Elastic reset bridge support

Abstract

This invention provides an elastically resetting bridge bearing, comprising a first anchor plate and a main body mechanism, which includes a base plate disposed on the first anchor plate and elastically resetting mechanisms disposed on the first anchor plate and located on both sides of the base plate. The elastically resetting mechanism includes a pair of spaced-apart pressure-bearing units and an elastic unit disposed between the two pressure-bearing units. This invention possesses elastically resetting capability, and when the elastically resetting mechanism moves along the bridge direction and abuts against a stop block, the elastic element can more easily contract inward to store maximum restoring force, thereby ensuring that the elastically resetting bridge bearing can smoothly reset after the force along the bridge direction disappears.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction in bridges, buildings and large steel structures, and specifically to an elastically restoring bridge bearing. Background Technology

[0002] Currently, bearings with elastic reset function are a type of passive damping device. This device has the function of allowing the bridge to return to its initial state after being subjected to horizontal load, and it is widely used in the field of vibration reduction for bridges, buildings, large steel structures and other structures.

[0003] The basic working principle of the above-mentioned support is as follows: an elastic reset unit is installed in the horizontal direction of the support. Therefore, when the bridge undergoes a large load movement along the bridge direction, the elastic reset unit provides a horizontal elastic constraint force, thereby prompting the bridge to recover in the opposite direction, so as to reduce the damage to the structure caused by large loads such as earthquakes and strong winds.

[0004] Existing elastic reset units typically employ structural solutions such as disc spring assemblies, leaf springs, and steel springs. While disc spring assemblies can provide significant restoring force, their high stiffness results in limited elastic displacement. Leaf spring assemblies, due to their large size, require substantial space for the supports, leading to congestion on the bridge pier surface. Steel springs, with their lower stiffness, cannot provide significant restoring force.

[0005] CN219137281U discloses a temporary roadbed structure, which includes a road base layer and a temporary roadbed assembly installed on top of the road base layer. The temporary roadbed assembly includes: a roadbed main body, a connecting seat, a buffer section, several positioning pins, four connecting bolts, two connecting blocks, and two connecting slots. This technical solution uses a temporary roadbed assembly. In use, a layer of sand and gravel is first laid, and then the roadbed main body is fixed using several positioning pins and four connecting bolts. The positioning pins and four connecting bolts increase the contact area between the roadbed main body and the road base layer, thereby increasing the stability of the roadbed main body installation. The buffer section also serves to reduce vibration when vehicles pass over it. Although this device can provide a certain degree of vibration reduction, it requires a large amount of space and still cannot provide significant restoring force.

[0006] Therefore, it is desirable in the art to provide a resiliently resetting bridge bearing to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide an elastically resetting bridge bearing that has elastic resetting capability under the action of an elastic resetting mechanism. When the elastic resetting mechanism moves along the bridge direction and abuts against the stop block, the elastic element can more easily contract inward to store the maximum restoring force, thereby ensuring that the elastically resetting bridge bearing can be smoothly reset after the force along the bridge direction disappears.

[0008] According to the present invention, an elastically resetting bridge bearing is provided, comprising a first anchor plate.

[0009] The main structure includes a base basin mounted on the first anchor plate, and

[0010] An elastic reset mechanism is provided on the first anchor plate and located on both sides of the bottom basin. The elastic reset mechanism includes a pair of spaced-apart pressure-bearing units and an elastic unit disposed between the two pressure-bearing units.

[0011] In one embodiment, a pair of symmetrically arranged first slide rails are provided on the first anchor plate, and the elastic reset mechanism is provided on both first slide rails.

[0012] In one embodiment, the main body mechanism further includes a fixed slide rail disposed on the base.

[0013] The pressure-bearing unit is constructed in a U-shape and includes a connecting rod and sliders disposed at both ends of the connecting rod. One of the sliders is slidably connected to the first slide rail, and the other slider is slidably connected to the fixed slide rail.

