Convenient and fast disassembly type ion source spray needle

Abstract

The utility model relates to the technical field of ion source spray needles, in particular to a convenient and fast disassembly type ion source spray needle which comprises an ion source support, an electrospray ion source fixedly installed at the bottom, a fast installer fixedly installed on the outer side of the bottom and an installation connector fixedly installed at the bottom. The spray needle assembly is mounted at the bottom of an electrospray ion source through a quick mounting device. When the spray needle body needs to be dismantled, the hand-operated grab bar can be pushed by manually pulling the hand-operated grab ball to drive the quick-release linkage frame body to move downwards, the displacement block slides in the guide rail for guiding to enable the quick-release linkage frame body to move downwards stably, and the bottom inclined face of the quick-release linkage frame body makes contact with the inner end arc face of the guide frame body for guiding; the guide frame body is opened to enable the two sides of the guide frame body to slide, the sliding block is pushed to extrude the limiting spring, the clamping block at the end of the limiting frame is separated from the clamping groove, the spray needle connector loses limitation, and the spray needle assembly is rapidly disassembled.

Description

Technical Field

[0001] This application relates to the technical field of ion source spray needles, and in particular to a convenient and quick-disassembly ion source spray needle. Background Art

[0002] The ion source spray needle is a key component in analytical techniques such as ion source liquid chromatography. It is usually a slender metal needle with a finely processed and treated tip. During operation, the sample solution passes through the spray needle and forms charged micro-droplets under the action of high voltage. These charged droplets undergo a series of physical and chemical processes to achieve the ionization of the sample for subsequent separation and detection. The design and performance of the ion source spray needle directly affect the ionization efficiency, spray stability, and the accuracy and reproducibility of the final analysis results. Its material, shape, size, surface treatment and other characteristics will have an important impact on the spray effect. Different types of analysis requirements may require spray needles with different specifications and characteristics to achieve the best analysis performance.

[0003] Through retrieval, Chinese Patent Publication No. CN117558612A discloses an ion source spray needle that is convenient for replacement and maintenance, which includes an ion source bracket. An electrospray ion source is fixedly installed inside the ion source bracket, and an ion source connection pipe is fixedly installed on the top of the electrospray ion source. This application can cooperate with a driving mechanism, a limiting mechanism and a linkage mechanism to assist in quickly disassembling and assembling the spray needle body. The whole can be automatically and quickly disassembled and separated without manual twisting. Compared with the existing technical solution using bolts for installation, the whole device is more convenient to disassemble and assemble, and there is no need to worry about the problem of bolt thread slipping. The overall service life is relatively long. At the same time, during disassembly and assembly in the use process, only need to quickly pull out the spray needle body from the bottom of the electrospray ion source to complete disassembly and assembly. The whole disassembly and assembly is extremely convenient, saving the maintenance time during mass spectrometry detection and improving the efficiency of detection work.

[0004] During the application of the above-mentioned device, the lead screw is driven by a motor to drive the bottom limiting device for linkage limiting, so as to assist in the installation of the spray needle. Although this method can achieve the functions of quick disassembly and assembly and stable installation, there are still certain defects and deficiencies in the specific application process. First of all, during the application process, it is necessary to additionally install drive structures such as motors and lead screws to assist in the installation. However, adding these structures to the ion source will make the production and processing of the electrospray ion source more complicated. At the same time, the addition of the motor and lead screw structures themselves will also significantly increase the use cost. In addition, subsequent maintenance work such as motor maintenance will also increase the use cost. Moreover, during its installation process, it must be powered on to assist in disassembly and assembly. However, during equipment maintenance or assembly, the equipment is usually in a power-off state. If quick installation is required, special power-on operations have to be carried out. It can be seen that this method will bring certain inconveniences in the sales assembly and maintenance links. Therefore, it is necessary to improve its design. Summary of the Invention

[0005] In order to improve the convenience of maintenance, the present application provides a convenient and quick-disassembly ion source spray needle.

