TWI452989B - Wet and dry vacuum cleaner - Google Patents

Description

Dry and wet vacuum cleaner

The invention relates to a wet and dry vacuum cleaner, in particular to a wet and dry vacuum cleaner which can effectively discharge the accumulated water in the water outlet pipe.

As shown in FIG. 5, it is a conventional wet and dry vacuum cleaner having an inner hollow casing 51, and a vacuum pump 52 for continuously discharging the air inside the casing 51 is provided outside the casing 51. The inside of the housing 51 is provided with a filter 53 for dust collecting, and a drain pump 54 is further disposed in the housing 51. The drain end of the drain pump 54 is connected with a drain flow passage 55, and the drain flow passage 55 passes through the housing. 51 is also connected to an outlet pipe 56.

In the above-described conventional wet and dry vacuum cleaner, the vacuum pump 52 is used to form a negative pressure inside the casing 51, and the liquid water can be smoothly sucked into the interior of the casing 51, and the drain pump 54 is used. The water liquid located inside the casing 51 is sequentially discharged outward through the drain passage 55 and the outlet pipe 56.

However, the outlet pipe 56 has a certain length in order to guide the flow of water to the predetermined collection position. However, the conventional wet/dry vacuum cleaner will also be located in the casing 51 after the water absorption operation is completed. The internal sewage is completely discharged into the outlet pipe 56, at this time due to the inside of the casing 51. The sewage has been drained, so that the drain pump 54 cannot continue to discharge the water to move the sewage in the outlet pipe 56, so that the sewage in the outlet pipe 56 cannot be completely discharged, so that when the user receives the outlet pipe 56, it remains. The accumulated water in the outlet pipe 56 overflows due to the storage operation, causing secondary pollution of the environment.

Moreover, the vacuum pump 52 and the drain pump 54 of the conventional wet and dry vacuum cleaner are controlled by the same control module 57. The drain pump 54 does not have the effect of automatic drainage and stopping, so that the sewage inside the casing 51 After draining, the drain pump will continue to operate and form an idling. In addition to increasing the power consumption, the drain pump will be easily damaged due to the continuous idling of the drain pump.

Accordingly, how to improve the problem that the conventional wet and dry vacuum cleaner cannot discharge the accumulated water in the water outlet pipe is the primary subject of the present invention. Therefore, the inventor of the present invention finally has the present invention after arduous thinking and trial work. produce.

One of the objects of the present invention is to provide a wet and dry vacuum cleaner which has the effect of effectively discharging the accumulated water in the water outlet pipe.

The second object of the present invention is to provide a wet and dry vacuum cleaner which has the function of automatically detecting the amount of water inside the vacuum cleaner and automatically controlling the startup of the drain pump.

In order to achieve the foregoing objective, the present invention provides a wet and dry vacuum cleaner comprising: a body having a chamber therein, the body having a suction port communicating with the chamber, the body being provided with a cavity The indoor air is continuously discharged to form a negative pressure vacuum pump, and the outlet end of the vacuum pump is provided with an exhaust flow passage, the exhaust flow prop has an exhaust port communicating with the outside, and a controllable air is disposed at the exhaust port a first control valve that is discharged outward; a drain pump is disposed at the bottom of the chamber, the drain pump has a water level sensor, and the water level sensor can activate the drain pump when a predetermined amount of water is accumulated in the chamber. The drain end of the drain pump is provided with a drain flow channel, the drain flow channel is connected to the exhaust flow channel, and a second control valve is disposed in the exhaust flow channel to control whether the drain flow channel is connected to the drain flow channel. The drain flow passage extends outwardly with a drain port for connecting an outlet pipe, and a third control valve for controlling the discharge of the water from the drain port is provided at the water outlet end of the drain pump.

Of course, the present invention may be different in some of the components, or the arrangement of the components, but the selected embodiments are described in detail in the present specification.

First, referring to Fig. 1, the present invention provides a wet and dry vacuum cleaner, which mainly comprises: a body 11 having a chamber 12 therein, and a sidewall of the body 11 is provided with an inhalation communicating with the chamber 12. Mouth 13, the suction port 1 A suction pipe 14 is disposed at one end of the outer casing. The top of the body 11 is provided with a vacuum pump 21 for continuously discharging the air inside the chamber 12 to form a negative pressure. The outlet end of the vacuum pump 21 is provided with a downward bend. An exhaust passage 22 extending from the upper portion of the exhaust passage 22 has an exhaust port 23 communicating with the outside, and a first control valve 24 is disposed at the exhaust port 23, the first control The valve 24 can be used to determine whether or not the air discharged by the vacuum pump 21 is discharged to the outside of the body 11 via the exhaust port 23.

