Pressure hard connection joint

Abstract

The utility model relates to the technical field of petroleum transportation, and discloses a pressure hard connector which comprises a connecting pipe, internal threads are arranged on the inner side of the connecting pipe, an inner wall is fixedly installed in the connecting pipe, a first sealing sleeve is fixedly installed on the outer side of the inner wall, and a positioning block is fixedly installed on the outer side of the connecting pipe. A positioning ring is arranged at the bottom of the connecting pipe, a positioning groove is formed in the outer side of the positioning ring, and a positioning bolt is fixedly installed on the outer side of the positioning block. According to the pressure hard connection joint, through the design of the communicating pipe, the vertical pipe and the through hole, a pipeline can be externally connected to the flange, three-phase connection of the whole connection joint can be achieved, and therefore detection of internal pressure and flow is facilitated, the whole joint does not need to be disassembled, and practicability is improved; the connecting pipe and the positioning ring can be directly used, meanwhile, the single connecting pipe and the single positioning ring can be used for fixed installation, adjustment can be conducted according to actual conditions, and the overall diversity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum transportation, in particular to a pressure hard connection joint. Background Art

[0002] With the continuous improvement of industrialization, pipelines are often used to transport precious resources such as oil. Pipeline transportation has its unique advantages. The first is its smooth and uninterrupted transportation. In the modern large-scale production process, oil fields are constantly producing, and pipelines can be transported continuously. Usually, when connecting pipelines, hard-connected joints are used to connect two or more connecting pipelines to ensure normal transportation between two or more pipelines and avoid leakage during the transportation process.

[0003] Among them, the Chinese utility model patent with announcement number CN205118537U specifically discloses a quick-connect joint for connecting a pressure reducing valve with a hard pipe, which specifically includes a through-hole plug, a locking nut and a straight-insert automatic locking quick joint. The through-hole plug is sealed and connected to the pressure reducing valve through the locking nut, one end of the hard pipe is plugged into the straight-insert automatic locking quick joint, and the hard pipe can rotate 360 ​​degrees after connection. The quick-connect joint for connecting a pressure reducing valve with a hard pipe of such a structure can improve the working efficiency of connecting the hard pipe with the pressure reducing valve, but it does not improve the connection and mounting seat. Through the integrated design, it is not convenient to replace a single component, and the quick-connect joint for connecting a pressure reducing valve with a hard pipe does not design a three-way connection between the joints, which is not convenient for subsequent pressure and flow detection, and has poor practicality. Summary of the invention

[0004] In view of the problems existing in the existing hard pipe connection quick connection joint solutions in terms of ease of use, the purpose of the utility model is to provide a pressure hard connection joint, which can effectively solve the problems of the one-piece design in the prior art, the inconvenience of replacing a single component and the three-way connection between the joints, and the inconvenience of subsequent pressure and flow detection.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a pressure hard-connected joint, including a connecting pipe, an internal thread is provided on the inner side of the connecting pipe, an inner wall is fixedly installed inside the connecting pipe, a first sealing sleeve is fixedly installed on the outer side of the inner wall, a positioning block is fixedly installed on the outer side of the connecting pipe, a positioning ring is provided at the bottom of the connecting pipe, a positioning groove is provided on the outer side of the positioning ring, a positioning bolt is fixedly installed on the outer side of the positioning block, a nut is threadedly connected on the outer side of the positioning bolt, a second sealing sleeve is fixedly installed on the outer side of the positioning ring, a connecting pipe is provided on the outer side of the positioning ring, a vertical pipe is fixedly installed on the outer side of the connecting pipe, a through hole is provided on the inner side of the vertical pipe, a flange is fixedly installed on the top of the vertical pipe, and a plurality of positioning holes are provided on the outer side of the positioning ring.

[0006] Preferably, the positioning block and the positioning ring are of the same size, and the positioning block and the positioning ring are provided in the same number, and the plurality of positioning blocks and positioning rings are distributed in a ring shape about the center line of the connecting pipe.

[0007] Through the above technical solution, through the design of the positioning block and the positioning ring, when the connecting pipe and the positioning ring are fixedly installed, the positioning block can be inserted into the positioning groove first, which can play a role in rapid positioning and avoid misalignment during the installation process.

[0008] Preferably, the first sealing sleeve is a rubber sealing sleeve, and the first sealing sleeve is located at the bottom end of the internal thread.

