Asphalt pavement shear fatigue detection equipment

Abstract

The utility model discloses asphalt pavement shear fatigue detection equipment, which comprises a detection structure, a support leg, an electric push rod and a pressing plate, the asphalt pavement shear fatigue detection equipment is provided with the detection structure to control a motor to operate, so that a screw rod drives a limiting plate to move downwards along a limiting rod, and the effect of limiting an asphalt pavement block is achieved; a water pump is controlled to operate, water in a water tank is pumped to a water outlet pipe through the water pump, the water is sprayed to an asphalt pavement block through a spray head, the effect of rainy day humidity is simulated, or an air heater is turned on to introduce hot air into a shell, the effect of sunny day high temperature is simulated, an electric push rod is controlled to stretch and apply pressure, and the effect of different load types is simulated. And the effect of conveniently simulating and detecting the asphalt pavement block is achieved, the representativeness of the detection structure is improved, the asphalt pavement is conveniently fixed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of pavement detection, in particular to a shear fatigue detection device for asphalt pavement. Background Art

[0002] When an automobile travels on an asphalt pavement of a steel bridge for a long time, a shear force will be generated on the asphalt pavement, which will cause the asphalt pavement to crack and damage. Therefore, to ensure the use stability of the asphalt pavement, before the asphalt pavement is laid, it is necessary to use a detection device to detect the shear fatigue degree of the asphalt pavement of the steel bridge, and improve and strengthen the asphalt pavement according to the detection results, so as to ensure the use stability of the asphalt pavement.

[0003] Chinese Patent No. CN220322995U discloses "A pavement shear fatigue degree detector", which includes a base; an oil cylinder fixedly connected to the base, and the output shaft of the oil cylinder is detachably connected with an extrusion structure. The extrusion structure includes a connecting plate, a plurality of extension parts with increasing sizes, a anti-disengagement protrusion and a slot. The connecting plate is clamped with the output shaft of the oil cylinder. Slots are symmetrically arranged on the wall surface of the extension part, the anti-disengagement protrusion is fixedly connected with the extension part, and the same slots are arranged on the wall surface of the connecting plate. The extension part is clamped with the slot on the wall surface of the connecting plate through the anti-disengagement protrusion. A plurality of extension parts are clamped in sequence from small to large to form a hollow frustum, and the extension part with the smallest diameter is clamped with the connecting plate to form a cap. The plurality of extension parts with gradually increasing diameters can increase the size of the extrusion shear area within a certain range, that is, the size of the detection surface, increasing the detection range, improving the adaptability and flexibility, and increasing the applicable range of the whole device;

[0004] Although the above pavement shear fatigue degree detector has certain advantages in terms of the ability of the detection range, the actual road conditions are complex and changeable, including temperature, humidity, load type, etc., and it is not easy to simulate these conditions, which may affect the representativeness of the detection results, and the asphalt pavement is not fixed, which is not convenient to use. Summary of the Utility Model

[0005] Therefore, to solve the above deficiencies, the utility model provides a shear fatigue detection device for asphalt pavement.

[0006] To achieve the above object, the utility model adopts the following technical solutions: An asphalt pavement shear fatigue detection device, comprising a detection structure, support legs, electric push rods and pressing plates. Support legs are installed at the four corners of the lower end surface of the detection structure. An electric push rod is installed in the middle of the upper end surface of the monitoring structure, and the lower end of the electric push rod penetrates through the detection structure and is installed with a pressing plate. The detection structure includes a housing, a glass door, a fixing structure, a spraying structure, an air outlet pipe, a drain pipe and a hot air blower. A glass door is arranged on the front side of the housing, and a fixing structure is installed on the lower end surface inside the housing. A spraying structure is installed on the left side of the upper end surface of the housing, an air outlet pipe is arranged on the right side of the upper end surface of the housing, a drain pipe is arranged at the bottom left side of the housing, and a hot air blower is installed in the middle of the right end surface of the housing. The electric push rod is installed on the housing.

[0007] Optionally, the fixing structure includes a mounting plate, a first limiting structure and a second limiting structure. The first limiting structure and the second limiting structure are respectively installed on the front and rear sides of the upper end surface of the mounting plate. The mounting plate is installed on the inner wall of the housing.

