Natural gas pipeline cut-off device
By using a support structure of extrusion wheels and multiple limit frames in the natural gas pipeline cut-off device, the problem of deformation of the pipeline during the cutting process is solved, and the stability and smoothness of the pipeline are improved.
Patent Information
- Application Number
- CN202421282175.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During the cutting process of the existing natural gas pipeline cutoff device, deformation will occur at the pipe connection, resulting in tilting and uneven pipelines.
A natural gas pipeline cut-off device is designed, using an extrusion wheel to contact the pipeline, and the pipeline is supported through multiple limit frames to ensure that the pipelines on both sides of the cutting are balanced. When the spray gun cuts the pipe, the support structure of the limit frame and the design of the extrusion wheel avoid deformation of the pipe during the cutting process.
It effectively reduces the deformation of the pipe at the connection during the cutting process, improves the stability of the movement of the cut-off device on the pipe, and ensures the smoothness of the pipe and the stability of the connection.
Smart Images
Figure CN222643466U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cut-off devices, in particular to a natural gas pipeline cut-off device. Background Art
[0002] The pipe cutting device is a device used to adjust the length of the pipe when it is laid out during construction. It generally adopts saw blade cutting, flame cutting and laser cutting, etc. At the same time, partial cutting will cut the cross section into a specific shape, so that the cut pipe can be better assembled with different pipes.
[0003] The existing pipeline cutting and truncation method adopts flame cutting, in which a cutting device is first installed on the pipeline, and then the cutting and truncation device is controlled to move on the pipeline to achieve truncation of the pipeline.
[0004] During the existing pipeline cutting, a groove will appear in the middle of the pipeline as the cutting device moves on the pipeline. During the cutting process of the cutting device, when the pipeline is not completely cut off, the number of connections of the pipeline gradually decreases. Under the action of the pipeline's own gravity, one side of the pipeline will tilt downward, causing the pipe wall at the uncut part of the pipeline to deform, resulting in pipeline deformation problems.
[0005] To this end, the utility model provides a natural gas pipeline cutting device. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the utility model to solve its technical problems is: a natural gas pipeline cut-off device described in the utility model includes a cut-off device body; a spray gun is installed on the side wall of the cut-off device body; a support rod is fixedly connected to the side wall of the cut-off device body; the end of the support rod is fixedly connected to a limiting frame; there are multiple limit frames; a connecting rod is fixedly connected between the multiple limit frames; multiple fixed seats are fixedly connected to the middle of the limit frame; the end of the fixed seat is set toward the center of the limit frame; the end of the fixed seat is rotatably connected to an extrusion wheel. The contact between the extrusion wheel and the pipeline improves the stability of the cut-off device body and the limit frame when moving on the pipeline; the support setting of the pipeline by multiple limit frames can control the pipelines on both sides of the cutting position to maintain balance when the spray gun cuts the pipeline, thereby reducing the deformation of the pipeline connection during the cutting process.
[0008] Preferably, both sides of the fixed seat are fixed with an articulated seat; the middle part of the articulated seat is rotatably connected to a hinged rod through a torsion spring; the end of the articulated rod is rotatably connected to an adjusting roller; by connecting the articulated rod with the torsion spring on both sides of the fixed seat, when the limit frame is installed on the pipeline, the articulated rod is first unfolded on both sides of the fixed seat, and then when the extrusion wheel is against the pipeline, the articulated rod is released, and the adjusting roller can contact the pipeline wall at this time, and by setting the adjusting roller as a long strip, the relative position of the limit frame and the pipeline is made more stable, and the movement obstruction problem caused by the displacement of the limit frame on the pipeline is reduced; when the limit frame is installed on a pipeline with a slightly smaller diameter, the adjusting roller can be folded toward the bottom of the extrusion wheel under the action of the torsion spring, and then contact with pipelines of different sizes, so that the limit frame can control and support different pipelines.
[0009] Preferably, the middle part of the limit frame is hollow; a plurality of nozzles are provided in the middle part of the limit frame; the nozzles are arranged toward the extrusion wheel; a water injection pipe is connected to the middle part of the limit frame; when in use, the water injection pipe is first connected to the water pump, and by setting the limit frame to be hollow, water can be injected into the limit frame through the water injection pipe when the extrusion wheel moves on the pipeline, and then the liquid can be sprayed out from the nozzles, sprayed onto the pipeline and the surface of the extrusion wheel, and metal chips on the surface of the extrusion wheel are washed away, thereby improving the stability of the extrusion wheel during rotation and reducing the jamming of the extrusion wheel on the fixed seat, which causes wear problems on the extrusion wheel and the pipeline.
