A welding device and method for repairing a water supply pipe branch connection

Abstract

The application discloses a welding device and method for repairing a water supply pipeline branch pipe interface, relates to the technical field of pipeline repair, and comprises an auxiliary assembly; the auxiliary assembly comprises a base, supports, limiting plates, limiting holes, a fixing plate and a lifting piece; the two supports are symmetrically fixed on the base; the two ends of the limiting plates and the fixing plate are fixed on the side of the supports that are close to each other, the fixing plate is located above the limiting plates, and the lifting piece is fixed above the fixing plate; the limiting plates are provided with limiting holes, and the limiting holes are multiple; the guide and the limiting holes can be matched with a pyramid and a prism, so that the device can be prevented from shaking when being affected by external force during the rising process, the guide can be prevented from being inclined, the guide can be prevented from being stuck at the lower end of the limiting hole and from being unable to enter the limiting hole, and the stability and safety of the device during use are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline repair, in particular to a welding device and method for repairing a branch pipe interface of a water supply pipeline. BACKGROUND

[0002] A pipeline is a device for conveying gas, liquid, or fluid containing solid particles, which is connected by pipes, pipe connectors, and valves. Generally, the fluid flows from high pressure to low pressure in the pipeline after being pressurized by a blower, compressor, pump, and boiler, etc. It can also be conveyed by the fluid's own pressure or gravity.

[0003] After a long period of use, the surface of a metal pipeline is prone to breakage or damage due to external forces, and the cost of replacing the entire pipeline is high. At this time, manual repair welding is required. Pipeline repair refers to various techniques used to restore the normal use of damaged and leaking conveying pipelines.

[0004] As provided in the authorized announcement No. CN118081158B, a petrochemical pipeline welding device with automatic alignment function, in the process of use, the steel cable pulls the ball top upward, under the action of the guide cover, the ball top will drive the guide column into the inner cavity of the guide cover. Since the ball top is spherical, even if it swings during the rising process, it will not affect the rising of the ball top. Under the guidance of the ball top, the guide column also enters the inner cavity of the guide cover and gradually rises until the guide cover enters the limiting hole. Since the guide column and the limiting hole are of appropriate size, the guide column will not rotate or shake in the limiting hole. Until the guide column contacts the top wall of the limiting hole, the height of the guide column is limited by the ball top, so that the four guide columns and the middle shaft of the petrochemical pipeline fixed by the lifting assembly and the clamping jaw are at the same height. Through the cooperation of the hoist and the alignment assembly, when the hoist winds the steel cable, the guide column is driven upward by the ball top and gradually enters the guide cover. Through the cooperation of the guide cover and the ball top, the guide column is driven into the limiting hole and is limited after reaching a certain height. The clamping jaws on both sides and the welding structure at the middle interface are at the same height under the action of the guide column, achieving automatic alignment of the weld.

[0005] There are great disadvantages: due to external wind factors, the guide column will sway during the rising process. The swaying guide column will tilt. The tilted guide column will be stuck at the lower end of the limiting hole during the continuous rising process, resulting in difficulty in entering the limiting hole, and reducing the welding efficiency of the pipeline. SUMMARY

[0006] The embodiment of the application provides a welding device and method for repairing a water supply pipeline branch pipe interface, solves the problem that a guide column shakes in the process of rising due to external wind force, the tilted guide column is stuck at the lower end of a limiting hole in the process of continuous rising, and the welding efficiency of the pipeline is reduced, the guide member and the limiting hole are matched with a pyramid and a prism, the device can prevent shaking in the process of rising, the guide member is prevented from being tilted, and the guide member is prevented from being stuck at the lower end of the limiting hole and from not entering the limiting hole, and the stability and safety during use are improved.

[0007] The embodiment of the application provides a welding device for repairing a water supply pipeline branch pipe interface.

[0008] The auxiliary assembly comprises a base, a support, a limiting plate, a limiting hole, a fixed plate and a lifting member.

[0009] The support comprises two parts, and the two supports are symmetrically fixed on the base.

[0010] The two ends of the limiting plate and the fixed plate are fixed on the side of the support close to each other, the fixed plate is located above the limiting plate, and the lifting member is fixed above the fixed plate.

[0011] The limiting plate is provided with a limiting hole, and the limiting hole comprises a plurality of parts.

[0012] The device further comprises a guide assembly one, a guide assembly two, a mechanical claw, a limiting assembly, a welding assembly one and a welding assembly two.

[0013] The guide assembly one and the guide assembly two are the same in structure, the guide assembly one and the guide assembly two each comprise two parts, the number of the guide assembly one and the guide assembly two is consistent with the number of the limiting hole, and the guide assembly one and the guide assembly two are one-to-one corresponding.

