CN206386316U - Vacuum generator - Google Patents
Vacuum generator Download PDFInfo
- Publication number
- CN206386316U CN206386316U CN201621389551.2U CN201621389551U CN206386316U CN 206386316 U CN206386316 U CN 206386316U CN 201621389551 U CN201621389551 U CN 201621389551U CN 206386316 U CN206386316 U CN 206386316U
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- nozzle
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- vacuum
- vacuum generator
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Abstract
The utility model discloses a kind of vacuum generator, injection assembly including main part and on main part, the injection assembly includes package shell and the nozzle inside package shell, nozzle pipeline is provided with the nozzle, the nozzle loads package shell from package shell one end, and can not be passed through by position limiting structure from the other end, the injection assembly is provided with an ejecting structure, nozzle can be ejected package shell by the ejecting structure in the case of nozzle is not stressed, the vacuum generator can change nozzle, while it is convenient to change nozzle mode.
Description
Technical field
The utility model is related to a kind of vacuum generator, more particularly to a kind of vacuum generator of replaceable nozzle.
Background technology
Vacuum generator is exactly to produce a kind of new of negative pressure using malleation source of the gas, efficiently, cleaning, and economical, small-sized is true
Empty component, this causes in the place for having compressed air, or needs the place of positive/negative-pressure to obtain simultaneously in a pneumatic system
Negative pressure becomes very easily and conveniently.It is mechanical that vacuum generator is widely used in industrial automation, and electronics is packed, and is printed, modeling
The field such as material and robot.In different field, the vacuum that required vacuum generator is produced all be it is different, it is unmatched
Vacuum generator is if applied in production practices, the vacuum often produced can not reach desired effect.In the case of serious,
Excessive vacuum can damage production and set.
Authorization Notice No. discloses a kind of vacuum generator for CN203604279U utility model.Described vacuum occurs
Device includes main part and the nozzle part being contained in theme portion.Jet pipe, outlet pipe and vacuum pipe are provided with main part,
Jet pipe is located at one end of main part, and outlet pipe is located at the other end of main part, connected with jet pipe and in same axle
On line, vacuum pipe, jet pipe and the T-shaped structure of outlet pipe.Nozzle part is contained in the jet pipe, jet pipe and
Helicitic texture is respectively equipped with nozzle part, to adjust position of the nozzle part in jet pipe, so as to adjust vacuum pipe generation
Vacuum.But the position of nozzle part is constantly adjusted by rotating helicitic texture, meeting damaged screw is to the close of vacuum generator
Envelope property causes to damage and shortened the service life of vacuum generator.Simultaneously by adjusting position of the nozzle part in jet pipe
Put, less, and it is air jet pipe to influence the principal element of vacuum on vacuum pipe to the vacuum amplitude of accommodation on vacuum pipe
The structure of gas pressure intensity and nozzle on road.
Utility model content
The purpose of this utility model is to provide a kind of vacuum generator, and the vacuum generator can be adjusted by changing nozzle
Vacuum in whole vacuum pipe.
To solve the above problems, the utility model provides a kind of vacuum generator, including main part and installed in main part
On injection assembly, jet pipe, outlet pipe and vacuum pipe are provided with the main part, the jet pipe is located at main body
Portion one end, the outlet pipe is located at the main part other end, and the jet pipe and outlet pipe are located on same axis, institute
Vacuum pipe, jet pipe and the T-shaped structure of outlet pipe are stated, the injection assembly is connected to by helicitic texture and main part
Jet pipe, the other end and tracheae are connected through a screw thread, and the injection assembly includes package shell and and in package shell
Nozzle pipeline is provided with the nozzle in portion, the nozzle, the nozzle loads package shell from package shell one end, and passes through first
Position limiting structure can not pass through from the other end, and the injection assembly is provided with an ejecting structure, and the ejecting structure can be in nozzle
Nozzle is ejected into package shell in the case of not being stressed.
