Novel flow divider device of liquid chromatography-mass spectrometry combined instrument

Abstract

The invention provides a novel liquid chromatography-mass spectrometry instrument diverter device, which belongs to the technical field of experimental equipment, and comprises a diverting frame, the interior of the diverting frame is hollow, one end of the diverting frame is fixedly connected with a water inlet pipe, and two ends of the other end face of the diverting frame are respectively and fixedly connected with a water outlet frame. The flow dividing frame and the water outlet frame are communicated through water flowing holes, the water flowing holes are arranged in a rectangular shape, a water outlet pipe is fixedly connected to the side wall of the side, away from the flow dividing frame, of the water outlet frame, and a control device is arranged on the inner wall of the side, adjacent to the water outlet frame, of the flow dividing frame so that the flow of materials flowing through the two water flowing holes can be accurately and synchronously adjusted. According to the technology, the flowing-out speed of the materials in the two water outlet pipes can be flexibly adjusted and controlled according to actual requirements, and accurate control over the material distribution process is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of experimental equipment, and in particular to a novel splitter device for liquid chromatography-mass spectrometry instrument. Background Art

[0002] The splitter of the liquid chromatography-mass spectrometer can meet the needs of different liquid system flow rates for application in mass spectrometry technology, and can also be compatible with the flow rate applicable to the mass spectrometry ion source, thereby maximizing the ionization efficiency and meeting the sensitivity requirements.

[0003] At present, many instrument manufacturers produce liquid chromatography-mass spectrometry instruments, and their front-end liquid systems are all equipped with ultra-high performance liquid chromatography (UPLC), and the flow rate of the chromatography and the mass spectrometry are just matched. With the continuous development of chromatography and mass spectrometry technology, more and more research needs to use mass spectrometry technology for analysis, such as unknown impurities found in ordinary liquid chromatography (HPLC) and drug impurity spectrum research. However, the main equipment of pharmaceutical manufacturers is currently ordinary high-performance liquid chromatography, and the flow rate of its method is usually about 1 ml / min, which is incompatible with the flow rate applicable to the mass spectrometry system. Therefore, there is a need for a device that is compatible with the flow rate requirements of ordinary liquid chromatography and mass spectrometry, so as to achieve the versatility and adjustability of the method and meet the analysis requirements of the mass spectrometry method. Summary of the invention

[0004] In order to overcome the shortcomings of the background technology, the purpose of this application is to provide a new type of liquid chromatography-mass spectrometry instrument splitter device, which can flexibly adjust the outflow rate of materials in the two outlet pipes according to actual needs, thereby ensuring precise control of the material distribution process.

[0005] In order to achieve the above objectives, this application provides the following technical solutions: A novel splitter device for a liquid chromatography-mass spectrometry instrument comprises a splitter frame, which is hollow inside, with a water inlet pipe fixedly connected to one end of the splitter frame, and a water outlet frame fixedly connected to both ends of the other end surface of the splitter frame, respectively, the splitter frame and the water outlet frame are connected through a water flow hole, the water flow hole is rectangular, a water outlet pipe is fixedly connected to a side wall of the water outlet frame away from the splitter frame, and a control device for simultaneously controlling materials flowing through the two water flow holes is provided on the inner wall of the splitter frame close to the water outlet frame.

[0006] As a preferred embodiment, the control device includes a diverter plate fixedly connected to the inner wall of one end of the water flow hole, diverter holes evenly spaced on the diverter plate, and a control mechanism arranged on the inner wall of the diverter frame for controlling the opening and closing of the diverter holes on the two diverter plates. The side wall of one side of the diverter plate is flush with the inner wall of the diverter frame, and the diverter holes are arranged in a circular shape. Ten diverter holes are opened on each diverter plate, and the ten diverter holes on the same plate are arranged symmetrically in two rows.

[0007] As a preferred embodiment, the control mechanism includes two control rods fixedly connected to the upper and lower ends of the inner wall of one side of the diverter frame close to the water flow hole, a control groove provided on the opposite surfaces of the two control rods, a control plate slidably connected in the control groove, and a driving member arranged on the diverter frame for controlling the sliding of the control plate in the control groove. The length of the control plate is the distance between the centers of two diverter holes on the same end of the two diverter plates. One side of the control groove is connected to the inner wall of one side of the diverter frame, and the side wall of one side of the control plate abuts against the inner wall of one side of the diverter frame.

