Bridge pavement compression resistance detection equipment

Abstract

The utility model relates to the technical field of road surface detection equipment, and particularly discloses bridge road surface compression resistance detection equipment, which comprises a lever beam, an airplane frame, a dial indicator and an indicator clamp, the bottom of the front end of the lever beam is connected with a test probe, the top of the rear end of the lever beam is connected with a measuring point screw, the lever beam is connected with a lap joint pin, and the lap joint pin is connected with the airplane frame. The lever beam is erected on the aircraft frame through a lap joint pin, a rotating arm is movably arranged at the position, at the rear end of the aircraft frame, below the lever beam, the first end of the rotating arm is hinged to a base of the aircraft frame, the upper end of the rotating arm is fixedly connected with an abutting rod, and the rotating arm is internally in threaded connection with an adjusting bolt; the rear end of the rotating arm is vertically and fixedly connected with a guide rod, the guide rod is movably connected with a meter clamp, the dial indicator is installed in the meter clamp, the position of the dial indicator can be rapidly and accurately adjusted, the influence caused by pits or uneven road surfaces can be completely eradicated, and the detection efficiency and accuracy can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection, in particular to a bridge road surface compression resistance detection device. Background Art

[0002] Deflection is the vertical deformation value of the road surface under the load of automobile wheels. It is a comprehensive indicator reflecting the overall compressive strength of the road surface. At present, the Beckman beam deflection instrument is often used for deflection test.

[0003] The Beckman beam deflection meter uses the lever principle to measure the road deflection value between the two wheels of the rear axle of the car. When measuring, the existing Beckman beam deflection meter installs the dial indicator on the rear end of the lever beam through the dial indicator bracket. Since the dial indicator bracket and the lever beam are independent, it is necessary to accurately adjust the position to align the dial indicator contact with the measuring point screw at the rear end of the lever beam. When the ground is flat, it can be aligned relatively quickly, but when the road surface has potholes and inclinations, it takes more time to adjust the position of the dial indicator bracket, which needs to be improved. Utility Model Content

[0004] In order to solve the problems mentioned in the background technology, the purpose of the utility model is to provide a bridge pavement compression resistance detection device.

[0005] In order to achieve the above objectives, the technical solution of the utility model is:

[0006] A bridge pavement compression testing device comprises a lever beam, an aircraft frame, a dial indicator and a gauge clamp, wherein a test probe is connected to the bottom of the front end of the lever beam, a measuring point screw is connected to the top of the rear end of the lever beam, a lap pin is connected to the lever beam, and the distance between the lap pin and the rear end of the lever beam is one-third of the total length of the lever beam, the lever beam is mounted on the aircraft frame through the lap pin, a rotating arm is movably arranged at the rear end of the aircraft frame below the lever beam, a first end of the rotating arm is hinged to the base of the aircraft frame and a rotating axis of the rotating arm is parallel to the lap pin, a resistance rod is fixedly connected to the upper end of the rotating arm, an adjusting bolt is connected to the internal thread of the rotating arm, a guide rod is vertically fixedly connected to the rear end of the rotating arm, a gauge clamp is movably connected to the guide rod, the dial indicator is installed in the gauge clamp, and when the rotating arm is parallel to the lever beam, the resistance rod is in contact with the lever beam, and the contact of the dial indicator can be aligned with the measuring point screw.

[0007] The beneficial effects of the utility model are as follows: before the test, the angle of the rotating arm is adjusted by adjusting the bolt, so that when the adjusting bolt contacts the ground, the contact rod just contacts the lever beam, so that the dial indicator is located just above the measuring point screw, and the contact of the dial indicator can be quickly and accurately contacted with the measuring point screw. Compared with the traditional Beckman beam deflection meter, the position of the dial indicator can be quickly adjusted to the right position even when there are potholes or inclinations on the road surface, which not only improves the detection efficiency, but also improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0009] Explanation of the accompanying figures: 1. lever beam, 11. test probe, 12. measuring point screw, 13. lap pin, 2. aircraft frame, 3. dial indicator, 4. dial clamp, 5. rotating arm, 51. resistance rod, 52. guide rod, 6. adjusting bolt. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.

[0011] like Figure 1 As shown, a bridge pavement compression testing device includes a lever beam 1, an aircraft frame 2, a dial indicator 3 and a dial clamp 4, a test probe 11 is connected to the bottom of the front end of the lever beam 1, a measuring point screw 12 is connected to the top of the rear end of the lever beam 1, and lap pins 13 are fixed to the left and right sides of the lever beam 1. The distance between the lap pin 13 and the rear end of the lever beam 1 is one third of the total length of the lever beam 1. The lever beam 1 is mounted on the aircraft frame 2 through the lap pin 13. A rotating arm 5 is movably provided at the rear end of the aircraft frame 2 below the lever beam 1. The rotating arm 5 and the lever beam 1 are located in the same plane, and the first end of the rotating arm 5 is hinged to the rear end of the base of the aircraft frame 2 and the rotating arm 5 can rotate The axis is parallel to the lap pin 13, and the rear end of the rotating arm 5 extends beyond the rear end of the lever beam 1. A resistance rod 51 is fixedly connected to the rear middle part of the upper end of the rotating arm 5, and the resistance rod 51 is perpendicular to the rotating arm 5. The rotating arm 5 is internally threaded with an adjusting bolt 6, which passes through the rotating arm 5 and is parallel to the resistance rod 51. A guide rod 52 is vertically fixedly connected to the rear end of the rotating arm 5, and the guide rod 52 is parallel to the resistance rod 51. A dial clamp 4 is movably connected to the guide rod 52, and a dial indicator 3 is installed in the dial clamp 4. When the rotating arm 5 is parallel to the lever beam 1, the resistance rod 51 is in contact with the lever beam 1, and the contact of the dial indicator 3 can be aligned with the measuring point screw 12.

[0012] The testing principle of the Beckmann deflectometer is the existing technology and its principle will not be repeated here. Before the test, the angle of the rotating arm 5 is adjusted by adjusting the bolt 6 so that when the adjusting bolt 6 contacts the ground, the contact rod 51 just contacts the lever beam 1, so that the dial indicator 3 is just located above the measuring point screw 12, and the contact of the dial indicator 3 can be quickly and accurately touched with the measuring point screw 12. Compared with the traditional Beckmann beam deflectometer, the position of the dial indicator 3 can be quickly adjusted to the right position even when there are potholes or slopes on the road surface, which not only improves the detection efficiency, but also improves the detection accuracy.

[0013] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bridge pavement compression testing device, comprising a lever beam, an aircraft frame, a dial indicator and a gauge clamp, wherein the bottom of the front end of the lever beam is connected to a test probe, the top of the rear end of the lever beam is connected to a measuring point screw, the lever beam is connected to a lap pin, the distance between the lap pin and the rear end of the lever beam is one third of the total length of the lever beam, the lever beam is mounted on the aircraft frame through the lap pin, and is characterized in that: A rotating arm is movably provided at the rear end of the aircraft frame below the lever beam, the first end of the rotating arm is hinged on the base of the aircraft frame and the rotating axis of the rotating arm is parallel to the lap pin, the upper end of the rotating arm is fixedly connected to a resistance rod, an adjusting bolt is connected to the internal thread of the rotating arm, a guide rod is vertically fixedly connected to the rear end of the rotating arm, a dial clamp is movably connected to the guide rod, the dial indicator is installed in the dial clamp, when the rotating arm is parallel to the lever beam, the resistance rod is in contact with the lever beam, and the contact of the dial indicator can be aligned with the measuring point screw.

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