Pipeline quick connection assembly

Abstract

The utility model relates to a pipeline quick connection assembly, and belongs to the field of pipeline connection. The pipeline quick connecting assembly is used for connecting two adjacent pipe bodies and comprises a connecting pipe, a sealing ring and a connecting piece. The connecting pipe comprises a body, and the body is provided with two connecting ends which are oppositely arranged; the sealing ring is arranged at the connecting end and clamped between the connecting pipe and the pipe body in the axial direction of the connecting pipe. The connecting piece is arranged on the periphery of the connecting pipe in a sleeving mode and used for connecting the connecting pipe and the pipe body. Wherein the sealing ring is provided with a first side abutting against the pipe body and a second side abutting against the connecting end in the axial direction of the connecting pipe, the second side is partially sunken to form an annular groove, the connecting pipe further comprises a first convex part, and the first convex part protrudes out of the connecting end and is matched with the annular groove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline connection field, especially relate to a pipeline quick -joint assembly. BACKGROUND

[0002] In the process of chemical transfer, pipeline transportation is favored because of its stability and safety, and a pipeline quick -joint assembly is generally used in the process of connecting pipe bodies, and a sealing ring is generally arranged in the pipeline quick -joint assembly, when connecting two horizontally arranged pipe bodies, the sealing ring is prone to falling or deforming in the direction of gravity because the gravity is perpendicular to the axis of the sealing ring, so that the sealing ring cannot seal the connection between the pipe body and the pipeline quick -joint assembly. SUMMARY

[0003] In view of the above problems, the pipeline quick -joint assembly is provided to solve the above technical problems.

[0004] The pipeline quick -joint assembly is used for connecting two adjacent pipe bodies, and the pipeline quick -joint assembly comprises a connecting pipe, a sealing ring and a connecting piece. The connecting pipe comprises a body, the body has two connecting ends arranged oppositely, the sealing ring is arranged on the connecting end, along the axial direction of the connecting pipe, the sealing ring is clamped between the connecting pipe and the pipe body, the connecting piece is sleeved on the outer periphery of the connecting pipe and is used for connecting the connecting pipe and the pipe body, wherein the sealing ring has a first side abutting against the pipe body and a second side abutting against the connecting end in the axial direction of the connecting pipe, the second side is partially recessed to form an annular groove, and the connecting pipe further comprises a first protruding part, the first protruding part protrudes from the connecting end and is matched with the annular groove.

[0005] In the above technical scheme, the first protruding part protrudes from the connecting end and is matched with the annular groove, so that when two horizontally arranged pipe bodies are connected, the first protruding part can be inserted into the annular groove to limit the deformation of the sealing ring, so that the sealing ring can be stably clamped between the connecting end and the pipe body during the butt joint of the connecting end of the body and the pipe body, and the sealing ring can more stably seal the gap between the pipe body and the body.

[0006] In some embodiments, the first side is a plane, and the orthographic projection of the first protruding part is located in the orthographic projection of the first side in a plane perpendicular to the axial direction of the connecting pipe.

[0007] In the above technical scheme, the orthographic projection of the first protruding part is located in the orthographic projection of the first side in a plane perpendicular to the axial direction of the connecting pipe, so that the first protruding part and the pipe body can cooperate to compress the region of the sealing ring provided with the annular groove along the axial direction of the connecting pipe, thereby increasing the sealing performance of the sealing ring and improving the reliability of the pipeline quick -joint assembly.

[0008] In some embodiments, the first side is planar.

[0009] In the above technical solution, the first side is planar, on the one hand, the first side is convenient to abut against the pipe body, on the other hand, compared with the case that the annular groove is arranged on the first side and the first protrusion is arranged on the pipe body, the difficulty of machining the pipe body is reduced, and meanwhile, since the connecting pipe has a smaller volume than the pipe body, the machining of the entire pipeline is facilitated.

[0010] In some embodiments, the minimum inner diameter of the sealing ring is greater than the inner diameter of the connecting pipe, and the minimum inner diameter of the sealing ring is greater than the inner diameter of the pipe body.

[0011] In the above technical solution, the minimum inner diameter of the sealing ring is greater than the inner diameter of the connecting pipe, and the minimum inner diameter of the sealing ring is greater than the inner diameter of the pipe body, so that when the body is fitted with the pipe body to clamp the sealing ring, space is given for the sealing ring to expand in the radial direction thereof, and the risk that the sealing ring protrudes along the inner wall of the connecting pipe and the inner wall of the pipe body in the radial direction of the connecting pipe when the body is fitted with the pipe body to clamp the sealing ring, thereby hindering the movement of the chemical product, is reduced.

