A thermal engineering pipeline construction docking device

Abstract

The present invention relates to the technical field of thermal pipeline construction, and in particular to a thermal engineering pipeline construction docking device, comprising two support parts and two mounting plates arranged opposite to each other along the pipeline radial direction, the mounting plates being detachably connected to the support parts; a guide docking mechanism is provided on the mounting plate, the guide docking mechanism comprising a support arc plate located below the front pipeline, at least two positioning arc plates located below the rear pipeline, and a bracket for mounting the support arc plate and the positioning arc plate, the support arc plate and the positioning arc plate being aligned. The support arc plate is attached to the bottom side of the front pipeline, and the positioning arc plate is attached to the surface of the rear pipeline. Since the support arc plate and the positioning arc plate are aligned front to back, the front and rear pipelines are also aligned, pushing the rear pipeline forward, rotating the pipeline after docking so that the flange screw holes are aligned, and the front and rear pipelines are installed, thereby reducing the wear of the flange end face, the risk of damage and leakage of the rubber pad, and the collision between the two pipelines, thereby improving the connection accuracy between the pipelines.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal pipeline construction, in particular to a thermal engineering pipeline construction docking device. Background Art

[0002] In thermal engineering, thermal pipelines are key equipment for transporting thermal energy media such as steam or superheated water. During thermal pipeline construction, trenches are usually excavated on the road surface first, and the pipelines are hoisted into them and then connected in sequence. Pipes are mostly connected by welding and flanges. Flange connection connects two flanges together with bolts, which is very convenient for installation and removal. Flange connection is usually used at key nodes of pipelines, transition points of segmented installation of pipeline systems, and some pipe sections that require regular maintenance or replacement. When equipment needs to be repaired or replaced, the pipeline can be separated from the equipment by simply loosening the bolts, without cutting the pipeline, which greatly improves maintenance efficiency. Flange connection can also adapt to pipes of different materials and specifications, and has strong versatility.

[0003] In the existing technology, the construction method of the thermal pipeline is to first lift the pipeline into the trench by a crane, close to the pipeline to be connected in the trench, and the worker adjusts one end of the pipeline on site to be flush with one end of the previous pipeline, rotates the pipeline to align the flange bolt holes, welds the bracket to the bottom of the pipeline through angle iron, and fixes the pipeline to the bracket by pipe clamps; however, when the worker adjusts the alignment of the front and rear pipelines, it is often necessary to control the crane to make repeated adjustments while observing that there is no gap between the left and right front and back flange surfaces of the pipe orifices so that the front and rear flange end faces of the two pipe orifices are flush. The back and forth alignment adjustment not only makes the flange end face easy to wear and damage the rubber pad, increasing the risk of leakage, but the impact between the two pipelines will also cause the pipeline to deviate, affecting the connection accuracy between the pipelines, and even requires pads to be placed on the bracket to ensure the support effect of the pipeline.

