Road compactness detection device

Abstract

The utility model relates to a road compactness detection device, which belongs to the technical field of road detection and comprises a base and a support. The detection assembly comprises an electric push rod fixedly connected to the top of the support, a connecting plate fixedly connected to the bottom end of a movable rod of the electric push rod, a connecting frame fixedly connected to the bottom of the connecting plate, two connecting blocks arranged on the inner side of the connecting frame, and mounting blocks fixedly connected to the opposite side walls of the two connecting blocks. The four elastic telescopic pieces are fixedly connected to the bottom of the mounting block, the fixing plate is fixedly connected between the bottom ends of the four elastic telescopic pieces, and the four ultrasonic probes are fixedly connected to the bottom of the fixing plate. According to the road compactness detection device, damage-free compactness detection is carried out on a road through the ultrasonic probe, damage to the road surface is avoided, and in addition, the ultrasonic probe and the pressure sensor can be rapidly detached from the connecting frame through cooperation of the sliding block, the sliding shaft and the positioning shaft.

Description

Technical Field

[0001] This utility model relates to the field of highway testing technology, specifically a highway compaction testing device. Background Technology

[0002] Highway engineering refers to the surveying, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include: roadbed, pavement, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, as well as buildings, workshops, and other service facilities used for construction, maintenance, and monitoring. Compaction degree is one of the key indicators for the quality inspection of roadbed and pavement construction.

[0003] Chinese Patent Publication No. CN221441459U discloses a highway compaction testing device. This utility model moves the device to the required sampling position by pushing a push rod, which in turn moves the base and casters. An external controller activates three motors: a first motor, a second motor, and a third motor. The first and second motors rotate synchronously in the same direction. This rotation drives the first and second threaded rods to rotate synchronously. The rotation of the threaded rods causes the first and second connecting plates to move downwards, which in turn moves the support plate synchronously. After the motors start, the sampling cylinder rotates. The sampling cylinder, following the support plate downwards, passes through the movable hole and then contacts the ground to begin the sampling process. The design of the sampling cylinder's blade and cylinder ensures that the sample after drilling is retained inside the sampling cylinder, preventing breakage and ensuring the accuracy of the test.

[0004] However, this utility model uses a blade to take samples, which can cause some damage to the road surface and results in a small sample representativeness range. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a highway compaction testing device, which has the advantages of avoiding damage to the road surface.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A highway compaction degree testing device includes a base and a support, wherein the top of the support is provided with a testing component for detecting compaction degree;

[0008] The detection assembly includes an electric push rod fixedly connected to the top of the bracket, a connecting plate fixedly connected to the bottom of the movable rod of the electric push rod, a connecting frame fixedly connected to the bottom of the connecting plate, two connecting blocks disposed inside the connecting frame, an mounting block fixedly connected to the opposite side wall of the two connecting blocks, four elastic telescopic members fixedly connected to the bottom of the mounting block, a fixing plate fixedly connected between the bottom ends of the four elastic telescopic members, and four ultrasonic probes fixedly connected to the bottom of the fixing plate.

[0009] Furthermore, four casters are fixedly connected to the four corners of the base, and each caster is equipped with a brake pad. An inspection port is provided on the inner side of the base.

[0010] Furthermore, the top of the bracket has a fixing opening, and a fixing frame is fixedly connected to the inside of the fixing opening, and the electric push rod is fixedly connected to the inside of the fixing frame.

[0011] Furthermore, guide holes are provided on the left and right sides of the inner side of the connecting plate, and guide rods are slidably connected to the inner sides of both guide holes.

[0012] Furthermore, the top end of the guide rod is fixedly connected to the inner top wall of the bracket, and the bottom end of the guide rod is fixedly connected to the upper surface of the base.

[0013] Furthermore, each of the two connecting blocks has a movable cavity on its front side, and a sliding shaft is fixedly connected between the inner left side wall and the inner right side wall of the movable cavity. A slider is slidably connected to the outer side of the sliding shaft, and a positioning shaft is fixedly connected to the opposite side wall of the two sliders. A fixing groove is provided on the inner top wall and the inner bottom wall of the movable cavity, and a positioning magnetic block adapted to the slider is fixedly connected to the inner side of the fixing groove.

[0014] Furthermore, the two connecting blocks are respectively arranged on the left and right sides of the inner side of the connecting frame. The opposite side walls of the left and right connecting blocks are provided with through holes adapted to the positioning shaft. The left and right side walls of the connecting frame are provided with positioning holes adapted to the positioning shaft, and the positioning holes are connected to the corresponding through holes.

[0015] Furthermore, the four elastic telescopic members are respectively arranged at the four corners of the bottom of the mounting block, a pressure sensor is fixedly connected to the bottom of the mounting block, and a pressure block is fixedly connected to the upper surface of the fixing plate.

