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CN-122013699-A - Auxiliary deceleration strip for bridge body safety vibration detection

CN122013699ACN 122013699 ACN122013699 ACN 122013699ACN-122013699-A

Abstract

The application relates to the field of bridge deck detection in bridge engineering and discloses an auxiliary deceleration strip for bridge safety vibration detection, which comprises a main rod and an auxiliary rod, wherein a plurality of third placers, second placers and first placers with two through holes are arranged between the main rod and the outside of the auxiliary rod, regulating mechanisms are arranged at the left end and the right end of the main rod and the right end of the auxiliary rod, pressing mechanisms are arranged at the right end of the main rod and the right end of the auxiliary rod, the main rod comprises a main limiter, a first main supporting rod is fixedly connected to the outside of the main limiter, and a second main supporting rod is arranged inside the first main supporting rod. The application utilizes the sleeving structure of the multistage brace rod, so that the second and third main brace rods and the third auxiliary brace rod can be respectively telescopic in the upper stage brace rod. The design can enable the device to shrink during transportation to effectively reduce storage space, and can adjust the telescopic length according to the intervals between the axles of different heavy trucks during operation to facilitate the adjustment of the position of the load applied to the surface of the placer.

Inventors

  • LIU MANDONG
  • FENG YULONG
  • LIU YANDONG

Assignees

  • 兰州交通大学

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. The auxiliary speed reducing belt for bridge body safety vibration detection is characterized by comprising a main rod (1) and an auxiliary rod (2), wherein a plurality of third placers (6), second placers (7) and first placers (8) with two through holes are arranged between the main rod (1) and the outside of the auxiliary rod (2), regulating mechanisms (3) are arranged at the left end and the right end of the main rod (1) and the right end of the auxiliary rod (2), and pressing mechanisms (4) are arranged at the right end of the main rod (1) and the right end of the auxiliary rod (2); The main rod (1) comprises a main limiter (101), a first main supporting rod (102) is fixedly connected to the outside of the main limiter (101), a second main supporting rod (103) is arranged inside the first main supporting rod (102), and a third main supporting rod (104) is arranged inside the second main supporting rod (103); The auxiliary rod (2) comprises an auxiliary limiter (201), a first auxiliary stay rod (202) is fixedly connected to the outside of the auxiliary limiter (201), a second auxiliary stay rod (203) is arranged inside the first auxiliary stay rod (202), and a third auxiliary stay rod (204) is arranged inside the second auxiliary stay rod (203); Bolt holes (5) are formed in the main limiter (101), the third main stay bar (104), the auxiliary limiter (201) and the third auxiliary stay bar (204).
  2. 2. An auxiliary deceleration strip for bridge body safe vibration detection according to claim 1, characterized in that the through hole size of the third placer (6) corresponds to the peripheral sizes of the third main stay (104) and the third auxiliary stay (204), the through hole size of the second placer (7) corresponds to the peripheral sizes of the second main stay (103) and the second auxiliary stay (203), and the through hole size of the first placer (8) corresponds to the peripheral sizes of the first main stay (102) and the first auxiliary stay (202).
  3. 3. An auxiliary deceleration strip for bridge body safe vibration detection according to claim 1, wherein the second main stay (103) stretches into the first main stay (102), the third main stay (104) stretches into the second main stay (103), the second auxiliary stay (203) stretches into the first auxiliary stay (202), and the third auxiliary stay (204) stretches into the second auxiliary stay (203).
  4. 4. The auxiliary speed reducing belt for bridge body safety vibration detection according to claim 1, wherein the third placer (6), the second placer (7) and the first placer (8) are distributed in straight line at equal intervals.
  5. 5. The auxiliary speed bump for bridge body safety vibration detection according to claim 1, wherein the adjusting mechanism (3) comprises a first bolt (301), the first bolt (301) is in threaded connection inside the bolt hole (5), a gasket (302) is arranged outside the first bolt (301), a support plate (303) is in threaded connection with the lower side of the first bolt (301), a spring (304) is arranged at the bottom end of the first bolt (301), a base (306) is fixedly connected with the bottom end of the spring (304), two buffer cylinder cores (307) are fixedly connected with the bottom of the support plate (303), a buffer cylinder outer cylinder body (308) is connected with the outside of the buffer cylinder core (307) in a sliding mode, an annular sealing ring (309) and a high-density rubber pad (310) are arranged on the inner wall of the buffer cylinder outer cylinder body (308), and the bottom end of the buffer cylinder outer cylinder body (308) is fixedly connected with the top of the base (306).
  6. 6. The auxiliary speed bump for bridge safety vibration detection according to claim 5, wherein a fixed outer ring (305) is fixedly connected to the top of the base (306), and the fixed outer ring (305) is disposed on the lower side of the spring (304).
  7. 7. The auxiliary speed bump for bridge safety vibration detection according to claim 5, wherein the gasket (302) is mounted on the top of the bolt hole (5), the outer portion of the buffer cylinder core (307) is slidably connected inside the annular sealing ring (309), and the bottom end of the buffer cylinder core (307) is abutted against the top of the high-density rubber pad (310).
  8. 8. An auxiliary speed bump for bridge safety vibration detection according to claim 5, characterized in that the spring (304) is mounted between two of the buffer cylinder outer cylinders (308).
  9. 9. The auxiliary deceleration strip for bridge body safety vibration detection according to claim 1, wherein the pressing mechanism (4) comprises two limit rings (404) and a plurality of fixing rods (401), the outer parts of the fixing rods (401) are fixedly connected with the outer parts of the main limiter (101) and the auxiliary limiter (201) respectively, a reaction force platform (402) is fixedly connected between the right ends of the fixing rods (401) on the same side, a second bolt (403) is rotatably connected inside the reaction force platform (402), a sliding plate (405) is connected with the middle part of the second bolt (403) in a threaded manner, a plurality of pressing rods (406) are fixedly connected to the left side of the sliding plate (405), the pressing rods (406) are abutted to the right sides of the first placer (8), and the limit rings (404) are fixedly connected to the right sides of the main limiter (101) and the auxiliary limiter (201) respectively, and the left side of the second bolt (403) is rotatably connected to the inner side of the limit rings (404).
  10. 10. An auxiliary deceleration strip for bridge body safety vibration detection according to claim 9, wherein the left end of the second bolt (403) is rotatably connected to the right side of the main limiter (101) or the auxiliary limiter (201), and the inside of the sliding plate (405) is slidably connected to the outside of the fixed rod (401).

