TWI463963B - Dry and wet vacuum cleaner - Google Patents

Description

Dry and wet vacuum cleaner

The invention relates to a dust collecting device, in particular to a wet and dry dust collecting device which can reliably discharge water accumulated inside the dust collecting device.

As shown in FIG. 6, 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.

However, in the above-described conventional wet/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 casing 51, and the drain pump can be borrowed. 54 The water liquid located inside the casing 51 is sequentially discharged to the outside through the drain passage 55 and the outlet pipe 56.

In other words, the conventional wet and dry vacuum cleaners must be additionally provided with the drain pump 54 for rapid drainage. Therefore, under the structural composition of having only one vacuum pump, the utility model can also have the functions of vacuuming and draining. The primary problem to be solved by the present invention.

One of the objects of the present invention is to provide a wet and dry dust collecting device which has the function of vacuuming and draining with a single vacuum pump, and has the function of reliably discharging the accumulated water inside the wet and dry dust collecting device. efficacy.

The second object of the present invention is to provide a wet and dry dust collecting device, which has the function of automatically detecting the amount of water inside the wet and dry dust collecting device and automatically performing drainage.

For the purpose of the foregoing, the present invention provides a wet and dry dust collecting device, comprising: a body having a chamber formed therein, and a suction opening communicating with the chamber is formed on the body, and the chamber is further formed under the chamber. There is a liquid liquid temporary storage tank, and a first control valve is disposed between the chamber and the liquid liquid temporary storage tank to control whether the chamber communicates with the liquid liquid temporary storage tank, and a bottom of the liquid liquid temporary storage tank is opened. a drain port communicating with the outside, and a second control valve for controlling the water liquid temporary storage tank to communicate with the outside at the drain port; a vacuum pump disposed in the chamber, the vacuum pump can be used to air the chamber Forcibly discharging to form a negative pressure, and an exhaust flow passage is disposed at an outlet end of the vacuum pump, and the exhaust end of the exhaust flow passage is further branched to form a first branch and a second branch, wherein the first branch An item has an exhaust port communicating with the outside, and a third control valve for controlling the outward discharge of air is disposed in the first branch, and the second branch is connected to the top of the liquid storage slot. And having a controllable space in the second branch The aqueous liquid into temporary fourth control valve of the groove; In addition, a water level sensor is disposed in the water liquid storage tank, and the water level sensor can relatively control the opening and closing state of the control valves when the water liquid in the liquid liquid temporary storage tank reaches a preset water level.

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 dust collecting device, which mainly comprises: a body 11 having a chamber 12 formed therein, and a correspondingly closed portion of the body 11 is provided at the top of the body 11 The upper cover 111 of the chamber 12 is provided with a plurality of air inlets 112 communicating with the outside. The side wall of the body 11 defines a suction port 13 communicating with the chamber 12, and the suction port 13 is connected to the outer end. A suction pipe 14 is disposed, and a filter 15 having an upward opening 151 is disposed in the cavity 12, and the suction port 13 is connected to the opening 15 of the filter 15 at one end of the cavity 12. The screen 15 is freely removable from the chamber 12, and a handle 152 for gripping the hand is provided on the top of the screen 15. The body 11 is further formed with a liquid liquid temporary storage tank 16 in a space below the chamber 12, and a chamber between the chamber 12 and the liquid liquid temporary storage tank 16 is provided to control the chamber 12 and the liquid liquid temporary storage 16 Whether the slot is connected to the first control valve 17, and a drain port 18 communicating with the outside is formed at the bottom of the water liquid storage slot 16, and a drain port 18 is provided at the drain port 18 The second control valve 19 that controls whether the water liquid storage tank 16 is in communication with the outside.

