Mark pen capable of replacing multiple types of pen points

Abstract

The utility model discloses a mark pen capable of replacing multiple types of pen points, which is characterized in that a mounting piece is arranged at one end of a pen shell and comprises a mounting hole, and a plurality of limiting ribs are arranged on the inner side of the mounting hole; the pen point comprises a thin and round pen point and a thick and wide pen point, the outer side of the thin and round pen point is fixedly sleeved with a clamping piece, the clamping piece is clamped and matched with the limiting rib, and the thick and wide pen point is clamped and matched with the limiting rib; a dismounting piece is detachably arranged on the pen cap and comprises a soft sleeve. According to the utility model, the detachable dismounting piece with the soft sleeve is arranged on the pen cap, and the two types of pen points matched with the mounting holes of the pen shell are arranged, so that when a user needs to replace the pen point, the soft sleeve of the dismounting piece is used for wrapping the pen point, and force can be applied to replace the pen point by kneading the soft sleeve with fingers; the replaced pen point can be stored in the soft sleeve and hidden in the pen cap, a user can conveniently replace the pen point of the mark pen in outdoor scenes and other scenes, and the diversified use requirements of the user are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to marker pen technical field especially, a kind of marker pen of multiple types pen head can be replaced. BACKGROUND

[0002] Marker pen is commonly used in life study office supplies, when drawing graphics and writing content, different pen head type marker pen has different effects and functions when drawing, writing content, for outdoor workers, when need to mark different materials of outdoor materials, there is also the demand of needing to select different pen head marking.

[0003] In prior art, marker pen is usually equipped with only one fixed type of pen head, user cannot independently replace pen head to change writing line type, prior art CN217435374U although disclosed marker pen with adjusting pen head, but its replacement process directly plugs pen head, and need to use additional tool (such as tweezers etc.) to operate, when using in outdoor etc. Scene, it is not convenient.

[0004] Therefore, prior art still needs to be improved and developed. UTILITY MODEL CONTENT

[0005] To solve the problem that marker pen cannot independently replace pen head in prior art, or need to use additional tool (such as tweezers etc.) to plug pen head when replacing pen head, it is inconvenient to replace pen head in outdoor etc. Scene, the utility model provides a kind of marker pen of multiple types pen head can be replaced.

[0006] The utility model is realized by the following technical scheme:

[0007] A kind of marker pen of multiple types pen head can be replaced, wherein the marker pen of multiple types pen head can be replaced includes:

[0008] Pen shell, one end of the pen shell is provided with mounting piece, the mounting piece includes the installation hole with several limit ribs in inner side;

[0009] Pen head, the pen head includes thin round pen head and thick wide pen head, the outer side of the thin round pen head is fixedly sleeved with clamping piece, the clamping piece is matched with the limit rib in the installation hole, the outer wall of the thick wide pen head is matched with the limit rib in the installation hole;

[0010] Pen cap, detachable setting has removal piece on the pen cap, the removal piece includes soft sleeve with the inner diameter size being matched with the thin round pen head and the thick wide pen head.

[0011] The mark pen with replaceable multi-type pen heads, wherein the cap is open at one end of the shell, and the dismounting piece is detachably arranged at the other end of the cap;

[0012] The dismounting piece comprises a mounting seat, and one end of the soft sleeve is fixedly connected with the center position of the mounting seat.

[0013] The mark pen with replaceable multi-type pen heads, wherein the inner side of the end of the soft sleeve away from the mounting seat is provided with a contact layer, and the contact layer is circumferentially and fixedly attached to the inner side of the soft sleeve.

[0014] The contact layer is an elastic contact layer, and the soft sleeve is an elastic soft sleeve.

[0015] The mark pen with replaceable multi-type pen heads, wherein the mounting seat comprises a clamping sleeve, a limiting plate and a top cover, the clamping sleeve is integrally formed on one side of the limiting plate, and is suitably fitted with the cap.

[0016] The top cover is integrally formed on the other side of the limiting plate, and the cross-sectional dimension of the limiting plate is greater than or equal to the cross-sectional dimension of the cap.

[0017] The mark pen with replaceable multi-type pen heads, wherein a plurality of limiting ribs are arranged in a ring shape in the mounting hole.

[0018] The limiting rib is provided with a plurality of air grooves, and the limiting rib is divided into a plurality of segments by the air grooves.

