Bridge support

Abstract

The utility model discloses a bridge support which comprises a first supporting body and a second supporting body which abut against a bridge superstructure and a cover beam respectively, the first supporting body and the second supporting body are connected through a first elastic damping unit comprising a first elastic damping piece, and the first elastic damping unit can deform vertically. The first supporting body moves in the direction close to or away from the second supporting body; a second elastic damping unit is further included. When the first supporting body moves in the direction close to the second supporting body, the first supporting body can abut against the force transmission part to move, then the force transmission part abuts against the reciprocating piece to move in the first movement direction, and at the moment, the second elastic damping piece is stretched under the movement effect of the reciprocating piece; part of vibration kinetic energy transmitted from the bridge superstructure to the bridge support passes through the force transmission part and is converted into tensile elastic potential energy needed when the second elastic damping piece is stretched, and the vibration kinetic energy of the bridge superstructure is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of bridge structures, and specifically relates to a bridge bearing. Background Art

[0002] With the rapid development of my country's infrastructure industry, the level of bridge construction in my country has also been greatly improved. The bridge includes a superstructure, a substructure and a support between the superstructure and the substructure. The substructure of the bridge usually includes piers and a cap beam on the top of the pier. The superstructure of the bridge is carried on the cap beam, and the support is located between the superstructure and the cap beam. It can reliably transfer the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge, and is an important force transmission device of the bridge.

[0003] In the prior art, since bridges are often faced with vibrations and shocks from traffic loads, special rubber bearings are installed on the span structure of the bridge, and the load of the bridge is transferred to the cap beam through the rubber bearings to reduce the shock of the bridge. However, the rubber bearing structure used in the existing bridges is relatively simple, and only uses the internal rubber blocks to achieve shock absorption by utilizing their own material properties. The shock absorption effect is relatively simple, resulting in poor shock absorption effect on the bridge during use, which in turn affects the service life of the bridge. Moreover, the poor shock absorption effect of the bridge bearings will also cause a certain degree of noise during the vibration of the bridge. If the bridge is built in an area with human activities, such as an urban commercial area, it will cause greater noise interference to surrounding residents. Utility Model Content

[0004] The present application provides a bridge bearing to solve the technical problem of poor shock absorption effect of traditional bridge bearings.

[0005] The technical solution adopted in this application is:

[0006] A bridge bearing comprises a first support body and a second support body respectively abutting against a bridge superstructure and a cap beam, the first support body and the second support body are connected by a first elastic shock absorbing unit including a first elastic shock absorbing member, the first elastic shock absorbing unit can be vertically deformed so that the first support body moves in a direction approaching the second support body or away from the second support body; and also comprises a second elastic shock absorbing unit, the second elastic shock absorbing unit comprises a guide part and a force transmission part, the guide part is provided with a second elastic shock absorbing member and a reciprocating member connected to the second elastic shock absorbing member, the force transmission part is rotatably connected to the first support body and the reciprocating member respectively, the reciprocating member has a first movement direction and a second movement direction reciprocating along the guide part, when the first support body approaches the second support body, the reciprocating member moves in the first movement direction under the driving action of the force transmission part and stretches the second elastic shock absorbing member, when the first support body moves away from the second support body, the reciprocating member moves in the second movement direction under the driving action of the force transmission part and compresses the second elastic shock absorbing member.

[0007] The bridge bearing described in this application also includes the following additional technical features:

[0008] One end of the guide portion is connected to the first elastic shock absorbing unit, and the other end extends in a direction away from the first elastic shock absorbing unit. The reciprocating member includes a sliding through hole adapted to the guide portion. The reciprocating member is sleeved on the guide portion through the sliding through hole and can slide along the guide portion.

[0009] Two ends of the second elastic shock absorbing member are respectively connected to the reciprocating member and the first elastic shock absorbing unit. The second elastic shock absorbing member is sleeved on the guide portion and can be extended or shortened along the extending direction of the guide portion.

[0010] The guide portion extends in a horizontal direction, and the guide portion includes two guide rods. The guide rod is provided with a stop portion at one end away from the first elastic shock-absorbing unit. When the reciprocating member abuts against the stop portion, the stop portion can limit the reciprocating member from continuing to move along the first movement direction. The two guide rods of the same guide portion are connected via the stop portion.

[0011] There are multiple second elastic shock absorbing units, and the multiple second elastic shock absorbing units are arranged at intervals in the circumferential direction of the first support body.

