Medical soft barrel with good sealing performance
By designing auxiliary sealing components and a multi-layer O-ring structure on the medical soft tube, the problem of deterioration in sealing performance due to thread wear was solved, and the high-efficiency sealing performance of the medical soft tube was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU CHANGSHUN MEDICAL TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-10
AI Technical Summary
The sealing performance of existing medical soft tubing gradually deteriorates as the threads wear, making it impossible to effectively maintain a good sealing effect.
It adopts an auxiliary sealing component and a multi-layer O-ring structure, including a combination design of a fixed ring, a limiting ring, an extension ring and a sealing cap, and enhances sealing performance through threaded connection and plug-in method.
The sealing performance of the medical soft container has been improved, ensuring that it maintains a good sealing effect during long-term use.
Smart Images

Figure CN224104631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical soft bucket technical field especially relates to a medical soft bucket with good sealing property. BACKGROUND
[0002] Medical soft bucket is a kind of soft packing container for medical field.Usually for square barrel or round barrel shape, barrel body is soft plastic material, with certain elasticity and flexibility, can withstand a certain degree of extrusion and collision. Part of medical soft bucket will be equipped with outer cover to enhance sealing, some will have polypropylene material's tap and screw cap and TPE gasket, facilitate liquid's taking and storage.
[0003] Most of the existing medical soft bucket only relies on single sealing structure, part only relies on the way of thread connection to seal, only rely on the sealing mode of thread connection, with the wear of thread, sealing effect will gradually become poor. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the shortcomings in prior art and provides a medical soft bucket with good sealing property.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A medical soft bucket with good sealing property, including medical soft bucket body, the top of medical soft bucket body is provided with fixed ring, and the fixed ring is screwed with sealing cover, the top of fixed ring is inserted with auxiliary sealing assembly, auxiliary sealing assembly controls auxiliary sealing ring, the top of auxiliary sealing ring is installed with limit ring, the middle part of both ends of the outer wall of auxiliary sealing ring is installed with limit protrusion, and the outer wall of auxiliary sealing ring is embedded with first O type sealing ring above and below limit protrusion.
[0007] In addition, preferably, a groove is formed in the fixed ring inside the limit ring, and a limit sliding groove is formed in the fixed ring inside the limit protrusion.
[0008] In addition, preferably, an in-out sliding groove is formed in the top of the fixed ring on one side of the limit sliding groove, and an identification groove is formed in the top of the fixed ring at the in-out sliding groove.
[0009] In addition, preferably, an extension ring is fixedly installed at the bottom of the limit ring and outside the fixed ring, a clamping groove is formed in the top of the fixed ring at the extension ring, and a third O type sealing ring is installed at the bottom in the clamping groove.
[0010] In addition, preferably, an auxiliary groove is formed in the top of the fixed ring outside the groove, and a second O type sealing ring is arranged in the auxiliary groove.
[0011] In addition, a preferred structure is that a limiting groove is formed at the center of the top of the limiting ring, and a pointing block is provided in the limiting groove, with the tip of the pointing block facing the limiting protrusion.
[0012] Furthermore, in a preferred configuration, the outer side of the fixing ring is provided with an external thread, and the inner side of the sealing cover is provided with an internal thread located at the external thread, and the internal thread is threadedly connected to the external thread.
[0013] The beneficial effects of this utility model are as follows:
[0014] In this invention, an auxiliary sealing component is inserted into the top of the medical soft bucket. The auxiliary sealing component initially seals the medical soft bucket. At the same time, a second sealing ring and a screw-on sealing cap are provided on the outside of the auxiliary sealing component to further enhance the sealing performance between the medical soft buckets. Attached Figure Description
[0015] Figure 1 This is a schematic diagram showing the disassembled structure of a medical soft bucket with good sealing performance proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the sealing cap structure;
[0017] Figure 3 This is a partially disassembled structural diagram of a medical soft bucket with good sealing performance proposed in this utility model;
[0018] Figure 4 for Figure 3 Enlarged structural diagram at point A;
[0019] Figure 5 This is a schematic diagram of the auxiliary sealing assembly;
[0020] Figure 6 for Figure 5 Enlarged structural diagram at point B;
[0021] Figure 7 This is a structural schematic diagram of a partial cross-section of the medical soft tube body and the fixing ring;
[0022] Figure 8 for Figure 7 Enlarged structural diagram at point C.
[0023] In the diagram: 1. Medical soft tube body; 11. Fixing ring; 111. External threaded part; 112. Inlet / outlet slide groove; 113. Marking groove; 114. Auxiliary groove; 115. Limiting slide groove; 116. Locking groove; 2. Sealing cap; 21. External threaded part; 3. Auxiliary sealing ring; 31. Limiting protrusion; 32. First O-ring seal; 33. Extension ring; 34. Limiting ring; 4. Second O-ring seal. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0025] Referring to Figures 1-8 The medical soft barrel has good sealing performance, and comprises a medical soft barrel body 1, a fixed ring 11 arranged at the top end of the medical soft barrel body 1, and a sealing cover 2 screwed on the fixed ring 11. An auxiliary sealing assembly is inserted into the top part of the fixed ring 11. The auxiliary sealing assembly controls an auxiliary sealing ring 3. A limiting ring 34 is arranged at the top end of the auxiliary sealing ring 3. Limiting protrusions 31 are arranged at the middle parts of the two ends of the outer wall of the auxiliary sealing ring 3. First O-shaped sealing rings 32 are arranged above and below the limiting protrusions 31 on the outer wall of the auxiliary sealing ring 3.
