Conduit butt joint device and conduit butt joint method

Abstract

The invention discloses a conduit butt joint device and a conduit butt joint method.The conduit butt joint device is used for butt joint of a first conduit and a second conduit, the conduit butt joint device comprises a double-end connector, a mounting frame and a hoisting frame, the double-end connector comprises an insertion through channel with a first axis, and the insertion through channel is provided with a second axis; the insertion through channel comprises a first end opening and a second end opening, and the first end opening and the second end opening are used for being in butt joint with a first guide pipe and a second guide pipe respectively; the mounting frame comprises a base, a first positioning device arranged on one side of the base, and a first propelling device arranged on the other side of the base and used for fixing the double-end connector; the hoisting frame is detachably connected to the mounting frame, and the hoisting frame comprises a second positioning device matched with the first positioning device and used for positioning the hoisting frame on the mounting frame; the hoisting frame comprises a second propelling device, and the double-end connector comprises a first connecting piece and a second connecting piece which are used for being matched with the first propelling device and the second propelling device.

Description

Technical Field

[0001] The invention belongs to the field of underwater construction equipment, and in particular relates to a catheter docking device and a catheter docking method. Background Art

[0002] With the development of marine technology, the role of underwater conduits in marine engineering has become increasingly important. Underwater conduits are widely used in fields such as fluid transportation. During the production or installation of conduits, the docking operation between two conduits is indispensable. For convenience, auxiliary docking devices are often installed at the required locations to support the conduit ends, thereby achieving the effect of assisting docking. However, the devices used for conduit docking generally require manual movement, which is time-consuming and labor-intensive, and in turn increases operation time. In addition, due to the different diameters of the conduits, two sets of mounting frames are usually required for docking. These two mounting frames cannot be in place at the same time and need to be operated alternately, which makes the actuator more complex and reduces the stability of underwater operations.

[0003] Therefore, it is urgent to design a catheter docking device to solve the above-mentioned problems. Summary of the Invention

[0004] One object of the present invention is to provide a catheter docking device that reduces operation time through a two-end installation mode; Another object of the present invention is to provide a catheter docking device that reduces manufacturing costs and increases system reliability by simplifying the actuator.

[0005] To achieve the above objectives, the specific technical solutions of a catheter docking device and a catheter docking method of the present invention are as follows: A catheter docking device for docking a first catheter and a second catheter, comprising: A double-ended connector, the double-ended connector comprising a plug-in through-channel having a first axis, the plug-in through-channel comprising a first end opening and a second end opening, one of the first end opening and the second end opening being used for docking with the first conduit, and the other end opening being used for docking with the second conduit; A mounting frame, the mounting frame comprising a base, a first positioning device provided on one side of the base, and a first propulsion device provided on the other side of the base for fixing the double-headed connector; a hanging frame, the hanging frame being detachably connected to the mounting frame, the hanging frame comprising a second positioning device cooperating with the first positioning device for positioning the hanging frame on the mounting frame; The hoisting frame includes a second propulsion device, and the double-headed connector includes a first connecting member and a second connecting member for cooperating with the first propulsion device and the second propulsion device; the double-headed connector is provided with a clamping module of the same structure on both sides of the plug-in channel, which is used to fix the first conduit and the second conduit after they are inserted into the double-headed connector; The first propulsion device of the mounting frame can cooperate with the first connecting piece of the double-headed connector, and the mounting frame can drive the double-headed connector to move along the second axis. The second conduit is inserted into the plug-in through channel through the second end opening, so that the second conduit is docked with the first conduit and is sealed and fixed by the clamping module.

[0006] Furthermore, the first positioning device is configured as a guide cylinder, the second positioning device is configured as a plug-in slot, and the hanging frame is installed on the guide cylinder of the installation frame through the plug-in slot.

[0007] Furthermore, the first propulsion device and the second propulsion device are both symmetrically arranged relative to the first axis to clamp the double-headed connector.

[0008] Furthermore, the first connecting member and the second connecting member are both configured as docking blocks, the first propulsion device and the second propulsion device are both configured as propulsion cylinders, the docking block is used to dock with the propulsion cylinder, one of the docking block and the propulsion cylinder is provided with a protrusion, and the other is provided with a groove, and the docking block and the propulsion cylinder are plugged into and fitted with the protrusion and the groove.

[0009] Furthermore, the hanging frame is provided with an avoidance hole, and the avoidance hole can pass straight through the interior of the double-headed connector, so that the first conduit and the second conduit enter the double-headed connector through the avoidance hole.