[0014] In one embodiment, the elastic unit includes a plurality of elastic elements arranged in series and configured in an arc shape, and a limiting block fixed between adjacent elastic elements and forming a sliding connection with the first slide rail and the fixed slide rail, respectively.

[0015] In one embodiment, a stop block for abutting against the pressure-bearing unit is provided in the first slide.

[0016] The elastic element is configured to move along the bridge direction under the action of external force, and to retract inward when the pressure unit abuts against the stop block until the adjacent limit blocks and the adjacent slider abut against each other.

[0017] In one embodiment, the basin includes a first basin portion configured as an inner circle and an outer square, and a second basin portion configured as a U-shape extending outward from both ends of the first basin portion, wherein the fixed slide rail is fixed to the top of the second basin portion, the elastic reset mechanism is disposed within the second basin portion, and the stop block is located below the second basin portion.

[0018] In one embodiment, a second slide rail is provided on the first anchor plate, located between the two first slide rails.

[0019] A guide rail is provided at the lower end face of the first base portion for adapting to the second slide rail.

[0020] In one embodiment, a wear-resistant plate is provided between the first base portion and the first anchor plate.

[0021] In one embodiment, the main body further includes a piston disposed within the first basin portion, and a spherical liner disposed between the piston and the first basin portion, wherein a friction pair is provided between the liner and the first basin portion and the piston.

[0022] In one embodiment, the elastic reset bridge support further includes a second anchor plate disposed above the base plate, and anchors disposed on the first anchor plate and the second anchor plate respectively, wherein the upper end face of the piston is embedded in the second anchor plate.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] Firstly, this invention possesses elastic reset capability under the action of the elastic reset mechanism. When the elastic reset mechanism moves along the bridge direction and abuts against the stop block, the elastic element can more easily contract inward to store the maximum restoring force, thereby ensuring that the elastic reset bridge support can be smoothly reset after the force along the bridge direction disappears.

[0025] Secondly, the elastic unit in this invention consists of four sets of elastic elements connected in series, thereby ensuring the controllability of the dimensions of the elastic reset bridge support along the bridge direction and further improving its dimensional advantages. In other embodiments, the number of elastic elements in the elastic unit can be increased or decreased according to actual needs.

[0026] Thirdly, the present invention ensures that the elastic element will not undergo plastic deformation under overload conditions by setting limit blocks and limit blocks at both ends of the pressure-bearing unit and sliders and sliders at both ends of the elastic unit.

[0027] When the elastic element contracts inward to its minimum under the action of the force along the bridge direction, the adjacent limiting blocks and the adjacent sliders abut against each other, effectively limiting the movement stroke of the elastic element on the first slide rail. This prevents the elastic element from undergoing plastic deformation under overloaded force along the bridge direction. In other words, the load is transferred when the limiting blocks and sliders abut against each other; that is, the force along the bridge direction is changed from being borne by the elastic element to being borne by the limiting blocks and sliders, thus ensuring that the elastic element remains within the range of elastic deformation. Attached Figure Description

[0028] The invention will now be described in detail with reference to the accompanying drawings, in which:

[0029] Figure 1 The schematic diagram illustrates the structure of the elastically resetting bridge support according to the present invention;

[0030] Figure 2 for Figure 1 A partial view showing the internal structure of the resilient reset bridge bearing.

[0031] Figure 3 The schematic diagram illustrates the structure of the elastic reset mechanism in the elastic reset bridge bearing according to the present invention;

[0032] Figure 3a This is a front view of the elastic reset mechanism in the elastic reset bridge support according to the present invention;

[0033] Figure 3b A top view of the elastic reset mechanism in the elastic reset bridge support according to the present invention;

[0034] Figure 4 This is a front view of the elastically resetting bridge support according to the present invention;

[0035] Figure 5 This is a partial sectional view of the elastic resetting bridge bearing according to the present invention;

[0036] Figure 6 The schematic diagram illustrates the structure of the fixed slide rail in the elastically resetting bridge support according to the present invention.

[0037] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0038] To make the technical solutions and advantages of the present invention clearer, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” “linking,” “fixing,” etc., 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.

