CN211235543U - Fluorescent detection pen for powder probe - Google Patents

Abstract

The utility model relates to a fluorescence detection pen that can be used to powder probe, including the handwriting, be equipped with the division board in the handwriting and divide into the handwriting and hold the chamber with holding down the chamber, it has the intercommunication mouth to open on the division board, and the intercommunication mouth is opened or is closed by setting up in the first on-off control who holds the intracavity on, is provided with the package core under and holds the intracavity, has inserted the nib at package core tip, and the nib stretches out from holding the chamber tip down, holds intracavity two at last and stores up the appearance pipe, and the upper end of storing up the appearance pipe is stretched out and is held the chamber and be provided with the detachable sealing cap, and the lower extreme of storing up the appearance pipe is opened or is closed by second on. The utility model discloses can store probe powder and solvent respectively simultaneously, dispose the probe solution of required concentration immediately when using, guarantee the reliability of probe solution, can not appear because the problem that the time overlength leads to becoming invalid, convenient to use has widened powder probe's application prospect to can used repeatedly, practice thrift the cost.

Description

Fluorescent detection pen for powder probe

Technical Field

The utility model relates to a fluorescence detection device, in particular to a fluorescence detection pen which can be used for a powder probe.

Background

Since the self-absorption phenomenon of the fluorescent probe can cause fluorescence self-quenching at high concentration, the fluorescent probe usually detects a target object in a dilute solution with lower concentration, but the fluorescence property of many fluorescent probes in a solution with low concentration is unstable, and the phenomenon of complete fluorescence quenching can occur in a short time (several hours), and particularly for some novel fluorescent nano materials, such as metal nano clusters, the fluorescent probe usually needs to be stored in a powder form or a high-concentration solution state. The current fluorescence detection pen mostly injects the probe solution into the roll-wrapping core directly, and the fluorescence property of the probe in the solution state can only be kept for a short time, so the fluorescence detection pen needs to be prepared with the solution outside the detection pen and then injected into the pen body, and the prepared fluorescence probe solution is not suitable for a long time. If a fluorescence detection pen capable of respectively carrying probe powder and a solvent thereof can be designed, a probe solution with a required concentration is prepared in real time when the fluorescence detection pen is used, so that convenience can be brought to detection, and the application range of the powder probe can be widened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fluorescence detection pen that can be used to powder probe to solve the difficult save of current fluorescence probe, use inconvenient problem.

The utility model discloses a realize like this: the utility model provides a fluorescence detection pen that can be used to powder probe, includes the handwriting be equipped with the division board in the handwriting and divide into the handwriting and hold chamber and hold the chamber down on opening the division board has the intercommunication mouth, the intercommunication mouth by set up in it opens or closes to hold first on-off control of intracavity hold down be provided with the package core in the chamber the nib has been inserted to package core tip, the nib is followed hold chamber tip down and stretch out on holding the intracavity two store up the appearance pipe, the upper end of storing up the appearance pipe is stretched out it holds the chamber and is provided with the detachable closing cap on, the lower extreme of storing up the appearance pipe is controlled its opening or closing by the second on-off.

The second switch includes threaded connection and is in store up the screw cap of the upper end of appearance pipe, the screw cap link up from top to bottom and be in the screw cap internal fixation has the straight-bar the lower extreme of straight-bar is equipped with the closing disk, the straight-bar stretches to store up the lower extreme of appearance pipe, it is rotatory the screw cap control the closing disk will store up the lower port closure and the opening of appearance pipe, the closing cap set up in the top of screw cap.

The first switch comprises a spiral rod which is in threaded connection with the upper cavity, the upper end of the spiral rod extends out of the upper end of the sample storage tube, the lower end of the spiral rod extends to the lower end of the upper cavity, a sealing plate is arranged at the lower end of the spiral rod, and the spiral rod is rotated to control the sealing plate to move up and down, so that the sealing plate can open or close the communication port.

The sealing disc and the sealing plate are both planar rubber discs.

The lower end of the pen body is a detachable tapered tube, and the pen point penetrates out of the tapered tube.

The pen cap is buckled at the lower end of the pen body.

And scales are arranged on the tube wall of the sample storage tube.