[0010] Furthermore, the double-headed connector also includes a guide piece, which is circumferentially arranged outside the pipe opening of the through channel, and the width of the guide piece gradually decreases along the middle position of the double-headed connector toward the pipe opening of the through channel.

[0011] Furthermore, the double-headed connector also includes a sealing module, which is arranged in the middle position of the double-headed connector. A pressure chamber is provided on the sealing module, and a pressure measuring channel is also provided in the middle position of the double-headed connector for detecting the airtightness of the sealing module.

[0012] Furthermore, the mounting frame further includes a sliding assembly, and the first propulsion device is disposed on the sliding assembly, so that the first propulsion device drives the double-headed connector to move along the first axial direction.

[0013] Furthermore, the sliding assembly includes a scale line and a sliding part that can move relative to the scale line, the first propulsion device is arranged on the sliding part, the scale line is arranged on the periphery of the mounting frame, and a pointer is provided on the sliding part, the pointer points to the scale line and is located above the scale line.

[0014] A catheter docking method, the above-mentioned catheter docking device further includes the following steps: S1, placing the installation frame in place; S2. Clamping the double-ended connector using the second propulsion device; S3, inserting the first conduit into the hanging frame and the double-ended connector in sequence, and using the first positioning device and the second positioning device to connect the hanging frame and the installation frame; S4, the first propulsion device feeds and clamps the outer wall of the double-ended connector; S5, retracting the second propulsion device to separate the hoisting frame and the double-headed connector from each other; S6. The installation frame drives the double-headed connector to approach the second conduit to complete the docking of the conduits.

[0015] The catheter docking device of the present invention has the following advantages: 1. The clamping modules at both ends are used to achieve axial compression of the catheter, preventing the catheter from slipping during docking, improving sealing and docking accuracy, and reducing operation time.

[0016] 2. The installation frame and the lifting frame are detachably connected to adapt to pipes of different diameters, reducing the time cost of replacing the frame; the first propulsion device and the second propulsion device can fix / release the double-headed connector through relative movement, making the operation more efficient.

[0017] 3. The through-channel design simplifies the catheter insertion path and reduces the difficulty of underwater operation. The installation frame directly drives the movement of the double-headed connector, replacing traditional manual adjustment. It is especially suitable for complex underwater environments, which not only reduces manufacturing costs but also increases system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the catheter docking device of the present invention; Figure 2 is a side view of the catheter docking device of the present invention; Figure 3 is a top view of the catheter docking device of the present invention; Figure 4 It is a structural schematic diagram of the double-headed connector of the present invention; Figure 5 is a cross-sectional view of a double-ended connector of the present invention; Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0019] Description of the marks in the figure: 1. Double-head connector; 11. Connector body; 111. Protrusion; 112. Guide tube; 1121. Guide plate; 113. Docking tube; 114. Intermediate tube; 12. Sealing module; 121. Second driving member; 122. Sealing ring; 123. Sealing pressure ring; 1231. Pressure chamber; 1232. Pressure measuring channel; 13. Clamping module; 131. First driving member; 132. Clamping member; 1321. First inclined plane; 1322. Second inclined plane; 14. Docking block; 2. Mounting frame; 21. Guide cylinder; 22. Sliding assembly; 221. Scale line; 222. Sliding part; 223. Pointer; 3. Lifting frame; 31. Avoidance hole; 4. Propelling cylinder; 5. Handle DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0022] With the development of marine technology, the role of underwater conduits in marine engineering has become increasingly important. Underwater conduits are widely used in fields such as fluid transportation. During the production or installation of conduits, the docking operation between two conduits is indispensable. For convenience, auxiliary docking devices are often installed at the required locations to support the conduit ends, thereby achieving the effect of assisting docking. However, the devices used for conduit docking generally require manual movement, which is time-consuming and labor-intensive, and in turn increases operation time. In addition, the conduits differ in diameter when docking.

[0023] Existing conduit docking devices typically require two installation frames, as exemplified by Chinese utility model patent application number 202421521780.X. During installation, two installation frames are required, one for the connector and one for the flange. These two frames cannot be installed simultaneously and must be operated alternately. Furthermore, the two frames have different structural forms, increasing maintenance risks and costs. Furthermore, existing solutions require on-site flange welding and flaw detection, which often requires waiting for the welded parts to cool after heat treatment, significantly increasing the time required. Double-ended connectors, on the other hand, utilize preformed pipes for installation, eliminating the need for welded flanges and reducing installation time.