[0008] As a preferred embodiment, the driving member includes a driving rod rotatably connected to the upper surface of the diverter frame, a driving gear fixedly connected to the outer wall of the lower end of the driving rod, a driving rack fixedly connected to the side wall of one side of the control panel, and an indicating component arranged at the upper end of the driving rod for indicating the position of the control panel in the control groove. The driving rod is vertically arranged and one end of the driving rod extends into the diverter frame, the driving gear is fixedly connected to the outer wall of one end of the driving rod extending into the diverter frame, the driving rack is horizontally arranged, and the driving gear and the driving rack are meshed.

[0009] As a preferred solution, the indicator assembly includes an indicator rod fixedly connected to the upper surface of the diverter frame, an indicator groove opened on the side wall of one side of the indicator rod, a long rod slidably connected in the indicator groove, an indicator rack fixedly connected to the side wall of one side of the long rod, and an indicator gear fixedly connected to the outer wall of the upper end of the driving rod. The indicator rod is arranged along the length direction of the control panel, the indicator gear is the same size as the driving gear, and the indicator rack is the same length as the control panel and is aligned.

[0010] As a preferred solution, a long groove is opened on the upper surface of the indicator rod, a pointer is fixedly connected to the upper surface of both ends of the long rod, and ten positioning grooves are opened on the inner wall of the long groove away from the driving rod. The length of the positioning groove is the same as the diameter of the diversion hole and the positioning grooves correspond to the diversion holes one by one.

[0011] As a preferred solution, a buffer plate is fixedly connected between the inner walls on both sides of the diverter frame. The buffer plate is arranged in an L shape, the opening of the buffer plate is arranged toward the water inlet pipe, and the angles between the two ends of the buffer plate and the horizontal plane are the same. The distance between the buffer plate and the upper and lower surfaces of the diverter frame are the same. A number of buffer hemispheres are fixedly connected at even intervals on the side wall of the buffer plate close to the water inlet pipe, and the upper and lower ends of the buffer plate are spaced apart from the upper and lower inner walls of the diverter frame.

[0012] As a preferred solution, the upper end of the diverter frame is connected to the outside world, a diverter cover is provided on the upper surface of the diverter frame, a sealing ring is installed on the lower surface of the diverter cover, the outer wall of the sealing ring abuts against the inner wall of the diverter frame, and a plurality of sealing rings are fixedly connected to the outer wall of the sealing ring. The sealing ring is made of rubber and has a triangular cross-section. A locking rod is fixedly connected to the upper surface of the diverter frame, a locking hole is provided on the diverter cover, the locking rod is slidably connected to the locking hole, and a butterfly nut is threadedly connected to the outer wall of one end of the locking rod passing through the locking hole.

[0013] As a preferred embodiment, a plurality of sealing grooves are provided on the upper surface of the diverter frame, the locking groove is connected to the outer wall of the diverter frame, the locking hole is fixedly connected to the lower surface of the inner wall of the sealing groove, a ring is threadedly connected to the outer wall of the locking rod, the ring is located in the locking groove and the lower surface of the ring abuts against the lower surface of the inner wall of the sealing groove, and the upper surface of the ring is flush with the upper surface of the diverter frame.

[0014] As a preferred solution, a vent hole is provided on the upper surface of the diverter cover, the vent hole runs through the upper and lower surfaces of the diverter cover, and a plug is interference-fitted in the vent hole.

[0015] Compared with the prior art, this application has the following advantages: 1. In the present application, a diverter plate is fixed in the water flow hole, and diverter holes are opened on the diverter plate. The diverter holes on the diverter plate are arranged in two rows. The operator drives the control plate to slide in the control groove through the driving member. When one end of the control plate opens the diverter hole on one of the diverter plates, the other end of the control plate blocks the corresponding diverter hole on the other diverter plate. Through such an arrangement, the structure is simple and the operation is convenient, which facilitates the operator to control the speed at which the material flows out of the two water outlet pipes as required.

