Automatic sampler with oscillation function and sample detection device

Abstract

The utility model relates to sample injector manufacturing technical field discloses a kind of automatic sample injector with oscillation function and sample detection equipment. Wherein automatic sample injector with oscillation function includes sample injection unit and oscillation unit, sample injection unit includes sample injection subassembly and bearing assembly, bearing assembly includes bearing platform and sample disc, sample disc is set on bearing platform, sample injection subassembly is set on the side of bearing platform, oscillation unit is set on the side of bearing platform away from sample injection subassembly, oscillation unit includes the clamping subassembly and oscillation drive piece connected, clamping subassembly is used to clamp sample disc, oscillation unit can oscillate to sample disc, so that oscillation unit and sample injection unit are relatively independent in spatial layout, reduce the risk of oscillation damage and facilitate its installation overhaul, simultaneously, oscillation unit does not need to be limited to the space structure below sample injection unit, and oscillation unit is added to sample injection unit without oscillation function, and online oscillation is realized.

Description

Technical Field

[0001] This utility model relates to the field of sample injector manufacturing technology, and in particular to an automatic sample injector with oscillation function and sample testing equipment. Background Technology

[0002] An autosampler is an instrument that automates sample injection, widely used in chemical analysis, drug development, environmental monitoring, and food testing. It precisely controls the injection volume, time, and sequence according to a preset program, replacing manual operation and effectively improving analytical efficiency and data repeatability while reducing human error. It is particularly suitable for scenarios requiring the processing of large numbers of samples or demanding high injection accuracy. Before sample analysis, oscillation ensures thorough and uniform mixing of the sample components, preventing uneven concentrations due to precipitation or stratification. This ensures the representativeness of the sample and the accuracy of the analytical results. Therefore, integrating oscillation functionality is crucial in the design of an autosampler.

[0003] Currently, some autosamplers with oscillation functions have an oscillation structure placed below the sample-carrying structure of the injection unit to oscillate the sample before analysis. However, if other injection units are used, such as autosamplers without built-in oscillation devices, the internal space may be limited, making it impossible to install an oscillation device at the bottom of the injection tray. At the same time, placing the oscillation structure below the sample-carrying structure of the injection unit is also inconvenient for installation and maintenance. Sample leakage can also easily damage the oscillation device located below the sample-carrying structure.

[0004] Therefore, there is an urgent need for an autosampler with oscillation function, which can solve the problems of high risk of damage to the oscillation device and difficulty in installation and maintenance of existing autosamplers with oscillation function, and the inability to install an online oscillation device on autosamplers without oscillation function. Utility Model Content

[0005] The purpose of this invention is to provide an autosampler with oscillation function, which can solve the problems of high risk of damage to the oscillation device and difficulty in installation and maintenance of existing autosamplers with oscillation function, and the inability to add an online oscillation device to autosamplers without oscillation function. It supports splitting and adapting to other injection units to achieve the same online oscillation function as the built-in integrated oscillation device.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] An autosampler with oscillation function includes:

[0008] The sample injection unit includes an injection component and a carrier component. The carrier component includes a carrier platform and a sample tray. The sample tray is disposed on the carrier platform, and the injection component is disposed on one side of the carrier platform. The injection component is used to transfer the sample from the sample tray to the outside for testing.

[0009] An oscillation unit is disposed on the side of the support platform away from the sample introduction component. The oscillation unit includes a clamping component and an oscillation drive connected to each other. The clamping component is used to clamp the sample tray, and the oscillation unit is capable of oscillating the sample tray.

[0010] As an alternative to this autosampler with oscillation function, the clamping assembly includes:

[0011] A first base is disposed on the side of the support platform away from the sample introduction component;

[0012] A transducer is inserted into the first base and is connected to the oscillation drive.

[0013] Two opposing grippers are positioned above the support platform. One end of each gripper along its extension direction is connected to the first base. At least one of the grippers is slidably connected to the first base. The two grippers can approach and separate from each other.

[0014] As an alternative to the autosampler with oscillation function, the clamping assembly also includes an anti-slip pad, which is provided on the inner side of the gripper along its extension direction.

[0015] As an alternative to this autosampler with oscillation function, the clamping assembly also includes:

[0016] A first slide rail extends in a left-right direction and is mounted on the first base;

[0017] The first slider is slidably connected to the first slide rail and is connected to the gripper.