[0009] Through the above technical solution and the design of the first sealing sleeve, when making a connection, the connector can first be screwed into the interior of the connecting pipe through the internal thread, and then rotated to the inner wall so that the bottom of the connector can be matched with the first sealing sleeve, thereby playing a sealing role and avoiding leakage.

[0010] Preferably, the positioning bolts correspond to the positioning blocks one by one, and the positioning bolts penetrate the positioning blocks, the positioning rings and the connecting pipes and extend to the outside thereof.

[0011] Through the above technical solution, through the design of the positioning bolt and the positioning block, when the positioning block and the positioning ring are aligned, the two can be locked by the positioning bolt to prevent them from falling off easily, and at the same time, they can also fix the connecting pipe, which can facilitate improving the diversity of the positioning bolt.

[0012] Preferably, the connecting pipe, the vertical pipe and the through hole are in an inverted "T" shape, and the connecting pipe, the vertical pipe and the connecting pipe are connected.

[0013] Through the above technical solution, through the design of connecting pipes, vertical pipes and through holes, external pipelines can be connected at the flange, and three-phase connection of the integral connecting joint can be achieved, which facilitates the detection of internal pressure without disassembling the integral joint, thereby improving practicality.

[0014] Preferably, two identical connecting pipes and positioning rings are provided, and the two connecting pipes and positioning rings are symmetrically distributed about the center line of the connecting pipe.

[0015] Through the above technical solution, through the design of two connecting pipes and a positioning ring, when there is no need to install a connecting pipe, the connecting pipe and the positioning ring can be directly used, and a single connecting pipe and positioning ring can also be used for fixed installation.

[0016] Preferably, the second sealing sleeve is a rubber sealing sleeve, and the second sealing sleeve is located at the connection between the connecting pipe and the positioning ring.

[0017] Through the above technical solution, through the design of the second sealing sleeve, when a single second sealing sleeve connecting pipe and a positioning ring are installed, it can be fitted with the connection and play a sealing role. When installing the connecting pipe, it can play a sealing role for the connecting pipe and the positioning ring.

[0018] Compared with the prior art, the pressure hard connection joint solution provided by the utility model has the following beneficial effects:

[0019] 1. This pressure hard connection joint, through the design of the positioning block and the positioning ring, when the connecting pipe and the positioning ring are fixedly installed, the positioning block can be inserted into the positioning groove first, which can play a role of rapid limiting, avoiding misalignment during the installation process. Through the design of the positioning bolt and the positioning block, after the positioning block and the positioning ring are aligned, the positioning bolt can be used to lock the two to avoid them from falling off easily, and at the same time, it can fix the connecting pipe, which can facilitate the diversity of the positioning bolt and the replacement of a single component. At the same time, it can also prevent leakage when combined with the first sealing sleeve and the second sealing sleeve;

[0020] 2. This pressure hard connection joint, through the design of connecting pipes, vertical pipes and through holes, can be connected to external pipes at the flange, and can realize three-phase connection of the overall connection joint, so as to facilitate the detection of internal pressure and flow, without the need to disassemble the overall joint, thereby improving practicality. When there is no need to install a connecting pipe, the connecting pipe and the positioning ring can be directly used, and a single connecting pipe and positioning ring can also be used for fixed installation. It can be adjusted according to actual conditions to improve overall diversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the pressure hard connection joint in the utility model from the first perspective;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the pressure hard connection joint in the utility model from a second viewing angle;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure hard connection joint in the utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the positioning ring and positioning groove of the pressure hard connection joint in the utility model;

[0025] Figure 5 It is a schematic diagram of the split structure of the pressure hard connection joint in the utility model.

[0026] Among them: 1. connecting pipe; 2. internal thread; 3. inner wall; 4. first sealing sleeve; 5. positioning block; 6. positioning ring; 7. positioning groove; 8. positioning bolt; 9. nut; 10. second sealing sleeve; 11. connecting pipe; 12. vertical pipe; 13. through hole; 14. flange; 15. positioning hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0028] Embodiment 1:

[0029] Combination Figure 1-5 As shown, it shows the example structure of the pressure hard connection joint given in this example.

