CN203906409U

CN203906409U - Vacuum generator

Info

Publication number: CN203906409U
Application number: CN201420353566.8U
Authority: CN
Inventors: 王文峰; 侯晨昇
Original assignee: TIANJIN HANGLIAN DIKE TECHNOLOGY Co Ltd
Current assignee: TIANJIN HANGLIAN DIKE TECHNOLOGY Co Ltd
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2014-10-29
Anticipated expiration: 2024-06-27

Abstract

The utility model provides a vacuum generator. The vacuum generator comprises a nozzle, a main body and a joint, wherein a first air inlet and an air outlet are respectively formed in two ends of the main body; an inner cavity is formed in the main body and comprises an entrainment chamber, a first channel and an air outlet chamber which are sequentially communicated with one another; the entrainment chamber is communicated with the first air inlet; the air outlet chamber is communicated with the air outlet; a vacuum opening is formed in one side of the main body and is communicated with the entrainment chamber; the main body is connected with the nozzle at the end of the first air inlet; the nozzle comprises a second air inlet and a jet orifice; the jet orifice is just opposite to the air inlet of the first channel; the main body is connected with the joint at the air outlet; the joint is tubular. The vacuum generator disclosed by the utility model is simple in structure and convenient to assemble and disassemble, the structural form has high adsorption capability, and the vacuum degree requirement on a blow-down tank is met.

Description

A kind of vacuum generator

Technical field

The utility model relates to a kind of vacuum generator.

Background technique

In actual life, China's train closet mostly adopts direct-exhausting type, directly be discharged on railway by excrement, affect to a great extent railway health and environment is damaged, therefore people change into lavatory again the toilet waste collector that excrement can be collected, this toilet waste collector comprises urinal, water tank, dirt box and vacuum pumping device, its working principle is that application vacuum pumping device is by the dirt box state that is evacuated, like this owing to there being pressure difference, the dirt of being discharged by urinal can be drawn in dirt box fast, but this vacuum pumping device often adopts vacuum pump form, volume is larger, price is higher, and in use can produce larger noise.

Model utility content

Problem to be solved in the utility model be to provide a kind of simple in structure, easy to use, do not have noise vacuum generator.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of vacuum generator, comprises nozzle, main body and connecting head;

Described main body two ends are respectively equipped with the first suction port and air outlet, in described main body, be provided with inner chamber, described inner chamber comprise be successively communicated with entrainment chamber, first passage and discharge chamber, the diameter of described first passage is less than respectively the diameter that entrainments chamber and discharge chamber, describedly entrainment chamber and the first suction port communicates, described discharge chamber and air outlet communicate, and described main body one side is provided with vacuum port, described vacuum port and entrainment chamber and communicate;

Described main body is connected with nozzle at the first suction port end, this nozzle comprises the second suction port and jetburner, between described the second suction port and jetburner, be provided with second channel, and the diameter of described second channel is less than the diameter of the second suction port, described jetburner is between vacuum port center line and the suction port of first passage, and described jetburner is the suction port to first passage just;

Described main body is connected with connecting head in air outlet, and described connecting head is tubulose.

Further, between described first passage and discharge chamber, be provided with tapering transition chamber.

Further, described jetburner is the tubaeform of outward opening.

Further, described nozzle and main body are for being threaded, and the second suction port end of this nozzle is positioned at the outside of main body.

Further, described connecting head and main body are for being threaded.

Further, described connecting head is provided with hangnail joint at one end outer surface relative with main body connecting end, and described hangnail joint and connecting head are one-body molded.

Advantage and the good effect that the utlity model has are:

1). the utility model is simple in structure, machinery-free friction in using process, while therefore use, noise is minimum, and the gas channel of this vacuum generator meets Venturi principle, has very strong adsorptive power, meets the requirement of Waste Valves degree of vacuum.

2). in the utility model, nozzle is connected with main body screw respectively with connecting head, the second suction port end of nozzle is positioned at the outside of main body, this Placement installation and removal fast and easy, therefore in use changes rapidly, has improved to a great extent and has become to produce efficiency.

