CN207858713U - Hand exempts from screwing screwdriver - Google Patents

Abstract

The utility model is related to field of hand, it discloses a kind of hand and exempts from screwing screwdriver, further include that hand presses button, knife bar locking device, change gear group, elastic component, the change gear group, knife bar locking device and elastic component are in handle including handle and knife bar；It includes just changing hands to press button and invert hand to press button that the hand, which presses button, it is described just change hands to press button and invert hand press button by driving the movement of change gear group to control the rotation clockwise and anticlockwise of knife bar respectively, the knife bar locking device can not lock knife bar as when starting to press button.Electric screw driver is easy to use, but of high cost, and price is also high, and is limited by electricity；Hand screwdriver production cost is low, easy to carry, but completes to turn screw（It unscrews or screwing screw）When need rotation screw knife, it is more inconvenient.Hand exempts from screwing screwdriver, but also can not only be used as normal screws knife by pressing quick screw of twisting, and greatly facilitate the process of dismounting screw.

Description

Hand exempts from screwing screwdriver

Technical field

The utility model is related to a kind of screwdrivers, refer in particular to a kind of can be substituted by way of pressing and rotate the quick pine of simultaneously energy The screwdriver of tight screw, belongs to hand-operated tools technical field.

Background technology

Screwdriver on existing market mainly has two kinds of electric screw driver and hand screwdriver.Electric screw driver uses when side Just, but heavy, production cost is high, and price is also high, and is limited by electricity；Hand screwdriver production cost is low, easy to carry, but completes Turn screw（It unscrews or screwing screw）When need rotation screw knife, it is more inconvenient, palm is generally required when screw is longer And wrist carries out laborious and multiple low-angle to screwdriver（Less than 180 °）Rotation so that hand is easy to ache, turns operation Time is longer, efficiency is low.

Invention content

Against the above deficiency, the utility model provide it is a kind of by way of pressing replace rotation and can quickly elastic spiral shell The screwdriver of silk.

The utility model is achieved through the following technical solutions：Hand exempts from screwing screwdriver, including handle and knife bar, also Button, knife bar locking device, change gear group, elastic component, the change gear group, knife bar locking device and bullet are pressed including hand Property part is in handle；It includes just changing hands to press button and invert hand to press button that the hand, which presses button, and the change gear group passes Dynamic beginning connection hand presses button, and the change gear group driven end connects knife bar, and described just changing hands presses button and reversion Hand presses button by driving the movement of change gear group to control the rotation clockwise and anticlockwise of knife bar, the knife bar respectively Locking device can not lock knife bar as when starting to press button, and the elastic component acts on hand and presses button, and hand is made to press button Playback.

The knife bar lower end end end is equipped with cutter head, and the knife bar upper end end end is equipped with a bit of for installing fixed tooth The short axle of wheel, knife bar upper end are additionally provided with the protrusion of side wall outwardly convex formation.

The rod lock device is made of the first guide rod, the second guide rod, locking set, and the locking is arranged with hole One and hole two, the hole one and hole two coordinate with first guide rod and the second guide rod respectively, the locking set Centre offers and the matched sets of holes of protrusion.

The change gear group is by bevel pinion, bevel gear wheel, spur gear, gear shaft, the first spur rack, the second straight-tooth Item forms, and the bevel pinion is mounted on short axle, and bevel gear wheel and spur gear are mounted on gear shaft, and described is big Bevel gear is meshed with bevel pinion, and first spur rack and the second spur rack are identical, first spur rack and The upper end of two spur racks is with teeth, and lower end is anodontia, and the length that lower end is anodontia is equal to locks set upper side when locking set is in the top Face is slightly longer plus the distance of protrusion axial length to spur gear, the upper end of the first spur rack and the second spur rack respectively with rotating forward Hand presses button and reversion hand pressure button connects.

The elastic component is made of the first elastic component, the second elastic component, third elastic component, first elastic component and Second elastic component upper end presses button and reversion hand presses button and is connected and fixed with just changing hands respectively, and the third elastic component is placed on knife On bar, the third elastic component upper end is held in locking set lower face.

The rotating forward button presses the processing that do roughness respectively different of button upper surface with reversion hand.

The handle outer surface lower end is equipped with the anti-slip part of side wall outwardly convex at one.

The cutter head of the knife bar is changeable type cutter head.

The handle is divided into the first semi-handle and the second semi-handle composition.

Larger when turning power not needing, screwdriver remains stationary as, the different hand of two surface roughnesses of finger down One of press in button（Main points are that the hand of screwdriver is held while pressing slightly to screwdriver support force）, band moving knife Bar quickly rotates clockwise or counterclockwise；Need it is larger when turning power, such as carve at the beginning of unscrewing screw or The last moment of screwing screw, it is not necessary to which pressing button can use as normal screws knife.

