CN202292699U

CN202292699U - Handheld motor operated tool handle rotation interlocking device

Info

Publication number: CN202292699U
Application number: CN2011203679942U
Authority: CN
Inventors: 章其恩
Original assignee: ZHEJIANG MOXING ELECTRICAL APPLIANCES CO LTD
Current assignee: ZHEJIANG MOXING ELECTRICAL APPLIANCES CO LTD
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-07-04
Anticipated expiration: 2021-09-30

Abstract

The utility model discloses a handheld motor operated tool handle rotation interlocking device, comprising a housing (1), a handle (5), a handle rotation button (3), and a start switch (9). A connection part of the housing (1) is provided with a round groove (2); the handle (5) is disposed in the round groove (2) in the housing (1) rotatably; the handle rotation button (3) is hinged to the handle (5); the inner circle of the connection part of the housing (1) is provided with at least four limiting grooves (6) distributed uniformly; a clock catch part of the handle rotation button (3) is matched with the limiting grooves (6); on a portion symmetrical with the handle rotation button (3), the handle (5) is hinged with an interlocking switch (7) through a torsional spring (8); and a tapered end at one end of the interlocking switch (7) is matched with the limiting grooves (6) and a limiting head at the other end of the interlocking switch is matched with the start switch (9). The handheld motor operated tool handle rotation interlocking device is simple and compact in structure, is easy to operate, is safe and reliable to use, and prevents false operation.

Description

Hand held electric tool handle rotation interlock

Technical field

The utility model relates to a kind of hand held electric tool, the rotatable hand held electric tool of particularly a kind of handle.

Background technology

At present; Hand held electric tool such as electric angle grinder, polishing machine etc. are in order to adapt to manipulating of different station, different angles; On the connecting portion of housing and handle, be provided with circular groove; Handle is arranged on the circular groove of housing rotationally, and the handle rotary knob is hinged on the handle, and through handle rotary knob and cooperating of housing locking rotatable handle.But there is following problem in said structure: the one, after the instrument energized is started working; In manipulating process, press or touch the handle rotary knob because of carelessness; Handle and housing are in rotatable state; Under the rotator inertia effect, cause housing and handle to rotate damage instrument out of control or workpiece, even hurt sb.'s feelings; The 2nd, owing to workman's operation posture, custom, tool work produce the whipping state, instrument is controlled error or the like a variety of causes; Be held in respectively on handle and the body such as two hands; In the rotary handle process, started switch suddenly, instrument is run up suddenly by inactive state, at this time can produce a jerk; Under the situation that does not have enough defences, a hand can grip incessantly body; Cause out of control the hurting sb.'s feelings of housing and handle rotation, have serious potential safety hazard.For this reason, many manufacturers and knowledgeable people develop and study to the problems referred to above, but do not have comparatively desirable product to emerge so far as yet.

Summary of the invention

For overcoming the problems referred to above that the rotatable hand held electric tool of existing handle exists, the purpose of the utility model provides a kind of simple and reasonable, easy to operate, safe and reliable hand held electric tool handle rotation interlock.

The utility model solves this technical problem the technical scheme that is adopted; It comprises housing, handle, handle rotary knob, starting switch, and the connecting portion of housing is provided with circular groove, and handle is arranged on the circular groove of housing rotationally; The handle rotary knob is hinged on the handle; The interior circle of said housing connecting portion is provided with at least four stopper slots that are uniformly distributed with, and the latch part and the stopper slot of handle rotary knob are complementary, and is hinged with interlock switch through torsion spring on the handle of handle rotary knob symmetry; The tapered end and the stopper slot of interlock switch one end are complementary, and the spacing head of the other end matches with starting switch.

The connecting portion of said housing is provided with protruding block, and handle is provided with and the corresponding block groove of block.

After adopting said structure, following advantage is arranged compared with prior art: the one, to work as handle and be in rotation status, the spacing head of interlock switch is buckled on the starting switch, and starting switch can't be pressed, and can prevent that electric tool from starting suddenly; The 2nd, in running order when electric tool, starting switch withstands on the spacing head of interlock switch, and the tapered end of interlock switch is buckled in the stopper slot of housing all the time, and handle can't be rotated.Guaranteeing through the two-way interlocking of interlock switch can be not out of control between handle and the body, thereby starts suddenly when having eliminated rotation or rotation is suddenly brought during work potential safety hazard.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the perspective view of the utility model housing.

