Quick splicing structure for road and bridge prefabricated slabs

Abstract

The utility model discloses a road and bridge precast slab quick splicing structure, which relates to the technical field of precast slab splicing, and comprises a splicing plate, a driving component is arranged in the middle of the splicing plate, a plurality of connecting components are arranged on two sides of the splicing plate, the splicing plate is arranged between two adjacent precast slab bodies, and the connecting components are connected with the driving component. The connecting assemblies on the two sides are inserted into the prefabricated plate bodies on the two sides correspondingly, each connecting assembly comprises a limiting rod, the limiting rods are clamped into the prefabricated plate bodies, a rotary knob is rotated to drive a rotary shaft and a plurality of worms and worm gears to rotate, and therefore the connecting rods are driven to rotate synchronously, and the connecting assemblies are driven to conduct connecting action at the same time. And by arranging worm and gear connection, the anti-reverse-rotation effect can be achieved, the splicing stability and reliability are improved, the threaded rod drives the threaded sleeve and the movable block to move, the limiting rod abuts against the inserting groove, and the prefabricated plate body can be effectively prevented from being separated from the splicing plate.

Description

Technical Field

[0001] This utility model relates to the field of precast slab splicing technology, and in particular to a rapid splicing structure for road and bridge precast slabs. Background Technology

[0002] In road and bridge construction, the splicing of precast slabs is a crucial task. Traditional splicing methods for precast slabs in road and bridge engineering often have many inconveniences. Not only is the splicing process time-consuming and labor-intensive, but the stability and reliability of the connection are also difficult to guarantee. For example, some conventional connection methods are prone to loosening or reversing when subjected to external forces, which poses a potential risk to the structural safety of road and bridge. In addition, when precast slabs need to be repaired or replaced, the disassembly process is extremely cumbersome, which seriously affects the progress of the project. Therefore, developing a road and bridge precast slab splicing structure that can achieve rapid splicing, stable and reliable splicing, and convenient disassembly is of great practical significance to meet the needs of modern road and bridge construction for efficiency and safety. Utility Model Content

[0003] The purpose of this utility model is to provide a rapid splicing structure for precast slabs of roads and bridges, which can realize the rapid splicing or disassembly of precast slabs, prevent loosening of connections, improve the stability and reliability of splicing, and effectively solve the problems in the background art mentioned above.

[0004] This utility model provides a rapid splicing structure for precast road and bridge slabs, including a splicing plate. A driving component is provided in the middle of the splicing plate, and several connecting components are provided on both sides of the splicing plate. The splicing plate is disposed between two adjacent precast slabs. The connecting components on both sides are respectively inserted into the precast slabs on both sides. The connecting components include a limiting rod, which is snapped into the precast slab.

[0005] Preferably, a number of inserts are fixedly connected to both sides of the splicing plate, and a slot is provided at one end of the prefabricated plate.

[0006] Preferably, one end of the splicing plate is provided with an operating cavity, and the driving component includes a rotating shaft, which is rotatably installed inside the splicing plate.

[0007] Preferably, a knob is fixedly connected to one end of the rotating shaft, and the knob is located inside the operating cavity.

[0008] Preferably, a plurality of worms are fixedly mounted on the rotating shaft, and each worm is meshed with a worm wheel.

[0009] Preferably, the connecting assembly further includes a connecting rod that passes through the insert block, one end of the connecting rod being fixedly connected to the worm gear, and the other end being fixedly connected to a screw.

[0010] Preferably, a threaded sleeve is threaded onto the screw, and the threaded sleeve is fixedly installed inside the movable block. Limiting grooves are provided on both sides of the movable block.

[0011] Preferably, a limiting frame is fixedly connected to one side of the insertion block, and the movable block is slidably connected within the limiting frame.

[0012] Preferably, torsion springs are provided on both sides of the limiting rod, one end of the limiting rod is rotatably connected to the insert block, and the other end abuts against the limiting groove.

[0013] Preferably, the limiting rod is provided with a locking block, which abuts against the inner wall of the slot.

[0014] The rapid splicing structure for precast road and bridge slabs provided in this embodiment of the invention has the following advantages compared to the prior art:

[0015] 1. This utility model drives the rotating shaft and several worm gears to rotate by rotating the knob. The worm gears drive the worm wheel to rotate, thereby driving the connecting rod to rotate synchronously. This, in turn, drives several connecting components to perform connection actions, achieving the function of rapid splicing. By setting the worm wheel and worm gear connection, it can play a role in preventing reverse rotation and improving the stability and reliability of splicing.

