Sampling needle moving device

Abstract

A sample adding needle moving device relates to the technical field of moving devices and comprises connecting plates, sliding rails are arranged on the connecting plates, sliding blocks are slidably mounted on the sliding rails, a vertical plate is fixedly mounted between the two sliding blocks, a first motor is fixedly mounted on one side of the top of the vertical plate, and an output shaft of the first motor is fixedly connected with a lead screw. Two guide rails are arranged on one side of the lead screw, a fixing plate is connected to the lead screw in a screwed mode, connecting assemblies are installed on the fixing plate, one side of the fixing plate is installed on the two guide rails in a sliding mode, a power assembly is arranged on one side of one connecting plate, and the power assembly is connected with one sliding block. The first motor drives the fixed plate to move up and down so as to ensure the up-down movement of the sample adding needle, the second motor drives the driving belt wheel to rotate, the driving belt wheel drives the driven walking wheel shaft to rotate through the synchronous belt, and the driven walking wheel shaft controls the two transmission wheels to rotate, so that the front-back movement of the vertical plate is ensured, and the movement flexibility of the sample adding needle is improved; and the movement requirements on other structural members are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile devices, in particular to a sampling needle moving device. Background Art

[0002] In an automatic solid-phase extraction instrument, the sampling needle is fixed at one position, and the sample tube tray and the extraction column tray cannot be at the same position. There is a risk of sample liquid splashing out when the sample tube tray and the extraction column tray move. Therefore, the sampling needle needs to move back and forth to cooperate with the work of the sample tube tray and the extraction column tray. Summary of the Utility Model

[0003] The utility model provides a sampling needle moving device.

[0004] In order to achieve the above object, the utility model adopts the following technical solutions:

[0005] A sampling needle moving device includes a connecting plate. Sliding rails are arranged on the connecting plate, and sliders are slidably mounted on the sliding rails. A vertical plate is fixedly installed between the two sliders. A first motor is fixedly installed on one side of the top of the vertical plate, and the output shaft of the first motor is fixedly connected to a lead screw. Two guide rails are arranged on one side of the lead screw. A fixing plate is screwed on the lead screw. A connecting component is installed on the fixing plate. One side of the fixing plate is slidably mounted on the two guide rails. A power component is arranged on one side of one of the connecting plates, and the power component is connected to one of the sliders.

[0006] A further preferred solution of the utility model: The connecting component includes a balance column and a stabilizing plate. The middle part of the fixing plate is fixedly connected to the stabilizing plate through the balance column. A plurality of through holes are formed in both the fixing plate and the stabilizing plate.

[0007] A further preferred solution of the utility model: The power component includes a second motor, a side plate, a driving pulley, a transmission pulley, a transmission belt, a synchronous belt and a driven pulley shaft. The side plate is fixedly installed on one side of the connecting plate. The second motor is fixedly installed at the bottom of the side plate. The output shaft of the second motor passes through the side plate and is fixedly connected to the driving pulley. A driven pulley shaft is arranged on one side of the driving pulley. Transmission pulleys are installed at the top of the driven pulley shaft and on one side of the side plate respectively. The driving pulley is connected to the driven pulley shaft through the synchronous belt, and the transmission pulleys are connected through the transmission belt.

[0008] A further preferred solution of the utility model: The driven pulley shaft and the transmission pulley at the top of the driven pulley shaft rotate synchronously.

[0009] A further preferred solution of the utility model: One side of the transmission belt is fixedly connected to the slider.

[0010] The utility model has the following beneficial effects:

[0011] In the present utility model, the up-and-down movement of the sample adding needle can be ensured by driving the fixed plate to move up and down through the first motor. The second motor drives the driving pulley to rotate, and the driving pulley drives the driven pulley shaft to rotate through the synchronous belt transmission. The driven pulley shaft controls the rotation of the two transmission wheels, ensuring the front-and-back movement of the vertical plate, increasing the movement flexibility of the sample adding needle, and reducing the movement requirements for other structural components. Brief Description of the Drawings

[0012] Figure 1 is the front view structural schematic diagram of the present utility model;

[0013] Figure 2 is the side view structural schematic diagram of the present utility model;

[0014] In the figure: 1 connecting plate, 2 slide rail, 3 slider, 4 vertical plate, 5 fixed plate, 6 lead screw, 7 first motor, 8 stabilizing plate, 9 balance column, 10 guide rail, 11 second motor, 12 driving pulley, 13 driven pulley shaft, 14 transmission wheel, 15 synchronous belt, 16 transmission belt. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0016] According to Figure 1-2 As shown, a sample adding needle moving device includes a connecting plate 1. Slide rails 2 are arranged on the connecting plate 1. Sliders 3 are slidably installed on the slide rails 2. A vertical plate 4 is fixedly installed between the two sliders 3. A first motor 7 is fixedly installed on one side of the top of the vertical plate 4. The output shaft of the first motor 7 is fixedly connected to a lead screw 6. Two guide rails 10 are arranged on one side of the lead screw 6. A fixed plate 5 is screwed on the lead screw 6. A connecting component is installed on the fixed plate 5. One side of the fixed plate 5 is slidably installed on the two guide rails 10. A power component is arranged on one side of one of the connecting plates 1, and the power component is connected to one of the sliders 3.