[0014] The two guide assembly ones are located between the two guide assembly twos.

[0015] The limiting hole is an isosceles quadrangular prism, and the center line between the center points of the top surface and the bottom surface of the limiting hole is a center line.

[0016] The guide assembly one comprises a lifting rope and a guide member.

[0017] The guide member is a quadrangular pyramid shape matched with the inner wall of the limiting hole, the upper end of the guide member is fixed at the lower end of the lifting rope, and the upper end of the lifting rope is arranged in the lifting member through the limiting hole.

[0018] The mechanical claw is fixed to the lower side surface of the guide member in the guide assembly two.

[0019] The limiting assembly is arranged on the lower side of the guide in the two guide assemblies;

[0020] The welding assembly one is fixed in the limiting assembly, and the welding assembly two is arranged on the welding assembly one.

[0021] As an improvement, a plurality of limiting holes are uniformly distributed along a straight line;

[0022] The number of the mechanical claws is consistent with that of the guide assemblies two, and each corresponds to one.

[0023] As an improvement, the lifting piece comprises a winder, the number of the winder is consistent with the sum of the number of the guide assemblies one and the guide assemblies two, and each corresponds to one, and the upper end of the hanging rope is fixed on the winder through the fixed plate;

[0024] The limiting assembly comprises a storage plate, a connecting column, a hanging ear, a traction rope and a limiting rope;

[0025] The storage plate has two, the two storage plates are symmetrically arranged, and the two ends of the connecting column are fixed on the side of the two storage plates close to each other.

[0026] The upper side of the storage plate is provided with a limiting groove, the limiting groove is arc-shaped, the axes of the limiting grooves on the two storage plates are on the same straight line, and the axis of the storage plate is parallel to the ground;

[0027] The diameter of the limiting groove is greater than the diameter of the pipeline to be repaired;

[0028] The storage plate is symmetrically provided with a hanging ear;

[0029] The traction rope has two, and each corresponds to one of the two storage plates, and each of the two traction ropes corresponds to one of the two guide assemblies one;

[0030] The two ends of the traction rope are fixed on the storage plate and are located on the side away from each other of the two hanging ears, and the middle part of the traction rope is fixed on the lower side of the guide in the guide assembly one;

[0031] The limiting rope has two, and each corresponds to one of the two storage plates, and the two ends of the limiting rope are detachably arranged on the two hanging ears;

[0032] The welding assembly one comprises a limiting frame, an arc-shaped electric sliding table, an extension rod, a welding head and an arc-shaped sliding block;

[0033] The limiting frame is arc-shaped, the two ends of the limiting frame in the axis direction are fixed on the side of the two storage plates close to each other, and the limiting frame is located above the connecting column;

[0034] The inner wall of the limiting frame is provided with an arc-shaped electric sliding table, the axis of the arc-shaped electric sliding table is on the same straight line as the axis of the limiting frame, the arc-shaped sliding block is slidably connected to the arc-shaped electric sliding table, and the telescopic rod is fixed to the arc-shaped sliding block;

[0035] The end of the telescopic rod away from the arc-shaped electric sliding table is fixedly provided with a welding head, and the welding head is connected to a welding device;

[0036] The welding assembly two has the same structure as the welding assembly one, the welding assembly two is symmetrically arranged with the welding assembly one, and the welding assembly two is detachably arranged on the upper side of the welding assembly one;

[0037] The axis of the limiting frame in the welding assembly two coincides with the axis of the limiting frame in the welding assembly one, and the limiting frames in the welding assembly one and the welding assembly two have a circular cross section.

[0038] As an improvement, when the lifting rope is in a static state without external force, the center line of the lifting rope coincides with the center line of the limiting hole.

[0039] As an improvement, when the lifting rope is wound, the guide is clamped in the limiting hole, and the axis of the to-be-welded pipeline limited in the mechanical claw and the limiting assembly is on the same straight line.

[0040] As an improvement, the guide assembly one comprises a groove, a contact plate and an air bag;

[0041] The four sides of the guide are provided with grooves, and the grooves are cuboids;

[0042] The number of the contact plates is consistent with the number of the grooves, and the contact plates are one-to-one corresponding, the contact plates are cuboids matched with the grooves, the contact plates are located in the grooves, the upper end of the contact plate is made of rubber, and the upper end of the contact plate is fixed to the top side of the groove;

[0043] The number of the air bags is consistent with the number of the grooves, and the air bags are one-to-one corresponding, the air bags are located between the contact plates and the grooves, and the air bags are fixed to the side close to the contact plates and the grooves;

[0044] The guide is provided with a gas pump, the number of the gas pump is consistent with the number of the air bags, and the gas pump is one-to-one corresponding, and the output end of the gas pump is in communication with the air bag.

