CN204748451U

CN204748451U - General screwdriver

Info

Publication number: CN204748451U
Application number: CN201520517525.2U
Authority: CN
Inventors: 魏逸安
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2015-11-11
Anticipated expiration: 2025-07-17

Abstract

General screwdriver is including a handle of a knife, a cutter arbor and a tool bit, its characterized in that: the upper end of cutter arbor links to each other with the handle of a knife is fixed, the lower extreme of cutter arbor is twisted has a tool bit, there is a little arbor at the center of tool bit, the lower end of little arbor is little tool bit, there is a knife axle spring under the knife crown of roll ring upside anchor ring of the epaxial end of knife and the cutter arbor of cutter arbor between the branch lower end face, the peripheral ring cover of little arbor has a well broach shell section of thick bamboo, the disc has a plurality of interior foil grooves of well broach shell section of thick bamboos in the well broach shell section of thick bamboo, knife off -axial disc has a plurality of knife axle foil axles, there is a well broach shell section of thick bamboo spring under well broach shell section of thick bamboo outer convex ring's last anchor ring and the cutter arbor between the path platform, broadsword sleeve of suit on the telescopic outer disc of well sword, there is the interior foil groove of a plurality of broadsword sleeves in the broadsword sleeve on the disc, there are a plurality of well broach shell section of thick bamboo foil axles on the telescopic outer disc of well sword, the telescopic lower extreme of well sword is well tool bit, the telescopic lower extreme of broadsword is big tool bit.

Description

Utility screwdriver

Technical field

The present invention relates to utility screwdriver, be applicable to all screwdrivers, comprise Phillips screwdriver and straight screwdriver, belong to instrument science and technology field.

Background technology

Present screwdriver on the market has two types, a kind of is the screwdriver of fixing cutter head, another kind is the screwdriver of interchangeable cutter head, the screwdriver one of fixing cutter head is a kind of specification screwdriver, can not screw the specification screw of different size, the screwdriver of interchangeable cutter head, by changing different driver bit, can adapt to the specification screw screwing all size, but this movable cutter head needs to be placed in a special kit to be preserved, trouble and easily losing; The present invention strives to be fixedly mounted on by the cutter head of different size same as on screwdriver to upper art defect, carries and uses more convenient.

Summary of the invention

The object of this invention is to provide a kind of cutter head by different size is fixedly mounted on same as the utility screwdriver on screwdriver.

Utility screwdriver, comprises a hilt, a knife bar and a cutter head; It is characterized in that:

1, upper end and the hilt of knife bar are fixedly linked, the lower end of knife bar is screwed with a cutter head, there is a little cutter shaft at the center of cutter head, the lower end of little cutter shaft is small bit tool, there is a pocket knife crown of roll ring upper end of little cutter shaft, pocket knife crown of roll ring and little cutter shaft concentric, but the external diameter of pocket knife crown of roll ring 1mm ~ 5mm larger than the external diameter of little cutter shaft, the upside of pocket knife crown of roll ring is little cutter shaft upper rack posts, little cutter shaft upper rack posts and little cutter shaft concentric, on pocket knife crown of roll ring side ring surface and knife bar knife bar lower fulcrum bar lower end women's head-ornaments between have a little cutter shaft spring, between the lower end women's head-ornaments of the upper end women's head-ornaments of little cutter shaft upper rack posts and the knife bar lower fulcrum bar of knife bar, distance is 2D, the periphery ring set of little cutter shaft has middle broach shell cylinder, middle broach shell cylinder inner headed face has foil groove in multiple middle broach shell cylinder, little cutter shaft periphery has multiple little cutter shaft foil axle, in middle broach shell cylinder, foil groove and the little cutter shaft foil axle phase that matches " engages ", little cutter shaft can be moved up and down at middle broach shell cylinder, the upper end of middle broach shell cylinder is fixedly connected with drum on middle broach shell cylinder, on middle broach shell cylinder and middle broach shell cylinder the inner side of drum junction have one annular in round platform in broach shell cylinder top, under the spring-force driven dual of little cutter shaft spring, the downside of pocket knife crown of roll ring is affixed with round platform in middle broach shell cylinder top lean on mutually, on middle broach shell cylinder drum periphery on have the outer bulge loop of a middle broach shell cylinder, drum and little cutter shaft concentric on the outer bulge loop of middle broach shell cylinder and middle broach shell cylinder, but the large 1mm ~ 5mm of external diameter of drum on broach shell cylinder in the external diameter ratio of the outer bulge loop of middle broach shell cylinder, on middle broach shell cylinder, under the upper end women's head-ornaments of drum and knife bar, the distance of path platform is D, outside the knife bar lower fulcrum bar of the junction of knife bar lower fulcrum bar and knife bar, surrounding anchor ring is path platform under knife bar, a middle cutter sleeve spring is had between path platform under the upper anchor ring of the outer bulge loop of middle broach shell cylinder and knife bar, on middle broach shell cylinder, the inner headed face of drum upper end is sleeved on the periphery of knife bar lower fulcrum bar lower end, and the inner headed face of drum upper end on middle broach shell cylinder freely can be moved up and down on the periphery of knife bar lower fulcrum bar lower end, the periphery of middle broach shell cylinder is set with a machete sleeve, machete sleeve inner headed face there is foil groove in multiple machete sleeve, the periphery of middle broach shell cylinder there is multiple middle broach shell cylinder foil axle, in machete sleeve, foil groove and the middle broach shell cylinder foil axle phase that matches " engages ", broach shell cylinder can be moved up and down on machete sleeve inner headed face, the upper end of machete sleeve is fixedly connected with drum on machete sleeve, on machete sleeve and machete sleeve, the inner side of drum junction has an annulus to be round platform in machete sleeve top, the downside of the outer bulge loop of middle broach shell cylinder is affixed with round platform in machete sleeve top to be leaned on mutually, on machete sleeve, the top medial surface of drum has drum internal thread on machete sleeve, large footpath platform under a knife bar is had on the upside of path platform under the knife bar of knife bar, knife bar segment diameters 3mm ~ 10mm less of knife bar diameter under knife bar under large footpath platform and knife bar between path platform, and the knife bar section lateral surface under knife bar under large footpath platform and knife bar between path platform has knife bar external screw thread, the phase that matches knife bar external screw thread and drum internal thread on machete sleeve " engages ", the lower end of little cutter shaft is small bit tool, small bit tool is Philip's head screw cutter head, the lower end of middle broach shell cylinder is middle cutter head, middle cutter head is Philip's head screw cutter head, the lower end of machete sleeve is large cutter head, large cutter head is Philip's head screw cutter head, the cross centre line of the cross centre line of small bit tool Philip's head screw cutter head and the cross centre line of middle cutter head Philip's head screw cutter head and large cutter head Phillips screwdriver head is all on same right-angled intersection face, under the small bit tool of small bit tool, knife face and pocket knife axis in axis wire clamp angle are α, under the middle cutter head of middle cutter head, knife face and pocket knife axis in axis wire clamp angle are β, under the large cutter head of large cutter head, knife face and pocket knife axis in axis wire clamp angle are γ, α=β=γ, a half of the spacing 2D of the upper surface of little cutter shaft upper rack posts and the lower surface of knife bar lower fulcrum bar is moved upwards up to after making small bit tool overcome the acting force of the spring of little cutter shaft spring, under small bit tool, under knife face and middle cutter head, knife face is at grade, middle cutter head is moved upwards up to drum on middle broach shell cylinder top, upper surface after overcoming the acting force of the spring of middle cutter sleeve spring is attached to path table top under knife bar, and small bit tool is moved upwards up to little cutter shaft upper rack posts upper surface after overcoming the acting force of the spring of little cutter shaft spring is when abutting in the lower surface of knife bar lower fulcrum bar, under small bit tool, under knife face and middle cutter head, under knife face and large cutter head, knife face is all at grade, when small bit tool is straight screwdriver head, middle cutter head and large cutter head are also all straight screwdriver head, also the cutter head of more specifications can be arranged on same as on cutter head.

