Cross-joint type comb plate expansion joint

Abstract

The utility model relates to the technical field of bridge expansion devices, and discloses a joint crossing type comb plate expansion joint which comprises a first concrete plate, a second concrete plate is arranged on the right side of the first concrete plate, and a fixed end comb plate is arranged on the top of the first concrete plate. Fixed end anchor plates which are evenly distributed are fixedly connected to the bottom of the left side of the fixed end comb plate, a sliding side comb plate is arranged on the top of the second concrete plate, and the sliding side comb plate is in sliding connection with the fixed end comb plate. The fixed end comb plate and the sliding side comb plate can effectively adapt to thermal expansion and cold contraction deformation of the concrete slabs, the fixed end comb plate and the sliding side comb plate are firmly fixed to the corresponding concrete slabs through the fixed end anchor plate and the sliding side anchor plate respectively, and it is ensured that under the effects of vehicle loads, temperature stress and the like, the concrete slabs can be firmly fixed to the fixed end comb plate and the sliding side comb plate. And the continuity and smoothness of the pavement can be guaranteed through sliding connection between the comb plates, and the use performance and durability of the pavement are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge expansion joint technical field, concretely is a kind of cross joint type comb tooth plate expansion joint. BACKGROUND

[0002] Bridge expansion joint is to meet the requirement of bridge deck deformation, usually set expansion joint between two beam ends, beam end and abutment or hinge position of bridge.

[0003] Bridge expansion joint can adjust the displacement and connection between superstructure caused by vehicle load and bridge building material. Bridge expansion joint can prevent rainwater and garbage soil from seeping in and blocking. At the same time, installation, inspection, maintenance and elimination of dirt are simple and convenient. At the setting expansion joint, railing and bridge deck pavement are disconnected. There are many kinds of bridge expansion joints, among which multi-directional displacement comb tooth bridge expansion joint device has a relatively wide application. Multi-directional displacement comb tooth bridge expansion joint device has the advantages of low structure height, wide application range, smooth driving, anti-skid and the like.

[0004] The existing concrete slab cannot effectively adapt to deformation, which may cause mutual extrusion or pulling between concrete slabs. This may cause serious damage such as cracks, fractures and even breakage of road surface, greatly affect the flatness and integrity of road surface, increase the bumping feeling of vehicle driving, reduce driving comfort, and even cause traffic accidents.

[0005] In view of the above problems, a cross joint type comb tooth plate expansion joint is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a cross joint type comb tooth plate expansion joint, which solves the problem that the concrete slab cannot effectively adapt to deformation, which may cause mutual extrusion or pulling between concrete slabs. This may cause serious damage such as cracks, fractures and even breakage of road surface, greatly affect the flatness and integrity of road surface, increase the bumping feeling of vehicle driving, reduce driving comfort, and even cause traffic accidents.

[0007] To achieve the above object, the utility model provides the following technical scheme: a cross joint type comb tooth plate expansion joint, comprising a first concrete slab, a second concrete slab is arranged on the right side of the first concrete slab, a fixed end comb tooth plate is arranged on the top of the first concrete slab, a plurality of fixed end anchor plates are fixedly connected to the bottom of the left side of the fixed end comb tooth plate in a distributed manner, a sliding side comb tooth plate is arranged on the top of the second concrete slab, and the sliding side comb tooth plate is slidably connected with the fixed end comb tooth plate, and a connecting assembly is arranged on the right side of the fixed end comb tooth plate.

[0008] Through the gap between the first concrete slab and the second concrete slab, water can be discharged, and the upper object can slide through thermal expansion and contraction.

[0009] As the further description of the above technical scheme: the connecting assembly comprises a first fixed block, and the first fixed block is fixedly connected to the right bottom of the fixed end comb plate.

[0010] By adopting the above technical scheme, the connecting piece is fixed by the first fixed block.

[0011] As the further description of the above technical scheme: the fixed end anchor plate and the fixed end comb plate are internally fixedly connected with a flow guide plate.

[0012] By adopting the above technical scheme, the water is guided by the flow guide plate.

[0013] As the further description of the above technical scheme: the bottom of the sliding side comb plate is fixedly connected with a sliding side anchor plate.

[0014] By adopting the above technical scheme, the sliding side anchor plate is guided.

[0015] As the further description of the above technical scheme: one end of the first fixed block is fixedly connected with a first connecting piece, and the right side of the first connecting piece is provided with a second connecting piece.

