CN212945143U

CN212945143U - Be used for bridge prefabricated hollow slab hinge joint department bar straightening device

Info

Publication number: CN212945143U
Application number: CN202021817932.2U
Authority: CN
Inventors: 李翔; 李晋; 冯泽欢; 管泽斌; 崔新壮
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-13
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a be used for prefabricated hollow plate hinge joint department bar straightener of bridge, including bearing box, stand, entablature, bottom end rail, push down part and alignment part, be equipped with two stands on the bearing box, entablature and bottom end rail respectively with two stand sliding connection, push down the part and locate between entablature and the bottom end rail, the bottom of bottom end rail is equipped with and passes the power part, pass power part and alignment part swing joint, alignment part is put with bearing box activity cover. The device is low in cost and high in practicability, and can efficiently, labor-saving and accurately enable the horizontal angle of the steel bar to meet the design and standard requirements while reducing the labor intensity.

Description

Be used for bridge prefabricated hollow slab hinge joint department bar straightening device

Technical Field

The utility model belongs to the technical field of bridge engineering and specifically relates to a be used for prefabricated hollow slab hinge joint department bar straightener of bridge.

Background

The bridge is generally a building erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through. Before the prefabricated hollow slab hinge joint of the bridge is cast, the U-shaped steel bar extending out of the hinge joint of the hollow slab needs to be straightened. This U type reinforcing bar is because of receiving plate girder working face width and degree of depth influence, can't adopt the modernization main equipment, and the steel pipe that purely adopts the manual work to stretch into strikes the alignment, and the process is wasted time and energy, and efficiency is lower, seriously influences the construction progress, and the alignment degree also can't satisfy standard and designing requirement simultaneously, also causes certain harm to U type reinforcing bar knocking the in-process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for prefabricated hollow slab hinge joint department bar straightener of bridge, the device low cost, the practicality is high, when alleviateing intensity of labour, can make the horizontal angle of reinforcing bar reach design and standard requirement high-efficiently, laborsaving, accurately.

The utility model provides a technical scheme that its technical problem adopted is: a device for aligning reinforcing bar of bridge prefabricated hollow plate hinge joint department, including bearing box, stand, entablature, bottom end rail, push down part and alignment part, be equipped with two stands on the bearing box, entablature and bottom end rail respectively with two stand sliding connection, push down the part and locate between entablature and the bottom end rail, the bottom of bottom end rail is equipped with and passes power part, pass power part and alignment part swing joint, alignment part and bearing box activity cover are put.

Furthermore, the force transmission component comprises a bearing cylinder and a first force transmission shaft, the upper end of the bearing cylinder is connected with the bottom surface of the lower cross beam, the upper end of the first force transmission shaft is connected with the lower end of the bearing cylinder, and the lower end of the first force transmission shaft is provided with a connecting sleeve connected with the straightening component.

Furthermore, a bearing disc for bearing the pressing component is arranged on the lower cross beam.

Furthermore, the bottom surface of the upper beam is provided with a concave bearing platform for fixing the pressing component.

Further, the straightening component comprises a second force transmission shaft and a straightening gripper, and the lower end of the second force transmission shaft is provided with the straightening gripper.

Furthermore, the bottom surface of the straightening gripper is in an inverted U shape, and two ends of the bottom surface of the straightening gripper are transited to the plane from the inclined plane to the center.

Furthermore, the pressing component is a jack, the jack is arranged on the lower cross beam, and the upper end of the jack is in contact with the bottom surface of the upper cross beam.

Furthermore, a through hole for inserting the straightening component is formed in the center of the bearing box, and self-locking wheels convenient to move are respectively arranged at four corners of the bottom surface of the bearing box.

The utility model has the advantages that:

1. the utility model discloses a straightening device is less to the harm of U shaped steel muscle at the alignment in-process, effectively strengthens the transverse connection of hollow core slab, avoids the too big phenomenon of veneer atress simultaneously, has promoted hollow slab bridge superstructure's horizontal whole atress performance, has ensured the security of hollow slab structure.