[0018] As an optional solution for this autosampler with oscillation function, the oscillation unit also includes a clamping drive assembly, which includes:

[0019] The first auxiliary part extends from the first base toward the direction of the sample injection component, and the first auxiliary part extends in the same direction as the gripper.

[0020] The first screw is inserted into the first auxiliary part and is connected to the gripper. The screwing in and out of the first screw is used to drive the gripper to slide inward or outward.

[0021] As an alternative to the autosampler with oscillation function, the oscillation drive is an ultrasonic generator, which is located on the side of the clamping assembly away from the injection assembly.

[0022] As an optional solution for this autosampler with oscillation function, the injection components include:

[0023] A fixed sidewall is provided on the front side of the support platform and is connected to the support platform.

[0024] A movable component, the fixed end of which is connected to the fixed sidewall;

[0025] The sample feeder has an output end connected to the moving part. The moving part is used to drive the sample feeder to move and to transfer the sample from the sample tray to the outside for testing.

[0026] As an alternative to this autosampler with oscillation function, the moving part includes:

[0027] The left and right moving part has a sliding groove extending in the left and right direction on the fixed side wall. The left and right moving part is accommodated in the sliding groove and is used to slide along the extending direction of the sliding groove.

[0028] The front-to-back moving part extends in the front-to-back direction, the front-to-back moving part is disposed on the left-to-right moving part, and the front-to-back moving part moves in the extending direction of the left-to-right moving part;

[0029] The vertically moving part extends in the vertical direction and is fitted onto the front-back moving part. The vertically moving part moves relative to the front-back moving part in the direction of its extension. The sample feeder is connected to the vertically moving part.

[0030] As an alternative to the autosampler with oscillation function, the top of the sample tray is bent outward to form an abutment portion, which is located above the clamping assembly and can abut against the clamping assembly.

[0031] A sample testing device includes a sample testing device body and an autosampler with oscillation function. The autosampler with oscillation function is disposed in the sample testing device body, and the sample testing device body is used to test the sample contained in the sample tray.

[0032] The beneficial effects of this utility model are as follows:

[0033] This invention proposes an autosampler with oscillation function. The injection unit includes an injection component and a carrier component. The carrier component includes a carrier platform and a sample tray, with the sample tray disposed on the carrier platform. The injection component is disposed on one side of the carrier platform and is used to transfer the sample into the sample tray. The oscillation unit is disposed on the side of the carrier platform away from the injection component. The oscillation unit includes a clamping component and an oscillation drive connected to each other. The clamping component is used to clamp the sample tray, and the oscillation unit can oscillate the sample tray. This autosampler with oscillation function, by independently disposing of the oscillation unit on the side of the carrier platform away from the injection component and adopting a structure in which the clamping component is connected to the oscillation drive, can reduce the risk of damage to the oscillation device caused by close connection with other components through independent design. It is easy to install and maintain independently. The oscillation unit is detachable and can be adapted to other injection units. It can solve the problem that autosamplers without oscillation function cannot be equipped with online oscillation devices. At the same time, it can achieve the same online oscillation function as a built-in integrated oscillation device, taking into account the safety of use, the convenience of maintenance, and the functional expandability. Attached Figure Description

[0034] Figure 1 This is a first structural schematic diagram of the autosampler with oscillation function provided in this embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of the second structure of the autosampler with oscillation function provided in this embodiment of the present invention.

[0036] In the picture:

[0037] 1. Sample injection unit; 11. Sample injection assembly; 111. Fixed sidewall; 112. Moving component; 12. Support assembly; 121. Support platform; 122. Sample tray;

[0038] 2. Oscillation unit; 21. Clamping assembly; 211. First base; 2111. L-shaped support plate; 2112. Auxiliary support; 2113. Second support plate; 2114. Second support; 2115. Reinforcing rib; 212. Transducer; 213. Gripper; 214. First slide rail; 215. First slider; 22. Oscillation drive; 23. Clamping drive assembly; 231. First auxiliary part; 232. First screw; 233. Handle;

[0039] 3. Second base; 31. First bearing plate; 32. First support member. Detailed Implementation