A vacuum pump 21 is disposed above the chamber 12 and located in the cover body 111. The vacuum pump 21 has an intake end 211 and an air outlet end 212, and an intake end 211 extends in the chamber 12. The vacuum pump 21 is provided with a through hole 213 on one side of the inlet port 112 of the cover body 111, and an intake switching valve 214 is disposed in the through hole 213 to be normally closed in a closed state. The vacuum pump 21 is provided. Mainly, the air in the chamber 12 can be forcibly discharged to form a negative pressure, and a floating ball sensor 22 is provided at a position opposite to the lower end of the intake end 211 of the vacuum pump 21, and the floating ball sensor 22 can be subjected to water. The buoyancy force drives the intake end 211 of the vacuum pump 21 upwardly, and the outlet end 212 of the vacuum pump 21 is connected with a downwardly extending exhaust flow passage 23, and the exhaust flow passage 23 is arranged. The air branch is further branched to form a first branch 231 and a second branch 232. The first branch 231 has an exhaust port 24 communicating with the outside, and a first branch 231 is provided in the first branch 231. a third control valve 25 for controlling whether air is discharged outward through the exhaust port 24, and the third control valve 25 and the row An air filter 26 is further disposed between the ports 24, and the second branch 232 extends downward and is connected to the top of the liquid storage tank 16 and is provided in the second branch 232. It is possible to control whether the air is discharged into the fourth control valve 27 of the water liquid storage tank 16.

In addition, a water level sensor 31 is disposed in the water liquid storage tank 16. In the embodiment, the water level sensor 31 is composed of a high water level meter 311 and A low water level gauge 312 is formed. The control valves 17, 19, 25, and 27 are electrically connected to the water level sensor 31, respectively, and when the high water level gauge 311 of the water level sensor 31 senses the water liquid temporarily When the predetermined amount of water is accumulated in the storage tank 16, the first control valve 17 and the third control valve 25 are closed, and the second control valve 19 and the fourth control valve 27 are opened to be located in the water liquid storage tank 16. The water liquid can be discharged from the drain port 18 by being pressurized by the air discharged from the second branch 232.

In the actual use of the wet and dry dust collecting device of the present invention, as shown in FIG. 2, when the vacuum pump 21 is started to operate, the first control valve 17 and the third control valve 25 are in an open state, and the second The control valve 19 and the fourth control valve 27 are in a closed state. At this time, the vacuum pump 21 can forcibly pass the air inside the chamber 12 through the first branch 231 of the exhaust runner 23 and the air filter. 26 and the exhaust port 24 are discharged to the outside of the chamber 12 to form a negative pressure inside the chamber 12, and the external debris or water can be continuously sucked through the suction pipe 14 and the suction port 13 The inside of the chamber 12, at which time the dust sucked through the suction pipe 14 is uniformly concentrated by the filter 15, and when the dust suction device of the present invention sucks in the liquid liquid, the water liquid passes through the gravity itself. The first control valve 17 flows into the liquid liquid storage tank 16 for storage.

When the water flowing into the water liquid storage tank 16 reaches the high water level value set by the high water level gauge 311 of the water level sensor 31, as shown in FIG. 3, the water level sensor 31 will cause The first control valve 17 and the third control valve 25 are in a closed state, and the second control valve 19 and the fourth control valve 27 are in an open state. At this time, the vacuum pump 21 is forcibly discharged. The air is discharged into the liquid liquid storage tank 16 by the second branch 232, and is pressurized by the air discharged from the second branch 232, so that it can be located surely and quickly. The water liquid in the water liquid storage tank 16 is discharged outward from the water discharge port 18.

However, it must be particularly noted that the first control valve 17 is in a closed state when the dust suction device of the present invention performs the draining operation, and therefore is located in the chamber 12 when the water absorption speed is greater than the drainage speed thereof. The water level of the water may gradually increase. At this time, as shown in FIG. 4, when the water level in the chamber 12 is gradually increased, the float sensor 22 is driven to close the intake of the vacuum pump 21. At the end 211, the float sensor 22 synchronously transmits a switching signal to change the intake switching valve 214 located in the through hole 213 to an open state, so that the vacuum pump 21 can be inhaled by the air inlet 112. The air is discharged into the liquid liquid storage tank 16 by the second branch 232, and can also be placed in the liquid liquid temporary storage tank 16 by the air pressurization discharged into the liquid liquid temporary storage tank 16. The effect of the water liquid in the water is discharged from the drain port 18 reliably and quickly. On the other hand, when the water level in the chamber 12 is lowered until the float sensor 22 no longer closes the intake end 211 of the vacuum pump 21, the float sensor 22 transmits the switching signal again. The intake switching valve 214 is returned to the closed state, so that the vacuum pump 21 is restored to take in air through its intake end 211 and is discharged into the liquid temporary storage tank 16 via the second branch 232.

