CN208644244U - A kind of mini electric circular saw - Google Patents
A kind of mini electric circular saw Download PDFInfo
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- CN208644244U CN208644244U CN201821302115.6U CN201821302115U CN208644244U CN 208644244 U CN208644244 U CN 208644244U CN 201821302115 U CN201821302115 U CN 201821302115U CN 208644244 U CN208644244 U CN 208644244U
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Abstract
The utility model belongs to field of power tools, it is related to a kind of mini electric circular saw, including shell, motor and circuit, switching mechanism, saw blade, transmission mechanism, it is characterized in that, switching mechanism includes switch member, switch trigger component, and switch trigger component includes switch trigger, and switch trigger and hand-held part rotation are hinged, switch contact is arranged in the one end for switching trigger, and switch contact is protruded into shell and can be contacted with switch member；It switchs and rotation locking button is set on trigger, rotation locking button connects with trigger rotary hinge is switched, and torsional spring, the lateral surface of the hand-held part and the position setting finite place piece for corresponding to rotation locking button is arranged in hinged place, then rotating locking button can contradict with locating part；Resetting-mechanism is provided between switch trigger and hand-held part.The utility model increases switch trigger and rotation locking button on the basis of original construction of switch, forms double step switch, reduces maloperation risk；And it is double acting to can be completed as one-handed performance.
Description
Technical field
The utility model belongs to field of power tools, and in particular to a kind of electric hand tool, mini electric circular saw.
Background technique
For Handheld electric circular saw, construction of switch and switch motion are to lead to the key factor of maloperation.Traditional is hand-held
Formula electric circular saw, switch are mostly step movement, are easy to produce maloperation and lead to unexpected injury.Therefore, our unit's technology people
Member's face reduces the risk of maloperation, improves to construction of switch, improves safety in utilization.
Summary of the invention
There is maloperation mainly for Handheld electric circular saw in the utility model, invented a kind of mini electric circular saw,
Increase switch trigger and rotation locking button on the basis of original construction of switch, forms double step switch, reduce maloperation risk；
And it is double acting to can be completed as one-handed performance.
The above-mentioned technical problem of the utility model is carried out by the following technical programs: a kind of mini electric circular saw,
Including shell, be arranged in the intracorporal motor of shell and corresponding circuit, control electric motor starting and closing switching mechanism, expose to shell
The saw blade of body one end, the transmission mechanism being arranged between motor and saw blade, the shell include hand-held part, which is characterized in that institute
Stating switching mechanism includes being located at the intracorporal switch member of shell, the switch trigger component on the outside of hand-held part.
The switch trigger component includes switch trigger, and switch trigger is hinged by articulation piece and hand-held part rotation, switch
Switch contact is arranged in one end of trigger, and switch contact is protruded into shell and can be contacted with switch member.
Rotation locking button is provided on switch trigger, which locks button and is connect by articulation piece and switch trigger rotary hinge,
And hinged place be arranged torsional spring, meanwhile, the lateral surface of the hand-held part and correspond to rotation locking button position be provided with phase
To the locating part of evagination, then rotating locking button can mutually contradict with locating part, and switch trigger and hand-held part lateral wall it
Between claming angle with rotation locking button rotation and be gradually increased or be gradually reduced.
Above-mentioned switch trigger component could be acted by two movements, switch, be prevented maloperation, risk is preferably minimized；
Double acting to be as concrete operations, hand grasps hand-held part, and the thumb of hand is close to the top of hand-held part, under other four fingers are located at
Side, the index finger or middle finger of hand drive rotation locking button to be rotated, while in addition to unexpected four finger lifts of thumb are opened
Trigger is closed, makes the switch contact contact intracorporal switch member of shell for switching trigger, starts motor, this design is more in line with ergonomic
Principle is learned, one-handed performance can be completed, while improve the comfort level of hand gripping, not easily cause hand fatigue.
Resetting-mechanism is provided between switch trigger and the hand-held part.When hand is held, dynamics weakens or electric circular saw is anticipated
When outer disengaging hand, switch trigger can be reset to initial position in time by resetting-mechanism, and cut-out switch closes motor, be improved
Safety.
Preferably, the resetting-mechanism includes one section of reset spring.
Preferably, one end of the separate switch contact of switch trigger is arranged in the reset spring；The end is provided with one
The mounting groove of indent is enclosed, one end of reset spring is connected to mounting groove, and the other end of reset spring is connected to hand-held part.Using multiple
For position spring as resetting-mechanism, structure is simple, is easily installed, and effect stability is reliable.
Preferably, the rotation locking button include rotary body, it is the eccentric body extended towards hand-held part by rotary body, separate
The rotating handle of eccentric body.The setting of rotating handle is to provide for the point of application of a hand, improves the convenience of operation.
Preferably, on the switch trigger and two sides of rotation locking button are provided with rotary stopper part, then rotation lock
In the rotary course of tight button, the both ends of eccentric body can be with the one-to-one conflict of rotary stopper part of two sides.The setting of torsional spring makes to revolve
There is tight button of twist lock itself certain rotation to tend to, and rotary stopper part is used to limit the rotation angle of rotation locking button, avoids
Rotation excessively leads to not the situations such as operate or can not reset.
