Enhanced comb tooth type vibration and noise reduction maintenance-free bridge expansion device
The comb-shaped tooth plate structure with staggered steel bars and anchor steel plates solves the problem of the bridge expansion device being easily damaged under vehicle loads, improves the anchoring performance and durability, reduces noise, simplifies construction and maintenance, and achieves a maintenance-free effect.
Patent Information
- Application Number
- CN202422661698.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Existing bridge expansion devices are prone to loosening under vehicle loads, and are prone to fatigue failure due to high welding stress, resulting in damage, affecting driving safety and causing high noise.
The use of staggered embedded steel bars and cross steel bars, reinforced anchoring steel plates and beam body anchoring, combined with a non-welded comb-shaped tooth plate structure, equipped with T-shaped support legs and water-stop devices, improves anchoring performance and durability, and facilitates installation and maintenance through modular design.
The anchoring performance and durability of the bridge expansion device are enhanced, the noise is reduced, the construction and maintenance difficulty are simplified, and the maintenance-free function is achieved.
Smart Images
Figure CN223458671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of maintaining bridge expansion device, concretely is a kind of reinforced comb tooth type vibration reduction noise maintenance-free bridge expansion device. BACKGROUND
[0002] It is known that bridge expansion device is the important component of bridge, is to make vehicle smoothly through bridge deck and meet the needs of bridge superstructure deformation, the general term of various devices that are set at bridge expansion joint by rubber and steel components etc..The performance of bridge expansion device is directly influenced to the safety of bridge road.
[0003] With the development of our country's transportation industry, traffic flow and vehicle load increase day by day, and modern extreme abnormal weather gradually increases, more and more expansion joints often appear damaged. The main reasons for damage are: 1, comb tooth type expansion device usually adopts bolt anchoring, under the repeated impact of vehicle load, anchor bolt is prone to loose and fall off, leading to expansion device damage, which will affect driving safety;2, comb tooth type expansion device also has the whole anchoring type expansion device formed by welding, adopts the way of welding anchoring, and the welding stress is large, and the expansion device is easy to deform, and the weld is under the action of vehicle load alternating stress, very easy to fatigue failure, cause expansion device damage, therefore we propose a kind of reinforced comb tooth type vibration reduction noise maintenance-free bridge expansion device to solve the above problems. CONTENT OF UTILITY MODEL
[0004] (I) technical problem solved
[0005] In view of the deficiencies of prior art, the utility model provides a kind of reinforced comb tooth type vibration reduction noise maintenance-free bridge expansion device.
[0006] (II) technical scheme
[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme: reinforced comb tooth type vibration reduction noise maintenance-free bridge expansion device, including two beam bodies, the middle part of two beam bodies is provided with several embedded steel bars and cross steel bars, several embedded steel bars and cross steel bars are staggered, the top middle part of several embedded steel bars and cross steel bars is provided with several reinforced anchor steel plates, the top of several reinforced anchor steel plates of two beam bodies is provided with first reinforced comb tooth plate and second reinforced comb tooth plate respectively, the middle part of first reinforced comb tooth plate is provided with first dustproof slide plate, the middle part of second reinforced comb tooth plate is provided with second dustproof slide plate, the bottom of first dustproof slide plate and second dustproof slide plate is provided with auxiliary support steel plate, water stop device is arranged between two beam bodies.
[0008] Further, the improvement of the utility model has, reinforced anchor steel plate and beam embedded steel bar and cross steel bar are anchored.
[0009] Further, the improvement of the utility model has that the water stop belt in the water stop device is made of elastic rubber material or thin stainless steel plate.
[0010] On the basis of the above, the improvement of the utility model has that the first and second enhanced comb-shaped tooth plates are both provided with T-shaped supporting legs.
[0011] Further, the improvement of the utility model has that the beam body, embedded steel bars, cross steel bars, enhanced anchoring steel plates, the first and second enhanced comb-shaped tooth plates, the first dustproof sliding plate, auxiliary supporting steel plates and the edges of the water stop device are all provided with rounded corners.