[0040] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] This embodiment provides an autosampler with oscillation function, such as Figure 1As shown, in this embodiment, the autosampler with oscillation function includes an injection unit 1 and an oscillation unit 2. The injection unit 1 includes an injection component 11 and a carrier component 12. The carrier component 12 includes a carrier platform 121 and a sample tray 122. The sample tray 122 is disposed on the carrier platform 121. The injection component 11 is disposed on one side of the carrier platform 121 and is used to transfer the sample from inside the sample tray 122 to the outside for testing. The oscillation unit 2 is disposed on the side of the carrier platform 121 away from the injection component 11. The oscillation unit 2 includes a clamping component 21 and an oscillation drive component 22 connected to each other. The clamping component 21 is used to clamp the sample tray 122. The oscillation unit 2 can oscillate the sample tray 122. The oscillation unit 2 is independently disposed on the side of the carrier platform 121 away from the injection component 11. The connection between component 21 and sample tray 122 avoids close contact between the oscillation device and other components at the bottom of the sample injection unit 1. This concentrates the force generated by the oscillation into the independent oscillation unit 2, reducing the impact on the complex components at the bottom of the sample injection unit 1. The detachable design of the independent unit eliminates the need to delve into the complex space at the bottom of the sample injection unit 1 during installation. During maintenance, the oscillation unit 2 can be directly separated for operation. Structurally, this solves the problems of high damage risk and difficult installation and maintenance caused by the close connection between traditional built-in oscillation devices and other components. At the same time, the oscillation device is isolated from the area below the sample tray 122, preventing liquid from dripping or seeping directly onto the oscillation device when the sample leaks. This spatial structure cuts off the path of contact between the leaked sample and the oscillation device, effectively preventing damage such as corrosion or short circuits caused by leaked samples to the oscillation unit 2. By independently setting up the oscillation unit 2 and using the clamping assembly 21 to fix the sample tray 122, the oscillation process can be made more stable, reducing the damage to the device caused by additional stress generated by oscillation. The independent oscillation unit 2 facilitates targeted vibration reduction design, reducing the impact of vibration on itself and other components, thereby reducing the risk of damage to the oscillation unit 2, extending the service life of the autosampler with oscillation function, and reducing maintenance costs and downtime. The oscillation unit 2 can be separated from the sample injection unit 1, a design that allows it to be adapted to the needs of different sample injection units 1. Since the oscillation principle and clamping method of the oscillation unit 2 have a certain degree of versatility, it can be adapted and applied to other sample injection units 1 to achieve the same online oscillation function as the built-in integrated oscillation device. This not only expands the applicability of the oscillation unit 2 and improves the compatibility of the autosampler with oscillation function, but also enables efficient online oscillation without replacing the main body of the sample injection unit 1.

[0046] Preferably, such as Figure 1As shown, in this embodiment, the autosampler with oscillation function also includes a second base 3. The second base 3 includes a first support plate 31 and a first support member 32. The injection unit 1 and the oscillation unit 2 are both disposed on the first support plate 31. The injection unit 1 and the oscillation unit 2 are integrated on the first support plate 31. The first support member 32 provides support to the base from below, which can provide a stable mounting foundation for the injection unit 1 and the oscillation unit 2, and avoid the injection assembly 11 and the oscillation unit 2 from being affected by the unstable mounting plane. The first support member 32 is disposed below the second base 3, which can enhance the structural stability of the device and avoid the impact of shaking caused by insufficient support on the injection accuracy and oscillation effect.

[0047] Preferably, in this embodiment, the first support member 32 and the first bearing plate 31 are threadedly connected, enabling fine-tuning of the height and level of the first bearing plate 31 within a small range. The first support member 32 and the first bearing plate 31 can flexibly adjust the horizontal state of the equipment according to the actual flatness of the mounting surface, ensuring that the operating accuracy of the sample injection unit 1 and the oscillation unit 2 is not affected by the tilt of the platform. Through the fine-tuning function of the threaded connection, the overall height consistency of the equipment can also be accurately calibrated, adapting to the installation requirements of different working environments. During long-term use of the equipment, it can correct minor offsets caused by component wear or foundation changes in real time, maintaining the stable operation of the equipment and improving its adaptability to different installation scenarios and long-term reliability. In other embodiments, the first support member 32 and the first bearing plate 31 can also be connected by plug-in or magnetic connection, etc.

