Windproof bridge support with elastic connection device

Abstract

A windproof bridge bearing with an elastic connection device, wherein transverse bridge windshields for windproofing the bearing in the transverse bridge direction are respectively arranged on both sides of the transverse bridge direction of the bearing, and longitudinal bridge windshields for windproofing the bearing in the longitudinal bridge direction are respectively arranged on both sides of the longitudinal bridge direction of the bearing, and elastic connection devices are respectively fixed on both sides of the longitudinal bridge direction and the transverse bridge direction of the upper seat plate of the bearing, and the upper end of the transverse bridge windshield is elastically connected to the upper and lower ends of the upper seat plate of the bearing through a connection device and is suspended in the air, and the end of the longitudinal bridge windshield away from the bearing is fixed at the position, and the end of the longitudinal bridge windshield corresponding to the bearing is connected to the elastic connection device. The longitudinal bridge windshield and the transverse bridge windshield are connected to the bearing through an elastic connection device to meet the needs of transverse bridge slippage and bearing height change after the spherical surface rotates during normal operation of the bearing. The bridge bearing has the advantages of simple structure, convenient installation, excellent corrosion resistance, good sealing, high rigidity, excellent windproof performance, and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of bridge supports, in particular to a windproof bridge support with an elastic connecting device. Background Art

[0002] Spherical bearings have the characteristics of high bearing capacity, simple structure, flexible rotation, and excellent durability. They are widely used in railways, highways, cities and intercity rail transit bridges. Spherical bearings mainly use two friction pairs - plane friction pairs and spherical friction pairs to complete the bearing's bearing, displacement and rotation functions. Both the plane friction pair and the spherical friction pair are composed of stainless steel slides and non-metallic slides. They are the core components of the spherical bearing and are also the key to affecting the service life of the bearing. Therefore, its dustproof seal is very important. Once dust and impurities enter the friction surface, it will seriously affect the functionality and durability of the bearing.

[0003] At present, the external dustproof sealing device of the spherical bearing in China mainly adopts a structure in which polyurethane panels and rubber panels surround the entire circle of the bearing seat plate and are fixed with pressure strips, or a structure in which a steel structure is used as the skeleton and organic glass panels are installed around and on the upper surface to achieve the dustproof effect. However, there are the following shortcomings in actual use: the polyurethane panels, rubber panels or organic glass panels used will be affected by environmental factors such as ozone and ultraviolet rays and age. In a high humidity environment, they are prone to hydrolysis or performance degradation after absorbing water, resulting in damage and cracking, resulting in reduced sealing effect and affecting the protection life. Both structural dustproof devices are not suitable for strong wind environments, especially when used in coastal areas prone to typhoons. Due to insufficient fixing force and their own material characteristics, polyurethane panels, rubber panels and organic glass panels are easily blown and torn, resulting in the bearing friction surface being exposed and unable to play a long-term protective role. The existing protective device needs to reserve displacement space. Under the condition of large displacement of the bearing, the dustproof sealing device structure is large and the bridge structure cannot meet the installation requirements. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a windproof bridge support with an elastic connection device, which uses the elastic connection device to connect the transverse windshield and the longitudinal windshield to the support to achieve transverse, longitudinal and rotational wind protection.

[0005] In order to achieve the above technical purpose, the adopted technical scheme is: a windproof bridge bearing with an elastic connection device, which is provided with a bearing, and transverse bridge windshields for protecting the bearing from wind in the transverse direction are respectively arranged on both sides of the transverse bridge of the bearing, and longitudinal bridge windshields for protecting the bearing from wind in the longitudinal direction are respectively arranged on both sides of the longitudinal bridge of the bearing, and elastic connection devices are respectively fixed on both sides of the longitudinal bridge and transverse bridge of the upper seat plate of the bearing, the upper end of the transverse bridge windshield is elastically connected to the upper seat plate of the bearing through the elastic connection device and is suspended in the air at the upper and lower ends, the end of the longitudinal bridge windshield away from the bearing is fixed in position, the end of the longitudinal bridge windshield corresponding to the bearing is connected to the elastic connection device, and the minimum compression length of the longitudinal bridge windshield The difference between the maximum elongation length and the maximum elongation length is greater than the unidirectional displacement of the support. The elastic connecting device includes a connecting plate, a fixing plate, an elastomer and a fastening bolt. The fixing plate is horizontally fixed on the upper plate of the support. The fixing plate is provided with an anchor hole for installing the fastening bolt. A connecting plate is connected to the surface of the fixing plate. A plurality of horizontal long holes are provided on the connecting plate corresponding to the anchor holes. The length of the horizontal long holes in the longitudinal bridge direction is greater than the transverse bridge displacement of the support. The height of the horizontal long holes is greater than the vertical rotation of the support. After the elastomer is put on the fastening bolt, it is passed through one end of the longitudinal bridge wind shield corresponding to the support or the upper end of the transverse bridge wind shield, the horizontal long hole and the anchor hole in sequence and tightened, and then the connecting plate is elastically pressed onto the fixing plate.

