CN217072676U

CN217072676U - Detachable base and drill bit assembly

Info

Publication number: CN217072676U
Application number: CN202220749366.9U
Authority: CN
Inventors: 钱俊华
Original assignee: Suzhou Lituo Hardware Industry Co ltd
Current assignee: Suzhou Lituo Hardware Industry Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-29
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a can dismantle base and drill bit assembly, can dismantle the base and include: the base body is hollow and is provided with a hollow cavity, and the outer side wall of the base body is provided with a connecting hole communicated with the hollow cavity; and the clamping piece is partially arranged in the connecting hole and partially protrudes out of the connecting hole to the inside of the hollow cavity. The utility model discloses a can dismantle base and drill bit assembly has the manufacturing cost who saves drill bit assembly and promotes the advantage of the change efficiency of drill bit.

Description

Detachable base and drill bit assembly

Technical Field

The present invention relates to a drill bit assembly, and more particularly to a detachable base and a drill bit assembly.

Background

In the installation process of home decoration or other buildings, holes are needed to be drilled on wooden products in particular, and a common drilling tool is generally adopted. In order to control the drilling depth, the drill bit is sleeved with a base, and the length of the drill bit extending out of the base is the drilling depth. Corresponding drilling tools need to be manually and frequently disassembled and assembled aiming at holes with different sizes. The existing base is not detachably connected with the drill bit, so that the drill bit of each type is required to be purchased completely, the cost is greatly increased, and the carrying is inconvenient during operation. The base is perhaps for dismantling with the drill bit and be connected, and connected mode usually is for seting up the draw-in groove on the drill bit body, then uses the spring coil to block the drill bit body on the base. Although this kind of mounting means can match the drill bit of multiple specification by a base, when changing the drill bit, need peel off the drill bit body with the spring coil with the help of extra instrument, take out the drill bit body, then the drill bit body of new model of installation matches, fixes the spring coil card on the base in the draw-in groove again. The replacement process is complicated, and the replacement efficiency and time of a user are greatly reduced.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can dismantle base and drill bit assembly, it can enough save drill bit assembly's cost, can promote the change efficiency of drill bit again.

In order to achieve the above object, the utility model provides a detachable base, include: the base body is hollow and is provided with a hollow cavity, and the outer side wall of the base body is provided with a connecting hole communicated with the hollow cavity; and the clamping piece is partially arranged in the connecting hole and partially protrudes out of the connecting hole to the inside of the hollow cavity.

In one or more embodiments, the clip is spherical.

In one or more embodiments, the hole diameter of the connection hole gradually decreases from the outer wall of the base body to the hollow cavity, and a fastening piece is sleeved on the position, located at the connection hole, of the base body.

In one or more embodiments, the outer wall of the base body is provided with a limiting groove for limiting the fastener.

In one or more embodiments, the fastener is hoop-shaped.

In one or more embodiments, the aperture of the connection hole gradually increases and then gradually decreases from the outer wall of the base body to the hollow cavity.

In one or more embodiments, the base body defines a connecting groove, and the elastic pad is connected to the connecting groove.

In one or more embodiments, a material saving hole communicated with the hollow cavity is formed in a side wall of the base body.

The utility model provides a drill bit assembly, include the drill bit and as above can dismantle the base.

In one or more embodiments, a clamping groove matched with the clamping piece is formed in the side wall of the drill bit.

Compared with the prior art, according to the utility model discloses a can dismantle base and drill bit assembly, realize through the joint spare that can dismantle in the base that the joint between the drill bit of base and each model is connected, replace the bolted connection among the prior art to the change efficiency of drill bit has been promoted, and the cost of drill bit assembly has been reduced.

Drawings

FIG. 1 is a schematic view of a drill bit and a removable base assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a base body according to an embodiment of the present invention;

FIG. 3 is a schematic view of a portion of a drill bit according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a joint of a base body and a clip according to an embodiment of the present invention;

fig. 5 is a partial sectional view of a joint of a base body and a clip according to another embodiment of the present invention.

Description of the main reference numerals:

1. a drill bit; 11. a clamping groove; 12. a connecting portion; 2. a base body; 21. a hollow cavity; 22. connecting holes; 23. a limiting groove; 24. connecting grooves; 25. a material saving hole; 3. a clamping piece; 4. a fastener.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 4, the drill bit assembly according to an embodiment of the present invention may include a detachable base and a drill bit 1 connected to each other.

The drill assembly may comprise a removable base and a plurality of different types of drill bits 1, the different types of drill bits 1 being capable of drilling different sizes of boreholes. The detachable base is connected to a drill bit 1 when the drill bit assembly is in use. Wherein, the drill bits 1 with different models are standard models on the market.

