Deflection detection device for roadbed and pavement extension

Abstract

The utility model belongs to the technical field of deflection detection, and particularly relates to a deflection detection device for roadbed pavement extension, which comprises a fulcrum rod, a support block arranged on the lower side of the fulcrum rod, a connecting block rotationally arranged on the lower side of the support block, a support arranged on the lower side of the connecting block, and a front arm rod arranged at one end of the fulcrum rod. A rear arm rod is arranged at the end, away from the front arm rod, of the fulcrum rod, a front arm groove is formed in the side, close to the fulcrum rod, of the upper side of the front arm rod in a penetrating mode, the fulcrum rod is connected with the front arm rod in an inserted mode through the front arm groove, and a rear arm groove is formed in the side, close to the fulcrum rod, of the upper side of the rear arm rod in a penetrating mode. The device can be freely switched between 3.6 m and 5.4 m, the length is changed through sliding of the two ends of the fulcrum rod in the front arm groove and the rear arm groove, the device is fixed through the U-shaped bolt, and switching is convenient and simple, so that the adaptive length is freely adjusted according to detection of different roadbeds and pavements, two devices of different specifications do not need to be carried, and the device is convenient to use. And convenience is provided for detection of different roadbeds and pavements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the deflection detection technical field, concretely relates to a deflection detection device for roadbed pavement extension. BACKGROUND

[0002] When the roadbed pavement is constructed or extended, the deflection detection of the roadbed pavement is generally needed. At present, the Beckman beam is generally used for the deflection detection of the roadbed pavement. In the detection, the probe rods of two parallel Beckman beams are inserted into the joint between the rear tires of the detection vehicle, and the circular seat of the deflection detector is pressed on the support point rear arm vertical rod. When the detection vehicle starts to move, the long pointer of the deflection detector quickly turns to a value, which is read as the initial value. When the detection vehicle moves away, the long pointer of the deflection detector turns to another value, which is read as the final value. The difference between the initial value and the final value is the deflection value.

[0003] At present, the Beckman beam is generally divided into two kinds of 3.6 meters and 5.4 meters, which are used for detecting different roadbed pavements. However, when different road surfaces are detected, it is troublesome to carry different lengths of Beckman beams, and the function of freely adjusting and adapting according to different roadbed pavement detection cannot be realized. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the purpose of the utility model is to provide a deflection detection device for roadbed pavement extension, which solves the problem that the current Beckman beam is generally divided into two kinds of 3.6 meters and 5.4 meters, which are used for detecting different roadbed pavements. However, when different road surfaces are detected, it is troublesome to carry different lengths of Beckman beams, and the function of freely adjusting and adapting according to different roadbed pavement detection cannot be realized.

[0005] The utility model discloses a technical scheme for realizing the above object: a deflection detection device for roadbed pavement extension, including fulcrum lever, the downside of fulcrum lever is provided with support block, the downside of support block is rotatably provided with connecting block, the downside of connecting block is provided with support, one end of fulcrum lever is provided with forearm lever, the end of fulcrum lever away from forearm lever is provided with rear arm lever, the upside of forearm lever's one side close to fulcrum lever is through and is provided with forearm groove, and the fulcrum lever is inserted with forearm lever through forearm groove, the upside of rear arm lever's one side close to fulcrum lever is through and is provided with rear arm groove, and the fulcrum lever is inserted with rear arm lever through rear arm groove, both ends of fulcrum lever are provided with end hole in parallel, the side of fulcrum lever is provided with connecting hole no.

[0006] The device can be freely switched between 3.6 meters and 5.4 meters, the length of the fulcrum lever can be changed by sliding the two ends of the fulcrum lever in the forearm groove and the rear arm groove, and the U-shaped bolt is used for fixing, so that the switching is convenient and simple, and the length can be freely adjusted and adapted according to different roadbed pavement detection, without the need to carry two different devices, thereby providing convenience for different roadbed pavement detection.

[0007] In order to adjust the level of the support;

[0008] As a further improvement of the above technical solution: the upper side of the support is provided with a bolt, and the bolt penetrates the support to the lower side and is provided with a bottom foot.

[0009] The improvement has the beneficial effect that the bolt of different angles is twisted to adjust the level of the support.

[0010] In order to use the horizontal bubble instrument for real-time reference;

[0011] As a further improvement of the above technical solution: the upper side of the fulcrum lever is provided with a horizontal bubble instrument above the support block.

[0012] The improvement has the beneficial effect that the horizontal bubble instrument is used for real-time reference.

