A highway subgrade quality detection device

Abstract

The utility model discloses a highway roadbed quality detection device relates to road engineering construction and detection technical field, including support board, the right side of support board upper surface is equipped with detection device main part, the upper of detection device main part is equipped with PLC integrated machine, the left side of support board upper surface is equipped with through -hole. The utility model discloses design reasonable structure, it can provide multi -angle rotation base for first hydraulic telescopic link through the ball chain of positioning adjusting mechanism, can nimble adaptation survey point periphery roadbed high and low fluctuation's flatness, solve the problem of " detection head angle can not be adjusted, easy and roadbed close not closely " of existing device, simultaneously, the telescopic cooperation of sliding rod and sliding cylinder can promote detection head gradually close survey point, until end face completely close roadbed, need not repeatedly manual calibration, improve preliminary positioning accuracy, avoid the detection error caused by the deviation of close, further shorten single survey point preparation time.

Description

Technical Field

[0001] This utility model relates to the field of road engineering construction and testing technology, specifically a highway subgrade quality testing device. Background Technology

[0002] The compaction quality of highway subgrade is a critical control point in road construction. Inadequate compaction can easily lead to subgrade settlement and pavement cracking, directly affecting road traffic safety and service life. During subgrade construction acceptance and operation and maintenance testing, specialized equipment is needed to accurately test compaction to control construction quality and reduce potential defects. Therefore, efficient highway subgrade compaction testing equipment has become an industry necessity.

[0003] Existing highway subgrade compaction testing devices can collect data through sensors, accurately calculate the degree of compaction, and some can even display the test results in real time, reducing errors from manual calculations and helping to quickly determine whether the compaction quality meets the standards. However, when testing the degree of compaction, the detection head of existing devices cannot adjust its angle according to the flatness of the subgrade around the measuring point, requiring repeated adjustments to stabilize the device, resulting in a long time-consuming operation for fixing a single measuring point. To address these issues, we provide a highway subgrade quality testing device. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] This utility model proposes a highway subgrade quality testing device. Through the cooperation between components such as ball chain, first hydraulic telescopic rod, sliding rod, sliding cylinder, and testing head, it solves the problems of existing devices, such as the inability to adjust the angle of the testing head, the tendency for the device to not fit tightly with the subgrade, and the testing error caused by the fitting deviation.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a highway subgrade quality testing device, comprising a support plate, a testing device body installed on the right side of the upper surface of the support plate, a PLC integrated machine installed above the testing device body, a through hole opened on the left side of the upper surface of the support plate, a positioning adjustment mechanism provided on the left side above the support plate, the positioning adjustment mechanism comprising a mounting frame, a ball chain installed on the top surface of the inner side of the mounting frame, and a first hydraulic telescopic rod hinged to the top surface of the inner side of the mounting frame via the ball chain;

[0008] A sliding cylinder is fixedly connected to the output end of the first hydraulic telescopic rod. A sliding cavity is opened at the end of the sliding cylinder away from the first hydraulic telescopic rod. A limit ring is fixedly connected to the lower surface of the sliding cylinder. A sliding hole is opened on the lower surface of the limit ring. A sliding rod is slidably connected to the inner side wall of the sliding hole. A sliding plate is fixedly connected to the top end of the sliding rod. A detection head is installed at the bottom end of the sliding rod.

[0009] Furthermore, the lower surface of the mounting bracket is fixedly connected to the upper surface of the support plate, and the PLC integrated machine is electrically connected to the main body of the detection device through a wireless communication module.

[0010] Furthermore, the first hydraulic telescopic rod is electrically connected to the PLC integrated machine via a wireless communication module, and the detection head is electrically connected to the main body of the detection device via a wireless communication module.

[0011] Furthermore, the outer surface of the sliding plate is slidably connected to the inner wall of the sliding cavity, and the limiting ring is used to prevent the sliding plate from falling out of the sliding cavity, so that the sliding rod is separated from the sliding cylinder.

