An automatic adsorption tube pretreatment platform

Abstract

This invention provides an automatic pretreatment platform for adsorption tubes, relating to the field of adsorption tube pretreatment technology. It includes a support bracket with a rotating disk frame rotatably connected to its top. The rotating disk frame has a ring array of pretreatment components on its outer side. This invention uses a drive motor to rotate a driving wheel, which meshes with a driven gear ring to synchronously rotate a support column and a vertical disk. This causes the pretreatment components within the annular groove to move in a circular motion with the vertical disk, forming a continuous workstation for feeding, heating and purging, cooling, and unloading. This eliminates the need for manual transfer of adsorption tubes, enabling batch continuous pretreatment of multiple adsorption tubes, significantly reducing manual intervention and avoiding external contamination during transfer. Simultaneously, the ring array of pretreatment components can perform different stages of pretreatment operations simultaneously. Compared to traditional linear multi-station systems, this significantly improves pretreatment efficiency, and each station operates independently, ensuring consistent pretreatment.

Description

Technical Field

[0001] This utility model relates to the field of adsorption tube pretreatment technology, and in particular to an automatic adsorption tube pretreatment platform. Background Technology

[0002] An adsorption tube is a tubular device filled with adsorption materials such as activated carbon and Tenax. It is mainly used to enrich volatile organic compounds or semi-volatile organic compounds in air and exhaust gas. It is a core pretreatment component in fields such as environmental monitoring, food testing, and industrial gas analysis. Pretreatment is a crucial step before using adsorption tubes. Its purpose is to remove residual impurities and interfering substances from the adsorption tubes, activate the adsorption activity of the adsorption material, and ensure the accuracy of subsequent sampling data. Without pretreatment, residual impurities will accumulate with the target substance, leading to deviations in the detection results.

[0003] The existing technology has the following shortcomings: Existing pretreatment devices are mostly single-station or linear multi-station structures, requiring manual transfer of adsorption tubes to different stations such as heating, purging, and cooling. This is not only cumbersome and requires a lot of manual intervention, but also prone to introducing external contamination during the transfer process. In addition, the limited processing capacity per cycle leads to low pretreatment efficiency. The adsorption tube clamping in existing devices mostly relies on manual adjustment or rigid drive components. Manual adjustment is prone to uneven clamping force, which can lead to carrier gas leakage and affect the purging effect. Rigid drive components are difficult to adapt to adsorption tubes of different lengths and are prone to damage due to improper force control. At the same time, heating and cooling functions are mostly independent modules, and switching requires moving the adsorption tubes, further increasing the complexity of operation and affecting the consistency of pretreatment. Utility Model Content

[0004] This invention proposes an automatic pretreatment platform for adsorption tubes, which enables continuous multi-station operation through the rotation of a vertical disc, flexibly clamps and adapts to different adsorption tubes, and integrates heating and cooling switching, reducing manual intervention, improving pretreatment efficiency and consistency, and avoiding contamination, carrier gas leakage and adsorption tube damage, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic pretreatment platform for adsorption tubes, including a support bracket, a rotating disk frame rotatably connected to the top of the support bracket, and a plurality of pretreatment components arranged in a ring array on the outer side of the rotating disk frame.

[0006] The support bracket includes a U-shaped bracket, with drive motors fixedly connected to both the left and right sides of the outer surface of the U-shaped bracket. Movable slots are provided on both the left and right sides of the top of the U-shaped bracket. The output shaft of the drive motor passes through the interior of the movable slot and is fixedly connected to a drive wheel. A driven gear ring is meshed with the outer surface of the drive wheel.

[0007] The rotating disk frame includes a vertical disk with an annular groove on its outer surface. Support columns are fixedly connected to both sides of the vertical disk. The support columns pass through a U-shaped bracket and their outer surfaces are fixedly connected to the inner surface of the driven toothed ring. A conveying pipe that passes through the left and right sides is fixedly connected to the middle of the support column. Several diversion pipes are fixedly connected to the outer surface of the conveying pipe in an annular array. A solenoid valve is fixedly connected to the middle of the diversion pipe.

