Multi-shaft stirring device and full-automatic analytical instrument

Abstract

The utility model belongs to the technical field of automatic analytical instruments, and relates to a multi-shaft stirring device and a full-automatic analytical instrument. The stirring support comprises a support body, a plurality of side supports are formed on the support body in an annular array mode, and stirring motors are connected to the side supports; the movable end of the stirring motor is connected with a stirring paddle; the upper part of the key shaft is detachably connected to the middle part of the stirring bracket; the mounting plate is connected to the stirring bracket; the control circuit board is connected to the mounting plate, and the control circuit board is located above the stirring bracket; the stirring motor is connected with the control circuit board through a wire, and the wire of the control circuit board penetrates out of a hollow hole of the hollow key shaft. After the structure is adopted, the stirring device has the beneficial effects that the plurality of stirring motors are arranged, and each stirring motor is independently connected with the control circuit board through the wire, so that the requirement of different stirring speeds of each stirring paddle can be met at the same time.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing sample and reagent mixtures in fully automated analytical instruments, specifically, it relates to a multi-axis stirring device and a fully automated analytical instrument. Background Technology

[0002] Most fully automated analytical instruments require a stirring device to mix the reaction solution for easier analysis. Typically, this stirring device uses multiple stirring shafts working together to achieve rapid mixing, thus improving analytical efficiency.

[0003] Most existing multi-shaft mixing devices use multiple agitators for mixing. The movement between multiple agitators is achieved by a single motor driving multiple agitators to rotate simultaneously via gear transmission. However, this method cannot meet the requirements of different speeds for each agitator, so improvements are needed. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this invention provides a multi-axis stirring device and a fully automatic analytical instrument, enabling different stirring speeds for each stirring blade.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] As one aspect of this utility model, a multi-axis stirring device is proposed, comprising:

[0007] A stirring support; the stirring support includes a support body, on which a plurality of side supports are formed in a circular array, and a stirring motor is connected to the side supports; the movable end of the stirring motor is connected to a stirring paddle.

[0008] A hollow key shaft, the upper part of which is detachably connected to the middle part of the stirring bracket;

[0009] Mounting plate, connected to the mixing support;

[0010] A control circuit board is connected to the mounting plate and is located above the stirring bracket; the stirring motor is connected to the control circuit board by wires, and the wires of the control circuit board pass through the hollow holes of the hollow key shaft.

[0011] Optionally, a mounting groove is formed on the side support, and the stirring motor is connected to the mounting groove.

[0012] Optionally, the system may also include one or more motor mounting bases connected to the mounting slot; the stirring motor is connected to a corresponding motor mounting base.

[0013] Optionally, the moving end of the stirring motor is positioned downwards; the bottom of the mounting groove is provided with a first clearance hole for the moving end of the stirring motor to make way.

[0014] Optionally, a clamp is also included, wherein the upper part of the hollow key shaft is detachably connected to the middle part of the stirring support via the clamp.

[0015] Optionally, the clamp includes a clamp body, a connecting through hole formed in the middle of the clamp body, and the upper part of the hollow key shaft is connected to the connecting through hole; an extrusion groove is formed on the side of the clamp body, the extrusion groove penetrates the clamp body and communicates with the connecting through hole; the clamp body is provided with a screw hole for tightening or loosening the extrusion groove, and a bolt is connected in the screw hole; a clamp mounting hole is formed in the middle of the stirring bracket, and a limiting boss is formed at the bottom of the clamp body to cooperate with the clamp mounting hole, and both the connecting through hole and the extrusion groove penetrate the limiting boss.

[0016] Optionally, the mounting plate includes a mounting plate body, on which a plurality of connecting pieces are formed, the number of connecting pieces being the same as the number of side brackets; the connecting pieces are detachably connected to the side of the corresponding side bracket.

[0017] Optionally, the connecting piece is provided with a first mounting hole, and the side of the side bracket is provided with a threaded hole that mates with the corresponding first mounting hole. When the mounting plate is assembled onto the stirring bracket, the first mounting hole and the corresponding threaded hole are connected by fasteners. The upper surface of the mounting plate body is provided with a plurality of connecting columns spaced apart, and the control circuit board is detachably connected to the connecting columns.

[0018] Optionally, a first clearance hole is provided in the middle of the mounting plate body; a second clearance hole is provided in the middle of the control circuit board.

[0019] As another aspect of this utility model, a fully automatic analytical instrument is proposed, which includes the multi-axis stirring device as described above.

