A double sealing surface coupling long round thread casing connection buckle structure

Abstract

The application provides a double-sealing-surface coupling long-round thread casing coupling buckle type structure and relates to the field of threaded joints.The double-sealing-surface coupling long-round thread casing coupling buckle type structure comprises a joint, casing arranged on the two sides of the joint, a connecting mechanism arranged on the joint, a guide groove arranged on the joint, an extension part one arranged on the joint, and a connecting pipe slidingly arranged on the guide groove.In order to solve the problem that the casing and the joint are difficult to assemble in the prior art and the work efficiency is low, the connecting mechanism is arranged, the connecting pipe is driven to rotate by the connecting mechanism, the connection of a single casing is realized, the assembly difficulty in the oil exploitation environment is reduced, and the work efficiency is improved.The connecting mechanism is arranged, the problem that the hard impurities affect the thread engagement in the prior art is solved, and the connecting mechanism is arranged, the problem that the thread gap causes the assembly jam in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of threaded joints, and more specifically, to a double-sealing-surface coupled long oval threaded sleeve connection buckle structure. Background Technology

[0002] The double-sealed-surface coupling long oval thread casing connection is a special type of connection used for connecting casings in the field of oil and gas drilling. It is an important pipe fitting in the oil extraction process. Different types of casings are required during extraction. The surface casing protects the well from contamination by shallow water and shallow gas layers. Its core function is to enhance the sealing and stability of the casing connection, adapt to complex oil and gas well conditions, and ensure the safe and efficient operation of drilling and oil and gas extraction.

[0003] For example, the Chinese invention patent (application number: 202311069728.5) discloses a "multi-seal type gas-tight threaded joint structure for oil and gas well casing". The specification discloses that it includes a joint, the joint is threaded to a casing that is symmetrically distributed on the left and right, a sealing ring is provided between the casing and the joint, and the joint is provided with a pressure relief mechanism that is symmetrically distributed; the pressure relief mechanism includes intercepting members that are symmetrically distributed on the top and bottom.

[0004] However, the aforementioned multi-seal gas-tight threaded joint structure for oil and gas well casing has some shortcomings in practical use: In the existing technology, the connection and sealing between the joint and the casing are achieved by connecting the casing and the joint threads and squeezing the rubber ring. However, the threads at both ends of the joint are fixed. Therefore, when the casing needs to be threaded onto the joint, the casing needs to be aligned with the joint and rotated. Since the end of the casing away from the joint is connected to other equipment, when the casing is rotated, it needs to be rotated together with other equipment to achieve the assembly of the casing and the joint. In complex working environments, this will increase the assembly difficulty and reduce work efficiency.

[0005] Therefore, we have made improvements and proposed a double-sealing-surface coupled long oval threaded sleeve connection buckle structure. Summary of the Invention

[0006] The purpose of this invention is to address the problem that the assembly of sleeves and connectors is difficult, resulting in low work efficiency.

[0007] To achieve the above-mentioned objectives, this invention provides a double-sealing-surface coupled elongated threaded sleeve connection buckle structure to solve the aforementioned problems.

[0008] The application is as follows: Includes a connector, sleeves respectively disposed on both sides of the connector, and a connecting mechanism disposed on the connector; The connecting mechanism includes a guide groove on the connector, an extension on the connector, a connecting pipe slidably disposed on the guide groove, an extension on the connecting pipe, a threaded groove on the connecting pipe, a threaded ring on the sleeve, a jacking seat on the threaded groove, and a rubber ring on the jacking seat.

[0009] As a preferred technical solution of this application, the second extension is slidably disposed on the guide groove, the threaded ring and the threaded groove are adapted to each other, and the first extension and the second extension are adapted to each other.

[0010] As a preferred technical solution of this application, a sliding ring is slidably disposed in the threaded groove, a fixed post is disposed on the threaded groove, the sliding ring is slidably disposed on the fixed post, a lead screw is rotatably disposed on the connecting pipe, the sliding ring is threadedly connected to the lead screw, a knob is rotatably disposed on the connecting pipe, the knob is disposed on the lead screw, a spring is disposed in the threaded groove, and the actuating seat is slidably disposed on the threaded groove.

[0011] As a preferred technical solution of this application, a drive ring is rotatably provided on the sliding ring, and the two ends of the spring are respectively provided on the drive ring and the top moving seat.

[0012] As a preferred technical solution of this application, the threaded ring and the rubber ring are compatible.

[0013] As a preferred technical solution of this application, the connecting pipe is provided with a cleaning groove, and a sealing ring is threadedly connected to the connecting pipe, the sealing ring being adapted to the cleaning groove.

