Incubator for detecting bacillus cereus

Abstract

The incubator comprises an incubator body and a long connecting rod, two pairs of parallel connecting rods are installed at the upper end and the lower end of the right side wall in the incubator body respectively, the two ends of the long connecting rod are connected with the connecting rods, and two supporting rods are installed at the upper end of the long connecting rod. Four arm rods and one end of an L-shaped claw rod are mounted on the side surface of the upper end of the supporting rod; a lens is obliquely mounted at the lower left corner in the box body, a box cover is arranged at the upper end of the box body, and a transparent plate is arranged in the middle of the box cover; compared with the prior art, the inverted culture device has the beneficial effects that when inverted culture is needed, the agar plate and the long connecting rod are rotated by 180 degrees and inverted, then are inserted into the pair of connecting rods at the upper end of the right side wall in the box body, and are fixed through the fixing nuts; the culture condition, reflected by the lens, on the agar plate can be observed through the transparent plate.

Description

Technical Field

[0001] The utility model relates to the technical field of Bacillus cereus detection, in particular to an incubator for Bacillus cereus detection. Background Technique

[0002] Bacillus cereus is a Gram-positive bacillus that can form spores and belongs to the genus aerobic spore-forming bacilli. Bacillus cereus generally causes foodborne diseases, namely vomiting and diarrhea syndromes, or local infections such as orbital abscesses and intraocular inflammation. Therefore, in food inspection and testing, Bacillus cereus is a very important detection strain. When detecting Bacillus cereus, referring to the standard of "GB 4789.14-2014 Food Microbiology Examination - Examination of Bacillus cereus", multiple links such as sample treatment, sample preparation, dilution, inoculation, separation, culture, and identification are required. Among them, during separation and culture, after smearing the sample, the agar plate needs to be placed in an incubator for a period of time, and after the sample homogenate is absorbed, the agar plate is flipped and cultured in an inverted state. In this process, due to the influence of the current incubator structure, it is impossible to observe the culture situation well during inversion, and it is necessary to open the incubator to observe, which is relatively complicated and troublesome, and is easily affected by the outside world. Therefore, we propose an incubator for Bacillus cereus detection. Content of the Utility Model

[0003] The purpose of the utility model is to provide an incubator for Bacillus cereus detection to solve the problems raised in the above background technique.

[0004] An incubator for Bacillus cereus detection includes a box body and a long connecting rod. At the upper and lower ends of the right side wall inside the box body, two pairs of parallel connecting rods are respectively installed. A limit ring is arranged at the front end of the connecting rod, and a threaded part is arranged on the connecting rod in front of the limit ring. Through holes are opened at both ends of the long connecting rod, and the two through holes are respectively inserted onto two horizontally parallel connecting rods. A fixing nut is screwed onto the threaded part of the connecting rod to fix both ends of the long connecting rod on the connecting rod; two support rods are installed at the upper end of the long connecting rod, and four arm rods are installed on the side of the upper end of the support rod. Blind holes are opened in the arm rods, and one end of an L-shaped claw rod is inserted into the blind holes. A connecting spring is connected between the L-shaped claw rod and the inner bottom of the blind hole, and the connecting spring is in a compressed state;

[0005] At the bottom of the inner part of the box located at the lower ends of the two support rods, exhaust ports of exhaust pipes are provided. The pipe ends of the exhaust pipes penetrate through the box body and are connected to a connecting pipe. A vertical intake pipe is perpendicularly connected to the middle position of the connecting pipe. The upper end of the intake pipe is horizontally connected to a fan cylinder, and a fan is arranged inside the fan cylinder. A ventilation pipe is connected to the outer side of the left side wall of the box body. A lens is obliquely installed at the lower left corner inside the box body, and the lens faces the upper end of the right side wall inside the box body. A box cover is arranged at the upper end of the box body, and a transparent plate is arranged in the middle of the box cover, which is convenient for observing the situation inside the box body through the transparent plate.

[0006] Preferably, a rubber pad is arranged on the vertical claw part of the L-shaped claw rod to enhance the friction force of the vertical claw part.

[0007] Preferably, filters are arranged inside the intake pipe and the ventilation pipe to filter the air entering and exiting the box body.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0009] After the sample is coated on the agar plate, it is installed between the four arm rods at the upper end of the support rod. The agar plate is fixed by the inward pressure of the claw bodies of the four L-shaped claw rods. Then, the long connecting rod is inserted into a pair of connecting rods at the lower end of the right side wall inside the box body through the through hole, and is fixed by connecting the fixing nut to the threaded part. After that, the cultivation is carried out.

[0010] When inverted cultivation is required, the agar plate together with the long connecting rod is removed, rotated 180° and inverted, and then inserted into a pair of connecting rods at the upper end of the right side wall inside the box body and fixed by the fixing nut. When cultivating, the cultivation situation on the agar plate reflected by the lens can be observed through the transparent plate.

[0011] When needed, the fan can be powered on to make the air enter the box body after passing through the fan cylinder, the intake pipe, the connecting pipe and the exhaust pipe, increasing the oxygen concentration in the box body, improving the cultivation effect, and also maintaining the humidity inside the box body through the flow of clean air. Description of the Drawings

[0012] Figure 1 is the front view structural sectional view of the present utility model;

[0013] Figure 2 is the top view of the incubator of the present utility model.

