Anti-dry mark pen

Abstract

The utility model relates to the technical field of stationery, in particular to an anti-dry mark pen which comprises a pen holder and a pen refill arranged in the pen holder, a sealing assembly and a telescopic assembly are further arranged in the pen holder, and the sealing assembly and the pen holder are matched in a sealing mode to form a sealing cavity for installing the pen refill. The telescopic assembly drives the pen refill to reciprocate along the axis of the pen holder, the telescopic assembly is further matched with the sealing assembly, the telescopic assembly has a first state for driving the pen refill to stretch out of the pen holder and a second state for driving the pen refill to retract back to the pen holder, and when the telescopic assembly is in the first state, the sealing cavity is communicated with the outside of the pen holder; when the telescopic assembly is in the second state, the sealing cavity is separated from the exterior of the pen holder, the sealing cavity for storing the refill is formed in the pen holder of the mark pen, the sealing cavity can be kept in a sealed or communicated state when the refill retracts or stretches out of the pen holder, and the mark pen has the advantages that the refill is prevented from being dry, and the writing experience feeling is better.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, in particular to an anti-drying marker pen. Background Art

[0002] A marker pen, also known as a permanent marker, is a colored drawing pen used for writing or drawing. It contains ink and typically comes with a cap and a hard tip. Marker pens use volatile ink for quick, one-time drawings and are often used for designing objects, advertising slogans, posters, and other artistic endeavors.

[0003] Since the ink of marker pens is volatile, it is easy for the pen tip to dry out, resulting in no ink during use and the writing color gradually fading. Especially after long periods of non-use, most of the ink is evaporated. In general, the ink utilization rate is low, which ultimately leads to a poor writing experience. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide an anti-drying marker. The marker pen of the present invention has a sealed cavity for storing the refill inside the pen barrel, and the sealed cavity remains sealed or connected when the refill is retracted or extended from the pen barrel, thereby preventing the refill from drying out and providing a better writing experience.

[0005] The technical solution adopted by the present utility model is as follows: an anti-drying marker pen, comprising a pen barrel and a refill arranged in the pen barrel, a sealing assembly and a telescopic assembly further provided in the pen barrel, the sealing assembly and the pen barrel being sealed and cooperated to form a sealed cavity for installing the refill, the telescopic assembly driving the refill to reciprocate along the axis of the pen barrel, the telescopic assembly also cooperating with the sealing assembly, the telescopic assembly having a first state of driving the refill to extend out of the pen barrel and a second state of driving the refill to retract into the pen barrel, when the telescopic assembly is in the first state, the sealed cavity is communicated with the outside of the pen barrel, and when the telescopic assembly is in the second state, the sealed cavity is separated from the outside of the pen barrel.

[0006] The sealing assembly includes a sealing member that connects or separates the sealing cavity and the outside of the pen barrel, the telescopic assembly includes a driving member movably connected to the sealing member, and a sleeve is also provided in the pen barrel and is simultaneously sheathed on the outside of the sealing member and the driving member. The sealing member is rotatably connected to the sleeve, and the driving member is slidably connected to the sleeve. When the telescopic assembly is in a first state, the driving member drives the sealing member to rotate to a position where the sealing cavity is connected to the outside of the pen barrel, and when the telescopic assembly is in a second state, the driving member drives the sealing member back to a position where the sealing cavity is separated from the outside of the pen barrel.

[0007] At least one push rod is provided on the driving member, and the outer edge of the sealing member is recessed toward the center with at least one opening. The push rod slides back and forth along the path of the opening. When the telescopic assembly is in the first state, the push rod slides to the end of the opening close to the center of the sealing member to form abutment.

[0008] A rotating shaft is protruded on both sides of the sealing member, a through hole is opened on both sides of the sleeve, the rotating shaft is rotatably set in the through hole, at least one slider is protruded on the outer wall of the driving member, a sliding groove is recessed on the inner wall of the sleeve, and the slider is slidably set in the sliding groove.

[0009] The rotating shaft is semicircular, and a stopper is protruded from the inner wall of the through hole. When the telescopic assembly is in the first state or the second state, the rotating shaft abuts against both side surfaces of the stopper respectively.

[0010] The sealing assembly also includes a first sealing ring and a second sealing ring. The outer walls of the first sealing ring and the second sealing ring are both engaged with the inner wall of the pen barrel to form a sealing fit. The first sealing ring is also sealed with the end of the seal away from the driving member. The telescopic assembly also includes an inner rod sleeved on the outside of the pen core. The driving member is connected to the inner rod through a buckle. The second sealing ring is sleeved on the outer wall of the inner rod to form a sealing fit and abuts against the end of the sleeve away from the seal. The sealing cavity is located between the first sealing ring and the second sealing ring.

