Multi-stage damping bridge support

Abstract

The utility model relates to the technical field of bridge supports, in particular to a multi-stage damping bridge support which can effectively enhance the damping effect and improve the practicability. Comprising an upper fixing table and a lower fixing table, sinking grooves are formed in the upper fixing table and the lower fixing table, stand columns are fixedly arranged in the centers of the sinking grooves of the upper fixing table and the lower fixing table, main holes are formed in the middles of the peripheries of the upper fixing table and the lower fixing table and the peripheries of the two sets of stand columns, and the main holes in the stand columns and the main holes in the upper fixing table are horizontally aligned. The periphery of the upper fixing table and the periphery of the lower fixing table are each provided with two sets of auxiliary holes, the outer sides of the two sets of connecting plates are fixedly connected with the bottom end of the upper fixing table and the top end of the lower fixing table respectively, four sets of damping sleeves are symmetrically and fixedly connected to the top end of the lower fixing table, and each set of damping sleeves and damping columns are sleeved with outer-layer damping springs. The upper and lower ends of the four groups of outer damping springs are fixedly connected with the bottom end of the upper fixing table and the top end of the lower fixing table respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge supports, in particular to a multi-stage shock-absorbing bridge support. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, and seas to enable vehicles and pedestrians to pass smoothly. To adapt to the modern high-speed development of the transportation industry, bridges are also extended to refer to buildings that are built across mountain streams, poor geology, or to meet other transportation needs to make travel more convenient.

[0003] A bridge is generally composed of an upper structure, a lower structure, supports and ancillary structures. The upper structure is the main structure for crossing obstacles. The lower structure includes abutments, piers and foundations. The supports are force transmission devices installed at the supporting locations between the span structure and the piers or abutments. In order to resist external vibrations, bridges usually need to be equipped with shock-absorbing supports.

[0004] Shock-absorbing bridge bearings are important structural components that connect the bridge superstructure and the bridge substructure. Their function is to reliably transfer the load and deformation borne by the bridge superstructure to the bridge substructure to ensure the stability of the bridge. However, the shock-absorbing structure of the existing bridge shock-absorbing device is relatively simple. In actual use, the shock-absorbing effect is not good and the practicality is insufficient. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-stage shock-absorbing bridge bearing which can effectively enhance the shock-absorbing effect and improve the practicality.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage shock-absorbing bridge support, including an upper fixed platform, a lower fixed platform and a multi-stage shock-absorbing mechanism, wherein the upper fixed platform and the lower fixed platform are both provided with a sink groove, and columns are fixedly provided in the center of the sink grooves of the upper fixed platform and the lower fixed platform, and main holes are provided in the middle of the upper fixed platform and the lower fixed platform and around the two groups of columns, and the main holes of the columns and the upper fixed platform are horizontally aligned, and two groups of auxiliary holes are provided around the upper fixed platform and the lower fixed platform, and the two groups of auxiliary holes on each surface of the upper fixed platform and the lower fixed platform are distributed on both sides of the main hole, and the multi-stage shock-absorbing mechanism includes a bridge rubber shock-absorbing column, and the upper and lower ends of the bridge rubber shock-absorbing column are fixed A shock-absorbing plate is connected, and multiple groups of inner shock-absorbing springs are fixedly connected in an annular equidistant manner between the two groups of shock-absorbing plates. The outer sides of the two groups of shock-absorbing plates are fixedly connected with connecting plates, and multiple groups of middle shock-absorbing springs are fixedly connected in an annular equidistant manner between the two groups of connecting plates. The outer sides of the two groups of connecting plates are respectively fixedly connected to the bottom end of the upper fixed platform and the top end of the lower fixed platform, and four groups of damping sleeves are symmetrically fixedly connected to the top end of the lower fixed platform. Damping columns are slidably provided on the four groups of damping sleeves, and the top ends of the four groups of damping columns are fixedly connected to the bottom end of the upper fixed platform, and each group of damping sleeves and damping columns are sleeved with an outer shock-absorbing spring, and the upper and lower ends of the four groups of outer shock-absorbing springs are respectively fixedly connected to the bottom end of the upper fixed platform and the top end of the lower fixed platform.

