Road engineering roadbed compactness detection equipment
By designing the closed structure of the projection and insertion plate on the substrate of the roadbed compaction detection equipment of the highway engineering roadbed, combined with the automatic driving of the ring shell and the pulling rope, the problem of the open foundation hole in the center of the substrate being easily affected by the outside, achieving the accuracy of the detection results and the automation of insertion plate movement.
Patent Information
- Application Number
- CN202422386602.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-05-02
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing roadbed compaction detection equipment for highway engineering, the open foundation hole in the center of the substrate is easily affected by the external environment, resulting in inaccurate detection results.
A detection device including a sand filling cylinder and a substrate with a base hole in the center is designed. By fixing a protrusion at the edge of the substrate and setting a plurality of insert plates in the gap between the protrusion and the inner bottom of the sand filling cylinder, the insert plate can move toward the center to form a closed circle, and combine the design of the ring shell and the pulling rope to realize the automatic movement and closure of the insert plate.
It effectively isolates the sand measurement in the substrate from the external environment, avoids the influence of external factors, ensures the accuracy of the detection results, and realizes the automatic movement of the insert plate, improving the detection efficiency.
Smart Images
Figure CN222822225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway engineering, and more specifically to a highway engineering roadbed compaction detection device. Background Art
[0002] During the construction of highways, it is necessary to test the compaction of the roadbed. The compaction of the roadbed refers to the ratio of the dry density of the soil or other road construction materials after compaction to the standard maximum dry density. The compaction of the roadbed is mainly tested by water filling method and sand filling method. The sand filling method requires the use of a sand filling cylinder to replace the volume of the test hole with sand of uniform particles. The volume of the test hole is measured according to the principle that the unit weight of sand is constant, and then the measured dry density of the sample is calculated to obtain the compaction. The sand filling cylinder consists of a cylinder and a base plate. During the sand filling process, the test pit needs to be filled with sand. After filling, the excess sand on the upper surface of the pit needs to be removed. In this process, since the central base hole of the base plate is fixed and open, the sand on the upper surface of the test pit is easily affected by the external environment. For example, it is easy to be blown away by the wind in strong winds or the external soil is blown in and mixed with the sand on the upper surface. In view of this, we propose a roadbed compaction detection device for highway engineering. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the prior art, meet the actual needs, and provide a highway engineering roadbed compaction detection device to solve the technical problem that the open foundation hole in the center of the base plate is easily affected by the outside during the current detection.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a highway engineering roadbed compaction detection device, including a sand filling cylinder, a base plate with a foundation hole in the center is arranged below the sand filling cylinder, a protrusion is fixedly provided on the edge of the base plate, a plurality of plug plates are arranged in the gap between the protrusion and the bottom of the sand filling cylinder, and the plurality of plug plates move toward the center to form a closed circle, a pulling structure is arranged on the side of the plug plate, an annular shell is arranged above the center of the protrusion, and a tensioning structure is arranged inside the annular shell.
[0005] Preferably, the protrusion is a ring structure with an L-shaped cross-section, the plug plate is a fan-shaped structure and slides with the base plate in a limited manner, and the side of the plug plate close to the center of the circle is a pointed structure with a gradually decreasing thickness.
[0006] Preferably, the pulling structure includes at least one connecting plate and a spring, the connecting plate is fixed to the outer arc of the plug plate, two ends of the spring are respectively fixed to the base plate and the connecting plate, and the spring has a force to move the connecting plate away from the center of the base plate.
[0007] Preferably, the outer side of the annular shell is fixed by a bracket or a connecting rod, a motor is installed on the top of the annular shell, and the inner circumference of the annular shell is matched with the bottom of the sand filling cylinder.
[0008] Preferably, the tensioning structure includes a ring ring rotatably connected to the ring shell, the ring ring is adapted to the ring shell, multiple pulling ropes are connected to the outside of the ring ring, the pulling ropes pass through the protrusions and are fixed to the corresponding connecting plates, and the outer periphery of the ring ring is integrally formed with meshing teeth, and the meshing teeth are meshed with a driving gear.
[0009] Preferably, the driving gear center is rotatably connected to the ring housing, and the motor driving end is connected to the driving gear center via a coupling.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The utility model can isolate the part of the substrate in contact with the ground and prevent it from falling into the space inside the protrusions through the connection between the protrusions and the edge of the substrate and the limited sliding design of multiple plug-ins and the substrate, and the design of multiple plug-ins forming a closed circular structure and the design of matching the gap between the protrusions and the bottom of the sand filling tube with the thickness of the plug-ins, so as to achieve the closure of the central foundation hole and avoid the influence of external factors. At the same time, the measuring sand on the ground surface of the test pit can be smoothed and the excess measuring sand can be collected at one time, thereby solving the problem that the open foundation hole in the center of the substrate is easily affected by the outside during detection.
