CN220047802U - Stirring device - Google Patents

Abstract

The utility model relates to a stirring device which comprises a base, a lifting mechanism fixedly arranged on the base and a stirrer fixed on the lifting mechanism, wherein the stirrer comprises a stirring motor and a stirring piece in driving connection with the stirring motor, the stirring piece comprises a rod body, a plurality of wing plates are arranged on the peripheral wall of the lower part of the rod body, the plurality of wing plates are uniformly distributed on the peripheral side of the rod body, each wing plate extends along the radial direction of the rod body, the height of each wing plate extending along the radial direction of the rod body is gradually reduced from the upper end to the lower end, and the stirring device can perform good stirring and dispersing effects on latex microsphere precipitation at the bottom of a centrifuge tube.

Description

Stirring device

Technical Field

The utility model relates to the technical field of experimental instruments, in particular to a stirring device.

Background

Latex microspheres generally refer to polystyrene latex microspheres produced by polymer particle manufacturing techniques, and are used for agglutination reactions such as latex turbidimetry. For example, in the development process of an immunonephelometric reagent, coating and sealing operation are required for bare latex microspheres, and after the coating and sealing of the microspheres are finished, excessive protein and sealing agent are usually removed by a high-speed centrifugation method, and the latex microspheres precipitate at the bottom of a centrifuge tube after centrifugation and are required to be dispersed into a solution again after stirring and crushing. At present, latex microspheres are stirred by a stirring rod manually, and the manual stirring method mainly has the following two defects that a great deal of time is required for dispersing the latex microspheres by manual stirring, and the stirring efficiency is low; and the other is that different operators have different technical actions, so that batch-to-batch differences are easy to generate.

In the prior art, the method for dispersing and suspending the microspheres in the liquid by ultrasonic is also adopted, the power of ultrasonic dispersion is difficult to control, and when the ultrasonic power is insufficient, the microspheres cannot be fully dispersed; when the ultrasonic power is too high, the antibody or the blocking agent can be caused to fall off from the surface of the microsphere, and the microsphere is easy to aggregate and precipitate.

In addition, although there is an electric stirrer in the prior art, since the bottom of the centrifuge tube in the prior art is generally in a conical or hemispherical structure, the electric stirrer in the prior art is difficult to stir and disperse the latex microsphere sediment at the bottom of the centrifuge tube well, so that a new stirring device is needed to stir and disperse the latex microsphere sediment at the bottom of the centrifuge tube well.

Disclosure of Invention

The utility model aims to provide a stirring device capable of stirring and dispersing latex microsphere sediment at the bottom of a centrifuge tube well.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a stirring device, includes base, fixed mounting elevating system on the base and fixes the agitator on elevating system, the agitator include agitator motor and with the stirring piece that agitator motor drive is connected, the stirring piece includes the body of rod, be provided with a plurality of pterygoid lamina on the periphery wall of body of rod lower part, a plurality of the pterygoid lamina equipartition is in the periphery side of body of rod, every the pterygoid lamina all extends along the radial of body of rod, and every the pterygoid lamina is in radially extending's height reduces gradually from upper end to lower terminal direction on the body of rod.

In one embodiment, the wings are triangular or trapezoidal.

In one embodiment, the rod body is provided with a plurality of groups of stirring convex columns above the wing plate, each group of stirring convex columns comprises a plurality of convex columns uniformly distributed on the outer peripheral side of the rod body, and each convex column is arranged along the radial protrusion of the rod body.

In one embodiment, each of the stirring lugs is located directly above a gap between two adjacent wing plates.

In one embodiment, the stirrer further comprises an extension rod, one end of the extension rod is fixedly connected with the driving shaft of the stirring motor, and the other end of the extension rod is detachably connected with the rod body of the stirring piece.

In one embodiment, the extension rod is screwed to the shaft of the stirring element.

In one embodiment, the top surface of the base is provided with a platform, the platform is provided with a fixing hole, and the inner peripheral wall of the fixing hole is the inner wall of the elastic piece.

In one embodiment, the platform is made of the elastic member or the fixing hole is lined with the elastic member.

In one embodiment, the lifting mechanism comprises a linear guide rail, a sliding table and a cross rod, wherein the linear guide rail is vertically fixed on the base, the sliding table is slidably mounted on the linear guide rail, and the cross rod is fixedly mounted on the sliding table.

In one embodiment, a cap is further fixed on the rod body, and the size of the cap is matched with that of the centrifuge tube.

