Mixed reagent stirring device

Abstract

The utility model discloses a mixed reagent stirring device which comprises a base, a driving motor is arranged in the base, a gear is connected to the output end of the driving motor, a rotary gear bearing is installed on the top of the base, an outer ring of the rotary gear bearing is fixed relative to the base, and an inner ring of the rotary gear bearing is provided with meshing teeth and meshed with the gear. A stirring barrel is inserted into the top of an inner ring of the rotary gear bearing, vertical rods are mounted on two side sections of two parts of the base, a stirring shaft is vertically arranged in the stirring barrel, a lifting frame is fixedly connected to the top of the stirring shaft, and the tops of the vertical rods on two sides of the lifting frame are connected; stirring paddles are fixedly mounted on the stirring shaft, a stirring cover is inserted into the top of the stirring barrel, and the stirring shaft penetrates through the stirring cover and is rotationally connected with the stirring cover; the problems that a traditional device is uneven in mixing, inconvenient to disassemble and assemble and poor in stability are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a mixing device for mixing reagents. Background Technology

[0002] In laboratory and medical testing processes, reagent mixing is a frequent operation. Traditional stirring devices generally adopt a "rotating impeller + fixed container" structure. Such devices have the following significant drawbacks: the rotation of a single impeller easily creates a central vortex, making it difficult for reagents at the edges to participate fully in mixing, especially for high-viscosity reagents or systems with large density differences, often requiring extended stirring time and resulting in low efficiency; the stirring container is usually fixed to the base with bolts or clips, requiring disassembly of each connection for cleaning or replacement, which is time-consuming and labor-intensive, and can easily lead to reagent residue or contamination due to improper operation; the impeller vibrates significantly during high-speed stirring, which may cause the container to shake, reagents to splash out, or even mechanical failure. Utility Model Content

[0003] To address the problems mentioned above, this utility model provides a mixing reagent stirring device, which effectively solves the problems of uneven mixing, inconvenient disassembly and assembly, and poor stability of traditional devices.

[0004] This utility model adopts the following technical solution: a mixing reagent stirring device, including a base, a built-in drive motor, a gear connected to the output end of the drive motor, a rotary gear bearing installed on the top of the base, the outer ring of the rotary gear bearing being fixed relative to the base, the inner ring having meshing teeth that mesh with the gear, a stirring tank being inserted into the top of the inner ring of the rotary gear bearing, vertical rods being installed on both sides of the base, a stirring shaft being vertically installed inside the stirring tank, a lifting frame being fixedly connected to the top of the stirring shaft, and the tops of the vertical rods on both sides of the lifting frame being connected; a stirring paddle being fixedly installed on the stirring shaft, a stirring cover being inserted into the top of the stirring tank, and the stirring shaft passing through the stirring cover and being rotatably connected to the stirring cover.

[0005] Furthermore, the bottom ends of the lifting frame are provided with insertion pins, and the top of the vertical rods on both sides are provided with grooves that are adapted to the insertion pins.

[0006] Furthermore, an anti-rotation positioning key is provided at the interface between the bottom of the mixing tank and the top of the inner ring of the rotary gear bearing, and a positioning groove adapted to the anti-rotation positioning key is correspondingly provided on the top of the inner ring of the rotary gear bearing.

[0007] Furthermore, the base surface is provided with cooling through holes for heat dissipation of the drive motor.

[0008] Furthermore, the stirring paddle includes a main stirring paddle and an auxiliary stirring paddle, which are cross-distributed at 90° and fixed to the stirring shaft, and are also inclined and fixed to the stirring shaft.

[0009] Furthermore, a handle is provided at the top of the lifting frame.

[0010] The advantages of this invention are as follows: Through a reverse design of "rotating bucket, stationary paddle," the overall rotation of the mixing bucket drives the reagent to flow throughout the entire surface, combined with the multi-directional cutting action of the stationary paddles, achieving 360° mixing without dead angles and avoiding reagent stagnation at the edges or insufficient mixing in the central area. The cross-tilted main and auxiliary stirring paddles forcibly break the laminar flow state, causing the reagent to form complex turbulence under the combined action of centrifugal force and paddle resistance, significantly improving mixing uniformity compared to traditional devices. The pin-groove structure of the lifting frame and vertical rod, along with the top handle, allows for quick one-handed loading and unloading of the mixing bucket, enabling cleaning or replacement without tools, greatly shortening the operation process. The anti-rotation positioning key and positioning groove work together to ensure high circumferential positioning accuracy when the mixing bucket rotates, preventing reagent splashing or equipment vibration caused by shaking, thus improving operational safety. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an exploded view of the structure of this utility model.

[0013] In the diagram, 1-base, 2-drive motor, 3-gear, 4-slewing gear bearing, 41-positioning groove.

[0014] 5-Mixing tank, 51-Anti-rotation positioning key, 6-Vertical rod, 7-Mixing shaft, 8-Lifting frame, 9-Mixing paddle, 91-Main mixing paddle, 92-Secondary mixing paddle, 10-Mixing cover, 11-Plug pin, 12-Mixing cover

[0015] - Groove, 13- Cooling through hole, 14- Handle. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0018] See Figure 1-2 As shown, a mixing reagent stirring device includes a base 1, a built-in drive motor 2, a gear 3 connected to the output end of the drive motor 2, a rotary gear bearing 4 installed on the top of the base 1, the outer ring of the rotary gear bearing 4 being fixed relative to the base 1, the inner ring having meshing teeth that mesh with the gear 3, a stirring tank 5 being inserted into the top of the inner ring of the rotary gear bearing 4, vertical rods 6 being installed on both sides of the base 1, a stirring shaft 7 being vertically installed inside the stirring tank 5, a lifting frame 8 being fixedly connected to the top of the stirring shaft 7, and the tops of the vertical rods 6 on both sides of the lifting frame 8 being connected to the stirring shaft 7; a stirring paddle 9 being fixedly installed on the stirring shaft 7, a stirring cover 10 being inserted into the top of the stirring tank 5, and the stirring shaft 7 passing through the stirring cover 10 and being rotatably connected to the stirring cover 10.

