Mass spectrometer sampling device with good sealing performance

Abstract

The utility model discloses a mass spectrometer sampling device with good sealing performance, which mainly comprises a first bearing plate, and a first linear sliding table is arranged on the first bearing plate. The first linear sliding table is designed to be longitudinally placed, and a second bearing plate is further mounted on a sliding plate of the first linear sliding table; a second linear sliding table and a linear sliding rail are arranged on the second bearing plate. The second linear sliding table is designed to be placed transversely, and the linear sliding rail is arranged below the second linear sliding table and is parallel to the second linear sliding table. And by using a plurality of sliding blocks and spiral springs, good contact between the sliding blocks and the linear sliding rails can be ensured, so that the sealing performance of the whole device is improved, and the influence of the external environment on the interior of the mass spectrometer is reduced. Due to the parallel arrangement of the second linear sliding table and the linear sliding rail and the use of the guide rod, the accurate positioning of the sliding block in the moving process can be ensured, and the stability and repeatability of the sampling device are improved.

Description

Technical Field

[0001] This utility model relates to the field of analytical instrument technology, specifically to a mass spectrometer sample introduction device with good sealing performance. Background Technology

[0002] In the fields of modern analytical chemistry and biotechnology, mass spectrometry is a crucial analytical instrument capable of qualitative and quantitative analysis of samples. The sample introduction device is a key component of the mass spectrometer, responsible for delivering the sample to be analyzed into the ion source.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] Existing mass spectrometer sample introduction devices typically employ simple mechanical structures, such as a combination of sliders and rails, to move and position the sample. However, these devices often suffer from poor sealing, allowing gases and particulate matter from the external environment to enter the mass spectrometer and affect the accuracy of the analytical results. Utility Model Content

[0005] The purpose of this invention is to provide a mass spectrometer sample introduction device with good sealing performance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mass spectrometer sample introduction device with good sealing performance, which mainly consists of a first support plate, on which a first linear slide is disposed. The first linear slide is designed to be placed longitudinally, and a second support plate is further installed on its sliding plate;

[0007] On the second support plate, we have installed a second linear slide and a linear guide rail. The second linear slide is designed to be placed horizontally, while the linear guide rail is located below the second linear slide and parallel to it. The drive end of the second linear slide is also equipped with a connecting plate, and a limit pin is provided on the inner side of the connecting plate;

[0008] On the second linear slide, we installed five sliders. Helical springs are evenly spaced between these five sliders to maintain their spacing and provide necessary elastic force. Each slider is equipped with an L-shaped fixing plate, and the L-shaped fixing plate is fitted with a test tube adsorption head. A pressure regulating device is connected to the top of the test tube adsorption head for precise control of the adsorption and release of the test tube.

[0009] In addition, a hoisting platform is connected to the top of the first support plate, which makes the entire device easy to hoist and move so that it can be installed on the mass spectrometer.

[0010] More specifically, the first linear slide can be a pneumatic linear slide or an electrically driven linear slide, depending on the requirements of the actual application.

[0011] The second support plate is designed as an inverted T-shaped support plate, with a linear slide rail specially set on the side wall of its long horizontal side to ensure that the horizontal movement of the slider can be carried out smoothly.

[0012] Similarly, the second linear slide can also be a pneumatic linear slide or an electrically driven linear slide to provide precise lateral movement.

[0013] Regarding the sliders, they are all arranged horizontally in the middle, and each slider has a through groove in the middle. Guide rods are inserted into the through grooves between adjacent sliders, and helical springs are sleeved on the outside of the guide rods to ensure that the sliders can maintain linear movement when moving laterally and to provide the necessary elastic force.

[0014] Compared with the prior art, the beneficial effects of this utility model are: improved sealing performance. By using multiple sliders and helical springs, good contact between the sliders and the linear guide rail can be ensured, thereby improving the sealing performance of the entire device and reducing the influence of the external environment on the inside of the mass spectrometer.

[0015] Precise positioning, the parallel arrangement of the second linear slide and linear rail, and the use of guide rods ensure accurate positioning of the slider during movement, improving the stability and repeatability of the injection device.

