Sampling assembly for full-automatic sample detection device

Abstract

The utility model discloses a sampling component for a full-automatic sample detection device, which comprises a support, a lifting component, a rotating component and an extracting component, the extracting component is mounted on one side of the support, the rotating component is arranged at the top of the support, the rotating component is connected with the extracting component and drives the extracting component to rotate, and the lifting component is arranged at the bottom of the support. The lifting assembly is connected with the extraction component and drives the extraction component to reciprocate up and down. The utility model aims to provide the sampling assembly for the full-automatic sample detection device, which is capable of moving up and down, accurate in rotation and high in automation degree.

Description

Technical Field

[0001] The utility model relates to the field of food pesticide residue detection equipment, and more specifically to a sampling component for a full-automatic sample detection device. Background Art

[0002] Food safety testing is divided into two parts: sample pretreatment and sample testing. The operator first performs sample pretreatment and then performs food testing. Sample pretreatment includes steps such as crushing, adding extraction reagents, shaking, and extracting supernatant. During sample pretreatment, most of the work such as weighing samples, adding samples, shaking, extracting samples, and placing samples into the detector is done manually, which is prone to manual operation errors, leading to inaccurate subsequent sample test results.

[0003] In existing detection equipment, it is necessary to add pretreated samples to the detection equipment. The Chinese utility model patent: A fully automatic analyzer for pesticide residue detection, patent number: 202122733991.2 discloses the operating steps in detail, but in the actual production process, it is found that the sampling component needs to have the functions of rising, falling and rotating, and the existing technology and the components on the market do not have the above functions. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a sampling assembly for a fully automatic sample detection device that can achieve up and down movement, precise rotation, and a high degree of automation.

[0005] According to one aspect of the utility model, a sampling assembly for a fully automatic sample detection device is provided, which includes: a support, a lifting component, a rotating component and an extraction component, wherein the extraction component is installed on one side of the support, a rotating component is arranged on the top of the support, the rotating component is connected to the extraction component and drives the extraction component to rotate, and a lifting component is arranged on the bottom of the support, the lifting component is connected to the extraction component and drives the extraction component to reciprocate up and down. The support facilitates installation between the pre-treatment part and the reaction detection part, the lifting component facilitates sampling and placement of the extraction component, and the rotating component facilitates the action of transferring the sample from the pre-treatment part to the reaction detection part.

[0006] In some embodiments, the support includes: a base plate, a vertical plate and a mounting plate, the bottom of the vertical plate is fixed to the base plate, the top of the vertical plate is fixed to the mounting plate, the base plate and the mounting plate are arranged in parallel, and the vertical plate is vertically fixed between the base plate and the mounting plate.

[0007] In some embodiments, the extraction component includes: a sampling needle, a pump body and a connecting shaft, the front end of the pump body is connected to the sampling needle, the rear end of the pump body is fixedly installed with the connecting shaft, and the lifting component and the rotating component are both connected to the connecting shaft and drive the connecting shaft to move. The pump body and the sampling needle move up and down and rotate through the connecting shaft, and the sample is extracted and injected through the pump body and the sampling needle.

[0008] In some embodiments, the lifting component includes: a first motor, a guide wheel, a guide block, a slider, a first clamping sleeve, a second clamping sleeve, a third clamping sleeve and a first belt. The first clamping sleeve, the second clamping sleeve and the third clamping sleeve are arranged in sequence from bottom to top at the bottom of the connecting shaft. The slider is sleeved on the guide block. The first clamping sleeve is fixedly connected to the slider. The output end of the first motor is connected to the guide wheel through the first belt. The second clamping sleeve is fixed to the first belt. A waist-shaped hole is arranged on the top of the guide block. The end of the third clamping sleeve away from the connecting shaft is inserted into the waist-shaped hole. The first motor and the first belt are used to realize the rising or falling of the connecting shaft through the second clamping sleeve. The connecting shaft has multiple supports and moves up and down smoothly through the guide block, the slider and the waist-shaped hole.

[0009] In some embodiments, the bottom of the guide block is fixedly connected to the bracket, and the bottom of the bracket is connected to the bottom plate via a bearing. The bracket and the bearing facilitate smooth rotation of the connecting shaft.

[0010] In some embodiments, the rotating component includes: a second motor, a second belt, a driving wheel and a driven wheel, the output end of the second motor is connected to the driving wheel, the driven wheel is fixedly connected to the connecting shaft, and the second belt connects the driving wheel and the driven wheel. The rotation of the second motor drives the driven wheel to rotate, thereby realizing the rotation of the connecting shaft.

[0011] In some embodiments, both the first motor and the second motor are servo motors, which ensure accurate and reliable movements.

