Gel pen not prone to ink interruption during writing

Abstract

The utility model discloses a gel pen not easy to cut off ink during writing, which comprises a gel pen main body consisting of a pen holder made of a transparent material, a pen point rotationally connected to one end of the pen holder, a pen cap clamped at the other end of the pen holder, and a pen core arranged in the pen holder, the pen is characterized in that the pen cap comprises a piston seat and a piston rod arranged on the piston seat in a sliding mode, the piston seat is clamped on the pen holder, an inserting hole matched with the pen refill in size is formed in the bottom of the piston seat, and a plurality of vent holes are formed around the periphery of the inserting hole. The two ends of the piston rod are connected with a piston head arranged in the piston seat in a sliding mode and a pressing plate arranged above the piston seat respectively, a disc matched with the inserting hole is arranged in the pen holder, the disc is arranged below the piston seat, and a plurality of through holes matched with the vent holes are formed in the disc. Due to the arrangement of the pen cap structure, the continuity and uniformity of ink output of the pen ink in the pen refill in the writing process can be further improved, and the phenomenon of ink shortage is not prone to occurring in the writing process.

Description

Technical Field

[0001] The utility model relates to the field of gel pens, in particular to a gel pen which is not prone to ink running out during writing. Background Art

[0002] As a very popular writing instrument, gel pens are widely popular due to their smooth writing, fast-drying ink, and wide range of applications. Currently, most common gel pens on the market use a replaceable refill body structure. This pen structure is usually used in conjunction with several refills to meet the needs of long-term use. However, although this pen structure is convenient for replacing refills, the ink in the refills of batch replacements is prone to breakage during long-term storage, resulting in intermittent handwriting, lighter coloring, and even ink breakage. This not only affects the consistency and aesthetics of writing, but also brings inconvenience to users. Traditional methods usually involve repeatedly shaking the pen body or blowing air into the refill at the end of the refill. Although these methods can ensure the smooth discharge of ink in the refill, the refill structure often experiences this phenomenon during initial use after being stored for a long time, affecting the writing experience. Utility Model Content

[0003] The utility model aims to provide a gel pen that is not prone to ink breaking during writing. The gel pen can effectively reduce the probability of ink breaking in the pen core of the pen body and further improve the ink flow continuity and uniformity of the pen core during writing.

[0004] The technical solution adopted by the present invention to solve the above problems is:

[0005] A gel pen that is not prone to running out of ink when writing, comprising a pen body made of a transparent material, a pen head rotatably connected to one end of the pen body, a pen cap clamped at the other end of the pen body, and a pen core arranged inside the pen body, the pen cap comprising a piston seat and a piston rod slidably arranged thereon, the piston seat being clamped on the pen body and having a socket adapted to the size of the pen core at the bottom, and a plurality of air vents surrounding the socket, the two ends of the piston rod being respectively connected to a piston head slidably arranged inside the piston seat and a pressing plate arranged above the piston seat, the pen body being provided with a disc adapted to the socket, the disc being placed below the piston seat and having a plurality of through holes adapted to the air vents.

[0006] Furthermore: the sliding connection between the periphery of the piston rod and the piston seat corresponding to the piston rod is correspondingly arranged using either a matching groove or a threaded structure.

[0007] Furthermore: a pressure gauge is also provided on the piston seat, and the pressure gauge is connected to the internal cavity of the piston seat.

[0008] Furthermore: the number of the vent holes provided on the bottom of the piston seat is half the number of the through holes on the disc.

[0009] Furthermore: a plurality of corresponding groups of pointers are arranged around the periphery of the piston seat and the periphery of the pen shaft below it, and the positions and numbers of the pointers correspond to the vent holes opened at the bottom of the piston seat and the through holes opened on the disc, and a plurality of marking lines are evenly arranged between adjacent pointers on the pen shaft.

[0010] Furthermore: the side wall of the piston seat is provided with knurled patterns.

[0011] Furthermore: a one-way valve is provided in the socket.

