Oil pipeline sealing joint

Abstract

The utility model discloses an oil pipeline sealing joint, which relates to the field of pipeline joints and comprises a first pipeline, the first pipeline and a second pipeline are in threaded connection through a thread bushing, threads are arranged on the outer ring of the first pipeline and the outer ring of the second pipeline, and the threads are in threaded connection with the thread bushing, so that convenience in connection between the pipelines is guaranteed. A sealing ring is fixedly connected to the end wall of the first pipeline, a sealing groove is reserved in the end of the second pipeline, the sealing ring and the sealing groove are connected in a matched mode, and sealing connection between the pipelines is guaranteed. The thread bushing in threaded connection with the first pipeline and the second pipeline is twisted to drive the first pipeline and the second pipeline to move, when the thread bushing is separated from the second pipeline, the first pipeline and the second pipeline can be separated, the thread bushing is reversely stirred to rotate to enable the thread bushing to move towards the direction where the second pipeline is located, and the second pipeline is separated from the first pipeline. Therefore, the threaded sleeve is in threaded connection with the thread of the outer ring of the pipeline II, and the pipeline I and the pipeline II are in sealed connection more conveniently and quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline joint field, concretely relates to a sealed joint of oil pipeline. BACKGROUND

[0002] Oil pipeline is the key facility of oil transportation, and it realizes the efficient, safe and economic transportation of oil and its products through complex pipeline network and supporting equipment, and plays an indispensable role in the global energy supply chain.

[0003] The existing oil pipeline still has some problems in the process of connection: the connection between the existing two oil pipelines is mostly through the connection mode of flange and screw, which makes the overall connection operation need to use additional appliances, and it is inconvenient and cumbersome to twist one by one screw.

[0004] Therefore, it is necessary to invent a sealed joint of oil pipeline to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a sealed joint of oil pipeline to solve the problem that the connection between the existing two oil pipelines is mostly through the connection mode of flange and screw, which makes the overall connection operation need to use additional appliances, and it is inconvenient and cumbersome to twist one by one screw.

[0006] In order to realize the above purpose, the utility model provides the following technical scheme: a sealed joint of oil pipeline, including pipeline one, the pipeline one and pipeline two are connected through threaded sleeve and realize threaded connection, the outer circle of pipeline one and pipeline two is provided with thread, and the thread and threaded sleeve are threaded connection, which ensures the convenient connection between the pipelines, the end wall of pipeline one is fixedly connected with sealing ring, the end of pipeline two is reserved with sealing groove, the sealing ring and sealing groove are matched and connected, which ensures the sealed connection between the pipelines, and further including:

[0007] Limiting component, the inside of pipeline one is reserved with annular groove, the inside of annular groove is slidably connected with annular block, the inside of annular block is movably installed with limiting rod, the limiting rod is matched with the limiting groove reserved in the inside of threaded sleeve, which avoids the falling of threaded sleeve and pipeline one;

[0008] Movable component, the lower end of limiting rod is fixedly connected with protruding block, the limiting rod is elastically connected with movable slot in the inside of annular block through spring and movable slot, and the movable setting of limiting rod facilitates the separation operation of threaded sleeve and pipeline one.

[0009] Preferably, the two ends of the pipe one and the pipe two are matched and connected by the threads on the outer circle, and the two threads are connected with the thread sleeve, which is convenient for the connection between the two pipes.

[0010] Preferably, the outer circle diameter of the ring block is smaller than the outer circle diameter of the pipe one, and the outer circle of the ring block does not contact with the inner circle of the thread sleeve, which ensures the smooth rotation of the thread sleeve.

[0011] Preferably, the two ends of the limiting groove are provided with inclined surfaces, and the outer wall of the inclined surface is attached to the outer wall of the spherical end of the limiting rod and is connected by sliding, which promotes the inclined surface to continuously move against the limiting rod under the condition of large force to twist the thread sleeve, and then the limiting rod is deeply inserted into the inner part of the movable groove, which is convenient for continuously twisting the thread sleeve to separate it from the pipe one.

[0012] Preferably, the outer wall of the sealing ring is attached to the inner wall of the sealing groove, which ensures the closed connection of the two pipes.

[0013] Preferably, the upper and lower ends of the spring are respectively fixedly connected with the lower end of the limiting rod and the bottom wall of the movable groove, which ensures the smooth movement of the limiting rod.

[0014] Preferably, the two protrusions are symmetrically distributed on the outer wall of the limiting rod with the center axis of the limiting rod as the axis of symmetry, and the lower end of the limiting rod is in the shape of "T", which ensures the stability of the movement of the limiting rod.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] 1. The thread sleeve for connecting the pipe one and the pipe two is twisted to move, and the pipe one and the pipe two are separated when the thread sleeve is separated from the pipe two, and then the thread sleeve is moved in the direction of the pipe two by reversing the rotation of the thread sleeve, and then the thread sleeve is connected with the thread of the outer circle of the pipe two, which makes the connection between the pipe one and the pipe two more convenient and fast.

