Ball-point pen suitable for refills with various lengths

Abstract

The utility model discloses a ball-point pen suitable for refills with various lengths, which comprises a pen shell, the refills, a pen cover, a sleeve and a fixing cap, the refills are arranged in the pen shell, the sleeve surrounds the outer side face of the refills, the fixing cap is in threaded connection with the outer side face of the sleeve, the refills are connected with the fixing cap through the sleeve, and a clamping piece and a push rod are arranged on the fixing cap. The two clamping pieces are symmetrically distributed on the side face of the fixing cap, the section of each clamping piece is in an L shape, the clamping pieces are fixedly connected with the outer side face of the fixing cap, the clamping pieces expand outwards from bottom to top, the outer side faces of the upper ends of the clamping pieces make contact with the inner wall of the pen shell, a sliding long hole is formed in the outer side face of the pen shell, and the upper end of the sliding long hole is communicated with the upper portion of the pen shell. The push rod is arranged above the fixing cap, one end of the push rod is fixedly connected with the inner side face of the clamping piece, the other end of the push rod is arranged outside the pen shell, and the pen cover is in threaded connection with the upper end face of the pen shell. The pen has the advantages that the pen core can be conveniently stretched out and drawn back, and the pen can be suitable for pen cores with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field related to ballpoint pens, in particular to a ballpoint pen suitable for refills of various lengths. Background Art

[0002] In the huge stationery market, there are a wide variety of ballpoint pens of various specifications. In order to reduce waste, the refills and pen cases are sold separately, so you can only replace the refills. However, the specifications of the refills are also varied, some are long, some are short, some are thick, and some are thin. It is difficult for the pen case to adapt to so many refills of different specifications. In addition, ballpoint pens are usually equipped with pen caps or retractable pen caps to prevent the refills from leaking or drying out. However, in order to adapt to refills of different lengths, the refills of ballpoint pens are generally not easy to retract. If you use pen caps, it will be wasteful and easy to lose.

[0003] The Chinese patent publication number is CN201922699U, and the authorization announcement date is August 10, 2011. It discloses a fun ballpoint pen holder for students, including a pen cap, a pen barrel, and a cone cap fixed to the end of the pen barrel. A connecting sleeve is provided below the pen cap, the pen barrel is inserted into the connecting sleeve, a push handle is provided on the connecting sleeve, a rack groove is provided on the upper part of the pen barrel, the push handle is inserted into the rack groove and matches the rack groove; the end of the pen barrel is provided with an external thread, the inner cavity above the cone cap is provided with an internal thread, the external thread matches the internal thread; and a pen cap clip is provided on the pen cap. The beneficial effects achieved by this utility model are: (1) it can accommodate ballpoint pen refills of various lengths; (2) it is easy to unscrew the cone cap to replace the ballpoint pen refill; (3) it is easy to put the ballpoint pen holder clip in a pocket of clothes. The disadvantages of this utility model are that it cannot facilitate the extension and retraction of the pen refill and cannot adapt to pen refills of different thicknesses. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art that the refill cannot be easily extended or adapted to refills of different thicknesses, and provides a ballpoint pen with refills of various lengths that can be easily extended or adapted to refills of different thicknesses.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ballpoint pen suitable for refills of various lengths, comprising a pen case, a refill, a pen cap, a sleeve and a fixing cap, wherein the refill is placed in the pen case, the lower end of the refill passes through the lower end surface of the pen case and is placed below the pen case, the sleeve surrounds the outer side surface of the refill, the fixing cap is placed above the refill and is threadedly connected to the outer side surface of the sleeve, the refill is connected to the fixing cap via the sleeve, and the fixing cap is provided with a card and a push rod, the card has two cards symmetrically distributed on the side of the fixing cap, the cross-section of the card is L-shaped, and the L of the card The L-shaped horizontal section is fixedly connected to the outer side surface of the fixing cap, the L-shaped vertical section of the card expands outward from bottom to top, the outer side surface of the upper end of the card contacts the inner wall of the pen shell, the fixing cap is clamped with the inner wall of the pen shell through the card, and a long sliding hole is provided on the outer side surface of the pen shell, the upper end of the long sliding hole is communicated with the top of the pen shell, the push rod is placed above the fixing cap, one end of the push rod is fixedly connected to the inner side surface of the card, the other end of the push rod passes through the long sliding hole and is placed outside the pen shell, and the pen cover is threadedly connected to the upper end surface of the pen shell.