[0016] 2. This utility model uses a screw to drive the screw sleeve and movable block to move. The movable block gradually approaches the insert block and pushes the limiting rod outward during the movement, causing the limiting rod to open outward until it abuts against the corner of the inner wall of the slot. The locking block abuts against the side wall of the slot, which can effectively prevent the precast slab from detaching from the splicing plate. When disassembly is required, the screw is rotated in the opposite direction to move the movable block away from the insert block. The limiting rods on both sides gradually retract under the action of the torsion spring, making it easy to remove the connecting components from the slot. The splicing and disassembly operations are simple and quick, which helps to quickly splice or disassemble road and bridge precast slabs. Attached Figure Description

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the prefabricated panels after splicing, according to an embodiment of the present invention.

[0019] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the prefabricated panels after splicing, according to an embodiment of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the splicing mechanism according to an embodiment of the present utility model;

[0021] Figure 4This is a three-dimensional structural diagram of the connecting component in an embodiment of the present utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the driving component and the connecting component according to an embodiment of the present utility model;

[0023] Figure 6 This is a front view structural diagram of the prefabricated panels after splicing according to an embodiment of the present invention;

[0024] Figure 7 This is an embodiment of the present utility model. Figure 6 Schematic diagram of the three-dimensional structure in cross-section of the AA.

[0025] Figure 8 This is an embodiment of the present utility model. Figure 7 A magnified view of the structure at point B in the middle;

[0026] Figure 9 This is an exploded view of the connecting component in an embodiment of the present invention.

[0027] Figure label:

[0028] 1. Splicing panel; 101. Operating cavity; 11. Insert block; 12. Limiting frame; 2. Connecting assembly; 21. Limiting rod; 211. Locking block; 22. Movable block; 221. Limiting groove; 23. Screw sleeve; 24. Screw; 25. Connecting rod; 26. Torsion spring; 3. Drive assembly; 31. Rotating shaft; 32. Knob; 33. Worm gear; 34. Worm wheel; 4. Precast panel; 41. Slot. Detailed Implementation

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Please refer to Figures 1-9 This utility model embodiment provides a rapid splicing structure for precast road and bridge slabs, including a splicing plate 1, a driving component 3 in the middle of the splicing plate 1, and several connecting components 2 on both sides of the splicing plate 1. The splicing plate 1 is disposed between two adjacent precast slabs 4, and the connecting components 2 on both sides are respectively inserted into the precast slabs 4 on both sides. The connecting components 2 include a limiting rod 21, which is snapped into the precast slab 4.

[0031] Several inserts 11 are fixedly connected to both sides of the splicing panel 1, and a slot 41 is opened at one end of the precast panel 4.

[0032] In this application, the splicing panel 1, the insert block 11, the connecting component 2, and the driving component 3 together form a quick splicing structure. This splicing structure serves as a connection between two prefabricated panels 4, enabling the prefabricated panels 4 to be quickly spliced ​​into a whole. During splicing, the connecting component 2 and the insert block 11 are inserted into the slot 41, which is T-shaped. The connecting component 2 is located inside the front end of the slot 41, and the insert block 11 is located inside the rear end of the slot 41. Through the cooperation of the slot 41, the insert block 11, and the connecting component 2, it can be ensured that the sides of the splicing panel 1 and the prefabricated panel 4 are flush and neatly joined.

[0033] One end of the splicing plate 1 is provided with an operating cavity 101. The drive assembly 3 includes a rotating shaft 31, which is rotatably installed in the splicing plate 1. One end of the rotating shaft 31 is fixedly connected to a knob 32, which is located in the operating cavity 101. Several worm gears 33 are fixedly installed on the rotating shaft 31, and each worm gear 33 is meshed with a worm wheel 34.

[0034] In this application, one end of the operating cavity 101 is provided with an openable cover. By placing the knob 32 inside the operating cavity 101, it is possible to prevent external force from accidentally touching the knob 32 and causing the connection to loosen. When the drive component 3 is working, rotating the knob 32 drives the rotating shaft 31 and several worm gears 33 to rotate. The worm gears 33 drive the worm wheel 34 to rotate, thereby driving the connecting rod 25 to rotate synchronously, and then simultaneously driving several connecting components 2 to perform connection actions, which plays a role in rapid splicing. By setting the worm wheel 34 and worm gear 33 connection, it can play a role in preventing reverse rotation and improving the stability and reliability of splicing.

