KR101707341B1 - A Vacium Self-priming Pump - Google Patents

Abstract

The present invention relates to a vacuum self-priming pump sucking air inside a pumping chamber to form a vacuum state and then pumping a fluid. To stably perform work by preventing an outlet to discharge air of the pumping chamber from being blocked and adsorbed by the flowing fluid during a vacuum pumping work with respect to the fluid, the vacuum self-priming pump comprises: a motor; a body having a pumping chamber including a space part with a predetermined size, and an impeller connected to a rotary shaft of the motor to be rotated and thereby sucking the fluid from an inlet to discharge the fluid to the outlet; an air discharge pipe communicating with the pumping chamber of the body to move the air of the pumping chamber; a vacuum means communicating with an end part of the air discharge pipe to discharge the air in the pumping chamber to the outside; and an air blocking means installed between the end part of the air discharge pipe and the pumping chamber to open/close the inside of the air discharge pipe. The air blocking means comprises: a tubular body having an outlet connected to the air discharge pipe to discharge the air and an inlet connected to a mouth of the pumping chamber; a buoy vertically moved inside the tubular body by buoyancy with respect to the fluid; and an opening/closing member to open/close the end part of the air discharge pipe according to lifting/lowering of the buoy. A blocking means is installed in the upper part of the buoy to prevent the fluid form popping in a direction of the outlet of the tubular body, being adsorbed, and closing the outlet of the tubular body.

Description

[0001] The present invention relates to a vacuum self-priming pump,

The present invention improves the structure of the vacuum pump suction pump of Korean Patent Registration No. 10-791044 of the present applicant. More specifically, the present invention relates to a suction pump for sucking air inside a pump chamber to form a vacuum state, And more particularly, to a vacuum forced-air suction pump capable of stably performing an operation by preventing an exhaust port through which air in a pump chamber is discharged from being blocked or adsorbed by a fluid flowing during operation of a vacuum pump of a fluid.

Generally, a pump is a device that pumps the fluid upward to forcibly move the fluid when the fluid is below the discharge port, and is used to move or circulate the fluid.

The pump is designed to be fully filled with water in the pump chamber at the initial stage of operation. In the past, a pump or a water-ring type vacuum pump, which is manually operated or continuously supplied with a certain amount of water, The air inside the pump chamber is evacuated to make the pump vacuum.

However, when the conventional pump and the water pump type vacuum pump are used to pump water containing a lot of sludge, it is necessary to initially fill the inside of the pump chamber with water.

That is, when air remains in the inside of the pump chamber, the vacuum pump is not properly provided, and the workability is deteriorated.

The applicant of the present invention has proposed a vacuum pump for sucking fluid in a vacuum state by forming the inside of the pump chamber into a vacuum state without initially being filled with water to solve the conventional problems as described above .

[0004] As described above, the vacuum force pulling pump proposed by the present applicant is Korean Patent Registration No. 10-791044 (name: vacuum force pulling pump). The vacuum pulling force pump is, as known in the art, And an air discharge means for discharging the air in the pumping chamber to the outside, and a one-way check valve is installed to prevent the fluid from flowing back to the discharge port of the pumping chamber, By forcibly discharging the fluid to the outside to generate a pressure difference, it is possible to more easily move the fluid pumped by the motor, thereby shortening the working time and minimizing the power consumption, thereby improving the efficiency of the work.

1. Korean Patent Registration No. 10-791044

However, in the vacuum pump as disclosed in Korean Patent No. 10-791044 proposed by the applicant of the present invention, when the vacuum pump of the fluid is operated, the discharge port through which the air in the pump chamber is discharged is blocked or adsorbed by the flowing fluid, There is a problem that the pump operation can not be performed stably.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned conventional problems, and an object of the present invention is to improve the structure of a vacuum strong suction pump of Korean Patent Registration No. 10-791044 of the present applicant, A suction pump for sucking air to form a vacuum state and then pumping the fluid is provided in which a discharge port through which the air in the pump chamber is discharged during operation of the vacuum pump of the fluid is prevented from being blocked or adsorbed by the flowing fluid, And to provide a vacuum forced-aspiration pump capable of performing an operation.

