High containment aseptic drug delivery valve

Abstract

The utility model relates to transmission valve technical field especially is a kind of high sealing sterility drug transmission valve, including valve body assembly, valve core subassembly, valve stem subassembly and sealing detection subassembly, the valve body assembly includes main valve body, the front side of main valve body is connected with valve cover, in the utility model, through the tempered glass shell, rubber limiting post, compression spring, limiting rod and second limiting insert block being set, the device can effectively improve the sealing of ball valve core by sealing ring and sealing strip, the first limiting insert block being fixed by main valve rod cooperates the second limiting insert block being fixed by limiting rod can make ball valve core stable limit, the compression spring being limited by rubber limiting post can lift limiting rod, whether there is drug leakage can be observed through transparent tempered glass shell, the device can make staff discover drug leakage problem in time, timely maintenance or replacement is carried out to transmission valve.

Description

Technical Field

[0001] This utility model relates to the field of transfer valve technology, specifically a high-sealing sterile drug transfer valve. Background Technology

[0002] High-sealing sterile drug transfer valves are key components used in pharmaceutical, biopharmaceutical, and other industries with extremely high cleanliness requirements. They enable the safe transfer of liquids or powders while maintaining system sealing and preventing microbial or particulate contamination. The high-sealing sterile drug transfer valve uses a connecting flange to connect the discharge pipe of the storage tank and the external delivery pipeline. It uses a metal-to-metal nanoscale valve disc for sealing, and combines it with food-grade fluororubber (FKM) or PTFE and other elastic sealing materials to improve the sealing performance, achieving a nanoscale sealing effect.

[0003] Some existing high-sealing sterile drug transfer valves lack leak detection mechanisms. When the transfer valve is used for a long time, the elastic sealing material will lose elasticity and the sealing performance will be insufficient, which will lead to drug leakage. Since the transfer valve and the connecting flange are made of opaque materials, it is difficult for the staff to detect drug leakage problems in time, and it is impossible to repair or replace the transfer valve in time. Therefore, a high-sealing sterile drug transfer valve is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a highly leak-proof sterile drug transfer valve to solve the problem that some existing highly leak-proof sterile drug transfer valves lack a leak-proof detection mechanism, making it difficult to detect drug leaks in a timely manner.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A highly airtight sterile drug delivery valve includes a valve body assembly, a valve core assembly, a valve stem assembly, and a sealing detection assembly. The valve body assembly includes a main valve body, with a valve cover threaded to its front side. A sealing ring, which fits tightly against the front face of the main valve body, is located in a groove at the rear end of the valve cover. A limit cap is bolted to the upper opening of the main valve body. The valve core assembly is located inside the main valve body. The valve core assembly includes a ball valve core located between the main valve body and the valve cover. The outer side of the ball valve core fits tightly against the inner wall of both the main valve body and the valve cover. A valve stem assembly is located on the upper side of the ball valve core. The valve stem assembly includes a component that passes through the upper opening of the main valve body and rotates with the main valve body. The main valve stem is connected, and its lower end is fixedly connected to a first limiting block inserted into the upper groove of the ball valve core. The upper end of the main valve stem is fixedly connected to a handwheel mounting part. The lower side of the ball valve core is provided with a sealing detection assembly. The sealing detection assembly includes a tempered glass shell bolted to the lower opening of the main valve body. A rubber limiting post is fixedly connected to the lower inner wall of the tempered glass shell. A compression spring is sleeved on the outer side of the rubber limiting post. A limiting rod is provided on the upper side of the compression spring. The limiting rod passes through the lower opening of the main valve body and is rotatably connected to the main valve body. The upper end of the limiting rod is fixedly connected to a second limiting block inserted into the lower groove of the ball valve core.

[0006] Preferably, the ball valve core has annular grooves on both the left and right sides, and strip grooves on both the upper and lower sides of the annular grooves. A sealing ring that fits tightly against the inner wall of the main valve body is inserted into each of the annular grooves of the ball valve core, and a sealing strip that fits tightly against the inner wall of the main valve body is inserted into each of the strip grooves of the ball valve core. The outer side of each sealing ring is fixedly connected to two sealing strips.

[0007] Preferably, the rubber limiting post is composed of two cylindrical blocks, and the diameter of the upper part of the cylindrical block of the rubber limiting post is equal to the inner diameter of the compression spring.

[0008] Preferably, the lower side of the limiting rod has a cylindrical groove with a diameter equal to the outer diameter of the compression spring, and the upper half of the compression spring is inserted into the cylindrical groove of the limiting rod.

[0009] Preferably, the diameter of the limiting rod is equal to the inner diameter of the tempered glass shell, and a set of circumferentially distributed vertical grooves are provided on the outer side of the limiting rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the device, through the tempered glass shell, rubber limiting post, compression spring, limiting rod, and second limiting block, effectively improves the sealing performance of the ball valve core through the sealing ring and sealing strip. The first limiting block, fixed by the main valve stem, and the second limiting block, fixed by the limiting rod, can stably limit the ball valve core. The compression spring, limited by the rubber limiting post, can lift the limiting rod. The transparent tempered glass shell allows observation of any drug leakage. This device enables staff to promptly detect drug leakage problems and repair or replace the transmission valve in a timely manner. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the valve body assembly of this utility model; Figure 4 This is a schematic diagram of the assembly structure of the valve core assembly of this utility model; Figure 5 This is a cross-sectional view of the valve stem assembly of this utility model; Figure 6 This is a cross-sectional view of the sealing detection component of this utility model.

