Old bridge widening structure suitable for highway bridge

Abstract

The utility model relates to the technical field of highway bridge widening, in particular to an old bridge widening structure suitable for a highway bridge, which comprises a mounting seat A. The side surface of the mounting seat A is fixedly connected with a clamping plate, and one end of the clamping plate is clamped with a mounting seat B. According to the old bridge widening structure suitable for the highway bridge, through the arrangement of the mounting base A, the clamping plate, the mounting base B, the mounting groove, the mounting plate, the inserting plate and the mounting bolts, when the old bridge widening structure suitable for the highway bridge is used, the designed bridge floor is formed by splicing the mounting bases, and when the width of the bridge floor needs to be widened, a worker places the clamping groove in the mounting base B into the mounting groove; the mounting plate is clamped on the clamping plate on the mounting seat A, the mounting seat A and the mounting seat B are attached together, the mounting plate is clamped into the butted mounting grooves in the mounting seat A and the mounting seat B, the inserting plates at the two ends of the bottom of the mounting plate can be clamped into the inserting grooves in the inner walls of the mounting grooves in the two sides, and the mounting bolts are screwed into the mounting plate and the corresponding threaded grooves in the inner walls of the mounting grooves.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge widening technology, specifically a widening structure for old highway bridges. Background Technology

[0002] Highway bridges are bridge structures built specifically for the passage of vehicles and pedestrians on highways. They are typically made of steel, reinforced concrete, or wood and are designed to withstand heavy roll loads of up to 80,000 tons. A type of widening structure suitable for existing highway bridges is often used in highway bridge construction.

[0003] However, existing bridge widening structures suitable for highway bridges have the following disadvantages:

[0004] (1) Existing bridge widening structures suitable for highway bridges have weak reinforcement and installation functions. When in use, existing highway bridges may need to adapt to economic development and require widening of the bridge deck, which may result in poor widening effect.

[0005] (2) Existing bridge widening structures suitable for highway bridges have weak compressive strength. When using these devices, some splicing structures are required to facilitate bridge deck widening, but this may lead to a decrease in the compressive strength of the bridge deck. Utility Model Content

[0006] The purpose of this invention is to provide a structure for widening old highway bridges, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a widening structure for old highway bridges, comprising a mounting base A, a clamping plate fixedly connected to the side of the mounting base A, a mounting base B clamped to one end of the clamping plate, a mounting groove formed at the top of the mounting base B, a mounting plate clamped to the inner wall of the mounting groove, insert plates fixedly connected to the bottom two ends of the mounting plate, threaded grooves formed at the top two ends of the mounting plate, mounting bolts threadedly connected to the inner wall of the threaded grooves, a base plate fixedly connected to the inner bottom wall of the mounting base A, a hydraulic rod fixedly connected to the top center of the base plate, a fixing cylinder fixedly connected to the top edge of the base plate, a spring fixedly connected to the inner wall of the fixing cylinder, a connecting cylinder fixedly connected to the top of the spring, and a top plate fixedly connected to the top of the connecting cylinder.

[0008] Preferably, a slot is provided at one end of the inner bottom wall of the mounting groove, and the inner wall of the slot is engaged with one end of the insert plate. The insert plate is inserted into the slot on the inner wall of the mounting groove to prevent displacement between the mounting bases.

[0009] Preferably, the inner wall of the spring is provided with a positioning rod, the top of which is fixedly connected to the bottom center of the connecting cylinder, and the positioning rod can stabilize the tilting deformation of the spring.

[0010] Preferably, a threaded groove is provided at the center of the inner bottom wall of the mounting groove, and the inner wall of the threaded groove is threaded to one end of the mounting bolt, so that the mounting bolt can be screwed into the threaded groove on the inner wall of the mounting groove.

[0011] Preferably, a circular slot is provided at the bottom center of the top plate, and the inner wall of the circular slot is fixedly connected to the top of the hydraulic rod, and the bottom center of the top plate is fixed to the hydraulic rod.

[0012] Preferably, the top of the mounting base A is provided with a concrete layer, and one bottom end of the concrete layer is provided on the top of the mounting base B. After the mounting base A and the mounting base B are installed, a concrete layer needs to be laid on their surfaces.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This bridge widening structure, applicable to highway bridges, consists of mounting base A, a clamping plate, mounting base B, a mounting groove, a mounting plate, insert plates, and mounting bolts. In use, the bridge deck is constructed by splicing multiple mounting bases. When widening the bridge deck is required, the worker inserts the clamping groove on mounting base B onto the clamping plate on mounting base A, bringing mounting base A and mounting base B together. The mounting plate is then inserted into the mounting groove on mounting base A and mounting base B. The insert plates at both ends of the mounting plate's bottom engage with slots on the inner walls of the mounting grooves on both sides. Finally, the mounting bolts are screwed into the corresponding threaded grooves on the inner walls of the mounting plate and mounting groove. This design facilitates bridge deck widening.

