A waterproof device suitable for support

Abstract

The invention relates to the technical field of bridge bearing waterproofing, and aims to solve the problem that the existing bridge bearing waterproofing device is attached to the bearing and can only play the role of preventing wave splashing and dust but cannot prevent water immersion. A waterproofing device suitable for the bearing is provided, comprising an upper embedded plate, a lower embedded plate, an upper pressure plate, a lower pressure plate and a waterproof cover, wherein the upper embedded plate is connected to the upper beam body, the lower embedded plate is connected to the lower pier, the upper part of the waterproof cover is connected to the upper embedded plate through the upper pressure plate, and the lower part of the waterproof cover is connected to the lower embedded plate through the lower pressure plate; a sealed space is formed between the waterproofing device and the upper beam body and the lower pier, and the sealed space is used to place the bridge bearing; the waterproofing device of the invention is independent of the bearing, and a sealed space is formed between the upper beam body and the lower pier, so that the bearing in the sealed space is completely isolated from the water environment, thereby realizing the waterproofing of the bearing, providing a good working environment for the service of the bearing, and effectively improving the corrosion resistance of the bearing and extending the service life of the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bridge bearing waterproofing, and in particular to a waterproofing device suitable for a bearing. Background Art

[0002] As an important component of the bridge system, bridge bearings have the functions of bearing and adapting to the displacement and rotation of the superstructure. The service environment of the bridge often affects the life of the bearing to a great extent. With the development and demand of engineering design, the service conditions of bridge bearings have also become diversified and complicated. The bridges and piers of many bridges have low elevations due to terrain and other factors. The bearings may be immersed in water for a long time and are also easily attached by silt, which affects the performance and life of the bearings. At present, the mainstream waterproof devices of bearings are all attached to the bearing body as components, usually using stainless steel + polymer material enclosure structure, but they can only play a role in preventing splashes and dust, and cannot prevent water immersion. Summary of the invention

[0003] The present invention aims to provide a waterproof device suitable for a support, so as to solve the problem that the existing bridge support waterproof device is usually attached to the support as a component, which can only play the role of preventing wave splashes and dust, but cannot prevent water immersion.

[0004] The present invention is achieved by adopting the following technical solutions:

[0005] A waterproof device suitable for a support, comprising an upper embedded plate, a lower embedded plate, an upper pressure plate, a lower pressure plate and a waterproof cover, wherein the upper embedded plate is connected to an upper beam body, the lower embedded plate is connected to a lower pier, the upper part of the waterproof cover is connected to the upper embedded plate through the upper pressure plate, and the lower part of the waterproof cover is connected to the lower embedded plate through the lower pressure plate;

[0006] A sealed space is formed between the waterproof device, the upper beam body and the lower pier, and the sealed space is used to place a bridge support.

[0007] The waterproof device described in the present invention is structurally different from the waterproof structure attached to the support in the prior art. The waterproof device described in the present invention is independent of the support body, and forms a sealed space between the upper beam body and the lower pier, so that the bridge support in the sealed space is completely isolated from the external water environment, thereby achieving waterproofing of the support, providing a good working environment for the service of the support, and can effectively improve the corrosion resistance of the support and extend the life of the support.

[0008] Furthermore, the waterproof device described in the present invention does not bear vertical loads, and the vertical loads of the bridge are borne by the supports enclosed in its inner cavity. The waterproof device can adapt to the rotation and displacement of the upper beam body.

[0009] As the preferred technical solution:

[0010] The waterproof cover is an elastic structural member, and when the upper beam body is displaced or rotated, the waterproof cover can adapt to the displacement and rotation.

[0011] Since the waterproof cover is elastic, elastic stretching can be achieved to ensure the integrity of the structure.

[0012] As the preferred technical solution:

[0013] The waterproof cover is made of high molecular elastic material, which can be elastic material such as rubber, polyurethane, etc.

[0014] As the preferred technical solution:

[0015] The waterproof cover is made of transparent material or is provided with a transparent observation window, which is convenient for daily inspection and observation.

[0016] As the preferred technical solution:

[0017] The upper pressing plate is connected to the upper embedded plate by bolts, and the upper part of the waterproof cover is pressed between the upper pressing plate and the upper embedded plate;

[0018] The lower pressing plate is connected to the lower embedded plate by bolts, and the lower part of the waterproof cover is pressed tightly between the lower pressing plate and the lower embedded plate.

