CN209551919U - A kind of limited block trigger architecture for electric circular saw - Google Patents

Abstract

The utility model discloses a kind of limited block trigger architectures for electric circular saw, including handle, the push button being set on handle, limited block in handle, handle is additionally provided with the punched out for being pierced by for limited block, handle inner is equipped with the first rotating fulcrum, rotating connector is rotatably connected on first rotating fulcrum, one end of rotating connector contacts at push button, push button drives rotating connector to rotate relative to handle, handle is additionally provided with and rotating fulcrum, the other end of rotating connector contacts at limited block, rotating connector drives limited block to rotate relative to handle, it is supported between limited block and handle and is equipped with torsional spring.The utility model has the following advantages that and effect: this programme utilizes new mechanical structure, the triggering of limited block is realized using the linkage between rotating connector and limited block, with the simple effect of structure, and user is more convenient in installation, use, maintenance, also has the effect of lower production costs；The effect to automatically reset can be played using torsional spring.

Description

A kind of limited block trigger architecture for electric circular saw

Technical field

The utility model relates to electric circular saw field, in particular to a kind of limited block trigger architecture for electric circular saw.

Background technique

Electric circular saw is one kind using single phase series motor as power, then drives saw blade to carry out sawing work by transmission mechanism The tool of industry is suitable for carrying out sawing action to timber, fiberboard, plastics and flexible cable and similar material.Electric circular saw uses Carry climbing formula contour structures, mainly by motor, reduction gearbox, shield, regulating mechanism and bottom plate, handle, switch, can not reclosing insert Head, saw blade composition, saw blade are located in shield.When using electric circular saw, electric circular saw is placed on plate to be cut, so After start motor, regulation handle cuts plate by saw blade.

It is provided with motor switch, trigger and push button on the handle of usual electric circular saw, limited block is additionally provided with, is set on shield It is equipped with the slideway for limited block sliding, limited block, which can be used for being located at the position in shield to saw blade, to be defined, and is generally passed through Push push button that the change of state of limited block may be implemented.When being slided after limited block is in alignment with chute inlet along slideway, i.e., in fact The unlock of existing limited block position；When limited block is located at slideway one end and misplaces with chute inlet, that is, realize limited block position Locking, handle can not be rotated relative to shield at this time.

But existing electric circular saw limited block trigger architecture has the disadvantage in that the trigger architecture setting of limited block is more complex, Installation personnel is more inconvenient during installation, and in maintenance there is also certain difficulty, production cost is also higher.

Utility model content

The purpose of the utility model is to provide a kind of limited block trigger architectures for electric circular saw, have structure simpler, Setter is more convenient during installation and lower-cost effect.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of for electric circular saw Limited block trigger architecture, including handle, the push button being set on handle, the limited block being set in handle, handle is additionally provided with Punched out for being pierced by for limited block, handle inner are provided with the first rotating fulcrum, are rotatably connected on the first rotating fulcrum Rotating connector, one end of rotating connector contact at push button, and push button drives rotating connector to rotate relative to handle, and handle is also It is provided with the second rotating fulcrum, the middle part of limited block and the second rotating fulcrum are rotatablely connected, and the other end of rotating connector contradicts In limited block, rotating connector drives limited block to rotate relative to handle, supports between limited block and handle and is equipped with torsional spring, torsional spring pair The force direction of limited block is opposite with force direction of the rotating connector to limited block.

First push button is pushed up when limited block is triggered by using above-mentioned technical proposal, push button is made to drive rotation Connector is rotated counterclockwise around the first rotating fulcrum.Under the action of the first rotating fulcrum, rotating connector contacts at limited block One end also rotated around the first rotating fulcrum, while limited block being pushed to contact at one end rotation of rotating connector, limited block is whole Body is rotated around the second rotating fulcrum, and limited block, which is located at one end outside handle and is located at one end in handle relative to limited block, reversely to be turned It is dynamic, the triggering of limited block so can be realized, there is the simple effect of structure, and user is no matter in installation, use, maintenance It is all more convenient, also have the effect of lower production costs.When push button release is at nature, limited block is in torsional spring Automatic rotary restores limited block to reset condition around the rotation of the second rotating fulcrum to original position under driving effect.

The utility model is further arranged to: the block positioned at limited block two sides is provided on handle, between two blocks Limiting slot is formed, limiting slot is connected to punched out.

By using above-mentioned technical proposal, limited block two sides setting block can play guiding to limited block to a certain extent Effect avoids limited block from causing skew when swinging.

