Double-sealing-face coupling type long round thread sleeve connecting buckle type structure

Abstract

The invention provides a double-sealing-face coupling type long round threaded sleeve connecting buckle type structure, and relates to the field of threaded connectors, the double-sealing-face coupling type long round threaded sleeve connecting buckle type structure comprises a connector, sleeves arranged on the two sides of the connector respectively, and a connecting mechanism arranged on the connector; the connecting mechanism comprises a guide groove formed in the connector, a first extending part arranged on the connector and a connecting pipe arranged on the guide groove in a sliding mode. In order to solve the problem that in the prior art, the assembly difficulty of the sleeve and the connector is large, and consequently the working efficiency is low, the connecting mechanism is arranged, so that the sleeve and the connector can be conveniently assembled, and the working efficiency is improved. The connecting mechanism drives the connecting pipe to rotate to achieve connection of single casing pipes, in this way, the assembling difficulty in the oil exploitation environment is reduced, and the working efficiency is improved; through the arrangement of the connecting mechanism, the problem that hard impurities affect thread meshing in the prior art is solved; and through the arranged connecting mechanism, the problem of assembly blockage caused by thread gaps in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of threaded joints, in particular to a double sealing surface coupling type long round thread casing connection buckle structure. BACKGROUND

[0002] The double sealing surface coupling type long round thread casing connection buckle structure is a special buckle structure used for connecting casings in the field of oil and gas drilling, is an important pipe fitting in the process of oil exploitation, and needs to use different types of casings in the process of exploitation. The surface casing protects the drilling well, so as to avoid pollution of the shallow water layer and the shallow gas layer. The core function is to strengthen the sealing and stability of the casing connection, adapt to complex oil and gas well conditions, and ensure the safe and efficient drilling and oil and gas exploitation.

[0003] For example, the "multi-sealing type gas seal buckle threaded joint structure for oil and gas well casing" disclosed in Chinese invention patent (application number: 202311069728.5) has the following disclosure in the specification: it comprises a joint, the joint is threadedly connected with left and right symmetrically distributed casings, a sealing ring is arranged between the casing and the joint, and the joint is provided with symmetrically distributed pressure relief mechanisms; the pressure relief mechanism comprises upper and lower symmetrically distributed intercepting pieces.

[0004] However, the above-mentioned multi-sealing type gas seal buckle threaded joint structure for oil and gas well casing still has some deficiencies in the actual use process: in the above-mentioned prior art, the casing and the joint are threadedly connected and the rubber ring is extruded, so as to realize the communication and sealing of the joint and the casing. However, the threads at both ends of the joint are fixed. Therefore, when the casing needs to be threadedly connected to 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 with other equipment, the casing needs to be rotated together with the other equipment, thereby realizing the assembly of the casing and the joint. For complex working environments, this will increase the assembly difficulty and reduce the work efficiency.

[0005] Therefore, we improve it and propose a double sealing surface coupling type long round thread casing connection buckle structure. SUMMARY

[0006] The purpose of the present application is to solve the problem of high assembly difficulty of the casing and the joint, which reduces the work efficiency.

[0007] In order to achieve the above-mentioned application purpose, the present application provides a double sealing surface coupling type long round thread casing connection buckle structure to solve the above-mentioned problems.

[0008] The present application is as follows: It comprises a joint, casings arranged on both sides of the joint respectively, and a connecting mechanism arranged on the joint. The connecting mechanism comprises a guide groove arranged on the joint, an extension one arranged on the joint, a connecting pipe slidingly arranged on the guide groove, an extension two arranged on the connecting pipe, a threaded groove arranged on the connecting pipe, a threaded ring arranged on the sleeve, a jacking seat arranged on the threaded groove, and a rubber ring arranged on the jacking seat.

[0009] As a preferred technical scheme of the present application, the extension two is slidingly arranged on the guide groove, the threaded ring and the threaded groove are matched, and the extension one and the extension two are matched.

