CN110202977B - Press writing tool with automatic sealing device - Google Patents
Press writing tool with automatic sealing device Download PDFInfo
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- CN110202977B CN110202977B CN201910626375.1A CN201910626375A CN110202977B CN 110202977 B CN110202977 B CN 110202977B CN 201910626375 A CN201910626375 A CN 201910626375A CN 110202977 B CN110202977 B CN 110202977B
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- sealing
- inner rod
- assembled
- pen
- boss
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- 238000007789 sealing Methods 0.000 title claims abstract description 126
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 210000005239 tubule Anatomy 0.000 claims description 2
- 230000009471 action Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
- B43K5/02—Ink reservoirs
- B43K5/10—Ink reservoirs with reserve ink chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pens And Brushes (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a pressing writing tool with an automatic sealing device, which comprises: a housing for providing the knock writing instrument body, the housing defining a cavity therein; the sealing mechanism is arranged near the bottom of the shell and is provided with a communication hole through which the pen core can pass; the actuating mechanism responds to the pressing operation to actuate the sealing mechanism to enable the cavity to be switched between a sealing state and an atmosphere communication state; the cartridge is used for providing a writing function, when the cavity is converted from a sealed state to an atmosphere communication state, the actuating mechanism actuates the cartridge to extend out of the bottom of the shell through the sealing mechanism communication hole, and when the cavity is converted from the atmosphere communication state to the sealed state, the actuating mechanism actuates the cartridge to retract into the shell through the sealing mechanism communication hole and seal in the cavity.
Description
Technical Field
The invention relates to the field of stationery, in particular to a pressing writing tool with an automatic sealing device.
Background
The press writing tools with sealing devices on the market mainly have the following problems: firstly, the internal parts are too complicated, and are not easy to assemble after being disassembled; secondly, the pressing writing tools with sealing devices on the market at present are mainly concentrated on pressing fluorescent pens and pressing whiteboard pens, the sealing requirements are high, but the sealing effect of products on the market is poor due to the structural problem, and the phenomena of ink leakage and air drying of pen point ink appear; thirdly, the appearance is very thick due to the internal structure, so that the pen holder is not suitable for consumers of middle and primary school students; and primary and secondary school student consumers are important consumer groups of stationery products.
Therefore, in order to simplify the internal structure, extend the life span, and enhance the user's experience, it is necessary to develop a completely new knock writing instrument with an automatic sealing device.
Disclosure of Invention
The invention provides a novel pressing writing tool with an automatic sealing device, which has a good sealing function, an easy-to-assemble internal structure and a fine pen holder.
The invention adopts the following technical scheme:
a knock writing instrument with an automatic sealing device, comprising: a housing for providing the knock writing instrument body, the housing defining a cavity therein; the sealing mechanism is arranged near the bottom of the shell and is provided with a communication hole through which the pen core can pass; the actuating mechanism responds to the pressing operation to actuate the sealing mechanism to enable the cavity to be switched between a sealing state and an atmosphere communication state; the cartridge is used for providing a writing function, when the cavity is converted from a sealed state to an atmosphere communication state, the actuating mechanism actuates the cartridge to extend out of the bottom of the shell through the sealing mechanism communication hole, and when the cavity is converted from the atmosphere communication state to the sealed state, the actuating mechanism actuates the cartridge to retract into the shell through the sealing mechanism communication hole and seal in the cavity.
Further, the shell is a pen holder, a pen point hole is formed in the bottom of the pen holder, and a pen holder through groove is formed in the upper portion of the pen holder.
Further, the cartridge includes: an inner rod, a water storage core, a pen point and a pipe plug,
more specifically, the inner rod is a cylinder with a thin tube arranged at the lower part;
more specifically, the water storage core is assembled inside the inner rod, and the water storage core stores ink;
more specifically, the pen point is assembled at the top of the inner rod, the rear part of the pen point is inserted into the water storage core so as to achieve the ink guiding effect, and the pen point is provided with a step positioning assembly position;
more specifically, the pipe plug is assembled to the top of the inner rod to seal the water storage core, and the pipe plug is detachable to facilitate replacement of the water storage core.
