Guide rail moving mechanism

Abstract

The utility model discloses a guide rail moving mechanism which comprises a protective shell, a cutting cone is arranged on the left side of the protective shell, a Q0 pole rod is arranged in the protective shell, a vacuum cavity is formed in the protective shell, a normal-pressure environment is arranged in the protective shell, and a fine adjustment mechanism is arranged on the inner wall of the normal-pressure environment. A fixing plate is fixedly connected to the right wall of the protective shell, the sliding rod is fixedly connected to the right wall of the mounting plate, and the sliding rod is slidably connected to the inner wall of the fixing plate. The guide rail is moved through the fine adjustment mechanism, the distance between the interception cone and the Q0 pole rod can be adjusted without disassembling the reconnection ion guide rod, the inner side and the outer side of a vacuum system are isolated through the corrugated pipe, the telescopic characteristic of the corrugated pipe is fully used, the problem of discharging between the interception cone and the Q0 pole rod of the triple quadrupole mass spectrometer is solved, and the mass spectrometer quality is improved. The optimization of the distance between the pole rods of the interception cone Q0 is realized, so that the performance of the mass spectrometer is improved.

Description

Technical Field

[0001] The utility model relates to the field of mobile technology, in particular to a guide rail moving mechanism. Background Art

[0002] Linear guides are used to support and guide moving parts to perform reciprocating linear motion in a given direction.

[0003] When applying for the present invention, the applicant found through searching that a Chinese patent disclosed "an ion guide rod and detection device", and its application number is "202222599950.3". The patent mainly uses a support column; and a tip tube, which is arranged on the support column; wherein an adjustment tube is arranged between the support column and the tip tube, and the adjustment tube is sleeved on the outer periphery of the support column, and different adjustment tubes have different lengths. The performance of the mass spectrometer is structurally optimized, and the difference between units in the production and assembly process is reduced. At the same time, the length adjustment of the ion guide rod can be completed in the vacuum chamber without removing the ion optical guide rail, which greatly simplifies the adjustment process and improves the installation efficiency. However, the device measures the demand according to the needs, and then disassembles and connects the ion guide rod according to the needs. If there are multiple ion guide rods and they are already in the machine, it is very troublesome to disassemble them. Utility Model Content

[0004] The utility model provides a mechanism for moving a guide rail. The guide rail is moved by a fine-tuning mechanism. The distance between the skimmer cone and the Q0 pole can be adjusted without disassembling and reconnecting the ion guide rod. The inner and outer sides of the vacuum system are isolated by a bellows, and the telescopic characteristics of the bellows are fully utilized to solve the problem of discharge between the skimmer cone and the Q0 pole of a triple quadrupole mass spectrometer, thereby optimizing the distance between the skimmer cone and the Q0 pole, thereby improving the performance of the mass spectrometer.

[0005] In order to achieve the above-mentioned purpose, a mechanism for moving a guide rail is provided, comprising a protective shell, a skimmer cone is arranged on the left side of the protective shell, a Q0 pole is arranged inside the protective shell, a vacuum chamber is arranged inside the protective shell, a normal pressure environment is arranged inside the protective shell, a fine-tuning mechanism is arranged on the inner wall of the normal pressure environment, and a fixed plate is fixedly connected to the right wall of the protective shell. The guide rail is moved by the fine-tuning mechanism, and the distance between the skimmer cone and the Q0 pole can be adjusted without disassembling and reconnecting the ion guide rod. The inner and outer isolation of the vacuum system is achieved by using a bellows, and the telescopic characteristics of the bellows are fully utilized, so as to solve the problem of discharge between the skimmer cone and the Q0 pole of the triple quadrupole mass spectrometer, and optimize the distance between the skimmer cone and the Q0 pole, thereby improving the performance of the mass spectrometer.

