Bridge support damping device

Abstract

The utility model relates to the technical field of bridge supports, in particular to a bridge support damping device. Comprising a bridge pier, a support, a mounting platform, a damping mechanism, two movable supports and two bases. The mounting platform is arranged at the upper end of the pier; a plurality of damping telescopic pieces are mounted between the support and the mounting platform; the damping mechanism is mounted between the support and the mounting platform, the damping mechanism comprises a rotating seat, two limiting plates and a plurality of buffering assemblies, and a driving assembly a used for driving the two limiting plates to be close to or away from each other is mounted on the mounting platform; the two movable supports are slidably mounted on the mounting platform, a driving assembly b used for driving the two movable supports to be close to or away from each other is mounted on the mounting platform, and the two bases are arranged at the bottom ends of the supports. According to the spring mounting and dismounting device, the mounted spring can be conveniently dismounted and mounted, and the practicability is high.

Description

Technical Field

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

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It is located between the bridge and the pad stone. It can reliably transfer the load and deformation borne by the superstructure of the bridge to the substructure of the bridge. It is an important force transmission device of the bridge.

[0003] A Chinese patent with announcement number CN219951678U discloses a bridge support device with a shock-absorbing structure, including a bridge pier, a shock-absorbing member is arranged on the surface of the bridge pier, a support is arranged on the surface of the shock-absorbing member, a fixed column is fixedly installed on the surface of the bridge pier, the fixed column is penetrated by a ladder and is slidably connected to the ladder, and a control component is arranged in the fixed column.

[0004] The above-mentioned patent still has the following technical defects: the shock absorber is not easy to replace, and the spring contained in the shock absorber will produce metal fatigue or corrosion when it is under pressure for a long time. Utility Model Content

[0005] The utility model aims to provide a bridge support shock absorbing device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a bridge bearing shock absorbing device, comprising:

[0007] A pier having a mounting platform at the upper end;

[0008] A plurality of damping telescopic members are installed between the support and the mounting platform;

[0009] A shock absorbing mechanism, the shock absorbing mechanism is installed between the support and the mounting platform, the shock absorbing mechanism includes a rotating seat, two limit plates and a plurality of buffer components, the rotating seat is installed at the bottom end of the support, the two limit plates are slidably arranged at the two ends of the mounting platform respectively, a driving component a for driving the two limit plates to move closer to or away from each other is installed on the mounting platform, the buffer component includes a rotating rod, a sliding seat, a fixed seat, a spring and a guide rod, the fixed seat is installed on the mounting platform, the guide rod is connected to the fixed seat, the sliding seat is slidably arranged on the guide rod, the spring sleeve is installed on the guide rod, and the two ends of the rotating rod are rotatably connected to the rotating seat and the sliding seat respectively; a plurality of through holes are opened on the limit plate, and the plurality of through holes are respectively provided for the plurality of guide rods on the corresponding sides to pass through;

[0010] Two movable supports and two bases, both movable supports are slidably mounted on a mounting platform, a driving component b for driving the two movable supports to move closer to or away from each other is mounted on the mounting platform, and both bases are arranged at the bottom ends of the supports.

[0011] Preferably, a ladder a is rotatably installed on the top of the side of the pier, and a ladder b is slidably installed on the ladder a. Both sides of the ladder a are threaded with multiple butterfly bolts, and both sides of the ladder b are provided with multiple positioning grooves for the ends of the butterfly bolts to be screwed into.

[0012] Preferably, the damping telescopic member includes a sleeve, a piston rod and a damping rubber sleeve, the sleeve and the piston rod are respectively connected to the mounting platform and the support, the bottom end of the piston rod is slidably arranged on the inner side of the sleeve, and the damping rubber sleeve is installed on the inner wall of the sleeve.

[0013] Preferably, a limited position seat is provided at the inner bottom of the sleeve.

