Leak-proof ballpoint pen

Abstract

This utility model discloses a leak-proof gel pen, comprising a pen body, a pen cap and a pen tip respectively provided at its upper and lower ends, and a press-type gel pen body formed by the extension and retraction of the pen tip through a press-type structure provided on the pen cap. The pen tip is provided with a leak-proof component, which includes a mounting bracket that can be detachably installed on the pen tip through slots on both sides of the pen tip, and a fixing groove provided on the mounting bracket for locking the bottom of the pen tip. The inner wall of the fixing groove is arc-shaped, and a top cap can be detachably installed inside the fixing groove. The bottom of the fixing groove also has several sets of through holes, and a top cover is provided on the mounting bracket located below the through holes. This gel pen can be conveniently stored and carried while effectively reducing the probability of ink leakage and seepage during storage and carrying, reducing the degree of pollution to storage containers or user clothing, and improving safety during carrying.

Description

Technical Field

[0001] This utility model relates to the field of ballpoint pens, specifically to a leak-proof ballpoint pen. Background Technology

[0002] As a widely used writing tool, ballpoint pens offer portability and ease of writing. However, the common press-type ballpoint pen structure in existing technology typically uses a pressing mechanism at the end of the pen body to extend and retract the pen tip along the pen body for writing and carrying. Most press-type ballpoint pens do not have a cap at the pen tip, and the pen tip is usually retracted for storage or carrying when not in use. During storage or carrying, the opening in the pen tip for the retracted pen tip is susceptible to foreign objects entering due to external storage conditions, causing unnecessary damage to the retracted pen tip. Accidental loss of the pen tip ball can also lead to ink leakage, which can contaminate storage boxes or the user's clothing during storage or carrying. This not only makes cleaning inconvenient but also reduces the user experience and increases safety hazards during transport. Utility Model Content

[0003] The purpose of this utility model is to provide a leak-proof gel pen that can be conveniently stored and carried while effectively reducing the probability of ink leakage and seepage during storage and carrying, reducing the degree of pollution to storage containers or user clothing, and improving safety during carrying.

[0004] The technical solution adopted by this utility model to solve the above problems is:

[0005] A leak-proof gel pen includes a pen body, a pen cap and a pen tip respectively provided at its upper and lower ends, and a press-type gel pen body formed by the extension and retraction of the pen tip through a press-type structure provided on the pen cap. The pen tip is provided with an leak-proof component, which includes a mounting bracket that can be detachably installed on the pen tip through slots provided on both sides of the pen tip, and a fixing groove provided thereon for locking the bottom of the pen tip.

[0006] Preferably, the inner wall of the fixing groove is provided with an arc-shaped surface and a top cap can be detachably installed inside the fixing groove.

[0007] Preferably, the bottom of the fixing groove is provided with several sets of through holes, and a top cover is provided on the mounting bracket placed below the through holes.

[0008] Preferably, foam is installed in the fixing grooves above the through hole and below the top cap, as well as inside the top cover.

[0009] Preferably, the top cover is mounted on the mounting bracket via a detachable structure and is made of transparent material.

[0010] Preferably, the pen cap is provided with a second slot on both sides for mounting brackets.

[0011] Compared with the prior art, this utility model has the following advantages and effects:

[0012] This utility model relates to a leak-proof gel pen. Compared to traditional push-button gel pens, this leak-proof gel pen features an added leak-proof component on the pen tip. The connection structure between the protruding parts on both sides of the mounting bracket and the slots on both sides of the pen tip facilitates installation and removal while further improving the positional stability of the mounting bracket when fixed to the pen tip. Furthermore, the fixing slots on the mounting bracket provide some protection for the retracted pen refill during installation, thus minimizing the risk of foreign objects entering the pen tip during storage and transport, which could damage the pen tip and its contents. The internal pen refill is protected from unnecessary damage. Furthermore, the sealing and locking mechanism on the mounting bracket effectively reduces the probability of ink leakage and seepage during storage and carrying, especially in cases where the pen tip falls out or the ballpoint pen tip falls out. This effectively reduces the degree of contamination to storage containers or the wearer's clothing. In addition, the mounting bracket's locking mechanism effectively prevents the pen refill from extending or retracting from the pen tip due to accidental contact with the pen cap's pressing mechanism, thus avoiding unnecessary damage to the wearer's clothing or even skin and improving safety during carrying. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the main body of the press-type ballpoint pen and its anti-leakage component according to an embodiment of the present invention.

[0014] Figure 2 This is an enlarged view of the connection structure between the pen tip and the ink leakage prevention component in an embodiment of this utility model.

[0015] Figure 3-4 This is an enlarged view of the connection structure between the fixing groove on the mounting bracket and the top cap and top cover in the ink leakage prevention assembly of this utility model embodiment.

[0016] Figure 5 This is an enlarged view of the connection structure between the pen cap and the ink leakage prevention component in an embodiment of this utility model.

[0017] Figure Numbers: Press-type ballpoint pen body 100, pen body 101, pen cap 102, second slot 1021, pen tip 103, opening 1030, slot 1031, pen refill 104, pressing structure 110, ink leakage prevention component 1, mounting bracket 11, protrusion 111, fixing groove 12, arc surface 121, isolation strip 122, through hole 123, top cap 13, second protrusion 131, top cover 14, foam 15. Detailed Implementation

[0018] The present invention will now be described in detail 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.

[0019] See Figure 1-2 This embodiment relates to a leak-proof gel pen, including a pen body 101 and a pen cap 102 and a pen tip 103 respectively provided at its upper and lower ends, as well as a press-type gel pen body 100 formed inside the pen body 101 by a press structure 110 provided on the pen cap 102 during the process of extension and retraction along the pen tip 103. The pen tip 103 is provided with a leak-proof component 1, which includes a mounting bracket 11 that can be detachably installed on the pen tip 103 through slots 1031 opened on both sides of the pen tip 103, and a fixing groove 12 provided thereon for locking the bottom of the pen tip 103.

[0020] Specifically in this embodiment, such as Figure 1 The overall structure and connection method of this press-type ballpoint pen body 100 and its leak-proof component 1 are shown. Specifically, when the pen retracts the pen core 104 inside the pen body 101 into the pen tip 103 through the press structure 110 provided on the pen cap 102 for subsequent storage or carrying, please refer to... Figure 2As shown, the mounting bracket 11 can deform to an appropriate degree along the periphery of the pen tip 103 through the protrusions 111 on both sides of the bracket and the corresponding structural settings of the mounting bracket 11. It can then be detachably connected to the adapter slots 1031 on both sides of the pen tip 103. At the same time, the mounting bracket 11 installed on the pen tip 103 has an adapter fixing groove 12 that can be placed below the pen tip 103 and the bottom of the opening 1030 for the extension and retraction of the pen refill 104 can be adapted and sealed. When it is needed for use, a certain external force is applied to the protrusions 111 on both sides of the mounting bracket 11 to separate them from the slots 1031 on both sides of the pen tip 103, and the mounting bracket 11 can be removed. Compared to the traditional press-type gel pen body 100, this leak-proof gel pen features an additional leak-proof component 1 on the pen tip 103. The connection structure between the protrusions 111 on both sides of the mounting bracket 11 and the slots 1031 on both sides of the pen tip 103 facilitates installation and removal while further improving the positional stability of the mounting bracket 11 when fixed to the pen tip 103. Furthermore, the fixing groove 12 on the mounting bracket 11 provides some protection for the retracted pen refill 104 during installation, thus minimizing the risk of foreign objects entering the pen tip 103 during storage and transport, which could damage the pen tip 103 and its internal components. The mounting bracket 11 prevents unnecessary damage to the pen tip 104. Furthermore, the sealing and locking of the bottom of the pen tip 103 by the fixing groove 12 on the mounting bracket 11 effectively reduces the probability of ink leakage and seepage outside the pen tip 103 when the pen ball falls off during storage and carrying. This effectively reduces the degree of contamination to storage boxes or the wearer's clothing. In addition, the fixing groove 12 on the mounting bracket 11 can effectively prevent the pen tip 104 from extending or retracting from the pen tip 103 due to accidental contact with the pressing structure 110 on the pen cap 102, thus preventing unnecessary damage to the wearer's clothing or even skin and improving safety during carrying.

[0021] The inner wall of the fixing groove 12 is provided with an arc-shaped surface 121, and a top cap 13 is detachably installed inside the fixing groove 12. For details, please refer to [the relevant documentation]. Figure 2 and Figure 3 The top cap 13 inside the fixing groove 12 shown is configured such that the top cap 13 can be adopted according to usage requirements. Figure 2 The conventional ballpoint pen cap shown has an internal rubber pad for the refill 104. This design allows for secure mounting during sliding via multiple sets of spacer strips 122 arranged around and at intervals within the fixing groove 12. This facilitates the installation, removal, replacement, and cleaning of the top cap 13. The top cap 13 structure can also be... Figure 3The structure shown is an improvement on the conventional pen cap structure, which has a rubber pad inside for holding the pen refill 104 in place. The second protrusion 131 on the top cap 13 allows the pen refill 104 to be simultaneously held in place via an opening 1030 at the bottom of the pen tip 103 for retraction. This effectively reduces the likelihood of the pen tip falling out during storage or transport and prevents ink leakage from the pen refill 104 if it does fall out. This improves the effectiveness of the top cap 13 and the overall performance of the leak-proof component 1. Furthermore, from... Figure 3 As can be seen, the inner wall of the fixing groove 12 can be set with an arc surface 121 of a corresponding curvature according to the corresponding structure of the pen tip 103 on the pen body 101, thereby further improving the fit between the inner wall of the fixing groove 12 and the outer wall of the pen tip 103, improving the sealing effect of the fixing groove 12 and the stability of this ink leakage prevention component 1.

[0022] The bottom of the fixing groove 12 is also provided with several sets of through holes 123, and a top cover 14 is provided on the mounting bracket 11 located below the through holes 123. Figure 3 and Figure 4 As can be seen, the arrangement of several sets of through holes 123 at the bottom of the fixing groove 12 allows an appropriate amount of ink flowing into the fixing groove 12 when ink leakage occurs in the pen core 104 inside the pen body 101. This ink can then pass through the through holes 123 into the top cover 14 below for collection and storage, thereby further reducing the probability of ink leakage and improving the functional diversity and usage flexibility of this ink leakage prevention component 1.

[0023] Foam 15 is installed in the fixing groove 12 located above the through hole 123 and below the top cap 13, as well as inside the top cover 14. The addition of foam 15 can absorb a certain amount of ink flowing into the top cap 13 and top cover 14 in the fixing groove 12 when ink leakage occurs. This effectively reduces the flow of ink that enters the top cover 14 and flows back into the pen body 101 when ink leakage occurs, reducing the degree of further contamination inside the pen body 101. It also further improves the ink collection effect inside the fixing groove 12 and the ink leakage prevention effect of this ink leakage prevention component 1, meeting different usage needs.

[0024] The top cover 14 is mounted on the mounting bracket 11 via a detachable structure and is made of transparent material, allowing it to be viewed from... Figure 4As can be seen, the top cover 14 and the mounting bracket 11 can be detachably connected by a threaded connection, which facilitates cleaning of the fixing groove 12 and the inside of the top cover 14. At the same time, the top cover 14, which is made of transparent material, allows users to easily observe and judge the ink accumulation inside the top cover 14 and the fixing groove 12, and can promptly detect and replace ink leakage in the pen refill 104, thus improving the stability of this leak-proof ballpoint pen.

[0025] The pen cap 102 also has second slots 1021 on both sides for mounting the bracket 11, as detailed in the following document. Figure 5 As shown, the protrusions 111 on both sides of the mounting bracket 11 can also be engaged through the second slots 1021 on both sides of the pen cap 102. This engagement is achieved without affecting the normal use of the pen cap 102, where the pressing structure 110 allows the pen refill 104 to extend for writing and retract for placement. This allows the mounting bracket 11 to be engaged with the pen cap 102 during writing, facilitating easy access and reducing the risk of loss of the anti-leakage component 1. Furthermore, the anti-leakage component 1 can be configured in two sets according to usage requirements, and engaged with the pen cap 102 and pen tip 103 respectively. This further improves the stability of the pen refill 104 within the pen body 101 during carrying, effectively preventing unnecessary damage to the anti-leakage component 1 located on the pen tip 103 caused by accidental contact with the pressing structure 110 on the pen cap 102, which would otherwise extend or retract the pen refill 104. This enhances the stability of the anti-leakage component 1 and the carrying safety of this type of anti-leakage gel pen.

[0026] 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 leak-proof gel pen, comprising a pen body, a pen cap and a pen tip respectively disposed at its upper and lower ends, and a press-type gel pen body formed by the extension and retraction of the pen tip through a press-type structure disposed on the pen cap, characterized in that: The pen tip is provided with an ink leakage prevention component, which includes a mounting bracket that can be detachably installed on the pen tip through slots on both sides of the pen tip, and a fixing slot provided thereon for locking the bottom of the pen tip.

2. The ink-leak-proof gel pen according to claim 1, characterized in that: The inner wall of the fixing groove is arc-shaped, and a top cap can be detachably installed inside the fixing groove.

3. The ink-leak-proof gel pen according to claim 1, characterized in that: The bottom of the fixing groove is also provided with several sets of through holes, and a top cover is provided on the mounting bracket placed below the through holes.

4. The leak-proof gel pen according to claim 3, characterized in that: Foam is installed in the fixing grooves above the through hole and below the top cap, as well as inside the top cover.

5. The leak-proof gel pen according to claim 3, characterized in that: The top cover is mounted on the mounting bracket via a detachable structure and is made of transparent material.

6. The leak-proof gel pen according to claim 1, characterized in that: The pen cap is also provided with a second slot on both sides for mounting brackets.

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