CN210315474U - Roadbed filler compactness detection device - Google Patents
Roadbed filler compactness detection device Download PDFInfo
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- CN210315474U CN210315474U CN201920294140.2U CN201920294140U CN210315474U CN 210315474 U CN210315474 U CN 210315474U CN 201920294140 U CN201920294140 U CN 201920294140U CN 210315474 U CN210315474 U CN 210315474U
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Abstract
The utility model discloses a roadbed filler compactness detection device, which solves the problems of complex structure, complex operation and time and labor waste of the test device in the existing detection method; a hydraulic cylinder (4) is fixedly arranged on the lower bottom surface of a top end plate (3) of the door-shaped frame (2), and the bottom end of an output shaft extending downwards from the hydraulic cylinder (4) is fixedly connected with the upper top surface of a piston type pressurizing plate (5); the device comprises a sealed detection box body (1), and is characterized in that an exhaust pipe (11) is arranged at the bottom end of the left side of the sealed detection box body (1), a vacuum pump (12) is connected to the outer side end of the exhaust pipe (11), a drain pipe (17) is arranged at the bottom end of the right side of the sealed detection box body, a water inlet pipe (13) is arranged at the top end of the right side of the sealed detection box body, a water inflow meter (15) and a water inlet valve (16) are respectively arranged on the water inlet pipe, and a roadbed sample. The utility model discloses simple structure, convenient operation, the detection accuracy is high.
Description
Technical Field
The utility model relates to a detection device is used in highway subgrade construction, in particular to carry out short-term test's device to the compactness of highway subgrade filler.
Background
In the construction, operation, maintenance and repair of the highway, the compaction quality of the roadbed and the pavement is an important detection index for reflecting the construction quality of road engineering, the strength, rigidity and flatness of the roadbed and the pavement can be ensured only by fully compacting the structure layers of the roadbed and the pavement, and further the service performance and service life of the roadbed and the pavement can be ensured, the higher the compaction degree of the highway is, the greater the compaction degree is, the better the overall performance of the material is, and the longer the service life of the highway is; therefore, the compaction degree of the highway is improved, the roadbed strength of the highway can be effectively enhanced, and the stability of the highway is improved, so that the accurate detection of the compaction degree of the highway is a very important work; when the roadbed compactness is detected, firstly, sampling the base layer of the highway by using a sampling device, and then testing the compactness of the sample of the base layer of the highway; the irrigation method detection of roadbed sampling is a testing method for compactness detection, but the existing detection method has the problems of complex structure of a testing device, complex operation and time and labor waste in testing operation.
Disclosure of Invention
The utility model provides a roadbed filler compactness detection device has solved current detection method and has had the testing arrangement structure complicacy, complex operation, the technical problem that test operation is wasted time and energy.
The utility model discloses a solve above technical problem through following technical scheme:
a roadbed filling compactness detection device comprises a closed detection box body, wherein a piston type pressure plate is arranged at the top end in the closed detection box body, a rubber sealing ring is arranged between the outer side surface of the piston type pressure plate and the inner side wall of the detection box body, a door-shaped frame is fixedly arranged on the top end surface of the closed detection box body, a hydraulic cylinder is fixedly arranged on the lower bottom surface of the top end plate of the door-shaped frame, and the bottom end of an output shaft extending downwards from the hydraulic cylinder is fixedly connected with the upper top surface of the piston type pressure plate; the device comprises an airtight detection box body, and is characterized in that an exhaust pipe is arranged at the bottom end of the left side of the airtight detection box body, a vacuum pump is connected to the outer side end of the exhaust pipe, a drain pipe is arranged at the bottom end of the right side of the airtight detection box body, a water inlet pipe is arranged at the top end of the right side of the airtight detection box body, a water storage tank is connected to the outer side end of the water inlet pipe, a water suction pump is arranged in the water storage tank, the water suction pump is communicated with the water inlet pipe, a water inflow meter and a water inlet valve are respectively arranged on the water inlet pipe, a drain tank is connected to the outer side end of the drain pipe, a drain valve is arranged.
Be provided with the guide bar on the board of top and pass the hole, the lower extreme of guide bar passes the guide bar and passes behind the hole and be in the same place with piston increased pressure board's last top fixed connection, is provided with the stopper in the upper end of guide bar, is provided with the scale on water drainage tank.
The utility model discloses simple structure, convenient operation, the detection accuracy is high, through simply clearly observing the change of water yield, can detect out fast whether qualified to the compactness of this sample that awaits measuring to accomplish the detection to sampling highway compactness, convenient and fast.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the external structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
a roadbed filling compactness detection device comprises a closed detection box body 1, wherein a piston type pressure plate 5 is arranged at the top end in the closed detection box body 1, a rubber sealing ring 21 is arranged between the outer side surface of the piston type pressure plate 5 and the inner side wall of the closed detection box body 1, a door-shaped frame 2 is fixedly arranged on the top end surface of the closed detection box body 1, a hydraulic cylinder 4 is fixedly arranged on the lower bottom surface of a top end plate 3 of the door-shaped frame 2, and the bottom end of an output shaft extending downwards from the hydraulic cylinder 4 is fixedly connected with the upper top surface of the piston type pressure plate 5; the device comprises a closed detection box body 1, and is characterized in that an exhaust pipe 11 is arranged at the bottom end of the left side of the closed detection box body 1, a vacuum pump 12 is connected to the outer side end of the exhaust pipe 11, a drain pipe 17 is arranged at the bottom end of the right side of the closed detection box body 1, a water inlet pipe 13 is arranged at the top end of the right side of the closed detection box body 1, a water storage tank 20 is connected to the outer side end of the water inlet pipe 13, a water suction pump 14 is arranged in the water storage tank 20, the water suction pump 14 is communicated with the water inlet pipe 13, a water inflow meter 15 and a water inlet valve 16 are respectively arranged on the water inlet pipe 13, a drain tank 18 is connected to the outer side end of the drain pipe 17, a drain valve 19 is arranged on the drain pipe 17.
