CN214243483U

CN214243483U - Be used for supplementary hoist device of cast-in-place roof beam stretch-draw

Info

Publication number: CN214243483U
Application number: CN202023020005.0U
Authority: CN
Inventors: 陈煌斌; 张志强; 赖如波; 赖轩明
Original assignee: CSCEC Strait Construction and Development Co Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-21
Anticipated expiration: 2030-12-15

Abstract

The utility model relates to a stretch-draw auxiliary hoisting device for a cast-in-place beam, which comprises a support frame and hoisting equipment; the support frame comprises 4 vertical upright posts and eight horizontally arranged cross beams; the eight cross beams are divided into an upper group and a lower group and are respectively fixed with the upper end and the lower part of the upright post; the upright posts and the cross beams are erected and fixed to form a rectangular framework; the mutually lapped upright columns and the cross beams are fixed by fasteners; the hoisting equipment comprises two electric hoisting hoists; the hoisting hoists are respectively hung in the middle positions of the cross beams above the two sides of the support frame through steel ropes; a hook is arranged below the hoist block; the hook is connected with the hoist through a steel rope; the position of the hook is adjusted by the hoisting block through retracting the steel rope. The device passes through electric hoist and adjusts the jack height, can adjust the jack position on a straight line, reduces required constructor quantity, improves security and efficiency of construction.

Description

Be used for supplementary hoist device of cast-in-place roof beam stretch-draw

Technical Field

The utility model relates to a be used for supplementary hoist device of cast-in-place roof beam stretch-draw belongs to architectural equipment technical field.

Background

For a prestressed concrete girder bridge, a tension control technique of prestressed concrete is a very important technique for the entire prestressed concrete. When the cast-in-place beam bridge is prestressed and tensioned, a jack and an electric oil pump (tensioning oil pump) for tensioning are needed, and the steel strand force in the anchoring part is increased through work to endow a prestress numerical value. In construction, a jack is often required to be repeatedly installed and disassembled at the tensioning end of the cast-in-place beam. The existing solutions are of two types, one is that constructors mount and dismount jacks, and because the weight of the tensioning jack is heavy, a plurality of workers are required to complete mounting together, so that the construction efficiency is low, and potential safety hazards exist; the other method is to finish hoisting by using a crane, and has the defects of small application range and high construction cost because the hoisting can be finished only in the vertical direction.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model provides a be used for supplementary hoist device of cast-in-place roof beam stretch-draw, the device passes through electric hoist and adjusts the jack height, can adjust the jack position on a straight line.

An auxiliary hoisting device for tensioning a cast-in-place beam comprises a support frame and hoisting equipment; the support frame comprises 4 vertical upright posts and eight horizontally arranged cross beams; the eight cross beams are divided into an upper group and a lower group and are respectively fixed with the upper end and the lower part of the upright post; the upright posts and the cross beams are erected and fixed to form a rectangular framework; the mutually lapped upright columns and the cross beam are fixed by fasteners; the hoisting equipment comprises two electric hoisting hoists; the hoisting hoists are respectively hung in the middle positions of the cross beams above the two sides of the support frame through steel ropes; a hook is arranged below the hoisting block; the hook is connected with the hoist through a steel rope; the hoisting block adjusts the position of the hook through retracting the steel rope.

Furthermore, a reinforcing pipe is transversely arranged in the middle above the supporting frame; the reinforcing pipe and the cross beam are fixed through a fastener.

Further, the fastener is a bowl buckle type fastener.

The utility model discloses following beneficial effect has:

1. the auxiliary hoisting device can longitudinally adjust the height of the tensioning jack suspended between the two hoisting hoists

2. The auxiliary hoisting device can transversely adjust the transverse position of the tensioning jack hung between the two hoisting hoists

3. When the auxiliary hoisting device is used, only one operator is needed, so that the labor is saved, and the safety is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a top view of the present invention.

The reference numbers in the figures denote:

1. a support frame; 2. a column; 3. a cross beam; 4. hoisting a hoist; 5. hooking; 6. a fastener; 7. and (7) reinforcing the pipe.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-3, an auxiliary hoisting device for cast-in-place beam tensioning comprises a support frame 1 and hoisting equipment; the support frame 1 comprises 4 vertical upright posts 2 and eight horizontally arranged cross beams 3, and the upright posts 2 and the cross beams 3 are the same in material and structure and can be exchanged for use; the eight cross beams 3 are divided into an upper group and a lower group and are respectively fixed with the upper end and the lower part of the upright post 2; the upright posts 2 and the cross beams 3 are erected and fixed to form a rectangular framework; the vertical column 2 and the cross beam 3 which are mutually overlapped are fixed by a fastener 6; the hoisting equipment comprises two electric hoisting hoists 4; the hoisting hoists 4 are respectively hung in the middle positions of the cross beams 3 above the two sides of the support frame 1 through steel ropes; a hook 5 is arranged below the hoisting block 4; the hook 5 is connected with the hoist 4 through a steel rope; the hoist 4 adjusts the position of the hook 5 through retracting a steel rope.

In order to prevent the support frame 1 from deforming due to stress, the support frame 1 is reinforced, and a reinforcing pipe 7 is transversely arranged in the middle above the support frame 1; the reinforcing pipe 7 and the cross beam 3 are fixed through a fastener 6.

Fastener 6 is the buckle formula fastener of bowl, can be better play fixed effect.

Referring to fig. 1-3, the working principle of the present invention is as follows:

when the auxiliary hoisting device is used, the two hooks 5 jointly hang a tensioning jack, and when the two hoisting hoists 4 retract the hooks 5 at the same time, the tensioning jack is pulled up and the height of the tensioning jack rises; when the two hoisting hoists 4 simultaneously release the hooks 5, the tensioning jack is put down, and the height is lowered; when one hoist 4 withdraws the hook 5 and the other hoist 4 releases the hook 5, the tensioning jack moves towards the hoist 4 withdrawing the hook 5.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same principle as the protection scope of the present invention.

Claims

1. The utility model provides a be used for supplementary hoist device of cast-in-place roof beam stretch-draw which characterized in that: comprises a support frame (1) and hoisting equipment; the support frame (1) comprises 4 vertical upright posts (2) and eight horizontally arranged cross beams (3); the eight cross beams (3) are divided into an upper group and a lower group and are respectively fixed with the upper end and the lower part of the upright post (2); the upright posts (2) and the cross beams (3) are erected and fixed to form a rectangular framework; the vertical columns (2) and the cross beams (3) which are mutually overlapped are fixed by fasteners (6); the hoisting equipment comprises two electric hoisting hoists (4); the hoisting hoists (4) are respectively hung in the middle of the cross beam (3) above the two sides of the support frame (1) through steel ropes; a hook (5) is arranged below the hoisting block (4); the hook (5) is connected with the hoisting block (4) through a steel rope; the hoisting block (4) adjusts the position of the hook (5) through retracting and releasing the steel rope.

2. A cast-in-place beam tensioning auxiliary hoisting device according to claim 1, characterized in that: a reinforcing pipe (7) is transversely arranged in the middle of the upper part of the support frame (1); the reinforcing pipe (7) and the cross beam (3) are fixed through a fastener (6).

3. A cast-in-place beam tensioning auxiliary hoisting device according to claim 1 or 2, characterized in that: the fastener (6) is a bowl buckle type fastener.