Christmas tree tubing hanger

Abstract

The utility model relates to the technical field of tubing hangers, in particular to a Christmas tree tubing hanger which comprises a first connecting disc and a second connecting disc, and a sealing gasket is arranged between the first connecting disc and the second connecting disc. Positioning holes and positioning pins are correspondingly inserted, so that a first connecting disc and a second connecting disc are close to each other, a first mounting ring drives an inserting plate to move, when the inserting plate drives a first limiting plate to enter a mounting groove, the inclined surface of the first limiting plate extrudes the inclined surface of a second limiting plate, and the second limiting plate is extruded to drive a sliding rod to move; when the inclined faces of the first limiting plate and the second limiting plate are staggered, the spring rebounds to drive the second limiting plate and the sliding rod to reset, the lower surface of the second limiting plate restrains the upper surface of the first limiting plate, at the moment, assembling of the first connecting disc and the second connecting disc can be completed, and assembling and disassembling are convenient. The defects of bolt connection are overcome, operation is easy, working time is saved, and practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of tubing hanger technology, specifically to a tree trunk tubing hanger. Background Technology

[0002] The Christmas tree is a wellhead device used to extract oil in flowing wells and mechanical wells. It is the main equipment at the top of the oil and gas well to control and regulate oil and gas production. It mainly consists of three parts: casing head, tubing head, and Christmas tree body. The Christmas tree tubing hanger is a device used in the Christmas tree to suspend the tubing string and seal the annular space between the tubing and the oil layer casing.

[0003] Currently, some pre-harvest tubing hangers on the market use bolt connections during assembly, which is inconvenient for both assembly and disassembly. Furthermore, the bolts are prone to rust, further increasing the difficulty of disassembly and making the operation cumbersome. Therefore, a pre-harvest tubing hanger is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a tree trunk tubing hanger to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil well tubing hanger, comprising a first connecting plate and a second connecting plate, a sealing gasket being provided between the first connecting plate and the second connecting plate, a first mounting ring being fixedly connected to the outer side wall of the first connecting plate, and a second mounting ring being fixedly connected to the outer side wall of the second connecting plate, two positioning holes being formed on the upper surface of the first mounting ring, and two positioning pins being welded to the upper surface of the second mounting ring, the outer side wall of the positioning pins being slidably connected to the inner side wall of the positioning holes, and two insert plates being fixedly connected to the lower surface of the first mounting ring, the two insert plates being far apart from each other. A first limiting plate is welded to one side of the second mounting ring. The outer side of the first limiting plate is in contact with a second limiting plate. The outer side of the second limiting plate is provided with an inclined surface that matches the first limiting plate. Two mounting grooves are opened on the upper surface of the second mounting ring. The second limiting plate is located inside the mounting groove. Two sliding rods are fixedly connected to the outer side of the second limiting plate. Four through holes are opened on the outer side of the second mounting ring. The sliding rods pass through the through holes. A spring is fixedly connected between the second limiting plate and the inner side of the mounting groove. The same pull plate is fixedly connected to the side of the two sliding rods away from the second limiting plate.

[0006] As a further preferred embodiment of this technical solution: the spring is sleeved on the outer side wall of the slide rod.

[0007] As a further preferred embodiment of this technical solution: a pull ring is fixedly connected to the outer wall of the pull plate.

[0008] As a further preferred embodiment of this technical solution, the upper surface of the first mounting ring is fixedly connected with two handles.

[0009] As a further preferred embodiment of this technical solution: a first connecting pipe is fixedly connected to the upper surface of the first connecting plate.

[0010] As a further preferred embodiment of this technical solution: a second connecting pipe is fixedly connected to the lower surface of the second connecting plate.

[0011] As a further preferred embodiment of this technical solution: an oil pipe clamping plate is fixedly connected to the inner wall of the second connecting plate.

[0012] As a further preferred embodiment of this technical solution: the sealing gasket is in close contact with the lower surface of the first connecting plate, and the sealing gasket is in close contact with the upper surface of the second connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention involves inserting the positioning holes and positioning pins into corresponding positions, bringing the first and second connecting discs closer together. The first mounting ring drives the insert plate to move. When the insert plate drives the first limiting plate into the mounting groove, the inclined surface of the first limiting plate presses against the inclined surface of the second limiting plate. The pressure on the second limiting plate causes the sliding rod to move, compressing the spring. When the inclined surfaces of the first and second limiting plates are misaligned, the spring rebounds, causing the second limiting plate and the sliding rod to return to their original positions. The lower surface of the second limiting plate constrains the upper surface of the first limiting plate. At this point, the assembly of the first and second connecting discs is complete. Assembly and disassembly are convenient, avoiding the disadvantages of bolted connections. The operation is simple, saving working time and enhancing practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first connecting plate in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second connecting disk in this utility model;

[0018] Figure 4 In this utility model Figure 3 Enlarged diagram of area A;

[0019] Figure 5 This is a cross-sectional view of the present invention;

[0020] Figure 6 In this utility model Figure 5 Enlarged schematic diagram of area B.

