Pipettor placing rack
By designing a tilting clamp and modular pipette holder, the compatibility and stability issues of existing holders were resolved, enabling multi-model compatibility and sterilization functions, thus ensuring the stability and hygiene safety of experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGDEZHEN SECOND PEOPLES HOSPITAL
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing pipette holders are difficult to be compatible with different models, and when stored vertically, their high center of gravity makes them prone to tipping over, affecting the accuracy of experimental data.
A pipette holder comprising a support frame, a pipette fixing structure, an assembly structure, and a protective structure was designed. Through tilting clamping and modular adaptation, the center of gravity is lowered and it is compatible with various models; it is combined with an ultraviolet sterilization lamp for disinfection.
It achieves compatibility with different pipette models, reduces the risk of spillage, and ensures experimental stability and hygiene safety.
Smart Images

Figure CN224252856U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of cell and molecular biology technology, and particularly relates to a pipette holder. Background Technology
[0002] In the field of cell and molecular biology, pipettes, as a fundamental experimental tool, support key technological breakthroughs from basic research to high-throughput screening through their precise liquid manipulation capabilities.
[0003] Chinese patent announcement number CN209287379U discloses a pipette holder and a pipette placement platform. The bottom end of a support column is connected to a base; a pipette placement tray is fitted onto the support column and connected to it; a fixing component is located at the outer edge of the pipette placement tray for clamping the pipette; the fixing component includes a fixing cylinder, an elastic element, and a clamping piece; both the elastic element and the clamping piece are located inside the fixing cylinder, one end of the elastic element is fixedly connected to the inner wall of the fixing cylinder, and the other end of the elastic element is fixedly connected to the clamping piece; the pipette handle can be placed within the annular space enclosed by the clamping piece and the fixing cylinder, and is clamped by the clamping piece and the fixing cylinder, thus ensuring that the pipette is stably and securely hung on the pipette holder, preventing it from falling off the holder due to accidental contact by the experimenter and affecting the accuracy of the experimental data.
[0004] However, this device has the following drawbacks: it is difficult to be compatible with different types of pipettes, resulting in low equipment versatility; and when pipettes are stored vertically, the center of gravity is too high, making it prone to tipping over. To address these shortcomings, we propose a pipette holder. Utility Model Content
[0005] The purpose of this invention is to provide a pipette holder to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A pipette holder, comprising:
[0007] The support frame includes a base, a support rod rotatably connected to the upper end of the base, and a plurality of first connecting rods and second connecting rods fixedly mounted on the surface of the support rod in a circumferential array.
[0008] A pipette fixing structure, comprising a first arc-shaped fixing plate, a second arc-shaped fixing plate, and a limiting plate fixedly installed on the lower surface of the second arc-shaped fixing plate, wherein the surface of the limiting plate is provided with a U-shaped groove for the pipette needle to pass through.
[0009] The assembly structure includes a plug-in cylinder fixedly installed on one side of the first arc-shaped fixing plate and the second arc-shaped fixing plate respectively, a plug-in post fixedly installed on one end of the first connecting rod and the second connecting rod, and a limiting component provided on the surface of the plug-in post.
[0010] A protective structure is provided on the surface of the base to protect the support frame.
[0011] Preferably, the limiting component includes a clearance groove formed at one end of the plug post, a strip groove formed on the inner wall of the clearance groove, a spring sheet fixedly installed on the inner wall of the strip groove, and a plug block fixedly installed on the surface of the spring sheet.
[0012] Preferably, the inner wall of the plug tube has a through hole for the plug block to pass through.
[0013] Preferably, the inner wall of the plug tube allows the plug post to be inserted.
[0014] Preferably, the protective structure includes a protective cover, an internal thread formed on the inner wall of the protective cover, an external thread formed on the outer surface of the base, and an ultraviolet sterilization lamp fixedly installed on the top wall of the inner wall of the protective cover.
[0015] Preferably, the inner walls of the first arc-shaped fixing plate and the second arc-shaped fixing plate are both fixedly installed with anti-slip rubber plates, and the first arc-shaped fixing plate and the second arc-shaped fixing plate allow the pipette to be inserted. The first arc-shaped fixing plate and the second arc-shaped fixing plate have multiple different sizes.