Further, the actuation mechanism includes a first actuation unit including: a guide rail, a rotating wheel, a press head and a telescopic spring,
more specifically, the guide rail is provided with an elastic buckling point, the guide rail is assembled in the pen holder through groove through the elastic buckling point, and the guide rail is provided with a guide groove;
more specifically, a runner boss is arranged on the runner so as to be assembled in the guide groove, a tooth shape corresponding to the bottom of the guide rail is arranged at the top of the runner, and the runner is assembled at the middle step position of the inner rod in the inner rod;
more specifically, a snap boss is arranged on the snap to be assembled in the guide groove, a tooth shape corresponding to the top of the rotating wheel is arranged at the bottom of the snap, and the snap is assembled at the top of the pen holder;
more specifically, the telescopic spring is assembled to the bottom of the inner rod, and the telescopic spring can elastically return the inner rod to its original position.
Further, the actuation mechanism includes a second actuation unit including: a guiding piece, a sealing seat and a lining,
more specifically, the guide piece is assembled at the lower part of the inner rod, two through headspace grooves and two non-through headspace grooves are respectively arranged at the four equal dividing positions of the guide piece, and the through headspace grooves are in a bottleneck shape;
more specifically, the sealing seat is assembled in the guide piece along the through-head empty slot through a sealing seat semicircular boss, two straight-section rib positions extend on the sealing seat semicircular boss, the sealing seat is fixed by matching the sealing seat semicircular boss with steps at corresponding positions in the pen holder, the tops of the straight-section rib positions are connected through a circular ring structure, and a circular through hole is formed in the middle of the sealing seat;
more specifically, the liner seals the gap between the sealing valve and the sealing seat, and the material of the liner is a flexible material.
Further, the sealing mechanism includes a transmission member and a sealing valve formed with the communication hole, the sealing valve being connected to the transmission member by a fixing feature on the transmission member.
Further, the middle part of the sealing valve is hollow, the hollow part of the middle part of the sealing valve is cylindrical,
more specifically, the transmission part is a sphere with a hollowed-out middle part, the sealing valve gear is matched with a tooth-shaped part formed on the bottom of the guide piece,
more specifically, the securing feature is a cylindrical feature that fits into a recessed ear provided in the bottom of the seal holder.
Further, the middle part of the lining is provided with a circular through hole, the flexible material of the lining is rubber, the bottom of the lining is provided with a bottom step, the diameter of the bottom step is larger than that of the circular through hole of the sealing seat, and the outer diameter of the cylindrical section of the lining is matched with the hollow diameter of the circular through hole of the sealing seat.
Further, an inner rod boss is arranged on the inner rod and is assembled in the blind headspace groove, and an inner rod triangular boss is arranged on the inner rod.
More specifically, the initial position of the inner rod triangle boss is above the through-head space groove, and the bottom edge of the inner rod triangle boss is longer than the bottleneck-shaped gap of the through-head space groove.
Further, in the sealed state, the communication hole of the sealing valve is vertically staggered with the circular through hole of the lining by 90 degrees.
The invention designs a brand new pressing writing tool with an automatic sealing device, and the sealing device can realize automatic opening and closing actions in the pressing process through a simple and exquisite structure.
Drawings
The foregoing aspects of the invention and the following detailed description will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions. In the drawings, like reference numbers indicate identical or similar elements.
Fig. 1 is an exploded perspective view of a knock-type writing instrument having an automatic sealing device according to one embodiment of the present invention.
Fig. 2 is an exploded perspective view of a seal assembly in a knock writing instrument having an automatic seal according to one embodiment of the present invention.
Fig. 3 is a perspective view of the barrel.
Fig. 4 is a front view of the guide rail.
Fig. 5 is a side view of the guide rail.
Fig. 6 is an axial cross-sectional view of the guide rail.
Fig. 7 is a bottom view of the guide rail.
Fig. 8 is a top view of the guide rail.
Fig. 9 is a front view of the wheel.
Fig. 10 is an axial cross-section of the wheel.
FIG. 11 is a cross-sectional view of a wheel.
Fig. 12 is a perspective view of the wheel.
Fig. 13 is a front view of the thumb press.
Fig. 14 is an axial cross-sectional view of the thumb press.
Fig. 15 is a top view of the thumb press.
Fig. 16 is a perspective view of the inner rod.
Fig. 17 is an axial cross-sectional view of the inner rod.
Fig. 18 is a front view of the inner rod.
Fig. 19 is a bottom view of the pipe plug.
Fig. 20 is a perspective view of a pipe plug.
