CN211315907U

CN211315907U - Knob type multiband LED (light-emitting diode) down-emission fluorescent lighting device

Info

Publication number: CN211315907U
Application number: CN201922358440.5U
Authority: CN
Inventors: 陶成龙; 苏成康
Original assignee: Guangzhou Haokang Biotechnology Co ltd
Current assignee: Guangzhou Haokang Biotechnology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-21
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a knob formula multiband LED falls and penetrates fluorescence lighting device includes casing, knob subassembly and two at least parallel arrangement's fluorescence lighting assembly, fluorescence lighting assembly includes micro-gap switch, LED lamp pearl, first condensing lens, second condensing lens, arouses the optical filter, launches optical filter and dichroic mirror, the knob subassembly is including rotating knob, driving gear, driven gear, rotation lead screw, screw-nut, slider, connection piece. The utility model makes the driving gear drive the driven gear to rotate by rotating the rotating knob, and the driven gear drives the lead screw to rotate, thereby making the lead screw nut and the touch piece reciprocate, and the touch piece touches the micro-switches of different fluorescent lighting components to control the LED lamp beads to be opened or closed, thereby realizing the switching of fluorescent channels; the design can save the installation space required by the fluorescent lighting device on the loading microscope, and the fluorescent lighting device is more suitable for human engineering, more efficient and more comfortable for a user to use.

Description

Knob type multiband LED (light-emitting diode) down-emission fluorescent lighting device

Technical Field

The utility model relates to a microscope technical field, in particular to knob formula multiband LED downlight fluorescence lighting device.

Background

A fluorescence microscope is a new type of microscope that performs microscopic observation by using the principle that a substance generates light of a specific wavelength when irradiated with light of a specific wavelength. The fluorescence microscope can perform fluorescence observation while keeping the functions of different microscopes, has the characteristics of high detection capability and capability of performing multiple coloring observation, and is widely applied to the research fields of biology, cytology, oncology, immunology, geology and the like.

Fluorescence microscopes can be divided into epifluorescence microscopes and transmission fluorescence microscopes according to the illumination mode, and epifluorescence microscopes are widely used because they can be adapted to observation of samples under different conditions. The epi-fluorescence microscope consists of a common optical microscope and a fluorescence lighting device, wherein the fluorescence lighting device is a key component of the fluorescence microscope and is of great importance in the overall design; the absorption spectrum of the fluorescent probe for detecting the sample label is considered, and the use simplicity of the instrument is considered. At present, mercury lamps are the most commonly used light source for fluorescence microscopes, but have the disadvantages of complicated operation, short service life, heat radiation, high price and the like. The novel cold light source LED has the advantages of long service life, small heat, instant use, continuously adjustable brightness and the like, and can be used for overcoming the defects of a mercury lamp light source, so that an LED epi-fluorescence illuminating device is needed to be provided to reduce the use cost of a fluorescence microscope and improve the operation simplicity of the fluorescence microscope.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a knob formula multiband LED falls to penetrate fluorescence lighting device to solve above-mentioned technical problem.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a knob type multiband LED (light-emitting diode) down-emission fluorescent lighting device comprises a shell, a knob assembly and at least two fluorescent lighting assemblies arranged in parallel, wherein the shell is hollow, a fixed sliding seat, a guide rail, a touch sheet and two lead screw fixing seats are arranged in the shell, the guide rail is fixed in the shell, the fixed sliding seat is arranged on the guide rail and is in sliding fit with the guide rail, a lamp bead mounting seat is arranged on the fixed sliding seat, the touch sheet is fixed in the shell and is positioned on one side of the lamp bead mounting seat, and a power supply interface is arranged on the side wall of the shell; the fluorescent lighting assembly comprises a microswitch, an LED lamp bead, a first condenser, a second condenser, an excitation filter, an emission filter and a dichroic mirror, the microswitch is installed on one side wall of the lamp bead installation seat, an elastic sheet of the microswitch is matched with the touch sheet, the LED lamp bead is installed on the other side wall of the lamp bead installation seat, the LED lamp bead is electrically connected with the microswitch, the microswitch is electrically connected with an external power supply through a power supply interface, the light outlet end of the LED lamp bead faces the first condenser, the second condenser, the excitation filter, the dichroic mirror and the emission filter are sequentially arranged on the fixed sliding seat, the dichroic mirror inclines towards one side of the emission filter, and the emission filter is located below the dichroic mirror; the knob assembly comprises a rotating knob, a driving gear, a driven gear, a rotating screw rod, a screw rod nut, a sliding block and a connecting sheet; the rotary knob is rotatably installed on the side wall of the shell, one end of the rotary knob penetrates through the side wall of the shell and is fixedly connected with the driving gear, the driven gear is sleeved on the rotary screw rod and is fixedly connected with the rotary screw rod, the driven gear is meshed with the driving gear, two ends of the rotary screw rod are respectively rotatably arranged on the screw rod fixing seat, the screw nut sleeve is arranged on the rotary screw rod and is in threaded connection with the rotary screw rod, the slider is fixedly connected with the screw rod in a threaded mode, the sliding sleeve is arranged on the rotary screw rod, one end of the connecting piece is fixedly connected with the slider, and the other end of the connecting piece is fixedly connected with the lamp bead installing seat.