[0015] 2. This structure, applicable to widening old highway bridges, consists of mounting base A, a base plate, hydraulic rods, a fixing cylinder, a spring, a connecting cylinder, and a top plate. During use, when a heavy vehicle presses down on the bridge deck, it will press on mounting base A, causing it to be compressed. The top plate will then shift downwards slightly, compressing the hydraulic rod at the bottom of the top plate and reducing the pressure on mounting base A. Simultaneously, the connecting cylinder will press down on the spring inside the fixing cylinder. This design reduces the pressure on the bridge deck and ensures the stability of the anti-compression device under pressure. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a disassembly diagram of the mounting base A of this utility model;

[0018] Figure 3This is a disassembly diagram of the top plate of this utility model;

[0019] Figure 4 This is a disassembly diagram of the fixing cylinder of this utility model.

[0020] In the diagram: 1. Mounting base A; 2. Clamping plate; 3. Mounting base B; 4. Mounting groove; 5. Mounting plate; 6. Insert plate; 7. Mounting bolt; 8. Base plate; 9. Hydraulic rod; 10. Fixing cylinder; 11. Spring; 12. Connecting cylinder; 13. Top plate; 14. Positioning rod; 15. Concrete layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4As shown, this utility model provides a technical solution: a widening structure for old highway bridges, including a mounting base A1. A clamping plate 2 is fixedly connected to the side of the mounting base A1. A mounting base B3 is clamped to one end of the clamping plate 2. A mounting groove 4 is opened on the top of the mounting base B3. A mounting plate 5 is clamped to the inner wall of the mounting groove 4. Insert plates 6 are fixedly connected to the bottom two ends of the mounting plate 5. Threaded grooves are opened on the top two ends of the mounting plate 5. Mounting bolts 7 are threadedly connected to the inner wall of the threaded grooves. The inner bottom wall of the mounting base A1 is fixedly connected to... The bridge deck consists of a base plate 8, with a hydraulic rod 9 fixedly connected to the top center of the base plate 8. A fixing cylinder 10 is fixedly connected to the top edge of the base plate 8, and a spring 11 is fixedly connected to the inner wall of the fixing cylinder 10. A connecting cylinder 12 is fixedly connected to the top of the spring 11, and a top plate 13 is fixedly connected to the top of the connecting cylinder 12. Through the installation of mounting base A1, clamping plate 2, mounting base B3, mounting groove 4, mounting plate 5, insert plate 6, and mounting bolts 7, the bridge deck is constructed by splicing multiple mounting bases during use. When widening the bridge is required... When widening the bridge deck, the worker places the slot on mounting base B3 onto the slot plate 2 on mounting base A1, ensuring that mounting base A1 and mounting base B3 are flush together. The mounting plate 5 is then inserted into the mounting groove 4 on mounting base A1 and mounting base B3. The insert plates 6 at both ends of the bottom of mounting plate 5 will engage with slots on the inner walls of the mounting grooves 4 on both sides. The mounting bolts 7 are then screwed into the corresponding threaded grooves on the inner walls of mounting plate 5 and mounting grooves 4. This setup facilitates the widening of the bridge deck by using mounting base A1, base plate 8, and... The hydraulic rod 9, fixed cylinder 10, spring 11, connecting cylinder 12, and top plate 13 are configured so that when a heavy vehicle presses on the bridge deck, it will press on the mounting base A1, causing the mounting base A1 to be compressed. The top plate 13 will then shift downward slightly, compressing the hydraulic rod 9 at the bottom of the top plate 13 and reducing the pressure on the mounting base A1. At the same time, the connecting cylinder 12 will press down on the spring 11 inside the fixed cylinder 10. This configuration can reduce the pressure on the bridge deck and ensure the stability of the anti-compression device under pressure.

[0023] The mounting slot 4 has a slot at one end of its inner bottom wall. The inner wall of the slot is engaged with one end of the insert plate 6. With the mounting slot 4 and the insert plate 6, the insert plate 6 will be inserted into the slot on the inner wall of the mounting slot 4 during use to prevent displacement between the mounting bases.

