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CN-224224798-U - Straight liquid type mark pen of explosion-proof ink

CN224224798UCN 224224798 UCN224224798 UCN 224224798UCN-224224798-U

Abstract

The utility model discloses an explosion-proof ink direct-liquid type mark pen which comprises a pen holder, a pen nozzle and a pen point, wherein the pen holder is a hollow structure body with an opening at one end and an ink cavity arranged inside, the pen nozzle is in airtight connection with the opening side of the pen holder, the pen point is connected with the pen nozzle, a valve group is arranged between the pen point and the ink cavity and comprises an ink overflow cavity and a clamping seat, the clamping seat is in airtight connection with the pen holder and/or the pen nozzle, an ink overflow hole is arranged at one end, close to the ink cavity, of the clamping seat, a fixing hole is arranged at one end, far away from the ink cavity, of the clamping seat, the ink overflow cavity is arranged between the ink overflow hole and the fixing hole, the pen point is communicated with the ink cavity after penetrating through the ink overflow hole and the fixing hole, the pen point is in interference fit with the fixing hole, and a hole for enabling ink in the ink cavity to flow to the ink overflow cavity under the pressure effect is arranged between the pen point and the ink overflow hole. The ink-explosion-proof ink pen has reasonable structural design, so that the ink-explosion-proof ink pen has good ink supply continuity and can effectively prevent ink explosion.

Inventors

  • LI TAIAN
  • DENG WENJIE
  • FANG YONGLONG
  • HUANG JING

Assignees

  • 肇庆斯塔文化用品有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (8)

  1. 1. An explosion-proof ink direct-liquid type mark pen comprises a pen holder (10), a pen nozzle (20) and a pen point (30), The pen is characterized in that the pen holder (10) is a hollow structure body with an opening at one end and an ink cavity (11) arranged in the pen holder, the pen nozzle (20) is in airtight connection with the opening side of the pen holder (10), and the pen point (30) is connected with the pen nozzle (20); A valve group (50) is arranged between the pen point (30) and the ink cavity (11), the valve group (50) comprises an ink overflow cavity (58) and a clamping seat (51), the clamping seat (51) is in airtight connection with the pen holder (10) and/or the pen nozzle (20), one end, close to the ink cavity (11), of the clamping seat (51) is provided with an ink overflow hole (52), and one end, far away from the ink cavity (11), is provided with a fixing hole (53), and the ink overflow cavity (58) is arranged between the ink overflow hole (52) and the fixing hole (53); The pen point (30) is communicated with the ink cavity (11) after penetrating through the ink overflow hole (52) and the fixing hole (53), the pen point (30) is in interference fit with the fixing hole (53), and a hole for enabling ink in the ink cavity (11) to flow to the ink overflow cavity (58) under the action of pressure is arranged between the pen point (30) and the ink overflow hole (52).
  2. 2. The explosion-proof ink pen of claim 1, wherein the pen point (30) comprises a writing end (31) and a water diversion core (32) which are arranged in a split mode, one end of the water diversion core (32) is attached to the pen point (30) after penetrating through the ink overflow hole (52) and the fixing hole (53), the other end of the water diversion core (32) is located in the ink cavity (11), the water diversion core (32) is in interference fit with the fixing hole (53), and a hole enabling ink in the ink cavity (11) to flow to the ink overflow hole (58) under the pressure effect is formed between the water diversion core (32) and the ink overflow hole (52).
  3. 3. The ink explosion-proof straight liquid type mark pen as claimed in claim 1, wherein the cross section of the ink overflow hole (52) is polygonal, the sides of the polygon are in interference fit with the side wall of the pen point (30), and a hole is formed between the corners of the polygon and the side wall of the pen point (30).
  4. 4. The explosion-proof ink pen as claimed in claim 1, wherein a first boss (55) extending toward the inside of the ink overflow chamber (58) is arranged on the outer side of the fixing hole (53), The outside of the ink overflow hole (52) is provided with a second boss (56) extending towards the inside of the ink overflow cavity (58), the first boss (55) and the second boss (56) are in clearance sleeve joint, and the first boss (55) is not attached to the ink overflow hole (52).
  5. 5. The ink-explosion-proof straight liquid type mark pen as claimed in claim 4, wherein a plurality of ribs (57) are arranged between the first boss (55) and the second boss (56), and a gap (D) is arranged between the ribs (57) and the first boss (55) or the second boss (56).
  6. 6. The ink explosion-proof pen as claimed in claim 5, wherein the distance between the gaps (D) is 0.05-0.25 mm.
  7. 7. The explosion-proof ink pen as set forth in claim 1, wherein the ink overflow chamber (58) is provided with a vent hole (54) communicating with the outside atmosphere at the outer side of one end of the ink overflow hole (52).
  8. 8. The ink explosion-proof direct-liquid type mark pen as claimed in claim 1, wherein an ink absorbing body (40) is arranged outside a pen point (30) between the valve group (50) and the pen nozzle (20).

