CN210336460U

CN210336460U - Multifunctional drill bit assembly

Info

Publication number: CN210336460U
Application number: CN201920645780.3U
Authority: CN
Inventors: 游明司
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-04-17
Anticipated expiration: 2029-05-07

Abstract

The utility model provides a pair of multifunctional drill bit assembly, including connecting piece, fixed set up in the joint of the one end of connecting piece and with joint swing joint's sleeve and drill bit, connect and set up with connecting piece integrated into one piece, the sleeve passes through elastic fastener with the joint and is connected, the drill bit passes through threaded connection with the joint. The utility model provides a multifunctional drill bit assembly, which solves the problem that the multifunctional drill bit assembly can only have the hammering function and can be used for installing internal forced expansion bolts and can not be used for installing external pulling and forcing expansion bolts and nylon expansion bolts which are widely used in the market; the problem that the expansion bolt is only applicable to expansion bolts of a few specifications which need to be installed by drilling upwards is solved, and the expansion bolt cannot be comprehensively applied to installation and use of expansion bolts of various types from small to large; the problem of use conventional drill bit when installation on the drill body draw the depth mark line and be shielded by the dust and cause the drilling too dark or too shallow and waste time and work efficiency is solved.

Description

Multifunctional drill bit assembly

Technical Field

The utility model relates to a drill bit especially relates to a multi-functional drill bit of disconnect-type control drill bit degree of depth.

Background

The drill bit capable of controlling the drilling depth in the prior art cannot realize the multifunctionality, and if the drill bit combination has the functions of depth scaling, hammering drawing and the like, the similar combination in foreign countries has high manufacturing cost due to the structural problem of integral forming, and the drill bit of the type can not process a thread groove capable of discharging mud powder on a drill rod due to the structural problem and only can be suitable for upward vertical drilling which can enable dust to fall freely, so that the limited products are only limited to be used in a few specifications. The similar foreign products can only be used for installing internal forced expansion bolts needing hammering structurally, the expansion bolts are mostly used for installing horizontal drilling holes or downward drilling holes on the wall surface, the expansion bolts are usually externally pulled and forced expansion bolts, and the existing foreign designs cannot be used for installing the widely used external pulled and forced expansion bolts or light nylon expansion bolts.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at: a multi-functional drill bit assembly is provided that is separate and combines drilling, hammering, and pulling together.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

a multifunctional drill bit assembly comprises a connecting piece, a joint fixedly arranged at one end of the connecting piece, a sleeve movably connected with the joint and a drill bit, wherein the joint and the connecting piece are integrally formed;

furthermore, the joint also comprises an arc groove fixedly arranged on the outer surface of the joint;

furthermore, a groove is arranged in the sleeve, and an elastic sheet and a steel ball are fixedly arranged on the groove.

As a further aspect of the present invention: the sleeve comprises a sleeve for an internal forced expansion bolt, a sleeve for an external forced expansion bolt and a sleeve for a light nylon expansion bolt.

Further, the sleeve for the internal-forced expansion bolt comprises a first sleeve main body, a first step fixedly arranged in the first sleeve main body, a second step fixedly arranged at one end of the first step, and an impact rod fixedly arranged at the other end of the first sleeve main body and used for the internal-forced expansion bolt;

further, the second step is of an inner hexagonal structure;

furthermore, a first elastic sheet and a steel ball are fixedly arranged in the second step;

further, the impact bar is integrally formed with the first sleeve body.

Similarly, the sleeve for the forced expansion bolt comprises a second sleeve main body, a first through hole penetrating through the second sleeve main body and a third step fixedly arranged at one end of the second sleeve main body;

further, the third step is of an inner hexagonal structure;

furthermore, an inner hexagonal sleeve structure matched with a hexagonal nut of the external forcing type expansion bolt is fixedly arranged in the third step.

As a further aspect of the present invention: the cross section of the joint is in a hexagonal shape or a square shape or any other shape with edges and corners.

As a further aspect of the present invention: the drill bit is a separated drill bit with a drill body provided with a spiral groove, one end of the drill bit is provided with a hard alloy drill edge, the middle section of the drill bit is provided with a thread groove capable of discharging mud powder, the other end of the drill bit is provided with threads, and the drill bit is connected with the joint through threads.

