Equipment for automatically and uniformly mixing centrifuged EP (epoxy resin) tube

Abstract

The utility model provides automatic uniform mixing equipment after centrifugation of an EP tube, which relates to the technical field of medical instruments and comprises a fixed base, a rotating rod is mounted on the upper surface of the fixed base through a bearing, one end of the rotating rod penetrates through and extends into the fixed base, and a worm gear is fixedly sleeved on the outer surface of one end of the rotating rod. The outer surface of the other end of the rotating rod is fixedly connected with arc-shaped limiting strips which are symmetrically distributed, the outer surface of the other end of the rotating rod is movably sleeved with a rotating sleeve, the inner top wall of the rotating sleeve is fixedly connected with a contraction spring, and one end of the contraction spring is fixedly connected with the other end of the rotating rod. According to the EP tube centrifugal separation device, the effect that batch EP tubes are driven to rotate centrifugally through rotation of the placement rotary table is achieved, interval knocking and vertical vibration are continuously conducted in the rotating process, and through automatic vibration and knocking, the manual labor force is greatly reduced, and the efficiency of mixing and layering of blood samples in the EP tubes is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an automatic mixing device for EP tubes after centrifugation. Background Art

[0002] EP tubes, also known as centrifuge tubes, play a vital role in many fields, particularly in blood testing. Made from materials such as polypropylene, they offer excellent sealing and chemical stability, and are available in various sizes to meet specific needs. In blood testing, they facilitate sample collection, with their sealed caps preventing leakage and contamination. They can withstand centrifugal forces for sample pretreatment, such as separating blood components and adding reagents. They also facilitate bulk transport and distribution, and their transparent tube walls allow for easy labeling and identification, making them a crucial tool for ensuring accurate and efficient blood testing.

[0003] After sampling, existing EP tubes need to be shaken to mix and stratify the blood inside. However, due to the small diameter of the tube, the surface tension of the liquid makes the mixing and stratification of the blood sample relatively slow. The operator needs to shake the tube for a long time, which not only requires a lot of manual labor, but also greatly reduces work efficiency when operating batches of EP tube samples.

[0004] Therefore, we propose an automatic mixing device for EP tubes after centrifugation. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art. Currently, after sampling is completed, the EP tube needs to be shaken to mix and stratify the blood inside. However, due to the small diameter of the tube, the tension on the surface of the liquid makes the mixing and stratification of the blood sample relatively slow. The operator needs to perform a long shaking action, which not only requires a lot of manual labor, but also greatly reduces the work efficiency when operating on batches of EP tube samples.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An automatic mixing device for EP tubes after centrifugation, comprising a fixed base, a rotating rod mounted on the upper surface of the fixed base via a bearing, one end of the rotating rod passing through and extending into the interior of the fixed base, a worm gear fixedly sleeved on the outer surface of one end of the rotating rod, a symmetrically distributed arc-shaped limit strip fixedly connected to the outer surface of the other end of the rotating rod, a rotating sleeve movably sleeved on the outer surface of the other end of the rotating rod, a contraction spring fixedly connected to the inner top wall of the rotating sleeve, one end of the contraction spring fixedly connected to the other end of the rotating rod;

[0008] The upper end of the rotating sleeve is provided with a vibration knocking device, and the vibration knocking device includes a placement turntable, and the lower surface of the placement turntable is fixedly connected to the upper end of the rotating sleeve.

[0009] Preferably, the lower surface of the placement turntable is fixedly connected with arc-shaped inclined plane blocks distributed in a ring array, and the upper surface of the placement turntable is provided with placement grooves distributed in a ring shape.

[0010] Preferably, the inner bottom wall of the placement groove is provided with a through hole, the inner wall of the placement groove is movably sleeved with an annular buffer block, and the lower surface of the annular buffer block is fixedly connected with support springs distributed in an annular array.

[0011] Preferably, one end of each of the support springs is fixedly connected to the inner bottom wall of the placement slot, and a blocking cover is movably inserted into the inner wall of the upper end of the placement slot.

[0012] Preferably, the upper surface of the fixed base is fixedly connected with symmetrically distributed support blocks, and the inner walls of the support blocks are mounted with extrusion rods via bearings.

[0013] Preferably, the upper surface of the fixed base is fixedly connected with symmetrically distributed adjusting sleeves, the inner wall of the adjusting sleeve is movably sleeved with a telescopic block, and one side surface of the telescopic block is fixedly connected with a natural rubber rod.

