CN211143039U

CN211143039U - Multi-cutter-head drilling and digging head for detecting compaction degree of highway subgrade

Info

Publication number: CN211143039U
Application number: CN201921790606.4U
Authority: CN
Inventors: 韩幼红; 谢燕楠; 王勇
Original assignee: Guizhou Jiaozi Engineering Testing Co Ltd
Current assignee: Guizhou Jiaozi Engineering Testing Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-07-31
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a multitool head bores and digs head for detecting highway subgrade compactness relates to road bed and detects technical field, including the connection pad, the bottom fixedly connected with shaft coupling of connection pad, the bottom fixedly connected with sleeve of shaft coupling, the bottom fixedly connected with connecting rod of shaft coupling, the bottom fixedly connected with square groove of connecting rod. The multi-cutter-head drilling and excavating head for detecting the compaction degree of the highway subgrade can drill a square hole through the matching arrangement of the connecting rod, the sleeve, the square groove, the pointed end, the notch, the drill bit and the cutter head, is more convenient to measure, and can effectively support the square groove to level the inner wall of the hole, so that the problem that the existing hole is irregular in shape and inconvenient to detect is solved; through the cooperation setting of sleeve, square groove, scale, can make the user have clear understanding to the drilling degree of depth, the measurement of being more convenient for, the scale that does not wear and tear simultaneously has solved the current condition that the drilling degree of depth shows not directly perceived, the scale easily wears and teares.

Description

Multi-cutter-head drilling and digging head for detecting compaction degree of highway subgrade

Technical Field

The utility model relates to a road bed detects technical field, specifically is a multitool head bores and digs head for detecting highway road bed compactness.

Background

For roadbed, semi-rigid base course of road surface and flexible base course of granular material, the compactness is the ratio of dry density actually reached in construction site to the maximum dry density obtained by indoor standard compaction experiment; for asphalt surface course and asphalt stabilized base course, the degree of compaction is the ratio of the density achieved on site to the indoor standard density. Therefore, the determination of the compactness of the roadbed mainly comprises the determination of indoor standard density (maximum dry density) and field density test. (selected from basic construction quality supervision master station organization and compilation of Ministry of transportation in roadbed and pavement testing and detecting technology).

The roadbed compactness is the quality control index of the soil filling engineering. The soil sample before compaction is taken and sent to a laboratory to measure the dry density at the optimum water content, which is the maximum dry density of the sample. And measuring the actual dry density of the compacted sample, and dividing the actual dry density by the maximum dry density to obtain the actual compaction degree of the soil. The compaction degree of the soil can be known whether the compaction degree of the soil reaches the quality standard or not by comparing the number with the compaction degree specified by the standard. The sand filling method is commonly used for detecting the compaction degree of the roadbed, and holes are drilled on the roadbed and then measurement and calculation are carried out.

The existing multi-cutter-head drilling and excavating head for detecting the compaction degree of a highway subgrade has the following defects:

1. the drilled hole is circular or conical, and the inner wall is uneven, so that the accurate measurement of the hole is influenced;

2. the drilling depth of the drill bit is not visual enough, and the scales are arranged on the drill bit and are easy to wear due to the friction of the drill bit and the drill hole, so that the display is not clear.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a multitool head bores and digs head for detecting highway subgrade compactness through the bottom fixedly connected with connecting rod at the shaft coupling, rotates in telescopic bottom and is connected with the drill bit, has seted up the notch in one side of square groove, is provided with the marking of carving at telescopic surface, is provided with the scale in one side of square groove, has solved the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a multitool head bores and digs head for detecting highway subgrade compactness, includes the connection pad, the bottom fixedly connected with shaft coupling of connection pad, the bottom fixedly connected with sleeve of shaft coupling, the bottom fixedly connected with connecting rod of shaft coupling, the bottom fixedly connected with square groove of connecting rod, the bottom fixedly connected with tip in square groove, the notch has been seted up to one side in square groove, one side in square groove is provided with the scale, telescopic bottom is rotated and is connected with the drill bit, the bottom of drill bit is provided with the tool bit.

