Electric pipette with charge display function
The design of the arc-shaped stop and magnetic attraction mechanism solves the problem of loose grip and drop of the electric pipette, achieving a stable grip and convenient operation, and provides a power display function, improving the stability and convenience of using the electric pipette.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RONGTAI BIOCHEMICAL ENG CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
Existing electric pipettes are prone to loosening and falling during handling, lacking an effective limiting mechanism, which affects the stability and safety of use.
It employs an arc-shaped blocking mechanism and an anti-clamping mechanism. The arc-shaped blocking mechanism blocks the hand, and the magnetic placement mechanism ensures a stable grip. It is also equipped with a touch panel that displays the battery level.
It effectively prevents the electric pipette from falling when the grip is loose, improving operational stability and safety, while also providing a convenient power display function for easy placement and operation.
Smart Images

Figure CN224585946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric pipette technology, and in particular to an electric pipette with a power display function. Background Technology
[0002] Electric pipettes are a common laboratory tool that uses electricity to precisely transfer liquids. They are widely used in fields such as biochemistry, molecular biology, and drug development. The working principle of an electric pipette is based on the principle of air pressure and motor drive technology. It contains a piston pump, which is driven by a motor to make the piston reciprocate in the pump chamber, generating positive and negative air pressure changes. When the piston moves upward, a negative pressure is formed in the pump chamber, which draws the liquid in the pipette into the pump chamber. When the piston moves downward, a positive pressure is formed in the pump chamber, which pushes the liquid out of the pipette. By controlling the speed of the motor and the stroke of the piston, the liquid can be transferred.
[0003] Among them, a search revealed Chinese patent CN220143425U, which discloses a novel electric pipette, including a handheld component and a pipetting component. The handheld component and the pipetting component are movably connected by a connecting component. The handheld component includes a handheld tube and a hook portion fixed to one side of the handheld tube. The pipetting component includes a pipetting housing, within which a positioning lower shell is fixedly connected. The connecting component includes upper and lower connecting tubes fixedly installed on the handheld component and a limiting member for limiting the separation of the upper and lower connecting tubes and the pipetting housing. One end of the upper and lower connecting tubes is inserted into the pipetting housing, and the limiting member is installed at that end. A pipetting tip spring is installed inside the pipetting housing, located between the upper and lower connecting tubes and the positioning lower shell. Both ends of the pipetting tip abut against the... The above-described structure includes the ends of the upper and lower connecting tubes and one side of the positioning lower shell. This structure effectively improves the user experience, ensures accurate installation of the pipette tip, and guarantees the normal operation of pipetting. However, the technical solution of the aforementioned patent relies on a handheld component for gripping and operation, using a hook-and-loop mechanism to limit and block the fingers. While the operation relies on the gripping force of the hand, the lack of a corresponding limiting mechanism means that the operator must maintain a constant grip, which does not effectively secure the operator's hand. Therefore, to advance industry technology and better achieve stability during gripping, preventing loosening and falling, and enhancing core technological competitiveness, this application proposes a new implementation scheme that differs from existing technologies by providing excellent hand resistance, thus preventing damage or falling when the grip becomes loose. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an apparatus to solve one or more problems in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electric pipette with a power display function includes:
[0007] Electric pipette body;
[0008] A pipette tip, which is fitted onto the lower end of the pipette tip of an electric pipette body;
[0009] An arc-shaped blocking mechanism is installed on the upper rear side of the electric pipette body;
[0010] An anti-clamping mechanism is fixedly connected to the inner side of the arc-shaped blocking mechanism;
[0011] A magnetic placement mechanism is threadedly connected to the upper end of the electric pipette body.
[0012] Furthermore, the electric pipette body includes an upper electric pipette body, the lower end of which is fixedly connected to a lower electric pipette body. A touch panel with a power display function is installed on the inner side of the upper end of the upper electric pipette body. An arc-shaped blocking mechanism is installed at the rear end of the upper electric pipette body. A magnetic placement mechanism is installed at the threaded hole at the upper end of the upper electric pipette body.
[0013] Furthermore, the arc-shaped blocking mechanism includes an arc-shaped baffle plate, with abutment rubber plates fixedly connected to both sides of the lower end of the arc-shaped baffle plate, and a screw mounting plate fixedly connected to the upper end of the arc-shaped baffle plate. Assembly screws are installed at the four corners of the screw mounting plate, and the screw mounting plate is mounted on the arc-shaped baffle plate by the assembly screws. An abutment clamping mechanism is fixedly connected to the arc-shaped inner side of the arc-shaped baffle plate.
