Bridge support

Abstract

The utility model relates to the technical field of bridge supports, in particular to a bridge support. Comprising an upper bridge, a support is installed in the upper bridge, a lower bridge is installed at the lower end of the support, a sealing ring is fixedly connected between the lower bridge and the support, the sealing ring is a rubber sealing gasket, an arc-shaped groove is formed in the lower bridge, an arc-shaped plate is fixedly connected to the lower end of the support, and the arc-shaped plate and the arc-shaped groove are arranged in a sliding mode. When the bridge is stressed to enable the arc-shaped plate to slide in the arc-shaped groove, lubricating grease in contact with the arc-shaped plate can be smeared in the arc-shaped groove along with sliding of the arc-shaped plate, and in the lubricating groove shielded by the arc-shaped plate, the pushing spring is reset to push the pushing plate to push the lubricating grease out of the arc-shaped groove, so that when the support is subjected to large force to drive the arc-shaped plate to move greatly, the lubricating grease is smeared in the arc-shaped groove. According to the bridge support, more lubricating grease can be extruded out to lubricate the bridge, the device can carry out different responses under different stress conditions of the bridge, the endurance effect of the lubricating grease during use of the support is improved by controlling the output amount of the lubricating grease, and therefore abrasion of the support is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bearings, in particular to a bridge bearing. Background Art

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It is located between the bridge and the pad stone. It can reliably transfer the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge. It is an important force transmission device of the bridge. There are two types of bridge bearings: fixed bearings and movable bearings. Commonly used bearing forms in bridge engineering include: asphalt or flat bearings, plate rubber bearings, spherical bearings, steel bearings and special bearings.

[0003] A maintenance-free or low-maintenance bridge bearing mentioned in the existing Chinese public patent (authorization announcement number: CN211973083U). It includes an upper seat plate, a middle seat plate, and a lower seat plate. An anchor bolt assembly for connecting to the bridge is provided on the upper seat plate and the lower seat plate. The lower surface of the upper seat plate is a plane. Dustproof baffles are provided on the corresponding two or four sides of the lower surface of the upper seat plate. The dustproof baffle is arranged perpendicular to the lower surface of the upper seat plate; a dustproof baffle I is fixed above the dustproof baffle, and the dustproof baffle I is arranged perpendicular to the dustproof baffle; a sealing assembly for sealing the bolt head is provided at the head of the anchor bolt assembly. This bearing has excellent dustproof and corrosion-resistant effects, can effectively protect the friction pair of the bridge bearing, avoid rusting of the anchor bolts and the main materials, and thus reduce the maintenance times of the bearing, achieve the purpose of low maintenance or maintenance-free, and greatly reduce the full life cycle cost of the bearing.

[0004] Existing bridge bearings are all filled with lubricants once. As the bearings are used for a longer period of time, the silicone grease lubricant will gradually be lost and worn away, causing increased wear on the bearings. The bearing's ability to reset after sliding basically only relies on the horizontal component of its own weight. The friction coefficient of its sliding surface has a greater impact on self-reset, and excessive friction will restrict the self-reset ability. Utility Model Content

[0005] The purpose of the present application is to provide a bridge bearing to solve the problem of rapid lubricant consumption in existing bridge bearings, resulting in rapid bearing wear and reduced reset ability.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A bridge bearing comprises an upper bridge, a bearing is installed in the upper bridge, a lower bridge is installed at the lower end of the bearing, a sealing ring is fixedly connected between the lower bridge and the bearing, the sealing ring is a rubber sealing gasket, an arc groove is opened on the lower bridge, an arc plate is fixedly connected to the lower end of the bearing, the arc plate and the arc groove are slidably arranged, a lubrication structure is arranged on the lower bridge, and a reset structure is arranged between the lower bridge and the bearing.

[0008] By adopting the above technical solution, when the bridge is subjected to force, the upper bridge will transmit the force to the support through the reset structure, so that the arc plate will slide along the arc groove to unload the force. In the process of unloading the force, the lubrication structure will be triggered to lubricate the arc groove and the arc plate, thereby reducing the friction during the movement of the support, making it easier to reset the support and reducing the wear of the support, thereby extending the service life of the device and reducing frequent maintenance work.

[0009] Furthermore, the lubrication structure includes four circumferentially distributed lubrication grooves opened in the arc groove, the lubrication grooves are shielded by the arc plate, and lubrication grease is provided in the lubrication grooves.

