CN211438226U

CN211438226U - Electric drill bit for building with locate function

Info

Publication number: CN211438226U
Application number: CN201922071602.7U
Authority: CN
Inventors: 徐行; 郑波; 王国清
Original assignee: Zhongwu Architectural Design Engineering Changzhou Co ltd
Current assignee: Zhongwu Architectural Design Engineering Changzhou Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-08
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to a drill bit of an electric drill for buildings with positioning function, belonging to the technical field of building accessories; the positioning mechanism is embedded in the groove, a positioning rod in the positioning mechanism penetrates through the lower side of the groove and then is exposed out of the lower side of the drill bit, the drill rod is fixed at the upper end of the drill bit and is in an integrated structure with the drill bit, the limiting mechanism is sleeved on the outer side of the lower end of the drill rod, and a fixing plate in the limiting mechanism is connected with the lower end of the drill rod in a rotating mode through a bearing; fix a position through positioning mechanism, make the drill bit be located the center of drilling, then adsorb the sucking disc among the stop gear on glossy wall to the phenomenon that can prevent to skid, the utility model has the advantages of it is reasonable to set up, the cost of manufacture is low.

Description

Electric drill bit for building with locate function

Technical Field

The utility model relates to a building accessory technical field, concretely relates to electric drill bit for building with locate function.

Background

The electric drill is the drilling machines that utilizes the electricity to do power, conventional product among the electric tool, also the electric tool class product that the demand is the biggest, the theory of operation of electric drill is that the electric motor rotor of electromagnetism rotation type or the reciprocating type small capacity motor of electromagnetism does the magnetic field cutting and does work the operation, through drive mechanism drive operation device, drive the power that the gear increases the drill bit, thereby make the drill bit scrape the object surface, better hole wears the object, but when using the electric drill to strike comparatively smooth wall, the phenomenon of skidding appears very easily, one can influence the efficiency of drilling, two come to produce great potential safety hazard to the operation of actually strikeing the brill, influence safe in utilization, and strikeing the brill then can destroy the wall body very easily, be not applicable to smooth wall use such as marble or ceramic tile, treat to improve urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design, convenient to use's electric drill bit for building with locate function, fix a position through positioning mechanism, make the drill bit be located the center of drilling, then adsorb the sucking disc among the stop gear on glossy wall to can prevent the phenomenon of skidding.

In order to achieve the above object, the utility model adopts the following technical scheme: the positioning mechanism is embedded in the groove, a positioning rod in the positioning mechanism penetrates through the lower side of the groove and then is exposed out of the lower side of the drill bit, the drill rod is fixed at the upper end of the drill bit and is in an integrated structure with the drill bit, the limiting mechanism is sleeved on the outer side of the lower end of the drill rod, and a fixing plate in the limiting mechanism is connected with the lower end of the drill rod in a rotating mode through a bearing;

the positioning mechanism also comprises a spring and a sliding plate, the spring is fixed on the upper end of the positioning rod, the upper end of the spring is fixedly connected with the inner side wall of the upper side of the groove, sliding grooves are formed in the inner side walls of the left side and the right side of the groove, sliding plates are arranged in the sliding grooves in a sliding manner, and the sliding plates on the left side and the right side are respectively fixed on the left side and the right side of the upper end;

above-mentioned stop gear still contains sucking disc and guide bar, and the equiangular is equipped with the several through-hole on the fixed plate, and equal activity is inserted in the through-hole and is equipped with the guide bar, all is fixed with the stopper on the upper end of guide bar, and the lower surface of stopper and the upper surface contact setting of fixed plate all are fixed with the sucking disc on the lower extreme of guide bar, and this sucking disc is the coplanar setting with the lower extreme of locating lever.

Furthermore, the inside of drilling rod be equipped with the cavity, this cavity is embedded to be equipped with the cooling tube, the end of intaking of cooling tube is connected through the play water end of pipeline with the suction pump after passing the upper end of cavity left side wall, the middle-end of cooling tube is "S" shape setting, the play water end of cooling tube passes the left side wall of cavity in proper order after, is connected with the end of intaking of suction pump, the suction pump is fixed on the outer rampart of drilling rod upper end, the equidistant cover of lower extreme of cooling tube is equipped with the several fin, the lower extreme of this fin is inserted and is established the inside at the drill bit.

