Pipette placing rack

Abstract

The utility model discloses a pipette placing rack, which belongs to the field of experimental equipment and comprises two vertically arranged supporting legs, and a clamping and placing unit is arranged between the middle parts of the two supporting legs; the clamping and placing unit comprises a base, a through hole is formed in the base, a clamping groove is formed in the base, a clamping piece is arranged in the clamping groove and comprises a clamping rod body, the upper portion of the clamping rod body is bent to form an upper bent section, and the lower portion of the clamping rod body is bent to form a lower bent section. The transfer pipette placing rack provided by the utility model is reasonable in structural design, the clamping piece can firmly fix a big-belly transfer pipette from the upper part, the lower part and the peripheral direction, and the transfer pipette cannot fall off in the process of carrying out other operations after the transfer pipette placing rack is inversely placed or horizontally placed, so that the application range of the transfer pipette placing rack is widened. Moreover, the transfer pipettes placed on the transfer pipette placing rack can be uniformly inverted, so that the convenience is improved.

Description

Technical Field

[0001] The utility model relates to a pipette placement rack and belongs to the field of experimental equipment. Background Art

[0002] A pipette is a glass vessel used in the laboratory to transfer a small amount of liquid of a certain volume. Its lower end is pointed. After cleaning or use, pipettes need to be stored on a rack to avoid damage from bumps, to prevent clean pipettes from contacting with surrounding objects and being contaminated, or to prevent residual liquid in the pipette after use from contaminating surrounding objects. The big-bellied pipette is bulged in the middle and slender at both ends. It can increase the amount of liquid stored through the bulge in the middle, shorten the length of the pipette, and facilitate use.

[0003] The currently used pipette racks can be divided into two types according to the placement state of the pipette: vertical support and horizontal support. The vertical support rack is usually composed of two layers of support plates, with a through hole on the upper support plate. After the pipette passes through the through hole, the bottom is supported on the lower support plate; the horizontal support rack usually includes two left and right support plates, and slots are set on the two support plates for the two ends of the pipette to be inserted. The currently used vertical support rack has the problem of high center of gravity and unstable placement when applied to large-bellied pipettes. Moreover, whether it is a vertical support or a horizontal support rack, it can only be placed in a fixed direction for use. If the pipette needs to be turned over to make the residual liquid drip through the upper port of the pipette, each pipette can only be operated in turn. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a pipette placement rack, which can firmly fix large-bellied pipettes from above, below and all around, thereby improving convenience.

[0005] A pipette placement rack comprises two vertically arranged support legs, and a plurality of clamping units are arranged between the middle parts of the two support legs;

[0006] Each card placement unit includes a base, a through hole is vertically opened on the base, and a plurality of card slots are evenly arranged on the base along the circumference, wherein the slot openings of the card slots are opened on the hole wall of the through hole, and the bottom of the card slots extends in a direction away from the axis of the through hole, and the card slots pass through the upper and lower surfaces of the base, and a clamping member is respectively arranged in each card slot;

[0007] The clamping member includes a clamping rod body, the middle part of the clamping rod body is fixed at the bottom of the slot, the upper part of the clamping rod body is bent downward toward the side close to the axis of the through hole to form an upper bending section, and the lower part of the clamping rod body is bent upward toward the side close to the axis of the through hole to form a lower bending section, and the top of the upper bending section and the bottom of the lower bending section are both formed with an arched portion arched toward the center axis of the through hole.

[0008] Optionally, the lower end of the upper bending section and the upper end of the lower bending section both extend into the slot.

[0009] Optionally, the base is ring-shaped.

[0010] Optionally, the number of the card slots is 3-5.

[0011] Optionally, the clamping rod body is a thin metal rod.

[0012] Optionally, the supporting legs include two supporting vertical beams, and a plurality of supporting horizontal beams are connected between the two supporting vertical beams.

[0013] The beneficial effects of this application include but are not limited to:

[0014] The pipette placement rack provided by the utility model has a reasonable structural design, and the clamping parts can firmly fix the large-bellied pipette from the top, bottom and all directions. When the pipette placement rack is inverted or laid flat for other operations, the pipette will not fall, which broadens the use scope of the pipette placement rack. Moreover, the pipettes placed on the pipette placement rack can complete the inversion operation uniformly, which improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of the pipette placement rack provided by the utility model;

[0017] Figure 2 It is a structural schematic diagram of a card placement unit;

[0018] Figure 3 This is a state diagram of the big-bellied pipette when it is placed in the card placement unit;

[0019] In the figure, 1, a big-bellied pipette; 11, an enlarged portion; 100, a supporting leg; 200, a clamping unit; 210, a base; 211, a through hole; 212, a clamping slot; 220, a clamping member; 221, a rod body; 222, an upper bending section; 223, a lower bending section; 224, a raised portion. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0021] It should be noted that many specific details are described in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0022] like Figure 1-Figure 3 As shown in , the pipette placement rack provided by the utility model includes two vertically arranged support legs 100, and a plurality of clamping units 200 are arranged between the middle parts of the two support legs 100, and a large-bellied pipette 1 can be placed on each clamping unit 200.