[0007] When in use, the sleeve is put over the outer side of the pen core, and the fixing cap is screwed onto the outer side of the sleeve to fix the pen core. The pen core is then placed into the pen case from the top of the pen case, and the push rod should be placed in the sliding long hole. When the card is stuck on the inner wall of the pen case, the push rod is pressed inward to move the two cards toward the middle, thereby reducing the contact with the inner wall of the pen case and allowing the pen core to be lowered smoothly. When the lower end of the pen core passes through the pen case, the push rod is released, and the two cards will be squeezed against the inner wall of the pen case, so that pen cores of different lengths can be fixed. Finally, the pen cap is put on to complete the installation. When the pen core is to be retracted into the pen case, the push rod is pressed and lifted up at the same time to move the pen core upward. The cooperation of the sleeve and the fixing cap can fix pen cores of various diameters, thereby achieving the purpose of facilitating the extension and retraction of the pen core and adapting to pen cores of different thicknesses.

[0008] Preferably, the sleeve is provided with two symmetrical through-holes, each of which is V-shaped. The upper ends of the through-holes communicate with the upper portion of the sleeve. The lower end surface of the fixing cap is provided with a threaded groove, which is smaller at the top and larger at the bottom. The upper end of the sleeve is positioned within the threaded groove, and the sleeve is threadedly connected to the fixing cap via the threaded groove. The V-shaped through-holes and the threaded groove, which is smaller at the top and larger at the bottom, allow the sleeve to secure refills of different diameters by rotating the fixing cap.

[0009] Preferably, the card is provided with a spring, one end of the spring being fixedly connected to the inner side of the card, and the other end of the spring being fixedly connected to the outer side of the fixing cap. When the push rod is released, the spring presses the two pieces of card outward against the inner wall of the pen housing, thereby fixing the pen core.

[0010] Preferably, a support piece is provided on the upper end surface of the fixing cap, the support piece having two positions corresponding to the positions of the cards, the lower end surface of the support piece is fixedly connected to the upper end surface of the fixing cap, one end of the push rod is provided with a connector, the connector is V-shaped, the two ends of the connector respectively pass through the support piece and are fixedly connected to the inner side surface of the card, and one end of the push rod is fixedly connected to the midpoint of the connector. The support piece facilitates the fixing of the connector and the support rod, and the V-shape of the connector facilitates the card to be retracted toward the center when the push rod is pressed.

[0011] Preferably, the outer surface of the card is provided with a groove and a rubber strip. The rubber strip is placed in the groove and fixedly connected to the inner wall of the groove. The outer side of the rubber strip contacts the inner wall of the pen housing, and the card is clamped to the inner wall of the pen housing via the rubber strip. The groove facilitates the installation of the rubber strip, and the rubber strip increases the friction between the card and the inner wall of the pen housing, thereby making the fixation more secure.

[0012] Preferably, the push rod is provided with a pressing block, which is positioned outside the pen housing and fixedly connected to one end of the push rod. The outer side of the pressing block is provided with ridges, a plurality of ridges being evenly distributed on the outer side of the pressing block, and the ridges are integrally formed with the pressing block. The ridges on the pressing block increase friction, making it easier for the user to press and push.

[0013] The beneficial effects of the utility model are as follows: the refill can be easily extended and retracted, and can also be adapted to refills of different thicknesses; the through hole is V-shaped and the threaded groove is smaller at the top and larger at the bottom, so that the sleeve can fix refills of different diameters by rotating the fixing cap; the spring will press the two cards outward toward the inner wall of the pen case after the push rod is released, thereby fixing the refill; the support piece is convenient for fixing the connecting piece and the supporting rod, and the connecting piece is V-shaped, which makes it convenient for the push rod to retract the card toward the middle when pressed; the groove is convenient for installing a rubber strip, which can increase the friction between the card and the inner wall of the pen case, making the fixation more secure; the ridges on the pressing block increase the friction, making it convenient for the user to press and push. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 yes Figure 1 An enlarged view of detail A;

[0016] Figure 3 It is a cross-section of the main view of the present utility model;

[0017] Figure 4 yes Figure 3 Cross-sectional view of BB;

[0018] Figure 5 yes Figure 3 Magnified view of detail C.

