Digital display blending instrument

Abstract

The utility model relates to a digital display blending instrument which comprises an upper shell and a bottom shell, the upper shell and the bottom shell are detachably connected, a supporting frame is arranged in the bottom shell, a motor is arranged on the supporting frame, an eccentric part is arranged at the position of an output shaft of the motor, the bottom shell is provided with a limiting mechanism, the limiting mechanism comprises a limiting frame and a limiting ring, and the limiting frame is connected with the bottom shell. The limiting ring is arranged on one side of the limiting frame and connected with the limiting frame through the shaking frame, the eccentric part is located on the inner side of the limiting ring, a vibration head part is arranged on the limiting ring, and a uniform mixing seat is arranged on the vibration head part; during working, one end of a to-be-uniformly-mixed blending pipe is placed at the blending seat, the motor drives the output shaft to drive the eccentric part to rotate, the eccentric part drives the limiting ring to shake, the limiting ring drives the vibration head part to drive the blending seat to shake to carry out blending operation, the shaking amplitude is small, and the limiting ring and the limiting frame are buffered through shaking of the shaking frame; the device has the effects that the influence of shaking on the operation of the whole machine is reduced, and the uniform mixing effect is relatively good.

Description

Technical Field

[0001] The present application relates to the field of laboratory instruments, and in particular to a digital display mixer. Background Art

[0002] A digital mixer is a laboratory device used to mix or shake samples to ensure uniform mixing of the samples. It is usually equipped with a digital display that can accurately control and display the mixing speed, time and other relevant parameters. Digital mixers are widely used in fields such as biological sciences, chemical reactions, pharmaceuticals and food sciences to improve the accuracy and repeatability of experimental results.

[0003] In the related technology, reference can be made to the Chinese utility model patent with authorization announcement number CN219744602U, which discloses an eccentric mixer, including a casing and a loading tray, a motor and a PCB circuit board are installed in the casing in sequence, an eccentric wheel is installed on the output shaft of the motor, and a lower variable angle sleeve is installed on the eccentric wheel, the loading tray is located on the casing, an upper variable angle sleeve is installed on the bottom of the loading tray, and the upper variable angle sleeve is sleeved with the lower variable angle sleeve; the rotation of the motor main shaft is transmitted to the eccentric wheel through the coupling spring, and the eccentric wheel transmits the reciprocating motion to the loading tray, causing it to produce a vibration effect, and at the same time, the main shaft controls the lower variable angle sleeve, which is affected by its inclined end face, thereby realizing high and low self-adjusting cyclic rotation, thereby improving the shaking effect of the upper and lower layers of the reagent.

[0004] In the above-mentioned related technologies, since the eccentric wheel is directly connected to the shaft sleeve and the material tray, when the material tray rotates, it will be driven by the eccentric wheel to produce a large amount of shaking, resulting in the whole machine not being able to run smoothly during operation and the mixing effect is not good. Utility Model Content

[0005] In order to solve the problem that the material tray shakes significantly due to the eccentric wheel when rotating, resulting in poor mixing effect, the present application provides a digital display mixer.

[0006] The digital mixer provided in this application adopts the following technical solution:

[0007] A digital display mixer comprises an upper shell and a bottom shell, the upper shell and the bottom shell are detachably connected, a support frame is arranged inside the bottom shell, a motor is arranged on the support frame, an eccentric piece is arranged at the output shaft of the motor, a limiting mechanism is arranged on the bottom shell at the eccentric piece, the limiting mechanism comprises a limiting frame and a limiting ring, the limiting frame is connected to the bottom shell, the limiting ring is arranged on one side of the limiting frame, the limiting ring is connected to the limiting frame through a shaking frame, the eccentric piece is located on the inner side of the limiting ring and fits with the inner side wall of the limiting ring, a vibration head piece is arranged on the limiting ring, one end of the vibration head piece is located on the outer side of the upper shell, and a mixing seat is arranged on the vibration head piece.

[0008] By adopting the above technical solution, when working, one end of the mixing tube to be mixed is placed at the mixing seat. The motor drives the output shaft, which in turn drives the eccentric part to rotate. The eccentric part drives the limit ring to shake, and the limit ring drives the vibration head part, which in turn drives the mixing seat to shake for mixing operations. The eccentric part drives the limit ring to shake, with a small shaking amplitude. Moreover, the limit ring and the limit frame shake through the shaking frame for buffering, reducing the impact of shaking on the operation of the whole machine, and achieving a better mixing effect.