[0014] In the figure: 1. Box body, 2. Connecting rod, 21. Limit ring, 22. Threaded part, 3. Long connecting rod, 301. Through hole, 4. Fixed nut, 5. Support rod, 6. Arm rod, 601. Blind hole, 7. Connecting spring, 8. L-shaped claw rod, 81. Rubber pad, 9. Lens, 10. Exhaust pipe, 11. Connecting pipe, 12. Air inlet pipe, 13. Fan cylinder, 14. Fan, 15. Vent pipe, 16. Filter element, 17. Box cover, 18. Transparent plate. Detailed implementation mode

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0016] See Figure 1-2 , an incubator for detecting Bacillus cereus, including a box body 1 and a long connecting rod 3. At the upper and lower ends of the right inner wall of the box body 1, two pairs of parallel connecting rods 2 are respectively installed. A limit ring 21 is arranged at the front end of the connecting rod 2. A threaded part 22 is arranged on the connecting rod 2 at the front end of the limit ring 21. Through holes 301 are opened at both ends of the long connecting rod 3. The two through holes 301 are respectively inserted into two horizontally parallel connecting rods 2. A fixed nut 4 is screwed on the threaded part 22 of the connecting rod 2 to fix both ends of the long connecting rod 3 on the connecting rod 2; two support rods 5 are installed at the upper end of the long connecting rod 3. Four arm rods 6 are installed on the side of the upper end of the support rod 5. A blind hole 601 is opened in the arm rod 6. One end of an L-shaped claw rod 8 is inserted into the blind hole 601. A connecting spring 7 is connected between the L-shaped claw rod 8 and the inner bottom of the blind hole 601, and the connecting spring 7 is in a compressed state; after the sample is spread on the agar plate, it is installed between the four arm rods 6 at the upper end of the support rod 5, and the agar plate is fixed by the inward pressure of the claw bodies of the four L-shaped claw rods 8; a rubber pad 81 is arranged on the vertical claw part of the L-shaped claw rod 8 to increase the friction of the vertical claw part.

[0017] At the inner bottom of the box body 1 at the lower ends of the two support rods 5, exhaust ports of exhaust pipes 10 are provided. The pipe ends of the exhaust pipes 10 penetrate through the box body 1 and are connected to a connecting pipe 11. A vertical inlet pipe 12 is connected to the middle position of the connecting pipe 11. The upper end of the inlet pipe 12 is horizontally connected to a fan cylinder 13, and a fan 14 is arranged inside the fan cylinder 13. An air pipe 15 is connected to the outside of the left side wall of the box body 1. Filter elements 16 are arranged inside the inlet pipe 12 and the air pipe 15 to filter the air entering and leaving the box body 1. A lens 9 is obliquely installed at the lower left corner inside the box body 1, and the lens 9 faces the upper end of the right side wall inside the box body 1. When culturing, the culture situation on the agar plate can be observed through the lens 9. A box cover 17 is arranged at the upper end of the box body 1, and a transparent plate 18 is arranged in the middle of the box cover 17, which is convenient to observe the situation inside the box body 1 through the transparent plate 18.

[0018] Working principle: After the sample is coated on the agar plate, it is installed between the four arm rods 6 at the upper ends of the support rods 5. The agar plate is fixed by the inward pressure of the claw bodies of the four L-shaped claw rods 8. Then, the long connecting rod 3 is inserted into a pair of connecting rods 2 at the lower end of the right side wall inside the box body 1 through the through hole 301, and is fixed by connecting the fixing nut 4 to the threaded part 22. Then, the culture is carried out.

[0019] During inverted culture, the agar plate together with the long connecting rod 3 is removed, rotated 180° and inverted, and then inserted into a pair of connecting rods 2 at the upper end of the right side wall inside the box body 1 and fixed by the fixing nut 4. When culturing, the culture situation on the agar plate reflected by the lens 9 is observed through the transparent plate 18. When culturing, the fan 14 is powered on, so that air enters the box body 1 after passing through the fan cylinder 13, the inlet pipe 12, the connecting pipe 11 and the exhaust pipe 10, increasing the oxygen concentration inside the box body 1 and improving the culture effect.

[0020] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0021] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A culture box for detecting Bacillus cereus, comprising a box body (1) and a long connecting rod (3), characterized in that: Two pairs of parallel connecting rods (2) are respectively installed at the upper and lower ends of the right side wall of the box body (1), and a limit ring (21) is provided at the front end of the connecting rod (2). A threaded portion (22) is provided on the connecting rod (2) at the front end of the limit ring (21). Through holes (301) are provided at both ends of the long connecting rod (3), and the two through holes (301) are respectively inserted into two transversely parallel connecting rods (2), and a fixing nut (4) is screwed on the threaded portion (22) of the connecting rod (2); two support rods (5) are installed at the upper end of the long connecting rod (3), and four arm rods (6) are installed on the upper side of the support rod (5), and a blind hole (601) is provided in the arm rod (6), and one end of an L-shaped claw rod (8) is inserted into the blind hole (601), and a connecting spring (7) is connected between the L-shaped claw rod (8) and the bottom of the blind hole (601); The bottom of the box body (1) located at the lower ends of the two support rods (5) is provided with an exhaust port of an exhaust pipe (10), the pipe end of the exhaust pipe (10) passes through the box body (1) and is connected to a connecting pipe (11), the middle position of the connecting pipe (11) is vertically connected to an air intake pipe (12), the upper end of the air intake pipe (12) is horizontally connected to a fan tube (13), and a fan (14) is arranged in the fan tube (13); the left side wall of the box body (1) is connected to a ventilation pipe (15), the lower left corner of the box body (1) is obliquely installed with a lens (9), and the lens (9) faces the upper end of the right side wall of the box body (1); the upper end of the box body (1) is provided with a box cover (17), and a transparent plate (18) is arranged in the middle of the box cover (17).

2. The incubator for detecting Bacillus cereus according to claim 1, characterized in that: A rubber pad (81) is provided on the vertical claw portion of the L-shaped claw rod (8).

3. The incubator for detecting Bacillus cereus according to claim 1, characterized in that: A filter element (16) is arranged in the air intake pipe (12) and the ventilation pipe (15).

Images