Corrosion-resistant heavy hexagon nut for submarine oil drilling and production equipment

Abstract

The utility model discloses a corrosion-resistant heavy hexagon nut for submarine oil drilling and production equipment, which comprises a nut body, a first rubber sleeve is arranged on the nut body, an extrusion plate is mounted below the nut body, a mounting groove is formed in the extrusion plate, a second rubber sleeve is mounted in the mounting groove, and the extrusion plate is arranged at the bottom end of the nut body through a sliding assembly. A protective sleeve is arranged on the outer side of the nut body, a guide assembly is arranged on the protective sleeve, and a locking assembly is arranged on the guide assembly. According to the corrosion-resistant heavy hexagon nut for the submarine oil drilling and production equipment, through the design of the first rubber sleeve, the second rubber sleeve and the protective sleeve, an additional protective layer can be provided for the nut body in a humid or corrosive environment, the corrosion risk is reduced, and the service life of the nut body is prolonged. And the rubber ring at the bottom end of the protective sleeve improves the sealing performance between the protective sleeve and the extrusion plate, the connection reliability is improved, and the stability and safety of the nut in a severe environment are ensured.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically a heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling and production equipment. Background Technology

[0002] In the utility model patent application CN207989497U, published on October 19, 2018, entitled "Nut", this utility model discloses a nut belonging to the field of nut technology. The key technical point is that the nut includes a nut body and a clip fitted onto the nut body. The clip includes a connecting part and a locking part. The locking part extends outward from one side of the connecting part, and its width gradually decreases away from the connecting part. A fitting hole is provided in the middle of the connecting part, and several spring pieces are provided at the top of the connecting part. These spring pieces are evenly arranged around the fitting hole. The clip is fitted onto the nut body through the fitting hole, and the nut body and the spring pieces form an interference fit, causing the spring pieces to compress the nut body. In this utility model, during assembly, the locking part is secured to surrounding components, restricting the rotation of the nut. This prevents the nut from rotating with the bolt when tightening, facilitating bolt installation. Simultaneously, the spring pieces ensure a high degree of integration between the clip and the nut body, preventing slippage of the clip relative to the nut body.

[0003] In the aforementioned patents or prior art, since subsea oil drilling equipment is mainly used in marine environments, high humidity, high salinity, high pressure, and potentially corrosive chemicals can accelerate the corrosion process of nuts, leading to a weakening of material strength, a gradual decline in its mechanical properties, and affecting its fastening ability and the stability of its overall structure. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling and production equipment, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling and production equipment, comprising a nut body, a first rubber sleeve on the nut body, a compression plate installed below the nut body, an installation groove on the compression plate, a second rubber sleeve installed in the installation groove, the compression plate being disposed at the bottom end of the nut body via a sliding component, a protective sleeve for protection on the outside of the nut body, a guide component cooperating with the nut body on the protective sleeve, and a locking component on the guide component.

[0006] Furthermore, the sliding assembly includes multiple sliding rods disposed on the extrusion plate, the bottom end of the nut body is provided with a sliding groove that cooperates with the sliding rods, and the sliding rods are provided with limiting components.

[0007] Furthermore, the limiting component includes a limiting block disposed at the top of the slide rod, and the slide groove is provided with a limiting groove that cooperates with the limiting block.

[0008] Furthermore, the guide assembly includes multiple guide rods disposed on the inner wall of the protective sleeve, and the outer wall of the nut body is provided with guide grooves that cooperate with the guide rods.

[0009] Furthermore, the locking assembly includes a groove formed on the guide rod, a locking block provided in the groove, and the locking block is set in the groove by a reset member, and the nut body is provided with a slot that cooperates with the locking block.

[0010] Furthermore, the reset component includes a spring disposed at the end of the locking block, and the end of the spring away from the locking block is connected to the inner wall of the groove.

