CN106110972A - Single spring automatic vortex oscillator of fastening-type single tube - Google Patents

Abstract

The invention discloses a single-spring-fastened single-tube automatic vortex oscillator, which comprises a main system (8) of the vortex oscillator and a rotating tray (1) connected with the eccentric rotating shaft of the main system (8) of the vortex oscillator. The shell of the vortex oscillator main system (8) is fixedly provided with a grooved vertical bar (7), and the crossbeam (5) that is sleeved on the tooled vertical bar (7) slides up and down along the tooled vertical bar (7); the crossbeam ( 5) Located above the rotating tray (1); the crossbeam (5) is provided with a locking device for positioning with the grooved vertical bar (7); the fastener device for flexible clamping of the oscillating tube relies on the spring (4 ) is connected to the end of the crossbeam (5); the axis of the spring (4) is parallel to the grooved vertical bar (7). The oscillator can realize full-automatic vortex oscillation without manpower maintenance.

Description

Single spring fastening type single tube automatic vortex oscillator

technical field

The invention belongs to the field of experimental equipment, in particular to an automatic vortex oscillator required for vortex oscillation and mixing of materials.

Background technique

In natural science experiments, it is often necessary to mix several materials until they are uniform. The common form is the mixing of fluid materials, or dissolving solid solutes in fluids. In many cases, this mixing process is time-consuming and labor-intensive if the mixing process is shaken by hand, and the effect is not ideal. Therefore, there are now many mechanical mixers, such as shakers, roller mixers, and three-dimensional rotary mixers. Although these are fully automatic, they are all weak mixing methods, and some require vibration tubes with sealing covers. The liquid will vibrate irregularly up, down, left, and right, so the vibration force cannot be too large, and it is not suitable for the dissolution of insoluble systems that require vigorous mixing. At present, the existing mixer, that is, the vortex mixer, can provide severe vibration. Its characteristic is that the lower end of the mixing tube makes a fast eccentric circular motion, and the upper end is relatively stationary, so that the liquid in the tube generates a violent vortex rotation and provides a severe vibration environment. , and because the position of the upper end is basically stable, not every part of the oscillation tube is doing eccentric rotation with the same amplitude as the oscillator shaft, and the eccentric rotation amplitude of the center of gravity of the oscillation tube is smaller than that of the oscillator shaft, so the system is relatively stable At the same time, the vortex liquid of the mixed liquid in the tube is highly stable, and the liquid will not overflow the oscillating tube under severe vibration; its working process is generally semi-automatic, that is, it needs to rely on the upper end of the hand-held container tube, and the lower end contacts the tray of the oscillator to open the vortex. The oscillator and the tray vibrate eccentrically, so the lower end of the container tube that is in static friction contact with it is also vibrated eccentrically, so that the mixed liquid in the container tube generates vortex rotation from bottom to top.

At present, the vortex oscillators on the market are basically semi-automatic, and they need to rely on the grasping effect of the hand. After a long time, the hand will feel pain due to the high-frequency vibration of the tube wall to the fingers, and when oscillating, the experimenter must work with the oscillating tube Accompanying the oscillator is a waste of time, especially for insoluble substances that require long-term shaking, the above two disadvantages are particularly significant.

It is not easy to realize the fully automatic vortex oscillator that simulates the effect of semi-automatic vortex oscillation. It cannot replace the role of human hands only by fixing the oscillating tube with a fastener, because the grasping function of human hands is actually flexible to a certain extent, and the lower end is relatively flexible. When eccentrically oscillating at a large angle, the upper end must also oscillate at a small angle because it is in the same tube as the lower end. Therefore, if the upper end is fixed, the lower end cannot oscillate. In order to achieve large-angle eccentric vibration at the lower end of the oscillation tube, the upper end does not move basically, but can be forced to follow the movement at a small angle. Ingenious accessories and operation methods are required to build the intensity of vortex mixing and the stability of the oscillation tube is exactly the same as that of the semi-automatic type. fully automatic vortex shaker.

Contents of the invention

The technical problem to be solved by the present invention is to provide a single-spring-fastened single-tube automatic vortex oscillator, which can realize full-automatic vortex oscillation without manpower maintenance.

