Multicolor writing pen
By introducing an elastic buffer and a counteracting design between the movable groove and the multicolor writing pen, the vibration and noise problems of the multicolor pen are solved, ensuring smooth writing and environmental quality, and achieving stable switching of the pen refill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-31
AI Technical Summary
Existing multicolor pens lack a cushioning and shock-absorbing structure, resulting in significant vibration when the pen tip comes into contact with the pen barrel. This leads to issues such as loose ball bearings, ink breaks, and noise, affecting writing smoothness and the environment.
Design a multi-color writing pen that uses a pen barrel with a movable groove and at least two sets of push-to-extract units. The push-to-extract unit is provided with an elastic buffer part. The elastic buffer part abuts against the movable groove to reduce vibration and noise, while realizing automatic resetting and alternating extension of the pen tip.
It effectively prevents the ball bearing from loosening, avoids ink interruption, ensures smooth writing, reduces noise, improves the user experience, and achieves smooth and fast refill switching.
Smart Images
Figure CN224060738U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of writing pen technology, and in particular relates to a multi-color writing pen. Background Technology
[0002] For current push-button ballpoint pens with the cap located at the top of the barrel, pressing the cap during use extends or retracts the ink refill into the barrel. During this process, the finger remains pressed against the cap, providing shock absorption and cushioning. This prevents excessive vibration from the ink refill pressing against the barrel during rapid retraction, which could loosen the ball bearing inside the nib and cause ink breaks due to repeated vibration, thus ensuring smooth writing.
[0003] In existing multicolor pen structures, pressing one refill assembly causes the other refill, which was originally extended from the pen barrel, to automatically spring back into the barrel. Because multicolor pens lack a cushioning and shock-absorbing structure, significant vibration occurs when the refill and pen barrel come into contact. This can easily cause the ball bearing inside the nib to loosen, creating a gap between the ball bearing and the nib. Air then enters the refill through this gap and becomes trapped in the ink, leading to ink skipping, uneven writing, and affecting the use of the multicolor pen. Furthermore, the noise generated when the refill and pen barrel come into contact can be quite loud, affecting the writing environment and the user's mood. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a multi-color writing pen that can not only buffer the vibration when the pen tip and the pen barrel come into contact, preventing the pen tip from breaking ink, but also effectively reduce the noise when the pen tip and the pen barrel come into contact, creating a good writing environment.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a multi-color writing pen, including a pen barrel with a movable groove, and at least two sets of push-to-eject units. Each push-to-eject unit includes at least a pen refill, a pressing member connected to the pen refill, and a resetting member. The pressing member has an elastic buffer portion. When an external force is applied, the pressing member of one set of push-to-eject units is driven to compress the resetting member and move relative to the pen barrel. The pressing member of the other set of push-to-eject units can automatically reset with the pen refill until the elastic buffer portion of the pressing member abuts against the top of the movable groove.
[0006] In this invention, an elastic buffer is provided on the pressing component. When the lead-out unit is pressed to reset, the elastic buffer directly abuts against the movable groove, avoiding direct contact between the pressing component and the movable groove. Compared to the significant vibration caused by the pressing component and the pen barrel, which are two rigid materials in existing multicolor pens, the elastic buffer effectively reduces the vibration caused by abutting against the movable groove. Even after multiple lead switching, the ball bearing inside the pen tip will not loosen due to vibration, preventing ink breaks in the multicolor pen and ensuring the smoothness of writing. At the same time, it can effectively reduce the noise generated by abutting against the movable groove, creating a good writing environment. In addition, the automatic reset of one set of lead-out units and the lead extension of another set of lead-out units are carried out simultaneously to avoid interference and ensure smoother and faster switching between different lead types.
[0007] Furthermore, the elastic buffer is shaped like a figure 7, with its lateral portion abutting against the top of the movable groove and its longitudinal portion protruding beyond the movable groove. The lateral portion of the elastic buffer serves to cushion and absorb shock, while the longitudinal protrusion beyond the movable groove facilitates the user to apply external force to press the button, thereby improving the user experience.
