CN211036642U - Integrated deflectometer base for testing roadbed pavement resilience and deflection - Google Patents
Integrated deflectometer base for testing roadbed pavement resilience and deflection Download PDFInfo
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- CN211036642U CN211036642U CN201921516342.3U CN201921516342U CN211036642U CN 211036642 U CN211036642 U CN 211036642U CN 201921516342 U CN201921516342 U CN 201921516342U CN 211036642 U CN211036642 U CN 211036642U
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Abstract
The utility model provides a survey road bed road surface resilience deflectometer base for test, its characterized in that: the side surface of the base connecting device is provided with a supporting leg mounting hole; the bottom surface of each support leg is provided with a connecting hole, the bottom surface of each support leg is provided with a clamping groove at one side of the connecting hole, the other side of each support leg at the connecting hole is provided with an end surface vertical to the bottom surface, the end surface is provided with a raised clamping pin, and the diameter of the clamping groove is larger than that of the clamping pin; each side surface of the base connecting device is provided with a support leg, a screw rod of a bolt penetrates through the connecting hole and the support leg mounting hole and then is screwed with the cover-shaped nut, and a clamping leg of each support leg is matched with a clamping groove of the adjacent support leg; the top surface of the base connecting device is fixedly connected with a top cover, the top cover is provided with a level bubble, the top cover is fixedly connected with a vertical rod, and the vertical rod is provided with a top groove. The field detection process for determining the roadbed pavement rebound deflection test is simpler, quicker and more accurate.
Description
Technical Field
The utility model relates to a municipal works detects the field, especially relates to the invention and relates to the deflectometer base in the detection of on-the-spot road surface resilience deflection.
Background
The Beckman beam test method is mainly used for measuring the rebound deflection of various roadbed pavements so as to evaluate the integral bearing capacity of the roadbed pavements, and can also be used for pavement structure design. The rebound deflection refers to a vertical rebound deformation value generated at wheel gaps of a roadbed and a road surface under the action of specified standard axle load, the road surface forms local subsidence (namely vertical deformation) under the action of load, and the shape reflected by the road surface takes a basin shape with a load point as a center, and is called as a deflection basin. When the load is removed, the elasticity restores the road surface to the original shape, the deflection basin disappears, and the difference value before and after the load is called the deflection value.
The road surface deflectometer is made by lever principle and is composed of front lever, back lever, base, dial indicator and support. The front lever and the rear lever are connected by an M12 bolt, and the lever and the base are connected by a radial ball bearing. The base of the deflectometer used in the market at present is made of iron or aluminum, and is structured into three support legs, each support leg is provided with a leveling screw, and the base is provided with a leveling device (leveling bubble). When the deflectometer is moved to a measuring point every time during the test, the deflectometer is required to be lifted every time due to the uneven ground, and then the leveling screws of the supporting feet are manually adjusted until the leveling bubble on the base is in a horizontal state. In the process, a tester needs to spend a certain time on screwing the leveling screws of the three support legs by hands, and the base can be balanced only by repeatedly adjusting the three support legs frequently due to uneven ground of a measuring point. This operation is cumbersome, awkward and may cause some errors. In order to make the measurement easier, faster and more accurate in the field test process, it is very necessary to research and manufacture a set of applicable integrated deflectometer base.
SUMMERY OF THE UTILITY MODEL
The utility model provides a survey integral type deflectometer base for roadbed pavement resilience deflection test, the shortcoming of prior art is solved to its purpose, makes survey roadbed pavement resilience deflection test's witnessed inspections process simple and easy more, quick and accurate.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a survey road bed road surface resilience deflectometer base for test which characterized in that:
the device comprises a square base connecting device, wherein each side surface of the base connecting device is provided with a supporting leg mounting hole;
the support leg is provided with a support leg, the bottom surface of the support leg is provided with a connecting hole, the bottom surface of the support leg is provided with a clamping groove on one side of the connecting hole, the other side of the support leg on the connecting hole is provided with an end surface vertical to the bottom surface, the end surface is provided with a raised clamping leg, and the diameter of the clamping groove is larger than that of the clamping leg;
the diameter of the connecting hole and the diameter of the supporting leg mounting hole are both larger than the diameter of a screw rod of the bolt, and the length of the screw rod of the bolt is larger than the sum of the depth of the cover-shaped nut, the thickness of the bottom surface of the supporting leg and the thickness of the side surface of the base connecting device;
each side surface of the base connecting device is provided with a support leg, a screw rod of a bolt penetrates through the connecting hole and the support leg mounting hole and then is screwed with the cover-shaped nut, and a clamping leg of each support leg is matched with a clamping groove of the adjacent support leg;
the top surface of the base connecting device is fixedly connected with a top cover, the top cover is provided with a level bubble, the top cover is fixedly connected with a vertical rod, and the vertical rod is provided with a top groove.