[0014] Preferably, the driving component a includes a servo motor a, a reducer a, a chain, two bidirectional screw rods a and two sprockets. Both ends of the mounting platform are connected to side brackets. The two bidirectional screw rods a are rotatably installed between the two side brackets. The two limit plates are threadedly connected to the two bidirectional screw rods a. The two sprockets are respectively installed at the ends of the two bidirectional screw rods a. The two sprockets are connected by a chain transmission. The servo motor a and the reducer a are both installed on the side brackets. The output shaft of the servo motor a is connected to the input shaft of the reducer a, and the output shaft of the reducer a is connected to the bidirectional screw rod a on one side.

[0015] Preferably, the driving component b includes a servo motor b, a reducer b and a bidirectional screw rod b. The bidirectional screw rod b is rotatably installed between two side brackets. The bidirectional screw rod b passes through two limit plates. The two movable supports are threadedly connected to the bidirectional screw rod b. The servo motor b and the reducer b are both installed on the side brackets. The output shaft of the servo motor b is connected to the input shaft of the reducer b, and the output shaft of the reducer b is connected to the bidirectional screw rod b.

[0016] Preferably, the spring is made of a memory alloy SMA material; and the support is made of a lead-zinc material.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects: when replacing the spring, first drive the two movable supports apart from each other so that the movable supports on both sides form a stable support for the bases on both sides respectively, then drive the two limit plates apart from each other through the set driving component a, then directly take the spring out of the guide rod, then install the new spring, and finally drive the two limit plates and the two movable supports to reset; in summary, the utility model can facilitate the disassembly and assembly of the installed springs, and its practicability is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the support, the mounting platform and the shock absorbing mechanism in the utility model.

[0020] Figure 3 It is a cross-sectional structural diagram of the damping telescopic member in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the bottom end of the support in the utility model.

[0022] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at A.

[0023] Figure numerals: 1. pier; 2. support; 3. rotating seat; 41. sleeve; 42. piston rod; 5. rotating rod; 6. sliding seat; 7. fixed seat; 8. spring; 9. limit plate; 10. guide rod; 111. bidirectional screw a; 112. bidirectional screw b; 121. sprocket; 122. chain; 131. servo motor a; 132. servo motor b; 141. reducer a; 142. reducer b; 15. movable support; 16. base; 17. ladder a; 18. ladder b; 181. positioning groove; 19. butterfly bolt; 20. mounting platform; 21. damping rubber sleeve; 22. limit seat; 23. side bracket. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 5 As shown, a bridge bearing shock-absorbing device proposed in this embodiment includes a pier 1, a bearing 2, a mounting platform 20, a shock-absorbing mechanism, two movable bearings 15 and two bases 16.

[0026] The mounting platform 20 is arranged at the upper end of the pier 1; the support 2 is made of lead-zinc material, and a plurality of damping telescopic parts are installed between the support 2 and the mounting platform 20. The damping telescopic parts include a sleeve 41, a piston rod 42 and a damping rubber sleeve 21. The sleeve 41 and the piston rod 42 are respectively connected to the mounting platform 20 and the support 2. The bottom end of the piston rod 42 is slidably arranged on the inner side of the sleeve 41, and the damping rubber sleeve 21 is installed on the inner wall of the sleeve 41; a limit seat 22 is arranged at the inner bottom of the sleeve 41, and the limit seat 22 is used to limit the moving stroke of the support 2 to prevent the spring 8 from undergoing a large deformation.

