CN212301589U - External solvent device for automatic sample feeder - Google Patents
External solvent device for automatic sample feeder Download PDFInfo
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- CN212301589U CN212301589U CN202020694230.3U CN202020694230U CN212301589U CN 212301589 U CN212301589 U CN 212301589U CN 202020694230 U CN202020694230 U CN 202020694230U CN 212301589 U CN212301589 U CN 212301589U
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Abstract
The utility model discloses an external solvent device for an automatic sample feeder, the solvent bottle body in be provided with solvent passageway axially, still include solvent bottle lid, sealed pad and solvent pipe, the solvent bottle lid be provided with the first through-hole that supplies the sampling needle to pass through, solvent bottle lid detachable sets up the upper portion at the solvent bottle body, sealed pad set up between solvent bottle lid and solvent bottle body; the upper end of the solvent pipe is communicated with the lower end of the solvent channel, and the lower end of the solvent pipe is used for being connected with a solvent bottle with large capacity. The utility model discloses a to current solvent bottle improve, make it possess the function to syringe needle guide and sealed extraction, the solvent bottle intercommunication of solvent pipe and external large capacity is passed through to the bottom simultaneously to can realize the connection of the external solvent of current full-automatic sample injector, satisfy that the syringe needle of general appearance washs or standard solution dilutes and the required a large amount of solvents of constant volume, improve current automatic sample injector washing liquid volume, the practicality is strong, application scope is big.
Description
Technical Field
The utility model relates to an autoinjector technical field especially relates to an external solvent device for autoinjector.
Background
At present, the needle washing solvent and the constant volume solvent of the turret type full-automatic sample injection system mostly use solvent bottles with the volume of 4-20 ml on the solvent bottle position in a sample injector, while a solvent bottle with the volume of 4-20 ml can meet certain requirements when a small-volume sample injection needle is cleaned, the large-volume sample injection is increased along with the market requirements, when a large-volume injection needle is cleaned or a standard solution is diluted and fixed in volume, the solvent amount of the existing solvent bottle with the volume of 4-20 ml is insufficient, so that the automatic sample injector stops working due to the fact that the solvent can not be sucked, and simultaneously, the size of the working position of the solvent bottle of the automatic sample injector is determined and can not be changed, if a large solvent bottle is directly used, the solvent bottle cannot be fixedly placed in a solvent bottle working position for direct use, so that the method of directly replacing the large-capacity solvent bottle cannot solve the problems.
The automatic sample injector with the large solvent bottle position also exists in the market, but the cost for directly purchasing a new automatic sample injection system with the large solvent bottle position is high, so that how to clean the large-volume sample injection needle by the automatic sample injection system with the small solvent bottle position is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an external solvent device for autoinjector can install on the solvent bottle position of current autoinjector for be connected with the external solvent of full autoinjector, thereby satisfy that the syringe washs or standard solution dilutes and the required a large amount of solvents of constant volume roughly, improve the autoinjector washing liquid volume.
The utility model adopts the technical proposal that:
an external solvent device for an automatic sample feeder comprises a solvent bottle body, a solvent channel is axially arranged in the solvent bottle body, the external solvent device also comprises a solvent bottle cap, a sealing gasket and a solvent tube, the solvent bottle cap is provided with a first through hole for a sample injection needle to pass through, the solvent bottle cap is detachably arranged at the upper part of the solvent bottle body, and the sealing gasket is arranged between the solvent bottle cap and the solvent bottle body; the upper end of solvent pipe and the lower extreme intercommunication of solvent passageway, and the two sealed settings, the lower extreme of solvent pipe is used for connecting the solvent bottle of large capacity.
The solvent channel comprises a first channel and a second channel which are arranged up and down, the diameter of the first channel is larger than that of the second channel, and a conical connecting part is arranged between the first channel and the second channel.
The device also comprises a sealing component used for sealing the upper end of the solvent pipe and the lower end of the solvent channel.