[0019] As the preferred technical solution:

[0020] The lower surface of the upper embedded plate and the upper surface of the upper pressing plate are both provided with first grooves, which are staggered with each other, and the upper part of the waterproof cover is embedded in the first grooves when pressed;

[0021] The upper surface of the lower embedded plate and the lower surface of the lower pressing plate are both provided with second grooves, which are staggered with each other. When pressed tightly, the lower part of the waterproof cover is embedded in the second grooves.

[0022] As the preferred technical solution:

[0023] A support frame is arranged at the inner wall of the waterproof cover for support, and the support frame includes a plurality of vertically arranged telescopic rods and circumferentially arranged stirrups.

[0024] As the preferred technical solution:

[0025] The telescopic rods are evenly and spaced apart along the inner wall of the waterproof cover.

[0026] As the preferred technical solution:

[0027] The telescopic rod includes an outer tube and an inner tube, which are clearance-matched to achieve axial telescoping to accommodate vertical displacement of the upper beam body. The outer tube and the upper embedded plate, and the inner tube and the lower embedded plate are connected via a hinge mechanism, and the hinge mechanism can achieve 360° rotation to accommodate rotation of the upper beam body.

[0028] As the preferred technical solution:

[0029] The outer tube and the inner tube of the telescopic rod are provided with a relative limit stop ring structure to prevent the two from being separated when they are relatively telescoped.

[0030] As the preferred technical solution:

[0031] The hinge mechanism is a cross hinge or a ball hinge structure.

[0032] As the preferred technical solution:

[0033] The stirrups are connected to the inner side of the outer tube, and the stirrups are made of deformable flexible material.

[0034] As the preferred technical solution:

[0035] A plurality of annular grooves are provided on the upper surface of the upper embedded plate and the lower surface of the lower embedded plate to improve the bonding ability and sealing performance with concrete.

[0036] As the preferred technical solution:

[0037] The upper pressing plate and the lower pressing plate are integral circular ring structures, or are multi-section assembled circular ring structures.

[0038] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0039] The waterproof device described in the present invention is structurally different from the waterproof structure attached to the support in the prior art. The waterproof device described in the present invention is independent of the support body, and forms a sealed space between the upper beam body and the lower pier, so that the bridge support in the sealed space is completely isolated from the external water environment, thereby achieving waterproofing of the support, providing a good working environment for the service of the support, and can effectively improve the corrosion resistance of the support and extend the life of the support.

[0040] The waterproof device of the present invention does not bear vertical loads, and the vertical loads of the bridge are borne by the supports enclosed in its inner cavity.

[0041] The waterproof cover of the present invention is flexible, so it can adapt to the displacement and rotation of the upper beam body, and the telescopic rod of the present invention can synchronously realize rotation and displacement by being hinged with the upper embedded plate and the lower embedded plate and the axial expansion and contraction of the inner and outer cylinders, thereby ensuring that the overall waterproof device can adapt to the rotation and displacement of the upper beam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The figure is a schematic diagram of the installation of the waterproof device described in the present invention.

[0043] Figure 2 It is a schematic structural diagram of the waterproof device described in the present invention.

[0044] Figure 3 It is a schematic diagram of the half-section structure of the waterproof device described in the present invention.

[0045] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0046] Figure 5 It is a schematic diagram of the structure in which the upper part of the waterproof cover of the present invention is compressed.

[0047] Figure 6 The structure of the telescopic rod of the present invention is shown in FIG. Figure 1 .

[0048] Figure 7 The structure of the telescopic rod of the present invention is shown in FIG. Figure 2 .

[0049] Icons: 1-upper embedded plate, 2-lower embedded plate, 3-upper pressure plate, 4-lower pressure plate, 5-waterproof cover, 6-telescopic rod, 601-outer cylinder, 602-inner cylinder, 7-hinge mechanism, 8-stirrups, 9-support, 10-pad stone, 11-waterproof device. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0051] Example 1

[0052] See also Figure 1-Figure 4This embodiment proposes a waterproof device suitable for a support, the waterproof device 11 includes an upper embedded plate 1, a lower embedded plate 2, an upper pressure plate 3, a lower pressure plate 4, a waterproof cover 5, a telescopic rod 6, a hinge mechanism 7, and stirrups 8, etc., wherein: the upper embedded plate 1 is connected to the upper beam body, the lower embedded plate 2 is connected to the lower pier, and the waterproof cover 5 is connected to the upper embedded plate 1 and the lower embedded plate 2 through the upper pressure plate 3 and the lower pressure plate 4 respectively. A sealed space is formed between the waterproof device 11 and the upper beam body and the lower pier, and the bridge support 9 is placed in the enclosed space so that the support 9 can be waterproofed. The waterproof device 11 provided in this embodiment is different from the waterproof structure attached to the support 9 in the prior art. The device is independent of the support 9, forms a sealed space between the upper beam and the lower pier, and places the bridge support 9 and the cushion stone 10 in the sealed space, which is completely isolated from the water environment. At the same time, because the waterproof device 11 provides a good working environment for the service of the support 9, it can effectively improve the corrosion resistance of the support 9 and extend the life of the support 9.

