An adjustable staircase hoisting and flipping fixture

Abstract

This utility model discloses an adjustable stair hoisting and flipping fixture, comprising two parallel flipping support ends and a telescopic main beam connecting the two flipping support ends, forming a load-bearing frame; the outer side of the short side of the flipping support end is provided with a large arc surface; an adjustable width sliding component is installed on the long side of the flipping support end; and lifting lugs are provided on the flipping support end. This utility model features an adjustable size structure, including a width-adjustable sliding plate and a telescopic main beam, which allows for arbitrary adjustment of the fixture's width and length through a sliding groove and a fitted prism design; it is adaptable to different stair specifications, improving the fixture's versatility, reducing equipment changeover time, and increasing production efficiency; at the same time, the large arc surface of the flipping support end optimizes the support smoothness during the flipping process, reduces the risk of stair damage and cracking, and ensures the quality of prefabricated stair production.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated staircase technology, specifically an adjustable staircase hoisting and flipping fixture. Background Technology

[0002] In the process of industrialized construction, prefabricated stairs are widely used due to their high degree of standardization and fast construction efficiency. Currently, the industry generally uses flat mold production to manufacture prefabricated stairs, but the following technical challenges remain in the hoisting and turning process after demolding:

[0003] 1. Traditional hoisting tools are mostly fixed-size structures, which cannot be adapted to stair components of different specifications; during operation, special tools need to be changed frequently, resulting in complicated equipment scheduling and low efficiency in process connection.

[0004] 2. During the flipping process, the stairs are in rigid contact and lack a buffer transition. The corners of the stairs are prone to cracking, chipping, and other structural damage due to local stress concentration, which directly affects the finished product qualification rate.

[0005] 3. Existing technology relies on pre-embedded hanging nails on the side of the staircase for fixation, which not only increases the cost of purchasing pre-embedded parts, but also requires subsequent filling and repair of the hanging nail holes, resulting in a complicated process and increased overall costs.

[0006] Therefore, although existing tooling technology can achieve basic hoisting functions, the aforementioned defects restrict the mass production efficiency and quality stability of prefabricated stairs. Utility Model Content

[0007] The main purpose of this utility model is to provide an adjustable stair hoisting and flipping fixture that is not easily damaged by prefabricated stairs.

[0008] The adjustable stair hoisting and flipping fixture provided by this utility model includes two parallel flipping support ends and a telescopic main beam connecting the two flipping support ends, forming a load-bearing frame; the outer side of the short side of the flipping support end is provided with a large arc surface; an adjustable sliding component is installed on the long side of the flipping support end; and a lifting lug is provided on the flipping support end.

[0009] In one embodiment of the above-mentioned tooling, the main beams are in two sets, and the two sets of main beams are connected by a crossbeam.

[0010] In one embodiment of the above-mentioned tooling, the flipping support end is an L-shaped hollow box with a vertical connecting panel with an elongated hole on the inner side of its short side.

[0011] In one embodiment of the above-mentioned tooling, a groove is provided above the long side of the flipping support end along the length direction.

[0012] In one embodiment of the above-mentioned tooling, the sliding component includes a rectangular slide plate for width adjustment, with a U-shaped folded edge on one side of the slide plate. The folded edge is slidably connected to a slot on the long side of the flip support end via a screw.

[0013] In one embodiment of the above-mentioned tooling, the rectangular plate area of ​​the width adjusting slide plate has an elongated hole, which is opposite to the connecting panel of the flip support end. The adjusting screw passes through both and is limited by the locking nut.

[0014] In one embodiment of the above-mentioned tooling, the main beam is composed of two interlocking elongated prisms, each prism having a corresponding groove, and the length is adjusted and fixed by a screw and nut passing through the groove.

[0015] In one embodiment of the above-mentioned tooling, the lifting lug is a plate-shaped structure with a circular lifting hole.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. An adjustable size structure is set up, including a width-adjustable slide plate and a telescopic main beam. The width and length of the tooling can be adjusted arbitrarily through the design of the slide groove and the sleeve prism; it can adapt to different specifications of stairs, improve the versatility of the tooling, reduce equipment change time, and improve production efficiency.

[0018] 2. Set a large arc surface at the flip support end to optimize the smoothness of the support during the flipping process, reduce the risk of damage and cracking of the stairs, and ensure the quality of prefabricated stairs production;

[0019] 3. The prefabricated staircase is fixed by using adjusting screws that pass through the connecting panel and the width adjusting slide, eliminating the need for the original side hanging nails; this saves on the cost of pre-embedded hanging nails and the amount of work required for later filling, simplifies the process, and improves efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an isometric structure according to an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A side view structural diagram.

[0022] Figure 3 for Figure 1 A top-view structural diagram.

[0023] Figure 4 This is a schematic diagram of the usage state of this embodiment. Detailed Implementation

[0024] The relevant technical solutions will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Combination Figure 1 , Figure 2 and Figure 3 As can be seen, the adjustable stair hoisting and flipping fixture disclosed in this embodiment includes a flipping support end 1, a width adjustment slide plate 2, a main beam 3, a crossbeam 4, and a lifting lug 5.