[0016] The pipette holder of this utility model has the following advantages:
[0017] 1. This pipette holder, by means of a first arc-shaped fixing plate and a second arc-shaped fixing plate that are inclined at an angle to the support rod, concentrates the center of gravity of the pipette towards the base, reducing the risk of tipping. Furthermore, the insertion post and insertion tube of the assembly structure allow for quick assembly and disassembly, and can be adapted to different sizes of the first arc-shaped fixing plate and the second arc-shaped fixing plate, making it compatible with various pipette models.
[0018] 2. This pipette holder allows for one-click assembly and disassembly of the insert tube and insert post through an assembly structure, facilitating individual cleaning or replacement of damaged parts. Furthermore, the ultraviolet sterilization lamp located inside the protective cover can sterilize the pipettes in a closed environment, ensuring laboratory hygiene. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the orthographic section of the protective cover of this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the support frame of this utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the first arc-shaped fixing plate of this utility model from a first perspective.
[0024] Figure 5 This is a two-dimensional structural diagram of the first arc-shaped fixing plate of this utility model from a second perspective;
[0025] Figure 6 This is a three-dimensional structural diagram of the second arc-shaped fixing plate of this utility model;
[0026] Figure 7 for Figure 3 Enlarged structural diagram of point A in the middle.
[0027] The markings in the diagram are as follows: 10 Base, 11 Support rod, 12 First connecting rod, 13 Second connecting rod, 20 First arc-shaped fixing plate, 21 Second arc-shaped fixing plate, 22 Limiting plate, 23 U-shaped groove, 24 Anti-slip rubber plate, 30 Insertion tube, 31 Insertion post, 40 Clearance groove, 41 Spring sheet, 42 Insertion block, 43 Through hole, 50 Protective cover, 51 Ultraviolet sterilization lamp. Detailed Implementation
[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0032] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0033] To better understand the purpose, structure, and function of this utility model, a pipette holder of this utility model will be described in further detail below with reference to the accompanying drawings.
[0034] like Figure 1-7 As shown, the present invention provides a pipette holder, comprising: a support frame, a pipette fixing structure, an assembly structure, and a protective structure.
[0035] The support frame includes a base 10, a support rod 11 rotatably connected to the upper end of the base 10, and a plurality of first connecting rods 12 and second connecting rods 13 fixedly installed on the surface of the support rod 11 in a circumferential array. The bottom of the base 10 is provided with an anti-slip pad, and the first connecting rods 12 are located above the second connecting rods 13.
[0036] The pipette fixing structure includes a first arc-shaped fixing plate 20, a second arc-shaped fixing plate 21, and a limiting plate 22 fixedly installed on the lower surface of the second arc-shaped fixing plate 21. The surface of the limiting plate 22 is provided with a U-shaped groove 23 for the pipette needle to pass through.
[0037] The assembly structure includes a plug-in tube 30 fixedly installed on one side of the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21, a plug-in post 31 fixedly installed on one end of the first connecting rod 12 and the second connecting rod 13, and a limiting component provided on the surface of the plug-in post 31. The inner wall of the plug-in tube 30 allows the plug-in post 31 to be inserted. The plug-in post 31 on the first connecting rod 12 and the second connecting rod 13 is inserted into the plug-in tube 30 on the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21, respectively, so that the first arc-shaped fixing plate 20 and the first connecting rod 12 can be fixed together, and the second arc-shaped fixing plate 21 and the second connecting rod 13 can be fixed together.
[0038] The limiting component includes a relief groove 40 at one end of the plug 31, a strip groove on the inner wall of the relief groove 40, a spring sheet 41 fixedly installed on the inner wall of the strip groove, and a plug block 42 fixedly installed on the surface of the spring sheet 41. The inner wall of the plug tube 30 has a through hole 43 for the plug block 42 to pass through. Pressing the plug block 42 can drive the spring sheet 41 to bend and enter the relief groove 40. At this time, the plug 31 can smoothly enter the plug tube 30. When the plug 31 enters the plug tube 30 and the plug block 42 enters the through hole 43, the spring sheet 41 returns to its original position, thereby driving the plug block 42 into the through hole 43, thus limiting the plug 31.
[0039] The inner walls of the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 are both fixedly equipped with anti-slip rubber plates 24. The first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 allow the pipette to be inserted. The first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 have multiple different sizes. When the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 are respectively installed on the first connecting rod 12 and the second connecting rod 13 using the assembly structure, the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 will be inclined to the support rod 11. When the pipette is placed on the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21, the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 will clamp and fix the pipette. The inclined first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 will cause the center of gravity of the device to be oriented towards the bottom, which will improve the stability of the device.
