CN109353559A - A kind of fluid injector - Google Patents
A kind of fluid injector Download PDFInfo
- Publication number
- CN109353559A CN109353559A CN201811271221.7A CN201811271221A CN109353559A CN 109353559 A CN109353559 A CN 109353559A CN 201811271221 A CN201811271221 A CN 201811271221A CN 109353559 A CN109353559 A CN 109353559A
- Authority
- CN
- China
- Prior art keywords
- fluid
- body cavity
- piston
- injection port
- valve chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B3/10—Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material
- B65B3/12—Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material mechanically, e.g. by pistons or pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/22—Defoaming liquids in connection with filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
Abstract
The invention discloses a kind of fluid injectors, inject field, including valve body for fluid, valve body has valve chamber；Piston is located in valve chamber, and valve chamber is divided into first-class body cavity and second body cavity, and piston can move back and forth under the action of fluid along valve chamber in first-class body cavity and/or second body cavity；First fluid interface, is connected with first-class body cavity；Second fluid interface is connected with second body cavity；Injection port is connected with second body cavity；Sealed piece can link with piston, to open or close the injection port.Technical solution of the present invention can be done directly injection in high vacuum conditions, and the influence for stopping vacuum environment to inject fluid avoids pipeline from generating bubble, guarantee injection precision.
Description
Technical field
The present invention injects field for fluid, more particularly to a kind of fluid injector.
Background technique
In battery, change in the process of producing product such as shape product, food, electronic product, biological reagent, fluid is needed in vacuum item
It is dispensed under part.Injecting fluid needs to be arranged more set switching mechanisms under vacuum condition at present, and process is complicated, and injection precision is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of fluid injectors, can be done directly note in high vacuum conditions
It penetrates, the influence for stopping vacuum environment to inject fluid avoids pipeline from generating bubble, guarantees injection precision.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fluid injector, including
Valve body, valve body have valve chamber；
Piston is located in valve chamber, and valve chamber is divided into first-class body cavity and second body cavity, and piston can be first-class
It is moved back and forth under the action of fluid along valve chamber in body cavity and/or second body cavity；
First fluid interface, is connected with first-class body cavity；
Second fluid interface is connected with second body cavity；
Injection port is connected with second body cavity；
Sealed piece can link with piston, to open or close the injection port.
It is further used as the improvement of technical solution of the present invention, and the sealed piece includes the thimble being located on the inside of injection port.
It is further used as the improvement of technical solution of the present invention, further includes needle tubing, the proximal end nozzle and second body cavity of needle tubing
Conducting, the far-end mouths of needle tubing are equipped with injection nozzle, and injection nozzle is equipped with injection port, and the piston is connect with thimble by connecting rod
Realize linkage.
It is further used as the improvement of technical solution of the present invention, and injection nozzle has first conical surface to close up on the inside of injection port,
The thimble distal end is equipped with the top needle core tip in insertion injection port and can be with second conical surface of the first cone match.
It is further used as the improvement of technical solution of the present invention, and the connecting rod is threadedly coupled with thimble, and thimble has guiding
Block, the proximal end of the guide pad resists connecting rod, the side surface of guide pad and needle tubing or the inner surface of injection nozzle cooperates, with guidance
Thimble moves back and forth, and guide pad is equipped with the runner passed through for fluid.
It is further used as the improvement of technical solution of the present invention, opens up connecting hole on the outside of second body cavity on the valve body,
The needle tubing is securedly mounted on valve body proximally by the locking member being mounted in connecting hole, between the locking member and valve body and
Sealing ring is equipped between locking member and needle tubing.
It is further used as the improvement of technical solution of the present invention, and the valve chamber, piston, connecting rod, needle tubing, thimble and nozzle are same
Axis setting.
It is further used as the improvement of technical solution of the present invention, is equipped in first-class body cavity and/or second body cavity and piston
The reset spring of cooperation.
It is further used as the improvement of technical solution of the present invention, and first fluid interface is equipped with first fluid connector.
It is further used as the improvement of technical solution of the present invention, and second fluid interface is equipped with second fluid connector.
Beneficial effects of the present invention: when using the technical program injecting fluid, before injection, by first fluid interface to the
One fluid cavity is filled with fluid, pushes piston, and injection port is closed in sealed piece and piston linkage, when injection, passes through second fluid interface
It is filled with fluid to second body cavity, pushes piston, injection port is opened in sealed piece and piston linkage, and fluid is flowed out through injection port.This
The technical solution of invention can be done directly injection in high vacuum conditions, and the influence for stopping vacuum environment to inject fluid is kept away
Exempt from pipeline and generate bubble, guarantees injection precision.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is structure axonometric drawing of the embodiment of the present invention；
Fig. 2 is schematic diagram of internal structure of the embodiment of the present invention.
