Fixing traction device in pipeline
By designing a fixed traction device for pipes, the problems of low traction efficiency, inconvenient operation and damage to pipes in the prior art are solved, and efficient, safe and convenient traction effects are achieved.
Patent Information
- Application Number
- CN202422334850.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The prior art methods used for pipeline traction in the construction of chemical equipment are inefficient and inconvenient to operate, which easily cause damage to the pipeline, and lack construction quality and safety.
A fixed traction device inside the pipe is designed, including a hollow tubular central shaft, a enclosure device, a fixing device, a drive device and a traction suspension ring. The device uses a screw and a screw nut to increase the tightening force by using a rotary traction ring. It is suitable for pipes of different lengths and is easy to disassemble.
The device is flexible in operation and is suitable for narrow spaces, avoids welding damage to the pipeline, improves traction efficiency and safety, and reduces labor intensity and labor costs.
Smart Images
Figure CN223047142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a traction device, in particular to a pipeline internal fixed traction device. Background Art
[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.
[0003] During the construction of chemical plants, the public pipe gallery is a multi-layer structure with a compact layout. The pipes on each layer are of different specifications and close to each other. Most of the pipes cannot be installed by vertical lifting with a crane. They can only be installed by setting lifting points on both sides of the pipe gallery and pulling the pipes to a specific location. The existing traction methods are inefficient, inconvenient to operate, and may cause damage to the pipes. For example, using a sling to tie the pipe and using traction to lock the pipe is easy to fall off when the traction is insufficient, and safety cannot be guaranteed. Some devices weld steel plates on the pipes as traction points. The welding process damages the pipes, affecting the service life of the pipes and the quality of the project.
[0004] In summary, the prior art has the following defects:
[0005] The work efficiency is low. For small construction areas, traditional traction methods cannot be used for fixing. There are many fixing and welding processes, and the preparation time is long, which delays the construction period. The construction quality is poor. After the pipeline surface is welded, it will affect the pipeline quality and there will be a risk of leakage in the later operation. It is difficult to operate safely. The traction force of the sling is insufficient and it is inconvenient to use. It requires experienced workers to operate and is easy to fall off, causing the winch to be unhooked, which poses a risk of injury. The labor cost of welding tooling traction is high.
[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0007] Purpose of the invention: The technical problem to be solved by the utility model is to provide a pipeline internal fixed traction device in view of the deficiencies in the prior art.
[0008] In order to solve the above technical problems, the utility model discloses a pipeline internal fixing traction device, comprising:
[0009] A central axis, the central axis is a hollow tubular structure; a protective device is fixedly arranged on the outer side of the central axis; a fixing device is fixedly arranged on the protective device;
[0010] The inner side of the central shaft is slidably connected with the driving device. One end of the driving device is engaged with the fixing device and drives it to fix the pipeline. The other end is fixed with a traction ring.
[0011] Furthermore, the enclosure device includes:
[0012] A main structure fixedly arranged outside the central axis, the main structure is sheet-shaped, and the side close to the traction sling is an inclined side.
[0013] Furthermore, the number of the main structures is more than two, and they are evenly distributed on the circumferential circle of the cross-section of the central axis.
[0014] Furthermore, the fixing device includes:
[0015] An inner fixing plate fixedly arranged on the side of the main structure away from the inclined side, and one end of the inner fixing plate away from the main structure is movably connected to a pressing plate through a bolt.
[0016] Furthermore, one end of the pressing plate away from the inner fixing plate is set as an inclined surface.
[0017] Furthermore, the driving device includes:
[0018] A screw rod passing through the inside of the central axis, one end of the screw rod close to the upper inclined side of the main structure is fixedly connected to the traction sling, and the other end is threadedly connected to a tightening nut;
[0019] The tightening nut is sleeved on the screw rod, and a sliding opening is fixedly arranged on the outer side surface of the tightening nut.
[0020] Furthermore, the contact surface of the sliding opening meshes with the pressing plate.
[0021] Furthermore, a groove is provided at the contact position of the sliding opening with the pressing plate, and the width of the groove is the same as the thickness of the pressing plate.
[0022] Furthermore, a fixing nut threadedly connected to the screw rod is sleeved on the screw rod between the central axis and the traction sling.
[0023] Furthermore, the number of the inner fixing plates is more than 2, and they are evenly distributed on the concentric circles of the circumferential circle of the cross-section of the central axis;
[0024] The number and position of the sliding openings correspond to those of the inner fixing plates.
[0025] Advantageous effects:
[0026] 1. The in-pipe fixed traction device proposed by the present utility model is flexible and convenient to operate, and can be operated in a narrow space, such as the maintenance and extraction operation of boiler furnace tubes.
[0027] 2. The traction device proposed by the present utility model is not welded on the pipeline, and there is no damage to the pipeline.
[0028] 3. The device proposed by the utility model can increase the fastening force according to the rotating traction ring and is applicable to pipes of different lengths.
[0029] 4. For the device proposed by the utility model, only by loosening the traction ring can the device be pulled out from the pipe, and the disassembly is convenient. Description of the Drawings
[0030] The following further specific description of the utility model will be made in conjunction with the drawings and specific embodiments, and the above and / or other advantages of the utility model will become clearer.
[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.
[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of an embodiment of the utility model.
[0033] Figure 3 It is a partially enlarged schematic diagram of the bottom of the drive structure in an embodiment of the utility model.
[0034] Figure 4 Shown is a partially enlarged side schematic diagram of the bottom of the drive structure in an embodiment of the utility model.
[0035] Figure 5 Shown is a partially enlarged sectional view B of the bottom of the drive structure in an embodiment of the utility model.
