CN219364548U

CN219364548U - Hole digger for detecting compactness

Info

Publication number: CN219364548U
Application number: CN202222567486.XU
Authority: CN
Inventors: 张曜鹏; 温少波; 宋毅; 孙永亮; 田格格
Original assignee: Shanxi Hengbiao Engineering Investigation And Testing Co ltd
Current assignee: Shanxi Hengbiao Engineering Investigation And Testing Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-07-18
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to a hole digger for detecting compactness, which comprises a guide cylinder, wherein the upper end of the guide cylinder is fixedly connected with a handle rod, the upper end of the handle rod is fixedly connected with a handle, a fixed shaft is arranged at the center of the inside of the guide cylinder and along the length direction of the guide cylinder, the fixed shaft is fixedly connected with a telescopic rod in the axial direction, the lower end of the telescopic rod is fixedly connected with a motor, the lower end of the motor is fixedly connected with a rotating shaft, the lower end of the rotating shaft is movably connected with a detachable drill bit, and the motor drives the drill bit to drill soil below. The device digs the hole mode for having adopted the removal of controller control piston rod to promote cutting ring and drill bit downstream, in the rotatory cutting into soil of motor control drill bit, the inner wall slick and sly of cutting ring assurance hole, thereby make the hole to accord with the sand filling method and detect the standard in the required hole of compactness, the drill bit can cut into soil, loosens soil, makes things convenient for follow-up staff to dig the sample.

Description

Hole digger for detecting compactness

Technical Field

The utility model relates to the field of roadbed construction, in particular to a hole digger for detecting compactness.

Background

The detection of the compactness in the roadbed construction process is a serious problem of quality control, if the compactness detection value is unqualified, the whole construction quality of the road surface can be greatly influenced, the road surface is structurally damaged in a short time, and the road surface is provided with defects such as netty cracks, pits and the like.

In the roadbed and soil construction process at the present stage, the compaction degree is usually detected by adopting a sand filling method given in the on-site test procedure of highway roadbed and pavement (JTG E60-2008). The compaction degree is detected by the sand filling method, namely, the soil sample after compaction is replaced and completed in an equal volume by standard sand with known apparent density, so that the site actual dry density of the lime soil is calculated and is compared with the standard maximum dry density obtained by an indoor test, and the actual compaction degree is obtained.

In the actual operation process, soil in an appointed test pit needs to be taken out, and due to the fact that special matched drilling and soil taking equipment is lacking, in the process of drilling and soil taking of the test pit, at least two persons need to drill by using a shovel in turns, meanwhile, the problem that the inner wall of the test pit manually drilled when the shovel is used for pit drilling is not smooth enough, the standard of compactness detection by a sand filling method is not met, and the accuracy and reliability of test results are affected to a certain extent is also caused.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a hole digger for detecting compactness, which comprises a guide cylinder;

the upper end of the guide cylinder is fixedly connected with a handle rod, and the upper end of the handle rod is fixedly connected with a handle;

the fixed shaft is arranged in the center of the inside of the guide cylinder and along the length direction of the guide cylinder, the telescopic rod is fixedly connected to the axial direction of the fixed shaft, the motor is fixedly connected to the lower end of the telescopic rod, the rotating shaft is fixedly connected to the lower end of the motor, the detachable drill bit is movably connected to the lower end of the rotating shaft, and the motor drives the drill bit to drill holes in soil below;

the cutting ring is coaxially arranged with the drill bit, and is connected with the telescopic rod through a fixed rod, the upper end of the cutting ring is fixedly connected with a position detection sensor, and the upper end of the position detection sensor is connected with a piston cylinder which is fixedly connected with the inside of the guide cylinder.

Preferably, a button is arranged above the handle rod.

Preferably, the cutting ring is connected with the fixing rod through a pin.

Preferably, the drill bit is a cone drill bit.

Preferably, the diameter of the cutting ring is smaller than the diameter of the guide cylinder.

Preferably, the circumference surface of the lower end of the guide cylinder is fixedly connected with two pedals.

Preferably, a limiting block is arranged on the circumferential surface inside the guide cylinder.

Preferably, the number of the position detection sensors and the number of the limiting blocks are two.

Preferably, the number of the piston cylinders is two.

Preferably, the vertical distance between the upper end face of the limiting block and the lower end face of the telescopic rod in the original state is the distance of the required hole digging.