[0008] Optionally, the spraying structure includes a water pump, a water suction pipe, a water tank, a water outlet pipe and a spray head. The upper end of the water pump is connected to one end of the water suction pipe, and the other end of the water suction pipe is connected to the water tank. The right end of the water pump is connected to one end of the water outlet pipe, and the other end of the water outlet pipe is installed with a spray head. The water pump and the water tank are both installed on the housing.

[0009] Optionally, the first limiting structure includes a connecting plate, a rectangular plate, a motor, a waterproof shell, a screw rod, a limiting rod and a limiting plate. The upper end surfaces of two groups of the connecting plates are installed with a rectangular plate. A motor is installed on the left side of the upper end surface of the rectangular plate. A waterproof shell is arranged outside the motor and is installed on the rectangular plate. The output end of the motor penetrates through the rectangular plate and is in transmission connection with one end of the screw rod, and the other end of the screw rod is rotatably connected to the mounting plate through a bearing. One end of a limiting rod is fixed to the right side of the lower end surface of the rectangular plate, and the other end of the limiting rod is fixed to the mounting plate. The limiting plate penetrates through the upper sides of the screw rod and the limiting rod, and the inner wall of the limiting plate is in threaded connection with the screw rod. The connecting plate is installed on the mounting plate.

[0010] Optionally, a one-way valve is installed on the upper side of the air outlet pipe, and a valve is installed on the left side of the drain pipe, which is beneficial to ventilation and drainage.

[0011] Optionally, the first limiting structure and the second limiting structure have the same structure and are symmetrically distributed, which is convenient for limiting the asphalt pavement block.

[0012] Optionally, the lower side of the water outlet pipe is arc-shaped, which is beneficial to spraying the detection area of the asphalt pavement block.

[0013] The beneficial effects of the utility model:

[0014] The utility model relates to an asphalt pavement shear fatigue detection device. By setting a detection structure and controlling the operation of a motor, a screw rod drives a limiting plate to move downward along a limiting rod, thereby achieving the effect of limiting an asphalt pavement block. By controlling the operation of a water pump, the water pump extracts the water inside a water tank to a water outlet pipe and sprays it onto the asphalt pavement block through a nozzle to simulate the effect of rainy humidity, or by turning on a hot air blower to introduce hot air into the interior of a housing to simulate the effect of high temperature on a sunny day. By controlling the extension and pressing of an electric push rod to simulate the effects of different load types, the effect of facilitating the simulation detection of an asphalt pavement block is achieved, the representativeness of the detection structure is improved, the asphalt pavement is convenient to fix, and it is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 is an internal structural schematic diagram of the structure of the utility model;

[0017] Figure 3 is a top view of the structure of the utility model;

[0018] Figure 4 is a schematic diagram of the spraying structure of the utility model;

[0019] Figure 5 is a schematic diagram of the first limiting structure of the utility model.

[0020] Wherein: detection structure - 1, support leg - 2, electric push rod - 3, pressing plate - 4, housing - 11, glass door - 12, fixing structure - 13, spraying structure - 14, air outlet pipe - 15, drain pipe - 16, hot air blower - 17, mounting plate - 131, first limiting structure - 132, second limiting structure - 133, water pump - 141, water suction pipe - 142, water tank - 143, water outlet pipe - 144, nozzle - 145, connecting plate - 1321, rectangular plate - 1322, motor - 1323, waterproof housing - 1324, screw rod - 1325, limiting rod - 1326, limiting plate - 1327. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to further explain the technical solution of the utility model, the following will be elaborated in detail through specific embodiments.

[0022] Please refer to Figure 1 and Figure 2, the present utility model provides an asphalt pavement shear fatigue detection device, which includes a detection structure 1, support legs 2, an electric push rod 3 and a pressing plate 4. Support legs 2 are installed at the four corners of the lower end surface of the detection structure 1. An electric push rod 3 is installed in the middle of the upper end surface of the monitoring structure 1, and the lower end of the electric push rod 3 penetrates through the detection structure 1 and is installed with a pressing plate 4. The detection structure 1 includes a housing 11, a glass door 12, a fixing structure 13, a spraying structure 14, an air outlet pipe 15, a drain pipe 16 and a hot air blower 17. A glass door 12 is arranged on the front side of the housing 11. A fixing structure 13 is installed on the lower end surface inside the housing 11. A spraying structure 14 is installed on the left side of the upper end surface of the housing 11. An air outlet pipe 15 is arranged on the right side of the upper end surface of the housing 11. A drain pipe 16 is arranged at the bottom left of the housing 11. A hot air blower 17 is installed in the middle of the right end surface of the housing 11. The electric push rod 3 is installed on the housing 11. A one-way valve is installed on the upper side of the air outlet pipe 15. A valve is installed on the left side of the drain pipe 16, which is beneficial to ventilation and drainage.