Furthermore, a plurality of limiting grooves are fixed on the outer annular wall at the upper end of the drill rod in an equiangular mode and limit with the convex points inside the electric drilling machine body.

Furthermore, a tempered martensite layer is sintered on the inner side wall of the groove.

Further, the guide bar on the cover be equipped with spacing pipe, this spacing pipe sets up in the downside of fixed plate, spacing pipe top spin has connect the pilot pin, this pilot pin passes behind spacing pipe, contradicts on the rubber strip, the rubber strip is fixed on the guide bar, the upside activity of rubber strip is inserted and is established in the through-hole.

Furthermore, the guide rod is provided with a scale layer, and the scale layer is adjacent to the rubber strip.

After the structure is adopted, the beneficial effects of the utility model are that:

1. the drill bit is positioned by the positioning mechanism, so that the drill bit is positioned at the center of the drilled hole, and then the sucking disc in the limiting mechanism is adsorbed on the smooth wall surface, so that the slipping phenomenon can be prevented;

2. a guide rod is fixed on a sucker in the limiting mechanism, and the guide rod is movably inserted in a through hole in the fixing plate, so that the drill bit can be limited while the movement of the drill bit is not hindered, and the stability of the drill bit is improved;

3. the downside at the drill bit is established in the locating lever dew, contradicts through the spring, when fixing a position, and the top of locating lever is contradicted on the centre of a circle in the hole that needs to bore, and when drilling, the locating lever compresses the spring to the recess internal compression to do not hinder the drill bit drilling.

Drawings

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

Fig. 2 is a front sectional view of fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is a schematic structural diagram of the middle fixing plate of the present invention.

Fig. 6 is a hierarchical view of the middle groove of the present invention.

Fig. 7 is a schematic structural diagram of the middle positioning rod of the present invention.

Description of reference numerals:

the drill bit comprises a drill bit 1, a drill rod 2, a positioning mechanism 3, a positioning rod 3-1, a spring 3-2, a sliding plate 3-3, a limiting mechanism 4, a fixing plate 4-1, a sucker 4-2, a guide rod 4-3, a limiting block 4-4, a through hole 5, a groove 6, a sliding groove 6-1, a cavity 7, a cooling pipe 8, a water pump 9, a fin 10, a limiting groove 11, a tempered martensite layer 12, a limiting pipe 13, a positioning bolt 14, a rubber strip 15 and a scale layer 16.

The specific implementation mode is as follows:

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the following technical solutions are adopted in the present embodiment: it comprises a drill bit 1, a drill rod 2, a positioning mechanism 3 and a limiting mechanism 4, wherein the lower end of the drill bit 1 is provided with a groove 6, the inner side wall of the groove 6 is sintered with a tempered martensite layer 12 to increase the strength of the drill bit 1, the positioning mechanism 3 is embedded in the groove 6, a positioning rod 3-1 in the positioning mechanism 3 is exposed at the lower side of the drill bit 1 after passing through the lower side of the groove 6, the positioning mechanism 3 also comprises a spring 3-2 and a sliding plate 3-3, the upper end of the positioning rod 3-1 is welded and fixed with the spring 3-2, the upper end of the spring 3-2 is welded and fixed with the inner side wall at the upper side of the groove 6, the inner side walls at the left and right sides of the groove 6 are both provided with a chute 6-1, the sliding grooves 6-1 are internally and slidably provided with sliding plates 3-3, and the sliding plates 3-3 on the left side and the right side are respectively welded and fixed on the left side and the right side of the upper end of the positioning rod 3-1; the upper end of a drill bit 1 is provided with a drill rod 2, the drill rod 2 and the drill bit 1 are integrally formed, a cavity 7 is formed in the drill rod 2, a cooling pipe 8 is embedded in the cavity 7, the water inlet end of the cooling pipe 8 penetrates through the upper end of the left side wall of the cavity 7 and then is connected with the water outlet end of a water suction pump 9 through a pipeline, the middle end of the cooling pipe 8 is arranged in an S shape, the water outlet end of the cooling pipe 8 sequentially penetrates through the left side wall of the cavity 7 and then is connected with the water inlet end of the water suction pump 9, the water suction pump 9 is fixed on the outer ring wall of the upper end of the drill rod 2 through a bolt, a plurality of fins 10 are sleeved on the lower end of the cooling pipe 8 at equal intervals, the lower ends of the fins 10 are inserted in the drill bit 1, the temperature on the drill bit 1 is reduced through the cooperation of the fins 10 and the cooling pipe 8, the service life of the drill, the installation is convenient, the limiting mechanism 4 is sleeved outside the lower end of the drill rod 2, a fixing plate 4-1 in the limiting mechanism 4 is connected with the lower end of the drill rod 2 in a rotating mode through a bearing, the bearing is embedded in the fixing plate 4-1, the outer ring of the bearing is welded and fixed with the inner side wall of the fixing plate 4-1, and the inner ring of the bearing is welded and fixed with the lower end of the drill rod 2; the limiting mechanism 4 also comprises a sucking disc 4-2 and a guide rod 4-3, a plurality of through holes 5 are arranged at equal angles on the fixing plate 4-1, the guide rod 4-3 is movably inserted in each through hole 5, a limiting block 4-4 is welded and fixed on the upper end of each guide rod 4-3, the lower surface of each limiting block 4-4 is in contact with the upper surface of the fixing plate 4-1, the sucking disc 4-2 is fixedly adhered on the lower end of each guide rod 4-3, the sucking disc 4-2 and the lower end of each positioning rod 3-1 are arranged in the same plane, a limiting pipe 13 is sleeved on each guide rod 4-3, the limiting pipe 13 is arranged on the lower side of the fixing plate 4-1, a positioning bolt 14 is screwed on each limiting pipe 13, after the positioning bolt 14 penetrates through each limiting pipe 13, each rubber strip 15 is adhered and fixed on each guide rod 4-3, the upper side of the rubber strip 15 is movably inserted into the through hole 5, the distance of the drill bit 1 penetrating into the wall surface can be determined through the limiting pipe 13, the scale layer 16 is carved on the guide rod 4-3, the scale layer 16 is arranged adjacent to the rubber strip 15, and the position of the limiting pipe 13 can be accurately adjusted through the scale layer 16.

The working principle of the specific embodiment is as follows: before the use, the cooling pipe 8 is filled with cooling liquid, when the cooling device is used, the drill rod 2 is installed on an electric drilling machine, the hole center needing to be drilled is marked, the positioning bolt 14 is firstly loosened, the position of the limiting pipe 13 is adjusted according to the depth of the hole needing to be drilled, the positioning bolt 14 is rotated, the positioning bolt 14 abuts against the rubber strip 15, the limiting pipe 13 is fixed, the bottom end of the positioning rod 3-1 abuts against the hole center, the drill bit 1 is then righted, the sucker 4-2 is adsorbed on a smooth wall surface, the electric drilling machine is started, the electric drilling machine drives the drill bit 1 to rotate through the drill rod 2, when the drill bit 1 rotates towards the wall body, the positioning rod 3-1 is compressed inwards, the sliding plates 3-3 on the two sides of the positioning rod 3-1 slide in the sliding groove 6-1, so that the work of the drill bit 1 is not hindered, the drill bit 1 generates heat in the working process, then the water suction pump 9 is started, the water suction pump 9 drives cooling liquid inside the cooling pipe 8 to do circulating motion, so that cold and heat exchange can be conducted between the cooling liquid and the fins 10, the temperature on the drill bit 1 is further reduced, the service life of the drill bit 1 is prolonged, when the fixing plate 4-1 abuts against the limiting pipe 13, the electric drilling machine is turned off, at the moment, drilling is completed, the drill bit 1 is pulled down, and the positioning rod 3-1 is ejected out through the spring 3-2, so that the next use is not affected.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the drill bit 1 is positioned at the center of a drilled hole through the positioning mechanism 3, and then the sucking disc 4-2 in the limiting mechanism 4 is adsorbed on a smooth wall surface, so that the slipping phenomenon can be prevented;

2. a guide rod 4-3 is fixed on a sucker 4-2 in the limiting mechanism 4, and the guide rod 4-3 is movably inserted in a through hole 5 on the fixing plate 4-1, so that the drill bit 1 can be limited while the movement of the drill bit 1 is not hindered, and the stability of the drill bit 1 is improved;

