Collector for gas chromatograph

Abstract

The utility model discloses a collector for a gas chromatograph, which comprises a fixing frame and is characterized in that a connecting pipe is arranged on the inner side of the fixing frame, one end of the connecting pipe is connected with a quick-change device, the quick-change device comprises an inserting pipe, a threaded plate, a push spring, a sliding groove, a sliding block, a sliding plate, a side pressing plate, a clamping block and a clamping plate, the threaded plate is arranged on the outer side of the connecting pipe, and the push spring is arranged on the inner side of the connecting pipe. The side pressing plate is connected with the sliding block through the push spring, the sliding plate is installed in the sliding groove, the clamping plate is arranged on one side of the clamping block, and the protection mechanism is arranged on the outer side of the insertion pipe and comprises a sealing sleeve, a threaded rod, a driven wheel, a through groove, a push plate, a threaded sleeve, a driving wheel, a connecting rod, a rotating sleeve and a push sleeve. The threaded rod is arranged in the threaded sleeve, the through groove is formed in the side wall of the connecting pipe, the push plate is connected with the push sleeve through the connecting rod, the driving wheel is meshed with the driven wheel, and an adjusting device is arranged on one side of the fixing frame.

Description

Technical Field

[0001] The utility model relates to the technical field of collectors for gas chromatographs, and more specifically, it relates to a collector for a gas chromatograph. Background Art

[0002] In the existing technology of collectors for gas chromatographs, there are some limitations and deficiencies, which may affect the performance and efficiency of gas chromatographs. First of all, the suction nozzles of many collectors for gas chromatographs are designed as fixed structures, lacking the function of flexibly adjusting the angle of the suction nozzles. This fixed-angle design may not be suitable for all experimental requirements. Especially when it is necessary to adjust for different samples or different analysis conditions, the fixed suction nozzle angle may lead to low collection efficiency.

[0003] Secondly, the installation and disassembly operations of the suction nozzles of existing collectors for gas chromatographs are usually rather cumbersome and lack convenience. Such a cumbersome operation process may result in the inability to quickly replace suction nozzles of different specifications and models, thus restricting the adaptability and flexibility of gas chromatographs. In some experiments, it may be necessary to replace different types of suction nozzles according to different analysis requirements, such as suction nozzles with different inner diameters, different lengths or different materials. If they cannot be replaced quickly, it will affect the continuity and efficiency of the experiment.

[0004] In addition, although some collectors for gas chromatographs are designed with mechanisms for quickly replacing suction nozzles, the structures of these mechanisms are usually relatively simple and may neglect the sealing performance at the connection. The sealing performance at the connection is crucial for ensuring the integrity of the sample and avoiding sample contamination. If the connection cannot provide sufficient sealing, it may lead to sample leakage or entry of external contaminants, thus affecting the accuracy and reliability of the analysis results. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the problems existing in the prior art, the utility model provides a collector for a gas chromatograph to solve the technical problems mentioned in the background art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solution: A collector for a gas chromatograph, including a fixing frame, characterized in that: a connecting pipe is provided inside the fixing frame, one end of the connecting pipe is connected with a quick-change device, the quick-change device includes an insertion pipe, a threaded plate, a push spring, a sliding groove, a sliding block, a sliding plate, a side pressing plate, a clamping block and a clamping plate, one end of the insertion pipe is inserted into the connecting pipe, the threaded plate is detachably installed on the outer side of the connecting pipe through threads, the side pressing plate is connected with the sliding block through the push spring, the sliding groove is opened inside the connecting pipe, the sliding block is connected with the sliding plate, the sliding plate is slidably installed in the sliding groove, the clamping plate is fixedly connected to one side of the side pressing plate, the clamping block is fixedly connected to the outer side of the insertion pipe, and the clamping block is designed with a conical structure. A protection mechanism is arranged on the outer side of the insertion pipe, the protection mechanism includes a sealing sleeve, a threaded rod, a driven wheel, a through groove, a push plate, a threaded sleeve, a driving wheel, a connecting rod, a rotating sleeve and a push sleeve, the sealing sleeve is detachably installed in the connecting pipe, the threaded rod is fixedly connected to one side of the push plate, the driven wheel is fixedly connected to the outer side of the threaded sleeve, the through groove is opened on the side wall of the connecting pipe, the push plate is connected with the push sleeve through the connecting rod, the connecting rod is slidably installed in the through groove, the threaded sleeve is movably installed on the outer side of the connecting pipe, the driving wheel is fixedly connected to one side of the rotating sleeve, and the driving wheel and the driven wheel are engaged, the rotating sleeve is movably sleeved on the outer side of the connecting pipe, the push sleeve is movably installed in the connecting pipe, and an adjusting device is arranged on one side of the fixing frame.

[0009] The present utility model is further arranged such that both the sliding groove and the sliding plate are designed with an inclined structure.

[0010] The present utility model is further arranged such that a matching block is provided on one side of the sliding block, a matching groove is opened on one side of the push sleeve, and the matching block is slidably installed in the matching groove.

[0011] The present utility model is further arranged such that a sealing ring is opened on the outer side of the insertion pipe, and a sealing groove is opened on the inner side of the connecting pipe.

[0012] The present utility model is further arranged such that the adjusting device includes a suction nozzle, a mounting seat, a first screw rod, a first screw sleeve and a connecting frame, the first screw rod is movably installed in the first screw sleeve through threads, the first screw sleeve is fixedly connected to both sides of the connecting frame, the connecting frame is arranged on one side of the fixing frame, and the setting of the adjusting device realizes the adjustment of the longitudinal angle of the suction nozzle.

[0013] The present utility model is further arranged such that a movable frame is provided on one side of the connecting frame, the movable frame is movably connected with the connecting frame, a connecting seat is provided on one side of the movable frame, and the connecting seat is detachably installed on one side of the fixing frame.

[0014] The utility model is further configured such that a second screw is provided above the movable frame, a second screw sleeve is provided on the other side of the movable frame, the second screw passes through the movable frame and the connecting seat and is detachably connected to the second screw sleeve by a thread, and the design of the above components realizes the adjustment of the lateral angle of the suction nozzle.

[0015] The utility model is further configured such that a knob is provided on one side of the first screw sleeve and the second screw sleeve, and the knob is respectively fixedly connected to one end of the second screw sleeve of the first screw sleeve, and the setting of the knob facilitates the use of the first screw sleeve and the second screw sleeve.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a collector for a gas chromatograph, which has the following beneficial effects:

[0018] 1. Beneficial effects of the adjusting device: The adjusting device realizes flexible adjustment of the angle of the suction nozzle through the design of the first screw, the first screw sleeve, the connecting frame, the movable frame, the connecting seat, the second screw and the second screw sleeve. The operator can turn the first screw sleeve and the second screw sleeve through the knob to release or press the connecting frame and the movable frame to adjust the longitudinal and lateral angles of the suction nozzle. This design allows the suction nozzle to be quickly and accurately adjusted according to the needs of sample collection, thereby improving the convenience of operation and the efficiency of sample collection.

[0019] 2. Beneficial effects of the quick-change device: The quick-change device realizes the rapid replacement of the suction nozzle through the cooperation of the insertion tube, threaded plate, push spring, sliding groove, sliding block, side pressure plate and other components. The rotation of the rotating sleeve drives a series of components to move along the sliding groove, thereby releasing or pressing the card block to realize the rapid removal or insertion of the insertion tube. This design greatly simplifies the replacement process of the suction nozzle and improves the flexibility and efficiency of the experiment. It is especially suitable for occasions where the suction nozzle needs to be replaced frequently.

[0020] 3. Beneficial effects of the protective mechanism: The protective mechanism ensures a high degree of sealing at the joint between the insertion tube and the connecting tube through components such as a sealing sleeve, a threaded rod, a driven wheel, a through groove, and a push plate. When replacing the suction nozzle, the protective mechanism can maintain the sealing of the joint to prevent sample leakage or the entry of external contaminants, thereby ensuring the accuracy and reliability of the analysis results. At the same time, the design of the sealing ring and the sealing groove further strengthens the sealing strength of the joint, thereby ensuring the stability and safety of the gas chromatograph during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a collector for a gas chromatograph in the utility model;

[0022] Figure 2It is a schematic structural diagram of the adjustment device part in the present utility model;

[0023] Figure 3 It is a schematic structural diagram of the quick-change device and the sealing mechanism parts in the present utility model;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the quick-change device and the sealing mechanism parts in the present utility model;

[0025] Figure 5 is Figure 4 a partial enlarged structural diagram at position A in

[0026] Figure 6 is Figure 4 a partial enlarged structural diagram at position B in

[0027] Figure 7 It is a schematic separated structural diagram of the sliding block and the push sleeve parts in the present utility model.

[0028] In the figure: 1, fixed frame; 2, connecting pipe; 3, insertion pipe; 4, threaded plate; 5, push spring; 6, sliding groove; 7, sliding block; 8, sliding plate; 9, side pressing plate; 10, clamping block; 11, clamping plate; 12, sealing sleeve; 13, threaded rod; 14, driven wheel; 15, through groove; 16, push plate; 17, threaded sleeve; 18, driving wheel; 19, connecting rod; 20, rotating sleeve; 21, push sleeve; 22, fitting block; 23, fitting groove; 24, sealing ring; 25, sealing groove; 26, suction nozzle; 27, first screw; 28, first screw sleeve; 29, connecting frame; 30, movable frame; 31, connecting seat; 32, second screw; 33, second screw sleeve; 34, knob; 40, mounting seat. Detailed implementation manners

[0029] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0031] In the present utility model, unless otherwise stated, the orientations such as "up, down" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to inside and outside the contours of each component itself, but the above orientation terms are not used to limit the present utility model.

[0032] Please refer toFigures 1-7 , A collector for a gas chromatograph, comprising a fixing frame 1, characterized in that: a connecting pipe 2 is provided inside the fixing frame 1, one end of the connecting pipe 2 is connected with a quick-change device, and the quick-change device includes an insertion pipe 3, a threaded plate 4, a push spring 5, a sliding groove 6, a sliding block 7, a sliding plate 8, a side pressing plate 9, a clamping block 10 and a clamping plate 11. One end of the insertion pipe 3 is inserted into the connecting pipe 2, the threaded plate 4 is detachably installed on the outer side of the connecting pipe 2 through threads, the side pressing plate 9 is connected with the sliding block 7 through a push spring 405, the sliding groove 6 is opened inside the connecting pipe 2, the sliding block 7 is connected with the sliding plate 8, the sliding plate 8 is slidably installed in the sliding groove 6, the clamping plate 11 is fixedly connected to one side of the side pressing plate 9, the clamping block 10 is fixedly connected to the outer side of the insertion pipe 3, and the clamping block 10 is designed as a conical structure. A protection mechanism is arranged on the outer side of the insertion pipe 3, and the protection mechanism includes a sealing sleeve 12, a threaded rod 13, a driven wheel 14, a through groove 15, a push plate 16, a threaded sleeve 17, a driving wheel 18, a connecting rod 19, a rotating sleeve 20 and a push sleeve 21. The sealing sleeve 12 is detachably installed in the connecting pipe 2, the threaded rod 13 is fixedly connected to one side of the push plate 16, the driven wheel 14 is fixedly connected to the outer side of the threaded sleeve 17, the through groove 15 is opened on the side wall of the connecting pipe 2, the push plate 16 is connected with the push sleeve 21 through the connecting rod 19, the connecting rod 19 is slidably installed in the through groove 15, the threaded sleeve 17 is movably installed on the outer side of the connecting pipe 2, the driving wheel 18 is fixedly connected to one side of the rotating sleeve 20, and the driving wheel 18 meshes with the driven wheel 14. The rotating sleeve 20 is movably sleeved on the outer side of the connecting pipe 2, the push sleeve 21 is movably installed in the connecting pipe 2, and an adjusting device is arranged on one side of the fixing frame 1.

[0033] Both the sliding groove 6 and the sliding plate 8 are designed as inclined structures.

[0034] A fitting block 22 is provided on one side of the sliding block 7, and a fitting groove 23 is opened on one side of the push sleeve 21. The fitting block 22 is slidably installed in the fitting groove 23.

[0035] A sealing ring 24 is opened on the outer side of the insertion pipe 3, and a sealing groove 25 is opened on the inner side of the connecting pipe 2.

[0036] In this embodiment, when the suction nozzle 26 needs to be replaced, first rotate the rotating sleeve 20. The rotating sleeve 20 drives the driving wheel 18 to rotate. Then the driving wheel 18 drives the driven wheel 14 to rotate. Then the driven wheel 14 drives the threaded sleeve 17 to rotate. Since the threaded rod 13 and the threaded sleeve 17 are movably connected by threads, and one end of the threaded rod 13 is fixedly connected to the push plate 16, then the threaded rod 13 will slide along the threaded sleeve 17 and drive the push plate 16 to move. Then the push plate 16 drives the connecting rod 19 to slide along the through groove 15, and the connecting rod 19 drives the push sleeve 21 to slide. The push sleeve 21 drives the sliding block 7 to move through the cooperation of the mating block 22 and the mating groove 23. Then the sliding block 7 drives the sliding plate 8 to slide along the sliding groove 6. Due to the inclined structure design of the sliding block 7 and the sliding groove 6, when the sliding plate 8 slides along the sliding groove 6, the sliding plate 8 drives the sliding block 7 to spread outwards. At the same time, the sliding block 7 drives the mating block 22 to slide along the mating groove 23. Then the sliding block 7 drives the push spring 5 and the side pressing plate 9 to move outwards, so that the side pressing plate 9 no longer presses against the side wall of the clamping block 10, and at the same time, the clamping plate 11 no longer presses the clamping block 10 tightly. Then the insertion tube 3 is directly pulled out. Then the first screw sleeve 28 and the first screw rod 27 at the connection between the mounting seat 40 and the connecting frame 29 are removed. Then the suction nozzle 26 is removed. Then, referring to the above steps, a new suction nozzle 26 is replaced. The insertion tube 3 is inserted into the connecting tube 2. Then the mounting seat 40 and the connecting frame 29 are reconnected together through the first screw rod 27 and the first screw sleeve 28. Then rotate the rotating sleeve 20 in the reverse direction. The rotating sleeve 20 drives the threaded sleeve 17 to rotate in the reverse direction through the cooperation of the driving wheel 18 and the driven wheel 14. Then the threaded rod 13 pushes the push plate 16 to move, so that the push plate 16 drives the push sleeve 21 to slide through the connecting rod 19. Then the push sleeve 21 pushes the sliding block 7 to slide. Then the sliding block 7 drives the sliding plate 8 to slide along the sliding groove 6. Then the sliding block 7 moves inwards. At the same time, the sliding block 7 drives the mating block 22 to slide along the mating groove 23, so that the side pressing plate 9 presses against the side wall of the clamping block 10 tightly, and at the same time, the side pressing plate 9 squeezes the push spring 5. Then the clamping plate 11 clamps the clamping block 10 tightly. Then continue to rotate the rotating sleeve 20, and the clamping plate 11 drives the insertion tube 3 to press against the sealing sleeve 12 through the clamping block 10, so as to ensure the sealing performance at the connection between the insertion tube 3 and the connecting tube 2. At the same time, a plurality of sealing rings 24 arranged on the outer side of the insertion tube 3 will be clamped in the corresponding sealing grooves 25, thereby further strengthening the sealing strength at the connection between the insertion tube 3 and the connecting tube 2. Furthermore, while realizing the quick replacement of the suction nozzle 26, the high sealing performance of the pipeline connection is ensured.

[0037] Please refer to Figures 1-3 , as an implementation manner of the adjusting device: The adjusting device includes a suction nozzle 26, a first screw rod 27, a first screw sleeve 28 and a connecting frame 29. The first screw rod 27 is movably installed in the first screw sleeve 28 by threads. The first screw sleeve 28 is fixedly connected to both sides of the connecting frame 29. The connecting frame 29 is arranged on one side of the fixed frame 1.

[0038] One side of the connecting frame 29 is provided with a movable frame 30. The movable frame 30 is movably connected to the connecting frame 29. One side of the movable frame 30 is provided with a connecting seat 31. The connecting seat 31 is detachably installed on one side of the fixed frame 1.

[0039] Above the movable frame 30 is provided with a second screw rod 32. On the other side of the movable frame 30 is provided with a second screw sleeve 33. The second screw rod 32 passes through the movable frame 30 and the connecting seat 31 and is detachably connected to the second screw sleeve 33 by threads.

[0040] One side of both the first screw sleeve 28 and the second screw sleeve 33 is provided with a knob 34. The knobs 34 are respectively fixedly connected to one end of the first screw sleeve 28 and the second screw sleeve 33.

[0041] More specifically, when the angle of the suction nozzle 26 needs to be adjusted, first rotate the corresponding first screw sleeve 28 through the corresponding knob 34 respectively, so that the first screw sleeve 28 and the first screw rod 27 no longer press the connecting frame 29 tightly. Then the angle between the mounting seat 40 and the connecting frame 29 can be adjusted. After adjustment, make the first screw sleeve 28 and the first screw rod 27 press the connecting frame 29 tightly again, so as to complete the adjustment of the longitudinal angle of the nozzle. Then rotate the second screw sleeve 33 through the knob 34, so that the second screw sleeve 33 and the second screw rod 32 no longer press the movable frame 30 and the connecting seat 31 tightly. Then adjust the transverse angle of the suction nozzle 26 according to the requirements. After adjustment, rotate the second thread in the reverse direction through the knob 34, so that the second screw sleeve 33 cooperates with the second screw rod 32 to press the connecting seat 31 and the movable frame 30 tightly again.

[0042] In summary, when the overall device is in use or operation: when the suction nozzle 26 needs to be replaced, first rotate the rotating sleeve 20. The rotating sleeve 20 drives the driving wheel 18 to rotate. Then the driving wheel 18 drives the driven wheel 14 to rotate. Then the driven wheel 14 drives the threaded sleeve 17 to rotate. Since the threaded rod 13 and the threaded sleeve 17 are movably connected by threads, and one end of the threaded rod 13 is fixedly connected to the push plate 16, then the threaded rod 13 will slide along the threaded sleeve 17 and drive the push plate 16 to move. Then the push plate 16 drives the connecting rod 19 to slide along the through groove 15, and the connecting rod 19 drives the push sleeve 21 to slide. The push sleeve 21 drives the sliding block 7 to move through the cooperation of the fitting block 22 and the fitting groove 23. Then the sliding block 7 drives the sliding plate 8 to slide along the sliding groove 6. Due to the inclined structure design of the sliding block 7 and the sliding groove 6, when the sliding plate 8 slides along the sliding groove 6, the sliding plate 8 drives the sliding block 7 to spread outward. At the same time, the sliding block 7 drives the fitting block 22 to slide along the fitting groove 23. Then the sliding block 7 drives the push spring 5 and the side pressing plate 9 to move outward, so that the side pressing plate 9 no longer presses against the side wall of the clamping block 10, and at the same time, the clamping plate 11 no longer presses the clamping block 10 tightly. Then the insertion tube 3 can be directly pulled out. Then the first screw sleeve 28 and the first screw rod 27 at the connection between the mounting seat 40 and the connecting frame 29 are removed. Then the suction nozzle 26 is removed. Then, refer to the above steps to replace the new suction nozzle 26. Insert the insertion tube 3 into the connecting tube 2. Then reconnect the mounting seat 40 and the connecting frame 29 through the first screw rod 27 and the first screw sleeve 28. Then rotate the rotating sleeve 20 in the reverse direction. The rotating sleeve 20 drives the threaded sleeve 17 to rotate in the reverse direction through the cooperation of the driving wheel 18 and the driven wheel 14. Then the threaded rod 13 pushes the push plate 16 to move, so that the push plate 16 drives the push sleeve 21 to slide through the connecting rod 19. Then the push sleeve 21 pushes the sliding block 7 to slide. Then the sliding block 7 drives the sliding plate 8 to slide along the sliding groove 6. Then the sliding block 7 will gather inward. At the same time, the sliding block 7 drives the fitting block 22 to slide along the fitting groove 23, so that the side pressing plate 9 presses against the side wall of the clamping block 10 tightly, and at the same time, the side pressing plate 9 squeezes the push spring 5. Then the clamping plate 11 will clamp the clamping block 10 tightly. Then continue to rotate the rotating sleeve 20, and the clamping plate 11 will drive the insertion tube 3 to press against the sealing sleeve 12 through the clamping block 10, so as to ensure the sealing performance at the connection between the insertion tube 3 and the connecting tube 2. At the same time, a plurality of sealing rings 24 arranged on the outer side of the insertion tube 3 will be clamped in the corresponding sealing grooves 25, thereby further enhancing the sealing strength at the connection between the insertion tube 3 and the connecting tube 2. Furthermore, while realizing the quick replacement of the suction nozzle 26, the high sealing of the pipeline connection is ensured.

[0043] When the angle of the suction nozzle 26 needs to be adjusted, first rotate the corresponding first screw sleeve 28 through the corresponding knob 34 respectively, so that the first screw sleeve 28 and the first screw rod 27 no longer press the connecting frame 29 tightly. Then, the angle between the mounting seat 40 and the connecting frame 29 can be adjusted. After the adjustment is appropriate, make the first screw sleeve 28 and the first screw rod 27 press the connecting frame 29 tightly again, so as to complete the adjustment of the longitudinal angle of the nozzle. Then rotate the second screw sleeve 33 through the knob 34, so that the second screw sleeve 33 and the second screw rod 32 no longer press the movable frame 30 and the connecting seat 31 tightly. Then, adjust the lateral angle of the suction nozzle 26 according to the requirements. After the adjustment is appropriate, rotate the second thread in the reverse direction through the knob 34, so that the second screw sleeve 33 cooperates with the second screw rod 32 to press the connecting seat 31 and the movable frame 30 tightly again.

[0044] In all the solutions mentioned above, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A collector for a gas chromatograph, comprising a fixing frame (1), characterized in that: A connecting tube (2) is provided on the inner side of the fixing frame (1), and one end of the connecting tube (2) is connected to a quick-change device, and the quick-change device comprises an insertion tube (3), a threaded plate (4), a push spring (5), a sliding groove (6), a sliding block (7), a sliding plate (8), a side pressure plate (9), a clamping block (10) and a clamping plate (11). The threaded plate (4) is installed on the outer side of the connecting tube (2), the side pressure plate (9) is connected to the sliding block (7) through the push spring (5), the sliding plate (8) is installed in the sliding groove (6), the clamping plate (11) is connected to one side of the side pressure plate (9), the clamping block (10) is connected to the outer side of the insertion tube (3), and a protective mechanism is provided on the outer side of the insertion tube (3). The protection mechanism comprises a sealing sleeve (12), a threaded rod (13), a driven wheel (14), a through groove (15), a push plate (16), a threaded sleeve (17), a driving wheel (18), a connecting rod (19), a rotating sleeve (20) and a pushing sleeve (21); the sealing sleeve (12) is installed in a connecting pipe (2); the threaded rod (13) is connected to one side of the pushing plate (16); the through groove (15) is provided on a side wall of the connecting pipe (2); the pushing plate (16) is connected to the pushing sleeve (21) through the connecting rod (19); the threaded sleeve (17) is installed on the outside of the connecting pipe (2); the driving wheel (18) and the driven wheel (14) are meshed; and an adjusting device is provided on one side of the fixing frame (1).

2. The gas chromatograph collector according to claim 1, characterized in that: The sliding groove (6) and the sliding plate (8) are both designed as inclined structures.

3. A gas chromatograph collector according to claim 2, characterized in that: A matching block (22) is provided on one side of the sliding block (7), a matching groove (23) is provided on one side of the pushing sleeve (21), and the matching block (22) is slidably installed in the matching groove (23).

4. The gas chromatograph collector according to claim 1, characterized in that: A sealing ring (24) is provided on the outer side of the insertion tube (3), and a sealing groove (25) is provided on the inner side of the connecting tube (2).

5. A gas chromatograph collector according to any one of claims 1 to 4, characterized in that: The adjusting device comprises an air suction nozzle (26), a mounting seat (40), a first screw rod (27), a first screw sleeve (28) and a connecting frame (29); the first screw rod (27) is movably mounted in the first screw sleeve (28) through a thread; the first screw sleeve (28) is fixedly connected to both sides of the connecting frame (29); and the connecting frame (29) is arranged on one side of the fixing frame (1).

6. A gas chromatograph collector according to claim 5, characterized in that: A movable frame (30) is provided on one side of the connecting frame (29), and the movable frame (30) is movably connected to the connecting frame (29). A connecting seat (31) is provided on one side of the movable frame (30), and the connecting seat (31) is detachably mounted on one side of the fixed frame (1).

7. A gas chromatograph collector according to claim 6, characterized in that: A second screw rod (32) is provided above the movable frame (30), and a second screw sleeve (33) is provided on the other side of the movable frame (30). The second screw rod (32) passes through the movable frame (30) and the connecting seat (31) and is detachably connected to the second screw sleeve (33) through threads.

8. The gas chromatograph collector according to claim 7, characterized in that: A knob (34) is provided on one side of the first screw sleeve (28) and the second screw sleeve (33), and the knob (34) is fixedly connected to one end of the second screw sleeve (33) of the first screw sleeve (28).

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