Corner turning plate of lifting platform for high pier
By designing corner flaps for high piers, and utilizing isosceles triangle gaps and supplementary sealing plates to cover the corner gaps, the gap problem caused by inconsistent tilt angles of the flaps was solved, thus preventing falling objects from heights and improving construction safety.
Patent Information
- Application Number
- CN202422950425.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During slipform construction, the corner positions of the high piers are not perfectly aligned due to the inconsistent tilt angles of the flaps, resulting in gaps and posing a safety hazard of falling objects from heights.
Design a corner flap for a lifting platform for high piers, including a corner flap and two standard flaps. Through the design of rotational connection and overlapping edges, an isosceles triangular gap is formed. The corner flap leans against the overlapping edge, covering the lower part of the corner gap, and the upper uncovered part is covered by a supplementary sealing plate.
This effectively avoids gaps at corners, ensuring that the flaps always fit snugly at different tilt angles, preventing objects from falling from heights and improving construction safety.
Smart Images
Figure CN223481670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting platforms, specifically to a corner flap for a lifting platform used on high piers. Background Technology
[0002] In existing technologies, slipform construction is a construction method that vertically lifts formwork. It uses a through-hole jack to climb on a support rod, which lifts the lifting frame, formwork, and operating platform together. After each layer of concrete is poured, the formwork is slipped up until the structure is finished. The lifting frame and operating platform are usually connected by a ring beam.
[0003] The upper surface of the operating platform is equipped with a walkway. To facilitate the lifting of the operating platform, a working gap is usually left between the walkway and the template. After the platform is lifted into place, a flap needs to be placed on the template of the pier to cover the working gap, ensure personnel safety, and prevent objects from falling from height.
[0004] For square piers, the inner side of the operating platform is also square. At the corner, the inner side of the walkway plate forms a right angle. Theoretically, as long as the shape is appropriate, the flaps on the walkway plates in both directions can fit together at the corner, thus avoiding gaps.
[0005] However, in actual construction, the height of the operating platform may not be consistent each time. The flap may overlap with different structures such as the bottom plate or back rib of the formwork, resulting in different tilt angles of the flap each time. Therefore, it is impossible to ensure that the two flaps can fit perfectly at each corner. There will always be an angle due to different tilt directions, which makes it easy for tools or parts to fall through the gap, causing objects to be thrown from high altitudes and creating safety hazards. Utility Model Content
[0006] The present invention aims to provide a corner flap for a lifting platform for high piers, so as to avoid gaps at the corner position and eliminate safety hazards.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a corner flap for a lifting platform of a high pier, comprising a corner flap and two standard flaps, the two standard flaps being rotatably connected to walkway panels in two adjacent directions respectively, both standard flaps being rectangular, and the side of the two standard flaps near the corner being an overlapping edge, the overlapping edge being perpendicular to the corresponding walkway panel; a corner gap is formed between the two standard flaps;
[0008] The corner flap is rotatably connected to the corner of the walkway panel. The bottom edge of the corner flap intersects with the overlapping edges of the two standard flaps respectively, and the corner flap leans against the overlapping edges of the two standard flaps.
[0009] The beneficial effects of this plan are:
[0010] 1. In the horizontal direction, the overlapping edges of the two standard flaps are perpendicular to each other, and a corner gap is formed between the two standard flaps and the walkway. Since the overlapping edges are usually at a certain angle to the horizontal plane, the corner gap is an isosceles triangle gap with the bottom edge at the corner of the walkway, the two sides coinciding with the overlapping edges, and at a certain angle to the horizontal plane.
[0011] The bottom edge of the corner flap coincides with the bottom edge of the corner gap, covering most of the area below the corner gap. The gap above the corner gap is used to accommodate changes in the tilt angle of the corner flap, thus ensuring that both sides of the corner flap can lean against the overlapping edge and avoid creating additional gaps.
[0012] Since the upper part of the corner gap is usually higher than the walkway slab, the probability of debris falling into the upper part of the corner gap is small, so it can be temporarily blocked.
[0013] 2. Regardless of how the tilt angle of the standard flap changes, the two overlapping edges are always symmetrically set on both sides of the corner flap. Although the standard flap and the corner flap flip in different directions, the corner flap can always lean against the overlapping edges of the two standard flaps.
[0014] Furthermore, the diagonal of the pier column is the perpendicular bisector of the pivot axis of the corner flap, and the corner flap is an isosceles trapezoid.
[0015] Furthermore, when the angle of the corner flap is at its minimum, the corner flap and the corner position of the pier column come into contact.
[0016] Furthermore, when the corner flap flips up to its maximum angle, both sides of the corner flap are respectively attached to the overlapping edges of the two standard flaps.
[0017] Furthermore, the maximum angle at which the corner flap flips up is 45°.
[0018] Furthermore, a supplementary sealing plate is detachably connected to the corner flap, which is used to cover the part of the corner gap that is not covered by the corner flap.
[0019] Furthermore, the supplementary sealing plate includes several rectangular steel plates of different sizes, which are interchangeably bolted to the corner flaps.
[0020] This solution also has the following effects:
[0021] 1. When the corner flap flips up at its minimum angle, the free end of the corner flap fits into the corner position of the pier column, ensuring that the corner flap can completely cover the corner gap.
[0022] 2. When the corner flap flips up to its maximum angle, both sides of the corner flap are respectively attached to the overlapping edges of the two standard flaps, ensuring that the corner flap can always lean against the overlapping edges.