3. the positioning rod 3-1 is exposed at the lower side of the drill bit 1 and is abutted by the spring 3-2, the top end of the positioning rod 3-1 is abutted against the circle center of a hole to be drilled during positioning, and the spring 3-2 is compressed into the groove 6 by the positioning rod 3-1 during drilling, so that the drilling of the drill bit 1 is not hindered;

4. the inside of drilling rod 2 is equipped with cavity 7, is equipped with cooling tube 8 in the cavity 7, and the lower pot head of cooling tube 8 is equipped with fin 10, and produced heat when drilling of drill bit 1 is drawn to accessible fin 10, and fin 10 carries out cold and hot exchange rather than through cooling tube 8 to play the effect of cooling to drill bit 1.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an electric drill bit for building with locate function which characterized in that: the drill bit comprises a drill bit (1), a drill rod (2), a positioning mechanism (3) and a limiting mechanism (4), wherein a groove (6) is formed in the lower end of the drill bit (1), the positioning mechanism (3) is embedded in the groove (6), a positioning rod (3-1) in the positioning mechanism (3) penetrates through the lower side of the groove (6) and then is exposed out of the lower side of the drill bit (1), the drill rod (2) is fixed at the upper end of the drill bit (1), the drill rod (2) and the drill bit (1) are of an integrated structure, the limiting mechanism (4) is sleeved on the outer side of the lower end of the drill rod (2), and a fixing plate (4-1) in the limiting mechanism (4) is in rotary connection with the lower end of the;

the positioning mechanism (3) further comprises a spring (3-2) and a sliding plate (3-3), the spring (3-2) is fixed at the upper end of the positioning rod (3-1), the upper end of the spring (3-2) is fixedly connected with the inner side wall of the upper side of the groove (6), sliding grooves (6-1) are formed in the inner side walls of the left side and the right side of the groove (6), the sliding plates (3-3) are arranged in the sliding grooves (6-1) in a sliding mode, and the sliding plates (3-3) on the left side and the right side are respectively fixed at the left side and the right side of the upper end of the positioning rod;

the limiting mechanism (4) further comprises a sucker (4-2) and a guide rod (4-3), a plurality of through holes (5) are formed in the fixed plate (4-1) at equal angles, the guide rod (4-3) is movably inserted in the through holes (5), the upper end of the guide rod (4-3) is fixedly provided with a limiting block (4-4), the lower surface of the limiting block (4-4) is arranged in contact with the upper surface of the fixed plate (4-1), the lower end of the guide rod (4-3) is fixedly provided with the sucker (4-2), and the sucker (4-2) and the lower end of the positioning rod (3-1) are arranged on the same plane.

2. The electric drill bit with positioning function for building of claim 1, characterized in that: the inside of drilling rod (2) be equipped with cavity (7), this cavity (7) is embedded to be equipped with cooling tube (8), the end of intaking of cooling tube (8) passes behind the upper end of cavity (7) left side wall, be connected through the play water end of pipeline with suction pump (9), the middle-end of cooling tube (8) is "S" shape setting, the play water end of cooling tube (8) passes behind the left side wall of cavity (7) in proper order, be connected with the end of intaking of suction pump (9), suction pump (9) are fixed on the outer rampart of drilling rod (2) upper end, equidistant cover is equipped with several fin (10) on the lower extreme of cooling tube (8), the lower extreme of this fin (10) is inserted and is established the inside of drill bit (1).

3. The electric drill bit with positioning function for building of claim 1, characterized in that: a plurality of limiting grooves (11) are fixed on the outer ring wall of the upper end of the drill rod (2) at equal angles.

4. The electric drill bit with positioning function for building of claim 1, characterized in that: a tempered martensite layer (12) is sintered on the inner side wall of the groove (6).

5. The electric drill bit with positioning function for building of claim 1, characterized in that: guide bar (4-3) on the cover be equipped with spacing pipe (13), this spacing pipe (13) set up in the downside of fixed plate (4-1), spacing pipe (13) top spin has connect stop cock (14), this stop cock (14) pass spacing pipe (13) back, contradict on rubber strip (15), rubber strip (15) are fixed on guide bar (4-3), the upside activity of rubber strip (15) is inserted and is established in through-hole (5).

6. The electric drill bit with positioning function for building of claim 5, wherein: the guide rod (4-3) is provided with a scale layer (16), and the scale layer (16) is arranged adjacent to the rubber strip (15).