[0006] The longitudinal bridge wind shield is formed by overlapping multiple sections of shields along the longitudinal bridge direction of the support.

[0007] A buckle is respectively connected to both sides of the longitudinal bridge direction of the transverse bridge direction windshield, and the buckle is inserted into the gap between the transverse bridge direction windshield and the longitudinal bridge direction windshield.

[0008] The buckle is composed of an insert plate and a cover plate which are vertically connected to each other. The thickness of the insert plate matches the gap between the transverse bridge windshield and the longitudinal bridge windshield, and the width of the cover plate is greater than the gap between the transverse bridge windshield and the longitudinal bridge windshield.

[0009] The elastic body is a spring or a rubber sleeve.

[0010] The beneficial effects of the present invention are:

[0011] The bridge support dust and windproof device proposed by the present invention is made of stainless steel, which has excellent corrosion resistance and aging resistance, avoids direct exposure of polyurethane panels or rubber panels to the sun, reduces material aging and failure caused by ultraviolet rays, ozone, etc., and has better durability. The device has high rigidity, can withstand strong winds, and has good windproof capabilities. The transverse bridge windshield and the longitudinal bridge windshield of the device are connected by buckles, without gaps, which improves the overall rigidity and dustproof sealing performance of the device.

[0012] The longitudinal windshield can adapt to the large longitudinal sliding displacement of the bearing. The longitudinal windshield and transverse windshield are connected to the bearing through an elastic connection device to adapt to the need for transverse sliding during normal operation of the bearing and the change in bearing height after the spherical surface rotates. This bridge bearing has the advantages of simple structure, convenient installation, excellent corrosion resistance, good sealing, high rigidity, excellent windproof performance, and long service life. The device has no interference effect on the longitudinal and transverse sliding and vertical rotation of the bridge bearing under normal use conditions. Compared with the existing spherical bearing, it has achieved an upgrade in the dustproof sealing device, and the windproof and dustproof sealing effects are significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the enlarged structure of part A of the present invention;

[0016] Figure 4 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 5 It is a schematic diagram of the connecting plate structure of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the buckle of the present invention;

[0019] In the figure: 1, longitudinal bridge wind shield, 2, elastic connecting device, 201, connecting plate, 201-1, horizontal long hole, 202, fixing plate, 203, elastic body, 204, fastening bolt, 3, support, 4, transverse bridge wind shield, 5, buckle, 501, plug plate, 502, cover plate. DETAILED DESCRIPTION

[0020] A windproof bridge support with an elastic connection device is provided with a support 3, and transverse bridge windshields 4 are respectively provided on both sides of the support 3 in the transverse bridge direction to protect the support 3 from wind in the transverse bridge direction, and longitudinal bridge windshields 1 are respectively provided on both sides of the support 3 in the longitudinal bridge direction to protect the support 3 from wind in the longitudinal bridge direction. The structures of the transverse bridge windshield 4 and the longitudinal bridge windshield 1 do not affect the use of the support, and the setting position is located above the lower seat plate of the support.