[0012] The first elastic shock-absorbing unit includes a plurality of shock-absorbing components arranged in sequence from top to bottom. The shock-absorbing component includes a steel plate layer located in the upper layer and a first elastic shock-absorbing member located in the lower layer. The first elastic shock-absorbing unit further includes a plurality of limiting plates extending in the vertical direction. The limiting plates and the first support body and the second support body jointly enclose a receiving cavity for receiving a plurality of the shock-absorbing components. An annular groove is provided on the first support body, and the projection of the limiting plate on the first support body falls within the annular groove. The first support body is sleeved on the limiting plate through the annular groove.

[0013] The first elastic shock-absorbing unit further includes a positioning column. One end of the positioning column is fixedly connected to the second support body, and the other end extends vertically upward. The first support body is provided with a first positioning through hole adapted to the positioning column, and the first support body is sleeved on the positioning column through the first positioning through hole. The shock-absorbing component is provided with a second positioning through hole adapted to the positioning column, and the shock-absorbing component is sleeved on the positioning column through the second positioning through hole.

[0014] An outwardly convex first rotating portion is provided at the end of the first support body. A first rotating groove is formed in the first rotating portion. One end of the force transmission portion close to the first support body is provided with a first rotating protrusion adapted to the first rotating groove. The force transmission portion realizes rotational connection with the first support body through the cooperation of the first rotating protrusion and the first rotating groove, and / or, the reciprocating member includes a second rotating portion. A second rotating groove is formed in the second rotating portion. One end of the force transmission portion close to the reciprocating member is provided with a second rotating protrusion adapted to the second rotating groove. The force transmission portion realizes rotational connection with the reciprocating member through the cooperation of the second rotating protrusion and the second rotating groove.

[0015] Due to the adoption of the above technical solutions, the beneficial effects obtained by this application are:

[0016] 1. The bridge bearing of the present application includes a first support body and a second support body respectively abutting against the bridge superstructure and the cap beam. When the bridge superstructure is vibrated and produces vertical displacement, the first support body will be squeezed to reciprocate toward and away from the second support body until the vibration is eliminated. When the first support body moves toward the second support body, the first elastic shock-absorbing unit is deformed, and the first elastic shock-absorbing member absorbs part of the kinetic energy transmitted from the bridge superstructure to the first support body, thereby reducing the vibration kinetic energy from the bridge superstructure, thereby reducing the noise generated by the bridge vibration to a certain extent; in addition, the bridge bearing of the present application is also provided with a second elastic shock-absorbing unit. When the first support body moves toward the direction approaching the second support body, the first support body will cause the force transmission part to move, and then the reciprocating member will be caused to move in the first movement direction through the force transmission part. When the bridge superstructure moves upward, the first support body resets upward. During this process, both the first and second elastic shock absorbers will undergo elastic deformation. The elastic potential energy required for their elastic deformation will offset the kinetic energy of the vibration again, thereby further improving the shock absorbing effect of the bridge support.

[0017] 2. As a preferred embodiment of the present application, one end of the guide part is connected to the first elastic shock absorbing unit, and the other end extends in a direction away from the first elastic shock absorbing unit. The reciprocating member includes a sliding through hole adapted to the guide part, and the reciprocating member is sleeved on the guide part through the sliding through hole and can slide along the guide part. With such a configuration, the first elastic shock absorbing unit not only has the function of enhancing the shock absorbing effect of the bridge bearing, but also further integrates the function of providing a mounting position for the guide part. The function is further integrated, and the structural design of the bridge bearing is optimized. In addition, the reciprocating member is sleeved on the guide part through the sliding through hole, and the reciprocating member is slidably connected to the guide part, which improves the smoothness of the reciprocating member when moving along the first movement direction and the second movement direction, and avoids the reciprocating member from getting stuck with the guide part during the movement, thereby providing a guarantee for the second elastic shock absorbing unit to stably play a shock absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic structural diagram of a bridge bearing in one implementation mode of the present application;

[0020] Figure 2 A front view of a bridge support according to an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the structure of a reciprocating member in one implementation mode of the present application;

[0022] Figure 4 This is a schematic structural diagram of a force transmission unit according to an embodiment of the present application.