[0019] The bottom ends of the lifting frame 8 are provided with insertion pins 11, and the top of the vertical rods 6 on both sides are provided with grooves 12 that are compatible with the insertion pins 11; the mixing tank 5 can be disassembled without tools, shortening the cleaning time.

[0020] An anti-rotation positioning key 51 is provided at the insertion interface between the bottom of the mixing tank 5 and the top of the inner ring of the rotary gear bearing 4. A positioning groove 41 that matches the anti-rotation positioning key 51 is provided on the top of the inner ring of the rotary gear bearing 4 to ensure that there is no circumferential slippage when the mixing tank 5 rotates; this enhances equipment safety and prevents reagent spillage or mechanical failure caused by the displacement of the mixing tank 5.

[0021] The base 1 has cooling holes 13 on its surface for heat dissipation of the drive motor 2; this reduces the motor's operating temperature and extends its lifespan.

[0022] The stirring paddle 9 includes a main stirring paddle 91 and a secondary stirring paddle 92. The main stirring paddle 91 and the secondary stirring paddle 92 are cross-distributed at 90° and fixed to the stirring shaft 7. The main stirring paddle 91 and the secondary stirring paddle 92 are tilted and fixed to the stirring shaft 7. The cross-distribution allows the mixing area to cover the entire cross-section of the mixing tank, eliminating mixing blind spots, and providing stronger dispersion ability for high-viscosity reagents or solid-liquid mixtures, thereby improving mixing efficiency.

[0023] The top of the lifting frame 8 is equipped with a handle 14, which is used to lift the stirring shaft 7.

[0024] Working Principle: During installation: Align the anti-rotation positioning key 51 at the bottom of the mixing tank 5 with the positioning groove 41 of the inner ring of the rotary gear bearing 4, and insert it vertically. The insertion pin 11 of the lifting frame 8 will automatically fall into the groove 12 of the vertical rod 6, completing the mechanical locking and ensuring that the stirring shaft 7 remains stable. During disassembly: Lift the device using the handle 14 at the top of the lifting frame 8. The insertion pin 11 will disengage from the groove 12, allowing the mixing tank 5 and stirring shaft 7 to be removed as a whole for cleaning or replacement. After the drive motor 2 built into the base 1 starts, it drives the inner ring of the rotary gear bearing 4 to rotate through the meshing teeth of the output gear 3. Since the mixing tank 5 is inserted and fixed to the top of the inner ring of the bearing, it rotates synchronously with the inner ring. At this time, the reagent in the mixing tank 5 diffuses towards the tank wall under the action of centrifugal force, forming a circumferential tangential flow. At the same time, the stirring shaft 7 is fixed to the top of the vertical rods 6 on both sides by the lifting frame 8, keeping it stationary. The stirring paddle 9 on the stirring shaft 7 remains stationary, which obstructs and cuts the rotating reagent, forcing the fluid to form radial turbulence and axial convection between the barrel wall and the paddle, thereby achieving efficient mixing of the reagent.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mixing apparatus for reagents, characterized in that: The system includes a base (1), which has a built-in drive motor (2). The output end of the drive motor (2) is connected to a gear (3). A rotary gear bearing (4) is installed on the top of the base (1). The outer ring of the rotary gear bearing (4) is fixed relative to the base (1), and the inner ring has meshing teeth. The inner ring of the rotary gear bearing (4) meshes with the gear (3). A stirring tank (5) is inserted into the top of the inner ring of the rotary gear bearing (4). Vertical rods (6) are installed on both sides of the base (1). A stirring shaft (7) is vertically installed inside the stirring tank (5). A lifting frame (8) is fixedly connected to the top of the stirring shaft (7). The top of the vertical rods (6) on both sides of the lifting frame (8) is connected. A stirring paddle (9) is fixedly installed on the stirring shaft (7). A stirring cover (10) is inserted into the top of the stirring tank (5). The stirring shaft (7) passes through the stirring cover (10) and is rotatably connected to the stirring cover (10).

2. The mixing reagent stirring device according to claim 1, characterized in that: The lifting frame (8) has pins (11) at both ends of its bottom, and the top of the vertical rods (6) on both sides has grooves (12) that are compatible with the pins (11).

3. The mixing reagent stirring device according to claim 2, characterized in that: An anti-rotation positioning key (51) is provided at the insertion interface between the bottom of the mixing tank (5) and the top of the inner ring of the rotary gear bearing (4). A positioning groove (41) adapted to the anti-rotation positioning key (51) is correspondingly opened at the top of the inner ring of the rotary gear bearing (4).

4. The mixing reagent stirring device according to claim 3, characterized in that: The base (1) has cooling through holes (13) on its surface for heat dissipation of the drive motor (2).

5. The mixing reagent stirring device according to claim 4, characterized in that: The stirring paddle (9) includes a main stirring paddle (91) and a secondary stirring paddle (92). The main stirring paddle (91) and the secondary stirring paddle (92) are cross-distributed at 90° and fixed to the stirring shaft (7). The main stirring paddle (91) and the secondary stirring paddle (92) are fixed to the stirring shaft (7) at an angle.

6. The mixing reagent stirring device according to claim 5, characterized in that: The lifting frame (8) is provided with a handle (14) at the top.

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