Direct liquid type pen

Abstract

The utility model discloses a direct liquid type pen which comprises a pen holder, a water storage device, a water diversion core, a pen point and a pen point supporting seat, the pen holder comprises an ink storage cavity, the water storage device is inserted into the front portion of the ink storage cavity, the pen point is installed on the pen point supporting seat, the pen point supporting seat is inserted into the front end of the pen holder, the water storage device comprises a through hole, and the water diversion core can penetrate through the through hole. Supporting components are fixedly installed in the ink storage cavity, the supporting components are arranged behind the water storage device at intervals, the ink storage cavity comprises a first part and a second part, and the supporting components comprise a plurality of ink conveying holes communicating the first part and the second part of the ink storage cavity. The rear end of the ink guide core penetrates through the first part of the ink storage cavity and is in abutting limiting fit with the supporting component, and the pen point is in abutting limiting fit with the front end of the ink guide core. Compared with the prior art, the water leading core of the direct liquid type pen is simple in assembly structure and convenient to assemble.

Description

Technical Field

[0001] This utility model relates to a direct-liquid pen. Background Technology

[0002] Direct-liquid ink pens are a common type of pen. Their structure usually consists of a pen barrel, ink reservoir, ink core, pen tip, and pen tip support. The rear of the pen barrel includes an ink reservoir, the ink reservoir is inserted into the front of the pen barrel, the pen tip is mounted on the pen tip support, and the pen tip support is mounted on the front of the pen barrel and located in front of the ink reservoir. The ink core is inserted and positioned on the ink reservoir, and its front end is connected to the rear end of the pen tip, with the rear end inserted into the ink reservoir.

[0003] In the existing direct-liquid pen structure, the water inlet core is inserted into the water reservoir in a loose-to-tight manner for fixation. During the insertion process, the water inlet core is easily inserted too much or too little, which is inconvenient and can easily damage the water inlet core, resulting in a low yield rate. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a direct-liquid pen, which makes the assembly of the water core simpler and more efficient.

[0005] This utility model discloses a direct-liquid pen, comprising a pen barrel, a water reservoir, a water inlet cartridge, a pen tip, and a pen tip support. The pen barrel includes an ink storage chamber for storing ink. The water reservoir is inserted into the front of the ink storage chamber and can be installed through an opening at the front end of the pen barrel. The pen tip is mounted on the pen tip support, which is inserted into the front end of the pen barrel. The water reservoir includes a through hole for the water inlet cartridge to pass through. Supporting components are fixedly installed in the ink storage chamber, and these supporting components are spaced apart behind the water reservoir. The ink storage chamber includes components located between the water reservoir and the supporting components. The pen tip and the pen tip are located behind the supporting member. The supporting member includes multiple ink supply holes that connect the first part and the second part of the ink storage chamber. The rear end of the ink supply core passes through the first part of the ink storage chamber and forms abutment and limiting fit with the supporting member. The pen tip and the front end of the ink supply core form abutment and limiting fit, and the pen tip and the ink supply core form an ink supply connection fit. The multiple ink supply holes allow the ink in the second part to flow into the first part, so that the rear end of the ink supply core located in the first part can contact the ink.

[0006] In the above scheme, the water-guiding core can be inserted into the through hole of the water reservoir during assembly. The support component can limit the water-guiding core to prevent it from being inserted too much. After the water-guiding core is inserted, the pen tip and pen tip support are installed to limit the front end of the water-guiding core and prevent it from shifting. In order to further ensure the ink delivery effect of the water-guiding core, the front and rear ends of the water-guiding core are pressed together by the pen tip and support component during actual implementation, so that the water-guiding core undergoes slight deformation.

[0007] Furthermore, a stepped first limiting groove is provided on the inner peripheral wall of the ink storage cavity. The four edges of the rear end of the support member form a limiting fit with the first limiting groove. An annular positioning rib is also provided on the inner peripheral wall of the ink storage cavity. The positioning rib has an arc-shaped surface, and the four edges of the front end of the support member form a limiting fit with the positioning rib. The support member can be inserted into the ink storage cavity through the opening at the front end of the pen barrel. During the insertion process, when it comes into contact with the arc surface of the positioning rib, a certain pushing force can be applied to cause a certain deformation of the pen barrel or support member, thereby allowing the support member to pass over the positioning rib and engage between the positioning rib and the first limiting groove, forming axial positioning. The structure is simple and easy to install.

