阅读说明：本技术 一种适配性较好的笔壳和圆珠笔 (Pen shell and ball-point pen with good adaptability ) 是由 金晓华 于 2019-12-13 设计创作，主要内容包括：本发明涉及一种适配性较好的笔壳和圆珠笔。它包括有两端贯通且可固定笔芯头部的第一笔套、内部中空且一端开口的第二笔套以及两端贯通的转动套,第一笔套上远离笔芯头部的一端设有内壁为正多边形的外套接部,第二笔套的开口端设有可与外套接部配合的内套接部,转动套同时与第一笔套、第二笔套的外壁套接且完全覆盖外套接部、内套接部,转动套上位于第一笔套的一端设有向内收缩的环形台阶,第一笔套的外壁上设有可与环形台阶内侧卡合的第一台阶面,转动套上位于第二笔套一端的内壁与第二笔套的外壁为螺纹连接。本发明可以快捷的改变自身的内腔长度,适配多种规格的笔芯。(The invention relates to a pen shell and a ball-point pen with good adaptability. It is including the first pen socket that both ends link up and can fix refill head, inside cavity and one end open-ended second pen socket and the rotation cover that link up at both ends, the one end of keeping away from refill head on the first pen socket is equipped with the outer cup jointing portion that the inner wall is regular polygon, the open end of second pen socket is equipped with can with outer cup jointing portion complex inner cup jointing portion, the rotation cover simultaneously with first pen socket, the outer wall of second pen socket cup joints and covers outer cup jointing portion completely, inner cup jointing portion, the one end that is located first pen socket on the rotation cover is equipped with the annular step of internal contraction, be equipped with on the outer wall of first pen socket can with the first step face of the inboard block of annular step, the inner wall that is located second pen socket one end on the rotation cover is threaded connection with the outer wall of second pen socket. The pen core can quickly change the length of the inner cavity of the pen core and is suitable for pen cores of various specifications.)

1. The utility model provides a better pen shell of suitability which characterized in that: comprises a first pen cap (1) with two through ends and capable of fixing the head part of a pen core, a second pen cap (2) which is hollow inside and has an opening at one end, and a rotating cap (3) with two through ends, wherein an outer sleeved part (11) with a regular polygon inner wall is arranged at one end of the first pen cap (1) far away from the head part of the pen core, an inner sleeved part (21) capable of being matched with the outer sleeved part (11) is arranged at the opening end of the second pen cap (2), the utility model discloses a pen cap, including the outer wall of rotation cover (3) and first pen socket (1), second pen socket (2) cup joint and cover outer cup jointing portion (11), interior cup jointing portion (21) completely simultaneously, the one end that lies in first pen socket (1) on rotation cover (3) is equipped with annular step (31) of internal contraction, be equipped with on the outer wall of first pen socket (1) can with first step face (12) of the inboard block of annular step (31), the inner wall that lies in second pen socket (2) one end on rotation cover (3) is threaded connection with the outer wall of second pen socket (2).

2. The pen case with better adaptability according to claim 1, characterized in that: the outer wall of the first pen cap (1) is provided with second step faces (13) at intervals, the outer end of the first step face (12) is located at the outer wall of the first pen cap (1), an elastic ring (4) is connected to the outer wall of the first pen cap (1) between the second step faces (13) and the annular step (31) in a threaded mode, and the width of the elastic ring (4) is smaller than the distance between the second step faces (13) and the annular step (31).

3. The pen case with better adaptability according to claim 1 or 2, characterized in that: an annular rubber ring (5) is filled between the elastic ring (4) and the second step surface (13).

4. The pen case with better adaptability according to claim 1, characterized in that: the tail end of the inner cavity of the second pen cap (2) is convexly provided with a conical positioning part (6).

5. The pen case with better adaptability according to claim 4, characterized in that: the outer wall of the positioning portion (6) is provided with strip-shaped grooves (61) distributed along the bus of the positioning portion, and the outer wall of the second pen cap (2) is provided with air vents (22).

6. The pen case with better adaptability according to claim 1, characterized in that: the number of the inner wall sides of the outer sleeved part (11) is 5-10.

7. The pen case with better adaptability according to claim 3, characterized in that: a conical positioning part (6) is convexly arranged at the tail end of the inner cavity of the second pen cap (2).

8. The pen case with better adaptability according to claim 7, characterized in that: the outer wall of the positioning portion (6) is provided with strip-shaped grooves (61) distributed along the bus of the positioning portion, and the outer wall of the second pen cap (2) is provided with air vents (22).

9. A ball-point pen comprises a pen shell and a pen core, and is characterized in that: the pen shell is any one of 1-8 pen shells with good adaptability.

Technical Field

The invention relates to a ball-point pen, in particular to a pen shell with good adaptability.