[0012] Furthermore, a movable support positioning mechanism is provided below the positioning adjustment mechanism. The movable support positioning mechanism includes a ring frame, the inner side of which is fixedly connected to the outer surface of the support plate, and a push rod is fixedly connected to the right side of the upper surface of the ring frame.

[0013] Furthermore, two sets of mutually symmetrical support legs are fixedly connected to the lower surface of the ring frame, and two sets of mutually symmetrical second hydraulic telescopic rods are fixedly installed on the lower surface of the ring frame.

[0014] Furthermore, the two sets of the second hydraulic telescopic rods are electrically connected to the PLC integrated machine via a wireless communication module, and roller sets are fixedly installed at the output ends of the two sets of the second hydraulic telescopic rods.

[0015] (iii) Beneficial effects:

[0016] Compared with existing technologies, this highway subgrade quality testing device has the following advantages:

[0017] I. This highway subgrade quality inspection device provides a multi-angle rotation base for the first hydraulic telescopic rod through the ball chain of the positioning adjustment mechanism. It can flexibly adapt to the flatness of the subgrade around the measuring point, solving the problem of "the angle of the detection head cannot be adjusted and it is easy to not fit tightly with the subgrade" in the existing device. At the same time, the telescopic cooperation between the sliding rod and the sliding cylinder can push the detection head to gradually approach the measuring point until the end face is completely in contact with the subgrade. There is no need for repeated manual calibration, which not only improves the initial positioning accuracy, but also avoids the detection error caused by the fit deviation, and further shortens the preparation time for a single measuring point.

[0018] Second, this highway subgrade quality testing device, through the cooperation of the push rod and roller group of the mobile support positioning mechanism, can quickly move the ring frame, support plate and the whole device to any measuring point, solving the problems of "inconvenient movement and low transfer efficiency" of traditional devices; after reaching the measuring point, the PLC integrated machine controls the second hydraulic telescopic rod to retract, so that the support leg supports the device and replaces the roller group to bear the load, which can not only avoid the device shifting during the test, but also eliminate the need for manual fixing, greatly shortening the positioning time of a single measuring point, and is especially suitable for the needs of continuous testing of multiple measuring points of highway subgrade. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural exploded view of the positioning and adjusting mechanism of this utility model;

[0022] Figure 3 This is a three-dimensional structural exploded view of the mobile support and positioning mechanism of this utility model;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Support plate; 2. Main body of the detection device; 3. PLC integrated machine; 4. Through hole; 5. Positioning adjustment mechanism; 501. Mounting bracket; 502. Ball chain; 503. First hydraulic telescopic rod; 504. Sliding cylinder; 505. Sliding cavity; 506. Limiting ring; 507. Sliding hole; 508. Sliding rod; 509. Sliding plate; 510. Detection head; 6. Mobile support positioning mechanism; 601. Ring frame; 602. Push rod; 603. Support leg; 604. Second hydraulic telescopic rod; 605. Roller assembly. Detailed Implementation

[0026] 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.

[0027] The PLC integrated machine 3, the first hydraulic telescopic rod 503, and the second hydraulic telescopic rod 604 in this utility model are all common electrical and hydraulic equipment in the prior art. This application will not elaborate on their models or internal structures.