[0011] Furthermore, a rubber ring is provided at the bottom of the protective sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling and production equipment is reasonable and has the following advantages:

[0013] (1) This design facilitates the protection of the nut body through the cooperation between the first rubber sleeve, the extrusion plate, the mounting groove, the second rubber sleeve, the protective sleeve, and the rubber ring. By setting the first rubber sleeve and the second rubber sleeve on the extrusion plate on the nut body, and setting the protective sleeve on the outside of the nut body, the protective performance of the nut is significantly enhanced. These rubber sleeves and protective sleeves can not only prevent the nut body from physical damage, such as bumps or scratches, but also provide an additional protective layer for the nut body in humid or corrosive environments, reducing the risk of corrosion and thus extending the service life of the nut body. In addition, the rubber ring at the bottom of the protective sleeve increases the sealing between the protective sleeve and the extrusion plate, making it fit more tightly and further enhancing the protective performance of the nut. This design not only improves the corrosion resistance of the nut, but also increases the reliability of the connection, ensuring the stability and safety of the nut in harsh environments.

[0014] (2) The design facilitates the installation of the protective sleeve through the cooperation between the guide groove, guide rod, groove, spring and locking block. The design of the guide rod and guide groove allows the protective sleeve to slide down along a predetermined path, reducing the complexity of the assembly process, maintaining the stability of the connection between the protective sleeve and the nut body, preventing misalignment due to external force, and avoiding direct friction to reduce wear. The design of the locking components, including the locking block and reset component, allows the protective sleeve to be stably fixed on the nut body, preventing accidental detachment during installation or use. This design not only improves the convenience of installation, but also ensures the stability and reliability of installation, enabling the nut to play a more effective role in the subsea oil drilling equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional explosion-proof structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the nut body of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the extrusion plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the cross-section of the protective sleeve of this utility model;

[0021] Figure 7 This is a partially enlarged schematic diagram of part A of this utility model.

[0022] In the diagram: 100, nut body; 101, slide groove; 102, guide groove; 103, retaining groove; 104, first rubber sleeve; 200, extrusion plate; 201, mounting groove; 202, second rubber sleeve; 203, slide rod; 204, limiting block; 300, protective sleeve; 301, guide rod; 302, groove; 303, spring; 304, retaining block; 305, rubber ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Please see Figure 1-7 The present invention provides a technical solution as follows:

[0025] Example 1:

[0026] A heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment includes a nut body 100, a first rubber sleeve 104 on the nut body 100, a compression plate 200 installed below the nut body 100, an installation groove 201 on the compression plate 200, a second rubber sleeve 202 installed in the installation groove 201, the compression plate 200 being mounted at the bottom of the nut body 100 via a sliding assembly, and a protective sleeve 300 for protection on the outside of the nut body 100, the protective sleeve 300 having a guide assembly that cooperates with the nut body 100, and a locking assembly on the guide assembly.

[0027] The sliding assembly includes a plurality of sliding rods 203 disposed on the extrusion plate 200. The bottom end of the nut body 100 is provided with a sliding groove 101 that cooperates with the sliding rods 203. The sliding rods 203 are provided with limiting members.

[0028] The limiting component includes a limiting block 204 disposed at the top of the slide bar 203, and the slide groove 101 is provided with a limiting groove that cooperates with the limiting block 204.

[0029] The guiding assembly includes a plurality of guide rods 301 disposed on the inner wall of the protective sleeve 300, and a guide groove 102 that cooperates with the guide rods 301 is provided on the outer wall of the nut body 100.

[0030] The locking assembly includes a groove 302 formed on the guide rod 301, a locking block 304 provided in the groove 302, and the locking block 304 is set in the groove 302 by a reset member. The nut body 100 is provided with a slot 103 that cooperates with the locking block 304.

[0031] The reset component includes a spring 303 disposed at the end of the locking block 304, and the end of the spring 303 away from the locking block 304 is connected to the inner wall of the groove 302.

[0032] The protective sleeve 300 has a rubber ring 305 at its bottom end.

