Three-dimensional mobile platform for mass spectrometer

Abstract

The invention discloses a three-dimensional mobile platform for a mass spectrometer. The three-dimensional mobile platform comprises a shell, the first adjusting assembly is controlled by the horizontal adjusting linear motor; the second adjusting assembly is controlled by a vertical adjusting linear motor and a depth adjusting linear motor; rotating shaft control rod and rotating shaft bracket are connected through rotating shaft control rod and rotating shaft bracket, wherein the rotating shaft control rod is installed on a vertical adjusting assembly, driven by a vertical adjusting linear motor to do linear motion and can rotate around a moving cavity rotating shaft connected with the vertical adjusting linear motor, and the rotating shaft bracket is installed on a depth adjusting assembly and driven by a depth adjusting linear motor to do linear motion. Adjusting the line perpendicularity and depth; by means of connecting rod type adjustment in the depth direction and the vertical direction, accurate adjustment is guaranteed, the size is greatly reduced, integration and miniaturization design of an instrument is better facilitated, meanwhile, cost is reduced, and operation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the field of mass spectrometers, and in particular to a three-dimensional mobile platform for mass spectrometers. Background Art

[0002] The plasma in the plasma flame generated by ICP forms a very thin plasma beam, which enters the mass spectrometer through the interface device. The main parameter of the interface device is the sampling depth, that is, the distance between the sampling cone hole and the torch tube. The distance and concentricity of the two cone holes are adjusted, and the lens voltage is also adjusted to make the ions have a good focus. In order to achieve the best focusing effect, the vertical position, horizontal position, and sampling depth are adjusted.

[0003] The existing technology has a complex structure and a large volume, and is not suitable for the integrated design of the instrument. Summary of the invention

[0004] In view of this, it is necessary to overcome at least one of the above-mentioned deficiencies in the prior art.

[0005] The present invention provides a three-dimensional mobile platform for a mass spectrometer, comprising: a shell, a first adjustment component and a second adjustment component are arranged on the outer bottom of the shell, the first adjustment component comprises a horizontal adjustment linear motor and a matching box component driven by the horizontal adjustment linear motor to perform horizontal linear motion, the second adjustment component comprises a vertical adjustment component and a depth adjustment component and an installation cavity, the vertical adjustment component comprises a vertical adjustment linear motor installed on the outer side of the installation cavity, the depth adjustment component comprises a depth adjustment linear motor installed on the outer side of the installation cavity, the vertical adjustment linear motor and the depth adjustment linear motor are vertically installed according to the movement direction of their lead screws, and are located on two parallel planes with a certain distance, the vertical adjustment component and the depth adjustment component are connected together through a shaft control rod installed on the vertical adjustment component, which is driven by the vertical adjustment linear motor to perform linear motion and can rotate around a movable cavity shaft connected to the vertical adjustment linear motor, and a shaft bracket installed on the depth adjustment component, which is driven by the depth adjustment linear motor to perform linear motion.

[0006] According to the prior art described in the background of the present invention, the structure is complex and the volume is large, which is not suitable for the integrated design of the instrument. However, the three-dimensional mobile platform for the mass spectrometer provided by the present invention ensures precise adjustment through the connecting rod adjustment in the depth and vertical directions, and greatly reduces the volume, which is more conducive to the integrated and miniaturized design of the instrument, while reducing the cost and improving the convenience of operation.

[0007] In addition, the three-dimensional mobile platform for a mass spectrometer disclosed in the present invention also has the following additional technical features: Further, the three-dimensional mobile platform for a mass spectrometer also includes a shielding cover, which is fixedly mounted on the side of the matching box assembly, and is connected to the matching box assembly through a quartz rectangular tube and a coil mounted on its side and a fixed block mounted on the matching box assembly, and can move with the matching box assembly.

[0008] The matching box assembly is connected to the detection box by using a coil, which can further ensure the stability of its horizontal operation.

[0009] Furthermore, the vertical motor lead screw on the vertical adjustment linear motor is connected to one end of the movable cavity shaft through a lead screw fixing plate and a rotating component, and the other end of the movable cavity shaft is installed on the opposite side of the installation cavity through a bearing.

[0010] The movable cavity shaft can rotate around itself and can follow the vertical adjustment linear motor to move in the vertical direction, that is, it can perform rotational movement as well as linear movement. There are supports at both ends to ensure that it has corresponding rigidity.

[0011] Furthermore, the shaft control rod is parallel to the movement direction of the vertical adjustment linear motor and is connected to the movable cavity shaft through an adjustment connecting piece, forming a polygonal structure with the movable cavity shaft as the shaft and the adjustment connecting piece as the support.

[0012] Furthermore, if there is one adjusting connecting piece, the polygonal structure forms a closed three-sided structure or a semi-closed three-sided structure.

[0013] Furthermore, if there are two adjusting connecting pieces, the polygonal structure forms a closed quadrilateral structure.