[0019] The mark pen with replaceable multi-type pen heads, wherein the outer side of the clamping piece is provided with a limiting clamping groove suitable for the plurality of limiting ribs, and the limiting clamping groove is elastically fitted with the limiting rib.

[0020] The mark pen with replaceable multi-type pen heads, wherein the inner wall of the cap is provided with a plurality of locking ribs for fixing the fine round pen head.

[0021] The mark pen with replaceable multi-type pen heads, wherein the mounting piece comprises a guide part and a mounting part, the guide part is in the shape of a truncated cone, one end of the guide part with a larger diameter is fixedly connected with the shell, the other end of the guide part with a smaller diameter is integrally formed with the mounting part, and the mounting hole is arranged in the mounting part.

[0022] The mark pen with replaceable multi-type pen heads, wherein the pen head comprises a liquid suction end, and when the pen head is combined with the mounting part, the liquid suction end is in butt joint with the ink cartridge arranged in the shell.

[0023] The mark pen with replaceable multi-type pen heads, wherein a symmetrical end is arranged on the pen shell away from the mounting piece, and the shape of the symmetrical end is matched with the shape of the pen cap.

[0024] The utility model discloses the beneficial effect lies in: the utility model discloses a detachable dismantling spare is set up on the pen cap, and the dismantling spare includes the soft cover of adapting to different types pen head, and sets up two kinds of pen heads of adapting to the mounting hole of pen shell, when the user needs to replace pen head, only needs to use the soft cover of dismantling spare to wrap pen head, and can replace pen head by the pinching of soft cover, and the pen head of replacement can be accomodated in the soft cover, hides in the pen cap, and the user can conveniently replace the pen head of mark pen in the scene such as outdoor, satisfies the diversified use demand of user. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the dismantling state schematic drawing of the utility model can replace multi-type pen head's mark pen;

[0026] Figure 2 It is the combination state schematic drawing of the utility model can replace multi-type pen head's mark pen;

[0027] Figure 3 It is the partial structure section view of dismantling spare in the utility model can replace multi-type pen head's mark pen;

[0028] Figure 4 It is the structure dismantling schematic drawing of fine round pen head and engaging piece in the utility model multi-type replacement mark pen;

[0029] Figure 5 It is the structure schematic drawing of thick wide pen head in the utility model multi-type replacement mark pen.

[0030] In Figures 1 to 5 In: 100, pen shell;110, mounting piece;111, guide part;112, mounting part;120, mounting hole;130, limiting rib;140, symmetrical end;200, pen head;201, liquid absorbing end;210, fine round pen head;220, thick wide pen head;230, engaging piece;231, limiting clamping groove;232, locking rib;300, pen cap;400, dismantling spare;410, soft cover;411, contact layer;420, mounting seat;421, clamping sleeve;422, limiting plate;423, top cover. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and effect of the utility model more clear and definite, the utility model is further explained in detail below by referring to the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In existing technologies, marker pens are usually equipped with only one fixed type of pen tip, and users cannot change the pen tip to change the type of writing lines. Although the existing technology CN217435374U discloses a marker pen with an adjustable pen tip, the method of directly inserting and removing the pen tip during the replacement process can easily cause the pen tip to deform, and additional tools (such as tweezers) are required for operation, which is not convenient when used in outdoor or other scenarios.

[0035] In view of the above-mentioned problems in the prior art, this utility model provides a multi-type replaceable marker pen, such as... Figure 1 As shown, the multi-type replaceable marker includes: a pen shell 100, one end of which is provided with a mounting member 110, the mounting member 110 including a mounting hole 120 with a plurality of limiting ribs 130 on its inner side; a pen tip 200, the pen tip 200 including a thin round pen tip 210 and a thick wide pen tip 220, the outer side of the thin round pen tip 210 is fixedly fitted with a locking member 230, the locking member 230 is fitted with the limiting ribs 130 in the mounting hole 120, and the outer wall of the thick wide pen tip 220 is fitted with the limiting ribs 130 in the mounting hole 120; and a pen cap 300, the pen cap 300 being detachably provided with a removal member 400, the removal member 400 including a soft sleeve 410 with an inner diameter adapted to the thin round pen tip 210 and the thick wide pen tip 220.

