Road, bridge and tunnel connecting device with protection function
By designing horizontally retractable medium beam and support beam structures, the problem of poor drainage of road bridge and tunnel connection devices in rainy days is solved, the comfort and stability of the vehicle when passing through is improved, and the steel plate is prevented from rusting.
Patent Information
- Application Number
- CN202420413335.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The existing road bridge-tunnel connection devices are not drained smoothly during rainy days, resulting in water accumulation in the gaps, which in turn accelerates steel plate corrosion and reduces the stability and comfort of the vehicle when passing through.
A road bridge-tunnel connection device including horizontally retractable middle beam and support beam is designed. Through structures such as anchor bars, strips and water guides, the gaps are kept flat, avoiding bumps, and reducing wear through rubber pads. and buffered rainwater inlet.
Improves the comfort and stability of the vehicle when passing through, prevents the middle beam from bending, ensures effective discharge of rainwater, and avoids rust on the steel plate.
Smart Images
Figure CN222160906U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of road bridges and tunnels, and more specifically, to a road bridge and tunnel connecting device with a protective function. Background Art
[0002] Road bridges and tunnels are generally composed of several parts, such as roadbed, pavement, bridges, tunnel engineering and traffic engineering facilities. During construction, multiple bearing bodies are connected to form a pavement, and the formed pavement is placed on the roadbed. In this process, multiple bearing bodies are connected by connecting devices. In order to prevent the connecting device from cracking or damaging the structure due to climate temperature changes (thermal expansion and contraction), a structural joint is set at an appropriate position along the construction joint direction of the building or structure, which is commonly known as an expansion joint. Although the existing expansion joints can drain water on rainy days, in daily use, dust will be raised when cars pass by, and mud and sand will be left on the road after the cars leave. A large amount of mud and sand will enter the expansion joint, which will block the drainage pipes in the expansion joints and cause water accumulation in the expansion joints. Long-term water accumulation will accelerate the rusting of the steel plates in the expansion joints. At the same time, the blockage of the drainage pipes will cause water accumulation on the road, which will cause damage to driving.
[0003] The document with prior art publication number CN216006603U provides a road bridge-tunnel connection device with a protective structure. The device is arranged with a connecting plate tilted, and the upper end of the connecting plate is lower than the upper end surfaces of the two bearing bodies. The connecting plate is arranged tilted to achieve a better water guiding effect.
[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the connecting plate is set at an angle, it will cause different degrees of depression at the expansion joint. Therefore, when the wheels pass by, it will cause different degrees of bumpy feeling to the vehicle. At the same time, it will also cause the vehicle to tilt to a deeper depressed position, thereby reducing the stability and comfort of the vehicle when passing.
[0005] In view of this, we propose a road bridge-tunnel connection device with protective function. Utility Model Content
[0006] 1. Technical problems to be solved
[0007] The purpose of the present application is to provide a road bridge-tunnel connection device with a protective function, which solves the technical problems in the above-mentioned background technology and achieves the technical effect of improving the comfort of vehicles when passing by.
[0008] 2. Technical solution
[0009] The technical solution of the present application provides a road bridge-tunnel connection device with a protective function, comprising: two groups of side beams, a horizontally retractable middle beam fixedly installed between the two groups of side beams, and a support beam for supporting the middle beam fixedly installed between the two groups of side beams.
[0010] By adopting the above technical solution, the two side beams are fixed on the two supporting bodies, and the middle beam can be telescopically adjusted in a plane state. Firstly, it can meet the telescopic adjustment between the two supporting bodies, and secondly, it ensures that the gap connection between the supporting bodies is in a plane state, so as to avoid the bumpy feeling caused by the passing of vehicles and improve the driving comfort of the vehicle. In addition, the middle beam is supported by the support beam to increase the supporting strength of the middle beam and avoid the middle beam being bent by the vehicle.
[0011] As an optional solution of the technical solution of this application document, an anchor bar is fixedly installed on the side of the side beam away from the support beam.
[0012] By adopting the above technical solution, the anchoring bars are pre-buried in the bearing body, so as to facilitate fixing the side beam on the bearing body.
[0013] As an optional solution of the technical solution of the present application document, the central beam includes a plurality of strip plates, the plurality of strip plates are arranged as a group at intervals, and two groups are provided, a group of strip plates are fixedly installed on opposite sides of the side beams, the two groups of strip plates are staggered, and the side beams are provided with movable holes adapted to the strip plates.
[0014] By adopting the above technical solution, a plurality of spaced-apart strip plates are welded and fixed on the opposite sides of each side beam, and a movable hole is reserved between every two strip plates of the side beam. The strip plates between the two side beams are slidably inserted into the relative movable holes to ensure that the middle beam can still maintain a planar state when extending or retracting.
[0015] As an optional solution of the technical solution of the present application document, the support beam is a trapezoidal plate, and a rubber pad is fixedly installed on one side of the upper surface of the support beam close to the middle beam.
[0016] By adopting the above technical solution, the middle beam is supported by the T-shaped support beam. At the same time, the support beam is compressed or stretched during the contraction of the side beams. Under the action of the rubber pad, it can buffer the support beam and the middle beam and reduce the wear between the support beam and the middle beam.
[0017] As an optional solution of the technical solution of the present application document, a water guide groove is symmetrically opened on one side of the support beam close to the middle beam.
[0018] By adopting the above technical solution, after rainwater passes through adjacent strip plates and falls between the support beam and the side beam, the rainwater is guided into the rainwater pipe through the water guide groove.