[0008] Furthermore, the pressing member includes a body and a protrusion on the outer wall of the body, the protrusion extending into a movable groove, and the elastic buffer extending to the top and outer side of the protrusion. The protrusion slides within the movable groove to limit the sliding path of the pressing member and prevent the pressing member from sliding off course.
[0009] Furthermore, the main body of the pressing component is provided with protruding teeth, and the top of the main body is provided with an inclined working surface. When the pressing component moves downward, the protruding teeth can abut against the inclined working surface of another pressing component to drive the other pressing component to automatically reset with the pen refill. The protruding teeth and the inclined working surface cooperate with each other to realize the switching of different pen refills, and ensure that only one color pen refill is in the infeed state during use, while the other pen refills are retracted into the pen barrel.
[0010] Furthermore, the pressing component is provided with a locking part, and the pen barrel has a stepped surface that can cooperate with the locking part for limiting. The stepped surface acts as a blocking force on the locking part, allowing the pressing component to overcome the elastic force of the reset component and be fixed in the sliding position without moving, ensuring the stability of the pen lead ejection state and preventing the pressing component from disengaging from the limiting position of the stepped surface.
[0011] Furthermore, the inner side of the pressing member has multiple clearance areas. These clearance areas provide clearance space for other body components, preventing them from interfering with the sliding body.
[0012] Furthermore, the pen barrel includes an upper pen barrel, a lower pen barrel, and adapters connecting the upper and lower pen barrels respectively. The reset component is sleeved on the outer periphery of the pen refill, and its two ends abut against the pressing component and the adapter respectively. The two ends of the reset component are abutted by the body and the adapter, which can fix the position of the reset component, so that the position of the reset component remains unchanged during the pen refill ejection and reset process, which facilitates the elastic reset function of the reset component.
[0013] Furthermore, the elastic buffer part is made of rubber. Rubber has good shock absorption and cushioning effect, and the material is simple and easy to process.
[0014] Furthermore, the number of push-to-eject core units is two or more, and the number of movable slots is the same as the number of push-to-eject core units.
[0015] Furthermore, the pen barrel has a receiving cavity for mounting the pen clip and a mounting hole for the pen clip to extend out of the pen barrel. The pen clip includes an assembly section, a transverse section, and a clamping section. The assembly section, transverse section, and clamping section are formed by bending a single metal body. The assembly section is located within the receiving cavity, and at least a portion of the transverse section extends from the mounting hole. The transverse section widens the distance between the pen clip and the pen barrel, providing space for the object to be clamped. The mounting hole provides deformation space for the pen clip, facilitating deformation and clamping.
[0016] The beneficial effects of this utility model are: 1) The pressing part is equipped with an elastic buffer part. When the pressing part is reset, the elastic buffer part abuts against the top of the movable groove. Compared with the existing multicolor pen where the pressing part and the pen barrel are two rigid materials that directly abut against each other, resulting in greater vibration, the elastic buffer part can play a role in buffering and shock absorption, avoiding direct contact between the pressing part and the movable groove. Its soft material can effectively reduce the vibration generated by abutting against the movable groove, preventing the ball in the pen tip from loosening due to vibration, avoiding ink interruption in the multicolor pen, and ensuring the smoothness of writing in the multicolor pen; 2) The elastic buffer part abuts against the top of the movable groove, which can reduce the sound generated by abutting against the movable groove, reduce the impact of noise, and create a good writing environment; 3) The longitudinal extension of the spring buffer part protrudes from the movable groove, making it easier for the user to apply external force to press the pressing part, while improving the user feel; 4) The automatic reset of one set of pressing and refilling units and the extension of the pen refill of another set of pressing and refilling units are carried out simultaneously, ensuring smoother and faster switching between different pen refills. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the multi-color writing pen of this utility model.
[0018] Figure 2 This is a side view of the multi-color writing pen of this utility model.
[0019] Figure 3This is a cross-section of the multi-color writing pen of this utility model. Figure 1 .