A drain pump 31 is disposed at a bottom position of the chamber 12, and has a slope 15 at the bottom of the chamber 12, and a recess 16 is recessed in a bottom portion of the bottom portion of the chamber 12 opposite to the slope 15 The drain pump 31 is disposed in the tank 16, and the drain pump 31 has a water level sensor 32. When the vacuum pump 21 continues to operate to form a negative pressure inside the chamber 12, the suction pump can pass through the suction. The tube 14 draws the water of the external space into the interior of the chamber 12, and the water entering the interior of the chamber 12 can flow along the slope 15 into the tank 16, and the water level sensor 32 can be When the predetermined amount of water is accumulated in the tank 16, the drain pump 31 is activated to discharge the water in the tank 16.

The water outlet end of the drain pump 31 is connected with a drain flow channel 33, and the drain flow channel 33 is connected to the exhaust gas flow path 22, and a controllable flow channel is provided in the exhaust gas flow path 22. a second control valve 25 communicating with the passage 33, the drain passage 33 extending outwardly has a drain port 34 for connecting an outlet pipe 35, and a controllable outlet at the outlet end of the drain pump 31 The water liquid is discharged from the drain port 34 In the present embodiment, the third control valve 36 is electrically coupled to the water level sensor 32 such that when the water level sensor 32 senses that a predetermined amount of water is accumulated in the tank 16 That is, when the drain pump 31 is activated, the water level sensor 32 synchronously causes the third control valve 36 to be in an open state, so that the water in the tank 16 of the chamber 12 can be drained by the drain pump 31. The action is sequentially discharged outward through the drain passage 33, the drain port 34, and the outlet pipe 35.

However, it must be particularly noted that the first, second, and third control valves 24, 25, and 36 of the present invention can control the opening and closing states of the respective control valves by a control unit (not shown). The control unit may be constituted by a Programmable Logic Controller (PLC), and since the control unit is a conventional technology and is not the focus of the present case, the operation principle and structural composition thereof will not be described in detail herein. .

When the wet/dry dual-purpose vacuum cleaner of the present invention is used in actual use, as shown in FIG. 2, when the vacuum pump 21 is started to operate, the first control valve 24 is opened, and the second and third control valves 25 are opened. When the 36 is in the closed state, the vacuum pump 21 continuously discharges the air inside the chamber 12 through the exhaust flow passage 22 and the exhaust port 23 to the outside of the chamber 12, so that the interior of the chamber 12 forms a negative The pressure is continuously supplied to the inside of the chamber 12 through the suction pipe 14 and the suction port 13 through the suction pipe 14 and the water supply.

And when the water entering the interior of the chamber 12 reaches the water amount value set by the water level sensor 32, as shown in FIG. 3, the water level sensor 32 transmits a start signal to the drain pump 31 and The third control valve 36 The drain pump 31 is activated and synchronized to bring the third control valve 36 into an open state. At this time, the first control valve 24 and the third control valve 36 are in an open state, and the second control valve 25 is in an open state. In the closed state, the exhaust runner 22 is not in communication with the drain runner 33, and thereby the water in the tank 16 of the chamber 12 can be drained by the drain pump 31, in order. The drain channel 33, the drain port 34, and the outlet pipe 35 are discharged outward (as indicated by the dashed arrow in FIG. 3), and the vacuum pump 21 also continues to flow the air inside the chamber 12 from the exhaust stream. The passage 22 and the exhaust port 23 are exhausted (as indicated by the solid arrows in Fig. 3) to continuously suck foreign matter or liquid liquid into the interior of the chamber 12 through the suction pipe 14 and the suction port 13.

Furthermore, when the user wants to store the water outlet pipe 35 after use, the vacuum pump 21 is continuously operated for a predetermined time, and the first and third control valves 24, 36 are closed, and the second The control valve 35 is in an open state. At this time, as shown in FIG. 4, the exhaust runner 22 will be in a state of being in communication with the drain runner 33, and the air discharged by the vacuum pump 21 will be The exhaust gas flow path 22, the drainage flow path 33, and the water discharge pipe 35 are sequentially introduced, so that the water remaining in the water discharge pipe 35 can be pushed by the air discharged from the vacuum pump 21, and the accumulated water is discharged therefrom. The water pipe 35 is outside.

As can be seen from the above description, the present invention is connected to the exhaust runner 22 by the drain passage 33, and the exhaust runner 22 determines whether or not the drain runner 33 is mutually connected by the second control valve 25. Connected, and close the first and third control valves 24, 36 to operate the vacuum pump 21 The air discharged at this time can enter the drainage channel 33 through the exhaust runner 22 in this control mode, and thereby the accumulated water in the outlet pipe 35 can be discharged from the outlet pipe 35. Moreover, by the high temperature generated by the vacuum pump 21 itself during operation, the air discharged therefrom can further cause a drying effect on the inside of the water outlet pipe 35, so that the user does not perform the operation of accommodating the water outlet pipe 35. There will be another problem that the accumulated water will flow out from the outlet pipe and pollute the environment twice.

