Writing tool
By designing the core mechanism and core reduction mechanism in the writing tool, the automatic retrieval of the refill is solved, and the problem that the refill is not retracted or the pen tip cover is not closed when not in use is solved, improving the user experience and the life of the equipment.
Patent Information
- Application Number
- CN202420644097.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-29
AI Technical Summary
When existing neutral pens are not in use, the refill core is prone to problems such as not retracting or not closing the pen tip cover, resulting in damage to the refill core or contaminating the storage device.
A writing tool is designed, adopting a core-output mechanism and a core-down mechanism, which pushes the core-output mechanism to protrude and lock the refill by moving the moving body. When the slider moves, the restriction member disengages and abuts, unlocks the locking state, and realizes automatic retrieval of the refill.
It effectively avoids the problem of damage or contamination of the storage device when the refill is not in use, and improves the user experience.
Smart Images
Figure CN222713194U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of stationery products, and in particular to a writing tool. Background Art
[0002] At present, most gel pens on the market are push-type or pull-out type. Push-type gel pens generally have a pushable pen head. By pressing the button on the pen shaft, the pen head can be controlled to retract, making it convenient to write or draw. Pull-out gel pens, on the other hand, have a rotatable or removable pen head cap. When using, you need to open the pen head cap first, then align the pen tip with the position where you need to write, and press the pen head hard to start writing.
[0003] After using a pen, consumers sometimes forget to press the retractor button or forget to put the cap back on. If the pen is dropped from a height, the pen tip will fall to the ground first, which may damage the pen tip and make it impossible to write, resulting in waste. If the pen is placed in a storage device with the retracted pen tip in the storage device, the pen tip will come into contact with the inner wall of the storage device, causing ink to contaminate the inner wall of the storage device, which will also cause great inconvenience to consumers. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a click pen to solve the above problems.
[0005] In order to solve the above technical problems, this application adopts the following technical solutions:
[0006] A writing tool, comprising: a pen housing extending in an axial direction and a pen core received in the pen housing; a pressing body, which is supported in the pen housing so as to move forward and backward in an axial direction within a range between an initial position and a first position at the rear side of the pen housing, and an end of the pressing body is exposed outside the pen housing for axial pressing operation; a core ejection mechanism, wherein the front end of the core ejection mechanism abuts against the pen core, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core ejection mechanism to cause the pen core to protrude from the front end of the pen housing and be in a locked state; a core retracting mechanism, comprising a limiting member and a sliding member, wherein the sliding member Assembled on the outer surface of the core-outlet mechanism, the limiting member is movably arranged between the sliding member and the core-outlet mechanism. When the sliding member moves axially from the second position to the third position, the limiting member is separated from the abutment against the core-outlet mechanism and the locked state is released; when the core-outlet mechanism is in the locked state, the pressing body moves to the first position again to release the locked state of the core-outlet mechanism and retract the pen core into the pen housing; or, when the writing tool is not in normal use, the sliding member moves from the second position to the third position to release the locked state of the core-outlet mechanism and retract the pen core into the pen housing.
[0007] Furthermore, when the writing tool is not in normal use, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
[0008] Furthermore, the writing tool also includes: a connecting part, which is assembled between the sliding part and the core-outing mechanism, and a through hole is provided on its surface. When the writing tool is in a normal use state, the sliding part blocks the through hole, and the limiting part moves from the through hole to the core-outing mechanism to form an abutment against the core-outing mechanism; when the writing tool is not in a normal use state, the sliding part moves to a third position, and the limiting part moves from the through hole to the sliding part to break away from the abutment against the core-outing mechanism, so that the core-outing mechanism is released from a locked state.
[0009] Furthermore, the inner surface of the connecting portion is provided with ribs, and the ribs are used to guide the core-out mechanism to be assembled into the interior of the connecting portion.
[0010] Furthermore, when the writing tool is in a normal use state, the sliding member is located at the second position due to the influence of gravity.
[0011] Furthermore, the core-out mechanism includes: a guide rail with a through groove near the top; when the writing tool is in normal use, the limiting member moves to the through groove under the action of the sliding member to form abutment against the guide rail; when the writing tool is not in normal use, the limiting member approaches the sliding member to release the locked state of the core-out mechanism.
[0012] Furthermore, a guide piece is provided on the outer surface of the guide rail, and the guide piece is used to guide the core shrinking mechanism to be assembled to the outside of the guide rail.