[0006] According to the mechanism for moving the guide rail, the normal pressure environment includes a bellows, a mounting plate, and a guide rod, the bellows is fixedly connected to the right wall of the mounting plate, the bellows is fixedly connected to the left wall of the fixed plate, the mounting plate is slidably connected to the inner wall of the protective shell, the guide rod is fixedly connected to the inner wall of the mounting plate, the bellows is movably connected to the outer wall of the telescopic column, the telescopic column is fixedly connected to the right wall of the mounting plate, and the telescopic column is fixedly connected to the left wall of the fixed plate. The mounting plate separates the protective shell into a vacuum environment and a normal pressure environment, and the distance between the intercepting cone Q0 poles is adjusted by the change of the normal pressure environment, and the bellows changes its length according to the change of the telescopic column.

[0007] According to the guide rail movement mechanism, the sliding rod is fixedly connected to the right wall of the mounting plate, and the fixing block is slidably connected to the outer wall of the sliding rod. The fixing block limits the sliding rod to only the left and right automatic directions.

[0008] According to the guide rail movement mechanism, the first ring is fixedly connected to the back of the fixed block, the first support frame is fixedly connected to the front of the first ring, and the first gear is fixedly connected to the outer wall of the first support frame. The inner side of the first ring is in a cross shape to increase the stability of the device, and the inner wall of the first gear is in a gear shape to facilitate meshing transmission with the second gear.

[0009] According to the guide rail movement mechanism, the first gear meshes with the outer wall of the second gear, the second support frame is rotatably connected to the inner wall of the second gear, and the second ring is fixedly connected to the back of the second support frame. Since the second gear and the second support frame are rotatably connected, the second gear rotates eccentrically with the rotation of the second ring, and the outer wall of the second gear is gear-shaped and meshes with the inner wall of the first gear for transmission.

[0010] According to the guide rail movement mechanism, the third support frame is fixedly connected to the front of the second gear, the sliding rod is rotatably connected to the outer wall of the third support frame, and the fourth support frame is fixedly connected to the outer wall of the first ring. The eccentric rotation of the second gear drives the movement of the sliding rod, and because of the fixation of the fixed block and the movable connection between the sliding rod and the third support frame, the sliding rod can achieve the effect of horizontal movement left and right.

[0011] According to the mechanism for moving the guide rail, the rotating shaft is rotatably connected to the inner wall of the first ring, the rotating shaft is fixedly connected to the back of the second ring, the motor is fixedly connected to the back of the rotating shaft, and the motor is fixedly connected to the upper surface of the fifth support frame. The fourth support frame and the fifth support frame increase the stability of the device, and the fine-tuning mechanism is driven by the operation of the motor.

[0012] The beneficial effects of the utility model are as follows: the guide rail is moved by a fine-tuning mechanism, and the distance between the skimmer cone and the Q0 pole can be adjusted without disassembling and reconnecting the ion guide rod. The inner and outer sides of the vacuum system are isolated by a bellows, and the telescopic characteristics of the bellows are fully utilized to solve the problem of discharge between the skimmer cone and the Q0 pole of a triple quadrupole mass spectrometer, thereby optimizing the distance between the skimmer cone and the Q0 pole, thereby improving the performance of the mass spectrometer.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 It is a three-dimensional diagram of a guide rail movement mechanism of the utility model;

[0016] Figure 2 This is an internal structure diagram of a guide rail movement mechanism of the utility model;

[0017] Figure 3 It is an enlarged view of the fine adjustment mechanism of a guide rail moving mechanism of the utility model;

[0018] Figure 4 This is a rear view of a fine-tuning mechanism of a guide rail moving mechanism of the utility model;

[0019] Figure 5 The present invention is a structural diagram of an existing device for solving the technical problem mentioned in the background technology.