The utility model is further arranged to: the second rotating fulcrum is set between two blocks.

By using above-mentioned technical proposal, limited block, which is rotationally connected on the second rotating fulcrum, makes limited block be located at two gears Between block.

The utility model is further arranged to: third rotating fulcrum is provided in handle, torsion spring set is rotated set on third Fulcrum is provided with bumping post in handle, and one end of torsional spring contacts at limited block, and the other end of torsional spring contacts at bumping post.

By using above-mentioned technical proposal, when limited block is rotated by the effect of rotating connector, due to the two of torsional spring End is limited block respectively and bumping post is kept out, so can compress to torsional spring when limited block is rotated around third rotating fulcrum.

The utility model is further arranged to: the groove for torsional spring insertion is offered on limited block.

By using above-mentioned technical proposal, one end of torsional spring is inserted into groove, when limited block acts on torsional spring, due to The barrier effect of groove two sides can avoid torsional spring to a certain extent and slip away from limited block, has effect more stable in operation Fruit.

The utility model is further arranged to: drive block is provided on push button, rotating connector offsets with drive block matches It closes, drive block is for driving rotating connector to rotate around the first rotating fulcrum.

By using above-mentioned technical proposal, when push button pushes up, drive block is transported upwards simultaneously under the drive of push button It is dynamic, and rotating connector is driven to move counterclockwise around the first rotating fulcrum.

In conclusion the utility model has the following beneficial effects: real using the linkage between rotating connector and limited block The triggering of existing limited block has the simple effect of structure, and user is more convenient in installation, use, maintenance, also has production Lower-cost effect；The effect to automatically reset can be played using torsional spring.

Detailed description of the invention

Fig. 1 is the structural relation schematic diagram of handle inner in embodiment.

Fig. 2 is the positional diagram of punched out in handle in embodiment.

Fig. 3 is the positional diagram between the torsional spring, limited block, the first rotating connector of embodiment.

Fig. 4 is the positional diagram between block and limited block in embodiment on handle.

In figure: 1, handle；11, punched out；12, block；13, limiting slot；14, bumping post；2, push button；21, drive block；3, it limits Position block；31, groove；4, the first rotating fulcrum；41, rotating connector；5, the second rotating fulcrum；6, third rotating fulcrum；7, it turns round Spring.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.For ease of description, following "upper", "lower", " clockwise ", " counterclockwise " are consistent with direction described in attached drawing.

A kind of limited block trigger architecture for electric circular saw is provided on handle 1 as depicted in figs. 1 and 2, including handle 1 Push button 2 is also provided with punched out 11 on handle 1, limited block 3 is rotatably connected in punched out 11.When limited block 3 need to be triggered When, push button 2 is pushed, limited block 3 is swung, 3 state of limited block can be made to change.

As shown in Figs 1-4, handle 1 is internally provided with the first rotating fulcrum 4, is rotatably connected on the first rotating fulcrum 4 Follower link 41, punched out 11 are opened in the side of handle 1, and there are two symmetrical block 12, two blocks for setting outside handle 1 Limiting slot 13 is formed between 12, limiting slot 13 is connected to punched out 11, the second rotating fulcrum 5 is provided between two blocks 12, limits The middle part of block 3 is rotationally connected on the second rotating fulcrum 5, and limited block 3 is piercing in 11 rear portion of punched out and is located in handle 1 Portion, another part are located in limiting slot 13.One end of rotating connector 41 contacts at push button 2, is provided with drive block on push button 2 21, rotating connector 41 and drive block 21 offset cooperation, and the driving rotating connector 41 of drive block 21 is revolved around the first rotating fulcrum 4 Turn, the other end of the first rotating connector 41 contacts at the upper end of limited block 3.Third rotating fulcrum 6 is provided in handle 1, the Torsional spring 7 is arranged on three rotating fulcrums 6, torsional spring 7 is to the force direction and rotating connector 41 of limited block 3 to limited block 3 Force direction is on the contrary, torsional spring 7 drives limited block 3 to move upwards；The lower end of limited block 3 offers one end insertion for torsional spring 7 Groove 31, be additionally provided with bumping post 14 inside handle 1, one end of torsional spring 7 contacts in the groove 31 of limited block 3, torsional spring 7 it is another One end contacts at bumping post 14.

