A device and method for quickly completing PE pipe electric melting by using air bag blocking

Abstract

The present invention relates to the technical field of PE pipe electric melting, and discloses a device and a method for using the PE pipe electric melting quickly by using the air bag blocking, the device comprises a main pipeline and an inflatable air bag, the right side of the main pipeline is fixedly connected with a secondary pipeline through a reducer, the outer surface of the secondary pipeline is provided with a valve, the outer surface of the main pipeline is provided with a pipeline valve, the top of the pipeline valve is provided with a switch control ring, the inner surface of the switch control ring is provided with a control rod, the outer surface of the main pipeline is fixedly connected with a connecting ring located near the reducer, the right side of the connecting ring is fixedly connected with a mounting ring through a connecting rod, and the front and back sides of the mounting ring are both threadedly connected with a control screw. The present invention achieves the effect of reducing the impact by solving the problem of quickly completing pipeline welding in a narrow space and avoiding long-term water outage.

Description

Technical Field

[0001] The invention relates to the technical field of PE pipe electric melting, and in particular to a device and a use method for quickly completing PE pipe electric melting by using air bag blocking. Background Art

[0002] With the continuous advancement of urbanization, the areas under the jurisdiction of each urban area are getting larger and larger, and the water pressure loss in the water supply network is relatively serious. Suburban areas often have difficulty in getting water because they are at the end of the water supply network, and are eager to upgrade and renovate the original network in a short period of time.

[0003] Because the original pipe fittings are quite old, most of them are about 30 years old, and the valves are rusted to varying degrees and cannot be opened and closed normally and completely. The traditional construction method requires the removal of the valve well and the flange on one side of the valve. The demolition area of ​​the sidewalk or green area is large, the subsequent restoration work is large, and the construction time is long. Summary of the invention

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for quickly completing PE pipe electric melting by using air bag blocking, comprising a main pipeline and an inflatable air bag, wherein the right side of the main pipeline is fixedly connected with a secondary pipeline through a diameter reducing portion, a valve is arranged on the outer surface of the secondary pipeline, a pipeline valve is arranged on the outer surface of the main pipeline, a switch control ring is arranged on the top of the pipeline valve, a control rod is arranged on the inner surface of the switch control ring, a connecting ring located on the side close to the diameter reducing portion is fixedly connected to the outer surface of the main pipeline, a mounting ring is fixedly connected to the right side of the connecting ring through a connecting rod, a control screw is threadedly connected to the front and back sides of the mounting ring, and the ends of the two control screws close to each other penetrate the mounting ring and are fixedly connected with a rotating The movable plate has an annular groove on its outer surface, and limit plates located on the upper and lower sides of the control screw are fixedly connected to the inner surfaces of the front and back sides of the mounting ring, and a sliding groove is provided on the right side of the limit plate, and the inner surfaces of the sliding grooves on both sides of the rotating plate are slidably connected to the same transmission rod, and the sides of the two transmission rods on the front and back sides that are away from each other are slidably connected to the inner surface of the annular groove through the sliding rod, and the sides of the two rotating rods on the front and back sides that are close to each other are fixedly connected to a force ring, and an extrusion rod is provided on the right side of the force ring, and the right end of the extrusion rod is fixedly connected to a pressing plate, and the left end of the extrusion rod passes through the force ring and is fixedly connected to a rubber extrusion plate.

[0006] Preferably, the top of the main pipeline is fixedly connected to two fixed slide rails located on the left and right sides of the pipeline valve, the two fixed slide rails are fixed to the main pipeline by clamps, the inner surfaces of the two fixed slide rails close to each other are slidably connected to the same stabilizing ring, the inner surface of the stabilizing ring is rotatably connected to a force application plate via an installed bearing seat, the top of the force application plate is fixedly connected to a control handle, one side of the control handle is threadedly connected to a fixing screw via a connecting plate, the bottom of the force application plate is fixedly connected to two symmetrical force rods, and a fixing threaded hole is provided at the top of the stabilizing ring.

[0007] Preferably, the number of the control rods is not less than five, and the control rods are arranged in a ring array.

[0008] Preferably, the number of the fixing threaded holes is not less than ten, the fixing threaded holes are in a circular array, and the inflatable airbag is adapted to the inner diameter of the main pipe.

[0009] Another technical problem to be solved by the present invention is to provide a method for using a device for quickly completing PE pipe electric melting by using airbag blocking, comprising the following steps:

[0010] S1. Close the main valve and cut off the original pipeline at the diameter change point.

[0011] S2. Depending on the original length of the main pipeline and the degree of closure of the pipeline valve, insert one or more inflatable air bags into the original main pipeline.

[0012] S3. Adjust the installed pipe fittings, current and voltage, and complete the electric fusion within 600 to 900 seconds.