[0013] Furthermore, the core-ejecting mechanism also includes: a rotating wheel having a ratchet structure corresponding to the guide rail; when the writing tool is in normal use, the pressing body pushes the rotating wheel, and under the action of the ratchet structure, the rotating wheel and the guide rail cooperate with each other to put the core-ejecting mechanism in a locked state; when the writing tool is not in normal use, the pen core moves toward the pressing body, driving the guide rail to move toward the pressing body, so that the rotating wheel and the guide rail are in abutment with each other, thereby releasing the locked state.
[0014] Furthermore, the core ejection mechanism also includes: a core press, which is arranged between the rotating wheel and the pressing body; when the writing tool is in normal use, the core press is pushed to move toward the front end of the pen housing and rotate relative to the rotating wheel, so that the core ejection mechanism is in a locked state.
[0015] Furthermore, the pen housing also includes: a pen neck, which has a pen hole at the front end for the pen core to protrude from the front end; a pen shaft, which is connected to the end of the pen cover away from the pen hole and internally accommodates a pressing body, a core-out mechanism and a core-retracting mechanism; a boss is provided inside the front end of the pen neck, and the writing tool also includes an elastic member, which acts on the boss inside the front end of the pen neck and the front end of the pen core respectively.
[0016] It can be seen from the above technical solution that the advantages and positive effects of the writing tool proposed in this application are:
[0017] The present application takes into account that when users are not using writing tools, they usually place the writing tools on a horizontal surface such as a table, or turn the writing tools over to play with them. Therefore, by setting a limiting member and a sliding member of the core retracting mechanism, when the sliding member moves from the second position to the third position, the limiting member disengages from the abutment against the core ejecting mechanism, thereby releasing the locked state, and the refill of the pressing tool is automatically retracted into the pen housing, thereby improving the user experience of using the writing tool and preventing the ink of the refill from contaminating other items. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above content of the present application and the following specific implementation methods will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed for protection.
[0019] Figure 1 is a cross-sectional view of a writing tool provided in an embodiment of the present application;
[0020] Figure 2 is a side view of a pen neck provided in an embodiment of the present application;
[0021] Figure 3 is a side view of the pen holder provided in an embodiment of the present application;
[0022] Figure 4 is a first stereoscopic view of a connecting portion provided in an embodiment of the present application;
[0023] Figure 5 is a second stereoscopic view of the connecting portion provided in an embodiment of the present application;
[0024] Figure 6 is a side view of a connecting portion provided in an embodiment of the present application;
[0025] Figure 7 is a first stereoscopic view of the liner provided in an embodiment of the present application;
[0026] Figure 8 is a second stereoscopic view of the liner provided in an embodiment of the present application;
[0027] Fig. 9 is a front view of the liner provided in an embodiment of the present application;
[0028] Fig.10 It is a schematic diagram of the assembly of the liner and the connector provided in the embodiment of the present application;
[0029] Fig.11 is a first stereoscopic view of a metal ring provided in an embodiment of the present application;
[0030] Fig.12 is a side view of a metal ring provided in an embodiment of the present application;
[0031] Fig.13is a schematic diagram of assembling a metal ring provided in an embodiment of the present application;
[0032] Fig.14 It is a schematic diagram of the assembly of the rotating wheel and the pressing core provided in the embodiment of the present application;
[0033] Fig.15 is a side view of the pressing core provided in an embodiment of the present application;
[0034] Fig.16 is a side view of a rotating wheel provided in an embodiment of the present application;
[0035] Fig.17 It is a partial cross-sectional view of the writing tool provided in an embodiment of the present application.
[0036] The reference numerals are described as follows:
[0037] Writing tools 10;
[0038] Pen neck 100;
[0039] Thread 101;
[0040] Sheath 200;
[0041] Pen 300;
[0042] Rotary wheel 400;
[0043] Small balls 501, 502;
[0044] Metal ring 600;
[0045] Large slope 601;
[0046] Top Hat 700;
[0047] Pressing body 800;
[0048] Press core 900;
[0049] Guide rail 1000;
[0050] Long groove 1001;
[0051] Small groove 1002;
[0052] Chamfer 1003;
[0053] Ratchet 1004;
[0054] Bevel 1005
[0055] Connecting part 1100;
[0056] External steps 1101;
[0057] bevel 1102;
[0058] Round through hole 1103;
[0059] tendon position 1104;
[0060] Inner steps 1105;
[0061] Refill 1200;
[0062] Telescopic spring 1300. DETAILED DESCRIPTION
[0063] The detailed features and advantages of the present application are described in detail in the specific implementation manner below, and the content is sufficient to enable any technical personnel in this field to understand the technical content of the present application and implement it accordingly. According to the description, claims and drawings disclosed in this specification, the technical personnel in this field can easily understand the relevant purposes and advantages of the present application.
