Pipette disinfection device

Abstract

The utility model discloses a pipette sterilizing device which comprises a shell and is characterized in that an inner cavity of the shell is divided into an ozone generating chamber and a plurality of pipette chambers, an ozone generator is arranged in the ozone generating chamber, the pipette chambers are used for accommodating pipettes, and each pipette chamber only can accommodate a single pipette. Each pipette chamber is communicated with the ozone generation chamber, a normally closed valve is arranged at the communication part, and when the pipette is contained, the valve of the pipette chamber where the pipette is located is opened. The pipette disinfection device disclosed by the utility model adopts a separated design, so that ozone generated by the ozone generation chamber cannot be diffused into the unoccupied pipette chamber, and meaningless loss of resources is effectively prevented. Meanwhile, high-concentration ozone can be quickly accumulated in the pipette chamber in which the pipette is placed, so that the efficiency of the disinfection process is remarkably improved.

Description

Technical Field

[0001] The utility model relates to a disinfection device, in particular to a pipette disinfection device. Background Art

[0002] A pipette, also known as a pipette, is a precision device commonly used in laboratories. It can accurately absorb and release different volumes of liquid and is mainly used for quantitative transfer of liquid samples. When a pipette is used in microbiological experiments to transfer contaminated liquids, the liquid will inevitably remain inside the pipette, causing the pipette to be contaminated, thereby causing cross-contamination between samples in subsequent experiments and affecting the experimental results. At present, 75% alcohol is generally used to wipe the outer surface of the pipette to clean the pipette, but this disinfection method is not thorough and cannot clean the inside of the pipette. If the alcohol is not completely evaporated, the microorganisms in the experimental sample will also affect the experimental results due to contact with alcohol.

[0003] The Chinese utility model patent "A Single-channel Pipette Disinfection Device" with application number 201821332545.2 (authorization announcement number CN 209548415 U) discloses a disinfection device that can clean the inside of a pipette. The disinfection device includes a housing, a pipette plug plate is provided on the top of the housing, a plurality of pipette gun rod insertion holes arranged horizontally are provided on the pipette plug plate, and an ultraviolet lamp is provided inside the housing. The pipette is inserted into the housing through the pipette gun rod insertion hole, and the ultraviolet lamp in the housing plays a dual role, which can not only vertically irradiate the pipette gun rod for disinfection, but also generate ozone through photolysis to disinfect the inside of the pipette. However, due to the large space inside the housing, the ozone concentration rises slowly and the disinfection efficiency is low, so further improvement is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to propose a pipette disinfection device with a fast rising ozone concentration in view of the above technical status quo.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a pipette disinfection device, including a shell, characterized in that the shell includes:

[0006] An ozone generating room, which is equipped with an ozone generator;

[0007] at least two pipette chambers, both of which are in communication with the ozone generating chamber, each pipette chamber being only large enough to accommodate a single pipette;

[0008] A valve, normally closed, is disposed at the connection between the pipette gun chamber and the ozone generating chamber;

[0009] Controller, independently controls the opening of each valve.

[0010] Preferably, the controller includes a pressure sensor and an actuator. When the pipette chamber contains a pipette, the pipette acts on the pressure sensor, and the pressure sensor transmits a signal to the actuator to control the valve of the pipette chamber where the pipette is located to open. Thus, the pipette valve can be automatically opened and closed based on pressure sensing without relying on a complex control system or manual manipulation.

[0011] In order to further improve the disinfection efficiency, it is necessary to further reduce the volume of the pipette chamber. Therefore, as a preferred embodiment of the present invention, the pipette chamber includes a chamber body and a finger-resting accommodating groove opened on the chamber wall. The chamber body is adapted to the gun barrel of the pipette, and the finger-resting accommodating groove is used to accommodate the finger of the pipette.

[0012] Preferably, the pipette gun is suspended against the finger-resting groove, and the pressure sensor is arranged on the force-bearing surface of the finger-resting groove.

