CN206409443U

CN206409443U - Vacuum generator

Info

Publication number: CN206409443U
Application number: CN201620989341.0U
Authority: CN
Inventors: 刘明清
Original assignee: Karaama Yasunari Technology Ltd
Current assignee: Karaama Yasunari Technology Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-08-15
Anticipated expiration: 2026-08-30

Abstract

The utility model provides a kind of vacuum generator, including housing and Venturi tube, Venturi tube is installed in the passage of enclosure interior, the first end of passage is provided with gas outlet, second end of passage is provided with magnetic valve installing port, it is provided with the first side of housing and the vacuum orifice of Venturi tube is connected vacuumizes hole, the first side of housing is further opened with the air admission hole connected with the internal face of magnetic valve installing port, air inlet of the valve rod of magnetic valve with Venturi tube in the case of cold is in sealing contact, the valve rod of magnetic valve outward movment in the case of energization causes air admission hole to be connected with the air inlet of Venturi tube.When the valve rod of electric magnetic valve and the air inlet of Venturi tube in sealing contact, so that vacuum generator does not work, when the valve rod outward movment of magnetic valve make it that air admission hole is connected with the air inlet of Venturi tube, vacuum generator works, and then vacuum generator of the present utility model is controlled conveniently by magnetic valve, realize automation.

Description

Vacuum generator

Technical field

The utility model is related to vacuum means for technical field, in particular to a kind of vacuum generator.

Background technology

In the toilet of train, typically by current flushing toilet bowl, the cleaning of urinal is realized, dirt is rushed in into dirt Case.But merely rely on current and be difficult to dirt all rushing in dirt box, generally also need to what is produced using vacuum generator Vacuum adsorption force so that dirt smoothly enters in dirt box.Vacuum generator typically produces " vacuum " using Venturi tube, works as pressure Contracting air enters from the entrance of Venturi tube, and inner section is gradually reduced, and the pressure increase of compressed air, flow velocity also becomes therewith Greatly, so that producing negative pressure at the stomata of small bore position, stomata surrounding air is caused to be inhaled into Venturi tube, with pressure Contracting air flows into the flow velocity of increase gas in diffusion chamber together, so that in the neighbouring generation " vacuum " of stomata.But prior art In vacuum generator be typically all to be controlled manually, be not easy to be automatically controlled by controller, it is difficult to realize automatic Change.

The content of the invention

Main purpose of the present utility model is to provide a kind of vacuum generator occur to solve vacuum of the prior art Device is not easy to automatically control problem.

To achieve these goals, the utility model provides a kind of vacuum generator, including housing and Venturi tube, text Venturi is installed in the passage of enclosure interior, and the first end of passage is provided with gas outlet, and the second end of passage is provided with electromagnetism The hole that vacuumizes connected with the vacuum orifice of Venturi tube, the first of housing are provided with valve installing port, the first side of housing Side is further opened with the air admission hole that connect with the internal face of magnetic valve installing port, the valve rod of magnetic valve in the case of cold and The air inlet of Venturi tube is in sealing contact, and the valve rod of the magnetic valve outward movment in the case of energization causes air admission hole and venturi The air inlet connection of pipe.

Further, the pressure tap being connected with air admission hole is offered in the second side of housing, pressure tap is supervised with pressure Measurement equipment is connected.

Further, vacuum generator also includes gas outlet coupling, vacuumizes hole coupling, air admission hole coupling and survey Press hole coupling, gas outlet coupling, vacuumize hole coupling, air admission hole coupling and pressure tap coupling respectively with outlet Mouthful, vacuumize hole, air admission hole and pressure tap threaded connection.

Further, the outside wall surface of one end of the remote housing of gas outlet coupling is provided with the dentation being engaged for flexible pipe It is raised.

Further, multiple mounting holes are provided with the second side of housing.

Further, Venturi tube includes the first pipe group and the second pipe group, and the first pipe group is installed in magnetic valve installing port In the passage of side, the internal diameter of the first pipe group is tapered into from the first end of housing toward the second end of housing, and the second pipe group is installed on In passage on the inside of gas outlet, the internal diameter of the second pipe group is less than or equal to the minimum diameter of the first pipe group, the first pipe group and first Pipe group is vacuumizing at hole docking and docking site is connected with vacuumizing hole.

Further, the first pipe group is connected with the outer wall of the second pipe group and the inner wall sealing of housing.

Further, the material of the first pipe group and the second pipe group is polyamide.

Using the technical solution of the utility model, by setting magnetic valve installing port at the second end of passage, the of housing Air admission hole on one side is connected with the internal face of magnetic valve installing port, when magnetic valve no power, valve rod and the text of magnetic valve The air inlet of venturi is in sealing contact, so that vacuum generator does not work, when solenoid valves, the valve rod of magnetic valve is past Outer motion causes air admission hole to be connected with the air inlet of Venturi tube, vacuum generator work, and then causes of the present utility model true Empty generator can be controlled conveniently by magnetic valve, can conveniently realize automation.Meanwhile, it is of the present utility model true Empty generator also have simple in construction, manufacturing cost it is low, it is practical the characteristics of.

