Threaded water economizer for pen

Abstract

The utility model discloses a thread type water economizer for a pen, which comprises a core body, the core body is of a cylinder structure, at least two thread drainage grooves and a thread air inlet groove are arranged on the periphery of the core body, the thread drainage grooves and the thread air inlet groove have the same thread pitch and direction, a water outlet groove is arranged on the outer side of a water outlet column, the water outlet groove penetrates through the water outlet column along the axial direction, and the water inlet groove is communicated with the water outlet column. A water outlet and an air inlet are formed in the end face, connected with the water outlet column, of the core body, the water outlet is communicated with the threaded water discharging groove and the water outlet groove, and the air inlet is communicated with the threaded air inlet groove. A water inlet groove and an air return groove are formed in the outer side of the water inlet column, the water inlet groove and the air return groove are parallel to each other and penetrate through the water inlet column in the axial direction, a water inlet and an air return opening are formed in the end face, connected with the water inlet column, of the core body, the water inlet is communicated with the threaded water discharging groove and the water inlet groove, and the air return opening is communicated with the threaded air inlet groove and the air return groove. The ink pen is simple in structure, convenient to manufacture, low in cost and capable of ensuring that ink can continuously flow to the pen point.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stationery field, concretely relates to a screw type water saver for pen. BACKGROUND

[0002] Straight liquid type brush pen is a kind of modern writing tool, it combines the soft nib of traditional brush pen and the ink supply system of straight liquid type ball pen. Straight liquid type brush pen usually has a water saver, it is a key part connected between ink storage body (or ink reservoir) and nib, responsible for transporting ink from inside ink storage body (or ink reservoir) to nib. But the existing water saver is usually a water guide line groove, and the water guide line groove is straight groove and its both sides are designed with dense fins, these fins use the surface tension of liquid to store water, and control the flow of ink through capillary action, to ensure that ink can continuously flow to nib. But when the water guide line groove is blocked, it will cause the nib to break ink and cannot write normally. In addition, the dense fin structure is not easy to manufacture, the gap between fins is narrow and deep, the mold cost is high, and the yield is low. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a screw type water saver for pen, which has simple structure, easy manufacturing and low cost, and can ensure that ink can continuously flow to nib.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A screw type water saver for pen, comprising a core body, a water outlet column capable of being connected with a nib is arranged at the center of one end of the core body, a water inlet column capable of being connected with an ink storage body is arranged at the center of the other end of the core body, the core body is in cylindrical structure, at least two screw thread water outlet grooves and a screw thread air inlet groove are arranged on the outer periphery of the core body, the screw thread water outlet grooves and the screw thread air inlet groove have the same pitch and direction, a water outlet groove is arranged on the outer side of the water outlet column, the water outlet groove penetrates the water outlet column in axial direction, a water outlet and an air inlet are arranged on the end face of the core body connected with the water outlet column, the water outlet is communicated with the screw thread water outlet grooves and the water outlet groove respectively, and the air inlet is communicated with the screw thread air inlet groove; a water inlet groove and a back air groove are arranged on the outer side of the water inlet column, the water inlet groove and the back air groove are parallel to each other and penetrate the water inlet column in axial direction, a water inlet and a back air inlet are arranged on the end face of the core body connected with the water inlet column, the water inlet is communicated with the screw thread water outlet grooves and the water inlet groove respectively, and the back air inlet is communicated with the screw thread air inlet groove and the back air groove respectively.

[0006] As a preferred scheme of the utility model, the screw thread water outlet groove is provided with two.

[0007] As a preferred scheme of the utility model, the groove width of the threaded water outlet groove is same with the groove width of the threaded air inlet groove.

[0008] As a preferred scheme of the utility model, the groove depth of the threaded air inlet groove is more than twice of the groove depth of the threaded water outlet groove.

[0009] Compared with the prior art, the threaded water saver for pen has the following beneficial effects by implementing the utility model:

[0010] The threaded water saver for pen of the utility model adopts the same direction multilayer threaded structure of air-water separation, which contains at least two threaded water outlet grooves and one threaded air inlet groove, when the water saver is arranged in the pen body, the threaded water outlet groove and the inner wall of the pen body form a small water guiding gap channel, the water guiding gap channel can store water by using the surface tension of liquid and control the flow of ink by capillary action to ensure that the ink can continuously flow to the pen point, and the threaded air inlet groove and the inner wall of the pen body form a back air gap channel, the back air gap channel can be connected with the outside atmosphere to allow air to enter the inside of the ink storage body to maintain air pressure balance, in addition, the design of the multiple threaded water outlet grooves can not only ensure the water filling of the pen point of the writing brush type pen, but also increase the fault tolerance rate of ink breakage, that is, when one threaded water outlet groove breaks ink, the other threaded water outlet grooves can still guide water normally. It can be seen that the threaded water saver for pen of the utility model has the advantages of simple structure, convenient manufacturing, low cost and difficult ink breakage. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0012] Fig. 1 The structure schematic view of the threaded water saver for pen provided by the embodiment of the utility model;

[0013] Fig. 2 The structure schematic view of the threaded water saver for pen provided by the embodiment of the utility model from another view direction;

[0014] Fig. 3 The structure schematic view when the threaded water saver for pen, the ink storage body, the pen point and the pen body are assembled.