[0008] Preferably, the pretreatment component includes a semi-circular cylindrical column, which is fixedly connected to the inner side of the annular groove, and clamping components are fixedly connected to both the left and right sides inside the semi-circular cylindrical column.

[0009] Preferably, annular slide rails are fixedly connected to the left and right sides of the outer surface of the semi-circular cylindrical column, and a semi-circular baffle is rotatably connected to the front face of the two annular slide rails. Arc-shaped toothed rings are fixedly connected to the left and right sides of the inner surface of the semi-circular baffle.

[0010] Preferably, the top of the inner surface of the semi-circular cylindrical column is provided with a movable groove, and a drive motor is fixedly connected to both the left and right sides of the inner wall of the movable groove. The output shaft of the drive motor is fixedly connected to a rotating shaft.

[0011] Preferably, a transmission wheel is meshed with the outer surface of the rotating shaft, and the top of the transmission wheel extends to the top of the semi-circular cylindrical column and meshes with the inner surface of the arc-shaped toothed ring.

[0012] Preferably, a rotating plate is fixedly connected to the opposite ends of the two rotating shafts, an electric heating tube is fixedly connected to the bottom of the rotating plate, and a fan is fixedly connected to the top of the rotating plate.

[0013] Preferably, the clamping assembly includes a telescopic hose, with two telescopic hoses fixedly connected to the left and right sides of the interior of the semi-circular cylindrical column, and one end of the telescopic hose being fixedly connected to the end of the diverter pipe away from the delivery pipe.

[0014] Preferably, a clamping sleeve is fixedly connected to the other end of the telescopic hose, and a rubber sealing ring is fixedly connected to the inner wall of the clamping sleeve.

[0015] Preferably, the clamping sleeve is fixedly connected to telescopic top columns on both the front and rear sides of the side near the telescopic hose, and a connecting sleeve column is slidably connected to the outer surface of the telescopic top column. The end of the connecting sleeve column away from the telescopic top column is fixedly connected to the inner wall of the semi-circular cylindrical column.

[0016] Preferably, a clamping spring is provided on the outer surface of the telescopic top column and the connecting sleeve column, and the left and right ends of the clamping spring are fixedly connected to the opposite surfaces of the clamping sleeve plate and the semi-circular cylindrical column, respectively.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. In this utility model, through the mutual cooperation between the drive motor, drive wheel, driven gear ring of the support bracket and the vertical disk and annular groove pretreatment components of the rotating disk frame, the drive motor drives the drive wheel to rotate, and the drive wheel meshes with the driven gear ring to drive the support column and the vertical disk to rotate synchronously. This causes several pretreatment components in the annular groove to move in a circular motion with the vertical disk, forming a continuous workstation for feeding, heating and purging, cooling and unloading. It can realize batch continuous pretreatment of multiple adsorption tubes without manual transfer of adsorption tubes, greatly reducing manual intervention and avoiding external contamination during the transfer process. At the same time, the pretreatment components of the annular array can perform pretreatment operations at different stages simultaneously. Compared with traditional linear multi-station, the pretreatment efficiency is significantly improved, and each station operates independently, ensuring the consistency of pretreatment.