[0035] The connecting assembly 2 also includes a connecting rod 25, which passes through the insert block 11. One end of the connecting rod 25 is fixedly connected to the worm gear 34, and the other end is fixedly connected to a screw 24. A screw sleeve 23 is threaded onto the screw 24 and is fixedly installed in the movable block 22. Limiting grooves 221 are provided on both sides of the movable block 22. A limiting frame 12 is fixedly connected to one side of the insert block 11, and the movable block 22 is slidably connected to the limiting frame 12. Torsion springs 26 are provided on both sides of the limiting rod 21. One end of the limiting rod 21 is rotatably connected to the insert block 11, and the other end abuts against the limiting groove 221. A locking block 211 is provided on the limiting rod 21, and the locking block 211 abuts against the inner wall of the slot 41.

[0036] In this application, the screws 24 on both sides have opposite thread directions. When the connecting rod 25 rotates, the screws 24 on both sides drive the screw sleeve 23 and the movable block 22 to move. The movable block 22 gradually approaches the insert block 11 and pushes the limiting rod 21 outward during the movement, so that the limiting rod 21 opens outward until it abuts against the corner of the inner wall of the slot 41. The locking block 211 abuts against the side wall of the slot 41, which can effectively prevent the precast slab 4 from detaching from the splicing plate 1. When disassembly is required, the screws 24 are rotated in the opposite direction to make the movable block 22 move away from the insert block 11. The limiting rods 21 on both sides gradually retract under the action of the torsion spring 26, which makes it easy to remove the connecting component 2 from the slot 41. The splicing and disassembly operations are simple and quick, which helps to quickly splice or disassemble the road and bridge precast slabs.

[0037] In summary, the working principle of the rapid splicing structure for precast bridge slabs in this utility model embodiment is as follows: the insert blocks 11 on both sides and the connecting components 2 are respectively inserted into the slots 41 of the precast slabs 4 on both sides. Then, the knob 32 is rotated, which drives the rotating shaft 31 and the worm gear 33 to rotate. The worm gear 33 drives the worm wheel 34 and the connecting rod 25 to rotate, so that the movable blocks 22 on both sides simultaneously approach the insert blocks 11 and push the limiting rod 21 to open outward, so that the limiting rod 21 abuts against the corner of the slot 41 and the locking block 211 abuts against the inner wall of the slot 41, so that the precast slab 4 and the splicing plate 1 are tightly and stably connected, realizing the rapid splicing of the precast slab 4.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid splicing structure for precast road and bridge slabs, comprising splicing slabs (1), characterized in that: A driving component (3) is provided in the middle of the splicing plate (1), and several connecting components (2) are provided on both sides of the splicing plate (1). The splicing plate (1) is located between two adjacent precast slabs (4). The connecting components (2) on both sides are respectively inserted into the precast slabs (4) on both sides. The connecting component (2) includes a limiting rod (21), which is snapped into the precast slab (4).

2. The rapid assembly structure for precast road and bridge slabs according to claim 1, characterized in that: Several inserts (11) are fixedly connected to both sides of the splicing plate (1), and a slot (41) is provided at one end of the prefabricated plate (4).

3. The rapid splicing structure for precast road and bridge slabs according to claim 2, characterized in that: The splicing plate (1) has an operating cavity (101) at one end, and the driving component (3) includes a rotating shaft (31), which is rotatably installed inside the splicing plate (1).

4. The rapid assembly structure for precast road and bridge slabs according to claim 3, characterized in that: A knob (32) is fixedly connected to one end of the rotating shaft (31), and the knob (32) is located in the operating cavity (101).

5. The rapid splicing structure for precast road and bridge slabs according to claim 3, characterized in that: A number of worms (33) are fixedly installed on the shaft (31), and each worm (33) is meshed with a worm wheel (34).

6. The rapid splicing structure for precast road and bridge slabs according to claim 5, characterized in that: The connecting assembly (2) also includes a connecting rod (25), which passes through the insert (11). One end of the connecting rod (25) is fixedly connected to the worm gear (34), and the other end is fixedly connected to a screw (24).

7. The rapid splicing structure for precast road and bridge slabs according to claim 6, characterized in that: The screw (24) is threaded with a screw sleeve (23), which is fixedly installed in the movable block (22). Limiting grooves (221) are provided on both sides of the movable block (22).

8. The rapid splicing structure for precast road and bridge slabs according to claim 7, characterized in that: The insertion block (11) is fixedly connected to a limiting frame (12) on one side, and the movable block (22) is slidably connected inside the limiting frame (12).

9. The rapid splicing structure for precast road and bridge slabs according to claim 7, characterized in that: Both sides of the limiting rod (21) are provided with torsion springs (26). One end of the limiting rod (21) is rotatably connected to the insert (11), and the other end abuts against the limiting groove (221).

10. The rapid splicing structure for precast road and bridge slabs according to claim 2, characterized in that: The limiting rod (21) is provided with a locking block (211), which abuts against the inner wall of the slot (41).

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