Ink adding type whiteboard pen

Abstract

The utility model relates to the technical field of whiteboard pen manufacturing, and discloses an ink adding type whiteboard pen which comprises a penholder and a refill, the upper end of the penholder is fixedly connected with a mounting plate, the lower side of the mounting plate is communicated with an ink bin, the ink bin is located in the penholder, and the lower end of the ink bin is communicated with a liquid one-way valve. According to the ink supply device, the gas one-way valve and the liquid one-way valve are matched with each other, so that the effect of supplying ink to the sponge in a small scale at a time can be achieved, the ink supply efficiency is improved, and the ink supply efficiency is improved. The effect of more uniform and reasonable writing ink of the whiteboard pen is achieved, the service life of the whiteboard pen can be remarkably prolonged, and the whiteboard pen has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of whiteboard pen manufacturing, in particular to an ink-adding whiteboard pen. Background Art

[0002] A whiteboard pen is a pen specially used for writing or drawing on surfaces such as whiteboards and projectors. It usually uses water-based ink, but there are also models that use oil-based ink. This pen has bright colors and a smooth writing feel, and can leave clear marks on the whiteboard. After use, the handwriting can be easily erased with a whiteboard eraser. It is widely used in today's office field.

[0003] However, by disassembling common whiteboard pens, it is found that the interior of common whiteboard pens is roughly composed of ink, sponge and pen core, wherein the sponge plays the role of soaking in ink, and then soaking the ink into the pen core, so as to achieve the effect of leaving traces by the pen core. In fact, the ink supply and writing principle of such whiteboard pens is very unreasonable, because the ink will be enriched to the lower end of the sponge under the action of gravity, which will cause excessive and high-humidity sponge to supply ink to the pen core, that is, when a newly bought whiteboard pen is used for the first time, the ink consumption is extremely large, and the handwriting is very thick, which exceeds the actual required optimal ink supply per unit font, which directly leads to the service life of the whiteboard pen. Even the ink-adding whiteboard pen still has the phenomenon of wasting ink. Based on this, an ink-adding whiteboard pen is proposed. Utility Model Content

[0004] In order to solve the technical problem of uniform ink supply of a whiteboard pen, the utility model provides an ink-adding whiteboard pen.

[0005] The utility model is implemented by the following technical scheme: an ink-adding whiteboard pen, comprising a pen barrel and a pen core, the upper end of the pen barrel is fixedly connected to a mounting plate, the lower side of the mounting plate is connected to an ink tank, the ink tank is located inside the pen barrel, the lower end of the ink tank is connected to a liquid one-way valve, the lower end of the liquid one-way valve is provided with an ink impregnation mechanism for transporting ink from the ink tank to the pen core, and the upper side of the mounting plate is provided with a hydraulic drive mechanism for squeezing out the ink in the ink tank by air pressure.

[0006] As a further improvement of the above solution, the ink impregnation mechanism includes an ink conduit connected to the lower end of the liquid one-way valve, the lower end of the ink conduit is connected to a shower head, and an ink spreading mechanism for evenly spreading the ink is provided on the lower side of the shower head.

[0007] As a further improvement of the above solution, the ink spreading mechanism includes a plurality of sponge balls fixedly connected to the lower side of the shower head, the plurality of sponge balls are evenly and symmetrically distributed, and a whiteboard pen writing mechanism is provided on the lower side of the plurality of sponge balls.

[0008] As a further improvement of the above scheme, the whiteboard pen writing mechanism includes a sponge that abuts against the lower sides of multiple sponge balls, the lower end of the pen shaft is fixedly connected to the pen tip, the pen core runs through the central axis of the pen tip, and the upper end of the pen core is connected to the lower side of the sponge.

[0009] As a further improvement of the above scheme, the hydraulic drive mechanism includes a threaded tube threadedly connected to the mounting plate, the upper end of the threaded tube is connected to a buffer chamber, and one side of the buffer chamber is provided with an air pressure loading mechanism for injecting external air into the buffer chamber.