[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.
[0021] Figure 5 This is a side view of the push-to-produce core unit in this utility model.
[0022] Figure 6 This is a three-dimensional structural diagram of the push-to-produce core unit in this utility model.
[0023] Figure 7 This is a structural diagram illustrating the usage process of the multi-color writing pen in this utility model.
[0024] Figure 8 This is a partial three-dimensional structural diagram of the multi-color writing pen of this utility model.
[0025] Figure 9 This is a three-dimensional structural diagram of the assembly of the push-to-produce core unit and the adapter in this utility model.
[0026] Figure 10 This is a cross-section of the multi-color writing pen of this utility model. Figure 2 .
[0027] Among them, 1-pen barrel, 11-movable groove, 12-stepped surface, 13-upper pen barrel, 14-lower pen barrel, 15-adapter, 151-through hole, 152-protrusion, 16-accommodating cavity, 17-mounting hole, 2-pressable lead-out unit, 21-pen lead, 22-pressing component, 221-body, 222-protrusion, 223-tooth, 224-inclined action surface, 225-locking part, 226-avoiding area, 23-reset component, 24-elastic buffer part, 3-pen clip, 31-assembly section, 32-lateral section, 33-clamping section. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.
[0029] like Figures 1-4As shown, a multi-color writing pen includes a pen barrel 1 with a movable groove 11 and at least two sets of push-to-eject units 2. Each push-to-eject unit 2 includes at least a pen refill 21, a pressing member 22 connected to the pen refill 21, and a resetting member 23 sleeved on the outside of the pen refill 21. Each set of push-to-eject units 2 corresponds to a pen refill 21 of a certain color. By pressing the pressing member 22 of the push-to-eject unit 2, the pen refill 21 of the corresponding color can be extended from the pen barrel 1.
[0030] The pressing member 22 has an elastic buffer 24. When an external force is applied, one set of pressing members 22 of the core ejection unit 2 is driven. The pressing member 22 compresses the reset member 23 and moves relative to the pen barrel 1. The pressing member 22 of the other set of pressing members 22 can automatically reset and retract the pen refill 21 into the pen barrel 1 until the elastic buffer 24 of the pressing member 22 abuts against the movable groove 11. The pressing member 22 drives the other set of pressing members 2 to reset, which is achieved on the premise that the pen refill 21 of one set of pressing members 2 of the multicolor writing pen has extended out of the pen barrel 1. When no pen refill 21 has extended out of the pen barrel 1, pressing the pressing member 22 will not cause the other set of pressing members 2 of the core ejection unit 2 to automatically reset.
[0031] Specifically, such as Figure 3 , Figure 4 As shown, in the unused state, the pen refills 21 of each set of push-to-eject units 2 are all inside the pen barrel 1. When an external force is applied to press down on the pressing member 22 of one set of push-to-eject units 2, the pressing member 22 moves downward relative to the pen barrel 1 and compresses the reset member 23 until the pen refill 21 extends out of the pen barrel 1. When a different color pen refill 21 is needed, an external force is applied to press down on another set of push-to-eject units 2. The pressing member 22 of this set of push-to-eject units 2 compresses the reset member 23 and moves relative to the pen barrel 1. At this time, the push-to-eject units 2 that were originally extended out of the pen barrel 1 are squeezed by this set of pressing members 22. The pressing member 22 of the original push-to-eject units 2 drives the pen refill 21 to automatically reset until the elastic buffer part 24 of the pressing member 22 abuts against the top of the movable groove 11. The pen refill 21 that was originally extended out of the pen barrel 1 retracts into the pen barrel 1, and at the same time, the pen refill 21 of the other set of push-to-eject units 2 extends out of the pen barrel 1. The automatic reset of the previous set of core ejection unit 2 and the extension of the pen core 21 of the next set of core ejection unit 2 are performed simultaneously to avoid interference and ensure smoother and faster switching between different pen cores 21.
