Road pavement crack measuring device

Abstract

The utility model relates to the technical field of measuring devices, and provides a road surface crack measuring device which comprises a vehicle body and an electric push rod, universal wheels are uniformly fixed on two sides of the bottom end of the vehicle body, the electric push rod is fixed at the bottom end of one side of the vehicle body, and a lifting plate is fixed at the bottom end of the electric push rod. A fixing block is fixed to one side of the bottom end of the lifting plate, a measuring structure is arranged in the electric push rod, and a handle is fixed to one side of the top of the vehicle body. According to the utility model, through the arrangement of the guide structure, the measuring tape passes through the upper part of the roller, the driving motor is started, the driving motor drives the winding disc to rotate, the movable block slides on the outer side of the sliding rod along with the measuring tape, and under the guide action of the roller, the measuring tape smoothly pays off and measures the depth of a crack; the road pavement crack measuring device realizes the function of conveniently measuring the crack depth, so that the applicability of the road pavement crack measuring device in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, in particular to a road pavement crack measuring device. Background Art

[0002] Crack measuring device is used to detect the crack width of concrete structure. It is commonly used in bridges, tunnels, walls, concrete pavements, metal surfaces and other crack width measuring devices. However, the existing pavement crack measuring device has a relatively single function, so a road pavement crack measuring device is used;

[0003] To this end, the patent with publication number CN216670003U discloses a road pavement crack measuring device, including a chassis, a support frame arranged on the upper side of the chassis, and a universal wheel arranged at the bottom of the support frame, a lifting assembly is arranged in the upper part of the support frame, one end of the lifting assembly is connected to a load-bearing rod, a detection probe is arranged at the bottom of the load-bearing rod, and a blocking assembly is arranged on the load-bearing rod outside the detection probe; the blocking assembly includes a blocking cover, a first slider and a second slider are symmetrically arranged on both sides of a central hole of the blocking cover, one end of the first slider is slidably arranged in a first slide groove, one end of the second slider is slidably arranged in a second slide groove, a first spring is arranged on one side surface of the first slide groove, one end of the first spring is connected to the first slider, a second spring is arranged on one side surface of the second slide groove, and one end of the second spring is connected to the second slider. The utility model can protect the detection position, improve the measurement accuracy, and the detection depth is adjustable and the detection range is wide;

[0004] Although the above-mentioned road pavement crack measuring device improves the crack measurement accuracy, the device is inconvenient to measure the depth of the crack, resulting in a relatively single function of the device, which makes it less applicable when used. Utility Model Content

[0005] The utility model aims to provide a road pavement crack measuring device, which is used to solve the defect that the existing road pavement crack measuring device is inconvenient to measure the crack depth.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a road pavement crack measuring device, comprising a body and an electric push rod;

[0007] Universal wheels are evenly fixed on both sides of the bottom end of the vehicle body, an electric push rod is fixed on the bottom end of one side of the vehicle body, a lifting plate is fixed on the bottom end of the electric push rod, a fixing block is fixed on one side of the bottom end of the lifting plate, a measuring structure is arranged inside the electric push rod, a handle is fixed on one side of the top of the vehicle body, a winding reel is arranged inside the vehicle body, a tape measure is arranged on the outside of the winding reel, and a driving motor is installed on the outer wall of the vehicle body at one end of the winding reel;

[0008] A guide structure is provided on one side of the vehicle body, and the guide structure includes a connecting seat, a sliding rod, a movable block and a roller, and the sliding rod is provided on one side of the vehicle body;

[0009] A plumb bob is provided at one end of the measuring tape.

[0010] When using the device, by providing a guide structure, the device can easily measure the crack depth, thereby improving the applicability of the road pavement crack measuring device when in use; by providing a measuring structure, the device can easily measure the crack width, thereby improving the convenience of the road pavement crack measuring device when in use.

[0011] Preferably, the measuring structure includes a threaded rod, a transmission motor, a moving block and a built-in cavity, wherein the built-in cavity is opened inside the lifting plate, a threaded rod is arranged inside the built-in cavity, a transmission motor is installed on the outer wall of the lifting plate at one end of the threaded rod, and the moving block is connected to the outer thread of the threaded rod. When the electric push rod is started, the electric push rod will push the lifting plate to move downward, and after moving to the appropriate position of the crack, the transmission motor is started, and the transmission motor will drive the threaded rod to rotate, and at this time, the threaded rod will drive the moving block to move, and a scale line is arranged on one side of the lifting plate, so as to facilitate the observation of the crack measurement width.

