Direct liquid type propylene drawing pen

Abstract

The utility model discloses a direct liquid type propylene drawing pen which comprises a pen holder, a water storage device installed in the open end of the pen holder, a connector installed at the open end of the pen holder, a pen point installed on the connector and a water diversion core, a cavity for storing ink is arranged in the pen holder, the water storage device is provided with a center hole, and the water diversion core is tightly matched in the center hole. The upper end of the ink guide core extends into the cavity, and the lower end of the ink guide core elastically abuts against the pen point. An ink mixing ball is installed in the cavity, a circular truncated cone is arranged at the end, facing the cavity, of the water storage device, a through groove is formed in the circular truncated cone in the radial direction, and the width of the through groove is larger than the diameter of the water diversion core and smaller than the diameter of the ink mixing ball. And a gap for ink to flow is reserved between the outer circumferential surface of the upper end of the ink leading core and the inner wall of the through groove. The ink mixing ball is stopped by using the circular truncated cone, so that the ink mixing ball can be effectively prevented from impacting the ink leading core, and meanwhile, the ink leading core can be ensured to be fully contacted with ink.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pen technical field, especially a direct liquid type propylene drawing pen. BACKGROUND

[0002] In the field of drawing tools, direct liquid type drawing pens are universally loved by drawing enthusiasts and professional artists due to their smooth ink flow and easy-to-use characteristics. Propylene pigments, as a common drawing material, have the advantages of fast drying, bright colors, and long-lasting durability, and are widely used in direct liquid type drawing pens.

[0003] During the use of the direct liquid type propylene drawing pen, the pigment particles in the propylene pigment have a large specific gravity, which can easily cause sedimentation and uneven distribution when at rest. This not only affects the consistency and uniformity of the colors during drawing, but also can cause the texture and effect of the brush strokes to not meet expectations. Previous solutions generally involved installing a ball in the pen barrel to agitate the ink by shaking the pen barrel. This can effectively address the problem of pigment sedimentation. However, since the existing direct liquid type propylene drawing pen uses a tight fitting method to install the water guide core in the water reservoir, and the end of the water guide core needs to extend into the chamber of the pen barrel to ensure full contact with the ink, the ball will hit the water guide core during the rolling process, especially when the user shakes it vigorously. This not only easily causes damage to the water guide core, but also easily causes the water guide core to shift, affecting its ink guiding effect and reducing the service life of the direct liquid type propylene drawing pen. Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. SUMMARY

[0004] The problem to be solved by the utility model is to provide a direct liquid type propylene drawing pen to overcome the defect that the existing direct liquid type propylene drawing pen is easily damaged or shifted by the ball impact, thereby affecting the ink guiding effect.

[0005] The utility model discloses a direct liquid type propylene drawing pen which comprises a pen barrel with a hollow interior and a closed one end and an open other end, a water reservoir installed inside the open end of the pen barrel, a joint installed on the open end of the pen barrel, a pen head installed on the joint, and a water guide core, wherein the interior of the pen barrel is provided with a chamber storing ink, the interior of the water reservoir is provided with a central hole penetrating through both ends along an axis, the water guide core is tightly fitted in the central hole, the upper end of the water guide core extends into the chamber and contacts with the ink, and the lower end of the water guide core elastically abuts against the pen head; a mixed ink ball is installed in the chamber, and the mixed ink ball can freely move in the chamber to agitate the ink; one end of the water reservoir facing the chamber is provided with a circular table, the circular table is provided with a through groove in a radial direction, the width of the through groove is greater than the diameter of the water guide core and less than the diameter of the mixed ink ball, the upper end of the water guide core is located in the through groove and does not protrude out of the circular table in the axial direction, and a gap for the ink to flow is left between the outer circumferential surface of the upper end of the water guide core and the inner wall of the through groove.

[0006] As a further improvement of the utility model, the two ends of the through groove penetrate through the outer circumferential surface of the circular table, and the top of the through groove is connected to the chamber in an upward direction.

