Gas Pipeline Reconstruction Method Using Pipeline Installation Auxiliary Devices

Abstract

The present invention discloses a method for modifying a gas pipeline using a pipeline installation auxiliary device, including a pipeline installation auxiliary device arranged outside the guardrail of an aerial work vehicle or a hanging basket; the process is as follows: 1. Fix the bracket to the guardrail; 2. Set a bending and extension structure on the extension portion with a detachable connection, and set a pipeline grabber at the other end of the bending and extension structure; 3. Transport the processed pipeline to be replaced to the aerial work vehicle or the hanging basket; 4. Raise the aerial work vehicle or the hanging basket to the required height; 5. Hook the pipeline to be replaced with the pipeline grabber; 6. Adjust the bending and extension structure to move the pipeline to be replaced into place; 7. Install the pipeline to be replaced to the required position; 8. Open the second flexible connector on the pipeline grabber, remove it, and return it to its original position. The application of the present invention can overcome the problem of gas pipelines being difficult to circulate and position in an environment with narrow building spacing and high floors.

Description

Technical Field

[0001] The present invention relates to the technical field of gas pipeline modification, and in particular to a gas pipeline modification method using a pipeline installation auxiliary device. Background Art

[0002] In environments with narrow distances between buildings and high floors, when it is necessary to renovate the gas pipeline into the house, a large amount of high-altitude work needs to be completed.

[0003] However, the building's ring pipes need to be larger in diameter because the building is tall and has many users, and because the natural gas needs to be supplied at low pressure.

[0004] Moreover, in order to ensure the safety of gas pipelines and reduce safety accidents, it is necessary to reduce the number of pipe connection points such as threaded connections. Therefore, a large number of whole galvanized pipes will be used for installation. However, large-diameter galvanized pipes are too heavy to be lifted manually. At the same time, it is an aerial operation. If the pipes are lifted with difficulty, they may fall and cause unnecessary safety problems.

[0005] In addition, during construction, a large number of risers need to be installed. In this case, galvanized pipes larger than or equal to DN80 need to be connected by welding. It is very difficult for one worker to weld and another to keep the pipe in position.

[0006] Therefore, how to overcome the problem that gas pipelines are difficult to circulate and position in an environment with narrow building spacing and high floors has become a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0007] In view of the above-mentioned defects of the prior art, the present invention provides a gas pipeline modification method using a pipeline installation auxiliary device, the purpose of which is to overcome the problem that gas pipelines are difficult to flow and position in an environment with narrow building spacing and high floors.

[0008] To achieve the above-mentioned object, the present invention discloses a gas pipeline modification method using a pipeline installation auxiliary device, including a pipeline installation auxiliary device arranged outside the guardrail of an aerial work vehicle or a hanging basket;

[0009] The pipeline installation auxiliary device includes a bracket connected to the guardrail, a pipeline grabber for clamping the pipeline to be replaced, and a bending and elongating structure provided between the bracket and the pipeline grabber;

[0010] The bracket is made of a plurality of rods or profiles, one side of which is fixed to the guardrail by a clamp or fastener, and the middle of the other side is provided with an extension portion extending outward from the guardrail;

[0011] The outward extension portion is detachably connected to the bent and elongated structure;

[0012] The pipe grab hook includes a semicircular fixed hook and a movable hook;

[0013] Both ends of the fixed hook and the movable hook are connected to form a ring shape through two flexible connecting pieces;

[0014] A hook handle extending radially outward is provided on the outer side of the fixing hook at a position corresponding to the radial direction of the ring, and is detachably connected to the bent and elongated structure through the hook handle;

[0015] One end of the movable hook is a fixed end, connected to one end of the fixed hook through a flexible connector, and the other end is a movable end with an angled structure, connected to the other end of the fixed hook through a second flexible connector;

[0016] The connection between the second flexible connector and the movable hook, or between the second flexible connector and the fixed hook, is a detachable connection.