[0018] 2. In this utility model, through the mutual cooperation between the telescopic top column, connecting sleeve column, clamping spring, clamping sleeve plate, and rubber sealing ring in the clamping assembly, and the conveying pipe, diversion pipe, and solenoid valve in the rotating disc frame, as well as the drive motor, rotating shaft, rotating plate, electric heating tube, and fan in the pretreatment assembly, the clamping spring pushes the clamping sleeve plate with elastic force, so that the clamping sleeve plate adapts to adsorption tubes of different lengths and elastically clamps them. The rubber sealing ring enhances the sealing performance. At the same time, the diversion pipe is connected to the clamping sleeve plate through the telescopic flexible hose, and the solenoid valve controls the delivery of carrier gas. The drive motor drives the rotating shaft and rotating plate to rotate, which can redirect the electric heating tube or the fan to the adsorption tube to achieve heating or cooling switching. On the one hand, the flexible clamping structure eliminates the need for manual adjustment, allowing it to adapt to adsorption tubes of different lengths and avoiding the limitations of rigid drive components. Simultaneously, the uniform tension of the clamping spring, combined with the rubber sealing ring, effectively prevents carrier gas leakage, ensuring purging performance. On the other hand, heating and cooling functions are integrated into the same pretreatment component, switchable via a rotating plate without moving the adsorption tube, reducing operational steps and preventing contamination transfer. Furthermore, the integrated design of electric heating and fan cooling significantly shortens the time required to switch the adsorption tube from heating to cooling, further improving pretreatment efficiency. This also ensures consistent pretreatment conditions for all adsorption tubes, enhancing the reliability of test data. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic pretreatment platform for adsorption tubes of this utility model; Figure 2 This is a schematic diagram of the structure of the support bracket and rotating disk frame of this utility model; Figure 3 This is a schematic diagram of the unfolded structure of the pretreatment component of this utility model; Figure 4 This is a schematic cross-sectional view of the semi-circular cylindrical column of this utility model; Figure 5 This is a schematic diagram of the clamping assembly of this utility model.

[0020] Legend: 1. Support bracket; 11. U-shaped bracket; 12. Drive motor; 13. Drive wheel; 14. Driven gear ring; 2. Rotating disc frame; 21. Vertical disc; 22. Annular groove; 23. Support column; 24. Conveying pipe; 25. Diverter pipe; 26. Solenoid valve; 3. Pretreatment assembly; 31. Semi-circular cylindrical column; 311. Movable groove; 312. Drive motor; 313. Rotating shaft; 314. Transmission wheel; 315. Rotating plate; 316. Electric heating element; 317. Fan; 32. Annular slide rail; 33. Semi-circular baffle; 34. Arc-shaped gear ring; 35. Clamping assembly; 351. Telescopic hose; 352. Clamping sleeve; 353. Rubber sealing ring; 354. Telescopic top column; 355. Connecting sleeve; 356. Tightening spring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 and Figure 2 As shown, this utility model provides a technical solution: it includes a support bracket 1, a rotating disk frame 2 rotatably connected to the top of the support bracket 1, and a plurality of pre-processing components 3 arranged in a ring on the outer side of the rotating disk frame 2. The support bracket 1 includes a U-shaped bracket 11, and drive motors 12 are fixedly connected to the left and right sides of the outer surface of the U-shaped bracket 11. Movable slots are opened on the left and right sides of the top of the U-shaped bracket 11. The output shaft of the drive motor 12 passes through the interior of the movable slot and is fixedly connected to a drive wheel 13. The outer surface of the drive wheel 13 meshes with... The rotating disk frame 2 includes a vertical disk 21 connected to a driven gear ring 14. An annular groove 22 is provided on the outer surface of the vertical disk 21. Support columns 23 are fixedly connected to both the left and right sides of the vertical disk 21. The support columns 23 pass through the U-shaped bracket 11 and their outer surfaces are fixedly connected to the inner surface of the driven gear ring 14. A conveying pipe 24 that passes through the left and right sides is fixedly connected to the middle of the support column 23. Several diversion pipes 25 are fixedly connected to the outer surface of the conveying pipe 24 in an annular array. A solenoid valve 26 is fixedly connected to the middle of the diversion pipe 25. The overall effect of Embodiment 1 is as follows: the U-shaped bracket 11 provides stable support for the overall structure. After the drive motor 12 starts, it drives the drive wheel 13 to rotate in the movable groove. The drive wheel 13 drives the driven gear ring 14 to rotate through meshing transmission, thereby causing the support column 23 fixed to the driven gear ring 14 to rotate synchronously. The support column 23 drives the vertical disk 21 to rotate, so that the pretreatment component 3 in the annular groove 22 moves in a circle with the vertical disk 21, realizing the cyclic switching of multiple workstations. At the same time, the conveying pipe 24 in the middle of the support column 23 can be connected to the external carrier gas. The carrier gas is distributed to each pretreatment component 3 through the diversion pipe 25 of the annular array. The solenoid valve 26 can independently control the on and off of the carrier gas in the corresponding diversion pipe 25, ensuring that the purging operation of each pretreatment component 3 can be carried out independently, laying the foundation for subsequent batch continuous pretreatment.

