Uniform mixing device of reaction cup

Abstract

The utility model provides a reaction cup mixing device which comprises a supporting base, a motor and a reaction cup fixing base are fixedly installed on the supporting base, the driving end of the motor is sequentially and coaxially connected with an eccentric transmission assembly and a mixing assembly, a through hole for limiting a reaction cup is formed in the top end of the reaction cup fixing base, and the eccentric transmission assembly is connected with the mixing assembly. The reaction cup can be inserted into the uniform mixing assembly through the through hole; a sensor is further arranged on the supporting base, after a sample to be detected in the reaction cup is uniformly mixed, the sample to be detected can be reset under the action of the sensor, so that the eccentric transmission assembly is reset to an initial state to wait for the next uniform mixing operation of the reaction cup. Through the reaction cup fixing seat, better stability is provided and vibration is reduced in the process of rotating, centrifuging and uniformly mixing the reaction cup, and unnecessary swinging or shaking possibly generated in the centrifuging process is reduced; the separation and concentration effects of substances in the sample are improved, and the centrifugal mixing operation is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of medical electronic equipment, in particular to a reaction cup mixing device. Background Art

[0002] With the rapid development of medical devices, detection and analysis systems are gradually being widely used in clinical laboratories. Taking chemiluminescent immunoassay analyzers as an example, the samples to be tested include but are not limited to blood, urine or other liquids, because the samples to be tested need to be fully mixed with the reaction reagents before entering the incubator in order to improve the accuracy of subsequent tests. This type of detection of trace and small amounts of samples generally uses an eccentric self-vibration mixing method, and in order to avoid excessive vibration amplitude, which may cause the sample to spill, the sample to be tested only vibrates the lower part of the reaction cup eccentrically.

[0003] The existing mixing component cannot ensure that the liquid in the reaction cup is fully reacted or fully mixed, and the liquid in the reaction cup is prone to splashing when the volume reaches a certain amount. Utility Model Content

[0004] The utility model aims to provide a reaction cup mixing device to solve the above-mentioned deficiencies of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A reaction cup mixing device comprises a support base, a motor and a reaction cup fixing seat are fixedly mounted on the support base, an eccentric transmission component and a mixing component are coaxially connected to the driving end of the motor in sequence, a through hole for limiting the reaction cup is opened at the top of the reaction cup fixing seat, and the reaction cup can be inserted into the mixing component through the through hole;

[0007] A photoelectric sensor is also arranged on the support base, and a photoelectric baffle capable of triggering the photoelectric sensor is arranged at the lower end of the eccentric transmission assembly.

[0008] Furthermore, the support base includes a support plate and a plurality of support feet vertically connected to the lower end surfaces of the support plates, the motor is fixedly mounted on the lower end surface of the support plate, and the driving end of the motor passes through the support plate and is connected to the eccentric transmission assembly.

[0009] Furthermore, the reaction cup fixing seat comprises a vertical plate having one end fixedly connected to the upper end surface of the support plate and a horizontal plate vertically connected to the other end of the vertical plate, and the horizontal plate is provided with a through hole for limiting the reaction cup.

[0010] It can be seen from the above technical solutions that the utility model provides better stability and reduces vibration during the rotation and centrifugal mixing of the reaction cup through the reaction cup fixing seat, thereby reducing unnecessary swinging or shaking that may occur during centrifugation; improving the effect of separation and concentration of substances in the sample, and ensuring that the centrifugal mixing operation is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] In the figure: 1. support plate; 2. support foot; 3. motor; 4. reaction cup fixing seat; 5. eccentric transmission assembly; 6. mixing assembly; 7. reaction cup; 8. photoelectric sensor; 9. photoelectric baffle. DETAILED DESCRIPTION