[0032] like Figure 4As shown, the elastic buffer 24 is disposed on the pressing member 22. Its lateral portion can abut against the top of the movable groove 11, and its longitudinal portion protrudes from the movable groove 11. In this embodiment, the elastic buffer 24 is made of rubber. During the process of pressing the core ejection unit 2 to reset, the lateral portion of the elastic buffer 24 abuts against the top of the movable groove 11, avoiding direct contact between the pressing member 22 and the movable groove 11. Compared with the vibration generated by the two hard materials of the pressing member 22 and the movable groove 12 abutting against each other, the soft material of the elastic buffer 24 abuts against the movable groove 12, which plays a shock-absorbing and buffering role. It can effectively reduce the vibration generated by abutting against the movable groove 12, thereby preventing the ball in the pen tip from loosening. It prevents the gap between the ball and the pen tip from causing air to enter the pen core 21 from the pen tip gap and remain in the ink, thus causing the pen core 21 to break ink and writing to be unsmooth.
[0033] Regarding the shock absorption function of writing pens, in existing push-button gel pens where the cap is located at the top of the pen body 1, when the pen refill 21 extends or retracts from the pen body 1, the finger presses against the cap to cushion the return of the pen refill 21. However, in existing multi-color pen designs, since the pen refill 21 is an automatic rebounder, there is no finger to cushion the rebound, and multi-color pens lack shock-absorbing components. When the pen refill 21 rebounds and returns to its original position, the pressing part 22 directly presses against the pen body 1. The contact of the two hard materials generates significant vibration, causing the ball bearing inside the pen tip to loosen. This creates a gap between the ball bearing and the pen tip, allowing air to enter the pen refill 21 through the gap and remain in the ink, resulting in ink breakage and uneven writing.
[0034] In this invention, the elastic buffer 24 plays a shock-absorbing and cushioning role. When the pen refill 21 is reset, the elastic buffer 24 directly contacts the movable groove 11, avoiding the hard contact between the pressing member 22 and the movable groove 12. Even after multiple pen refills 21 are switched, the ball bearing inside the pen refill can still be stably installed without loosening, thus ensuring uniform ink output of the multicolor pen, guaranteeing the smoothness of writing, and extending the service life of the multicolor pen. At the same time, pressing the pressing member 22 of the refill unit 2 will not directly impact the top surface of the movable groove 11. The elastic buffer 24 plays a cushioning role, which can also reduce the sound generated by the pressing member 22 contacting the movable groove 11, reducing the impact of noise and creating a good writing environment. In addition, the longitudinal part of the elastic buffer 24 protrudes from the movable groove 11, making it easier for the user to apply external force to press the pressing member 22, while improving the user experience.
[0035] In this embodiment, the elastic buffer part 24 is in the shape of a "7". Of course, in other embodiments, the elastic buffer part 24 may be in the shape of a "I" and may only be provided on the top of the pressing member 22; or it may be in any other shape, as long as the elastic buffer part 24 abuts against the movable groove 12 when the pressing member 22 is reset. No specific limitation is imposed.
[0036] In addition, the color of the elastic buffer 24 is the same as the color of the pen refill 21, which increases the aesthetics and recognizability of the multi-color writing pen, allowing users to see at a glance the color of the pen refill 21 corresponding to each set of refill units 2, making it easy to switch and use.
[0037] like Figure 5 , Figure 6 As shown, the pressing member 22 includes a body 221 and a protrusion 222 provided on the outer wall of the body 221. The protrusion 222 extends into the movable groove 11, and the elastic buffer 24 extends to the top and outer side of the protrusion 222. The protrusion 222 slides within the movable groove 11 to limit the sliding path of the pressing member 22 and prevent the pressing member 22 from sliding off course.