[0024] Example 2: As Figure 3 and Figure 4 As shown, this utility model provides a technical solution: the pretreatment component 3 includes a semi-circular cylindrical column 31, which is fixedly connected to the inner side of the annular groove 22. Clamping components 35 are fixedly connected to both the left and right sides of the interior of the semi-circular cylindrical column 31. Annular slide rails 32 are fixedly connected to both the left and right sides of the outer surface of the semi-circular cylindrical column 31. A semi-circular baffle 33 is rotatably connected to the front face of the two annular slide rails 32. Arc-shaped toothed rings 34 are fixedly connected to both the left and right sides of the inner surface of the semi-circular baffle 33. A movable recess is formed at the top of the inner surface of the semi-circular cylindrical column 31. The inner walls of the groove 311 and the movable groove 311 are fixedly connected to the left and right sides of the drive motor 312. The output shaft of the drive motor 312 is fixedly connected to the rotating shaft 313. The outer surface of the rotating shaft 313 is meshed with the transmission wheel 314. The top of the transmission wheel 314 extends to the top of the semi-circular cylindrical column 31 and meshes with the inner surface of the arc-shaped toothed ring 34. The opposite ends of the two rotating shafts 313 are fixedly connected to a rotating plate 315. The bottom of the rotating plate 315 is fixedly connected to an electric heating tube 316, and the top of the rotating plate 315 is fixedly connected to a fan 317. The overall effect of Embodiment 2 is as follows: the semi-circular cylindrical column 31 provides a space for the adsorption tube, and the clamping assembly 35 can fix both ends of the adsorption tube; after the drive motor 312 starts, it drives the rotating shaft 313 to rotate in the movable groove 311. On the one hand, the rotating shaft 313 drives the transmission wheel 314 to rotate through meshing. The transmission wheel 314 meshes with the arc-shaped toothed ring 34, which drives the semi-circular baffle 33 to rotate along the annular slide rail 32, realizing the opening and closing of the semi-circular baffle 33. When closed, it forms a closed space with the semi-circular cylindrical column 31, reducing heat loss during heating. When open, it facilitates the removal and placement of the adsorption tube and air cooling. On the other hand, the rotating shaft 313 drives the rotating plate 315 to rotate synchronously. The electric heating tube 316 at the bottom of the rotating plate 315 can be turned to the adsorption tube side to heat and desorb impurities from the adsorption tube. Alternatively, the fan 317 at the top of the rotating plate 315 can be turned to the adsorption tube side to air cool the heated adsorption tube, realizing the integrated switching of heating and cooling functions without the need to transfer the adsorption tube.