2, in use, if screw small screw, then small bit tool card is pressed on the Philip's head screw mouth of small screw termination, screw and screw is screwed into or back-outs, when screwing larger screw, small bit tool card need be pressed on the Philip's head screw mouth of small screw termination, and hilt is pushed downwards the acting force of the spring that makes small bit tool overcome little cutter shaft spring to knife face under knife face under small bit tool and middle cutter head at grade, and then screw is screwed into or back-outs by driving screws nail, when needing to screw again large screw, small bit tool card need be pressed on the Philip's head screw mouth of small screw termination, and hilt is pushed downwards make small bit tool overcome the acting force of the spring of little cutter shaft spring and middle cutter head overcomes the acting force of the spring of middle cutter sleeve spring to knife face under small bit tool, knife face under middle cutter head, under large cutter head, knife face all at grade, and then screw is screwed into or back-outs by driving screws nail.

The present invention compared with prior art has the following advantages:

1, the present invention integrates many specifications cutter head, need not adjust, do not change during use, easy to use, easy to carry.

2, the present invention can not resemble and change the screwdriver of cutter head and there will be and lose cutter head situation.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of the embodiment of the present invention;

Fig. 2 is P enlarged diagram embodiment illustrated in fig. 1;

Fig. 3 is middle A-A generalized section embodiment illustrated in fig. 1;

Fig. 4 is middle B-B generalized section embodiment illustrated in fig. 1;

Fig. 5 is middle C-C generalized section embodiment illustrated in fig. 1;

Fig. 6 is Q enlarged diagram embodiment illustrated in fig. 1;

Fig. 7 is R enlarged diagram embodiment illustrated in fig. 4.

In Fig. 1-7: 1, small bit tool 2, middle cutter head 3, large cutter head 4, little cutter shaft 5, middle broach shell cylinder 6, pocket knife crown of roll ring 7, machete sleeve 8, little cutter shaft spring 9, the outer bulge loop 10 of middle broach shell cylinder, little cutter shaft upper rack posts 11, knife bar lower fulcrum bar 12, drum 13 on middle broach shell cylinder, middle cutter sleeve spring 14, drum 15 on machete sleeve, path platform 16 under knife bar, large footpath platform 17 under knife bar, knife bar 18, knife face and pocket knife axis in axis wire clamp angle 19 under large cutter head, knife face and pocket knife axis in axis wire clamp angle 20 under middle cutter head, knife face and pocket knife axis in axis wire clamp angle 21 under small bit tool, knife face 22 under small bit tool, knife face 23 under middle cutter head, knife face 24 under large cutter head, middle broach shell cylinder foil axle 25, little cutter shaft foil axle 26, drum internal thread 27 on machete sleeve, knife bar external screw thread 28, foil groove 29 in middle broach shell cylinder, foil groove in machete sleeve.

