CN211749359U - Suction device - Google Patents

Abstract

The utility model discloses a suction device is equipped with the suction nozzle, with the mixture flow channel of suction nozzle intercommunication, with the separation chamber of mixture flow channel intercommunication, with the stock solution space of separation chamber intercommunication, with the gas flow channel of separation chamber intercommunication, with the foreign matter warp suction nozzle suction device's suction module, suction module sets up in the mixture flow channel, is close the suction nozzle. The utility model discloses arrange suction module in near mixture flow channel of suction nozzle, suction module inhales the outside mixture of suction device through a segment and suction nozzle in the mixture channel to discharge in the separation chamber. The distance for sucking the mixture is short, the separation cavity is arranged at the rear part of the suction module, and the wind resistance is small. Therefore, the suction intensity is high and the suction efficiency is high.

Description

Suction device

Technical Field

The utility model relates to a cleaning equipment, concretely relates to hard surface's cleaning equipment.

Background

Cleaning of hard surfaces, such as glass walls, requires a cleaning solution to separate the dirt from the hard surface and a suction device to absorb the separated dirt and cleaning solution. In order to make the suction device normally operate, the suction device is provided with an exhaust structure, and the cleaning liquid mixed with dirt needs to be contained by a container.

In the prior art, a suction module driven by a motor is generally disposed in the gas flow channel, or in the tail part of the gas flow channel, communicating with the gas flow channel, wherein the substance flowing in the gas flow channel is gas after liquid separation, and the mixture flow channel before gas and liquid separation is connected to the front end of the gas flow channel, for example, a portable hard surface suction device described in WO 2009/086891a 1. Thus, the suction module is far from the suction port. In addition, the separating device is arranged in front of the suction module, and the wind resistance is large. This results in a low suction strength and a low suction efficiency of the suction device.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: the suction strength of the hard surface suction device is improved.

In order to solve the technical problem, the utility model provides a following technical scheme: a suction device is provided with a suction nozzle, a mixture flow channel communicated with the suction nozzle, a separation cavity communicated with the mixture flow channel, a liquid storage space communicated with the separation cavity, an air flow channel communicated with the separation cavity, and a suction module for sucking external substances into the suction device through the suction nozzle, wherein the suction module is arranged in the mixture flow channel between the suction nozzle and the separation cavity, the suction nozzle is in fluid connection with a negative pressure channel of the suction module, and the separation cavity is in fluid connection with a positive pressure channel of the suction module.

The utility model discloses arrange suction module in near mixture flow channel of suction nozzle, suction module inhales the outside mixture of suction device through a segment and suction nozzle in the mixture channel to discharge in the separation chamber. The distance for sucking the mixture is short, the separation cavity is arranged at the rear part of the suction module, and the wind resistance is small, so the suction intensity is high, and the suction efficiency is high.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic view of a suction device;

FIG. 2 is a partial cross-sectional view of FIG. 1;

fig. 3 is a schematic view of the valve 70 of fig. 1.

The symbols in the drawings illustrate that:

10. a suction nozzle; 11. an inlet of the suction nozzle;

20. a mixture flow channel; 21. a cylindrical chamber; 22. an outlet end of the mixture flow channel;

30. a separation chamber;

40. a gas flow channel; 41. an inlet end of a gas flow channel; 42. an outlet of the gas flow channel;

50. a suction module; 51. a motor; 52. a fan blade;

60. a reservoir;

70. a valve; 71. a valve body; 72. a valve core; 73. a liquid inlet; 74. a liquid outlet;

80. a housing of the suction device; 81. a circuit board.

Detailed Description

Referring to fig. 1, a suction device, which may be a hand-held suction device, includes a suction nozzle 10, a mixture flow channel 20 communicating with the suction nozzle, a separation chamber 30 communicating with the mixture flow channel, a liquid storage space communicating with the separation chamber, an air flow channel 40 communicating with the separation chamber, and a suction module 50 for drawing foreign substances into the suction device through the suction nozzle, wherein the suction module 50 is disposed in the mixture flow channel between the suction nozzle 10 and the separation chamber 30, a negative pressure channel of the suction nozzle 10 and a negative pressure channel of the suction module 50 are in fluid connection, and a positive pressure channel of the separation chamber 30 and the positive pressure channel of the suction module 50 are in fluid connection. Wherein the suction module is proximate to the suction nozzle.