[0010] Preferably, a protective cover is fixedly connected to the middle of the spray gun; the end of the protective cover is arranged in an arc shape; the top of the protective cover is connected to an air pipe; the air pipe is first connected to the blower, and by arranging a protective cover and an air pipe at the output end of the spray gun, when the spray gun cuts the pipeline, the protective cover can reduce the splashing of metal chips caused by cutting, which may affect the working problems of the limit frame and the extrusion wheel. At the same time, the setting of the air pipe can supply air to the inside of the protective cover during the process of the spray gun cutting the pipeline, and discharge the smoke and metal chips inside the protective cover along the pipe wall, thereby reducing the problem of the melted metal chips staying on the pipe wall and the uneven surface.
[0011] Preferably, a plurality of baffles are fixedly connected to the inner wall of the protective cover; the ends of the baffles are arranged to be inclined upward; by arranging the inclined baffles inside the protective cover, when the spray gun cuts the pipe and metal chips splash, the falling metal chips can be intercepted, thereby reducing the problem of uneven pipe wall caused by metal chips falling directly on the pipe wall.
[0012] Preferably, a protective net is fixedly connected to the inner wall of the top of the protective cover; the protective net covers the output end of the gas pipe; by providing a protective net at the output end of the gas pipe, it is possible to reduce the problem of flying metal chips entering the gas pipe and blocking the gas pipe, thereby affecting the gas supply of the gas pipe.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The natural gas pipeline cutting device described in the utility model improves the stability of the cutting device body and the limit frame when moving on the pipeline through the contact between the extrusion wheel and the pipeline; through the support arrangement of multiple limit frames for the pipeline, when the spray gun cuts the pipeline, the pipelines on both sides of the cutting position can be controlled to maintain balance, thereby reducing the deformation of the pipeline connection during the cutting process.
[0015] 2. The natural gas pipeline cut-off device described in the utility model, by setting the limit frame to be hollow, can inject water into the limit frame through the water injection pipe when the extrusion wheel moves on the pipeline, and then the liquid can be sprayed out from the nozzle and sprayed onto the pipeline and the surface of the extrusion wheel to wash away the metal chips on the surface of the extrusion wheel, thereby improving the stability of the extrusion wheel during rotation and reducing the jamming of the extrusion wheel on the fixed seat, which causes the wear problem of the extrusion wheel and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model will be further described below in conjunction with the accompanying drawings.
[0017] Figure 1 It is a schematic diagram of the matching structure of the cutting device and the pipeline in the utility model;
[0018] Figure 2 It is a schematic diagram of the matching structure of the limit frame and the extrusion wheel in the utility model;
[0019] Figure 3 It is a cross-sectional view of the limiting frame in the utility model;
[0020] Figure 4 It is a schematic diagram of the matching structure of the extrusion wheel and the adjusting roller in the utility model;
[0021] Figure 5 It is a schematic diagram of the matching structure of the spray gun and the protective cover in the utility model;
[0022] In the figure: 1. Cutting device body; 11. Spray gun; 12. Support rod; 13. Limiting frame; 14. Connecting rod; 15. Fixed seat; 16. Extrusion wheel; 2. Articulated seat; 21. Articulated rod; 22. Adjusting roller; 3. Spout; 31. Water injection pipe; 4. Protective cover; 41. Air pipe; 5. Baffle; 6. Protective net. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] like Figures 1 to 4As shown, a natural gas pipeline cut-off device described in an embodiment of the utility model comprises a cut-off device body 1; a spray gun 11 is installed on the side wall of the cut-off device body 1; a support rod 12 is fixedly connected to the side wall of the cut-off device body 1; the end of the support rod 12 is fixedly connected to a limiting frame 13; the limiting frames 13 are multiple; a connecting rod 14 is fixedly connected between the multiple limiting frames 13; a plurality of fixing seats 15 are fixedly connected to the middle of the limiting frame 13; the end of the fixing seat 15 is arranged toward the center of the limiting frame 13; the end of the fixing seat 15 is rotatably connected to an extrusion wheel 16. During operation, when it is necessary to cut the pipe, the cutting device body 1 is installed to the middle of the pipe, and the limiting frame 13 is sleeved on the pipe. Then the spray gun 11 can be turned on. At this time, the cutting device body 1 and the spray gun 11 rotate on the pipe, so that the spray gun 11 cuts and cuts the pipe. Because the limiting frame 13 is fixedly connected to the cutting device body 1 through the support rod 12, when the cutting device body 1 and the spray gun 11 move, the extrusion wheel 16 in the middle of the limiting frame 13 will roll on the pipe. At the same time, there are multiple limiting frames 13, and the limiting frames 13 are arranged on both sides of the output end of the spray gun 11 to support the pipe. Through the contact between the extrusion wheel 16 and the pipe, the stability of the cutting device body 1 and the limiting frame 13 when moving on the pipe is improved; through the support setting of multiple limiting frames 13 on the pipe, when the spray gun 11 cuts the pipe, the pipes on both sides of the cutting position can be controlled to maintain balance, thereby reducing the deformation of the pipe connection during the cutting process.