[0009] Optionally, the vibration head part includes a vibration head base, the vibration head base is connected to the limit ring by bolts, and the mixing seat is arranged on the vibration head base and is connected to the vibration head base in a plug-in manner.

[0010] By adopting the above technical solution, the vibration head base and the limit ring are fixedly connected, and the mixing seat and the vibration head base are connected in a plug-in manner, so that different mixing seats can be replaced for mixing operations.

[0011] Optionally, the eccentric part includes an eccentric shaft and an eccentric block. An eccentric hole is provided on the eccentric shaft, and the center of the eccentric hole is offset from the axis center of the eccentric shaft. The output shaft is connected to the eccentric shaft at the eccentric hole, the eccentric block is located on one side of the eccentric hole of the eccentric shaft, and a bearing is rotatably installed on the outer side of the eccentric shaft. The outer side wall of the bearing is in contact with one side of the inner side wall of the limit ring.

[0012] By adopting the above technical solution, the output shaft drives the eccentric shaft to rotate. The eccentric block on one side of the eccentric shaft maintains the balance of the rotation of the eccentric shaft. At the same time, a bearing is arranged on the outer side of the eccentric shaft. When rotating, the outer ring of the bearing rotates along the inner side wall of the limit ring to push the limit ring to move, reducing the friction during rotation.

[0013] Optionally, the limit ring is provided with a protrusion on the inner side wall.

[0014] By adopting the above technical solution, when rotating, the outer ring of the bearing contacts the protrusion on the inner side wall of the limit ring, reducing the wear on the limit ring.

[0015] Optionally, the limit ring is provided with first connection bars at opposite sides. One end of the first connection bar away from the limit ring is connected to the shaking frame, and both ends of the first connection bar are respectively connected to the limit ring and the shaking frame through elastic strips.

[0016] By adopting the above technical solution, when the limit ring shakes, the elastic strip drives the first connection bar to rotate, which in turn drives the shaking frame to shake. The shaking of the limit ring is buffered through the elastic strip and the first connection bar. At this time, the shaking amplitude of the shaking frame is small.

[0017] Optionally, second connecting bars are arranged at opposite sides of the shaking frame. The second connecting bars and the first connecting bars are perpendicularly distributed to each other. One end of the second connecting bar away from the shaking frame is connected to the limiting frame, and both ends of the second connecting bar are respectively connected to the limiting frame and the shaking frame through elastic bars.

[0018] By adopting the above technical solution, when the shaking frame shakes, the elastic bar drives the second connecting bar to rotate. The second connecting bar and the limiting frame are connected through the elastic bar to buffer the shaking of the shaking frame. At the same time, the first connecting bar and the second connecting bar are perpendicularly distributed to each other, which can buffer the shaking of the shaking frame in all dimensions, reduce the shaking amplitude of the shaking frame, and thus reduce the shaking caused to the whole machine.

[0019] Optionally, an infrared sensor is arranged on one side of the bottom case where the shaking frame is located. There are two infrared sensors and they are distributed oppositely.

[0020] By adopting the above technical solution, when holding the mixing tube, the infrared sensor is blocked to trigger the operation of the motor to realize the jog function of mixing.

[0021] Optionally, a conical groove is arranged on the mixing base.

[0022] By adopting the above technical solution, during operation, the conical end of the mixing tube is placed at the groove of the mixing base. The contact area between the mixing tube and the mixing base is large, reducing the probability of the mixing tube coming off the mixing base.

[0023] Optionally, feet are arranged on the lower side of the bottom case, and anti-slip patterns are arranged on the lower side of the feet.

[0024] By adopting the above technical solution, by arranging the feet, the vibration during the operation of the instrument is reduced and the noise is lowered. By arranging the anti-slip patterns, the instrument is not likely to shift in position during operation.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. One end of the mixing tube to be mixed is placed at the mixing base. The motor drives the output shaft and then drives the eccentric part to rotate. The eccentric part drives the limiting ring to shake. The limiting ring drives the vibrating head part and then drives the mixing base to shake for the mixing operation. The shaking amplitude driven by the eccentric part is small, and the shaking between the limiting ring and the limiting frame is buffered by the shaking of the shaking frame, reducing the influence of the shaking on the operation of the whole machine, and the mixing effect is better;

[0027] 2. When rotating, the outer ring of the bearing contacts the protrusion on the inner side wall of the limiting ring, reducing the wear on the limiting ring;

[0028] 3. Through the mutual cooperation among the first connecting bar, the second connecting bar and the elastic bar, the shaking amplitude during the shaking of the shaking frame is reduced, and the whole machine runs relatively smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic three-dimensional structure diagram of the present application.

