Municipal engineering roadbed compactness detection device

Abstract

The utility model discloses a municipal engineering roadbed compaction degree detection device which comprises a bottom plate, a sleeve is movably installed in the bottom plate and penetrates through the interior of the bottom plate, telescopic rods are fixedly installed on the lower end face of the bottom plate and located on the two sides of the sleeve, and connecting rods are fixedly installed between the telescopic rods and the sleeve. The auxiliary detection device is arranged, the detection device is pushed to the roadbed detection position, the position of a drilled test hole is determined, the outer sleeve at the upper end of the device is driven by the telescopic rods on the two sides to move downwards to make contact with the roadbed, and the drilling machine at the upper end is driven by the screws on the two sides to move downwards. Meanwhile, the drilling machine rotates to drill a test hole in the roadbed, after the test hole is drilled, the pushing device moves forwards, a sand discharging opening in the bottom end of the sand box is aligned with the test hole, sand is guided into the test hole through the sand discharging opening, a meter is installed at the sand discharging opening, the amount of leaked sand is recorded, overall operation is easy and convenient, manual drilling of the test hole is not needed, and the working efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of municipal road testing equipment, specifically a municipal engineering roadbed compaction testing device. Background Technology

[0002] Subgrade compaction degree is one of the key indicators for inspecting the construction quality of subgrade and pavement. It characterizes the density after on-site compaction; the higher the compaction degree, the greater the density, and the better the overall material performance. For subgrades, semi-rigid base courses, and granular flexible base courses, compaction degree refers to the ratio of the actual dry density achieved on-site to the maximum dry density obtained from indoor standard compaction tests. For asphalt surface courses and asphalt stabilized base courses, compaction degree refers to the ratio of the density achieved on-site to the indoor standard density. Therefore, the determination of subgrade compaction degree mainly includes the determination of indoor standard density (maximum dry density) and on-site density tests.

[0003] The existing methods for testing the compaction of roadbeds mostly use the sand-filling method. This involves drilling test holes in the roadbed and then letting clean, uniform sand fall freely into the test holes from a certain height. The volume of the test holes is then measured based on the principle that the unit weight remains constant. The sand-filling method requires manual drilling of test holes, which increases the workload and has low efficiency. Utility Model Content

[0004] In order to overcome the problems of increased labor and low work efficiency in the existing technology of manual drilling for test holes, this utility model provides a municipal engineering roadbed compaction testing device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a municipal engineering roadbed compaction degree testing device, including a base plate, a sleeve movably installed inside the base plate and penetrating through the interior of the base plate, a telescopic rod fixedly installed on the lower end face of the base plate and located on both sides of the sleeve, a connecting rod fixedly installed between the telescopic rod and the sleeve, a bearing plate movably installed at the top of the sleeve, a first motor fixedly installed on the upper end face of the bearing plate, the output end of the first motor penetrating through the interior of the bearing plate, screws movably installed inside both sides of the bearing plate, a second motor embedded inside the base plate, and a transmission belt movably installed between the second motor and the screws.

[0006] The aforementioned municipal engineering roadbed compaction testing device has a running chamber fixedly installed on the upper end of the base plate, a heat dissipation vent fixedly opened at the top of the running chamber, and running wheels fixedly installed at the four corners of the lower end of the base plate.

[0007] The aforementioned municipal engineering roadbed compaction testing device has a blower fixedly installed on the lower end face of the base plate and a blower fixedly installed on the upper end of the base plate. The blower and the blower are fixedly connected by a connecting pipe.

[0008] The aforementioned municipal engineering roadbed compaction testing device has a sand box fixedly installed on the upper end of the base plate, a sand filling port opened at the top of the sand box, a control panel fixedly installed on the side of the sand box, a push handle fixedly connected to one end of the base plate, a sand discharge port fixedly installed at the lower end of the base plate, the sand discharge port being connected to the sand box, and a meter fixedly installed on the side of the sand discharge port.

[0009] The aforementioned municipal engineering roadbed compaction testing device has brackets symmetrically installed on the upper end of the base plate, and the top end of the screw passes through the top end of the bracket and is connected by threaded transmission.