[0014] Furthermore, the abutment clamping mechanism includes a rubber shell, the inside of which is provided with a storage cavity, and a plurality of metal springs are fixedly connected to the inner side of the storage cavity on the rubber shell, and the rubber shell is fixedly connected to the arc-shaped baffle plate.
[0015] Furthermore, the magnetic placement mechanism includes a wrapping sleeve, an adsorption magnet is fixedly connected to the inner rear end of the wrapping sleeve, and an assembly screw head is fixedly connected to the middle of the front end of the wrapping sleeve. The assembly screw head is threadedly connected to the arc-shaped shield plate.
[0016] Furthermore, the touch panel with power display function also includes an LCD screen module.
[0017] Furthermore, the arc-shaped baffle and the rubber shell are bonded together with adhesive, and the connection points are aligned.
[0018] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0019] 1. The arc-shaped blocking mechanism is installed on the upper rear side of the electric pipette body. It can act as a blockage at the rear. The clamping mechanism can be blocked by the arc-shaped blocking mechanism to abut against the person's hand, so that it will not fall and be damaged when the person's hand is loosened.
[0020] 2. The electric pipette body can be magnetically placed on the external magnetic panel for easy access and placement. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of an electric pipette with a power display function proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the combined structure of the arc-shaped blocking mechanism and the contact clamping mechanism of an electric pipette with a power display function proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the contact clamping mechanism of an electric pipette with a power display function proposed in this utility model;
[0024] Figure 4 This is a schematic diagram of the back structure of the magnetic placement mechanism of an electric pipette with a power display function proposed in this utility model;
[0025] Figure 5 This is a schematic diagram of the front structure of the magnetic placement mechanism of an electric pipette with a power display function proposed in this utility model.
[0026] The attached diagram is labeled as follows: 1. Arc-shaped shield; 11. Contact rubber plate; 12. Screw mounting plate; 13. Assembly screw; 2. Upper body of the electric pipette; 21. Touch panel with power display function; 3. Encasing septum; 31. Assembly screw head; 32. Adsorption magnet; 4. Lower body of the electric pipette; 5. Pipette tip; 6. Rubber bladder; 61. Storage cavity; 62. Metal spring. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0028] Reference Figures 1-5 An electric pipette with a power display function includes an electric pipette body, a pipette tip 5, an arc-shaped blocking mechanism, an abutment clamping mechanism, and a magnetic placement mechanism.
[0029] The pipette tip 5 is fitted onto the lower end of the electric pipette body. The electric pipette body can draw liquid through the pipette tip 5 at the lower end for pipetting operations. The arc-shaped blocking mechanism is installed on the upper rear side of the electric pipette body, which can act as a blocking mechanism at the rear. The contact clamping mechanism is fixed to the inner side of the arc-shaped blocking mechanism. The contact clamping mechanism can be pressed against the user's hand by the blocking mechanism of the arc-shaped blocking mechanism. The magnetic placement mechanism is threaded to the upper end of the electric pipette body. The electric pipette body can be placed on the external magnetic panel through the magnetic placement mechanism for easy handling and placement.
[0030] The electric pipette body includes an upper electric pipette body 2, and a lower electric pipette body 4 is fixedly connected to the lower end of the upper electric pipette body 2. The upper electric pipette body 2 and the lower electric pipette body 4 can be combined to form the handheld component and the pipetting component in the comparison document, which facilitates operation and pipetting. A touch panel 21 with a power display function is installed on the inner side of the upper end of the upper electric pipette body 2, which is convenient for personnel to view and control the operation. An arc-shaped blocking mechanism is installed at the rear end of the upper electric pipette body 2, which can effectively block the pipette and has a gap between it, allowing the user's fingers to pass through for gripping and operation. A magnetic placement mechanism is installed at the threaded hole at the upper end of the upper electric pipette body 2, which facilitates threaded installation and removal.
[0031] The touch panel 21 with battery level display also includes an LCD screen module for easy time display.
[0032] Reference Figures 1-3 The arc-shaped blocking mechanism includes an arc-shaped baffle plate 1. Abutment rubber plates 11 are fixed to both sides of the lower end of the arc-shaped baffle plate 1 for effective elastic abutment. A screw mounting plate 12 is fixed to the upper end of the arc-shaped baffle plate 1 for corresponding installation. Assembly screws 13 are installed at the four corners of the screw mounting plate 12. The screw mounting plate 12 can be threaded onto the arc-shaped baffle plate 1 using the assembly screws 13, facilitating installation and removal. An abutment clamping mechanism is fixed to the inner arc of the arc-shaped baffle plate 1. The arc-shaped baffle plate 1 can be elastically blocked and positioned using the inner abutment clamping mechanism.