[0006] A convenient and quick-disassembly ion source spray needle provided by the present application adopts the following technical solutions: It includes an ion source bracket, an electrospray ion source is fixedly installed at the bottom of the ion source bracket, a quick installer is fixedly installed on the outer side of the bottom of the electrospray ion source, an installation joint is fixedly installed at the bottom of the electrospray ion source, a spray needle assembly is inserted into the interior of the installation joint, and the spray needle assembly is installed at the bottom of the electrospray ion source through the quick installer;

[0007] The quick installer includes a linkage mechanism and side rail frames. The linkage mechanism is fixedly installed on one side of the electrospray ion source, the side rail frames are fixedly installed on both sides of the bottom of the electrospray ion source, a limiting mechanism is fixedly installed inside the side rail frames, and the spray needle assembly is installed at the bottom of the electrospray ion source through the limiting mechanism;

[0008] An installation disk is fixedly installed at the top of the ion source bracket, installation holes are equidistantly arranged at the outer end of the bottom of the installation disk, and the installation holes are counterbored holes;

[0009] An ion source connecting pipe is fixedly installed at the top of the electrospray ion source, and a threaded joint is fixedly installed at the top of the ion source connecting pipe through the installation disk.

[0010] Optionally, the limiting mechanism includes a limiting spring and a convex block. The limiting spring is fixedly installed inside the side rail frame. A slider is fixedly installed at the end of the limiting spring. A limiting frame is fixedly installed at the bottom of the slider. The convex blocks are fixedly installed on both sides of the upper end of the spray needle assembly. A clamping groove is formed on the outer side of the convex block. A clamping block is fixedly installed at the bottom of the limiting frame. The clamping block is inserted into the clamping groove.

[0011] Optionally, the linkage mechanism includes a guiding frame body and a guiding rail. The guiding rail is fixedly installed on one side of the electrospray ion source. The guiding frame body is fixedly installed on the side of the slider close to the guiding rail. A displacement block is slidably connected inside the guiding rail. A quick-release linkage frame body is fixedly installed on the front surface of the displacement block. The bottom of the quick-release linkage frame body is in close contact with the inner side of the guiding frame body.

[0012] Optionally, the overall shape of the quick-release linkage frame body is arrow-shaped. The inner end of the guiding frame body is integrally circular-arc-shaped. The inclined surface at the bottom of the quick-release linkage frame body is in close contact with the arc surface at the inner end of the guiding frame body.

[0013] Optionally, a hand-operated handrail rod is fixedly installed at the upper end of the side of the quick-release linkage frame body away from the electrospray ion source. A hand-operated handrail ball is fixedly connected to the outer end of the hand-operated handrail rod.

[0014] Optionally, the overall cross-sectional shape of the clamping block is right trapezoidal. The inclined surface of the clamping block is arranged at the inner end of the bottom.

[0015] Optionally, the spray needle assembly includes a spray needle joint. The spray needle joint is inserted inside the installation joint. Both sides of the spray needle joint are fixedly connected to the convex blocks. A threaded groove is formed at the bottom of the spray needle joint. A threaded installation pipe is threadedly connected inside the threaded groove. A sealing cover is fixedly installed at the bottom of the threaded installation pipe. A spray needle body is fixedly installed at the bottom of the sealing cover.

[0016] Optionally, anti-slip protrusions are fixedly connected at equal intervals at the upper end of the sealing cover. Sealing gaskets are fixedly connected to both the top of the sealing cover and the top of the spray needle joint. The sealing gasket at the top of the spray needle joint is in close contact with the top of the spray needle body. The sealing gasket at the top of the spray needle joint is in close contact with the installation joint.