[0017] The gas pipeline renovation process is as follows:

[0018] Step 1: Fix the bracket to the guardrail;

[0019] Step 2: arranging the bending and extension structure on the extension portion in a detachable manner, and arranging the pipe grab hook at the other end of the bending and extension structure;

[0020] Step 3: transport the processed pipe to be replaced to the aerial work vehicle or hanging basket;

[0021] Step 4: Lift the aerial work vehicle or hanging basket to the required height;

[0022] Step 5: Open the detachable connection between the second flexible connector and the movable hook or between the movable hook on the pipe grabbing hook, pass the movable hook around the pipe to be replaced, and then close the detachable connection between the second flexible connector and the movable hook or between the movable hook to a fixed state;

[0023] Step 6: Adjust the bending and stretching structure to move the pipe to be replaced into place;

[0024] Step 7: Install the pipe to be replaced to the required position;

[0025] Step 8: Open the second flexible connector on the pipe grab and the movable hook or the detachable connection between the movable hook, adjust the bending and stretching structure, move the pipe grab away from the pipe to be replaced and return it to its original position.

[0026] Preferably, the bracket is H-shaped;

[0027] The extension portion and the bent and elongated structure, as well as the hook handle and the bent and elongated structure, are detachably connected via threads or flanges.

[0028] Preferably, the pipe to be replaced is a galvanized pipe; and the flexible connector is a steel cable or a chain.

[0029] Preferably, the fixed hook and the movable hook are both provided with a plurality of rollers on their inwardly facing sides;

[0030] The axis of each roller is parallel to the central axis of the ring formed by connecting the fixed hook and the movable hook through the two flexible connecting members.

[0031] Preferably, the bending and elongating structure includes a straight tube structure and a rotating structure;

[0032] Each of the rotating structures includes a rotating ball base with a hemispherical concave, a rotating ball disposed on the rotating ball base with the hemispherical concave, and an annular restraining piece restraining the rotating ball in the hemispherical concave;

[0033] A damping pad made of elastic material is provided between each of the annular constraint pieces and the rotating ball;

[0034] The rotating ball base and the rotating ball of each rotating structure are respectively detachably connected to the extending portion, the hook handle or the straight tube structure.

[0035] More preferably, the rotating ball base and the rotating ball of each rotating structure are detachably connected to the corresponding extending portion, the corresponding hook handle or the corresponding straight tube structure through threads or flanges.

[0036] More preferably, the bending and elongating structure further comprises a bifurcated tube structure;

[0037] Each of the bifurcated pipe structures includes three branch pipes connected in a Y shape, and the angle between each two branch pipes is 120 degrees;

[0038] Each of the bifurcated tube structures is detachably connected to the protruding portion, the hook handle or the straight tube structure.

[0039] More preferably, one branch pipe of each bifurcated pipe structure is connected to the extension portion through a plurality of alternately connected straight pipe structures and rotating structures; the second and third branch pipes are respectively connected to two pipe grabbers through the same number of straight pipe structures and rotating structures.

[0040] More preferably, step 2 comprises the following steps:

[0041] Step 2.1, connecting a plurality of alternately connected straight tube structures and the rotating structures in sequence on the extension portion;

[0042] Step 2.2, connecting the bifurcated tube structure to the extended ends of the plurality of alternately connected straight tube structures and the rotating structures;

[0043] Step 2.3, sequentially connecting the same number of the straight pipe structures and the rotating structures to the second and third branch pipes of the bifurcated pipe structure;

[0044] Step 2.4: Connect the two pipe grabs.

[0045] Beneficial effects of the present invention:

[0046] The application of the present invention can overcome the problem that the gas pipeline is difficult to circulate and position in an environment with narrow distances between buildings and high floors.

[0047] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A structural diagram of an embodiment of the present invention is shown.

[0049] Figure 2 A schematic structural diagram of a bracket in one embodiment of the present invention is shown.

[0050] Figure 3 A schematic structural diagram of a pipeline grab hook in one embodiment of the present invention is shown.