[0025] Example 3: As Figure 5 As shown, this utility model provides a technical solution: the clamping assembly 35 includes a telescopic hose 351, two telescopic hoses 351 are fixedly connected to the left and right sides of the interior of the semi-circular cylindrical column 31 respectively, one end of the telescopic hose 351 is fixedly connected to the end of the diverter pipe 25 away from the conveying pipe 24, the other end of the telescopic hose 351 is fixedly connected to a clamping sleeve plate 352, a rubber sealing ring 353 is fixedly connected to the inner wall of the clamping sleeve plate 352, telescopic top columns 354 are fixedly connected to both the front and rear sides of the side of the clamping sleeve plate 352 near the telescopic hose 351, a connecting sleeve 355 is slidably connected to the outer surface of the telescopic top column 354, the end of the connecting sleeve 355 away from the telescopic top column 354 is fixedly connected to the inner wall of the semi-circular cylindrical column 31, a tightening spring 356 is provided on the outer surface of the telescopic top column 354 and the connecting sleeve 355, and the left and right ends of the tightening spring 356 are fixedly connected to the opposite sides of the clamping sleeve plate 352 and the semi-circular cylindrical column 31 respectively; The overall effect of embodiment 3 is as follows: the clamping spring 356 is always in a pre-compressed state, and pushes the clamping sleeve 352 towards the adsorption tube through the elastic force, so that the clamping sleeve 352 can adapt to adsorption tubes of different lengths and fit tightly against their ends. The rubber sealing ring 353 can fill the gap between the clamping sleeve 352 and the end of the adsorption tube, enhancing the sealing performance. When the clamping sleeve 352 moves, the telescopic top column 354 slides along the connecting sleeve column 355 to provide guidance for the clamping sleeve 352 and prevent it from deviating. At the same time, the telescopic hose 351 can extend and retract synchronously with the movement of the clamping sleeve 352 to ensure the connection between the diversion pipe 25 and the clamping sleeve 352. The carrier gas can enter the adsorption tube in sequence through the delivery pipe 24, the diversion pipe 25, and the telescopic hose 351 to realize carrier gas purging, effectively preventing carrier gas leakage from affecting the purging effect. Moreover, it can adapt to adsorption tubes of different lengths without manual adjustment, reducing manual intervention.

[0026] The working principle of the entire device is as follows: First, the adsorption tube to be pretreated is placed into the semi-circular cylindrical column 31. The top spring 356 pushes the clamping sleeve 352 to clamp the two ends of the adsorption tube, and the rubber sealing ring 353 seals it. Then, the drive motor 12 starts, which drives the vertical disc 21 to rotate through the drive wheel 13 and the driven gear ring 14, rotating the pretreatment component 3 to the heating station. The drive motor 312 starts, driving the rotating shaft 313 to rotate. On the one hand, the semi-circular baffle 33 closes to form a closed space, and on the other hand, the rotating plate 315 turns the electric heating tube 316 towards the adsorption tube. At the same time, the solenoid valve 26 corresponding to the diversion pipe 25 opens, and the carrier gas flows through. The pretreatment component 3 enters the adsorption tube through the conveying pipe 24, the diversion pipe 25, and the telescopic hose 351. The adsorption tube is heated and purged by the electric heating tube 316 to remove impurities. After purging, the solenoid valve 26 is closed, and the drive motor 312 drives the rotating plate 315 to turn the fan 317 to the adsorption tube. At the same time, the semi-circular baffle 33 is opened, and the fan 317 cools the adsorption tube. After cooling, the drive motor 12 drives the vertical disc 21 to rotate the pretreatment component 3 to the unloading station. The pretreated adsorption tube is manually removed, and a new adsorption tube to be treated is placed in the empty pretreatment component 3 to realize continuous batch pretreatment of multiple adsorption tubes.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic pretreatment platform for adsorption tubes, characterized in that: It includes a support bracket (1), the top of which is rotatably connected to a rotating disk frame (2), and the outer side of the rotating disk frame (2) has a number of pre-processing components (3) arranged in a ring. The support bracket (1) includes a U-shaped bracket (11). A drive motor (12) is fixedly connected to both the left and right sides of the outer surface of the U-shaped bracket (11). Movable slots are opened on both the left and right sides of the top of the U-shaped bracket (11). The output shaft of the drive motor (12) passes through the interior of the movable slot and is fixedly connected to a drive wheel (13). A driven gear ring (14) is meshed with the outer surface of the drive wheel (13). The rotating disk frame (2) includes a vertical disk (21). The outer surface of the vertical disk (21) is provided with an annular groove (22). Support columns (23) are fixedly connected to both the left and right sides of the vertical disk (21). The support columns (23) pass through the U-shaped bracket (11) and their outer surfaces are fixedly connected to the inner surface of the driven toothed ring (14). A conveying pipe (24) that passes through the left and right sides is fixedly connected to the middle of the support column (23). Several diversion pipes (25) are fixedly connected to the outer surface of the conveying pipe (24) in an annular array. A solenoid valve (26) is fixedly connected to the middle of the diversion pipe (25).