[0048] Optionally, such as Figure 1 As shown, the first support plate 31 has a rectangular structure, and four first support members 32 are provided. These four first support members 32 are distributed at the four vertices of the first support plate 31, creating a stable and balanced mounting plane for the sample injection unit 1 and the oscillation unit 2. This ensures that the overall structure of the equipment will not shake due to uneven force during operation, achieving efficient sample injection and oscillation operations. The first support members 32 at the four vertices form a stable four-corner support system, enhancing the equipment's anti-tipping ability and effectively distributing the load generated during operation. This not only reduces the risk of equipment failure due to structural instability but also extends the service life of the autosampler. In other embodiments, the first support plate 31 can also be an elliptical or trapezoidal structure, as long as it provides placement space for the sample injection unit 1 and the oscillation unit 2. In other embodiments, there can also be two, three, or five first support members 32, as long as they provide stable support for the sample injection unit 1 and the oscillation unit 2.

[0049] Preferably, such as Figure 1As shown, in this embodiment, the second base 3 also includes a first shock absorber. The first shock absorber is disposed below the first support 32 and can effectively absorb the vibration generated by the injection unit 1 and the oscillation unit 2 during the operation of the autosampler, thereby achieving vibration buffering and isolation during equipment operation. Through the buffering effect of the first shock absorber, the transmission of equipment operation vibration to the ground or other mounting surfaces is reduced, thereby reducing the impact of vibration on the surrounding environment and other equipment.

[0050] Optionally, the first shock absorber is made of silicone material, which fully utilizes the high elasticity and flexibility of silicone to effectively absorb and buffer various vibrations during the operation of the autosampler. Silicone's excellent elastic deformation capability can adapt to vibrations of different frequencies and intensities, ensuring stable shock absorption. Silicone is chemically stable, resistant to aging and corrosion, and can maintain its performance over a long period in various complex environments, extending the service life of the shock absorber and reducing replacement frequency. The silicone material also provides an anti-slip function, preventing displacement of the equipment due to vibration or external forces during operation, ensuring the autosampler remains in a fixed position, improving the safety and reliability of the equipment, and reducing readjustment operations caused by equipment relocation. In other embodiments, the first shock absorber may also be made of rubber or polyurethane material.

[0051] Specifically, such as Figures 1-2 As shown, in this embodiment, the clamping assembly 21 includes a first base 211, a transducer 212, and two opposing grippers 213. The first base 211 is disposed on the side of the support platform 121 away from the sample injection assembly 11. The transducer 212 is inserted into the first base 211 and connected to the oscillation drive 22. The two grippers 213 are disposed above the support platform 121, with one end of each gripper 213 connected to the first base 211 along its extending direction. At least one of the two grippers 213 is slidably connected to the first base 211. The two grippers 213 can approach and separate from each other, thereby achieving clamping of the sample tray 122. The gripper 213 provides stable clamping and release, enabling stable clamping of the sample tray 122. Under the action of the oscillation drive 22, the sample tray 122 is driven to achieve oscillation. The sliding gripper 213 is designed to adapt to sample trays 122 of different sizes, ensuring the reliability of clamping. At the same time, the clamping component 21 and the oscillation drive 22 are integrated on one side of the support platform 121, avoiding the occupation of space in the sample injection unit 1. This makes the oscillation unit 2 and the sample injection unit 1 more independent in spatial layout, which not only improves the adaptability to different sample trays 122, but also facilitates the installation and maintenance of the equipment, ensuring the stability of the oscillation function and the convenience of equipment maintenance.

[0052] Preferably, such as Figures 1-2As shown, in this embodiment, the first base 211 includes an L-shaped support plate 2111, an auxiliary support member 2112, a second support plate 2113, and a second support member 2114. The second support member 2114 is disposed below the second support plate 2113 and on the first support plate 31. The second support plate 2113 is parallel to the first support plate 31. The L-shaped support plate 2111 includes a first side and a second side that are perpendicular to each other. The first side is parallel to the second support plate 2113. The auxiliary support member 2112 is disposed between the first side and the second support plate 2113. Both grippers 213 are disposed on the second side, forming a stable three-dimensional support structure to ensure the grippers 213 are securely mounted. The clamping and positioning mechanism allows the gripper 213 to accurately hold the sample tray 122 and stabilize it under the action of the oscillation drive component 22. The rigid connection between the layered parallel structure and the L-shaped support plate 2111 enhances the structural strength and stability of the clamping component 21, preventing structural shaking from affecting the clamping accuracy during oscillation. At the same time, the clamping 213 is arranged on one side of the L-shape, which makes efficient use of space and facilitates the clamping operation of the gripper 213 on the sample tray 122. The auxiliary support component 2112 further improves the deformation resistance of the structure, ensuring the reliability and stability of the oscillation function. The first base 211 also makes the clamping component 21 and the sample injection unit 1 more spatially independent, reducing mutual interference and facilitating the installation and maintenance of the equipment.

