High-pressure resistant anticorrosion instrument pipe joint mechanism

Abstract

The application provides a high-pressure-resistant anti-corrosion instrument pipe joint mechanism, belonging to the technical field of pipe assembly, which comprises a valve body, an upper end cover arranged on the top of the valve body, a handle arranged on the valve body, a pressure gauge arranged on the valve body, and a pipeline one arranged on the two sides of the valve body. The pipeline one is connected with an outer pipeline. The head of the outer pipeline and the pipeline one close to each other is provided with a flange. Two flanges are connected through a connecting piece. The flange is provided with a connecting hole matched with the connecting piece. The connecting piece passes through the connecting hole. The application solves the problem that the thread cap on some connecting pieces can be self-constrained on the screw rod of the screw, but there are also some problems, that is, the thickness of the connected flanges is inconsistent, which makes the position of the thread cap on the screw rod different, so that the effect of the connecting piece is poor, and the connecting piece cannot match the connection of the flanges between various pipe fittings.

Description

Technical Field

[0001] This invention belongs to the field of pipe fitting assembly technology, specifically relating to a high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism. Background Technology

[0002] The connection between high-pressure and corrosion-resistant instrument pipe fittings is mainly achieved by using flanges and connecting parts to securely connect adjacent flanges, such as screws.

[0003] Current pipe fittings generate vibrations when transporting objects, which can lead to instability in the connections. Over time, this can result in loose connections and leaks. While some current connectors have nuts that self-constrain on the screw thread, there are still issues. For example, the varying thicknesses of the flanges can cause the nuts to be positioned differently on the screw thread, thus reducing the effectiveness of the connector and making it unsuitable for connecting flanges between various pipe fittings. Therefore, a high-pressure, corrosion-resistant instrument pipe fitting connection mechanism is proposed. Summary of the Invention

[0004] This invention provides a high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism. Its purpose is to solve the problem that while the threaded caps on some connecting parts can be self-constrained on the screw thread rod, there are also some problems. That is, the flanges being connected have different thicknesses, which will cause the threaded caps to be in different positions on the screw thread rod. This will result in a deterioration of the connection effect and cause the connection part to be unable to match the flange connection between various pipe fittings.

[0005] This invention provides a high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism, including a valve body, an upper end cap on the top of the valve body, a handle on the valve body, a pressure gauge on the valve body, a first pipe on both sides of the valve body, the first pipe being connected to an outer pipe, flanges being installed at the ends of the outer pipe and the first pipe that are close to each other, the two flanges being connected by a connecting member, the flanges having pre-drilled connection holes that match the connecting member, and the connecting member passing through the connection holes;

[0006] The connecting component includes a connecting screw and a threaded connector that is threaded to the connecting screw; a locking part is movably installed in the guide cavity reserved in the connecting screw, the locking part and the threaded connector are in contact, and the threaded connector moves together with the locking part along the length of the connecting screw.

[0007] The locking part includes a displacement platform, inside which a through connecting strip is installed. One end of the connecting strip is fixedly connected to the locking platform, and the other end of the connecting strip is fixedly connected to a support plate. The other end of the support plate is mirror-fixed to a top pressure rod. One end of the support plate is fixedly connected to a spiral beryllium copper wire II. The spiral beryllium copper wire II is installed on the periphery of the connecting strip and fixedly connected to the displacement platform.

[0008] The outer thread cap has a circular groove, and stop bars are fixedly connected at equal intervals inside the circular groove. After the thread connector is screwed to apply the required external force, the locking platform engages with any of the stop bars, thus restricting the rotation of the thread connector.

[0009] Furthermore, a connecting plate is fixedly connected to one end of the displacement table, a pressing round bar is fixedly connected to one end of the connecting plate, and the pressing round bar and the threaded connector are in contact with one end of the threaded connector. A screw head is fixedly connected to the other end of the connecting plate, and an intermediate rod is installed in the screw head.

[0010] Furthermore, one end of the screw head is fixedly connected to a spiral beryllium copper wire, the other end of the spiral beryllium copper wire further away from the screw head is fixedly connected to a recovery part, one end of the recovery part is fixedly connected to an intermediate rod, and the intermediate rod is fixedly connected to the screw head through a connecting screw.

