Municipal road crack detection device

Abstract

The utility model discloses a municipal road crack detection device which comprises a pair of sliding rods which are arranged in parallel, and the end parts of the two sliding rods are respectively connected into a whole through a horizontally arranged connecting plate; a mounting plate is horizontally arranged in the middle of the two sliding rods, a rotating lead screw with a rotating handle at the upper end is vertically arranged on the mounting plate, and the lower end of the rotating lead screw is connected to the top face of the mounting plate through a bearing seat. The rotating screw rod is sleeved with a lifting sliding sleeve in a matched and screwed mode, a pair of inclined connecting rods are symmetrically hinged to the lifting sliding sleeve, sliding blocks horizontally sliding along the sliding rods are hinged to the inclined lower ends of the two inclined connecting rods, and width measuring heads are vertically arranged on the bottom faces of the two sliding blocks; a penetrating hole is formed in the rotating lead screw along the axis, a depth measuring rod is inserted into the penetrating hole, and the lower end of the depth measuring rod penetrates through the mounting plate to form a measuring end stretching into the crack. The utility model has the advantages that not only can the width and depth measurement of the municipal road crack be easily completed, but also the measurement stability and accuracy can be improved, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road maintenance, in particular to a crack detection device for municipal roads. Background Art

[0002] After a municipal road has been used for a long time, the road surface will be damaged under the influence of vehicles or other factors, and then cracks will occur. At this time, it is necessary to measure the cracks for subsequent repair work. The existing crack detection devices usually consist of width detection and depth detection. By moving two measuring heads horizontally to abut against the inner walls on both sides of the crack, the width of the crack is measured, and by inserting a depth measuring rod into the crack, the depth of the crack is measured. However, when measuring the depth of the crack, the scale lines of the depth measuring rod are located below, resulting in the need for workers to lie prone on the ground to observe the length of the depth measuring rod inserted into the crack, which is very inconvenient to use. Summary of the Invention

[0003] The purpose of the utility model is to provide a crack detection device for municipal roads in view of the defects of the prior art.

[0004] To achieve the above purpose, the utility model can adopt the following technical solutions:

[0005] The crack detection device for municipal roads of the utility model includes a pair of parallel sliding rods, and the ends of the two sliding rods are respectively connected into a whole through a horizontally arranged connecting plate; a mounting plate is horizontally arranged in the middle of the two sliding rods, and a rotating screw rod with a handle at the upper end is vertically arranged on the mounting plate, and the lower end of the rotating screw rod is connected to the top surface of the mounting plate through a bearing seat; a lifting sliding sleeve is fitted and sleeved on the rotating screw rod, and a pair of inclined connecting rods are symmetrically hinged on the lifting sliding sleeve. The inclined lower ends of the two inclined connecting rods are hinged with sliders that slide horizontally along the sliding rods, and width measuring heads are vertically arranged on the bottom surfaces of the two sliders; a through hole is arranged along the axis in the rotating screw rod, and a depth measuring rod is inserted into the through hole, and the lower end of the depth measuring rod passes through the mounting plate to form a measuring end extending into the crack.

[0006] Further, for convenient movement, a pair of traveling wheels are arranged on the connecting plate, and the traveling wheels are detachably installed on the bottom surface of the connecting plate, so that the traveling wheels can be easily removed after moving to the position for subsequent crack measurement work.

[0007] Further, for convenient and intuitive reading of the measured crack width and depth, horizontal scale marks extending from the mounting plate to both sides are arranged on the sliding rods, and vertical scale marks extending from top to bottom are arranged at the upper end of the depth measuring rod. The crack width is accurately read through the corresponding scales of the two sliders on the horizontal scale marks, and the crack depth is accurately read through the change in the scale height of the vertical scale marks above the handle.