[0051] Figure 4 A schematic structural diagram of a straight pipe structure in one embodiment of the present invention is shown.

[0052] Figure 5 A schematic structural diagram of a rotating structure in one embodiment of the present invention is shown.

[0053] Figure 6 A schematic structural diagram of a bifurcated tube structure in one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0054] like Figures 1 to 3 As shown, a gas pipeline modification method using a pipeline installation auxiliary device includes a pipeline installation auxiliary device arranged outside the guardrail 1 of an aerial work vehicle or a hanging basket;

[0055] The pipe installation auxiliary device includes a bracket 2 connected to the guardrail 1, a pipe grab 3 for clamping the pipe 4 to be replaced, and a bending and elongation structure provided between the bracket 2 and the pipe grab 3;

[0056] The bracket 2 is made of a plurality of rods or profiles, one side of which is fixed to the guardrail 1 by a clamp or fastener, and the middle of the other side is provided with an extension portion 21 extending outward from the guardrail 1;

[0057] The extension portion 21 is detachably connected to the bent and elongated structure;

[0058] The pipe grab hook 3 includes a semicircular fixed hook 41 and a movable hook 42;

[0059] Both ends of the fixed hook 41 and the movable hook 42 are connected by two flexible connecting pieces 43 to form a ring shape;

[0060] A hook handle 44 extending radially outward is provided at a position corresponding to the radial direction of the ring outside the fixing hook 41, and is detachably connected to the bent elongated structure through the hook handle 44;

[0061] One end of the movable hook 42 is a fixed end, connected to one end of the fixed hook 41 through a flexible connector 43, and the other end is a movable end with an angled structure 45, connected to the other end of the fixed hook 41 through a second flexible connector 43;

[0062] The connection between the second flexible connector 43 and the movable hook 42 , or between the second flexible connector 43 and the fixed hook 41 , is a detachable connection.

[0063] The gas pipeline renovation process is as follows:

[0064] Step 1: Fix the bracket 2 to the guardrail 1;

[0065] Step 2: A bending and extension structure is provided on the extension portion 21 in a detachable manner, and a pipe grab hook 3 is provided at the other end of the bending and extension structure;

[0066] Step 3: transport the processed pipe 4 to be replaced to an aerial work vehicle or hanging basket;

[0067] Step 4: Lift the aerial work vehicle or hanging basket to the required height;

[0068] Step 5: Open the detachable connection between the second flexible connector 43 and the movable hook 42 or between the movable hook 42 on the pipe grab 3, pass the movable hook 42 around the pipe 4 to be replaced, and then close the detachable connection between the second flexible connector 43 and the movable hook 42 or between the movable hook 42 to a fixed state;

[0069] Step 6: Adjust the bending and stretching structure to move the pipe 4 to be replaced into place;

[0070] Step 7: Install the pipe 4 to be replaced to the required position;

[0071] Step 8: Open the second flexible connector 43 on the pipe grab 3 and the movable hook 42 or the detachable connection between the movable hook 42, adjust the bending and elongation structure, move the pipe grab 3 away from the pipe 4 to be replaced and return it to its original position.

[0072] The present invention can overcome the problem that gas pipelines are difficult to circulate and position in an environment with narrow building spacing and high floors by clamping and positioning the pipeline 4 to be replaced using a pipeline installation auxiliary device outside the guardrail 1 of an aerial work vehicle or a hanging basket, thereby improving construction efficiency and eliminating safety hazards.

[0073] In some embodiments, the bracket 2 is H-shaped;

[0074] The extension portion 21 and the bending and elongating structure, as well as the hook handle 44 and the bending and elongating structure are detachably connected via threads or flanges.

[0075] In some embodiments, the pipe 4 to be replaced is a galvanized pipe; and the flexible connector 43 is a steel cable or a chain.

[0076] In some embodiments, the inner side of the fixed hook 41 and the movable hook 42 are both provided with a plurality of rollers 46 ;

[0077] The axis of each roller 46 is parallel to the central axis of the ring formed by connecting the fixed hook 41 and the movable hook 42 via two flexible connecting members 43 .

