Tensile and anti-seismic pipe fitting connecting structure
By introducing corrugated segments and flange designs into the pipe fitting connection structure, combined with the cohesive extrusion effect of the fastener, the deformation and leakage problems of existing flange connections under tension and vibration are solved, achieving higher shock and tensile performance and sealing.
Patent Information
- Application Number
- CN202421712779.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-19
AI Technical Summary
Due to the high stiffness of existing stainless steel flange connections, it is easy to generate tension or squeeze pressure during the thermal expansion and contraction of the pipeline, resulting in deformation or cracking of the connector.
A tensile and shock-resistant pipe fitting connection structure is designed, including joints, flanges, connecting rods and flanges. The design of corrugated segments absorbs and disperses vibration and impact. The flanges enhance the bearing capacity of the connecting rods and achieve cohesive extrusion effect through fasteners.
It improves the seismic and tensile strength of the pipeline system, reduces the risk of deformation and leakage of the connector, and significantly improves the sealing performance of the connection.
Smart Images
Figure CN222823918U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe connection, in particular to a tensile and shock-resistant pipe connection structure. Background Art
[0002] Pipe connectors are an integral part of the pipeline system. They are used to connect two or more pipelines to achieve transfer, connection and connection between pipelines. When two pipelines are connected, flange connection is often used, and the joints are made of cast iron, stainless steel, and steel. Flange connection has the advantage of high connection strength and is widely used in pipeline systems.
[0003] However, stainless steel flange connections have the characteristics of high rigidity, and pipes have the characteristics of thermal expansion and contraction. The pipes on both sides of the joint will produce a tensile or extrusive force on the joint. Since the conventional pipe connection structure has a high rigidity, it is very easy to deform and crack. Therefore, a tensile and shock-resistant pipe connection structure is proposed to solve the above problems. Utility Model Content
[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.
[0005] Therefore, one purpose of the present invention is to provide a tensile and shock-resistant pipe connection structure to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.
[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a tensile and shock-resistant pipe connection structure, including a joint and a flange, the two ends of the joint are fixedly connected with flanges, a connecting rod is passed through the flange, and the outer surface of the middle section of the connecting rod is fixedly connected with a plurality of flanges;
[0007] The end of the connecting rod is threadedly connected with a fastener, and the fastener is fastened to the outer surface of the flange;
[0008] The outer surface of the joint is fixedly connected with a corrugated section;
[0009] An expanded tube is arranged on the inner side of the joint, and the expanded tube comprises a head, an extension section and a tail section.
[0010] Preferably, any of the above schemes is that the joint and the flange are cast in one piece, and the flange is provided with a through hole for the connecting rod to pass through.
[0011] Adopting the above technical solution: the main body of the pipe connection structure is composed of a joint and a flange.
[0012] Preferably, from any of the above schemes, both ends of the connecting rod are threaded ends, and the connecting rods are arranged in a circumferential array about the joint.
[0013] Adopting the above technical solution: the premise of the deployment of this pipe connection structure is that the pipe end is inserted into the flared pipe, that is, the tail part is inserted first, then the extension part, and finally the head part. The head flares the pipe port. When the pipe port is inserted into the joint, the outer surface of the expanded pipe port is in close contact with the inner wall of the joint, and the full contact ensures the sealing. After the expansion, the outer surface of the pipe port and the inner wall of the joint form a full and close contact, which effectively reduces the leakage path, thereby significantly improving the sealing performance of the connection.
[0014] During the connection process, the pipe is first inserted into the tail, then the extension, and finally the head for flaring.
[0015] Preferably, according to any of the above schemes, the flanges are arranged in a circumferential array about the axis of the connecting rod.
[0016] Adopting the above technical solution: the core structure of this product is: joint, corrugated section, connecting rod, flange. The main body of this product is composed of two flanges and a joint. The joint is sleeved on the outside of the ports of the two pipes to be connected. The middle section of the outer surface of the joint has a corrugated section. The connecting rod is passed through the flange. The outer surface of the connecting rod has several flanges. The fasteners are fastened on the end of the connecting rod to give the joint a cohesive extrusion effect, so that the joint can hold the outer surface of the pipe to be connected to achieve the connection of the pipe ports;
[0017] The design of the corrugated section is similar to the structure of a bellows, which can absorb and disperse the vibration and impact of the pipeline caused by external forces such as earthquakes to a certain extent. The flexibility of the corrugated section can reduce the direct impact of vibration on the pipeline connector, thereby improving the seismic performance of the entire pipeline system. The deformation ability of the corrugated section can alleviate the direct effect of tension on the connector to a certain extent, thereby improving the tensile strength of the entire connector. The design of the connecting rod flange enhances the bearing capacity of the connecting rod when it is subjected to tension. The flange can disperse the tension and reduce the risk of the connecting rod breaking due to stress concentration.
