Bag type pipeline joint anti-falling device
By using threaded connections and annular sealing rings, the problems of cumbersome operation and insufficient sealing of bag-type pipeline connections are solved, achieving rapid fixation and highly reliable connections, ensuring the safety and stability of the pipeline system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GENERAL PROSPECTING INSTITUTE OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-08
AI Technical Summary
Bag-type pipeline connections are cumbersome to operate and lack stability and sealing, making it difficult to meet the safety and stability requirements of modern industry.
It adopts a threaded connection method, which uses the external and internal threads of the rigid pipe and the connecting pipe to meet, combined with the annular sealing ring and clamp design to achieve quick fixation and double sealing. It is equipped with a pressure gauge and gas sensor for monitoring and early warning.
It enables rapid installation and reliable fixed connection, improves the anti-derailment effect and sealing performance of the connection, and enhances the safety and reliability of the pipeline system.
Smart Images

Figure CN224214876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, specifically to a bag-type pipeline connection anti-detachment device. Background Technology
[0002] Bag-type pipelines are widely used in many fields such as industry, medicine, and chemical engineering. Their bags are mainly used to contain liquids, gases, and other media, and are connected to delivery pipes to achieve media transmission. Traditional connection methods for bag-type pipelines are cumbersome to install and disassemble, requiring significant manpower and time. Furthermore, they lack stability, sealing, and reliability, failing to meet the stringent safety and stability requirements of modern industry for pipeline connections. Therefore, we propose an anti-detachment device for bag-type pipeline connections. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a bag-type pipeline connection anti-detachment device. It can be quickly fixed by threaded connection, is simple to operate and convenient to use, and the threaded connection has a good anti-detachment effect, is not easy to loosen, and has high reliability, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a pouch-type pipeline connection anti-detachment device, comprising a pouch, the side surface of which is fixedly connected to a connecting pipe via a connector, a rigid pipe and a flexible pipe sleeved on the outside of the connecting pipe, the rigid pipe and the flexible pipe being fixedly connected, an external thread being provided on the outer surface of the connecting pipe near the connector, a threaded sleeve being movably sleeved on the outer side of the rigid pipe, an internal thread matching the external thread being provided on the inner surface of the threaded sleeve, and a retaining ring corresponding to the threaded sleeve being provided on the outer surface of the end of the rigid pipe.
[0005] As a preferred embodiment of this utility model, at least one annular groove is provided on the outer surface of the connecting pipe, and an annular sealing ring is provided in the annular groove.
[0006] As a preferred technical solution of this utility model, the position of the annular groove on the connecting pipe corresponds to that of the hose. A clamp matching the annular sealing ring is provided on the outside of the hose. The clamp includes two semi-rings that are hinged to each other. A connecting block is provided at the end of each of the two semi-rings. A through hole is opened on the side surface of the connecting block, and a connecting bolt is installed in the through hole.
[0007] As a preferred embodiment of this utility model, the inner surface of the clamp is provided with a groove corresponding to the annular sealing ring.
[0008] As a preferred embodiment of this utility model, a fixing ring is provided on the hose, and a pressure gauge is installed on the fixing ring.
[0009] As a preferred embodiment of this utility model, a sealing gasket is provided on the side surface of the retaining ring corresponding to the threaded sleeve.
[0010] As a preferred embodiment of this invention, a plurality of gas sensors are uniformly arranged on the peripheral surface of the connector.
[0011] As a preferred embodiment of this utility model, the outer side of the end of the connecting pipe is provided with a chamfer.
[0012] Compared with the prior art, the advantages of this utility model are: after the rigid pipe and the connecting pipe are connected, the threaded sleeve is rotated to make it threadedly connected with the external thread on the connecting pipe, thus fixing the rigid pipe and the connecting pipe. The threaded connection can be quickly fixed, is simple to operate, convenient to use, and has a good anti-loosening effect, is not easy to loosen, and has high reliability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the rigid tube and flexible tube of this utility model;
[0015] Figure 3 This utility model Figure 2 A partial cross-sectional schematic diagram;
[0016] Figure 4 This is a schematic diagram of the connecting pipe of this utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the clamp of this utility model.