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a highway subgrade quality testing device, including a support plate 1, a testing device body 2 installed on the right side of the upper surface of the support plate 1, a PLC integrated machine 3 installed above the testing device body 2, a through hole 4 opened on the left side of the upper surface of the support plate 1, and a positioning adjustment mechanism 5 provided on the left side above the support plate 1. The positioning adjustment mechanism 5 includes a mounting frame 501, a ball chain 502 installed on the top surface of the inner side of the mounting frame 501, a first hydraulic telescopic rod 503 hinged to the top surface of the inner side of the mounting frame 501 through the ball chain 502, a sliding cylinder 504 fixedly connected to the output end of the first hydraulic telescopic rod 503, a sliding cavity 505 opened at the end of the sliding cylinder 504 away from the first hydraulic telescopic rod 503, and a limit ring 506 fixedly connected to the lower surface of the sliding cylinder 504. The lower surface of the limiting ring 506 has a sliding hole 507. A sliding rod 508 is slidably connected to the inner wall of the sliding hole 507. A sliding plate 509 is fixedly connected to the top of the sliding rod 508. A detection head 510 is installed at the bottom of the sliding rod 508. The lower surface of the mounting bracket 501 is fixedly connected to the upper surface of the support plate 1. The PLC integrated machine 3 is electrically connected to the detection device body 2 through a wireless communication module. The first hydraulic telescopic rod 503 is electrically connected to the PLC integrated machine 3 through a wireless communication module. The detection head 510 is electrically connected to the detection device body 2 through a wireless communication module. The outer surface of the sliding plate 509 is slidably connected to the inner wall of the sliding cavity 505. The limiting ring 506 is used to prevent the sliding plate 509 from falling out of the sliding cavity 505, so that the sliding rod 508 is separated from the sliding cylinder 504.

[0029] The ball chain 502 of the positioning adjustment mechanism 5 provides a multi-angle rotation base for the first hydraulic telescopic rod 503, which can flexibly adapt to the flatness of the roadbed around the measuring point, solving the problem of "the angle of the detection head cannot be adjusted and it is easy to not fit tightly with the roadbed" in the existing device. At the same time, the telescopic cooperation between the sliding rod 508 and the sliding cylinder 504 can push the detection head 510 to gradually approach the measuring point until the end face is completely in contact with the roadbed. There is no need for repeated manual calibration, which not only improves the initial positioning accuracy, but also avoids the detection error caused by the fit deviation, further shortening the preparation time for a single measuring point.

[0030] A movable support positioning mechanism 6 is provided below the positioning adjustment mechanism 5. The movable support positioning mechanism 6 includes a ring frame 601. The inner side of the ring frame 601 is fixedly connected to the outer surface of the support plate 1. A push rod 602 is fixedly connected to the right side of the upper surface of the ring frame 601. Two sets of mutually symmetrical support legs 603 are fixedly connected to the lower surface of the ring frame 601. Two sets of mutually symmetrical second hydraulic telescopic rods 604 are fixedly installed on the lower surface of the ring frame 601. The two sets of second hydraulic telescopic rods 604 are electrically connected to the PLC integrated machine 3 through a wireless communication module. Roller sets 605 are fixedly installed at the output ends of the two sets of second hydraulic telescopic rods 604.

[0031] By using the push rod 602 of the movable support positioning mechanism 6 in conjunction with the roller group 605, the ring frame 601, support plate 1 and the entire device can be quickly moved to any measuring point, solving the problem of "inconvenient movement and low transfer efficiency" of traditional devices. After reaching the measuring point, the PLC integrated machine 3 controls the second hydraulic telescopic rod 604 to retract, so that the support leg 603 supports the device and replaces the roller group 605 to bear the load. This can not only avoid the device from shifting during the test, but also eliminate the need for manual fixing, greatly shortening the positioning time of a single measuring point, and is especially suitable for the needs of continuous testing of multiple measuring points on highway subgrade.

[0032] Working principle: First, the operator pushes the push rod 602 of the mobile support positioning mechanism 6, which, with the help of the roller group 605, moves the ring frame 601, support plate 1, and the entire device to the test point on the roadbed. After reaching the test point, the PLC integrated machine 3 sends a control signal to the second hydraulic telescopic rod 604. The second hydraulic telescopic rod 604 retracts and drives the roller group 605 to lift upwards until the support leg 603 fully contacts the ground and supports the support plate 1 and the entire device, thus completing the stable fixation at the test point. Next, the angle of the detection head is adapted and initially positioned. Relying on the multi-angle rotation capability of the ball chain 502 on the inner top surface of the mounting frame 501 in the positioning adjustment mechanism 5, the spatial direction of the first hydraulic telescopic rod 503 is adjusted. Then, using the telescopic cooperation of the sliding rod 508 and the sliding cylinder 504, the detection head 510 is pushed closer and closer to the test point until the end face of the detection head 510 is completely aligned with the roadbed surface. Full fit ensures precise initial positioning. Subsequently, the first hydraulic telescopic rod 503 extends under the control of the PLC integrated machine 3. The axial thrust generated by the rod drives the sliding cylinder 504 towards the roadbed, causing the sliding plate 509 at the top of the sliding rod 508 to move to the innermost side of the sliding cavity 505 inside the sliding cylinder 504. At this time, the thrust is stably transmitted to the detection head 510 through the sliding rod 508, causing the detection head 510 to be tightly pressed against the measuring point with a preset pressure. Finally, the roadbed compaction data collected by the detection head 510 is transmitted to the main body 2 of the detection device through the wireless communication module for preliminary processing such as filtering and noise reduction. The processed data is then synchronized to the PLC integrated machine 3, which performs calculation and analysis and displays the compaction value and whether it meets the standard in real time, completing the single measuring point detection. When detecting the next measuring point, the above "movement-positioning-adjustment-pressure-detection" process is repeated.

