A docking device and method for a pipe-like apparatus

Abstract

The application discloses a butt joint device for pipeline equipment, characterized in that the butt joint device comprises a device frame, a fork and a lifting trolley, the device frame is arranged on the fork of a forklift truck, the device frame and the fork are connected, a transmission structure is arranged on the top of the device frame, the lifting trolley is connected with the device frame through the transmission structure, support structures are arranged on the device frame, a plurality of support structures are arranged on the support rollers, and pipes are arranged on the support rollers.

Description

Technical Field

[0001] This invention relates to the field of pipeline connection, specifically to a connection device and method for pipeline equipment. Background Technology

[0002] Gas-insulated transmission line (GIL) equipment, as a new type of power transmission equipment that can replace high-voltage overhead lines, is widely used in urban utility tunnels and corridors for high-voltage and ultra-high-voltage power transmission. GIL equipment can be deployed for tens of kilometers. GIL lines are usually composed of a certain number of standard pipe sections spliced ​​together, with the standard pipe section length reaching 18 meters. The pipe sections are mostly connected by flanges and bolts. However, since this equipment is installed in narrow tunnels or utility tunnels with limited working space, large conventional machinery such as truck cranes cannot be used. The machinery specially designed by some users has problems such as complex structure, high cost, limited function, and insufficient flexibility in use.

[0003] GIL (Gas Injection Line) tunnels are mostly horizontal or slightly sloping tunnels with a capped structure. GILs are typically installed in three vertically arranged phases, fixed to the side walls of the tunnel. The interior space of the tunnel is limited, making it impossible to use large lifting equipment such as truck cranes for installation. Figure 1 , Figure 2 As shown, the current common practice is to drill holes in the top wall near the docking position of each GIL pipe section and install two fixed lifting points. The GIL pipe section is then lifted using a chain hoist and lifting ropes. The position and attitude of the pipe section are controlled manually using the traction rope. After being raised to a suitable height, the pipe section is brought close to the mounting bracket and aligned with the axis of the installed GIL flange. Then, the two docking flanges are pulled together manually, and the pipe section is lifted by rotation and fine adjustment. The bolt holes of the two flanges are aligned using positioning pins, bolts are installed and tightened, and the docked busbar pipe section is fixed on the equipment bracket. Then, the next docking installation cycle begins.

[0004] The above-mentioned operations present numerous inconveniences, specifically: the installation of each hoisting unit requires the installation of two fixed hoisting points on the top of the pipe gallery; the hoisting of pipe sections requires manual, slow, and synchronous lifting using a chain hoist; the hoisting process requires continuous manual traction to control the position and attitude of the hoisted pipe sections; flange docking is also achieved through manual traction, and during upper-level hoisting, the short length of the hoisting rope significantly increases the traction force required for flange docking and severely affects the stable docking of the equipment; since the hoisting pipe sections are lifted by binding with hoisting ropes, circumferential rotation is not possible, therefore, precise control of the bolt hole position is required when binding the ropes, and proper adjustment using locating pins and a chain hoist is necessary to achieve the alignment of the bolt holes on the docking flanges during docking.

[0005] The above method, which involves installing multiple fixed hooks on the top of the pipe rack and manually hoisting the pipes using chain hoists and ropes, utilizes the swinging nature of the ropes to manually adjust the pipe sections lifted by the chain hoists for connection and installation. However, this method has the following problems:

[0006] (1) Two fixed hooks need to be installed on the top of the pipe gallery at each hoisting position, which takes a long time to prepare and is complicated to operate;

[0007] (2) The lifting path during operation must bypass the docking position. During the process, manual adjustment of the path is required using a traction rope to avoid collisions with the installed equipment and to ensure smooth docking after lifting.

[0008] (3) Fixed hooks can only be set near the docking path. During docking operations, manual labor is required to continuously adjust the position and posture of the pipe section using a traction rope, resulting in poor operational stability.

