CN87204954U

CN87204954U - Electric heat sterilization inoculator

Info

Publication number: CN87204954U
Application number: CN 87204954
Authority: CN
Inventors: 王德祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-03-28
Filing date: 1987-03-28
Publication date: 1988-02-24

Abstract

The utility model discloses an electro-thermal sterilization inoculating instrument, which relates to a micro-organism inoculating apparatus. The utility model is composed of a sterile air-current generator, a sterile-space forming table (also as an inoculating table) and an automatic electro-thermal sterilization inoculating needle. An electro-thermal sterilization process is adopted to obtain a sterile air-current, and the sterile air-current is blown away simultaneously along all directions to be enlarged into a three-dimensional sterile space. After switched on, a stem and a ring (or a hook, etc.) of the inoculating needle can automatically and rapidly complete synchronous electro-thermal sterilization.

Description

Electric heat sterilization inoculator

The utility model relates to the microbial inoculant utensil.

At present, domestic and international existing microbial inoculant utensil comprises inoculating needle, spirit lamp, inoculation tank, transfer room and Bechtop.Shortcomings of using these inoculation utensils and inoculation method maximums are can not the contaminated solution problem, and suitable trouble, and work efficiency is low.Existing inoculating needle is a metallic rod, adorns an one metal wire at its end, curves shapes such as ring or hook.Bar and ring will burn sterilization on spirit lamp flame, usually need nearly one minute time.Inoculation tank, transfer room are to utilize ultraviolet lamp or pharmaceutical chemicals to carry out air sterilization, and be very time-consuming, and because a variety of causes air is very fast contaminated again, if when carrying out plural bacterial classification inoculation simultaneously, and easier generation interleave contamination phenomenon.Bechtop is to utilize air filtering system to purify air, but the air-flow that its produces is not a germ-free air flow, can not the contaminated solution problem, and when using, still need be equipped with spirit lamp.

Documents and materials about existing inoculation utensil and inoculation method are very many, and one piece of reference now is provided: Japanese microbe research method discussion is compiled, and Mr. Cheng Guangsheng etc. translate, and Science Press published " microbiology laboratory method " 38-40 page or leaf in 1981.

The purpose of this utility model provides a kind of electrothermal sterile inoculation instrument, is used for contaminated solution problem and improve work efficiency.No longer need spirit lamp, existing inoculation utensil such as inoculation tank.

Solution of the present utility model is that the high temperature that utilizes resistance wire energising back to produce is sterilized to air, produce germ-free air flow, force this air-flow to be blown away to all directions simultaneously then, enlarge and form a spatial sterilized space, inoculation work is promptly carried out in this space.After the bar of inoculating needle and ring are switched on by itself, finish synchronous automatic electric heating sterilization.

Characteristics of the present utility model are that the sterilization of inoculation spatial air sterilization and inoculating needle all adopts the electrothermal sterile method to carry out.Advantage is to have solved pollution problem, and pollution rate does not reach 98%-100%, and pollution rate is not more than 2%, and work efficiency improves more than the twice, saves traditional time with spirit lamp flame burning inoculating needle.Burn redly after the energising of the supporting inoculating needle of the utility model immediately, inoculation work need not pause.Save traditional time in addition with ultraviolet lamp or pharmaceutical chemicals sterilization.The utility model volume is little, and is easy to operate, and the inoculation place is not had particular requirement.

Below in conjunction with accompanying drawing the utility model is described in detail.Brief description of drawings:

The directional pattern of Fig. 1, outside view of the present utility model and germ-free air flow.

Fig. 2, the utility model wiring layout.

Fig. 3, sterilized space form platform (double as inoculation platform).

Fig. 4, inoculating needle structure iron.

Fig. 5, the utility model electric line figure.

Fig. 6, germ-free air flow producer sectional view.

The utility model is mainly by germ-free air flow generator (Fig. 6), and sterilized space forms platform (doubling as the inoculation platform) (2) and automatic electric heating disinfection inoculation pin (3) three parts form. The generation of germ-free air flow is finished by germ-free air flow generator (Fig. 6), air is carried by axial flow blower (12), enter the sterilizing chamber (7) that is positioned at heat-insulating room (10) close end through connecting chamber (11), the sterilizing chamber is made by refractory material, be evenly distributed with shape duct, a plurality of garden (8), spiral helicine resistance wire (9) is housed in duct (8), when air passes through the sterilizing chamber, thoroughly sterilized by the high temperature that resistance wire produces, germ-free air flow is flowed out by air outlet (4) then. Sterilized space forms platform (2) ((Fig. 1) (Fig. 3)) by sterilized space and forms. It is to make at an angle of 90 sheet metal is curved, comprises a horizontal plane (19) and vertical plane (20). And vertical plane (20) is than horizontal plane (19) Wide. Vertical plane (20) stops the germ-free air flow that is come out by air outlet (4), force the germ-free air flow while to both sides and blow away upward (6), (22), (21), enlarge thus and form a three-dimensional sterilized space, because germ-free air flow is blown away to all directions simultaneously, therefore, room air and dust can not enter this space. The characteristics of this sterilized space are invisible, and wall and lid are namely arranged unlike inoculating hood. Transfer needle (3) ((Fig. 4)) comprises oese, inoculation hook, transfer needle and spatula etc. The bar (15) of transfer needle (3) is made of interior porcelain tube (13) and external ceramic tube (15), inner tube (13) outside is around resistance wire (14), the ring (18) (comprising hook etc.) of transfer needle (3) is made of the double joint resistance wire, is the part of resistance wire in the circuit, forms the loop by the double joint resistance wire. After opening the power switch (17) that is contained on the handle (16), the bar (15) of transfer needle (3) and ring can be finished rapidly electrothermal sterile (18) (comprising hook etc.) synchronously. For guaranteeing safety, what transfer needle used is safe voltage.