Furthermore, the drain pump 31 of the present invention can sense the amount of water in the tank 16 by its water level sensor 32, and thereby the effect of automatically starting the drain pump 31 for drainage can be achieved, and when the tank is used When the accumulated amount of water is lower than the preset amount of water, the water level sensor stops the drain pump 31, thereby preventing the drain pump 31 from forming an idling state and further prolonging the service life of the drain pump 31. .

The disclosure of the above-described embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention.

In summary, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives and is in accordance with the provisions of the Patent Law. Therefore, the inventor of the present invention filed an application according to law.

(customized part)

51‧‧‧Shell

52‧‧‧Vacuum pump

53‧‧‧Filter

54‧‧‧Drainage pump

55‧‧‧Drainage channel

56‧‧‧Outlet

57‧‧‧Control Module

(part of the invention)

11‧‧‧Ontology

12‧‧‧ chamber

13‧‧‧Inhalation

14‧‧‧Inhalation tube

15‧‧‧ slope

16‧‧‧ 容容

21‧‧‧Vacuum pump

22‧‧‧Exhaust runner

23‧‧‧Exhaust port

24‧‧‧First control valve

25‧‧‧Second control valve

31‧‧‧Drain pump

32‧‧‧Water level sensor

33‧‧‧Drainage channel

34‧‧‧Drainage

35‧‧‧Outlet

36‧‧‧third control valve

Figure 1 is a schematic view of the structure of the present invention

Figure 2 is a schematic view showing the state of use of the present invention for displaying that the first control valve is in an open state, and the second and third control valves are in a closed state.

Figure 3 is a schematic view showing the state of use of the present invention for displaying that the first control valve and the third control valve are in an open state, and the second control valve is in a closed state.

Figure 4 is a schematic view showing the state of use of the present invention for displaying that the first and third control valves are in a closed state, and the second control valve is in a state of being opened.

Figure 5 is a schematic view of the structure of a conventional wet and dry vacuum cleaner

11‧‧‧Ontology

12‧‧‧ chamber

13‧‧‧Inhalation

14‧‧‧Inhalation tube

15‧‧‧ slope

16‧‧‧ 容容

21‧‧‧Vacuum pump

22‧‧‧Exhaust runner

23‧‧‧Exhaust port

24‧‧‧First control valve

25‧‧‧Second control valve

31‧‧‧Drain pump

32‧‧‧Water level sensor

33‧‧‧Drainage channel

34‧‧‧Drainage

35‧‧‧Outlet

36‧‧‧third control valve

Claims (4)

A wet and dry vacuum cleaner comprising: a body having a chamber therein, the body having a suction port communicating with the chamber, the body being provided with a chamber for continuously discharging air to form a negative pressure a vacuum pump, the outlet end of the vacuum pump is provided with an exhaust flow passage, the exhaust flow prop has an exhaust port communicating with the outside, and a first control valve for controlling the outward discharge of the air is disposed at the exhaust port; a drain pump is disposed at the bottom of the chamber, the drain pump has a water level sensor, and the water level sensor can start the drain pump when the predetermined amount of water is accumulated in the chamber, and the drain end of the drain pump is provided with a drain a drain passage is connected to the exhaust runner, and a second control valve is disposed in the exhaust runner to control whether the drain runner communicates with the drain runner, and the drain runner extends outwardly with a drain a drain pipe for connecting an outlet pipe, and a third control valve for controlling the discharge of water from the drain port at a water outlet end of the drain pump; when the vacuum pump is activated, the first control valve is Open When the second and third control valves are in a closed state, the vacuum pump continuously discharges the air inside the chamber through the exhaust flow passage and the exhaust port to the outside of the chamber to form an interior of the chamber. Negative pressure, and the external debris or water can be continuously sucked into the chamber through the suction port. The wet and dry vacuum cleaner according to claim 1, wherein the bottom of the chamber has a slope, and the bottom of the chamber is opposite to the chamber A recess is formed on one side of the lowest position of the slope, and the drain pump is disposed in the tank. The wet/dry dual-use vacuum cleaner according to claim 1, wherein the third control valve and the water level sensor are electrically connected to each other, and when the water entering the chamber reaches the water level sensing When the water quantity value set by the device is set, the water level sensor transmits a start signal to the drain pump and the third control valve, so that the drain pump starts to operate and synchronizes the third control valve to be in an open state. When the first control valve and the third control valve are in an open state, the second control valve is in a closed state, so that the water liquid located in the cavity of the chamber can be drained by the drainage pump, in sequence The drainage channel, the drain port and the outlet pipe are discharged outward. The wet and dry vacuum cleaner according to the first aspect of the invention, wherein the vacuum pump is continuously operated for a preset time before the user wants to receive the outlet pipe after use, and the first and third controls are The valve is in a closed state, and the second control valve is in an open state. At this time, the exhaust flow path and the drainage flow path are in a state of mutual communication, so that the air discharged by the vacuum pump sequentially enters the exhaust flow. Road, the drainage channel, the outlet pipe.