[0017] In summary, the present application includes the following beneficial technical effects:

[0018] 1. By setting up a quick installer, the spray needle assembly is filled into the installation joint during installation. The top of the spray needle joint contacts the inclined surface of the clamping block to move the limit frame outward, and the limit spring is extended. After the spray needle joint is inserted, the limit spring is reset when the clamping block contacts the clamping groove, driving the limit frame to move inward, and the clamping block is inserted into the clamping groove to complete the clamping installation. No motor drive is required during use. Just push the spray needle body upward to insert the joint. The clamping is quickly completed through the clamping block and clamping groove, making the installation of the spray needle body convenient and fast.

[0019] 2. A linkage mechanism is set to cooperate with a limit mechanism. When the spray needle body needs to be removed, the hand-operated handrail ball is manually pulled to push the hand-operated handrail rod to drive the quick-release linkage frame to move downward. The displacement block slides and guides in the guide rail to make the quick-release linkage frame move downward stably. The bottom inclined surface of the quick-release linkage frame contacts and guides the inner arc surface of the guide frame body, and the guide frame is opened to slide and displace on both sides. The slider is pushed to squeeze the limit spring, and the clamping block at the end of the limit frame is disengaged from the clamping groove. The spray needle joint loses the limit, and the spray needle assembly is quickly removed. The spray needle assembly is set. After the spray needle joint is removed, the equipment can work again. The removed assembly can be further disassembled and assembled. The anti-slip protrusion is held to twist the threaded mounting tube to remove it. The body and the joint can be quickly replaced to avoid waste. When the spray needle assembly is used, the sealing cover and the sealing gasket can improve the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the rear view structure in the embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the structure viewed from above in an embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the structure in an overall split state as viewed from above in an embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the top view of the overall disassembled state of the embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the spray needle assembly in the embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of the structure of the limiting mechanism in the embodiment of the present application;

[0027] Figure 8 It is a schematic diagram of the quick-release linkage frame structure in an embodiment of the present application.

[0028] Reference Numerals: 1, ion source bracket; 2, electrospray ion source; 3, quick installer; 31, linkage mechanism; 311, guiding frame body; 312, guiding rail; 313, displacement block; 314, quick-release linkage frame body; 315, hand-operated handrail rod; 316, hand-operated handrail ball; 32, side rail frame; 33, limiting mechanism; 331, limiting spring; 332, bump; 333, slider; 334, limiting frame; 335, clamping block; 336, clamping groove; 4, mounting joint; 5, spray needle assembly; 51, spray needle joint; 52, threaded groove; 53, spray needle body; 54, threaded mounting tube; 55, sealing cover; 56, anti-slip protrusion; 6, mounting disc; 7, mounting hole; 8, ion source connecting tube; 9, threaded joint. Detailed Implementation Modes

[0029] The following further elaborates on this application Figure 1-8 in conjunction with the accompanying drawings.

[0030] An embodiment of this application discloses a convenient and quick-release ion source spray needle. As Figure 1-8 shown, it includes an ion source bracket 1, an electrospray ion source 2 is fixedly installed at the bottom of the ion source bracket 1, a quick installer 3 is fixedly installed on the outer side of the bottom of the electrospray ion source 2, a mounting joint 4 is fixedly installed at the bottom of the electrospray ion source 2, a spray needle assembly 5 is inserted into the interior of the mounting joint 4, and the spray needle assembly 5 is installed at the bottom of the electrospray ion source 2 through the quick installer;

[0031] The quick installer 3 includes a linkage mechanism 31 and a side rail frame 32. The linkage mechanism 31 is fixedly installed on one side of the electrospray ion source 2, the side rail frame 32 is fixedly installed on both sides of the bottom of the electrospray ion source 2, a limiting mechanism 33 is fixedly installed inside the side rail frame 32, the spray needle assembly 5 is installed at the bottom of the electrospray ion source 2 through the limiting mechanism 33. The ion source bracket 1 provides stable support for the entire device. The electrospray ion source 2 is fixed at the bottom of the ion source bracket 1, and the quick installer 3 on its outer bottom plays a key role. The linkage mechanism 31 in the quick installer 3 can achieve efficient operation linkage, and the side rail frame 32 provides a stable installation foundation for the internal limiting mechanism 33. Through the limiting mechanism 33, the spray needle assembly 5 can be conveniently and stably installed at the bottom of the electrospray ion source 2, realizing quick disassembly and assembly without complex operations and additional tools. This design not only improves the efficiency of installation and disassembly, reduces operation time and labor costs, but also ensures the stability and reliability of the spray needle assembly 5 during operation, making the entire ion source spray needle more convenient, efficient and stable during use.

