A fountain pen

Abstract

The application discloses a pen and relates to the field of writing tools, which can avoid the phenomenon that the pen discharges too much ink due to the mis-touch of the adjusting member. The pen comprises a pen shell, an ink cavity is arranged in the pen shell, a movable screw rod member is arranged in the ink cavity, the tail end of the screw rod member extends from the tail part of the pen shell, the tail part of the pen shell is provided with a rotating adjusting member, the adjusting member is in plug-in connection with the tail part of the pen shell, the tail part of the pen shell is provided with a first transmission member in screw connection with the screw rod member, the first transmission member is in rotary connection in the tail part of the pen shell, the adjusting member is fixedly connected with a second transmission member, the adjusting member is pulled out from the tail part of the pen shell to make the second transmission member fixedly connected with the first transmission member, and the adjusting member is inserted into the tail part of the pen shell to make the second transmission member separated from the first transmission member.

Description

Technical Field

[0001] This application relates to the field of writing instruments, and more particularly to a fountain pen. Background Technology

[0002] Spiral fountain pens use a spiral mechanism for filling and dispensing ink. This means that a spiral adjustment part is located at the end of the pen. Rotating the spiral adjustment part clockwise dispenses ink from the pen tip, while rotating it counterclockwise draws ink into the pen tip.

[0003] In actual use, accidentally touching the screw adjustment mechanism can cause it to rotate, resulting in excessive ink flow from the pen and affecting normal writing. Summary of the Invention

[0004] The purpose of this application is to provide a fountain pen in which an adjustment mechanism for controlling the ink filling / dispensing of the pen is pulled out at the tail of the pen casing, so as to avoid the phenomenon of excessive ink dispensing caused by accidental activation of the adjustment mechanism.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a pen, including a pen casing, an ink cavity inside the pen casing, a movable screw in the ink cavity, the tail end of the screw extending from the tail of the pen casing, a rotatable adjusting member at the tail of the pen casing, the adjusting member being plugged into and detached from the tail of the pen casing, a first transmission member screwed into and connected to the screw in the tail of the pen casing, the first transmission member being rotatably connected to the tail of the pen casing, a second transmission member being fixedly connected inside the adjusting member, the adjusting member being pulled out from the tail of the pen casing to fix the second transmission member to the first transmission member, and the adjusting member being inserted into the tail of the pen casing to separate the second transmission member from the first transmission member.

[0006] Compared with existing technologies, the advantages of this application are: even if the adjustment component is accidentally touched, it will not cause excessive ink dispensing from the pen. The adjustment component controlling ink dispensing / filling requires pulling to fix the second transmission component in the adjustment component to the first transmission component on the screw component. Only then can the adjustment component control the movement of the screw component, which in turn controls the ink dispensing / filling of the pen by moving within the ink chamber. The adjustment component is plugged into the end of the pen shell, making it difficult for the adjustment component to manipulate the screw component, thus preventing the pen from easily dispensing ink. After the pen has finished dispensing / filling ink, the adjustment component is pressed into the limit position at the end of the pen shell, separating the first and second transmission components and preventing the adjustment component from moving with the screw component, thus avoiding excessive ink dispensing due to accidental touch of the adjustment component.

[0007] In some embodiments of this application, the tail of the pen shell is provided with a first channel, the adjusting member is movably fitted in the first channel, the inner wall of the first channel is provided with a first inner convex structure along its circumference, the first inner convex structure and the bottom of the first channel are provided with a first limiting ring groove, one end of the adjusting member is provided with an outer convex structure, the outer convex structure is adapted to fit in the first limiting ring groove, and the first inner convex structure has a guide structure for the outer convex structure to disengage from / enter the first limiting ring groove.

[0008] In some embodiments of this application, the pen shell includes a fixing member having a first channel, the adjusting member being plugged into the tail of the pen shell means that the adjusting member is plugged into the first channel of the fixing member, the fixing member having a second channel, and the first transmission member being rotatably connected to the tail of the pen shell means that the first transmission member is rotatably connected to the second channel of the fixing member.

[0009] In some embodiments of this application, the inner wall of the second channel is provided with a second inner convex structure along its circumference, and the outer wall of the first transmission member is provided with a second limiting ring groove along its circumference. The second inner convex structure and the second limiting ring groove are adaptively matched.

[0010] In some embodiments of this application, the second transmission member is sleeved on the first transmission member, the tail end of the first transmission member has a first toothed portion, the second transmission member has a second toothed portion, and the second transmission member is pulled toward the tail end of the first transmission member to engage the first toothed portion with the second toothed portion.

[0011] In some embodiments of this application, the adjusting member has an installation space adapted to the second transmission member, the installation space is provided with a third limiting ring groove, the second transmission member has a convex ring structure that cooperates with the third limiting ring groove, and the second transmission member is fixedly connected in the installation space.

[0012] In some embodiments of this application, the guide structure includes a slope / arc surface disposed on the first convex structure.

[0013] In some embodiments of this application, the pen casing includes a pen barrel, the ink cavity is located in the pen barrel, and the fixing member is screwed to the tail end of the pen barrel.

[0014] In some embodiments of this application, the screw component includes a plug rod and a plug head, the plug head being interference-fitted in the ink cavity, the plug head being integrally connected to the plug rod, the first transmission member being sleeved on the plug rod, and the plug rod being helically sleeved with the first transmission member.

[0015] In some embodiments of this application, the outer peripheral surface of the plug rod is provided with an outer spiral connection portion, and the inner peripheral surface of the first transmission member is provided with an inner spiral connection structure. The rotation of the first transmission member causes the plug rod to spiral in / out. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of this application;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of this application. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the fastener;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the fastener;

[0020] Figure 5 This is a schematic diagram of the connection structure between the adjusting component and the fixing component;

[0021] Figure 6 This is a schematic diagram of the structure during the upward pulling of the adjusting component from the fixed component;

[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the tail section of the pen casing.

[0023] Figure 8 This is a three-dimensional structural diagram of the first transmission component;

[0024] Figure 9 This is a schematic diagram of the connection structure between the adjusting component and the first transmission component;

[0025] Figure 10 This is a schematic diagram of the structure when the first transmission component and the second transmission component are separated.

[0026] Figure 11 This is a schematic diagram of the structure when the first transmission component and the second transmission component are engaged and connected.

[0027] Figure 12 This is a schematic diagram of the cross-sectional structure of this application. Figure 2 .

[0028] In the diagram: 1. Pen casing; 101. Pen holder; 102. Fixing component; 1021. Upper connecting part; 1022. Lower connecting part; 2. Ink cavity; 3. Pen tip; 4. First channel; 5. First inner convex structure; 6. First limiting ring groove; 7. Second channel; 8. Second inner convex structure; 9. Adjusting component; 10. Outer convex structure; 11. Guide structure; 12. First transmission component; 13. Second limiting ring groove; 14. First toothed joint; 15. Inner spiral structure; 16. Second transmission component; 17. Third limiting ring groove; 18. Second toothed joint; 19. Snap-fit ​​part; 20. Screw component; 21. Plug rod; 22. Plug head; 23. Outer spiral structure. Detailed Implementation

[0029] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0031] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0032] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0033] See Figures 1-2 A fountain pen includes a pen case 1, which includes a pen barrel 101 and a fixing member 102. The pen barrel 101 is hollow inside and has an ink chamber 2 for storing ink. The pen barrel 101 is connected to a pen tip 3 at the lower end. The fixing member 102 is disposed at the upper end of the pen barrel 101 and screwed to the upper end of the pen barrel 101.

[0034] See Figure 2 The fastener 102 includes an upper connecting part 1021 and a lower connecting part 1022. The lower connecting part 1022 is sleeved inside the upper end of the pen holder 101. The outer surface of the lower connecting part 1022 is provided with threads. The lower connecting part 1022 is screwed and fixed to the upper end of the pen holder 101.

[0035] See Figures 3-4 The upper connecting part 1021 is provided with a first channel 4. The inner wall of the first channel 4 is provided with a first inner protrusion structure 5 along its circumference. The first inner protrusion structure 5 is in the shape of a convex ring. A first limiting ring groove 6 is provided between the first inner protrusion structure 5 and the bottom of the first channel 4. The lower connecting part 1022 is provided with a second channel 7. The inner wall of the second channel 7 is provided with a second inner protrusion structure 8 in the shape of a convex ring along its circumference.

[0036] See Figures 5-6 The upper connecting part 1021 is connected to an adjusting member 9. The shape of the adjusting member 9 is adapted to the shape of the first channel 4. The adjusting member 9 is inserted into the first channel 4 in a plug-in manner, and can be rotated to allow it to rotate. The lower end of the adjusting member 9 has an outward protruding structure 10, which fits adaptably in the first limiting ring groove 6. The first inner protruding structure 5 has a guide structure 11 for the outward protruding structure 10 to disengage from / enter the first limiting ring groove 6. Pulling the adjusting member 9 upward causes the outward protruding structure 10 to disengage from the first limiting groove. After the adjusting member 9 is pulled upward, pressing it downward allows the outward protruding structure 10 to be engaged in the first limiting groove. The guide structure 11 includes a slope / arc surface provided on the first inner protruding structure 5.

[0037] See Figures 7-8 The second channel 7 contains a rotatable first transmission member 12, which has a bushing structure. The lower part of the outer peripheral surface of the first transmission member 12 has a second limiting ring groove 13 that connects to the second inner convex structure 8. The second limiting ring groove 13 connects to the second inner convex structure 8 to restrict the axial movement of the first transmission member 12. The upper end of the first transmission member 12 has a first toothed part 14, and the inner wall of the first transmission member 12 has an inner spiral structure 15.

[0038] See Figure 6 and Figure 9The adjusting member 9 has an installation space, within which a second transmission member 16 is installed. The installation space also has a third limiting annular groove 17. The second transmission member 16 includes a second toothed portion 18 and a snap-fit ​​portion 19. The snap-fit ​​portion 19 is located within the third limiting annular groove 17. The second transmission member 16 is fixed within the installation space of the adjusting member 9 by connecting the snap-fit ​​portion 19 to the third limiting annular groove 17. The second transmission member 16 is sleeved on the first transmission member 12 and can slide up and down along the first transmission member 12. Pulling the adjusting member 9 upwards causes the second toothed portion 18 of the second transmission member 16 to engage with the first toothed portion 14 of the first transmission member 12, thereby linking the first transmission member 12 and the second transmission member 16.

[0039] See Figure 2 The ink chamber 2 is equipped with a screw 20, which is used to squeeze the ink in the ink chamber 2. When the screw 20 is pressed down, the volume of the ink chamber 2 is reduced so that the ink flows out from the pen tip 3. When the screw 20 slides upward, the volume of the ink chamber 2 can be increased. The pen tip 3 can be used to draw ink from the outside.

[0040] See Figures 10-12 The screw component 20 includes a stopper 21 and a stopper 22. The stopper 22 is interference-fitted into the ink cavity 2. The lower end of the stopper 21 is integrally connected to the stopper 22. The stopper 21 passes through the second channel 7 and connects to the first transmission component 12. The first transmission component 12 is sleeved on the stopper 21. The outer circumferential surface of the stopper 21 is provided with an outer helical structure 23 that is adapted to the inner helical structure 15. The stopper 21 can spirally rise or spirally fall in the first transmission component 12. The upper end of the stopper 21 can pass through the first transmission component 12 and enter the adjusting component 9.

[0041] The first toothed part 14 includes a tooth with a tapered structure, and the second toothed part 18 includes a tooth groove that mates with the tooth. The tooth faces downward and is directly opposite the tooth groove. When the second toothed part 18 moves upward, the tooth groove and the tooth can be engaged and connected.

[0042] Adjusting the ink flow of the pen: First, pull the adjusting member 9 upward. After the protruding structure 10 on the adjusting member 9 disengages from the first limiting ring groove 6, the second toothed part 18 of the second transmission member 16 engages with the first toothed part 14 of the first transmission member 12. Rotate the adjusting member 9 clockwise, so that the adjusting member 9 drives the screw member 20 to spiral down through the first transmission member 12 and the second transmission member 16. The stopper rod 21 squeezes the ink, causing the ink to flow out from the pen tip 3. Finally, press the adjusting member 9 into the fixing member 102, so that the protruding structure 10 of the adjusting member 9 is engaged in the first limiting ring groove 6.

[0043] Adjusting the ink feeding process of the fountain pen: First, pull the adjusting member 9 upward. After the protruding structure 10 on the adjusting member 9 disengages from the first limiting ring groove 6, the second toothed part 18 of the second transmission member 16 engages with the first toothed part 14 of the first transmission member 12. Rotate the adjusting member 9 counterclockwise, so that the adjusting member 9 drives the screw member 20 to spiral upward through the first transmission member 12 and the second transmission member 16, inserting the pen tip 3 into the ink and drawing the ink into the ink cavity 2. Finally, press the adjusting member 9 into the fixing member 102, so that the protruding structure 10 of the adjusting member 9 is engaged in the first limiting ring groove 6.

[0044] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A fountain pen, comprising a pen casing (1), wherein the pen casing (1) has an ink cavity (2) therein, wherein the ink cavity (2) has a movable screw (20) therein, the tail end of the screw (20) extending from the tail of the pen casing (1), and the tail of the pen casing (1) has a rotatable adjusting member (9), characterized in that: The adjusting member (9) is plugged into the tail of the pen shell (1). The tail of the pen shell (1) is provided with a first transmission member (12) that is spirally connected to the screw member (20). The first transmission member (12) is rotatably connected to the tail of the pen shell (1). The adjusting member (9) is fixedly connected with a second transmission member (16). The adjusting member (9) is pulled out from the tail of the pen shell (1) to fix the second transmission member (16) and the first transmission member (12). The adjusting member (9) is inserted into the tail of the pen shell (1) to separate the second transmission member (16) from the first transmission member (12). Rotate the adjusting component (9) so that the adjusting component (9) drives the screw component (20) to spiral down or spiral up through the first transmission component (12) and the second transmission component (16) to adjust the ink dispensing process or the ink filling process of the pen.

2. A fountain pen as described in claim 1, characterized in that: The pen shell (1) has a first channel (4) at its tail end. The adjusting member (9) is movably fitted in the first channel (4). The inner wall of the first channel (4) has a first inner protrusion structure (5) along its circumference. There is a first limiting ring groove (6) between the first inner protrusion structure (5) and the bottom of the first channel (4). One end of the adjusting member (9) has an outer protrusion structure (10). The outer protrusion structure (10) is adapted to fit in the first limiting ring groove (6). The first inner protrusion structure (5) has a guide structure (11) for the outer protrusion structure (10) to disengage from / enter the first limiting ring groove (6).

3. A fountain pen as described in claim 2, characterized in that: The pen casing (1) includes a fixing member (102), the fixing member (102) having the first channel (4), the adjusting member (9) being plugged into the tail of the pen casing (1) means that the adjusting member (9) is plugged into the first channel (4) of the fixing member (102), the fixing member (102) having a second channel (7), and the first transmission member (12) being rotatably connected to the tail of the pen casing (1) means that the first transmission member (12) is rotatably connected to the second channel (7) of the fixing member (102).

4. A fountain pen as described in claim 3, characterized in that: The inner wall of the second channel (7) is provided with a second inner protrusion structure (8) along its circumference, and the outer wall of the first transmission member (12) is provided with a second limiting ring groove (13) along its circumference. The second inner protrusion structure (8) and the second limiting ring groove (13) are adapted to each other.

5. A fountain pen as described in claim 4, characterized in that: The second transmission member (16) is sleeved on the first transmission member (12). The tail end of the first transmission member (12) has a first toothed portion (14), and the second transmission member (16) has a second toothed portion (18). The second transmission member (16) pulls towards the tail end of the first transmission member (12) so that the first toothed portion (14) and the second toothed portion (18) mesh and connect.

6. A fountain pen as described in claim 5, characterized in that: The adjusting member (9) has an installation space that is adapted to the second transmission member (16). The installation space is provided with a third limiting ring groove (17). The second transmission member (16) has a convex ring structure that cooperates with the third limiting ring groove (17). The second transmission member (16) is fixedly connected in the installation space.

7. A fountain pen as described in claim 2, characterized in that: The guide structure (11) includes a slope / arc surface disposed on the first convex structure (5).

8. A fountain pen as described in claim 3, characterized in that: The pen casing (1) includes a pen holder (101), the ink chamber (2) is located in the pen holder (101), and the fixing member (102) is screwed to the tail end of the pen holder (101).

9. A fountain pen as described in claim 8, characterized in that: The screw component (20) includes a plug rod (21) and a plug head (22). The plug head (22) is interference-fitted in the ink cavity (2). The plug head (22) is integrally connected to the plug rod (21). The first transmission component (12) is sleeved on the plug rod (21). The plug rod (21) and the first transmission component (12) are spirally connected.

10. A fountain pen as described in claim 9, characterized in that: The outer circumferential surface of the stopper rod (21) is provided with an outer spiral connection part, and the inner circumferential surface of the first transmission member (12) is provided with an inner spiral connection structure. The rotation of the first transmission member (12) causes the stopper rod (21) to spiral in / out.

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