Direct-liquid type soft-head propylene mark pen with replaceable ink bag structure and guide sealing function

Abstract

The utility model discloses a direct liquid type soft head propylene mark pen with a replaceable ink bag structure and a guide seal, which comprises a pen cap assembly, a pen point assembly, an ink bag assembly, a pen neck and a pen holder, and the ink bag assembly is detachably arranged in the pen holder; the pen cap assembly comprises a pen cap, an air-proof sleeve and a spring, the air-proof sleeve is arranged in the pen cap, the air-proof sleeve and the pen cap are coaxial, and the air-proof sleeve is provided with a moving space in the axial direction of the pen cap; the spring is sleeved on the air-proof sleeve, one end of the spring abuts against the pen cap, and the other end of the spring abuts against the outer side wall of the air-proof sleeve. The anti-gas pen has the advantages that the anti-gas sleeve is tightly attached to the pen point assembly under the elastic force effect of the spring, and therefore the good sealing effect is achieved; the spring can continuously provide elastic force to enable the air-proof sleeve to be tightly attached to the pen point assembly, and therefore a good sealing effect is continuously obtained. The ink bag assembly is detachable, and in the using process, after ink in the ink bag assembly is used up, the ink bag assembly is replaced with a new ink bag assembly, and then normal use can be continued.

Description

Technical Field

[0001] The utility model relates to the technical field of markers, in particular to a refillable ink sac structure and a direct liquid soft-tip acrylic marker with guiding and sealing functions. Background Art

[0002] For the existing direct liquid soft-tip acrylic markers on the market, the ink is filled inside the inner rod, and a pen barrel is assembled outside the inner rod. When writing, the ink is drained by a water guiding core extending into the inner rod, passes through a water storage device, and reaches the soft writing tip, so as to achieve the purpose of writing.

[0003] For the existing direct liquid soft-tip acrylic markers, an air-proof sleeve is installed inside the pen cap. Four ribs inside the pen cap are used to tightly fit the air-proof sleeve. The step inside the pen cap and the annular groove in the middle section are used to limit the air-proof sleeve front and back. The pen cap, the air-proof sleeve and the pen clip form a pen cap assembly. The pen cap assembly is sleeved on the main body of the marker. The airtight requirement is achieved through the interference fit between the annular groove inside the air-proof sleeve and the periphery of the connecting piece. The existing direct liquid soft-tip acrylic markers have the following defects:

[0004] 1. The seal at the soft writing tip is achieved through the interference fit between the annular groove inside the air-proof sleeve and the periphery of the connecting piece. Since the material of the air-proof sleeve is PP and has good ductility, multiple pluggings and unplugging will cause the size of the mouth of the air-proof sleeve to become larger, resulting in poor sealing and air leakage, and the soft writing tip will become hard when contacting air and cannot be used for writing.

[0005] 2. After the ink is used up, the ink cannot be refilled or the ink sac cannot be replaced, and it belongs to a disposable writing stationery.

[0006] Therefore, it is necessary to design a new type of marker to solve the above technical problems. Summary of the Utility Model

[0007] For this reason, the utility model provides a refillable ink sac structure and a direct liquid soft-tip acrylic marker with guiding and sealing functions to solve the above problems in the prior art.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] According to the first aspect of the utility model, a refillable ink sac structure and a direct liquid soft-tip acrylic marker with guiding and sealing functions include a pen cap assembly, a writing tip assembly, an ink sac assembly, a pen neck and a pen barrel. The ink sac assembly is detachably arranged inside the pen barrel. One end of the pen neck is detachably connected to one end of the pen barrel. The writing tip assembly is arranged inside the pen neck. The ink supply end of the ink sac assembly is inserted into the pen neck. The pen cap assembly is inserted into the pen neck.