[0014] Preferably, a servo motor is fixedly mounted on the inner bottom wall of the fixed base, a worm is fixedly mounted on the output shaft of the servo motor via a coupling, and an outer surface of the worm is meshed with a tooth surface of the worm wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, the vibration and knocking device is used to realize the centrifugal rotation of batches of EP tubes by the rotation of the turntable, and continuously perform interval knocking and up and down vibration during the rotation. The automated vibration and knocking not only greatly reduces manual labor, but also significantly improves the efficiency of mixing and stratifying the blood samples inside the EP tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of an automatic mixing device for EP tubes after centrifugation provided by the utility model;

[0018] Figure 2 A three-dimensional diagram of the turntable structure of an automatic mixing device for EP tubes after centrifugation provided by the present invention;

[0019] Figure 3 A three-dimensional diagram of the fixed base structure of an automatic mixing device for EP tubes after centrifugation provided by the utility model;

[0020] Figure 4 This is a three-dimensional diagram of the annular buffer block structure of an automatic mixing device for EP tubes after centrifugation provided by the utility model.

[0021] Legend: 1. Fixed base; 2. Turntable; 3. Worm gear; 4. Arc limit strip; 5. Rotating sleeve; 6. Contraction spring; 7. Placement turntable; 71. Arc ramp block; 72. Placement slot; 73. Annular buffer block; 74. Support spring; 75. Block cover; 76. Support block; 77. Extrusion rod; 78. Adjustment sleeve; 79. Telescopic block; 710. Natural rubber rod; 711. Servo motor; 712. Worm. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Example

[0026] like Figure 1-4As shown, the utility model provides a technical solution: an automatic mixing device for EP tubes after centrifugation, comprising a fixed base 1, a rotating rod 2 is installed on the upper surface of the fixed base 1 through a bearing, one end of the rotating rod 2 passes through and extends to the interior of the fixed base 1, a worm gear 3 is fixedly sleeved on the outer surface of one end of the rotating rod 2, and a symmetrically distributed arc-shaped limiting strip 4 is fixedly connected to the outer surface of the other end of the rotating rod 2, and a rotating sleeve 5 is movably sleeved on the outer surface of the other end of the rotating rod 2, the arc-shaped limiting strip 4 plays a role in that when the rotating rod 2 drives the rotating sleeve 5 to rotate, the rotating sleeve 5 can also be lifted and moved, and the inner top wall of the rotating sleeve 5 is fixedly connected to a contraction spring 6, and one end of the contraction spring 6 is fixedly connected to the other end of the rotating rod 2;

[0027] A vibration knocking device is provided at the upper end of the rotating sleeve 5 , and the vibration knocking device includes a placement turntable 7 , the lower surface of which is fixedly connected to the upper end of the rotating sleeve 5 .

[0028] The lower surface of the placing turntable 7 is fixedly connected with arc-shaped inclined blocks 71 distributed in a ring array, and the upper surface of the placing turntable 7 is provided with placing grooves 72 distributed in a ring. After being squeezed, the arc-shaped inclined blocks 71 will drive the placing turntable 7 to move continuously upward.

[0029] The inner bottom wall of the placement groove 72 is provided with a through hole, and an annular buffer block 73 is movably sleeved on the inner wall of the placement groove 72. The lower surface of the annular buffer block 73 is fixedly connected to support springs 74 distributed in an annular array. The annular buffer block 73 plays the role of elastically limiting the upper end of the EP tube through the elastic force of the support springs 74.

[0030] One end of each of the supporting springs 74 is fixedly connected to the inner bottom wall of the placement groove 72 , and a stop cover 75 is movably inserted into the inner wall of the upper end of the placement groove 72 , and the stop cover 75 serves to limit the upper end of the EP tube.

[0031] The upper surface of the fixed base 1 is fixedly connected with symmetrically distributed support blocks 76. The inner wall of the support block 76 is installed with an extrusion rod 77 through a bearing. The extrusion rod 77 reduces friction by rotating during extrusion through the cooperation of the bearing.

[0032] The upper surface of the fixed base 1 is fixedly connected with symmetrically distributed adjusting sleeves 78, and the inner wall of the adjusting sleeve 78 is movably connected with a telescopic block 79. A natural rubber rod 710 is fixedly connected to the surface of one side of the telescopic block 79. A hand-tightened bolt is provided on the adjusting sleeve 78 to facilitate the adjustment of the height of the telescopic block 79, so that it has the effect of knocking on EP pipes of various lengths.

[0033] A servo motor 711 is fixedly mounted on the inner bottom wall of the fixed base 1, and a worm 712 is fixedly mounted on the output shaft of the servo motor 711 through a coupling. The outer surface of the worm 712 is meshed with the tooth surface of the worm wheel 3, and the servo motor 711 drives the meshed worm wheel 3 to rotate through the worm 712.

[0034] The vibration and knocking device can realize the centrifugal rotation of batches of EP tubes by the rotation of the turntable 7, and continuously perform interval knocking and up and down vibration during the rotation. The automated vibration and knocking not only greatly reduces the manual labor, but also significantly improves the efficiency of mixing and stratifying the blood samples inside the EP tubes.