By using above-mentioned technical proposal, in use, injection assembly to be connected to the jet of main part by helicitic texture
On pipeline, then tracheae is connected to the other end of injection assembly, when being now passed through gases at high pressure into injection assembly, vacuum occurs
Device is started working, and the gas in vacuum pipe is extracted to form vacuum environment.When vacuum generator is applied to other working environments
When, it is necessary to change other Nozzle structures, then only need to separate tracheae by helicitic texture and injection assembly, now elastic construction
Nozzle is ejected into package shell, the nozzle for needing to change is installed in package shell afterwards, then tracheae is passed through into helicitic texture
Nozzle is compressed and injection assembly one end is fixed on.By way of changing nozzle, the amplitude for adjusting vacuum is bigger, and this
Dismounting mode is planted, it is simple in construction, it is easy to operate.
As further improvement of the utility model, the position limiting structure is that the package shell is provided with stepped hole, described
Stepped hole includes round platform hole and the cylindrical hole communicated with round platform hole heavy in section, and the maximum diameter of hole of the round platform hole is less than cylindrical hole
Aperture, the nozzle is that one end is set and the round platform that is adapted of round platform hole.
By using above-mentioned technical proposal, position limiting structure of the present utility model is simple in construction, easy for installation.
As further improvement of the utility model, the ejecting structure is the spring in cylindrical hole, the spring
Be set on the outside of nozzle, the annular terrace with edge that one end of remote the round platform of the nozzle is provided with and spring offsets, the spring oneself
By the height for being highly longer than cylindrical hole.
By using above-mentioned technical proposal, spring structure is simple, easy for installation, when nozzle by annular terrace with edge by spring pressure
Contracting, while tracheae is compressed nozzle by helicitic texture.When needing to take out nozzle, then tracheae is removed, now spring can be by
Nozzle is ejected, and makes installation and replacing nozzle simpler.
As further improvement of the utility model, the one end of the injection assembly away from main part sets spacing terrace with edge,
When injection assembly and main part are connected, spacing terrace with edge is against main part side wall, and the spacing terrace with edge is six regular prism shapes.
By using above-mentioned technical proposal, the setting of spacing terrace with edge makes injection assembly will not excessively to tighten, so as to spiral shell
Line causes damage, influences the air-tightness of vacuum generator.Spacing terrace with edge is six regular prism shapes simultaneously, and convenient use instrument is by nozzle
Component is tightened.
As further improvement of the utility model, the main part sets a measurement pipeline, the measurement pipeline and vacuum
Pipeline on the same axis and is communicated, and pressure gauge is set on the measurement pipeline, and the pressure vacuum gauge and measurement pipeline pass through
Helicitic texture is connected.
By using above-mentioned technical proposal, the vacuum of measurement pipeline can be measured by pressure vacuum gauge, because measurement
Pipeline and vacuum pipe are communicated, therefore measure the vacuum of vacuum pipe indirectly, can by observing the vacuum of vacuum pipe
It is monitored with the working condition to vacuum generator.As further improvement of the utility model, the outlet pipe is from gas
Body flow direction is divided into entrance, mixing section and diffuser, and the entrance is tapering type pipeline, and the mixing section is circle
Column jecket road, the diffuser is gradual-enlargement type pipeline.
By using above-mentioned technical proposal, outlet pipe is arranged to 3 segmentations, can effectively prevent the energy in gas from damaging
Lose.Enter outlet pipe after the gas mixing extracted out in gases at high pressure and vacuum tube.Wherein entrance is tapering type pipeline, can
To increase the pressure of mixed gas.Mixing section is tube bundle, can make the gas mixing extracted out in gases at high pressure and vacuum tube
Completely.Diffuser is gradual-enlargement type pipeline, can reduce the pressure of mixed gas, cuts down the loss of gas internal energy amount.
As further improvement of the utility model, the length of the mixing section is 6~10 times of mixing section aperture.
By using above-mentioned technical proposal, long mixing section can make mixed gas and pipe friction off-energy, too short
Mixing section mixed gas mixing can be made incomplete, therefore length of mixing is that 6~10 times of mixing section aperture are optimal.
As further improvement of the utility model, the nozzle is tapering type nozzle.
By using above-mentioned technical proposal, tapering type nozzle is simple to manufacture, convenient for production, and will not be produced higher true
Reciprocal of duty cycle causes to damage to equipment.
