Pen with airtight pen cap

Abstract

The utility model discloses a pen with an airtight pen cap, which comprises a pen, the lower end of the pen is sleeved with a supporting ring, the lower end of the pen is fixedly connected with a connecting sleeve, the lower end of the pen is fixedly provided with an ink bag, and the outer side of the connecting sleeve is sleeved with a sealing ring. Due to the design of the observation sleeve, the storage amount of ink in the ink bag can be conveniently observed in real time so that the ink can be added in time, and due to the design of the sealing ring, the friction force of the upper end of the pen cap can be increased, and the phenomenon that normal use is affected due to rotation and looseness of the pen cap during use is prevented; by sleeving the lantern ring on the outer side of the fixed shaft and rotating and screwing the threaded ring, the correction tape is convenient to fixedly mount, after a user writes a wrong character by using the pen, the correction tape can be pulled open to be adhered to the surface of the wrong character so as to facilitate re-writing, and the lantern ring can be pressed by the design of the threaded ring to be fixed on the pen cap, so that the correction tape is prevented from loosening and falling off during carrying.

Description

Technical Field

[0001] The utility model relates to the technical field of pen devices, in particular to a pen with an airtight pen cap. Background Art

[0002] Fountain pens are one of the most widely used writing tools. During the use of fountain pens, the pen is easily affected by many factors such as the use environment and the way it is used, which leads to the problem of unsmooth writing. In the interval between writing, sometimes people forget to put the pen cap on, and when they use it again after a period of time, they often cannot write. Since the nib of the fountain pen is exposed, the ink at the tongue of the pen is exposed to the air for a period of time or is not used for a long time, which can easily cause the ink to dry up, resulting in less ink contact with the nib, reducing the intermittent writing ability of the fountain pen. One reason for the ink break phenomenon is that there is a gap between the pen cap and the pen clip, which allows air to enter the pen cap and promote the volatilization of the ink at the tongue of the nib of the fountain pen.

[0003] At present, there is an existing utility model for a fountain pen with an airtight pen cap, which can prevent external air from entering the upper cover through the clamping openings on the pen barrel and the positioning block, thereby solving the problem of poor airtightness of such pen clip structure, avoiding the fountain pen from drying out and not producing ink when not used for a long time, ensuring that the fountain pen can produce ink in one stroke, enhancing the user experience of the fountain pen, and effectively preventing the pen clip from shaking too much to the left and right.

[0004] For example, a fountain pen with an airtight pen cap disclosed in the authorization number CN220639347U includes: a pen cap and a pen body, wherein the pen cap includes: a pen cap shell, having a second end facing the first end and plugged into the pen body, and a first plug hole is provided on the side of the pen cap shell; a positioning block is arranged in the pen cap shell, and a second plug hole connected to the first plug hole is provided on the side of the positioning block, and an annular internal thread is provided on the inner circumference of the positioning block; a pen clip includes an insertion part and a clamping rod part connected to each other, and the insertion part is inserted into the pen cap shell from the first plug hole and the second plug hole; a tightening screw is arranged on the side of the insertion part facing the second end, and the annular external thread of the tightening screw is screwed with the internal thread of the positioning block; and a tower spring, elastically supported between the insertion part and the tightening screw, and the tower spring simultaneously provides a biasing force to the insertion part and the tightening screw of the pen clip to limit the pen clip and press the external thread of the tightening screw to the internal thread of the positioning block. However, such a fountain pen with an airtight pen cap is not convenient for observing the ink volume of the ink sac in real time, and is not convenient for rewriting wrong characters.

[0005] It can be seen from the solutions disclosed in the above-mentioned existing patent documents that it is inconvenient to observe the ink level of the ink bag in real time, and it is inconvenient to rewrite the wrong characters. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The utility model aims to provide a fountain pen with an airtight pen cap, so as to solve the problems of inconvenience in real-time observation of the ink volume of the ink bag and inconvenience in rewriting wrong characters.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fountain pen with an airtight pen cap, comprising a fountain pen, a supporting ring sleeved on the lower end of the fountain pen, a connecting sleeve fixedly connected to the lower end of the fountain pen, an ink bag fixedly installed on the lower end of the fountain pen, a sealing ring sleeved on the outer side of the connecting sleeve, a pen cap fixedly welded on the lower end face of the sealing ring, an observation sleeve fixedly welded on the middle part of the pen cap, a fixed shaft fixedly welded on the lower end of the pen cap, a sleeve ring sleeved on the outer side of the fixed shaft, a correction tape wrapped around the outer side of the sleeve ring, and a threaded ring connected to the outer side of the fixed shaft via a thread.