[0036] This invention features a detachable removal component 400 on the pen cap 300. The removal component 400 includes a soft sleeve 410 adapted to different types of pen tips 200 and is equipped with two types of pen tips 200 adapted to the mounting holes 120 of the pen shell 100. When the user needs to replace the pen tip 200, they only need to wrap the pen tip 200 with the soft sleeve 410 of the removal component 400 and apply force by pinching the soft sleeve 410 with their fingers to replace the pen tip 200. The replaced pen tip 200 can be stored in the soft sleeve 410 and hidden in the pen cap 300. In outdoor and other scenarios, users can conveniently replace the pen tip 200 of the marker pen, meeting the diverse usage needs of users.

[0037] In the above embodiments, such asFigure 1 As shown, the utility model can replace the main body of the marker pen of multiple types of pen tip, which is composed of a pen shell 100, a pen tip 200 and a pen cap 300, wherein the pen shell 100 is used for user holding and ink containing and sealing structure, since the ink structure is not improved in the application, it will not be described in detail, the ink structure in the pen shell 100 in the application can be set according to the prior art, and the person skilled in the art can set it according to the actual use requirement. An installation part 110 is arranged at one end of the pen shell 100, which is used for assembling with the pen tip 200 to form a complete and usable marker pen, in the embodiment, the installation part 110 comprises an installation hole 120 for combined installation with the pen tip 200, a plurality of limiting ribs 130 are arranged in the inside of the installation hole 120, and the limiting ribs 130 are used for limiting the installation position of the pen tip 200.

[0038] The pen tip 200 is made of the fiber material commonly used in the prior art, in the embodiment, in order to realize the effect that the user can replace the pen tip 200 of the marker pen of different types and different sizes, two pen tips 200 are provided in the embodiment, as shown in the drawings, Figure 1 As shown, one is a thin round pen tip 210, and the other is a thick pen tip 220, in order to realize that different pen tips 200 can be firmly installed in the above-mentioned installation hole 120, a clamping part 230 is fixedly sleeved on the outside of the thin round pen tip 210 in the embodiment, it should be noted that the clamping part 230 is installed with the thin round pen tip 210 in the production stage of the marker pen, and it is not necessary for the user to install or disassemble again, the clamping part 230 is clamped and matched with the limiting ribs 130 in the above-mentioned installation hole 120, so that the effect that the thin round pen tip 210 is stably installed in the installation hole 120 can be realized; on the other hand, the outer wall of the thick pen tip 220 is clamped and matched with the limiting ribs 130 in the above-mentioned installation hole 120, that is, the user can directly insert the thick pen tip 220 into the installation hole 120 to realize stable installation.

[0039] The pen cap 300 is used for sleeving on the pen shell 100 at one end of the corresponding pen tip 200 (as shown in the drawings) Figure 2 When the marker pen is not used, in order to realize the effect of protecting the pen tip 200, in the embodiment, as shown in the drawings, Figure 1As shown, a dismounting piece 400 is arranged on the cap 300, which comprises a soft sleeve 410 structure, and when the cap 300 is sleeved on the pen shell 100, the dismounting piece 400 is combined with the cap 300 and hidden inside the cap 300, when the user needs to replace the pen tip 200, the dismounting piece 400 can be separated from the cap 300 to serve as a tool for replacing the pen tip 200; in the embodiment, the dismounting piece 400 comprises a soft sleeve 410 with an inner diameter size adapted to the thin round pen tip 210 and the thick wide pen tip 220, when the user actually operates, by sleeving the soft sleeve 410 of the dismounting piece 400 on the pen tip 200 located on the pen shell 100, and then using fingers to pinch the sleeved part, the pen tip 200 can be easily pulled out, and at the same time, the ink can be prevented from being smeared on the fingers, after the original pen tip 200 is dismounted, the new pen tip 200 is sleeved on the predetermined position inside the soft sleeve 410, and the fingers are used to pinch the sleeved part, the pen tip 200 can be installed on the pen shell 100, so it can be seen that the process of replacing the pen tip 200 of the marker pen of the present application is not limited by the scene where the user is located, and the operation can be realized without additional tools.

[0040] On the other hand, since the inner hole size of the two pen tips 200 and the soft sleeve 410 in the utility model is adapted, when the dismounting piece 400 is combined on the cap 300, the excess pen tip 200 can be sleeved inside the dismounting piece 400 to form storage, without the user carrying additional pen tip 200 storage tools, effectively improving the convenience.