[0014] As a preferred technical solution of this application, the connecting pipe is provided with a sliding groove, a driving block is slidably disposed on the sliding groove, a second spring is disposed on the corresponding surface of the driving block and the sliding groove, and a semi-circular groove is disposed on the connector.

[0015] As a preferred technical solution of this application, the drive block is provided with a ball bearing that is adapted to the semi-circular groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. In order to solve the problem of low work efficiency due to the difficulty of assembling casing and joint in the prior art, this application sets up a connecting mechanism, which drives the connecting pipe to rotate to realize the connection of a single casing. This method reduces the assembly difficulty in the oil extraction environment and improves work efficiency. 2. Through the set connection mechanism, when the sleeve and connecting pipe are assembled, the threaded ring squeezes the rubber ring and drives it to rotate. The rubber ring changes and cleans the thread groove, avoiding hard impurities from sticking to the thread groove, reducing wear between threads, improving the service life of the components, and solving the problem of hard impurities affecting thread meshing in the prior art. 3. By using the connection mechanism, the connection pipe is vibrated during threaded assembly of the connecting pipe and the sleeve, eliminating the thread meshing clearance. The vibration reduces the jamming of the thread groove and thread ring during thread meshing, improving assembly efficiency and solving the problem of assembly jamming caused by thread clearance in the prior art. Attached Figure Description

[0017] Figure 1 A schematic diagram of the double-sealing-surface coupled long oval threaded sleeve connection buckle structure provided in this application; Figure 2 A schematic diagram of the overall structure of the connecting pipe for the double-sealing surface coupled long oval threaded sleeve connection buckle structure provided in this application; Figure 3 A partial cross-sectional structural diagram of the sleeve, connecting pipe and joint of the double-sealing surface coupled long oval threaded sleeve connection buckle structure provided in this application; Figure 4 The double-sealing surface coupled long oval threaded sleeve connection thread type structure provided in this application Figure 3 Enlarged structural diagram of area A in the middle; Figure 5 A schematic diagram of the internal structure of the connecting pipe for the double-sealing surface coupled long oval threaded sleeve connection buckle structure provided in this application; Figure 6 A schematic diagram of the internal structure of the thread groove of the double-sealing surface coupled long oval threaded sleeve connection buckle structure provided in this application; Figure 7 The double-sealing surface coupled long oval threaded sleeve connection thread type structure provided in this application Figure 6 Enlarged structural diagram of area B in the middle; Figure 8 A schematic diagram of the overall structure of the drive block and ball bearings for the double-sealed surface coupled long oval threaded sleeve connection buckle structure provided in this application.

[0018] The image shows: 1. Connector; 101. Sleeve; 2. Connecting mechanism; 201. Guide groove; 202. Extension 1; 203. Connecting pipe; 204. Extension 2; 205. Threaded groove; 206. Threaded ring; 207. Pushing seat; 208. Rubber ring; 209. Sliding ring; 210. Fixed column; 211. Lead screw; 212. Knob; 213. Spring 1; 214. Drive ring; 215. Cleaning groove; 216. Sealing ring; 217. Sliding groove; 218. Drive block; 219. Spring 2; 220. Semicircular groove; 221. Ball bearing. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] As described in the background section, the assembly of sleeves and fittings is difficult, resulting in low work efficiency.

[0021] To solve this technical problem, the present invention provides a double-sealing-surface coupled elongated threaded sleeve connection buckle structure, which is applied to threaded joints.

[0022] For details, please refer to Figure 1 - Figure 8 As shown, the double-sealing-surface coupled long oval threaded sleeve connection buckle structure specifically includes: a connector 1, sleeves 101 respectively disposed on both sides of the connector 1, and a connection mechanism 2 disposed on the connector 1; The connecting mechanism 2 includes a guide groove 201 provided on the connector 1, an extension 202 provided on the connector 1, a connecting pipe 203 slidably provided on the guide groove 201, an extension 204 provided on the connecting pipe 203, a threaded groove 205 provided on the connecting pipe 203, a threaded ring 206 provided on the sleeve 101, a jacking seat 207 provided on the threaded groove 205, and a rubber ring 208 provided on the jacking seat 207.

