Fountain pen with nib that is resistant to falling and pollution

Abstract

The present invention relates to the field of writing tools, and in particular to a fountain pen with a nib that is resistant to falling and contamination, including a pen case and a pressure plate. In the fountain pen with a nib that is resistant to falling and contamination of the present invention, after the user turns the dial to push the pen core outward, the user only needs to let the pen press the pressure plate down on the middle finger under the action of its own gravity. Compared with the writing holding posture of holding the pen case with two fingers, the holding posture of the present invention allows the user to hold the pen more comfortably for writing. In addition, the automatic retraction function of the pen core's nib can also prevent the pen core's nib from being clogged by dust due to being released for a long time. It overcomes the technical shortcomings that the nib of the pen core is prone to serious damage due to falling, and the nib is prone to being clogged by dust due to being released for a long time, which affects the user's writing experience of using the pen.

Description

Technical Field

[0001] The invention relates to the field of writing tools, and in particular to a fountain pen with a nib that is resistant to falling and pollution. Background Art

[0002] The nib of the fountain pen core is a flat-bottomed tip structure. When the user is writing with the fountain pen, if the user's grip on the fountain pen slips and causes the pen to fall to the ground, the nib of the fountain pen core will be severely damaged, making the pen unable to be used normally. Every time the fountain pen is subjected to the above-mentioned accidental phenomenon, the nib of the fountain pen core needs to be replaced. Frequent replacement of the nib of the fountain pen core will seriously affect the user's writing experience of using the fountain pen. Although the existing fountain pen is provided with a telescopic function, the telescopic function of the existing fountain pen mainly relies on the user's active pressing to expand and contract the fountain pen core. It is inevitable that the nib of the fountain pen core will be damaged in the above-mentioned accidental phenomenon after the fountain pen core is released downward. Moreover, the nib of the fountain pen core is released for a long time without being retracted, which will cause the nib of the fountain pen core to adhere to dust and become blocked, and will also affect the normal use of the fountain pen.

[0003] Patent CN201833708U discloses a pen with an automatically retractable nib. The retractable pen described in the invention can control the extension and retraction of the nib by pulling a slider. However, after the user pulls out the nib, the user still needs to use two fingers to keep pinching the slider to prevent the nib from rebounding. Therefore, when the user uses the retractable pen, if the user's two fingers keep pinching and pressing the slider for a long time, the user's two fingers will feel sore, affecting the user's experience of using the retractable pen. Summary of the invention

[0004] In order to prevent the tip of the fountain pen core from being seriously damaged due to falling, the user needs to keep pinching the slider with two fingers for a long time when using a retractable pen with a retractable function, which has a technical disadvantage of causing soreness in the two fingers.

[0005] The technical implementation scheme of the present invention: a fountain pen with a nib that is resistant to falling and pollution, comprises a pen case, a connecting rod, a first guide ring, a second guide ring, a paddle, a first compression spring, a bidirectional wedge block, a pen core, a pressure plate and an elastic pressing assembly; the pen case is fixedly connected to a pen cap; the pen case is fixedly connected to a pen head; two connecting rods are slidably connected in the pen case; the first guide ring is commonly fixedly connected between the upper ends of the two connecting rods; the second guide ring is commonly fixedly connected between the lower ends of the two connecting rods; a paddle plate is fixedly connected to the connecting rod; two long slide grooves are provided on the pen case; the paddle plate is slidably connected to the corresponding long slide grooves; a limiting ring is fixedly connected in the pen case; the first compression spring is commonly fixedly connected between the limiting ring and the second guide ring; a pen core is pluggably and commonly plugged in between the first guide ring and the second guide ring; a bidirectional wedge block is fixedly connected to the connecting rod; a pressure plate is rotatably connected to the pen case; a torsion spring is commonly fixedly connected between the pressure plate and the pen case; an elastic pressing assembly that presses the pen core tightly against the first guide ring and the second guide ring is connected in the pen cap.

[0006] Preferably, the pen cap is made of a plastic material with an anti-collision and buffering effect, and a buffer hollow structure is provided inside the plastic material used in the pen cap; the pen tip is made of a rubber material with an anti-collision and buffering effect.

