Multi-layer composite lead rubber bridge support

Abstract

The utility model relates to a multi-layer composite lead core rubber bridge support which comprises two connecting parts, a plurality of dampers, multi-direction adjusting parts and a center damping part, the number of the multi-direction adjusting parts is two times that of the dampers, the two connecting parts are fixedly connected with a bridge and a buttress respectively, and the center damping part is inserted between the two connecting parts. The multiple dampers are evenly distributed on the outer side of the center damping part, the top end and the bottom end of each damper are each fixedly connected with one multi-direction adjusting part, and each multi-direction adjusting part is installed on the adjacent connecting part. According to the rubber bridge support, the multi-direction adjusting parts at the two ends of the damper are installed, so that in the installation and use process of the rubber bridge support, damping energy absorption in multiple directions can be achieved through the damper, the center damping part is assisted to share vibration and impact borne by the support together, and therefore the installation and use reliability of the rubber bridge support is improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber bridge bearing technology, specifically a multi-layer composite lead-core rubber bridge bearing. Background Technology

[0002] Bridge bearings are a crucial component of bridge structures, bearing the weight and loads of the bridge and ensuring its stability and safety. However, when a bridge is under load, it vibrates, which can cause serious damage and impact on the structure. Therefore, to reduce bridge vibration and extend its service life, effective vibration damping measures are needed. A common practice is to install bearings at the support locations on the bridge, utilizing these bearings to absorb energy and reduce vibration.

[0003] For example, a utility model patent with Chinese patent publication number CN219364307U proposes a multi-layer composite lead-core rubber bridge bearing. This bearing improves the reliability and durability of the rubber bridge bearing by sharing the vibration and impact load between the damper and the lead-core rubber composite. However, in this multi-layer composite lead-core rubber bridge bearing, the top end of the damper is hinged to the top plate, and the tail end is hinged to the bottom plate. This means that the damper can only deflect in a single direction, and the dampers located diagonally will interfere with each other, affecting their ability to deflect small amounts of the bridge. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a multi-layer composite lead-core rubber bridge bearing, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite lead-core rubber bridge bearing, comprising two connecting parts, several dampers, a multi-directional adjustment part with twice the number of dampers, and a central damping part. The two connecting parts are respectively connected and fixed to the bridge and the pier. The central damping part is inserted between the two connecting parts. The several dampers are evenly distributed on the outside of the central damping part. The top and bottom ends of each damper are connected and fixed to a multi-directional adjustment part, and each multi-directional adjustment part is installed on an adjacent connecting part. The multi-directional adjustment part includes two semi-cylindrical seats... The system comprises two hemispherical seats, a movable ball, and a protruding column. The two hemispherical seats are fixedly connected to the connecting part on the side facing the connecting part. The two hemispherical seats are symmetrical to each other and form a cylindrical structure with a cavity. The two hemispherical seats are respectively formed on the two hemispherical seats. The movable ball is surrounded inside by the two hemispherical seats and the two hemispherical seats, and the movable ball has a space to move within the cavity of the two hemispherical seats and the two hemispherical seats. One end of the protruding column is fixedly connected to the movable ball, and the other end of the protruding column extends to the outside of the two hemispherical seats.

[0008] Preferably, a semi-circular notch is formed on the hemispherical seat, the diameter of the circle formed by the two notches is larger than the diameter of the protruding column, the diameter of the movable ball is larger than the diameter of the circle formed by the two notches, and the diameter of the movable ball is adapted to the inner diameter of the hemispherical seat.

[0009] In a further preferred embodiment, the connecting portion includes a base, a positioning ring, and a plurality of connecting sleeves. The positioning ring is formed at the center of the base on the side facing the central damping portion, and the end of the central damping portion near the positioning ring is inserted into the positioning ring. The plurality of connecting sleeves are spaced apart and arranged outside the positioning ring and formed on the base. The connecting portion also includes a plurality of reinforcing ribs. A reinforcing rib is formed between the positioning ring and each connecting sleeve, and each reinforcing rib extends to connect with the inner sidewall of the base.