[0018] Preferably, any of the above solutions is that the fastener is a nut, and the corrugated section is located on the outer surface of the middle section of the joint.
[0019] Preferably, any of the above schemes is that the material of the expanded tube is stainless steel, the head of the expanded tube faces the inside of the joint, and the diameter of the head is greater than the diameter of the tail.
[0020] Compared with the prior art, the advantages and beneficial effects of the utility model are:
[0021] 1. The tensile and earthquake-resistant pipe connection structure is arranged by the matching of a joint, a corrugated section, a connecting rod and a flange. The main body of the product consists of two flanges and a joint. The joint is sleeved on the outside of the ports of the two pipes to be connected. The middle section of the outer surface of the joint has a corrugated section. The flange is connected with a connecting rod. The outer surface of the connecting rod has several flanges. The end of the connecting rod is fastened with a fastener;
[0022] The design of the corrugated section is similar to the structure of a bellows, which can absorb and disperse the vibration and impact of the pipeline caused by external forces such as earthquakes to a certain extent. The flexibility of the corrugated section can reduce the direct impact of vibration on the pipeline connector, thereby improving the seismic performance of the entire pipeline system. The deformation ability of the corrugated section can alleviate the direct effect of tension on the connector to a certain extent, thereby improving the tensile strength of the entire connector. The design of the connecting rod flange enhances the bearing capacity of the connecting rod when it is subjected to tension. The flange can disperse the tension and reduce the risk of the connecting rod breaking due to stress concentration.
[0023] 2. The premise for the deployment of this tensile and earthquake-resistant pipe connection structure is that the pipe end is inserted into the flared pipe, that is, the tail is plugged in first, then the extension section, and finally the head. The head flares the pipe port. When the pipe port is inserted into the joint, the outer surface of the expanded pipe port is in close contact with the inner wall of the joint, fully contacting to ensure sealing. After flaring, the outer surface of the pipe port and the inner wall of the joint form a comprehensive and close contact, which effectively reduces the leakage path, thereby significantly improving the sealing performance of the connection.
[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0026] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;
[0027] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;
[0028] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;
[0029] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0030] In the figure: 1-joint, 2-flange, 3-connecting rod, 4-flange, 5-fastener, 6-bellows, 7-flared tube, 701-head, 702-extension section, 703-tail. DETAILED DESCRIPTION
[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] like Figure 1-4 As shown, the tensile and earthquake-resistant pipe connection structure comprises a joint 1 and a flange 2. The two ends of the joint 1 are fixedly connected with the flanges 2. A connecting rod 3 is passed through the flange 2. The outer surface of the middle section of the connecting rod 3 is fixedly connected with a plurality of flanges 4.
[0034] The end of the connecting rod 3 is threadedly connected with a fastener 5, and the fastener 5 is fastened to the outer surface of the flange 2;
[0035] The outer surface of the joint 1 is fixedly connected with a corrugated section 6;
[0036] An expanded tube 7 is disposed inside the joint 1 , and the expanded tube 7 includes a head 701 , an extension section 702 , and a tail 703 .
[0037] Embodiment 1: The joint 1 and the flange 2 are integrally cast, and a through hole is provided on the flange 2 for the connecting rod 3 to pass through. The main body of the pipe connection structure is composed of the joint 1 and the flange 2. The two ends of the connecting rod 3 are threaded ends, and the connecting rod 3 is arranged in a circumferential array about the joint 1. The deployment premise of the pipe connection structure is that the end of the pipe is inserted into the flared pipe 7, that is, the tail 703 is inserted first, then the extension section 702, and finally the head 701. The head 701 flares the pipe port. When the pipe port is inserted into the joint 1, the outer surface of the expanded pipe port is in close contact with the inner wall of the joint 1, and the full contact is ensured to ensure the sealing. After the expansion, the outer surface of the pipe port forms a full and close contact with the inner wall of the joint 1, which effectively reduces the leakage path, thereby significantly improving the sealing performance of the connection. During the connection process, the pipe is first inserted into the tail 703, then the extension section 702, and finally the head 701 for expansion.
[0038] Embodiment 2: The flange 4 is arranged in a circular array about the axis of the connecting rod 3. The fastener 5 is specifically a nut, and the corrugated section 6 is located on the outer surface of the middle section of the joint 1. The material of the flared tube 7 is stainless steel, the head of the flared tube 7 faces the inside of the joint 1, and the diameter of the head 701 is greater than the diameter of the tail 703. The design of the flange 4 of the connecting rod 3 enhances the bearing capacity of the connecting rod 3 when subjected to tension. The flange 4 can disperse the tension and reduce the risk of the connecting rod 3 breaking due to stress concentration.