Optionally, a drilling machine is arranged at the top of the connecting disc, and a round hole is formed in the top of the connecting disc.

Optionally, a rotating shaft is arranged inside the coupler, and the rotating shaft of the coupler is fixedly connected with the drill bit.

Optionally, the outer surface of the sleeve is provided with a marking line, and a round hole matched with the rotating shaft is formed in the sleeve.

Optionally, the connecting rods are made of martensitic stainless steel, the number of the connecting rods is four, and the length of the four connecting rods is equal to that of the sleeve.

Optionally, the width of the square groove is smaller than the diameter of the sleeve, and the length of the square groove is the same as that of the drill bit.

Optionally, the pointed ends are made of high-speed steel, the number of the pointed ends is four, and the bottoms of the four pointed ends are in contact with the ground.

(III) advantageous effects

The utility model provides a multitool head bores and digs head for detecting highway subgrade compactness possesses following beneficial effect:

1. the multi-cutter-head drilling and excavating head for detecting the compaction degree of the highway subgrade is characterized in that the bottom of the coupler is fixedly connected with the connecting rod, the connecting rod is made of martensitic stainless steel and has high metal strength, and can support square grooves and sharp heads, the bottom of the sleeve is rotatably connected with the drill bit, so that the cutter head can drill a round hole, and the sharp head can punch a square hole through the impact action on the drilling head, so that the measurement is more convenient, the drilled soil can be discharged through the notch by arranging the notch at one side of the square groove, the inner wall of the drilled hole can be smooth by the square groove, the measurement is more convenient, through the matching arrangement of the connecting rod, the sleeve, the square groove, the tip, the notch, the drill bit and the cutter head, the drilling head can drill out a square hole, the measurement is more convenient, meanwhile, the square groove can be effectively supported, so that the inner wall of the hole is smooth, and the problem that the existing hole is irregular in shape and inconvenient to detect is solved.

2. This a multitool head bores and digs head for detecting highway subgrade compactness, be provided with through the surface at the sleeve and carve the mark line, one side at the square groove is provided with the scale, can make boring the head at the drilling in-process, the user has a audio-visual understanding to its drilling depth, and carve mark line and scale not with drilling rotary contact, do not set up on the drill bit, difficult wearing and tearing, through the sleeve, the square groove, the cooperation setting of scale, can make the user have clear understanding to the drilling depth, the measurement of being more convenient for, the scale of not wearing and tearing simultaneously, it is not audio-visual to have solved current drilling depth and show, the condition of scale easy wearing and tearing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a schematic side view of the present invention.

In the figure: 1-connecting disc, 2-coupler, 3-sleeve, 4-connecting rod, 5-square groove, 6-cusp, 7-notch, 8-scale, 9-drill bit and 10-cutter head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a multitool head bores and digs head for detecting highway subgrade compactness, including connection pad 1, connection pad 1's bottom fixedly connected with shaft coupling 2, shaft coupling 2's bottom fixedly connected with sleeve 3, shaft coupling 2's bottom fixedly connected with connecting rod 4, the bottom fixedly connected with square groove 5 of connecting rod 4, the bottom fixedly connected with tip 6 of square groove 5, notch 7 has been seted up to one side of square groove 5, one side of square groove 5 is provided with scale 8, sleeve 3's bottom is rotated and is connected with drill bit 9, the bottom of drill bit 9 is provided with tool bit 10.

As an optimal technical solution of the utility model: the drilling machine is arranged at the top of the connecting disc 1, a round hole is formed in the top of the connecting disc 1, a rotating shaft is arranged inside the coupling 2, the rotating shaft of the coupling 2 is fixedly connected with the drill bit 9, the drilling machine works to drive the rotating shaft to work, the drill bit 9 rotates, a marking line is arranged on the outer surface of the sleeve 3, a round hole matched with the rotating shaft is formed in the sleeve 3, the marking line can enable a user to clearly see the drilling depth, the connecting rods 4 are made of martensitic stainless steel, the number of the connecting rods 4 is four, the length of the four connecting rods 4 is the same as that of the sleeve 3, the martensitic stainless steel is high in metal strength and can effectively support the square groove 5, the square groove 5 impacts the ground through the sharp heads 6, the width of the square groove 5 is smaller than the diameter of the sleeve 3, the length of the square groove 5 is the same as that of the drill bit 9, the bottoms of the four sharp heads 6 are in contact with the ground, and the high-speed steel is made of an ideal material of the drill bit, so that the impact effect of the sharp heads 6 on the ground is good.