[0045] As an improvement, the guide assembly one comprises an electromagnet;

[0046] The electromagnet is arranged on the lower side of the limiting plate, the number of the electromagnet is consistent with the number of the contact plate, and the electromagnet is one-to-one corresponding, and a plurality of electromagnets are annularly and uniformly distributed on the four sides of the limiting hole;

[0047] The contact plate is made of rubber, and the lower end of the contact plate is provided with a magnetic material.

[0048] As an improvement, the guiding assembly one further comprises an electric sliding table;

[0049] The number of the electric sliding table is consistent with the number of the electromagnet, and one-to-one correspondence;

[0050] The electric sliding table is fixed on the lower side of the limiting plate and evenly distributed on the four sides of the limiting hole in a ring shape;

[0051] The electric sliding table is slidably connected with the sliding block, and the electromagnet is fixed on the sliding block of the electric sliding table.

[0052] As an improvement, the length direction of the electric sliding table is perpendicular to the center line of the limiting hole.

[0053] A welding method for repairing a branch interface of a water supply pipeline, comprising the following steps:

[0054] S1: two pipelines needing welding repair are respectively fixed by two mechanical claws, and the other end is placed in the limiting groove on the storage plate, and the welding assembly two is detachably arranged on the upper side of the welding assembly one;

[0055] S2: the lifting height of the pipeline is lifted by winding the lifting rope in the winding device in the lifting part, in the process of lifting the height, the guide is clamped in the limiting hole, the height is lifted, and the axis of the pipeline needing welding repair is in the same straight line;

[0056] S3: in the process of welding, welding is carried out through the welding head, and at the same time, the arc-shaped electric sliding table can be rotated to perform ring-shaped welding on the pipeline;

[0057] S4: after the welding is completed, the winding frame in the lifting part releases the lifting rope together, so that the height of the pipeline is lowered, the lower side of the storage plate contacts the base, and the welding assembly two is manually disassembled;

[0058] S5: control the winding frame of the mechanical claw to lift the height of the mechanical claw, and manually pull or push the pipeline to make the pipeline separate from the limitation of the storage plate, and then control the winding frame of the mechanical claw to lower the height of the mechanical claw, and place the welded pipeline on the base through the mechanical claw;

[0059] S6: the welding part is checked by manual, and the incomplete and defective part is modified.

[0060] The one or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages:

[0061] One, the guide and the limiting hole are matched with the pyramid and the prism, which can prevent the device from shaking when affected by external force during the rising process, causing the guide to tilt, the guide to be stuck in the lower end of the limiting hole and the guide to not enter the limiting hole, thereby improving the stability and safety during use;

[0062] Second, the stability and safety of the device during use are improved. The inflation of the air bag drives the abutting plate to abut against the limiting hole, so that the guide is separated from the inner wall of the limiting hole, thereby ensuring the normal operation of the equipment, improving the efficiency of pipe welding and preventing the guide from being stuck in the limiting hole.

[0063] Third, the lower end of the abutting plate is made of magnetic material, and the abutting plate itself is made of elastic material. During use, the abutting plate deforms to have a buffering effect, preventing the guide from being stuck and then suddenly falling, which can cause a large impact force and damage the welded part. The inflated air bag can absorb the impact force of the falling. The elastic abutting plate and the inflated air bag can provide protection for the welded pipe.

[0064] Fourth, the electromagnet is arranged to slide through the electric sliding table. When the guide is stuck, the electromagnet can pull the air bag and the abutting plate to speed up the rectification of the guide and improve the work efficiency. The abutting plate pulled before the guide falls can more effectively absorb and disperse vibration energy. The tension of the pulled abutting plate is large, which provides stronger damping effect and improves the protection effect of the welded pipe. BRIEF DESCRIPTION OF DRAWINGS

[0065] Figure 1 It is a front view of the welding device for repairing the branch pipe interface of the water supply pipe;

[0066] Figure 2 It is a mechanical claw structure diagram of the welding device for repairing the branch pipe interface of the water supply pipe;

[0067] Figure 3 It is a welding assembly one and welding assembly two structure diagram of the welding device for repairing the branch pipe interface of the water supply pipe;

[0068] Figure 4 It is a pipe placement state diagram of the welding device for repairing the branch pipe interface of the water supply pipe;

[0069] Figure 5 It is a guide entering the limiting hole state diagram of the welding device for repairing the branch pipe interface of the water supply pipe;

[0070] Figure 6 It is a guide in the limiting hole inclined state diagram of the welding device for repairing the branch pipe interface of the water supply pipe;

