Protective device for pipeline welding seam construction
By designing protective devices to cover the welding area and shield the door opening gap, the impact of environmental factors on welding quality and construction period is resolved, achieving efficient and safe welding results.
Patent Information
- Application Number
- CN202521726992.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2035-08-14
AI Technical Summary
Existing pipeline welding construction is easily affected by environmental factors, resulting in weld quality defects and extended construction period. In particular, there is a risk of landslide and collapse when constructing in strong winds, rainy weather, deep foundation pits, and steep slopes.
A protective device is designed, which includes a building body and a shielding mechanism. The building body covers the welding area, and the shielding mechanism shields the gap between the door opening and the pipeline. The side walls of the building body block the lateral wind and landslide risks, providing lateral shielding protection.
Effectively avoid the impact of external environmental factors on welding quality, improve welding quality and efficiency, reduce the risk of landslide and collapse, and ensure smooth construction.
Smart Images

Figure CN223368541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding tooling, in particular to a protective device for pipeline weld construction. Background Art
[0002] The welding of multi-segment pipe sections is a crucial step in the construction of long-distance pipelines. Inspections of existing pipe sections have revealed frequent quality defects in the girth welds, impacting the pass rate. Furthermore, weld rework and repairs require significant time delays. Investigations and analysis have shown that environmental factors in the construction area are a significant contributor to girth weld quality defects and the overall impact on the project schedule. For example, strong winds directly increase the probability of porosity defects in girth welds. Rainy weather also directly impacts welding, requiring work stoppages. Furthermore, for pipeline welding in deep foundation pits and on steep slopes, construction workers must also be aware of risks such as landslides and collapses, which can impact welding quality and efficiency, and thus the overall project schedule. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art that the existing pipeline welding construction is greatly affected by environmental factors, which affects the welding quality and the overall construction period, and to provide a protective device for pipeline weld construction.
[0004] The utility model provides a protection device for pipeline welding construction, comprising:
[0005] A room body, the room body comprising end walls, side walls and a roof, the end walls being provided with door openings, two door openings being arranged opposite to each other to form a limiting passage, the width of the door openings being greater than the diameter of the pipe to be welded;
[0006] A shielding mechanism is connected to the room body and can shield the limiting channel.
[0007] The utility model provides a protective device for pipeline welding construction, which can effectively avoid the influence of external environmental factors on the welding quality of the weld by shielding the welding area through the building body, thereby improving the welding quality and welding efficiency. At the same time, the shielding mechanism can shield the door opening, thereby shielding the gap between the door opening and the pipeline, thereby improving the protection effect and making the door opening adaptable to being installed across pipelines of different diameters. In addition, the side walls of the building body block the lateral sides of the pipeline, thereby providing a lateral shielding and protective effect for the welding area, thereby avoiding the risks of landslide, collapse, etc. in welding construction in deep foundation pits and steep slopes.
[0008] Preferably, the end wall is provided with a ventilation mechanism, and the ventilation mechanism is located above the door opening.
[0009] Preferably, a hanging lug is provided on the top of the room body.
[0010] Preferably, the roof includes two top plates, and the two top plates are arranged obliquely on both sides of the axial direction of the limiting channel.
[0011] Preferably, a plurality of supporting legs are provided at the bottom of the room body.
[0012] Preferably, the housing body comprises a color steel plate structure.
[0013] Preferably, an operating platform is connected to the room.
[0014] Preferably, the shielding mechanism comprises a shielding curtain, and the shielding curtain is provided with a through hole adapted to the pipe.
[0015] Preferably, the shielding curtain comprises a left curtain and a right curtain, and the left curtain and the right curtain are detachably connected via a connecting piece.
[0016] Preferably, a roller mechanism is provided on the room body, the roller mechanism comprises a rotating shaft and a driving mechanism, and the shielding curtain is connected to the roller mechanism.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The utility model provides a protective device for pipeline welding construction. By shielding the welding area with the building body, it can effectively prevent the influence of external environmental factors on the welding quality of the weld, thereby improving the welding quality and welding efficiency;
[0019] 2. The utility model provides a protective device for pipeline welding construction, which shields the door opening through a shielding mechanism, and can shield the gap between the door opening and the pipeline, thereby improving the protective effect;
[0020] 3. The utility model provides a protective device for pipeline welding construction, which shields the door opening through a shielding mechanism, so that the door opening can be adapted to be installed across pipelines of different diameters;
[0021] 4. The utility model provides a protective device for pipeline welding construction, which blocks the pipeline on both sides through the side walls of the building, and can provide lateral shielding and protection for the welding area, avoiding the impact of risks such as landslides and collapses on welding construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a structural schematic diagram of a protective device for pipeline weld construction (shielding mechanism retracted) according to Example 1.