As further improvement of the utility model, the nozzle pipeline set in the nozzle is Venturi tube.
By using above-mentioned technical proposal, the changes of section rule of Venturi tube meets the change in fluid stream section itself
Rule, therefore higher vacuum can be produced using the nozzle of Venturi tube, while the energy loss to gases at high pressure reaches
To minimum.
As main part described in further improvement of the utility model, two tapped through holes, the tapped through hole and master are set
Body portion internal pipeline is not interfered.
By using above-mentioned technical proposal, the design of screwed hole facilitates the installation of vacuum generator.
In summary, the utility model has the advantages that：
1st, nozzle is arranged in package shell by position limiting structure, ejects nozzle provided with ejecting structure in package shell,
Above-mentioned set-up mode simplifies the operation for changing nozzle, while making the connection between injection assembly and main part without damaging, no
Influence the sealing of vacuum generator；
2nd, position limiting structure is that round platform hole and round platform coordinate, and ejecting structure is the cooperation of annular terrace with edge and spring, package shell
It is upper that spacing six regular prisms terrace with edge is set, two tapped through holes are not provided with theme, said structure is simple in construction, easy for installation；
3rd, gas outlet is divided into entrance, mixing section and diffuser, and wherein length of mixing is the 6~10 of mixing section aperture
Times, above-mentioned setting weakens the energy loss of mixed gas；
4th, nozzle is divided into tapering type nozzle and the nozzle with Venturi tube, makes vacuum with above-mentioned Nozzle structure
Device is adapted to more working environments.
Brief description of the drawings
Fig. 1 is the structural representation of vacuum generator；
The structural representation of Fig. 2 main parts；
Fig. 3 is the structural representation of injection assembly；
Fig. 4 is the structural representation of package shell；
Fig. 5 is the first example structure schematic diagram of nozzle；
Fig. 6 is second of example structure schematic diagram of nozzle.
In figure：1st, main part；11st, jet pipe；12nd, outlet pipe；121st, entrance；122nd, mixing section；123rd, spread
Section；124th, linkage section；13rd, vacuum pipe；14th, pipeline is measured；15th, tapped through hole；16th, vacuum chamber；2nd, injection assembly；21st, group
Part shell；211st, stepped hole；2111st, round platform hole；2112nd, cylindrical hole；2113rd, through hole；2114th, step surface；212nd, spacing terrace with edge；
22nd, nozzle；221st, nozzle pipeline；2211st, nozzle entrance；2212nd, nozzle contraction section；2213rd, nozzle venturi；2214th, nozzle
Diffuser；222nd, round platform；223rd, annular terrace with edge；224th, cylinder boss；23rd, spring；24th, sealing ring；3rd, pressure vacuum gauge.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, vacuum generator includes main part 1 and the injection assembly 2 on main part 1, wherein
Provided with jet pipe 11, outlet pipe 12, vacuum pipe 13 and measurement pipeline 14 in main part 1, wherein jet pipe 11 is located at
The one end of main part 1, the outlet pipe 12 is located at the other end of main part 1, and the jet pipe 11 and outlet pipe 12 are located at same
On one axis, jet pipe 11, outlet pipe 12, vacuum pipe 13 and measurement pipeline 14 are in cross distribution, wherein 4 pipelines
Cross position setting vacuum chamber 16.The one end of injection assembly 2 is connected in the jet pipe 11 of main part by helicitic texture.Vacuum
Pressure gauge 3 is connected in measurement pipeline 14 by helicitic texture and main part 1.
12 points of outlet pipe is 4 sections, and entrance 121, mixing section 122, diffuser 123 are divided into from gas flow direction
With linkage section 124, in the present embodiment, entrance 121 is tapering type pipeline, and mixing section 122 is tube bundle, mixing section 122
Duct length is 6~10 times of the aperture of mixing section 122, and diffuser 123 is gradual-enlargement type pipeline, and the angle of flare of diffuser 123 is 6 °
~8 °, linkage section 124 is cylindrical pipe, and the aperture of linkage section 124 is much larger than the maximum diameter of hole of diffuser 123, while linkage section
124 madial walls set the internal thread 1241 for being used for connecting with tracheae.