In order to solve the above-mentioned technical problems, the present invention provides a single-spring-fastened single-tube automatic vortex oscillator, which includes the main system of the vortex oscillator and a rotating tray connected to the eccentric rotating shaft of the main system of the vortex oscillator. The shell of the system is fixed with a vertical bar with grooves, and the crossbeam set on the vertical bar with grooves can slide up and down along the vertical bar with grooves; the crossbeam is located above the rotating tray; Locking device;

Fastener means for flexible clamping of the oscillating tubes are attached to the ends of the beams by means of springs; the axes of the springs are parallel to the grooved vertical bars.

The flexible clamping of the oscillating tube can be realized using the fastener device of the above structure.

As an improvement of the single spring fastening type single tube automatic vortex oscillator of the present invention: the fastener device is located directly above the rotating tray;

The fastener device includes a fixed clip and a movable clip connected by a fastener adjusting screw, and a spring is fixedly connected with the fixed clip.

As a further improvement of the single-spring-fastened single-tube automatic vortex oscillator of the present invention: both the fixed clip and the movable clip are respectively provided with upper edge flanges.

As a further improvement of the single-spring fastening type single-tube automatic vortex oscillator of the present invention: the locking device is a fastening screw; The fastening screw is tightened and withstands the groove on the vertical bar with the groove, so as to realize the relative positioning of the crossbeam and the vertical bar with the groove.

As a further improvement of the single-spring-fastened single-tube automatic vortex oscillator of the present invention: a suction cup type support foot is provided at the bottom of the main system shell of the vortex oscillator.

In the present invention, the spring generally uses a short spring, and its free length is about 25-35 mm.

The present invention is obtained by improving the common semi-automatic vortex oscillator. The present invention belongs to the fully automatic vortex oscillator. The upper end of the oscillating tube is fixed using a spring (especially a short spring) in conjunction with a fastener device, and one end of the spring is fixed on the On the beam, the lower end of the oscillating tube rotates at a large angle without manpower maintenance, and the upper end of the oscillating tube hardly moves, but it can be forced to follow the movement at a small angle. The vortex mixing force is comparable to that of the existing semi-automatic vortex The oscillators are exactly the same, the stability of the oscillation tube is the same as that of the semi-automatic, and it can be suitable for various types of oscillation tubes for flexible application.

In the present invention, the beam is perpendicular to the vertical bar with grooves. The present invention relies on the fastening screw to be tightened and withstands the groove on the vertical bar with groove, so that the crossbeam is positioned on the vertical bar with groove. That is, the height of the beam is limited by fastening screws fixed to the groove positions.

In the present invention, the position of the movable clip relative to the fixed clip is changed by adjusting the fastener adjusting screw (that is, the distance between the movable clip and the fixed clip is adjusted), so as to realize the fixing of oscillating tubes of different sizes. Since upper flanges are respectively provided on the fixed clip and the moving clip, the upper flanges can partially cover the top of the oscillating tube, thereby providing downward pressure on the oscillating tube by adjusting the height of the beam; therefore, tight The fixture device not only provides radial force to clamp the oscillating tube, but also applies downward pressure to the oscillating tube.

In the present invention, the fastener adjustment screw can be tightened by hand, which facilitates the loading and dismounting of the oscillating tube in experiments.

In the present invention, the entire instrument can be firmly fixed on the desktop under the action of atmospheric pressure by using the suction cup type support feet.

The present invention has the following technical advantages:

1. The automatic vortex oscillator of the present invention can be maintained without manpower, and can stabilize the time required for vibration after installation, freeing manpower and improving efficiency.

2. The invention has a wide range of applications. The height position of the beam relative to the grooved vertical bar and the distance between the movable clip and the fixed clip can be adjusted steplessly, so it can be applied to various container tubes of different lengths and different diameters.

3. The present invention has low production cost, does not use complicated accessories, is convenient to adjust during use, and can quickly complete the assembly and disassembly of the oscillation tube and the height adjustment by hand.

4. The oscillating tube of the present invention has a stable oscillating form, and the mechanization simulates a semi-automatic working mode.

Description of drawings

The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the overall schematic diagram of the single-spring-fastened single-tube automatic vortex oscillator of the present invention.

Fig. 2 is an enlarged partial schematic diagram in a top view state in Fig. 1 (mainly embodying the grooved vertical bar 7, the crossbeam 5, etc.).

Fig. 3 is an enlarged partial schematic view of Fig. 1 looking up (the line of sight is viewed from the bottom of the fastener device to the fastener device, which mainly reflects the fastener device).

