A subgrade modulus of resilience detection structure and a deflectometer

Abstract

This utility model relates to the field of roadbed testing technology and discloses a roadbed resilient modulus testing structure and deflection meter, including a beam frame one and a support plate. Three sets of positioning columns are inserted into one end of the beam frame one, and a beam frame two is fixedly connected to one end of each positioning column. Support boxes are fixedly connected to both sides of one end of the beam frame two. Limiting components are slidably connected inside the support boxes. A bubble level is installed on the top of the support plate, and four sets of adjustment components are sleeved on the bottom of the support plate. The limiting components include a sliding plate slidably connected inside the support box, and a support spring is fixedly connected to one end of the sliding plate. This roadbed resilient modulus testing structure and deflection meter, through the setting of the limiting components, achieves the effect of convenient disassembly and assembly of beam frame one and beam frame two. After disassembly, the equipment volume is reduced, making it easy to transport and store, especially suitable for field operation scenarios, while improving disassembly and assembly efficiency and facilitating use.

Description

Technical Field

[0001] This utility model relates to the field of roadbed testing technology, and in particular to a roadbed resilient modulus testing structure and deflection meter. Background Technology

[0002] A roadbed resilient modulus testing structure and deflectometer are devices used to determine the strength and elastic properties of road or railway subgrades. The resilient modulus is an important parameter for measuring the elastic strength of soil, and it can be tested using the rebound method. It is commonly used to analyze the bearing capacity and stability of roadbeds. The testing of the resilient modulus typically relies on a certain load and the displacement generated during measurement.

[0003] Patent document CN209508775U discloses a deflectometer with a vibration device, comprising: a deflectometer body, on which a vibration device is installed, the vibration device including a housing, a vibration motor, a switch, and a battery, the vibration motor being connected to both the battery and the switch, both being housed within a cavity structure of the housing, and the switch being mounted on the housing. This invention ensures real-time contact between the deflectometer and the dial gauge during testing, improving the accuracy of the deflectometer readings. It features a simple structure, reasonable design, small size, easy storage, and convenient operation.

[0004] However, existing roadbed resilient modulus testing structures and deflectometers are difficult to disassemble during use, are bulky and cause inconvenience in transportation and storage, and some detachable equipment is inefficient to assemble and disassemble, making it inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a roadbed resilient modulus testing structure and deflectometer, so as to solve the problems mentioned in the background art that the existing roadbed resilient modulus testing structure and deflectometer are difficult to disassemble during use, have a large size that makes transportation and storage inconvenient, and have low disassembly and assembly efficiency for some detachable equipment, making them inconvenient to use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a roadbed resilient modulus testing structure and deflection meter, comprising a beam frame one and a support plate. Three sets of positioning columns are inserted into one end of the beam frame one. A beam frame two is fixedly connected to one end of each positioning column. Support boxes are fixedly connected to both sides of one end of the beam frame two. Limiting components are slidably connected inside the support boxes. A bubble level is installed on the top of the support plate. Four sets of adjusting components are sleeved on the bottom of the support plate. The limiting components include a sliding plate slidably connected inside the support box. A supporting spring is fixedly connected to one end of the sliding plate, and two sets of locking blocks are fixedly connected inside the sliding plate. The adjusting components include a rubber sleeve sleeved on the bottom of the support plate. A threaded bolt is threadedly connected inside the rubber sleeve, and a base is rotatably connected to the bottom of the threaded bolt.

[0009] As a further embodiment of this utility model, a limiting post is inserted into one side of the support box, and a fixing seat is fixedly connected to one end of the limiting post. The fixing seat serves to support the limiting post.

[0010] As a further embodiment of this utility model, threaded holes are provided on the surfaces of both the fixing seat and the beam frame, and bolts pass through the interior of the threaded holes. The bolts facilitate the connection and installation of the fixing seat and the beam frame.

[0011] As a further embodiment of this utility model, a connecting rod is fixedly connected to one end of the second beam frame, and a ground contact rod is fixedly connected to one end of the connecting rod. The ground contact rod serves to prevent vibration from contacting the ground.

[0012] As a further embodiment of this utility model, a transmission rod is fixedly connected to the top of one end of the beam frame, and a rotating frame is rotatably connected inside one end of the beam frame. The rotating frame facilitates the rotation of the beam frame on the surface.

[0013] As a further embodiment of this utility model, both sides of the bottom of the rotating frame are threaded with support bolts, and the bottom of the support bolts is rotatably connected with rubber seats. The rubber seats reduce the transmission of ground vibration.