[0010] By adopting the above technical solution, as the arc plate slides, the lubricating paste in contact with it will be smeared in the arc groove, thereby reducing the friction force when the support moves, making it easier to reset the support.

[0011] Furthermore, a push rod is slidably connected inside the lower bridge, a push plate is fixedly connected to the end of the push rod, the push plate is slidably connected to the arc groove, and the push plate is in contact with the lubricating grease.

[0012] By adopting the above technical solution, the push plate resists the lubricating paste, so that the surface of the lubricating paste is in closer contact with the surface of the arc plate, and the arc plate is better coated.

[0013] Furthermore, a push spring is sleeved on the push rod, and two ends of the push spring are fixedly connected to the push plate and the lubrication groove respectively.

[0014] By adopting the above technical solution, the spring is pushed to reset and the push plate is pushed out to push the lubricating paste into the arc groove, so that when the support is driven by a large force to drive the arc plate to move greatly, more lubricating paste can be squeezed out to lubricate it.

[0015] Furthermore, the reset structure comprises a rubber plate fixedly connected to the inside of the support, a rubber block is fixedly connected to the rubber plate, the rubber plate is a hard rubber plate, and the rubber block is a multi-layer adhesive rubber plate.

[0016] By adopting the above technical solution, the force is transmitted to the external support through the rubber block, so that the rubber block is in a three-way compression state, the force is reduced, and then the remaining force drives the arc plate to move along the arc groove.

[0017] Furthermore, a fixing column is fixedly connected to the rubber block, a semicircular block is fixedly connected to the fixing column, a mushroom-shaped groove is provided inside the upper bridge, and the mushroom-shaped groove and the semicircular block are slidably arranged.

[0018] By adopting the above technical solution, when the bridge is subjected to force, the upper bridge will push the semicircular block to move through the mushroom-shaped groove, so that the fixed column will transmit the force to the rubber block.

[0019] Furthermore, four sliding columns are slidably connected to the lower bridge, a clamping plate is fixedly connected to the sliding column, an annular groove is opened and closed on the support, a limiting plate is fixedly connected to the clamping plate, and the limiting plate is adapted to the annular groove.

[0020] By adopting the above technical solution, the support is supported by the clamping plate and maintained at the center position of the arc groove.

[0021] Furthermore, a return spring is sleeved on the sliding column, and two ends of the spring are fixedly connected to the lower bridge and the clamping plate respectively.

[0022] By adopting the above technical solution, when the support is reset, the reset spring pushes the clamping plate along the annular groove to push the support, thereby helping the support to reset faster.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, when the bridge is subjected to force and the arc plate slides in the arc groove, the lubricating grease in contact with the arc plate will be smeared in the arc groove as the arc plate slides, and in the lubricating groove blocked by it, the push spring resets and pushes the push plate to push the lubricating grease into the arc groove, so that when the support is subjected to a large force and drives the arc plate to move greatly, more lubricating grease can be squeezed out to lubricate it, so that the device can respond differently to different stress conditions of the bridge, and by controlling the output of the lubricating grease, the endurance effect of the lubricating grease when the support is in use is improved, thereby reducing the wear of the support.

[0025] 2. In the present application, when the bridge is subjected to stress, the upper bridge will push the semicircular block to move through the mushroom-shaped groove, so that the fixed column will transmit the force to the rubber block. At this time, the force is transmitted to the external support through the rubber block, so that the rubber block is in a state of three-way compression, and the force is reduced. The remaining force then drives the arc plate to move along the arc groove and is reduced through friction. As the support moves, the sliding column is pushed to move into the lower bridge. When the support is reset, the reset spring pushes the clamping plate along the annular groove to push the support, thereby helping the support to reset faster and keep it in the center position of the arc groove, so that the reset ability of the support device is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a bridge support in this application;

[0027] Figure 2 It is a schematic diagram of the internal structure of a bridge bearing in this application;

[0028] Figure 3 It is a schematic diagram of a bearing structure of a bridge bearing in this application;

[0029] Figure 4 is a partial cross-sectional view of a bridge bearing in the present application;

[0030] Figure 5 This application Figure 4 Enlarged schematic diagram at point A in the middle.

