Full-needle-tube elastic pen point

Abstract

The utility model relates to the technical field of full-needle-tube pen points, in particular to a full-needle-tube elastic pen point which comprises a first ink outlet tube, the lower end of the first ink outlet tube is fixedly connected with a second ink outlet tube, a needle tube is inserted in the second ink outlet tube, an ink outlet hole is formed in the needle tube, and the bottom end of the ink outlet hole is slidably connected with a ball. An elastic mechanism is arranged in the needle tube and comprises a supporting rod, a first fixing ring, a second fixing ring, an inserting hole, an inserting groove, a supporting spring, a third fixing ring, an elastic rod, an inserting rod and an inserting block. The elastic mechanism is placed in the needle tube, then the inserting rod is clamped into the inserting hole, the inserting block is clamped into the inserting groove, then the elastic mechanism is fixed in the needle tube, the smoothness of the outer side surface of the needle tube is kept, then the needle tube is inserted into the second ink outlet tube, and the connecting tightness of the needle tube and the second ink outlet tube is improved; and ink leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of full-needle-tube pen tips, in particular to a full-needle-tube elastic pen tip. Background Art

[0002] The full needle pen tip is made of a complete needle tube by non-cutting processing. The front end of the needle tube is punched with a concave point by a precision instrument to form the bowl of the ball, and the needle tube at the back forms the discharge groove. The ink flows out through the discharge groove, and then the ball rolls to bring out the ink, completing the writing process.

[0003] Among them, the announcement number CN216373975U discloses a full needle tube elastic pen head, which relates to the field of water-based pens, and includes a ball and a needle tube. An elastic support member for pressing against the ball is provided in the needle tube, and a mounting member for abutting against one end of the elastic support member away from the ball is provided in the needle tube, and a limiter for detachably connecting the mounting member to the needle tube is provided on the mounting member. When installing the elastic support member, the elastic support member is first placed in the needle tube and pressed against the ball, and then the mounting member is installed in the needle tube through the limiter, so that the side of the mounting member facing the ball contacts the side of the elastic support member away from the ball, which plays a role in supporting the elastic support member, making the process of installing the elastic support member more convenient.

[0004] The device fixes the fixing ring inside the needle tube by clamping the extension column, the elastic arm and the clamping column on the outside of the needle tube. When the needle tube is in use, the needle tube needs to be inserted into the lower end of the ink tube. Since the extension column, the elastic arm and the clamping column are on the outside of the needle tube, it is easy to cause a gap at the connection between the needle tube and the ink tube, which in turn causes ink leakage.

[0005] Therefore, it is necessary to invent a full-needle elastic pen tip to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a full-needle-tube elastic pen tip to solve the problem that, due to the extension column, the elastic arm and the clamping column being outside the needle tube, a gap is easily formed at the connection between the needle tube and the ink tube, thereby causing ink leakage.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a full-needle elastic pen tip, comprising a first ink outlet tube, the lower end of the first ink outlet tube is fixedly connected to the second ink outlet tube, the interior of the second ink outlet tube is plugged with a needle tube, the interior of the needle tube is provided with an ink outlet hole, the bottom end of the ink outlet hole is slidably connected with a ball, the interior of the needle tube is provided with an elastic mechanism, the elastic mechanism comprises a support rod, a first fixing ring, a second fixing ring, a plug-in hole, a plug-in groove, a support spring, a third fixing ring, an elastic rod, a plug-in rod and a plug-in block.

[0008] By adopting the above technical solution, the elastic mechanism is placed inside the needle tube, and then the plug rod is inserted into the inside of the plug hole, and the plug block is inserted into the inside of the plug groove, so as to fix the elastic mechanism inside the needle tube, maintain the smoothness of the outer surface of the needle tube, and improve the tightness of its connection with the ink tube.

[0009] Optionally, the lower end of the support rod is fixedly connected to the surface of the ball, and the upper end of the support rod is fixedly connected to the first fixing ring.

[0010] Optionally, a plurality of groups of connecting rods are fixedly connected to the side surface of the first fixing ring, and one end of the connecting rods away from the first fixing ring is fixedly connected to the inner surface of the second fixing ring.

[0011] By adopting the above technical solution, the first fixing ring cooperates with the second fixing ring to limit the position of the ball.

[0012] Optionally, the lower end of the support spring is fixedly connected to the upper surface of the second fixing ring, and the upper end of the support spring is fixedly connected to the lower surface of the third fixing ring.

[0013] By adopting the above technical solution, the support spring pushes the second fixing ring downward, and then pushes the ball downward, so that it is tightly against the lower end of the side wall of the ink outlet hole.