[0023] in:

[0024] 1 a first support;

[0025] 2 a second support;

[0026] 3. a first elastic shock absorbing member;

[0027] 4. Guide part;

[0028] 5 force transmission part, 51 second rotating protrusion;

[0029] 6 second elastic shock absorbing member;

[0030] 7 reciprocating member, 71 second rotating groove;

[0031] 8 sliding through hole;

[0032] 9 guide rod;

[0033] 10 stopper;

[0034] 110 positioning column. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0037] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] like Figures 1 to 4As shown, a bridge bearing comprises a first support body 1 and a second support body 2 respectively abutting against a bridge superstructure and a cap beam, the first support body 1 and the second support body 2 are connected via a first elastic shock absorbing unit including a first elastic shock absorbing member 3, the first elastic shock absorbing unit can be vertically deformed so that the first support body 1 moves in a direction close to the second support body 2 or away from the second support body 2; the second elastic shock absorbing unit also comprises a guide part 4 and a force transmission part 5, the guide part 4 is provided with a second elastic shock absorbing member 6 and a force transmission part 5 connected to the second elastic shock absorbing member 6. The reciprocating member 7 is connected to the shock member 6, and the force transmission part 5 is rotatably connected to the first support body 1 and the reciprocating member 7 respectively. The reciprocating member 7 has a first movement direction and a second movement direction that reciprocate along the guide part 4. When the first support body 1 is close to the second support body 2, the reciprocating member 7 moves along the first movement direction and stretches the second elastic shock absorbing member 6 under the driving action of the force transmission part 5. When the first support body 1 is away from the second support body 2, the reciprocating member 7 moves along the second movement direction and compresses the second elastic shock absorbing member 6 under the driving action of the force transmission part 5.

[0041] The bridge bearing of the present application includes a first support body 1 and a second support body 2 which are respectively abutted against the bridge superstructure and the cap beam. When the bridge superstructure is vibrated and produces vertical displacement, the first support body 1 will be squeezed to reciprocate toward and away from the second support body 2 until the vibration is eliminated. When the first support body 1 moves toward the second support body 2, the first elastic shock-absorbing unit is deformed, and the first elastic shock-absorbing member 3 absorbs part of the kinetic energy transmitted from the bridge superstructure to the first support body 1, thereby reducing the vibration kinetic energy from the bridge superstructure, thereby reducing the noise generated by the bridge vibration to a certain extent. In addition, the bridge bearing of the present application is also provided with a second elastic shock-absorbing unit. When the first support body 1 moves toward the second support body 2, the first support body 1 will cause the force transmission part 5 to move, and then the reciprocating member 7 is forced to move in the first movement direction through the force transmission part 5. When the bridge upper structure moves upward, the first support body 1 is reset upward. During this process, both the first elastic shock absorber 3 and the second elastic shock absorber 6 will undergo elastic deformation. The elastic potential energy required for their elastic deformation will offset the vibration kinetic energy again, thereby further improving the shock absorbing effect of the bridge support.

[0042] Preferably, the first elastic shock-absorbing member 3 can be made of rubber material.

[0043] Preferably, the second elastic shock absorbing member 6 can be a spring.

[0044] As a preferred embodiment of the present application, Figures 1 to 3 As shown, one end of the guide portion 4 is connected to the first elastic shock-absorbing unit, and the other end extends in a direction away from the first elastic shock-absorbing unit. The reciprocating member 7 includes a sliding through hole 8 adapted to the guide portion 4. The reciprocating member 7 is sleeved on the guide portion 4 through the sliding through hole 8 and can slide along the guide portion 4.

[0045] Such arrangement enables the first elastic shock-absorbing unit to not only have the function of enhancing the shock-absorbing effect of the bridge bearing, but also further integrate the function of providing a mounting position for the guide part 4. The functions are further integrated, thereby optimizing the structural design of the bridge bearing. In addition, the reciprocating member 7 is sleeved on the guide part 4 through the sliding through hole 8, and the reciprocating member 7 is slidably connected to the guide part 4, thereby improving the smoothness of the reciprocating member 7 when moving along the first movement direction and the second movement direction, and avoiding the reciprocating member 7 from getting stuck with the guide part 4 during the movement, thereby providing a guarantee for the second elastic shock-absorbing unit to stably play a shock-absorbing effect.