[0078] In some embodiments, the bending and elongating structure includes a straight tube structure 5 and a rotating structure 6;

[0079] Each rotating structure 6 includes a rotating ball base 61 with a hemispherical concave, a rotating ball 62 with a hemispherical concave disposed on the rotating ball base 61, and an annular constraining piece 63 constraining the rotating ball 62 in the hemispherical concave;

[0080] A damping pad 64 made of elastic material is provided between each annular constraint piece 63 and the rotating ball 62;

[0081] The rotating ball base 61 and the rotating ball 62 of each rotating structure 6 are detachably connected to the extending portion 21 , the hook handle 44 or the straight tube structure 5 , respectively.

[0082] In some embodiments, the rotating ball base 61 and the rotating ball 62 of each rotating structure 6 are detachably connected to the corresponding extension portion 21, the corresponding hook handle 44 or the corresponding straight tube structure 5 through threads or flanges.

[0083] In some embodiments, the bending and elongating structure further includes a bifurcated tube structure 7;

[0084] Each bifurcated pipe structure 7 includes three branch pipes connected in a Y shape, and the angle between each two branch pipes is 120 degrees;

[0085] Each bifurcated tube structure 7 is detachably connected to the extension portion 21 , the hook handle 44 or the straight tube structure 5 .

[0086] In some embodiments, one branch of each bifurcated pipe structure 7 is connected to the extension portion 21 through a plurality of alternatingly connected straight pipe structures 5 and rotating structures 6; the second and third branches are respectively connected to two pipe grabbers 3 through the same number of straight pipe structures 5 and rotating structures 6.

[0087] In some embodiments, step 2 includes the following steps:

[0088] Step 2.1, connecting a plurality of alternately connected straight tube structures 5 and rotating structures 6 in sequence on the extension portion 21;

[0089] Step 2.2, connecting the bifurcated tube structure 7 to the extended ends of the plurality of alternately connected straight tube structures 5 and rotating structures 6;

[0090] Step 2.3, connect the same number of straight pipe structures 5 and rotating structures 6 to the second and third branches of the bifurcated pipe structure 7 in sequence;

[0091] Step 2.4: Connect the two pipe grabs 3.

[0092] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A gas pipeline modification method using a pipeline installation auxiliary device; characterized in that: It includes a pipeline installation auxiliary device arranged outside the guardrail (1) of an aerial work vehicle or a hanging basket; The pipeline installation auxiliary device comprises a bracket (2) connected to the guardrail (1), a pipeline grabbing hook (3) for clamping the pipeline (4) to be replaced, and a bending and elongating structure arranged between the bracket (2) and the pipeline grabbing hook (3); The bracket (2) is formed by splicing a plurality of rods or profiles, one side of which is fixed to the guardrail (1) by a clamp or a fastener, and the middle of the other side is provided with an extension portion (21) extending toward the outside of the guardrail (1); The extension portion (21) is detachably connected to the bent and elongated structure; The pipe grab hook (3) comprises a semicircular fixed hook (41) and a movable hook (42); Both ends of the fixed hook (41) and the movable hook (42) are connected to form a ring shape through two flexible connecting pieces (43); A hook handle (44) extending radially outward is provided on the outside of the fixing hook (41) at a position corresponding to the radial direction of the ring, and is detachably connected to the bent and elongated structure via the hook handle (44); One end of the movable hook (42) is a fixed end, connected to one end of the fixed hook (41) through a flexible connector (43), and the other end is a movable end with an angled structure (45), connected to the other end of the fixed hook (41) through a second flexible connector (43); The connection between the second flexible connector (43) and the movable hook (42), or between the second flexible connector (43) and the fixed hook (41), is a detachable connection; The gas pipeline renovation process is as follows: Step 1: Fix the bracket (2) to the guardrail (1); Step 2: arranging the bending and elongating structure on the extension portion (21) in a detachable manner, and arranging the pipe grabbing hook (3) at the other end of the bending and elongating structure; Step 3, transporting the processed pipe to be replaced (4) to the aerial work vehicle or hanging basket; Step 4: Lift the aerial work vehicle or hanging basket to the required height; Step 5: Open the detachable connection between the second flexible connector (43) and the movable hook (42) or the movable hook (42) on the pipe grabbing hook (3), pass the movable hook (42) around the pipe to be replaced (4), and then close the detachable connection between the second flexible connector (43) and the movable hook (42) or the movable hook (42) to a fixed state; Step 6: Adjust the bending and stretching structure to move the pipe (4) to be replaced into place; Step 7: Install the pipe (4) to be replaced to the required position; Step 8: Open the second flexible connector (43) on the pipe grab (3) and the movable hook (42) or the detachable connection between the movable hook (42), adjust the bending and stretching structure, and move the pipe grab (3) away from the pipe to be replaced (4) and return it to its original position.