[0023] The double-sealing-surface coupled long oval threaded sleeve connection buckle structure provided by the present invention addresses the problem of low work efficiency caused by the difficulty of assembling sleeve 101 and connector 1 in the prior art. This application achieves the connection of a single sleeve 101 by setting a connection mechanism 2, which drives the connecting pipe 203 to rotate. This reduces the assembly difficulty in the oil extraction environment and improves work efficiency. By using the connection mechanism 2, when the sleeve 101 and the connecting pipe 203 are assembled, the threaded ring 206 squeezes the rubber ring 208 and drives it to rotate. The rubber ring 208 deforms and cleans the thread groove 205, preventing hard impurities from sticking to the thread groove 205, reducing wear between threads, improving the service life of the components, and solving the problem of hard impurities affecting thread meshing in the prior art. By using the connecting mechanism 2, when the connecting pipe 203 and the sleeve 101 are threadedly assembled, the connecting pipe 203 is vibrated to eliminate the thread meshing gap. The vibration reduces the jamming of the thread groove 205 and the thread ring 206 during thread meshing, improves the assembly efficiency, and solves the problem of assembly jamming caused by thread gap in the prior art.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a double-sealing-surface coupled long oval threaded sleeve connection buckle structure is provided, in which the second extension 204 is slidably disposed on the guide groove 201, the threaded ring 206 and the threaded groove 205 are adapted to each other, and the first extension 202 and the second extension 204 are adapted to each other. In use, the connecting pipe 203, together with the extension 204, slides along the guide groove 201, such as... Figure 4As shown, extension part 1 202 limits extension part 204 to prevent extension part 204 from disengaging from guide groove 201, thereby preventing connecting pipe 203 from disengaging from joint 1. When it is necessary to connect joint 1 and sleeve 101, align thread groove 205 and threaded ring 206 and rotate connecting pipe 203. By rotating connecting pipe 203, the threaded ring 206 and connecting pipe 203 are connected. When threaded ring 206 rotates and moves along thread groove 205, threaded ring 206 squeezes rubber ring 208, causing rubber ring 208 to deform. By deforming rubber ring 208 and sealing thread groove 205, the sealing between connecting pipe 203 and sleeve 101 is improved. Compared with the prior art, this method does not require rotating sleeve 101. The connection of a single sleeve 101 can be achieved by rotating connecting pipe 203. This method reduces assembly difficulty and improves work efficiency. Furthermore, a sliding ring 209 is slidably disposed in the threaded groove 205, a fixed post 210 is disposed on the threaded groove 205, the sliding ring 209 is slidably disposed on the fixed post 210, a lead screw 211 is rotatably disposed on the connecting pipe 203, the sliding ring 209 is threadedly connected to the lead screw 211, a knob 212 is rotatably disposed on the connecting pipe 203, the knob 212 is disposed on the lead screw 211, a spring 213 is disposed in the threaded groove 205, and a top seat 207 is slidably disposed on the threaded groove 205; By rotating knob 212, knob 212 rotates, driving lead screw 211 to rotate. Lead screw 211 rotates, driving sliding ring 209 to slide along fixed post 210. At this time, spring 213 is squeezed and compressed by push seat 207 and sliding ring 209. Figure 7 As shown, the squeezing pressure of the top seat 207 on the rubber ring 208 gradually increases, and the deformation of the rubber ring 208 gradually increases. By rotating the knob 212, the sealing degree of the sleeve 101 and the connecting pipe 203 is adjusted, thereby improving the reliability of the seal and reducing the probability of seal failure. Furthermore, a drive ring 214 is rotatably mounted on the sliding ring 209, and the two ends of the spring 213 are respectively mounted on the drive ring 214 and the top moving seat 207. When the threaded ring 206 and the threaded groove 205 are assembled, the elasticity of the spring 213 causes the rubber ring 208 to adhere to the threaded ring 206. When the threaded ring 206 rotates, the rubber ring 208 and the threaded ring 206 adhere and rotate synchronously. The rubber ring 208, the push seat 207, the spring 213, and the drive ring 214 rotate synchronously. The threaded ring 206 compresses the rubber ring 208, causing the rubber ring 208 to deform and adhere to the threaded groove 205. The rotation and displacement of the rubber ring 208 cleans the threaded groove 205. The corresponding surfaces of the threaded ring 206 and the rubber ring 208 are rough surfaces, which reduces the slippage that occurs when the threaded ring 206 is in contact with the rubber ring 208 and rotates. This increases the friction between the corresponding surfaces of the threaded groove 205 and the rubber ring 208. In this way, the rubber ring 208 cleans the threaded groove 205 during the assembly of the sleeve 101 and the connecting pipe 203, preventing hard impurities from sticking to the threaded groove 205. As a result, the wear between the threads is reduced during the assembly of the threaded ring 206 and the threaded groove 205, and the service life of the components is improved. Furthermore, the threaded ring 206 and the rubber ring 208 are compatible; When the threaded ring 206 disengages from the threaded groove 205, the elasticity of the spring 213 drives the rubber ring 208 to slide and disengage from the threaded groove 205. The rubber ring 208 is detachable and can be replaced, which improves the replacement efficiency of the rubber ring 208. The connection of a single sleeve 101 is achieved by driving the connecting pipe 203 to rotate through the connecting mechanism 2. This method reduces the assembly difficulty and improves the efficiency of work. When the sleeve 101 and the connecting pipe 203 are assembled, the threaded ring 206 squeezes the rubber ring 208 and drives it to rotate. The rubber ring 208 deforms and cleans the thread groove 205, preventing hard impurities from sticking to the thread groove 205, reducing wear between threads and improving the service life of the components.

