Pen shell device compatible with refills of multiple specifications
By designing a pen case device that is compatible with multiple specifications of pen refills and utilizing a combination of a sliding part and a locking part, the problem of insufficient adaptability of the pen refills is solved, flexible adaptation and fixation of the pen refills are achieved, the user experience is improved, and resource waste is reduced.
Patent Information
- Application Number
- CN202510834825.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2025-09-19
AI Technical Summary
Existing pen products have problems with insufficient refill adaptability and a wide variety in design and usage, which leads to inconvenience in carrying, waste of resources and environmental burden.
A pen case device compatible with multiple specifications of pen refills is designed. Through the combination of a sliding part and a locking part, and the cooperation of a slide rail, a slider, a spring sheet and a pressing piece, flexible adaptation and fixation of pen refills of different specifications and types can be achieved.
It achieves flexible adaptation to refills of different specifications and types, provides a better user experience, and reduces resource waste and environmental burden.
Smart Images

Figure CN120663675A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of stationery, and in particular to a pen case device compatible with pen refills of multiple specifications. Background Art
[0002] Numerous scenarios in life and work, from signing documents to daily study and draft writing, have generated a huge and continuous demand for writing tools. However, existing pen products have significant pain points in their design and usage patterns: insufficient refill compatibility and a wide variety of pens make them inconvenient to carry. The need to meet different writing scenarios (such as oil-based, water-based, color, and thickness) and the helpless preparation for "ink shortage" directly force users to purchase and carry multiple types and models of pens at the same time, making personal storage difficult and management chaotic. This combination of design flaws and inconvenience means that when a refill is exhausted and a matching refill is difficult to obtain or the refill operation is cumbersome, convenience and cost considerations often lead users to simply discard the entire pen. This common behavior pattern ultimately inevitably leads to serious resource waste and environmental burden. Therefore, the design problems of existing pens not only cause unnecessary resource consumption, but also have a substantial negative impact on the ecological environment and urgently need to be changed. Summary of the Invention
[0003] The present invention is made to solve the above-mentioned problem, and its purpose is to provide a pen case device compatible with pen refills of multiple specifications.
[0004] The present invention provides a pen case device compatible with multiple specifications of pen refills, having the following characteristics: a pen case; a sliding portion, arranged inside the pen case and used to adjust the position of the pen refill; a locking portion, connected to the sliding portion and used to fix the pen refill; wherein the locking portion includes: a locking shell; a pressing piece, connected to the locking shell and used to be pressed by a user; a spring sheet, connected to the pressing piece and used to tightly lock the sliding portion; a spring, connected to the spring sheet, used to enable the pressing piece to apply pressure to the spring sheet and then reset; the sliding portion includes: a slide rail, arranged inside the pen case; a slider, connected to the spring and used to move on the slide rail when the user presses the pressing piece; and a pen refill pusher, connected to the slider and used to move on the slide rail driven by the slider and push the pen refill to a target area when it abuts against the pen refill.
[0005] The pen case device compatible with multiple specifications of pen refills provided by the present invention may also have the following feature: a plurality of positioning holes are provided on the track of the slide rail.
[0006] The pen case device compatible with multiple specifications of refills provided by the present invention may further have the following features: wherein the front end of the spring piece has a protrusion, and there are at least two spring pieces, and when the rear end of the spring piece is not subjected to force, the protrusion at the front end of the spring piece is tightly fastened in the positioning hole of the slide rail;
[0007] When the rear end of the spring piece is subjected to pressure from the pressing member, the protrusion at the front end of the spring piece is separated from the positioning hole of the slide rail.
[0008] The pen case device provided by the present invention and compatible with multiple specifications of pen refills may also have the following features: the spring sheet has protrusions on both sides, the slider has positioning grooves, and the protrusions on both sides of the spring sheet are inserted into the positioning grooves to fix the spring sheet on the slider.
[0009] The pen case device compatible with multiple specifications of pen refills provided by the present invention may also have the following features: wherein the slider further includes: a protrusion, which is arranged on the top of the slider and is used to fix the position of the spring.