[0014] Furthermore, the depth adjustment component also includes a sliding mechanism, and the rotating shaft bracket is installed on the sliding mechanism and is driven by the depth adjustment linear motor to perform linear motion.

[0015] Furthermore, the rotating shaft bracket has a through slot, and the rotating shaft control rod is connected to the depth adjustment assembly through the through slot.

[0016] Furthermore, the through slot and the shaft control rod are precisely matched.

[0017] The precise coordination between the two can ensure the continuity of the adjustment process.

[0018] Furthermore, the horizontal adjustment linear motor or the vertical adjustment linear motor or the depth adjustment linear motor or the movable cavity shaft also includes a limiting device.

[0019] The beneficial effects of the present application are: precise adjustment is ensured through linkage adjustment of depth and vertical direction, and the volume is greatly reduced, which is more conducive to the integrated and miniaturized design of the instrument, while reducing costs and improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic front view of an embodiment of the present invention;

[0021] Figure 2 A 3D diagram of an embodiment of the present invention;

[0022] Figure 3 This is a front view schematic diagram of an embodiment of the present invention with the side of the housing removed;

[0023] Figure 4 A 3D schematic diagram of an embodiment of the present invention with the side of the housing removed;

[0024] Figure 5 A schematic diagram of a second adjustment component according to an embodiment of the present invention;

[0025] Figure 6 3D schematic diagram of a second adjustment component without the mounting cavity according to the present invention Figure 7 Schematic diagram of the vertical adjustment assembly;

[0026] Figure 7 It is a schematic diagram of the vertical adjustment component;

[0027] Figure 8 For the present invention Figure 3 Schematic diagram of the opposite side;

[0028] Fig. 9 Schematic diagram of the depth adjustment component.

[0029] Figure numerals; wherein, 1. housing, 2. second adjustment assembly, 210. vertical adjustment linear motor, 211. movable chamber side cover, 212. lead screw fixing plate, 213. adjustment connecting piece, 214. shaft control rod, 215. small slide rail, 216. support block limit sleeve, 217. slotted cone end positioning screw, 218. movable chamber shaft, 219. vertical motor lead screw, 220. support block, 240. depth adjustment linear motor, 241. depth motor lead screw, 242. support block, 243. shaft bracket, 244. motor fixing plate, 245. limit switch, 250. installation chamber, 310. horizontal adjustment linear motor, 311. coil, 312. fixing block, 320. matching box assembly, 410. shielding cover, 411. quartz torch. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0031] Example:

[0032] like Figure 1-9 As shown, the three-dimensional mobile platform for a mass spectrometer provided by the present invention comprises: a housing 1, a first adjustment component and a second adjustment component 2;

[0033] The first adjustment component includes a horizontal adjustment linear motor 310 installed at the bottom of the outer side of the housing 1 and a matching box component 320 driven by the horizontal adjustment linear motor 310 to perform horizontal linear motion. Figure 1-4 As shown;

[0034] The second adjustment component 2 includes a vertical adjustment component and a depth adjustment component and a mounting cavity, wherein the vertical adjustment component includes a vertical adjustment linear motor 210 mounted on the outside of the mounting cavity 250, and the depth adjustment component includes a depth adjustment linear motor 240 mounted on the outside of the mounting cavity 250. The vertical adjustment linear motor 210 and the depth adjustment linear motor 250 are vertically mounted according to the movement direction of their screw rods (219, 241), and are located on two parallel planes with a certain distance. The vertical adjustment component and the depth adjustment component are connected together by a shaft control rod 214 installed on the vertical adjustment component, which is driven by the vertical adjustment linear motor 210 to make linear motion and can rotate around a movable cavity shaft 218 connected to the vertical adjustment linear motor 210, and a shaft bracket 243 installed on the depth adjustment component, which is driven by the depth adjustment linear motor 240 to make linear motion, such as Figure 5 , 6 , 7, 9;

[0035] The second adjustment component 2 is connected to the matching box component 320 through a support block 220 installed on the second adjustment component 2 and connected to the moving cavity shaft 218, and is indirectly driven by the horizontal adjustment linear motor 310. Figure 5 , 6 , 7, 9.

[0036] In this embodiment, the three-dimensional mobile platform for mass spectrometer further includes a shielding cover 410, which is fixedly mounted on the side of the matching box assembly 320, and is connected to the matching box assembly 320 through a pulley quartz rectangular tube 411 and a coil 311 mounted on the side thereof and a fixed block 312 mounted on the matching box assembly 320, and can move with the matching box assembly 320, such as Figure 8 shown.

[0037] The matching box assembly 320 is connected to the detection box shield 320 by using the coil 311, which can further ensure the stability of its horizontal operation.