[0026] The flip support end 1 is an approximately L-shaped hollow box with a large circular arc surface on the outer side of its short side, which can optimize the smoothness of the prefabricated staircase flipping and avoid damage to the staircase; a vertical connecting panel 6 is set on the inner side of the short side of the flip support end, and an elongated hole is opened on the connecting panel.

[0027] A groove is cut along the length direction above the long side of the flip support end 1.

[0028] The width-adjustable sliding plate 2 is a rectangular plate with a U-shaped folded edge on one side. The folded edge opening at the bottom can slide along the groove on the long side of the flip support end 1 through screws and nuts, and can be fixed when needed, realizing the adjustment and adaptation of the width of the prefabricated staircase.

[0029] The rectangular plate of the width adjustment slide 2 has an elongated hole, which is opposite to the connecting panel of the flip support end 1. The adjustment screw 7 passes through the width adjustment slide and the connecting panel, and is limited by the locking nuts on both sides.

[0030] Two flip support ends 1 are set in parallel, and two sets of main beams 3 connect the two to form the longitudinal load-bearing skeleton of the tooling, providing a stable support benchmark.

[0031] The main beam 3 consists of two long, narrow prisms, one large and one small, nested together. Corresponding grooves are cut into the prisms, and screws pass through them and can be used to limit their position with nuts.

[0032] In another embodiment, the groove between the two columns of the main beam can be replaced with a multi-hole position for length adjustment.

[0033] A crossbeam 4 is provided between the two sets of main beams 3 to connect them and enhance the overall structural strength of the tooling.

[0034] Lifting lugs 5 are provided on the outer side of the long side and the side of the flip support end 1. The lifting lugs are plate-shaped structures with circular lifting holes for the lifting claws to attach and lift.

[0035] Precast stairs require two PVC sleeves to be pre-embedded in the width direction during production.

[0036] like Figure 4 As shown, the specific steps for hoisting and flipping prefabricated stairs using this tool are as follows:

[0037] 1. Adjust the width and length of the fixtures according to the actual dimensions of the prefabricated staircase to be hoisted:

[0038] Width adjustment: Loosen the nut on the bottom edge of the width adjustment slide plate, slide it along the slot on the long side of the flip support end to the desired position, and then tighten the nut; Length adjustment: Loosen the locking nut of the main beam, adjust the extension length of the two sleeve prisms through the slide groove, and tighten the nut after positioning; Ensure that the two sets of flip support ends remain parallel and the crossbeam connection is stable.

[0039] 2. Lay flexible materials, such as rubber strips or foam pads, on the contact surface between the workpiece and the stairs.

[0040] 3. Vertically hoist the prefabricated staircase into the fixture, ensuring that the two PVC sleeves embedded in the width direction of the staircase are aligned with the elongated holes on the width adjustment slide.

[0041] 4. Tighten the U-shaped nut on the width adjustment slide to fix the width direction; pass the adjustment screw through the elongated hole in the connecting panel, the PVC sleeve of the staircase, and the elongated hole in the width adjustment slide in sequence, and lock it with lock nuts at both ends of the screw to fix the thickness direction of the staircase.

[0042] 5. Hook the crane hook into the lifting hole of the top lifting lug of the flipping support end and slowly lift the tooling; during the flipping process, the large arc surface on the outer side of the short side of the flipping support end provides smooth support to avoid damage and cracking of the staircase.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable staircase hoisting and flipping fixture, characterized in that: It includes two parallel rotating support ends and a telescopic main beam connecting the two rotating support ends, forming a load-bearing skeleton; the outer side of the short side of the rotating support end is provided with a large arc surface; an adjustable width sliding component is installed on the long side of the rotating support end; and lifting lugs are provided on the rotating support end.

2. The adjustable staircase hoisting and flipping fixture as described in claim 1, characterized in that: The main beam consists of two sets, which are connected by a crossbeam.

3. The adjustable staircase hoisting and flipping fixture as described in claim 1, characterized in that: The flip support end is an L-shaped hollow box with a vertical connecting panel with an elongated hole on the inner side of its short side.

4. The adjustable staircase hoisting and flipping fixture as described in claim 1, characterized in that: A groove is provided above the long side of the flip support end along the length direction.

5. The adjustable staircase hoisting and flipping fixture as described in claim 4, characterized in that: The sliding assembly includes a rectangular slide plate for width adjustment, with a U-shaped fold on one side of the slide plate. This fold is slidably connected to a slot on the long side of the flip support end via a screw.

6. The adjustable staircase hoisting and flipping fixture as described in claim 5, characterized in that: The rectangular plate area of ​​the rectangular slide has an elongated hole, which is set opposite to the connecting panel of the flip support end. The adjusting screw passes through both and is limited by the locking nut.

7. The adjustable staircase hoisting and flipping fixture as described in claim 1, characterized in that: The main beam consists of two interlocking elongated prisms, each with a corresponding groove. The length is adjusted and fixed by a screw and nut passing through the groove.

8. The adjustable staircase hoisting and flipping fixture as described in claim 1, characterized in that: The lifting lug is a plate-shaped structure with a circular lifting hole.

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