Efficient stirring device

Abstract

The utility model relates to an efficient stirring device which comprises a central connecting frame and a pair of stirring mechanisms, and each stirring mechanism comprises a rack, a stirring rod assembly and a driving assembly; the rack comprises a main frame, an auxiliary frame and a stand column. Bearings are arranged at the corresponding positions of the main frame and the auxiliary frame. The stirring rod assembly comprises a stirring gear and a stirring rod; the stirring gear is rotatably mounted on the main frame and the auxiliary frame in a penetrating manner through a bearing; the stirring rod is detachably inserted into the lower end of the stirring gear; the driving assembly comprises a driving motor and a driving gear mounted on an output shaft of the driving motor; and the driving gear is meshed with the tooth part on the stirring gear. According to the efficient stirring device, the structural design that one driving motor drives two stirring rods to stir at the same time and one stirring device is provided with two stirring assemblies is achieved in a gear transmission mode, on the basis that the structure is compact and the rotating speed is stable, the speed limitation is broken, the stirring operation efficiency is greatly improved, and the stirring efficiency is improved. Meanwhile, all parts of the device are convenient to disassemble, assemble, replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical instruments, in particular to a high-efficiency stirring device for mixing samples or reagents released into a reaction cup by a high-speed biochemical analyzer. Background Art

[0002] Biochemical analyzers are divided into functional systems, and their structural components mainly include sample addition system, stirring and mixing system, incubation system, test result reading system and cleaning system. Among them, the stirring and mixing system is an important component, and its main function is to stir and mix the samples or reagents released into the reaction cup to ensure the uniformity of the solution reaction and the accuracy of the test results. The stirring device structure on traditional biochemical instruments is generally a DC micromotor driving a stirring rod, and the stirring rod is directly fixed on the shaft of the micromotor with a top screw. When used in high-speed biochemical analyzers, this structure is not only limited by the motor speed, but also the one-to-one structural design is prone to the top screw tilting or tilting, which directly affects the stirring efficiency and effect. At the same time, it is not convenient for component disassembly, replacement and daily maintenance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of limited stirring speed, unsatisfactory stirring efficiency and stirring effect, and unstable fixing method of the stirring rods caused by the one-to-one correspondence structure of the motor stirring rods matched with the existing high-speed biochemical analyzer, and to provide a high-efficiency stirring device, which realizes a structural design in which a driving motor drives two stirring rods to stir at the same time through a gear transmission method, and a set of stirring devices is equipped with two groups of stirring components. On the basis of compact structure and stable speed, the speed limitation is broken, the efficiency of the stirring operation is greatly improved, and at the same time, it is convenient for the disassembly, replacement, repair and maintenance of various components of the device.

[0004] The high-efficiency stirring device comprises a central connecting frame and a pair of stirring mechanisms fixedly mounted on both sides of the central connecting frame, wherein the stirring mechanism comprises a frame, a stirring rod assembly and a driving assembly; the frame comprises a main frame for mounting and fixing the stirring rod assembly and the driving assembly, a sub-frame for connecting the central connecting frame, and a column for connecting and fixing the main frame and the sub-frame; bearings are provided at corresponding positions of the main frame and the sub-frame; the stirring rod assembly comprises a stirring gear and a stirring rod; the stirring gear is rotatably mounted on the main frame and the sub-frame through bearings, and the stirring rod is detachably inserted at the lower end of the stirring gear; the driving assembly comprises a driving motor and a driving gear mounted on the output shaft of the driving motor; the driving gear is arranged between the main frame and the sub-frame, and meshes with the tooth portion on the stirring gear.

[0005] Specifically, the two stirring gears are symmetrically installed on both sides of the driving component.

[0006] Furthermore, the stirring gear is in the shape of a hollow column, and is provided with a tooth portion for meshing with the driving gear. An inner hole for inserting a stirring rod is opened in the center of the stirring gear.

[0007] Furthermore, a sensing sheet is installed on the lower surface of the driving gear, a sensing groove is opened on the bottom surface of the sub-frame, and a sensor for collecting the sensing sheet signal is arranged on the sensing groove.

[0008] Furthermore, a host connector for connecting to a driving mechanical arm of a fully automatic biochemical analyzer is provided on the upper portion of the central connecting frame.

[0009] The utility model discloses a high-efficiency stirring device, which overcomes the defects of limited stirring speed, unsatisfactory stirring efficiency and stirring effect, and unstable fixing method of the stirring rods caused by the one-to-one correspondence structure of the motor stirring rods matched with the existing high-speed biochemical analyzer. The utility model realizes a structural design of a driving motor driving two stirring rods to stir at the same time and a set of stirring devices assembling two groups of stirring components through a gear transmission method. On the basis of compact structure and stable rotation speed, the speed limitation is broken, the efficiency of the stirring operation is greatly improved, and at the same time, the disassembly, assembly, replacement, repair and maintenance of various components of the device are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following is a further description of a high-efficiency stirring device of the utility model in conjunction with the accompanying drawings:

[0011] Figure 1 It is the overall structural schematic diagram of the high-efficiency stirring device;

[0012] Figure 2 It is a three-dimensional structural schematic diagram of the stirring mechanism of the high-efficiency stirring device;

[0013] Figure 3 yes Figure 2 Schematic diagram of the plan structure viewed from above.

