Bridge maintenance material performance testing device

Abstract

The utility model relates to the technical field of bridge maintenance test devices, in particular to a bridge maintenance material performance test device which comprises a test box, a mounting seat, an equipment table, a water level adjusting mechanism and a wave making mechanism, the test box is provided with a water circulation mechanism for simulating water flow; the mounting seat is arranged in the test box and is used for fixing a to-be-tested bridge maintenance material into the test box; the equipment table is mounted at the bottom of the test box; the water level adjusting mechanism is mounted on the equipment table; and the wave making mechanism is arranged in the test box. Through the arrangement of the water circulation mechanism, the condition that water flow scours the bridge pier in the nature can be well simulated, the water level adjusting mechanism can well simulate the change of the river water level, and the wave making mechanism can well describe the surging of the river water. The performance test of the bridge maintenance material can simulate various severe conditions of the bridge pier in the nature as much as possible, so that the error of the test result can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge maintenance test devices, and particularly relates to a test device for the performance of bridge maintenance materials. Background Art

[0002] Bridge maintenance refers to the inspection, detection, evaluation, and repair and reinforcement work carried out to ensure that the bridge is always in a normal working state. In cold regions, bridges are prone to salt freezing, resulting in concrete damage. In severe cases, the concrete can expand and crack, and the steel bars can rust. According to the degree of damage of such bridge durability diseases, repair concrete, mortar, or coating materials need to be used for repair.

[0003] Patent authorization announcement number CN206974873U discloses a test device for the anti-salt-freezing performance of highway concrete bridge maintenance materials. A stainless steel test mold is arranged in a high and low temperature alternating climate test chamber. The inside of the stainless steel test mold is filled with antifreeze. Six cylindrical rubber molds are installed inside the stainless steel test mold. Each rubber mold is internally installed with a concrete or mortar specimen, which can objectively evaluate the anti-salt-freezing performance of highway concrete bridge maintenance materials.

[0004] However, the above technical solution has the following deficiencies: Although freeze-thaw cycles and wet-dry cycles can better simulate the harsh environment of temperature and humidity changes in the bridge, they cannot simulate the environment where the bridge piers in the river are constantly washed by water flow and surges all year round. And the washing of water flow and surges is also a great test for the performance of bridge maintenance materials, resulting in a large error in the final test results. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a test device for the performance of bridge maintenance materials in view of the problems in the background art.

[0006] The technical solution of the utility model: A test device for the performance of bridge maintenance materials, comprising:

[0007] A test chamber, which is provided with a water circulation mechanism for simulating water flow;

[0008] A mounting seat, which is arranged in the test chamber for fixing the bridge maintenance materials to be tested in the test chamber;

[0009] An equipment platform, which is installed at the bottom of the test chamber for providing an installation basis for respective equipment;

[0010] A water level adjustment mechanism, which is installed on the equipment platform. One end of the water level adjustment mechanism is connected to the test chamber, and the other end of the water level adjustment mechanism is connected to the water circulation mechanism;

[0011] A wave-making mechanism, which is arranged inside the test chamber for creating surges in a simulated river.

[0012] Preferably, the water circulation mechanism includes a circulation pump, an inlet pipe and a return pipe; the circulation pump is installed on the equipment table, one end of the inlet pipe is connected to the test box, the other end of the inlet pipe is connected to the outlet of the circulation pump, one end of the return pipe is connected to the test box, and the other end of the return pipe is connected to the inlet of the circulation pump.

[0013] Preferably, the water level regulating mechanism includes a regulating box, a drain pipe and a water supply pipe; the regulating box is installed under the equipment table, the inlet of the drain pipe is connected to the test box, the outlet of the drain pipe is connected to the regulating box, the inlet of the water supply pipe is connected to the regulating box, and the outlet of the water supply pipe is connected to the inlet of the circulating pump.

