Liquid pipettor for food detection

Abstract

The utility model relates to the technical field of food detection, in particular to a liquid pipettor for food detection, which comprises a liquid pipettor main body and a shell, a pipetting head connected with a pipetting gun head is arranged on one side of the liquid pipettor main body, a button for liquid pipetting treatment is inserted into the top of the liquid pipettor main body, and the liquid pipettor main body is connected with the shell. A push rod for driving the shell to move is inserted outside the liquid pipettor main body, springs are symmetrically welded in the push rod, limiting blocks connected with the liquid pipettor main body are welded on the outer sides of the springs, and fixing holes for fixing the limiting blocks are symmetrically formed in the surface of the liquid pipettor main body; through the arrangement of the spring, the limiting block, the fixing hole, the push rod, the shell, the driving rod, the branch pipe and the fixing sleeve, the problems that when an existing liquid pipettor for food detection is used, the interior of the liquid pipettor body is inconvenient to disinfect, and meanwhile a pipetting head on the liquid pipettor body is inconvenient to protect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of food detection, in particular to a liquid pipette for food detection. Background Art

[0002] Food testing is the process of inspecting, analyzing, and evaluating food ingredients, quality, and safety to ensure food safety and reliability. The primary purpose of food testing is to ensure food safety and reliability and protect public health. By inspecting and analyzing food ingredients, quality, and safety, we can effectively control food safety risks and prevent food safety incidents.

[0003] Patent No. 202222238909.3 discloses a liquid pipette for food testing. The device can squeeze out the extracted liquid quickly and conveniently, thereby increasing the practicality and convenience of the device.

[0004] However, when using the existing liquid pipette for food testing, the food solution to be tested is extracted with a pipette tip. However, if the staff makes an operational error and extracts too much food solution, some of the food solution will enter the liquid pipette body. If the interior is not disinfected and cleaned in time, it will have a certain impact on the subsequent food testing. At the same time, after the liquid pipette body is used, the pipette tip on the liquid pipette body is exposed to the external environment. When foreign matter from the outside comes into contact with the pipette tip, the pipette tip will be deformed and bent, and the pipette tip cannot be smoothly installed on the pipette tip, which has a certain impact on the efficiency of food testing. Therefore, a liquid pipette for food testing is provided. Utility Model Content

[0005] The main purpose of the utility model is to provide a liquid pipette for food testing. The utility model solves the problem that the existing liquid pipette for food testing is inconvenient to disinfect the inside of the liquid pipette body during use and it is inconvenient to protect the pipetting head on the liquid pipette body through the provision of a spring, a limit block, a fixing hole, a push rod, a shell, a driving rod, a branch pipe and a fixing sleeve.

[0006] The technical solution adopted by the utility model to solve its technical problems is a liquid pipette for food testing, comprising a liquid pipette main body and a shell, wherein a pipette head connected to a pipette gun head is provided on one side of the liquid pipette main body, a button for liquid pipetting processing is plugged into the top of the liquid pipette main body, a push rod is plugged into the outside of the liquid pipette main body to drive the shell to move, a spring is symmetrically welded inside the push rod, and a limit block connected to the liquid pipette main body is welded on the outside of the spring, a fixing hole for fixing the limit block is symmetrically opened on the surface of the liquid pipette main body, a cavity frame for placing disinfectant is sleeved on the outside of the liquid pipette main body, a fixing sleeve for entering the interior of the liquid pipette main body is plugged into the inside of the cavity frame, a through hole A is opened on the inner surface of the fixing sleeve for allowing the disinfectant in the cavity frame to enter the fixed sleeve, a branch pipe is plugged into the inside of the fixed sleeve, and a through hole B is opened on the surface of the branch pipe for allowing the disinfectant to enter the liquid pipette main body, and a driving rod for driving the branch pipe to rotate is welded on the outside of the branch pipe.

[0007] By adopting the above technical solution, when the interior of the liquid pipette body is to be disinfected, the driving rod outside the chamber frame is rotated, and then the driving rod drives the branch tube to rotate, so that the through hole B opened on the branch tube coincides with the through hole A on the fixed tube inside the chamber frame, and then the disinfectant in the chamber frame passes through the fixed sleeve into the interior of the branch tube, and then the disinfectant in the branch tube passes through the fixed sleeve into the interior of the liquid pipette body, and then the disinfectant flows out from the pipetting head below the liquid pipette body, thereby facilitating the disinfection process inside the liquid pipette body;

[0008] When the liquid pipette main body is finished using, the limit blocks on both sides of the push rod are pressed, and then the spring on one side of the limit block is compressed, and then the limit block enters the inside of the push rod, and then the push rod is pressed to move, so that the push rod drives the shell to move to the outside of the pipetting head, and at the same time, the spring drives the limit block to pop out outward, and then the limit block enters the fixing hole opened on the surface of the liquid pipette main body, so that the shell is fixed to the outside of the pipetting head, thereby facilitating the protection of the pipetting head on the liquid pipette main body.

