Pen with replaceable ink container
Through the threaded connection design of the ink gallbladder jacket and the pen holder, the inconvenience of replacing the ink gallbladder in traditional fountain pens is solved, and the simplified replacement and smooth ink output of the ink gallbladder are achieved.
Patent Information
- Application Number
- CN202422351170.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The traditional replaceable ink gall pen is inconvenient to operate when replacing the ink gall, and it is easy to cause incomplete insertion of the ink gall, affecting smooth ink output.
The threaded connection design of the ink gallbladder jacket and the pen holder is adopted. The elastic clamping jaw shrinks and clamps or loosens the ink gallbladder during the screwing in or out process, and combines the connection or separation action between the pen holder and the pen head, so as to achieve simple replacement and accurate insertion of the ink gallbladder.
It realizes simple installation, disassembly and replacement of ink gallbladder, ensuring accurate insertion and smooth ink output.
Smart Images
Figure CN223148069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fountain pens, in particular to a replaceable ink cartridge type fountain pen. Background Art
[0002] When replacing the ink cartridge of a traditional replaceable ink cartridge type fountain pen, first twist open the pen barrel to expose the ink inlet tube at the rear end of the pen neck, and then insert the front end of the ink cartridge into the ink inlet tube at the rear end of the pen neck. Since the interference value required for the water sealing bead at the front end of the ink cartridge is relatively large, a relatively large force is required to push it in, which is inconvenient to operate. Sometimes, due to the ink cartridge not being accurately pushed to the end face at the rear end of the pen neck, the insertion is incomplete, affecting ink output, resulting in unsmooth ink output from the nib and being unfavorable for writing. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a replaceable ink cartridge type fountain pen that can not only facilitate the installation, disassembly and replacement of the ink cartridge, but also ensure that the ink cartridge is accurately inserted in place.
[0004] To achieve the above purpose, the utility model adopts the following scheme:
[0005] A replaceable ink cartridge type fountain pen, which includes a pen barrel, a tail cap, an ink cartridge, a pen neck and a pen tongue; the front end of the pen barrel is connected to the rear end of the pen neck, a partition is provided in the pen neck, the partition divides the inner cavity of the pen neck into a first chamber for inserting the pen tongue and a second chamber for inserting the ink cartridge, an ink inlet tube is provided at the rear end of the pen tongue, and the ink inlet tube passes through the partition and extends into the second chamber to be inserted into the ink cartridge; a cartridge clip sleeve is fixedly provided at the front end of the tail cap, a plurality of through grooves are provided on the side of the cartridge clip sleeve, the through grooves are arranged circumferentially around the cartridge clip sleeve and extend axially, the front end of the through groove is an opening, an elastic clamping claw is formed between two adjacent through grooves, an external thread is provided on the outer side of the root or the front end of the elastic clamping claw, and an internal thread for threadedly connecting with the external thread is provided on the inner wall of the pen barrel. When the cartridge clip sleeve is screwed into the pen barrel, the elastic clamping claw is squeezed and contracted by the inner wall of the pen barrel to clamp the ink cartridge arranged in the pen barrel.
[0006] As a preferred scheme of the utility model, when the external thread is provided on the outer side of the root of the elastic clamping claw, a large-diameter pipe section and a small-diameter pipe section are sequentially arranged in the inner cavity of the pen barrel from the rear end to the front end, the aperture of the large-diameter pipe section is larger than the maximum outer diameter of the elastic clamping claw in the free opening state, and the aperture of the large-diameter pipe section matches the outer diameter of the elastic clamping claw when clamping the ink cartridge; a smooth transition is provided between the large-diameter pipe section and the small-diameter pipe section; the internal thread is provided on the large-diameter pipe section.
[0007] As a preferred scheme of the utility model, a rib is provided on the outer side of the front end of the elastic clamping claw and arranged circumferentially around the cartridge clip sleeve.
[0008] As a preferred embodiment of the present utility model, the cross-sectional shape of the rib is semi-circular.
[0009] As a preferred embodiment of the present utility model, when the external thread is provided on the outer side of the front end of the elastic clamping jaw, the inner cavity of the pen barrel is provided with a conical surface that gradually contracts from the rear end to the front end, and the internal thread is provided on the conical surface.
[0010] As a preferred embodiment of the present utility model, a first limiting step that can abut against the rear end of the ink cartridge is provided on the inner side of the elastic clamping jaw.
[0011] As a preferred embodiment of the present utility model, a second limiting step that can abut against the rear end of the pen barrel is provided at the front end of the tail cap.