Fig. 21 is a front view of the pipe plug.
Fig. 22 is an axial cross-sectional view of the pipe plug.
Fig. 23 is an axial sectional view of the sealing valve.
Fig. 24 is a perspective view of the sealing valve.
Fig. 25 is a top view of the sealing valve.
Fig. 26 is a side view of the sealing valve.
Fig. 27 is a perspective view of the guide.
Fig. 28 is an axial cross-sectional view of the guide.
Fig. 29 is a front view of the guide.
Fig. 30 is a side view of the guide.
Fig. 31 is a perspective view of the seal holder.
Fig. 32 is an axial cross-sectional view of the seal holder.
Fig. 33 is a front view of the seal holder.
Fig. 34 is a side view of the seal holder.
Fig. 35 is a front view of the liner.
Fig. 36 is an axial cross-sectional view of the liner.
Fig. 37 is a front view of the extension spring.
Fig. 38 is a sectional view of the knock writing instrument in the knock-out state.
Fig. 39 is a cross-sectional view of the knock writing instrument in a knock core retracted state.
Wherein reference numerals are as follows:
1. pen holder
1a nib hole
1b penholder through groove
2. Guide rail
2a elastic fastening point
2b guide groove
3. Rotating wheel
3a runner boss
4. Press head
4a press head boss
5. Inner rod
5a middle step of inner rod
5b inner rod boss
5c inner rod triangle boss
6. Water storage core
7. Pen point
8. Pipe plug
9. Sealing valve
9a seal valve gear
9b cylindrical features
10. Guide piece
10a through headspace groove
10b non-open headspace groove
11. Sealing seat
11a concave ear
11b semicircular boss of sealing seat
11c straight section rib position
12. Lining(s)
12a lining bottom step
13. Telescopic spring
Detailed Description
The detailed features and advantages of the present invention will be readily apparent to those skilled in the art from that description, claims, and drawings.
A knock writing instrument with an automatic sealing device as shown in fig. 1, comprising: a shell, a pen core, an actuating mechanism and a sealing mechanism,
the outer shell is used for providing the pressing writing tool body, and a cavity is formed in the outer shell;
the sealing mechanism is arranged near the bottom of the shell and is provided with a communication hole through which the pen core can pass;
the actuating mechanism responds to the pressing operation to actuate the sealing mechanism to enable the cavity to be switched between a sealing state and an atmosphere communication state;
the cartridge is used for providing a writing function, when the cavity is converted from a sealed state to an atmosphere communication state, the actuating mechanism actuates the cartridge to extend out of the bottom of the shell through the sealing mechanism communication hole, and when the cavity is converted from the atmosphere communication state to the sealed state, the actuating mechanism actuates the cartridge to retract into the shell through the sealing mechanism communication hole and seal in the cavity.
The shell is used for providing the pressing writing tool body, and the shell is a pen holder 1.
The cartridge is used for providing a writing function, and the cartridge comprises: the inner rod 5, the water storage core 6, the nib 7 and the pipe plug 8.
The actuating mechanism being operable in response to an external operation to change an internal sealing state of the knock writing instrument, the actuating mechanism being resiliently returned to an initial position by the knock operation, the actuating mechanism comprising: the device comprises a guide rail 2, a rotating wheel 3, a press head 4, a telescopic spring 13, a guide piece 10, a sealing seat 11 and a lining 12;
the sealing mechanism is controlled by an actuating mechanism to change the state of sealing or communication inside the writing instrument, the sealing mechanism has a communication hole and a transmission member for responding to the movement of the transmission mechanism, and the sealing mechanism comprises a transmission member and a sealing valve 9.
The pen holder 1 is provided with a pen point hole 1a at the bottom, and a pen holder through groove 1b is arranged at the upper part of the pen holder 1.
The guide piece 10 is assembled at the lower part of the inner rod 5, two through headspace grooves 10a and two non-through headspace grooves 10b are respectively arranged at the four equal dividing positions of the guide piece 10, and the opening part of the through headspace groove 10a is provided with a bottleneck-shaped angle.
The inner rod 5 is a cylinder with a tubule arranged at the lower part, the inner rod 5 is provided with an inner rod boss 5b which is assembled in the non-passing headspace groove 10b, the inner rod 5 is provided with an inner rod triangle boss 5c, the inner rod 5 transmits pressing power to the guide piece 10 by utilizing the inner rod triangle boss 5c, and when the guide piece 10 moves down to the right position, the inner rod triangle boss 5c enters the passing headspace groove 10a due to an open slot structure.