The utility model discloses divide into the handwriting and hold the chamber with lower appearance chamber, be provided with the package core and insert the nib on the package core in the lower container, go up to hold the intracavity and be equipped with two and store up the appearance pipe, be used for splendid attire probe powder and solvent respectively. When the probe powder injection device is used, the sealing plate is firstly ensured to seal the communication port on the partition plate, the sealing disc seals the lower port of the sample storage tube, then the sealing cap is opened, a certain amount of probe powder is added into one sample storage tube, and a corresponding solvent is added into the other sample storage tube. When the probe solution is required to be used for detection, the lower port of the sample storage tube filled with the powder is opened, a certain amount of probe powder is added into the upper containing cavity, then the lower port of the sample storage tube is closed, and then the lower port of the other sample storage tube is opened, so that the solvent enters the upper containing cavity and then the lower port of the sample storage tube is closed. And shaking the pen body to ensure that the probe powder in the upper cavity is fully contacted with the solvent, so that the powder is dissolved to obtain the probe solution. Then the communicating port on the partition plate is opened, so that the probe solution enters the lower cavity and is guided into the wrapping core, and after the pen point is soaked by the probe solution, the fluorescence detection can be carried out. The coiled core and the pen point can be replaced after use, the sample storage tube and the inner cavity of the pen body are cleaned, and the probe powder and the solvent are added again after being dried for next use.

The utility model discloses can store probe powder and solvent respectively simultaneously, prepare the probe solution of required concentration immediately when using, guarantee the reliability of probe solution, can not appear because the problem that the time overlength leads to becoming invalid, convenient to use has widened powder probe's application prospect to can used repeatedly, practice thrift the cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a pen body; 2. a partition plate; 3. an upper cavity; 4. a lower cavity; 5. a communication port; 6. wrapping the core; 7. a pen point; 8. a sample storage tube; 9. sealing the cap; 10. a screw cap; 11. a straight rod; 12. sealing the disc; 13. a screw rod; 14. closing the plate; 15. a tapered tube; 16. and (4) a pen cap.

Detailed Description

As shown in fig. 1, the pen comprises a pen body 1, a partition plate 2 is arranged in the pen body 1 to divide the pen body 1 into an upper cavity 3 and a lower cavity 4, a communication port 5 is formed in the partition plate 2, the communication port 5 is controlled to be opened or closed by a first switch arranged in the upper cavity 3, a coiled core 6 is arranged in the lower cavity 4, a pen point 7 is inserted into the end portion of the coiled core 6, the pen point 7 extends out of the end portion of the lower cavity 4, two sample storage tubes 8 are arranged in the upper cavity 3, the upper ends of the sample storage tubes 8 extend out of the upper cavity 3 and are provided with detachable sealing caps 9, and the lower ends of the sample storage tubes 8 are controlled to be opened or closed by a second switch. The probe powder and the solvent can be respectively added into the two sample storage tubes 8 by opening the sealing cap 9, the probe powder and the solvent are stored in the sample storage tubes 8, the lower ports of the sample storage tubes 8 are opened through second switches on the two sample storage tubes 8 when the probe solution is used, a certain amount of the probe powder and the solvent sequentially enter the upper accommodating cavity 3, then the lower ports of the two sample storage tubes 8 are closed, the powder is fully dissolved in the solute by shaking to form a probe solution, then the communicating port 5 is opened, the probe solution enters the lower accommodating cavity 4 and is absorbed by the roll-coated core 6, and after the pen point 7 is soaked by the probe solution, fluorescence detection can be carried out.

Wherein, the second switch includes threaded connection at the screw cap 10 of the upper end of storing up appearance pipe 8, and the screw cap 10 link up from top to bottom and is fixed with straight-bar 11 in the screw cap 10, is equipped with seal 12 at the lower extreme of straight-bar 11, and straight-bar 11 stretches to the lower extreme of storing up appearance pipe 8, and rotatory screw cap 10 control seal 12 is closed and is opened the lower port of storing up appearance pipe 8, and seal 9 sets up in the top of screw cap 10. Be equipped with the external screw thread on the upper end outer wall of storing up appearance pipe 8 the latter half of screw cap 10 inner wall is equipped with the internal thread, and the internal thread of screw cap 10 cooperatees with the external screw thread of storing up appearance pipe 8, and screw cap 10 is inside to be the fretwork, can add probe powder or solvent in storing up appearance pipe 8 through screw cap 10 after opening the sealing cap 9 on the screw cap 10, and rotatory screw cap 10 can drive straight-bar 11 and reciprocate, and sealing disc 12 reciprocates along with straight-bar 11 simultaneously to open or close the port under will storing up appearance pipe 8. The lower port of the sample storage tube 8 can be in a sharp-mouthed shape, the diameter of the lower port of the sample storage tube 8 is smaller than the diameter of the inner cavity of the sample storage tube, the sealing disc 12 is a plane rubber disc, the diameter of the sealing disc 12 is larger than the diameter of the lower port and smaller than the diameter of the inner cavity, and the sealing disc 12 can completely seal the lower port. The sealing cap 9 is also made of rubber material and can be tightly buckled on the top of the screw cap 10, so that the upper end of the sample storage tube 8 is sealed.

