Sampling device with stirring function

Abstract

The utility model belongs to the technical field of sampling devices, and particularly relates to a sampling device with a stirring function, a lifting driving motor and a lifting transmission assembly on the sampling device drive a sampling needle to do lifting motion, and a steering driving motor and a steering transmission assembly on the sampling device drive the sampling needle and a connecting structure to do overall rotation motion. A hose is arranged at the lower end of a sampling needle of the sampling device, a connecting pipe is arranged at the upper end of the sampling needle, a shifting wheel is arranged on the connecting pipe, the upper end of the connecting pipe is inserted into a fixed pipe, shifting teeth are in contact with the shifting wheel, and a micro motor drives the connecting pipe to rotate in the fixed pipe, so that the sampling needle has a better stirring function.

Description

Technical Field

[0001] This application belongs to the field of sampling device technology, and in particular relates to a sampling device with a stirring function. Background Technology

[0002] The sampling device is used to draw and release the sample liquid to form the liquid to be tested. After the sample liquid is released, it needs to be stirred to make it mixed evenly. However, the sampling needle is a straight needle-shaped structure. To achieve the stirring function, a special stirrer is required. This requires two systems to realize the sampling and stirring functions respectively.

[0003] In addition, the sampling needle is a straight needle-like structure, and the effect of directly using the sampling needle for stirring is not good. Utility Model Content

[0004] In order to solve the above problems, this application provides a sampling device with a stirring function.

[0005] The purpose of this application is to provide a sampling device with a stirring function, which uses a micro motor to drive the sampling needle to rotate, thereby achieving the stirring function.

[0006] To achieve the purpose of this application, the technical solution of this application is as follows:

[0007] A sampling device with a stirring function includes a support and a sampling needle. The support is equipped with a lifting drive motor and a steering drive motor. A lifting transmission assembly is mounted on the output shaft of the lifting drive motor. A connecting seat is mounted on the lifting transmission assembly, and a bearing is mounted on the connecting seat. A splined shaft is housed within the bearing. A steering transmission assembly is mounted on the output shaft of the steering drive motor. A turntable is mounted on the steering transmission assembly, and the splined shaft passes through the turntable. A top cover box is mounted on the upper end of the splined shaft, and a micro motor is housed within the top cover box. A toggle gear is mounted on the output shaft of the micro motor. The lower end of the sampling needle is equipped with a flexible tube, and the upper end of the sampling needle is equipped with a connecting tube. A dial wheel is installed on the connecting tube, and the upper end of the connecting tube is inserted into the fixed tube. The dial wheel contacts the moving teeth, and the connecting tube is driven by a micro motor to rotate within the fixed tube. In this application, the sampling needle is driven to rotate by a micro motor. The front end of the sampling needle is equipped with a flexible tube, which can prevent the front end of the sampling needle from colliding with the sample storage tube. The flexible tube can also be bent. The rotation of the sampling needle will drive the flexible tube to rotate. While the sampling needle has a stirring function, the flexible tube can also be used to accelerate the stirring effect.

[0008] Furthermore, the inner circumference of the dial is provided with a raised rib, and the connecting tube is provided with a groove. The raised rib is inserted into the groove, and the dial and the connecting tube are stably connected through the cooperation of the raised rib and the groove.

[0009] Furthermore, a sealing ring is installed inside the fixed tube, and the outer circumference of the upper end of the connecting tube contacts the inner circumference of the sealing ring. Through the sealing ring, a sealed connection between the connecting tube and the fixed tube is achieved. At the same time, the sealing ring assists the connecting tube in rotating inside the fixed tube.

[0010] Furthermore, several paddles are provided on the outer periphery of the dial, and the paddles cooperate more stably with the actuating teeth, so that the micro motor can drive the sampling needle to rotate more stably.

[0011] Furthermore, the lifting transmission assembly includes two synchronous pulleys arranged vertically, with a synchronous belt mounted on each pulley. The output shaft of the lifting drive motor is connected to one of the synchronous pulleys, and the connecting seat is fixedly connected to the synchronous belt.

