Welding-free pipeline quick connector
The mechanical structure design of the fastening sleeve, connector and sealing ring solves the problem of time-consuming traditional pipe connection, achieves fast installation and efficient disassembly, ensures the sealing and safety of the pipeline system, and adapts to various environments.
Patent Information
- Application Number
- CN202422635330.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional pipe connection methods require special equipment processing, resulting in long installation time, especially in areas with restricted explosion-proof safety, which affects the construction progress.
The mechanical structure design of fastening sleeves, connectors and sealing rings is adopted to achieve quick connection of pipe sections. It is connected by flanges or threads, combined with support pads and supporting fastening bolts to provide additional fixation. The sealing ring is used to seal gaps to adapt to different environments.
It realizes the rapid installation and disassembly of pipelines, ensures sealing and safety, reduces construction costs and leakage risks, adapts to various environments, and improves the stability and maintenance convenience of the pipeline system.
Smart Images

Figure CN223306491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline joints, and in particular to a welding-free pipeline quick joint. Background Art
[0002] Traditional water supply pipe connections are primarily threaded and flanged. However, both types of connections require specialized equipment for processing before installation. This results in an extremely lengthy installation process. In some areas, such as chemical plants, the use of welding machines is strictly restricted due to explosion safety concerns. This increases construction time and significantly impacts overall progress, posing significant challenges to the smooth progress of related projects. Utility Model Content
[0003] The utility model provides a welding-free pipe quick connector, which solves the problem in the related art that the pipe installation process is long and quick connection cannot be achieved.
[0004] The technical solution of the utility model is as follows:
[0005] The welding-free pipe quick connector is used to quickly connect the first pipe section and the second pipe section, including:
[0006] a fastening sleeve, sleeved on one end of the first pipe segment and the second pipe segment, wherein the inner wall of the fastening sleeve abuts against the outer wall of the first pipe segment or the second pipe segment;
[0007] A connecting piece, one end of which is detachably mounted on the fastening sleeve, and the other end of which has a connecting portion; the connecting portions of two different connecting pieces are connected to each other;
[0008] A sealing ring is arranged in the connecting piece, and is used for sealing the gap between the connecting piece and the fastening sleeve.
[0009] As a further technical solution, the connecting portion may be a flange or a thread.
[0010] As a further technical solution, the connector has a plurality of screw holes on one side and further comprises:
[0011] A fixing ring is provided on the fastening sleeve, and the fastening sleeve has a plurality of through holes;
[0012] There are a plurality of connecting bolts, which pass through the through holes and are threadedly engaged with the screw holes.
[0013] As a further technical solution, it also includes:
[0014] The support pad is in the shape of a ring, and the cross-section of the support pad is T-shaped. The support pad is detachably arranged between the fixing ring and the connecting piece.
[0015] As a further technical solution, the fastening sleeve has a plurality of fastening holes, and further comprises:
[0016] There are a plurality of supporting and fastening bolts which are detachably arranged on the fastening sleeve. The supporting and fastening bolts are used to support and fix the first pipe section or the second pipe section in the fastening sleeve.
[0017] As a further technical solution, the sealing ring is made of elastic material, and the fastening sleeve squeezes the sealing ring after installation.
[0018] As a further technical solution, the sealing ring is provided with a leak-proof groove, and the leak-proof groove is used to contact and seal the gap between the fastening sleeve and the connecting piece.
[0019] As a further technical solution, the sealing ring is provided with a guiding slope, and the guiding slope is used to guide the fastening sleeve into the leak-proof groove.
[0020] The working principle and beneficial effects of the utility model are as follows:
[0021] In the present invention, the fastening sleeve can be directly sleeved on one end of the first pipe section and the second pipe section. It is easy to operate and can be quickly installed. The structure between the fastening sleeve and the connector is a mechanical structure. It does not need to be installed by means such as welding, which simplifies the connection steps, reduces the connection requirements, and can achieve quick connection in a variety of different environments. The sealing ring is arranged in the connector, which can effectively seal the gap between the connector and the fastening sleeve, prevent the fluid in the pipeline from leaking, and ensure the sealing and safety of the pipeline system. Whether it is liquid or gas transportation, it can ensure the stable operation of the system and reduce the waste of resources and environmental pollution risks caused by leakage. When it is necessary to maintain the pipeline system or replace part of the pipeline, since one end of the connector is detachably arranged on the fastening sleeve, the connector can be easily removed for repair or replacement, which greatly reduces the maintenance cost and workload. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.
[0023] Figure 1 This is a schematic structural diagram of the utility model.
