An annulus sealing shaft type tubing hanger

Abstract

The utility model relates to the technical field of oil pipe hanger, and disclose an annular space sealed axle type oil pipe hanger, first seat body, the first seat body inside is provided with lubricating mechanism, the lubricating mechanism includes the bottom disc fixed in the first seat body bottom end, the bottom disc inside is provided with lubricating groove, the bottom disc top side symmetry is fixed with the catheter, and the catheter is communicated with the inside of lubricating groove, the catheter top side buckle has the rubber plug, the bottom disc bottom side evenly is provided with the oil injection hole, the inside bottom end fixed of lubricating groove has the sponge pad, the inside top end sliding of lubricating groove is installed with the pressing plate, the utility model discloses through the structure of lubricating mechanism, through the cooperation of lubricating groove and sponge pad, can slowly transport lubricating oil to the seat body inside, thereby lubricating the inside component friction position, reduce the damage produced by friction, prolong the service life of hanger.

Description

Technical Field

[0001] This utility model relates to the technical field of tubing hangers, specifically an annular sealed shaft type tubing hanger. Background Technology

[0002] A tubing hanger is a device used to support and suspend tubing or other pipelines. It typically consists of supports, hangers, and clamps. It secures the pipeline while supporting its weight, thus ensuring that the pipeline does not deform.

[0003] A tubing hanger with announcement number CN215169874U features a base body with an installation channel. A conical groove is provided inside the installation channel, and slips are slidably installed inside the conical groove. The tubing passes through the installation channel, and the slips clamp the circumference of the tubing. One end of a drive component is connected to the slips, and the drive component drives multiple slips to slide along the generatrix of the conical groove, thereby clamping or releasing the tubing. This structure is simple to operate and convenient to use, and can stably clamp and suspend the tubing, ensuring its normal operation.

[0004] The above-mentioned tubing hanger also has a problem: when the tubing hanger is in use, the slips are pushed to slide inside the conical groove by the push rod. After long-term use, the contact surface between the slips and the conical groove will wear out due to friction, resulting in a short service life of the tubing hanger. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that when the tubing hanger is in use, the slips are pushed by the push rod to slide inside the conical groove, and after long-term use, the contact surface between the slips and the conical groove will wear out due to friction, resulting in a short service life of the tubing hanger.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An annular seal shaft-type tubing hanger, comprising:

[0009] The first seat body has a lubrication mechanism inside and a fixing mechanism on the bottom side.

[0010] The lubrication mechanism includes a chassis fixed to the bottom of the first body, a lubrication groove on the inner side of the chassis, symmetrically fixed guide tubes on the top side of the chassis and communicating with the inner side of the lubrication groove, a rubber plug on the top side of the guide tube, oil spray holes evenly opened on the bottom side of the chassis, a sponge pad fixed to the bottom of the inner side of the lubrication groove, and a pressure plate slidably installed on the top of the inner side of the lubrication groove.

[0011] As a further embodiment of this utility model: the oil injection hole is connected to the inner side of the lubrication groove, a threaded groove is provided on the circumferential surface of the chassis, and a threaded cylinder is fixedly installed on the chassis through the threaded groove.

[0012] As a further embodiment of this utility model: a first flange is fixed to the top of the first base body, and a first channel is opened on the inner side of the first base body.

[0013] As a further embodiment of this utility model: the fixing mechanism includes a round rod that slides through the inner side of the chassis, a limit cap is fixed at the top of the round rod, the round rod slides through the inner side of the lubrication groove, and the round rod is fixedly connected to the pressure plate.

[0014] As a further embodiment of this utility model: a limiting block is fixed at the bottom end of the round rod, and a spring is fixedly connected between the limiting block and the chassis, with the spring fitted onto the round rod.

[0015] As a further embodiment of this utility model: a tapered groove is provided at the bottom inner side of the threaded cylinder, a slip is slidably installed inside the tapered groove, a limit groove is symmetrically provided on the top side of the slip, and a limit block is slidably installed inside the limit groove.

[0016] As a further improvement of this utility model: a sealing groove is provided at the bottom inner side of the card, and a sealing ring is fitted and fixed inside the sealing groove.

[0017] As a further embodiment of this utility model: a conical platform is fixed at the center of the top side of the slip, a conical seat is fixed at the center of the bottom side of the chassis, a second seat body is fixed at the bottom end of the threaded cylinder, a second flange is fixed at the bottom end of the second seat body, and a second channel is opened inside the second seat body.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention utilizes a lubrication mechanism that works in conjunction with a lubrication groove and a sponge pad to slowly deliver lubricating oil to the inner side of the seat, thereby lubricating the friction points of the inner components, reducing damage caused by friction, and extending the service life of the suspension. Attached Figure Description

[0020] Figure 1 A schematic diagram of a shaft-type tubing hanger with an annular seal.