Embodiment:

The sterilising chamber is made by refractory materials.Be a rectangular parallelepiped, horizontal usefulness, promptly longest edge as width.The shape duct, garden that uniform distribution some amount and diameter are certain.The sterilising chamber is fixed on the interior end of insulated cabinet that refractory materials is made.The insulated cabinet the other end links to each other with an aerofoil fan by connecting the chamber.Connect the chamber and made by tinned(sheet)iron, the resistance wire spirrillum that total power is certain is contained in the duct of sterilising chamber.Just the gas flow temperature in realization exit can reach and make cotton, and the degree that the burning of moments such as paper is caught fire is so that guarantee that the air-flow that obtains is the absolutesterility air-flow.Sterilized space forms platform and is made by the thick steel plate of 2.5mm.Constitute by a horizontal plane and a vertical surface.Two face angles are 90 °, and the top, angle requires the garden sliding, and vertical surface is wideer slightly than horizontal plane.After the assembling, horizontal plane can put in or withdraw from.Adjusting horizontal plane length is that 180mm(is the distance of vertical surface apart from air outlet), and fixing.After the start, realize just: apart from air outlet 50mm place, level is 0.8 meter per second to wind speed, the 180mm place, and level is 0.38 meter per second to wind speed, both sides are respectively 0.7 meter per second and 0.9 meter per second to wind speed, vertical velocity (making progress) 0.77 meter per second; The 130mm place, both sides all are 0.85 meter per second to wind speed.Just obtaining a volume is 320 * 110 * 110(mm ³) three-dimensional sterilized space.

Using method:

Connect power supply, gave heat 5 minutes.Adjusting inoculation platform length is 180mm.Take two hands of inoculating needle and test tube to lay respectively at inoculation platform both sides.The test tube mouth, bottleneck burnt sterilization at the air outlet place.Inoculate at inoculation platform end.When falling substratum and inoculation culture ware, all open the lid of culture dish, and mouth down holds and remove at the bottom of the culture dish, this is to block air-flow and the dust avoiding covering blows off in the culture dish for fear of lid.During the inoculation triangular flask, need not inoculate platform, make bottleneck and air outlet center contour.

Claims

1, a kind of electrothermal sterile inoculation instrument is different fully with existing microbial inoculant utensil, it is characterized in that by germ-free air flow producer (figure six) sterilized space forms platform (double as inoculation platform) [2] and automatic electric heating disinfection inoculation pin [3] constitutes.Aerofoil fan [12] carries air to enter the electrothermal sterile chamber [7] that is positioned at insulated cabinet [10] inner end through connecting chamber [11], through behind the electrothermal sterile, flow out germ-free air flow from air outlet [4], sterilized space forms platform [2] germ-free air flow is enlarged, and forms a spatial sterilized space.Inoculating needle [3] is after energising, and its bar [15] and ring [18] can be finished electrothermal sterile synchronously rapidly.

2, according to the described electrothermal sterile inoculation of claim 1 instrument, the electrothermal sterile chamber (7) that it is characterized in that the germ-free air flow producer is evenly distributed with the certain shape duct, garden (8) of a plurality of diameters, in these ducts (8), spiral resistance wire (9) is housed, and aerofoil fan (12) carries air to pass these ducts (8).

3,, it is characterized in that it is to make two faces that intersect at an angle of 90 with the thick steel plate of 2.5mm that sterilized space forms platform (2), promptly is made of horizontal plane (19) and vertical surface (20) according to the described electrothermal sterile inoculation of claim 1 instrument.Vertical surface (20) is wideer than horizontal plane (19), and vertical surface (20) stops the germ-free air flow that blows from air outlet (4), forces germ-free air flow simultaneously to both sides with blow away upward, enlarges spatial sterilized space of formation.When vertical surface (20) is fixed on apart from the position of air outlet (4) 180mm, apart from the level at air outlet (4) 50mm place to wind speed 0.8 meter per second.The both sides at 130mm place all are 0.85 meter per second to wind speed.180mm place (inoculation platform end) level is 0.38 meter per second to wind speed, and both sides are respectively 0.7 meter per second and 0.9 meter per second to wind speed, and vertical velocity (making progress) is 0.77 meter per second.

4, according to the described electrothermal sterile inoculation of claim 1 instrument, the bar (15) that it is characterized in that inoculating needle (3) is to be made of external ceramic tube (15) and interior porcelain tube (13).Interior porcelain tube (13) outside is around resistance wire (14) (nichrome wire), and the ring of inoculating needle (3) (or hook etc.) (18) is the part of resistance wire in the circuit, constitute by the double joint resistance wire, and be to form the loop.