[0032] Please refer to Figure 1 to Figure 5, a mounting disk 6 is fixedly installed at the top of the ion source bracket 1. Installation holes 7 are equidistantly arranged at the outer end of the bottom of the mounting disk 6. The installation holes 7 are countersunk holes. A ion source connecting pipe 8 is fixedly installed at the top of the electrospray ion source 2. The top of the ion source connecting pipe 8 penetrates through the mounting disk 6 and is fixedly installed with a threaded joint 9. The installation holes 7 equidistantly arranged at the outer end of the bottom of the mounting disk 6 are countersunk holes. This design makes the installation more stable and beautiful. The ion source connecting pipe 8 at the top of the electrospray ion source 2 penetrates through the mounting disk 6 and a threaded joint 9 is fixedly installed at its top, enhancing the tightness and stability of the connection. The countersunk hole can effectively hide the installation screw head, reduce the interference of the protruding part on the surrounding environment, and at the same time ensure the firmness of the installation. The cooperation of the ion source connecting pipe 8 and the threaded joint 9 makes it convenient for the electrospray ion source 2 to connect to the device, which is beneficial to transmitting signals and energy, reducing the risk of failures caused by loose connections, and improving the stability and reliability of the entire device.

[0033] Please refer to Figure 1-5 and Figure 7 , the limiting mechanism 33 includes a limiting spring 331 and a convex block 332. The limiting spring 331 is fixedly installed inside the side rail bracket 32. A slider 333 is fixedly installed at the end of the limiting spring 331. A limiting frame 334 is fixedly installed at the bottom of the slider 333. The convex block 332 is fixedly installed on both sides of the upper end of the spray needle assembly 5. A clamping groove 336 is opened on the outside of the convex block 332. A clamping block 335 is fixedly installed at the bottom of the limiting frame 334. The clamping block 335 is inserted into the inside of the clamping groove 336. The linkage mechanism 31 includes a guiding frame body 311 and a guiding rail 312. The guiding rail 312 is fixedly installed on one side of the electrospray ion source 2. The guiding frame body 311 is fixedly installed on the side of the slider 333 close to the guiding rail 312. A displacement block 313 is slidably connected inside the guiding rail 312. A quick-release linkage frame body 314 is fixedly installed on the front of the displacement block 313. The bottom of the quick-release linkage frame body 314 is in close contact with the inner side of the guiding frame body 311. In the limiting mechanism 33, the limiting spring 331 inside the side rail bracket 32 provides elastic support for the slider 333, enabling the slider 333 to drive the limiting frame 334 to move flexibly. When the clamping block 335 is inserted into the clamping groove 336 on the outside of the convex block 332, stable limiting is achieved, ensuring the accurate and stable position of the spray needle assembly 5. In the linkage mechanism 31, the guiding rail 312 provides an accurate sliding track for the displacement block 313. The close connection between the guiding frame body 311 and the quick-release linkage frame body 314 realizes effective force transmission. When the quick-release linkage frame body 314 moves, it can drive the slider 333 and the limiting frame 334 to act through the guiding frame body 311, thereby realizing the quick disassembly and assembly of the spray needle assembly 5. The entire design makes the installation and disassembly of the spray needle assembly 5 both accurate and efficient, improving the convenience and reliability of operation, reducing the difficulty of maintenance and replacement, and ensuring the normal operation of the equipment.