The utility model has the advantages that: the utility model provides a multifunctional drill bit component, 1, the cost can be greatly reduced, only the drill bit part with proper cost needs to be replaced after the drill bit is worn; 2. the defect that the structure can only drill upwards is solved, and the hole drilling device cannot be applied to horizontal or downward drilling on the ground; 3. the problem that the bolt can only be used for installing the internal forced expansion bolt with a hammering function and cannot be used for installing the external forced expansion bolt and the nylon expansion bolt which are widely used in the market is solved; 4. the problem that the expansion bolt is only applicable to expansion bolts of a few specifications which need to be installed by drilling upwards is solved, and the expansion bolt cannot be comprehensively applied to installation and use of expansion bolts of various types from small to large; 5. the problem of use conventional drill bit when installation on the drill body draw the depth mark line and be shielded by the dust and cause the drilling too dark or too shallow and waste time and work efficiency is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic front view of a connector according to the present invention;

FIG. 2 is a front view of the drill of the present invention;

FIG. 3 is a schematic front view of the connection of the connecting member and the drill bit of the present invention;

fig. 4 is a schematic front view of a first embodiment of the present invention;

fig. 5 is a schematic front view of a first sleeve according to a second embodiment of the present invention;

fig. 6 is a schematic front view of a second embodiment of the present invention;

fig. 7 is a front view of a second sleeve according to a third embodiment of the present invention.

FIG. 8 is a schematic front view of a third embodiment of the present invention

Fig. 9 is a front view of a third sleeve according to a fourth embodiment of the present invention

FIG. 10 is a schematic front view of a fourth embodiment of the present invention

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention.

The utility model discloses a multifunctional drill bit assembly, including connecting piece 1, fixed set up in the joint 2 of the one end of connecting piece 1, fixed set up in the scale plane 2-3 of hexagonal joint face and with joint 2 swing joint's sleeve and drill bit 3, connect 2 and the setting of connecting piece 1 integrated into one piece.

The first embodiment is as follows:

when only a drill bit is needed for drilling, as shown in fig. 1 to 3, the drill bit comprises a connecting piece 1, a joint 2 fixedly arranged at one end of the connecting piece 1, and a drill bit 3 movably connected with the joint 2;

the connecting piece 1 is fixedly connected with the electric hammer chuck 4, and the joint 2 at the other end of the connecting piece 1 is in threaded connection with the drill bit 3;

furthermore, an internal thread 2-1 is fixedly arranged on the joint 2, an external thread 3-1 is fixedly arranged at the connecting end of the drill bit 3, and the external thread (not marked) is matched with the internal thread 2-1 for screw connection;

the working principle of the embodiment is as follows: the working length of the drill bit 3 is consistent with the depth of installing the expansion bolt, the fixed-size disc surface 2-3 arranged on the end surface of the joint is larger than the diameter of the drill bit, and when the disc surface 2-3 is in contact with the wall body 00 during drilling, the required installation depth can be drilled.

Example two:

when the installation of the internal-forced expansion bolt is needed, the internal-forced expansion bolt is combined with the figure 1, the figure 3, the figure 5 and the figure 6, and comprises a connecting piece 1, a joint 2 fixedly arranged at one end of the connecting piece 1 and a first sleeve 5 movably connected with the joint 2;

the first sleeve 5 comprises a first step 5-1 fixedly arranged in the first sleeve 5, a second step 5-2 fixedly arranged at one end of the first step 5-1, and an impact rod 5-3 fixedly arranged at the other end of the first sleeve 5 and used for an internal-forced expansion bolt;

further, the second step 5-2 is provided with an inner hexagon matched with the joint 2;

further, a spring (not labeled) is fixedly arranged on the outer wall of the second step 5-2.

The working principle of the embodiment is as follows: the first sleeve 5 is arranged on the joint 2, the expansion bolt with the taper expander is arranged on the impact bar 5-3, the expansion bolt is fixedly connected with an electric hammer chuck 4 of the electric hammer through the connecting piece 1, and the internal-forced expansion bolt 6 is arranged in the wall body 00 by using the taper impact force of the electric hammer.

Example three:

when the installation of the external-forced expansion bolt is needed, the external-forced expansion bolt is combined with the figure 1, the figure 3, the figure 7 and the figure 8, and comprises a connecting piece 1, a joint 2 fixedly arranged at one end of the connecting piece 1 and a second sleeve 7 movably connected with the joint 2;

the second sleeve 7 comprises a third step 7-1 fixedly arranged in the second sleeve 7, a fourth step 7-2 fixedly arranged at one end of the third step 7-1, and an inner hexagonal hole 7-3 fixedly arranged at the other end of the second sleeve 7 and used for an external force type expansion bolt;

further, the fourth step 7-2 is provided with an inner hexagon matched with the joint 2;

further, a spring (not labeled) is fixedly arranged on the outer wall of the fourth step 7-2.