[0021] Figure 2 A bottom cross-sectional view of a lubrication mechanism for an annular seal shaft-type oil pipe hanger;

[0022] Figure 3 A side sectional view of a fixing mechanism for an annular seal shaft-type tubing hanger;

[0023] Figure 4 This is a schematic front sectional view of a partial structure of an annular sealed shaft-type tubing hanger.

[0024] In the diagram: 1. First seat; 101. Lubrication mechanism; 102. Fixing mechanism; 2. Chassis; 3. Threaded groove; 4. Lubrication groove; 5. Conduit; 6. Rubber plug; 7. Oil injection hole; 8. Sponge pad; 9. Pressure plate; 10. Round rod; 11. Limit cap; 12. Limit block; 13. Spring; 14. Slip; 15. Limit groove; 16. Sealing groove; 17. Sealing ring; 18. Conical platform; 19. Conical seat; 20. Threaded cylinder; 21. Conical groove; 22. Second seat; 23. First flange; 24. First channel; 25. Second flange; 26. Second channel. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Example 1:

[0029] Please see Figures 1-2 This is the first embodiment of the present utility model.

[0030] This embodiment provides an annular seal shaft-type tubing hanger, comprising:

[0031] The first seat 1 has a lubrication mechanism 101 on its inner side and a fixing mechanism 102 on its bottom side.

[0032] The lubrication mechanism 101 includes a chassis 2 fixed to the bottom of the first base 1. A lubrication groove 4 is provided on the inner side of the chassis 2. A guide tube 5 is symmetrically fixed on the top side of the chassis 2 and the guide tube 5 communicates with the inner side of the lubrication groove 4. A rubber plug 6 is fastened to the top side of the guide tube 5. Oil spray holes 7 are evenly provided on the bottom side of the chassis 2. A sponge pad 8 is fixed to the bottom of the inner side of the lubrication groove 4. A pressure plate 9 is slidably installed on the top of the inner side of the lubrication groove 4.

[0033] Specifically, the oil injection hole 7 is connected to the inner side of the lubrication groove 4, the circumferential surface of the chassis 2 is provided with a threaded groove 3, the chassis 2 is fixedly installed with a threaded cylinder 20 through the threaded groove 3, the top of the first seat 1 is fixed with a first flange 23, and the inner side of the first seat 1 is provided with a first channel 24.

[0034] Furthermore, due to the structure of the lubrication groove 4, lubricating oil can be added to the inside of the suspension through the oil injection hole 7 during use, reducing damage to its internal parts caused by friction and extending the service life of the suspension.

[0035] In use, open the rubber plug 6 and add lubricating oil to the inside of the lubrication groove 4 through the conduit 5, so that the sponge pad 8 inside the lubrication groove 4 can be immersed in the lubricating oil. Then, reattach the rubber plug 6 to the top of the conduit 5. The lubricating oil inside the lubrication groove 4 flows slowly to the bottom of the chassis 2 through the oil spray hole 7 to lubricate the parts that rub against each other, thereby reducing the damage caused by friction and extending the service life of the suspension.

[0036] In summary, through the structure of the lubrication mechanism 101, and by using the lubrication groove 4 in conjunction with the sponge pad 8, lubricating oil can be slowly delivered to the inside of the seat, thereby lubricating the friction points of the internal parts, reducing damage caused by friction, and extending the service life of the suspension.

[0037] Example 2:

[0038] Please see Figures 3-4 This is the second embodiment of the present utility model.

[0039] Specifically, the fixing mechanism 102 includes a round rod 10 that slides through the inner side of the chassis 2. A limit cap 11 is fixed at the top of the round rod 10. The round rod 10 slides through the inner side of the lubrication groove 4 and is fixedly connected to the pressure plate 9. A limit block 12 is fixed at the bottom of the round rod 10. A spring 13 is fixedly connected between the limit block 12 and the chassis 2, and the spring 13 is fitted on the round rod 10. A tapered groove 21 is opened at the bottom inner side of the threaded cylinder 20. A slip 14 is slidably installed inside the tapered groove 21. A limit groove 15 is symmetrically opened on the top side of the slip 14. A limit block 12 is slidably installed inside the limit groove 15. A sealing groove 16 is opened at the bottom inner side of the slip 14. A sealing ring 17 is fitted and fixed inside the sealing groove 16. A conical platform 18 is fixed at the center of the top side of the slip 14. A conical seat 19 is fixed at the center of the bottom side of the chassis 2.