The sealing assembly comprises a screw with a second through hole in the axial direction, an extension lug is arranged at the upper end of the solvent pipe in an extending mode along the circumference and the axial vertical direction, an axial screw hole communicated with the solvent channel is formed in the lower portion of the solvent bottle body, the screw is arranged in a matched mode with the axial screw hole, the solvent pipe penetrates through the second through hole, and the upper end of the solvent pipe and the lower end of the solvent channel are arranged in a sealing mode through the extension lug in a pressing mode through the screw.
The bottom of the solvent bottle is also provided with a groove, and the diameter of the groove is larger than that of the screw.
The outer diameter of the extension lug is not larger than that of the screw.
The screw is a plastic hexagonal flat head screw, so that the operation is convenient, and the sealing performance after installation is further improved.
The solvent pipe is a plastic solvent pipe.
The solvent bottle cap is a circular metal bottle cap.
The sealing gasket is a circular rubber gasket and comprises an upper layer structure and a lower layer structure, wherein the upper layer is a soft sealing layer, and the lower layer is a compact hard sealing layer.
The utility model discloses a to current solvent bottle improve, make it possess the function to syringe needle guide and sealed extraction, the solvent bottle intercommunication of solvent pipe and external large capacity is passed through to the bottom simultaneously to can realize the connection of the external solvent of current full-automatic sample injector, satisfy that the syringe needle of general appearance washs or standard solution dilutes and the required a large amount of solvents of constant volume, improve current automatic sample injector washing liquid volume, the practicality is strong and the scope that is suitable for is big.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, the utility model comprises a solvent bottle body 3, a solvent channel is axially arranged in the solvent bottle body 3, and an external thread is arranged on the outer circumference of the upper part of the solvent bottle body 3; solvent passageway including the first passageway 6 and the second passageway 8 that set up from top to bottom, the diameter of first passageway 6 be greater than the diameter of second passageway 8, and still be provided with conical connecting portion 7 between first passageway 6 and the second passageway 8, can make the solvent passageway form a cavity through the little setting up about the solvent passageway is big-end-up, the cavity can form the region of a buffer memory to sample liquid, thereby the syringe draws and can not all be direct through the remote extraction of external solvent bottle at every turn, thereby improve extraction efficiency, reduce the resistance of pipeline between solvent pipe and the solvent bottle. Solvent bottle body for race steel plastics or other organic solvent resistant workable plastics, the upper portion bottleneck has the external screw thread to match with the internal thread of 1 inner wall of bottle lid, the structure of solvent passageway has constituted the guide module of syringe needle, because the upper end opening is great, the lower part is for than the slightly wide through-hole of syringe needle external diameter, forms the taper hole between the upper and lower part, makes the syringe needle metal core can follow in the taper hole slides in the guide hole. The solvent bottle body 3 is made of stainless steel plastic or other easily-processed plastic resistant to organic solvents, and the processing cost is low.
The solvent bottle comprises a solvent bottle cap 1, a sealing gasket 2 and a solvent pipe 5, wherein a first through hole 10 is formed in the middle of the solvent bottle cap 1, and an internal thread matched with an external thread arranged on the outer circumference of the upper part of a solvent bottle body 3 is arranged on the inner wall of the solvent bottle cap and is detachably arranged; the sealing gasket 2 is arranged between the solvent bottle cap 1 and the solvent bottle body 3;
the upper end of the solvent pipe 5 is communicated with the lower end of the second channel 8, the upper end and the lower end of the second channel are arranged in a sealing mode, and the lower end of the solvent pipe 5 is used for being connected with a solvent bottle with large capacity.
The utility model discloses a body of current solvent bottle improves the design, makes the solvent bottle body can match the solvent bottle station of current injector to need not to carry out relocation and calibration to the washing of injector washing needle, simultaneously through setting up guide module, when making the injector wash, the syringe needle can directly enter into this device and carry out the absorption of solvent; simultaneously, the device bottom that sets up at the integral seal communicates with external solvent bottle through setting up solvent pipe 5, thereby can directly extract the solvent in the external solvent bottle during the syringe needle extraction, because external solvent bottle does not receive the injecing of solvent bottle work position, its size can set up as required, thereby realized the cleaning work of autoinjector to bulky injection needle, during the use, this device of direct mount is to solvent work position, then can work solvent pipe and external solvent connection, and the back that finishes, conveniently demolish and change other solvent bottles.