[0030] Based on the diagram, the pressure hard connection joint specifically includes a connecting pipe 1, an internal thread 2 is provided on the inner side of the connecting pipe 1, an inner wall 3 is fixedly installed inside the connecting pipe 1, a first sealing sleeve 4 is fixedly installed on the outer side of the inner wall 3, a positioning block 5 is fixedly installed on the outer side of the connecting pipe 1, a positioning ring 6 is provided at the bottom of the connecting pipe 1, a positioning groove 7 is provided on the outer side of the positioning ring 6, a positioning bolt 8 is fixedly installed on the outer side of the positioning block 5, a nut 9 is threadedly connected on the outer side of the positioning bolt 8, a second sealing sleeve 10 is fixedly installed on the outer side of the positioning ring 6, a connecting pipe 11 is provided on the outer side of the positioning ring 6, a vertical pipe 12 is fixedly installed on the outer side of the connecting pipe 11, a through hole 13 is provided on the inner side of the vertical pipe 12, a flange 14 is fixedly installed on the top of the vertical pipe 12, and a plurality of positioning holes 15 are provided on the outer side of the positioning ring 6.

[0031] As a further feature, the positioning block 5 and the positioning ring 6 are of the same size, and the positioning block 5 and the positioning ring 6 are provided in equal numbers, and the multiple positioning blocks 5 and the positioning ring 6 are distributed in a ring shape about the center line of the connecting pipe 1. In this way, through the design of the positioning block 5 and the positioning ring 6, when the connecting pipe 1 and the positioning ring 6 are fixedly installed, the positioning block 5 can be inserted into the positioning groove 7 first, which can play a role of rapid limiting and avoid misalignment during the installation process.

[0032] As a further feature, the first sealing sleeve 4 is a rubber sealing sleeve, and the first sealing sleeve 4 is located at the bottom end of the internal thread 2. With such a configuration, through the design of the first sealing sleeve 4, when making a connection, the connector can first be rotated into the interior of the connecting pipe 1 through the internal thread 2, and then when it is rotated to the inner wall 3, the bottom of the connector can be adapted to the first sealing sleeve 4, which can play a sealing role and avoid leakage.

[0033] As a further feature, the positioning bolt 8 corresponds to the positioning block 5 one by one, and the positioning bolt 8 penetrates the positioning block 5, the positioning ring 6 and the connecting tube 11 and extends to the outside thereof. With such a configuration, through the design of the positioning bolt 8 and the positioning block 5, when the positioning block 5 and the positioning ring 6 are aligned, the positioning bolt 8 can be used to lock the two to prevent them from falling off easily, and can also fix the connecting tube 11 while fixing them, which can facilitate improving the diversity of the positioning bolt 8.

[0034] Embodiment 2:

[0035] This example further provides an optimization solution based on the first embodiment.

[0036] Specific combination Figure 2-5 As shown, the further optimization scheme given in this example is as follows.

[0037] Specifically, in this example, the connecting pipe 11, the vertical pipe 12 and the through hole 13 are in an inverted "T" shape, and the connecting pipe 11, the vertical pipe 12 and the connecting pipe 1 are connected. In this way, through the design of the connecting pipe 11, the vertical pipe 12 and the through hole 13, an external pipeline can be connected at the flange 14, and the three-phase connection of the integral connection joint can be realized, so that it is convenient to detect the internal pressure without disassembling the integral joint, which can improve practicality.

[0038] Specifically, in this example, two identical connecting pipes 1 and positioning rings 6 are provided, and the two connecting pipes 1 and positioning rings 6 are symmetrically distributed about the center line of the connecting pipe 11. In this way, through the design of the two connecting pipes 1 and positioning rings 6, when the connecting pipe 11 does not need to be installed, the connecting pipe 1 and positioning ring 6 can be directly used, and a single connecting pipe 1 and positioning ring 6 can also be used for fixed installation.

[0039] Specifically, in this example, the second sealing sleeve 10 is a rubber sealing sleeve, and the second sealing sleeve 10 is located at the connection between the connecting pipe 11 and the positioning ring 6. In this way, through the design of the second sealing sleeve 10, when a single second sealing sleeve 10 is installed to connect the pipe 1 and the positioning ring 6, it can be fitted at the connection to play a sealing role, and when the connecting pipe 11 is installed, it can play a sealing role for the connecting pipe 11 and the positioning ring 6.

[0040] Regarding the pressure hard connection joint solution given in the above example, the following example illustrates its application and operation process.