In order to accomplish the above object of the present invention, the vacuum strong suction pump of the present invention comprises a motor and a pump chamber having a space of a predetermined size and is connected to a rotary shaft of the motor to suck fluid from the inlet, An air discharge pipe communicating with the pump chamber of the body to move the air in the pump chamber; a vacuum means communicating with an end of the air discharge pipe to discharge the air in the pump chamber to the outside; And an air blocking unit installed between the end of the air discharge pipe and the pump chamber to open and close the inside of the air discharge pipe, The air blocking means includes a body having a discharge port connected to the air discharge pipe to discharge air and an inlet connected to an inlet of the pump chamber, and a float, which is moved up and down by buoyancy of fluid inside the body, And an opening and closing member for opening and closing an end of the air discharge pipe in accordance with the rise and fall of the rich air; The upper portion of the rich portion is provided with a shielding means for preventing the fluid from protruding in the direction of the discharge port side of the tube so as to be closed.

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Wherein the opening and closing member includes an opening and closing plate having an upper surface formed in an end portion of the air discharge pipe in close contact with the lower surface of the air discharge pipe and having a through hole extending vertically downward in the vertical direction, And a fixing pipe having a through hole communicated with the through hole so that the lower end of the extending rod is positioned inside the tubular body at the center of the receiving hole, And an opening / closing pin which is fixed to the upper end of the rich part and whose upper end is inserted and fixed in the connecting pipe fastened to the lower end of the extending rod so as to be vertically movable, and which opens and closes the through hole; The shielding means is formed of a shielding plate formed of a plate-like plate fixed to the coupling pipe.

The vacuum pump sucking pump according to the present invention as described above is a pump for sucking air inside the pump chamber to form a vacuum state and thereafter flows fluid in the inside of the tube during vacuum pumping of the fluid, The fluid is blocked by the shielding means so that the fluid is sucked to the discharge port and does not close the space of the discharge port, so that the operation can be performed stably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a vacuum force suction pump according to an embodiment of the present invention; FIG.
2 is a schematic view showing air blocking means applied to a vacuum force suction pump according to an embodiment of the present invention;
Fig. 3 is a schematic view showing a shielding means applied to a vacuum force suction pump according to the present embodiment; Fig.
Fig. 4 and Fig. 5 are schematic views showing the use state of the vacuum force suction pump according to the embodiment. Fig.
6 is a schematic view showing the use state of a shielding means applied to a vacuum force suction pump according to the present embodiment.
Fig. 7 is a schematic view showing another example of a shielding means applied to a vacuum force suction pump according to the present embodiment. Fig.
Fig. 8 is a schematic view showing still another example of shielding means applied to a vacuum force suction pump according to the present embodiment. Fig.
Fig. 9 is a schematic view showing another example of a shielding means applied to a vacuum force suction pump according to the present embodiment. Fig.

Hereinafter, a vacuum pump according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 6 show a vacuum force suction pump according to an embodiment of the present invention. The vacuum force suction pump 1 according to the present embodiment includes a motor 2, A body 5 having an impeller 4 having a pump chamber 3 having a pump chamber 3 connected to the rotary shaft of the motor 2 and rotating to draw the fluid from the inlet to the outlet, And a vacuum means 7 communicating with an end of the air discharge pipe 6 to discharge the air in the pump chamber 3 to the outside, And air blocking means 8 installed between the end of the air discharge pipe 6 and the pump chamber 3 for opening and closing the inside of the air discharge pipe 6.

That is, the air shutoff means 8 is provided between the air discharge pipe 6 and the inlet of the pump chamber 3 to block the pump chamber 3 and the air discharge pipe 6 through buoyancy of the fluid Or released.

It is preferable that the outlet of the pump chamber 3 is provided with a check valve 9 for preventing the back flow of the fluid.

That is, when the pump chamber 3 is formed in the vacuum state through the vacuum means 7, external air and fluid are prevented from flowing backward through the outlet so that the vacuum state of the pump chamber 3 is smoothly implemented Most preferably,

The check valve 9 may be a one-way check valve that prevents the fluid and air from flowing back to the pump chamber 3 from the outlet and discharges the fluid to the outside through the outlet, The pump chamber 3 is provided with an electromagnetic valve that is actuated to receive and drive the pump chamber 3 and is driven according to user's selection so that air or fluid flows back from the outside to the pump chamber 3, It is preferable that the pump chamber 3 can more smoothly form a vacuum state.

In the vacuum forced air sucking pump 1 according to the present embodiment, the air shutoff means 8 has an outlet H connected to the air discharge pipe 6 and an inlet connected to the inlet of the pump chamber 3, A tubular body 81 having a tubular shape; An opening and closing member 82 for opening and closing the end portion of the air discharge pipe 6 in accordance with the ascending and descending of the rich portion 82; (83).