[0016] 2. In the present application, the operator places the diverter cover on the diverter frame, the sealing ring on the outer wall of the sealing ring abuts against the inner wall of the diverter frame, the end of the sealing ring away from the sealing ring is deformed upward, the diverter cover abuts against the upper surface of the diverter frame, the locking rod slides into the locking hole, and the circular ring is rotated. The circular ring drives the diverter cover to move upward, the diverter cover drives the sealing ring to move upward, the sealing ring drives the sealing ring to move, and the end of the sealing ring away from the sealing ring is deformed downward. With such an arrangement, the structure is simple, the operation is convenient, and the sealing between the diverter cover and the diverter frame is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the present application.

[0019] Figure 3 It is a structural diagram of the indicating component in the embodiment of the present application.

[0020] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0021] Figure 5 It is a cross-sectional view of the diverter cover in the embodiment of the present application.

[0022] In the figure, 1, diverter frame; 2, water inlet pipe; 3, water outlet frame; 4, water flow hole; 5, water outlet pipe; 6, control device; 7, diverter plate; 8, diverter hole; 9, control mechanism; 10, control rod; 11, control groove; 12, control plate; 13, driving member; 14, driving rod; 15, driving gear; 16, driving rack; 17, indicating assembly; 18, indicating rod; 19, indicating groove; 20, long rod; 21, indicating rack; 22, indicating gear; 23, long groove; 24, pointer; 25, positioning groove; 26, buffer plate; 27, buffer hemisphere; 28, diverter cover; 29, sealing ring; 30, sealing ring; 31, locking rod; 32, locking hole; 33, butterfly nut; 34, sealing groove; 35, ring; 36, vent hole; 37, plug. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a novel liquid chromatography-mass spectrometry instrument splitter device includes a splitter frame 1, which is hollow inside and open at the upper end. The splitter frame 1 is arranged in a rectangular shape, and a splitter cover 28 is installed on the upper surface of the splitter frame 1. A vent hole 36 is opened on the upper surface of the splitter cover 28, and the vent hole 36 runs through the upper and lower surfaces of the splitter cover 28. A plug 37 is interference fit in the vent hole 36.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a sealing ring 29 is fixedly connected to the lower surface of the diverter cover 28, and the sealing ring 29 is arranged in a rectangular shape. A plurality of sealing rings 30 are fixedly connected to the outer wall of the sealing ring 29, and the sealing ring 30 is made of rubber. The cross section of the sealing ring 30 is arranged in a triangular shape. The sealing ring 30 is deformed under the action of the inner wall of the diverter frame 1. A plurality of sealing grooves 34 are opened on the upper surface of the diverter frame 1, and one side of the sealing groove 34 is connected to the outer wall of the diverter frame 1. A sealing rod is fixedly connected to the lower surface of the inner wall of the sealing groove 34, and a sealing rod is opened on the diverter cover 28. There is a sealing hole, and the sealing rod is slidably connected in the sealing hole. A ring 35 is threadedly connected on the outer wall of the sealing rod. The lower surface of the ring 35 abuts against the bottom of the sealing groove 34. The upper surface of the ring 35 is flush with the upper surface of the diverter frame 1. A butterfly nut 33 is threadedly connected on the outer wall of one end of the sealing rod passing through the sealing hole. The operator drives the diverter cover 28 upward by rotating the ring 35, and the diverter cover 28 drives the sealing ring 29 to move upward. Under the action of the friction force of the inner wall of the diverter frame 1, the end of the sealing ring 30 away from the sealing ring 29 is set downward.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a water inlet pipe 2 is fixedly connected to one end of the diverter frame 1, and a water outlet frame 3 is fixedly connected to both ends of the end surface of the other end of the diverter frame 1. The diverter frame 1 and the water outlet frame 3 are connected through a water flow hole 4. The water flow hole 4 is arranged in a rectangular shape. A water outlet pipe 5 is fixedly connected to the side wall of the water outlet frame 3 away from the diverter frame 1.