[0023] Figure 2 This is a front view of a protective device for pipeline welding construction according to Example 1 (with the shielding mechanism retracted).
[0024] Figure 3This is a diagram showing the usage status of a protective device for pipeline weld construction according to Example 1.
[0025] Figure 4 This is a structural schematic diagram of a protective device for pipeline weld construction (shielding mechanism in use) according to Example 1.
[0026] Figure 5 This is a schematic diagram of the internal structure of a protective device for pipeline weld construction in Example 1.
[0027] Markings in the figure:
[0028] 1-room body, 11-end wall, 12-side wall, 13-roof, 131-top plate, 14-doorway, 2-limiting channel, 3-blocking curtain, 31-left curtain, 32-right curtain, 33-through hole, 34-connecting part, 4-ventilation mechanism, 5-hanging ear, 6-support foot, 7-operating platform, 8-rolling mechanism, 81-rotating shaft, 82-driving mechanism. DETAILED DESCRIPTION
[0029] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.
[0030] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms "upper," "lower," "left," "right," "inside," "outside," and so on, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the products / devices / apparatuses of the present invention are placed when they are normally used. These terms of directions or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians. They do not indicate or imply that a particular device / component / element must have a specific direction or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.
[0031] Furthermore, the use of terms such as "vertical" and "parallel" does not necessarily require the corresponding device / component / element to be absolutely vertical or parallel. Instead, they may be slightly tilted or have deviations, as long as they do not affect the normal function of the relevant components. This can be simplified to mean that the corresponding device / component / element, when set in a "vertical" or "parallel" orientation, can have an error / deviation of ±10% relative to the corresponding orientation, more preferably within an error / deviation of ±8%, more preferably within an error / deviation of ±6%, more preferably within an error / deviation of ±5%, and more preferably within an error / deviation of ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present invention.
[0032] In addition, in the description of the embodiments of the present invention, "a plurality" or "several" means at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, or even more than 9.
[0033] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified, defined, or limited, the terms "disposed," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welded, riveted, bolted, threaded, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communicative; they may be direct, indirect via an intermediate medium, or internally connected between two components.
[0034] Example 1
[0035] like Figure 1-Figure 5 As shown, a protective device for pipeline welding construction includes a room body 1 and a shielding mechanism. The room body 1 includes two end walls 11, two side walls 12 and a roof 13. The two end walls 11 are respectively provided with door openings 14. The two door openings 14 are arranged opposite to each other to form a limiting channel 2. The shielding mechanism is connected to the room body 1 and can shield the limiting channel 2.
[0036] like Figure 3 As shown, the house body 1 is used to span the pipeline to be welded through the doorway 14 to provide horizontal and vertical protection for the welding area to prevent the welding area from being affected by horizontal wind, vertical wind and the risk of slope collapse. The end wall 11 is a wall panel perpendicular to the axis of the pipeline, the side wall 12 is a wall panel parallel to the axis of the pipeline, and the roof 13 is a structural panel connecting the end wall 11 and the side wall 12.
[0037] In one or several embodiments, the width of the door opening 14 can be set to be larger than the diameter of the pipe to be welded, and the height of the door opening 14 can be set to be larger than the maximum distance between the top surface of the on-site pipe and the ground, so that the house body 1 can be smoothly installed across the welding area of the pipe, and a gap space can be formed between the door opening 14 and the pipe to facilitate construction workers to enter and exit the house body 1.
[0038] In an optional embodiment, the width of the door opening 14 can be set to be 30-50 cm larger than the diameter of the pipe, so as to form sufficient gap space on both sides of the pipe for construction workers to enter and exit the room 1; the height of the door opening 14 can be set to be 10-30 cm larger than the maximum distance between the top surface of the on-site pipe and the ground, so as to facilitate the room 1 to be able to smoothly span the welding areas of pipe sections at different positions.
[0039] In an optional embodiment, the door opening 14 may be rectangular.
[0040] In an optional embodiment, if Figure 1-Figure 2 As shown, the top of the door opening 14 can be set to be arc-shaped, which can cooperate with the outer wall of the pipeline, reduce the size of the gap space formed between the door opening 14 and the pipeline, and reduce the longitudinal wind entering the welding area through the door opening 14.