The water storage core 6 is assembled inside the inner rod 5, and the water storage core 6 stores ink.
The pen point 7 is assembled at the top of the inner rod 5, the rear part of the pen point 7 is inserted into the water storage core 6 so as to achieve the ink guiding effect, and the pen point 7 is provided with a step positioning assembly position.
The pipe plug 8 is assembled at the top of the inner rod 5 to seal the water storage core 6, and the pipe plug 8 is detachable to facilitate replacement of the water storage core 6.
The guide rail 2 is provided with an elastic buckling point 2a, the guide rail 2 is assembled in the pen holder through groove 1b through the elastic buckling point 2a, and the guide rail 2 is provided with a guide groove 2b.
The rotating wheel 3 is provided with a rotating wheel boss 3a so as to be assembled in the guide groove 2b, the top of the rotating wheel 3 is provided with a tooth shape corresponding to the bottom of the guide rail 2, and the rotating wheel 3 is assembled at the middle step 5a of the inner rod in the inner rod.
The snap 4 is provided with a snap boss 4a to be assembled in the guide groove 2b, the bottom of the snap 4 is provided with a tooth shape corresponding to the top of the rotating wheel 3, and the snap 4 is assembled on the top of the pen holder 1. The snap 4 is matched with the rotating wheel 3, the guide rail 2, the inner rod 5 and the telescopic spring 13 to complete the core-out and retraction actions of the pen point 7
The telescopic spring 13 is assembled at the bottom of the inner rod 5, and the telescopic spring 13 can elastically return the inner rod 5 to its original position.
The sealing seat 11 is assembled inside the guide piece 10 along the through-head empty groove 10a through the sealing seat semicircular boss 11b, two straight-section rib positions 11c extend on the sealing seat semicircular boss 11b, the sealing seat semicircular boss 11b is matched with steps at corresponding positions inside the pen holder 1 to fix the sealing seat 11, the tops of the straight-section rib positions 11c are connected through circular ring features, and a circular through hole is formed in the middle of the sealing seat 11.
The inner liner 12 seals the gap between the sealing valve and the sealing seat, and the inner liner is made of flexible material. The flexible material of the lining is rubber. The middle part of the inner liner 12 is provided with a circular through hole, the bottom of the inner liner is provided with a bottom step 12a, the diameter of the bottom step is larger than that of the circular through hole of the sealing seat 11, and the outer diameter of a cylindrical section of the inner liner 12 above the bottom step 12a is matched with the hollow diameter of the circular through hole of the sealing seat 11.
The sealing valve 9 is formed with the communication hole, and the sealing valve 9 is connected to the transmission member by a fixing feature. The sealing valve 9 is a sphere with a hollowed-out middle part, and the hollowed-out middle part is cylindrical and forms a connecting hole for the refill to pass through. The transmission part is a sealing valve gear 9a, the sealing valve gear 9a is matched with a tooth-shaped part formed on the bottom of the guide piece 10, the fixing feature is a cylindrical feature 9b, and the cylindrical feature 9b is assembled in a concave lug 11a arranged on the bottom of the sealing seat 11. In the sealed state, the communication hole of the sealing valve 9 is vertically staggered by 90 degrees from the circular through hole of the lining 12.
The sealing valve 9, the lining 12, the sealing seat 11, the guide piece 10, the telescopic spring 13, the inner rod 5, the pipe plug 8, the pen point 7 and the water storage core 6 form a structure whole.
The knock writing instrument with the self-sealing device described above achieves a transition between the off-center and sealed states by:
core-out time: pressing the press head 4, under the action of the tooth form at the bottom of the press head 4 and the tooth form of the rotating wheel 3, enabling the rotating wheel 3 to rotate for a certain angle, enabling the rotating wheel boss 3a to leave the guide groove 2b, under the action of the tooth form at the bottom of the press head 4 and the tooth form of the rotating wheel 3, enabling the rotating wheel 3 to rotate for a certain angle, loosening the press head 4, and under the action of the telescopic spring 13, enabling the rotating wheel boss 3a to move to the tooth form position below the guide rail 2 and be fixed; the pressing force is transmitted to the guide piece 10 through the inner rod triangular boss 5c, the tooth shape at the bottom of the guide piece 10 is matched with the sealing valve gear 9a, the sealing valve 9 is assembled on the sealing seat 11, and the sealing seat 11 cannot move downwards because of a circle of steps at the corresponding position in the penholder; thus during the downward movement of the guide 10, the interaction of the bottom toothing with the sealing valve gear wheel 9a causes a 90 ° rotation of the sealing valve 9 in the female lug 11 a; so that the cylindrical communication hole in the middle of the sealing valve 9 is connected with the through hole of the inner liner 12 and the circle centers are positioned on the same central line; and a channel is provided for the core-out of the pen point 7, and at the moment, the rotating wheel boss 3a is matched with the tooth-shaped part at the bottom of the guide rail 2, so that the core-out action is realized.