The utility model has the following beneficial effects:

the hole digger for detecting the compactness solves the problems that manual hole digging is time-consuming and labor-consuming, a worker presses a button to start a motor, the motor drives a rotating shaft to rotate, meanwhile, an integrated circuit board is adopted to control the movement of a piston rod, so that a ring cutter and a drill bit are driven to move downwards, the motor controls the drill bit to rotate, the ring cutter is of a hollow ring structure, the circumferential surface of the ring cutter is smooth, a cutting edge is arranged at the bottom of the ring cutter, and the hole digger can cut into soil so as to ensure that the inner wall of the hole digger is smooth, so that the hole digger meets the standard of holes required by a sand filling method for detecting the compactness, the detection result is more accurate and reliable, and the drill bit at the lower end of the rotating shaft is a conical drill bit, can cut into soil to loosen the soil, thereby facilitating the soil digging and sampling of subsequent workers.

Drawings

FIG. 1 is a schematic view of a hole digger according to the present utility model;

FIG. 2 is a side view of the hole digger of the present utility model;

FIG. 3 is a cross-sectional view of a hole digger in accordance with the present utility model;

fig. 4 is a schematic structural view of a hole digger ring cutter according to the present utility model.

Legend description:

1. a guide cylinder; 2. a handle bar; 3. a handle; 4. a piston cylinder; 5. a position detection sensor; 6. cutting ring; 7. a fixed shaft; 8. a telescopic rod; 9. a motor; 10. a rotating shaft; 11. a drill bit; 12. a foot pedal; 13. a fixed rod; 14. a button; 15. and a limiting block.

Detailed Description

For a better understanding of the objects, structure and function of the present utility model, a hole digger for detecting compaction is described in further detail below with reference to the accompanying drawings.

Embodiment one:

referring to fig. 1-3, a hole digger for detecting compactness comprises a guide cylinder 1, wherein the upper end of the guide cylinder 1 is fixedly connected with a handle rod 2, the lower end of the handle rod 2 is fixedly connected with a handle 3, a button 14 is arranged above the handle 3, a worker can control a motor 9 to rotate through the button 14, meanwhile, the worker places both hands on the handle 3 to keep the stability of the tool, the two feet can also tread on two pedals 12 arranged on the circumferential surface of the lower end of the guide cylinder 1, a fixed shaft 7 is arranged at the center of the inside of the guide cylinder 1 and is arranged along the length direction of the guide cylinder 1, a telescopic rod 8 is fixedly connected with the axial direction of the fixed shaft 7, the telescopic rod 8 can be stretched, the lower end of the telescopic rod 8 is fixedly connected with a motor 9, the lower end of the motor 9 is fixedly connected with a rotating shaft 10, the lower end of the rotating shaft 10 is movably connected with a detachable drill bit 11, the upper end of the cutting ring 6 is fixedly connected with a position detection sensor 5, the number of the position detection sensor 5 is two, the upper end of the position detection sensor 5 and the upper end of the piston 6 are fixedly connected with a piston 4 of the guide cylinder 4, a piston 4 is fixedly connected with a piston rod 4, and a piston 4 is driven by a piston rod 4 and an integrated circuit is driven to move, and an integrated circuit is driven to move downwards, and a piston 4 is commanded to move towards the piston 4.

Embodiment two:

referring to fig. 1-4, the cutting ring 6 and the drill bit 11 may be coaxially arranged, the cutting ring 6 is connected with the telescopic rod 8 through the fixing rod 13, the position detection sensor 5 is connected below the piston cylinder 4, the cutting ring 6 and the fixing rod 13 may be connected through a pin, a pin hole is formed in the circumferential surface of the cutting ring 6, the fixing rod 13 is inserted into the pin hole, the cutting ring 6 and the fixing rod 13 are connected together through a pin, the drill bit 11 may be a conical screw drill bit to reduce the cutting force applied to the ground during drilling, the diameter of the cutting ring 6 is smaller than that of the guide cylinder 1, and the cutting speed of the cutting ring 6 is not affected by the friction force of the inner wall of the guide cylinder 1 in the process of downward movement of the cutting ring 6.