[0018] In the diagram: 1. Bag, 2. Connector, 3. Connecting pipe, 4. External thread, 5. Annular groove, 6. Annular sealing ring, 7. Chamfer, 8. Pressure gauge, 9. Rigid pipe, 10. Flexible hose, 11. Threaded sleeve, 12. Retaining ring, 13. Sealing gasket, 14. Clamp, 15. Connecting block, 16. Connecting bolt, 17. Groove, 18. Gas sensor. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-5This utility model provides a technical solution: a pouch-type pipeline connection anti-detachment device, including a pouch 1. The side surface of the pouch 1 is fixedly connected to a connecting pipe 3 via a connector 2. A rigid pipe 9 and a flexible pipe 10 are sleeved on the outside of the connecting pipe 3, and the rigid pipe 9 and the flexible pipe 10 are fixedly connected. An external thread 4 is provided on the outer surface of the connecting pipe 3 near the connector 2. A threaded sleeve 11 is movably sleeved on the outer side of the rigid pipe 9. An internal thread matching the external thread 4 is provided on the inner surface of the threaded sleeve 11. After the rigid pipe 9 is connected to the connecting pipe 3, the threaded sleeve 11 is rotated to make it threadedly connected to the external thread 4 on the connecting pipe 3, thus fixing the rigid pipe 9 to the connecting pipe 3. The threaded connection can be quickly fixed, is simple to operate, convenient to use, and has a good anti-detachment effect, is not easy to loosen, and has high reliability.
[0021] A retaining ring 12 corresponding to the threaded sleeve 11 is provided on the outer surface of the end of the rigid tube 9, which is used to limit the threaded sleeve 11.
[0022] In a preferred embodiment, at least one annular groove 5 is formed on the outer surface of the connecting pipe 3, and an annular sealing ring 6 is disposed within the annular groove 5. The annular sealing ring 6 fills the gap between the annular groove 5 and the hose 10, effectively preventing fluid leakage between the connecting pipe 3 and the hose 10, forming a reliable sealing barrier, ensuring the sealing performance of the connection, and preventing liquid or gas from escaping from the connection. This ensures the sealing integrity of the bag-type pipeline system and avoids resource waste and potential safety risks caused by leakage. Simultaneously, the annular sealing ring 6 has a certain elastic deformation capacity within the annular groove 5, and can automatically adapt to pressure fluctuations when the fluid pressure changes, maintaining a good sealing condition.
[0023] The inner diameter of the rigid tube 9 is slightly larger than that of the flexible tube 10, allowing it to pass through the annular sealing ring 6 more easily.
[0024] In a preferred embodiment, the annular groove 5 is positioned on the connecting pipe 3 corresponding to the flexible hose 10. The cross-sectional shape of the annular groove 5 is semi-circular, and the cross-sectional shape of the annular sealing ring 6 is circular. After the annular sealing ring 6 is inserted into the annular groove 5, it will protrude a portion, and the protruding portion forms a seal with the elastic flexible hose 10.
[0025] The hose 10 is provided with a clamp 14 that matches the annular sealing ring 6. When the clamp 14 fixes the hose 10, it tightly presses the annular sealing ring 6 into the annular groove 5 to form a double seal, which further enhances the sealing performance of the connection and effectively prevents liquid or gas from leaking from the gap between the hose and the connecting pipe, ensuring the sealing reliability of the entire pipeline system.
[0026] The clamp 14 comprises two hinged semi-rings, each with a connecting block 15 at its end. The side surface of the connecting block 15 has a through hole, into which a connecting bolt 16 is installed. The clamp 14's design of two hinged semi-rings simplifies and speeds up installation. Simply surround the two semi-rings around the connection point between the hose 10 and the connecting pipe 3, and install the connecting bolt 16 through the through hole in the connecting block 15 to quickly fix the clamp. This eliminates the need for complex tools and cumbersome operations, significantly saving installation time and labor costs, and improving work efficiency.
[0027] In a further preferred embodiment, the inner surface of the clamp 14 is provided with a groove 17 corresponding to the annular sealing ring 6. The groove 17 and the annular sealing ring 6 cooperate with each other to fit more tightly into the annular groove 5 of the connecting pipe 3 and the outer wall of the hose 10, so that the sealing ring is subjected to more uniform force, effectively preventing fluid from leaking from the gap between the hose 10 and the clamp 14, further improving the sealing performance of the entire connection, and ensuring the sealing reliability of the pipeline system.
