Welding trolley for underground continuous wall H-beam joint steel plate weld

CN224615493UActive Publication Date: 2026-08-11SHANGHAI RAIL TRANSIT ENG CO LTD OF CHINA RAILWAY 17 BUREAU GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]地下连续墙工字钢接头钢板通常是有多块钢板在施工现场对地下连续墙工字钢接头两侧相互平行的焊缝进行焊接施工,施工过程中多采用二氧化碳气保焊自动小车,现有气保焊自动小车多为单侧焊接,如下图1所示,其包括控制箱102、提携手柄103、X-Y移动滑块4、手柄105、导轮杆106、行走轮107、底座108、电机、焊枪夹持器总成1010、焊枪1011、挡渣板1012、导向轮1013等,通过X-Y移动滑块4在上下左右四个方向上微调焊枪夹持器总成1010和焊枪1011,通过控制箱预设参数控制焊接进行,且焊接时只能一侧焊缝、一侧焊缝的按序依次焊接,工作效率低

Benefits of technology

[0012]与现有技术相比,本实用新型的有益效果是:可以在现有的焊接小车,如图1所示的气保焊自动小车等,直接改造形成,成本可控,新增辅助焊枪与原焊枪独立设置,拆装方便,辅助焊枪与焊枪可以实现同步焊接两侧绗缝,提高焊接效率;该地下连续墙工字钢接头钢板焊缝用焊接小车还可按需拆除辅助座和移动座,降低加装部件对原焊接小车的影响,保证有需求时仍可实现单侧焊接,此外还地下连续墙工字钢接头钢板焊缝用焊接小车相较于现有的焊接小车的增设部分可以单独替换。

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Abstract

This utility model discloses a welding trolley for welding the steel plate joint of an H-beam in a diaphragm wall. The trolley includes a base, with a welding torch adjustable in four directions (up, down, left, and right) on one side. An idle area is located on the other side of the base, housing an auxiliary connecting assembly. The auxiliary connecting assembly has an auxiliary seat, which is detachably connected to the auxiliary seat. A telescopic assembly extends from the auxiliary seat and connects to a movable seat, which is also detachably connected to the movable seat. The movable seat and welding torch are located on opposite sides of the base. The movable seat has casters at its bottom and an auxiliary welding torch is mounted on it. The auxiliary welding torch and the main welding torch correspond to the weld seams on both sides of the H-beam in the diaphragm wall, enabling simultaneous welding of the weld seams on both sides of the H-beam. This welding trolley for welding the steel plate joint of an H-beam in a diaphragm wall also has the advantages of easy assembly and disassembly.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a welding trolley for welding the steel plate of the I-beam joint of an underground continuous wall. Background Technology

[0002] For the joint of H-beams in diaphragm walls, multiple steel plates are typically used on-site to weld parallel seams on both sides of the joint. The construction process often employs automated CO2 gas shielded welding trolleys. Currently, most automated CO2 welding trolleys are for single-sided welding, as shown below. Figure 1 As shown, it includes a control box 102, a lifting handle 103, an XY sliding block 4, a handle 105, a guide wheel rod 106, a traveling wheel 107, a base 108, a motor, a welding torch holder assembly 1010, a welding torch 1011, a slag baffle 1012, and a guide wheel 1013. The welding torch holder assembly 1010 and the welding torch 1011 can be finely adjusted in four directions (up, down, left, and right) by the XY sliding block 4. Welding is controlled by preset parameters in the control box. However, welding can only be done sequentially on one side of the weld seam, resulting in low work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a welding trolley for welding the steel plate of the I-beam joint of underground continuous wall, so as to solve one or more of the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model discloses a welding trolley for welding the steel plate joint of an H-beam in a diaphragm wall. The trolley includes a base, with a welding torch adjustable in four directions (up, down, left, and right) on one side. An idle area is provided on the other side of the base, and an auxiliary connecting assembly is provided thereon. An auxiliary seat is provided on the auxiliary connecting assembly, and the auxiliary connecting assembly and the auxiliary seat are detachably connected. A telescopic assembly is provided on the auxiliary seat, with one end extending out of the auxiliary seat and connecting to a movable seat. The telescopic assembly and the movable seat are detachably connected. The movable seat and the welding torch are located on opposite sides of the base. A caster wheel is provided at the bottom of the movable seat, and an auxiliary welding torch is provided on the movable seat. The auxiliary welding torch and the welding torch correspond to the weld seams on both sides of the H-beam in the diaphragm wall.