[0011] An elastic member is provided on the outer sleeve of the inner rod, and a step is protruded from the outer wall of the inner rod. One end of the elastic member abuts against the second sealing ring and the other end abuts against the step.

[0012] The pen holder is also provided with a reset assembly, and the telescopic assembly is switched between the first state and the second state through the reset assembly.

[0013] The inner wall of the pen barrel is protruded with at least one protrusion which abuts against the sleeve.

[0014] The beneficial effects of the present invention are as follows: the marker pen of the present invention has a sealed cavity inside the pen barrel for storing the refill, and the sealed cavity will remain sealed or connected when the refill is retracted or extended from the pen barrel. When the pen is not in use, the sealed cavity prevents the ink in the refill from evaporating. When the pen needs to be used for writing, the sealed cavity is connected to the outside of the pen barrel to allow the refill to extend, preventing the refill from drying out. The refill can remain filled with ink during writing, resulting in a higher ink utilization rate and a better writing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present invention.

[0016] Figure 1 Structural schematic diagram of an anti-drying marker pen of the present invention;

[0017] Figure 2 Explosion schematic diagram of the present invention;

[0018] Figure 3 Partial schematic diagram of the present invention with the pen barrel removed;

[0019] Figure 4 For Figure 3 Schematic diagram with the sleeve removed;

[0020] Figure 5 Structural schematic diagram of the sleeve in the present invention;

[0021] Figure 6 Partial sectional view schematic diagram of the present invention;

[0022] Figure 7 Sectional view schematic diagram of the pen barrel in the present invention;

[0023] In the figure, 1 - pen barrel, 2 - pen core, 3 - sealing assembly, 4 - telescopic assembly, 5 - sealing cavity, 6 - seal, 7 - driving member, 8 - sleeve, 9 - ejector rod, 10 - opening, 11 - rotating shaft, 12 - through hole, 13 - slider, 14 - sliding groove, 15 - stop block, 16 - first sealing ring, 17 - second sealing ring, 18 - inner rod, 19 - buckle, 20 - elastic member, 21 - step, 22 - reset assembly, 23 - convex block. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the present invention in detail with reference to the drawings.

[0025] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities or parameters with the same name but different. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present invention. This will not be elaborated one by one in the subsequent embodiments.

[0026] The directional and positional terms mentioned in this utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only with reference to the directions or positions in the attached drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, rather than limiting the protection scope of this utility model.

[0027] As Figures 1 to 7 shown, an embodiment of this utility model is an anti-drying marker pen, which includes a pen barrel 1 and a refill 2 arranged in the pen barrel 1. A sealing component 3 and a telescopic component 4 are further arranged in the pen barrel 1. The sealing component 3 is in sealing cooperation with the pen barrel 1 to form a sealing cavity 5 for installing the refill 2. The telescopic component 4 drives the refill 2 to reciprocate along the axis of the pen barrel 1. The telescopic component 4 also cooperates with the sealing component 3. The telescopic component 4 has a first state of driving the refill 2 to extend out of the pen barrel 1 and a second state of driving the refill 2 to retract into the pen barrel 1. When the telescopic component 4 is in the first state, the sealing cavity 5 is communicated with the outside of the pen barrel 1. When the telescopic component 4 is in the second state, the sealing cavity 5 is separated from the outside of the pen barrel 1.

[0028] The beneficial effects of such a setting are as follows. The pen barrel of the marker pen of this utility model has a sealing cavity for storing the refill, and the sealing cavity will maintain a sealed or communicated state when the refill retracts or extends out of the pen barrel. When the pen is not in use, the sealing cavity prevents the ink of the refill from volatilizing. When the pen needs to be used for writing, the sealing cavity is communicated with the outside of the pen barrel to allow the refill to extend out, preventing the refill from drying out. When writing, the refill can maintain a sufficient amount of ink, the utilization rate of the ink is higher, and the writing experience is better.

[0029] Further setting, the sealing component 3 includes a seal 6 for communicating or separating the sealing cavity 5 from the outside of the pen barrel 1. The telescopic component 4 includes a driving member 7 movably connected to the seal 6. A sleeve 8 is further arranged in the pen barrel 1 and sleeved outside the seal 6 and the driving member 7 at the same time. The seal 6 is rotatably connected to the sleeve 8, and the driving member 7 is slidably connected to the sleeve 8. When the telescopic component 4 is in the first state, the driving member 7 drives the seal 6 to rotate to a position where the sealing cavity 5 is communicated with the outside of the pen barrel 1. When the telescopic component 4 is in the second state, the driving member 7 drives the seal 6 to rotate back to a position where the sealing cavity 5 is separated from the outside of the pen barrel 1.

