A gas-liquid separation type suction device

Abstract

The application relates to the technical field of suction equipment, in particular to a gas-liquid separation type suction equipment which comprises a suction nozzle, a liquid storage container, a rotating body, a transmission shaft and a driving device, the rotating body is located in the liquid storage container, the liquid storage container is respectively provided with a liquid inlet pipeline and a gas outlet pipeline which extend to the rotating body at two ends, the driving device is connected with the rotating body through the transmission shaft, the arrangement direction of the rotating body and the gas outlet pipeline is defined as a height direction, the rotating body is located above the gas outlet pipeline, the rotating body comprises a top part located between the gas outlet pipeline and the liquid inlet pipeline and an annular part which surrounds the gas outlet pipeline, the top part and the annular part enclose a clearance slot, the upper end of the gas outlet pipeline is inserted into the clearance slot, the top part is used for blocking the fluid above the rotating body from flowing to the gas outlet pipeline and simultaneously throwing the liquid above the rotating body to the surroundings, there is a gas outlet gap between the rotating body and the gas outlet pipeline, the annular part is provided with a gas suction through hole, and the gas in the liquid storage container enters the gas outlet pipeline through the gas suction through hole and the gas outlet gap.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of suction equipment, in particular to a gas-liquid separation type suction equipment. BACKGROUND

[0002] There are some suction equipment suitable for hard surfaces in the market, which are often used to clean the liquid droplets and fine dust attached to the hard surfaces such as glass doors and windows, tiled walls, floors, etc. Some of these suction equipment have the function of gas-liquid separation, which can separate the mixed fluid of liquid and gas sucked at the same time through a separation device.

[0003] However, the separation device structure of these devices is not reasonable, and the gas flow path and the liquid flow path interfere with each other, often affecting the effective separation of gas and liquid. SUMMARY

[0004] To solve the above problems, the present application provides a gas-liquid separation type suction equipment.

[0005] Specifically, the technical scheme of the present application is:

[0006] A gas-liquid separation type suction equipment, comprising a suction nozzle, a liquid storage container, a rotating body, a transmission shaft and a driving device, the rotating body is located in the liquid storage container, the liquid storage container is provided with a liquid inlet pipe and a gas outlet pipe extending to the rotating body at both ends respectively, the driving device is connected with the rotating body through the transmission shaft, the arrangement direction of the rotating body and the gas outlet pipe is defined as the height direction, the rotating body is located above the gas outlet pipe, the rotating body comprises a top part located between the gas outlet pipe and the liquid inlet pipe and an annular part surrounding the gas outlet pipe, the top part and the annular part surround a clearance slot, the upper end of the gas outlet pipe is inserted into the clearance slot, the top part is used to block the fluid above the rotating body from flowing to the gas outlet pipe and to throw the liquid above the rotating body to the surroundings, the annular part further comprises a first annular part, an annular connecting part and a second annular part arranged in sequence from top to bottom, the annular connecting part connects the first annular part and the second annular part, there is a gas outlet gap between the rotating body and the gas outlet pipe, the gas in the liquid storage container enters the gas outlet pipe through the gas suction hole and the gas outlet gap; the upper end of the gas outlet pipe is provided with a lower annular retaining wall, the lower annular retaining wall is arranged around the gas outlet pipe, the lower annular retaining wall, the annular connecting part and the second annular part surround a liquid discharge gap in communication with the gas outlet gap, the lower surface of the annular connecting part is used to throw the liquid entering the liquid discharge gap to the inner circumferential surface of the second annular part.

[0007] Further, the upper end of the gas outlet pipe is also provided with an upper annular retaining wall, the upper annular retaining wall is arranged around the gas outlet pipe and located in the clearance slot, the upper annular retaining wall is located above the lower annular retaining wall, the lower surface of the upper annular retaining wall, the upper surface of the lower annular retaining wall and the side wall of the gas outlet pipe surround an annular drainage groove, the gas suction hole is in communication with the annular drainage groove.

