Roadbed flatness detection device
By using a mortise and tenon joint to connect the flatness ruler and the laser measuring equipment, the problems of the 3m ruler being inconvenient to carry and easily broken have been solved, thus improving the portability and accuracy of roadbed flatness testing.
Patent Information
- Application Number
- CN202520125542.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing 3m ruler is too long, inconvenient to carry and easy to break, which affects the accuracy of the test.
It uses multiple flatness gauges connected by mortise and tenon joints, combined with laser measuring equipment, to achieve line detection of changes in roadbed surface height. The structure is compact, strong, and not easily bent.
It improves the portability and accuracy of roadbed smoothness detection, and can intuitively observe the smoothness line of the roadbed surface within a 3m range. It is suitable for the detection of structures with poor smoothness.
Smart Images
Figure CN223723554U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of roadbed flatness detection, and particularly relates to a roadbed flatness detection device. BACKGROUND
[0002] According to the "Highway Engineering Quality Inspection and Evaluation Standard", the structures such as highway roadbed, cement concrete bridge deck pavement, cement concrete base, and cement stabilized macadam base need to use 3m ruler to detect the flatness index, and the structures such as cement concrete surface need to use 3m ruler to detect the flatness index. The 3m ruler is too long to be inconvenient to carry, and is easy to be broken and deformed during use, thereby affecting the detection precision.
[0003] Therefore, it is necessary to provide a novel roadbed flatness detection device to solve the above technical problems. SUMMARY
[0004] The utility model embodiment aims at providing a roadbed flatness detection device, which realizes the detection of the height change of roadbed surface in a range of 3m through the flatness ruler body connected by multiple mortise and tenon structures, is simple and compact in structure, is convenient to carry, and is high in structural strength and not easy to be bent and deformed, thereby solving at least one technical problem in the background art.
[0005] In order to solve the above technical problems, the utility model is implemented as follows:
[0006] The utility model embodiment provides a roadbed flatness detection device, which comprises a detection column, a laser measuring device, a support, and at least two flatness ruler bodies connected by mortise and tenon structures, the flatness ruler body is provided with multiple rectangular holes in the length direction, the detection column is arranged in the rectangular hole and can slide up and down in the rectangular hole, the support is fixed on the flatness ruler body, the laser measuring device is fixed on the support, one end surface of the flatness ruler body is provided with a tenon, the other end surface is provided with a mortise groove, and the two flatness ruler bodies are connected through the tenon and the mortise groove.
[0007] Optionally, the upper surfaces of the two ends of the flatness ruler body are respectively provided with screw holes, and the support is fixed on the flatness ruler body through cooperation of the screw holes and screws.
[0008] Optionally, the length of the flatness ruler body is one meter.
[0009] Optionally, the roadbed flatness detection device comprises three flatness ruler bodies connected by mortise and tenon structures.
[0010] Optionally, the laser measuring device comprises a laser emitting device and a laser receiving device cooperating with the laser emitting device, and the laser emitting device and the laser receiving device are arranged on two spaced-apart supports on the flatness ruler body.
[0011] Optionally, the upper end of the detection column is fixed with a limiting block through a screw, and the lower end of the detection column is provided with a limiting protrusion.
[0012] The embodiment of the utility model has the advantages that:
[0013] 1. The flatness ruler body connected by the mortise and tenon structures is used to detect the height change of the roadbed surface within 3m, which is simple, compact, convenient to carry and high in structural strength and not easy to bend and deform.
[0014] 2. The roadbed and pavement flatness detection is changed from point detection to line detection, and the different detection columns are pushed out to different heights due to the different gap heights between the detection surface and the flatness ruler body, so that the flatness line of the detection surface such as the roadbed and pavement within 3m can be observed and recorded, the distribution of different gaps within 3m can be understood, and qualitative analysis can be performed.
[0015] 3. The detection range is large, and the structure with poor flatness can be detected, and the detection column is pushed up to a high height due to the small gap height of the conventional structure detection surface, so that the detection column is not concentrated on the top of the flatness ruler, the moving range of the laser signal from bottom to top to search for the lowest detection column lower edge is increased, and the observation and operation are facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor, and the drawings comprise:
[0017] Figure 1 The overall front view structural schematic diagram of the roadbed flatness detection device provided by the utility model is shown in the figure.
[0018] Figure 2 The top view structural schematic diagram of the flatness ruler body provided by the utility model is shown in the figure.
[0019] Figure 3 The front view structural schematic diagram of the laser emitting device provided by the utility model is shown in the figure.
[0020] Figure 4 The utility model provides a top structure schematic diagram of laser emission slider is provided.
[0021] Figure 5 The utility model provides a front view structure schematic diagram of laser receiving device is provided. Specific embodiments
[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] The terms "first", "second" and the like in the description and claims of the utility model are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the utility model can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" and the like are usually a kind and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.
