Device for quickly and accurately positioning cold joint of asphalt pavement

Abstract

The utility model relates to the technical field of engineering roadbed and pavement field detection, in particular to a device for quickly and accurately positioning a cold joint of an asphalt pavement, which comprises a component main body, a leveling bubble on the component main body, a connecting block detachably mounted at the front end of the component main body, and leveling devices mounted at the front end and the rear end of the connecting block, a filler gauge is slidably connected to the lower side of the rear end of the component body, the leveling device is adjusted, the position, in the leveling bubble distance, where the device is attached to the road surface and the sliding filler gauge makes contact with the road surface is the cold joint lap joint position, the detection device is simple in structure and convenient to operate, the blank of a positioning method for the cold joint lap joint position is filled, and the detection accuracy is improved. The uncertainty and errors of a traditional method are avoided, the position of the asphalt pavement cold joint can be rapidly and accurately positioned, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of on-site detection of engineering roadbed and pavement, in particular to a device for quickly and accurately locating cold joints of asphalt pavement. Background Art

[0002] Asphalt pavement joints are an important factor affecting the smoothness and are also the weak link of asphalt pavements, which can easily cause structural defects. During construction, due to external factors, the temperature of the asphalt mixture that has not been rolled behind the paver has dropped to the point where it can no longer be rolled to the required compaction degree, and the joints that must be set up make transverse cold joints inevitable. Cold joints refer to the existing asphalt concrete pavement that has been formed and cooled, and the newly paved high-temperature asphalt mixture must overlap and form a whole. Due to differences in many indicators such as density, plasticity, and temperature, the two pavements cannot form a good whole, and cracks, water leakage and other diseases are prone to occur at the joints, which may affect future driving comfort, safety, and pavement service life. Longitudinal cold joints are more likely to have problems due to the long overlap length and are more difficult to handle.

[0003] At present, there is no unified standard for determining the overlap position of the transverse cold joint of asphalt pavement. In engineering, a ruler is usually used to measure the insufficient thickness of the previously laid asphalt pavement, and the insufficient thickness is planed off. However, the method of using a ruler to measure the thickness of the previously laid asphalt pavement is complicated in the measurement process and the variability of the repeated measurement results is large, which makes it difficult to use it on a large scale in engineering. Therefore, the utility model proposes a device for quickly and accurately locating the cold joint of asphalt pavement to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a device for quickly and accurately locating cold joints of asphalt pavement, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for quickly and accurately locating cold joints of asphalt pavement, comprising: a component body, a level bubble on the component body, a connecting block detachably installed at the front end of the component body, a leveling device installed at both the front and rear ends of the connecting block, and a feeler gauge slidably connected to the lower side of the rear end of the component body.

[0006] Preferably, a connecting head is fixedly installed at the front end of the component body, and a threaded hole 1 is opened at the front end of the connecting head.

[0007] Preferably, a connecting cavity is formed at one end of the connecting block, and a connecting hole is formed at the other end, the connecting hole and the connecting cavity are communicated, and one end of the connecting head is inserted into the connecting cavity and fixedly connected by bolts.

[0008] Preferably, a slide groove is provided at the lower end of the component body, and the slide groove is convex.

[0009] Preferably, a slider is fixedly installed at the upper end of the feeler gauge. The slider is convex, and the upper end of the slider is slidably inserted into the chute.

[0010] Preferably, the leveling device includes a second threaded hole and a threaded rod. Two second threaded holes are respectively provided on the side walls of the front and rear ends of the connecting block, and a threaded rod is threadedly connected in each second threaded hole.

[0011] Preferably, a turntable is fixedly installed at the upper end of the threaded rod. After the lower end passes through the second threaded hole, it is threadedly connected with a threaded cylinder, and a base is fixedly installed at the lower end of the threaded cylinder.

[0012] Preferably, a bearing is fixedly installed at the lower end of the threaded rod. The inner end of the bearing is fixedly installed with a rotating rod, the lower end of the rotating rod is fixedly installed with a connecting piece, and the lower end of the connecting piece is fixedly installed with a spring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] By adjusting the leveling device, the spirit level bubble is centered, and the device is in complete contact with the road surface. The position where the sliding feeler gauge contacts the road surface is the cold joint lap position. The detection device has a simple structure and is easy to operate. It not only makes up for the blank of the positioning method for the cold joint lap position, avoids the uncertainty and error of the traditional method, can quickly and accurately locate the position of the cold joint of the asphalt pavement, but also greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of the overall structure of the present utility model;

[0016] Figure 2 is an exploded view of the overall structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the main body of the component and the connecting block structure of the present utility model;

[0018] Figure 4 is a schematic diagram of the threaded rod and the threaded cylinder structure of the present utility model.

[0019] In the figure: 1, main body of the component; 2, spirit level bubble; 3, connecting head; 4, chute; 5, first threaded hole; 6, feeler gauge; 7, slider; 8, connecting block; 9, connecting cavity; 10, connecting hole; 11, second threaded hole; 12, threaded rod; 13, turntable; 14, threaded cylinder; 15, base; 16, bearing; 17, rotating rod; 18, connecting piece; 19, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] For the sake of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0024] Please refer to Figures 1 to 4, the utility model provides a technical solution: a device for quickly and accurately positioning cold joints of asphalt pavement, including: a component main body 1, on which there is a spirit level bubble 2, a connecting block 8 is detachably installed at the front end of the component main body 1, a connecting head 3 is fixedly installed at the front end of the component main body 1, a first threaded hole 5 is opened at the front end of the connecting head 3, a connecting cavity 9 is opened at one end of the connecting block 8, a connecting hole 10 is opened at the other end, the connecting hole 10 communicates with the connecting cavity 9, one end of the connecting head 3 is inserted into the connecting cavity 9, the first threaded hole 5 communicates with the connecting hole 10, then one end of a bolt is passed through the connecting hole 10 and threadedly connected with the inner wall of the first threaded hole 5, and the other end of the bolt is flush with the outer end of the connecting hole 10, so as to fix the connecting block 8 at the front end of the component main body 1 and facilitate the disassembly and assembly of the connecting block 8.