A guide rod through hole is formed in the top end plate 3, the lower end of the guide rod 7 penetrates through the guide rod through hole and then is in threaded connection with a threaded hole 6 in the upper top surface of the piston type pressurizing plate 5, and a limiting block 8 is arranged at the upper end of the guide rod 7; during testing, the piston type pressure plate 5 moves downwards to drive the guide rod 7 to move downwards, and the limiting block 8 plays a role in preventing the top end of the guide rod 7 from entering the closed detection box body 1; the hydraulic cylinder 4 is generally positioned in the middle of the top end plate 3, and a guide rod 7 is arranged on one side of the top end plate 3 at two sides of the hydraulic cylinder 4; a graduated scale 22 is provided on the drainage box 18 to facilitate measurement of the amount of drainage.
When in test, firstly, the piston type pressure plate 5 is opened, the roadbed sample 10 to be tested is put into the closed detection box body 1, the roadbed sample 10 to be tested is pressed on the pressure sensor 9 on the bottom plate of the detection box body 1, the piston type pressure plate 5 is covered at the top end of the detection box body 1, the detection box body 1 is sealed, the vacuum pump 12 is opened to pump out air in the closed detection box body 1, then, the water inlet valve 16 and the water suction pump 14 are opened to fill water in the detection box body 1, the water inlet valve 16 is closed, the water quantity entering the detection box body 1 is measured through the water inlet quantity meter 15, the hydraulic cylinder 4 is started, the piston type pressure plate 5 is pushed down to the upper top surface of the roadbed sample 10 to be tested, meanwhile, the drain valve 19 is opened, redundant water enters the drain box 18 in the pushing down process of the piston type pressure plate 5, the pressure is reported for a period of time, and finally, the discharged water quantity is read according to the graduated scale, and (4) according to the difference between the water amount entering the detection box body 1 and the read discharged water amount measured by the water amount measuring device 15, obtaining the compactness of the roadbed sample 10 to be detected.
Claims (2)
1. A roadbed filler compactness detection device comprises a closed detection box body (1), wherein a piston type pressurizing plate (5) is arranged at the top end in the closed detection box body (1), and a rubber sealing ring (21) is arranged between the outer side surface of the piston type pressurizing plate (5) and the inner side wall of the closed detection box body (1), and is characterized in that a door-shaped frame (2) is fixedly arranged on the top end surface of the closed detection box body (1), a hydraulic cylinder (4) is fixedly arranged on the lower bottom surface of a top end plate (3) of the door-shaped frame (2), and the bottom end of an output shaft extending downwards from the hydraulic cylinder (4) is fixedly connected with the upper top surface of the piston type pressurizing plate (5); an exhaust pipe (11) is arranged at the bottom end of the left side of the closed detection box body (1), a vacuum pump (12) is connected with the outer side end of the exhaust pipe (11), a drain pipe (17) is arranged at the bottom end of the right side of the closed detection box body (1), a water inlet pipe (13) is arranged at the top end of the right side of the closed detection box body (1), the outer side end of the water inlet pipe (13) is connected with a water storage tank (20), a water suction pump (14) is arranged in the water storage tank (20), the water suction pump (14) is communicated with the water inlet pipe (13), a water inlet meter (15) and a water inlet valve (16) are respectively arranged on the water inlet pipe (13), a drain tank (18) is connected with the outer side end of the drain pipe (17), a drain valve (19) is arranged on the drain pipe (17), a roadbed sample (10) to be detected is placed in the closed detection box body (1), a pressure sensor (9) is arranged between the roadbed sample (10) to be detected and the bottom plate of the detection box body (1).
2. The roadbed filling compactness detection device is characterized in that a guide rod through hole is formed in the top end plate (3), the lower end of the guide rod (7) penetrates through the guide rod through hole and then is fixedly connected with the upper top surface of the piston type pressurizing plate (5), a limiting block (8) is arranged at the upper end of the guide rod (7), and a graduated scale (22) is arranged on the drainage box (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294140.2U CN210315474U (en) | 2019-03-08 | 2019-03-08 | Roadbed filler compactness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294140.2U CN210315474U (en) | 2019-03-08 | 2019-03-08 | Roadbed filler compactness detection device |
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| Publication Number | Publication Date |
|---|---|
| CN210315474U true CN210315474U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920294140.2U Active CN210315474U (en) | 2019-03-08 | 2019-03-08 | Roadbed filler compactness detection device |
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| CN (1) | CN210315474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504149A (en) * | 2021-07-22 | 2021-10-15 | 东南大学 | Micron-sized particle stacking compactness testing device and testing method thereof |
-
2019
- 2019-03-08 CN CN201920294140.2U patent/CN210315474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504149A (en) * | 2021-07-22 | 2021-10-15 | 东南大学 | Micron-sized particle stacking compactness testing device and testing method thereof |
| CN113504149B (en) * | 2021-07-22 | 2023-09-01 | 东南大学 | Micron-sized particle stacking compactness testing device and testing method thereof |
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