[0014] Optionally, the lower end of the elastic rod is fixedly connected to the upper surface of the third fixing ring, the surface of the elastic rod close to the outer side is fixedly connected to a plug-in rod, and the upper end of the elastic rod is fixedly connected to a plug-in block.

[0015] Optionally, the plug hole is formed on the inner surface of the needle tube, the plug groove is formed on the upper end of the needle tube, the plug rod is clamped inside the plug hole, and the plug block is clamped inside the plug groove.

[0016] By adopting the above technical solution, the upper end of the elastic rod is squeezed inward to make the elastic rod inclined. At this time, the elastic mechanism is sent into the ink outlet hole. After the elastic rod is released, the elastic rod automatically resets, the plug-in rod is inserted into the plug-in hole, and the plug-in block is inserted into the plug-in slot, thereby fixing the elastic mechanism inside the needle tube.

[0017] Optionally, an abutment hole is provided at one inner end of the plug-in rod, and an elastic sheet is inserted into the abutment hole.

[0018] By adopting the above technical solution, after the elastic rod is fixed inside the needle tube, the two ends of the elastic sheet are inserted into the inside of the abutment hole, and the elastic rod is pushed to both sides so that the elastic rod fits tightly with the side wall of the ink outlet hole, thereby further improving the stability of the elastic mechanism.

[0019] Optionally, a contact plate is fixedly connected to a side surface of the second ink outlet tube.

[0020] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0021] The utility model places an elastic mechanism inside the needle tube, then clips the plug rod into the inside of the plug hole, clips the plug block into the inside of the plug groove, and then fixes the elastic mechanism inside the needle tube, thereby maintaining the smoothness of the outer surface of the needle tube, improving the tightness of the connection between the needle tube and the ink tube, avoiding the occurrence of gaps at the connection between the needle tube and the ink tube, and avoiding ink leakage, and solves the problem of gaps at the connection between the needle tube and the ink tube due to the extension column, the elastic arm and the clip column being on the outside of the needle tube, thereby causing ink leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the needle tube structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the ink outlet structure of the utility model;

[0026] Figure 5 It is a schematic diagram of the elastic mechanism structure of the utility model.

[0027] Description of reference numerals:

[0028] 1. First ink outlet tube; 11. Second ink outlet tube; 12. Abutment plate; 2. Needle tube; 21. Ink outlet hole; 22. Ball; 23. Support rod; 24. First fixing ring; 25. Connecting rod; 26. Second fixing ring; 27. Plug-in hole; 28. Plug-in groove; 3. Support spring; 31. Third fixing ring; 32. Elastic rod; 33. Plug-in rod; 34. Abutment hole; 35. Plug-in block; 36. Elastic sheet. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The utility model provides Figures 1 to 5The shown embodiment is a full-needle elastic pen tip, comprising a first ink outlet tube 1, the lower end of the first ink outlet tube 1 is fixedly connected to the second ink outlet tube 11, the side of the second ink outlet tube 11 is fixedly connected to the abutment plate 12, the interior of the second ink outlet tube 11 is plugged with a needle tube 2, the interior of the needle tube 2 is provided with an ink outlet hole 21, the bottom end of the ink outlet hole 21 is rotatably connected to a ball 22, the interior of the needle tube 2 is provided with an elastic mechanism, the elastic mechanism comprises a support rod 23, a first fixing ring 24, a second fixing ring 26, a plug-in hole 27, a plug-in groove 28, a support spring 3, a third fixing ring 31, an elastic rod 32, a plug-in rod 33 and a plug-in block 35.

[0031] Among them, the elastic mechanism is placed inside the needle tube 2, and then the plug rod 33 is inserted into the inside of the plug hole 27, and the plug block 35 is inserted into the inside of the plug groove 28, so as to fix the elastic mechanism inside the needle tube 2 to maintain the smoothness of the outer surface of the needle tube 2, and then it is plugged into the inside of the second ink outlet tube 11 to improve the tightness of the connection between the needle tube 2 and the second ink outlet tube 11 to avoid ink leakage.

[0032] The lower end of the support rod 23 is fixedly connected to the surface of the ball 22, the upper end of the support rod 23 is fixedly connected to the first fixing ring 24, the side of the first fixing ring 24 is fixedly connected to multiple groups of connecting rods 25, the end of the connecting rod 25 away from the first fixing ring 24 is fixedly connected to the inner surface of the second fixing ring 26, the lower end of the support spring 3 is fixedly connected to the upper surface of the second fixing ring 26, the upper end of the support spring 3 is fixedly connected to the lower surface of the third fixing ring 31, and the lower end of the elastic rod 32 is fixedly connected to the lower surface of the third fixing ring 31. It is fixedly connected to the upper surface of the third fixing ring 31, and the surface of the elastic rod 32 close to the outer side is fixedly connected with the plug-in rod 33. The upper end of the elastic rod 32 is fixedly connected with the plug-in block 35. The plug-in hole 27 is opened on the inner surface of the needle tube 2, and the plug-in groove 28 is opened at the upper end of the needle tube 2. The plug-in rod 33 is stuck in the inside of the plug-in hole 27, and the plug-in block 35 is stuck in the inside of the plug-in groove 28. An abutment hole 34 is opened at one end of the inner side of the plug-in rod 33, and an elastic sheet 36 is inserted into the inside of the abutment hole 34.

[0033] Specifically, first, the two ends of the elastic sheet 36 are clamped inside the abutment holes 34 on both sides, and then the upper ends of the two groups of elastic rods 32 are squeezed inward, thereby squeezing the elastic sheet 36, and then the elastic mechanism is sent from the upper end of the needle tube 2 into the ink outlet hole 21, and then the two groups of elastic rods 32 are loosened, and the elastic rod 32 automatically rebounds to insert the plug rod 33 into the plug hole 27, and the plug block 35 is clamped in the plug groove 28. At the same time, the elastic sheet 36 will also automatically rebound to push the elastic rod 32 to both sides, further improving the stability of the connection between the elastic rod 32 and the side wall of the ink outlet hole 21, thereby improving the overall stability of the elastic mechanism, and fixing the elastic mechanism inside the needle tube 2 to maintain the smoothness of the outer surface of the needle tube 2.

[0034] Working principle of the utility model: in order to facilitate the connection between the needle tube 2 and the ink tube, improve the sealing of the connection, and avoid the problem of ink leakage, an elastic mechanism is placed inside the needle tube 2, and then the plug rod 33 is inserted into the inside of the plug hole 27, and the plug block 35 is inserted into the inside of the plug groove 28, and then the elastic mechanism is fixed inside the needle tube 2, so as to maintain the smoothness of the outer surface of the needle tube 2, and then it is plugged into the inside of the second ink outlet tube 11, so as to improve the tightness of the connection between the needle tube 2 and the second ink outlet tube 11 and avoid ink leakage.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A full-needle elastic pen tip, comprising a first ink outlet tube (1), characterized in that: The lower end of the first ink outlet tube (1) is fixedly connected to the second ink outlet tube (11), the interior of the second ink outlet tube (11) is plugged with a needle tube (2), the interior of the needle tube (2) is provided with an ink outlet hole (21), the bottom end of the ink outlet hole (21) is rotatably connected to a ball (22), and the interior of the needle tube (2) is provided with an elastic mechanism, which comprises a support rod (23), a first fixing ring (24), a second fixing ring (26), a plug hole (27), a plug groove (28), a support spring (3), a third fixing ring (31), an elastic rod (32), a plug rod (33) and a plug block (35).

2. The full-needle elastic pen tip according to claim 1, characterized in that: The lower end of the support rod (23) is fixedly connected to the surface of the ball (22), and the upper end of the support rod (23) is fixedly connected to the first fixing ring (24).

3. The full-needle elastic pen tip according to claim 1, characterized in that: A plurality of groups of connecting rods (25) are fixedly connected to the side surface of the first fixing ring (24), and one end of the connecting rod (25) away from the first fixing ring (24) is fixedly connected to the inner surface of the second fixing ring (26).

4. The full-needle elastic pen tip according to claim 1, characterized in that: The lower end of the support spring (3) is fixedly connected to the upper surface of the second fixing ring (26), and the upper end of the support spring (3) is fixedly connected to the lower surface of the third fixing ring (31).

5. The full-needle elastic pen tip according to claim 1, characterized in that: The lower end of the elastic rod (32) is fixedly connected to the upper surface of the third fixing ring (31), the surface of the elastic rod (32) close to the outside is fixedly connected to a plug-in rod (33), and the upper end of the elastic rod (32) is fixedly connected to a plug-in block (35).

6. The full-needle elastic pen tip according to claim 1, characterized in that: The plug hole (27) is formed on the inner surface of the needle tube (2), the plug groove (28) is formed on the upper end of the needle tube (2), the plug rod (33) is clamped inside the plug hole (27), and the plug block (35) is clamped inside the plug groove (28).

7. The full-needle elastic pen tip according to claim 1, characterized in that: An abutment hole (34) is provided at one inner end of the insertion rod (33), and an elastic sheet (36) is inserted into the interior of the abutment hole (34).

8. The full-needle elastic pen tip according to claim 1, characterized in that: A contact plate (12) is fixedly connected to the side surface of the second ink outlet tube (11).

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