Noise-reduction comb-shaped plate bridge expansion device capable of being subjected to multi-directional displacement adjustment

Abstract

The utility model relates to the technical field of bridge equipment, in particular to a noise-reduction comb-tooth-shaped plate bridge expansion device capable of being adjusted in a multi-direction displacement mode, which comprises a fixed comb tooth plate and a movable comb tooth plate, and the fixed comb tooth plate and the movable comb tooth plate are provided with comb tooth structures matched with each other. Longitudinal positioning blocks are vertically installed at the two ends of the fixed comb plate and the two ends of the movable comb plate, a plurality of longitudinal guide grooves are formed in the longitudinal positioning blocks, longitudinal positioning columns are installed on the fixed comb plate, and the longitudinal positioning columns are in sliding fit with the longitudinal guide grooves. According to the noise-reduction comb-shaped plate bridge expansion device capable of being adjusted in the multi-direction displacement mode, longitudinal positioning blocks installed at the two ends of the fixed comb plate and the two ends of the movable comb plate in the device and longitudinal guide grooves in the longitudinal positioning blocks are matched with longitudinal positioning columns, and stable expansion and contraction of the bridge expansion device in the longitudinal direction are achieved. A transverse positioning block installed in the middle and a transverse positioning column on the transverse positioning block are in sliding fit with the transverse guide groove, and the device is endowed with the displacement adjusting capacity in the transverse direction.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge equipment, in particular to a noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment. Background Art

[0002] In the field of bridge engineering, with the continuous increase in traffic volume and the diversification of bridge structures, the requirements for bridge expansion joints are also increasing. As a key component of bridge structures, bridge expansion joints are primarily used to accommodate deformation caused by factors such as temperature fluctuations, wind forces, and vehicle loads, ensuring smooth vehicle passage through expansion joints on the bridge deck. Traditional bridge expansion joints often suffer from limited functionality, poor adaptability, and high noise levels, making them unable to meet the high safety, comfort, and durability requirements of modern bridge engineering.

[0003] Traditional comb-tooth plate bridge expansion devices primarily achieve longitudinal expansion and contraction of the bridge through the interlaced movement of comb teeth. While simple in structure and easy to construct, they lack multi-directional adjustment capabilities. When the bridge rotates horizontally or vertically, these devices are prone to problems such as comb tooth shearing, bolt loosening, or comb tooth breakage, impacting the safety and service life of the expansion device. Furthermore, traditional expansion devices often generate considerable noise when vehicles pass through, adversely affecting driving comfort. Utility Model Content

[0004] The purpose of the present utility model is to provide a noise-reducing comb-tooth plate bridge expansion device that can be adjusted in multiple directions, so as to solve the problem raised in the above background technology that when the bridge undergoes horizontal or vertical rotation, the comb teeth are prone to twisting and shearing, bolts are loose or the comb teeth are broken, etc., which affects the safety and service life of the expansion device.

[0005] To achieve the above-mentioned purpose, the utility model provides a noise-reducing comb-tooth plate bridge telescopic device with multi-directional displacement adjustment, including a fixed comb-tooth plate and a movable comb-tooth plate, wherein the fixed comb-tooth plate and the movable comb-tooth plate are provided with matching comb-tooth structures, and longitudinal positioning blocks are vertically installed at both ends of the fixed comb-tooth plate and the movable comb-tooth plate, and a plurality of longitudinal guide grooves are opened on the longitudinal positioning blocks, and longitudinal positioning columns are installed on the fixed comb-tooth plates, and the longitudinal positioning columns slide in cooperation with the longitudinal guide grooves, and a transverse positioning block is horizontally installed in the middle of the fixed comb-tooth plate and the movable comb-tooth plate, and a plurality of transverse positioning columns are installed on the transverse positioning block, and transverse guide grooves are provided on the fixed comb-tooth plate and the movable comb-tooth plate near the transverse positioning columns, and the transverse positioning columns slide in cooperation with the transverse guide grooves.

[0006] Preferably, the bottom of the fixed comb plate is supported and fixed by a fixed seat, and the bottom of the movable comb plate is supported and fixed by a movable seat.

[0007] Preferably, a surface of the fixing seat is provided with a plurality of hollow structures.

[0008] Preferably, a first support plate is vertically mounted on one end of the fixing seat, and the top end of the first support plate is welded and fixed to the fixed comb plate.

[0009] Preferably, a groove is provided on the upper part of the movable seat, a support frame is provided in the groove, the interior of the support frame is a hollow structure, a second support plate is installed at the bottom of the support frame, a U-shaped groove is provided inside the support frame, and a horizontal positioning block is provided in the U-shaped groove.

[0010] Preferably, the top of the support frame is provided with a hole for accommodating the passage of the transverse positioning column.

[0011] Preferably, the length of the groove is greater than the length of the support frame.

