Water color pen capable of preventing pen point from retracting inwards

Abstract

The utility model discloses a water color pen capable of preventing a pen point from retracting inwards, which belongs to the technical field of water color pens and comprises a pen holder shell, a movable inner core capable of sliding is arranged in the pen holder shell, a buffering force adjusting part is arranged at the rear end of the pen holder shell, a buffering spring is arranged between the buffering force adjusting part and the movable inner core, and the buffering force adjusting part can adjust the initial compression degree of the buffering spring. According to the technical scheme, when the water color pen falls and the pen point core faces the ground, the impact force is large, the movable inner core can be pushed to integrally overcome the thrust of the buffer spring to slide and retract inwards, the pen point core is buffered and protected, the pen point core is prevented from retracting inwards under the action of the impact force, and after the impact force disappears, the buffer spring can push the movable inner core to slide outwards, so that the water color pen is protected. In addition, the buffering force adjusting piece can adjust the pushing force initially applied by the buffering spring so as to adapt to the use of different people, and the situation that normal use is affected due to the fact that the pen point automatically retracts inwards due to the fact that the pressure applied by the hand is large in the use process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of watercolor pen technology, specifically a watercolor pen that prevents the nib from retracting. Background Technology

[0002] Watercolor pens are a common painting tool, typically consisting of three parts: the barrel, the nib, and the refill. The barrel, as the supporting structure, needs to be straight and sturdy, and is made of various materials, including plastic and wood, to facilitate grip and protect the internal structure. Nibs come in a variety of designs, such as round, flat, and fan-shaped, with different shapes suitable for outlining, filling in colors, or creating smooth transitions. They are often made of nylon or fiber, offering good elasticity and abrasion resistance. The refill contains colored ink. Single-color watercolor pens use a single refill, while two-color or multi-color pens use special structures such as sponges or fibers to achieve even ink distribution. Some designs also incorporate insulating structures to prevent color mixing.

[0003] The utility model patent with announcement number CN215705302U discloses a watercolor pen, including a pen shell, a pen tip, and a pen cap. Each time the pen cap is closed with the pen shell, the shell and the pen shell are rotated by a threaded connection, and ink enters the pen slot through the opening to add ink to the pen tip, thus preventing the pen tip from drying out. The pen is designed with a double seal of a sealing cap and a sealing sleeve to prevent ink leakage when the cap is not closed. During the ink filling process, the ink will not stain the fingers or the table, and the pen tip will not be isolated from the outside world at the same time, reducing ink evaporation.

[0004] While the aforementioned watercolor pens can add ink to the nib to prevent it from drying out, the connection between the nib and the pen casing is the same as that of most common watercolor pens on the market: the nib is inserted into the pen casing. When the watercolor pen is dropped during use with the nib facing down, the nib will retract under the impact, meaning the outward extension of the nib will be significantly shortened. This may render the watercolor pen unusable, requiring the nib to be pulled out a certain distance before it can be used normally again. If this happens repeatedly, the friction between the nib and the pen casing will be insufficient, making it impossible to effectively hold the nib in place during subsequent use. This will cause the nib to slide and become unusable. Therefore, to address the above problem, a watercolor pen that prevents the nib from retracting is proposed. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide a watercolor pen that prevents the tip from retracting. This watercolor pen consists of two parts: a pen barrel shell and a movable inner core. The pen barrel shell has a buffer force adjustment component at its end, and a buffer spring is installed between the buffer force adjustment component and the movable inner core. When the watercolor pen is dropped, the impact force is large, causing the movable inner core to slide inward against the force of the buffer spring, thus buffering the tip and protecting it from retraction under impact. After the impact force disappears, the buffer spring pushes the movable inner core outward, allowing the tip to return to its original position for continued use. Furthermore, the buffer force adjustment component can adjust the initial force applied by the buffer spring to suit different users, preventing the tip from retracting due to excessive hand pressure during use, thus ensuring normal use. This solves the technical problem in the prior art where, when a watercolor pen is dropped with the tip facing down, the tip retracts under impact and cannot return to its original position, rendering the watercolor pen unusable.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A watercolor pen designed to prevent tip retraction includes a pen barrel shell with a sliding movable inner core inside. A buffer force adjustment component is installed at the rear end of the pen barrel shell, and a buffer spring is provided between the buffer force adjustment component and the movable inner core. The buffer spring applies a pushing force to the movable inner core, and the buffer force adjustment component can adjust the initial compression degree of the buffer spring. The movable inner core includes an inner core shell with a pen tip fixedly installed at its front end. Inside the inner core is a sponge core that absorbs paint, and the rear end of the pen tip core is inserted into the sponge core. When the watercolor pen is dropped with the pen tip core facing the ground, the impact force is relatively large, which will push the movable inner core to slide inward against the pushing force of the buffer spring, thus buffering and protecting the pen tip core and preventing it from retracting under the impact force. When the impact force disappears, the buffer spring will push the movable inner core outward, allowing the pen tip core to return to its original position for continued use. In addition, the buffer force adjustment component can adjust the initial pushing force applied by the buffer spring to suit different users and avoid situations where the pen tip retracts on its own due to excessive pressure applied by the hand during use, affecting normal use.

