Pipettor convenient for replacing pipetting suction head

Abstract

The utility model relates to the technical field of pipettors, and discloses a pipettor convenient for replacing a pipetting suction head, which comprises a base, a support I and a support II are arranged above the base, a collecting box is arranged on the base in a sliding manner, a detachable clamping plate I and a detachable clamping plate II are respectively arranged on opposite sides of the support I and the support II, the clamping plate I is fixedly arranged on the support I, and the clamping plate II is fixedly arranged on the support II. The second clamping plate is driven by an electric push rod fixed to the second support, a plurality of clamping grooves are formed in the opposite sides of the first clamping plate and the second clamping plate, and the clamping grooves in the first clamping plate and the second clamping plate are in one-to-one correspondence and matched with each other to be used for clamping the pipetting tips. The pipette tip removing device has the advantages that pipette tips on different types of pipettes can be removed more easily in a more labor-saving manner, liquid cannot be splashed, and the safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of pipettes, in particular to a pipette which is convenient for replacing a pipette tip. Background Art

[0002] A pipette is a tool used to accurately move and dispense liquids in laboratory work. It usually consists of a pipette and a mouthpiece that releases the liquid. The main function of a pipette is to allow experimenters to draw liquid from one container (such as a test tube or microplate) with precise volume and transfer it to another container to complete various steps in the experimental process, such as preparing solutions, conducting reactions, and performing sample analysis.

[0003] At present, pipettes have built-in structures for removing pipette tips, which are generally spring-pressed structures that push out the pipette tips. However, this method not only makes the pipette tips easy to bounce around, but is also likely to splash liquid, which is dangerous to a certain extent. It is also not suitable for multi-channel pipettes and it is difficult to clear multiple pipette tips at one time. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model proposes a pipette which can easily and labor-savingly remove the pipette tips on different types of pipette guns without splashing liquid and is safer and convenient for replacing the pipette tips.

[0005] In order to solve the above-mentioned technical problems, the technical solution proposed by the utility model is: a pipette for facilitating replacement of pipette tips, comprising a base, a support one and a support two are arranged above the base, a collection box is slidably arranged on the base, and detachable splint one and splint two are respectively arranged on opposite sides of the support one and the support two, the splint one is fixed on the support one, the splint two is driven by an electric push rod fixed on the support two, a plurality of clamping grooves are arranged on opposite sides of the splint one and the splint two, and the clamping grooves on the splint one and the splint two correspond to each other and cooperate with each other for clamping the pipette tips.

[0006] Furthermore, the support 1 and the support 2 are fixedly connected to the base via support rods arranged at the four corners above the base.

[0007] Based on the above features, the support rods are arranged at the four corners of the base, which can support and fix the support one and the support two, provide sufficient placement space for the collection box, and do not affect its sliding placement.

[0008] Furthermore, a limit baffle plate cooperating with the collection box is connected to the upper edge of the base, the limit baffle plate is an L-shaped plate, the collection box is slidably arranged between the two limit baffle plates, a notch cooperating with the collection box is provided near one end of the limit baffle plate, and a handle is connected to the end of the collection box.

[0009] Based on the above features, the limit baffle can limit the collection box to ensure that it can move stably, thereby achieving accurate collection of the pipette tips. The notch makes it easy to take out the collection box for cleaning, and the handle makes it easy to move the collection box.

[0010] Furthermore, an L-shaped bracket is connected to one side of the second clamping plate, and the L-shaped bracket is fixedly connected to the end of the electric push rod. The first clamping plate and the first support, as well as the second clamping plate and the L-shaped bracket are fixedly connected by a plurality of screws.

[0011] Based on the above features, the L-shaped bracket facilitates the electric push rod to stably drive the movement of the second clamping plate, and the screws make the first clamping plate and the second clamping plate easy to disassemble, thereby facilitating the replacement of different models of the first clamping plate and the second clamping plate, which is suitable for different models of pipette tips.

[0012] Furthermore, a plurality of anti-slip protrusions are provided on the inner wall of the clamping groove.