Specific embodiment
This part will be described in specific embodiments of the present invention, and the preferred embodiments of the invention is shown in the accompanying drawings, attached
The effect of figure be with figure remark additionally book word segment description, enable a person to intuitively, visually understand of the invention
Each technical characteristic and overall technical architecture, but it should not be understood as limiting the scope of the invention.
It is with structure shown in Fig. 2 for ginseng when if there is being described to direction (upper and lower, left and right, before and after) in the present invention
Description is examined, but it is merely for convenience of description technical solution of the present invention, rather than the technical characteristic of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention, " several " are meant that one or more, " being greater than ", " small the meaning of " plurality " is two or more
In ", " being more than " etc. be interpreted as not including this number；" more than ", " following ", " within " etc. be interpreted as including this number.Of the invention
In description, if there is being described to " first ", " second " be only used for for the purpose of distinguishing technical characteristic, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic or implicitly indicate indicated technical characteristic
Precedence relationship.
In the present invention, unless otherwise restricted clearly, the words such as " setting ", " installation ", " connection " be shall be understood in a broad sense, example
Such as, it can be directly connected, it can also be indirectly connected through an intermediary；It may be a fixed connection, be also possible to detachably connect
It connects, can also be integrated molding；It can be mechanical connection, be also possible to be electrically connected or can communicate with each other；It can be two members
The interaction relationship of connection or two elements inside part.Skilled artisan can be with the tool of combination technology scheme
Hold in vivo and rationally determines the concrete meaning of above-mentioned word in the present invention.
Referring to Fig. 1, Fig. 2, the present invention provides a kind of fluid injectors, including
Valve body 1, valve body 1 have valve chamber；
Piston 2, is located in valve chamber, and valve chamber is divided into first-class body cavity 11 and second body cavity 12, and piston 2 can be
It is moved back and forth under the action of fluid along valve chamber in first-class body cavity 11 and/or second body cavity 12；
First fluid interface 13 is directly or indirectly connected with first-class body cavity 11；
Second fluid interface 14 is directly or indirectly connected with second body cavity 12；
Injection port 31 is directly or indirectly connected with second body cavity 12；
Sealed piece can link with piston 2, and to open or close the injection port 31, piston 2 and sealed piece be can be used directly
Realization linkage is connect or is indirectly connected with, indirect connections can be, but not limited to connector connection, transmission mechanism connection, hydraulic or gas
Pressure transmission connection etc..
When using the technical program injecting fluid, before injection, it is filled with by first fluid interface 13 to first-class body cavity 11
Fluid, fluid can be used but are not limited to liquid, gas, push piston 2, and sealed piece and the linkage of piston 2 are closed injection port 31, avoided
Vacuum directly acts on pipeline and metering pump, prevents bubble and cavitation generates；When injection, first fluid interface 13 is disconnected,
It is filled with fluid to second body cavity 12 by second fluid interface 14, pushes piston 2, injection is opened in sealed piece and the linkage of piston 2
Mouth 31, fluid is flowed out through injection port 31.Technical solution of the present invention can be done directly injection in high vacuum conditions, stop true
The influence that Altitude injects fluid avoids pipeline from generating bubble, guarantees injection precision.
In certain embodiments, the outside of injection port 31 is arranged in sealed piece, before injection, by first fluid interface 13 to
First-class body cavity 11 is filled with fluid, and fluid can be used but be not limited to liquid, gas, and piston 2 is pushed to move to valve chamber proximal end, seals
Part and piston 2 link, and sealed piece closes injection port 31 from outside, avoid vacuum from directly acting on pipeline and metering pump, prevent gas
Bubble and cavitation generate；When injection, first fluid interface 13 is disconnected, and is filled by second fluid interface 14 to second body cavity 12
Enter fluid, pushes piston 2 to link to valve chamber distal movement, sealed piece and piston 2, open injection port 31, fluid is through injection port 31
Outflow.