[0008] Preferably, a buffer mechanism is provided between the four groups of damping columns and damping sleeves, and the buffer mechanism includes a limit plate and a rubber buffer column. The damping sleeve is provided with a guide groove, and the limit plate is fixedly connected to the bottom end of the damping column by cooperating with the guide groove, the top end of the rubber buffer column is fixedly connected to the bottom end of the limit plate, and the bottom end of the rubber buffer column is fixedly connected to the bottom of the guide groove.

[0009] Preferably, stress relief chamfers are provided at the connections between the two groups of connecting plates and the upper fixing platform and the lower fixing platform.

[0010] Preferably, stress-relieving chamfers are provided at the connection points between the upper and lower ends of the bridge rubber shock-absorbing column and the two groups of shock-absorbing plates.

[0011] Compared with the prior art, the utility model has the following beneficial effects: when in use, the upper fixing platform is connected to the bridge, the lower fixing platform is connected to the bridge pier, and positioning grooves are provided on the bottom of the bridge and the bridge pier. When connecting, the column is inserted into the positioning groove, and the riveting rod is passed through the main hole around the upper fixing platform and nailed into the bridge and the column, and then the riveting rod is nailed into the bridge through the auxiliary holes around the upper fixing platform, so that the upper fixing platform is firmly connected to the bridge. The connection between the lower fixing platform and the bridge pier is the same, so it will not be repeated. When the upper fixing platform is vibrated to move downward, the upper fixing platform The fixed platform drives the damping column to slide downward along the damping sleeve to compress the outer shock-absorbing spring, and the compression of the outer shock-absorbing spring absorbs energy to perform preliminary shock absorption. When the upper fixed platform moves downward, it drives the connecting plate to move, so that the middle shock-absorbing spring is compressed, and the compression of the middle shock-absorbing spring absorbs energy to perform secondary shock absorption. After that, the connecting plate drives the shock-absorbing plate to move downward, so that the rubber shock-absorbing column and the inner shock-absorbing spring of the bridge are compressed, so as to perform the third shock absorption, thereby realizing multi-stage shock absorption of the bridge, which can effectively enhance the shock absorption effect and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 2 It is a front structural schematic diagram of the utility model;

[0014] Figure 3 It is a partial axonometric structural schematic diagram of the utility model;

[0015] Figure 4 It is a schematic diagram of the axonometric structure of the rubber shock-absorbing column and the shock-absorbing plate of the bridge in the utility model;

[0016] Figure 5 It is a schematic diagram of the axonometric cross-sectional structure of the damping column and the damping sleeve in the utility model;

[0017] Figure 6 It is a front view structural diagram of the connection between the rubber shock absorbing column and the shock absorbing plate of the bridge in the utility model;

