Pipeline sealing connection structure for narrow space
By using structures such as the stop ring, baffle, convex ring and clamping shell in a narrow space, the reliability and installation difficulty of pipeline connections in a narrow space are solved, and efficient and reliable sealing connections are achieved, meeting the needs of high-integration mechanical products.
Patent Information
- Application Number
- CN202422828093.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In a narrow space, it is difficult for the existing technology to achieve reliable and efficient sealing connections of gas and liquid conveying pipelines. Conventional connection methods occupy a large space and are difficult to install, which cannot meet the needs of high-integration mechanical products.
The structural design of the stop ring, baffle, convex ring, clamp sleeve and clamp shell is adopted. The stop ring abuts the inner wall of the pipe, and the convex ring and clamp sleeve form a seal. The clamp shell locking retaining ring is fixed to ensure that the joint is stable in a narrow space.
It realizes efficient and reliable pipeline connection in a narrow space, reduces installation difficulty, meets the sealed connection needs of high-integration mechanical products, and improves the efficiency and reliability of the system.
Smart Images
Figure CN223306485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing connections, in particular to a pipeline sealing connection structure for a narrow space. Background Art
[0002] At present, the non-electrically driven machinery field has increasingly higher requirements for external dimensions and structural accuracy. Various mechanical products need to realize more functions under the condition of certain volume and appearance. This directly leads to the higher and higher integration of various components. The installation space of gas and liquid pipelines used to connect various components is also getting smaller and smaller. Gas and liquid pipelines are the "aorta" of power transmission. In order to facilitate installation, disassembly and maintenance, one pipeline is usually split into multiple pipelines and sealed with a reliable connection method.
[0003] Commonly used pipeline sealing connection methods include cone or ball head hard seals and flange bolt soft seals. These connection structures require a relatively large outer diameter envelope to ensure joint reliability. Taking the cone connection as an example, referring to the hard pipe standard HB4-1, the minimum inner diameter of the pipe is 4.4mm, the maximum outer diameter of the pipe body is approximately 6mm, and the matching outer nut is M12×1, with a maximum hexagonal outer diameter of approximately 16.17mm. In other words, the maximum outer diameter envelope of this connection is approximately 2.7 times the maximum inner diameter of the pipe. A hose that can withstand 10.5MPa pressure with this inner diameter has an outer diameter of approximately 12mm, but also requires an M12×1 outer nut. To meet the high integration requirements of gas and liquid systems, pipeline layouts often have some special confined spaces, where the pipeline layout space may be only about 1 times the outer diameter of the pipe body. Obviously, in these specific confined spaces, when using pipelines for gas and liquid transportation, conventional connection methods are difficult to achieve a removable seal without having to disconnect the pipeline. Utility Model Content
[0004] The purpose of the utility model is to overcome the disadvantages of the prior art that it is difficult to connect pipelines in a narrow space, and to provide a pipeline sealing connection structure for a narrow space.
[0005] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical solutions: a pipeline sealing connection structure for a narrow space, comprising two joints for being plugged into the interior of a pipeline, a check ring for connecting to the interior of the pipeline is provided on the outside of one end of the joint, a baffle abutting the end of the pipeline is provided on the side wall of the joint, the other ends of the two joints abut against each other through a connecting device, and a fastening device for stabilizing the abutment of the two joints is provided on the outside of the connecting device.
[0006] Furthermore, the end surface of the connector inserted into the pipe is provided with an inclined surface for facilitating insertion.
[0007] Furthermore, the connecting device includes a convex ring provided at the abutment position of the two joints, the side surface of the convex ring is higher than the side surface of the joint, and the side surface of the convex ring is provided with a groove for installing a sealing ring.
[0008] Furthermore, a clamping sleeve is sleeved on the outer side surface of the convex ring.
[0009] Furthermore, the fastening device includes a clamping shell arranged outside the clamping sleeve and the joint, and the clamping shell is provided with two parts that are buckled with each other.