[0046] As a preferred embodiment of this implementation, Figure 1 As shown, the two ends of the second elastic damping member 6 are respectively connected to the reciprocating member 7 and the first elastic damping unit, and the second elastic damping member 6 is sleeved on the guide portion 4 and can be extended or shortened along the extension direction of the guide portion 4. Sleeving the second elastic damping member 6 on the guide portion 4 can improve the smoothness of the movement of the second elastic damping member 6 under the driving action of the reciprocating member 7, reduce the risk of the second elastic damping member 6 getting stuck with the guide portion 4 during the movement, improve the telescopic stability of the second elastic damping member 6, and provide a guarantee for the damping stability of the second elastic damping unit.

[0047] As a preferred example under this embodiment, Figure 1 As shown, the guide portion 4 extends in the horizontal direction, and the guide portion 4 includes two guide rods 9. The guide rod 9 is provided with a stopper 10 at one end away from the first elastic damping unit. When the reciprocating member 7 abuts against the stopper 10, the stopper 10 can limit the reciprocating member 7 from continuing to move along the first movement direction. The two guide rods 9 of the same guide portion 4 are connected by the stopper 10. The guide portion 4 is configured to include two guide rods 9, each of which is sleeved with a second elastic damping member 6 and a reciprocating member 7, so as to improve the energy absorption effect of the second elastic damping unit; in addition, the stopper 10 is provided at the end of the guide rod 9, so as to prevent the reciprocating member 7 from excessively moving along the first movement direction and escaping from the guide rod 9, and at the same time, the two guide rods 9 can be connected as a whole. When the vibration kinetic energy from the force transmission portion 5 is transmitted to the second elastic damping member 6, part of the vibration kinetic energy will inevitably be transmitted to the guide rod 9, and the stopper 10 can improve the support stability of the two guide rods 9.

[0048] As a preferred embodiment of the present application, there are multiple second elastic shock absorbing units, and the multiple second elastic shock absorbing units are arranged at intervals in the circumferential direction of the first support body 1. By setting up multiple second elastic shock absorbing units, the vibration absorption effect of the bridge support can be improved. This embodiment does not limit the arrangement of the second elastic shock absorbing units, which can be adaptively adjusted according to the structural form of the first support body 1. In one embodiment, the first support body 1 is configured as follows: Figure 1 In the square structure shown, the number of the second elastic shock-absorbing units can be set to four and respectively arranged on the four sides of the first support body 1; in another embodiment, if the first support body 1 is a disc-shaped structure, the number of the second elastic shock-absorbing units can be set to two, three or other numbers according to design requirements.

[0049] As a preferred embodiment of the present application, the first elastic shock-absorbing unit includes a plurality of shock-absorbing components arranged in sequence from top to bottom, the shock-absorbing components include a steel plate layer located on the upper layer and a first elastic shock-absorbing member 3 located on the lower layer, the first elastic shock-absorbing unit also includes a plurality of limit plates extending in the vertical direction, the limit plates and the first support body 1 and the second support body 2 together form a accommodating cavity for accommodating the plurality of shock-absorbing components, an annular groove is provided on the first support body 1, the projection of the limit plate onto the first support body 1 falls within the annular groove, and the first support body 1 is sleeved on the limit plate through the annular groove. Arranging multiple shock-absorbing components can improve the shock-absorbing effect of the first elastic shock-absorbing unit. At the same time, a steel plate layer is provided in the shock-absorbing component, which can improve the supporting stability of the first elastic shock-absorbing unit for the first supporting body 1; and by arranging multiple vertical limit plates, the steel plate layer and the first elastic shock-absorbing member 3 can be stopped and limited. When the first supporting body 1 moves toward or away from the second supporting body 2, it will inevitably lead to the vertical deformation of the first elastic shock-absorbing member 3, and the steel plate layer will also shift with the deformation of the first elastic shock-absorbing member 3. The steel plate layer and the first elastic shock-absorbing member 3 will also produce vibration during the vertical deformation process. The first support body 1 has a tendency to shift in the horizontal direction, and the limit plate can limit the lateral movement of the two, thereby ensuring the stability of the steel plate layer and the first elastic shock-absorbing member 3 in the horizontal position, avoiding the poor shock-absorbing effect caused by the horizontal misalignment of the steel plate layer and the first elastic shock-absorbing member 3 and the influence on the poor supporting effect of the first support body 1; in addition, the first support body 1 is provided with an annular groove, and is sleeved on the limit plate through the annular groove, so that the first support body 1 can move along the limit plate during the vertical movement, avoiding the occurrence of the first support body 1 movement deviation phenomenon due to vibration or other factors, which helps to improve the structural stability of the bridge bearing.