[0012] As a preferred embodiment of the present utility model, anti-slip patterns are provided on the outer periphery of the tail cap.
[0013] As a preferred embodiment of the present utility model, the front end of the pen barrel is threadedly connected to the rear end of the pen tip.
[0014] As a preferred embodiment of the present utility model, an observation window is provided on the side wall of the pen barrel.
[0015] Implementing the replaceable ink cartridge fountain pen provided by the present utility model, compared with the prior art, its beneficial effects are as follows:
[0016] For the replaceable ink cartridge fountain pen of the present utility model, by loading the ink cartridge on the ink cartridge clip and through the threaded connection relationship between the ink cartridge clip and the pen barrel, the elastic clamping jaws on the ink cartridge clip can contract and clamp the ink cartridge or expand and loosen the ink cartridge during the process of screwing into or out of the pen barrel, facilitating the installation, disassembly and replacement of the ink cartridge; in addition, when the ink cartridge is clamped by the ink cartridge clip, it can be connected to the pen barrel as a whole, and during the connection or separation process of the pen barrel and the pen tip, it can drive the ink cartridge to be inserted into the ink inlet tube at the rear end of the pen tip or pulled out from the ink inlet tube at the rear end of the pen tip. The operation is simple and labor-saving, and it can also accurately push the front end of the ink cartridge to the end face at the rear end of the pen tip to ensure smooth ink output. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the assembly drawing of the replaceable ink cartridge fountain pen provided by the embodiment of the present utility model;
[0018] Figure 2 is the exploded view of the replaceable ink cartridge fountain pen provided by the embodiment of the present utility model;
[0019] Figure 3 is the cross-sectional view of the pen tip and the pen tongue after assembly in the embodiment of the present utility model;
[0020] Figure 4It is a cross-sectional view of the pen barrel, tail cap, ink cartridge clip and ink cartridge after assembly in the embodiment of the present utility model;
[0021] Figure 5 It is a schematic structural diagram of the tail cap and the ink cartridge clip in another embodiment of the present utility model;
[0022] Figure 6 It is a cross-sectional view of the pen barrel, tail cap, ink cartridge clip and ink cartridge after assembly in another embodiment of the present utility model.
[0023] Reference numerals:
[0024] Pen barrel 1; internal thread 11; tapered surface 12; large-aperture pipe section 13; small-aperture pipe section 14; observation window 15; tail cap 2; second limiting step 21; anti-slip pattern 22; ink cartridge 3; pen tip 4; partition 41; first chamber 42; second chamber 43; pen tongue 5; ink inlet pipe 51; ink cartridge clip 6; through slot 61; elastic clamping jaw 62; external thread 63; first limiting step 64; rib 65. Detailed implementation manners
[0025] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0027] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0028] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0029] Such as Figures 1 to 6As shown in the figure, a replaceable ink cartridge fountain pen provided by an embodiment of the present utility model includes a pen barrel 1, a tail cap 2, an ink cartridge 3, a pen neck 4 and a nib 5; the front end of the pen barrel 1 is connected to the rear end of the pen neck 4, a partition 41 is provided in the pen neck 4, and the partition 41 divides the inner cavity of the pen neck 4 into a first chamber 42 for the nib 5 to be inserted and a second chamber 43 for the ink cartridge 3 to be inserted. An ink inlet tube 51 is provided at the rear end of the nib 5, and the ink inlet tube 51 passes through the partition 41 and extends into the second chamber 43 and is inserted into the ink cartridge 3; a cartridge clip sleeve 6 is fixedly provided at the front end of the tail cap 2, and a plurality of through slots 61 are provided on the side of the cartridge clip sleeve 6, which are arranged circumferentially around the cartridge clip sleeve 6 and extend axially. The front end of the through slot 61 is an opening, and elastic clamping claws 62 are formed between two adjacent through slots 61. External threads 63 are provided on the outer side of the root or the front end of the elastic clamping claws 62, and internal threads 11 are provided on the inner wall of the pen barrel 1, which are threadedly connected to the external threads 63. When the cartridge clip sleeve 6 is screwed into the pen barrel 1, the elastic clamping claws 62 are squeezed and contracted by the inner wall of the pen barrel 1 to clamp the ink cartridge 3 provided in the pen barrel 1.