[0027] The shock absorbing mechanism is installed between the support 2 and the mounting platform 20. The shock absorbing mechanism includes a rotating seat 3, two limit plates 9 and a plurality of buffer components. The rotating seat 3 is installed at the bottom end of the support 2. The two limit plates 9 are respectively slidably arranged at the two ends of the mounting platform 20. A driving component a for driving the two limit plates 9 to move closer to or away from each other is installed on the mounting platform 20. The driving component a includes a servo motor a131, a reducer a141, a chain 122, two bidirectional screw rods a111 and two sprocket wheels 121. Both ends of the mounting platform 20 are connected to side brackets 23. The two bidirectional screw rods a111 are rotatably installed between the two side brackets 23. The two limit plates 9 are threadedly connected to the two bidirectional screw rods a111. The two sprocket wheels 121 are respectively installed at the ends of the two bidirectional screw rods a111. The sprockets 121 are connected through a chain 122 for transmission. The servo motor a131 and the reducer a141 are both installed on the side bracket 23. The output shaft of the servo motor a131 is connected to the input shaft of the reducer a141. The output shaft of the reducer a141 is connected to the bidirectional screw rod a111 on one side. The buffer assembly includes a rotating rod 5, a sliding seat 6, a fixed seat 7, a spring 8 and a guide rod 10. The fixed seat 7 is installed on the mounting platform 20. The guide rod 10 is connected to the fixed seat 7. The sliding seat 6 is slidably set on the guide rod 10. The spring 8 is sleeved and installed on the guide rod 10. The spring 8 is made of memory alloy SMA material. The two ends of the rotating rod 5 are rotatably connected to the rotating seat 3 and the sliding seat 6 respectively; a plurality of through holes are opened on the limit plate 9, and the plurality of through holes are respectively provided for the plurality of guide rods 10 on the corresponding sides to pass through.

[0028] The two movable supports 15 are both slidably installed on the mounting platform 20, and a driving component b for driving the two movable supports 15 to move closer to or away from each other is installed on the mounting platform 20. The driving component b includes a servo motor b132, a reducer b142 and a bidirectional screw rod b112. The bidirectional screw rod b112 is rotatably installed between the two side supports 23. The bidirectional screw rod b112 passes through the two limit plates 9. The two movable supports 15 are both threadedly connected to the bidirectional screw rod b112. The servo motor b132 and the reducer b142 are both installed on the side supports 23. The output shaft of the servo motor b132 is connected to the input shaft of the reducer b142. The output shaft of the reducer b142 is connected to the bidirectional screw rod b112. The two bases 16 are both arranged at the bottom end of the support 2.

[0029] In the present technical solution, the multiple springs 8 set up can play a role in buffering and shock absorption for the support 2. During the movement, the support 2 drives the piston rod 42 to move on the inner side of the sleeve 41. The setting of the piston rod 42 can increase the friction force on the piston rod 42, so that the support 2 can quickly return to a static state; the set spring 8 may cause metal fatigue or corrosion after long-term use. At this time, the spring 8 needs to be replaced. When replacing the spring 8, first, the two movable supports 15 are driven away from each other through the set driving component b, so that the two movable supports 15 are respectively moved to the position directly below the two bases 16, and the movable supports 15 on both sides form a stable support for the bases 16 on both sides, and then the two limit plates 9 are driven away from each other through the set driving component a, and then the spring 8 can be directly removed from the guide rod 10, and then the new spring 8 is installed, and finally the two limit plates 9 and the two movable supports 15 are driven to reset.

