CN213903947U

CN213903947U - Microscopic observation device for detecting harmful microorganisms in food

Info

Publication number: CN213903947U
Application number: CN202023208480.0U
Authority: CN
Inventors: 吴海青; 李彬; 吴杰
Original assignee: Jiangsu Fasite Food Safety Technology Service Co ltd
Current assignee: Jiangsu Fasite Food Safety Technology Service Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-06
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to the technical field of food microorganism detection, in particular to a microscopic observation device for detecting food harmful microorganisms, which comprises a microscope base, wherein the upper end of the microscope base is fixedly connected with a microscope arm, one side of the lower end of the microscope arm is fixedly connected with a reflector, one side of the upper end of the microscope arm is fixedly connected with a lens cone, the lower end of the lens cone is fixedly connected with an objective lens, the upper side of the lower end of the microscope arm is fixedly connected with a fixed platform, the bottom of the fixed platform is movably connected with a light chopper, one end of the bottom of the fixed platform is provided with a round hole, the microscopic observation device is internally provided with a carrying platform at the upper end of the fixed platform, the objective table can rotate in the fixed table through the rotating wheel, four groups of pressing sheet clamps are arranged on the upper side of the objective table, the four samples can be simultaneously installed, and when the sample microscope is used, the sample needing to be observed can be selected by rotating the objective table, is rotated to be right below the objective lens, and then is observed.

Description

Microscopic observation device for detecting harmful microorganisms in food

Technical Field

The utility model relates to a food microbiological detection technical field specifically is a microscopic observation device that food harmful microorganism detected usefulness.

Background

The food microorganism detection is a detection method which uses the theory and method of microbiology to detect the type, quantity, property and influence of the microorganism in the food on the human health so as to judge whether the food meets the quality standard. The microscope that current food microbiological detection used is general all ordinary microscope commonly used by people, need press from both sides the slide glass that is equipped with the sample on the objective table during the detection, then adjusts eyepiece and objective and observes the sample, but every sample that detects of this kind of microscope just must begin the installation operation from the beginning, and is very troublesome, secondly, because only can observe a sample at every turn, so can not carry out the comparison to a plurality of samples, for this reason, the utility model provides a microscopic observation device that food harmful microbiological detection used is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a micro-observation device of food harmful microorganism detection usefulness to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a microscopic observation device for detecting harmful microorganisms in food comprises a lens base, wherein a lens arm is fixedly connected to the upper end of the lens base, a reflector is fixedly connected to one side of the lower end of the lens arm, a lens barrel is fixedly connected to one side of the upper end of the lens arm, an objective lens is fixedly connected to the lower end of the lens barrel, a fixed table is fixedly connected to the upper side of the lower end of the lens arm, a light chopper is movably connected to the bottom of the fixed table, a round hole is formed in one end of the bottom of the fixed table, an object stage is arranged in the upper end of the fixed table, a rotating wheel is fixedly connected to the middle of the side wall of the object stage, clamping blocks are fixedly connected to two ends of the side wall of the object stage, the rotating wheel and the clamping blocks are arranged into an integral structure, clamping grooves are formed in two ends of the upper side and the lower side of the clamping blocks, balls are arranged in the clamping grooves, and sliding grooves are formed in the inner walls of the upper side and the lower side of the fixed table, the fixture block is clamped into the sliding groove and is rotatably connected with the sliding groove, the ball is in rolling connection with the sliding groove, four groups of pressing sheet clamps are symmetrically distributed at the edge of the top of the objective table, and a light through hole is formed in the middle of each pressing sheet clamp.

Preferably, the upper end fixedly connected with of mirror arm is carefully accurate to focus the spiral, the top of carefully accurate focus spiral is provided with thick accurate focus spiral, thick accurate focus spiral and mirror arm fixed connection.

Preferably, a plurality of light holes are equidistantly formed in the edge of the light shield, and the size of each light hole is different.

Preferably, a through hole is formed in the middle of the side wall of the fixing table, and the rotating wheel penetrates through the through hole and extends out of the fixing table.

Preferably, the rotating wheel is located in the middle of the clamping blocks at the two ends of the object stage, and the two clamping blocks are symmetrically distributed on the side wall of the object stage relative to the rotating wheel.

Preferably, the light through hole, the round hole and the light transmitting hole are positioned on the same straight line, and the objective lens is positioned right above the light through hole.

