Medical gas pipeline tee junction

By designing a combined structure of main delivery bend and branch port in the medical pneumatic fluid transport system, and utilizing gear transmission and sealing rings, the sealing problem of the branch pipe during maintenance was solved, achieving reliable sealing and convenient maintenance of the branch pipe.

CN224364539UActive Publication Date: 2026-06-16XIANGYANG GUANGYI IND TUBULATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGYANG GUANGYI IND TUBULATION CO LTD
Filing Date
2025-06-03
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In medical pneumatic transport systems, when internal parts are being repaired, all distribution pipes except the delivery distribution pipe are in the open position, which can easily lead to external dust or parts being repaired accidentally entering and causing damage to the distribution pipes.

Method used

A tee-type diversion connector for a medical pneumatic fluid transport system was designed. It consists of a main delivery bend, a diversion port, a rubber sealing ring, a telescopic spring, and a baffle. The diversion path is switched through gear transmission. During the diversion process, the rubber sealing ring and the arc-shaped sleeve are used to ensure sealing and prevent foreign matter from entering.

🎯Benefits of technology

This ensures reliable sealing and easy maintenance of the diversion pipe, prevents foreign matter from entering, and improves the reliability and safety of the system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224364539U_ABST
    Figure CN224364539U_ABST
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Abstract

The utility model discloses medical gas animal flow transmission system pipeline tee joint, relate to gas animal flow transmission system technical field, including installation box, main conveying elbow and shunt, the inside installation of installation box has main conveying elbow, the inner wall of installation box is installed with connecting plate, and the below of connecting plate is installed with small -size motor, the inner bottom of installation box is installed with connecting disc, the below of shunt is installed with shunt branch pipe, the upper surface of shunt all is installed with rubber seal ring, the below of main conveying elbow is installed with fixed ring, the rectangular plate is installed on fixed ring, the below of connecting post is installed with baffle. This medical gas animal flow transmission system pipeline tee joint, when main conveying elbow rotates, fixed ring synchronous rotation is driven baffle removal through rectangular plate and connecting post, completely shields the shunt not used, prevents sundries and enters.
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Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic tube transport systems, specifically to a tee connector for a medical pneumatic tube transport system. Background Technology

[0002] Medical pneumatic transport systems are core infrastructure for efficient material transfer in modern hospitals. They automate the rapid transport of small items such as medicines, test specimens, and medical records between departments by using airflow within pipelines to drive sealed containers. This system replaces traditional manual delivery methods, significantly improving material transport efficiency, shortening emergency response times, reducing the risk of cross-infection, and ensuring medical safety. During system operation, the T-junction, as a key component, functions as a crucial "transportation hub": it automatically switches airflow direction according to instructions, precisely allocating containers to pipeline branches corresponding to different target departments, achieving flexible scheduling of "single-source input, multi-directional output."

[0003] For example, Chinese utility model patent application number 201921718701.3 discloses a pneumatic fluid multi-directional distributor, in which the fixed end and swing end of the bent tube respectively adopt radial dynamic seal and end face dynamic seal to prevent air leakage, thereby improving the operating efficiency of the pneumatic fluid system. However, the device still has certain defects;

[0004] When it is necessary to inspect the internal parts of the enclosure, the other two diversion pipes, except for the one used for conveying, are in the open state. This makes it easy for external dust or parts to be inspected to accidentally enter the empty diversion pipes, which can easily damage them.

[0005] Therefore, we proposed a tee-type diverter for medical pneumatic transport systems to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a three-way shunt connector for a medical pneumatic fluid transport system, in order to solve the problem mentioned in the background art that, when it is necessary to inspect the internal parts of the box, the other two shunt pipes are in an open state except for the shunt pipe used for transport, which can easily lead to external dust or inspection parts accidentally entering the empty shunt pipes, thus easily causing damage to the shunt pipes.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a medical pneumatic tube transfer system pipeline tee diversion connector, including an installation box, a main delivery bend and a diversion port. The main delivery bend is installed inside the installation box. A connecting plate is installed on the inner wall of the installation box, and a small motor is installed below the connecting plate. A connecting plate is installed at the bottom of the installation box, and a diversion port is circumferentially opened on both the connecting plate and the bottom of the installation box. A diversion branch pipe is installed below the diversion port.