[0008] Preferably, the outer side of the connecting sleeve is connected to the pen cover via a thread, and the outer side of the ink bag is sleeved with the pen cover, and the sealing ring is driven to be close to the supporting ring by rotating the pen cover thread to connect the connecting sleeve, so that the observation sleeve can be installed quickly and conveniently.

[0009] Preferably, an ink bag is sleeved inside the connecting sleeve, and an observation sleeve is sleeved outside the ink bag. The design of the observation sleeve can facilitate real-time observation of the ink storage amount inside the ink bag so as to add ink in time.

[0010] Preferably, the inner fixed sleeve of the support ring is connected with a connecting sleeve, and the lower end of the support ring is in close contact with the sealing ring. The design of the sealing ring can increase the friction force on the upper end of the pen cover to prevent the pen cover from rotating loose during use and affecting normal use.

[0011] Preferably, a threaded ring is tightly attached to the lower end of the sleeve, and the ink bag is made of rubber material. The correction tape can be conveniently fixed and installed by inserting the sleeve into the outside of the fixed shaft and rotating and tightening the threaded ring.

[0012] Preferably, a pen cap is sleeved on the upper end of the fountain pen, and a non-slip rubber sleeve is arranged on the outer side of the upper end of the fountain pen. When a user makes a mistake in writing with the fountain pen, the user can pull open the correction tape and stick it on the surface of the mistake in order to rewrite.

[0013] Preferably, the upper end of the collar is in close contact with the pen cap, and the pen cap is made of polyethylene material. The design of the threaded ring can press the collar to fix the pen cap to prevent it from loosening and falling when carrying.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model drives the sealing ring to be close to the supporting ring by rotating the pen cover thread, so as to facilitate the quick installation of the observation cover. The design of the observation cover can facilitate the real-time observation of the ink storage amount inside the ink bag so as to add the ink in time. The design of the sealing ring can increase the friction force on the upper end of the pen cover to prevent the pen cover from rotating loose during use and affecting normal use.

[0016] 2. The utility model inserts the sleeve ring into the outside of the fixed shaft, rotates and tightens the threaded ring, and conveniently fixes and installs the correction tape. When the user makes a mistake in writing with a fountain pen, the correction tape can be pulled open and adhered to the surface of the mistake in order to rewrite. The design of the threaded ring can press the sleeve ring to fix it on the pen cover to prevent it from loosening and falling when carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an enlarged cross-sectional view of the observation sleeve of the utility model;

[0019] Figure 3 This is an enlarged view of point A of the utility model;

[0020] Figure 4 This is an enlarged view of the correction tape of the utility model.

[0021] In the figure: 1 fountain pen, 11 support ring, 12 connecting sleeve, 13 ink bag, 14 sealing ring, 15 pen cover, 16 observation sleeve, 2 fixed shaft, 21 sleeve ring, 22 correction tape, 23 threaded ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The figure shows a fountain pen with an airtight pen cap, comprising a fountain pen 1, a supporting ring 11 being sleeved on the lower end of the fountain pen 1, a connecting sleeve 12 being fixedly connected to the lower end of the fountain pen 1, an ink bag 13 being fixedly installed on the lower end of the fountain pen 1, a sealing ring 14 being sleeved on the outer side of the connecting sleeve 12, a pen cover 15 being fixedly welded to the lower end face of the sealing ring 14, an observation cover 16 being fixedly welded to the middle part of the pen cover 15, a fixed shaft 2 being fixedly welded to the lower end of the pen cover 15, a sleeve ring 21 being sleeved on the outer side of the fixed shaft 2, a correction tape 22 being wrapped around the outer side of the sleeve ring 21, and a threaded ring 23 being threadedly connected to the outer side of the fixed shaft 2.

[0024] In order to facilitate real-time observation of the ink sac 13, the outer side of the connecting sleeve 12 is connected to the pen sleeve 15 through a thread, and the outer side of the ink sac 13 is sleeved with the pen sleeve 15. By rotating the pen sleeve 15 to thread the connecting sleeve 12, the sealing ring 14 is driven to be close to the support ring 11, so as to facilitate and quickly install the observation sleeve 16. The interior of the connecting sleeve 12 is sleeved with the ink sac 13, and the outer side of the ink sac 13 is sleeved with the observation sleeve 16. The design of the observation sleeve 16 can facilitate real-time observation of the ink storage amount inside the ink sac 13 for timely addition. The interior of the support ring 11 is fixedly sleeved with the connecting sleeve 12, and the lower end of the support ring 11 is close to the sealing ring 14. The design of the sealing ring 14 can increase the friction force on the upper end of the pen sleeve 15 to prevent the pen sleeve 15 from rotating loose during use, thereby affecting normal use.

