Bending equipment for underground power pipe jacking

Abstract

The utility model relates to the technical field of bending equipment, and discloses bending equipment for an underground electric jacking pipe, which comprises a bending table, a support, a fixing buckle and a bolt, and a control part for preventing a pipe with a thinner pipe wall from deforming when the pipe is bent is arranged above the bending table; wherein the control part comprises a bearing, a positioning roller, a shaft rod, a bending arm, a movable groove, a limiting groove, limiting teeth, a sliding block, a spring I and the like, and according to the bending equipment for the underground power pipe jacking, when the cross rod slides upwards by a certain distance, the cross rod can abut against the inclined face of the inclined face block and can force the inclined face block to slide in the direction of the limiting groove; a second spring can be compressed through a square block when the inclined plane block slides, the inclined plane block is driven to reset when the cross rod does not abut against the inclined plane block, the inclined plane block can be gradually inserted between limiting teeth when the inclined plane block gradually slides in the direction of a limiting groove, and therefore the pull rod cannot be continuously pulled, it is indicated that the bending roller locks the to-be-bent pipe, and the bending efficiency is improved. And pipe deformation caused by continuous pulling is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, specifically a bending device for underground power pipe jacking. Background Technology

[0002] Pipe bending equipment is a type of mechanical equipment used to bend metal pipes into desired angles or shapes. This type of equipment is widely used in various fields such as pipeline engineering, automobile manufacturing, shipbuilding, aerospace, and building decoration. Depending on the specific application requirements and conditions, appropriate pipe bending equipment can be selected. Pipe bending equipment is also required for underground power pipe jacking installations.

[0003] When bending thin-walled pipes, fixing them with bolts or other clamps can easily cause the pipes to deform, or bend while deformed, which can lead to deformation of the inner diameter of the pipe after bending, making it difficult for subsequent power lines to pass through. Utility Model Content

[0004] The purpose of this invention is to provide a bending device for underground power pipe jacking to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending device for underground power jacking pipes, comprising a bending table, a support, a fixing buckle and bolts, wherein a control part is provided above the bending table to prevent deformation of thin-walled pipes during bending;

[0006] The control unit includes bearings, positioning rollers, shafts, bending arms, movable grooves, limiting grooves, limiting teeth, sliders, spring one, sliding rods, bending rollers, guide grooves, sliding plates, hinge rods, pull rods, sliding grooves, moving grooves, crossbars, inclined blocks, square blocks, and spring two. The bottom surface of the bracket is fixedly connected to the top surface of the bending table. The fixing buckle passes through the bracket and is slidably connected. The surface of the fixing buckle is threaded with a bolt. The bottom end of the bolt passes through the bending table and is rotatably connected. First, the pipe is inserted into the fixing buckle and passes between the positioning roller and the bending roller. Then, the fixing buckle fixes the pipe by turning the bolt.

[0007] Preferably, a bearing is rotatably connected through the inner side of the bracket, a positioning roller is rotatably connected through the bearing, a shaft is rotatably connected through the inner side of the bearing, and the shaft passes through the bending table and is fixedly connected.

[0008] Preferably, a bending arm is rotatably connected through the top of the shaft. The inner side of the bending arm has a movable groove, and the inner side of the movable groove has a limiting groove. The inner side of the limiting groove is fixedly connected to a limiting tooth. When the inclined block gradually slides towards the limiting groove, it will gradually insert into the limiting tooth, thereby preventing the pull rod from being pulled further. This indicates that the bending roller has locked the pipe to be bent, preventing the pipe from deforming due to continued pulling.

[0009] Preferably, a slider is slidably connected to the inner side of the movable groove, and a spring is fixedly connected between the surface of the slider and the inner side of the movable groove. When the lever is grasped and pulled, the lever will push the slider to slide in the movable groove through the hinge rod, so that the slider pushes the slider to compress the spring, making it easy for the spring to be reset by pushing the slider in the future.

[0010] Preferably, a sliding rod is slidably connected through the inner side of the movable groove. When the sliding rod slides, it will drive the bending roller to gradually contact the pipe. When the bending roller contacts the pipe and continues to pull the rod, the hinge rod will be rotated by the resistance force. This will further cause the hinge rod to rotate and shorten the distance between the slide plate and the sliding rod. The sliding rod is rotatably connected through the bending roller. A guide groove is provided on the top surface of the bending table. The bottom end of the sliding rod is inserted into the guide groove. The guide groove does not limit the sliding rod, and the width of the guide groove is not exactly the same as the diameter of the sliding rod. The guide groove allows the operator to easily observe the direction of pulling the bending arm.