[0071] Figure 7 It is the installation schematic view of the resisting plate of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0072] Figure 8 It is the schematic view of the deformed state of the resisting plate driven by the air bag of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0073] Figure 9 It is the bottom view of the installation of the resisting plate of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0074] Figure 10 It is the schematic view of the one end state of the resisting plate adsorbed by the electromagnet of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0075] Figure 11 It is the schematic view of the one end state of the resisting plate adsorbed by the electromagnet of the welding device for repairing the branch pipe interface of the water supply pipeline of the application under the inclined state of the guide;

[0076] Figure 12 It is the installation schematic view of the electric sliding table of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0077] Figure 13 It is the bottom view of the installation of the electric sliding table of the welding device for repairing the branch pipe interface of the water supply pipeline of the application;

[0078] Figure 14 It is the installation schematic view of the welding assembly one and the welding assembly two of the welding device for repairing the branch pipe interface of the water supply pipeline of the application.

[0079] In the figure: 100, auxiliary assembly; 110, base; 120, support; 130, limiting plate; 131, limiting hole; 140, fixed plate; 150, lifting piece;

[0080] 200, guide assembly one; 210, hanging rope; 220, guide; 221, groove; 230, resisting plate; 240, air bag; 250, electromagnet; 260, electric sliding table;

[0081] 300, guide assembly two;

[0082] 400, mechanical claw;

[0083] 500, limiting assembly; 510, storage plate; 520, connecting column; 530, hanging ear; 540, traction rope; 550, limiting rope;

[0084] 600, welding assembly one; 610, limiting frame; 620, arc-shaped electric sliding table; 630, telescopic rod; 640, welding head; 650, arc-shaped sliding block;

[0085] 700, welding assembly two. DETAILED DESCRIPTION

[0086] For the purpose of promoting the understanding of the present application, the present application will be described in greater detail below with reference to the drawings. The preferred embodiments of the present application are illustrated in the drawings, which present the application in a form most useful to convey the substance of the present application to those of ordinary skill in the art, but it will be understood by those of ordinary skill in the art that the present application can be carried out in many different ways, and is not limited to those embodiments described herein; rather, the present application is capable of significant modifications and adaptations in various parts as concepts embodied herein will suggest themselves to those of ordinary skill in the art on such realization of supporting principles of the present application.

[0087] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are only for the purpose of illustration and do not indicate the only embodiments.

[0088] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terminology used in the description of the present application herein is for the purpose of describing the specific embodiments only and is not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0089] Embodiment one: as shown in Figures 1-5 , Figure 14 The welding device for repairing the branch pipe interface of the water supply pipeline comprises an auxiliary assembly 100;

[0090] The auxiliary assembly 100 comprises a base 110, a support 120, a limiting plate 130, a limiting hole 131, a fixed plate 140, and a lifting piece 150;

[0091] The support 120 has two supports 120 symmetrically fixed on the base 110;

[0092] The limiting plate 130 and the fixed plate 140 are fixed at both ends of the two supports 120 on the side close to each other, the fixed plate 140 is located above the limiting plate 130, and the lifting piece 150 is fixed above the fixed plate 140;

[0093] The limiting plate 130 is provided with limiting holes 131, the limiting holes 131 are multiple, and the multiple limiting holes 131 are uniformly and interval distributed along a straight line;

[0094] It further comprises a guide assembly one 200, a guide assembly two 300, a mechanical claw 400, a limiting assembly 500, a welding assembly one 600, and a welding assembly two 700;

[0095] The guiding assembly one 200 and the guiding assembly two 300 have the same structure, and the guiding assembly one 200 and the guiding assembly two 300 are two respectively, the sum of the number of the guiding assembly one 200 and the guiding assembly two 300 is consistent with the number of the limiting hole 131, and one-to-one correspondence;

[0096] The two guiding assembly ones 200 are located between the two guiding assembly twos 300;

[0097] The limiting hole 131 is an isosceles quadrangular truncated cone, and the center line is the line between the center points of the top surface and the bottom surface of the limiting hole 131;

[0098] The guiding assembly one 200 includes a hanging rope 210 and a guide 220;

[0099] The guide 220 is a quadrangular pyramid body which is attached to the inner wall of the limiting hole 131, the upper end of the guide 220 is fixed to the lower end of the hanging rope 210, and the upper end of the hanging rope 210 is arranged in the lifting piece 150 through the limiting hole 131;

[0100] The number of the mechanical claws 400 is consistent with the number of the guiding assembly twos 300, and one-to-one correspondence, the mechanical claws 400 are fixed to the lower side of the guide 220 in the guiding assembly two 300;

[0101] The limiting assembly 500 is arranged on the lower side of the guide 220 in the two guiding assembly ones 200;

[0102] The welding assembly one 600 is fixed in the limiting assembly 500, and the welding assembly two 700 is arranged on the welding assembly one 600;