[0064] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0065] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.
[0066] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0067] The present application provides a writing tool, which may include: a pen shell extending in the axial direction and a pen core received in the pen shell; a pressing body, which is supported in the pen shell so as to move forward and backward in the axial direction within the range of an initial position and a first position at the rear side of the pen shell, and the end of the pressing body is exposed outside the pen shell for axial pressing operation; a core ejection mechanism, the front end of which abuts against the pen core, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core ejection mechanism to cause the pen core to protrude from the front end of the pen shell and be in a locked state; a core retracting mechanism, which includes a limiting member and a sliding member. The movable member, the sliding member is assembled on the outer surface of the core-outlet mechanism, and the limiting member is movably arranged between the sliding member and the core-outlet mechanism. When the sliding member moves axially from the second position to the third position, the limiting member is separated from the abutment against the core-outlet mechanism and the locking state is released; when the core-outlet mechanism is in the locking state, the pressing body moves to the first position again to release the locking state of the core-outlet mechanism and retract the pen core into the pen housing; or, when the writing tool is not in the normal use state, the sliding member moves from the second position to the third position to release the locking state of the core-outlet mechanism and retract the pen core into the pen housing.
[0068] Exemplarily, the limiting member may be a ball, and the sliding member may be a metal ring, which can be moved forward and backward along the axial direction and assembled on the outer surface of the core-out mechanism. When the metal ring is in the second position, it forms an abutment against the ball, so that the core-out mechanism is in a locked state. When the metal ring moves to the third position, the abutment against the ball is released, so that there is a gap between the ball and the core-out mechanism, thereby realizing that the core-out mechanism is unlocked and the lead is retracted.
[0069] In one embodiment, when the writing tool is not in a normal use state, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
[0070] It can be understood that the writing tool is not in normal use state. The writing tool may be placed flat on a horizontal surface such as a table, so that the angle is zero degrees, or the end of the pen core is away from the horizontal plane, while the pressing body is close to the horizontal plane, and the writing tool is tilted, so that the angle is negative.
[0071] For example, after finishing writing, the user can put the writing tool in an inverted or horizontal state so that the writing tool can automatically complete the core shrinking action.
[0072] In one embodiment, the writing tool may further include: a connecting portion, which is assembled between the sliding member and the core-outing mechanism, and a through hole is provided on its surface. When the writing tool is in a normal use state, the sliding member blocks the through hole, and the limiting member moves from the through hole to the core-outing mechanism to form an abutment against the core-outing mechanism; when the writing tool is not in a normal use state, the sliding member moves to a third position, and the limiting member moves from the through hole to the sliding member to break away from the abutment against the core-outing mechanism, thereby releasing the core-outing mechanism from a locked state.
[0073] In one embodiment, the connecting part may be cylindrical in appearance, with a circle of steps designed in the middle section, and the tail of the pen neck abuts against the outer step of the connecting part. An inclined surface is provided at one end of the outer step of the connecting part, and two round through holes are designed on the inclined surface.
[0074] It can be understood that the round through hole is used to accommodate the ball-shaped limiting member. If the limiting member is other objects, those skilled in the art can change the design of the through hole according to specific needs.
[0075] In one embodiment, a rib is provided on the inner surface of the connecting portion, and the rib is used to guide the core-out mechanism to be assembled into the interior of the connecting portion.
[0076] For example, two ribs are designed inside the connection part. An inner step is designed inside the other end of the outer step of the connection part, and the inner step is flush with one end face of the connection part. The virtual circular diameter of the rib inside the connection part is less than or equal to the inner step of the connection part, guiding the core-outlet mechanism to be assembled inside the connection part to prevent the core-outlet mechanism from detaching.
[0077] In one embodiment, when the writing instrument is in a normal use state, the sliding member is located at the second position due to the influence of gravity.
[0078] In one embodiment, the core-out mechanism includes: a guide rail with a through groove near the top; when the writing tool is in a normal use state, the limiting member moves to the through groove under the action of the sliding member to form abutment against the guide rail; when the writing tool is not in a normal use state, the limiting member approaches the sliding member to release the core-out mechanism from a locked state.
[0079] In one embodiment, a guide member is provided on the outer surface of the guide rail, and the guide member is used to guide the core shrinking mechanism to be assembled to the outside of the guide rail.
