CN216419453U - Gun head device capable of increasing air inflow - Google Patents
Gun head device capable of increasing air inflow Download PDFInfo
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- CN216419453U CN216419453U CN202123025965.0U CN202123025965U CN216419453U CN 216419453 U CN216419453 U CN 216419453U CN 202123025965 U CN202123025965 U CN 202123025965U CN 216419453 U CN216419453 U CN 216419453U
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- tip
- air inflow
- air
- cooperation
- inflow
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Abstract
The utility model discloses a can increase rifle head device of air inflow, include: the tip is used for absorbing the liquid, is used for the cooperation portion of being connected with the application of sample ware cooperation and is used for connecting the filter house of tip and cooperation portion, and the tip presents the elongated form, and the inner peripheral portion of tip is the application of sample inner chamber that the axial is link up, and the peripheral part symmetry of tip is equipped with two at least bellyings, and the bellyings is used for supporting out the space channel of the air inflow of being convenient for tip. Through using the utility model provides a can increase the rifle head device of air inflow, can effectively improve the rifle head and move liquid precision in airtight space.
Description
Technical Field
The utility model relates to an external diagnosis technical field, more specifically says, relates to a can increase rifle head device of air inflow.
Background
In the prior art, a gun head is usually a filter element suction head with a slender tip, and liquid needing to be moved is completely located at the tip, so that precise sample adding can be realized. When the pipette tip is pricked into a cavity with good sealing performance to suck a reagent, the sealing cover has excellent contractibility, so that the outer surface of the pipette tip is wrapped too tightly to block the air from flowing in, and the pipetting precision of the pipette tip in the closed space is inaccurate.
In summary, how to effectively improve the pipetting accuracy of the pipette tip in the closed space is a problem to be urgently solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a gun head device capable of increasing air inflow, which can effectively improve the liquid transfer accuracy of the gun head in the airtight space.
In order to achieve the above object, the present invention provides the following technical solutions:
a lance tip apparatus for increasing air inflow, comprising: the tip that is used for absorbing liquid, be used for the cooperation portion of being connected with the application of sample ware cooperation and be used for connecting the tip with the filter house of cooperation portion, the tip presents the elongated form, the internal peripheral portion of tip is the application of sample inner chamber that the axial link up, the peripheral part symmetry of tip is equipped with two at least bellyings, the bellyings be used for doing the tip supports out the space channel that the air of being convenient for flowed in.
Preferably, four of the protrusions are symmetrically disposed on the outer periphery of the tip portion.
Preferably, the convex part is in a side edge structure.
Preferably, the outer surface of the edge structure is a smooth surface.
Preferably, the cooperation portion with the filter house all is the toper and distributes, the cooperation portion pass through the step with the filter house is connected, the filter house pass through the transition taper section with the point portion is connected.
Preferably, a filter element for filtering air and blocking liquid is arranged in the filter part.
Use the utility model provides a can increase the rifle head device of air inflow during, cooperation portion can be connected with the cooperation of outside injector, and the filter house plays the effect of isolated cooperation portion and point portion. The point portion presents the elongated form, and the inner peripheral part of point portion is the application of sample inner chamber that the axial link up, communicate each other completely, and the inner peripheral part of point portion is wrapped up by the bellying of two at least symmetries, and when carrying out liquid transfer operation, the point portion has the effect of storing liquid, and liquid presents the elongated form in the application of sample inner chamber of point portion, can realize accurate application of sample operation. And, after the rifle head got into the reagent storehouse, the bellying of point portion surface can support the space passageway that the air of being convenient for flowed in for the point portion to avoid because of sealed lid shrink nature is fabulous, and cause the outer surface of parcel rifle head too closely, hinder the air inflow, influence the liquid-transfering precision of rifle head in airtight space.
To sum up, the utility model provides a can increase the rifle head device of air inflow can effectively improve the rifle head and at the liquid-transfering precision in airtight space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gun head device capable of increasing air inflow provided by the present invention;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a cross-sectional view of fig. 1.
In fig. 1-3:
1 is sharp portion, 2 is cooperation portion, 3 is the filter house, 4 is the bellying, 5 is the filter core, 6 is the application of sample inner chamber, 7 is transition taper section, 8 is the guide way, 9 is the ring channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a can increase the rifle head device of air inflow, can effectively improve the rifle head and move the liquid precision in airtight space.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a gun head device capable of increasing air inflow according to the present invention; FIG. 2 is a side view of FIG. 1; fig. 3 is a cross-sectional view of fig. 1.
This embodiment provides a rifle head device that can increase air inflow, includes: the device comprises a tip portion 1 for sucking liquid, a matching portion 2 for being connected with a sample injector in a matching mode, and a filtering portion 3 for connecting the tip portion 1 and the matching portion 2, wherein the tip portion 1 is in a long and slender shape, the inner peripheral portion of the tip portion 1 is a sample injection inner cavity 6 which is axially communicated, at least two protruding portions 4 are symmetrically arranged on the outer peripheral portion of the tip portion 1, and the protruding portions 4 are used for supporting a gap channel which is convenient for air to flow into for the tip portion 1.
Can be in the in-service use in-process, according to actual conditions and actual demand, confirm shape, structure, size, material, position etc. of sharp portion 1, bellying 4, cooperation portion 2 and filter house 3.