[0013] Preferably, the distance between the force-bearing surface of the finger-resting groove and the valve of the pipette chamber where it is located is greater than the distance between the pipette finger and the pipette tip, so that when the pipette is hung on the finger-resting groove, the pipette tip is suspended relative to the valve. This can reduce the pipette's obstruction to the diffusion of ozone from the valve into the pipette chamber.

[0014] In order to facilitate the taking and placing of the pipette, the shell is a box body, which includes a box body, and the entrance of the pipette chamber is distributed on the upper surface of the box body.

[0015] Furthermore, the box body also includes a box cover hinged to the box body, and the inner surface of the box cover is provided with a plurality of grooves, the grooves corresponding to the entrance positions on the upper surface of the box body, and the pipette chamber includes the groove portion of the box cover and the portion extending from the entrance of the pipette chamber on the upper surface of the box body into the box body. Under this structure, the height of the pipette chamber is shared by the box body and the box cover, and the pipette can be partially above the upper surface of the box body after being installed, so that it is easier to take it out.

[0016] In order to make the box body beautiful, preferably, the box body is a cylinder, and the pipette gun chamber is distributed around the center of the box body.

[0017] Compared with the prior art, the pipette disinfection device of the utility model adopts a partitioned design, and the inner cavity of the shell is divided into multiple independent pipette chambers. The valves equipped in these pipette chambers will only be controlled by the controller to open when the pipette is placed. This ensures that the valves in the pipette chamber without a pipette are always kept closed, and the ozone generated by the ozone generating chamber will not diffuse to the unoccupied pipette chamber, effectively preventing unnecessary loss of resources. At the same time, this is also conducive to the rapid accumulation of high-concentration ozone in the pipette chamber where the pipette has been placed, significantly improving the efficiency of the disinfection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of an embodiment of the utility model;

[0019] Figure 2 A top view of an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram with the lid open. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3 As shown, it is a preferred embodiment of a pipette disinfection device of the utility model. The disinfection device includes a shell, the inner cavity of which is divided into an ozone generating chamber 3 and a plurality of pipette chambers 2. An ozone generator 31 is arranged in the ozone generating chamber 3, which is used to provide ozone for disinfecting the pipette 6. The pipette chamber 2 is used to accommodate the pipette 6, and each pipette chamber 2 is only enough to accommodate a single pipette 6, and each pipette chamber 2 is connected to the ozone generating chamber 3. A normally closed valve 4 is respectively provided at the connection between each pipette chamber 2 and the ozone generating chamber 3. When a pipette 6 to be disinfected is placed in one or several pipette chambers 2, the valve 4 of the one or more pipette chambers 2 will be automatically opened through a controller with pressure sensing, and the ozone in the ozone generating chamber 3 will enter the pipette chamber 2 to disinfect the pipette 6 therein.

[0023] The pipette gun chamber 2 includes a chamber body and a finger-resting groove 21 opened in the chamber wall. The chamber body is adapted to the gun rod 62 of the pipette gun 6, and the finger-resting groove 21 is used to accommodate the finger-resting groove 61 of the pipette gun 6. The pipette gun 6 is hung on the finger-resting groove 21 through its finger-resting groove 61, and the pressure sensor 5 for pressure sensing is installed on the force-bearing surface of the finger-resting groove 21.

[0024] The distance from the force-bearing surface of the finger-resting groove 21 to the valve 4 of the pipette gun chamber 2 where it is located is greater than the distance from the finger-resting groove 21 of the pipette gun 6 to the gun tip 63 of the pipette gun 6. This allows the gun tip 63 of the pipette gun 6 to be suspended relative to the valve 4 when the pipette gun 6 is hung on the finger-resting groove 21. Ozone can be less obstructed by the gun tip 63 of the pipette gun 6 in the process of passing through the valve 4 and entering the pipette gun chamber 2.