The utility model has the beneficial effects that：Not only can quickly twist screw by pressing will but also can be as normal screws knife one Sample uses, and greatly facilitates the process of dismounting screw, improves efficiency.

Description of the drawings

Fig. 1 is the assembling schematic diagram that hand exempts from screwing screwdriver；

Fig. 2 is the structural schematic diagram that hand exempts from screwing screwdriver；

Fig. 3 is the exploded perspective view that hand exempts from screwing screwdriver；

Fig. 4 is the side view that hand exempts from screwing screwdriver in Fig. 3；

Fig. 5 is the part schematic diagram of knife bar and knife bar locking device.

It is marked in each attached drawing as follows：1, handle；10, the first semi-handle；11, the second semi-handle；101, through-hole；102, empty Chamber；1021, slot one；1022, slot two；1023, slot three；103, rach slot；104, gear cavity；105, axocoel；106, button slot； 107, anti-slip part；2, knife bar；201, cutter head；202, short axle；203, protrusion；204, limited block；3, hand presses button；30, it rotates forward Hand presses button；31, reversion hand presses button；301, it is just changing hands and is pressing button upper surface；311, reversion hand presses button upper surface；312, it presses Button bottom；4, knife bar locking device；401, the first guide rod；402, the second guide rod；403, locking set；4031, Kong Yi； 4032, hole two；4033, sets of holes；5, change gear group；501, bevel pinion；502, bevel gear wheel；503, spur gear；504, tooth Wheel shaft；505, the first spur rack；506, the second spur rack；6, elastic component；601, the first elastic component；602, the second elastic component； 603, third elastic component.

Specific implementation mode

The utility model is described in further detail below by embodiment and its attached drawing.

Also referring to Fig. 1 and Fig. 2, the utility model provides a kind of hand and exempts from screwing screwdriver, including handle 1 and knife Bar 2 further includes that hand presses button 3, knife bar locking device 4, change gear group 5, elastic component 6, the change gear group 5, knife bar Locking device 4 and elastic component 6 are in handle 1；It includes just changing hands to press button 30 and invert hand to press button that the hand, which presses button 3, 31, the change gear group 5 transmission beginning connection hand presses button 3, and 5 driven end of change gear group connects knife bar 2, It is described just change hands to press button 30 and invert hand press button 31 by driving the movement of change gear group 5 to control knife bar 2 respectively Rotation clockwise and anticlockwise, the knife bar locking device 4 can not lock knife bar 2 as when starting to press button 3, described Elastic component 6 act on hand and press button 3, so that hand is pressed the playback of button 3.

Referring to Fig. 3,1 structure of handle include through-hole 101, cavity 102, rach slot 103, gear cavity 104, axocoel 105, by Button slot 106, the through-hole 101 are connected to cavity 102 and 1 outside of handle, which connects with cavity 102 and button slot 106 Logical, which is connected to cavity 101, and 106 opening of button slot, 1061 interior diameter is smaller than the interior diameter of button slot 106. Wherein in the cavity 102, it is equipped with slot 1, slot 2 1022, the slot 3 1023 for fixed beam,.For convenience of screwdriver Assembly, in the present embodiment the handle 1 be divided into the first semi-handle 10 and the second semi-handle 11 composition, first semi-handle 10 with In second semi-handle, 11 structure symmetrically, handle 1 can also be an entirety in other embodiments.

Also referring to Fig. 3 and Fig. 5, knife bar 2 is cylindric bar, and the diameter of the knife bar 2 is matched with through-hole 101.The knife 2 lower end end end of bar is equipped with cutter head 201, and in the present embodiment, the cutter head 201 and knife bar 2 are integrally formed, in other embodiment party In formula, which can also be changeable type.2 upper end end end of knife bar is equipped with a bit of for installing the short of fixed gear Axis 202.2 upper end of knife bar is additionally provided with the protrusion 203 of side wall outwardly convex formation, and the protrusion is eight ribs in the present embodiment Columnar protrusion, shape is similar to nut, in other embodiments can be with the protrusion of eight prism-shaped of right and wrong.Along knife bar Length direction has a cricoid limited block 204 down, in the length and cavity 102 of 204 lower face of limited block to 2 upper end of knife bar Lower end distance between the surface cooperation.

Also referring to Fig. 2 and Fig. 3, described just changing hands presses button 30 and reversion hand presses 31 shape of button as semicolumn Body.This, which is just being changed hands, presses button 30 and reversion hand presses that 31 length ratio 106 groove depths of button slot of button are slightly longer, and two semicolumn bodily forms are just Change hands press button 30 and reversion hand press button 31 form cylindrical hand press button 3, which presses 3 diameter of button and opening 1061 Interior diameter matches, and 312 diameter of button bottom is matched with the interior diameter of button slot 106.