Use the utility model provides a can increase the rifle head device of air inflow during, cooperation portion 2 can be connected with the cooperation of outside injector, and filter house 3 plays isolated cooperation portion 2 and the effect of point portion 1. Tip 1 presents the elongated form, and the inner peripheral part of tip 1 is the application of sample inner chamber 6 that the axial is link up, communicates each other completely, and the inner peripheral part of tip 1 is wrapped up by the bellying 4 of two at least symmetries, when carrying out the liquid transfer operation, and tip 1 has the effect of storing liquid, and liquid presents the elongated form in the application of sample inner chamber 6 of tip 1, can realize accurate application of sample operation. And, after the rifle head gets into the reagent storehouse, the bellying 4 of point 1 surface can support out the space passageway that the air of being convenient for flowed in for point 1 to avoid because of sealed lid shrink is fabulous, and cause the outer surface of parcel rifle head too closely, hinder the air inflow, influence the rifle head in airtight space move liquid the precision.
To sum up, the utility model provides a can increase the rifle head device of air inflow can effectively improve the rifle head and at the liquid-transfering precision in airtight space.
In addition to the above embodiments, it is preferable that the outer periphery of the tip portion 1 is symmetrically provided with four convex portions 4, so as to facilitate the manufacturing and ensure that the tip portion 1 is supported by a sufficient air inflow gap channel.
Preferably, the protruding portion 4 has a ridge structure. When liquid in the closed reagent bin is sucked, the sealing cover of the reagent bin has excellent contractibility, and the edge structure can effectively increase the air inflow channel, so that the pipetting precision of the gun head in the closed space is improved. Also can increase 4 arriss structures in the 1 outside of sharp portion, can prop out the clearance passageway when the arris structure inserts sealed lid to in making the air can flow into the reagent storehouse, the liquid operation is got to sharp portion 1 of being convenient for.
In the actual application process, the shape, the structure, the size, the number, the position and the like of the edge structure can be determined according to the actual situation and the actual requirement.
Preferably, the surface of arris structure is the smooth surface to avoid the device to lead to the fact the damage to sealed lid when inserting reagent storehouse, and then influence the sealed effect of reagent storehouse in follow-up process.
On the basis of the above-mentioned embodiment, preferably, the matching part 2 and the filtering part 3 are distributed in a tapered shape, the matching part 2 is connected with the filtering part 3 through a step, and the filtering part 3 is connected with the tip part 1 through the transition taper section 7.
It should be noted that the matching portion 2 can be provided with the guide groove 8, the inner wall of the matching portion 2 is provided with the annular groove 9, the matching portion 2 is in conical distribution and is large in top and small in bottom, the matching portion 2 is a part of the whole gun head matched with an external sample injector, and the matching portion 2 has good sealing performance.
It should also be noted that the whole gun head is in a circular tubular distribution, the matching part 2 is connected with the filtering part 3 through a step, and the filtering part 3 is connected with the tip part 1 through a transition taper section 7 to form an integral structure, wherein the diameter of the tip part 1 is far smaller than that of the filtering part 3. In the actual liquid-transfering process, the matching part 2 can be matched and connected with an external sample applicator, and can realize stable sealing and meet the high-precision liquid-transfering and sample-applying requirements. After the gun head enters the reagent bin, the edge structure on the outer surface of the tip part 1 can support a sealing cover with better sealing property to form a gap channel which is convenient for air to flow in so as to improve the pipetting precision of the gun head in a closed space.
Preferably, a filter element 5 for filtering air and blocking liquid is provided in the filter part 3. The filtering part 3 comprises a filtering cavity body with smaller diameter than the matching part 2, and a filter element 5 which can filter gas and separate liquid is arranged in the filtering cavity body. The filter part 3 has the function of isolating the fitting part 2 and the tip part 1, and is used for protecting the fitting part 2 and preventing the fitting part 2 from being polluted.
It should be noted that the directions and positional relationships indicated by "inside and outside" and the like in the present application are based on the directions and positional relationships shown in the drawings, and are only for the convenience of simplifying the description and facilitating the understanding, but do not indicate or imply that the device or the element to be referred to must have a specific direction, be constructed in a specific direction and operate, and therefore, should not be construed as limiting the present invention.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.
The above details are provided for the gun head device capable of increasing the air inflow provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A lance tip apparatus for increasing the inflow of air, comprising: a clearance passageway that is used for absorbing sharp portion (1) of liquid, is used for cooperation portion (2) of being connected with the application of sample ware cooperation and being used for connecting point portion (1) with filtering part (3) of cooperation portion (2), point portion (1) presents the elongated form, the internal peripheral part of point portion (1) is the application of sample inner chamber (6) that the axial link up, the outer peripheral part symmetry of point portion (1) is equipped with two at least bellying (4), bellying (4) are used for doing tip portion (1) supports out the air of being convenient for and flows in.
2. The lance head apparatus for increasing the inflow of air according to claim 1, wherein the tip portion (1) is provided with four protrusions (4) symmetrically around its outer circumference.
3. Lance head apparatus for increasing the inflow of air according to claim 2, characterised in that the projection (4) is of arris configuration.
4. A lance head apparatus according to claim 3, in which the outer surface of the edge formation is smooth.
5. Lance head apparatus according to any one of claims 1 to 4, wherein the fitting part (2) and the filter part (3) are arranged in a conical shape, the fitting part (2) is connected to the filter part (3) by a step, and the filter part (3) is connected to the tip part (1) by a transition cone (7).
6. A lance head apparatus for increasing the inflow of air according to claim 5, characterised in that a filter element (5) for filtering air and for separating liquid is provided in the filter portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025965.0U CN216419453U (en) | 2021-12-03 | 2021-12-03 | Gun head device capable of increasing air inflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025965.0U CN216419453U (en) | 2021-12-03 | 2021-12-03 | Gun head device capable of increasing air inflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216419453U true CN216419453U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123025965.0U Active CN216419453U (en) | 2021-12-03 | 2021-12-03 | Gun head device capable of increasing air inflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216419453U (en) |
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2021
- 2021-12-03 CN CN202123025965.0U patent/CN216419453U/en active Active
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