[0010] As a further improvement of the above scheme, the air pressure loading mechanism includes an installation groove opened on one side of the buffer chamber, a gas one-way valve is fixedly connected to the inner side of the installation groove, and a gas pushing mechanism is provided on the upper side of the buffer chamber for pushing the gas loaded into the gas one-way valve from the buffer chamber into the ink tank.

[0011] As a further improvement of the above solution, the gas propulsion mechanism includes an air chamber connected to the upper side of the buffer chamber, and a rubber airbag is arranged on the upper side of the air chamber.

[0012] As a further improvement of the above solution, a partition plate is provided between the buffer chamber and the air cavity chamber, and an air flow channel is opened on the partition plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model cooperates with the gas one-way valve, the liquid one-way valve and the ink tank, and can push a certain amount of ink into the sponge at a time through the rubber airbag, while the main ink is retained in the ink tank. This can solve the problem that all the ink is immersed in the sponge, resulting in the pen core consuming too much ink due to serious ink enrichment, and can significantly improve the service life of the whiteboard pen.

[0015] 2. The utility model cooperates with the sponge, the shower head and the sponge ball to realize that a certain amount of ink that enters through the ink conduit is evenly impregnated and transferred to the sponge through the abutment of the sponge ball and the sponge, which is conducive to the uniform supply of ink and can prevent the ink from being enriched at the central axis of the sponge, so that the overall ink supply of the whiteboard pen is more stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an ink-adding whiteboard pen provided by the utility model;

[0017] Figure 2 A first cross-sectional view of an ink-filled whiteboard marker provided by the utility model;

[0018] Figure 3A second cross-sectional view of an ink-filled whiteboard marker provided by the utility model;

[0019] Figure 4 The utility model provides a front view of an ink-filled whiteboard pen.

[0020] Description of main symbols:

[0021] 1. Pen core; 2. Pen tip; 3. Sponge ball; 4. Pen barrel; 5. Ink tube; 6. Liquid one-way valve; 7. Threaded tube; 8. Rubber airbag; 9. Air chamber; 10. Mounting plate; 11. Ink tank; 12. Shower; 13. Sponge; 14. Gas one-way valve; 15. Partition plate; 16. Buffer chamber; 17. Mounting groove. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-Figure 4 An ink-filling whiteboard pen in this embodiment includes a pen barrel 4 and a refill 1. The upper end of the pen barrel 4 is fixedly connected with a mounting plate 10. A threaded hole is opened in the center of the mounting plate 10. The lower side of the mounting plate 10 is connected with an ink tank 11. The ink tank 11 is made of rubber and has excellent corrosion resistance. The ink tank 11 is located inside the pen barrel 4. The lower end of the ink tank 11 is connected with a liquid one-way valve 6. The lower end of the liquid one-way valve 6 is provided with an ink impregnation mechanism for transporting ink from the ink tank 11 to the refill 1. The upper side of the mounting plate 10 is provided with a hydraulic drive mechanism for squeezing the ink in the ink tank 11 by air pressure.

[0025] Please combine Figure 2 As shown, the ink impregnation mechanism includes an ink conduit 5 connected to the lower end of a liquid one-way valve 6. The liquid one-way valve 6 allows liquid ink to enter the ink conduit 5, which is a one-way passage mechanism. The lower end of the ink conduit 5 is connected to a shower head 12, and an ink spreading mechanism for evenly spreading the ink is provided on the lower side of the shower head 12.

[0026] Please combine Figure 2 As shown, the ink spreading mechanism includes a plurality of sponge balls 3 fixedly connected to the lower side of the shower head 12 , the plurality of sponge balls 3 are evenly and symmetrically distributed, and a whiteboard pen writing mechanism is arranged on the lower side of the plurality of sponge balls 3 .

[0027] Please combine Figure 3As shown, the writing mechanism of the whiteboard pen includes a sponge 13 that abuts against the lower sides of multiple sponge balls 3, a pen tip 2 is fixedly connected to the lower end of the pen shaft 4, a pen core 1 runs through the central axis of the pen tip 2, and the upper end of the pen core 1 is connected to the lower side of the sponge 13.

