CN219038506U - Negative pressure liquid suction device - Google Patents

Abstract

The utility model relates to a negative pressure aspirator, comprising: the device comprises a transfusion tube, a pneumatic absorber, a plurality of support columns, a filter screen, an air tube and a pressure gauge, wherein the pneumatic absorber is connected with the inlet end of the transfusion tube and is provided with an inlet, an outlet and an air tube interface, and an annular groove is formed in the outer wall of the pneumatic absorber; the support columns are radially and symmetrically fixedly arranged on the inlet end face of the pneumatic suction device; the filter screen is sleeved on the plurality of support columns and supported by the support columns, and the opening of the filter screen is fixed at the annular groove through the throat hoop; the first end of the air pipe is connected with an air pipe interface of the pneumatic aspirator, and the second end of the air pipe is connected with an air source; the pressure gauge is arranged on the air pipe. The negative pressure liquid suction device adopts a pneumatic material suction device, has a small structure, can be directly placed into an oil receiving tray of waste lubricating oil of an injection molding machine, and avoids secondary pollution.

Description

Negative pressure liquid suction device

Technical Field

The utility model belongs to the field of environmental protection equipment, and particularly relates to a negative pressure liquid suction device.

Background

The waste lubricating oil of the injection molding machine is stored at the lowest part of the equipment, a reserved oil drain port is smaller, large oil suction equipment cannot enter, small tools are required to be manually used for scooping out from an oil receiving disc of the equipment, and then the small tools are poured into other containers, so that secondary pollution is caused to the field environment.

CN217505321U discloses a transformer oil extraction device and transformer subassembly, including coupling assembling and oil pumping subassembly, coupling assembling includes butt joint spare and coupling hose, the butt joint spare has both ends open-ended linking chamber, linking chamber's first end is configured to dock with the oil discharge port of transformer, the second end is connected with coupling hose's first end, and linking chamber's partial chamber wall's internal diameter is increased by linking chamber's first end to linking chamber's second end gradually, oil pumping subassembly includes oil pumping pipe and movable piston spare that sets up in oil pumping pipe, oil pumping pipe is connected with coupling hose's second end, oil pumping subassembly is configured to when piston spare is relative oil pumping pipe activity, take oil through the transformer oil in the transformer out of negative pressure, can be when the inside negative pressure of transformer.

The patent is to form negative pressure oil extraction through the piston, and a piston piece is required to be manually pulled, so that time and labor are wasted.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a negative pressure liquid suction device which adopts a pneumatic material suction device and has a small structure and is time-saving and labor-saving in use.

The technical scheme adopted for solving the technical problems is as follows:

a negative pressure aspirator, comprising: the device comprises a transfusion tube, a pneumatic aspirator, a plurality of support columns, a filter screen, an air tube and a pressure gauge, wherein the transfusion tube is provided with an inlet end and an outlet end; the pneumatic suction device is connected with the inlet end of the infusion tube and is provided with an inlet, an outlet and an air pipe connector, an annular groove is formed in the outer wall of the pneumatic suction device, a circle of air outlet holes are formed in the inner wall of the pneumatic suction device, and the air outlet holes face the outlet side; the support columns are radially and symmetrically fixedly arranged on the inlet end face of the pneumatic suction device; the filter screen is sleeved on the plurality of support columns and supported by the support columns, and the opening of the filter screen is fixed at the annular groove through the throat hoop; the air pipe is provided with a first end and a second end, the first end of the air pipe is connected with an air pipe interface of the pneumatic aspirator, and the second end of the air pipe is connected with an air source; the pressure gauge is arranged on the air pipe.

Further, the device also comprises a waste liquid container which is connected with the outlet end of the infusion tube.

Further, the infusion tube is a hose.

Further, the infusion tube is a telescopic hose.

Further, an outlet of the pneumatic aspirator is connected with a pagoda interface, and the pagoda interface is connected with an inlet end of the infusion tube.

Further, the pressure gauge is mounted at the second end of the air tube.

The utility model has the advantages and positive effects that:

the negative pressure liquid suction device adopts a pneumatic material suction device, has a small structure, can be directly placed into an oil receiving disc of waste lubricating oil of an injection molding machine, and avoids secondary pollution. And no moving parts, safety, no noise and instant start and stop.

Drawings

Fig. 1 is a perspective view of a structure according to an embodiment of the present utility model;

FIG. 2 is a connecting structure diagram of the pneumatic aspirator and the filter screen;

FIG. 3 is a diagram showing the connection structure of the pneumatic suction device and the support column;

FIG. 4 is a front view of the structure of the pneumatic suction device;

FIG. 5 is a schematic view of the structure of the air outlet hole in the pneumatic suction device;

fig. 6 is a schematic diagram of the mounting structure of the pressure gauge.