[0005] In some embodiments, a lifting handle is connected to the base via a support rod, and a first connecting hole is provided on the support rod. The auxiliary connecting assembly includes a base plate corresponding to the idle area, a side rod corresponding to the support rod, and a connecting block. The side rod and the connecting block are both connected to the base plate. The side rod is connected to the first connecting hole on the support rod via a connector. The bottom of the base plate is fixedly connected to the base of the idle area by welding. The connecting block is fixedly connected to the side of the base plate away from the welding gun. The base plate has at least one second connecting hole, and the connecting block has at least one third connecting hole.

[0006] In some implementations... The auxiliary seat is connected to the second and third connecting holes via a connector; The telescopic assembly includes a motor, a worm gear, and a worm. The worm gear and the worm are adapted to each other. The motor is fixed above the auxiliary seat. The output shaft of the motor is inserted into the auxiliary seat and connected to the worm gear embedded in the auxiliary seat to control the rotation of the worm gear. The worm passes through the auxiliary seat, and the worm gear meshes with the worm. The extension and retraction of the worm are controlled by the rotation of the worm gear. The connecting block is provided with a hole, and one end of the worm passes through the hole and connects to the movable seat.

[0007] In some embodiments, the movable seat has a first connecting wall near the base, an auxiliary connecting seat is provided on the first connecting wall, a bearing is provided between the auxiliary connecting seat and the first connecting wall, and a fourth connecting hole is provided on the auxiliary connecting seat. The bearing, the auxiliary connecting seat, the fourth connecting hole and the worm are coaxially arranged, and the end of the worm is inserted into the fourth connecting hole and a detachable connection is formed by a connector.

[0008] In some embodiments, the movable base is provided with a clamping seat for connecting an auxiliary welding torch, a control clamping seat and a slider assembly on which the auxiliary welding torch can be adjusted in four directions (up, down, left, and right).

[0009] In some embodiments, a second connecting wall is provided at the front end of the movable seat in the direction of travel of the welding trolley, and a reserved hole is provided on the second connecting wall.

[0010] In some embodiments, a distance sensor is provided on the side of the movable seat away from the base, and the distance sensor is linked to a motor in the telescopic assembly.

[0011] In some embodiments, the mobile base is equipped with an alarm unit, which is linked to a distance sensor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: it can be used in existing welding carriages, such as... Figure 1The automatic gas shielded welding trolley shown can be directly modified to achieve cost control. The newly added auxiliary welding torch is set independently from the original welding torch, making it easy to disassemble and assemble. The auxiliary welding torch and the original welding torch can simultaneously weld the quilted seams on both sides, improving welding efficiency. The welding trolley for welding the steel plate joint of the underground continuous wall I-beam can also remove the auxiliary seat and the movable seat as needed, reducing the impact of the added parts on the original welding trolley and ensuring that single-sided welding can still be achieved when needed. In addition, the additional parts of the welding trolley for welding the steel plate joint of the underground continuous wall I-beam can be replaced separately compared to the existing welding trolley. Attached Figure Description