[0039] The working principle of the utility model is as follows:
[0040] The pipe connection structure is deployed on the premise that the end of the pipe is inserted into the expanded pipe 7, that is, the tail 703 is inserted first, then the extension section 702, and finally the head 701. The head 701 expands the pipe port. When the pipe port is inserted into the joint 1, the outer surface of the expanded pipe port is in close contact with the inner wall of the joint 1, and the full contact ensures the sealing. After the expansion, the outer surface of the pipe port forms a full and close contact with the inner wall of the joint 1.
[0041] The main body of this product consists of two flanges 2 and a joint 1. The joint 1 is sleeved on the outside of the ports of the two pipes to be connected. The middle section of the outer surface of the joint 1 has a corrugated section 6. The flange 2 is passed through a connecting rod 3. The outer surface of the connecting rod 3 has a plurality of flanges 4. A fastener 5 is fastened on the end of the connecting rod 3, so that the joint 1 has a cohesive extrusion effect, so that the joint 1 can hug the outer surface of the pipe to be connected to achieve the connection of the pipe ports.
[0042] Compared with the prior art, the present invention has the following beneficial effects:
[0043] 1. The tensile and earthquake-resistant pipe connection structure is provided by the matching arrangement of the joint 1, the corrugated section 6, the connecting rod 3, and the flange 4. The main body of the product is composed of two flanges 2 and a joint 1. The joint 1 is sleeved on the outside of the ports of the two pipes to be connected. The middle section of the outer surface of the joint 1 has a corrugated section 6. The flange 2 is connected with the connecting rod 3. The outer surface of the connecting rod 3 has a plurality of flanges 4. The end of the connecting rod 3 is fastened with a fastener 5.
[0044] The design of the corrugated section 6 is similar to the structure of a bellows, which can absorb and disperse the vibration and impact of the pipeline caused by external forces such as earthquakes to a certain extent. The flexibility of the corrugated section 6 can reduce the direct impact of vibration on the pipeline connector, thereby improving the seismic performance of the entire pipeline system. The deformation ability of the corrugated section 6 can alleviate the direct effect of tension on the connector to a certain extent, thereby improving the tensile strength of the entire connector. The design of the flange 4 of the connecting rod 3 enhances the bearing capacity of the connecting rod 3 when it is subjected to tension. The flange 4 can disperse the tension and reduce the risk of the connecting rod 3 breaking due to stress concentration.
[0045] 2. The premise for deploying the tensile and shock-resistant pipe connection structure is that the pipe end is inserted into the expanded pipe 7, that is, the tail 703 is inserted first, then the extension section 702, and finally the head 701. The head 701 expands the pipe port. When the pipe port is inserted into the joint 1, the outer surface of the expanded pipe port is in close contact with the inner wall of the joint 1, and the full contact ensures the sealing. After the expansion, the outer surface of the pipe port is in full and close contact with the inner wall of the joint 1, which effectively reduces the leakage path, thereby significantly improving the sealing performance of the connection.
Claims
1. A tensile and shock-resistant pipe connection structure, characterized in that: It comprises a joint (1) and a flange (2), wherein the two ends of the joint (1) are fixedly connected to the flanges (2), a connecting rod (3) is passed through the flange (2), and a plurality of flanges (4) are fixedly connected to the outer surface of the middle section of the connecting rod (3); The end of the connecting rod (3) is threadedly connected to a fastener (5), and the fastener (5) is fastened to the outer surface of the flange (2); A corrugated section (6) is fixedly connected to the outer surface of the joint (1); An expanded tube (7) is provided on the inner side of the joint (1), and the expanded tube (7) comprises a head (701), an extension section (702), and a tail (703).
2. A tensile and shock-resistant pipe connection structure according to claim 1, characterized in that: The joint (1) and the flange (2) are integrally cast, and the flange (2) is provided with a through hole for the connecting rod (3) to pass through.
3. A tensile and shock-resistant pipe connection structure as claimed in claim 2, characterized in that: Both ends of the connecting rod (3) are threaded ends, and the connecting rods (3) are arranged in a circumferential array about the joint (1).
4. A tensile and shock-resistant pipe connection structure as claimed in claim 3, characterized in that: The flanges (4) are arranged in a circular array about the axis of the connecting rod (3).
5. A tensile and shock-resistant pipe connection structure as claimed in claim 4, characterized in that: The fastener (5) is specifically a nut, and the corrugated section (6) is located on the outer surface of the middle section of the joint (1).
6. A tensile and shock-resistant pipe connection structure as claimed in claim 5, characterized in that: The material of the flared tube (7) is stainless steel, the head of the flared tube (7) faces the inside of the joint (1), and the diameter of the head (701) is greater than the diameter of the tail (703).