[0012] In the diagram: 1. Valve body assembly; 11. Main valve body; 12. Valve cover; 13. Sealing ring; 14. Limit cover; 2. Valve core assembly; 21. Ball valve core; 22. Sealing ring; 23. Sealing strip; 3. Valve stem assembly; 31. Main valve stem; 32. First limit block; 33. Handwheel mounting part; 4. Sealing detection assembly; 41. Tempered glass shell; 42. Rubber limit post; 43. Compression spring; 44. Limit rod; 45. Second limit block. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0015] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0016] Please see Figure 1-6 This utility model provides a technical solution: A highly airtight sterile drug delivery valve includes a valve body assembly 1, a valve core assembly 2, a valve stem assembly 3, and a sealing detection assembly 4. The valve body assembly 1 includes a main valve body 11, with a valve cover 12 threadedly connected to the front side of the main valve body 11. A sealing ring 13 is provided in the rear groove of the valve cover 12, which fits tightly against the front end face of the main valve body 11. A limit cap 14 is bolted to the upper opening of the main valve body 11. The valve core assembly 2 is located inside the main valve body 11. The valve core assembly 2 includes a ball valve core 21 located between the main valve body 11 and the valve cover 12. The outer side of the ball valve core 21 fits tightly against the inner wall of the main valve body 11 and the inner wall of the valve cover 12. A valve stem assembly 3 is located on the upper side of the ball valve core 21. The valve stem assembly 3 includes a valve core that passes through the upper opening of the main valve body 11 and rotates with the main valve body 11. The main valve stem 31 is dynamically connected. The lower end of the main valve stem 31 is fixedly connected to a first limiting block 32 that is inserted into the upper groove of the ball valve core 21. The upper end of the main valve stem 31 is fixedly connected to a handwheel mounting part 33. The lower side of the ball valve core 21 is provided with a sealing detection assembly 4. The sealing detection assembly 4 includes a tempered glass shell 41 bolted to the lower opening of the main valve body 11. The lower inner wall of the tempered glass shell 41 is fixedly connected to a rubber limiting post 42. A compression spring 43 is sleeved on the outer side of the rubber limiting post 42. A limiting rod 44 is provided on the upper side of the compression spring 43. The limiting rod 44 passes through the lower opening of the main valve body 11 and is rotatably connected to the main valve body 11. The upper end of the limiting rod 44 is fixedly connected to a second limiting block 45 that is inserted into the lower groove of the ball valve core 21.

[0017] The ball valve core 21 has annular grooves on both its left and right sides, and strip grooves on both its upper and lower sides. A sealing ring 22, tightly fitting the inner wall of the main valve body 11, is inserted into each of the annular grooves. A sealing strip 23, also tightly fitting the inner wall of the main valve body 11, is inserted into each of the strip grooves. The outer side of each sealing ring 22 is fixedly connected to two sealing strips 23. The sealing rings 22 and sealing strips 23 effectively improve the sealing performance of the ball valve core 21. The rubber limiting post 42 consists of two cylindrical blocks. The diameter of the upper cylindrical block of the rubber limiting post 42 is the same as that of the compression spring 43. The inner diameters are equal, and the compression spring 43 can be limited by the rubber limiting post 42; the lower side of the limiting rod 44 has a cylindrical groove with a diameter equal to the outer diameter of the compression spring 43, and the upper part of the compression spring 43 is inserted into the cylindrical groove of the limiting rod 44. The compression spring 43 can lift the limiting rod 44, so that there is space inside the tempered glass shell 41 to accommodate the leaked drug; the diameter of the limiting rod 44 is equal to the inner diameter of the tempered glass shell 41, and a set of circumferentially distributed vertical grooves are opened on the outer side of the limiting rod 44. The vertical grooves of the limiting rod 44 can allow the drug to fall smoothly into the tempered glass shell 41 when it leaks.