[0010] The pen cap assembly includes a pen cap, an air-proof sleeve, and a spring. The air-proof sleeve is disposed within the pen cap, coaxially with the pen cap, and has a movable space along the axial direction of the pen cap. The spring is sleeved on the air-proof sleeve, with one end of the spring abutting against the pen cap and the other end abutting against the outer sidewall of the air-proof sleeve.

[0011] Further, one end of the air-proof sleeve facing the pen tip assembly is in a flared shape.

[0012] Further, a limiting ring groove is provided within the pen cap, and the limiting ring groove is used to prevent the air-proof sleeve from falling off from within the pen cap.

[0013] Further, the pen cap assembly further includes a pen clip, and the pen clip is snap-connected to the pen cap.

[0014] Further, the ink sac assembly includes an ink sac, a steel ball, and a tail plug. A ink storage cavity is provided within the ink sac, and the ink storage cavity is arranged along the axis of the ink sac. The tail plug is disposed at one end of the ink sac, and one end of the ink sac facing away from the tail plug is inserted and connected to the pen neck.

[0015] Further, one end of the ink sac is a large-head end, and the other end of the ink sac is a small-head end. The inner diameter of the large-head end is greater than the inner diameter of the small-head end;

[0016] The tail plug is disposed at the large-head end, the diameter of the steel ball is adapted to the inner diameter of the small-head end, and the steel ball can be snapped into the small-head end to seal it.

[0017] Further, the tail plug is in interference fit with the ink sac.

[0018] Further, the pen tip assembly includes a soft pen tip, a water guiding core, a connecting member, and a water storage device. The water storage device is disposed within the pen neck;

[0019] The water guiding core is arranged within the water storage device along the axial direction of the water storage device, and both ends of the water guiding core extend outside the water storage device;

[0020] The connecting member is disposed at one end of the water storage device facing away from the ink sac assembly, and one end of the soft pen tip is inserted into the connecting member and contacts the water guiding core.

[0021] Further, the pen barrel is threadedly connected to the pen neck.

[0022] Further, an anti-slip sleeve is sleeved outside the pen neck.

[0023] The present utility model has the following advantages: By sleeving a spring on the air-proof sleeve, under the elastic force of the spring, the air-proof sleeve is closely attached to the pen tip assembly, thus forming a good sealing effect; during use, even if the air-proof sleeve is deformed after long-term use, the spring can continuously provide an elastic force to make the air-proof sleeve closely attached to the pen tip assembly, so as to continuously obtain a good sealing effect, and the sealing performance of the air-proof sleeve is not affected by the number of plugging and unplugging times; the ink sac assembly is an independent and detachable component. During use, when the ink in the ink sac assembly is used up, after replacing the new ink sac assembly, it can continue to be used normally. Description of the Drawings

[0024] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0025] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0026] Figure 1 It is a cross-sectional view of a replaceable ink sac structure and a direct liquid soft-tip acrylic marker with guide sealing provided by some embodiments of the present utility model.

[0027] Figure 2 It is a cross-sectional view of the ink sac of a replaceable ink sac structure and a direct liquid soft-tip acrylic marker with guide sealing provided by some embodiments of the present utility model in the first state.

[0028] Figure 3 It is a cross-sectional view of the ink sac of a replaceable ink sac structure and a direct liquid soft-tip acrylic marker with guide sealing provided by some embodiments of the present utility model in the second state.

[0029] Figure 4 It is a cross-sectional view of the pen cap of a replaceable ink sac structure and a direct liquid soft-tip acrylic marker with guide sealing provided by some embodiments of the present utility model.

[0030] Figure 5 It is a cross-sectional view of the pen barrel of a replaceable ink sac structure and a direct liquid soft-tip acrylic marker with guide sealing provided by some embodiments of the present utility model.

[0031] Figure 6 Exploded view of the pen tip assembly of a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen with guiding and sealing, provided by some embodiments of the present utility model.

[0032] Figure 7 Cross-sectional view of the pen cap and the pen tip assembly of a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen with guiding and sealing, provided by some embodiments of the present utility model, before being fitted together.