[0014] Preferably, the wave-making mechanism includes a wave-making board, a mounting shaft, a follower assembly and a drive assembly; the wave-making board is installed in a test box, two mounting shafts are provided, one end of the two mounting shafts is fixedly connected to the wave-making board, the other end of the mounting shaft passes through the test box and extends to the outside of the test box, the mounting shaft is rotatably connected to the test box, two follower assemblies are provided, one end of the two follower assemblies is rotatably connected to the test box, the other end of the two follower assemblies is rotatably connected to the wave-making board through a hinge, and two drive assemblies are provided, and the output ends of the two drive assemblies are respectively transmission-connected to the two mounting shafts.

[0015] Preferably, each set of follower components includes a connecting plate and a connecting frame; one end of the connecting plate is rotatably connected to the wavemaking board through a hinge, the connecting frame is rotatably connected to the test box, and the connecting plate extends to the interior of the connecting frame and is slidably connected to the connecting frame.

[0016] Preferably, each drive assembly includes a drive motor, a crankshaft, a rocker and a transmission rod; the drive motor is connected to the test box through a mounting plate, the crankshaft is connected to the output end of the drive motor, the rocker is rotationally connected to the crankshaft, one end of the transmission rod is rotationally connected to the rocker, and the other end of the transmission rod is fixedly connected to the mounting shaft.

[0017] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0018] The utility model can well simulate the situation of water flow scouring bridge piers in nature through the setting of the water circulation mechanism, the water level regulating mechanism can well simulate the change of river water level, and the wave-making mechanism can well depict the surge of river water, so that the performance test of bridge maintenance materials can simulate as much as possible the various adverse conditions that the bridge piers are exposed to in nature, thereby effectively reducing the error of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an embodiment of the present utility model;

[0020] Figure 2A cross-sectional view of a test chamber in an embodiment proposed by the present utility model;

[0021] Figure 3 A perspective view of a driving assembly in an embodiment proposed by the present utility model;

[0022] Figure 4 A perspective view of a connection frame in an embodiment proposed by the present utility model.

[0023] Reference numerals: 1, test chamber; 2, water circulation mechanism; 21, circulation pump; 22, water inlet pipe; 23, water return pipe; 3, mounting seat; 4, wave-making mechanism; 41, wave-making plate; 42, mounting shaft; 43, follower assembly; 431, connecting plate; 432, connection frame; 44, driving assembly; 441, driving motor; 442, crankshaft; 443, rocker; 444, transmission rod; 5, water level adjustment mechanism; 51, adjustment tank; 52, drain pipe; 53, make-up water pipe; 6, equipment platform. Detailed implementation manners

[0024] Embodiment 1

[0025] As Figures 1-4 shown, a performance test device for bridge maintenance materials proposed by the present utility model includes a test chamber 1, a mounting seat 3, an equipment platform 6, a water level adjustment mechanism 5 and a wave-making mechanism 4;

[0026] The test chamber 1 is provided with a water circulation mechanism 2 for simulating water flow;

[0027] The mounting seat 3 is arranged inside the test chamber 1 for fixing the bridge maintenance materials to be tested inside the test chamber 1;

[0028] The equipment platform 6 is installed at the bottom of the test chamber 1 for providing an installation foundation for respective equipment;

[0029] The water level adjustment mechanism 5 is installed on the equipment platform 6, one end of the water level adjustment mechanism 5 is connected to the test chamber 1, and the other end of the water level adjustment mechanism 5 is connected to the water circulation mechanism 2;

[0030] The wave-making mechanism 4 is arranged inside the test chamber 1 for generating surges in a simulated river.