[0013] In order to reduce the overall weight of the device;

[0014] As a further improvement of the above technical solution: the side of the forearm lever and the rear arm lever is provided with a through groove.

[0015] The beneficial effect of this improvement is that the through-slot is opened to reduce the overall weight of the device.

[0016] In order to measure real-time data during detection;

[0017] As a further improvement to the above technical solution: a vertical rod is provided on the upper side of the end of the rear boom rod away from the fulcrum rod, a round seat is provided on the upper end of the vertical rod, a dial indicator frame is provided on the side of the rear boom rod away from the fulcrum rod, a rod clamp is provided on the upper side of the dial indicator frame, a dial indicator is provided on one side of the rod clamp, and the output end of the dial indicator faces downward and contacts the upper side of the round seat.

[0018] The beneficial effect of this improvement is that it sets the dial indicator to contact the circular base, so as to measure real-time data during testing.

[0019] To facilitate moving the device to the next measuring point;

[0020] As a further improvement to the above technical solution: a fixing block is provided on the lower side of the end of the rear arm away from the fulcrum rod, a telescopic rod is rotatably provided on the lower side of the fixing block, and movable wheels are symmetrically provided on both sides of the lower end of the telescopic rod.

[0021] The beneficial effects of this improvement are as follows: When testing one test point, it is generally necessary to move to the next test point. Currently, the Beckman beam usually requires two people to lift, which is quite troublesome. With the addition of moving wheels and telescopic rods, the front arm can be lifted directly. The front arm moves the rear arm upward through the fulcrum rod. At this time, the center of gravity falls on the telescopic rod and moving wheels. The telescopic rod retracts to its lowest value and moves through the moving wheels, making it easy to move the device to the next test point. When the device is placed horizontally, the telescopic rod can extend and retract in real time according to the height of the fulcrum rod without affecting the height adjustment of the fulcrum rod.

[0022] To quickly determine the degree of bending of the entire device;

[0023] As a further improvement to the above technical solution: a laser pointer is provided on the side of the rear arm rod away from the fulcrum rod, and a light target is provided on the side of the forearm rod away from the fulcrum rod, with the laser pointer and the light target located on the same side.

[0024] The beneficial effects of this improvement are as follows: When the Beckman beam is in use, due to improper transportation and use, the two ends of the beam may be bent or skewed, requiring manual intervention to straighten the beam. At this time, by shining a laser pointer onto the light target, the degree of bending of the entire device can be quickly determined, facilitating rapid intervention and adjustment.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the connection structure of the fulcrum rod in this utility model;

[0029] Figure 4 This is a schematic diagram of the forearm rod in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the rear boom in this utility model;