[0040] Furthermore, the spring 13 pushes the slip 14 downward, causing it to clamp onto the pipe and fix it in place. After use, pulling the round rod 10 upward will release the fixation. The operation is simple and convenient.

[0041] Specifically, a conical platform 18 is fixed at the center of the top side of the slip 14, a conical seat 19 is fixed at the center of the bottom side of the chassis 2, a second seat 22 is fixed at the bottom end of the threaded cylinder 20, a second flange 25 is fixed at the bottom end of the second seat 22, and a second channel 26 is opened on the inner side of the second seat 22.

[0042] Furthermore, the structure of the conical platform 18 and the conical seat 19 allows the slip 14 to be pushed apart when it rises, thereby releasing the pipe from its fixation and making it easier for operators to remove the pipe.

[0043] In use, pull the limit cap 11 to raise the round rod 10. At this time, with the cooperation of the limit block 12 and the limit groove 15, the clamp 14 is raised. At the same time, the conical seat 19 pushes the conical platform 18 to separate, thus separating the clamp 14. Then, insert the pipe into the inner side of the first channel 24 and the second channel 26. Release the limit cap 11, and the spring 13 pushes the round rod 10 down, causing the clamp 14 to clamp onto the pipe. At this time, the sealing ring 17 is tightly attached to the pipe. The pipe, through its own weight, causes the clamp 14 to fall down. With the cooperation of the conical groove 21, the clamp 14 is tightly clamped onto the pipe surface to prevent the pipe from loosening and falling off. At the same time, the round rod 10 will drive the pressure plate 9 to slide inside the lubrication groove 4, squeezing the sponge pad 8, thereby lubricating the inner parts.

[0044] In summary, the structure of the fixing mechanism 102 can be combined with the weight of the pipe itself to increase the clamping force of the slip 14 and prevent the pipe from loosening and falling off after being clamped.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An annular seal shaft-type tubing hanger, comprising: The first seat (1) is characterized in that: a lubrication mechanism (101) is provided on the inner side of the first seat (1), and a fixing mechanism (102) is provided on the bottom side of the first seat (1). The lubrication mechanism (101) includes a chassis (2) fixed at the bottom of the first seat (1), a lubrication groove (4) is provided on the inner side of the chassis (2), a guide tube (5) is symmetrically fixed on the top side of the chassis (2), and the guide tube (5) communicates with the inner side of the lubrication groove (4). A rubber plug (6) is fastened on the top side of the guide tube (5), and oil spray holes (7) are evenly provided on the bottom side of the chassis (2). A sponge pad (8) is fixed at the bottom of the inner side of the lubrication groove (4), and a pressure plate (9) is slidably installed at the top of the inner side of the lubrication groove (4).

2. The annular seal shaft-type tubing hanger according to claim 1, characterized in that: The oil injection hole (7) is connected to the inner side of the lubrication groove (4). The circumferential surface of the chassis (2) is provided with a threaded groove (3). The chassis (2) is fitted with a threaded cylinder (20) through the threaded groove (3).

3. The annular seal shaft-type tubing hanger according to claim 1, characterized in that: The first seat (1) has a first flange (23) fixed at the top and a first channel (24) opened on the inner side of the first seat (1).

4. The annular seal shaft-type tubing hanger according to claim 1, characterized in that: The fixing mechanism (102) includes a round rod (10) that slides through the inner side of the chassis (2). A limit cap (11) is fixed at the top of the round rod (10). The round rod (10) slides through the inner side of the lubrication groove (4) and is fixedly connected to the pressure plate (9).

5. The annular seal shaft-type tubing hanger according to claim 4, characterized in that: A limiting block (12) is fixed at the bottom of the round rod (10), and a spring (13) is fixedly connected between the limiting block (12) and the chassis (2), and the spring (13) is fitted on the round rod (10).

6. The annular seal shaft-type tubing hanger according to claim 2, characterized in that: The inner bottom of the threaded cylinder (20) is provided with a tapered groove (21), and a slip (14) is slidably installed inside the tapered groove (21). A limit groove (15) is symmetrically provided on the top side of the slip (14), and a limit block (12) is slidably installed inside the limit groove (15).

7. The annular seal shaft-type tubing hanger according to claim 6, characterized in that: A sealing groove (16) is provided at the bottom inner side of the clasp (14), and a sealing ring (17) is fitted and fixed inside the sealing groove (16).

8. The annular seal shaft-type tubing hanger according to claim 7, characterized in that: A conical platform (18) is fixed at the center of the top side of the slip (14), a conical seat (19) is fixed at the center of the bottom side of the chassis (2), a second seat (22) is fixed at the bottom end of the threaded cylinder (20), a second flange (25) is fixed at the bottom end of the second seat (22), and a second channel (26) is opened on the inner side of the second seat (22).

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