[0007] Preferably, a damping strip is fixedly connected in the long slide groove of the pen housing; and a slot structure corresponding to the damping strip is provided on the dial plate.

[0008] Preferably, a permanent magnet is fixed inside the pen housing, and the first guide ring and the housing of the pen core are both made of steel.

[0009] Preferably, the elastic pressing assembly includes a first pressing ring, a second pressing ring and a second compression spring; the first pressing ring is fixedly connected inside the pen cap; the second compression spring is fixedly connected to the first pressing ring; and the second pressing ring is fixedly connected to the second compression spring.

[0010] Preferably, a shift block is slidably connected to the pen housing; a locking rod is fixedly connected to the shift block; and two locking hole structures corresponding to the locking rods are provided on the pressure plate.

[0011] Preferably, the locking rod is slidably connected to the inside of the pen housing, and the locking rod is made of rubber material.

[0012] Preferably, a metal rod is fixedly connected inside the pen cap; and an impact piece for impacting the metal rod is fixedly connected to the second pressure ring.

[0013] Preferably, a hollow hemispherical structure is provided at the lower end of the metal rod.

[0014] Preferably, the impact member is a spring sheet made of metal material, and the spring sheet is initially located above the hollow hemispherical structure of the metal rod.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a fountain pen with a nib that is resistant to falling and pollution, wherein a connecting rod, a first guide ring and a second guide ring are provided in a pen shell to slide and fix the pen core, an elastic clamping assembly for pressing the pen core tightly against the first guide ring and the second guide ring is provided in a pen cap of the pen shell, and a pressing plate which is a wedge-shaped clamping structure with the wedge block is further provided in the pen shell. After the user pushes the paddle plate to push the pen core outward, the pressing plate clamps the wedge block through the wedge-shaped structure, and then the user allows the pen to press the pressing plate down on the middle finger under the action of its own gravity, so that the pen core's nib can be kept in a released state for writing. Compared with the writing holding posture of holding the pen shell with two fingers, the present invention only requires the pen to be pushed out under the action of its own gravity. The holding posture with the pressure plate pressed on the middle finger allows the user to hold the pen in a more comfortable holding posture for writing. When the middle finger leaves the pressure plate, the tip of the pen core will be automatically retracted into the pen shell and the pen head, and even if it falls accidentally, the tip of the pen core can be protected from falling immediately. The automatic retraction function of the tip of the pen core can also prevent the tip of the pen core from being clogged by dust due to being released for a long time. In addition, when the user applies excessive force during writing and causes the tip of the pen core to be subjected to a large squeezing force, the pen core will push the elastic pressing component in the opposite direction under the squeezing force, so that the tip of the pen core can also be retracted into the pen shell and the pen head, providing squeezing protection for the tip of the pen core;

[0016] The fountain pen with a nib that is resistant to falling and contamination overcomes the technical disadvantage that when using a retractable pen with a retractable function, the user needs to keep pinching a sliding block with two fingers for a long time, which causes soreness in the two fingers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of the pen tip of the present invention in a retracted state is described according to an embodiment;

[0018] Figure 2 A left view of the pen tip of the present invention in a retracted state according to an embodiment;

[0019] Figure 3 A cross-sectional view of a pen case and a pen cap in a state where the pen tip of the present invention is retracted is described according to an embodiment;

[0020] Figure 4 An exploded view for describing the present invention according to an embodiment;

[0021] Figure 5 A three-dimensional schematic diagram of a damping strip and a paddle according to an embodiment of the present invention is described;

[0022] Figure 6 A three-dimensional schematic diagram of a shift plate and a shift block of the present invention is described according to an embodiment;

[0023] Figure 7A schematic three-dimensional diagram of a metal rod and a spring sheet according to an embodiment of the present invention is described;

[0024] Figure 8 A three-dimensional schematic diagram of the pen tip of the present invention in a released state according to an embodiment;

[0025] Fig. 9 The cross-sectional view of the pen shell and the pen cap when the pen tip of the present invention is released is described according to an embodiment.