[0041] Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The invention will now be further described with reference to the accompanying drawings.

[0043] Figure 1 The structure of the elastically resetting bridge support 100 according to the present invention is schematically shown;

[0044] Figure 2 for Figure 1 A partial view showing the internal structure of the resilient reset bridge support 100.

[0045] Figure 3 The structure of the elastic reset mechanism in the elastic reset bridge support 100 according to the present invention is schematically shown;

[0046] Figure 3a This is a front view of the elastic reset mechanism in the elastic reset bridge support according to the present invention;

[0047] Figure 3b A top view of the elastic reset mechanism in the elastic reset bridge support according to the present invention;

[0048] Figure 4 This is a front view of the elastically resetting bridge support 100 according to the present invention;

[0049] Figure 5 This is a partial cross-sectional view of the elastically resetting bridge support 100 according to the present invention.

[0050] like Figure 1 and 2 As shown, the elastically resetting bridge support 100 according to the present invention includes a first anchor plate 10, a main body mechanism, and an elastically resetting mechanism. The main body mechanism includes a base plate 21 disposed on the first anchor plate 10. The elastically resetting bridge support 100 includes elastically resetting mechanisms disposed on the first anchor plate 10 and located on both sides of the base plate 21.

[0051] In one embodiment, such as Figure 1 and 2As shown, a pair of symmetrically arranged first slide rails 101 are provided on the first anchor plate 10. Preferably, the elastic reset mechanism is installed on the two first slide rails 101 respectively, so as to form a sliding connection with the first anchor plate 10.

[0052] In one embodiment, such as Figure 1 and 2 As shown, a second slide rail 102 is provided on the first anchor plate 10 between the two first slide rails 101. The bottom plate 21 is adapted to the second slide rail 102 through the guide rail 213, thereby achieving the purpose of forming a sliding connection with the first anchor plate 10.

[0053] In one embodiment, such as Figure 1 and 2 As shown, the base basin 21 includes a first base basin portion 211 and a second base basin portion 212 extending outward from both ends of the first base basin portion 211. A guide rail 213 is fixed to the lower end face of the first base basin portion 211, thereby ensuring that the base basin 21 can slide smoothly on the first anchor plate 10.

[0054] In one embodiment, such as Figure 1 and 6 As shown, the main body also includes a fixed slide rail 22 disposed on the base 21. The fixed slide rail 22 is mounted on the top of the second base portion 212. Preferably, the second base portion 212 is constructed in a U-shape, thereby the fixed slide rail 22 and the second base portion 212 can be constructed into a semi-enclosed structure.

[0055] In a preferred embodiment, the elastic reset mechanism is disposed within the second base portion 212. Preferably, the semi-enclosed structure formed by the fixed slide rail 22 and the second base portion 212 ensures that the elastic reset mechanism can slide smoothly within the first slide rail 101.

[0056] According to the present invention, the elastic reset mechanism includes a pair of spaced-apart pressure-bearing units and an elastic unit disposed between the two pressure-bearing units. Preferably, each first slide 101 is provided with two pressure-bearing units and one elastic unit.

[0057] In one embodiment, such as Figure 3 and 3a As shown, the pressure-bearing unit is constructed in a U-shape and includes a connecting rod 311 and sliders disposed at both ends of the connecting rod 311. Preferably, in this invention, the slider 312 is located at the lower end face of the connecting rod 311 and can slide within the first slide rail 101; in this invention, the slider 313 is located at the upper end face of the connecting rod 311 and can slide within the fixed slide rail 22. Slider 312 and slider 313 will be described in detail below.

[0058] When the elastically restoring bridge bearing 100 is subjected to a force along the bridge direction, the base plate 21 will slide along the bridge direction on the second slide rail 102 of the first anchor plate 10. Simultaneously, the second base plate portion 212 will push the elastic restoring mechanism, causing it to slide along the bridge direction within the first slide rail 101, thereby enabling the elastic unit to undergo elastic deformation to generate a restoring force (details of which are described below). Subsequently, when the force along the bridge direction disappears, the elastically restoring bridge bearing 100 will reset under the action of the restoring force, thus achieving the purpose of elastic restoring and vibration damping.

