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EP-4737061-A1 - TOOL CLAMPING ASSEMBLY AND SHARPENER

EP4737061A1EP 4737061 A1EP4737061 A1EP 4737061A1EP-4737061-A1

Abstract

The embodiment of the present application provides a tool clamping assembly and a sharpener, belonging to the technical field of kitchen utensils. The tool clamping assembly includes an arm body, its first end is connected with a sharpening frame, the arm body is provided with a top pin and a driving member, the driving member is used to drive the top pin to move along an axial direction of the arm body; a clamping arm component, which includes a first clamping arm and a second clamping arm, the two clamping arms are mirror symmetric and are connected by a rotation axis. The rotation axis is connected to a second end of the arm body, and a torque member is provided on the rotation axis. The torque member is used to apply torque to the two clamping arms to jointly clamp the top pin at first ends of the two clamping arms; when the top pin is moved, the two clamping arms can be rotated synchronously, so that second ends of the two clamping arms are closed to each other so as to clamp the tool or separate from each other to release the tool. Compared to traditional clamping components, this tool clamping assembly eliminates a need for frequent use of a hexagonal wrench and shortens the clamping and disassembly time of the tool.

Inventors

  • Xie, Tirui

Assignees

  • Xie, Tirui

Dates

Publication Date
20260506
Application Date
20250313

Claims (10)

  1. A tool clamping assembly used for a sharpener, wherein the sharpener is provided with a sharpening frame, and the tool clamping assembly comprises: an arm body, a first end of the arm body is connected with the sharpening frame, and the arm body is provided with a top pin and a driving member, the driving member is configured to drive the top pin to move along an axial direction of the arm body; a clamping arm component, comprising a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are mirror symmetric and are connected by a rotation axis, the rotation axis is connected to a second end of the arm body, the rotation axis is provided with a torque member configured to apply torque to the two clamping arms to jointly clamp the top pin at a first end of the first clamping arm and a first end of the second clamping arm; when the top pin is moved, the first clamping arm and the second clamping arm are rotated synchronously, so that a second end of the first clamping arm and a second end of the second clamping arm are closed to each other to clamp the tool or separate from each other to release the tool.
  2. The tool clamping assembly according to claim 1, wherein a shape of the top pin is a trapezoidal block, and a first side wall surface and a second side wall surface of the top pin are mirror symmetric about a symmetry plane between the first clamping arm and the second clamping arm; the first side wall surface of the top pin abuts against the first end of the first clamping arm, and the second side wall surface of the top pin abuts against the first end of the second clamping arm.
  3. The tool clamping assembly according to claim 2, wherein the driving member is a driving nut, which is located on one side of the top pin away from the rotation axis and abuts against the top pin; the driving nut is threaded with the arm body, and the driving nut is capable of being rotated relative to the arm body to drive the top pin to be close to the rotation axis.
  4. The tool clamping assembly according to claim 1, wherein the arm body comprises a first arm body, a second arm body, and a rotating sleeve; the first end of the first arm body is connected with the sharpening frame, the first end of the second arm body is connected to the top pin, and the rotating sleeve is fixedly connected to the second end of one of the two arm bodies and threaded to the second end of the other arm body; the top pin and the driving member are respectively located on the second arm body.
  5. The tool clamping assembly according to claim 4, further comprising a rotating joint, wherein the rotating joint is connected to the first end of the arm body and the sharpening frame, and the rotating joint causes the arm body to swing relative to the sharpening frame.
  6. A sharpener, comprising: a sharpening stand, configured to fix a sharpening stone; a sharpening frame, provided on the sharpening stand, wherein the sharpening frame is capable of moving relative to the sharpening stand; and the tool clamping assembly according to any one of claims 1-5, which is connected to the sharpening frame and capable of moving with the sharpening frame to grind a tool through the sharpening stone.
  7. The sharpener according to claim 6, wherein a first guide member is provided on one side of the sharpening stand facing away from the sharpening stone; the sharpener further comprises a sliding seat, wherein a second guide member is provided on the sliding seat, and the first guide member and the second guide member can cooperate with each other to enable the sliding seat to slide relative to the sharpening stand; the sharpening frame is connected to the sliding seat and is capable of being slid with the sliding seat.
  8. The sharpener according to claim 7, wherein the sharpener frame comprises a first side bracket and a second side bracket that are spaced apart, and a crossbar connecting the first side bracket and the second side bracket; the crossbar is located above the sharpening stand, and the first end of the arm body is connected to the crossbar; the first side bracket is located on a first side of the sharpening stand, and the second side bracket is located on a second side of the sharpening stand; the first side bracket and the second side bracket are respectively rotatably connected to the sharpening stand; a fastening mechanism is provided between the first side bracket and the second side bracket with the sharpening stand, the fastening mechanism is configured to fix the sharpening stand to limit its rotation.
  9. The sharpener according to claim 8, wherein the fastening mechanism comprises: an arc-shaped guide groove, which is provided on the first side bracket and/or the second side bracket; an extension direction of the arc-shaped guide groove is consistent with a rotation direction of the first side bracket/or a rotation direction of the second side bracket; a screw hole, provided on the sliding seat and opposite to the arc-shaped guide groove; tightening screws, which are respectively penetrated the arc-shaped guide groove and the screw hole, and the tightening screws are rotated to fix the sharpening stand.
  10. The sharpener according to claim 6, further comprising a first movable plate and a second movable plate, wherein the first movable plate and the second movable plate are respectively connected to the sharpening stand, and the two movable plates are capable of being moving relative to the sharpening stand to separate from each other and fix the sharpening stand on a sink or approach each other so as to remove the sharpening stand from the sink; and/or the sharpener further comprises a third movable plate and a fourth movable plate, wherein the third movable plate and the fourth movable plate are respectively connected to the sharpening stand, and the two movable plates can move relative to the sharpening stand to approach each other to fix the sharpening stone or separate from each other to remove the sharpening stone.

