Self-balancing rapid lifting appliance for UHPC bridge deck slab

Abstract

The utility model discloses a UHPC (Ultra High Performance Concrete) bridge deck slab self-balancing rapid hoisting sling, which comprises a horizontally arranged bracket, a lifting appliance, a self-balancing device and a lifting appliance, the connecting assemblies are sequentially arranged on the two sides of the bottom of the support. The two steel wire ropes are connected to the connecting assemblies on the two sides of the bottom of the support in a penetrating mode; and the lifting hooks are slidably and sequentially arranged on the steel wire rope between every two adjacent connecting assemblies.

Description

Technical Field

[0001] This utility model relates to the technical field of rapid hoisting equipment for UHPC bridge decks, and in particular to a self-balancing rapid hoisting tool for UHPC bridge decks. Background Technology

[0002] UHPC bridge deck is a prefabricated component mainly used in bridge engineering. It is produced in a prefabrication plant or on-site and then transported to the bridge construction site for installation and connection.

[0003] Existing UHPC bridge decks are mostly hoisted using steel wire ropes, requiring multiple construction workers to assist during hoisting. This poses a high safety risk. Furthermore, due to the varying lengths of the steel wire ropes, the bridge decks often tilt and have uneven heights at the four corners when lowered onto the beam, affecting the positioning accuracy of the bridge decks. This necessitates multiple construction workers coordinating the positioning of the bridge decks during the lowering process, which is inconvenient and impacts overall construction efficiency and quality. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a self-balancing rapid lifting tool for UHPC bridge decks.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A self-balancing rapid lifting tool for UHPC bridge decks includes:

[0007] The horizontally mounted support frame has its top capable of being attached to lifting equipment.

[0008] Several connecting components are arranged sequentially on both sides of the bottom of the bracket;

[0009] Two steel wire ropes are respectively threaded through and connected to the connecting components on both sides of the bottom of the support;

[0010] Several hooks are slidably and sequentially mounted on the wire rope between two adjacent connecting components.

[0011] Several lifting lugs are arranged sequentially on both sides of the top of the support frame. Each lifting lug has a reserved hole for connection with lifting equipment.

[0012] The connection component includes:

[0013] Two parallel limiting plates, each with pre-drilled bolt holes;

[0014] The sliding rod is horizontally inserted into the bolt holes of the two limiting plates, thus restricting the vertical movement of the wire rope between the sliding rod and the bottom outer wall of the support.

[0015] The hook includes:

[0016] Hook body;

[0017] The mounting hole is located at the top of the hook body and is used for connecting to the wire rope.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model can keep the four corners of the bridge deck in the same plane during the hoisting process of UHPC bridge deck. When the bridge deck is lowered onto the beam, only two workers are needed to complete the positioning and installation. The operation is simple and the construction efficiency is high.

[0020] 2. In this utility model, the UHPC bridge deck is connected to multiple sets of hooks on the lifting device, and the position of the hook corresponds one-to-one with the preset lifting point position of the bridge deck, ensuring quality control during the lifting process.

[0021] 3. This utility model reduces the manpower required for construction, improves construction efficiency, and reduces construction costs.

[0022] 4. The lifting tool described in this utility model is easy to process, and can be manufactured on the construction site after the materials are prepared. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the lifting lug of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the connecting component of this utility model;

[0026] Figure 4 This is a diagram showing the connection relationship between the slide bar and the limiting plate of this utility model;

[0027] Figure 5 This is a structural schematic diagram of the hook of this utility model;

[0028] Reference numerals: 1-bracket; 2-lifting lug; 3-connecting assembly; 4-wire rope; 5-hook; 201-reserved hole; 301-slide rod; 302-limiting plate; 501-hook body; 502-mounting hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0030] like Figures 1 to 5 As shown, a self-balancing rapid lifting device for UHPC bridge decks includes: a horizontally arranged support 1, the top of which can be hooked to a lifting device; several connecting components 3, arranged sequentially on both sides of the bottom of the support 1; two steel wire ropes 4, respectively connected to the connecting components 3 on both sides of the bottom of the support 1; and several hooks 5, slidably arranged sequentially on the steel wire ropes 4 between two adjacent connecting components 3. Several lifting lugs 2 are arranged sequentially on both sides of the top of the support 1, each lug having a pre-drilled hole 201 for connection to the lifting device. The connecting components 3 include: two parallel limiting plates 302, each with a pre-drilled bolt hole; and a sliding rod 301, horizontally inserted into the pre-drilled bolt holes of the two limiting plates 302, thus restricting the vertical movement of the steel wire ropes 4 between the sliding rod 301 and the outer wall of the bottom of the support 1. The hooks 5 include: a hook body 501; and mounting holes 502 located on the top of the hook body 501 for connection to the steel wire ropes 4.

