CN216265828U

CN216265828U - Double-strand steel chisel

Info

Publication number: CN216265828U
Application number: CN202121189291.5U
Authority: CN
Inventors: 申雷则
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-04-12
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a double-strand steel chisel, and relates to the field of pneumatic picks. On one hand, the breaking direction of the impact part can be improved to have directivity, namely the straight line where the two pickaxes are located is the general breaking direction; on the other hand, the efficiency of impact damage is obviously improved, and the damage speed is directly doubled.

Description

Double-strand steel chisel

Technical Field

The utility model relates to the field of air picks, in particular to a double-strand steel chisel.

Background

The air pick is a handheld construction machine which takes compressed air as power and destroys hard objects through the impact action of a steel rod fixed at the front end. The existing air pick is subjected to impact damage by single-stranded steel rods, and the single-stranded steel rods have a plurality of problems in use, firstly, the efficiency is too low, the multi-point impact is formed by ceaselessly transferring a damage point, and the linkage damage stress can be formed, and particularly, when the air pick meets a soft soil layer, the single-point impact is more difficult to form linear damage; secondly, the single-point damage has poor control on the damage direction, and cracks are generated completely depending on the self stress of the damaged body, so that the cracks cannot be easily controlled by the user subjectively.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a double-strand steel chisel, which can improve the directivity of the damage direction of an impact part, namely the straight line of two picks is the approximate damage direction; on the other hand, the efficiency of impact damage is obviously improved, and the damage speed is directly doubled.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a double-strand steel chisel comprises a fixed section, wherein two pickaxes are arranged at the front end of the fixed section forwards.

The rear end of the fixed end is fixed with the air pick, and then the air pick can work as a conventional air pick. When the two pickaxes impact, the impact points are two points, on one hand, the two points can form a straight line, and the two points have better pointing effect on the damage direction of the impact part, especially on the damage part of the soft belt; on the other hand, the impact area is improved by two points, and the impact efficiency is directly improved by one time.

Preferably, the two picks are arranged in parallel to each other. The impact directions are kept parallel, the two impacted pore passages are prevented from being inclined, the two pickaxes are bent, and the pickaxes can be taken out better after impact.

Preferably, the pick comprises a drill bit and a drill rod. The damaged portion can be drilled better by the drill bit.

Preferably, the two picks are located at two ends of a U-shaped part, and the middle part of the U-shaped part is fixed with the front end of the fixed section. The pickaxe is arranged by the U-shaped piece, so that the integrity of the two pickaxes can be improved, and the force applied in the impact process is facilitated.

Preferably, the middle part of the U-shaped part is provided with a connecting part, and the connecting part is in running fit with the fixed section. The U-shaped piece can be detached from the fixed section, and one or three or more steel rods of the pickaxe can be replaced according to the requirement.

Preferably, the drill bit is a cone with the bottom fixed with the drill rod, and the circle diameter of the bottom surface of the cone is larger than that of the drill rod. Conventional pneumatic pick can reciprocating motion at the impact in-process, and after the impact got into parts such as soil layer, the soil layer can extrude lateral wall such as drilling rod, influences the dynamics of assaulting, adopts the bigger cone structure's of circle footpath drill bit, can be that leave certain clearance between drilling rod and the soil layer, avoids direct extrusion drilling rod, can bring stronger impact dynamics, and the drill bit and drilling rod are more conveniently taken out to littleer soil layer extrusion force.

Preferably, a plurality of side ridges are arranged along the generatrix direction of the cone. The side ridge can increase the pressure intensity when the drill bit contacts with the soil layer and the like, and the impact force is improved.

The utility model has the beneficial effects that:

the two pickaxes are used for impacting, so that on one hand, the damage direction of an impact part can be improved to have directivity, namely the straight line where the two pickaxes are located is the general damage direction; on the other hand, the efficiency of impact damage is obviously improved, and the damage speed is directly doubled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only three of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of example 2 of the present invention;

FIG. 3 is a schematic view of example 3 of the present invention;

wherein, the fixed section 1, the U-shaped part 2, the pickaxe 3, the connecting part 4, the side ridge 5 and the drill rod 6.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

Example 1

As shown in figure 1, the double-strand drill steel comprises a fixed section 1, wherein two pickaxes 3 are arranged at the front end of the fixed section 1 forwards.

The rear end of the fixed end is fixed with the air pick, and then the air pick can work as a conventional air pick. When the two pickaxes 3 impact, the impact points are two points, on one hand, the two points can form a straight line and have better pointing effect on the damage direction of the impact part, on the other hand, the two points improve the impact area and directly improve the impact efficiency by one time.

The two pickaxes 3 are arranged in parallel. The impact directions are kept parallel, the two impacted pore passages are prevented from being inclined, the two pickaxes 3 are bent, and the pickaxes 3 can be taken out after impact.

The two pickaxes 3 are located at two ends of a U-shaped part 2, and the middle part of the U-shaped part 2 is fixed with the front end of the fixed section 1. Adopt U type spare 2 to set up pick 3, can improve the wholeness of two pick 3, be convenient for strike the hard of in-process.

The two pickaxes 3 are used for impact, on one hand, the damage direction of an impact part can be improved to have directivity, namely the straight line where the two pickaxes 3 are located is the approximate damage direction; on the other hand, the efficiency of impact damage is obviously improved, and the damage speed is directly doubled.

Example 2

As shown in fig. 2, compared with embodiment 1, embodiment 2 also has the following technical characteristics that the pick head 3 comprises a drill bit and a drill rod 6. The damaged portion can be drilled better by the drill bit.

The middle part of U type spare 2 is equipped with connecting portion 4, connecting portion 4 with fixed section 1 normal running fit. The U-shaped part 2 can be detached from the fixed section 1, and one or three or even more steel rods of the pickaxe 3 can be replaced according to the requirement.

Example 3

As shown in fig. 3, compared with embodiment 1, embodiment 2 has the technical feature that the drill bit is a cone with a bottom fixed with the drill rod 6, and the circle diameter of the bottom surface of the cone is larger than that of the drill rod 6. Conventional pneumatic pick can reciprocating motion at the impact in-process, and after the impact gets into parts such as soil layer, the soil layer can extrude lateral walls such as drilling rod 6, influences the dynamics of assaulting, adopts the bigger cone structure's of circle footpath drill bit, can be that leave certain clearance between drilling rod 6 and the soil layer, avoids direct extrusion drilling rod 6, can bring stronger impact dynamics, and littleer soil layer extrusion force more conveniently takes out drill bit and drilling rod 6. And a plurality of side ridges 5 are arranged along the generatrix direction of the cone. The side ridge 5 can increase the pressure when the drill bit contacts with the soil layer and the like, and improve the impact force.

The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.

Claims

1. The double-strand steel chisel is characterized by comprising a fixed section (1), wherein two pickaxes (3) are arranged at the front end of the fixed section (1) forwards; the two pickaxes (3) are arranged in parallel; the pickaxe (3) comprises a drill bit and a drill rod (6); the two pickaxes (3) are located at two ends of a U-shaped part (2), and the middle of the U-shaped part (2) is fixed with the front end of the fixed section (1).

2. A bifilar drill steel according to claim 1, wherein: the drill bit is a cone with the bottom fixed with the drill rod (6), and the circular diameter of the bottom surface of the cone is larger than that of the drill rod (6).

3. A bifilar drill steel according to claim 2, wherein: and a plurality of side ridges (5) are arranged along the generatrix direction of the cone.