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CN-224223818-U - Switching component for electric tool and electric tool

CN224223818UCN 224223818 UCN224223818 UCN 224223818UCN-224223818-U

Abstract

The application relates to an adapter assembly for an electric tool and the electric tool. The switching assembly for the electric tool comprises a shell, a first transmission shaft, a reverse transmission assembly and an output shaft, wherein one end of the first transmission shaft is positioned in the shell, the other end of the first transmission shaft is used for being connected with the electric tool, the reverse transmission assembly is accommodated in the shell and is in transmission connection with the first transmission shaft, one end of the output shaft is in transmission connection with the reverse transmission assembly, the other end of the output shaft is used for sleeving a working head to be trapped, the output shaft rotates under the transmission action of the reverse transmission assembly, and the rotating direction of the output shaft is opposite to that of the first transmission shaft. The switching assembly can drive the working head to be stranded out to reversely rotate, so that the working head clamped in the wall body is stranded out, the stranded out efficiency of the working head can be improved, and the damage to the wall body can be greatly reduced.

Inventors

  • ZHANG QIBING
  • CHEN GUO

Assignees

  • 江苏东成机电工具有限公司

Dates

Publication Date
20260512
Application Date
20250331

Claims (10)

  1. 1. An adapter assembly for a power tool, the adapter assembly (100) comprising: A housing (10); The first transmission shaft (20) is rotatably supported in the shell (10), one end of the first transmission shaft (20) extends into the shell (10), the other end of the first transmission shaft is in transmission connection with the electric tool (1), and the first transmission shaft (20) rotates around the axis of the first transmission shaft under the driving force of the electric tool (1); The output shaft (40) is rotatably supported on the shell (10), one end of the output shaft (40) is in transmission connection with the first transmission shaft (20), and the other end of the output shaft is provided with an axial hole for receiving the working head (a) to be trapped; An impact transmission assembly (60) accommodated in the housing (10) and connected between the first transmission shaft (20) and the output shaft (40) in a transmission manner; the impact transmission assembly (60) is driven by the electric tool (1) and impacts the output shaft (40) after circumferential energy storage, so that the working head (a) to be stranded out is stranded out by circumferential impact torque.
  2. 2. The adapter assembly for a power tool according to claim 1, wherein the impact transmission assembly (60) applies a circumferential impact to the working head (a) to be relieved in a direction opposite to a direction in which the working head (a) to be relieved is stuck, the impact transmission assembly (60) comprising a reverse transmission assembly (30), the reverse transmission assembly (30) comprising: A second drive shaft (310); And the reversing assembly (320) is in transmission connection with the second transmission shaft (310), and the second transmission shaft (310) rotates under the transmission action of the reversing assembly (320) so that the rotation direction of the second transmission shaft (310) is opposite to that of the first transmission shaft (20).
  3. 3. The adapter assembly for a power tool of claim 2, wherein the reversing assembly (320) comprises: A forward rotation gear (321) connected with the first transmission shaft (20), wherein the forward rotation gear (321) rotates along a first direction along with the first transmission shaft (20); And a reverse gear (322) connected with the second transmission shaft (310), wherein the reverse gear (322) is meshed with the forward gear (321) and rotates in a second direction, and the first direction is opposite to the second direction.
  4. 4. The adapter assembly for a power tool of claim 2, wherein the adapter assembly (100) further comprises: and the speed reducing mechanism (50) is in transmission connection with the second transmission shaft (310).
  5. 5. The adapter assembly for a power tool of claim 1, wherein the impact transmission assembly (60) comprises: A third drive shaft (610) in driving connection with the first drive shaft (20); And the impact assembly (620) is connected with the third transmission shaft (610), and the impact assembly (620) applies circumferential impact torque to the output shaft (40) under the transmission action of the third transmission shaft (610).
  6. 6. The adapter assembly for a power tool of claim 5, wherein an end of the output shaft (40) adjacent to the anvil (621) has an anvil (41); The impact assembly (620) includes: The anvil hammer (621) is sleeved on the periphery of the third transmission shaft (610), the anvil hammer (621) can rotate around the axis of the third transmission shaft (610) and can move along the axis direction of the third transmission shaft, one end, close to the output shaft (40), of the anvil hammer (621) is provided with a hammering part (6212), the hammering part (6212) is clamped with the anvil (41), and the output shaft (40) and the anvil hammer (621) realize power transmission through the cooperation of the hammering part (6212) and the anvil (41); An elastic piece (622) sleeved on the third transmission shaft (610), wherein one end of the elastic piece (622) is connected with the anvil (621), and the other end of the elastic piece is connected with the third transmission shaft (610); The embedded piece (623) is arranged between the anvil (621) and the third transmission shaft (610), and the embedded piece (623) is driven by the third transmission shaft (610) and drives the anvil (621) to reciprocate along the axial direction of the third transmission shaft (610) and rotate along the circumferential direction, so that the anvil (621) applies circumferential impact torque to the output shaft (40).
  7. 7. The adapter assembly for a power tool according to claim 6, wherein the fitting (623) is a steel ball; The outer wall of the third transmission shaft (610) is provided with a moving groove (611); The inner wall of the anvil (621) is provided with a containing groove (6211), the steel ball is positioned in the containing groove (6211) and the moving groove (611), and the steel ball applies acting force to the side wall of the containing groove (6211) under the extrusion of the inner wall of the moving groove (611) so as to drive the anvil (621) to synchronously move.
  8. 8. The adapter assembly for a power tool according to claim 6, wherein the anvil (41) is provided with a pair of receiving protrusions (410), the pair of receiving protrusions (410) being circumferentially distributed around the axis of the output shaft (40), the pair of receiving protrusions (410) being engaged with the anvil hammer (621) in the rotational direction.
  9. 9. The adapter assembly for a power tool according to claim 8, wherein the hammer portion (6212) is provided with a pair of hammer projections (6213), the pair of hammer projections (6213) being circumferentially distributed about an axis of the anvil (621), the pair of hammer projections (6213) being engaged with the pair of receiving projections (410) in a rotational direction.
  10. 10. A power tool, characterized by an adapter assembly for a power tool according to any one of claims 1 to 9.