[0053] The upper surface of the upper embedded plate 1 and the lower surface of the lower embedded plate 2 are both provided with a plurality of annular grooves, and the upper surface of the upper embedded plate 1 and the lower surface of the lower embedded plate 2 are contact surfaces with concrete. When the upper embedded plate 1 and the lower embedded plate 2 are respectively embedded in the upper beam body and the lower pier, the annular grooves can be filled with concrete, thereby improving the bonding ability between the upper embedded plate 1 and the lower embedded plate 2 and the concrete, and improving the sealing between the upper embedded plate 1 and the upper beam body, and between the lower embedded plate 2 and the lower pier.

[0054] See also Figure 5 The upper part of the waterproof cover 5 is connected by bolting the upper pressing plate 3 and the upper embedded plate 1, and the lower part of the waterproof cover 5 is connected by bolting the lower pressing plate 4 and the lower embedded plate 2. At the same time, the lower surface of the upper embedded plate 1 and the upper surface of the upper pressing plate 3 are provided with a first groove, and they are staggered with each other. When pressed, the waterproof cover 5 can be embedded in the first groove; the upper surface of the lower embedded plate 2 and the lower surface of the lower pressing plate 4 are both provided with a second groove, and they are staggered with each other. When pressed, the waterproof cover 5 can be embedded in the second groove, and the waterproof cover 5 is pressed between the pressing plate and the embedded plate to enhance the sealing effect. At the same time, the use of a detachable connection (such as a bolt connection) is also convenient for the maintenance or replacement of the waterproof device 11 in the later stage.

[0055] The upper pressing plate 3 and the lower pressing plate 4 can be set as an integral circular ring structure, or can be set as a multi-section assembled circular ring structure (a two-section assembled structure is preferably used in this embodiment), so as to facilitate the compression installation of the waterproof cover 5.

[0056] The waterproof cover 5 is made of a polymer elastic material, specifically, an elastic material such as rubber, polyurethane, etc. When the upper beam body is displaced, the waterproof cover 5 can achieve elastic stretching to adapt to the displacement of the beam body, thereby ensuring the integrity of the structure.

[0057] The inner wall of the waterproof cover 5 is provided with a support frame for support, and the support frame includes a telescopic rod 6, stirrups 8, etc. Among them: the telescopic rod 6 includes an outer tube 601 and an inner tube 602 (see Figure 6 and Figure 7 ), the two are clearance-fitted to realize axial extension and retraction, and a relative limit retaining ring structure is provided on the outer cylinder 601 and the inner cylinder 602 of the telescopic rod 6 to prevent the two from disengaging when the two are relatively extended and retracted. The telescopic rod 6 can be made of profiles, such as aluminum alloy profiles, stainless steel profiles, etc.; the stirrup 8 is an annular structure, which is connected to the inner side of the supporting skeleton to play a supporting role. Specifically, the stirrup 8 is connected to the inner side of each outer cylinder 601, and the stirrup 8 is made of deformable flexible material.

[0058] By using the telescopic rod 6 and the stirrup 8 to support the inner wall of the waterproof cover 5, it is possible to prevent the waterproof cover 5 from being excessively deformed and damaged due to water pressure.

[0059] The outer tube 601 of the telescopic rod 6 and the upper embedded plate 1, as well as the inner tube 602 and the lower embedded plate 2 are connected by a hinge mechanism 7. The hinge mechanism 7 can realize 360° rotation to adapt to the relative rotation in all directions caused by the movement of the upper beam body. The hinge mechanism 7 can be a cross hinge or a ball hinge structure.

[0060] Therefore, when the upper beam body undergoes translation and rotation, the telescopic rod 6 can be freely extended and rotated by utilizing the telescopic function of the telescopic rod 6 and the rotation function of the hinge mechanism 7, and no jamming will occur. At the same time, each telescopic rod 6 is connected in series through a plurality of stirrups 8 to ensure the integrity of the supporting skeleton. At the same time, the stirrups 8 are made of deformable flexible material, which can also avoid fixing the position of each telescopic rod 6, so that each telescopic rod 6 can always be freely extended and rotated.