That is, when the fluid 82 becomes higher due to the buoyant force of the fluid and the fluid 82 ascends upward, the opening and closing member 83 closes the end portion of the air discharge pipe 6 and the buoyant force of the fluid is lowered, The opening and closing member 83 opens the end of the air discharge pipe 6.

In the vacuum forced sucking pump 1 according to the present embodiment, the air discharge pipe 6 is provided with a shutoff valve 11 for shutting off the movement of the fluid, It is possible to prevent the fluid from flowing out to the vacuum means 7 through the air discharge pipe 6 after the driving of the vacuum pump 7 is stopped to secure safety.

That is, when the space of the air discharge pipe 6 is closed through the shut-off valve 11 after the driving of the vacuum means 7 is stopped, the fluid flows out to the vacuum means 7 without interruption, And the safety is realized.

The vacuum suction pump 1 according to the present embodiment receives the sensed data on the vacuum state of the pump chamber 3 and calculates the vacuum state of the vacuum chamber 7 and the shutoff valve 11 according to the set data. And a control means (12) adapted to control the backflow prevention valve (9) and the motor (2).

That is, it is preferable that the shut-off valve 11, the check valve 9 and the motor 2 are controlled by the control means 13 so as to be driven and released when necessary.

 The sensing means 14 senses the level of the fluid received in the pump chamber 3 and senses whether a vacuum state is established and applies the data on the sensed level of the fluid to the control means 12 .

In other words, it is most preferable that the vacuum state of the pump chamber 3 is sensed in real time through the sensing means 13 to obtain the base data on whether the motor 2 and the vacuum means 7 are driven or not Do.

The sensing means 13 may be a water level sensor for sensing the level of the fluid and may be located in the pump chamber 3 or at the inlet of the pump chamber 3 or in the tube 81 And may be disposed at a position corresponding to a water level enough to perform a vacuum pump in the pump chamber 3, and it is most preferable to arrange the pump according to user's selection.

It is preferable that the control means 12 controls the drive of the shut-off valve 11, the vacuum means 7 and the motor 2. In accordance with the set data, The control means controls and adjusts the driving of the vacuum means 7 and the opening of the shutoff valve 11 in the vacuum state of the pump chamber 3 sensed by the sensing means 14 The driving of the vacuum means 7 is stopped and the shutoff valve 11 is closed and the motor 2 is driven to continuously maintain the rotation of the impeller 4, It is most preferable that the fluid is vacuum-pumped through the pump chamber 3.

2, the upper surface of the opening and closing member 83 is connected to the end of the air discharge pipe 6, An opening and closing plate 832 which is hermetically closed and hermetically connected to the lower end of the tubular body 81 and has an extension rod 831 extending downward at the bottom and formed with a through hole vertically passing through the center thereof, (832), and a lower end of the extending rod (831) is fixed to the center of the receiving hole so as to be penetrated so as to be positioned inside the tubular body (81) A fixture 834 having a fixing pipe 833 having a through hole and a lower end connected to the upper end of the supporter 82 and having an upper end connected to the lower end of the extension rod 831 And an opening / closing pin 836 which is inserted and fixed so as to be vertically movable from inside to open / close the through hole.

That is, the air in the pump chamber 3 is supplied to the air discharge pipe 6 through the outlet H and discharged to the outside, thereby forming the pump chamber 3 in a vacuum state.

Thus, until the fluid is introduced into the pump chamber 3 and the air is completely exhausted and the opening / closing plate 832 is raised by the rich air 82 to close the end of the air discharge pipe 6, The air in the pump chamber 3 is smoothly discharged through the air discharge pipe 6.

After the pumping operation of the fluid is completed, the rich portion 82 is lowered and the air hole is opened to inject air into the air discharge pipe 6 through the air hole, And the vacuum state inside the vacuum means 7 are released to return the rich portion 82 and the opening / closing plate 832 to the original position in a stable manner, thereby realizing smooth initialization.

The opening and closing pin 836 is opened and closed while being moved up and down by the buoyancy of the richer member 82 inside the connecting pipe 835 so that the up and down movement of the opening and closing pin 836, The through hole is smoothly opened and closed by the opening 836.

 The upper surface of the opening and closing pin 836 is preferably provided with a sealing element made of an elastic material to seal the through hole more smoothly.

The connection pipe 835 is formed with an air flow hole 837 communicating with the inside and outside to supply air through the air flow hole 837.