[0026] Markings in the accompanying drawings: 11-pen case, 110-long slide groove, 12-pen cap, 13-pen tip, 14-limiting ring, 15-damping strip, 16-permanent magnet, 21-connecting rod, 22-first guide ring, 23-second guide ring, 24-push plate, 240-slot, 25-first compression spring, 26-bidirectional wedge block, 3-steel pen core, 31-pressure plate, 310-locking hole, 32-torsion spring, 33-push block, 34-locking rod, 41-first pressure ring, 42-second pressure ring, 43-second compression spring, 51-metal rod, 52-impact member. DETAILED DESCRIPTION

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] Embodiment 1: A fountain pen with a nib that is resistant to falling and contamination, hereinafter referred to as the fountain pen, Figure 1-Figure 7As shown, the pen housing 11, a connecting rod 21, a first guide ring 22, a second guide ring 23, a paddle plate 24, a first compression spring 25, a bidirectional wedge block 26, a pen core 3, a compression plate 31 and a second compression spring 43 are included; the upper end of the pen housing 11 is fixedly connected to a pen cap 12 through a threaded structure; the lower end of the pen housing 11 is fixedly connected to a pen head 13; two connecting rods 21 are slidably connected in the pen housing 11; the upper ends of the two connecting rods 21 are fixedly connected to the first guide ring 22; the two connecting rods 21 are fixedly connected to each other. The lower ends of the two connecting rods 21 are fixedly connected with a second guide ring 23; each of the two connecting rods 21 is fixedly connected with a shift plate 24; the pen housing 11 is provided with two long slide grooves 110; the two shift plates 24 are respectively slidably connected with a corresponding long slide groove 110; a limit ring 14 is fixedly connected inside the pen housing 11; a first compression spring 25 is fixedly connected between the limit ring 14 and the second guide ring 23; a pen core 3 is pluggably connected between the first guide ring 22 and the second guide ring 23, and the pen core 3 is pluggable. The core 3 is pluggably inserted into the first guide ring 22 and the second guide ring 23 from top to bottom through the card structure; a bidirectional wedge block 26 is fixedly connected to each of the two connecting rods 21; a pressing plate 31 is rotatably connected to the pen housing 11, and the pressing plate 31 and the two paddles 24 are in a peripheral ring distribution structure equidistantly surrounding the surface of the pen housing 11; a torsion spring 32 is fixedly connected between the pressing plate 31 and the pen housing 11; a first pressing ring 41 is fixedly connected to the inside of the pen cap 12; and a The second compression spring 43; the second compression ring 42 is fixedly connected to the second compression spring 43. After the pen cap 12 is fixed in the pen case 11, the first compression ring 41 and the second compression ring 42 are respectively limited by the compression of the pen core 3 and the pen cap 12. The first compression ring 41 and the second compression ring 42 jointly compress the second compression spring 43, so that the second compression spring 43 is compressed and generates a reverse deformation elastic force to push the second compression ring 42 to firmly press the pen core 3 into the first guide ring 22 and the second guide ring 23.

[0029] like Figure 3 and Figure 7As shown, the pen cap 12 is made of a plastic material with an anti-collision and buffering effect. The plastic material is hard and not easy to fall off the pen shell 11. The plastic material used in the pen cap 12 is provided with a buffer hollow structure. By reducing the thickness of the plastic material of the pen cap 12, the plastic material of the pen cap 12 can generate enough deformation to perform anti-collision and buffering when hitting the ground, thereby enhancing the anti-collision and buffering effect of the plastic material of the pen cap 12; the pen tip 13 is made of a rubber material with an anti-collision and buffering effect. Compared with the plastic material, the rubber material is softer. The rubber material used in the pen tip 13 The anti-collision and buffering effect of the pen tip of the steel pen core 3 on the impact with the ground is better; a damping strip 15 is fixedly connected to the lower side of each of the two long slide grooves 110 of the pen shell 11, and the damping strip 15 can prevent external dust from entering the interior of the pen shell 11 through the gap area on the lower side of the long slide groove 110, thereby preventing external dust from entering the interior of the pen shell 11 and causing pollution to the steel pen core 3; a slot 240 structure corresponding to the damping strip 15 is respectively provided on the two paddles 24; a permanent magnet 16 with an annular structure is fixedly connected to the pen shell 11, and the first guide ring 22 and the shell of the steel pen core 3 are both made of steel material.