[0012] In some embodiments, the inner surface of the sealing ring is recessed to form an avoidance groove.

[0013] In the above technical solution, by means of the avoidance groove, space is given for the sealing ring to expand, thereby further reducing the risk that the sealing ring protrudes along the inner wall of the connecting pipe and the inner wall of the pipe body in the radial direction of the connecting pipe when the body is fitted with the pipe body to clamp the sealing ring, thereby hindering the movement of the chemical product.

[0014] In some embodiments, the cross section of the avoidance groove through the axis of the sealing ring is in the shape of a circular arc.

[0015] In the above technical solution, the cross section of the avoidance groove through the axis of the sealing ring is in the shape of a circular arc, so that when the pressure inside the pipe body is relatively large, the pressure borne by the avoidance groove generates pressure in the axial direction of the connecting pipe and pointing towards the pipe body, thereby causing the part of the sealing ring between the avoidance groove and the pipe body in the axial direction of the connecting pipe to be more tightly attached to the end face of the pipe body, and meanwhile, the pressure borne by the avoidance groove also generates pressure in the axial direction of the connecting pipe and pointing towards the body, thereby causing the part of the sealing ring between the avoidance groove and the body in the axial direction of the connecting pipe to be more tightly attached to the connecting end. Thus, the sealing performance of the sealing ring is further increased, and the reliability of the pipeline quick connection assembly is further improved.

[0016] In some embodiments, the connecting piece comprises a connecting ring and a third protrusion, and has a first end and a second end arranged oppositely along the axial direction of the connecting pipe, the first end is detachably connected with the pipe body, and the third protrusion protrudes from the inner circumferential side of the connecting ring and is located at the second end to form a first stepped surface on the inner circumferential side of the connecting piece; the connecting pipe further comprises a second protrusion, the second protrusion protrudes from the outer circumferential side of the body portion to form a second stepped surface on the outer circumferential side of the connecting pipe, the second stepped surface is located on the side of the second protrusion away from the pipe body along the axial direction of the connecting pipe, and the first stepped surface and the second stepped surface abut to fix the connecting pipe to the pipe body.

[0017] In the above technical solution, the second stepped surface is formed by the second protrusion to limit the third protrusion, so that the connecting piece can fix the connecting pipe relative to the pipe body, and the structure is simple and easy to implement.

[0018] In some embodiments, the connecting ring is threadedly connected with the outer circumferential side of the pipe body; and along the axial direction of the connecting pipe, the second protrusion protrudes from the connecting end, and along the radial direction of the connecting pipe, the second protrusion is located between the sealing ring and the connecting ring.

[0019] In the above technical solution, the connecting ring is threadedly connected with the outer circumferential side of the pipe body, the thread connection has self-locking property, the reliability of the connection between the connecting piece and the pipe body is improved, and by arranging the second protrusion between the sealing ring and the connecting ring along the radial direction of the connecting pipe, the damage of the sealing ring caused by the abutment between the connecting ring and the outer circumferential side of the sealing ring during rotation of the connecting ring is reduced, and the sealing performance of the sealing ring is improved.

[0020] In some embodiments, along the axial direction of the connecting pipe, the end of the second protrusion away from the body abuts against the end surface of the pipe body.

[0021] In the above technical solution, by abutting the first end of the second protrusion away from the body against the end surface of the pipe body to limit the distance between the body and the pipe body along the axial direction of the connecting pipe, the risk of crushing the sealing ring by the body and the pipe body is reduced.

[0022] In some embodiments, along the radial direction of the connecting pipe, the outer circumferential side of the sealing ring abuts against the inner circumferential side of the second protrusion.

[0023] In the above technical solution, along the radial direction of the connecting pipe, the outer circumferential side of the sealing ring abuts against the inner circumferential side of the second protrusion, so that a seal is formed between the outer circumferential side of the sealing ring and the inner circumferential side of the second protrusion, the risk of leakage of the chemical product from the gap between the outer circumferential side of the sealing ring and the inner circumferential side of the second protrusion is reduced, and the sealing performance of the sealing ring is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the premise of not paying creative effort.