[0008] Furthermore, the distance between the outer circumferential surface of the upper annular retaining wall and the inner circumferential surface of the first annular portion is greater than 0 mm and less than 3 mm; the distance between the upper surface of the upper annular retaining wall and the lower surface of the top of the rotating body is greater than 0 mm and less than 3 mm.

[0009] Furthermore, the distance between the outer circumferential surface of the lower annular retaining wall and the inner circumferential surface of the second annular portion is greater than 0 mm and less than 3 mm; the distance between the upper surface of the lower annular retaining wall and the lower surface of the annular connecting portion is greater than 0 mm and less than 3 mm.

[0010] Furthermore, multiple air extraction holes are evenly distributed along the circumference of the rotating body on the first annular portion.

[0011] Furthermore, the upper end of the liquid storage container is integrally connected to the liquid inlet pipe, the liquid inlet of the liquid inlet pipe is connected to the suction nozzle, the liquid outlet of the liquid inlet pipe faces the top of the rotating body, and the inner diameter of the liquid outlet of the liquid inlet pipe is smaller than the radial dimension of the top of the rotating body.

[0012] Furthermore, the lower end of the liquid storage container is detachably connected to the gas outlet pipe, and a sealing ring is provided between the gas outlet pipe and the liquid storage container.

[0013] Furthermore, the gas-liquid separation suction device also includes a control handle, which includes a control handle housing, a drive device located inside the control handle housing, and a fan inside the control handle housing. The drive device is connected to the fan and is used to drive the fan to rotate. The rotating body is connected to the fan through a transmission shaft passing through the air outlet pipe. The control handle housing has an air intake hole corresponding to the fan, and the air intake hole is connected to the air outlet pipe.

[0014] Beneficial technical effects of the present invention:

[0015] 1. The liquid drawn in through the inlet pipe is flung outwards upon contact with the top of the rotating body. Gas drawn in through the inlet pipe and gas from the storage container are drawn into the outlet pipe through the suction port on the annular part of the rotating body. The gas flow paths and liquid flow paths do not interfere with each other, resulting in excellent gas-liquid separation. 2. The lower surface of the annular connecting part can fling the liquid drawn into the discharge gap during the rotation of the rotating body towards the inner circumference of the second annular part, preventing liquid from entering the outlet gap. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a gas-liquid separation suction device according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A cross-sectional view of the gas-liquid separation suction device shown.

[0018] Figure 3 for Figure 2A magnified view of a portion of the image;

[0019] Figure 4 for Figure 1 A cross-sectional view of the solid of revolution shown;

[0020] Figure 5 for Figure 1 The diagram shows the working status of the gas-liquid separation suction device.

[0021] Figure 6 for Figure 1 The diagram shows the liquid discharge process of the gas-liquid separation suction device in operation.

[0022] Figure 7 for Figure 1 The diagram shows the non-working state of the gas-liquid separation suction device.

[0023] Figures 8 to 11 This is a schematic diagram of the liquid discharge process of the suction device in other embodiments of the present invention. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In one embodiment, such as Figures 1 to 4 As shown, the gas-liquid separation suction device provided by the present invention includes a suction nozzle 1, a liquid storage container 2, a rotating body 3, a drive shaft, and a drive device 4. The rotating body 3 is located inside the liquid storage container 2. The liquid storage container 2 has an inlet pipe 21 and an outlet pipe 5 extending towards the rotating body 3 at both ends. The inlet pipe 21 connects the suction nozzle 1 and the liquid storage container 2 and guides the liquid entering the liquid storage container 2. The outlet pipe 5 discharges gas from the liquid storage container 2, including gas entering the liquid storage container 2 from the inlet pipe 21. The drive device 4 is connected to the rotating body 3 via the drive shaft.