[0014] As a further embodiment of this utility model, a vertical rod is fixedly connected to the top of the support plate, and a horizontal adjustment rod is slidably connected to the surface of the vertical rod. A pressure gauge is provided at one end of the horizontal adjustment rod, which serves to detect the resilience modulus.

[0015] A deflectometer, comprising any of the above-mentioned roadbed resilient modulus testing structures.

[0016] (III) Beneficial Effects

[0017] This utility model provides a structure and deflectometer for detecting the resilient modulus of roadbed, which has the following beneficial effects:

[0018] 1. This roadbed resilient modulus testing structure and deflectometer, through the setting of the limiting component, allows for easy disassembly and assembly of beam frame one and beam frame two when the sliding plate is pressed, causing it to slide inside the support box. This compresses the support spring, causing it to contract under force. Consequently, the limiting post slides within the groove of the sliding plate and disengages from the surface of the locking block, thereby pulling beam frame one or beam frame two and pulling the limiting post out of the support box. This achieves the effect of convenient disassembly and assembly of beam frame one and beam frame two. After disassembly, the equipment size is reduced, making it easier to transport and store, especially suitable for field operation scenarios. It also improves disassembly and assembly efficiency and is convenient to use.

[0019] 2. This roadbed resilient modulus testing structure and deflectometer, through adjusting the settings of the components and bubble level, allows for the observation of whether the support plate is level during use. When the support plate is uneven, the corresponding threaded bolt is rotated, causing the bolt to rotate within the rubber sleeve and push the base. Simultaneously, the rubber sleeve compensates for part of the tilt angle, adjusting the angle of the support plate. This ensures that the pressure gauge remains level during testing on uneven roadbeds, avoiding measurement errors caused by uneven road surfaces and improving testing accuracy. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the adjustment component and bubble level of this utility model.

[0024] In the diagram: 1. Beam frame one; 2. Support plate; 3. Positioning column; 4. Beam frame two; 5. Support box; 6. Limiting component; 601. Slide plate; 602. Support spring; 603. Locking block; 7. Bubble level; 8. Adjusting component; 801. Rubber sleeve; 802. Threaded bolt; 803. Base; 9. Limiting column; 10. Fixing seat; 11. Bolt; 12. Connecting rod; 13. Ground contact rod; 14. Transmission rod; 15. Rotating frame; 16. Support bolt; 17. Rubber seat; 18. Upright pole; 19. Lateral adjustment rod; 20. Pressure gauge. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: a roadbed resilient modulus testing structure and deflection meter, including a beam frame 1 and a support plate 2. Three sets of positioning columns 3 are inserted into one end of the beam frame 1. A beam frame 4 is fixedly connected to one end of each positioning column 3. Support boxes 5 are fixedly connected to both sides of one end of the beam frame 4. A limiting column 9 is inserted into one side of the support box 5. A fixing seat 10 is fixedly connected to one end of each limiting column 9. The fixing seat 10 supports the limiting column 9. A limiting component 6 is slidably connected inside the support box 5. The limiting component 6 facilitates the easy disassembly and assembly of the beam frame 1 and beam frame 2. After disassembly, the equipment size is reduced, making it easier to transport and store, especially suitable for field operations. It also improves disassembly and assembly efficiency and facilitates use. A bubble level 7 is installed on the top of the support plate 2, and a... There are four sets of adjustment components 8. By adjusting the components 8 and the bubble level 7, the pressure gauge 20 is kept level during testing on uneven roadbeds, avoiding measurement errors caused by uneven road surfaces and improving testing accuracy. The limiting component 6 includes a sliding plate 601 that is slidably connected inside the support box 5. One end of the sliding plate 601 is fixedly connected to a support spring 602. Two sets of locking blocks 603 are fixedly connected inside the sliding plate 601. The adjustment component 8 includes a rubber sleeve 801 that is fitted onto the bottom of the support plate 2. A threaded bolt 802 is threadedly connected inside the rubber sleeve 801. A base 803 is rotatably connected to the bottom of the threaded bolt 802. A transmission rod 14 is fixedly connected to the top of one end of the beam frame 1. A rotating frame 15 is rotatably connected inside one end of the beam frame 1. The rotating frame 15 facilitates the rotation of the beam frame 1 on the surface.

