Sample adding device with simplified structure

Abstract

The utility model relates to the technical field of sample adding devices, in particular to a sample adding device with a simplified structure, which comprises a fixedly arranged mounting plate, the mounting plate is a rectangular plate, a transverse guide rail is arranged on the upper surface of the mounting plate, and a transverse driving device is arranged on one side edge of the transverse guide rail. A moving block is slidably arranged on the upper portion of the transverse guide rail, a sliding block is arranged at the bottom of the moving block and slidably connected with the transverse guide rail, a lateral plate is arranged on the side edge of the moving block, the bottom of the lateral plate protrudes out of the lower surface of the moving block, and a positioning hole used for installing a vertical guide rail is formed in the front face of the lateral plate. And a sample adding needle is arranged on the vertical guide rail in a sliding manner, so that the overall manufacturing cost is reduced, the manufacturing difficulty is reduced, and the use effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sample addition device technology, and specifically to a sample addition device with a simplified structure. Background Technology

[0002] Most existing chemiluminescence immunoassay analyzers use swing arm or triaxial sampling devices for sample loading. For example, Chinese utility model patent application CN216771175U discloses a sampling device that uses a sampling needle and a swing arm structure to load samples. It requires components such as splines, but its structure is complex, space-consuming, and costly.

[0003] In the existing technology, a three-axis sample preparation device is used for operation. All parts are made of sheet metal to reduce costs. However, the horizontal and vertical alignment of the three-axis sample preparation device is difficult to operate during debugging. There is no convenient and quick installation method, which means that the vertical alignment correction during assembly needs to be repeatedly adjusted and continuously corrected. The debugging time is long and the difficulty is high, resulting in increased labor costs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing sample addition devices, such as the high difficulty and cost of installing the drive components, and to provide a sample addition device with a simplified structure.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a sample application device with a simplified sample application structure, comprising a fixedly mounted mounting plate, the mounting plate being a rectangular plate, a transverse guide rail being provided on the upper surface of the mounting plate, a transverse driving device being provided on one side of the transverse guide rail, a movable block being slidably disposed on the upper part of the transverse guide rail, a slider being provided at the bottom of the movable block and slidably connected to the transverse guide rail, a side plate being provided on the side of the movable block, the bottom of the side plate protruding from the lower surface of the movable block, a positioning hole for mounting a vertical guide rail being provided on the front of the side plate, and a sample application needle being slidably disposed on the vertical guide rail.

[0006] Furthermore, the lateral drive device includes a lateral motor disposed on the lower part of the mounting plate, the output part of the lateral motor is provided with an output wheel, the other end of the mounting plate is provided with a driven wheel, the output wheel and the driven wheel are connected by a conveyor belt, and the conveyor belt is connected to the side of the moving block.

[0007] Furthermore, a back plate is provided at the bottom of the vertical guide rail, the side of the back plate is connected to the side of the moving plate, a vertical motor is provided at the top of the back plate, and the bottom of the vertical motor is connected to the top of the moving block.

[0008] Furthermore, a support plate is provided on the upper part of the sample dispensing needle, and a slider is provided on the side of the support plate to slide and connect with the vertical guide rail. The output end of the vertical motor is connected to the support plate through a conveyor belt.

[0009] Furthermore, the upper part of the support plate is provided with a guide tube that connects to an auxiliary plate disposed on the movable plate.

[0010] Furthermore, the guide tube is a flexible tube.

[0011] Furthermore, the sampling needle adopts a stepped diameter design, and the outer surface of the sampling needle is coated with Teflon.