[0050] As a preferred embodiment under this preferred embodiment, the first elastic shock absorbing unit further includes a positioning column 110, one end of which is fixedly connected to the second support body 2, and the other end extends vertically upward, the first support body 1 is provided with a first positioning through hole adapted to the positioning column 110, the first support body 1 is sleeved on the positioning column 110 through the first positioning through hole, and the shock absorbing assembly is provided with a second positioning through hole adapted to the positioning column 110, the shock absorbing assembly is sleeved on the positioning column 110 through the second positioning through hole. With such a configuration, the positioning column 110 plays a role in lateral positioning of the steel plate layer and the first elastic shock absorbing member 3, further ensuring the position stability of the shock absorbing assembly in the horizontal direction, and the positioning column 110 can also guide the vertical displacement of the first support body 1, so that the first support body 1 moves along the extension direction of the positioning column 110, sharing the limiting guide pressure of the limiting plate, which helps to improve the structural stability of the bridge bearing.

[0051] The present application does not limit the rotational connection method of the force transmission part 5, the first support body 1 and the reciprocating member 7, and it can adopt any one of the following embodiments:

[0052] Embodiment 1: A first convex rotating portion is provided at the end of the first support body 1, and a first rotating groove is provided in the first rotating portion. A first rotating protrusion adapted to the first rotating groove is provided at one end of the force transmission portion 5 close to the first support body 1, and the force transmission portion 5 is connected to the first support body 1 by the cooperation between the first rotating protrusion and the first rotating groove. The first rotating portion is provided to protrude from the first support body 1, so as to avoid grooving or punching on the first support body 1, which helps to maintain the integrity of the structure of the first support body 1, thereby helping to improve the structural strength of the first support body 1. Preferably, two first rotating grooves are symmetrically provided, and there are also two first rotating protrusions. The two first rotating protrusions are respectively inserted into the two first rotating grooves, which can improve the stability of the relative rotation between the reciprocating member 7 and the first support body 1.

[0053] Embodiment 2: The reciprocating member 7 includes a second rotating portion, the second rotating portion is provided with a second rotating groove 71, and the end of the force transmission portion 5 close to the reciprocating member 7 is provided with a second rotating protrusion 51 adapted to the second rotating groove 71, and the force transmission portion 5 is rotatably connected with the reciprocating member 7 through the cooperation between the second rotating protrusion 51 and the second rotating groove 71. Preferably, the second rotating grooves 71 are symmetrically arranged in two numbers, and the second rotating protrusions 51 are also two, and the two second rotating protrusions 51 are respectively inserted into the two second rotating grooves 71, so that the relative rotation stability of the reciprocating member 7 and the force transmission portion 5 can be improved.

[0054] Embodiment three: A first protruding rotating portion is provided at the end of the first supporting body 1, and a first rotating groove is provided in the first rotating portion. An end of the force transmitting portion 5 close to the first supporting body 1 is provided with a first rotating protrusion matched with the first rotating groove. The force transmitting portion 5 is rotationally connected to the first supporting body 1 through the cooperation between the first rotating protrusion and the first rotating groove. The reciprocating member 7 includes a second rotating portion, and the second rotating portion is provided with a second rotating groove 71. An end of the force transmitting portion 5 close to the reciprocating member 7 is provided with a second rotating protrusion 51 matched with the second rotating groove 71. The force transmitting portion 5 is rotationally connected to the reciprocating member 7 through the cooperation between the second rotating protrusion 51 and the second rotating groove 71.

[0055] Specifically, when the upper structure of the bridge vibrates, the upper structure of the bridge will be displaced in the vertical direction, thereby squeezing the first support body 1. The first support body 1 is displaced, thereby squeezing the first elastic shock-absorbing unit, and the first elastic support body will then undergo vertical deformation. Part of the vibration kinetic energy transmitted by the first support body 1 is absorbed and transformed during the deformation process of the first elastic support body, and the vibration kinetic energy is partially absorbed; and with the vertical displacement of the first support body 1, the force transmission part 5 is synchronously driven to move, and the force transmission part 5 pushes the reciprocating part 7 to move along the first movement direction, thereby stretching the second elastic shock-absorbing part 6. In this process, the vibration kinetic energy transmitted by the upper structure of the bridge passes through the first support body 1, the force transmission part 5, the reciprocating part 7, and the second elastic shock-absorbing part 6 in sequence, and then is converted into the elastic potential energy required for the elastic deformation of the second elastic shock-absorbing part 6 during the stretching process of the second elastic shock-absorbing part 6, thereby realizing the secondary conversion of the vibration kinetic energy.

