Mechanical structure of pen capable of removing refill by pressing

Abstract

The mechanical structure comprises a pen clip, a pressing head and a rotor integration assembly, and a first buckle and a second buckle are arranged on one side and the other side of the bottom of the pen clip, the pressing head and the rotor integration assembly respectively. The number of plastic parts (except a pen core and a spring) of the whole pen can be reduced to two, the cost of a mold and injection molding production can be greatly saved, meanwhile, a buckle is arranged on the back face, and therefore the number of the plastic parts of the whole pen is reduced to two. The refill can be easily replaced; by reducing the number of parts of the pen capable of pushing out the refill as much as possible, the production process is simplified, the assembly process is simplified, and the refill can be replaced.

Description

Technical Field

[0001] The utility model relates to the field of pen core replacement, in particular to a mechanical structure of a pen capable of pressing to remove the core. Background Art

[0002] The basic structure of the current mainstream push-to-pull pens is generally: pen barrel, pen clip, push head (the above three are externally visible parts), rotor, retraction spring (optional), pen core, and pen core spring. The assembly process is generally to assemble the pen clip assembly (pen clip, push head, rotor, retraction spring), then put in the pen core and pen core spring, and finally assemble it with the pen barrel using threads or buckles.

[0003] The above processes involve many parts and the assembly is complicated. Although large quantities can be assembled using automatic equipment, the waste of raw materials, equipment and labor resources is inevitable.

[0004] Europe once designed a streamlined mechanical structure, but the refill could not be replaced. This was not a big problem in Europe, where ballpoint pen refills were mainly used (the writing distance could generally reach 3,000 meters to 5,000 meters). However, in China, where gel pen refills were used (the writing distance was generally 300 meters to 500 meters), this structure has not been widely used due to the need to frequently replace the refills.

[0005] Therefore, we propose a mechanical structure of a pen that can be pressed to release the core, which has simplified parts and can greatly save materials, equipment and labor resources by replacing the core. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a mechanical structure of a press-to-pull pen to solve the current mainstream press-to-pull pen. The basic structure is generally: pen holder, pen clip, press head (the above three are externally visible parts), rotor, withdrawal spring (optional), pen core, pen core spring. The assembly process is generally to assemble the pen clip assembly (pen clip, press head, rotor, withdrawal spring), then put the pen core and pen core spring, and finally assemble them with threads or buckles and pen holders. The above process has many parts and the assembly is cumbersome. Although large quantities can be assembled using automatic equipment, the waste of raw materials, equipment, and labor resources is inevitable. Europe once designed a streamlined mechanical structure, but the pen core cannot be replaced. In Europe, where ballpoint pen cores are mainly used (the writing distance can generally reach 3000 meters to 5000 meters), there is no big problem, but in China, where neutral pen cores are used (the writing distance is generally 300 meters to 500 meters), due to the frequent replacement of pen cores, this structure has not been widely used. Technical problems.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a mechanical structure of a pen that can be pressed to eject the core, including a pen clip, a press head, and a rotor integrated component, wherein the pen clip, the press head, and the rotor integrated component are respectively provided with a first buckle and a second buckle on one side and the other side of the bottom;

[0008] A pen holder is arranged at the bottom of the pen clip, the push head and the rotor integrated assembly, and a first card slot and a second card slot are respectively provided at the top of the front end and the top of the rear end of the pen holder.

[0009] Preferably, a first buckle is engaged inside the first slot.

[0010] Preferably, a second buckle is engaged inside the second slot.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model can reduce the number of plastic parts of the whole pen (excluding the refill and spring) to two, which can greatly save the cost of mold and injection molding production. At the same time, the buckle is made on the reverse side, so the refill can be easily replaced;

[0013] By reducing the number of parts of a pen that can be pressed to eject the core as much as possible, the production process is streamlined, the assembly process is simplified, and the core can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a rear view of the utility model.

[0017] In the figure: 1. pen clip, push head, rotor integrated assembly; 2. second buckle; 3. first buckle; 4. pen body; 5. first slot; 6. second slot. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Embodiment 1: A mechanical structure of a pen for pressing the core out, see Figures 1 to 3, including a pen clip, a press head, and a rotor integrated component 1, wherein a first buckle 3 and a second buckle 2 are respectively arranged on one side and the other side of the bottom of the pen clip, the press head, and the rotor integrated component 1; a pen body 4 is arranged at the bottom of the pen clip, the press head, and the rotor integrated component 1, and a first card slot 5 and a second card slot 6 are respectively opened on the top of the front end and the top of the rear end of the pen body 4. By integrating the pen clip, the press head, and the rotor into one, and utilizing the left and right swing of the first buckle 3 and the card slot on the pen body 4, the effect of pressing out and retracting the pen core is achieved. At the same time, the buckle of the pen clip component is made on the back, and the pen clip component can be ejected by simply pressing the buckle, so as to achieve the function of replacing the pen core.

[0020] For details, see Figures 1 to 3 The first card slot 5 is internally engaged with the first card buckle 3 .

[0021] For further information, see Figures 1 to 3 The second card slot 6 is internally engaged with the second card buckle 2 .

[0022] When using a mechanical structure of a pen that can be pressed to eject the refill, the pen clip, the press head, and the rotor are integrated into one body, and the left and right swing of the first buckle 3 and the slot on the pen shaft 4 are utilized to achieve the effect of pressing out the refill and retracting the refill. At the same time, the buckle of the pen clip assembly is made on the back side, and the pen clip assembly can be ejected by simply pressing the buckle to achieve the function of replacing the refill. The number of plastic parts of the entire pen (excluding the refill and the spring) can be reduced to 2, which can greatly save the cost of molds and injection molding production. At the same time, the buckle is made on the back side, so that the refill can be easily replaced.

[0023] The present application reduces the number of parts of a pen that can be pressed to eject the core as much as possible, streamlines the production process, simplifies the assembly process, and enables the replacement of the pen core.

[0024] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0025] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A mechanical structure of a pen that can be pressed to release the core, comprising a pen clip, a press head, and a rotor integrated component (1), characterized in that: The pen clip, snap head, and rotor integrated assembly (1) is provided with a first buckle (3) and a second buckle (2) on one side and the other side of the bottom thereof respectively; A pen holder (4) is arranged at the bottom of the pen clip, snap head and rotor integrated assembly (1), and a first card slot (5) and a second card slot (6) are respectively provided at the front end top and the rear end top of the pen holder (4).

2. A mechanical structure of a pen that can be pressed to release the core as claimed in claim 1, characterized in that: A first buckle (3) is engaged inside the first clamping slot (5).

3. The mechanical structure of a pen that can be pressed to release the core as claimed in claim 1, characterized in that: A second buckle (2) is engaged inside the second clamping slot (6).

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