Further, in order to ensure the tightness of the device, a sealing assembly for sealing the solvent pipe 5 and the lower end of the second channel 8 is further included. In practical application, the solvent pipe and the cleaning tank can be sealed and fixed in an adhesion mode, but in practical use, the solvent pipe is used for extracting liquid by means of negative pressure during working, so that the adhesion mode is unstable, air leakage is easy to generate, and the actual cleaning process is influenced.
In practical application, the capacity of the external solvent bottle is limited, so that the external solvent bottle can be conveniently replaced, the sealing assembly is a detachable sealing assembly, the detachable sealing assembly comprises a screw 4 with a second through hole in the axial direction, the upper end of the solvent pipe 5 extends in the direction perpendicular to the axis along the circumference and is provided with an extending lug, a screw hole communicated with a solvent channel is formed in the end face of the bottom of the solvent bottle body 3, the screw 4 is detachably arranged on the lower end face of the solvent bottle body 3 through being matched with the screw hole, the solvent pipe 5 penetrates through the second through hole and is tightly pressed by the screw 4 to enable the upper end of the solvent pipe 5 to be hermetically arranged with the lower end of the second channel 8. The utility model discloses in have the solvent pipe that extends the ear also common turn-ups in the practical application take plastic solvent pipe to it is as external solvent passageway, with the solvent from external solvent bottle leading-in this solvent device in, the turn-ups also extends the ear and combines closely to cooperate with solvent bottle lower part and crew cut plastic screw upper portion three, thereby can effectually prevent that the solvent from leaking, keeps the bottle internal pressure.
The bottom of the solvent bottle body 3 is also provided with a groove 9, and the diameter of the groove 9 is larger than that of the screw 4, so that the screw 4 can be conveniently disassembled and assembled by using tools.
The outer diameter of the extension ear is not smaller than the diameter of the second channel 8 and not larger than the outer diameter of the screw 4. Set up like this and can guarantee that the three can effectively seal when the tight fit, thereby avoided extending the ear external diameter undersize or too big influence sealing performance.
The screw is a hexagonal flat-head plastic screw, a cylindrical flat-head opening is formed in the upper edge of the bottom of the screw, and a thread is arranged in the cylindrical flat-head opening and matched with the thread of the hexagonal flat-head plastic screw. The lower edge of the bottom is provided with a larger cylindrical opening, so that the hexagonal flat-head plastic screw is easy to lock tightly. The flat-head plastic screw is flat, the upper part of the flat-head plastic screw is provided with an external thread which is matched with the internal thread of a cylindrical flat-head open hole on the upper edge of the bottom of the solvent bottle body, the middle part of the flat-head plastic screw is provided with a second through hole which is matched with the external diameter of the plastic solvent pipe with the flanging, and the lower part of the flat-head plastic screw is provided with.
When the six-edge flat-head plastic screw is used, the six-edge flat-head plastic screw is stronger in skid resistance than a metal screw and can be operated manually, tools are often used for metal, and the sealing performance is greatly reduced due to the fact that one end of the metal screw is smooth, so that the use is influenced.
The solvent pipe is a plastic solvent pipe, and the plastic solvent pipe can well prevent corrosion and resist organic solvents, so that the service cycle is greatly prolonged.
The solvent bottle cap is a circular metal bottle cap, the middle of the solvent bottle cap is provided with a hole, the inner lower part of the cap is provided with an internal thread, the stress of the metal bottle cap is larger, the sealing gasket can be tightly pressed, the air leakage of the solvent in the bottle body is prevented, and the pressure in the bottle is kept. The sealing gasket is a circular rubber gasket and comprises an upper layer structure and a lower layer structure, wherein the upper layer is a soft sealing layer, and the lower layer is a compact hard sealing layer. The upper surface is a softer sealing layer, so that a sample injection needle can penetrate through the bottle gasket easily, the lower layer is a compact hard sealing layer, the bottle opening is easy to seal, and the thickness of the sealing pad is 3-5 mm.
