CN208451537U

CN208451537U - Electric tool

Info

Publication number: CN208451537U
Application number: CN201820770366.0U
Authority: CN
Inventors: 杨熹; 顾伟; S·德格罗特
Original assignee: Bosch Power Tools China Co Ltd
Current assignee: Bosch Power Tools China Co Ltd
Priority date: 2018-05-23
Filing date: 2018-05-23
Publication date: 2019-02-01
Anticipated expiration: 2028-05-23

Abstract

The application discloses a kind of electric tool (100) comprising multi-purpose collet (10) have the first clamping device (101) of clamping impact class attachment and clamp the second clamping device (102) of non-percussion class attachment；Switching mechanism (20), including impact class gear (201) and non-percussion class gear (202), when the switching mechanism (20) are located at impact class gear (201), multi-purpose collet (10) the output impact type games, when the switching mechanism (20) is located at non-percussion class gear (202), the multi-purpose collet (10) exports non-percussion type games；The impact class gear (201) includes at least two gears, has consistent first identification mark (201a) on the impact class gear (201) and first clamping device (101).There is consistent first identification mark on first clamping device of the impact class gear and the clamping impact class attachment, be conducive to user and operating mode and corresponding clamping device are accurately realized into accurate match, reduce maloperation and possible security risk.

Description

Electric tool

Technical field

This application involves electric tool more particularly to a kind of electric tools with different working modes.

Background technique

Electric tool as known in the art, such as hammer drill can have three operating modes adjusted by knob: punching Drilling, drilling and chisel is hit to hit.In percussive drilling mode, drill bit is rotated (drilling) under the drive of the motor simultaneously and is impacted (chisel is hit) movement；In drill mode, drill bit only carries out spinning movement and without percussion action；And in chisel blow mode, it bores Head only carry out percussion action and without spinning movement.In addition, the electric tool, such as hammer drill, also have clamping different The collet of specification drill handle part, one is being used to clamp impact class attachment, as SDS drill bit (Special Direct System Abbreviation, indicates a kind of drill bit specification of tool-free disassembly), it is mainly used for percussive drilling and chisel is hit, another kind is primarily used to press from both sides Non-percussion class attachment is held, as circle handle drill bit, is mainly used for drilling.However, when developer attempts for two kinds of collets to be integrated together When, due to being difficult to require all users can expertly accurately identify operating mode and the realization of corresponding clamping device and Matching, thus the case where it is easy to appear maloperations, service life of a machine is not only influenced, can also cause safety problem when serious.

Therefore, it is necessary to improve to overcome the technical problems existing in the prior art.

Utility model content

What the application to be solved is mainly to provide a kind of electric tool for optimizing operating experience.

In order to solve the above technical problems, the application provides a kind of electric tool comprising multi-purpose collet has clamping impact First clamping device of class attachment and the second clamping device for clamping non-percussion class attachment；Switching mechanism, including impact class shelves Position and non-percussion class gear, when the switching mechanism is located at impact class gear, the first clamping device output impact class fortune Dynamic, when the switching mechanism is located at non-percussion class gear, the multi-purpose collet exports non-percussion type games；The impact class shelves Position includes at least two gears, has consistent first identification mark on the impact class gear and first clamping device.

According to the application, have on the impact class gear and the first clamping device of the clamping impact class attachment consistent The first identification mark, be conducive to user and operating mode and corresponding clamping device accurately realized into accurate match, reduce Maloperation and possible security risk.

Detailed description of the invention

In conjunction with attached drawing refering to the detailed description of following specific embodiments, the application will be more fully appreciated.Wherein:

Fig. 1 shows the positive structure diagram of the application electric tool first embodiment；

Fig. 2 shows the application SDS drill handle part schematic cross-section；

Fig. 3 shows the positive structure diagram of the application electric tool second embodiment；

Fig. 4 shows the positive structure diagram of the application electric tool 3rd embodiment.