[0016] By adopting the above technical scheme, the first connecting piece and the second connecting piece can be limited.

[0017] As the further description of the above technical scheme: the right top of the second connecting piece is fixedly connected with a fourth fixed block, and the fourth fixed block is fixedly connected with the sliding side comb plate.

[0018] By adopting the above technical scheme, the second connecting piece is fixed by the fourth fixed block.

[0019] As the further description of the above technical scheme: the bottom of the second connecting piece is fixedly connected with a third fixed block, and the third fixed block is fixedly connected with the top of the second concrete plate.

[0020] By adopting the above technical scheme, the second connecting piece is fixed on the second concrete plate by the third fixed block.

[0021] As the further description of the above technical scheme: the left bottom of the first connecting piece is fixedly connected with a second fixed block, and the second fixed block is fixedly connected with the bottom of the fixed end comb plate.

[0022] By adopting the above technical scheme, the first connecting piece is fixed on the fixed end comb plate by the second fixed block.

[0023] Compared with the prior art, the utility model has the advantages that:

[0024] 1. The utility model provides a kind of across joint type comb tooth plate expansion joint, first through fixed end comb tooth plate and sliding side comb tooth plate can effectively adapt to the thermal expansion and contraction deformation of concrete slab, fixed end anchor plate and sliding side anchor plate respectively firmly fixed fixed end comb tooth plate and sliding side comb tooth plate on corresponding concrete slab, ensure that under the action of vehicle load and temperature stress etc., sliding connection between comb tooth plate can guarantee the continuity and flatness of pavement, improve the service performance and durability of pavement.

[0025] 2, the utility model provides a kind of across joint type comb tooth plate expansion joint, the water flow function of guiding in fixed end anchor plate and fixed end comb tooth plate inside by deflector protects the structural integrity of expansion joint and concrete slab, reduces the road disease caused by water damage, further guarantees the long-term stable operation of road, reduces the maintenance and repair cost caused by corrosion etc., improves the use safety and economy of road. DRAWINGS

[0026] Figure 1 It is the overall structure schematic diagram of the utility model;

[0027] Figure 2 It is the structure schematic diagram of fixed end comb tooth plate of the utility model;

[0028] Figure 3 It is the structure schematic diagram of sliding side anchor plate of the utility model;

[0029] Figure 4 It is the structure schematic diagram of first connecting piece of the utility model.

[0030] In the drawing: 1, first concrete slab;2, fixed end comb tooth plate;3, fixed end anchor plate;4, deflector;5, sliding side comb tooth plate;6, sliding side anchor plate;7, second concrete slab;8, first connecting piece;9, first fixed block;10, second fixed block;11, second connecting piece;12, third fixed block;13, fourth fixed block. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0032] For further understanding the contents of the utility model, refer to the drawings to the utility model detailed description.

[0033] Refer to Figure 1The utility model discloses a kind of expansion joints of cross-slit type comb tooth plate, including first concrete slab 1, first concrete slab 1 right side is provided with second concrete slab 7, first concrete slab 1 is located left side, second concrete slab 7 is at its right side, expansion joint exists between the two.

[0034] With reference to Figure 2 - Figure 4 First concrete slab 1 top is provided with fixed end comb tooth plate 2, second concrete slab 7 top is provided with sliding side comb tooth plate 5, and sliding side comb tooth plate 5 is slidably connected with fixed end comb tooth plate 2, fixed end comb tooth plate 2 is fixed with fixed end anchor plate 3 by welding, flow guide plate 4 is electrically welded with fixed end comb tooth plate 2, fixed end anchor plate 3, electrically welded is sealed, sliding side comb tooth plate 5 is fixed with sliding side anchor plate 6 by welding, fixed end comb tooth plate 2 is connected and fixed with bridge embedded steel through fixed end anchor plate 3, sliding side comb tooth plate 5 is connected and fixed with the embedded steel of other side bridge through sliding side anchor plate 6, sliding side comb tooth plate 5 is overlapped on fixed end comb tooth plate 2 and slides, fixed end comb tooth plate 2 has drainage groove and drainage hole, and rainwater flows into drainage hole through the gap of fixed end comb tooth plate 2, is connected to the concentrated drainage of bridge through drainage groove, fixed end comb tooth plate 2 right side is provided with connecting assembly, connecting assembly includes first fixed block 9, first fixed block 9 is fixedly connected at the right side bottom of fixed end comb tooth plate 2, one end of first fixed block 9 is fixedly connected with first connecting piece 8, first connecting piece 8 right side is provided with second connecting piece 11, fourth fixed block 13 is fixedly connected at the right side top of second connecting piece 11, and fourth fixed block 13 is fixedly connected with sliding side comb tooth plate 5, third fixed block 12 is fixedly connected at the bottom of second connecting piece 11, and third fixed block 12 is fixedly connected with the top of second concrete slab 7, second fixed block 10 is fixedly connected at the left side bottom of first connecting piece 8, and second fixed block 10 is fixedly connected with the bottom of fixed end comb tooth plate 2, connecting component cooperates, in the expansion process of concrete slab, it can not only maintain the relative stable connection of fixed end comb tooth plate 2 and sliding side comb tooth plate 5, but also can guarantee that they slide smoothly, effectively adapt to the deformation of concrete slab due to thermal expansion and contraction, ensure the continuity and flatness of road surface.