As the preferred scheme of the utility model, the quantity of fluorescence lighting components is three, and the LED lamp pearl of three fluorescence lighting components is B-LED lamp pearl, UV-LED lamp pearl, G-LED lamp pearl respectively.

As a preferred embodiment of the present invention, the radius of the driving gear is larger than the radius of the driven gear.

As the utility model discloses a preferred scheme, be provided with power master switch and switch cap on the casing, power master switch with external power source electric connection.

As the utility model discloses a preferred scheme, be provided with the guide rail in the casing, fixed slide set up in on the guide rail and with guide rail sliding fit.

As the utility model discloses an optimal scheme, the center of first condensing lens, second condensing lens, excitation filter, dichroic mirror and emission filter with the optical axis of LED lamp pearl is on same straight line.

As the preferred scheme of the utility model, be provided with the radiator in the lamp pearl mount pad.

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

the utility model discloses creatively change the mode of switching fluorescence passageway into the rotation type from traditional pull rod formula, through rotatory rotation knob, make the driving gear drive driven gear rotatory, driven gear drives the rotation of lead screw, drives fixed slide reciprocating motion on the guide rail through screw-nut, slider and connection piece, and then makes the contact piece contact the micro-gap switch's of different fluorescence lighting components shell fragment to control opening or closing of LED lamp pearl, realize the switching of fluorescence passageway; the rotary design can save the installation space required by the fluorescent lighting device on the loading microscope, and is more in accordance with human engineering, more efficient and more comfortable for a user to use.

Drawings

The following describes the present invention with reference to the accompanying drawings. It is to be noted herein that the accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of the embodiments of the invention for the purpose of illustration and not for the purpose of limitation.

Fig. 1 is a perspective view of a knob-type multiband LED downlight illumination device according to the present invention;

FIG. 2 is a top view of the knob type multiband LED epi-fluorescent lighting device provided by the present invention after the dichroic mirror is removed;

fig. 3 is a front view of the knob type multiband LED epi-fluorescent lighting device provided by the present invention.