[0059] In this invention, the direction along the bridge is... Figure 4 The horizontal direction in the middle.

[0060] In a preferred embodiment, sliders 312 and 313 are respectively connected to the elastic element 32 (described below) in the elastic unit via pins, thereby significantly improving the flexibility and stability between the pressure-bearing unit and the elastic unit.

[0061] In one embodiment, such as Figure 5 As shown, a stop 34 for abutting against the pressure-bearing unit is provided in the first slide rail 101. Preferably, two stops 34 are provided on each first slide rail 101, and the two stops 34 are respectively located outside the pressure-bearing unit. Therefore, when the elastic reset mechanism moves along the bridge direction, the pressure-bearing unit can abut against one of the stops 34, thereby ensuring that the elastic unit can achieve elastic deformation to generate a restoring force that allows the elastic reset bridge support 100 to reset.

[0062] Preferably, the stop block 34 is located below the second bottom basin portion 212 of the bottom basin 21.

[0063] In one embodiment, such as Figure 3 , 3a As shown in Figures 3b and 4, the elastic unit comprises multiple elastic elements 32 arranged in series. Preferably, each elastic element 32 is constructed in an arc shape. Thus, when the elastic reset mechanism moves along the bridge direction and abuts against the stop block 34, the elastic element 32 can more easily contract inward to store the maximum restoring force, thereby ensuring that the elastic reset bridge support 100 can be smoothly reset after the force along the bridge direction disappears.

[0064] In this way, the elastic reset bridge bearing 100 has a good elastic reset capability, which makes it easier to resist forces along the bridge direction and further improves the service life of the elastic reset bridge bearing 100.

[0065] Preferably, the elastic unit in this invention consists of four sets of elastic elements 32 connected in series, thereby ensuring the controllability of the dimensions of the elastic reset bridge support 100 along the bridge direction and further improving its dimensional advantages. In other embodiments, the number of elastic elements 32 can be increased or decreased according to actual needs.

[0066] In other embodiments, the elastic element 32 may be configured as an "O" shaped structure.

[0067] In one embodiment, the elastic unit further includes a limiting block fixed between adjacent elastic members 32. Preferably, in this invention, the limiting block 331 is located at the lower end face of the elastic member 32 and can slide within the first slide rail 101; in this invention, the limiting block 332 is located at the upper end face of the elastic member 32 and can slide within the fixed slide rail 22. The limiting blocks 331 and 332 will be described in detail below.

[0068] Preferably, sliders 312 and 313 are flush with limit blocks 331 and 332, respectively.

[0069] When the elastic reset mechanism moves along the bridge direction, the pressure-bearing unit slides simultaneously in the first slide rail 101 and the fixed slide rail 22 via sliders 312 and 313 respectively. At the same time, the elastic unit also slides in the first slide rail 101 and the fixed slide rail 22 via limit blocks 331 and 332 respectively. When the pressure-bearing unit comes into contact with the stop block 34 via slider 312, the position of the pressure-bearing unit on the first slide rail 101 will be temporarily limited.

[0070] Subsequently, under the action of the force along the bridge direction, the elastic element 32 contracts inward until the adjacent limiting blocks (limiting block 331 and limiting block 331 and limiting block 332 and limiting block 332) and the adjacent slider and limiting block (slider 312 and limiting block 331 and slider 313 and limiting block 332) abut against each other. At this point, the elastic element 32 will store the maximum restoring force so that the elastically reset bridge support 100 can be smoothly reset after the force along the bridge direction disappears.

[0071] By using adjacent limiting blocks (331 and 332) and the corresponding contact between limiting blocks (331 and 332) and sliders (312 and 313), the movement stroke of the elastic element 32 on the first slide rail 101 can be effectively limited, thereby preventing the elastic element 32 from undergoing plastic deformation under overloaded bridge-direction forces. In other words, when the limiting blocks (331 and 332) and sliders (312 and 313) are in contact with each other, the load is transferred, that is, the bridge-direction force is changed from being borne by the elastic element 32 to being borne by the limiting blocks (331 and 332) and sliders (312 and 313), thus ensuring that the elastic element 32 can always remain within the range of elastic deformation.