[0016] Compared with the prior art, this utility model provides a highway compaction degree testing device, which has the following beneficial effects:

[0017] This highway compaction testing device uses an ultrasonic probe to perform non-destructive compaction testing on the highway, avoiding damage to the road surface. In addition, through the cooperation of the slider, sliding shaft and positioning shaft, the ultrasonic probe and pressure sensor can be quickly removed from the connecting frame for easy cleaning and maintenance. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 A magnified structural diagram of structure A is shown below;

[0020] Figure 3 This is a perspective view of the base, bracket, and electric push rod in the structure of this utility model;

[0021] Figure 4 This is a front view of the present utility model.

[0022] In the diagram: 1. Base; 2. Bracket; 3. Electric push rod; 4. Connecting plate; 5. Connecting frame; 6. Connecting block; 7. Mounting block; 8. Elastic telescopic component; 9. Fixing plate; 10. Ultrasonic probe; 11. Moving wheel; 12. Fixing frame; 13. Guide rod; 14. Sliding shaft; 15. Sliding block; 16. Positioning shaft; 17. Positioning magnetic block; 18. Pressure sensor; 19. Pressure block. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 4 The highway compaction testing device in this embodiment includes a base 1 and a support 2. The top of the support 2 is provided with a testing component for detecting compaction.

[0025] Please see Figure 1 In this embodiment, the detection assembly includes an electric push rod 3 fixedly connected to the top of the bracket 2, a connecting plate 4 fixedly connected to the bottom of the movable rod of the electric push rod 3, a connecting frame 5 fixedly connected to the bottom of the connecting plate 4, two connecting blocks 6 disposed inside the connecting frame 5, a mounting block 7 fixedly connected to the opposite side wall of the two connecting blocks 6, four elastic telescopic members 8 fixedly connected to the bottom of the mounting block 7, a fixing plate 9 fixedly connected between the bottom ends of the four elastic telescopic members 8, and four ultrasonic probes 10 fixedly connected to the bottom of the fixing plate 9.

[0026] Specifically, four movable wheels 11 are fixedly connected to the four corners of the bottom of the base 1, and each of the four movable wheels 11 is equipped with a brake pad. An inspection port is opened on the inner side of the base 1.

[0027] It should be noted that the design of the movable wheel 11 facilitates flexible movement of the device on site, the brake pads ensure that the device remains stable during testing, and the design of the detection port allows the ultrasonic probe 10 to directly contact the road surface, ensuring effective transmission of the detection signal.

[0028] Specifically, the top of the bracket 2 is provided with a fixing opening, and a fixing frame 12 is fixedly connected to the inside of the fixing opening, and the electric push rod 3 is fixedly connected to the inside of the fixing frame 12.

[0029] It should be noted that the mounting bracket 12 is used to support the electric push rod 3 and ensure its stability during operation.

[0030] Specifically, guide holes are provided on the left and right sides of the inner side of the connecting plate 4, and guide rods 13 are slidably connected to the inner sides of the two guide holes. The top end of the guide rod 13 is fixedly connected to the inner top wall of the bracket 2, and the bottom end of the guide rod 13 is fixedly connected to the upper surface of the base 1.

[0031] It should be noted that the function of the guide rod 13 is to limit the movement direction of the connecting plate 4 and prevent it from deviating during the lifting process. The connecting plate 4 ensures the vertical movement accuracy of the detection component through the guiding effect of the guide rod 13.

[0032] Specifically, each of the two connecting blocks 6 has a movable cavity on its front side, and a sliding shaft 14 is fixedly connected between the inner left and inner right walls of the movable cavity. A slider 15 is slidably connected to the outer side of the sliding shaft 14, and a positioning shaft 16 is fixedly connected to the opposite side walls of the two sliders 15. A fixing groove is provided on the inner top and inner bottom walls of the movable cavity, and a positioning magnetic block 17 adapted to the slider 15 is fixedly connected to the inner side of the fixing groove. The two connecting blocks 6 are respectively arranged on the left and right sides of the inner side of the connecting frame 5. A through hole adapted to the positioning shaft 16 is provided on the opposite side walls of the left and right connecting blocks 6. A positioning hole adapted to the positioning shaft 16 is provided on the left and right side walls of the connecting frame 5, and the positioning hole is connected to the corresponding through hole.

[0033] It should be noted that the slider 15 slides in the movable cavity via the sliding shaft 14, the positioning shaft 16 is used to fix the connecting block 6 and the connecting frame 5, and the positioning magnetic block 17 ensures that the slider 15 will not move when the connecting block 6 and the connecting frame 5 are connected and fixed. This design makes the detection component modular, which is convenient for disassembly, and thus convenient for maintenance and cleaning.