[0013] S4. After the electric fusion is completed, remove the inflatable airbag from the flange on one side of the valve of the secondary pipeline, install the blind plate in time, then open the original valve and inject water to check the quality of the electric fusion.

[0014] S5. After there is no water seepage or leakage, remove the blind plate and install the DN300 gate valve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention achieves the effect of reducing the impact by solving the problem of quickly completing pipe welding in a narrow space and avoiding long-term water outage.

[0017] The present invention can improve the efficiency of diameter change jointing through the diameter change device and reduce the damage to the diameter change surface caused by conventional practices.

[0018] The present invention uses the force plate and the force rod to effectively limit the rotation angle of the switch control ring by being inserted between the control rods, thereby achieving the effect of avoiding misoperation, and the rotation of the switch control ring can be quickly controlled by turning the handle, thereby achieving the effect of improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the inflatable airbag of the present invention;

[0021] Figure 3 It is a right view structural schematic diagram of the control screw of the present invention;

[0022] Figure 4 It is a schematic diagram of the top view structure of the stabilizing ring of the present invention;

[0023] Figure 5 It is a schematic diagram of the top view structure of the switch control ring of the present invention.

[0024] Figure 6 The present invention Figure 1 Middle AA section view;

[0025] In the figure: 1. main pipeline; 2. reducing part; 3. secondary pipeline; 4. pipeline valve; 5. inflatable airbag; 6. switch control ring; 7. control rod; 8. fixed slide rail; 9. stabilizing ring; 10. mounting bearing seat; 11. force plate; 12. control handle; 13. fixed threaded hole; 14. fixed screw; 15. force rod; 16. connecting plate; 17. connecting ring; 18. mounting ring; 19. control screw; 20. rotating disk; 21. annular groove; 22. limit plate; 23. sliding groove; 24. transmission rod; 25. force ring; 26. extrusion rod; 27. pressing disk; 28. extrusion plate; 29. ​​clamp. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Reference Figure 1-5A device for quickly completing PE pipe electric melting by using airbag blocking, comprising a main pipeline 1 and an inflatable airbag 5, a secondary pipeline 3 is fixedly connected to the right side of the main pipeline 1 through a reducer 2, a valve is arranged on the outer surface of the secondary pipeline 3, a pipeline valve 4 is arranged on the outer surface of the main pipeline 1, a switch control ring 6 is arranged on the top of the pipeline valve 4, a control rod 7 is arranged on the inner surface of the switch control ring 6, the number of the control rods 7 is not less than five, and the control rods 7 are in a ring array, a connecting ring 17 located on the side close to the reducer 2 is fixedly connected to the outer surface of the main pipeline 1, a mounting ring 18 is fixedly connected to the right side of the connecting ring 17 through a connecting rod, a control screw 19 is threadedly connected to the front and back sides of the mounting ring 18, and the ends of the two control screws 19 close to each other are both fixed through the mounting ring 18 A rotating disk 20 is connected, and an annular groove 21 is provided on the outer surface of the rotating disk 20. Limit plates 22 located on the upper and lower sides of the control screw 19 are fixedly connected to the inner surfaces of the front and back sides of the mounting ring 18. A sliding groove 23 is provided on the right side of the limit plate 22. The inner surfaces of the sliding grooves 23 on both sides of the rotating disk 20 are slidably connected with the same transmission rod 24. The sides of the front and back transmission rods 24 that are away from each other are slidably connected to the inner surface of the annular groove 21 through the sliding rod. The sides of the front and back rotating rods 24 that are close to each other are fixedly connected with a force ring 25. An extrusion rod 26 is arranged on the right side of the force ring 25. The right end of the extrusion rod 26 is fixedly connected to a pressing disk 27, and the left end of the extrusion rod 26 passes through the force ring 25 and is fixedly connected to a rubber extrusion plate 28.

[0029] The top of the main pipeline 1 is fixedly connected with two fixed slide rails 8 located on the left and right sides of the pipeline valve 4, and the two fixed slide rails 8 are fixed to the main pipeline 1 by clamps 29. The inner surfaces of the two fixed slide rails 8 on the side close to each other are slidably connected with the same stabilizing ring 9, and the inner surface of the stabilizing ring 9 is rotatably connected with a force application plate 11 through the installation of a bearing seat 10. The top of the force application plate 11 is fixedly connected with a control handle 12, and one side of the control handle 12 is threadedly connected with a fixing screw 14 through a connecting plate 16. The bottom of the force application plate 11 is fixedly connected with two symmetrical force application rods 15. A fixed threaded hole 13 is opened on the top of the stabilizing ring 9, and the number of the fixed threaded holes 13 is not less than ten. The fixed threaded holes 13 are in a ring array, and the inflatable airbag 5 is adapted to the inner diameter of the main pipeline 1.