[0030] Before using the fountain pen to write, the user needs to release the nib of the fountain pen core 3, and the working steps are as follows.

[0031] The user pulls the two paddles 24 to move downward along the long slide groove 110, and the damping strip 15 in the long slide groove 110 is inserted into the slot 240 of the paddle plate 24. The paddle plate 24 drives the connecting rod 21 and the first guide ring 22, the second guide ring 23 and the two-way wedge block 26 connected thereto to move downward. The second guide ring 23 drives the first compression spring 25 to be compressed downward. At the same time, the second compression spring 43 which is initially in a compressed state pushes the second compression ring 42 to apply downward pressure on the pen core 3, so that the pen core 3 moves downward with the first guide ring 22 and the second guide ring 23. When the two-way wedge block 26 contacts the pressure plate 31 downward, the two-way wedge block 26 pushes the pressure plate 31 to flip outward along the wedge structure of the pressure plate 31, and the pressure plate 31 drives the torsion spring 32 to twist and generate torque. After the two-way wedge passes through the pressure plate 31 downward, the twisted torsion spring 32 drives the pressure plate 31 to flip in the opposite direction, so that the pressure plate 31 is tightly attached to the two-way wedge block 26 through the wedge structure. Figure 8 and Fig. 9 As shown, at this time, the tip of the pen core 3 is released downward, and the pressure plate 31 and the bidirectional wedge block 26 are mutually wedge-shaped clamping structures, and the first guide ring 22 and the insertion area of ​​the pen core 3 move downward to align with the permanent magnet 16. The permanent magnet 16 will generate a magnetic attraction force on the pen core 3 through the first guide ring 22, so that the pen core 3 is firmly fixed in the first guide ring 22 under the combined action of the magnetic attraction force and the downward thrust from the second compression spring 43.

[0032] At this time, the compressed first compression spring 25 will apply a reverse thrust to the second guide ring 23 and the connecting rod 21 and the bidirectional wedge block 26 connected thereto. However, when the user holds the pen to write, the pressure plate 31 is placed at the middle finger position, so that the pen housing 11 can keep the pressure plate 31 pressed down at the middle finger position under its own gravity, so that the pressure plate 31 keeps blocking the bidirectional wedge block 26. The user only needs to use the middle finger position to press against the pressure plate 31 to keep the tip of the pen core 3 in a downward released state for writing. This is in line with the conventional ergonomic pen-holding posture, and the fingers will not feel sore due to holding the pressure plate 31.

[0033] After the pen tip of the pen core 3 is released, when the user does not need to use the pen, the pen tip of the pen core 3 will automatically retract. The working steps are as follows.

[0034] After the user releases the tip of the pen core 3 and the user's middle finger leaves the pressure plate 31, the compressed first compression spring 25 pushes the second guide ring 23 and the connecting rod 21 and the bidirectional wedge block 26 connected thereto to move in the opposite direction. At this time, the slot 240 of the paddle plate 24 passes through the damping strip 15 during the reverse movement, so that the paddle plate 24 is blocked by the friction of the damping strip 15. Therefore, the first compression spring 25 slowly pushes the connecting rod 21 to drive the second guide ring 23 to push the pen core 3 upward, so that the tip of the pen core 3 is retracted upward into the pen housing 11 and the pen head 13. Since the tip of the pen core 3 moves slowly in the initial stage of retraction due to the blockage of the damping strip 15, Therefore, during the writing process, the user only allows the pressure plate 31 to leave the middle finger for a short time, and the tip of the pen core 3 will not instantly retract into the pen shell 11 and the pen head 13. At this time, the user only needs to press the pressure plate 31 on the middle finger again, and the pressure plate 31 can still keep blocking the two-way wedge block 26, so that the tip of the pen core 3 remains in a downward released state to continue writing. Compared with maintaining the writing holding posture of pinching the pen shell 11 with two fingers, the present invention only requires the holding posture of the pen with the pressure plate 31 pressed on the middle finger under the action of its own gravity, so that the user can hold the pen in a more comfortable holding posture to write, thereby improving the user experience of the pen.