The first switch includes threaded connection and holds the hob 13 in chamber 3 at last, and the upper end of hob 13 stretches out from the upper end that stores up appearance pipe 8, and the lower extreme of hob 13 stretches to the lower extreme that holds chamber 3 at last, is provided with shrouding 14 at the lower extreme of hob 13, thereby rotatory hob 13 control shrouding 14 reciprocates and makes shrouding 14 open or close intercommunication mouth 5. The upper end of the screw rod 13 is fixed with a rotating head which is convenient for manual screwing and can be hexagonal. The closing plate 14 is a flat rubber disk, and the communication port 5 is closed or opened by moving the closing plate 14 up and down by rotating the screw 13.

The lower end of the pen body 1 is a detachable tapered tube 15, and the pen point 7 penetrates out of the tapered tube 15. The upper part of the pen point 7 is large, the lower part of the pen point 7 is small, the upper part of the pen point 7 is inserted into the inner cavity of the conical tube 15, so that the pen point 7 can bear certain force without relative movement with the conical tube 15, and the lower end of the pen point 7 is flat, so that lines with consistent width can be conveniently drawn. The pen cap 16 is buckled at the lower end of the pen body 1, namely buckled on the conical tube 15. The cap 16 can be fastened on the tapered tube 15 at ordinary times to protect the pen head 7, and the cap 16 is removed when in use. The conical tube 15 is detachable, so that the pen point 7 and the coiled core 6 can be conveniently replaced.

The tube wall of the sample storage tube 8 is provided with scales, and the amount of the probe powder or the solvent added into the sample storage tube 8 can be controlled through the scales, or the amount of the probe powder or the solvent entering the upper accommodating cavity 3 from the sample storage tube 8 can be controlled through the scales. By precisely controlling the amounts of the probe powder and the solvent, a probe solution having a desired concentration is obtained.

The utility model is used for when the target object detected, use nib 7 to draw two thick lines that the distance is greater than 5 centimetres on the white paper, be marked as line 1 and line 2 respectively, drip the determinand solution on line 2, treat that the reaction is accomplished the back, observe two lines under the ultraviolet lamp, can observe the difference between line 1 and the line 2, if the determinand can quench the fluorescence of probe, then can observe that the fluorescence of line 2 is obviously less than line 1.

Wait to detect and finish the back, can pull down conical tube 15 and change package core 6 and nib 7 to use next time, if need change the probe kind, need store up appearance pipe 8, go up appearance chamber 3 and hold chamber 4 sanitization and dry down with two, add other probe powder and solvent can.

The utility model discloses can store probe powder and its solvent respectively, prepare the probe solution of required concentration immediately when using, for detecting brought the convenience, widened the application prospect of powder probe. Simultaneously the utility model discloses can used repeatedly, practice thrift the cost.

Claims (8)

1. The utility model provides a fluorescence detection pen that can be used to powder probe, its characterized in that, includes the handwriting be equipped with the division board in the handwriting divide into the handwriting and hold the chamber with holding down the chamber open on the division board has the intercommunication mouth, the intercommunication mouth by set up in it opens or closes to hold first on-off control of intracavity it is provided with the package core down hold intracavity it has inserted the nib to hold the core tip down, the nib is followed hold chamber tip down and stretch out on hold the intracavity be provided with two and store up the sample pipe, the upper end of storing up the sample pipe stretches out it holds the chamber and is provided with the detachable sealing cap on, the lower extreme of storing up the sample pipe is opened or is closed by setting up the second on-off control on storing up the sample pipe.

2. The fluorescence detection pen according to claim 1, wherein the second switch comprises a screw cap screwed to the upper end of the sample storage tube, the screw cap is vertically through and has a straight rod fixed therein, a sealing disc is disposed at the lower end of the straight rod, the straight rod extends to the lower end of the sample storage tube, the screw cap is rotated to control the sealing disc to close and open the lower port of the sample storage tube, and the sealing cap is disposed at the top of the screw cap.

3. The fluorescence detection pen for the powder probe according to claim 1, wherein the first switch comprises a screw rod screwed into the upper cavity, the upper end of the screw rod extends out from the upper end of the sample storage tube, the lower end of the screw rod extends out to the lower end of the upper cavity, a sealing plate is arranged at the lower end of the screw rod, and the screw rod is rotated to control the sealing plate to move up and down so that the sealing plate opens or closes the communication port.

4. The fluorescence detection pen for powder probe according to claim 2, wherein the sealing plate is a flat rubber plate.

5. The fluorescence detection pen for powder probe according to claim 3, wherein the sealing plate is a flat rubber disc.

6. The fluorescence detection pen for powder probe according to claim 1, wherein the lower end of the pen body is a detachable taper tube, and the pen head penetrates out of the taper tube.

7. The fluorescence detection pen for powder probe according to claim 1, further comprising a cap fastened to a lower end of the pen body.

8. The fluorescence detecting pen for powder probe according to claim 1, wherein a scale is provided on a tube wall of the sample storage tube.

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