Pipeline connecting structure

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a pipeline connection structure. According to the technical scheme, the pipeline connecting device comprises a head connecting assembly and a tail connecting assembly, wherein the head connecting assembly and the tail connecting assembly are connected to the two ends of a pipeline; the head connecting assembly comprises a connecting pipe body and a connecting protrusion, and the connecting pipe body is fixed to the end of the pipeline. The connecting bulge is arranged on the outer circumferential surface of the connecting pipe body; the tail connecting assembly comprises a butt joint pipe body, a fixing ring and a locking bolt, the butt joint pipe body is fixed to the other end of the pipeline, and the fixing ring is fixed to the end of the butt joint pipe body and is coaxial with the butt joint pipe body. The head connecting assembly and the tail connecting assembly are installed at the two ends of the pipeline, when the pipelines are in butt joint, butt joint can be achieved through the head connecting assembly and the tail connecting assembly, the problems that a traditional dredging pipeline is difficult in butt joint and prone to leakage are solved, and the pipelines can be conveniently connected and installed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pipeline connection structure. Background Art

[0002] Dredging is the underwater earthwork excavation project using manpower or machinery to clear, widen or deepen rivers, lakes and other water areas. It is widely used in dredging rivers and channels, desilting, deepening, widening and cleaning existing waterways and ports, etc. Dredging projects play a very important role in the progress of human society, environmental improvement and economic development.

[0003] During the implementation of dredging projects, it is necessary to bury pipes to facilitate drainage. Most traditional pipe joint structures are fixed by flanges and bolts, or directly welded and fixed. This method requires precise docking, has a small fault tolerance, and is difficult to disassemble and maintain later. Utility Model Content

[0004] In view of the problems existing in the background technology, the utility model proposes a pipeline connection structure which is convenient for installing pipelines and has a fault-tolerant space.

[0005] The technical solution of the utility model: a pipeline connection structure, comprising a head connection component and a tail connection component, wherein the head connection component and the tail connection component are connected to two ends of the pipeline;

[0006] The head connection assembly includes a connection pipe body and a connection protrusion, wherein the connection pipe body is fixed to the end of the pipe; the connection protrusion is arranged on the outer circumferential surface of the connection pipe body;

[0007] The tail connection assembly includes a butt joint body, a fixing ring and a locking bolt, wherein the butt joint body is fixed to the other end of the pipeline, the fixing ring is fixed to the end of the butt joint body and is coaxially arranged with the butt joint body; the locking bolt is fixed to the surface of the fixing ring and corresponds to the connecting protrusion;

[0008] When the pipes are connected end to end, the connecting pipe body of the head connecting assembly is inserted into the butt-jointed pipe body and fixed by locking bolts and nuts.

[0009] In an optional embodiment, both ends of the pipeline have connecting flanges; the head connecting assembly and the tail connecting assembly respectively have a first flange and a second flange, and the head connecting assembly and the tail connecting assembly are respectively connected to the connecting flange of the pipeline through the first flange, the second flange and a bolt assembly.

[0010] In an optional embodiment, a sealing ring groove is provided on one side surface of the second flange plate and the first flange plate which are in contact with the connecting flange, and a sealing ring is provided inside the connecting flange.

[0011] In an optional embodiment, the sealing ring groove is trapezoidal.

[0012] In an optional embodiment, the butt joint body transitions to the fixing ring through an expansion curved surface, so that the pipe diameter at the connection between the butt joint body and the pipeline is minimized;

[0013] The hole diameter of the fixing ring is larger than the inner diameter of the pipe of the butt joint pipe body.

[0014] In an optional embodiment, a sealing ring is fixed on the surface of the fixing ring, and the sealing ring is coaxially arranged with the butt joint pipe body and extends in the direction of the smallest diameter of the butt joint pipe body.

[0015] In an optional embodiment, a sealing rubber is provided between the sealing ring and the extended curved surface, and the sealing rubber has a bent portion;

[0016] When the head connection assembly is inserted into the tail connection assembly, the sealing rubber is located in the gap between the extended curved surface and the connection pipe body, so that the extended curved surface and the connection pipe body are sealed.

[0017] In an optional embodiment, the middle portion of the connecting protrusion has a through hole, the surface of the fixing ring has a groove, and the locking bolt is fixed in the groove;

[0018] When the head connection assembly is docked with the tail connection assembly, the end of the connection protrusion extends into the groove, and the locking bolt passes through the through hole and cooperates with the nut thread.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] The utility model installs a head connection component and a tail connection component at both ends of the pipeline. When the pipelines are butt-jointed, the head connection component and the tail connection component can be butt-jointed, thereby solving the problem that the conventional dredging pipeline butt-jointing is difficult and easy to leak. The head connection component and the tail connection component are first installed at both ends of the pipeline. When the pipelines are connected, the head connection component is inserted into the tail connection component of another pipeline, the locking bolt passes through the connection protrusion and is connected by the nut, so that the head connection component and the tail connection component are tightly fixed, thereby facilitating the connection and installation of the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the pipeline installation structure in the embodiment of the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0023] Figure 3 This is a schematic diagram of the head connection component and the tail connection component being connected in the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation of the connecting protrusion in the embodiment of the utility model.

