Flaring device for large-diameter pipe repair

Abstract

The utility model relates to flaring device technical field, concretely is a flaring device for large -diameter pipeline maintenance, include: device body, device body includes equipment body, equipment body one end inside is provided with pivot rod, pivot rod one end is provided with the expansion head, expansion head back is connected with the assembly structure, the assembly structure includes the guide rod, the guide rod one end adsorption has the magnetism pole, the utility model discloses the control board is made to drive the limit rod to move to the inside of the movable slot that pivot rod opens, then releases the control board, makes the support spring support fixed ring reset to the limit rod bottom end is inserted in the limit hole inside that the guide rod opens, and the angle and position of guide rod are limited to the quick assembly effect between pivot rod and expansion head is realized, avoids the problem that expansion head loosens because of silk after the wear of screw.

Description

Technical Field

[0001] This utility model relates to the technical field of flaring devices, specifically a flaring device for repairing large-diameter pipes. Background Technology

[0002] Large-diameter pipeline flaring devices are mainly used to repair or replace pipeline connection components. By flaring, the pipeline's sealing performance is restored, and leakage problems are solved. The flaring process expands the pipeline end into a trumpet shape, which, when combined with a special sealing ring or joint, forms a seal. This can quickly seal leaks caused by corrosion, wear, or improper installation, preventing continuous loss of the medium.

[0003] When using existing flaring devices for large-diameter pipe repair, their function is to expand the end of the large-diameter pipe so that it can cooperate with the sealing ring or joint to form a seal. Existing flaring devices connect the rotating shaft and the expansion head by setting threads, but after the threads wear, it is easy to cause the expansion head to loosen due to stripping. Utility Model Content

[0004] The purpose of this utility model is to provide a flaring device for large-diameter pipe repair, so as to solve the problem mentioned in the background art that the existing flaring device connects the rotating shaft and the expansion head by setting a thread, but after the thread wears, it is easy to cause the expansion head to loosen due to stripping.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flaring device for large-diameter pipe repair, comprising: The device body includes a device body, a rotating shaft is provided inside one end of the device body, and an expansion head is provided at one end of the rotating shaft; The expansion head is connected to an assembly structure on its back. The assembly structure includes a guide rod, one end of which is attached to a magnetic rod. A limiting rod is inserted inside the top of the guide rod. A control plate is connected to the top of the limiting rod. A fixing ring is connected to the outer surface of the limiting rod. A support spring is connected to one side of the top surface of the fixing ring.

[0006] Preferably, a positioning groove is formed on one end surface of the rotating shaft rod, one end of the guide rod is inserted into the positioning groove formed on the rotating shaft rod, one end of the guide rod has magnetic force, and the magnetic rod is connected to one side of the inner wall of the positioning groove formed on the rotating shaft rod. The guide rod and the magnetic rod are attracted and connected by magnetic force.

[0007] Preferably, a movable groove is provided on one side of the positioning groove of the rotating shaft, and the fixing ring is always located inside the movable groove of the rotating shaft.

[0008] Preferably, the limiting rod is inserted into the movable groove of the rotating shaft and is movably connected to the rotating shaft. The top end of the supporting spring is connected to one side of the inner wall of the movable groove of the rotating shaft. The top surface of the guide rod has a limiting hole, and the bottom end of the limiting rod is inserted into the limiting hole of the guide rod.

[0009] Preferably, a protective structure is connected to the top surface of the rotating shaft. The protective structure includes a fixing frame, a sliding plate is inserted inside one end of the fixing frame, a first bracket is connected to one side of the top of the sliding plate, an adjusting screw is rotatably connected inside one end of the first bracket, and a second bracket is rotatably connected to the outer surface of one end of the adjusting screw.

[0010] Preferably, the fixing frame has grooves on both sides of its surface, and the sliding plate is inserted into the grooves of the fixing frame and slidably connected to the fixing frame.

[0011] Preferably, the second bracket is connected to one side of the top surface of the fixed frame, the first bracket has a threaded hole on its surface, the adjusting screw is rotatably connected to the threaded hole in the first bracket, and a bearing is provided between the adjusting screw and the second bracket to enable the adjusting screw and the second bracket to be movably connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By pulling the control plate, the limiting rod is moved into the movable groove of the rotating shaft rod, and the fixed ring is compressed by the support spring to retract. Then, the guide rod connected to the back of the expansion head is inserted into the positioning groove of the rotating shaft rod. The guide rod and the magnetic rod are attracted and connected by magnetic force, thereby positioning the guide rod. Then, the control plate is released, and the support spring supports the fixed ring to return to its original position, so that the bottom end of the limiting rod is inserted into the limiting hole of the guide rod, which limits the angle and position of the guide rod. This achieves the quick assembly between the rotating shaft rod and the expansion head, and avoids the problem of the expansion head loosening due to stripped threads after the threads wear.

