Multi-directional displacement self-adapting comb plate expansion joint

Abstract

The utility model discloses a multi -way displacement self -adaptation comb tooth board expansion joint, it includes setting two bridge opposite one side rubber arc plate, the left and right sides of bridge top all are fixedly connected with anchor bar, the top of right side anchor bar is provided with fixed tooth plate, the left side fixedly connected with fixed comb tooth of fixed tooth plate, the bottom fixedly connected with sliding plate of fixed tooth plate, the top of left side anchor bar is provided with movable tooth plate, the right side fixedly connected with movable comb tooth of movable tooth plate, fixed comb tooth and movable comb tooth are adapted, the bottom fixedly connected with a plurality of limit track of movable tooth plate, the left side fixedly connected with moving block of sliding plate top, the utility model discloses through the cooperation of fixed comb tooth, sliding plate and limit track, makes movable comb tooth to slide on the top of sliding plate, in turn makes moving block to the limiting effect of limit track, guarantees movable tooth plate, movable comb tooth when moving more stable.

Description

Technical Field

[0001] This utility model belongs to the field of bridge expansion joint technology, and in particular relates to multi-directional displacement adaptive comb plate expansion joint. Background Technology

[0002] Traditional comb-tooth expansion joints mainly consist of comb-shaped steel plates, stainless steel sliding plates, neoprene rubber plates, and anchor bolts. The comb-shaped steel plates have a unique anti-slip groove shape, with the left and right extensions of the bridge deck interlocking. They have high structural rigidity and can withstand large horizontal displacements. However, they mostly adopt a unidirectional sliding design, which can only compensate for longitudinal displacement and is difficult to cope with lateral, vertical, and combined directional displacements. This can easily lead to stress concentration, component wear, or sealing failure.

[0003] Multi-directional displacement adaptive comb plate expansion joints, with their ability to flexibly adapt to the multi-dimensional deformation of bridges, can well adapt to the thermal expansion and contraction of bridges. Compared with traditional comb plate expansion joints, they have less bumps and make vehicle driving more stable. Therefore, we need to design multi-directional displacement adaptive comb plate expansion joints to provide more accurate path guidance, maintain the correct movement trajectory, and improve the operational reliability and service life of expansion joints. Utility Model Content

[0004] The purpose of this invention is to provide a multi-directional displacement adaptive comb plate expansion joint, which has the advantages of providing more accurate path guidance for the displacement of the comb plate, maintaining the correct motion trajectory, and improving the operational reliability and service life of the expansion joint, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a multi-directional displacement adaptive comb plate expansion joint, which includes two rubber arc-shaped plates with two bridges facing each other. Anchor bars are fixedly connected to the left and right sides of the top of the bridge. A fixed tooth plate is set at the top of the right anchor bar. A fixed comb tooth is fixedly connected to the left side of the fixed tooth plate. A sliding plate is fixedly connected to the bottom of the fixed tooth plate. A movable tooth plate is set at the top of the left anchor bar. A movable comb tooth is fixedly connected to the right side of the movable tooth plate. The fixed comb tooth and the movable comb tooth are adapted to each other. Multiple limiting rails are fixedly connected to the bottom of the movable tooth plate. A moving block is fixedly connected to the left side of the top of the sliding plate. The limiting rails and the moving block are slidably connected. Rubber plates are installed on the two fixed plates.

[0006] Preferably, multiple fasteners are fixedly connected to both the left and right sides of the rubber arc plate, and one side of each of the multiple fasteners is fixedly connected to the anchor bar.

[0007] Preferably, a fixing plate is fixedly connected to both the left side of the bottom of the fixed toothed plate and the right side of the bottom of the movable toothed plate.

[0008] Preferably, both the fixed toothed plate and the movable toothed plate are provided with a reinforcing frame at their bottoms, and the two reinforcing frames are fixedly connected to the fixed plate on opposite sides, and the two reinforcing frames are fixedly connected to two anchor bars.