[0012] 2. The utility model also uses the movable connection design between the ring and the ring shell and the connection between the pulling rope on the outer periphery of the ring and the plug plate. Through the meshing of the meshing teeth and the driving gear and the rotational drive of the motor and the driving gear, the pulling rope can be driven to move, and the plug plate is pulled to close toward the center to achieve isolation of the sand filled in the test pit. Combined with the connection between the connecting plate and the outer arc of the plug plate and the elastic force of the spring, the plug plate has a force away from the center of the base plate. When combined with the return rotation of the driving gear, the plug plate can automatically return to its original position, achieving the automation effect of the plug plate movement, and further solving the automation problem of the plug plate movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of multiple plug boards of the utility model in a closed state;
[0014] Figure 2 It is a half-section structure schematic diagram of a plurality of plug boards of the utility model in a closed state;
[0015] Figure 3 It is a structural schematic diagram of multiple plug-in boards of the utility model in a separated state;
[0016] Figure 4 It is a schematic diagram of the connection between a plurality of plug boards of the utility model in a separated state and a pulling structure and a tightening structure.
[0017] Explanation of the numbers in the figure: 1. Sand filling cylinder; 2. Base plate; 3. Protrusion; 4. Insert plate; 5. Pull-away structure; 6. Ring shell; 7. Tension structure; 8. Motor;
[0018] 501, connecting plate; 502, spring;
[0019] 701, ring; 702, pulling rope; 703, meshing teeth; 704, driving gear. DETAILED DESCRIPTION
[0020] like Figures 1 to 4 As shown, the utility model relates to a highway engineering roadbed compaction detection equipment, including a sand filling cylinder 1, which is provided with a grab, a conical leak, a leak switch, etc. The sand filling cylinder 1 is the same as the existing technology, so it is not repeated here. A base plate 2 is arranged below the sand filling cylinder 1, and the base plate 2 has a foundation hole in the center, and the foundation hole is adapted to the inner diameter of the sand filling cylinder 1. A protrusion 3 is fixedly arranged on the edge of the base plate 2. The protrusion 3 has an L-shaped cross-section and a ring structure that rotates one circle. A plurality of plug plates 4 are arranged in the gap between the protrusion 3 and the bottom of the sand filling cylinder 1. The plug plates 4 are fan-shaped structures and slide with the base plate 2 in a limited position. The limited sliding is achieved by cooperating with a slider and a slide groove. A plurality of plug plates 4 move toward the center to form a closed circle. The closed circle can close and isolate the foundation hole, realize the closure of the central foundation hole, avoid the influence of external factors, and at the same time separate and take out the recyclable sand on the base plate 2 at one time. In order to facilitate the insertion and closure of the plug plates 4, the plug plates 4 are close to the center of the circle. The side of the plug plate 4 is a pointed structure with a gradually reduced thickness.
[0021] In the embodiment of the utility model, in order to improve convenience and automation, a pull-away structure 5 is provided on the side of the plug board 4. The pull-away structure 5 includes one or more connecting plates 501 and a spring 502. The present design adopts three. The connecting plate 501 is fixed to the outer arc of the plug board 4. The two ends of the spring 502 are respectively fixed on the base plate 2 and the connecting plate 501. The spring 502 has a force to make the connecting plate 501 away from the center of the base plate 2, so that when not subject to external force, the plug board 4 will not block the foundation hole;
[0022] An annular shell 6 is arranged above the center of the protrusion 3, and the outer side of the annular shell 6 is fixed by a bracket or a connecting rod. The inner circumference of the annular shell 6 is matched with the bottom of the sand filling tube 1, thereby being able to play an auxiliary positioning design when the sand filling tube 1 is placed. A tensioning structure 7 is arranged inside the annular shell 6, and the tensioning structure 7 includes a ring ring 701 rotatably connected to the annular shell 6, and the ring ring 701 is matched with the annular shell 6. A plurality of pulling ropes 702 are connected to the outer side of the ring ring 701, and the pulling ropes 702 pass through the protrusion 3 and are fixed to the corresponding connecting plate 501. A hole for the pulling rope 702 to pass through is opened on the protrusion 3, and a meshing tooth 703 is integrally formed on the outer circumference of the ring ring 701, and the meshing tooth 703 is meshed with a driving gear 704. A motor 8 is installed on the top of the annular shell 6, and the driving end of the motor 8 is connected to the center of the driving gear 704 through a coupling.