[0009] (4) This hoisting method can only be carried out smoothly when the height of the GIL equipment is far from the top of the pipe rack, and some environments do not have the capability to operate.

[0010] Meanwhile, through relevant patent searches, specifically by searching for the combination of the keywords "GIL, installation, docking," the following similar patents were found, with the following specific differences:

[0011] Application number: CN201810147551.9, is for a GIL installation tool, control system and method. This patented device is a fully functional independent special equipment. However, it has the problems of large size, complex structure, high cost and very limited market prospects.

[0012] Application No.: CN201910242521.0, a GIL field cylinder docking vehicle. In the structure of this patented device, when adjusting the pipe from axial movement to rotation, a rotating roller is needed to lift the pipe, causing it to detach from the large roller that can move axially. This results in the pipe being unable to move axially after the bolt holes are aligned, making it impossible to bring the two flanges together. The rotating roller needs to be lowered to allow the pipe to fall back onto the large roller, which again causes the bolt holes to no longer align, requiring readjustment of the fork height. Therefore, it is relatively cumbersome to use, and the frame and track are different from those of this invention.

[0013] By searching for the keywords "pipe gallery, pipeline, installation, docking, GIL", the following similar patents were found. The specific differences are shown in the following figure:

[0014] Application No.: CN 202122410752, a municipal utility tunnel pipe laying device. This patented device uses gear and rack transmission and clamping, and has the function of fine adjustment of the spacing in the up and down and left and right directions. However, it cannot realize the circumferential rotation of the pipe section. Its structure and function are different from those of this invention.

[0015] Application No.: CN 202210957110, Method for hoisting large-diameter pipes in large arc-shaped pipe corridors. This patent is mainly used for hoisting pipes in pipe corridors. The basic method is to add hoisting points on the top of the pipe corridor and hoist the pipes using ropes. This method is quite different from the one in this patent. Summary of the Invention

[0016] To address the problems in existing technologies where the use of large machinery is limited and pipeline hoisting and docking are difficult when installing GIL and other large-volume rigid pipe equipment in narrow spaces such as tunnels with gentle slopes, this invention provides a docking device and method for pipe equipment. This method can smoothly and reliably achieve the installation and docking of pipe equipment in narrow pipe corridors, greatly saving preparation work, simplifying the assembly method, and making the assembly operation safer and smoother.

[0017] This invention is achieved through the following technical solution: a docking device for pipeline equipment, comprising a device frame, forks, and a lifting trolley. The device frame is mounted on the forks of a stacker truck, and the device frame and forks are connected. A transmission structure is provided on the top of the device frame. The lifting trolley is connected to the device frame through the transmission structure. A support structure is provided on the device frame, and multiple support structures are provided. Pipes are mounted on the support rollers.

[0018] Furthermore, the support structure is configured to support rollers.

[0019] Furthermore, the device frame includes a guiding and positioning structure and a drive system. The lifting trolley is provided with a transmission interface. The drive system is electrically connected to the lifting trolley. The guiding and positioning structure is located on the top of the device frame. The drive device is connected to the device frame. The lifting trolley is connected to the transmission interface.

[0020] Furthermore, the guiding and positioning structure includes a V-shaped track and a guide rod. The guide rod is disposed at the top of the device frame, and a V-shaped track is disposed on one side of the guide rod. The V-shaped track and the guide rod are disposed in pairs, and the guiding and positioning structure has multiple pairs.

[0021] Furthermore, the V-shaped cross-section of the V-shaped track and the pipe are arranged perpendicular to each other, and the V-shaped surface of the V-shaped track is used to hold the lifting trolley.

[0022] Furthermore, the device frame includes a base and a fastening structure. The base is disposed at the bottom of the device frame and is connected to the forks. The base is connected to the forks through the fastening structure.

[0023] Furthermore, the device frame includes a limiting structure, which includes limiting bolts, and the limiting structure is used to adjust and limit the position of the docking device on the forks.