[0028] Example 2 further optimizes the double-sealing-surface coupled elongated threaded sleeve connection buckle structure provided in Example 1. Specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a cleaning groove 215 is provided on the connecting pipe 203, and a sealing ring 216 is threadedly connected to the connecting pipe 203. The sealing ring 216 and the cleaning groove 215 are compatible. like Figure 2 and Figure 3As shown, the connecting pipe 203 has threads on its outer side, and the sealing ring 216 is threaded onto the surface thread of the connecting pipe 203. When the sealing ring 216 is rotated, the sealing ring 216 rotates and slides along the thread. When the sealing ring 216 releases the seal on the cleaning groove 215, the staff can clean the hard impurities cleaned by the rubber ring 208 through the cleaning groove 215, reducing the residue of hard impurities in the threaded groove 205. Furthermore, a sliding groove 217 is provided on the connecting pipe 203, a driving block 218 is slidably provided on the sliding groove 217, a spring 219 is provided on the corresponding surface of the driving block 218 and the sliding groove 217, and a semi-circular groove 220 is provided on the connector 1. Furthermore, a ball bearing 221 is rotatably mounted on the drive block 218, and the ball bearing 221 is adapted to the semi-circular groove 220; When the connecting pipe 203 is rotated, the threaded groove 205 inside the connecting pipe 203 rotates synchronously. The rotation of the threaded groove 205 realizes the assembly of the threaded ring 206. The ball 221 and the drive block 218 on the connecting pipe 203 rotate and move synchronously along the guide groove 201. When the ball 221 and the semi-circular groove 220 disengage, the spring 219 is compressed. The ball 221 and the drive block 218 slide along the sliding groove 217. When the ball 221 and the semi-circular groove 220 disengage, the spring 219 is compressed. When 220 engages, the ball 221 impacts the semi-circular groove 220, causing the connecting pipe 203 to vibrate. This vibration, in turn, promotes the engagement of the threaded ring 206 and the threaded groove 205 during rotational assembly of the sleeve 101 and the connecting pipe 203, reducing jamming during thread engagement and improving assembly efficiency. The engagement of the ball 221 and the semi-circular groove 220 positions the connecting pipe 203 on the connector 1. When the connecting pipe 203, connector 1, and sleeve 101 are assembled, as... Figure 1 As shown, the joint 1 can be rotated freely, and the angle of the joint 1 can be adjusted according to the surrounding working conditions to avoid interference between the joint 1 and surrounding objects. When the connecting pipe 203 and the sleeve 101 are threaded together by the connecting mechanism 2, the connecting pipe 203 is vibrated to eliminate the thread meshing gap. The vibration also reduces the jamming of the thread groove 205 and the thread ring 206 during thread meshing, thereby improving the assembly efficiency.