[0072] In a preferred embodiment, the limiting block 331 and the limiting block 332 are respectively connected to the elastic element 32 in the elastic unit through pins, thereby significantly improving the flexibility and stability of the elastic unit itself.

[0073] In another embodiment, the base 21 can be a basin-type rubber support structure.

[0074] In one embodiment, such as Figure 6 As shown, the fixed slide rail 22 includes a cover plate 221 that is sealed to the second base portion 212, and two symmetrically arranged limiting beams 222 spaced apart on the cover plate 221, wherein the length of the limiting beams 222 is smaller than the length of the cover plate 221. Preferably, both the slider 313 and the limiting block 332 can move within the two limiting beams 222, thereby ensuring that both the pressure-bearing unit and the elastic unit can slide stably within the first slide rail 101.

[0075] In a preferred embodiment, the first basin portion 211 is configured with an inner circle and an outer square structure, thereby providing sufficient rotational space for the piston 23 and the liner 24.

[0076] According to the present invention, such as Figure 2 and 5 As shown, the main mechanism also includes a piston 23 disposed within the first base portion 211, and a liner 24 disposed between the piston 23 and the first base portion 211. The upper surface of the liner 24 is spherical, allowing the piston 23 to rotate on the liner 24 to a certain extent, and, in conjunction with the elastic reset mechanism, effectively reduces vibration. This will be described in detail below.

[0077] Preferably, such as Figure 5 As shown, friction pairs 25 are provided between the liner 24 and the first base portion 211 and the piston 23. In this way, the friction between the liner 24 and the first base portion 211 and between the liner 24 and the piston 23 is effectively increased, so as to limit the rotational stroke of the piston 23.

[0078] In one embodiment, such as Figure 5 As shown, a wear-resistant plate 40 is provided between the first base portion 211 of the base basin 21 and the first anchor plate 10. It is easy to understand that the piston 23, the liner 24, the base basin 21 and the first anchor plate 10 are constructed as a spherical steel support structure.

[0079] It is easy to understand that during the above rotation process, the elastic reset mechanism will also be subjected to a force along the bridge direction. Therefore, in conjunction with the above, the spherical steel support structure can successfully complete the reset work under the action of the elastic reset mechanism.

[0080] According to the present invention, such as Figure 1 , 4 As shown in Figure 5, the elastic reset bridge support 100 also includes a second anchor plate 50 disposed above the base plate 21. Preferably, the upper end face of the piston 23 is embedded in the second anchor plate 50, thereby enabling the second anchor plate 50 to be smoothly driven to achieve a good vibration damping effect.

[0081] In one embodiment, such as Figure 5 As shown, multiple anchors 51 are respectively provided on the first anchor plate 10 and the second anchor plate 50. It is easy to understand that the anchors 51 ensure that the elastic reset bridge support 100 can be firmly installed in bridges, buildings and large steel structures.

[0082] In another embodiment, the elastic reset mechanism may also be a series of parallel, plastically deformable arc-shaped steel elements used to provide energy dissipation.

[0083] Compared with existing technologies, the advantages of this invention are:

[0084] Firstly, the present invention possesses elastic reset capability under the action of the elastic reset mechanism. When the elastic reset mechanism moves along the bridge direction and abuts against the stop block 34, the elastic element 32 can more easily contract inward to store the maximum restoring force, thereby ensuring that the elastic reset bridge support 100 can be smoothly reset after the force along the bridge direction disappears.

[0085] Secondly, the elastic unit in this invention consists of four sets of elastic elements 32 connected in series, thereby ensuring the controllability of the dimensions of the elastic reset bridge support 100 along the bridge direction and further improving its dimensional advantages. In other embodiments, the number of elastic elements 32 can be increased or decreased according to actual needs.

