Prefabricated high-speed bridge expansion device

Abstract

The utility model relates to the technical field of bridge expansion devices, in particular to a prefabricated assembly type high-speed bridge expansion device. Comprising a main beam and a rubber filler, a fixing rib is welded to the outer side of the main beam, a drainage groove plate is installed at the bottom of the main beam, an inclined sliding plate is welded to the inner side of the main beam, a horizontal sliding plate is welded to the inner side of the main beam, the rubber filler is installed on the inner side of the main beam, a comb plate is arranged on the top of the main beam, and a rubber cushion layer is installed on the top of the comb plate. When protrusion or settlement occurs, the bolts are screwed out, the rubber cushion layer can be replaced with rubber cushion layers with different thicknesses, a temporary treatment mode can be achieved, the rubber cushion layer can be replaced only by screwing out the bolts, maintenance of the telescopic device can be more convenient and faster, and the service life of the telescopic device is prolonged. By adopting the mode, the influence caused by pressure settlement or protrusion of the device can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion devices, in particular to a prefabricated and assembled high-speed bridge expansion device. Background Art

[0002] Bridge expansion joints are typically installed between beam ends, between beam ends and abutments, or at hinged joints to accommodate bridge deck deformation. These joints must be able to freely expand and contract in both directions parallel and perpendicular to the bridge axis, ensuring they are strong and reliable. Existing expansion joints are typically made of steel. When vehicles pass over these joints, the aging of the joints and the impact of vehicles on them can cause them to protrude or sink. This can cause vehicles to jerk or make noises as they pass over them, impacting their travel and causing noise pollution. Existing solutions typically involve regular inspection and maintenance of the joints. However, vehicles travel at high speeds on highway bridges, making it difficult for staff to detect and address these issues promptly. Furthermore, maintenance of the joints on highway bridges is also difficult. Utility Model Content

[0003] In response to the above problems, the purpose of the present utility model is to provide a prefabricated and assembled telescopic device for a high-speed bridge, which solves the problem that the existing telescopic device is prone to protrusion or settlement due to aging of the bridge telescopic device and vehicle rolling over, which in turn causes the vehicle to jump or make noise when passing through the telescopic device, affecting the vehicle's driving and causing noise pollution. The existing treatment method is usually to regularly inspect and maintain the telescopic device, but when the high-speed bridge is in use, the vehicle is traveling at high speed, which is not convenient for the staff to discover and deal with it in time, and it is not convenient to maintain the telescopic device on the high-speed bridge.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a prefabricated and assembled high-speed bridge expansion device, including a main beam and a rubber filling, the outer side of the main beam is welded with fixed ribs, and a drainage trough plate is installed at the bottom of the main beam, the inner side of the main beam is welded with an inclined slide plate, and the inner side of the main beam is welded with a horizontal slide plate, the rubber filling is installed on the inner side of the main beam, the top of the main beam is provided with a comb plate, and the top of the comb plate is installed with a rubber pad.

[0005] The beneficial effects of the present invention are as follows: when protrusion or settlement occurs, the rubber pad can be replaced with a rubber pad of different thickness by unscrewing the bolts, which can be used as a temporary treatment method, and the rubber pad can be replaced by simply unscrewing the bolts, which can make the maintenance of the telescopic device more convenient and quick. This method can effectively reduce the impact of the device being compressed, settled or protruded.

[0006] In order to facilitate the expansion and contraction of the drainage trough plate:

[0007] As a further improvement of the above technical solution: a sliding groove is provided at a position of the main beam close to the drainage trough plate, and a snap-fit ​​sliding installation structure is formed between the drainage trough plate and the main beam through the sliding groove.

[0008] The beneficial effect of this improvement is that the slide groove can prevent the drainage trough plate from being subjected to pressure from the main beam when the main beam expands and contracts with the bridge, thereby ensuring the normal use of the drainage trough plate.

[0009] To facilitate the fixing of the tilt slide:

[0010] As a further improvement of the above technical solution: the inclined slide plate and the main beam are welded and integrated.

[0011] The beneficial effect of this improvement is that the integrated welding setting can make the connection between the inclined slide plate and the main beam more reliable and firm.

