Magnetic contactless stirring device

Abstract

The utility model relates to a kind of magnetic contactless stirring device, including the central rod member that is longitudinally through bottle cap and extends to bottle body inside, the stirring assembly is set on this central rod member. Stirring assembly can rotate around central rod member, and have two symmetrical magnetic components relative to central rod member;The stirring device further includes support frame and step motor installed on support frame, wherein a driving disc is installed on the rotating shaft of step motor, the driving disc has two permanent magnets, and two permanent magnets are respectively opposite to two magnetic components heteropolar pole. When step motor controls driving disc rotation, stirring assembly will rotate under the action of magnetic force, to realize the purpose of stirring liquid, since the driving structure of the stirring device is arranged below bottle body and does not contact bottle body and stirring assembly, therefore reagent bottle can be placed on support to start stirring, the scheme simplifies the structure and operation process of stirring device, and the efficiency of stirring operation can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid stirring device, in particular to a magnetic non-contact stirring device. BACKGROUND

[0002] A liquid stirring device is provided with a rotatable stirring rod on the bottle cap, and the lower end of the stirring rod is provided with stirring blades below the liquid surface. The stirring device further comprises a vertical support and a driving motor assembly installed upside down on the top of the support. When in use, the bottle is placed directly below the driving motor assembly, and the top end of the stirring rod is connected to the driving motor assembly. Then the driving motor assembly is started to stir the liquid. Since the stirring rod needs to be disassembled before and after stirring, it is inconvenient to use. Moreover, if the bottle is not placed directly below the driving motor assembly, the stirring rod will generate a large friction when rotating. SUMMARY

[0003] The utility model discloses a magnetic non-contact stirring device which is convenient to use. The driving motor assembly is arranged on the lower support, and a driving disc with magnetism is driven to rotate by the driving motor assembly. The center rod with magnetic stirring assembly is movably arranged on the bottle cap, and the stirring assembly is driven to rotate by the driving disc, thereby realizing non-contact stirring.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a magnetic non-contact stirring device, comprising a bottle body, a bottle cap is arranged on the top of the bottle body, and a center rod is arranged vertically through the bottle cap and extends into the bottle body. A stirring assembly is arranged on the center rod. The center rod is fixedly installed relative to the bottle cap, the stirring assembly can rotate around the center rod, and the stirring assembly has two symmetrical magnetic components relative to the center rod. The stirring device further comprises a support frame and a stepping motor installed on the support frame. A driving disc is installed on the rotating shaft of the stepping motor, and the driving disc has two symmetrical permanent magnets relative to the rotating shaft. The support frame supports the bottle body and makes the bottle body above the driving disc, and the two permanent magnets are opposite to the two magnetic components with different magnetic poles.

[0005] In the above technical solution, the lower step motor drives the driving disc to rotate, since the driving disc is provided with permanent magnets and the stirring assembly also has magnetism, and the driving disc and the stirring assembly are attracted to each other under the magnetic force, so when the step motor controls the permanent magnets to rotate, the stirring assembly will rotate under the magnetic force, thereby achieving the purpose of stirring the liquid. Since the driving structure of the stirring device is arranged below the bottle body and does not contact the bottle body and the stirring assembly, the reagent bottle can be placed on the support to start stirring, and after stirring, the reagent bottle can be directly taken away. The scheme simplifies the structure and operation process of the stirring device, and can effectively improve the efficiency of stirring operation.

[0006] As a preferred scheme of the driving disc, the driving disc comprises a horizontally arranged mounting disc, the middle part of the mounting disc is mounted on the top end of the rotating shaft of the step motor, two magnet grooves are symmetrically arranged on the front of the mounting disc, and the permanent magnets are respectively arranged in the magnet grooves.

[0007] As a preferred scheme of the stirring assembly, the stirring assembly comprises a left-right symmetrical rotating frame, the rotating frame is movably sleeved on the central rod through the central sleeve in the middle part, the central sleeve is provided with an extension arm on both sides, and a mounting sleeve is longitudinally arranged on the end of the extension arm. The magnetic component is two magnetic force rods arranged in the mounting sleeve, wherein the magnetic force rods are used to generate magnetic force with the permanent magnets and participate in stirring the reagent together with the extension arm.