[0026] The arrangement direction of the rotating body 3 and the outlet pipe 5 is defined as the height direction, with the rotating body 3 located above the outlet pipe 5. The rotating body 3 includes a top located between the outlet pipe 5 and the liquid inlet pipe 21, and an annular portion surrounding the outlet pipe 5. The top and the annular portion of the rotating body 3 form a clearance groove. The upper end of the outlet pipe 5 is inserted into the clearance groove, with the inlet of the outlet pipe 5 facing the bottom of the clearance groove. The outlet of the outlet pipe 5 is connected to the exhaust port of the suction device. There is an outlet gap A between the rotating body 3 and the outlet pipe 5, and the rotating body 3 is provided with a suction through hole 31. When the suction device is working, the gas in the liquid storage container 2 enters the outlet pipe 5 through the suction through hole 31 and the outlet gap A. The top of the rotating body 3 is used to block the fluid above the rotating body 3 from flowing into the outlet pipe 5, while simultaneously throwing the liquid above the rotating body 3 to the surroundings.

[0027] In the present embodiment, the upper end of the air outlet pipe 5 is provided with an upper annular baffle 51, which is arranged around the air outlet pipe 5 and is located in the accommodation groove, forming an obstacle in the air outlet gap A, for blocking liquid from entering the air outlet pipe 5 when the suction device is changed from standing to lying. In other embodiments, the upper annular baffle 51 can also not be provided, but a small amount of liquid can enter the air outlet pipe 5 from the air outlet gap A when the suction device is changed from standing to lying.

[0028] The annular part of the rotating body 3 includes a first annular part 32, an annular connecting part 33 and a second annular part 34 arranged in sequence from top to bottom, the annular connecting part 33 connects the first annular part 32 and the second annular part 34, and the air suction hole 31 is arranged on the first annular part 32. In the present embodiment, the outer diameter of the first annular part 32 is smaller than the inner diameter of the second annular part 34. In other embodiments, the structures of the first annular part 32, the annular connecting part 33 and the second annular part 34 can also be different from the present embodiment, for example Figures 8 to 11 as shown.

[0029] The upper end of the air outlet pipe 5 is provided with a lower annular baffle 52, which is arranged around the air outlet pipe 5, and the lower annular baffle 52, the annular connecting part 33 and the second annular part 34 form a liquid discharge gap B in communication with the air outlet gap A, as Figure 6 shown, when the suction device is working, the lower surface of the annular connecting part 33 is used to throw the liquid (in Figure 6 solid arrows) entering the liquid discharge gap B to the inner circumferential surface of the second annular part 34, preventing the liquid from entering the air outlet gap A, and the liquid thrown to the inner circumferential surface of the second annular part 34 is discharged from the liquid discharge gap B under the action of gravity.

[0030] The upper annular baffle 51 is located above the lower annular baffle 52, and the lower surface of the upper annular baffle 51, the upper surface of the lower annular baffle 52 and the side wall of the air outlet pipe 5 form an annular drainage groove, and the air suction hole 31 is in communication with the annular drainage groove. When the liquid container 2 is changed from standing to lying, the liquid in the liquid container 2 enters the air outlet gap A from the air suction hole 31, and then flows to the opposite side under the guidance of the annular drainage groove and the action of gravity, and is not easy to enter the air outlet pipe 5.

[0031] The use state of the suction device is generally standing, that is, in the direction of gravity, the suction nozzle 1 is above the liquid container 2. As Figure 5 shown, when the rotating body 3 rotates, the liquid (in Figure 5 shown by dots) in the liquid container 2 sucked from the suction nozzle 1 through the liquid inlet pipe 21 contacts the rotating body 3 and is thrown to the surroundings of the rotating body 3 due to centrifugal force, and the gas (in Figure 5 shown by solid arrows) in the liquid container 2 is sucked into the air outlet pipe 5 through the air suction hole 31 and the air outlet gap A, so as to be discharged from the air outlet pipe 5 to the suction device.

