Tool handle

Abstract

This invention relates to a tool handle, comprising: a grip portion; a connecting rod extending along an axial direction and defining a circumferential direction, coupled to the grip portion and rotatably connected, including a connecting portion forming a slot for inserting a tool head, the connecting portion having a guide groove extending along the circumferential direction on its outer side, the connecting rod having a locking portion on one extension path of the guide groove, one connecting end of the locking portion being integrally connected to the connecting portion, and one locking portion having a locking abutting portion extending axially away from the connecting end, the locking portion being radially oscillating relative to the slot; a positioning ring fitted onto the connecting portion and radially elastically deformable, having a protrusion slidably disposed within the guide groove; and a control member fitted onto the positioning ring and rotatably connected, capable of driving the positioning ring.

Claims

1. A tool handle, comprising: One hand; A connecting rod, extending along an axial direction and defining a circumferential direction around that axial direction, is engaged with the grip and is in a rotational relationship. It includes a connecting portion forming a slot for inserting a tool head. A guide groove extending along the circumferential direction is provided on the outer side of the connecting portion. A locking portion is provided on one extension path of the guide groove. One connecting end of the locking portion is integrally connected to the connecting portion. A locking abutment extends axially away from the connecting end and is radially swayable relative to the slot. A positioning ring, fitted onto the connecting portion and radially elastically deformable, has a protrusion that is slidably disposed within the guide groove. A control element, fitted onto the positioning ring and in a rotational relationship, can drive the positioning ring to rotate between a first position and a second position. When the positioning ring is in the first position, the protrusion is radially pressed against the retaining part, and the retaining part is engaged in one of the slots of the tool head and does not swing relative to the tool head; when the positioning ring is in the second position, the protrusion is moved away from the retaining part, so that the retaining part can swing relative to the tool head.

2. The tool handle as claimed in claim 1, wherein the hardness of one of the connecting rods is greater than the hardness of one of the positioning rings.

3. The tool handle as claimed in claim 2, wherein the connecting rod is made of nylon fiber reinforced material and the positioning ring is made of plastic steel material.

4. The tool handle as claimed in claim 1, wherein the hardness of one of the control elements is greater than the hardness of one of the positioning rings.

5. The tool handle as claimed in claim 1, wherein the positioning ring has a first positioning portion, the engaging portion has a plurality of circumferentially spaced second positioning portions, wherein one of the first positioning portion and each of the second positioning portions is a recess and the other is a latching protrusion detachably engaged in the recess; wherein, When the positioning ring is in the first position, the first positioning part is engaged with one of the second positioning parts.

6. The tool handle as claimed in claim 4, wherein a plurality of limiting protrusions are radially protruding from the outer periphery of the joint, the plurality of limiting protrusions being spaced apart in the circumferential direction, a plurality of limiting grooves are provided on the inner side of the control member, the plurality of limiting grooves being spaced apart in the circumferential direction, one of the limiting grooves extending in the circumferential direction is greater than the extension dimension of each limiting protrusion in the circumferential direction, and each limiting protrusion is relatively movable and engages with one of the limiting grooves.

7. The tool handle as claimed in claim 1, wherein the locking portion protrudes radially into the guide groove.

8. The tool handle as claimed in claim 7, wherein the protrusion has a beveled guide surface on the side of the circumferentially upward facing the locking part, the beveled guide surface being able to press against the locking part in the circumferentially upward.

9. The tool handle as claimed in claim 1, wherein an annular flange is radially protruding from the outer periphery of the joint, the handle is provided with a through hole including a large diameter hole, a small diameter hole and a shoulder located between the large diameter hole and the small diameter hole, the joint passes through the through hole, the annular flange is located in the large diameter hole and abuts against the shoulder in the axial direction, and a top portion of one of the joints passes through the small diameter hole.

10. The tool handle as claimed in claim 5, wherein the positioning ring is a C-shaped ring with a radially notched notch; one engaging end of the tool head is inserted into the slot, the engaging end and the slot being polygonal in shape for mutual engagement; one engaging portion has a hardness greater than one positioning ring; the first positioning portion is disposed adjacent to the notch; the locking protrusion is an arcuate protrusion, and the recess is an arcuate groove; the locking abutment protrudes radially into the guide groove; the locking abutment has an arcuate convex surface on one side facing the positioning ring, the protrusion being radially abutting against the arcuate convex surface; the protrusion has a sloping guide surface on the side facing the locking portion in the circumferential direction, the sloping guide surface being circumferentially abutting against the locking portion; a ring flange protrudes radially from the outer periphery of the engaging portion; the handle has a through hole, the through hole including a large-diameter hole, a small-diameter hole and a [missing information - likely a notch or groove] located in the [missing information - likely a notch or groove]... The shoulder between the large-diameter hole and the small-diameter hole has a through hole through which the joint is located. The annular flange is located inside the large-diameter hole and abuts against the shoulder in the axial direction. The top end of one of the joints passes through the small-diameter hole. The grip has an operating part and a plurality of latching parts. The operating part is located radially outside the plurality of latching parts and covers the plurality of latching parts. The plurality of latching parts are detachably latched onto the connecting rod. One of the control components has a hardness greater than that of the positioning ring. The outer periphery of the positioning ring has a plurality of radially protruding limiting ribs. The inner side of the control component has a plurality of positioning grooves. The plurality of limiting ribs are latched into the plurality of positioning grooves. The latching part has a latching protrusion protruding towards the tool head. The latching protrusion can be selectively latched into the latching groove. The connecting rod and the control component are made of nylon fiber reinforced material, and the positioning ring is made of plastic steel material.

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