[0010] The pen case device compatible with multiple specifications of pen refills provided by the present invention may also have the following features: wherein the pen refill push block further includes a fixing groove, on which slots of different diameters are provided for matching and fixing pen refills of different diameters.
[0011] The pen case device compatible with multiple specifications of pen refills provided by the present invention may also have the following feature: the pen case is provided with an opening in a section corresponding to the movement trajectory of the locking portion.
[0012] The pen case device compatible with multiple specifications of pen refills provided by the present invention may also have the following features: a pen tail connected to the opening of the pen case for limiting position.
[0013] The pen case device provided by the present invention, which is compatible with multiple specifications of pen refills, may also have the following features: a rubber pad, which is arranged inside the pen case and is used to fix the head of the pen refill to prevent the head of the pen refill from shaking.
[0014] Functions and effects of the invention
[0015] The pen case device compatible with multiple specifications of pen refills according to the present invention comprises: a pen case; a sliding part arranged inside the pen case for adjusting the position of the pen refill; a locking part connected to the sliding part for fixing the pen refill; wherein the locking part comprises: a locking shell; a pressing piece connected to the locking shell for being pressed by a user; a spring sheet connected to the pressing piece for tightly locking the sliding part; a spring connected to the spring sheet for causing the pressing piece to reset after applying pressure to the spring sheet; the sliding part comprises: a slide rail arranged inside the pen case; a slider connected to the spring for moving on the slide rail when the user presses the pressing piece; a pen refill push block connected to the slider for moving on the slide rail driven by the slider and pushing the pen refill to a target area when abutting against the pen refill. Therefore, the pen case device compatible with multiple specifications of pen refills according to the present invention can flexibly adapt to pen refills of different specifications and types, providing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 12 is a schematic diagram of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a front view of the pen case device compatible with multiple specifications of pen refills, b is a side view, and c is an exploded view of the locking portion and the sliding portion.
[0017] Figure 2 1 is a schematic diagram of the deformation of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention when pressed, wherein a is a schematic diagram of the deformation before pressing, and b is a schematic diagram of the deformation after the pressing force F is applied.
[0018] Figure 3 These are three views of the locking portion and sliding portion of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a front view of the locking portion and the sliding portion, b is a side view of the locking portion and the sliding portion, and c is a top view of the locking portion and the sliding portion.
[0019] Figure 4 2 is a schematic diagram of the dimensions of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a schematic front view of the dimensions of the pen case device compatible with multiple specifications of pen refills, and b is a schematic side view of the dimensions.
[0020] Figure 5 This is a schematic diagram of the dimensions of the lock shell in the pen shell device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the lock shell, b is a schematic top view of the dimensions of the lock shell, and c is a schematic front view of the dimensions of the lock shell.
[0021] Figure 6 This is a schematic diagram of the dimensions of the pressing member in the pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the pressing member, b is a front view schematically showing the dimensions of the pressing member, c is a side view schematically showing the dimensions of the pressing member, and d is a top view schematically showing the dimensions of the pressing member.
[0022] Figure 7 Schematic diagram of the dimensions of a spring piece in a pen case device compatible with multiple specifications of refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the spring piece, b is a top view schematically showing the dimensions of the spring piece, c is a side view schematically showing the dimensions of the spring piece, d is a front view schematically showing the dimensions of the spring piece, and e is a schematic diagram of the dimensions of the spring.
[0023] Figure 8 This is a schematic diagram of the dimensions of the slider and the refill pusher block in a pen case device compatible with multiple specifications of refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the slider and the refill pusher block, b is a front view schematically showing the dimensions of the slider and the refill pusher block, c is a side view schematically showing the dimensions of the slider and the refill pusher block, and d is a top view schematically showing the dimensions of the slider and the refill pusher block.
[0024] Figure 9Schematic diagrams of two structures of the refill pusher block in a pen case device compatible with refills of multiple specifications in an embodiment of the present invention, wherein a is a transverse fixing structure of the refill pusher block, and b is a longitudinal fixing structure of the refill pusher block. DETAILED DESCRIPTION
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following embodiments and accompanying drawings specifically illustrate the pen case device of the present invention that is compatible with multiple specifications of pen refills.