[0030] Figure 2 is a schematic three-dimensional structure diagram of the inner side of the bottom case of the present application.

[0031] Figure 3 is an exploded structure diagram of the eccentric member and the limiting mechanism of the present application.

[0032] Figure 4 is a schematic three-dimensional structure diagram of the lower side of the bottom case of the present application.

[0033] Those skilled in the art will understand that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions and positions of some elements in the drawings may be enlarged relative to other elements to help improve the understanding of the embodiments of the present invention.

[0034] Reference numerals: 1, upper case; 2, bottom case; 21, support frame; 22, motor; 221, output shaft; 23, control main board; 231, liquid crystal display screen; 232, touch button; 233, knob; 24, floor foot; 241, anti-slip pattern; 3, eccentric member; 31, eccentric shaft; 311, eccentric hole; 32, eccentric block; 33, bearing; 4, limiting mechanism; 41, limiting frame; 42, limiting ring; 421, protrusion; 43, first connecting bar; 44, elastic bar; 45, second connecting bar; 5, shaking frame; 6, vibration head base; 7, mixing base; 71, groove; 8, infrared sensor; 81, bracket; 82, diffuse reflection photoelectric switch; 83, infrared plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further details the present application with reference to the accompanying drawings.

[0036] The embodiment of the present application discloses a digital display mixer, referring to Figure 1 and Figure 2 , including an upper case 1 and a bottom case 2. The upper case 1 and the bottom case 2 are fixed by bolts. A support frame 21 is arranged inside the bottom case 2. A motor 22 is arranged on the support frame 21. The motor 22 is vertically arranged and the output shaft 221 of the motor 22 faces upward. The motor 22 is an external rotor DC brushless motor. A control main board 23 is arranged inside the bottom case 2. The motor 22 and the control main board 23 are electrically connected. A liquid crystal display screen 231, a touch button 232 and a knob 233 are arranged on the control main board 23.

[0037] Referring to Figure 2 andFigure 3 An eccentric piece 3 is arranged at the output shaft 221 of the motor 22, and a limiting mechanism 4 is arranged at the eccentric piece 3 of the bottom shell 2. The limiting mechanism 4 includes a limiting frame 41 and a limiting ring 42. The limiting frame 41 is arranged horizontally and is fixedly connected to the bottom shell 2 by bolts. The limiting ring 42 is arranged on one side of the limiting frame 41. The limiting frame 41 and the limiting ring 42 are in the same horizontal plane. The limiting ring 42 and the limiting frame 41 are connected by a shaking frame 5. The limiting frame 41, the limiting ring 42 and the shaking frame 5 are integrally arranged. The eccentric piece 3 is located on the inner side of the limiting ring 42 and fits with the inner wall of the limiting ring 42. A vibration head piece is arranged on the upper side of the limiting ring 42. A through hole is opened on the upper shell 1. One end of the vibration head piece passes through the through hole and is located on the outer side of the upper shell 1. A mixing seat 7 is arranged on the vibration head piece. During operation, one end of the mixing tube is placed on the mixing seat 7, the motor 22 drives the output shaft 221 and then drives the eccentric piece 3 to rotate, the eccentric piece 3 drives the limit ring 42 to shake, the limit ring 42 drives the vibrating head and then drives the mixing seat 7 to shake to perform mixing operations, the eccentric piece 3 drives the limit ring 42 to shake, the shaking amplitude is small, and the limit ring 42 and the limit frame 41 are buffered by shaking through the shaking frame 5, which reduces the influence of shaking on the operation of the whole machine, and the mixing effect is better.

