High-damping concrete waterproof and dustproof expansion joint device

Abstract

The utility model provides a kind of high-damping concrete waterproof dustproof expansion joint device, comprising: two concrete blocks, it is distributed on two the concrete foundation, two the concrete block is provided with two mutually corresponding anchorages;Two anchorage rib structures are respectively arranged in two the concrete foundation and two the concrete block and are connected with two the anchorage, every the anchorage rib structure includes N1 hoop, N2 longitudinal reinforcement and N3 longitudinal reinforcement, the N2 longitudinal reinforcement is poured in the concrete foundation.The utility model has the beneficial effects: anchorage rib structure is combined with concrete block to stabilize anchorage system, greatly enhance the load-carrying capacity and crack resistance of expansion joint, effectively prevent the displacement, loosening and disease problems commonly seen in traditional expansion joint;Through the synergistic effect of support rod, toothed plate and damping shock absorber, expansion joint can flexibly adapt to deformation, while damping shock absorber buffers impact force, reduces driving noise and jolt feeling.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and in particular to a high-damping concrete waterproof and dustproof expansion joint device. Background Technology

[0002] In the field of road engineering, expansion joint structures are reserved, and common treatment methods include, but are not limited to, using materials such as rubber strips and liquid waterstops to fill the expansion joints.

[0003] While traditional slab expansion joint materials can meet the road surface expansion and contraction requirements to a certain extent, they have many drawbacks. The joint sealant is susceptible to aging, cracking, or peeling due to weather conditions, allowing rainwater and debris to infiltrate, affecting structural expansion and contraction and soaking the base layer. Simultaneously, its load-bearing capacity is limited; the dowel bars and sleeves are prone to corrosion or blockage, hindering sliding and reducing load-bearing capacity, leading to corner cracking, slab breakage, misalignment, and other defects. The high incidence of defects means that after sealing failure, mud, sand, and moisture enter the joint, easily causing voids at the bottom of the slab, uneven settlement of the slabs, and misalignment damage.

[0004] To address the aforementioned technical issues, a high-damping concrete waterproof and dustproof expansion joint device is proposed. Utility Model Content

[0005] In view of this, the present invention provides a high-damping concrete waterproof and dustproof expansion joint device to solve the technical problem of poor durability of expansion joint structures in the prior art.

[0006] An embodiment of this utility model provides a high-damping concrete waterproof and dustproof expansion joint device for use in the gap formed between two concrete foundations, comprising: Two concrete blocks are distributed on two concrete foundations. Two corresponding anchors are provided in the two concrete blocks. The two anchors are respectively set in the two concrete blocks so that the expansion joint device can be installed synchronously with the concrete foundation project. Two anchoring bar structures are respectively set in the two concrete foundations and the two concrete blocks and connected to the two anchoring members. Each anchoring bar structure includes N1 stirrups, N2 longitudinal bars and N3 longitudinal bars. The N2 longitudinal bars are cast in the concrete foundation and the N3 longitudinal bars are cast in the concrete block. The N1 stirrups are wrapped around the N2 longitudinal bars and the N3 longitudinal bars, and the two N1 stirrups are respectively connected to the two anchoring members. A telescopic structure, connected to one of the anchors and movably disposed relative to the other anchor, conceals the gap formed by the two concrete foundations. The telescopic structure includes a support rod, a toothed plate, and a damping support. The support rod is connected to one of the anchors and the toothed plate to bear the load of the toothed plate. The other anchor, located away from the support rod, has a notch at its upper part. The damping support is disposed within the notch. The end of the toothed plate away from the support rod abuts against the damping support. The toothed plate protrudes above the concrete block, and the load is distributed through the damping support and the support rod.

[0007] Furthermore, a support member is provided at the notch. The support member is L-shaped, and the right-angle end of the support member abuts against the apex corner of the notch. One end of the support member is connected to the base of the damping shock absorber, so that the damping shock absorber is not easy to move.

[0008] Furthermore, a dustproof layer is provided on the upper part of the damping and shock-absorbing support. The dustproof layer covers and shields the gap between the two concrete foundations and the notch, in order to reduce dust falling into the gap.

[0009] Furthermore, a waterproof layer is connected between the two anchors, which covers the gap between the two concrete foundations.

[0010] Furthermore, each of the anchors is trapezoidal in shape, and a through-hole is provided at the acute angle end of each anchor, with two N3 longitudinal ribs passing through one of the through-holes.

[0011] Furthermore, the N1 stirrup is shaped like a mouth, and both ends are U-shaped and wrap around the two N2 longitudinal bars.

[0012] Furthermore, both ends of the waterproof layer extend to the lower part of the two anchors, so that the waterproof layer is pressed down by the two anchors.

[0013] Furthermore, the distance from one end of the toothed plate to the notch end is greater than the gap between the two concrete blocks.