[0011] Furthermore, the restoration part includes a stop bar, which is fixedly connected to an intermediate rod. One end of the stop bar is screwed to a rotating rod, and the end of the rotating rod further away from the stop bar is fixedly connected to a connecting screw. A spiral beryllium copper wire is installed around the rotating rod, and both ends of the spiral beryllium copper wire are fixedly connected to the connecting screw and the stop bar, respectively.

[0012] Furthermore, the threaded connector includes an outer threaded cap, inside which a restraining part is movably connected. The restraining part and the threaded connector are displaced together and compressed into the threaded connector, thereby allowing the locking platform to be locked onto a certain stop bar and achieving the purpose of self-restraint of the threaded connector.

[0013] Furthermore, the outer threaded cap has a pre-drilled hole for threading the connecting screw, and the hole and the pre-drilled thread of the connecting screw are threaded together.

[0014] Furthermore, the constraint part includes a constraint bar, one end of which is mirror-fixed to a connecting rod, and the connecting rod is fixed to a top pressure plate through an outer thread cap at one end. A friction table is fixed to one end of the top pressure plate at equal intervals on its wall surface.

[0015] Furthermore, the wall surface of the constraint circular strip is reserved with displacement cavities at equal intervals, the displacement cavities are matched with the stop bar, and one end of the outer thread cap is reserved with a second circular groove, the second circular groove is matched with the top pressure plate.

[0016] Furthermore, a spiral beryllium copper wire is installed at one end of the connecting rod, one end of which is fixed to the constraint bar, and the other end of which is fixed to the outer wire cap.

[0017] Furthermore, the connecting screw has a mirror-image reserved stop cavity, which is installed in the wall formed by the reserved guide cavity of the connecting screw. The stop cavity is movably connected to the displacement table, which is fixedly connected to the displacement table.

[0018] The beneficial effects of this invention are as follows:

[0019] During the threaded connection and displacement of the threaded connector and connecting screw, the threaded connector moves along the length of the connecting screw and contacts the locking part. The locking part is pulled to move in the specified direction along the guide cavity reserved in the connecting screw, achieving the purpose of displacement of the locking part and the threaded connector together. After the constraint part in the threaded connector bears the external force and contacts the outer threaded cap, the locking part and the constraint part separate and lock with a certain stop bar, so that the threaded connector achieves the purpose of self-locking on the connecting screw. This can match the constraint locking of various distances, that is, it can adapt to flanges of various widths, making the application of the connecting screw more universal. During the locking of various distances, after the outer threaded cap is screwed to a specific position to generate a specific external force, the locking platform on the locking part can actively lock onto the stop bar, achieving the purpose of self-locking of the outer threaded cap, avoiding the phenomenon of loose connection of the outer threaded cap, ensuring the stability of the connection between the outer threaded cap and the connecting screw, thereby ensuring the stability of the connection and the flange connection between pipe fittings.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the connecting screw structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the connecting screw structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the intermediate rod structure according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a spiral beryllium copper wire according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the connecting part structure according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the threaded connector structure according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the constraint part structure according to an embodiment of the present invention;

[0031] Figure 10 for Figure 7 Enlarged schematic diagram of the structure at point C;

[0032] Reference numerals: 11. Valve body; 112. Upper end cover; 113. Handle; 114. Pressure gauge; 115. Pipeline 1; 116. Flange; 117. External pipe; 12. Connecting screw; 122. Guide cavity; 1222. Stop cavity; 123. Spiral beryllium copper wire 1; 124. Returning part; 1242. Stop bar; 1243. Rotating rod; 1244. Spiral beryllium copper wire 4; 125. Locking part; 1252. Displacement platform; 1253. Connecting plate; 1254. Pressing bar; 1255. Tightening head; 1256. 1257. Connecting bar; 1258. Spiral beryllium copper wire II; 1259. Support plate; 1250. Top pressure bar; 12510. Variable platform; 12521. Snap-fit ​​platform; 126. Intermediate bar; 127. Tightening head; 13. Threaded joint; 132. External threaded cap; 1323. Circular groove I; 1324. Stop bar; 1325. Circular groove II; 133. Constraint part; 1332. Constraint round bar; 1333. Connecting bar; 1334. Top pressure plate; 1335. Friction platform; 1336. Displacement cavity; 1337. Spiral beryllium copper wire III. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1-10This invention provides a high-pressure resistant and corrosion-resistant instrument pipe connection mechanism, comprising a valve body 11, an upper end cap 112 mounted on the top of the valve body 11, a handle 113 mounted on the valve body 11, a pressure gauge 114 mounted on the valve body 11, pipes 115 mounted on both sides of the valve body 11, pipes 115 connected to an outer pipe 117, flanges 116 mounted at the ends of the outer pipe 117 and pipes 115 that are close to each other, the two flanges 116 being connected by a connecting member, the flanges 116 having pre-drilled connection holes that match the connecting member, the connecting member securing the two adjacent flanges through the connection holes;