[0023] 3. Supplementary sealing plates are used to cover the corner gaps and the parts not covered by the corner flaps, thereby completely covering the corner gaps and preventing objects from falling from heights. Attached Figure Description
[0024] Figure 1 This is a 3D axonometric view of the corner flap after it is hidden when the upward angle is at its minimum in Example 1.
[0025] Figure 2 for Figure 1 Enlarged view of point A;
[0026] Figure 3 for Figure 2 Showing a magnified view of the corner flap;
[0027] Figure 4 When the upward angle is at its maximum, Figure 3 A magnified view of the location;
[0028] Figure 5 This is a schematic diagram showing the relationship between the corner gap and the corner flap coverage. Detailed Implementation
[0029] The following detailed description illustrates the specific implementation method:
[0030] The reference numerals in the accompanying drawings include: pier 1, walkway 2, standard flap 3, corner flap 4, corner plate 5.
[0031] Example 1 is basically as follows Figure 1-Figure 5 As shown: A corner flap for a lifting platform used on high piers, suitable for applications such as... Figure 1 The lifting platform of the square pier 1 shown includes a walkway 2. A flap is rotatably connected to the side of the walkway 2 near the pier 1. The flap and the walkway 2 are hinged together by a hinge, which is existing technology and will not be described in detail. For ease of display, the support structure of the lifting platform in the figure is omitted, and only the walkway 2 and the flap above the support structure are shown. At the corner of the walkway 2, an isosceles right-angled triangle corner plate 5 is horizontally provided. The two right-angled sides of the corner plate 5 are welded to the walkway 2 in two directions, and the length of the right-angled side is equal to the distance of the force wall in the other direction (i.e., the horizontal distance between the walkway 2 and the pier 1).
[0032] like Figure 2 As shown, the flap includes a corner flap 4 and two standard flaps 3. The two standard flaps 3 are rotatably connected to the walkway panels 2 in two adjacent directions. Both standard flaps 3 are rectangular. The side of the two standard flaps 3 near the corner is an overlapping edge, and the overlapping edge is perpendicular to the corresponding walkway panel 2. The corner gap is formed between the corner panel 5 and the two standard flaps 3.
[0033] The corner flap 4 is rotatably connected to the corner plate 5, and the connection method is the same as the existing flap connection method. The diagonal of the pier column 1 is the perpendicular bisector of the rotation axis of the corner flap 4, and the corner flap 4 is an isosceles trapezoid. Figure 3 , Figure 4 As shown, the bottom edge of the corner flap 4 intersects with the overlapping edges of the two standard flaps 3 respectively, and the corner flap 4 leans against the overlapping edges of the two standard flaps 3.
[0034] like Figure 5 As shown, the corner flap 4 is a grid-filled area. When the corner flap 4 flips up at its minimum angle, the corner gap is the area inside the thickened triangle. When the corner flap 4 flips up at its maximum angle, the corner gap is the area inside the dashed trapezoid. The angle range of the corner flap 4 flipping up is 30°-60°.
[0035] To ensure that the corner flap 4 covers as much corner gap as possible, in this scheme, the height of the corner flap 4 is equal to the height of the thickened triangle. That is, when the standard flap 3 is in direct contact with the pier 1, the corner flap 4 flips up 30° and contacts the corner of the pier 1. The two sides of the corner flap 4 fit with the two sides of the dotted trapezoid. That is, when the standard flap 3 can only contact the back rib of the pier 1 template, the corner flap 4 flips up 60° and the two sides of the corner flap 4 fit with the overlapping edges of the two standard flaps 3 respectively.
[0036] Example 2
[0037] Example 2 is based on Example 1: A supplementary sealing plate is bolted to the corner flap 4. The supplementary sealing plate is used to cover the part of the corner gap that is not covered by the corner flap 4. The supplementary sealing plate includes several rectangular steel plates of different sizes and shapes, which are bolted to the corner flap 4 in interchangeable ways.
[0038] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A corner flap for a lifting platform used on high piers, characterized in that: It includes a corner flap and two standard flaps. The two standard flaps are rotatably connected to the walkway panels in two adjacent directions. Both standard flaps are rectangular. The side of each standard flap near the corner is an overlapping edge, and the overlapping edge is perpendicular to the corresponding walkway panel. The corner gap is formed between the two standard flaps. The corner flap is rotatably connected to the corner of the walkway panel. The bottom edge of the corner flap intersects with the overlapping edges of the two standard flaps respectively, and the corner flap leans against the overlapping edges of the two standard flaps.
2. The corner flap of the lifting platform for high piers according to claim 1, characterized in that: The diagonal of the pier is the perpendicular bisector of the pivot axis of the corner flap, and the corner flap is an isosceles trapezoid.
3. The corner flap of a lifting platform for high piers according to claim 2, characterized in that: When the angle of the corner flap is at its minimum, the corner flap and the corner position of the pier column come into contact.
4. A corner flap for a lifting platform for high piers according to claim 3, characterized in that: When the corner flap flips up to its maximum angle, both sides of the corner flap are aligned with the overlapping edges of the two standard flaps.
5. A corner flap for a lifting platform for high piers according to claim 4, characterized in that: The angle at which the corner flip panel flips up ranges from 30° to 60°.
6. A corner flap for a lifting platform for high piers according to claim 5, characterized in that: A supplementary sealing plate is detachably connected to the corner flap, which is used to cover the part of the corner gap that is not covered by the corner flap.
7. A corner flap for a lifting platform for high piers according to claim 6, characterized in that: The supplementary sealing plate consists of several rectangular steel plates of different sizes, which can be replaced with corner flap bolts.