Windproof shed device for protecting operation under automatic welding groove of pipeline

Abstract

The invention provides a wind-proof shed device for protecting operation under an automatic welding groove of a pipeline. The wind-proof shed device comprises a wind-proof shed body with a welding space; an escape skylight; folding the bottom plate; folding the ceiling; a damper door; the opening and closing mechanism and the pneumatic supporting rod are linked; the structural strength of the windproof shed device is set on the basis of analysis of a pipe ditch slope sliding body, the static load borne by the side face is not smaller than 60 KN, and the impact load borne by the ceiling is not smaller than 15 KN. When the windproof shed body is placed towards a welded junction of a pipeline, the windproof door enables the folding bottom plate to rotate and unfold in the closing direction along a hinge point under the action of the gravity of the windproof shed, and a welding space where the pipeline penetrates is closed. And when the windproof shed body is lifted away from the welded junction of the pipeline, the folding bottom plate is rotated and folded in the opening direction along the hinge point, so that the windproof shed is lifted away from the welded junction and moved to the next welding station. The safety of under-ditch operation is guaranteed, and the construction efficiency of under-ditch operation of pipeline construction is improved.

Description

Technical Field

[0001] This application relates to the field of oil and gas pipeline construction equipment, and in particular to a windproof canopy device for automatic pipeline welding trench operation protection. Background Technology

[0002] In oil and gas pipeline construction, when pipelines pass through mountainous and hilly areas, the connection and welding operations are often carried out in trenches due to terrain and limited working space. With the widespread application of automatic pipeline welding technology, the application scope of automatic pipeline welding equipment has gradually expanded to special working conditions such as mountainous areas. Landslides, collapses, and rockfalls in pipeline trenches have created significant safety hazards for automatic welding operations in trenches, severely restricting the efficiency and safety of oil and gas pipeline construction.

[0003] In the construction of automatic pipeline welding in trenches, on the one hand, the geological topography, trench depth, and climate conditions vary greatly in the areas traversed, and the narrow space of the trench affects the visibility and hearing of construction personnel, making it difficult to detect slope slippage and collapse hazards in a timely manner. On the other hand, the automatic pipeline welding equipment needs to be hoisted and moved in a confined space with a complex and heavy welding system. However, the existing automatic pipeline welding windproof sheds not only have unreasonable structural layouts and high transportation costs, but also focus on welding windproofing, with inconsistent specifications and quality, low strength, and no safety protection function for trench operations, facing safety risks such as windproof shed hoisting overload and trench collapse. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a protective device for underground operations during automatic pipeline welding. This device is primarily used for wind protection during automatic pipeline welding construction and to protect the safety of operators and equipment working underground. It aims to solve the problems of existing windproof canopies having low structural strength, high installation, maintenance, and transportation costs, and lacking safety protection functions for underground operations.

[0005] The technical solution of this application is:

[0006] A windproof canopy device for protecting workers operating in an automatic pipeline welding trench includes:

[0007] The windproof canopy body has openings at the top and bottom, and passageways on opposite sides, with a hollow interior forming a welding space.

[0008] A folding base plate is movably installed at the bottom opening of the windbreak canopy body and is hinged to the windbreak canopy body.

[0009] A folding canopy is fitted into the top opening of the windbreak canopy body;

[0010] An escape skylight is installed on at least one side of the folding roof;

[0011] A windbreak door is provided on both sides of the windproof canopy body where the pipe is located, and the windbreak door is equipped with guide rollers that contact the pipe to open and close the windbreak door;

[0012] The device also includes a linkage opening and closing mechanism and a pneumatic support rod installed on the windproof canopy body. The pneumatic support rod is also connected to the windproof door, and the linkage opening and closing mechanism is also connected to the windproof door and the folding base plate respectively.

[0013] When the windproof canopy body is placed toward the pipe weld joint, the windbreak door, under the action of the windproof canopy's own weight, drives the linkage opening and closing mechanism to rotate and close the windbreak door toward the pipe, compresses and resets the pneumatic support rod, and causes the folding bottom plate to rotate and unfold along the hinge point toward the closing direction, sealing the welding space through which the pipe passes.

[0014] When the windproof canopy body is lifted away from the pipe weld, the pneumatic support rod extends and drives the windproof door to rotate and open in the direction away from the pipe. The linkage opening and closing mechanism drives the folding bottom plate to rotate and fold in the opening direction along the hinge point, so that the windproof canopy device is lifted away to the next welding station.

[0015] The structural strength of the windbreak canopy device is set based on the analysis of the slippage of the trench slope, so that the side of the windbreak canopy device can withstand a static load of not less than 60KN and the folding roof can withstand an impact load of not less than 15KN.

[0016] As one of the preferred solutions, the linkage opening and closing mechanism includes:

[0017] The drive wheel is connected to the windshield via a rotating shaft.

[0018] The driven wheel is coaxially connected to a pulley, and the pulley is connected to the folding base plate by a steel wire rope;

[0019] A timing belt connects the drive pulley and the driven pulley;

[0020] When the windshield is rotated to the closed position, the steel wire rope wound on the pulley is released, and the folding base plate automatically unfolds under gravity; when the windshield is rotated to the open position, the steel wire rope wound on the pulley is tensioned, pulling the folding base plate to fold and lift.