[0041] In one or more embodiments, Figure 2 As shown, the end wall 11 is provided with a ventilation mechanism 4 , which is located above the door opening 14 , so as to ensure the safety of the construction workers in the room 1 through the ventilation mechanism 4 arranged at a higher position.
[0042] In an optional embodiment, the ventilation mechanism 4 may be an exhaust fan, which is provided above the door opening 14 , so as to ensure normal breathing for construction workers while having little impact on the pipeline welding area.
[0043] In one or more embodiments, Figure 1 As shown, a lifting lug 5 is provided on the top of the building body 1, and the lifting lug 5 is used to cooperate with a lifting mechanism such as a crane to realize the overall movement and spanning setting of the building body 1.
[0044] In an optional embodiment, the hanging ears 5 can be distributed at the four corners of the top of the room body 1.
[0045] In one or more embodiments, Figure 2 As shown, the roof 13 includes two top plates 131, which are inclined on both sides of the axial direction of the limiting channel 2 to form a roof 13 with an inclined top surface, which can guide rainwater and objects falling on steep slopes, further improving the protection effect of the house body 1.
[0046] In an optional embodiment, the two top plates 131 can be symmetrically inclined relative to the axial direction of the limiting channel 2.
[0047] In an optional embodiment, the two top plates 131 can be tilted relative to the axial direction of the limiting channel 2 but at different inclination angles, and are connected by a vertical plate body with a transparent area located between the two top plates 131 to improve the lighting inside the room 1 and facilitate high-quality and efficient construction by construction workers.
[0048] In one or several embodiments, a plurality of supporting legs 6 may be provided at the bottom of the house body 1 to raise the height of the house body 1 so that the house body 1 can be placed stably on an uneven ground and gaps can be formed between adjacent supporting legs 6 to facilitate the drainage of rainwater, debris, etc. from the house body 1.
[0049] In an optional embodiment, if Figure 1 As shown, the supporting feet 6 can be distributed at the bottom ends of the side wall 12 close to the end wall 11, the bottom ends of the end wall 11 close to the side wall 12, and the bottom end corners of the end wall 11 close to the door opening 14.
[0050] In an optional embodiment, the support leg 6 can be a steel block, an iron block or a finished support leg with adjustable height, and can be welded or threaded to the house body 1.
[0051] In one or several embodiments, the house body 1 includes color steel plate structural parts, which are easy to prepare, have high structural strength, are lightweight, and are easy to move. The color steel plates can be provided with interlayers according to actual conditions to further improve the protective effect of the house body 1.
[0052] In an optional embodiment, the end wall 11, side wall 12 and top plate 131 can be separately prepared color steel plates, and the top of the house body 1 can be covered with a waterproof cloth to ensure the overall rainproof effect of the house body 1, so as to enable the relevant welding construction of the pipeline to proceed smoothly on rainy days.
[0053] In one or more embodiments, Figure 5 As shown, an operating platform 7 is connected to the room body 1, so that construction workers can place welding tools on the operating platform 7 to facilitate related construction operations.
[0054] In an optional embodiment, the operating platform 7 can be connected to the inner wall of the side wall 12 via a hinge, and can be flipped to fit the side wall 12 when not in use, so as to prevent the operating platform 7 from affecting the movement of construction workers in the room 1.
[0055] The shielding mechanism is used to shield the gap space between the door opening 14 and the pipeline to further ensure the overall protective effect of the protective device.
[0056] In one or more embodiments, Figure 4 As shown, the shielding mechanism includes a shielding curtain 3, and the shielding curtain 3 is provided with a through hole 33 adapted to the pipeline.
[0057] In an optional embodiment, the shielding curtain 3 can be a structural member made of waterproof and windproof materials such as Oxford cloth, nylon cloth, PVC coated cloth, canvas, waterproof polyester fiber cloth, etc. It has flexible characteristics and can be attached to the surface of the pipe to cover the gap space between the door opening 14 and the pipe, thereby improving the protection effect.
[0058] In an optional embodiment, the through hole 33 is a circular hole arranged on the shielding curtain 3 to match the shape of the pipe. A wood ear-shaped shielding curtain 3 can be additionally arranged around the inner circumference of the through hole 33 to fit on the pipe, thereby maximizing the protective effect on the gap space between the pipe and the door opening 14.
[0059] In one or more embodiments, the shielding curtain 3 may include a left curtain 31 and a right curtain 32 , and the left curtain 31 and the right curtain 32 are detachably connected via a connector 34 .