[0012] Furthermore, the steering transmission assembly includes two horizontally arranged synchronous pulleys with a synchronous belt on them. The output shaft of the steering drive motor is connected to one of the synchronous pulleys, and the turntable is mounted on the other synchronous pulley.

[0013] Furthermore, a base is provided at the lower end of the bracket, and mounting holes are provided on the base.

[0014] Furthermore, a vertical plate is provided on the base, and the lifting drive motor is installed on the vertical plate.

[0015] Furthermore, the upright plate is provided with a support plate and a top plate arranged opposite to each other, with the top plate located above the support plate. The steering drive motor is installed on the support plate, and the turntable is installed in the through hole of the top plate.

[0016] Furthermore, the steering drive motor is positioned above the lifting drive motor.

[0017] Compared with the prior art, the beneficial effects of this application are as follows:

[0018] 1. In this application, the sampling needle is fitted with a connecting tube, which is inserted into the fixed tube. With the help of a sealing ring, the connecting tube and the fixed tube are sealed together. The connecting tube can also rotate inside the fixed tube. The dial wheel installed on the outer periphery of the connecting tube is connected to the actuating teeth installed on the output shaft of the micro motor. The micro motor provides power so that the sampling needle can rotate.

[0019] 2. The front end of the sampling needle in this application is a flexible tube. The flexible tube can prevent the front end of the sampling needle from colliding with the sample storage tube. In addition, unlike a rigid sampling needle, the flexible tube can be bent. The rotation of the sampling needle will drive the flexible tube to rotate. While the sampling needle has a stirring function, the bent flexible tube can also achieve the effect of accelerating the stirring. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] Figure 1 This is a schematic diagram of the overall structure of this application in one direction;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application in the oblique viewing direction;

[0023] Figure 3 This is a schematic diagram of the overall structure of this application in the rear oblique view direction;

[0024] Figure 4 This is a top view of this application;

[0025] Figure 5 A schematic diagram of the structure for the sampling needle, connecting tube, dial, and fixing tube.

[0026] In the picture:

[0027] 1. Bracket, 2. Lifting drive motor, 3. Steering drive motor, 4. Lifting transmission assembly, 5. Steering transmission assembly, 6. Connecting seat, 7. Bearing, 8. Splined shaft, 9. Turntable, 10. Top cover box, 11. Sampling needle, 12. Hoses, 13. Connecting tube, 14. Dial wheel, 15. Fixing tube. Detailed Implementation

[0028] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] In this application, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this application and do not specifically refer to any part or element in this application. They should not be construed as limiting this application.

[0031] Example 1

[0032] This embodiment is a sampling device with a stirring function, including a support 1, which is the supporting base of the entire component. Specifically, the support 1 in this embodiment is equipped with a lifting drive motor 2 and a steering drive motor 3. The output shaft of the lifting drive motor 2 is equipped with a lifting transmission assembly 4, and the output shaft of the steering drive motor 3 is equipped with a steering transmission assembly 5. The function of the lifting drive motor 2 and the lifting transmission assembly 4 is to drive the sampling needle 11 to move up and down, that is, to realize the vertical insertion of the sampling needle 11 into the sample storage tube. The steering drive motor 3 and the steering transmission assembly 5 drive the sampling needle 11 and the connecting structure to rotate as a whole, so as to realize the movement of the sampling needle 11 between different positions.

[0033] In this embodiment, the lifting transmission assembly 4 is equipped with a connecting seat 6. Specifically, the lifting transmission assembly 4 includes two synchronous pulleys arranged in a vertical direction. The two synchronous pulleys have the same diameter and a synchronous belt on them. The output shaft of the lifting drive motor 2 is connected to one of the synchronous pulleys, and the connecting seat 6 is fixedly connected to the synchronous belt.