[0011] Preferably, a sliding plate is slidably connected through the inner side of the movable groove, a pull rod is fixedly connected to the top surface of the sliding plate, a sliding groove is formed on the inner side of the sliding plate, and a moving groove is formed on the inner side of the sliding groove.

[0012] Preferably, a hinge rod is passed through and hinged to the top of the slide rod, and a crossbar is passed through and fixedly connected to the end of the hinge rod away from the slide rod. When the slide rod slides, it will drive the bending roller to gradually contact the pipe. When the bending roller contacts the pipe and continues to pull the rod, the hinge rod will be subjected to the resistance force and rotate. This will further cause the hinge rod to rotate and shorten the distance between the slide plate and the slide rod, so that the hinge rod pushes the crossbar to slide upward in the moving groove. The two ends of the crossbar are inserted into the inner side of the moving groove.

[0013] Preferably, an inclined block is slidably connected through the inner side of the moving groove, and a square block is fixedly connected to the top surface of the inclined block. A second spring is fixedly connected between the square block and the inner side of the moving groove. After the crossbar slides upward a certain distance, it will abut against the inclined surface of the inclined block and force the inclined block to slide towards the limiting groove. When the inclined block slides, the second spring will be compressed by the square block, so that the inclined block can be reset when the crossbar no longer abuts against the inclined block.

[0014] Compared with the prior art, this utility model provides a bending device for underground power jacking pipes, which has the following beneficial effects:

[0015] 1. The bending device used for underground power pipe jacking has a crossbar that slides upward a certain distance and then contacts the inclined surface of the inclined block, forcing the inclined block to slide towards the limiting groove. When the inclined block slides, it also compresses the spring through the block, so that the crossbar can drive the inclined block to reset when it no longer contacts the inclined block. As the inclined block gradually slides towards the limiting groove, it gradually inserts into the limiting teeth, thus preventing the pull rod from being pulled further. This indicates that the bending roller has locked the pipe to be bent, preventing the pipe from deforming due to continued pulling.

[0016] 2. The bending equipment used for underground power pipe jacking can be adjusted by the distance between the bending roller and the positioning roller, and can bend pipes of different sizes within a certain range, making it more widely applicable and easy to operate. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0019] Figure 3 This is a top view of the bending arm structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the bending arm structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the skateboard structure of this utility model;

[0022] Figure 6 This is an enlarged cross-sectional view of the skateboard structure of this utility model.

[0023] In the diagram: 1. Bending table; 2. Control unit; 21. Bearing; 22. Positioning roller; 23. Shaft; 24. Bending arm; 25. Movable groove; 26. Limiting groove; 27. Limiting tooth; 28. Slider; 29. ​​Spring 1; 210. Slide rod; 211. Bending roller; 212. Guide groove; 213. Slide plate; 214. Hinge rod; 215. Pull rod; 216. Slide groove; 217. Moving groove; 218. Crossbar; 219. Inclined block; 220. Block; 221. Spring 2; 3. Bracket; 4. Fixing buckle; 5. Bolt. Detailed Implementation

[0024] like Figures 1-6As shown, this utility model provides a technical solution: a bending device for underground power jacking pipes, including a bending table 1, a support 3, a fixing buckle 4 and bolts 5. A control part 2 is provided above the bending table 1 to prevent deformation of thin-walled pipes when bending.