[0016] The flexible test tube adsorption, through the design of the L-shaped fixing plate and the test tube adsorption head, can flexibly adsorb and release test tubes, adapting to test tubes of different sizes and shapes, thus improving operational flexibility.

[0017] Air pressure regulation: The air pressure regulating device connected to the top of the test tube adsorption head can precisely control the adsorption force, ensuring the safety and stability of the test tube during transportation.

[0018] The system allows for easy hoisting and movement. The hoisting platform connected to the top of the first support plate can easily hoist the entire sample introduction device onto the mass spectrometer, facilitating installation and maintenance.

[0019] It has a high degree of automation. By using a pneumatic or electrically driven linear slide, the sample introduction device can be automated, improving work efficiency and reducing human error.

[0020] With its compact structure and inverted T-shaped support plate design, the structure is more compact and space-saving, making it suitable for installation inside a mass spectrometer with limited space. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the present invention;

[0022] Figure 2 This is a side view of the present invention.

[0023] In the diagram: 1. First support plate; 2. First linear slide; 3. Second support plate; 4. Second linear slide; 5. Linear slide rail; 6. Connecting plate; 7. Limiting pin; 8. Slider; 9. Helical spring; 10. L-shaped fixing plate; 11. Test tube adsorption head; 12. Lifting moving platform; 13. Guide rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-2 This utility model provides a technical solution: a mass spectrometer sample introduction device with good sealing performance, including a first support plate 1, a first linear slide 2 on the first support plate 1, the first linear slide 2 being arranged longitudinally, a second support plate 3 on the slide plate of the first linear slide 2; a second linear slide 4 and a linear slide rail 5 on the second support plate 3, the second linear slide 4 being arranged laterally, the linear slide rail 5 being located below the second linear slide 4 and parallel to it, a connecting plate 6 being provided at the driving end of the second linear slide 4, and a limiting pin 7 being provided on the inner side of the connecting plate 6; five sliders 8 on the second linear slide 4, each of the five sliders 8 being provided with a helical spring 9, an L-shaped fixing plate 10 on the slider 8, a test tube adsorption head 11 on the L-shaped fixing plate 10, and a gas pressure regulating device connected to the top of the test tube adsorption head 11; a hoisting moving stage 12 being connected to the top of the first support plate 1.

[0026] It mainly consists of a first support plate 1, on which a first linear slide 2 is mounted. The first linear slide 2 is designed to be placed longitudinally, and a second support plate 3 is further mounted on its sliding plate;

[0027] On the second support plate 3, we set a second linear slide 4 and a linear slide rail 5. The second linear slide 4 is designed to be placed horizontally, while the linear slide rail 5 is placed below the second linear slide 4 and parallel to it. The drive end of the second linear slide 4 is also equipped with a connecting plate 6, and a limiting pin 7 is set on the inner side of the connecting plate 6;

[0028] On the second linear slide 4, we installed five sliders 8. Helical springs 9 are evenly spaced between these five sliders 8 to maintain their spacing and provide necessary elastic force. Each slider 8 is equipped with an L-shaped fixing plate 10, and the L-shaped fixing plate 10 is fitted with a test tube adsorption head 11. The top of the test tube adsorption head 11 is connected to a pressure regulating device for precisely controlling the adsorption and release of the test tube.

[0029] In addition, the top of the first support plate 1 is connected to a hoisting platform 12, which makes the entire device easy to hoist and move so as to be installed on the mass spectrometer.

[0030] More specifically, the first linear slide 2 can be a pneumatic linear slide or an electrically driven linear slide, depending on the requirements of the actual application.

[0031] The second support plate 3 is designed as an inverted T-shaped support plate, and a linear slide rail 5 is specially set on the side wall of its long horizontal side to ensure that the horizontal movement of the slider 8 can be carried out smoothly.

[0032] Similarly, the second linear slide 4 can also be a pneumatic linear slide or an electrically driven linear slide to provide precise lateral movement.