[0013] 2. By rotating the angle of the adjusting screw, the first bracket is moved on the outer surface of the adjusting screw. The second bracket limits one end of the adjusting screw without affecting the angle of the adjusting screw. This causes the first bracket to move the sliding plate into the groove of the fixed frame, thereby opening the fixed frame and moving the control board. When not in use, the fixed frame is closed to protect the control board and prevent dust from entering the interior through the gaps, which would cause cleaning problems. Attached Figure Description

[0014] Figure 1 This is a three-dimensional front view of the structure of this utility model; Figure 2 This is a three-dimensional side view and cross-sectional view of the structure of this utility model; Figure 3 This is a partial sectional three-dimensional side view of the structure of this utility model; Figure 4 This is a partial cross-sectional perspective view of the structure of this utility model. Figure 5 This is a top view and partial cross-sectional perspective of the structure of this utility model.

[0015] In the diagram: 1. Device body; 11. Equipment body; 12. Rotating shaft; 13. Expansion head; 2. Assembly structure; 21. Guide rod; 22. Magnetic rod; 23. Limiting rod; 24. Control panel; 25. Fixing ring; 26. Support spring; 3. Protective structure; 31. Fixing frame; 32. Slide plate; 33. First support; 34. Adjusting screw; 35. Second support. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 One embodiment provided by this utility model: A flaring device for repairing large-diameter pipes, comprising: The device body 1 includes a device body 11. A rotating shaft 12 is provided inside one end of the device body 11, and an expansion head 13 is provided at one end of the rotating shaft 12. The surface material of the expansion head 13 is existing technology and can be purchased on the market. It is not considered as a technical protection point of this application, so no further details are made. An assembly structure 2 is connected to the back of the expansion head 13. The assembly structure 2 includes a guide rod 21. A magnetic rod 22 is attached to one end of the guide rod 21. A limiting rod 23 is inserted inside the top of the guide rod 21. A control plate 24 is connected to the top of the limiting rod 23. A fixing ring 25 is connected to the outer surface of the limiting rod 23. A support spring 26 is connected to one side of the top surface of the fixing ring 25.

[0018] Furthermore, a positioning groove is formed on one end of the rotating shaft 12, and one end of the guide rod 21 is inserted into the positioning groove of the rotating shaft 12. One end of the guide rod 21 has magnetic force, and the magnetic rod 22 is connected to one side of the inner wall of the positioning groove of the rotating shaft 12. The guide rod 21 and the magnetic rod 22 are connected by magnetic force to achieve the connection between the guide rod 21 and the magnetic rod 22 through magnetic force, thereby positioning the guide rod 21.

[0019] Furthermore, a movable groove is provided on one side of the positioning groove of the rotating shaft 12, and the fixed ring 25 is always located inside the movable groove of the rotating shaft 12, so that the fixed ring 25 can be moved and limited by the movable groove of the rotating shaft 12, and the fixed ring 25 can move within the rotating shaft 12.

[0020] Furthermore, the limiting rod 23 is inserted into the movable groove of the rotating shaft rod 12 and is movably connected to the rotating shaft rod 12. The top end of the support spring 26 is connected to one side of the inner wall of the movable groove of the rotating shaft rod 12. The top surface of the guide rod 21 has a limiting hole. The bottom end of the limiting rod 23 is inserted into the limiting hole of the guide rod 21, so that the bottom end of the limiting rod 23 is positioned through the limiting hole of the guide rod 21, and the angle and position of the guide rod 21 are limited by the limiting rod 23.

[0021] Furthermore, a protective structure 3 is connected to the top surface of the rotating shaft 12. The protective structure 3 includes a fixing frame 31. A sliding plate 32 is inserted inside one end of the fixing frame 31. A first bracket 33 is connected to one side of the top of the sliding plate 32. An adjusting screw 34 is rotatably connected inside one end of the first bracket 33. A second bracket 35 is rotatably connected to the outer surface of one end of the adjusting screw 34. This protects the control board 24 and prevents dust from entering the interior through gaps, which would make it difficult to clean.

[0022] Furthermore, grooves are provided on both sides of the surface of the fixing frame 31, and the two sides of the slide plate 32 are inserted into the grooves provided in the fixing frame 31 and slidably connected to the fixing frame 31, so that the slide plate 32 can be positioned on one side through the grooves provided in the fixing frame 31, and the slide plate 32 can slide inside the fixing frame 31.