[0024] Please refer to the attached Figure 1 To the attached Figure 6 The present invention describes a catheter docking device and a catheter docking method.

[0025] In order to solve the above problems, this embodiment provides a catheter docking device. Figure 1 FIG is a schematic structural diagram of the catheter docking device of this embodiment; Figure 1 As shown, the catheter docking device is used to dock a first catheter and a second catheter, and the catheter docking device includes a double-headed connector 1, a mounting frame 2 and a hanging frame 3, wherein the double-headed connector 1 includes a plug-in through-channel having a first axis, the plug-in through-channel includes a first end opening and a second end opening, one of the first end opening and the second end opening is used to dock the first catheter, and the other is used to dock the second catheter; the mounting frame 2 includes a base, a first positioning device provided on one side of the base, and a first propulsion device provided on the other side of the base for fixing the double-headed connector 1; the hanging frame 3 is detachably connected to the mounting frame 2, and the hanging frame 3 includes a second positioning device that cooperates with the first positioning device for The lifting frame 3 is positioned on the mounting frame 2; the lifting frame 3 includes a second propulsion device, and the double-headed connector 1 includes a first connecting piece and a second connecting piece for cooperating with the first propulsion device and the second propulsion device; the double-headed connector 1 is provided with a clamping module 13 of the same structure on both sides of the plug-in channel, which is used to fix the first conduit and the second conduit after they are inserted into the double-headed connector 1; the first propulsion device of the mounting frame 2 can cooperate with the first connecting piece of the double-headed connector 1, and the mounting frame 2 can drive the double-headed connector 1 to move along the second axis, and the second conduit is inserted into the plug-in through channel through the second end opening, so that the second conduit is docked with the first conduit and is sealed and fixed by the second clamping module 13.

[0026] The catheter docking device has the following advantages: 1. The clamping modules 13 provided at both ends realize axial compression of the catheter, thereby preventing the catheter from slipping during docking, improving the sealing and docking accuracy, and reducing the operation time. 2. The installation frame 2 and the lifting frame 3 are detachably connected to adapt to catheters of different diameters, reducing the time cost of replacing the frame; the first propulsion device and the second propulsion device can fix / release the double-headed connector 1 through relative movement, making the operation more efficient. 3. The through-channel design simplifies the catheter insertion path, reduces the difficulty of underwater operation, and the installation frame 2 directly drives the double-headed connector 1 to move, replacing traditional manual adjustment, which is particularly suitable for complex underwater environments. It not only reduces manufacturing costs, but also increases the reliability of the system.

[0027] Furthermore, the first propulsion device and the second propulsion device are both symmetrically arranged relative to the first axis to clamp the double-headed connector 1 .

[0028] It is understandable that the first propulsion device and the second propulsion device provide precise installation positioning for the hoisting frame 3, avoiding misalignment during frame docking, improving assembly efficiency, and reducing the risk of docking failure caused by frame shaking during underwater operations.

[0029] Furthermore, the first propulsion device and the second propulsion device are both symmetrically arranged relative to the first axis to clamp the double-headed connector 1. This has the advantage of forming a symmetrical clamping force distribution, ensuring that the double-headed connector 1 is subjected to balanced force and avoiding unilateral extrusion deformation.

[0030] Furthermore, the first positioning device is configured as a guide cylinder 21 , and the second positioning device is configured as a plug-in slot, and the hanging frame 3 is installed on the guide cylinder 21 of the mounting frame 2 through the plug-in slot.

[0031] Figure 2 is a side view of the catheter docking device of this embodiment; Optionally, in this embodiment, if Figure 1 and Figure 2 As shown, there are two guide cylinders 21, which are respectively arranged at the two ends of the mounting frame 2, and the guide cylinders 21 are designed to be one long and one short. When the staff installs the mounting frame 2 and the hanging frame 3, they first dock the hanging frame 3 with the longer guide cylinder 21, and then adjust the angle and dock the hanging frame 3 with the shorter guide cylinder 21, thereby completing the connection between the mounting frame 2 and the hanging frame 3.

[0032] Specifically, such as Figure 1 As shown, the mounting frame 2 further includes a handle 5 to facilitate movement by workers.

[0033] Further, such as Figure 1As shown, the first connecting member and the second connecting member are both configured as a docking block 14, the first propulsion device and the second propulsion device are both configured as a propulsion cylinder 4, the docking block 14 is used to dock with the propulsion cylinder 4, one of the docking block 14 and the propulsion cylinder 4 is provided with a protrusion 111, and the other is provided with a groove, and the docking block 14 and the propulsion cylinder 4 are plugged in and matched through the protrusion 111 and the groove.

