A mass spectrometer for easy sample positioning

Abstract

This utility model relates to a mass spectrometer for easy sample positioning, including a mass spectrometer housing. A groove is formed at the bottom of the inner part of the mass spectrometer housing, and a base plate is installed on the top of the groove. Side housings are fixed to both sides of the top of the base plate, and a sample placement block is disposed between the two side housings. Multiple sample placement slots are provided on the top of the sample placement block, and positioning components are provided on the surface of the side housings. This utility model controls multiple telescopic cylinders to simultaneously drive a positioning disk to clamp the sample target plate in multiple directions, achieving effective simultaneous positioning of multiple samples and significantly improving sample positioning and fixation efficiency. The positioning disk has an annular cavity and a liquid inlet cavity inside, and a liquid pump circulates the coolant, which directly contacts and removes heat when pressed against the target plate, greatly improving the cooling effect and effectively ensuring the stability of sample detection.

Description

Technical Field

[0001] This utility model relates to the field of mass spectrometers, specifically a mass spectrometer that facilitates sample positioning. Background Technology

[0002] The basic principle of a mass spectrometer is to ionize the components in a sample in an ion source, generating ions with different charge-to-mass ratios. These ions are then accelerated by an electric field to form an ion beam, which enters the mass analyzer. In the mass analyzer, electric and magnetic fields are used to induce opposite velocity dispersion, focusing the ions to obtain a mass spectrum, thus determining their mass. Current mass spectrometers require sample positioning during the detection process.

[0003] According to publicly available patent CN210325689U, a glow discharge mass spectrometer and its sample positioning device are disclosed, relating to the field of mass spectrometry instrument technology. The sample positioning device includes: a positioning device body, which has a mounting cavity for mounting a test sample. A mounting groove is formed at the bottom of the mounting cavity, and a first through hole penetrating the positioning device body is provided at the bottom of the mounting groove. The mounting groove includes several mounting positions for mounting the sample, configured such that when the sample is fixed at different mounting positions, the first through hole corresponds to different areas of the sample. It also includes a positioning block for fixing the sample, which is installed in the mounting cavity to press the sample into the mounting groove. This invention allows for testing at multiple locations on the same sample, improving the accuracy of test data and saving material costs associated with manufacturing multiple samples.

[0004] In traditional mass spectrometer sample positioning, positioning blocks are primarily used. However, this method can only position a small number of samples at a time. Furthermore, after positioning the current small number of samples, to process other samples, the remaining samples must be manually moved one by one to their designated positions. This results in repeated sample movement operations throughout the entire testing process, consuming significant time and effort and reducing work efficiency. Moreover, while traditional positioning blocks possess thermal conductivity, their performance relies entirely on the thermally conductive material itself. Positioning blocks made from a single thermally conductive material have relatively low thermal conductivity, leading to discharge phenomena when the sample temperature is high, thus affecting testing accuracy. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide a mass spectrometer that facilitates sample positioning. This addresses the current problem in traditional mass spectrometers where sample positioning relies primarily on positioning blocks. However, this method can only position a small number of samples at a time. Furthermore, after positioning the current small number of samples, if other samples need to be processed, the remaining samples must be manually moved one by one to the positioning position. This results in repeated sample movement operations throughout the entire sample detection process, consuming significant time and effort and reducing work efficiency. Moreover, while traditional positioning blocks have thermal conductivity, their performance depends entirely on the thermally conductive material itself. Positioning blocks made from a single thermally conductive material have relatively low thermal conductivity, leading to discharge phenomena when the sample temperature is high, thus affecting the accuracy of the test.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a mass spectrometer for easy sample positioning is designed, including a mass spectrometer housing, a groove is provided at the bottom of the inside of the mass spectrometer housing, a base plate is installed on the top of the groove, side housings are fixed on both sides of the top of the base plate, a sample placement block is provided between the two side housings, a plurality of sample placement slots are provided on the top of the sample placement block, and a positioning component is provided on the surface of the side housing.

[0007] Preferably, the positioning component includes a telescopic cylinder, which is installed on the inner side of the side housing, and a positioning disc is fixed to one end of the telescopic cylinder via a piston rod.

[0008] Preferably, the positioning disk has an annular cavity inside, and liquid inlet chambers are provided at both ends of the annular cavity, with one end of a flexible tube connected inside the liquid inlet chamber.