[0041] In another implementable manner of the utility model, Figure 1 As shown, the above-mentioned dismounting piece 400 further comprises a mounting seat 420, one end of the above-mentioned soft sleeve 410 is fixedly connected with the center position on one side of the mounting seat 420, the mounting seat 420 is convenient for the user to hold on one hand, and has the function of combined connection with the cap 300 on the other hand, as Figure 1 and Figure 2 As shown, when the cap 300 is combined with the pen shell 100, the open end of the cap 300 is sleeved and connected with the pen shell 100, and the mounting seat 420 is buckled on the other end of the cap 300, forming a combined style with simple appearance.

[0042] Further, in order to make the operation more stable when the dismounting piece 400 dismounts the pen tip 200, as Figure 3As shown, the inner side of the one end of the soft sleeve 410 away from the mounting base 420 is further provided with a contact layer 411, which is circumferentially and fixedly attached to the inner side of the soft sleeve 410. When the pen head 200 is sleeved, the contact layer 411 is the part actually in contact with the pen head 200. In the embodiment, the contact layer 411 is made of a material with a high friction coefficient, and the soft sleeve 410 and the contact layer 411 are both made of an elastic material. The advantages of such arrangement are that, on the one hand, the friction when in contact with the pen head 200 can be increased to prevent the pen head 200 from slipping off when force is applied; on the other hand, during the process of the user pinching and applying force, the soft sleeve 410 and the contact layer 411 deform to clamp the pen head 200 and also disperse stress, thereby avoiding damage to the pen head 200 due to stress concentration when the user applies force.

[0043] In another embodiment of the present application, as shown in Figure 3 The mounting base 420 is composed of a clamping sleeve 421, a limiting plate 422 and a top cover 423. The clamping sleeve 421 is integrally formed on one side of the limiting plate 422. The clamping sleeve 421 is a fixed structure actually combined with the cap 300. In actual use, the clamping sleeve 421 is sleeved on the end of the cap 300 to stably combine the dismounting part 400 with the cap 300. The limiting plate 422 has a cross-sectional dimension greater than or equal to that of the cap 300, so that the limiting plate 422 limits the combination of the dismounting part 400 and the cap 300 to avoid damage to the pen head 200 on the pen shell 100. The top cover is integrally formed on the other side of the limiting plate 422. The top cover provides a force point for the user to separate the dismounting part 400 and the cap 300, and also beautifies the structure.

[0044] In another embodiment of the present application, as shown in Figure 1As shown, the above-mentioned several limiting ribs 130 are annularly arranged in the mounting hole 120, and through the cooperation of the above-mentioned several limiting ribs 130 and the clamping member 230 on the outer side of the thin round pen head 210 and the outer side wall of the thick wide pen head 220, the insertion depth of the pen head 200 is limited, and the pen head 200 is clamped and fixed. In the embodiment, the above-mentioned limiting ribs 130 are further provided with several air ventilation grooves, which are arranged at predetermined positions of the above-mentioned several limiting ribs 130, and divide the limiting ribs 130 into several segments. The air ventilation grooves are used to connect the inside of the pen shell 100 and the mounting part 112 of the pen head 200. On the one hand, the air pressure in the pen shell 100 can be prevented from being too large to affect the installation process during the installation of the pen head 200. On the other hand, the air ventilation grooves have the function of ventilation, so that the ink in the pen shell 100 can be smoothly absorbed to the smoother pen head 200.

[0045] More specifically, as Figure 4 shown, the outer side of the above-mentioned clamping member 230 is provided with several limiting clamping grooves 231 matched with the above-mentioned limiting ribs 130. In the embodiment, the limiting clamping grooves 231 are elastically clamped and connected with the limiting ribs 130, and can be partially clamped during specific arrangement. On the basis of limiting the installation position of the clamping member 230, the air ventilation grooves are prevented from being blocked. In the embodiment, the size of the outer side wall of the thick wide pen head 220 can be pre-set, so that the thick wide pen head 220 is clamped with the several limiting ribs 130 after being inserted into the mounting hole 120 by a certain length, thereby realizing the effect of stable installation and limiting the installation position.

