CN218496768U - Fluorescence detector - Google Patents

Abstract

The utility model discloses a fluorescence detector relates to biological sample detector field, it includes the detector casing, the front of detector casing is provided with the light filtering observation window, it is equipped with the light filter to inlay on the light filtering observation window, be provided with a plurality of test tube seats in the detector casing, be provided with the hole of rightting that corresponds with every test tube seat on the roof of detector casing, it supplies test tube sliding insertion to right the hole to correspond on the test tube seat, the top of test tube is higher than righting the hole, install ultraviolet source or a plurality of test tube sharing ultraviolet source on every test tube seat, be provided with the light screen between the adjacent test tube seat. The problem of biological sample detection in the prior art with fluorescence detector portability poor is solved.

Description

Fluorescence detector

Technical Field

The utility model relates to a biological sample detector field specifically is fluorescence detector.

Background

Certain compounds can be excited to fluoresce when irradiated with ultraviolet light, and the energy of the emitted fluorescence can be measured and quantified. Many life science related substances such as nucleic acids, amino acids, amines, vitamins, steroids and certain metabolic drugs can be detected by fluorescence. Fluorescence detectors are useful in trace analysis of biological samples, particularly after use of fluorescent derivatizing agents, to detect very small amounts of nucleic acids, amino acids, and peptides. Viruses are often detected using fluorescence detectors. The existing fluorescence detector is usually a laboratory instrument integrated with an analyzer, is poor in portability, and cannot heat some samples needing to be heated.

There is a need for improvement in view of the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a fluorescence detector to solve the problems of the background art.

In order to realize the above object, the utility model provides a fluorescence detector, it includes the detector casing, the front of detector casing is provided with the light filtering observation window, it is equipped with the light filter to inlay on the light filtering observation window, be provided with a plurality of test tube seats in the detector casing, be provided with the hole of rightting that corresponds with every test tube seat on the roof of detector casing, on the hole of righting supplies test tube sliding insertion to correspond the test tube seat, the top of test tube is higher than the ultraviolet source who installs the irradiation test tube lower part on righting the hole test tube seat, be provided with the light screen between the adjacent test tube seat.

Preferably, the test tube seat is provided with a heater, the heater is arranged on the periphery of the bottom of the test tube and comprises a sector-shaped light blocking shell and a plurality of heating tubes arranged in the light blocking shell.

Preferably, the test tube base is sleeved with a bearing, the outer ring of the bearing is sleeved with a gear, the bottom end of the heater is fixed on the top surface of the gear, the gear is meshed with a rack on one side, the rack is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is in transmission connection with the output end of the motor.

Preferably, the rack is slidably connected to an inner wall of one side of the detector housing.

Preferably, the inner wall of one side of the detector shell is provided with a sliding groove corresponding to the rack, the sliding groove is a dovetail groove, and a dovetail boss embedded in the sliding groove is fixed on one side of the rack away from the gear.

Preferably, the end of the cuvette remote from the uv light source is connected to a connection bracket which extends through the top of the detector housing and outwardly.

Preferably, a storage battery for supplying power to the heater and the ultraviolet light source is installed in the detector housing.

Preferably, one side of the detector shell is provided with an ultraviolet light starting button and a heating starting button, the heating starting button is electrically connected with the heater and the motor, and the ultraviolet light starting button is electrically connected with the ultraviolet light source.

Preferably, each test tube seat is correspondingly provided with an ultraviolet light source, or a plurality of test tubes share one ultraviolet light source.

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

1. the fluorescence detector in the scheme is simple in structure and convenient to carry, when fluorescence detection is needed, the test tube is inserted into the test tube seat from the righting hole, and the bottom and the upper part of the test tube are supported by the test tube seat and the righting hole respectively, so that the test tube can be placed stably; pressing an ultraviolet light starting button to turn on an ultraviolet lamp, irradiating a test tube through an ultraviolet light source, and observing whether fluorescence exists in the test tube through a filtering observation window after filtering so as to quickly detect.