[0004] Chinese invention patent CN113478165A discloses a thermal pipeline construction docking device, comprising clamping assemblies symmetrically arranged on two pipelines, multiple electric telescopic rods connected between the two clamping assemblies, and a mounting assembly for tightening fixing bolts on the clamping assemblies. The clamping assemblies are detachably connected to the pipelines, and are provided with a centering sleeve that moves axially along the pipeline on the clamping assemblies. Both ends of the electric telescopic rods are rotatably connected to the clamping assemblies. When the electric telescopic rods are rotated to be perpendicular to the ends of the clamping assemblies, the side walls of the electric telescopic rods mate with the inner side walls of the centering sleeves. The mounting assembly is rotatably connected to the ends of the clamping assemblies, which can effectively increase the speed of thermal pipeline docking, reduce installation strength, and ensure pipeline installation efficiency. However, the present invention does not solve the problem of uneven pipe flange ends. Chinese invention patent CN119022123A discloses a thermal engineering pipeline construction docking device, comprising a mounting base and a pipeline. The mounting base has a set of engaging frames slidably mounted on the top of the mounting base, a set of pull rings fixedly mounted on the top of the engaging frames, a set of double-headed screws rotatably mounted on the bottom of the mounting base, a set of first motors fixedly mounted on the outer end of the mounting base, and a set of movable frames threadedly mounted on the outer end of the mounting base, and a set of spline shafts rotatably mounted on the outer end of the movable frames. When the mounting base is lifted and docked with the left-end pipeline through a first fixed arc block, the mounting base can move up and down, improving the adjustability of the device. The right-end pipeline is driven by a second fixed frame to rotate, so that the installation hole of the right-end pipeline is aligned with the installation hole of the left-end pipeline, providing better adjustability of the device and solving the problems of inconvenient docking positioning, poor docking installation efficiency, and poor adjustability between two pipelines in the docking device. However, due to the long pipeline, the docking end is easily offset under the weight of the other end, resulting in uneven fracture. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the above-mentioned prior art and provides a thermal engineering pipeline construction docking device. The present invention guides the docking mechanism by fitting the support arc plate to the bottom side of the front pipeline and fitting the positioning arc plate to the surface of the rear pipeline. Since the support arc plate and the positioning arc plate are aligned front to back, the front and rear pipelines are also aligned, pushing the rear pipeline forward. After docking, the pipelines are rotated to align the flange screw holes, and the front and rear pipelines are installed, avoiding direct contact and adjustment between the two pipeline ports. This achieves the effect of reducing wear on the flange end face, damage to the rubber pad and the risk of leakage, as well as collision between the two pipelines, and improving the connection accuracy between the pipelines.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a thermal engineering pipeline construction docking device, including two support parts located at the pipeline docking point and arranged oppositely along the axial direction of the pipeline and two mounting plates arranged oppositely along the radial direction of the pipeline, the mounting plates and the support parts are detachably connected; a guide docking mechanism is provided on the mounting plate, the guide docking mechanism includes a support arc plate located below the front pipeline, at least two positioning arc plates located below the rear pipeline and a bracket for installing the support arc plate and the positioning arc plate, the support arc plate and the positioning arc plate are aligned.

[0007] Preferably, the guide docking mechanism further comprises a bracket for mounting the supporting arc plate and the positioning arc plate, a moving block is provided below the bracket, and a slideway cooperating with the moving block is provided on the mounting plate.

[0008] Preferably, the guide docking mechanism further includes a matching screw rod and a slider, both ends of the screw rod are rotatably arranged on the mounting plate, and the slider is connected to the bracket.

[0009] Preferably, the support portion includes a cross bar located below the pipe and vertical bars located on both sides of the pipe, a slide bar is provided below the cross bar, and a slide groove cooperating with the slide bar is provided on the mounting plate.

[0010] Preferably, the cross bar is provided with a long strip-shaped slot.

[0011] Preferably, the supporting arc plate and the positioning arc plate are provided with a rotating part, and the rotating part includes a roller frame and a plurality of rollers installed on the roller frame, and the plurality of rollers are arranged in an arc shape and are used to drive the rotation close to the surface of the pipe; a driven gear is provided at one end of the roller, and an intermediate gear is engaged between two adjacent driven gears, one of the driven gears is engaged with the driving gear, and a hexagonal head is provided at one end of the shaft of the driving gear.

[0012] Preferably, one side of the two positioning arc plates is respectively provided with an adjustment mechanism, and the adjustment mechanism includes a shell fixed on the mounting plate and a slide rod slidably arranged in the shell, the slide rod is provided with a plurality of grooves, and the side surface of the groove along the axial direction is an inclined surface, and the upper side of the shell is provided with a plurality of through holes, and a top column is provided in the through hole, the upper end of the top column is pushed upward to support the pipe, and the lower end is located in the groove; one end of the slide rod extends from the shell and is axially connected to a measuring ruler rod, a measuring ring is sleeved on the measuring ruler rod, and the measuring ring is fixedly connected to the mounting plate.

[0013] Preferably, the adjustment mechanism further includes a handle and a sliding sleeve, one end of the handle is connected to the measuring ruler rod, and the sliding sleeve is arranged on the mounting plate and sleeved on the handle.

[0014] Preferably, the mounting plate is also provided with an auxiliary movable component, and the auxiliary movable component includes a connecting plate, a vertical plate and a side plate, one end of the connecting plate is connected to the mounting plate, and the other end is connected to the vertical plate, the side plate is vertically fixedly connected to one side of the vertical plate, and the other side of the vertical plate is provided with a screw hole plate opposite to the side plate, and the screw hole plate is provided with a plurality of screw holes, and bolt rods are provided in the screw holes.

