TWI510335B - Water Feeding Connecter for Drill - Google Patents

Description

Water supply connector for drilling machine

The present invention relates to a connector, and more particularly to a water supply connector for a drilling machine.

Regarding the drilling machine, whether the pneumatic or electric type can rotate the drill bit through the rotating shaft, one end of the rotating shaft is driven by the driving device inside the drilling machine, and the drill bit is detachably connected to the other end of the rotating shaft.

The drill bit is provided with a through hole and a through hole which is axially penetrated, and the notch is connected to the through hole, and the outer periphery of the head of the drill is provided with diamond particles to facilitate drilling.

However, the dust generated during drilling will adhere to the gap between the diamond particles and the particles of the drill bit. Even if the water is washed after the drilling work is completed, there will be more or less partial residue. It is increasingly difficult to wash away with water. Over time, the gap between the diamond particles and the particles will be filled with dust, making it difficult for the drill head with diamond particles to function, and it is difficult to continue drilling.

In addition, when the metal drill bit is drilled, it will inevitably generate heat due to friction. In order to prevent the drill bit from being damaged or burned by the overheating, the drilling can only be temporarily stopped, waiting for the temperature of the drill bit to drop, which is obviously troublesome. Stretching construction time, early for people It has been a long time.

It is an object of the present invention to provide a water supply connector for a drilling machine to flush the inside and the outside of the drill bit with water at any time and at the same time as drilling, in addition to ensuring that dust does not adhere to the drill bit, and is more capable of The dual function of cooling the drill bit.

In order to achieve the above object, the present invention provides a water supply connector for a drilling machine, wherein the drilling machine drives a drill bit having a through-shaft hole through a rotating shaft, the water supply connector comprising: a cylinder body Hollow and both ends are provided with a sealing structure, the cylinder body further has a water delivery through hole; and a central shaft inserted axially into the cylinder body and rotatably inserted between the two sealing structures, the center The shaft is provided with a first flow passage and a second flow passage which are in communication with each other. The first flow passage forms a water outlet hole in the central shaft, and the second flow passage is formed on the central shaft to form a water passage. The at least one water inlet hole is connected to the hole; wherein the two ends of the central shaft are respectively connected between the drill bit and the rotating shaft, and the water liquid is injected into the water through the water passing through hole and the at least one water inlet hole In the first flow passage and the second flow passage, the water in the first flow passage flushes the inside of the through-shaft hole and the outside of the drill bit through the water outlet hole.

Compared with the prior art, the present invention has the effect of flushing the inside and the outside of the drill bit with water at any time and at the same time as drilling, to ensure that dust does not adhere to the drill bit, and at the same time, the drill bit is cooled.

100‧‧‧Drilling machine

1‧‧‧ shaft

11‧‧‧First corresponding shaft joint

2‧‧‧Drill

21‧‧‧ head

22‧‧‧Second corresponding shaft joint

23‧‧‧through shaft hole

24‧‧ ‧ gap

400‧‧‧Water supply connector

4‧‧‧Cylinder

41‧‧‧Depression

42‧‧‧Interval space

43‧‧‧Water delivery through hole

45‧‧‧Waterproof gasket

46‧‧‧Metal washers

47‧‧‧ Sealing structure

5‧‧‧ center shaft

51‧‧‧First shaft joint

52‧‧‧Second shaft joint

53‧‧‧First runner

531‧‧‧Water outlet

54‧‧‧Second runner

541‧‧‧Water inlet

6‧‧‧Connector

61‧‧‧ switch

7‧‧‧Water pipes

The first figure is a three-dimensional connection between the drill bit and the rotating shaft of the water supply connector of the present invention. Figure.

The second figure is an exploded perspective view of the water supply connector of the present invention connected between the drill bit and the rotating shaft.

Figure 3 is a perspective view of the present invention connected to a drill machine in accordance with the first figure.

Figure 4 is a cross-sectional view of the present invention in accordance with a third diagram.

Figure 5 is a schematic view of the drilling and water supply according to the fourth figure of the present invention.

For a fuller understanding of the features, features and aspects of the present invention, reference should be made to the accompanying drawings.

The present invention provides a water supply connector for a drilling machine. As shown in the first figure, the drilling machine (100, see FIG. 3) drives a rotating shaft 1 with its internal driving device (not shown). Rotating, the rotating shaft 1 indirectly drives a drill 2 to rotate. The drill 2 is provided with a notch 24 and a through-shaft hole 23 extending through the axial direction. The notch 24 and the through-shaft hole 23 communicate with each other, and the outer periphery of the head 21 of the drill 2 is disposed. Diamond particles.