[0033] Regarding the sliders 8, they are all arranged horizontally in the middle, and each slider 8 has a through groove in the middle. Guide rods 13 are inserted into the through grooves between adjacent sliders 8, and helical springs 9 are also sleeved on the outside of the guide rods 13 to ensure that the sliders 8 can maintain linear movement when moving laterally and to provide the necessary elastic force.

[0034] The working principle of this device is as follows: During operation, the first linear slide 2 is responsible for longitudinal movement. It is mounted on the first support plate 1 and can perform precise linear movement along the longitudinal direction.

[0035] The second linear slide 4 and the linear slide rail 5 are mounted on the second support plate 3. The second linear slide 4 is responsible for lateral movement, while the linear slide rail 5 provides a movement path parallel to the second linear slide 4 to ensure smooth lateral movement of the slider 8.

[0036] The connecting plate 6 is connected to the drive end of the second linear slide 4, and the limiting pin 7 is set on the inner side of the connecting plate 6 to limit the movement range of the slider 8 and prevent it from exceeding the predetermined movement trajectory.

[0037] There are five sliders 8, which are connected by helical springs 9 to maintain spacing and elasticity between them, ensuring smooth and cushioned movement.

[0038] Each slider 8 is equipped with an L-shaped fixing plate 10, on which a test tube adsorption head 11 is installed. The top of the test tube adsorption head 11 is connected to an air pressure regulating device for adsorbing and releasing test tubes, thereby achieving precise test tube operation.

[0039] The hoisting platform 12 is connected to the top of the first support plate 1, and can be hoisted and moved to install the entire device onto the mass spectrometer.

[0040] The first linear slide 2 and the second linear slide 4 can be pneumatically or electrically driven, providing power as needed to achieve precise linear motion.

[0041] The guide rod 13 is inserted into the through groove of the adjacent slider 8, and a helical spring 9 is sleeved on the outside. The guide rod 13 ensures that the slider 8 maintains linear motion when moving laterally, while the helical spring 9 provides the necessary elastic force to buffer the impact during the movement and ensure the stability and durability of the device.

[0042] With the above structure, the mass spectrometer sample introduction device can achieve precise control and positioning of the test tube, ensuring that the sample can be accurately delivered into the mass spectrometer for analysis.

[0043] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 invention based on the specific circumstances.

[0044] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mass spectrometer sample introduction device with good sealing performance, characterized in that: It includes a first support plate (1), a first linear slide (2) is provided on the first support plate (1), the first linear slide (2) is arranged in a longitudinal direction, and a second support plate (3) is provided on the slide plate of the first linear slide (2). The second support plate (3) is provided with a second linear slide (4) and a linear slide rail (5). The second linear slide (4) is arranged in a horizontal direction. The linear slide rail (5) is located on the lower side of the second linear slide (4) and is parallel to it. The driving end of the second linear slide (4) is provided with a connecting plate (6). The inner side of the connecting plate (6) is provided with a limiting pin (7). The second linear slide (4) is provided with sliders (8), the number of sliders (8) is 5, and a spiral spring (9) is provided between each of the 5 sliders (8). An L-shaped fixing plate (10) is provided on the slider (8), and a test tube adsorption head (11) is provided on the L-shaped fixing plate (10). The top of the test tube adsorption head (11) is connected to an air pressure regulating device. The top of the first bearing plate (1) is connected to a hoisting moving platform (12).

2. The mass spectrometer sample introduction device with good sealing performance according to claim 1, characterized in that: The first linear slide (2) is a pneumatic linear slide or an electrically driven linear slide.

3. The mass spectrometer sample introduction device with good sealing performance according to claim 1, characterized in that: The second bearing plate (3) is an inverted T-shaped bearing plate, and the linear slide rail (5) is provided on the side wall of its horizontal long side.

4. The mass spectrometer sample introduction device with good sealing performance according to claim 1, characterized in that: The second linear slide (4) is a pneumatic linear slide or an electrically driven linear slide.

5. The mass spectrometer sample introduction device with good sealing performance according to claim 1, characterized in that: Each of the five sliders (8) has a through groove arranged horizontally in the middle. A guide rod (13) is inserted into the through groove between each pair of adjacent sliders (8), and a helical spring (9) is sleeved on the outside of the guide rod (13).

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