[0034] Please refer to Figure 1 to Figure 5 and Figure 8 , the overall shape of the quick-release linkage frame 314 is arrow-shaped, the inner end of the guide frame 311 is circular-arc-shaped as a whole, the bottom inclined surface of the quick-release linkage frame 314 is in fitting connection with the arc surface of the inner end of the guide frame 311. A manual operation handrail rod 315 is fixedly installed at the upper end of the side of the quick-release linkage frame 314 away from the electrospray ion source 2. A manual operation handrail ball 316 is fixedly connected to the outer end of the manual operation handrail rod 315. The overall cross-sectional shape of the clamping block 335 is right trapezoid, and the inclined surface of the clamping block 335 is arranged at the inner end of the bottom. The quick-release linkage frame 314 is arrow-shaped as a whole, which is beneficial to auxiliary guiding and linkage, and improves the fluency of operation. The inner end of the guide frame 311 is circular-arc-shaped, which can be perfectly in fitting connection with the bottom inclined surface of the quick-release linkage frame 314, ensuring the effective transmission of force and the accuracy of movement. The manual operation handrail ball 316 at the outer end of the manual operation handrail rod 315 facilitates the operator to perform manual operation, making the pushing action more convenient and comfortable. The right trapezoid cross-sectional shape of the clamping block 335, especially the inclined surface design at the inner end of the bottom, not only enhances the structural stability, but also can realize smooth sliding guidance when cooperating with other components, improving the disassembly and assembly convenience of the whole device, and making the disassembly and assembly process of the spray needle assembly 5 simpler, faster and more stable.

[0035] Please refer to Figure 1 to Figure 6, the spray needle assembly 5 includes a spray needle joint 51. The spray needle joint 51 is inserted inside the mounting joint 4. Both sides of the spray needle joint 51 are fixedly connected to the convex blocks 332. A threaded groove 52 is formed at the bottom of the spray needle joint 51. A threaded mounting pipe 54 is threadedly connected inside the threaded groove 52. A sealing cover 55 is fixedly installed at the bottom of the threaded mounting pipe 54. A spray needle body 53 is fixedly installed at the bottom of the sealing cover 55. Anti-slip protrusions 56 are fixedly connected to the upper end of the sealing cover 55 at equal intervals. Sealing gaskets are fixedly connected to the top of the sealing cover 55 and the top of the spray needle joint 51 respectively. The sealing gasket at the top of the spray needle joint 51 is in fit connection with the top of the spray needle body 53, and the sealing gasket at the top of the spray needle joint 51 is in fit connection with the mounting joint 4. The spray needle joint 51 is inserted inside the mounting joint 4 and fixedly connected to the convex blocks 332, ensuring the stability of the connection. The threaded groove 52 formed at the bottom is threadedly connected to the threaded mounting pipe 54, which is convenient for disassembly, installation and maintenance. The setting of the sealing cover 55 and its fixed connection with the threaded mounting pipe 54 enhance the overall sealing performance. The spray needle body 53 is connected to the threaded mounting pipe 54 through the sealing cover 55, ensuring the stability of the work and being convenient for quick disassembly and installation. The anti-slip protrusions 56 at equal intervals on the upper end of the sealing cover 55 facilitate the grasping and rotation during operation. The sealing gaskets at the top of the sealing cover 55 and the top of the spray needle joint 51 are in fit connection with the top of the spray needle body 53 and the mounting joint 4 respectively, greatly improving the sealing performance, effectively preventing liquid leakage or gas entry, ensuring the normal operation of the spray needle assembly 5, extending the service life, and improving the work efficiency and quality.