Preferably, the eccentric body is set as the coupler body of arc；Hollow out position is formed between coupler body and rotary body, with reality
The eccentric body of body is compared, and the eccentric body of coupler body shape is conducive to reduce the weight of body.
Preferably, the transmission mechanism is set as multilevel gear drive mechanism, it is small including what is connect with motor output shaft
Cone tooth and the big spiral bevel gear of conelet tooth engagement, the one-stage gear axis and one-stage gear that are vertically connected at big spiral bevel gear
The gear wheel of axis engagement, the pinion gear engaged with gear wheel, then the center of pinion gear vertically connects transmission shaft, one end of transmission shaft
Vertical connection saw blade.Using stage-geared structure, the output torque of machine is improved, provides powerful move for machine
Power；In practical cutting process, machine can provide 1000W or so power for a long time, and torque is up to 2.1N.m, and revolution can maintain
3000rpm or so；It is machine when cutting thicker plank, that is, provides sufficient power, in turn ensures cutting effect well
Rate.
In conclusion the utility model has the advantages that compared with prior art
The utility model increases switch trigger and rotation locking button on the basis of original construction of switch, forms double acting open
It closes, adopting reduces maloperation risk；The utility model can be completed for one-handed performance, index finger or the corresponding rotation locking button of middle finger, together
When, hand lifting switch trigger realizes switch operation, is more in line with ergonomics, improves the comfort level that hand is held, be not easy
Cause hand fatigue；The utility model uses three-level transmission mechanism, improves the output torque of machine, provides for machine powerful
Power provide sufficient power when cutting thicker plank, in turn ensure good cutting efficiency, compensate for mesh
Preceding Handheld electric circular saw power is small, and torque is inadequate, and depth of cut problem less than normal expands use scope.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of the switch trigger component of the utility model；
Fig. 3 is the cross-sectional view of the drive mechanism of the utility model.
Figure label are as follows: 1, shell；2, saw blade；3, transmission mechanism；4, hand-held part；5, switch member；6, trigger component is switched；
7, trigger is switched；8, switch contact；9, rotation locking button；10, torsional spring；11, locating part；12, reset spring；13, eccentric body；
14, rotating handle；15, small bevel gear；16, big spiral bevel gear；17, one-stage gear axis；18, gear wheel；19, pinion gear.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1:
As shown in Figure 1, a kind of mini electric circular saw, shell 1 is substantially cylindrical, and centre is in slightly narrow hand-held part 4, straight
The grasping that diameter size or fineness are convenient for hand firm；Shell 1 it is open at one end, closed at one end, open end has exposed
Saw blade 2 and measurer for measurement angle and length；Motor and corresponding control circuit are installed, for controlling electricity in shell
Switch member machine starting and closed installs transmission mechanism 3 between motor and saw blade 4.
As shown in figure 3, specifically, transmission mechanism 3 uses three-stage cylindrical gear mechanism, including what is connect with motor output shaft
Small bevel gear 15, the big spiral bevel gear 16 engaged with small bevel gear 15, the level-one tooth for being vertically connected at big 16 center of spiral bevel gear
Wheel shaft 17, the gear wheel 18 engaged with one-stage gear axis 17, the pinion gear 19 engaged with gear wheel 18, and the center of pinion gear 19
Vertical connection transmission shaft, one end of transmission shaft vertically connects saw blade.
Shown hand-held part 4 and the position setting switch trigger component 6 referred to corresponding to hand in addition to thumb unexpected four, are opened
The outside that trigger component is located at hand-held part is closed, as shown in Fig. 2, switch trigger component 6 includes the switch trigger 7 of strip, switch
There is a switch contact 8 of a protrusion in one end of 1 closed end of close shell of trigger 7, and switch contact 8 protrudes into shell 1 and can be with
Switch member 5 in shell 1 contacts；The middle part of switch trigger 7 is rotated hingedly by axis and hand-held part 4；Switch trigger 7 is kept away from
The mounting groove of the one circle indent of one end setting of contact 8 is closed, connects one section of reset spring 12, the upper end of reset spring 12 in mounting groove
It is connected to hand-held part 4.
At the middle part of switch trigger 7 between reset spring 12, there is a rotation to lock button 9, specifically by intermediate rotary body,
The eccentric body 13 on top, the rotating handle 14 of lower part are constituted, and are integrally formed；Rotary body is revolved by straight pin and switch trigger 7
Turning hinge connects, meanwhile, torsional spring 10 is installed in hinged place；Eccentric body 13 is arc-shaped from rotary body and extends towards hand-held part, is in coupler body,
Meanwhile there is the locating part 11 of an opposite evagination at the lateral surface of the hand-held part 4 and the position for corresponding to rotation locking button 9, then revolve
The tight button 9 of twist lock can with locating part 11 mutually contradict, and switch the claming angle between 4 lateral wall of trigger 7 and hand-held part with
Rotation locking button 9 rotation and be gradually increased or be gradually reduced；Rotating handle 14 is in shorter bar shaped.