[0027] Example
[0028] Figure 1 2 is a schematic diagram of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a front view of the pen case device compatible with multiple specifications of pen refills, b is a side view, and c is an exploded view of the locking portion and the sliding portion.
[0029] Figure 2 1 is a schematic diagram of the deformation of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention when pressed, wherein a is a schematic diagram of the deformation before pressing, and b is a schematic diagram of the deformation after the pressing force F is applied.
[0030] Figure 3 These are three views of the locking portion and sliding portion of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a front view of the locking portion and the sliding portion, b is a side view of the locking portion and the sliding portion, and c is a top view of the locking portion and the sliding portion.
[0031] Figure 4 2 is a schematic diagram of the dimensions of a pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a schematic front view of the dimensions of the pen case device compatible with multiple specifications of pen refills, and b is a schematic side view of the dimensions.
[0032] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, this embodiment provides a pen case device 100 compatible with multiple specifications of pen refills, including: a pen case 1, a sliding part 2, a locking part 3, a pen tail 4 and a rubber pad 5.
[0033] The pen housing 1 has an opening in the section corresponding to the movement trajectory of the locking portion 3. The pen housing 1 also has a writable area reference line 11. When the pen refill reaches this line, it indicates that the pen refill is properly positioned. The position of this line 11 can be adjusted according to actual needs.
[0034] The locking portion 3 is connected to the sliding portion 2 and is used to fix the pen core.
[0035] Figure 5 This is a schematic diagram of the dimensions of the lock shell in the pen shell device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the lock shell, b is a schematic top view of the dimensions of the lock shell, and c is a schematic front view of the dimensions of the lock shell.
[0036] Figure 6 This is a schematic diagram of the dimensions of the pressing member in the pen case device compatible with multiple specifications of pen refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the pressing member, b is a front view schematically showing the dimensions of the pressing member, c is a side view schematically showing the dimensions of the pressing member, and d is a top view schematically showing the dimensions of the pressing member.
[0037] Figure 7 Schematic diagram of the dimensions of a spring piece in a pen case device compatible with multiple specifications of refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the spring piece, b is a top view schematically showing the dimensions of the spring piece, c is a side view schematically showing the dimensions of the spring piece, d is a front view schematically showing the dimensions of the spring piece, and e is a schematic diagram of the dimensions of the spring.
[0038] like Figure 5 、 Figure 6 and Figure 7 As shown, the locking portion 3 includes a locking shell 31 , a pressing member 32 , a spring sheet 33 and a spring 34 .
[0039] In this embodiment, the units in the dimension diagrams are all millimeters.
[0040] The pressing member 32 is connected to the lock housing 31 and is configured to be pressed by a user.
[0041] The spring piece 33 is connected to the pressing member 32 and is used to tightly engage the sliding portion 2 . The front end of the spring piece 33 has a protrusion, and there are at least two spring pieces 33 .
[0042] The spring 34 is connected to the spring piece 33 and is used to enable the pressing member 32 to return to its original position after applying pressure to the spring piece 33 .
[0043] Figure 8This is a schematic diagram of the dimensions of the slider and the refill pusher block in a pen case device compatible with multiple specifications of refills in an embodiment of the present invention, wherein a is a three-dimensional diagram of the slider and the refill pusher block, b is a front view schematically showing the dimensions of the slider and the refill pusher block, c is a side view schematically showing the dimensions of the slider and the refill pusher block, and d is a top view schematically showing the dimensions of the slider and the refill pusher block.
[0044] like Figure 8 As shown, the sliding portion 2 is arranged inside the pen housing 1 and is used to adjust the position of the pen core.
[0045] The sliding part 2 includes a slide rail 21 , a slider 22 , and a lead pushing block 23 .
