Double-end pen
By using a staggered pen slot and locking mechanism design, the problems of insufficient ink capacity and poor compatibility of existing double-ended pens are solved, resulting in a longer service life and greater ease of use.
Patent Information
- Application Number
- CN202520301365.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing dual-ended pens use a coaxial refill design, which results in insufficient ink capacity, short lifespan, poor compatibility, and requires users to frequently replace refills at high cost.
The design incorporates sliding and locking components, with the first and second pen slots positioned in opposite directions to increase the pen lead length. The locking component ensures pen lead stability and optimizes the pen lead layout to improve ink capacity and ease of use.
It extends the lifespan of the double-ended pen, reduces the need for frequent refill replacements, improves the writing experience and compatibility, and lowers the cost of use.
Smart Images
Figure CN223778088U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stationery technical field more specifically, relate to a double -end pen. BACKGROUND
[0002] The existing double -end pen generally adopts coaxial arrangement on the layout of the pen core, that is, the pen core at both ends shares a pen core axis. Although this design method can simplify the structure and reduce the complexity of design and manufacture, it also brings a series of restrictions in use. First of all, since the pen core at both ends needs to share an axis, the length of the pen core is limited, and usually only a shorter pen core can be used. This directly leads to the shortage of ink capacity, shortens the service life of the double -end pen, and when writing for a long time, the user may feel the trouble of frequent replacement of the pen core. In addition, the size problem of the short pen core makes the double -end pen have poor compatibility. Since the conventional replacement core on the market cannot adapt to these specific size short pen cores, the user often needs to purchase a special replacement core when replacing the pen core, which undoubtedly increases the use cost. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the related art to some extent. Therefore, the utility model embodiment provides a double -end pen, which optimizes the pen core layout of the double -end pen through the design of the sliding part and the locking part, increases the ink capacity and prolongs the service life, ensures the stability of the pen core at the same time, improves the writing experience, and improves the adaptability and use convenience.
[0004] The technical scheme adopted by the utility model is as follows: a double -end pen is provided, which comprises:
[0005] A hollow pen shell;
[0006] A locking part is arranged on the surface of the pen shell and can be limited to move;
[0007] A sliding part is arranged inside the pen shell and can slide relatively, the two sides of the sliding part are respectively provided with a first pen slot and a second pen slot, and the locking part is used to drive the sliding part to move in the pen shell;
[0008] A first pen core is elastically arranged at one end in the pen shell, and the inner end abuts in the first pen slot;
[0009] A second pen core is elastically arranged at the other end in the pen shell, and the inner end abuts in the second pen slot, and the first pen slot and the second pen slot are arranged in opposite positions.
[0010] With the above structure, the refill is no longer restricted by the coaxial layout, but the layout of the two-end refill is more flexible through the design of the sliding member, specifically, the first pen slot and the second pen slot are arranged in a staggered manner on the two sides of the sliding member, and the axially coincident part of the first pen slot and the second pen slot can accommodate a longer refill. The longer refill means a larger ink capacity, greatly prolongs the service life of the double-head pen, reduces the need for frequent replacement of the refill, and improves the writing experience.
[0011] Secondly, through the limiting of the locking member on the pen shell, the refill can be stably positioned in the pen shell, preventing the refill from moving or loosening due to the reaction force during writing, and ensuring the smoothness and accuracy of writing. Through the movement of the locking member on the pen shell, the sliding member is driven to move inside the pen shell, and then the writing end of the first refill or the second refill is extended out of the pen shell for writing.
[0012] Overall, the utility model provides a more efficient, economical and comfortable double-head pen design, solves the deficiencies of traditional double-head pens in ink capacity, adaptability and use convenience, and has great market application potential.
[0013] According to an embodiment of the utility model, the first pen slot and / or the second pen slot has a guide portion for guiding the insertion of the inner end of the replacement refill into the corresponding pen slot. When the ink of the first refill or the second refill is consumed, the replacement refill is needed to replace the old refill. When replacing, the tail of the replacement refill is inserted into the pen shell. The guide portion is used to guide the insertion of the replacement refill into the space formed by the first pen slot and / or the second pen slot and the inner wall of the pen shell, facilitating operation.
[0014] According to an embodiment of the utility model, the first pen slot and / or the second pen slot is provided with a limiting portion with a circular arc cross section. The outer periphery of the first refill and / or the second refill abuts against the inner wall of the limiting portion, thereby limiting the radial movement of the refill. The outer periphery of the inner end of the replacement refill abuts against the inner arc surface of the limiting portion, thereby limiting the shaking of the inner end of the replacement refill during writing, improving the writing experience.