In order to limit the maximum rotational steps of rotation locking button 9, rotary stopper part is set in the two sides of rotation locking button 9,
Specifically, rotary stopper part is the lug boss or recessed portion switched on trigger 7, can be with the conflict of the both ends of eccentric body 13
It can；In the rotary course for then rotating locking button 9, the both ends of eccentric body 13 can be with the one-to-one conflict of rotary stopper part of two sides；
To avoid rotation from excessively leading to not the situations such as operate or can not reset.
The outer dimension of the utility model: motor uses 53 punching of φ, is more suitable one-handed performance, handengagabie portion it is outer
Shape size only has 57mm or so, and long-time operation is not easy tired.
In practical cutting process, the utility model can provide 1000W or so power for a long time, and torque is up to 2.1N.m,
Revolution can maintain 3000rpm or so.It is machine when cutting thicker plank, that is, provides sufficient power, in turn ensure
Good cutting efficiency.
In terms of depth of cut, although the utility model, only with the saw blade of φ 120mm, depth of cut is but up to
45mm, and 185 electric circular saw on the market, depth of cut can only guarantee that 65mm, general mini saw only have 26 or so；This is practical new
Though type machine is small, depth of cut meets routine use enough.
In terms of cutting type, the structure design of the utility model considers diamond saw blade, HSS HSS sawblade.Make
It obtains machine and is not limited to cutting panels of wood, while a tractor serves several purposes can also be realized with cutting tile, aluminium sheet etc..
Specific embodiment described in text is only to give an example to the spirit of the present invention.Belonging to the utility model
Those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitutes, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of mini electric circular saw, including shell (1), setting are in the intracorporal motor of shell and corresponding circuit, control electric motor starting
And the switching mechanism of closing, the saw blade (2) for exposing to shell one end, the transmission mechanism (3) being arranged between motor and saw blade, institute
Stating shell includes hand-held part (4), which is characterized in that the switching mechanism includes positioned at the intracorporal switch member of shell (5), positioned at hand-held
Switch trigger component (6) on the outside of portion；
The switch trigger component includes switch trigger (7), and switch trigger is hinged by articulation piece and hand-held part rotation, switch spanner
Switch contact (8) are arranged in one end of machine, and switch contact is protruded into shell and can be contacted with switch member；
Rotation locking button (9) is provided on switch trigger, which locks button and is connect by articulation piece and switch trigger rotary hinge, and
And hinged place be arranged torsional spring (10), meanwhile, the lateral surface of the hand-held part and correspond to rotation locking button position be provided with
The locating part (11) of opposite evagination, then rotating locking button can mutually contradict with locating part, and switch outside trigger and hand-held part
Claming angle between side wall is gradually increased or is gradually reduced with the rotation of rotation locking button；
Resetting-mechanism is provided between switch trigger and the hand-held part.
2. a kind of mini electric circular saw according to claim 1, which is characterized in that the resetting-mechanism includes one section of reset bullet
Spring (12).
3. a kind of mini electric circular saw according to claim 2, which is characterized in that the reset spring setting is in switch trigger
Separate switch contact one end；The end is provided with the mounting groove of a circle indent, and one end of reset spring is connected to mounting groove, multiple
The other end of position spring is connected to hand-held part.
4. a kind of mini electric circular saw according to claim 1 or 3, which is characterized in that the rotation locking button includes rotation
Body, the eccentric body (13) extended towards hand-held part by rotary body, the rotating handle (14) far from eccentric body.
5. a kind of mini electric circular saw according to claim 4, which is characterized in that on the switch trigger and button is locked in rotation
Two sides be provided with rotary stopper part, then rotate locking button rotary course in, the both ends of eccentric body can be with the rotation of two sides
Turn the one-to-one conflict of locating part.
6. a kind of mini electric circular saw according to claim 5, which is characterized in that the eccentric body is set as the hook of arc
Body.
7. a kind of mini electric circular saw described according to claim 1 or 2 or 5 or 6, which is characterized in that the transmission mechanism setting
For multilevel gear drive mechanism, the big curved-tooth bevel gear including the small bevel gear (15) and conelet tooth engagement that are connect with motor output shaft
Take turns (16), the one-stage gear axis (17) for being vertically connected at big spiral bevel gear, the gear wheel (18) engaged with one-stage gear axis, and
The pinion gear (19) of gear wheel engagement, then the center of pinion gear vertically connects transmission shaft, and one end of transmission shaft vertically connects saw blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302115.6U CN208644244U (en) | 2018-08-13 | 2018-08-13 | A kind of mini electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302115.6U CN208644244U (en) | 2018-08-13 | 2018-08-13 | A kind of mini electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208644244U true CN208644244U (en) | 2019-03-26 |
Family
ID=65789879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821302115.6U Active CN208644244U (en) | 2018-08-13 | 2018-08-13 | A kind of mini electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208644244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170700A (en) * | 2019-05-16 | 2019-08-27 | 浙江开创电气股份有限公司 | Electric circular saw |
-
2018
- 2018-08-13 CN CN201821302115.6U patent/CN208644244U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170700A (en) * | 2019-05-16 | 2019-08-27 | 浙江开创电气股份有限公司 | Electric circular saw |
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