[0036] In the figure: 1 is the traction ring, 2 is the screw rod, 3 is the fixed nut, 4 is the central shaft, 5 is the main structure, 6 is the inner fixing plate, 7 is the pressing plate, 8 is the sliding opening, and 9 is the tightening nut. Specific Embodiments
[0037] The utility model provides an efficient, convenient and safe pipe traction device to solve the problems existing in the existing traction methods; improve the working efficiency of pipe traction, reduce the labor intensity; reduce the damage to the pipe and ensure the quality and service life of the pipe.
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model.
[0039] As Figure 1 shown, a pipe positioning traction device includes a central shaft 4. The central shaft is a circular pipe structure, welded and fixed to the inner fixing plate 6 on one side and welded and fixed to the main structure 5 on the other side. As Figure 2 shown, the main structure 5 is composed of several triangular steel plates (which can be 2 or 3 or more than 3) to provide a reaction axial force, and several pressing plates 7. The pressing plate 7 is a trapezoidal structure, and the pressing plate 7 is connected to the inner fixing plate 6 by bolts;
[0040] As Figure 3 shown, the device further includes: a plurality of sliding openings 8, as Figure 4 shown, the sliding opening 8 is a right triangle with a grooved hypotenuse structure, as Figure 5 shown, the pressing plate 7 can fit with the sliding opening 8, that is, the groove angle on the sliding opening is the same as the bevel angle of the pressing plate, matching each other, and the contact surface is polished smoothly to reduce the friction when contacting each other. The sliding openings 8 are fixedly welded around the tightening nut 9 at preset intervals (if there are three sliding openings 8, the angle is 120°). The screw rod 2 passes through the central shaft 4. One side of the screw rod 2 is used in cooperation with the tightening nut 9, and the other side of the screw rod 2 is fixedly welded to the traction sling 1. The traction sling 1 is a circular ring structure. When the traction sling is rotated counterclockwise, the screw rod 2 moves forward, driving the tightening nut 9 and the sliding opening 8 to move forward. The sliding opening 8 pushes the pressing plate 7 to expand radially through the hypotenuse groove, so that the position of the top of the pressing plate 7 is closely attached to the inner wall of the pipe. By rotating the traction sling 1, the friction force generated by the pressing plate 7 on the inner wall of the pipe is increased, so that the pressing plate 7 can press the pipe more stably. When the pressing plate 7 generates an appropriate friction force and is fixed to the inner wall of the pipe, rotate the fixing nut 3 to make the main structure 5 and the central shaft 4 stable. The traction sling 1 is also used to hang into the hook at the end of the steel wire rope on the winch. When the winch is started, the traction of the pipe can be realized, and the installation is relatively convenient;
[0041] During disassembly, only need to loosen the tightening nut 3 and the screw rod 2, and the whole device can be pulled out from the pipe.
[0042] The present invention provides an idea and method for a fixing and traction device inside a pipe. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the prior art.
Claims
1. A fixed traction device in a pipeline, characterized in that: include: A central shaft (4), wherein the central shaft (4) is a hollow tubular structure; a protective device is fixedly arranged outside the central shaft (4); and a fixing device is fixedly arranged on the protective device; The inner side of the central shaft (4) is slidably connected to a driving device, one end of the driving device is engaged with a fixing device and drives the fixing device to fix the pipeline, and the other end is fixedly provided with a traction ring (1).
2. A pipeline internal fixing traction device according to claim 1, characterized in that: The enclosure device comprises: A main structure (5) is fixedly arranged on the outside of the central axis (4), wherein the main structure (5) is in the shape of a sheet, and a side close to the traction ring (1) is a beveled side.
3. A pipeline internal fixing traction device according to claim 2, characterized in that: The number of the main structures (5) is more than two and they are evenly distributed on the cross-sectional circumference of the central axis (4).
4. A pipeline internal fixing traction device according to claim 3, characterized in that: The fixing device comprises: An inner fixing plate (6) is fixedly arranged on a side of the main structure (5) away from the hypotenuse, and one end of the inner fixing plate (6) away from the main structure (5) is movably connected to the pressing plate (7) via bolts.
5. A pipeline internal fixing traction device according to claim 4, characterized in that: One end of the pressing plate (7) away from the inner fixing plate (6) is arranged as an inclined surface.
6. A pipeline internal fixing and traction device according to claim 5, characterized in that: The driving device comprises: A screw rod (2) passing through the interior of the central shaft (4), wherein one end of the screw rod (2) close to the upper bevel of the main structure (5) is fixedly connected to the traction ring (1), and the other end is threadedly connected to a tightening nut (9); The tightening nut (9) is sleeved on the screw rod (2), and a sliding opening (8) is fixedly provided on the outer side surface of the tightening nut (9).
7. A pipeline internal fixing and traction device according to claim 6, characterized in that: The sliding opening (8) engages with the contact surface of the pressing plate (7).
8. The pipeline internal fixing and traction device according to claim 7, characterized in that: A groove is provided on the sliding opening (8) at a position where the sliding opening (8) contacts the pressing plate (7), and the width of the groove is consistent with the thickness of the pressing plate (7).
9. The pipeline internal fixing and traction device according to claim 8, characterized in that: The screw rod (2) between the central shaft (4) and the traction ring (1) is sleeved with a fixing nut (3) threadedly connected to the screw rod (2).
10. The pipeline internal fixing and traction device according to claim 9, characterized in that: The number of the inner fixing plates (6) is more than 2 and they are evenly distributed on concentric circles with the cross-sectional circumference of the central axis (4); The number and position of the sliding openings (8) correspond to those of the inner fixing plate (6).