Road flatness detection equipment
By designing a combination of measuring ruler and detection top block, a fast and accurate highway smoothness detection was achieved, solving the problems of complex operation and large error of existing equipment.
Patent Information
- Application Number
- CN202423020417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing highway smoothness testing equipment is complex to operate, makes it difficult to distinguish gaps with the naked eye, and is prone to data errors.
A highway smoothness testing device was designed, which uses a measuring ruler, a testing block, and a smoothness scale. The testing block can move up and down, and the scale is displayed on the observation plate to quickly determine the smoothness.
It simplifies the operation process, reduces human error, and improves the accuracy and efficiency of testing.
Smart Images
Figure CN223496974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway smoothness testing, and in particular to a highway smoothness testing device. Background Technology
[0002] After the road is paved, its flatness needs to be tested. Currently, our mainstream testing equipment and methods are as follows: Our testing equipment uses a three-meter straightedge and a wedge-shaped feeler gauge. The method we use is the three-meter straightedge method. Before testing, we first determine the frequency of testing. Generally, we test twice every 200 meters, and each test is performed continuously for five feet. The regulations require that the testing position be 0.8-1 meters away from the lane line and parallel to the lane line. When testing, we first mark the intersection points, and then place the three-meter straightedge on them. Since the three-meter straightedge is straight, but the road cannot be perfectly straight, some gaps will appear. We find the largest gap, insert the feeler gauge, and move the vernier to measure the size of the gap.
[0003] This measurement method is currently the most common. Its advantages are that the equipment is simple and the operation is simple. However, the disadvantages are that, firstly, after placing the three-meter ruler, it is difficult to distinguish the gap and find the largest gap by visual inspection. Secondly, when inserting the feeler gauge, the three-meter ruler is easy to move, causing data errors. Therefore, we have improved and designed a highway smoothness detection device. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a highway smoothness testing device.
[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows: a highway smoothness testing device, comprising a measuring ruler, a testing top block, and a smoothness scale; the measuring ruler has multiple vertically extending mounting slots arranged in an array along its length, and the testing top block is mounted within the mounting slots, allowing it to move vertically; the upper end of the testing top block always extends beyond the mounting slot, and an observation plate with scale markings is provided on one side of the measuring ruler at the extended upper end of the testing top block. When the measuring ruler is placed flat on the ground, the bottom of each testing top block falls and contacts the ground, allowing the worker to observe the smoothness simply by glancing at the corresponding scale markings on the top of the testing top block.
[0006] The bottom of the detection top block is equipped with a measuring needle with a diameter of 0.5-1cm.
[0007] Limiting grooves are vertically arranged on both sides of the row of mounting grooves, corresponding to the positions of each mounting groove. Limiting blocks are arranged on both sides of the detection top block at the corresponding positions. The limiting blocks move up and down within the limiting grooves. When the measuring needle is retracted into the mounting groove, the limiting block is at the upper end of the limiting groove.
[0008] The measuring ruler has a horizontal through-hole slot on one side of its bottom. When not in use, the measuring needle is retracted and a baffle is inserted into the slot for storage.
[0009] The upper end of the detection top block is a rectangular top block head, and the distance between the observation plate and the top block head is between 0.5mm and 1mm.
[0010] A handle is provided in the middle of one side of the measuring ruler.
[0011] The beneficial effects of this utility model are as follows:
[0012] The advantage of this device is that when measurement is required, the baffle is pulled out, the device is placed on the ground, and the technician only needs to quickly look at the measuring scale and observe the position of the top block head above the measuring block and the scale to quickly identify the regularity of the ground and obtain the data. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of the present invention;
[0015] Figure 2 This is a magnified view of a portion of the image;
[0016] Figure 3 This is a sectional view of the equipment. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] See Figure 1-3 .
[0019] This utility model discloses a highway smoothness testing device, including a measuring ruler 1, a testing top block 2, and a smoothness scale 3. The measuring ruler has multiple vertically extending mounting slots 4 arranged in an array along its length. The testing top block 2 is mounted within these mounting slots and can move vertically. The upper end of the testing top block always extends beyond the mounting slot. An observation plate 5 is provided on one side of the measuring ruler at the extended upper end of the testing top block, and the observation plate is provided with the smoothness scale 3. When the measuring ruler is placed flat on the ground, the bottom of each testing top block falls and contacts the ground. The worker can observe the smoothness by simply glancing at the corresponding scale position on the top of the testing top block.
[0020] The bottom of the detection top block is provided with a measuring needle 6 with a diameter of 0.5-1cm.
[0021] Limiting grooves 7 are vertically arranged on both sides of the row of mounting grooves, corresponding to the positions of each mounting groove. Limiting blocks 8 are arranged on both sides of the detection top block, corresponding to the positions of each mounting groove. The limiting blocks move up and down within the limiting grooves. When the measuring needle is retracted into the mounting groove, the limiting block is at the upper end of the limiting groove.
[0022] The measuring ruler has a horizontal through-hole slot 9 on one side of its bottom. When not in use, the measuring needle is retracted and a baffle 10 is inserted into the slot for storage.
[0023] The upper end of the detection top block is a rectangular top block head 11, and the distance between the observation plate and the top block head is between 0.5mm and 1mm.
[0024] A handle 12 is provided in the middle of one side of the measuring ruler.
[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A highway smoothness testing device, characterized in that: It includes a measuring ruler (1), a detection top block (2), and a flatness scale (3); the measuring ruler has multiple vertically extending mounting slots (4) arranged in an array along its length; the detection top block (2) can be installed in the mounting slots and can move up and down; the upper end of the detection top block always extends out of the mounting slot; an observation plate (5) is provided on one side of the measuring ruler at the upper end of the detection top block; and the flatness scale (3) is provided on the observation plate.
2. The highway smoothness testing equipment according to claim 1, characterized in that: The bottom of the detection top block is provided with a measuring needle (6) with a diameter of 0.5-1cm.
3. The highway smoothness testing equipment according to claim 2, characterized in that: Limiting grooves (7) are vertically arranged on both sides of the row of mounting grooves and at positions corresponding to each mounting groove. Limiting blocks (8) are arranged on both sides of the detection top block at positions corresponding to them. The limiting blocks move up and down in the limiting grooves. When the measuring needle is retracted into the mounting groove, the limiting block is at the upper end of the limiting groove.
4. The highway smoothness testing equipment according to claim 2, characterized in that: The measuring ruler has a horizontal through-hole baffle slot (9) on one side of its bottom. When not in use, the measuring needle is retracted and a baffle (10) is inserted into the baffle slot for storage.
5. The highway smoothness testing equipment according to claim 2, characterized in that: The upper end of the detection top block is a rectangular top block head (11), and the distance between the observation plate and the top block head is between 0.5mm and 1mm.
6. The highway smoothness testing equipment according to claim 1, characterized in that: A handle (12) is provided in the middle of one side of the measuring ruler.