[0046] The slide rail 21 is disposed within the pen housing 1; the slide rail 21 comprises two tracks, each of which is constructed from a series of smaller tracks, each of which has a positioning hole. When the rear end of the spring plate 33 is free of force, the protrusion at the front end of the spring plate 33 engages tightly with the positioning hole on each of the smaller tracks of the slide rail 21. When the rear end of the spring plate 33 is subjected to pressure from a pressing member, the protrusion at the front end of the spring plate 33 disengages from the positioning hole on the slide rail 21. At this point, the slide rail 21 slides up and down, adjusting the vertical position of the pen refill within the pen housing. Once the pen refill is adjusted to the desired position, the pressure on the rear end of the spring plate 33 is stopped, and the protrusion at the front end of the spring plate 33 reengages tightly with the positioning hole on the slide rail 21, securing the pen refill in its vertical position.
[0047] The slider 22 is connected to the spring 34 and is used to move on the slide rail 21 when the user presses the pressing part 32. Sliding grooves are also provided on both sides of the slider, which respectively engage with the two tracks of the slide rail 21. The slider 22 is subjected to force and the two tracks of the slide rail 21 rub against each other to complete the movement. Among them, there are protrusions on both sides of the spring sheet 33, and there are positioning grooves on the slider 22. The protrusions on both sides of the spring sheet 33 are inserted into the positioning grooves, fixing the spring sheet 33 on the slider 22 to drive the locking part 3 to move. Among them, the slider 22 also includes: a protrusion 221, which is provided on the top of the slider 22 and is used to fix the position of the spring 34. The spring 34 is sleeved in the protrusion 221 to fix the position of the spring 34.
[0048] Figure 9 Schematic diagrams of two structures of the refill pusher block in a pen case device compatible with refills of multiple specifications in an embodiment of the present invention, wherein a is a transverse fixing structure of the refill pusher block, and b is a longitudinal fixing structure of the refill pusher block.
[0049] like Figure 9 As shown, the refill pusher 23 is connected to the slider 22 and is used to move on the slide rail 21 under the drive of the slider 22, and push the refill to the target area when it contacts the refill. The refill pusher 23 also includes a fixing groove, which is provided with grooves of different diameters. The grooves are arranged from shallow to deep according to the diameter size. The smaller the diameter, the deeper the groove, which is used to match and fix refills of different diameters. Figure 9 When the pen core is in the slot shown in the upper part, it is locked in the corresponding slot according to the diameter. The pen core push block 23 exerts downward pressure on the pen core due to its tight fit in the positioning hole. The friction between the slot and the pen core makes the left and right positions of the pen core fixed. Figure 9 When the pen refill is positioned in the slot shown in the lower part, it fits into the corresponding slot according to its diameter. The slot restricts the pen refill so that its left and right position is fixed. The transverse fixing structure a and the longitudinal fixing structure b of the pen refill pusher play the same positioning role.
[0050] The pen tail 4 is connected to the opening of the pen housing 1 for limiting the position. When the pen tail 4 is set at the opening of the pen housing 1, the movement of the lock part 3 on the slide rail 21 is restricted by the pen tail 4, preventing the lock part 3 from falling off the slide rail 21.
[0051] The rubber pad 5 is arranged inside the pen housing 1 and is used to fix the head of the pen core to prevent the head of the pen core from shaking.
[0052] When using the pen case device 100 compatible with multiple specifications of pen refills of the present invention, the pen refill is placed in the pen case 1, and the pen refill is clamped into the corresponding slot of the pen refill push block 23 according to the diameter of the pen refill to complete the left and right position fixation of the pen refill. The user then applies pressure to the pressing member 32, and the rear end of the spring piece 33 is subjected to pressure from the pressing member 32. The protrusion at the front end of the spring piece 33 disengages from the positioning hole of the slide rail 21. The slider 22 is subjected to force and rubs against the two tracks of the slide rail 21 to complete the movement. When it moves to the reference line of the writable area, the pressure on the rear end of the spring piece 33 is stopped, and the protrusion at the front end of the spring piece 33 is again tightly fastened in the positioning hole of the track of the slide rail 21 to complete the fixation of the pen refill in the upper and lower positions.