[0028] Optionally, a retaining ring is provided on the hose 10, and a pressure gauge 8 is installed on the retaining ring. The pressure gauge can be a gas pressure gauge or a liquid pressure gauge, and the appropriate pressure gauge can be selected according to the specific application environment of the bag 1. The pressure gauge 8 can monitor the pressure of the fluid inside the hose 10 in real time, providing accurate pressure data regardless of whether it is a gas or liquid medium. This allows operators to understand the pressure changes at the pipeline connection at any time, keep track of the system's operating status, and, in conjunction with alarms, provide early warnings for detachment and leakage.
[0029] Optionally, a plurality of gas sensors 18 are evenly arranged on the peripheral surface of the connector 2. When the bag 1 is filled with gas, a corresponding gas detection sensor can be set according to the corresponding gas to detect whether there is a leak at the connection, effectively preventing gas leaks from causing accidents such as explosions, fires or poisoning, and improving the safety of the entire pipeline system.
[0030] The pressure gauge 8 and gas sensor 18 used in this application are all electronic components commonly used in the prior art. Their specific structures, working principles, control methods and circuit connections are all well-known technologies and will not be described in detail here.
[0031] In a preferred embodiment, a sealing washer 13 is provided on the side surface of the retaining ring 12 corresponding to the threaded sleeve 11. The sealing washer 13 can fill the tiny gap between the retaining ring 12 and the threaded sleeve 11, thereby significantly improving the sealing performance of the connection and effectively preventing fluid leakage from that point, thus ensuring the sealing reliability of the entire bag-type pipeline system.
[0032] In a preferred embodiment, the outer side of the end of the connecting pipe 3 is provided with a chamfered portion 7, which facilitates the quick connection between the hose 10 and the connecting pipe 3, making the operation simpler and faster.
[0033] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pouch-type anti-detachment device for pipeline connections, comprising a pouch (1), characterized in that: The side surface of the bag (1) is fixedly connected to the connecting tube (3) via the connector (2). A rigid tube (9) and a flexible tube (10) are sleeved on the outside of the connecting tube (3). The rigid tube (9) and the flexible tube (10) are fixedly connected. An external thread (4) is provided on the outer surface of the connecting tube (3) near the connector (2). A threaded sleeve (11) is movably sleeved on the outer side of the rigid tube (9). An internal thread matching the external thread (4) is provided on the inner surface of the threaded sleeve (11). A retaining ring (12) corresponding to the threaded sleeve (11) is provided on the outer surface of the end of the rigid tube (9).
2. The anti-detachment device for a bag-type pipeline connection according to claim 1, characterized in that: At least one annular groove (5) is provided on the outer surface of the connecting pipe (3), and an annular sealing ring (6) is provided in the annular groove (5).
3. The anti-detachment device for a bag-type pipeline connection according to claim 2, characterized in that: The position of the annular groove (5) on the connecting pipe (3) corresponds to that of the hose (10). A clamp (14) matching the annular sealing ring (6) is provided on the outside of the hose (10). The clamp (14) includes two semi-rings that are hinged to each other. A connecting block (15) is provided at the end of each of the two semi-rings. A through hole is opened on the side surface of the connecting block (15), and a connecting bolt (16) is installed in the through hole.
4. The anti-detachment device for a bag-type pipeline connection according to claim 3, characterized in that: The inner surface of the clamp (14) is provided with a groove (17) corresponding to the annular sealing ring (6).
5. The anti-detachment device for a bag-type pipeline connection according to claim 1, characterized in that: A retaining ring is provided on the hose (10), and a pressure gauge (8) is installed on the retaining ring.
6. The anti-detachment device for a bag-type pipeline connection according to claim 1, characterized in that: A sealing gasket (13) is provided on the side surface of the retaining ring (12) corresponding to the threaded sleeve (11).
7. The anti-detachment device for a bag-type pipeline connection according to claim 1, characterized in that: Several gas sensors (18) are evenly arranged on the peripheral surface of the connector (2).
8. A bag-type pipeline connection anti-detachment device according to any one of claims 1-7, characterized in that: The outer side of the end of the connecting pipe (3) is provided with a chamfered part (7).