Digital display circumference oscillator

Abstract

The utility model relates to the technical field of oscillators, and particularly discloses a digital display circumference oscillator which comprises a circumference oscillation mechanism and a test tube positioning seat connected above the circumference oscillation mechanism, the test tube positioning seat comprises a lower positioning disc and an upper limiting disc, and the bottom end of the lower positioning disc is connected with the circumference oscillation mechanism. A first motor is fixedly arranged in the lower positioning disc, an output shaft of the first motor is fixedly connected with a lead screw, the top end of the lower positioning disc is fixedly connected with a polish rod, the upper limiting disc is in threaded connection with the lead screw and is in sliding connection with the polish rod, a plurality of circular grooves are formed in the lower positioning disc, and a plurality of limiting through holes corresponding to the circular grooves are formed in the upper limiting disc. The distance between the upper limiting disc and the lower positioning disc is adjusted according to the heights of the test tubes, so that the bottoms of the test tubes with different heights can be always inserted into the circular grooves, the upper parts of the test tubes with different heights can be always limited in the limiting through holes, the stability of the test tubes in the circumferential rotation process is guaranteed, and the safety of the test tubes in the circumferential oscillation process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oscillator technology, specifically to a digital display circular oscillator. Background Technology

[0002] A digital display circular oscillator is a type of vortex oscillator, a laboratory device primarily used for sample mixing, shaking, and culturing in fields such as biology and chemistry. It uses circular motion to uniformly mix samples within a container, making it suitable for experimental operations such as cell culture, dissolution, and chemical reactions.

[0003] To address the problem of time-consuming and laborious manual operation of vortex oscillators, which requires holding test tubes directly during use, Chinese utility model patent CN213966304U discloses a vortex oscillator for biochemical detection. The vortex oscillator includes a chassis containing a vortex oscillation drive mechanism and a power supply. Above the vortex oscillation drive mechanism is a test tube positioning seat. Several positioning grooves are formed on the top surface of the test tube positioning seat. Each positioning groove has a pair of test tube clamping and positioning mechanisms on both sides. When a test tube is placed in a groove, it is directly positioned onto the test tube positioning seat by the clamping and positioning mechanisms. This eliminates the need for manual holding during vortex oscillation, achieving automatic clamping of the test tube for vortex oscillation and ensuring convenient operation. Because this test tube clamping and positioning mechanism can only clamp the lower part of the test tube, when the test tube is very tall and contains a lot of solution, the center of gravity of the test tube will also rise accordingly. Clamping only the lower part of the test tube by the clamping and positioning mechanism makes the test tube more likely to lose stability during rotation, causing it to shake or tilt. It may also cause the test tube to fall off or break during rotation, and the safety of the test tube during circumferential oscillation cannot be guaranteed. Utility Model Content

[0004] The purpose of this invention is to provide a digital display circular oscillator to solve the problem that existing oscillators cannot guarantee the safety of test tubes during circular oscillation.

[0005] To address the above issues, the following technical solution is provided:

[0006] A digital display circular oscillator includes a circular oscillation mechanism and a test tube positioning seat connected above the circular oscillation mechanism. The test tube positioning seat includes a lower positioning plate and an upper positioning plate. The bottom end of the lower positioning plate is connected to the circular oscillation mechanism. A first motor is fixedly installed inside the lower positioning plate. A lead screw is fixedly connected to the output shaft of the first motor. A guide rod is fixedly connected to the top end of the lower positioning plate. The upper positioning plate is threadedly connected to the lead screw and slidably connected to the guide rod. The lower positioning plate has a plurality of circular grooves, and the upper positioning plate has a plurality of limiting through holes corresponding to the circular grooves.

[0007] The basic principle of the above technical solution is as follows: the circumferential oscillation mechanism drives the test tube positioning seat to make circumferential motion. The test tube passes through the limiting through hole of the upper positioning plate and is placed in the circular groove of the lower positioning plate. The limiting through hole stably limits the test tube from the top. When encountering test tubes of different heights, before placing the test tube, the first motor is started to drive the lead screw to rotate. The upper positioning plate can move up and down on the lead screw and the guide rod, thereby adjusting the distance between the upper positioning plate and the lower positioning plate to adapt to test tubes of different heights. Then, the test tube is placed into the upper positioning plate and the lower positioning plate to ensure that the bottom of the test tube is inserted into the circular groove and the upper part of the test tube is limited in the limiting through hole.

[0008] The beneficial effects of the above technical solution are as follows: Compared with the existing method of placing test tubes in the groove of the test tube positioning seat and clamping the lower part of the test tube by the test tube clamping and positioning mechanism, this technical solution can adjust the distance between the upper positioning plate and the lower positioning plate according to the height of the test tube, so that the bottom of the test tube of different heights can always be inserted into the circular groove and the upper part can always be limited in the limiting through hole, ensuring the stability of the test tube during circumferential rotation, avoiding the test tube from shaking or tilting, thereby preventing the test tube from falling off or breaking during rotation, and ensuring the safety of the test tube during circumferential oscillation.