In the picture:

Rotary tray 1, fastener adjusting screw 2, spring 4, beam 5, fastening screw 6, vertical bar with groove 7, vortex oscillator main system 8, speed control switch 9, suction cup support foot 10, upper edge flange 11. Fixed clip 31, movable clip 32, groove 71.

detailed description

The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

Embodiment 1. A single-spring-fastened single-tube automatic vortex oscillator, as described in Figures 1 to 3, includes a main system 8 of the vortex oscillator and a rotating tray 1, and the main system 8 of the vortex oscillator has a speed regulating switch 9. The rotary tray 1 placed on the vortex oscillator main system 8 is connected to the eccentric rotation shaft of the vortex oscillator main system 8; the above content belongs to the prior art.

On the casing of the main system 8 of the vortex oscillator, a grooved vertical rod 7 is fixedly arranged, that is, the grooved vertical rod 7 is firmly erected on the upper surface of the casing of the main system 8; the grooved vertical rod 7 is provided with a vertical concave Groove 71 (that is, groove 71 is arranged on the vertical bar 7 along its length); the crossbeam 5 that is sleeved on the vertical bar 7 can slide up and down along the vertical bar 7; the crossbeam 5 is positioned on the rotating tray 1; the crossbeam 5 is provided with a locking device for positioning with the vertical bar 7 with a groove. The groove 71 realizes the relative positioning of the crossbeam 5 and the vertical bar 7 with the groove. At this time, the crossbeam 5 cannot move up and down relative to the vertical bar 7 with the groove.

The fastener means for clamping the oscillating tube is connected to the end of the beam 5 by means of a spring 4; The spring 4 generally selects a short spring, such as a cylindrical compression spring with a specification of φ1.5×10×30×7N (that is, a wire diameter of 1.5mm, an outer diameter of 10mm, a free length of 30mm, and an effective number of turns of 7 turns).

The fastener device is located directly above the rotary tray 1; the fastener device includes a fixed clip 31 and a movable clip 32 connected by a fastener adjusting screw 2, and the spring 4 is fixedly connected with the fixed clip 31. Both the fixed clip 31 and the movable clip 32 are respectively provided with upper edge flanges 11 .

One suction-cup type support foot 10 is respectively arranged on the four corners of the bottom of the shell of the vortex oscillator main system 8 .

The specific working process is as follows:

1) Select the oscillating tube according to the needs, add an appropriate amount of materials to be mixed into the tube, clamp the upper end of the tube in the fastener device, make the upper edge of the oscillating tube push the upper edge flange 11, and adjust the fastener adjusting screw 2 , so that the movable clip 32 moves relative to the fixed clip 31 until the oscillating tube is firmly clamped.

2) Loosen the fastening screw 6, adjust the height of the crossbeam 5 relative to the grooved vertical bar 7, so that the bottom of the oscillating tube just touches the rotating tray 1 and has a certain pressure (that is, the spring is slightly compressed, and the length of the spring is approximately reduced 1mm), so as to ensure the effective static friction between the oscillating tube and the rotating tray 1, so that the oscillating tube is always in good contact with the rotating tray 1 during rotation, tighten the fastening screw 6, and then press the suction cup support foot 10 to fix the instrument on the table, and turn on the adjustment Speed switch 9 carries out automatic vortex oscillation.

Adopt the single-spring fastening type single-tube automatic vortex oscillator described in embodiment 1 and working method thereof to carry out following experiment:

Experiment 1. Use a 15ml graduated centrifuge tube as an oscillating tube, add 3mg of pectin polysaccharide sample to the tube, add 5ml of distilled water, record the height position of the beam 5 and the position of the instrument on the table, so as to evaluate the stability of the instrument at the end of the experiment. Turn on the speed regulating switch 9, and set the rotating speed to the maximum value. With pectin polysaccharide dissolving condition, vortex liquid level height (using the volume scale assessment on scale centrifuge tube), crossbeam 5 moving distances, the effect of these indexes of instrument moving distance comprehensive evaluation automatic vortex oscillator of the present invention, experimental result is shown in Table 1 .

Table 1. Automatic vortex oscillator effect detection

It can be seen from the above table 1 that the automatic vortex oscillator of the present invention can run stably for a long time. According to the height of the liquid level of the vortex, it can be seen that the present invention can form an effective vortex, and automatically and effectively dissolve relatively insoluble samples.

Comparative example 1, the spring 4 in the first embodiment is canceled, that is, the fixed clip 31 is directly fixed on the beam 5, and the rest is the same as the first embodiment. The effect evaluation of the device was carried out in the manner described in Experiment 1. The results are shown in Table 2.

