Portable pipette for inspection

Abstract

The utility model discloses a portable pipette for inspection in the technical field of pipettes, which comprises a pipette body, a holding end is arranged on the surface of the pipette body, a rotatable contact head is arranged above the holding end, and the portable pipette also comprises a lifting unit used for controlling the spatial height of the contact head. According to the utility model, the contact head is arranged above the holding end of the pipette body, so that after a user pumps liquid into the pipette body, if operation needs to be paused, the user can rotate the contact head after controlling the space height of the contact head through the lifting unit, and the contact head is rotated to move the liquid into the pipette body; the surface of the abutting head abuts against the surface of the operating rod of the pipette body, and therefore the situation that liquid leaks due to the fact that external force impacts the surface of the operating rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipette technology, specifically a portable pipette for testing. Background Technology

[0002] A pipette is a precision instrument used for the quantitative transfer of liquids. Also known as a pipette or micropipette, it is a piston-type pipette that operates on the principle of air emission and is widely used in fields such as biology, chemistry, and medicine.

[0003] When using a pipette, you typically need to press the lever to draw in the liquid, and then press the lever again to spray it out. This method of operation means that if you need to pause the operation after drawing in the liquid, and an external force hits the surface of the lever, the liquid inside the pipette may be pushed out, resulting in leakage. Therefore, a new type of portable pipette for testing is needed to solve the above problem. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that if an operation needs to be paused after the liquid is drawn in, and an external force subsequently impacts the surface of the operating lever, the liquid inside the pipette will be pushed out, resulting in leakage. This invention provides a pipette.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A portable pipette for testing includes: a pipette body, a holding end provided on the surface of the pipette body, a rotatable contact head provided above the holding end, and a lifting unit for controlling the spatial height of the contact head.

[0007] Furthermore, the lifting unit includes an empty tube, one end of which is threaded with a threaded rod, and one end of which is fixedly mounted with a fixing head. It also includes an installation unit and a limiting unit. The installation unit is used to rotatably mount the contact head onto the surface of the fixing head, and the limiting unit is used to restrict the empty tube above the holding end.

[0008] Furthermore, the installation unit includes a rotating groove formed on the surface of the fixing head, a rubber sleeve is rotatably fitted onto the inner wall of the rotating groove, a rotating ring is fixedly fitted onto the surface of the rubber sleeve, and one end of the contact head is fixedly installed on the surface of the rotating ring.

[0009] Furthermore, the limiting unit includes a limiting groove formed on the surface of the holding end, a limiting block is slidably inserted into the inner wall of the limiting groove, one end of the empty tube is fixedly installed on the surface of the limiting block, a limiting bolt is threaded into the surface of the holding end, and the surface of the limiting bolt is threaded into the surface of the limiting block.

[0010] Furthermore, a square head is fixedly installed on the top of the rotating ring.

[0011] Furthermore, a slope tube is slidably inserted into one end of the pipette body, and a dispensing head is fixedly installed at one end of the slope tube, with a fitting edge provided on the surface of the dispensing head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting an abutment above the holding end of the pipette body, if the user needs to pause the operation after drawing liquid into the pipette body, the user can control the spatial height of the abutment through the lifting unit and rotate the abutment so that the surface of the abutment abuts against the surface of the operating rod of the pipette body, thereby avoiding external force hitting the surface of the operating rod and causing liquid leakage.

[0014] 2. In this utility model, a liquid outlet is provided at one end of the pipette body. When using it, the user needs to insert the slope tube fixedly installed at one end of the liquid outlet into one end of the pipette body. Then, the liquid outlet can be inserted into the small hole groove for testing to perform liquid injection. Since there is a fitting edge on the surface of the liquid outlet, the fitting edge will fit against the top of the small hole groove during the liquid injection process to avoid liquid leakage. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial schematic diagram of a half-sectional view of the present invention;

[0017] Figure 3 This is another schematic diagram of a half-sectional view of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of another part of the present invention.

[0019] In the diagram: 1. Pipette body; 2. Holding end; 3. Contact head; 4. Lifting unit; 41. Empty tube; 42. Threaded rod; 43. Fixing head; 44. Mounting unit; 441. Rotating groove; 442. Rubber sleeve; 443. Rotating ring; 45. Limiting unit; 451. Limiting groove; 452. Limiting block; 453. Limiting bolt; 5. Square head; 6. Sloping tube; 7. Dispensing head; 8. Fitting edge. Detailed Implementation

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0021] This embodiment provides a pipette primarily designed to address the problem that, if an operation needs to be paused after drawing in liquid, subsequent impact on the operating lever can push the liquid out of the pipette, causing leakage. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation:

[0022] A portable pipette for testing includes: a pipette body 1 with a holding end 2 on its surface, and a rotatable abutment head 3 above the holding end 2. In use, after the user draws liquid into the pipette body 1, if it is necessary to pause the operation, the user can control the height of the abutment head 3 via a lifting unit 4 and rotate the abutment head 3 to abut against the surface of the operating rod of the pipette body 1, thus preventing external force from impacting the surface of the operating rod and causing liquid leakage. The main component of the lifting unit 4 is an empty tube 41 with a threaded rod 42 threaded to one end. In use, the user needs to restrict the empty tube 41 above the holding end 2 via a limiting unit 45, and then rotate the abutment head 3, which is rotatably mounted on the surface of the fixed head 43 via an installation unit 44, to abut against the surface of the operating rod of the pipette body 1, thereby limiting the operation of the pipette body 1.