[0038] The body 221 of the pressing member 22 is provided with protruding teeth 223, and the top of the body 221 is provided with an inclined working surface 224. When the pressing member 22 moves downward, the protruding teeth 223 can abut against the inclined working surface 224 of another pressing member 22, thereby driving the other pressing member 22 to automatically reset the pen refill 21. Specifically, with Figure 7 Taking the direction shown as an example, the bottom surface of the protruding tooth 223 is inclined from bottom to top and from outside to inside, and the inclined action surface 224 is inclined from bottom to top and from inside to outside. When the pressing member 22 moves downward, the protruding tooth 223 can abut against the inclined action surface 224 of another set of pressing members 22 that have already ejected the lead, pushing the pressing member 22 out of the sliding position. Under the action of the reset member 23, the pressed member 22 that has ejected the lead is then driven to automatically reset the pen lead 21. The protruding tooth 223 and the inclined action surface 224 cooperate with each other to realize the switching of different pen leads 21, and ensure that only one color of pen lead 21 is in the ejected state during use, while the other pen leads 21 are retracted into the pen body 1. In addition, the inclined setting of both provides a force guiding effect for the protruding tooth 223, making it easy for the protruding tooth 223 to push the other set of pressing members 22 to reset through the inclined action surface 224.
[0039] Furthermore, such as Figure 6 , Figure 7 As shown, the pressing member 22 is provided with a locking part 225, and the pen barrel 1 is provided with a stepped surface 12 that can be matched with the locking part 225 for limiting. The stepped surface 12 is formed by an inclined indentation from the inside of the pen barrel 1 outward and from top to bottom. The locking part 225 and the stepped surface 12 have the same inclination, which facilitates the locking part 225 to engage with the stepped surface 12. The stepped surface 12 acts as a blocking force on the locking part 225, so that the pressing member 22 can overcome the elastic force of the reset member 23 and be fixed in the sliding position without moving, ensuring the stability of the pen core 21 in the core-out state and preventing the pressing member 22 from disengaging from the limiting position of the stepped surface 12.
[0040] by Figure 7Taking the direction shown as an example, when an external force is applied to press the right-side core ejection unit 2, the external force simultaneously provides downward and leftward forces to the pressing member 22, causing the pressing member 22 to slide downward relative to the pen barrel 1, and the reset member 23 is compressed. When the body 221 slides to the stepped surface 12, the leftward force drives the body 221 to move inward into the pen barrel 1, and causes the locking part 225 to abut against the stepped surface 12. At this time, the pen core 21 of the pressing core ejection unit 2 extends into the pen barrel 1.
[0041] When the left-side ejector unit 2 is pressed, the left-side pressing member 22 moves downward, and the protruding teeth 223 of the left-side body 221 abut against the inclined action surface 224 of the right-side body 221, pushing the right-side pressing member 22 to move to the right. The locking part 225 of the right-side body 221 moves away from the stepped surface 12. Under the elastic force of the reset member 23, the reset member 23 drives the right-side pressing member 22 to automatically reset the pen refill 21. At the same time, the locking part 225 of the left-side body 221 can enter the stepped surface 12 on the left, and the pen refill 21 of the left-side ejector unit 2 extends into the pen barrel 1, completing the switching of different pen refills 21. Similarly, this process applies to the ejection process of other sets of ejector units 2, which will not be described in detail.
[0042] In this embodiment, the number of stepped surfaces 12 inside the pen barrel 1 is the same as the number of locking parts 225 on the body 221, ensuring that each body 221 can abut against the pen barrel 1 during the lead ejection process, thereby fixing the position of the lead 21 after the lead is ejected.
[0043] like Figure 6 As shown, the inner side of the body 221 of the pressing member 22 has multiple clearance areas 226, which are located at the middle position of the inner side of the body 221 and at the lower end of the protrusion 223. These clearance areas 226 provide clearance space for other groups of bodies 221, preventing other groups of bodies 211 from interfering with the sliding body 211. In other words, when a group of pressing members 22 slides out of the core, the clearance areas 226 of other groups of bodies 221 ensure that their respective bodies 221 do not collide with the body 221 to be ejected without force being applied, allowing the locking part 225 of the body 221 to smoothly engage with the stepped surface 12, thereby ensuring the smooth ejection of the body 221.