[0046] On the other hand, during the production and combination of the above-mentioned thin round pen head 210 and the clamping member 230, the inner wall of the thin round pen head 210 is further provided with several locking ribs 232 at the position of the clamping member 230, as Figure 4 shown, the several locking ribs 232 are located on the inner wall of the clamping member 230. During the combination stage, the thin round pen head 210 is inserted into the inner hole of the clamping member 230, and the material characteristics of the thin round pen head 210 and the locking ribs 232 are embedded, thereby realizing stable solid connection.

[0047] In another embodiment of the present application, as Figure 1As shown, the mounting member 110 is composed of two parts, a guide part 111 and a mounting part 112. The guide part 111 is in the shape of a truncated cone, which provides an auxiliary space for the user to hold the marker, thus ensuring comfortable holding. On the other hand, the guide part 111 also has the function of avoiding the view angle of the pen tip 200, which can facilitate the user to observe the position of the pen tip 200 when writing to complete the writing smoothly. The larger end of the guide part 111 is fixedly connected with the pen shell 100, and the smaller end of the guide part 111 is fixedly connected with the mounting part 112. In actual production, the guide part 111 and the mounting part 112 can be set in an integrated manner. The mounting hole 120 is located in the mounting part 112, so that the mounted pen tip 200 is located on the extension line of the central axis of the pen shell 100, which is convenient for the user to operate.

[0048] In the above embodiment, the pen tip 200 should also include a suction end, as shown in Figure 4 and Figure 5 The suction end is located on the end of the thin round pen tip 210 and the thick pen tip 220 corresponding to the insertion into the pen shell 100. The suction end has a certain length and the end is pre-set to a certain shape, which can be connected and matched with the ink supply structure in the pen shell 100 to realize the function of sucking ink. In a specific embodiment, the ink supply structure can be specifically set as a refill. The common refill is made of cotton material with locking ink. When the suction end is inserted into the refill, the ink can be sucked, so that the pen tip 200 has the function of writing.

[0049] In a specific embodiment, as shown in Figure 1 and Figure 2 The end of the pen shell 100 away from the mounting member 110 is also provided with a symmetrical end 140. The shape of the symmetrical end 140 is the same as that of the cap 300. In this embodiment, the symmetrical end 140 is only the same in shape as the cap 300 on the other end of the pen shell 300, and does not have an actual function. When the pen shell 100 and the cap 300 are combined, the symmetrical end 140 has the function of making the two ends of the combined marker symmetrical, so that the product appearance is beautiful.

[0050] Further, in another specific embodiment, the marker with replaceable multiple types of pen tips can also be set as a double-head structure, that is, Figure 2The two ends of the pen shell 100 shown have the complete structure of the mounting piece 110, the pen head 200 and the pen cap 300, and the symmetrical end 140 can also be used for writing by disassembling the pen cap 300 and the corresponding pen head 200, and in this embodiment, the advantage of such a setting is that the multi-type pen head replacement marker pen itself has four different types of pen heads 200 that can be replaced, greatly meeting the diversified use requirements of users, and the setting of the disassembly piece 400 of the utility model enables the user to quickly replace the pen head required for use in any scene.

[0051] Based on the above embodiment, the actual use process of the multi-type pen head replacement marker pen of the utility model is as follows:

[0052] As shown in the drawings, Figure 1 When the user needs to replace the pen head 200 of the marker pen of different types, the pen cap 300 is separated from the pen shell 100, the disassembly piece 400 on the pen cap 300 is separated, the pen head 200 on the current pen shell 100 is sleeved by the soft sleeve 410 on the disassembly piece 400, the soft sleeve 410 is pinched by the fingers, the contact layer 411 is in full contact with the pen head 200, and then the pen head 200 is pulled out by force, that is, the disassembly of the current pen head 200 is completed.

[0053] When installing a new pen head 200, the writing end of the pen head 200 is inserted into the soft sleeve 410, the soft sleeve 410 is pinched by the fingers, and finally the liquid suction end 201 of the pen head 200 is inserted into the predetermined position in the installation hole 120, that is, the replacement of the pen head 200 is completed, the replaced pen head 200 can be sleeved in the soft sleeve 410 for storage, and the disassembly piece 400 is installed back on the pen cap 300, that is, the whole operation is completed.