[0056] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0057] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0058] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A bridge bearing, characterized in that: The invention comprises a first support body and a second support body respectively abutting against the bridge superstructure and the cap beam, wherein the first support body and the second support body are connected via a first elastic shock absorbing unit including a first elastic shock absorbing member, and the first elastic shock absorbing unit can be vertically deformed so that the first support body moves in a direction close to or away from the second support body; It also includes a second elastic shock absorbing unit, which includes a guide part and a force transmission part. The guide part is provided with a second elastic shock absorbing member and a reciprocating member connected to the second elastic shock absorbing member. The force transmission part is rotatably connected to the first support body and the reciprocating member respectively. The reciprocating member has a first movement direction and a second movement direction that reciprocates along the guide part. When the first support body approaches the second support body, the reciprocating member moves along the first movement direction and stretches the second elastic shock absorbing member under the driving action of the force transmission part. When the first support body moves away from the second support body, the reciprocating member moves along the second movement direction and compresses the second elastic shock absorbing member under the driving action of the force transmission part.

2. The bridge bearing according to claim 1, characterized in that: One end of the guide portion is connected to the first elastic shock absorbing unit, and the other end extends in a direction away from the first elastic shock absorbing unit. The reciprocating member includes a sliding through hole adapted to the guide portion. The reciprocating member is sleeved on the guide portion through the sliding through hole and can slide along the guide portion.

3. The bridge bearing according to claim 2, characterized in that: Two ends of the second elastic shock absorbing member are respectively connected to the reciprocating member and the first elastic shock absorbing unit. The second elastic shock absorbing member is sleeved on the guide portion and can be extended or shortened along the extending direction of the guide portion.

4. The bridge bearing according to claim 3, characterized in that: The guide portion extends in a horizontal direction, and the guide portion includes two guide rods. The guide rod is provided with a stop portion at one end away from the first elastic shock-absorbing unit. When the reciprocating member abuts against the stop portion, the stop portion can limit the reciprocating member from continuing to move along the first movement direction. The two guide rods of the same guide portion are connected via the stop portion.

5. The bridge bearing according to any one of claims 1 to 4, characterized in that: There are multiple second elastic shock absorbing units, and the multiple second elastic shock absorbing units are arranged at intervals in the circumferential direction of the first support body.

6. The bridge bearing according to claim 1, characterized in that: The first elastic shock-absorbing unit includes a plurality of shock-absorbing components arranged in sequence from top to bottom, the shock-absorbing components include a steel plate layer located on the upper layer and a first elastic shock-absorbing member located on the lower layer, the first elastic shock-absorbing unit also includes a plurality of limit plates extending in the vertical direction, the limit plates and the first support body and the second support body together form a receiving cavity for receiving the plurality of shock-absorbing components, an annular groove is provided on the first support body, the projection of the limit plate onto the first support body falls within the annular groove, and the first support body is sleeved on the limit plate through the annular groove.

7. The bridge bearing according to claim 6, characterized in that: The first elastic shock-absorbing unit also includes a positioning column, one end of which is fixedly connected to the second support body, and the other end extends vertically upward, the first support body is provided with a first positioning through hole adapted to the positioning column, the first support body is sleeved on the positioning column through the first positioning through hole, the shock-absorbing assembly is provided with a second positioning through hole adapted to the positioning column, and the shock-absorbing assembly is sleeved on the positioning column through the second positioning through hole.

8. The bridge bearing according to claim 1, characterized in that: The end of the first supporting body is provided with a first protruding rotating part, the first rotating part is provided with a first rotating groove, the end of the force transmitting part close to the first supporting body is provided with a first rotating protrusion adapted to the first rotating groove, and the force transmitting part realizes a rotational connection with the first supporting body through the cooperation between the first rotating protrusion and the first rotating groove, and / or the reciprocating member includes a second rotating part, the second rotating part is provided with a second rotating groove, and the end of the force transmitting part close to the reciprocating member is provided with a second rotating protrusion adapted to the second rotating groove, and the force transmitting part realizes a rotational connection with the reciprocating member through the cooperation between the second rotating protrusion and the second rotating groove.

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