As shown in the first to fourth figures, the water supply connector 400 of the present invention comprises: a cylinder 4 and a central shaft 5, preferably further comprising a joint 6 and a water conduit 7. The water supply connector 400 of the present invention is connected between the rotating shaft 1 and the drill bit 2 to provide water to the drill bit 2 at any time, as described in detail below.

The inside of the cylinder 4 is hollow and has a water delivery through hole 43, and a sealing structure 47 is further disposed at both ends thereof to seal the cylinder 4 without leaking water. In this embodiment, the two ends of the cylinder 4 are each formed with a recessed portion 41 by an annular recess, and each sealing structure 47 Then, the sealing structure 47 includes a waterproof gasket 45 disposed inside the recess portion 41 and a metal gasket 46 disposed on the outer side of the recess portion 41.

The two ends of the central shaft 5 have a first shaft portion 51 and a second shaft portion 52. The first shaft portion 51 and the second shaft portion 52 are both axially screwed. As shown, the first shaft portion 51 is an internal thread structure, and the second shaft portion 52 is an external thread structure, enabling the first corresponding shaft portion 11 and the drill bit 2 to be axially screwed to the shaft 1 respectively. The second corresponding shaft portion 22 is configured to enable the rotating shaft 1 to rotate the drill 2 via the center shaft 5.

The central shaft 5 is provided with a first flow passage 53 and a second flow passage 54 (see FIG. 4) which are in cross-connection with each other. The first flow passage 53 can be axially opened to form a water outlet at one end of the central shaft 5. 531 (see the second figure), the second flow path 54 may be radially opened to form at least one water inlet hole 541 in the shaft of the central shaft 5 (see the second figure), which in the embodiment is connected to each other. The two water inlet holes 541 can of course be formed in a Y shape to form three water inlet holes 541 (not shown), which is not limited by the present invention.

The central shaft 5 is axially inserted into the cylinder 4 and rotatably inserted between the two sealing structures 47. In detail, the central shaft 5 is rotatably inserted into one of the sealing structures 47 (ie: One of the waterproof gaskets 45 and one of the metal gaskets 46) and the other of the sealing structures 47 (ie, the other waterproof gasket 45 and the other metal gasket 46 therein) are kept sealed by the waterproof gasket 45, the metal The gasket 46 is used to firmly fix the waterproof gasket 45 to the recessed portion 41 of the cylinder 4; further, the two ends of the central shaft 5 are respectively exposed from the two sealing structures 47 (even as shown) In addition to the benefit of the snail The shaft 1 and the drill 2 are connected, and the central shaft 5 can be formed to be bridged between the two sealing structures 47. In other words, the central shaft 5 is pivotally connected between the two sealing structures 47 in the cylinder 4. Free to rotate. Further, the inner wall of the cylinder 4 and the central shaft 5 are spaced apart from each other to form a space 42 (see FIG. 4), and the water delivery through hole 43 communicates with the second flow path 54 via the space 42. .

The joint 6 has two ends communicating with each other, one end of which is connected to the water transfer through hole 43, and the other end is connected to a water pipe 7; the joint 6 is provided with a switch 61 to control one end of the joint 6 and the other end thereof Whether it is connected.

As shown in the fourth figure, the water supply connector 400 of the present invention is connected between the rotating shaft 1 and the drill bit 2, and the other end of the rotating shaft 1 is driven by the drilling machine 100, so that the drilling machine 100 drives the rotating shaft 1 to rotate, and the rotating shaft 1 , the drill 2 is rotated by the central shaft 5 , and the water supply connector 400 of the present invention only rotates the central shaft 5 , and the cylinder 4 does not rotate, so that the water can be input into the cylinder via the water pipe 7 and the joint 6 . Within body 4.

As shown in the fifth figure, when the drilling operation is to be performed, flushing (starting flushing) can be started by opening the switch 61 while the drilling machine 100 is being started, and of course, the switch 61 can be opened at the appropriate time during the drilling. And flushing (timely flushing). The water liquid is filled into the space 42 through the water pipe 7 and the water delivery through hole 43; after the space 42 is filled and compressed, the water in the space 42 will pass through the water inlet hole 541 (see the second figure). The second flow path 54 is injected, and then injected into the first flow path 53; the water liquid is ejected through the water outlet hole 531 (see FIG. 2) of the first flow path 53, and the water liquid discharged is in addition to the through hole hole from the inner pair of the drill bit 2. 23 flushing, further flushing the outside of the drill bit 2, so that the water can be ejected from the notch 24 to flush the diamond particles of the head 21 of the drill bit 2, so that the dust does not stick to the drill bit 2 nor does it stick. It is attached to the head 21 of the drill 2, and the water liquid can also be ejected from the through-shaft hole 23 to flush out the dust in the drilled hole, facilitating the smooth progress of the drilling operation.

