CN214819344U

CN214819344U - Woodworking drill bit

Info

Publication number: CN214819344U
Application number: CN202120510545.2U
Authority: CN
Inventors: 蔡平; 林玲
Original assignee: Zhejiang Rongcheng Tools Co ltd
Current assignee: Zhejiang Rongcheng Tools Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-23
Anticipated expiration: 2031-03-10

Abstract

The utility model relates to a carpenter's drill bit, including cutting head and drilling rod, the cutting head is connected with the connecting rod towards the one end of drilling rod, the one end that the cutting head was kept away from to the connecting rod is provided with the connecting plate, one side of connecting plate towards the connecting rod can be dismantled along circumference and be connected with two at least spacers that encircle in the connecting rod outside, the lateral wall of connecting rod is provided with two at least fixed blocks, all along circumference interval all set up the fixed orifices that supplies the fixed block to pass on the spacer, the drill rod is offered the spread groove that supplies the connecting plate card to go into towards the one end of cutting head, the inside wall of spread groove is provided with two and supplies fixed block card to go into and gliding constant head tank, can dismantle between connecting plate and the spread groove diapire and be connected. When the cutting head is damaged, the cutting head can be detached and replaced by a new cutting head, and the whole drill bit does not need to be scrapped, so that the material is saved, and the service life of the drill bit is prolonged.

Description

Woodworking drill bit

Technical Field

The application relates to the field of drill bits, in particular to a woodworking drill bit.

Background

The opening of holes in wood typically requires the use of a wood drill to drill the wood. The woodworking drill bit is generally composed of a drill bit and a drill rod, and the drill bit and the drill rod are processed into a whole by steel.

At present, a patent with publication number CN201082558Y discloses a self-advancing carpentry drill bit, which comprises a blade body, wherein at least two spiral grooves are arranged on the blade body, and the top end of the blade body is provided with a screw head, a knife edge and a knife tip. The woodworking drill bit has smooth chip removal and is very suitable for drilling holes in wood materials.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the tool tip of the drill bit is damaged, the whole drill bit needs to be scrapped, so that resource waste is caused, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the cutting head damages and leads to the drill to be scrapped, this application provides a carpenter's drill.

The application provides a carpenter's drill bit adopts following technical scheme:

the utility model provides a woodworking drill bit, includes cutting head and drilling rod, the cutting head is connected with the connecting rod towards the one end of drilling rod, the one end that the cutting head was kept away from to the connecting rod is provided with the connecting plate, one side of connecting plate towards the connecting rod can be dismantled along circumference and be connected with two at least spacers that encircle in the connecting rod outside, the lateral wall of connecting rod is provided with two at least fixed blocks, all along the circumference interval all set up the fixed orifices that supplies the fixed block to pass on the spacer, the drill rod is offered the spread groove that supplies the connecting plate card to go into towards the one end of cutting head, the inside wall of spread groove is provided with two and supplies fixed block card to go into and gliding constant head tank, can dismantle between connecting plate and the spread groove diapire and be connected.

By adopting the technical scheme, when the cutting head is installed, the fixing blocks on the connecting rod are respectively clamped into the fixing holes in the positioning pieces, then the positioning pieces are installed on the connecting plates, then the connecting plates are installed in the connecting grooves, meanwhile, the fixing blocks are clamped into the positioning grooves, so that the cutting head is fixed on the drill rod, the cutting head can be detached and replaced by a new cutting head after being damaged, the whole drill bit does not need to be scrapped, the material is saved, and the service life of the drill bit is prolonged.

Optionally, one side of the connecting plate, which is far away from the cutting head, is connected with a limiting block for limiting rotation of the connecting plate, and a limiting groove for clamping the limiting block is formed in the bottom wall of the connecting groove.

Through adopting above-mentioned technical scheme, can restrict the connecting plate and rotate for the spread groove diapire after going into the spacing inslot with the stopper card.

Optionally, one side of the limiting block, which is far away from the connecting plate, is connected with a first magnet, and the bottom wall of the limiting groove is connected with a second magnet which attracts the first magnet.

Through adopting above-mentioned technical scheme, go into the spacing inslot with the stopper after, first magnet and second magnet can inter attraction to the restriction stopper breaks away from the spacing groove easily.

Optionally, the connecting plate sets up the mounting groove that the one end card of two at least confession spacers was gone into towards one side of connecting rod, there is the fastening strip that has deformability along circumferential connection on the inside wall of mounting groove, the fastening groove that confession fastening strip card was gone into is seted up to the lateral wall of spacer.

Through adopting above-mentioned technical scheme, go into the spacer card in the mounting groove, the fastening strip in the mounting groove receives the extrusion and deformation, goes into the mounting groove back when the complete card of spacer, and fastening strip reconversion and card go into the fastening inslot to fix the spacer in the mounting groove.

Optionally, one side of the connecting plate towards the connecting rod is connected with a fixing rod, a fixing groove for the fixing rod to be clamped in is formed in the connecting rod towards one side of the connecting plate, a rubber ring is connected to the inner side wall of the fixing groove along the circumferential direction, and the outer side wall of the fixing rod is tightly pressed against the inner side wall of the rubber ring.