[0009] Specifically, the external thread of the cavity frame is connected to a fixed cover for adding disinfectant into the cavity frame.

[0010] By adopting the above technical solution, when disinfectant is to be added to the cavity frame, the fixed cover on the cavity frame is rotated to separate the fixed cover from the cavity frame, and then the disinfectant is placed inside the cavity frame, and then the fixed cover is connected to the cavity frame, and the fixed cover is rotated to connect the fixed cover to the cavity frame, thereby facilitating the addition of disinfectant to the cavity frame.

[0011] Specifically, the inner size of the fixing hole matches the outer size of the limiting block.

[0012] By adopting the above technical solution, when the limiting block enters the fixing hole, the inner size of the fixing hole matches the outer size of the limiting block, which facilitates the limiting block to be fixed inside the fixing hole.

[0013] Specifically, a rubber sleeve is bonded to the outer side of the driving rod to ensure stable rotation of the driving rod.

[0014] By adopting the above technical solution, when the driving rod drives the branch pipe to rotate, the rubber sleeve outside the driving rod increases the friction force on the surface of the driving rod, thereby preventing the driving rod from sliding when rotating.

[0015] Specifically, the inner size of the through hole A is consistent with the inner size of the through hole B.

[0016] By adopting the above technical solution, the through hole A on the fixed sleeve and the through hole B on the branch pipe are matched in size. When the through hole A and the through hole B overlap, the disinfectant in the cavity frame can smoothly enter the liquid pipette body.

[0017] Beneficial effects of the utility model:

[0018] (1) The liquid pipette for food testing described in the present invention, when the interior of the liquid pipette body is to be disinfected, the driving rod outside the cavity frame is rotated, and then the driving rod drives the branch tube to rotate, so that the through hole B opened on the branch tube coincides with the through hole A on the fixed tube inside the cavity frame, and then the disinfectant in the cavity frame passes through the fixed sleeve into the interior of the branch tube, and then the disinfectant in the branch tube passes through the fixed sleeve into the interior of the liquid pipette body, and then the disinfectant flows out from the pipetting head below the liquid pipette body, thereby facilitating the disinfection treatment of the interior of the liquid pipette body.

[0019] (2) The utility model describes a liquid pipette for food testing. When the main body of the liquid pipette is finished being used, the limit blocks on both sides of the push rod are pressed, and then the spring on one side of the limit block is compressed. Then the limit block enters the interior of the push rod, and then the push rod is pressed to move, so that the push rod drives the outer shell to move to the outside of the pipette head. At the same time, the spring drives the limit block to pop out outward, and then the limit block enters the fixing hole opened on the surface of the main body of the liquid pipette, so that the outer shell is fixed to the outside of the pipette head, thereby facilitating the protection of the pipette head on the main body of the liquid pipette. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of a liquid pipette for food testing according to the present invention;

[0022] Figure 2 This is a schematic diagram of the partial internal structure of a push rod of a liquid pipette for food testing according to the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of a cavity frame of a liquid pipette for food testing according to the present invention;