[0013] Based on the above features, the anti-slip protrusion can increase the friction between the clamping groove and the pipette tip, further ensuring the stability of the pipette tip and preventing it from falling and splashing.

[0014] Furthermore, a placement groove for placing a pipette tip box is provided above the support one, and a plurality of placement tubes for storing pipette guns and a placement rack for storing multi-channel pipette guns are connected to the support one.

[0015] Based on the above features, a space is provided for convenient storage and management of pipetting equipment, which facilitates smooth pipetting work.

[0016] Compared with the prior art, the advantages of the utility model are: the first clamping plate and the second clamping plate driven by the electric push rod cooperate with each other to achieve stable clamping and fixation of the pipette tip, which is convenient for one-handed operation of the pipette gun to separate it from the pipette tip, thereby achieving easy replacement of the pipette tip, simple and convenient operation, and because the pipette tip is clamped and fixed, it can effectively avoid its bouncing and splashing after separation, which is safe and hygienic. The provision of multiple clamping grooves facilitates the removal of the pipette tip on the multi-channel pipette gun, and has a wide range of applications. In addition, the movable collection box can centrally collect and remove the pipette tips for processing, which can effectively avoid their contamination of the pipette, further improve safety, and be flexible and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0018] Figure 2 The utility model is a three-dimensional Figure 2 ;

[0019] Figure 3 It is the front view of the utility model;

[0020] Figure 4 It is a top view of the utility model.

[0021] As shown in the figure: 1. Base; 2. Support 1; 3. Support 2; 4. Collection box; 5. Clamp 1; 6. Clamp 2; 7. Electric push rod; 8. Support rod; 9. Limit baffle; 10. Handle; 11. L-shaped bracket; 12. Screw; 13. Placement slot; 14. Placement tube; 15. Placement rack. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Combined with Figure 1 , Attachment Figure 2 A pipette for facilitating replacement of pipette tips comprises a base 1, above which are provided a support 1 2 and a support 2 3, wherein the support 1 2 and the support 2 3 are fixedly connected to the base 1 via support rods 8 arranged at the four corners above the base 1, and the support rods 8 are arranged at the four corners of the base 1, which can support and fix the support 1 2 and the support 2 3, thereby providing sufficient placement space for a collection box 4, without affecting its sliding placement.

[0024] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 A collecting box 4 is slidably provided on the base 1, and a limiting baffle 9 matching the collecting box 4 is connected at the upper edge of the base 1. The limiting baffle 9 is an L-shaped plate. The collecting box 4 is slidably provided between the two limiting baffles 9. A notch matching the collecting box 4 is provided near one end of the limiting baffle 9. A handle 10 is connected to the end of the collecting box 4. The limiting baffle 9 can limit the collecting box 4 to ensure that it can move stably, thereby realizing accurate collection of the pipette tips. The notch makes it convenient to take out and clean the collecting box 4, and the handle 10 makes it convenient to move the collecting box 4.

[0025] Combined with Figure 1 , Attachment Figure 4 The support 1 2 and the support 2 3 are respectively provided with a detachable splint 1 5 and a splint 2 6 on opposite sides. The splint 1 5 is fixed on the support 1 2. The splint 2 6 is driven by the electric push rod 7 fixed on the support 2 3. An L-shaped bracket 11 is connected to one side of the splint 2 6. The L-shaped bracket 11 is fixedly connected to the end of the electric push rod 7. The splint 1 5 and the support 1 2, and the splint 2 6 and the L-shaped bracket 11 are fixedly connected by a plurality of screws 12. The L-shaped bracket 11 facilitates the electric push rod 7 to stably drive the splint 2 6 to move. The screws make the splint 1 5 and the splint 2 6 easy to disassemble, thereby facilitating the replacement of different types of splints 1 5 and splint 2 6, which is suitable for different types of pipette tips.

[0026] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 4 The clamping plate 1 5 and the clamping plate 2 6 are provided with a plurality of clamping grooves on the opposite side. The clamping grooves on the clamping plate 1 5 and the clamping plate 2 6 correspond to each other and cooperate with each other to clamp the liquid transfer tip. The inner wall of the clamping groove is provided with a plurality of anti-skid protrusions, which can increase the friction between the clamping groove and the liquid transfer tip, further ensure the stability of the liquid transfer tip, and prevent it from falling and splashing.

