CN216008405U

CN216008405U - Hole digger with crushing effect

Info

Publication number: CN216008405U
Application number: CN202122401845.XU
Authority: CN
Inventors: 郑建荣; 郑皓阳
Original assignee: Yueqing City Yongda Tool Co ltd
Current assignee: Yueqing City Yongda Tool Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-11
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a hole digger with crushing effect, which comprises a main body, wherein a central drill is arranged on the top end of the main body; the top end of the main body is provided with a plurality of bosses distributed in a circumferential array, the top surfaces of the bosses exceed the top end of the main body, a gap is formed between every two adjacent bosses, the top surfaces of the bosses are provided with a plurality of first alloy heads, and the first alloy heads are distributed in a circumferential array relative to the top end of the main body; the side surface of the main body is provided with a spiral chip guide groove which is communicated with the notch; the utility model discloses crushing effect, powerful trompil, efficient have.

Description

Hole digger with crushing effect

Technical Field

The utility model relates to a hole digger with crushing effect.

Background

In the pipe layout or air conditioner installation process of modern home decoration, hole drilling operation is often carried out on concrete walls and rocks, and a special wall hole drilling device is needed.

Current wall hole digger includes that a center bores and a sleeve, and the sleeve cover is established on the center bores, and the sleeve bores with the center and is equipped with the dentate part that a plurality of is circumference array distribution on one side, bores the location back through the center, then wholly rotates, and dentate part bores the equal rotation with the center, realizes the trompil effect. But this kind of hole digger is very good to the trompil effect with materials such as plank, to muddy earth and rock material, because the injecing of intensity and chip removal itself, so at the trompil in-process, form monoblock or bold piece very easily, the piece can't be discharged, and telescopic wall is thinner moreover, leads to whole hole digger to damage very easily. Therefore, at present, operators work for a period of time, then withdraw the hole digger, carry out scrap cleaning operation, carry out hole forming operation again, and repeat the above steps, thereby realizing hole forming.

By adopting the hole digger, the hole digger has extremely poor hole digger efficiency and extremely low hole digger quality, so that a hole digger capable of quickly forming holes is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a hole digger with crushing effect.

The utility model discloses the technical scheme who solves its technical problem and adopt is: a hole digger with crushing effect comprises a main body, wherein a central drill is arranged at the top end of the main body; the top end of the main body is provided with a plurality of bosses distributed in a circumferential array, the top surfaces of the bosses exceed the top end of the main body, a gap is formed between every two adjacent bosses, the top surfaces of the bosses are provided with a plurality of first alloy heads, and the first alloy heads are distributed in a circumferential array relative to the top end of the main body; the side surface of the main body is provided with a spiral chip guide groove which is communicated with the notch.

Adopt this kind of structure setting, at first every boss all surpasss the main part top, has formed certain crushing effect, and the piece that the breakage produced can discharge to holistic outside through spiral chip guide groove through the breach, realizes the effect of quick chip removal, has adopted the setting of first alloy head on the boss moreover, has strengthened holistic crushing effect for the efficiency of trompil is higher, has realized the effect of powerful trompil.

The side, facing the central drill, of the boss comprises a first side face and a second side face, and the top ends of the first side face and the second side face are connected to form a sharp angle.

Through the setting of closed angle for whole hole digger is at rotatory in-process, and the closed angle also can carry out further broken effect with the piece, prevents that the piece from piling up on the main part top, and the piece after the breakage can be discharged through the spiral chip guide groove through the breach fast.

Wherein, be equipped with first recess on the first side, first recess is located one side of breach.

The first groove is arranged, so that the sharpness of the sharp corner is higher, and the first groove also has a certain guiding effect, so that the scraps can be quickly discharged.

Wherein, the outer side wall of the boss is provided with a second groove.

The setting of second recess for the hole digger has reduced the contact surface between whole and the wall in the use, forms certain radiating effect, and the piece can discharge through spiral chip guide groove through the second recess moreover, thereby realizes the chip removal effect.

Wherein, at least two first alloy heads are arranged on the top surface of the boss.

Adopt the setting of two first alloy heads, increased holistic crushing effect for the hole digger is in the course of the work, and intensity is higher, crushing effect is stronger.

The top surface of the boss is provided with two first alloy heads, the centers of the first alloy heads positioned on the outer side are distributed on the track of a first circle, the centers of the first alloy heads positioned on the inner side are distributed on the track of a second circle, and the first circle and the second circle are arranged concentrically.

Two groups of first alloy heads are adopted to form two circles with different sizes, so that the holing device has a better crushing effect in the crushing process.

And the first alloy head positioned on the outer side and the first alloy head positioned on the inner side are not positioned in the same radial direction relative to the central drill.

Two alloy heads adopt dislocation set for the crushing of formation different positions between the two, both make up, have improved holistic crushing effect.

Wherein, the center drill is provided with a first chip guide groove.