[0010] As a preferred technical scheme of the present application, a sliding ring is slidingly arranged in the threaded groove, a fixing column is arranged on the threaded groove, the sliding ring is slidingly arranged on the fixing column, a lead screw is rotatably arranged on the connecting pipe, the sliding ring is threadedly connected to the lead screw, a knob is rotatably arranged on the connecting pipe, the knob is arranged on the lead screw, a spring one is arranged in the threaded groove, and the jacking seat is slidingly arranged on the threaded groove.

[0011] As a preferred technical scheme of the present application, a driving ring is rotatably arranged on the sliding ring, and two ends of the spring one are arranged on the driving ring and the jacking seat respectively.

[0012] As a preferred technical scheme of the present application, the threaded ring and the rubber ring are matched.

[0013] As a preferred technical scheme of the present application, a cleaning groove is arranged on the connecting pipe, and a blocking ring is threadedly connected to the connecting pipe, the blocking ring and the cleaning groove being matched.

[0014] As a preferred technical scheme of the present application, a sliding groove is arranged on the connecting pipe, a driving block is slidingly arranged on the sliding groove, a spring two is arranged on the corresponding surfaces of the driving block and the sliding groove, and a semicircular groove is arranged on the joint.

[0015] As a preferred technical scheme of the present application, a ball is rotatably arranged on the driving block, and the ball and the semicircular groove are matched.

[0016] Compared with the prior art, the present application has the following advantages: In the scheme of the present application: 1. In order to solve the problem that the sleeve and the joint are difficult to assemble in the prior art, thereby reducing the work efficiency, the connecting mechanism is arranged, the connecting pipe is driven to rotate by the connecting mechanism, the connection of a single sleeve is realized, the assembly difficulty in the oil exploitation environment is reduced, and the work efficiency is improved. 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 one, 203, connecting pipe, 204, extension two, 205, threaded groove, 206, threaded ring, 207, jacking seat, 208, rubber ring, 209, sliding ring, 210, fixed column, 211, screw, 212, knob, 213, spring one, 214, drive ring, 215, cleaning groove, 216, plugging ring, 217, sliding groove, 218, drive block, 219, spring two, 220, semicircular groove, 221, ball. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0020] As described in the background, the sleeve and the joint are difficult to assemble, which makes the work efficiency low.

[0021] In order to solve this technical problem, the present application provides a double-sealing surface coupling type long circular thread sleeve connection buckle structure, which is applied to a threaded joint.

[0022] Specifically, please refer to Figure 1 - Figure 8 As shown in the figure, the double-sealing surface coupling type long circular thread sleeve connection buckle structure specifically comprises: a joint 1, sleeves 101 arranged on both sides of the joint 1 respectively, and a connecting mechanism 2 arranged on the joint 1. The connecting mechanism 2 comprises a guide groove 201 arranged on the joint 1, an extension one 202 arranged on the joint 1, a connecting pipe 203 slidingly arranged on the guide groove 201, an extension two 204 arranged on the connecting pipe 203, a threaded groove 205 arranged on the connecting pipe 203, a threaded ring 206 arranged on the sleeve 101, a jacking seat 207 arranged on the threaded groove 205, and a rubber ring 208 arranged on the jacking seat 207.

[0023] The double-sealing surface coupling type long circular thread sleeve connection buckle structure provided by the present application solves the problem that the sleeve 101 and the joint 1 are difficult to assemble in the prior art, which makes the work efficiency low. The connecting mechanism 2 is arranged, the connecting pipe 203 is driven to rotate by the connecting mechanism 2, the connection of a single sleeve 101 is realized, the assembly difficulty in the oil exploitation environment is reduced, and the work efficiency is improved. Through the setting of the connecting mechanism 2, when the sleeve 101 and the connecting pipe 203 are assembled, the rubber ring 208 is extruded and rotated by the threaded ring 206, the rubber ring 208 is deformed and the threaded groove 205 is cleaned, hard impurities are prevented from sticking to the threaded groove 205, the wear between threads is reduced, the service life of the component is improved, and the problem of hard impurities affecting the thread engagement in the prior art is solved. Through the setting of the connecting mechanism 2, when the sleeve 101 and the connecting pipe 203 are assembled, the rubber ring 208 is extruded and rotated by the threaded ring 206, the rubber ring 208 is deformed and the threaded groove 205 is cleaned, hard impurities are prevented from sticking to the threaded groove 205, the wear between threads is reduced, the service life of the component is improved, and the problem of hard impurities affecting the thread engagement in the prior art is solved.