[0033] Figure 8 Cross-sectional view of the pen cap and the pen tip assembly of a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen with guiding and sealing, provided by some embodiments of the present utility model, after being fitted together.

[0034] Figure 9 Stereogram of a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen with guiding and sealing, provided by some embodiments of the present utility model.

[0035] Figure 10 Exploded view of a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen with guiding and sealing, provided by some embodiments of the present utility model.

[0036] In the figure: 1, pen clip; 2, anti-air sleeve; 3, soft pen tip; 4, water guiding core; 5, pen cap; 6, spring; 7, connecting piece; 8, water storage device; 9, pen neck; 10, steel ball; 11, ink sac; 12, pen barrel; 13, tail plug; 14, large head end; 15, small head end; 16, limiting ring groove. Specific embodiments

[0037] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are some embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] Embodiment 1

[0039] As Figures 1 to 10 shown, a refillable ink sac structure and a direct liquid soft-tip acrylic marker pen according to the first aspect embodiment of the present utility model include a pen cap assembly, a pen tip assembly, an ink sac assembly, a pen neck 9 and a pen barrel 12. The ink sac assembly is detachably arranged in the pen barrel 12. One end of the pen neck 9 is detachably connected to one end of the pen barrel 12. The pen tip assembly is arranged in the pen neck 9. The ink supply end of the ink sac assembly is inserted into the pen neck 9. The pen cap assembly is inserted into the pen neck 9. A sealing effect is formed between the pen cap assembly and the pen tip assembly.

[0040] The pen cap assembly includes a pen cap 5, an air-proof sleeve 2, and a spring 6. The air-proof sleeve 2 is arranged inside the pen cap 5. The air-proof sleeve 2 is coaxial with the pen cap 5, and the air-proof sleeve 2 has a movable space along the axial direction of the pen cap 5. The spring 6 is sleeved on the air-proof sleeve 2. One end of the spring 6 abuts against the pen cap 5, and the other end of the spring 6 abuts against the outer side wall of the air-proof sleeve 2.

[0041] In this embodiment, it should be noted that one end of the air-proof sleeve 2 facing the pen tip assembly is in a flared shape. A limiting ring groove 16 is provided inside the pen cap 5, and the limiting ring groove 16 is used to prevent the air-proof sleeve 2 from falling off the pen cap 5. Specifically, during assembly, the spring 6 is inserted into the pen cap 5 through the opening and reaches the bottom positioning rib plane. The air-proof sleeve 2 is inserted into the pen cap 5 through the opening, and the air-proof sleeve 2 is pressed into the pen cap 5 by a tool, passing over the limiting ring groove 16 inside the pen cap 5. The small end of the air-proof sleeve 2 is in clearance fit with the inner diameter of the spring 6, and the large end is limited by the limiting ring groove 16 inside the pen cap 5 and will not fall out.

[0042] Before the pen cap assembly is mated with the main body, the large end of the air-proof sleeve 2 is tightly attached to the limiting ring groove 16 inside the pen cap 5 due to the elastic force of the spring 6 and cannot fall out. After the pen cap assembly is mated, the air-proof sleeve is pushed 1 mm - 2 mm into the pen cap 5 by the interference fit thrust. The reaction force of the spring 6 will also give a thrust to the air-proof sleeve 2 towards the pen tip assembly, making the air-proof sleeve 2 fit tightly, thus achieving a sealing effect.

[0043] The pen barrel 12 is threadedly connected to the pen neck 9. An anti-slip sleeve is sleeved outside the pen neck 9, and the anti-slip sleeve is made of a rubber sleeve or a latex sleeve.

[0044] Furthermore, the pen cap assembly further includes a pen clip 1. The pen clip 1 is snap-connected to the pen cap 5. Specifically, the pen clip 1 is positioned and fitted with the pen cap 5 through a ring groove, and does not shake or rotate after assembly.