[0015] According to an embodiment of the utility model, the first pen slot and / or the second pen slot is provided with an abutting portion. The inner end of the first refill and / or the second refill abuts against the side surface of the abutting portion, and the outer periphery of the abutting portion abuts against the inner wall of the pen shell, for stable sliding of the sliding member in the pen shell. That is, the abutting portion has two functions. One function is to abut against and limit the inner end of the first refill, the second refill or the replacement refill of both. The other function is to make the sliding member abut against the inner wall of the pen shell, so that the sliding member stably slides inside the pen shell, reducing the shaking during sliding.
[0016] According to one embodiment of the utility model, the abutting part is located at both ends of the sliding part to reduce the swing of the sliding part in the pen shell, thereby improving the stability and smoothness of the sliding part; and / or
[0017] The inner side surface of the abutting part constitutes part of a guide part, plays a role of guiding the insertion of the refill, optimizes the design of the sliding part, reduces friction, improves the stability and durability of use, thereby saving the manufacturing cost of the sliding part and enhancing the overall performance.
[0018] According to one embodiment of the utility model, the first pen slot and the second pen slot are centrally symmetrically arranged to optimize the structure of the sliding part and reduce the volume of the sliding part; and / or
[0019] The sliding part is provided with a second clamping groove, and the second clamping groove is connected with the locking part through a connecting part.
[0020] According to one embodiment of the utility model, the pen shell is connected with a sliding sleeve, the locking part is movably arranged in the sliding sleeve in a limited manner, and the sliding sleeve plays a guiding and limiting role for the movement of the locking part; and / or
[0021] The connecting part is slidably mounted in the sliding sleeve, and the connecting part is provided with a second buckle matched with the second clamping groove; and / or
[0022] The pen shell or the sliding sleeve is provided with a plurality of positioning grooves, the locking part is floatingly mounted on the surface of the connecting part, and the locking part is provided with a positioning block matched with the positioning grooves; when the positioning block is clamped into the locking part, the limiting of the locking part on the pen shell is completed.
[0023] According to one embodiment of the utility model, when the positioning block is located in one of the positioning grooves, the writing end of the first refill or the second refill extends from one end of the pen shell; and / or
[0024] When the positioning block is located in the other positioning groove, the writing end of the first refill and the second refill is retracted into the pen shell.
[0025] According to one embodiment of the utility model, a first elastic part is arranged between the connecting part and the locking part, and the first elastic part has an elastic tendency of keeping the positioning block matched with the positioning groove; and / or
[0026] Second elastic parts are arranged between the first refill, the second refill and the pen shell, and the second elastic parts have an elastic tendency of retracting the writing end of the corresponding refill into the pen shell.
[0027] According to one embodiment of the utility model, the pen shell comprises a hollow pen barrel and two pen heads, and the two pen heads are detachably mounted at both ends of the pen barrel; and / or
[0028] The pen barrel is provided with a mounting groove, and a first clamping groove is arranged on the bottom wall of the mounting groove. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0030] Figure 1 It is a perspective view of the double-head pen in the embodiment of the present application.
[0031] Figure 2 It is a sectional view of the double-head pen in the embodiment of the present application.
[0032] Figure 3 It is a structural schematic view of the double-head pen in the embodiment of the present application.
[0033] Figure 4 It is an exploded view of the double-head pen in the embodiment of the present application.
[0034] Figure 5 It is a structural schematic view of the pen shell in the embodiment of the present application.
[0035] Figure 6 It is a perspective view of the sliding member in the embodiment of the present application.
[0036] Figure 7 It is a perspective view of the sliding sleeve in the embodiment of the present application.
[0037] Figure 8 It is a partial structural schematic view of the double-head pen in the embodiment of the present application.
[0038] Figure 9 It is a connection schematic view of the locking member in the embodiment of the present application.
[0039] Figure 10 It is an exploded view of the locking member, the connecting member and the first elastic member in the embodiment of the present application.
[0040] Figure 11 It is a semi-sectional perspective view of the pen shell, the connecting member and the sliding sleeve in the embodiment of the present application.
