On-line cutting tool for pipeline maintenance
By designing an online cutting tool for pipeline maintenance, the combination of U-frame, cutting wheel and extrusion wheel is used to solve the problems of pipe port deformation and debris during cutting of plastic pipes, and a fast, stable cutting and safe working environment is achieved.
Patent Information
- Application Number
- CN202421878021.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-05
AI Technical Summary
During the pipeline maintenance process, it is difficult for the existing technology to effectively cut plastic pipes, which can easily lead to deformation of the pipe mouth and increase the difficulty of subsequent takeover. At the same time, the debris generated during the cutting process poses a threat to the health of the operators.
A pipe access online cutting tool is designed, including two U-frames arranged side by side, cutting and extrusion wheels, adjustment components and grip rods. The cutting wheel and the extrusion wheel are clamped on the pipe by adjusting the assembly and the 360° rotation cutting is performed using the ring edge of the cutting wheel to achieve rapid cutting of the pipe.
The tool can quickly and stably cut plastic pipes, avoid pipe port deformation, simplify subsequent takeover operations, and reduce debris generation through rotary cutting, improving safety for operators.
Smart Images
Figure CN223012010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline cutting, and specifically discloses an on-line cutting tool for pipeline maintenance. Background Art
[0002] In the production systems and related equipment of chemical enterprises, pipelines are components for transporting various liquid or gas media. However, since pipelines are used for transporting various media under harsh conditions for a long time, to ensure their use stability and sealing performance, some special pipelines need to be regularly maintained. During the maintenance process, for some pipelines in special situations, on-line cutting is required, and after cutting, operations such as dredging and pipe connection are carried out.
[0003] During the current pipeline maintenance process, in most cases, workers use cutting machines or pliers to cut pipelines. Among them, cutting machines are generally used for cutting metal pipelines, while pliers are used for some plastic pipelines such as PP pipes and PVC pipes. However, when pliers are used to cut plastic pipelines, once the shearing force is applied too large, the pipe orifice is likely to deform, resulting in increased difficulty in subsequent pipe connection. When using a cutting machine to cut plastic pipelines, due to the pipelines being connected online at various different positions, it is inconvenient to operate the cutting machine. At the same time, the debris generated during the cutting process of the cutting machine is also easily inhaled by the operators, posing a certain threat to the physical and mental health of the operators. Based on this, this application proposes an on-line cutting tool for pipeline maintenance to achieve rapid on-line cutting of plastic pipelines and ensure the state of the pipe orifice after cutting, making it convenient for subsequent pipe connection operations. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an on-line cutting tool for pipeline maintenance, so as to achieve rapid on-line cutting of plastic pipelines during the pipeline maintenance process and ensure the state of the pipe orifice after cutting, facilitating subsequent pipe connection operations.
[0005] The utility model is realized through the following technical solutions:
[0006] An on-line cutting tool for pipeline maintenance includes two U-shaped frames arranged side by side. At the front ends of the U-shaped frames, two groups of pairs of wheels are provided respectively. At the rear ends of the U-shaped frames, hollow tubes are connected respectively. The rear ends of the two hollow tubes are commonly connected to a strip-shaped plate. At the left and right ends of the strip-shaped plate, holding rods are connected respectively. A first adjusting rod and a second adjusting rod are respectively penetrated through the two hollow tubes. A cutting wheel is provided at the front end of the first adjusting rod, and a pressing wheel is provided at the front end of the second adjusting rod. The rear ends of the first adjusting rod and the second adjusting rod are commonly connected to a cross plate. An adjusting assembly for realizing the forward and backward movement of the cutting wheel and the pressing wheel is provided between the cross plate and the strip-shaped plate.
[0007] When the on-line cutting tool for pipeline maintenance disclosed by the utility model cuts a plastic pipeline, the cutting wheel and the extrusion wheel are first moved backward and adjusted through the adjusting assembly, so as to conveniently place the pipeline between the cutting wheel and the two pairs of wheels and between the extrusion wheel and the two pairs of wheels. Then, the adjusting assembly is operated in the reverse direction to clamp the pipeline between the cutting wheel and the two pairs of wheels and between the extrusion wheel and the two pairs of wheels. During the clamping process, the cutting wheel will first contact the outer surface of the pipeline until the annular cutting edge part of the cutting wheel extends into the pipeline, and at this time, the extrusion wheel just contacts the pipeline. Subsequently, the operator holds the grip bars with both hands and rotates the whole cutting tool around the pipeline by 360°. During the rotation process, the annular cutting edge part of the cutting wheel is used to complete the 360° circumferential cutting of the pipeline.