[0014] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The high-damping concrete waterproof and dustproof expansion joint device of this utility model, through the combination of the anchoring bar structure and the concrete block to stabilize the anchoring system, greatly enhances the load-bearing capacity and crack resistance of the expansion joint, and effectively prevents the displacement, loosening and defects common in traditional expansion joints; through the synergistic effect of the support rod, toothed plate and damping shock-absorbing bearing, the expansion joint can flexibly adapt to deformation, while the damping shock-absorbing bearing buffers the impact force, reducing driving noise and bumps; the double protection of the dustproof layer and the waterproof layer effectively prevents dust and rainwater from intruding, avoiding corrosion of internal components and soaking of the base layer, fundamentally improving the durability of the expansion joint and reducing maintenance costs. Overall, this device effectively solves many problems of traditional expansion joints, reduces the occurrence of defects, lowers maintenance costs, and ensures the long-term stable operation of roads, with significant social and economic benefits and broad market application prospects. Attached Figure Description

[0015] Figure 1 This is a top view of the concrete foundation of the high-damping concrete waterproof and dustproof expansion joint device of this utility model; Figure 2 This utility model relates to a high-damping concrete waterproof and dustproof expansion joint device. Figure 1 Cross-sectional view.

[0016] In the diagram: 1. Concrete foundation; 2. Concrete block; 3. Anchor; 4. Through-hole; 5. Support rod; 6. Toothed plate; 7. Support component; 8. Damping and vibration reduction bearing; 9. Dustproof layer; 10. Waterproof layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0018] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0019] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0021] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please refer to Figure 1 and Figure 2 The present invention provides a high-damping concrete waterproof and dustproof expansion joint device, comprising two concrete foundations 1, two concrete blocks 2, anchors 3, anchoring bar structure and expansion structure.

[0023] Among them, the concrete block 2 is made of C50 steel fiber concrete with high strength and strong crack resistance. It is set on the two concrete foundations 1 respectively, and the anchor 3 is pre-embedded in the corresponding position inside.

[0024] Each anchoring bar structure includes N1 stirrups, N2 longitudinal bars, and N3 longitudinal bars. The anchor 3 is trapezoidal, with a through-hole 4 at its acute end for passing through the N3 longitudinal bar 13, thus achieving a tight connection with the anchoring bar structure. The N2 longitudinal bar 12 is cast in the concrete foundation 1, and the N3 longitudinal bar 13 is cast in the concrete block 2. The N1 stirrup 11 is mouth-shaped with both ends U-shaped and wraps around the N2 longitudinal bar 12, hugging the exterior of both the N2 and N3 longitudinal bars 13. Both ends are connected to the anchor 3, forming a stable anchoring system to ensure that the device remains stable when bearing vehicle loads and will not shift or loosen.

[0025] In this embodiment, the telescopic structure is connected to one anchor 3 and can move relative to another anchor 3, thereby effectively accommodating the expansion and contraction deformation between the concrete foundations 1. The telescopic structure includes a support rod 5, a toothed plate 6, and a damping shock absorber 8.

[0026] This design also allows the expansion joint device to be divided into two parts and constructed simultaneously with the single-sided concrete foundation 1, without having to install the expansion joint device after both sides of the concrete foundation 1 are completed, thus improving construction efficiency to a certain extent.

[0027] One end of the support rod 5 is fixedly connected to the anchor 3, and the other end is connected to the toothed plate 6, providing support for the toothed plate 6, bearing its load, and ensuring the stability of the toothed plate 6 when vehicles pass.

[0028] It should be noted that the end of the toothed plate 6 away from the support rod 5 extends above another anchor 3 and abuts against the damping support 8 installed in the notch of the anchor 3.

[0029] The damping bearing 8 has shock absorption performance, which can buffer the impact force and absorb vibration energy when the vehicle passes through the expansion joint, reduce the vehicle's bumpy feeling and reduce driving noise. At the same time, it also works in conjunction with the support rod 5 to reasonably distribute the load and avoid excessive stress concentration at a certain point, thereby reducing the risk of cracks, misalignment and other defects in the expansion joint and effectively protecting the road structure.

[0030] To enhance the stability of the device, an L-shaped support 7 is specially provided at the notch. The right-angle end of the support 7 fits tightly against the apex of the notch, and one end is connected to the base of the damping shock absorber 8, providing additional support for the damping shock absorber 8 and preventing it from shifting or shaking under the impact force generated by frequent vehicle driving, ensuring that the expansion joint maintains a good working condition during long-term use.

[0031] Considering the need for waterproofing and dustproofing, a dustproof layer 9 is installed on the upper part of the damping shock absorber 8. This dustproof layer 9 can tightly cover and shield the gap and opening between the two concrete foundations 1, effectively preventing dust, gravel and other debris from falling into the expansion joint.

[0032] This not only prevents debris from affecting the normal expansion and contraction function of the expansion joint, but also avoids dust mixing with rainwater to form mud, which can corrode and damage the components inside the expansion joint, greatly extending the service life of the expansion joint and reducing the frequency and cost of maintenance.