In summary, the present invention has the following effects as compared with the prior art: it can flush the inside and the outside of the drill bit 2 (for example, the head 21 provided with diamond particles) at any time or at the same time as drilling while drilling, thereby It is ensured that the dust does not adhere to the head 21 of the drill bit 2, and the double effect of lowering the drill bit 2 can be achieved. Further, since the water liquid flushes the inside and the outside of the drill 2 at the same time, in terms of the temperature drop of the drill 2, the temperature drop efficiency is achieved by simultaneously lowering the temperature inside and outside.

In addition, the present invention has other effects: it can be ejected from the through-shaft hole 23 of the drill bit 2 by water, so that the dust in the drilled hole can be punched out, thereby facilitating the smooth progress of the drilling operation.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural changes of the present invention and the contents of the drawings are all included in the present invention. Within the scope of the rights, it is given to Chen Ming.

100‧‧‧Drilling machine

1‧‧‧ shaft

11‧‧‧First corresponding shaft joint

2‧‧‧Drill

21‧‧‧ head

22‧‧‧Second corresponding shaft joint

23‧‧‧through shaft hole

24‧‧ ‧ gap

400‧‧‧Water supply connector

4‧‧‧Cylinder

41‧‧‧Depression

42‧‧‧Interval space

43‧‧‧Water delivery through hole

45‧‧‧Waterproof gasket

46‧‧‧Metal washers

47‧‧‧ Sealing structure

5‧‧‧ center shaft

51‧‧‧First shaft joint

52‧‧‧Second shaft joint

53‧‧‧First runner

54‧‧‧Second runner

6‧‧‧Connector

7‧‧‧Water pipes

Claims (7)

A water supply connector for a drilling machine, the drilling machine driving a drill bit having a through-shaft hole through a rotating shaft, the water supply connector comprising: a cylinder body having a hollow interior and a sealing structure at each end The cylinder body further defines a water delivery through hole, and each of the two ends of the cylinder body has a recessed portion, and each of the sealing structures includes a waterproof gasket and a metal washer disposed in each of the recessed portions, and each of the metal washers is disposed And a central shaft inserted axially into the cylinder and rotatably inserted between the two waterproof gaskets and the two metal washers, the two ends of the central shaft and respectively Exposed from the two metal gaskets, the central shaft is provided with a first flow passage and a second flow passage which are in communication with each other, and the first flow passage forms a water outlet hole in the central shaft, and the second flow passage is at the center The shaft further forms at least one water inlet hole spaced apart from the water delivery through hole; wherein the two ends of the central shaft are respectively connected between the drill bit and the rotating shaft, and the water liquid passes through the water delivery a hole and the at least one water inlet hole Into the first flow passage and in the second flow path, liquid water within the first flow passage and the nozzle holes through the interior of the through hole and the drill bit shaft external flushing. A water supply connector for a drilling machine according to claim 1, wherein the water inlet holes are provided in two or more. The water supply connector for a drilling machine according to claim 1, wherein a space is formed between the inside of the cylinder and the central shaft, and water is filled into the space through the water-passing through hole. The water in the space is injected into the first flow channel and the second flow path through the at least one water inlet hole. The water supply connector for a drilling machine according to claim 1, wherein the two ends of the central shaft respectively have a first shaft portion and a second shaft portion, the central shaft of the shaft The first shaft joint is axially connected to one end of the rotating shaft, and the second shaft joint of the central shaft is axially connected to one end of the drill bit. The water supply connector for a drilling machine according to claim 4, wherein the first shaft portion and the second shaft portion are both axially screwed. The water supply connector for a drilling machine according to claim 1, further comprising a joint, one end of the joint being connected to the water transfer through hole of the cylinder, and the other end of the joint is connected with a water pipe from The water liquid in the water pipe is input to the cylinder through the joint. A water supply connector for a drilling machine according to claim 6, wherein the joint is provided with a switch for controlling whether or not the one end of the joint is in communication with the other end.