CN203711447U - Portable vacuum liquid sucking device - Google Patents

Abstract

The utility model discloses a portable vacuum liquid sucking device, comprising a substrate, a vacuum generator and a liquid sucking disc; an air path communicated with an air source is arranged on the substrate; the interior of the vacuum generator is communicated with the air path; the vacuum generator is communicated with the liquid sucking disc by a liquid sucking pipe; a liquid draining pipe is arranged on the vacuum generator; the liquid sucking pipe is communicated with the liquid draining pipe in the vacuum generator. The portable vacuum liquid sucking device performs the liquid sucking work according to the work principle of the vacuum generator, high-speed air flow is introduced into the vacuum generator by the air path, negative pressure is generated in the vacuum generator, the drainage is sucked away by the liquid sucking disc through using the negative pressure. The portable vacuum liquid sucking device simple and compact in structure, convenient and fast to mount, low in machining cost and safe in use and the energy consumption is reduced.

Description

A Portable Vacuum Aspirator

technical field

The utility model relates to a drainage device, in particular to a portable vacuum liquid absorber.

Background technique

Cleaning equipment is widely used in various industries. At present, most of the cleaning equipment has a water or oil receiving pan at the bottom. Since the bottom of the pan is close to the ground, it is impossible to install a drain pipe. Once there is liquid in the water pan, the pan must be removed in time. The liquid in it is extracted cleanly to avoid overflowing and contaminating the ground. Now, motor-type liquid suction pumps are generally used to pump liquid. This type of pump is large in size and difficult to install and place at the bottom of equipment with limited space or other narrow spaces, and cannot work smoothly to discharge these parts. Effusion, at this time, it is necessary to manually wipe dry with a dry cloth, which increases the labor intensity of the operator, reduces work efficiency, and increases the cost of auxiliary materials. In addition, the purchase price of the motor-type liquid suction pump is relatively high, and maintenance is also more troublesome. . The utility model with the publication number CN2491485Y disclosed a vacuum automatic liquid aspirator on May 15, 2002. Its structure is to set a water inlet valve on the top of a cylindrical cylinder-shaped liquid aspirator, and install an exhaust valve on the upper side. , the water inlet pipe with movable valve and buoy in the lower part enters the liquid aspirator from the bottom; The biggest advantage of the vacuum automatic liquid aspirator is that it does not need electricity or other power, can be self-sufficient and self-priming, and can circulate continuously. It is time-saving, labor-saving, safe and reliable, and has a long service life. It has broad market demand and good economic benefits. However, this liquid aspirator needs to store water in a larger steel cylinder and generate a vacuum as the liquid suction power through the drop of the water level in the steel cylinder. Although it is energy-saving, its huge volume and related supporting construction greatly limit its application.

Utility model content

The existing liquid suction device has a large volume and is inconvenient to use in many occasions with limited space. In order to overcome this defect, the utility model provides a portable vacuum liquid suction device with a small structure, convenient maintenance, and can be used in a narrow space. .

The technical scheme of the utility model is: a portable vacuum liquid aspirator, including a base, a vacuum generator and a liquid suction plate, the base is provided with an air passage connected to the air source, and the inside of the vacuum generator is connected with the air passage. The vacuum generator communicates with the liquid suction plate through a liquid suction pipe, and the vacuum generator is also provided with a liquid discharge pipe, and the liquid suction pipe and the liquid discharge pipe communicate with each other inside the vacuum generator. The vacuum generator uses the nozzle to spray compressed air at high speed, forming a jet at the outlet of the nozzle to generate entrainment flow. Under the effect of entrainment, the air around the outlet of the nozzle is continuously sucked away, reducing the pressure in the adsorption chamber to Below the atmospheric pressure, that is negative pressure, a certain degree of vacuum is formed. Figure 1 shows the working principle of the vacuum generator. It can be known from fluid mechanics that for incompressible air gas (gas flowing in a non-closed pipeline, it can be approximately considered as incompressible air), the continuity equation is applicable

A1v1 ² = A2v2 ² , in the formula, A1, A2--the cross-sectional area of the pipeline; v1, v2--the air flow velocity can be seen from the above formula, the cross-section increases, the flow velocity decreases; the cross-section decreases, the flow velocity increases . For horizontal pipelines, according to the Bernoulli ideal energy equation of incompressible air P1+1/2ρv1 ² =P2+1/2ρv2 ² where P1, P2----corresponding pressure at section A1, A2; v1, v2 ----Corresponding flow velocity at section A1, A2; ρ----The density of air From the above formula, it can be known that the flow velocity increases and the pressure decreases. When v2>v1, P1>P2. When v2 increases to a certain value, P2 will be less than one atmospheric pressure, that is, negative pressure will be generated. Therefore, the negative pressure can be obtained by increasing the flow rate to generate suction. The utility model is to carry out liquid suction work according to the working principle of the vacuum generator. The vacuum generator introduces high-speed airflow through the air channel, generates negative pressure inside the vacuum generator, and connects the liquid suction plate to the vacuum generator through the suction pipe. , and then put the suction cup on the place where the liquid is accumulated, so that the bottom of the suction cup is in contact with the liquid to be absorbed, and the negative pressure is transmitted to the suction cup to suck away the liquid. The utility model does not require electric power supply like the motor-type liquid suction pump, and can work only with compressed air source, which is very suitable for use in places with ready-made compressed air supply, such as car washes and production workshops.

Preferably, a manual air source valve is provided in the airway. When the liquid aspirator is used, the opening and closing of the air source valve can be manually controlled, and the work can be started in a timely and flexible manner depending on the amount of effusion, reducing ineffective work and energy consumption.