By adopting the technical scheme, the stirring wing plate of the stirrer of the stirring device provided by the utility model is a plate body which is gradually reduced from the upper end to the lower end, and an inverted conical or truncated cone-shaped structure is formed at the lower part of the stirring piece, so that the bottom of the stirring piece can extend into the conical or hemispherical bottom of the centrifuge tube, and latex microspheres precipitated at the bottom of the centrifuge tube are stirred and dispersed. And during stirring, the plurality of wing plates can stir liquid to form vortex so as to prevent latex microspheres from gathering at the bottom of the centrifuge tube, and most of latex microspheres can climb to the middle part of the centrifuge tube from a channel between two adjacent wing plates, so that a better stirring and dispersing effect is achieved.

Drawings

Fig. 1 shows a schematic perspective view of a stirring device.

Fig. 2 shows a schematic side view of the stirring device.

Fig. 3 shows a schematic perspective view of the stirrer.

Fig. 4 shows a schematic side view of the stirrer.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the objects, features and advantages of the present utility model will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present utility model may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the present embodiment provides a stirring device including a base 1, a lifting mechanism 2 fixedly mounted on the base, and a stirrer 3 fixed on the lifting mechanism.

The base 1 in this embodiment is a substantially rectangular parallelepiped structure, the bottom of the base 1 may further be provided with a plurality of legs 11, the legs 11 may support the base 1, and the legs 11 may further have a height-adjustable function to adjust the levelness of the base 1. A control circuit board (not shown in the figure) is fixedly arranged in the base 1, a power switch button 12, a lifting knob 13 and a rotating speed knob 14 are arranged on the front side surface of the base 1, the lifting knob 13 is used for adjusting the height of the lifting mechanism 2, and the rotating speed knob 14 is used for adjusting the stirring speed of the stirrer 3. The top surface of the base 1 is provided with a platform 15 for fixing the centrifuge tube, the center of the platform 15 is provided with a circular fixing hole 151 for placing the centrifuge tube, the peripheral wall of the fixing hole 151 has certain elasticity, for example, the whole platform is made of rubber material with certain elasticity, or the platform is made of rigid material without elasticity, but the fixing hole 151 is internally lined with a rubber ring with elasticity, so that the fixing hole 151 can be matched with the centrifuge tube within a certain tube diameter range, and the centrifuge tube can be directly inserted into the fixing hole 151 for fixing, so that the centrifuge tube is conveniently and fixedly placed on the base 1.

The lifting mechanism 2 includes a linear guide 21, a slide table 22, and a cross bar 23. The linear guide rail 21 is vertically fixed on the base 1, the sliding table 22 is slidably mounted on the linear guide rail 21, and the sliding table 22 can slide along the linear guide rail 21 in the vertical direction, and the sliding of the sliding table 22 on the linear guide rail 21 can be driven by means of a motor driving screw rod, a belt or the like, and the specific driving mode is the prior art and is not repeated here. The cross bar 23 is fixedly mounted on the slide table 22 so that the cross bar 23 can move up and down in the vertical direction along with the slide table 22.

The stirrer 3 includes a stirring motor 31, an extension rod 32, and a stirring member 33. Wherein the stirring motor 31 is fixedly installed on the cross bar 23 and located right above the fixing hole 151. The top end of the extension rod 32 is fixedly connected with the driving shaft of the stirring motor 31 and extends towards the direction of the platform 15 on the base 1, and the stirring piece 33 is fixedly connected with the bottom end of the extension rod 32, so that the stirring motor 31 can drive the stirring piece 33 to rotate around the shaft. When the stirring device is used, the centrifugal tube is inserted into the fixing hole 151 to be fixed, and then the power switch button 12 is turned on, so that the stirring device is in an electrified state. Then, the stirring piece 33 is extended into the centrifuge tube by adjusting the lifting knob 13, and after the stirring piece 33 reaches a specified position, the stirring piece 33 is driven to rotate by the stirring motor 31 by adjusting the rotating speed knob 14, so that latex microspheres in the centrifuge tube are stirred and dispersed.