In the figure, 1-shell, 11-fixed slide, 12-lead screw fixed seat, 13-lamp bead mounting seat, 14-power interface, 15-power main switch, 16-power switch cap, 17-guide rail, 18-touch sheet, 2-knob component, 21-rotation knob, 22-driving gear, 23-driven gear, 24-rotation lead screw, 25-lead screw nut, 26-slide block, 27-connection sheet, 3-fluorescence lighting component, 31-microswitch, 32-LED lamp bead, 33-first condenser, 34-second condenser, 35-excitation filter, 36-emission filter and 37-dichroic mirror.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-2, the utility model provides a knob formula multiband LED drop fluorescent lighting device, including casing 1, knob subassembly 2 and at least two parallel arrangement's fluorescent lighting subassembly 3, the inside cavity of casing 1 is provided with fixed slide 11, guide rail 17, touch piece 18 and two lead screw fixing bases 12 in the casing 1, guide rail 17 is fixed in casing 1, fixed slide 11 sets up on guide rail 17 and with guide rail 17 sliding fit, be provided with lamp pearl mount pad 13 on the fixed slide 11, touch piece 18 is fixed in casing 1 and is located one side of lamp pearl mount pad 13, be provided with power source 14 on the lateral wall of casing 1; the fluorescent lighting assembly 3 comprises a microswitch 31, an LED lamp bead 32, a first collecting lens 33, a second collecting lens 34, an excitation filter lens 35, an emission filter lens 36 and a dichroic mirror 37, wherein the microswitch 31 is installed on one side wall of the lamp bead installation seat 13, a spring sheet of the microswitch 31 is matched with the touch sheet 18, the LED lamp bead 32 is installed on the other side wall of the lamp bead installation seat 13, the LED lamp bead 32 is electrically connected with the microswitch 31, the microswitch 31 is electrically connected with an external power supply through a power supply interface 14, the light outlet end of the LED lamp bead 32 faces to the first collecting lens 33, the second collecting lens 34, the excitation filter lens 35, the dichroic mirror 37 and the emission filter lens 36 are sequentially arranged on the fixed slide seat 11, the dichroic mirror 37 inclines to one side of the emission filter lens 36, and the emission filter lens 36 is positioned below the dichroic mirror 37; the knob component 2 comprises a rotary knob 21, a driving gear 22, a driven gear 23, a rotary screw rod 24, a screw rod nut 25, a slide block 26 and a connecting sheet 27; the rotary knob 21 is rotatably mounted on the side wall of the shell 1, one end of the rotary knob 21 penetrates through the side wall of the shell 1 and is fixedly connected with the driving gear 22, the driven gear 23 is sleeved on the rotary screw rod 24 and is fixedly connected with the rotary screw rod 24, the driven gear 23 is meshed with the driving gear 22, two ends of the rotary screw rod 24 are respectively rotatably arranged on the screw rod fixing seat 12, the screw rod nut 25 is sleeved on the rotary screw rod 24 and is in threaded connection with the rotary screw rod 24, the sliding block 26 is fixedly connected with the screw rod nut 25 and is slidably sleeved on the rotary screw rod 24, one end of the connecting sheet 27 is fixedly connected with the screw rod nut 25, and the other end of the connecting sheet 27 is; the driving gear 22 drives the driven gear 23 to rotate by rotating the rotary knob 21, the driven gear 23 drives the screw rod to rotate, the screw rod nut 25, the sliding block 26 and the connecting sheet 27 drive the fixed sliding seat 11 to reciprocate on the guide rail 17, and the micro switch 31 of different fluorescent lighting assemblies 3 is triggered by the trigger sheet 18, so that the on/off of different LED lamp beads is controlled, and the switching of fluorescent channels is realized; therefore, the utility model discloses to switch the mode of fluorescence passageway and change the rotation type into by traditional pull rod formula, not only can practice thrift the installation space that fluorescence lighting device loading microscope needed, more accord with human engineering moreover, it is more high-efficient, let the user use more comfortable.

Specifically, the number of the fluorescent lighting assemblies 3 is three, and the LED lamp beads 32 of the three fluorescent lighting assemblies 3 are respectively a B-LED lamp bead 32, a UV-LED lamp bead 32 and a G-LED lamp bead 32; a radiator is arranged in the lamp bead mounting seat 13. According to the invention, the LED lamp beads 32 of the three fluorescent lighting assemblies 3 are arranged on the same lamp bead mounting seat 13, and the heat is conducted by adopting the heat radiator in the lamp bead mounting seat 13, so that a relatively independent installation mode is designed, the number of the heat radiators can be reduced, the cost is reduced, the installation space can be reduced, the equipment volume is reduced, and the use is more convenient.

