A new type of pen cap and direct liquid type propylene pen using the same

Abstract

The utility model discloses a novel cap and straight liquid type propylene pen using the cap, wherein the novel cap comprises: a cap body for sleeving on a pen head and a pen grip; a sliding sleeve for sleeving on the pen head; wherein the cap body and the sliding sleeve are both hollow structures with one end closed and the other end open, the sliding sleeve is axially slidably connected in the cavity of the cap body, a spring is arranged between one end of the sliding sleeve and one end of the cap body, the spring is located in the cavity of the cap body and the two ends of the spring abut against the sliding sleeve and the cap body respectively, and when the sliding sleeve is sleeved on the pen head, there is a spacing space between one end of the sliding sleeve and the pen point. The utility model can reduce the occurrence of the situation that the pigment on the pen point is adhered to the inner side of the cap when the pen head is inserted and pulled out, reduces the risk of the pen point being damaged by touch and guarantees the neatness of the side surface of the pen grip in the cap.

Description

Technical Field

[0001] This utility model relates to the field of stationery, specifically to a novel pen cap and a direct-liquid acrylic pen using the pen cap. Background Technology

[0002] Acrylic pens are a type of paint pen made from acrylic resin, hence the name. They are suitable for various applications such as painting, watercolor, and line drawing, and are characterized by their excellent covering power and vibrant colors.

[0003] Because acrylic pens have pigment in the nib (i.e., the exposed tip and side of the nib), they usually have a cap. However, during the capping process, due to deviations in the nib's insertion direction, pigment from the nib can easily transfer to the inside of the cap. This can then stain the grip after the pen tip is inserted, affecting subsequent use. Furthermore, due to the need for a clear view, the nib is often tapered. When the nib is pulled out of the cap, the cap's ability to restrict the nib's movement is reduced, increasing the risk of the nib coming into contact with the inside of the cap due to wobbling. This increases the risk of damage from contact. Utility Model Content

[0004] The purpose of this utility model is to provide a novel pen cap and a direct-liquid acrylic pen using the pen cap. The pen cap and the direct-liquid acrylic pen using the pen cap can reduce the occurrence of ink from the pen tip getting on the inner side of the pen cap when the pen tip is inserted and pulled out, reduce the risk of the pen tip being damaged by contact, and ensure the cleanliness of the pen grip side inside the pen cap.

[0005] The technical solution adopted by this utility model to solve the above problems is: A new type of pen cap includes: The cap is used to fit over the pen tip and grip; A sliding sleeve, used to fit over the pen tip; The cap body and the sliding sleeve are both hollow structures with one end closed and the other end open. The sliding sleeve is slidably connected to the cavity of the cap body along the axial direction. A spring is provided between one end of the sliding sleeve and one end of the cap body. The spring is located in the cavity of the cap body and its two ends abut against the sliding sleeve and the cap body respectively. When the sliding sleeve is fitted onto the pen tip, there is a gap between one end of the sliding sleeve and the pen tip.

[0006] As a further limitation of this utility model, the diameter of the sliding sleeve gradually increases from one end to the other, and the diameter between the two ends of the pen tip is smaller than the maximum diameter of the sliding sleeve but larger than its minimum diameter.

[0007] As a further limitation of this utility model, there is a gap space between the outer side of the sliding sleeve and the inner side of the cap body, and a number of protrusions for pen gripping are provided on the inner side of the other end of the cap body. The protrusions are located in the gap space and each protrusion is arranged at an equal angle around the central axis of the cap body.

[0008] As a further limitation of this utility model, a limiting block is integrally connected to the outer surface of one end of the cap body.

[0009] As a further limitation of this utility model, the sliding sleeve is provided with a plurality of sliders arranged at equal angles around its central axis, and the cavity of the cap body is provided with a plurality of protrusions arranged at equal angles around its central axis. Adjacent protrusions form a groove for accommodating the sliding of the sliders, and the grooves correspond one-to-one with the sliders.

[0010] As a further limitation of this utility model, the cap body includes a sleeve and a cap. The sleeve is a tubular structure with openings at both ends, and the cap is inserted into and covers the opening at one end of the sleeve, and the two can be connected by a snap-fit ​​structure.

[0011] This utility model also provides a direct-liquid acrylic pen, comprising: Pen writing, used for writing; The pen cap is designed to be fitted and snapped onto the pen grip, and its structure is the same as that of the novel pen cap described in the above technical solution.

[0012] As a further limitation of this utility model, the diameter of the pen barrel gradually decreases from one end to the other, the diameter of one end of the pen barrel is greater than the inner diameter of the cap, and when the pen cap is fitted and snapped onto the pen grip, the other end of the cap abuts against one end of the pen barrel.

[0013] As a further limitation of this utility model, the outer surface of the pen grip is provided with a protruding ring for the cap body to be engaged.

[0014] Compared with the prior art, this utility model has the following advantages and effects: (1) The present invention, through the structural design between the cap body and the sliding sleeve, enables the sliding sleeve to accommodate the pen tip when the pen tip is inserted into the pen cap, reducing the occurrence of ink on the pen tip getting on the inner side of the pen cap when the pen tip is inserted and pulled out. This reduces the risk of the pen tip being damaged by contact while also ensuring the cleanliness of the pen grip side inside the pen cap, making it easy to hold the pen grip directly when used again.

[0015] (2) By setting a spring structure between the cap body and the sliding sleeve, the sliding sleeve can be located at the pen tip insertion position on the cap when the pen tip is not inserted, ensuring the convenience of the sliding sleeve to accommodate the pen tip. During the insertion and removal of the pen tip, the sliding sleeve can always be fitted on the pen tip, ensuring the accommodating effect of the sliding sleeve on the pen tip, thereby ensuring the cleanliness of the inner side of the pen cap. At the same time, due to the driving effect of the spring on the sliding sleeve, it can push the pen tip out during the removal of the pen tip, improving the convenience of use. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a direct-liquid acrylic pen according to this utility model.

[0017] Figure 2 yes Figure 1 The diagram shows the structure of the pen cap.

[0018] Figure 3 yes Figure 1 The diagram shows a structural schematic of the state one between the pen body and the pen barrel.

[0019] Figure 4 yes Figure 1 The diagram shows a structural schematic of the pen body and pen barrel in state two.

[0020] Figure 5 yes Figure 4 The diagram shows a longitudinal cross-sectional view of the pen cap.

[0021] Figure 6 yes Figure 5 The diagram shows a schematic cross-sectional view of the structure between the cap and the sliding sleeve.

[0022] Figure 7 yes Figure 6 The diagram shows a magnified view of a portion of the cap's structure.

[0023] The components include: pen body 1, pen cap 2, cap body 21, sleeve 22, cover 23, sliding sleeve 3, spring 31, gap space 4, convex ring 5, limiting block 6, slider 71, convex piece 72, sliding groove 73, convex block 8, pen grip 91, pen tip 92, pen nib 93, and pen barrel 94. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0025] See Figures 1-7This embodiment of a direct-liquid acrylic pen includes a pen body 1 for writing and a pen cap 2 that can be fitted and snapped onto the pen grip. The pen cap 2 includes a cap body 21 for fitting onto the pen tip and the pen grip, and a sliding sleeve 3 for fitting onto the pen tip. Both the cap body 21 and the sliding sleeve 3 are hollow structures with one end closed and the other end open. The sliding sleeve 3 is slidably connected to the cavity of the cap body 21 along the axial direction. A spring 31 is provided between one end of the sliding sleeve 3 and one end of the cap body 21. The spring 31 is located in the cavity of the cap body 21 and its two ends abut against the sliding sleeve 3 and the cap body 21 respectively. When the sliding sleeve 3 is fitted onto the pen tip, there is a gap space 4 between one end of the sliding sleeve 3 and the pen tip.

[0026] Under normal conditions, the pen cap 2 is placed on the pen tip, and the spring 31 is in a compressed state. When needed, the pen tip is pulled out from inside the pen cap 2, which releases the locking connection between the pen cap 2 and the pen grip. As a result, the sliding sleeve 3 can slide from one end of the cap body 21 to the other end under the force of the spring 31 returning to its original state, pushing the pen tip out of the cap body 21, thus assisting in the separation of the pen body 1 and the pen cap 2.

[0027] After the pen body 1 is used up, the pen tip is inserted into the sliding sleeve 3 and slides against the sliding sleeve 3 from one end of the cap body 21 to the other (e.g., Figure 3 , Figure 4 As shown in the diagram, the spring 31 is compressed until the pen grip and pen cap 2 are snapped into place.

[0028] See Figure 1 , Figure 3 The outer side of the pen grip is provided with a protruding ring 5 for the cap body 21 to be snapped into place, which ensures the stability of the pen cap 2 on the pen body 1, thereby ensuring the pen cap 2's ability to accommodate and protect the pen tip.

[0029] See Figure 2 A limiting block 6 is integrally connected to the outer surface of one end of the cap 21, which can prevent the acrylic pen from rolling when placed horizontally, thereby reducing the risk of the acrylic pen falling from a height and being damaged due to rolling.

[0030] See Figure 3 , Figure 4 The diameter of the pen body 1 gradually decreases from one end to the other, causing the center of gravity of the pen body to be biased towards one end when holding the acrylic pen, reducing wobbling and improving stability during use. The diameter of one end of the pen body 13 is larger than the inner diameter of the cap 21. When the pen cap 2 is fitted and snapped onto the pen grip, the other end of the cap 21 abuts against one end of the pen body, restricting the pen body from entering the cap 21. This ensures the stability of the pen body 1's extension length inside the cap 2 and reduces the risk of the spring 31 deforming and being damaged due to excessive compression.

[0031] See Figure 3 , Figure 5 The diameter of the sliding sleeve 3 gradually increases from one end to the other. The diameter between the two ends of the pen tip is smaller than the maximum diameter of the sliding sleeve 3 but larger than its minimum diameter, which ensures that the sliding sleeve 3 can accommodate the pen tip.

[0032] See Figure 5 , Figure 6 The sliding sleeve 3 is provided with a plurality of sliders 71 arranged at equal angles around its central axis. The cavity of the cap 21 is provided with a plurality of protrusions 72 arranged at equal angles around its central axis. Adjacent protrusions 72 form a groove 73 for accommodating the sliding of the sliders 71. The grooves 73 correspond one-to-one with the sliders 71, ensuring the stability of the sliding sleeve 3 relative to the cap 21.

[0033] See Figure 5 The cap body 21 includes a sleeve 22 and a cap 23. The sleeve 22 is a tubular structure with openings at both ends. The cap 23 is inserted into and covers the opening at one end of the sleeve 22, and the two can be connected by a snap-fit ​​structure. The assembly-type mechanism of the cap body 21 improves the ease of installation of the sliding sleeve 3 and spring 31, while also reducing the manufacturing difficulty of the cap body 21, ensuring the structural integrity of the cap body 21, and thus guaranteeing the usability of the pen cap 2.

[0034] See Figure 6 , Figure 7 There is a gap space 4 between the outer side of the sliding sleeve 3 and the inner side of the cap 21. The inner side of the other end of the cap 21 is provided with a number of protrusions 8 for the pen grip to engage. The protrusions 8 are located in the gap space 4 and each protrusion 8 is arranged at an equal angle around the central axis of the cap 21, which ensures the smoothness of the sliding sleeve 3 relative to the cap 21, reduces the risk of wear of the protrusions 8 caused by the sliding sleeve 3, and when the pen grip is fully inserted into the cap 21, the protrusions 8 can restrict the pen grip from disengaging from the pen cap 2 by abutting against the protruding ring 5, which ensures the stability of the engagement state between the pen grip and the cap 21.

[0035] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A novel pen cap, characterized in that, include: The cap is used to fit over the pen tip and grip; A sliding sleeve, used to fit over the pen tip; The cap body and the sliding sleeve are both hollow structures with one end closed and the other end open. The sliding sleeve is slidably connected to the cavity of the cap body along the axial direction. A spring is provided between one end of the sliding sleeve and one end of the cap body. The spring is located in the cavity of the cap body and its two ends abut against the sliding sleeve and the cap body respectively. When the sliding sleeve is fitted onto the pen tip, there is a gap between one end of the sliding sleeve and the pen tip.

2. The novel pen cap according to claim 1, characterized in that: The diameter of the sliding sleeve gradually increases from one end to the other, and the diameter between the two ends of the pen tip is smaller than the maximum diameter of the sliding sleeve but larger than its minimum diameter.

3. The novel pen cap according to claim 1, characterized in that: There is a gap between the outer side of the sliding sleeve and the inner side of the cap body. Several protrusions for pen gripping are provided on the inner side of the other end of the cap body. The protrusions are located in the gap space and are arranged at equal angles around the central axis of the cap body.

4. The novel pen cap according to claim 1, characterized in that: A limit block is integrally connected to the outer surface of one end of the cap.

5. The novel pen cap according to claim 1, characterized in that: The sliding sleeve is provided with several sliders arranged at equal angles around its central axis, and the cavity of the cap is provided with several protrusions arranged at equal angles around its central axis. Adjacent protrusions form grooves for accommodating the sliding of the sliders, and the grooves correspond one-to-one with the sliders.

6. The novel pen cap according to claim 1, characterized in that: The cap body includes a sleeve and a cap. The sleeve is a tubular structure with openings at both ends. The cap is inserted into and covers the opening at one end of the sleeve, and the two can be connected by a snap-fit ​​structure.

7. A direct-liquid acrylic pen, characterized in that, include: Pen writing, used for writing; A pen cap that can be fitted and snapped onto the pen grip, the structure of which is the same as that of the novel pen cap described in any one of claims 1-6.

8. The direct-liquid acrylic pen according to claim 7, characterized in that: The diameter of the pen barrel gradually decreases from one end to the other. The diameter of one end of the pen barrel is larger than the inner diameter of the cap. When the pen cap is fitted and snapped onto the pen grip, the other end of the cap abuts against one end of the pen barrel.

9. The direct-liquid acrylic pen according to claim 8, characterized in that: The outer surface of the pen grip is provided with a protruding ring for the cap to be snapped into place.

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