[0012] Preferably, a hole for the movable seat to pass through is formed on the surface of the second support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the noise-reducing comb-tooth plate bridge expansion and contraction device with multi-directional displacement adjustment, the longitudinal positioning blocks installed at both ends of the fixed comb-tooth plate and the movable comb-tooth plate in the device and the longitudinal guide grooves thereon, cooperate with the longitudinal positioning columns to achieve stable expansion and contraction of the bridge expansion and contraction device in the longitudinal direction.

[0015] At the same time, the centrally mounted transverse positioning block and its attached transverse positioning column slide in tandem with the transverse guide groove, enabling the device to adjust its position in the transverse direction. This multi-directional position adjustment design effectively resolves issues that can easily arise with traditional comb-tooth plate bridge expansion joints when the bridge undergoes horizontal or vertical rotation, such as twisting and shearing of the comb teeth, loosening of bolts, or breakage of the comb teeth. This significantly improves the safety and service life of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the top structure of the utility model;

[0017] Figure 2 This is a side structural diagram of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the support frame in the present utility model;

[0019] The meaning of each number in the figure is:

[0020] 1. Fixed comb plate; 2. Movable comb plate; 3. Fixed seat; 31. First support plate; 4. Movable seat; 41. Groove; 5. Support frame; 51. Second support plate; 52. U-shaped groove; 6. Horizontal positioning block; 61. Horizontal positioning column; 7. Longitudinal positioning block; 71. Longitudinal guide groove; 72. Longitudinal positioning column; 8. Horizontal guide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides a noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment, such as Figure 1-Figure 3 As shown, it includes a fixed comb plate 1 and a movable comb plate 2, each of which is provided with a matching comb structure. A longitudinal positioning block 7 is vertically installed at both ends of the fixed comb plate 1 and the movable comb plate 2, and a plurality of longitudinal guide grooves 71 are provided on the longitudinal positioning block 7. A longitudinal positioning column 72 is installed on each fixed comb plate 1, and the longitudinal positioning column 72 slides in cooperation with the longitudinal guide groove 71. A transverse positioning block 6 is horizontally installed in the middle of the fixed comb plate 1 and the movable comb plate 2, and a plurality of transverse positioning columns 61 are installed on the transverse positioning block 6. Transverse guide grooves 8 are provided on the fixed comb plate 1 and the movable comb plate 2 near the transverse positioning columns 61, and the transverse positioning columns 61 slide in cooperation with the transverse guide grooves 8. The noise reduction comb plate bridge telescopic device with multi-directional displacement adjustment provided by the utility model realizes the basic telescopic function through the matching comb structure on the fixed comb plate 1 and the movable comb plate 2. At the same time, the vertically mounted longitudinal positioning blocks 7 and their longitudinal guide slots 71 at each end slide with the longitudinal positioning posts 72 on the fixed comb plate 1, providing the device with stable longitudinal telescopic adjustment capabilities. The horizontally mounted transverse positioning blocks 6 and their transverse positioning posts 61 in the middle slide with the transverse guide slots 8 on the fixed comb plate 1 and the movable comb plate 2, further enhancing the device's transverse displacement and adjustment capabilities. This design enables the telescopic device to adapt to bridge deformation in multiple directions, improving its adaptability and overall performance.

[0023] The arrangement of longitudinal positioning block 7, longitudinal positioning post 72, transverse positioning block 6, and transverse positioning post 61 not only enables multi-directional adjustment but also enhances the structural stability of the device through a sliding fit. This design ensures that the fixed comb plate 1 and the movable comb plate 2 maintain a stable relative position during extension and retraction, avoiding stress concentration and damage caused by deformation.

[0024] The telescopic device of the present invention has a clear structure and the connection relationship between the various components is simple and clear, which is convenient for processing and installation. The design of the longitudinal guide groove 71, the longitudinal positioning column 72, the transverse guide groove 8 and the transverse positioning column 61 enables the device to be accurately positioned and fixed during the processing, reducing the processing difficulty and cost. At the same time, the simple structure also facilitates installation and debugging at the construction site, improving construction efficiency.

[0025] In this embodiment, the bottom of the fixed comb plate 1 is supported and fixed by the fixed seat 3, and the bottom of the movable comb plate 2 is supported and fixed by the movable seat 4, so that the movable comb plate 2 is supported and positioned.

[0026] Specifically, the surface of the fixing seat 3 is provided with a plurality of hollow structures to reduce the overall weight of the device.

[0027] Furthermore, a first support plate 31 is vertically mounted on one end of the fixing seat 3 , and the top end of the first support plate 31 is welded and fixed to the fixed comb plate 1 to ensure the support and positioning of the fixing seat 3 .

[0028] Furthermore, a groove 41 is provided on the upper part of the movable seat 4, a support frame 5 is provided in the groove 41, the interior of the support frame 5 is a hollow structure, a second support plate 51 is installed at the bottom of the support frame 5, a U-shaped groove 52 is provided inside the support frame 5, and a horizontal positioning block 6 is provided in the U-shaped groove 52 to ensure the support positioning of the horizontal positioning block 6.