[0030] When the ink cartridge 3 needs to be replaced, first separate the pen barrel 1 from the pen neck 4. At this time, the ink cartridge 3 in the pen barrel 1 is clamped by the cartridge clip sleeve 6, so that it is pulled out together when the pen barrel 1 is removed, realizing the separation of the ink cartridge 3 from the ink inlet tube 51; then unscrew the tail cap 2 to move the tail cap 2 backward relative to the pen barrel 1. The cartridge clip sleeve 6 gradually expands and loosens the ink cartridge 3 during the backward movement of the tail cap 2 until the ink cartridge 3 can be directly poured out from the pen barrel 1; then, insert a new ink cartridge 3 into the cartridge clip sleeve 6, and then screw in the tail cap 2 to drive the cartridge clip sleeve 6 and the ink cartridge 3 to move forward relative to the pen barrel 1 together. The elastic clamping claws 62 of the cartridge clip sleeve 6 are gradually squeezed and contracted by the inner wall of the pen barrel 1 during its forward movement to clamp the ink cartridge 3 until the front end of the ink cartridge 3 abuts against the rear end face of the pen neck 4, completing the replacement of the fountain pen ink cartridge 3.
[0031] Therefore, by implementing a replaceable ink cartridge fountain pen provided by an embodiment of the present utility model, the ink cartridge 3 is loaded on the cartridge clip sleeve 6, and through the threaded connection relationship between the cartridge clip sleeve 6 and the pen barrel 1, the elastic clamping claws 62 on the cartridge clip sleeve 6 can contract and clamp the ink cartridge 3 or expand and loosen the ink cartridge 3 during the process of screwing into or out of the pen barrel 1, facilitating the installation, disassembly and replacement of the ink cartridge 3; in addition, when the ink cartridge 3 is clamped by the cartridge clip sleeve 6, it can be connected to the pen barrel 1 as a whole. During the connection or separation process of the pen barrel 1 and the pen neck 4, the ink cartridge 3 can be driven to be inserted into or pulled out from the ink inlet tube 51 at the rear end of the pen neck 4. The operation is simple and labor-saving, and the front end of the ink cartridge 3 can be accurately pushed to the rear end face of the pen neck 4 to ensure smooth ink output.
[0032] Such as Figure 2 and Figure 4As shown, when the external thread 63 is provided on the outer side of the root of the elastic jaw 62, the inner cavity of the pen barrel 1 is provided with a large-diameter pipe section 13 and a small-diameter pipe section 14 arranged in sequence from the rear end to the front end. The diameter of the large-diameter pipe section 13 is larger than the maximum outer diameter of the elastic jaw 62 in the freely opened state, and the diameter of the large-diameter pipe section 13 matches the outer diameter of the elastic jaw 62 when clamping the ink cartridge 3; the large-diameter pipe section 13 and the small-diameter pipe section 14 are smoothly transitioned; the internal thread 11 is provided on the large-diameter pipe section 13. Thus, when the front end of the elastic jaw 62 smoothly enters the small-diameter pipe section 14 through the large-diameter pipe section 13, the elastic jaw 62 is squeezed and contracted by the inner wall of the small-diameter pipe section 14 to clamp the ink cartridge 3. Until the ink cartridge holder 6 is rotated by driving the end cap 2, so that the external thread 63 provided on the outer side of the root of the elastic jaw 62 is connected to the internal thread 11 of the pen barrel 1, realizing the connection and fixation among the pen barrel 1, the end cap 2 and the ink cartridge 3.
[0033] Further, as Figure 2 and Figure 4 shown, a rib 65 is provided on the outer side of the front end of the elastic jaw 62 along the circumferential direction of the ink cartridge holder 6 to reduce the contact area between the front end of the elastic jaw 62 and the inner wall of the pen barrel 1, reduce the frictional resistance during the insertion of the ink cartridge holder 6, and facilitate assembly. Furthermore, the cross-sectional shape of the rib 65 is semi-circular, so that the front end of the elastic jaw 62 enters the small-diameter pipe section 14 more smoothly and smoothly.
[0034] As Figure 5 and Figure 6 shown, when the external thread 63 is provided on the outer side of the front end of the elastic jaw 62, the inner cavity of the pen barrel 1 is provided with a tapered surface 12 gradually contracting from the rear end to the front end, and the internal thread 11 is provided on the tapered surface 12. Thus, when the front end of the elastic jaw 62 enters the tapered surface 12, the elastic jaw 62 is squeezed and contracted by the tapered surface 12 to clamp the ink cartridge 3. At the same time, the ink cartridge holder 6 is rotated by driving the end cap 2, so that the external thread 63 provided on the outer side of the front end of the elastic jaw 62 is connected to the internal thread 11 of the pen barrel 1, realizing the connection and fixation among the pen barrel 1, the end cap 2 and the ink cartridge 3.