[0021] In the diagram: 1. First connecting plate; 2. Second connecting plate; 3. Sealing gasket; 4. First mounting ring; 5. Second mounting ring; 6. Positioning hole; 7. Positioning pin; 8. Insert plate; 9. First limiting plate; 10. Second limiting plate; 11. Mounting groove; 12. Slide rod; 13. Through hole; 14. Spring; 15. Pull plate; 16. Pull ring; 17. Handle; 18. First connecting pipe; 19. Second connecting pipe; 20. Oil pipe clamping piece. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Please refer to the accompanying drawings in the specification. This utility model provides a technical solution: an oil well tubing hanger, including a first connecting plate 1 and a second connecting plate 2. A sealing gasket 3 is provided between the first connecting plate 1 and the second connecting plate 2. A first mounting ring 4 is fixedly connected to the outer wall of the first connecting plate 1, and a second mounting ring 5 is fixedly connected to the outer wall of the second connecting plate 2. Two positioning holes 6 are formed on the upper surface of the first mounting ring 4, and two positioning pins 7 are welded to the upper surface of the second mounting ring 5. The outer wall of the positioning pins 7 is slidably connected to the inner wall of the positioning holes 6. Two insert plates 8 are fixedly connected to the lower surface of the second mounting ring 5. A first limiting plate 9 is welded to the side of each insert plate 8 that is far from each other. A second limiting plate 10 is movably contacted on the outer wall of the first limiting plate 9. The outer wall of the second limiting plate 10 has an inclined surface adapted to the first limiting plate 9. Two mounting grooves 11 are formed on the upper surface of the second mounting ring 5. The second limiting plate 10 is located inside the mounting grooves 11. Two sliding rods 12 are fixedly connected to the outer wall of the second limiting plate 10. Four through holes 13 are formed on the outer wall of the second mounting ring 5. The sliding rods 12 pass through the through holes 13. A spring 14 is fixedly connected between the positioning plate 10 and the inner wall of the mounting groove 11. A pull plate 15 is fixedly connected to the side of the two sliding rods 12 away from the second limiting plate 10. The positioning hole 6 is inserted into the corresponding position of the positioning pin 7, causing the first connecting plate 1 and the second connecting plate 2 to move closer together. The first mounting ring 4 and the second mounting ring 5 also move closer together. The first mounting ring 4 drives the insert plate 8 to move. When the insert plate 8 drives the first limiting plate 9 into the interior of the mounting groove 11, the inclined surface of the first limiting plate 9 presses against the inclined surface of the second limiting plate 10, causing the second limiting plate 10 to be compressed. The sliding rod 12 is moved, which compresses the spring 14. When the inclined surfaces of the first limiting plate 9 and the second limiting plate 10 are misaligned, the spring 14 rebounds, causing the second limiting plate 10 and the sliding rod 12 to return to their original positions. The lower surface of the second limiting plate 10 constrains the upper surface of the first limiting plate 9. At this point, the assembly of the first connecting plate 1 and the second connecting plate 2 can be completed. When disassembly is required, the two pull plates 15 are pulled outward. The pull plates 15 drive the sliding rod 12 and the second limiting plate 10 to move, releasing the constraint of the second limiting plate 10 on the first limiting plate 9, and the second connecting plate 2 can be lifted upward.

[0025] In this embodiment, specifically: the spring 14 is sleeved on the outer wall of the slide rod 12.

[0026] In this embodiment, specifically: a pull ring 16 is fixedly connected to the outer wall of the pull plate 15; to facilitate pulling the pull plate 15.

[0027] In this embodiment, specifically: two handles 17 are fixedly connected to the upper surface of the first mounting ring 4; this facilitates lifting the first mounting ring 4 and the first connecting plate 1 upwards.

[0028] In this embodiment, specifically: a first connecting pipe 18 is fixedly connected to the upper surface of the first connecting plate 1; it can be connected to the casing head of the oil well tree.