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a control mechanism 9 for simultaneously controlling the materials flowing through the two water holes 4 is provided on the inner wall of the diverter frame 1 near the water outlet frame 3, and the control mechanism 9 includes a diverter plate 7, and the diverter plate 7 is fixedly connected to the inner wall of the water hole 4 near the diverter frame 1 at one end, and the side wall of one side of the diverter plate 7 is flush with the inner wall of the diverter frame 1, and ten diverter holes 8 are evenly spaced on the diverter plate 7, and the diverter holes 8 are arranged in a circular shape, and the ten diverter holes 8 are arranged in two rows and aligned up and down, and the diverter holes 8 on the two diverter plates 7 are symmetrically arranged, and a control mechanism 9 is provided on the inner wall of the diverter frame 1, and the control mechanism 9 is used to simultaneously control the opening and closing of the diverter holes 8 on the two diverter plates 7.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the control mechanism 9 includes a control rod 10, which is fixedly connected to the inner wall of the diverter frame 1 on one side near the water flow hole 4. Two control rods 10 are fixedly connected to the inner wall of the diverter frame 1 on one side near the water flow hole 4. The two control rods 10 are arranged up and down and horizontally. A control groove 11 is provided on the opposite surfaces of the two control rods 10. The inner wall of one side of the control groove 11 is connected to the inner wall of the diverter frame 1. A control plate 12 is slidably connected in the control groove 11. The length of the control plate 12 is the distance between the centers of the two diverter holes 8 at the same end of the two diverter plates 7. The thickness of the control plate 12 is the same as the width of the control groove 11. A driving member 13 is provided on the diverter frame 1 for conveniently driving the control plate 12 to slide in the control groove 11.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the driving member 13 includes a driving rod 14, which is rotatably connected to the cover plate, and is vertically arranged. The lower end of the driving rod 14 is located in the diverter frame 1, and a driving gear 15 is fixedly connected to the outer wall of the lower end of the driving rod 14. A driving rack 16 is fixedly connected to the side wall of the control panel 12 away from the diverter hole 8, and the driving rack 16 is horizontally arranged. The driving rack 16 is meshed with the driving gear 15, and an indicating component 17 is provided at the upper end of the driving rod 14. The indicating component 17 is used to conveniently indicate the position of the control panel 12 in the control groove 11.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the indicating assembly 17 includes an indicating rod 18, which is fixedly connected to the upper surface of the diverter cover 28, and is arranged along the length direction of the control panel 12. An indicating groove 19 is opened on one side wall of the indicating rod 18, and a long rod 20 is slidably connected in the indicating groove 19. An indicating rack 21 is fixedly connected to one side wall of the long rod 20, and an indicating gear 22 is fixedly connected to the outer wall of the upper end of the driving rod 14. The indicating rack 21 is meshed with the indicating rack 21, and the indicating gear 22 is the same size as the driving gear 15. The length of the indicating rack 21 is the same as the length of the control panel 12 and is aligned.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, in order to further facilitate the operator to observe the position of the control panel 12 in the control slot 11, a long slot 23 is provided on the upper surface of the indicator rod 18, and the long slot 23 is connected to the indicator slot 19. A pointer 24 is fixedly connected to the upper surface of both ends of the long rod 20, and ten positioning slots 25 are provided on the inner wall of the long slot 23 away from the driving rod 14. The upper end of the positioning slot 25 is connected to the outside world. The length of the positioning slot 25 is the same as the diameter of the diverter hole 8, and the positioning slot 25 corresponds to the diverter hole 8 one by one.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in order to reduce the impact of the material introduced into the water inlet pipe 2 on the material inside the diverter frame 1, a buffer plate 26 is fixedly connected between the inner walls on both sides of the diverter frame 1, and the buffer plate 26 is L-shaped. The lengths of the two ends of the buffer plate 26 are the same, and the opening of the buffer plate 26 is set toward the water inlet pipe 2. The distances between the upper and lower ends of the buffer plate 26 and the horizontal plane where the water inlet pipe 2 is located are the same. The upper and lower ends of the buffer plate 26 are set with a gap between the lower surface of the inner wall of the diverter frame 1 and the lower surface of the diverter cover 28, and a plurality of buffer hemispheres 27 are evenly fixedly connected on the side wall of the buffer plate 26 close to the water inlet pipe 2.

