CN217717796U - Conductive sampling needle with filter element - Google Patents

Abstract

The utility model discloses a take electrically conductive application of sample needle of filter core relates to application of sample needle technical field. The utility model discloses a fixed outer loop of application of sample needle, including fixed outer loop, fixed side lever, driving motor's output is installed to one side, the outside fixed inner loop that is located of application of sample needle has the syringe needle, the externally mounted of application of sample needle has first fixed outer loop, still includes fixed side lever, fixed side lever is located the both sides of the outside first fixed outer loop lower extreme of application of sample needle, the externally mounted of application of sample needle has fixed inner ring, fixed inner ring and fixed side lever sliding connection, fixed inner ring's internally mounted has the electro-magnet, driving motor is installed to the inside one side of first fixed outer loop, the screw rod is installed to driving motor's output, the outside fixed outside one side of inner ring that is located of screw rod installs the slider, the application of sample needle lower extreme is located one side of syringe needle upper end and installs the connection chassis, the intermediate position department of the upper end of connecting the chassis installs fixed pole setting. The magnetic force generated by the electromagnet generates attraction force on the metal inner ring, so that the height of the filter element is convenient to change.

Description

Conductive sampling needle with filter element

Technical Field

The utility model relates to a loading needle technical field specifically is a take electrically conductive loading needle of filter core.

Background

At present, the industries of clinical examination, pharmacy, life science research, animal and plant inspection and quarantine, and the like are all equipped with a sample adding needle for sample adding of an instrument so as to complete the preparation and transmission of reagents. The mechanical automatic movement of the sample adding needle is adopted for sample adding, and the method has the characteristics of high speed, high accuracy and the like.

The position of the filter core may need to be changed according to the demand in the use process of the existing conductive sample adding needle with the filter core, so that different filtering demands are met, but the traditional filter core does not have the function of changing the position of the filter core.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take electrically conductive application of sample needle of filter core to the electrically conductive application of sample needle of filter core that brings forward in solving above-mentioned background art does not possess the problem to the change function of filter core position.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take electrically conductive application of sample needle of filter core, includes the application of sample needle, the internally mounted of application of sample needle lower extreme has the syringe needle, the externally mounted of application of sample needle has first fixed outer loop, still includes fixed side lever, fixed side lever is located the both sides of the outside first fixed outer loop lower extreme of application of sample needle, the externally mounted of application of sample needle has fixed inner ring, fixed inner ring and fixed side lever sliding connection, the internally mounted of fixed inner ring has the electro-magnet, driving motor is installed to the inside one side of first fixed outer loop, the screw rod is installed to driving motor's output, the outside slider of being located the outside one side of fixed inner ring of screw rod is installed, and slider and screw rod pass through screw-thread fit and be connected, the application of sample needle lower extreme is located one side of syringe needle upper end and installs the connection chassis, the intermediate position department of connecting the upper end of chassis installs fixed pole setting, the externally mounted of fixed pole setting has the slip cap, the externally mounted of slip cap has the metal inner ring, the outside of metal inner ring is installed the fixed outer loop of second through the link, the externally mounted of the fixed outer loop of second has the piston ring, install the filter core between fixed outer loop of second and the metal.

Preferably, the electromagnet is fixedly connected with the fixed inner ring, and the driving motor is fixedly connected with the first fixed outer ring.

Preferably, the sliding block is fixedly connected with the fixed inner ring, and the second fixed outer ring is fixedly connected with the filter element.

Preferably, the sliding sleeve is connected with the fixed vertical rod in a sliding mode.

Preferably, four fixing holes which are uniformly distributed along the annular shape are formed in the upper end of the connecting bottom frame, the fixing holes and the connecting bottom frame are integrally formed, a fixing rod is installed on one side, located at the upper end of the fixing holes, in the lower end of the sample adding needle, and the fixing rod is matched with the fixing holes.

Preferably, the needle head is connected with the sample adding needle in a threaded fit manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a when the height of filter core is adjusted to needs, start the electro-magnet, the electro-magnet sends magnetic force and produces the appeal to the metal inner ring, starts driving motor, and the screw rod of its output rotates, and the slider converts the rotary motion of screw rod into the linear motion of slider and electro-magnet with the screw rod under screw-thread fit to make the electro-magnet go up and down to remove, metal inner ring and filter core remove thereupon under the effect of magnetic force, with this height of adjusting the filter core.

