Flatness detection device for municipal road

Abstract

The utility model relates to the technical field of road flatness detection, and discloses a flatness detection device for municipal roads, which comprises a machine body, a sliding plate is slidably connected to the inner wall of the machine body, a laser range finder is fixedly connected to the bottom of the sliding plate, an adjusting mechanism is arranged on the machine body, and a cleaning mechanism is arranged on the sliding plate. The adjusting mechanism comprises a sliding rod, the sliding rod is slidably connected to the inner wall of the top of the machine body, a positioning shaft is fixedly connected to the bottom of the sliding rod, an inclined groove is formed in the top of a sliding plate, a positioning rod penetrates through the inner wall of the machine body and is slidably connected to the inner wall of the machine body, and a limiting block is fixedly connected to the bottom of the positioning rod. According to the utility model, the two groups of sliding plates can be driven to synchronously slide in opposite directions on the inner wall of the machine body through the sliding fit of the sliding rod and the positioning shaft and the chute, so that the distance between the two groups of laser range finders can be flexibly adjusted, the operation is simpler, the use is more convenient, and the road detection efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of road smoothness detection technology, and in particular to a smoothness detection device for municipal roads. Background Technology

[0002] Road surface smoothness refers to the deviation of the longitudinal unevenness of the road surface. Road surface smoothness is an important indicator in road evaluation and road construction acceptance, mainly reflecting the smoothness of the longitudinal profile curve of the road surface.

[0003] A search revealed that Chinese Patent Publication No. CN217499872U discloses a road surface smoothness testing device for municipal roads. This device uses a rotating threaded rod to drive a first crossbar to move. The moving first crossbar drives a guide block to move in a guide groove. The guide block guides the first crossbar, thereby allowing the distance between the two first crossbars to be adjusted according to actual needs.

[0004] The device uses threaded rods to adjust the distance between two crossbars. However, the two crossbars are controlled by two independent sets of threaded rods. When it is necessary to adjust the distance between the two laser sensors during use, it is necessary to rotate the two sets of threaded rods in sequence to adjust the position of the two crossbars. This is not only very troublesome, but also slow, which affects the efficiency of road detection. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a smoothness detection device for municipal roads, which aims to improve the problem of "the laser sensor spacing adjustment being too cumbersome" mentioned in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a municipal road smoothness testing device, comprising a body, a sliding plate slidably connected to the inner wall of the body, a laser rangefinder fixedly connected to the bottom of the sliding plate, an adjustment mechanism provided on the body, a cleaning mechanism provided on the sliding plate, the adjustment mechanism comprising a slide rod slidably connected to the top inner wall of the body, a positioning shaft fixedly connected to the bottom of the slide rod, an inclined groove opened on the top of the sliding plate, a positioning rod penetrating and slidably connected to the inner wall of the body, a limit block fixedly connected to the bottom of the positioning rod, a positioning plate fixedly connected to the top of the positioning rod, a rubber pad fixedly connected to the upper surface of the positioning plate, and a spring fixedly connected to the top of the limit block.

[0007] As a further description of the above technical solution:

[0008] The top of the skateboard is slidably connected to a slider, the top of the slider is fixedly connected to a pointer, and the top of the slider is fixedly connected to a scale.

[0009] As a further description of the above technical solution:

[0010] The cleaning mechanism includes a sliding frame that is slidably connected to the bottom of the slide plate, and a cleaning cloth is fixedly connected to the inner wall of the sliding frame.

[0011] As a further description of the above technical solution:

[0012] An inclined frame is fixedly connected to the outer wall of the sliding frame, and an L-rod is fixedly connected to the side wall of the limiting block. The outer wall of the L-rod is attached to the inner wall of the inclined frame.

[0013] As a further description of the above technical solution:

[0014] The end of the spring furthest from the limiting block is fixedly connected to the bottom of the machine body.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the positioning shaft is attached to the inner wall of the inclined groove.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the slider is attached to the outer walls on both sides of the slider rod.

[0019] As a further description of the above technical solution:

[0020] The rubber pad is interference-fitted with the bottom of the slide bar.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the sliding of the slide bar, in conjunction with the positioning shaft and the inclined groove, can drive the two sets of slide plates to slide synchronously in opposite directions on the inner wall of the machine body, thereby flexibly adjusting the distance between the two sets of laser rangefinders. This makes operation simpler, use more convenient, and greatly improves the efficiency of road detection.