[0041] Explanation of reference numerals in the drawings:
[0042] 1, pen shell; 2, locking piece; 3, sliding piece; 4, first pen core; 5, second pen core; 6, connecting piece; 7, sliding sleeve; 8, first elastic piece; 9, second elastic piece;
[0043] 11, pen barrel; 12, pen head;
[0044] 11a, mounting groove; 11b, first clamping groove; 11c, through groove;
[0045] 21, positioning block;
[0046] 31, connecting groove; 32, first pen slot; 33, second pen slot; 34, second clamping groove;
[0047] 32a, guide portion; 32b, limiting portion; 32c, abutting portion;
[0048] 61, body; 62, guide portion; 63, boss;
[0049] 61a, spring accommodating groove; 63a, second clamping buckle;
[0050] 71, first clamping buckle; 72, positioning groove. DETAILED DESCRIPTION
[0051] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application. EMBODIMENT
[0052] As Figures 1-11 shown, a double-head pen is disclosed in the present embodiment, comprising:
[0053] a hollow pen shell 1;
[0054] a locking piece 2 arranged on the surface of the pen shell 1 and capable of being limited to move;
[0055] a sliding piece 3 arranged inside the pen shell 1 and capable of being relatively slid, both sides of the sliding piece 3 are respectively provided with a first pen slot 32 and a second pen slot 33, and the locking piece 2 is used to drive the sliding piece 3 to move in the pen shell 1;
[0056] a first pen core 4 elastically arranged in one end of the pen shell 1, and the inner end of the first pen core 4 abuts in the first pen slot 32;
[0057] a second pen core 5 elastically arranged in the other end of the pen shell 1, and the inner end of the second pen core 5 abuts in the second pen slot 33, and the first pen slot 32 and the second pen slot 33 are oppositely arranged.
[0058] Further, in combination with Figure 4 As shown in the figure, in the present embodiment, the pen shell 1 comprises a hollow pen barrel 11 and two pen tips 12, which are threadedly connected to the two ends of the pen barrel 11. A mounting groove 11a is provided at the middle of the pen barrel 11 in the axial direction, which is in the shape of a waist circle in the present embodiment. The bottom of the mounting groove 11a is provided with a first clamping groove 11b and a through groove 11c, which penetrates the inside and outside of the pen shell 1.
[0059] Further, in the present embodiment, the double-head pen further comprises a sliding sleeve 7, the bottom of which is provided with a first clamping buckle 71, and the sliding sleeve 7 is detachably mounted in the mounting groove 11a through the clamping buckle 71 and the clamping connection of the first clamping buckle 71 and the first clamping groove 11b. The outer peripheral wall of the sliding sleeve 7 is adapted to the inner peripheral wall of the mounting groove 11a, and the inner peripheral wall of the sliding sleeve 7 is also in the shape of a waist circle. In the present embodiment, the locking member 2 is a sliding button in the shape of a waist circle, and the outer peripheral wall of the locking member 2 is slidably matched with the inner peripheral wall of the sliding sleeve 7.
[0060] Further, in combination with Figure 6 As shown in the figure, in the present embodiment, the sliding member 3 is in the shape of a long strip, which has two opposite sides. A connecting groove 31 is provided on the surface of the middle position of the sliding member 3, a first pen groove 32 is provided on one side of the sliding member 3, and a second pen groove 33 is provided on the other side, which are centrally symmetrically arranged.
[0061] Further, in the present embodiment, the first pen groove 32 and the second pen groove 33 both have a guide part 32a for guiding the insertion of the inner end of the replacement core into the corresponding pen groove. The first pen groove 32 and / or the second pen groove 33 are provided with a limiting part 32b in the shape of a circular arc, the outer peripheral surface of the first pen core 4 and / or the second pen core 5 abuts against the inner wall of the limiting part 32b, so as to limit the radial movement of the pen core. The first pen groove 32 and / or the second pen groove 33 are provided with an abutting part 32c, the inner end of the first pen core 4 and / or the second pen core 5 abuts against the side surface of the abutting part 32c, and the outer peripheral surface of the abutting part 32c abuts against the inner wall of the pen shell 1, which is used for the smooth sliding of the sliding member 3 in the pen shell 1.
[0062] Further, in combination with Figure 6As shown, the first pen slot 32 is divided into three parts along the length direction of the sliding member 3, from right to left, the guiding part 32a, the limiting part 32b and the abutting part 32c in turn, the space containing the first refill 4 composed of the guiding part 32a, the limiting part 32b and the abutting part 32c is arranged obliquely, that is, the space is not parallel to the length direction of the sliding member 3. Correspondingly, since the first pen slot 32 is centrally symmetrical with the second pen slot 33, the sliding member 3 is rotated by one hundred and eighty degrees, and the second pen slot 33 is divided into three parts along the length direction of the sliding member 3, from right to left, the guiding part 32a, the limiting part 32b and the abutting part 32c in turn, the space containing the second refill 5 composed of the guiding part 32a, the limiting part 32b and the abutting part 32c is arranged obliquely, that is, the space is not parallel to the length direction of the sliding member 3.