[0010] The aforementioned municipal engineering roadbed compaction testing device includes a drill bit fixedly connected to the output end of the first motor, a first transmission ring fixedly installed at the output end of the second motor, a second transmission ring fixedly installed at the lower end of the screw, and a transmission belt movably installed between the first and second transmission rings.

[0011] In the aforementioned municipal engineering roadbed compaction testing device, a base is fixedly installed on the upper surface of the base plate, and the bottom end of the screw is movably installed inside the base.

[0012] This utility model provides a device for detecting the compaction degree of roadbed in municipal engineering, which has the following beneficial effects:

[0013] This invention utilizes an auxiliary detection device. At the start of the detection operation, the device is moved to the roadbed location to determine the position for drilling test holes. An exhaust pipe at the bottom of the device clears away other materials from the roadbed, increasing accuracy during drilling. The upper outer sleeve of the device moves downwards under the influence of telescopic rods on both sides to contact the roadbed. Simultaneously, the drilling machine at the upper end rotates under the influence of screws on both sides to drill test holes in the roadbed. After drilling, the device is moved forward, aligning the sand inlet at the bottom of the sand box with the test hole. Sand is then introduced into the test hole through the sand inlet. A meter is installed at the sand inlet to record the amount of sand leaking out. The entire device is simple and convenient to operate, eliminating the need for manual drilling and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a municipal engineering roadbed compaction degree testing device;

[0015] Figure 2 This is a three-dimensional structural diagram of a municipal engineering roadbed compaction degree testing device;

[0016] Figure 3 This invention relates to a utility model for a roadbed compaction testing device for municipal engineering projects. Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the bottom structure of a municipal engineering roadbed compaction testing device.

[0018] In the diagram: 1. Base plate; 2. Running chamber; 3. Heat dissipation vent; 4. Running wheel; 5. Blow pipe; 6. Sand box; 7. Sand filling port; 8. Control panel; 9. Push handle; 10. Fan; 11. Bracket; 12. Bearing plate; 13. Screw; 14. First motor; 15. Second motor; 16. First transmission ring; 17. Transmission belt; 18. Sleeve; 19. Second transmission ring; 20. Base; 21. Drill bit; 22. Telescopic rod; 23. Connecting rod; 24. Sand filling port; 25. Meter. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a solution: a municipal engineering roadbed compaction testing device, including a base plate 1, which serves as a load-bearing component. All internal components of the load-bearing device are supported. A sleeve 18 is movably installed inside the base plate 1, penetrating the interior of the base plate 1. The sleeve 18 provides a protective and guiding function, effectively reducing the impact of the external environment on drilling during test holes. A telescopic rod 22 is fixedly installed on the lower end face of the base plate 1, located on both sides of the sleeve 18. A connecting rod 22 is fixedly installed between the telescopic rod 22 and the sleeve 18. The telescopic rod 23's extension and retraction movement drives the sleeve 18 to move up and down. A bearing plate 12 is movably installed at the top of the sleeve 18. A first motor 14 is fixedly installed on the upper end face of the bearing plate 12 for power transmission. The output of the first motor 14 drives the drill bit 21 at the output end to rotate. The output end of the first motor 14 passes through the interior of the support plate 12. The first motor 14 is fixedly installed on the upper end of the support plate 12. A through hole is opened inside the support plate 12, and the output end passes through the interior of the through hole. Screws 13 are movably installed inside both sides of the support plate 12. The two sides of the support plate 12 and the screws 13 are movably connected by threads. When the screws 13 rotate, they drive the support plate 12 to move up and down under the action of the threads, thereby driving the first motor 14 to move up and down. A second motor 15 is embedded in the interior of the base plate 1. A transmission belt 17 is movably installed between the second motor 15 and the screws 13. The second motor 15 outputs power and drives the screws 13 to rotate through the transmission belt 17.