[0023] Please refer to Figure 3 and Figure 4 , the present utility model provides an asphalt pavement shear fatigue detection device. The fixing structure 13 includes a mounting plate 131, a first limiting structure 132 and a second limiting structure 133. The first limiting structure 132 and the second limiting structure 133 are respectively installed on the front and rear sides of the upper end surface of the mounting plate 131. The mounting plate 131 is installed on the inner wall of the housing 11. The spraying structure 14 includes a water pump 141, a water suction pipe 142, a water tank 143, a water outlet pipe 144 and a spray head 145. The upper end of the water pump 141 is connected to one end of the water suction pipe 142, and the other end of the water suction pipe 142 is connected to the water tank 143. The right end of the water pump 141 is connected to one end of the water outlet pipe 144, and a spray head 145 is installed at the other end of the water outlet pipe 144. The water pump 141 and the water tank 143 are both installed on the housing 11. The structures of the first limiting structure 132 and the second limiting structure 133 are the same and are symmetrically distributed, which is convenient for limiting the asphalt pavement block. The lower side of the water outlet pipe 144 is arc-shaped, which is beneficial to spraying the detection area of the asphalt pavement block.

[0024] Please refer to Figure 5, the present utility model provides an asphalt pavement shear fatigue detection device. The first limiting structure 132 includes a connecting plate 1321, a rectangular plate 1322, a motor 1323, a waterproof shell 1324, a screw rod 1325, a limiting rod 1326 and a limiting plate 1327. The upper end surfaces of two groups of connecting plates 1321 are provided with a rectangular plate 1322. The left side of the upper end surface of the rectangular plate 1322 is provided with a motor 1323. The outside of the motor 1323 is provided with a waterproof shell 1324, and the waterproof shell 1324 is installed on the rectangular plate 1322. The output end of the motor 1323 passes through the rectangular plate 1322 and is in transmission connection with one end of the screw rod 1325, and the other end of the screw rod 1325 is rotationally connected to the mounting plate 131 through a bearing. One end of a limiting rod 1326 is fixed to the lower end surface of the right side of the rectangular plate 1322, and the other end of the limiting rod 1326 is fixedly connected to the mounting plate 131. The upper sides of the screw rod 1325 and the limiting rod 1326 penetrate through a limiting plate 1327, and the inner wall of the limiting plate 1327 is threadedly connected to the screw rod 1325. The connecting plate 1321 is installed on the mounting plate 131.

[0025] The working principle is as follows:

[0026] First, first place the new device at the required position and conduct circuit connection;

[0027] Second, by opening the glass door 12, place the asphalt pavement block to be detected in the middle of the upper end surface of the mounting plate 131, close the glass door 12, control the motor 1323 of the first limiting structure 132 and the second limiting structure 133 to rotate. The output end of the motor 1323 drives the screw rod 1325 to rotate, and the screw rod 1325 drives the limiting plate 1327 to move. The limiting plate 1327 slides downward by the limitation of the limiting rod 1326, achieving the effect of fixing the asphalt pavement block, avoiding the movement of the asphalt pavement block, and being able to observe through the glass door 12. Control the electric push rod 3 to extend, and the electric push rod 3 drives the pressing plate 4 to conduct shear fatigue detection on the asphalt pavement block, avoiding injury caused by fragmentation and sputtering of the asphalt pavement block;

[0028] Third, by controlling the operation of the water pump 141, the water pump 141 uses the water suction pipe 142 to extract the water source inside the water tank 143 to the water outlet pipe 144 and sprays it in the form of a spray through the nozzle 145 to simulate the effect of rainy humidity, or by controlling the operation of the hot air blower 17, the hot air blower 17 inputs hot air into the inside of the housing 11 to simulate the effect of high temperature on sunny days, and the type of different loads can be adjusted by controlling the pressure applied by the electric push rod 3, improving the representativeness of the detection structure and facilitating use.