The top surface of the base connecting device is provided with a vertical rod penetrating mounting hole, and a screw rod with a downward top cover penetrates through the vertical rod penetrating mounting hole of the base and then is screwed with a nut.
The utility model discloses an useful part lies in:
the utility model discloses integral type deflectometer base makes the unevenness on stabilizer blade ability self-adaptation ground, and automatically regulated level is low, when four stabilizer blades do not have the load, because between each stabilizer blade and the vertical pole top cap and have the space each other, at this moment they can be loose agree with together. When the deflectometer is dropped on the flat ground, the support legs can be tightly embraced with each other to form a stable base, when the deflectometer is dropped on the uneven ground, the support legs can be adjusted, each support leg can change the angle, and finally the most stable angle is adjusted, so that the deflectometer can not shake and is in a horizontal state.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic view of a single stand bar of the present invention;
FIG. 2 is a bottom view of the base structure of the present invention;
FIG. 3 is a schematic view of the combination of the base and the supporting legs of the present invention;
fig. 4 is a schematic view of the hexagon bolt of the present invention;
FIG. 5 is a schematic view of the cap nut of the present invention;
FIG. 6 is a top view of the base structure of the present invention;
FIG. 7 is a schematic view of the top cover and vertical rod of the present invention;
FIG. 8 is a schematic view of the integrated base of the present invention;
fig. 9 is a schematic view of the inventive beckman beam deflectometer.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor.
The utility model discloses change the original structure of three stabilizer blades of prior art base, process one set of integral type base, form by combinations such as four stabilizer blades 1, purpose-made cap nut 32 and bolt 31, base connecting device 2, air level 6, top cap 4 and vertical pole 5.
As shown in fig. 1:
the supporting leg 1 is made of aluminum alloy, a connecting hole 11 is arranged in the middle of the bottom surface 10 of the supporting leg, a clamping groove 12 is arranged on the bottom surface 10 of the supporting leg close to the right side, a end surface 14 perpendicular to the bottom surface 10 of the supporting leg is arranged at the left end of the bottom surface 10 of the supporting leg, the end surface 14 is provided with a raised clamping leg 13, namely, the clamping groove 12 and the clamping leg 13 are respectively arranged on two sides of the connecting hole 11 (the left side and the right side.
The diameter of the clamping groove 12 is larger than that of the clamping leg 13. The diameter of the clamping leg 13 is approximately 4mm, and the diameter of the clamping groove 12 is approximately 8 mm. The clamping leg 13 of each support leg 1 is inserted into the clamping groove 12 of the adjacent support leg 1 and is matched with the clamping groove 12 of the adjacent support leg 1, and the connecting hole 11 at the bottom surface 10 of each support leg is connected and combined with the base connecting device 2 through a cover-shaped nut 32 and a bolt 31.
As shown in fig. 2, 3, and 6:
the base connecting device 2 is made of high-strength PVC material, is square, and has a top surface 21 and four side surfaces 22, wherein a vertical rod penetrating mounting hole 23 is formed in the center of the top surface 21, supporting foot mounting holes 20 are formed in the four side surfaces 22 respectively, and bolts 31 are connected and combined by using cap-shaped nuts 32 after penetrating through the connecting holes 11 of the supporting foot bottom surfaces 10 and the supporting foot mounting holes 20 of the side surfaces 22 of the base connecting device 2.