[0021] As one of the preferred solutions, the linkage opening and closing mechanism further includes:

[0022] At least one guide pulley, through which the wire rope is connected to the folding base plate.

[0023] As one preferred embodiment, the folding canopy includes a canopy support frame and two sloping roofs symmetrically installed on both sides of the canopy support frame; wherein,

[0024] The two sloping roofs are in the form of a regular trihedral structure. The top frames of the two sloping roofs are respectively connected to the top longitudinal beams on both sides of the roof support frame by hinges, and the bottom frame of the facade is detachably connected to the bottom horizontal beam of the facade of the roof support frame by fixing pins.

[0025] In this structure, each of the inclined roofs has multiple first pin holes on its bottom frame and multiple second pin holes on both sides of the bottom beam of the roof support frame. The positions of the multiple first pin holes correspond to the positions of the multiple second pin holes in the rotation direction of the inclined roof.

[0026] As one of the preferred options, the top of the folding roof is connected to a lifting ring by multiple slings, and an air conditioner and a smoke exhaust fan are installed in the center of the folding roof.

[0027] As one of the preferred solutions, the windproof canopy body is provided with an inward-opening spring-loaded door on at least one side adjacent to the passage opening, and a folding ladder is provided inside the windproof canopy body.

[0028] As one of the preferred solutions, the windproof canopy body includes four side panels that enclose the welding space;

[0029] The side panels on the front and back sides are respectively in the shape of an inner semicircle and a figure eight, and the channel opening is formed in the middle of the inner semicircle and figure eight side panels.

[0030] As one of the preferred solutions, each of the windproof doors includes two symmetrically arranged windproof half-doors, each of the windproof half-doors is connected to each of the linkage opening and closing mechanisms and each of the pneumatic support rods, and the two protective half-doors are respectively provided with semi-circular notches, and the two semi-circular notches can be combined or separated.

[0031] As one preferred embodiment, the guide rollers are positioned at the top and bottom edges of the two windproof half-doors corresponding to the semi-circular notch.

[0032] As one of the preferred options, the two semi-circular notches are provided with arc-shaped adhesive strips that are adapted to their shape and contour.

[0033] Compared with the prior art, this application has the following advantages:

[0034] This application discloses a windproof canopy device for automatic pipeline welding trench operation protection, comprising: a windproof canopy body with openings at the top and bottom, and passageways on opposite sides, the interior being hollow to form a welding space; a folding base plate, movably disposed at the bottom opening of the windproof canopy body and hinged to the windproof canopy body; a folding roof, assembled at the top opening of the windproof canopy body; an escape skylight, installed on at least one side of the folding roof; and windproof doors, disposed on both sides of the windproof canopy body where the passageways are located, and the windproof doors are equipped with guide rollers that can contact and close / open the windproof doors with the pipeline; wherein, the device further includes a linkage opening and closing mechanism and a pneumatic support rod installed on the windproof canopy body, the pneumatic support rod being connected to the windproof door, and the linkage opening and closing mechanism being connected to both the windproof door and the folding base plate; the windproof canopy body is equipped with a folding roof, the escape skylight being installed on at least one side of the folding roof; and a windproof door being installed on both sides of the windproof canopy body. When the shed body is placed towards the pipe weld joint, the windbreak door, under its own weight, drives the linkage opening and closing mechanism to rotate and close towards the pipe, compressing and resetting the pneumatic support rod, and causing the folding base plate to rotate and unfold along the hinge point in the closing direction, sealing the welding space through which the pipe passes. When the windbreak shed body is lifted away from the pipe weld joint, the pneumatic support rod extends, driving the windbreak door to rotate and open away from the pipe, and through the linkage opening and closing mechanism, causing the folding base plate to rotate and fold along the hinge point in the opening direction, allowing the windbreak shed device to be lifted away to the next welding station. The structural strength of the windbreak shed device is set based on the analysis of the slippage of the trench slope, ensuring that the side of the windbreak shed device can withstand a static load of not less than 60KN, and the folding roof can withstand an impact load of not less than 15KN.

[0035] By adopting the technical solution of this application, the automatic synchronous opening and closing of the windbreak door and folding base plate is achieved through pneumatic struts and a linkage opening and closing mechanism. The synchronous operation of the windbreak door and folding base plate via a purely mechanical transmission system avoids the problem of poor operational performance caused by asynchrony between the windbreak door and folding base plate due to changes in the length and tension of the steel wire rope. Furthermore, the automatic opening and closing of this embodiment utilizes gravity and a mechanical transmission mechanism, eliminating the need for additional power sources such as electricity and mechanical drives, reducing energy consumption, maintenance requirements and costs, and lowering operational complexity, system complexity, and failure risk. Simultaneously, operators only need to perform simple lifting or lowering actions to open and close the enclosed pipe space of the windbreak canopy, reducing the workload of operators and accelerating the installation and dismantling speed of the windbreak canopy. In short, it not only achieves lightweight installation and reduces labor intensity but also provides operators with a safer, more convenient, and more efficient operating experience.