[0053] Preferably, such as Figures 1-2 As shown, in this embodiment, the first base 211 further includes a first reinforcing rib 2115. The first reinforcing rib 2115 is disposed at the corner of the L-shaped support plate 2111. The reinforcing rib 2115 is a right-angled triangular sheet structure. The two perpendicular sides of the reinforcing rib 2115 are connected to the first side and the second side respectively, supporting the L-shaped support plate 2111. Two reinforcing ribs 2115 are provided, respectively disposed at both ends of the L-shaped support plate 2111 in the left-right direction, forming a rigid support for the L-shaped support plate 2111, effectively enhancing the structural strength and deformation resistance of the first base 211, preventing the L-shaped support plate 2111 from deforming due to force during oscillation, and ensuring the stability and accuracy of the oscillation action when the gripper 213 clamps the sample disk 122. In other embodiments, one, three, or four reinforcing ribs 2115 may be provided.

[0054] Preferably, in this embodiment, the second support member 2114 and the second bearing plate 2113 are threadedly connected. The height and level of the second bearing plate 2113 can be finely adjusted within a small range to flexibly adjust the equipment's horizontal state according to the actual flatness of the mounting surface, ensuring that the operating accuracy of the clamping assembly 21 and the oscillation unit 2 is not affected by the tilt of the platform. In other embodiments, the second support member 2114 and the second bearing plate 2113 can also be connected by plug-in or magnetic connection, etc.

[0055] Optionally, such as Figures 1-2 As shown, the second support plate 2113 has a rectangular structure, and four second support members 2114 are provided. These four second support members 2114 are distributed at the four vertices of the second support plate 2113, creating a stable and balanced mounting plane for the clamping assembly 21 and the oscillation unit 2. This ensures that the overall structure of the equipment does not shake due to uneven force during operation, achieving efficient oscillation operation. The four-corner support system enhances the equipment's anti-overturning capability, effectively distributes the load during operation, and reduces the risk of failure due to structural instability. In other embodiments, the second support plate 2113 can also be an elliptical or trapezoidal structure, etc. In other embodiments, there can be two, three, or five second support members 2114, as long as they can provide stable support for the gripper 213.

[0056] Preferably, such as Figures 1-2 As shown, in this embodiment, the first base 211 also includes a second shock absorber. The second shock absorber is disposed below the second support 2114 and can effectively absorb the vibration generated by the oscillation unit 2 during the operation of the autosampler, thereby achieving vibration buffering and isolation during equipment operation. Through the buffering effect of the second shock absorber, the transmission of equipment operation vibration to the ground or other mounting surfaces is reduced, thereby reducing the impact of vibration on the surrounding environment and other equipment.

[0057] Optionally, in this embodiment, the second shock absorber is made of silicone material, which can fully utilize the high elasticity and flexibility of silicone to effectively absorb and buffer various vibrations during the operation of the oscillation unit 2. Silicone's excellent elastic deformation capability can adapt to vibrations of different frequencies and intensities, ensuring stable shock absorption. Silicone is chemically stable, resistant to aging and corrosion, and can maintain its performance for a long time in various complex environments, extending the service life of the shock absorber and reducing replacement frequency. The silicone material also provides an anti-slip function, preventing displacement of the clamping assembly 21 due to vibration or external forces during operation, ensuring the gripper 213 remains in a fixed position, and improving the safety and reliability of the equipment during operation. In other embodiments, the second shock absorber can also be made of rubber or polyurethane material.

[0058] Preferably, in this embodiment, the clamping component 21 further includes an anti-slip pad. An anti-slip pad is provided on the inner side of the first gripper 213 along its extending direction. By increasing the friction between the gripper 213 and the sample tray 122, the sample tray 122 is stably clamped, preventing the sample tray 122 from slipping during the oscillation process, which would affect the oscillation effect or cause the sample to spill. The anti-slip pad ensures the reliability of the clamping while being adaptable to sample trays 122 of different materials or surface conditions, thus improving the applicability of the clamping component 21 to the sample tray 122.