[0012] To facilitate the installation of the rubber filling:

[0013] As a further improvement of the above technical solution: a card slot is opened on the inner side of the main beam near the rubber filling, and a card-engaging installation structure is formed between the rubber filling and the main beam through the card slot.

[0014] The beneficial effect of this improvement is that the snap-fit ​​installation structure can make the connection between the rubber filling and the main beam more reliable and firm, and can also effectively ensure the position of the rubber filling.

[0015] To facilitate the replacement of the rubber pad:

[0016] As a further improvement of the above technical solution: the rubber pad layer and the comb plate are fixed by bolts.

[0017] The beneficial effect of this improvement is that the rubber pad can be easily and quickly replaced from the comb plate by fixing with bolts.

[0018] To avoid interference between the rubber pad and the comb plate:

[0019] As a further improvement of the above technical solution: a slot is provided at a position of the comb plate close to the rubber pad layer, and a sliding installation structure is formed between the rubber pad layer and the comb plate through the slot.

[0020] The beneficial effect of this improvement is that the card slot can facilitate the sliding of the rubber pad as the position of the comb plate moves when the bridge is extended or retracted, thereby avoiding interference of the rubber pad with the comb plate when the device is extended or retracted.

[0021] To facilitate vehicle travel:

[0022] As a further improvement of the above technical solution: both ends of the rubber cushion layer are rounded.

[0023] The beneficial effect of this improvement is that the rounded setting can facilitate the vehicle tires to pass through the rubber cushion layer, reducing the bumps of the vehicle.

[0024] To facilitate drainage of the gutter board:

[0025] As a further improvement of the above technical solution: the drainage trough plate and the main beam are arranged parallel to each other.

[0026] The beneficial effect of this improvement is that the device can be drained through the drainage trough plate to avoid water accumulation inside the device, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall first axonometric structure.

[0028] Figure 2 This is a schematic diagram of the overall axonometric explosion structure.

[0029] Figure 3 This is a schematic diagram of the overall second axonometric structure.

[0030] Figure 4 It is a schematic diagram of the overall main structure.

[0031] Figure 5 It is a schematic diagram of the overall structure from a top view.

[0032] In the figure: 1. Main beam; 11. Fixed reinforcement; 12. Drainage trough plate; 13. Inclined slide plate; 14. Horizontal slide plate; 2. Rubber filling; 3. Comb plate; 4. Rubber cushion layer. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0034] like Figure 1-5As shown, a prefabricated high-speed bridge expansion device includes a main beam 1 and a rubber filler 2. The outer side of the main beam 1 is welded with a fixed rib 11, and the bottom of the main beam 1 is installed with a drainage trough plate 12. The inner side of the main beam 1 is welded with an inclined slide 13, and the inner side of the main beam 1 is welded with a horizontal slide 14. The rubber filler 2 is installed on the inner side of the main beam 1. The top of the main beam 1 is provided with a comb plate 3, and the top of the comb plate 3 is installed with a rubber pad 4. When protrusion or settlement occurs, the rubber pad 4 can be replaced with a rubber pad 4 of different thickness by unscrewing the bolts, which can be used as a temporary The processing method is simple, and the rubber pad 4 can be replaced by unscrewing the bolts, which can make the maintenance of the telescopic device more convenient and quick. This method can effectively reduce the impact of the device under pressure settlement or protrusion. The main beam 1 is provided with a slide groove near the drainage trough plate 12, and the drainage trough plate 12 and the main beam 1 are connected by the slide groove to form a sliding installation structure. The slide groove can prevent the drainage trough plate 12 from being subjected to the pressure of the main beam 1 when the main beam 1 is extended and retracted with the bridge, thereby ensuring the normal use of the drainage trough plate 12. The inclined slide plate 13 and the main beam 1 are welded and integrated. The integrated connection setting can make the connection between the inclined slide plate 13 and the main beam 1 more reliable and firm. A card slot is provided on the inner side of the main beam 1 near the rubber filling 2, and the rubber filling 2 and the main beam 1 form a card installation structure through the card slot. The card installation structure can make the connection between the rubber filling 2 and the main beam 1 more reliable and firm, and can also effectively ensure the position of the rubber filling 2. The rubber pad 4 and the comb plate 3 are fixed by bolts. The bolt fixation allows the rubber pad 4 to be easily and quickly replaced from the comb plate 3. The comb plate 3 is provided with a card slot near the rubber pad 4. Grooves, and a sliding installation structure is formed between the rubber pad layer 4 and the comb plate 3 through a card slot. The card slot can facilitate the rubber pad layer 4 to slide along with the movement of the comb plate 3 when the bridge is extended or retracted, thereby avoiding the interference of the rubber pad layer 4 with the comb plate 3 when the device is extended or retracted. The two ends of the rubber pad layer 4 are rounded, and the rounded setting can facilitate the vehicle tires to pass through the rubber pad layer 4, thereby reducing the bumps of the vehicle. The drainage trough plate 12 and the main beam 1 are arranged parallel to each other, and the device can be drained through the drainage trough plate 12 to avoid water accumulation inside the device, thereby increasing the service life of the device.