[0012] (Three) beneficial effects
[0013] Compared with the prior art, the utility model provides the enhanced comb-tooth type vibration and noise reduction maintenance-free bridge expansion device, and has the following beneficial effects:
[0014] The enhanced comb-tooth type vibration and noise reduction maintenance-free bridge expansion device is provided with a beam body, embedded steel bars, cross steel bars, enhanced anchoring steel plates, the first and second enhanced comb-shaped tooth plates, the first dustproof sliding plate, auxiliary supporting steel plates and a water stop device, so that the enhanced comb-tooth type vibration and noise reduction maintenance-free bridge expansion device can be integrally installed or modularly installed. The modularized expansion device can be divided into multiple parts, so that production and transportation are simple, construction difficulty is reduced, and the device can be repaired and replaced in sections in the later period. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is a schematic view of the shaft side structure of the utility model;
[0016] Fig. 2 It is a schematic view of the front structure of the utility model;
[0017] Fig. 3 It is a schematic view of the local shaft side structure of the utility model.
[0018] In the drawing: 1, embedded steel bar; 2, cross steel bar; 3, enhanced anchoring steel plate; 4, first enhanced comb-shaped tooth plate; 5, first dustproof sliding plate; 6, second dustproof sliding plate; 7, auxiliary supporting steel plate; 8, water stop device; 9, second enhanced comb-shaped tooth plate. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0020] Please refer to Figs. 1-3 The utility model discloses a reinforced comb tooth type damping and noise reduction maintenance-free bridge expansion device, including two beam bodies, the middle part of two beam bodies all is provided with a plurality of embedded steel bars 1 and cross steel bars 2, a plurality of embedded steel bars 1 and cross steel bars 2 are staggered, and the top middle part of a plurality of embedded steel bars 1 and cross steel bars 2 is provided with a plurality of reinforced anchor steel plates 3, the reinforced anchor steel plate 3 is anchored with the embedded steel bar 1 and cross steel bar 2 of beam body, and finally the expansion device and the beam body are anchored into a whole through concrete, the anchoring performance and durability of the expansion device are enhanced, the top of a plurality of reinforced anchor steel plates 3 of two beam bodies is provided with first reinforced comb tooth plate 4 and second reinforced comb tooth plate 9 respectively, first reinforced comb tooth plate 4 and second reinforced comb tooth plate 9 all are provided with T type support leg, the auxiliary support steel plate 77 is a fender, which can be used as the formwork of concrete grouting, and can be used as the auxiliary support structure of the comb tooth plate, the middle part of first reinforced comb tooth plate 4 is provided with first dustproof sliding plate 5, and the middle part of second reinforced comb tooth plate 9 is provided with second dustproof sliding plate 6, the bottom of first dustproof sliding plate 5 and second dustproof sliding plate 6 all is provided with auxiliary support steel plate 7, and the water stop device 8 is arranged between two beam bodies, and the water stop belt in the water stop device 8 is made of elastic rubber material or thin stainless steel plate, and the utility model has better practical effect.
[0021] In conclusion, the reinforced comb tooth type damping and noise reduction maintenance-free bridge expansion device is formed by cutting a whole type π steel, and is free of welding and bolt connection, so that the whole performance is good, and the durability is good.
[0022] The reinforced comb tooth plate body comprises a mortise and tenon structure part, the mortise and tenon structure part is used for forming a mortise and tenon type anchoring structure with the reinforced anchor steel plate 3, the mortise and tenon type structure part has greater area contact with the anchor plate, and the stability is better, and the anchoring performance is stronger than that of a traditional steel bar anchor ring structure or an ordinary anchor plate structure.
[0023] The first and second enhanced comb tooth plates 4 and 9 comprise a "t" shaped support leg which extends into the lower part of the comb tooth plate, on the one hand, to strengthen the support of the comb tooth plate, making the structure more durable, avoiding the common problem that the comb tooth structure is easily damaged, on the other hand, to increase the pouring width of the concrete, the concrete is poured flush with the edge of the "t" shaped support leg, to reduce the pulling force when driving, thereby improving the tensile and crack resistance of the concrete in the telescopic device, and further improving the impact resistance and durability of the telescopic device.