[0086] Thirdly, the present invention ensures that the elastic element 32 will not undergo plastic deformation under overload conditions by setting the limiting blocks 331 and 332 at both ends of the pressure-bearing unit and the sliders 312 and 313 at both ends of the elastic unit.

[0087] When the elastic element 32 contracts inward to its minimum under the action of the force along the bridge direction, the adjacent limiting blocks (331 and 332) and the adjacent sliders (312 and 313) abut against each other, thereby effectively limiting the movement stroke of the elastic element 32 on the first slide rail 101, thus preventing the elastic element 32 from undergoing plastic deformation under the action of the overload force along the bridge direction. In other words, the load transfer is achieved when the limiting blocks (331 and 332) and the sliders (312 and 313) abut against each other, that is, the force along the bridge direction is changed from being borne by the elastic element 32 to being borne by the limiting blocks (331 and 332) and the sliders (312 and 313), thereby ensuring that the elastic element 32 can always be within the range of elastic deformation.

[0088] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art can easily make changes or modifications within the scope of the present invention, and such changes or modifications should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A resiliently restoring bridge bearing, comprising: The first anchor plate (10) has a pair of symmetrically arranged first slide rails (101). The main structure includes a base plate (21) mounted on the first anchor plate (10) and a fixed slide rail (22) mounted on the base plate (21), and An elastic reset mechanism is provided on the first anchor plate (10) and located on both sides of the bottom basin (21). The elastic reset mechanism includes a pair of spaced-apart pressure-bearing units and an elastic unit provided between the two pressure-bearing units. The elastic unit includes a plurality of elastic elements (32) arranged in series and configured in an arc shape, and a limiting block fixed between adjacent elastic elements (32) and forming a sliding connection with the first slide rail (101) and the fixed slide rail (22) respectively. The elastic elements (32) are configured to retract inward to store restoring force, so that the elastic reset bridge support is reset after the force along the bridge direction disappears. The pressure-bearing unit is constructed in a U-shape and includes a connecting rod (311) and sliders disposed at both ends of the connecting rod (311). One of the sliders is slidably connected to the first slide rail (101), and the other slider is slidably connected to the fixed slide rail (22). The sliders abut against the limiting block to ensure that the elastic element (32) is always within the range of elastic deformation. The elastic reset mechanism is provided on both of the first slide rails (101), and a stop (34) for abutting against the pressure unit is provided in the first slide rail (101). The elastic element (32) is configured to move along the bridge direction under the action of external force and retract inward when the pressure unit abuts against the stop (34) until the adjacent limit blocks and the adjacent slider abut against each other.

2. The elastically resetting bridge bearing according to claim 1, characterized in that, The base (21) includes a first base portion (211) configured as an inner circle and an outer square, and a second base portion (212) configured as a U-shape extending outward from both ends of the first base portion (211), wherein the fixed slide rail (22) is fixed to the top of the second base portion (212), the elastic reset mechanism is disposed inside the second base portion (212), and the stop block (34) is located below the second base portion (212).

3. The elastically resetting bridge bearing according to claim 2, characterized in that, A second slide (102) is provided on the first anchor plate (10) between the two first slides (101). A guide rail (213) for adapting to the second slide rail (102) is provided at the lower end face of the first base portion (211).

4. The elastically resetting bridge bearing according to claim 3, characterized in that, A wear-resistant plate (40) is provided between the first base portion (211) and the first anchor plate (10).

5. The elastically resetting bridge bearing according to claim 4, characterized in that, The main body also includes a piston (23) disposed in the first base portion (211) and a spherical liner (24) disposed between the piston (23) and the first base portion (211), wherein a friction pair (25) is provided between the liner (24) and the first base portion (211) and the piston (23).

6. The elastically resetting bridge bearing according to claim 5, characterized in that, The elastic reset bridge support also includes a second anchor plate (50) disposed above the base plate (21), and anchors (51) respectively disposed on the first anchor plate (10) and the second anchor plate (50), with the upper end face of the piston (23) embedded in the second anchor plate (50).

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