CN2224104Y

CN2224104Y - Improved drawing pin

Info

Publication number: CN2224104Y
Application number: CN 95211268
Authority: CN
Inventors: 陈明掌
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-26
Filing date: 1995-05-26
Publication date: 1996-04-10
Anticipated expiration: 2005-05-26

Abstract

The utility model relates to a drawing pin, which solves the problem of the exposure of a pin nip. A main seat is a hollow cylinder body, and the inner and the outer sides of a lower port are respectively provided with a containing edge and an enlarged flange. The center of a protective cylinder is provided with the cylinder body having through holed, and the outer edge of the upper end of the protective cylinder is provided with an enlarged supporting edge and inserted in the cylinder body of the main seat and extended out of the lower end of the cylinder body. The enlarged supporting edge is clamped with the containing edge at the inner side of the lower end of the cylinder body of the main seat. A spring as a winding pressure spring is inserted in the main seat and supported at the upper part of the protective cylinder, and the protective cylinder is extended out of the main seat. The pin nip is on the same level with the lower end of the protective cylinder and combined with the upper end of the cylinder body of the main seat into a whole. The utility model is used for nailing objects.

Description

Through improved drawing pin

The utility model relates to drawing pin, refer to especially a kind of easy to use, the improvement drawing pin that can not stab.

Existing drawing pin is as shown in Figure 7: in conjunction with constituting, ailhead 21 constitutes and is I font post for set up separately bead 211 and big bead 212 by an axostylus axostyle 210 upper and lower ends drawing pin 2 by ailhead 21, nail 22; And the nail body of nail 22 to be an end be provided with sharpened tip 221, ailhead 21 is made for plastic cement, can be directly push to hammer into wall or iron hammer and do and squeeze into wall with thumb, its tear open pull out than the umbrella drawing pin easy, but and double as hang the thing nail.But nail 22 outsides do not have cover, needle point 221 people of easily stabbing, and inconvenience is carried.

The purpose of this utility model is because there is above-mentioned unsafe factor in existing drawing pin and is improved, and provides a kind of easy to use and safer through improved drawing pin.

The purpose of this utility model is achieved in that through improved drawing pin, comprises the seat of honour, casing, spring, contact pin and needle stand, it is characterized in that: the seat of honour is a hollow cylinder, and peristoma medial and lateral, lower end are set up one separately and contained an edge and an expansion bead; Casing is the cylindrical shell that central authorities have through hole, establishes one in the upper end outer rim and enlarges and to hold edge, is plugged in the cylindrical shell of the seat of honour and stretches out the cylindrical shell lower end, and its expansion is held the edge card and held containing on the edge in the inboard of seat of honour cylindrical shell lower end; Spring be one dredge around pressure spring, plug-in mounting go in the main base frame and roof pressure above casing, casing stretches out the outside, seat of honour below; Contact pin is the guiding principle pin that an end has needle point; Needle stand is the T shape pedestal of the system of moulding, and is integrally molded and be plugged in the seat of honour cylindrical shell and contact pin is inserted and penetrated in the casing with the contact pin annular knurl, is combined into one on its needle point and the needle stand and the seat of honour cylindrical shell concordant with the casing lower end.

Above-mentioned design, the needle point of contact pin are hidden in the casing when not using, the user of can not stabbing, and when pressure hammered into a thing by needle stand, its casing can contract and be hidden in the seat of honour cylindrical shell, does not influence normal use.

Be described further again below by drawings and Examples.

Fig. 1 the utility model longitudinal section schematic diagram;

Fig. 2 the utility model user mode schematic diagram;

Fig. 3 the utility model perspective exploded view;

Another embodiment longitudinal section schematic diagram of Fig. 4 the utility model;

Another embodiment seat of honour of Fig. 5 the utility model, casing schematic perspective view;

The another embodiment of Fig. 6 the utility model longitudinal section schematic diagram;

Fig. 7 has the drawing pin schematic perspective view now;

As shown in Figure 1, 2, 3; The cylindrical shell 110 lower end peristomas of the seat of honour 11 of drawing pin 1 are inside and outside to be set up one separately and contains edge 111 and and enlarge bead 112; The cylindrical shell 120 that casing 12 plastic cement are molded as, be provided with a through hole 122 in central authorities, to pass contact pin 14 usefulness, hold edge 121 and establish an expansion in the upper end outer rim, to be plugged in the cylindrical shell 110, and stretching out cylindrical shell 110 lower ends, mat enlarges and holds edge 121 cards and hold and contain on the edge 111 unlikely cylindrical shell 110 outsides that drop out in inboard, cylindrical shell 110 lower end; Spring 13 plug-in mountings are gone in the cylindrical shell 110 roof pressure above casing 12, make casing 14 keep stretching out the outside, the seat of honour 11 belows; The needle point 141 of contact pin 14 is a bit of annular knurl 142 of needle body 140 surface knurlings of end in addition, with needle stand 15 horizontal fixed share; Needle stand 15 is the molded T shape pedestal 150 of a plastic cement, and to cylindrical shell 14, contact pin 14 interts in the casing 12 in being combined into one of being in of roller 142 and plug-in mounting, and needle point 141 is concordant with cylindrical shell 120 lower ends at the most; And needle stand 15 melts solid with cylindrical shell 110 upper ends or cementation is integral.During user mode, be hidden in the casing 12 as Fig. 1, needle point 141.And when using, as Fig. 2, when needle stand 15 hammered into article 3 with contact pin 14, casing 12 can contract naturally and hide the cylindrical shell 110 of the seat of honour 111, did not hinder normal use.

As Fig. 4,5, shown in 6: it is a preferred embodiment, the length of the cylindrical shell 110 ' of different the is seat of honour 11 ' is shorter, in the peristoma of lower end, the outside also is provided with and contains edge 111 and enlarge bead 112, central through hole 122 epimeres of casing 12 ' are established the posthole 123 in big footpath, for taking up the usefulness of spring 13, drawing pin 1 ' is hammering into article 3 actions as Fig. 6, when casing 12 ' is in the cylindrical shell 110 ' of the retraction seat of honour 11 ', spring 13 contracts fully and ensconces in the posthole 123 of cylindrical shell 120 ' central through hole 121 epimeres, do not stay the gap between casing 12 ' and the needle stand 15, so drawing pin 1 ' the whole contraction in length, result of use is better.

Claims

1, through improved drawing pin, comprise the seat of honour, casing, spring, contact pin and needle stand, it is characterized in that: the seat of honour is a hollow cylinder, peristoma medial and lateral, lower end are set up one separately and are contained an edge and an expansion bead; Casing is the cylindrical shell that central authorities have through hole, establishes one in the upper end outer rim and enlarges and to hold edge, is plugged in the cylindrical shell of the seat of honour and stretches out the cylindrical shell lower end, and its expansion is held the edge card and held containing on the edge in the inboard of seat of honour cylindrical shell lower end; Spring be one dredge around pressure spring, plug-in mounting go in the main base frame and roof pressure above casing, casing stretches out the outside, seat of honour side; Contact pin is the guiding principle pin that an end has needle point; Needle stand is the T shape pedestal of the system of moulding, and is integrally molded and be plugged in the seat of honour cylindrical shell and contact pin is inserted and penetrated in the casing with the contact pin annular knurl, is combined into one on its needle point and the needle stand and the seat of honour cylindrical shell concordant with the casing lower end.

2, drawing pin as claimed in claim 1 is characterized in that: the cylindrical shell of the seat of honour is short type, and in the epimere of casing central authorities through hole, establishes the posthole in the big footpath that takes up spring, and casing is right after mutually with needle stand.