Wherein the above figures include the following reference numerals:

the device comprises a filter screen 1, a pneumatic absorber 2, a transfusion tube 3, an air pipe 4, a pressure gauge 5, a support column 6, an inlet 21, an outlet 22, an air pipe interface 23, an annular groove 24, an air outlet 25 and a pagoda interface 26.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the description of the present utility model, it should be understood that, furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

A pipette, comprising: the pneumatic suction device comprises a transfusion tube 3, a pneumatic suction device 2, a plurality of support columns 6, a filter screen 1, an air pipe 4 and a pressure gauge 5, wherein the transfusion tube 3 is provided with an inlet 21 end and an outlet 22 end; the pneumatic aspirator 2 is connected with the inlet 21 end of the infusion tube 3, the pneumatic aspirator 2 is provided with an inlet 21, an outlet 22 and an air pipe interface 23, the outer wall of the pneumatic aspirator 2 is provided with an annular groove 24, and the annular groove 24 is used for fixing the filter screen 1. The inner wall of the pneumatic aspirator 2 is provided with a circle of air outlet holes 25, and the air outlet holes 25 face the side of the outlet 22.

When compressed air enters the annular high-pressure cavity in the pneumatic aspirator 2 through the air pipe 4, air flow is ejected at a high speed, low pressure is generated at the inlet 21 by the high-speed air flow to form vacuum, and then materials at the inlet 21 are inhaled by the high-pressure air flow and move along with the compressed air, and are conveyed to a waste liquid container through the infusion tube 3.

In order to filter impurities, a filter screen 1 is sleeved at an inlet 21 of the pneumatic absorber 2. In order to support the filter screen 1, a plurality of support columns 6 are radially and symmetrically fixed on the end face of an inlet 21 of the pneumatic suction device 2, the filter screen 1 is sleeved on the support columns 6, the filter screen 1 is supported by the support columns 6, and an opening of the filter screen 1 is fixed at the annular groove 24 by a hose clamp.

The air pipe 4 is provided with a first end and a second end, the first end of the air pipe 4 is connected with an air pipe interface 23 of the pneumatic aspirator 2, and the second end of the air pipe 4 is connected with a compressed air source;

for pressure control, a pressure gauge 5 is mounted on the air pipe 4, the pressure gauge 5 being mounted at a second end of the air pipe 4.

For ease of laying, the infusion tube 3 is a hose, preferably a flexible hose.

For easy connection, the outlet 22 of the pneumatic aspirator 2 is connected with a tower connector 26, and the tower connector 26 is connected with the inlet 21 end of the infusion tube 3.

The application method of the utility model comprises the following steps:

the pneumatic suction device 2 is placed in an oil pan of the waste lubricating oil of the injection molding machine, compressed air is started, the pneumatic suction device 2 sucks the waste lubricating oil into the infusion tube 3, and the waste lubricating oil is conveyed into a waste liquid container through the infusion tube 3. The pressure of the compressed air is controlled to be 0.55-0.65Mpa by using a pressure gauge 5.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A negative pressure aspirator, comprising:

a transfer tube (3), the transfer tube (3) having an inlet (21) end and an outlet (22) end;

the pneumatic absorber (2) is connected with the inlet (21) end of the infusion tube (3), the pneumatic absorber (2) is provided with an inlet (21), an outlet (22) and an air tube interface (23), an annular groove (24) is formed in the outer wall of the pneumatic absorber (2), a circle of air outlet holes (25) are formed in the inner wall of the pneumatic absorber (2), and the air outlet holes (25) face the outlet (22);

the support columns (6) are radially and symmetrically fixed on the end face of an inlet (21) of the pneumatic aspirator (2);

the filter screen (1) is sleeved on the support columns (6), the support columns (6) are used for supporting the filter screen, and the opening of the filter screen (1) is fixed at the annular groove (24) through a hose clamp;

the air pipe (4) is provided with a first end and a second end, the first end of the air pipe (4) is connected with an air pipe interface (23) of the pneumatic aspirator (2), and the second end of the air pipe (4) is connected with an air source;

-a pressure gauge (5), said pressure gauge (5) being mounted on said air pipe (4).

2. The negative pressure aspirator according to claim 1, characterized in that it further comprises a waste liquid container connected to the outlet (22) end of the infusion tube (3).

3. The negative pressure aspirator according to claim 2, characterized in that the infusion tube (3) is a hose.

4. A negative pressure pipette according to claim 3, characterized in that the infusion tube (3) is a flexible tube.

5. The negative pressure aspirator according to claim 4, characterized in that the outlet (22) of the pneumatic aspirator (2) is connected to a pagoda interface (26), the pagoda interface (26) being connected to the inlet (21) end of the infusion tube (3).

6. Negative pressure aspirator according to claim 5, characterized in that the pressure gauge (5) is mounted at the second end of the air tube (4).

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