Prefabricated pavement slab hoisting and leveling assembly

Abstract

A prefabricated pavement slab hoisting and leveling assembly relates to the technical field of prefabricated pavement slab construction, and comprises a pre-embedded sleeve, a leveling screw rod and a hoisting ring, a thread structure is arranged in the embedded sleeve, and an anchoring steel bar is arranged outside the embedded sleeve; the leveling screw is of a threaded structure, the upper end is provided with a through hole, and the top is provided with an inner hexagonal nut. The hanging ring is a shackle, and a transverse pin of the shackle can penetrate through a through hole in the upper portion of the leveling screw. The lifting ring and the leveling screw rod are flexibly assembled, the lifting ring for lifting the prefabricated pavement slab and the leveling for mounting the prefabricated pavement slab share one screw rod and one embedded sleeve, the mounting efficiency and the mounting quality of the prefabricated pavement slab can be effectively improved, and the manufacturing cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated pavement slab construction technical field, concretely relates to a prefabricated pavement slab hoisting and leveling assembly. BACKGROUND

[0002] In the traditional prefabricated pavement slab construction, the hoisting ring and the leveling device are designed in a split type, and have the following defects: the hoisting sleeve and the leveling sleeve need to be embedded respectively, the material cost is increased, the concrete structure strength is reduced due to multiple embedding, and the hoisting hole needs to be additionally blocked after hoisting, so that the process is increased. Therefore, a new assembly needs to be developed to solve the above technical problems. SUMMARY

[0003] The utility model solves the technical problems, and provides a prefabricated pavement slab hoisting and leveling assembly, wherein the hoisting ring is assembled on the leveling bolt, an internally threaded embedded sleeve is shared, the installation efficiency and the installation quality of the prefabricated pavement slab can be effectively improved, and the construction cost is saved.

[0004] The utility model adopts the technical scheme that a prefabricated pavement slab hoisting and leveling assembly, including embedded sleeve, leveling screw rod and lifting ring, the embedded sleeve inside is equipped with thread structure, outside is equipped with anchor steel bar, the leveling screw rod is thread structure, is equipped with through -hole in the upper end, and the top is equipped with internal hexagonal nut, the lifting ring is unhooking, the cross pin of unhooking can pass through the through -hole of the upper end of leveling screw rod.

[0005] Further, the embedded sleeve is made of two sections of steel pipes, a straight thread sleeve is sleeved into the steel pipe and welded and fixed in the middle section, and the outer diameter of the straight thread sleeve is smaller than the inner diameter of the steel pipe.

[0006] Further, anchor steel bars are welded on both sides of the middle section of the straight thread sleeve, and can be welded and fixed with the embedded steel bars of the prefabricated pavement slab.

[0007] Further, the top end of the leveling screw rod is welded and fixed with the internal hexagonal nut.

[0008] Further, the outer diameter of the internal hexagonal nut is smaller than the inner diameter of the upper steel pipe of the embedded sleeve.

[0009] Further, the outer diameter of the cross pin of the unhooking is smaller than the inner diameter of the through hole in the upper end of the leveling screw rod.

[0010] Further, the length of the embedded sleeve is equal to the thickness of the prefabricated pavement slab, and the embedded sleeve and the prefabricated pavement slab are vertically penetrated.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The lifting ring and the leveling screw rod are flexibly assembled, the lifting ring for hoisting the prefabricated pavement slab and the leveling for installing the prefabricated pavement slab share a screw rod and a pre-buried sleeve, cost is saved and efficiency is improved;

[0013] The inner hexagonal nut at the top end of the leveling screw rod has an outer diameter smaller than the inner diameter of the pre-buried sleeve, and the elevation adjustment range of the prefabricated pavement slab is increased;

[0014] Through the internal thread structure, the leveling screw rod can be directly screwed into the pre-buried sleeve without additional fixing devices or adhesives, and the installation is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic view of hoisting of the embodiment of the utility model;

[0016] Fig. 2 It is a schematic view of elevation leveling of the embodiment of the utility model;

[0017] Fig. 3 It is a structural schematic view of the pre-buried sleeve of the embodiment of the utility model;

[0018] Fig. 4 It is a schematic view of the combination of the lifting ring and the leveling screw rod of the embodiment of the utility model;