[0040] When the pipette is placed in the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21, the anti-slip rubber plate 24 can increase friction and prevent the pipette from sliding. At this time, the pipette needle will enter the U-shaped groove 23, so the limiting plate 22 can be used to support the pipette.
[0041] When dealing with different models of pipettes, the assembly structure allows for the replacement of different sizes of the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21, thus enabling the replacement of pipettes of different sizes. Furthermore, the detachable first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 facilitate the disinfection of the device and the replacement of damaged parts.
[0042] A protective structure is installed on the surface of the base 10 to protect the support frame. The protective structure includes a protective cover 50, an internal thread on the inner wall of the protective cover 50, an external thread on the outer surface of the base 10, and an ultraviolet sterilization lamp 51 fixedly installed on the inner top wall of the protective cover 50. A charging interface is provided on the side wall of the protective cover 50. The ultraviolet sterilization lamp 51 is started by a timer switch or remote control. After the protective cover 50 is screwed into the base 10, the protective cover 50 will protect the pipette fixing structure, preventing the pipette from being exposed to the outside world and accumulating dust. After the protective cover 50 protects the pipette, the ultraviolet sterilization lamp 51 can be turned on to sterilize the pipette.
[0043] How it works:
[0044] Pipette fixation and stability control
[0045] Tilt clamping design:
[0046] The first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 form an inclined angle with the support rod 11 through the assembly structure, so that the pipette is stored in a natural inclined state. The inclined angle concentrates the center of gravity of the pipette towards the base 10. Combined with the anti-slip design of the base 10, the risk of tipping is effectively reduced.
[0047] 2. Modular adaptation and quick assembly / disassembly
[0048] During installation: Press the plug block 42 to bend the spring plate 41, and the plug post 31 can be smoothly inserted into the plug tube 30; after locking: the spring plate 41 returns to its original position, and the plug block 42 is locked into the through hole 43 to achieve fixation, ensuring a stable connection. By replacing the first arc-shaped fixing plate 20 and the second arc-shaped fixing plate 21 of different sizes, it can be adapted to various brands and models of pipettes.
[0049] 3. Hygiene Protection and Disinfection Procedures
[0050] The pipette is completely sealed by screwing the external thread of the base 10 into the internal thread of the protective cover 50 to prevent dust contamination. After the protective cover 50 is closed, the ultraviolet sterilization lamp 51 is activated to sterilize and disinfect the surface of the pipette in the sealed space, ensuring experimental hygiene.
[0051] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A pipette holder, characterized in that, include: The support frame includes a base (10), a support rod (11) rotatably connected to the upper end of the base (10), and a plurality of first connecting rods (12) and second connecting rods (13) fixedly installed on the surface of the support rod (11) in a circumferential array. The pipette fixing structure includes a first arc-shaped fixing plate (20), a second arc-shaped fixing plate (21), and a limiting plate (22) fixedly installed on the lower surface of the second arc-shaped fixing plate (21), and the surface of the limiting plate (22) is provided with a U-shaped groove (23) for the pipette needle to pass through. The assembly structure includes a plug-in tube (30) fixedly installed on one side of the first arc-shaped fixing plate (20) and the second arc-shaped fixing plate (21), a plug-in post (31) fixedly installed on one end of the first connecting rod (12) and the second connecting rod (13), and a limiting component provided on the surface of the plug-in post (31). A protective structure is provided on the surface of the base (10) for protecting the support frame; The limiting component includes a relief groove (40) opened at one end of the plug (31), a strip groove opened on the inner wall of the relief groove (40), a spring plate (41) fixedly installed on the inner wall of the strip groove, and a plug block (42) fixedly installed on the surface of the spring plate (41). The inner wall of the plug tube (30) is provided with a through hole (43) for the plug block (42) to pass through. The inner wall of the plug tube (30) allows the plug (31) to be inserted. The inner walls of the first arc-shaped fixing plate (20) and the second arc-shaped fixing plate (21) are fixedly installed with anti-slip rubber plates (24), and the first arc-shaped fixing plate (20) and the second arc-shaped fixing plate (21) allow the pipette to be inserted. The first arc-shaped fixing plate (20) and the second arc-shaped fixing plate (21) have multiple different sizes.
2. The pipette holder according to claim 1, characterized in that: The protective structure includes a protective cover (50), an internal thread formed on the inner wall of the protective cover (50), an external thread formed on the outer surface of the base (10), and an ultraviolet sterilization lamp (51) fixedly installed on the inner top wall of the protective cover (50).