[0054] In summary, the utility model provides a multi-type pen head replacement marker pen, which comprises: a pen shell, one end of the pen shell is provided with a mounting piece, the mounting piece comprises an installation hole provided with a plurality of limiting ribs on the inner side; a pen head, the pen head comprises a thin round pen head and a thick wide pen head, a clamping piece is fixedly sleeved on the outer side of the thin round pen head, the clamping piece is matched with the limiting ribs in the installation hole, and the outer wall of the thick wide pen head is matched with the limiting ribs in the installation hole; a pen cap, a disassembly piece is detachably arranged on the pen cap, and the disassembly piece comprises a soft sleeve with an inner diameter size matched with the thin round pen head and the thick wide pen head. The utility model is provided with a detachable disassembly piece on the pen cap, the disassembly piece comprises a soft sleeve matched with different types of pen heads, and two types of pen heads matched with the installation hole of the pen shell are arranged, when the user needs to replace the pen head, only needs to wrap the pen head with the soft sleeve of the disassembly piece, and the pen head can be replaced by pinching the soft sleeve with the fingers, the replaced pen head can be stored in the soft sleeve and hidden in the pen cap, the user can conveniently replace the pen head of the marker pen in outdoor scenes, and the diversified use requirements of the user are met.

[0055] It should be understood that the application of the present application is not limited to the above examples, and those of ordinary skill in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. A marker capable of changing a plurality of types of a tip, characterized by, The marker with replaceable multi-type nibs comprises: a marker shell, one end of the marker shell is provided with a mounting member, the mounting member comprises a mounting hole with a plurality of limiting ribs arranged on the inner side; a nib, the nib comprises a thin round nib and a thick wide nib, the outer side of the thin round nib is fixedly sleeved with a clamping member, the clamping member is matched and clamped with the limiting ribs in the mounting hole, and the outer wall of the thick wide nib is matched and clamped with the limiting ribs in the mounting hole; a cap, the cap is detachably provided with a removal member, the removal member comprises a soft sleeve with an inner diameter size matched with the thin round nib and the thick wide nib.

2. The marker pen of claim 1, wherein One end of the cap matched with the marker shell is open, and the removal member is detachably arranged on the other end of the cap; the removal member comprises a mounting seat, and one end of the soft sleeve is fixedly connected with the center position of the mounting seat.

3. The marker pen of claim 2, wherein The inner side of the other end of the soft sleeve away from the mounting seat is provided with a contact layer, and the contact layer is circumferentially and fixedly attached to the inner side of the soft sleeve; the contact layer is an elastic contact layer, and the soft sleeve is an elastic soft sleeve.

4. The marker pen of claim 2, wherein The mounting seat comprises a clamping sleeve, a limiting plate and a top cover, the clamping sleeve is integrally formed on one side of the limiting plate and matched and clamped with the cap; the top cover is integrally formed on the other side of the limiting plate, and the size of the cross section of the limiting plate is greater than or equal to the size of the cross section of the cap.

5. The marker pen of claim 1, wherein A plurality of limiting ribs are arranged in the mounting hole in the form of a ring; a plurality of air grooves are arranged on the limiting ribs, and the limiting ribs are divided into a plurality of segments by the air grooves.

6. The marker pen of claim 5, wherein The outer side of the clamping member is provided with a limiting clamping groove matched with a plurality of limiting ribs, and the limiting clamping groove is elastically matched and clamped with the limiting ribs.

7. The marker pen of claim 1, wherein A plurality of locking ribs are arranged on the inner wall of the thin round nib matched with the clamping member, and the locking ribs are used for fixing the thin round nib.

8. The marker pen of claim 1, wherein The mounting member comprises a guide portion and a mounting portion, the guide portion is in the shape of a truncated cone, one end of the guide portion with a larger diameter is fixedly connected with the marker shell, the other end of the guide portion with a smaller diameter is integrally formed with the mounting portion, and the mounting hole is arranged in the mounting portion.

9. The marker pen of claim 8, wherein The nib comprises a liquid suction end, when the nib is combined with the mounting portion, the liquid suction end is docked with a cartridge arranged in the marker shell.

10. The marker pen of claim 1, wherein The end of the marker shell away from the mounting member is provided with a symmetrical end, and the shape of the symmetrical end is matched with the shape of the cap.

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