When the user uses, the rig work makes drill bit 9 rotate through the inside pivot of 2 shaft couplings, drills to the roadbed, strikes the roadbed through square groove 5 and tip 6 simultaneously, makes the shape of hole square to the inner wall is smooth, and the soil that drills out flows through notch 7 of square groove 5 both sides, and the user can audio-visually see the degree of depth of creeping into through mark line and scale, and mark line and scale are difficult for wearing and tearing.

To sum up, the multi-cutter-head drilling and excavating head for detecting the compaction degree of the highway subgrade is characterized in that the connecting rod 4 is fixedly connected to the bottom of the coupler 2, the connecting rod 4 is made of martensitic stainless steel, the metal strength is high, the multi-cutter-head drilling and excavating head can support the square groove 5 and the tip 6, the drill bit 9 is rotatably connected to the bottom of the sleeve 3, the cutter head 10 can drill a round hole, the tip 6 can punch a square hole through the impact effect on the drilling and excavating head, the measurement is more convenient, drilled soil can be discharged through the notch 7 by arranging the notch 7 at one side of the square groove 5, the square groove 5 can flatten the inner wall of the drilled hole and facilitate the measurement, the square groove 5, the tip 6, the notch 7, the drill bit 9 and the cutter head 10 are matched, the square drilling and excavating head can drill a hole, the measurement is more convenient, and the square groove 5 can be effectively supported, the inner wall of the hole is smooth, and the problem that the existing hole is irregular in shape and inconvenient to detect is solved; be provided with through the surface at sleeve 3 and carve the mark line, one side at square groove 5 is provided with scale 8, can make and dig the head at the brill in-process, the user has a audio-visual understanding to its drilling depth, and carve mark line and scale 8 not with drilling rotary contact, do not set up on drill bit 9, difficult wearing and tearing, through sleeve 3, square groove 5, scale 8's cooperation sets up, can make the user have clear understanding to the drilling depth, be more convenient for measure, the scale does not abrade simultaneously, the current condition that the drilling depth shows is not audio-visual, the scale easily wears out has been solved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a multitool head bores and digs head for detecting highway subgrade compactness which characterized in that: including connection pad (1), bottom fixedly connected with shaft coupling (2) of connection pad (1), bottom fixedly connected with sleeve (3) of shaft coupling (2), bottom fixedly connected with connecting rod (4) of shaft coupling (2), bottom fixedly connected with square groove (5) of connecting rod (4), bottom fixedly connected with tip (6) of square groove (5), notch (7) have been seted up to one side of square groove (5), one side of square groove (5) is provided with scale (8), the bottom of sleeve (3) is rotated and is connected with drill bit (9), the bottom of drill bit (9) is provided with tool bit (10).

2. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the drilling machine is arranged at the top of the connecting disc (1), and a round hole is formed in the top of the connecting disc (1).

3. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the inside of shaft coupling (2) is provided with the pivot, the pivot and the drill bit (9) fixed connection of shaft coupling (2).

4. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the outer surface of the sleeve (3) is provided with a marking line, and a round hole matched with the rotating shaft is formed in the sleeve (3).

5. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the connecting rods (4) are made of martensitic stainless steel, the number of the connecting rods (4) is four, and the length of the four connecting rods (4) is equal to that of the sleeve (3).

6. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the width of the square groove (5) is smaller than the diameter of the sleeve (3), and the length of the square groove (5) is the same as that of the drill bit (9).

7. The multi-bit drilling head for detecting road bed compaction of claim 1, wherein: the pointed ends (6) are made of high-speed steel, the number of the pointed ends (6) is four, and the bottoms of the four pointed ends (6) are in contact with the ground.