Specific embodiment

The specific embodiment of the application is described in detail in 1-2 with reference to the accompanying drawing.

A kind of electric tool 100 of the present embodiment, specially electric hammer or electric drill have impact operating mode and non-percussion Operating mode.The impact operating mode includes chisel blow mode (only output impact) and (output impact+rotation of percussive drilling mode Turn), the non-percussion operating mode includes drill mode (only output rotation).The electric tool 100 includes: multi-purpose collet 10, there is the first clamping device 101 and the second clamping device 102；Switching mechanism 20 has and the impact operating mode pair The impact class gear 201 and non-percussion class gear 202 corresponding with the non-percussion operating mode answered, the impact class gear 201 chisels for including at least only output impact hit gear with and meanwhile export the percussive drilling gear of impact and rotation；Running part (figure Do not show), it is configured to driving to the operating mode that switching mechanism 20 selects into the drill bit that the multi-purpose collet 10 clamps it The corresponding movement of output.The impact class gear 201 and non-percussion class gear 202 of the switching mechanism 20 have differentiable identification Mark, first clamping device 101 and the second clamping device 102, which have, respectively corresponds the impact class gear 201 and non-punching Hit the identification mark of class gear 202.Between the impact class gear and the first clamping device and non-percussion class gear and second The differentiable identification mark being correspondingly arranged between clamping device is conducive to user accurately for drill bit type, operating mode Accurate match is realized with corresponding clamping device, reduces maloperation and security risk.

Consistent identification mark in embodiment illustrated in fig. 1 is specifically, in the first ash of 201 region of impact class gear setting Area 201a is spent, the second gray area 202a that setting can be distinguished with the first gray area 201a in 202 region of non-percussion class gear.Together When, setting and impact class the gear 201 consistent first gray area 201a, Yi Ji on first clamping device 101 Setting and the consistent second gray area 202a of the non-percussion class gear 202 on second clamping device 102.In this way, User be easy to can to recognize proposed adoption operating mode should which kind of attachment clamping device of corresponding selection and which kind of Drill bit improves efficiency to avoid maloperation.Specifically, overall cylindrical, the institute of multi-purpose collet 10 described in the present embodiment Stating the first clamping device 101 has the loose collar being axially movable, and second clamping device 102 has the pine that can be circumferentially rotated Tight ring.First clamping device 101 can clamp SDS drill bit, and second clamping device 102 can clamp round handle drill bit.It is described There is mark 101a, the 102a in instruction operation direction on the loose collar of first clamping device 101 and the second clamping device 102, refer to Show that user is correctly operated.It should be noted that the elaboration of book and attached drawing, the present embodiment use for ease of description The first gray area 201a and the second gray area 202a with different gray scales, in fact by identical color, such as blue and red The difference of color carrying out the identification effect that plays of difference it is also clear that.

Since maloperation, especially non-percussion drill bit are hit there is king-sized potential hazard when projecting, it is described electronic Also there is tool 100 the protection circuit for not starting impact operating mode under conditions of identification is less than impact class drill bit (to scheme not Show).The protection circuit has the sensor (not shown) by judging attachment type according to drill handle part shape, please refers to figure The shank schematic cross-section that class SDS drill bit is impacted shown in 2, since itself is straight with a pair of of impact ball groove 301 and a pair of of rotation Slot 302, circle handle, the square regular sections such as handle or hexagonal handle different from non-percussion, by related sensor (not shown), such as Range sensor can effectively be judged, avoid maloperation from generating actualised risk from driving end.Alternatively, described electronic Gear where the drill bit type that the multi-purpose collet 10 is packed into and switching mechanism 20 can also be arranged in tool 100 is inconsistent Under the conditions of keep idle hardware or software protection module (not shown).Different from the identification mark of auxiliary, protect circuit or Person's protective module itself has cut off a possibility that maloperation is activated from source, further reduced security risk.