Also referring to Fig. 3 and Fig. 5, knife bar locking device 4 is covered by the first guide rod 401, the second guide rod 402, locking 403 compositions.402 diameter of first guide rod 401 and the second guide rod, length all same, and it is fixed on slot 1, slot two 1022, in slot 3 1023.The locking set 403 be equipped with hole 1 and hole 2 4032, hole 1 as 2 4032 size of hole, 402 diametric fit of its interior diameter and the first guide rod 401 and the second guide rod offers and protrusion among locking set 403 203 matched sets of holes 4033.

Also referring to Fig. 3, Fig. 4 and Fig. 5, change gear group 5 is by bevel pinion 501, bevel gear wheel 502, spur gear 503, gear shaft 504, the first spur rack 505, the second spur rack 506 composition.The bevel pinion 501 is mounted on short axle 202, Bevel gear wheel 502 and spur gear 503 are mounted on 504 specific position of gear shaft, and the installation of gear shaft 504 is matched with axocoel 105. The wherein position of bevel gear wheel 502 is just in gear cavity 104, and bevel gear wheel 502 is meshed with bevel pinion 501, and just The position of gear 503 is just in rach slot 103.First spur rack 505 and the second spur rack 506 are identical, and total length is equal to Hand press button 3 and locking set 403 be in the top position when hand press 3 lower face of button to locking set 403 upper surface distances, The upper end of first spur rack 505 and the second spur rack 506 is with teeth, and lower end is anodontia, and the length that lower end is anodontia is equal to be covered in locking 403 be in the top when locking set 403 upper surfaces to spur gear 503 plus 203 axial length of protrusion distance it is slightly longer, guarantee First 403 disengaging protrusions 203 of locking set make knife bar 2 unlock state under the first spur rack 505 or the second spur rack 506 top Under the premise of, the tooth on rack could drive change gear group 5.First spur rack 505 and 506 flank of tooth of the second spur rack are opposite, The cooperation of rack side is installed on rach slot 103, the upper end of the first spur rack 505 and the second spur rack 506 respectively with just change hands pressure Button 30 and reversion hand press button 31 and are connected and fixed.

Also referring to Fig. 3, Fig. 4 and Fig. 5, elastic component 6 is by the first elastic component 601, the second elastic component 602, third elasticity Part 603 forms.First elastic component 601, the second elastic component 602, third elastic component 603 are spring in the present embodiment. First elastic component 601 and the second elastic component 602 are identical, the first elastic component 601 and 602 upper end of the second elastic component respectively with just change hands It presses button 30 and reversion hand presses button 31 and is connected and fixed, lower end is held in 106 lower face of button slot.Third elastic component 603 is arranged In on knife bar 2,603 upper end of third elastic component is held in 403 lower faces of locking set, and 603 lower end of third elastic component is held in cavity 102 lower faces.

Referring to Fig. 3, in addition, for avoid cannot be to 1 top of screw driver handle when equally being used with normal screws knife（Hand Press 3 upper surface of button）The hand for applying pressure and may result in gripping screwdriver is slided to pressure direction, this screw driver handle 1 Outer surface lower end is equipped with the anti-slip part 107 of side wall outwardly convex at one to prevent sliding stop.

Referring to Fig. 3, in addition, to distinguish two buttons（It is just changing hands to press button 30 and invert hand and is pressing button 31）Just changing hands It presses button upper surface 301 and reversion hand presses button upper surface 311 and done roughness different disposal, convenient for that need not use at work Eyes are distinguished.

Referring to Fig. 3, in addition, easy to assembly to produce, the handle 1 is divided into the first semi-handle 10 and the second semi-handle 11 compositions.

Also referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, when using screwdriver in two kinds of situation, when without pressing hand When pressing button 3, due to the effect of elastic component 603, the locking set 403 of screwdriver rod locking device 4 is in the top and protrusion 203 cooperations, lock screwdriver rod 2, can be used as normal screws knife；Button is pressed when pressing two hands（It just changes hands and presses button 30 press button 31 with reversion hand）In one when, just changing hands and pressing button 30 and reversion hand presses button 31 and drives the first straight-tooth respectively The movement of item 505 and the second spur rack 506, rack first push the locking set 403 of knife bar locking device 4 to be detached from protrusion down 203 make knife bar 2 unlock state, and then rack just engaged with spur gear 503 drive the movement of change gear group 5 to The quick rotation of knife bar 2, two of which hand is driven to press button（It is just changing hands to press button 30 and invert hand and is pressing button 31）It controls respectively The rotation clockwise and anticlockwise of knife bar 2；Since the effect of elastic component 6 makes button together with rack after unclamping hand and pressing button（Just It changes hands to press button 30 and the first spur rack 505 or invert hand and presses button 31 and the second spur rack 506）Rebound the top and screw The locking set 403 of knife bar locking device 4 returns to the protrusion 203 with knife bar 2 topmost and coordinates, and knife bar 2 is locked.