[0080] For example, the guide rail has a cylindrical appearance, and the guide member on the outer surface of the guide rail can be a groove. The guide rail is designed with two grooves, wherein one end of the groove is designed with a chamfer, and the chamfer is convenient for assembly. The guide rail is assembled inside the connecting part, and the groove of the guide rail cooperates with the rib position in the connecting part.
[0081] The through groove can be a small groove adapted to the structure of the ball. Two small grooves are designed at 90° relative to the groove of the guide rail, and a large bevel is designed at one end of the small groove to facilitate the movement of the limiting member.
[0082] In one embodiment, the core ejection mechanism also includes: a rotating wheel having a ratchet structure corresponding to the guide rail; when the writing tool is in normal use, the pressing body pushes the rotating wheel, and under the action of the ratchet structure, the rotating wheel and the guide rail cooperate with each other to put the core ejection mechanism in a locked state; when the writing tool is not in normal use, the pen core moves toward the pressing body, driving the guide rail to move toward the pressing body, so that the rotating wheel and the guide rail are in abutment with each other, thereby releasing the locked state.
[0083] In one embodiment, the core ejection mechanism also includes: a core pressing member, which is arranged between the rotating wheel and the pressing body; when the writing tool is in normal use, the core pressing member is pushed to move toward the front end of the pen housing and rotate relative to the rotating wheel, so that the core ejection mechanism is in a locked state.
[0084] In one embodiment, the pen housing also includes: a pen neck, which has a pen hole at the front end for the pen core to protrude from the front end; a pen shaft, which is connected to the end of the pen cover away from the pen hole and internally accommodates a pressing body, a core ejection mechanism and a core retraction mechanism; a boss is provided inside the front end of the pen neck, and the writing tool also includes an elastic member, which acts on the boss inside the front end of the pen neck and the front end of the pen core respectively.
[0085] In one embodiment, the elastic member may be a telescopic spring.
[0086] The entire embodiment will be fully described below.
[0087] like Figure 1 As shown, the writing tool 10 provided in the present application may include a pen neck 100, a sheath 200, a pen barrel 300, a rotating wheel 400, a small ball 501, a metal ring 600, a top cap 700, a pressing body 800, a pressing core 900, a small ball 502, a guide rail 1000, a connecting part 1100, a pen core 1200, and a telescopic spring 1300, totaling 14 parts.
[0088] Please refer to Figure 2 and Figure 3 The refill 1200 can be assembled inside the pen neck 100, and a rib is designed inside one end of the pen neck 100. The telescopic spring 1300 is assembled on the rib inside the pen neck 100, and the telescopic spring 1300 provides elastic force for the refill 1200 to be ejected and locked back. The pen neck 100 is matched with the pen body 300 through the thread 101, and the tail end of the pen neck 100 is designed with a long section inside the pen body 300, which is against the connecting part 1100.
[0089] The sheath 200 may be mounted on the holding portion of the writing instrument 10 to reduce the user's fatigue when using the writing instrument 10 .
[0090] Please refer to Figures 4 to 6The connecting part 1100 is cylindrical in appearance, and a circle of outer steps 1101 are designed in the middle section, and the tail of the pen neck 100 is against the outer step 1101 of the connecting part 1100. A slope 1102 is provided at one end of the outer step 1101 of the connecting part 1100, and two round through holes 1103 are designed on the slope. Two ribs 1104 are designed inside the connecting part 1100. A circle of inner steps 1105 are designed inside the other end of the outer step 1101 of the connecting part 1100, and the inner step 1105 is on the same surface as one end surface of the connecting part 1100. The virtual circular diameter of the ribs 1104 in the connecting part 1100 is less than or equal to the inner step 1105 of the connecting part 1100, so as to prevent the guide rail 1000 from detaching.
[0091] Please refer to Figures 7 to 9 The guide rail 1000 is cylindrical in appearance, and is designed with two long grooves 1001 on the outside of the guide rail 1000. One end of the long groove 1001 is designed with a chamfer 1003. The chamfer 1003 is used to facilitate the assembly of the guide rail 1000 inside the connecting part 1100. The long groove 1001 of the guide rail 1000 cooperates with the rib position 1104 in the connecting part 1100. Two small grooves 1002 are designed at 90° relative to the groove of the guide rail 1000. One end of the small groove 1002 is designed with a large bevel 1005. The guide rail 1000 is designed with a ratchet 1004 inside.
[0092] It can be understood that the specific configuration of the ratchet design is well known to those skilled in the art and will not be described in detail herein.
