Auxiliary device for installing stiffening plate in giant steel pipe

The design of the support and adjustment mechanism solved the problem of complex angle and position adjustment during the installation of stiffening plates inside giant steel pipes, achieving a fast and safe installation process and improving work efficiency.

CN224209365UActive Publication Date: 2026-05-08SICHUAN HUIJIN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN HUIJIN CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

When installing stiffening plates inside giant steel pipes, existing devices require frequent adjustments to the pipe angle and position, resulting in high installation difficulty and safety risks.

Method used

An auxiliary device including a support mechanism and an adjustment mechanism was designed. The support mechanism supports the steel pipe with multiple adjustable legs, and the adjustment mechanism drives the welding station to adjust its position through a dual-axis motor, thereby achieving rapid positioning and attitude adjustment and reducing the difficulty of using the device.

Benefits of technology

It improves the flexibility and efficiency of the equipment, reduces repeated installation and disassembly during the welding process, lowers safety risks, and simplifies the installation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel pipe inner stiffening plate installation auxiliary devices, and discloses a giant steel pipe inner stiffening plate installation auxiliary device which comprises a pipeline, a stiffening plate fixedly connected with the inner side of the pipeline and a welding table arranged on the inner side of the pipeline, a supporting mechanism is arranged on one side of the pipeline, and an adjusting mechanism is arranged on the inner side of the pipeline. The supporting mechanism comprises a supporting table, the supporting table is arranged on one side of the pipeline, a plurality of supporting cylinders are fixedly connected to the outer surface of the supporting table, sliding plates are slidably connected to the interiors of the supporting cylinders, supports are fixedly connected to the outer side surfaces of the sliding plates, clamping plates are slidably connected to the interiors of one ends of the supports, and bolts are rotatably connected to the interiors of the supports. The bolts are in threaded connection with the adjacent clamping plates, the supporting mechanism is used for providing supporting and adjusting for the welding table, the flexibility of the device is improved, the adjusting mechanism is used for welding reinforcing plates, and the using difficulty of the device is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for installing stiffening plates inside steel pipes, specifically an auxiliary device for installing stiffening plates inside giant steel pipes. Background Technology

[0002] The installation of internal stiffening plates in giant steel pipes is a process that enhances the load-bearing capacity by fixing a reinforcing structure to the inner wall of the steel pipe. It is primarily used in large-scale projects such as water conservancy and bridges. The stiffening plates need to be cut into arc shapes or segmented structures according to the inner diameter of the steel pipe. Before installation, the pipe wall must be cleaned and precisely positioned using hydraulic support frames or adjustable clamps to ensure a tight fit with the pipe wall before welding or bolting. This process faces safety risks such as confined space within the pipe, high precision requirements, and welding fumes.

[0003] A search revealed that the patent document with publication number "CN 117733287 A" mentions that "once the operator enters the pipeline, there is no space to weld the stiffening plate." The device in the document uses a suspended trolley that slides on a guide rail. The stiffening plate is welded as the trolley passes by. This device is characterized by fast welding and space saving. However, the device requires frequent rotation of the pipeline during adjustment, and the pipeline may be heavy, which increases the difficulty of using the device. At the same time, the mechanism requires frequent adjustment of the track and trolley position to change the welding point. Since the track and trolley may be heavy, the installation is difficult and not conducive to use. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for installing stiffening plates inside giant steel pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for installing stiffening plates inside giant steel pipes, comprising a pipe, a stiffening plate fixedly connected to the inside of the pipe, and a welding station set inside the pipe, wherein a support mechanism is provided on one side of the pipe, and an adjustment mechanism is provided inside the pipe;

[0006] The support mechanism includes a support platform disposed on one side of the pipe. Multiple support cylinders are fixedly connected to the outer surface of the support platform. Slide plates are slidably connected inside each support cylinder. Brackets are fixedly connected to the outer surface of each slide plate. Clamping plates are slidably connected to one end of each bracket. Bolts are rotatably connected inside each bracket. Bolts are threadedly connected to adjacent clamping plates. A fixing seat is fixedly connected to one side of each support cylinder. Threaded rods are rotatably connected inside each fixing seat. Threaded rods are threadedly connected to adjacent slide plates. An adjusting plate is rotatably connected inside the support platform. Insert rods are slidably connected to both the adjusting plate and the inside of the support platform.

[0007] Preferably, a sliding groove is provided on one side of each of the support cylinders.

[0008] Preferably, both the adjusting plate and the support have holes inside.

[0009] Preferably, each of the brackets has a sliding groove inside.