[0008] Furthermore, a positioning hole is provided at the axial position of the support member, and multiple ink supply holes are evenly distributed along the circumferential direction of the support member to improve the ink flow effect. The rear end of the water-conducting core is inserted and positioned in conjunction with the positioning hole, which not only limits the rear end of the water-conducting core but also prevents it from wobbling radially.

[0009] As one preferred embodiment, the rear end of the water-guiding core has a tapered portion, the tip of which is inserted into a positioning hole. The tapered structure facilitates the alignment and insertion of the rear end of the water-guiding core and the positioning hole. The tapered surface of the tapered portion abuts against the edge of the positioning hole to limit the position of the water-guiding core.

[0010] In another preferred embodiment, the rear end of the water-conducting core has a protruding post with a diameter narrower than its main body. A stepped surface is formed between the front end of the protruding post and the main body. The rear end of the protruding post has a tapered portion, which facilitates the alignment and insertion of the rear end of the water-conducting core and the positioning hole. The protruding post and the tapered portion are inserted into the positioning hole as a whole. The stepped surface and the supporting member form an abutment and limiting fit, which improves the positioning effect of the rear end of the water-conducting core and the supporting member.

[0011] Furthermore, a steel ball is provided in the ink storage cavity, which can roll in the ink storage cavity to prevent ink condensation and improve ink flow. The rear end of the support member has a notch with a flat bottom wall and a conical wall surrounding the bottom wall. The bottom wall is located at the axial position of the support member. The positioning hole is opened on the bottom wall. Multiple ink supply holes are evenly distributed on the conical wall along the center circumference of the bottom wall. The ink supply holes have a fan-shaped structure. With this structural design, when writing, the steel ball rolls into the notch under the action of gravity, but does not block the ink supply holes, ensuring smooth ink supply.

[0012] Furthermore, the front end of the support member has the same and symmetrical structure as its rear end, which facilitates the production, processing and assembly of the support member, and in particular, makes it less likely to be installed backwards when the support member is installed into the pen barrel.

[0013] Furthermore, a stepped second limiting groove is provided on the inner peripheral wall of the ink storage cavity. The rear periphery of the water reservoir and the second limiting groove form a limiting fit, which facilitates the water reservoir to be inserted into the ink storage cavity from the opening at the front end of the pen barrel. The front end of the water reservoir and the pen tip support form a plug-in positioning fit, which can improve the overall connection effect between the water reservoir, pen barrel, and pen tip support.

[0014] Furthermore, the diameter of the front part of the through hole of the water reservoir is larger than that of the rear part, and the outer diameter of the water-guiding core is slightly smaller than the inner diameter of the front part of the through hole, forming a clearance fit. The outer diameter of the water-guiding core is slightly larger than the inner diameter of the rear part of the through hole, forming a compression fit. The front part of the through hole guides the insertion of the water-guiding core, facilitating its installation. The reliable contact fit between the rear part of the through hole and the water-guiding core prevents excessive ink leakage from the gap between the water-guiding core and the through hole, thereby improving the ink output effect.

[0015] The beneficial effects of this utility model are: compared with the prior art, the installation of the water core is more convenient and faster, which can improve production efficiency, reduce the requirements for production process, and facilitate automated assembly. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of an embodiment of the present utility model;

[0017] Figure 2 This is a partial cross-sectional view of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the water-conducting core according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the water-guiding core according to another embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram showing the fit between the water-guiding core, supporting component, and pen tip support seat in an embodiment of this utility model;

[0021] Figure 6 This is a structural diagram of the support component according to an embodiment of the present utility model. Detailed Implementation

[0022] The structure of the direct-liquid pen in this embodiment of the utility model is as follows: Figure 1-6As shown, the pen includes a pen barrel 1, a water reservoir 2, an ink core 3, a pen tip 4, and a pen tip support 5. The pen barrel 1 includes an ink storage chamber 10 for storing ink. The water reservoir 2 is inserted into the front of the ink storage chamber 10 and can be installed through the opening at the front end of the pen barrel 1. The pen tip 4 is installed on the pen tip support 5, which is inserted into the front end of the pen barrel 1. The water reservoir 2 includes a through hole 21 for the ink core 3 to pass through and be installed. A support member 6 is fixedly installed in the ink storage chamber 10. The support member 6 is spaced apart behind the water reservoir 2. The ink storage chamber 10 includes a first part 101 located between the water reservoir 2 and the support member 6, and a second part 102 located behind the support member 6. The support member 6 includes... The ink supply holes 61 include a first part 101 and a second part 102 of the ink storage chamber 10. The rear end of the water-conducting core 3 passes through the first part 101 of the ink storage chamber 10 and forms abutment and limiting cooperation with the supporting member 6. The pen tip 4 and the front end of the water-conducting core 3 form abutment and limiting cooperation. Specifically, the pen tip 4 is made of fiber material. The front end of the water-conducting core 3 is inserted into the interior of the pen tip 4 to form an ink supply connection with it. At the same time, the pen tip 4 also abuts and cooperates with the front end of the water-conducting core 3. The arrangement of multiple ink supply holes 61 allows the ink in the second part 102 to also flow into the first part 101, so that the rear end of the water-conducting core 3 located in the first part 101 can contact the ink, thereby improving the ink supply effect.