[0012] Further: the one-way valve is rotatably arranged in the socket, including a valve seat, a ball and a compression spring. A ventilation pipe is arranged in the valve seat, the compression spring is installed in the ventilation pipe, and the ball is placed at one end of the compression spring and is adapted to be slidably arranged in the ventilation pipe.

[0013] Furthermore: the disc is rotatably arranged in the pen holder and a plurality of grooves are arranged around the side wall corresponding to the opening.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] The utility model relates to a gel pen that is not prone to ink breakage when writing. The pen body structure of the gel pen is a further improvement of the pen cap structure on the basis of the traditional gel pen structure. The setting of the pen cap structure can further improve the consistency and uniformity of the ink discharge from the pen core during the writing process, and the ink breakage phenomenon is not easy to occur during the writing process. In addition, the piston structure setting of the pen cap can maintain a certain air pressure inside the pen core, thereby effectively reducing the probability of the ink in the pen core in the pen body being broken due to long-term non-use. In addition, the pen cap and the pen body structure have high adaptability. The addition of the pen cap structure can effectively reduce the impact on the writing process, ensure the user's comfort. At the same time, the setting of this pen cap structure can also play a certain decompression role during use, improving the user's experience. In addition, the adaptive setting of the socket at the bottom of the piston seat on the pen cap can fix the tail end of the pen core, thereby further improving the fixation stability of the pen core in the pen barrel, and can effectively prevent the internal pen core body from shaking when the neutral pen falls, causing the internal pen oil to be broken or even leaked, etc., meeting different usage environments and usage requirements and improving the stability of the pen core. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a gel pen that is not easy to run out of ink during writing.

[0017] Figure 2 It is an enlarged view of the connection structure between the pen cap and the pen barrel in an embodiment of the present utility model.

[0018] Figure 3-4 It is a structural schematic diagram of a pen cap according to an embodiment of the present utility model.

[0019] Figure 5 It is an enlarged structural view of the piston seat and the one-way valve in the embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the overall structure of the one-way valve according to an embodiment of the present utility model.

[0021] Figure 7 It is an enlarged view of the connection structure between the internal disk 2 of the pen holder and the pen holder in an embodiment of the present utility model.

[0022] Figure numbers: pen body 100, pen tip 101, pen core 102, ring groove 103, pen cap 1, piston seat 11, socket 111, vent 112, retaining ring 113, second ring groove 114, pressure gauge 115, knurled pattern 116, piston rod 12, second retaining ring 121, piston head 13, pressing plate 14, disc 2, opening 21, groove 211, through hole 22, pointer 3, marking line 31, one-way valve 4, valve seat 41, ventilation pipe 411, ball 42, compression spring 43. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0024] See also Figure 1-4 The present embodiment relates to a gel pen that is not prone to running out of ink when writing, comprising a pen body 100 made of a transparent material, a pen head 101 rotatably connected to one end of the pen body 100, a pen cap 1 clamped at the other end of the pen body 100, and a gel pen body composed of a refill 102 arranged inside the pen body 100, the pen cap 1 comprising a piston seat 11 and a piston rod 12 slidably arranged thereon, the piston seat 11 being clamped on the pen body 100 and having a socket 111 adapted to the size of the refill 102 at the bottom, and a plurality of air holes 112 surrounding the socket 111, the two ends of the piston rod 12 being respectively connected to a piston head 13 slidably arranged inside the piston seat 11 and a pressing plate 14 arranged above the piston seat 11, a disc 2 adapted to the socket 111 is arranged inside the pen body 100, the disc 2 is placed below the piston seat 11 and has a plurality of through holes 22 adapted to the air holes 112.

