CN201020976Y - Direct-liquid type pen point structure and writing pen - Google Patents

Abstract

The utility model discloses a direct-liquid type pen point structure and a writing pen, the direct-liquid type pen point structure comprises a pen point seat, a pen point seat and a pen point, wherein the pen point seat is provided with a cavity structure with two open ends, the upper part of the pen point seat is of a conical structure, and the inner wall of the pen point seat is provided with convex ribs; the middle part is of a cavity structure, and the inner wall of the upper end of the cavity is provided with a step protruding out of the inner wall; the inner wall of the lower part is provided with an internal thread for connecting the penholder; moreover, the side wall of the middle part is provided with an ink supply pipe which is inserted and fixed with a slot; the pen point is inserted into the pen point seat; the ventilation fixing piece is provided with a ventilation hole and sleeved on the pen point and abuts against the step on the inner wall of the upper end of the cavity of the pen point seat; the spring is sleeved on the pen point, and the upper end of the spring abuts against the ventilation fixing piece; the upper part of the fixed sleeve is provided with a cavity structure for arranging the ventilating fixing piece and the spring, and the lower part of the fixed sleeve is provided with a through hole for the pen point to penetrate through; the pen point is correspondingly matched with the pressing core of the ink tube. The utility model discloses the nib can replace the use, has convenient to use, characteristics such as environmental protection.

Description

Straight liquid nib structure and writing pen

technical field

The utility model relates to a writing pen, in particular to a straight liquid type nib structure and the writing pen.

Background technique

Traditional writing pens, such as highlighters, whiteboard pens, markers, etc., are mostly filled with ink directly in the pen tube for absorption by the pen core. The type and composition of its structure usually only have a refill planted on the front end of the pen tube to directly absorb the ink inside the pen tube. However, this kind of ink pen that allows the refill to absorb ink can only The entire pen is discarded, which is wasteful and pollutes the environment.

Contents of the invention

The purpose of the utility model is to design and provide a straight liquid nib structure and a writing pen. The nib can be replaced, so as to avoid the waste of the existing writing pen when the ink is used up or the nib is damaged and the entire pen can only be discarded and the environment is damaged. pollution.

In order to achieve the above object, the technical solution of the present utility model is,

The straight liquid nib structure includes a nib holder, which has a cavity structure with two ends open, its upper part is a conical structure, and the inner wall is provided with convex ribs; the middle part is a cavity structure, and the inner wall of the upper end of the cavity is provided with a protruding Steps on the inner wall; the inner wall of the lower part has an internal thread for connecting the pen holder; and, the side wall of the middle part is provided with a slot for inserting and fixing the ink tube; the nib is inserted into the nib holder; the ventilation fixing piece is provided with a ventilation hole , the ventilation fixing piece is sleeved on the nib, and leans against the step of the inner wall of the upper end of the nib seat cavity; the spring is sleeved on the nib, and the upper end is against the ventilation fixing piece; the upper part of the fixing sleeve is provided with a ventilation fixing piece and a spring The cavity structure, the lower part is provided with the through hole for the nib to pass through; the nib is correspondingly matched with the pressing core of the ink tube.

Also, the outer wall of the middle part of the nib holder is provided with a protrusion for fixing the pen cap.

In addition, the inner wall of the through hole at the lower part of the fixed sleeve is provided with convex ribs, so that the fixed sleeve has a water blocking function, realizes control of ink flow, reduces ink flow, and prevents unnecessary waste caused by excessive ink flow.

The replaceable core type writing pen equipped with the straight liquid type nib structure of the present utility model includes a pen cap, a pen holder, an ink tube and a nib structure arranged therein;

The nib structure includes a nib holder, which has a cavity structure with two ends open, its upper part is a conical structure, and the inner wall is provided with convex ribs; the middle part is a cavity structure, and the inner wall of the upper end of the cavity is provided with a protruding Steps on the inner wall; the inner wall of the lower part has an internal thread for connecting the pen holder; and, the side wall of the middle part is provided with a slot for inserting and fixing the ink tube; the nib is inserted into the nib holder; the ventilation fixing piece is provided with a ventilation hole , the ventilation fixing piece is sleeved on the nib, and leans against the step of the inner wall of the upper end of the nib seat cavity; the spring is sleeved on the nib, and the upper end is against the ventilation fixing piece; the upper part of the fixing sleeve is provided with a ventilation fixing piece and a spring The cavity structure, the lower part is provided with a through hole for the nib to penetrate;

The ink tube includes: a body, which is a hollow tube for storing ink; a fixing seat, which is a tube structure, the upper port extends outward to form a boss, and the lower port has a groove inside , the fixing seat is fixed on the upper part of the body body; a pressure core, which is a rod body structure, with a fixed bump on the rod body, and a rib along the axial direction on the shaft body above the fixed bump; one end of the pressure core is inserted into the said In the fixed seat, the fixed protrusion is clamped in the bottom groove of the fixed seat, and a sealing ring is also provided between the pressure core fixed protrusion and the bottom groove of the fixed seat; a spring is sleeved under a pressure core fixed protrusion On the body of the shaft, one end of the spring is clamped under the fixed bump; an ink guide fixed sleeve has an ink guide hole for the ink liquid to flow in on the lower side wall; Under the boss of the upper port of the fixed seat; the lower part of the pressure core passes through the fixed sleeve, and the lower end of the spring sleeved outside the pressure core leans against the inner wall of the bottom of the ink guide fixed sleeve; the nib and the pressure core of the ink tube Match accordingly.