As described above, in the vacuum forced air suction pump 1 according to the present embodiment, the fluid is prevented from being sucked and clogged in the direction of the discharge port H side of the tubular body 83 on the upper portion of the above- Shielding means 10 is provided.

It is preferable that the shielding means 10 comprises a shielding plate formed of a plate-shaped plate fixed to a portion connecting the rich portion 82 and the opening and closing member 83.

Accordingly, during the operation of vacuum-pumping the fluid after sucking in the air in the pump chamber 3 to form a vacuum state, the fluid flows inside the tubular body 81 and flows out or flows toward the outlet H side The fluid is blocked by the shielding means 10 so that the fluid is attracted to the discharge port H and does not close the space of the discharge port H, so that the operation can be performed stably.

In addition, the shielding means 10 prevents the upward / downward movement of the opening / closing pin 836 from being disturbed by flowing into the connecting pipe 835 through the air circulation hole 837, Thereby securing reliability.

The connection pipe 835 includes an upper cylinder 835a and a lower cylinder 835b. And a lower cylinder (835b) in which the upper end of the opening / closing pin (836) is received and fixed; And may be coupled to the coupling portion of the upper cylinder 835a and the lower cylinder 835b in a screwed manner.

At this time, it is most desirable that the shielding means 10 is formed with a fitting hole 10a to be fitted and fixed to the connection portion between the upper cylinder 835a and the lower cylinder 835b.

7, the shielding means 10 may be a plate having a cap shape whose outer circumferential surface is located lower than the center. In this case, It is possible to induce free fall while dispersing it to the outside.

8, the shielding means 10 may be formed of a plate having a cup shape whose outer circumferential surface is located above the center. In this case, And the center can be formed to be able to be positioned in the space between and protect the movable body from flowing.

At this time, a drain hole 10b is formed on the central portion so as to discharge the fluid,

As shown in FIG. 8, when the shielding means 10 is fitted in the coupling pipe 835, the upper and lower portions of the shielding means 10 are engaged with each other in a state in which the washer ring is placed. It is most preferable to apply it at the user's option.

The shielding means 10 may be made of a metal material or a rubber material, and is most preferably applied by a user.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: vacuum pump suction pump 2: motor
3: pump chamber 4: impeller
5: Body 6: Air discharge tube
7: Vacuum means 8: Air blocking means
81: Tube 82: rich
83: opening / closing member 831:
832: opening / closing plate 833: fixed pipe
834: Fixture 835: Connector
835a: upper cylinder 835b: lower cylinder
836: opening / closing pin 837: air circulation hole
9: Non-return valve 10: Shielding means
10a: insertion hole 10b: drain hole
11: shutoff valve 12: control means
13: sensing means H: outlet

Claims (3)

A motor 2 and a pump chamber 3 having a predetermined space and connected to the rotating shaft of the motor 2 to rotate the motor 2 to suck the fluid from the inlet and discharge the fluid to the outlet, An air discharge pipe 6 communicating with the pump chamber 3 of the body 5 to move air in the pump chamber 3 and an air discharge pipe 6 communicating with an end of the air discharge pipe 6, (8) installed between the end of the air discharge pipe (6) and the pump chamber (3) to open and close the inside of the air discharge pipe (6) (1), comprising:
The air blocking means (8)
A tubular body 81 connected to the air discharge pipe 6 and having an outlet port through which air is discharged and an inlet port connected to the inlet port of the pump chamber 3; And an opening and closing member 83 for opening and closing the end of the air discharge pipe 6 in accordance with the ascending and descending of the rich body 82;
On the upper portion of the above-mentioned rich portion 82,
A shielding means (10) is provided to prevent fluid from splashing and closing in the direction of the outlet of the tube (81);
The opening / closing member (83)
An opening / closing plate 832 having an upper surface which is in close contact with the end portion of the air discharge pipe 6 and which is extended downward at the bottom surface and has a through hole formed vertically through the center thereof, And a lower end of the extension rod 831 is disposed at the center of the receiving hole and is connected to the inside of the tubular body 81 A lower end of the fixing body 834 is fixed to the upper end of the supporter 82 and an upper end of the fixing body 834 is fastened to the lower end of the extension rod 831. [ And an opening / closing pin (836) inserted / fixed in the coupling pipe (835) so as to be vertically movable so as to open / close the through hole;
The shielding means (10)
And a shield plate made of a plate shaped plate fixed to the connection pipe. delete delete

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