[0059] Optionally, in this embodiment, the anti-slip pad is made of silicone material. Silicone has good elasticity and flexibility, allowing it to closely conform to the surface of the sample tray 122, effectively enhancing friction and achieving a stable clamping of the sample tray 122. Silicone material is wear-resistant and corrosion-resistant, allowing for long-term use without damage, extending the service life of the anti-slip pad, reducing maintenance costs, and is non-toxic and odorless, preventing sample contamination. It also has good cushioning properties, protecting the sample tray 122 from damage during clamping, ensuring the safety and reliability of the equipment operation. In other embodiments, the anti-slip pad may also be made of rubber or polyurethane materials, etc.

[0060] Preferably, such as Figures 1-2 As shown, in this embodiment, the clamping assembly 21 further includes a first slide rail 214 and a first slider 215. The first slide rail 214 extends in the left-right direction and is disposed on the first base 211. The first slider 215 is slidably connected to the first slide rail 214 and is connected to the gripper 213, allowing the gripper 213 to slide left and right along the slide rail direction. This enables adaptive adjustment to sample trays 122 of different sizes. It can both adjust the spacing of the gripper 213 to stably clamp sample trays 122 of different specifications, improving the adaptability to the size of the sample tray 122, and ensure the smoothness of the gripper 213's sliding and the reliability of the clamping by utilizing the sliding cooperation structure of the slide rail and the slider. Optionally, in this embodiment, one first slide rail 214 and one first slider 215 are provided, and the first slide rail 214 is disposed at the left end of the first base 211. In some other embodiments, one first slide rail 214 and one first slider 215 are each provided, and the first slide rail 214 may also be provided at the right end of the first base 211. In other embodiments, two first slide rails 214 and two first sliders 215 may be provided, with the two first guide rails respectively provided at the left and right ends of the first base 211.

[0061] Preferably, such as Figures 1-2As shown, in this embodiment, the oscillation unit 2 further includes a clamping drive assembly 23. The clamping drive assembly 23 includes a first auxiliary part 231 and a first screw 232. The first base 211 extends the first auxiliary part 231 in the direction of the sample feeding assembly 11. The first auxiliary part 231 extends in the same direction as the gripper 213. The first screw 232 passes through the first auxiliary part 231 and is connected to the gripper 213. The screwing in and out of the first screw 232 is used to drive the gripper 213 to slide inward or outward. Through the cooperation of the first auxiliary part 231 and the first screw 232, the precise sliding of the gripper 213 is achieved. The control mechanism allows the first screw 232 to rotate in and out of the first auxiliary part 231, driving the gripper 213 to slide inward or outward, thereby clamping and releasing the sample tray 122. Through a simple screw drive structure, the position of the gripper 213 can be precisely adjusted to fit sample trays 122 of different sizes, ensuring clamping stability and reliability. Furthermore, the mechanical transmission method improves operational convenience and structural durability. This compact design does not occupy excessive space, facilitating the independence of the oscillation unit 2 and the sample introduction unit 1 in spatial layout, further enhancing the adaptability and maintenance convenience of the autosampler. In other embodiments, the clamping drive component 23 can also be a cylinder or electric cylinder, as long as it can drive the gripper 213 to slide along the extension direction of the first slide rail 214.

[0062] Preferably, such as Figures 1-2 As shown, in this embodiment, the clamping drive assembly 23 also includes a handle 233, which is disposed on the first screw 232. The handle 233 is used to assist in driving the first screw 232 to rotate. By manually operating the handle 233, the first screw 232 can be easily driven to rotate, thereby driving the gripper 213 to slide and complete the clamping and releasing operation of the sample tray 122. The handle 233 provides an intuitive and easy-to-operate manual control method without the need for additional tools. The operator can quickly adjust the position of the gripper 213 according to actual needs.

[0063] Preferably, such as Figures 1-2 As shown, in this embodiment, the oscillation drive 22 is an ultrasonic generator. The ultrasonic generator is located on the side of the clamping assembly 21 away from the sample injection assembly 11. The ultrasonic generator achieves efficient oscillation of the sample tray 122 through high-frequency ultrasonic vibration, which promotes rapid and uniform mixing of the sample. The high-frequency characteristics of ultrasonic waves can improve the oscillation efficiency. The fact that the ultrasonic generator is located on the side of the clamping assembly 21 away from the sample injection assembly 11 can avoid spatial interference between the ultrasonic generator and the sample injection assembly 11, ensuring that the sample injection operation and the oscillation process are carried out independently. The layout of the ultrasonic generator away from the sample injection assembly 11 can reduce the impact of oscillation on the sample injection accuracy, and also facilitates the installation and maintenance of the ultrasonic generator, further optimizing the space utilization and ease of use of the autosampler.