[0035] The connecting component includes a connecting screw 12 and a threaded connector 13 that is threaded onto the connecting screw 12. A locking part 125 is movably installed in the guide cavity 122 reserved in the connecting screw 12. The locking part 125 and the threaded connector 13 abut against each other. The threaded connector 13 moves along the length of the connecting screw 12, pulling the locking part 125 to move together. The locking part 125 includes a displacement platform 1252. A through connecting strip 1256 is installed inside the displacement platform 1252. One end of the connecting strip 1256 is fixedly connected to the locking platform 12521, and the other end of the connecting strip 1256 is fixedly connected to the support plate 125. 8. The other end of the support plate 1258 is mirror-fixed to the top pressure rod 1259. One end of the support plate 1258 is fixed to the spiral beryllium copper wire 1257. The spiral beryllium copper wire 1257 is installed on the periphery of the connecting strip 1256 and fixed to the displacement platform 1252. The outer thread cap 132 has a circular groove 1323 installed inside. The circular groove 1323 is fixed to the stop rods 1324 at equal intervals. After the threaded connector 13 is tightened to apply the required external force, the locking platform 12521 is inserted into any one of the stop rods 1324, thus restricting the rotation of the threaded connector 13.

[0036] The connecting screw 12 has a guide cavity 122, and a locking part 125 for locking the screw connector 13 is movably connected in the guide cavity 122. During the period when the screw connector 13 and the connecting screw 12 are connected and displaced, the screw connector 13 moves along the length of the connecting screw 12 and contacts the locking part 125. The locking part 125 is pulled to move in the specified direction along the guide cavity 122 reserved in the connecting screw 12, so that the locking part 125 and the screw connector 13 move together. After the constraint part 133 in the screw connector 13 bears the external force, it contacts the outer screw cap 132, and the locking part 125 and the constraint part 133 separate and lock with a stop bar 1324. The screw connector 13 achieves the purpose of self-locking on the connecting screw 12. This can match the constraint locking of various distances, making the application of the connecting screw 12 more universal. During engagement at various distances, after the outer threaded cap 132 is screwed to a specific position to generate a specific external force, the locking platform 12521 on the locking part 125 can actively lock onto the stop bar 1324, achieving the self-locking purpose of the outer threaded cap 132. This avoids the outer threaded cap 132 from being loose or not securely connected, ensuring the stability of the connection between the outer threaded cap 132 and the connecting screw 12, thereby ensuring a secure connection.

[0037] One end of the displacement stage 1252 is fixedly connected to a connecting plate 1253, and one end of the connecting plate 1253 is fixedly connected to a pressing bar 1254, which touches one end of the pressing bar 1254 and the threaded connector 13. The other end of the connecting plate 1253 is fixedly connected to a screw head 1255, and an intermediate rod 126 is installed inside the screw head 1255. One end of the screw head 1255 is fixedly connected to a spiral beryllium copper wire 123, and the end of the spiral beryllium copper wire 123 further away from the screw head 1255 is fixedly connected to a restoring part 124. One end of the restoring part 124 is fixedly connected to the intermediate rod 126, and the intermediate rod 126 is fixedly connected to the screw head 127 through the connecting screw 12. The connecting plate 1253 fixedly connected to one end of the displacement stage 1252 is used to assemble the pressing bar 1254 and the screw head 1255, pressing... The round bar 1254 is installed on the periphery of the connecting screw 12. The pressing round bar 1254 is installed inside the connecting screw 12. The pressing round bar 1254 and the threaded connector 13 on the connecting screw 12 come into contact to pull the locking part 125 to move together. The screw head 1255 installed inside the connecting screw 12 is fixedly connected to the spiral beryllium copper wire 123. After being pressed by the bearing connector 13, the spiral beryllium copper wire 123 becomes shorter and its elastic potential energy increases. This is beneficial for the separation of the connector 13 and the connecting screw 12. The spiral beryllium copper wire 123 supports the screw head 1255 to pull the locking part 125 to move, which is beneficial for the locking part 125 to return to the initial area, making the use of the locking part 125 easier. This makes the use of the connecting screw 12 easier.