The utility model discloses when using, can the direct mount on current autosampler station, then the other end setting through the solvent pipe is at the bottom of the bottle of external solvent bottle, the extraction of solvent can directly be carried out to the syringe needle during use, and the single admission valve through setting up on the external solvent bottle keeps the pressure balance of external solvent bottle constantly, liquid uses up to finishing in the external solvent bottle, carry out the change of external solvent bottle, can directly pass through the puller screw when changing external solvent bottle, change solvent pipe and external solvent bottle simultaneously, and is convenient and fast not only, and convenient clean.
In the description of the present invention, it is to be noted that, for the orientation words, there are terms such as "center", "lateral", "longitudinal", and the like
The terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used to designate an orientation or positional relationship that is based on the orientation or positional relationship shown in the drawings for purposes of descriptive convenience and simplicity of description, and are not intended to indicate or imply that the device or element so designated must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the specific scope of the invention.
It is noted that the terms "first", "second", and the like in the description and claims of the present application are used for
Similar objects are distinguished and not necessarily used to describe a particular order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an autoinjector is with external solvent device, includes solvent bottle body, its characterized in that: the solvent bottle comprises a solvent bottle body, a solvent channel, a solvent bottle cap, a sealing gasket and a solvent tube, wherein the solvent bottle cap is axially provided with a first through hole for a sample injection needle to pass through, the solvent bottle cap is detachably arranged at the upper part of the solvent bottle body, and the sealing gasket is arranged between the solvent bottle cap and the solvent bottle body; the upper end of solvent pipe and the lower extreme intercommunication of solvent passageway, and the two sealed settings, the lower extreme of solvent pipe is used for connecting the solvent bottle of large capacity.
2. The external solvent device for the automatic sample feeder according to claim 1, wherein: the solvent channel comprises a first channel and a second channel which are arranged up and down, the diameter of the first channel is larger than that of the second channel, and a conical connecting part is arranged between the first channel and the second channel.
3. The external solvent device for the automatic sample feeder according to claim 1, wherein: the device also comprises a sealing component used for sealing the upper end of the solvent pipe and the lower end of the solvent channel.
4. An external solvent device for an automatic sample feeder according to claim 3, wherein: the sealing assembly comprises a screw with a second through hole in the axial direction, an extension lug is arranged at the upper end of the solvent pipe in an extending mode along the circumference and the axial vertical direction, an axial screw hole communicated with the solvent channel is formed in the lower portion of the solvent bottle body, the screw is arranged in a matched mode with the axial screw hole, the solvent pipe penetrates through the second through hole, and the upper end of the solvent pipe and the lower end of the solvent channel are arranged in a sealing mode through the extension lug in a pressing mode through the screw.
5. The external solvent device for the automatic sample feeder according to claim 4, wherein: the bottom of the solvent bottle is also provided with a groove, and the diameter of the groove is larger than that of the screw.
6. The external solvent device for the automatic sample feeder according to claim 5, wherein: the outer diameter of the extension lug is not larger than that of the screw.
7. The external solvent device for the automatic sample feeder according to claim 6, wherein: the screw is a plastic hexagonal flat head screw, so that the operation is convenient, and the sealing performance after installation is further improved.
8. An external solvent device for an automatic sample feeder according to any one of claims 1 to 7, wherein: the solvent pipe is a plastic solvent pipe.
9. The external solvent device for the automatic sample feeder according to claim 8, wherein: the solvent bottle cap is a circular metal bottle cap.
10. The external solvent device for the automatic sample feeder according to claim 9, wherein: the sealing gasket is a circular rubber gasket and comprises an upper layer structure and a lower layer structure, wherein the upper layer is a soft sealing layer, and the lower layer is a compact hard sealing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020694230.3U CN212301589U (en) | 2020-04-30 | 2020-04-30 | External solvent device for automatic sample feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020694230.3U CN212301589U (en) | 2020-04-30 | 2020-04-30 | External solvent device for automatic sample feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212301589U true CN212301589U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020694230.3U Active CN212301589U (en) | 2020-04-30 | 2020-04-30 | External solvent device for automatic sample feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212301589U (en) |
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2020
- 2020-04-30 CN CN202020694230.3U patent/CN212301589U/en active Active
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