[0025] Specifically in the present embodiment, when the pen body structure of this gel pen is in use, the pen cap 1 can be fixed to one end of the pen barrel 100 by means of the snap ring 113 surrounding the outer periphery of the insertion hole 111 at the bottom of the piston seat 11 and the ring groove 103 on the inner wall of the corresponding position in the pen barrel 100 surrounding the adapting snap ring 113. At the same time, when the adapting refill 102 in the pen barrel 100 is installed, the insertion hole 111 at the bottom of the piston seat 11 is adapted to be inserted into the corresponding opening 21 on the disc 2 in the lower pen barrel 100, and can be adaptably plugged with the tail end of the adapting refill 102 in the pen barrel 100. When in use, the corresponding piston seat 11 that is clamped at one end of the pen barrel 100 by the adapting clamping structure can perform a corresponding rotation process, which can be seen through the transparent The pen barrel 100 is made of a material so that the corresponding vent holes 112 at the bottom of the piston seat 11 correspond to the positions of the through holes 22 on the disc 2, so that the piston rod 12 and the piston head 13 inside the piston seat 11 can be driven to slide upward by lifting the pressing plate 14. Moreover, since the interior of most detachable pen bodies made of this structure usually does not have a certain degree of sealing, when the piston head 13 slides upward, the gas inside and outside the pen barrel 100 corresponding to the periphery of the pen core 102 can enter the piston seat 11 through the through holes 22 of the disc 2 and the vent holes 112 at the bottom of the piston seat 11, thereby completing the suction process of the piston seat 11, and then by rotating the piston seat 11, the vent holes 112 at the bottom thereof are staggered with the positions of the corresponding through holes 22 on the disc 2. The disc 2 is opened, thereby realizing the sealing process of the vent hole 112. At this time, the pressing plate 14 above the piston seat 11 can be pressed to drive the piston rod 12 and the piston head 13 inside the piston seat 11 to slide downward. The corresponding gas in the piston seat 11 can enter the interior of the pen core 102 through the bottom plug hole 111. The pen oil in the pen core 102 can be properly gathered under a certain air pressure to realize the ink discharge process of the pen oil in the pen core 102. At the same time, the specific pressing force can be determined according to the specific ink discharge situation of the pen oil, ensuring the consistency and uniformity of the ink discharge of the pen oil in the pen core 102. The pen body structure of this gel pen is a further improvement of the pen cap 1 structure on the basis of the traditional gel pen structure. The setting of this pen cap 1 structure can further improve The consistency and uniformity of the ink discharge from the refill 102 during the writing process make it less likely for the ink to break during the writing process. In addition, the piston-type structure of the pen cap 1 can maintain a certain air pressure inside the refill 102, thereby effectively reducing the probability of the ink in the refill 102 in the pen body being broken due to long-term non-use. In addition, the pen cap 1 and the pen body 100 have a high adaptability. The addition of the pen cap 1 structure can effectively reduce the impact on the writing process, ensuring the user's comfort. At the same time, the setting of the pen cap 1 structure can also play a certain decompression role during use, improving the user's experience. In addition, the adaptability of the socket 111 at the bottom of the piston seat 11 on the pen cap 1 can fix the tail end of the refill 102.This further improves the stability of the refill 102 in the pen holder 100, effectively preventing the refill 102 from shaking when the gel pen falls, causing the internal ink to break or even leak out, and meets different usage environments and requirements, thereby improving the stability of the refill 102.

[0026] The sliding connection between the outer periphery of the piston rod 12 and the piston seat 11 corresponding to the piston rod 12 adopts a corresponding structure of a card slot or a thread. The sliding connection between the outer periphery of the piston rod 12 and the piston seat 11 corresponding to the piston rod 12 can be set according to the specific use requirements. Figure 1 or Figure 2 Taking the adaptive slot structure as an example, a plurality of second retaining rings 121 evenly distributed on the periphery of the piston rod 12 and an adaptive second ring groove 114 are provided at the sliding connection corresponding to the piston rod 12 on the piston seat 11 for retaining, so as to retain the sliding process of the piston rod 12 on the piston seat 11 at the corresponding position. The piston rod 12 on the piston seat 11 correspondingly connected with such a structure can further reduce the position deviation of the piston rod 12 during use, and further improve the effect and stability of the piston head 13 in the piston seat 11, while further improving the control effect of the air pressure in the piston seat 11 and reducing the further impact on the pen oil in the refill 102.