[0019] In the figure: 1. Pen case, 2. Pen refill, 3. Pen cap, 4. Sleeve, 5. Fixed cap, 6. Sliding slot, 7. Card, 8. Push rod, 9. Through hole, 10. Threaded groove, 11. Spring, 12. Support sheet, 13. Connector, 14. Groove, 15. Rubber strip, 16. Press block, 17. Ridge. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 4 In an embodiment, a ballpoint pen suitable for refills of various lengths includes a pen case 1, a refill 2, a pen cap 3, a sleeve 4, and a fixing cap 5. The refill 2 is placed in the pen case 1, and the lower end of the refill 2 passes through the lower end surface of the pen case 1 and is placed below the pen case 1. The sleeve 4 surrounds the outer side of the refill 2. The fixing cap 5 is placed above the refill 2 and is threadedly connected to the outer side of the sleeve 4. The refill 2 is connected to the fixing cap 5 through the sleeve 4. The fixing cap 5 is provided with a card 7 and a push rod 8. There are two cards 7 symmetrically distributed on the side of the fixing cap 5, and the cross-section of the card 7 is L-shaped. The L-shaped horizontal section of the card 7 is fixedly connected to the outer side surface of the fixing cap 5, and the L-shaped vertical section of the card 7 expands outward from bottom to top. The outer side surface of the upper end of the card 7 contacts the inner wall of the pen shell 1, and the fixing cap 5 is clamped with the inner wall of the pen shell 1 through the card 7. A sliding long hole 6 is provided on the outer side surface of the pen shell 1. The upper end of the sliding long hole 6 is connected to the top of the pen shell 1. The push rod 8 is placed above the fixing cap 5, and one end of the push rod 8 is fixedly connected to the inner side surface of the card 7. The other end of the push rod 8 passes through the sliding long hole 6 and is placed outside the pen shell 1. The pen cover 3 is threadedly connected to the upper end surface of the pen shell 1.

[0022] like Figure 2 and Figure 5 As shown, the sleeve 4 is provided with two through holes 9, which are symmetrical and V-shaped. The upper ends of the through holes 9 are connected to the upper part of the sleeve 4, and a thread groove 10 is provided on the lower end surface of the fixing cap 5. The thread groove 10 is small at the top and large at the bottom. The upper end of the sleeve 4 is placed in the thread groove 10, and the sleeve 4 is threadedly connected to the fixing cap 5 through the thread groove 10.

[0023] like Figure 5 As shown, a spring 11 is provided on the card 7 , one end of the spring 11 is fixedly connected to the inner side of the card 7 , and the other end of the spring 11 is fixedly connected to the outer side of the fixing cap 5 .

[0024] like Figure 4 and Figure 5As shown, a support piece 12 is provided on the upper end surface of the fixing cap 5, and the support piece 12 has two positions corresponding to the card 7. The lower end surface of the support piece 12 is fixedly connected to the upper end surface of the fixing cap 5, and a connecting piece 13 is provided on one end of the push rod 8. The shape of the connecting piece 13 is V-shaped, and the two ends of the connecting piece 13 pass through the support piece 12 and are fixedly connected to the inner side surface of the card 7. One end of the push rod 8 is fixedly connected to the midpoint of the connecting piece 13.

[0025] like Figure 5 As shown, a groove 14 and a rubber strip 15 are provided on the outer surface of the card 7. The rubber strip 15 is placed in the groove 14 and fixedly connected to the inner wall of the groove 14. The outer side of the rubber strip 15 contacts the inner wall of the pen housing 1, and the card 7 is clamped to the inner wall of the pen housing 1 through the rubber strip 15.

[0026] like Figure 1 、 Figure 2 and Figure 4 As shown, a pressing block 16 is provided on the push rod 8, and the pressing block 16 is placed outside the pen shell 1. The pressing block 16 is fixedly connected to one end of the push rod 8. The outer side surface of the pressing block 16 is provided with a ridge 17. There are several ridges 17 and they are evenly distributed on the outer surface of the pressing block 16. The ridge 17 and the pressing block 16 are integrally formed.

[0027] When in use, the sleeve 4 is put over the outer side of the refill 2, and then the fixing cap 5 is screwed onto the outer side of the sleeve 4. The sleeve 4 extends into the thread groove 10 of different lengths. The V-shaped through hole 9, with the upper small and lower large thread groove 10, can fix refills 2 of different thicknesses. Then the refill 2 is placed into the pen case 1 from the top, and the push rod 8 is placed in the sliding long hole 6. When the rubber strip 15 in the groove 14 of the card 7 is stuck to the inner wall of the pen case 1, the pressing block 16 is pressed to press the push rod 8 inward, and the connecting piece 13 allows the two cards 7 to move toward the support piece 12, from The contact with the inner wall of the pen case 1 is reduced, allowing the pen core 2 to be lowered smoothly. When the lower end of the pen core 2 passes through the pen case 1, the push rod 8 is released, and the two cards 7 are squeezed toward the inner wall of the pen case 1 under the action of the spring 11, so that the pen cores 2 of different lengths can be fixed. Finally, the pen cover 3 is closed to complete the installation. When the pen core 2 is to be retracted into the pen case 1, the pressing block 16 is pressed and lifted upward at the same time to move the pen core 2 upward. The ridges 17 on the pressing block 16 increase the friction, making it easier for the user to press and push, thereby achieving the purpose of facilitating the extension and retraction of the pen core and adapting to pen cores of different thicknesses.