[0015] Preferably, a lifting portion is provided below the cross bar of the rear pipe.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] (1) First, support the front pipe through the support part, and the support arc plate of the guide docking mechanism is attached to the bottom side of the front pipe. Then, one end of the rear pipe is placed on the support part below it, and the positioning arc plate is attached to the surface of the rear pipe. Since the support arc plate and the positioning arc plate are aligned front and back, the front and rear pipes are also aligned, pushing the rear pipe forward. After docking, rotate the pipe so that the flange screw holes are aligned, and install the front and rear pipes. When aligning the pipes, contact adjustment between the two pipe ports is avoided, reducing the wear of the flange end face, damage to the rubber pad and the risk of leakage, and reducing the collision between the two pipes and the impact on the connection accuracy between the pipes.

[0018] (2) The support part also serves as a pipe port bracket. The support part can be welded on site by angle iron according to the height of the pipe. The material is easy to obtain and the cost is low.

[0019] (3) By rotating the screw rod, the slider drives the bracket to move, and the moving blocks and slides on both sides play the role of limiting and guiding, so that the supporting arc plate and the positioning arc plate can move synchronously with the bracket to achieve alignment and guidance of the pipeline.

[0020] (4) The two ends of the vertical pole are clamped by the side plate and the screw hole plate. The vertical pole is an angle iron. The bolt rod is screwed into the screw hole of the screw hole plate to block the inner side of the angle iron, which facilitates the vertical movement of the mounting plate and the cross bar, making the cross bar close to the vertical pole and easy to weld.

[0021] (5) The pipe is supported by multiple rollers and fits on the pipe surface. It not only plays the same guiding and alignment role as the two arc plates, but also can control the rotation of the driving gear by rotating the hexagonal head, and then drive the rollers to rotate through the intermediate gear and the driven gear to realize the rotation of the pipe and align the port flanges.

[0022] (6) By moving the measuring rod and driving the slide rod to move in the shell, the top column in the groove can be lifted by the inclined surface and pressed against the lower side of the pipe; the scale of the measuring rod of the adjustment mechanism on one side of the two positioning arc plates at the measuring ring can be observed to judge the height of the pipe and then adjust the level of the pipe. This is better than the observation effect of the human eye, which improves the use effect and the accuracy of pipe docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the use of this docking device;

[0024] Figure 2 for Figure 1 A partial schematic diagram of the pipe joint;

[0025] Figure 3 This is a three-dimensional schematic diagram of the docking device;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic cross-sectional view of the rotating part;

[0029] Figure 7 This is a sectional view of the side of the adjusting mechanism at the housing.

[0030] Description of reference numerals:

[0031] 1-support part, 11-vertical pole, 12-cross bar, 13-slide bar, 14-slot hole;

[0032] 2-mounting plate, 21-slide groove, 22-slideway;

[0033] 3-guide docking mechanism, 31-support arc plate, 32-positioning arc plate, 33-bracket, 34-moving block, 35-screw rod, 36-slider;

[0034] 4-rotating part, 41-roller, 42-roller frame, 43-driven gear, 44-intermediate gear, 45-driving gear, 46-hexagonal head;

[0035] 5-adjusting mechanism, 51-housing, 511-through hole, 52-sliding rod, 521-groove, 53-top column, 54-measuring ruler rod, 55-measuring ring, 56-handle, 57-sliding sleeve;

[0036] 6- auxiliary moving assembly, 61- connecting plate, 62- vertical plate, 63- side plate, 64- screw hole plate, 65- bolt rod;

[0037] 7- Lifting part. DETAILED DESCRIPTION

[0038] In order to enable people skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Example

[0040] The following is combined with Figure 1-Figure 7 The present invention is further described as follows: a thermal engineering pipeline construction docking device, such as Figure 1 、 Figure 2 and Figure 3 As shown, it includes two support parts 1 located at the pipe docking point and arranged oppositely along the axial direction of the pipe and two mounting plates 2 arranged oppositely along the radial direction of the pipe, and the mounting plates 2 are detachably connected to the support parts 1; a guide docking mechanism 3 is provided on the mounting plate 2, and the guide docking mechanism 3 includes a support arc plate 31 located below the front pipe, at least two positioning arc plates 32 located below the rear pipe and a bracket 33 for installing the support arc plate 31 and the positioning arc plate 32, and the support arc plate 31 is aligned with the positioning arc plate 32.