[0012] Preferably, one end of the threaded rod extends to the interior of the lifting plate and is rotatably connected to the lifting plate, and the other end of the threaded rod passes through the lifting plate and is fixedly connected to the output end of the transmission motor.

[0013] Preferably, one end of the moving block extends to the outside of the lifting plate, and one end of the winding drum passes through the vehicle body and is fixedly connected to the output end of the driving motor.

[0014] Preferably, both ends of the slide bar are fixed with a connecting seat, the middle of the connecting seat is penetrated by a movable block, and the bottom of the movable block is provided with a roller. The tape measure is passed through the roller, and the drive motor is started, and the drive motor drives the winding disk to rotate. At this time, the movable block will slide along the outer side of the slide bar with the tape measure, and under the guidance of the roller, the tape measure is smoothly released, so that the tape measure can measure the depth of the crack.

[0015] Preferably, one side of the connecting seat is fixedly connected to the vehicle body, and the sliding rod and the movable block are designed to be slidably connected.

[0016] Preferably, both ends of the roller wheel extend into the interior of the movable block and are rotatably connected to the movable block, and scale lines are provided on one side of the lifting plate and the measuring tape.

[0017] The utility model provides a road pavement crack measuring device, which has the advantages of:

[0018] By providing a guide structure, the measuring tape is passed through the top of the roller, and the driving motor is started, the driving motor will drive the winding disc to rotate, and the movable block will slide along the outer side of the slide rod following the measuring tape. Under the guidance of the roller, the measuring tape is smoothly laid out, and the measuring tape measures the crack depth, thus realizing the function of the device to facilitate the measurement of the crack depth, thereby improving the applicability of the road pavement crack measuring device when in use;

[0019] By providing a measuring structure and starting the electric push rod, the electric push rod will push the lifting plate to move downward. After moving to the appropriate position of the crack, the transmission motor will be started, and the transmission motor will drive the threaded rod to rotate. At this time, the threaded rod will drive the moving block to move. A scale line is provided on one side of the lifting plate to facilitate observation of the crack measurement width, thereby realizing the function of the device to facilitate measurement of the crack width, thereby improving the convenience of the road pavement crack measuring device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 4 It is a schematic diagram of a partially enlarged structure of the measurement structure section of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the guide structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. body; 2. electric push rod; 3. lifting plate; 4. measuring structure; 401. threaded rod; 402. transmission motor; 403. moving block; 404. built-in cavity; 5. fixed block; 6. universal wheel; 7. driving motor; 8. handle; 9. guide structure; 901. connecting seat; 902. sliding rod; 903. movable block; 904. roller; 10. winding reel; 11. measuring tape; 12. plumb bob. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model provides a road pavement crack measuring device, including a vehicle body 1 and an electric push rod 2. Universal wheels 6 are evenly fixed on both sides of the bottom end of the vehicle body 1. The electric push rod 2 is fixed to the bottom end of one side of the vehicle body 1. A lifting plate 3 is fixed to the bottom end of the electric push rod 2. A fixed block 5 is fixed to one side of the bottom end of the lifting plate 3. A measuring structure 4 is arranged inside the electric push rod 2. The measuring structure 4 includes a threaded rod 401, a transmission motor 402, a moving block 403 and a built-in cavity 404. The built-in cavity 404 is opened inside the lifting plate 3. The built-in cavity 40 4 is provided with a threaded rod 401 inside, a transmission motor 402 is installed on the outer wall of the lifting plate 3 at one end of the threaded rod 401, a moving block 403 is threadedly connected to the outer side of the threaded rod 401, one end of the threaded rod 401 extends to the inside of the lifting plate 3 and is rotatably connected to the lifting plate 3, the other end of the threaded rod 401 passes through the lifting plate 3 and is fixedly connected to the output end of the transmission motor 402, one end of the moving block 403 extends to the outside of the lifting plate 3, and one end of the winding drum 10 passes through the vehicle body 1 and is fixedly connected to the output end of the drive motor 7.

[0028] Reference Figure 1 and Figure 4 As shown, start the electric push rod 2, which will push the lifting plate 3 to move downward. After moving to the appropriate position of the crack, start the transmission motor 402, which will drive the threaded rod 401 to rotate. At this time, the threaded rod 401 will drive the moving block 403 to move. A scale line is set on one side of the lifting plate 3, so as to facilitate the observation of the crack width.