[0036] Furthermore, during automated welding of pipelines in trenches, in the event of a slope collapse risk, escape routes can be safely evacuated using ladders inside the shelter. During the hoisting of the windbreak shelter, operators can use the ladders inside to retrieve the hooks, facilitating the hoisting operation. Additionally, the strength of the windbreak shelter is based on analysis of the sliding body of the trench slope; its sides can withstand a static load ≥60KN, and its roof can withstand an impact load ≥15KN, while its weight is less than 1t, reducing the weight of the windbreak shelter. This provides a reliable and stable safety barrier against the risk of trench collapse, reduces labor intensity, ensures safety during trench operations, and improves the efficiency of pipeline construction in trenches. Attached Figure Description

[0037] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application 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.

[0038] Figure 1 This is a front view of the windbreak door of the automatic pipeline welding trench protection device according to an embodiment of this application when it is open;

[0039] Figure 2 This is a front view of the windbreak door of the automatic pipeline welding trench protection device according to another embodiment of this application when it is closed;

[0040] Figure 3 This is a left view of the automatic pipeline welding trench protection device according to another embodiment of this application;

[0041] Figure 4 This is an elevation view of the folding roof described in another embodiment of this application;

[0042] Figure 5 This is a top view of the folding canopy described in another embodiment of this application;

[0043] Figure 6 This is an elevation view of the folded canopy after folding according to another embodiment of this application;

[0044] Figure 7 This is a schematic diagram illustrating the opening principle of the linkage opening and closing mechanism described in another embodiment of this application;

[0045] Figure 8 yes Figure 7 Sectional view along the BB direction.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Escape skylight; 2. Folding roof; 3. Four-limb lifting rings; 4. Smoke exhaust fan; 5. Pneumatic strut; 6. Fixing bolts; 7. Linked opening and closing mechanism; 8. Rotating shaft; 9. Windproof door; 10. Guide pulley; 11. Steel wire rope; 12. Folding base plate; 13. Guide roller; 14. Folding ladder; 15. Pipes; 16. Air conditioner; 17. Left side panel; 18. Front side panel; 19. Roof hinge; 20. Roof support frame; 21. Left sloping roof; 22. Right sloping roof; 23. Fixing pin; 24. Pulley; 25. Driven wheel; 26. Synchronous belt; 27. Transmission wheel; 30. Base plate hinge. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] like Figure 1 and Figure 2 As shown, Figure 1 The image shows a front view of the windbreak door of the automatic welding trench protection device for pipeline 15 of this application when it is open, showing that the closed opening is in the open state. Figure 2 The image shows a front view of the windbreak door of the automatic welding trench protection device for pipeline 15 when closed, indicating that the sealing opening is in a closed state. This application provides a windbreak canopy device for automatic welding trench protection of pipeline 15, comprising: a windbreak canopy body with openings at the top and bottom, and passageways on opposite sides, the interior being hollow to form a welding space; a folding base plate 12, movably disposed at the bottom opening of the windbreak canopy body and hinged to the windbreak canopy body; a folding roof 2, assembled at the top opening of the windbreak canopy body; an escape skylight 1, installed on at least one side of the folding roof 2; and a windbreak door 9, disposed on both sides of the windbreak canopy body where the passageways are located, and the windbreak door 9 is equipped with guide rollers 13 that can contact and close / open the windbreak door 9 with the pipeline 15.

[0050] The device further includes a linkage opening and closing mechanism 7 and a pneumatic support rod 5 installed on the windproof canopy body. The pneumatic support rod 5 is also connected to the windbreak door 9, and the linkage opening and closing mechanism 7 is also connected to the windbreak door 9 and the folding base plate 12 respectively. When the windproof canopy body is placed towards the weld joint of the pipe 15, the windbreak door 9, under the action of its own weight, drives the linkage opening and closing mechanism 7 to rotate and close the windbreak door 9 towards the pipe 15, compressing and resetting the pneumatic support rod 5, and causing the folding base plate 12 to rotate and unfold along the hinge point in the closing direction, sealing the welding space through which the pipe 15 passes. When the windproof canopy body is lifted away from the weld joint of the pipe 15, the pneumatic support rod 5 extends, drives the windbreak door 9 to rotate and open in the direction away from the pipe 15, and drives the linkage opening and closing mechanism 7 to rotate and fold the folding base plate 12 along the hinge point in the opening direction, so that the windproof canopy device is lifted away to the next welding station, completing the protection for trench operations.

[0051] The structural strength of the windbreak canopy device is set based on the analysis of the slippage of the trench slope, so that the side of the windbreak canopy device can withstand a static load of not less than 60KN, and the folding roof can withstand an impact load of not less than 15KN.

[0052] Specifically, the windproof canopy body, serving as the frame and main structure of the entire device, is composed of multiple rectangular steel pipes arranged in a specific shape, providing a hollow welding space. This welding space can accommodate welding personnel, pipes 15 with weld joints, automatic welding equipment for pipes 15, and some supporting components, which are used to support the various pieces of equipment. In some embodiments, a folding ladder 14 is placed within the welding space.

[0053] The top and bottom openings of the windproof canopy body are designed to facilitate the connection of the folding base plate 12 and the folding roof 2. The side passage allows long-distance pipes 15 to extend through, and the passage extends through the bottom of the side panel, that is, it connects with the bottom opening, so that the device can pass through the pipe 15 from top to bottom and finally be located in the pipe trench, and be lifted off the pipe 15 from the weld trench from bottom to top.

[0054] Specifically, the top opening connects to the folding canopy 2, which is used to shield against wind and rain and provide shade. In some embodiments, the folding canopy 2 at the top opening can be folded up when not in use and unfolded to cover the top opening of the windproof canopy body when in use.