[0025] Figure numerals: 10 is the head connection assembly; 101 is the first flange; 102 is the connecting pipe body; 103 is the connecting protrusion; 20 is the tail connection assembly; 201 is the second flange; 202 is the butt pipe body; 203 is the expansion surface; 204 is the fixing ring; 205 is the sealing ring; 206 is the sealing rubber; 207 is the sealing ring groove; 208 is the locking bolt; 209 is the nut; 100 is the pipe; 110 is the connecting flange. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "cross", "inside", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 and Figure 3 As shown, a pipeline connection structure proposed in an embodiment of the utility model includes a head connection component 10 and a tail connection component 20, and the head connection component 10 and the tail connection component 20 are connected to both ends of a pipeline 100;

[0029] It should be noted that by installing the head connection assembly 10 and the tail connection assembly 20 at both ends of the pipe 100, when the pipes 100 are docked, they can be docked through the head connection assembly 10 and the tail connection assembly 20, which solves the problem that traditional dredging pipes are difficult to dock and prone to leakage.

[0030] Furthermore, the head connection assembly 10 includes a connection pipe body 102 and a connection protrusion 103. The connection pipe body 102 is fixed to the end of the pipe 100; the connection protrusion 103 is arranged on the outer circumferential surface of the connection pipe body 102;

[0031] The tail connection assembly 20 includes a butt joint body 202, a fixing ring 204 and a locking bolt 208. The butt joint body 202 is fixed to the other end of the pipeline 100. The fixing ring 204 is fixed to the end of the butt joint body 202 and is coaxially arranged with the butt joint body 202. The locking bolt 208 is fixed to the surface of the fixing ring 204 and corresponds to the connection protrusion 103.

[0032] When the pipes 100 are connected end to end, the connecting pipe body 102 of the head connecting assembly 10 is inserted into the butt pipe body 202 and fixed by means of locking bolts 208 and nuts 209 .

[0033] During the installation process, the head connection component 10 and the tail connection component 20 are first installed at both ends of the pipe 100. When the pipe 100 is connected, the head connection component 10 is inserted into the tail connection component 20 of another pipe 100, and the locking bolt 208 passes through the connecting protrusion 103 and is connected by the nut 209, so that the head connection component 10 and the tail connection component 20 are tightly fixed, thereby facilitating the connection and installation of the pipe 100 and improving the installation efficiency.

[0034] Furthermore, both ends of the pipeline 100 have connecting flanges 110; the pipeline 100 is connected to the head connecting assembly 10 and the tail connecting assembly 20 through the connecting flanges 110. In this embodiment, the head connecting assembly 10 and the tail connecting assembly 20 respectively have a first flange 101 and a second flange 201, and the head connecting assembly 10 and the tail connecting assembly 20 are respectively connected to the connecting flange 110 of the pipeline 100 through the first flange 101, the second flange 201 and the bolt assembly.

[0035] Typically, the connecting flange 110 is welded to fix the two ends of the pipeline 100, and the first flange 101 and the second flange 201 correspond to the hole positions of the connecting flange 110. When the first flange 101 or the second flange 201 corresponds to the connecting flange 110, the first flange 101 and the connecting flange 110 or the second flange 201 and the connecting flange 110 can be connected and fixed by a bolt assembly.

[0036] In this embodiment, after the first flange 101 and the connecting flange 110 or the second flange 201 and the connecting flange 110 are connected, the connecting positions thereof can be further welded and fixed to improve the structural strength and prevent leakage of the transported medium.

[0037] Alternatively, if Figure 2 As shown, a sealing ring groove 207 is provided on the surface of one side where the second flange 201 and the first flange 101 are in contact with the connecting flange 110, and a sealing ring is provided in the connecting flange 110. Usually, when the flanges are connected, a sealing gasket is usually provided between the flanges to ensure the sealing between the flanges, but this installation method is relatively difficult, the sealing ring cannot be pre-fixed, and the sealing ring is easy to deviate during installation. In this embodiment, by providing a sealing ring groove 207 on the surface of the second flange 201 and the first flange 101, it is convenient to install the sealing ring, and the sealing ring groove 207 is trapezoidal to prevent the sealing ring from falling off during installation. After the sealing ring is installed, it is connected and fixed between the first flange 101 and the connecting flange 110 or the second flange 201 and the connecting flange 110, and at least a part of the sealing ring extends into the gap between the first flange 101 and the connecting flange 110 or the second flange 201 and the connecting flange 110, so as to achieve a sealing effect.

[0038] Optionally, the butt joint body 202 transitions to the fixing ring 204 through the expansion curved surface 203, so that the pipe diameter at the connection between the butt joint body 202 and the pipeline 100 is minimized;

[0039] The aperture of the fixing ring 204 is larger than the inner diameter of the butt-joint pipe body 202. In order to facilitate the connection between the pipes 100, the head connection assembly 10 is more convenient to connect with the tail connection assembly 20 by extending the curved surface 203 and setting the aperture of the fixing ring 204 larger than the inner diameter of the butt-joint pipe body 202, so as to improve the tolerance of the head connection assembly 10 inserted into the tail connection assembly 20, and as the head connection assembly 10 is continuously inserted, the head connection assembly 10 is continuously adjusted to a coaxial state with the tail connection assembly 20.