[0024] Furthermore, the transmission interface provided on the lifting trolley is a caster, and multiple casters are provided.

[0025] A method for connecting pipeline equipment, characterized in that the method includes the following steps:

[0026] Multiple docking devices are installed along the pipeline axis;

[0027] The docking device supports multiple pipe sections and adjusts the coaxiality of the pipe section connections.

[0028] The two adjacent pipes are moved axially and then tightened to complete the docking.

[0029] Furthermore, by connecting flanges between multiple pipe sections, a tight connection between the pipe sections can be achieved.

[0030] Compared with the prior art, the present invention has the following beneficial technical effects:

[0031] This invention provides a docking device for pipeline equipment, which mainly solves the problems of limited use of large machinery, reliance on manual tools for pipeline hoisting and docking, and long operation time when installing GIL or other large-volume rigid pipeline equipment in narrow spaces such as tunnels and pipe corridors with shallow slopes.

[0032] Furthermore, by using smaller tools such as stackers, this docking device enables the smooth and reliable installation and docking of pipeline equipment in narrow pipe racks, saving a significant amount of preparation work, greatly simplifying the assembly method, and making the assembly operation safer and smoother.

[0033] Furthermore, the circumferential rotation of the pipeline is achieved through a structure supporting the rollers; the movement of the lifting trolley along the pipeline axis is achieved through a V-shaped track; the axial movement of the lifting trolley is limited by a guide rod; and the axial movement of the lifting trolley is controlled by a drive system, thereby enabling fine-tuning of the pipeline's axial movement and circumferential rotation.

[0034] Furthermore, the docking structure provided by this invention can be fixed on the forks of mature engineering machinery equipment such as stackers, and by means of the equipment's forward and backward and up and down movements, it can achieve the adjustment requirements for various docking and installation postures of pipelines.

[0035] This invention provides a method for connecting pipeline equipment, specifically for narrow pipe gallery installation environments where large lifting machinery cannot be used. It selects appropriately sized, technologically mature, and widely used small to medium-sized general-purpose machinery as the base platform, and designs a device to supplement the missing operational functions of the selected general-purpose machinery. This effectively reduces the cost and time required for designing and manufacturing dedicated equipment, and improves the versatility of construction machinery. By placing the connecting device of this invention on a forklift for joint use, various adjustments required for pipeline connection and installation can be easily and quickly achieved, eliminating the need to drill holes in the top of the pipe gallery and install hooks for each lifting operation. The lifting and forward extension actions are completed by the forklift, ensuring stability and reliability, eliminating the need for slow manual lifting using chain hoists, and eliminating the need for personnel to control the lifting position and posture. The left and right fine-tuning function of the connecting device ensures smooth and safe operation, and also improves upon the practice of relying on manual pushing and pulling to complete flange connection and approach. The support rollers also serve as pipe section supports, allowing the pipe section to rotate easily under manual control, improving the convenience of bolt insertion and alleviating the problem of inaccurate bolt hole positions caused by rope binding and difficulties in adjustment after lifting. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is the existing method for pipe segment connection;

[0038] Figure 2 This is a schematic diagram of the lifting point structure used in the existing technology for pipe segment connection;

[0039] Figure 3 This invention provides an overall structural schematic diagram of a docking device for pipeline equipment.

[0040] Figure 4 A schematic diagram of the device frame of a docking device for pipeline equipment provided by the present invention;

[0041] Figure 5 This invention provides a schematic diagram of the structure of a lifting trolley for a docking device of pipeline equipment.