[0027] Combined with Figure 1 , Attachment Figure 2 A placement slot 13 for placing a pipette tip box is provided above the support 2, and a plurality of placement tubes 14 for storing ordinary pipettes and a placement rack 15 for storing multi-channel pipettes are connected above the support 2, providing a space for convenient storage and management of pipetting equipment, facilitating the smooth progress of pipetting work.

[0028] The specific implementation mode of the utility model is as follows: the base 1 is stably placed in a suitable position, the electric push rod 7 is connected to an external power supply, the ordinary pipette gun can be placed in the placement tube 14 for standby use, the multi-channel pipette gun can be placed on the placement rack 15 for standby use, the pipette tip box with clean pipette tips is placed in the placement groove 13, the collection box 4 is slid from the notch into between the two limit baffles 9, and is located below the clamping plate 1 5 and the clamping plate 2 6. When transferring liquid, the pipette gun can be directly taken out from the placement tube 14 or the placement rack 15, and inserted into the pipette tip box to connect the pipette tip for transfer. After transfer, the pipette gun is placed The used pipette tip at its lower end is placed in the clamping groove on the splint 1 5 above the splint 1 5, and the electric push rod 7 is controlled to extend. The electric push rod 7 drives the splint 2 6 to approach the splint 1 5, and the clamping groove clamps the pipette tip. The pipette gun is lifted upward to separate from the pipette tip, and the pipette gun is inserted into the pipette tip box again to install a new pipette tip. The electric push rod 7 is controlled to retract, and the splint 2 6 moves away from the splint 1 5, and the pipette tip falls into the collecting box 4. The above process can be repeated to realize multiple replacements of the pipette tip, and the collecting box 4 can be taken out regularly to process the replaced pipette tips.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A pipette for facilitating replacement of a pipette tip, comprising a base (1), characterized in that: A support 1 (2) and a support 2 (3) are provided above the base (1); a collecting box (4) is slidably provided on the base (1); a detachable clamping plate 1 (5) and a detachable clamping plate 2 (6) are respectively provided on opposite sides of the support 1 (2) and the support 2 (3); the clamping plate 1 (5) is fixed on the support 1 (2); the clamping plate 2 (6) is driven by an electric push rod (7) fixed on the support 2 (3); a plurality of clamping grooves are provided on opposite sides of the clamping plate 1 (5) and the clamping grooves on the clamping plate 1 (5) and the clamping plate 2 (6) correspond to each other and cooperate with each other for clamping a pipette tip.

2. A pipette for facilitating replacement of a pipette tip according to claim 1, characterized in that: The support 1 (2) and the support 2 (3) are fixedly connected to the base (1) via support rods (8) arranged at the four corners above the base (1).

3. A pipette for facilitating replacement of a pipette tip according to claim 1, characterized in that: A limit baffle (9) matching the collection box (4) is connected to the upper edge of the base (1); the limit baffle (9) is an L-shaped plate; the collection box (4) is slidably arranged between the two limit baffles (9); a notch matching the collection box (4) is provided near one end of the limit baffle (9); and a handle (10) is connected to the end of the collection box (4).

4. A pipette for facilitating replacement of a pipette tip according to claim 1, characterized in that: An L-shaped bracket (11) is connected to one side of the second clamping plate (6), and the L-shaped bracket (11) is fixedly connected to the end of the electric push rod (7). The first clamping plate (5) and the first support (2), and the second clamping plate (6) and the L-shaped bracket (11) are fixedly connected by a plurality of screws (12).

5. A pipette for facilitating replacement of a pipette tip according to claim 1, characterized in that: A plurality of anti-slip protrusions are arranged on the inner wall of the clamping groove.

6. A pipette for facilitating replacement of a pipette tip according to claim 1, characterized in that: A placement groove (13) for placing a pipette tip box is provided above the support one (2), and a plurality of placement tubes (14) for storing ordinary pipettes and a placement rack (15) for storing multi-channel pipettes are connected to the support one (2).

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