[0021] In this embodiment, a running chamber 2 is fixedly installed on the upper end of the base plate 1 to protect the internal running components. A heat dissipation vent 3 is fixedly opened at the top of the running chamber 2, as the components generate considerable heat during operation, which needs to be dissipated through the vent 3. Running wheels 4 are fixedly installed at the four corners of the lower end of the base plate 1 to facilitate the movement of the entire base plate 1. A blower pipe 5 is fixedly installed on the lower surface of the base plate 1, and a blower 10 is fixedly installed on the upper end of the base plate 1. The blower pipe 5 and the blower 10 are fixedly connected via a connecting pipe. The blower 10 delivers high-pressure air through the connecting pipe, which is then blown out through the blower pipe 5 to clear the roadbed area to be drilled. A sand box 6 is fixedly installed on the upper end of the plate 1, which stores uniform sand inside. A sand filling port 7 is opened at the top of the sand box 6 to facilitate the addition of uniform sand inside. A control panel 8 is fixedly installed on the side of the sand box 6 to record the amount of sand inside in real time. A push handle 9 is fixedly connected to one end of the base plate 1 to facilitate manual pushing of the entire base plate 1. A sand outlet 24 is fixedly installed at the lower end of the base plate 1, and the sand outlet 24 is connected to the sand box 6. A meter 25 is fixedly installed on the side of the sand outlet 24 to add sand into the test hole. The detection end of the meter 25 is embedded inside the sand outlet 24 to record the amount of sand leaking out.

[0022] In this embodiment, brackets 11 are symmetrically installed on the upper end of the base plate 1. The top end of the screw 13 passes through the top end of the bracket 11 and is connected by a threaded drive to stabilize the screw 13 and increase its stability during rotation. A drill bit 21 is fixedly connected to the output end of the first motor 14 for drilling test holes. A first transmission ring 16 is fixedly installed on the output end of the second motor 15, and a second transmission ring 19 is fixedly installed on the lower end of the screw 13. A transmission belt 17 is movably installed between the first transmission ring 16 and the second transmission ring 19, and they are linked together. When the second motor 15 rotates, the screw 13 is driven to rotate through the transmission belt 17. A base 20 is fixedly installed on the upper surface of the base plate 1, and the bottom end of the screw 13 is movably installed inside the base 20. The base 20 and the bracket 11 support the screw 13, making the screw 13 more stable during rotation.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting the compaction degree of roadbed in municipal engineering, comprising a base plate (1), characterized in that: A sleeve (18) is movably installed inside the base plate (1), and the sleeve (18) passes through the interior of the base plate (1). A telescopic rod (22) is fixedly installed on the lower end face of the base plate (1) and located on both sides of the sleeve (18). A connecting rod (23) is fixedly installed between the telescopic rod (22) and the sleeve (18). A bearing plate (12) is movably installed at the top of the sleeve (18). A first motor (14) is fixedly installed on the upper end face of the bearing plate (12). The output end of the first motor (14) passes through the interior of the bearing plate (12). Screws (13) are movably installed inside both sides of the bearing plate (12). A second motor (15) is embedded inside the base plate (1). A transmission belt (17) is movably installed between the second motor (15) and the screws (13).

2. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly installed with a running chamber (2), the top of the running chamber (2) is fixedly provided with a heat dissipation vent (3), and the four corners of the lower end of the base plate (1) are fixedly installed with running wheels (4).

3. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: A blowpipe (5) is fixedly installed on the lower end face of the base plate (1), and a fan (10) is fixedly installed on the upper end of the base plate (1). The blowpipe (5) and the fan (10) are fixedly connected by a connecting pipe.

4. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: A sand box (6) is fixedly installed on the upper end of the base plate (1). A sand filling port (7) is opened at the top of the sand box (6). A control panel (8) is fixedly installed on the side of the sand box (6). A push handle (9) is fixedly connected to one end of the base plate (1). A sand lowering port (24) is fixedly installed at the lower end of the base plate (1). The sand lowering port (24) is connected to the sand box (6). A meter (25) is fixedly installed on the side of the sand lowering port (24).

5. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: The upper end of the base plate (1) is symmetrically equipped with brackets (11), and the top end of the screw (13) passes through the top end of the bracket (11) and is connected by threaded transmission.

6. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: A drill bit (21) is fixedly connected to the output end of the first motor (14), a first transmission ring (16) is fixedly installed at the output end of the second motor (15), a second transmission ring (19) is fixedly installed at the lower end of the screw (13), and a transmission belt (17) is movably installed between the first transmission ring (16) and the second transmission ring (19).

7. The municipal engineering roadbed compaction testing device according to claim 1, characterized in that: A base (20) is fixedly installed on the upper surface of the base plate (1), and the bottom end of the screw (13) is movably installed inside the base (20).

Images