Non-excavation type pipeline maintenance device
By designing an automatic clamping and cutting device for non-excavation pipeline maintenance, the safety risks of handheld pipe fittings are solved, and the stability and automatic cutting of pipe fittings are achieved, which improves the safety of the maintenance process.
Patent Information
- Application Number
- CN202421616725.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When cutting pipe fittings in repairs, there is a safety risk for cutting handheld water pipes, and the safety of personnel operations is not guaranteed.
A maintenance device for non-excavation pipes is designed, including cutting frames, tool holders, support shafts, cutting blades, pipe frames, clamping mechanisms and motor drive systems. Through the synchronous rotation of automatic clamping and cutting blades, the pipe fittings can be stable and automatic cutting.
The device reduces personnel's participation in the cutting process through automatic clamping and synchronous rotation of the cutting blade, improves safety and avoids accidental injuries caused by hand-held pipe fittings.
Smart Images

Figure CN222807211U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of trenchless pipeline maintenance, in particular to a trenchless pipeline maintenance device. Background Art
[0002] Buried water pipes usually use larger diameter cement pipes or smaller diameter plastic pipes. When repairing trenchless plastic water pipes, the water pipes need to be cut according to the repair needs to obtain the appropriate repair and installation size.
[0003] The cutting of plastic water pipes is relatively simple. It can be done on-site by using a cutting machine or equipment with a cutting function. When cutting water pipes, people generally need to hold the water pipes with their hands and slowly move the water pipes or cutting tools to perform cutting operations. In order to make the water pipes more stable during the cutting process, people are accustomed to holding the pipes closer to the cutting position, which is very dangerous. No one can guarantee that there will be no accidents. Therefore, a trenchless pipeline maintenance device is needed to make the process of repairing water pipe cutting safer. Utility Model Content
[0004] 1. Technical Problems Solved
[0005] The technical problem to be solved by the utility model is that when cutting pipe fittings for maintenance, cutting by holding a water pipe has certain safety risks and the safety of personnel operation is not guaranteed.
[0006] 2. Technical Solution
[0007] To solve the above technical problems, the technical solution provided by the utility model is: a non-excavation pipeline maintenance device, including a cutting frame, one side of the cutting frame is upwardly connected to a knife holder, one side of the knife holder is rotatably connected to a support shaft, and the support shaft is connected to a cutting blade.
[0008] The cutting frame is located below the cutting blade and is rotatably connected to threaded shaft 1 and threaded shaft 2 on both sides thereof; threaded shaft 1 and threaded shaft 2 are both connected to driving blocks with internal thread structures; a pipe rack is connected above the driving block; a plurality of supporting blocks are connected to one side of the pipe rack; a clamp is connected inwardly to the supporting block; a limiting groove is connected to the supporting block; an adjusting disk is connected to one side of the pipe rack; one end of the adjusting disk is arranged between the clamp and one end of the pipe rack; a plurality of supporting columns are connected to the adjusting disk; a clip is rotatably connected to the supporting column; one end of the clip is arc-shaped and arranged in the limiting groove.
[0009] Furthermore, a chain groove chain transmission mechanism is commonly connected between one end of the threaded shaft one and the threaded shaft two, so that the threaded shaft one and the threaded shaft two rotate synchronously. A No. 1 motor matching with the threaded shaft one is internally connected to one side of the cutting frame to provide power for the rotation of the threaded shaft one.
[0010] Furthermore, a transmission shaft is rotatably connected to the side of the tool holder away from the cutting blade, and a belt transmission mechanism is commonly connected between the transmission shaft and the support shaft, so that the transmission shaft and the support shaft rotate synchronously, and a No. 2 motor cooperating with the transmission shaft is connected to one side of the tool holder to provide power for the rotation of the transmission shaft.
[0011] Furthermore, a handle is connected upwardly to the top of the adjusting disk to facilitate manual rotation of the adjusting disk to clamp the pipe fitting.
[0012] Furthermore, a protective cover matching with the cutting blade is connected to one end of the tool holder to isolate the cutting blade and play a role in protecting personnel.