When the water level in the water liquid storage tank 16 is lowered to the low water level value set by the low water level gauge 312 of the water level sensor 31, it will be returned. In the fifth embodiment, the water level sensor 31 returns the control valves 17, 19, 25, 27 to an initial starting state, that is, the second control valve 19 and the fourth control valve 27 are closed. a state in which the first control valve 17 and the third control valve 25 are in an open state, so that the water sucked through the suction port 13 is again temporarily stored in the water liquid storage tank 16 via the first control valve 17. .

It can be seen from the above description that the wet and dry dust collecting device of the present invention only needs to be switched by the vacuum pump 21 and the control valves 17, 19, 25, 27 to achieve the functions of vacuuming and draining, without additional drainage. The pump structure, and the present invention can be pressurized by the air discharged from the second branch 232 when the drainage operation is actually performed, so that the liquid liquid located in the liquid temporary storage tank 16 can be reliably and quickly passed. The drain port 18 is discharged outward.

Furthermore, the water level sensor 31 of the present invention can sense the amount of water in the liquid liquid storage tank 16 by its high and low water level gauges 311, 312, thereby achieving the effect of automatic drainage.

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

(part of the invention)

11‧‧‧Ontology

111‧‧‧Upper cover

112‧‧‧air inlet

12‧‧‧ chamber

13‧‧‧Inhalation

14‧‧‧Inhalation tube

15‧‧‧Filter

151‧‧‧ openings

152‧‧‧

16‧‧‧Water liquid storage tank

17‧‧‧First control valve

18‧‧‧Drainage

19‧‧‧Second control valve

21‧‧‧Vacuum pump

211‧‧‧ intake end

212‧‧‧Exhaust end

213‧‧‧through hole

214‧‧‧Intake switching valve

22‧‧‧Floating ball sensor

23‧‧‧Exhaust runner

231‧‧‧First Road

232‧‧‧Second Road

24‧‧‧Exhaust port

25‧‧‧third control valve

26‧‧‧Air filter

27‧‧‧fourth control valve

31‧‧‧Water level sensor

311‧‧‧High water level gauge

312‧‧‧Low water level gauge

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 the state at the initial startup of the present invention.

Figure 3 is a schematic view showing the state of use of the present invention for displaying the state when the water level in the liquid storage tank reaches the high water level set by the water level sensor.

Figure 4 is a schematic view showing the state of use of the present invention, which is used when the water absorption speed is greater than the drainage speed thereof.

Figure 5 is a schematic view showing the state of use of the present invention, which is used when the water level in the temporary liquid storage tank is lowered to the low water level value set by the water level sensor.

Figure 6 is a schematic view of the structure of a conventional wet and dry vacuum cleaner

11‧‧‧Ontology

111‧‧‧Upper cover

112‧‧‧air inlet

12‧‧‧ chamber

13‧‧‧Inhalation

14‧‧‧Inhalation tube

15‧‧‧Filter

151‧‧‧ openings

152‧‧‧

16‧‧‧Water liquid storage tank

17‧‧‧First control valve

18‧‧‧Drainage

19‧‧‧Second control valve

21‧‧‧Vacuum pump

211‧‧‧ intake end

212‧‧‧Exhaust end

213‧‧‧through hole

214‧‧‧Intake switching valve

22‧‧‧Floating ball sensor

23‧‧‧Exhaust runner

231‧‧‧First Road

232‧‧‧Second Road

24‧‧‧Exhaust port

25‧‧‧third control valve

26‧‧‧Air filter

27‧‧‧fourth control valve

31‧‧‧Water level sensor

311‧‧‧High water level gauge

312‧‧‧Low water level gauge

Claims (9)

