Ferrule type pipe joint
By designing the ferrule-type pipe joint, the safety hazards of the existing welding connection methods when connecting flammable and explosive items at high altitudes are solved, and the pipe connection effect without open flames and convenient operation is achieved.
Patent Information
- Application Number
- CN202421979983.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-15
AI Technical Summary
Existing pipeline connection methods such as welding have high equipment requirements, difficulty in using high altitude operations, and safety hazards when connecting flammable and explosive items.
A ferrule-type tube joint is designed, including the joint body, ferrule and nut. The clamp sleeve is connected to one end of the external pipe and is inserted into the connecting pipe section of the joint body. The nut is connected to the connecting pipe section. The clamp sleeve is pressed on the joint body by tightening the nut to achieve sealing.
The design does not require open flame operation, is suitable for high altitude operations, and avoids the risk of combustion or explosion when connecting flammable and explosive items, improving safety and operational convenience.
Smart Images
Figure CN222880586U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pipe joint design, and in particular to a ferrule-type pipe joint. Background Art
[0002] The common way to connect pipes is to weld the two ends of the pipes together. However, this method requires a welding machine. In the case of high-altitude operations, the welding machine is difficult to carry and cannot be welded, which requires high equipment requirements. If the pipeline is used to transport flammable and explosive materials such as oil and natural gas, welding is prone to combustion or explosion when there is oil and gas residue in the pipeline, which poses a safety hazard. Summary of the invention
[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0004] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a ferrule-type pipe fitting, including: a fitting body, which forms at least a first connecting pipe segment, a fastening pipe segment and a second connecting pipe segment from one end to the other end; a ferrule, which is sleeved on one end of an external pipe, and the ferrule is inserted into the first connecting pipe segment or the second connecting pipe segment; a nut, which is sleeved on the external pipe, and the nut is connected to the first connecting pipe segment or the second connecting pipe segment, and the end of the nut away from the fastening pipe segment abuts against the ferrule, and applies a force to the ferrule to approach the fastening pipe segment.
[0005] Furthermore, an annular groove pipe section is formed between the first connecting pipe section and the fastening pipe section, and a first sealing ring is sleeved on the annular groove pipe section.
[0006] Furthermore, a second sealing ring is sleeved on one end of the second connecting pipe section close to the fastening pipe section.
[0007] Furthermore, the outer wall of the fastening pipe section forms a hexagonal convex edge.
[0008] Furthermore, the inner diameter of the second connecting pipe section is larger than the inner diameter of the first connecting pipe section.
[0009] Furthermore, an end of the nut away from the second connecting pipe section forms a closing portion, and the closing portion shrinks toward the axis of the nut and fits against the outer wall of the external pipe.
[0010] The beneficial effects of this application are:
[0011] The ferrule is fastened to the end of the external pipe, and then inserted into the first connecting pipe section or the second connecting pipe section to connect the external pipe with the joint body. The nut abuts against the ferrule and is connected to the first connecting pipe section or the second connecting pipe section to squeeze the ferrule to the joint body for sealing. During the connection process, the worker only needs to tighten the nut with a wrench. The wrench is small and easy to carry, and there is no open flame during the operation, which is conducive to fire prevention, explosion prevention and high-altitude operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.
[0013] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.
[0014] In the attached picture:
[0015] Figure 1 is an overall schematic diagram according to an embodiment of the present application;
[0016] Figure 2 is an overall schematic diagram according to another embodiment;
[0017] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the nut.
[0018] Reference numerals:
[0019] 1. Connector body; 2. Ferrule; 3. Nut; 4. First connecting pipe section; 5. Fastening pipe section; 6. Second connecting pipe section; 7. First sealing ring; 8. Second sealing ring; 9. Closing part; 10. External pipe. DETAILED DESCRIPTION
[0020] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0021] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0022] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0023] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0024] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0025] Reference Figure 1-3 ,
[0026] A ferrule 2 type pipe joint, comprising: a joint body 1, a ferrule 2 and a nut 3. The joint body 1 forms a first connecting pipe section 4, a fastening pipe section 5 and a second connecting pipe section 6 from one end to the other end. The first connecting pipe section 4 and the second connecting pipe section 6 are respectively formed with external threads. The fastening pipe section 5 is used to contact with a wrench, and the worker twists the wrench to tighten the pipe section 5 to cause the entire joint body 1 to rotate. The ferrule 2 is sleeved on one end of an external pipe 10, specifically, the ferrule 2 and the external pipe 10 are interference fit to achieve the tightness of the connection between the ferrule 2 and the external pipe 10. One ferrule 2 pulls one external pipe 10 into the first connecting pipe section 4, and the other ferrule 2 pulls the other external pipe 10 into the second connecting pipe section 6, so that the two external pipes 10 are connected through the joint body 1. The nut 3 is sleeved on the external pipe 10, and the worker twists the wrench to thread the nut 3 onto the first connecting pipe section 4 or the second connecting pipe section 6. After the nut 3 is tightened, the ferrule 2 is pressed onto the joint body 1 to complete the fixation of the ferrule 2 and the external pipe 10.