[0038] The recovery section 124 includes a stop bar 1242, which is fixedly connected to an intermediate rod 126. One end of the stop bar 1242 is screwed to a rotating rod 1243, and the end of the rotating rod 1243 further from the stop bar 1242 is fixedly connected to a connecting screw 12. A spiral beryllium copper wire 1244 is mounted around the rotating rod 1243. The spiral beryllium copper wire 1244 generates an opposite torque when the rod is rotated and deformed to recover its original shape. The two ends of the spiral beryllium copper wire 1244 are respectively fixed to the connecting screw 12 and the stop bar 1242; the stop bar 1242 in the restoring part 124 is fixed to the intermediate rod 126, the intermediate rod 126 is connected to the screw head 127 through the connecting screw 12, the intermediate rod 126 is connected to the connecting post through the connection of the connecting screw 12, the screw head 127 pulls the intermediate rod 126 to rotate, and the stop bar 124 is fixed to the screw head 127. 42 The helical beryllium copper wire 1244 bears external force, and the top pressure bar 1259 installed on the middle rod 126 and the protruding area of ​​the middle rod 126 touch and move to the other end. The top pressure bar 1259 pulls the locking platform 12521 connected to the connecting strip 1256 to move, so as to separate the locking platform 12521 from the constraint part 133. The screw head 127 after rotation is released. The middle rod 126 fixed to the screw head 127 returns to the original area due to the helical beryllium copper wire 1244, so that the protruding area of ​​the middle rod 126 and the top pressure bar 1259 are separated. The top pressure bar 1259 returns to the original position due to the helical beryllium copper wire 1257, so that the locking platform 12521 fixed to one end of the connecting strip 1256 returns to the original area, so that the locking platform 12521 is easier to operate and the locking part 125 locks the screw connector 13 is easy to use.

[0039] The threaded connector 13 includes an outer threaded cap 132, inside which a restraining part 133 is movably connected. The restraining part 133 and the threaded connector 13 move together and are compressed and accommodated inside the threaded connector 13, thus allowing the locking platform 12521 to be locked onto a certain stop bar 1324 and achieving the purpose of self-restraint of the threaded connector 13. The outer threaded cap 132 has a hole reserved for threaded connection to the connecting screw 12, and the hole and the thread reserved on the connecting screw 12 are threaded together. The restraining part 133 includes a restraining bar 1332, one end of which is mirror-fixed to the connecting rod 1333. The connecting rod 1333 is fixed to the top pressure plate 1334 through one end of the outer threaded cap 132. The friction platform 1335 is fixed to the wall of one end of the top pressure plate 1334 at equal intervals. Displacement cavities 1336 are reserved at equal intervals on the wall surface of 332. The displacement cavities 1336 are matched with the stop rod 1324. One end of the outer thread cap 132 is reserved with a circular groove 1325, which is matched with the top pressure plate 1334. A spiral beryllium copper wire 1337 is installed at one end of the connecting rod 1333. One end of the spiral beryllium copper wire 1337 is fixed to the constraint bar 1332, and the other end of the spiral beryllium copper wire 1337 is fixed to the outer thread cap 132. A stop cavity 1222 is reserved in the connecting screw 12. The stop cavity 1222 is installed in the wall surface formed by the guide cavity 122 reserved in the connecting screw 12. The stop cavity 1222 is dynamically connected to the moving platform 12510, which is fixed to the displacement platform 1252.The threaded connector 13 has a hexagonal outer threaded cap 132. The outer threaded cap 132, including the outer threaded cap 132 and the constraint part 133, has a variable connection structure. A pre-reserved circular groove 1323 in the outer threaded cap 132 has equally spaced stop bars 1324 for constraint. The constraint bar 1332 in the constraint part 133 matches the stop bar 1324. During the displacement of the outer threaded cap 132 along the connecting screw 12, the constraint part 133, after bearing external force, contacts the outer threaded cap 132. That is, the constraint bar 1332, connected to the top pressure plate 1334 via the connecting rod 1333, initially contacts the wall surface of the connected object, causing the constraint bar 1332 connected by the connecting rod 1333 to displace in a predetermined direction. The locking platform 12521 at the other end of the constraint bar 1332 cannot engage with the stop bar 1324. After the circular groove 1325 reserved on the outer thread cap 132 is matched, the constraint bar 1332 and the locking platform 12521 at the other end separate. The locking platform 12521 engages with the stop bar 1324 due to the spiral beryllium copper wire 1257. This achieves the purpose of self-locking after the threaded connector 13 is firmly connected, preventing the tightened threaded connector 13 from loosening. After the locking platform 12521 separates from the constraint part 133 due to the middle bar 126, the threaded connector 13 is in a constrained and locked state. By operating the threaded connector 13 with a tool, rotating the threaded connector 13 moves it in the direction that separates it from the connecting screw 12, allowing the constraint bar 1332 in the outer thread cap 132 to return to the initial area due to the spiral beryllium copper wire 1337. This facilitates the reuse of the threaded connector 13 and also facilitates disassembly and reassembly.