[0060] In an optional embodiment, the left curtain 31 and the right curtain 32 may be respectively provided with a semicircular notch, so that a circular through hole 33 is formed after the left curtain 31 and the right curtain 32 are connected.
[0061] In an optional embodiment, the connecting member 34 can be a rope, zipper or button structure, which is easy to use.
[0062] In one or more embodiments, Figure 5 As shown, a roller mechanism 8 is provided on the room body 1, and the roller mechanism 8 includes a rotating shaft 81 and a driving mechanism 82. The shielding curtain 3 is connected to the roller mechanism 8, so that the rotating shaft 81 is driven to rotate by the driving mechanism 82, and the shielding curtain 3 can be rolled up and stored, which is convenient for the use of the protective device in different environments.
[0063] In an optional embodiment, the driving mechanism 82 may be a motor.
[0064] In an optional embodiment, the scroll mechanism 8 can be arranged above the door opening 14 in the room body 1.
[0065] The present embodiment is a protective device for pipeline welding construction. When in use, the room body 1 is lifted by a crane and placed across the pipeline, so that the pipeline passes through the limiting channel 2. The construction personnel enter the room body 1 from the gap between the pipeline and the door opening 14 according to the actual situation to perform welding construction. The room body 1 provides windproof, lateral collapse-proof and other protective effects on the pipeline, thereby avoiding the welding construction process from being affected by environmental factors, and improving welding quality and welding efficiency. At the same time, the construction personnel lower the shielding curtain 3 according to the ambient wind conditions, so that the shielding curtain 3 shields the gap between the pipeline and the door opening 14, so that the welding process will not be affected by the longitudinal wind force of the pipeline.
[0066] A protective device for pipeline weld construction in this embodiment can effectively avoid the influence of external environmental factors on the welding quality of the weld by shielding the welding area through the house body 1, thereby improving the welding quality and welding efficiency. At the same time, the door opening 14 is shielded by the shielding mechanism, and the gap between the door opening 14 and the pipeline can be shielded, which can improve the protection effect and enable the door opening 14 to be adapted to be installed across pipelines of different diameters. In addition, the side walls 12 of the house body 1 block the lateral sides of the pipeline, which can provide a lateral shielding and protective effect on the welding area, thereby avoiding the influence of landslides and risks in deep foundation pits, steep slope sections, etc. on welding construction.
[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A protective device for pipeline welding construction, characterized in that: include: A room body (1), the room body (1) comprising an end wall (11), a side wall (12) and a roof (13), the end wall (11) being provided with a door opening (14), two door openings (14) being arranged opposite to each other to form a limiting passage (2), the width of the door opening (14) being greater than the diameter of the pipe to be welded; A shielding mechanism is connected to the room body (1), and the shielding mechanism can shield the limiting channel (2).
2. A protective device for pipeline welding construction according to claim 1, characterized in that: The end wall (11) is provided with a ventilation mechanism (4), and the ventilation mechanism (4) is located above the door opening (14).
3. A protective device for pipeline welding construction according to claim 1, characterized in that: The top of the housing (1) is provided with a hanging lug (5).
4. A protective device for pipeline welding construction according to claim 1, characterized in that: The roof (13) comprises two top plates (131), and the two top plates (131) are arranged obliquely on both sides of the axial direction of the limiting channel (2).
5. The protective device for pipeline welding construction according to claim 1, characterized in that: A plurality of supporting legs (6) are provided at the bottom of the housing (1).
6. A protection device for pipeline welding construction according to claim 1, characterized in that: The building body (1) comprises a color steel plate structural member.
7. A protection device for pipeline welding construction according to claim 1, characterized in that: An operating platform (7) is connected to the room body (1).
8. A protection device for pipeline welding construction according to any one of claims 1 to 7, characterized in that: The shielding mechanism comprises a shielding curtain (3), and the shielding curtain (3) is provided with a through hole (33) adapted to the pipeline.
9. A protection device for pipeline welding construction according to claim 8, characterized in that: The shielding curtain (3) comprises a left curtain (31) and a right curtain (32), and the left curtain (31) and the right curtain (32) are detachably connected via a connecting piece (34).
10. A protection device for pipeline welding construction according to claim 9, characterized in that: The room body (1) is provided with a reel mechanism (8), the reel mechanism (8) comprising a rotating shaft (81) and a driving mechanism (82), and the shielding curtain (3) is connected to the reel mechanism (8).