[0025] The control unit 2 includes a bearing 21, a positioning roller 22, a shaft 23, a bending arm 24, a movable groove 25, a limiting groove 26, a limiting tooth 27, a slider 28, a spring 29, a sliding rod 210, a bending roller 211, a guide groove 212, a sliding plate 213, a hinge rod 214, a pull rod 215, a sliding groove 216, a moving groove 217, a crossbar 218, an inclined block 219, a square block 220, and a spring 221. The bottom surface of the bracket 3 is fixedly connected to the top surface of the bending table 1. The fixing buckle 4 passes through the bracket 3 and is slidably connected. The surface of the fixing buckle 4 is threaded with a bolt 5. The bottom end of the bolt 5 passes through the bending table 1 and is rotatably connected. First, the pipe is inserted into the fixing buckle 4 and passes between the positioning roller 22 and the bending roller 211. Then, the fixing buckle 4 fixes the pipe by turning the bolt 5. A bearing 21 is rotatably connected through the inner side of the bracket 3. A positioning roller 22 is rotatably connected through the bearing 21. A shaft 23 is rotatably connected through the inner side of the bearing 21. The shaft 23 passes through the bending table 1 and is fixedly connected. A bending arm 24 is rotatably connected through the top of the shaft 23. A movable groove 25 is opened on the inner side of the bending arm 24. A limiting groove 26 is opened on the inner side of the movable groove 25. A limiting tooth 27 is fixedly connected to the inner side of the limiting groove 26. When the inclined block 219 gradually slides towards the limiting groove 26, it will gradually insert into the limiting tooth 27, thereby preventing the pull rod 215 from being pulled further. This indicates that the bending roller 211 has locked the pipe to be bent, preventing the pipe from deforming due to continued pulling. A slider 28 is slidably connected to the inner side of the movable groove 25. A spring 29 is fixedly connected between the surface of the slider 28 and the inner side of the movable groove 25. When the lever 215 is grasped and pulled, the lever 215 will push the slide bar 210 to slide in the movable groove 25 through the hinge lever 214. This causes the slide bar 210 to push the slider 28 to compress the spring 29, making it easier for the spring 29 to be reset by pushing the slider 28 in the future. A sliding rod 210 is slidably connected through the inner side of the movable groove 25. When the sliding rod 210 slides, it drives the bending roller 211 to gradually contact the pipe. When the bending roller 211 contacts the pipe and continues to pull the pull rod 215, the hinge rod 214 will be rotated due to the resistance force. This further causes the hinge rod 214 to rotate and shortens the distance between the slide plate 213 and the sliding rod 210. The sliding rod 210 is rotatably connected through and to the bending roller 211. A guide groove 212 is provided on the top surface of the bending table 1, and the bottom end of the sliding rod 210 is inserted into the guide groove 212. A slide plate 213 is slidably connected through and to the inner side of the movable groove 25. The pull rod 215 is fixedly connected to the top surface of the slide plate 213. A sliding groove 216 is provided on the inner side of the slide plate 213, and a moving groove 217 is provided on the inner side of the sliding groove 216.A hinge rod 214 is threaded through and hinged to the top of the slide rod 210. A crossbar 218 is threaded through and fixedly connected to the end of the hinge rod 214 away from the slide rod 210. When the slide rod 210 slides, it will drive the bending roller 211 to gradually contact the pipe. When the bending roller 211 contacts the pipe and continues to pull the pull rod 215, the hinge rod 214 will be subjected to the resistance force and rotate. This will further cause the hinge rod 214 to rotate and shorten the distance between the slide plate 213 and the slide rod 210, so that the hinge rod 214 pushes the crossbar 218 to slide upward in the moving groove 217. The two ends of the crossbar 218 are inserted into the inner side of the moving groove 217. An inclined block 219 is slidably connected through the inner side of the moving groove 217. A square block 220 is fixedly connected to the top surface of the inclined block 219. A spring 221 is fixedly connected between the square block 220 and the inner side of the moving groove 217. After the horizontal bar 218 slides upward a certain distance, it will abut against the inclined surface of the inclined block 219 and force the inclined block 219 to slide towards the limiting groove 26. When the inclined block 219 slides, the spring 221 will be compressed by the square block 220, so that the inclined block 219 can be reset when the horizontal bar 218 no longer abuts against the inclined block 219.

[0026] Based on the above implementation method, when bending the underground power jacking pipe, the pipe is first inserted into the fixing buckle 4 and passes between the positioning roller 22 and the bending roller 211. Then, the fixing buckle 4 is fixed by tightening the bolt 5. Then, the pull rod 215 is grasped and pulled. The pull rod 215 pushes the slide rod 210 to slide in the movable groove 25 through the hinge rod 214. This causes the slide rod 210 to push the slider 28 to compress the spring 29, making it easier for the spring 29 to be reset by pushing the slider 28. When the slide rod 210 slides, it will cause the bending roller 211 to gradually contact the pipe. When the bending roller 211 contacts the pipe and the pull rod 215 is pulled, the hinge rod 214 will be rotated by the resistance force. This further causes the hinge rod 214 to rotate and shortens the distance between the slide plate 213 and the slide rod 210. The hinge rod 214 pushes the crossbar 218 to slide upward in the moving groove 217. When the crossbar 218 slides upward a certain distance, it will abut against the inclined surface of the inclined block 219 and force the inclined block 219 to slide towards the limiting groove 26. When the inclined block 219 slides, the square block 220 will also compress the spring 221, so that when the crossbar 218 no longer abuts against the inclined block 219, it will drive the inclined block 219 to reset. When the inclined block 219 gradually slides towards the limiting groove 26, it will gradually insert into the limiting teeth 27, so that the pull rod 215 can no longer be pulled. This indicates that the bending roller 211 has locked the pipe to be bent, preventing the pipe from deforming due to continued pulling. At this time, the bending arm 24 can be moved with the shaft 23 as the axis, and the bending roller 211 will bend the pipe through the sliding rod 210 on the inner side of the bending arm 24.