[0019] Marked in the drawing: 1, pre-buried sleeve, 11, steel pipe, 12, straight thread sleeve, 13, anchoring steel bar, 21, leveling screw rod, 22, inner hexagonal nut, 23, through hole, 3, lifting ring, 31, pin hole, 32, cross pin, 4, prefabricated pavement slab, 5, concrete base. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model is clearly and completely described below in combination with the drawings and the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Refer to Figs. 1 to 4 A prefabricated pavement slab hoisting and leveling assembly, comprising a pre-buried sleeve 1, a leveling screw rod 21 and a lifting ring 3; the pre-buried sleeve 1 is internally provided with a thread structure and externally provided with an anchoring steel bar 13; the leveling screw rod 21 is of a thread structure, is provided with a through hole 23 at the upper end and is provided with an inner hexagonal nut 22 at the top; the lifting ring 3 is a shackle, and the cross pin 32 of the shackle can pass through the through hole 23 at the upper end of the leveling screw rod 21.

[0022] In the embodiment, the pre-buried sleeve 1 is made of two steel pipes 11, a straight thread sleeve 12 is sleeved into the steel pipe 11 in the middle section and is welded and fixed, and the outer diameter of the straight thread sleeve 12 is smaller than the inner diameter of the steel pipe 11.

[0023] In the embodiment, the middle section of the straight thread sleeve 12 is welded with anchor steel bars 13 on both sides, which can be welded and fixed with the embedded steel bars of the precast pavement slab 4.

[0024] In the embodiment, the top end of the leveling screw rod 21 is welded and fixed with the inner hex nut 22.

[0025] In the embodiment, the outer diameter of the inner hex nut 22 is smaller than the inner diameter of the upper steel pipe 11 of the embedded sleeve 1.

[0026] In the embodiment, the outer diameter of the cross pin 32 of the shackle is smaller than the inner diameter of the upper end through hole 23 of the leveling screw rod 21.

[0027] In the embodiment, the length of the embedded sleeve 1 is equal to the thickness of the precast pavement slab 4, and the embedded sleeve 1 vertically penetrates through the precast pavement slab 4.

[0028] Working principle: the lifting ring 3 is assembled on the leveling screw rod 21 when the precast pavement slab 4 needs to be hoisted, and the lifting ring 3 is removed after the precast pavement slab 4 is hoisted and positioned, the top end inner hex nut 22 of the leveling screw rod 21 is screwed to finely adjust the elevation of the precast pavement slab 4, and the bottom end of the leveling screw rod 21 is supported on the concrete base 5.

[0029] Finally, it should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A precast road panel hoisting and leveling assembly, characterized in that: It includes a pre-embedded sleeve, a leveling screw, and a lifting ring; the pre-embedded sleeve has a threaded structure inside and an anchoring steel bar on the outside; the leveling screw has a threaded structure, a through hole at the upper end, and an internal hexagonal nut at the top; the lifting ring is a shackle, and the cross pin of the shackle can pass through the through hole at the upper end of the leveling screw.

2. The precast road panel hoisting and leveling assembly according to claim 1, characterized in that: The pre-embedded sleeve is made of two sections of steel pipe. The middle section is fitted into the steel pipe with a straight threaded sleeve and welded in place. The outer diameter of the straight threaded sleeve is smaller than the inner diameter of the steel pipe.

3. The precast road panel hoisting and leveling assembly according to claim 2, characterized in that: Anchor steel bars are welded to both sides of the middle section of the straight threaded sleeve, which can be welded and fixed to the pre-embedded steel bars of the precast road panel.

4. The precast road panel hoisting and leveling assembly according to claim 1, 2, or 3, characterized in that: The top end of the leveling screw is welded and fixed to the internal hexagonal nut.

5. The precast road panel hoisting and leveling assembly according to claim 2, characterized in that: The outer diameter of the internal hexagonal nut is smaller than the inner diameter of the upper steel pipe of the pre-embedded sleeve.

6. The precast road panel hoisting and leveling assembly according to claim 1, 2, or 3, characterized in that: The outer diameter of the cross pin of the shackle is smaller than the inner diameter of the through hole at the upper end of the leveling screw.

7. The precast road panel hoisting and leveling assembly according to claim 1, 2, or 3, characterized in that: The length of the embedded sleeve is equal to the thickness of the precast road panel, and the embedded sleeve is perpendicular to the precast road panel.

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