CN212670276U

CN212670276U - Expansion joint structure locking plate

Info

Publication number: CN212670276U
Application number: CN202021011409.0U
Authority: CN
Inventors: 赵乐乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-03-09
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses an expansion joint structure lockplate mainly relates to expansion joint construction field. Comprises a positioning fixing piece and a connecting plate; the positioning fixing piece comprises a middle cylinder, an anti-loosening transition piece and a positioning bolt; the top of the middle cylinder is provided with a hexagonal limiting groove; the anti-loosening transition piece sequentially penetrates through the hexagonal limiting groove, the central hole, the middle cylinder and the pressing seat to be connected with the bolt hole in the top surface of the expansion joint beam structure. The beneficial effects of the utility model reside in that: the device can more conveniently, simply and efficiently complete the parallel equal-height positioning process of the side beams at two sides and the middle beam, the positioning after positioning and the disassembly work of the locking plate after installation.

Description

Expansion joint structure locking plate

Technical Field

The utility model relates to an expansion joint construction field specifically is an expansion joint structure lockplate.

Background

The expansion joint of the bridge is formed by adjustable expansion joints between two side beams and a middle beam, when the two side beams and the middle beam are installed, the two side beams and the middle beam need to be parallel and have the same plane height adjustment, and after the adjustment, the locking plate is constructed by the expansion joint to be welded and positioned. And the height difference between the top surface of the expansion joint beam and the road surfaces at the two sides is less than 2mm after the expansion joint beam is installed.

As shown in fig. 6, the conventional expansion joint structure locking plate is only a thin steel plate, and the bottom surface of the existing expansion joint structure locking plate is lapped on and contacted with the top surfaces of the two side beams and the middle beam which are parallel to each other, and then is welded, fixed and positioned at the contact point. And after the side beams at the two sides and the middle beam are installed, chiseling the locking plate, and then polishing the welding points. The parallel equal-height positioning process of the whole two side beams and the middle beam, positioning after positioning, disassembly of the locking plate after installation and welding spot polishing are difficult, and the construction efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expansion joint structure lockplate, it can be more convenient, simple, the efficient accomplishes the dismantlement work of lockplate after location, the installation of height-adjusting process, the positioning of transfer after the parallel of both sides curb girder and middle center sill.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

an expansion joint structure locking plate comprises a positioning fixing piece and a connecting plate; adjacent positioning fixing pieces are connected through a connecting plate; the positioning fixing piece comprises a middle cylinder, an anti-loosening transition piece and a positioning bolt; the top of the middle cylinder is provided with a hexagonal limiting groove; the anti-loosening transition piece comprises a hexagonal limiting block, a transition ring and a pedestal from bottom to top, the hexagonal limiting block is matched with a hexagonal limiting groove, the groove height of the hexagonal limiting groove is smaller than the total height of the hexagonal limiting block and the transition ring, and center holes are formed in the centers of the transition ring and the pedestal on the anti-loosening transition piece; and a pressing seat which is in pressing contact with the top surface of the expansion joint beam structure is arranged below the middle cylinder. The positioning bolt sequentially penetrates through the hexagonal limiting groove, the central hole, the middle cylinder and the pressing seat to be connected with the bolt hole in the top surface of the expansion joint beam structure. The connecting plate is fixedly connected with the outer side face of the middle cylinder.

Contrast prior art, the beneficial effects of the utility model reside in that:

when the device is used, under the condition that the pressing seat under the middle cylinder is in contact with the top surface of the beam structure, after the contact of the bolt heads and the top surface of the pedestal is realized by the multiple groups of positioning devices on the beam, equal-height parallel positioning of the whole beam structure is completed, and in order to avoid loosening of positioning bolts in the transportation process, the bolt heads of the positioning bolts are welded and fixed with the top surface of the pedestal. According to the method, a ruler is not needed for measurement, and the positioning bolt is only required to be screwed into the corresponding bolt hole of the beam structure. The parallel equal-height positioning process of the side beams at the two sides and the middle beam and the positioning work after positioning can be completed more conveniently, simply and efficiently.

After the beam structure installation at expansion joint was accomplished, use handheld cutting machine will exceed the transition ring in hexagonal spacing groove and cut off afterwards, the pedestal at transition ring top no longer is an integrative part with the hexagonal stopper, so the hexagonal stopper no longer inject the rotation of pedestal through rotate with the pedestal welding positioning bolt together, just can follow the bolt hole of beam structure with positioning bolt and screw out to dismantle the device from beam structure. The disassembly work of the device can be completed more conveniently, simply and efficiently.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the positioning and fixing member of the present invention.

Fig. 3 is an exploded view of the positioning and fixing member of the present invention.

Fig. 4 is a front view of the middle positioning fixing member of the present invention.

Fig. 5 is a using state diagram of the present invention.

Fig. 6 is a prior art illustration.