[0008] Furthermore, a pressing block located above the rotating handle is provided at the upper end of the depth measuring rod. The size of the pressing block should be at least larger than the upper port of the perforation, so that it can be blocked above the perforation, ensuring that the upper end of the depth measuring rod will not slide into the perforation, avoiding the phenomenon that the depth measuring rod is difficult to be taken out from the perforation. At the same time, the pressing block can also increase the vertical downward gravity of the depth measuring rod, so that the lower end of the depth measuring rod can vertically extend into the deepest part of the crack, ensuring the accurate measurement of the crack depth.

[0009] Furthermore, a positioning sliding groove is provided along the length direction on the hole wall of the perforation, and a limit clamping block that slides up and down along the positioning sliding groove is provided at the upper end of the rod wall of the depth measuring rod. When moving the whole device, it is convenient to avoid the lower end of the depth measuring rod extending out of the mounting plate and affecting the movement of the device through the misaligned clamping of the limit clamping block and the positioning sliding groove.

[0010] The advantages of the present utility model are as follows: By rotating the rotating screw rod, the lifting sliding sleeve is translated downward, so that the inclined connecting rod pushes the slider to slide horizontally along the sliding rod, and then the horizontal opening of the two width measuring heads is realized, easily completing the width measurement of the cracks in the municipal road; The depth measuring rod passing through the perforation vertically extends into the cracks in the municipal road, and then the depth measurement is easily completed according to the height change of the depth measuring rod above the rotating handle; The whole device can not only easily complete the width and depth measurement of the cracks in the municipal road, but also improve the stability and accuracy of the measurement, avoid the staff lying on the ground to observe the width measurement value and depth measurement value of the cracks, and improve the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the structural schematic diagram of the present utility model.

[0012] Figure 2 is Figure 1 the enlarged view of the rotating handle in

[0013] Figure 3 is Figure 1 the enlarged view of the upper end of the depth measuring rod in

[0014] Figure 4 is Figure 1 the enlarged view of the walking wheel in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0016] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0017] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. 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 circumstances.

[0018] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0019] As Figure 1 、 2 shown, the municipal road crack detection device described in the present utility model includes a pair of parallel slide bars 1, and the ends of the two slide bars 1 are respectively connected into one body through a horizontally arranged connecting plate 2. For the convenience of movement, a pair of traveling wheels 3 can also be provided on each connecting plate 2. Since the traveling wheels 3 are only used during movement and are not used when measuring the cracks in the municipal road, the traveling wheels 3 should be detachably installed on the bottom surface of the connecting plate 2; specifically, as Figure 4 shown, two mounting seats 4 are fixed on the bottom surface of each connecting plate 2 through connecting screws, and each traveling wheel 3 corresponds to one mounting seat 4. At this time, a clamping rib 5 is provided on the bottom surface of the mounting seat 4, and a groove 7 adapted to the clamping rib 5 for sliding and clamping is provided on the wheel frame 6 of the traveling wheel 3, so as to facilitate the installation of the traveling wheel 3 by the sliding and clamping of the clamping rib 5 and the groove 7, and facilitate the easy removal of the traveling wheel 3 after moving in place for subsequent crack measurement work.

[0020] A mounting plate 8 is horizontally arranged in the middle of the two sliding rods 1. The bottom surface of the mounting plate 8 should be flush with the lower surface of the clamping rib 5 of the mounting seat 4 on the connecting plate 2, so as to jointly form a measurement reference surface attached to the municipal road surface. A rotating screw rod 9 with a thread on its outer sidewall is vertically arranged at the center of the top surface of the mounting plate 8. The upper end of the rotating screw rod 9 is coaxially provided with a rotating handle 10, and its lower end is connected to the top surface of the mounting plate 8 through a bearing seat 11. Specifically, the outer ring of the bearing seat 11 is fixed on the mounting plate 8, and the rotating screw rod 9 is coaxially inserted and fixed in the inner ring of the bearing seat 11, thus easily realizing the installation of the rotating screw rod 9 on the mounting plate 8 and ensuring that the rotating screw rod 9 rotates along the axis.