It is additionally provided with the main part 1 of vacuum generator inside two tapped through holes 15, the tapped through hole 15 and main part 1
Pipeline is not interfered.By tapped through hole 15, vacuum generator can be arranged in baric systerm, helicitic texture is simple in construction,
It is easy for installation.
As shown in Figure 3, Figure 4, injection assembly 2 includes package shell 21, nozzle 22, spring 23 and sealing ring 24.Outside component
Shell 21 is provided with stepped hole 211, and stepped hole 211 includes round platform hole 2111 and the side larger with the aperture of round platform hole 2111 is communicated
Cylindrical hole 2112, the maximum diameter of hole of round platform hole 2111 is less than the aperture of cylindrical hole 2112.Wherein the aperture of round platform hole 2111 compared with
Small side sets through hole 2113, and the aperture of through hole 2113 is identical with the minimum-value aperture of round platform hole 2111, and package shell 21 is remote
One end of through hole 2113 sets spacing terrace with edge 212, wherein spacing terrace with edge 212 is six regular prism shapes.Package shell 21 is remote simultaneously
From the helicitic texture set on the madial wall of one end of through hole 2113 for being connected with tracheae.
Nozzle 22 is cylinder pipe fitting, the round platform 222 that the one end of nozzle 22 is provided with and round platform hole 2111 is adapted, the round platform
222 less one end of outer diameter sets cylinder boss 224, and the other end of round platform 222 sets the cylinder body of nozzle 22, circle
The madial wall of the lateral wall of post boss 224 and through hole 2113 is inconsistent.Nozzle 22 is setting annular away from the one end of cylinder boss 224
Terrace with edge 223, the lateral wall of annular terrace with edge 223 and the madial wall of cylindrical hole 2112 are abutted against.
The sheathed spring 23 on nozzle 22, one end of spring 23 is withstood on the annular terrace with edge 223 of nozzle, and the other end is against step
On the step surface 2114 in hole 211.The free height of spring 23 is longer than the height of cylindrical hole 2112.
Sealing ring 24, the external diameter and circle of sealing ring 24 are set on the end face of the remote cylinder boss 224 of nozzle 22 simultaneously
The external diameter of post holes 2112 is adapted.
Fig. 5 is the first embodiment of nozzle 22, and nozzle pipeline 221 is Venturi tube, and nozzle is followed successively by from air inlet order
Entrance 2211, nozzle contraction section 2212, nozzle venturi 2213 and nozzle diffuser 2214, wherein nozzle entrance 2211 are short
Cylindrical tube, nozzle contraction section 2212 be a conical converging, cone angle is about 24 ° ± 2 °, nozzle venturi 2213 be short cylinder
Pipe, nozzle anemostat 2214 is the Taper Pipe of 8 °~15 ° of cone angle.The changes of section rule of Venturi tube meets fluid stream and cut in itself
The changing rule in face, therefore higher vacuum can be produced using the nozzle of Venturi tube, while to the energy of gases at high pressure
Amount loss reaches minimum.
Fig. 6 is second of embodiment of nozzle 22, and this kind of nozzle 22 is tapering type nozzle, and this nozzle 22 is simple to manufacture,
It is convenient for production, and will not produce higher vacuum to equipment cause damage.The higher structure to vacuum generator of vacuum
Intensity requirement is bigger, when internal vacuum is too high, and the pressure inside vacuum generator between air is excessive, outside atmosphere
Great pressure is produced to the side wall of vacuum generator, the outer surface of vacuum generator is likely to occur crackle, influences vacuum
The service life of device.
When routine is using vacuum generator, gases at high pressure are passed through from the nozzle 2 of injection assembly 2, logical through nozzle pipeline 221
Enter vacuum chamber 16, because the flow velocity of gases at high pressure is big, the gas of vacuum pipe 13 and measurement pipeline 14 is inhaled into gases at high pressure
Mixing, mixed gas is discharged to vacuum generator by discharge duct 12.It neutralizes the pressure vacuum gauge 3 of the connection of measurement pipe road 14
Measure the vacuum of vacuum pipe 13.
