Bolt type four-way structure for Christmas tree

Abstract

The utility model relates to the technical field of Christmas trees, in particular to a bolt type four-way structure for a Christmas tree, which comprises a four-way structure body, mounting ports are arranged on four sides of the four-way structure body, a flange I is fixedly mounted at one end of each group of mounting ports, a shell I is arranged on one side of each mounting port, a shell II is arranged on one side of each shell I, and a flange II is arranged on the other side of each shell II. A cover plate I and a cover plate II are respectively arranged at the upper ends of the shell I and the shell II; the four-way structure has the beneficial effects that by rotating the two sets of clamping blocks, the first cover plate and the second cover plate are pulled at the moment, the first shell and the second shell rotate in opposite directions at the moment, second flanges on other components are in bolted connection with first flanges on the four-way structure body, after connection is completed, one side of the first shell and one side of the second shell are combined, the clamping blocks are rotated, and the first shell and the second shell are connected through bolts; the bolts and the flanges can be protected to a certain extent, and the situation that the bolts and the flanges are rusted due to the fact that the bolts and the flanges are drenched by rainwater, and follow-up use is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil wellheads, specifically a bolt-type four-way structure for oil wellheads. Background Technology

[0002] A wellhead is a device used to extract oil in flowing wells and mechanically operated wells. It is the main equipment at the top of an oil and gas well for controlling and regulating oil and gas production. It mainly consists of three parts: casing head, tubing head, and the wellhead itself. When using a wellhead, a four-way connector is essential. The four-way connector is mainly used for diverting, controlling, and connecting other components to maintain wellhead pressure.

[0003] In the prior art, the four-way structure is connected to other components using bolts and flanges. However, since some oil wells need to be used outdoors, they are inevitably exposed to rain and are prone to rust, which affects subsequent disassembly, installation and use. Therefore, this utility model proposes a bolt-type four-way structure for oil wells to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a bolt-type four-way structure for oil wellheads to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bolt-type four-way structure for oil wellheads, comprising a four-way structure body, wherein each of the four sides of the four-way structure body is provided with an installation port, and a flange is fixedly installed at one end of each set of installation ports. A housing is provided on one side of the installation port, and a housing is provided on one side of the housing. A cover plate is provided on the upper end of the housing and the housing, respectively.

[0006] A second flange is provided above the first flange, and both the first flange and the second flange are provided with several sets of threaded holes.

[0007] A locking block is provided on the surface of the cover plate one, and a fixing rod two is provided on the surface of the cover plate two.

[0008] Preferably, a fixing rod is fixedly installed on both the front and rear sides of the cover plate, and two sets of locking blocks are provided. One end of each locking block is sleeved on the fixing rod, and the fixing rod is rotatably connected to the locking block. Two sets of fixing rods are provided, and one end of each set of fixing rods is fixedly installed on the front and rear sides of the cover plate.

[0009] Preferably, a base plate is fixedly installed at the bottom of both the first and second housings, and an installation groove is provided on the opposite side of both the first and second housings. There are four sets of installation grooves, which are respectively located at the front and rear ends of the sides of the first and second housings.

[0010] Preferably, a mounting block is provided between the first housing and the second housing. There are two sets of mounting blocks, and each set of mounting blocks has a rotating rod symmetrically arranged on its surface. The two ends of the rotating rods in both sets pass through the mounting block.

[0011] Preferably, one end of each of the two sets of mounting blocks is placed in one set of two mounting slots opened on one side of the housing, and the other end of each of the two sets of mounting blocks is placed in one set of two mounting slots opened on the other two sides of the housing. Both ends of the four sets of rotating rods are rotatably mounted on the sidewalls of the four sets of mounting slots.

[0012] Preferably, rubber pads are provided on the inner sidewalls of both cover plate one and cover plate two, and rubber pads are provided on opposite sides of cover plate one and cover plate two. Bolts are threaded into the threaded holes, and flange one and flange two are connected by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by rotating the two sets of locking blocks, the first and second cover plates are pulled, and the first and second housings rotate in opposite directions, connecting the second flange on other components to the first flange on the four-way structure body with bolts. After the connection is completed, the first and second housings can be rotated to merge one side of the first housing with one side of the second housing. Rotating the two sets of locking blocks completes the connection between the first and second housings, which can protect the bolts and flanges to a certain extent and prevent them from rusting due to rainwater, thus affecting subsequent use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of shell one and shell two of the present invention;

[0017] Figure 4 This is a partial exploded view of the structure of this utility model.