2. Because the bottom surface of the straightening gripper is U-shaped, the contact surface of the straightening gripper and the straightening reinforcing steel bar is increased, the reinforcing steel bar can be forced in the straightening process, and the reinforcing steel bar cannot be damaged due to slipping. Manpower is liberated to a great extent by arranging the jack; the method has the advantages of high efficiency, labor saving, construction cost reduction and engineering efficiency improvement.

Drawings

Fig. 1 is a schematic view of the vertical surface of the device of the present invention.

Fig. 2 is a schematic plan view of the device of the present invention.

Fig. 3 is a schematic side view of the device of the present invention.

Fig. 4 is a schematic view of the field operation of the device of the present invention.

In the figure:

1-upright column, 2-upper beam, 3-lower beam, 4-positioning bolt, 5-concave bearing platform, 6-jack, 7-bearing disc, 8-bearing cylinder, 9-transmission shaft I, 10-connecting sleeve, 11-transmission shaft II, 12-bearing box, 13-through hole, 14-self-locking wheel, 15-straightening handle, 16-U-shaped steel bar and 17-hollow plate beam.

Detailed Description

The following detailed description is made on the device for straightening the steel bar at the hinge joint of the prefabricated hollow slab of the bridge according to the present invention with reference to the attached drawings.

As shown in fig. 1 to 4, the utility model discloses a be used for bridge prefabrication hollow plate hinge joint department bar straightener, including bearing box 12, stand 1, entablature 2, bottom end rail 3, push down part and alignment part, be equipped with two stands 1 on the bearing box 12, stand 1 lower extreme is connected with bearing box 12, entablature 2 and bottom end rail 3 respectively with two stand 1 sliding connection, the both ends of entablature and bottom end rail are respectively through locating hole and location bolt 4 and stand swing joint, the push down part is located between entablature and the bottom end rail, the bottom of bottom end rail is equipped with and passes the power part, pass power part and alignment part swing joint, alignment part and bearing box activity cover are put. The lower cross beam is driven by the pressing component to move downwards, and the straightening component is controlled by the force transmission component to move downwards while the lower cross beam moves downwards, so that the U-shaped reinforcing steel bars 16 are straightened by the straightening component.

The force transmission component comprises a bearing cylinder 8 and a first force transmission shaft 9, the upper end of the bearing cylinder 8 is connected with the bottom surface of the lower cross beam 3, the upper end of the first force transmission shaft 9 is connected with the lower end of the bearing cylinder 8, and the lower end of the first force transmission shaft 9 is provided with a connecting sleeve 10 connected with the straightening component. The connecting sleeve 10 is provided with a positioning hole which is fixedly connected with the upper end of the second force transmission shaft 11 of the straightening component through a positioning pin. The downward movement of the lower beam 3 transfers downward power to the straightening part through the bearing cylinder 8 and the force transmission shaft I9, so that the straightening part moves downward.

The straightening component comprises a second force transmission shaft 11 and a straightening hand 15, and the lower end of the second force transmission shaft 11 is provided with the straightening hand 15. The bottom surface of the straightening gripper 15 is in an inverted U shape, and two ends of the bottom surface of the straightening gripper are transited to a plane from the center to the inclined plane. The length of the second force transmission shaft 11 can be set according to different use requirements, and is commonly used in six specifications of 0.2m, 0.5m, 0.8m, 1.0m, 1.2m and 1.5 m.

And a bearing disc 7 for bearing a pressing component is arranged on the lower cross beam 3. The downward pressing component is a jack 6, and the jack 6 is arranged on the bearing disc on the lower cross beam 3. The bottom surface of the upper crossbeam 2 is provided with a concave bearing platform 5 for fixing the pressing component, the upper end of the jack is contacted with the bottom surface of the upper crossbeam, and the upper crossbeam plays a role in limiting the jack to move upwards.