[0093] Please refer to Fig.10 , the small balls 501 and 502 can be installed in the round holes of the connecting part 1100, because the guide rail 1000 is assembled inside the connecting part 1100. Under the cooperation of the groove of the guide rail 1000 and the rib position inside the connecting part 1100, the small balls 501 and 502 fall into the small groove of the guide rail 1000 through the through hole of the connecting part 1100.
[0094] It can be understood that, with the support of the inner step 1105 of the connecting portion 1100 , the guide rail 1000 can be assembled inside the connecting portion 1100 .
[0095] Please refer to Fig.11 and Fig.12 The material of the metal ring 600 is not limited to metal. The metal ring 600 is in the shape of an I-shaped letter "I". A large inclined surface 601 is designed inside one end, and the end is assembled with the inclined surface 1102 of the connecting portion 1100.
[0096] Please refer to Fig.13When the metal ring 600 at this end abuts against the outer step 1101 of the connecting part, the gap between the large inclined surface 601 of the metal ring 600 and the inclined surface 1102 of the connecting part 1100 is the smallest, and the large inclined surface 601 of the metal ring 600 presses the small balls 501 and 502. When the metal ring 600 retreats, a gap is generated between the metal ring 600 and the connecting part 1100, and the gap is enough for the small balls 501 and 502 to escape from the small groove 1002 of the guide rail 1000.
[0097] Please refer to Figures 14 to 16 The pressing core 900 and the rotating wheel 400 are assembled in the guide rail 1000 .
[0098] It can be understood that the pressing core 900 is arranged between the rotating wheel 400 and the pressing body 800; when the writing tool 10 is in normal use, the pressing core 900 is pushed to move toward the front end of the pen housing and rotate relative to the rotating wheel 400, so that the core ejection mechanism is in a locked state.
[0099] The rotating wheel 400 has a ratchet structure corresponding to the guide rail 1000; when the writing tool 10 is in normal use, the pressing body 800 pushes the rotating wheel 400, and under the action of the ratchet structure, the rotating wheel 400 and the guide rail 1000 cooperate with each other to put the core ejection mechanism in a locked state; when the writing tool 10 is not in normal use, the refill 1200 moves toward the pressing body 800, driving the guide rail 1000 to move toward the pressing body 800, so that the rotating wheel 400 and the guide rail 1000 form abutment, thereby releasing the locked state.
[0100] Please refer to Fig.17 The top cap 700 is assembled on the pen holder 300, and the pressing body 800 cooperates with the pressing core 900. A long section is designed at the bottom of the pressing body 800, and when the pressing body 800 is pressed, the long end can push the guide rail 1000 to move downward.
[0101] It can be understood that when the pressing body 800 is pressed, the pressing body 800 moves downward, which drives the pressing core 900 and the rotating wheel 400 to move downward, and the bottom of the pressing body 800 abuts against the guide rail 1000, thereby driving the guide rail 1000 to move downward, and the metal ring 600 also moves downward under the action of gravity (at this time, the small ball is in the round hole 1103 of the connecting part 1100). While the pressing body 800 continues to press, the small ball falls from the round hole 1103 into the two small grooves 1002 of the guide rail 1000, and the metal ring 600 is in a state of pressing the small ball. At this time, since the connecting part 1100 and the pen body 300 are designed to abut each other with steps, the guide rail 1000, the connecting part 1100 and the pen body 300 are in a state of abutting each other. When the pressing body 800 continues to drive the pressing core 900 and the rotating wheel 400 to move downward, this is the conventional principle of the pressing pen. When the pressing body 800 is pressed to the maximum limit, the pressing core 900 and the rotating wheel 400 realize relative rotation. At this time, the ratchet teeth of the rotating wheel 400 and the ratchet teeth of the guide rail 1000 cooperate with each other to complete the action of ejecting the pen core 1200.
[0102] It can be understood that when the pen body is horizontal or inverted, the metal ring 600 moves a distance toward the pressing body 800 under the action of the large inclined surface 601 inside and the inclined surface 1102 of the guide rail 1000. After the metal ring 600 and the connecting part 1100 are relatively displaced, a certain gap is generated between the metal ring 600 and the connecting part 1100, and the gap is enough for the small ball to escape from the small groove 1002 of the guide rail 1000. The pen core 1200 moves toward the position of the pressing body 800 under the action of the telescopic spring 1300, and at this time drives the rotating wheel 400 to move at the same time. The state of the rotating wheel 400 and the guide rail 1000 is that the ratchet teeth are against each other, thereby driving the guide rail 1000 to move backward, and the core shrinking action is completed at this time.