Description

Auxiliary deceleration strip for bridge body safety vibration detection Technical Field The invention relates to the field of bridge deck detection of bridge engineering, in particular to an auxiliary deceleration strip for detecting safe vibration of a bridge body. Background In order to accurately detect the vibration state of the bridge, a heavy truck is generally adopted to quickly pass through a deceleration strip on the road surface of the bridge body so as to excite the bridge body to vibrate, so that vibration data are obtained to analyze and judge whether the bridge has service safety. In the current practical detection operation, operators often use non-professional tools such as bricks, wood blocks and the like to temporarily serve as a deceleration strip. Because of the lack of fixed structure and poor stability of these temporary alternatives, heavy trucks tend to cause the appliance to pop out of the tire side during rapid transit, thereby initiating an intentional human trauma event. If the existing conventional deceleration strip is adopted, although the stability is improved, most of the deceleration strips are of an integrated or fixed splicing structure, so that the occupied storage space in the carrying process is large, and the deceleration strips are inconvenient to carry; Meanwhile, the length of the device is fixed, the flexible adjustment cannot be carried out according to the distances between the vehicle body axles of heavy trucks of different models, and the requirement of accurately applying excitation load is difficult to meet. In addition, the existing speed reducer is usually fixed on the road surface by bolts, and the installation mode can cause irreversible damage to the road surface of the bridge body, so that maintenance of the bridge is not facilitated. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an auxiliary deceleration strip for bridge body safety vibration detection, which solves the problems of poor safety, inconvenient transportation and storage, incapability of adjusting length to adapt to vehicle types and mounting damaged pavement of the existing deceleration strip for bridge body vibration detection. In order to achieve the above purpose, the invention is realized by the following technical scheme: An auxiliary deceleration strip for bridge body safety vibration detection comprises a main rod and an auxiliary rod, wherein a plurality of third placers, second placers and first placers with two through holes are arranged between the main rod and the outer part of the auxiliary rod, adjusting mechanisms are arranged at the left end and the right end of the main rod and the right end of the auxiliary rod, and pressing mechanisms are arranged at the right end of the main rod and the right end of the auxiliary rod; the main rod comprises a main limiter, wherein a first main supporting rod is fixedly connected to the outer part of the main limiter, a second main supporting rod is arranged in the first main supporting rod, and a third main supporting rod is arranged in the second main supporting rod; The auxiliary rod comprises an auxiliary limiter, a first auxiliary supporting rod is fixedly connected to the outer part of the auxiliary limiter, a second auxiliary supporting rod is arranged in the first auxiliary supporting rod, and a third auxiliary supporting rod is arranged in the second auxiliary supporting rod; the main limiter, the third main stay bar, the auxiliary limiter and the third auxiliary stay bar are internally provided with bolt holes. Preferably, the size of the through hole of the third placer corresponds to the peripheral sizes of the third main brace rod and the third auxiliary brace rod, the size of the through hole of the second placer corresponds to the peripheral sizes of the second main brace rod and the second auxiliary brace rod, and the size of the through hole of the first placer corresponds to the peripheral sizes of the first main brace rod and the first auxiliary brace rod. Preferably, the second main stay bar stretches out and draws back to be in inside the first main stay bar, the third main stay bar stretches out and draws back to be in inside the second main stay bar, the second auxiliary stay bar stretches out and draws back to be in inside the first auxiliary stay bar, and the third auxiliary stay bar stretches out and draws back to be in inside the second auxiliary stay bar. Preferably, the third placer, the second placer and the first placer are distributed at equal intervals in a straight line. Preferably, the adjusting mechanism comprises a first bolt, the first bolt threaded connection is in inside the bolt hole, first bolt outside is provided with the packing ring, first bolt downside threaded connection has the extension board, first bolt bottom is provided with the spring, spring bottom fixedly connected with base, extension board bottom fixedly connected with two buffering jar co