[0030] Another technical problem to be solved by the present invention is to provide a method for using a device for quickly completing PE pipe electric melting by using airbag blocking, comprising the following steps:

[0031] S1. Close the main valve and cut off the original pipeline at the diameter change point.

[0032] S2. Depending on the original length of the main pipeline 1 and the degree of closure of the pipeline valve 4, one or more inflatable air bags 5 are inserted into the original main pipeline 1.

[0033] S3. Adjust the installed pipe fittings, current and voltage, and complete the electric fusion within 600 to 900 seconds.

[0034] S4. After the electric fusion is completed, take out the inflatable airbag 5 from the flange on one side of the valve of the secondary pipeline 3, install the blind plate in time, then open the original valve and inject water to check the quality of the electric fusion.

[0035] S5. After there is no water seepage or leakage, remove the blind plate and install the DN300 gate valve.

[0036] In the present invention, the pipe welding is completed quickly in a narrow space and a long-term water outage is avoided, thereby achieving the effect of reducing the impact.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A device for quickly completing PE pipe electric melting by using airbag blocking, comprising a main pipeline (1) and an inflatable airbag (5), characterized in that: The right side of the main pipeline (1) is fixedly connected to a secondary pipeline (3) via a diameter reducing portion (2); a valve is provided on the outer surface of the secondary pipeline (3); a pipeline valve (4) is provided on the outer surface of the main pipeline (1); a switch control ring (6) is provided on the top of the pipeline valve (4); a control rod (7) is provided on the inner surface of the switch control ring (6); a connecting ring (17) located on a side close to the diameter reducing portion (2) is fixedly connected to the outer surface of the main pipeline (1); a mounting ring (18) is fixedly connected to the right side of the connecting ring (17) via a connecting rod; control screws (19) are threadedly connected to the front and back sides of the mounting ring (18); the ends of the two control screws (19) that are close to each other penetrate the mounting ring (18) and are fixedly connected to a rotating disk (20); an annular groove ( 21), the inner surfaces of the front and back sides of the mounting ring (18) are fixedly connected with limit plates (22) located on the upper and lower sides of the control screw (19), the right side of the limit plate (22) is provided with a sliding groove (23), the inner surfaces of the sliding grooves (23) on both sides of the rotating disk (20) are slidably connected with the same transmission rod (24), the sides of the two transmission rods (24) on the front and back sides that are away from each other are slidably connected to the inner surface of the annular groove (21) through the sliding rod, the sides of the two transmission rods (24) on the front and back sides that are close to each other are fixedly connected with a force ring (25), the right side of the force ring (25) is provided with an extrusion rod (26), the right end of the extrusion rod (26) is fixedly connected with a pressing plate (27), and the left end of the extrusion rod (26) passes through the force ring (25) and is fixedly connected with a rubber extrusion plate (28).

2. The device for quickly completing PE pipe electric melting by using airbag blocking according to claim 1 is characterized in that: The top of the main pipeline (1) is fixedly connected to two fixed slide rails (8) located on the left and right sides of the pipeline valve (4); the two fixed slide rails (8) are fixed to the main pipeline (1) through clamps (29); the inner surfaces of the two fixed slide rails (8) close to each other are slidably connected to the same stabilizing ring (9); the inner surface of the stabilizing ring (9) is rotatably connected to a force application disk (11) through a bearing seat (10); the top of the force application disk (11) is fixedly connected to a control handle (12); one side of the control handle (12) is threadedly connected to a fixing screw (14) through a connecting plate (16); the bottom of the force application disk (11) is fixedly connected to two symmetrical force application rods (15); and the top of the stabilizing ring (9) is provided with a fixing threaded hole (13).

3. The device for quickly completing PE pipe electric melting by using airbag blocking according to claim 1 is characterized in that: The number of the control rods (7) is no less than five, and the control rods (7) are arranged in a ring array.

4. The device for quickly completing PE pipe electric melting by using airbag blocking according to claim 2 is characterized in that: The number of the fixing threaded holes (13) is not less than ten, and the fixing threaded holes (13) are arranged in a circular array. The inflatable airbag (5) is adapted to the inner diameter of the main pipeline (1).

5. The method for using the device for quickly completing PE pipe electric melting by using air bag blocking as described in any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Close the main valve and cut off the original pipeline at the diameter change point; S2. Depending on the length of the original main pipeline (1) and the degree of closure of the pipeline valve (4), one or more inflatable air bags (5) are inserted into the original main pipeline (1); S3, adjust the installation pipe fittings, adjust the current and voltage, and complete the electric fusion within 600 to 900 seconds; S4. After the electric fusion is completed, the inflatable airbag (5) is removed from the flange on one side of the valve of the secondary pipeline (3), and a blind plate is installed in time. Then, the original valve is opened and water is injected to check the quality of the electric fusion; S5. After there is no water seepage or leakage, remove the blind plate and install the DN300 gate valve.

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