[0013] 3. Beneficial Effects
[0014] The advantages of the utility model compared with the prior art are that the device is provided with a pipe clamping mechanism, which fixes the two sides of the pipe cutting position to stabilize the pipe instead of the personnel holding the pipe, and is provided with an automatic feeding mechanism to push the pipe for cutting instead of the personnel holding the pipe by hand, thereby reducing or avoiding the participation of personnel in pipe cutting during the maintenance process, and thus providing a certain degree of protection for the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the appearance of a trenchless pipeline maintenance device of the utility model. Figure 1 .
[0016] Figure 2 This is a schematic diagram of the appearance of a trenchless pipeline maintenance device of the utility model. Figure 2 .
[0017] Figure 3 yes Figure 1 Schematic diagram of the structure of part A.
[0018] Figure 4 yes Figure 2 Schematic diagram of the structure of part B.
[0019] As shown in the figure: 1. Cutting frame, 2. Threaded shaft one, 3. Motor No. 1, 4. Threaded shaft two, 5. Chain groove chain transmission mechanism, 6. Driving block, 7. Pipe rack, 8. Support block, 9. Pallet, 10. Limiting groove, 11. Adjusting disk, 12. Support column, 13. Clip, 14. Handle, 15. Knife holder, 16. Drive shaft, 17. Motor No. 2, 18. Support shaft, 19. Belt transmission mechanism, 20. Cutting blade, 21. Protective cover. DETAILED DESCRIPTION
[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0021] Embodiment 1
[0022] Combined with Figure 1 , Attachment Figure 2 and attached Figure 4 In order to solve the above technical problems, the technical solution provided by the utility model is: a non-excavation pipeline maintenance device, including a cutting frame 1, one side of the cutting frame 1 is upwardly connected with a tool holder 15, one side of the tool holder 15 is rotatably connected with a support shaft 18, and a cutting blade 20 is connected to the support shaft 18, and one end of the tool holder 15 is connected with a protective cover 21 that matches the cutting blade 20, which is used to isolate the cutting blade 20 and play a role in personnel protection, and the tool holder 15 is rotatably connected with a transmission shaft 16 on the side away from the cutting blade 20, and a belt transmission mechanism 19 is commonly connected between the transmission shaft 16 and the support shaft 18, so that the transmission shaft 16 and the support shaft 18 rotate synchronously, and one side of the tool holder 15 is internally connected with a No. 2 motor 17 that matches the transmission shaft 16 to provide power for the rotation of the transmission shaft 16.
[0023] The second motor 17 provides power support so that the cutting blade 20 can rotate quickly in the cutting frame 1, thereby achieving cutting of the pipe.
[0024] Embodiment 2
[0025] Combined with Figure 1-3The cutting frame 1 is located below the cutting blade 20, and is rotatably connected on both sides with a threaded shaft 2 and a threaded shaft 4. A chain groove chain transmission mechanism 5 is commonly connected between one end of the threaded shaft 2 and the threaded shaft 4, so that the threaded shaft 2 and the threaded shaft 4 rotate synchronously. A No. 1 motor 3 that cooperates with the threaded shaft 2 is connected inside one side of the cutting frame 1 to provide power for the rotation of the threaded shaft 2. A driving block 6 with an internal thread structure is connected to the threaded shaft 2 and the threaded shaft 2 4. A pipe frame 7 is connected above the driving block 6. One side of the pipe frame 7 is connected to A plurality of support blocks 8 are connected, and a clamping plate 9 is connected inwardly to the support block 8. A limiting groove 10 is connected on the support block 8. An adjusting disk 11 is connected inside one side of the pipe rack 7. One end of the adjusting disk 11 is arranged between the clamping plate 9 and one end of the pipe rack 7. A plurality of support columns 12 are connected inside the adjusting disk 11. A clamping piece 13 is rotatably connected to the support column 12. One end of the clamping piece 13 is arc-shaped and is arranged in the limiting groove 10. A handle 14 is connected upward on the top of the adjusting disk 11 to facilitate manual shaking of the adjusting disk 11, thereby clamping the pipe fitting.