Claims

1. A ballpoint pen suitable for refills of various lengths, characterized in that: The invention comprises a pen case (1), a pen core (2), a pen cover (3), a sleeve (4) and a fixing cap (5), wherein the pen core (2) is placed in the pen case (1), the lower end of the pen core (2) passes through the lower end surface of the pen case (1) and is placed below the pen case (1), the sleeve (4) surrounds the outer side surface of the pen core (2), the fixing cap (5) is placed above the pen core (2) and is threadedly connected to the outer side surface of the sleeve (4), the pen core (2) is connected to the fixing cap (5) through the sleeve (4), and the fixing cap (5) is provided with a card (7) and a push rod (8), the card (7) has two and symmetrically distributed on the side surface of the fixing cap (5), the cross-section of the card (7) is L-shaped, and the L of the card (7) is L-shaped. The L-shaped horizontal section is fixedly connected to the outer side surface of the fixed cap (5), the L-shaped vertical section of the card (7) expands outward from bottom to top, the outer side surface of the upper end of the card (7) contacts the inner wall of the pen shell (1), the fixed cap (5) is clamped with the inner wall of the pen shell (1) through the card (7), a sliding long hole (6) is provided on the outer side surface of the pen shell (1), the upper end of the sliding long hole (6) is communicated with the upper part of the pen shell (1), the pushing rod (8) is placed above the fixed cap (5), one end of the pushing rod (8) is fixedly connected to the inner side surface of the card (7), the other end of the pushing rod (8) passes through the sliding long hole (6) and is placed outside the pen shell (1), and the pen cover (3) is threadedly connected to the upper end surface of the pen shell (1).

2. A ballpoint pen suitable for refills of various lengths according to claim 1, characterized in that: The sleeve (4) is provided with two through holes (9), the two through holes (9) are symmetrical, the through holes (9) are V-shaped, the upper ends of the through holes (9) are communicated with the upper part of the sleeve (4), and the lower end surface of the fixing cap (5) is provided with a thread groove (10), the thread groove (10) is smaller at the top and larger at the bottom, the upper end of the sleeve (4) is placed in the thread groove (10), and the sleeve (4) is threadedly connected to the fixing cap (5) through the thread groove (10).

3. A ballpoint pen suitable for refills of various lengths according to claim 1, characterized in that: The card (7) is provided with a spring (11), one end of the spring (11) is fixedly connected to the inner side of the card (7), and the other end of the spring (11) is fixedly connected to the outer side of the fixing cap (5).

4. A ballpoint pen suitable for refills of various lengths according to claim 1, characterized in that: A support piece (12) is provided on the upper end surface of the fixing cap (5), and the support piece (12) has two positions corresponding to the card (7). The lower end surface of the support piece (12) is fixedly connected to the upper end surface of the fixing cap (5). A connecting piece (13) is provided on one end of the push rod (8), and the shape of the connecting piece (13) is V-shaped. The two ends of the connecting piece (13) pass through the support piece (12) and are fixedly connected to the inner side surface of the card (7). One end of the push rod (8) is fixedly connected to the midpoint of the connecting piece (13).

5. A ballpoint pen suitable for refills of various lengths according to claim 1, characterized in that: A groove (14) and a rubber strip (15) are provided on the outer side of the card (7); the rubber strip (15) is placed in the groove (14) and fixedly connected to the inner wall of the groove (14); the outer side surface of the rubber strip (15) contacts the inner wall of the pen housing (1); and the card (7) is clamped to the inner wall of the pen housing (1) via the rubber strip (15).

6. A ballpoint pen suitable for refills of various lengths according to claim 1, characterized in that: The push rod (8) is provided with a pressing block (16), the pressing block (16) is placed outside the pen housing (1), the pressing block (16) is fixedly connected to one end of the push rod (8), the outer side surface of the pressing block (16) is provided with a ridge (17), the ridges (17) are in plurality and evenly distributed on the outer side surface of the pressing block (16), and the ridges (17) and the pressing block (16) are integrally formed.

Images