[0064] Specifically, such as Figure 1 As shown, in this embodiment, the sample injection assembly 11 includes a fixed sidewall 111, a movable component 112, and a sample injection component. The fixed sidewall 111 is disposed on the front side of the support platform 121 and connected to the support platform 121. The fixed end of the movable component 112 is connected to the fixed sidewall 111, and the output end of the movable component 112 is connected to the sample injection component. The movable component 112 is used to drive the sample injection component to move. The sample injection component is used to transfer the sample from inside the sample tray 122 to the outside for testing, so that the sample injection component is accurately positioned to the designated position of the sample tray 122 under the drive of the movable component 112 to perform the sample injection operation, ensuring the accuracy and stability of the sample injection. At the same time, the fixed sidewall 111 provides a reliable installation foundation for the movable component 112 and the sample injection component, making the structure of the sample injection assembly 11 more stable.

[0065] Preferably, in this embodiment, the moving component 112 includes a moving control unit, a left-right moving component, a front-back moving component, and a up-down moving component. A sliding groove extending in the left-right direction is provided on the fixed sidewall 111. The left-right moving component is accommodated within the sliding groove and can slide along the extension direction of the sliding groove. The left-right moving component extends in the front-back direction, and the front-back moving component is disposed on the left-right moving component and moves along the extension direction of the left-right moving component. The up-down moving component extends in the up-down direction and is sleeved on the front-back moving component. The up-down moving component moves relative to the front-back moving component along its own extension direction. The sample injector is connected to the up-down moving component. The moving control unit is electrically connected to the left-right moving component, the front-back moving component, and the up-down moving component, respectively, enabling flexible movement of the sample injector in three-dimensional space. This allows the sample injector to accurately reach any position on the sample tray 122 for sample injection, greatly improving the accuracy and coverage of the injection. The modular moving structure facilitates installation and disassembly, reducing maintenance difficulty. In other embodiments, the moving component 112 can also be a robotic arm or similar structure.

[0066] It should be noted that the movement control unit is an existing structure, and setting up a movement control unit in an autosampler is a conventional setup in the field. In this embodiment, any communication harness in the prior art can be used to connect to the left and right moving parts, the front and back moving parts, and the up and down moving parts using any connection method in the prior art, as long as the movement of the sample injector is controlled. No further details will be provided.

[0067] It should be noted that the left and right moving parts extend in the front and back directions, and the front and back moving parts are existing structures. Setting up an autosampler to drive the sampler to move in all directions is a conventional setting in the field. In this embodiment, any communication harness in the prior art can be used, and any connection method in the prior art can be used to connect to the sampler and other structures, as long as the control of the sampler to move to the designated position is achieved, which will not be described in detail.

[0068] Preferably, such as Figure 1 As shown, in this embodiment, the top of the sample tray 122 is bent outward to form an abutment portion. The abutment portion is located above the gripper 213 and can abut against the gripper 213. When the gripper 213 holds the sample tray 122, the abutment portion abuts against the gripper 213 to form a limiting structure, which can prevent the sample tray 122 from being dislodged from the gripper 213 due to force during oscillation, ensuring the stability of the gripping and avoiding sample spillage or impact on the oscillation effect.

[0069] Preferably, in this embodiment, the sample tray 122 includes a housing and a carrier tube. Multiple carrier tubes are arranged in a matrix and housed in the housing. The sample injector can inject the sample into the designated carrier tube respectively. The matrix arrangement facilitates the sample injector to quickly locate the target carrier tube, improving the injection efficiency and accuracy. The carrier tubes are housed in the housing, which enhances the overall structural stability of the sample tray 122, reduces the risk of carrier tube shaking and displacement during oscillation, and ensures sample safety.

[0070] Preferably, in this embodiment, the autosampler with oscillation function also includes a handle. The handle is disposed on the second base 3 at both ends of the second base 3 in the front-back direction, which can provide a gripping point for moving the device and facilitate the operator to move or move the device.

