A tool holder includes a body, a base and a sprayer. The body includes an outlet portion and an end portion for mounting of a lathe tool. A first water channel hole and two diverted water channels are formed in the body, each diverted water channel has a first end connected to the first water channel hole, and the body has a second water channel hole with one end located on the end portion. The base has a connecting surface in contact with the bottom surface, and a water inlet connected to the first water channel hole, the connecting surface is provided with a groove connected to the water inlet and the second water channel hole. The sprayer includes two water spraying passages with one end located at the first end surface and connected to the diverted water channels, and another end located corresponding to the lathe tool.
1. A tool holder, comprising:
a body including a top surface and a bottom surface opposite to the top surface, the top surface including an end portion and an outlet portion, wherein the end portion is provided for mounting of a lathe tool, a first water channel hole is formed in the bottom surface of the body, two diverted water channels are in communication with the first water channel hole, each of the diverted water channels has a first end connected to the first water channel hole and a second end located on the top surface, the body is further provided with a second water channel hole which has two ends located on the bottom surface and the end portion, respectively;
a base including a connecting surface in contact with the bottom surface, and being provided with a water inlet which has one end located at the connecting surface, when the connecting surface comes into contact with the bottom surface, the water inlet is in communication with the first water channel hole, the connecting surface is provided with a groove which is in communication with the water inlet and the second water channel hole; and
a sprayer including a first end surface attached to the outlet portion and a second end surface extending to the end portion, the sprayer further including two water spraying passages, wherein each of the water spraying passages has one end located at the first end surface and connected to the two diverted water channels, and another end located at the second end surface.
2. The tool holder as claimed in claim 1 , wherein the body has three lateral surfaces, one of the lateral surfaces is connected to a handle, another two of the lateral surfaces intersect at an intersection point, the end portion of the body is located at the intersection point, the outlet portion is located on the lateral surface connected to the handle, the end portion includes a lathe-tool recess recessed from the top surface, the lathe-tool recess has a lathe-tool-recess bottom surface, the lathe-tool-recess bottom surface and the top surface of the body form a stepped structure, an outlet is defined in the end portion, recessed from the lathe-tool-recess bottom surface towards the bottom surface, and includes a step surface, and the second water channel hole has one end located at the step surface and runs through the bottom surface.
3. The tool holder as claimed in claim 1 , wherein the base further includes an opposite surface opposite to the connecting surface, and is provided with two first fixing bolts which penetrate the base from the opposite surface to fix the base to the body.
4. The tool holder as claimed in claim 1 , wherein the sprayer further includes a fixing bolt and a fixing hole which runs through the sprayer, and the fixing bolt is inserted in the fixing hole to fix the sprayer to the outlet portion of the body.