[0033] The working principle of the embodiment of the present application is as follows: the operator sets the flow diversion cover 28 on the flow diversion frame 1, the flow diversion cover 28 abuts on the upper surface of the flow diversion frame 1, the sealing ring 30 on the sealing ring 29 abuts on the inner wall of the flow diversion frame 1, and the end of the sealing ring 30 away from the sealing ring 29 is deformed upward, and the circular ring 35 is rotated, and the circular ring 35 drives the flow diversion cover 28 to move upward, the flow diversion cover 28 drives the sealing ring 29 to move upward, and the sealing ring 29 drives the sealing ring 30 to move, and the end of the sealing ring 30 away from the sealing ring 29 is deformed downward; The operator adjusts the position of the control plate 12 in the control groove 11 as needed, rotates the driving rod 14, and the driving rod 14 drives the driving gear 15 to move. The driving gear 15 drives the control plate 12 to move through the driving rack 16. One end of the control plate 12 opens the diversion hole 8 on the diversion plate 7 while the other end of the control plate 12 blocks the diversion hole 8 on the other diversion plate 7. The operator can control the flow rate of the materials in the two outlet pipes 5 at the same time.

[0034] When the operator drives the driving gear 15 to rotate through the driving rod 14, the driving rod 14 drives the indicating gear 22 to rotate, the indicating gear 22 drives the indicating rack 21 to move, the indicating rack 21 drives the long rod 20 to slide in the indicating groove 19, and the pointers 24 at both ends of the long rod 20 indicate the position of the control panel 12 in the control groove 11.

[0035] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0036] The above is a detailed introduction to the one provided by the present application. Specific examples are used herein to illustrate the principle and implementation method of the present application, and the description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A novel liquid chromatography-mass spectrometry instrument splitter device, characterized in that: The invention comprises a flow dividing frame (1), the interior of the flow dividing frame (1) is hollow, a water inlet pipe (2) is fixedly connected to one end of the flow dividing frame (1), a water outlet frame (3) is fixedly connected to the two ends of the end surface of the other end of the flow dividing frame (1), the flow dividing frame (1) and the water outlet frame (3) are connected through a water flow hole (4), the water flow hole (4) is rectangular, a water outlet pipe (5) is fixedly connected to the side wall of the water outlet frame (3) away from the flow dividing frame (1), and a control device (6) for simultaneously controlling the two water flow holes (4) to flow materials through is provided on the inner wall of the flow dividing frame (1) close to the water outlet frame (3).

2. The flow divider device according to claim 1, characterized in that: The control device (6) comprises a diverter plate (7) fixedly connected to the inner wall of one end of the water flow hole (4), diverter holes (8) evenly spaced on the diverter plate (7), and a control mechanism (9) arranged on the inner wall of the diverter frame (1) for controlling the opening and closing of the diverter holes (8) on the two diverter plates (7), wherein the side wall of one side of the diverter plate (7) is flush with the inner wall of the diverter frame (1), the diverter holes (8) are arranged in a circular shape, and ten diverter holes (8) are arranged on each diverter plate (7), and the ten diverter holes (8) on the same diverter plate are arranged symmetrically in two rows.

3. The flow divider device according to claim 2, characterized in that: The control mechanism (9) comprises two control rods (10) fixedly connected to the upper and lower ends of the inner wall of one side of the diverter frame (1) close to the water flow hole (4), a control groove (11) provided on the opposite surfaces of the two control rods (10), a control plate (12) slidably connected in the control groove (11), and a driving member (13) provided on the diverter frame (1) for controlling the control plate (12) to slide in the control groove (11), wherein the length of the control plate (12) is the distance between the centers of two diverter holes (8) on the same end of the two diverter plates (7), one side of the control groove (11) is connected to the inner wall of one side of the diverter frame (1), and the side wall of one side of the control plate (12) abuts against the inner wall of one side of the diverter frame (1).

4. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 3, characterized in that: The driving member (13) comprises a driving rod (14) rotatably connected to the upper surface of the diverter frame (1), a driving gear (15) fixedly connected to the outer wall of the lower end of the driving rod (14), a driving rack (16) fixedly connected to the side wall of one side of the control panel (12), and an indicating assembly (17) arranged at the upper end of the driving rod (14) for indicating the position of the control panel (12) in the control groove (11); the driving rod (14) is arranged vertically and one end of the driving rod (14) extends into the diverter frame (1); the driving gear (15) is fixedly connected to the outer wall of one end of the driving rod (14) extending into the diverter frame (1); the driving rack (16) is arranged horizontally, and the driving gear (15) and the driving rack (16) are meshed.

5. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 4, characterized in that: The indicating assembly (17) comprises an indicating rod (18) fixedly connected to the upper surface of the diverter frame (1), an indicating groove (19) provided on a side wall of one side of the indicating rod (18), a long rod (20) slidably connected to the indicating groove (19), an indicating rack (21) fixedly connected to a side wall of one side of the long rod (20), and an indicating gear (22) fixedly connected to the outer wall of the upper end of the driving rod (14); the indicating rod (18) is arranged along the length direction of the control panel (12); the indicating gear (22) is the same size as the driving gear (15); and the indicating rack (21) is the same length as the control panel (12) and is aligned with the indicating rack (21).

6. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 5, characterized in that: A long groove (23) is provided on the upper surface of the indicating rod (18), a pointer (24) is fixedly connected to the upper surfaces of both ends of the long rod (20), and ten positioning grooves (25) are provided on the inner wall of the long groove (23) on a side away from the driving rod (14), the length of the positioning grooves (25) being the same as the diameter of the diverter hole (8), and the positioning grooves (25) and the diverter holes (8) are in one-to-one correspondence.

7. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 6, characterized in that: A buffer plate (26) is fixedly connected between the inner walls on both sides of the diverter frame (1); the buffer plate (26) is arranged in an L shape; the opening of the buffer plate (26) is arranged toward the water inlet pipe (2); the angles between the two ends of the buffer plate (26) and the horizontal plane are the same; the distances between the buffer plate (26) and the upper and lower surfaces of the diverter frame (1) are the same; a plurality of buffer hemispheres (27) are fixedly connected at even intervals on the side wall of the buffer plate (26) close to the water inlet pipe (2); and the upper and lower ends of the buffer plate (26) are arranged at intervals from the upper and lower inner walls of the diverter frame (1).

8. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 7, characterized in that: The upper end of the diverter frame (1) is communicated with the outside world. A diverter cover (28) is provided on the upper surface of the diverter frame (1). A sealing ring (29) is installed on the lower surface of the diverter cover (28). The outer wall of the sealing ring (29) abuts against the inner wall of the diverter frame (1). A plurality of sealing rings (30) are fixedly connected to the outer wall of the sealing ring (29). The sealing rings (30) are made of rubber and have a triangular cross-section. A locking rod (31) is fixedly connected to the upper surface of the diverter frame (1). A locking hole (32) is provided on the diverter cover (28). The locking rod (31) is slidably connected to the locking hole (32). A butterfly nut (33) is threadedly connected to the outer wall of one end of the locking rod (31) passing through the locking hole (32).

9. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 8, characterized in that: A plurality of sealing grooves (34) are provided on the upper surface of the diverter frame (1); the locking grooves are communicated with the outer wall of the diverter frame (1); the locking holes (32) are fixedly connected to the lower surface of the inner wall of the sealing grooves (34); a circular ring (35) is threadedly connected to the outer wall of the locking rod (31); the circular ring (35) is located in the locking groove and the lower surface of the circular ring (35) abuts against the lower surface of the inner wall of the sealing groove (34); and the upper surface of the circular ring (35) is flush with the upper surface of the diverter frame (1).

10. A novel liquid chromatography-mass spectrometry instrument splitter device according to claim 9, characterized in that: A vent hole (36) is provided on the upper surface of the flow dividing cover (28), the vent hole (36) runs through the upper and lower surfaces of the flow dividing cover (28), and a plug (37) is interference-fitted in the vent hole (36).

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