[0017] 2. When the thread sleeve is rotated and displaced, the end wall of the limiting groove is in contact with the limiting rod, and if the same force is used to twist the thread sleeve, the spring is in contact with the side wall of the limiting groove, and the thread sleeve cannot be rotated, which avoids the disconnection between the thread sleeve and the pipe one.

[0018] 3. The inclined surface continuously moves against the limiting rod under the condition of large force to twist the thread sleeve, and then the limiting rod is deeply inserted into the inner part of the movable groove, which is convenient for continuously twisting the thread sleeve to separate it from the pipe one, so as to facilitate the replacement of the thread sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 It is an overall structure of the present application;

[0021] Figure 2 It is an overall structure of the present application;

[0022] Figure 3 It is an overall structure of the present application (partially cut state) internal structure perspective view;

[0023] Figure 4 It is an overall structure of the present application (partially cut state) internal structure perspective view;

[0024] Explanation of reference signs:

[0025] 1, pipe one; 2, pipe two; 3, thread; 4, threaded sleeve; 5, limiting assembly; 501, annular groove; 502, annular block; 503, limiting rod; 504, limiting groove; 6, sealing ring; 7, sealing groove; 8, movable assembly; 801, inclined surface; 802, movable groove; 803, spring; 804, protruding block. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0027] The present application provides a kind of oil pipeline sealing joint as Figures 1-4 As shown in the figure, a kind of oil pipeline sealing joint, including pipe one 1, pipe one 1 and pipe two 2 are connected by threaded sleeve 4 and realize threaded connection, the outer circle of pipe two 2 of pipe one 1 is provided with thread 3, thread 3 and threaded sleeve 4 present threaded connection, guarantee the connection between pipe is convenient, the end wall of pipe one 1 is fixedly connected with sealing ring 6, the end of pipe two 2 is reserved with sealing groove 7, sealing ring 6 and sealing groove 7 present matching connection, guarantee the sealing connection between pipe, still include:

[0028] Limiting assembly 5, the inside of pipe one 1 is reserved with annular groove 501, annular groove 501 is slidably connected with annular block 502 in the inside, annular block 502 is movably installed with limiting rod 503 in the inside, limiting rod 503 and the limiting groove 504 reserved in the inside of threaded sleeve 4 are matched, to avoid the falling of threaded sleeve 4 and pipe one 1;

[0029] The lower end of the limiting rod 503 is fixedly connected with a protrusion 804, the limiting rod 503 is elastically connected with an active slot 802 in the inside of the annular block 502 through a spring 803, and the active setting of the limiting rod 503 facilitates the separation operation of the threaded sleeve 4 and the pipeline 1.

[0030] The threads 3 provided on the outer circles of the opposite ends of the pipeline 1 and the pipeline 2 are matched in screw direction, and the two threads 3 are all threadedly connected with the threaded sleeve 4, so that the connection between the two pipe bodies is facilitated.

[0031] The outer circle diameter of the annular block 502 is smaller than the outer circle diameter of the pipeline 1, the outer circle of the annular block 502 does not contact with the inner circle of the threaded sleeve 4, and the normal rotation of the threaded sleeve 4 is smooth.

[0032] The two ends of the limiting slot 504 are provided with inclined surfaces 801, the outer wall of the inclined surface 801 is attached to the outer wall of the top spherical end of the limiting rod 503 and is slidably connected, the inclined surface 801 is continuously moved and abuts against the limiting rod 503 in the case of large force to twist the threaded sleeve 4, and then the limiting rod 503 is deeply inserted into the inside of the active slot 802, so that the threaded sleeve 4 is continuously twisted to move and separate from the pipeline 1.

[0033] The outer wall of the sealing ring 6 is attached to the inner wall of the sealing groove 7, so that the closed connection of the two pipelines is ensured.

[0034] The upper and lower ends of the spring 803 are fixedly connected with the lower end of the limiting rod 503 and the bottom wall of the active slot 802 respectively, so that the smooth movement of the limiting rod 503 is ensured.

[0035] The two protrusions 804 are symmetrically distributed on the outer wall of the limiting rod 503 with reference to the center axis of the limiting rod 503 as the symmetry axis, and the lower end of the limiting rod 503 is in the shape of "T", so that the stable movement of the limiting rod 503 is ensured.

