CN203945858U - Crayon - Google Patents

Abstract

The utility model discloses a kind of crayon, a kind of crayon, comprise penholder, described penholder one end is arranged with pen core, and described penholder card has one end of pen core to be provided with nib, nib inside is provided with latching member, described latching member is three self-lock rods, and described self-lock rod circle distribution is on written inwall, and one end that self-lock rod contacts with pen core forms clamping part, described self-lock rod middle part is provided with stage clip, the other end and written inwall butt that stage clip is connected with self-lock rod relatively.The utility model compared with prior art, can prevent from causing owing to overexerting pen core retraction penholder inside in the process of writing.

Description

Crayon

Technical field

The utility model relates to a kind of device that can prevent that pen core from bouncing back in writing process, and in particular, it relates to a kind of crayon.

Background technology

At present, the pen core of the common crayon on market and penholder only just block by interference fit, and such crayon often causes pen core to be retracted in the process of writing situation owing to overexerting is brought very large inconvenience in people's use procedure.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of crayon that can prevent pen core retraction.

For achieving the above object, the utility model provides following technical scheme: described penholder card has one end of pen core to be provided with nib, nib inside is provided with latching member, described latching member is three self-lock rods, described self-lock rod circle distribution is on written inwall, one end that self-lock rod contacts with pen core forms clamping part, and described self-lock rod middle part is provided with stage clip, the other end and written inwall butt that stage clip is connected with self-lock rod relatively.

To further improvement of the utility model be: described written inside is provided with hinged boss, it is inner that described self-lock rod is articulated with nib by hinged boss, described self-lock rod is provided with stage clip boss one, described written inside is provided with stage clip boss two, described stage clip one end connects stage clip boss one, and the other end connects stage clip boss two.

To further improvement of the utility model be: on described pen core periphery, be in axial direction provided with cone boss, cone boss is bored sharp direction cuspidated side on pen core.

To further improvement of the utility model be: described penholder is provided with projection, described nib is provided with the shrinkage pool coordinating with projection.

To further improvement of the utility model be: the clamping part of described self-lock rod is provided with the inclined plane contacting with pen core.

Be: described cone boss is provided with self-lock rod draw-in groove that described self-lock rod draw-in groove matches with self-lock rod to further improvement of the utility model.

The relative prior art of the utility model is compared to be had: the function that can play to inserting pen core in nib anti-retraction by the latching member in nib, pen core is after inserting nib, three self-lock rods are softened, after pen core insertion puts in place, because self-lock rod becomes reversed acanthoid, self-lock rod withstands pen core immediately, prevents from causing owing to overexerting pen core retraction penholder inside in the process of writing.

Brief description of the drawings

Fig. 1 is the general assembly drawing of the utility model crayon;

Fig. 2 is the sectional arrangement drawing of the utility model crayon;

Fig. 3 is A portion partial enlarged drawing in this Fig. 2;

Fig. 4 is the pen core part drawing of the utility model crayon;

Fig. 5 is the written cutaway view of the utility model crayon;

Fig. 6 is the self-lock rod part drawing of the utility model crayon.

In figure: 1, penholder; 11, projection; 2, pen core; 21, cone boss; 22, self-lock rod draw-in groove; 3, nib; 31, hinged boss; 32, self-lock rod; 321, stage clip boss one; 33, stage clip; 34, stage clip boss two; 35, shrinkage pool.

Detailed description of the invention

Referring to figs. 1 through Fig. 6, the utility model crayon embodiment is described further.

One end that penholder 1 is arranged with pen core 2 is provided with nib 3, penholder 1 inside is filled with cavernous body, described pen core 2 inserts in cavernous body, nib 3 inside are provided with latching member, latching member is three self-lock rods 32, self-lock rod 32 is reversed acanthoid and is arranged on written 3 inside, and hangnail direction is identical with the direction that pen core 2 inserts, and one end that self-lock rod 32 contacts with pen core 2 forms clamping part.Self-lock rod 32 middle parts are provided with stage clip 33, the other end and written 3 inwall butts that stage clip 33 is connected with self-lock rod 32 relatively, after pen core 2 inserts nib 3, because self-lock rod 32 is the opposite direction of reversed acanthoid and hangnail direction and pen core 2 rollbacks, therefore self-lock rod 32 props up immediately pen core 2 under the elastic force effect of stage clip 33, form self-locking, and then cause pen core 2 to retract.

Nib 3 inside are provided with hinged boss 31, self-lock rod 32 is articulated with written 3 inside by hinged boss 31, the middle part of self-lock rod 32 is provided with stage clip boss 1, nib 3 inwalls are provided with stage clip boss 2 34, stage clip 33 one end connect stage clip boss 1, the other end connects stage clip boss 2 34, and stage clip 33 can allow self-lock rod 32 to have larger scope of activities, the convenient pen core 2 of installing.

On pen core 2 peripheries, be in axial direction provided with cone boss 21, cone boss 21 is bored sharp direction cuspidated side on pen core 2, and after being in place, self-lock rod 32 props up the cone boss 21 on pen core 2, the two coordinates, and can produce better self-locking effect.

The clamping part of self-lock rod 32 is provided with the inclined plane contacting with pen core 2.The contact area that increases self-lock rod 32 and pen core 2, plays better self-locking effect.

Penholder 1 is provided with projection 11, and nib 3 is provided with and projection 11 shrinkage pools that coordinate 35.Convenient nib 3 dismountings.

The cone boss 21 of pen core 2 is provided with self-lock rod draw-in groove 22, and self-lock rod draw-in groove 22 matches with self-lock rod 32.After pen core 2 is in place, self-lock rod 32 snaps in self-lock rod draw-in groove 22, reaches better self-locking effect, also can prevent that pen core 2 from rotating simultaneously.

When self-lock rod 32 contacts with pen core 2, self-lock rod 32 is acute angle with the angle that written 3 inwalls form.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (6)

1. a crayon, comprise penholder, described penholder one end is arranged with pen core, it is characterized in that: described penholder card has one end of pen core to be provided with nib, and written inside is provided with latching member, described latching member is three self-lock rods, described self-lock rod circle distribution is on written inwall, one end that self-lock rod contacts with pen core forms clamping part, and described self-lock rod middle part is provided with stage clip, the other end and written inwall butt that stage clip is connected with self-lock rod relatively.

2. crayon according to claim 1, it is characterized in that: described written inside is provided with hinged boss, it is inner that described self-lock rod is articulated with nib by hinged boss, described self-lock rod is provided with stage clip boss one, described written inside is provided with stage clip boss two, described stage clip one end connects stage clip boss one, and the other end connects stage clip boss two.

3. crayon according to claim 1, is characterized in that: on described pen core periphery, be in axial direction provided with cone boss, cone boss is bored sharp direction cuspidated side on pen core.

4. crayon according to claim 1, is characterized in that: described penholder is provided with projection, described nib is provided with the shrinkage pool coordinating with projection.

5. crayon according to claim 1, is characterized in that: the clamping part of described self-lock rod is provided with the inclined plane contacting with pen core.

6. crayon according to claim 3, is characterized in that: described cone boss is provided with self-lock rod draw-in groove, described self-lock rod draw-in groove matches with self-lock rod.