CN-224213089-U - Road surface thickness detection device for highway engineering

CN224213089UCN 224213089 UCN224213089 UCN 224213089UCN-224213089-U

Abstract

The utility model relates to a pavement thickness detection device for highway engineering, which comprises a base, a first sleeve, a collar, a second sleeve, a handle, a drilling machine and a plurality of supporting spring groups, wherein the base comprises a bottom plate and a top plate, a radial flange I is formed at the upper end of the first sleeve, a plurality of through holes are formed in the radial flange I, the collar is sleeved outside the first sleeve, a radial flange II is formed in the middle of the second sleeve, a plurality of through holes which are vertically opposite to the through holes in the radial flange I are formed in the radial flange II, the outer wall of the radial flange II is provided with the handle, the drilling machine is fixedly connected with the second sleeve, a drill bit can penetrate out of the lower port of the first sleeve, the supporting spring groups comprise guide sliding rods and supporting springs which are matched one by one, the lower ends of the guide sliding rods are fixedly connected with the collar, nuts are arranged after the upper ends of the guide sliding rods penetrate through the through holes, and the supporting springs are sleeved on the guide sliding rods, and the two ends of the supporting springs are arranged between the two radial flanges. The utility model can control the perpendicularity of the drill bit relative to the road surface in a labor-saving manner, and can effectively inhibit the inclination degree of the drill bit.

Inventors

LI ZHENYU
HUANG HUAN
ZHAO YIMING

Assignees

山东道信检测技术有限公司

Dates

Publication Date: 20260508
Application Date: 20250714

Claims (5)

1. A road surface thickness detection device for highway engineering, characterized by comprising: The base comprises a bottom plate and a top plate which are arranged alternately up and down; A first sleeve, wherein a radial flange I is formed at the upper end of the sleeve body of the first sleeve, and a plurality of through holes which are arranged at intervals around the circumferential direction are formed on the radial flange I; the lantern ring is sleeved outside the sleeve body of the first sleeve; The second sleeve is provided with a radial flange II at the middle part of the cylinder body, and a plurality of through holes are arranged on the radial flange II, so that the through holes arranged on the radial flange II are opposite to the through holes arranged on the radial flange I one by one up and down; the drilling machine is fixedly connected with the second sleeve, and a drill bit arranged on the drilling machine can penetrate through the cylinder cavity of the first sleeve and extend outwards from the lower port; The support springs are sleeved on the guide slide rod, two ends of the support springs are respectively contacted with the upper end face of the radial flange I and the lower end face of the radial flange II, and the support springs can support the second sleeve, so that the lower end of a drill bit arranged on the drilling machine is relatively positioned above the bottom face of the base.
2. The road surface thickness measuring device for highway engineering according to claim 1, wherein a threaded through hole having an axis in a vertical direction is formed in a top plate of said base, and an external thread matching said threaded through hole is formed in an outer wall of a sleeve body of said first sleeve.
3. The road surface thickness measuring device for highway engineering according to claim 2, wherein the first radial flange has serrations formed on its outer peripheral surface and distributed circumferentially.
4. The road surface thickness measuring device for highway engineering according to claim 1, wherein a plurality of pedals are formed on the outer peripheral surface of said base plate and distributed on the left and right sides of the base plate.
5. The road surface thickness measuring device for highway engineering according to any one of claims 1 to 4, wherein a first electromagnet portion is fixedly provided on an upper end surface of a top plate of said base, and a second electromagnet portion or an iron ring portion is fixedly provided on a lower end surface of said collar.

Description

Road surface thickness detection device for highway engineering Technical Field The utility model relates to the technical field of highway engineering detection, in particular to a pavement thickness detection device for highway engineering. Background In road engineering construction, since the thickness of each layer of the road surface is closely related to the strength of the whole road, it is necessary to detect the thickness of the road surface to confirm whether the thickness of the road surface and the thickness of each layer meet the requirements. Therefore, in the construction process of highway engineering, the detection of the road surface thickness is an essential link for ensuring the quality of highway engineering. In the prior art, a common method for detecting the thickness of a road surface is a core drilling method. The pavement thickness detection device comprises a stand column and a drilling machine, and the drilling machine is matched with the stand column through a screw transmission mechanism. During operation, the hand wheel is rotated to drive the drilling machine to ascend and descend along the screw rod relative to the upright post, so that the drill bit arranged on the drilling machine can move upwards near the road surface and relative to the road surface. The main defects are that because the drilling machine is heavy, when the hand upright post is operated to keep the axial lead of the drilling machine in a vertical state, the labor intensity is high, meanwhile, the drilling machine is affected by machine vibration after being screwed into the road surface, the operation of supporting the drilling machine in a vertical state is difficult, the perpendicularity of the drilling machine in the process of being screwed into the road surface is not easy to be ensured, large inclination is easy to occur, and the detection error of the thickness of the road surface is large. Disclosure of utility model Aiming at the problems that the conventional pavement thickness detection device has high labor intensity in operation and the drill bit is easy to incline relatively to the pavement, the utility model provides the pavement thickness detection device for highway engineering, which can save labor in operation and control the perpendicularity of the drill bit relatively to the ground relatively easily, can effectively inhibit the inclination degree of the drill bit and is beneficial to reducing the detection error of the pavement thickness. The technical scheme adopted by the utility model for solving the technical problems is that the pavement thickness detection device for highway engineering comprises: The base comprises a bottom plate and a top plate which are arranged alternately up and down, and a threaded through hole is formed on the top plate; The sleeve comprises a sleeve body, a first sleeve, a plurality of through holes, a first sleeve, a second sleeve, a first sleeve and a second sleeve, wherein external threads matched with the threaded through holes are formed on the outer wall of the sleeve body; The sleeve ring is sleeved outside the sleeve body of the first sleeve, so that the sleeve ring can move up and down relative to the sleeve body of the first sleeve, and is switched to be close to and far away from the radial flange I; The drilling machine comprises a first sleeve, a second sleeve, a drilling machine, a first sleeve, a second sleeve, a first sleeve and a second sleeve, wherein a radial flange II is formed in the middle of the cylinder body, a plurality of through holes are formed in the radial flange II, and the through holes in the radial flange II and the through holes in the radial flange I can be in one-to-one correspondence up and down; The plurality of support spring groups comprise guide slide bars and support springs matched with the guide slide bars in a one-to-one correspondence manner, the lower ends of the guide slide bars are fixedly connected with the lantern rings, the upper ends of the guide slide bars sequentially penetrate through the through holes in the radial flange I and the radial flange II and then are matched with the nuts, and the support springs are sleeved on the guide slide bars, and the two ends of the support springs are respectively contacted with the upper end face of the radial flange I and the lower end face of the radial flange II. In an initial state, the plurality of supporting springs can support the second sleeve, so that the drilling machine is kept at the uppermost position relative to the base, the lower end of the drill bit mounted on the drilling machine is located at a position near the lower port of the first sleeve, and after the whole device is placed on a road surface, a vertical distance can be kept between the lower end face of the drill bit and the road surface. When the first sleeve is matched with the threaded through hole on the base through the external threads arranged on the outer wall of the first slee