[0041] The support part 1 is first used to support the previous pipe, and the support part 1 also acts as a pipe port bracket. The support part 1 can be welded on-site by angle iron according to the height of the pipe, which is convenient to obtain materials and low in cost; the support arc plate 31 of the guide docking mechanism 3 is fitted on the bottom side of the previous pipe, and then one end of the rear pipe is placed on the support part 1 below it, and the positioning arc plate 32 is fitted on the surface of the rear pipe. Since the support arc plate 31 and the positioning arc plate 32 are aligned front to back, the front and rear pipes are also aligned. The rear pipe is slowly pushed forward by a crane and on-site manual labor, and is always aligned with the front pipe under the limit of the positioning arc plate 32. After docking, the pipe is rotated to align the flange screw holes, the front and rear pipes are installed, and then the mounting plate 2 and the guide docking mechanism 3 are removed for subsequent pipe docking; when aligning the pipes, contact adjustment between the two pipe ports is avoided, the wear of the flange end faces, the damage of the rubber pads and the risk of leakage are reduced, and the collision between the two pipes and the impact on the connection accuracy between the pipes are reduced.

[0042] like Figure 4 and Figure 5 As shown, the support part 1 includes a crossbar 12 located below the pipe and vertical bars 11 located on both sides of the pipe. A slide bar 13 is provided below the crossbar 12, and a slide groove 21 is provided on the mounting plate 2 to cooperate with the slide bar 13. A lifting part 7 is provided below the crossbar 12 of the rear pipe. The lifting part 7 can be a lifting cylinder, a hydraulic jack or a jack.

[0043] When using this device, first install the first pipe, and then the four vertical poles 11 are respectively set on both sides of the position where the first pipe and the second pipe to be installed should be located. They can be set a little further away from the two sides of the pipe, leaving a certain space between the pipes to facilitate pipe installation; the cross bar 12 is placed on the bottom side of the pipe, and the two mounting plates 2 are respectively matched with the two cross bars 12 through the slide bars 13 and the slide grooves 21, located on both sides of the pipe, and the mounting plate 2 is moved vertically upward to press the upper side of the cross bar 12 against the lower side of the pipe. The cross bar and the vertical pole 11 are welded and fixed, and the bracket 33 is moved to fit the support arc plate 31 to the lower side of the previous pipe. Similarly, the positioning arc plate 32 also moves synchronously with the bracket 33;

[0044] When the second pipe is in the groove, the port is close to the first pipe and placed on the positioning arc plate 32; at the same time, the rear end of the second pipe, that is, the docking point with the third pipe, the same support part 1 is set, and the cross bar 12 and the mounting plate 2 are matched, the rear port of the second pipe is placed on the corresponding cross bar 12, and the lifting part 7 lifts up this cross bar 12, and observes the fit between the front end of the second pipe and the two positioning arc plates 32. When there is no gap, the pipe is just fitted with the positioning arc plates 32. Since the support arc plate 31 and the positioning arc plate 32 are aligned, the axes of the front and rear pipes coincide, and the cross bar 12 of the rear port of the second pipe can also be welded to the vertical pole 11 at the same time; then the second pipe is slightly lifted by the sling, and the worker moves it forward to dock with the first pipe. After docking, the mounting plate 2 and the guide docking mechanism 3 are removed for the docking of subsequent pipes; this improves the docking effect between the pipes, reduces damage to the end flanges, and makes the entire pipe installation process more time-saving and labor-saving.

[0045] like Figure 3 As shown, the cross bar 12 is provided with an elongated slot 14 for mounting a pipe clamp of a pipeline.

[0046] like Figure 3 As shown, the guide docking mechanism 3 also includes a bracket 33 for mounting the supporting arc plate 31 and the positioning arc plate 32. A movable block 34 is provided below the bracket 33, and a slide 22 is provided on the mounting plate 2 to cooperate with the movable block 34. The guide docking mechanism 3 also includes a matching screw rod 35 and a slider 36. The screw rod 35 is rotatably mounted on the mounting plate 2 at both ends, and the slider 36 is connected to the bracket 33.