[0010] Furthermore, a receiving cavity for receiving the clamping sleeve and the convex ring is provided in the middle of the clamping shell, and a retaining ring for locking the two clamping shells is provided on the side of the clamping shell.
[0011] The beneficial effects of the embodiments of the present invention are as follows: a groove is designed on the side of the convex ring for installing an O-ring or other type of sealing element, ensuring that the side of the convex ring and the clamping sleeve can form an effective seal when the two joints are connected; the clamping sleeve is sleeved on the outer side of the convex ring, and provides a preliminary tightening effect by tightly wrapping the convex ring and a part of the joint, forming a sealing structure on the outer side of the convex ring, connecting the convex rings of the two joints, and ensuring the stability of the joints during the connection process; the clamping shell is divided into two parts that are interlocked and wrapped around the outside of the clamping sleeve and the joint, and the two clamping shell parts can be firmly fixed together by the locking retaining ring, thereby achieving the tightening of the entire connection structure, ensuring the stability and reliability of the connection structure in a narrow space, greatly reducing the occupied space, being suitable for use in a narrow space, and also reducing the difficulty of installation, and being able to achieve efficient and reliable pipeline connection in a narrow space, not only meeting the integration requirements of the gas and liquid transportation system, but also greatly simplifying the installation and maintenance process, and improving the efficiency and reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model in use state;
[0013] Figure 2 This is a schematic cross-sectional view of the utility model;
[0014] Figure 3 This is a schematic structural diagram of the utility model from another angle;
[0015] In the figure: 1. Pipe; 2. Joint; 201. Check ring; 202. Baffle; 203. Raised ring; 3. Clamping sleeve; 4. Clamping housing; 401. Retaining ring. DETAILED DESCRIPTION
[0016] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0017] See also Figures 1 to 3 The embodiment of the present invention discloses a pipeline sealing connection structure for a narrow space, including a joint 2 arranged between two pipes 1, and a connecting device and a fastening device for enhancing the stability of the connection of the joint 2. Taking the hose as an example, since the space at the connection is small and the diameter of the pipe 1 is also small, the conventional connection structure cannot be applied. Therefore, a joint 2 with a cylindrical shape as a whole is adopted. One end of the joint 2 can be inserted into the interior of the pipe 1, and a check ring 201 is provided on the outer wall of the inserted end. There are multiple check rings 201. The edge of the check ring 201 is barbed, and the edge of the check ring 201 is set to have a small elasticity, which is used to abut against the inner wall of the pipe 1. After the check ring 201 is inserted into the interior of the pipe 1, it abuts against the interior of the pipe 1 under the action of pressure to prevent the end of the joint 2 from falling out from the interior of the pipe 1, ensuring the stability of the connection at the joint of the joint 2, and helping to maintain the stable operation of the system.
[0018] A baffle 202 is also provided at the tail end of the check ring 201 on the side wall of the connector 2. When the connector 2 is fully inserted into the pipe 1, the baffle 202 tightly abuts against the end of the pipe 1, forming a preliminary axial positioning, ensuring sufficient insertion length inside the pipe 1, ensuring the stable installation of the connector 2 within the pipe 1, preventing it from shifting during use, and enhancing the overall structural strength. To facilitate the smooth insertion of the connector 2 into the pipe 1, the end face of the insertion end is designed as a bevel, reducing resistance during insertion, making the installation process smoother and improving installation efficiency.
[0019] The connecting device includes a convex ring 203 arranged on the abutting surface of each joint 2. The side of the convex ring 203 is higher than the main part of the joint 2, forming a circle of protruding edges, which not only enhances the structural strength of the joint 2, but also provides reliable support for bearing and fixing the sealing ring. A groove is designed on the side of the convex ring 203 for installing an O-ring or other type of sealing element, ensuring that the side of the convex ring 203 and the clamping sleeve can form an effective seal when the two joints 2 are connected, thereby ensuring the sealing performance. The fastening device includes a clamping sleeve 3 and a clamping shell 4. The clamping sleeve 3 is sleeved on the outer side of the convex ring 203, and provides a preliminary fastening effect by tightly wrapping the convex ring 203 and a part of the joint 2. A sealing structure is formed on the outer side of the convex ring 203, connecting the convex rings 203 of the two joints 2 to ensure the stability of the joints 2 during the connection process. When in use, first insert the joints 2 into the inside of the pipe 1 respectively, and put the clamping sleeve 3 on the convex ring 203 of one joint 2, then abut the convex rings 203 of the two joints 2, and slide the clamping sleeve 3 to connect the two convex rings 203 to ensure the use effect.