[0023] Furthermore, the second bracket 35 is connected to one side of the top surface of the fixed frame 31, and the surface of the first bracket 33 is provided with a threaded hole. The adjusting screw 34 is rotatably connected to the inside of the threaded hole of the first bracket 33. A bearing is provided between the adjusting screw 34 and the second bracket 35 to make the adjusting screw 34 and the second bracket 35 movably connected, so that the angle of the second bracket 35 is not affected when the adjusting screw 34 is rotated through the bearing.

[0024] Working principle: When assembling the flaring device for large-diameter pipe maintenance, pulling the control plate 24 causes the limiting rod 23 to move into the movable groove of the rotating shaft 12, and the fixing ring 25 compresses the support spring 26 to contract. Then, the guide rod 21 connected to the back of the expansion head 13 is inserted into the positioning groove of the rotating shaft 12. The guide rod 21 and the magnetic rod 22 are attracted and connected by magnetic force, thereby positioning the guide rod 21. Then, the control plate 24 is released, and the support spring 26 supports the fixing ring 25 to return to its original position, so that the bottom end of the limiting rod 23 is inserted into the limiting hole of the guide rod 21, which restricts the angle and position of the guide rod 21, thereby realizing the rapid assembly between the rotating shaft 12 and the expansion head 13.

[0025] When protecting the flaring device used for large-diameter pipeline maintenance, the angle of the adjusting screw 34 is rotated, causing the first bracket 33 to move on the outer surface of the adjusting screw 34. The second bracket 35 limits one end of the adjusting screw 34 without affecting its angle, thereby causing the first bracket 33 to slide the sliding plate 32 into the groove of the fixing frame 31, thus opening the fixing frame 31 and moving the control plate 24. When not in use, the fixing frame 31 is closed to protect the control plate 24 and prevent dust from entering the interior through gaps, which would cause cleaning problems.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flaring device for large diameter pipe repair, characterized by, include: The device body (1) includes a device body (11), a rotating shaft (12) is provided inside one end of the device body (11), and an expansion head (13) is provided at one end of the rotating shaft (12). The expansion head (13) is connected to an assembly structure (2) on its back. The assembly structure (2) includes a guide rod (21). A magnetic rod (22) is attached to one end of the guide rod (21). A limiting rod (23) is inserted inside the top of the guide rod (21). A control plate (24) is connected to the top of the limiting rod (23). A fixing ring (25) is connected to the outer surface of the limiting rod (23). A support spring (26) is connected to one side of the top surface of the fixing ring (25).

2. A flaring device for use in the repair of large diameter pipes as claimed in claim 1, wherein: The rotating shaft (12) has a positioning groove on one end surface. One end of the guide rod (21) is inserted into the positioning groove of the rotating shaft (12). One end of the guide rod (21) has magnetic force. The magnetic rod (22) is connected to one side of the inner wall of the positioning groove of the rotating shaft (12). The guide rod (21) and the magnetic rod (22) are connected by magnetic force.

3. A flaring device for large diameter pipe repair as defined in claim 1, wherein: The positioning groove of the rotating shaft (12) has a movable groove on one side, and the fixing ring (25) is always located inside the movable groove of the rotating shaft (12).

4. A flaring device for large diameter pipe repair as defined in claim 1, wherein: The limiting rod (23) is inserted into the movable groove of the rotating shaft rod (12) and is movably connected to the rotating shaft rod (12). The top end of the support spring (26) is connected to one side of the inner wall of the movable groove of the rotating shaft rod (12). The top surface of the guide rod (21) has a limiting hole. The bottom end of the limiting rod (23) is inserted into the limiting hole of the guide rod (21).

5. A flaring device for large diameter pipe repair as defined in claim 1, wherein: The top surface of the rotating shaft (12) is connected to a protective structure (3). The protective structure (3) includes a fixing frame (31). A sliding plate (32) is inserted inside one end of the fixing frame (31). A first bracket (33) is connected to one side of the top of the sliding plate (32). An adjusting screw (34) is rotatably connected inside one end of the first bracket (33). A second bracket (35) is rotatably connected to the outer surface of one end of the adjusting screw (34).

6. A flaring device for large diameter pipe repair as defined in claim 5, wherein: The fixed frame (31) has grooves on both sides of its surface, and the sliding plate (32) is inserted into the grooves of the fixed frame (31) and slidably connected to the fixed frame (31) on both sides.

7. A flaring device for large diameter pipe repair as defined in claim 5, wherein: The second bracket (35) is connected to one side of the top surface of the fixed frame (31). The first bracket (33) has a threaded hole on its surface. The adjusting screw (34) is rotatably connected to the threaded hole of the first bracket (33). A bearing is provided between the adjusting screw (34) and the second bracket (35) to make the adjusting screw (34) and the second bracket (35) movably connected.

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