[0063] Further, in the embodiment, the cross section of the limiting part 32b perpendicular to the length direction thereof is arc-shaped, since the replacement core of the conventional ballpoint pen or the neutral pen on the market is cylindrical, the arc-shaped limiting part 32b can better fit the outer wall of the replacement core.
[0064] Further, in the embodiment, the guiding part 32a is an inclined curved surface. Figure 6 As shown, in the embodiment, the abutting part 32c of the second pen slot 33 towards one side of the first pen slot 32 constitutes a part of the guiding part 32a of the first pen slot 32, and the limiting part 32b of the second pen slot 33 towards one side of the first pen slot 32 constitutes a part of the guiding part 32a of the first pen slot 32. Similarly, the abutting part 32c of the first pen slot 32 towards one side of the second pen slot 33 constitutes a part of the guiding part 32a of the second pen slot 33, and the limiting part 32b of the first pen slot 32 towards one side of the second pen slot 33 constitutes a part of the guiding part 32a of the second pen slot 33.
[0065] Specifically, in combination with Figures 6-11The abutting portion 32c is located at both ends of the sliding member 3 to reduce the swing of the sliding member 3 in the pen shell 1, thereby improving the stability and smoothness of the sliding member 3. The sliding member 3 is provided with a second clamping groove 34, more specifically, the second clamping groove 34 is arranged in the connecting groove. The second clamping groove 34 is connected with the locking member 2 through the connecting member 6. The pen shell 1 is connected with a sliding sleeve 7. The locking member 2 is movably arranged in the sliding sleeve 7. The sliding sleeve 7 guides and limits the movement of the locking member 2. The connecting member 6 is slidably arranged in the sliding sleeve 7. The connecting member 6 is provided with a second clamping buckle 63a which is matched with the second clamping groove 34. The pen shell 1 or the sliding sleeve 7 is provided with a plurality of positioning grooves 72. The locking member 2 is floatingly arranged on the surface of the connecting member 6. The locking member 2 is provided with a positioning block 21 which is matched with the positioning groove 72. When the positioning block 21 is located in one of the positioning grooves 72, the writing end of the first pen core 4 or the second pen core 5 extends from one end of the pen shell 1. When the positioning block 21 is located in another positioning groove 72, the writing ends of the first pen core 4 and the second pen core 5 are both retracted into the pen shell 1.
[0066] Specifically, the first elastic member 8 is arranged between the connecting member 6 and the locking member 2. The first elastic member 8 has an elastic tendency to keep the positioning block 21 matched with the positioning groove 72. The second elastic member 9 is arranged between the first pen core 4, the second pen core 5 and the pen shell 1. The second elastic member 9 has an elastic tendency to retract the writing end of the corresponding pen core into the pen shell 1.
[0067] Further, in combination with the above-mentioned embodiments, the connecting member 6 is provided with a first clamping buckle 63b which is matched with the first clamping groove 32. Figures 10-11 As shown, in the present embodiment, the connecting member 6 includes a waist-circular body 61, a boss 63 protruding from the upper surface of the body 61, and a guide portion 62 protruding from the lower surface of the body 61. The guide portion 62 has a second clamping buckle 63a and is slidably matched with the through groove 11c. The second clamping buckle 63a is clamped with the second clamping groove 34 in the connecting groove 31. The outer peripheral wall of the body 61 is slidably matched with the inner peripheral wall of the sliding sleeve 7. The boss 63 has two spring accommodating grooves 61a. The first elastic member 8 is matched with the spring accommodating groove 61a. The boss 63 is slidably matched with the locking member 2. The upper end of the first elastic member 8 abuts against the locking member 2, so that the locking member 2 is floatingly arranged on the surface of the connecting member 6.