[0025] Leveling devices are installed at both the front and rear ends of the connecting block 8. The leveling device includes a second threaded hole 11 and a threaded rod 12. Two second threaded holes 11 are respectively opened on the side walls of the front and rear ends of the connecting block 8. Each second threaded hole 11 is threadedly connected with a threaded rod 12. The upper end of the threaded rod 12 is fixedly installed with a turntable 13, and the lower end passes through the second threaded hole 11 and is threadedly connected with a threaded cylinder 14. The lower end of the threaded cylinder 14 is fixedly installed with a base 15. By holding the turntable 13 and rotating, the threaded rod 12 can be driven to rotate and move up and down in the second threaded hole 11, and the component main body 1 can be leveled. The spirit level bubble 2 on the component main body 1 is used to judge whether the device is leveled, so that the device can be applicable to positioning cold joints of asphalt pavement in various road surface environments.

[0026] A bearing 16 is fixedly installed at the lower end of the threaded rod 12. The outer wall of the bearing 16 is welded to the lower end of the threaded rod 12, and the inner wall of the bearing 16 is fixedly installed with a rotating rod 17. The upper end of the rotating rod 17 is inserted into the inner side wall of the bearing 16 and welded. The rotating rod 17 can rotate inside the bearing 16. The lower end of the rotating rod 17 is fixedly installed with a connecting piece 18, and the lower end of the connecting piece 18 is fixedly installed with a spring 19. The spring 19, the connecting piece 18 and the rotating rod 17 can move at the lower end of the threaded rod 12. When the lower end of the threaded rod 12 is threadedly connected with the inner wall of the threaded cylinder 14, the threaded rod 12 can drive the threaded cylinder 14 and the base 15 to move synchronously. When the base 15 contacts the ground, the threaded rod 12 moves in the threaded cylinder 14 by compressing the spring 19.

[0027] A feeler gauge 6 is slidably connected to the lower side of the rear end of the component main body 1. A chute 4 is opened at the lower end of the component main body 1. The chute 4 is convex. The upper end of the feeler gauge 6 is fixedly installed with a slider 7. The slider 7 is convex. The upper end of the slider 7 is slidably inserted into the chute 4, and the feeler gauge 6 can slide at the lower end of the component main body 1.

[0028] When the device is working, initially visually determine the approximate position of the cold joint on the asphalt pavement. Place the detection device on the cold joint with the approximate position determined, such that the position below the component main body 1 is the cold joint, and place it perpendicular to the direction of the cold joint. Rotate the rotary turntable 13 to adjust the lifting of the threaded rod 12 so that the spirit level bubble 2 on the component main body 1 is centered. At this time, the detection device is in contact with the asphalt pavement. Slide the feeler gauge 6. When there is a sense of obstruction with the feeler gauge 6 and the spirit level bubble 2 fluctuates, it is one side of the construction cold joint; turn the device 180° in the direction horizontal to the road surface and use the above method to determine the other side of the construction cold joint, that is, accurately determine the position and state of the construction cold joint.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for quickly and accurately locating cold joints in asphalt pavement, comprising: The component body (1) has a level bubble (2) on it, and is characterized in that a connecting block (8) is detachably mounted on the front end of the component body (1), and leveling devices are mounted on both the front and rear ends of the connecting block (8), and a feeler gauge (6) is slidably connected to the lower side of the rear end of the component body (1).

2. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 1 is characterized by: A connecting head (3) is fixedly mounted on the front end of the component body (1), and a threaded hole (5) is provided on the front end of the connecting head (3).

3. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 2 is characterized by: A connecting cavity (9) is formed at one end of the connecting block (8), and a connecting hole (10) is formed at the other end; the connecting hole (10) and the connecting cavity (9) are communicated with each other; one end of the connecting head (3) is inserted into the connecting cavity (9) and fixedly connected by bolts.

4. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 1 is characterized in that: A slide groove (4) is provided at the lower end of the component body (1), and the slide groove (4) is convex.

5. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 4 is characterized in that: A slider (7) is fixedly mounted on the upper end of the feeler gauge (6); the slider (7) is convex, and the upper end of the slider (7) is slidably inserted into the slide groove (4).

6. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 1 is characterized by: The leveling device comprises a second threaded hole (11) and a threaded rod (12). The second threaded hole (11) is provided with two threaded holes respectively opened on the side walls at the front and rear ends of the connecting block (8). The threaded rod (12) is threadedly connected in each second threaded hole (11).

7. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 6 is characterized by: A rotating disk (13) is fixedly mounted on the upper end of the threaded rod (12), and a threaded barrel (14) is threadedly connected to the lower end of the threaded barrel (14) after passing through the second threaded hole (11). A base (15) is fixedly mounted on the lower end of the threaded barrel (14).

8. The device for quickly and accurately locating cold joints of asphalt pavement according to claim 7 is characterized by: A bearing (16) is fixedly mounted on the lower end of the threaded rod (12), a rotating rod (17) is fixedly mounted on the inner end of the bearing (16), a connecting piece (18) is fixedly mounted on the lower end of the rotating rod (17), and a spring (19) is fixedly mounted on the lower end of the connecting piece (18).

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