[0044] like Figure 1 , Figure 8 , Figure 9As shown, the pen barrel 1 includes an upper pen barrel 13, a lower pen barrel 14, and an adapter 15 connecting the upper pen barrel 13 and the lower pen barrel 14 respectively. A reset member 23 is sleeved around the outer periphery of the pen refill 21, and its two ends abut against the pressing member 22 and the adapter 15 respectively. Specifically, the upper end of the adapter 15 is fixedly connected to the upper pen barrel 13, and the lower end of the adapter 15 is threadedly connected to the lower pen barrel 14. The adapter 15 has a petal-shaped center with a through hole 151 for inserting the pressing refill unit 2; the number of through holes 151 is the same as the number of pressing refill units 2. Figure 9 As shown, both the interior of the adapter 15 and the bottom of the body 221 have protrusions 152. After the reset member 23 is sleeved on the outside of the pen refill 21, one end of the reset member 23 abuts against the body 221, and the other end abuts against the protrusion 152 inside the adapter to fix the position of the reset member 23. This ensures that the position of the reset member 23 remains unchanged during the pen refill 21 ejection and reset process, which facilitates the elastic reset function of the reset member 23.
[0045] The number of push-to-eject core units 2 is two or more, and the number of movable slots 11 is the same as the number of push-to-eject core units 2. In this embodiment, the number of push-to-eject core units 2 is four. Of course, in other embodiments, the push-to-eject core units 2 can be set to two or more, and there is no specific limitation.
[0046] like Figure 1 , Figure 2 , Figure 10 As shown, the pen barrel 1 has a receiving cavity 16 for mounting the pen clip 3, and a mounting hole 17 for the pen clip 3 to extend out of the pen barrel 1. The pen clip 3 includes an assembly section 31, a transverse section 32, and a clamping section 33. Figure 10 As shown, the assembly section 31 is V-shaped and placed in the receiving cavity 16. Since the receiving cavity 16 is formed inside the pen barrel 1, the assembly section 31 of the pen clip 3 is installed inside the pen barrel 1 without being exposed or protruding outside the pen barrel 1, thus ensuring the overall aesthetic appearance of the pen barrel 1. The transverse section 32 is connected to the assembly section 31, and at least part of it extends out of the mounting hole 17 and extends laterally towards the outside of the pen barrel 3. The clamping section 33 is connected to the other end of the transverse section 32 and is used to clamp items such as books and papers.
[0047] To ensure that the pen clip 3 can fully hold the item, the horizontal section 32 extends laterally a certain distance after extending from the mounting hole 17 to the pen barrel 1, thereby widening the distance between the pen clip 3 and the pen barrel 1 and providing space for the item to be held. The height of the mounting hole 17 is greater than the thickness of the horizontal section 32. When the pen clip 3 holds an item, it will deform. The mounting hole 17 can provide deformation space for the pen clip 3, making it easier for the pen clip 3 to undergo greater deformation, thereby achieving full holding of the item.
[0048] In this embodiment, the assembly section 31, the transverse section 32, and the clamping section 33 are formed by bending a single metal body, which facilitates processing. Of course, in other embodiments, the metal body can be a steel sheet, and there are no specific limitations.
[0049] The usage process of this utility model is as follows: First, press the pressing member 22 of a set of pressing core-ejection unit 2. The pressing member 22 compresses the reset member 23 and moves relative to the pen barrel 1. When the body 221 slides to the stepped surface 12, the locking part 225 abuts against the stepped surface 12. At this time, the pen core 21 of the pressing core-ejection unit 2 extends into the pen barrel 1.