[0034] It can be understood that the mechanical interlocking structure enhances the connection stability between the propulsion tube 4 and the double-headed connector 1, preventing loosening caused by underwater water flow impact. In addition, the protrusion 111 and the groove plug-in design realizes rapid positioning and reduces manual adjustment time.

[0035] Further, such as Figure 1 and Figure 2 As shown, the hanging frame 3 is provided with an escape hole 31, which can be linearly extended through the interior of the double-ended connector 1, so that the first and second conduits can enter the double-ended connector 1 through the escape hole 31. The escape hole 31 can be linearly extended through the interior of the double-ended connector 1, providing an unobstructed passage for the conduits to be inserted, preventing the conduits from bending or getting stuck, and reducing friction loss between the conduits and the inner wall of the double-ended connector 1.

[0036] Further, Figure 3 FIG is a top view of the catheter docking device of this embodiment; Figure 3 As shown, the double-headed connector 1 further includes a guide piece 1121, which is circumferentially arranged outside the pipe opening of the through channel. Along the middle position of the double-headed connector 1, the width of the guide piece 1121 gradually decreases toward the pipe opening of the through channel.

[0037] It is understandable that the gradient width design smoothly guides the insertion of the catheter and reduces installation resistance. It avoids hard contact between the edge of the catheter and the connector, protects the catheter surface, and the circumferential distribution design adapts to the insertion requirements of the catheter at different angles. In addition, in this embodiment, the guide piece 1121 is configured as a tapered structure to guide the catheter to be accurately inserted into the through-channel, which is particularly suitable for the plug-in and fit of the hose. On the other hand, the tapered guide piece 1121 can be well adapted to the avoidance hole 31, making it easier for the catheter to be inserted into the double-headed connector 1 during the plug-in process.

[0038] Figure 4 Schematic diagram of the structure of the double-headed connector of this embodiment; Figure 5 FIG. 4 is a cross-sectional view of the double-ended connector of this embodiment.

[0039] Specifically, such as Figure 4 and Figure 5As shown, the double-headed connector 1 is used for docking catheters. The double-headed connector 1 includes a connector body 11. A sealing module 12 and a clamping module 13 are provided in the connector body 11. The sealing module 12 is provided in the middle position of the connector body 11 for sealing the catheter connection after docking. The clamping module 13 is provided at both ends of the connector body 11. The clamping module 13 includes a first driving member 131 and a clamping member 132. The first driving member 131 abuts against the clamping member 132, and the abutting position of the first driving member 131 and the clamping member 132 is provided with an inclined surface. The first driving member 131 and the clamping member 132 can move relative to each other so that the clamping member 132 is clamped on the catheter.

[0040] Specifically, the connector body 11 includes a docking tube 113 and an intermediate tube 114 that are interconnected. The two conduits are docked in the docking tube 113. The sealing module 12 is arranged in the intermediate tube 114, and the inner ring of the docking tube 113 is provided with the above-mentioned boss. The sealing ring 122 of the sealing module 12 abuts against the boss. The intermediate tube 114 is located between the guide tube 112 and the docking tube 113, and is provided with a pressure measuring channel 1232 for completing the pressure relief test.

[0041] Further, such as Figure 5 As shown, the clamping module 13 includes a first driving member 131 and a clamping member 132. The first driving member 131 abuts against the clamping member 132, and the abutting position of the first driving member 131 and the clamping member 132 is provided with an inclined surface. The first driving member 131 and the clamping member 132 can move relative to each other so that the clamping member 132 is clamped on the catheter.

[0042] Optionally, the clamping member 132 includes a first inclined surface 1321 and a second inclined surface 1322, the first inclined surface 1321 and the second inclined surface 1322 intersect, the first inclined surface 1321 abuts against the first driving member 131, and the second inclined surface 1322 abuts against the guide tube 112, and the first driving member 131 can move closer to or away from the guide tube 112 so that the clamping member 132 clamps or loosens the catheter.

[0043] It is understood that the double-bevel design converts the axial force of the driver into a radial clamping force of the clamping member 132, thereby improving mechanical efficiency. The guide member ensures the linear movement of the clamping member 132, thereby avoiding local stress concentration caused by deflection.