[0029] In this embodiment, specifically: a second connecting pipe 19 is fixedly connected to the lower surface of the second connecting plate 2; this facilitates docking with the downstream part of the oil well tree.

[0030] In this embodiment, specifically: an oil pipe clamping piece 20 is fixedly connected to the inner side wall of the second connecting plate 2; this facilitates clamping and suspending the oil pipe.

[0031] In this embodiment, specifically: the sealing gasket 3 is in close contact with the lower surface of the first connecting plate 1, and the sealing gasket 3 is in close contact with the upper surface of the second connecting plate 2.

[0032] The working principle of this utility model is as follows: Positioning holes 6 and positioning pins 7 are inserted in their corresponding positions, bringing the first connecting plate 1 and the second connecting plate 2 closer together. The first mounting ring 4 and the second mounting ring 5 also move closer together. The first mounting ring 4 drives the insert plate 8 to move. When the insert plate 8 drives the first limiting plate 9 into the mounting groove 11, the inclined surface of the first limiting plate 9 presses against the inclined surface of the second limiting plate 10. The second limiting plate 10, under pressure, moves the sliding rod 12, compressing the spring 14. When the inclined surfaces of the first limiting plate 9 and the second limiting plate 10 are misaligned, the spring 14 rebounds, driving the second limiting plate 10 to move. Plate 10 and slide bar 12 are reset, and the lower surface of the second limiting plate 10 constrains the upper surface of the first limiting plate 9. At this time, the assembly of the first connecting plate 1 and the second connecting plate 2 can be completed. When disassembly is required, pull the two pull plates 15 outward. The pull plates 15 drive the slide bar 12 and the second limiting plate 10 to move, releasing the constraint of the second limiting plate 10 on the first limiting plate 9, and the second connecting plate 2 can be lifted upward. This constitutes the oil well tubing hanger, which is relatively convenient to assemble and disassemble, avoids the disadvantages of bolt connection, is relatively simple to operate, saves working time, and is more practical.

[0033] 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 tree trunk tubing hanger, comprising a first connecting disc (1) and a second connecting disc (2), characterized in that: A sealing gasket (3) is provided between the first connecting plate (1) and the second connecting plate (2). A first mounting ring (4) is fixedly connected to the outer wall of the first connecting plate (1), and a second mounting ring (5) is fixedly connected to the outer wall of the second connecting plate (2). Two positioning holes (6) are opened on the upper surface of the first mounting ring (4), and two positioning pins (7) are welded to the upper surface of the second mounting ring (5). The outer wall of the positioning pin (7) is slidably connected to the inner wall of the positioning hole (6). Two insert plates (8) are fixedly connected to the lower surface of the first mounting ring (4). A first limiting plate (9) is welded to the side of the two insert plates (8) that are far apart from each other. The outer wall of the first limiting plate (9) is in movable contact with the second limiting plate (9). The second limiting plate (10) has an outer wall with a slope that matches the first limiting plate (9). The upper surface of the second mounting ring (5) has two mounting grooves (11). The second limiting plate (10) is located inside the mounting grooves (11). The outer wall of the second limiting plate (10) is fixedly connected to two sliding rods (12). The outer wall of the second mounting ring (5) has four through holes (13). The sliding rods (12) pass through the through holes (13). A spring (14) is fixedly connected between the second limiting plate (10) and the inner wall of the mounting groove (11). The two sliding rods (12) are fixedly connected to the same pull plate (15) on the side away from the second limiting plate (10).

2. The wellhead tubing hanger according to claim 1, characterized in that: The spring (14) is sleeved on the outer wall of the slide rod (12).

3. The wellhead tubing hanger according to claim 2, characterized in that: A pull ring (16) is fixedly connected to the outer wall of the pull plate (15).

4. The wellhead tubing hanger according to claim 2, characterized in that: Two handles (17) are fixedly connected to the upper surface of the first mounting ring (4).

5. The wellhead tubing hanger according to claim 2, characterized in that: The first connecting pipe (18) is fixedly connected to the upper surface of the first connecting plate (1).

6. The wellhead tubing hanger according to claim 2, characterized in that: The lower surface of the second connecting plate (2) is fixedly connected to the second connecting pipe (19).

7. The wellhead tubing hanger according to claim 6, characterized in that: The inner wall of the second connecting plate (2) is fixedly connected with an oil pipe clamping piece (20).

8. The wellhead tubing hanger according to claim 6, characterized in that: The sealing gasket (3) is in close contact with the lower surface of the first connecting plate (1), and the sealing gasket (3) is in close contact with the upper surface of the second connecting plate (2).

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