[0013] Figure 1 A schematic diagram of the existing automatic gas shielded welding trolley; Figure 2 This is a schematic diagram of the welding carriage in some embodiments of this utility model; Figure 3 This is a top view of the auxiliary connection component in some embodiments of the present invention; Figure 4 This is a side view of the auxiliary connection component in some embodiments of the present invention; Figure 5 This is a top view of the auxiliary connection component after adding other components in some embodiments of this utility model; Figure 6 for Figure 5 Enlarged view of part Aa in the image; Figure 7 This is a side view of the movable seat in some embodiments of this utility model; Figure 8 This is a schematic diagram of the structure of the welding trolley for welding the steel plate of the I-beam joint of the underground continuous wall in some embodiments of this utility model; Figure 9 This is a schematic diagram of the working state of the welding trolley for the steel plate weld of the I-beam joint of the underground continuous wall in some embodiments of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This embodiment is a preferred implementation method, combined with Figure 2 and Figure 8 The content shown discloses a welding trolley for welding the steel plate of the I-beam joint in a diaphragm wall, including the welding trolley, which can be used as follows: Figure 1 The automatic gas shielded welding trolley shown includes a base 108. A welding torch 1011, adjustable in four directions (up, down, left, and right), is located on one side of the base 108. An idle area 101 is located on the other side of the base 108, with an auxiliary connecting assembly on it. An auxiliary seat 3 is mounted on the auxiliary connecting assembly, and the auxiliary connecting assembly and auxiliary seat 3 are detachably connected. A telescopic assembly is mounted on the auxiliary seat 3, with one end extending out of the auxiliary seat 3 and connecting to a movable seat 5. The telescopic assembly and movable seat 5 are detachably connected, allowing the auxiliary seat 3 and telescopic assembly to be installed / removed as a single unit. The movable seat 5 and welding torch 1011 are located on opposite sides of the base 108. The bottom of the movable seat 5 is equipped with casters 6, and an auxiliary welding torch 8 is mounted on the movable seat 5. The auxiliary welding torch 8 and welding torch 1011 correspond to the weld seams on both sides of the I-beam of the diaphragm wall, and these two weld seams can be arranged parallel to each other. The casters ensure that the movable seat 5 can move smoothly in the telescopic direction of the telescopic assembly and also ensure that the movable seat 5 moves forward with the welding trolley. The structural design of the welding trolley for the steel plate weld of the I-beam joint of the diaphragm wall can achieve the purpose of welding the welds on both sides of the diaphragm wall I-beam simultaneously with two welding guns, while retaining the single-sided welding function of the original welding trolley. Furthermore, by removing the auxiliary seat 3 and its telescopic components and movable seat 5, the influence of these structures on the single-sided welding function of the welding trolley is reduced, and the welding trolley for the steel plate weld of the I-beam joint of the diaphragm wall is avoided from being too wide.

[0016] A carrying handle 103 is connected to the base 108 via a support rod, and a first connecting hole 131 is formed on the support rod. Figure 3 and Figure 6 The auxiliary connection assembly includes a base plate 201 corresponding to the idle area, a side rod 202 corresponding to the support rod, and a connecting block 203. Both the side rod 202 and the connecting block 203 are connected to the base plate 201. The side rod 202 is connected to the first connecting hole 131 on the support rod through a connector. The bottom of the base plate 201 is connected to the base 108 at the idle area 101 by welding. The connecting block 203 is fixedly connected to the side of the base plate 108 away from the welding gun 1011. The base plate 201 has at least one second connecting hole 211, and the connecting block 203 has at least one third connecting hole 232.

[0017] The auxiliary seat 3 is connected to the second connecting hole 211 and the third connecting hole 232 via a connector; The telescopic assembly includes a motor 403, a worm gear 402, and a worm 401. The worm gear 402 is adapted to the worm 401. The motor 403 is fixed above the auxiliary seat 3. The output shaft of the motor 403 is inserted into the auxiliary seat 3 and connected to the worm gear 402 embedded in the auxiliary seat 3, controlling the rotation of the worm gear 402. The worm 401 passes through the auxiliary seat 3, and the worm gear 402 meshes with the worm 401. The extension and retraction of the worm 401 are controlled by the rotation of the worm gear 402, thereby driving the moving seat 5 connected to the worm 401 to move, so as to control the distance between the welding torch 1011 and the auxiliary welding torch 8, so as to better adapt to welds with different spacing. The connecting block 203 is provided with a hole 231, and one end of the worm 401 passes through the hole 231 and connects to the moving seat 5.

