CN206631253U - A kind of provision for disengagement for liquid chromatogram syringe - Google Patents
A kind of provision for disengagement for liquid chromatogram syringe Download PDFInfo
- Publication number
- CN206631253U CN206631253U CN201720316057.1U CN201720316057U CN206631253U CN 206631253 U CN206631253 U CN 206631253U CN 201720316057 U CN201720316057 U CN 201720316057U CN 206631253 U CN206631253 U CN 206631253U
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- China
- Prior art keywords
- sleeve
- push rod
- syringe
- needle
- withdraw
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Abstract
It the utility model is related to a kind of provision for disengagement for liquid chromatogram syringe, sleeve including being arranged at syringe exterior, withdraw of the needle sleeve and sleeve barrel fixing device, the front end sleeve of withdraw of the needle sleeve is located at the outside of syringe needle, rear end is sheathed on the outside of injector cartridge, sleeve inner is provided with push rod, push rod bayonet socket is provided with push rod, withdraw of the needle sleeve bayonet socket is provided with withdraw of the needle sleeve, withdraw of the needle sleeve bayonet socket and push rod bayonet socket snapping, sleeve includes the cylindrical sleeve that hand end is pressed close to the half circular sleeve of needle stand side and close to syringe, sleeve barrel fixing device includes the first fixture and the second fixture with the first fixture snapping, first fixture is connected with cylindrical sleeve.Utilize provision for disengagement of the present utility model, it is possible to achieve the rapid dismounting of syringe needle, it is possibility to have effect avoid steel needle for experiment operator stab and because syringe needle fix tension when increase strength and caused by thumb pain.
Description
Technical field
The utility model belongs to physicism auxiliary Tools Technology, and in particular to one kind is used for liquid chromatogram and noted
The provision for disengagement of emitter.
Background technology
Liquid chromatography technology is widely applied to the scientific research and social production of numerous areas, such as：Pesticide is residual
Stay or antibiotics leftover detection (inspissated juice, milk), food fermentation (acetic acid vinegar, alcohol, lactic acid), Chinese herbal medicine effectively into
Go-on-go is surveyed, chemical products detect (washing chemical industry, cosmetics), PETROLEUM PROCESSING (petrochemical industry, petroleum geology), biochemical industry (fibre
Tie up ethanol, biodiesel, fiber butanol, microalgae ethanol, butanedioic acid, itaconic acid, anaerobic fermentation production biogas etc.), organic synthesis,
Environmental protection (poisonous and hazardous atmosphere pollution, the water quality detection of polluted-water and the detection of Pesticide Residue in Soil residual) etc..Section
Technical staff is learned when carrying out liquid chromatogram, it is necessary to which left hand holds pin, the right hand catches syringe to separate syringe needle with syringe.
When dismantling syringe needle, the sharp metallic syringe needle of syringe may scratch or puncture the finger of experimenter.
If syringe needle, in the tension of syringe needle cover for seat, right hand thumb can feel uncomfortable pain sense when dismantling syringe needle, it would be highly desirable to solve
The certainly problem.
Utility model content
The purpose of this utility model is to provide a kind of provision for disengagement for liquid chromatogram syringe, and it can omit use
Hand lays down the experimental procedure of syringe needle, greatly simplifies the operating procedure of syringe, and syringe is reused, drop
The use of plastics consumptive material in low liquid-phase assay.
In order to realize above-mentioned purpose of utility model, the technical solution of the utility model is as follows：
The purpose of this utility model is to provide a kind of provision for disengagement for liquid chromatogram syringe, including withdraw of the needle sleeve,
The sleeve and sleeve barrel fixing device of syringe exterior are arranged at, the front end sleeve of described withdraw of the needle sleeve is located at the outer of syringe needle
Portion, rear end are sheathed on the outside of injector cartridge, and described sleeve inner is provided with push rod, push rod is provided with described push rod
Bayonet socket, withdraw of the needle sleeve bayonet socket, described withdraw of the needle sleeve bayonet socket and push rod bayonet socket snapping are provided with described withdraw of the needle sleeve, it is described
Sleeve include pressing the cylindrical sleeve at hand end close to the half circular sleeve of needle stand side and close to syringe, described sleeve is fixed
Device includes the first fixture and the second fixture with the first described fixture snapping, the first described fixture and cylinder
Shape sleeve connection, described push rod are internally provided with sliding equipment, are provided with described sleeve and reset described sliding equipment
Baffle plate.