[0024] In the figure: 1. Push rod; 2. Liquid pipette body; 3. Chamber frame; 4. Fixed cover; 5. Drive rod; 6. Housing; 7. Pipette head; 8. Button; 9. Fixed hole; 10. Spring; 11. Rubber sleeve; 12. Limit block; 13. Through hole A; 14. Branch pipe; 15. Fixed sleeve; 16. Through hole B. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In order to disinfect the interior of the liquid pipette body 2, as an embodiment of the present invention, Figure 1 、 Figure 2 and Figure 3 As shown, the liquid pipette for food detection described in the present invention includes a liquid pipette body 2 and a shell 6. A pipette head 7 connected to a pipette gun head is provided on one side of the liquid pipette body 2. A button 8 for liquid pipetting is plugged into the top of the liquid pipette body 2. A push rod 1 for driving the shell 6 to move is plugged into the outside of the liquid pipette body 2. A spring 10 is symmetrically welded inside the push rod 1, and a limit block 12 connected to the liquid pipette body 2 is welded on the outside of the spring 10. The surface of the liquid pipette body 2 is symmetrically opened. A fixing hole 9 is provided for fixing the limit block 12. A cavity frame 3 for placing the disinfectant is sleeved on the outside of the liquid pipette body 2. A fixing sleeve 15 for entering the interior of the liquid pipette body 2 is inserted on the inside of the cavity frame 3. A through hole A13 is opened on the inner surface of the fixing sleeve 15 to allow the disinfectant in the cavity frame 3 to enter the fixing sleeve 15. A branch pipe 14 is inserted on the inside of the fixing sleeve 15, and a through hole B16 is opened on the surface of the branch pipe 14 to allow the disinfectant to enter the liquid pipette body 2. A driving rod 5 for driving the branch pipe 14 to rotate is welded to the outside of the branch pipe 14.

[0027] During use, when the interior of the liquid pipette body 2 is to be disinfected, the driving rod 5 outside the chamber frame 3 is rotated, and then the driving rod 5 drives the branch tube 14 to rotate, so that the through hole B16 opened on the branch tube 14 coincides with the through hole A13 on the fixed tube inside the chamber frame 3, and then the disinfectant in the chamber frame 3 passes through the fixed sleeve 15 into the interior of the branch tube 14, and then the disinfectant in the branch tube 14 passes through the fixed sleeve 15 into the interior of the liquid pipette body 2, and then the disinfectant flows out from the pipetting head 7 below the liquid pipette body 2, thereby facilitating the disinfection process inside the liquid pipette body 2;

[0028] When the use of the liquid pipette main body 2 is finished, the limit blocks 12 on both sides of the push rod 1 are pressed, and then the spring 10 on one side of the limit block 12 is compressed, and then the limit block 12 enters the inside of the push rod 1, and then the push rod 1 is pressed to move, so that the push rod 1 drives the shell 6 to move to the outside of the pipetting head 7. At the same time, the spring 10 drives the limit block 12 to pop out outward, and then the limit block 12 enters the fixing hole 9 opened on the surface of the liquid pipette main body 2, so that the shell 6 is fixed to the outside of the pipetting head 7, thereby facilitating the protection of the pipetting head 7 on the liquid pipette main body 2.

[0029] In order to add disinfectant into the cavity frame 3, for example, Figure 1 As shown, the present invention further includes that the cavity frame 3 is externally threadedly connected to a fixed cover 4 for adding disinfectant into the cavity frame 3 .

[0030] During use, when disinfectant is to be added to the cavity frame 3, the fixed cover 4 on the cavity frame 3 is rotated to separate the fixed cover 4 from the cavity frame 3, and then the disinfectant is placed into the cavity frame 3, and then the fixed cover 4 is connected to the cavity frame 3, and the fixed cover 4 is rotated to connect the fixed cover 4 to the cavity frame 3, thereby facilitating the addition of disinfectant to the cavity frame 3.

[0031] In order to facilitate the fixing of the limiting block 12 in the fixing hole 9, for example, Figure 1 、 Figure 2 As shown, the present invention also includes that the inner size of the fixing hole 9 is consistent with the outer size of the limiting block 12.

[0032] During use, when the limiting block 12 enters the fixing hole 9 , the inner size of the fixing hole 9 matches the outer size of the limiting block 12 , so that the limiting block 12 is easily fixed inside the fixing hole 9 .

[0033] In order to avoid sliding when the driving rod 5 is rotated, for example, Figure 1 As shown, the present invention further includes a rubber sleeve 11 bonded to the outer side of the driving rod 5 to stabilize the rotation of the driving rod 5 .

[0034] During use, when the driving rod 5 drives the branch pipe 14 to rotate, the rubber sleeve 11 outside the driving rod 5 increases the friction force on the surface of the driving rod 5 to prevent the driving rod 5 from sliding when rotating.

[0035] In order to allow the disinfectant in the chamber frame 3 to smoothly enter the liquid pipette body 2, for example, Figure 3 As shown, the present invention also includes that the inner size of the through hole A13 is consistent with the inner size of the through hole B16.

[0036] During use, the through hole A13 on the fixing sleeve 15 and the through hole B16 on the branch pipe 14 match in size. When the through hole A13 and the through hole B16 overlap, the disinfectant in the cavity frame 3 can smoothly enter the liquid pipette body 2 .