[0045] The technical effects achieved by this embodiment are as follows: By sleeving the spring 6 on the air-proof sleeve 2, the air-proof sleeve 2 is tightly attached to the pen tip assembly under the elastic force of the spring 6, thus forming a good sealing effect. During use, even if the air-proof sleeve 2 is deformed after long-term use, the spring 6 can continuously provide an elastic force to make the air-proof sleeve 2 tightly attached to the pen tip assembly, thereby continuously obtaining a good sealing effect, so that the sealing performance of the air-proof sleeve 2 is not affected by the number of plugging and unplugging times. The ink sac assembly is an independent and detachable component. During use, when the ink in the ink sac assembly is used up, after replacing the new ink sac assembly, it can continue to be used normally.

[0046] Embodiment 2

[0047] As Figures 1 to 10 shown, another replaceable ink sac structure and a direct liquid soft-tip propylene marker pen with guiding and sealing provided in this embodiment include all the contents of Embodiment 1. Only the different parts will be described below.

[0048] In this embodiment, the ink sac assembly includes an ink sac 11, a steel ball 10 and a tail plug 13. The ink sac 11 is provided with an ink storage cavity, which is arranged along the axis of the ink sac 11. The tail plug 13 is arranged at one end of the ink sac 11. Specifically, the tail plug 13 and the ink sac 11 are interference fit, and the end of the ink sac 11 away from the tail plug 13 is plugged into the pen neck 9.

[0049] The pen tip assembly includes a soft pen tip 3, a water guide core 4, a connecting piece 7 and a water reservoir 8, and the water reservoir 8 is arranged in the pen tip 9;

[0050] The water guide core 4 is arranged in the water reservoir 8 along the axial direction of the water reservoir 8, and both ends of the water guide core 4 extend outside the water reservoir 8;

[0051] The connecting member 7 is arranged at one end of the water reservoir 8 away from the ink bag assembly, and one end of the soft brush head 3 is inserted into the connecting member 7 and contacts the water guide core 4 .

[0052] In this embodiment, it should be noted that one end of the ink sac 11 is a large end 14, and the other end of the ink sac 11 is a small end 15, and the inner diameter of the large end 14 is greater than the inner diameter of the small end 15;

[0053] The tail plug 13 is arranged at the large head end 14, and the diameter of the steel ball 10 is adapted to the inner diameter of the small head end 15. The steel ball 10 can be inserted into the small head end 15 to seal it after interference fit;

[0054] The ink sac 11 and the tail plug 13 are fixedly sealed by the ring groove. There is a steel ball 10 inside the ink sac 11. When writing, by shaking the whole pen, the steel ball 10 can play a role in fully shaking the ink; in addition, the steel ball 10 is used to seal the inner hole of the small end 15 of the ink sac in the early stage. The ink sac 11 and the pen section 9 are plugged in and out by interference fit, and the pen section 9 and the pen shaft 12 are connected by thread fit; the water reservoir 8 is inserted through the large end of the pen section 9 to reach the internal stop position and has an interference fit with the pen section 9, and the water guide core 4 is inserted through the middle inner hole of the water reservoir 8 until it reaches the stop position of the pen section 9 to the water guide core 4; the soft pen head 3 is inserted into the inner hole of the connecting member 7 until it reaches the clamping position of the connecting member 7, and the soft pen head 3 is clamped to form a pen head assembly, and the pen head assembly and the front end of the pen section 9 and the water reservoir 8 are interfered by the ring groove;

[0055] Before filling ink, the steel ball 10 is put into the ink sac from the large mouth end, and then pressed into the small head end 15, with interference fit with the inner hole of the small head end 15; then, ink is poured in from the large head end 14. After the ink filling is completed, the tail plug 13 and the ink sac 11 cooperate through the annular groove to seal the ink sac 11; when the ink sac 11 is used to insert the pen section 9, the protruding part inside the pen section 9 will push the steel ball 10 into the ink sac 11, so that the ink channel is opened, and the ink flows into the water reservoir 8 through the pen section 9 and reaches the soft pen tip 3 through the water guide core 4.

[0056] The technical effects achieved in this embodiment are as follows: The ink sac assembly is an independent component with a simple structure, which is convenient for processing and manufacturing. At the same time, the ink sac assembly is detachable, making it convenient to disassemble and assemble. During use, when the ink in the ink sac 11 is used up, after use, unscrew the pen barrel 12, then pull out the used ink sac 11, replace it with a new ink sac 11, and tighten the pen barrel 12 to continue using.

[0057] Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

[0058] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships shall also be regarded as the scope of implementation of the present invention when there is no substantial change in the technical content.

Claims

1. A direct liquid soft-tip acrylic marker pen with a replaceable ink bag structure and a guide seal, characterized in that: The invention comprises a pen cap assembly, a pen tip assembly, an ink bag assembly, a pen section (9) and a pen body (12), wherein the ink bag assembly is detachably arranged in the pen body (12), one end of the pen section (9) is detachably connected to one end of the pen body (12), the pen tip assembly is arranged in the pen section (9), the ink supply end of the ink bag assembly is plugged into the pen section (9), and the pen cap assembly is plugged into the pen section (9); The pen cap assembly comprises a pen cap (5), an air-proof sleeve (2) and a spring (6); the air-proof sleeve (2) is arranged inside the pen cap (5); the air-proof sleeve (2) is coaxial with the pen cap (5), and the air-proof sleeve (2) has a movable space along the axial direction of the pen cap (5); the spring (6) is sleeved on the air-proof sleeve (2); one end of the spring (6) abuts against the pen cap (5), and the other end of the spring (6) abuts against the outer wall of the air-proof sleeve (2).

2. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: One end of the air-proof sleeve (2) facing the pen head assembly is in a bell-mouth shape.

3. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 2, characterized in that: A limiting ring groove (16) is provided inside the pen cap (5), and the limiting ring groove (16) is used to prevent the anti-air sleeve (2) from falling off from the pen cap (5).

4. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: The pen cap assembly further comprises a pen clip (1), and the pen clip (1) is clamped with the pen cap (5).

5. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: The ink sac assembly comprises an ink sac (11), a steel ball (10) and a tail plug (13); an ink storage cavity is provided in the ink sac (11), and the ink storage cavity is arranged along the axis of the ink sac (11); the tail plug (13) is arranged at one end of the ink sac (11); and the end of the ink sac (11) away from the tail plug (13) is plugged into the pen neck (9).

6. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 5, characterized in that: One end of the ink sac (11) is a large end (14), and the other end of the ink sac (11) is a small end (15), and the inner diameter of the large end (14) is greater than the inner diameter of the small end (15); The tail plug (13) is arranged at the large head end (14), the diameter of the steel ball (10) is matched with the inner diameter of the small head end (15), and the steel ball (10) can be inserted into the small head end (15) and seal it.

7. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 6, characterized in that: The tail plug (13) is interference fit with the ink bag (11).

8. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: The pen tip assembly comprises a soft pen tip (3), a water guide core (4), a connecting piece (7) and a water reservoir (8), wherein the water reservoir (8) is arranged in the pen neck (9); The water guide core (4) is arranged in the water reservoir (8) along the axial direction of the water reservoir (8), and both ends of the water guide core (4) extend outside the water reservoir (8); The connecting piece (7) is arranged at one end of the water reservoir (8) away from the ink bag assembly, and one end of the soft brush head (3) is inserted into the connecting piece (7) and contacts the water guide core (4).

9. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: The pen holder (12) is threadedly connected to the pen neck (9).

10. A direct liquid type soft-tip acrylic marker pen with replaceable ink bag structure and guide seal according to claim 1, characterized in that: The outer cover of the pen item (9) is provided with an anti-slip cover.

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