[0047] By rotating the screw rod 35, the slider 36 drives the bracket 33 to move, and the moving blocks 34 and the slide 22 on both sides play a role of limiting and guiding, so that the supporting arc plate 31 and the positioning arc plate 32 can move synchronously with the bracket 33 to achieve alignment and guidance of the pipeline.

[0048] like Figure 4 and Figure 5As shown, an auxiliary moving component 6 is also provided on the mounting plate 2, and the auxiliary moving component 6 includes a connecting plate 61, a vertical plate 62 and a side plate 63. One end of the connecting plate 61 is connected to the mounting plate 2, and the other end is connected to the vertical plate 62. The side plate 63 is vertically fixed to one side of the vertical plate 62, and the other side of the vertical plate 62 is provided with a screw hole plate 64 opposite to the side plate 63. The screw hole plate 64 is provided with a plurality of screw holes, and bolt rods 65 are provided in the screw holes.

[0049] When it is necessary to move the mounting plate 2 and the cross bar 12 through the lifting part 7, the side plate 63 and the screw hole plate 64 are clamped at both ends of the vertical pole 11. The vertical pole 11 is an angle iron. The bolt rod 65 is screwed into the screw hole of the screw hole plate 64 to block the inner side of the angle iron, thereby facilitating the vertical movement of the mounting plate 2 and the cross bar 12, so that the cross bar 12 is close to the vertical pole 11, and welding is convenient.

[0050] Example 2

[0051] The difference of this embodiment is that Figure 3 and Figure 6 As shown, a rotating part 4 is provided on the supporting arc plate 31 and the positioning arc plate 32. The rotating part 4 includes a roller frame 42 and a plurality of rollers 41 mounted on the roller frame 42. The plurality of rollers 41 are arranged in an arc shape and are used to drive the rotation by being close to the surface of the pipe; a driven gear 43 is provided at one end of the roller 41, and an intermediate gear 44 is engaged between two adjacent driven gears 43, one of the driven gears 43 is engaged with a driving gear 45, and a hexagonal head 46 is provided at one end of the shaft of the driving gear 45.

[0052] The pipeline is supported by multiple rollers 41, which are arranged along the two arc plates and can also be attached to the surface of the pipeline. The rollers 41 on the supporting arc plate 31 and the positioning arc plate 32 are aligned, which not only plays the same guiding and alignment role as the two arc plates, but also can control the rotation of the driving gear 45 by turning the hexagonal head 46 with a wrench, and then drive the rollers 41 to rotate through the intermediate gear 44 and the driven gear 43, thereby realizing the rotation of the pipeline and aligning the port flanges.

[0053] Example 3

[0054] The difference of this embodiment is that Figure 3 and Figure 7As shown, an adjustment mechanism 5 is provided on each side of the two positioning arc plates 32. The adjustment mechanism 5 includes a housing 51 fixed to the mounting plate 2 and a slide rod 52 slidably disposed within the housing 51. The slide rod 52 is provided with multiple grooves 521, one side of which is inclined along the axial direction. The housing 51 is provided with multiple through holes 511 on the upper side, and a push rod 53 is disposed within the through holes 511. The upper end of the push rod 53 protrudes upward to support the pipe, and the lower end is located within the groove 521. One end of the slide rod 52 extends from the housing 51 and is axially connected to a measuring rod 54. The measuring rod 54 is sleeved with a measuring ring 55, which is fixedly connected to the mounting plate 2. The adjustment mechanism 5 also includes a handle 56 and a sliding sleeve 57. One end of the handle 56 is connected to the measuring rod 54, and the sliding sleeve 57 is disposed on the mounting plate 2 and sleeved over the handle 56.

[0055] Pulling the handle 56 back and forth drives the measuring ruler rod 54 to move, and simultaneously drives the slide rod 52 to move in the housing 51, so that the top column 53 in the groove 521 can be lifted by the inclined surface and pressed against the lower side of the pipe; observing the scales of the measuring ruler rod 54 of the adjustment mechanism 5 on one side of the two positioning arc plates 32 at the measuring ring 55, the measuring ruler rod 54 that moves a greater distance corresponds to a position in the pipe that is higher than the position of the other measuring ruler rod 54 corresponding to the pipe. The rear end of the rear pipe to be installed should be controlled to rise and fall by the lifting part 7 to lower the high position of the pipe, which is better than the observation effect of the human eye, especially when the rotating part 4 is provided, the use effect and the accuracy of pipe docking are improved.