[0103] The lifting piece 150 includes a winding device, the number of the winding device is consistent with the sum of the number of the guiding assembly one 200 and the guiding assembly two 300, and one-to-one correspondence, the upper end of the hanging rope 210 is fixed on the winding device through the fixed plate 140;

[0104] When the hanging rope 210 is in a static state without external force, the center line of the hanging rope 210 coincides with the center line of the limiting hole 131;

[0105] The limiting assembly 500 includes a storage plate 510, a connecting column 520, a hanging ear 530, a traction rope 540 and a limiting rope 550;

[0106] The storage plate 510 has two, the two storage plates 510 are symmetrically arranged, and the two ends of the connecting column 520 are respectively fixed on the side of the two storage plates 510 which are close to each other;

[0107] The upper side of the storage plate 510 is provided with a limiting groove, the limiting groove is arc-shaped, the axes of the limiting grooves on the two storage plates 510 are on the same straight line, and the axis of the storage plate 510 is parallel to the ground;

[0108] The diameter of the limiting groove is greater than the diameter of the pipeline to be repaired;

[0109] The storage plate 510 is symmetrically provided with an ear 530;

[0110] The traction rope 540 has two, and each corresponds to a storage plate 510, and the two traction ropes 540 correspond to the two guide assemblies one 200 respectively;

[0111] The two ends of the traction rope 540 are fixed on the storage plate 510 and are located on the side away from each other of the two ears 530, and the middle part of the traction rope 540 is fixed on the lower side of the guide 220 in the guide assembly one 200;

[0112] The limiting rope 550 has two, and each corresponds to a storage plate 510, and the two ends of the limiting rope 550 are detachably arranged on the two ears 530;

[0113] The welding assembly one 600 includes a limiting frame 610, an arc-shaped electric sliding table 620, a telescopic rod 630, a welding head 640 and an arc-shaped sliding block 650;

[0114] The limiting frame 610 is arc-shaped, the two ends of the limiting frame 610 in the axis direction are fixed on the side close to each other of the two storage plates 510, and the limiting frame 610 is located above the connecting column 520;

[0115] The inner wall of the limiting frame 610 is provided with an arc-shaped electric sliding table 620, the axis of the arc-shaped electric sliding table 620 is on the same straight line as the axis of the limiting frame 610, the arc-shaped sliding block 650 is slidingly connected to the arc-shaped electric sliding table 620, and the telescopic rod 630 is fixed to the arc-shaped sliding block 650;

[0116] The end of the telescopic rod 630 away from the arc-shaped electric sliding table 620 is fixed with the welding head 640, and the welding head 640 is connected to the welding equipment;

[0117] The welding assembly two 700 has the same structure as the welding assembly one 600, the welding assembly two 700 is symmetrically arranged with the welding assembly one 600, and the welding assembly two 700 is detachably arranged on the upper side of the welding assembly one 600;

[0118] The axis of the limiting frame 610 in the welding assembly two 700 coincides with the axis of the limiting frame 610 in the welding assembly one 600, and the cross section of the limiting frame 610 in both the welding assembly one 600 and the welding assembly two 700 forms a circle.

[0119] When the lifting piece 150 winds the lifting rope 210 and the guide piece 220 is clamped in the limiting hole 131, the axis of the pipe to be welded which is limited in the mechanical claw 400 and the limiting assembly 500 is in the same straight line.

[0120] A welding method for repairing a branch pipe interface of a water supply pipe adopts the device and comprises the following steps.

[0121] S1: Two pipes which need to be welded and repaired are respectively fixed by two mechanical claws 400, and the other end is placed in the limiting groove on the storage plate 510, and the welding assembly two 700 is detachably arranged on the upper side of the welding assembly one 600.

[0122] S2: The lifting rope 210 is wound by the winding device in the lifting piece 150, and the pipe is lifted to a height, in the process of lifting the height, the guide piece 220 is clamped in the limiting hole 131, the height is lifted, and the axis of the pipe to be welded and repaired is in the same straight line.

[0123] S3: In the process of welding, the welding head 640 is used for welding, and the arc-shaped electric sliding table 620 is used for rotating to perform circular welding on the pipe.

[0124] S4: After the welding is completed, the lifting rope 210 is released by the winding frame in the lifting piece 150, the height of the pipe is lowered, the lower side of the storage plate 510 contacts the base 110, and the welding assembly two 700 is manually detached.

[0125] S5: The winding frame of the mechanical claw 400 is controlled to lift the height of the mechanical claw 400, and the pipe is manually pulled or pushed to make the pipe separate from the storage plate 510, then the winding frame of the mechanical claw 400 is controlled to lower the height of the mechanical claw 400, and the pipe which is welded is placed on the base 110 by the mechanical claw 400.

