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CN-121992715-A - Dustproof anti-blocking device for bridge expansion joint

CN121992715ACN 121992715 ACN121992715 ACN 121992715ACN-121992715-A

Abstract

The invention relates to the technical field of bridge expansion joints, in particular to a dust-proof and anti-blocking device for the bridge expansion joints, which comprises two section steels, wherein supporting sheets are fixedly connected between the section steels together, a plurality of steel bar connecting pieces are fixedly connected to the side walls of the section steels, a blocking mechanism is arranged between the section steels together, the blocking mechanism comprises two supporting rods and two main magnets, the top ends of the supporting rods are fixedly connected with connecting rods, the connecting rods are slidably connected with blocking pads together, the bottom ends of the blocking pads are fixedly connected with connecting sheets, the bottom ends of the connecting sheets are fixedly connected with mounting plates, symmetrically arranged sliding grooves are formed in the mounting plates, and a plurality of springs are fixedly connected in the sliding grooves.

Inventors

  • HE FEI
  • Yang Tingcheng
  • DU XUELIANG
  • LU DEPENG
  • SUN SHIYUAN

Assignees

  • 甘肃省武威公路事业发展中心古浪公路段

Dates

Publication Date
20260508
Application Date
20260310

Claims (6)

  1. 1. Dustproof anti-blocking device of bridge expansion joint, its characterized in that: comprises two section steel (1), a supporting sheet (2) is fixedly connected between the section steel (1), a plurality of steel bar connecting pieces (3) are fixedly connected to the side walls of the section steel (1); a blocking mechanism (4) is arranged between the section steel (1) together, the blocking mechanism (4) comprises two supporting rods (41) and two main magnets (42), the top ends of the supporting rods (41) are fixedly connected with connecting rods (43), the connecting rods (43) are connected with a plugging pad (44) in a sliding way, the bottom end of the plugging pad (44) is fixedly connected with a connecting sheet (45), the bottom end of the connecting sheet (45) is fixedly connected with a mounting plate (46), symmetrically arranged sliding grooves (47) are formed in the mounting plate (46), a plurality of springs (48) are fixedly connected in the sliding groove (47), the sliding grooves (47) are internally and slidably connected with auxiliary magnets (49), a plurality of vertical rods (50) are fixedly connected with the bottom end of the mounting plate (46), the bottom ends of the vertical rods (50) are fixedly connected with positioning blocks (51), a sponge cushion (52) is sleeved on the vertical rod (50) in a sliding way, the vertical rod (50) is sleeved with a deformation pad (53) in a sliding way.
  2. 2. The device for preventing dust and blocking of the bridge expansion joint according to claim 1, wherein the supporting sheet (2) is made of rubber, the specific shape of the supporting sheet (2) is V-shaped, and the reinforcing steel bar connecting pieces (3) are all C-shaped.
  3. 3. The device for preventing dust and blocking of a bridge expansion joint according to claim 1, wherein the supporting rods (41) are fixedly connected to the other side wall of the section steel (1) respectively, the main magnets (42) are fixedly connected to the bottom ends of the section steel (1) respectively, and one ends of the main magnets (42) are respectively provided with a south pole.
  4. 4. The bridge expansion joint dustproof and anti-blocking device according to claim 1, wherein the concrete shape of the connecting rod (43) is T-shaped, the blocking pad (44) is made of rubber, the top level of the blocking pad (44) is lower than the top level of two section steels (1), two sides of the blocking pad (44) are respectively abutted against the corresponding section steels (1), and the connecting sheet (45) is made of rubber.
  5. 5. The bridge expansion joint dustproof and anti-blocking device according to claim 1, wherein one end of each spring (48) is fixedly connected with a corresponding auxiliary magnet (49), one corner of each auxiliary magnet (49) corresponding to the position of the main magnet (42) is obliquely arranged, each auxiliary magnet (49) corresponding to the position of the south pole of the main magnet (42) is arranged to be a north pole, each auxiliary magnet (49) is connected with the corresponding main magnet (42) through magnetic attraction in different grades, each spring (48) is in a stretched state, and the elasticity of each spring (48) is lower than the magnetic attraction between the main magnet (42) and the auxiliary magnet (49).
  6. 6. The bridge expansion joint dustproof and anti-blocking device according to claim 1, wherein the top end of the positioning block (51) is abutted to the bottom end of the deformation pad (53), the deformation pad (53) and the sponge pad (52) are arranged in a V shape, the position of the deformation pad (53) corresponding to the supporting piece (2) is attached to the supporting piece (2), the deformation pad (53) is made of rubber, and the position of the deformation pad (53) corresponding to the sponge pad (52) is attached to the sponge pad (52).