[0020] The multi-axis stirring device and fully automatic analytical instrument of this utility model have the following advantages: 1. By setting up several stirring motors, each of which is individually connected to the control circuit board via wires, the different stirring speed requirements of each stirring blade can be met simultaneously. 2. The control circuit board is located in the middle of the stirring support to avoid interference; the wires of each stirring motor are directly or indirectly connected to the control circuit board, and the integration of the control circuit board reduces the number of wires passing through the hollow key shaft; in addition, multiple stirring blades require cleaning, and if the control circuit board is placed at the bottom of the stirring device, there is a risk of cleaning liquid splashing onto the control circuit board and causing damage. Placing the control circuit board at the top avoids this risk. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0022] Figure 1 This is a three-dimensional structural view of the multi-shaft stirring device of this utility model;

[0023] Figure 2 This is an exploded front view of the multi-shaft stirring device of this utility model;

[0024] Figure 3 This is an exploded bottom view of the multi-shaft stirring device of this utility model;

[0025] Figure 4 This is a cross-sectional view of the multi-axis stirring device of this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] One embodiment of this application provides a multi-axis stirring device, such as... Figures 1-4 As shown, it includes: a stirring bracket 1, which serves a supporting function; the stirring bracket 1 includes a bracket body 11, on which at least three side brackets 12 are formed in a circular array, and mounting grooves 13 are formed on the side brackets 12. One or more motor mounting seats 14 are connected to the mounting grooves 13 by fasteners. When there are two or more motor mounting seats 14, the multiple motor mounting seats 14 are spaced apart, and there is sufficient clearance space between two adjacent motor mounting seats 14; a stirring motor 15 is connected to the motor mounting seat 14, and the movable end of the stirring motor 15 is set downward; a stirring paddle 16 is connected to the movable end of the stirring motor 15; the bottom of the mounting groove 13 is provided with a first clearance hole 131 for the movable end of the stirring motor 15 to make way, so as to facilitate the installation of the stirring paddle 16;

[0028] The hollow key shaft 2, it should be noted, refers to a shaft with keyways on its surface, which is existing technology and will not be elaborated further; in this embodiment, the key shaft 2 has two keyways, which are symmetrically arranged; the upper part of the key shaft 2 is detachably connected to the middle part of the stirring bracket 1 by a clamp 3; this makes the connection between the stirring bracket 1 and the hollow key shaft 2 more stable; the clamp 3 includes a clamp body 31, the middle part of which forms a connecting through hole 35, and the upper part of the hollow key shaft 2 is connected to the connecting through hole 35; the side of the clamp body 31 is provided with a pressing groove 32, which penetrates the clamp body 31 and communicates with the connecting through hole 35; the clamp body 31 is provided with a screw hole 33 for pressing or loosening the pressing groove 32, so that A bolt is connected to the screw hole 33. By adjusting the bolt, the extrusion groove 32 is tightened or loosened, thereby achieving the clamping or loosening of the hollow key shaft 2 by the connecting through hole 35. A clamp mounting hole 17 is provided in the middle of the stirring bracket 1. The bottom of the clamp body 31 has a limiting boss 34 that matches the clamp mounting hole 17. Both the connecting through hole 35 and the extrusion groove 32 pass through the limiting boss 34. After the upper part of the hollow key shaft 2 is connected to the connecting through hole 35, the bolt squeezes the extrusion groove 32, so that the hollow key shaft 2 is fixedly connected to the clamp 3. Then, the limiting boss 34 matches the clamp mounting hole 17, and the clamp body 31 is connected to the stirring bracket 1 by fasteners. This design makes the connection between the hollow key shaft 2 and the stirring bracket 1 more reliable.

[0029] Mounting plate 4 is connected to stirring bracket 1;

[0030] The control circuit board 5 is connected to the mounting plate 4 and is located above the stirring bracket 1. The stirring motor 15 is connected to the control circuit board 5 by wires, and the wires of the control circuit board pass through the hollow hole of the hollow key shaft. It should be noted that the structure and working process of the control circuit board 5 and the stirring motor 15 are existing technologies and will not be described in detail. The focus of this application is: how to arrange the control circuit board 5 and the stirring motor 15 to achieve the preset stirring effect.

[0031] It should be noted that, since the key shaft 2 is hollow, the wires of the control circuit board 5 enter from the top of the key shaft 2 and exit from the bottom of the key shaft 2; the hollow key shaft 2 is used for the wiring; since the top of the key shaft 2 has a stirring motor 15 that drives the stirring paddle 16 to rotate, the key shaft 2 usually uses a hollow key shaft for wiring, and the hollow diameter of the key shaft is limited; therefore, the control circuit board 5 is located in the middle of the stirring bracket 1, not close to each stirring motor 15, and is fixed on the stirring bracket 1. The stirring motor 15 is directly or indirectly connected to the control circuit board 5 through wires, and after being integrated by the control circuit board 5, it exits through the hollow hole of the hollow key shaft 2, reducing the number of wires on the key shaft 2, reducing the risk of wire breakage, and at the same time avoiding the risk of the cleaning liquid of the stirring paddle 5 splashing onto the control circuit board 5 and causing damage to it.