[0009] Preferably, the other end of the hose is connected to a liquid pump, and the liquid pump is connected to a side housing away from the hose.

[0010] Preferably, a heat-conducting plate is fixed to the outer side of the side shell, and a plurality of heat dissipation fins are fixed to the end of the heat-conducting plate away from the side shell.

[0011] Preferably, a motor is installed in the middle of the bottom end of the base plate, and a sample placement block is fixed through the output shaft of the top of the motor through the base plate. Vibration motors are installed on both sides of the bottom of the base plate, and the motors and vibration motors are located in the grooves opened at the bottom of the mass spectrometer housing.

[0012] Preferably, the front end of the mass spectrometer housing is provided with a cover plate, and the cover plate is connected to the mass spectrometer housing by a hinge.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model combines a telescopic cylinder, a positioning plate, and a flexible hose. By controlling the synchronous movement of multiple telescopic cylinders, the positioning plate can be driven to press against the side of the sample target plate. This multi-directional clamping method effectively limits the simultaneous positioning of multiple samples, greatly improving the efficiency of sample positioning and fixation. Compared with the traditional single-sample positioning method, it enhances the overall processing capacity. Furthermore, the positioning plate is equipped with an annular cavity and a liquid inlet chamber. During actual operation, with the power generated by the liquid pump, coolant is introduced into the annular cavity and liquid inlet chamber through the connected flexible hose, forming a highly efficient circulation. When the positioning plate presses against the target plate, the coolant can directly contact the target plate, quickly removing the heat generated by the sample during detection. This direct contact cooling method greatly improves the cooling effect. This effectively ensures the stability of samples during the detection process and solves the problem of relying mainly on positioning blocks for sample positioning in traditional mass spectrometers. However, this positioning method can only position a small number of samples at a time. Moreover, after positioning the current small number of samples, if other samples need to be processed, the staff needs to manually move the remaining samples one by one to the positioning position. This results in the staff having to repeatedly move the samples during the entire sample detection process, which not only consumes a lot of time and energy but also reduces work efficiency. In addition, although traditional positioning blocks have thermal conductivity, their thermal conductivity depends entirely on the thermal conductive material itself. Positioning blocks made of a single thermal conductive material have relatively low thermal conductivity, which can cause discharge when the sample temperature is high, affecting the technical problem of testing accuracy.

[0015] 2. This utility model, through the combination of a base plate, a motor, and a vibration motor, not only allows the motor to drive the sample placement block to rotate, thereby moving the sample placed inside the block, and directly switching between different samples near the positioning plate, but also uses the positioning plate to directly limit the sample at different positions, eliminating the need for operators to repeatedly move the sample to the positioning position. Furthermore, the vibration motor installed at the bottom of the base plate can disperse agglomerated sample particles by applying vibration, making the sample distribution more uniform and avoiding analytical errors caused by excessively high or low local sample concentrations, thereby improving the accuracy and reliability of the analytical results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the base plate of this utility model;

[0018] Figure 3 This is a cross-sectional view of the positioning disc of this utility model.

[0019] In the diagram: 1. Mass spectrometer housing; 101. Hinge; 102. Cover plate; 2. Base plate; 201. Side housing; 202. Telescopic cylinder; 203. Positioning plate; 204. Liquid pump; 205. Hoses; 206. Sample placement block; 207. Sample placement slot; 208. Liquid inlet chamber; 209. Annular cavity; 210. Heat-conducting plate; 211. Heat dissipation fins; 3. Motor; 301. Vibration motor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: A mass spectrometer for easy sample positioning, see [link to example]. Figures 1 to 3 The system includes a mass spectrometer housing 1. A groove is formed at the bottom of the mass spectrometer housing 1, and a base plate 2 is installed on top of the groove. Side housings 201 are fixed to both sides of the top of the base plate 2. A sample placement block 206 is positioned between the two side housings 201. Multiple sample placement slots 207 are provided on the top of the sample placement block 206. Positioning components are provided on the surface of the side housings 201. First, sample placement is performed by placing multiple circular target plates containing samples one by one into the preset sample placement slots 207 on the sample placement block 206. A portion of the circular target plate extends out of the sample placement slot 207, ensuring that each sample is accurately positioned in its corresponding location, preparing for subsequent clamping and fixation. Next, multiple telescopic cylinders 202 are activated. Driven by the telescopic cylinders 202, a positioning disk 203 begins to move and gradually abuts against the sides of the multiple protruding target plates. Due to the multi-directional clamping method, the positioning disk 203 applies uniform clamping to the sample containing the target plates from different directions. This system effectively limits the simultaneous placement of multiple samples. During sample detection, one end of the liquid pump 204 is activated, pumping coolant through a connected hose 205 into the annular cavity 209 and the inlet cavity 208. The coolant circulates within the cavity. Subsequently, the other end of the liquid pump 204 is activated, pumping the circulated coolant back into the side housing 201 through the connected hose 205, creating a highly efficient circulation. When the positioning disk 203 presses against the sample containing the target plate, the coolant can directly contact the target plate, rapidly removing the heat generated by the individual sample during detection through heat conduction. This direct contact cooling method greatly improves the cooling effect and effectively reduces the risk of changes in the physical or chemical properties of the sample due to temperature variations, thus effectively ensuring the stability of the sample during detection and providing strong support for the mass spectrometer to obtain accurate and reliable detection results.