Table 2, the effect detection of the automatic vortex oscillator in comparative example 1

This device cannot form an effective vortex for the liquid in the oscillating tube, so it has almost no oscillating effect, and the turntable has a large running resistance, so it only needs to be verified for 1 minute, and there is no need for a long-term evaluation. Long-term operation may even damage the main system of the oscillator.

Comparative example 2, cancel the suction cup type support foot 10 in embodiment 1, change it into common rubber feet, and the rest are the same as embodiment 1. The effect evaluation of the device was carried out in the manner described in Experiment 1. The results are shown in Table 3.

Table 3, the effect detection of the automatic vortex oscillator in comparative example 2

The vortex mixing effect of this device is still good, and the vortex can be effectively formed, but the instrument drifts after a long time of vibration.

Comparative example 3. Change the grooved vertical rod 7 in embodiment 1 into a cylindrical vertical rod, that is, cancel the setting of the vertical groove 71, and the rest are the same as in embodiment 1. The effect evaluation of the device was carried out in the manner described in Experiment 1. The results are shown in Table 4.

Table 4, the effect detection of automatic vortex oscillator in comparative example 3

Although this device still has an acceptable vortex mixing effect, the instrument is not stable enough. With the prolongation of the operation time, the beam 5 becomes loose, and the vortex can be effectively formed at first, but the effect decreases with the deviation of the beam 5.

Comparative example 4, the upper flange 11 provided on the fixed clip 31 and the movable clip 32 is canceled; the rest is the same as that of embodiment 1. The effect evaluation of the device was carried out in the manner described in Experiment 1. The results are shown in Table 5.

Table 5, the effect detection of the automatic vortex oscillator in comparative example 4

Although this device still has an acceptable vortex mixing effect, the downforce provided by the fastener clips (that is, the fixed clip 31 and the movable clip 32) to the oscillating tube is unstable, and the downforce gradually decreases as the operating time increases. Small, the height of the vortex liquid level decreases, and the mixing effect decreases.

Comparative example 5. Use the existing semi-automatic vortex oscillator, that is, change it into a hand-held oscillating tube for ordinary vortex oscillation experiments, and carry out the rest with experiment 1. The results are shown in Table 6.

Table 6, comparative test of the effects of common vortex oscillators in comparative example 5

The effect of this semi-automatic ordinary vortex oscillator is the same as that of the automatic vortex oscillator in Experiment 1, but it requires a hand-held oscillating tube, which is time-consuming and laborious; it cannot reflect the advantages of full automation.

Finally, it should be noted that the above examples are only some specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All deformations that can be directly derived or associated by those skilled in the art from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims (5)

1. single spring automatic vortex oscillator of fastening-type single tube, including vortex oscillator main system (8) and and vortex oscillator The rotary-tray (1) that the eccentric rotary axle of main system (8) is connected, is characterized in that: on the shell of vortex oscillator main system (8) Being fixedly installed tool groove montant (7), the crossbeam (5) being sleeved on tool groove montant (7) slides up and down along tool groove montant (7)；Crossbeam (5) top of rotary-tray (1) it is positioned at；Crossbeam (5) is provided with the locking device for positioning mutually with tool groove montant (7)；

Attachment means for flexible clamping oscillating tube relies on spring (4) to be connected with the end of crossbeam (5)；Described spring (4) Axis with tool groove montant (7) parallel.

Single spring automatic vortex oscillator of fastening-type single tube the most according to claim 1, is characterized in that: attachment means position Surface in rotary-tray (1)；

Described attachment means includes clamp sheet (31) and dynamic intermediate plate (32), the spring being connected by securing member set screw (2) (4) it is fixedly linked with clamp sheet (31).

Single spring automatic vortex oscillator of fastening-type single tube the most according to claim 2, is characterized in that: described clamp sheet And be provided with respectively on dynamic intermediate plate (32) along flange (11) (31).

4., according to the arbitrary described single spring automatic vortex oscillator of fastening-type single tube of claims 1 to 3, it is characterized in that: described Locking device is fastening screw (6)；On tool groove montant (7), the length direction along tool groove montant (7) arranges groove (71), depends on It is close to solid screw (6) and tightens and withstand the groove (71) on tool groove montant (7), it is achieved crossbeam (5) is fixed mutually with tool groove montant (7) Position.

Single spring automatic vortex oscillator of fastening-type single tube the most according to claim 4, is characterized in that: in vortex oscillator The bottom of main system (8) shell arranges sucking disc type supporting foot (10).