[0010] In a further preferred embodiment, the central damping section includes multiple steel sheets, multiple rubber sheets, and two lead core columns. The steel sheets and rubber sheets are staggered and distributed among each other. Both ends of the central damping section are made of steel sheets. The two lead core columns are located at the center of both ends of the central damping section, and the two lead core columns are fixedly connected to the steel sheets at both ends of the central damping section. The sum of the lengths of the two lead core columns is less than the overall height of the central damping section.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a multi-layer composite lead-core rubber bridge bearing, which has the following beneficial effects:

[0013] In this invention, by installing multi-directional adjustment parts at both ends of the damper, the rubber bridge bearing can achieve multi-directional damping and energy absorption during installation and use, and assist the central shock absorber in sharing the vibration and impact on the bearing, thereby improving the reliability of the rubber bridge bearing installation and use. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a multi-layer composite lead-core rubber bridge bearing according to the implementation plan;

[0015] Figure 2 This is a structural schematic diagram of the connection part according to the implementation plan;

[0016] Figure 3 This is a structural schematic diagram of the multi-directional adjustment unit according to the implementation plan;

[0017] Figure 4 for Figure 3 A schematic diagram of the multi-directional adjustment section from another angle;

[0018] Figure 5 This is a structural schematic diagram of the central damping section according to the implementation plan.

[0019] In the diagram: 10. Connecting part; 11. Base; 12. Positioning ring; 13. Connecting sleeve; 14. Reinforcing rib; 20. Multi-directional adjustment part; 21. Semi-cylindrical seat; 22. Hemispherical seat; 221. Notch; 23. Movable ball; 24. Protruding column; 30. Damper; 40. Central shock absorber; 41. Steel sheet; 42. Rubber body; 43. Lead core column. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1A multi-layer composite lead-core rubber bridge bearing includes two connecting parts 10, several dampers 30, a multi-directional adjustment part 20 (twice the number of dampers 30), and a central damping part 40. The two connecting parts 10 are used to connect and fix to the bridge and the piers below the bridge, respectively. The central damping part 40 is inserted between the two connecting parts 10 and is used to reduce the vibration and impact of the bridge. Several dampers 30 are evenly distributed on the outer side of the central damping part 40. The top and bottom ends of each damper 30 are connected and fixed to a multi-directional adjustment part 20, and each multi-directional adjustment part 20 is installed on an adjacent connecting part 10. With the multi-directional adjustment parts 20 capable of multi-directional positional adjustment, the dampers 30 can achieve multi-directional damping and energy absorption, and assist the central damping part 40 in sharing the vibration and impact on the bearing, thereby improving the reliability of the rubber bridge bearing installation and use.

[0022] See Figure 2 The connecting portion 10 may include a base 11, a positioning ring 12, multiple connecting sleeves 13, and multiple reinforcing ribs 14. The positioning ring 12 is formed at the center of the base 11 on the side facing the central damping portion 40, and the end of the central damping portion 40 near the positioning ring 12 can be inserted into the positioning ring 12 for positioning. Multiple connecting sleeves 13 are spaced apart on the outside of the positioning ring 12 and formed on the base 11. When connecting and fixing the connecting portion 10 to the bridge and piers, bolts or other locking devices can be inserted into the connecting sleeves 13 and connected to the bridge or piers. A reinforcing rib 14 is formed between the positioning ring 12 and each connecting sleeve 13, and each reinforcing rib 14 extends to connect with the inner wall of the base 11. The reinforcing ribs 14 can be used to enhance the overall mechanical strength of the connecting portion 10.

[0023] See Figure 3 and Figure 4The multi-directional adjustment part 20 includes two semi-cylindrical seats 21, two hemispherical seats 22, a movable ball 23, and a protruding column 24. The two semi-cylindrical seats 21 are fixedly connected to the base 11 in the connecting part 10 on the side facing the connecting part 10, and the two semi-cylindrical seats 21 symmetrically form a cylindrical structure with a cavity. The two hemispherical seats 22 are respectively formed on the two semi-cylindrical seats 21, and the two hemispherical seats 22 symmetrically form a hemispherical structure with a cavity. The movable ball 23 is enclosed inside the two semi-cylindrical seats 21 and the two hemispherical seats 22, and the diameter of the movable ball 23 is adapted to the inner diameter of the hemispherical seats 22, so that the movable ball 23 has deflection space within the cavities of the two semi-cylindrical seats 21 and the two hemispherical seats 22. A semi-circular notch 221 is formed on the hemispherical seat 22. One end of the protruding post 24 is fixedly connected to the movable ball 23, and the other end of the protruding post 24 extends through the notch 221 to the outside of the two hemispherical seats 22. The diameter of the circle formed by the two notches 221 is larger than the diameter of the protruding post 24, and the diameter of the movable ball 23 is larger than the diameter of the circle formed by the two notches 221, so that when the movable ball 23 deflects, the protruding post 24 can have a certain range of deflection within the circular space formed by the two notches 221.