[0027] Both the fixed base 10 and the beam frame 1 have threaded holes on their surfaces, and bolts 11 pass through the inside of the threaded holes. The bolts 11 facilitate the connection and installation of the fixed base 10 and the beam frame 1.

[0028] One end of beam frame 24 is fixedly connected to a connecting rod 12, and the other end of the connecting rod 12 is fixedly connected to a ground contact rod 13. The ground contact rod 13 serves to prevent vibration from contacting the ground.

[0029] Both sides of the bottom of the rotating frame 15 are threaded with support bolts 16, and the bottom of the support bolts 16 is rotatably connected with rubber seats 17. The rubber seats 17 are designed to reduce the transmission of ground vibration.

[0030] A vertical rod 18 is fixedly connected to the top of the support plate 2. A horizontal adjustment rod 19 is slidably connected to the surface of the vertical rod 18. A pressure gauge 20 is installed at one end of the horizontal adjustment rod 19. The pressure gauge 20 is used to detect the spring modulus.

[0031] A deflectometer, comprising a roadbed resilient modulus testing structure described in any of the above embodiments.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: When it is necessary to disassemble and assemble beam frame 1 and beam frame 2, press the sliding plate 601 to make the sliding plate 601 slide inside the support box 5, thereby squeezing the support spring 602, causing the support spring 602 to contract under force, thereby causing the limiting post 9 to slide in the groove inside the sliding plate 601 and disengage from the surface of the locking block 603, thereby pulling beam frame 1 or beam frame 2, causing the limiting post 9 to be pulled out from inside the support box 5;

[0034] The second step: When using it, observe whether the support plate 2 is in a horizontal position by using the bubble level 7. When the support plate 2 is not level, rotate the corresponding threaded bolt 802 so that the threaded bolt 802 rotates in the rubber sleeve 801 and pushes the base 803. At the same time, use the rubber sleeve 801 to compensate for part of the tilt angle and adjust the angle of the support plate 2.

[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] 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 roadbed resilient modulus testing structure, comprising a beam frame (1) and a support plate (2), characterized in that: Three sets of positioning columns (3) are inserted into one end of the beam frame one (1). One end of the positioning column (3) is fixedly connected to the beam frame two (4). Support boxes (5) are fixedly connected to both sides of one end of the beam frame two (4). Limiting components (6) are slidably connected inside the support box (5). A bubble level (7) is provided on the top of the support plate (2). Four sets of adjustment components (8) are sleeved on the bottom of the support plate (2). The limiting component (6) includes a sliding plate (601) slidably connected inside the support box (5), one end of the sliding plate (601) is fixedly connected to a support spring (602), and two sets of locking blocks (603) are fixedly connected inside the sliding plate (601). The adjustment assembly (8) includes a rubber sleeve (801) fitted onto the bottom of the support plate (2), the rubber sleeve (801) being threaded with a threaded bolt (802) inside, and a base (803) being rotatably connected to the bottom of the threaded bolt (802).

2. The roadbed resilient modulus detection structure according to claim 1, characterized in that: A limiting post (9) is inserted into one side of the support box (5), and a fixing seat (10) is fixedly connected to one end of the limiting post (9).

3. The roadbed resilient modulus detection structure according to claim 2, characterized in that: Both the fixed seat (10) and the beam frame (1) have threaded holes on their surfaces, and bolts (11) pass through the inside of the threaded holes.

4. The roadbed resilient modulus detection structure according to claim 1, characterized in that: One end of the beam frame 2 (4) is fixedly connected to a connecting rod (12), and one end of the connecting rod (12) is fixedly connected to a ground contact rod (13).

5. The roadbed resilient modulus detection structure according to claim 1, characterized in that: A transmission rod (14) is fixedly connected to the top of one end of the beam frame (1), and a rotating frame (15) is rotatably connected inside one end of the beam frame (1).

6. The roadbed resilient modulus detection structure according to claim 5, characterized in that: Both sides of the bottom of the rotating frame (15) are threaded with support bolts (16), and the bottom of the support bolts (16) is rotatably connected with rubber seats (17).

7. The roadbed resilient modulus detection structure according to claim 1, characterized in that: A vertical rod (18) is fixedly connected to the top of the support plate (2), and a horizontal adjustment rod (19) is slidably connected to the surface of the vertical rod (18). A pressure gauge (20) is provided at one end of the horizontal adjustment rod (19).

8. A deflectometer, characterized in that, Including a roadbed resilient modulus detection structure as described in any one of claims 1-7.

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