[0023] By setting an abutment 3 above the holding end 2 of the pipette body 1, if the user needs to pause the operation after drawing liquid into the pipette body 1, the user can control the spatial height of the abutment 3 through the lifting unit 4 and rotate the abutment 3 so that the surface of the abutment 3 abuts against the surface of the operating rod of the pipette body 1, thereby avoiding external force hitting the surface of the operating rod and causing liquid leakage.

[0024] By setting a dispensing head 7 at one end of the pipette body 1, the user needs to insert the slope tube 6, which is fixedly installed at one end of the dispensing head 7, into one end of the pipette body 1 during use. Then, the dispensing head 7 can be inserted into the small hole groove for testing to perform liquid injection. Since there is a fitting edge 8 on the surface of the dispensing head 7, the fitting edge 8 will fit against the top of the small hole groove during the liquid injection process to avoid liquid leakage.

[0025] like Figure 2 As shown, in some embodiments, the main components of the mounting unit 44 are: a rotating groove 441 formed on the surface of the fixed head 43, a rubber sleeve 442 rotatably sleeved on the inner wall of the rotating groove 441, and a rotating ring 443 fixedly sleeved on the surface of the rubber sleeve 442. When the user rotates the contact head 3, it can drive the rotating ring 443 fixedly installed at one end to rotate. Under the action of the friction of the rubber sleeve 442, the contact head 3 can remain stationary without the action of external force. It should be noted that when the user rotates the contact head 3, it will not drive the threaded rod 42 to rotate, because the surface of the threaded rod 42 is also made of rubber, and there will be resistance when it rotates on the inner wall of the hollow tube 41.

[0026] like Figure 2 and Figure 4 As shown, in some embodiments, the main component of the limiting unit 45 is a limiting groove 451 formed on the surface of the holding end 2. In use, the user needs to slide the limiting block 452, which is fixedly installed at one end of the empty tube 41, into the inner wall of the limiting groove 451, and then thread the limiting bolt 453 into the surface of the holding end 2 so that the limiting bolt 453 is threaded into the surface of the limiting block 452, thereby limiting the empty tube 41 above the holding end 2.

[0027] like Figure 2 As shown, in some embodiments, a square head 5 is fixedly installed on the top of the rotating ring 443, and the user can pinch the two sides of the square head 5 to rotate the rotating ring 443.

[0028] like Figure 1 and Figure 3 As shown, in some embodiments, during use, the user needs to insert the dispensing head 7, which has a slope tube 6 fixedly installed at one end, into one end of the pipette body 1 (the slope tube 6 is made of rubber and can be restricted to one end of the pipette body 1). In subsequent use, the user needs to insert the dispensing head 7 into the small hole groove for testing to perform the liquid injection operation. During the liquid injection process, the fitting edge 8 will fit against the top of the small hole groove to avoid liquid leakage.

[0029] The working process of this utility model is as follows: After the user draws liquid into the inside of the pipette body 1, if it is necessary to pause the operation, the threaded rod 42 can be rotated to move the contact head 3, thereby controlling the height of the space. Then, the square head 5 is pinched and the rotating ring 443 is rotated to make the surface of the contact head 3 contact the surface of the operating rod of the pipette body 1, which can limit the operation rod and prevent external force from hitting the surface of the operating rod during subsequent use, which could cause the pipette body 1 to leak.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable pipette for testing, characterized in that, include: The pipette body (1) has a holding end (2) on its surface and a rotatable contact head (3) above the holding end (2). It also includes a lifting unit (4) for controlling the spatial height of the contact head (3).

2. The portable pipette for testing according to claim 1, characterized in that: The lifting unit (4) includes a hollow tube (41), one end of which is threaded with a threaded rod (42), and one end of the threaded rod (42) is fixedly mounted with a fixing head (43). It also includes an installation unit (44) and a limiting unit (45). The installation unit (44) is used to rotate the contact head (3) onto the surface of the fixing head (43), and the limiting unit (45) is used to restrict the hollow tube (41) above the holding end (2).

3. A portable pipette for testing according to claim 2, characterized in that: The installation unit (44) includes a rotating groove (441) formed on the surface of the fixing head (43). A rubber sleeve (442) is rotatably sleeved on the inner wall of the rotating groove (441). A rotating ring (443) is fixedly sleeved on the surface of the rubber sleeve (442). One end of the contact head (3) is fixedly installed on the surface of the rotating ring (443).

4. A portable pipette for testing according to claim 2, characterized in that: The limiting unit (45) includes a limiting groove (451) formed on the surface of the holding end (2). A limiting block (452) is slidably inserted into the inner wall of the limiting groove (451). One end of the empty tube (41) is fixedly installed on the surface of the limiting block (452). A limiting bolt (453) is threadedly inserted into the surface of the holding end (2). The surface of the limiting bolt (453) is threadedly inserted into the surface of the limiting block (452).

5. A portable pipette for testing according to claim 3, characterized in that: A square head (5) is fixedly installed on the top of the rotating ring (443).

6. A portable pipette for testing according to claim 1, characterized in that: One end of the pipette body (1) is slidably inserted with a slope tube (6), and one end of the slope tube (6) is fixedly installed with a dispensing head (7). The surface of the dispensing head (7) is provided with a fitting edge (8).

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