Detailed description of the invention

In the embodiment shown in Fig. 1-7, utility screwdriver, comprises a hilt, a knife bar 17 and a cutter head, it is characterized in that: upper end and the hilt of knife bar 17 are fixedly linked, the lower end of knife bar 17 is screwed with a cutter head, there is a little cutter shaft 4 at the center of cutter head, the lower end of little cutter shaft 4 is small bit tool 1, there is a pocket knife crown of roll ring 6 upper end of little cutter shaft 4, pocket knife crown of roll ring 6 and little cutter shaft 4 concentric, but the external diameter of pocket knife crown of roll ring 6 1mm ~ 5mm larger than the external diameter of little cutter shaft 4, the upside of pocket knife crown of roll ring 6 is little cutter shaft upper rack posts 10, little cutter shaft upper rack posts 10 and little cutter shaft 4 concentric, on pocket knife crown of roll ring 6 side ring surface and knife bar 17 knife bar lower fulcrum bar 11 lower end women's head-ornaments between have a little cutter shaft spring 8, between the lower end women's head-ornaments of the upper end women's head-ornaments of little cutter shaft upper rack posts 10 and the knife bar lower fulcrum bar 11 of knife bar 17, distance is 2D, the periphery ring set of little cutter shaft 4 has middle broach shell cylinder 5, middle broach shell cylinder 5 inner headed face has foil groove 28 in multiple middle broach shell cylinder, little cutter shaft 4 periphery has multiple little cutter shaft foil axle 25, in middle broach shell cylinder, foil groove 28 and little cutter shaft foil axle 25 phase that matches " engages ", little cutter shaft 4 can be moved up and down at middle broach shell cylinder 5, the upper end of middle broach shell cylinder 5 is fixedly connected with drum 12 on middle broach shell cylinder, on middle broach shell cylinder 5 with middle broach shell cylinder the inner side of drum 12 junction have one annular in round platform in broach shell cylinder top, under the spring-force driven dual of little cutter shaft spring 8, the downside of pocket knife crown of roll ring 6 is affixed with round platform in middle broach shell cylinder top lean on mutually, on middle broach shell cylinder drum 12 periphery on have the outer bulge loop 9 of a middle broach shell cylinder, the outer bulge loop 9 of middle broach shell cylinder and drum 12 and little cutter shaft 4 concentric on middle broach shell cylinder, but the large 1mm ~ 5mm of external diameter of drum 12 on broach shell cylinder in the external diameter ratio of the outer bulge loop 9 of middle broach shell cylinder, on middle broach shell cylinder, under the upper end women's head-ornaments of drum 12 and knife bar, the distance of path platform 15 is D, outside the knife bar lower fulcrum bar 11 of the junction of knife bar lower fulcrum bar 11 and knife bar 17, surrounding anchor ring is path platform 15 under knife bar, a middle cutter sleeve spring 13 is had between path platform 15 under the upper anchor ring of the outer bulge loop 9 of middle broach shell cylinder and knife bar, on middle broach shell cylinder, the inner headed face of drum 12 upper end is sleeved on the periphery of knife bar lower fulcrum bar 11 lower end, and the inner headed face of drum 12 upper end on middle broach shell cylinder freely can be moved up and down on the periphery of knife bar lower fulcrum bar 11 lower end, the periphery of middle broach shell cylinder 5 is set with a machete sleeve 7, machete sleeve 7 inner headed face there is foil groove 29 in multiple