[0031] Description of reference numerals:

[0032] 1. Upper bridge; 2. Lower bridge; 3. Support; 4. Fixed column; 5. Semicircular block; 6. Clamping plate; 7. Sliding column; 8. Reset spring; 9. Limit plate; 10. Sealing ring; 11. Rubber block; 12. Rubber plate; 13. Arc plate; 14. Push rod; 15. Push spring; 16. Push plate; 17. Lubricating paste. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] An embodiment of the present application discloses a bridge bearing.

[0035] Reference Figure 1 and Figure 2A bridge bearing 3 includes an upper bridge 1, a bearing 3 is installed in the upper bridge 1, a lower bridge 2 is installed at the lower end of the bearing 3, a sealing ring 10 is fixedly connected between the lower bridge 2 and the bearing 3, the sealing ring 10 is a rubber sealing gasket, an arc groove is opened on the lower bridge 2, an arc plate 13 is fixedly connected to the lower end of the bearing 3, the arc plate 13 is slidably arranged with the arc groove, a lubrication structure is arranged on the lower bridge 2, and a reset structure is arranged between the lower bridge 2 and the bearing 3.

[0036] When the bridge is under stress, the upper bridge 1 will transmit the force to the support 3 through the reset structure, so that the arc plate 13 will slide along the arc groove to unload the force. In the process of unloading the force, the lubrication structure will be triggered to lubricate the arc groove and the arc plate 13, thereby reducing the friction during the movement of the support 3, making it easier to reset the support 3 and reducing the wear of the support 3, thereby extending the service life of the device and reducing frequent maintenance work.

[0037] Reference Figure 4 and Figure 5 The lubrication structure includes four circumferentially distributed lubrication grooves in the arc groove, which are shielded by the arc plate 13, and lubricating grease 17 is arranged in the lubrication groove. A push rod 14 is slidably connected inside the lower bridge 2, and a push plate 16 is fixedly connected at the end of the push rod 14. The push plate 16 is slidably connected to the arc groove, and the push plate 16 conflicts with the lubricating grease 17. A push spring 15 is sleeved on the push rod 14, and the two ends of the push spring 15 are fixedly connected to the push plate 16 and the lubricating groove respectively.

[0038] When the arc plate 13 slides in the arc groove, the lubricating paste 17 in contact with the arc plate 13 will be smeared in the arc groove as the arc plate 13 slides, and in the lubricating groove blocked by the arc plate 13, the pushing spring 15 is reset to push the pushing plate 16 to push the lubricating paste 17 into the arc groove, so that when the support 3 is subjected to a large force to drive the arc plate 13 to move greatly, more lubricating paste 17 can be squeezed out to lubricate it, so that the device can respond differently under different stress conditions of the bridge. By controlling the output amount of the lubricating paste 17, the endurance effect of the lubricating paste 17 when the support 3 is in use is improved, thereby reducing the wear of the support 3.

[0039] Reference Figure 2 and Figure 3 , Figure 4The reset structure includes a rubber plate 12 fixedly connected to the inside of the support 3, and a rubber block 11 is fixedly connected to the rubber plate 12. The rubber plate 12 is a hard rubber plate 12, and the rubber block 11 is a multi-layer adhesive rubber plate 12. A fixed column 4 is fixedly connected to the rubber block 11, and a semicircular block 5 is fixedly connected to the fixed column 4. A mushroom-shaped groove is opened inside the upper bridge 1, and the mushroom-shaped groove and the semicircular block 5 are slidably arranged. Four sliding columns 7 are slidably connected to the lower bridge 2, and a clamping plate 6 is fixedly connected to the sliding column 7. An annular groove is opened and closed on the support 3, and a limit plate 9 is fixedly connected to the clamping plate 6, and the limit plate 9 is adapted to the annular groove. A reset spring 8 is sleeved on the sliding column 7, and the two ends of the spring are fixedly connected to the lower bridge 2 and the clamping plate 6 respectively.

[0040] When the bridge is under stress, the upper bridge 1 will push the semicircular block 5 to move through the mushroom-shaped groove, so that the fixed column 4 will transmit the force to the rubber block 11. At this time, the force is transmitted to the external support 3 through the rubber block 11, so that the rubber block 11 is in a three-way compression state, and the force is reduced. Then the remaining force drives the arc plate 13 to move along the arc groove, and the friction force is reduced. As the support 3 moves, the sliding column 7 is pushed to move into the lower bridge 2. When the support 3 is reset, the reset spring 8 pushes the clamping plate 6 along the annular groove to push the support 3, thereby helping the support 3 to reset faster and keep it in the center position of the arc groove, so that the reset ability of the support 3 device is better.