The utility model relates to a wet and dry dust collecting device, comprising: a body, a cavity is formed therein, and a suction opening communicating with the chamber is formed on the body, and a liquid temporary storage groove is formed under the cavity, the cavity A first control valve is disposed between the chamber and the liquid liquid storage tank to control whether the chamber communicates with the liquid liquid temporary storage tank, and a drain outlet communicating with the outside is formed at the bottom of the liquid liquid temporary storage tank, and The drain port is provided with a second control valve for controlling the water liquid temporary storage tank to communicate with the outside; a vacuum pump is disposed in the chamber, the vacuum pump has an intake end and an air outlet end, and the vacuum pump can be the cavity The air in the room is forcibly discharged to form a negative pressure, and an exhaust flow passage is disposed at an outlet end of the vacuum pump, and the exhaust end of the exhaust flow passage is further branched to form a first branch and a second branch, wherein The first prop has an exhaust port communicating with the outside, and a third control valve for controlling the outward discharge of the air is disposed in the first branch, and the second branch is connected to the liquid temporary storage tank The top is connected, and one of the second branches is provided The air is discharged into the fourth control valve of the liquid liquid temporary storage tank; and the water liquid temporary storage tank is provided with a water level sensor, and the water level sensor is a water liquid in the liquid liquid temporary storage tank When the preset water level is reached, the opening and closing states of the control valves are relatively controlled; when the vacuum pump is started, the first control valve and the third control valve are in an open state, and the second control valve and the fourth control valve are in an open state. Closed state, at this time the vacuum pump forces the air inside the chamber The first branch of the exhaust runner and the exhaust port are sequentially discharged to the outside of the chamber. The wet and dry dust collecting device according to claim 1, wherein the suction port is provided with a suction pipe at one end of the suction port, and an open filter screen is further disposed in the cavity, and the suction port is further provided. The end of the chamber is connected to the opening of the screen. The wet/dry dual-use dust collecting device according to claim 2, wherein the filter screen can be taken out from the chamber, and a handle that can be gripped by a hand is provided on the top of the filter screen. The wet and dry dust collecting device according to claim 1, wherein an air filter is further disposed between the third control valve and the exhaust port. The wet/dry dual-use dust collecting device according to claim 1, wherein the water level sensor is composed of a high water level gauge and a low water level gauge, and the control valve systems are respectively electrically connected to the water level sensor. Sexual links. The wet/dry dual-use dust collecting device according to claim 1, wherein the water level sensor is when the water flowing into the liquid liquid temporary storage tank reaches a high water level value set by the water level sensor. Even if the first control valve and the third control valve are in a closed state, the second control valve and the fourth control valve are in an open state, and at this time, the air forced to be discharged by the vacuum pump is caused by the second branch. Discharge into the liquid storage tank. The wet/dry dual-use dust collecting device according to claim 6, wherein the water level sensor is when the water level in the liquid liquid temporary storage tank is lowered to a low water level value set by the water level sensor. Immediately the second control The valve and the fourth control valve are in a closed state, and the first control valve and the third control valve are in an open state, so that the water sucked through the suction port is again temporarily stored in the water through the first control valve. In the liquid storage tank. The wet and dry dust collecting device according to claim 1, wherein the top of the body is provided with a cover corresponding to the chamber, and the upper cover is provided with a plurality of air inlets communicating with the outside, and the vacuum pump is The vacuum pump has an inlet end extending in the chamber, and the vacuum pump is provided with a through hole on one side of the inlet of the cover body, and the through hole is disposed in the chamber. An air inlet switching valve that is normally closed in a closed state is disposed in the hole, and a floating ball sensor is disposed at a position opposite to the lower end of the vacuum pump inlet end, and the floating ball sensor is driven by water buoyancy Correspondingly closing the intake end of the vacuum pump. The wet/dry dual-use dust collecting device according to claim 8, wherein when the water level in the chamber is gradually increased to drive the float sensor to close the intake end of the vacuum pump, The float sensor synchronously transmits a switching signal to change the intake switching valve located in the through hole to an open state, so that the vacuum pump can take in air from the air inlet and discharge the air through the second branch. The liquid is temporarily stored in the tank.