[0103] The terms and expressions used herein are for descriptive purposes only and the present application should not be limited to these terms and expressions. The use of these terms and expressions does not mean to exclude any equivalent features of the illustrations and descriptions (or parts thereof), and it should be recognized that various modifications that may exist should also be included in the scope of the claims. Other modifications, variations and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.
[0104] Similarly, it should be pointed out that although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.
Claims
1. A writing tool, characterized in that: include: A pen housing extending in the axial direction and a pen core received in the pen housing; A pressing body is supported in the pen housing so as to move forward and backward along the axial direction within a range between an initial position and a first position at the rear side of the pen housing, and an end of the pressing body is exposed outside the pen housing for axial pressing operation; A core ejection mechanism, wherein the front end of the core ejection mechanism abuts against the pen core, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core ejection mechanism to cause the pen core to protrude from the front end of the pen housing and be in a locked state; The core shrinking mechanism comprises a limiting member and a sliding member, wherein the sliding member is assembled on the outer surface of the core-exiting mechanism, and the limiting member is movably arranged between the sliding member and the core-exiting mechanism. When the sliding member moves axially from the second position to the third position, the limiting member is separated from the abutment against the core-exiting mechanism, and the locking state is released; When the core-ejecting mechanism is in a locked state, the pressing body moves to the first position again, unlocks the core-ejecting mechanism and retracts the refill into the pen housing; or, when the writing tool is not in normal use, the sliding member moves from the second position to the third position, unlocks the core-ejecting mechanism and retracts the refill into the pen housing.
2. The writing tool according to claim 1, characterized in that: When the writing tool is not in a normal use state, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
3. The writing tool according to claim 1, characterized in that: The writing instrument also includes: The connecting part is assembled between the sliding part and the core-out mechanism, and has a through hole on its surface. When the writing tool is in a normal use state, the sliding member blocks the through hole, and the limiting member moves from the through hole to the core-out mechanism to form an abutment against the core-out mechanism; When the writing tool is not in a normal use state, the sliding member moves to the third position, and the limiting member approaches the sliding member from the through hole, disengaging from the abutment against the core-out mechanism, so that the core-out mechanism is unlocked.
4. The writing tool according to claim 3, characterized in that: The inner surface of the connecting portion is provided with ribs, and the ribs are used to guide the core-out mechanism to be assembled into the interior of the connecting portion.
5. The writing tool according to claim 1, characterized in that: When the writing instrument is in a normal use state, the sliding member is located at the second position due to the influence of gravity.
6. The writing tool according to claim 1, characterized in that: The core-out mechanism comprises: The guide rail has a through slot near the top; When the writing tool is in a normal use state, the limiting member moves to the through groove under the action of the sliding member to form abutment against the guide rail; When the writing tool is not in a normal use state, the limiting member is close to the sliding member, so that the core ejecting mechanism is released from a locked state.
7. The writing tool according to claim 6, characterized in that: A guide is provided on the outer surface of the guide rail, and the guide is used to guide the core shrinking mechanism to be assembled to the outside of the guide rail.
8. The writing tool according to claim 6, characterized in that: The core-out mechanism also includes: A rotating wheel having a ratchet structure corresponding to the guide rail; When the writing tool is in a normal use state, the pressing body pushes the rotating wheel, and under the action of the ratchet structure, the rotating wheel and the guide rail cooperate with each other, so that the core ejection mechanism is in a locked state; When the writing tool is not in a normal use state, the pen core moves toward the pressing body, driving the guide rail to move toward the pressing body, so that the rotating wheel and the guide rail are in contact with each other, thereby releasing the locking state.
9. The writing tool according to claim 8, characterized in that: The core-out mechanism also includes: A pressing core, disposed between the rotating wheel and the pressing body; When the writing tool is in a normal use state, the core pressing member is pushed to move toward the front end of the pen housing and rotates relative to the rotating wheel, so that the core ejecting mechanism is in a locked state.
10. The writing tool according to claim 1, characterized in that: The pen housing also includes: A pen neck, the front end of which is provided with a pen hole for the pen core to protrude from the front end; A pen holder connected to an end of the pen cap away from the pen hole, and containing the pressing body, the core-exiting mechanism and the core-retracting mechanism; A boss is arranged inside the front end of the pen neck, and the writing tool further comprises an elastic member, which acts on the boss inside the front end of the pen neck and the front end of the pen core respectively.