[0021] A lifting sliding sleeve 12 is adaptively screwed and sleeved on the rotating screw rod 9. A pair of inclined connecting rods 14 are symmetrically hinged to the outer sidewall of the lifting sliding sleeve 12 through a pair of first hinge ears 13 arranged in pairs. The inclined lower ends of the two inclined connecting rods 14 are respectively hinged with sliders 16 through a pair of second hinge ears 15 arranged in pairs. The hinge shafts at the first hinge ears 13 and the second hinge ears 15 are parallel and horizontally arranged. The two sliders 16 are slidably sleeved on the sliding rods 1. A width measuring head 17 for extending vertically downward into the cracks of the municipal road for measurement is vertically arranged on the bottom surface of the slider 16. Since the lower end of the rotating screw rod 9 is installed on the mounting plate 8, under the pulling and fixing of the two inclined connecting rods 14, the rotation of the rotating screw rod 9 will not cause the lifting sliding sleeve 12 to rotate together, but only cause the lifting sliding sleeve 12 to move up and down along the axis of the rotating screw rod 9. At this time, under the pushing action of the inclined connecting rods 14, the sliders 16 will slide horizontally along the sliding rods 1, so as to realize the horizontal opening of the two width measuring heads 17 and easily complete the measurement of the width of the cracks in the municipal road. In order to conveniently and intuitively read the measured crack width, a horizontal scale mark 18 extending from the mounting plate 8 to both sides should also be set on the sliding rod 1. The distance between the two can be accurately read through the corresponding scales of the two sliders 16 on the horizontal scale mark 18, and then the crack width can be accurately measured.

[0022] In addition, a through hole 19 is axially opened in the rotating screw rod 9 (such as Figure 2As shown in the figure, the upper end of the channel of the perforation 19 extends upward through the rotating handle 10, while the lower end extends downward through the mounting plate 8, thus forming a vertically penetrating channel. At this time, a depth measuring rod 20 is inserted into the perforation 19. The length of the depth measuring rod 20 should be greater than the sum of the heights of the rotating handle 10, the rotating lead screw 9 and the mounting plate 8. Therefore, when the depth measuring rod 20 is inserted into the perforation 19, the upper end of the depth measuring rod 20 can extend out of the rotating handle 10 to form a convenient-to-remove holding end. At the same time, the lower end of the depth measuring rod 20 can also pass through the mounting plate 8 to form a measuring end extending into the crack of the municipal road. To facilitate the intuitive reading of the measured crack depth, longitudinal scale markings 21 extending from top to bottom are also provided at the upper end of the rod wall of the depth measuring rod 20. The length of the depth measuring rod 20 extending into the crack is accurately read through the difference in the scale height of the longitudinal scale markings 21 located above the rotating handle 10, and then the crack depth is accurately measured.

[0023] Furthermore, to increase the vertical downward gravity of the depth measuring rod 20 and facilitate the vertical downward pushing of the depth measuring rod 20, a pressing block 22 located above the rotating handle 10 can also be coaxially provided at the upper end of the depth measuring rod 20. The size of the pressing block 22 should be at least larger than the upper port of the perforation 19, so that it can block above the perforation 19 to ensure that the upper end of the depth measuring rod 20 will not slide into the perforation 19, avoiding the phenomenon that the depth measuring rod 20 is difficult to take out from the perforation 19. At the same time, under the cooperation of the pressing block 22, the vertical downward gravity of the depth measuring rod 20 can also be increased, so that the lower end of the depth measuring rod 20 can vertically extend into the deepest part of the crack to ensure the accurate measurement of the crack depth.

[0024] Furthermore, to ensure that the depth measuring rod 20 inserted into the perforation 19 does not affect the movement of the entire device, a positioning sliding groove 23 can also be opened along the length direction on the hole wall of the perforation 19 (as Figure 2 shown), and a limiting block 24 that can slide up and down along the positioning sliding groove 23 is provided at the rod wall of the depth measuring rod 20 near the upper end (as Figure 3 shown). The position of the limiting block 24 should ensure that the lower end of the depth measuring rod 20 will not extend out of the mounting plate 8 when the limiting block 24 blocks above the upper port of the perforation 19. Thus, when moving the entire device, it is convenient to avoid the lower end of the depth measuring rod 20 extending out of the mounting plate 8 and inserting into the municipal road surface to affect the movement of the device through the misaligned blocking of the limiting block 24 and the positioning sliding groove 23.