[0017] The connecting component includes a balance column 9 and a stabilizing plate 8. The middle part of the fixed plate 5 is fixedly connected to the stabilizing plate 8 through the balance column 9. A plurality of through holes are opened on both the fixed plate 5 and the stabilizing plate 8, and sample adding needles are installed in these through holes.

[0018] The power assembly includes a second motor 11, a side plate, a driving pulley 12, a transmission pulley 14, a transmission belt 16, a timing belt 15 and a follower pulley shaft 13. The side plate is fixedly installed on one side of the connecting plate 1. The second motor 11 is fixedly installed at the bottom of the side plate. The output shaft of the second motor 11 passes through the side plate and is fixedly connected to the driving pulley 12. A follower pulley shaft 13 is arranged on one side of the driving pulley 12. Transmission pulleys 14 are installed on the top of the follower pulley shaft 13 and on one side of the side plate. The driving pulley 12 is connected to the follower pulley shaft 13 through the timing belt 15, and the transmission pulleys 14 are connected through the transmission belt 16.

[0019] The follower pulley shaft 13 and the transmission pulley 14 at the top of the follower pulley shaft 13 rotate synchronously, and such a setting can perform transmission.

[0020] One side of the transmission belt 16 is fixedly connected to the slider 3, and such a setting can control the movement of the slider 3 by controlling the transmission belt 16.

[0021] Working principle: The first motor 7 drives the lead screw 6 to rotate. The lead screw 6 drives the fixing plate 5 to move up and down. The guide rail 10 simultaneously limits the fixing plate 5, which can ensure the up and down movement of the sampling needle. The second motor 11 drives the driving pulley 12 to rotate. The driving pulley 12 drives the follower pulley shaft 13 to rotate through the timing belt 15. The follower pulley shaft 13 controls the rotation of the two transmission pulleys 14, ensuring the front and back movement of the vertical plate 4.

[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sample needle moving device, characterized in that: The invention comprises a connecting plate (1), wherein each connecting plate (1) is provided with a slide rail (2), a slider (3) is slidably mounted on the slide rail (2), a vertical plate (4) is fixedly mounted between two sliders (3), a first motor (7) is fixedly mounted on one side of the top of the vertical plate (4), an output shaft of the first motor (7) is fixedly connected to a lead screw (6), two guide rails (10) are arranged on one side of the lead screw (6), a fixing plate (5) is screwed on the lead screw (6), a connecting assembly is mounted on the fixing plate (5), one side of the fixing plate (5) is slidably mounted on the two guide rails (10), a power assembly is arranged on one side of one of the connecting plates (1), and the power assembly is connected to one of the sliders (3).

2. A sample adding needle moving device according to claim 1, characterized in that: The connection assembly comprises a balancing column (9) and a stabilizing plate (8); the middle portion of the fixing plate (5) is fixedly connected to the stabilizing plate (8) via the balancing column (9); and a plurality of through holes are provided on the fixing plate (5) and the stabilizing plate (8).

3. The device for moving a sample needle according to claim 1, characterized in that: The power assembly comprises a second motor (11), a side plate, a driving pulley (12), a transmission wheel (14), a transmission belt (16), a synchronous belt (15) and a slave wheel shaft (13); the side plate is fixedly mounted on one side of the connecting plate (1); the second motor (11) is fixedly mounted on the bottom of the side plate; the output shaft of the second motor (11) passes through the side plate and is fixedly connected to the driving pulley (12); a slave wheel shaft (13) is arranged on one side of the driving pulley (12); the transmission wheel (14) is installed on the top of the slave wheel shaft (13) and one side of the side plate; the driving pulley (12) and the slave wheel shaft (13) are connected by a synchronous belt (15); and the transmission wheels (14) are connected by a transmission belt (16).

4. A sample adding needle moving device according to claim 3, characterized in that: The step wheel shaft (13) and the transmission wheel (14) at the top of the step wheel shaft (13) rotate synchronously.

5. The device for moving a sample needle according to claim 3, characterized in that: One side of the transmission belt (16) is fixedly connected to the slider (3).

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