Large steel structure welding mobile work platform

Abstract

The utility model relates to large -scale steel structure welding mobile type operation platform, including support base, operation platform, ladder structure and lifting assembly, the lifting assembly includes cross bar and control assembly, wherein: Cross bar installs on support base, Control assembly rotationally sets up on cross bar, and bottom can extend downward to make universal wheel from ground, Control assembly includes pivot, support leg and spacing cylinder, wherein: Pivot passes through cross bar and is connected with rotation, Support leg is with pivot's bottom screw joint, Spacing cylinder installs on cross bar, and spacing cylinder and support leg sliding connection, the utility model discloses through the control of lifting assembly, can make universal wheel from ground when operating, will platform fixed in the operation position, promotes the operation security, after the operation, can make universal wheel ground, the platform moves conveniently, realized the flexible switching of mobile and fixed function, improved the use convenience of platform.

Description

Technical Field

[0001] This utility model belongs to the field of work platform technology, and specifically relates to a large-scale steel structure welding mobile work platform. Background Technology

[0002] In high-altitude operations such as welding and maintenance of large steel structures, mobile work platforms are key equipment for ensuring construction efficiency and safety. Traditional mobile work platforms typically use fixed support structures or simple caster wheels for movement. However, the caster wheels of existing platforms cannot be effectively fixed during operation, and are prone to displacement due to uneven ground or external impacts, resulting in insufficient operational stability. Some platforms use manual outrigger fixing methods, which require adjusting the height of each outrigger individually. This operation is cumbersome and makes it difficult to ensure that multiple outriggers are raised and lowered synchronously, which can easily cause the platform to tilt and pose safety hazards. Utility Model Content

[0003] This utility model addresses the problems of existing technologies by providing a large-scale mobile welding platform for steel structures. The specific technical solution is as follows:

[0004] A large steel structure welding mobile work platform includes a support base, a work platform, a stepped structure, and a lifting assembly. The lifting assembly includes a crossbar and a control assembly, wherein:

[0005] The crossbar is mounted on the support base;

[0006] The control component is rotatably mounted on the crossbar, and its bottom can extend downwards to lift the casters off the ground.

[0007] The control assembly includes a rotating rod, a support leg, and a limiting cylinder, wherein:

[0008] The rotating rod passes through the crossbar and is rotatably connected to it;

[0009] The support leg is screwed to the bottom of the rotating rod;

[0010] The limiting cylinder is installed on the crossbar, and the limiting cylinder and the support leg are slidably connected to restrict the rotation of the support leg, thereby forcing relative rotation between the rotating rod and the support leg.

[0011] As a further technical solution of this utility model, the control component also includes a grounding foot, which is connected to the bottom of the support leg via a universal joint.

[0012] As a further technical solution of this utility model, the control component also includes a handle, which is connected to the top of the rotating rod, so that the operator can apply force to drive the rotating rod to rotate.

[0013] As a further technical solution of this utility model, the control components are provided in at least two sets, which are arranged at intervals along the crossbar trajectory.

[0014] As a further technical solution of this utility model, the lifting assembly also includes a transmission assembly, which includes a sprocket and a transmission chain, wherein:

[0015] The sprockets are respectively installed outside the rotating rod, and multiple sprockets are connected by a transmission chain.

[0016] As a further technical solution of this utility model, the crossbar has a hollow structure, and the transmission component is arranged in the hollow structure of the crossbar.

[0017] As a further technical solution of this utility model, the support base is a horizontally arranged rectangular structure, and several sets of universal wheels are arranged along its trajectory at the bottom.

[0018] The work platform is located above one side of the support base and is surrounded by three sides of enclosure.

[0019] The stepped structure is laid at an angle from the other side of the support base toward the working platform, and guardrails are installed on both sides of the laying path of the stepped structure.

[0020] The beneficial effects of this utility model are as follows:

[0021] (1) Flexible switching between mobile and fixed functions;

[0022] By controlling the lifting components, the casters can be lifted off the ground during operation to fix the platform in the working position and improve operational safety; after the operation is completed, the casters can be brought back to the ground to facilitate platform movement, realizing flexible switching between moving and fixed functions and improving the platform's ease of use.

