pipeline, and the output end of the peristaltic pump (61) is connected to the pipeline of the output end of the water pump (51) through a pipeline.

3. The structure for preventing siphoning of a base station for a cleaning robot according to claim 1, characterized in that: A turbidity detection sensor (7) is provided on the pipeline connecting the sewage tank (31) and the placement bin (4).

4. The structure for preventing siphoning of a base station for a cleaning robot according to claim 1, characterized in that: Rollers (41) are provided on both sides of the placement bin (4).

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