[0042] Figure 6 A schematic diagram of the caster configuration of a lifting trolley for a docking device for pipeline equipment provided by the present invention;

[0043] Figure 7 This invention provides a front view schematic diagram of the operation of a docking device for pipeline equipment;

[0044] Figure 8 A left-side view of the docking device for pipeline equipment provided by the present invention;

[0045] In the diagram: 1. Device frame; 2. Lifting trolley; 11. Base; 12. Limiting bolt; 13. Locking bolt; 14. V-shaped rail; 15. Guide rod; 16. Drive system; 161. Gear motor; 162. Screw nut; 21. Caster; 22. Support roller; 23. Car body; 24. Transmission interface; 30. Lifting point; 31. Chain hoist; 100. Forks. Detailed Implementation

[0046] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0051] Example 1:

[0052] In this preferred embodiment, the present invention provides a docking device for pipeline equipment. First, based on the known cross-sectional size of the pipe gallery, a suitable machine for operation inside the pipe gallery is selected, such as a stacker truck, which can turn around inside the pipe gallery. The height of the forks and the shape of the truck body must meet the requirements of the equipment installation height and the height of the top of the pipe gallery. Reliable movement in two dimensions, front-back and up-down, can be achieved in the direction of the pipe gallery cross-section.

[0053] The specific implementation device consists of a device frame 1 and a lifting trolley 2. The device frame 1 is provided with a fastening structure and a limiting structure. The device frame 1 is connected to the forks 100 of the stacker truck by limiting bolts 12 and locking bolts 13.

[0054] In this embodiment, the device frame 1 is provided with a guide positioning structure, which includes two V-shaped rails 14 and two guide rods 15. The V-shaped rails 14 are used to support the lifting trolley 2, and the guide rods 15 are used to restrict the lifting trolley 2 on the V-shaped rails 14.

[0055] The device frame 1 is also provided with a drive system 16 for the lifting trolley 2, which can be driven by hydraulic or screw transmission system. In this embodiment, a screw transmission system is used to control the lifting trolley 2 to move left and right on the V-shaped track 14.

[0056] The lifting trolley 2 is equipped with four casters 21 with V-shaped grooves, which are respectively placed on two V-shaped tracks 14 of the device frame 1. The V-shaped grooves effectively ensure the stable movement of the device. Two guide rods 15 are located in the V-shaped grooves above the casters 21. The two ends of the guide rods 15 are set on the device frame 1, which together with the V-shaped tracks 14 restrict the casters 21 and ensure that the casters 21 do not fall off the tracks.

[0057] The lifting trolley 2 is also provided with a transmission interface, which is connected to the drive system 16 of the device frame 1 to realize the left and right movement adjustment of the lifting trolley 2.

[0058] The lifting trolley 2 is also equipped with two support rollers 22, which are perpendicular to the direction of the casters 21. The support rollers 22 are used to lift the rigid pipe and can realize the circumferential rotation of the pipe.

[0059] A method for connecting pipeline equipment includes the following steps:

[0060] Rigid pipes are transported sequentially to the docking installation location in the tunnel or utility tunnel using a V-shaped transfer vehicle; two stackers are arranged along the length of the utility tunnel, which can move along the cross-section of the tunnel; a docking device is installed and fixed on the forks of each of the two stackers to support the rigid pipes.

[0061] During the docking, the two stackers extend their forks 100 into the underside of the pipe section about 1 to 2 meters inward from both ends of the pipe section being lifted. The pipe section is then lifted by the support rollers 22 of the lifting trolley 2. The two stackers move forward and upward simultaneously to lift the pipe section to a position where it is basically coaxial with the flange of the docking pipe section, with a certain distance between the docking surfaces of the two pipe sections.

[0062] After completing the internal installation and cleaning of the two pipe sections, the lifting trolley 2 is moved (left and right) on the track of the caster 21 of the docking device to slowly bring the lifting pipe section closer to the docking flange.

[0063] Manually fine-tune the rotation of the pipe section along the circumference and connect the two pipe sections through the flange. Use two locating pins diagonally to pierce the flange bolt holes of the two pipe sections, install bolts in the remaining bolt holes, and tighten the two flange faces. Then remove the locating pins, replace them with bolts, and tighten them.

[0064] Lower the forks of the stacker truck by 100mm, place the connected pipe section on the product bracket and secure it.