[0025] Figure 1 The structural schematic view of the pipeline quick connection assembly provided by the embodiment of the present application is shown in the figure.

[0026] Figure 2 The sectional view of the pipeline quick connection assembly provided by the embodiment of the present application is shown in the figure.

[0027] Figure 3 The structural schematic view of the connecting pipe provided by the embodiment of the present application is shown in the figure. Figure 2 The local enlarged view of A in the figure.

[0028] Figure 4 The structural schematic view of the connecting pipe provided by the embodiment of the present application is shown in the figure.

[0029] Figure 5 The structural schematic view of the sealing ring provided by the embodiment of the present application is shown in the figure.

[0030] Figure 6 The structural schematic view of the connecting piece provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in detail below with reference to the drawings.

[0032] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection" should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the process of transporting chemicals, pipeline transportation is favored because of its stability and safety. In the process of connecting the pipe body and the pipe body, a pipeline quick connecting assembly is generally used. The pipeline quick connecting assembly is generally provided with a sealing ring. When connecting two pipe bodies arranged horizontally, due to the gravity perpendicular to the axis of the sealing ring, the sealing ring is prone to falling off or deforming in the direction of gravity during installation, so that the sealing ring cannot seal the connection between the pipe body and the pipeline quick connecting assembly.

[0036] In order to solve the above technical problems, with reference to Figures 1-6 The embodiment of the present application provides a pipeline quick connecting assembly 100 for connecting two adjacent pipe bodies 200. The pipeline quick connecting assembly 100 comprises a connecting pipe 10, a sealing ring 20 and a connecting piece 30. The connecting pipe 10 comprises a body 11, the body 11 has two oppositely arranged connecting ends 111; the sealing ring 20 is arranged on the connecting end 111, and along the axial direction of the connecting pipe 10, the sealing ring 20 is clamped between the connecting pipe 10 and the pipe body 200; the connecting piece 30 is sleeved on the outer periphery of the connecting pipe 10 and is used for connecting the connecting pipe 10 and the pipe body 200; wherein the sealing ring 20 has a first side 20A abutting against the pipe body 200 and a second side 20B abutting against the connecting end 111 in the axial direction of the connecting pipe 10, the second side 20B is partially recessed to form an annular groove 21, and the connecting pipe 10 further comprises a first protruding part 12, the first protruding part 12 protrudes from the connecting end 111 and is matched with the annular groove 21.

[0037] The sealing ring 20 can be made of rubber or plastic.

[0038] It can be understood that the two connecting ends 111 are respectively used for abutting the two sealing rings 20 on the end faces of the two adjacent pipe bodies 200.

[0039] Exemplarily, the body 11 and the first protruding part 12 can be integrally formed.

[0040] In the technical solution, the first convex part 12 protrudes from the connecting end 111 and is matched with the annular groove 21, so that when the two pipe bodies 200 arranged horizontally are connected, the first convex part 12 can be inserted into the annular groove 21 to limit the deformation of the sealing ring 20, so that the sealing ring 20 can be stably clamped between the connecting end 111 of the body 11 and the pipe body 200 during the abutting process of the connecting end 111 of the body 11 and the pipe body 200, thereby making the sealing ring 20 more stably seal the gap between the pipe body 200 and the body 11.

[0041] According to some embodiments of the present application, the first side 20A is a plane, and in a plane perpendicular to the axial direction of the connecting pipe 10, the orthographic projection of the first convex part 12 is located in the orthographic projection of the first side 20A.

[0042] In the technical solution, in a plane perpendicular to the axial direction of the connecting pipe 10, the orthographic projection of the first convex part 12 is located in the orthographic projection of the first side 20A, so that the first convex part 12 and the pipe body 200 can be matched to compress the region where the sealing ring 20 is provided with the annular groove 21 along the axial direction of the connecting pipe 10, thereby increasing the sealing performance of the sealing ring 20 and improving the reliability of the pipeline quick connection assembly 100.

[0043] According to some embodiments of the present application, the first side 20A is a plane.

[0044] In the technical solution, the first side 20A is a plane, which on the one hand facilitates the abutment of the first side 20A and the pipe body 200, and on the other hand, compared with the case where the annular groove 21 is arranged on the first side 20A and the first convex part 12 is arranged on the pipe body 200, reduces the difficulty of machining the pipe body 200, and at the same time, since the connecting pipe 10 has a smaller volume than the pipe body 200, the machining of the entire pipeline is facilitated.

