CN2548809Y

CN2548809Y - Safety drawing pin

Info

Publication number: CN2548809Y
Application number: CN 02230332
Authority: CN
Inventors: 柯森复; 林源煌
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-03
Filing date: 2002-04-03
Publication date: 2003-05-07
Anticipated expiration: 2012-04-03

Abstract

A safe drawing pin comprises a hollow body, a moving part, a driven member and an end sealing part. A top part of the hollow body is provided with an opening, and a positioning mechanism is arranged inside the hollow body; and size of the moving part is corresponding to the opening, and the moving part can be jutted out, and a hollow bond chamber is arranged inside the moving part; and the driven member is in sleeve joint with the moving part, and a pin body is jutted out from a tube chamber which is arranged inside the driven member, which is provided for placement and sleeve joint of an elastomer, and a detent mechanism is arranged on periphery of the driven member; and bottom of the hollow body is sealed via the end sealing part, which is opened with a pin hole correspondingly to the pin body, enclosing and clamping the elastomer together with the tube chamber; and the user presses the moving part to make the driven member relatively displace so as to compress the elastomer, and the detent mechanism is in detent on the positioning mechanism of the hollow body, forming a position-differential effect, therefore the pin body penetrates the pin hole to be exposed.

Description

Safe thumb-tack

Technical field

The utility model relates to a kind of safe thumb-tack, and the driven key that especially refers to a kind of drawing pin can become a drawing pin when a body stretches out, and during retraction, then by the magnetic thing of body bottom, and has the function of absorption.

Background technology

Utilize the fixing thin shape article of drawing pin, for example paper has had suitable history, and especially fixing to placard or propaganda data has considering of its convenience and economy really.Because general drawing pin is that bottom surface discoid or cylindrical body is prominent establishes a nail body one, if collection or remove the back and reclaim improperly often drops down onto ground, so that the lighter's mistake punctures skin and bleeds the potentiality danger that weight person then has the child to eat accidentally.But can not be put off easily by a slight risk, drawing pin because of have in conjunction with firmly, be difficult for removing and cheap characteristic, so out of doors, and even bulletin item machine-operated, school unit, at present mostly still with drawing pin as holding appliance.

In addition, with the fashionable of work magnetic sheet (that is so-called blank), because its smooth surface, be not can be for the intercalation of drawing pin, so it fixes the mode such as paper as the cork seben, then be to utilize magnet that paper is adsorbed in the magnetic sheet surface, and in order to fixing article.This kind mode is no doubt easy to operate and quick, and a fly in the ointment is the fastness and the still too late drawing pin of the scope of application of its combination.

The utility model content

The purpose of this utility model is to provide a kind of safe thumb-tack, easy to use and be easy to the collection.

For achieving the above object, the safe thumb-tack that the utility model provides, it comprises:

One hollow body, an opening is established at its top, and inside is provided with a location mechanism;

One movable part, size are corresponding to opening, and be extended, and its inside is dead key chamber in;

One driven member, with the movable part socket, a nail body is stretched out in its inner hollow tube chamber, and for the ccontaining and socket of an elastomer, this driven member periphery is provided with a clip mechanism;

One end sealing will close sealing at the bottom of the body, its corresponding nail body is opened a nail hole, and with pipe chamber this elastomer of common double team; Wherein this end sealing is a permanent magnet, and is fixedly arranged on the girdle of body bottom, when the nail body does not stretch out, is a magnetic absorbing mass; Wherein this elastomer is a spring.

By pushing movable part, make the driven member relative displacement, and then compresses elastomeric, and make its clip mechanism clip, and form the potential difference effect in the detent mechanism of body, the nail body is passed by the nail hole and expose.

Wherein the detent mechanism of this body is crisscross arranged by a key flank and a keyway and forms, and this key flank is by double team one costal groove between a left and right rib tenon, and the bottom each oblique open a rib tiltedly and a tenon oblique; And the prominent sliding tenon of establishing of corresponding each costal groove of movable part bottom peripheral edge, with slippage in it, and root edge is provided with a ring-type rodent part; The laterally prominent top bevelled tenon of establishing of corresponding each keyway of the clip mechanism of driven member in addition, with can be in it slippage and mesh with rodent part; By pushing movable part, make the driven member relative displacement, and compresses elastomeric, the tenon that the top bevelled tenon is then crossed right rib tenon is oblique, and along the rodent part rotation, and then clip is in the costal groove root edge, to form the potential difference effect.

Description of drawings

For further disclosing concrete technology contents of the present utility model, at first see also accompanying drawing, wherein:

Fig. 1 is the three-dimensional exploded view of the utility model safe thumb-tack;

Fig. 2 is the profile of each parts of the utility model;

Fig. 3 shows not mode of operation for the profile of the utility model group after upright;

Fig. 4 is another profile of the utility model, shows mode of operation.

The specific embodiment

As shown in Figures 1 to 4, basically, safe thumb-tack of the present utility model is combined by a body 1, one movable part 2, one driven members, 3, one elastomers 4 and an end sealing 5.

