CN104972434A

CN104972434A - Wood nail pulling tool

Info

Publication number: CN104972434A
Application number: CN201510368148.5A
Authority: CN
Inventors: 贾易衔; 王晶; 于林杰; 郑海滨; 徐为勇; 彭宝安
Original assignee: Qingdao Research Institute Of No712 Research Institute Csic
Current assignee: Qingdao Research Institute Of No712 Research Institute Csic; 712th Research Institute of CSIC
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2015-10-14
Anticipated expiration: 2035-06-29
Also published as: CN104972434B

Abstract

The invention discloses a wood nail pulling tool, which is mainly used to pull out wood nails in the package field or other fields. The wood nail pulling tool is mainly composed of a conical ring (1), arc knives (2), and a handle (4). A shaft pin (8) is fixed on the front end and rear end of the conical ring (1) respectively, two ends of a spring (10) are respectively fixed on the inner sides of two arc knives; the left end of the handle (4) is provided with two long-strip shaped holes (9); two shaft pins (8) are inserted into two long-strip shaped holes respectively; and two arc knives (2) are placed in the conical hole of the conical ring (1). If the tail end of the handle (4) is pressed, the front section of the handle (4) will be raised. Two long-strip shaped holes (9) can lift up two shaft pins (8) of the conical ring (1) and drive the shaft pins (8) to move upwards in a linear path so as to drive the conical ring (1) to move upwards in a linear path, and finally the iron nail is driven to move upwards in a linear path and is pulled out.

Description

Wood nail nail-fetching device

Technical field

The present invention is mainly used in packaging field and extracts Wood nail or other field and extract wood nail and use.

Background technology

china generally uses claw hammer to extract wood nail at present, need the wood around the hammering head of a nail, the head of a nail is exposed outside wood, extract nail with the goat's horn of hammer again, nail is extracted by camber line, and nail body bends, the method damage wood is larger, even by wood local damage, the bent nails extracted, can not reuse.

Summary of the invention

the invention solves the problems referred to above, it is primarily of conical ring (1), curved knife (2), handle (4) composition, the rear and front end of conical ring (1) is fixed with pivot pin (8), spring (10) two ends are fixed with the inner side of two curved knife (2) respectively, the left end of handle (4) has two strip holes (9), two pivot pins (8) of conical ring (1) are inserted in two strip holes (9) respectively, two panels curved knife (2) is placed in the bellmouth of conical ring (1), the taper that two panels curved knife (2) is formed is corresponding with the bellmouth of conical ring (1), press down the end of handle (4), the leading portion of handle (4) tilts, two strip holes (9) of handle (4) are by two pivot pins (8) of conical ring (1) upwards jack-up vertical linear motion done upwards, conical ring (1) is driven upwards to do vertical linear motion, thus drive curved knife (2) upwards to do vertical linear motion, iron nail is finally driven upwards to do vertical linear motion, extract iron nail.Need to illustrate: the position of the strip hole (9) of handle (4) is that the major axis of strip hole is rotated counterclockwise a less angle.

Accompanying drawing explanation

description of reference numerals

1-conical ring, 2-curved knife, 3-gap, 4-handle, 5-iron nail, 6-wood, the movement locus of 7-strip hole, 8-pivot pin, 9-strip hole, 10-spring.

fig. 1 is the positive facade section of curved knife of the present invention (2) when not inserting the head of a nail.

fig. 2 is the positive facade section of curved knife of the present invention (2) when having inserted the head of a nail.

fig. 3 is top view of the present invention.

positive facade section drawing when Fig. 4 is conical ring of the present invention (1), curved knife (2) inserts the head of a nail.

fig. 5 be curved knife of the present invention (2) overlook drawing.

fig. 6 be conical ring of the present invention (1) overlook drawing.

fig. 7 is the top view of handle of the present invention (4).

fig. 8 is the front elevation view of handle of the present invention (4).

fig. 9 is pivot pin of the present invention (8) stressed rear diverse location schematic diagram in strip hole (9).