[0045] According to some embodiments of the present application, the minimum inner diameter H 1min of the sealing ring 20 is greater than the inner diameter H2 of the connecting pipe 10, and the minimum inner diameter H1min of the sealing ring 20 is greater than the inner diameter H3 of the pipe body 200.

[0046] The minimum inner diameter H 1min of the sealing ring 20 refers to the inner diameter at the smallest inner diameter of the sealing ring 20.

[0047] In the technical solution, the minimum inner diameter H 1min of the sealing ring 20 is greater than the inner diameter H2 of the connecting pipe 10, and the minimum inner diameter H 1minThe inner diameter H3 of the pipe body 200 is greater than the inner diameter H2 of the connecting pipe 10, so that when the body 11 is fitted with the pipe body 200 to clamp the sealing ring 20, space is provided for the sealing ring 20 to expand radially, thereby reducing the risk that the sealing ring 20 will protrude radially along the connecting pipe 10 and the inner wall of the pipe body 200 to hinder the movement of the chemical product when the body 11 is fitted with the pipe body 200 to clamp the sealing ring 20.

[0048] According to some embodiments of the present application, the inner surface of the sealing ring 20 is recessed to form the recessed groove 22.

[0049] In the technical solution, the recessed groove 22 is provided to give the sealing ring 20 space to expand, thereby further reducing the risk that the sealing ring 20 will protrude radially along the connecting pipe 10 and the inner wall of the pipe body 200 to hinder the movement of the chemical product when the body 11 is fitted with the pipe body 200 to clamp the sealing ring 20.

[0050] According to some embodiments of the present application, the cross section of the recessed groove 22 through the axis of the sealing ring 20 is in the shape of a circular arc.

[0051] In the technical solution, the cross section of the recessed groove 22 through the axis of the sealing ring 20 is in the shape of a circular arc, so that when the pressure inside the pipe body 200 is high, the pressure that the recessed groove 22 bears will generate pressure along the axis of the connecting pipe 10 that points toward the pipe body 200, thereby causing the part of the sealing ring 20 along the axis of the connecting pipe 10 that is between the recessed groove 22 and the pipe body 200 to be more tightly attached to the end face of the pipe body 200, and the pressure that the recessed groove 22 bears will also generate pressure along the axis of the connecting pipe 10 that points toward the body 11, thereby causing the part of the sealing ring 20 along the axis of the connecting pipe 10 that is between the recessed groove 22 and the body 11 to be more tightly attached to the connecting end 111. This further increases the sealing performance of the sealing ring 20 and further improves the reliability of the pipe quick connection assembly 100.

[0052] According to some embodiments of the present application, the connecting piece 30 includes a connecting ring 31 and a third protruding portion 32, and has first and second ends arranged opposite each other along the axis of the connecting pipe 10, the first end is detachably connected to the pipe body 200, the third protruding portion 32 protrudes from the inner circumferential side of the connecting ring 31 and is located at the second end to form a first step face 321 on the inner circumferential side of the connecting piece 30; the connecting pipe 10 further includes a second protruding portion 13, the second protruding portion 13 protrudes from the outer circumferential side of the body 11 to form a second step face 131 on the outer circumferential side of the connecting pipe 10, the second step face 131 is located on the side of the second protruding portion 13 that is away from the pipe body 200 along the axis of the connecting pipe 10, and the first step face 321 abuts against the second step face 131 to fix the connecting pipe 10 to the pipe body 200.

[0053] In the technical solution, the second step 131 is formed by the second protrusion 13 to limit the third protrusion 32, so that the connecting piece 30 can be fixedly connected with the pipe 10 relative to the pipe body 200, and the structure is simple and convenient to implement.

[0054] According to some embodiments of the present application, the connecting ring 31 is threadedly connected with the outer periphery of the pipe body 200; and along the axial direction of the connecting pipe 10, the second protrusion 13 protrudes from the connecting end 111, and along the radial direction of the connecting pipe 10, the second protrusion 13 is located between the sealing ring 20 and the connecting ring 31.

[0055] In the technical solution, the connecting ring 31 is threadedly connected with the outer periphery of the pipe body 200, the thread connection has self-locking property, the reliability of the connection between the connecting piece 30 and the pipe body 200 is improved, and by arranging the second protrusion 13 between the sealing ring 20 and the connecting ring 31 along the radial direction of the connecting pipe 10, the damage of the sealing ring 20 caused by the abutment between the connecting ring 31 and the outer periphery of the sealing ring 20 during rotation is reduced, and the sealing performance of the sealing ring 20 is improved.