[0018] Combination Figures 5 to 7 As shown, the movable seat 5 has a first connecting wall 501 on the side near the base 108. The first connecting wall 501 has an auxiliary connecting seat 511. A bearing 512 is provided between the auxiliary connecting seat 511 and the first connecting wall 501. The auxiliary connecting seat 511 has a fourth connecting hole. The bearing 512, the auxiliary connecting seat 511, the fourth connecting hole, and the worm gear 401 are coaxially arranged. The end of the worm gear 401 is inserted into the fourth connecting hole and forms a detachable connection through a connector.

[0019] The movable base 5 is equipped with a clamping seat for connecting the auxiliary welding torch 8, a control clamping seat, and a slider assembly 7 for adjusting the auxiliary welding torch in four directions (up, down, left, and right). The structure of the clamping seat and slider assembly 7 can be the existing welding torch holder assembly 1010 and XY sliding slider 4, or other existing structures that can achieve the same function (including the function of clamping the auxiliary welding torch and / or the function of controlling the adjustment of the auxiliary welding torch in four directions). Placing the auxiliary welding torch 8 and related components on the movable base 5 effectively avoids the space requirements for installing the auxiliary welding torch 8 and related components on the welding carriage. Users can arrange the auxiliary welding torch 8 and related components as needed, avoiding the constraints of pre-existing components on the base 108, and also avoiding the influence of the auxiliary welding torch 8 and related components on the original welding torch 1011 and related components.

[0020] In the direction of travel of the welding trolley, a second connecting wall 502 may be added to the front of the movable seat 5. One or more reserved holes may be provided on the second connecting wall 502 so as to be connected and fixed when other components are required to be installed later.

[0021] A distance sensor can be added to the side of the movable base 5 away from the base 108. The distance sensor can be linked to the motor in the telescopic assembly. The distance sensor can detect the distance from the movable base 5 to the corresponding side steel plate (the side steel plate that the auxiliary welding gun 8 needs to weld on). By linking the distance sensor with the motor in the telescopic assembly, the purpose of automatically controlling the movement distance of the movable base 5 relative to the base 108 can be achieved by pre-setting parameters. This implementation process can be directly implemented using existing technology, so it will not be described in detail here.

[0022] An alarm unit can be added to the movable seat 5. The alarm unit is linked with the distance sensor so that an alarm is triggered when the distance sensor detects that the distance between the movable seat 5 and the corresponding side steel plate exceeds a preset threshold.

[0023] All of the above-mentioned connectors can be screws, bolts, etc.

[0024] An auxiliary seat 3 with a telescopic component is installed in the auxiliary connection assembly via a connector. Then, the power is connected, and the motor 401 drives the worm 401 to extend (running away from the welding torch 1011) via the worm gear 402. Then, on this side, the movable seat 5 is connected to the end of the worm 401 using a connector, thus forming a welding carriage structure for welding the steel plate seam of the I-beam joint of the underground continuous wall, containing two welding torches. Then, the motor 401 drives the worm 401 via the worm gear 402 to continue extending the movable seat 5 to the desired position (e.g., ...). Figure 9 As shown in the diagram, by operating the dual welding torches (welding torch 1011 and auxiliary welding torch 8), simultaneous welding on both sides can be performed. The specific operation process of the dual welding torches can be directly implemented using existing technology, so it will not be described in detail here.

[0025] Disconnect the connecting piece between the movable seat 5 and the end of the worm 401, rotate the motor 401 in the opposite direction, disengage the worm 401 from the auxiliary connecting seat 511, and remove the connecting seat 511; continue to rotate the motor 401 in the opposite direction, disengage the worm 401 from the hole 231, then disconnect the connecting piece between the auxiliary seat 3 and the auxiliary connecting assembly, and remove the auxiliary seat 3 equipped with the telescopic assembly.

[0026] The aforementioned auxiliary connection components, auxiliary seat 3 equipped with telescopic components, and movable seat 5, etc., can be used in addition to... Figure 1 Besides the gas shielded welding automatic trolley shown, it can also be applied to other applications. Figure 1 On a single-sided welding carriage with a similar structure.