[0027] Furthermore, by adjusting the distance between the bending roller 211 and the positioning roller 22, it can adapt to bending pipes of different sizes within a certain range, making it more widely applicable and simple and convenient to operate.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A bending apparatus for underground power pipe jacking, comprising a bending table (1), a support (3), a fixing buckle (4) and a bolt (5), characterized in that: The upper part of the bending table (1) is provided with a control part (2) to avoid deformation of the pipe wall when bending the pipe with thin wall; Wherein, the control part (2) comprises a bearing (21), a positioning roller (22), a shaft rod (23), a bending arm (24), a movable groove (25), a limiting groove (26), a limiting tooth (27), a sliding block (28), a spring I (29), a sliding rod (210), a bending roller (211), a guide groove (212), a sliding plate (213), a hinged rod (214), a pull rod (215), a sliding groove (216), a moving groove (217), a cross rod (218), an inclined block (219), a square block (220), a spring II (221), the bottom surface of the support (3) is fixedly connected with the top surface of the bending table (1), the fixed buckle (4) penetrates through the support (3) and is slidingly connected, the surface of the fixed buckle (4) penetrates and is threadedly connected with a bolt (5), and the bottom end of the bolt (5) penetrates through the bending table (1) and is rotationally connected.

2. A bending apparatus for underground power pipe jacking according to claim 1, characterized in that: The inner side of the support (3) penetrates and is rotationally connected with the bearing (21), the bearing (21) penetrates and is rotationally connected with the positioning roller (22), and the inner side of the bearing (21) penetrates and is rotationally connected with the shaft rod (23), and the shaft rod (23) penetrates the bending table (1) and is fixedly connected.

3. A bending arrangement for underground power pipe jacking according to claim 2, characterised in that: The top end of the shaft rod (23) penetrates and is rotationally connected with the bending arm (24), the inner side of the bending arm (24) is provided with the movable groove (25), the inner side of the movable groove (25) is provided with the limiting groove (26), and the inner side of the limiting groove (26) is fixedly connected with the limiting tooth (27).

4. A bending arrangement for underground power pipe jacking according to claim 3, characterised in that: The inner side of the movable groove (25) is slidingly connected with the sliding block (28), and the surface of the sliding block (28) and the inner side of the movable groove (25) are fixedly connected with the spring I (29).

5. A bending arrangement for underground power pipe jacking according to claim 3, characterised in that: The inner side of the movable groove (25) penetrates and is slidingly connected with the sliding rod (210), the sliding rod (210) penetrates and is rotationally connected with the bending roller (211), the top surface of the bending table (1) is provided with the guide groove (212), and the bottom end of the sliding rod (210) is inserted into the guide groove (212).

6. A bending apparatus for underground power pipe jacking according to claim 3, characterized in that: The inner side of the movable groove (25) penetrates and is slidingly connected with the sliding plate (213), the top surface of the sliding plate (213) is fixedly connected with the pull rod (215), the inner side of the sliding plate (213) is provided with the sliding groove (216), and the inner side of the sliding groove (216) is provided with the moving groove (217).

7. A bending arrangement for underground power pipe jacking according to claim 6, characterised in that: The top end of the sliding rod (210) penetrates and is hingedly connected with the hinged rod (214), the surface of the end, away from the sliding rod (210), of the hinged rod (214) penetrates and is fixedly connected with the cross rod (218), and the two ends of the cross rod (218) are inserted into the inner side of the moving groove (217).

8. A bending arrangement for underground power pipe jacking according to claim 6, characterised in that: The inner side of the moving groove (217) penetrates and is slidingly connected with the inclined block (219), the top surface of the inclined block (219) is fixedly connected with the square block (220), and the square block (220) and the inner side of the moving groove (217) are fixedly connected with the spring II (221).

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