Description

Switching component for electric tool and electric tool Technical Field The present application relates to power tools, and particularly to a power tool and a switching assembly for the same. Background In the working process of rotary impact type electric tools (such as electric hammers, percussion drills and the like), the drill bit has hard substances such as steel bars and the like which are contacted with the inside of a building, and the drill bit is easy to be blocked. Operators generally get stuck drill bits out of the way by shaking or hammer striking or other manual means. However, the drill bit which is blocked is trapped in a manual operation mode, so that the working efficiency is affected, and the wall is damaged. Disclosure of utility model Accordingly, embodiments of the present application provide an adapter assembly for a power tool and a power tool for solving at least one of the problems in the prior art. In a first aspect, embodiments of the present application provide a adaptor assembly for a power tool, the adaptor assembly comprising: A housing; the first transmission shaft is rotatably supported in the shell, one end of the first transmission shaft is positioned in the shell, and the other end of the first transmission shaft is used for being connected with the electric tool; The output shaft is rotatably connected with the shell, one end of the output shaft is in transmission connection with the reverse transmission assembly, and the other end of the output shaft is provided with an axial hole for receiving the working head to be stranded; The impact transmission assembly is accommodated in the shell and is in transmission connection between the first transmission shaft and the output shaft; The impact transmission assembly is driven by the electric tool and impacts the output shaft after being stored in the circumferential direction, so that the working head to be stranded out is stranded out by circumferential impact torque. With reference to the first aspect of the present application, in an optional implementation manner, a circumferential impact applied to the working head to be stranded out by the impact transmission assembly is opposite to a direction in which the working head to be stranded out is jammed, and the reverse transmission assembly includes: a second drive shaft; And the reversing assembly is in transmission connection with the second transmission shaft, and the second transmission shaft rotates under the transmission action of the reversing assembly, so that the rotation direction of the second transmission shaft is opposite to that of the first transmission shaft. With reference to the first aspect of the present application, in an alternative embodiment, the reversing assembly includes: The forward rotating gear is connected with the first transmission shaft and rotates along a first direction along with the first transmission shaft; And the reversing gear is connected with the second transmission shaft, is meshed with the forward rotation gear and rotates along a second direction, and the first direction is opposite to the second direction. With reference to the first aspect of the present application, in an alternative embodiment, the adapting assembly further includes: And the speed reducing mechanism is in transmission connection with the second transmission shaft. With reference to the first aspect of the present application, in an alternative embodiment, the adapter assembly further includes an impact transmission assembly, the impact transmission assembly including: the third transmission shaft is in transmission connection with the speed reducing mechanism; and the impact assembly is connected with the third transmission shaft and is used for applying circumferential impact torque to the output shaft under the transmission action of the first transmission shaft. In an alternative embodiment, in combination with the first aspect of the present application, the output shaft has an anvil (41) near an end of the anvil, and the impact assembly includes: The anvil hammer is sleeved on the third transmission shaft and is clamped with the output shaft; the elastic piece is sleeved on the third transmission shaft, one end of the elastic piece is connected with the anvil hammer, and the other end of the elastic piece is connected with the third transmission shaft; The embedded piece is movably connected with the anvil and the third transmission shaft, and moves relative to the third transmission shaft under the action of external force and the elastic force of the elastic piece, and drives the anvil to reciprocate along the axis direction of the third transmission shaft, so that the anvil applies circumferential impact torque to the output shaft. With reference to the first aspect of the present application, in an alternative embodiment, the engaging member is a steel ball; The outer wall of the third transmission shaft is provided with a moving groove; The inne