[0037] When the utility model is used, the pipette tip is first connected to the pipette tip 7 on the liquid pipette body 2, and then the pipette tip is placed in the food solution to be tested, and then the button 8 on the liquid pipette body 2 is pressed, and then the food solution to be tested enters the interior of the pipette tip, and then the pipette tip on the liquid pipette body 2 is moved to the test reagent tube, and the button 8 is pressed to make the solution in the pipette tip enter the reagent tube for testing. When the food solution enters the interior of the liquid pipette body 2 through the pipette tip, the driving rod 5 outside the cavity frame 3 is rotated, and the driving rod 5 is connected to the chamber frame 3 by a shaft sleeve, and the shaft sleeve is treated with a shaft seal to prevent leakage of the disinfectant in the chamber frame 3. Then, the driving rod 5 drives the branch pipe 14 to rotate, so that the through hole B16 opened on the branch pipe 14 coincides with the through hole A13 on the fixed pipe inside the chamber frame 3. Then, the disinfectant in the chamber frame 3 passes through the fixed sleeve 15 and enters the interior of the branch pipe 14. Then, the disinfectant in the branch pipe 14 passes through the fixed sleeve 15 and enters the interior of the liquid pipette body 2. Then, the disinfectant flows out from the pipetting head 7 below the liquid pipette body 2, thereby facilitating the internal disinfection of the liquid pipette body 2.

[0038] When the use of the liquid pipette main body 2 is finished, the limit blocks 12 on both sides of the push rod 1 are pressed, and then the spring 10 on one side of the limit block 12 is compressed, and then the limit block 12 enters the inside of the push rod 1, and then the push rod 1 is pressed to move, so that the push rod 1 drives the housing 6 to move to the outside of the pipetting head 7. At the same time, the spring 10 drives the limit block 12 to pop out outward, and then the limit block 12 enters the fixing hole 9 opened on the surface of the liquid pipette main body 2, so that the housing 6 is fixed to the outside of the pipetting head 7, thereby facilitating the protection of the pipetting head 7 on the liquid pipette main body 2;

[0039] When disinfectant is to be added into the cavity frame 3, the fixed cover 4 on the cavity frame 3 is rotated to separate the fixed cover 4 from the cavity frame 3, and then the disinfectant is put into the cavity frame 3, and then the fixed cover 4 is connected to the cavity frame 3, and the fixed cover 4 is rotated to connect the fixed cover 4 to the cavity frame 3, so as to facilitate the addition of disinfectant into the cavity frame 3.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid pipette for food testing, characterized in that, The invention comprises a liquid pipette body (2) and a shell (6); a pipette head (7) connected to a pipette gun head is provided on one side of the liquid pipette body (2); a button (8) for liquid pipetting is plugged into the top of the liquid pipette body (2); a push rod (1) for driving the shell (6) to move is plugged into the outside of the liquid pipette body (2); a spring (10) is symmetrically welded inside the push rod (1), and a limit block (12) connected to the liquid pipette body (2) is welded outside the spring (10); and fixing holes for fixing the limit block (12) are symmetrically opened on the surface of the liquid pipette body (2). (9), the outer side of the liquid pipette body (2) is sleeved with a cavity frame (3) for placing disinfectant, the inner side of the cavity frame (3) is plugged with a fixed sleeve (15) for entering the interior of the liquid pipette body (2), the inner surface of the fixed sleeve (15) is provided with a through hole A (13) for allowing the disinfectant in the cavity frame (3) to enter the fixed sleeve (15), the inner side of the fixed sleeve (15) is plugged with a branch pipe (14), and the surface of the branch pipe (14) is provided with a through hole B (16) for allowing the disinfectant to enter the liquid pipette body (2), and the outer side of the branch pipe (14) is welded with a driving rod (5) for driving the branch pipe (14) to rotate.

2. A liquid pipette for food testing according to claim 1, characterized in that: The cavity frame (3) is externally threadedly connected to a fixed cover (4) for adding disinfectant into the cavity frame (3).

3. A liquid pipette for food testing according to claim 1, characterized in that: The inner size of the fixing hole (9) matches the outer size of the limiting block (12).

4. A liquid pipette for food testing according to claim 1, characterized in that: A rubber sleeve (11) is bonded to the outside of the driving rod (5) to ensure stable rotation of the driving rod (5).

5. A liquid pipette for food testing according to claim 1, characterized in that: The inner size of the through hole A (13) is consistent with the inner size of the through hole B (16).

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