CN-224227059-U - Anti-drip improved suction tube for colony observation

Abstract

The utility model discloses an improved suction tube for colony observation, which is drip-proof, and belongs to the field of suction tubes. The utility model relates to an improved anti-dripping bacterial colony observation straw which comprises a straw body, wherein an auxiliary feeding hole is formed in the outer surface of the straw body, an extension pipe is arranged at one end of the auxiliary feeding hole, the improved anti-dripping bacterial colony observation straw further comprises a U-shaped pipe, the U-shaped pipe is arranged at one end of the extension pipe far away from the auxiliary feeding hole, a conical pipe is arranged at the lower end of the straw body, a main feeding hole is formed in one end of the conical pipe, a blocking ball is arranged in the main feeding hole, and a rectangular groove is formed in the outer surface of the blocking ball. The utility model solves the problems that one end of the existing straw is provided with a section of thin straw which is thinner in diameter and bends back and forth up and down in order to prevent dripping, and the thinner straw is exposed outside and is easy to break although the thin straw in the shape can achieve the purpose of preventing dripping by reducing the liquid level difference of liquid in the thin straw.

Inventors

• DAI YUANYUAN
• CHEN JING
• XIE XIAOHUA
• AN XIAOTING
• ZHANG ZITONG
• LIU YUJIE

Assignees

• 滁州职业技术学院

Dates

Publication Date

20260512

Application Date

20250605

Claims (6)

1. 1. An improved anti-dripping suction tube for colony observation comprises a suction tube (1), wherein an auxiliary feeding hole (10) is formed in the outer surface of the suction tube (1), and an extension tube (11) is arranged at one end of the auxiliary feeding hole (10); The novel feeding device is characterized by further comprising a U-shaped pipe (12), wherein the U-shaped pipe (12) is arranged at one end, far away from the auxiliary feeding hole (10), of the extension pipe (11), a conical pipe (6) is arranged at the lower end of the suction pipe (1), a main feeding hole (7) is formed in one end of the conical pipe (6), a blocking ball (8) is arranged in the main feeding hole (7), and a rectangular groove (9) is formed in the outer surface of the blocking ball (8).
2. 2. An improved drip-proof pipette for colony observation as defined in claim 1, wherein the pipette (1) is provided with a connecting block (2) at the upper end far from the conical tube (6), and the connecting block (2) is in threaded connection with the pipette (1).
3. 3. An improved drip-proof pipette for observing colony as defined in claim 2, wherein the connecting block (2) is provided with a pressing air bag (3).
4. 4. The improved anti-dripping suction tube for colony observation according to claim 3, wherein the grip (4) is arranged on the outer surface of the connecting block (2), and the grip (4) and the connecting block (2) are integrally arranged.
5. 5. The improved anti-dripping suction tube for colony observation according to claim 4, wherein the handle (4) is provided with a through hole (5), and the through hole (5) and the handle (4) are integrally arranged.
6. 6. The improved anti-dripping pipette for colony observation as defined in claim 1, wherein the U-shaped tube (12) is provided with an auxiliary discharging hole (13) at one end far away from the extension tube (11).

Description

Anti-drip improved suction tube for colony observation Technical Field The utility model relates to the field of pipettes, in particular to an improved pipette for colony observation, which is drip-proof. Background Bacterial culture is a technique in which bacteria are grown and propagated by an artificial method. Bacteria are extremely widely distributed in nature, large in quantity and various in variety, and can benefit mankind and also become a cause of pathogenicity. Most bacteria can be cultured by artificial means, i.e. they are inoculated onto a medium and allowed to grow and reproduce. The cultured bacteria are used for research, identification and application; Chinese patent publication No. CN215534421U discloses an anti-drip fingertip blood suction tube, including fingertip blood capillary section, straw section and pressing air bag, fingertip blood capillary section passes through straw section intercommunication pressing air bag, fingertip blood capillary section is the upper and lower back and forth crooked form, be provided with ventilative aperture on the pressing air bag. Compared with the prior art, the anti-dripping fingertip blood suction tube reduces the liquid level difference of a blood sample by bending the capillary part back and forth up and down (even if a part with a certain liquid level difference is smaller, the tension of blood on the tube wall can overcome the gravity), and under the form, when the blood is sampled, no matter the small hole of the upper bag is closed or not, the blood can not drip in the transferring process after the blood sampling is finished, and the anti-dripping fingertip blood suction tube is safe and reliable. One end of the straw of the patent is provided with a section of thin straw which is thinner in diameter and bends back and forth up and down in order to prevent dripping, and the thin straw is exposed outside and is easy to break although the thin straw in the shape can achieve the purpose of preventing dripping by reducing the liquid level difference of the liquid in the thin straw. Disclosure of utility model The utility model aims to provide an improved anti-dripping colony observation straw, which is characterized in that an auxiliary feeding hole is formed in the outer surface of the straw, an extension pipe is arranged at one end of the auxiliary feeding hole extending to the inner wall of the straw, a U-shaped pipe is arranged at one end of the extension pipe far away from the auxiliary feeding hole, an auxiliary discharging hole is formed in one end of the U-shaped pipe far away from the extension pipe, a conical pipe is arranged at the lower end of the straw, a main feeding hole is formed in the lower end of the conical pipe, a blocking ball is arranged on the inner wall of the conical pipe at a position corresponding to the main feeding hole, the straw and the conical pipe are inserted into liquid, the liquid submerges the main feeding hole and the auxiliary feeding hole, the blocking ball is contacted with the bottom of a container for containing the liquid, the blocking ball is pushed into the conical pipe by the bottom of the container, the main feeding hole is opened, the main feeding hole is blocked by the main feeding hole when the straw leaves the container to fall down again, and the liquid is prevented from dripping in the main feeding hole, and the auxiliary feeding hole can reduce the liquid level difference when the liquid in the auxiliary feeding hole is required to be extruded out, so that the problem in the background technology is solved. The improved suction tube for colony observation comprises a suction tube, wherein an auxiliary feeding hole is formed in the outer surface of the suction tube, an extension tube is arranged at one end of the auxiliary feeding hole, the improved suction tube further comprises a U-shaped tube, the U-shaped tube is arranged at one end, far away from the auxiliary feeding hole, of the extension tube, a conical tube is arranged at the lower end of the suction tube, a main feeding hole is formed in one end of the conical tube, a blocking ball is arranged in the main feeding hole, and a rectangular groove is formed in the outer surface of the blocking ball. Preferably, the suction pipe is provided with a connecting block at the upper end far away from the conical pipe, and the connecting block is in threaded connection with the suction pipe. Preferably, the connecting block is provided with a pressing air bag. Preferably, a handle is arranged on the outer surface of the connecting block, and the handle and the connecting block are integrally arranged. Preferably, the handle is provided with a through hole, and the through hole and the handle are integrally arranged. Preferably, the U-shaped pipe is provided with an auxiliary discharging hole at one end far away from the extension pipe. Compared with the prior art, the utility model has the following beneficial effects: The utility model is