[0022] For details, see Figure 1 The positioning component includes a telescopic cylinder 202, which is installed on the inner side of the side housing 201. One end of the telescopic cylinder 202 is fixed with a positioning disc 203 via a piston rod.

[0023] Further, see Figure 3 The positioning disk 203 has an annular cavity 209 inside, and liquid inlet chambers 208 are opened at both ends inside the annular cavity 209. One end of the hose 205 is connected inside the liquid inlet chamber 208.

[0024] It is worth noting that, see Figure 1 The other end of the hose 205 is connected to a liquid pump 204, and the side housing 201 is connected to the side of the liquid pump 204 away from the hose 205.

[0025] It is worth noting that, see Figure 1 A heat-conducting plate 210 is fixed to the outer side of the side shell 201, and multiple heat dissipation fins 211 are fixed to the end of the heat-conducting plate 210 away from the side shell 201.

[0026] It is worth mentioning that, see Figure 2 A motor 3 is installed at the center of the bottom of the base plate 2. The output shaft of the motor 3 passes through the base plate 2 and fixes the sample placement block 206. Vibration motors 301 are installed on both sides of the bottom of the base plate 2. Both the motor 3 and the vibration motor 301 are located in the grooves opened at the bottom of the mass spectrometer housing 1. When it is necessary to switch to different samples for detection, the motor 3 is started, and the motor 3 drives the sample placement block 206 to rotate. As the sample placement block 206 rotates, the samples placed inside it also move to different positions. When the target sample moves to the designated position close to the positioning plate 203, the motor 3 stops rotating. At this time, the telescopic cylinder 202 drives the positioning plate 203 to move, directly limiting and fixing the target plate with the sample in that position for subsequent detection operations. This realizes automatic sample switching and positioning, eliminating the need for operators to repeatedly manually move the samples. Moving the sample to the designated position greatly saves time and labor costs, and improves the efficiency of sample processing. A vibration motor 301 is installed at the bottom of the base plate 2. When the sample agglomerates, or when it is necessary to ensure a more uniform sample distribution, the vibration motor 301 is activated. The vibration motor 301 generates vibrations of a specific frequency and intensity. The vibration is transmitted through the base plate 2 to the sample placement block 206, and then acts on the sample. Under the action of vibration, the agglomerated particles in the sample are impacted by external force and gradually disperse. The original situation of excessively high or low local sample concentration is effectively improved, and the sample is more evenly distributed throughout the placement area. When the sample is evenly distributed, each tiny sample unit has the opportunity to be accurately detected, avoiding analytical errors caused by uneven sample distribution, thereby improving the accuracy and reliability of the analytical results.

[0027] It is worth emphasizing that, see Figure 1 The mass spectrometer housing 1 has a cover plate 102 at the front end, and the cover plate 102 is connected to the mass spectrometer housing 1 by a hinge 101.