[0008] As a further setting of the above solution, the adjusting assembly includes a nut block arranged on the cross plate. An adjusting screw is screwed in the nut block. The front end of the adjusting screw is connected to the strip plate, and a rotating and screwing part is arranged at the rear end of the adjusting screw.
[0009] As a further setting of the above solution, the two pairs of wheels at the front end of each U-shaped frame are arranged at intervals up and down. The cutting wheel and the extrusion wheel are both arranged on the vertical line connecting the centers of the two pairs of wheels.
[0010] As a further setting of the above solution, the diameter of the extrusion wheel is set to be smaller than that of the cutting wheel.
[0011] As a further setting of the above solution, a layer of rubber soft layer is sleeved on the outer surface of the grip bar.
[0012] As a further setting of the above solution, the distance between the two U-shaped frames is set not to exceed 30 cm. Beneficial effects
[0013] The on-line cutting tool for pipeline maintenance disclosed by this patent has a simple structural design and is convenient to use and operate. Moreover, when cutting a plastic pipeline, the clamping action of the extrusion wheel and the pair of wheels serves as a rotating support point on the side, and then the cutting wheel is used to cut the pipeline during the rotation process, making the whole pipeline cutting process stable as a whole, and the cut pipeline is flat, which is convenient for subsequent pipe connection operations.
[0014] When the on-line cutting tool for pipeline maintenance disclosed by this patent is in use, the operator holds the left and right grip bars with both hands and rotates around the pipeline by 360° to complete the cutting of the pipeline. During the whole cutting process, both hands can exert force, making the pipeline cutting operation easier, and its on-line cutting effect during pipeline maintenance is very excellent. Description of the drawings
[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these attached drawings.
[0016] Figure 1 Is a three-dimensional structure diagram when the present utility model is in use;
[0017] Figure 2 Is a three-dimensional structure diagram of the present utility model;
[0018] Figure 3 Is a three-dimensional assembly structure diagram of the present utility model;
[0019] Figure 4 Is a side view plane structure diagram when the present utility model is in use. Specific embodiments
[0020] In order to enable those skilled in the art to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the attached drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.
[0021] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will refer to the attached Figures 1 to 4 And will describe the present application in detail in conjunction with the embodiments. Embodiment 1
[0022] Embodiment 1 discloses an on-line cutting tool for pipeline maintenance. Referring to the attached Figure 1 and the attached Figure 2 and the attached Figure 3 , it includes two U-shaped frames 1 arranged side by side. Specifically, the distance between the two U-shaped frames 1 is set between 15 and 30 cm. Of course, for some narrow spaces, the distance between the two can be set within 10 cm. At the front ends of the two U-shaped frames 1, two sets of pairs of wheels 2 are provided, and the two sets of pairs of wheels 2 are arranged at intervals up and down, so that when cutting the pipeline, one end of the pipeline abuts between the two sets of pairs of wheels 2.
[0023] At the rear ends of two U-shaped frames 1, a hollow tube 3 is connected. At the same time, through holes aligned with the hollow tube 3 are also provided at the rear ends of the U-shaped frames 1. Then, a strip-shaped plate 4 is commonly connected to the rear ends of the two hollow tubes 3. A first adjusting rod 5 is inserted through one of the hollow tubes 3. Then, at the end of the first adjusting rod 5 extending into the U-shaped frame 1, a cutting wheel 6 is connected, and the center of the cutting wheel 6 is set on the vertical line connecting the centers of the two sets of counter wheels 2. A second adjusting rod 7 is inserted through the other hollow tube 3. Then, at the end extending into the U-shaped frame 1, a pressing wheel 8 is connected, and the center of the pressing wheel 8 is also set on the vertical line connecting the centers of the two sets of counter wheels 2.
[0024] In addition, the wheel diameter of the pressing wheel 8 is smaller than that of the cutting wheel 6. When the cutting wheel 6 and the pressing wheel 8 move towards the corresponding two sets of counter wheels 2 at the same time, the pressing wheel 8 abuts against the outer circular surface of the pipe, while the annular cutting edge part of the cutting wheel 6 has extended into the interior of the pipe.
