Prefabricated stair hoisting device
By combining the positioning frame and positioning rod, the problems of unsafe and aesthetically damaging prefabricated staircase hoisting are solved, achieving a safe, low-cost, and easy-to-operate hoisting effect.
Patent Information
- Application Number
- CN202520594816.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-01
AI Technical Summary
The existing prefabricated staircase hoisting process has problems such as unsafe hoisting and aesthetic impact, especially due to the potential dangers and aesthetic damage caused by the use of embedded parts.
The system employs an integrated hoisting device consisting of two sets of positioning frames and positioning rods. Through the combined structure of the positioning frames and positioning rods, nuts are used to fix the system onto the prefabricated stair steps, avoiding the use of embedded parts and ensuring a safe and stable hoisting process.
This method enables safe and stable hoisting of prefabricated stairs, avoids the use of embedded parts, reduces costs, and maintains the aesthetics and ease of operation of the hoisting process.
Smart Images
Figure CN223906353U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hoist device technical field, concretely relates to a prefabricated stair hoist device. BACKGROUND
[0002] In recent years, the application of prefabricated stairs is more and more extensive, and the prefabricated stairs are produced by fixed moulding in a factory once, then are transported to the construction site for hoisting, and the hoisting is generally carried out by large tower crane, and the lifting point is a previously embedded nut or lifting ring, which has two defects: on the one hand, the nut or lifting ring needs to be repaired after hoisting, affecting the appearance, and on the other hand, due to the large weight of the prefabricated stairs and the high hoisting height, once the lifting point fails, it has great danger, therefore, how to ensure safe hoisting and not affect the surface of the stairs is a problem to be solved in the field. SUMMARY
[0003] To solve the above problems, the utility model discloses a prefabricated stair hoist device, which does not need to set a pre-embedded part in the prefabricated stair, can safely and stably lift the prefabricated stair through overall hoisting, has simple and practical structure, is convenient to operate, can be repeatedly used and is low in cost.
[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0005] A prefabricated stair hoist device, comprising two sets of positioning frames and positioning rods, the positioning frame is a reverse "N" type structure composed of an upper horizontal plate, a left side plate and a right side plate, mounting holes are arranged below the left side plate and the right side plate, the positioning rods pass through the mounting holes, and the two ends of the positioning rods are fixed through nuts; a vertical limiting plate is connected to one side of the upper horizontal plate, and an ear is arranged on the upper surface of the upper horizontal plate.
[0006] As an improvement of the utility model, the limiting plate is arranged on the side close to the lower inclined surface of the stair.
[0007] As an improvement of the utility model, the two sets of positioning frames are installed on different stair steps of the prefabricated stair.
[0008] As an improvement of the utility model, the number of the ears is 1-3.
[0009] As an improvement of the utility model, the ear is provided with a reinforcing rib.
[0010] The prefabricated stair hoist device has the advantages that:
[0011] The prefabricated stair hoist device does not need to set a pre-embedded part in the prefabricated stair, can safely and stably lift the prefabricated stair through overall hoisting, has simple and practical structure, is convenient to operate, can be repeatedly used and is low in cost. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the installation schematic view of the utility model.
[0013] Figure 2 It is the installation schematic view of the utility model.
[0014] List of figure mark:
[0015] 1, positioning frame, 2, positioning rod, 3, upper horizontal plate, 4, left side plate, 5, right side plate, 6, mounting hole, 7, nut, 8, limiting plate, 9, lifting lug, 10, reinforcing rib. Specific implementation
[0016] The utility model is further illustrated below in combination with the drawings and specific implementation, and it should be understood that the following specific implementation is only used for illustrating the utility model and is not used for limiting the scope of the utility model.
[0017] As shown in the figure, a prefabricated stair hoisting device described in the utility model, including two sets of positioning frame 1 and positioning rod 2, the positioning frame 1 is by the upper horizontal plate 3, left side plate 4, right side plate 5 is constituted as inverted " N " type structure, the left side plate 4, right side plate 5 below is equipped with mounting hole 6, the positioning rod 2 passes through mounting hole 6, and the positioning rod 2 both ends are fixed through nut 7, the upper horizontal plate 3 one side is connected with vertical limiting plate 8, and the upper horizontal plate 3 upper plane is equipped with lifting lug 9.
[0018] When installing, loosen nut 7, remove positioning rod 2, put positioning frame 1 on the stair of a step, place upper horizontal plate 3 on the step surface, and left side plate 4 and right side plate 5 are on both sides of the step width, and limiting plate 8 is attached to the side surface of the upper step, then fix rod 2 after being in place, and nut 7 is fixed, and hoisting can be carried out.
[0019] The utility model does not need to set pre-embedded parts in the prefabricated stair, and also does not need to open holes in the lower edge of the stair, but is hoisted as a whole, and two positioning rods 2 and limiting plates 8 are used as force components, to ensure that hoisting is safe and stable, and the stair itself is not damaged.
[0020] Two sets of positioning frame 1 described in the utility model are installed on different stair steps of the prefabricated stair, as shown in the figure, Figure 2 Positioning rod 2 is horizontally topped on the lower inclined surface of the stair, and limiting plate 8 is attached to the side surface of the upper step (limiting plate 8 is arranged on the side close to the lower inclined surface of the stair, that is, limiting plate 8 is on the side close to the upper step), and positioning frame 1 is moved to the left and upward direction under force during hoisting, but the upward possibility is limited by positioning rod 2, and the left possibility is limited by limiting plate 8, so there is no sliding during hoisting, and it is safe and stable.
[0021] The number of the lifting lug 9 can be one, which is located at the middle, or two or three, which is averagely arranged, so as to share the pressure, and the reinforcing rib 10 can also be arranged at the lifting lug 9, so as to prolong the service life.
[0022] It should be noted that the above content only illustrates the technical idea of the utility model, and cannot limit the protection scope of the utility model, and for ordinary skilled persons in the technical field, some improvements and decorations can be made without departing from the principle of the utility model, and the improvements and decorations all fall within the protection scope of the utility model claim.
Claims
1. A pre-fabricated stair hoisting device, characterized by: Including two sets of positioning frame (1) and positioning rod (2), the positioning frame (1) is by upper horizontal plate (3), left side plate (4), right side plate (5) constitute the inverted "N" type structure, the left side plate (4), right side plate (5) below is equipped with mounting hole (6), the positioning rod (2) passes through mounting hole (6), and the both ends of positioning rod (2) are fixed through nut (7), one side of the upper horizontal plate (3) is connected with vertical limiting plate (8), and the upper horizontal plate (3) upper plane is equipped with lifting lug (9).
2. A pre-fabricated stair hoisting device according to claim 1, characterized in that: The limiting plate (8) is arranged on the side close to the lower slope of the stair.
3. A pre-fabricated stair hoisting device according to claim 1, characterized in that: The two sets of positioning frame (1) are installed on different stair steps of the prefabricated stair.
4. A pre-fabricated stair hoisting device according to claim 1, characterized in that: The number of the lifting lug (9) is 1-3.
5. A pre-fabricated stair hoisting arrangement according to claim 4, characterised in that: The reinforcing rib (10) is arranged at the lifting lug (9).