[0024] In order to enable personnel in the technical field to better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings.

[0025] It should be noted that the embodiments in the application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0026] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] Embodiment 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , a double-sealing surface coupling type long circular thread sleeve connecting buckle type structure, the extension part two 204 is slidably arranged on the guide groove 201, the threaded ring 206 and the threaded groove 205 are matched, the extension part one 202 and the extension part two 204 are matched; In use, the connecting pipe 203 slides along the guide groove 201 together with the extension part two 204, as Figure 4As shown, the extension part one 202 limits the extension part two 204, preventing the extension part two 204 from being separated from the guide groove 201, and further preventing the connecting pipe 203 from being separated from the joint 1. When it is needed to connect the joint 1 and the sleeve pipe 101, the threaded groove 205 and the threaded ring 206 are aligned and the connecting pipe 203 is rotated to connect the threaded ring 206 and the connecting pipe 203. When the threaded ring 206 rotates and displaces in the threaded groove 205, the threaded ring 206 extrudes the rubber ring 208, so that the rubber ring 208 deforms. The rubber ring 208 deforms and blocks the threaded groove 205, improving the sealing between the connecting pipe 203 and the sleeve pipe 101. Compared with the prior art, the connecting pipe 203 is rotated to realize the connection of a single sleeve pipe 101, which reduces the assembly difficulty and improves the work efficiency. Further, the threaded groove 205 is slidably provided with a sliding ring 209, and the threaded groove 205 is provided with a fixed column 210. The sliding ring 209 is slidably arranged on the fixed column 210. The connecting pipe 203 is rotatably provided with a lead screw 211. The sliding ring 209 is threadedly connected to the lead screw 211. The connecting pipe 203 is rotatably provided with a knob 212, which is arranged on the lead screw 211. The threaded groove 205 is provided with a spring one 213. The top seat 207 is slidably arranged on the threaded groove 205. By rotating the knob 212, the knob 212 is rotated and drives the lead screw 211 to rotate. The lead screw 211 is rotated and drives the sliding ring 209 to slide along the fixed column 210. At this time, the spring one 213 is extruded and compressed by the top seat 207 and the sliding ring 209. Figure 7 As shown, the extrusion force of the top seat 207 on the rubber ring 208 gradually increases. At this time, the deformation amount of the rubber ring 208 gradually increases. The sealing degree of the sleeve pipe 101 and the connecting pipe 203 is adjusted by rotating the knob 212, which improves the reliability of the sealing and reduces the probability of sealing failure. Further, the sliding ring 209 is rotatably provided with a driving ring 214. The two ends of the spring one 213 are arranged on the driving ring 214 and the top seat 207, respectively. When the threaded ring 206 and the threaded groove 205 are assembled, the rubber ring 208 is attached to the threaded ring 206 by the elasticity of the spring 213. When the threaded ring 206 rotates, the rubber ring 208 and the threaded ring 206 are attached and rotate synchronously. The rubber ring 208, the driving seat 207, the spring 213, and the driving ring 214 rotate synchronously. The threaded ring 206 extrudes the rubber ring 208, causing the rubber ring 208 to deform and attach to the threaded groove 205. The threaded groove 205 is cleaned by the rotation and displacement of the rubber ring 208. The corresponding surfaces of the threaded ring 206 and the rubber ring 208 are rough, reducing the possibility of slipping when the threaded ring 206 is attached to the rubber ring 208 and rotates. This improves the friction between the corresponding surfaces of the threaded groove 205 and the rubber ring 208. In this way, the threaded groove 205 is cleaned by the rubber ring 208 during assembly of the sleeve 101 and the connecting pipe 203, preventing hard impurities from sticking to the threaded groove 205. This reduces wear between the threads during assembly of the threaded ring 206 and the threaded groove 205, improving the service life of the components. Further, the threaded ring 206 and the rubber ring 208 are adapted to each other. When the threaded ring 206 is disengaged from the threaded groove 205, the rubber ring 208 is driven to slide and disengage from the threaded groove 205 by the elasticity of the spring 213. The rubber ring 208 is detachable and can be replaced, improving the efficiency of replacing the rubber ring 208. The connecting pipe 203 is driven to rotate by the connecting mechanism 2, achieving the connection of a single sleeve 101. This reduces the assembly difficulty and improves the work efficiency. When the sleeve 101 and the connecting pipe 203 are assembled, the threaded ring 206 extrudes the rubber ring 208 and drives it to rotate. The rubber ring 208 deforms and cleans the threaded groove 205, preventing hard impurities from sticking to the threaded groove 205. This reduces wear between the threads and improves the service life of the components.