Due to the arrangement of the first chip guide groove, the center drill also has a certain chip guide effect after being positioned.

Wherein, be equipped with a plurality of second alloy head on the main part top.

Adopt the setting of second alloy head for piece on the main part top forms secondary crushing's effect, makes the clastic volume of large granule reduce, does benefit to the piece and discharges.

Wherein the height of the second alloy head is lower than the height of the boss.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a plan view of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of another embodiment of the present invention 1;

fig. 4 is a schematic structural view of another embodiment of the present invention 1;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 6 is a schematic structural view of another embodiment of the present invention according to embodiment 2.

Detailed Description

Example 1:

referring to fig. 1 to 4, a hole cutter having a crushing effect includes a body 1.

The main body 1 comprises a rod part 2 and a handle part 3, wherein the rod part 2 is in a step shape, the size of the top end of the rod part is larger than that of the joint of the rod part 2 and the handle part 3, a plurality of spiral chip guide grooves 21 are arranged on the side surface of the rod part 2, and the number of the spiral chip guide grooves 21 is four in the embodiment. The helical chip guide groove 21 is located at one end of the top end of the shaft 2, that is, one end of the helical chip guide groove 21 is connected with the top end of the shaft 2, and the other end extends spirally towards the handle 3.

The handle 3 is particularly intended to be connected to a drive device to create a rotary drive effect. As shown in fig. 1, the shank 3 may be a square shank with four flutes. As shown in fig. 3, the shank 3 is a five-pitted shank. In addition, the handle 3 can be replaced by a handle 3 of another shape, and a person skilled in the art would know how to modify this embodiment. It should also be noted that the driving device may be an electric pick or hammer, etc.

Be equipped with a plurality of bosss 4 that are the circumference array and distribute on the top of pole portion 2, the quantity of boss 4 is four in this embodiment. Four bosses 4 are located on the edge of the top end of the stem 2, i.e. the outer side wall forming the boss 4 is coplanar with the side of the top end of the stem 2. Meanwhile, one end of the boss 4 is connected with the top end of the rod part 2, and the other end extends towards the opposite direction of the top end of the rod part 2, so that the top surface of the boss 4 exceeds the top end of the rod part 2 to form an open cavity 5 structure, and the top end of the rod part 2 becomes the bottom surface of the cavity 5.

The four bosses 4 are distributed in a circumferential array, so that notches 41 are formed between every two adjacent bosses 4, the number of the notches 41 is four, and the four notches 41 are respectively communicated with the corresponding spiral chip guide grooves 21, so that a quick discharge effect of chips in the cavity 5 is achieved.

The structure of each boss 4 is the same, so that only one boss 4 structure is described in this embodiment. Boss 4 includes first side 42 and second side 43 towards cavity 5 center one side, and first side 42 is connected with the top of second side 43 and is formed sharp angle 44, and here sharp angle 44 is located the whole position that is closer to cavity 5 center of boss 4, and the angle of sharp angle 44 can be adjusted according to actual demand simultaneously, can be the acute angle, also can be right angle or obtuse angle, adopts the setting of acute angle, has formed crushing effect, makes the large granule piece that is located cavity 5 can be broken, forms the chip removal effect of being convenient for of tiny particle piece. And the right angle and the obtuse angle are arranged to form a polishing effect, so that the effect of reducing the volume of the chippings is realized. Be equipped with first recess 421 on first side 42, first recess 421 are located one side of breach 41, and first recess 421 and breach 41 are the intercommunication, the setting of first recess 421 for the sharpness of closed angle 44 is higher, and first recess 421 has still played certain guide effect moreover, makes the piece discharge fast.

And a second groove 45 is formed in the outer side wall of the boss 4, and the second groove 45 is communicated with the spiral chip guide groove 21. The setting of second recess 45 for the hole digger has reduced the contact surface between whole and the wall in the use, forms certain radiating effect, and the piece can discharge through spiral chip guide groove 21 through second recess 45 in addition, thereby realizes the chip removal effect.

Be equipped with two at least first alloy heads 6 on the top surface of boss 4, the preferred scheme is in this embodiment, is equipped with two first alloy heads 6 on a boss 4, and for better description, so two first alloy heads 6 are first alloy head I61 and first alloy head II 62 respectively, and the shape size of first alloy head I61 and first alloy head II 62 here is all unanimous, is the sword type alloy head. First alloy head I61 is located boss 4 and is close to on the outer wall one side, and first alloy head II 62 is located boss 4 and is close to on one side of cavity 5, and both parts are partly surpassed boss 4, and first alloy head I61 part surpasss outside to the outer wall, and first alloy head II 62 part stretches into in the cavity 5 to improve holistic crushing effect.