[0009] Furthermore, the plurality of circular grooves are arranged in a circular array on the lower positioning plate, and the diameter of the circular grooves increases gradually from the center to the edge of the lower positioning plate. Circular grooves of different diameters can accommodate test tubes of different diameters.

[0010] Furthermore, the lower positioning plate has a central groove at its center, and the inner wall of the central groove has two opposing and laterally arranged limiting grooves. Springs are fixedly connected to each of the two limiting grooves, and the springs extend beyond the limiting grooves and are fixedly connected to a pair of opposing V-shaped clamps. The inner wall of the limiting through-hole corresponding to the central groove of the lower positioning plate is provided with the same mechanism as that in the central groove. The two opposing V-shaped clamps can accommodate and clamp containers of various shapes, including cylindrical, square, hexagonal, elliptical, and other polygonal containers. For containers with special shapes, they can be placed in the central groove.

[0011] Furthermore, the circular groove, the limiting through hole, and the V-shaped clamp are all equipped with a protective layer made of silicone material. Silicone has a certain degree of elasticity and good softness. When the test tube positioning seat rotates, the elasticity can compress the test tube, preventing it from being thrown out during rotation, thus effectively protecting the test tube.

[0012] Furthermore, the digital display circular oscillator also includes a chassis. The circular oscillation mechanism includes a second motor housed within the chassis and an eccentric cam connected to the drive shaft of the second motor. The drive shaft of the second motor passes through the top wall of the chassis and is rotatably connected to the top wall. The eccentric cam is fixed to the lower positioning plate via a connecting rod. A power supply is installed inside the chassis, and a PLC controller is also installed on the chassis. The controlled ends of the first and second motors are connected to the output end of the PLC controller. The PLC controller controls the starting and stopping of the first and second motors. The second motor drives the eccentric cam to rotate, which in turn drives the lower positioning plate to perform circular motion, thereby achieving circular oscillation of the sample in the test tube.

[0013] Furthermore, the lead screw and guide rod are respectively positioned at the two ends of the diameter line of the lower positioning plate. This positional distribution of the lead screw and guide rod provides more stable support for the upper positioning plate during vertical movement. Attached Figure Description

[0014] Figure 1 This is a front view cross-sectional structural diagram of the digital display circular oscillator of this utility model;

[0015] Figure 2 This is a top view of the test tube positioning device.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] The reference numerals in the accompanying drawings of the instruction manual include: chassis 1, lower positioning plate 2, upper positioning plate 3, first motor 4, lead screw 5, guide rod 6, circular groove 7, limit through hole 8, center groove 9, limit groove 10, spring 11, V-shaped clamp 12, protective layer 13, second motor 14, eccentric cam 15, connecting rod 16, and PLC controller 17. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The basic implementation examples are as follows: Figure 1-3 As shown:

[0020] A digital display circular oscillator, such as Figure 1As shown, the device includes a chassis 1, a circular oscillation mechanism, and a test tube positioning seat connected above the circular oscillation mechanism. The test tube positioning seat includes a lower positioning plate 2 and an upper positioning plate 3. The bottom end of the lower positioning plate 2 is connected to the circular oscillation mechanism. A first motor 4 is fixedly mounted inside the left end of the lower positioning plate 2. The output shaft of the first motor 4 is fixedly connected to a vertically arranged lead screw 5. A guide rod 6 is fixedly connected to the right end of the lower positioning plate 2. The lead screw 5 and the guide rod 6 are respectively located at the two ends of the diameter line of the lower positioning plate 2. The left end of the upper positioning plate 3 is threadedly connected to the lead screw 5, and the right end of the upper positioning plate 3 is slidably connected to the guide rod 6. The lower positioning plate 2 has several circular grooves 7, such as... Figure 2 As shown, several circular grooves 7 are arranged in a ring array on the lower positioning plate 2. The diameter of the circular grooves 7 gradually increases outward from the center to the edge of the lower positioning plate 2 in increments of 1 cm. The upper positioning plate 3 is provided with several limiting through holes 8 corresponding to the circular grooves 7. The lower positioning plate 2 has a central groove 9 at its center. The inner wall of the central groove 9 has two opposing and laterally arranged limiting grooves 10. Springs 11 are fixedly connected to the two limiting grooves 10 respectively. The springs 11 in the two limiting grooves 10 extend out of the limiting grooves 10 and are fixedly connected to a pair of opposing V-shaped clamps 12. Figure 3 As shown, the inner wall of the limiting through hole 8 corresponding to the center groove 9 of the upper positioning plate 3 and the lower positioning plate 2 is provided with the same mechanism as the center groove 9. The circular groove 7, the limiting through hole 8 and the V-shaped clamping plate 12 are all provided with a protective layer 13, which is made of silicone material.