machete sleeve, the periphery of middle broach shell cylinder 5 there is multiple middle broach shell cylinder foil axle 24, in machete sleeve, foil groove 29 and middle broach shell cylinder foil axle 24 phase that matches " engages ", broach shell cylinder 5 can be moved up and down on machete sleeve 7 inner headed face, the upper end of machete sleeve 7 is fixedly connected with drum 14 on machete sleeve, machete sleeve 7 has an annulus to be round platform in machete sleeve top with the inner side of drum 14 junction on machete sleeve, the downside of the outer bulge loop 9 of middle broach shell cylinder is affixed with round platform in machete sleeve top to be leaned on mutually, on machete sleeve, the top medial surface of drum 14 has drum internal thread 26 on machete sleeve, large footpath platform 16 under a knife bar is had on the upside of path platform 15 under the knife bar of knife bar 17, knife bar 17 segment diameters 3mm ~ 10mm less of knife bar 17 diameter under knife bar under large footpath platform 16 and knife bar between path platform 15, and the knife bar 17 section lateral surface under knife bar under large footpath platform 16 and knife bar between path platform 15 has knife bar external screw thread 27, the phase that matches knife bar external screw thread 27 and drum internal thread 26 on machete sleeve " engages ", the lower end of little cutter shaft 4 is small bit tool 1, small bit tool 1 is Philip's head screw cutter head, the lower end of middle broach shell cylinder 5 is middle cutter head 7, middle cutter head 7 is Philip's head screw cutter head, the lower end of machete sleeve 7 is large cutter head 3, large cutter head 3 is Philip's head screw cutter head, the cross centre line of the cross centre line of small bit tool 1 Philip's head screw cutter head and the cross centre line of middle cutter head 7 Philip's head screw cutter head and large cutter head 3 Philip's head screw cutter head is all on same right-angled intersection face, under the small bit tool of small bit tool 1, knife face and pocket knife axis in axis wire clamp angle 20 are α, under the middle cutter head of middle cutter head 7, knife face and pocket knife axis in axis wire clamp angle 19 are β, under the large cutter head of large cutter head 3, knife face and pocket knife axis in axis wire clamp angle 18 are γ, α=β=γ, a half of the spacing 2D of the upper surface of little cutter shaft upper rack posts 10 and the lower surface of knife bar lower fulcrum bar 11 is moved upwards up to after making small bit tool 1 overcome the acting force of the spring of little cutter shaft spring 8, under small bit tool, knife face 21 and knife face 22 under middle cutter head are at grade, middle cutter head 2 is moved upwards up to drum 12 on middle broach shell cylinder top, upper surface after overcoming the acting force of the spring of middle cutter sleeve spring 13 is attached to path platform 15 under knife bar, and small bit tool 1 is moved upwards up to little cutter shaft upper rack posts 10 upper surface after overcoming the acting force of the spring of little cutter shaft spring 8 is when abutting in the lower surface of knife bar lower fulcrum bar 11, under small bit tool, under knife face 21 and middle cutter head, knife face 22 and knife face 23 under large cutter head be all at grade, when small bit tool 1 is straight screwdriver head, middle cutter head 2 and large cutter head 3 are also all straight screwdriver head, also the cutter head of more specifications can be arranged on same as on cutter head.

