CN220030545U - Three-edge woodworking drill for drilling - Google Patents

Abstract

The utility model discloses a three-edge woodworking drill for drilling, which comprises a drill handle and a drill bit arranged on the drill handle, wherein the drill bit comprises a cutting part arranged on the drill handle and a tip part arranged on the cutting part, the cutting part and the tip part are integrally formed, and the tip part is a triangular prism head. The utility model has simple and reasonable design, is beneficial to greatly improving the cutting force of drilling, more meets the requirements of improving the drilling efficiency and is beneficial to meeting the use requirements of users.

Description

Three-edge woodworking drill for drilling

Technical Field

The utility model relates to the technical field of woodworking drills, in particular to a three-edge woodworking drill for drilling.

Background

Because of the need to use a carpenter's drill to drill holes in wood products, it is known that carpenter's drills become one of the requisite devices in household products. For the existing two parts, namely a drill bit and a drill rod, the drill bit and the drill rod are integrally machined by steel materials, and threads are directly arranged on the drill bit, for example, chinese patent application publication No. CN216860065U discloses a high-efficiency woodworking drill, and the tip of the head is provided with a double thread which protrudes out of the double thread to greatly weaken the cutting force in the drilling, so that the drilling efficiency is reduced, and therefore, improvement is required for meeting the high-efficiency and simple requirements of modern users.

Disclosure of Invention

First, the technical problems to be solved

Aiming at the defects in the prior art, the utility model provides the three-edge woodworking drill for drilling, which is simple and reasonable in design, is beneficial to greatly improving the cutting force of drilling, and is more beneficial to improving the drilling efficiency and meeting the use requirements of users.

(II) technical proposal to be adopted

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the three-edge woodworking drill for drilling comprises a drill handle and a drill bit arranged on the drill handle, wherein the drill bit comprises a cutting part arranged on the drill handle and a tip part arranged on the cutting part, the cutting part and the tip part are integrally formed, and the tip part is a triangular prism head.

Preferably, the tip of the triangular head has equal length and equal three-sided radian.

Preferably, the tip portion lower portion extends to the cutting portion upper portion.

Preferably, the cutting part comprises a main body, wherein cutting edges and junk slots are arranged on the main body, the cutting edges and the junk slots are distributed at intervals, and the width of the junk slots is consistent with the diameter of the drill shank.

Preferably, the chip grooves and the cutting edges are helical, or the chip grooves and the cutting edges are linear.

Preferably, the cutting edge is narrow at the upper portion and wide at the lower portion.

Preferably, the drill shank comprises a shank body and a driving section arranged at the tail part of the shank body, the driving section comprises a first prism part and a second prism part, the first prism part and the second prism part are connected into a whole through a connecting part, and the connecting part is arc-shaped.

(III) technical effects to be achieved

Compared with the prior art, the utility model has the beneficial effects that:

the tip part of the drilling machine is a triangular head, the edge length of the tip part of the triangular head is equal in length and three-sided radian is the same, the drilling machine is simple and reasonable in design, the drilling cutting force is improved greatly, the drilling efficiency is improved, and the use requirement of a user is met.

The drill bit comprises the cutting part arranged on the drill handle and the tip part arranged on the cutting part, the cutting part and the tip part are integrally formed, the integrated arrangement is simple, the firmness and the stability are higher, and the service life is ensured.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure: 1, a drill shank; 2, a drill bit; 11, a handle body; 12, a driving section; 21, a cutting portion; 22, a tip portion; 211, a main body; 212, cutting edges; 213 junk slots; 121, first rib portions; 122, a second rib portion; 123, connection part.

Detailed Description

In the description of the present utility model, it should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of description and simplicity of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two original parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Embodiment one: referring to fig. 1 and 2, the three-edge woodworking drill for drilling comprises a drill handle 1 and a drill bit 2 arranged on the drill handle 1, wherein the drill bit 2 comprises a cutting part 21 arranged on the drill handle 1 and a tip part 22 arranged on the cutting part 21, the cutting part 21 and the tip part 22 are integrally formed, the tip part 22 is a triangular prism head, and the sharpness is greatly improved and the drilling is easier.