[0018] Markings in the attached drawings: 1. upper fixed platform; 2. lower fixed platform; 3. column; 4. main hole; 5. secondary hole; 6. bridge rubber shock-absorbing column; 7. shock-absorbing plate; 8. inner shock-absorbing spring; 9. connecting plate; 10. middle shock-absorbing spring; 11. damping sleeve; 12. damping column; 13. outer shock-absorbing spring; 14. limit plate; 15. rubber buffer column; 16. stress relief chamfer; 17. stress relief chamfer. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 6 The utility model is a multi-stage shock-absorbing bridge support, including an upper fixed platform 1 and a lower fixed platform 2, wherein the upper fixed platform 1 and the lower fixed platform 2 are both provided with a sinking groove, and a column 3 is fixedly provided in the center of the sinking groove of the upper fixed platform 1 and the lower fixed platform 2, and a main hole 4 is provided in the middle of the upper fixed platform 1 and the lower fixed platform 2 and around the two groups of columns 3, and the columns 3 and the main holes 4 on the upper fixed platform 1 are horizontally aligned, and two groups of auxiliary holes 5 are provided around the upper fixed platform 1 and the lower fixed platform 2, and the two groups of auxiliary holes 5 on each surface of the upper fixed platform 1 and the lower fixed platform 2 are distributed on both sides of the main hole 4, and the upper and lower ends of the bridge rubber shock-absorbing column 6 are fixedly connected The damping plate 7 has multiple groups of inner damping springs 8 fixedly connected in an annular manner with equal spacing between the two groups of damping plates 7. The outer sides of the two groups of damping plates 7 are fixedly connected with connecting plates 9. Multiple groups of middle damping springs 10 are fixedly connected in an annular manner with equal spacing between the two groups of connecting plates 9. The outer sides of the two groups of connecting plates 9 are respectively fixedly connected with the bottom end of the upper fixed platform 1 and the top end of the lower fixed platform 2. The top end of the lower fixed platform 2 is symmetrically fixedly connected with four groups of damping sleeves 11. The four groups of damping sleeves 11 are slidably provided with damping columns 12. The top ends of the four groups of damping columns 12 are fixedly connected with the bottom end of the upper fixed platform 1. Each group of damping sleeves 11 and the damping column 12 are sleeved with an outer damping spring. Spring 13, the upper and lower ends of the four groups of outer shock-absorbing springs 13 are fixedly connected to the bottom end of the upper fixed platform 1 and the top end of the lower fixed platform 2 respectively; when in use, the upper fixed platform 1 is connected to the bridge, and the lower fixed platform 2 is connected to the bridge pier, and positioning grooves are provided on the bottom of the bridge and the bridge pier. When connecting, the column 3 is inserted into the positioning groove, and the rivet rod is passed through the main hole 4 from the surrounding of the upper fixed platform 1 and nailed into the bridge and the column 3, and then the rivet rod is nailed into the bridge through the auxiliary holes 5 around the upper fixed platform 1, so that the upper fixed platform 1 is firmly connected to the bridge, and the connection between the lower fixed platform 2 and the bridge pier is the same, so it is not repeated. When the upper fixed platform 1 is subjected to vibration, When moving downward, the upper fixed platform 1 drives the damping column 12 to slide downward along the damping sleeve 11 to compress the outer shock-absorbing spring 13, and performs preliminary shock absorption through the compression of the outer shock-absorbing spring 13. When the upper fixed platform 1 moves downward, it drives the connecting plate 9 to move, so that the middle shock-absorbing spring 10 is compressed, and performs secondary shock absorption through the compression of the middle shock-absorbing spring 10. After that, the connecting plate 9 drives the shock-absorbing plate 7 to move downward, so that the bridge rubber shock-absorbing column 6 and the inner shock-absorbing spring 8 are compressed, so as to perform the third shock absorption, thereby realizing multi-stage shock absorption of the bridge, which can effectively enhance the shock absorption effect and improve practicality.

[0022] A buffer mechanism is provided between the four groups of damping columns 12 and the damping sleeve 11, and the buffer mechanism includes a limit plate 14 and a rubber buffer column 15. A guide groove is provided on the damping sleeve 11, and the limit plate 14 is fixedly connected to the bottom end of the damping column 12 by cooperating with the guide groove. The top end of the rubber buffer column 15 is fixedly connected to the bottom end of the limit plate 14, and the bottom end of the rubber buffer column 15 is fixedly connected to the bottom of the guide groove. By setting the buffer mechanism, when the damping column 12 slides downward due to vibration, the damping column 12 drives the limit plate 14 to slide downward, so that the limit plate 14 squeezes the rubber buffer column 15, and the rubber buffer column 15 generates compression deformation to absorb energy, thereby preventing the bottom of the damping column 12 from colliding with the damping sleeve 11, thereby further playing a shock-absorbing role.

[0023] The connection points between the two groups of connecting plates 9 and the upper fixing platform 1 and the lower fixing platform 2 are both provided with stress relief chamfers 16 ; by providing the stress relief chamfers 16 , the connection between the connecting plates 9 and the upper fixing platform 1 and the lower fixing platform 2 can be made smoother.

[0024] The connection points between the upper and lower ends of the bridge rubber shock-absorbing column 6 and the two groups of shock-absorbing plates 7 are both provided with stress-relieving chamfers 17; by providing the stress-relieving chamfers 17, the connection between the bridge rubber shock-absorbing column 6 and the shock-absorbing plates 7 can be made smoother, avoiding the problem of stress concentration.