[0033] Working principle: In use, the protective sleeve 300 is first slidably fitted onto the outer surface of the nut body 100. The guide rod 301 and guide groove 102 are aligned, allowing the guide rod 301 to move downwards along the guide groove 102, serving a guiding function and facilitating locking by the locking assembly. The design of the guide rod 301 and guide groove 102 allows the protective sleeve 300 to slide downwards along a predetermined path, thereby improving the accuracy and consistency of the locking assembly's connection. Furthermore, the guide rod 301 and guide groove 102 reduce the complexity of the assembly process, maintain the stability of the connection between the protective sleeve 300 and the nut body 100, and prevent misalignment due to external forces. To avoid direct friction and reduce wear, the protective sleeve 300 moves downwards. Due to the guide groove 102, the locking block 304 retracts into the groove 302 under the action of the spring 303. When it encounters the groove 103, the restriction is released, and the locking block 304 is driven into the groove 103 under the action of the spring 303 to complete the fixation. The protective sleeve 300 can prevent the nut body 100 from physical damage, such as bumps or scratches. At the same time, in humid or corrosive environments, the protective sleeve 300 can provide an additional protective layer for the nut body 100, reduce the risk of corrosion, extend the service life of the nut body 100, and increase the reliability of the connection.

[0034] Next, the nut body 100 is turned so that the extrusion plate 200 is close to the equipment. Then, the extrusion plate 200 contacts the equipment and the nut body 100 is turned. At this time, the slide rod 203 slides in the slide groove 101, so that the limiting block 204 is engaged in the limiting groove in the slide groove 101. The nut body 100 extrudes the second rubber sleeve 202. The second rubber sleeve 202 seals the gap between the nut body 100 and the screw. At this time, the extrusion plate 200 contacts the protective sleeve 300 and extrudes the rubber ring 305. The rubber ring 305 located at the bottom of the protective sleeve 300 increases the sealing between the protective sleeve 300 and the extrusion plate 200, making them fit more tightly.

[0035] Finally, after installation, the protective sleeve 300 and the compression plate 200 form a protective sleeve to protect the nut body 100 and prevent it from being corroded, so as to better protect it.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling and production equipment, comprising a nut body (100), characterized in that: The nut body (100) is provided with a first rubber sleeve (104), and a compression plate (200) is installed under the nut body (100). The compression plate (200) is provided with an installation groove (201), and a second rubber sleeve (202) is installed in the installation groove (201). The compression plate (200) is set at the bottom of the nut body (100) through a sliding component. The outer side of the nut body (100) is provided with a protective sleeve (300) for protection. The protective sleeve (300) is provided with a guide component that cooperates with the nut body (100), and the guide component is provided with a locking component.

2. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 1, characterized in that: The sliding assembly includes multiple slide rods (203) disposed on the extrusion plate (200), the bottom end of the nut body (100) is provided with a slide groove (101) that cooperates with the slide rods (203), and the slide rods (203) are provided with limiting members.

3. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 2, characterized in that: The limiting component includes a limiting block (204) disposed at the top of the slide bar (203), and the slide groove (101) is provided with a limiting groove that cooperates with the limiting block (204).

4. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 1, characterized in that: The guide assembly includes a plurality of guide rods (301) disposed on the inner wall of the protective sleeve (300), and a guide groove (102) that cooperates with the guide rods (301) is provided on the outer wall of the nut body (100).

5. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 4, characterized in that: The locking assembly includes a groove (302) formed on the guide rod (301), a locking block (304) is provided in the groove (302), and the locking block (304) is set in the groove (302) by a reset member, and the nut body (100) is provided with a slot (103) that cooperates with the locking block (304).

6. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 5, characterized in that: The reset component includes a spring (303) disposed at the end of the locking block (304), and the end of the spring (303) away from the locking block (304) is connected to the inner wall of the groove (302).

7. The heavy-duty hexagonal nut for corrosion-resistant subsea oil drilling equipment according to claim 1, characterized in that: The protective sleeve (300) is provided with a rubber ring (305) at the bottom.

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