TWM444262U - Improved structure of hole making device - Google Patents

Description

Improved structure of the hole opener

This creation is an improved structure of a hole opener, especially a hole opener used for high hardness materials such as marble, ceramic tile, or glass, but which is easy to break, and aims to provide a smooth opening in such products. And can effectively avoid the damage of the product.

For items with high hardness such as marble, ceramic tile, or glass, but which are easily broken, special care must be taken when opening holes in it to smoothly open the required holes on them. As shown in FIG. 1 , the conventional hole opener mainly comprises a hollow cylindrical cutter (5) fixedly coupled to a central shaft (51) and centered on the sharp end (52) of the lower end of the central shaft (51). And a rotating mechanism is coupled to the upper end of the central shaft (51) to rotate the cutter (5), and the workpiece is opened by the cutting edge (53) of the lower edge of the cutter (5). Although this method can achieve the function of opening holes in such products, because of the extremely high temperature during the opening process, the operator must simultaneously inject water from the outside to reduce the temperature and avoid damage to the tool or product. However, this method is quite inconvenient, and the effect of reducing the internal temperature of the tool is limited, and the damage of the tool or the product often occurs, so it needs to be improved.

The present invention relates to an improved structure of a hole opener comprising a hollow cylindrical cutter combined with a replaceable shaft, and a soft water absorbing body inside the cylindrical cutter, which can be provided in marble, ceramic tile, or Glass and other materials On the article, the purpose of opening the hole, and the important feature of this creation is that the water absorption body installed in the cutter can effectively reduce the temperature when opening the hole, thereby reducing the probability of damage to the tool and the work object. Practical and progressive.

Referring to Figures 2 to 4, the improved structure of the present invention includes a hollow cylindrical cutter (1) having a coupling seat (11) on the upper portion and a side of the coupling seat (11). a screw hole (12), which can be coupled with a shaft core (2), and combined with a tightening bolt (21) to the screw hole (12) to complete the locking shaft (2) to the cylindrical cutter (1) The purpose of this creation is that a soft water absorbing body (3) is provided inside the cylindrical cutter (1). When in use, the water absorbing body (3) can be first filled with water. When the hole is opened, it is positioned on the workpiece with the tip end portion (22) below the axis (2), and the tool is used (1) When the blade portion (13) rotates at a high speed, the cutting hole is cut. At this time, since the water absorbing body (3) has a large amount of water, the cooling effect on the tool (1) can be enhanced, and the opening operation is performed. At the same time, as the cutter (1) is downward, as shown in Fig. 5, the water absorbing body (3) is pressed, and a part of the original water is also squeezed out to the surface of the workpiece (4). The moisture can provide the cooling effect of taking away the heat, so that the tool and the work can obtain sufficient temperature reduction purpose, thereby achieving the expected effect of avoiding damage.

In summary, this creation should have met the requirements of the new patent, and apply in accordance with the law, and please give it as soon as possible. However, it is only the preferred embodiment of the present invention that all modifications or alterations made in the spirit of the present invention are still covered by this patent.

(1)‧‧‧Cylinder knives

(11) ‧ ‧ ‧ joints

(12)‧‧‧Spiral holes

(13) ‧‧‧blade

(2) ‧‧‧Axis

(21) ‧‧‧tightening bolts

(22) ‧ ‧ tip

(3)‧‧‧Soft water absorbing body

(4) ‧ ‧ ‧ work

(5) ‧‧‧Knowledge cutters

(51)‧‧‧Center axis

(52) ‧‧‧ sharp end

(53)‧‧‧ Blades

Figure 1 is a perspective view of a conventional hole opener

Figure 2 is a three-dimensional combination of the created hole opener

Figure 3 is an exploded view of the created hole opener

Figure 4 is a combination of the face of the creative hole opener

Figure 5 is a reference diagram of an embodiment of the creative hole opener

(1)‧‧‧Cylinder knives

(11) ‧ ‧ ‧ joints

(12)‧‧‧Spiral holes

(13) ‧‧‧blade

(2) ‧‧‧Axis

(21) ‧‧‧tightening bolts

(22) ‧ ‧ tip

(3)‧‧‧Soft water absorbing body

Claims (3)

An improved structure of a hole opener mainly comprises a hollow cylindrical cutter combined with an axial center, and a soft water absorbing body is arranged inside the cylindrical cutter. The improved structure of the hole opener according to claim 1, wherein the upper portion of the hollow cylindrical cutter is provided with a coupling seat, and one side of the coupling seat is provided with a screwing hole for coupling the axial center, and The tightening bolt is combined with the screwing hole to complete the locking of the shaft on the cylindrical cutter so that the shaft center is formed into a replaceable state. The improved structure of the hole opener according to claim 1, wherein the water absorbing body absorbs water, and when pressed, a part of water is discharged from the work object.