Sectional welding and positioning device for gate leaf of arc-shaped steel gate

Abstract

The utility model relates to the technical field of segmental welding and positioning of a gate leaf of an arc-shaped steel gate, and provides a segmental welding and positioning device for the gate leaf of the arc-shaped steel gate, which comprises convex positioning steel plates arranged on two sides of an upper paging section, concave positioning steel plates arranged on two sides of a lower paging section, and flange guide steel plates arranged at the front end of the gate leaf respectively. Precise positioning of the upper paging section and the lower paging section is achieved through a meshing structure of the protruding block and the groove, the convex positioning steel plate is provided with the W-shaped protruding block, and the concave positioning steel plate is provided with a matched groove structure. Vertical grooves are formed in the side faces of the positioning steel plates and matched with the interference positioning strips for welding and fixing, and the installation precision of the positioning element is ensured. By means of the convex-concave meshing guide structure, cooperative fixing of the positioning strips and multi-positioning design of the W-shaped joint face, the problem that traditional welding positioning precision is insufficient is effectively solved, the segmental butt joint precision of the gate leaf is remarkably improved, welding deformation is reduced, and the device has the advantages of being reliable in positioning, high in installation efficiency and capable of being repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of segmented welding and positioning technology for arc-shaped steel gate leaf, and in particular to a segmented welding and positioning device for arc-shaped steel gate leaf. Background Technology

[0002] In water conservancy and hydropower engineering construction, the arc-shaped steel gate is the most widely used gate type. It has more advantages than the vertical lift flat steel gate and the horizontal lift flat steel gate in terms of application conditions, economy, operation and management, and landscape.

[0003] As a crucial component of curved steel gates, the gate leaf is greatly constrained by transportation conditions and installation environment, often requiring it to be transported in sections. Precise positioning is a significant challenge during the installation of these sections.

[0004] Traditional segmented welding and positioning of gate leaves has the problem of low precision, which may lead to deformation and misalignment of the gate leaves after welding, affecting the overall performance of the arc-shaped steel gate.

[0005] Therefore, there is an urgent need to develop a segmented welding and positioning device for arc-shaped steel gate leaves to overcome the shortcomings of existing technologies. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a segmented welding and positioning device for arc-shaped steel gate leaves, thereby improving the positioning accuracy of segmented welding and positioning of the gate leaves and increasing on-site construction efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A segmented welding and positioning device for an arc-shaped steel gate leaf includes: two upper convex positioning steel plates respectively disposed on both sides of an upper leaf section; a lower concave positioning steel plate respectively disposed on both sides of a lower leaf section; and an upper flange guide steel plate and a lower flange guide steel plate respectively disposed at the front ends of the upper and lower leaf sections. The upper convex positioning steel plate has a protrusion at one end near the lower concave positioning steel plate, and the lower concave positioning steel plate has a groove at one end near the upper convex positioning steel plate, wherein the protrusion and groove are matched.

[0009] The upper flange guide steel plate has the same structure as the upper convex positioning steel plate, and the lower flange guide steel plate has the same structure as the lower concave positioning steel plate. The upper convex positioning steel plate, the lower concave positioning steel plate, the upper flange guide steel plate, and the lower flange guide steel plate are all vertically arranged at the junction of the upper and lower page sections.

[0010] Preferably, the upper convex positioning steel plate, the lower concave positioning steel plate, the upper flange guide steel plate, and the lower flange guide steel plate all have vertical grooves of the same size on their sides; a positioning strip is connected to the groove of the upper convex positioning steel plate and the lower concave positioning steel plate; another positioning strip is connected to the groove of the upper flange guide steel plate and the lower flange guide steel plate.

[0011] Preferably, the positioning strip is interference-fitted with the upper convex positioning steel plate, the lower concave positioning steel plate, the upper flange guide steel plate, and the lower flange guide steel plate.

[0012] Preferably, the protrusion on the upper convex positioning steel plate near the lower concave positioning steel plate is W-shaped, and the groove on the lower concave positioning steel plate near the upper convex positioning steel plate matches the protrusion.

[0013] Preferably, there are two upper flange guide plates and two lower flange guide plates.

[0014] This utility model discloses a segmented welding and positioning device for arc-shaped steel gate leaf, which has the following beneficial effects.