The utility model is interlocked by the withdraw of the needle sleeve bayonet socket of withdraw of the needle sleeve and the push rod bayonet socket on push rod, makes withdraw of the needle set
Cylinder is became one with push rod, and syringe needle is completed by the back-moving spring on the baffle plate and push rod of injector cartridge appearance relevant position
Shirk and the recovery of push rod position.
The utility model by push rod and withdraw of the needle sleeve by the sleeve set of provision for disengagement by the injector, then passing through card
Button is acted on forming one, then by the sleeve barrel fixing device on sleeve, provision for disengagement is fixed on the injector；By in push rod
Promote withdraw of the needle sleeve quickly to lay down the syringe needle on syringe needle headstock by external force is applied on hand, pass through the reset response of back-moving spring
So that push rod is returned to original position by hand, the fast quick-detach of syringe needle is realized.
It is preferred that the first described fixture and sleeve are integrally formed.First fixture connects with cylindrical sleeve, and first is solid
Determine part and sleeve is integrally formed, it is not necessary to re-assembly again in actual use, save unnecessary step.
It is preferred that the first described fixture surface is provided with several Baltimore grooves, the second described fixture surface is set
There are several projections, described Baltimore groove and the close snapping of projection.Sleeve barrel fixing device includes the first fixture and consolidated with first
Determine the second fixture of part connection, sleeve barrel fixing device is the concave-convex type buckling device that can tear conjunction open, and the first fixture surface is
The Baltimore groove to cave in, the second fixture surface are projections, after the first fixture and the second fixture snapping, the first fixture and
Among two fixtures vacant space being fastened syringe side by hand, the syringe needle is fixed by sleeve barrel fixing device
Provision for disengagement so that the provision for disengagement will not produce rotation on the injector, and be readily disassembled.
It is preferred that being provided with the push rod slideway for sliding described sliding equipment in described sleeve, described push rod is set
In in the cotter way of push rod slideway.Push rod slideway is noted by setting cotter way to wale the simultaneously effective anti-throw-out lever edge that slides up and down of push rod
The inside and outside of emitter radial direction rocks.
It is preferred that described sliding equipment include being arranged on described push rod back-moving spring deck, be arranged at it is described
Back-moving spring on back-moving spring deck and the back-moving spring neck for being arranged at described back-moving spring both sides.Back-moving spring neck
And back-moving spring deck ensure that spring upper end is fixed and lower end can move up and down, and eliminate the possible vertical cylinder of push rod
The radially inner and outer of axle is rocked.
It is preferred that it is provided with described push rod for promoting the push rod that described push rod slides by hand.
It is preferred that described sleeve, push rod slideway, the material of push rod and withdraw of the needle sleeve are polypropylene material.Sleeve, pusher slide
Road, push rod and withdraw of the needle sleeve are all made up of rigid plastics, and the material selected in the utility model is polypropylene.
The utility model be used for liquid chromatogram syringe provision for disengagement workflow be：The cylindrical part of sleeve is under
Syringe is inserted on and, the second fixture of sleeve barrel fixing device of dismantling, syringe graduation line baseline side is put by hand is tight
In the hollow space of sleeve barrel fixing device, the first fixture of sleeve barrel fixing device and the second fixture are then passed through into corresponding positions
The Baltimore groove and projection put are fastened.After the sleeve of fixed provision for disengagement, push rod is put into push rod slideway, then by the withdraw of the needle
The push rod relevant position of the sleeve of sleeve press-in provision for disengagement, is fastened by push rod bayonet socket and withdraw of the needle sleeve bayonet socket.
After provision for disengagement assembles, the syringe needle used in syringe or pipette tips can be put on syringe needle, pressed
The push rod of push rod presses hand, and push rod is moved down by hand-motion withdraw of the needle sleeve, squeezes syringe needle on run-bake-needle fault seat, and successive elimination push rod by being applied on hand
The external force added, in the presence of back-moving spring and back-moving spring baffle plate, push rod and withdraw of the needle sleeve return to original position.