[0027] The piston seat 11 is also provided with a pressure gauge 115. Figure 4 As shown, the pressure gauge 115 is connected to the internal cavity of the piston seat 11. The piston seat 11 and the adaptive setting of the pressure gauge 115 thereon can further improve the accuracy of the air pressure control in the piston seat 11, and can further reduce the unnecessary damage to the pen core 102 caused by excessive or insufficient air pressure and the impact on the use effect of the piston seat 11. In addition, the pressure gauge 115 can be set with a miniature pressure gauge 115 while ensuring a certain degree of stability in use, and can be rotatably set at the corresponding position of the piston seat 11, thereby further reducing the adverse effects on the writing process of this kind of neutral pen and improving the comfort during use.

[0028] The number of the vent holes 112 on the bottom of the piston seat 11 is half of the number of the through holes 22 on the disc 2. Figure 2 and Figure 3 It can be seen that the corresponding vent holes 112 and through holes 22 are set in this way, so that during the rotation of the piston seat 11, the bottom vent holes 112 thereof are matched with the number of through holes 22 on the lower disc 2, which can further improve the flowability and sealing of the gas in the piston seat 11, and can further improve the adjustment flexibility and convenience of the piston seat 11 during rotation.

[0029] See also Figure 2 , the periphery of the piston seat 11 and the periphery of the pen barrel 100 below it are surrounded by corresponding multiple groups of pointers 3, and the positions and number of the pointers 3 correspond to the vent holes 112 opened at the bottom of the piston seat 11 and the through holes 22 opened on the disc 2, respectively. A number of marking lines 31 are evenly arranged between adjacent pointers 3 on the pen barrel 100. During the rotation adjustment process of the piston seat 11, the periphery of the piston seat 11 cooperates with the arrangement of the corresponding multiple groups of pointers 3 on the periphery of the pen barrel 100 below it and the number of marking lines 31 evenly arranged between adjacent pointers 3 on the pen barrel 100. The specific position of the corresponding pointer 3 on the periphery of the piston seat 11 relative to the pointer 3 on the periphery of the pen barrel 100 and the corresponding number of marking lines 31 can be used to judge the coordination between the vent holes 112 in the base of the piston seat 11 and the corresponding through holes 22 on the disc 2, thereby further improving the accuracy and flexibility of the rotation adjustment process of the piston seat 11.

[0030] The side wall of the piston seat 11 is provided with a knurled pattern 116. Figure 2 It can be seen that the arrangement of the knurled pattern 116 on the side wall of the piston seat 11 can facilitate the rotation of the piston seat 11 while further improving the operability during the rotation process and enhancing the user experience during use.

[0031] The one-way valve 4 is provided in the socket 111. When the piston head 13 in the piston seat 11 inhales air, the socket 111 at the bottom of the piston seat 11 can seal the inside of the socket 111 under the action of the one-way valve 4, and the gas can only flow through the multiple air vents 112 at the bottom of the piston seat 11. At the same time, when the piston seat 11 exhausts air through the piston head 13 inside it, the multiple air vents 112 are closed by the adaptive rotation of the piston seat 11. The one-way valve 4 is opened under a certain air pressure in the piston seat 11, thereby allowing the gas to pass into the pen core 102. The addition of the one-way valve 4 can achieve one-way conduction of the socket 111, thereby further improving the effect of the pen cap 1 and effectively preventing the piston seat 11 from leaking the ink in the pen core 102 through the socket 111 during the inhalation process, thereby improving the efficiency and stability of the pen cap 1.