[0008] The upper surface of each diversion port is equipped with a rubber sealing ring. A fixing ring is installed below the main conveying bend, and an arc-shaped sleeve is installed below the fixing ring via a telescopic spring. A rectangular plate is installed on the fixing ring, and a connecting post is installed below the rectangular plate. A baffle is installed below the connecting post.

[0009] Preferably, a first gear is installed above the main conveying bend, and a drive shaft is installed above the small motor via an output shaft.

[0010] With the above structural design, the first gear above the main conveying bend cooperates with the transmission shaft driven by a small motor. The rotation of the main conveying bend is realized through gear transmission, which can accurately switch the diversion path and improve the diversion efficiency and accuracy.

[0011] Preferably, the rear end of the drive shaft is connected to the mounting housing via a bearing seat, and a second gear is mounted on the drive shaft, which meshes with the first gear.

[0012] The above structural design ensures smooth rotation of the main conveying bend, reduces transmission clearance, and avoids airflow leakage or diversion deviation caused by shaking.

[0013] Preferably, there are three branch pipes, and the branch pipes are arranged in a ring with the upper end of the main conveying bend as the center.

[0014] With the above structural design, three branch pipes are distributed in a ring below the main conveying bend, covering multi-directional transmission needs. In conjunction with the rotation of the main conveying bend, flexible scheduling of "single source input and three-way output" can be achieved.

[0015] Preferably, a sealing component is provided at the connection position between the branch pipe and the mounting box, and the connecting plate is detachably connected to the bottom of the mounting box.

[0016] With the above structural design, the sealing components and detachable connecting plate at the connection between the branch pipe and the mounting box not only ensure airflow sealing, but also facilitate disassembly and cleaning of the interior. During maintenance, debris can be quickly removed to keep the system unobstructed.

[0017] Preferably, the rubber sealing ring is located above the connecting plate, the rubber sealing ring is detachably connected to the connecting plate, the arc-shaped sleeve is fitted onto the main conveying bend, and the arc-shaped sleeve is slidably connected to the main conveying bend.

[0018] With the above structural design, the rubber sealing ring and the arc sleeve work together with the telescopic spring to automatically compensate for the gap when the main conveying bend rotates, ensuring reliable sealing during the diversion process and reducing pressure loss.

[0019] Preferably, there are two rectangular plates, two connecting columns, and two baffles, and the center line of the baffle coincides with the center line of the diversion port.

[0020] With the above structural design, the two sets of rectangular plates, connecting columns and baffles rotate synchronously with the main conveying bend, accurately blocking unused diversion ports, preventing dust and foreign objects from entering, and improving the reliability and safety of the system.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the medical pneumatic tube transport system pipeline tee diverter:

[0022] 1. Easy maintenance: When the main conveyor bend rotates, the fixed ring rotates synchronously, and the baffle moves through the rectangular plate and connecting column, completely blocking the unused diversion port and preventing foreign matter from entering;

[0023] 2. Reliable sealing: When the main conveying bend rotates to divert the flow, the arc-shaped sleeve on the main conveying bend disengages from the rubber sealing ring on the connecting plate. The arc-shaped sleeve is squeezed upward by the rubber sealing ring, compressing the telescopic spring. When the lower end of the main conveying bend moves above another diversion branch pipe that needs to be conveyed, the arc-shaped sleeve on the main conveying bend passes through another rubber sealing ring, and then moves downward under the action of the telescopic spring's rebound force, tightly abutting against another rubber sealing ring, thereby improving the connection sealing performance between the main conveying bend and the diversion branch pipe. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0026] Figure 3 This is a schematic diagram showing the positional structure of the first and second gears of this utility model;

[0027] Figure 4 This is a schematic diagram of the position and structure of the rubber sealing ring of this utility model;

[0028] Figure 5 This is a schematic diagram of the arc-shaped sleeve structure of this utility model.