[0031] In the diagram: 1. Pivot rod; 2. Support block; 3. Connecting block; 4. Support; 5. Bolt; 6. Base; 7. Front arm rod; 8. Rear arm rod; 9. Front arm groove; 10. Rear arm groove; 11. Connecting hole one; 12. Connecting hole two; 13. Connecting hole three; 14. Connecting hole four; 15. U-bolt; 16. Probe rod; 17. Upright rod; 18. Round seat; 19. Gauge holder rod; 20. Rod clamp; 21. Dial indicator; 22. Fixing block; 23. Telescopic rod; 24. Moving wheel; 25. Through groove; 26. Level bubble meter; 27. Laser pointer; 28. Light target. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] like Figure 1 — Figure 5As shown: A deflection testing device for roadbed and pavement widening includes a fulcrum rod 1, a support block 2 disposed on the lower side of the fulcrum rod 1, a connecting block 3 rotatably disposed on the lower side of the support block 2, a support 4 disposed on the lower side of the connecting block 3, a front arm 7 disposed at one end of the fulcrum rod 1, and a rear arm 8 disposed at the end of the fulcrum rod 1 away from the front arm 7. A front arm groove 9 is formed through the upper side of the front arm 7 near the fulcrum rod 1, through which the fulcrum rod 1 is inserted into the front arm 7. A rear arm groove 10 is formed through the upper side of the rear arm 8 near the fulcrum rod 1, through which the fulcrum rod 1 is inserted into the rear arm 8. The two ends of the fulcrum rod 1... Both ends are provided with end holes arranged vertically. The side of the fulcrum rod 1 has connecting holes 11 and 12 arranged vertically on both sides of the support block 2. Connecting hole 11 is located on the side of the support block 2 near the rear arm rod 8. The side of the forearm groove 9 has connecting holes 14 and 5 corresponding to connecting hole 212 and the end hole, respectively. The side of the rear arm groove 10 has connecting holes 13 and 6 corresponding to connecting hole 11 and the end hole, respectively. U-bolts 15 are fixed between both sides of the fulcrum rod 1 and the forearm rod 7 and rear arm rod 8. A round seat 18 is provided on the lower side of the end of the forearm rod 7 away from the fulcrum rod 1. This device can be used at 5.4 meters and 3 meters.The length can be freely switched between 6 meters by sliding the two ends of the fulcrum rod 1 within the front arm groove 9 and rear arm groove 10, and is fixed by U-bolts 15. The switching is convenient and simple, thus realizing the ability to freely adjust the adaptable length according to different roadbed and pavement inspections, eliminating the need to carry two different specifications of devices, and providing convenience for inspections of different roadbeds and pavements. The upper triangular part of the support 4 is threaded with bolts 5, and the bolts 5 pass through the support 4 to the lower threaded foot 6. Tightening the bolts 5 at different angles is used to adjust the level of the support 4. A level bubble meter 26 is installed on the upper side of the fulcrum rod 1 directly above the support block 2. For real-time horizontal reference, the rear arm 8 of the forearm 7 is provided with through grooves 25 on its side to reduce the overall weight of the device. A vertical rod 17 is provided on the upper side of the rear arm 8 away from the fulcrum rod 1, and a circular seat 18 is provided at the upper end of the vertical rod 17. A dial indicator rod 19 is provided on the side of the rear arm 8 away from the fulcrum rod 1, and a rod clamp 20 is provided on the upper side of the dial indicator rod 19. A dial indicator 21 is provided on one side of the rod clamp 20, with the output end of the dial indicator 21 facing downwards and contacting the upper side of the circular seat 18. The dial indicator 21 is positioned to contact the circular seat 18 to measure real-time data during testing. A fixed block 22 is provided on the lower side of the end of rod 8 away from the fulcrum rod 1. A telescopic rod 23 is rotatably mounted on the lower side of the fixed block 22. Moving wheels 24 are symmetrically arranged on both sides of the lower end of the telescopic rod 23. When one test point is tested, it is generally necessary to move to the next test point. Currently, the Beckman beam usually requires two people to lift, which is quite cumbersome. With the moving wheels 24 and the telescopic rod 23, the front arm rod 7 can be lifted directly. The front arm rod 7 drives the rear arm rod 8 to move upward through the fulcrum rod 1. At this time, the center of gravity falls on the telescopic rod 23 and the moving wheels 24. The telescopic rod 23 retracts to its lowest value and moves through the moving wheels 24, making it easier to move the device to the next test point. When the device is placed horizontally, the telescopic rod 23 can extend and retract in real time according to the height of the fulcrum rod 1 without affecting the height adjustment of the fulcrum rod 1. A laser pointer 27 is installed on the side of the rear arm rod 8 away from the fulcrum rod 1, and a light target 28 is installed on the side of the forearm rod 7 away from the fulcrum rod 1. The laser pointer 27 and the light target 28 are located on the same side. During use, due to improper transportation or use, the two ends of the Beckman beam may bend or deviate, requiring manual intervention to straighten the beam. In this case, by irradiating the light target 28 with the laser pointer 27, the overall degree of bending of the device can be quickly determined, facilitating rapid intervention and adjustment.

[0034] Working principle and usage process of this utility model:

[0035] In use, when the two end holes of the fulcrum rod 1 are fixedly connected to the connecting holes five and six respectively using U-bolts 15, it is only necessary to satisfy that the length from the upper midpoint of the support block 2 to the end of the forearm rod 7 furthest from the fulcrum rod 1 is 3.6 meters, and the length from the upper midpoint of the support block 2 to the end of the rear arm rod 8 furthest from the fulcrum rod 1 is 1.8 meters. At this time, the total length of the device is 5.4 meters. When the two end holes of the fulcrum rod 1 are fixedly connected to the connecting holes three 13 and four 14 respectively using U-bolts 15, it is only necessary to satisfy that the length from the upper midpoint of the support block 2 to the end of the forearm rod 7 furthest from the fulcrum rod 1 is 1.8 meters. The length of the end is 2.4 meters, and the length from the upper midpoint of the support block 2 to the end of the rear arm 8 away from the support rod 1 is 1.2 meters. At this point, the total length of the device is 3.6 meters. Therefore, this device can freely switch between 5.4 meters and 3.6 meters. The length is changed by sliding the two ends of the support rod 1 within the front arm groove 9 and the rear arm groove 10, and is fixed by U-bolts 15. Switching is convenient and simple, thus enabling free adjustment of the adaptable length according to different roadbed and pavement inspection needs. There is no need to carry two different specifications of devices, providing convenience for different roadbed and pavement inspections. Furthermore, during use, tightening... Bolts 5 at different angles are used to adjust the level of support 4. A bubble level 26 is installed for real-time level reference. Additionally, a dial indicator 21 contacts the circular base 18 during use to measure real-time data. A through slot 25 is provided to reduce the overall weight of the device. Furthermore, when testing one test point, it is generally necessary to move to the next test point. Currently, the Beckman beam typically requires two people to lift, which is cumbersome. Moving wheels 24 and a telescopic rod 23 are installed to directly lift the front arm 7. The front arm 7, via the fulcrum rod 1, drives the rear arm 8 upwards. At this point, the weight... The center rests on the telescopic rod 23 and the moving wheel 24. The telescopic rod 23 retracts to its lowest value and moves via the moving wheel 24, facilitating the movement of the device to the next measuring point. When the device is placed horizontally, the telescopic rod 23 can extend and retract in real time according to the height of the fulcrum rod 1 without affecting the height adjustment of the fulcrum rod 1. In addition, during use, the two ends of the Beckman beam may be bent or skewed due to improper transportation or use, requiring manual intervention to straighten the beam. At this time, by illuminating the laser with the laser pointer 27 onto the light target 28, the degree of bending of the entire device can be quickly determined, facilitating rapid intervention and adjustment.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A deflection testing device for roadbed and pavement widening, characterized in that: The system includes a fulcrum rod (1), a support block (2) on the lower side of the fulcrum rod (1), a connecting block (3) rotatably mounted on the lower side of the support block (2), a support (4) on the lower side of the connecting block (3), a forearm rod (7) at one end of the fulcrum rod (1), and a rear arm rod (8) at the end of the fulcrum rod (1) away from the forearm rod (7). A forearm groove (9) is formed through the upper side of the forearm rod (7) near the fulcrum rod (1), and the fulcrum rod (1) is inserted into the forearm rod (7) through the forearm groove (9). A rear arm groove (10) is formed through the upper side of the rear arm rod (8) near the fulcrum rod (1), and the fulcrum rod (1) is inserted into the rear arm rod (8) through the rear arm groove (10). Both ends of the support rod (1) are provided with end holes arranged vertically. The side of the support rod (1) is provided with connecting hole 1 (11) and connecting hole 2 (12) arranged vertically on both sides of the support block (2). Connecting hole 1 (11) is located on the side of the support block (2) near the rear arm rod (8). The side of the forearm groove (9) is provided with connecting hole 4 (14) and connecting hole 5 corresponding to connecting hole 2 (12) and end hole respectively. The side of the rear arm groove (10) is provided with connecting hole 3 (13) and connecting hole 6 corresponding to connecting hole 1 (11) and end hole respectively. U-bolts (15) are fixed between both sides of the support rod (1) and the forearm rod (7) and rear arm rod (8). A round seat (18) is provided on the lower side of the end of the forearm rod (7) away from the support rod (1).

2. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: The upper triangular part of the support (4) is threaded with bolts (5), and the bolts (5) pass through the support (4) to the lower threaded part of the base (6).

3. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: A horizontal bubble meter (26) is provided on the upper side of the fulcrum rod (1) directly above the support block (2).

4. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: The front arm (7) and the rear arm (8) are both provided with through grooves (25).

5. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: A vertical rod (17) is provided on the upper side of the end of the rear arm (8) away from the fulcrum rod (1). A round seat (18) is provided on the upper end of the vertical rod (17). A dial indicator rod (19) is provided on the side of the rear arm (8) away from the fulcrum rod (1). A rod clamp (20) is provided on the upper side of the dial indicator rod (19). A dial indicator (21) is provided on one side of the rod clamp (20). The output end of the dial indicator (21) faces downward and contacts the upper side of the round seat (18).

6. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: A fixing block (22) is provided on the lower side of the end of the rear arm (8) away from the fulcrum rod (1). A telescopic rod (23) is rotatably provided on the lower side of the fixing block (22). Moving wheels (24) are symmetrically provided on both sides of the lower end of the telescopic rod (23).

7. The deflection testing device for roadbed and pavement widening according to claim 1, characterized in that: A laser pointer (27) is provided on the side of the rear arm (8) away from the fulcrum (1), and a light target (28) is provided on the side of the forearm (7) away from the fulcrum (1). The laser pointer (27) and the light target (28) are located on the same side.

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