[0009] Preferably, a rubber pad is installed at the gap where the fixed comb teeth and the movable comb teeth engage, and the limiting track is in the shape of a transverse groove.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses the combination of fixed comb teeth, sliding plate and limiting track to make the movable comb teeth slide on the top of the sliding plate, which in turn makes the moving block limit the limiting track, ensuring that the movable tooth plate and movable comb teeth move more smoothly. This achieves the purpose of providing more accurate path guidance for the displacement of the comb tooth plate, maintaining the correct movement trajectory, and improving the reliability and service life of the expansion joint.

[0012] 2. By setting fasteners, this utility model can prevent the rubber arc plate from deforming within a certain range with structural deformation when factors such as temperature changes and vehicle loads cause expansion and displacement. This will maintain a sealed state and prevent the waterproof effect from being lost due to minor structural changes.

[0013] 3. This utility model uses a limiting track with a transverse clamping groove. The transverse clamping groove of the limiting track can accurately limit the transverse movement range of the moving block, ensuring that the moving block moves on the specified path, preventing deviation and shaking, and ensuring the accurate relative position of the expansion joint of the multi-directional displacement adaptive comb plate. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0016] Figure 2 This is a front view schematic diagram of one embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the anchor bar and rubber plate according to one embodiment of the present utility model;

[0018] Figure 4 This is a perspective view of a skateboard and a reinforcing frame according to an embodiment of the present invention;

[0019] Figure 5This is a bottom-view perspective view of the fixing plate and the sliding plate according to an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Bridge, 2. Rubber arc plate, 3. Fastener, 4. Anchor bar, 5. Fixed tooth plate, 6. Fixed comb tooth, 7. Fixed plate, 8. Slide plate, 9. Movable tooth plate, 10. Movable comb tooth, 11. Reinforced frame, 12. Limiting track, 13. Moving block, 14. Rubber plate, 15. Rubber pad. Detailed Implementation

[0022] In the following description, embodiments of the multi-directional displacement adaptive comb plate expansion joint of the present invention will be described with reference to the accompanying drawings.

[0023] Figure 1-5 This invention illustrates a multi-directional displacement adaptive comb-tooth plate expansion joint according to an embodiment of the present invention. It includes two rubber arc-shaped plates 2 facing each other on opposite sides of two bridges 1. Multiple fasteners 3 are fixedly connected to both sides of the rubber arc-shaped plates 2. One side of each fastener 3 is fixedly connected to an anchor bar 4. Through the fasteners 3, when expansion or displacement occurs due to factors such as temperature changes and vehicle loads, the fasteners 3 secure the rubber arc-shaped plates 2 to both sides, allowing them to deform within a certain range with structural deformation, maintaining a continuous seal and preventing loss of waterproofing effect due to minor structural changes. Anchor bars 4 are fixedly connected to both sides of the top of the bridges 1. A fixed toothed plate 5 is located at the top of the right anchor bar 4. Fixed comb teeth 6 are fixedly connected to the left side of the fixed toothed plate 5. Fixed plates 7 are fixedly connected to the left side of the bottom of the fixed toothed plate 5 and the right side of the bottom of the movable toothed plate 9. A sliding plate 8 is fixedly connected to the bottom of the fixed toothed plate 5. A movable toothed plate 9 is located at the top of the left anchor bar 4. Movable comb teeth 10 are fixedly connected to the right side of the movable tooth plate 9. Fixed comb teeth 6 are adapted to the movable comb teeth 10. Reinforcing frames 11 are provided at the bottom of both the fixed tooth plate 5 and the movable tooth plate 9. The two reinforcing frames 11 are fixedly connected to the fixed plate 7 on the opposite side. The two reinforcing frames 11 are fixedly connected to the two anchor bars 4. Multiple limiting rails 12 are fixedly connected to the bottom of the movable tooth plate 9. A moving block 13 is fixedly connected to the left side of the top of the slide plate 8. The limiting rails 12 and the moving block 13 are slidably connected. Rubber plates 14 are installed on the two fixed plates 7. Rubber pads 15 are installed at the gap where the fixed comb teeth 6 and the movable comb teeth 10 engage. The limiting rails 12 are in the shape of transverse grooves. By setting the limiting rails 12 as transverse grooves, the transverse grooves of the limiting rails 12 can accurately limit the transverse movement range of the moving block 13, ensuring that the moving block 13 moves on the specified path, preventing deviation and shaking, and ensuring the accurate relative position of the expansion joint of the multi-directional displacement adaptive comb plate.

