Self-protection type bridge damping support

Abstract

The invention relates to a self-protection type bridge damping support which comprises a support assembly, the support assembly comprises a U-shaped base and a supporting body located at the upper end of the base, a transverse plate is arranged in the base, a vertical first guide column is arranged on the upper surface of the transverse plate, a sleeve is slidably connected to the first guide column, the upper surface of the sleeve is connected with the supporting body, and the lower surface of the sleeve is connected with the supporting body. A second guide column is inserted into the transverse plate on the side face of the first guide column, a limiting baffle is integrally arranged at the upper end of the second guide column and fixedly connected with the lower surface of the sleeve, and the second guide column between the limiting baffle and the transverse plate is sleeved with a compression spring. According to the whole technical scheme, the possibility of the risk of failure of the damping support is greatly reduced, the safety in the application process is improved, and the damping support is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge bearings, and in particular relates to a self-protecting bridge shock-absorbing bearing. Background Art

[0002] In the existing Chinese patent database, a patent named "A bridge shock-absorbing bearing" is disclosed, with application number CN202311088801.3 and application date 2023-11-17. A bridge shock-absorbing bearing belongs to the field of bridge engineering technology. The shock-absorbing bearing of the present application includes a base and a receiving plate; a buffer assembly is arranged between the base and the receiving plate; the buffer assembly includes a rolling assembly arranged on the top of the base, and a shaking platform arranged on the rolling assembly, and the shaking platform is fixedly connected to the receiving plate. In actual use, the shock-absorbing bearing is arranged between the bottom of the bridge deck and the pier. When the bridge encounters a natural disaster, the pier will shake violently. The base of the shock-absorbing bearing is connected to the pier, and the shaking platform is connected to the superstructure of the bridge. When the pier shakes, the shaking platform connected to the superstructure of the bridge can shake on the rolling assembly to prevent the shaking of the pier from being transmitted to the superstructure of the bridge, and can offset part of the shaking force. When the upper structure of the bridge shakes, it can drive the shaking platform to shake on the rolling assembly, thereby protecting the entire bridge structure.

[0003] In the prior art, the fatigue strength of bridge support bearings will decrease after long-term use, resulting in a decrease in the support shock-absorbing effect, which poses certain safety hazards. This article aims to propose a self-protecting bridge shock-absorbing bearing, which has a certain self-protection function after the fatigue of the support bearing is reduced to avoid safety accidents. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to quickly limit the bridge bearing in the vertical direction after the fatigue strength of the bridge bearing is reduced to avoid the occurrence of safety accidents. In order to improve its shortcomings, the present invention provides a self-protecting bridge shock-absorbing bearing.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions:

[0006] A self-protecting bridge shock-absorbing bearing includes a bearing assembly, which includes a U-shaped base and a supporting body located at the upper end of the base, a horizontal plate is arranged in the base, a vertical first guide column is arranged on the upper surface of the horizontal plate, a sleeve is slidably connected to the first guide column, and the upper surface of the sleeve is connected to the supporting body, a second guide column is inserted in the horizontal plate located on the side of the first guide column, a limiting baffle is integrally arranged on the upper end of the second guide column, the limiting baffle is fixedly connected to the lower surface of the sleeve, and a compression spring is sleeved on the second guide column located between the limiting baffle and the horizontal plate.

[0007] As a preferred embodiment, a limit block is integrally provided on the side of the sleeve, a slot is provided on the side of the limit block, a base is integrally provided on the inner side of the ear plate section of the base, a first electromagnet with power is provided at the bottom of the base, a locking pin is slidably connected inside the base, a second electromagnet is connected to the surface of the locking pin facing the first electromagnet, a locking head matching the slot is provided at the free end of the locking pin, and a photoelectric detector for detecting the vertical position of the second guide column is provided on the inner side of the base below the horizontal plate.

[0008] As a preferred solution, the lower free end of the second guide column is connected to a stop plate via a locking bolt, and a damping pad is provided on the inner bottom surface of the base facing the stop plate.

[0009] As a preferred solution, an inclined rod is integrally provided on the sleeve, and a support block is integrally provided on the upper free end of the inclined rod, and the support block is fixed to the lower surface of the support body via countersunk bolts.

[0010] As a preferred solution, the support body includes an upper support plate and a lower support plate, the lower support plate is arranged inside the base, and a connecting seat is arranged between the upper support plate and the lower support plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) The inner sleeve of the support assembly, the first guide column and the compression spring are arranged in coordination, so that the support assembly has a seismic resistance function;

[0013] 2) By using the matching setting of the limit block and the locking pin, the photoelectric detector can be used to judge the vertical position of the stop plate. After detection, the electromagnetic power is used to control the position of the locking pin and engage with the limit block, thereby inhibiting the continuous descent of the sleeve and playing the role of the first protection;

[0014] 3) When the electromagnetic protection fails, the brake is applied by the stop plate against the damping pad of the base, thus providing secondary protection.