Description

TECHNICAL FIELD The present disclosure relates to the field of kitchen utensils technologies, and in particular, to a tool clamping assembly and a sharpener. BACKGROUND The tool holder design on traditional sharpeners includes two locking ways, one is a single-sided locking and the other is a double-sided locking. The biggest problem with the single-sided locking is that it cannot guarantee the stability of a double-sided angle of the tool. It requires frequent disassembly of the clamped tool with a wrench tool to achieve angle stability. A grinding process requires disassembly dozens of times to ensure that the double-sided angle of the tool is consistent, which is very cumbersome; the double-sided locking can ensure stable double-sided angle, but requires the use of an internal hexagonal wrench to lock and clamp the tool, which has a function of flipping on two sides. However, the internal hexagonal wrench is cumbersome to operate, and women have less force, which can easily cause a pin hole to slip, rendering it not durable, short service life, labor-intensive, and very unfriendly to women. SUMMARY In view of the above-mentioned problems in the existing technology, the purpose of the embodiment of the present disclosure is to provide a tool clamping assembly and a sharpener. Compared to traditional clamping components, this tool clamping assembly eliminates a need for frequent use of a hexagonal wrench and shortens the clamping and disassembly time of the tool. The technical solution adopted in the embodiments of the present disclosure is as following. A tool clamping assembly used for a sharpener, where the sharpener is provided with a sharpening frame, and the tool clamping assembly includes: an arm body, a first end of the arm body is connected with the sharpening frame, and the arm body is provided with a top pin and a driving member, the driving member is configured to drive the top pin to move along an axial direction of the arm body;a clamping arm component, including a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are mirror symmetric and are connected by a rotation axis, the rotation axis is connected to a second end of the arm body, the rotation axis is provided with a torque member configured to apply torque to the two clamping arms to jointly clamp the top pin at a first end of the first clamping arm and a first end of the second clamping arm;when the top pin is moved, the first clamping arm and the second clamping arm are rotated synchronously, so that a second end of the first clamping arm and a second end of the second clamping arm are closed to each other to clamp the tool or separate from each other to release the tool. Furthermore, a shape of the top pin is a trapezoidal block, and a first side wall surface and a second side wall surface of the top pin are mirror symmetric about a symmetry plane between the first clamping arm and the second clamping arm; the first side wall surface of the top pin abuts against the first end of the first clamping arm, and the second side wall surface of the top pin abuts against the first end of the second clamping arm. Furthermore, the driving member is a driving nut, which is located on one side of the top pin away from the rotation axis and abuts against the top pin; the driving nut is threaded with the arm body, and the driving nut is capable of being rotated relative to the arm body to drive the top pin to be close to the rotation axis. Furthermore, the arm body includes a first arm body, a second arm body, and a rotating sleeve; the first end of the first arm body is connected with the sharpening frame, the first end of the second arm body is connected to the top pin, and the rotating sleeve is fixedly connected to the second end of one of the two arm bodies and threaded to the second end of the other arm body;the top pin and the driving member are respectively located on the second arm body. Furthermore, the tool clamping assembly further includes a rotating joint, where the rotating joint is connected to the first end of the arm body and the sharpening frame, and the rotating joint causes the arm body to swing relative to the sharpening frame. A sharpener, including: a sharpening stand, configured to fix a sharpening stone;a sharpening frame, provided on the sharpening stand, where the sharpening frame is capable of moving relative to the sharpening stand; andthe tool clamping assembly, which is connected to the sharpening frame and capable of moving with the sharpening frame to grind a tool through the sharpening stone. Furthermore, a first guide member is provided on one side of the sharpening stand facing away from the sharpening stone; the sharpener further includes a sliding seat, where a second guide member is provided on the sliding seat, and the first guide member and the second guide member can cooperate with each other to enable the sliding seat to slide relative to the sharpening stand