2. The utility model discloses a rotate the syringe needle, convert the rotary motion of syringe needle into linear motion under screw-thread fit to make the syringe needle break away from the application of sample needle, cancelled the fixed to connecting the chassis, will connect the chassis and move down and take out, thereby make fixed pole setting and outside filter core take out thereupon, so that the renew cartridge, simultaneously, make the installation of filter core convenient and fast more.

3. The utility model discloses a sliding connection of slip cap and fixed pole setting makes the lift of filter core more stable to prevent that magnetic force from adsorbing and leading to metal inner ring slope to influence the filter effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partially enlarged view of the area a in fig. 1 according to the present invention;

fig. 3 is a partially enlarged view of the area B in fig. 1 according to the present invention;

FIG. 4 is a perspective view of the fixed outer ring structure of the present invention;

fig. 5 is a perspective view of the connecting bottom ring of the present invention.

In the figure: 1. a sample adding needle; 2. a needle head; 3. connecting the underframe; 4. fixing the vertical rod; 5. a fixing hole; 6. fixing the rod; 7. a first fixed outer ring; 8. fixing a side lever; 9. fixing the inner ring; 10. an electromagnet; 11. a drive motor; 12. a screw; 13. a slider; 14. a sliding sleeve; 15. a metal inner ring; 16. a second fixed outer ring; 17. a filter element; 18. a piston ring.

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.

Referring to fig. 1-5, the present invention provides an embodiment: a conductive sample adding needle with a filter element comprises a sample adding needle 1, a needle head 2 is arranged in the lower end of the sample adding needle 1, a first fixed outer ring 7 is arranged outside the sample adding needle 1, a fixed side lever 8 is also arranged, the fixed side lever 8 is positioned on two sides of the lower end of the first fixed outer ring 7 outside the sample adding needle 1, a fixed inner ring 9 is arranged outside the sample adding needle 1, the fixed inner ring 9 is connected with the fixed side lever 8 in a sliding way, an electromagnet 10 is arranged inside the fixed inner ring 9, a driving motor 11 is arranged on one side inside the first fixed outer ring 7, a screw rod 12 is arranged at the output end of the driving motor 11, a slide block 13 is arranged on one side outside the fixed inner ring 9 outside the screw rod 12, the slide block 13 is connected with the screw rod 12 in a thread fit manner, a connecting bottom frame 3 is arranged on one side of the lower end of the sample adding needle 1, which is positioned at the upper end of the needle head 2, a fixed vertical rod 4 is arranged at the middle position of the upper end of the connecting bottom frame 3, the external portion of the fixed vertical rod 4 is provided with a sliding sleeve 14, the external portion of the sliding sleeve 14 is provided with a metal inner ring 15, the external portion of the metal inner ring 15 is provided with a second fixed outer ring 16 through a connecting frame, the external portion of the second fixed outer ring 16 is provided with a piston ring 18, a filter element 17 is arranged between the second fixed outer ring 16 and the metal inner ring 15, the electromagnet 10 is started, the electromagnet 10 emits magnetic force to generate attraction force on the metal inner ring 15, the driving motor 11 is started, the screw rod 12 at the output end of the driving motor 11 rotates, the rotary motion of the screw rod 12 is converted into the linear motion of the slider 13 and the electromagnet 10 through the threaded matching of the slider 13 and the screw rod 12, so that the electromagnet 10 is lifted and moved, the metal inner ring 15 and the filter element 17 move along with the magnetic force, and the height of the filter element 17 is convenient to adjust.

Referring to fig. 1 and 2, the electromagnet 10 is fixedly connected to the fixed inner ring 9, and the driving motor 11 is fixedly connected to the first fixed outer ring 7.

Referring to fig. 1, 2 and 4, the sliding block 13 is fixedly connected to the inner fixed ring 9, the second outer fixed ring 16 is fixedly connected to the filter element 17, and the sliding block 13 plays a role in moving the second outer fixed ring 16.

Referring to fig. 1 and 2, the sliding sleeve 14 is slidably connected to the fixed vertical rod 4, and the sliding sleeve 14 is slidably connected to the fixed vertical rod 4 to enable the filter element 17 to ascend and descend more stably, so as to prevent the metal inner ring 15 from inclining due to magnetic absorption to affect the filtering effect.