[0020] The clamping housing 4 is divided into two parts that are interlocked and wrapped around the outside of the clamping sleeve 3 and the connector 2. A receiving cavity that fits the convex ring 203 is provided in the middle position of the clamping housing 4 to accurately accommodate the clamping sleeve 3 and the convex ring 203, ensuring a compact and stable structure. This not only improves the strength of the entire connection structure but also helps to simplify the installation process. A wire retaining ring 401 is provided on the side of the clamping housing 4 (the wire retaining ring 401 can be selected by referring to GB 895.2). By locking the retaining ring 401, the two parts of the clamping housing 4 can be firmly fixed together, thereby achieving the tightening of the entire connection structure and ensuring the stability and reliability of the connection structure in a narrow space. The use of two separate semi-cylindrical clamping housings 4 to connect and tighten the two connectors 2 from the outside greatly reduces the occupied space, making it suitable for use in narrow spaces and reducing the difficulty of installation. It can achieve efficient and reliable pipeline connection in a narrow space, not only meeting the integration requirements of gas and liquid transportation systems, but also greatly simplifying the installation and maintenance process, and improving the efficiency and reliability of the overall system.
[0021] During use, first, insert the two connectors 2 into the ends of the pipe 1 to be connected, ensuring that the check ring 201 and baffle 202 are properly installed. Then, align the raised rings 203 of the two connectors 2 and install the sealing rings in the grooves. Next, slide the clamping sleeve 3 over the raised rings 203 and initially adjust the position. Finally, snap the two parts of the clamping housing 4 together and complete the final tightening with the locking retaining ring 401.
[0022] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0024] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.
[0025] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.
Claims
1. A pipeline sealing connection structure for a narrow space, characterized by: The invention comprises two joints (2) for being plugged into the interior of a pipeline (1); a check ring (201) for connecting to the interior of the pipeline (1) is provided on the outside of one end of the joint (2); a baffle (202) for abutting against the end of the pipeline (1) is provided on the side wall of the joint (2); the other ends of the two joints (2) are abutted against each other through a connecting device; a fastening device for stabilizing the abutment of the two joints (2) is provided on the outside of the connecting device.
2. The pipeline sealing connection structure for a narrow space according to claim 1, characterized in that: The end surface of the joint (2) inserted into the interior of the pipe (1) is provided with an inclined surface for easy insertion.
3. The pipeline sealing connection structure for a narrow space according to claim 1, characterized in that: The connecting device comprises a convex ring (203) arranged at the abutment position of two joints (2), the side surface of the convex ring (203) being higher than the side surface of the joint (2), and a groove for installing a sealing ring being provided on the side surface of the convex ring (203).
4. The pipeline sealing connection structure for a narrow space according to claim 3, characterized in that: The outer side surface of the convex ring (203) is sleeved with a clamping sleeve (3).
5. The pipeline sealing connection structure for a narrow space according to claim 4, characterized in that: The fastening device comprises a clamping shell (4) arranged outside the clamping sleeve (3) and the joint (2), and the clamping shell (4) is provided with two parts that are buckled with each other.
6. The pipeline sealing connection structure for a narrow space according to claim 5, characterized in that: An accommodating cavity for accommodating a clamping sleeve (3) and a convex ring (203) is provided in the middle of the clamping shell (4), and a retaining ring (401) for locking the two clamping shells (4) is provided on the side of the clamping shell (4).