[0034] The steering transmission assembly 5 in this embodiment includes two horizontally arranged synchronous pulleys with different diameters. A synchronous belt is mounted on the synchronous pulleys. The output shaft of the steering drive motor 3 is connected to one of the synchronous pulleys, which is a small-diameter synchronous pulley. The turntable 9 is mounted on the other synchronous pulley, which is a large-diameter synchronous pulley.

[0035] In this embodiment, a bearing 7 is installed on the connecting seat 6, and a spline shaft 8 is installed inside the bearing 7, so that the spline shaft 8 can rotate within the bearing 7. The spline shaft 8 passes through the turntable 9, which has splines inside, so that the turntable 9 rotates and drives the spline shaft 8 to rotate. A top cover box 10 is installed on the upper end of the spline shaft 8.

[0036] In this embodiment, a micro motor is installed inside the top cover box 10. A toggle tooth is installed on the output shaft of the micro motor. A connecting tube 13 is installed on the upper end of the sampling needle 11. The sampling needle 11 and the connecting tube 13 are fixedly connected. A dial 14 is installed on the connecting tube 13. Specifically, the dial 14 and the connecting tube 13 are connected as follows: the inner circumference of the dial 14 has a protrusion, and the connecting tube 13 has a groove. The protrusion is inserted into the groove. Through the cooperation of the protrusion and the groove, the dial 14 and the connecting tube 13 are stably connected. The toggle tooth contacts the dial 14, and the micro motor drives the connecting tube 13 to rotate within the fixed tube 15. Specifically, the outer circumference of the dial 14 has several paddles. When the toggle tooth contacts the paddle, the paddle and the toggle tooth cooperate more stably, so that the micro motor can drive the sampling needle 11 to rotate more stably.

[0037] In this embodiment, the upper end of the connecting tube 13 is inserted into the fixed tube 15. Specifically, there is a sealing ring inside the fixed tube 15. The outer circumference of the upper end of the connecting tube 13 contacts the inner circumference of the sealing ring. The sealing ring can achieve a sealed connection between the connecting tube 13 and the fixed tube 15. At the same time, the sealing ring assists the connecting tube 13 to rotate inside the fixed tube 15.

[0038] In this embodiment, a flexible tube 12 is installed at the lower end of the sampling needle 11. The flexible tube 12 can be a thin-walled tube, so that the sampling needle 11 can be rotated by a micro motor. The front end of the sampling needle 11 has a flexible tube 12, which can not only prevent the front end of the sampling needle 11 from colliding with the sample storage tube, but also the flexible tube 12 can be bent. The rotation of the sampling needle 11 will drive the flexible tube 12 to rotate. While the sampling needle 11 has a stirring function, the flexible tube 12 can also be used to accelerate the stirring effect.

[0039] It should be noted that the hose 12 in this embodiment can also be a thick-walled hose, and the hose 12 itself is also made into a curved shape. The thick-walled hose 12 is not easily deformed and can also achieve the stirring function.

[0040] As one implementation scheme, the tubing 12 and the sampling needle 11 in this embodiment are connected by adhesive, and the sample storage tube in this embodiment is in an open state.

[0041] In this embodiment, a base is installed at the lower end of the bracket 1. The base has mounting holes, and the base is installed on the corresponding equipment by bolts. Specifically, a vertical plate is installed on the base, and the lifting drive motor 2 is installed on the vertical plate. The installation position of the lifting drive motor 2 is below the installation position of the steering drive motor 3, that is, the steering drive motor 3 is arranged above the lifting drive motor 2 to avoid interference between the steering drive motor 3 and the lifting drive motor 2. In addition, the lifting drive motor 2 is below and the steering drive motor 3 is above, which makes the center of gravity more stable. The vertical plate has a support plate and a top plate arranged opposite to each other. The top plate is located above the support plate, the steering drive motor 3 is set on the support plate, and the turntable 9 is installed in the through hole of the top plate.

