Multi-section asymmetric thread rotating structure of ball-point pen

Abstract

The utility model relates to the technical field of ball-point pen accessory devices, in particular to a multi-section asymmetrical thread rotating structure of a ball-point pen, and the ball-point pen with different sizes of refills can be replaced through the multi-section asymmetrical thread rotating structure, so that the ball-point pen is convenient for people to use. Therefore, the multi-section asymmetric thread rotating structure of the ball-point pen is enhanced in practicability. Comprising a pen tube, a pen cap, a clamping ring and a lifting threaded rod, a pen cavity is formed in the pen tube, a threaded sleeve is arranged at the top end of a pen point, third threads are arranged on the inner wall of the bottom of the pen tube and are in threaded connection with the threaded sleeve, a refill is arranged in the pen cavity, a telescopic assembly is arranged at the top end of the refill, and the bottom end of the pen cap is connected with the clamping ring. The clamping ring is clamped to the inner wall of the top of the pen tube, a first thread is arranged on the inner wall of the pen cap, a second thread is arranged on the outer wall of the lifting threaded rod, and the first thread is in threaded connection with the second thread.

Description

Technical Field

[0001] The utility model relates to the technical field of ballpoint pen accessory devices, in particular to a multi-section asymmetric thread rotation structure of a ballpoint pen. Background Art

[0002] As we all know, ballpoint pens are commonly used school supplies, but most of the common ballpoint pens on the market are disposable. After the paint in the refill is used up, the entire ballpoint pen can no longer be used, resulting in a great waste; although some refills can be replaced, they are often very inconvenient to use because the length of the refill is not suitable, thus poor practicality. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a ballpoint pen with a multi-section asymmetric thread rotation structure for replacing refills of different sizes, thereby facilitating people's use and thus enhancing the practicality of the ballpoint pen with a multi-section asymmetric thread rotation structure.

[0004] The utility model discloses a multi-section asymmetric thread rotation structure of a ballpoint pen, comprising a pen tube, a pen cap, a clamping ring and a lifting threaded rod, wherein a pen cavity is arranged inside the pen tube, a threaded sleeve is arranged at the top of the pen head, a third thread is arranged on the inner wall of the bottom of the pen tube, the third thread is threadedly connected with the threaded sleeve, a pen core is arranged in the pen cavity, a telescopic component is arranged on the top of the pen core, the bottom end of the pen cap is connected with the clamping ring, the clamping ring is clamped with the top inner wall of the pen tube, a first thread is arranged on the inner wall of the pen cap, a second thread is arranged on the outer wall of the lifting threaded rod, and the first thread is threadedly connected with the second thread.

[0005] Preferably, a rotating wheel is provided at the top end of the lifting threaded rod.

[0006] Preferably, the telescopic assembly includes a button tooth column, a slide rod, a sliding tooth column, a clamping block, a clamping tooth column and four groups of first limit blocks. The top of the button tooth column is connected to the slide rod, and the bottom end of the lifting threaded rod is provided with a through hole, which is slidably mounted on the slide rod. Four groups of through slide grooves are provided on the outer wall of the button tooth column, and the inner end of the button tooth column is slidably mounted on the sliding tooth column. The outer wall of the sliding tooth column is respectively connected to the clamping block, and the four groups of through slide grooves are respectively slidably mounted on the clamping block. The top of the clamping tooth column is connected to the four groups of first limit blocks, and the four groups of first limit blocks are respectively meshed with the tooth surfaces of the button tooth column and the sliding tooth column. The bottom end of the clamping tooth column is provided with a fixing hole, which is slidably mounted on the pen core. Two groups of second limit blocks are provided on the bottom outer wall of the pen core, and a spring is provided on the outer wall of the pen core.

[0007] Preferably, the pen cap is also included, a limiting sliding hole is arranged on the top of the through hole, the limiting sliding hole and the pen cap are slidably mounted, and the bottom inner wall of the pen cap is slidably mounted on the sliding rod.

[0008] Preferably, it also includes a pen holder, the left end of the pen cover and the pen holder.

[0009] Preferably, the button tooth column, the sliding tooth column and the clamping tooth column are all made of polycarbonate.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when the refill of the ballpoint pen needs to be replaced, the pen head is unscrewed, and then the spring sleeve is put on the refill that needs to be replaced, and then the refill is put into the pen tube, and then the pen head and the pen tube are reinstalled, and then the lifting threaded sleeve is rotated to drive the telescopic component to move downward, so as to fix refills of different sizes, and then the ballpoint pen can be used, which is convenient for people to use and thus enhances practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the connection structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the connection structure between the clamping ring and the fixed cover of the utility model;

[0013] Figure 3 This is a schematic diagram of the button tooth column structure of the utility model;

[0014] Figure 4 It is a schematic diagram of the enlarged structure of the A part of the utility model;

[0015] Markings in the attached figure: 1, pen barrel; 2, pen core; 3, pen cap; 4, clamping ring; 5, lifting threaded rod; 6, rotating wheel; 7, button gear column; 8, sliding rod; 9, sliding gear column; 10, clamping block; 11, clamping gear column; 12, first limit block; 13, spring; 14, pen cap; 15, pen rest; 16, threaded sleeve; 17, pen tip; 18, second limit block; 30, pen cavity. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] like Figures 1 to 4As shown, a multi-stage asymmetric thread rotation structure of a ballpoint pen of the utility model comprises a pen tube 1, a pen cap 3, a clamping ring 4 and a lifting threaded rod 5, wherein a pen cavity 30 is arranged inside the pen tube 1, a threaded sleeve 16 is arranged at the top of a pen head 17, a third thread is arranged on the bottom inner wall of the pen tube 1, the third thread is threadedly connected with the threaded sleeve 16, a pen core 2 is arranged inside the pen cavity 30, a telescopic component is arranged on the top of the pen core 2, the bottom end of the pen cap 3 is connected with the clamping ring 4, the clamping ring 4 is clamped with the top inner wall of the pen tube 1, and the inner wall of the pen cap 3 is provided with a third thread. A first thread is provided on the wall, and a second thread is provided on the outer wall of the lifting threaded rod 5, and the first thread is threadedly connected with the second thread; when the refill of the ballpoint pen needs to be replaced, the pen head is unscrewed, and then the spring sleeve is put on the refill to be replaced, and then the refill is put into the pen tube, and then the pen head and the pen tube are reinstalled, and then the lifting threaded sleeve is rotated to drive the telescopic component to move downward, so as to fix refills of different sizes, and then the ballpoint pen can be used, which is convenient for people to use and thus enhances practicality.

[0018] As a preferred embodiment of the above, the top of the lifting threaded rod 5 is provided with a rotating wheel 6. As a preferred embodiment of the above, the telescopic assembly includes a button tooth column 7, a slide bar 8, a sliding tooth column 9, a clamping block 10, a clamping tooth column 11 and four groups of first limit blocks 12. The top of the button tooth column 7 is connected to the slide bar 8. The bottom end of the lifting threaded rod 5 is provided with a through hole, which is slidably fitted with the slide bar 8. The outer wall of the button tooth column 7 is provided with four groups of through sliding grooves. The inner end of the button tooth column 7 is slidably fitted with the sliding tooth column 9. The outer wall of the sliding tooth column 9 is respectively connected to the clamping block 10. The four groups of through sliding grooves are respectively slidably fitted with the clamping block 10. The top of the clamping tooth column 11 is connected to the four groups of first limit blocks 12. The four groups of first The limit block 12 is meshed with the tooth surfaces of the button tooth column 7 and the sliding tooth column 9 respectively. The bottom end of the card-mounted tooth column 11 is provided with a fixing hole, and the fixing hole is slidably fitted with the pen core 2. Two groups of second limit blocks 18 are provided on the bottom outer wall of the pen core 2, and a spring 13 is provided on the outer wall of the pen core 2. After the pen core is installed, the three groups of tooth columns are driven to move downward by sliding the slide bar downward, thereby driving the sliding tooth column and the card-mounted tooth column to move downward, and driven by the spring to rotate along the oblique teeth on the button tooth column, and the card-mounted tooth column is carded on the oblique teeth on the button tooth column, and then the ballpoint pen can be used, thereby enhancing practicality.

[0019] As a preferred embodiment of the above embodiment, a pen cap 14 is further included, and a limiting sliding hole is set on the top of the through hole. The limiting sliding hole and the pen cap 14 are slidably fitted, and the bottom inner wall of the pen cap 14 is slidably engaged with the sliding rod 8; the sliding rod can be conveniently moved downward through the pen cap, and the pen cap can be limited by the limiting sliding hole, thereby enhancing practicality.

[0020] As a preferred embodiment of the above, a pen holder 15 is further included. The left end of the pen cover 3 is connected to the pen holder 15. The cylindrical pen can be mounted on clothes or a cassette through the pen holder, thereby enhancing practicality.

[0021] As a preferred embodiment of the above embodiment, the button tooth column 7, the sliding tooth column 9 and the clamping tooth column 11 are all made of polycarbonate; polycarbonate has high strength and heat resistance, excellent insulation performance and easy processability, thereby enhancing practicality.

[0022] The utility model discloses a multi-section asymmetric thread rotation structure of a ballpoint pen, and its working principle is as follows: when the pen core of the ballpoint pen needs to be replaced, the pen head is unscrewed, and then a spring sleeve is put on the pen core that needs to be replaced, and then the pen core is put into the pen tube, and then the pen head and the pen tube are reinstalled, and then the telescopic component is driven to move downward by rotating the lifting thread sleeve, so as to fix the pen cores of different sizes, and then after the pen core is installed, the pen cap and the slide rod are slid downward to drive three groups of tooth columns to move downward, so as to drive the sliding tooth column and the card-mounted tooth column to move downward, and the spring drives them to rotate along the oblique teeth on the button tooth column, and the card-mounted tooth column is card-mounted on the oblique teeth on the button tooth column, and then the ballpoint pen can be used, and when the ballpoint pen is used, it can be card-mounted on clothes or a cassette through the pen holder.

[0023] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0024] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-stage asymmetric thread rotation structure of a ballpoint pen, characterized in that: The invention comprises a pen tube (1), a pen cap (3), a clamping ring (4) and a lifting threaded rod (5); a pen cavity (30) is arranged inside the pen tube (1); a threaded sleeve (16) is arranged at the top of a pen head (17); a third thread is arranged on the inner wall of the bottom of the pen tube (1); the third thread is threadedly connected to the threaded sleeve (16); a pen core (2) is arranged inside the pen cavity (30); a telescopic component is arranged at the top of the pen core (2); the bottom end of the pen cap (3) is connected to the clamping ring (4); the clamping ring (4) is clamped to the inner wall of the top of the pen tube (1); a first thread is arranged on the inner wall of the pen cap (3); a second thread is arranged on the outer wall of the lifting threaded rod (5); the first thread is threadedly connected to the second thread.

2. A multi-stage asymmetric thread rotation structure of a ballpoint pen as claimed in claim 1, characterized in that: A rotating wheel (6) is provided at the top end of the lifting threaded rod (5).

3. A multi-stage asymmetric thread rotation structure of a ballpoint pen as claimed in claim 2, characterized in that: The telescopic assembly comprises a button tooth column (7), a slide rod (8), a sliding tooth column (9), a clamping block (10), a clamping tooth column (11) and four groups of first limit blocks (12). The top end of the button tooth column (7) is connected to the slide rod (8). The bottom end of the lifting threaded rod (5) is provided with a through hole, which is slidably mounted on the slide rod (8). The outer wall of the button tooth column (7) is provided with four groups of through sliding grooves. The inner end of the button tooth column (7) is slidably mounted on the sliding tooth column (9). The outer wall of the sliding tooth column (9) is respectively connected to the clamping tooth column (11). The four groups of through-slots are respectively slidably mounted on the card-mounted block (10); the top of the card-mounted tooth column (11) is connected to the four groups of first limit blocks (12); the four groups of first limit blocks (12) are respectively meshed with the tooth surfaces of the button tooth column (7) and the sliding tooth column (9); the bottom end of the card-mounted tooth column (11) is provided with a fixing hole, the fixing hole is slidably mounted on the pen core (2); two groups of second limit blocks (18) are provided on the bottom outer wall of the pen core (2); and a spring (13) is provided on the outer wall of the pen core (2).

4. A multi-stage asymmetric thread rotation structure of a ballpoint pen as claimed in claim 3, characterized in that: It also includes a pen cap (14), a limiting sliding hole is arranged at the top of the through hole, the limiting sliding hole and the pen cap (14) are slidably mounted, and the bottom inner wall of the pen cap (14) is slidably mounted with the slide rod (8).

5. A multi-stage asymmetric thread rotation structure of a ballpoint pen as claimed in claim 4, characterized in that: The utility model also comprises a pen holder (15), the left end of the pen cover (3) and the pen holder (15).

6. A multi-stage asymmetric thread rotation structure of a ballpoint pen as claimed in claim 5, characterized in that: The button tooth column (7), the sliding tooth column (9) and the clamping tooth column (11) are all made of polycarbonate.

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