As shown in fig. 4 and 5:
the cap nut 32 and the bolt 31 are made of carbon steel and have dimensions matching the thickness of the leg bottom 10 and the leg attachment hole 11 of the leg bottom 10 and the thickness of the side 22 and the leg attachment hole 20 of the side 22 of the base attachment device 2. The diameter of the connection hole 11 of the bottom 10 of the leg and the diameter of the leg mounting hole 20 of the base connection device 2 are both larger than the diameter of the screw of the bolt 31, and the length of the screw of the bolt 31 is larger than the sum of the depth of the cap nut 32, the thickness of the bottom 10 of the leg and the thickness of the side 22 of the base connection device 2, so that the length of the bolt 31 passing through the connection hole 11 of the bottom 10 of the leg and the leg mounting hole 20 of the side 22 of the base connection device 2 is slightly longer than the depth of the cap nut 32, and then the small part of the bolt 31 which is not screwed is mainly convenient for the leg 1 to move after the cap nut 32 is screwed.
As shown in fig. 7 and 8:
the top cap 4 and the vertical rod 5 are made of aluminum alloy, the vertical rod 5 has a top groove 51, and the top cap 4 is provided with a level bubble 6. The top cover 4 has a downward screw rod 41, and the screw rod 41 passes through the vertical rod through mounting hole 23 of the top surface 21 of the base connecting device 2 and then is screwed with a nut to be connected and combined with the base connecting device 2.
The operation process is as follows:
as shown in fig. 9
The first step is as follows: four base feet 1 are mounted on four sides 22 of the base connecting device 2 by means of cap nuts 32 and bolts 31, and the clamping feet 13 of a foot 1 are inserted into the clamping grooves 12 of the adjacent feet 1, and because a gap is left between the foot 1 and the base connecting device 2 and between the adjacent feet 1, the four feet 1 are loosely fitted together when the four feet 1 are suspended without a load. When the adjustable support leg is placed on uneven ground, the support legs 1 can be adjusted, and the angle of each support leg 1 can be changed and finally adjusted to the most stable angle. The deflectometer 7 is mounted in the top recess 51 of the vertical pole 5.
The second step is that: and selecting a measuring point, inserting the deflectometer 7 into a gap between rear wheels of the automobile, and automatically adjusting the feet 1 of the modified deflectometer base to be in a balanced state when contacting with uneven road surfaces.
The third step: and observing the position of the level bubble 6 on the top cover 4 to verify whether the deflectometer is in a balanced state.
The fourth step: and (5) starting detection after the dial indicator is installed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. The utility model provides a survey road bed road surface resilience deflectometer base for test which characterized in that: the device comprises a square base connecting device, wherein each side surface of the base connecting device is provided with a supporting leg mounting hole; the support leg is provided with a support leg, the bottom surface of the support leg is provided with a connecting hole, the bottom surface of the support leg is provided with a clamping groove on one side of the connecting hole, the other side of the support leg on the connecting hole is provided with an end surface vertical to the bottom surface, the end surface is provided with a raised clamping leg, and the diameter of the clamping groove is larger than that of the clamping leg; the diameter of the connecting hole and the diameter of the supporting leg mounting hole are both larger than the diameter of a screw rod of the bolt, and the length of the screw rod of the bolt is larger than the sum of the depth of the cover-shaped nut, the thickness of the bottom surface of the supporting leg and the thickness of the side surface of the base connecting device; each side surface of the base connecting device is provided with a support leg, a screw rod of a bolt penetrates through the connecting hole and the support leg mounting hole and then is screwed with the cover-shaped nut, and a clamping leg of each support leg is matched with a clamping groove of the adjacent support leg; the top surface of the base connecting device is fixedly connected with a top cover, the top cover is provided with a level bubble, the top cover is fixedly connected with a vertical rod, and the vertical rod is provided with a top groove.
2. The integrated deflectometer base for the test of determining the rebound deflection of a roadbed pavement according to claim 1, wherein: the top surface of the base connecting device is provided with a vertical rod penetrating mounting hole, and a screw rod with a downward top cover penetrates through the vertical rod penetrating mounting hole of the base and then is screwed with a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516342.3U CN211036642U (en) | 2019-09-12 | 2019-09-12 | Integrated deflectometer base for testing roadbed pavement resilience and deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516342.3U CN211036642U (en) | 2019-09-12 | 2019-09-12 | Integrated deflectometer base for testing roadbed pavement resilience and deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211036642U true CN211036642U (en) | 2020-07-17 |
Family
ID=71560113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921516342.3U Active CN211036642U (en) | 2019-09-12 | 2019-09-12 | Integrated deflectometer base for testing roadbed pavement resilience and deflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211036642U (en) |
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2019
- 2019-09-12 CN CN201921516342.3U patent/CN211036642U/en active Active
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