[0044] Further, such as Figure 5 As shown, the double-headed connector 1 also includes a sealing module 12, which is arranged in the middle position of the double-headed connector 1. A pressure chamber 1231 is provided on the sealing module 12, and a pressure measuring channel 1232 is also provided in the middle position of the double-headed connector 1 for detecting the airtightness of the sealing module 12.

[0045] Since the catheter is usually in the middle position of the double-headed connector 1 during docking, setting the sealing module 12 in the middle position of the double-headed connector 1 can better ensure the airtightness of the docking. In addition, the middle sealing module 12 is combined with the pressure chamber 1231 design, and the sealing is detected in real time through the pressure measuring channel 1232 to prevent fluid leakage, thereby further improving the reliability of long-term underwater use.

[0046] The double-head connector 1 sets the sealing module 12 in the center so that the sealing module 12 directly acts on the docking point of the catheter, avoiding leakage problems after docking; provides a progressive clamping force by setting a bevel-driven clamping member 132, which is softer than thread locking, reduces the risk of catheter deformation, and is more adaptable to catheter docking in corrosive environments; and avoids the locking force from directly acting on the sealing part by setting the sealing module 12 in the center and the clamping modules 13 at both ends, thereby reducing the risk of catheter deformation.

[0047] Furthermore, the sealing module 12 includes a second driving member 121 and multiple sealing rings 122. A boss is provided in the middle position of the connector body 11. The multiple sealing rings 122 are respectively abutted against the boss and the second driving member 121. The second driving member 121 is used to bring the multiple sealing rings 122 close to each other to clamp the catheter connection after sealing.

[0048] It is understood that the multiple sealing rings 122 work together to form a redundant seal, which can maintain the seal even if a single sealing ring 122 fails. The second driving member 121 can adjust the pressure of the sealing ring 122 to adapt to different pipe diameters or compensation requirements after wear.

[0049] Figure 6 for Figure 5 A partial enlarged view of point A in the middle; Further, if Figure 5 and Figure 6 As shown, one of the multiple sealing rings 122 is set as a sealing pressure ring 123, and an annular pressure chamber 1231 is set on the outer edge of the sealing pressure ring 123. A pressure measuring channel 1232 is set in the middle of the connector body 11. The pressure measuring channel 1232 is connected to the pressure chamber 1231 and is used to detect the airtightness of the sealing module 12.

[0050] It should be noted that since the catheter is usually in the middle position of the double-headed connector 1 when docking, setting the sealing module 12 in the middle position of the double-headed connector 1 can better ensure the airtightness of the docking. In addition, the middle sealing module 12 is combined with the annular pressure chamber 1231 design, and the sealing is detected in real time through the pressure measuring channel 1232 to prevent fluid leakage, thereby further improving the reliability of long-term underwater use.

[0051] Furthermore, the mounting frame 2 further includes a sliding assembly 22 , and the first propulsion device is disposed on the sliding assembly 22 , so that the first propulsion device drives the double-headed connector 1 to move along the first axial direction.

[0052] Specifically, the sliding assembly 22 includes a scale line 221 and a sliding portion 222 that can move relative to the scale line 221. The first propulsion device is arranged on the sliding portion 222. The scale line 221 is arranged on the periphery of the mounting frame 2. A pointer 223 is provided on the sliding portion 222. The pointer 223 points to the scale line 221 and is located above the scale line 221.

[0053] It is understood that the sliding assembly 22 enables micro-adjustment of the propulsion cylinder 4, and cooperates with the scale line 221 and the pointer 223 to quantify the movement distance, thereby improving the docking accuracy (such as millimeter-level adjustment). Visual operation reduces dependence on underwater monitoring equipment.

[0054] This embodiment also provides a catheter docking method, which uses the above-mentioned catheter docking device and further includes the following steps: S1, put the installation frame 2 into place; S2, using the second propulsion device to clamp the double-headed connector 1; S3, inserting the first conduit into the hanging frame 3 and the double-headed connector 1 in sequence, and using the first positioning device and the second positioning device to connect the hanging frame 3 and the installation frame 2; S4, the first propulsion device feeds and clamps the outer wall of the double-ended connector 1; S5, the second propulsion device retracts to separate the hoisting frame 3 and the double-headed connector 1 from each other; S6. The mounting frame 2 drives the double-headed connector 1 to approach the second conduit, completing the docking of the conduits.

