CN202411477U

CN202411477U - Impact drill

Info

Publication number: CN202411477U
Application number: CN2011205562897U
Authority: CN
Inventors: 朱文超
Original assignee: ZHEJING DAHUA ELECTRIC TOOLS CO Ltd
Current assignee: ZHEJING DAHUA ELECTRIC TOOLS CO Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-09-05
Anticipated expiration: 2021-12-27

Abstract

The utility model relates to an electric tool, in particular to an impact drill which comprises a casing; the casting is provided with a horizontal cavity; a motor is arranged in the casing; one end of a rotor of the motor is connected with a carbon brush in the casing; the other end of the rotor is meshed with a gear; the gear is mounted at one end, extending from the casing, of an output shaft; a drill chuck is mounted at the other end of the output shaft; an impact block is arranged at the end of the output shaft in a matching manner, and connected with a pushing button; and an impact spring is sleeved at the other end of the output shaft. The gear is driven by the rotor to drive the output shaft to rotate, and when the impact drill is in operation, an operator pushes the pushing button to enable a drill bit to generate an impact force. Therefore, the impact drill provides a convenience for the operator, without applying a great axial force in the axial direction by the operator.

Description

A kind of percussion drill

Technical field

The utility model relates to electric tool, is a kind of hand-held hammering drill specifically.

Background technology

Existing percussion drill generally includes casing, is arranged on the motor in the casing and extends the outer output shaft of casing; Output shaft is driven through reduction gearing by motor; One end of output shaft is provided with drill chuck, fixedly contains drill bit in it, and it is used on workpiece, holing; Output shaft is provided with active toothed disk, this active toothed disk and fixed tooth disk engagement.When percussion drill is started working, starter motor, the driven by motor output shaft rotates, and further drives the drill bit rotation; When drill bit was pressed on the workpiece, owing to receive the reaction force of workpiece, drill bit, drill chuck, output shaft, active toothed disk will move until meshing with fixed tooth disk together backward.This percussion drill needs the operator to apply very big axial force when work, causes fatigue easily, to operator very inconvenience.

The utility model content

The utility model has solved above-mentioned technical problem, and a kind of percussion drill easy to use is provided.

The technical scheme that the utility model solves the problems of the technologies described above employing is: a kind of percussion drill; Comprise the casing that forms horizontal cavity; Be provided with a motor in the said casing, an end of the rotor of this motor carbon brush interior with being arranged at casing is connected the said rotor other end and a gears engaged; This gear is installed in an end of an output shaft that extends said casing, and the said output shaft other end is equipped with drill chuck.

The utility model also has following additional technical feature:

The said end cooperation of output shaft is provided with an impact block, and said impact block is connected with a push button; The said other end of output shaft is arranged with impact spring.

Vertically be provided with one handle on the said casing, handle is provided with anti-skidding line.

Level is provided with scale on the said casing.

Can know that from above technical scheme the utility model drives output shaft through the rotor banding moving gear and rotates, when percussion drill is worked; The operator promotes push button, impacts thereby drill bit is produced, therefore; This percussion drill need not the operator and applies very big axial force at axial direction, for the operator provides convenience.

Description of drawings

Fig. 1 is the utility model part cross-sectional schematic;

Fig. 2 is the structural representation of a kind of optimal way of the utility model.

The specific embodiment

Specify the utility model below in conjunction with accompanying drawing 1 to Fig. 2:

This percussion drill comprises the casing 1 that forms horizontal cavity; Be provided with a motor 2 in the said casing 1; One end of the rotor 21 of this motor 2 carbon brush 3 interior with being arranged at casing is connected; The said rotor other end and a gear 5 engagements, this gear is installed in an end of an output shaft 6 that extends said casing, and said output shaft 6 other ends are equipped with drill chuck 7; Output shaft 6 said ends cooperations are provided with an impact block 8, and said impact block is connected with a push button 9; The said other end of output shaft is arranged with impact spring 10.When percussion drill was worked, the operator promoted push button, made impact block be resisted against a said end of output shaft, thereby produced percussion; Said impact spring has cushioning effect in impact process, the start protection effect.

In this embodiment, vertically be provided with one handle 11 on the said casing 1, handle is provided with anti-skidding line, prevents that the operator from skidding at the hand of the course of work; Level is provided with scale 12 on the said casing 1, can understand the degree of depth of boring at any time; From the above the utility model need not the operator and applies very big axial force at axial direction, and for the operator provides convenience, its setting is more rationally more humane.

Above-mentioned embodiment only supplies to explain the usefulness of the utility model; And be not to be the restriction to the utility model; The those of ordinary skill in relevant technologies field; Under the situation that does not break away from the utility model spirit and scope, can also make various variations or modification, so all technical schemes that are equal to also should belong to the category of the utility model.

Claims

1. percussion drill; Comprise the casing (1) that forms horizontal cavity; Be provided with motor (2) in the said casing (1), it is characterized in that: an end of the rotor of said motor (21) carbon brush (3) interior with being arranged at casing is connected, the said rotor other end and a gear (5) engagement; This gear is installed in an end of an output shaft (6) that extends said casing, and the said output shaft other end is equipped with drill chuck (7).

2. a kind of percussion drill according to claim 1 is characterized in that: the said end cooperation of output shaft (6) is provided with an impact block (8), and said impact block is connected with a push button (9); The said other end of output shaft is arranged with impact spring (10).

3. a kind of percussion drill according to claim 1 is characterized in that: vertically be provided with one handle (11) on the said casing (1), handle is provided with anti-skidding line.

4. a kind of percussion drill according to claim 1 is characterized in that: said casing (1) is gone up level and is provided with scale (12).