[0025] The utility model is a multi-stage shock-absorbing bridge support. Its working principle is that when in use, the upper fixed platform 1 is connected to the bridge, the lower fixed platform 2 is connected to the bridge pier, and positioning grooves are provided on the bottom of the bridge and the bridge pier. When connected, the column 3 is inserted into the positioning groove, and the riveting rod is passed through the main hole 4 from the surrounding of the upper fixed platform 1 and nailed into the bridge and the column 3, and then the riveting rod is nailed into the bridge through the auxiliary holes 5 around the upper fixed platform 1, so that the upper fixed platform 1 is firmly connected to the bridge. The connection between the lower fixed platform 2 and the bridge pier is the same, so it is not repeated. When the upper fixed platform 1 is subjected to vibration, the lower fixed platform 2 is connected to the bridge pier. When moving downward, the upper fixed platform 1 drives the damping column 12 to slide downward along the damping sleeve 11 to compress the outer shock-absorbing spring 13, and performs preliminary shock absorption by absorbing energy through the compression of the outer shock-absorbing spring 13. When the upper fixed platform 1 moves downward, it drives the connecting plate 9 to move, so that the middle shock-absorbing spring 10 is compressed, and performs secondary shock absorption by absorbing energy through the compression of the middle shock-absorbing spring 10. After that, the connecting plate 9 drives the shock-absorbing plate 7 to move downward, so that the bridge rubber shock-absorbing column 6 and the inner shock-absorbing spring 8 are compressed, so as to perform the third shock absorption, thereby realizing multi-stage shock absorption of the bridge.

[0026] The utility model provides a multi-stage shock-absorbing bridge support, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as it can achieve its beneficial effects; technicians in this industry only need to install and operate it according to the accompanying instruction manual.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A bridge support with multi-stage shock absorption, comprising an upper fixing platform (1) and a lower fixing platform (2), characterized in that: It also includes a multi-stage shock absorption mechanism; An upper fixed platform (1) and a lower fixed platform (2), wherein the upper fixed platform (1) and the lower fixed platform (2) are both provided with a sink, and a column (3) is fixedly provided in the center of the sink of the upper fixed platform (1) and the lower fixed platform (2), and main holes (4) are provided in the middle of the upper fixed platform (1) and the lower fixed platform (2) and around the two groups of columns (3), and the columns (3) and the main holes (4) on the upper fixed platform (1) are horizontally aligned, and two groups of auxiliary holes (5) are provided around the upper fixed platform (1) and the lower fixed platform (2), and the two groups of auxiliary holes (5) on each surface of the upper fixed platform (1) and the lower fixed platform (2) are distributed on both sides of the main hole (4); A multi-stage shock absorbing mechanism, the multi-stage shock absorbing mechanism comprising a bridge rubber shock absorbing column (6), the upper and lower ends of the bridge rubber shock absorbing column (6) are fixedly connected with shock absorbing plates (7), multiple groups of inner shock absorbing springs (8) are fixedly connected in an annular manner with equal spacing between two groups of shock absorbing plates (7), the outer sides of the two groups of shock absorbing plates (7) are fixedly connected with connecting plates (9), multiple groups of middle shock absorbing springs (10) are fixedly connected in an annular manner with equal spacing between the two groups of connecting plates (9), and the outer sides of the two groups of connecting plates (9) are respectively connected to the bottom end of the upper fixed platform (1) and the lower fixed platform (1). The top of the fixed platform (2) is fixedly connected, and the top of the lower fixed platform (2) is symmetrically fixedly connected with four groups of damping sleeves (11), and damping columns (12) are slidably arranged on the four groups of damping sleeves (11). The tops of the four groups of damping columns (12) are fixedly connected to the bottom of the upper fixed platform (1), and each group of damping sleeves (11) and damping columns (12) are sleeved with an outer layer of shock absorbing springs (13), and the upper and lower ends of the four groups of outer layer of shock absorbing springs (13) are respectively fixedly connected to the bottom of the upper fixed platform (1) and the top of the lower fixed platform (2).

2. A multi-stage shock-absorbing bridge support as claimed in claim 1, characterized in that: A buffer mechanism is provided between the four groups of damping columns (12) and the damping sleeve (11), the buffer mechanism comprising a limit plate (14) and a rubber buffer column (15); a guide groove is provided on the damping sleeve (11); the limit plate (14) is fixedly connected to the bottom end of the damping column (12) by cooperating with the guide groove; the top end of the rubber buffer column (15) is fixedly connected to the bottom end of the limit plate (14); and the bottom end of the rubber buffer column (15) is fixedly connected to the bottom of the guide groove.

3. A multi-stage shock-absorbing bridge support as claimed in claim 2, characterized in that: The connection points between the two groups of connecting plates (9) and the upper fixing platform (1) and the lower fixing platform (2) are both provided with stress relief chamfers (16).

4. A multi-stage shock-absorbing bridge support as claimed in claim 3, characterized in that: The connection points between the upper and lower ends of the bridge rubber shock-absorbing column (6) and the two groups of shock-absorbing plates (7) are both provided with stress-relieving chamfers (17).

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