[0026] Meanwhile, a groove is arranged at the position of the limiting ring 34 in the fixed ring 11, and a limiting sliding groove 115 is arranged at the position of the limiting protrusion 31 in the fixed ring 11.
[0027] In addition, an in-out sliding groove 112 is arranged at one side of the limiting sliding groove 115 at the top end of the fixed ring 11, and an identification groove 113 is arranged at the position of the in-out sliding groove 112 at the top end of the fixed ring 11.
[0028] In addition, an extension ring 33 is fixedly arranged at the bottom of the limiting ring 34 and outside the fixed ring 11. A clamping groove 116 is arranged at the position of the extension ring 33 at the top end of the fixed ring 11, and a third O-shaped sealing ring is arranged at the bottom in the clamping groove 116.
[0029] Further, an auxiliary groove 114 is arranged outside the groove at the top end of the fixed ring 11, and a second O-shaped sealing ring 4 is arranged in the auxiliary groove.
[0030] Further, a limiting groove is arranged at the middle part of the top end of the limiting ring 34, a pointing block is arranged in the limiting groove, and the tip of the pointing block faces the limiting protrusion 31.
[0031] Meanwhile, an external thread part 111 is arranged outside the fixed ring 11, an internal thread part 21 is arranged at the position of the external thread part 111 in the sealing cover 2, and the internal thread part 21 is threadedly connected with the external thread part 111.
[0032] In the embodiment, by aligning the limiting protrusion 31 of the auxiliary sealing assembly with the access slot 112 and inserting, after inserting, holding the pointing block and rotating the auxiliary sealing assembly, until the tip of the pointing block is away from the identification slot 113, the installation of the auxiliary sealing assembly can be completed. At the same time, through the setting of the second O-shaped sealing ring, the outer wall of the auxiliary sealing ring 31 and the fixed ring 11 can be ensured to be attached. At the same time, when the auxiliary sealing assembly is inserted with the fixed ring 11, the extension ring 33 is clamped in the clamping groove 116, and the third O-shaped sealing ring in the clamping groove 116 can further ensure the sealing performance between the extension ring 33 and the clamping groove 116, and ensure the sealing performance of the medical soft barrel.
[0033] Then, the sealing cover 2 is screwed with the fixed ring 11, and the sealing cover 2 after screwing can further extrude the auxiliary sealing assembly and the second O-shaped sealing ring, and make it more firmly attached with the fixed ring 11, further ensure the sealing performance of the medical soft barrel.
[0034] In the embodiment, by aligning the limiting protrusion 31 of the auxiliary sealing assembly with the access slot 112 and inserting, after inserting, holding the pointing block and rotating the auxiliary sealing assembly, until the tip of the pointing block is away from the identification slot 113, the installation of the auxiliary sealing assembly can be completed. At the same time, through the setting of the second O-shaped sealing ring, the outer wall of the auxiliary sealing ring 31 and the fixed ring 11 can be ensured to be attached. At the same time, when the auxiliary sealing assembly is inserted with the fixed ring 11, the extension ring 33 is clamped in the clamping groove 116, and the third O-shaped sealing ring in the clamping groove 116 can further ensure the sealing performance between the extension ring 33 and the clamping groove 116, and ensure the sealing performance of the medical soft barrel.
[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A medical soft pail with excellent sealing property comprising a medical soft pail body (1), characterized in that, The top end of the medical soft barrel body (1) is provided with a fixed ring (11), and the fixed ring (11) is screwed with a sealing cover (2), the top of the fixed ring (11) is inserted with an auxiliary sealing assembly, the auxiliary sealing assembly controls an auxiliary sealing ring (3), the top end of the auxiliary sealing ring (3) is installed with a limiting ring (34), the middle part of the two ends of the outer wall of the auxiliary sealing ring (3) is installed with a limiting protrusion (31), and the outer wall of the auxiliary sealing ring (3) is embedded with a first O-shaped sealing ring (32) above and below the limiting protrusion (31).
2. The medical soft pail according to claim 1, wherein The fixed ring (11) is provided with a groove at the limiting ring (34), and the fixed ring (11) is provided with a limiting sliding groove (115) at the limiting protrusion (31).
3. The medical soft pail according to claim 1, wherein The top end of the fixed ring (11) is provided with an in-out sliding groove (112) at one side of the limiting sliding groove (115), and the top end of the fixed ring (11) is provided with an identification groove (113) at the in-out sliding groove (112).
4. The medical soft pail according to claim 1, wherein The bottom of the limiting ring (34) and outside the fixed ring (11) is fixedly installed with an extension ring (33), the top end of the fixed ring (11) is provided with a clamping groove (116) at the extension ring (33), and the bottom of the clamping groove (116) is installed with a third O-shaped sealing ring.
5. The medical soft pail according to claim 1, wherein The top end of the fixed ring (11) is provided with an auxiliary groove (114) outside the groove, and the auxiliary groove is provided with a second O-shaped sealing ring (4).
6. The medical soft tub with good sealing property according to claim 1, characterized in that, The top end of the limiting ring (34) is provided with a limiting groove, and the limiting groove is provided with a pointing block, and the tip of the pointing block faces the limiting protrusion (31).
7. The medical soft tub with good sealing property according to claim 1, characterized in that, The outer part of the fixed ring (11) is provided with an external thread part (111), and the inner part of the sealing cover (2) is provided with an internal thread part (21) at the external thread part (111), and the internal thread part (21) is in threaded connection with the external thread part (111).