Referring to fig. 3, the stirring member 33 includes a cylindrical rod body 331, and a plurality of wing plates 332 are provided on an outer peripheral wall of the rod body 331 facing a lower portion of the platform 15, the plurality of wing plates 332 being uniformly distributed on an outer peripheral side of the rod body 331. Each wing plate 332 extends along the radial direction of the rod 331, and each wing plate 332 has a triangular or trapezoid structure with a height gradually reduced from the upper end to the lower end, so as to form an inverted conical or truncated cone-shaped structure at the lower part of the stirring piece 33, so that the bottom of the stirring piece 33 can extend into the conical or hemispherical bottom of the centrifuge tube, and the latex microspheres precipitated at the bottom of the centrifuge tube are stirred and dispersed. During stirring, the plurality of wings 332 can stir the liquid to form vortex so as to prevent the latex microspheres from gathering at the bottom of the centrifuge tube, and most of the latex microspheres can climb to the middle part of the centrifuge tube from the channel between the two adjacent wings 332, so that a better stirring and dispersing effect is achieved.

Referring to fig. 3 again, the rod 331 is provided with a plurality of groups of stirring protrusions 333 above the wing plate 332, and the plurality of groups of stirring protrusions 333 are sequentially distributed on the rod 331 from top to bottom. Each group of stirring lugs 333 includes a plurality of lugs 334 uniformly distributed on the outer peripheral side of the rod 331, and each lug is arranged along the radial protrusion of the rod 331. The latex microspheres which are stirred by the wing plates 332 at the lower part of the rod body 331 and climb to the middle part of the centrifuge tube can be scattered again by the stirring convex columns 333 on the rod body 331, so that a better stirring and dispersing effect is achieved. Preferably, each protrusion 334 of each stirring protrusion 333 is located directly above the gap between two adjacent wings 332, so that each stirring protrusion 333 has better stirring and dispersing effects.

Preferably, the stirring piece 33 is detachably connected with the extension rod 32, so that a user can conveniently and better correspond to the stirring piece 33 with the corresponding size according to centrifugal tubes with different tube diameters, and the optimal stirring and dispersing effects are achieved. Specifically, in this embodiment, the rod 331 of the stirring member 33 and the extension rod 32 are connected and fixed by adopting a threaded connection manner, for example, an external thread 335 is provided on the top of the rod 331, and an internal thread matched with the external thread 335 is provided on the bottom of the extension rod 32, so that the rod 331 can be connected to the extension rod 32 through the matched threads of the internal thread and the external thread.

Referring to fig. 4, a cap 34 is further fixed on the rod 331, the size of the cap 34 is matched with that of the centrifuge tube, and after the stirring piece 33 extends into the centrifuge tube to a designated depth, the cap 34 covers and seals the top opening of the centrifuge tube to prevent liquid from splashing during stirring and dispersing.

While the preferred embodiments of the present utility model have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the utility model. Such equivalents are also intended to fall within the scope of the utility model as defined by the following claims.

Claims (10)

1. The utility model provides a stirring device, its characterized in that includes base, fixed mounting elevating system on the base and fixes the agitator on elevating system, the agitator include agitator motor and with the stirring piece that agitator motor drive is connected, the stirring piece includes the body of rod, be provided with a plurality of pterygoid lamina on the periphery wall of body of rod lower part, a plurality of the pterygoid lamina equipartition is in the periphery side of body of rod, every the pterygoid lamina all extends along the radial of body of rod, and every the pterygoid lamina is in radial extension's height reduces gradually from upper end to the lower extreme direction on the body of rod.

2. The stirring device of claim 1, wherein the wings are triangular or trapezoidal.

3. The stirring device as set forth in claim 1, wherein the shaft body is provided with a plurality of sets of stirring lugs above the wing plate, each set of stirring lugs comprises a plurality of lugs uniformly distributed on the outer peripheral side of the shaft body, and each lug is arranged in a radially protruding manner along the shaft body.

4. A stirring device as set forth in claim 3 wherein each of said stirring lugs is located directly above a gap between adjacent ones of said wings.

5. The stirring device of claim 1, wherein the stirrer further comprises an extension rod, one end of the extension rod is fixedly connected with the driving shaft of the stirring motor, and the other end of the extension rod is detachably connected with the rod body of the stirring piece.

6. The stirring apparatus of claim 5, wherein said extension rod is threadably secured to the shaft of said stirring member.

7. The stirring device of claim 1, wherein the top surface of the base is provided with a platform having a fixing hole, and an inner peripheral wall of the fixing hole is an inner wall of the elastic member.

8. The stirring device of claim 7, wherein said platform is made of said elastic member or said fixing hole is lined with said elastic member.

9. The stirring device of claim 1, wherein the lifting mechanism comprises a linear guide rail vertically fixed to the base, a slide table slidably mounted on the linear guide rail, and a cross bar fixedly mounted on the slide table.

10. The stirring device of claim 1, wherein a cap is further secured to the shaft, the cap being sized to match the size of the centrifuge tube.