[0024] In the figure: 1. Fastening sleeve, 2. First pipe section, 3. Second pipe section, 4. Connecting piece, 5. Connecting part, 6. Sealing ring, 7. Screw hole, 8. Fixing ring, 9. Through hole, 10. Connecting bolt, 11. Support pad, 12. Fastening hole, 13. Support and fastening bolt, 14. Leak-proof slot, 15. Guide slope. DETAILED DESCRIPTION
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0026] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0028] Reference Figure 1 , which is the first embodiment of the utility model, proposes a welding-free pipe quick connector for realizing the quick connection of the first pipe section 2 and the second pipe section 3, and is characterized in that it includes: a fastening sleeve 1 is sleeved on one end of the first pipe section 2 and the second pipe section 3, and the inner wall of the fastening sleeve 1 abuts against the outer wall of the first pipe section 2 or the second pipe section 3; one end of the connecting piece 4 is detachably provided on the fastening sleeve 1, and the other end has a connecting portion 5; the connecting portions 5 of two different connecting pieces 4 are connected to each other; a sealing ring 6 is provided in the connecting piece 4, and the sealing ring 6 is used to seal the gap between the connecting piece 4 and the fastening sleeve 1.
[0029] In this embodiment, the fastening sleeve 1 can be directly sleeved on one end of the first pipe section 2 and the second pipe section 3. It is easy to operate and can be quickly installed. The structure between the fastening sleeve 1 and the connector 4 is a mechanical structure. It does not need to be installed by means such as welding, which simplifies the connection steps, reduces the connection requirements, and can achieve quick connection in a variety of different environments. The sealing ring 6 is arranged in the connector 4, which can effectively seal the gap between the connector 4 and the fastening sleeve 1, prevent the fluid in the pipeline from leaking, and ensure the sealing and safety of the pipeline system. Whether it is liquid or gas transportation, it can ensure the stable operation of the system and reduce the waste of resources and environmental pollution risks caused by leakage. When it is necessary to maintain the pipeline system or replace part of the pipeline, since one end of the connector 4 is detachably arranged on the fastening sleeve 1, the connector 4 can be easily removed for repair or replacement, which greatly reduces the maintenance cost and workload.
[0030] As a further technical solution, the connecting portion 5 may be a flange or a thread.
[0031] In this embodiment, the connection portion 5 can be a flange or a thread, providing users with a variety of options. Flange connections usually have high connection strength and sealing properties, and are suitable for occasions with high connection requirements; threaded connections are easier to operate and do not require the use of large tools. They are suitable for situations where space is limited or quick connection is required, meeting the needs of different users in different scenarios and improving the versatility of pipe joints. Different types of piping systems may use different connection methods, and the connection portion 5 of the pipe joint can be a flange or a thread, which improves compatibility with other piping systems. Whether it is a pipe system connected to a flange or a pipe system connected to a thread, quick connection can be achieved through the pipe joint, expanding the application range of the pipe joint.
[0032] As a further technical solution, the connecting member 4 has several screw holes 7 on one side, and also includes: a fixing ring 8 is arranged on the fastening sleeve 1, and the fastening sleeve 1 has several through holes 9; there are several connecting bolts 10, and the connecting bolts 10 pass through the through holes 9 and are threadedly engaged with the screw holes 7.
[0033] In this embodiment, a retaining ring 8 engages with the fastening sleeve 1, and a connecting bolt 10 passes through the through-hole 9 and engages with the screw hole 7, providing an additional securing mechanism for the connection between the connector 4 and the fastening sleeve 1. This multi-fixing structure greatly enhances the stability of the pipe joint during use, effectively resisting the pressure of the fluid in the pipeline and external vibrations, ensuring a secure and reliable pipe connection. By adjusting the tightening of the connecting bolt 10, the tightness of the connection between the connector 4 and the fastening sleeve 1 can be adjusted.
[0034] As a further technical solution, the support pad 11 is annular, has a T-shaped cross-section, and is detachably disposed between the fixing ring 8 and the connector 4 .
[0035] In this embodiment, the fixing ring 8 cooperates with the fastening sleeve 1, and then the connecting bolt 10 passes through the through hole 9 and is threadedly engaged with the screw hole 7, providing an additional fixing method for the connection between the connector 4 and the fastening sleeve 1. This multiple fixing structure greatly enhances the stability of the pipe joint during use, and can effectively resist the pressure of the fluid in the pipeline and external vibrations, ensuring that the pipeline connection is firm and reliable. The use of the connecting bolt 10 makes the installation and disassembly process more convenient. During installation, it is only necessary to pass the connecting bolt 10 through the through hole 9 and screw it into the screw hole 7 to complete the fixation. The operation is simple and fast. When disassembly is required, it is only necessary to unscrew the connecting bolt 10 to easily separate the connector 4 from the fastening sleeve 1, which is convenient for repairing, replacing or cleaning the pipeline.
[0036] As a further technical solution, the fastening sleeve 1 has several fastening holes 12 and also includes: several supporting fastening bolts 13, which are detachably arranged on the fastening sleeve 1, and the supporting fastening bolts 13 are used to support and fix the first pipe section 2 or the second pipe section 3 in the fastening sleeve 1.