Description

Dustproof anti-blocking device for bridge expansion joint Technical Field The invention relates to the technical field of bridge expansion joints, in particular to a dust-proof and anti-blocking device for a bridge expansion joint. Background In bridge engineering, the expansion joint is used as the key component of adaptation structural deformation, expose in outdoor environment for a long time, easily receive debris invasion accumulation such as silt, leaf, stone, these debris can influence the normal flexible function of expansion joint, and then produce adverse effect to bridge structure safety, consequently, dustproof anti-blocking device becomes the important component of expansion joint system, in the prior art, the bridge expansion joint dustproof anti-blocking device has formed diversified technical form, common type is including setting up in the grille cover plate on expansion joint surface, intercept large granule debris through hollow out construction, partial device adopts rubber sealing belt or elastic cushion, utilize material self elasticity to fill flexible clearance, block debris entering, in addition, the scheme sets up filter elements such as dust screen, dust filter pad in the expansion joint is inside, realize the interception in grades, the design core of these devices is around the interception debris, the expansion function expansion of adaptation is expanded, the mainstream technical scheme in the industry at present has been formed. For example, patent document CN116856271a discloses a bridge expansion joint, which comprises a first support, a second support, a first waterproof member, a mounting seat, a plurality of swing legs, a plurality of telescopic legs and a protective layer, wherein a gap is formed between the second support and the first support, the mounting seat is positioned in the gap, one end of each swing leg is rotatably connected with the mounting seat, and the other end of each swing leg is connected with the first support or the second support. One end of each telescopic supporting leg is connected with the mounting seat, and the other end of each telescopic supporting leg is connected with the first waterproof piece. When part of the positions on the first waterproof piece are stressed, the force is redistributed through the telescopic support legs, the swinging support legs and the mounting seat, and is transferred to the first support and the second support, so that on one hand, the bearing capacity of the first waterproof piece is improved, the abrasion of the connecting positions of the first waterproof piece and the first support and the second support is reduced, on the other hand, overload damage of the telescopic support legs near the stressed positions of the first waterproof piece is avoided, and although the application has a plurality of beneficial effects, the first waterproof piece is made of flexible materials, the bottom of the first waterproof piece is provided with a plurality of linkage parts, when the first waterproof piece bears the pressure, a large recess is formed between the first support and the second support, and then the linkage parts at the bottom are driven to synchronously link, and in the process, the top of the first waterproof piece is required to bear the pressure generated by vehicle passing, and the bottom is also required to bear the reaction force from the linkage parts, so that the bidirectional stress can obviously accelerate the loss of the first waterproof piece, shorten the service life of the first waterproof piece, and finally cause dust prevention, anti-blocking and waterproof function failure of the expansion joint. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a dustproof and anti-blocking device for a bridge expansion joint. The technical scheme includes that the bridge expansion joint dustproof and anti-blocking device comprises two section steels, support pieces are fixedly connected between the section steels together, a plurality of steel bar connecting pieces are fixedly connected to the side walls of the section steels, a blocking mechanism is arranged between the section steels together, the blocking mechanism comprises two support rods and two main magnets, the top ends of the support rods are fixedly connected with connecting rods, the connecting rods are fixedly connected with blocking pads in a sliding mode, the bottom ends of the blocking pads are fixedly connected with connecting pieces, the bottom ends of the connecting pieces are fixedly connected with mounting plates, symmetrically-arranged sliding grooves are formed in the mounting plates, a plurality of springs are fixedly connected to the inside of the sliding grooves, auxiliary magnets are fixedly connected to the bottom ends of the mounting plates, positioning blocks are fixedly connected to the bottom ends of the vertical rods, sponge pads are sleeved on the vertical rods in a sliding mode, and de