Beneficial effects of the utility model

The utility model separates the structure of the ink tube and the nib, so that the nib can be replaced, so that the existing writing pen can only be discarded when the ink is used up or the nib is damaged, resulting in waste and environmental pollution.

Description of drawings

Fig. 1 is the structural representation of the utility model nib structure;

Fig. 2 is the sectional schematic diagram of the nib structure of the present utility model;

Fig. 3 is the exploded schematic view of the nib structure of the present utility model;

Fig. 4 is a structural schematic diagram of the replaceable core type writing pen with the nib structure of the present utility model.

Detailed ways

Referring to Figures 1 to 3, the structure of the straight liquid pen tip of the present invention includes a pen tip holder 1, a pen tip 2, a ventilation fixing piece 3, a spring 4, and a fixing sleeve 5;

The nib holder 1 has a cavity structure with openings at both ends, the upper part 11 is a conical structure, and the inner wall is provided with convex ribs 111; the middle part 12 is a cavity structure, and the inner wall at the upper end of the cavity is provided with a protruding inner wall. ; The inner wall of the bottom 13 has an internal thread 131 connected to the pen holder; and, the middle side wall is provided with a slot 122 for inserting and fixing the ink tube;

The nib 2 is inserted into the nib holder 1; the ventilation fixing piece 3 has a ventilation hole 31 on it, and the ventilation fixing piece 3 is sleeved on the nib 2 and leans against the step 121 on the inner wall of the upper end of the nib holder 1 cavity; the spring 4. Sleeved on the nib 2, the upper end is against the ventilation fixing piece 3; the upper part of the fixing sleeve 5 is provided with a cavity structure 51 for the ventilation fixing piece 3 and the spring 4, and the lower part is provided with a through hole for the nib 2 to pass through 52; the nib 2 is correspondingly matched with the pressure core of the ink tube. The inner wall of the through hole 52 at the lower part of the fixing sleeve 5 is provided with a convex rib 521 .

The nib 2 can be pressed down and recovered by the spring 4 .

If the nib 2 is damaged, the nib 2 can be taken out, replaced with a new nib 2 and reinserted into the nib holder 1 for use.

Referring to Fig. 4, it is a replaceable core type writing pen equipped with a straight liquid type nib structure of the utility model, including a pen cap 10, a pen holder 20, an ink tube 30 and a nib structure 40 arranged therein;

The ink tube 30 includes a main body 301, which is a hollow tube for storing ink; a fixing seat 302, which is a tube structure, and the upper port extends outward to form a boss 3021, and the lower port opens inwardly. There is a groove 3022, and the fixing seat 302 is fixed on the upper part of the body 301; the pressure core 303, which is a rod body structure, has a fixed protrusion 3031 on the shaft, and a rib 3032 is arranged axially on the shaft above the fixed protrusion 3031; One end of the pressure core 303 is inserted into the fixed seat 302, and the fixed protrusion 3031 is clamped in the groove 3022 at the bottom of the fixed seat 302. A seal is also provided between the fixed protrusion 3031 of the pressure core and the groove 3022 at the bottom of the fixed seat. Ring 304; spring 305, sleeved on the body of a pressure core 303 under the fixed protrusion 3031, one end of the spring 305 is set under the fixed protrusion 3031; ink guide fixed sleeve 306, its lower side wall is provided with ink supply The ink guide hole 3061 that flows in; The fixed sleeve 306 is sleeved and fixed outside the fixed seat 302, and the upper end is against the boss 3021 of the upper port of the fixed seat 302; The lower end of the spring 305 outside the pressing core 303 is against the inner wall of the bottom of the ink guide fixing sleeve 306;

The nib structure 40 includes a nib seat 401, which has a cavity structure with two ends open, its upper part 4011 is a conical structure, and the inner wall is provided with a convex rib 40111; the middle part 4012 is a cavity structure, and the upper end of the cavity is The inner wall is provided with a step 40121 protruding from the inner wall; the inner wall of the lower part 4013 has an internal thread 40131 for connecting the pen holder; and, the side wall of the middle part is provided with a slot 40122 for inserting and fixing the ink tube 30; the nib 402 is inserted into the nib holder 401 Inside; the ventilation fixing piece 403, which has a ventilation hole 4031, and the ventilation fixing piece 403 is sleeved on the nib 402, and leans against the step 40121 on the inner wall of the upper end of the nib seat 401; the spring 404 is sleeved on the nib 402, the upper end Against the ventilation fixed piece 403; the fixed sleeve 405 has a cavity structure 4051 provided for the ventilation fixed piece 403 and the spring 404 on its top, and the bottom is provided with a through hole 4052 for the nib 402 to penetrate; the nib 402 and the described The pressure core 303 of the ink tube 30 is matched correspondingly.

