CN200951673Y - Improved two-piece pen structure - Google Patents

Abstract

The invention discloses an improved two-piece pen structure, which comprises a pen core, a pen cap and a pen body. The pen cap and the pen body are characterized in that the pen cap and the pen body move relative to each other to push the pen core. A thread is provided on the inner side of the lower end of the pen cap and the outer side of the upper end of the pen body, i.e., where the two are embedded. The pen cap is provided with a fixing plate tightly fitted on the pen core. When the pen cap and the pen body move relative to each other, the pen core is pushed out of the pen body. The pen cap is provided with an annular positioning part to limit the movement range of the pen cap and the pen body, so that the pen core can move smoothly in the pen body.

Description

Improved two-piece pen structure

technical field

The utility model relates to the structure of a writing tool, in particular to an improved structure of a two-piece writing tool.

Background technique

The pen core of the existing ball pen is fixed, covered by the pen cover, and its pen core cannot be moved; after that, a ball pen that can make the pen core stretch out of the pen body by pressing is released, but the parts and components formed by this ball pen are relatively small. There are many, and the structure of the fixing parts is more complicated, the cost of production and assembly is higher, and the mechanism of moving the refill is more complicated, which makes it easy to damage; there is another kind of rotary ballpoint pen, although the action mechanism is different, it still cannot be reduced. spare parts.

Please refer to Fig. 1. Fig. 1 is an exploded view of an existing ballpoint pen. In the figure, it can be seen that the existing ballpoint pen includes an existing pen holder 11, an existing pen cap 12, a refill 13, a spring 14 and a positioning part 15, The groove of the positioning part 15 and the bump in the pen container 11 cooperate with the spring to drive the refill to move, but this structure has many parts and components, the production and assembly cost is high, and it is easy to be damaged.

In summary, the existing ballpoint pens still have deficiencies that need to be improved urgently. In view of this, the designer of the utility model in this case, based on years of experience in related business work, feels the inconvenience and cost of production and assembly of the above-mentioned existing ballpoint pen structure. Resources, through painstaking research, finally make the utility model be born.

Contents of the invention

The purpose of this utility model is to provide an improved two-piece pen structure, which can provide a pen structure with few parts and smooth refill movement, so as to reduce production and assembly costs and save resources.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An improved two-piece pen tool structure is characterized in that it includes:

A pen core, storing ink, with a writing head at the front end;

The body of a pen is a tube body with a refill inside, a groove at the upper end for the cap to move, and a fitting thread for the cap to fit on the outer side of the upper end;

A pen cap, the top of the pen cap has a fixed piece for guiding and fixing the position of the pen core, the inner side of the lower end is also provided with a fitting thread to fit the pen body, and a ring-shaped positioning part is provided at the lower edge of the pen cap;

The pen core is set inside the pen body and the pen cap, and the top of the pen core is against the fixed piece of the pen cap, and is tightly fitted on the fixed piece. The annular positioning part of the pen cap moves in the groove of the pen cap.

Compared with the prior art, the utility model has the advantages of fewer parts and smooth movement of the pen core, which can reduce production and assembly costs and save resources.

Description of drawings

Fig. 1 is an exploded view of an existing ball pen;

Fig. 2 is an exploded view of the structure improvement of the two-piece pen tool of the present invention;

Fig. 3 is a three-dimensional view of the improved structure of the two-piece pen tool of the present invention;

Fig. 4 is a sectional view of the improved pen cap of the two-piece pen of the present invention;

Fig. 5 is the structural sectional view (1) of the improvement of the structure of the two-piece pen tool of the present utility model;

Fig. 6 is the structural sectional view (2) of the improvement of the structure of the two-piece pen tool of the present utility model;

Fig. 7 is a schematic view showing the improvement of the structure of the two-piece pen tool of the present invention;

Fig. 8 is a diagram of another embodiment of the improved structure of the two-piece pen tool of the present invention.

Explanation of reference signs: 1 existing ballpoint pen; 11 existing pen container; 12 existing pen cap; 13 pen core; 14 spring; 15 positioning part; ; 221 fixed piece; 222 annular positioning part; 23 fitting thread; 24 refill.