[0068] Further, the outer side wall of the locking member 2 is provided with the positioning block 21. The lower edge of the sliding sleeve 7 has three positioning grooves 72. When the positioning block 21 is matched with the middle positioning groove 72, the locking member 2 is located in the middle position of the sliding sleeve 7. The sliding member 3 is located in the middle position of the pen shell 1. The first pen core 4 and the second pen core 5 are both retracted into the pen head 12. When the positioning block 21 is matched with the left positioning groove 72, the writing end of the first pen core 4 extends from the left end of the pen shell 1. When the positioning block 21 is matched with the right positioning groove 72, the writing end of the second pen core 5 extends from the right end of the pen shell 1. Figure 4As shown, when the positioning block 21 cooperates with the positioning groove 72 on the left side, the locking member 2 is located at the left side of the sliding sleeve 7, the sliding member 3 is located at the left side in the pen shell 1, the writing end of the first pen core 4 extends out of the pen head 12, the second pen core 5 is retracted into the pen shell 1 under the action of the second elastic member 9 and follows the sliding member 3, at this time, only the first pen core 4 can be used for writing.
[0069] Further, in the embodiment, the number of the first elastic members 8 is two, and the first elastic members 8 are arranged at intervals along the length direction of the locking member 2, so as to balance the locking member 2, the first elastic member 8 is a spiral spring, and in other embodiments, the first elastic member 8 is a cylindrical structure made of elastic material. Similarly, in the embodiment, the second elastic member 9 is a spiral spring, one end of the second elastic member 9 abuts against the pen head 12, and the other end abuts against the shoulder of the first pen core 4 or the second pen core 5.
[0070] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0071] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0072] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's interaction relationship, unless another definite limitation.For ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.
[0073] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the utility model, and the ordinary skilled person in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.
Claims
1. A double ended pen characterized by, The utility model relates to a pen with replaceable refill, comprising: a hollow pen barrel; a locking member movably arranged on the surface of the pen barrel; a sliding member movably arranged inside the pen barrel, the sliding member having a first pen slot and a second pen slot on both sides, and the locking member being used to drive the sliding member to move inside the pen barrel; a first refill elastically arranged at one end of the pen barrel, the inner end of the first refill abutting against the first pen slot; a second refill elastically arranged at the other end of the pen barrel, the inner end of the second refill abutting against the second pen slot, and the first pen slot and the second pen slot being oppositely arranged.
2. A double ended pen according to claim 1, wherein: The first pen slot and / or the second pen slot have a guide portion for guiding the inner end of the replacement refill to be inserted into the corresponding pen slot.
3. A double ended pen according to claim 1, wherein: The first pen slot and / or the second pen slot have a limiting portion with a circular arc cross section, the outer circumferential surface of the first refill and / or the second refill abutting against the inner wall of the limiting portion, thereby limiting the radial movement of the refill.
4. A double ended pen according to claim 1, wherein: The first pen slot and / or the second pen slot have an abutting portion, the inner end of the first refill and / or the second refill abutting against the side surface of the abutting portion, and the outer circumferential surface of the abutting portion abutting against the inner wall of the pen barrel, for the sliding member to smoothly slide inside the pen barrel.
5. A double-ended pen according to claim 4, wherein: The abutting portion is located at both ends of the sliding member; and / or The inner side surface of the abutting portion constitutes part of the guide portion.
6. A double-ended pen according to any one of claims 1-5, wherein: The first pen slot and the second pen slot are centrally symmetrically arranged; and / or The sliding member has a second clamping groove in the center, and the second clamping groove is connected with the locking member through a connecting member.
7. A double ended pen according to claim 6, wherein: The pen barrel is connected with a sliding sleeve, and the locking member is movably arranged in the sliding sleeve; and / or The connecting member is slidably mounted in the sliding sleeve, and the connecting member has a second clamping buckle matched with the second clamping groove; and / or The pen barrel or the sliding sleeve has a plurality of positioning grooves, the locking member is floatingly mounted on the surface of the connecting member, and the locking member has a positioning block matched with the positioning grooves.
8. A double ended pen according to claim 7, wherein: When the positioning block is located in one of the positioning grooves, the writing end of the first refill or the second refill extends from one end of the pen barrel; and / or When the positioning block is located in the other positioning groove, the writing ends of the first refill and the second refill are both retracted into the pen barrel.
9. A double ended pen according to claim 7, wherein: A first elastic member is arranged between the connecting member and the locking member, and the first elastic member has an elastic tendency to keep the positioning block matched with the positioning grooves; and / or A second elastic member is arranged between the pen barrel and the first refill and the second refill, and the second elastic member has an elastic tendency to retract the writing end of the corresponding refill into the pen barrel.
10. A double ended pen according to claim 1, wherein: The pen barrel comprises a hollow pen barrel and two pen heads, and the two pen heads are detachably mounted at both ends of the pen barrel; and / or The pen barrel is provided with a mounting groove, and a first clamping groove is arranged on the bottom wall of the mounting groove, and the first clamping groove is used to connect with the sliding sleeve.