2. The automatic pretreatment platform for adsorption tubes according to claim 1, characterized in that: The pretreatment component (3) includes a semi-circular cylindrical column (31), which is fixedly connected to the inner side of the annular groove (22). Clamping components (35) are fixedly connected to both the left and right sides inside the semi-circular cylindrical column (31).

3. The automatic pretreatment platform for adsorption tubes according to claim 2, characterized in that: The outer surface of the semi-circular cylindrical column (31) is fixedly connected to the left and right sides of annular slide rails (32), and a semi-circular baffle (33) is rotatably connected to the front face of the two annular slide rails (32). The inner surface of the semi-circular baffle (33) is fixedly connected to the left and right sides of an arc-shaped toothed ring (34).

4. The automatic pretreatment platform for adsorption tubes according to claim 3, characterized in that: The top of the inner surface of the semi-circular cylindrical column (31) is provided with a movable groove (311). The left and right sides of the inner wall of the movable groove (311) are fixedly connected with drive motors (312), and the output shaft of the drive motor (312) is fixedly connected with a rotating shaft (313).

5. The automatic pretreatment platform for adsorption tubes according to claim 4, characterized in that: The outer surface of the rotating shaft (313) is meshed with a transmission wheel (314), the top of which extends to the top of the semi-circular cylindrical column (31) and meshes with the inner surface of the arc-shaped toothed ring (34).

6. The automatic pretreatment platform for adsorption tubes according to claim 5, characterized in that: A rotating plate (315) is fixedly connected to the opposite ends of the two rotating shafts (313). An electric heating tube (316) is fixedly connected to the bottom of the rotating plate (315), and a fan (317) is fixedly connected to the top of the rotating plate (315).

7. The automatic pretreatment platform for adsorption tubes according to claim 2, characterized in that: The clamping assembly (35) includes a telescopic hose (351), and two telescopic hoses (351) are fixedly connected to the left and right sides of the interior of the semi-circular cylindrical column (31), respectively. One end of the telescopic hose (351) is fixedly connected to the end of the diversion pipe (25) away from the delivery pipe (24).

8. The automatic pretreatment platform for adsorption tubes according to claim 7, characterized in that: The other end of the telescopic hose (351) is fixedly connected to a clamping sleeve (352), and a rubber sealing ring (353) is fixedly connected to the inner wall of the clamping sleeve (352).

9. The automatic pretreatment platform for adsorption tubes according to claim 8, characterized in that: The clamping sleeve (352) is fixedly connected to telescopic top columns (354) on both the front and back sides of the side near the telescopic hose (351). A connecting sleeve (355) is slidably connected to the outer surface of the telescopic top column (354). The end of the connecting sleeve (355) away from the telescopic top column (354) is fixedly connected to the inner wall of the semi-circular cylinder (31).

10. An automatic pretreatment platform for adsorption tubes according to claim 9, characterized in that: A clamping spring (356) is provided on the outer surface of the telescopic top column (354) and the connecting sleeve column (355). The left and right ends of the clamping spring (356) are fixedly connected to the opposite surfaces of the clamping sleeve plate (352) and the semi-circular cylindrical column (31), respectively.

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