[0056] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are intended only to describe the present invention and do not require that the present invention must be constructed or operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense. For example, they can be connected or detachably connected; they can be directly connected or indirectly connected through an intermediate component. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0057] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A thermal engineering pipeline construction docking device, characterized in that: It comprises two supporting parts (1) located at the butt joint of the pipeline and arranged opposite to each other along the axial direction of the pipeline, and two mounting plates (2) arranged opposite to each other along the radial direction of the pipeline, wherein the mounting plates (2) are detachably connected to the supporting parts (1); The mounting plate (2) is provided with a guide docking mechanism (3), the guide docking mechanism (3) comprising a supporting arc plate (31) located below the front pipe, at least two positioning arc plates (32) located below the rear pipe, and a bracket (33) for mounting the supporting arc plate (31) and the positioning arc plate (32), wherein the supporting arc plate (31) and the positioning arc plate (32) are aligned with each other; A moving block (34) is provided below the bracket (33), and a slideway (22) cooperating with the moving block (34) is provided on the mounting plate (2); The support portion (1) comprises a crossbar (12) located below the pipe and vertical bars (11) located on both sides of the pipe, a slide bar (13) is provided below the crossbar (12), and a slide groove (21) is provided on the mounting plate (2) that cooperates with the slide bar (13); An adjustment mechanism (5) is provided on one side of each of the two positioning arc plates (32), and the adjustment mechanism (5) includes a shell (51) fixed on the mounting plate (2) and a slide rod (52) slidably arranged in the shell (51), and a plurality of grooves (521) are provided on the slide rod (52), and a side surface of the groove (521) along the axial direction is an inclined surface, and a plurality of through holes (511) are provided on the upper side of the shell (51), and a top column (53) is provided in the through hole (511), and the upper end of the top column (53) is pushed upward to support the pipe, and the lower end is located in the groove (521); One end of the slide rod (52) extends from the housing (51) and is axially connected to a measuring ruler rod (54). A measuring ring (55) is sleeved on the measuring ruler rod (54), and the measuring ring (55) is fixedly connected to the mounting plate (2). The adjustment mechanism (5) further comprises a handle (56) and a sliding sleeve (57), wherein one end of the handle (56) is connected to the measuring ruler rod (54), and the sliding sleeve (57) is arranged on the mounting plate (2) and sleeved on the handle (56).

2. A thermal engineering pipeline construction docking device according to claim 1, characterized in that: The guide docking mechanism (3) further comprises a matching screw rod (35) and a slider (36), wherein both ends of the screw rod (35) are rotatably arranged on the mounting plate (2), and the slider (36) is connected to the bracket (33).

3. A thermal engineering pipeline construction docking device according to claim 1, characterized in that: The crossbar (12) is provided with a long strip-shaped slot (14).

4. A thermal engineering pipeline construction docking device according to claim 1, characterized in that: A rotating portion (4) is provided on the supporting arc plate (31) and the positioning arc plate (32), and the rotating portion (4) includes a roller frame (42) and a plurality of rollers (41) mounted on the roller frame (42), wherein the plurality of rollers (41) are arranged in an arc shape and are used to be closely attached to the surface of the pipe and driven to rotate; A driven gear (43) is provided at one end of the roller (41), an intermediate gear (44) is meshed between two adjacent driven gears (43), one of the driven gears (43) is meshed with a driving gear (45), and a hexagonal head (46) is provided at one end of the shaft of the driving gear (45).

5. A thermal engineering pipeline construction docking device according to claim 1, characterized in that: The mounting plate (2) is further provided with an auxiliary moving assembly (6), the auxiliary moving assembly (6) comprising a connecting plate (61), a vertical plate (62) and a side plate (63), one end of the connecting plate (61) being connected to the mounting plate (2) and the other end being connected to the vertical plate (62), the side plate (63) being vertically fixedly connected to one side of the vertical plate (62), the other side of the vertical plate (62) being provided with a screw hole plate (64) opposite to the side plate (63), the screw hole plate (64) being provided with a plurality of screw holes, and bolt rods (65) being provided in the screw holes.

6. A thermal engineering pipeline construction docking device according to claim 1, characterized in that: A lifting portion (7) is provided below the crossbar (12) of the rear pipe.

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