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CN-224199769-U - Multilayer composite lead rubber bridge support

CN224199769UCN 224199769 UCN224199769 UCN 224199769UCN-224199769-U

Abstract

The utility model relates to a multilayer composite lead rubber bridge support, which comprises two connecting parts, a plurality of dampers, two times the number of multidirectional adjusting parts of the dampers and a central damping part, wherein the two connecting parts are respectively connected and fixed with a bridge and a buttress, the central damping part is inserted between the two connecting parts, the plurality of dampers are uniformly distributed on the outer side of the central damping part, the top end and the bottom end of each damper are respectively connected and fixed with one multidirectional adjusting part, and each multidirectional adjusting part is arranged on the adjacent connecting part. Through the installation setting of the multidirectional adjustment parts at the two ends of the damper, the rubber bridge support can realize the damping energy absorption in multiple directions through the damper in the installation and use process, and the central damping part is assisted to share the vibration and the impact born by the support jointly, so that the installation and use reliability of the rubber bridge support is improved.

Inventors

  • ZHANG FUZENG
  • LI KAI
  • ZHANG FENG
  • DU MING
  • WU YONGHUI

Assignees

  • 衡水路通工程橡胶有限公司

Dates

Publication Date
20260505
Application Date
20250603

Claims (6)

  1. 1. The multilayer composite lead rubber bridge support comprises 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 with a bridge and a buttress, the central damping part (40) is inserted between the two connecting parts (10), the plurality of dampers (30) are uniformly distributed on the outer side of the central damping part (40), the multilayer composite lead rubber bridge support is characterized by further comprising a plurality of multidirectional adjusting parts (20) twice as many as the dampers (30), the top end and the bottom end of each damper (30) are respectively connected and fixed with one multidirectional adjusting part (20), each multidirectional adjusting part (20) is arranged on the adjacent connecting part (10), The multidirectional adjusting part (20) comprises two semi-cylindrical seats (21), two semi-cylindrical seats (22), a movable ball (23) and a convex column (24), wherein the two semi-cylindrical seats (21) are fixedly connected with the connecting part (10) towards one side of the connecting part (10), the two semi-cylindrical seats (21) are symmetrical to each other and enclose into a cylindrical structure with a cavity, the two semi-cylindrical seats (22) are respectively formed on the two semi-cylindrical seats (21), the two semi-cylindrical seats (22) are symmetrical to each other and enclose into a semi-spherical structure with a cavity, the movable ball (23) is enclosed by the two semi-cylindrical seats (21) and the two semi-cylindrical seats (22), the movable ball (23) is provided with a movable space in the cavities of the two semi-cylindrical seats (21) and the two semi-cylindrical seats (22), one end of the convex column (24) is fixedly connected with the movable ball (23), and the other end of the convex column (24) penetrates out of the two semi-cylindrical seats (22).
  2. 2. The multi-layer composite lead rubber bridge support of claim 1, wherein semicircular openings (221) are formed in the hemispherical base (22), and the diameter of a circle surrounded by the two openings (221) is larger than that of the convex column (24).
  3. 3. The multilayer composite lead rubber bridge support of claim 2, wherein the spherical diameter of the movable ball (23) is larger than the circular diameter surrounded by the two openings (221), and the spherical diameter of the movable ball (23) is matched with the inner diameter of the hemispherical seat (22).
  4. 4. The multi-layered composite lead rubber bridge support of claim 1, wherein the connection part (10) comprises a base (11), a positioning ring (12) and a plurality of connecting sleeves (13), the positioning ring (12) is formed at the center of one side of the base (11) facing the center damping part (40), one end of the center damping part (40) close to the positioning ring (12) is inserted into the positioning ring (12), and the plurality of connecting sleeves (13) are arranged outside the positioning ring (12) at intervals and are formed on the base (11).
  5. 5. The multi-layer composite lead rubber bridge support of claim 4, wherein the connecting portion (10) further comprises a plurality of reinforcing ribs (14), one reinforcing rib (14) is formed between the positioning ring (12) and each connecting sleeve (13), and each reinforcing rib (14) extends to be connected with the inner side wall of the base (11).
  6. 6. The multi-layer composite lead rubber bridge support of claim 1, wherein the central shock absorption portion (40) comprises a plurality of steel sheets (41), a plurality of rubber bodies (42) and two lead core columns (43), the steel sheets (41) and the rubber bodies (42) are distributed in a staggered mode, two ends of the central shock absorption portion (40) are arranged to be steel sheets (41), the two lead core columns (43) are respectively located at the centers of two ends of the central shock absorption portion (40), the two lead core columns (43) are respectively fixedly connected with the steel sheets (41) at two ends of the central shock absorption portion (40), and the sum of the lengths of the two lead core columns (43) is smaller than the integral height of the central shock absorption portion (40).