[0024] In this embodiment, the damper 30 can be a viscous fluid damper already available in the prior art. For example, when a hydraulic damper is used, it can consist of a cylinder, a piston, hydraulic fluid, and valves. When an external object vibrates, the piston will undergo compression and tension movements as the object moves, and the hydraulic fluid will enter and exit the cylinder through a small hole on the piston, forming a damping force.

[0025] See Figure 5 The central damping section 40 includes multiple steel sheets 41, multiple rubber sheets 42, and two lead core pillars 43. The steel sheets 41 and rubber sheets 42 are staggered, and both ends of the central damping section 40 are steel sheets 41. The two lead core pillars 43 are located at the centers of both ends of the central damping section 40, and are fixedly connected to the steel sheets 41 at both ends of the central damping section 40. The sum of the lengths of the two lead core pillars 43 is less than the overall height of the central damping section 40, thus preventing interference when the central damping section 40 deforms.

[0026] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite lead-core rubber bridge bearing, comprising two connecting parts (10), a plurality of dampers (30), and a central damping part (40), wherein the two connecting parts (10) are respectively connected and fixed to the bridge and the pier, the central damping part (40) is inserted between the two connecting parts (10), and the plurality of dampers (30) are evenly distributed on the outer side of the central damping part (40), characterized in that, It also includes twice the number of multi-directional adjustment parts (20) of the dampers (30), with each damper (30) having its top and bottom ends connected and fixed to one multi-directional adjustment part (20), and each multi-directional adjustment part (20) being mounted on an adjacent connecting part (10). The multi-directional adjustment part (20) includes two semi-cylindrical seats (21), two hemispherical seats (22), a movable ball (23), and a protruding column (24). The two semi-cylindrical seats (21) are fixedly connected to the connecting part (10) on the side facing the connecting part (10). The two semi-cylindrical seats (21) are symmetrical to each other and form a cylindrical structure with a cavity. The two hemispherical seats (22) are respectively formed on the two semi-cylindrical seats (21). The spherical seats (22) are symmetrical to each other and form a hemispherical structure with a cavity. The movable ball (23) is surrounded on the inside by two semi-cylindrical seats (21) and two hemispherical seats (22). The movable ball (23) has a space to move in the cavity of the two semi-cylindrical seats (21) and two hemispherical seats (22). One end of the protruding column (24) is fixedly connected to the movable ball (23), and the other end of the protruding column (24) extends to the outside of the two hemispherical seats (22).

2. The multi-layer composite lead-core rubber bridge bearing according to claim 1, characterized in that: The hemispherical seat (22) has a semi-circular notch (221) formed on it, and the diameter of the circle formed by the two notches (221) is larger than the diameter of the protruding column (24).

3. The multi-layer composite lead-core rubber bridge bearing according to claim 2, characterized in that: The diameter of the movable ball (23) is larger than the diameter of the circle formed by the two notches (221), and the diameter of the movable ball (23) is adapted to the inner diameter of the hemispherical seat (22).

4. The multi-layer composite lead-core rubber bridge bearing according to claim 1, characterized in that: The connecting part (10) includes a base (11), a positioning ring (12) and a plurality of connecting sleeves (13). The positioning ring (12) is formed at the center of the base (11) on the side facing the central damping part (40), and the end of the central damping part (40) near the positioning ring (12) is inserted into the positioning ring (12). The plurality of connecting sleeves (13) are spaced apart on the outside of the positioning ring (12) and formed on the base (11).

5. A multi-layer composite lead-core rubber bridge bearing according to claim 4, characterized in that: The connecting part (10) also includes multiple reinforcing ribs (14), and a reinforcing rib (14) is formed between the positioning ring (12) and each connecting sleeve (13), and each reinforcing rib (14) extends to connect with the inner wall of the base (11).

6. The multi-layer composite lead-core rubber bridge bearing according to claim 1, characterized in that: The central damping section (40) includes multiple steel sheets (41), multiple rubber bodies (42), and two lead core columns (43). The multiple steel sheets (41) and multiple rubber bodies (42) are staggered and distributed among each other. Both ends of the central damping section (40) are set as steel sheets (41). The two lead core columns (43) are located at the center of both ends of the central damping section (40), and the two lead core columns (43) are fixedly connected to the steel sheets (41) at both ends of the central damping section (40). The sum of the lengths of the two lead core columns (43) is less than the overall height of the central damping section (40).

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