[0023] In the above scheme, during assembly, the water-guiding core 3 can be inserted into the through hole 21 of the water reservoir 2 for installation. The setting of the support member 6 can limit the water-guiding core 3 and prevent the water-guiding core 3 from being inserted too much. After the water-guiding core 3 is inserted, the pen tip 4 and pen tip support 5 are installed to limit the front end of the water-guiding core 3 and prevent the water-guiding core 3 from being displaced. In order to further ensure the ink supply effect of the water-guiding core 3, in actual implementation, the pen tip 4 and the support member 6 are used to press the front and rear ends of the water-guiding core 3 to make the water-guiding core 3 undergo slight deformation.

[0024] The inner peripheral wall of the ink storage cavity 10 is provided with a stepped first limiting groove 11. The rear peripheral edges of the support member 6 form a limiting fit with the first limiting groove 11. The inner peripheral wall of the ink storage cavity 10 is also provided with an annular positioning rib 12. The positioning rib 12 has an arc-shaped surface. The front peripheral edges of the support member 6 form a limiting fit with the positioning rib 12. The support member 6 can be inserted into the ink storage cavity 10 through the opening at the front end of the pen barrel 1. During the insertion process, when it comes into contact with the arc surface of the positioning rib 12, a certain pushing force can be applied to cause a certain deformation of the pen barrel 1 or the support member 6, so that the support member 6 can pass over the positioning rib 12 and be inserted between the positioning rib 12 and the first limiting groove 11 to form axial positioning. The structure is simple and easy to install.

[0025] The support member 6 has a positioning hole 62 axially through its axis, and multiple ink supply holes 61 are evenly distributed around the axis of the support member 6 to improve ink flow. The rear end of the water-conducting core 3 is inserted and positioned in conjunction with the positioning hole 62. In addition to limiting the rear end of the water-conducting core 3, it can also prevent it from wobbling radially.

[0026] In this embodiment, as Figure 3 As shown, the rear end of the water-guiding core 3 has a tapered portion 31, the tip of which is inserted into the positioning hole 62. The tapered structure facilitates the alignment and insertion of the rear end of the water-guiding core 3 and the positioning hole 62. The tapered surface of the tapered portion 31 and the edge of the positioning hole 62 abut against each other to limit the position of the water-guiding core 3.

[0027] In another embodiment, such as Figure 4 As shown, it can also be: the rear end of the water-guiding core 3 has a protruding post 32 with a diameter narrower than its main body, the front end of the protruding post 32 and the main body form a stepped surface, and the rear end of the protruding post 32 has a tapered part, which facilitates the alignment and insertion of the rear end of the water-guiding core 3 and the positioning hole 62. The protruding post 32 and the tapered part are inserted into the positioning hole 62 as a whole. The stepped surface and the support member 6 form an abutment and limiting fit, which improves the positioning effect of the rear end of the water-guiding core 3 and the support member 6.

[0028] The ink storage cavity 10 is equipped with a steel ball 7, which can roll in the ink storage cavity 10 to prevent ink condensation and improve ink flow. The rear end of the support member 6 has a notch 63, which has a flat bottom wall 631 and a conical wall 632 surrounding the bottom wall 631. The bottom wall 631 is located at the axial center of the support member 6. The positioning hole 62 is opened on the bottom wall 631. Multiple ink supply holes 61 are evenly distributed on the conical wall 632 along the center circumference of the bottom wall 631. The ink supply holes 61 have a fan-shaped structure. With this structural design, when writing, the steel ball 7 rolls into the notch 63 under the action of gravity, but does not block the ink supply holes 61, ensuring smooth ink supply.

[0029] The front end of the support member 6 has the same and symmetrical structure as its rear end, which facilitates the production, processing and assembly of the support member 6, and in particular, makes it less likely to be installed backwards when the support member 6 is installed into the pen barrel 1.