[0032] In addition, the control circuit board 5 is located in the middle of the stirring bracket 1, not close to each stirring motor 15, to avoid interference; the wires of each stirring motor 15 are directly or indirectly connected to the control circuit board 5, and the number of wires passing through the hollow key shaft 2 is reduced by the integration of the control circuit board 5; in addition, multiple stirring paddles 16 need to be cleaned, and if the control circuit board 5 is placed at the bottom of the stirring device, there is a risk that the cleaning liquid will splash onto the control circuit board 5 and cause damage. Placing the control circuit board 5 at the top can avoid this risk.

[0033] In one embodiment, such as Figures 2-3 As shown, the mounting plate 4 includes a mounting plate body 41, with a first clearance hole 42 in the middle of the mounting plate body 41; the control circuit board 5 has a second clearance hole 51 in the middle of the control circuit board 5; both the first clearance hole 42 and the second clearance hole 51 are used for clearance of the clamp 3; a plurality of connecting pieces 43 are stamped on the mounting plate body 41, the number of connecting pieces 43 being the same as the number of side brackets 12; the connecting pieces 43 are detachably connected to the side of the corresponding side bracket 12 by fasteners; the connecting pieces 43 are provided with a first mounting hole 44, and the side of the side bracket 12 is provided with a threaded hole 45 that mates with the corresponding first mounting hole 44; when the mounting plate 4 is assembled onto the stirring bracket 1, the first mounting hole 44 and the corresponding threaded hole 45 are connected by screws, so that the mounting plate 4 and the stirring bracket 1 are detachably connected;

[0034] The upper surface of the mounting plate body 41 is provided with a plurality of connecting posts 46 at intervals. The lower surface of the control circuit board 5 is connected to the connecting posts 46 and connected by fasteners, so that the control circuit board 5 is connected to the mounting plate 4.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0038] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0039] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A multi-shaft stirring device, characterized in that, It includes: Stirring rack; The stirring support includes a support body, on which a plurality of side supports are formed in a circular array, and a stirring motor is connected to the side supports; the movable end of the stirring motor is connected to a stirring blade. A hollow key shaft, the upper part of which is detachably connected to the middle part of the stirring bracket; Mounting plate, connected to the mixing support; A control circuit board is connected to the mounting plate and is located above the stirring bracket; the stirring motor is connected to the control circuit board by wires, and the wires of the control circuit board pass through the hollow holes of the hollow key shaft.

2. The multi-shaft stirring device as described in claim 1, characterized in that, The side support has a mounting groove, and the stirring motor is connected to the mounting groove.

3. The multi-shaft stirring device as described in claim 2, characterized in that, It also includes one or more motor mounting bases, which are connected to the mounting slots; the stirring motor is connected to the corresponding motor mounting base.

4. The multi-shaft stirring device as described in claim 3, characterized in that, The moving end of the stirring motor is positioned downwards; the bottom of the mounting groove is provided with a first clearance hole for the moving end of the stirring motor to make way.

5. The multi-shaft stirring device as described in claim 1, characterized in that, It also includes a clamp, the upper part of which is detachably connected to the middle part of the stirring bracket via the clamp.

6. The multi-shaft stirring device as described in claim 5, characterized in that, The clamp includes a clamp body, a connecting through hole formed in the middle of the clamp body, and the upper part of the hollow key shaft is connected to the connecting through hole; an extrusion groove is formed on the side of the clamp body, the extrusion groove penetrates the clamp body and communicates with the connecting through hole; the clamp body is provided with a screw hole for tightening or loosening the extrusion groove, and a bolt is connected in the screw hole; a clamp mounting hole is formed in the middle of the stirring bracket, and a limiting boss is formed at the bottom of the clamp body to cooperate with the clamp mounting hole, and both the connecting through hole and the extrusion groove penetrate the limiting boss.

7. The multi-shaft stirring device as described in claim 1, characterized in that, The mounting plate includes a mounting plate body, on which a plurality of connecting pieces are formed, the number of connecting pieces being the same as the number of side brackets; the connecting pieces are detachably connected to the side of the corresponding side bracket.

8. The multi-shaft stirring device as described in claim 7, characterized in that, The connecting piece is provided with a first mounting hole, and the side of the side bracket is provided with a threaded hole that mates with the corresponding first mounting hole. When the mounting plate is assembled onto the stirring bracket, the first mounting hole and the corresponding threaded hole are connected by fasteners. The upper surface of the mounting plate body is provided with a plurality of connecting columns spaced apart, and the control circuit board is detachably connected to the connecting columns.

9. The multi-shaft stirring device as described in claim 7, characterized in that, The mounting plate body has a first clearance hole in the middle; the control circuit board has a second clearance hole in the middle.

10. A fully automated analytical instrument, characterized in that, It includes the multi-axis stirring device as described in any one of claims 1-9.

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