Push button 2 is pushed up, the drive block 21 on push button 2 is made to drive rotating connector 41 inverse around the first rotating fulcrum 4 Hour hands rotation.Under the action of the first rotating fulcrum 4, rotating connector 41 contacts at one end of limited block 3 also around the first rotation Fulcrum 4 rotates counterclockwise, while the one end for pushing limited block 3 to contact at rotating connector 41 moves downward, limited block 3 Torsional spring 7 is compressed during moving downward.One end of torsional spring 7 is inserted into groove 31, when limited block 3 makees torsional spring 7 Used time can avoid torsional spring 7 to a certain extent and slip away from limited block 3, had operation due to the barrier effect of 31 two sides of groove On more stable effect.When one end that limited block 3 contacts at rotating connector 41 moves down, under the action of the second rotating fulcrum 5, One end that limited block 3 is located in limiting slot 13 is swung up.The triggering of limited block 3 so can be realized.The setting of 3 two sides of limited block Block 12 can play guiding role to limited block 3 to a certain extent, avoid axial direction pendulum of the limited block 3 along the second rotating fulcrum 5 It moves and causes skew.

Push button 2 is unclamped, one end that limited block 3 is located inside handle 1 moves upwards automatically under the driving effect of torsional spring 7, Due to the effect of the second rotating fulcrum 5, one end that limited block 3 is located in limiting slot 13 is moved downward, and restores limited block 3 to original Beginning state.The rotate driving rotating connector 41 of limited block 3 rotates clockwise, resets rotating connector 41.

The basic functional principle of the utility model are as follows: when limited block 3 need to be triggered, first push button 2 is pushed up, makes to push away Button 2 drives rotating connector 41 to rotate counterclockwise around the first rotating fulcrum 4.Under the action of the first rotating fulcrum 4, rotation connection One end that part 41 contacts at limited block 3 is also rotated around the first rotating fulcrum 4, while limited block 3 being pushed to contact at rotating connector 41 one end rotation, limited block 3 it is whole around the and rotating fulcrum 5 rotates, limited block 3 is located at one end outside handle 1 relative to limit One end that position block 3 is located in handle 1 rotates backward, and the triggering of limited block 3 so can be realized, and has the simple effect of structure, And no matter more convenient in installation, use, maintenance user is, also has the effect of lower production costs.The release of push button 2 is made Its in the raw when, the automatic rotary under the driving effect of torsional spring 7 of limited block 3 makes limited block 3 around the second rotation to original position The rotation of fulcrum 5 restores to reset condition.

The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (6)

1. a kind of limited block trigger architecture for electric circular saw, including handle (1), the push button being set on the handle (1) (2), the limited block (3) being set in the handle (1), the handle (1) are additionally provided with for being pierced by for the limited block (3) Punched out (11), it is characterised in that: the handle (1) is internally provided with the first rotating fulcrum (4), first rotating fulcrum (4) it is rotatably connected on rotating connector (41), one end of the rotating connector (41) contacts at the push button (2), described Push button (2) drives the rotating connector (41) to rotate relative to the handle (1), and the handle (1) is additionally provided with second turn Activity supporting point (5), the middle part of the limited block (3) and second rotating fulcrum (5) are rotatablely connected, the rotating connector (41) The other end contact at the limited block (3), the rotating connector (41) drives the limited block (3) relative to the handle (1) it rotates, is supported between the limited block (3) and the handle (1) and be equipped with torsional spring (7), the torsional spring (7) is to the limited block (3) force direction is opposite with force direction of the rotating connector (41) to the limited block (3).

2. a kind of limited block trigger architecture for electric circular saw according to claim 1, it is characterised in that: the handle (1) it is provided with the block (12) positioned at the limited block (3) two sides on, forms limiting slot (13) between two blocks (12), The limiting slot (13) is connected to the punched out (11).

3. a kind of limited block trigger architecture for electric circular saw according to claim 2, it is characterised in that: described second turn Activity supporting point (5) is set between two blocks (12).

4. a kind of limited block trigger architecture for electric circular saw according to claim 1, it is characterised in that: in handle (1) It is provided with third rotating fulcrum (6), the torsional spring (7) is sheathed on the third rotating fulcrum (6), setting in the handle (1) Have bumping post (14), one end of the torsional spring (7) contacts at the limited block (3), and the other end of the torsional spring (7) contacts at described Bumping post (14).

5. a kind of limited block trigger architecture for electric circular saw according to claim 4, it is characterised in that: the limited block (3) groove (31) for the torsional spring (7) insertion is offered on.

6. a kind of limited block trigger architecture for electric circular saw according to claim 1, it is characterised in that: the push button (2) it is provided on drive block (21), the rotating connector (41) and the drive block (21) offset cooperation, the drive block (21) for driving the rotating connector (41) to rotate around first rotating fulcrum (4).