Refill rotating device

Abstract

The utility model belongs to the technical field of writing pens, and particularly relates to a pen refill rotating device which comprises a pen refill, a pen refill sleeve is sleeved outside the pen refill, a pen tube is sleeved outside the pen refill sleeve, the lower end of the pen refill sleeve is connected with a pen point, a pen cap is arranged at the top of the pen refill sleeve, and the pen cap is further located at the top of the pen tube. A movable sliding column is arranged at the upper end of the interior of the refill sleeve and the upper end of the interior of the pen tube; an L-shaped rotating bayonet is formed in the upper end of the refill sleeve, and a positioning ring is fixed to the lower end of the refill sleeve; a spiral groove is formed in the upper end of the inner side of the pen tube, and a positioning groove is formed in the lower end of the inner side of the pen tube. A sliding rod is fixed to the sliding column in the radial direction. By means of rotation between the pen tube and the pen refill sleeve and under the action of the sliding column and the positioning groove, the pen refill stretches out and draws back, traditional axial pressing drive is changed into circumferential rotation drive, the pen tube is matched with the pen refill sleeve to achieve stretching out and drawing back of the pen refill, meanwhile, the pen tube serves as a support of a handheld part of the writing pen, the dual functions are achieved, and the structural compactness is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of writing pens, and in particular relates to a pen core rotating device. Background Art

[0002] A writing pen is a common stationery used for writing or drawing on paper or other media. According to different classification standards, writing pens can be divided into many types; classified by structure and scope of use, common writing pens include fountain pens, ballpoint pens, pencils, mechanical pencils and markers. Fountain pens, such as fountain pens, use ink to write through the capillary principle. Ballpoint pens use the rolling ball to bring out the writing liquid. Pencils are equipped with fixed lead cores that can be used for writing or drawing. Mechanical pencils can clamp and output lead cores for easy replacement. Marking pens are used to mark or mark on a variety of materials;

[0003] Among them, ballpoint pens and gel pens are all protected by telescopic or pen caps. The pen caps are easy to lose and are less convenient to use than telescopic ones. The telescopic structure is generally controlled by axial pressing. The pressing head moves back and forth according to the pressing. The pressing head is located outside the writing pen. First, it is easy to cause damage to the pressing head part when it is bumped or dropped. Secondly, it affects the appearance. In addition, the traditional pressing structure is prone to jamming, which is not conducive to use.

[0004] In order to solve the above problems, a pen core rotating device is proposed in the present application. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a pen core rotating device, which has the characteristics of high compactness, simplicity and reliability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pen core rotating device, comprising a pen core, a pen core cover is provided on the outside of the pen core, a pen tube is provided on the outside of the pen core cover, a pen head is connected to the lower end of the pen core cover, a pen cap is provided on the top of the pen core cover, and the pen cap is also located on the top of the pen tube, and a movable sliding column is provided on the inner upper ends of the pen core cover and the pen tube; an L-shaped rotating bayonet is provided on the upper end of the pen core cover, and a positioning ring is fixed on the lower end of the pen core cover; a spiral groove is provided on the inner upper end of the pen tube, and a positioning groove is provided on the inner lower end of the pen tube; a sliding rod is radially fixed on the sliding column.

[0007] As a preferred technical solution of the utility model, the lower end of the pen core also penetrates the pen head, and a spring is provided between the pen core and the pen head to drive the pen core to return to the inside of the pen head.

[0008] As a preferred technical solution of the utility model, a ring groove is provided on the outer side of the upper end of the pen tip and plugged into the positioning groove. The positioning ring is plugged into the positioning groove, and a matching thread pair is provided on the outer side of the bottom of the pen core sleeve and the top of the inner side of the pen tip.

[0009] As a preferred technical solution of the utility model, a matching thread pair is provided between the inside of the pen cap and the upper end of the outside of the refill sleeve.

[0010] As a preferred technical solution of the utility model, an annular groove for the rotation of the pen tube is formed between the pen core sleeve, the pen head and the pen cap, and the pen tube rotates in the annular groove.

[0011] As a preferred technical solution of the utility model, a through hole for sliding of the slide column is provided in the refill sleeve, and the slide rod on the slide column also slides in the spiral groove and the rotating bayonet at the same time.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the extension and retraction of the pen core is achieved through the rotation between the pen tube and the pen core cover and under the action of the sliding column and the positioning groove, and the traditional axial pressing drive is changed to a circumferential rotation drive. The pen tube and the pen core cover can cooperate to achieve the extension and retraction of the pen core. At the same time, the pen tube also serves as a support for the handheld part of the writing pen, playing a dual role and having a highly compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model in a half-section view from the front;

[0016] Figure 3 It is a structural schematic diagram of the pen core and the spring in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the refill sleeve in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the pen tube in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the pen head in the utility model;

[0020] Figure 7 It is a structural schematic diagram of the pen cap in the utility model;

[0021] Figure 8This is a schematic diagram of the structure of the sliding column in the utility model;

[0022] In the figure: 1, refill; 2, refill cover; 21, rotating bayonet; 22, positioning ring; 3, pen tube; 31, spiral groove; 32, positioning groove; 4, pen tip; 5, pen cap; 6, slide column; 61, slide rod; 7, spring. DETAILED DESCRIPTION

[0023] 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. Example

[0024] See also Figure 1-8 The utility model provides the following technical solutions: a refill rotating device comprises a refill 1, a refill sleeve 2 is sleeved outside the refill 1, a pen tube 3 is sleeved outside the refill sleeve 2, a pen head 4 is connected to the lower end of the refill sleeve 2, a pen cap 5 is arranged on the top of the refill sleeve 2, and the pen cap 5 is also located on the top of the pen tube 3, and a movable slide column 6 is arranged on the inner upper end of the refill sleeve 2 and the pen tube 3; an L-shaped rotating bayonet 21 is provided on the upper end of the refill sleeve 2, and a positioning ring 22 is fixed on the lower end of the refill sleeve 2; a spiral groove 31 is provided on the inner upper end of the pen tube 3, and a positioning groove 32 is provided on the inner lower end of the pen tube 3; a slide rod 61 is radially fixed on the slide column 6.

[0025] Specifically, the lower end of the refill 1 also passes through the nib 4, and a spring 7 is provided between the refill 1 and the nib 4 to drive the refill 1 to return to the inside of the nib 4. In this embodiment, the diameter of the spring 7 is smaller than the core body of the refill 1 and larger than the core head of the refill 1.

[0026] Specifically, an annular groove that is plugged into the positioning groove 32 is opened on the outer side of the upper end of the pen tip 4, the positioning ring 22 is plugged into the positioning groove 32, and a matching thread pair is provided on the outer side of the bottom of the refill sleeve 2 and the top of the inner side of the pen tip 4. In this embodiment, the plugging of the annular groove on the outside of the pen tip 4 and the positioning groove 32 serves to strengthen the reliability of the connection between the pen tube 3 and the pen tip 4, thereby ensuring the structural reliability of the writing pen.

[0027] Specifically, a matching thread pair is provided between the inside of the pen cap 5 and the upper end of the outside of the refill sleeve 2. The thread structure between the refill sleeve 2 and the pen cap 5 in this embodiment serves to limit the axial position of the pen tube 3 and facilitates assembly and disassembly.

[0028] Specifically, an annular groove for rotating the pen tube 3 is formed between the refill sleeve 2, the pen head 4 and the pen cap 5. The pen tube 3 rotates in the annular groove. The annular groove in this embodiment limits the axial and radial movements of the pen tube 3 to ensure the structural fit. At the same time, it can serve as a support for the writing pen grip while driving the refill 1 to extend and retract, thereby achieving a dual effect.

[0029] Specifically, a through hole for the sliding of the slide post 6 is opened in the refill sleeve 2, and the slide rod 61 on the slide post 6 also slides in the spiral groove 31 and the rotating bayonet 21 at the same time. In this embodiment, the slide rod 61 slides in the spiral groove 31 to provide axial movement force, and the slide rod 61 cooperates with the vertical part in the rotating bayonet 21 to guide the axial movement of the slide post 6, preventing the slide post 6 from rotating to ensure reliability. After the slide rod 61 enters the horizontal part of the rotating bayonet 21, it plays a locking role after the refill 1 is extended, ensuring the structural stability of the refill 1 during writing.

[0030] The working principle and use process of this utility model:

[0031] Extension of the refill 1: Hold the pen tip 4 and the pen tube 3 at the same time and rotate them. The pen tube 3 rotates outside the pen tip 4 and the refill sleeve 2. During the rotation, the slide bar 61 is forced to slide in the spiral groove 31. The axial force generated by the rotation of the spiral groove 31 and the slide bar 61 drives the slide column 6 to move downward. The slide column 6 slides downward along the upper end of the refill sleeve 2. During the downward sliding of the slide column 6, the refill 1 is squeezed. The front end of the refill 1 extends out from the inside of the pen tip 4. The spring 7 is compressed accordingly. The pen tube 3 continues to rotate until the slide bar 61 enters the lateral part at the bottom of the rotating bayonet 21, and the refill 1 is locked.

[0032] Retraction of the refill sleeve 2: The pen tube 3 is rotated in opposite directions outside the pen tube 3 and the refill sleeve 2, and the axial force generated by the spiral groove 31 and the spiral of the slide rod 61 drives the slide post 6 to move upward. At this time, the refill 1 moves upward under the action of the spring 7, and the front end of the refill 1 enters the pen head 4, and the refill 1 is retracted;

[0033] Replacing the refill 1: Hold the pen tube 3 and the pen cap 5 at the same time, then rotate the pen head 4, the spiral between the refill sleeve 2 and the pen head 4 is unscrewed, remove the exhausted refill 1 and replace it, and then reinstall the refill sleeve 2 and the pen head 4 through the thread.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A refill rotating device, comprising a refill (1), characterized in that: The refill (1) is covered with a refill sleeve (2) on the outside, and a pen tube (3) is covered with a refill sleeve (2) on the outside. The lower end of the refill sleeve (2) is connected to a pen head (4). The top of the refill sleeve (2) is provided with a pen cap (5), and the pen cap (5) is also located on the top of the pen tube (3). A movable slide column (6) is provided at the inner upper ends of the refill sleeve (2) and the pen tube (3); an L-shaped rotating bayonet (21) is provided at the upper end of the refill sleeve (2), and a positioning ring (22) is fixed at the lower end of the refill sleeve (2); a spiral groove (31) is provided at the inner upper end of the pen tube (3), and a positioning groove (32) is provided at the inner lower end of the pen tube (3); and a slide rod (61) is radially fixed on the slide column (6).

2. A pen core rotating device according to claim 1, characterized in that: The lower end of the pen core (1) also penetrates the pen head (4), and a spring (7) is provided between the pen core (1) and the pen head (4) for driving the pen core (1) to return to the inside of the pen head (4).

3. A pen core rotating device according to claim 1, characterized in that: The outer side of the upper end of the pen head (4) is provided with a ring groove which is plugged into the positioning groove (32); the positioning ring (22) is plugged into and matched with the positioning groove (32); and the outer side of the bottom of the pen core sleeve (2) and the top of the inner side of the pen head (4) are provided with a matching thread pair.

4. A pen core rotating device according to claim 1, characterized in that: A matching thread pair is provided between the interior of the pen cap (5) and the upper end of the exterior of the refill sleeve (2).

5. A pen core rotating device according to claim 1, characterized in that: An annular groove for the pen tube (3) to rotate is formed between the pen core sleeve (2), the pen head (4) and the pen cap (5), and the pen tube (3) rotates in the annular groove.

6. A pen core rotating device according to claim 1, characterized in that: A through hole for the sliding column (6) is provided in the pen core sleeve (2), and the sliding rod (61) on the sliding column (6) also slides in the spiral groove (31) and the rotating bayonet (21) at the same time.

Images