[0035] When the user does not hold the main pen and causes the pen to fall, or the pen is away from the user's middle finger for a long time, the compressed first compression spring 25 will push the connecting rod 21 and the two-way wedge block 26 to move in the opposite direction, so that the tip of the pen core 3 is retracted into the pen shell 11 and the pen head 13 in time, providing a falling protection for the tip of the pen core 3. The automatic retraction function of the tip of the pen core 3 can also prevent the tip of the pen core 3 from being clogged by dust due to being released for a long time.

[0036] In addition, when the user is using the fountain pen to write, if the user writes with excessive force and the tip of the fountain pen core 3 is subjected to a large squeezing force, and when the upward squeezing force on the tip of the fountain pen core 3 is greater than the magnetic attraction force of the permanent magnet 16 and the downward thrust from the second compression spring 43, the fountain pen core 3 will push the elastic clamping assembly upward in the opposite direction under the squeezing force, so that the tip of the fountain pen core 3 can also be retracted into the pen case 11 and the pen head 13 in time, providing squeezing protection for the tip of the fountain pen core 3.

[0037] Embodiment 2: Based on embodiment 1, Figure 1-Figure 7 As shown, a shift block 33 is slidably connected to the pen housing 11; two locking rods 34 are fixedly connected to the shift block 33; two locking holes 310 structures corresponding to the locking rods 34 are provided on the pressure plate 31; the locking rod 34 is slidably connected to the inside of the pen housing 11, and the locking rod 34 is made of rubber material. There is friction between the locking rod 34 made of rubber and the inside of the pen housing 11. When the user swings the pen, the shift block 33 and the locking rod 34 are restricted by the friction and will not easily slide.

[0038] When a user uses the fountain pen of the present embodiment, during the process of the user pushing the dial plate 24 to release the tip of the fountain pen core 3 downward, the connecting rod 21 pushes the bidirectional wedge block 26 to fit with the wedge structure of the pressure plate 31, and at the same time, the second guide ring 23 drives the first compression spring 25 to compress. When the user concentrates on writing and conceiving and ignores the continuous pressing of the pressure plate 31, the compressed first compression spring 25 will push the connecting rod 21 to drive the bidirectional wedge block 26 to leave the pressure plate 31, so that the tip of the fountain pen core 3 is automatically retracted, resulting in the user frequently releasing the tip of the fountain pen core 3 downward during the period of concentrating on writing and conceiving, which affects the user's writing efficiency. Therefore, when the user pushes the dial plate 24, the bidirectional wedge block 26 is pushed away from the pressure plate 31. The plate 24 releases the tip of the pen core 3 downward, allowing the two-way wedge block 26 to fit with the wedge structure of the pressure plate 31. The user can then push the shift block 33 to drive the locking rod 34 to insert into the locking hole 310 structure of the pressure plate 31, so that the pressure plate 31 is locked by the locking rod 34 of the shift block 33 and will not be pushed by the reset two-way wedge block 26, thereby enabling the user to actively turn off the automatic retraction function of the pen, and the tip of the pen core 3 will no longer automatically retract, allowing the user to concentrate on writing and composing. After the user finishes using the pen, the user only needs to pull the shift block 33 to drive the locking rod 34 to leave the pressure plate 31, and the automatic retraction function of the pen will be turned on again. Example

[0039] On the basis of Example 1, Figure 1-Figure 7As shown, a metal rod 51 is fixed inside the pen cap 12, and the lower end of the metal rod 51 is located between the first pressure ring 41 and the second pressure ring 42; a hollow hemispherical structure is provided at the lower end of the metal rod 51; an impact piece 52 for impacting the metal rod 51 is fixed to the second pressure ring 42; the impact piece 52 uses a spring piece made of metal material, and the spring piece is initially located above the hollow hemispherical structure of the metal rod 51.