[0025] like Figure 4 As shown, both sides of the fixed seat 15 are fixed with an articulated seat 2; the middle part of the articulated seat 2 is rotatably connected with an articulated rod 21 through a torsion spring; the end of the articulated rod 21 is rotatably connected with an adjusting roller 22; by connecting the articulated rod 21 with the torsion spring on both sides of the fixed seat 15, when the limit frame 13 is installed on the pipeline, the articulated rod 21 can be first unfolded on both sides of the fixed seat 15, and then when the extrusion wheel 16 is against the pipeline, the articulated rod 21 is released, and the adjusting roller 22 can contact the pipeline wall at this time, and the adjusting roller 22 is set as a long strip, so that the relative position of the limit frame 13 and the pipeline is more stable, and the movement obstruction problem caused by the displacement of the limit frame 13 on the pipeline is reduced; when the limit frame 13 is installed on a pipeline with a slightly smaller diameter, the adjusting roller 22 can be folded to the bottom of the extrusion wheel 16 under the action of the torsion spring, and then contact with pipelines of different sizes, so that the limit frame 13 can be controlled and supported for different pipelines.
[0026] like Figure 3 to Figure 4As shown, the middle part of the limit frame 13 is hollow; a plurality of nozzles 3 are provided in the middle part of the limit frame 13; the nozzles 3 are arranged toward the extrusion wheel 16; a water injection pipe 31 is connected to the middle part of the limit frame 13; when in use, the water injection pipe 31 is first connected to the water pump, and by setting the limit frame 13 to be hollow, water can be injected into the limit frame 13 through the water injection pipe 31 when the extrusion wheel 16 moves on the pipeline, and then the liquid can be sprayed out from the nozzle 3, sprayed onto the surface of the pipeline and the extrusion wheel 16, and the metal chips on the surface of the extrusion wheel 16 are washed away, thereby improving the stability of the extrusion wheel 16 when rotating, and reducing the jamming of the extrusion wheel 16 on the fixing seat 15, which causes the extrusion wheel 16 and the pipeline to wear.
[0027] like Figure 5 As shown, a protective cover 4 is fixedly connected to the middle of the spray gun 11; the end of the protective cover 4 is arranged in an arc shape; the top of the protective cover 4 is connected to an air supply pipe 41; when in use, the air supply pipe 41 is first connected to the blower, and by providing the protective cover 4 and the air supply pipe 41 at the output end of the spray gun 11, when the spray gun 11 cuts the pipeline, the protective cover 4 can reduce the splashing of metal chips caused by cutting, which may affect the working problems of the limit frame 13 and the extrusion wheel 16. At the same time, the setting of the air supply pipe 41 can supply air to the inside of the protective cover 4 during the process of the spray gun 11 cutting the pipeline, and discharge the smoke and metal chips inside the protective cover 4 along the pipe wall, thereby reducing the problem of the melted metal chips staying on the pipe wall and the uneven surface.
[0028] like Figure 5 As shown, a plurality of baffles 5 are fixedly connected to the inner wall of the protective cover 4; the end of the baffle 5 is arranged to be inclined upward; by arranging the inclined baffle 5 inside the protective cover 4, when the spray gun 11 cuts the pipeline and metal chips splash, the falling metal chips can be intercepted, thereby reducing the problem of uneven pipe wall caused by metal chips falling directly on the pipe wall.
[0029] like Figure 5 As shown, a protective net 6 is fixedly connected to the inner wall of the top of the protective cover 4; the protective net 6 covers the output end of the gas pipe 41; by providing the protective net 6 at the output end of the gas pipe 41, it is possible to reduce the problem of splashing metal chips entering the gas pipe 41 and blocking the gas pipe 41, thereby affecting the gas supply of the gas pipe 41.