Brief description of the drawings

The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 shows the structural representation of the first side of vacuum generator of the present utility model；

Fig. 2 shows Fig. 1 A-A profiles；

Fig. 3 shows the structural representation of the second side of vacuum generator of the present utility model；

Fig. 4 shows the structural representation of gas outlet coupling of the present utility model；

Fig. 5 shows the structural representation of the first pipe group of the present utility model；

Fig. 6 shows the structural representation of the second pipe group of the present utility model.

Wherein, above-mentioned accompanying drawing is marked including the following drawings：

10th, housing；11st, gas outlet；12nd, hole is vacuumized；13rd, magnetic valve installing port；14th, air admission hole；15th, pressure tap；16、 Mounting hole；20th, Venturi tube；21st, the first pipe group；22nd, the second pipe group；30th, gas outlet coupling；31st, detent projection.

Embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

In the utility model, in the case where not making opposite explanation, the noun of locality used such as " upper and lower, top, bottom " is generally Be for direction shown in the drawings, or for part in itself on vertical, vertical or gravity direction for；Together Sample, for ease of understanding and describing, " inside and outside " refers to the inside and outside of the profile relative to each part in itself, but the above-mentioned noun of locality is simultaneously It is not used in limitation the utility model.

It is not easy to automatically control problem to solve vacuum generator of the prior art, the utility model provides a kind of true Empty generator.

As shown in Figures 1 to 6, vacuum generator includes housing 10 and Venturi tube 20, and Venturi tube 20 is installed on housing In passage inside 10, the first end of passage is provided with gas outlet 11, and the second end of passage is provided with magnetic valve installing port 13, shell Be provided with the first side of body 10 connected with the vacuum orifice of Venturi tube 20 vacuumize hole 12, the first side of housing 10 Be further opened with the air admission hole 14 connected with the internal face of magnetic valve installing port 13, the valve rod of magnetic valve in the case of cold with The air inlet of Venturi tube 20 is in sealing contact, and the valve rod of the magnetic valve outward movment in the case of energization causes air admission hole 14 and text The air inlet connection of venturi 20.

By setting air admission hole and electromagnetism in magnetic valve installing port 13, the first side of housing 10 at the second end of passage The internal face connection of valve installing port 13, when magnetic valve no power, the valve rod of magnetic valve and the air inlet sealing of Venturi tube connect Touch so that vacuum generator does not work, when solenoid valves, the valve rod outward movment of magnetic valve cause air admission hole 14 with The air inlet connection of Venturi tube, vacuum generator work, and then enable vacuum generator of the present utility model easily It is controlled by magnetic valve, automation can be conveniently realized.

As shown in figure 3, offering the pressure tap 15 being connected with air admission hole 14, pressure tap 15 in the second side of housing 10 It is connected with pressure gauge, thus in use, the pressure value of air admission hole 14 can be monitored in real time by pressure gauge, in pressure mistake During big or insufficient pressure, take measures in time.

As shown in figure 4, vacuum generator also includes gas outlet coupling 30, vacuumizes hole coupling, air admission hole coupling With pressure tap coupling, gas outlet coupling 30, vacuumize hole coupling, air admission hole coupling and pressure tap coupling respectively with Gas outlet 11, vacuumize hole 12, air admission hole 14 and pressure tap 15 and be threadedly coupled, by gas outlet coupling 30, vacuumize outside hole Joint, air admission hole coupling and pressure tap coupling can conveniently realize vacuum generator of the present utility model and other equipment Connection, it is ensured that the reliability of connection.

As shown in figure 4, the outside wall surface of one end of the remote housing 10 of gas outlet coupling 30 is provided with for flexible pipe occlusion Detent projection 31.Because the outside wall surface of one end of the remote housing 10 of gas outlet coupling 30 is provided with what is be engaged for flexible pipe Detent projection 31, it is thus possible to improve fastness when gas outlet coupling 30 is connected with flexible pipe, prevent flexible pipe in gases at high pressure In the presence of fall off.

As shown in Figures 2 and 3, multiple mounting holes 16 are provided with the second side of housing 10, can by mounting hole 16 Easily carry out the fixation of vacuum generator of the present utility model, it is ensured that reliability during installation.