[0020] Legend:

[0021] 1. Protective shell; 2. Fine-tuning mechanism; 3. Cutting cone; 4. Q0 pole; 5. Vacuum chamber; 6. Normal pressure environment; 7. Fixed plate; 21. Sliding rod; 22. Fixed block; 23. First ring; 24. First support frame; 25. First gear; 26. Second gear; 27. Second support frame; 28. Second ring; 29. ​​Third support frame; 61. Bellows; 62. Mounting plate; 63. Guide rod; 64. Telescopic column; 210. Fourth support frame; 211. Fifth support frame; 212. Motor; 213. Rotating shaft. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Embodiment 1:

[0024] Reference Figures 1 to 4 The utility model embodiment is a guide rail moving mechanism, which includes a protective shell 1, a cutting cone 3 is arranged on the left side of the protective shell 1, a Q0 pole 4 is arranged inside the protective shell 1, a vacuum chamber 5 is arranged inside the protective shell 1, a normal pressure environment 6 is arranged inside the protective shell 1, a fine adjustment mechanism 2 is arranged on the inner wall of the normal pressure environment 6, a fixing plate 7 is fixedly connected to the right wall of the protective shell 1, a bellows 61 is fixedly connected to the right wall of the mounting plate 62, the bellows 61 is fixedly connected to the left wall of the fixing plate 7, the mounting plate 62 is slidably connected to the inner wall of the protective shell 1, a guide rod 63 is fixedly connected to the inner wall of the mounting plate 62, and the bellows 61 is movably connected to the outer wall of the telescopic column 64. A protective shell can be added to the outer side of the fine adjustment mechanism 2 to prevent accidental contact or dust from falling.

[0025] The telescopic column 64 is fixedly connected to the right wall of the mounting plate 62, the telescopic column 64 is fixedly connected to the left wall of the fixing plate 7, the sliding rod 21 is fixedly connected to the right wall of the mounting plate 62, the fixing block 22 is slidably connected to the outer wall of the sliding rod 21, the first ring 23 is fixedly connected to the back of the fixing block 22, the first support frame 24 is fixedly connected to the front of the first ring 23, the first gear 25 is fixedly connected to the outer wall of the first support frame 24, the first gear 25 is meshed with the outer wall of the second gear 26, the second support frame 27 is rotatably connected to the inner wall of the second gear 26, and the second ring 28 is fixedly connected to the back of the second support frame 27. Graduations can be added to the rod of the sliding rod 21 to facilitate understanding of fine-tuning the specific distance and increase the stability of tool use.

[0026] The third support frame 29 is fixedly connected to the front of the second gear 26, the sliding rod 21 is rotatably connected to the outer wall of the third support frame 29, the fourth support frame 210 is fixedly connected to the outer wall of the first ring 23, the rotating shaft 213 is rotatably connected to the inner wall of the first ring 23, the rotating shaft 213 is fixedly connected to the back of the second ring 28, the motor 212 is fixedly connected to the back of the rotating shaft 213, and the motor 212 is fixedly connected to the upper surface of the fifth support frame 211. A controller is added to control the motor to start, stop, or run forward and reverse to fine-tune the distance.

[0027] Embodiment 2:

[0028] Reference Figure 2 : The existing patent embodiment "an ion guide rod and detection device" includes a support column, a tip tube, and an adjustment tube.

[0029] Conclusion: In Example 1, the distance between the skimmer cone and the Q0 pole can be adjusted by moving the guide rail using a fine-tuning mechanism without disassembling and reconnecting the ion guide rod. The bellows is used to achieve isolation between the inside and outside of the vacuum system, and the telescopic characteristics of the bellows are fully utilized to solve the problem of discharge between the skimmer cone and the Q0 pole of the triple quadrupole mass spectrometer, and the distance between the skimmer cone and the Q0 pole is optimized, thereby improving the performance of the mass spectrometer. In Example 2, the performance of the mass spectrometer is structurally optimized, and the differences between units in the production and assembly process are reduced. At the same time, the length can be adjusted by disassembling and connecting the ion optical guide rail, which simplifies the adjustment process. However, the technical effect of adjusting the distance between the ion guide rod and the skimmer cone in the vacuum chamber without disassembly in Example 1 is not achieved.