[0025] At the rear ends where the first adjusting rod 5 and the second adjusting rod 7 extend out of the strip-shaped plate 4, a cross plate 9 parallel to the strip-shaped plate 4 is commonly connected. At the center of the cross plate 9, a nut block 10 is welded. Then, an adjusting screw 11 is threadedly connected in the nut block 10. The front end of the adjusting screw 11 is connected to the strip-shaped plate 4, and a convenient-to-operate screwing part 12 is connected to its rear end. By rotating the screwing part 12, the cross plate 9 can be pushed to move closer to or farther away from the strip-shaped plate 4, thereby achieving the simultaneous adjustment of the advancing or retracting distances of the first adjusting rod 5 and the second adjusting rod 7.
[0026] Finally, in this embodiment, a grip rod 13 is welded to each of the left and right ends of the strip-shaped plate 4, and the grip rod 13 is parallel to the strip-shaped plate 4. A layer of rubber soft layer 14 is sleeved on the outer surface of each grip rod 13, making the whole tool more comfortable and convenient to use.
[0027] When the on-line cutting tool for pipeline maintenance disclosed in this embodiment is in use, first rotate the screwing part 12 so that under the action of the adjusting screw 11 and the nut block 10, the cross plate 9 moves away from the side of the strip plate 4. At this time, the cross plate 9 will simultaneously drive the first adjusting rod 5, the second adjusting rod 7, the cutting wheel 6 and the pressing wheel 8 away from the front idler wheel 2. Then place the pipeline part to be cut in the two U-shaped frames 1, and make the pipeline 100 stuck on the two groups of idler wheels 2. At this time, rotate the screwing part 12 in the reverse direction so that the cross plate 9 moves closer to the side of the strip plate 4. At this time, the cutting wheel 6 and the pressing wheel 8 will move towards the pipeline 100, and the cutting wheel 6 will first contact the pipeline. Until the annular cutting edge part of the cutting wheel 6 extends into the pipeline interior, the pressing wheel 8 just abuts against the outer surface of the pipeline. Subsequently, the user holds the grip bars 13 on both sides with both hands and rotates 360° around the pipeline 100. During the rotation, the pressing wheel 8 and the two groups of idler wheels play a role of rotational support, while the annular cutting edge part of the cutting wheel 6 rotates and cuts 360° around the pipeline 100. When the pipeline 100 is cut off, rotate the screwing part 12 again to release the clamping effect on the pipeline.
[0028] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A pipeline maintenance online cutting tool, characterized in that: The invention comprises two U-shaped frames arranged side by side, the front ends of the U-shaped frames are each provided with two sets of wheels, the rear ends of the U-shaped frames are each connected with a hollow tube, the rear ends of the two hollow tubes are commonly connected with a strip plate, the left and right ends of the strip plate are each connected with a grip rod, the two hollow tubes are respectively penetrated by a first adjusting rod and a second adjusting rod, the front end of the first adjusting rod is provided with a cutting wheel, the front end of the second adjusting rod is provided with an extruding wheel, the rear ends of the first adjusting rod and the second adjusting rod are commonly connected with a cross plate, and an adjusting component for realizing the forward and backward movement of the cutting wheel and the extruding wheel is provided between the cross plate and the strip plate.
2. The pipeline maintenance online cutting tool according to claim 1, characterized in that: The adjusting assembly comprises a nut block arranged on the transverse plate, an adjusting screw is screwed in the nut block, the front end of the adjusting screw is connected to the strip plate, and the rear end of the adjusting screw is provided with a rotating screwing part.
3. The pipeline maintenance online cutting tool according to claim 1, characterized in that: The two pairs of wheels at the front end of each U-shaped frame are arranged at intervals up and down, and the cutting wheel and the extrusion wheel are arranged on a vertical line connecting the centers of the two pairs of wheels.
4. The pipeline maintenance online cutting tool according to claim 1, characterized in that: The wheel diameter of the extrusion wheel is smaller than the wheel diameter of the cutting wheel.
5. The pipeline maintenance online cutting tool according to claim 1, characterized in that: The outer surface of the grip rod is covered with a soft rubber layer.
6. The pipeline maintenance online cutting tool according to claim 1, characterized in that: The distance between the two U-shaped frames is no more than 30 cm.