[0018] In the diagram: 1. Four-way structure body; 2. Mounting port; 3. Housing 1; 4. Housing 2; 5. Cover plate 1; 6. Cover plate 2; 7. Flange 1; 8. Flange 2; 9. Bolt; 10. Fixing rod 1; 11. Clamping block; 12. Fixing rod 2; 13. Mounting groove; 14. Mounting block; 15. Rotating rod; 16. Base plate; 17. Rubber pad 1; 18. Rubber pad 2. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a bolt-type four-way structure for oil wellheads, including a four-way structure body 1, with mounting ports 2 on all four sides of the four-way structure body 1. A flange 7 is fixedly installed at one end of each mounting port 2. A housing 3 is provided on one side of the mounting port 2, and a housing 4 is provided on one side of the housing 3. A cover plate 5 and a cover plate 6 are respectively provided on the upper ends of the housing 3 and the housing 4. A flange 8 is provided above the flange 7. Several sets of threaded holes are provided on both the flange 7 and the flange 8. A locking block 11 is provided on the surface of the cover plate 5, and a fixing rod 12 is provided on the surface of the cover plate 6.

[0021] In use, when the four-way structure body 1 is connected to other components through the mounting ports 2 and flange 7 on all four sides, rotating the two sets of locking blocks 11 will rotate one end of the locking block 11 away from the fixing rod 12. At this time, pulling the cover plate 5 and cover plate 6 will cause them to move in opposite directions. Simultaneously, the housing 3 and housing 4 will rotate in opposite directions through the mounting block 14 and rotating rod 15 at the bottom. When the housing 3 and housing 4 have rotated 90° relative to each other, the flange 8 on other components can then be connected to the four-way structure body 1. The flange 7 on the main body is connected by bolts 9. After the connection is completed, the housing 3 and housing 4 can be rotated to merge one side of housing 3 with one side of housing 4. At this time, the rubber pads 17 on the sides of the cover plate 5 and cover plate 6 are tightly attached to the mounting ports of other components. Then, the two sets of locking blocks 11 are rotated to lock one end of the two sets of locking blocks 11 onto the fixing rod 12, which completes the connection between housing 3 and housing 4. This can protect the bolts 9 and flange to a certain extent and prevent them from getting wet and rusting, which would affect subsequent use.

[0022] Example 2: Based on Example 1, to facilitate the fixing of housing 3 and housing 4, fixing rods 10 are fixedly installed on the front and rear sides of cover plate 5. Two sets of locking blocks 11 are provided, with one end of each locking block 11 sleeved on the fixing rod 10. The fixing rod 10 and the locking block 11 are rotatably connected. Two sets of fixing rods 12 are provided, with one end of each set fixedly installed on the front and rear sides of cover plate 6 respectively. Base plates 16 are fixedly installed at the bottom of both housing 3 and housing 4. Mounting grooves 13 are provided on opposite sides of both housing 3 and housing 4. Four mounting grooves 13 are provided in each mounting groove. The four sets of mounting slots 13 are respectively set at the front and rear ends of the sides of the first housing 3 and the second housing 4; the mounting blocks 14 are set between the first housing 3 and the second housing 4, and there are two sets of mounting blocks 14. Each set of mounting blocks 14 has a rotating rod 15 symmetrically arranged on its surface. The two ends of the two sets of rotating rods 15 pass through the mounting blocks 14; one end of the two sets of mounting blocks 14 is placed in the two sets of mounting slots 13 opened on the side of the first housing 3, and the other end of the two sets of mounting blocks 14 is placed in the two sets of mounting slots 13 opened on the side of the second housing 4. The two ends of the four sets of rotating rods 15 are rotatably mounted on the side walls of the four sets of mounting slots 13.

[0023] By rotating the two sets of locking blocks 11, one end of the locking block 11 is rotated away from the second fixing rod 12. At this time, the first cover plate 5 and the second cover plate 6 are pulled in opposite directions. At this time, the first housing 3 and the second housing 4 are rotated in opposite directions through the mounting block 14 and the rotating rod 15 set at the bottom. When the first housing 3 and the second housing 4 are rotated to 90° relative to each other, the second flange 8 on other parts can be connected to the first flange 7 on the four-way structure body 1 with bolts 9. After the connection is completed, the first housing 3 and the second housing 4 can be rotated to merge one side of the first housing 3 with one side of the second housing 4. At this time, the two sets of locking blocks 11 are rotated to lock one end of the two sets of locking blocks 11 onto the second fixing rod 12, thus completing the connection of the first housing 3 and the second housing 4.

