A mobile operation platform for sand blasting and paint spraying of the inner wall of a pressure steel pipe

Abstract

The utility model relates to pressure steel pipe paint spraying technical field, specifically disclose a kind of mobile operation platform of pressure steel pipe inner wall sand blasting and paint spraying, including the main frame of fixed connection to ground, the movable platform of being installed with horizontal sliding in main frame, movable platform passes through main frame and can be moved to the left side or right side of main frame, so that movable platform enters into pressure steel pipe;Limiting structure is installed in main frame, for locking movable platform;It further includes support frame, the bottom of support frame is placed in pressure steel pipe, and the top of support frame is connected to the bottom of movable platform.Movable platform moves to pressure steel pipe, cooperation limiting structure completes the locking of movable platform, so that movable platform moves after fixed, after forming the work platform of sand blasting and paint spraying, support frame is installed in the bottom of movable platform, compared with the mode of installing full-tower scaffold, the efficiency of the utility model is higher to build and disassemble, so that the overall operation efficiency of pressure steel pipe sand blasting and paint spraying is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure steel pipe painting technology, specifically to a mobile operation platform for sandblasting and painting the inner wall of pressure steel pipes. Background Technology

[0002] In water conservancy and hydropower projects, pressure steel pipes are a key component of the water transmission system, and the quality of their inner wall corrosion protection directly affects the service life and safe operation of the water transmission system.

[0003] Currently, the main construction steps for anti-corrosion of the inner wall of pressure steel pipes include: 1. Sandblasting the inner wall of the pressure steel pipe to remove rust, and 2. Spraying anti-corrosion coating on the rust-removed pressure steel pipe.

[0004] Pressure steel pipes are large in length, diameter and weight. Currently, in the sandblasting and painting (anti-corrosion coating) of pressure steel pipes, full-span scaffolding needs to be erected inside the pressure steel pipe. Workers complete the sandblasting and painting on the full-span scaffolding. When carrying out sandblasting and painting operations on multiple pressure steel pipes, the full-span scaffolding needs to be frequently installed and dismantled, which is time-consuming and results in low efficiency of sandblasting and painting operations on pressure steel pipes. Utility Model Content

[0005] The purpose of this utility model is to provide a mobile operating platform for sandblasting and painting the inner wall of pressure steel pipes, so as to solve the problems in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe includes a main frame fixedly connected to the ground, a horizontally sliding mobile platform installed inside the main frame, the mobile platform passing through the main frame and moving to the left or right side of the main frame, so that the mobile platform enters the pressure steel pipe on the left or right side respectively; a limiting structure is installed inside the main frame for locking the mobile platform.

[0007] Furthermore, it also includes a support frame, the bottom of which is placed inside a pressure steel pipe, and the top of which is connected to the bottom of the mobile platform.

[0008] Furthermore, multiple rollers are installed within the main frame, with the rollers respectively positioned at the top and bottom of the mobile platform.

[0009] Furthermore, the main frame that is fixedly connected to the ground is specifically configured such that a pad is fixedly installed at the bottom of the main frame and the pad is anchored to the ground.

[0010] Furthermore, the limiting structure is a limiting bolt, with limiting holes provided at the left and right ends of the moving platform, and fixing holes provided on the main frame, through which the limiting bolt passes.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: The mobile platform can move through the main frame to the left or right side of the main frame. The mobile platform moves into the pressure steel pipe and is locked in place by the limiting structure, thus fixing the mobile platform after it has moved. After the support frame is installed at the bottom of the mobile platform, a sandblasting and painting work platform is formed. Compared with the method of installing a full scaffold as a work platform for sandblasting and painting, this utility model has higher efficiency in both assembly and disassembly, thereby improving the overall efficiency of sandblasting and painting of pressure steel pipes. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a top view of the present invention.

[0015] The labels in the diagram are as follows: 1-Main frame, 2-Moving platform, 3-Roller, 4-Plate, 5-Support frame. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0017] like Figures 1-3 As shown, a mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe includes a main frame 1 fixedly connected to the ground. A horizontally sliding mobile platform 2 is installed inside the main frame 1. The mobile platform 2 can move through the main frame 1 to the left or right side of the main frame 1, so that the mobile platform 2 can enter the pressure steel pipe on the left or right side respectively. A limiting structure is installed inside the main frame 1 to lock the mobile platform 2.