[0056] According to some embodiments of the present application, along the axial direction of the connecting pipe 10, the second protrusion 13 is in abutment with the pipe body 200 at an end away from the body 11.

[0057] In the technical solution, by abutting the first end of the second protrusion 13 away from the body 11 with the end face of the pipe body 200 to limit the distance between the body 11 and the pipe body 200 along the axial direction of the connecting pipe 10, the risk of crushing the sealing ring 20 by the body 11 and the pipe body 200 is reduced.

[0058] According to some embodiments of the present application, along the radial direction of the connecting pipe 10, the outer periphery of the sealing ring 20 is in abutment with the inner periphery of the second protrusion 13.

[0059] In the technical solution, along the radial direction of the connecting pipe 10, the outer periphery of the sealing ring 20 is in abutment with the inner periphery of the second protrusion 13, so that a seal is formed between the outer periphery of the sealing ring 20 and the inner periphery of the second protrusion 13, the risk of leakage of the chemical product from the gap between the outer periphery of the sealing ring 20 and the inner periphery of the second protrusion 13 is reduced, and the sealing performance of the sealing ring 20 is further improved.

[0060] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0061] The above embodiments are only used to illustrate the technical solutions of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe quick coupling assembly for connecting two adjacent pipe bodies, characterized by, The utility model relates to a pipe connecting device, comprising: a connecting pipe comprising a body having two opposite connecting ends; a sealing ring arranged on the connecting ends along the axial direction of the connecting pipe, the sealing ring being clamped between the connecting pipe and the pipe body; a connecting member sleeved on the outer periphery of the connecting pipe and used for connecting the connecting pipe and the pipe body; wherein the sealing ring has a first side abutting against the pipe body and a second side abutting against the connecting end along the axial direction of the connecting pipe, the second side is partially recessed to form an annular groove, and the connecting pipe further comprises a first protruding part protruding from the connecting end and adapted to the annular groove.

2. A quick-connect plumbing assembly according to claim 1, wherein, The first side is a plane, and the orthogonal projection of the first protruding part on a plane perpendicular to the axial direction of the connecting pipe is located within the orthogonal projection of the first side.

3. A quick-connect pipe assembly according to claim 2, wherein The first side is a plane.

4. A pipe quick coupling assembly as claimed in any one of claims 1 to 3, wherein, The minimum inner diameter of the sealing ring is greater than the inner diameter of the connecting pipe, and the minimum inner diameter of the sealing ring is greater than the inner diameter of the pipe body.

5. A pipe quick coupling assembly according to claim 4, wherein, The inner surface of the sealing ring is recessed to form a recessed groove.

6. A pipe quick coupling assembly according to claim 5, wherein, The cross section of the recessed groove along the axial line of the sealing ring is in the shape of a circular arc.

7. A quick-connect plumbing assembly according to claim 1, wherein, The connecting member comprises a connecting ring and a third protruding part, has first and second ends arranged opposite to each other along the axial direction of the connecting pipe, the first end is detachably connected to the pipe body, and the third protruding part protrudes from the inner periphery side of the connecting ring and is located at the second end to form a first stepped surface on the inner periphery of the connecting member. The connecting pipe further comprises a second protruding part protruding from the outer periphery of the body part to form a second stepped surface on the outer periphery of the connecting pipe, the second stepped surface is located on the side of the second protruding part away from the pipe body along the axial direction of the connecting pipe, and the first stepped surface abuts against the second stepped surface to fix the connecting pipe to the pipe body.

8. A pipe quick coupling assembly according to claim 7, wherein, The connecting ring is threadedly connected to the outer periphery of the pipe body. Wherein, along the axial direction of the connecting pipe, the second protruding part protrudes from the connecting end, and along the radial direction of the connecting pipe, the second protruding part is located between the sealing ring and the connecting ring.

9. A pipe quick coupling assembly according to claim 8, wherein, Along the axial direction of the connecting pipe, the second protruding part abuts against the pipe body away from one end of the body.

10. A pipe quick coupling assembly as defined in claim 8, wherein, Along the radial direction of the connecting pipe, the outer periphery side of the sealing ring abuts against the inner periphery side of the second protruding part.

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