[0033] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A highway subgrade quality testing device, comprising a support plate (1), characterized in that: The detection device body (2) is installed on the right side of the upper surface of the support plate (1), and a PLC integrated machine (3) is installed above the detection device body (2). A through hole (4) is opened on the left side of the upper surface of the support plate (1). A positioning adjustment mechanism (5) is provided on the left side above the support plate (1). The positioning adjustment mechanism (5) includes a mounting frame (501). A ball chain (502) is installed on the top surface of the inner side of the mounting frame (501). A first hydraulic telescopic rod (503) is hinged to the top surface of the inner side of the mounting frame (501) through the ball chain (502). A sliding cylinder (504) is fixedly connected to the output end of the first hydraulic telescopic rod (503). A sliding cavity (505) is opened at the end of the sliding cylinder (504) away from the first hydraulic telescopic rod (503). A limit ring (506) is fixedly connected to the lower surface of the sliding cylinder (504). A sliding hole (507) is opened on the lower surface of the limit ring (506). A sliding rod (508) is slidably connected to the inner wall of the sliding hole (507). A sliding plate (509) is fixedly connected to the top end of the sliding rod (508). A detection head (510) is installed at the bottom end of the sliding rod (508).

2. The highway subgrade quality testing device according to claim 1, characterized in that: The lower surface of the mounting bracket (501) is fixedly connected to the upper surface of the support plate (1), and the PLC all-in-one machine (3) is electrically connected to the main body of the detection device (2) through a wireless communication module.

3. The highway subgrade quality testing device according to claim 2, characterized in that: The first hydraulic telescopic rod (503) is electrically connected to the PLC integrated machine (3) through a wireless communication module, and the detection head (510) is electrically connected to the detection device body (2) through a wireless communication module.

4. The highway subgrade quality testing device according to claim 3, characterized in that: The outer surface of the sliding plate (509) is slidably connected to the inner wall of the sliding cavity (505), and the limiting ring (506) is used to prevent the sliding plate (509) from falling out of the sliding cavity (505) so that the sliding rod (508) can be separated from the sliding cylinder (504).

5. A highway subgrade quality testing device according to claim 4, characterized in that: A movable support positioning mechanism (6) is provided below the positioning adjustment mechanism (5). The movable support positioning mechanism (6) includes a ring frame (601). The inner side of the ring frame (601) is fixedly connected to the outer surface of the support plate (1). A push rod (602) is fixedly connected to the right side of the upper surface of the ring frame (601).

6. A highway subgrade quality testing device according to claim 5, characterized in that: The lower surface of the ring frame (601) is fixedly connected with two sets of mutually symmetrical support legs (603), and the lower surface of the ring frame (601) is fixedly installed with two sets of mutually symmetrical second hydraulic telescopic rods (604).

7. A highway subgrade quality testing device according to claim 6, characterized in that: The two sets of second hydraulic telescopic rods (604) are electrically connected to the PLC integrated machine (3) through a wireless communication module. Roller sets (605) are fixedly installed at the output ends of the two sets of second hydraulic telescopic rods (604).

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