[0008] As a preferred scheme, an inner sleeve is fixedly arranged in the middle part of the bottle cap and extends along the length direction of the central rod. The end of the inner sleeve is a threaded joint with external threads, a threaded sleeve matched with the threaded joint is arranged, and the threaded joint is longitudinally divided into several parts. The central rod passes through the inner sleeve, and when the threaded sleeve is tightened, the parts of the threaded joint are folded and press the central rod, thereby positioning the central rod. By loosening the threaded sleeve, the restriction of the threaded joint on the central rod can be released, so that the central rod can be disassembled, which is convenient for cleaning or replacing the structure of the central rod.

[0009] As a preferred scheme, a stop ring is arranged at the lower part of the central rod, and the stop ring is fixedly arranged relative to the central rod under the friction force to prevent the stirring assembly from falling off. In addition, by moving the position of the stop ring on the central rod, the distance between the stirring assembly and the driving disc can be adjusted.

[0010] As a preferred scheme, the central rod is made of stainless steel and is a tubular body with open ends. Therefore, the central rod can be used not only for mounting the stirring assembly, but also as a liquid channel, such as taking liquid or adding medicine to the liquid through the central rod. Therefore, the hollow central rod can also achieve stirring, medicine adding and liquid taking in a sealed condition, which can effectively reduce the risk of chemical liquid splashing and has high safety.

[0011] As a preferred solution, a positioning structure is provided on the support frame. This positioning structure positions the bottle body and places it directly above the drive plate. The magnetic attraction between the drive plate and the stirring component is affected by the distance between them. The positioning structure allows the user to quickly place the bottle body in the optimal position, thereby avoiding the phenomenon that the stirring effect is affected by the bottle body not being placed in the center.

[0012] As a preferred embodiment, the positioning structure is a bottle holder in the form of a rotating body, which has a groove open at the top and a coaxial protruding ring at the bottom; a mounting hole is provided at the top of the upper bracket, the protruding ring is engaged in the mounting hole, and the drive disk is located within the receiving area enclosed by the middle of the protruding ring. Using this bottle holder as a positioning structure, in addition to positioning the bottle, it can also stabilize the bottle and prevent it from tilting.

[0013] As a preferred embodiment, an outwardly extending clamping head is provided at the bottom of the convex ring, and a clearance notch is provided on the mounting hole for the clamping head to pass through. By rotating the bottle holder, the clamping head can be locked onto the lower edge of the mounting hole, thereby ensuring that the bottle holder is stably installed on the upper bracket. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A schematic diagram of the planar structure of the magnetic non-contact stirring device provided in the embodiment of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of a magnetic non-contact drive device; Figure 3 for Figure 2 A schematic diagram of the split structure of the central drive disk; Figure 4 for Figure 2 A schematic diagram of the back structure of the medium-sized bottle holder; Figure 5 This is a schematic diagram of the installation structure of the stirring assembly; Figure 6 A schematic diagram of the structure of the inner sleeve on the back of the bottle cap; Figure 7 for Figure 5 A schematic diagram of the stirring assembly.

[0015] In the diagram, 1 is the bottle cap, 2 is the bottle body, 3 is the bottle holder, 4 is the upper bracket, 5 is the mounting plate, 6 is the stepper motor, 7 is the motor mounting bracket, 8 is the drive plate, 9 is the central rod, 10 is the stirring assembly, 41 is the mounting hole, 42 is the clearance notch, 31 is the convex ring, 32 is the receiving area, 33 is the clamp, 81 is the mounting plate, 82 is the central hole, 83 is the magnet groove, 84 is the permanent magnet, 85 is the positioning hole, 91 is the retaining ring, 11 is the inner tube sleeve, 12 is the threaded joint, 13 is the threaded sleeve, 101 is the central sleeve, 102 is the extension arm, 103 is the mounting sleeve, and 104 is the magnetic rod. Detailed Implementation

[0016] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] Figure 1 In one embodiment of the present invention, a magnetic non-contact stirring device is provided, which includes an upper reagent bottle and a lower magnetic non-contact driving device. The reagent bottle includes a bottle body 2 and a bottle cap 1 installed at the mouth of the bottle body 2. The magnetic non-contact driving device includes a support frame and a stepper motor 6 installed in the support frame, and a bottle holder 3 set on the top of the support frame, wherein the aforementioned bottle body 2 is placed in the bottle holder 3.