[0015] This utility model includes convex positioning steel plates on both sides of the upper leaf section, concave positioning steel plates on both sides of the lower leaf section, and flange guide steel plates located at the front end of the door leaf. Precise positioning of the upper and lower leaf sections is achieved through the meshing structure of protrusions and grooves. The convex positioning steel plates are equipped with W-shaped protrusions, and the concave positioning steel plates are equipped with matching groove structures. Vertical grooves are formed on the sides of each positioning steel plate, which are then welded and fixed with interference-fit positioning strips to ensure the installation accuracy of the positioning elements. This device, through its convex-concave meshing guide structure, coordinated fixing with positioning strips, and multi-positioning design with W-shaped mating surfaces, effectively solves the problem of insufficient positioning accuracy in traditional welding, significantly improves the segmentation and docking accuracy of the door leaf, reduces welding deformation, and features reliable positioning, high installation efficiency, and reusability. Attached Figure Description

[0016] Figure 1 A front view schematic diagram of the structure after the upper and lower page sections are positioned by the door leaf segmentation positioning device.

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-section AA in the middle.

[0018] Figure 3 A schematic diagram of the installation of the door leaf segmentation positioning device.

[0019] Figure 4 This is a diagram illustrating the process of locating the previous and next page breaks.

[0020] Figure 5 for Figure 3A magnified view of a portion of point A in the middle.

[0021] Figure 6 for Figure 4 A magnified view of a portion of point B in the middle.

[0022] Figure 7 This is a schematic diagram of the structure of Example 3.

[0023] In the attached diagram: 1. Upper convex positioning steel plate; 2. Lower concave positioning steel plate; 3. Upper flange guide steel plate; 4. Lower flange guide steel plate; 5. Upper leaf section; 6. Lower leaf section; 7. Positioning strip. Detailed Implementation

[0024] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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. Example 1

[0026] Reference Figures 1 to 6 A segmented welding and positioning device for an arc-shaped steel gate leaf includes: two upper convex positioning steel plates 1 respectively disposed on both sides of the upper leaf section 5; a lower concave positioning steel plate 2 respectively disposed on both sides of the lower leaf section 6; an upper flange guide steel plate 3 and a lower flange guide steel plate 4 respectively disposed at the front ends of the upper leaf section 5 and the lower leaf section 6; the upper convex positioning steel plate 1 has a protrusion at one end near the lower concave positioning steel plate 2, and the lower concave positioning steel plate 2 has a groove at one end near the upper convex positioning steel plate 1, with the protrusion and groove matching;

[0027] The upper flange guide plate 3 has the same structure as the upper convex positioning plate 1, and the lower flange guide plate 4 has the same structure as the lower concave positioning plate 2. The upper convex positioning plate 1, the lower concave positioning plate 2, the upper flange guide plate 3, and the lower flange guide plate 4 are all vertically positioned at the junction of the upper leaf section 5 and the lower leaf section 6. Preferably, in this embodiment, there are two upper flange guide plates 3 and two lower flange guide plates 4.

[0028] The fabrication, installation, and use of the segmented welding and positioning device for the arc-shaped steel gate leaf in this embodiment are as follows:

[0029] S1. Cut the selected steel plate with a thickness between 16mm and 20mm into an upper convex positioning steel plate 1, a lower concave positioning steel plate 2, an upper flange guide steel plate 3, and a lower flange guide steel plate 4.

[0030] S2, Press the upper convex positioning steel plate 1 cut in S1 into... Figure 1 and Figure 3 The position is welded to the web plate of beam 5 in the upper page section;

[0031] S3. Press the lower concave positioning steel plate 2, which was cut in S1, into... Figure 1 and Figure 3 The position is welded to the web plate of the lower pagination section 6 beam; ensure that the welding position is precisely aligned with the upper section convex positioning steel plate 1.

[0032] S4. Cut the upper flange guide steel plate 3 as completed in S1. Figure 1 and Figure 3 The position is welded to the upper page section 5 flange plate;

[0033] S5. Cut the lower flange guide steel plate 4 as completed in S1. Figure 1 and Figure 3 The position is welded to the lower flange plate 6; ensure that the welding position is precisely aligned with the upper flange guide plate 3 to complete the fabrication.

[0034] Before hoisting the arched gate leaf, the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4 must be welded to the arched gate leaf respectively. Then, as follows... Figure 4 As shown, hoist the lower page section 6 into place and adjust and fix it in place according to the design drawings and technical specifications. Figure 1 As shown, the upper leaf section 5 is hoisted and its position adjusted until the lower concave positioning steel plate 2 and the upper convex positioning steel plate 1 are precisely aligned, and the lower flange guide steel plate 4 and the upper flange guide steel plate 3 are precisely aligned. Then, the upper and lower leaf sections 6 of the arc-shaped gate are welded together. After welding, the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4 are removed. A comprehensive quality inspection is then conducted on the welded arc-shaped gate, including the welding quality and the positional accuracy of the alignment between the upper and lower arc-shaped gate sections, to ensure that the arc-shaped gate meets the design requirements. Example 2

[0035] Based on Example 1, please refer to Figures 2 to 6Preferably, in this embodiment, the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4 are all provided with vertical grooves of the same size on their sides; a positioning strip 7 is connected to the groove of the upper convex positioning steel plate 1 and the lower concave positioning steel plate 2; another positioning strip 7 is connected to the groove of the upper flange guide steel plate 3 and the lower flange guide steel plate 4.