[0030] During operation, when it is necessary to cut the pipe, the cutting device body 1 is installed to the middle of the pipe, and the limiting frame 13 is sleeved on the pipe. Then the spray gun 11 can be turned on. At this time, the cutting device body 1 and the spray gun 11 rotate on the pipe, so that the spray gun 11 cuts and cuts the pipe. Because the limiting frame 13 is fixedly connected to the cutting device body 1 through the support rod 12, when the cutting device body 1 and the spray gun 11 move, the extrusion wheel 16 in the middle of the limiting frame 13 will roll on the pipe. At the same time, there are multiple limiting frames 13, and the limiting frames 13 are arranged on both sides of the output end of the spray gun 11 to support the pipe. Through the contact between the extrusion wheel 16 and the pipe, the cutting device body 1 and the limiting frame 13 are lifted and moved on the pipe. The stability is improved when the limit frame 13 is installed on the pipeline; the hinged rod 21 is connected with the torsion springs on both sides of the fixing seat 15, and the hinged rod 21 is first unfolded on both sides of the fixing seat 15 when the limit frame 13 is installed on the pipeline. Then, when the extrusion wheel 16 is against the pipeline, the hinged rod 21 is released, and the adjusting roller 22 can contact the pipeline wall at this time. The adjusting roller 22 is set as a long strip, so that the relative position of the limit frame 13 and the pipeline is more stable, and the movement obstruction problem caused by the deviation of the limit frame 13 on the pipeline is reduced; when the limit frame 13 is installed on a pipeline with a slightly smaller diameter, the adjusting roller 22 can be folded to the bottom of the extrusion wheel 16 under the action of the torsion spring, and then contact with pipelines of different sizes, so that the limit frame 13 can control and support different pipelines. When in use, first connect the water injection pipe 31 to the water pump. By setting the limit frame 13 to be hollow, water can be injected into the limit frame 13 through the water injection pipe 31 when the extrusion wheel 16 moves on the pipeline. Then the liquid can be sprayed out from the nozzle 3 and sprayed onto the surface of the pipeline and the extrusion wheel 16 to wash away the metal chips on the surface of the extrusion wheel 16, thereby improving the stability of the extrusion wheel 16 when rotating and reducing the jamming of the extrusion wheel 16 on the fixing seat 15, which may cause wear problems between the extrusion wheel 16 and the pipeline. When in use, the air supply pipe 41 is first connected to the blower. By providing a protective cover 4 and an air supply pipe 41 at the output end of the spray gun 11, when the spray gun 11 cuts the pipeline, the protective cover 4 can reduce the splashing of metal chips caused by cutting, which may affect the working of the limit frame 13 and the extrusion wheel 16. At the same time, the setting of the air supply pipe 41 can supply air to the inside of the protective cover 4 during the process of the spray gun 11 cutting the pipeline, and discharge the smoke and metal chips inside the protective cover 4 along the pipe wall, thereby reducing the problem of the melted metal chips staying on the pipe wall and the uneven surface. By providing an inclined baffle 5 inside the protective cover 4, when the spray gun 11 cuts the pipeline and metal chips splash, the falling metal chips can be intercepted, thereby reducing the problem of the metal chips falling directly on the pipe wall and the uneven pipe wall. By providing a protective net 6 at the output end of the air supply pipe 41, it is possible to reduce the splashing metal chips from entering the inside of the air supply pipe 41, thereby blocking the air supply pipe 41, and further affecting the air supply of the air supply pipe 41.
[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A natural gas pipeline cutting device, characterized in that: The invention comprises a cutting device body (1); a spray gun (11) is installed on the side wall of the cutting device body (1); a support rod (12) is fixedly connected to the side wall of the cutting device body (1); the end of the support rod (12) is fixedly connected to a limiting frame (13); the limiting frame (13) is provided in plurality; a connecting rod (14) is fixedly connected between the plurality of limiting frames (13); a plurality of fixing seats (15) are fixedly connected to the middle of the limiting frame (13); the end of the fixing seat (15) is arranged toward the center of the limiting frame (13); and the end of the fixing seat (15) is rotatably connected to an extrusion wheel (16).
2. A natural gas pipeline cutting device according to claim 1, characterized in that: Both sides of the fixed seat (15) are fixedly connected with an articulated seat (2); the middle of the articulated seat (2) is rotatably connected to an articulated rod (21) via a torsion spring; and the end of the articulated rod (21) is rotatably connected to an adjusting roller (22).
3. A natural gas pipeline cutting device according to claim 2, characterized in that: The middle of the limiting frame (13) is hollow; a plurality of nozzles (3) are provided in the middle of the limiting frame (13); the nozzles (3) are arranged toward the extrusion wheel (16); and the middle of the limiting frame (13) is connected to a water injection pipe (31).
4. A natural gas pipeline cutting device according to claim 3, characterized in that: A protective cover (4) is fixedly connected to the middle of the spray gun (11); the end of the protective cover (4) is arranged in an arc shape; and the top of the protective cover (4) is connected to an air supply pipe (41).
5. A natural gas pipeline cutting device according to claim 4, characterized in that: A plurality of baffles (5) are fixedly connected to the inner side wall of the protective cover (4); the ends of the baffles (5) are arranged to be inclined upward.
6. A natural gas pipeline cutting device according to claim 5, characterized in that: A protective net (6) is fixedly connected to the inner side wall of the top of the protective cover (4); the protective net (6) covers the output end of the gas transmission pipe (41).