Specifically, the radius of the driving gear 22 is larger than that of the driven gear 23.

Specifically, the casing 1 is provided with a power supply main switch 15 and a power supply switch cap 16, and the power supply main switch 15 is electrically connected with an external power supply.

Specifically, the centers of the first condenser 33, the second condenser 34, the excitation filter 35, the dichroic mirror 37, and the emission filter 36 are on the same line with the optical axis of the LED bead 32.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A knob type multiband LED (light-emitting diode) down-emission fluorescent lighting device is characterized by comprising a shell, a knob assembly and at least two fluorescent lighting assemblies arranged in parallel, wherein the shell is hollow, a fixed sliding seat, a guide rail, a touch sheet and two lead screw fixing seats are arranged in the shell, the guide rail is fixed in the shell, the fixed sliding seat is arranged on the guide rail and is in sliding fit with the guide rail, a lamp bead mounting seat is arranged on the fixed sliding seat, the touch sheet is fixed in the shell and is positioned on one side of the lamp bead mounting seat, and a power supply interface is arranged on the side wall of the shell; the fluorescent lighting assembly comprises a microswitch, an LED lamp bead, a first condenser, a second condenser, an excitation filter, an emission filter and a dichroic mirror, the microswitch is installed on one side wall of the lamp bead installation seat, an elastic sheet of the microswitch is matched with the touch sheet, the LED lamp bead is installed on the other side wall of the lamp bead installation seat, the LED lamp bead is electrically connected with the microswitch, the microswitch is electrically connected with an external power supply through a power supply interface, the light outlet end of the LED lamp bead faces the first condenser, the second condenser, the excitation filter, the dichroic mirror and the emission filter are sequentially arranged on the fixed sliding seat, the dichroic mirror inclines towards one side of the emission filter, and the emission filter is located below the dichroic mirror; the knob assembly comprises a rotating knob, a driving gear, a driven gear, a rotating screw rod, a screw rod nut, a sliding block and a connecting sheet; the rotary knob is rotatably installed on the side wall of the shell, one end of the rotary knob penetrates through the side wall of the shell and is fixedly connected with the driving gear, the driven gear is sleeved on the rotary screw rod and is fixedly connected with the rotary screw rod, the driven gear is meshed with the driving gear, two ends of the rotary screw rod are respectively rotatably arranged on the screw rod fixing seat, the screw nut sleeve is arranged on the rotary screw rod and is in threaded connection with the rotary screw rod, the slider is fixedly connected with the screw rod in a threaded mode, the sliding sleeve is arranged on the rotary screw rod, one end of the connecting piece is fixedly connected with the slider, and the other end of the connecting piece is fixedly connected with the lamp bead installing seat.

2. The knob type multiband LED epi-fluorescent lighting device according to claim 1, wherein the number of the fluorescent lighting assemblies is three, and the LED lamp beads of the three fluorescent lighting assemblies are respectively a B-LED lamp bead, a UV-LED lamp bead and a G-LED lamp bead.

3. The knob type multiband LED downlight illumination device of claim 1, wherein the radius of the driving gear is larger than the radius of the driven gear.

4. The knob type multiband LED epi-fluorescent lighting device according to claim 1, wherein a main power switch and a power switch cap are disposed on the housing, and the main power switch is electrically connected to the external power source.

5. The knob-type multiband LED epi-fluorescence lighting device according to claim 1, wherein centers of the first condenser, the second condenser, the excitation filter, the dichroic mirror, and the emission filter are collinear with an optical axis of the LED bead.

6. The knob-type multiband LED downlight fluorescent lighting device of claim 1, wherein a heat sink is disposed within the lamp bead mounting base.