[0035] With reference to Figure 1 And Figure 2 Fixed end anchor plate 3 is fixedly connected with fixed end comb tooth plate 2 inside fixed end comb tooth plate 2 left side bottom, and fixed end anchor plate 3 is connected with flow guide plate 4 inside and sealed, which is to guide water flow, prevent water from accumulating at expansion joint, avoid the problems such as concrete corrosion or structure damage caused by water accumulation, sliding side comb tooth plate 5 bottom is fixedly connected with sliding side anchor plate 6.

[0036] Working principle: when the temperature changes, the concrete plate will produce expansion and contraction deformation due to thermal expansion and contraction. Because there is a expansion joint between the first concrete plate 1 and the second concrete plate 7, when thermal expansion, the first concrete plate 1 and the second concrete plate 7 will expand to both sides respectively, at this time, the connecting structure of the fixed end comb plate 2 and the sliding side comb plate 5 allows them to slide relative to each other to adapt to this deformation, the first fixed block 9, the first connecting piece 8, the second connecting piece 11, the second fixed block 10, the third fixed block 12 and the fourth fixed block 13 work together to ensure that the fixed end comb plate 2 and the sliding side comb plate 5 can maintain relatively stable connection and smooth sliding during the expansion and contraction of the concrete plate, the guide plate 4 plays a role in guiding water flow inside the fixed end anchor plate 3 and the fixed end comb plate 2, preventing water accumulation at the expansion joint, avoiding problems such as concrete corrosion or structural damage caused by water accumulation.

[0037] It should be noted that the relational terms herein such as first and second, and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cross-slit comb plate expansion joint comprising a first concrete slab (1), characterized in that: The first concrete plate (1) is provided with a second concrete plate (7) on the right side, and is provided with a fixed end comb plate (2) on the top, which is fixedly connected with a uniformly distributed fixed end anchor plate (3) on the bottom of the left side, and is provided with a sliding side comb plate (5) on the top, which is in sliding connection with the fixed end comb plate (2), and is provided with a connecting assembly on the right side of the fixed end comb plate (2).

2. A telescopic joint for a cross-slit comb plate according to claim 1, characterized in that: The connecting assembly comprises a first fixed block (9) fixedly connected on the bottom of the right side of the fixed end comb plate (2).

3. A telescopic joint according to claim 1, wherein: The fixed end anchor plate (3) is fixedly connected with a guide plate (4) inside the fixed end comb plate (2).

4. A telescoping joint for a cross-slit comb plate according to claim 1, wherein: The sliding side comb plate (5) is fixedly connected with a sliding side anchor plate (6) on the bottom.

5. A telescopic joint for a cross-slit comb plate according to claim 2, characterized in that: One end of the first fixed block (9) is fixedly connected with a first connecting piece (8), and the right side of the first connecting piece (8) is provided with a second connecting piece (11).

6. A telescopic joint for a cross-slit comb plate according to claim 5, characterized in that: The right side top of the second connecting piece (11) is fixedly connected with a fourth fixed block (13), and the fourth fixed block (13) is fixedly connected with the sliding side comb plate (5).

7. A telescopic joint for a cross-slit comb plate according to claim 5, characterized in that: The bottom of the second connecting piece (11) is fixedly connected with a third fixed block (12), and the third fixed block (12) is fixedly connected with the top of the second concrete plate (7).

8. A telescopic joint for a cross-slit comb plate according to claim 5, characterized in that: The left side bottom of the first connecting piece (8) is fixedly connected with a second fixed block (10), and the second fixed block (10) is fixedly connected with the bottom of the fixed end comb plate (2).

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