[0021] Elastic connecting devices are fixed on both sides of the longitudinal bridge and the transverse bridge of the upper seat plate of the support 3 respectively. The function of the elastic connecting devices is to provide rotation clearance and displacement clearance. The upper end of the transverse bridge windshield 4 is elastically connected to the upper and lower ends of the upper seat plate of the support 3 through an elastic connecting device and is suspended in the air. The suspended position is located on the side of the lower seat plate, but not lower than the bottom surface of the lower seat plate. The end of the longitudinal bridge windshield 1 away from the support 3 is fixed at the position, and the end of the longitudinal bridge windshield 1 corresponding to the support 3 is connected to the elastic connecting device 2. The longitudinal bridge windshield 1 adopts a structural form in which one end is fixed and the other parts are telescopic. The difference between the minimum compression length and the maximum extension length of the longitudinal bridge windshield 1 is greater than the unidirectional displacement of the support. The elastic connecting device 2 includes a connecting plate 201, a fixing plate 202, an elastic body 203 and a fastening bolt 2 04, the fixing plate 202 is horizontally fixed on the upper plate of the support 3, and the fixing plate 202 is provided with anchor holes for installing fastening bolts 204. A connecting plate 201 is connected to the surface of the fixing plate 202, and a plurality of horizontal long holes 201-1 are opened on the connecting plate 201 corresponding to the anchor holes. The length of the horizontal long hole 201-1 in the longitudinal direction is greater than the transverse displacement of the support, and the length of the horizontal long hole 201-1 in the transverse direction is matched with the screw clearance of the fastening bolt 204. The height of the horizontal long hole 201-1 is greater than the vertical rotation of the support. After the fastening bolt 204 is put through the elastomer 203, it passes through the end of the longitudinal wind shield 1 corresponding to the support 3 or the upper end of the transverse wind shield 4, the horizontal long hole and the anchor hole in sequence, and then the connecting plate 201 is elastically pressed onto the fixing plate 202.

[0022] When the longitudinal bridge windshield 1 moves in the longitudinal bridge direction with the support, the longitudinal bridge windshield is displaced by telescoping, and the transverse bridge windshield moves along with the longitudinal bridge. The longitudinal bridge windshield on one side is compressed, and the longitudinal bridge windshield on the other side is stretched, thereby realizing longitudinal bridge displacement compensation.

[0023] When the transverse bridge windshield 1 is displaced along the longitudinal bridge direction with the support, the transverse bridge windshield is displaced along with the support, while the longitudinal bridge windshield does not move. The fastening bolts 204 are moved in the horizontal long holes of the longitudinal bridge elastic connection device through the longitudinal bridge direction, thereby achieving the longitudinal bridge windshield being stationary, but without affecting the movement of the transverse bridge windshield.

[0024] When the support rotates, since the wind shields in the longitudinal and transverse directions of the bridge are elastically connected, the connecting plate and the fixing plate can move vertically with the support. Due to the existence of the horizontal long hole, the height of the horizontal long hole meets the rotation requirements.

[0025] The fixing plate can be made of non-metallic materials, such as polytetrafluoroethylene plate, ceramic plate and the like.

[0026] The longitudinal bridge wind shield 1 is formed by overlapping multiple sections of shields along the longitudinal bridge direction of the support, and the overlapping length must meet the stiffness requirements.

[0027] When the transverse bridge windshield and the longitudinal bridge windshield are connected to the support, even if the two are made to be spliced ​​as much as possible, there will inevitably be some gaps between the two because they are not sealed. The thickness of the connecting plate of the elastic connecting device and the elastomer will also produce some gaps. In order to seal these gaps, a buckle 5 can be connected to the longitudinal bridge sides of the transverse bridge windshield 4 respectively. The buckle 5 is inserted into the gap between the transverse bridge windshield 4 and the longitudinal bridge windshield 1. The buckle moves with the transverse bridge windshield 4, but the gap is always kept in a sealed state, and it will not affect the movement of the transverse bridge windshield and the longitudinal windshield.

[0028] The buckle 5 is composed of an insert plate 501 and a cover plate 502 which are vertically connected to each other. The thickness of the insert plate 501 matches the gap between the transverse bridge wind shield 4 and the longitudinal bridge wind shield 1. The width of the cover plate 502 is larger than the gap between the transverse bridge wind shield 4 and the longitudinal bridge wind shield 1. The length of the insert plate 501 is slightly longer than the maximum lateral movement distance of a single side.