[0040] When the user uses the fountain pen of the present embodiment, when the user pushes the dial plate 24 to release the tip of the fountain pen core 3 downward, the second guide ring 23 drives the first compression spring 25 to be compressed, and at the same time, the compressed second compression spring 43 drives the second compression ring 42 to drive the spring piece to move downward to under the hollow hemispherical structure of the metal rod 51. Subsequently, when the user does not press the pressure plate 31 for a long time, the compressed first compression spring 25 drives the second guide ring 23 to drive the fountain pen core 3 to bounce upward and reset. In the process of the fountain pen core 3 pushing the second compression ring 42 to drive the spring piece to pass through the hollow hemispherical structure of the metal rod 51 upward, the spring piece will knock on the hollow hemispherical structure of the metal rod 51 once, causing the hollow hemispherical structure of the metal rod 51 to vibrate and emit a crisp prompt sound, so that the user realizes that the tip of the current fountain pen core 3 is already in a retracted state, reminding the user that if he needs to continue using the fountain pen, he needs to push the fountain pen core 3 downward again.

[0041] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A fountain pen with a pen tip that is resistant to falling and contamination, comprising: a pen housing (11); a pen cap (12) fixedly connected to the pen housing (11); a pen tip (13) fixedly connected to the pen housing (11); Its characteristics are: Also includes a connecting rod (21); Two connecting rods (21) are slidably connected in the pen housing (11); a first guide ring (22) is fixedly connected between the upper ends of the two connecting rods (21); a second guide ring (23) is fixedly connected between the lower ends of the two connecting rods (21); a shift plate (24) is fixedly connected to the connecting rods (21); two long slide grooves (110) are provided on the pen housing (11); the shift plate (24) is slidably connected to the corresponding long slide grooves (110); a limit ring (14) is fixedly connected in the pen housing (11); the limit ring A first compression spring (25) is fixedly connected between the pen (14) and the second guide ring (23); a steel pen core (3) is pluggably connected between the first guide ring (22) and the second guide ring (23); a bidirectional wedge block (26) is fixedly connected to the connecting rod (21); a pressing plate (31) is rotatably connected to the pen housing (11); a torsion spring (32) is fixedly connected between the pressing plate (31) and the pen housing (11); and an elastic pressing component for pressing the steel pen core (3) is connected inside the pen cap (12); The pen cap (12) is made of a plastic material having an anti-collision and buffering effect, and a buffer hollow structure is provided inside the plastic material used in the pen cap (12); the pen tip (13) is made of a rubber material having an anti-collision and buffering effect; A damping strip (15) is fixedly connected to the long slide groove (110) of the pen housing (11); a slot (240) structure corresponding to the damping strip (15) is provided on the dial plate (24); A permanent magnet (16) is fixedly connected inside the pen housing (11), and the first guide ring (22) and the housing of the steel pen core (3) are both made of steel. The elastic pressing assembly comprises a first pressing ring (41); A first pressing ring (41) is fixedly connected inside the pen cap (12); a second pressing spring (43) is fixedly connected to the first pressing ring (41); and a second pressing ring (42) is fixedly connected to the second pressing spring (43).

2. A fountain pen with a drop-proof and pollution-proof nib according to claim 1, characterized in that: A shift block (33) is slidably connected to the pen housing (11); a locking rod (34) is fixedly connected to the shift block (33); and two locking holes (310) structures corresponding to the locking rods (34) are provided on the pressing plate (31).

3. A fountain pen with a drop-proof and pollution-proof nib according to claim 2, characterized in that: The locking rod (34) is slidably connected to the inside of the pen housing (11), and the locking rod (34) is made of rubber material.

4. A fountain pen with a drop-proof and pollution-proof nib according to any one of claims 1 to 3, characterized in that: A metal rod (51) is fixedly connected inside the pen cap (12); and an impact piece (52) for impacting the metal rod (51) is fixedly connected to the second pressure ring (42).

5. A fountain pen with a drop-proof and pollution-proof nib according to claim 4, characterized in that: A hollow hemispherical structure is provided at the lower end of the metal rod (51).

6. A fountain pen with a drop-proof and pollution-proof nib according to claim 5, characterized in that: The impact member (52) is a spring piece made of a metal material, and the spring piece is initially located above the hollow hemispherical structure of the metal rod (51).

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