[0012] The beneficial effects of this utility model embodiment are as follows: the moving block, driven by the horizontal motor and conveyor belt, drives the back plate and vertical guide rail to move laterally. The sampling needle moves laterally according to usage requirements. A side plate extends from the side of the moving block, with its bottom protruding from the lower surface of the moving block, providing a position for the installation of the vertical guide rail. Positioning holes are opened on the front of the side plate for installing the vertical guide rail. The positioning holes on the moving block greatly reduce the difficulty of calibrating the horizontal and vertical guide rails during installation, reducing adjustment time. The guide tube is a flexible tube, allowing the sample tube and wiring of the sampling needle to be placed inside the guide tube, enabling the sampling needle to rise and fall accordingly. Compared to the existing method of using a drag chain for guidance, this reduces space occupation and overall weight, and the power of the vertical motor can also be reduced, resulting in lower manufacturing costs and reduced manufacturing difficulty, while ensuring effective use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present utility model;

[0015] Figure 3 This is a side view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the movable block of this utility model;

[0017] In the diagram: 1. Mounting plate; 101. Horizontal motor; 102. Horizontal guide rail; 2. Moving block; 201. Back plate; 202. Vertical motor; 203. Vertical guide rail; 204. Support plate; 205. Side plate; 3. Guide tube; 4. Sample dispensing needle. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] See Figures 1 to 4 This utility model discloses a simplified sample application device, including a fixed mounting plate 1, which is rectangular to provide a stable mounting base. A transverse guide rail 102 is provided on the upper surface of the mounting plate 1. A transverse motor 101 is disposed on one side of the transverse guide rail 102 to drive the sample application needle 4 to move horizontally. A moving block 2 is slidably disposed on the upper part of the transverse guide rail 102. The bottom of the moving block 2 is slidably connected to the transverse guide rail 102 via a slider, ensuring smooth movement of the moving block 2 on the transverse guide rail 102. A side plate 205 extends from the side of block 2. The bottom of the side plate 205 protrudes from the lower surface of the moving block 2, providing a position for the installation of the vertical guide rail 203. The side plate 205 has a positioning hole on its front for installing the vertical guide rail 203. The positioning hole on the moving block 2 greatly reduces the difficulty of calibrating the horizontal guide rail 102 and the vertical guide rail 203 during installation and reduces the adjustment time. A sampling needle 4 is slidably mounted on the vertical guide rail 203, which enables the sampling needle 4 to move in the vertical direction, making it easy to pick up and put down the sampling needle 4 and ensuring the effect of use.

[0020] A horizontal motor 101 is installed on the lower part of the mounting plate 1. The output part of the horizontal motor 101 is equipped with an output wheel, and a driven wheel is provided at the other end of the mounting plate 1. The output wheel and the driven wheel are connected by a conveyor belt. The conveyor belt is connected to the side of the moving block 2. When the horizontal motor 101 is started, the output wheel drives the conveyor belt to rotate, thereby driving the moving block 2 to move on the horizontal guide rail 102, reducing the space occupied and ensuring the tight cooperation of each component.

[0021] The vertical guide rail 203 is set on the back plate 201. The side of the back plate 201 is connected to the side of the moving block 2 by a pin, which provides stable support for the vertical guide rail 203. The moving block 2 drives the back plate 201 and the vertical guide rail 203 to move laterally under the drive of the horizontal motor 101 and the conveyor belt. The sampling needle 4 is moved laterally according to the usage requirements to ensure the usage effect. Compared with the existing screw drive, the cost is lower and the usage effect is more stable.

[0022] A vertical motor 202 is provided on the upper part of the back plate 201. The bottom of the vertical motor 202 is connected to the top of the moving block 2. It is used to drive the vertical guide rail 203 and the sample dispensing needle 4 on it to move in the vertical direction, and to make the center of gravity of the vertical motor 202 and the back plate 201 act on the moving block 2, so as to ensure the stability of use and improve the sample dispensing effect.

[0023] A support plate 204 is connected to the upper part of the sampling needle 4. The side of the support plate 204 is slidably connected to the vertical guide rail 203 via a slider, ensuring the smooth movement of the sampling needle 4 on the vertical guide rail 203. The output end of the vertical motor 202 is connected to the support plate 204 via a conveyor belt, and the conveyor belt of the vertical motor 202 is set above the vertical guide rail 203, which reduces the space occupied. When the vertical motor 202 is started, the support plate 204 and the sampling needle 4 on it are moved on the vertical guide rail 203 via the conveyor belt, so that the support plate 204 can drive the sampling needle 4 to rise and fall stably, ensuring the effect of use.