[0029] The usage process of the double-sealing-surface coupled long oval threaded sleeve connection buckle structure provided by this invention is as follows: In use, when it is necessary to connect the connector 1 and the sleeve 101, align the threaded groove 205 and the threaded ring 206 and rotate the connecting pipe 203. Rotating the connecting pipe 203 connects the threaded ring 206 and the connecting pipe 203. As the threaded ring 206 rotates and shifts along the threaded groove 205, it compresses the rubber ring 208, causing the rubber ring 208 to deform. This deformation of the rubber ring 208 seals the threaded groove 205, improving the seal between the connecting pipe 203 and the sleeve 101. This ensures the connecting ring is threaded into the threaded groove 205, thereby fixing the sleeve 101 onto the connecting pipe 203. Before the threaded assembly of sleeve 101 and connecting pipe 203, the elasticity of spring 213 causes rubber ring 208 to adhere to threaded ring 206. When threaded ring 206 rotates, rubber ring 208 and threaded ring 206 adhere and rotate synchronously. Rubber ring 208, push seat 207, spring 213, and drive ring 214 rotate synchronously. Threaded ring 206 compresses rubber ring 208, causing rubber ring 208 to deform and adhere to thread groove 205. The rotation and displacement of rubber ring 208 cleans thread groove 205. The corresponding surfaces of threaded ring 206 and rubber ring 208 are roughened to reduce the adhesion of threaded ring 206 to rubber ring 206. When the ring 208 rotates, slippage occurs. This method achieves the following during the assembly of the sleeve 101 and the connecting pipe 203: the rubber ring 208 cleans the thread groove 205, the connecting pipe 203 rotates and drives the ball 221 and the drive block 218 to rotate and move synchronously along the guide groove 201. When the ball 221 and the semi-circular groove 220 disengage, the spring 219 is compressed, and the ball 221 and the drive block 218 slide along the sliding groove 217. When the ball 221 and the semi-circular groove 220 engage, the ball 221 impacts the semi-circular groove 220, causing the connecting pipe 203 to vibrate, thereby causing the sleeve 101 and the connecting pipe 203 to vibrate. When the connecting pipe 203 is rotated during assembly, vibration promotes the engagement of the threaded ring 206 and the threaded groove 205, reducing jamming during thread engagement. By rotating the knob 212, the knob 212 rotates and drives the lead screw 211 to rotate. The lead screw 211 rotates and drives the sliding ring 209 to slide along the fixed column 210. At this time, the spring 213 is squeezed and compressed by the push seat 207 and the sliding ring 209. At this time, the squeezing force of the push seat 207 on the rubber ring 208 gradually increases, and the deformation of the rubber ring 208 gradually increases. By rotating the knob 212, the sealing degree of the sleeve 101 and the connecting pipe 203 is adjusted, improving the reliability of the seal.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A double-seal surface coupling long round thread casing connection buckle type structure, comprising a joint (1), a casing (101) arranged on both sides of the joint (1) respectively, characterized in that, Includes a connecting mechanism (2) disposed on the connector (1); The connecting mechanism (2) includes a guide groove (201) provided on the connector (1), an extension part one (202) provided on the connector (1), a connecting pipe (203) slidably provided on the guide groove (201), an extension part two (204) provided on the connecting pipe (203), a threaded groove (205) provided on the connecting pipe (203), a threaded ring (206) provided on the sleeve (101), a top moving seat (207) provided on the threaded groove (205), and a rubber ring (208) provided on the top moving seat (207). The connecting pipe (203) is provided with a sliding groove (217), a driving block (218) is slidably provided on the sliding groove (217), a second spring (219) is provided on the corresponding surface of the driving block (218) and the sliding groove (217), and a semi-circular groove (220) is provided on the connector (1). The drive block (218) is rotatably provided with a ball (221), which is adapted to the semi-circular groove (220).

2. A dual flush joint coupling long round thread casing connection buckle structure according to claim 1, characterized in that, The second extension (204) is slidably disposed on the guide groove (201), the threaded ring (206) and the threaded groove (205) are adapted to each other, and the first extension (202) and the second extension (204) are adapted to each other.

3. A dual flush joint coupling long round thread casing connection buckle structure according to claim 2, characterized in that, A sliding ring (209) is slidably disposed in the threaded groove (205). A fixed post (210) is disposed on the threaded groove (205). The sliding ring (209) is slidably disposed on the fixed post (210). A lead screw (211) is rotatably disposed on the connecting pipe (203). The sliding ring (209) is threadedly connected to the lead screw (211). A knob (212) is rotatably disposed on the connecting pipe (203). The knob (212) is disposed on the lead screw (211). A spring (213) is disposed in the threaded groove (205). The top moving seat (207) is slidably disposed on the threaded groove (205).

4. A dual flush coupling long round thread casing connection box type structure according to claim 3, characterized in that, A drive ring (214) is rotatably mounted on the sliding ring (209), and the two ends of the spring (213) are respectively mounted on the drive ring (214) and the top moving seat (207).

5. A dual flush coupling long round thread casing connection box type structure according to claim 4, characterized in that, The threaded ring (206) and the rubber ring (208) are compatible.

6. A dual flush coupling long round thread casing connection box type structure according to claim 5, characterized in that, The connecting pipe (203) is provided with a cleaning groove (215), and a sealing ring (216) is threadedly connected to the connecting pipe (203). The sealing ring (216) and the cleaning groove (215) are compatible.

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