Moreover, the outer wall of the middle part of the nib holder 401 is provided with a protrusion 40123 for fixing the pen cap 10; the inner wall of the lower through hole 4052 of the fixed sleeve 405 is provided with a convex rib 40521.

During use, press the nib 402 to make the pressing core 303 of the ink tube 30 corresponding to the nib 402 move downward, and the groove 3022 that was originally closed by the fixed protrusion 3031 of the pressing core 303 on the fixing seat 302 is opened, and the ink flows from the The gap enters the nib seat 401 in the nib structure 40 along the channel formed by the rib 3032 provided axially on the shaft of the indenter 303, and the nib 402 inserted in the nib seat 401 is infiltrated by the ink to obtain fluid replacement.

When the ink liquid in the ink tube 30 is used up, only the ink tube 30 needs to be replaced, and the upper end of the new ink tube 30 is inserted into the middle part side wall of the nib holder 401 to be provided with the slot 40122 for inserting and fixing the ink tube 30, In this way, the nib part can be reused, and the ink tube of the existing writing pen is avoided from discarding the pen when the ink liquid is used up to cause environmental pollution.

Claims (4)

1. direct-liquid type nib structure is characterized in that, comprise,

The nib seat, it has the cavity body structure of a both ends open, and its top is pyramidal structure, and inwall is provided with fin; The middle part is a cavity body structure, and this cavity upper end inwall is provided with the step that protrudes inwall; Lower inner wall has the internal thread that connects for penholder; And the middle part sidewall is provided with the ink supply water pipe and plugs fixing slot;

Nib is inserted in the nib seat;

The ventilation stator has passage on it, this ventilation stator is sheathed on nib, and on the nib seat cavity step of inwall;

Spring is sheathed on nib, and the upper end is against the ventilation stator;

Fixed cover, its top are established a cavity body structure for ventilation stator, spring setting, and the bottom is provided with the through hole that wears for nib;

The corresponding cooperation of pressure core of this nib and described ink barrel.

2. direct-liquid type nib structure according to claim 1 is characterized in that: described nib seat middle part outer wall is provided with for the fixing projection of the cap for brush.

3. direct-liquid type nib structure according to claim 1 is characterized in that: described fixed cover lower through-hole inwall is provided with fin.

4. renewable core formula lettering pen comprises the cap for brush, penholder and its interior ink barrel, nib structure is set;

It is characterized in that:

Described nib structure comprises,

The nib seat, it has the cavity body structure of a both ends open, and its top is pyramidal structure, and inwall is provided with fin; The middle part is a cavity body structure, and this cavity upper end inwall is provided with the step that protrudes inwall; Lower inner wall has the internal thread that connects for penholder; And the middle part sidewall is provided with the ink supply water pipe and plugs fixing slot;

Nib is inserted in the nib seat;

The ventilation stator has passage on it, this ventilation stator is sheathed on nib, and on the nib seat cavity step of inwall;

Spring is sheathed on nib, and the upper end is against the ventilation stator;

Fixed cover, its top are established a cavity body structure for ventilation stator, spring setting, and the bottom is provided with the through hole that wears for nib;

Described ink barrel, it comprises,

Body, it is the hollow tube for the black liquid of storage;

One holder, it is a pipe structure, and upper port extends to form boss to the outer, has groove in the lower port, and this holder is fixed in body body internal upper part;

One presses core, and it is a body of rod structure, establishes fixedly projection on the shaft, along fixedly axially establishing convex tendon on the shaft more than the projection; Press core one end to be inserted in the described holder, fixedly projection is arranged in the holder bottom groove, and this pressure core is fixedly also established sealing ring between projection and the holder bottom groove;

One spring is sheathed on one and presses core fixedly on the shaft under the projection, and this spring one end is arranged in fixedly under the projection;

One leads black fixed cover, and its underpart sidewall has the ink-guiding hole that ink supply liquid flows into; This is led, and black fixed cover is sheathed to be fixed in outside the holder, and the upper end is resisted against under the boss of holder upper port; Press the core bottom to pass this and lead black fixed cover, be sheathed on and press the outer spring bottom of core to be resisted against to lead black fixed cover bottom interior wall;

The corresponding cooperation of pressure core of this nib and described ink barrel.

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