[0027] In another embodiment, a ring groove pipe section is further formed between the first connecting pipe section 4 and the fastening pipe section 5, and a first sealing ring 7 is sleeved on the ring groove pipe section to prevent the first sealing ring 7 from falling off. After the worker tightens the nut 3 on the first connecting pipe section 4, the nut 3 squeezes the first sealing ring 7 near one end of the fastening pipe section 5, and the first sealing ring 7 seals the gap between the nut 3 and the fastening pipe section 5.
[0028] Specifically, a second sealing ring 8 is sleeved on one end of the second connecting pipe section 6 close to the fastening pipe section 5, and the second sealing ring 8 can slide out from the second connecting pipe section 6 along the axis of the second connecting pipe section 6 for easy replacement. After the worker tightens the nut 3 on the second connecting pipe section 6, the nut 3 closes one end of the fastening pipe section 5 and squeezes the second sealing ring 8, and the second sealing ring 8 seals the gap between the nut 3 and the fastening pipe section 5.
[0029] Specifically, the inner diameter of the second connecting pipe section 6 is larger than the inner diameter of the first connecting pipe section 4. The worker connects the first connecting pipe section 4 to the external pipe 10 through which the liquid or gas flows out, and connects the second connecting pipe section 6 to the external pipe section through which the liquid or gas will flow in. The liquid or gas first flows into the first connecting pipe section 4, passes through the fastening pipe section 5, and then enters the second connecting pipe section 6. As the inner diameter of the liquid or gas passes through the pipe section gradually increases, the flow rate and pressure decrease, and the impact on the subsequent external pipe 10 that flows in is relatively small.
[0030] Specifically, a closing portion 9 is formed at one end of the nut 3 away from the second connecting pipe section 6, and the closing portion 9 shrinks toward the axis of the nut 3 and fits the outer wall of the external pipe 10. When the nut 3 is tightened on the first connecting pipe section 4 or the second connecting pipe section 6, the closing portion 9 presses the ferrule 2 against the connector body 1 to prevent the ferrule 2 from falling off.
[0031] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.
Claims
1. A ferrule type pipe joint, characterized in that: include: The joint body at least forms a first connecting pipe section, a fastening pipe section and a second connecting pipe section from one end to the other end; A ferrule, sleeved on one end of the external pipe, and the ferrule is inserted into the first connecting pipe section or the second connecting pipe section; A nut is sleeved on an external pipe, the nut is connected to the first connecting pipe section or the second connecting pipe section, one end of the nut away from the fastening pipe section abuts against the ferrule and applies a force to the ferrule to approach the fastening pipe section.
2. The ferrule type pipe joint according to claim 1, characterized in that: An annular groove pipe section is also formed between the first connecting pipe section and the fastening pipe section, and a first sealing ring is sleeved on the annular groove pipe section.
3. The ferrule type pipe joint according to claim 1 or 2, characterized in that: A second sealing ring is sleeved on one end of the second connecting pipe section close to the fastening pipe section.
4. The ferrule type pipe joint according to claim 3, characterized in that: The outer wall of the fastening pipe section forms a hexagonal convex edge.
5. The ferrule type pipe joint according to claim 4, characterized in that: The inner diameter of the second connecting pipe section is larger than the inner diameter of the first connecting pipe section.
6. The ferrule type pipe joint according to claim 5, characterized in that: An end of the nut away from the second connecting pipe section forms a closing portion, and the closing portion shrinks toward the axis of the nut and fits the outer wall of the external pipe.