[0036] Working principle: when using a sealing joint of an oil pipeline, first twist the threaded sleeve 4 to realize threaded connection with the threads 3 arranged on the opposite ends of the pipeline one 1 and the pipeline two 2. During the rotation of the threaded sleeve 4, the threaded sleeve 4 moves towards the pipeline one 1, and when the threaded sleeve 4 moves away from the threads 3 on the outer ring of the pipeline two 2, the pipeline one 1 and the pipeline two 2 can be separated. When the pipeline one 1 and the pipeline two 2 need to be connected and installed, twist the threaded sleeve 4 so that the end of the threaded sleeve 4 is completely in the outer ring of the pipeline one 1. The sealing ring 6 fixedly connected to the end wall of the pipeline one 1 is matched with the sealing groove 7 reserved in the end of the pipeline two 2. Then reverse the rotation of the threaded sleeve 4 to make the threaded sleeve 4 move towards the pipeline two 2, so that the threaded sleeve 4 realizes threaded connection with the threads 3 on the outer ring of the pipeline two 2, thereby realizing sealed connection of the pipeline one 1 and the pipeline two 2.

[0037] At the same time, the annular block 502 and the limiting rod 503 movably sleeved in the annular block 502 rotate synchronously with the threaded sleeve 4, and the limiting rod 503 and the limiting groove 504 reserved in the threaded sleeve 4 realize sliding connection. When the threaded sleeve 4 rotates and moves, the limiting rod 503 does not affect the movement of the threaded sleeve 4. When the end wall of the limiting groove 504 reserved in the threaded sleeve 4 abuts against the limiting rod 503, if the threaded sleeve 4 is twisted with normal force, the spring 803 abuts against the side wall of the limiting groove 504, so the threaded sleeve 4 cannot rotate, thereby avoiding the threaded sleeve 4 from being separated from the pipeline one 1. Then, a larger force is used to twist the threaded sleeve 4, the inclined surface 801 provided on the end wall of the limiting groove 504 abuts against the spherical end of the limiting rod 503, so that the inclined surface 801 continuously moves and abuts against the limiting rod 503 in the case of twisting the threaded sleeve 4 with a larger force, and then the limiting rod 503 is deeply inserted into the active groove 802, so that the threaded sleeve 4 can be continuously twisted to move away from the pipeline one 1, thereby facilitating the replacement of the threaded sleeve.

[0038] When a new threaded sleeve 4 is installed, the limiting rod 503 is pressed to be deeply inserted into the active groove 802, and the threaded sleeve 4 is twisted to realize threaded connection with the end of the pipeline one 1 close to the sealing ring 6. When the threaded sleeve 4 rotates and moves to cover the limiting rod 503, when the limiting groove 504 rotates to the upper side of the spherical end of the limiting rod 503, the limiting rod 503 is pushed out and matched with the limiting groove 504 under the elastic force of the spring 803, so that the threaded sleeve 4 is completely installed on the pipeline one 1.

[0039] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A sealed joint for an oil pipeline comprising a pipeline (1), characterised in that, The pipeline one (1) and pipeline two (2) are connected by threaded sleeve (4), the pipeline one (1) and pipeline two (2) are provided with thread (3), thread (3) and threaded sleeve (4) are threaded connection, the end wall of pipeline one (1) is fixedly connected with sealing ring (6), the end of pipeline two (2) is reserved with sealing groove (7), the sealing ring (6) is matched with sealing groove (7), further comprising: Limiting assembly (5), the inside of pipeline one (1) is reserved with annular groove (501), the inside of annular groove (501) is slidably connected with annular block (502), the inside of annular block (502) is movably installed with limiting rod (503), the limiting rod (503) is matched with the limiting groove (504) reserved in the inside of threaded sleeve (4); Movable assembly (8), the lower end of limiting rod (503) is fixedly connected with protruding block (804), the limiting rod (503) is elastically connected with movable slot (802) in the inside of annular block (502) through spring (803) and movable slot (802).

2. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The thread (3) of the opposite two ends of the pipeline one (1) and the pipeline two (2) is matched with the thread direction, and the two threads (3) are connected with the threaded sleeve (4).

3. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The outer diameter of the annular block (502) is smaller than the outer diameter of the pipeline one (1), and the outer circle of the annular block (502) is not in contact with the inner circle of the threaded sleeve (4).

4. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The both ends of the limiting groove (504) are provided with inclined surface (801), and the outer wall of the inclined surface (801) is matched with the outer wall of the top spherical end of the limiting rod (503) and is slidably connected.

5. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The outer wall of the sealing ring (6) is matched with the inner wall of the sealing groove (7).

6. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The upper and lower ends of the spring (803) are fixedly connected with the lower end of the limiting rod (503) and the bottom wall of the movable slot (802) respectively.

7. A sealed joint for a pipeline for the transport of oil according to claim 1, characterized in that, The protruding block (804) is provided with two, and the two protruding blocks (804) are symmetrically distributed on the outer wall of the limiting rod (503) with the center axis of the limiting rod (503) as the axis of symmetry, and the lower end of the limiting rod (503) is in the shape of "T".

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