2. The gas pipeline modification method using the pipeline installation auxiliary device according to claim 1 is characterized in that: The bracket (2) is H-shaped; The extension portion (21) and the bent and elongated structure, as well as the hook handle (44) and the bent and elongated structure, are both detachably connected via threads or flanges.

3. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 1 is characterized in that: The pipe (4) to be replaced is a galvanized pipe; and the flexible connector (43) is a steel cable or a chain.

4. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 1 is characterized in that: The fixed hook (41) and the movable hook (42) are both provided with a plurality of rollers (46) on their inner sides; The axis of each roller (46) is parallel to the central axis of the ring formed by connecting the fixed hook (41) and the movable hook (42) via the two flexible connecting members (43).

5. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 1 is characterized in that: The bending and elongating structure includes a straight tube structure (5) and a rotating structure (6); Each of the rotating structures (6) comprises a rotating ball base (61) with a hemispherical concave, a rotating ball (62) with the hemispherical concave disposed on the rotating ball base (61), and an annular restraining piece (63) restraining the rotating ball (62) in the hemispherical concave. A damping pad (64) made of elastic material is provided between each of the annular constraint pieces (63) and the rotating ball (62); The rotating ball base (61) and the rotating ball (62) of each rotating structure (6) are respectively detachably connected to the extension portion (21), the hook handle (44) or the straight tube structure (5).

6. The gas pipeline modification method using the pipeline installation auxiliary device according to claim 5 is characterized in that: The rotating ball base (61) and the rotating ball (62) of each rotating structure (6) are detachably connected to the corresponding extension (21), the corresponding hook handle (44) or the corresponding straight pipe structure (5) via threads or flanges.

7. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 5 is characterized in that: The bending and elongating structure further includes a bifurcated tube structure (7); Each of the bifurcated pipe structures (7) comprises three branch pipes connected in a Y shape, and the angle between each two branch pipes is 120 degrees; Each of the bifurcated tube structures (7) is detachably connected to the extension portion (21), the hook handle (44) or the straight tube structure (5).

8. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 7 is characterized in that: One branch pipe of each bifurcated pipe structure (7) is connected to the extension portion (21) through a plurality of alternately connected straight pipe structures (5) and rotating structures (6); the second and third branch pipes are respectively connected to two pipe grabbers (3) through the same number of straight pipe structures (5) and rotating structures (6).

9. The gas pipeline reconstruction method using the pipeline installation auxiliary device according to claim 8 is characterized in that: Step 2 includes the following steps: Step 2.1, connecting a plurality of alternately connected straight tube structures (5) and rotating structures (6) in sequence on the extension portion (21); Step 2.2, connecting the bifurcated tube structure (7) to the extended ends of the plurality of alternately connected straight tube structures (5) and the rotating structures (6); Step 2.3, sequentially connecting the same number of the straight pipe structures (5) and the rotating structures (6) to the second and third branches of the bifurcated pipe structure (7); Step 2.4: Connect the two pipe grabs (3).

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