The beneficial effects of the utility model are：
(1) by promoting withdraw of the needle sleeve quickly to lay down the syringe needle on syringe needle headstock by application external force on hand in push rod,
Original position is returned to by hand by the reset response push rod of back-moving spring, the quick of syringe needle is realized and tears open
Unload；
(2) provision for disengagement of the present utility model is utilized, it is possible to achieve the rapid dismounting of syringe needle, it is possibility to have effect is kept away
Exempt from steel needle for experiment operator stab and because syringe needle fix tension when increase strength and caused by thumb pain.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of provision for disengagement middle sleeve for liquid chromatogram syringe of the utility model；
Fig. 2 is the schematic diagram of push rod in a kind of provision for disengagement for liquid chromatogram syringe of the utility model；
Fig. 3 is the schematic diagram of withdraw of the needle sleeve in a kind of provision for disengagement for liquid chromatogram syringe of the utility model；
Fig. 4 is the schematic diagram of the first fixture in a kind of provision for disengagement for liquid chromatogram syringe of the utility model；
Fig. 5 is the schematic diagram of the second fixture in a kind of provision for disengagement for liquid chromatogram syringe of the utility model；
Reference：1st, sleeve；2nd, push rod；3rd, push rod slideway；4th, withdraw of the needle sleeve；5th, sleeve barrel fixing device；6th, first is solid
Determine part；7th, the second fixture；8th, Baltimore groove；9th, convex is followed closely；10th, back-moving spring；11st, back-moving spring neck；12nd, push rod presses hand；
13rd, back-moving spring deck；14th, push rod bayonet socket；15th, withdraw of the needle sleeve bayonet socket；16th, baffle plate；17th, raised square.
Embodiment
With reference to instantiation, the utility model is furtherd elucidate.It should be understood that these embodiments are merely to illustrate this
Utility model, rather than limit the scope of protection of the utility model.Technical staff is according to the utility model in actual applications
The modifications and adaptations made, still fall within the scope of protection of the utility model.
Embodiment 1：
As shown in Fig. 1~5, a kind of provision for disengagement for liquid chromatogram syringe, including withdraw of the needle sleeve 4, it is arranged at note
Sleeve 1 and sleeve barrel fixing device 5 outside emitter, the front end sleeve of withdraw of the needle sleeve 4 are located at the outside of syringe needle, and rear end is arranged
In the outside of injector cartridge, sleeve 1 is internally provided with push rod 2, and push rod bayonet socket 14 is provided with push rod 2, is set on withdraw of the needle sleeve 4
Withdraw of the needle sleeve bayonet socket 15, withdraw of the needle sleeve bayonet socket 15 and the snapping of push rod bayonet socket 14 are equipped with, sleeve 1 includes the semicircle close to needle stand side
Sleeve and press the cylindrical sleeve at hand end close to syringe, sleeve barrel fixing device 5 include the first fixture 6 and with the first fixture
Second fixture 7 of 6 snappings, the first fixture 6 are connected with cylindrical sleeve, and push rod 2 is internally provided with sliding equipment, sleeve 1
On be provided with reset sliding equipment baffle plate 16.
First fixture 6 is connected with cylindrical sleeve, and the connected mode of the first fixture 6 and cylindrical sleeve can be according to reality
Border situation selects suitable connected mode, and the first fixture 6 and sleeve 1 are integrally formed in the present embodiment, it is not necessary to are actually made
Re-assemblied again in, save unnecessary step.