[0031] Embodiment 2

[0032] As Figure 1As shown in the figure, a performance test device for bridge maintenance materials proposed by the present utility model specifically discloses the structure of the water circulation mechanism 2 compared with the first embodiment; the water circulation mechanism 2 includes a circulation pump 21, a water inlet pipe 22, and a water return pipe 23; the circulation pump 21 is installed on the equipment table 6, and the circulation pump 21 is driven by a variable-frequency motor and is connected to the control system and the power supply through wires, which is convenient for adjusting the water flow velocity change in the simulated environment. One end of the water inlet pipe 22 is communicated with the test chamber 1, the other end of the water inlet pipe 22 is communicated with the outlet of the circulation pump 21, one end of the water return pipe 23 is communicated with the test chamber 1, and the other end of the water return pipe 23 is communicated with the inlet of the circulation pump 21.

[0033] Embodiment Three

[0034] As Figure 1 As shown in the figure, a performance test device for bridge maintenance materials proposed by the present utility model specifically discloses the structure of the water level adjustment mechanism 5 compared with the second embodiment; the water level adjustment mechanism 5 includes an adjustment tank 51, a drain pipe 52, and a water supply pipe 53; the adjustment tank 51 is installed below the equipment table 6, the inlet of the drain pipe 52 is communicated with the test chamber 1, a control valve is provided at the inlet of the drain pipe 52, the outlet of the drain pipe 52 is communicated with the adjustment tank 51, the inlet of the water supply pipe 53 is communicated with the adjustment tank 51, the outlet of the water supply pipe 53 is communicated with the inlet of the circulation pump 21, the water supply pipe 53 and the water return pipe 23 are connected to the inlet of the circulation pump 21 through a tee pipe, and control valves are provided on both the water supply pipe 53 and the water return pipe 23.

[0035] Embodiment Four

[0036] As Figures 1-4As shown, a bridge maintenance material performance test device proposed by the utility model, compared with the third embodiment, this embodiment further specifically discloses the structure of a wave-making mechanism 4; the wave-making mechanism 4 includes a wave-making plate 41, a mounting shaft 42, a follower assembly 43 and a driving assembly 44; the wave-making plate 41 is installed in the test box 1, and two mounting shafts 42 are provided. One end of the two mounting shafts 42 is fixedly connected to the wave-making plate 41, and the other end of the mounting shaft 42 passes through the test box 1 and extends to the outside of the test box 1. The mounting shaft 42 is rotatably connected to the test box 1, and two follower assemblies 43 are provided. One end of the two follower assemblies 43 is rotatably connected to the test box 1, and the other end of the two follower assemblies 43 is rotatably connected to the wave-making plate 41 through a hinge, and each group of follower assemblies 43 includes a connecting plate 431 and a connecting frame 432; the connecting plate 431 One end is rotatably connected to the wave-making board 41 through a hinge, the connecting frame 432 is rotatably connected to the test box 1, the connecting plate 431 extends to the interior of the connecting frame 432 and is slidably connected to the connecting frame 432, and two drive components 44 are provided. The output ends of the two drive components 44 are respectively transmission-connected to the two mounting shafts 42, and each group of drive components 44 includes a drive motor 441, a crankshaft 442, a rocker 443 and a transmission rod 444; the drive motor 441 is connected to the test box 1 through the mounting plate, the drive motor 441 is a variable frequency motor, and is connected to the control system and the power supply through a wire, the crankshaft 442 is connected to the output end of the drive motor 441, the rocker 443 is rotatably connected to the crankshaft 442, one end of the transmission rod 444 is rotatably connected to the rocker 443, and the other end of the transmission rod 444 is fixedly connected to the mounting shaft 42.

[0037] The test piece to be tested is fixed to the test box 1 through the mounting seat 3, and an appropriate amount of river water is taken and put into the test box 1 and the adjustment box 51 respectively, and the driving motor 441 and the circulating pump 21 are turned on. The driving motor 441 drives the rocker 443 to swing through the crankshaft 442, and the swing of the rocker 443 drives the wave-making plate 41 to swing around the mounting shaft 42 through the transmission rod 444 and the mounting shaft 42. The swing of the wave-making plate 41 drives the connecting plates 431 on both sides to swing together, thereby driving the water in the test box 1 to fluctuate up and down to simulate the environment of river surge. When the connecting plate 431 swings, it drives the connecting frame 432 to swing together, and at the same time, the connecting plate 431 and the connecting frame 432 slide relative to each other. The circulating pump 21 works to pump out the water in the test box 1 from one side and send it into the other side through the water inlet pipe 22 and the water return pipe 23, so that the water forms a flow in the test box 1, thereby simulating the environment of water flushing.