Detailed ways

Please refer to Fig. 2 and Fig. 3, which are the exploded view and three-dimensional view of the two-piece pen structure 2 of the present utility model. , the pen body 21 and the pen cap 22 are provided with fitting threads 23, the pen body 21 and the pen cap 22 are screwed together by means of the fitting threads 23, and the annular positioning part 222 on the pen cap 22 can limit the movement range of the pen cap 22 to control the pen The core 24 moves within a set range.

Please refer to Fig. 4, which is a cross-sectional view of the pen cap of the two-piece pen tool structure 2 of the present invention. The top of the inner edge of the pen cap 22 is provided with a fixed piece 221, which is used to fix the position of the pen core 24, and when combined, the pen core 24 is closely matched. It is fixed in the fixed piece 221 so that the pen cap 22 pushes the pen core 24 to move.

Please refer to Fig. 5 and Fig. 6, which are the structure sectional view (1) and the structural sectional view (2) of the two-piece pen tool structure 2 of the present utility model, the pen body 21 and the pen cap 22 are screwed together by means of the fitting thread 23, And rely on rotation to make pen body 21 and pen cap 22 move mutually, and the lower edge of pen cap 22 is provided with an annular positioning part 222, and pen body 21 is provided with a groove below fitting screw thread 23, and when pen body 21 and pen cap 22 fit, pen cap The ring-shaped positioning portion 222 of 22 is just located in the groove, and when the pen body 21 and the pen cap 22 move mutually, the moving range of the ring-shaped positioning portion 222 is limited between the upper and lower edges of the groove. The annular positioning part 222 moves in the groove of the pen body 21 to limit the range of movement of the pen cap 22. After the pen core 24 is fixed on the fixed piece 221 on the pen cap 22, the mutual movement between the pen body 21 and the pen cap 22 is sufficient. Make the pen core 24 advance and retreat.

Please refer to FIG. 7 , which is a schematic diagram of the use of the two-piece pen tool structure 2 of the present invention. As shown in the figure, the pen core 24 is stored in the pen body 21 and the pen cap 22 in the non-use state, and the pen can be rotated by rotating the pen cap 22. The body 21 and the cap 22 move mutually, and the cap 22 is about to push the refill 24 out of the body 21, and the annular positioning part 222 of the cap 22 limits the moving range of the cap 22, so that the refill 24 can be exposed to an appropriate length.

Please refer to Fig. 8, Fig. 8 is another embodiment of the structure improvement of the two-piece pen tool of the present invention, the pen cap 22 is provided with a ring-shaped positioning part 222, and the inner side is also provided with a fitting thread 23, and the pen body 21 can be It is a polygonal shape, and its polygonal shaped pen body 21 still has the same structure, so that the pen core can be easily and smoothly slid out and fixed.

The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes, or equivalent, but all will fall within the scope of the claims of the present utility model.

Claims (5)

1. A two-piece pen tool structure improvement, characterized in that: it includes: A pen core, storing ink, with a writing head at the front end; The pen body is a tubular body with a pen core inside, a groove on the upper end, and a fitting thread for fitting the cap on the outer side of the upper end; A pen cap, the top of the pen cap has a fixed piece for guiding and fixing the position of the pen core, the inner side of the lower end is also provided with a fitting thread to fit the pen body, and a ring-shaped positioning part is provided at the corresponding position between the lower edge of the pen cap and the groove of the pen body; The pen core is set inside the pen body and the pen cap, and the top of the pen core is against the fixed piece of the pen cap, and is tightly fitted on the fixed piece. The annular positioning part of the pen cap is located in the groove of the pen cap. 2. The improved structure of the two-piece pen according to claim 1, wherein the pen body can be polygonal. 3. The improved structure of the two-piece pen according to claim 1, wherein the groove length of the pen body is 5 mm to 8 mm. 4. The structural improvement of the two-piece pen tool according to claim 1, wherein there are more than four fixing pieces. 5. The improved structure of the two-piece pen tool according to claim 1, wherein the shape of the fixing piece can be claw-shaped or polygonal.

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