The surface of first fixture 6 is provided with several Baltimore grooves 8, and the surface of the second fixture 7 is provided with several projections, recessed
Shape groove 8 and projection snapping.Baltimore groove 8 is equal with the number of projection, and the number of Baltimore groove 8 and projection can be according to actual provision for disengagement
The factor such as size determine.In the present embodiment, preferably projection is convex nail 9, and Baltimore groove 8 and convex nail 9 snap together
The first fixture 6 and the second fixture 7 can be made preferably to connect.Sleeve barrel fixing device 5 includes the first fixture 6 and with first
The second fixture 7 that fixture 6 connects, sleeve barrel fixing device 5 are the concave-convex type buckling devices that can tear conjunction open, the first fixture 6
Surface is the Baltimore groove 8 to cave in, and the surface of the second fixture 7 is projection, after the first fixture 6 and the snapping of the second fixture 7, first
The inside that the fixture 7 of fixture 6 and second fastens is hollow-core construction, and the form and dimension of its hollow-core construction and syringe press hand
Be in close contact, among the first fixture 6 and the second fixture 7 vacant space being fastened syringe side by hand,
The syringe needle provision for disengagement is fixed by sleeve barrel fixing device 5 so that the provision for disengagement will not produce rotation on the injector, and easily
In dismounting.
The utility model is interlocked by the withdraw of the needle sleeve bayonet socket 15 of withdraw of the needle sleeve 4 with the push rod bayonet socket 14 on push rod 2, is made
Withdraw of the needle sleeve 4 becames one with push rod 2, passes through the back-moving spring 10 on the baffle plate 16 and push rod 2 of injector cartridge relevant position
Come complete syringe needle shirk and the recovery of push rod position.
Raised square 17 is provided with withdraw of the needle sleeve 4, wedge-shaped support is provided by the raised square 17 set on withdraw of the needle sleeve 4
Power, during to make withdraw of the needle sleeve 4 install on the injector, raised square 17 and syringe wall contacts, make withdraw of the needle set on axial direction
Cylinder 4 is not inside and outside to be rocked.
The utility model is by the way that 1 set of the sleeve of provision for disengagement on the injector, is then led to push rod 2 and withdraw of the needle sleeve 4
Cross snap effect and form one, then by the sleeve barrel fixing device 5 on sleeve 1, provision for disengagement is fixed on the injector；Pass through
Promote withdraw of the needle sleeve 4 quickly to lay down the syringe needle on syringe needle headstock by application external force on hand 12 in push rod, pass through back-moving spring
10 reset response causes push rod to be returned to original position by hand 12, realizes the fast quick-detach of syringe needle.
Sliding equipment include be arranged on push rod 2 back-moving spring deck 13, be arranged at answering on back-moving spring deck 13
Position spring 10 and the back-moving spring neck 11 for being arranged at the both sides of back-moving spring 10.Back-moving spring neck 11 and back-moving spring deck 13
It ensure that spring upper end to fix and lower end can move up and down, and eliminate the radially inner and outer of the possible vertical drum shaft of push rod 2
Rock.
The push rod slideway 3 for sliding sliding equipment is provided with sleeve 1, push rod 2 is arranged in the cotter way of push rod slideway 3.
Push rod slideway 3 by set cotter way wale push rod slide up and down and effectively inside and outside rolling of the anti-throw-out lever along syringe radial direction
It is dynamic.It is provided with push rod 2 for promoting the push rod that push rod 2 slides by hand 12.
Sleeve 1, push rod slideway 3, the material of push rod 2 and withdraw of the needle sleeve 4 are polypropylene material.Cylinder 1, the push rod of syringe
Slideway 3, push rod 2 and withdraw of the needle sleeve 4 are all made up of rigid plastics, and preferred material is polypropylene in the present embodiment.
The utility model be used for liquid chromatogram syringe provision for disengagement workflow be：The cylindrical part of sleeve 1 by
Syringe is inserted on down, the second fixture 7 of sleeve barrel fixing device 5 of dismantling, makes syringe graduation line baseline side tight by hand
The hollow space for being placed in sleeve barrel fixing device 5, then the first fixture 6 of sleeve barrel fixing device 5 and the second fixture 7 are led to
The Baltimore groove 8 and convex nail 9 for crossing relevant position are fastened.After the sleeve 1 of fixed provision for disengagement, push rod 2 is put into pusher slide
In road 3, then withdraw of the needle sleeve 4 is pressed into the relevant position of push rod 2 of sleeve 1, pass through push rod bayonet socket 14 and withdraw of the needle sleeve bayonet socket 15
Fastened.