[0034] Specifically, four elastic telescopic components 8 are respectively arranged at the four corners of the bottom of the mounting block 7, a pressure sensor 18 is fixedly connected to the bottom of the mounting block 7, and a pressure block 19 is fixedly connected to the upper surface of the fixing plate 9.

[0035] It should be noted that the pressure sensor 18 and the pressure block 19 are used to monitor the contact pressure between the probe and the road surface in real time to ensure detection accuracy.

[0036] The working principle of the above embodiments is as follows:

[0037] When in use, move the device to the road surface to be tested, fix the position of the device by the brake pads of the moving wheel 11, start the electric push rod 3, push the connecting plate 4 and the connecting frame 5 downward, so that the ultrasonic probe 10 contacts the road surface. At this time, through the expansion and contraction characteristics of the elastic telescopic member 8, the pressure block 19 presses the pressure sensor 18 upward, so that the pressure sensor 18 monitors the contact pressure between the ultrasonic probe 10 and the road surface in real time.

[0038] The ultrasonic probe 10 emits ultrasonic signals, which penetrate the road surface and are reflected back. The probe receives the reflected signals and calculates the compaction degree by measuring the propagation time of the ultrasonic waves and combining them with the characteristic parameters of the road material.

[0039] When maintenance is required, slide the slider 15 along the sliding shaft 14 to disengage the positioning shaft 16 from the positioning hole of the connecting frame 5, separate the connecting block 6 from the connecting frame 5, and then remove the ultrasonic probe 10 and pressure sensor 18 from the connecting frame 5.

[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0041] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A highway compaction degree testing device, comprising a base (1) and a support (2), characterized in that: The top of the bracket (2) is provided with a detection component for detecting compaction. The detection assembly includes an electric push rod (3) fixedly connected to the top of the bracket (2), a connecting plate (4) fixedly connected to the bottom of the movable rod of the electric push rod (3), a connecting frame (5) fixedly connected to the bottom of the connecting plate (4), two connecting blocks (6) set inside the connecting frame (5), a mounting block (7) fixedly connected to the opposite side wall of the two connecting blocks (6), four elastic telescopic members (8) fixedly connected to the bottom of the mounting block (7), a fixing plate (9) fixedly connected between the bottom ends of the four elastic telescopic members (8), and four ultrasonic probes (10) fixedly connected to the bottom of the fixing plate (9).

2. The highway compaction degree testing device according to claim 1, characterized in that: The four corners of the bottom of the base (1) are fixedly connected to the movable wheels (11), and each of the four movable wheels (11) is equipped with a brake pad. The inner side of the base (1) is provided with a detection port.

3. The highway compaction degree testing device according to claim 1, characterized in that: The top of the bracket (2) is provided with a fixing opening, and a fixing frame (12) is fixedly connected to the inside of the fixing opening. The electric push rod (3) is fixedly connected to the inside of the fixing frame (12).

4. The highway compaction degree testing device according to claim 1, characterized in that: The connecting plate (4) has guide holes on its left and right sides, and guide rods (13) are slidably connected to the inner sides of both guide holes.

5. A highway compaction testing device according to claim 4, characterized in that: The top end of the guide rod (13) is fixedly connected to the inner top wall of the bracket (2), and the bottom end of the guide rod (13) is fixedly connected to the upper surface of the base (1).

6. The highway compaction degree testing device according to claim 1, characterized in that: Both connecting blocks (6) have movable cavities on their front sides, and a sliding shaft (14) is fixedly connected between the inner left side wall and the inner right side wall of the movable cavity. A slider (15) is slidably connected to the outer side of the sliding shaft (14), and a positioning shaft (16) is fixedly connected to the opposite side wall of the two sliders (15). A fixing groove is provided on the inner top wall and the inner bottom wall of the movable cavity, and a positioning magnetic block (17) that matches the slider (15) is fixedly connected to the inner side of the fixing groove.

7. The highway compaction degree testing device according to claim 1, characterized in that: The two connecting blocks (6) are respectively arranged on the left and right sides of the inner side of the connecting frame (5). The opposite side walls of the left and right connecting blocks (6) are provided with through holes that are compatible with the positioning shaft (16). The left and right side walls of the connecting frame (5) are provided with positioning holes that are compatible with the positioning shaft (16), and the positioning holes are connected to the corresponding through holes.

8. The highway compaction degree testing device according to claim 1, characterized in that: The four elastic telescopic members (8) are respectively arranged at the four corners of the bottom of the mounting block (7). The bottom of the mounting block (7) is fixedly connected to a pressure sensor (18), and the upper surface of the fixing plate (9) is fixedly connected to a pressure block (19).

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