[0010] Preferably, the adjusting mechanism includes a slide, which is fixedly connected to one side of the adjusting plate. A support sleeve is slidably connected to one side of the slide. A limiting platform is fixedly connected to the lower surface of the support sleeve. A fastener is rotatably connected inside the limiting platform. A turntable is threadedly connected to one end of the fastener. The turntable is slidably connected to the support sleeve. A rotating wheel is rotatably connected to one side of the support sleeve and one side of the turntable. A gear rod is fixedly connected inside each rotating wheel. The gear rods are connected to each other through gear meshing. A dual-axis motor is fixedly connected inside the support sleeve. A rotating wheel on one side of the support sleeve is fixedly connected to the left output end of the dual-axis motor. A screw is fixedly connected to the right output end of the dual-axis motor. A support cylinder is fixedly connected to one side of the support sleeve. A sliding cylinder is slidably connected to the inner wall of the support cylinder. The screw is threadedly connected to the inner wall of the sliding cylinder. The welding station is fixedly connected to the end of the support cylinder.

[0011] Preferably, the outer wall of the slide cylinder is provided with a groove that cooperates with the support cylinder.

[0012] Preferably, the upper end of the turntable is provided with an arc-shaped structure that fits snugly against the support sleeve.

[0013] Compared with the prior art, this utility model provides an auxiliary device for installing stiffening plates inside giant steel pipes, which has the following beneficial effects:

[0014] 1. The support mechanism is used to provide support and adjustment for the welding station. The mechanism is supported by multiple adjustable legs, which allows the device to adapt to steel pipes of different diameters. The mechanism can adjust the angle between the welding station and the ground by cooperating with the adjustment mechanism, so that the device can perform welding work without repeated installation and disassembly after installation, which improves the flexibility of the device.

[0015] 2. The adjustment mechanism is used for welding reinforcing plates. This mechanism can realize the displacement and position adjustment of the welding station through the dual-axis output of the dual-axis motor. This mechanism, together with the support machine, can adjust the position and posture of the welding station more quickly, thereby improving work efficiency. At the same time, the fasteners of this mechanism can make the welding station quick to disassemble and assemble, so that the pipe only needs to be rotated once to complete all welding, reducing the difficulty of using the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the support platform in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the carriage in this utility model.

[0022] In the diagram: 1. Pipe; 2. Reinforcing plate; 3. Welding station; 4. Support mechanism; 401. Support platform; 402. Support cylinder; 403. Slide plate; 404. Bracket; 405. Clamping plate; 406. Bolt; 407. Fixing seat; 408. Threaded rod; 409. Adjusting plate; 410. Insert rod; 5. Adjusting mechanism; 501. Slide frame; 502. Support sleeve; 503. Limiting platform; 504. Fastener; 505. Turntable; 506. Rotary wheel; 507. Gear rod; 508. Dual-axis motor; 509. Screw; 510. Support cylinder; 511. Slide cylinder. Detailed Implementation

[0023] 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0025] This mechanism is used to adjust the posture of welding station 3. It solves the problem of existing devices requiring frequent adjustments to the angle of pipe 1. (See also...) Figure 1-5 This utility model provides a technical solution: an auxiliary device for installing stiffening plates inside giant steel pipes, including a pipe 1, a reinforcing plate 2 fixedly connected to the inside of the pipe 1, and a welding station 3 set inside the pipe 1. A support mechanism 4 is set on one side of the pipe 1, and an adjustment mechanism 5 is set inside the pipe 1.

[0026] The support mechanism 4 includes a support 401, which is located on one side of the pipe 1. Multiple support cylinders 402 are fixedly connected to the outer surface of the support 401. Slide plates 403 are slidably connected inside each support cylinder 402. Brackets 404 are fixedly connected to the outer surface of each slide plate 403. Clamping plates 405 are slidably connected to one end of each bracket 404. Bolts 406 are rotatably connected inside each bracket 404. Bolts 406 are threadedly connected to adjacent clamping plates 405. Fixed seats 407 are fixedly connected to one side of each support cylinder 402. Threaded rods 408 are rotatably connected inside each fixed seat 407. Threaded rods 408 are threadedly connected to adjacent slide plates 403. Adjusting plates 409 are rotatably connected inside the support 401. Insert rods 410 are slidably connected to both the adjusting plates 409 and the support 401.

[0027] Furthermore, a sliding groove is provided on one side of the support cylinder 402.

[0028] Furthermore, both the adjusting plate 409 and the support 401 have holes inside.

[0029] Furthermore, the bracket 404 has grooves inside. Example

[0030] This mechanism is used for welding reinforcing plate 2. It solves the problem of complex adjustments in existing devices. (See attached image) Figure 1-5Furthermore, in conjunction with Embodiment 1, the adjusting mechanism 5 includes a slide 501, which is fixedly connected to one side of the adjusting plate 409. A support 502 is slidably connected to one side of the slide 501. A limiting platform 503 is fixedly connected to the lower surface of the support 502. A fastener 504 is rotatably connected inside the limiting platform 503. A turntable 505 is threadedly connected to one end of the fastener 504. The turntable 505 is slidably connected to the support 502. A rotating wheel 506 is rotatably connected to one side of the support 502 and one side of the turntable 505. The rotating wheel 506 contains... All are fixedly connected with gear rods 507, which are connected by gear meshing. A dual-axis motor 508 is fixedly connected inside the support sleeve 502. A rotating wheel 506 on one side of the support sleeve 502 is fixedly connected to the left output end of the dual-axis motor 508. A screw 509 is fixedly connected to the right output end of the dual-axis motor 508. A support cylinder 510 is fixedly connected to one side of the support sleeve 502. A slide cylinder 511 is slidably connected to the inner wall of the support cylinder 510. The screw 509 is threadedly connected to the inner wall of the slide cylinder 511. A welding station 3 is fixedly connected to the end of the support cylinder 510.