[0029] In the diagram: 1. Mounting housing; 2. Main conveying bend; 3. First gear; 4. Connecting plate; 5. Small motor; 6. Drive shaft; 7. Second gear; 8. Connecting disc; 9. Diverter port; 10. Diverter branch pipe; 11. Rubber sealing ring; 12. Fixing ring; 13. Telescopic spring; 14. Arc sleeve; 15. Rectangular plate; 16. Connecting column; 17. Baffle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 This utility model provides a technical solution: a tee-type diverter for a medical pneumatic tube transport system, including a mounting box 1, a main delivery bend 2, a first gear 3, a connecting plate 4, a small motor 5, a drive shaft 6, a second gear 7, a connecting disc 8, a diversion port 9, a diversion branch pipe 10, a rubber sealing ring 11, a fixing ring 12, a telescopic spring 13, an arc-shaped sleeve 14, a rectangular plate 15, a connecting column 16, and a baffle 17. The main delivery bend 2 is installed inside the mounting box 1. The connecting plate 4 is installed on the inner wall of the mounting box 1, and the small motor 5 is installed below the connecting plate 4. The first gear 3 is installed above the main delivery bend 2. The drive shaft 6 is installed above the small motor 5 via an output shaft. When the small motor 5 is started, the output shaft of the small motor 5 drives the drive shaft 6 to rotate. The rear end of the drive shaft 6 is connected to the mounting box 1 via a bearing seat. The second gear 7 is installed on the drive shaft 6. The second gear 7 is connected to the first gear 6 via a bearing seat. Gears 3 mesh with each other, and the rotation of the drive shaft 6 drives the second gear 7 to rotate. The second gear 7 drives the first gear 3 to rotate, and the first gear 3 drives the main conveying bend 2 to rotate, so that the lower end of the main conveying bend 2 is connected to one of the three branch pipes 10 to achieve diversion. A connecting plate 8 is installed at the bottom of the mounting box 1, and both the connecting plate 8 and the bottom of the mounting box 1 are provided with a circumferential diversion port 9. A branch pipe 10 is installed below the branch port 9. There are three branch pipes 10, and the branch pipes 10 are distributed in a ring with the upper end of the main conveying bend 2 as the center, so that the main conveying bend 2 can be connected to the branch pipe 10 below when it is rotated under force. A sealing component is provided at the connection position between the branch pipe 10 and the mounting box 1. The connecting plate 8 is detachably connected to the bottom of the mounting box 1 to improve the sealing of the connection between the branch pipe 10 and the mounting box 1 and maintain the installation stability of the entire device.

[0032] Rubber sealing rings 11 are installed on the upper surface of the diversion port 9. The rubber sealing rings 11 are located above the connecting plate 8 and are detachably connected to the connecting plate 8. The arc-shaped sleeve 14 is fitted onto the main conveying bend 2 and is slidably connected to the main conveying bend 2. When the main conveying bend 2 rotates to divert the flow, the arc-shaped sleeve 14 on the main conveying bend 2 disengages from the rubber sealing ring 11 on the connecting plate 8. The arc-shaped sleeve 14 is squeezed upward by the rubber sealing ring 11, compressing the telescopic spring 13. When the lower end of the main conveying bend 2 moves above another diversion branch pipe 10 that needs to be conveyed, the arc-shaped sleeve 14 on the main conveying bend 2 passes through another rubber sealing ring 11 and then moves downward under the action of the rebound force of the telescopic spring 13, and... Another rubber sealing ring 11 fits tightly against the main conveying bend 2, thereby improving the sealing performance of the connection between the main conveying bend 2 and the branch pipe 10. A fixing ring 12 is installed below the main conveying bend 2, and an arc-shaped sleeve 14 is installed below the fixing ring 12 via a telescopic spring 13. A rectangular plate 15 is installed on the fixing ring 12, and a connecting post 16 is installed below the rectangular plate 15. A baffle 17 is installed below the connecting post 16. There are two rectangular plates 15, two connecting posts 16, and two baffles 17. The center line of the baffle 17 coincides with the center line of the branch port 9. When the main conveying bend 2 rotates, the fixing ring 12 rotates synchronously, and the baffle 17 moves through the rectangular plate 15 and the connecting post 16, completely blocking the unused branch port 9 and preventing debris from entering.