[0024] The first and second enhanced comb tooth plates 4 and 9 are provided with an arc-shaped inclined surface at the root of the comb tooth, and a chamfered inclined surface at the head of the comb tooth, which can push the debris obliquely upward during the forward pushing process, facilitating the removal of the debris, and eliminating the air blast sound caused by air pressure during vehicle driving, thereby reducing noise, so that the device has a maintenance-free function. The device can be installed as a whole or modularly, and the modular telescopic device can be divided into multiple parts, which is simple in production and transportation, and reduces the construction difficulty. In the later maintenance and replacement, segmented maintenance and replacement can be performed.
[0025] In order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual size of the product.
[0026] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the present application should be understood as the general meaning understood by the general technical personnel in the field to which the present application belongs. The words indicating the relative direction or position relationship in the description of the present application, such as "up", "down", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like, are only used to indicate the relative direction or position relationship, and not to imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the described object changes, the relative position relationship may also change accordingly, therefore it cannot be understood as a limitation on the present application. The "first", "second", "third" and the like used in the description of the present application are only for the purpose of description, to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "an" or "the" and the like used in the description of the present application should not be understood as an absolute limitation on the quantity, but should be understood as the existence of at least one. The "including" or "containing" and the like used in the description of the present application means that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.
[0027] In addition, it needs to be explained that, unless otherwise explicitly specified and limited, the "installation", "connection", "connection" and similar words used in the description of the application should be understood broadly, for example, the connection can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements, and those skilled in the art can understand the specific meaning of the application according to the specific circumstances.
[0028] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A reinforced comb tooth type shock-absorbing and noise-reducing maintenance-free bridge expansion device, comprising two beam bodies, characterized in that: The middle part of the two beam bodies is provided with a plurality of embedded steel bars (1) and cross steel bars (2), the plurality of embedded steel bars (1) and cross steel bars (2) are arranged in a staggered manner, the top middle part of the plurality of embedded steel bars (1) and cross steel bars (2) is provided with a plurality of reinforced anchor steel plates (3), the top part of the plurality of reinforced anchor steel plates (3) of the two beam bodies is respectively provided with a first reinforced comb-shaped tooth plate (4) and a second reinforced comb-shaped tooth plate (9), the middle part of the first reinforced comb-shaped tooth plate (4) is provided with a first dustproof sliding plate (5), the middle part of the second reinforced comb-shaped tooth plate (9) is provided with a second dustproof sliding plate (6), the bottom part of the first dustproof sliding plate (5) and the second dustproof sliding plate (6) is provided with an auxiliary supporting steel plate (7), and the two beam bodies are provided with a water stop device (8).
2. The enhanced comb-typed shock and noise absorbing maintenance-free bridge expansion joint according to claim 1, characterized in that: The reinforced anchor steel plate (3) is anchored with the embedded steel bar (1) and the cross steel bar (2) of the beam body.
3. The enhanced comb-typed shock and noise absorbing maintenance-free bridge expansion joint according to claim 1, wherein: The water stop belt in the water stop device (8) is made of elastic rubber material or thin stainless steel plate.
4. The enhanced comb-typed shock and noise absorbing maintenance-free bridge expansion joint according to claim 1, wherein: The first reinforced comb-shaped tooth plate (4) and the second reinforced comb-shaped tooth plate (9) are provided with T-shaped supporting legs.
5. The enhanced comb-typed shock and noise absorbing maintenance-free bridge expansion joint according to claim 1, wherein: The edges of the beam body, the embedded steel bar (1), the cross steel bar (2), the reinforced anchor steel plate (3), the first reinforced comb-shaped tooth plate (4), the second reinforced comb-shaped tooth plate (9), the first dustproof sliding plate (5), the auxiliary supporting steel plate (7) and the water stop device (8) are provided in a round corner shape.