Above-described is only preferred embodiments of the present invention.It should be pointed out that for the ordinary skill of this field For personnel, without departing from the principle of this utility model, several variations and modifications can also be made, these also should be regarded as Belong to the scope of protection of the utility model.

Claims (9)

1. hand exempts from screwing screwdriver, including handle（1）And knife bar（2）, it is characterised in that：Further include that hand presses button（3）, knife bar Locking device（4）, change gear group（5）, elastic component（6）, the change gear group（5）, knife bar locking device（4）And elasticity Part（6）In handle（1）It is interior；The hand presses button（3）Button is pressed including just changing hands（30）Button is pressed with reversion hand（31）, described Change gear group（5）Connection hand in transmission beginning presses button（3）, the change gear group（5）Driven end connects knife bar （2）, described just changing hands press button（30）Button is pressed with reversion hand（31）By driving change gear group（5）Movement control respectively Make knife bar（2）Rotation clockwise and anticlockwise, the knife bar locking device（4）Button is not being pressed by starting（3）Shi Neng Knife bar（2）Locked, described elastic component（6）It acts on hand and presses button（3）, hand is made to press button（3）Playback.

2. hand according to claim 1 exempts from screwing screwdriver, it is characterised in that：The knife bar（2）Lower end end end is set There is cutter head（201）, the knife bar（2）Upper end end end is equipped with a bit of short axle for installing fixed gear（202）, knife bar （2）Upper end is additionally provided with the protrusion of side wall outwardly convex formation（203）.

3. hand according to claim 1 or 2 exempts from screwing screwdriver, it is characterised in that：The rod lock device（4）By First guide rod（401）, the second guide rod（402）, locking set（403）Composition, the locking set（403）Equipped with hole one （4031）With hole two（4032）, the hole one（4031）With hole two（4032）Respectively with first guide rod（401）With Second guide rod（402）Cooperation, the locking set（403）Centre offers and protrusion（203）Matched sets of holes （4033）.

4. hand according to claim 3 exempts from screwing screwdriver, it is characterised in that：The change gear group（5）By small Bevel gear（501）, bevel gear wheel（502）, spur gear（503）, gear shaft（504）, the first spur rack（505）, the second spur rack （506）Composition, the bevel pinion（501）It is mounted on short axle（202）, bevel gear wheel（502）And spur gear（503）Peace Dress is fixed on gear shaft（504）, the bevel gear wheel（502）With bevel pinion（501）It is meshed, first spur rack （505）With the second spur rack（506）The first identical, described spur rack（505）With the second spur rack（506）Upper end it is with teeth, Lower end is anodontia, and the length that lower end is anodontia is equal to be covered in locking（403）Set is locked when in the top（403）Upper surface is to spur gear （503）In addition protrusion（203）The distance of axial length is slightly longer, the first spur rack（505）With the second spur rack（506）Upper end Button is pressed with just changing hands respectively（30）Button is pressed with reversion hand（31）Connection.

5. hand according to claim 3 exempts from screwing screwdriver, it is characterised in that：The elastic component（6）By the first bullet Property part（601）, the second elastic component（602）, third elastic component（603）Composition, first elastic component（601）With the second elasticity Part（602）Upper end presses button with just changing hands respectively（30）Button is pressed with reversion hand（31）It is connected and fixed, the third elastic component （603）It is placed on knife bar（2）On, the third elastic component（603）Upper end is held in locking set（403）Lower face.

6. hand according to claim 1 exempts from screwing screwdriver, it is characterised in that：The rotating forward button（30）And reversion Hand presses button（31）The different processing of roughness is done respectively in upper surface.

7. hand according to claim 1 exempts from screwing screwdriver, it is characterised in that：The handle（1）Outer surface lower end Anti-slip part equipped with side wall outwardly convex at one（107）.

8. hand according to claim 1 exempts from screwing screwdriver, it is characterised in that：The knife bar（2）Cutter head（201） For changeable type cutter head（201）.

9. hand according to claim 1 exempts from screwing screwdriver, it is characterised in that：The handle（1）It is divided into the first half Handle（10）With the second semi-handle（11）Composition.