Fig. 3 is that the stereochemical structure of the utility model cooperates sketch map.

Structural representation when Fig. 4 presses for the utility model starting switch.

Stereochemical structure when Fig. 5 rotates for the utility model handle cooperates sketch map.

1 housing wherein, 2 circular grooves, 3 handle rotary knobs, 4 back-moving springs, 5 handles, 6 stopper slots, 7 interlock switch, 8 torsion springs, 9 starting switches, 10 blocks, 11 block grooves.

The specific embodiment

Fig. 1 is to shown in Figure 3; Be the specific embodiments of a kind of hand held electric tool handle rotation of the utility model interlock, it comprises housing 1, handle 5, handle rotary knob 3, starting switch 9, and the connecting portion of housing 1 is provided with circular groove 2; Handle 5 is arranged on the circular groove 2 of housing 1 rotationally; Handle rotary knob 3 is hinged on the handle 5, and handle rotary knob 3 is provided with back-moving spring 4, and the interior circle of said housing 1 connecting portion is provided with four stopper slots that are uniformly distributed with 6; The latch part of handle rotary knob 3 and stopper slot 6 are complementary; Be hinged with interlock switch 7 through torsion spring 8 on the handle rotary knob 3 corresponding handles 5, the tapered end and the stopper slot 6 of interlock switch 7 one ends are complementary, the spacing head of the other end matches with starting switch 9.The connecting portion of said housing 1 is provided with protruding block 10, and handle 5 is provided with and block 10 corresponding block grooves 11.

The utility model work is following: as shown in Figure 1, the stopper slot 6 of the tapered end of interlock switch 7 and housing 1 is in separated position, and hand held electric tool is in off position.But handle 5 left-right rotation 90 degree.If need the operating angle of left-right rotation handle 5, can be by lower handle rotary knob 3, the stopper slot of the latch part of handle rotary knob 3 and housing 1 was opened in 6 minutes, and handle 5 is in rotatable state with housing 1, and rotation process is as shown in Figure 5.In the middle of rotation process, interlock switch 7 is under the effect of torsion spring 8, and the spacing head of interlock switch 7 is buckled on the starting switch 9, and the tapered end of interlock switch 7 can not get into the stopper slot 6 of housing 1 at housing 1 connecting portion inner ring surface, and assurance can't be pressed starting switch 9.When handle 5 rotates 90 degree to the left or to the right; Block groove 11 on the handle 5 receives housing 1 protruding block 10 to be stoped; Meanwhile; The latch part of handle rotary knob 3 under the effect of back-moving spring 4 again lock advance the next stopper slot 6 of housing 1, accomplish handle 5 left or dextrad rotate the work of 90 degree, thereby the problem that starts suddenly when having solved rotation.

When hand held electric tool is worked; Press starting switch 9; Starting switch 9 overcomes and promotes interlock switch 7 behind the elastic force of torsion spring 8 and rotate, and the tapered end of interlock switch 7 is locked in the stopper slot 6, and is as shown in Figure 4; Also can't turning handle 5 when guaranteeing that handle rotary knob 3 is pressed, thus the problem of rotation suddenly when having solved work.

Claims

1. a hand held electric tool handle rotates interlock; Comprise housing (1), handle (5), handle rotary knob (3), starting switch (9); The connecting portion of housing (1) is provided with circular groove (2); Handle (5) is arranged on the circular groove (2) of housing (1) rotationally, and handle rotary knob (3) is hinged on the handle (5), it is characterized in that: the interior circle of said housing (1) connecting portion is provided with at least four stopper slots that are uniformly distributed with (6); The latch part of handle rotary knob (3) and stopper slot (6) are complementary; Upward be hinged with interlock switch (7) through torsion spring (8) with the handle (5) of handle rotary knob (3) symmetry, the tapered end of interlock switch (7) one ends and stopper slot (6) are complementary, and the spacing head of the other end matches with starting switch (9).

2. hand held electric tool handle rotation interlock according to claim 1, it is characterized in that: the connecting portion of said housing (1) is provided with protruding block (10), and handle (5) is provided with and the corresponding block groove of block (10) (11).