[0033] In an optional embodiment, a waterproof layer 10 is connected between the two anchors 3. This waterproof layer is made of a flexible waterproof material and can fit tightly to the shape of the expansion joint to form a reliable waterproof barrier.

[0034] Specifically, the two ends of the waterproof layer 10 are cleverly extended to the lower part of the anchor 3, and are firmly fixed under the downward pressure of the anchor 3, so as to maintain good waterproof performance even under long-term vehicle rolling and rain erosion.

[0035] It can effectively prevent rainwater from seeping into the expansion joint and between the concrete foundation, preventing rainwater from soaking the base layer and causing defects such as bottom voids and uneven settlement of the slab, thus fundamentally improving the durability of the expansion joint and even the entire road structure.

[0036] In actual construction, firstly, expansion joints need to be precisely reserved between adjacent concrete pavement slabs to provide suitable space for the installation of expansion joint devices. Next, concrete foundation 1 is poured, and N2 longitudinal reinforcement 12 is pre-embedded in the foundation. Trapezoidal anchors 3 are installed at designated positions on concrete blocks 2, ensuring that the through-hole 4 at its acute angle is accurately aligned with N3 longitudinal reinforcement 13 to complete the anchoring connection of the reinforcement. Then, the expansion structure is installed, with the toothed plate 6 tightly connected to the support rod 5. The support rod 5 is fixed on the anchor 3. An L-shaped support 7 and damping shock absorber 8 are installed in the notch of another anchor 3, and the end of the toothed plate 6 away from the support rod 5 is abutted against the damping shock absorber 8 to ensure that the expansion structure can expand and contract flexibly and has good shock absorption performance. Finally, the protective layers are constructed in sequence. First, the waterproof layer 10 is installed between the two anchors 3, ensuring that its two ends are tightly fixed to the lower part of the anchor 3. Then, the dustproof layer 9 is laid to completely cover the damping shock absorber 8 and the notch position, providing all-round protection for the expansion joint.

[0037] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0038] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-damping concrete waterproof and dustproof expansion joint device, used for the gap formed between two concrete foundations (1), characterized in that, include: Two concrete blocks (2) are distributed on the two concrete foundations (1). Two anchors (3) are provided in the two concrete blocks (2). The two anchors (3) are respectively set in the two concrete blocks (2) so that the expansion joint device can be set synchronously with the concrete foundation project. Two anchoring bar structures are respectively set in the two concrete foundations (1) and the two concrete blocks (2) and connected to the two anchors (3). Each anchoring bar structure includes N1 stirrups, N2 longitudinal bars and N3 longitudinal bars. The N2 longitudinal bars are cast in the concrete foundation (1) and the N3 longitudinal bars are cast in the concrete block (2). The N1 stirrups are wrapped around the N2 longitudinal bars and the N3 longitudinal bars, and the two N1 stirrups are respectively connected to the two anchors (3). A telescopic structure is connected to one of the anchors (3) and is movably disposed relative to the other anchor (3). The telescopic structure covers the gap formed by the two concrete foundations (1). The telescopic structure includes a support rod (5), a toothed plate (6), and a damping support (8). The support rod (5) is connected to one of the anchors (3) and the toothed plate (6) to bear the load of the toothed plate (6). The other anchor (3) away from the support rod (5) has a notch at its upper part. The damping support (8) is disposed in the notch. The end of the toothed plate (6) away from the support rod (5) abuts against the damping support (8). The toothed plate (6) protrudes above the concrete block (2) and the load is distributed by the damping support (8) and the support rod (5).

2. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: A support member (7) is provided at the notch. The support member (7) is L-shaped, and the right-angle end of the support member (7) abuts against the top corner of the notch. One end of the support member (7) is connected to the base of the damping support (8) so that the damping support (8) is not easy to move.

3. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: The upper part of the damping support (8) is provided with a dustproof layer (9), which covers and shields the gap between the two concrete foundations (1) and the notch, in order to reduce dust falling into the gap.

4. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: A waterproof layer (10) is connected between the two anchors (3), and the waterproof layer (10) covers the gap between the two concrete foundations (1).

5. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: Each anchor (3) is trapezoidal in shape, and a through-hole (4) is provided at the acute end of each anchor (3), and two N3 longitudinal ribs are passed through one through-hole (4).

6. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: The N1 stirrup is shaped like a mouth, and both ends are U-shaped and wrap around the two N2 longitudinal bars.

7. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 4, characterized in that: The waterproof layer (10) extends to the lower part of the two anchors (3) at both ends, so that the waterproof layer (10) is pressed down by the two anchors (3).

8. The high-damping concrete waterproof and dustproof expansion joint device as described in claim 1, characterized in that: The distance from one end of the toothed plate (6) to the notch end is greater than the gap between the two concrete blocks (2).

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