Writing tool
Through the design of threaded inner and outer rod structures, the problems of complex and insufficient center of gravity adjustment of existing writing tools are solved, accurate and extensive center of gravity adjustment and simplified operation are achieved, and adaptability and stability are enhanced.
Patent Information
- Application Number
- CN202420697800.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The existing writing tools are complicated when adjusting the center of gravity, and their fineness and range are limited, and the counterweight blocks are easily lost and inconvenient to operate.
The threaded inner rod and outer rod structure is adopted. By screwing the outer rod, the counterweight block is driven to move the axial direction of the threaded inner rod to achieve accurate adjustment of the center of gravity. The counterweight block is radially connected to the outer rod, and vertical grooves and protruding edges are used. The structure enhances synchronous rotation stability and improves adjustment accuracy through transparent outer rods.
It achieves the accuracy and adaptability of center of gravity adjustment, is easy to operate, the counterweight can be fixed at any position, and the adjustment range is wide, avoiding disassembly and alternately operating, and enhancing stability and applicability.
Smart Images
Figure CN222179075U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of writing tools, and in particular to a writing tool whose center of gravity can be adjusted as needed. Background Art
[0002] A pen is a frequently used writing instrument. Different users hold the pen with a different center of gravity. In order to adapt to different users and ensure stability and smoothness of writing, the prior art has developed writing instruments with adjustable center of gravity. However, the currently disclosed technologies mostly provide a plurality of counterweights in the pen, with the counterweights having different masses. When adjustment is required, the counterweights are taken out and the upper and lower positions are exchanged to adjust the center of gravity. This adjustment process is complicated and the counterweights are easy to lose. In addition, since the counterweights have a specific volume and weight, although the center of gravity can be adjusted by adding or subtracting and alternating positions, the fineness and range of the adjustment are still limited. Utility Model Content
[0003] In view of the above-mentioned deficiencies in the prior art, the present application provides a writing tool that does not require disassembly and position alternation and has a more precise center of gravity adjustment.
[0004] In order to solve the above technical problems, the technical solution adopted in the present application is: a writing tool, the structure of which includes a pen barrel, a threaded inner rod is provided on the pen barrel, a counterweight is provided on the threaded inner rod, an outer rod is sleeved on the outer side of the threaded inner rod, and the outer rod can rotate circumferentially relative to the threaded inner rod, and the circumferential rotation process drives the counterweight to rotate synchronously, so that the counterweight moves axially along the threaded inner rod.
[0005] The above structure is adopted, by arranging a threaded inner rod on the pen holder, a counterweight block is threadedly connected to the threaded inner rod, and an outer rod is sleeved on the outside of the threaded inner rod; when the outer rod is screwed, the outer rod can drive the counterweight block to rotate along the threaded inner rod, and can move back and forth relative to the axial direction of the threaded inner rod during the rotation process, thereby realizing the adjustment of different positions of the counterweight block; this structure does not require the counterweight block to be disassembled, alternately positioned, etc., and the position of the counterweight block can be adjusted by simply screwing the outer rod, which is more convenient to operate, and the counterweight block can be fixed at any position along the length direction of the threaded inner rod, so that the center of gravity of the writing tool can be adjusted more accurately, the adjustable range is wide, and the adaptability is stronger.
[0006] Furthermore, the outer rod is radially connected to the counterweight, that is, the two are radially connected to each other, so that when the outer rod is rotated, the counterweight can be synchronously driven to rotate circumferentially, and then move up and down along the thread on the threaded inner rod to achieve adjustment of different positions of the counterweight.
[0007] Furthermore, the outer rod is radially connected to the counterweight block, and specifically, a vertical groove is axially arranged on the outer wall of the counterweight block, and a vertical ridge is correspondingly arranged on the inner wall of the outer rod, and the vertical ridge is sleeved in the vertical groove; with this structure, when the outer rod is rotated, the counterweight block can be driven to rotate circumferentially at the same time, so as to adjust the position of the counterweight block, and the synchronous rotation of the two is more stable.
[0008] Furthermore, there are four vertical grooves, which are evenly distributed along the circumference of the outer wall of the counterweight block; with this structure, multiple connections with the inner rod are achieved, making the driving process smoother.
[0009] Furthermore, the outer rod is a transparent or translucent outer rod; this transparent or translucent setting allows the position of the internal counterweight block to be observed through the outer rod, which is more conducive to the user's precise adjustment and improves the adaptability of the center of gravity.
[0010] Furthermore, the front end of the pen barrel includes a nib cover, and the threaded inner rod and the nib cover are threadedly connected or interference fit; when it is a threaded connection, it is easy to disassemble, so that the counterweight block or the nib cover can be replaced here as needed, and the core can be replaced; when it is an interference fit, the axial positioning firmness of the outer rod is improved, and the stability of the counterweight block adjustment process is maintained.
[0011] Furthermore, the threaded inner rod extends axially along one end of the pen barrel, and the extended end is connected to the nib cover. With this structure, a section of threaded inner rod can be directly and integrally arranged on the pen barrel, and the nib cover is directly connected to the end of the threaded inner rod. In this way, the outer rod can be axially fixed on the outside of the section of threaded inner rod between the pen barrel and the nib cover, and the rotation process can be better linked with the counterweight block.
[0012] Furthermore, a first limiting portion is provided between the threaded inner rod and the pen shaft, and a second limiting portion is provided at one end of the pen tip cover close to the counterweight, and the outer diameters of the first limiting portion and the second limiting portion are larger than the outer diameter of the counterweight; with this structure, the rising and falling positions of the counterweight can be limited to avoid difficulty in resetting; in addition, the outer rod is sleeved on the outer walls of the two limiting portions to provide certain support to the outer rod, thereby facilitating stable circumferential rotation of the outer rod.
[0013] Furthermore, a pen clip is provided at the other end of the pen barrel opposite to the nib cover, and the pen clip is threadedly connected to the pen barrel; with this structure, when the core needs to be replaced, the pen clip can be removed by screwing from here to carry out the core replacement operation; and since a threaded connection is adopted here, when there is an interference fit between the nib cover and the threaded inner rod, it is also convenient to replace the core from here. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of the structure of the writing tool of this application.
[0015] Figure 2 A schematic structural diagram of a cross-sectional view of the writing tool of the present application.
[0016] Figure 3 A structural diagram of the assembly diagram of the writing tool of the present application.
[0017] Figure 4 Schematic diagram of the structure of the writing tool of the present application after removing the outer rod.
[0018] Figure 5 A schematic diagram of the structure of the pen tip cover of the present application.
[0019] Figure 6 A schematic structural diagram of a cross-sectional view of the pen tip cover of the present application.
[0020] Figure 7 Schematic diagram of the structure of the outer rod of this application.
[0021] Figure 8 A schematic structural diagram of the cross-sectional view of the outer rod of this application.
[0022] Fig. 9 Schematic diagram of the structure of the pen holder of the present application.
[0023] Fig.10 Schematic diagram of the structure of the counterweight block of this application.
[0024] Fig.11 A schematic diagram of the structure of the pen clip of this application.
[0025] As shown in the accompanying drawings: 1. Pen body, 101. First limiting part, 2. Threaded inner rod, 3. Counterweight, 301. Vertical groove, 4. Outer rod, 401. Vertical ridge, 5. Pen tip cover, 501. Second limiting part, 6. Pen clip, 7. Pen core. DETAILED DESCRIPTION
[0026] The following will combine the embodiments and drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only preferred embodiments, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention;
[0027] It should also be noted that: when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component, fixed through the intermediate component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only; the front and rear ends of this application are the front end when the pen tip is extended in the use state, and the rear end where the pressing part is located. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0028] As attached Figure 1-11 As shown, a writing tool of the present application, the structure of the tool includes a pen body 1, a threaded inner rod 2 is provided on the pen body 1, a counterweight 3 is provided on the threaded inner rod 2 (an internal thread is provided inside the counterweight and is threadedly connected with an external thread on the threaded inner rod), an outer rod 4 is sleeved on the outer side of the threaded inner rod 2, the outer rod 4 can rotate circumferentially relative to the threaded inner rod 2 (only circumferential relative rotation, no axial movement), and the circumferential rotation process drives the counterweight 3 to rotate synchronously, so that the counterweight 3 moves axially along the threaded inner rod 2; that is, when the outer rod is screwed in one direction in the circumferential direction, the counterweight is synchronously driven to rise along the threaded inner rod, and when it is screwed in the opposite direction, the counterweight can be synchronously driven to descend along the threaded inner rod, thereby realizing the adjustment of different positions of the counterweight.
[0029] The above structure is adopted, by arranging a threaded inner rod on the pen barrel, a counterweight block is threadedly connected to the threaded inner rod, and an outer rod is sleeved on the outside of the threaded inner rod. When the outer rod is screwed, the outer rod can drive the counterweight block to rotate along the threaded inner rod, and can move back and forth relative to the axial direction of the threaded inner rod during the rotation process, thereby realizing the adjustment of different positions of the counterweight block. This structure does not require the counterweight block to be disassembled, alternately positioned, etc. The position of the counterweight block can be adjusted by simply screwing the outer rod, which is more convenient to operate. Moreover, the counterweight block can be fixed at any position along the length direction range of the threaded inner rod, thereby more accurately adjusting the center of gravity of the writing tool, with a wide adjustable range and stronger adaptability.
[0030] As an example, the outer rod 4 described in the present application is radially connected to the counterweight 3, that is, the two are radially connected to each other, so that during the circumferential rotation of the outer rod relative to the threaded inner rod, the counterweight can be synchronously driven to move axially along the threaded inner rod; this radial connection method does not affect the axial up and down movement of the counterweight along the threaded inner rod to adjust the position, so the outer rod and the counterweight can be slidably connected.
[0031] More specifically, as attached Figure 3-4 As shown in Figures 10, a vertical groove 301 is axially arranged on the outer wall of the counterweight block 3 described in the present application (the length direction is extended along the axial direction of the counterweight block), and a vertical ridge 401 is correspondingly arranged on the inner wall of the outer rod 4 (the length direction is extended along the axial direction of the outer rod), and the vertical ridge 401 is sleeved in the vertical groove 301 (that is, the vertical ridge is slidably sleeved in the vertical groove to ensure that the counterweight block can rotate synchronously relative to the outer rod in the circumferential direction and can also slide up and down relative to the axial direction of the outer rod), thereby connecting the outer rod 4 and the counterweight block 3, keeping the two rotating synchronously in the circumferential direction, and moving back and forth relative to the axial direction of the outer rod; with this structure, when the outer rod is rotated, the counterweight block can be driven to rotate circumferentially at the same time, so as to adjust the position of the counterweight block; it should be noted that the extension length of the vertical ridge described in the present application is adapted to the displacement length of the counterweight block running up and down, the head and tail of the vertical groove are aligned with the two ends of the axial length of the counterweight block, and the extension length of the vertical ridge is greater than the extension length of the vertical groove.
[0032] As an example, the vertical grooves 301 described in the present application are provided with four and are evenly distributed along the circumference of the outer wall of the counterweight block 3, and the corresponding vertical ridges 401 are also provided with four, which are respectively slidably matched with the four corresponding vertical grooves 301; by adopting this structure, multiple connections are achieved with the inner rod, and the driving process is smoother.
[0033] As an example, the outer rod 4 described in the present application is a transparent outer rod or a translucent outer rod; that is, the outer rod structure is made of transparent or translucent materials. With this structure, the position of the internal counterweight block can be clearly observed, which is more conducive to the user's precise adjustment and improves the adaptability of the center of gravity.
[0034] As attached Figure 1-6As shown, the front end of the pen barrel 1 described in the present application includes a nib cover 5, and the threaded inner rod 2 and the nib cover 5 are threadedly connected or interference fit (tight fit is not easy to disassemble); when it is a threaded connection, it is convenient to disassemble, that is, an internal thread is set on the inner wall of the nib cover, and an external thread is set on the outside of the rear end of the threaded inner rod, and the two are threadedly connected, so that the counterweight block or the nib cover can be replaced as needed, and the core can be changed (that is, the core 7 can be replaced); when it is an interference fit, the threaded inner rod and the nib cover are tightly connected, which can improve the axial positioning firmness of the outer rod and maintain the stability of the counterweight block adjustment process.
[0035] As attached Figure 2-6 As shown in Figure 9, the threaded inner rod 2 described in the present application extends axially along one end of the pen barrel 1, and the extended end is connected to the nib cover 5; that is, the nib cover is connected to the tail end of the threaded inner rod, and the outer rod is axially fixed between the two. With this structure, a section of threaded inner rod can be directly arranged on the pen barrel, and the two are integrally arranged, that is, integrally formed, and the nib cover is directly connected to the end of the threaded inner rod, so that the outer rod can be axially fixed on the outside of the section of threaded inner rod between the pen barrel and the nib cover, and the rotation process is better linked with the counterweight block.
[0036] As attached Figure 3 , 10 As shown, a first limiting portion 101 is further provided between the threaded inner rod 2 and the pen shaft 1 described in the present application, and a second limiting portion 501 is provided at one end of the pen tip cover 5 close to the counterweight 3, and the outer diameters of the first limiting portion 101 and the second limiting portion 501 are both larger than the outer diameter of the counterweight 3 (or the outer diameters of the first limiting portion and the second limiting portion are larger than the inner diameter of the counterweight), wherein the outer diameters of the first limiting portion and the second limiting portion can be set to be equal, and the two ends of the pen shaft are directly sleeved on the outer walls of the corresponding limiting portions and can rotate circumferentially with respect to each other; adopting this structure, the rising and falling positions of the counterweight can be limited to avoid difficulty in resetting; in addition, the outer rod is sleeved on the outer walls of the two limiting portions to provide the outer rod with certain support, thereby facilitating the stable circumferential rotation of the outer rod.
[0037] As attached Figure 2-3 As shown in Figures 11, the other end of the pen barrel 1 described in the present application relative to the nib cover 5 is provided with a pen clip 6, and the pen clip 6 is threadedly connected to the pen barrel 1; that is, the pen clip has a cylindrical portion connected to the pen barrel and a clamping body fixed on the cylindrical portion, the outer wall of the cylindrical portion is provided with an external thread, and the inner part of the pen barrel is correspondingly provided with an internal thread, and the two are threadedly connected to fix the pressing part, the pen core, etc. of the pen inside the pen barrel; with this structure, when it is necessary to change the core, the pen clip can be removed from here by screwing; and the threaded connection is adopted here, when the nib cover and the threaded inner rod are interference fit, it is also convenient to change the core from here.
[0038] As an example, the counterweight block 3 described in the present application can be made into a colored counterweight block, such as a red counterweight block or a counterweight block of other eye-catching colors; the use of a colored counterweight block can serve as a more eye-catching reminder, allowing the user to quickly visually detect the position of the counterweight block and improve the efficiency of adjustment.
[0039] The writing tool of the present application can realize the adjustable center of gravity of the writing tool. Figure 1-11 As shown, its specific working principle and action process are as follows: first, the counterweight block of the present application is screwed onto the threaded inner rod on the pen barrel, and then the outer rod is sleeved on the outside of the threaded inner rod, and then the end of the threaded inner rod is threadedly connected with the pen tip sleeve, so that the outer rod is sleeved between the pen barrel and the pen tip sleeve, the inner side of the outer rod corresponds to the threaded inner rod, and the outer rod can rotate circumferentially relative to the threaded inner rod; the pen core is inserted from the upper end of the pen barrel, and then the pen pressing piece is sleeved in the pen clip and other components that need to be arranged at this position are conventional components of the pen and will not be described in detail here; the pen clip is screwed onto the end of the pen barrel to realize the assembly of the writing tool; the writing tool needs to be adjusted When adjusting the center of gravity, the outer rod is screwed, and the outer rod drives the counterweight to rotate circumferentially through the vertical ridges and vertical grooves. Since the threaded inner rod is fixed, the counterweight will rotate along the threads of the threaded inner rod and will inevitably move axially upward or downward according to the clockwise or counterclockwise direction of the screwing, thereby achieving adjustment of different positions of the counterweight and ultimately achieving adjustment of the center of gravity. This solution of the present application is easier to adjust and does not require disassembly of the counterweight. Moreover, since the counterweight can move up and down along the length of the threaded inner rod, stepless adjustment can be achieved, thereby more accurately adjusting the center of gravity and improving adaptability.
Claims
1. A writing tool, characterized in that: The structure of the tool comprises a pen holder (1), wherein the pen holder (1) is provided with a threaded inner rod (2), wherein a counterweight (3) is provided on the threaded inner rod (2), and an outer rod (4) is sleeved on the outer side of the threaded inner rod (2), wherein the outer rod (4) can rotate circumferentially relative to the threaded inner rod (2), and the circumferential rotation process drives the counterweight (3) to rotate synchronously, so that the counterweight (3) moves axially along the threaded inner rod (2).
2. The writing tool according to claim 1, characterized in that: The outer rod (4) is radially connected to the counterweight (3).
3. The writing tool according to claim 2, characterized in that: A vertical groove (301) is axially arranged on the outer wall of the counterweight block (3), and a vertical ridge (401) is correspondingly arranged on the inner wall of the outer rod (4), and the vertical ridge (401) is sleeved in the vertical groove (301).
4. The writing tool according to claim 3, characterized in that: There are four vertical grooves (301) arranged and evenly distributed along the circumference of the outer wall of the counterweight (3).
5. The writing tool according to claim 1, characterized in that: The outer rod (4) is a transparent or translucent outer rod.
6. The writing tool according to claim 1, characterized in that: The front end of the pen holder (1) includes a pen tip cover (5), and the threaded inner rod (2) and the pen tip cover (5) are threadedly connected or interference-fitted.
7. The writing tool according to claim 6, characterized in that: The threaded inner rod (2) extends axially along one end of the pen shaft (1), and the extended end is connected to the pen tip cover (5).
8. The writing tool according to claim 6, characterized in that: A first limiting portion (101) is further provided between the threaded inner rod (2) and the pen shaft (1), and a second limiting portion (501) is provided at one end of the pen tip cover (5) close to the counterweight (3), and the outer diameters of the first limiting portion (101) and the second limiting portion (501) are greater than the outer diameter of the counterweight (3).
9. The writing tool according to claim 6, characterized in that: A pen clip (6) is provided at the other end of the pen shaft (1) opposite to the pen tip cover (5), and the pen clip (6) is threadedly connected to the pen shaft (1).