[0018] Specifically, the support frame includes an upper bracket 4 and a lower mounting plate 5. The upper bracket 4 is horizontally positioned in the middle, with its left and right sides extending downwards and then horizontally again after contacting the mounting plate 5, and the horizontally extended portions are fixedly connected to the mounting plate 5. A mounting hole 41 is longitudinally provided through the middle of the upper bracket 4, and clearance notches 42 are symmetrically provided on the left and right edges of the mounting hole 41. The aforementioned stepper motor 6 is located directly below the mounting hole 41 and is mounted on the mounting plate 5 via a motor mounting bracket 7, and a drive disk 8 is mounted on the shaft of the stepper motor 6.

[0019] Regarding drive disk 8, such as Figure 3 As shown, the drive disk 8 includes a horizontally arranged mounting disk 81, which is mounted on the shaft of the stepper motor 6 through a central hole 82. Two magnet slots 83 are symmetrically arranged on the front of the mounting disk 81, and a permanent magnet 84 is installed in each of the two slots 83. In this embodiment, the S pole of the permanent magnet 84 faces upward. Furthermore, to ensure the drive disk 8 is stably mounted on the shaft, a positioning hole 85 penetrating the central hole 82 is provided on the side of the mounting disk 81. Positioning bolts are installed in the positioning holes 85 to fix the shaft.

[0020] Figure 4The back structure of the bottle holder 3 is shown. In this embodiment, the bottle holder 3 is a rotating body with an open top groove on the front and a coaxial protruding ring 31 on the back. Two outwardly extending locking heads 33 are symmetrically arranged on the left and right sides of the bottom of the protruding ring 31. When installing the bottle holder 3 onto the upper bracket 4, first pass the locking heads 33 through the clearance notch 42, and then rotate the bottle holder 3 so that the locking heads 33 are locked at the lower edge of the mounting hole 41, thereby ensuring that the bottle holder 3 is stably installed on the upper bracket 4.

[0021] Regarding the reagent bottle, its body 2 is a conventional bottle body. In this embodiment, a central rod 9 is installed on its cap 1, as follows: Figure 5 As shown, a stirring assembly 10 is mounted on the central rod 9. This stirring assembly 10 can rotate around the central rod 9 and slide along the length of the central rod 9. A retaining ring 91 is mounted at the lower end of the central rod 9. This retaining ring 91 is stationary on the central rod 9 under the action of friction, and its position can be adjusted along the central rod 9, thereby adjusting the height of the stirring assembly 10. Figure 6 As shown, an inner tube sleeve 11 extending along the length of the central rod 9 is fixedly installed in the center of the back of the bottle cap 1. The end of the inner tube sleeve 11 is a threaded connector 12 with external threads, and a threaded sleeve 13 is provided to mate with the threaded connector 12. As can be seen from the figure, the threaded connector 12 is longitudinally divided into several parts. The central rod 9 moves through the inner hole of the inner tube sleeve 11, and when the threaded sleeve 13 is tightened, the parts of the threaded connector 12 retract and press against the central rod 9, thereby positioning the central rod 9. Loosening the threaded sleeve 13 allows the central rod 9 to be disassembled, facilitating cleaning or replacement of the central rod 9 and other structures. In addition, the central rod 9 used in this embodiment is a hollow tubular body made of stainless steel, which facilitates the absorption of liquid through the central rod 9.