[0041] Combination Figures 1 to 5 As shown, when the pressure hard connection joint is in use, firstly through the design of the positioning block 5 and the positioning ring 6, when the connecting pipe 1 and the positioning ring 6 are fixedly installed, the positioning block 5 can be first inserted into the positioning groove 7, which can play a role of rapid limiting and avoid misalignment during the installation process.

[0042] Through the design of the first sealing sleeve 4, when making a connection, the connecting piece can first be rotated into the interior of the connecting pipe 1 through the internal thread 2, and then when it is rotated to the inner wall 3, the bottom of the connecting piece can be adapted to the first sealing sleeve 4, which can play a sealing role and avoid leakage;

[0043] Through the design of the positioning bolt 8 and the positioning block 5, when the positioning block 5 and the positioning ring 6 are aligned, the positioning bolt 8 can be used to lock the two to prevent them from falling off easily, and at the same time, the connecting pipe 11 can be fixed, which can facilitate the improvement of the diversity of the positioning bolt 8;

[0044] Through the design of the connecting pipe 11, the vertical pipe 12 and the through hole 13, the pipeline can be connected externally at the flange 14, and the three-way connection of the integral connection joint can be realized, so that the internal pressure detection is convenient without disassembling the integral joint, which can improve the practicality;

[0045] Through the design of two connecting pipes 1 and positioning ring 6, when the connecting pipe 11 does not need to be installed, the connecting pipe 1 and the positioning ring 6 can be directly connected for use, and a single connecting pipe 1 and positioning ring 6 can also be used for fixed installation;

[0046] Through the design of the second sealing sleeve 10, when a single second sealing sleeve 10 is installed to connect the pipe 1 and the positioning ring 6, it can fit together at the connection point and play a sealing role. When the connecting pipe 11 is installed, it can seal the connecting pipe 11 and the positioning ring 6.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure hard connection joint, comprising a connection pipe (1), characterized in that: The connecting pipe (1) is provided with an internal thread (2) on the inner side, an inner wall (3) is fixedly installed inside the connecting pipe (1), a first sealing sleeve (4) is fixedly installed on the outer side of the inner wall (3), a positioning block (5) is fixedly installed on the outer side of the connecting pipe (1), a positioning ring (6) is provided at the bottom of the connecting pipe (1), a positioning groove (7) is provided on the outer side of the positioning ring (6), a positioning bolt (8) is fixedly installed on the outer side of the positioning block (5), a nut (9) is threadedly connected on the outer side of the positioning bolt (8), a second sealing sleeve (10) is fixedly installed on the outer side of the positioning ring (6), a connecting pipe (11) is provided on the outer side of the connecting pipe (11), a vertical pipe (12) is fixedly installed on the outer side of the connecting pipe (11), a through hole (13) is provided on the inner side of the vertical pipe (12), a flange (14) is fixedly installed on the top of the vertical pipe (12), and a plurality of positioning holes (15) are provided on the outer side of the positioning ring (6).

2. A pressure hard connection joint according to claim 1, characterized in that: The positioning block (5) and the positioning ring (6) are of the same size, and the positioning block (5) and the positioning ring (6) are provided in equal numbers, and the plurality of positioning blocks (5) and the positioning ring (6) are distributed in a ring shape with respect to the center line of the connecting pipe (1).

3. A pressure hard connection joint according to claim 1, characterized in that: The first sealing sleeve (4) is a rubber sealing sleeve, and the first sealing sleeve (4) is located at the bottom end of the internal thread (2).

4. A pressure hard connection joint according to claim 1, characterized in that: The positioning bolt (8) corresponds to the positioning block (5) one by one, and the positioning bolt (8) penetrates the positioning block (5), the positioning ring (6) and the connecting pipe (11) and extends to the outside thereof.

5. A pressure hard connection joint according to claim 1, characterized in that: The connecting pipe (11), the vertical pipe (12) and the through hole (13) are in an inverted "T" shape, and the connecting pipe (11), the vertical pipe (12) and the connecting pipe (1) are connected.

6. A pressure hard connection joint according to claim 1, characterized in that: Two identical connecting pipes (1) and positioning rings (6) are provided, and the two connecting pipes (1) and positioning rings (6) are symmetrically distributed about the center line of the connecting pipe (11).

7. A pressure hard connection joint according to claim 1, characterized in that: The second sealing sleeve (10) is a rubber sealing sleeve, and the second sealing sleeve (10) is located at the connection between the connecting pipe (11) and the positioning ring (6).

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