As described above, one end of the suction module 50 is used for sucking air, the other end is used for exhausting air, the suction end is provided with the negative pressure channel, the exhaust end is provided with the positive pressure channel, the mixture flow channel comprises the flow channel connecting the suction nozzle 10 and the negative pressure channel of the suction module 50, and the flow channel connecting the positive pressure channel of the suction module 50 and the separation chamber 30.

As described above, the suction nozzle 10 and the negative pressure channel of the suction module 50 are in fluid connection, which means that a gas-liquid mixture as a fluid can flow from the suction nozzle 10 to the negative pressure channel of the suction module 50.

As described above, the separation chamber 30 and the positive pressure channel of the pumping module 50 are in fluid connection, which means that the gas-liquid mixture can flow from the positive pressure channel of the pumping module 50 to the separation chamber 30.

In actual operation, firstly, cleaning solution is sprayed to the hard surface, the suction nozzle 10 is moved close to the hard surface to facilitate the falling of dirt on the hard surface and is mixed with the cleaning solution, the suction module 50 operates, and a mixture channel between the suction module and the suction nozzle forms negative pressure to suck a gas-liquid mixture on the hard surface; the other part of the mixture passage forms a positive pressure to rapidly deliver the gas-liquid mixture to the separation chamber 30. Then, under the action of the positive pressure, the gas-liquid mixture firstly enters the liquid storage space, and then the gas floating on the surface of the liquid is discharged out of the suction device through the gas flow channel 40 (according to the gas discharge mode, part of harmful substances in the gas can be dissolved in the liquid, and the liquid has a filtering effect on the gas).

As shown in fig. 2, the suction module 50 includes a motor 51 and a fan blade 52, the fan blade is located in the cylindrical chamber 21, the motor is located outside the cylindrical chamber, a motor shaft extends into the cylindrical chamber and is connected with the fan blade, and a sealing member is arranged between the motor shaft and the cylindrical chamber; the cylindrical chamber is an integral part of the mixture flow channel 20. The sealing member is waterproof and airtight. Under the drive of the motor, the fan blade rotates, the mixture channel between the suction nozzle 10 and the cylindrical cavity 21 forms negative pressure, and the other part of the mixture channel forms positive pressure, and the positive pressure extends to the liquid storage space and the gas flow channel 40 to accelerate the flow and separation of gas-liquid mixture and the discharge of gas.

The suction device is provided with a circuit board 81 and a power supply unit, the power supply unit is connected with the motor 51 of the suction module 50 through the circuit board, and the suction device is provided with a button connected with the circuit board and used for controlling the rotating speed, starting and stopping of the motor.

The suction nozzle 10 is flat and the inlet 11 of the suction nozzle is narrow and long. The suction nozzle is provided with one end of an inlet and is contacted with the hard surface, and due to the long and narrow design of the wellhead, when the large-flow gas-liquid mixture is absorbed, the large-size substances can be prevented from entering the suction device, the suction module 50 is prevented from being damaged by the large-size substances, and the normal operation of the suction module is ensured.

Taking the suction module 50 as a dividing point, the mixture passage from the suction module to the suction nozzle 10 is a first mixture passage, and the mixture passage from the suction module to the separation chamber 30 is a second mixture passage. In an ideal situation of use, the suction device is in an upright position, as shown in fig. 1, with the mouthpiece 10 in contact with a vertical hard surface, said first mixture channel being in an obliquely upward and nearly horizontal position, and said second mixture channel being in a vertical position. In this situation, the liquid in the gas-liquid mixture is likely to fall into the liquid storage space under the action of the positive pressure and gravity in the second mixture passage, and the gas is blown into the gas flow passage 40 and discharged from the suction device. However, the actual situation of use is complicated, the suction device may be in a non-upright state, and if the positive pressure in the second mixture passage is small, it becomes difficult for the liquid in the gas-liquid mixture to enter the liquid storage space, and it also becomes difficult for the gas to enter the gas flow passage 40. Therefore, the utility model discloses can increase the output of motor 51 according to prior art, perhaps set up the button, the operator of being convenient for can selectively increase the output of motor, make suction module 50 to the positive pressure of mixture flow channel 20 can with be in the gas-liquid mixture in the suction device's of arbitrary angle mixture flow channel carry extremely separation chamber 30, wherein, liquid can get into the stock solution space smoothly, and gas can get into gas flow channel 40 smoothly.