[0030] Working principle: the staff starts the motor 212 to make the rotating shaft 213 start to rotate, and the rotation of the rotating shaft 213 drives the rotation of the second ring 28, and the second support frame 27 rotates with the second ring 28. The second support frame 27 drives the second gear 26 to rotate eccentrically with the rotation of the second ring 28, and the second gear 26 is rotatably connected to the second support frame 27, so that the second gear 26 and the inner wall of the first gear 25 are meshed and transmitted, and the third support frame 29 is rotatably connected to the sliding rod 21, driving the sliding rod 21 to change, but because the fixed block 22 is fixed to the front side of the first ring 23, the sliding rod 21 is restricted to move left and right, and the left and right movement of the sliding rod 21 drives the mounting plate 62 to start moving, thereby changing the distance between the intercepting cone and Q0, solving the problem of discharge between the intercepting cone and the Q0 pole of the triple quadrupole mass spectrometer, thereby improving the performance of the mass spectrometer.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A guide rail movement mechanism, comprising a protective shell (1), characterized in that: A cutting cone (3) is arranged on the left side of the protective shell (1), a Q0 pole (4) is arranged inside the protective shell (1), a vacuum chamber (5) is arranged inside the protective shell (1), a normal pressure environment (6) is arranged inside the protective shell (1), a fine adjustment mechanism (2) is arranged on the inner wall of the normal pressure environment (6), and a fixing plate (7) is fixedly connected to the right wall of the protective shell (1).

2. A guide rail movement mechanism according to claim 1, characterized in that: The normal pressure environment (6) comprises a bellows (61), a mounting plate (62), and a guide rod (63); the bellows (61) is fixedly connected to the right wall of the mounting plate (62); the bellows (61) is fixedly connected to the left wall of the fixing plate (7); the mounting plate (62) is slidably connected to the inner wall of the protective shell (1); the guide rod (63) is fixedly connected to the inner wall of the mounting plate (62); the bellows (61) is movably connected to the outer wall of the telescopic column (64); the telescopic column (64) is fixedly connected to the right wall of the mounting plate (62); and the telescopic column (64) is fixedly connected to the left wall of the fixing plate (7).

3. A guide rail movement mechanism according to claim 1, characterized in that: The fine adjustment mechanism (2) comprises a sliding rod (21), a fixing block (22), a first circular ring (23), a first support frame (24), a first gear (25), a second gear (26), a second support frame (27), a second circular ring (28), a third support frame (29), a fourth support frame (210), a fifth support frame (211), a motor (212), and a rotating shaft (213); the sliding rod (21) is fixedly connected to the right wall of the mounting plate (62); and the fixing block (22) is slidably connected to the outer wall of the sliding rod (21).

4. A guide rail movement mechanism according to claim 3, characterized in that: The first circular ring (23) is fixedly connected to the back side of the fixed block (22), the first support frame (24) is fixedly connected to the front side of the first circular ring (23), and the first gear (25) is fixedly connected to the outer wall of the first support frame (24).

5. The guide rail movement mechanism according to claim 3, characterized in that: The first gear (25) is meshed with the outer wall of the second gear (26), the second support frame (27) is rotatably connected to the inner wall of the second gear (26), and the second ring (28) is fixedly connected to the back side of the second support frame (27).

6. A guide rail movement mechanism according to claim 3, characterized in that: The third support frame (29) is fixedly connected to the front side of the second gear (26), the sliding rod (21) is rotatably connected to the outer wall of the third support frame (29), and the fourth support frame (210) is fixedly connected to the outer wall of the first ring (23).

7. The guide rail movement mechanism according to claim 3, characterized in that: The rotating shaft (213) is rotatably connected to the inner wall of the first ring (23), the rotating shaft (213) is fixedly connected to the back of the second ring (28), the motor (212) is fixedly connected to the back of the rotating shaft (213), and the motor (212) is fixedly connected to the upper surface of the fifth support frame (211).

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