[0032] like Figure 7 As shown, when the suction equipment is not working, if the suction equipment is tilted or changes from standing to sideways, the liquid in the storage container 2 (in...) Figure 7 (Illustrated by dots) Liquid may enter the outlet gap A from below or through the suction port 31. The upper annular baffle 51 can prevent liquid entering the outlet gap A from further entering the outlet pipe 5. In this embodiment, the distance between the outer circumferential surface of the upper annular baffle 51 and the inner circumferential surface of the first annular portion 32 is greater than 0 mm and less than 3 mm, and the distance between the upper surface of the upper annular baffle 51 and the lower surface of the top of the rotating body 3 is greater than 0 mm and less than 3 mm, to ensure a better blocking effect.

[0033] In this embodiment, the distance between the outer peripheral surface of the lower annular baffle 52 and the inner peripheral surface of the second annular portion 34 is greater than 0 mm and less than 3 mm, and the distance between the upper surface of the lower annular baffle 52 and the lower surface of the annular connecting portion 33 is greater than 0 mm and less than 3 mm. This makes it difficult for the liquid below the drain gap B to enter the drain gap B due to the narrow channel, and even more difficult for it to enter the gas outlet gap A through the drain gap B.

[0034] In this embodiment, a plurality of air extraction holes 31 are evenly distributed around the first annular portion 32 along the circumference of the rotating body 3 to uniformly draw gas from the liquid storage container 2, so that the gas pressure inside the liquid storage container 2 is uniform.

[0035] In this embodiment, the upper end of the liquid storage container 2 is integrally connected to the liquid inlet pipe 21. The liquid inlet of the liquid inlet pipe 21 is connected to the suction nozzle 1. The liquid outlet of the liquid inlet pipe 21 faces the top of the rotating body 3. The inner diameter of the liquid outlet of the liquid inlet pipe 21 is smaller than the radial dimension of the top of the rotating body 3, so that the liquid drawn into the liquid storage container 2 from the liquid inlet pipe 21 can contact the top of the rotating body 3 and be evenly thrown to the sides of the rotating body 3.

[0036] In this embodiment, the lower end of the liquid storage container 2 is detachably connected to the vent pipe 5 to facilitate the pouring out of the liquid in the liquid storage container 2. A sealing ring is provided between the vent pipe 5 and the liquid storage container 2 to prevent leakage.

[0037] In this embodiment, the gas-liquid separation suction device further includes a control handle, which includes a control handle housing 6. A drive device 4 is located inside the control handle housing 6, and a fan 7 is also provided inside the control handle housing 6. The drive device 4 is connected to the fan 7 and is used to drive the fan 7 to rotate. The rotating body 3 is fixedly connected to the fan 7 through a transmission shaft passing through the air outlet pipe 5. The control handle housing 6 has an air intake hole corresponding to the fan 7, and the air intake hole is connected to the air outlet pipe 5. The structure is compact. In other embodiments, the negative pressure generating device for suction in the gas-liquid separation suction device can also be a vacuum pump, and the drive device 4 is only used to drive the rotating body 3 to rotate.

[0038] In the embodiment, the transmission shaft comprises a shaft rod 81 and a connecting rod 82, the connecting rod 82 is detachably connected with the fan 7, and the control handle is detachably connected with the liquid storage container 2. The suction nozzle 1 and the liquid storage container 2 are also detachably connected, Figure 5 and Figure 7 Fig. 4 shows the state of the suction device after the suction nozzle 1 and the control handle are detached.

[0039] The control handle shell 6 is also provided with a circuit board and a battery 9, and a partition plate 61 is arranged between the driving device 4 and the fan 7, and the output shaft of the driving device 4 is sealingly arranged between the driving device 4 and the partition plate 61, so as to avoid the driving device 4 and the battery 9 from contacting with the liquid in the case that the suction device is accidentally shaken to a large extent and liquid enters the air outlet pipe 5.

[0040] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. It should be noted that any modification, equivalent replacement, improvement, etc. made by those skilled in the art after reading the present specification should be included in the protection scope of the present application.