In use, if screw small screw, then small bit tool 1 card is pressed on the Philip's head screw mouth of small screw termination, screw and screw is screwed into or back-outs, when screwing larger screw, need small bit tool 1 card be pressed on the Philip's head screw mouth of small screw termination, and hilt is pushed downwards the acting force of the spring that makes small bit tool 1 overcome little cutter shaft spring 8 to knife face under small bit tool 21 and knife face 22 under middle cutter head at grade, and then screw is screwed into or back-outs by driving screws nail, when needing to screw again large screw, need small bit tool 1 card be pressed on the Philip's head screw mouth of small screw termination, and hilt is pushed downwards make small bit tool 1 overcome the acting force of the spring of little cutter shaft spring 8 and middle cutter head 2 overcomes the acting force of the spring of middle cutter sleeve spring 13 to knife face under small bit tool 21, knife face 22 under middle cutter head, under large cutter head, knife face 23 all at grade, and then screw is screwed into or back-outs by driving screws nail.

Claims

1. utility screwdriver, comprises a hilt, a knife bar (17) and a cutter head, it is characterized in that: upper end and the hilt of knife bar (17) are fixedly linked, the lower end of knife bar (17) is screwed with a cutter head, there is a little cutter shaft (4) at the center of cutter head, the lower end of little cutter shaft (4) is small bit tool (1), there is a pocket knife crown of roll ring (6) upper end of little cutter shaft (4), pocket knife crown of roll ring (6) and little cutter shaft (4) concentric, but the external diameter of pocket knife crown of roll ring (6) 1mm ~ 5mm larger than the external diameter of little cutter shaft (4), the upside of pocket knife crown of roll ring (6) is little cutter shaft upper rack posts (10), little cutter shaft upper rack posts (10) and little cutter shaft (4) concentric, pocket knife crown of roll ring (6) is upper a little cutter shaft spring (8) between side ring surface and knife bar lower fulcrum bar (11) the lower end women's head-ornaments of knife bar (17), between the lower end women's head-ornaments of the upper end women's head-ornaments of little cutter shaft upper rack posts (10) and the knife bar lower fulcrum bar (11) of knife bar (17), distance is 2D, the periphery ring set of little cutter shaft (4) has middle broach shell cylinder (5), middle broach shell cylinder (5) inner headed face has foil groove (28) in multiple middle broach shell cylinder, little cutter shaft (4) periphery has multiple little cutter shaft foil axle (25), in middle broach shell cylinder, foil groove (28) and little cutter shaft foil axle (25) phase that matches " engages ", the upper end of middle broach shell cylinder (5) is fixedly connected with drum (12) on middle broach shell cylinder, on middle broach shell cylinder (5) and middle broach shell cylinder, there is round platform in an annular middle broach shell cylinder top inner side of drum (12) junction, on middle broach shell cylinder drum (12) periphery on have the outer bulge loop (9) of a middle broach shell cylinder, the outer bulge loop (9) of middle broach shell cylinder and drum (12) and little cutter shaft (4) concentric on middle broach shell cylinder, but the large 1mm ~ 5mm of external diameter of drum (12) on broach shell cylinder in the external diameter ratio of the outer bulge loop (9) of middle broach shell cylinder, on middle broach shell cylinder, under the upper end women's head-ornaments of drum (12) and knife bar, the distance of path platform (15) is D, knife bar lower fulcrum bar (11) is path platform (15) under knife bar with knife bar lower fulcrum bar (11) the outside surrounding anchor ring of the junction of knife bar (17), a middle cutter sleeve spring (13) is had between path platform (15) under the upper anchor ring of the outer bulge loop (9) of middle broach shell cylinder and knife bar, on middle broach shell cylinder, the inner headed face of drum (12) upper end is sleeved on the periphery of knife bar lower fulcrum bar (11) lower end, the periphery of middle broach shell cylinder (5) is set with a machete sleeve (7), machete sleeve (7) inner headed face there is foil groove (29) in multiple machete sleeve, the periphery of middle broach shell cylinder (5) there is multiple middle broach shell cylinder foil axle (24), in machete sleeve, foil groove (29) and middle broach shell cylinder foil axle (24) phase that matches " engages ", the upper end of machete sleeve (7) is fixedly connected with drum (14) on machete sleeve, machete sleeve (7) has an annulus to be round platform in machete sleeve top with the inner side of drum (14) junction on machete sleeve, the downside of the outer bulge loop (9) of middle broach shell cylinder is affixed with round platform in machete sleeve top to be leaned on mutually, on machete sleeve, the top medial surface of drum (14) has drum internal thread (26) on machete sleeve, under the knife bar of knife bar (17), there is large footpath platform (16) under a knife bar path platform (15) upside, knife bar (17) segment diameters 3mm ~ 10mm less of knife bar (17) diameter under knife bar under large footpath platform (16) and knife bar between path platform (15), and knife bar (17) the section lateral surface under knife bar under large footpath platform (16) and knife bar between path platform (15) has knife bar external screw thread (27), the phase that matches knife bar external screw thread (27) and drum internal thread (26) on machete sleeve " engages ", the lower end of little cutter shaft (4) is small bit tool (1), small bit tool (1) is Philip's head screw cutter head, the lower end of middle broach shell cylinder (5) is middle cutter head (7), middle cutter head (7) is Philip's head screw cutter head, the lower end of machete sleeve (7) is large cutter head (3), large cutter head (3) is Philip's head screw cutter head, the cross centre line of the cross centre line of small bit tool (1) Philip's head screw cutter head and the cross centre line of middle cutter head (7) Philip's head screw cutter head and large cutter head (3) Philip's head screw cutter head is all on same right-angled intersection face, under the small bit tool of small bit tool (1), knife face and pocket knife axis in axis wire clamp angle (20) are α, under the middle cutter head of middle cutter head (7), knife face and pocket knife axis in axis wire clamp angle (19) are β, under the large cutter head of large cutter head (3), knife face and pocket knife axis in axis wire clamp angle (18) are γ, α=β=γ, when small bit tool (1) is for straight screwdriver head, middle cutter head (2) and large cutter head (3) are also all straight screwdriver head, also the cutter head of more specifications can be arranged on same as on cutter head.