[0023] (2) Innovative design of the lifting assembly;

[0024] In the control assembly, the rotating rod and the support leg are connected by a screw thread to achieve transmission. The limit sleeve restricts the rotation of the support leg, forcing the rotating rod and the support leg to rotate relative to each other, thereby realizing the raising and lowering of the support leg. This design converts rotary motion into linear motion, has a simple structure and reliable transmission, and eliminates the need for complex hydraulic or electric systems, reducing costs and maintenance difficulty.

[0025] (3) Multi-component collaborative working mechanism

[0026] At least two sets of control components are set up and arranged at intervals along the crossbar to form a stable support surface, which improves the stability of the platform during operation and ensures the safety of the operators. In addition, the transmission components connect multiple rotating rods through sprockets and transmission chains, so that multiple sets of control components rotate synchronously, ensuring that the two sides of the platform rise and fall synchronously, avoiding tilting during the lifting process, and improving the stability and safety of the platform. Attached Figure Description

[0027] Figure 1A schematic diagram of the overall structure of a large steel structure welding mobile work platform is shown.

[0028] Figure 2 A schematic diagram of the lifting assembly is shown.

[0029] Figure 3 A schematic diagram of the control component is shown;

[0030] Figure 4 An exploded view of the control component is shown.

[0031] Figure 5 A schematic diagram of the transmission component is shown.

[0032] Legend:

[0033] 100. Support base; 110. Casters; 200. Working platform; 210. Three-sided enclosure; 300. Step structure; 310. Guardrail; 400. Lifting assembly; 410. Crossbar; 420. Control assembly; 421. Handle; 422. Rotating rod; 423. Support leg; 424. Limiting cylinder; 425. Grounding foot; 430. Transmission assembly; 431. Sprocket; 432. Transmission chain. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0035] Figure 1 A schematic diagram of the overall structure of a large steel structure welding mobile work platform is shown. Figure 1 The large steel structure welding mobile work platform includes a support base 100, a work platform 200, a stepped structure 300, and a lifting assembly 400, wherein:

[0036] The support base 100 has a horizontally arranged rectangular structure, and several sets of casters 110 are arranged along its trajectory at the bottom to facilitate sliding and changing the maintenance position.

[0037] The work platform 200 is set above one side of the support base 100 and is used to support maintenance personnel to work at height. It is surrounded by three fences 210 to protect the safety of the workers.

[0038] The stepped structure 300 is laid at an angle from the other side of the support base 100 toward the working platform 200, which facilitates the position change of maintenance personnel between the ground and the working platform 200. Guardrails 310 are installed on both sides of the laying path of the stepped structure 300 to ensure the safety of maintenance personnel during the climbing process.

[0039] The lifting assembly 400 is installed on the support base 100 to lift the casters 110 off the ground during operation, thereby improving safety during operation. At least two sets of lifting assemblies 400 are provided, which are arranged at intervals along the length of the support base 100. The two sets of lifting assemblies 400 arranged at intervals can form a support surface to improve the stability of the support.

[0040] Figure 2 A schematic diagram of the lifting assembly 400 is shown. Figure 2 In the middle, the lifting assembly 400 includes a crossbar 410, a control assembly 420, and a transmission assembly 430, wherein:

[0041] The crossbar 410 is mounted on the support base 100 and has a hollow structure;

[0042] The control component 420 is rotatably mounted on the crossbar 410, and its bottom can extend downward to lift the caster wheel 110 off the ground; at least two sets of control components 420 are provided, and they are arranged at intervals along the trajectory of the crossbar 410; at least two sets of control components 420 can ensure that the device can still be stably supported after being lifted.

[0043] The transmission component 430 is arranged in the hollow structure of the crossbar 410, which can protect the transmission component 430 itself and is used to drive the two sets of control components 420 to rotate synchronously, so as to ensure that the two sides of the device can be raised and lowered synchronously and avoid the device tilting during the raising and lowering process.