[0038] Reference Figure 3 The eccentric member 3 includes an eccentric shaft 31 and an eccentric block 32. An eccentric hole 311 is provided on the eccentric shaft 31. The center of the eccentric hole 311 is staggered with the center of the axis of the eccentric shaft 31. The output shaft 221 is connected to the eccentric shaft 31 at the eccentric hole 311. The eccentric block 32 is located on one side of the eccentric hole 311 of the eccentric shaft 31 and is located on the downward side. The output shaft 221 drives the eccentric shaft 31 to rotate. The eccentric block 32 on one side of the eccentric shaft 31 maintains the balance of the rotation of the eccentric shaft 31. A bearing 33 is installed on the outer side of the eccentric shaft 31 for rotation. The outer wall of the bearing 33 fits with one side of the inner wall of the limiting ring 42. When rotating, the outer ring of the bearing 33 rotates along the inner wall of the limiting ring 42 to push the limiting ring 42 to move, thereby reducing the friction during rotation.

[0039] Reference Figure 3 The limiting ring 42 is provided with a protrusion 421 on the inner wall. When rotating, the outer ring of the bearing 33 contacts the protrusion 421 on the inner wall of the limiting ring 42 to reduce the wear on the limiting ring 42.

[0040] Reference Figure 2 An infrared sensor 8 is provided on one side of the shaking frame 5 at the base. Two infrared sensors 8 are provided and are relatively distributed. The infrared sensor 8 is fixed to the base through a bracket 81. A diffuse reflection photoelectric switch 82 is provided on the bracket 81. An infrared blocking cover 83 is provided on the upper side of the diffuse reflection photoelectric switch 82. When the mixing tube is held by hand, the infrared sensor 8 is blocked to trigger the motor 22 to run, so as to realize the inching function of mixing.

[0041] Reference Figure 3 The limiting rings 42 are located on opposite sides and are provided with first connecting bars 43 along the width direction of the base. One end of the first connecting bar 43 away from the limiting ring 42 is connected to the shaking frame 5. Two first connecting bars 43 are arranged in parallel on one side. The two ends of the first connecting bar 43 are respectively connected to the limiting ring 42 and the shaking frame 5 through elastic strips 44. The elastic strips 44 are made of elastic materials. When the limiting ring 42 shakes, the first connecting bar 43 is driven to rotate through the elastic strip 44, thereby driving the shaking frame 5 to shake. The shaking of the limiting ring 42 is buffered through the elastic strip 44 and the first connecting bar 43. At this time, the shaking amplitude of the shaking frame 5 is small. The thickness of the elastic strip 44 is less than the thickness of the first connecting bar 43. When the first connecting bar 43 shakes, there is sufficient deformation space at the elastic strip 44.

[0042] Reference Figure 3 The shaking frame 5 is located on opposite sides and is provided with second connecting bars 45 identical to the first connecting bars 43 along the length direction of the base. The second connecting bars 45 and the first connecting bars 43 are perpendicularly distributed to each other. One end of the second connecting bar 45 away from the shaking frame 5 is connected to the limiting frame 41. The two ends of the second connecting bar 45 are respectively connected to the limiting frame 41 and the shaking frame 5 through elastic strips 44. When the shaking frame 5 shakes, the second connecting bar 45 is driven to rotate through the elastic strip 44. The second connecting bar 45 and the limiting frame 41 are connected through the elastic strip 44 to buffer the shaking of the shaking frame 5. At the same time, the first connecting bar 43 and the second connecting bar 45 are perpendicularly distributed to each other, which can buffer the shaking of the shaking frame 5 in all dimensions, reduce the shaking amplitude of the shaking frame 5, and thus reduce the shaking caused to the whole machine.

[0043] Reference Figure 3 The vibrating head member includes a vibrating head base 6. The vibrating head base 6 is connected to the limiting ring 42 by bolts. A mixing base 7 is arranged on the vibrating head base 6 and is connected to the vibrating head base 6 in a plug-in manner. An elastic edging is arranged around the bottom surface of one side of the mixing base 7. The vibrating head base 6 is fixedly connected to the limiting ring 42. The mixing base 7 is connected to the vibrating head base 6 in a plug-in manner and is covered around the circumferential side of the vibrating head base 6 through the elastic edging. Different mixing bases 7 can be replaced for mixing operations.

[0044] Reference Figure 3 A conical groove 71 is arranged on the mixing base 7. During operation, the conical end of the mixing tube is placed at the groove 71 of the mixing base 7. The contact area between the mixing tube and the mixing base 7 is large, reducing the probability of coming off from the mixing base 7.