[0055] Escape skylights 1 are provided on both sides of the folding roof 2. The escape skylights 1 are respectively located on the left and right sides of the folding roof 2. A folding ladder 14 is installed inside the windproof canopy. Therefore, during the automatic welding construction of the pipeline 15 in the trench, if there is a risk of slope collapse in the trench, the operators can use the folding ladder 14 inside the canopy to open the escape skylights 1 and evacuate safely. In addition, during the hoisting operation of the windproof canopy, the operators can use the ladder inside the canopy to remove the hook, which facilitates the hoisting operation.

[0056] Because the strength of the windbreak is based on the analysis of the sliding body of the trench slope, the sides can withstand a static load of ≥60KN, and the roof can withstand an impact load of ≥15KN. It possesses sufficient protective performance and weighs less than 1 t, enabling the windbreak device to provide safety protection for operations under the trench and achieving lightweight design. In this embodiment, slope sliding body analysis, as a geological engineering technique, can be used to assess and calculate the stability and possible sliding range of the slope under external forces. Therefore, by analyzing the sliding body of the trench slope, the forces applied to the windbreak device under various working conditions can be determined. Based on this, the strength parameters of the windbreak designed ensure that it will not deform or collapse, guaranteeing its reliability and stability under various commonly encountered working conditions, and protecting the safety of workers and equipment in actual use.

[0057] Specifically, the bottom opening connects to the folding base plate 12. When the folding base plate 12 is in the unfolded state, the bottom opening is closed, forming a closed welding space together with the unfolded folding roof 2, the windproof canopy body, and the closed windbreak door 9. This protects the welding equipment and personnel within the welding space under adverse terrain or weather conditions, ensuring welding quality and efficiency. When the folding base plate 12 is in the folded state, the bottom opening is opened, allowing the pipe 15 to exit the welding space from the bottom opening, thus completing the welding protection.

[0058] The system includes windbreak doors 9 on both sides of the windproof canopy, with each door corresponding to one of the two passage openings. Each door 9 has an openable or closable opening, allowing the pipe 15 to pass through both the passage opening and the closed opening of the windbreak door 9 from one direction. The passage outside the closed opening is the normal section, while the passage within the welding space is the section requiring welding. The windbreak doors 9 provide wind, rain, and dust protection, creating a closed and safe working environment during the welding of the pipe 15.

[0059] It is understood that this device is movable and can be flexibly adjusted in position according to construction needs to adapt to changes in different construction sites. When the windbreak door 9 is closed, the inner edge contour of the closed opening fits with the outer edge contour of the pipe 15 and blocks the passage opening on the same side, forming a closed welding space and closing the outer perimeter of the pipe 15. When the device is lifted away, the closed opening opens, the pipe 15 is released from the bottom opening and the passage opening, the pipe 15 is opened, the corresponding pipe 15 welding windproof is completed, and then the device is retracted for use in the next pipe 15 welding joint.

[0060] As an improvement to this embodiment, this application provides a linkage opening and closing mechanism 7 and a pneumatic support rod 5 to automatically adjust the opening degree of the closed opening to complete the opening and closing of the windbreak door 9. Specifically, both the linkage opening and closing mechanism 7 and the pneumatic support rod 5 are installed on the main frame of the windbreak canopy. The linkage opening and closing mechanism 7, located on the main frame of the windbreak canopy, is connected to the windbreak door 9 and the folding base plate 12 respectively. The windbreak door 9 and the folding base plate 12 can move synchronously when the device is placed and lifted by the linkage opening and closing mechanism 7, ensuring convenient operation and spatial sealing. One end of the pneumatic support rod 5 is connected to the front side plate 18, and the other end is connected to the windbreak door 9, providing power to drive the opening and closing of the windbreak door 9.

[0061] Specifically, such as Figure 7 and Figure 8 As shown, Figure 7 This diagram illustrates the opening principle of the linkage opening and closing mechanism 7 of this application. Figure 8 yes Figure 7 A cross-sectional view along the BB direction. The linkage opening and closing mechanism 7 includes: a transmission wheel 27, which is connected to the windshield 9 via a rotating shaft 8; a driven wheel 25, coaxially connected to a pulley 24, which is connected to the folding base plate 12 via a steel wire rope 11; and a synchronous belt 26, which connects the transmission wheel 27 and the driven wheel 25. When the windshield 9 is rotated to the closed position, the steel wire rope 11 wound on the pulley 24 is released, and the folding base plate 12 automatically unfolds under gravity. When the windshield 9 is rotated to the open position, the steel wire rope 11 wound on the pulley 24 is tensioned, pulling the folding base plate 12 to fold and lift.

[0062] In this embodiment, windbreak doors 9 are provided on the front and rear side panels of the windproof canopy body. Rotating shafts 8 are symmetrically fitted at both ends of the same side panel. One end of the rotating shaft 8 fitted on the same side panel is fixed to the windbreak door 9, and the other end is fixedly installed with a synchronous pulley assembly. The synchronous pulley assembly is connected to the folding base plate 12 by a steel wire rope 11. The synchronous pulley assembly includes a drive wheel 27, a synchronous belt 26, and a driven wheel 25 and a pulley 24 coaxially connected. The drive wheel 27 is connected to the driven wheel 25 via the synchronous belt 26, and the pulley 24 is connected to the folding base plate 12, which is hinged to the windproof canopy body.