When in sealing: pressing the press head 4 again, under the action of the tooth form of the bottom of the press head 4 and the tooth form of the rotating wheel 3, enabling the rotating wheel 3 to rotate for a certain angle, enabling the rotating wheel boss 3a to return to the guide groove 2b, and under the action of the elasticity of the telescopic spring 13, enabling the inner rod 5 to move upwards by the spring force, and driving the guide piece 10 to move upwards through the inner rod triangular boss 5c and the through-head space groove 10 a; the tooth-shaped part at the bottom of the guide piece 10 interacts with the sealing valve gear 9a, at the moment, the sealing valve 9 rotates 90 degrees, the cylindrical communication hole of the sealing valve 9 is perpendicular to the circular communication hole of the lining 12, the pen point 7 is retracted into the lining 12, and the mouth part of the lining 12 is sealed by the sealing valve 9, so that the effect of sealing the pen point is achieved.
The terms and expressions which have been employed herein are used as terms of description and not of limitation. The use of these terms and expressions is not meant to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications are possible and are intended to be included within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.
Also, it should be noted that while the present invention has been described with reference to the particular embodiments presently, it will be appreciated by those skilled in the art that the above embodiments are provided for illustration only and that various equivalent changes or substitutions may be made without departing from the spirit of the invention, and therefore, the changes and modifications to the above embodiments shall fall within the scope of the claims of the present invention as long as they are within the true spirit of the invention.
Claims (3)
1. A knock writing instrument having an automatic sealing device, comprising: a shell, a pen core, an actuating mechanism and a sealing mechanism,
the outer shell is used for providing the pressing writing tool body, and a cavity is formed in the outer shell;
the sealing mechanism is arranged near the bottom of the shell and is provided with a communication hole through which the pen core can pass;
the actuating mechanism responds to the pressing operation to actuate the sealing mechanism to enable the cavity to be switched between a sealing state and an atmosphere communication state;
the pen refill is used for providing a writing function, when the cavity is converted from a sealed state to an atmosphere communication state, the actuating mechanism actuates the pen refill to extend out of the bottom of the shell through the sealing mechanism communication hole, and when the cavity is converted from the atmosphere communication state to the sealed state, the actuating mechanism actuates the pen refill to retract into the shell through the sealing mechanism communication hole and seal in the cavity;
the shell is a pen holder (1), a pen point hole (1 a) is formed in the bottom of the pen holder (1), and a pen holder through groove (1 b) is formed in the upper portion of the pen holder (1);
the pen refill comprises: an inner rod (5), a water storage core (6), a pen point (7) and a pipe plug (8),
the inner rod (5) is a cylinder with a tubule arranged at the lower part;
the water storage core (6) is assembled inside the inner rod (5), and the water storage core (6) stores ink;
the pen point (7) is assembled at the top of the inner rod (5), the rear part of the pen point (7) is inserted into the water storage core (6) so as to achieve the ink guiding effect, and the pen point (7) is provided with a step positioning assembly position;
the pipe plug (8) is assembled at the top of the inner rod (5) so as to seal the water storage core (6), and the pipe plug (8) can be detached so as to be convenient for replacing the water storage core (6);
the actuation mechanism includes a first actuation unit including: a guide rail (2), a rotating wheel (3), a press head (4) and a telescopic spring (13),
the guide rail (2) is provided with an elastic buckling point (2 a), the guide rail (2) is assembled in the pen holder through groove (1 b) through the elastic buckling point (2 a), and the guide rail (2) is provided with a guide groove (2 b);
the rotating wheel (3) is provided with a rotating wheel boss (3 a) so as to be assembled in the guide groove (2 b), the top of the rotating wheel (3) is provided with a tooth shape corresponding to the bottom of the guide rail (2), and the rotating wheel (3) is assembled at the middle step (5 a) of the inner rod in the inner rod;