When needing to work in other working environments, then change nozzle to adjust vacuum, the need for adapting to working environment.
First, it is only necessary to separate tracheae by helicitic texture and injection assembly 2, now nozzle 22 is ejected package shell by spring 23
21, the nozzle 22 for afterwards changing needs is installed in package shell 21, then tracheae is fixed by helicitic texture, now tracheae
Nozzle 22 is compressed.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (10)
1. a kind of vacuum generator, including main part (1) and the injection assembly (2) on main part (1), the main part
(1) jet pipe (11), outlet pipe (12) and vacuum pipe (13) are provided with, the jet pipe (11) is located at main part
(1) one end, the outlet pipe (12) is located at main part (1) other end, and the injection assembly (2) is installed on main part (1)
Jet pipe (11), it is characterised in that：The injection assembly (2) includes package shell (21) and internal located at package shell (21)
Nozzle (22), nozzle pipeline (221) is provided with the nozzle (22), the nozzle (22) loads from package shell (21) one end
Package shell (21), and can not be passed through by position limiting structure from the other end, the injection assembly (2) is provided with an ejecting structure,
Nozzle (22) is ejected package shell (21) by the ejecting structure in the case of can not being stressed in nozzle (22).
2. vacuum generator according to claim 1, it is characterised in that：The position limiting structure is to be arranged on package shell
(21) stepped hole (211), the stepped hole (211) include round platform hole (2111) and with round platform hole (2111) heavy in section
The cylindrical hole (2112) communicated, the maximum diameter of hole of the round platform hole (2111) is less than the aperture of cylindrical hole (2112), the nozzle
(22) round platform (222) that one end is set and round platform hole (2111) is adapted.
3. vacuum generator according to claim 2, it is characterised in that：The ejecting structure is located at cylindrical hole (2112)
In spring (23), the spring (23) is set on the outside of nozzle (22), the remote round platform of the nozzle (22)
(222) the annular terrace with edge (223) that one end is provided with and spring (23) offsets, the free height of the spring (23) is longer than circle
The height of post holes (2112).
4. vacuum generator according to claim 1, it is characterised in that：The package shell (21) is away from main part
(1) one end sets spacing terrace with edge (212), when package shell (21) and main part (1) mating connection, spacing terrace with edge (212)
Main part (1) side wall is against, the spacing terrace with edge (212) is six regular prism shapes.
5. vacuum generator according to claim 1, it is characterised in that：The main part (1) sets a measurement pipeline
(14) it is, described to measure pipeline (14) and vacuum pipe (13) on the same axis and communicate, on the measurement pipeline (14)
Pressure vacuum gauge (3) is set, and the pressure vacuum gauge (3) and measurement pipeline (14) are connected by helicitic texture.
6. vacuum generator according to claim 1, it is characterised in that：The outlet pipe (12) is from gas flow direction
Entrance (121), mixing section (122) and diffuser (123) are divided into, the entrance (121) is tapering type pipeline, described
Mixing section (122) is tube bundle, and the diffuser (123) is gradual-enlargement type pipeline.
7. vacuum generator according to claim 6, it is characterised in that：The length of the mixing section (122) is mixing section
(122) 6~10 times of aperture.
8. vacuum generator according to claim 3, it is characterised in that：The nozzle (22) is tapering type nozzle.
9. vacuum generator according to claim 3, it is characterised in that：The nozzle pipeline set in the nozzle (22)
(221) it is Venturi tube.
10. vacuum generator according to claim 1, it is characterised in that：The main part (1) sets two tapped through holes
(15), the tapped through hole (15) and main part internal pipeline are not interfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389551.2U CN206386316U (en) | 2016-12-16 | 2016-12-16 | Vacuum generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389551.2U CN206386316U (en) | 2016-12-16 | 2016-12-16 | Vacuum generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386316U true CN206386316U (en) | 2017-08-08 |
Family
ID=59489249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389551.2U Active CN206386316U (en) | 2016-12-16 | 2016-12-16 | Vacuum generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386316U (en) |
-
2016
- 2016-12-16 CN CN201621389551.2U patent/CN206386316U/en active Active
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