[0025] During use, first install the walking wheels 3 on the connecting plate 2 to facilitate the direct pushing of the device. After moving to directly above the crack of the municipal road that needs to be measured, remove the walking wheels 3 to ensure that the lower surface of the mounting plate 8 is flat against the road surface at the crack to form a measuring reference surface, and then the width and depth of the crack can be measured.

[0026] When crack width measurement is required, first ensure that the width measurement heads 17 on both sliders 16 extend into the crack. Then, rotate the rotating lead screw 9 to move the lifting sliding sleeve 12 downward horizontally, so that the inclined connecting rod 14 pushes the slider 16 to slide horizontally along the sliding rod 1 away from the mounting plate 8, thereby realizing the horizontal opening of the two width measurement heads 17 and easily completing the width measurement of the municipal road crack. When crack depth measurement is required, align the limit block 24 with the positioning chute 23, so that the depth measurement rod 20 slides downward along the through hole 19. First, make the lower end of the depth measurement rod 20 support on the road surface at the crack (that is, ensure that the lower end of the depth measurement rod 20 is flush with the measurement reference surface). At this time, record the scale value of the longitudinal scale mark 21 above the rotating handle 10. Then, move the mounting plate 8 to make the through hole 19 directly above the crack, and make the depth measurement rod 20 inserted into the through hole 19 continue to slide downward into the crack under its own gravity. At this time, record the scale value of the longitudinal scale mark 21 above the rotating handle 10 again. The difference between the two recorded scale values is the depth of the crack, and the depth measurement of the municipal road crack is easily completed. The whole device can not only easily complete the width and depth measurement of the municipal road crack, but also improve the stability and accuracy of the measurement, avoid the staff lying prone on the ground to observe the width and depth measurement values of the crack, and enhance the convenience of use.

Claims

1. A municipal road crack detection device, characterized in that: It includes a pair of slide bars arranged in parallel. The end parts of the two slide bars are respectively connected into one body through a horizontally arranged connecting plate. A pair of traveling wheels are arranged in pairs on the connecting plate, and the traveling wheels are detachably installed on the bottom surface of the connecting plate. A mounting plate is horizontally arranged in the middle of the two slide bars. A rotary screw rod with a rotary handle at the upper end is vertically arranged on the mounting plate, and the lower end of the rotary screw rod is connected to the top surface of the mounting plate through a bearing seat. A lifting slide sleeve is fitted and sleeved on the rotary screw rod in a threaded manner. A pair of inclined connecting rods are symmetrically hinged on the lifting slide sleeve. The inclined lower ends of the two inclined connecting rods are hinged with sliders that slide horizontally along the slide bars. Width measuring heads are vertically arranged on the bottom surfaces of the two sliders. A through hole is axially formed in the rotary screw rod, and a depth measuring rod is inserted into the through hole. The lower end of the depth measuring rod passes through the mounting plate to form a measuring end extending into the crack.

2. The municipal road crack detection device according to claim 1, characterized in that: Horizontal scale marks extending from the mounting plate to both sides are arranged on the slide bars, and vertical scale marks extending from top to bottom are arranged at the upper end of the depth measuring rod.

3. The municipal road crack detection device according to claim 1, characterized in that: A pressing block is arranged at the upper end of the depth measuring rod and above the rotary handle.

4. The municipal road crack detection device according to claim 1, characterized in that: A positioning chute is axially formed in the hole wall of the through hole, and a limit clamping block that slides up and down along the positioning chute is arranged at the upper end of the rod wall of the depth measuring rod.

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