The inlet of the reservoir space is located below the separation chamber 30, the outlet end 22 of the mixture flow passage is located at the upper left of the separation chamber and the inlet end 41 of the gas flow passage is located at the upper right of the separation chamber. According to the structure design, firstly, the liquid in the gas-liquid mixture is easy to fall into the liquid storage space; secondly, positive pressure exists in the mixture flow channel 20, and gas in the liquid storage space floats upwards and flows back into the mixture flow channel and enters the gas flow channel 40; again, the gas in the separation chamber 30 and the gas from the reservoir volume are readily exhausted from the suction device through the gas flow channel by the positive pressure in the mixture flow channel 20.

The reservoir space may be a space attached to the housing of the aspirator, and may be an integral structure with the housing of the aspirator, or may be an internal volume of the reservoir 60 that is assembled within or outside the housing of the aspirator. The liquid storage container is detachably connected with the suction device, so that an operator can pour liquid in the liquid storage container conveniently, and the operator can clean, maintain and replace the liquid storage container conveniently.

As shown in fig. 1, a valve 70 is disposed at an inlet of the liquid storage container 60, as shown in fig. 3, the valve includes a valve body 71 and a valve core 72, the valve body is provided with a liquid inlet 73 and a liquid outlet 74, the valve core is movably fitted in the valve body, and the valve core can block the liquid inlet under the action of gravity. Under an ideal use situation, the suction device is in an upright state, the valve core is far away from the liquid inlet under the action of gravity, and the liquid inlet is opened; when the liquid storage container is not in the upright state, the valve core can approach the liquid inlet and block the liquid inlet under the action of gravity, so that the liquid in the liquid storage container is prevented from flowing back into the separation cavity 30 and the mixture flow channel 20. Alternatively, the valve element 72 is a steel ball.

Alternatively, the valve 70 is fixed to the suction device, the reservoir 60 is removably connected to the valve, and the valve remains on the suction device after removal of the reservoir.

Alternatively, the valve 70 is fixed to the reservoir 60, the suction device is removably connected to the valve, and the valve is removed from the suction device with the reservoir.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A suction device provided with a suction nozzle (10), a mixture flow passage (20) communicating with the suction nozzle, a separation chamber (30) communicating with the mixture flow passage, a liquid storage space communicating with the separation chamber, a gas flow passage (40) communicating with the separation chamber, a suction module (50) for sucking foreign substances into the suction device through the suction nozzle, characterized in that: the suction module is arranged in a mixture flow channel between the suction nozzle (10) and the separation cavity (30), a negative pressure channel of the suction nozzle (10) and the suction module (50) form a fluid connection, and a positive pressure channel of the separation cavity (30) and the suction module (50) form a fluid connection.

2. The suction device as set forth in claim 1, wherein: the suction module (50) comprises a motor (51) and a fan blade, the fan blade is positioned in the cylindrical cavity (21), the motor is positioned outside the cylindrical cavity, a motor shaft extends into the cylindrical cavity and is connected with the fan blade, and a sealing element is arranged between the motor shaft and the cylindrical cavity; the cylindrical chamber is an integral part of the mixture flow channel (20).

3. The suction device as set forth in claim 1, wherein: the suction nozzle (10) is flat, and an inlet (11) of the suction nozzle is long and narrow.

4. The suction device as set forth in claim 1, wherein: the positive pressure of the suction module (50) on the mixture flow channel (20) can convey the gas-liquid mixture in the mixture flow channel of the suction device at any angle to the separation cavity (30).

5. The suction device as set forth in claim 1, wherein: the inlet of the reservoir space is located below the separation chamber (30), the outlet end (22) of the mixture flow passage is located on one side of the separation chamber, and the inlet end (41) of the gas flow passage is located on the other side of the separation chamber.

6. The suction device as set forth in claim 1, wherein: and a water retaining strip is arranged on the periphery of the air outlet of the air flow channel (40).

7. The suction device as set forth in claim 1, wherein: the liquid storage space is an inner cavity of a liquid storage container (60), and the liquid storage container is detachably connected with the suction device.

8. The suction device as set forth in claim 7, wherein: the inlet of the liquid storage container (60) is provided with a valve (70), the valve comprises a valve body (71) and a valve core (72), the valve body is provided with a liquid inlet (73) and a liquid outlet (74), the valve core is movably matched in the valve body, and the valve core can block the liquid inlet under the action of gravity.

9. The suction device as set forth in claim 8, wherein: the valve (70) is fixed on the suction device, and the liquid storage container (60) is detachably connected with the valve.

10. The suction device as set forth in claim 8, wherein: the valve (70) is fixed on the liquid storage container (60), and the suction device is detachably connected with the valve.

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