A precise elastic locking mechanism for a fast-changing refill pen

Abstract

The utility model relates to the technical field of signature pens, and specifically to a precise elastic locking mechanism for a signature pen with a quick refill change function, comprising a pen tube, a pen head, a pen cover, a pen refill, a locking device and a guide clamping device, wherein the pen head is fixedly mounted on the bottom end of the pen tube, the pen cover is movably mounted on the end of the pen head, a top cover is movably mounted on the top end of the pen tube, and the pen refill is fixedly mounted on the bottom end of the top cover, and the bidirectional screw is rotatably mounted inside the pen tube, and the bidirectional screw drives the clamping blocks at both ends to move linearly on the bidirectional screw during rotation, and the two groups of clamping blocks move from the two ends to the middle until the side walls of the clamping blocks contact the elastic groove, and the elastic properties of the elastic groove can fill the small gap between the annular tube and the clamping block, reduce the possibility of vibration and sliding, thereby enhancing the stability of the clamping, realizing the installation locking of the pen refill, and realizing rapid automatic locking after the pen is inserted.

Description

Technical Field

[0001] The utility model relates to the technical field of signature pens, in particular to a precise elastic locking mechanism for signature pens capable of quickly replacing cores. Background Art

[0002] As we all know, a signature pen is a pen that is specially used for signing or signing samples. It mainly includes two types: water-based signature pens and oil-based signature pens. Water-based signature pens are generally used on paper, while oil-based signature pens are more often used for signing samples or other occasions that require permanent marking. The marks of oil-based signature pens are difficult to wipe off, but they can be cleaned with alcohol and other items.

[0003] Traditional ballpoint pens usually require complicated operations or tools to replace the refill, which is not only inefficient but also easy to damage the refill or pen body. In addition, traditional locking mechanisms often have problems such as insufficient locking force or poor stability, which affects the user experience of the ballpoint pen. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a precise elastic locking mechanism for a signature pen capable of quickly changing the cartridge.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precise elastic locking mechanism of a fast-refillable signature pen, comprising a pen tube, a pen head, a pen cover, a pen core, a locking device and a guide clamping device, wherein the pen head is fixedly mounted on the bottom end of the pen tube, the pen cover is movably mounted on the end of the pen head, a top cover is movably mounted on the top end of the pen tube, and the pen core is fixedly mounted on the bottom end of the top cover, the locking device comprises a bidirectional screw, a clamping block, a fixing rod, a micro motor and a power supply, the bidirectional screw is rotatably mounted inside the pen tube, and the bidirectional screw is rotatably mounted inside the pen tube. The clamping blocks are rotatably installed on the left and right ends of the screw through bearings, the fixing rod is fixedly installed on the end of the pen tube away from the bidirectional screw, the fixing rod is slidably connected to the end of the clamping block away from the bidirectional screw, an annular tube is fixedly installed in the middle of the pen core, an elastic groove is provided on the side wall of the annular tube, and clamping grooves are provided on the corresponding sides of the two groups of clamping blocks, one end of the bidirectional screw passes through the side wall of the pen tube to install the micro motor, the outer wall of the pen tube is installed with the power supply, and the power supply is electrically connected to the micro motor.

[0008] In order to guide the installation of the top cover, the utility model is improved in that the guiding clamping device includes a clamping block and a clamping slot, the clamping slots are provided on both the left and right sides of the top end of the pen tube, the clamping blocks are installed on both the left and right sides of the bottom wall of the top cover, and the clamping blocks are adapted to the clamping slots.

[0009] In order to facilitate the control of the working state of the micro motor, the utility model is improved in that two groups of switch buttons are installed on the outer wall of the power supply.

[0010] Preferably, the utility model is improved in that the clamping groove is of V-shaped design.

[0011] In order to limit the end of the pen core, the utility model is improved in that a baffle is installed at the top end of the pen head, and a limiting plate is installed at the bottom end of the pen core, and the limiting plate is adapted to the baffle.

[0012] Preferably, the utility model is improved in that the elastic groove is made of rubber material.

[0013] In order to facilitate taking out the pen core, the utility model is improved in that a pull ring is installed on the top end of the top cover.

[0014] In order to improve the anti-slip property of the pull ring, the utility model is improved in that the pull ring is provided with anti-slip grooves.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a precise elastic locking mechanism for a signature pen that can quickly replace the core, which has the following beneficial effects:

[0017] The precise elastic locking mechanism of the fast-refillable signing pen uses a locking device to control a micro motor to drive the bidirectional screw to rotate through a switch button. The two sets of clamping blocks move from both ends to the middle until they contact the elastic groove. The elastic properties of the elastic groove can fill the tiny gap between the annular tube and the clamping block, reducing the possibility of vibration and sliding, thereby enhancing the stability of the clamping, achieving installation locking of the pen core, and being able to achieve rapid automatic locking after the pen core is inserted. Since the locking device can achieve rapid and stable locking, the user does not need to frequently adjust or check the status of the pen core during use, thereby improving the use efficiency.

[0018] The precise elastic locking mechanism of the quick-change refill signing pen uses a guide clamping device. When the refill is inserted into the pen tube, the clamping block is aligned with the clamping slot and inserted, thereby guiding the installation of the refill, so that the refill can be accurately inserted into the predetermined position in the pen tube and remain stable, thereby avoiding the possibility of the refill being offset or loosened during the replacement process, thereby improving the stability and reliability during use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the pen tube and the pen core separated in the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the pen tube of the utility model in a half-section at a first angle;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the pen barrel of the utility model in a half-section at a second angle.

[0023] In the figure: 1. pen barrel; 2. pen tip; 3. pen cap; 4. pen core; 5. top cover; 6. bidirectional screw; 7. clamping block; 8. fixing rod; 9. micro motor; 10. power supply; 11. annular tube; 12. elastic groove; 13. clamping groove; 14. clamping block; 15. clamping groove; 16. baffle; 17. limit plate; 18. switch button; 19. pull ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4A precision elastic locking mechanism for a fast-refillable signature pen comprises a pen tube 1, a pen tip 2, a pen cover 3, a pen core 4, a locking device and a guide clamping device. The pen tip 2 is fixedly mounted on the bottom end of the pen tube 1, the pen tip 2 is movably mounted on the end of the pen tip 2, a top cover 5 is movably mounted on the top end of the pen tube 1, and the pen core 4 is fixedly mounted on the bottom end of the top cover 5. The locking device comprises a bidirectional screw 6, a clamping block 7, a fixing rod 8, a micro motor 9 and a power supply 10. The bidirectional screw 6 is rotatably mounted inside the pen tube 1. The bidirectional screw 6 is The left and right ends of the screw 6 are rotatably mounted with the clamping blocks 7 through bearings, the end of the pen tube 1 away from the bidirectional screw 6 is fixedly mounted with the fixing rod 8, the fixing rod 8 is slidably connected with the end of the clamping block 7 away from the bidirectional screw 6, the middle part of the pen core 4 is fixedly mounted with an annular tube 11, the side wall of the annular tube 11 is provided with an elastic groove 12, the two groups of clamping blocks 7 are provided with clamping grooves 13 on one side, one end of the bidirectional screw 6 penetrates the side wall of the pen tube 1 to be mounted with the micro motor 9, the outer wall of the pen tube 1 is provided with the supply The power supply 10 is electrically connected to the micro motor 9. In this embodiment, when the refill 4 needs to be installed, the top cover 5 is firstly driven to insert the refill 4 into the pen tube 1, and the end of the refill 4 passes through the pen tube 1 into the pen head 2 and protrudes out, and then the switch button 18 is started and pressed to control the forward rotation of the micro motor 9. The output end of the micro motor 9 drives the bidirectional screw 6 to rotate. During the rotation process, the bidirectional screw 6 drives the clamping blocks 7 at both ends to move linearly on the bidirectional screw 6. The two groups of clamping blocks 7 move closer from the two ends to the middle, and the fixing rod 8 and the clamping blocks 7 are fixed to each other. Under the sliding action, the movement of the clamping block 7 is guided to prevent the clamping block 7 from deviating from the movement trajectory until the side wall of the clamping block 7 contacts the elastic groove 12. The elastic properties of the elastic groove 12 can fill the small gap between the annular tube 11 and the clamping block 7, reducing the possibility of vibration and sliding, thereby enhancing the stability of the clamping, realizing the installation locking of the pen core 4, and realizing fast automatic locking after the pen is inserted. When unlocking is required, only another set of switch buttons 18 need to be pressed to make the micro motor 9 drive the bidirectional screw 6 to rotate in the opposite direction to realize unlocking the pen core 4.

[0026] In actual use, the installation of the top cover 5 is further guided. In this embodiment, the guiding clamping device includes a clamping block 14 and a clamping slot 15. The clamping slots 15 are provided on both sides of the top of the pen tube 1, and the clamping blocks 14 are installed on both sides of the bottom wall of the top cover 5. The clamping blocks 14 are adapted to the clamping slots 15. When the refill 4 is inserted into the pen tube 1, the clamping block 14 on the top cover 5 is aligned with the clamping slot 15 at the top of the pen tube 1, so that the clamping block 14 enters the clamping slot 15, and the installation of the refill 4 is guided, which is convenient for locking the refill 4 later.

[0027] In actual use, in order to further facilitate the control of the working state of the micro motor 9 , in this embodiment, two groups of switch buttons 18 are installed on the outer wall of the power supply 10 , and the switch buttons 18 facilitate the control of the working state of the micro motor 9 .

[0028] Preferably, in this embodiment, the clamping groove 13 is of V-shaped design. The V-shaped groove design allows the clamping block 7 to be automatically centered when fixed, ensuring that the refill 4 is accurately positioned at the expected position.

[0029] During actual use, the end of the pen core 4 is further limited. In this embodiment, a baffle 16 is installed at the top of the pen tip 2, and a limiting plate 17 is installed at the bottom of the pen core 4. The limiting plate 17 is adapted to the baffle 16. When the end of the pen core 4 passes through the pen tip 2, the baffle 16 blocks the limiting plate 17, thereby limiting the length of the pen core 4 entering the pen tip 2.

[0030] Preferably, in the present embodiment, the elastic groove 12 is made of rubber material. The elastic groove 12 made of rubber material can provide a better clamping effect, increase the clamping force, ensure the stability and safety when being locked, and avoid slipping or loosening during the locking process.

[0031] In actual use, in order to further facilitate taking out the refill 4 , in this embodiment, a pull ring 19 is installed at the top end of the top cover 5 , and the pull ring 19 facilitates pulling the top cover 5 , thereby further facilitating taking out the refill 4 .

[0032] During actual use, in order to further improve the anti-slip property of the pull ring 19, in the present embodiment, the pull ring 19 is provided with anti-slip grooves, which can increase the roughness of the surface of the pull ring 19, thereby enhancing the friction between the hand and the pull ring 19. This enables the user to hold the pull ring 19 more firmly when operating the pull ring 19, thereby reducing the possibility of operational errors or accidental falling off due to hand slippage.

[0033] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise elastic locking mechanism for a fast-changeable refill signing pen, comprising a pen barrel (1), a pen head (2), a pen cap (3), a refill (4), a locking device and a guide clamping device, characterized in that: The pen tip (2) is fixedly mounted on the bottom end of the pen tube (1), the pen cap (3) is movably mounted on the end of the pen tip (2), a top cover (5) is movably mounted on the top end of the pen tube (1), the pen core (4) is fixedly mounted on the bottom end of the top cover (5), the locking device comprises a bidirectional screw (6), a clamping block (7), a fixing rod (8), a micro motor (9) and a power supply (10), the bidirectional screw (6) is rotatably mounted inside the pen tube (1), the clamping block (7) is rotatably mounted on the left and right ends of the bidirectional screw (6) via bearings, and the inside of the pen tube (1) is away from the bidirectional screw. The fixing rod (8) is fixedly installed at one end of the pen tube (6), and the fixing rod (8) is slidably connected to the end of the clamping block (7) away from the bidirectional screw (6). An annular tube (11) is fixedly installed in the middle of the pen core (4), and an elastic groove (12) is provided on the side wall of the annular tube (11). The two groups of clamping blocks (7) are provided with clamping grooves (13) on the corresponding sides. One end of the bidirectional screw (6) passes through the side wall of the pen tube (1) and is installed with the micro motor (9). The outer wall of the pen tube (1) is installed with the power supply (10), and the power supply (10) is electrically connected to the micro motor (9).

2. According to claim 1, the precise elastic locking mechanism of a fast-changeable refill signing pen is characterized in that: The guide clamping device comprises a clamping block (14) and a clamping slot (15); the clamping slots (15) are provided on both left and right sides of the top end of the pen tube (1); the clamping blocks (14) are installed on both left and right sides of the bottom wall of the top cover (5); and the clamping blocks (14) are adapted to fit the clamping slots (15).

3. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 2, characterized in that: Two groups of switch buttons (18) are installed on the outer wall of the power supply (10).

4. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 3, characterized in that: The clamping groove (13) is of V-shaped design.

5. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 4, characterized in that: A baffle (16) is installed at the top end of the pen tip (2), and a limit plate (17) is installed at the bottom end of the pen core (4), and the limit plate (17) is adapted to fit the baffle (16).

6. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 5, characterized in that: The elastic groove (12) is made of rubber material.

7. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 6, characterized in that: A pull ring (19) is installed on the top end of the top cover (5).

8. The precise elastic locking mechanism of a fast-changeable refill signing pen according to claim 7, characterized in that: The pull ring (19) is provided with anti-slip grooves.

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