[0065] The two stackers reversed, disengaging the forks 100 and the docking device from the docking pipe section;

[0066] The stacker truck turns 90°, drives along the pipe rack to the next docking and lifting position, then turns back to the pipe rack section direction to begin the installation of the next pipe section.

[0067] Under the docking scheme provided by this invention, the GIL hoisting pipe segment can achieve fine-tuning actions in four dimensions: front and back, left and right, lifting and lowering, and rotation along the circumference of the pipe segment at the docking position of the pipe gallery section.

[0068] Example 2:

[0069] This invention provides a docking device for pipeline equipment, comprising a device frame 1 and a lifting trolley 2.

[0070] The device frame 1 includes a base 11, four limiting bolts 12 and four locking bolts 13. The base 11 is used to place the docking device on the forks of the stacker truck. The limiting bolts 12 are used to adjust and limit the position of the docking device on the stacker truck forks. The locking bolts 13 are used to fix the device frame on the stacker truck forks.

[0071] The device frame 1 also includes two V-shaped tracks 14 and two guide rods 15. The V-shaped tracks 14 are used to support the lifting trolley and provide a track for the lifting trolley to run on. The two ends of the guide rods 15 are fixed to the frame of the docking device to prevent the lifting trolley from leaving the V-shaped tracks.

[0072] The device frame 1 also includes a lifting trolley drive system 16, which is used to control the lifting trolley to move left and right on the track; the drive system can be a hydraulic transmission, screw and nut transmission, ball screw transmission, gear transmission or crank arm linkage transmission system, etc.

[0073] In this example, the lifting trolley drive system 16 uses a geared motor 161 and a lead screw and nut 162 for transmission.

[0074] The lifting trolley 2 includes four casters 21 with V-shaped grooves. The casters are divided into two groups and placed on two V-shaped tracks 14 of the device frame 1, respectively, to enable the lifting trolley 2 to move left and right on the device frame 1. The guide rod 15 passes through the V-shaped groove space above the caster 21 and is fixed to the device frame 1. Together with the V-shaped tracks 14 on the device frame 1, it restricts the casters 21 and prevents the casters 21 from falling off the V-shaped tracks 14.

[0075] The lifting trolley also includes two support rollers 22, which are perpendicular to four casters 21 and are used to lift the rigid pipe and enable the rigid pipe to rotate circumferentially. The surface of the support rollers 22 is made of polyurethane or other soft wear-resistant materials to increase the anti-slip properties of the support rollers 22 and prevent the outer wall of the rigid pipe from being damaged by the impact and rolling of the rollers 22.

[0076] like Figure 6 As shown, the lifting trolley also includes a trolley body 23 and a transmission interface 24. The trolley body 23 is formed by bending and welding steel plates, and has a lightweight and sturdy structure. It is used to fix the aforementioned four casters and two support rollers. The structure of the lifting trolley formed by bending and welding steel plates can effectively reduce the complexity of operation.

[0077] In this embodiment, the transmission interface 24 is an interface holder for the transmission screw nut. The transmission interface is fixed to the bottom of the vehicle body and is fastened to the aforementioned screw nut 162. It is used to drive the lifting trolley to move left and right and stop according to the instructions of the aforementioned drive system 16, following the screw nut 162.

[0078] The present invention relates to a method for installing and connecting pipework equipment in a narrow pipe gallery using a docking device.

[0079] When installing pipeline equipment in a utility tunnel, rigid pipes are sequentially transported to the vicinity of the installation location within the tunnel or utility tunnel using a V-shaped transfer vehicle. Two stacker trucks are arranged along the length of the utility tunnel, capable of moving back and forth along the internal cross-section. Each stacker truck has a fixed docking device installed on its forks to support the rigid pipes. Figure 7 , 8 As shown.