[0035] The working principle of the utility model is as follows: the device is welded or fixed with bolts at the expansion joint position of the bridge, the rubber filling 2 is installed in the middle position of the main beam 1, and after adjustment, the rubber pad 4 is installed above the comb plate 3 with bolts. After appropriate adjustment, the telescopic device and the expansion joint are cast and connected to complete the installation of the device. During the use of the device, the inclined slide 13 and the horizontal slide 14 guide the telescopic device when the bridge is expanded and contracted. During the contraction process, the rubber filling 2 buffers the bridge. The engaging and sliding installation structure between the rubber pad 4 and the comb plate 3 can ensure the position of the rubber pad 4, thereby preventing the rubber pad 4 from warping or falling off. When the vehicle passes through the telescopic device, the rubber pad 4 is compressed and contracted while evenly transmitting the pressure to the main beam 1. When protrusion or settlement occurs, the thickness of the rubber pad 4 can be adjusted by unscrewing the bolts. It can be used as a temporary treatment method, and the rubber pad 4 can be replaced by simply unscrewing the bolts, which can make the maintenance of the telescopic device more convenient and quick. This method can effectively reduce the impact of the device under pressure, settlement or protrusion.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present utility model.

Claims

1. A prefabricated high-speed bridge expansion device, comprising a main beam (1) and a rubber filler (2), characterized in that: The outer side of the main beam (1) is welded with a fixed rib (11), and the bottom of the main beam (1) is installed with a drainage trough plate (12), the inner side of the main beam (1) is welded with an inclined slide plate (13), and the inner side of the main beam (1) is welded with a horizontal slide plate (14), the rubber filler (2) is installed on the inner side of the main beam (1), the top of the main beam (1) is provided with a comb plate (3), and the top of the comb plate (3) is installed with a rubber cushion layer (4).

2. The prefabricated and assembled high-speed bridge expansion device according to claim 1, characterized in that: A sliding groove is provided on the main beam (1) near the drainage trough plate (12), and a snap-fit ​​sliding installation structure is formed between the drainage trough plate (12) and the main beam (1) through the sliding groove.

3. The prefabricated high-speed bridge expansion device according to claim 1, characterized in that: The inclined slide plate (13) and the main beam (1) are integrated by welding.

4. The prefabricated high-speed bridge expansion device according to claim 1, characterized in that: A clamping groove is provided on the inner side of the main beam (1) near the rubber filler (2), and a clamping installation structure is formed between the rubber filler (2) and the main beam (1) through the clamping groove.

5. The prefabricated and assembled high-speed bridge expansion device according to claim 1, characterized in that: The rubber cushion layer (4) and the comb plate (3) are fixed by bolts.

6. The prefabricated high-speed bridge expansion device according to claim 1, characterized in that: A slot is provided on the comb plate (3) near the rubber pad layer (4), and a sliding installation structure is formed between the rubber pad layer (4) and the comb plate (3) via the slot.

7. The prefabricated high-speed bridge expansion device according to claim 1, characterized in that: Both ends of the rubber cushion layer (4) are rounded.

8. The prefabricated high-speed bridge expansion device according to claim 1, characterized in that: The drainage trough plate (12) and the main beam (1) are arranged parallel to each other.

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