1. The utility model discloses a starting motor drives the axle center that the second connecting rod used the motor and is circular motion as the centre of a circle, drives head rod pulling rack and slides along the spout repeatedly, drives the gear of meshing and rotates repeatedly, makes the heater rotate around the test tube periphery, can change the heating position, makes the test tube heating more even.

Drawings

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

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a cross-sectional view of the heater in the radial direction.

In the figure: 1. the device comprises a detector shell, 2, an ultraviolet light starting button, 3, a test tube seat, 4, a heater, 6, a gear, 7, a rack, 8, a chute, 9, a first connecting rod, 10, a second connecting rod, 11, a motor, 12, a test tube, 13, a connecting frame, 14, a heating starting button, 15 and a storage battery, wherein the detector shell is arranged on the detector shell; 16. and filtering the observation window.

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.

Referring to fig. 1, the fluorescence detector includes a detector housing 1, a filter observation window 16 is disposed on a front surface of the detector housing 1, and an optical filter is embedded on the filter observation window 16, and the optical filter can filter light entering from outside the detector housing to affect observation of fluorescence, and the fluorescence can be seen by an observer outside through the optical filter.

A plurality of test tube seats 3 are arranged in the detector shell 1, the number of the test tube seats 3 is not less than 2, and the test tube seats are arranged according to actual needs. Be provided with on detector housing 1's the roof with every test tube seat 3 corresponds right the hole, right the hole and supply test tube 12 to slide to insert corresponding test tube seat 3 on, test tube 12's top is higher than right the hole for the link 13 on test tube 12 top is located detector housing 1's roof top, test tube 12 keeps away from the one end of ultraviolet source and is connected with link 13, link 13 link up detector housing 1's top and outside extension, so that take. Each test tube holder 3 is provided with an ultraviolet light source (not shown in the figure) or a plurality of test tubes 12 share one ultraviolet light source, which is required to ensure that the ultraviolet light source can sufficiently irradiate the substances contained in the test tubes 12. After the test tube 12 with the sample is placed on the test tube holder 3, the ultraviolet light source is turned on and irradiates from the bottom end of the test tube 12, and the peroxide, the ester compound and the fluorescent dye in the sample emit fluorescence under the irradiation of the ultraviolet light. Be provided with the light screen between the adjacent test tube seat 3, can avoid the light influence between the adjacent test tube 12.

In a preferred embodiment of the present embodiment, the heater 4 is installed on the test tube holder 3, and the heater 4 is disposed on the periphery of the bottom of the test tube 12. As shown in fig. 3, the heater 4 includes a light-blocking housing 42 having a fan-ring shape and a plurality of heating pipes 41 disposed in the light-blocking housing 42. The light blocking housing 42 is light-proof and has good thermal conductivity, the light blocking housing 42 can make the heat of the heating pipe 41 more uniform, and the light blocking housing 42 can function as a light blocking plate, so that the structure of the fluorescence detector is more compact. When the sample in the test tube 12 is subjected to fluorescence detection, the temperature uniformity is poor, an edge effect exists, and the heater 4 generates appropriate temperature to heat the sample in the test tube, so that the temperature in the sample is more uniform.

As shown in fig. 2, a cylindrical boss is fixed in the middle of the test tube holder 3, a bearing is fixedly sleeved on the cylindrical boss, a gear 6 is sleeved on an outer ring of the bearing, the bottom end of the heater 4 is fixed on the top surface of the gear 6, the gear 6 is meshed with a rack 7 on one side, the rack 7 is hinged with one end of a first connecting rod 9, the other end of the first connecting rod 9 is hinged with one end of a second connecting rod 10, and the other end of the second connecting rod 10 is in transmission connection with an output end of a motor 11. It rotates as the center round its one end of being connected with motor 11 to drive second connecting rod 10 through motor 11 positive and negative rotation, it slides along spout 8 repeatedly to drive head rod 9 pulling rack 7, drive gear 6 through rack 7 and rotate, thereby it fixes heater 4 on gear 6 round the peripheral rotation of test tube 12 circumference to drive, improve the homogeneity of heating, after the heating is accomplished, heater 4 need stop in one side of 16 dorsad light filtering observation window, avoid influencing follow-up observation, then open the ultraviolet ray again and carry out fluorescence detection.