Description

Straight liquid type mark pen of explosion-proof ink Technical Field The utility model relates to the technical field of mark pens, in particular to a straight liquid mark pen capable of preventing ink explosion. Background The ink of the direct liquid type mark pen is stored in a pen holder in a liquid form, the ink has good fluidity, and when the mark pen is carried or transported by an individual, the ink can be blown out due to the fact that the air in the ink storage cavity is expanded due to the fact that the ambient temperature is increased or the altitude is increased, and the ink overflows from a pen nozzle or a pen point in a large quantity due to the air expansion, so that dirt and waste are caused. Therefore, there is a need to design a straight liquid type mark pen capable of preventing ink explosion while having good ink supply continuity. Disclosure of Invention The technical scheme of the utility model is as follows: The straight liquid type mark pen capable of preventing ink explosion comprises a pen holder, a pen nozzle and a pen point, and is characterized in that the pen holder is a hollow structure body with one end open and an ink cavity arranged in the pen holder, the pen nozzle is in airtight connection with the open side of the pen holder, and the pen point is connected with the pen nozzle; A valve group is arranged between the pen point and the ink cavity, the valve group comprises an ink overflow cavity and a clamping seat, and the clamping seat is in airtight connection with the pen holder and/or the pen nozzle; The nib is communicated with the ink cavity after penetrating through the ink overflow hole and the fixing hole, the nib is in interference fit with the fixing hole, and a hole for enabling ink in the ink cavity to flow to the ink overflow cavity under the action of pressure is arranged between the nib and the ink overflow hole. Preferably, the pen point comprises a writing end and a water diversion core which are arranged in a split mode, one end of the water diversion core is attached to the pen point after the water diversion core penetrates through the ink overflow hole and the fixing hole, the other end of the water diversion core is positioned in the ink cavity, the water diversion core is in interference fit with the fixing hole, and a hole enabling ink in the ink cavity to flow to the ink overflow cavity under the action of pressure is formed between the water diversion core and the ink overflow hole. Preferably, the cross section of the ink overflow hole is polygonal, the sides of the polygon are in interference fit with the side wall of the pen point, and a hole is formed between the corners of the polygon and the side wall of the pen point. Preferably, the outside of fixed orifices is provided with towards the inside first boss that extends of ink spilling cavity, and the outside of ink spilling hole is provided with towards the inside second boss that extends of ink spilling cavity, first boss and second boss clearance cup joint, and first boss is not laminated with the ink spilling hole. Preferably, a plurality of ribs are arranged between the first boss and the second boss, and gaps are arranged between the ribs and the first boss or the second boss. Preferably, the distance of the gap is 0.05-0.25 mm. Preferably, the ink overflow cavity is provided with a vent hole communicated with the outside atmosphere at the outer side close to one end of the ink overflow hole. Preferably, an ink absorber is arranged at the outer side of the pen point between the valve group and the pen nozzle. Compared with the prior art, the utility model has the beneficial effects that: The ink-explosion-proof ink pen has reasonable structural design, so that the ink-explosion-proof ink pen has good ink supply continuity and can effectively prevent ink explosion. Drawings FIG. 1 is a front view of the present utility model; FIG. 2 is a cross-sectional view A-A of FIG. 1; FIG. 3 is a cross-sectional view B-B of FIG. 2; FIG. 4 is a cross-sectional view of C-C of FIG. 2; Fig. 5 is a schematic perspective cutaway view of the valve block 50. The reference numerals indicate that the pen holder 10, the ink cavity 11, the pen nozzle 20, the pen tip 30, the writing end 31, the water diversion core 32, the ink absorbing body 40, the valve bank 50, the clamping seat 51, the ink overflow hole 52, the fixing hole 53, the vent hole 54, the first boss 55, the second boss 56, the rib 57, the ink overflow cavity 58 and the gap D. Detailed Description In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be