[0038] In this embodiment, the vertical motor lead screw 219 on the vertical adjustment linear motor 210 is connected to one end of the movable cavity shaft 218 through the lead screw fixing plate 212 and the rotating component, and the other end of the movable cavity shaft 218 is installed on the opposite side of the installation cavity 250 through a bearing. Figure 7 shown.

[0039] The movable cavity shaft 218 can rotate around itself and can follow the vertical adjustment linear motor 210 to move in the vertical direction, that is, it can perform rotational movement as well as linear movement. There are supports at both ends to ensure that it has the corresponding rigidity.

[0040] In this embodiment, the shaft control rod 214 is parallel to the movement direction of the vertical adjustment linear motor 210 and is connected to the movable cavity shaft 218 through the adjustment connecting piece 213, forming a cross-section of a polygonal structure with the movable cavity shaft 218 as the shaft and the adjustment connecting piece 213 as the support. Figure 7 shown.

[0041] Optionally, there is one adjusting connector 213, and the polygonal structure forms a closed triangular structure or a semi-closed triangular structure.

[0042] Preferably, there are two adjusting coupling members 213, and the polygonal structure forms a closed quadrilateral structure, such as Figure 7 shown.

[0043] In this embodiment, the depth adjustment assembly further includes a sliding mechanism, and the rotating shaft bracket 243 is mounted on the sliding mechanism and driven by the depth adjustment linear motor 240 to perform linear motion. Figure 7 , 9 According to some embodiments of the present invention, the shaft bracket 243 has a through slot, and the shaft control rod 214 is connected to the depth adjustment assembly through the through slot. Fig. 9 shown.

[0044] Preferably, the through slot and the shaft control rod are precisely matched.

[0045] The precise coordination between the two can ensure the continuity of the adjustment process.

[0046] In this embodiment, the horizontal adjustment linear motor 310 or the vertical adjustment linear motor 210 or the depth adjustment linear motor 240 or the movable cavity rotating shaft 218 further includes a limiting device.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-dimensional mobile platform for a mass spectrometer, characterized in that: It includes a shell, and a first adjusting component and a second adjusting component are arranged on the outer bottom of the shell, the first adjusting component includes a horizontal adjusting linear motor and a matching box component driven by the horizontal adjusting linear motor to perform horizontal linear motion, the second adjusting component includes a vertical adjusting component, a depth adjusting component and an installation cavity, the vertical adjusting component includes a vertical adjusting linear motor installed on the outside of the installation cavity, the depth adjusting component includes a depth adjusting linear motor installed on the outside of the installation cavity, the vertical adjusting linear motor and the depth adjusting linear motor are installed vertically according to the movement direction of their screw rods, and are located on two parallel planes with a certain distance, the vertical adjusting component and the depth adjusting component are connected together through a shaft control rod installed on the vertical adjusting component, which is driven by the vertical adjusting linear motor to perform linear motion and can rotate around the movable cavity shaft connected to the vertical adjusting linear motor, and a shaft bracket installed on the depth adjusting component, which is driven by the depth adjusting linear motor to perform linear motion.

2. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The three-dimensional mobile platform for the mass spectrometer also includes a shielding cover, which is fixedly mounted on the side of the matching box assembly, connected to the matching box assembly through a quartz rectangular tube and a coil mounted on the side and a fixed block mounted on the matching box assembly, and can move with the matching box assembly.

3. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The vertical motor lead screw on the vertical adjustment linear motor is connected to one end of the movable cavity rotating shaft through a lead screw fixing plate and a rotating component, and the other end of the movable cavity rotating shaft is installed on the opposite side of the installation cavity through a bearing.

4. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The shaft control rod is parallel to the moving direction of the vertical adjustment linear motor and is connected to the movable cavity shaft through an adjustment connecting piece, forming a cross-section of a polygonal structure with the movable cavity shaft as the shaft and the adjustment connecting piece as the support.

5. The three-dimensional mobile platform for mass spectrometer according to claim 4, characterized in that: If there is one adjusting connecting piece, the polygonal structure forms a closed three-sided structure or a semi-closed three-sided structure.

6. The three-dimensional mobile platform for mass spectrometer according to claim 4, characterized in that: If there are two adjusting connecting pieces, the polygonal structure forms a closed quadrilateral structure.

7. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The depth adjustment component also includes a sliding mechanism, and the rotating shaft bracket is installed on the sliding mechanism and is driven by the depth adjustment linear motor to perform linear motion.

8. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The rotating shaft bracket has a through slot, and the rotating shaft control rod is connected to the depth adjustment assembly through the through slot.

9. The three-dimensional mobile platform for mass spectrometer according to claim 8, characterized in that: The through slot and the rotating shaft control rod are precisely matched.

10. The three-dimensional mobile platform for mass spectrometer according to claim 1, characterized in that: The horizontal adjustment linear motor, the vertical adjustment linear motor, the depth adjustment linear motor or the movable cavity rotating shaft further includes a limiting device.

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