[0015] Markings in the drawing:

[0016] Core body 1; water outlet column 11; water inlet column 12; threaded water outlet groove 13; threaded air inlet groove 14; water outlet groove 15; water outlet 16; air inlet 17; water inlet groove 18; back air groove 19; water inlet 110; back air inlet 111; pen point 2; ink storage body 3; pen body 4. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] As Figs. 1 to 3 shown in the drawings of the embodiments of the present application, a pen thread type water saver, which comprises a core 1, a water outlet column 11 capable of being connected with a pen point 2 is arranged at the center of one end of the core 1, a water inlet column 12 capable of being connected with an ink storage body 3 is arranged at the center of the other end of the core 1, the core 1 is a cylindrical structure, at least two thread water outlet grooves 13 and one thread air inlet groove 14 are arranged on the outer periphery of the core 1, the thread water outlet grooves 13 and the thread air inlet groove 14 have the same pitch and direction, a water outlet groove 15 is arranged on the outer side of the water outlet column 11, the water outlet groove 15 penetrates the water outlet column 11 along the axial direction, a water outlet 16 and an air inlet 17 are arranged on the end face of the core 1 connected with the water outlet column, the water outlet 16 is respectively communicated with the thread water outlet grooves 13 and the water outlet groove 15, the air inlet 17 is communicated with the thread air inlet groove 14; a water inlet groove 18 and a back air groove 19 are arranged on the outer side of the water inlet column 12, the water inlet groove 18 and the back air groove 19 are parallel to each other and penetrate the water inlet column 12 along the axial direction, a water inlet 110 and a back air inlet 111 are arranged on the end face of the core 1 connected with the water inlet column 12, the water inlet 110 is respectively communicated with the thread water outlet grooves 13 and the water inlet groove 18, the back air inlet 111 is respectively communicated with the thread air inlet groove 14 and the back air groove 19.

[0019] In use, the ink in the ink storage body 3 flows into the thread water outlet grooves 13 through the water inlet groove 18 on the water inlet column 12, is guided to the water outlet column 11 by the capillary action of the thread water outlet grooves 13, and is finally delivered to the pen point 2 through the water outlet groove 15 on the water outlet column 11 to form a writing trace; at the same time, the external atmosphere enters the inside of the ink storage body 3 through the air inlet 17, the thread air inlet groove 14 and the back air groove 19 on the water inlet column 12 in sequence to balance the air pressure after the ink in the ink storage body 3 flows out, so as to ensure smooth writing.

[0020] Therefore, the pen thread type water saver has the advantages that the same direction multi-layer thread structure of air-water separation is adopted, at least two thread water channels 13 and one thread air inlet channel 14 are contained, when the water saver is arranged in the pen body, the thread water channel 13 and the inner wall of the pen body 4 form a small water guiding gap channel, the water guiding gap channel can store water by using the surface tension of the liquid and control the flow of the ink by capillary action, so that the ink can continuously flow to the pen nib 2; the thread air inlet channel 14 and the inner wall of the pen body form a back air gap channel, the back air gap channel can be connected with the outside air, so that the air can enter the inside of the ink storage body 3 and keep the air pressure balanced; in addition, the design of the multiple thread water channels 13 can ensure that the pen nib 2 is full of water and increase the fault tolerance of the ink breakage, that is, when one thread water channel 13 breaks, the other thread water channels 13 can still guide water normally.

[0021] Exemplarily, the thread water channel 13 is provided with two.

[0022] Exemplarily, the groove width of the thread water channel 13 is the same as the groove width of the thread air inlet channel 14, so that the structure is simple and the manufacturing is convenient.

[0023] Exemplarily, the groove depth of the thread air inlet channel 14 is more than twice the groove depth of the thread water channel 13, so as to adapt to the back air requirement of two or more thread water channels 13 and ensure the air pressure balance.

[0024] Although the preferred embodiments of the present application have been described, those skilled in the art can make other changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0025] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A threaded water saver for a pen, comprising a core, one end of which is provided with a water outlet column capable of being connected to a pen point, and the other end of which is provided with a water inlet column capable of being connected to an ink storage body, characterized in that, The core is a cylindrical structure, the outer periphery of the core is provided with at least two threaded water outlet grooves and a threaded air inlet groove, the threaded water outlet grooves and the threaded air inlet groove have the same pitch and direction, the outer side of the water outlet column is provided with a water outlet groove, the water outlet groove penetrates the water outlet column in the axial direction, the end surface of the core connected with the water outlet column is provided with a water outlet port and an air inlet port, the water outlet port is communicated with the threaded water outlet grooves and the water outlet groove respectively, and the air inlet port is communicated with the threaded air inlet groove; the outer side of the water inlet column is provided with a water inlet groove and a return air groove, the water inlet groove and the return air groove are parallel to each other and penetrate the water inlet column in the axial direction, the end surface of the core connected with the water inlet column is provided with a water inlet port and a return air port, the water inlet port is communicated with the threaded water outlet grooves and the water inlet groove respectively, and the return air port is communicated with the threaded air inlet groove and the return air groove respectively.

2. A threaded water saver for a pen as claimed in claim 1, characterized in that: The threaded water outlet grooves are two.

3. A threaded water saver for a pen as defined in claim 1, wherein: The groove width of the threaded water outlet grooves is the same as the groove width of the threaded air inlet groove.

4. A threaded water saver for a pen as claimed in claim 3, wherein: The groove depth of the threaded air inlet groove is more than twice the groove depth of the threaded water outlet grooves.

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