[0035] Exemplarily, as Figure 4 and Figure 6 shown, to ensure the protruding length of the ink cartridge 3 at the front end of the pen barrel 1 and accurately push the front end of the ink cartridge 3 to the rear end face of the pen tip 4, a first limiting step 64 that can abut against the rear end of the ink cartridge 3 is provided on the inner side of the elastic jaw 62; further, a second limiting step 21 that can abut against the rear end of the pen barrel 1 is provided at the front end of the end cap 2.
[0036] Exemplarily, as Figure 1 、 Figure 2 andFigure 5 As shown, anti-slip patterns 22 are provided on the outer periphery of the tail cap 2 to facilitate the application of force by hand.
[0037] Exemplarily, as Figure 2 shown, the front end of the pen barrel 1 is threadedly connected to the rear end of the pen neck 4. Thus, by rotating the pen barrel 1, the ink cartridge 3 fixed therein can be coaxially aligned with the ink inlet tube 51 and generate axial power, realizing the plugging and unplugging action between the ink cartridge 3 and the ink inlet tube 51. The operation is simple and labor-saving, enabling easy and precise replacement of the ink cartridge 3.
[0038] Exemplarily, as Figure 1 、 Figure 2 and Figure 4 shown, an observation window 15 is provided on the side wall of the pen barrel 1 to facilitate the user to check the remaining amount of ink in the ink cartridge without removing the pen barrel.
[0039] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A replaceable ink cartridge fountain pen, characterized in that, It includes a pen barrel, a tail cap, an ink cartridge, a pen neck and a pen tongue; the front end of the pen barrel is connected to the rear end of the pen neck, a partition is provided inside the pen neck, the partition divides the inner cavity of the pen neck into a first chamber for the pen tongue to be inserted and a second chamber for the ink cartridge to be inserted, an ink inlet tube is provided at the rear end of the pen tongue, the ink inlet tube passes through the partition and extends into the second chamber and is inserted with the ink cartridge; a cartridge clip sleeve is fixedly provided at the front end of the tail cap, a plurality of through grooves are provided on the side of the cartridge clip sleeve, which are arranged circumferentially around the cartridge clip sleeve and extend axially, the front end of the through groove is an opening, an elastic clamping jaw is formed between two adjacent through grooves, an external thread is provided on the outer side of the root or the front end of the elastic clamping jaw, and an internal thread is provided on the inner wall of the pen barrel, when the cartridge clip sleeve is screwed into the pen barrel, the elastic clamping jaw is squeezed and contracted by the inner wall of the pen barrel to clamp the ink cartridge arranged in the pen barrel.
2. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, When the external thread is provided on the outer side of the root of the elastic clamping jaw, a large-diameter tube section and a small-diameter tube section are sequentially arranged in the inner cavity of the pen barrel from the rear end to the front end, the diameter of the large-diameter tube section is larger than the maximum outer diameter of the elastic clamping jaw in the free opening state, and the diameter of the large-diameter tube section matches the outer diameter of the elastic clamping jaw when clamping the ink cartridge; the large-diameter tube section and the small-diameter tube section are smoothly transitioned; the internal thread is provided on the large-diameter tube section.
3. The replaceable ink cartridge fountain pen according to claim 2, wherein, A convex rib is provided on the outer side of the front end of the elastic clamping jaw and is arranged along the circumferential direction of the cartridge clip sleeve.
4. The replaceable ink cartridge fountain pen according to claim 3, wherein The cross-sectional shape of the convex rib is semicircular.
5. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, When the external thread is provided on the outer side of the front end of the elastic clamping jaw, a conical surface gradually contracting from the rear end to the front end is provided in the inner cavity of the pen barrel, and the internal thread is provided on the conical surface.
6. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, A first limiting step capable of abutting against the rear end of the ink cartridge is provided on the inner side of the elastic clamping jaw.
7. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, A second limiting step capable of abutting against the rear end of the pen barrel is provided at the front end of the tail cap.
8. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, Anti-slip patterns are provided on the outer periphery of the tail cap.
9. The replaceable ink cartridge fountain pen according to claim 1, wherein The front end of the pen barrel is threadedly connected to the rear end of the pen neck.
10. The replaceable ink cartridge fountain pen according to claim 1, characterized in that, An observation window is provided on the side wall of the pen barrel.