[0044] Figure 3 A schematic diagram of the control component 420 is shown. Figure 4 An exploded view of the control component 420 is shown. Figure 3 and Figure 4 In the middle, the control component 420 includes a handle 421, a rotating rod 422, a support leg 423, a limiting sleeve 424, and a grounding foot 425, wherein:

[0045] The handle 421 is attached to the top of the lever 422, making it convenient for the operator to apply force to drive the lever 422 to rotate;

[0046] The rotating rod 422 passes through the crossbar 410 and is rotatably connected to it. The rotating rod 422 and the crossbar 410 are rotatably connected by a bearing, so that the position of the rotating rod 422 and the crossbar 410 does not change when rotating.

[0047] The support leg 423 is screwed to the bottom of the rotating rod 422; and the bottom of the rotating rod 422 is screwed to the support leg 423. Therefore, when the two rotate relative to each other, the support leg 423 can move downward by the screw, forming a downward extension of the control component 420.

[0048] The limiting cylinder 424 is installed on the crossbar 410, and the limiting cylinder 424 and the support leg 423 are slidably connected to limit the rotation of the support leg 423, thereby forcing the rotating rod 422 and the support leg 423 to rotate relative to each other.

[0049] The grounding foot 425 is connected to the bottom of the support leg 423 via a universal joint, which increases the grounding area and allows the grounding angle to be changed to adapt to the ground structure, ensuring the stability of the support.

[0050] Figure 5 A schematic diagram of the transmission assembly 430 is shown. Figure 5 In the transmission assembly 430, there are sprockets 431 and transmission chains 432, wherein:

[0051] The sprocket 431 is correspondingly set outside the rotating rod 422, and multiple sprockets 431 are connected by transmission chain 432. Here, "corresponding" refers to the correspondence in quantity and position. That is, each rotating rod 422 is coaxially connected to a sprocket 431, and the transmission chain 432 is used to make multiple rotating rods 422 rotate synchronously. That is, multiple sets of control components 420 extend downward synchronously to make the support base 100 rise and fall stably.

[0052] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A large steel structure welding mobile work platform, comprising a support base (100), a work platform (200), a ladder structure (300) and a lifting assembly (400), characterized in that, The lifting assembly (400) includes a crossbar (410) and a control assembly (420), wherein: The crossbar (410) is mounted on the support base (100); The control component (420) is rotatably mounted on the crossbar (410), and its bottom can extend downward to lift the caster wheel (110) off the ground; The control component (420) includes a rotating rod (422), a support leg (423), and a limiting cylinder (424), wherein: The rotating rod (422) passes through the crossbar (410) and is rotatably connected to it; The support leg (423) is screwed to the bottom of the rotating rod (422); The limiting cylinder (424) is installed on the crossbar (410), and the limiting cylinder (424) and the support leg (423) are slidably connected to restrict the rotation of the support leg (423) and force the rotating rod (422) and the support leg (423) to rotate relative to each other.

2. The large steel structure welded mobile work platform according to claim 1, characterized in that: The control component (420) also includes a grounding foot (425), which is connected to the bottom of the support leg (423) via a universal joint.

3. The mobile welding work platform for large steel structures according to claim 2, characterized in that: The control assembly (420) also includes a grip (421) connected to the top of the lever (422) to facilitate the operator to apply force to drive the lever (422) to rotate.

4. The mobile welding work platform for large steel structures according to claim 3, characterized in that: The control components (420) are provided in at least two sets, which are arranged at intervals along the trajectory of the crossbar (410).

5. The mobile welding work platform for large steel structures of claim 3, wherein: The lifting assembly (400) further includes a transmission assembly (430), which includes a sprocket (431) and a transmission chain (432), wherein: The sprockets (431) are correspondingly arranged outside the rotating rod (422), and multiple sprockets (431) are connected by a transmission chain (432).

6. The mobile welding work platform for large steel structures of claim 5, wherein: The crossbar (410) has a hollow structure, and the transmission assembly (430) is arranged in the hollow structure of the crossbar (410).

7. The mobile welding work platform for large steel structures of claim 3, wherein: The support base (100) has a horizontally arranged rectangular structure, and several sets of casters (110) are arranged along its trajectory at the bottom; The work platform (200) is located above one side of the support base (100), and is surrounded by three sides of enclosure (210). The stepped structure (300) is laid at an angle from the other side of the support base (100) toward the working platform (200), and guardrails (310) are provided on both sides of the laying path of the stepped structure (300).

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