The rack 7 is slidably connected to the inner wall of one side of the detector housing 1. The inner wall of detector casing 1 one side corresponds rack 7 and has seted up spout 8, and spout 8 is the dovetail, and one side that gear 6 was kept away from to rack 7 is fixed with the forked tail boss that imbeds in the spout 8. The dovetail boss and the dovetail groove can play guiding and limiting roles, the rack 7 is guaranteed to move along the sliding groove 8 all the time, and the reliability of meshing of the rack 7 and the gear 6 is improved.

A battery 15 is mounted in the detector housing 1 for powering the heater 4 and the uv light source, the battery 15 preferably being a rechargeable lithium battery to improve range, and the detector being more portable by the provision of electrical power from the battery.

As shown in fig. 1, one side of the detector housing 1 is provided with an ultraviolet light start button 2 and a heating start button 14, the heating start button 14 is electrically connected with the heater 4 and the motor 11, and the heater 4 is started by the heating start button 14 and the motor 11 is started to drive the heater 4 to rotate so as to uniformly heat the test tube. The ultraviolet light start button 2 is electrically connected with the ultraviolet light source, and the ultraviolet light source can be turned on to irradiate the test tube 12 by pressing the ultraviolet light start button 2.

Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (9)

1. A fluorescence detector, characterized by: including detector casing (1), the front of detector casing (1) is provided with light filtering observation window (16), it is equipped with the light filter to inlay on light filtering observation window (16), be provided with a plurality of test tube seats (3) in detector casing (1), be provided with on the roof of detector casing (1) with every the hole of righting that test tube seat (3) correspond, it supplies test tube (12) sliding insertion to correspond to right the hole on test tube seat (3), the top of test tube (12) is higher than right the hole, install on test tube seat (3) and shine test tube (12) lower part's ultraviolet light source, it is adjacent be provided with the light screen between test tube seat (3).

2. The fluorescence detector of claim 1, wherein: install heater (4) on test tube seat (3), heater (4) set up in the periphery of test tube (12) bottom, heater (4) including be fan annular be in the light casing (42) and arrange in the many with heating pipe (41) in the casing (42) that is in the light.

3. The fluorescence detector of claim 2, wherein: the test tube comprises a test tube seat (3), a bearing is sleeved on the test tube seat (3), a gear (6) is sleeved on an outer ring of the bearing, the bottom end of a heater (4) is fixed on the top surface of the gear (6), the gear (6) is meshed with a rack (7) on one side, the rack (7) is hinged to one end of a first connecting rod (9), the other end of the first connecting rod (9) is hinged to one end of a second connecting rod (10), and the other end of the second connecting rod (10) is in transmission connection with the output end of a motor (11).

4. The fluorescence detector of claim 3, wherein: the rack (7) is connected with the inner wall of one side of the detector shell (1) in a sliding mode.

5. The fluorescence detector of claim 3, wherein: the inner wall of one side of the detector shell (1) corresponds to the rack (7) and is provided with a sliding groove (8), the sliding groove (8) is a dovetail groove, and a dovetail boss embedded into the sliding groove (8) is fixed on one side, far away from the gear (6), of the rack (7).

6. The fluorescence detector of claim 1, wherein: the test tube (12) is kept away from one end of the ultraviolet light source is connected with a connecting frame (13), and the connecting frame (13) penetrates through the top of the detector shell (1) and extends outwards.

7. The fluorescence detector of claim 2, wherein: and a storage battery (15) for supplying power to the heater (4) and the ultraviolet light source is arranged in the detector shell (1).

8. A fluorescence detector according to claim 3, characterized in that: one side of detector casing (1) is provided with ultraviolet light start button (2) and heating start button (14), heating start button (14) with heater (4) with motor (11) electricity is connected, ultraviolet light start button (2) with the ultraviolet light source electricity is connected.

9. The fluorescence detector of claim 1, wherein: and each test tube seat (3) is correspondingly provided with one ultraviolet light source, or a plurality of test tubes (12) share one ultraviolet light source.

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