[0024] Please refer to Figure 1 And Figure 2 The utility model embodiment provides a kind of roadbed flatness detection device, including detection column 1, support 2, laser measuring equipment and at least two flatness ruler bodies 5 connected by mortise and tenon structure.
[0025] The flatness ruler body 5 is provided with a plurality of rectangular holes 51 along its length direction, and the upper surfaces of the two ends of the flatness ruler body 5 are respectively provided with screw holes 52. The detection column 1 is arranged in the rectangular hole 51 and can slide up and down along the rectangular hole 51.
[0026] It should be noted that the cross section of the detection column 1 is consistent with the shape of the rectangular hole 51.
[0027] Further, the upper end of the detection column 1 is fixed with a limit block 11 by a screw, and the lower end of the detection column 1 is provided with a limit protrusion 12. In this way, the detection column 1 will not slide out of the rectangular hole 51.
[0028] The support 2 is fixed on the flatness ruler body 5 by cooperating with the screw hole 52 through a screw (not shown).
[0029] The laser measuring device is fixed on the support 2, and the laser measuring device comprises a laser emitting device 3 and a laser receiving device 4 matched with the laser emitting device 3, and the laser emitting device 3 and the laser receiving device 4 are arranged on two spaced-apart supports 2 on the flatness ruler body 5.
[0030] In another specific embodiment Figure 3 And Figure 4 As shown in the figure, the laser emitting device 3 is fixed on the top surface of one end of the flatness ruler body 5, and the laser emitting device 3 is provided with a sliding groove 301, and a laser emitting slider 302 is arranged in the sliding groove 301, and a laser emitting head 303, a button cell 304 and a transmitting switch 305 are arranged inside the laser emitting slider 302, a manual push-pull rod 306 and a scale pointer 307 are arranged on the side surface, and a fastening screw 308 is arranged on the rear part, the laser emitting head 303 is arranged on the bottom of the laser emitting slider 302, and scale rulers 309 are arranged on the two side surfaces of the laser emitting platform 3, the scale rulers 309 have a precision of 1mm and a range of 50mm.
[0031] In another specific embodiment Figure 5 As shown in the figure, the laser receiving device 4 is opposite to the laser emitting device 3 in position, and has a laser receiving plate 401 on the surface, and a buzzer 402, a button cell and an integrated circuit board 403 are arranged inside, and the laser receiving plate 401 is opposite to the laser emitting head 303 of the laser emitting device 3 in direction and position.
[0032] One end of the flatness ruler body 5 is provided with a mortise 53, and the other end is provided with a tenon groove 54, and two connected flatness ruler bodies 5 are connected through the mortise 53 and the tenon groove 54.
[0033] In one specific embodiment, the length of the flatness ruler body 5 is one meter. The roadbed flatness detection device comprises three flatness ruler bodies 5 connected through the mortise and tenon structure, so that a flatness ruler with a length of 3 meters can be combined, and the change of the surface height of the roadbed within a range of 3m can be detected. In addition, since the flatness ruler bodies 5 are connected through the mortise and tenon structure, the structure has high strength, and the rulers are not easy to bend and break.
[0034] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.
[0035] Furthermore, it is noted that the scope of the methods and systems of the embodiments of the present application are not limited to the performance of the functions described or illustrated in the order described or illustrated, nor are the embodiments of the present application limited to performing all or only a portion of such actions, or performing such actions in the order written. Further, having described certain examples, various changes, substitutions, and alterations can occur to one of ordinary skill in the art without departing from the spirit and scope of the present application, as defined by the appended claims.
[0036] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative, rather than limiting, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope of the claims, and all belong to the protection of the present application.
Claims
1. A device for detecting the flatness of a roadbed, characterized by The device comprises a detection column, a laser measuring device, a support and at least two flatness rulers connected by a mortise and tenon structure, the flatness rulers are provided with a plurality of rectangular holes through the length direction, the detection column is arranged in the rectangular hole and can slide up and down, the support is fixed on the flatness ruler, the laser measuring device is fixed on the support, one end of the flatness ruler is provided with a mortise, the other end is provided with a tenon slot, and the two flatness rulers are connected by the mortise and the tenon slot.
2. The subgrade flatness detection device of claim 1, wherein, The upper surface of the flatness ruler is provided with a screw hole, and the support is fixed on the flatness ruler by screwing.
3. The sub-grade flatness detection device of claim 1, wherein, The length of the flatness ruler is one meter.
4. The subgrade flatness detection device of claim 3, wherein, The device comprises three flatness rulers connected by a mortise and tenon structure.
5. The sub-grade flatness detection device of claim 4, wherein, The laser measuring device comprises a laser emitting device and a laser receiving device matched with the laser emitting device, and the laser emitting device and the laser receiving device are arranged on two spaced supports on the flatness ruler.
6. The sub-grade flatness detection device of claim 5, wherein, The upper end of the detection column is fixed with a limiting block by a screw, and the lower end of the detection column is provided with a limiting protrusion.