[0030] Embodiment 2

[0031] like Figure 1 As shown, a bridge bearing shock absorbing device proposed in this embodiment, compared with the first embodiment, in this embodiment, a ladder a17 is rotatably installed on the top of the side of the pier 1, and a ladder b18 is slidably installed on the ladder a17, and multiple butterfly bolts 19 are threadedly connected on both sides of the ladder a17, and multiple positioning grooves 181 are provided on both sides of the ladder b18 for the ends of the butterfly bolts 19 to be screwed into; when the operator needs to climb up to replace the spring 8, the multiple butterfly bolts 19 are first loosened, and then the ladder a17 is rotated to an inclined state, and the ladder b18 is pulled downward to make its bottom end contact with the ground, and then the multiple butterfly bolts 19 are tightened. The ladder in the inclined state makes it easier for the operator to climb, and the ladder can be stored after use to reduce the occupied space.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A bridge bearing shock absorbing device, characterized in that: include: A bridge pier (1) having a mounting platform (20) at the upper end; A support (2), wherein a plurality of damping telescopic parts are installed between the support (2) and the mounting platform (20); A shock absorbing mechanism, the shock absorbing mechanism is installed between the support (2) and the mounting platform (20), the shock absorbing mechanism comprises a rotating seat (3), two limiting plates (9) and a plurality of buffer components, the rotating seat (3) is installed at the bottom end of the support (2), the two limiting plates (9) are respectively slidably arranged at the two ends of the mounting platform (20), a driving component a for driving the two limiting plates (9) to move closer to or away from each other is installed on the mounting platform (20), the buffer component comprises a rotating rod (5), a sliding seat (6), a fixed seat (7), a spring (8) and a guide rod (10), the fixed seat (7) is installed on the mounting platform (20), the guide rod (10) is connected to the fixed seat (7), the sliding seat (6) is slidably arranged on the guide rod (10), the spring (8) is sleeved and installed on the guide rod (10), and the two ends of the rotating rod (5) are respectively rotatably connected to the rotating seat (3) and the sliding seat (6); a plurality of through holes are opened on the limiting plate (9), and the plurality of through holes are respectively provided for the plurality of guide rods (10) on the corresponding sides to pass through; Two movable supports (15) and two bases (16), the two movable supports (15) are slidably mounted on a mounting platform (20), a driving component b for driving the two movable supports (15) to move closer to or away from each other is mounted on the mounting platform (20), and the two bases (16) are arranged at the bottom end of the support (2).

2. A bridge bearing shock absorbing device according to claim 1, characterized in that: A ladder a (17) is rotatably mounted on the top of the side of the bridge pier (1), a ladder b (18) is slidably mounted on the ladder a (17), multiple butterfly bolts (19) are threadedly connected on both sides of the ladder a (17), and multiple positioning grooves (181) are provided on both sides of the ladder b (18) for the ends of the butterfly bolts (19) to be screwed into.

3. A bridge bearing shock absorbing device according to claim 1, characterized in that: The damping telescopic component comprises a sleeve (41), a piston rod (42) and a damping rubber sleeve (21); the sleeve (41) and the piston rod (42) are respectively connected to the mounting platform (20) and the support (2); the bottom end of the piston rod (42) is slidably arranged on the inner side of the sleeve (41); and the damping rubber sleeve (21) is installed on the inner wall of the sleeve (41).

4. A bridge bearing shock absorbing device according to claim 3, characterized in that: A limiting seat (22) is provided at the inner bottom of the sleeve (41).

5. A bridge bearing shock absorbing device according to claim 1, characterized in that: The driving assembly a comprises a servo motor a (131), a reducer a (141), a chain (122), two bidirectional screw rods a (111) and two sprocket wheels (121). Both ends of the mounting platform (20) are connected to side brackets (23). The two bidirectional screw rods a (111) are rotatably mounted between the two side brackets (23). The two limit plates (9) are threadedly connected to the two bidirectional screw rods a (111). The two sprocket wheels (121) are respectively mounted on the ends of the two bidirectional screw rods a (111). The two sprocket wheels (121) are connected to each other by a transmission through the chain (122). The servo motor a (131) and the reducer a (141) are both mounted on the side brackets (23). The output shaft of the servo motor a (131) is connected to the input shaft of the reducer a (141). The output shaft of the reducer a (141) is connected to the bidirectional screw rod a (111) on one side.

6. A bridge bearing shock absorbing device according to claim 5, characterized in that: The driving assembly b comprises a servo motor b (132), a reducer b (142) and a bidirectional screw rod b (112). The bidirectional screw rod b (112) is rotatably mounted between two side brackets (23). The bidirectional screw rod b (112) passes through two limit plates (9). The two movable supports (15) are both threadedly connected to the bidirectional screw rod b (112). The servo motor b (132) and the reducer b (142) are both mounted on the side brackets (23). The output shaft of the servo motor b (132) is connected to the input shaft of the reducer b (142). The output shaft of the reducer b (142) is connected to the bidirectional screw rod b (112).

7. A bridge bearing shock absorbing device according to claim 1, characterized in that: The spring (8) is made of a memory alloy SMA material; and the support (2) is made of a lead-zinc material.

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