[0023] 2. In this utility model, the sliding frame, in conjunction with the cleaning cloth, can clean the dust on the bottom of the laser rangefinder, preventing dust from the road from adhering to the surface of the laser rangefinder and affecting the measurement data of the laser rangefinder. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a bottom view of the structure of the body of this utility model;

[0026] Figure 3 This is a partial cross-sectional structural diagram of the body of this utility model;

[0027] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0028] Legend:

[0029] 1. Body; 2. Slide plate; 3. Laser rangefinder; 4. Adjustment mechanism; 41. Slide bar; 42. Positioning shaft; 43. Inclined groove; 44. Positioning rod; 45. Limit block; 46. Positioning plate; 47. Rubber pad; 48. Spring; 49. Slider; 410. Pointer; 411. Ruler; 5. Cleaning mechanism; 51. Slide frame; 52. Cleaning cloth; 53. Inclined frame; 54. L-bar. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a municipal road smoothness testing device, comprising a body 1, a sliding plate 2 slidably connected to the inner wall of the body 1, and a laser rangefinder 3 fixedly connected to the bottom of the sliding plate 2. The distance between two sets of laser rangefinders 3 can be freely adjusted by sliding the sliding plate 2. An adjustment mechanism 4 is provided on the body 1, and a cleaning mechanism 5 is provided on the sliding plate 2. The adjustment mechanism 4 includes a sliding rod 41, which is slidably connected to the top inner wall of the body 1. A positioning shaft 42 is fixedly connected to the bottom of the sliding rod 41. The outer wall of the positioning shaft 42 is attached to the inner wall of the inclined groove 43. The top of the sliding plate 2 has an inclined groove 43. When the sliding rod 41 slides, it cooperates with the positioning shaft 42 and the inclined groove 43 to drive the two sets of sliding plates 2 to slide synchronously in opposite directions on the inner wall of the body 1. A positioning rod 44 is slidably connected through the inner wall of the body 1. The bottom of the positioning rod 44 is fixedly connected to the inner wall of the body 1. A limiting block 45 is fixedly connected to the top of the positioning rod 44, and a positioning plate 46 is fixedly connected to the top of the positioning rod 44. The positioning rod 44 is pulled down by the limiting block 45, which stretches the spring 48 and causes the positioning rod 44 to slide down the inner wall of the machine body 1. A rubber pad 47 is fixedly connected to the upper surface of the positioning plate 46. The rubber pad 47 is interference-fitted with the bottom of the slide rod 41. The upward movement of the positioning plate 46 can cause the rubber pad 47 to be tightly attached to the bottom of the slide rod 41. The friction of the rubber pad 47 can limit the slide rod 41. A spring 48 is fixedly connected to the top of the limiting block 45. The end of the spring 48 away from the limiting block 45 is fixedly connected to the bottom of the machine body 1. The elasticity of the spring 48 can pull the limiting block 45 upward, which pushes the positioning rod 44 upward. At this time, the positioning rod 44 will cause the positioning plate 46 to move upward on the inner wall of the machine body 1.

[0032] Reference Figure 1 and Figure 3 The top of the slide plate 2 is slidably connected to a slider 49. The inner wall of the slider 49 is attached to the outer walls of both sides of the slide rod 41. When the two sets of slide plates 2 slide synchronously in opposite directions, they will drive the slider 49 to move synchronously. The top of the slider 49 is fixedly connected to a pointer 410, and the top of the slide rod 41 is fixedly connected to a scale 411. By moving the slider 49 in conjunction with the pointer 410 and the scale 411, the accurate distance between the two sets of slide plates 2 can be determined, so as to make precise adjustments to the two sets of laser rangefinders 3.

[0033] Reference Figure 2 - Figure 4The cleaning mechanism 5 includes a sliding frame 51, which is slidably connected to the bottom of the slide plate 2. A cleaning cloth 52 is fixedly connected to the inner wall of the sliding frame 51. During the sliding process, the sliding frame 51 will drive the cleaning cloth 52 to move synchronously. The movement of the cleaning cloth 52 can clean the bottom of the laser rangefinder 3 and prevent dust on the road from adhering to the surface of the laser rangefinder 3 and affecting the measurement data of the laser rangefinder 3. An inclined frame 53 is fixedly connected to the outer wall of the sliding frame 51. An L-rod 54 is fixedly connected to the side wall of the limiting block 45. The outer wall of the L-rod 54 is attached to the inner wall of the inclined frame 53. When the limiting block 45 moves, it can drive the sliding frame 51 to slide at the bottom of the slide plate 2 in conjunction with the L-rod 54 and the inclined frame 53.