Wherein, body 1 is a hollow housing, and for each element of chatting after ccontaining, its top is provided with an opening 11, and for stretching out of movable part 2, the girdle 12 of a level shape is then opened in the bottom, setting and locating for end sealing 5.And body 1 inwall is provided with a location mechanism 13 in addition, for the displacement of driven member 3 and the usefulness of location, as shown in the figure, this detent mechanism 13 is to be crisscross arranged with keyway 137 by some groups key flank 131 to form, each key flank 131 is made up of the costal groove 134 that left rib tenon 132, one a right rib tenon 133 and central authorities slightly are depression, and left and right rib tenon bottom is oblique separately, and for example miter angle is provided with a rib oblique 135 and a tenon oblique 136.But detent mechanism 13 of the present utility model is not as limit, and it also must vertically respectively establish a upper and lower locating hole in body 1 inwall, so that the function of potential difference location to be provided.

Movable part 2 is a hollow tube, and its external diameter is corresponding to opening 11, and is extended, and corresponding each costal groove 134 place of its bottom peripheral edge are prominent to establish one section sliding tenon 21, sliding in it, and is unlikelyly deviate from by opening 11; And middle dead key chamber 22 root edges are provided with the rodent part 23 of a ring-type.

Driven member 3 is a hollow tube body also, and is socketed in the key chamber 22, sets firmly a nail body 32 in the pipe chamber 31 of its central interior, wears with ccontaining for an elastomer 4.Corresponding each each side direction of keyway 137 positions of this driven member 3 root edges is prominent establishes a clamping structure, and for example the top bevelled tenon 33, with rodent part 23 engagements outside, and can be, and clip is in tenon oblique 136 at keyway 137 intrinsic displacements.

Elastomer 4 is a spring, passes through and is placed in the pipe chamber 31 for nail body 32, and its two ends prop up respectively between pipe chamber 31 roofs and the end sealing 5.

End sealing 5 is a permanent magnet, is fixedly arranged on girdle 12, and its central authorities establish a nail hole 51 turnover for nail body 32.

Form after the utility model group is upright as shown in Figure 3, at this moment, nail body 32 is to be accommodated in the nail hole 51 of end sealing 5, and unlikely exposing at this moment, utilizes the end sealing 5 of body 1 bottom can be adsorbed in irony sheet material, blank for example is with fixing paper.As when desiring to peg paper, only need push movable part 2, make elastomer 4 compressions, and its sliding tenon 21 is moved down along costal groove 134, and force the top bevelled tenon 33 of driven member 3 to move down along keyway 137, when it crosses the tenon oblique 136 of right rib tenon 133, and each top bevelled tenon 33 is relative rotation along rodent part portion 23, make bevelled tenon 33 clips in top in costal groove 134 root edges, follow closely body 32 this moment and promptly stretch out nail hole 51, and form drawing pin as shown in Figure 4.As when desiring to take in, then push movable part 2 once again, it is oblique 135 to make the top bevelled tenon 33 of driven member 3 cross rib, and falls in the keyway 137, and elastomer 4 stretches, and makes in the nail body 32 withdrawal bodies 1.

Via enforcement of the present utility model, make the nail body can be with the displacement of work movable part and driven member clip, and in body, form the potential difference effect, and then become a real safe thumb-tack, this measure, when not pushing movable part, the nail body promptly can not stretch out, even if not having the situation of stabbing when dropping takes place, if eaten by mistake by the child accidentally, because the nail body does not stretch out the unlikely enteron aisle that injures, can discharge naturally with the work digestive system, be a quantum jump and the innovation of drawing pin.Particularly, the magnetic thing of the utility model body bottom can be used as the usefulness of absorption, makes the utility model not only possess the nail body and fixes, and still can utilize the function of magnetic absorption, and enlarge the scope of application of the present utility model.

That the utility model disclosed is a kind of of preferred embodiment, such as Ju Bu change or modification and come from technological thought of the present utility model and be have the knack of this technology the people was easy to know by inference, all do not take off patent right category of the present utility model.

Claims

1. a safe thumb-tack is characterized in that, comprising:

One movable part, size are corresponding to opening and extended, and its inside is dead key chamber in;

One driven member, with the movable part socket, a nail body is stretched out in its inner hollow tube chamber, the ccontaining and socket with an elastomer, this driven member periphery is provided with a clip mechanism;

One will close the end sealing of sealing at the bottom of the body, its corresponding nail body is opened a nail hole, and with pipe chamber this elastomer of common double team.

2. safe thumb-tack as claimed in claim 1 is characterized in that, wherein this elastomer is a spring.

3. safe thumb-tack as claimed in claim 1 is characterized in that, wherein this end sealing is a permanent magnet, and is fixedly arranged on the girdle of body bottom, is a magnetic absorbing mass when the nail body does not stretch out.

4. safe thumb-tack as claimed in claim 1 is characterized in that, wherein the detent mechanism of this body is crisscross arranged by a key flank and a keyway and forms, and this key flank is by double team one costal groove between a left and right rib tenon, and the bottom each oblique open a rib tiltedly and a tenon oblique; And the prominent sliding tenon of establishing of corresponding each costal groove of movable part bottom peripheral edge, and root edge is provided with a ring-type rodent part; Corresponding each keyway of the clip mechanism of driven member is laterally prominent in addition establishes a top bevelled tenon, meshes with rodent part.