Embodiment III:

referring to fig. 1 to 4, after a worker pushes the tool to a designated place to place, limiting blocks 15 are installed on the circumferential surface inside the guide cylinder 1, the number of the limiting blocks 15 is two, the vertical distance between the upper end surface of each limiting block 15 and the lower end surface of the original state of the telescopic rod 8 is the distance of a required hole to be dug, the number of the piston cylinders 4 is two, a position detection sensor 5 can be installed on the ring cutter 6, when the ring cutter 6 descends to the designated distance, the position detection sensor 5 can touch the limiting blocks 15 to stop downward movement of the ring cutter 6, a cutting edge is arranged at the bottom of the ring cutter 6 and can cut into soil, the circumferential surface outside the ring cutter 6 is smooth, and accordingly smooth inner wall of the hole to be guaranteed, and accordingly the hole to be dug meets the standard of holes required by the sand filling method for detecting compactness.

Working principle: when a worker presses a button 14, a motor 9 is started, a piston cylinder 4 controls a piston rod to move downwards, a limiting block 15 is located below a position detection sensor 5, after the piston rod moves downwards to a certain distance, the position detection sensor 5 touches the limiting block 15, the piston rod stops moving downwards, because a cutter ring 6 is connected to the lower end of the position detection sensor 5, a fixing rod 13 moves downwards to drive the position detection sensor 5 to move downwards, a telescopic rod 8 is stretched by the fixing rod 13, the cutter ring 6 moves downwards along with the piston rod, the cutter ring 6 is of a hollow circular ring structure, the circumferential surface of the cutter ring 6 is smooth, the bottom is provided with a cutting edge, the cutter ring can cut into soil, the inner wall of a hole can be guaranteed to be smooth, the hole digging standard accords with the standard of a hole required by a sand filling method detection compactness, a drill bit 11 at the lower end of a rotary shaft 10 is a conical drill bit, the cutter ring can cut into soil, the soil can be loosened, and the soil digging sampling of a subsequent worker is facilitated.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. Hole digger of detection compactness, its characterized in that: comprises a guide cylinder (1);

the upper end of the guide cylinder (1) is fixedly connected with a handle rod (2), and the upper end of the handle rod (2) is fixedly connected with a handle (3);

the fixed shaft (7) is arranged at the center of the inside of the guide cylinder (1), the fixed shaft is arranged along the length direction of the guide cylinder (1), a telescopic rod (8) is fixedly connected to the fixed shaft (7) in the axial direction, a motor (9) is fixedly connected to the lower end of the telescopic rod (8), a rotating shaft (10) is fixedly connected to the lower end of the motor (9), a detachable drill bit (11) is movably connected to the lower end of the rotating shaft (10), and the motor (9) drives the drill bit (11) to drill holes on soil below;

the cutting ring (6) is coaxially arranged with the drill bit (11), the cutting ring (6) is connected with the telescopic rod (8) through the fixing rod (13), the upper end of the cutting ring (6) is fixedly connected with the position detection sensor (5), and the upper end of the position detection sensor (5) is connected with the piston cylinder (4) which is fixedly connected with the inside of the guide cylinder (1).

2. The hole digger of claim 1 for detecting compaction, wherein: a button (14) is arranged above the handle rod (2).

3. The hole digger of claim 1 for detecting compaction, wherein: the cutting ring (6) is connected with the fixed rod (13) through a pin.

4. The hole digger of claim 1 for detecting compaction, wherein: the drill bit (11) is a cone drill bit.

5. The hole digger of claim 1 for detecting compaction, wherein: the diameter of the cutting ring (6) is smaller than that of the guide cylinder (1).

6. The hole digger of claim 1 for detecting compaction, wherein: the circumference surface of the lower end of the guide cylinder (1) is fixedly connected with two pedals (12), and the number of the pedals (12) is two.

7. The hole digger of claim 1 for detecting compaction, wherein: a limiting block (16) is arranged on the circumferential surface inside the guide cylinder (1).

8. The hole digger of claim 7 for detecting compaction, wherein: the number of the position detection sensors (5) and the number of the limiting blocks (16) are two.

9. The hole digger of claim 1 for detecting compaction, wherein: the number of the piston cylinders (4) is two.

10. The hole digger of claim 7 for detecting compaction, wherein: the vertical distance between the upper end face of the limiting block (16) and the lower end face of the telescopic rod (8) in the original state is the distance of a hole to be dug.