Through adopting above-mentioned technical scheme, insert the dead lever back in the fixed slot on the connecting rod, the rubber ring in the fixed slot can the chucking dead lever to improve the firm in connection nature between connecting plate and the connecting rod.

Optionally, a chamfer is arranged at the edge of one end, away from the connecting plate, of the fixing rod.

Through adopting above-mentioned technical scheme, the chamfer can give dead lever guide effect to make things convenient for in the dead lever inserts the fixed slot, improve the installation effectiveness.

Optionally, a positioning block is connected to one end of the cutting head away from the drill rod.

By adopting the technical scheme, before drilling, the positioning block is firstly pushed against the position of the pre-drilled hole, so that the probability of slipping of the cutting head when the drilling is started is reduced, and the drilling quality and accuracy are improved.

Optionally, the surface of the drill rod is provided with an anti-rust layer.

By adopting the technical scheme, the anti-rust layer can protect the surface of the drill rod, so that the drill rod is prevented from rusting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the cutting head is damaged, the cutting head can be detached and replaced by a new cutting head without scrapping the whole drill bit, so that the material is saved and the service life of the drill bit is prolonged;

2. before drilling, the positioning block is firstly pushed against the position of the pre-drilled hole, so that the probability of slipping of the cutting head when the drilling is started is reduced, and the drilling quality and accuracy are improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view taken along plane A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of region B of FIG. 2;

fig. 4 is a schematic diagram of an explosive structure according to an embodiment of the present application.

Description of reference numerals: 1. a cutting head; 2. a drill stem; 21. connecting grooves; 22. positioning a groove; 23. a limiting groove; 231. a second magnet; 3. a connecting rod; 31. a fixed block; 32. fixing grooves; 321. a rubber ring; 4. a connecting plate; 41. a limiting block; 411. a first magnet; 42. mounting grooves; 421. fastening strips; 43. fixing the rod; 431. chamfering; 5. positioning plates; 51. a fixing hole; 52. a fastening groove; 6. and (5) positioning the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a carpenter's drill bit. Referring to fig. 1, the drilling head comprises a cutting head 1 and a drill rod 2, one end, far away from the drill rod 2, of the cutting head 1 is fixedly connected with a conical positioning block 6, before drilling, the positioning block 6 is firstly pushed against the position of a pre-drilled hole, the probability of slippage of the cutting head 1 when the drilling starts is reduced, and the drilling quality and accuracy are improved. An anti-rust layer is arranged on the surface of the drill rod 2, and the anti-rust layer is an iron red anti-rust paint coating. The anti-rust layer can provide protection for the surface of the drill rod 2, so that the drill rod 2 is prevented from rusting.

Referring to fig. 2 and 3, a connecting rod 3 with a circular cross section is integrally formed at one end of the cutting head 1 facing the drill rod 2, and two arc-shaped positioning pieces 5 are circumferentially installed at intervals on the outer side wall of the connecting rod 3. The homogeneous shaping in both sides that carry on the back mutually of the lateral wall of connecting rod 3 has fixed block 31, all sets up the fixed orifices 51 that supplies fixed block 31 to pass on the spacer 5. The connecting rod 3 is kept away from the one end of cutting head 1 and is installed and be circular shape connecting plate 4, and spacer 5 can be dismantled and connect on connecting plate 4, and drilling rod 2 is offered the spread groove 21 that supplies connecting plate 4 card to go into towards the one end of cutting head 1, can dismantle between connecting plate 4 and the spread groove 21 diapire and be connected. The cutting head 1 is mounted on the drill rod 2 by mounting two spacers 5 on the coupling rod 3, then mounting the spacers 5 on the coupling plate 4, and finally mounting the coupling plate 4 in the coupling groove 21.

Referring to fig. 2 and 4, two positioning grooves 22 for the fixing block 31 to be clamped and slid are formed in the inner side wall of the connecting groove 21 along the length direction of the drill rod 2, and when the connecting rod 3 is inserted into the connecting groove 21, the fixing block 31 is clamped into the positioning grooves 22, so that the connecting rod 3 is limited to rotate relative to the drill rod 2.

Referring to fig. 2 and 4, a limiting block 41 for limiting rotation of the connecting plate 4 is integrally formed on one side of the connecting plate 4 away from the cutting head 1, the limiting block 41 is triangular, a limiting groove 23 for the limiting block 41 to be clamped in is formed in the bottom wall of the connecting groove 21, and the outer side wall of the limiting block 41 is tightly attached to the inner side wall of the limiting groove 23. The first magnet 411 is fixedly connected to one side of the limiting block 41 away from the connecting plate 4, and the second magnet 231 attracted to the first magnet 411 is fixedly connected to the bottom wall of the limiting groove 23. After the limiting block 41 is clamped into the limiting groove 23, the first magnet 411 and the second magnet 231 can attract each other, so that the limiting block 41 is limited to be easily separated from the limiting groove 23, and the connecting plate 4 is fixed in the connecting groove 21.