[0032] See also Figure 5-6The one-way valve 4 is rotatably arranged in the socket 111, and includes a valve seat 41, a ball 42 and a compression spring 43. A ventilation pipe 411 is provided in the valve seat 41, and the compression spring 43 is installed in the ventilation pipe 411. The ball 42 is placed at one end of the compression spring 43 and is adapted to be slidably arranged in the ventilation pipe 411. When the one-way valve 4 is installed and used, the ball 42 in the ventilation pipe 411 on the valve seat 41 can slide upward along the ventilation pipe 411 under the action of the compression spring 43, and when the piston seat 11 is inhaled, the ventilation pipe 411 on the valve seat 41 can be sealed, thereby making the piston The bottom socket 111 of the seat 11 is sealed, and when the piston seat 11 is exhausted, the ball 42 on the ventilation pipe 411 can slide downward to a certain distance along the ventilation pipe 411 under a certain air pressure, thereby opening the ventilation pipe 411 in the valve seat 41, and realizing the exhaust process of the bottom socket 111 of the piston seat 11. The one-way valve 4 with such a structure has a simple overall structure and is relatively stable and convenient to use. The valve seat 41 of the one-way valve 4 and the socket 111 can be rotatably connected with an adaptive threaded structure, which is convenient for the installation, disassembly and replacement of the one-way valve 4 to meet different usage requirements.

[0033] See also Figure 7 The disc 2 is rotatably arranged in the pen body 100 and a plurality of grooves 211 are arranged around the side wall of the corresponding opening 21. The disc 2 and the corresponding position in the pen body 100 can be connected by a matching threaded structure, so that the disc 2 can be connected and fixed at the corresponding position in the pen body 100, and the plurality of grooves 211 on the side wall of the opening 21 can facilitate the installation and removal process of the disc 2, further improving the detachability of the gel pen body and improving the flexibility and convenience during use.

[0034] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A gel pen that is not prone to running out of ink, comprising a pen body made of a transparent material, a pen head rotatably connected to one end of the pen body, a pen cap fixed to the other end of the pen body, and a refill disposed within the pen body, the pen body comprising: The pen cap includes a piston seat and a piston rod slidably arranged on it. The piston seat is clamped on the pen body and has a socket adapted to the size of the pen core at the bottom, and a plurality of ventilation holes are surrounded by the socket. The two ends of the piston rod are respectively connected to the piston head slidably arranged inside the piston seat and the pressing plate arranged above the piston seat. A disc adapted to the socket is arranged inside the pen body. The disc is placed below the piston seat and has a plurality of through holes adapted to the ventilation holes.

2. The gel pen that is not easy to run out of ink according to claim 1, characterized in that: The sliding connection between the periphery of the piston rod and the piston seat corresponding to the piston rod adopts a corresponding arrangement of either a slot or a thread.

3. The gel pen that is not easy to break down when writing according to claim 2, characterized in that: The piston seat is also provided with a pressure gauge, which is connected to the internal cavity of the piston seat.

4. The gel pen that is not prone to ink breaking as claimed in claim 1, characterized in that: The number of the vent holes provided on the bottom of the piston seat is set to be half of the number of the through holes on the disc.

5. The gel pen that is not prone to ink breaking as claimed in claim 4, characterized in that: Corresponding groups of pointers are arranged around the periphery of the piston seat and the pen shaft below it, and the positions and numbers of the pointers correspond to the vent holes at the bottom of the piston seat and the through holes on the disc. Several marking lines are evenly arranged between adjacent pointers on the pen shaft.

6. The gel pen that is not prone to ink breaking as claimed in claim 1, characterized in that: The side wall of the piston seat is provided with knurling patterns.

7. The gel pen that is not prone to ink breaking as claimed in claim 1, characterized in that: A one-way valve is arranged in the socket.

8. The gel pen that is not prone to ink breaking as claimed in claim 7, characterized in that: The one-way valve is rotatably arranged in the socket, and includes a valve seat, a ball and a compression spring. A ventilation pipe is arranged in the valve seat, the compression spring is installed in the ventilation pipe, and the ball is placed at one end of the compression spring and is adapted to be slidably arranged in the ventilation pipe.

9. The gel pen that is not prone to ink breaking as claimed in claim 1, characterized in that: The disc is rotatably arranged in the pen holder and a plurality of grooves are arranged around the side wall corresponding to the opening.

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