[0029] The control mode of the present utility model is controlled by manually starting and closing a switch. The wiring diagram of the power element and the power supply are common knowledge in the art, and the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and wiring layout of the present utility model will not be explained in detail.

[0030] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the art, and the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and circuit connection of the present utility model will not be explained in detail.

[0031] The above are only preferred examples of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An asphalt pavement shear fatigue detection device, characterized in that: The invention comprises a detection structure (1), a support leg (2), an electric push rod (3) and a pressure plate (4); the support leg (2) is installed at the four corners of the lower end surface of the detection structure (1); the electric push rod (3) is installed in the middle of the upper end surface of the detection structure (1); and the lower end of the electric push rod (3) penetrates the detection structure (1) and is installed with a pressure plate (4); the detection structure (1) comprises a housing (11), a glass door (12), a fixing structure (13), a spray structure (14), an air outlet pipe (15), and a drainage pipe (16). and a hot air blower (17), a glass door (12) is arranged on the front side of the shell (11), a fixing structure (13) is installed on the inner lower end surface of the shell (11), a spray structure (14) is installed on the left side of the upper end surface of the shell (11), an air outlet pipe (15) is arranged on the right side of the upper end surface of the shell (11), a drainage pipe (16) is arranged on the left bottom of the shell (11), a hot air blower (17) is installed in the middle of the right end surface of the shell (11), and the electric push rod (3) is installed on the shell (11).

2. According to claim 1, the asphalt pavement shear fatigue detection equipment is characterized by: The fixing structure (13) comprises a mounting plate (131), a first limiting structure (132) and a second limiting structure (133); the first limiting structure (132) and the second limiting structure (133) are respectively installed on the front and rear sides of the upper end face of the mounting plate (131); and the mounting plate (131) is installed on the inner wall of the outer shell (11).

3. The asphalt pavement shear fatigue detection device according to claim 1, characterized in that: The spray structure (14) comprises a water pump (141), a water suction pipe (142), a water tank (143), a water outlet pipe (144) and a nozzle (145); the upper end of the water pump (141) is connected to one end of the water suction pipe (142), and the other end of the water suction pipe (142) is connected to the water tank (143); the right end of the water pump (141) is connected to one end of the water outlet pipe (144), and the other end of the water outlet pipe (144) is equipped with a nozzle (145); the water pump (141) and the water tank (143) are both installed on the housing (11).

4. The asphalt pavement shear fatigue detection device according to claim 2, characterized in that: The first limiting structure (132) comprises a connecting plate (1321), a rectangular plate (1322), a motor (1323), a waterproof shell (1324), a screw (1325), a limiting rod (1326) and a limiting plate (1327); the upper end surfaces of the two groups of connecting plates (1321) are mounted with rectangular plates (1322); the motor (1323) is mounted on the left side of the upper end surface of the rectangular plate (1322); a waterproof shell (1324) is arranged on the outer side of the motor (1323); and the waterproof shell (1324) is mounted on the rectangular plate (1322); the output end of the motor (1323) is connected to the outer side of the motor (1323); The rectangular plate (1322) is transmission-connected to one end of the screw rod (1325), and the other end of the screw rod (1325) is rotationally connected to the mounting plate (131) via a bearing; one end of a limiting rod (1326) is fixed to the right side of the lower end surface of the rectangular plate (1322), and the other end of the limiting rod (1326) is fixedly connected to the mounting plate (131); the upper sides of the screw rod (1325) and the limiting rod (1326) pass through the limiting plate (1327), and the inner wall of the limiting plate (1327) is threadedly connected to the screw rod (1325); and the connecting plate (1321) is mounted on the mounting plate (131).

5. The asphalt pavement shear fatigue detection device according to claim 1, characterized in that: A one-way valve is installed on the upper side of the air outlet pipe (15), and a valve is installed on the left side of the drain pipe (16).

6. The asphalt pavement shear fatigue detection device according to claim 2, characterized in that: The first limiting structure (132) and the second limiting structure (133) have the same structure and are symmetrically distributed.

7. The asphalt pavement shear fatigue detection device according to claim 3, characterized in that: The lower side of the water outlet pipe (144) is arc-shaped.

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