[0036] The implementation principle of a convenient and quick-disassembly ion source spray needle in an embodiment of this application is as follows: By setting up a quick installer 3, the installation operation during the use of this device becomes more convenient and efficient. When installing, the spray needle assembly 5 can be filled upward into the interior of the installation joint 4. During the installation process, the top of the spray needle joint 51 will contact the inclined surface at the bottom of the clamping block 335. After the inclined surface of the clamping block 335 is stressed, it will resist the limiting frame 334 to move outward. At this time, the limiting spring 331 is in a stretched state. As the limiting frame 334 moves outward, the spray needle joint 51 can be smoothly inserted into the interior of the installation joint 4. Through the mutual connection between the spray needle joint 51 and the installation joint 4, when the clamping block 335 contacts the position where the clamping groove 336 is located, the limiting spring 331 resets, thereby driving the limiting frame 334 to move inward. While the limiting frame 334 moves inward, it will drive the clamping block 335 to insert into the interior of the clamping groove 336. The clamping block 335 and the clamping groove 336 limit each other, thereby assisting in completing the clamping installation of the spray needle body 53. It can be clearly seen that during its use, there is no need to additionally set up a motor for driving. Just push the spray needle body 53 upward to insert the spray needle joint 51 into the interior of the installation joint 4. Through the mutual limitation between the clamping block 335 and the clamping groove 336, the clamping operation can be completed quickly and smoothly, which makes the overall installation of the spray needle body 53 of this device more convenient and fast;

[0037] By arranging the linkage mechanism 31 to cooperate with the limiting mechanism 33, when the spray needle body 53 needs to be removed during use of the device, the manual handrail ball 316 can be manually pulled to push the manual handrail rod 315, thereby driving the quick-release linkage frame 314 to move downward. During this process, the sliding guide of the displacement block 313 inside the guide rail 312 causes the quick-release linkage frame 314 to move downward stably. During the downward movement of the quick-release linkage frame 314, the bottom inclined surface of the quick-release linkage frame 314 will contact the guide frame 314. The inner end arc surface of the body 311 is in contact with the bottom inclined surface of the quick-release linkage frame body 314 and the inner end arc surface of the guide frame body 311 can play an auxiliary guiding role. The downward movement of the quick-release linkage frame body 314 can open the guide frame body 311, and the guide frame body 311 can slide and move toward both sides. When the guide frame body 311 slides and moves toward both sides, it pushes the slider 333 to squeeze the limit spring 331. At the same time, in this process, the clamping block 335 at the end of the limit frame 334 will be separated from the clamping groove 336, and the clamping block 335 and the clamping The connecting grooves 336 are separated from each other. At this time, the spray needle connector 51 loses its limit, and the spray needle assembly 5 and its spray needle body 53 can be quickly removed as a whole. It can be clearly seen that the overall disassembly and assembly process of the device is more convenient and rapid. By setting the spray needle assembly 5, during the application of the device, after the spray needle connector 51 is removed, the device can be put into operation again immediately, and the removed spray needle assembly 5 can be further disassembled and assembled. At this time, it is only necessary to hold the anti-slip protrusion 56 and then twist the threaded mounting tube 54, so that the threaded mounting tube 54 can be detached from the inside of the threaded groove 52, and the spray needle assembly 5 can be removed at this time. It can be clearly seen that the device can not only quickly remove the spray needle assembly 5, but also quickly replace the spray needle body 53 and the spray needle connector 51, effectively avoiding the waste caused by replacing the entire spray needle connector 51. In addition, during the use of the spray needle assembly 5, the sealing cover 55 is provided with the sealing gasket, which can significantly improve the sealing performance of the spray needle body 53 and the mounting structure after installation.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A convenient quick-detachable ion source spray needle, comprising an ion source bracket (1), an electrospray ion source (2) fixedly mounted on the bottom of the ion source bracket (1), a quick installer (3) fixedly mounted on the outer side of the bottom of the electrospray ion source (2), a mounting joint (4) fixedly mounted on the bottom of the electrospray ion source (2), a spray needle assembly (5) inserted into the interior of the mounting joint (4), and the spray needle assembly (5) being mounted on the bottom of the electrospray ion source (2) by quick installation; The quick installer (3) comprises a linkage mechanism (31) and a side rail frame (32), wherein the linkage mechanism (31) is fixedly mounted on one side of the electrospray ion source (2), the side rail frame (32) is fixedly mounted on both sides of the bottom of the electrospray ion source (2), a limiting mechanism (33) is fixedly mounted inside the side rail frame (32), and the spray needle assembly (5) is mounted on the bottom of the electrospray ion source (2) via the limiting mechanism (33); A mounting plate (6) is fixedly mounted on the top of the ion source support (1), mounting holes (7) are provided at equal intervals on the outer end of the bottom of the mounting plate (6), and the mounting holes (7) are configured as countersunk holes; An ion source connecting tube (8) is fixedly mounted on the top of the electrospray ion source (2), and a threaded joint (9) is fixedly mounted on the top of the ion source connecting tube (8) through the mounting plate (6).