[0007] As a further improvement of the utility model, the lower end of the water guide core is provided with a first pointed end portion in a conical shape, and the first pointed end portion is elastically deformed by being abutted by the pen head.

[0008] As a further improvement of the utility model, the upper end of the water guide core is provided with a second pointed end portion in a conical shape, and the second pointed end portion has the same structure as the first pointed end portion and is symmetrically distributed.

[0009] As a further improvement of the utility model, the central hole is circular, and the inner diameter of the central hole gradually decreases from the lower end to the upper end.

[0010] As a further improvement of the utility model, the diameter of the mixed ink ball is greater than the distance between the circular table and the inner wall of the chamber.

[0011] As a further improvement of the utility model, the water guide core is made of any one of polyester fiber, acrylic fiber, and POM microporous plastic.

[0012] As a further improvement of the utility model, the pen head is made of any one of nylon fiber, polyester fiber, acrylic fiber, and PE sintered material.

[0013] As a further improvement of the utility model, the middle part of the joint is provided with a mounting hole penetrating through the upper and lower ends, the mounting hole is provided with a buckle along the inner wall, the pen head is provided with an annular clamping groove along the outer circumference at the position close to the upper end, and the upper end of the pen head is inserted into the mounting hole and the buckle is clamped in the annular clamping groove.

[0014] As a further improvement of the utility model, the upper end of the joint is provided with a concentric inner convex ring and outer convex ring, the bottom of the water reservoir is provided with a hollow convex column, the convex column is inserted into the inner convex ring in interference fit, and the outer convex ring is inserted into the open end of the pen barrel in interference fit.

[0015] The utility model discloses a direct liquid type propylene drawing pen, which is characterized in that a circular table is arranged at one end of the water reservoir facing the cavity, a through groove is arranged on the circular table in the radial direction, the upper end of the water guide core is inserted into the through groove and does not protrude out of the circular table in the axial direction, and a gap for ink flow is left between the outer circumferential surface of the upper end of the water guide core and the inner wall of the through groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the direct liquid type propylene drawing pen of the utility model;

[0017] Figure 2 It is a sectional view of the direct liquid type propylene drawing pen of the utility model;

[0018] Figure 3 It is a perspective view of the direct liquid type propylene drawing pen of the utility model after the cap is removed;

[0019] Figure 4 It is a perspective view of the direct liquid type propylene drawing pen of the utility model after the cap and the pen barrel are removed;

[0020] Figure 5 It is an exploded view of the direct liquid type propylene drawing pen of the utility model after the cap and the pen barrel are removed;

[0021] Figure 6 It is a direct liquid type propylene drawing pen of the utility model Figure 2 It is an enlarged view of the middle A part of the direct liquid type propylene drawing pen of the utility model.

[0022] The following description is made in combination with the drawings:

[0023] 1, pen holder; 101, chamber; 2, water reservoir; 2011, central hole; 201, circular table; 202, through slot; 203, convex column; 3, joint; 301, mounting hole; 302, buckle; 303, inner convex ring; 304, outer convex ring; 4, pen head; 401, annular clamping groove; 5, water guide core; 501, first pointed end; 502, second pointed end; 6, ink mixing ball; 7, pen cap. DETAILED DESCRIPTION

[0024] The preferred embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0025] Referring to Figures 1 to 6 The present application provides a direct liquid type propylene drawing pen, which comprises a pen holder 1, a water reservoir 2, a joint 3, a pen head 4, a water guide core 5, an ink mixing ball 6 and a pen cap 7.

[0026] The pen holder 1 is a hollow cylinder with a closed upper end and an open lower end. The pen holder 1 has a chamber 101 inside for storing ink. The ink mixing ball 6 is accommodated in the chamber 101. During use or shaking of the direct liquid type propylene drawing pen, the ink mixing ball 6 can move freely in the chamber 101 to stir the ink, making the ink more uniform and preventing the pigments from precipitating and affecting the drawing effect.

[0027] In the present application, the ink mixing ball 6 can be a steel ball.

[0028] Referring to Figure 2 and Figure 3 The water reservoir 2 is installed inside the open end of the pen holder 1. The pen holder 1 has a step along the inner wall near the open end. The upper end face edge of the water reservoir 2 is stopped upward on the stop step. The joint 3 is installed on the open end of the pen holder 1, and the joint 3 presses the water reservoir 2, thereby positioning the water reservoir 2.

[0029] Further, the pen head 4 is installed on the joint 3. The upper end of the pen head 4 is inserted into the joint 3, and the lower end of the pen head 4 extends out of the joint 3 for drawing use. In this embodiment, the lower end of the pen head 4 is cylindrical. The pen cap 7 is sleeved on the pen holder 1 and cooperates with the joint 3 to seal the pen head 4, preventing the ink from evaporating and drying out.

[0030] Exemplarily, the pen head 4 can be made of any one of nylon fiber, polyester fiber, acrylic fiber and PE sintered material.

[0031] Further, the inside of the water reservoir 2 is provided with a center hole 2011 along the axis and penetrating through both ends thereof, the inner diameter of the center hole 2011 is smaller than the outer diameter of the water guide core 5, and the water guide core 5 is tightly fitted in the center hole 2011 to realize the fixation of the water guide core 5. The upper end of the water guide core 5 extends into the chamber 101 to contact the ink, and the lower end of the water guide core 5 elastically abuts against the top of the pen head 4. Exemplarily, the water guide core 5 can be made of any one of polyester fiber, acrylic fiber and POM microporous plastic. The capillary action of the water guide core 5 can continuously guide the ink in the chamber 101 to the pen head 4, thereby ensuring the continuity of drawing.

[0032] Referring to Figure 4 , the one end of the water reservoir 2 facing the chamber 101 is provided with a circular table 201, the circular table 201 is provided with a through groove 202 along the radial direction, the width of the through groove 202 is greater than the diameter of the water guide core 5 and smaller than the diameter of the ink mixing ball 6, the upper end of the water guide core 5 is located in the through groove 202 and does not protrude out of the circular table 201 in the axial direction, and the outer circumferential surface of the upper end of the water guide core 5 and the inner wall of the through groove 202 leave a gap for the ink flow.

[0033] When the ink mixing ball 6 is irregularly and freely moved in the chamber 101 during the use or shaking of the straight liquid type acrylic drawing pen, since the upper end of the water guide core 5 is located in the through groove 202 and does not protrude out of the circular table 201 in the axial direction, the circular table 201 can stop the ink mixing ball 6, thereby effectively preventing the ink mixing ball 6 from impacting the water guide core 5, and thus the water guide core 5 is well protected, and the service life of the straight liquid type acrylic drawing pen is ensured. In addition, by reasonably designing the size of the through groove 202, the outer circumferential surface of the upper end of the water guide core 5 and the inner wall of the through groove 202 leave a gap for the ink flow, so as to facilitate the ink flow, ensure that the upper end of the water guide core 5 is fully in contact with the ink, and improve the ink guiding effect of the water guide core 5.

[0034] It should be noted that the ink storage and air return principles of the water reservoir 2 in the present application are the same as those of the prior art, and the structure of the water reservoir 2 for realizing the ink storage and air return is not improved in the present application, so it will not be described again.

[0035] Continuously referring to Figure 4 , in the present application, the two ends of the through groove 202 penetrate the outer circumferential surface of the circular table 201 along the radial direction, and the top of the through groove 202 is communicated with the chamber 101 upward, so that the upper end of the water guide core 5 is completely immersed in the ink, and the upper end of the water guide core 5 is fully in contact with the ink.

[0036] Referring to Figure 5The lower end of the water guiding core 5 is provided with a conical first tip portion 501, and the first tip portion 501 is abutted by the pen head 4 to be elastically deformed. The conical first tip portion 501 can produce more elastic deformation, the assembly precision requirement of the water guiding core 5 can be reduced, the water guiding core 5 can reliably contact the pen head 4, and thus the water guiding core 5 can continuously guide the ink to flow to the pen head 4.

[0037] In a preferred embodiment of the utility model, the upper end of the water guiding core 5 is provided with a conical second tip portion 502, the second tip portion 502 is the same as the first tip portion 501 and is symmetrically distributed, so that the water guiding core 5 can be assembled without distinguishing the direction, and the assembly is more convenient. Of course, in other embodiments of the utility model, only the lower end of the water guiding core 5 can be conical, and the upper end can be cylindrical, and the water guiding core 5 can be assembled by distinguishing the front and back directions.

[0038] In the utility model, the central hole 2011 of the water storage device 2 is circular, and the inner diameter of the central hole 2011 gradually decreases from bottom to top. This structure design not only facilitates demolding during injection molding of the water storage device 2, but also facilitates the water guiding core 5 to be inserted into the central hole 2011 from bottom to top, and facilitates assembly.

[0039] In the utility model, the diameter of the ink mixing ball 6 is greater than the distance between the circular table 201 and the inner wall of the cavity 101. On the one hand, the ink mixing ball 6 has a certain volume, which ensures the ink stirring effect, and on the other hand, the ink mixing ball 6 is prevented from entering the gap between the circular table 201 and the inner wall of the cavity 101 to cause jamming.

[0040] Referring to Figure 2 and Figure 6 The middle part of the joint 3 is provided with a mounting hole 301 penetrating through the upper and lower ends thereof, the mounting hole 301 is provided with a buckle 302 along the inner wall, the pen head 4 is located at a position close to the upper end thereof and is provided with an annular clamping groove 401 along the outer circumference, the upper end of the pen head 4 is inserted into the mounting hole 301 and the buckle 302 is clamped in the annular clamping groove 401, which can effectively prevent the pen head 4 from being pulled out of the joint 3.

[0041] Further, the upper end of the joint 3 is provided with a concentric inner convex ring 303 and an outer convex ring 304, the bottom of the water storage device 2 is provided with a hollow convex column 203, the convex column 203 is inserted into the inner convex ring 303 in an interference fit, the outer convex ring 304 is inserted into the open end of the pen barrel 1 in an interference fit, and the annular table on the outer circumferential surface of the joint 3 abuts against the end face of the pen barrel 1, so as to realize the fixed assembly of the joint 3, the water storage device 2 and the pen barrel 1, and the assembly is simple and convenient.

[0042] Therefore, the straight liquid type acrylic drawing pen has the advantages that the straight liquid type acrylic drawing pen is provided with a circular table 201 at one end of the water reservoir 2 facing the cavity 101, and the upper end of the water guide core 5 extends into the through groove 202 on the circular table 201 in the radial direction and does not protrude out of the circular table 201 in the axial direction, and a gap for ink flow is left between the outer circumferential surface of the upper end of the water guide core 5 and the inner wall of the through groove 202, the mixed ink ball 6 moves freely in the cavity 101 during use or shaking of the straight liquid type acrylic drawing pen, the mixed ink ball 6 is stopped by the circular table 201, the mixed ink ball 6 can be effectively prevented from impacting the water guide core 5, the water guide core 5 is well protected, and the service life of the straight liquid type acrylic drawing pen is ensured; meanwhile, the size of the through groove 202 is reasonably designed, the gap for ink flow is left between the outer circumferential surface of the upper end of the water guide core 5 and the inner wall of the through groove 202, ink flow is facilitated, the upper end of the water guide core 5 is ensured to be in full contact with the ink, and the ink guiding effect of the water guide core 5 is improved.

[0043] In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the above descriptions are only preferred embodiments of the present application, and the present application can be implemented in many different ways from those described herein, so the present application is not limited by the above disclosed specific implementations. Meanwhile, any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments, without departing from the scope of the technical solutions of the present application, by using the disclosed methods and technical contents. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the scope of the technical solutions of the present application, are still within the protection scope of the technical solutions of the present application.

Claims

1. A liquid direct propylene drawing pen, comprising a pen barrel (1) which is internally hollow and has one end closed and the other end open, a water reservoir (2) which is mounted inside the open end of the pen barrel (1), a connector (3) which is mounted on the open end of the pen barrel (1), a pen head (4) which is mounted on the connector (3), and a water guide core (5), the interior of the pen barrel (1) is provided with a chamber (101) which stores ink, the interior of the water reservoir (2) is provided with a central hole (2011) which penetrates through both ends along an axis, the water guide core (5) is tightly fitted in the central hole (2011), and the upper end of the water guide core (5) extends into the chamber (101) and is in contact with the ink, and the lower end of the water guide core (5) elastically abuts against the pen head (4); characterized in that: The chamber (101) is provided with a mixing ball (6) which can move freely in the chamber (101) to stir the ink; one end of the ink reservoir (2) facing the chamber (101) is provided with a circular table (201), the circular table (201) is provided with a radial through groove (202), the width of the through groove (202) is greater than the diameter of the water guide core (5) and less than the diameter of the mixing ball (6), the upper end of the water guide core (5) is located in the through groove (202) and does not protrude axially from the circular table (201), and the outer circumferential surface of the upper end of the water guide core (5) and the inner wall of the through groove (202) are left with a gap for the flow of ink.

2. The liquid straight drawing pen according to claim 1, wherein: Both ends of the through groove (202) penetrate the outer circumferential surface of the circular table (201), and the top of the through groove (202) is connected to the chamber (101) upwardly.

3. The liquid straight drawing pen for acrylic paint according to claim 1, characterized in that: The lower end of the water guide core (5) is provided with a conical first pointed end portion (501), and the first pointed end portion (501) is elastically deformed by the pen head (4).

4. The liquid straight drawing pen for acrylic paint according to claim 3, characterized in that: The upper end of the water guide core (5) is provided with a conical second pointed end portion (502), which is the same structure as the first pointed end portion (501) and is symmetrically distributed.

5. The liquid straight drawing pen for acrylic paint according to claim 1, characterized in that: The central hole (2011) is circular, and the inner diameter of the central hole (2011) gradually decreases from bottom to top.

6. The liquid straight drawing pen for acrylic paint according to claim 1, wherein: The diameter of the mixing ball (6) is greater than the distance between the circular table (201) and the inner wall of the chamber (101).

7. The liquid straight drawing pen for acrylic paint according to claim 1, wherein: The water guide core (5) is made of any one of polyester fiber, acrylic fiber, POM microporous plastic.

8. The liquid straight drawing pen for acrylic paint according to claim 1, wherein: The pen head (4) is made of any one of nylon fiber, polyester fiber, acrylic fiber, PE sintered material.

9. The liquid straight drawing pen for acrylic paint according to claim 1, characterized in that: The middle part of the connector (3) is provided with a mounting hole (301) penetrating the upper and lower ends thereof, the mounting hole (301) is provided with a buckle (302) along the inner wall, the pen head (4) is located near the upper end thereof and is provided with an annular clamping groove (401) along the outer circumference, the upper end of the pen head (4) is inserted into the mounting hole (301) and the buckle (302) is clamped in the annular clamping groove (401).

10. The liquid straight drawing acrylic paint brush according to claim 1, wherein: The upper end of the connector (3) is provided with a concentric inner convex ring (303) and an outer convex ring (304), the bottom of the ink reservoir (2) is provided with a hollow convex column (203), the convex column (203) is inserted into the inner convex ring (303) with interference, and the outer convex ring (304) is inserted into the open end of the pen barrel (1) with interference.

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