Cable-stayed bridge damping structure

Abstract

The utility model relates to cable -stayed bridge damping technical field, and disclose a kind of cable -stayed bridge damping structure, including pressurizing cylinder body and the piston rod that moves in its inside, further include: install seat of pressurizing cylinder body and the one end of piston rod, the surface of pressurizing cylinder body one side is equipped with mounting ring, the one side fixedly connected of mounting ring has protective shell;The utility model can make fixed shell and movable ring interconnect by the cooperation of mounting ring and protective shell and movable ring, so that dust cannot easily contact with the connecting place of piston rod and pressurizing cylinder body, effectively reduce the influence of dust on pressurizing cylinder body, to improve the service life of the structure, and under the cooperation of positioning mechanism, protective shell can be conveniently stored, so that the structure is more convenient when overhauling pressurizing cylinder body and piston rod, solve the problem that the service life is lower when using the existing structure, and applicability is not good.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction technology for cable-stayed bridges, specifically a vibration reduction structure for cable-stayed bridges. Background Technology

[0002] The vibration of cable-stayed bridges mainly originates from wind loads, vehicle loads, and seismic action. Among these, wind-rain vibration, vortex-induced resonance, and parametric vibration of the cables are key issues. The vibration reduction structure of cable-stayed bridges is one of the core designs to ensure their safety and durability. Vibration is mainly suppressed through measures such as aerodynamic control, damping devices, auxiliary cable systems, and structural optimization.

[0003] When existing cable-stayed bridges use damping structures for vibration reduction, most of them do not protect the surface of the piston rod. Without surface protection, fine particles such as dust can easily enter the interior of the structure, thereby damaging the internal seals, causing leaks, affecting the service life of the structure, and reducing its applicability. Utility Model Content

[0004] The purpose of this invention is to provide a vibration reduction structure for cable-stayed bridges to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration reduction structure for a cable-stayed bridge, comprising a pressure cylinder body and a piston rod movable inside it, and further comprising:

[0006] A mounting base is installed on one end of the pressure cylinder body and the piston rod. A mounting ring is installed on one side of the surface of the pressure cylinder body, and a protective shell is fixedly connected to one side of the mounting ring.

[0007] A movable ring is fixed to one end of the protective shell. A fixed shell is movably connected to the surface of the movable ring. A compression spring is fixedly connected to one side of the mounting ring. Positioning mechanisms are installed on both sides of the surface of the movable ring. The positioning mechanism includes a connecting seat fixed to the surface of the movable ring. A blocking frame is rotatably connected to the inner cavity of the connecting seat. Torsion springs are fixedly connected to both sides of the inner cavity of the blocking frame. A blocking block is fixedly connected to the surface of the mounting ring.

[0008] Preferably, a flexible pad is fixedly connected to the inner cavity of the fixed shell, and the flexible pad is used in conjunction with the movable ring.

[0009] Preferably, the protective shell has a flexible structure design and is used in conjunction with the piston rod.

[0010] Preferably, the movable ring has an L-shaped cross-sectional design, and the surface of the movable ring is movably connected to the inner wall of the fixed shell.

[0011] Preferably, one side of the blocking block and one side of the blocking frame are both designed with an inclined structure, and the blocking block and the blocking frame are used in conjunction.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the cooperation of the mounting ring, protective shell, and movable ring, allows the fixed shell and movable ring to connect with each other, preventing dust from easily contacting the connection between the piston rod and the pressure cylinder body. This effectively reduces the impact of dust on the pressure cylinder body, thereby extending the service life of the structure. Furthermore, with the assistance of the positioning mechanism, the protective shell can be easily stored, making it more convenient to inspect and maintain the pressure cylinder body and piston rod. This effectively improves the applicability of the structure and solves the problems of low service life and poor applicability of existing structures. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a partial three-dimensional cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Pressure cylinder body; 2. Piston rod; 3. Mounting seat; 4. Mounting ring; 5. Protective shell; 6. Movable ring; 7. Fixed shell; 8. Compression spring; 9. Positioning mechanism; 91. Connecting seat; 92. Blocking frame; 93. Torsion spring; 94. Blocking block; 10. Flexible pad. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4As shown, a vibration reduction structure for a cable-stayed bridge includes a pressure cylinder body 1. A piston rod 2 is movably connected inside the pressure cylinder body 1. The piston rod 2 works in conjunction with the pressure cylinder body 1. Under this action, the medium inside the pressure cylinder body 1 buffers and dampens vibrations when the piston rod 2 moves, thereby achieving a vibration reduction effect on the bridge. Mounting seats 3 are installed at one end of both the pressure cylinder body 1 and the piston rod 2. The mounting seats 3 facilitate the installation of the pressure cylinder body 1 and the piston rod 2, preventing them from moving easily and effectively improving their stability. A mounting base 3 is installed on one side of the surface of the pressure cylinder body 1. There is an mounting ring 4, and a protective shell 5 is fixedly connected to one side of the mounting ring 4. The protective shell 5 is a flexible structure design and works in conjunction with the piston rod 2. A movable ring 6 is fixedly connected to one end of the protective shell 5, and a fixed shell 7 is movably connected to the surface of the movable ring 6. The inner wall of the fixed shell 7 is fixedly connected to a point on the surface of the piston rod 2. Under this action, the surface of the piston rod 2 can be blocked by the cooperation of the protective shell 5, thereby reducing the possibility of dust easily contacting the piston rod 2, effectively improving the dust blocking effect, and reducing the possibility of dust contacting the piston rod 2 and affecting the vibration damping effect of the structure. The mounting ring 4 is fixedly connected to one side of the piston rod 2. A compression spring 8 is attached, with its other end fixedly connected to the surface of the movable ring 6. Under this action, the compression spring 8 continuously applies force to the movable ring 6, allowing it to fit snugly against the interior of the fixed shell 7, effectively improving the stability of the protective shell 5 during use. The movable ring 6 has an L-shaped cross-section design, with its surface movably connected to the inner wall of the fixed shell 7. This shape allows the movable ring 6 to embed itself into the interior of the fixed shell 7, preventing it from easily moving out and effectively enhancing the limiting effect on the protective shell 5. A flexible pad 10 is fixedly connected to the inner cavity of the 7. The flexible pad 10 works in conjunction with the movable ring 6. The flexible pad 10 itself can reduce the gap between the movable ring 6 and the fixed shell 7, thereby further blocking dust and effectively improving the service life of the structure. Positioning mechanisms 9 are installed on both sides of the surface of the movable ring 6. The positioning mechanisms 9 work in conjunction with the mounting ring 4. Under this action, when the staff needs to inspect or maintain the connection between the piston rod 2 and the pressure cylinder body 1, the protective shell 5 can be limited to prevent it from moving easily and affecting the inspection effect of the pressure cylinder body 1 and the piston rod 2.