[0040] Furthermore, combined with Figure 3 As shown, a sealing ring 205 is fixed on the surface of the fixing ring 204 . The sealing ring 205 is coaxially arranged with the butt joint pipe body 202 and extends in the direction of the smallest pipe diameter of the butt joint pipe body 202 .

[0041] A sealing rubber 206 is provided between the sealing ring 205 and the extended curved surface 203, and the sealing rubber 206 has a bent portion;

[0042] When the head connection assembly 10 is inserted into the tail connection assembly 20 , the sealing rubber 206 is located in the gap between the extended curved surface 203 and the connection tube body 102 , so that the extended curved surface 203 and the connection tube body 102 are sealed.

[0043] When the pipeline 100 is connected end to end, that is, the head connecting component 10 is inserted into the tail connecting component 20, the sealing rubber 206 is squeezed by the connecting tube body 102 so that the bent portion of the sealing rubber 206 contacts the surface of the connecting tube body 102, thereby forming a sealing structure between the extended curved surface 203 and the sealing rubber 206 and the connecting tube body 102. During the process of conveying the medium through the pipeline, the medium in the pipeline cannot leak through the connection between the head connecting component 10 and the tail connecting component 20, thereby improving the sealing performance of the device.

[0044] Combination Figure 4 As shown, the middle of the connecting protrusion 103 has a through hole, the surface of the fixing ring 204 has a groove, and the locking bolt 208 is fixed in the groove;

[0045] When the head connection assembly 10 is docked with the tail connection assembly 20 , the end of the connection protrusion 103 extends into the groove, and the locking bolt 208 passes through the through hole and is threadedly engaged with the nut 209 .

[0046] When the head connection component 10 is inserted into the tail connection component 20, the locking bolt 208 is inserted into the through hole on the surface of the connecting protrusion 103. After being locked and fixed by the nut 209, the connection between the head connection component 10 and the tail connection component 20 can be achieved, thereby achieving the connection between the pipes 100.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" 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, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention are understood according to specific circumstances.

[0048] The above specific embodiments are only one or several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A pipeline connection structure, characterized in that: It comprises a head connection component and a tail connection component, wherein the head connection component and the tail connection component are connected to two ends of the pipeline; The head connection assembly includes a connection pipe body and a connection protrusion, wherein the connection pipe body is fixed to the end of the pipe; the connection protrusion is arranged on the outer circumferential surface of the connection pipe body; The tail connection assembly includes a butt joint body, a fixing ring and a locking bolt, wherein the butt joint body is fixed to the other end of the pipeline, the fixing ring is fixed to the end of the butt joint body and is coaxially arranged with the butt joint body; the locking bolt is fixed to the surface of the fixing ring and corresponds to the connecting protrusion; When the pipes are connected end to end, the connecting pipe body of the head connecting assembly is inserted into the butt-jointed pipe body and fixed by locking bolts and nuts.

2. A pipeline connection structure according to claim 1, characterized in that: Both ends of the pipeline are provided with connecting flanges; the head connecting assembly and the tail connecting assembly respectively have a first flange and a second flange, and the head connecting assembly and the tail connecting assembly are respectively connected to the connecting flange of the pipeline through the first flange, the second flange and a bolt assembly.

3. A pipeline connection structure according to claim 2, characterized in that: A sealing ring groove is provided on one side of the second flange plate and the first flange plate which are in contact with the connecting flange, and a sealing ring is provided inside the connecting flange.

4. A pipeline connection structure according to claim 3, characterized in that: The sealing ring groove is trapezoidal.

5. A pipeline connection structure according to claim 1, characterized in that: The butt joint body transitions to the fixing ring through an expansion curved surface, so that the pipe diameter at the connection between the butt joint body and the pipeline is minimized; The hole diameter of the fixing ring is larger than the inner diameter of the pipe of the butt joint pipe body.

6. A pipeline connection structure according to claim 5, characterized in that: A sealing ring is fixed on the surface of the fixing ring. The sealing ring is coaxially arranged with the butt joint pipe body and extends in the direction where the butt joint pipe body has the smallest diameter.

7. A pipeline connection structure according to claim 6, characterized in that: A sealing rubber is arranged between the sealing ring and the extended curved surface, and the sealing rubber has a bent portion; When the head connection assembly is inserted into the tail connection assembly, the sealing rubber is located in the gap between the extended curved surface and the connection pipe body, so that the extended curved surface and the connection pipe body are sealed.

8. A pipeline connection structure according to claim 1, characterized in that: The middle part of the connecting protrusion has a through hole, the surface of the fixing ring has a groove, and the locking bolt is fixed in the groove; When the head connection assembly is docked with the tail connection assembly, the end of the connection protrusion extends into the groove, and the locking bolt passes through the through hole and cooperates with the nut thread.

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