[0063] In a preferred embodiment, each windbreak 9 includes two symmetrically arranged protective half-doors. Each protective half-door is connected to each of the linkage opening and closing mechanisms 7 and each of the pneumatic support rods 5. Each of the two protective half-doors has a semi-circular notch, which can be combined or separated. In this embodiment, each windbreak 9 consists of two symmetrically arranged protective half-doors, each independently connected to each linkage opening and closing mechanism 7 and each pneumatic support rod 5, achieving synchronous opening and closing of the two protective half-doors. Each protective half-door has a semi-circular notch. When the windbreak 9 is rotated to close, the semi-circular notches of the two protective half-doors combine to form a complete circular closed opening, adapting to the outer wall of the pipe 15. When the windbreak 9 is rotated to open, the semi-circular notches of the two protective half-doors gradually separate, and the windbreak 9 opens.

[0064] Therefore, please continue reading Figure 1 Under the action of the linkage opening and closing mechanism 7, when the windproof canopy is placed on the weld joint of the pipe 15, the windproof door 9 rotates along the rotating shaft 8 in the closing direction (inward) under the action of gravity, and compresses and resets the pneumatic support rod 5. Since the windproof door 9 is fixed at one end of the rotating shaft 8, the rotating shaft 8 will also rotate synchronously. The rotating shaft 8 drives the transmission wheel 27 to rotate, and drives the driven wheel 25 to rotate through the synchronous belt 26. When the driven wheel 25 rotates, the pulley 24 connected to the same shaft will also rotate synchronously. When the pulley 24 rotates, the steel wire rope 11 wound on the pulley 24 and connected to the folding base plate 12 is released. The steel wire rope 11 loosens, so that the folding base plate 12 automatically flattens under the action of gravity. At the same time, the two protective half doors move relative to each other, and the closed opening closes to form a circular closed opening, which fits against the outer circumference of the pipe 15, forming a closed space inside the windproof canopy, achieving the purpose of welding wind protection and safety protection.

[0065] Please continue reading. Figure 2 When the windbreak is lifted from the pipe 15, the pneumatic strut 5 extends and drives the windbreak door 9 to rotate along the pivot 8 in the opening direction (outward). The closed opening opens, releasing the pipe 15. Through the transmission wheel 27 and the synchronous belt 26, the driven wheel 25 and the pulley 24 rotate in the opposite direction, which winds up the steel wire rope 11 of the folding base plate 12. The steel wire rope 11 is tensioned, thereby pulling the folding base plate 12 to fold and lift along the hinge point, so that the windbreak is smoothly lifted off the pipe 15.

[0066] It is understandable that under external pressure, the pneumatic strut 5 will push the piston back into the cylinder, and the piston rod will retract. When the gas is compressed, the gas pressure inside the cylinder increases, and the gas pressure will push the piston outward, causing the piston rod to extend. In this embodiment, when the windproof canopy is placed on the weld joint of the pipe 15, the windshield 9 naturally droops under the action of gravity and the guide roller 13, and its weight presses on the pneumatic strut 5. At this time, the thrust of the pneumatic strut 5 is insufficient to overcome the reaction force generated by the gravity of the windshield 9, the piston rod stroke of the pneumatic strut 5 is compressed, and the windshield 9 closes. During the upward lifting process, the entire device is lifted, reducing the force of the windshield 9 on the pneumatic strut 5. The elastic force (or gas pressure) inside the pneumatic strut 5 is released, the thrust overcomes the weight of the windshield 9, and pushes the windshield 9 to rotate outward along the rotating shaft 8.

[0067] Thus, the pneumatic strut 5 and the linkage opening and closing mechanism 7 enable the automatic synchronous opening and closing of the windbreak door 9 and the folding base plate 12. Through a purely mechanical transmission system, the synchronous operation of the windbreak door 9 and the folding base plate 12 avoids the problem of poor operational performance caused by asynchrony between the windbreak door 9 and the folding base plate 12 due to changes in the length and tension of the wire rope 11. Furthermore, the automatic opening and closing mechanism of this embodiment utilizes gravity and a mechanical transmission mechanism, eliminating the need for additional power sources such as electricity and mechanical drives, reducing energy consumption, maintenance requirements and costs, and lowering operational complexity, system complexity, and failure risk. Moreover, operators only need to perform simple lifting or lowering actions to complete the opening and closing of the windbreak, reducing their workload and accelerating the installation and dismantling of the windbreak. Therefore, it not only improves the overall performance and reliability of the system but also provides operators with a simpler and more efficient operating experience.

[0068] In summary, this application plays an important role in wind protection and ensuring the safety of operators and equipment during automatic pipeline welding construction. For different soil and rock types and different trench depths and slope slippage, it ensures the load-bearing capacity and safety performance of the windbreak while meeting the needs of mechanized construction of automatic pipeline welding, improving the working environment conditions in the trench, and increasing the efficiency of pipeline welding construction in the trench. As a mobile safety barrier, it provides a guarantee for accelerating the application of automatic pipeline welding in mountainous and hilly areas.