[0014] In the figure:

[0015] 1- Central connecting frame, 2- Stirring mechanism;

[0016] 11-main machine connecting piece; 21-frame, 22-stirring rod assembly, 23-driving assembly;

[0017] 211-main frame, 212-sub-frame, 213-column, 214-bearing, 215-sensing slot, 216-sensor; 221-stirring gear, 222-stirring rod, 223-tooth portion, 224-inner hole; 231-motor, 232-driving gear, 233-sensing sheet. DETAILED DESCRIPTION

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] The technical solution of the utility model is further described below with specific embodiments, but the protection scope of the utility model is not limited to the following embodiments.

[0021] Implementation method 1: Figures 1 to 3 As shown, the high-efficiency stirring device includes a central connecting frame 1, a pair of stirring mechanisms 2 fixedly mounted on both sides of the central connecting frame 1, wherein the stirring mechanism 2 includes a frame 21, a stirring rod assembly 22 and a driving assembly 23; the frame 21 includes a main frame 211 for mounting and fixing the stirring rod assembly 22 and the driving assembly 23, a sub-frame 212 for connecting the central connecting frame 1, and a column 213 for connecting and fixing the main frame 211 and the sub-frame 212; the main frame 211 and the sub-frame 212 are provided with bearings 21 at corresponding positions 4; the stirring rod assembly 22 includes a stirring gear 221 and a stirring rod 222; the stirring gear 221 is rotatably mounted on the main frame 211 and the auxiliary frame 212 through a bearing 214, and the stirring rod 222 is detachably inserted at the lower end of the stirring gear 221; the driving assembly 23 includes a driving motor 231 and a driving gear 232 mounted on the output shaft of the driving motor 231; the driving gear 232 is arranged between the main frame 211 and the auxiliary frame 212, and meshes with the tooth portion 223 on the stirring gear 221. The two stirring gears 221 are symmetrically mounted on both sides of the driving assembly 23. The upper part of the central connecting frame 1 is provided with a host connecting piece 11 for connecting the driving mechanical arm of the fully automatic biochemical analyzer.

[0022] Embodiment 2: The stirring gear 221 of the high-efficiency stirring device is in the shape of a hollow column. The stirring gear 221 is provided with a tooth portion 223 for meshing with the driving gear 232. The stirring gear 221 is provided with an inner hole 224 for inserting the stirring rod 222 in the center. A protruding rack, spring or rubber strip can be added to the inner wall of the hole to ensure the fixing firmness of the stirring rod while facilitating the installation of the stirring rod. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0023] Embodiment 3: The driving gear 232 of this high-efficiency stirring device is provided with a sensing sheet 233 on its lower surface, and the sub-frame 212 is provided with a sensing slot 215 on its lower surface, and a sensor 216 for collecting the signal of the sensing sheet 233 is provided on the sensing slot. It is ensured that during the rotation of the driving gear, the sensing sheet can smoothly pass through the position of the sensor and be identified, and then the rotation speed is output in real time, ensuring the constant and accurate stirring speed. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0024] During operation: stirring and washing actions are performed simultaneously in two groups of reaction cups and are replaced with each other under the control of the driving robot arm. The driving motor drives the driving gear to move, and the driving motor meshes with the teeth of two symmetrical stirring gears, and drives and transmits to the two stirring rods at the same and constant speed for efficient stirring.

[0025] This high-efficiency stirring device overcomes the structural design of using gear transmission to realize one driving motor to simultaneously drive two stirring rods for stirring, and one set of stirring device is equipped with two sets of stirring components. On the basis of compact structure and stable speed, it breaks the speed limitation, greatly improves the efficiency of the stirring operation, and facilitates the disassembly, replacement, repair and maintenance of various components of the device.

[0026] The above description shows the main features, basic principles, and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments or embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the above embodiments or embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency stirring device, characterized in that: It comprises a central connecting frame (1), and a pair of stirring mechanisms (2) fixedly mounted on both sides of the central connecting frame (1), wherein the stirring mechanism (2) comprises a frame (21), a stirring rod assembly (22) and a driving assembly (23); The frame (21) comprises a main frame (211) for mounting and fixing the stirring rod assembly (22) and the driving assembly (23), a sub-frame (212) for connecting the central connecting frame (1), and a column (213) for connecting and fixing the main frame (211) and the sub-frame (212); bearings (214) are provided at corresponding positions of the main frame (211) and the sub-frame (212); The stirring rod assembly (22) comprises a stirring gear (221) and a stirring rod (222); the stirring gear (221) is rotatably mounted on the main frame (211) and the auxiliary frame (212) via a bearing (214), and the stirring rod (222) is detachably inserted at the lower end of the stirring gear (221); The driving assembly (23) comprises a driving motor (231) and a driving gear (232) mounted on an output shaft of the driving motor (231); the driving gear (232) is arranged between the main frame (211) and the auxiliary frame (212), and meshes with a tooth portion (223) on the stirring gear (221).

2. The high-efficiency stirring device according to claim 1 is characterized in that: The two stirring gears (221) are symmetrically mounted on both sides of the driving assembly (23).

3. The high-efficiency stirring device according to claim 2 is characterized in that: The stirring gear (221) is in the shape of a hollow column. The stirring gear (221) is provided with a tooth portion (223) for meshing with the driving gear (232). An inner hole (224) for inserting the stirring rod (222) is provided in the center of the stirring gear (221).

4. The high-efficiency stirring device according to claim 3 is characterized in that: A sensing sheet (233) is installed on the lower surface of the driving gear (232), a sensing slot (215) is opened on the bottom surface of the sub-frame (212), and a sensor (216) for collecting signals from the sensing sheet (233) is provided on the sensing slot.

5. The high-efficiency stirring device according to claim 4 is characterized in that: A connecting piece (11) for connecting to a driving mechanical arm of a fully automatic biochemical analyzer is provided on the upper portion of the central connecting frame (1).

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