[0023] It should be noted that in order to ensure closure, the pull rope 702 has a certain elastic force, and cooperates with the limited sliding of the plug plate 4, where one end of the limit corresponds to the position where multiple plug plates 4 are completely in contact with the closure. Cooperating with the elastic force of the pull rope 702, after the ring 701 rotates to a certain position, due to the elastic force, it continues to rotate a certain angle, which can ensure that multiple plug plates 4 reach the closed position.
[0024] Working principle: This embodiment provides a roadbed compaction detection device for highway engineering. When in use, after positioning, dig out the soil in the test pit and remove the large rocks on one side (to facilitate subsequent restoration), place the base plate 2 at the test pit position, add the amount of sand inside the sand filling tube 1 and place it in the center of the base plate 2, open the leakage switch of the sand filling tube 1, let the sand fall, after the falling is completed, close the leakage switch, take out the sand filling tube 1, at this time, the central foundation hole of the base plate 2 needs to be closed to avoid external strong wind and other environmental influences, drive the motor 8 to work through the external control structure, drive the driving gear 704 to rotate, make the meshing teeth 703 rotate, further rotate the ring 701, pull the pull rope 702, so that the connection When the plate 501 moves, the spring 502 is compressed, further moving the multiple plug plates 4 toward the center. With the elastic force of the pulling rope 702 and the limited sliding of the plug plates 4, the multiple plug plates 4 are contacted and closed to form a complete circle, so that the sand in the test pit can be isolated and the ground surface of the test pit can be smoothed at the same time. The excess sand will be collected on the inner periphery of the base plate 2 at one time, and then the subsequent steps will be continued to weigh the remaining excess sand and the removed soil, and the removed soil will be weighed after drying. The compaction degree can be obtained according to the formula. When it is used again, the motor 8 needs to be driven again to drive the ring 701 to rotate in the opposite direction, and with the restoring force of the spring 502, the plug plates 4 will automatically return to their original positions.
[0025] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A roadbed compaction detection device for highway engineering, characterized in that: The invention comprises a sand filling cylinder (1), wherein a base plate (2) with a base hole in the center is arranged below the sand filling cylinder (1), a protrusion (3) is fixedly arranged on the edge of the base plate (2), a plurality of plug plates (4) are arranged in the gap between the protrusion (3) and the bottom of the sand filling cylinder (1), the plurality of plug plates (4) move toward the center to form a closed circle, a pull-off structure (5) is arranged on the side of the plug plates (4), a ring shell (6) is arranged above the center of the protrusion (3), and a tensioning structure (7) is arranged inside the ring shell (6).
2. A highway engineering roadbed compaction detection device according to claim 1, characterized in that: The protrusion (3) is a ring structure with an L-shaped cross section, the plug plate (4) is a fan-shaped structure and is limitedly slidable with the base plate (2), and the side of the plug plate (4) close to the center of the circle is a pointed structure with a gradually decreasing thickness.
3. A highway engineering roadbed compaction detection device according to claim 2, characterized in that: The pulling-away structure (5) comprises at least one connecting plate (501) and a spring (502); the connecting plate (501) is fixed to the outer arc of the plug plate (4); two ends of the spring (502) are respectively fixed on the base plate (2) and the connecting plate (501); and the spring (502) has a force that causes the connecting plate (501) to move away from the center of the base plate (2).
4. A highway engineering roadbed compaction detection device according to claim 3, characterized in that: The outer side of the annular shell (6) is fixed by a bracket or a connecting rod, a motor (8) is installed on the top of the annular shell (6), and the inner circumference of the annular shell (6) is matched with the bottom of the sand filling cylinder (1).
5. A highway engineering roadbed compaction detection device according to claim 4, characterized in that: The tensioning structure (7) comprises a ring (701) rotatably connected to the ring shell (6), the ring (701) being adapted to the ring shell (6), a plurality of pulling ropes (702) being connected to the outer side of the ring (701), the pulling ropes (702) passing through the protrusions (3) and being fixed to the corresponding connecting plates (501), and meshing teeth (703) being integrally formed on the outer circumference of the ring (701), the meshing teeth (703) being meshed with a driving gear (704).
6. A highway engineering roadbed compaction detection device according to claim 5, characterized in that: The center of the driving gear (704) is rotatably connected to the ring housing (6), and the driving end of the motor (8) is connected to the center of the driving gear (704) via a coupling.