[0042] In this embodiment, the sampling device is used in conjunction with the steering drive motor 3 and the steering transmission assembly 5 to position the sampling needle 11 above the sample storage tube. The lifting drive motor 2 and the lifting transmission assembly 4 work together to lower the sampling needle 11 and extract the sample liquid. Then the sampling needle 11 rises, the top cover box 10 rotates to another position, and then the sampling needle 11 falls to discharge the sample liquid.

[0043] When the sample solution needs to be stirred, the sampling needle 11 is inserted into the sample storage tube, the micro motor is started, and the sampling needle 11 rotates to achieve the stirring function.

[0044] When cleaning is required, the sampling needle 11 can be moved to the cleaning station, and after cleaning, it can be moved to the sampling station for sampling.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0046] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A sampling device with stirring function, comprising a support (1) and a sampling needle (11), characterized in that: a lifting drive motor (2) and a steering drive motor (3) are arranged on the support (1), a lifting transmission assembly (4) is arranged on the output shaft of the lifting drive motor (2), a connecting seat (6) is arranged on the lifting transmission assembly (4), a bearing (7) is arranged on the connecting seat (6), and a spline shaft (8) is arranged in the bearing (7); a steering transmission assembly (5) is arranged on the output shaft of the steering drive motor (3), a rotating disc (9) is arranged on the steering transmission assembly (5), the spline shaft (8) is arranged in the rotating disc (9), a top cover box (10) is arranged on the upper end of the spline shaft (8), a micro motor is arranged in the top cover box (10), and a driving tooth is arranged on the output shaft of the micro motor; a hose (12) is arranged on the lower end of the sampling needle (11), a connecting pipe (13) is arranged on the upper end of the sampling needle (11), a driving wheel (14) is arranged on the connecting pipe (13), the upper end of the connecting pipe (13) is inserted into a fixed pipe (15), the driving tooth is in contact with the driving wheel (14), and the connecting pipe (13) is driven by the micro motor to rotate in the fixed pipe (15).

2. The sampling device with stirring function according to claim 1, characterized in that: a convex strip is arranged on the inner periphery of the driving wheel (14), a recess is arranged on the connecting pipe (13), and the convex strip is inserted into the recess.

3. The sampling device with stirring function according to claim 1, characterized in that: a sealing ring is arranged in the fixed pipe (15), and the outer periphery of the upper end of the connecting pipe (13) is in contact with the inner periphery of the sealing ring.

4. The sampling device with stirring function according to claim 1, characterized in that: a plurality of driving pieces are arranged on the outer periphery of the driving wheel (14).

5. The sampling device with stirring function according to claim 1, characterized in that: the lifting transmission assembly (4) comprises two synchronous pulleys arranged in the vertical direction, a synchronous belt is arranged on the synchronous pulleys, the output shaft of the lifting drive motor (2) is connected with one synchronous pulley, and the connecting seat (6) is fixedly connected with the synchronous belt.

6. The sampling device with stirring function according to claim 1, characterized in that: the steering transmission assembly (5) comprises two synchronous pulleys arranged in the horizontal direction, a synchronous belt is arranged on the synchronous pulleys, the output shaft of the steering drive motor (3) is connected with one synchronous pulley, and the rotating disc (9) is arranged on the other synchronous pulley.

7. The sampling device with stirring function according to claim 1, characterized in that: a base is arranged on the lower end of the support (1), and a mounting hole is arranged on the base.

8. The sampling device with stirring function according to claim 7, characterized in that: a vertical plate is arranged on the base, and the lifting drive motor (2) is arranged on the vertical plate.

9. The sampling device with stirring function according to claim 8, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ The vertical plate is provided with oppositely arranged bearing plate and top plate, the top plate is above the bearing plate, the steering drive motor (3) is arranged on the bearing plate, and the rotating disc (9) is arranged in the through hole of the top plate.

10. The sampling device with stirring function according to claim 9, characterized in that: The steering drive motor (3) is arranged above the lifting drive motor (2).

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