Background

At present, pens with the widest application range on the market belong to ball pens, and the ball pens comprise pen shells and pen cores, and the pen cores can be replaced. However, the refills of different specifications or different manufacturers have different lengths, so that most pen cases can only be used for refills of the same type.

Disclosure of Invention

The invention provides a pen shell with adjustable pen shell inner cavity length and good adaptability; the problem of have among the prior art that the shell can only carry on same specification model refill is solved.

The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a better pen shell of suitability which characterized in that: it is including the first pen socket that both ends link up and can fix refill head, inside cavity and one end open-ended second pen socket and the rotation cover that link up at both ends, the one end of keeping away from refill head on the first pen socket is equipped with the outer cup jointing portion that the inner wall is regular polygon, the open end of second pen socket be equipped with can with outer cup jointing portion complex inner cup jointing portion, the rotation cover cup joint and cover outer cup jointing portion, inner cup jointing portion completely with the outer wall of first pen socket, second pen socket simultaneously, the one end that is located first pen socket on the rotation cover is equipped with the annular step of internal contraction, be equipped with on the outer wall of first pen socket can with the first step face of the inboard block of annular step, the outer wall that is located second pen socket one end on the rotation cover is threaded connection with the outer wall of second pen socket. Because the second pen socket is connected with the first pen socket in a sleeved mode, and the sleeved portion is in a regular polygon shape, the second pen socket and the first pen socket cannot be twisted relatively, the outer wall of the rotating sleeve and the outer wall of the second pen socket are in threaded connection, so that the first pen socket only needs to be fixed, the rotating sleeve is twisted, the second pen socket and the rotating sleeve can be displaced, and the length of the inner cavity of the first pen socket and the length of the inner cavity of the second pen socket are changed. When the length of the inner cavity is reduced to be the same as that of the pen core, the annular step on the rotating sleeve is abutted with the first step surface, and the rotating sleeve cannot rotate continuously. Therefore, the invention can quickly change the length of the inner cavity of the pen, and is suitable for pen cores with various specifications.

Preferably, the outer wall of the first pen sleeve is provided with second step surfaces at intervals, the outer end of the first step surface is positioned on the outer wall of the first pen sleeve, an elastic ring is connected to the outer wall of the first pen sleeve between the second step surfaces and the annular step through threads, and the width of the elastic ring is smaller than the distance between the second step surfaces and the annular step. The elastic ring is in threaded connection with the first pen cap, so that the distance between the elastic ring and the first step surface can be adjusted by twisting, and the rotatability of the annular step can be controlled. When the elastic ring is tightly abutted to the annular step, the annular step is clamped by the elastic ring and the first step surface left and right, and the rotating sleeve cannot be twisted; the elastic ring is loosened, and the sleeve can be rotated to twist. Therefore, the invention can effectively avoid the self-rotation of the rotating sleeve.

Preferably, an annular rubber ring is filled between the elastic ring and the second step surface, and the rubber ring has a squeezable property, so that dirt can be prevented from entering a gap between the elastic ring and the second step surface by the rubber ring on the premise of not influencing the rotation of the elastic ring.

Preferably, the tail end of the inner cavity of the second pen cap is convexly provided with a conical positioning part, and the positioning part can be matched with the tail part of the pen core to play a role in fixing the pen core.

Preferably, the outer wall of the positioning part is provided with strip-shaped grooves distributed along the generatrix of the positioning part, and the outer wall of the second pen cap is provided with vent holes. The refill can constantly reduce along with using, its inside printing ink, and the inner chamber of refill constantly increases, and bar groove and air vent can play the inner chamber that switches on the refill and the effect of outside air, avoid the refill to cross lowly because of its inner chamber atmospheric pressure, and the phenomenon of going out the water difficulty appears.

Preferably, the number of the inner wall sides of the outer connecting portion is 5 to 10.

The invention also provides a ball-point pen, which comprises a pen shell and a pen core and is characterized in that: the pen shell is good in adaptability. The ball-point pen with the same pen shell has the same advantages as the pen shell.

Therefore, compared with the prior art, the invention has the following characteristics: 1. the second pen cap and the first pen cap are relatively incapable of being rotatably sleeved, the rotating cap is in threaded connection with the second pen cap, the length of an inner cavity of the rotating cap can be changed by twisting the rotating cap, and the rotating cap is adaptive to pen cores of various specifications; 2. an elastic ring is connected to the outer wall of the first pen sleeve between the second step surface and the annular step in a threaded manner, so that the rotatability of the annular step is controlled; 3. an annular rubber ring is filled between the elastic ring and the second step surface, so that dirt can be prevented from entering a gap between the elastic ring and the second step surface.

Drawings

FIG. 1 is a longitudinal half-sectional view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is an enlarged view of section C of FIG. 1;

fig. 5 is an enlarged view of a portion D of fig. 1.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.