Description

Multilayer composite lead rubber bridge support Technical Field The utility model relates to the technical field of rubber bridge supports, in particular to a multilayer composite lead rubber bridge support. Background The bridge support is an important component in the bridge structure, bears the weight and load of the bridge, and ensures the stability and safety of the bridge structure. However, when the bridge is loaded, the bridge vibrates due to the load, which causes serious damage and influence to the bridge structure. Therefore, in order to reduce the vibration of the bridge structure and prolong the service life of the bridge structure, an effective damping measure needs to be adopted, and the common practice is to additionally install a support on the supporting position of the bridge, and the work of energy absorption and damping is realized by using the bridge support. In the patent of the utility model of CN219364307U, for example, a multi-layer composite lead rubber bridge support is proposed, which shares the vibration and impact of the support with the lead rubber composite through a damper, thereby improving the reliability and durability of the installation and use of the rubber bridge support. However, in the multilayer composite lead rubber bridge support, the top end of the damper is hinged on the top plate, and the tail end of the damper is hinged on the bottom plate, so that the damper can only generate deflection movement in a single direction, and the damper positioned on the diagonal line can generate movable interference to influence the micro deflection movement of the damper on the bridge. Disclosure of utility model (One) solving the technical problems The utility model provides a multilayer composite lead rubber bridge support, which solves the problems raised in the background technology. (II) technical scheme The multi-layer composite lead rubber bridge support comprises two connecting parts, a plurality of dampers, two multi-directional adjusting parts twice the number of the dampers and a central damping part, wherein the two connecting parts are respectively connected and fixed with a bridge and a buttress, the central damping part is inserted between the two connecting parts, the plurality of dampers are uniformly distributed on the outer side of the central damping part, the top end and the bottom end of each damper are respectively connected and fixed with one multi-directional adjusting part, each multi-directional adjusting part is arranged on the adjacent connecting part, each multi-directional adjusting part comprises two semi-cylindrical seats, a movable ball and a convex column, one side of each semi-cylindrical seat facing the connecting part is fixedly connected with the connecting part, the two semi-cylindrical seats are mutually symmetrical and enclose a cylindrical structure with a cavity, the two semi-cylindrical seats are respectively formed on the two semi-cylindrical seats, the two semi-cylindrical seats are mutually symmetrical and enclose a semi-cylindrical structure with a cavity, the two semi-cylindrical seats are movably enclosed by the two semi-cylindrical seats and the two semi-cylindrical seats are movably arranged on the inner side of the two semi-cylindrical seats, the semi-cylindrical seats are movably arranged on the inner side of the semi-cylindrical seats, the semi-cylindrical seats are movably arranged on the semi-cylindrical structures, and the semi-cylindrical structures are fixedly arranged on the semi-cylindrical structures, and the semi-cylindrical structures are respectively, and the semi spherical. Preferably, semicircular openings are formed in the hemispherical seat, the diameter of a circle formed by the two openings is larger than that of the convex column, the diameter of a sphere of the movable ball is larger than that of a circle formed by the two openings, and the diameter of the sphere of the movable ball is matched with the inner diameter of the hemispherical seat. 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 a center of one side of the base facing the central damping portion, and one end of the central damping portion, which is close to the positioning ring, is inserted into the positioning ring, the plurality of connecting sleeves are arranged at outer sides of the positioning ring at intervals and are formed on the base, the connecting portion further includes a plurality of reinforcing ribs, one reinforcing rib is formed between the positioning ring and each connecting sleeve, and each reinforcing rib extends to be connected with an inner side wall of the base. In a further preferred embodiment, the central shock absorbing portion includes a plurality of steel sheets, a plurality of rubber bodies and two lead core columns, the steel sheets and the rubber bodies are distributed in a staggered manner,