A water grinder including: a housing in which a rotary shaft is drivably disposed, the rotary shaft being formed with an axial passage; a water incoming flow way formed in the housing; a valve disposed in the housing and controllable by a selection switch; an external water discharging assembly disp
A water grinder including: a housing in which a rotary shaft is drivably disposed, the rotary shaft being formed with an axial passage; a water incoming flow way formed in the housing; a valve disposed in the housing and controllable by a selection switch; an external water discharging assembly disposed at a front end of the housing and having at least one water outlet; and a water flow bypass communicating with the external water discharging assembly and the valve. By means of turning the selection switch, the valve can be turned to a position to conduct the water from the flow way into the passage of the rotary shaft to discharge therefrom. Alternatively, the valve can be turned to another position to conduct the water to flow into the external water discharging assembly to discharge from the water outlet. Accordingly, the water discharging position is controllable to achieve best wetting effect for the powder dust produced in grinding operation.
대표청구항▼
What is claimed is: 1. A water grinder comprising: a housing in which a rotary shaft is drivably disposed, an outer end of the rotary shaft protruding out from the housing for mounting a grinding tool at the outer end, the rotary shaft being formed with an internal axial passage; a water incoming f
What is claimed is: 1. A water grinder comprising: a housing in which a rotary shaft is drivably disposed, an outer end of the rotary shaft protruding out from the housing for mounting a grinding tool at the outer end, the rotary shaft being formed with an internal axial passage; a water incoming flow way formed in the housing for the water to flow in, a chamber being formed in the housing and connected with a front end of the flow way, the chamber communicating with the passage of the rotary shaft; a valve rotatably disposed in the chamber corresponding to an inner end of the rotary shaft, a cavity being formed at a rear end of the valve, the cavity communicating with the front end of the water incoming flow way, at least one conducting hole being formed on a circumference of the valve to communicate with the cavity; a selection switch arranged on the circumference of the housing for a user to shift, the valve being connected with the selection switch, whereby when shifting the selection switch, the valve is driven and displaced; an external water discharging assembly disposed at a front end of the housing, the external water discharging assembly having at least one water outlet; and a water flow bypass, one end of the water flow bypass communicating with the external water discharging assembly, while the other end of the water flow bypass communicating with the chamber; whereby, by means of rotating the selection switch, the conducting hole of the valve being aligned with the passage of the rotary shaft or the water flow bypass, the water is discharged from the outer end of the rotary shaft or from the water outlet of the external water discharging assembly. 2. The water grinder as claimed in claim 1, wherein the external water discharging assembly is adjustably connected with the front end of the housing, whereby the distance between the water outlet and the housing is changeable, the water flow bypass being a flexible conduit, one end of the conduit being connected to the external water discharging assembly, while the other end of the conduit being connected with the housing. 3. The water grinder as claimed in claim 1, wherein the external water discharging assembly includes a seat body connected with the front end of the housing, a water inlet being formed on a top face of the seat body, the water outlet being arranged on the bottom face of the seat body, one end of the water flow bypass being connected to the water inlet. 4. The water grinder as claimed in claim 1, wherein the external water discharging assembly includes a seat body and a flow guide member, the seat body being formed with an internal space, an opening being formed on a bottom face of the seat body to communicate with the space, the seat body being connected with the front end of the housing, the flow guide member being a hollow member, a water inlet being formed on a top face of the flow guide member, the water outlet being arranged on the bottom face of the flow guide member to communicate with the water inlet, the flow guide member being mounted in the space of the seat body with the water outlet aligned with the opening, one end of the water flow bypass being connected to the water inlet. 5. The water grinder as claimed in claim 3, wherein the seat body is adjustably connected with the housing and the water flow bypass is a flexible conduit. 6. The water grinder as claimed in claim 4, wherein the seat body is adjustably connected with the housing and the water flow bypass is a flexible conduit. 7. The water grinder as claimed in claim 4, wherein the space of the seat body is a transverse hole and the flow guide member is a circular bar angularly displaceable within the space, the water flow bypass being a flexible conduit. 8. The water grinder as claimed in claim 7, further comprising a bracket, a rear end of the bracket being connected with the front end of the housing, the seat body being connected with a front end of the bracket. 9. The water grinder as claimed in claim 8, wherein the front end of bracket is formed with multiple mounting holes arranged from a front side to a rear side, the seat body being connected with the bracket at the mounting holes, whereby the seat body can be mounted at different mounting holes to change the distance between the seat body and the housing. 10. The water grinder as claimed in claim 9, wherein the bracket has two spaced arms, rear ends of the arms being connected with the housing, the mounting holes being respectively formed on front ends of the arms. 11. The water grinder as claimed in claim 1, further comprising a water incoming ball valve disposed in the chamber between the water incoming flow way and the rear end of the valve, a water discharging switch being arranged on a circumference of the housing for a user to shift, the water incoming ball valve being connected with the water discharging switch, whereby by means of shifting the water discharging switch, the ball valve is driven and rotated to block or unblock the flow way. 12. The water grinder as claimed in claim 1, wherein the valve is formed with at least two conducting holes, whereby when the valve is turned to different angular positions, the conducting holes respectively communicate with the passage of the rotary shaft or the water flow bypass. 13. The water grinder as claimed in claim 1, wherein a water discharging head is mounted at the outer end of the rotary shaft, an outer end of the water discharging head being formed with several sprinkling holes communicating with the passage of the rotary shaft. 14. A water grinder comprising: a housing in which a rotary shaft is drivably disposed, an outer end of the rotary shaft protruding out from the housing for mounting a grinding tool at the outer end, the rotary shaft being formed with an internal axial passage; a water incoming flow way formed in the housing for the water to flow in, a chamber being formed in the housing and connected with a front end of the flow way; a water incoming ball valve disposed in the housing between the chamber and the water incoming flow way, the ball valve having a through hole; a water discharging switch arranged on a circumference of the housing and connected with the water incoming ball valve, whereby by means of shifting the water discharging switch, the ball valve is driven and rotated to make the through hole of the ball valve communicate with the flow way or not communicate with the flow way so as to block or unblock the flow way; and at least one water outlet formed at the front end of the water grinder and communicating with the chamber, whereby after the water flows into the water incoming flow way, the water flows through the ball valve to discharge from the water outlet. 15. The water grinder as claimed in claim 14, wherein the rotary shaft is formed with an internal axial passage, a communicating hole being formed in the housing to communicate the chamber with an inner end of the passage of the rotary shaft, an outer end of the passage serving as the water outlet. 16. The water grinder as claimed in claim 14, wherein the water outlet is disposed at the front end of the housing. 17. The water grinder as claimed in claim 14, wherein an external water discharging assembly is disposed at a front end of the housing, the water outlet is disposed at the external water discharging assembly.
Smart ; William L. ; Hoenig ; Stuart A. ; Savitz ; Christian W. ; Darli ngton ; Douglas K., Grinder apparatus with pollution control fluid dispensing means.
Smart William L. (Indianapolis IN) Hoenig Stuart A. (Tucson AZ) Savitz Christian W. (Tucson AZ) Darlington Douglas K. (Tucson AZ), Grinder apparatus with pollution control fluid dispensing means.
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