[0037] In this embodiment, the support and fixing bolts 13 are arranged on the fastening sleeve 1 through the fixing holes 12, and can support and fix the first pipe section 2 or the second pipe section 3 in the fastening sleeve 1 from multiple directions. This multi-point support method greatly improves the stability of the pipe section in the fastening sleeve 1, effectively preventing the pipe section from shaking or shifting during use, and ensuring a firm and reliable pipeline connection. Stable fixation can reduce the risk of leakage or rupture of the pipeline due to loose pipe sections, thereby improving the safety of the pipeline system. Reliable fixation is particularly important for ensuring the safety of personnel and equipment in some high-pressure, high-temperature or highly corrosive working environments.
[0038] As a further technical solution, the sealing ring 6 is made of elastic material, and the fastening sleeve 1 squeezes the sealing ring 6 after installation.
[0039] In this embodiment, the sealing ring 6 is made of an elastic material. When the clamping sleeve 1 is installed and squeezed against the sealing ring 6, it elastically deforms. This deformation allows the sealing ring 6 to fit tightly into the gap between the connector 4 and the clamping sleeve 1, effectively preventing fluid leakage within the pipeline. The elastic sealing ring 6 can adapt to varying pressure and temperature changes, maintaining a consistently good seal.
[0040] As a further technical solution, the sealing ring 6 is provided with a leak-proof groove 14 , which is used to contact and seal the gap between the fastening sleeve 1 and the connector 4 .
[0041] In this embodiment, the provision of the leak-proof groove 14 enables the sealing ring 6 to contact the fastening sleeve 1 and the connector 4 more accurately, effectively filling the gap between the two. This targeted design greatly improves the accuracy of the seal, reduces the possibility of leakage, and ensures that the sealing performance of the pipeline system reaches a higher level. The leak-proof groove 14 can prevent the sealing ring 6 from shifting during use. When the pipeline system is in operation, the sealing ring 6 may be subjected to a certain force due to the flow and pressure changes of the fluid. The leak-proof groove 14 can fix the sealing ring 6 in a specific position to prevent it from moving due to external forces, thereby ensuring the reliability of the seal.
[0042] As a further technical solution, the sealing ring 6 is provided with a guiding inclined surface 15 , which is used to guide the fastening sleeve 1 into the leak-proof groove 14 .
[0043] In this embodiment, the guide bevel 15 accurately guides the fastening sleeve 1 into the leak-proof groove 14, thereby ensuring that the sealing position between the sealing ring 6, the fastening sleeve 1, and the connector 4 is accurate. This effectively avoids poor sealing caused by installation deviations and improves the reliability and stability of the seal. The guide bevel 15 helps the installer better control the installation depth and position of the fastening sleeve 1, ensuring that the sealing ring 6 achieves the optimal sealing effect after installation. This increased precision is particularly important for pipeline systems with high sealing requirements, and can effectively improve the performance and safety of the pipeline system.
[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. A welding-free pipe quick connector for realizing a quick connection between a first pipe section (2) and a second pipe section (3), characterized in that: include: A fastening sleeve (1) is sleeved on one end of the first pipe section (2) or the second pipe section (3), and the inner wall of the fastening sleeve (1) abuts against the outer wall of the first pipe section (2) or the second pipe section (3); A connecting piece (4), one end of which is detachably arranged on the fastening sleeve (1), and the other end of which has a connecting portion (5); the connecting portions (5) of two different connecting pieces (4) are connected to each other; A sealing ring (6) is arranged in the connecting member (4), and the sealing ring (6) is used to seal the gap between the connecting member (4) and the fastening sleeve (1).
2. The welding-free pipe quick connector according to claim 1, characterized in that: The connecting portion (5) may be a flange or a thread.
3. The welding-free pipe quick connector according to claim 1, characterized in that: The connecting member (4) has a plurality of screw holes (7) on one side and further comprises: A fixing ring (8) is arranged on the fastening sleeve (1), and the fastening sleeve (1) has a plurality of through holes (9); There are a plurality of connecting bolts (10), which pass through the through holes (9) and are threadably engaged with the screw holes (7).
4. The welding-free pipe quick connector according to claim 3, characterized in that: Also includes: The support pad (11) is annular, has a T-shaped cross-section, and is detachably arranged between the fixing ring (8) and the connecting member (4).
5. The welding-free pipe quick connector according to claim 1, characterized in that: The fastening sleeve (1) is provided with a plurality of fastening holes (12) and further comprises: There are a plurality of supporting and fastening bolts (13) which are detachably arranged on the fastening sleeve (1). The supporting and fastening bolts (13) are used to support and fix the first pipe section (2) or the second pipe section (3) in the fastening sleeve (1).
6. The welding-free pipe quick connector according to claim 1, characterized in that: The sealing ring (6) is made of elastic material, and the fastening sleeve (1) squeezes the sealing ring (6) after being installed.
7. The welding-free pipe quick connector according to claim 1, characterized in that: The sealing ring (6) is provided with a leak-proof groove (14), and the leak-proof groove (14) is used to contact and seal the gap between the fastening sleeve (1) and the connecting piece (4).
8. The welding-free pipe quick connector according to claim 7, characterized in that: The sealing ring (6) is provided with a guide bevel (15), and the guide bevel (15) is used to guide the fastening sleeve (1) into the leak-proof groove (14).