[0126] S6: The welded part is manually checked, and the part which is not completely welded and has defects is modified.

[0127] Compared with the prior art, the guide piece 220 and the limiting hole 131 are matched with the pyramid and the prism, which can prevent the device from shaking when the device is affected by an external force in the process of rising, the guide piece 220 is inclined, the guide piece 220 is clamped at the lower end of the limiting hole 131 and cannot enter the limiting hole 131, and the stability and safety during use are improved.

[0128] In the use of the first embodiment, the guide 220 and the limiting hole 131 are matched and fixed by mutual cooperation. However, during the use, the weight difference of the two ends of the pipeline is too large after the welding is completed. During the descending process, the end with large weight descends first, which can cause the remaining guide 220 of the other end to be tilted and stuck in the limiting hole, as shown in Figure 6 Therefore, the scheme of the first embodiment is improved, as shown in Figures 7-9

[0129] The guide assembly 200 includes a groove 221, a contact plate 230, and an air bag 240.

[0130] The four sides of the guide 220 are provided with the groove 221, and the groove 221 is a cuboid.

[0131] The number of the contact plate 230 is consistent with the number of the groove 221, and the contact plate 230 is one-to-one corresponding. The contact plate 230 is a cuboid matched with the groove 221. The contact plate 230 is located in the groove 221. The upper end of the contact plate 230 is made of rubber, and the upper end of the contact plate 230 is fixed to the top side of the groove 221.

[0132] The number of the air bag 240 is consistent with the number of the groove 221, and the air bag 240 is one-to-one corresponding. The air bag 240 is located between the contact plate 230 and the groove 221, and the air bag 240 is fixed to the side close to the contact plate 230 and the groove 221.

[0133] The guide 220 is provided with an air pump. The number of the air pump is consistent with the number of the air bag 240, and the air pump is one-to-one corresponding. The output end of the air pump is in communication with the air bag 240.

[0134] When the guide 220 is stuck in the limiting hole 131, the air bag 240 located on the contact side of the guide 220 is inflated. The air pump in the guide 220 inflates the air bag 240, so that the air bag 240 drives the contact plate 230 to contact the limiting hole 131. In the process of continuous inflation and contact, the guide 220 is separated from the inner wall of the limiting hole 131, and can continue to descend.

[0135] The stability and safety of the device during use are improved. The air bag 240 is inflated, the contact plate 230 is contacted, the limiting hole 131 is contacted, the guide 220 is separated from the inner wall of the limiting hole 131, the normal operation of the equipment is ensured, the efficiency of the pipeline welding is improved, and the guide 220 is prevented from being stuck in the limiting hole 131.

[0136] ​In use, the guide assembly 200 of the embodiment three can make the abutting plate 230 abut against the limiting hole 131 through the inflation of the installed air bag 240, so as to make the guide 220 stuck in the limiting hole 131 release, but after the release, due to the inclined state of the pipeline, the impact force of the one end falling is large, which can cause damage to the welded part. Therefore, the embodiment two is improved, as shown in Figures 10-11

[0137] The guide assembly 200 comprises an electromagnet 250.

[0138] The electromagnet 250 is arranged on the lower side of the limiting plate 130, the number of the electromagnet 250 is consistent with the number of the abutting plate 230, and the electromagnet 250 is one-to-one corresponding, and a plurality of electromagnets 250 are evenly distributed on the four sides of the limiting hole 131 in a ring shape.

[0139] The abutting plate 230 is made of rubber material, and the lower end of the abutting plate 230 is provided with a magnetic material.

[0140] When the equipment needs to be lowered, the electromagnet 250 can be powered first to adsorb the magnetic material at the lower end of the abutting plate 230, so that the abutting plate 230 is deformed. When the guide 220 is stuck in the process of falling, one side of the air bag 240 is inflated to make the guide 220 release from the limiting hole 131. In the process of releasing, the abutting plate 230 made of elastic material can absorb part of the impact force, and the air bag 240 in the inflated state can also absorb part of the impact force, so as to prevent the welded pipeline from being broken again. When the guide 220 releases from the limiting hole 131 and the pipeline no longer shakes, the pipeline can continue to fall.

[0141] The lower end of the abutting plate 230 is made of magnetic material, and the abutting plate 230 made of elastic material can deform in the process of use, so as to have a buffering effect, prevent the guide 220 from suddenly falling after being stuck, and prevent the impact force from being too large to cause damage to the welded part. At the same time, the inflated air bag 240 can absorb the impact force of falling, and the abutting plate 230 made of elastic material and the inflated air bag 240 can have a protection effect on the welded pipeline.