[0069] In a further technical solution, there are two folding base plates 12, which are symmetrically arranged on the left and right sides of the bottom opening of the windbreak body. When the folding base plate 12 is unfolded, its width is the same as the bottom width of the windbreak body. The sum of the lengths of the two folding base plates 12 when unfolded is equal to the bottom length of the windbreak body, so that the bottom opening is sealed when unfolded.

[0070] Furthermore, please refer to Figure 3 , Figure 3Left view of a protective device for working under the automatic welding trench of pipeline 15. The windproof canopy is formed by assembling the four side panels around its main body, as exemplified, such as... Figure 1 The direction shown is the forward view, including a square frame structure formed by the combination of front side panel 18, rear side panel, left side panel 17, and right side panel. Front side panel 18 and rear side panel, along with left side panel 17 and right side panel, are all frame structures, and are fastened together at the side edges by multiple sets of connecting bolts to form a regular tetrahedron.

[0071] Above the tetrahedron, the bottom frame of the folding canopy 2 is fastened to the top of the square frame structure by fixing bolts 6. At the bottom of the tetrahedron, the folding base plate 12 is connected to the lower frame of the left side plate 17 and the right side plate by base plate hinges 30. The front side plate 18 and the rear side plate are in the shape of an inner semi-circle V-shape, and are made of welded rectangular square tubes. The notch below the top forms a passage, and the top two sides of the rectangular square tube are welded with outer sleeves. The rotating shaft 8 is installed inside the outer sleeves. One end of the rotating shaft 8 is fixed to the flange on the windshield 9, and the other end is fixed to the drive wheel 27 with a flat key. Above the rotating shaft 8, the half-shaft of the driven wheel 25 and the pulley 24 is perpendicular to the front side plate 18 and the rear side plate, and is fixed to the rectangular square tube with adjustable bolts to form a synchronous belt 26 and pulley 24 combination. The pulley 24 is connected to the folding base plate 12 by steel wire rope 11, and a guide pulley 10 is welded above the folding base plate 12.

[0072] From this, we can see Figure 2 When all components are installed and the windbreak door 9 is closed, a sealed body that can be hoisted and moved can be formed. After disassembly, it can be divided into three units: the folding roof, the four side panels that make up the windbreak body, and the folding bottom plate 12.

[0073] In some embodiments, the wire rope 11 is connected to each of the folding base plates 12 via each of the guide pulleys 10. In this embodiment, the wire rope 11 can be relatively long, and the guide pulleys 10 can guide the movement direction of the wire rope 11, ensuring that it moves along a predetermined path, so as to prevent the wire rope 11 from bending, tangling or deviating from the track during release and winding, so as to keep it stable and controlled during transmission, and ensure the smooth unfolding and folding of the folding base plate 12.

[0074] In some embodiments, there may be multiple guide pulleys 10, which are spaced apart along the height direction of the front side plate 18 on the pipe 15 of the windbreak body and fixed in designated positions by fixing brackets or bolts. The spacing can be set according to the length and weight of the wire rope 11 to provide support. Figure 1 and Figure 2 As shown, two guide pulleys 10 are provided, located near the transmission wheel 27 and near the folding base plate 12, respectively.

[0075] In some embodiments, such as Figures 4-6 As shown, Figure 4 This is an elevation view of folding roof 2. Figure 5 This is a top view of folding roof 2. Figure 6 This is an elevation view of the folded roof 2 after folding. The folded roof 2 includes a roof support frame 20 and two sloping roofs symmetrically installed on the left and right sides of the roof support frame 20. The two sloping roofs are trihedral in structure, with their top frames hinged to the top longitudinal beams on both sides of the roof support frame 20, and their bottom frames detachably connected to the bottom horizontal beam of the roof support frame 20 via fixing pins 23. Each sloping roof has multiple first pin holes on its bottom frame, and multiple second pin holes are provided on both sides of the bottom horizontal beam of the roof support frame 20. The positions of the multiple first pin holes correspond to the positions of the multiple second pin holes in the rotation direction of the sloping roof.

[0076] Specifically, the folding canopy 2 is a trapezoidal frame structure, with high-strength covering materials such as windproof canopy fabric and fiber composite board connected to the frame structure. The trapezoidal frame structure consists of hinges, a canopy support frame 20, a left sloping top 21, a right sloping top 22, and fixing pins 23. The canopy support frame 20 is located at the center of the canopy, and the left and right sloping tops 21 and 22 are regular trihedrons, symmetrical to the canopy support frame 20. In this embodiment, the canopy support frame 20 includes two top crossbeams, two bottom crossbeams, two top longitudinal beams, and two bottom longitudinal beams. The length of the top crossbeams is less than the length of the bottom crossbeams, and a total of eight beams are connected to form the second trapezoidal frame structure.

[0077] The top frames of the left sloping roof 21 and the right sloping roof 22 are connected to the top longitudinal beams on both sides of the roof support frame 20 via roof hinges 19. The side frames of the facade are fixed to the facade of the roof support frame 20 using fixing pins 23. When the fixing pins 23 are removed, the folded roof 2 is lifted by the four-limb lifting rings 3, and the left sloping roof 21 and the right sloping roof 22 fall freely. Then, the fixing pins 23 lock the left sloping roof 21, the right sloping roof 22, and the roof support frame 20, which can effectively reduce the width of the roof facade, reduce the volume of the roof, and facilitate on-site disassembly, assembly, and transportation.