[0045] Reference Figure 4, Four feet 24 are provided on the lower side of the bottom case 2. The feet 24 are provided with anti-slip patterns 241 on their lower sides. By providing the feet 24, the vibration during the operation of the instrument is reduced and the noise is lowered. By providing the anti-slip patterns 241, the instrument is not likely to shift in position during operation.

[0046] The implementation principle of a digital display mixer in an embodiment of this application is as follows: During operation, one end of the mixing tube to be mixed is placed at the mixing seat 7. After setting the parameters, the motor 22 is started to drive the output shaft 221, which in turn drives the eccentric shaft 31 to rotate. The eccentric shaft 31 drives the limit ring 42 to shake, and the limit ring 42 drives the vibration head base 6, which in turn drives the mixing seat 7 to shake for mixing operations. The shaking amplitude of the limit ring 42 is small, and the limit ring 42 and the limit frame 41 are buffered by shaking through the shaking frame 5, reducing the impact of shaking on the overall operation of the machine, and the mixing effect is better.

[0047] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A digital display mixer, comprising an upper shell (1) and a bottom shell (2), wherein the upper shell (1) is detachably connected to the bottom shell (2), and a support frame (21) is arranged inside the bottom shell (2), and is characterized in that: The support frame (21) is provided with a motor (22), an eccentric piece (3) is provided at the output shaft (221) of the motor (22), a limiting mechanism (4) is provided at the eccentric piece (3) of the bottom shell (2), the limiting mechanism (4) comprises a limiting frame (41) and a limiting ring (42), the limiting frame (41) is connected to the bottom shell (2), the limiting ring (42) is provided on one side of the limiting frame (41), the limiting ring (42) and the limiting frame (41) are connected via a shaking frame (5), the eccentric piece (3) is located inside the limiting ring (42) and is in contact with the inner wall of the limiting ring (42), a vibration head piece is provided on the limiting ring (42), one end of the vibration head piece is located outside the upper shell (1), and a mixing seat (7) is provided on the vibration head piece.

2. The digital display mixer according to claim 1, wherein: The vibration head component comprises a vibration head base (6), the vibration head base (6) is connected to the limiting ring (42) by means of bolts, and the mixing seat (7) is arranged on the vibration head base (6) and is plug-connected to the vibration head base (6).

3. The digital display mixer according to claim 1, wherein: The eccentric member (3) comprises an eccentric shaft (31) and an eccentric block (32); an eccentric hole (311) is provided on the eccentric shaft (31); the center of the eccentric hole (311) is staggered with the center of the axis of the eccentric shaft (31); the output shaft (221) is connected to the eccentric shaft (31) at the eccentric hole (311); the eccentric block (32) is located on one side of the eccentric hole (311) of the eccentric shaft (31); a bearing (33) is rotatably mounted on the outer side of the eccentric shaft (31); the outer wall of the bearing (33) is in contact with one side of the inner wall of the limiting ring (42).

4. A digital display mixer according to claim 1, characterized in that: The limiting ring (42) is provided with a protrusion (421) on the inner side wall.

5. A digital display mixer according to claim 1, characterized in that: The limiting ring (42) is provided with first connecting strips (43) at two opposite sides, one end of the first connecting strip (43) away from the limiting ring (42) is connected to the shaking frame (5), and the two ends of the first connecting strip (43) are respectively connected to the limiting ring (42) and the shaking frame (5) via elastic strips (44).

6. The digital display mixer according to claim 5, wherein: The shaking frame (5) is provided with second connecting strips (45) at two opposite sides, the second connecting strip (45) and the first connecting strip (43) are arranged perpendicular to each other, one end of the second connecting strip (45) facing away from the shaking frame (5) is connected to the limiting frame (41), and the two ends of the second connecting strip (45) are respectively connected to the limiting frame (41) and the shaking frame (5) through elastic strips (44).

7. A digital display mixer according to claim 1, characterized in that: The bottom shell (2) is provided with an infrared sensor (8) at one side of the shaking frame (5), and two infrared sensors (8) are provided and distributed relatively to each other.

8. The digital display mixer according to claim 1, wherein: The mixing seat (7) is provided with a conical groove (71).

9. The digital display mixer according to claim 1, wherein: The bottom side of the bottom shell (2) is provided with a foot (24), and the bottom side of the foot (24) is provided with an anti-slip pattern (241).

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