[0028] When using a mass spectrometer designed for easy sample positioning, the first step is sample placement. Multiple circular target plates, each containing a sample, are placed one by one into the pre-set sample placement slots 207 on the sample placement block 206. A portion of the circular target plate extends beyond the sample placement slot 207, ensuring each sample is precisely positioned to prepare for subsequent clamping and fixation. Next, multiple telescopic cylinders 202 are activated. Driven by the telescopic cylinders 202, the positioning disk 203 begins to move and gradually presses against the sides of the extended target plates. Due to the multi-directional clamping method, the positioning disk 203 applies a uniform clamping force to the sample containing the target plates from different directions, achieving effective simultaneous positioning of multiple samples. During sample detection, a liquid pump 20 at one end is activated. 4. The liquid pump 204 introduces coolant into the annular cavity 209 and the inlet cavity 208 through the connected hose 205. The coolant circulates within the cavity. Subsequently, the other end of the liquid pump 204 starts, drawing the circulated coolant back into the side housing 201 through the connected hose 205, forming a highly efficient circulation. When the positioning plate 203 abuts against the sample containing the target plate, the coolant can directly contact the target plate, rapidly removing the heat generated by the sample during the detection process through heat conduction. This direct contact cooling method greatly improves the cooling effect and effectively reduces the risk of changes in the physical or chemical properties of the sample due to temperature changes, thus effectively ensuring the stability of the sample during the detection process. Qualitative analysis provides strong support for obtaining accurate and reliable detection results for mass spectrometers. When it is necessary to switch between different samples for detection, motor 3 is started, which drives the sample placement block 206 to rotate. As the sample placement block 206 rotates, the various samples placed inside it also move to different positions. When the target sample moves to the designated position close to the positioning disk 203, motor 3 stops rotating. At this time, the telescopic cylinder 202 drives the positioning disk 203 to move, directly limiting and fixing the target plate containing the sample at that position for subsequent detection operations. This realizes automatic sample switching and positioning, eliminating the need for staff to repeatedly manually move the sample to the positioning position, greatly saving time and labor costs, and improving the efficiency of sample processing. A vibration motor 301 is installed at the bottom of the base plate 2. When the sample agglomerates or when it is necessary to ensure a more uniform sample distribution, the vibration motor 301 is activated. The vibration motor 301 generates vibrations of a specific frequency and intensity. The vibration is transmitted through the base plate 2 to the sample placement block 206, and then acts on the sample. Under the action of vibration, the agglomerated particles in the sample are impacted by external force and gradually disperse. The original situation of excessively high or low local sample concentration is effectively improved, and the sample is more evenly distributed throughout the placement area. During detection, the evenly distributed sample allows each tiny sample unit to be accurately detected, avoiding analytical errors caused by uneven sample distribution, thereby improving the accuracy and reliability of the analytical results.

[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A mass spectrometer for easy sample positioning, comprising a mass spectrometer housing (1), characterized in that, The mass spectrometer housing (1) has a groove at the bottom inside, and a base plate (2) is installed on the top of the groove. Side housings (201) are fixed on both sides of the top of the base plate (2). A sample placement block (206) is provided between the two side housings (201). The top of the sample placement block (206) is provided with multiple sample placement slots (207). A positioning component is provided on the surface of the side housing (201).

2. The mass spectrometer for easy sample positioning as described in claim 1, characterized in that, The positioning component includes a telescopic cylinder (202), which is installed on the inner side of the side housing (201). One end of the telescopic cylinder (202) is fixed with a positioning disc (203) via a piston rod.

3. The mass spectrometer for easy sample positioning as described in claim 2, characterized in that, The positioning disk (203) has an annular cavity (209) inside, and liquid inlet chambers (208) are opened at both ends of the annular cavity (209). One end of a flexible tube (205) is connected to the liquid inlet chamber (208).

4. The mass spectrometer for easy sample positioning as described in claim 3, characterized in that, The other end of the hose (205) is connected to a liquid pump (204), and the liquid pump (204) is connected to a side housing (201) away from the hose (205).

5. The mass spectrometer for easy sample positioning as described in claim 1, characterized in that, A heat-conducting plate (210) is fixed to the outer side of the side shell (201), and a plurality of heat dissipation fins (211) are fixed to the end of the heat-conducting plate (210) away from the side shell (201).

6. The mass spectrometer for easy sample positioning as described in claim 1, characterized in that, A motor (3) is installed in the middle of the bottom end of the base plate (2). The output shaft of the top of the motor (3) passes through the base plate (2) and a sample placement block (206) is fixed thereon. Vibration motors (301) are installed on both sides of the bottom of the base plate (2). The motor (3) and the vibration motor (301) are both located in the groove opened at the bottom of the mass spectrometer housing (1).

7. The mass spectrometer for easy sample positioning as described in claim 1, characterized in that, The mass spectrometer housing (1) is provided with a cover plate (102) at the front end, and the cover plate (102) is connected to the mass spectrometer housing (1) by a hinge (101).

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