[0078] Specifically, taking the left sloping top 21 as an example, the right sloping top 22 can be referenced accordingly. The regular trihedral structure includes an inclined surface and a first vertical surface and a second vertical surface connected to the top and bottom edges of the inclined surface, respectively. The first vertical surface extends along the height direction, and the second vertical surface extends along the horizontal direction, and the two are perpendicular to each other. In some embodiments, the length of the first vertical surface may be greater than, less than, or equal to the length of the second vertical surface. The top edge of the first vertical surface can be connected to the top longitudinal beam on the left side of the roof support frame 20 through the roof hinge 19, and the inclined surface is connected to the first vertical surface, falling freely towards the central axis of the trapezoidal frame structure under the action of gravity; or the top edge of the inclined surface can be connected to the top longitudinal beam on the left side of the roof support frame 20 through the roof hinge 19, and the first vertical surface is connected to the inclined surface, falling freely towards the central axis of the trapezoidal frame structure under the action of gravity.

[0079] The second vertical surface has two first pin holes along its length, and the bottom crossbeam of the roof support frame 20 has two second pin holes along its length. In normal use, the first pin hole on the right end and the second pin hole on the left end are positioned opposite each other, and the fixing pin 23 fixes the left inclined top 21 in this position. At this time, the inclined surface of the regular trihedron is tilted upwards, and the two vertical surfaces are located at the edge of the roof support frame 20.

[0080] During on-site handling and long-distance transportation, when the fixing pin 23 is removed, the left inclined top 21 loses its fixation and will fall freely under the action of gravity until it reaches the lowest point. At this time, the first pin hole on the left end and the second pin hole on the right end are in opposite positions. The fixing pin 23 is reinserted to lock the left inclined top 21 and the canopy support frame 20 in a new position. At this time, the inclined surface of the regular trihedron is tilted downwards, and the two vertical surfaces are located within the canopy support frame 20.

[0081] Therefore, by simply removing and re-inserting the pins to control the change of two positions, the volume of the windbreak canopy can be reduced, making it easy to store when not in use and saving space. During relocation, the transport volume of the windbreak canopy is effectively reduced, facilitating on-site disassembly, assembly, and transportation.

[0082] In a further technical solution, a four-limb lifting ring 3 is connected to the top of the folding roof 2 via multiple slings. An air conditioner 16 and a smoke exhaust fan 4 are installed in the center of the folding roof 2. At least one side of the windproof canopy body adjacent to the passageway is provided with an inward-opening spring-loaded door. In this embodiment, four nylon slings are hung from the four-limb lifting ring 3 and hinged to the folding roof for hoisting and moving the entire windproof canopy structure. The roof-mounted air conditioner 16 is installed in the center of the folding roof 2 to regulate the temperature inside the windproof canopy. The smoke exhaust fan 4 is symmetrically installed on both sides of the roof-mounted air conditioner 16 to exhaust fumes and harmful gases generated during welding. The passageway and the windbreak door 9 are located on the front and rear side panels, while the inward-opening spring-loaded door is installed on the left side panel 17 and / or the right side panel, facilitating the welder's entry and exit from the welding space.

[0083] In a preferred embodiment, guide rollers 13 are provided at the top and bottom edges of the two protective half-doors corresponding to the semi-circular notch. In conjunction with the above embodiment, the two protective half-doors move towards each other to close the closure, and move outwards in opposite directions to open the closure. During the closing process, the sides of the two protective half-doors that are close to each other are aligned. Therefore, the guide rollers 13 are provided during the contact process of the two protective half-doors to reduce jamming or interference caused by asymmetrical movement during the approaching movement of the windshield 9, ensuring smooth and stable opening and closing of the windshield 9.

[0084] In another preferred embodiment, an arc-shaped adhesive strip adapted to the shape and contour of each of the two semi-circular notches is provided. In this embodiment, after the two protective half-doors rotate in the closing direction along the linkage opening and closing mechanism 7 and move closer to each other to close the sealing opening, the arc-shaped adhesive strip adheres to the outer circumference of the pipe 15, which not only provides cushioning and reduces direct metal contact, but also effectively seals the sealing opening, ensuring the sealing and protection effect of the welding space and preventing external wind, sand, dust and other contaminants from entering the welding space during the welding process.

[0085] In summary, combining Figures 1-8 This application embodiment is a modular frame structure, including an escape skylight 1, a folding roof 2, four-limb lifting rings 3, a smoke exhaust fan 4, pneumatic support rods 5, a linkage opening and closing mechanism 7, fixing bolts 6, a rotating shaft 8, a windproof door 9, guide pulleys 10, steel wire ropes 11, a folding base plate 12, guide rollers 13, a folding ladder 14, steel pipes, a roof-mounted air conditioner 16, left and right side plates, front and rear side plates, and connecting bolts, etc. Its usage method is integrated with the system of mechanized automatic welding construction of pipeline 15, thereby enabling:

[0086] During the hoisting process of the windbreak canopy, the windbreak canopy's own weight and the rebound force of the pneumatic support rod 5 are used to drive the windbreak door 9 and the folding base plate 12 to open and close in conjunction, which changes the manual operation method of the windbreak door 9 and the folding base plate 12, improves work efficiency, and reduces the intensity of manual labor.

[0087] After disassembly, the folding canopy 2 automatically folds by gravity, which can effectively reduce the volume of each component and meet the needs of convenient on-site installation, handling and long-distance transportation of the windproof canopy.