[0029] Furthermore, a hole for accommodating the transverse positioning column 61 is provided on the top of the support frame 5 , which facilitates the passage of the transverse positioning column 61 .

[0030] Furthermore, the length of the groove 41 is greater than the length of the support frame 5 , so that the movable comb plate 2 has sufficient telescopic sliding space.

[0031] Furthermore, a hole is formed on the surface of the second support plate 51 for the movable seat 4 to pass through.

[0032] During use, the present invention's multi-directionally adjustable, noise-reducing comb-shaped bridge expansion and contraction device begins when the bridge undergoes expansion and contraction deformation due to factors such as temperature changes, wind, or vehicle loads. The mating comb structures on the fixed comb plate 1 and the movable comb plate 2 begin to operate, allowing both to perform basic longitudinal expansion and contraction. Simultaneously, the vertically mounted longitudinal positioning blocks 7 and their longitudinal guide slots 71 at each end slide in conjunction with the longitudinal positioning posts 72 on the fixed comb plate 1, ensuring stable and smooth longitudinal expansion and contraction.

[0033] Furthermore, the horizontally mounted transverse positioning block 6 and its transverse positioning column 61 in the middle slide into the transverse guide slots 8 on the fixed comb plate 1 and the movable comb plate 2. This design allows the device to adjust its position in the transverse direction, further enhancing its adaptability to bridge deformation.

[0034] During operation, the fixed base 3 and movable base 4 respectively support the fixed comb plate 1 and movable comb plate 2. The hollow structure on the surface of the fixed base 3 helps reduce the overall weight of the device, while the first support plate 31 ensures that the fixed base 3 firmly supports the fixed comb plate 1.

[0035] A support frame 5 is mounted within the recess 41 at the top of the movable seat 4. The interior of the support frame 5 is hollow, reducing weight while providing sufficient support strength. A second support plate 51 is mounted at the bottom of the support frame 5, while a U-shaped groove 52 is positioned within the support frame 5 to accommodate and support the transverse positioning block 6. A hole is also provided at the top of the support frame 5 for the passage of a transverse positioning post 61, facilitating its sliding during extension and retraction.

[0036] The length of the groove 41 is designed to be greater than that of the support frame 5 to ensure that the movable comb plate 2 has sufficient sliding space during the extension and retraction process. At the same time, the surface of the second support plate 51 is also provided with a hole for the movable seat 4 to pass through. This design not only ensures the stability of the structure but also facilitates the installation and commissioning of the device.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing comb-shaped plate bridge expansion and contraction device capable of multi-directional displacement adjustment, comprising a fixed comb plate (1) and a movable comb plate (2), characterized in that: The fixed comb plate (1) and the movable comb plate (2) are provided with matched comb tooth structures, and longitudinal positioning blocks (7) are vertically installed at both ends of the fixed comb plate (1) and the movable comb plate (2), and a plurality of longitudinal guide grooves (71) are provided on the longitudinal positioning blocks (7). The fixed comb plate (1) is provided with longitudinal positioning columns (72), and the longitudinal positioning columns (72) are slidably matched with the longitudinal guide grooves (71). A transverse positioning block (6) is horizontally installed in the middle of the fixed comb plate (1) and the movable comb plate (2), and a plurality of transverse positioning columns (61) are installed on the transverse positioning block (6). Transverse guide grooves (8) are provided near the transverse positioning columns (61) on the fixed comb plate (1) and the movable comb plate (2), and the transverse positioning columns (61) are slidably matched with the transverse guide grooves (8).

2. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 1 is characterized in that: The bottom of the fixed comb plate (1) is supported and fixed by a fixed seat (3), and the bottom of the movable comb plate (2) is supported and fixed by a movable seat (4).

3. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 2 is characterized in that: The surface of the fixing seat (3) is provided with a plurality of hollow structures.

4. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 2 is characterized in that: A first support plate (31) is vertically mounted on one end of the fixing seat (3), and the top end of the first support plate (31) is fixed to the fixed comb plate (1) by welding.

5. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 2 is characterized in that: A groove (41) is provided on the upper portion of the movable seat (4), a support frame (5) is provided in the groove (41), the interior of the support frame (5) is a hollow structure, a second support plate (51) is installed at the bottom of the support frame (5), a U-shaped groove (52) is provided in the interior of the support frame (5), and a transverse positioning block (6) is provided in the U-shaped groove (52).

6. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 5 is characterized in that: The top of the support frame (5) is provided with a hole for accommodating the transverse positioning column (61) to pass through.

7. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 5 is characterized in that: The length of the groove (41) is greater than the length of the support frame (5).

8. The noise-reducing comb-shaped plate bridge expansion device capable of multi-directional displacement adjustment according to claim 5 is characterized in that: A hole for the movable seat (4) to pass through is provided on the surface of the second support plate (51).

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