[0080] The installation steps are as follows:

[0081] Two stacker trucks are positioned approximately 1-2 meters inward from both ends of the pipe section being lifted, with their forks and docking devices inserted under the pipe section. The pipe section is then lifted by the support rollers of the lifting trolley, and the V-shaped transfer vehicle below is removed.

[0082] The two stacker trucks moved upward and forward simultaneously, until they reached a position where the lifting pipe section and the connecting pipe section were basically coaxial, but there was a certain distance between the two pipe sections' mating surfaces.

[0083] After completing the internal installation and cleaning of the two pipe sections, the lifting trolley is moved (left and right) on the V-shaped track of the docking device to slowly bring the lifting pipe section closer to the docking flange.

[0084] Manually fine-tune the rotation of the pipe section along the circumference, and use two locating pins to pierce the flange bolt holes of the two pipe sections at diagonal positions. Install bolts in the remaining bolt holes, tighten the two flange faces, remove the two locating pins, replace the bolts and tighten them.

[0085] Lower the forks of the stacker truck, place the connected pipe section on the pipe equipment support, and secure it.

[0086] The two stackers reversed, disengaging the forks and docking device from the docking pipe section;

[0087] The stacker truck turns 90°, travels along the pipe rack to the next pipe connection and support position, then turns back to the pipe rack cross-section direction to begin the installation of the next pipe section.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0089] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A docking device for a pipe-like apparatus, characterized in that, Including device frame (1), fork (100) and lifting trolley (2), the device frame (1) is arranged on the fork (100) of the stacker, the device frame (1) and the fork (100) are connected, the top of the device frame (1) is provided with transmission structure, the lifting trolley (2) is connected with the device frame (1) through the transmission structure, the device frame (1) is provided with support structure, the support structure is provided with a plurality of support rollers (22); The support roller (22) is provided with a pipe; The lifting trolley (2) is provided with four V-shaped groove wheels (21) at the bottom; the support roller (22) is perpendicular to the direction of the wheel (21); The device frame (1) includes a guide positioning structure and a driving system (16), the lifting trolley (2) is provided with a transmission interface, the driving system (16) and the lifting trolley (2) are electrically connected, the guide positioning structure is arranged at the top of the device frame (1), the driving system (16) and the device frame (1) are connected, the lifting trolley (2) and the transmission interface are connected; The guide positioning structure includes V-shaped track (14) and guide rod (15), the guide rod (15) is arranged at the top of the device frame (1), one side of the guide rod (15) is provided with V-shaped track (14), the V-shaped track (14) and the guide rod (15) are arranged in pairs, the guide positioning structure is provided with multiple pairs; The device frame (1) includes a base (11) and a fastening structure, the base (11) is arranged at the bottom of the device frame (1), the base (11) is connected with the fork, and the base (11) is connected with the fork through the fastening structure.

2. A docking device for a pipe-like apparatus according to claim 1, characterized in that The V-shaped section of the V-shaped track (14) and the pipe are arranged perpendicular to each other, and the V-shaped surface of the V-shaped track (14) is clamped with the lifting trolley (2).

3. A docking device for a pipe-like apparatus according to claim 1, characterized in that The device frame (1) includes a limiting structure, the limiting structure includes a limiting bolt (12), and the limiting structure is used for adjusting and limiting the position of the docking device on the fork.

4. The apparatus of claim 1, wherein, The transmission interface provided on the lifting trolley (2) is a wheel (21), and the wheel (21) is provided with a plurality of wheels.

5. A method of docking a docking device for a pipe-like apparatus according to any one of claims 1 to 4, characterized in that The docking method comprises the following steps: A plurality of docking devices are arranged along the axis direction of the pipe; The docking device lifts a plurality of pipe sections, adjusts the coaxiality of the connection of the pipe sections, moves axially to connect the adjacent two pipes and fastens, and completes the docking. The flanges between the pipe sections are connected to realize the fastening and docking between the pipe sections.

6. The method of docking of a docking device of a pipe-like apparatus according to claim 5, characterized in that, ​

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