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

1. the microscopic observation device is characterized in that an object stage is arranged in the upper end of a fixed table, the object stage can rotate in the fixed table through a rotating wheel, four groups of pressing sheet clamps are arranged on the upper side of the object stage, four samples can be simultaneously arranged, when the microscopic observation device is used, the object stage can be rotated to select the sample to be observed, the sample is rotated to be under an objective lens, and then the sample is observed;

2. the microscopic observation device can change the observed object at will without repeated disassembly and installation of samples, thereby saving a large amount of time, and the device can carry out comparative analysis on a plurality of samples by switching the observation object, and is more practical.

Drawings

FIG. 1 is a schematic structural view of a microscopic observation device of the present invention;

FIG. 2 is a schematic view of the objective table of the present invention;

fig. 3 is a schematic view of the connection structure between the fixture block and the fixing platform of the present invention.

In the figure: the lens comprises a lens base 1, a lens arm 2, a reflective mirror 3, a lens barrel 4, a fine focusing screw 5, a coarse focusing screw 6, an objective lens 7, a fixed table 8, a light chopper 9, a light hole 10, a round hole 11, an objective table 12, a rotating wheel 13, a fixture block 14, a clamping groove 15, a ball 16, a sliding groove 17, a tabletting clamp 18 and a light through hole 19.

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 to 3, the present invention provides a technical solution: a microscopic observation device for detecting harmful microorganisms in food comprises a lens base 1, a lens arm 2 is fixedly connected to the upper end of the lens base 1, a reflector 3 is fixedly connected to one side of the lower end of the lens arm 2, a lens barrel 4 is fixedly connected to one side of the upper end of the lens arm 2, an objective lens 7 is fixedly connected to the lower end of the lens barrel 4, a fine quasi-focusing spiral 5 is fixedly connected to the upper end of the lens arm 2, a coarse quasi-focusing spiral 6 is arranged above the fine quasi-focusing spiral 5, the coarse quasi-focusing spiral 6 is fixedly connected with the lens arm 2, a fixed platform 8 is fixedly connected to the upper side of the lower end of the lens arm 2, a light chopper 9 is movably connected to the bottom of the fixed platform 8, a plurality of light transmission holes 10 are equidistantly arranged at the edge of the light chopper 9, each light transmission hole 10 is different in size, a round hole 11 is arranged at one end of the bottom of the fixed platform 8, an object stage 12 is arranged inside the upper end of the fixed platform 8, the object stage 12 can rotate inside the fixed platform 8 through a rotating wheel 13, a rotating wheel 13 is fixedly connected to the middle of the side wall of the object stage 12, a through hole is formed in the middle of the side wall of the fixed stage 8, the rotating wheel 13 penetrates through the through hole and extends out of the fixed stage 8, two ends of the side wall of the object stage 12 are fixedly connected with clamping blocks 14, the object stage 12, the rotating wheel 13 and the clamping blocks 14 are arranged into an integral structure, the rotating wheel 13 is positioned in the middle of the clamping blocks 14 at the two ends of the object stage 12, the two clamping blocks 14 are symmetrically distributed on the side wall of the object stage 12 about the rotating wheel 13, clamping grooves 15 are formed in the two ends of the upper side and the lower side of each clamping block 14, balls 16 are arranged in the clamping grooves 15, sliding grooves 17 are formed in the inner walls of the upper side and the lower side of the fixed stage 8, the clamping blocks 14 are clamped in the sliding grooves 17 and rotatably connected with the sliding grooves 17, the rolling balls 16 are in rolling connection with the sliding grooves 17, four groups of clamping piece clamps 18 are symmetrically distributed at the edge of the top of the object stage 12, four samples can be simultaneously installed, and when the object stage 12 is used, samples to be observed, the glass slide is transferred to the position right below an objective lens 7 and then observed, a light through hole 19 is formed in the middle of each group of pressing clips 18, the light through hole 19, a round hole 11 and a light through hole 10 are positioned on the same straight line, the objective lens 7 is positioned right above the light through hole 19, food samples are placed on glass slides, the glass slides are clamped on the upper side of an objective table 12 through the pressing clips 18, after the four glass slides are installed, a rotating wheel 13 is rotated, one sample is moved to the position right below the objective lens 7, the light through hole 19 is communicated with the round hole 11 on a fixed table 8, then the height of the lens barrel 4 is adjusted through a coarse focusing screw 6 and a fine focusing screw 5, the visual field in an eyepiece becomes clear, observation can be carried out, the rotating wheel 13 can be rotated after observation is finished, the second sample is moved to the position right below the objective lens 7, the coarse focusing screw 6 and the fine focusing screw 5 are adjusted again to adjust the height of the lens barrel 4, the visual field in the ocular lens becomes clear, and the remaining two samples are observed according to the steps after the observation is good.