[0035] The working process of this utility model:

[0036] Step 1: Lift the stop cover 75 and pass the lower end of the EP tube to be mixed through the perforation so that its upper end contacts and supports the annular buffer block 73. Then, insert the stop cover 75 into the placement groove 72 to limit the upper end of the EP tube. Start the servo motor 711 to drive the worm 712 to rotate. The rotation of the worm 712 drives the rotating rod 2 to rotate through the meshing worm gear 3. The rotation of the rotating rod 2 drives the rotating sleeve 5 to rotate through the cooperation of the arc-shaped limit strip 4. The rotation of the rotating sleeve 5 drives the EP tube placed on the turntable 7 to rotate centrifugally.

[0037] Step 2: During rotation, the lower end of the EP tube will continuously and intermittently contact and strike the natural rubber rod 710, accelerating the mixing and stratification of the blood sample inside. The rotation of the placement turntable 7 drives the arc-shaped inclined surface block 71 to rotate. When the arc-shaped inclined surface block 71 rotates to contact the squeezing rod 77, the squeezing rod 77 squeezes the inclined surface of the arc-shaped inclined surface block 71, causing it to move upward through the rotating sleeve 5, and at this time, the contraction spring 6 is stretched.

[0038] In step three, when the arc-shaped inclined surface block 71 rotates to disengage from the squeezing rod 77, the elastic force of the contraction spring 6 drives the placement turntable 7 to move downward through the rotating sleeve 5, thereby further coordinating the blood sample inside the EP tube to be mixed and layered through the movement impact during lifting and lowering. The annular buffer block 73 cooperates with the supporting spring 74 to prevent the upper end of the EP tube from being damaged by impact, and multiple EP tubes can be mixed and layered at a time, greatly improving work efficiency.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic mixing device for EP tubes after centrifugation, comprising a fixed base (1), characterized in that: A rotating rod (2) is mounted on the upper surface of the fixed base (1) via a bearing, one end of the rotating rod (2) penetrates and extends into the interior of the fixed base (1), a worm gear (3) is fixedly sleeved on the outer surface of one end of the rotating rod (2), and a symmetrically distributed arc-shaped limiting strip (4) is fixedly connected to the outer surface of the other end of the rotating rod (2), a rotating sleeve (5) is movably sleeved on the outer surface of the other end of the rotating rod (2), and a contraction spring (6) is fixedly connected to the inner top wall of the rotating sleeve (5), and one end of the contraction spring (6) is fixedly connected to the other end of the rotating rod (2); The upper end of the rotating sleeve (5) is provided with a vibration knocking device, and the vibration knocking device includes a placement turntable (7), and the lower surface of the placement turntable (7) is fixedly connected to the upper end of the rotating sleeve (5).

2. The automatic mixing device for EP tubes after centrifugation according to claim 1, characterized in that: The lower surface of the placement turntable (7) is fixedly connected with arc-shaped inclined surface blocks (71) distributed in a ring array, and the upper surface of the placement turntable (7) is provided with placement grooves (72) distributed in a ring array.

3. The automatic mixing device for EP tubes after centrifugation according to claim 2, characterized in that: The inner bottom wall of the placement groove (72) is provided with a perforation, and an annular buffer block (73) is movably sleeved on the inner wall of the placement groove (72), and the lower surface of the annular buffer block (73) is fixedly connected to support springs (74) distributed in an annular array.

4. The automatic mixing device for EP tubes after centrifugation according to claim 3, characterized in that: One end of each of the plurality of support springs (74) is fixedly connected to the inner bottom wall of the placement groove (72), and a blocking cover (75) is movably inserted into the inner wall of the upper end of the placement groove (72).

5. The automatic mixing device for EP tubes after centrifugation according to claim 1, characterized in that: The upper surface of the fixed base (1) is fixedly connected to symmetrically distributed support blocks (76), and the inner wall of the support block (76) is mounted with an extrusion rod (77) via a bearing.

6. The automatic mixing device for EP tubes after centrifugation according to claim 1, characterized in that: The upper surface of the fixed base (1) is fixedly connected to symmetrically distributed adjustment sleeves (78), the inner wall of the adjustment sleeve (78) is movably sleeved with a telescopic block (79), and one side surface of the telescopic block (79) is fixedly connected to a natural rubber rod (710).

7. The automatic mixing device for EP tubes after centrifugation according to claim 1, characterized in that: A servo motor (711) is fixedly mounted on the inner bottom wall of the fixed base (1); a worm (712) is fixedly mounted on the output shaft of the servo motor (711) via a coupling; and an outer surface of the worm (712) meshes with a tooth surface of the worm wheel (3).

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