[0019] 3. Beneficial effects
[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0021] 1. In the present application, by fixing two side beams on two supporting bodies, the middle beam can be telescopically adjusted in a plane state. Firstly, it can meet the telescopic adjustment between the two supporting bodies, and secondly, it ensures that the gap connection between the supporting bodies is in a plane state, so as to avoid the bumpy feeling caused by the passing of vehicles and improve the driving comfort of the vehicle. The middle beam is supported by the support beam to increase the supporting strength of the middle beam and avoid the middle beam being bent by the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the overall structure of a road bridge-tunnel connection device with a protective function disclosed in a preferred embodiment of the present application;
[0023] Figure 2 This is a schematic diagram of the overall left-side structure of a road bridge-tunnel connection device with a protective function disclosed in a preferred embodiment of the present application;
[0024] Figure 3 A schematic diagram of a side beam structure of a road bridge-tunnel connection device with a protective function disclosed in a preferred embodiment of the present application;
[0025] Figure 4 A schematic diagram of a supporting beam structure of a road bridge-tunnel connection device with a protective function disclosed in a preferred embodiment of the present application;
[0026] Explanation of the numbers in the figure: 1. Side beam; 101. Movable hole; 2. Anchor bar; 3. Middle beam; 301. Strip plate; 4. Support beam; 401. Water guide channel; 5. Rubber pad. DETAILED DESCRIPTION
[0027] The present application is further described in detail below in conjunction with the accompanying drawings.
[0028] A road bridge-tunnel connection device with a protective function comprises: two groups of side beams 1, a horizontally retractable middle beam 3 is fixedly installed between the two groups of side beams 1, and a support beam 4 for supporting the middle beam 3 is fixedly installed between the two groups of side beams 1.
[0029] Reference Figure 1-Figure 4The two side beams 1 are fixed on the two bearing bodies, and the middle beam 3 can be telescopically adjusted in a plane state. Firstly, it can meet the telescopic adjustment between the two bearing bodies, and secondly, it ensures that the gap connection between the bearing bodies is in a plane state to avoid the bumpy feeling caused by the passing of vehicles and improve the driving comfort of the vehicle. The middle beam 3 is supported by the support beam 4 to increase the supporting strength of the middle beam 3 and avoid the middle beam 3 being bent by the vehicle.
[0030] An anchor bar 2 is fixedly installed on the side of the side beam 1 away from the support beam 4.
[0031] Reference Figure 1 , the anchor bar 2 is pre-embedded in the carrier to facilitate fixing the side beam 1 on the carrier.
[0032] The center beam 3 includes a plurality of strip plates 301, which are arranged as a group at intervals, and two groups are provided. A group of strip plates 301 is fixedly installed on the opposite sides of the side beams 1, and the two groups of strip plates 301 are staggered. The side beams 1 are provided with movable holes 101 adapted to the strip plates 301.
[0033] Reference Figure 1-Figure 3 A plurality of spaced strip plates 301 are welded and fixed to the opposite sides of each side beam 1, and a movable hole 101 is reserved between every two strip plates 301 of the side beam 1. The strip plates 301 between the two side beams 1 are slidably inserted into the relative movable holes 101 to ensure that the middle beam 3 can still maintain a planar state when expanding and contracting.
[0034] The support beam 4 is a trapezoidal plate, and a rubber pad 5 is fixedly mounted on one side of the upper surface of the support beam 4 close to the middle beam 3 .
[0035] Reference Figure 2 and Figure 4 The middle beam 3 is supported by the T-shaped support beam 4. At the same time, the support beam 4 is compressed or stretched during the contraction of the side beam 1. Under the action of the rubber pad 5, it can buffer the support beam 4 and the middle beam 3, and reduce the wear between the support beam 4 and the middle beam 3.
[0036] A water guide groove 401 is symmetrically provided on one side of the support beam 4 close to the middle beam 3 .
[0037] Reference Figure 2 and Figure 4 After the rainwater passes through the adjacent strip plates 301 and falls between the support beam 4 and the side beam 1, it is guided into the rainwater pipe through the water guide groove 401.
[0038] Working principle: The anchor bar 2 is embedded in the carrier. When the two carriers are extended or retracted, the strip plate 301 between the two side beams 1 is slid into the relative movable holes 101, so that the middle beam 3 can still maintain a flat state during the extension and retraction. The middle beam 3 is supported by the support beam 4 to improve the support strength of the middle beam 3 and avoid the middle beam 3 being bent by the vehicle. Finally, the bumpy feeling caused by the passing of the vehicle is avoided and the driving comfort of the vehicle is improved.
Claims
1. A road bridge-tunnel connection device with a protective function, characterized in that: include: Two groups of side beams (1), a horizontally retractable middle beam (3) is fixedly installed between the two groups of side beams (1), a support beam (4) for supporting the middle beam (3) is fixedly installed between the two groups of side beams (1), the middle beam (3) comprises a plurality of strip plates (301), the plurality of strip plates (301) are arranged in a group at intervals, and two groups are provided, a group of strip plates (301) is fixedly installed on opposite sides of the side beams (1), the two groups of strip plates (301) are staggered, and the side beams (1) are provided with movable holes (101) adapted to the strip plates (301).
2. A road bridge-tunnel connection device with a protective function according to claim 1, characterized in that: An anchor bar (2) is fixedly mounted on the side of the side beam (1) away from the support beam (4).
3. A road bridge-tunnel connection device with a protective function according to claim 1, characterized in that: The support beam (4) is a trapezoidal plate, and a rubber pad (5) is fixedly mounted on one side of the upper surface of the support beam (4) close to the middle beam (3).
4. A road bridge-tunnel connection device with a protective function according to claim 1, characterized in that: A water guide groove (401) is symmetrically provided on one side of the support beam (4) close to the middle beam (3).