[0031] Among them, such as Figure 1 As shown, the two ends of the wire rope 4 are fixedly connected to the connecting components 3 at both ends of the support.

[0032] The lifting lug 2 is made of 1cm thick steel plate, with a bottom width of 15cm and a height of 15cm. A 2cm diameter pre-reserved hole 201 is provided 7cm down from the top. The lifting lug 2 is fixed to the top surface of the support 1 by welding. The four lifting lugs 2 are symmetrically arranged on the support 1 so that the support 1 can remain horizontal when it is lifted.

[0033] The limiting plate 302 is made of 1cm thick steel plate, with a top width of 15cm and a height of 15cm. A 2cm diameter bolt hole is provided 7cm above the bottom of the limiting plate. The limiting plate 302 is fixed to the bottom surface of the bracket 1 by welding. The sliding rod 301 consists of a 2cm diameter high-strength bolt and a matching nut. After the high-strength bolt passes through the bolt hole on the limiting plate 302 and is bolted to the matching nut, the sliding rod 301 is welded to the limiting plate 302. The distance between the two limiting plates 302 is 3cm.

[0034] Among them, the steel wire rope 4 has a specification of φ14mm and a length of 1.5 times that of the support 1. The steel wire rope 4 is fixedly connected to the connecting components 3 at both ends of the support 1. The steel wire rope 4 is above the high-strength bolts of the other connecting components 3.

[0035] Among them, the hook 5 adopts a ring eye hook with a specification of 0.5 tons. The diameter of the ring eye, i.e. the mounting hole 502, is 16mm. The wire rope 4 passes through the ring eye hook.

[0036] In use, the four lifting lugs 2 on the top of the bracket 1 are connected to the lifting equipment. The operator hangs the lifting hook 5 one by one with the preset lifting points of the UHPC bridge panel. Before the formal lifting, a trial lift is carried out to ensure that the lifting operation is safe and controllable. Then, the operator works with the truck crane to complete the lifting and positioning of the UHPC bridge panel and finally complete the erection of the UHPC bridge panel. After the hook 5 is connected to the preset lifting points of the UHPC bridge panel, the wire rope 4 achieves self-balancing of the UHPC bridge panel by sliding on the slide bar 301.

[0037] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A self-balancing fast hoist sling for UHPC bridge deck slabs, characterized in that, include: A horizontally set support (1) whose top can be attached to a lifting device; Several connecting components (3) are arranged sequentially on both sides of the bottom of the bracket (1); Two steel wire ropes (4) are respectively connected to the connecting components (3) on both sides of the bottom of the bracket (1); Several hooks (5) are slidably and sequentially arranged on the wire rope (4) between two adjacent connecting components (3).

2. The self-balancing quick hoisting spreader for UHPC bridge deck slabs according to claim 1, characterized in that: The bracket (1) has several lifting lugs (2) arranged sequentially on both sides of the top. Each lifting lug (2) has a reserved hole (201) for connecting with the lifting equipment.

3. The self-balancing quick hoisting spreader for UHPC bridge deck slabs according to claim 1, characterized in that, The connection component (3) includes: Two parallel limiting plates (302) are provided, each with a bolt pre-drilled hole; The slide bar (301) is horizontally inserted into the bolt holes of the two limit plates (302), so that the vertical movement range of the wire rope (4) is limited between the slide bar (301) and the bottom outer wall of the bracket (1).

4. The self-balancing quick hoisting spreader for UHPC bridge deck slabs of claim 1, characterized in that, The hook (5) includes: Hook body (501); Mounting hole (502) is provided on the top of hook body (501) for connection with wire rope (4).

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