[0030] The beneficial effects of such a setting are as follows. The opening and closing of the sealing cavity are realized by the rotation of the seal. The seal is also movably connected to the driving member at the same time. While the driving member slides along the axis of the pen barrel, it drives the seal to rotate. Through the cooperation of the seal and the driving member, when the sealing cavity is communicated with the outside of the pen barrel, the driving member drives the refill to extend out of the pen barrel. Moreover, the seal and the driving member are respectively rotatably connected and slidably connected to the sleeve. Through the sleeve, the internal structure is made coherent, which has the advantages of delicate structure and rapid telescoping of the refill, and the feel of controlling the telescoping of the refill is better.

[0031] Further setting: At least one ejector rod 9 is provided on the driving member 7. At least one opening 10 is recessed in the outer edge of the sealing member 6 toward the center. The ejector rod 9 reciprocally slides along the path of the opening 10. When the telescopic assembly 4 is in the first state, the ejector rod 9 slides to the end of the opening 10 close to the center of the sealing member 6 to form an abutment.

[0032] The beneficial effects of such a setting are as follows: The driving member drives the rotation of the sealing member through the reciprocating sliding of the ejector rod along the opening of the sealing member, with a compact and stable structure and good transmission effect.

[0033] Further setting: Shafts 11 protrude from both sides of the sealing member 6. Through holes 12 are provided on both sides of the sleeve 8. The shafts 11 are rotatably arranged in the through holes 12. At least one slider 13 protrudes from the outer wall of the driving member 7. A chute 14 is recessed in the inner wall of the sleeve 8. The slider 13 is slidably arranged in the chute 14.

[0034] The beneficial effects of such a setting are as follows: The sealing member is rotatably connected to the sleeve through the shafts, and the driving member is slidably connected to the sleeve through the sliders, with a delicate connection structure and more stable use.

[0035] Further setting: The shaft 11 is semicircular. A stop block 15 protrudes from the inner wall of the through hole 12. When the telescopic assembly 4 is in the first state or the second state, the shaft 11 abuts against the two side surfaces of the stop block 15 respectively.

[0036] The beneficial effects of such a setting are as follows: The rotation of the shaft is blocked by the stop block in the through hole, effectively controlling the rotation angle of the sealing member, preventing the rotation angle of the sealing member from being too large, and avoiding the problem of the disconnection of the connection between the sealing member and the driving member, ensuring the structural stability.

[0037] Further setting: The sealing assembly 3 further includes a first sealing ring 16 and a second sealing ring 17. The outer walls of the first sealing ring 16 and the second sealing ring 17 are both clamped with the inner wall of the pen barrel 1 and form a sealing fit. The first sealing ring 16 is also in sealing fit with the end of the sealing member 6 away from the driving member 7. The telescopic assembly 4 further includes an inner rod 18 sleeved outside the pen core 2. The driving member 7 is connected to the inner rod 18 through a buckle 19. The second sealing ring 17 is sleeved on the outer wall of the inner rod 18 to form a sealing fit and abuts against the end of the sleeve 8 away from the sealing member 6. The sealing cavity 5 is located between the first sealing ring 16 and the second sealing ring 17.

[0038] The beneficial effects of such a setting are as follows. The first sealing ring and the second sealing ring ensure good sealing performance of the sealing cavity, and the sealing member is in sealing cooperation with the first sealing ring to ensure the sealing performance of the end of the pen barrel where the pen core extends. The inner rod is used to place the pen core and is connected to the driving member. When the inner rod is pushed to drive the pen core to extend out of the pen barrel, the driving member is pushed to slide along the sleeve, and the sealing member is driven to rotate to open the sealing cavity. The stable transmission structure ensures the stability of the pen core's telescoping.

[0039] Furthermore, an elastic member 20 is sleeved outside the inner rod 18. A step 21 protrudes from the outer wall of the inner rod 18. One end of the elastic member 20 abuts against the second sealing ring 17 and the other end abuts against the step 21.

[0040] The beneficial effects of such a setting are as follows. In this embodiment, the elastic member is a spring. The spring between the step abutting on the inner rod and the second sealing ring helps with resetting and helps the pen core retract to the initial storage position inside the pen barrel.

[0041] Furthermore, a reset assembly 22 is also provided on the pen barrel 1. The telescoping assembly 4 switches between a first state and a second state through the reset assembly 22.

[0042] The beneficial effects of such a setting are as follows. The state of the telescoping assembly is switched through the reset assembly, and the telescoping assembly can be maintained in the first state or the second state, with flexible switching.

[0043] Furthermore, at least one convex block 23 that abuts against the sleeve 8 protrudes from the inner wall of the pen barrel 1.

[0044] The beneficial effects of such a setting are as follows. By the convex block abutting against the sleeve, the rotation of the sleeve is prevented, further improving the stability of the overall structure. [[ID=!9]]

[0045] The above-disclosed are only the preferred embodiments of the present utility model. Of course, the scope of the rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A dry-proof marker pen, comprising a pen barrel (1) and a refill (2) arranged inside the pen barrel (1), characterized in that: A sealing component (3) and a telescopic component (4) are further provided in the pen barrel (1). The sealing component (3) is in sealing cooperation with the pen barrel (1) to form a sealing cavity (5) for installing the pen refill (2). The telescopic component (4) drives the pen refill (2) to reciprocate along the axis of the pen barrel (1). The telescopic component (4) is also in cooperation with the sealing component (3). The telescopic component (4) has a first state of driving the pen refill (2) to extend out of the pen barrel (1) and a second state of driving the pen refill (2) to retract into the pen barrel (1). When the telescopic component (4) is in the first state, the sealing cavity (5) is communicated with the outside of the pen barrel (1). When the telescopic component (4) is in the second state, the sealing cavity (5) is separated from the outside of the pen barrel (1).

2. The anti-drying marker pen according to claim 1, wherein: The sealing component (3) includes a seal (6) that communicates or separates the sealing cavity (5) from the outside of the pen barrel (1). The telescopic component (4) includes a driving member (7) that is movably connected to the seal (6). A sleeve (8) that externally sheaths the seal (6) and the driving member (7) at the same time is further provided in the pen barrel (1). The seal (6) is rotatably connected to the sleeve (8). The driving member (7) is slidably connected to the sleeve (8). When the telescopic component (4) is in the first state, the driving member (7) drives the seal (6) to rotate to a position where the sealing cavity (5) is communicated with the outside of the pen barrel (1). When the telescopic component (4) is in the second state, the driving member (7) drives the seal (6) to rotate back to a position where the sealing cavity (5) is separated from the outside of the pen barrel (1).

3. The anti-drying marker pen according to claim 2, characterized in that: At least one ejector rod (9) is provided on the driving member (7). At least one opening (10) is recessed in the outer edge of the seal (6) towards the center direction. The ejector rod (9) reciprocally slides along the path of the opening (10). When the telescopic component (4) is in the first state, the ejector rod (9) slides to the end of the opening (10) close to the center of the seal (6) to form an abutment.

4. The anti-drying marker pen according to claim 2, characterized in that: Rotating shafts (11) protrude from both sides of the seal (6). Through holes (12) are provided on both sides of the sleeve (8). The rotating shafts (11) are rotatably arranged in the through holes (12). At least one slider (13) protrudes from the outer wall of the driving member (7). A sliding groove (14) is recessed in the inner wall of the sleeve (8). The slider (13) is slidably arranged in the sliding groove (14).

5. The anti-drying marker pen according to claim 4, wherein: The rotating shaft (11) is semicircular. A stop block (15) protrudes from the inner wall of the through hole (12). When the telescopic component (4) is in the first state or the second state, the rotating shaft (11) abuts against the two side surfaces of the stop block (15) respectively.

6. The anti-drying marker pen according to claim 2, characterized in that: The sealing assembly (3) further includes a first sealing ring (16) and a second sealing ring (17). The outer walls of the first sealing ring (16) and the second sealing ring (17) are both clamped with the inner wall of the pen barrel (1) and form a sealing fit. The first sealing ring (16) is also in sealing fit with one end of the sealing member (6) away from the driving member (7). The telescopic assembly (4) further includes an inner rod (18) sleeved outside the pen refill (2). The driving member (7) is connected to the inner rod (18) through a buckle (19). The second sealing ring (17) is sleeved on the outer wall of the inner rod (18) to form a sealing fit and abuts against one end of the sleeve (8) away from the sealing member (6). The sealing cavity (5) is located between the first sealing ring (16) and the second sealing ring (17).

7. The anti-drying marker pen according to claim 6, characterized in that: An elastic member (20) is sleeved on the inner rod (18). A step (21) protrudes from the outer wall of the inner rod (18). One end of the elastic member (20) abuts against the second sealing ring (17) and the other end abuts against the step (21).

8. The anti-drying marker pen according to claim 1, characterized in that: A reset assembly (22) is further provided on the pen barrel (1). The telescopic assembly (4) is switched between a first state and a second state through the reset assembly (22).

9. The anti-drying marker pen according to claim 2, characterized in that: At least one convex block (23) that abuts against the sleeve (8) protrudes from the inner wall of the pen barrel (1).

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