Referring to fig. 1 and 3, the upper end of the connecting chassis 3 is provided with four fixing holes 5 uniformly distributed along a ring shape, the fixing holes 5 and the connecting chassis 3 are integrally formed, one side of the lower end of the sampling needle 1, which is positioned at the upper end of the fixing holes 5, is provided with a fixing rod 6, the fixing rod 6 is matched with the fixing holes 5, the needle head 2 is rotated, the rotary motion of the needle head 2 is converted into linear motion under the thread fit, so that the needle head 2 is separated from the sampling needle 1, the fixing of the connecting chassis 3 is cancelled, the connecting chassis 3 is moved downwards and is drawn out, and the fixing upright rod 4 and the external filter element 17 are taken out accordingly.

Referring to fig. 1 and 3, the needle head 2 is connected with the sample injection needle 1 by screw thread fit.

The working principle is as follows: during the use, syringe needle 2 rotates, convert the rotary motion of syringe needle 2 into linear motion under screw-thread fit, thereby make syringe needle 2 break away from application of sample needle 1, the fixed to connecting chassis 3 has been cancelled, it takes out to connect chassis 3 downstream, thereby make fixed pole setting 4 and outside filter core 17 take out thereupon, so that change filter core 17, and simultaneously, make the installation of filter core 17 convenient and fast more, when the height of filter core 17 needs to be adjusted, start electromagnet 10, electromagnet 10 sends magnetic force and produces the appeal to metal inner ring 15, start driving motor 11, the screw rod 12 of its output rotates, slider 13 and screw rod 12 convert the rotary motion of screw rod 12 into the linear motion of slider 13 and electromagnet 10 under screw-thread fit, thereby make electromagnet 10 carry out the lift and move, metal inner ring 15 and filter core 17 move along with it under the effect of magnetic force, so that the height of filter core 17 is adjusted, sliding connection through sliding sleeve 14 and fixed pole setting 4 makes the lift of filter core 17 more stable, thereby prevent that magnetic force from adsorbing and leading to metal inner ring 15 slope and influencing the filter effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a take electrically conductive application of sample needle of filter core, includes application of sample needle (1), the internally mounted of application of sample needle (1) lower extreme has syringe needle (2), the externally mounted of application of sample needle (1) has first fixed outer loop (7), its characterized in that: also comprises a fixed side lever (8), the fixed side lever (8) is positioned at two sides of the lower end of a first fixed outer ring (7) outside the sample adding needle (1), a fixed inner ring (9) is arranged outside the sample adding needle (1), the fixed inner ring (9) is connected with a fixed side rod (8) in a sliding way, an electromagnet (10) is arranged in the fixed inner ring (9), a driving motor (11) is arranged at one side inside the first fixed outer ring (7), the output end of the driving motor (11) is provided with a screw rod (12), a slide block (13) is arranged on one side of the outer part of the screw rod (12) which is positioned outside the fixed inner ring (9), and the sliding block (13) is connected with the screw rod (12) in a thread fit way, a connecting underframe (3) is arranged on one side of the lower end of the sample adding needle (1) which is positioned at the upper end of the needle head (2), a fixed upright (4) is arranged in the middle of the upper end of the connecting underframe (3), a sliding sleeve (14) is arranged outside the fixed upright stanchion (4), a metal inner ring (15) is arranged outside the sliding sleeve (14), a second fixed outer ring (16) is arranged outside the metal inner ring (15) through a connecting frame, a piston ring (18) is arranged outside the second fixed outer ring (16), and a filter element (17) is arranged between the second fixed outer ring (16) and the metal inner ring (15).

2. The conductive sample adding needle with the filter element as claimed in claim 1, wherein: the electromagnet (10) is fixedly connected with the fixed inner ring (9), and the driving motor (11) is fixedly connected with the first fixed outer ring (7).

3. The conductive sample adding needle with the filter element as claimed in claim 1, wherein: the sliding block (13) is fixedly connected with the fixed inner ring (9), and the second fixed outer ring (16) is fixedly connected with the filter element (17).

4. The conductive sample adding needle with the filter element as claimed in claim 1, wherein: the sliding sleeve (14) is connected with the fixed vertical rod (4) in a sliding manner.

5. The conductive sample adding needle with the filter element as claimed in claim 1, wherein: connect the upper end of chassis (3) and offer four fixed orificess (5) along annular evenly distributed, and fixed orificess (5) and connect chassis (3) integrated into one piece, dead lever (6) are installed to one side that the inside fixed orifices (5) upper end that is located of application of sample needle (1) lower extreme, and dead lever (6) and fixed orifices (5) looks adaptation.

6. The conductive sample adding needle with the filter element as claimed in claim 1, wherein: the needle head (2) is connected with the sample adding needle (1) in a threaded fit manner.

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