First alloy head I61 and first alloy head II 62 are apart from the distance inequality of 5 central points on cavity, the center of event four first alloy head I61 distributes on the orbit of first circle, the center of first alloy head II 62 distributes on the orbit of second circle, first circle and second circle are concentric setting, the effect of two sets of first alloy heads 6 has been formed, because the size of two circles is different, the event hole digger is at rotatory in-process, form two circular broken orbits, and the interval of two first alloy heads 6 is not big, the wall body between the broken orbit of event two circles is broken more easily, improve holistic trompil effect.

The first alloy head i 61 and the first alloy head ii 62 are not located in the same radial direction with respect to the imaginary central axis of the rod 2. Specifically, when the center of the first alloy head i 61 is connected to the imaginary central axis of the shaft 2, the center of the first alloy head ii 62 is not located on the connecting line of the two. Two alloy heads adopt dislocation set for the crushing of formation different positions between the two, both make up, have improved holistic crushing effect.

The top end of the rod part 2 is also provided with a central drill 22 and a plurality of second alloy heads 23, the central drill 22 is positioned at the central position of the top end of the ejector rod, and the central drill 22 and the rod part 2 are coaxially arranged. Here, the core drill 22 may be provided with a third alloy head 221, and the third alloy head 221 is welded to the core drill 22. The side of the center drill 22 is provided with a first chip guide groove 222. The first chip guide groove 222 is arranged, so that after the central drill 22 is positioned, a certain chip guide effect is also achieved.

The second alloy heads 23 are conical, the number of the second alloy heads 23 can be selected according to actual requirements, the second alloy heads 23 are positioned in the concave cavity 5 and between the central drill 22 and the boss 4, and the height of the second alloy heads 23 is lower than that of the boss 4. Adopt the setting of second alloy head 23 for the piece on main part 1 top forms the effect of secondary crushing, makes the clastic volume of large granule reduce, does benefit to the piece and discharges. It should be noted here that as shown in fig. 4, when the size of the top end of the rod 2 is increased, the size of the cavity 5 is also increased, more second alloy heads 23 can be placed, and when the number of second alloy heads 23 is multiple, the second alloy heads 23 are distributed in a circumferential array.

Adopt this kind of structure setting, at first every boss 4 all surpasss 1 top of main part, has formed certain crushing effect, and the piece that the breakage produced can be discharged to holistic outside through spiral chip guide groove 21 through breach 41, realizes the effect of quick chip removal, has adopted the setting of first alloy head 6 on the boss 4 moreover, has strengthened holistic crushing effect for the efficiency of trompil is higher, has realized the effect of powerful trompil.

Example 2:

referring to fig. 5-6, the difference between embodiment 2 and embodiment 1 is that the number of bosses 4 is three in this embodiment, and three bosses 4 are arranged in a circumferential array. The shank 3 of the same hole cutter may also be selected according to practical requirements, as shown in fig. 5, the shank 3 may be a square shank with four flutes. As shown in fig. 6, the shank 3 is a five-pitted shank. In addition, the handle 3 can be replaced by a handle 3 of another shape, and a person skilled in the art would know how to modify this embodiment.

Claims

1. A hole digger with crushing effect comprises a main body, wherein a central drill is arranged at the top end of the main body; the method is characterized in that: the top end of the main body is provided with a plurality of bosses distributed in a circumferential array, the top surfaces of the bosses exceed the top end of the main body, a gap is formed between every two adjacent bosses, the top surfaces of the bosses are provided with a plurality of first alloy heads, and the first alloy heads are distributed in a circumferential array relative to the top end of the main body; the side surface of the main body is provided with a spiral chip guide groove which is communicated with the notch.

2. A hole cutter with crushing effect as claimed in claim 1, wherein: the side, facing the central drill, of the boss comprises a first side face and a second side face, and the top ends of the first side face and the second side face are connected to form a sharp angle.

3. A hole cutter with crushing effect as claimed in claim 2, wherein: the first side surface is provided with a first groove, and the first groove is positioned on one side of the notch.

4. A hole cutter with crushing effect as claimed in claim 1, wherein: and a second groove is arranged on the outer side wall of the boss.

5. A hole cutter with crushing effect as claimed in claim 1, wherein: at least two first alloy heads are arranged on the top surface of the boss.

6. A hole cutter with crushing effect as claimed in claim 5, wherein: the top surface of the boss is provided with two first alloy heads, the centers of the first alloy heads positioned on the outer side are distributed on the track of a first circle, the centers of the first alloy heads positioned on the inner side are distributed on the track of a second circle, and the first circle and the second circle are arranged concentrically.

7. A hole cutter with crushing effect as claimed in claim 6, wherein: the first alloy head on the outside and the first alloy head on the inside are not located in the same radial direction with respect to the center drill.

8. A hole cutter with crushing effect as claimed in claim 1, wherein: a first chip guide groove is formed in the central drill.

9. A hole cutter with crushing effect as claimed in claim 1, wherein: a plurality of second alloy heads are arranged on the top end of the main body.

10. A hole cutter with crushing effect as claimed in claim 9, wherein: the height of the second alloy head is lower than the height of the boss.