[0024] A guide tube 3 is provided on the upper part of the support plate 204. The other end of the guide tube 3 is connected to the auxiliary plate on the moving plate. The guide tube 3 is a flexible tube. The sample tube and wiring of the sample needle 4 can be placed inside the guide tube 3, so that the sample needle 4 can be lifted and lowered. Compared with the existing method of using a drag chain for guidance, it reduces the space occupied and the overall weight. The power of the vertical motor 202 can also be reduced accordingly, which reduces the overall manufacturing cost and manufacturing difficulty, and ensures the effect of use.

[0025] The sampling needle 4 adopts a stepped diameter design, which can adjust the sample volume as needed. The diameter of the needle gradually increases from the tip upwards. The outer surface of the sampling needle 4 is coated with Teflon, which improves the corrosion resistance and wear resistance of the sampling needle 4 and effectively reduces the liquid contact area, achieving the purpose of no liquid residue or minimal liquid residue. The simplified structure reduces costs. At the same time, it is driven by horizontal and vertical motors 202, which realizes the smooth movement of the sampling needle 4 in the horizontal and vertical directions. The design of the guide tube 3 and the flexible tube further improves the movement stability and flexibility of the sampling needle 4. The sampling needle 4 is slidably installed in the bushing and is connected to the bushing by spring force. The sampling needle 4 has a baffle or is equipped with a baffle and a detection sensor. When the sampling needle 4 collides, it moves upward. When the baffle disengages or the sensor is triggered, the system stops moving to protect the sampling needle 4 from damage. The sampling needle 4 has a double-layer structure. The inner and outer layers are made of metal and are separated by insulating material to ensure stability and reliability during use.

[0026] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0029] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A simplified sample addition device, comprising a fixedly mounted mounting plate (1), characterized in that: The mounting plate (1) is a rectangular plate. A horizontal guide rail (102) is provided on the upper surface of the mounting plate (1). A horizontal driving device is provided on one side of the horizontal guide rail (102). A moving block (2) is slidably provided on the upper part of the horizontal guide rail (102). A slider is provided at the bottom of the moving block (2) and slidably connected to the horizontal guide rail (102). A side plate (205) is provided on the side of the moving block (2). The bottom of the side plate (205) protrudes from the lower surface of the moving block (2). A positioning hole for mounting a vertical guide rail (203) is provided on the front of the side plate (205). A sample needle (4) is slidably provided on the vertical guide rail (203).

2. The simplified sample loading structure of claim 1, wherein: The lateral drive device includes a lateral motor (101) located at the lower part of the mounting plate (1). The output part of the lateral motor (101) is provided with an output wheel, and the other end of the mounting plate (1) is provided with a driven wheel. The output wheel and the driven wheel are connected by a conveyor belt, and the conveyor belt is connected to the side of the moving block (2).

3. The simplified sample loading structure of claim 1, wherein: The bottom of the vertical guide rail (203) is provided with a back plate (201), the side of the back plate (201) is connected to the side of the moving plate, the upper part of the back plate (201) is provided with a vertical motor (202), and the bottom of the vertical motor (202) is connected to the top of the moving block (2).

4. The simplified sample loading structure of claim 3, wherein: The upper part of the sample needle (4) is provided with a support plate (204), and the side of the support plate (204) is provided with a slider that is slidably connected to the vertical guide rail (203). The output end of the vertical motor (202) is connected to the support plate (204) through a conveyor belt.

5. The simplified sample loading structure of claim 4, wherein: The upper part of the support plate (204) is provided with a guide tube (3) which is connected to the auxiliary plate provided on the movable plate.

6. The simplified sample loading structure of claim 5, wherein: The guide tube (3) is a flexible tube.

7. The simplified sample loading structure of claim 1, wherein: The sample dispensing needle (4) is configured with a stepped diameter, and the outer surface of the sample dispensing needle (4) is coated with Teflon.

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