Embodiment two: the first embodiment can be described on the basis of the first embodiment, as shown in fig. 1 and 2, the edge length of the tip 22 of the triangular head is equal and the three-sided radian is the same, which is beneficial to reducing the resistance encountered in the cutting process, greatly improving the accuracy and achieving the maximum cutting. It is also intended that the lower portion of the tip portion 22 extends to the upper portion of the cutting portion 21, so that the firmness of the tip portion 22 can be greatly enhanced, and the service life can be improved.

Embodiment III: as can be explained on the basis of the first embodiment or the second embodiment, as shown in fig. 1 and 2, the cutting portion 21 includes a main body 211, cutting edges 212 and junk slots 213 are provided on the main body 211, the cutting edges 212 and the junk slots 213 are spaced apart, and the width of the junk slots 213 is consistent with the diameter of the drill shank 1. As shown in fig. 1, the chip grooves 213 and the cutting edges 212 are spiral, as shown in fig. 2, or the chip grooves 213 and the cutting edges 212 are straight, and the arrangement is various in type, and the choice of people is large. It is also contemplated that in order to enhance the cutting ability of the cutting edge 212, the cutting edge 212 is narrow at the upper portion and wide at the lower portion, which is more advantageous for cutting during reaming.

Embodiment four: it can be explained on the basis of the first embodiment, the second embodiment or the third embodiment, as shown in fig. 1 and 2, the drill shank 1 includes a shank 11 and a driving section 12 disposed at the tail of the shank 11, the driving section 12 includes a first prism portion 121 and a second prism portion 122, the first prism portion 121 and the second prism portion 122 are integrally connected through a connecting portion 123, and the connecting portion 123 is arc-shaped, and such arrangement is more beneficial to being mounted on an external electric wrench, thereby facilitating the mounting and securing the mounting.

As shown in fig. 1 and 2, when the woodworking drill drills holes, the tip end 22 is aligned with the reserved marking point, after the woodworking drill rotates, the tip end 22 drills into the wood board to perform positioning cutting, as the length of the edge of the tip end 22 of the edge head is equal and the radian of three sides is the same, the resistance encountered in the cutting process is reduced, the cutting efficiency is greatly improved, then the cutting part 21 starts reaming and cutting the wood board, the aperture is determined at the moment, the wood chip is continuously drilled downwards and is pushed outwards, and the chip removing grooves 213 in the cutting part 21 are convenient for discharging the wood chip, so that the drilling is smoother and the efficiency is higher.

Standard parts used in the present document can be purchased from the market, and the specific connection modes of the parts are conventional means such as mature bolts and rivets in the prior art, and will not be described in detail herein.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims (7)

1. The utility model provides a three sword carpenter's of drilling bores, includes drill shank (1) and sets up drill bit (2) on drill shank (1), its characterized in that: the drill bit (2) comprises a cutting part (21) arranged on the drill shank (1) and a tip part (22) arranged on the cutting part (21), wherein the cutting part (21) and the tip part (22) are integrally formed, and the tip part (22) is a triangular prism head.

2. A three-bladed woodworking drill for drilling holes according to claim 1, wherein: the length of the tip end (22) of the triangular head is equal and the radian of three surfaces is the same.

3. A three-edged woodworking drill for drilling holes according to claim 1 or 2, wherein: the tip portion (22) extends from a lower portion to an upper portion of the cutting portion (21).

4. A three-edged woodworking drill for drilling holes according to claim 1 or 2, wherein: the cutting part (21) comprises a main body (211), cutting edges (212) and chip removal grooves (213) are arranged on the main body (211), the cutting edges (212) and the chip removal grooves (213) are distributed at intervals, and the width of the chip removal grooves (213) is consistent with the diameter of the drill shank (1).

5. The three-bladed woodworking drill for drilling holes of claim 4, wherein: the chip groove (213) and the cutting edge (212) are spiral, or the chip groove (213) and the cutting edge (212) are straight.

6. The three-bladed woodworking drill for drilling holes of claim 4, wherein: the cutting edge (212) has a narrow upper portion and a wide lower portion.

7. A three-edged woodworking drill for drilling holes according to claim 1 or 2 or 5 or 6, wherein: the drill shank (1) comprises a shank body (11) and a driving section (12) arranged at the tail part of the shank body (11), the driving section (12) comprises a first prism part (121) and a second prism part (122), the first prism part (121) and the second prism part (122) are connected into a whole through a connecting part (123), and the connecting part (123) is arc-shaped.