[0021] like Figure 1 As shown, the circular oscillation mechanism includes a second motor 14 disposed inside the housing 1 and an eccentric cam 15 connected to the drive shaft of the second motor 14. The eccentric cam 15 is located at the top of the housing 1. The drive shaft of the second motor 14 passes through the top wall of the housing 1 and is rotatably connected to the top wall of the housing 1. The eccentric cam 15 is fixed to the lower positioning plate 2 by a connecting rod 16. A power supply (not shown in the figure) is provided inside the housing 1. A PLC controller 17 is also provided on the housing 1. The controlled ends of the first motor 4 and the second motor 14 are connected to the output end of the PLC controller 17.

[0022] The specific implementation process is as follows:

[0023] Before placing the test tube, the first motor 4 is started by the PLC controller 17 according to the height of the test tube. The first motor 4 drives the lead screw 5 to rotate, and the upper limit plate 3 can move up and down on the lead screw 5 and the guide rod 6, thereby adjusting the distance between the upper limit plate 3 and the lower positioning plate 2 to match the height of the test tube to be placed. Then, the test tube is passed through the limiting through hole 8 of the upper limit plate 3 and placed into the circular groove 7 of the lower positioning plate 2, so that the bottom of the test tube is inserted into the circular groove 7 and the upper part of the test tube is limited within the limiting through hole 8. The second motor 14 is started by the PLC controller 17. The second motor 14 drives the eccentric cam 15 to rotate, which in turn drives the connecting rod 16, thereby driving the lower positioning plate 2 and the upper limit plate 3 to perform circular motion, realizing the circular oscillation of the sample in the test tube. For containers with special shapes, they can be placed in the central groove 9. This device can adjust the distance between the upper positioning plate 3 and the lower positioning plate 2 according to the height of the test tube, so that the bottom of the test tube of different heights can always be inserted into the circular groove 7 and the upper part can always be limited within the limiting through hole 8. This ensures the stability of the test tube during circumferential rotation, prevents the test tube from shaking or tilting, and thus prevents the test tube from falling off or breaking during rotation, ensuring the safety of the test tube during circumferential oscillation.

[0024] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A digital readout circular oscillator comprising a circular oscillator mechanism and a test tube positioning seat connected above the circular oscillator mechanism, characterized in that: The test tube positioning seat comprises a lower positioning disc and an upper limiting disc, the bottom end of the lower positioning disc is connected with a circumferential oscillation mechanism, a first motor is fixedly arranged in the lower positioning disc, a screw rod is fixedly connected to the output shaft of the first motor, a light rod is fixedly connected to the top end of the lower positioning disc, the upper limiting disc is threadedly connected with the screw rod, the upper limiting disc is slidably connected with the light rod, a plurality of circular grooves are arranged on the lower positioning disc, and a plurality of limiting through holes corresponding to the circular grooves are arranged on the upper limiting disc; a center groove is arranged at the center of the lower positioning disc, two limiting grooves that are opposite to each other and are horizontally arranged are arranged on the inner wall of the center groove, springs are fixedly connected in the two limiting grooves respectively, and the springs in the two limiting grooves are fixedly connected with a pair of opposite V-shaped clamping plates outside the limiting grooves; the limiting through holes in the center groove of the upper limiting disc correspond to the same mechanism in the center groove.

2. A digital readout frequency synthesizer according to claim 1, wherein: The plurality of circular grooves are arranged in a ring array on the lower positioning disc, and the diameters of the plurality of circular grooves increase from the center of the lower positioning disc to the edge of the lower positioning disc.

3. The digital display circular oscillator according to claim 1, characterized in that: The circular grooves, the limiting through holes and the V-shaped clamping plates are all provided with protective layers made of silica gel material.

4. The digital readout frequency synthesizer of claim 1 wherein: the digital readout frequency synthesizer is a digital readout frequency synthesizer. Further comprising a case, the circumferential oscillation mechanism comprises a second motor arranged in the case and an eccentric cam connected with the driving shaft of the second motor, the driving shaft of the second motor penetrates through the top wall of the case and is rotatably connected with the top wall of the case, the eccentric cam is fixedly connected with the lower positioning disc through a connecting rod, a power supply is arranged in the case, a PLC controller is further arranged on the case, and the controlled ends of the first motor and the second motor are connected with the output end of the PLC controller.

5. A digital display circular oscillator according to claim 1, characterized in that: The screw rod and the light rod are respectively arranged at two opposite ends of the diameter line of the lower positioning disc.

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