After provision for disengagement assembles, the syringe needle used in syringe or pipette tips can be put on syringe needle, pressed
The push rod of push rod 2 presses hand 12, and push rod drives withdraw of the needle sleeve 4 to move down by hand 12, squeezes syringe needle on run-bake-needle fault seat, and successive elimination push rod presses hand
The external force applied on 12, in the presence of back-moving spring 10 and baffle plate 16, push rod 2 and withdraw of the needle sleeve 4 return to original position
Put, i.e. the work of the removal syringe needle of syringe has been completed, and the workflow is recyclable to be carried out.
Detailed Jie has been carried out to a kind of provision for disengagement for liquid chromatogram syringe provided by the utility model above
Continue, the explanation of above example is only intended to help and understands method and its core concept of the present utility model, it is noted that for
For those skilled in the art, on the premise of the utility model principle is not departed from, the utility model can also be entered
Some improvement of row and modification, these are improved and modification is also fallen into the protection domain of the utility model claims.
Claims (7)
- A kind of 1. provision for disengagement for liquid chromatogram syringe, it is characterised in that：Including withdraw of the needle sleeve, it is arranged at syringe cylinder Sleeve and sleeve barrel fixing device outside body, the front end sleeve of described withdraw of the needle sleeve are located at the outside of syringe needle, rear end set Located at the outside of injector cartridge, described sleeve inner is provided with push rod, and push rod bayonet socket is provided with described push rod, described Withdraw of the needle sleeve on be provided with withdraw of the needle sleeve bayonet socket, described withdraw of the needle sleeve bayonet socket and push rod bayonet socket snapping, described sleeve bag The cylindrical sleeve close to the half circular sleeve of needle stand side and close to syringe by hand end is included, described sleeve barrel fixing device includes First fixture and the second fixture with the first described fixture snapping, the first described fixture connect with cylindrical sleeve Connect, described push rod is internally provided with sliding equipment, and the baffle plate for resetting described sliding equipment is provided with described sleeve.
- 2. the provision for disengagement according to claim 1 for liquid chromatogram syringe, it is characterised in that：Described first is solid Determine part and sleeve is integrally formed.
- 3. the provision for disengagement according to claim 1 or 2 for liquid chromatogram syringe, it is characterised in that：Described One fixture surface is provided with several Baltimore grooves, and the second described fixture surface is provided with several projections, and described is recessed Shape groove and projection snapping.
- 4. the provision for disengagement according to claim 1 or 2 for liquid chromatogram syringe, it is characterised in that：Described set The push rod slideway for sliding described sliding equipment is provided with cylinder, described push rod is arranged in the cotter way of push rod slideway.
- 5. the provision for disengagement according to claim 1 or 2 for liquid chromatogram syringe, it is characterised in that：Described cunning Motivation structure includes the back-moving spring deck being arranged on described push rod, the reset bullet being arranged on described back-moving spring deck Spring and the back-moving spring neck for being arranged at described back-moving spring both sides.
- 6. the provision for disengagement according to claim 1 or 2 for liquid chromatogram syringe, it is characterised in that：Described pushes away It is provided with bar for promoting the push rod that described push rod slides by hand.
- 7. the provision for disengagement according to claim 1 or 2 for liquid chromatogram syringe, it is characterised in that：Described set The material of cylinder, push rod slideway, push rod and withdraw of the needle sleeve is polypropylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720316057.1U CN206631253U (en) | 2017-03-28 | 2017-03-28 | A kind of provision for disengagement for liquid chromatogram syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720316057.1U CN206631253U (en) | 2017-03-28 | 2017-03-28 | A kind of provision for disengagement for liquid chromatogram syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206631253U true CN206631253U (en) | 2017-11-14 |
Family
ID=60258804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720316057.1U Expired - Fee Related CN206631253U (en) | 2017-03-28 | 2017-03-28 | A kind of provision for disengagement for liquid chromatogram syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206631253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272528A (en) * | 2018-02-26 | 2018-07-13 | 李鲲鹏 | A kind of animal immune injection external member |
-
2017
- 2017-03-28 CN CN201720316057.1U patent/CN206631253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272528A (en) * | 2018-02-26 | 2018-07-13 | 李鲲鹏 | A kind of animal immune injection external member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |