Air locking type automatic sampling equipment and sampling system
By designing an airlock-type automatic sampling device, a sealed sampling method is achieved under high negative pressure conditions using a drive mechanism and an airlock slider. This solves the problem of difficult sampling under high negative pressure conditions, ensures uninterrupted sampling, and improves sampling efficiency and accuracy.
Patent Information
- Application Number
- CN202422881404.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing sampling structure is prone to air leakage under high negative pressure conditions, making sampling difficult and requiring temporary shutdown for sampling, affecting production.
Design an airlock type automatic sampling device, which uses a drive mechanism to drive the sampling slider assembly to reciprocate within the sampling execution body. The airlock slider and the inner wall of the sampling execution body form a sealed structure to ensure that the sampling process is uninterrupted.
It enables sampling without stopping the machine under high negative pressure conditions, ensuring a sealed sampling process, improving sampling efficiency and accuracy, and reducing production impact.
Smart Images
Figure CN223470844U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to production sampling technical field especially relates to a lock wind type automatic sampling equipment and sampling system. BACKGROUND
[0002] In daily production, due to the special requirements of production process and environmental protection, the continuous transmission of production materials under high negative pressure is often used in the production line. The material control department also needs to analyze the materials on the production line in real time to realize closed-loop management.
[0003] For the above-mentioned high negative pressure working condition, the existing sampling structure on the market is not a fully sealed structure, which will cause air leakage and make it difficult for the sample to pass through the sampling port normally, thereby completing the sampling work. However, the sampling work cannot be terminated, and the current site requires the sampling worker to temporarily stop the fan on the production line when sampling, and then start the fan again after sampling is completed. This will have a certain impact on production and there is a certain risk in operation. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a lock wind type automatic sampling equipment and sampling system for the above-mentioned deficiencies of the prior art.
[0005] The technical solution of the utility model to solve the above-mentioned technical problem is as follows: a lock wind type automatic sampling equipment, comprising a sampling execution body with hollow inside and open at both ends and a driving mechanism, at least one sampling feed port is arranged on the front part of the side wall of the sampling execution body, a sampling discharge port is arranged on the rear part of the side wall of the sampling execution body, the sampling discharge port is communicated with the sample storage mechanism through the discharging pipeline, a sampling sliding block assembly is slidably arranged in the sampling execution body, the driving mechanism is arranged at the open end of the sampling execution body, the driving rod of the driving mechanism extends into the sampling execution body and is connected with the sampling sliding block assembly, a lock wind sliding block is sleeved on the driving rod, the driving mechanism can drive the sampling sliding block assembly to reciprocate in the sampling execution body to carry the sample entering from the sampling feed port to the sampling discharge port, and when the driving rod drives the lock wind sliding block to move to the middle part of the sampling execution body, the lock wind sliding block and the inner side wall of the sampling execution body form a sealing structure to completely close the channel between the sampling feed port and the sampling discharge port.
[0006] The utility model discloses a beneficial effect is: the utility model discloses a wind -locking type automatic sampling equipment, through drive mechanism drive sampling slider assembly reciprocating motion in sampling executive body, to take the sample material from the sampling feed inlet to the sampling discharge outlet and discharge, and in the sampling process, through the lock wind slider with the inside wall middle part of sampling executive body forms the sealed structure, like this can avoid high negative pressure material conveying pipeline via the sampling feed inlet direct with sampling discharge outlet intercommunication, influence material to enter sampling executive body, the fan on production line does not need temporary stop, whole sampling process can continuously carry out unbrokenly, it is very convenient.
[0007] On the basis of the above technical scheme, the utility model still can make the following improvement:
[0008] Further: the side wall of sampling executive body's front part is provided with a plurality of sampling feed inlets, and a plurality of sampling feed inlets are evenly and equally spaced.
[0009] The beneficial effect of the above further scheme is: through evenly and equally spaced multiple sampling feed inlets, on the one hand, sampling efficiency can be improved, and on the other hand, the sampling executive body can be uniformly fed, and the precision of sampling can be ensured.
[0010] Further: the sampling executive body includes the first pipe section of being located at the front and being provided with the opening at both ends and the second pipe section of being located at the rear and being provided with the opening at both ends, the sampling feed inlet is arranged on the side wall of the first pipe section, the sampling discharge outlet is arranged on the side wall of the second pipe section, one end of the first pipe section is sealingly connected with one end of the second pipe section, and the outer diameter of the first pipe section is equal to the inner diameter of the second pipe section, the inner diameter of the first pipe section is matched with the size of the lock wind slider, the driving rod can drive the slider assembly to reciprocate in the first pipe section and the second pipe section, and the driving rod can drive the lock wind slider to reciprocate in the second pipe section, when the driving rod drives the lock wind slider to move towards the first pipe section to the stroke end, the lock wind slider is just clamped into the port of one end of the first pipe section and forms a sealed structure, and the driving mechanism is arranged at the other end of the second pipe section.
[0011] The beneficial effect of the above further scheme is: one end of the first pipe section is sealingly connected with one end of the second pipe section, and the outer diameter of the first pipe section is equal to the inner diameter of the second pipe section, so that a sealed structure can be formed between the connection of the two and the lock wind slider, ensuring that high negative pressure material conveying pipeline does not directly communicate with the sampling discharge outlet via the sampling feed inlet during the sampling process, so that the material can smoothly enter the sampling executive body via the sampling feed inlet.
[0012] Further, the sampling slider assembly comprises a first sampling slider, a second sampling slider matched with the inner sidewall of the first pipe section, and a connecting rod. The first sampling slider is arranged in the first pipe section near one end. The connecting rod is arranged between and connected with the first sampling slider and the second sampling slider. The end of the driving rod is connected with the second sampling slider, and the driving rod can drive the second sampling slider, the connecting rod and the first sampling slider to move back and forth in the first pipe section and the second pipe section.
[0013] The above-mentioned further scheme has the beneficial effect that the first sampling slider and the second sampling slider are connected through the connecting rod, so that the driving rod can drive the second sampling slider, the connecting rod and the first sampling slider to move back and forth in the first pipe section and the second pipe section, and the material entering the first pipe section from the sampling inlet is taken to the second pipe section and discharged from the sampling outlet, which is very convenient.
[0014] Further, when the driving rod drives the second sampling slider to move away from the other end of the first pipe section to the end of the stroke, the end of the first sampling slider near the second sampling slider is just located above the sampling outlet.
[0015] The above-mentioned further scheme has the beneficial effect that the first sampling slider can take all the material entering the first pipe section to the sampling outlet of the second pipe section and discharge it, without remaining in the second pipe section.
[0016] Further, the cross section of the first sampling slider is L-shaped, the vertical section of the first sampling slider is matched with the inner sidewall of the first pipe section, and the vertical section of the first sampling slider is arranged near the other end of the first pipe section.
[0017] The above-mentioned further scheme has the beneficial effect that the vertical section of the first sampling slider is matched with the inner sidewall of the first pipe section, so that the material entering the first pipe section can be scraped, ensuring that there is no residue and avoiding the influence of material residue accumulation on sampling effect and sampling accuracy.
[0018] Further, the air-lock type automatic sampling device further comprises a reset spring, which is sleeved on the driving rod, and the two ends of the reset spring are respectively connected with the driving mechanism and the air-lock slider.
[0019] The above-mentioned further scheme has the beneficial effect that the reset spring is arranged, which can drive the air-lock slider to reset when the driving rod is retracted, and can clean the dust and powder entering the second pipe section, ensuring the normal operation of the entire device.
[0020] Further, the sample storage mechanism comprises a sample storage support with an L-shaped cross section, a sample storage barrel arranged on the sample storage support, and a cover plate covering the upper end of the sample storage barrel, and the discharging pipeline penetrates through the cover plate and extends into the sample storage barrel and communicates with the sample storage barrel.
[0021] The above further scheme has the beneficial effect that the sample storage barrel can be effectively supported by the sample storage support, and the cover plate can act as a partition wall to prevent foreign matters and moisture outside from entering the sample storage barrel and affecting the sample quality.
[0022] Further, the sample storage mechanism further comprises a rotating plate, a compression spring, and a manual pressing rod, one end of the rotating plate is rotatably connected to the vertical side wall of the sample storage support, the compression spring is arranged between the horizontal surface of the sample storage support and the rotating plate, the sample storage barrel is placed on the rotating plate, the manual pressing rod is arranged at the other end of the rotating plate, and one end of the cover plate is fixedly connected to the vertical side wall of the sample storage support; in the natural state, the compression spring is in a compressed state, and the cover plate covers the upper end of the sample storage barrel.
[0023] The above further scheme has the beneficial effect that the rotating plate and the manual pressing rod are arranged, so that the rotating plate can be driven to rotate by the manual pressing rod, thereby separating the sample storage barrel from the cover plate, so that the sample storage barrel can be conveniently taken out, and the operation is convenient, safe and reliable.
[0024] The application further provides a wind-locking automatic sampling system, which comprises a controller and the wind-locking automatic sampling device.
[0025] The wind-locking automatic sampling system of the application can realize automatic sampling by controlling the driving mechanism through the controller, is simple and convenient to operate, safe and convenient, can be remotely controlled, reduces the labor intensity, and effectively ensures the personal safety of the operator. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 Fig. 1 is a structural schematic view of a wind-locking automatic sampling device according to an embodiment of the application;
[0027] Figure 2 Fig. 2 is a structural schematic view of a wind-locking automatic sampling system according to an embodiment of the application.
[0028] In the drawings, the components represented by the numbers are listed as follows:
[0029] 1, sampling execution body, 2, drive mechanism, 3, sampling feed port, 4, sampling discharge port, 5, air lock slider, 6, discharging pipeline, 7, sample storage mechanism, 8, first sampling slider, 9, second sampling slider, 10, connecting rod, 11, first pipe section, 12, second pipe section, 13, reset spring, 14, sample storage support, 15, rotating plate, 16, compression spring, 17, manual pressing rod, 18, sample storage barrel, 19, cover plate, 20, high negative pressure material conveying pipeline, 21, controller. DETAILED DESCRIPTION
[0030] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.
[0031] As shown in the drawings, Figure 1 An air lock type automatic sampling device comprises a sampling execution body 1 and a drive mechanism 2, the sampling execution body 1 is hollow and has two open ends, at least one sampling feed port 3 is arranged on the front part of the side wall of the sampling execution body 1, when the front part of the sampling execution body 1 extends into a high negative pressure material conveying pipeline 20, the inside of the sampling execution body 1 communicates with the high negative pressure material conveying pipeline 20 through the sampling feed port 3, a sampling discharge port 4 is arranged on the rear part of the side wall of the sampling execution body 1, the sampling discharge port 4 communicates with a sample storage mechanism 7 through a discharging pipeline 6, a sampling slider assembly is arranged in the sampling execution body 1 in a sliding mode, the drive mechanism 2 is arranged on the open end of the sampling execution body 1, a driving rod of the drive mechanism 2 extends into the sampling execution body 1 and is connected with the sampling slider assembly, an air lock slider 5 is arranged on the driving rod in a sleeved mode, the drive mechanism 2 can drive the sampling slider assembly to reciprocate in the sampling execution body 1, so as to carry the sample material entering from the sampling feed port 3 to the sampling discharge port 4, when the driving rod drives the air lock slider 5 to move to the middle part of the sampling execution body 1, the air lock slider 5 and the middle part of the inner side wall of the sampling execution body 1 form a sealing structure, so as to completely close the channel between the sampling feed port 3 and the sampling discharge port 4.
[0032] The air lock type automatic sampling device of the utility model drives the sampling slider assembly to reciprocate in the sampling execution body 1 through the drive mechanism 2, so as to carry the sample material entering from the sampling feed port 3 to the sampling discharge port 4, and during the sampling process, the air lock slider 5 and the middle part of the inner side wall of the sampling execution body 1 form a sealing structure, so as to avoid that the high negative pressure material conveying pipeline 20 directly communicates with the sampling discharge port 4 through the sampling feed port 3, which influences the material to enter the sampling execution body 1, the fan on the production line does not need to be temporarily stopped, and the whole sampling process can be continuously carried out without interruption, which is very convenient.
[0033] The driving mechanism 2 can adopt an electric cylinder in the embodiment of the utility model.
[0034] In one or more embodiments of the utility model, the front part of the side wall of the sampling execution body 1 is provided with a plurality of sampling feed ports 3, and the plurality of sampling feed ports 3 are evenly and equally spaced.
[0035] In actual use, the physical size and sample capacity of the sampling material are reasonably set, preferably 3-4 sampling feed ports 3 are selected in the embodiment of the utility model, and in order to ensure that all the materials entering the sampling execution body 1 are discharged through the sampling discharge port, the size of the sampling discharge port must be greater than that of the sampling feed port 3, and in the embodiment, the size of the sampling discharge port is 3-5 times that of the sampling feed port 3.
[0036] In one or more embodiments of the utility model, the sampling execution body 1 includes a first pipe segment 11 provided with openings at both ends and located at the front part and a second pipe segment 12 provided with openings at both ends and located at the rear part, the sampling feed port 3 is arranged on the side wall of the first pipe segment, the sampling discharge port 4 is arranged on the side wall of the second pipe segment, one end of the first pipe segment 11 is sealingly connected to one end of the second pipe segment 12, the outer diameter of the first pipe segment 11 is equal to the inner diameter of the second pipe segment 12, the inner diameter of the first pipe segment 11 matches the size of the air-locking sliding block 5, the driving rod can drive the sliding block assembly to move back and forth in the first pipe segment 11 and the second pipe segment 12, and the driving rod can drive the air-locking sliding block 5 to move back and forth in the second pipe segment 12, when the driving rod drives the air-locking sliding block 5 to move towards the first pipe segment 11 to the end of the stroke, the air-locking sliding block 5 is just clamped into the port of one end of the first pipe segment 11 and forms a sealing structure, and the driving mechanism 2 is arranged at the other end of the second pipe segment 12.
[0037] Here, in order to realize the sealing connection of the air-locking slider 5 and one end of the first pipe section 11, in practice, the air-locking slider 5 is arranged in a conical shape, and the diameter of one end of the air-locking slider 5 close to the driving mechanism 2 is greater than the diameter of the other end, so that the air-locking slider 5 can smoothly enter the port of one end of the first pipe section 11 when being reset, and the residual material can be pushed into the first pipe section 11 to be brought to the sampling discharge port 4 again next time.
[0038] In one or more embodiments of the present application, the slider assembly comprises a first sampling slider 8, a second sampling slider 9 matched with the inner side wall of the first pipe section 11, and a connecting rod 10, the first sampling slider 8 is arranged in the first pipe section 11 close to the other end, the connecting rod 10 is arranged between the first sampling slider 8 and the second sampling slider 9 and connected with the first sampling slider 8 and the second sampling slider 9 respectively, the end of the driving rod is connected with the second sampling slider 9, and the driving rod can drive the second sampling slider 9 to move back and forth in the first pipe section 11 and the second pipe section 12 together with the connecting rod 10 and the first sampling slider 8. By connecting the first sampling slider 8 and the second sampling slider 9 through the connecting rod 10, the material in the first pipe section 11 from the sampling inlet 3 can be brought to the second pipe section 12 and discharged from the sampling discharge port 4 when the driving rod drives the second sampling slider 9 to move back and forth in the first pipe section 11 and the second pipe section 12 together with the connecting rod 10 and the first sampling slider 8, which is very convenient.
[0039] In order to ensure the stability of the whole slider assembly, the connecting rod 10 needs to be arranged on the same central axis as the first pipe section 11 and the second pipe section 12.
[0040] Optionally, in one or more embodiments of the present application, when the driving rod drives the second sampling slider 9 to move away from the other end of the first pipe section 11 to the end of the stroke, the end of the first sampling slider 8 close to the second sampling slider 9 is just located above the sampling discharge port 4. Through this arrangement, the first sampling slider 8 can bring all the material in the first pipe section 11 to the sampling discharge port 4 of the second pipe section 12 and discharge it, without remaining in the second pipe section 12. In practice, the lengths of the first sampling slider 8 and the connecting rod 10 can be reasonably set to achieve this.
[0041] In one or more embodiments of the utility model, the first sampling slider 8 is L-shaped in cross section, the vertical section of the first sampling slider 8 matches the inner side wall of the first pipe section 11, and the vertical section of the first sampling slider 8 is arranged close to the other end of the first pipe section 11. By matching the vertical section of the first sampling slider 8 with the inner side wall of the first pipe section 11, the material entering the first pipe section 11 can be scraped, ensuring that there is no residue and avoiding the accumulation of material residues affecting the sampling effect and sampling accuracy.
[0042] It should be particularly pointed out that, in practice, when the first sampling slider 8 moves to the end of the stroke close to the other end of the first pipe section 11, the first sampling slider 8 is located between the sampling inlet 3 closest to the other end of the first pipe section 11 and the other end of the first pipe section 11.
[0043] Optionally, in one or more embodiments of the utility model, the air-lock automatic sampling device further comprises a reset spring 13, the reset spring 13 is sleeved on the drive rod, and the two ends of the reset spring 13 are connected with the drive mechanism 2 and the air-lock slider 5 respectively. By arranging the reset spring 13, on the one hand, the drive rod can drive the air-lock slider 5 to reset when it is retracted, and on the other hand, the dust and powder entering the second pipe section 12 can be cleaned, ensuring the normal operation of the entire device. Here, the reset spring 13 is in a compressed state.
[0044] In one or more embodiments of the utility model, the sample storage mechanism 7 comprises an L-shaped sample storage bracket 14, a sample storage barrel 18 and a cover plate 19, the sample storage barrel 18 is arranged on the sample storage bracket 14, the cover plate 19 covers the upper end of the sample storage barrel 18, the discharge pipeline 6 penetrates through the cover plate 19 and extends into the sample storage barrel 18, and the discharge pipeline 6 communicates with the sample storage barrel 18. The sample storage bracket 14 can provide effective support for the sample storage barrel 18, and the cover plate 19 can act as a partition to prevent foreign matter and moisture from entering the sample storage barrel 18 and affecting the quality of the sample.
[0045] In one or more embodiments of the utility model, the sample storage mechanism 7 still bag rotation board 15, compression spring 16, manual pressure rod 17, one end of rotation board 15 with the vertical lateral wall of sample storage support 14 rotation connection, compression spring 16 set up between the horizontal surface of sample storage support 14 with rotation board 15, sample storage barrel 18 is placed on rotation board 15, manual pressure rod 17 set up in the other end of rotation board 15, one end of cover plate 19 with the vertical lateral wall of sample storage support 14 fixed connection, natural state, compression spring 16 is in compression state, and cover plate 19 covers the upper end of sample storage barrel 18. By setting up rotation board 15 and manual pressure rod 17, so it can be driven by manual pressure rod 17 rotation board 15 rotates, so that the sample storage barrel 18 and cover plate 19 separate, so as to facilitate the sample storage barrel 18 is taken out, convenient operation, safe and reliable.
[0046] As Figure 2 The utility model provides a kind of wind-locking type automatic sampling system, including controller 21 and the wind-locking type automatic sampling equipment, it is characterized by: the controller 21 with the drive mechanism 2 electric connection.
[0047] The wind-locking type automatic sampling system of the utility model, by the controller 21 control drive mechanism 2 action, to realize automatic sampling, it is easy to operate, it is convenient and safe, and can be remotely controlled, reduce manual labor intensity, and effectively guarantee the personal safety of operator.
[0048] In actual, the controller 21 uses existing 51 series single-chip microcomputer or STM32 series single-chip microcomputer, control drive mechanism 2 start or stop work, can be realized by controlling solenoid valve, specific control process is prior art, here not at length, this is not the protection scope required by the utility model.
[0049] The above only for the preferred embodiment of the utility model, and not to limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.
Claims
1. A lock-type automatic sampling apparatus, characterized by: The application relates to a sampling execution body (1) and a driving mechanism (2), the front part of the side wall of the sampling execution body (1) is provided with at least one sampling feeding port (3), the rear part of the side wall of the sampling execution body (1) is provided with a sampling discharging port (4), the sampling discharging port (4) is communicated with a sample storage mechanism (7) through a discharging pipeline (6), a sampling sliding block assembly is slidably arranged in the sampling execution body (1), the driving mechanism (2) is arranged at one end of the sampling execution body (1), a driving rod of the driving mechanism (2) extends into the sampling execution body (1) and is connected with the sampling sliding block assembly, a wind locking sliding block (5) is arranged on the driving rod, the driving mechanism (2) can drive the sampling sliding block assembly to reciprocate in the sampling execution body (1) so as to take sample materials entering from the sampling feeding port (3) to the sampling discharging port (4) and discharge the sample materials, when the driving rod drives the wind locking sliding block (5) to move to the middle part of the sampling execution body (1), the wind locking sliding block (5) forms a sealing structure with the middle part of the inner side wall of the sampling execution body (1) so as to completely close the channel between the sampling feeding port (3) and the sampling discharging port (4).
2. The air-locked autosampler apparatus of claim 1, wherein: The front part of the side wall of the sampling execution body (1) is provided with a plurality of sampling feeding ports (3), and the plurality of sampling feeding ports (3) are uniformly and equidistantly arranged.
3. The air-locked autosampler apparatus of claim 1, wherein: The sampling execution body (1) comprises a first pipe segment (11) arranged at the front part and having both ends opened and a second pipe segment (12) arranged at the rear part and having both ends opened, the sampling feeding port (3) is arranged on the side wall of the first pipe segment, the sampling discharging port (4) is arranged on the side wall of the second pipe segment, one end of the first pipe segment (11) is sealingly connected with one end of the second pipe segment (12), the outer diameter of the first pipe segment (11) is equal to the inner diameter of the second pipe segment (12), the inner diameter of the first pipe segment (11) is matched with the size of the wind locking sliding block (5), the driving rod can drive the sliding block assembly to reciprocate in the first pipe segment (11) and the second pipe segment (12), the driving rod can drive the wind locking sliding block (5) to reciprocate in the second pipe segment (12), when the driving rod drives the wind locking sliding block (5) to move to the end of stroke towards the first pipe segment (11), the wind locking sliding block (5) is just clamped into the port of one end of the first pipe segment (11) and forms a sealing structure, the driving mechanism (2) is arranged at the other end of the second pipe segment (12).
4. The air-locked autosampler apparatus of claim 3, wherein: The slider assembly comprises a first sampling slider (8), a second sampling slider (9) matched with the inner side wall of the first pipe section (11), and a connecting rod (10) arranged between the first sampling slider (8) and the second sampling slider (9) and connected with the first sampling slider (8) and the second sampling slider (9) respectively, and the end of the driving rod is connected with the second sampling slider (9), and the driving rod can drive the second sampling slider (9) to move back and forth in the first pipe section (11) and the second pipe section (12) together with the connecting rod (10) and the first sampling slider (8).
5. The air-locked autosampler apparatus of claim 4, wherein: When the driving rod drives the second sampling slider (9) to move away from the other end of the first pipe section (11) to the end of the stroke, the end of the first sampling slider (8) close to the second sampling slider (9) is just above the sampling discharge port (4).
6. The air-locked autosampler apparatus of claim 4, wherein: The cross section of the first sampling slider (8) is L-shaped, the vertical section of the first sampling slider (8) is matched with the inner side wall of the first pipe section (11), and the vertical section of the first sampling slider (8) is arranged close to the other end of the first pipe section (11).
7. The air-locked autosampler apparatus of claim 1, wherein: A reset spring (13) is further included, which is sleeved on the driving rod, and the two ends of the reset spring (13) are connected with the driving mechanism (2) and the air locking slider (5) respectively.
8. The air-locked autosampler apparatus of claim 1, wherein: The sample storage mechanism (7) comprises an L-shaped sample storage bracket (14), a sample storage barrel (18), and a cover plate (19), the sample storage barrel (18) is arranged on the sample storage bracket (14), the cover plate (19) covers the upper port of the sample storage barrel (18), and the discharging pipeline (6) penetrates through the cover plate (19) and extends into the sample storage barrel (18) and communicates with the sample storage barrel (18).
9. The wind-locked autosampler apparatus of claim 8, wherein: The sample storage mechanism (7) further comprises a rotating plate (15), a compression spring (16), and a manual pressing rod (17), one end of the rotating plate (15) is rotationally connected with the vertical side wall of the sample storage bracket (14), the compression spring (16) is arranged between the horizontal surface of the sample storage bracket (14) and the rotating plate (15), the sample storage barrel (18) is placed on the rotating plate (15), the manual pressing rod (17) is arranged at the other end of the rotating plate (15), one end of the cover plate (19) is fixedly connected with the vertical side wall of the sample storage bracket (14), and in the natural state, the compression spring (16) is in the compressed state, and the cover plate (19) covers the upper port of the sample storage barrel (18).
10. A pin-lock type autosampling system, characterized by: The automatic sampling device with air locking function according to any one of claims 1-9, characterized in that the controller (21) is electrically connected with the driving mechanism (2).