Reference numerals shown in the drawings:

1. a positioning fixing piece; 2. a connecting plate; 3. a middle cylinder; 4. a slack-proof transition piece; 5. positioning the bolt; 6. a hexagonal limiting groove; 7. a hexagonal limiting block; 8. a transition ring; 9. a pedestal; 10. a central bore; 11. and (6) pressing a seat.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

An expansion joint structure lockplate, major structure include three positioning mounting 1 and two connecting plates 2. The three positioning fixing pieces 1 are two side beam fixing pieces and a middle beam fixing piece respectively, and the two connecting plates 2 are arranged between the side beam fixing pieces and the middle beam fixing pieces. The function of the device is realized by processing corresponding bolt holes on the side beams at two sides and the middle beam.

The structure of the positioning fixing piece 1 comprises a middle barrel 3, a locking transition piece 4 and a positioning bolt 5. A pressing seat 11 is arranged below the middle cylinder 3, and a hexagonal limiting groove 6 is arranged at the top of the middle cylinder 3; locking transition piece 4 is by including hexagonal stopper 7, transition ring 8 and pedestal 9 from bottom to top, and hexagonal stopper 7 cooperates with hexagonal spacing groove 6, and hexagonal spacing groove 6's groove height is less than hexagonal stopper 7 and transition ring 8's total height, therefore transition ring 8 has partly to exceed hexagonal spacing groove 6, and transition ring 8 and pedestal 9 center on the locking transition piece 4 are equipped with centre bore 10. The positioning bolt 5 sequentially penetrates through the hexagonal limiting groove 6, the central hole 10, the middle cylinder 3 and the pressing seat 11 to be connected with a bolt hole on the beam. In the case that the pressing seat 11 under the middle cylinder 3 is contacted with the top surface of the beam structure, the equal height adjustment is completed after the bolt heads of the three positioning bolts 5 are contacted with the top surface of the pedestal 9. After the plurality of groups of positioning devices on the beam realize the contact of the bolt heads and the top surface of the pedestal 9, the parallel positioning of the whole beam structure is completed, the measurement by using a ruler is not needed, and only the positioning bolts 5 are required to be screwed into the corresponding beam structure bolt holes.

In order to avoid loosening of the positioning bolt 5 in the transportation process, the bolt head of the positioning bolt 5 is fixedly welded with the top surface of the pedestal 9, the rotation of the anti-loosening transition piece 4 is limited due to the limitation of the hexagonal limiting groove 6 and the hexagonal limiting block 7, the bolt head of the positioning bolt 5 is fixedly connected with the anti-loosening transition piece 4 after being fixedly welded with the top surface of the pedestal 9, the rotation of the positioning bolt 5 is correspondingly limited, the loosening of the positioning bolt 5 is avoided, and the stability of a beam structure in the whole transportation and field installation process is guaranteed.

Moreover, since the height of the hexagonal limiting groove 6 is smaller than the total height of the hexagonal limiting block 7 and the transition ring 8, a part of the transition ring 8 is higher than the hexagonal limiting groove 6. After the beam structure installation at expansion joint was accomplished, use handheld cutting machine will exceed the transition ring 8 of hexagonal spacing groove 6 and cut off afterwards, the pedestal 9 at transition ring 8 top no longer is an integrative part with hexagonal stopper 7, so hexagonal stopper 7 no longer prescribes a limit to the rotation of pedestal 9, so, through rotating positioning bolt 5 with the welding of pedestal 9 together, just can unscrew positioning bolt 5 from the bolt hole of beam structure to dismantle the device from beam structure.

When the detached device is used in the subsequent cycle, only a new positioning bolt 5 and the anti-loosening transition piece 4 need to be matched and used.

In summary, the following steps:

when the device is applied to the construction of the expansion joint, the parallel equal-height positioning process of the side beams at two sides and the middle beam, the positioning after positioning and the disassembly of the locking plate after installation can be completed more conveniently, simply and efficiently by the detailed using method.

Claims

1. An expansion joint structure locking plate is characterized in that: comprises a positioning fixing piece (1) and a connecting plate (2); adjacent positioning fixing pieces (1) are connected through a connecting plate (2);

the positioning fixing piece (1) comprises a middle barrel (3), an anti-loosening transition piece (4) and a positioning bolt (5); the top of the middle barrel (3) is provided with a hexagonal limiting groove (6); the anti-loosening transition piece (4) comprises a hexagonal limiting block (7), a transition ring (8) and a pedestal (9) from bottom to top, the hexagonal limiting block (7) is matched with a hexagonal limiting groove (6), the groove height of the hexagonal limiting groove (6) is smaller than the total height of the hexagonal limiting block (7) and the transition ring (8), and center holes (10) are formed in the centers of the transition ring (8) and the pedestal (9) on the anti-loosening transition piece (4); the positioning bolt (5) sequentially penetrates through the hexagonal limiting groove (6), the central hole (10) and the middle cylinder (3) to be connected with the bolt hole in the top surface of the expansion joint beam structure.

2. An expansion joint structure locking plate according to claim 1, characterized in that: and a pressing seat (11) which is in pressing contact with the top surface of the expansion joint beam structure is arranged below the middle cylinder (3).

3. An expansion joint structure locking plate according to claim 1, characterized in that: the connecting plate (2) is fixedly connected with the outer side surface of the middle cylinder (3).