[0012] The utility model discloses a sampling component for a full-automatic sample detection device, which can be easily installed between a pre-treatment part and a reaction detection part through a support, and can be easily sampled and placed by a lifting component, and can be easily transferred from the pre-treatment part to the reaction detection part by a rotating component; the up-and-down movement and rotation of a pump body and a sampling needle can be realized by a connecting shaft, and sample extraction and injection can be realized by the pump body and the sampling needle; the rising or falling of the connecting shaft can be realized by a first motor and a second clamping sleeve in a first belt, and the connecting shaft can be smoothly moved up and down by a plurality of supports through a guide block, a sliding block and a waist-shaped hole; the connecting shaft can be smoothly rotated by a bracket and a bearing; the rotation of the driven wheel is driven by the rotation of the second motor to realize the rotation of the connecting shaft; and accurate and reliable movements are ensured by adopting a servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a sampling assembly for a fully automatic sample detection device of the utility model;

[0014] Figure 2 It is a schematic diagram of the installation position of the sampling assembly for the fully automatic sample detection device of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the extraction component of the sampling assembly for the fully automatic sample detection device of the utility model;

[0016] Figure 4 The utility model is a structural schematic diagram of a lifting component of a sampling assembly for a fully automatic sample detection device. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0018] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0019] like Figure 1 As shown, the sampling assembly for a fully automatic sample detection device described in the utility model comprises: a support 1, a lifting component 2, a rotating component 3 and an extraction component 4, wherein the extraction component 4 is installed on one side of the support 1, a rotating component 3 is arranged on the top of the support 1, the rotating component 3 is connected to the extraction component 4 and drives the extraction component 4 to rotate, and a lifting assembly is arranged on the bottom of the support 1, the lifting assembly is connected to the extraction component 4 and drives the extraction component 4 to reciprocate up and down. The support 1 is convenient for installation between the pre-treatment part and the reaction detection part, the lifting assembly is convenient for sampling and placement of the extraction component 4, and the rotating assembly is convenient for completing the action of extracting samples from the pre-treatment part to the reaction detection part.

[0020] like Figure 2As shown, the utility model is arranged between the pre-treatment part and the reaction detection part, and the reagent disk and the cleaning pool are arranged in an arc shape and are located on the moving path of the utility model. When the specific operation is performed: the extraction component 4 works and rotates to add the buffer solution to the sample cup; after the buffer solution is added, the sample disk is oscillated and mixed, and after the oscillation and mixing are waited for a static time, the pre-treatment process is completed; the extraction component 4 works, the extraction component 4 rotates to the sample disk position, descends to the sample cup, absorbs the extract, and rises; rotates to the reaction disk, descends to the reaction cup, spits out the extract, and moves to the cleaning pool to clean the sampling needle 41.

[0021] like Figure 3 As shown, the extraction component 4 includes: a sampling needle 41, a pump body 42 and a connecting shaft 43. The front end of the pump body 42 is connected to the sampling needle 41, and the rear end of the pump body 42 is fixedly installed with the connecting shaft 43. The lifting component 2 and the rotating component 3 are both connected to the connecting shaft 43 and drive the connecting shaft 43 to move. The pump body 42 and the sampling needle 41 move up and down and rotate through the connecting shaft 43, and the sample extraction and injection are realized through the pump body 42 and the sampling needle 41.

[0022] like Figure 4 As shown, the lifting component 2 includes: a first motor 21, a guide wheel 22, a guide block 23, a slider 24, a first clamping sleeve 25, a second clamping sleeve 26, a third clamping sleeve 27 and a first belt 28. The first clamping sleeve 25, the second clamping sleeve 26 and the third clamping sleeve 27 are arranged in sequence from bottom to top at the bottom of the connecting shaft 43. The slider 24 is sleeved on the guide block 23. The first clamping sleeve 25 is fixedly connected to the slider 24. The output end of the first motor 21 is connected to the guide wheel 22 through the first belt 28. The second clamping sleeve 26 is fixed to the first belt 28. A waist-shaped hole 29 is arranged on the top of the guide block 23. The end of the third clamping sleeve 27 away from the connecting shaft 43 is inserted into the waist-shaped hole 29. The first motor 21 and the first belt 28 are used to realize the rising or falling of the connecting shaft 43. The guide block 23, the slider 24 and the waist-shaped hole 29 make the connecting shaft 43 move up and down smoothly with multiple supports.

[0023] The bottom of the guide block 23 is fixedly connected to the bracket 210, and the bottom of the bracket 210 is connected to the bottom plate 11 through the bearing 211. The bracket 210 and the bearing 211 facilitate smooth rotation of the connecting shaft 43.

[0024] The first clamping sleeve 25 , the second clamping sleeve 26 and the third clamping sleeve 27 have similar structures and are fixed and clamped to the outer wall of the connecting shaft 43 by bolts through an open sleeve whose inner diameter is slightly larger than the outer diameter of the connecting shaft 43 .