[0018] In this invention, the main frame 1 is fixedly connected to the ground by welding or anchoring, providing the primary support. Workers on the ground manually push the mobile platform 2 into the pressure steel pipe, locking it in place. This quickly assembles the work platform for sandblasting and painting the pressure steel pipe, increasing both setup and disassembly efficiency and improving the overall efficiency of the sandblasting and painting process. Secondly, the left and right sides of the main frame 1 serve as workstations for sandblasting and painting the pressure steel pipe. The mobile platform 2 is moved to the right side of the main frame 1, leaving space on the left side for hoisting the pressure steel pipe to the left workstation. After hoisting the pressure steel pipe to the left workstation, without disassembling the hoisting mechanism, the mobile platform 2 is moved to the left workstation of the main frame 1, moving it into the left side of the pressure steel pipe. The locking structure then secures the mobile platform 2, supporting its left end. Workers can stand on mobile platform 2 to perform sandblasting and painting on the inner wall of the left-side pressure steel pipe. While sandblasting and painting the left-side pressure steel pipe, because mobile platform 2 is located on the left side of the main frame 1, space is left on the right side of the main frame 1 for hoisting another pressure steel pipe to wait on the right side. Once the pressure steel pipe on the left side has been sandblasted and painted, the work platform is switched to the right side, where workers can begin sandblasting and painting the pressure steel pipe. When mobile platform 2 moves to the right side, space is left on the left side for hoisting away the completed pressure steel pipe, and the next pressure steel pipe is hoisted and waited for, repeating the cycle. This reduces the time spent setting up scaffolding and hoisting and stabilizing the pressure steel pipes, improving the efficiency of sandblasting and painting. During the movement of mobile platform 2 through the main frame 1, it is ensured that mobile platform 2 is approximately aligned with the space it passes through to avoid swaying or angular deviation during movement. Given the current size of pressure steel pipes used in water conservancy and hydropower projects, it is only necessary to provide a working surface so that workers can be inside the pressure steel pipe. There is no need to raise or lower the working surface, which allows workers to complete sandblasting and painting work.

[0019] The main frame 1 is a truss structure welded from square steel tubes, possessing excellent strength and rigidity. To achieve a lightweight design, the load-bearing panels of the main frame 1 utilize large-area perforated anti-slip steel plates or grating panels. This design significantly reduces weight while maintaining load-bearing capacity, facilitating hoisting and transportation, and preventing the accumulation of abrasives and coatings, thus improving operational safety. The mobile platform 2 also employs a truss structure welded from square steel tubes, with its top surface covered by perforated panels, forming a complete working surface.

[0020] Furthermore, it also includes a support frame 5. The specific structure of the support frame 5 can be either a mechanical screw jack or a manual hydraulic jack. The bottom of the support frame 5 is placed inside the pressure steel pipe, and the top of the support frame 5 is connected to the bottom of the mobile platform 2. The support frame 5 is installed at the bottom of the pressure steel pipe by abutment support, and can be set at either the left or right end of the pressure steel pipe. When the mobile platform 2 moves to the left, the support frame 5 is set at the bottom of the left end of the mobile platform 2; when the mobile platform 2 moves to the right, the support frame 5 is set at the bottom of the right end of the mobile platform 2. The part of the pressure steel pipe covered by the bottom of the support frame 5 can be simply sandblasted and painted after the support frame 5 is removed. The position of the support frame 5 inside the pressure steel pipe is usually chosen at the end of the pressure steel pipe. After the support frame 5 is removed, the part covered by the bottom of the support frame 5 can be simply sandblasted and painted by workers standing outside the pressure steel pipe.

[0021] Furthermore, multiple rollers 3 are installed within the main frame 1, with the rollers 3 respectively positioned at the top and bottom of the mobile platform 2. In this embodiment, there are a total of four rollers 3, two mounted on the top of the mobile platform 2 and two mounted on the bottom, to reduce sliding friction during the movement of the mobile platform 2 and reduce the wear and tear caused by manual pushing. The rollers 3 can be made of nylon or polyurethane. These rollers 3, installed within the main frame 1, effectively support the mobile platform 2 and reduce friction; they also serve a guiding function, ensuring the accuracy of the mobile platform 2's movement trajectory.

[0022] Furthermore, the main frame 1, which is fixedly connected to the ground, specifically comprises: a pad 4 fixedly installed at the bottom of the main frame 1, and the pad 4 anchored to the ground. Anchoring holes are provided on the pad 4, and the main frame 1 is fixed by anchoring with anchor bolts, providing reliable anti-overturning stability for the entire utility model.

[0023] Furthermore, the limiting structure is a limiting bolt, with limiting holes provided at the left and right ends of the moving platform 2, and fixing holes provided on the main frame 1. The limiting bolt passes through the limiting holes and fixing holes. The limiting structure can also be a friction locking structure, for example, the limiting bolt passes through the main frame 1 by a threaded connection, and the end of the limiting bolt abuts against the moving platform 2, pressing against the platform of the moving platform 2 during rotation to achieve a locking effect.

[0024] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0025] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe, characterized in that: Includes a main frame (1) fixedly connected to the ground, and a horizontally sliding mobile platform (2) installed inside the main frame (1). The mobile platform (2) can move through the main frame (1) to the left or right side of the main frame (1) so that the mobile platform (2) can enter the pressure steel pipe on the left or right side respectively. A limiting structure is installed inside the main frame (1) to lock the moving platform (2).

2. The mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe according to claim 1, characterized in that: It also includes a support frame (5), the bottom of which is placed inside a pressure steel pipe, and the top of which is connected to the bottom of the mobile platform (2).

3. The mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe according to claim 1, characterized in that: Multiple rollers (3) are installed inside the main frame (1), and the multiple rollers (3) are respectively set at the top and bottom of the mobile platform (2).

4. The mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe according to claim 1, characterized in that: The main frame (1) that is fixedly connected to the ground is specifically: a pad (4) is fixedly installed at the bottom of the main frame (1), and the pad (4) is anchored to the ground.

5. The mobile work platform for sandblasting and painting the inner wall of a pressure steel pipe according to claim 1, characterized in that: The limiting structure is a limiting bolt. The left and right ends of the moving platform (2) are respectively provided with limiting holes, and the main frame (1) is provided with fixing holes. The limiting bolt passes through the limiting holes and fixing holes.

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