[0050] When it is necessary to switch the pen refill 21, the pressing member 22 of another set of pressing refill unit 2 is pressed downward. The protruding teeth 223 of the body 221 abut against the inclined action surface 224 of the already ejected refill pressing refill unit 2, and pushes the locking part 225 away from the stepped surface 12. Under the elastic force of the reset member 23, the reset member 23 drives the already ejected pressing member 22 to automatically reset the pen refill 21 until the elastic buffer part 24 abuts against the movable groove 11. At the same time, the locking part 225 of another set of pressing refill unit 2 can enter the stepped surface 12, and its pen refill 21 extends into the pen barrel 1, completing the quick switching of different pen refills 21. The elastic buffer 24 prevents the pressing part 22 from directly contacting the movable groove 11. Compared to the vibration caused by the two hard materials of the pressing part 22 and the movable groove 12 directly contacting each other, the soft material of the elastic buffer 24 contacting the movable groove 12 can play a role in shock absorption and buffering, effectively reducing the vibration caused by contacting the movable groove 12, thereby preventing the ball in the pen tip from loosening and preventing problems such as ink breakage of the pen core 21 and uneven writing.
[0051] After use, press the pressing member 22 of the other pressing core ejection unit 2 to push the ejected core ejection unit 2 back into the pen barrel 1.
[0052] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.
Claims
1. A multi-color writing pen comprising a pen barrel (1) with a movable slot (11), and at least two groups of push-to-expose core units (2), characterized in that: The pressing-out-cartridge unit (2) comprises at least a cartridge (21), a pressing member (22) connected with the cartridge (21), and a reset member (23), the pressing member (22) has an elastic buffer part (24); an external force is applied to drive one set of pressing members (22) of the pressing-out-cartridge unit (2), the pressing member (22) compresses the reset member (23), and moves relative to the pen barrel (1), the pressing members (22) of the other set of pressing-out-cartridge unit (2) can automatically reset with the cartridge (21), until the elastic buffer part (24) of the pressing member (22) abuts against the top of the movable slot (11).
2. The multi-color writing pen according to claim 1, wherein: The elastic buffer part (24) is in the shape of a 7, the transverse part thereof can abut against the top of the movable slot (11), and the longitudinal part thereof protrudes from the movable slot (11).
3. The multi-color writing pen according to claim 1 or 2, characterized by: The pressing member (22) comprises a body (221) and a protruding part (222) arranged on the outer sidewall of the body (221), the protruding part (222) extends into the movable slot (11), and the elastic buffer part (24) extends from the top and the outer side of the protruding part (222).
4. The multi-color writing pen according to claim 3, wherein: The body (221) of the pressing member (22) is provided with a protruding tooth (223), and the top of the body (221) is provided with an inclined action surface (224), when the pressing member (22) moves downward, the protruding tooth (223) can abut against the inclined action surface (224) of the other pressing member (22) to drive the other pressing member (22) to automatically reset with the cartridge (21).
5. The multi-color writing pen of claim 1, wherein: The pressing member (22) is provided with a clamping part (225), and the pen barrel (1) is provided with a stepped surface (12) capable of limiting cooperation with the clamping part (225).
6. The multi-color writing pen according to claim 4, wherein: The inner side of the body (221) of the pressing member (22) has a plurality of avoiding areas (226).
7. The multi-color writing pen of claim 1, wherein: The pen barrel (1) comprises an upper pen barrel (13), a lower pen barrel (14), and an adapter (15) connected with the upper pen barrel (13) and the lower pen barrel (14) respectively, the reset member (23) is sleeved on the outer periphery of the cartridge (21), and the two ends thereof abut against the pressing member (22) and the adapter (15) respectively.
8. The multi-color writing pen of claim 1, wherein: The elastic buffer part (24) is made of rubber.
9. The multi-color writing pen of claim 1, wherein: The number of the pressing-out-cartridge unit (2) is two or more, and the number of the movable slot (11) is the same as that of the pressing-out-cartridge unit (2).
10. The multi-color writing pen of claim 1, wherein: The pen barrel (1) has a containing cavity (16) for mounting a pen clip (3) and a mounting hole (17) for the pen clip (3) to extend out of the pen barrel (1), the pen clip (3) comprises an assembly section (31), a transverse section (32), and a clamping section (33), the assembly section (31), the transverse section (32), and the clamping section (33) are formed by bending a metal body, the assembly section (31) is located in the containing cavity (16), and at least part of the transverse section (32) extends out of the mounting hole (17).