Controller and writing instrument containing same

Abstract

The invention provides a controller which comprises a shell, a regulating valve, a sealing ring and at least one water storage core, wherein an opening is arranged at one end of the shell; an air returning groove is arranged at one side of the regulating valve and is fixed at one end of the opening of the shell through the sealing ring; the water storage core is accommodated in the shell and is positioned below the regulating valve; and center holes extending along the longitudinal direction of the shell are respectively arranged on the shell, the regulating valve and the water storage core. The invention also provides a writing instrument comprising the controller, and the writing instrument can be a ball-point pen, a highlighter, a marking pen or a fountain pen and can be also used as a pen core. The controller has simple shape structure, and by adopting the sealing ring made of soft materials, the requirement for matching the controller and the inner wall of a pen holder can be met easily, thereby the accuracy requirement and the manufacturing difficulty of parts are greatly reduced. The controller can also regulate the air returning passage area, thereby adapting to the requirements of ink of different types and properties and pen points of different types and specifications.

Description

technical field [0001] The invention relates to the field of writing implements, in particular to a regulator for controlling and regulating the flow and velocity of ink and a writing implement comprising the regulator. Background technique [0002] At present, the internal structures of the direct-liquid writing instruments sold on the market are mainly two types of water reservoir structures and valve-type structures. Such as figure 1 As shown, the water storage 100 is composed of a plurality of circular grooves 101 and straight grooves 102 vertically penetrating therewith, and a hole 103 for placing a water diversion core is provided in the middle. The water reservoir has been pre-wetted. When the ink stored in the pen barrel increases due to pressure, such as internal heating and expansion or external negative pressure, the ink is pressed into the water reservoir through the straight groove, and the multiple ring grooves of the water reservoir will The ink is sucked in...

AI Technical Summary

Problems solved by technology

Although this kind of writing instrument abandons the water storage device with a complicated structure, its overall structure is not simple, not only has many parts but also requires relatively high assembly requirements. Adds cost and may affect speed and size of ink supply

Moreover, if it is used as a water-based ballpoint pen, it is impossible to use only one water guide core, but two water guide cores must be used for docking, so there will be hidden dangers in the reliability and stability of the matching and docking of the two water guide cores, etc.

[0007] To sum up, there is still a common limitation in the writing tools of the current direct-liquid structure. For inks of different types and performances, as well as pen tips of different types and specifications, the size, structure or shape of the parts of the direct-liquid structure must be changed. Etc. That is to say, it is impossible to use the same straight liquid structure to adapt to the needs of inks of different types and performances, as well as pen tips of different types and specifications, which will increase a lot of difficulties for the production and manufacture of writing instruments and make the production cost rise

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