[0023] Specifically, each card-releasing unit 200 includes a base 210, which is usually in a circular ring shape. A through hole 211 is vertically provided on the base 210, and the through hole 211 can accommodate the enlarged portion 11 of the large-bellied pipette. A plurality of card slots 212 are evenly arranged along the circumference of the base 210, and the slot openings of the card slots 212 are provided on the hole wall of the through hole 211, and the bottom of the card slots 212 extends in a direction away from the axis of the through hole 211. The card slots 212 pass through the upper and lower surfaces of the base 210, and a clamping member 220 is respectively arranged in each card slot 212. The number of the card slots 212 and the clamping members 220 is 3-5, which can form a reliable constraint and fixation for the large-bellied pipette.

[0024] The clamping member 220 includes a clamping rod 221, the middle of which is fixed to the bottom of the slot 212, the upper portion of the clamping rod 221 is bent downward toward the side close to the axis of the through hole 211 to form an upper bending section 222, the lower portion of the clamping rod 221 is bent upward toward the side close to the axis of the through hole 211 to form a lower bending section 223, and the top of the upper bending section 222 and the bottom of the lower bending section 223 are both formed with an arched portion 224 arched toward the central axis of the through hole 211. The clamping rod 221 is made of a thin metal rod, such as a thick stainless steel wire, which can meet the required strength, toughness and deformation recovery ability.

[0025] When the big-bellied pipette is moved downward from the through hole 211, the enlarged portion 11 of the big-bellied pipette will contact and squeeze the arched portion 224 on the upper side. After being squeezed, the arched portion 224 will move away from the central axis of the through hole 211. After the enlarged portion 11 moves over the arched portion 224 on the upper side, the arched portion 224 on the upper side returns to its original position and is stuck on the top of the enlarged portion 11; while the lower part of the enlarged portion 11 is stuck on the arched portion on the lower side. In this way, the enlarged portion 11 of the big-bellied pipette can be stuck by the arched portions on the upper and lower sides to prevent the enlarged portion 11 from escaping from the clamping unit 200, thereby achieving the fixation of the big-bellied pipette.

[0026] Moreover, since the card placement unit 200 provided by the utility model can fix the large-bellied pipette from above, below and all around, the pipette placement rack can be inverted or laid flat. For example, when the pipette is washed and placed on the pipette placement rack provided by the utility model to dry, if there is residual water inside the pipette, the pipette placement rack can be inverted as a whole to make the residual water drip from the large mouth end of the pipette. If the pipette and the placement rack need to be placed in a drying device as a whole for drying, the placement rack can be laid flat on its side. In the process of inverting or laying the pipette placement rack flat, the pipette will not fall. Moreover, the pipettes placed on the pipette placement rack can complete the inversion operation uniformly, and there is no need to operate the pipettes one by one, thereby improving the experimental efficiency.

[0027] In a preferred embodiment, the lower end of the upper bending section 222 and the upper end of the lower bending portion both extend into the slot 212. When the arched portion 224 is squeezed and moves in a direction away from the central axis of the through hole 211, it should move along the slot 212, thereby constraining the arched portion 224 to be squeezed and deformed in the required direction.

[0028] Typically, the support leg 100 includes two support vertical beams, and a plurality of support horizontal beams are connected between the two support vertical beams. Of course, the support leg 100 can also adopt a structure in conventional technical means, as long as it can be stably supported on the table surface so that the bottom of the card placement unit is at a certain distance from the table surface.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified or limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A pipette placement rack, characterized in that: It comprises two vertically arranged supporting legs, and a plurality of clamping units are arranged between the middle parts of the two supporting legs; Each card placement unit includes a base, a through hole is vertically opened on the base, and a plurality of card slots are evenly arranged on the base along the circumference, wherein the slot openings of the card slots are opened on the hole wall of the through hole, and the bottom of the card slots extends in a direction away from the axis of the through hole, and the card slots pass through the upper and lower surfaces of the base, and a clamping member is respectively arranged in each card slot; The clamping member includes a clamping rod body, the middle part of the clamping rod body is fixed at the bottom of the slot, the upper part of the clamping rod body is bent downward toward the side close to the axis of the through hole to form an upper bending section, and the lower part of the clamping rod body is bent upward toward the side close to the axis of the through hole to form a lower bending section, and the top of the upper bending section and the bottom of the lower bending section are both formed with an arched portion arched toward the center axis of the through hole.

2. The pipette placement rack according to claim 1, characterized in that: The lower end of the upper bending section and the upper end of the lower bending section both extend into the clamping groove.

3. The pipette placement rack according to claim 1, characterized in that: The base is in a circular ring shape.

4. The pipette stand according to claim 1, characterized in that: The number of the card slots is 3-5.

5. The pipette stand according to claim 1, characterized in that: The clamping rod body is a thin metal rod.

6. The pipette placement rack according to claim 1, characterized in that: The supporting legs include two supporting vertical beams, and a plurality of supporting horizontal beams are connected between the two supporting vertical beams.

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