[0041] Working principle: When the device is installed on the bridge, the lower bridge 2 is the pad stone installed on the top of the pier, and the upper bridge 1 is the bottom of the bridge. The device is first installed on the lower bridge 2, and then the upper bridge 1 is installed on the device.

[0042] When the bridge is subjected to stress, the upper bridge 1 will push the semicircular block 5 to move through the mushroom-shaped groove, so that the fixed column 4 transmits the force to the rubber block 11. At this time, the force is transmitted to the external support 3 through the rubber block 11, so that the rubber block 11 is in a three-way pressure state, and the force is reduced. Then the remaining force drives the arc plate 13 to move along the arc groove, and the friction force is reduced. With the movement of the support 3, the sliding column 7 is pushed to move into the lower bridge 2. When the support 3 is reset, the reset spring 8 pushes the clamping plate 6 to push the support 3 along the annular groove, thereby helping the support 3 to reset faster;

[0043] When the arc plate 13 slides in the arc groove, the lubricating paste 17 in contact with it will be smeared in the arc groove as the arc plate 13 slides, and in the lubricating groove blocked by it, the pushing spring 15 is reset to push the push plate 16 to push the lubricating paste 17 into the arc groove, so that when the support 3 is driven by a large force to move the arc plate 13 in a large range, more lubricating paste 17 can be squeezed out to lubricate it. By controlling the output amount of the lubricating paste 17, the endurance effect of the lubricating paste 17 when the support 3 is in use is improved.

Claims

1. A bridge support, comprising an upper bridge (1), characterized in that: A support (3) is installed in the upper bridge (1), and a lower bridge (2) is installed at the lower end of the support (3). A sealing ring (10) is fixedly connected between the lower bridge (2) and the support (3), and the sealing ring (10) is a rubber sealing gasket. An arc groove is opened on the lower bridge (2), and an arc plate (13) is fixedly connected to the lower end of the support (3). The arc plate (13) is slidably arranged with the arc groove. A lubrication structure is arranged on the lower bridge (2), and a reset structure is arranged between the lower bridge (2) and the support (3).

2. A bridge bearing according to claim 1, characterized in that: The lubrication structure comprises four circumferentially distributed lubrication grooves provided in the arc-shaped groove, the lubrication grooves being shielded by the arc-shaped plate (13), and lubrication grease (17) being provided in the lubrication grooves.

3. A bridge bearing according to claim 2, characterized in that: A push rod (14) is slidably connected inside the lower bridge (2), a push plate (16) is fixedly connected to the end of the push rod (14), the push plate (16) is slidably connected to the arc groove, and the push plate (16) is in contact with the lubricating paste (17).

4. A bridge bearing according to claim 3, characterized in that: A push spring (15) is sleeved on the push rod (14), and two ends of the push spring (15) are respectively fixedly connected to the push plate (16) and the lubrication groove.

5. A bridge bearing according to claim 1, characterized in that: The resetting structure comprises a rubber plate (12) fixedly connected to the inside of the support (3), a rubber block (11) fixedly connected to the rubber plate (12), the rubber plate (12) being a hard rubber plate (12), and the rubber block (11) being a multi-layer adhesive rubber plate (12).

6. A bridge bearing according to claim 5, characterized in that: The rubber block (11) is fixedly connected to a fixing column (4), the fixing column (4) is fixedly connected to a semicircular block (5), a mushroom-shaped groove is provided inside the upper bridge (1), and the mushroom-shaped groove and the semicircular block (5) are slidably arranged.

7. A bridge bearing according to claim 5, characterized in that: The lower bridge (2) is slidably connected to four sliding columns (7), the sliding columns (7) are fixedly connected to a clamping plate (6), the support (3) is provided with an annular groove, the clamping plate (6) is fixedly connected to a limit plate (9), and the limit plate (9) is adapted to the annular groove.

8. A bridge bearing according to claim 7, characterized in that: A return spring (8) is sleeved on the sliding column (7), and two ends of the spring are respectively fixedly connected to the lower bridge (2) and the clamping plate (6).

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