As shown in fig. 1 and 3, in one embodiment, the drill bit 1 may include a connection portion 12 for connection to a power tool and a working portion (not shown) for drilling. The outer peripheral wall of the drill bit 1 can be provided with a clamping groove 11.

As shown in fig. 2 and 4, the detachable base may include a base body 2 and a clip 3. The base body 2 is hollow and has a hollow cavity 21, and a connection hole 22 communicated with the hollow cavity 21 is formed on the outer side wall of the base body 2. The clip member 3 is located in the connection hole 22 and has a portion protruding out of the connection hole 22 into the hollow cavity 21. One end of the drill bit 1 can penetrate through the hollow cavity 21 and be connected with the clamping piece 3 in a clamping mode. Thereby realizing the clamping connection of the detachable base and the drill bit 1.

Two connecting holes 22 can be formed in the radial side wall of the base body 2, and the clamping piece 3 is placed in each connecting hole 22.

As shown in fig. 4, in one embodiment, the clip member 3 may be spherical. The spherical clamping piece 3 has a smooth surface and can be tightly clamped and connected with the clamping groove 11.

As shown in fig. 4, in an embodiment, the aperture of the connection hole 22 gradually decreases from the outer wall of the base body 2 to the hollow cavity 21, and the fastening member 4 is sleeved on the base body 2 at the connection hole 22. The fastener 4 functions to fix the chucking member 3 and the coupling hole 22.

As shown in fig. 2, the outer wall of the base body 2 is provided with a limiting groove 23. The limiting groove 23 can play a role in positioning and limiting the fastening piece 4, and is convenient for assembling the fastening piece 4 and the base body 2.

In one embodiment, as shown in fig. 1, the fastening member 4 is in the shape of a hoop and is disposed around the periphery of the base body 2. In other embodiments, the fastening member 4 may be a ring having elasticity, as long as it can function to fix the fastening member 3 and the connection hole 22.

As shown in fig. 5, in another embodiment, the aperture of the connection hole 22 may gradually increase and then gradually decrease from the outer wall of the base body 2 to the hollow cavity 21. The clamping piece 3 can be clamped and connected with the connecting hole 22.

As shown in fig. 2, the base body 2 may be formed with a connection groove 24, and an elastic pad may be connected to the connection groove 24. Because the base body 2 can rotate with the drill bit assembly or not rotate during the drilling process of the drill bit assembly; when the base body 2 can rotate along with the drill bit assembly, the elastic pad can play a role in protecting the surface of the base material needing to be drilled from being scratched.

The outer side wall of the base body 2 can be provided with a material saving hole 25 communicated with the hollow cavity 21, and the material receiving hole can play a role in saving production materials of the base body 2, so that the effect of reducing the production cost of the base body 2 is achieved.

When changing drill bit 1 and can dismantle the base, only need with drill bit 1 and can dismantle the base and dismantle from electric tool, then the application of force can directly with drill bit 1 with can dismantle the base separation in the axial of drill bit 1, then select suitable drill bit 1, will dismantle the base cover again and locate new drill bit 1 on and make joint spare 3 be connected with 11 joints in joint groove, can accomplish the process of changing drill bit assembly.

To sum up, the utility model discloses a can dismantle base and drill bit assembly realizes dismantling the joint between the drill bit 1 of base and each model through joint spare 3 and is connected, replaces the spring coil among the prior art to connect to promote the change efficiency of drill bit 1 greatly, and reduced drill bit assembly's cost.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A removable base, comprising:

the base body is hollow and is provided with a hollow cavity, and the outer side wall of the base body is provided with a connecting hole communicated with the hollow cavity; and

and the clamping piece is partially arranged in the connecting hole and partially protrudes out of the connecting hole to the inside of the hollow cavity.

2. The removable base of claim 1 wherein said snap-fit member is spherical.

3. The removable base of claim 2, wherein the hole diameter of the connecting hole is gradually reduced from the outer wall of the base body to the hollow cavity, and a fastening member is sleeved on the base body at the connecting hole.

4. The removable base of claim 3, wherein the outer wall of the base body defines a retaining groove for retaining the fastener.

5. The removable base of claim 3 wherein the fastener is in the form of a hoop.

6. The removable base of claim 2, wherein the aperture of the connection hole gradually increases and then gradually decreases from the outer wall of the base body to the hollow cavity.

7. The detachable base of claim 1, wherein the base body defines a connecting slot, and an elastic pad is connected to the connecting slot.

8. The removable base of claim 1, wherein a material-saving hole is formed in a sidewall of the base body and communicates with the hollow cavity.

9. A drill bit assembly comprising a drill bit and a removable base as claimed in any one of claims 1 to 8.

10. The drill bit assembly of claim 9, wherein the sidewall of the drill bit defines a snap-fit groove that mates with the snap-fit member.