[0021] The positioning mechanism 9 includes a connecting seat 91 fixed to the surface of the movable ring 6. A blocking frame 92 is rotatably connected to the inner cavity of the connecting seat 91. Torsion springs 93 are fixedly connected to both sides of the inner cavity of the blocking frame 92. The other end of the torsion springs 93 is fixedly connected to the inner wall of the connecting seat 91. A blocking block 94 is fixedly connected to the surface of the mounting ring 4. One side of the blocking block 94 and one side of the blocking frame 92 are both designed with an inclined structure. The blocking block 94 and the blocking frame 92 work together. Under this action, the movable ring 6 can move the protective shell 5 by the action of the shape. The blocking frame 92 will rotate due to the pressure of the blocking block 94. Then, when the blocking frame 92 and the blocking block 94 intersect each other, the blocking frame 92 will be reset by the cooperation of the torsion springs 93. This achieves the effect of the blocking frame 92 and the blocking block 94 blocking each other and limiting the movable ring 6, which facilitates the internal maintenance of the structure.

[0022] It is worth noting that the technical features such as the pressurized cylinder body 1 and piston rod 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0023] Working principle: First, when maintenance is required at the connection between the pressure cylinder body 1 and the piston rod 2, the operator pushes the movable ring 6 to compress the compression spring 8. Then, the movable ring 6 continues to move. When the blocking frame 92 is squeezed by the blocking block 94 and rotates, one side of the blocking frame 92 contacts the other side of the blocking block 94. Then, with the cooperation of the torsion spring 93, the blocking frame 92 returns to its original position, mutually blocking and limiting the movable ring 6. This exposes the connection between the pressure cylinder body 1 and the piston rod 2, making it convenient for maintenance. After maintenance, the operator presses the blocking frame 92 to make it rotate and disengage from the blocking block 94. With the cooperation of the compression spring 8, the movable ring 6 can drive the protective shell 5 to move, so that the movable ring 6 is embedded in the interior of the fixed shell 7 and limits the protective shell 5. Under the action of the protective shell 5, dust can be effectively blocked, so that dust will not easily enter the interior of the pressure cylinder body 1 and affect the service life of the structure.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration damping structure for a cable-stayed bridge, comprising a pressure cylinder body (1) and a piston rod (2) movable therein, characterized in that, Also includes: A mounting base (3) is installed on one end of the pressure cylinder body (1) and piston rod (2). A mounting ring (4) is installed on one side of the surface of the pressure cylinder body (1). A protective shell (5) is fixedly connected to one side of the mounting ring (4). A movable ring (6) is fixed to one end of the protective shell (5). A fixed shell (7) is movably connected to the surface of the movable ring (6). A compression spring (8) is fixedly connected to one side of the mounting ring (4). A positioning mechanism (9) is installed on both sides of the surface of the movable ring (6). The positioning mechanism (9) includes a connecting seat (91) fixed to the surface of the movable ring (6). A blocking frame (92) is rotatably connected to the inner cavity of the connecting seat (91). Torsion springs (93) are fixedly connected to both sides of the inner cavity of the blocking frame (92). A blocking block (94) is fixedly connected to the surface of the mounting ring (4).

2. The vibration reduction structure for a cable-stayed bridge according to claim 1, characterized in that: The inner cavity of the fixed shell (7) is fixedly connected to a flexible pad (10), which is used in conjunction with the movable ring (6).

3. The vibration reduction structure for a cable-stayed bridge according to claim 1, characterized in that: The protective shell (5) is a flexible structure design, and the protective shell (5) is used in conjunction with the piston rod (2).

4. The vibration reduction structure for a cable-stayed bridge according to claim 1, characterized in that: The movable ring (6) has an L-shaped cross-sectional design, and the surface of the movable ring (6) is movably connected to the inner wall of the fixed shell (7).

5. A vibration reduction structure for a cable-stayed bridge according to claim 2, characterized in that: The blocking block (94) and the blocking frame (92) are both designed with an inclined structure on one side, and the blocking block (94) and the blocking frame (92) are used together.

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