Referring to fig. 3 and 4, the connecting plate 4 is provided with two arc-shaped mounting grooves 42 for the positioning pieces 5 to be respectively clamped into toward one side of the connecting rod 3, fastening strips 421 with semicircular cross sections are fixedly connected to the inner side walls of the mounting grooves 42 along the circumferential direction, and the fastening strips 421 are made of silica gel. The lateral wall that spacer 5 is close to the one end of connecting plate 4 is seted up and is supplied fastening strip 421 to go into fastening groove 52, goes into two mounting grooves 42 with two spacers 5 respectively card, makes fastening strip 421 card go into fastening groove 52 simultaneously to fix spacer 5 in mounting groove 42.

Referring to fig. 2 and 4, a fixing rod 43 parallel to the connecting rod 3 is fixedly connected to the middle of one side of the connecting plate 4 facing the connecting rod 3, a fixing groove 32 for the fixing rod 43 to be clamped in is formed in one side of the connecting rod 3 facing the connecting plate 4, and a chamfer 431 is formed in the edge of one end, far away from the connecting plate 4, of the fixing rod 43. The chamfer 431 enables the fixing lever 43 to be quickly inserted into the fixing groove 32. The inner side wall of the fixing groove 32 is fixedly connected with a rubber ring 321 along the circumferential direction, and the inner side wall of the rubber ring 321 tightly props against the outer side wall of the fixing rod 43. After the fixing rod 43 is inserted into the fixing groove 32 of the connecting rod 3, the rubber ring 321 in the fixing groove 32 can clamp the fixing rod 43, thereby improving the connection firmness between the connecting plate 4 and the connecting rod 3.

The application principle of a carpenter's drill bit of the embodiment of this application does: when the cutting head 1 is mounted, the fixing blocks 31 on the connecting rod 3 respectively penetrate through the fixing holes 51 on the two positioning pieces 5, one ends of the two positioning pieces 5 are respectively clamped into the mounting grooves 42 on the connecting plate 4, the limiting blocks 41 are clamped into the limiting grooves 23, the fixing blocks 31 are simultaneously clamped into the positioning grooves 22, the cutting head 1 is fixed on the drill rod 2, and the cutting head 1 can be detached and replaced by a new cutting head 1 after the cutting head 1 is damaged.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A woodworking drill, comprising a cutting head (1) and a drill rod (2), characterized in that: one end of the cutting head (1) facing the drill rod (2) is connected with a connecting rod (3), one end of the connecting rod (3) far away from the cutting head (1) is provided with a connecting plate (4), one side of the connecting plate (4) facing the connecting rod (3) is detachably connected with at least two positioning sheets (5) surrounding the outer side of the connecting rod (3) along the circumferential direction, at least two fixing blocks (31) are arranged on the outer side wall of the connecting rod (3) at intervals along the circumferential direction, fixing holes (51) for the fixing blocks (31) to penetrate through are formed in all the positioning pieces (5), one end of the drill rod (2) facing the cutting head (1) is provided with a connecting groove (21) for the connecting plate (4) to be clamped in, the inner side wall of the connecting groove (21) is provided with two positioning grooves (22) for the fixing block (31) to be clamped and slide, the connecting plate (4) is detachably connected with the bottom wall of the connecting groove (21).

2. The woodworking drill bit of claim 1, wherein: one side of the connecting plate (4) far away from the cutting head (1) is connected with a limiting block (41) used for limiting the rotation of the connecting plate (4), and a limiting groove (23) for clamping the limiting block (41) is formed in the bottom wall of the connecting groove (21).

3. The woodworking drill bit of claim 2, wherein: one side that connecting plate (4) were kept away from in stopper (41) is connected with first magnet (411), the diapire of spacing groove (23) is connected with second magnet (231) with first magnet (411) inter attraction.

4. The woodworking drill bit of claim 1, wherein: connecting plate (4) are seted up mounting groove (42) that the one end card of two at least confession spacers (5) was gone into towards one side of connecting rod (3), there is fastening strip (421) that have deformability along circumferential connection on the inside wall of mounting groove (42), fastening groove (52) that confession fastening strip (421) card was gone into are seted up to the lateral wall of spacers (5).

5. The woodworking drill bit of claim 1, wherein: connecting plate (4) are connected with dead lever (43) towards one side of connecting rod (3), connecting rod (3) are seted up towards one side of connecting plate (4) and are supplied fixed slot (32) that dead lever (43) card was gone into, there is rubber ring (321) inside wall along circumferential connection of fixed slot (32), the outside wall of the tight dead lever (43) in inside wall top of rubber ring (321).

6. The woodworking drill bit of claim 5, wherein: and a chamfer (431) is arranged at the edge of one end, away from the connecting plate (4), of the fixing rod (43).

7. The woodworking drill bit of claim 1, wherein: one end of the cutting head (1) far away from the drill rod (2) is connected with a positioning block (6).

8. The woodworking drill bit of claim 1, wherein: and an anti-rust layer is arranged on the surface of the drill rod (2).