[0034] Working principle: In use, the positioning rod 44 is first pulled downward by the limiting block 45, which stretches the spring 48 and causes the positioning rod 44 to slide downward on the inner wall of the body 1. Simultaneously, the positioning rod 44 slides downward, causing the positioning plate 46 to move downward synchronously. This allows the rubber pad 47 on the top of the positioning plate 46 to separate from the bottom of the slide rod 41. At this point, the slide rod 41 can be pushed to slide on the top of the body 1. As the slide rod 41 slides, it causes the positioning shaft 42 to move against the inner wall of the inclined groove 43. Simultaneously, the positioning shaft 42 pushes the inclined groove 43, causing the two sets of sliding plates 2 to slide synchronously in opposite directions on the inner wall of the body 1. This, in turn, drives the two sets of laser rangefinders 3. The two laser rangefinders 3 can be moved synchronously in opposite directions, allowing for free adjustment of the distance between them. After adjustment, the limiting block 45 is released, and the spring 48 pulls the limiting block 45 upward, causing it to push the positioning rod 44 upward. The positioning rod 44 then moves the positioning plate 46 upward on the inner wall of the body 1. The upward movement of the positioning plate 46 causes the rubber pad 47 to press tightly against the bottom of the slide rod 41. The friction of the rubber pad 47 limits the slide rod 41. Simultaneously, the positioning shaft 42 and the inclined groove 43 limit the slide plate 2, thus limiting the adjusted laser rangefinder 3 and preventing displacement during use.

[0035] As the two sets of sliding plates 2 slide synchronously in opposite directions, they will cause the slider 49 to move synchronously. As the slider 49 moves, it will cause the pointer 410 to move synchronously. As the pointer 410 moves, it can be used with the scale 411 to know the accurate distance between the two sets of sliding plates 2, so as to make precise adjustments to the two sets of laser rangefinders 3.

[0036] When the limiting block 45 is pushed down, the limiting block 45 will cause the L rod 54 to move against the inner wall of the inclined frame 53. At the same time, the L rod 54 will push the inclined frame 53, causing the inclined frame 53 to push the sliding frame 51. At this time, the sliding frame 51 will slide at the bottom of the slide plate 2. During the sliding process, the cleaning cloth 52 will move synchronously. When the cleaning cloth 52 touches the laser rangefinder 3 during its movement, it can clean the bottom of the laser rangefinder 3 to prevent dust on the road from adhering to the surface of the laser rangefinder 3 and affecting the measurement data of the laser rangefinder 3.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smoothness testing device for municipal roads, comprising a body (1), characterized in that: The inner wall of the body (1) is slidably connected to a slide plate (2), and a laser rangefinder (3) is fixedly connected to the bottom of the slide plate (2). An adjustment mechanism (4) is provided on the body (1), and a cleaning mechanism (5) is provided on the slide plate (2). The adjustment mechanism (4) includes a slide rod (41), which is slidably connected to the top inner wall of the body (1). A positioning shaft (42) is fixedly connected to the bottom of the slide rod (41). A slanted groove (43) is opened on the top of the slide plate (2). A positioning rod (44) is slidably connected through the inner wall of the body (1). A limit block (45) is fixedly connected to the bottom of the positioning rod (44). A positioning plate (46) is fixedly connected to the top of the positioning rod (44). A rubber pad (47) is fixedly connected to the upper surface of the positioning plate (46). A spring (48) is fixedly connected to the top of the limit block (45).

2. The municipal road smoothness testing device according to claim 1, characterized in that: The top of the slide plate (2) is slidably connected to a slider (49), the top of the slider (49) is fixedly connected to a pointer (410), and the top of the slide bar (41) is fixedly connected to a scale (411).

3. The municipal road smoothness testing device according to claim 1, characterized in that: The cleaning mechanism (5) includes a sliding frame (51) which is slidably connected to the bottom of the slide plate (2), and a cleaning cloth (52) is fixedly connected to the inner wall of the sliding frame (51).

4. The municipal road smoothness testing device according to claim 3, characterized in that: The outer wall of the sliding frame (51) is fixedly connected to the inclined frame (53), and the side wall of the limiting block (45) is fixedly connected to the L rod (54). The outer wall of the L rod (54) is attached to the inner wall of the inclined frame (53).

5. The municipal road smoothness testing device according to claim 1, characterized in that: The end of the spring (48) away from the limiting block (45) is fixedly connected to the bottom of the body (1).

6. The municipal road smoothness testing device according to claim 1, characterized in that: The outer wall of the positioning shaft (42) is attached to the inner wall of the inclined groove (43).

7. The municipal road smoothness testing device according to claim 2, characterized in that: The inner wall of the slider (49) is attached to the outer walls on both sides of the slider (41).

8. The municipal road smoothness testing device according to claim 1, characterized in that: The rubber pad (47) is interference-fitted with the bottom of the slide bar (41).

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