[0013] A preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0014] like Figure 1 The reaction cup mixing device shown includes a supporting base. Specifically, the supporting base includes a support plate 1 and two supporting legs 2 vertically connected to the lower end surface of the support plate; the supporting base 1 is fixedly installed with a motor 3 and a reaction cup fixing seat 4, and the driving end of the motor is coaxially connected with an eccentric transmission assembly 5 and a mixing assembly 6 in sequence, and the motor 3 is fixedly installed on the lower end surface of the support plate 1, and the driving end of the motor 3 passes through the support plate 1 and is connected to the eccentric transmission assembly 5; the reaction cup fixing seat 4 described in this preferred embodiment includes a vertical plate fixedly connected to the upper end surface of the support plate 1 at one end and a horizontal plate vertically connected to the other end of the vertical plate, and the horizontal plate is provided with a through hole for limiting the reaction cup 7, and the reaction cup 7 can be inserted into the mixing assembly 6 through the through hole, and the reaction cup 7 is limited by the reaction cup fixing seat 4, providing better stability and reducing the vibration of the reaction cup 7 during the mixing process.

[0015] In specific use, the reaction cup 7 is placed in the mixing component 6. After the motor 3 is started, it drives the eccentric transmission component 5 to rotate. Through its internal asymmetric structure, the rotation axis and the center of mass do not coincide, thereby generating eccentric motion during rotation, thereby preventing the liquid inside the reaction cup 7 from splashing.

[0016] In order to realize the automatic resetting of the eccentric transmission assembly 5, the start and stop and the rotation direction of the motor 3 are automatically controlled by the instrument control program. A photoelectric sensor 8 is also arranged on the support base, and a photoelectric baffle 9 capable of triggering the photoelectric sensor 8 is arranged at the lower end of the eccentric transmission assembly 5. The photoelectric sensor is a sensor using a photoelectric device as a conversion element, generally composed of an emitting light source, a light medium photoelectric element and a measuring electrode. Its basic principle is based on the photoelectric effect, converting the measured change into the change of the light signal, and then further converting the light signal into an electrical signal with the help of the photoelectric element; the photoelectric detection method has the advantages of high precision, fast response, and non-contact. The photoelectric sensor has a simple structure and flexible and diverse forms, and is widely used in detection and control.

[0017] Specifically, under normal circumstances, the photoelectric element cannot receive the straight light beam emitted by the emitting light source. When the medium passes by, it blocks the light beam and reflects part of the light beam. At this time, the photoelectric element receives the light signal and outputs a switch signal.

[0018] In this preferred embodiment, the photoelectric baffle 9 is equivalent to a photoelectric medium; specifically, when the photoelectric baffle 9 enters the sensing range of the photoelectric sensor 8, the sensor is triggered to send an electrical signal to the instrument control program, controlling the motor 3 to rotate in the opposite direction, thereby resetting the eccentric transmission assembly 5.

[0019] The above-described embodiments are merely descriptions of preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A reaction cup mixing device, comprising a supporting base, characterized in that: The support base is fixedly mounted with a motor and a reaction cup fixing seat, the driving end of the motor is coaxially connected with an eccentric transmission assembly and a mixing assembly in sequence, the top of the reaction cup fixing seat is provided with a through hole for limiting the reaction cup, and the reaction cup can be inserted into the mixing assembly through the through hole; A photoelectric sensor is also arranged on the support base, and a photoelectric baffle capable of triggering the photoelectric sensor is arranged at the lower end of the eccentric transmission assembly.

2. A reaction cup mixing device according to claim 1, characterized in that: The support base includes a support plate and a plurality of support feet vertically connected to the lower end surfaces of the support plates. The motor is fixedly mounted on the lower end surface of the support plate. The driving end of the motor passes through the support plate and is connected to the eccentric transmission assembly.

3. A reaction cup mixing device according to claim 2, characterized in that: The reaction cup fixing seat comprises a vertical plate with one end fixedly connected to the upper end surface of the support plate and a horizontal plate vertically connected to the other end of the vertical plate, and the horizontal plate is provided with a through hole for limiting the reaction cup.

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