The above specific embodiment is merely to illustrate the application, and is not the limitation to the application.For example, above-described embodiment Mainly by assisting user to take correct operation using gray scale or color as differentiable identification mark；Other one In a little embodiments, the consistent identification mark can also be either several combination etc. of identical symbol, material, texture Deng, such as the first material area 201b and the second material area 202b material difference and Fig. 4 third reality in Fig. 3 second embodiment Apply the first texture area 201c and the second texture area 202c in example.In addition, the switching mechanism 20 rushes in above-mentioned fact Example Hitting class gear 201 and non-percussion class gear 202 has differentiable identification mark, first clamping device 101 and the second folder Holding mechanism 102 has the identification mark for respectively corresponding impact the class gear 201 and non-percussion class gear 202, some other It, can also be only in the impact class gear 201 and described the since impact gear bring hidden danger is bigger more urgent in embodiment Consistent first identification mark is set on one clamping device 101, and not necessarily requires the non-percussion class gear 202 and institute simultaneously Stating has consistent the second identification mark 202a for being different from the first identification mark 201a on the second clamping device 102, this It equally may be implemented to distinguish and recognize, to realize prompting and warning function, reach the technical effect that the application is expected.Cause This, those of ordinary skill in related technical field can also make a variety of changes in the case where not departing from scope of the present application And modification, therefore all equivalent technical solutions also belong to the scope of the application, the scope of patent protection of the application should be by right It is required that limiting.

Claims

1. a kind of electric tool (100) comprising:

Multi-purpose collet (10) have the first clamping device (101) of clamping impact class attachment and clamp non-percussion class attachment Second clamping device (102)；

Switching mechanism (20), including impact class gear (201) and non-percussion class gear (202), when the switching mechanism (20) position When impacting class gear (201), the first clamping device (101) output impact type games, when the switching mechanism (20) position When non-percussion class gear (202), the multi-purpose collet (10) exports non-percussion type games；It is characterized in that,

The impact class gear (201) includes at least two gears, the impact class gear (201) and first clamping device (101) there is consistent first identification mark (201a) on.

2. electric tool (100) according to claim 1, which is characterized in that the non-percussion class gear (202) and described There is consistent the second identification mark for being different from first identification mark (201a) on second clamping device (102) (202a)。

3. electric tool (100) according to claim 2, which is characterized in that first clamping device (101) can clamp SDS drill bit, second clamping device (102) can clamp round handle, square handle or hexagonal handle drill；The multi-purpose collet (10) is total Body is cylindrical, and first clamping device (101) has the loose collar being axially movable, second clamping device (102) With the loose collar that can be circumferentially rotated.

4. electric tool (100) according to claim 3, which is characterized in that first clamping device (101) and second There is the mark in instruction operation direction on the loose collar of clamping device (102).

5. electric tool described in any one of -4 (100) according to claim 1, which is characterized in that the impact class gear (201) include at least only output impact chisel hit gear with and meanwhile export the percussive drilling gear of impact and rotation.

6. electric tool described in any one of -4 (100) according to claim 1, which is characterized in that the consistent identification mark Will (201a, 202a) is either several combination of identical color, symbol, material or texture.

7. electric tool described in any one of -4 (100) according to claim 1, which is characterized in that the electric tool (100) With the protection circuit for not starting impact operating mode under conditions of identification is less than impact class attachment.

8. electric tool (100) according to claim 7, which is characterized in that the protection circuit has by according to brill Head handle shapes judge the sensor of attachment type.

9. electric tool described in any one of -4 (100) according to claim 1, which is characterized in that the electric tool (100) It is protected under conditions of inconsistent with gear where switching mechanism (20) with the attachment type being packed into the multi-purpose collet (10) Hold idle hardware or software protection module.

10. electric tool described in any one of -4 (100) according to claim 1, which is characterized in that the electric tool is electricity Hammer or electric drill.