The center of the bearing box 12 is provided with a through hole 13 into which the straightening component is inserted, four corners of the bottom surface of the bearing box are respectively provided with a self-locking wheel 14 convenient to move, and the straightening device can be conveniently moved to a working position through the self-locking wheels.

A second transmission shaft 11 penetrates through a through hole 13 in the middle of the bearing box 12, is parallel to two adjacent hollow plate beams 17, is wedged and slowly laid down, and then is rotated by 90 degrees, so that the straightening grab is clamped with the upper edges of the U-shaped steel ribs 16 on the two sides; then the lower beam 3 slowly slides downwards along the upright post 1, a first transmission shaft 9 is just contacted with a second transmission shaft 11, and the first transmission shaft 9 and the second transmission shaft 11 are connected into a whole by using a connecting sleeve 10 and a plug pin; a jack 6 is placed in a bearing disc 7 in the middle of the lower cross beam 3, the upper cross beam 2 moves downwards along the upright post 1, the concave bearing platform 5 is wedged with the upper end of the jack 6, and the upper cross beam 2 is fixed by a positioning bolt 4. And finally, manually operating the jack 6 to enable the lower cross beam 4 to slide along the upright post 1, and driving the bearing cylinder 8, the

transmission shafts

9 and 9, the transmission shaft II 11 and the straightening tongs 15 to move downwards, so that the U-shaped steel bars 16 are indirectly straightened gradually.

The utility model discloses a straightening device, operation process labour saving and time saving, efficiency is higher, can accelerate to promote the construction progress, and the degree of straightening also satisfies standard and designing requirement simultaneously, also reduces the harm to U type reinforcing bar at the alignment in-process to strengthen the transverse connection of hollow slab, effectively avoid the too big phenomenon of veneer atress, promoted the horizontal whole atress performance of hollow slab bridge superstructure, ensured the security of hollow slab structure.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Other technical features than those described in the specification are known to those skilled in the art.

Claims

1. A device for straightening reinforcing steel bar at hinge joint of prefabricated hollow slab of bridge, characterized by, including bearing box, stand, entablature, bottom end rail, push down part and straightening part, be equipped with two stands on the bearing box, entablature and bottom end rail respectively with two stand sliding connection, push down the part and locate between entablature and the bottom end rail, the bottom of bottom end rail is equipped with and passes the power part, pass power part and straightening part swing joint, straightening part and bearing box activity cover are put.

2. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow plates according to claim 1, wherein the force transmission component comprises a bearing cylinder and a first force transmission shaft, the upper end of the bearing cylinder is connected with the bottom surface of the lower cross beam, the upper end of the first force transmission shaft is connected with the lower end of the bearing cylinder, and the lower end of the first force transmission shaft is provided with a connecting sleeve connected with the straightening component.

3. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow slab as claimed in claim 1, wherein a bearing disc for bearing the pressing part is arranged on the lower cross beam.

4. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow slab as claimed in claim 1, wherein the bottom surface of the upper cross beam is provided with a concave bearing platform for fixing the pressing component.

5. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow plate as claimed in claim 1, wherein the straightening component comprises a second force transmission shaft and a straightening hand grip, and the lower end of the second force transmission shaft is provided with the straightening hand grip.

6. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow plate as claimed in claim 5, wherein the bottom surface of the straightening gripper is in an inverted U shape, and two ends of the bottom surface of the straightening gripper transition to a plane from the center to the center along an inclined plane.

7. The device for straightening the steel bars at the hinge joints of the precast hollow plates for the bridge according to claim 1, wherein the pressing member is a jack, the jack is placed on the lower cross beam, and the upper end of the jack is in contact with the bottom surface of the upper cross beam.

8. The device for straightening the steel bars at the hinge joints of the bridge prefabricated hollow plate according to claim 1, wherein a through hole into which a straightening part is inserted is formed in the center of the bearing box, and self-locking wheels which are convenient to move are respectively arranged at four corners of the bottom surface of the bearing box.