[0024] Example 3: Based on Example 2, in order to further seal the housing 1 3 and housing 2 4 after they are combined, rubber gasket 17 is provided on the inner side wall of cover plate 1 5 and cover plate 2 6, rubber gasket 2 18 is provided on the opposite side of cover plate 1 5 and cover plate 2 6, bolts 9 are threaded in the threaded hole, and flange 1 7 and flange 2 8 are connected by bolts 9.

[0025] By using the rubber pads 17 and 18, the installed housings 3 and 4 can be further sealed during use, which can prevent rainwater from seeping in from the connection between housings 3 and 4 to a certain extent.

[0026] In actual use, by rotating the two sets of locking blocks 11, the cover plate 5 and the cover plate 6 are pulled. At this time, the housing 3 and the housing 4 rotate in opposite directions, and the flange 8 on other parts is connected to the flange 7 on the four-way structure body 1 by bolts 9. After the connection is completed, the housing 3 and the housing 4 can be rotated to merge one side of the housing 3 with one side of the housing 4. Rotating the two sets of locking blocks 11 can complete the connection of the housing 3 and the housing 4. This can protect the bolts 9 and the flange to a certain extent and prevent them from getting wet and rusting, which would affect subsequent use.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bolt-type four-way structure for oil wellheads, comprising a four-way structure body (1), characterized in that: The four-way structure body (1) is provided with mounting ports (2) on all four sides. Each mounting port (2) is fixedly installed with a flange (7) at one end. A housing (3) is provided on one side of the mounting port (2). A housing (4) is provided on one side of the housing (3). A cover plate (5) and a cover plate (6) are respectively provided on the upper ends of the housing (3) and the housing (4). A flange 2 (8) is provided above the flange 1 (7), and both the flange 1 (7) and the flange 2 (8) are provided with several sets of threaded holes; The cover plate one (5) is provided with a locking block (11), and the cover plate two (6) is provided with a fixing rod two (12).

2. The bolt-type four-way structure for an oil wellhead according to claim 1, characterized in that: The cover plate (5) is fixedly installed with a fixing rod (10) on both the front and rear sides. There are two sets of the locking blocks (11), and one end of each locking block (11) is sleeved on the fixing rod (10). The fixing rod (10) and the locking block (11) are rotatably connected. There are two sets of the fixing rods (12), and one end of each fixing rod (12) is fixedly installed on the front and rear sides of the cover plate (6).

3. The bolt-type four-way structure for an oil wellhead according to claim 1, characterized in that: Both the first shell (3) and the second shell (4) are fixedly installed with a base plate (16). The first shell (3) and the second shell (4) are provided with a mounting groove (13) on opposite sides. There are four sets of mounting grooves (13), which are respectively located at the front and rear ends of the sides of the first shell (3) and the second shell (4).

4. The bolt-type four-way structure for an oil wellhead according to claim 1, characterized in that: An installation block (14) is provided between the first housing (3) and the second housing (4). There are two sets of installation blocks (14). Each set of installation blocks (14) has a rotating rod (15) symmetrically arranged on its surface. The two ends of the rotating rods (15) of the two sets pass through the installation blocks (14).

5. The bolt-type four-way structure for an oil wellhead according to claim 4, characterized in that: One end of each of the two sets of mounting blocks (14) is placed in one of the two sets of mounting slots (13) opened on the side of the first housing (3), and the other end of each of the two sets of mounting blocks (14) is placed in one of the two sets of mounting slots (13) opened on the side of the second housing (4). Both ends of the four sets of rotating rods (15) are rotatably installed on the side wall of the four sets of mounting slots (13).

6. The bolt-type four-way structure for an oil wellhead according to claim 1, characterized in that: Rubber pad 1 (17) is provided on the inner side wall of cover plate 1 (5) and cover plate 2 (6). Rubber pad 2 (18) is provided on the opposite side of cover plate 1 (5) and cover plate 2 (6). Bolt (9) is threaded into the threaded hole. Flange 1 (7) and flange 2 (8) are connected by bolt (9).

Images