a press head boss (4 a) is arranged on the press head (4) so as to be assembled in the guide groove (2 b), a tooth shape corresponding to the top of the rotating wheel (3) is arranged at the bottom of the press head (4), and the press head (4) is assembled at the top of the pen holder (1);
the telescopic spring (13) is assembled at the bottom of the inner rod (5), and the telescopic spring (13) can elastically return the inner rod (5) to the initial position;
the actuation mechanism includes a second actuation unit including: a guide (10), a sealing seat (11) and a lining (12),
the guide piece (10) is assembled at the lower part of the inner rod (5), two through headspace grooves (10 a) and two non-through headspace grooves (10 b) are respectively arranged at the quartering positions of the guide piece (10), and the opening of the through headspace groove (10 a) is in a bottleneck shape;
the sealing seat (11) is assembled inside the guide piece (10) along the through-head empty groove (10 a) through a sealing seat semicircular boss (11 b), two straight-section rib positions (11 c) extend on the sealing seat semicircular boss (11 b), the sealing seat semicircular boss (11 b) is matched with steps at corresponding positions inside the pen holder (1) to fix the sealing seat (11), the tops of the straight-section rib positions (11 c) are connected through a circular ring structure, and a circular through hole is formed in the middle of the sealing seat (11);
the sealing mechanism comprises a transmission part and a sealing valve (9), wherein the sealing valve (9) is provided with the communication hole, and the sealing valve (9) is connected with the transmission part through a fixing feature on the transmission part;
the lining (12) seals a gap between the sealing valve (9) and the sealing seat (11), and the lining (12) is made of a flexible material;
the sealing valve (9) is a sphere with a hollowed-out middle part, the hollowed-out middle part forms a cylindrical communication hole,
the transmission part is a sealing valve gear (9 a), the sealing valve gear (9 a) is matched with a tooth-shaped part formed on the bottom of the guide piece (10),
the fixed feature is a cylindrical feature (9 b), and the cylindrical feature (9 b) is assembled in a concave lug (11 a) arranged at the bottom of the sealing seat (11);
the middle part of inside lining (12) has circular through-hole, the flexible material of inside lining (12) is rubber, the inside lining is equipped with bottom step (12 a) in its bottom, the diameter of bottom step is greater than sealing seat (11) circular through-hole's diameter, the external diameter of the cylindrical section of inside lining (12) with sealing seat (11) circular through-hole's hollow diameter cooperatees.
2. The knock writing instrument with an automatic sealing device according to claim 1, characterized in that an inner rod boss (5 b) is provided on the inner rod (5) to be fitted in the dead head space (10 b), an inner rod triangle boss (5 c) is provided on the inner rod (5), an initial position of the inner rod triangle boss (5 c) is above the dead head space (10 a), and a bottom side of the inner rod triangle boss (5 c) is longer than a bottleneck-shaped gap of the dead head space (10 a).
3. A knock-type writing instrument with automatic sealing device according to claim 1, characterized in that in the sealed state the communication hole of the sealing valve (9) is vertically offset by 90 ° from the circular through hole of the lining (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626375.1A CN110202977B (en) | 2019-07-11 | 2019-07-11 | Press writing tool with automatic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626375.1A CN110202977B (en) | 2019-07-11 | 2019-07-11 | Press writing tool with automatic sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110202977A CN110202977A (en) | 2019-09-06 |
| CN110202977B true CN110202977B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910626375.1A Active CN110202977B (en) | 2019-07-11 | 2019-07-11 | Press writing tool with automatic sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110202977B (en) |
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| JP2010195036A (en) * | 2009-01-30 | 2010-09-09 | Pentel Corp | Delivery type writing utensil |
| JP2009179066A (en) * | 2009-05-20 | 2009-08-13 | Pentel Corp | Retractable writing utensil |
| JP2015037865A (en) * | 2013-07-17 | 2015-02-26 | 三菱鉛筆株式会社 | Writing instrument |
| CN210501977U (en) * | 2019-07-11 | 2020-05-12 | 上海晨光文具股份有限公司 | Pressing writing tool with automatic sealing device |
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