[0029] A handle 8 is fixed to one side of the top of the vehicle body 1, a winding reel 10 is provided inside the vehicle body 1, a measuring tape 11 is provided on the outside of the winding reel 10, a driving motor 7 is installed on the outer wall of the vehicle body 1 at one end of the winding reel 10, a guide structure 9 is provided on one side of the vehicle body 1, the guide structure 9 includes a connecting seat 901, a sliding rod 902, a movable block 903 and a roller 904, the sliding rod 902 is provided on one side of the vehicle body 1, connecting seats 901 are fixed at both ends of the sliding rod 902, a movable block 903 runs through the middle of the connecting seat 901, a roller 904 is provided at the bottom of the movable block 903, one side of the connecting seat 901 is fixedly connected to the vehicle body 1, the sliding rod 902 and the movable block 903 are designed to be slidably connected, both ends of the roller 904 extend to the inside of the movable block 903 and are designed to be rotatably connected with the movable block 903, scale lines are provided on one side of the lifting plate 3 and the measuring tape 11, and a plumb bob 12 is provided at one end of the measuring tape 11.

[0030] Reference Figure 1 and Figure 5As shown, the measuring tape 11 is passed over the roller 904, and the drive motor 7 is started. The drive motor 7 will drive the winding reel 10 to rotate. At this time, the movable block 903 will slide along the outside of the slide bar 902 following the measuring tape 11. Under the guidance of the roller 904, the measuring tape 11 is smoothly laid out, so that the measuring tape 11 can measure the depth of the crack.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A road pavement crack measuring device, comprising a vehicle body (1) and an electric push rod (2); Features: Universal wheels (6) are evenly fixed on both sides of the bottom of the vehicle body (1); an electric push rod (2) is fixed on the bottom of one side of the vehicle body (1); a lifting plate (3) is fixed on the bottom of the electric push rod (2); a fixing block (5) is fixed on one side of the bottom of the lifting plate (3); a measuring structure (4) is arranged inside the electric push rod (2); a handle (8) is fixed on one side of the top of the vehicle body (1); a winding reel (10) is arranged inside the vehicle body (1); a measuring tape (11) is arranged on the outside of the winding reel (10); and a driving motor (7) is installed on the outer wall of the vehicle body (1) at one end of the winding reel (10); A guide structure (9) is provided on one side of the vehicle body (1), and the guide structure (9) comprises a connecting seat (901), a sliding rod (902), a movable block (903) and a roller (904), and the sliding rod (902) is provided on one side of the vehicle body (1); A plumb bob (12) is provided at one end of the measuring tape (11).

2. A road pavement crack measuring device according to claim 1, characterized in that: The measuring structure (4) comprises a threaded rod (401), a transmission motor (402), a moving block (403) and a built-in cavity (404); the built-in cavity (404) is opened inside the lifting plate (3); a threaded rod (401) is arranged inside the built-in cavity (404); a transmission motor (402) is installed on the outer wall of the lifting plate (3) at one end of the threaded rod (401); and the moving block (403) is threadedly connected to the outer side of the threaded rod (401).

3. A road pavement crack measuring device according to claim 2, characterized in that: One end of the threaded rod (401) extends into the interior of the lifting plate (3) and is rotatably connected to the lifting plate (3), and the other end of the threaded rod (401) passes through the lifting plate (3) and is fixedly connected to the output end of the transmission motor (402).

4. A road pavement crack measuring device according to claim 2, characterized in that: One end of the moving block (403) extends to the outside of the lifting plate (3), and one end of the winding disk (10) passes through the vehicle body (1) and is fixedly connected to the output end of the driving motor (7).

5. A road pavement crack measuring device according to claim 1, characterized in that: A connecting seat (901) is fixed to both ends of the sliding rod (902), a movable block (903) penetrates the middle of the connecting seat (901), and a roller (904) is arranged at the bottom of the movable block (903).

6. A road pavement crack measuring device according to claim 5, characterized in that: One side of the connecting seat (901) is fixedly connected to the vehicle body (1), and the sliding rod (902) and the movable block (903) are designed to be slidably connected.

7. A road pavement crack measuring device according to claim 5, characterized in that: Both ends of the roller (904) extend into the interior of the movable block (903) and are rotatably connected to the movable block (903). Graduation lines are provided on one side of the lifting plate (3) and the measuring tape (11).

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