[0008] In one possible implementation, the buffer force adjusting component includes a cylindrical shell with a hexagonal groove inside, in which a sliding pressing component is provided. The sliding pressing component includes a hexagonal shaft and an end piece. The hexagonal shaft is slidably connected to the cylindrical shell. One end of the buffer spring abuts against the inner core shell, and the other end abuts against the end piece. When the sliding pressing component moves closer to the buffer spring, it applies pressure to the buffer spring, causing it to gradually compress. When the sliding pressing component moves away from the buffer spring, the buffer spring extends and releases, thereby adjusting the initial compression degree of the buffer spring.

[0009] In one possible implementation, the outer end of the shell is provided with a shaft, in which an adjusting rod is rotatably connected. The end of the adjusting rod near the sliding extruder is threaded, and the adjusting rod passes through the sliding extruder and is threadedly connected to it. In addition, an adjusting wheel is fixedly connected to the outer end of the adjusting rod. During adjustment, the adjusting rod is rotated by turning the adjusting wheel, thereby driving the sliding extruder threadedly connected to it to move back and forth.

[0010] In one possible implementation, a connecting sleeve is fixedly sleeved on the outer shell of the cylinder, which is threadedly connected to the rear end of the pen barrel shell. This structure enables a detachable connection between the buffer force adjustment component and the pen barrel shell.

[0011] In one possible implementation, the pen barrel outer shell and the movable inner core are slidably connected by a rolling connector. The connector includes: several sets of arrayed spherical grooves on the outer wall of the inner core outer shell; ball bearings that are slidably mounted in the spherical grooves; and an anti-detachment ring covering the spherical grooves. The inner wall of the pen barrel outer shell has strip grooves corresponding to the ball bearings. This structure enables the rolling connection between the pen barrel outer shell and the movable inner core through the ball bearings, thereby significantly reducing the friction between the two and preventing the friction between them from hindering the inward retraction of the movable inner core and failing to provide effective protection in the event of a fall.

[0012] In one possible implementation, a limiting ring is fixedly provided on the inner wall of the front part of the pen barrel shell, and a retaining ring corresponding to the limiting ring is fixedly provided on the outer wall of the front part of the inner core shell. The above structure can play a positioning role in the initial position of the movable inner core.

[0013] In one possible implementation, a fixing plug is fixedly provided inside the front end of the inner core shell, which is sleeved on the pen tip and fixedly connected to it. This structure can strengthen the fixed connection between the pen tip and the inner core shell and prevent it from shrinking inward relative to the inner core shell.

[0014] In one possible implementation, the inner wall of the inner core shell is fixedly provided with a plurality of locking ridges arranged in a circumferential array. When the sponge core is inserted into the inner core shell, the outer wall of the sponge core fits against the locking ridges. The above structure can ensure that a gap is left between the sponge core and the inner wall of the inner core shell when the sponge core is installed, to prevent a tight fit that would cause greater friction and make it inconvenient to insert and remove the sponge core.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] This watercolor pen consists of two parts: a pen barrel shell and a movable inner core. The pen barrel shell has a buffer force adjustment component at the end, and a buffer spring is installed between the buffer force adjustment component and the movable inner core. When the watercolor pen is dropped, the impact force is large, which will push the movable inner core to slide inward against the push force of the buffer spring, thus playing a buffering role and protecting the pen tip from shrinking inward under the impact force. When the impact force disappears, the buffer spring will push the movable inner core outward to reset the pen tip for continued use.

[0017] In addition, the buffer force adjustment component can adjust the initial thrust applied by the buffer spring to suit different users and prevent the pen tip from retracting on its own due to excessive pressure applied by the hand during use, thus affecting normal use. Specifically, the buffer force adjustment component can change the initial compression degree of the buffer spring, thereby adjusting its initial maximum resistance to suit people with different hand force levels when drawing. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structural configuration of this utility model;

[0021] Figure 3 This is a schematic diagram of the movable inner core structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the buffer force adjusting component of this utility model;

[0023] Figure 5 This is a partial structural schematic diagram of the present invention.

[0024] In the diagram: 1. Pen barrel outer shell; 11. Limiting ring; 2. Movable inner core; 21. Snap ring; 201. Inner core outer shell; 202. Sponge core; 203. Pen tip core; 204. Fixing plug; 205. Snap ridge; 3. Buffer force adjusting component; 31. Cylinder shell; 32. Sliding pressing component; 33. Shaft cylinder; 34. Adjusting rod; 35. Adjusting wheel; 36. Connecting cylinder; 4. Buffer spring; 5. Rolling connecting component; 51. Ball bearing; 52. Anti-detachment ring. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 - Figure 3 As shown, this embodiment provides a watercolor pen with anti-tip retraction, including a pen barrel shell 1, inside which is a slidable movable inner core 2 and a buffer force adjusting member 3 installed at the rear end of the pen barrel shell 1. A buffer spring 4 is provided between the buffer spring 3 and the movable inner core 2. The buffer spring 4 applies a pushing force to the movable inner core 2, and the buffer force adjusting member 3 can adjust the initial compression degree of the buffer spring 4. The movable inner core 2 includes an inner core shell 201, at the front end of which a pen tip core 203 is fixedly installed. Inside the inner core 2 is a sponge core 202 that absorbs pigment. The rear end of the pen tip core 203 is inserted into the sponge core 202. When water... When a colored pencil falls with the tip 203 facing the ground, the impact is significant. This causes the movable inner core 2 to slide inward against the force of the buffer spring 4, thus cushioning and protecting the tip 203 from shrinking under the impact. Once the impact is gone, the buffer spring 4 pushes the movable inner core 2 outward, allowing the tip 203 to return to its original position for continued use. Furthermore, the buffer force adjustment component 3 can adjust the initial force applied by the buffer spring 4 to suit different users and prevent the tip from shrinking inward due to excessive pressure from the hand during use, thus affecting normal use.

[0027] like Figure 4 As shown, the buffer force adjusting component 3 includes a cylindrical shell 31 with a hexagonal groove inside, in which a sliding pressing component 32 is provided. The sliding pressing component 32 includes a hexagonal shaft and an end piece. The hexagonal shaft is slidably connected to the cylindrical shell 31. One end of the buffer spring 4 abuts against the inner core shell 201, and the other end abuts against the end piece. When the sliding pressing component 32 moves closer to the buffer spring 4, it applies pressure to the buffer spring 4, causing it to gradually compress. When the sliding pressing component 32 moves away from the buffer spring 4, the buffer spring 4 extends and releases, thereby adjusting the initial compression degree of the buffer spring 4. The outer end of the cylindrical shell 31 is provided with a shaft cylinder 33, in which an adjusting rod 34 is rotatably connected. The end of the adjusting rod 34 near the sliding pressing component 32 is threaded, and the adjusting rod 34 passes through the sliding pressing component 32 and is threadedly connected to it. In addition, an adjusting wheel 35 is fixedly connected to the outer end of the adjusting rod 34. During adjustment, the adjusting rod 34 is rotated by turning the adjusting wheel 35, thereby driving the sliding pressing component 32, which is threadedly connected to it, to move back and forth.

[0028] In addition, in order to achieve a detachable connection between the buffer force adjustment component 3 and the pen barrel housing 1, a connecting cylinder 36 is fixedly sleeved on the outer side of the cylindrical housing 31, which is threadedly connected to the rear end of the pen barrel housing 1. This structure enables a detachable connection between the buffer force adjustment component 3 and the pen barrel housing 1.

[0029] To further reduce friction between the pen barrel outer shell 1 and the movable inner core 2 and improve the sensitivity of the cushioning effect, the two are slidably connected by a rolling connector 5. This connector includes: several arrayed spherical grooves on the outer wall of the inner core shell 201; ball bearings 51 rolled within these grooves; and an anti-detachment ring 52 covering the spherical grooves. The inner wall of the pen barrel outer shell 1 has strip-shaped grooves corresponding to the ball bearings 51. This structure enables a rolling connection between the pen barrel outer shell 1 and the movable inner core 2 through the ball bearings 51, thereby significantly reducing friction between them. This prevents the friction from hindering the inward retraction of the movable inner core 2 during a fall, thus ensuring effective protection. Figure 5 As shown.

[0030] like Figure 2 As shown, a limiting ring 11 is fixedly provided on the inner wall of the front part of the pen barrel shell 1, and a retaining ring 21 corresponding to the limiting ring 11 is fixedly provided on the outer wall of the front part of the inner core shell 201. The above structure can play a positioning role in the initial position of the movable inner core 2.

[0031] like Figure 3 As shown, a fixing plug 204 is fixedly installed inside the front end of the inner core shell 201. It is sleeved on the outside of the pen tip 203 and fixedly connected to it. This structure can strengthen the fixed connection between the pen tip 203 and the inner core shell 201 and prevent it from shrinking inward relative to the inner core shell 201.

[0032] like Figure 5 As shown, the inner wall of the inner core shell 201 is fixedly provided with a plurality of locking ridges 205 arranged in a circumferential array. When the sponge core 202 is inserted into the inner core shell 201, the outer wall of the sponge core 202 fits against the locking ridges 205. The above structure can ensure that when the sponge core 202 is installed, there is a gap between it and the inner wall of the inner core shell 201 to prevent a tight fit from generating large friction, which would make it inconvenient to insert and remove the sponge core 202.

[0033] The working principle and usage process of this utility model:

[0034] The watercolor pen consists of two parts: a pen barrel shell 1 and a movable inner core 2. The pen barrel shell 1 has a buffer force adjustment component 3 at its end, and a buffer spring 4 is provided between the buffer force adjustment component 3 and the movable inner core 2. When the watercolor pen is dropped, the impact force is large, which will push the movable inner core 2 to slide inward against the push force of the buffer spring 4, thus playing a buffering role and protecting the pen tip from shrinking inward under the impact force. When the impact force disappears, the buffer spring 4 will push the movable inner core 2 outward, so that the pen tip can be reset for continued use.

[0035] In addition, the buffer force adjustment component 3 can adjust the initial thrust applied by the buffer spring 4 to suit the use of different people and avoid the situation where the pen tip retracts on its own due to excessive pressure applied by the hand during use, thus affecting normal use. Specifically, when adjusting, the adjustment wheel 35 is turned to rotate the adjustment rod 34, which in turn drives the sliding pressing component 32, which is threaded to it, to move back and forth. When the sliding pressing component 32 moves closer to the buffer spring 4, it applies pressure to the buffer spring 4 to gradually compress it. When the sliding pressing component 32 moves away from the buffer spring 4, the buffer spring 4 will extend and release, thereby adjusting the initial compression degree of the buffer spring 4.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A watercolor pen that prevents the tip from retracting, characterized by, The utility model relates to a pen barrel shell (1) internally provided with a slidable movable inner core (2), a buffer force adjusting part (3) installed at the rear end of the pen barrel shell (1) and provided with a buffer spring (4) between the movable inner core (2), the buffer spring (4) applies a pushing force to the movable inner core (2), and the buffer force adjusting part (3) can adjust the initial compression degree of the buffer spring (4). The movable inner core (2) comprises an inner core shell (201) with a pen tip core (203) fixedly installed at the front end, a sponge core (202) internally provided with pigments, and the pen tip core (203) inserted into the sponge core (202). The buffer force adjusting part (3) comprises a barrel shell (31) internally provided with a hexagonal groove, a sliding extrusion part (32) arranged in the hexagonal groove, the sliding extrusion part (32) comprising a hexagonal shaft and an end piece, and the hexagonal shaft in sliding connection with the barrel shell (31). One end of the buffer spring (4) abuts against the inner core shell (201), and the other end abuts against the end piece.

2. A watercolor pen according to claim 1, wherein: The barrel shell (31) is externally provided with a shaft barrel (33) with a rotationally connected adjusting rod (34) installed therein, the adjusting rod (34) is externally provided with a screw thread, the adjusting rod (34) passes through the sliding extrusion part (32) and is in threaded connection with the sliding extrusion part (32), and in addition, the adjusting rod (34) is externally fixedly connected with an adjusting wheel (35). The barrel shell (31) is externally fixedly provided with a connecting barrel (36) in threaded connection with the rear end of the pen barrel shell (1).

3. A watercolor brush according to claim 2, wherein: The pen barrel shell (1) and the movable inner core (2) are in sliding connection through a rolling connecting part (5) comprising:

4. A watercolor pen according to claim 2, wherein: The inner core shell (201) is externally provided with a plurality of groups of arrayed spherical grooves; 5. A watercolor pen according to claim 1, wherein: Rolling balls (51) rolling installed in the spherical grooves and externally provided with anti-disengagement cover rings (52); The pen barrel shell (1) is internally provided with strip grooves corresponding to the rolling balls (51). The pen barrel shell (1) is internally provided with a limiting ring (11) fixedly arranged at the front part, and the inner core shell (201) is externally provided with a clamping ring (21) fixedly arranged at the front part and corresponding to the limiting ring (11). The inner core shell (201) is internally provided with a fixed plug (204) fixedly arranged at the front end, the fixed plug (204) is sleeved on the pen tip core (203) and fixedly connected with the pen tip core (203).

6. A watercolor pen according to claim 1, wherein: The inner core shell (201) is internally provided with a plurality of circumferentially arrayed clamping edges (205), and when the sponge core (202) is inserted into the inner core shell (201), the outer wall of the sponge core (202) is in abutment with the clamping edges (205).

7. A watercolor pen according to claim 1, wherein: ​ 8. A watercolor pen according to claim 1, wherein: ​

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