Wing-shaped square tube for additionally installing elevator steel structure well and application of wing-shaped square tube

Abstract

The invention relates to the technical field of elevator steel structures, and discloses a wing-shaped square tube used for additionally installing an elevator steel structure well and application of the wing-shaped square tube, and the wing-shaped square tube comprises a square tubular main body which serves as one of basic components of an overall structure and is used for assembling and bearing all processing mechanisms and lower structural components which the processing mechanisms belong to; the two wing plates are symmetrically welded on the outer wall of the square tubular main body, extend along the length direction of the square tubular main body and are provided with holes; the composite protective coating system sequentially comprises an epoxy zinc-rich primer layer, an epoxy micaceous iron intermediate paint layer and a fluorocarbon finish paint layer, the technical effect that full-floor positioning can be completed only through single-time total height measurement is achieved by adopting the modular assembly design of the wing-shaped square pipe and integrating longitudinal adjustable long round holes, and the overall floor positioning precision is improved. Compared with a layer-by-layer elevation measurement operation mode in the prior art, the technical defects that accumulated errors are difficult to control and the construction period is prolonged are overcome, the error-tolerant rate of the hoistway is increased, and the installation efficiency of the additionally-installed elevator is improved.

Description

Technical Field

[0001] The invention relates to the technical field of elevator steel structures, and in particular to a wing-shaped square tube for installing an elevator steel structure hoistway and application thereof. Background Art

[0002] In the installation of elevators in existing buildings, traditional steel structure shaft technology has long been limited by discrete design thinking, making it difficult to break through systemic defects. Existing technologies generally rely on a floor-by-floor measurement and adjustment operation mode. Each floor needs to independently measure the elevation and cut the length of the square tube. Although single-layer precision control can be achieved, the overall height is inaccurate due to the accumulation of errors layer by layer. Actual measurements show that the final floor height alignment pass rate of a 6-story building is less than 85%, and the measurement process accounts for nearly 20% of the total construction period. This idea of ​​"layered correction and local optimization" essentially disassembles construction machinery into isolated units, ignoring the need for coordinated allocation and dynamic compensation of system errors. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a wing-shaped square tube for installing an elevator steel structure hoistway and its application, which solves the problem that the prior art generally relies on an operation mode of floor-by-floor measurement and adjustment, and each floor needs to independently measure the elevation and cut the length of the square tube, resulting in low installation efficiency of the elevator.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wing-shaped square tube for installing an elevator steel structure hoistway, comprising: The square tubular body, as one of the basic components of the overall structure, is used to assemble and carry each processing mechanism and its subordinate structural parts; Two wing plates symmetrically welded to the outer wall of the square tubular body, the wing plates extending along the length direction of the square tubular body and provided with holes; The composite protective coating system comprises an epoxy zinc-rich primer layer, an epoxy micaceous iron intermediate paint layer and a fluorocarbon topcoat layer in sequence.

[0005] Preferably, an adjustable supporting mechanism is provided at the bottom of the wing plate, and the adjustable supporting mechanism comprises a threaded sleeve, and the threaded sleeve is fixedly connected to one side of the outer wall of the wing plate, and an adjusting screw is threadedly connected to one side of the outer wall of the threaded sleeve.

[0006] Preferably, the thickness of the composite protective coating system satisfies: The dry film thickness of the epoxy zinc-rich primer layer is 70-90μm, and the zinc powder content is ≥80%; The dry film thickness of epoxy micaceous iron intermediate paint layer is 90-110μm; The dry film thickness of the fluorocarbon topcoat layer is 50-70μm, and the PVDF resin content is ≥70%.

[0007] Preferably, the pitch of the adjusting screw is 3-5 mm.

[0008] In addition, the present invention also provides an application of a wing-shaped square tube for installing an elevator steel structure hoistway, comprising the following steps: Step 1: Measure the total height of the building; Step 2: calibrate the level of the first square tube through the adjustable support mechanism; Step 3: Connect the square tubular body with bolts; Step 4: Install the elevator door head, sill and beam through the holes.

[0009] The present invention provides a wing-shaped square tube for installing an elevator steel structure hoistway and its application. It has the following beneficial effects: 1. The present invention adopts a modular assembly design of wing-shaped square tubes and integrates longitudinally adjustable oblong holes to achieve the technical effect of completing the positioning of all floors with only a single total height measurement. Compared with the operation mode of measuring the elevation floor by floor in the prior art, the present invention solves the technical shortcomings of difficult control of cumulative errors and prolonged construction period. When installing an elevator, it is not necessary to measure the height of each floor, but only the total height, which increases the fault tolerance of the hoistway and improves the installation efficiency of the installed elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the airfoil-shaped square tube in the present invention; Figure 2 Schematic diagram of the airfoil-shaped square tube in the present invention; Figure 3 This is a diagram showing the airfoil-shaped square tube of the present invention; Figure 4 A bottom view of the airfoil-shaped square tube of the present invention; Figure 5 is a cross-sectional view of the airfoil-shaped square tube in the present invention; Figure 6 It is a schematic diagram of the sensor installation slot in the present invention.