[0055] It can be understood that the above-mentioned catheter docking method applies the catheter docking device of this embodiment, which overcomes the additional inspection time required for on-site welding of flanges and flaw detection welding heat treatment in the prior art. On the other hand, it reduces the installation frame 2, and realizes the simultaneous installation operation of both ends through the double-head connector 1, thereby reducing the underwater operation time; the design of the lifting frame 3 and the installation frame 2 realizes the simplification of the actuator, deletes the unnecessary control system in the prior art, reduces the manufacturing cost, increases the system reliability, reduces manual intervention, is compatible with catheters of different diameters, and improves the adaptability of catheter docking.

[0056] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A catheter docking device for docking a first catheter and a second catheter, characterized in that: include: A double-ended connector, the double-ended connector comprising a plug-in through-channel having a first axis, the plug-in through-channel comprising a first end opening and a second end opening, one of the first end opening and the second end opening being used for docking with the first conduit, and the other end opening being used for docking with the second conduit; A mounting frame, the mounting frame comprising a base, a first positioning device provided on one side of the base, and a first propulsion device provided on the other side of the base for fixing the double-headed connector; a hanging frame, the hanging frame being detachably connected to the mounting frame, the hanging frame comprising a second positioning device cooperating with the first positioning device for positioning the hanging frame on the mounting frame; The hoisting frame includes a second propulsion device, and the double-headed connector includes a first connecting member and a second connecting member for cooperating with the first propulsion device and the second propulsion device; the double-headed connector is provided with a clamping module of the same structure on both sides of the plug-in channel, which is used to fix the first conduit and the second conduit after they are inserted into the double-headed connector; The first propulsion device of the mounting frame can cooperate with the first connecting piece of the double-headed connector, and the mounting frame can drive the double-headed connector to move along the second axis. The second conduit is inserted into the plug-in through channel through the second end opening, so that the second conduit is docked with the first conduit and is sealed and fixed by the clamping module.

2. The catheter docking device according to claim 1, characterized in that: The first positioning device is configured as a guide cylinder, the second positioning device is configured as a plug-in slot, and the hanging frame is installed on the guide cylinder of the installation frame through the plug-in slot.

3. The catheter docking device according to claim 2, characterized in that: The first propulsion device and the second propulsion device are both symmetrically arranged relative to the first axis to clamp the double-headed connector.

4. The catheter docking device according to claim 3, characterized in that: The first connecting member and the second connecting member are both configured as docking blocks, the first propulsion device and the second propulsion device are both configured as propulsion cylinders, the docking block is used to dock with the propulsion cylinder, one of the docking block and the propulsion cylinder is provided with a protrusion, and the other is provided with a groove, the docking block and the propulsion cylinder are plugged into and fitted with the protrusion and the groove.

5. The catheter docking device according to claim 1, wherein: The hanging frame is provided with an avoidance hole, and the avoidance hole can pass straight through the interior of the double-headed connector, so that the first conduit and the second conduit enter the double-headed connector through the avoidance hole.

6. The catheter docking device according to claim 5, characterized in that: The double-ended connector further includes a guide piece, which is circumferentially arranged outside the pipe opening of the through channel. The width of the guide piece gradually decreases along the middle position of the double-ended connector toward the pipe opening of the through channel.

7. The catheter docking device according to any one of claims 1, 5 or 6, characterized in that: The double-headed connector also includes a sealing module, which is arranged in the middle position of the double-headed connector. A pressure chamber is provided on the sealing module. A pressure measuring channel is also provided in the middle position of the double-headed connector for detecting the airtightness of the sealing module.

8. The catheter docking device according to claim 1, wherein: The mounting frame further includes a sliding assembly, and the first propulsion device is disposed on the sliding assembly so that the first propulsion device drives the double-headed connector to move along the first axial direction.

9. The catheter docking device according to claim 8, characterized in that: The sliding assembly includes a scale line and a sliding part that can move relative to the scale line. The first propulsion device is arranged on the sliding part. The scale line is arranged on the periphery of the mounting frame. A pointer is arranged on the sliding part. The pointer points to the scale line and is located above the scale line.

10. A catheter docking method, characterized in that: The catheter docking device according to any one of claims 1 to 9 is used, further comprising the following steps: S1, placing the installation frame in place; S2. Clamping the double-ended connector using the second propulsion device; S3, inserting the first conduit into the hanging frame and the double-ended connector in sequence, and using the first positioning device and the second positioning device to connect the hanging frame and the installation frame; S4, the first propulsion device feeds and clamps the outer wall of the double-ended connector; S5, retracting the second propulsion device to separate the hoisting frame and the double-headed connector from each other; S6. The installation frame drives the double-headed connector to approach the second conduit to complete the docking of the conduits.

Images