The working principle of the embodiment is as follows: the second sleeve 7 is arranged on the joint 2, the expansion bolt with the taper is arranged in the inner hexagonal hole 7-3, and then the expansion bolt is fixedly connected with the electric hammer chuck 4 of the electric hammer through the connecting piece 1, so that the screw rod with the taper of the outward-pressing expansion bolt 8 is pulled outwards to perform expansion anchoring on the interior of the expansion bolt and be arranged in the wall body 00.

Example four:

when the nylon expansion bolt needs to be installed, as shown in fig. 1, fig. 3 and fig. 9 and fig. 10, the nylon expansion bolt comprises a connecting piece 1, a joint 2 fixedly arranged at one end of the connecting piece 1, a third sleeve 9 movably connected with the joint 2, and an inner hexagonal sleeve 9-2 connected to the third sleeve 9;

further, a spring 9-4 is arranged between the connection part of the impact rod 9-3 and the third sleeve 9;

furthermore, a snap spring 9-5 is arranged at the joint of the impact bar 9-3 and the third sleeve 9, and the position is limited and prevented from falling off through the snap spring 9-5.

The working principle of the embodiment is as follows: and (3) mounting the third sleeve 9 on the joint 2, and mounting the nylon expansion bolt 10 in a fifth step 9-6 hole of the third sleeve 9, so that the nylon expansion bolt is fixedly connected with the electric hammer chuck 4 of the electric hammer through the connecting piece 1, and the nylon expansion bolt 10 is hammered into the wall body 00.

The above contents are only used to illustrate the technical solution of the present invention, not to limit the protection scope of the present invention, and the simple modification or equivalent replacement performed by the technical solution of the present invention by those of ordinary skill in the art does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. The utility model provides a multifunctional drill bit assembly, includes the connecting piece, fixed set up in the joint of the one end of connecting piece, and with joint swing joint's sleeve and drill bit, its characterized in that: the joint and the connecting piece are integrally formed, the sleeve is connected with the joint through an elastic fastener, and the drill bit is connected with the joint through threads; the connector and the connector at the other end are integrally formed, the connector at one end is used for connecting an electric hammer chuck, the other end is a hexagonal connector, and an internal thread is arranged on the end face of the connector and is in threaded connection with the split type drill bit through the internal thread.

2. A multi-function drill bit assembly as defined in claim 1, wherein: a groove is formed in the sleeve, and a steel ball and a spring plate are arranged in the groove.

3. A multi-function drill bit assembly as defined in claim 1, wherein: the sleeve comprises an internal-forced expansion bolt sleeve, wherein the internal-forced expansion bolt sleeve comprises a first sleeve main body, a first step fixedly arranged in the first sleeve main body, a second step fixedly arranged at one end of the first step, and an impact rod fixedly arranged at the other end of the first sleeve main body and used for the internal-forced expansion bolt.

4. A multi-function drill bit assembly as defined in claim 3, wherein: the structure of the second step is consistent with the shape of the joint, and an elastic sheet and a steel ball are fixedly arranged in the second step.

5. A multi-function drill bit assembly as defined in claim 3, wherein: the impact bar and the first sleeve main body are integrally formed.

6. A multi-function drill bit assembly as defined in claim 1, wherein: the sleeve comprises an externally-forced expansion bolt sleeve, the externally-forced expansion bolt sleeve comprises a second sleeve main body, a first through hole penetrating through the second sleeve main body, and a third step fixedly arranged at one end of the second sleeve main body.

7. A multi-function drill bit assembly as defined in claim 6, wherein: the third step is provided with a sleeve structure matched with a nut of the forced expansion bolt.

8. A multi-function drill bit assembly as defined in claim 6, wherein: the cross section of the joint is in a hexagonal or square shape.

9. A multi-function drill bit assembly as defined in any one of claims 1 to 8, wherein: the drill bit is a separated drill bit with a drill body provided with a spiral groove, one end of the drill bit is provided with a hard alloy drill edge, the middle section of the drill bit is provided with a thread groove capable of discharging mud powder, and the other end of the drill bit is provided with a thread.