[0088] In the event of a landslide, the escape skylight 1 provides a safe exit for operators. At the same time, when hoisting the windproof canopy, construction workers can use the folding ladder 14 to remove the lifting hook through the escape skylight 1, which facilitates the hoisting operation of the windproof canopy.

[0089] During the sweltering heat and freezing cold of winter, the air conditioning system installed on the roof can prevent the airflow from affecting welding, greatly improve the working environment in the trench, and enable all-weather construction.

[0090] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0091] It should also be noted that, in this document, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device.

[0092] The foregoing has provided a detailed description of a windproof canopy device for automatic pipeline welding trench operations. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of aiding understanding this application, and the content of this specification should not be construed as limiting this application. Furthermore, those skilled in the art will recognize that various modifications may be made to the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all possible implementation methods here, but any obvious variations or modifications derived therefrom remain within the protection scope of this application.

Claims

1. A windproof canopy device for protecting workers operating in an automatic pipeline welding trench, characterized in that, include: The windproof canopy body has openings at the top and bottom, and passageways on opposite sides, with a hollow interior forming a welding space. A folding base plate is movably installed at the bottom opening of the windbreak canopy body and is hinged to the windbreak canopy body. A folding canopy is fitted into the top opening of the windbreak canopy body; An escape skylight is installed on at least one side of the folding roof; A windbreak door is provided on both sides of the windproof canopy body where the passage opening is located, and the windbreak door is equipped with guide rollers that contact the pipe to close and open the windbreak door; The device also includes a linkage opening and closing mechanism and a pneumatic support rod installed on the windproof canopy body. The pneumatic support rod is also connected to the windproof door, and the linkage opening and closing mechanism is also connected to the windproof door and the folding base plate respectively. When the windproof canopy body is placed toward the pipe weld joint, the windbreak door, under the action of the windproof canopy's own weight, drives the linkage opening and closing mechanism to rotate and close the windbreak door toward the pipe, compresses and resets the pneumatic support rod, and causes the folding bottom plate to rotate and unfold along the hinge point toward the closing direction, sealing the welding space through which the pipe passes. When the windproof canopy body is lifted away from the pipe weld, the pneumatic support rod extends and drives the windproof door to rotate and open in the direction away from the pipe. The linkage opening and closing mechanism drives the folding bottom plate to rotate and fold in the opening direction along the hinge point, so that the windproof canopy device is lifted away to the next welding station. The structural strength of the windbreak canopy device is set based on the analysis of the slippage of the trench slope, so that the side of the windbreak canopy device can withstand a static load of not less than 60KN, and the folding roof can withstand an impact load of not less than 15KN.

2. The windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, The linkage opening and closing mechanism includes: The drive wheel is connected to the windshield via a rotating shaft. The driven wheel is coaxially connected to a pulley, and the pulley is connected to the folding base plate by a steel wire rope; A timing belt connects the drive pulley and the driven pulley; When the windshield is rotated to the closed position, the steel wire rope wound on the pulley is in a released state, and the folding base plate automatically unfolds under the action of gravity; when the windshield is rotated to the open position, the steel wire rope wound on the pulley is in a taut state, pulling the folding base plate to fold and lift.

3. The windproof canopy device for automatic pipeline welding trench operation protection according to claim 2, characterized in that, The linkage opening and closing mechanism also includes: At least one guide pulley, through which the wire rope is connected to the folding base plate.

4. The windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, The folding canopy includes a canopy support frame and two sloping roofs symmetrically installed on both sides of the canopy support frame; wherein, The two sloping roofs are in the form of a regular trihedral structure. The top frames of the two sloping roofs are respectively connected to the top longitudinal beams on both sides of the roof support frame by hinges, and the bottom frame of the facade is detachably connected to the bottom horizontal beam of the facade of the roof support frame by fixing pins. In this structure, each of the inclined roofs has multiple first pin holes on its bottom frame and multiple second pin holes on both sides of the bottom beam of the roof support frame. The positions of the multiple first pin holes correspond to the positions of the multiple second pin holes in the rotation direction of the inclined roof.

5. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, The folding roof is connected to a hanging ring by multiple slings, and an air conditioner and a smoke exhaust fan are installed in the center of the folding roof.

6. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, The windproof canopy body is provided with an inward-opening spring-loaded door on at least one side adjacent to the passage opening, and a folding ladder is provided inside the windproof canopy body.

7. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, The windproof canopy body includes four side panels that enclose the welding space; The side panels on the front and back sides are respectively in the shape of an inner semicircle and a figure eight, and the channel opening is formed in the middle of the inner semicircle and figure eight side panels.

8. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 1, characterized in that, Each windproof door includes two symmetrically arranged windproof half-doors. Each windproof half-door is connected to each of the linkage opening and closing mechanisms and each of the pneumatic support rods. The two windproof half-doors are respectively provided with semi-circular notches, and the two semi-circular notches can be combined or separated.

9. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 8, characterized in that, The guide rollers are positioned at the top and bottom edges of the two protective half-doors corresponding to the semi-circular notch.

10. A windproof canopy device for automatic pipeline welding trench operation protection according to claim 8, characterized in that, The two semi-circular notches are provided with arc-shaped adhesive strips that are adapted to their shape and contour.

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