[0018] Workflow: Before use, install the device between the discharge pipe of the storage tank and the external conveying pipe via the connecting flange on the outside of the main valve body 11 and the valve cover 12. Install the valve handwheel onto the handwheel mounting part 33, and the device is ready for use. When using the device, the operator can rotate the handwheel mounted on the handwheel mounting part 33, causing the main valve stem 31, which is limited by the main valve body 11 and the limit cover 14, to rotate. This, in turn, drives the ball valve core 21 to rotate through the first limit plug 32. At the same time, the limit rod 44 and the second limit plug 45 can rotate together with the ball valve core 21. The ball valve core 21 can rotate stably through the cooperation of the limit rod 44 and the first limit plug 32. This allows the cylindrical channel of the ball valve core 21 to connect with the openings of the main valve body 11 and the valve cover 12, enabling the drug to be transferred through the ball valve core 21. Similarly, the operator can rotate the handwheel mounted on the handwheel mounting part 33 in the opposite direction, so that the openings at both ends of the cylindrical channel of the ball valve core 21 are respectively in contact with the inner walls of the curved surfaces on the left and right sides of the main valve body 11. With the cooperation of the sealing ring 22 and the sealing strip 23 with the ball valve core 21, the sealing performance of the device can be effectively improved, thus sealing the drug. If leakage occurs during the use of the device, the leaked drug can fall into the lower part of the ball valve core 21 through the gap between the inner walls of the ball valve core 21 and the main valve body 11 and the valve cover 12. The device falls into the transparent tempered glass shell 41 through the vertical groove on the outside of the limiting rod 44. The operator only needs to observe the connection between the tempered glass shell 41 and the main valve body 11 and valve cover 12. If medication is found inside the tempered glass shell 41, the upstream and downstream valves of the device in the drug delivery system can be closed, the device removed, and the tempered glass shell 41 and limiting cover 14 removed from the main valve body 11. The rubber limiting post 42, compression spring 43, limiting rod 44, and second limiting block 45 are then removed from the underside of the main valve body 11. The ball valve core 21, sealing ring 22, and sealing strip 23 can then be inspected or replaced. If the main valve body 11 and valve cover... If there is drug leakage at the connection of 12, the main valve body 11, valve cover 12, and sealing ring 13 can be inspected or replaced. This device can effectively improve the sealing performance of the ball valve core 21 through the sealing ring 22 and sealing strip 23. The ball valve core 21 can be stably limited by the first limiting block 32 fixed by the main valve stem 31 and the second limiting block 45 fixed by the limiting rod 44. The compression spring 43 limited by the rubber limiting post 42 can lift the limiting rod 44. Whether there is drug leakage can be observed through the transparent tempered glass shell 41. This device can enable the staff to detect drug leakage problems in time and repair or replace the transmission valve in time.

[0019] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing sterile drug delivery valve, comprising a valve body assembly (1), a valve core assembly (2), a valve stem assembly (3), and a sealing detection assembly (4), characterized in that: The valve body assembly (1) includes a main valve body (11), a valve cover (12) is threaded to the front side of the main valve body (11), a sealing ring (13) is provided in the rear groove of the valve cover (12) and fits tightly with the front end face of the main valve body (11), a limit cover (14) is bolted to the upper opening of the main valve body (11), a valve core assembly (2) is provided inside the main valve body (11), the valve core assembly (2) includes a ball valve core (21) located between the main valve body (11) and the valve cover (12), the outer side of the ball valve core (21) fits tightly with the inner wall of the main valve body (11) and the inner wall of the valve cover (12), a valve stem assembly (3) is provided on the upper side of the ball valve core (21), the valve stem assembly (3) includes a main valve stem (31) passing through the upper opening of the main valve body (11) and rotatably connected to the main valve body (11), the main valve stem (31) The lower end of the main valve stem (31) is fixedly connected to a first limiting block (32) inserted into the groove on the upper side of the ball valve core (21). The upper end of the main valve stem (31) is fixedly connected to a handwheel mounting part (33). The lower side of the ball valve core (21) is provided with a sealing detection assembly (4). The sealing detection assembly (4) includes a tempered glass shell (41) bolted to the lower end opening of the main valve body (11). The lower inner wall of the tempered glass shell (41) is fixedly connected to a rubber limiting post (42). A compression spring (43) is sleeved on the outer side of the rubber limiting post (42). A limiting rod (44) is provided on the upper side of the compression spring (43). The limiting rod (44) passes through the lower end opening of the main valve body (11) and is rotatably connected to the main valve body (11). The upper end of the limiting rod (44) is fixedly connected to a second limiting block (45) inserted into the groove on the lower side of the ball valve core (21).

2. The high-sealing sterile drug transfer valve according to claim 1, characterized in that: The ball valve core (21) has annular grooves on both the left and right sides. The ball valve core (21) has strip grooves on both the upper and lower sides of the annular grooves. A sealing ring (22) that fits tightly against the inner wall of the main valve body (11) is inserted into the annular groove of the ball valve core (21). A sealing strip (23) that fits tightly against the inner wall of the main valve body (11) is inserted into the strip groove of the ball valve core (21). The outer side of the sealing ring (22) is fixedly connected to two sealing strips (23).

3. The high-sealing sterile drug transfer valve according to claim 1, characterized in that: The rubber limiting post (42) is composed of two cylindrical blocks, and the diameter of the upper part of the cylindrical block of the rubber limiting post (42) is equal to the inner diameter of the compression spring (43).

4. The high-sealing sterile drug transfer valve according to claim 1, characterized in that: The lower side of the limiting rod (44) has a cylindrical groove with a diameter equal to the outer diameter of the compression spring (43), and the upper half of the compression spring (43) is inserted into the cylindrical groove of the limiting rod (44).

5. The high-sealing sterile drug transfer valve according to claim 1, characterized in that: The diameter of the limiting rod (44) is equal to the inner diameter of the tempered glass shell (41), and a set of circumferentially distributed vertical grooves are provided on the outer side of the limiting rod (44).

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