[0033] The clamping mechanism includes a rubber shell 6, which is adhered and fixed to the arc-shaped baffle 1. The rubber shell 6 can be stably installed and placed. The interior of the rubber shell 6 has a storage cavity 61. The rubber shell 6 can be effectively and elastically stored through the area of the internal storage cavity 61. Multiple metal springs 62 are fixed to the inner side of the storage cavity 61 on the rubber shell 6. The rubber shell 6 can elastically abut against the multiple metal springs 62 inside. This effectively and elastically abuts against the person's hand, making it easy to hold and operate. It will not fall off when released.
[0034] The curved baffle plate 1 and the rubber shell 6 are connected by adhesive, and the joints are aligned to facilitate bonding and fixation. The alignment of the joints ensures that there will be no obstruction during use.
[0035] Reference Figures 1-3 The magnetic placement mechanism includes a wrapping sleeve 3. An adsorption magnet 32 is fixed to the inner rear end of the wrapping sleeve 3. The wrapping sleeve 3 can be magnetically fixed to an external adsorption metal plate through the adsorption magnet 32, which facilitates magnetic installation and placement. An assembly screw head 31 is fixed to the middle of the front end of the wrapping sleeve 3. The wrapping sleeve 3 can be easily assembled by screw rotation through the assembly screw head 31 at the front end. The assembly screw head 31 is threadedly connected to the arc-shaped baffle plate 1. The threaded connection facilitates installation and disassembly.
[0036] The working principle of this embodiment is as follows: When in use, the electric pipette body can draw liquid through the pipette tip 5 at the lower end for pipetting operations. The arc-shaped blocking mechanism is installed on the upper rear side of the electric pipette body and can play a blocking role at the rear. The abutment clamping mechanism can abut against the person's hand through the blocking of the arc-shaped blocking mechanism. The electric pipette body can be attached to the external adsorbable panel for placement through the magnetic placement mechanism, which is convenient for people to pick up and place.
[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An electric pipette with a power display function, characterized in that, include: Electric pipette body; The pipette tip (5) is sleeved and installed on the lower end of the electric pipette body; An arc-shaped blocking mechanism is installed on the upper rear side of the electric pipette body; An anti-clamping mechanism is fixedly connected to the inner side of the arc-shaped blocking mechanism; A magnetic placement mechanism is threadedly connected to the upper end of the electric pipette body.
2. The electric pipette with the electric quantity display function according to claim 1, characterized in that, The electric pipette body includes an upper electric pipette body (2), the lower end of which is fixedly connected to a lower electric pipette body (4). A touch panel (21) with a power display function is installed on the inner side of the upper end of the upper electric pipette body (2). An arc-shaped blocking mechanism is installed at the rear end of the upper electric pipette body (2). A magnetic placement mechanism is installed at the threaded hole at the upper end of the upper electric pipette body (2).
3. The electric pipette with the charge display function according to claim 2, wherein The arc-shaped blocking mechanism includes an arc-shaped baffle plate (1), with abutment rubber plates (11) fixedly connected to both sides of the lower end of the arc-shaped baffle plate (1), and a screw mounting plate (12) fixedly connected to the upper end of the arc-shaped baffle plate (1). Assembly screws (13) are installed at the four corners of the screw mounting plate (12), and the screw mounting plate (12) is mounted on the arc-shaped baffle plate (1) by the assembly screws (13). An abutment clamping mechanism is fixedly connected to the arc-shaped inner side of the arc-shaped baffle plate (1).
4. The electric pipette with the charge display function according to claim 3, wherein The abutment clamping mechanism includes a rubber shell (6), and the inside of the rubber shell (6) is provided with a storage cavity (61). Multiple metal springs (62) are fixedly connected to the inner side of the storage cavity (61) on the rubber shell (6). The rubber shell (6) is fixedly connected to the arc-shaped baffle plate (1).
5. The electric pipette with the charge display function according to claim 1, wherein The magnetic placement mechanism includes a wrapping sleeve (3), an adsorption magnet (32) is fixedly connected to the inner rear end of the wrapping sleeve (3), and an assembly screw head (31) is fixedly connected to the middle of the front end of the wrapping sleeve (3). The assembly screw head (31) is threadedly connected to the arc-shaped baffle plate (1).
6. The electric pipette with the charge display function according to claim 2, wherein The touch panel (21) with power display function also includes an LCD screen module.
7. An electric pipette with a power display function according to claim 3, characterized in that, The arc-shaped shield (1) and the rubber shell (6) are connected by adhesive and the connection is aligned.