[0025] The above-mentioned shell can be designed in various forms as needed. In the present embodiment, a cylindrical box body 1 is used as the shell, and the pipette gun chamber 2 is distributed around the center of the box body 1. The box body 1 includes a box body 12, and the upper surface of the box body 12 is provided with an entrance of the pipette gun chamber 2. There is also a box cover 11, which is hinged to the box body 12, and the inner surface of the box cover 11 is provided with a plurality of grooves 22, and the grooves 22 correspond to the entrance positions of the pipette gun chamber 2 on the upper surface of the box body 12. The pipette gun chamber 2 includes two parts: the groove 22 part of the box cover 11, and the part extending from the entrance of the pipette gun chamber 2 on the upper surface of the box body 12 into the box body 12.

[0026] The method of using this embodiment is as follows: open the box cover 11, put the pipette gun 6 to be disinfected into the entrance of the pipette gun chamber 2 on the upper surface of the box body 12, the finger rest 61 of the pipette gun 6 is hung in the finger rest receiving groove 21, the gun rod 62 and the gun head 63 of the pipette gun 6 are suspended in the chamber body, and the box cover 11 is closed; the pressure sensor 5 in the finger rest receiving groove 21 senses that the pipette gun 6 is put in, and the pressure sensor 5 sends a signal to the actuator, so that the valve 4 in the occupied pipette gun chamber 2 is automatically opened, and the ozone in the ozone generating chamber 3 quickly diffuses and fills the pipette gun chamber 2, thereby disinfecting the surface and the inside of the pipette gun 6; after waiting for the pipette gun 6 to be disinfected, open the box cover 11 again, take out the pipette gun 6, and the valve 4 automatically returns to the closed state.

Claims

1. A pipette disinfection device, comprising a housing, characterized in that: The housing includes: An ozone generating chamber (3) is provided with an ozone generator (31); At least two pipette chambers (2), both of which are connected to the ozone generating chamber (3), and each pipette chamber (2) is only large enough to accommodate a single pipette (6); A valve (4) is normally closed and arranged at the connection point between the pipette chamber (2) and the ozone generating chamber (3); A controller independently controls the opening of each valve (4).

2. The pipette disinfection device according to claim 1, characterized in that: The controller comprises a pressure sensor (5) and an actuator. When the pipette chamber (2) contains a pipette (6), the pipette (6) acts on the pressure sensor (5), and the pressure sensor (5) transmits a signal to the actuator to control the valve (4) of the pipette chamber (2) where the pipette (6) is located to open.

3. The pipette disinfection device according to claim 2, characterized in that: The pipette chamber (2) comprises a chamber body and a finger-holding receiving groove (21) opened on the chamber wall. The chamber body is adapted to the gun rod (62) of the pipette (6), and the finger-holding receiving groove (21) is used to hold the finger-holding (61) of the pipette (6).

4. The pipette disinfection device according to claim 3, characterized in that: The liquid transfer gun (6) is suspended against the finger-resting accommodating groove (21), and the pressure sensor (5) is arranged on the force-bearing surface of the finger-resting accommodating groove (21).

5. The pipette disinfection device according to claim 4, characterized in that: The distance between the force-bearing surface of the finger-resting groove (21) and the valve (4) of the pipette chamber (2) where it is located is greater than the distance between the finger-resting groove (61) of the pipette (6) and the tip (63) of the pipette (6), so that when the pipette (6) is suspended on the finger-resting groove (21), the tip (63) of the pipette (6) is suspended relative to the valve (4).

6. The pipette disinfection device according to claim 1, characterized in that: The shell is a box body (1), the box body (1) comprises a box body (12), and the upper surface of the box body (12) is provided with an inlet of a pipette gun chamber (2).

7. The pipette disinfection device according to claim 6, characterized in that: The box body (1) further comprises a box cover (11) hingedly connected to the box body (12); a plurality of grooves (22) are formed on the inner surface of the box cover (11); the grooves (22) correspond to the entrance positions on the upper surface of the box body (12); and the pipette chamber (2) comprises the groove (22) portion of the box cover (11) and a portion extending from the entrance of the pipette chamber (2) on the upper surface of the box body (12) into the box body (12).

8. The pipette disinfection device according to claim 7, characterized in that: The box body (1) is a cylinder, and the pipette chamber (2) is distributed around the center of the box body (1).

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