[0142] In use, the guide assembly 200 of the embodiment three can make the abutting plate 230 abut against the limiting hole 131 through the inflation of the installed air bag 240, so as to make the guide 220 stuck in the limiting hole 131 release, but after the release, due to the inclined state of the pipeline, the impact force of the one end falling is large, which can cause damage to the welded part. Therefore, the embodiment two is improved, as shown in Figures 12-13

[0143] ​​The guiding assembly 200 further comprises electric sliding platforms 260;

[0144] The number of the electric sliding platforms 260 is consistent with that of the electromagnets 250, and each of the electric sliding platforms 260 corresponds to one of the electromagnets 250.

[0145] The electric sliding platforms 260 are fixed to the lower side of the limiting plate 130 and are evenly distributed around the four sides of the limiting hole 131.

[0146] The length direction of the electric sliding platforms 260 is perpendicular to the center line of the limiting hole 131.

[0147] The electromagnets 250 are fixed to the sliding blocks of the electric sliding platforms 260.

[0148] When the guide 220 is clamped in the limiting hole 131, the electromagnets 250 are powered to attract the abutting plate 230, and at the same time that the air bag 240 on the side of the guide 220 is inflated, the electric sliding platform 260 on the side far from the inflated and expanded side drives the electromagnet 250 fixed on the surface to pull the abutting plate 230, so as to accelerate the resetting speed of the guide 220, and at the same time, due to the pulling of the abutting plate 230, the vibration energy can be more effectively absorbed and dispersed, and when the guide 220 is separated from the limiting hole 131, the protection effect can be improved.

[0149] The electromagnets 250 are slidably arranged through the electric sliding platforms 260, and when the guide 220 is clamped, the air bag 240 and the abutting plate 230 can be pulled by the movement of the electromagnets 250, so as to accelerate the resetting speed of the guide 220 and improve the working efficiency; at the same time, the abutting plate 230 pulled before the guide 220 falls can more effectively absorb and disperse the vibration energy, and the tension of the pulled abutting plate 230 is large, so as to provide stronger damping effect and improve the protection effect on the pipeline after welding.

[0150] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding device for repairing branch pipe joints of a water supply pipeline, comprising auxiliary components; The auxiliary components include a base, a bracket, a limiting plate, limiting holes, a fixing plate, and a lifting component; There are two brackets, which are symmetrically fixed to the base. The two ends of the limiting plate and the fixed plate are fixed to the side of the bracket that are close to each other. The fixed plate is located above the limiting plate, and the lifting component is fixed above the fixed plate. The limiting plate has multiple limiting holes. Its features include a first guide component, a second guide component, a mechanical gripper, a limiting component, a first welding component, and a second welding component; Guide component one and guide component two have the same structure. There are two of each of guide component one and guide component two. The sum of the number of guide component one and guide component two is consistent with the number of limiting holes, and they correspond one-to-one. Two bootloader components are located between two bootloader components. The limiting hole is an isosceles quadrangular frustum, and the line connecting the center points of the top and bottom surfaces of the limiting hole is the center line. The guiding component includes a sling and a guide. The guide is a square pyramid shape that fits against the inner wall of the limiting hole. The upper end of the guide is fixed to the lower end of the lifting rope, and the upper end of the lifting rope passes through the limiting hole and is set inside the lifting member. The mechanical gripper is fixed to the lower side of the guide within guide assembly two; The limiting component is located on the lower side of the guide within one of the two guide components; Welding component one is fixed inside the limiting component, and welding component two is set on welding component one; The limiting components include a storage plate; The storage plate has a limit groove on its side; The two pipes are fixed by two mechanical claws respectively, and the other end is placed in the limiting groove on the storage plate. Welding component two is detachably set on the upper side of welding component one. Welding assembly one includes an arc-shaped electric slide and a welding head; Welding is performed using a welding head, and the pipe is circumferentially welded by rotating an arc-shaped electric slide. The structure of welding assembly two is the same as that of welding assembly one, and welding assembly two is arranged symmetrically with welding assembly one. The guide assembly includes a contact plate, an airbag, and an electromagnet, and the guide contains an air pump. The air pump inside the guide inflates the airbag, causing the airbag to move the contact plate to contact the limiting hole; The electromagnet is located on the lower side of the limiting plate, and the entire contact plate is made of rubber with a magnetic material at the lower end.

2. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 1, characterized in that, Multiple limiting holes are evenly spaced along a straight line; The number of mechanical claws is the same as the number of guide components two, and they correspond one-to-one.

3. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 1, characterized in that, The lifting component includes a winding device, the number of which is the same as the sum of the numbers of guide component one and guide component two, and they correspond one-to-one. The upper end of the lifting rope passes through the fixing plate and is fixed to the winding device. The limiting component includes a connecting post, a hanging ear, a traction rope, and a limiting rope. There are two storage plates, which are symmetrically arranged. The two ends of the connecting post are respectively fixed to the sides of the two storage plates that are close to each other. The limiting groove is arc-shaped, and the axes of the limiting grooves on the two storage plates are on the same straight line, and the axis of the storage plates is parallel to the ground. The diameter of the limiting groove is larger than the diameter of the pipe to be repaired; The storage plate is symmetrically equipped with hanging ears; There are two traction ropes, each corresponding to one of the two storage plates, and each of the two traction ropes corresponds to one of the two guide components. The two ends of the traction rope are fixed to the storage plate and are respectively located on the side of the two hanging ears that are far apart from each other. The middle part of the traction rope is fixed to the lower side of the guide in the guide assembly. There are two limiting ropes, each corresponding to one of the two storage plates. The two ends of the limiting ropes are detachably mounted on the two hanging ears. The welding assembly includes a limiting frame, a telescopic rod, and an arc-shaped slider. The limiting frame is arc-shaped, and its two ends along the axial direction are respectively fixed to the sides of the two storage plates that are close to each other. The limiting frame is located above the connecting column. The inner wall of the limiting frame is equipped with an arc-shaped electric slide, the axis of the arc-shaped electric slide is on the same straight line as the axis of the limiting frame, the arc-shaped slider is slidably connected to the arc-shaped electric slide, and the telescopic rod is fixed on the arc-shaped slider. The end of the telescopic rod away from the arc-shaped electric slide is fixed with a welding head, and the welding head is connected to the welding equipment. The axis of the inner limiting frame of the second welding component coincides with the axis of the inner limiting frame of the first welding component, and the cross-sections of the limiting frames inside the first and second welding components form a circle.

4. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 3, characterized in that, When the suspension rope is stationary without external force, the center line of the suspension rope coincides with the center line of the limiting hole.

5. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 3, characterized in that, When the lifting component winds up the hoisting rope and the guide component is locked in the limiting hole, the axis of the pipe to be welded, which is limited within the limiting assembly, is on the same straight line.

6. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 1, characterized in that, The guide component includes a groove; The guide has grooves on all four sides, and the grooves are cuboid in shape. The number of contact plates is the same as the number of grooves, and they correspond one-to-one. The contact plate is a cuboid shape that matches the groove. The contact plate is located inside the groove. The upper end of the contact plate is made of rubber and is fixed to the top side inside the groove. The number of airbags is the same as the number of grooves, and they correspond one-to-one. The airbags are located between the contact plate and the grooves, and the airbags are fixed on the side of the contact plate and the grooves that are close to each other. The number of air pumps is the same as the number of airbags, and they correspond one-to-one. The output end of the air pump is connected to the airbag.

7. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 6, characterized in that, The number of electromagnets is the same as the number of contact plates, and they correspond one-to-one. The multiple electromagnets are evenly distributed in a ring on the four sides of the limiting hole.

8. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 7, characterized in that, The guide assembly also includes an electric slide; The number of electric slides is the same as the number of electromagnets, and they correspond one-to-one. The electric slide is fixed to the lower side of the limiting plate and is evenly distributed in a ring on the four sides of the limiting hole. The slider is slidably connected to the electric slide, and the electromagnet is fixed on the slider of the electric slide.

9. The welding device for repairing branch pipe joints of a water supply pipeline as described in claim 8, characterized in that, The length direction of the electric slide is perpendicular to the center line of the limiting hole.

10. A welding method for repairing branch pipe joints of a water supply pipeline, characterized in that, A welding device for repairing branch pipe joints of a water supply pipeline as described in any one of claims 1-9, comprising the following steps: S1: The two pipes that need to be welded and repaired are fixed by two mechanical claws respectively, and the other end is placed in the limiting groove on the storage plate. Welding component two is detachably set on the upper side of welding component one. S2: The lifting rope is wound up by the retractor inside the lifting component, which drives the pipe to be raised. During the raising process, the guide is stuck in the limiting hole to complete the raising and make the axis of the pipe that needs to be welded and repaired on the same straight line. S3: During the welding process, welding is performed through the welding head, and the arc-shaped electric slide table can be rotated to perform circumferential welding on the pipe. S4: After welding is completed, the coiling frame inside the lifting component releases the hoisting rope, causing the pipe height to drop. The bottom of the storage plate contacts the base, and the welding component two is then manually disassembled. S5: Control the rewinding frame of the robotic gripper to raise the height of the robotic gripper, and manually pull or push the pipe to remove it from the storage plate. Then control the rewinding frame of the robotic gripper to lower the height of the robotic gripper and place the welded pipe on the base. S6: Manually inspect the welded areas and modify any incomplete or defective welds.

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