[0028] In example 2, the double-sealing surface coupling long circular thread sleeve connection buckle structure provided in example 1 is further optimized. Specifically, as shown in Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , a cleaning groove 215 is arranged on the connecting pipe 203. A blocking ring 216 is threadedly connected to the connecting pipe 203. The blocking ring 216 and the cleaning groove 215 are adapted to each other. As shown in Figure 2 and Figure 3As shown, the outer side of the connecting pipe 203 is provided with threads, and the blocking ring 216 is threadedly connected to the surface threads of the connecting pipe 203. When the blocking ring 216 is rotated, the blocking ring 216 is rotated and slides along the threads. When the blocking ring 216 unblocks the cleaning groove 215, the worker can clean the hard impurities cleaned by the rubber ring 208 through the cleaning groove 215, so as to reduce the residues of the hard impurities in the thread groove 205. Further, the connecting pipe 203 is provided with a sliding groove 217, and the driving block 218 is slidingly arranged on the sliding groove 217. The corresponding surfaces of the driving block 218 and the sliding groove 217 are provided with the second spring 219. The joint 1 is provided with a semicircular groove 220. Further, the driving block 218 is rotatably provided with a ball 221, and the ball 221 is matched with the semicircular groove 220. When the connecting pipe 203 is rotated, the thread groove 205 in the connecting pipe 203 is synchronously rotated, and the assembly of the thread ring 206 is realized through the rotation of the thread groove 205. The ball 221 on the connecting pipe 203 and the driving block 218 are synchronously rotated and displaced along the guide groove 201. When the ball 221 and the semicircular groove 220 are disengaged, the second spring 219 is compressed and pressed. The ball 221 and the driving block 218 slide along the sliding groove 217. When the ball 221 and the semicircular groove 220 are engaged, the ball 221 impacts the semicircular groove 220, so that the connecting pipe 203 vibrates. In turn, when the connecting pipe 203 and the sleeve 101 are assembled, the engagement of the thread ring 206 and the thread groove 205 is promoted through vibration, the jamming during the engagement of the threads is reduced, the assembly efficiency is improved, and the connecting pipe 203 is positioned on the joint 1 through the engagement of the ball 221 and the semicircular groove 220. When the connecting pipe 203, the joint 1 and the sleeve 101 are assembled, as shown, Figure 1 As shown, the joint 1 can be freely rotated, the angle of the joint 1 is adjusted according to the surrounding working conditions, and the interference between the joint 1 and the surrounding objects is avoided. When the connecting mechanism 2 is used for the threaded assembly of the connecting pipe 203 and the sleeve 101, the vibration of the connecting pipe 203 is generated, the gap between the threads is eliminated, the jamming of the thread groove 205 and the thread ring 206 during the engagement of the threads is reduced through vibration, and the assembly efficiency is improved.