[0029] The elastic body 203 is a spring or a rubber sleeve.

[0030] If the length of the longitudinal windshield is longer than the length of the lower seat plate, a sealing plate connected to the last section of the protective cover is added to the lower side of the extended part to seal the bottom surface. The sealing plate does not affect the telescopic movement of the protective covers of other sections.

[0031] The top surface of the longitudinal wind shield is a V-shaped slope, which is inclined from the middle to the outer side and downward, so as to facilitate guiding the wind.

[0032] The windshield is made of stainless steel, which has excellent corrosion resistance and aging resistance. It avoids direct exposure of polyurethane panels or rubber panels to the sun, reduces material aging and failure caused by ultraviolet rays, ozone, etc., and has better durability. In addition, the device composed of steel plates has high rigidity, can withstand strong winds, and has good windproof capabilities. The transverse windshield and the longitudinal windshield of the device are sealed and connected with buckles, without gaps, which improves the overall rigidity and dustproof sealing performance of the device. The device has the advantages of simple structure, convenient installation, excellent corrosion resistance, good sealing, high rigidity, excellent windproof performance, and long service life.

Claims

1. A windproof bridge support with an elastic connection device, characterized in that: A support (3) is provided, and transverse bridge wind shields (4) for protecting the support (3) from wind in the transverse direction are respectively provided on both sides of the transverse bridge of the support (3), and longitudinal bridge wind shields (1) for protecting the support (3) from wind in the longitudinal direction are respectively provided on both sides of the longitudinal bridge of the support (3). Elastic connecting devices are respectively fixed on both sides of the longitudinal bridge and the transverse bridge of the upper seat plate of the support (3). The upper end of the transverse bridge wind shield (4) is elastically connected to the upper and lower ends of the upper seat plate of the support (3) through the elastic connecting device and is suspended in the air. The end of the longitudinal bridge wind shield (1) away from the support (3) is fixed at a position. The end of the longitudinal bridge wind shield (1) corresponding to the support (3) is connected to the elastic connecting device (2). The difference between the minimum compression length and the maximum extension length of the longitudinal bridge wind shield (1) is greater than the unidirectional displacement of the support. The elastic connecting device (2) comprises a connecting plate (201), a fixing plate ( 202), an elastic body (203) and a fastening bolt (204), the fixing plate (202) is horizontally fixed on the upper seat plate of the support (3), the fixing plate (202) is provided with an anchor hole for installing the fastening bolt (204), a connecting plate (201) is connected to the surface of the fixing plate (202), a plurality of horizontal long holes (201-1) are opened on the connecting plate (201) corresponding to the anchor holes, the length of the horizontal long hole (201-1) in the longitudinal direction is greater than the displacement of the support in the transverse direction, and the height of the horizontal long hole (201-1) is greater than the vertical rotation of the support, after the elastic body (203) is put on the fastening bolt (204), it passes through one end of the longitudinal wind shield (1) corresponding to the support (3) or the upper end of the transverse wind shield (4), the horizontal long hole and the anchor hole in sequence, and after being fastened, the connecting plate (201) is elastically pressed onto the fixing plate (202).

2. A windproof bridge support with an elastic connection device as claimed in claim 1, characterized in that: The longitudinal bridge windshield (1) is formed by overlapping a plurality of sections of protective covers in the longitudinal bridge direction of the support.

3. A windproof bridge support with an elastic connection device as claimed in claim 1, characterized in that: The longitudinal bridge sides of the transverse bridge windshield (4) are respectively connected to a buckle (5), and the buckle (5) is inserted into the gap between the transverse bridge windshield (4) and the longitudinal bridge windshield (1).

4. A windproof bridge support with an elastic connection device as claimed in claim 3, characterized in that: The buckle (5) is composed of an insert plate (501) and a cover plate (502) which are vertically connected to each other. The thickness of the insert plate (501) matches the gap between the transverse wind shield (4) and the longitudinal wind shield (1), and the width of the cover plate (502) is greater than the gap between the transverse wind shield (4) and the longitudinal wind shield (1).

5. A windproof bridge support with an elastic connection device as claimed in claim 1, characterized in that: The elastic body (203) is a spring or a rubber sleeve.

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