Claims

1. A gas-liquid separation suction device, comprising a suction nozzle, a liquid storage container, a rotating body, a drive shaft, and a drive unit, wherein the rotating body is located inside the liquid storage container, and the liquid storage container has an inlet pipe and an outlet pipe extending towards the rotating body at both ends, respectively, and the drive unit is connected to the rotating body via the drive shaft, characterized in that: The arrangement direction of the rotating body and the air outlet pipe is defined as the height direction, and the rotating body is located above the air outlet pipe; the rotating body comprises a top part located between the air outlet pipe and the liquid inlet pipe and an annular part surrounding the air outlet pipe, and the top part and the annular part enclose a clearance slot into which the upper end of the air outlet pipe is inserted; the top part is used to block the fluid above the rotating body from flowing to the air outlet pipe and to throw the liquid above the rotating body to the surroundings; the annular part further comprises a first annular part, an annular connecting part and a second annular part arranged in sequence from top to bottom, the annular connecting part connects the first annular part and the second annular part, and there is an air outlet gap between the rotating body and the air outlet pipe; the first annular part is provided with an air extraction through hole, and the gas in the liquid storage container enters the air outlet pipe through the air extraction through hole and the air outlet gap; the upper end of the air outlet pipe is provided with a lower annular baffle wall, the lower annular baffle wall is arranged around the air outlet pipe, the lower annular baffle wall, the annular connecting part and the second annular part enclose a liquid discharge gap in communication with the air outlet gap, and the lower surface of the annular connecting part is used to throw the liquid entering the liquid discharge gap to the inner circumferential surface of the second annular part; the upper end of the air outlet pipe is further provided with an upper annular baffle wall, the upper annular baffle wall is arranged around the air outlet pipe and located in the clearance slot, the upper annular baffle wall is located above the lower annular baffle wall, and the lower surface of the upper annular baffle wall, the upper surface of the lower annular baffle wall and the side wall of the air outlet pipe enclose an annular drainage groove, and the air extraction through hole is in communication with the annular drainage groove.

2. The gas-liquid separation suction apparatus according to claim 1, wherein: The distance between the outer circumferential surface of the upper annular baffle wall and the inner circumferential surface of the first annular part is greater than 0 mm and less than 3 mm; and the distance between the upper surface of the upper annular baffle wall and the lower surface of the top part of the rotating body is greater than 0 mm and less than 3 mm.

3. The gas-liquid separation suction apparatus according to claim 1, wherein: The distance between the outer circumferential surface of the lower annular baffle wall and the inner circumferential surface of the second annular part is greater than 0 mm and less than 3 mm; and the distance between the upper surface of the lower annular baffle wall and the lower surface of the annular connecting part is greater than 0 mm and less than 3 mm.

4. The gas-liquid separation suction apparatus according to claim 1, wherein: A plurality of air extraction through holes are uniformly distributed on the first annular part along the circumferential direction of the rotating body.

5. The gas-liquid separation suction apparatus according to claim 1, wherein: The upper end of the liquid storage container is integrally connected with the liquid inlet pipe, the liquid inlet of the liquid inlet pipe is connected with the suction nozzle, the liquid outlet of the liquid inlet pipe faces the top part of the rotating body, and the inner diameter of the liquid outlet of the liquid inlet pipe is smaller than the radial dimension of the top part of the rotating body.

6. The gas-liquid separation suction apparatus according to claim 1, wherein: The lower end of the liquid storage container is detachably connected with the air outlet pipe, and a sealing ring is arranged between the air outlet pipe and the liquid storage container.

7. The gas-liquid separation suction apparatus according to claim 6, wherein: The gas-liquid separation type suction equipment further comprises a control handle, and the control handle comprises a control handle shell, the driving device is located in the control handle shell, a fan is further arranged in the control handle shell, the driving device is connected with the fan and used to drive the fan to rotate, the rotating body is connected with the fan through a transmission shaft penetrating through the air outlet pipe, and a suction hole is arranged on the control handle shell corresponding to the fan and in communication with the air outlet pipe.

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