2. The convenient and quick-detachable ion source spray needle according to claim 1, characterized in that: The limiting mechanism (33) comprises a limiting spring (331) and a protrusion (332); the limiting spring (331) is fixedly mounted inside the side rail frame (32); a slider (333) is fixedly mounted on the end of the limiting spring (331); a limiting frame (334) is fixedly mounted on the bottom of the slider (333); the protrusion (332) is fixedly mounted on both sides of the upper end of the spray needle assembly (5); a clamping groove (336) is formed on the outer side of the protrusion (332); a clamping block (335) is fixedly mounted on the bottom of the limiting frame (334); and the clamping block (335) is inserted into the inside of the clamping groove (336).

3. The convenient and quick-detachable ion source spray needle according to claim 2, characterized in that: The linkage mechanism (31) comprises a guide frame (311) and a guide rail (312); the guide rail (312) is fixedly mounted on one side of the electrospray ion source (2); the guide frame (311) is fixedly mounted on a side of a slider (333) close to the guide rail (312); a displacement block (313) is slidably connected inside the guide rail (312); a quick-release linkage frame (314) is fixedly mounted on the front side of the displacement block (313); and the bottom of the quick-release linkage frame (314) is fitted and connected to the inner side of the guide frame (311).

4. The convenient and quick-detachable ion source spray needle according to claim 3, characterized in that: The overall shape of the quick-release linkage frame (314) is set in an arrow shape, the overall shape of the inner end of the guide frame (311) is set in an arc shape, and the bottom inclined surface of the quick-release linkage frame (314) and the arc surface of the inner end of the guide frame (311) are fitted and connected.

5. The convenient and quick-detachable ion source spray needle according to claim 4, characterized in that: A hand-operated handrail (315) is fixedly mounted on the upper end of the quick-release linkage frame (314) on a side away from the electrospray ion source (2), and a hand-operated handrail ball (316) is fixedly connected to the outer end of the hand-operated handrail (315).

6. The convenient and quick-detachable ion source spray needle according to claim 5, characterized in that: The overall cross-sectional shape of the clamping block (335) is in the form of a right-angled trapezoid, and the inclined surface of the clamping block (335) is arranged at the inner end of the bottom.

7. The convenient and quick-detachable ion source spray needle according to claim 3, characterized in that: The spray needle assembly (5) comprises a spray needle joint (51), the spray needle joint (51) is inserted into the inner side of the mounting joint (4), the two sides of the spray needle joint (51) are fixedly connected to the protrusion (332), the bottom of the spray needle joint (51) is provided with a threaded groove (52), the inner side of the threaded groove (52) is threadedly connected to a threaded mounting tube (54), the bottom of the threaded mounting tube (54) is fixedly mounted with a sealing cover (55), and the bottom of the sealing cover (55) is fixedly mounted with a spray needle body (53).

8. The convenient and quick-detachable ion source spray needle according to claim 7, characterized in that: The upper end of the sealing cover (55) is fixedly connected with anti-slip protrusions (56) at equal intervals, and the top of the sealing cover (55) and the top of the spray needle connector (51) are fixedly connected with a sealing gasket, the sealing gasket at the top of the spray needle connector (51) is fitted and connected to the top of the spray needle body (53), and the sealing gasket at the top of the spray needle connector (51) is fitted and connected to the mounting connector (4).

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