[0025] In order to facilitate the modification and rewriting of wrong characters, the lower end of the ring 21 is tightly attached to the threaded ring 23. The ink bag 13 is made of rubber material. By inserting the ring 21 into the outside of the fixed shaft 2 and rotating and tightening the threaded ring 23, the correction tape 22 can be conveniently fixed and installed. The upper end of the pen 1 is sleeved with a pen cap, and the outer side of the upper end of the pen 1 is provided with a non-slip rubber sleeve. When the user uses the pen 1 to write a wrong character, the correction tape 22 can be pulled open and adhered to the surface of the wrong character for rewriting. The upper end of the ring 21 is tightly attached to the pen cover 15, and the pen cover 15 is made of polyethylene material. The design of the threaded ring 23 can press the ring 21 to fix it on the pen cover 15 to prevent it from loosening and falling when carrying.

[0026] The pen with an airtight pen cap can be threadedly connected to the connecting sleeve 12 by rotating the pen sleeve 15 to drive the sealing ring 14 to be close to the supporting ring 11, so as to facilitate and quickly install the observation sleeve 16. The design of the observation sleeve 16 can facilitate real-time observation of the ink storage amount inside the ink bag 13 so as to add ink in time. The design of the sealing ring 14 can increase the friction force on the upper end of the pen sleeve 15 to prevent the pen sleeve 15 from rotating and loosening during use, thereby affecting normal use. By inserting the sleeve ring 21 into the outer side of the fixed shaft 2 and rotating and tightening the threaded ring 23, it is convenient to fix and install the correction tape 22. When the user makes a mistake in writing with the pen 1, the correction tape 22 can be pulled open and adhered to the surface of the mistaken word so as to rewrite. The design of the threaded ring 23 can press the sleeve ring 21 to fix it on the pen sleeve 15 to prevent it from loosening and falling when carrying.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fountain pen with an airtight cap, comprising a fountain pen (1), characterized in that: The lower end of the fountain pen (1) is sleeved with a support ring (11), the lower end of the fountain pen (1) is fixedly connected with a connecting sleeve (12), the lower end of the fountain pen (1) is fixedly mounted with an ink bag (13), the outer side of the connecting sleeve (12) is sleeved with a sealing ring (14), the lower end surface of the sealing ring (14) is fixedly welded with a pen sleeve (15), the middle part of the pen sleeve (15) is fixedly welded with an observation sleeve (16), the lower end of the pen sleeve (15) is fixedly welded with a fixed shaft (2), the outer side of the fixed shaft (2) is sleeved with a sleeve ring (21), the outer side of the sleeve ring (21) is wrapped with a correction tape (22), and the outer side of the fixed shaft (2) is connected with a threaded ring (23) via a thread.

2. A fountain pen with an airtight cap according to claim 1, characterized in that: The outer side of the connecting sleeve (12) is connected to the pen sleeve (15) via a thread, and the outer side of the ink bag (13) is sleeved with the pen sleeve (15).

3. A fountain pen with an airtight cap according to claim 1, characterized in that: An ink bag (13) is sleeved inside the connecting sleeve (12), and an observation sleeve (16) is sleeved outside the ink bag (13).

4. A fountain pen with an airtight cap according to claim 1, characterized in that: The support ring (11) is internally fixedly sleeved with a connecting sleeve (12), and the lower end of the support ring (11) is tightly attached to the sealing ring (14).

5. The fountain pen with an airtight cap according to claim 1, characterized in that: A threaded ring (23) is tightly attached to the lower end of the sleeve ring (21), and the ink bag (13) is made of rubber material.

6. The fountain pen with an airtight cap according to claim 1, characterized in that: The upper end of the fountain pen (1) is sleeved with a pen cap, and the outer side of the upper end of the fountain pen (1) is provided with an anti-slip rubber sleeve.

7. The fountain pen with an airtight cap according to claim 1, characterized in that: The upper end of the sleeve ring (21) is in close contact with the pen cover (15), and the pen cover (15) is made of polyethylene material.

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