[0025] The rotating component 3 includes: a second motor 31, a second belt 32, a driving wheel 33 and a driving wheel 34. The output end of the second motor 31 is connected to the driving wheel 33, the driving wheel 34 is fixedly connected to the connecting shaft 43, and the second belt 32 connects the driving wheel 33 and the driving wheel 34. The second motor 31 rotates to drive the driving wheel 34 to rotate, thereby realizing the rotation of the connecting shaft 43.

[0026] When the second motor 31 drives the connecting shaft 43 to rotate, the bracket 210 at the bottom of the guide block 23 rotates together with the connecting shaft 43. Due to the existence of the bracket 210 and the bearing 211, the rotation can be relatively stable even when the connecting shaft 43 and the guide block 23 are long.

[0027] During the operation of the lifting component 2, the slider 24 slides on the surface of the guide block 23, and the third clamping sleeve 27 also slides in the waist-shaped hole 29. In fact, the length of the waist-shaped hole 29 is the distance that the connecting shaft 43 slides up and down, which is between 2cm and 3cm, so that the sampling needle 41 can contact the sample. At the same time, during the process of rising or falling, the driving wheel 34 is driven to move together. Since the moving distance is not large, the elasticity of the second belt 32 can adapt to the movement together with the second motor 31 without the need for additional mechanisms.

[0028] The first motor 21 and the second motor 31 are both servo motors, which ensure accurate and reliable movements.

[0029] The support 1 includes: a bottom plate 11, a vertical plate 12 and a mounting plate 13. The bottom of the vertical plate 12 is fixed to the bottom of the vertical plate 12, and the mounting plate 13 is fixed to the top of the vertical plate 12. The bottom plate 11 and the mounting plate 13 are arranged in parallel, and the vertical plate 12 is vertically fixed between the bottom plate 11 and the mounting plate 13. In the production process, the bottom plate 11 is convenient for the utility model to be installed on the detection equipment, the first motor 21 is installed at the bottom of the back of the vertical plate 12, and the output end of the first motor 21 extends to the front of the vertical plate 12. The guide wheel 22 is installed above the front of the vertical plate 12 and is arranged on the back of the mounting plate 13. The second belt 32, the driving wheel 33 and the driving wheel 34 are all located on the front of the mounting plate 13. At the same time, the extraction component 4 is also located on the front of the mounting plate 13, so the mounting plate 13 is provided with a plurality of mounting holes as needed.

[0030] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A sampling assembly for a fully automatic sample detection device, characterized in that: include: A support, a lifting component, a rotating component and an extraction component, wherein the extraction component is installed on one side of the support, a rotating component is arranged on the top of the support, the rotating component is connected to the extraction component and drives the extraction component to rotate, and a lifting component is arranged at the bottom of the support, the lifting component is connected to the extraction component and drives the extraction component to reciprocate up and down; The support comprises: a bottom plate, a vertical plate and a mounting plate, the bottom of the vertical plate is fixed to the bottom plate, the top of the vertical plate is fixed to the mounting plate, the bottom plate and the mounting plate are arranged in parallel, and the vertical plate is vertically fixed between the bottom plate and the mounting plate; The extraction component comprises: a sampling needle, a pump body and a connecting shaft, the front end of the pump body is connected to the sampling needle, the rear end of the pump body is fixedly installed with the connecting shaft, and the lifting component and the rotating component are both connected to the connecting shaft and drive the connecting shaft to move; The lifting component includes: a first motor, a guide wheel, a guide block, a slider, a first clamping sleeve, a second clamping sleeve, a third clamping sleeve and a first belt. The bottom of the connecting shaft is provided with a first clamping sleeve, a second clamping sleeve and a third clamping sleeve in sequence from bottom to top. The slider is sleeved on the guide block. The first clamping sleeve is fixedly connected to the slider. The output end of the first motor is connected to the guide wheel through a first belt. The second clamping sleeve is fixed to the first belt. A waist-shaped hole is provided on the top of the guide block. The end of the third clamping sleeve away from the connecting shaft is inserted into the waist-shaped hole.

2. The sampling assembly for the fully automatic sample detection device according to claim 1, characterized in that: The bottom of the guide block is fixedly connected to the bracket, and the bottom of the bracket is connected to the bottom plate through a bearing.

3. The sampling assembly for the fully automatic sample detection device according to claim 2, characterized in that: The rotating component includes: a second motor, a second belt, a driving wheel and a driven wheel, the output end of the second motor is connected to the driving wheel, the driven wheel is fixedly connected to the connecting shaft, and the second belt connects the driving wheel and the driven wheel.

4. The sampling assembly for the fully automatic sample detection device according to claim 3, characterized in that: The first motor and the second motor are both servo motors.

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