As shown in Figure 5 and Figure 6, Venturi tube 20 includes the first pipe group 21 and the second pipe group 22, and the first pipe group 21 is installed on In the passage of the inner side of magnetic valve installing port 13, the internal diameter of the first pipe group 21 from the first end of housing 10 toward the second end of housing 10 by Gradual change is small, and the second pipe group 22 is installed in the passage of the inner side of gas outlet 11, and the internal diameter of the second pipe group 22 is less than or equal to the first pipe The minimum diameter of group 21, the first pipe group 21 and the first pipe group 21 are docked and docking site is with vacuumizing hole 12 at hole 12 vacuumizing Connection.After gases at high pressure enter Venturi tube 20 from air admission hole 14, flowed from the first pipe group 21 to the second pipe group 22, by In the internal diameter of the first pipe group 21 is tapered into from the first end of housing 10 toward the second end of housing 10, and the second pipe group 22 is installed on In the passage of the inner side of gas outlet 11, the internal diameter of the second pipe group 22 is less than or equal to the minimum diameter of the first pipe group 21, thus air Flowing velocity is accelerated, according to the relation of gas flow rate and pressure so that the pressure for vacuumizing hole 12 is more than taking out for Venturi tube 20 Pressure at vacuum port so that vacuumize the air in hole 12 and flowed into the second pipe group 22, vacuumizes hole 12 and just produces necessarily Absorption affinity.Also, because Venturi tube 20 is made up of the first pipe group 21 and the second pipe group 22, thus from magnetic valve peace when installing Second pipe group 22 and the first pipe group 21 are pressed into the inside of housing 10 by dress mouth 13 successively, improve convenience when installing, drop Low installation difficulty.

Preferably, the first pipe group 21 is connected with the outer wall of the second pipe group 22 with the inner wall sealing of housing 10, so as to prevent gas Body is entered between the first pipe group 21 and the outer wall and housing 10 of the second pipe group 22, prevents gas leakage.

Preferably, the material of the first pipe group 21 and the second pipe group 22 is polyamide.Polyamide has good wearability, resistance to Hot, oil resistivity and chemical proofing, greatly reduce water absorption rate and shrinkage factor, with excellent dimensional stability and excellent Mechanical strength.

As can be seen from the above description, the utility model the above embodiments realize following technique effect：

1. by adding magnetic valve, it is easy to implement and automatically controls；

2. install simple and convenient.

It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.

It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using Data can exchange in the appropriate case, so as to presently filed embodiment described herein can with except herein diagram or Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product Or the intrinsic other steps of equipment or unit.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims

1. a kind of vacuum generator, it is characterised in that including：

Housing (10)；

Venturi tube (20), the Venturi tube (20) is installed in the internal passage of the housing (10), and the of the passage One end is provided with gas outlet (11), and the second end of the passage is provided with magnetic valve installing port (13), the of the housing (10) Be provided with one side connected with the vacuum orifice of the Venturi tube (20) vacuumize hole (12), the of the housing (10) One side is further opened with the air admission hole (14) connected with the internal face of the magnetic valve installing port (13), and the valve rod of magnetic valve is not Air inlet in the case of energization with the Venturi tube (20) is in sealing contact, and the valve rod of the magnetic valve is in the case of energization Outward movment causes the air admission hole (14) and the air inlet of the Venturi tube (20) to connect, the second side of the housing (10) The pressure tap (15) being connected with the air admission hole (14) is offered on face, the pressure tap (15) connects with pressure monitoring devices Connect.

2. vacuum generator according to claim 1, it is characterised in that it is external that the vacuum generator also includes gas outlet Head (30), vacuumize hole coupling, air admission hole coupling and pressure tap coupling, the gas outlet coupling (30), described take out Vacuum hole coupling, the air admission hole coupling and the pressure tap coupling respectively with the gas outlet (11), described take out true Emptying aperture (12), the air admission hole (14) and the pressure tap (15) threaded connection.

3. vacuum generator according to claim 2, it is characterised in that the gas outlet coupling (30) away from described The outside wall surface of one end of housing (10) is provided with the detent projection (31) being engaged for flexible pipe.

4. vacuum generator according to claim 1, it is characterised in that be provided with the second side of the housing (10) Multiple mounting holes (16).

5. vacuum generator according to claim 1, it is characterised in that the Venturi tube (20) includes：

First pipe group (21), the first pipe group (21) is installed in the passage on the inside of the magnetic valve installing port (13), The internal diameter of the first pipe group (21) is tapered into from the first end of the housing (10) toward the second end of the housing (10)；

Second pipe group (22), the second pipe group (22) is installed in the passage on the inside of the gas outlet (11), and described The internal diameter of two pipe groups (22) is less than or equal to the minimum diameter of the first pipe group (21), the first pipe group (21) and described the One pipe group (21) it is described vacuumize hole (12) place docking and docking site connected with the hole (12) that vacuumizes.

6. vacuum generator according to claim 5, it is characterised in that the first pipe group (21) and the second pipe group (22) outer wall is connected with the inner wall sealing of the housing (10).

7. vacuum generator according to claim 5, it is characterised in that the first pipe group (21) and the second pipe group (22) material is polyamide.