[0027] The aforementioned worm gear and worm can also be replaced with compatible gears and gear plates, or other structures with the same function.

[0028] All of the above-mentioned undisclosed matters can be implemented using existing technologies, so they will not be elaborated here.

[0029] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A welding trolley for diaphragm wall I-beam joint steel plate welds, comprising a welding trolley, the welding trolley comprising a base, one side of the base being provided with an adjustable welding torch in four directions of up, down, left and right, characterized in that, On the other side of the base, there is an unused area. An auxiliary connecting component is provided in the unused area. An auxiliary seat is provided on the auxiliary connecting component. The auxiliary connecting component and the auxiliary seat are detachably connected. A telescopic component is provided on the auxiliary seat. One end of the telescopic component extends out of the auxiliary seat and connects to the movable seat. The telescopic component and the movable seat are detachably connected. The movable seat and the welding torch are located on both sides of the base. The bottom of the movable seat is provided with casters. An auxiliary welding torch is provided on the movable seat. The auxiliary welding torch and the welding torch correspond to the welds on both sides of the I-beam of the underground continuous wall.

2. The diaphragm wall I-beam joint steel plate weld welding trolley according to claim 1, characterized in that, The base is connected to a lifting handle via a support rod. A first connecting hole is provided on the support rod. The auxiliary connecting assembly includes a base plate corresponding to the idle area, a side rod corresponding to the support rod, and a connecting block. Both the side rod and the connecting block are connected to the base plate. The side rod is connected to the first connecting hole on the support rod via a connector. The bottom of the base plate is fixedly connected to the base of the idle area by welding. The connecting block is fixedly connected to the side of the base plate away from the welding gun. The base plate has at least one second connecting hole, and the connecting block has at least one third connecting hole.

3. The welding trolley for welding the steel plate of the I-beam joint of the diaphragm wall according to claim 2, characterized in that, The auxiliary seat is connected to the second and third connecting holes via a connector; The telescopic assembly includes a motor, a worm gear, and a worm. The worm gear and the worm are adapted to each other. The motor is fixed above the auxiliary seat. The output shaft of the motor is inserted into the auxiliary seat and connected to the worm gear embedded in the auxiliary seat to control the rotation of the worm gear. The worm passes through the auxiliary seat, and the worm gear meshes with the worm. The extension and retraction of the worm are controlled by the rotation of the worm gear. The connecting block is provided with a hole, and one end of the worm passes through the hole and connects to the movable seat.

4. The diaphragm wall I-beam joint steel plate welds welding trolley according to claim 3, characterized in that, The movable seat has a first connecting wall near the base, and an auxiliary connecting seat is provided on the first connecting wall. A bearing is provided between the auxiliary connecting seat and the first connecting wall. A fourth connecting hole is provided on the auxiliary connecting seat. The bearing, auxiliary connecting seat, fourth connecting hole and worm gear are coaxially arranged. The end of the worm gear is inserted into the fourth connecting hole and forms a detachable connection through a connector.

5. The diaphragm wall I-beam joint steel plate welds welding trolley according to claim 4, characterized in that, The movable base is equipped with a clamping seat for connecting the auxiliary welding gun, a control clamping seat, and a slider assembly for adjusting the auxiliary welding gun in four directions (up, down, left, and right).

6. The diaphragm wall I-section joint steel plate welds welding trolley according to claim 4, characterized in that, In the direction of travel of the welding trolley, the front end of the movable seat is provided with a second connecting wall, and the second connecting wall is provided with a reserved hole.

7. The diaphragm wall I-section joint steel plate welds welding trolley according to claim 4, characterized in that, A distance sensor is provided on the side of the movable base away from the base, and the distance sensor is linked to the motor in the telescopic assembly.

8. The welding trolley for welding the steel plate joint of the I-beam in a diaphragm wall according to claim 7, characterized in that, The mobile base is equipped with an alarm unit, which is linked to the distance sensor.