[0036] Preferably, in this embodiment, the positioning strip 7 is interference-fitted with the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4.

[0037] like Figure 3 and Figure 5 As shown in this embodiment, before hoisting, when welding the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4 to the arc-shaped gate leaf, a positioning strip 7 is used to fix the upper convex positioning steel plate 1 and the lower concave positioning steel plate 2, and another positioning strip 7 is used to fix the upper flange guide steel plate 3 and the lower flange guide steel plate 4. Then, the upper convex positioning steel plate 1, the lower concave positioning steel plate 2, the upper flange guide steel plate 3, and the lower flange guide steel plate 4 are welded to the arc-shaped gate leaf respectively. The positioning strip 7 enables the welded upper... The positioning of the upper section convex positioning steel plate 1 and the lower section concave positioning steel plate 2 is more precise, and only one of the upper section convex positioning steel plate 1 and the lower section concave positioning steel plate 2 needs to be supported during welding, which can improve the welding efficiency of the upper section convex positioning steel plate 1 and the lower section concave positioning steel plate 2; the positioning strip 7 can make the positioning of the welded upper section flange guide steel plate 3 and the lower section flange guide steel plate 4 more precise, and only one of the upper section flange guide steel plate 3 and the lower section flange guide steel plate 4 needs to be supported during welding, which can improve the welding efficiency of the upper section flange guide steel plate 3 and the lower section flange guide steel plate 4; after welding, the positioning strip 7 can be directly removed, which is convenient and quick. Example 3

[0038] Based on Examples 1 and 2, please refer to Figure 7 Preferably, in this embodiment, the protrusion of the upper convex positioning steel plate 1 near the lower concave positioning steel plate 2 is W-shaped, and the groove of the lower concave positioning steel plate 2 near the upper convex positioning steel plate 1 matches the protrusion. By matching the W-shaped protrusion with the groove, the positioning accuracy can be improved.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A segmented welding and positioning device for an arc-shaped steel gate leaf, characterized in that, include: Two upper section convex positioning steel plates (1) are respectively provided on both sides of the upper page section (5), two lower section concave positioning steel plates (2) are respectively provided on both sides of the lower page section (6), and upper section flange guide steel plates (3) and lower section flange guide steel plates (4) are respectively provided at the front end of the upper page section (5) and the lower page section (6); the upper section convex positioning steel plate (1) is provided with a protrusion at the end near the lower section concave positioning steel plate (2), and the lower section concave positioning steel plate (2) is provided with a groove at the end near the upper section convex positioning steel plate (1), and the protrusion matches the groove; The upper flange guide steel plate (3) has the same structure as the upper convex positioning steel plate (1), and the lower flange guide steel plate (4) has the same structure as the lower concave positioning steel plate (2). The upper convex positioning steel plate (1), the lower concave positioning steel plate (2), the upper flange guide steel plate (3), and the lower flange guide steel plate (4) are all vertically arranged at the junction of the upper page section (5) and the lower page section (6).

2. The arc-shaped steel gate leaf segment welding and positioning device according to claim 1, characterized in that, The upper convex positioning steel plate (1), the lower concave positioning steel plate (2), the upper flange guide steel plate (3), and the lower flange guide steel plate (4) all have vertical grooves of the same size on their sides; a positioning strip (7) is connected in the groove of the upper convex positioning steel plate (1) and the lower concave positioning steel plate (2); another positioning strip (7) is connected in the groove of the upper flange guide steel plate (3) and the lower flange guide steel plate (4).

3. The arc-shaped steel gate leaf segment welding and positioning device according to claim 2, characterized in that, The positioning strip (7) is interference-fitted with the upper convex positioning steel plate (1), the lower concave positioning steel plate (2), the upper flange guide steel plate (3), and the lower flange guide steel plate (4).

4. The arc-shaped steel gate leaf segment welding and positioning device according to claim 1, characterized in that, The upper convex positioning steel plate (1) has a W-shaped protrusion at one end near the lower concave positioning steel plate (2), and the lower concave positioning steel plate (2) has a groove at one end near the upper convex positioning steel plate (1) that matches the protrusion.

5. The arc-shaped steel gate leaf segment welding and positioning device according to claim 1, characterized in that, There are two of each of the upper flange guide steel plate (3) and the lower flange guide steel plate (4).

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