[0033] It should be noted that in the rotating structure of the main conveying bend 2, a rotation limiting mechanism is set on the main conveying bend 2 according to the actual situation to improve the rotation stability of the main conveying bend 2. For example, a limiting sleeve is set on the main conveying bend 2, and the limiting sleeve is fixedly connected to the mounting box 1. In addition, a door is set on the front surface of the mounting box 1.

[0034] Working principle: When using the medical pneumatic fluid transport system pipeline tee diverter, firstly, start the small motor 5. The output shaft of the small motor 5 drives the transmission shaft 6 to rotate. The rotation of the transmission shaft 6 drives the second gear 7 to rotate. The second gear 7 drives the first gear 3 to rotate. The first gear 3 drives the main delivery bend 2 to rotate, so that the lower end of the main delivery bend 2 is connected to one of the three diverter branches 10, thereby achieving diversion.

[0035] When the main conveying bend 2 rotates to divert the flow, the arc-shaped sleeve 14 on the main conveying bend 2 disengages from the rubber sealing ring 11 on the connecting disc 8. The arc-shaped sleeve 14 is compressed upwards by the rubber sealing ring 11, compressing the telescopic spring 13. When the lower end of the main conveying bend 2 moves above another diversion branch pipe 10 that needs to be conveyed, the arc-shaped sleeve 14 on the main conveying bend 2 passes through another rubber sealing ring 11, and then moves downwards under the rebound force of the telescopic spring 13, tightly abutting against the other rubber sealing ring 11. This improves the sealing performance of the connection between the main conveying bend 2 and the diversion branch pipe 10. When the main conveying bend 2 rotates, the fixing ring 12 rotates synchronously, driving the baffle 17 to move through the rectangular plate 15 and the connecting column 16, completely blocking the unused diversion port 9 and preventing debris from entering. This completes a series of operations. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tee connector for a medical pneumatic transport system, comprising a mounting housing (1), a main delivery bend (2), and a shunt port (9), wherein the main delivery bend (2) is installed inside the mounting housing (1), a connecting plate (4) is installed on the inner wall of the mounting housing (1), and a small motor (5) is installed below the connecting plate (4), characterized in that: A connecting plate (8) is installed at the bottom of the mounting box (1), and a diversion port (9) is provided on the connecting plate (8) and the bottom of the mounting box (1) in a ring shape. A diversion branch pipe (10) is installed below the diversion port (9). The upper surface of each diversion port (9) is equipped with a rubber sealing ring (11), a fixing ring (12) is installed below the main conveying bend (2), and an arc sleeve (14) is installed below the fixing ring (12) via a telescopic spring (13). A rectangular plate (15) is installed on the fixing ring (12), and a connecting column (16) is installed below the rectangular plate (15). A baffle (17) is installed below the connecting column (16).

2. The medical pneumatic transport system pipeline tee diverter according to claim 1, characterized in that: A first gear (3) is installed above the main conveying bend (2), and a transmission shaft (6) is installed above the small motor (5) via the output shaft.

3. The tee connector for the medical pneumatic transport system according to claim 2, characterized in that: The rear end of the drive shaft (6) is connected to the mounting box (1) through a bearing seat. A second gear (7) is installed on the drive shaft (6), and the second gear (7) meshes with the first gear (3).

4. The tee connector for the medical pneumatic transport system according to claim 1, characterized in that: There are three branch pipes (10), and the branch pipes (10) are distributed in a ring with the upper end of the main conveying bend (2) as the center.

5. The medical pneumatic transport system pipeline tee diverter according to claim 4, characterized in that: A sealing component is provided at the connection position between the branch pipe (10) and the mounting box (1), and the connecting plate (8) is detachably connected to the bottom of the mounting box (1).

6. The tee connector for the medical pneumatic transport system according to claim 1, characterized in that: The rubber sealing ring (11) is located above the connecting plate (8). The rubber sealing ring (11) and the connecting plate (8) are detachably connected. The arc sleeve (14) is fitted on the main conveying bend (2) and is slidably connected to the main conveying bend (2).

7. The tee connector for the medical pneumatic transport system according to claim 1, characterized in that: Two rectangular plates (15), two connecting columns (16) and two baffles (17) are provided, and the center line of the baffle (17) coincides with the center line of the diversion port (9).