[0022] Regarding the stirring component 10, such as Figure 7As shown, it includes a symmetrical rotating frame (made of PTFE). The rotating frame is movably mounted on the central rod 9 via a central sleeve 101. The left and right sides of the central sleeve 101 are extension arms 102. The ends of the extension arms 102 are longitudinally provided with mounting sleeves 103, and magnetic rods 104 are respectively installed in the two mounting sleeves 103. The magnetic rods 104 have permanent magnets inside and are coated with PTFE material on the outside, which has good anti-corrosion performance. In this embodiment, the N pole of the permanent magnet in the magnetic rods 104 faces downward, so it attracts the driving disk 8 below. When the stepper motor 6 is started, the stirring assembly 10 will also rotate with the rotation of the driving disk 8, thereby achieving the purpose of stirring the reagent. Since the driving structure of the stirring device is located below the bottle body 2 and is independent of the bottle body 2, stirring can begin as soon as the reagent bottle is placed on the support, and the reagent bottle can be removed directly after stirring. This can effectively improve the efficiency of the stirring operation. Furthermore, under the limiting effect of the bottle holder 3, the stirring component 10 can automatically face the drive plate 8 to achieve the best stirring effect.

[0023] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0025] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A magnetic non-contact stirring device, comprising a bottle body, a bottle cap at the top opening of the bottle body, and a central rod extending longitudinally through the bottle cap and into the interior of the bottle body, wherein a stirring assembly is mounted on the central rod, characterized in that: The central rod is fixedly installed relative to the bottle cap. The stirring assembly can rotate around the central rod and has two magnetic components symmetrically arranged relative to the central rod. The stirring device also includes a support frame and a stepper motor mounted on the support frame. A drive disk is mounted on the shaft of the stepper motor, and the drive disk has two permanent magnets symmetrically arranged relative to the shaft. The support frame supports the bottle body and positions the bottle body above the drive disk, and the two permanent magnets are respectively opposite to the magnetic poles of the two magnetic components.

2. The magnetic non-contact stirring device as described in claim 1, characterized in that: The drive disk includes a horizontally arranged mounting disk, the middle of which is mounted on the top of the stepper motor shaft. Two magnet slots are symmetrically arranged on the left and right sides of the front of the mounting disk, and permanent magnets are installed in the magnet slots respectively.

3. The magnetic non-contact stirring device as described in claim 2, characterized in that: The stirring assembly includes a symmetrical rotating frame that is movably mounted on a central rod via a central sleeve. Extending arms are located on both sides of the central sleeve, and mounting sleeves are longitudinally installed at the ends of the extending arms. The magnetic components are two magnetic rods installed in the mounting sleeves.

4. The magnetic non-contact stirring device as described in claim 1, characterized in that: An inner tube sleeve extending along the length of the central rod is fixedly installed in the middle of the bottle cap. The end of the inner tube sleeve is a threaded joint with external threads, and a threaded sleeve that mates with the threaded joint is provided. The threaded joint is longitudinally divided into several parts. The central rod moves through the inner tube sleeve, and when the threaded sleeve is tightened, the parts of the threaded joint retract and press against the central rod, thereby positioning the central rod.

5. The magnetic non-contact stirring device as described in claim 1, characterized in that: A retaining ring is installed at the lower part of the central rod, which is fixed relative to the central rod under the action of friction.

6. The magnetic non-contact stirring device as described in claim 1, characterized in that: The central rod is made of stainless steel and is a tubular body open at both ends.

7. A magnetic non-contact stirring device as described in any one of claims 1-6, characterized in that: A positioning structure is provided on the support frame to position the bottle body directly above the drive disc.

8. The magnetic non-contact stirring device as described in claim 7, characterized in that: The positioning structure is a bottle holder in the shape of a rotating body, which has a groove open at the top and a coaxial convex ring at the bottom; a mounting hole is provided at the top of the upper bracket, the convex ring is inserted into the mounting hole, and the drive disk is located in the receiving area enclosed by the middle of the convex ring.

9. A magnetic non-contact stirring device as described in claim 8, characterized in that: An outwardly extending clip is provided at the bottom of the convex ring, and a clearance notch is provided on the mounting hole for the clip to pass through. The clip can be locked onto the lower edge of the mounting hole by rotating the bottle holder.

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