[0011] Among them, 1. square tubular body; 2. wing plate; 3. hole; 4. epoxy zinc-rich primer layer; 5. epoxy micaceous iron intermediate paint layer; 6. fluorocarbon topcoat layer; 7. adjustable support mechanism; 701. threaded sleeve; 702. adjusting screw. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] Please see attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides a wing-shaped square tube for installing an elevator steel structure hoistway, comprising: The square tubular body 1 is one of the basic components of the overall structure and is used to assemble and carry various processing mechanisms and their subordinate structural components; Two wing plates 2 are symmetrically welded to the outer wall of the square tubular body 1, and the wing plates 2 extend along the length direction of the square tubular body 1 and are provided with holes 3; The composite protective coating system comprises an epoxy zinc-rich primer layer 4, an epoxy micaceous iron intermediate paint layer 5 and a fluorocarbon topcoat layer 6 in sequence.

[0014] An adjustable support mechanism 7 is provided at the bottom of the wing plate 2. The adjustable support mechanism 7 includes a threaded sleeve 701, which is fixedly connected to one side of the outer wall of the wing plate 2. An adjusting screw 702 is threadedly connected to one side of the outer wall of the threaded sleeve 701. The pitch of the adjusting screw 702 is 3-5 mm; Specifically, the square tubular body 1 is connected by bolts, and the hole 3 on the wing plate 2 is designed with an axial length of 80-120mm using an oblong hole. Based on the measurement data of the total height of the building, the total height is decomposed into integer sections of standard square tubes with a length of 3-6m per section. During installation, the longitudinal sliding adjustment range of the hole 3 absorbs the manufacturing tolerance (±5mm) of the single section of the square tube and the building floor height deviation (±2%), so that the installation of the door head and the sill does not need to be measured and positioned layer by layer, and the height adjustment range of ±50mm is achieved. The subsequent square tubes only need to be stacked vertically to avoid the error from layer to layer. The contact spacing design of 50-100mm ensures that the system can still identify the abnormal height between layers exceeding 3mm under the premise of measuring only the total height of the building. This solution reduces the workload of height verification during the installation process by 80%, and the deformed floors can be accurately located through data backtracking in the later operation and maintenance stage, avoiding the rework caused by the traditional solution due to the measurement of the gap size layer by layer. This design transforms the passive correction of the floor height error into active compensation of material properties, and cooperates with the overall measurement solution to achieve "one measurement, full-layer applicability".

[0015] The thickness of the composite protective coating system meets the following requirements: Epoxy zinc-rich primer layer 4 dry film thickness 70-90μm, zinc powder content ≥80%; Epoxy micaceous iron intermediate paint layer 5 dry film thickness 90-110μm; Fluorocarbon topcoat layer 6 dry film thickness 50-70μm, PVDF resin content ≥70%.

[0016] Specifically, the interior of the epoxy zinc-rich primer layer 4 contains irregular zinc powder particles embedded in epoxy resin (epoxy equivalent 450-500) to form a micro-area conductive network. The zinc powder acts as a sacrificial anode and is preferentially oxidized when the coating is damaged to protect the substrate. When the steel epoxy micaceous iron intermediate paint layer 5 is 90μm thick, the elastic modulus (3.5GPa) forms a gradient transition with the primer / topcoat. The fluorine atoms in the PVDF resin of the fluorocarbon topcoat layer 6 form a dense electron cloud barrier.

[0017] In addition, the present invention also provides an application of a wing-shaped square tube for installing an elevator steel structure hoistway, comprising the following steps: Step 1: Measure the total height of the building; Step 2: calibrate the level of the first square tube by using the adjustable support mechanism 7; Step 3: Connect the square tubular body 1 with bolts; Step 4: Install the elevator door head, sill and beam through hole 3.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wing-shaped square tube for installing an elevator steel structure hoistway, characterized in that: include: A square tubular body (1), which is one of the basic components of the overall structure and is used to assemble and carry various processing mechanisms and their subordinate structural components; Two wing plates (2) symmetrically welded to the outer wall of the square tubular body (1), the wing plates (2) extending along the length direction of the square tubular body (1) and provided with holes (3); The composite protective coating system comprises, in sequence, an epoxy zinc-rich primer layer (4), an epoxy micaceous iron intermediate paint layer (5) and a fluorocarbon topcoat layer (6).

2. A wing-shaped square tube for installing an elevator steel structure hoistway according to claim 1, characterized in that: An adjustable support mechanism (7) is provided at the bottom of the wing plate (2), the adjustable support mechanism (7) comprising a threaded sleeve (701), the threaded sleeve (701) being fixedly connected to one side of the outer wall of the wing plate (2), and an adjusting screw (702) being threadedly connected to one side of the outer wall of the threaded sleeve (701).

3. The wing-shaped square tube for installing an elevator steel structure hoistway according to claim 1, characterized in that: The thickness of the composite protective coating system satisfies: Epoxy zinc-rich primer layer (4) dry film thickness 70-90 μm, zinc powder content ≥ 80%; Epoxy micaceous iron intermediate paint layer (5) dry film thickness 90-110 μm; The fluorocarbon topcoat layer (6) has a dry film thickness of 50-70 μm and a PVDF resin content of ≥70%.

4. The wing-shaped square tube for installing an elevator steel structure hoistway according to claim 2, characterized in that: The pitch of the adjusting screw (702) is 3-5 mm.

5. An application of wing-shaped square tubes for installing elevator steel structure hoistways, characterized in that: A wing-shaped square tube for installing an elevator steel structure hoistway as described in any one of claims 1 to 4 comprises the following steps: Step 1: Measure the total height of the building; Step 2: calibrate the level of the first square tube using the adjustable support mechanism (7); Step 3: Connect the square tubular body (1) with bolts; Step 4: Install the elevator door head, sill and beam through the hole (3).

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