[0030] The inner peripheral wall of the ink storage cavity 10 is provided with a stepped second limiting groove 13. The four edges of the rear end of the water reservoir 2 form a limiting fit with the second limiting groove 13, which facilitates the water reservoir 2 to be inserted into the ink storage cavity 10 from the front opening of the pen barrel 1. The front end of the water reservoir 2 has a plug-in part 20, which is used to form a plug-in positioning fit with the pen tip support 5. At the same time, the front end of the plug-in part 20 can also form a limiting fit with the rear end of the pen tip 4, which can improve the overall connection effect between the water reservoir 2, the pen barrel 1, and the pen tip support 5.

[0031] The diameter of the front part of the through hole 21 of the water reservoir 2 is larger than that of the rear part. The outer diameter of the water-guiding core 3 is slightly smaller than the inner diameter of the front part of the through hole 21, and the two form a clearance fit. The outer diameter of the water-guiding core 3 is slightly larger than the inner diameter of the rear part of the through hole 21, and the two form a compression fit. The front part of the through hole 21 guides the insertion of the water-guiding core 3, which facilitates the insertion and installation of the water-guiding core 3. The reliable contact fit between the rear part of the through hole 21 and the water-guiding core 3 can prevent excessive ink leakage from the gap between the water-guiding core 3 and the through hole 21, thereby improving the ink output effect.

[0032] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A direct-liquid pen, comprising a pen barrel, a water reservoir, a water inlet core, a pen tip, and a pen tip support base, wherein the pen barrel includes an ink storage cavity, the water reservoir is inserted into the front part of the ink storage cavity, the pen tip is mounted on the pen tip support base, the pen tip support base is inserted into the front end of the pen barrel, and the water reservoir includes a through hole for the water inlet core to pass through and be installed, characterized in that: A support member is fixedly installed in the ink storage cavity. The support member is spaced apart behind the water reservoir. The ink storage cavity includes a first part located between the water reservoir and the support member, and a second part located behind the support member. The support member includes a plurality of ink supply holes that connect the first part and the second part of the ink storage cavity. The rear end of the ink core passes through the first part of the ink storage cavity and forms an abutting and limiting fit with the support member. The pen tip and the front end of the ink core form an abutting and limiting fit.

2. The direct-liquid pen according to claim 1, characterized in that: The inner peripheral wall of the ink storage cavity is provided with a stepped first limiting groove, and the rear periphery of the supporting member is in a limiting fit with the first limiting groove. The inner peripheral wall of the ink storage cavity is also provided with an annular positioning rib, which has an arc-shaped surface, and the front periphery of the supporting member is in a limiting fit with the positioning rib.

3. The direct-liquid pen according to claim 1, characterized in that: The support member has a positioning hole at its axial center, and multiple ink supply holes are evenly distributed around the circumference of the support member's axis. The rear end of the water core is inserted into the positioning hole for positioning.

4. The direct-liquid pen according to claim 3, characterized in that: The rear end of the water-guiding core has a tapered portion, the tip of which is inserted into a positioning hole, and the tapered surface of the tapered portion abuts against the edge of the positioning hole.

5. The direct-liquid pen according to claim 3, characterized in that: The rear end of the water-conducting core has a protruding post with a diameter narrower than its main body. A stepped surface is formed between the front end of the protruding post and the main body. The rear end of the protruding post has a tapered portion. The protruding post and the tapered portion are integrally inserted into the positioning hole. The stepped surface and the supporting member form an abutment and limiting fit.

6. The direct-liquid pen according to claim 3, characterized in that: The ink storage cavity is equipped with steel balls. The rear end of the support member has a notch with a flat bottom wall and a conical wall surrounding the bottom wall. The bottom wall is located at the axial center of the support member. The positioning hole is opened on the bottom wall. Multiple ink supply holes are evenly distributed on the conical wall along the center circumference of the bottom wall, and the ink supply holes have a fan-shaped structure.

7. The direct-liquid pen according to claim 6, characterized in that: The front end of the support member has the same and symmetrical structure as its rear end.

8. The direct-liquid pen according to claim 1, characterized in that: The inner peripheral wall of the ink storage cavity is provided with a stepped second limiting groove. The rear periphery of the water reservoir and the second limiting groove form a limiting fit. The front end of the water reservoir and the pen tip support form a plug-in positioning fit.

9. The direct-liquid pen according to claim 1, characterized in that: The diameter of the front part of the through hole of the water storage device is larger than that of the rear part. The water inlet core and the front part of the through hole form a clearance fit, while the water inlet core and the rear part of the through hole form a compression fit.

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