[0053] Functions and Effects of the Embodiments
[0054] The pen case device compatible with multiple specifications of pen refills according to the present embodiment comprises: a pen case; a sliding portion arranged inside the pen case for adjusting the position of the pen refill; a locking portion connected to the sliding portion for fixing the pen refill; wherein the locking portion comprises: a locking shell; a pressing member connected to the locking shell for being pressed by a user; a spring sheet connected to the pressing member for tightly locking the sliding portion; a spring connected to the spring sheet for causing the pressing member to reset after applying pressure to the spring sheet; the sliding portion comprises: a slide rail arranged inside the pen case; a slider connected to the spring for moving on the slide rail when the user presses the pressing member; a pen refill push block connected to the slider for moving on the slide rail driven by the slider and pushing the pen refill to a target area when abutting against the pen refill. Therefore, the pen case device compatible with multiple specifications of pen refills of the present invention can flexibly adapt to pen refills of different specifications and types, providing a better user experience.
[0055] This embodiment also includes a pen tail for limiting the position and preventing the locking part from falling off the slide rail.
[0056] This embodiment also includes a rubber pad for fixing the head of the pen core to prevent the head of the pen core from shaking.
[0057] This embodiment also provides different types of slots on the fixing slot of the refill pusher, so as to fix the left and right positions of the refill in a variety of ways.
[0058] The slider of this embodiment is also provided with a protrusion for fixing the position of the spring.
[0059] In this embodiment, the spring sheet has protrusions on both sides, and the slider has positioning grooves. The protrusions on both sides of the spring sheet are inserted into the positioning grooves to fix the spring sheet on the slider.
[0060] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pen case device compatible with multiple specifications of pen refills, characterized in that: include: Pen case; A sliding portion, disposed inside the pen housing, for adjusting the position of the pen core; A locking portion connected to the sliding portion and used to fix the pen core; Wherein, the locking portion includes: Locking housing; A pressing piece connected to the lock shell and configured to be pressed by a user; a spring sheet connected to the pressing member and used for fastening the sliding portion; a spring connected to the spring sheet and configured to enable the pressing member to reset after applying pressure to the spring sheet; The sliding portion includes: A slide rail is provided inside the pen housing. a slider connected to the spring and configured to move on the slide rail when a user presses the pressing member; The pen core pushing block is connected to the slider and is used for moving on the slide rail under the drive of the slider, and pushing the pen core to move to the target area when it abuts against the pen core.
2. The pen case device compatible with multiple specifications of pen refills according to claim 1, characterized in that: in, A plurality of positioning holes are provided on the track of the slide rail.
3. The pen case device compatible with multiple specifications of pen refills according to claim 2, characterized in that: in, The front end of the spring sheet has a protrusion, and there are at least two spring sheets. When the rear end of the spring sheet is not subjected to force, the protrusion at the front end of the spring sheet is tightly buckled in the positioning hole of the slide rail; When the rear end of the spring piece is subjected to pressure from the pressing member, the protrusion at the front end of the spring piece is separated from the positioning hole of the slide rail.
4. The pen case device compatible with multiple specifications of pen refills according to claim 1, characterized in that: in, The spring sheet is provided with protrusions on both sides, and the slider is provided with a positioning groove. The protrusions on both sides of the spring sheet are inserted into the positioning grooves to fix the spring sheet on the slider.
5. The pen case compatible with multiple specifications of pen refills according to claim 1, characterized in that: in, The slider further includes a bump disposed on the top of the slider for fixing the position of the spring.
6. The pen case compatible with multiple specifications of pen refills according to claim 1, characterized in that: in, The refill pushing block further comprises a fixing groove, on which slots of different diameters are provided for matching and fixing refills of different diameters.
7. The pen case compatible with multiple specifications of pen refills according to claim 1, characterized in that: in, The pen shell is provided with an opening in a section corresponding to the movement track of the locking portion.
8. The pen case compatible with multiple specifications of pen refills according to claim 1, characterized in that: Also includes: The pen tail is connected to the opening of the pen shell and is used for limiting the position.
9. The pen case compatible with multiple specifications of pen refills according to claim 1, characterized in that: Also includes: The rubber pad is arranged inside the pen shell and is used to fix the head of the pen core to prevent the head of the pen core from shaking.