Referring to fig. 2, in certain embodiments, the sealed piece includes the thimble 4 for being located at 31 inside of injection port.Before injection,
It is filled with fluid to first-class body cavity 11 by first fluid interface 13, fluid can be used but be not limited to liquid, gas, push piston
2 link to valve chamber distal movement, sealed piece and piston 2, and sealed piece closes injection port 31 from inside, and vacuum is avoided to directly act on
Pipeline and metering pump, prevent bubble and cavitation generates；When injection, first fluid interface 13 is disconnected, and is connect by second fluid
Mouth 14 is filled with fluid to second body cavity 12, and piston 2 is pushed to move to valve chamber proximal end, and sealed piece and piston 2 link, and opens and injects
Mouth 31, fluid is flowed out through injection port 31.
It in certain embodiments, further include needle tubing 5, needle tubing 5 can be rigid pipe or flexible pipe, the proximal end nozzle of needle tubing 5
It is connected with second body cavity 12, the far-end mouths of needle tubing 5 are equipped with injection nozzle 3, and injection nozzle 3 is equipped with injection port 31, passes through needle tubing 5
Injection port 31 can be extended to distal end, the piston 2 connect realization linkage by connecting rod 6 with thimble 4.
In certain embodiments, injection nozzle 3 has first conical surface 32 to close up on the inside of injection port 31, and the thimble 4 is remote
End be equipped with insertion injection port 31 in top needle core tip 41 and can with first conical surface 32 cooperate second conical surface 42, thimble 4 with
Injection nozzle 3 uses cone match, guarantees the accuracy and leakproofness of 4 closed injection mouth 31 of thimble, avoids before the injection, vacuum is straight
It connects and acts on pipeline and metering pump, prevent bubble and cavitation generates.
Connecting rod the modes such as can be used welding with thimble 4, snap connection and connecting, in certain embodiments, 6 distal end of connecting rod
Equipped with screw hole, thimble 4 is equipped with screw head, and the connecting rod 6 is threadedly coupled with thimble 4, and thimble 4 has guide pad 43, described to lead
Connecting rod is resisted to the proximal end of block 43, limit, the side surface of guide pad 43 and needle tubing 5 is formed or the inner surface of injection nozzle 3 cooperates,
To guide thimble 4 to move back and forth, guide pad 43 is equipped with the runner passed through for fluid, to guarantee to be entered by second fluid interface 14
Fluid injection port 31 can be flow to by runner.
Needle tubing 5 and 1 direct or indirect connection of valve body, in certain embodiments, on the valve body 1 outside second body cavity 12
Side opens up connecting hole, and the needle tubing 5 is securedly mounted on valve body 1 proximally by the locking member 7 being mounted in connecting hole, the lock
It is equipped with sealing ring 8 between tight part 7 and valve body 1 and between locking member 7 and needle tubing 5, guarantees leakproofness, vacuum is avoided to directly act on
Pipeline and metering pump, prevent bubble and cavitation generates.
Valve chamber, piston 2, connecting rod 6, needle tubing 5, thimble 4 and nozzle can coaxial or non-coaxial setting, preferably, institute
Valve chamber, piston 2, connecting rod 6, needle tubing 5, thimble 4 and nozzle coaxial arrangement are stated, to guarantee that it is smooth that piston 2 and thimble 4 link
Property, accuracy and stability.
In certain embodiments, the reset bullet cooperated with piston 2 is equipped in first-class body cavity 11 and/or second body cavity 12
Spring.For reset spring 9 is arranged in first-class body cavity 11, when injection, first fluid interface 13 is disconnected, and is connect by second fluid
Mouth 14 is filled with fluid to second body cavity 12, when Fluid pressure is greater than spring pressure, piston 2 is pushed to move to valve chamber proximal end,
Sealed piece and piston 2 link, and open injection port 31, and fluid is flowed out through injection port 31.
In addition, connecting for convenience, first fluid connector 15 is equipped at first fluid interface 13.At second fluid interface 14
Equipped with second fluid connector 16.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (10)
1. a kind of fluid injector, it is characterised in that: including
Valve body, valve body have valve chamber；
Piston is located in valve chamber, and valve chamber is divided into first-class body cavity and second body cavity, and piston can be in first-class body cavity
And/or it is moved back and forth under the action of fluid along valve chamber in second body cavity；
First fluid interface, is connected with first-class body cavity；
Second fluid interface is connected with second body cavity；
Injection port is connected with second body cavity；
Sealed piece can link with piston, to open or close the injection port.
2. fluid injector according to claim 1, it is characterised in that: the sealed piece includes being located on the inside of injection port
Thimble.
