Electric tool

Patent metadata

Field	Value
Publication number	US-11364585-B2
Application number	US-202017096430-A
Country	US
Kind code	B2
Filing date	Nov 12, 2020
Priority date	Jan 9, 2020
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

An electric tool includes a housing, a motor, a power output assembly, and a switching member. The housing is provided with a first air outlet and a second air outlet. The power output assembly is connected to the motor. The switching member is capable of rotating in the housing, and the switching member is provided with a third air outlet and a fourth air outlet. The switching member is capable of rotating to a first position and a second position in the housing. When the switching member rotates to the first position, the first air outlet is in communication with the third air outlet and the fourth air outlet is closed by the housing. When the switching member rotates to the second position, the second air outlet is in communication with the fourth air outlet and the third air outlet is closed by the housing.

First claim

What is claimed is:

1. An electric tool, comprising:
a housing provided with a first air outlet and a second air outlet;
a motor arranged in the housing;
a power output assembly connected to the motor; and
a switching member capable of rotating in the housing, wherein the switching member is provided with a third air outlet and a fourth air outlet,
wherein the switching member is capable of rotating to a first position and a second position in the housing; when the switching member rotates to the first position, the first air outlet is in communication with the third air outlet and the fourth air outlet is closed by the housing; and, when the switching member rotates to the second position, the second air outlet is in communication with the fourth air outlet and the third air outlet is closed by the housing, and
wherein the switching member is disposed in the housing and is provided with a through hole for a rotor of the motor to pass through, the switching member is provided with an operating structure for a user to operate to drive the switching member to rotate, and the housing is provided with a hole for the operating structure to pass through.

2. The electric tool of claim 1 , wherein the first air outlet is arranged at an upper end of the housing and the second air outlet is arranged on a side surface of the housing.

3. The electric tool of claim 1 , wherein the switching member comprises an upper wall and a side wall, the third air outlet is arranged on the upper wall of the switching member, and the fourth air outlet is arranged on the side wall of the switching member.

4. The electric tool of claim 3 , wherein the housing is provided with a mounting groove for mounting the switching member, the mounting groove comprises an upper side wall, a lower side wall and a bottom wall, the upper side wall contacts with the upper wall of the switching member, the lower side wall abuts against a lower end of the switching member.

5. The electric tool of claim 4 , wherein the bottom wall of the mounting groove is provided with flanges and the flanges abut against the side wall of the switching member.

6. The electric tool of claim 5 , wherein the number of the flanges is two and the two flanges lock an airflow from the fourth air outlet in an air duct formed between the two flanges.

7. The electric tool of claim 1 , wherein the operating structure is a rib integrally formed on the switching member, the hole is a slot-shaped hole for the rib to pass through, the slot-shaped hole extends along a circumferential direction of the housing, and the rib is capable of sliding in the slot-shaped hole along the circumferential direction of the housing.

8. The electric tool of claim 1 , wherein the electric tool further comprises a guard, the housing comprises a mounting rib for mounting the guard, and the mounting rib is provided with the first air outlet.

9. The electric tool of claim 1 , wherein the motor comprises a motor shaft rotatable about a first axis and the first air outlet extends along a direction obliquely intersecting the first axis.

10. The electric tool of claim 1 , wherein the switching member is arranged at an upper end of the motor.

11. The electric tool of claim 1 , wherein, when the switching member rotates to the first position, the second air outlet is closed by the switching member and, when the switching member rotates to the second position, the first air outlet is closed by the switching member.

12. An electric tool, comprising:
a housing provided with a first air outlet and a second air outlet;
a motor arranged in the housing;
a power output assembly connected to the motor; and
a switching member capable of rotating to a first position and a second position relative to the housing,
wherein, when the switching member rotates to the first position, the first air outlet guides an airflow to blow to the outside of the housing, and the second air outlet is closed by the switching member and, when the switching member rotates to the second position, the second air outlet guides the airflow to blow to the outside of the housing and the first air outlet is closed, and
wherein the switching member is disposed in the housing and is provided with a through hole for a rotor of the motor to pass through.

13. A drywall cutting tool, comprising:
a housing provided with a first air outlet and a second air outlet;
a motor arranged in the housing;
a power output assembly connected to the motor; and
a switching member capable of rotating to a first position and a second position relative to the housing,
wherein, when the switching member rotates to the first position, the first air outlet guides an airflow to blow to the outside of the housing and the second air outlet is closed by the switching member and, when the switching member rotates to the second position, the second air outlet guides the airflow to blow to the outside of the housing and the first air outlet is closed, and
wherein the switching member is disposed in the housing and is provided with a through hole for a rotor of the motor to pass through.

14. The drywall cutting tool of claim 13 , wherein the switching member is provided with a third air outlet and a fourth air outlet; when the switching member rotates to the first position, the first air outlet is in communication with the third air outlet and the fourth air outlet is closed by the housing; and, when the switching member rotates to the second position, the second air outlet is in communication with the fourth air outlet and the third air outlet is closed by the housing.

15. The drywall cutting tool of claim 14 , wherein the switching member comprises an upper wall and a side wall, the third air outlet is provided on the upper wall of the switching member, and the fourth air outlet is provided on the side wall of the switching member.

16. The drywall cutting tool of claim 14 , wherein the switching member is arranged at an upper end of the motor.

17. The drywall cutting tool of claim 13 , wherein the first air outlet is arranged at an upper end of the housing and the second air outlet is arranged on a side surface of the housing.

18. The drywall cutting tool of claim 13 , wherein first air outlet guides an airflow to a working area on an upper side of the drywall cutting tool and the second air outlet guides the airflow to the side of the drywall cutting tool.

Assignees

• Nanjing Chervon Ind Co Ltd

Inventors

• Chen Zhiguo
• Shao Yanxiao

Classifications

• B25F5/008

  Cooling means · CPC title

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• B23B51/04

  {Drills} for trepanning · CPC title

• B23Q11/005 Primary

  by blowing · CPC title

• B23B45/001

  Housing of the drill, e.g. handgrip · CPC title