[0026] By slightly turning the adjusting disk 11 with the hand-held handle 14, the position of the clip 13 between the adjusting disk 11 and the support block 8 changes, and the distance between the ends of the clips 13 away from the support block 8 becomes smaller, thereby achieving the clamping of the pipe fitting. The end of the clip 13 that contacts the pipe fitting is also arc-shaped, which is convenient for clamping and loosening the pipe fitting. The two sets of clamping mechanisms are used to fix the two sides of the pipe fitting to be cut, instead of the hidden danger of possible injury caused by holding the pipe fitting by hand during cutting. The clamping mechanism supports the pipe fitting by rotating the two threaded shafts, and can move on the cutting frame 1 by itself, approaching the cutting blade 20 to complete the cutting, instead of manually pushing the pipe fitting for cutting.
[0027] When the utility model is implemented, the device can be used to repair trenchless pipelines and cut replacement pipe fittings. The pipe fittings to be cut are passed through the clamping ends in the two pipe racks 7. The cutting position is aligned with the cutting blade 20 on the cutting rack 1. The handles 14 are turned one by one, and the pipe fittings are fixed to the pipe rack 7 through the clamping mechanism. The No. 2 motor 17 is operated, and the cutting blade 20 rotates rapidly to prepare for cutting. The No. 1 motor 3 is operated, and the fixed pipe fittings are slowly moved toward the cutting blade 20 through the action of the two threaded shafts and the driving block 6. When the pipe fittings are in contact with the cutting blade 20, they can be cut. During the cutting process, no personnel participation is required, thereby avoiding personal injuries caused by pipe cutting during pipeline maintenance.
[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A trenchless pipeline maintenance device, comprising a cutting frame (1), wherein one side of the cutting frame (1) is upwardly connected to a knife frame (15), one side of the knife frame (15) is rotatably connected to a support shaft (18), and a cutting blade (20) is connected to the support shaft (18), characterized in that: The cutting frame (1) is located below the cutting blade (20) and is rotatably connected to the two sides thereof with a threaded shaft 1 (2) and a threaded shaft 2 (4). The threaded shaft 1 (2) and the threaded shaft 2 (4) are both connected to a driving block (6) with an internal thread structure. A pipe frame (7) is connected above the driving block (6). A plurality of supporting blocks (8) are connected to one side of the pipe frame (7). A clamping plate (9) is connected inwardly to the supporting block (8). A limiting groove (10) is connected to the supporting block (8). An adjusting disk (11) is connected to one side of the pipe frame (7). One end of the adjusting disk (11) is arranged between the clamping plate (9) and one end of the pipe frame (7). A plurality of supporting columns (12) are connected to the adjusting disk (11). A clamping piece (13) is rotatably connected to the supporting column (12). One end of the clamping piece (13) is arc-shaped and arranged in the limiting groove (10).
2. A trenchless pipeline maintenance device according to claim 1, characterized in that: A chain groove chain transmission mechanism (5) is commonly connected between one end of the threaded shaft 1 (2) and one end of the threaded shaft 2 (4), and a No. 1 motor (3) matched with the threaded shaft 1 (2) is internally connected to one side of the cutting frame (1).
3. The trenchless pipeline maintenance device according to claim 1, characterized in that: A transmission shaft (16) is rotatably connected to the side of the tool holder (15) away from the cutting blade (20), a belt transmission mechanism (19) is commonly connected between the transmission shaft (16) and the support shaft (18), and a second motor (17) matched with the transmission shaft (16) is connected to one side of the tool holder (15).
4. The trenchless pipeline maintenance device according to claim 1, characterized in that: The top of the adjustment disk (11) is connected upwardly with a handle (14).
5. The trenchless pipeline maintenance device according to claim 1, characterized in that: One end of the knife holder (15) is connected to a protective cover (21) that matches the cutting blade (20).