[0038] 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 performance test device for bridge maintenance materials, characterized in that, include: A test box (1) provided with a water circulation mechanism (2) for simulating water flow; A mounting seat (3) is arranged in the test box (1) and is used to fix the bridge maintenance material to be tested in the test box (1); An equipment table (6) installed at the bottom of the test box (1) to provide a mounting base for each device; A water level regulating mechanism (5) is installed on the equipment platform (6), one end of the water level regulating mechanism (5) is connected to the test box (1), and the other end of the water level regulating mechanism (5) is connected to the water circulation mechanism (2); A wave-making mechanism (4) is arranged inside the test box (1) and is used to create surges in a simulated river.

2. The performance test device for a bridge maintenance material according to claim 1, wherein, The water circulation mechanism (2) comprises a circulation pump (21), a water inlet pipe (22) and a water return pipe (23); the circulation pump (21) is installed on the equipment table (6); one end of the water inlet pipe (22) is connected to the test box (1); the other end of the water inlet pipe (22) is connected to the outlet of the circulation pump (21); one end of the water return pipe (23) is connected to the test box (1); and the other end of the water return pipe (23) is connected to the inlet of the circulation pump (21).

3. The performance test device for a bridge maintenance material according to claim 2, characterized in that, The water level regulating mechanism (5) comprises a regulating box (51), a drainage pipe (52) and a water supply pipe (53); the regulating box (51) is installed below the equipment table (6); the inlet of the drainage pipe (52) is connected to the test box (1); the outlet of the drainage pipe (52) is connected to the regulating box (51); the inlet of the water supply pipe (53) is connected to the regulating box (51); and the outlet of the water supply pipe (53) is connected to the inlet of the circulation pump (21).

4. The performance test device for a bridge maintenance material according to claim 1, wherein The wave-making mechanism (4) comprises a wave-making plate (41), a mounting shaft (42), a follower assembly (43) and a drive assembly (44); the wave-making plate (41) is mounted in a test box (1); two mounting shafts (42) are provided; one end of the two mounting shafts (42) is fixedly connected to the wave-making plate (41); the other end of the mounting shaft (42) passes through the test box (1) and extends to the outside of the test box (1); the mounting shaft (42) is rotationally connected to the test box (1); two follower assemblies (43) are provided; one end of the two follower assemblies (43) is rotationally connected to the test box (1); the other end of the two follower assemblies (43) is rotationally connected to the wave-making plate (41) via a hinge; two drive assemblies (44) are provided; the output ends of the two drive assemblies (44) are respectively transmission-connected to the two mounting shafts (42).

5. The performance test device for a bridge maintenance material according to claim 4, characterized in that, Each follower assembly (43) comprises a connecting plate (431) and a connecting frame (432); one end of the connecting plate (431) is rotatably connected to the wave-making board (41) via a hinge, the connecting frame (432) is rotatably connected to the test box (1), and the connecting plate (431) extends into the interior of the connecting frame (432) and is slidably connected to the connecting frame (432).

6. The performance test device for bridge maintenance materials according to claim 4, characterized in that, Each set of driving components (44) includes a driving motor (441), a crankshaft (442), a rocker (443) and a transmission rod (444); the driving motor (441) is connected to the test chamber (1) through a mounting plate, the crankshaft (442) is connected to the output end of the driving motor (441), the rocker (443) is rotatably connected to the crankshaft (442), one end of the transmission rod (444) is rotatably connected to the rocker (443), and the other end of the transmission rod (444) is fixedly connected to the mounting shaft (42).

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