[0061] The working mechanism of the waterproof device 11 described in this embodiment during service is: 1) The waterproof device 11 does not bear vertical loads, and the vertical load of the bridge is borne by the support 9 enclosed in its inner cavity; 2) When the upper beam body undergoes translation and rotation, the upper embedded plate 1 fixed thereto is displaced, and the waterproof cover 5 is flexible, so it can adapt to the displacement and rotation of the upper beam body, and the supporting frame is hinged with the upper embedded plate 1 and the lower embedded plate 2 and the axial expansion and contraction of the inner and outer cylinders to synchronously realize rotation and displacement, thereby ensuring that the overall waterproof device can adapt to the rotation and displacement of the upper beam body.

[0062] Example 2

[0063] The difference between this embodiment and embodiment 1 is that:

[0064] In this embodiment, the telescopic rod 6 in the first embodiment can also be replaced by other mechanisms such as concave-convex non-detachable interlocking structures that can achieve relative sliding.

[0065] Example 3

[0066] The difference between this embodiment and embodiment 1 is that:

[0067] In addition to the cross hinge or ball hinge structure mentioned in Example 1, the hinge mechanism 7 in this embodiment may also adopt other mechanisms capable of achieving 360° rotation.

[0068] Example 4

[0069] The difference between this embodiment and embodiment 1 is that:

[0070] The waterproof cover 5 is made of transparent material or provided with a transparent observation window to facilitate daily inspection and observation.

[0071] Example 5

[0072] The difference between this embodiment and embodiment 1 is that:

[0073] The outer shape of the waterproof device is not limited to being cylindrical, and its cross section may also be other shapes, such as square, rectangular, other polygonal shapes, etc.

[0074] Example 6

[0075] The difference between this embodiment and embodiment 1 is that:

[0076] The waterproof device may also be installed in an inverted manner as in Example 1 as a new implementation method.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waterproof device suitable for a support, characterized in that: It includes an upper embedded plate, a lower embedded plate, an upper pressure plate, a lower pressure plate and a waterproof cover, wherein the upper embedded plate is connected to the upper beam body, the lower embedded plate is connected to the lower pier, the upper part of the waterproof cover is connected to the upper embedded plate through the upper pressure plate, and the lower part of the waterproof cover is connected to the lower embedded plate through the lower pressure plate; A sealed space is formed between the waterproof device, the upper beam body and the lower pier, and the sealed space is used to place a bridge support; The waterproof cover is an elastic structural member, and when the upper beam body is displaced or rotated, the waterproof cover can adapt to its displacement and rotation; The lower surface of the upper embedded plate and the upper surface of the upper pressing plate are both provided with first grooves, which are staggered with each other, and the upper part of the waterproof cover is embedded in the first grooves when pressed; The upper surface of the lower embedded plate and the lower surface of the lower pressing plate are both provided with second grooves, which are staggered with each other, and the lower part of the waterproof cover is embedded in the second grooves when pressed; A support frame is provided at the inner wall of the waterproof cover for support, and the support frame includes a plurality of vertically arranged telescopic rods and circumferentially arranged stirrups; The telescopic rod includes an outer tube and an inner tube, which are clearance-matched to achieve axial telescoping to accommodate vertical displacement of the upper beam body. The outer tube and the upper embedded plate, and the inner tube and the lower embedded plate are connected via a hinge mechanism, and the hinge mechanism can achieve 360° rotation to accommodate rotation of the upper beam body.

2. The waterproof device for a support according to claim 1, characterized in that: The upper pressing plate is connected to the upper embedded plate by bolts, and the upper part of the waterproof cover is pressed between the upper pressing plate and the upper embedded plate; The lower pressing plate is connected to the lower embedded plate by bolts, and the lower part of the waterproof cover is pressed tightly between the lower pressing plate and the lower embedded plate.

3. The waterproof device for a support according to claim 1, characterized in that: The outer tube and the inner tube of the telescopic rod are provided with a relative limit stop ring structure to prevent the two from being separated when they are relatively telescoped.

4. The waterproof device for a support according to claim 1, characterized in that: The stirrups are connected to the inner side of the outer tube, and the stirrups are made of deformable flexible material.

5. The waterproof device for a support according to any one of claims 1 to 4, characterized in that: A plurality of annular grooves are provided on the upper surface of the upper embedded plate and the lower surface of the lower embedded plate to improve the bonding ability and sealing performance with concrete.

6. The waterproof device for a support according to any one of claims 1 to 4, characterized in that: The upper pressing plate and the lower pressing plate are integral circular ring structures, or are multi-section assembled circular ring structures.

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