3). in the utility model, connecting head is provided with hangnail joint, and this structural type just can quick mounting without setting tool, has improved to a certain extent installation efficiency.

Brief description of the drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model main body sectional view;

In figure:

1. nozzle, 2. vacuum port, 3. main body, 4. first passage,

5. tapering transition chamber, 6. discharge chamber, 7. hangnail joint, 8. connecting head,

9. entrainment chamber, 10. jetburner, 11. second channels, 12. second suction ports,

13. first suction ports, 14. air outlets.

Embodiment

Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.

As shown in Figure 1 and Figure 2, a kind of vacuum generator, comprises nozzle 1, main body 3 and connecting head 8;

Described main body 3 two ends are respectively equipped with the first suction port 13 and air outlet 14, in described main body 3, be provided with inner chamber, described inner chamber comprise be successively communicated with entrainment chamber 9, first passage 4 and discharge chamber 6, between described first passage 4 and discharge chamber 6, be provided with tapering transition chamber 5, the diameter of described first passage 4 is less than respectively the diameter that entrainments chamber 9 and discharge chamber 6, describedly entrainment chamber 9 and the first suction port 13 communicates, described discharge chamber 6 and air outlet 14 communicate, described main body 3 one sides are provided with vacuum port 2, described vacuum port 2 one end and entrainment chamber 9 and communicate, these vacuum port 2 the other ends are connected with dirt box,

Described main body 3 is threaded at the first suction port 13 ends and nozzle 1, this nozzle 1 comprises the tubaeform jetburner 10 of the second suction port 12 and outward opening, described the second suction port 13 is externally connected with source of high pressure air, jetburner 10 is between the center line of vacuum port 2 and the suction port of first passage 4, jetburner 10 is the suction port to first passage 4 just, between the second suction port 12 and jetburner 10, be provided with second channel 11, and the diameter of described second channel 11 is less than the diameter of the second suction port 12;

Described main body 3 is threaded in air outlet 14 and connecting head 8, and described connecting head 8 is tubulose, and connecting head 8 is provided with hangnail joint 7 at one end outer surface relative with main body 3 connecting ends.

While implementing the utility model, the high-pressure air of source of high pressure air output enters nozzle 1, due to the second suction port 12 of nozzle 1, the Venturi effect that second channel 11 and tubaeform jetburner 10 form, therefore eject high-voltage high-speed airflow by jetburner 10, when this high-voltage high-speed airflow passes through volume air chamber 9, space after interior jetburner 10 walls of volume air chamber 9 is that vacuum port 2 places produce degree of vacuum, air in the dirt box that so just makes to be connected with vacuum port 2 is sucked into volume air chamber 9, and enter into first passage 4 with high-voltage high-speed airflow, then behind tapering transition chamber 5, enter discharge chamber, enter into discharge conduit through connecting head again, finally be disposed in air.

Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should still belonging to patent covering scope of the present utility model.

Claims

1. a vacuum generator, is characterized in that: this vacuum generator comprises nozzle, main body and connecting head;

Described main body is connected with nozzle at the first suction port end, this nozzle comprises the second suction port and jetburner, between described the second suction port and jetburner, be provided with second channel, and the diameter of described second channel is less than the second suction port diameter, described jetburner is between vacuum port center line and the suction port of first passage, and described jetburner is the suction port to first passage just;

2. a kind of vacuum generator according to claim 1, is characterized in that: between described first passage and discharge chamber, be provided with tapering transition chamber.

3. a kind of vacuum generator according to claim 1, is characterized in that: described jetburner is the tubaeform of outward opening.

4. a kind of vacuum generator according to claim 1, is characterized in that: described nozzle and main body are for being threaded, and the second suction port end of this nozzle is positioned at main body outside.

5. a kind of vacuum generator according to claim 1, is characterized in that: described connecting head and main body are for being threaded.

6. a kind of vacuum generator according to claim 1, is characterized in that: described connecting head is provided with hangnail joint at one end outer surface relative with main body connecting end, and described hangnail joint and connecting head are one-body molded.