[0024] Working principle: When this utility model is in use, when the user causes expansion and contraction due to factors such as traffic load, the movable toothed plate 9, movable comb teeth 10, and limiting rail 12 move on the sliding plate 8. At the same time, the limiting rail 12 slides on the surface of the moving block 13, limiting the moving block 13 and ensuring that the limiting rail 12 will not shift its position on the surface of the moving block 13 when sliding. The rubber arc plate 2, rubber plate 14, and rubber pad 15 elastically deform to absorb and disperse deformation energy, adapt to the expansion and contraction requirements of the bridge, prevent cracks and damage due to excessive deformation, and maintain the continuity and flatness of the bridge. The anchoring bar 4 and the reinforcing frame 11 firmly fix the fixed toothed plate 5 and movable toothed plate 9 to the bridge 1, ensuring the stability and safety of the expansion joint under various loads. The fixed comb teeth 6 and movable comb teeth 10 play a guiding role, ensuring that the beam remains relatively stable during expansion and contraction and avoiding displacement. The rubber plate 14 can prevent moisture and debris from entering the expansion joint.

[0025] In summary, this multi-directional displacement adaptive comb plate expansion joint, through the coordinated use of the fixed comb teeth 6, the sliding plate 8, and the limiting track 12, allows the movable comb teeth 10 to slide on top of the sliding plate 8. This, in turn, causes the moving block 13 to limit the movement of the limiting track 12, ensuring that the movable comb plate 9 and the movable comb teeth 10 move more smoothly. This achieves the goal of providing more accurate path guidance for the displacement of the comb plate, maintaining the correct movement trajectory, and improving the reliability and service life of the expansion joint.

Claims

1. A multi-directional displacement adaptive comb-tooth plate expansion joint, characterized in that, The system includes two rubber arc plates (2) facing each other on two sides of the bridge (1). Anchor bars (4) are fixedly connected to the top of the bridge (1) on both the left and right sides. A fixed tooth plate (5) is set on the top of the right anchor bar (4). A fixed comb tooth (6) is fixedly connected to the left side of the fixed tooth plate (5). A sliding plate (8) is fixedly connected to the bottom of the fixed tooth plate (5). A movable tooth plate (9) is set on the top of the left anchor bar (4). A movable comb tooth (10) is fixedly connected to the right side of the movable tooth plate (9). The fixed comb tooth (6) and the movable comb tooth (10) are adapted to each other. A plurality of limiting rails (12) are fixedly connected to the bottom of the movable tooth plate (9). A moving block (13) is fixedly connected to the top left side of the sliding plate (8). The limiting rails (12) and the moving block (13) are slidably connected. A fixed plate (7) is fixedly connected to the bottom left side of the fixed tooth plate (5) and the bottom right side of the movable tooth plate (9). A rubber plate (14) is installed on the two fixed plates (7).

2. The multi-directional displacement adaptive comb plate expansion joint according to claim 1, characterized in that, Multiple fasteners (3) are fixedly connected to both sides of the rubber arc plate (2), and one side of each of the multiple fasteners (3) is fixedly connected to the anchor bar (4).

3. The multi-directional displacement adaptive comb plate expansion joint according to claim 2, characterized in that, The bottom of both the fixed toothed plate (5) and the movable toothed plate (9) is provided with a reinforcing frame (11). The two reinforcing frames (11) are fixedly connected to the fixed plate (7) on opposite sides, and the two reinforcing frames (11) are fixedly connected to the two anchor bars (4).

4. The multi-directional displacement adaptive comb plate expansion joint according to claim 3, characterized in that, A rubber pad (15) is installed at the gap where the fixed comb tooth (6) and the movable comb tooth (10) engage, and the limiting track (12) is in the shape of a transverse groove.

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