[0040] The specific implementation method is as follows: A guide cavity 122 is reserved in the connecting screw 12. A locking part 125 for locking the screw connector 13 is movably connected in the guide cavity 122. During the period when the screw connector 13 and the connecting screw 12 are connected and displaced, the screw connector 13 moves along the length of the connecting screw 12 and contacts the locking part 125. The locking part 125 is pulled to move in the specified direction along the guide cavity 122 reserved in the connecting screw 12, so that the locking part 125 and the screw connector 13 are in the same position. The purpose of this movement is to facilitate the self-locking of the threaded connector 13 after it is screwed in. The locking part 125 and the threaded connector 13 on the connecting screw 12 are displaced together. After the constraint part 133 in the threaded connector 13 bears the external force and comes into contact with the outer thread cap 132, the locking part 125 and the constraint part 133 separate and lock with a stop bar 1324. This allows the threaded connector 13 to achieve self-locking on the connecting screw 12, and is fixed at equal intervals in the pre-reserved circular groove 1322-1323. Connected to the stop bar 1324 used for constraint, the constraint bar 1332 located in the constraint part 133 matches the stop bar 1324, allowing the outer threaded nut 132 to move along the connecting screw 12. During this movement, the constraint part 133, after bearing a specific external force, contacts the outer threaded nut 132. That is, the constraint bar 1332, connected to the top pressure plate 1334 via the connecting bar 1333, initially contacts the wall surface of the connected object, causing the constraint bar 1332 connected by the connecting bar 1333 to move in a predetermined direction. As the constraint bar 1332 is displaced, the locking platform 12521, which is at the top of the other end of the constraint bar 1332, cannot engage with the stop bar 1324. After the circular groove 1325 reserved on the top pressure plate 1334 and the outer thread cap 132 is matched, the constraint bar 1332 and the locking platform 12521 at the other end of the constraint bar 1332 separate. The locking platform 12521 engages with the stop bar 1324 due to the spiral beryllium copper wire 1257. In this way, the purpose of self-locking after the threaded connector 13 is firmly connected is achieved.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism, comprising a valve body (11), characterized in that, The valve body (11) is provided with an upper end cap (112), a handle (113) is provided on the valve body (11), a pressure gauge (114) is provided on the valve body (11), and pipes (115) are provided on both sides of the valve body (11). Pipes (115) are connected to an outer pipe (117). Flanges (116) are provided at the ends of the outer pipe (117) and pipes (115) that are close to each other. The two flanges (116) are connected by a connecting member. The flanges (116) have a pre-drilled connecting hole that matches the connecting member. The connecting member passes through the connecting hole. The connecting component includes a connecting screw (12) and a threaded connector (13) connected to the connecting screw (12); a locking part (125) is movably installed in the guide cavity (122) reserved in the connecting screw (12), the locking part (125) and the threaded connector (13) are in contact, and the threaded connector (13) moves along the length of the connecting screw (12) towards the displacement pulling locking part (125) to move together; The connecting part (125) includes a displacement platform (1252), in which a through connecting strip (1256) is installed. One end of the connecting strip (1256) is fixedly connected to the locking platform (12521), and the other end of the connecting strip (1256) is fixedly connected to the support plate (1258). The other end of the support plate (1258) is mirror-fixed to the top pressure rod (1259). One end of the support plate (1258) is fixedly connected to a spiral beryllium copper wire II (1257). The spiral beryllium copper wire II (1257) is installed on the periphery of the connecting strip (1256) and fixedly connected to the displacement platform (1252). The outer thread cap (132) has a circular groove (1323) installed inside, and the circular groove (1323) has stop bars (1324) fixed at equal intervals inside. After the thread connector (13) is screwed to apply the required external force, the locking platform (12521) is locked onto any one of the stop bars (1324), thus restricting the rotation of the thread connector (13).

2. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 1, characterized in that: One end of the displacement stage (1252) is fixedly connected to a connecting plate (1253), one end of the connecting plate (1253) is fixedly connected to a pressing round bar (1254), and the pressing round bar (1254) and the threaded connector (13) touch one end. The other end of the connecting plate (1253) is fixedly connected to a screw head (1255), and an intermediate rod (126) is installed in the screw head (1255).

3. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 2, characterized in that: One end of the screw head (1255) is fixedly connected to a spiral beryllium copper wire (123), and the other end of the spiral beryllium copper wire (123) further away from the screw head (1255) is fixedly connected to a recovery part (124). One end of the recovery part (124) is fixedly connected to an intermediate rod (126), and the other end of the intermediate rod (126) is fixedly connected to the screw head (127) through a connecting screw (12).

4. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 3, characterized in that: The restoration part (124) includes a stop bar (1242), which is fixedly connected to the intermediate rod (126). One end of the stop bar (1242) is screwed to the rotating rod (1243), and the end of the rotating rod (1243) further away from the stop bar (1242) is fixedly connected to the connecting screw (12). A spiral beryllium copper wire four (1244) is installed around the rotating rod (1243), and the two ends of the spiral beryllium copper wire four (1244) are fixedly connected to the connecting screw (12) and the stop bar (1242).

5. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 4, characterized in that: The threaded connector (13) includes an outer threaded cap (132), inside which a restraint part (133) is movably connected. The restraint part (133) and the threaded connector (13) are displaced together and compressed into the threaded connector (13), so that the locking platform (12521) is locked on a certain stop bar (1324) and the threaded connector (13) achieves the purpose of self-restraint.

6. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 5, characterized in that: The outer thread cap (132) has a hole reserved inside for threading the connecting screw (12), and the hole and the reserved thread of the connecting screw (12) are connected.

7. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 6, characterized in that: The constraint part (133) includes a constraint bar (1332), one end of which is mirror-fixed to a connecting rod (1333), and the connecting rod (1333) is fixed to a top pressure plate (1334) through an outer thread cap (132). The friction table (1335) is fixed to the wall surface of the top pressure plate (1334) at equal intervals.

8. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 7, characterized in that: The wall of the constraint bar (1332) has equally spaced displacement cavities (1336), which are matched with the stop bar (1324). One end of the outer thread cap (132) has a circular groove (1325), which is matched with the top pressure plate (1334).

9. The high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 8, characterized in that: One end of the connecting rod (1333) is fitted with a spiral beryllium copper wire three (1337), one end of which is fixedly connected to the constraint round bar (1332), and the other end of which is fixedly connected to the outer wire cap (132).

10. A high-pressure resistant and corrosion-resistant instrument pipe fitting connection mechanism according to claim 9, characterized in that: The connecting screw (12) has a mirror-reserved stop cavity (1222) inside. The stop cavity (1222) is installed in the wall formed by the reserved guide cavity (122) of the connecting screw (12). The stop cavity (1222) is movably connected to the displacement stage (12510), which is fixedly connected to the displacement stage (1252).

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