[0031] Furthermore, the outer wall of the slide cylinder 511 is provided with a groove that mates with the support cylinder 510.

[0032] Furthermore, the upper end of the turntable 505 is provided with an arc-shaped structure that fits into the support sleeve 502.

[0033] In actual operation, when this device is used, the user places the support 401 on one side of the pipe 1. Then, the user adjusts the position of the bracket 404 using the threaded rod 408, so that the end of the bracket 404 fits against the outer wall of the pipe 1. Then, the user moves the clamping plate 405 by rotating the bolt 406, thereby clamping the pipe 1. Subsequently, the user places the dual-axis motor 508 on the upper side of the slide 501 and connects the turntable 505 to the support sleeve 502 using fasteners 504. At this time, the gear rod 507 is in a meshing state. The user can drive the left output end of the dual-axis motor 508 to move the welding station 3. When the right output end of the dual-axis motor 508 outputs, it can drive the slide cylinder 511 to slide. The slide cylinder 511 moves the welding station 3 close to the reinforcing plate 2. The welding station 3 completes the welding of the reinforcing plate 2 under the movement of the left output end of the dual-axis motor 508. The user can adjust the angle between the welding station 3 and the ground through the plug rod 410 to make subsequent welding faster. When needed, the user can rotate the pipe 1 to facilitate welding of the top area of ​​the pipe 1 with flux.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An auxiliary device for installing stiffening plates inside giant steel pipes, comprising a pipe (1), a reinforcing plate (2) fixedly connected to the inside of the pipe (1), and a welding station (3) disposed on the inside of the pipe (1), characterized in that: A support mechanism (4) is provided on one side of the pipe (1), and an adjustment mechanism (5) is provided on the inside of the pipe (1). The support mechanism (4) includes a support platform (401), which is located on one side of the pipe (1). Multiple support cylinders (402) are fixedly connected to the outer surface of the support platform (401). Slide plates (403) are slidably connected inside each support cylinder (402). Brackets (404) are fixedly connected to the outer surface of each slide plate (403). Clamping plates (405) are slidably connected to one end of each bracket (404). Bolts (405) are rotatably connected inside each bracket (404). 6) The bolts (406) are all threadedly connected to the adjacent clamping plates (405). The support cylinder (402) is fixedly connected to a fixed seat (407) on one side. The fixed seat (407) is rotatably connected to a threaded rod (408). The threaded rod (408) is threadedly connected to the adjacent sliding plate (403). The support (401) is rotatably connected to an adjusting plate (409). The adjusting plate (409) and the support (401) are slidably connected to a plug rod (410).

2. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 1, characterized in that: The support cylinder (402) has a sliding groove on one side.

3. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 1, characterized in that: Both the adjusting plate (409) and the support (401) have holes inside.

4. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 1, characterized in that: The bracket (404) has a sliding groove inside.

5. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 1, characterized in that: The adjusting mechanism (5) includes a slide (501), which is fixedly connected to one side of the adjusting plate (409). A support sleeve (502) is slidably connected to one side of the slide (501). A limiting platform (503) is fixedly connected to the lower surface of the support sleeve (502). A fastener (504) is rotatably connected inside the limiting platform (503). A turntable (505) is threaded to one end of the fastener (504). The turntable (505) is slidably connected to the support sleeve (502). A rotating wheel (506) is rotatably connected to one side of the support sleeve (502) and one side of the turntable (505). The rotating wheel (506) is fixedly connected inside. There is a gear rod (507), which is connected to each other by gear meshing. A dual-axis motor (508) is fixedly connected inside the support sleeve (502). A rotating wheel (506) on one side of the support sleeve (502) is fixedly connected to the left output end of the dual-axis motor (508). A screw (509) is fixedly connected to the right output end of the dual-axis motor (508). A support cylinder (510) is fixedly connected to one side of the support sleeve (502). A slide cylinder (511) is slidably connected to the inner wall of the support cylinder (510). The screw (509) is threadedly connected to the inner wall of the slide cylinder (511). The welding station (3) is fixedly connected to the end of the support cylinder (510).

6. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 5, characterized in that: The outer wall of the slide cylinder (511) is provided with a groove that cooperates with the support cylinder (510).

7. The auxiliary device for installing stiffening plates inside giant steel pipes according to claim 5, characterized in that: The upper end of the turntable (505) is provided with an arc-shaped structure that fits into the support sleeve (502).

Citation Information

Patent Citations

  • Welding device for stiffening plate in steel pipe and construction method

    CN117733287A