3. fluid injector according to claim 2, it is characterised in that: further include needle tubing, the proximal end nozzle of needle tubing with
The conducting of second body cavity, the far-end mouths of needle tubing are equipped with injection nozzle, and injection nozzle is equipped with injection port, and the piston passes through with thimble
Linkage is realized in connecting rod connection.
4. fluid injector according to claim 3, it is characterised in that: injection nozzle has closing on the inside of injection port
First conical surface, the thimble distal end are equipped with the top needle core tip in insertion injection port and can be with the second cones of the first cone match
Face.
5. fluid injector according to claim 4, it is characterised in that: the connecting rod is threadedly coupled with thimble, top
Needle set has guide pad, and the proximal end of the guide pad resists connecting rod, the inner surface of the side surface of guide pad and needle tubing or injection nozzle
Cooperation, to guide thimble to move back and forth, guide pad is equipped with the runner passed through for fluid.
6. fluid injector according to claim 3, it is characterised in that: opened on the outside of second body cavity on the valve body
If connecting hole, the needle tubing is securedly mounted on valve body proximally by the locking member being mounted in connecting hole, the locking member with
Sealing ring is equipped between valve body and between locking member and needle tubing.
7. fluid injector according to claim 6, it is characterised in that: the valve chamber, piston, connecting rod, needle tubing, top
Needle and nozzle coaxial arrangement.
8. fluid injector according to claim 1, it is characterised in that: in first-class body cavity and/or second body cavity
Equipped with the reset spring cooperated with piston.
9. fluid injector according to claim 1, it is characterised in that: first fluid interface connects equipped with first fluid
Head.
10. fluid injector according to claim 1, it is characterised in that: second fluid interface is equipped with second fluid
Connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271221.7A CN109353559A (en) | 2018-10-29 | 2018-10-29 | A kind of fluid injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271221.7A CN109353559A (en) | 2018-10-29 | 2018-10-29 | A kind of fluid injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109353559A true CN109353559A (en) | 2019-02-19 |
Family
ID=65347202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271221.7A Pending CN109353559A (en) | 2018-10-29 | 2018-10-29 | A kind of fluid injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109353559A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570899A (en) * | 1984-11-19 | 1986-02-18 | Household Manufacturing, Inc. | Adjustable slow closing valve assembly |
| US5975163A (en) * | 1997-07-18 | 1999-11-02 | Techpack S.R.L. | Bag filling valve for viscous fluids |
| CN202988686U (en) * | 2012-10-23 | 2013-06-12 | 张立锋 | Canned material discharging device capable of blocking leakage and preventing dripping automatically |
| CN203214973U (en) * | 2013-05-08 | 2013-09-25 | 广东恒基金属制品实业有限公司 | Improved filling valve |
| CN204284461U (en) * | 2014-11-24 | 2015-04-22 | 深圳市嘉美斯机电科技有限公司 | Be applied to the back suction type high-speed breaking fluid control valve on hot melt adhesive glue rifle |
| CN205270038U (en) * | 2016-01-08 | 2016-06-01 | 威海世椿自动化设备有限公司 | Glue dispensing valve |
| CN105715815A (en) * | 2015-05-01 | 2016-06-29 | 余姚市云松增压恒温科技有限公司 | Jet valve core used for bathroom valve |
-
2018
- 2018-10-29 CN CN201811271221.7A patent/CN109353559A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570899A (en) * | 1984-11-19 | 1986-02-18 | Household Manufacturing, Inc. | Adjustable slow closing valve assembly |
| US5975163A (en) * | 1997-07-18 | 1999-11-02 | Techpack S.R.L. | Bag filling valve for viscous fluids |
| CN202988686U (en) * | 2012-10-23 | 2013-06-12 | 张立锋 | Canned material discharging device capable of blocking leakage and preventing dripping automatically |
| CN203214973U (en) * | 2013-05-08 | 2013-09-25 | 广东恒基金属制品实业有限公司 | Improved filling valve |
| CN204284461U (en) * | 2014-11-24 | 2015-04-22 | 深圳市嘉美斯机电科技有限公司 | Be applied to the back suction type high-speed breaking fluid control valve on hot melt adhesive glue rifle |
| CN105715815A (en) * | 2015-05-01 | 2016-06-29 | 余姚市云松增压恒温科技有限公司 | Jet valve core used for bathroom valve |
| CN205270038U (en) * | 2016-01-08 | 2016-06-01 | 威海世椿自动化设备有限公司 | Glue dispensing valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |