A unitary water reservoir

CN224392223UActive Publication Date: 2026-06-23LZ STATIONERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LZ STATIONERY
Filing Date
2025-08-13
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing water storage devices have problems with negative pressure performance, ink dripping and non-inking, sediment accumulation, and high and low temperature environments, which affect the stability and aesthetics of use.

Method used

An integrated water storage device was designed, comprising a liquid storage shell, a drinking core, and a cover. It adopts an annular blocking part and a multi-segment sealing structure, combined with an integrated molding design, to prevent sediment accumulation and maintain sealing and stability at high and low temperatures.

Benefits of technology

It effectively prevents sediment buildup, reduces ink dripping and ink leakage, improves the stability and aesthetics of the water tank in high and low temperature environments, and enhances negative pressure performance and sealing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224392223U_ABST
    Figure CN224392223U_ABST
Patent Text Reader

Abstract

This utility model discloses an integrated water storage device, comprising: a liquid storage shell, a drinking core, and a cover; the drinking core is axially disposed within the inner cavity of the liquid storage shell; the cover is arc-shaped and disposed at the front end of the liquid storage shell, and is fixedly connected to the liquid storage shell by a support plate; the drinking core at least partially passes through the support plate and the cover; the liquid storage shell has an annular blocking portion surrounding the drinking core at one end near the cover; the side wall of the liquid storage shell has at least two sealing sections axially, with a liquid storage section formed between adjacent sealing sections, and the outer diameter of the sealing sections increasing sequentially from the front end to the rear end of the liquid storage shell. Through the above design, the integrated water storage device can effectively prevent sediment from accumulating at the drinking core, improving the stability and aesthetics of the product.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of stationery technology, and in particular to an integrated water storage device. Background Technology

[0002] Currently, common ink reservoirs on the market are typically used in writing instruments to store and transport ink. These reservoirs need to ensure stable liquid delivery performance and maintain good sealing under various environmental conditions. However, the existing technology still has the following problems:

[0003] Firstly, regarding negative pressure performance, existing water storage devices generally operate at -10kPa to -15kPa in negative pressure tests. While this generally meets the national standard requirement of -10kPa, it may still lead to unstable liquid delivery under certain operating conditions.

[0004] Secondly, existing products are prone to ink dripping and ink not flowing during actual use, affecting writing quality and user experience.

[0005] Furthermore, under high and low temperature testing conditions, a large amount of ink will flow into the front area of ​​the water tank, causing contamination of the water tank's appearance and affecting the product's aesthetics.

[0006] Finally, when the product is placed vertically for a long time, precipitates such as titanium dioxide in the ink tend to accumulate around the ink cartridge, hindering the ink cartridge's adsorption of ink, thereby reducing the stability of ink delivery and affecting writing performance.

[0007] Therefore, existing technologies urgently need a water tank structure that can reduce ink dripping and ink failure while maintaining negative pressure performance, and effectively prevent sediment accumulation and appearance contamination under high and low temperature environments and long-term storage conditions, so as to improve the stability and aesthetics of the product. Utility Model Content

[0008] To address the shortcomings of existing technologies, the purpose of this invention is to provide an integrated water storage device. This integrated water storage device possesses excellent stability and aesthetic appeal.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An integral water storage device includes: a liquid storage shell, a drinking core, and a cover; the drinking core is axially disposed within the inner cavity of the liquid storage shell; the cover is arc-shaped and disposed at the front end of the liquid storage shell, and is fixedly connected to the liquid storage shell by a support plate; the drinking core passes through the support plate and the cover at least partially; the liquid storage shell has an annular blocking portion surrounding the drinking core at one end near the cover; the side wall of the liquid storage shell has at least two sealing sections axially disposed, and a liquid storage section is formed between adjacent sealing sections, the outer diameter of the sealing sections increasing sequentially from the front end to the rear end of the liquid storage shell.

[0011] Furthermore, the front end of the drinking core is conical, and the rear end of the cover has a stepped surface structure for abutting and cooperating with the front end of the drinking core.

[0012] Furthermore, the liquid storage section consists of multiple annular groove structures arranged at intervals along the axial direction of the liquid storage shell.

[0013] Furthermore, the sealing section is an annular flange structure, and the sealing section in the middle is provided with a notch for connecting the liquid storage sections at both ends.

[0014] Furthermore, the cover, support plate, and liquid storage shell are integrally molded structures.

[0015] Furthermore, the volume of the multiple liquid storage sections increases sequentially from the front end of the liquid storage shell to the rear end.

[0016] The aforementioned integrated water reservoir effectively prevents sediment in the liquid from moving towards the drinking core by setting an arc-shaped cover at the front end of the liquid storage shell and forming an annular barrier between the cover and the drinking core, thus avoiding affecting the liquid adsorption and transmission performance. By setting an ink storage section to temporarily store ink and temporarily increase the negative pressure of the product, ink will no longer flow out at the second sealed section, increasing the product's aesthetics. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the integrated water storage device provided by this utility model;

[0018] Figure 2 This is a cross-sectional view of the integrated water storage device provided by this utility model. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In addition, to clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The top, bottom, left, right, front, and back sides are shown.

[0021] like Figure 1 and Figure 2 As shown, this application provides an integrated water storage device, including: a liquid storage shell 1, a drinking core 2, and a cover 3.

[0022] Specifically, the drinking core 2 is axially disposed within the inner cavity of the liquid storage shell 1; the cover 3 is arc-shaped and disposed at the front end of the liquid storage shell 1, and is fixedly connected to the liquid storage shell 1 by a support plate 4; the drinking core 2 at least partially passes through the support plate 4 and the cover 3; the liquid storage shell 1 has an annular blocking part 5 surrounding the drinking core 2 at one end near the cover 3; the side wall of the liquid storage shell 1 has at least two sealing sections 6 axially disposed, and a liquid storage section 7 is formed between adjacent sealing sections 6, and the outer diameter of the sealing section 6 increases sequentially from the front end to the rear end of the liquid storage shell 1.

[0023] By providing a cover 3 and an annular blocking part 5 at the front end of the liquid storage shell 1, sediment can be effectively prevented from accumulating around the drinking core 2, thereby maintaining the adsorption performance of the drinking core 2 and extending its service life. Simultaneously, the multi-stage sealing design combined with the liquid storage section 7 can temporarily store some liquid and create negative pressure during high and low temperature changes, thereby reducing liquid leakage and maintaining a clean and aesthetically pleasing product appearance. Furthermore, the sealing sections 6 with progressively increasing outer diameters not only improve sealing performance but also simplify the assembly process. The overall structural design is compact, ensuring functionality while enhancing aesthetics and reliability.

[0024] like Figure 2 As shown, the front end of the drinking core 2 is conical, and the rear end face of the cover 3 has a stepped surface structure for abutting and fitting with the front end of the drinking core 2. The fit between the conical shape and the stepped surface not only improves the sealing performance but also effectively prevents liquid leakage and enhances the adaptability of the water tank under high and low temperature or pressure change conditions.

[0025] The liquid storage section 7 consists of multiple annular grooves spaced apart along the axial direction of the liquid storage shell 1, which improves the liquid storage stability of the water tank and ensures that the liquid remains inside the water tank even under conditions of transportation, tilting, or temperature changes, thereby reducing the risk of leakage. The segmented storage method demonstrates good pressure resistance and sealing performance in high and low temperature tests, and also helps to prevent sediment from forming during storage, extending the service life of the drinking core 2 and the water tank as a whole.

[0026] like Figure 1 and Figure 2 As shown, the sealing section 6 is an annular flange structure. The sealing section 6 located in the middle has a notch 8 for connecting the liquid storage sections 7 at both ends, which achieves a balance between sealing and connection. It can prevent liquid leakage and allow liquid to transfer inside when necessary, thereby improving the stability of the water tank under different operating conditions.

[0027] Optionally, the cover 3, the support plate 4, and the liquid storage shell 1 are integrally molded to reduce the number of parts and assembly steps, reduce production costs and assembly difficulty, and improve the stability of the overall structure.

[0028] The volume of multiple liquid storage sections 7 increases sequentially from the front end to the rear end of the liquid storage shell 1 to optimize the utilization of internal space, thereby improving the overall liquid storage capacity while maintaining a compact structure. Simultaneously, this design helps maintain a stable distribution of the internal liquid under different temperature conditions, reducing the risk of liquid spillage due to thermal expansion and contraction.

[0029] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. An integrated water storage device, characterized in that, include: Liquid storage shell (1), drinking core (2) and cover (3); The drinking core (2) is axially disposed in the inner cavity of the liquid storage shell (1); The cover (3) is arc-shaped and is located at the front end of the liquid storage shell (1). It is fixedly connected to the liquid storage shell (1) by a support plate (4). The drinking core (2) passes through the support plate (4) and the cover (3) at least partially. The liquid storage shell (1) has an annular blocking part (5) around the drinking core (2) at one end near the cover (3); the side wall of the liquid storage shell (1) is provided with at least two sealing sections (6) along the axial direction, and a liquid storage section (7) is formed between adjacent sealing sections (6), and the outer diameter of the sealing section (6) increases sequentially from the front end to the rear end of the liquid storage shell (1).

2. The integrated water storage device according to claim 1, characterized in that, The front end of the drinking core (2) is conical, and the rear end face of the cover (3) is provided with a stepped surface structure for abutting and cooperating with the front end of the drinking core (2).

3. The integrated water storage device according to claim 1, characterized in that, The liquid storage section (7) is a plurality of annular groove structures arranged at intervals along the axial direction of the liquid storage shell (1).

4. The integrated water storage device according to claim 1, characterized in that, The sealing section (6) is an annular flange structure, and the sealing section (6) located in the middle is provided with a notch (8) for connecting the liquid storage sections (7) at both ends.

5. The integrated water storage device according to claim 1, characterized in that, The cover (3), support plate (4) and liquid storage shell (1) are integrally formed structures.

6. The integrated water storage device according to claim 1, characterized in that, The volume of the plurality of liquid storage sections (7) increases sequentially from the front end of the liquid storage shell (1) to the rear end.