[0071] This embodiment also provides a sample testing device, which includes a sample testing device body and an automatic sampler with oscillation function. The automatic sampler with oscillation function is disposed in the sample testing device body. The sample testing device body is used to test the sample contained in the sample tray 122, realizing the automatic completion of the entire process of sample transfer, oscillation mixing and testing.

[0072] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An autosampler with oscillation function, characterized in that, include: The sample injection unit (1) includes an injection component (11) and a carrier component (12). The carrier component (12) includes a carrier platform (121) and a sample tray (122). The sample tray (122) is disposed on the carrier platform (121). The injection component (11) is disposed on one side of the carrier platform (121). The injection component (11) is used to transfer the sample from the sample tray (122) to the outside for testing. An oscillation unit (2) is disposed on the side of the support platform (121) away from the sample injection component (11). The oscillation unit (2) includes a clamping component (21) and an oscillation drive component (22) connected to each other. The clamping component (21) is used to clamp the sample tray (122). The oscillation unit (2) is capable of oscillating the sample tray (122).

2. The autosampler with oscillation function according to claim 1, characterized in that, The clamping assembly (21) includes: A first base (211) is disposed on the side of the support platform (121) away from the sample injection assembly (11); A transducer (212) is inserted into the first base (211) and is connected to the oscillation drive (22); Two grippers (213) are arranged opposite each other and are positioned above the support platform (121). One end of each gripper (213) along its extension direction is connected to the first base (211). At least one of the grippers (213) is slidably connected to the first base (211). The two grippers (213) can approach and separate from each other.

3. The autosampler with oscillation function according to claim 2, characterized in that, The clamping assembly (21) also includes an anti-slip pad, which is provided on the inner side of the gripper (213) along its extending direction.

4. The autosampler with oscillation function according to claim 2, characterized in that, The clamping assembly (21) further includes: The first slide rail (214) extends in the left and right direction and is mounted on the first base (211); The first slider (215) is slidably connected to the first slide rail (214) and is connected to the gripper (213).

5. The autosampler with oscillation function according to claim 2, characterized in that, The oscillation unit (2) further includes a clamping drive assembly (23), which includes: The first auxiliary part (231) extends from the first base (211) toward the direction of the sample injection assembly (11), and the extension direction of the first auxiliary part (231) is the same as the extension direction of the gripper (213). The first screw (232) is inserted into the first auxiliary part (231). The first screw (232) is connected to the gripper (213). The screw (232) is screwed in and out to drive the gripper (213) to slide inward or outward.

6. The autosampler with oscillation function according to any one of claims 1-5, characterized in that, The oscillation drive (22) is an ultrasonic generator, which is located on the side of the clamping assembly (21) away from the sample injection assembly (11).

7. The autosampler with oscillation function according to any one of claims 1-5, characterized in that, The injection assembly (11) includes: A fixed sidewall (111) is provided on the front side of the bearing platform (121) and connected to the bearing platform (121); A movable component (112), the fixed end of which is connected to the fixed sidewall (111); The sample injector is connected to the output end of the moving part (112). The moving part (112) is used to drive the sample injector to move. The sample injector is used to transfer the sample from the sample tray (122) to the outside for testing.

8. The autosampler with oscillation function according to claim 7, characterized in that, The movable element (112) includes: The left and right moving part is provided with a sliding groove extending in the left and right direction on the fixed side wall (111). The left and right moving part is accommodated in the sliding groove and can slide along the extending direction of the sliding groove. The front-to-back moving part extends in the front-to-back direction, the front-to-back moving part is disposed on the left-to-right moving part, and the front-to-back moving part moves in the extending direction of the left-to-right moving part; The upper and lower moving part extends in the upper and lower direction and is sleeved on the front and rear moving part. The upper and lower moving part moves relative to the front and rear moving part in the extension direction of the upper and lower moving part, and the sample injector is connected to the upper and lower moving part.

9. The autosampler with oscillation function according to any one of claims 1-5, characterized in that, The top of the sample tray (122) is bent outward to form an abutment portion, which is disposed above the clamping assembly (21) and can abut against the clamping assembly (21).

10. A sample testing device, characterized by, The device includes a sample detection equipment body and an autosampler with oscillation function as described in any one of claims 1-9, wherein the autosampler with oscillation function is disposed in the sample detection equipment body, and the sample detection equipment body is used to detect the sample contained in the sample tray (122).

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