[0024] A positioning rod 14 is provided on the inner wall of the spring 11. The top of the positioning rod 14 is fixedly connected to the bottom center of the connecting cylinder 12. Through the arrangement of the spring 11, the positioning rod 14 and the connecting cylinder 12, the positioning rod 14 can stabilize the tilting deformation of the spring 11 during use.

[0025] The inner bottom wall of the mounting groove 4 has a threaded groove at its center. The inner wall of the threaded groove is threaded to one end of the mounting bolt 7. With the mounting groove 4 and the mounting bolt 7, the mounting bolt 7 will be screwed into the threaded groove on the inner wall of the mounting groove 4 during use.

[0026] A circular slot is provided at the bottom center of the top plate 13. The inner wall of the circular slot is fixedly connected to the top of the hydraulic rod 9. With the top plate 13 and the hydraulic rod 9, the bottom center of the top plate 13 is fixed to the hydraulic rod 9 during use.

[0027] The top of the mounting base A1 is provided with a concrete layer 15, and one end of the bottom of the concrete layer 15 is provided on the top of the mounting base B3. With the setting of the mounting base A1, the concrete layer 15 and the mounting base B3, after the mounting base A1 and the mounting base B3 are installed, the concrete layer 15 needs to be laid on their surfaces.

[0028] In this invention, the working steps of the device are as follows:

[0029] First step: The bridge deck of this design is composed of multiple mounting seats spliced ​​together. When it is necessary to widen the bridge deck, the staff will put the slot on the mounting seat B3 into the slot plate 2 on the mounting seat A1, so that the mounting seat A1 and the mounting seat B3 are close together. The mounting plate 5 is inserted into the mounting groove 4 that connects the mounting seats A1 and B3. The insert plates 6 at both ends of the bottom of the mounting plate 5 will be inserted into the slots on the inner wall of the mounting groove 4 on both sides. The mounting bolts 7 are screwed into the corresponding threaded grooves on the inner wall of the mounting plate 5 and the mounting groove 4.

[0030] The second step: When a heavy vehicle presses on the bridge surface, it will press on the mounting base A1, which will be squeezed. The top plate 13 will move downward slightly, so that the hydraulic rod 9 at the bottom of the top plate 13 will be squeezed, reducing the pressure on the mounting base A1. At the same time, the connecting cylinder 12 will press down on the spring 11 inside the fixing cylinder 10, reducing the pressure on the bridge surface.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure for widening an old bridge suitable for a highway bridge, comprising a mounting seat A (1), characterized in that: The side of mounting seat A (1) is fixedly connected with clamping plate (2), one end of clamping plate (2) is clamped with mounting seat B (3), the top of mounting seat B (3) is provided with mounting slot (4), the inner wall of mounting slot (4) is clamped with mounting plate (5), the bottom of mounting plate (5) is fixedly connected with plug plate (6), the top of mounting plate (5) is provided with threaded groove, the inner wall of threaded groove is threadedly connected with mounting bolt (7), the inner bottom wall of mounting seat A (1) is fixedly connected with bottom plate (8), the top center of bottom plate (8) is fixedly connected with hydraulic rod (9), the top edge of bottom plate (8) is fixedly connected with fixed cylinder (10), the inner wall of fixed cylinder (10) is fixedly connected with spring (11), the top of spring (11) is fixedly connected with connecting cylinder (12), the top of connecting cylinder (12) is fixedly connected with top plate (13).

2. A widening structure for an old bridge of a highway bridge according to claim 1, characterized in that: The inner bottom wall of mounting slot (4) is provided with insertion slot, the inner wall of insertion slot is clamped with one end of plug plate (6).

3. The structure for widening an old bridge suitable for a highway bridge according to claim 1, wherein: The inner wall of spring (11) is provided with positioning rod (14), the top of positioning rod (14) is fixedly connected with the bottom center of connecting cylinder (12).

4. The structure for widening an old bridge suitable for a highway bridge according to claim 1, wherein: The inner bottom wall of mounting slot (4) is provided with threaded groove, the inner wall of threaded groove is threadedly connected with one end of mounting bolt (7).

5. The structure for widening an old bridge suitable for a highway bridge according to claim 1, wherein: The bottom center of top plate (13) is provided with circular slot, the inner wall of circular slot is fixedly connected with the top of hydraulic rod (9).

6. A structure for widening an old bridge for a highway bridge according to claim 1, characterized in that: The top of mounting seat A (1) is provided with concrete layer (15), one end of the bottom of concrete layer (15) is arranged on the top of mounting seat B (3).

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