[0015] The entire technical solution greatly reduces the possibility of the risk of failure of the shock-absorbing bearing, improves the safety during application, is suitable for industrial production, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] In the figure: 1 base, 2 supporting body, 201 upper supporting plate, 202 lower supporting plate, 203 connecting seat, 3 cross plate, 4 first guide column, 5 sleeve, 6 second guide column, 7 limit baffle, 8 compression spring, 9 limit block, 10 slot, 11 base, 12 first electromagnet, 13 locking pin, 14 second electromagnet, 15 locking head, 16 photoelectric detector, 17 stop plate, 18 damping pad, 19 diagonal rod, 20 supporting block. DETAILED DESCRIPTION

[0018] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, a self-protecting bridge shock-absorbing bearing includes a bearing assembly, the bearing assembly includes a U-shaped base 1 and a supporting body 2 located at the upper end of the base 1, a transverse plate 3 is arranged in the base 1, a vertical first guide column 4 is arranged on the upper surface of the transverse plate 3, a sleeve 5 is slidably connected to the first guide column 4, the upper surface of the sleeve 5 is connected to the supporting body 2, a second guide column 6 is inserted in the transverse plate 3 located on the side of the first guide column 4, a limiting baffle 7 is integrally arranged on the upper end of the second guide column 6, the limiting baffle 7 is fixedly connected to the lower surface of the sleeve 5, and a compression spring 8 is sleeved on the second guide column 6 located between the limiting baffle 7 and the transverse plate 3. A limit block 9 is integrally provided on the side of the sleeve 5, and a slot 10 is provided on the side of the limit block 9. A base 11 is integrally provided on the inner side of the ear plate section of the base 1. A first electromagnet 12 with power is provided at the bottom of the base 11. A locking pin 13 is slidably connected in the base 11. A second electromagnet 14 is connected to the surface of the locking pin 13 facing the first electromagnet 12. A locking head 15 matching the slot 10 is provided at the free end of the locking pin 13. A photoelectric detector 16 for detecting the vertical position of the second guide column 6 is provided on the inner side of the base 1 located below the cross plate 3. A stop plate 17 is connected to the lower free end of the second guide column 6 via a locking bolt, and a damping pad 18 is provided on the inner bottom surface of the base 1 opposite to the stop plate 17. An inclined rod 19 is integrally provided on the sleeve 5, and a support block 20 is integrally provided on the upper free end of the inclined rod 19. The support block 20 is fixed to the lower surface of the support body 2 via a countersunk bolt. The supporting body 2 includes an upper supporting plate 201 and a lower supporting plate 202 . The lower supporting plate 202 is disposed inside the base 1 . A connecting seat 203 is disposed between the upper supporting plate 201 and the lower supporting plate 202 .

[0020] When the bridge is under stress, the supporting body 2 tends to move downward due to the pressure. At this time, the compression spring 8 plays a role in buffering and shock absorbing the entire supporting body 2. When the fatigue strength of the bridge bearing is reduced, the supporting force of the compression spring 8 will be reduced. The supporting body 2 has a tendency to continue to decline, which is prone to safety accidents. At this time, a photoelectric detector 16 is arranged in the base 1. When it is detected that the horizontal position of the stop plate 17 drops to the detection plane of the photoelectric detector 16, it is immediately transmitted to the external control system, so that the first electromagnet 12 is energized, and the second electromagnet 14 at the end of the locking pin 13 repels each other, and the locking pin 13 is pushed out, so that the locking head 15 at the free end of the locking pin 13 is clamped in the card slot 10 of the limit block 9, thereby suppressing the continuous downward trend of the supporting body 2, and playing the role of primary protection. When the electromagnetic protection fails, the stop plate 17 is braked on the inner surface of the base 1, which plays the role of secondary protection. The entire technical solution greatly reduces the possibility of failure of the shock-absorbing bearing.

[0021] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A self-protecting bridge shock-absorbing bearing, characterized in that: The invention comprises a support assembly, wherein the support assembly comprises a U-shaped base (1) and a support body (2) located at the upper end of the base (1); a transverse plate (3) is arranged in the base (1); a vertical first guide column (4) is arranged on the upper surface of the transverse plate (3); a sleeve (5) is slidably connected to the first guide column (4); the upper surface of the sleeve (5) is connected to the support body (2); a second guide column (6) is inserted into the transverse plate (3) located on the side of the first guide column (4); a limit baffle (7) is integrally arranged on the upper end of the second guide column (6); the limit baffle (7) is fixedly connected to the lower surface of the sleeve (5); and a compression spring (8) is sleeved on the second guide column (6) located between the limit baffle (7) and the transverse plate (3).

2. The self-protecting bridge shock-absorbing bearing according to claim 1 is characterized in that: A limit block (9) is integrally arranged on the side of the sleeve (5), and a slot (10) is provided on the side of the limit block (9). A base (11) is integrally arranged on the inner side of the ear plate section of the base (1), and a first electromagnet (12) which is energized is arranged at the bottom of the base (11). A locking pin (13) is slidably connected inside the base (11), and a second electromagnet (14) is connected to the surface of the locking pin (13) facing the first electromagnet (12). A locking head (15) which matches the slot (10) is arranged at the free end of the locking pin (13), and a photoelectric detector (16) for detecting the vertical position of the second guide column (6) is arranged on the inner side of the base (1) below the horizontal plate (3).

3. The self-protecting bridge shock-absorbing bearing according to claim 2 is characterized in that: The lower free end of the second guide column (6) is connected to a stop plate (17) via a locking bolt, and a damping pad (18) is arranged on the inner bottom surface of the base (1) facing the stop plate (17).

4. The self-protecting bridge shock-absorbing bearing according to claim 3 is characterized in that: The sleeve (5) is integrally provided with an inclined rod (19), and the upper free end of the inclined rod (19) is integrally provided with a support block (20), and the support block (20) is fixedly connected to the lower surface of the support body (2) via countersunk bolts.

5. A self-protecting bridge shock-absorbing bearing according to any one of claims 1 to 4, characterized in that: The support body (2) comprises an upper support plate (201) and a lower support plate (202); the lower support plate (202) is arranged inside the base (1); and a connecting seat (203) is arranged between the upper support plate (201) and the lower support plate (202).

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