Detailed description of the invention

below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

see Fig. 1, Fig. 2, the present invention is primarily of conical ring (1), curved knife (2), handle (4) composition; See Fig. 6, the two ends up and down of conical ring (1) are fixed with pivot pin (8); See Fig. 5, spring (10) two ends are fixed with the inner side of two curved knife (2) respectively; See Fig. 7, the left end of handle (4) has two strip holes (9); See Fig. 4, the bellmouth of conical ring (1) is up big and down small taper, curved knife (2) is also half up big and down small taper, two curved knife (2) can be combined into a taper, corresponding with the bellmouth of conical ring (1), spring (10) is in confined state all the time, and its effect is strutted two curved knife (2), makes the inner side being close to conical ring (1) outside it all the time.

the specific embodiment of the present invention is: the head of a nail of iron nail (5) is aimed in the hole first two curved knife (2) of the present invention formed, and make the bottom surface of conical ring (1) be close to the end face of wood (6), now the upper end of two curved knife (2) is a little more than the upper end of conical ring (1), the bore dia that two curved knife (2) are formed is slightly larger than the head of a nail diameter of iron nail (5), the upper end of two curved knife (2) is knocked with hammer, the anchor ring formed due to the upper end of two curved knife (2) amasss the floor space being less than hammer, the blade of two curved knife (2) can be knocked in the wood around the head of a nail by hammer simultaneously, see Fig. 5, after the upper end of two curved knife (2) and the upper end of conical ring (1) beat out, the gap (11) that two curved knife (2) are formed before knocking also closes up thereupon, the hole that now blade of two curved knife (2) is formed reduces, its diameter is slightly larger than the diameter of the nail body of iron nail (5), be slightly less than the head of a nail diameter of iron nail (5), therefore the clamping of the head of a nail of iron nail (5) is got up by the blade of two curved knife (2), do not encounter again the nail body of iron nail (5) simultaneously, blade can not damage, because conical ring (1) bellmouth is to the effect of contraction of two curved knife (2), two curved knife (2) can clamp the head of a nail of iron nail (5) all the time until extracted, the end of handle (4) is pressed with subordinate, the front end of handle (4) can tilt, two strip holes (9) of handle (4) are by two pivot pins (8) of conical ring (1) upwards jack-up vertical linear motion done upwards, conical ring (1) is driven upwards to do vertical linear motion, thus drive curved knife (2) upwards to do vertical linear motion, iron nail is finally driven upwards to do vertical linear motion, extract iron nail.See Fig. 9, the nose motion track of handle (4) is one section of arc, the movement locus of the strip hole (9) of handle (4) is also one section of arc, if strip hole (9) is designed to pivot pin (8) circular accordingly, then strip hole (9) will drive pivot pin (8) to do one section of movement in a curve, the nail body of iron nail (5) will be pulled out by arc line shaped, the resistance extracted can be very large, the drawback of this also current claw hammer just, in order to overcome this situation, strip hole (9) is designed to strip by the present invention, the major axis of strip hole is rotated counterclockwise a less angle simultaneously, pivot pin (8) after stressed like this will change its arcuate movement track, upwards do vertical linear motion (vertical dotted line as can be seen from Fig. 9).

Claims

1. Wood nail nail-fetching device, is characterized in that: it is primarily of conical ring (1), curved knife (2), handle (4) composition, the rear and front end of conical ring (1) is fixed with pivot pin (8), spring (10) two ends are fixed with the inner side of two curved knife (2) respectively, the left end of handle (4) has two strip holes (9), two pivot pins (8) are inserted in two strip holes (9) respectively, two panels curved knife (2) is placed in the bellmouth of conical ring (1), the taper that two panels curved knife (2) is formed is corresponding with the bellmouth of conical ring (1), press down the end of handle (4), the leading portion of handle (4) tilts, two strip holes (9) of handle (4) are by two pivot pins (8) of conical ring (1) upwards jack-up vertical linear motion done upwards, conical ring (1) is driven upwards to do vertical linear motion, thus drive curved knife (2) upwards to do vertical linear motion, iron nail is finally driven upwards to do vertical linear motion, extract iron nail.

2. Wood nail nail-fetching device according to claim 1, is characterized in that the position of the strip hole (9) of described handle (4) is that the major axis of strip hole is rotated counterclockwise a less angle.