[0029] The use process of the double-sealing-surface coupling long-circular-thread sleeve connecting buckle structure is as follows: In use, when the joint 1 and the sleeve 101 need to be connected, the threaded groove 205 and the threaded ring 206 are aligned and the connecting pipe 203 is rotated, the threaded ring 206 and the connecting pipe 203 are connected by rotating the connecting pipe 203, when the threaded ring 206 rotates and displaces in the threaded groove 205, the threaded ring 206 extrudes the rubber ring 208, the rubber ring 208 deforms, the threaded groove 205 is blocked by the deformation of the rubber ring 208, the sealing between the connecting pipe 203 and the sleeve 101 is improved, the threaded ring is screwed in the threaded groove 205, and the sleeve 101 is fixed on the connecting pipe 203. Before the threaded assembly of the sleeve 101 and the connecting pipe 203, the rubber ring 208 is attached to the threaded ring 206 by the elasticity of the spring 213, when the threaded ring 206 rotates, the rubber ring 208 and the threaded ring 206 are attached and rotate synchronously, the rubber ring 208, the driving seat 207, the spring 213 and the driving ring 214 rotate synchronously, the threaded ring 206 extrudes the rubber ring 208, the rubber ring 208 deforms and attaches to the threaded groove 205, the threaded groove 205 is cleaned by the rotation and displacement of the rubber ring 208, the corresponding surfaces of the threaded ring 206 and the rubber ring 208 are rough, which reduces the slipping of the threaded ring 206 when it is attached to the rubber ring 208 and rotates. In this way, the threaded groove 205 is cleaned by the rubber ring 208 during the assembly of the sleeve 101 and the connecting pipe 203, the connecting pipe 203 rotates and drives the ball 221 and the driving block 218 to rotate and displace along the guide groove 201 synchronously, when the ball 221 and the semicircular groove 220 are disengaged, the spring 219 is extruded and compressed, the ball 221 and the driving block 218 slide along the sliding groove 217, when the ball 221 and the semicircular groove 220 are engaged, the ball 221 hits the semicircular groove 220, causing the connecting pipe 203 to vibrate, and then the sleeve 101 and the connecting pipe 203 are rotated and assembled, the engagement of the threaded ring 206 and the threaded groove 205 is promoted by vibration, reducing the jamming during threaded engagement. By rotating the knob 212, the knob 212 rotates and drives the screw rod 211 to rotate, the screw rod 211 rotates and drives the sliding ring 209 to slide along the fixed column 210, at this time the spring 213 is extruded and compressed by the driving seat 207 and the sliding ring 209, at this time the extrusion force of the driving seat 207 on the rubber ring 208 gradually increases, at this time the deformation amount of the rubber ring 208 gradually increases, the sealing degree of the sleeve 101 and the connecting pipe 203 is adjusted by rotating the knob 212, and the reliability of the sealing is improved.

[0030] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Obviously, the above-described embodiments are only a part of the embodiments of the present application, and are not all the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent substitutions for part of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A double-sealing-surface coupled elongated threaded sleeve connection buckle structure, comprising a connector (1) and sleeves (101) respectively disposed on both sides of the connector (1), 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 seat (207) provided on the threaded groove (205), and a rubber ring (208) provided on the top seat (207).

2. The double-sealing-surface coupled long oval threaded sleeve 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. The double-sealing-surface coupled long oval threaded sleeve 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. The double-sealing-surface coupled elongated threaded sleeve connection buckle 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. The double-sealing-surface coupled elongated threaded sleeve connection buckle structure according to claim 4, characterized in that, The threaded ring (206) and the rubber ring (208) are compatible.

6. The double-sealing-surface coupled elongated threaded sleeve connection buckle 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.

7. The double-sealing-surface coupled elongated threaded sleeve connection buckle structure according to claim 6, characterized in that, The connecting pipe (203) is provided with a sliding groove (217), 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).

8. The double-sealing-surface coupled long oval threaded sleeve connection buckle structure according to claim 7, characterized in that, The drive block (218) is rotatably provided with a ball (221), which is adapted to the semi-circular groove (220).

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