The working principle is as follows: when the microscopic observation device is used, firstly, a food sample is placed on a glass slide, then the glass slide is clamped on the upper side of an objective table 12 through a slide clamp 18, after four glass slides are installed, a rotating wheel 13 is rotated, one sample is moved to the position under an objective lens 7, a light-passing hole 19 is communicated with a round hole 11 on a fixed table 8, then the height of a lens cone 4 is adjusted through a coarse focusing screw 6 and a fine focusing screw 5, so that the visual field in the eyepiece becomes clear and can be observed, after the observation is finished, the rotating wheel 13 can be rotated, a second sample is moved to the position under the objective lens 7, the height of the lens cone 4 is adjusted through the coarse focusing screw 6 and the fine focusing screw 5 again, so that the visual field in the eyepiece becomes clear, and after the observation is finished, the remaining two samples are observed according to the steps; this microscopic observation device has installed an objective table 12 in the upper end internally mounted of fixed station 8, this objective table 12 can rotate in fixed station 8 inside through rotating swiveling wheel 13, four group's pressure piece clamps 18 are installed to the upside of objective table 12, can install four samples simultaneously, can select the sample that needs to observe through rotating objective table 12 during the use, with it under to objective 7, then observe it, the object of change observation that this microscopic observation device can be random, need not repeated dismantlement and installation sample, save a large amount of time, and this device can carry out comparative analysis to a plurality of samples through switching the observation object, and is more practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A microscopic observation device for detecting harmful microorganisms in food comprises a microscope base (1) and is characterized in that: the lens holder is characterized in that a lens arm (2) is fixedly connected to the upper end of the lens base (1), a reflector (3) is fixedly connected to one side of the lower end of the lens arm (2), a lens barrel (4) is fixedly connected to one side of the upper end of the lens arm (2), an objective lens (7) is fixedly connected to the lower end of the lens barrel (4), a fixed table (8) is fixedly connected to the upper side of the lower end of the lens arm (2), a light chopper (9) is movably connected to the bottom of the fixed table (8), a round hole (11) is formed in one end of the bottom of the fixed table (8), an objective table (12) is arranged inside the upper end of the fixed table (8), a rotating wheel (13) is fixedly connected to the middle of the side wall of the objective table (12), clamping blocks (14) are fixedly connected to two ends of the side wall of the objective table (12), and the objective table (12), the rotating wheel (13) and the clamping blocks (14) are arranged into an integral structure, draw-in groove (15) have all been seted up at the both ends on the upper and lower both sides of fixture block (14), the inside of draw-in groove (15) is provided with ball (16), spout (17) have all been seted up to the upper and lower both sides inner wall of fixed station (8), fixture block (14) card is advanced the inside of spout (17) and is rotated with spout (17) and is connected, ball (16) and spout (17) roll connection, the top edge symmetric distribution of objective table (12) has four group's wafer clamps (18), every group wafer clamp (18) the centre has all been seted up logical unthreaded hole (19).

2. The microscopic observation apparatus for detecting harmful microorganisms in food according to claim 1, characterized in that: the upper end fixedly connected with of mirror arm (2) is carefully accurate burnt spiral (5), the top of carefully accurate burnt spiral (5) is provided with thick accurate burnt spiral (6), thick accurate burnt spiral (6) and mirror arm (2) fixed connection.

3. The microscopic observation apparatus for detecting harmful microorganisms in food according to claim 1, characterized in that: a plurality of light holes (10) are formed in the edge of the light chopper (9) at equal intervals, and the size of each light hole (10) is different.

4. The microscopic observation apparatus for detecting harmful microorganisms in food according to claim 1, characterized in that: the lateral wall middle part of fixed station (8) is opened there is the through-hole, swiveling wheel (13) run through the through-hole and stretch out to the outside of fixed station (8).

5. The microscopic observation apparatus for detecting harmful microorganisms in food according to claim 1, characterized in that: the rotating wheel (13) is positioned in the middle of clamping blocks (14) at two ends of the object stage (12), and the two clamping blocks (14) are symmetrically distributed on the side wall of the object stage (12) relative to the rotating wheel (13).

6. The microscopic observation apparatus for detecting harmful microorganisms in food according to claim 1, characterized in that: the light through hole (19), the round hole (11) and the light transmitting hole (10) are located on the same straight line, and the objective lens (7) is located right above the light through hole (19).