Preferably, the liquid suction pan is trumpet-shaped. The trumpet-shaped shape is convenient for the liquid in the liquid suction plate and the liquid receiving plate to be absorbed in a large area, and the liquid absorbing plate is placed on the surface of the liquid receiving plate and is not easy to dump.

Preferably, several openings are provided on the edge of the bell mouth of the liquid suction pan. Setting the opening can prevent the bottom of the suction pan from sealing with the surface of the suction pan when absorbing liquid, so that the liquid can be sucked away quickly and smoothly.

Preferably, the vacuum generator is screwed to the base. The threaded connection structure is easy to ensure the tightness of the connection, and facilitates the quick disassembly and assembly of the vacuum generator, improving the convenience of maintenance.

Preferably, a filter screen fixed by a filter screen snap ring is arranged on the liquid suction plate. The filter screen can prevent the impurities in the effusion from entering the pipeline, avoiding the clogging of the pipeline, resulting in reduced or even lost liquid absorption capacity. The filter screen is fixed by the filter snap ring, which is convenient for disassembly and assembly, and is convenient for daily maintenance.

Preferably, the shape of the vacuum generator is a prism. The prismatic shape of the ejector allows for easy screwing and unscrewing of the ejector from the base using a wrench or simply by hand.

The beneficial effects of the utility model are:

The structure is simple and small, and the installation is convenient and quick. The utility model converts the external compressed air into a vacuum through a vacuum generator to generate suction, has no moving parts and complicated moving mechanisms, and is small in size and not easily restricted by a narrow space.

The processing cost is low, which can reduce the purchase cost. Due to the simple structure, the utility model is relatively easy to process and cheap in cost.

Safe to use and reduce energy consumption. The utility model uses compressed air as a working medium, and the device itself does not need electricity, so it is safe and energy-saving.

Description of drawings

Figure 1 is the working principle diagram of the vacuum generator;

Fig. 2 is a schematic diagram of a state after the vibration damping pad is installed.

In the figure, 1-base, 2-air source valve, 3-vacuum generator, 4-suction pipe, 5-drain pipe, 6-suction pan, 7-filter snap ring, 8-filter, 9 -airway.

Detailed ways

The utility model will be further described below in conjunction with the specific embodiments of the accompanying drawings.

Example:

As shown in Figure 2, a portable vacuum aspirator is used for cleaning equipment. The portable vacuum aspirator includes a base 1, a vacuum generator 3 and a suction plate 6, and the base 1 is processed by 45 ^# steel. As a result, three threaded holes are designed on the bottom of the base 1, which is convenient for fixing on equipment or other supports. The vacuum generator 3 is screwed to the base 1, and the top of the base 1 is provided with an air channel 9 connected to an air source, thereby introducing external compressed air. The shape of the vacuum generator 3 is a prism. In this embodiment, it is a hexagonal prism, which is also processed from 45 ^# steel. Its inside is provided with a T-shaped passage. The three interfaces of the passage are respectively connected to the air passage 9, a The liquid suction pipe 4 made of PU communicates with a liquid discharge pipe 5, and the interface caliber connecting the air channel 9 is smaller than the interface caliber connecting the liquid discharge pipe 5, and the other end of the liquid suction pipe 4 communicates with the liquid suction plate 6, and the air channel 9 is provided with There is a manually controlled air source valve 2, which is opened and closed by a pull rod. The suction pan 6 is trumpet-shaped, and the edge of the bell mouth of the suction pan 6 is provided with several openings. The liquid suction plate 6 is provided with a filter screen 8, and the filter screen 8 is fixed with the filter screen snap ring 7.

When in use, fix the base 1 on the cleaning equipment with bolts, connect the air channel 9 and the compressed air output port with a hose, place the liquid suction plate 6 on the water receiving tray of the cleaning equipment, and take another empty bucket for receiving the drain. The water discharged from the liquid pipe 5. When the water in the water tray is half full, pull the pull rod to open the air source valve 2, the compressed air enters the vacuum generator 3 through the air channel 9, flows at a high speed in the vacuum generator 3, and generates a negative pressure at the interface connected to the suction pipe 4. pressure, the external atmospheric pressure presses the water in the water receiving tray into the vacuum generator 3 through the suction pipe 4, and is sprayed out through the liquid discharge pipe 5 along with the high-speed airflow in the vacuum generator 3, and is collected in the above-mentioned bucket, so The water in the water tray is gradually sucked dry.

Claims (7)

1. A portable vacuum aspirator, which is characterized in that it includes a base (1), a vacuum generator (3) and a suction plate (6), and the base (1) is provided with an air passage for connecting the air source ( 9), the interior of the vacuum generator (3) communicates with the airway (9), the vacuum generator (3) communicates with the suction plate (6) through a suction tube (4), and the vacuum generator (3) is also equipped with There is a liquid discharge pipe (5), and the suction pipe (4) communicates with the liquid discharge pipe (5) inside the vacuum generator (3). 2. The portable vacuum liquid aspirator according to claim 1, characterized in that the air passage (9) is provided with a manual air source valve (2). 3. The portable vacuum aspirator according to claim 1, characterized in that the suction plate (6) is trumpet-shaped. 4. The portable vacuum aspirator according to claim 3, characterized in that there are several openings on the edge of the bell mouth of the suction plate (6). 5. The portable vacuum aspirator according to claim 1, characterized in that the vacuum generator (3) is screwed to the base (1). 6. The portable vacuum aspirator according to claim 5, characterized in that the shape of the vacuum generator (3) is a prism. 7. The portable vacuum aspirator according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that the suction plate (6) is provided with a filter (8) fixed by a filter snap ring (7) .