[0028] Please combine Figure 3 and Figure 1 As shown, the hydraulic drive mechanism includes a threaded tube 7 threadedly connected to the mounting plate 10, the upper end of the threaded tube 7 is connected to a buffer chamber 16, and a gas pressure loading mechanism for injecting external air into the buffer chamber 16 is provided on one side of the buffer chamber 16.

[0029] Please combine Figure 3 As shown, the air pressure loading mechanism includes a mounting groove 17 opened on one side of the buffer chamber 16, a gas one-way valve 14 is fixedly connected to the inner side of the mounting groove 17, and a gas pushing mechanism is provided on the upper side of the buffer chamber 16 for pushing the gas loaded into the gas one-way valve 14 from the buffer chamber 16 into the ink tank 11.

[0030] Please combine Figure 1 As shown, the gas propulsion mechanism includes an air chamber 9 communicated with the upper side of the buffer chamber 16 , and a rubber airbag 8 is arranged on the upper side of the air chamber 9 .

[0031] Please combine Figure 3 As shown, a partition plate 15 is provided between the buffer chamber 16 and the air cavity chamber 9 , and an air flow channel is opened on the partition plate 15 .

[0032] The implementation principle of an ink-filled whiteboard pen in the embodiment of the present application is as follows: by rotating the outer side of the buffer chamber 16, the threaded tube 7 and the mounting plate 10 are opened, and ink is added to the ink tank 11 through the threaded holes on the mounting plate 10. After the filling is completed, the threaded tube 7 and the mounting plate 10 are fixed by a threaded sleeve method so that their surfaces are seamlessly connected. When the rubber airbag 8 rebounds to restore the maximum volume, the outside air automatically enters the rotating buffer chamber 16 from the gas one-way valve 14. When the rubber airbag 8 is pressed from above, the gas one-way valve 14 is closed at this time, and the gas in the rubber airbag 8 enters the buffer chamber 16 from the air chamber 9 and then enters the ink tank 11. The air pressure pushes the ink into the liquid one-way valve 6. The liquid one-way valve 6 opens, and the ink enters the ink conduit 5. The ink in the ink conduit 5 is dispersed to the sponge ball 3 through the shower head 12. The multiple sponge balls 3 transfer the ink they carry to the sponge 13 below. The sponge 13 transports the ink to the pen core 1 to achieve the effect of ink supply for the whiteboard pen.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An ink-filled whiteboard pen, comprising a pen holder (4) and a pen core (1), characterized in that: The upper end of the pen barrel (4) is fixedly connected to a mounting plate (10), the lower side of the mounting plate (10) is connected to an ink tank (11), the ink tank (11) is located inside the pen barrel (4), the lower end of the ink tank (11) is connected to a liquid one-way valve (6), the lower end of the liquid one-way valve (6) is provided with an ink impregnation mechanism for conveying ink from the ink tank (11) to the pen core (1), and the upper side of the mounting plate (10) is provided with a hydraulic drive mechanism for squeezing the ink in the ink tank (11) by air pressure.

2. An ink-adding whiteboard marker as claimed in claim 1, characterized in that: The ink impregnation mechanism comprises an ink conduit (5) connected to the lower end of the liquid one-way valve (6), the lower end of the ink conduit (5) is connected to a shower head (12), and an ink spreading mechanism for spreading the ink evenly is arranged on the lower side of the shower head (12).

3. An ink-adding whiteboard marker as claimed in claim 2, characterized in that: The ink spreading mechanism comprises a plurality of sponge balls (3) fixedly connected to the lower side of the shower head (12), the plurality of sponge balls (3) being evenly and symmetrically distributed, and a whiteboard pen writing mechanism being arranged on the lower side of the plurality of sponge balls (3).

4. An ink-adding whiteboard marker as claimed in claim 3, characterized in that: The whiteboard pen writing mechanism comprises a sponge (13) which abuts against the lower sides of a plurality of sponge balls (3); the lower end of the pen shaft (4) is fixedly connected to a pen tip (2); the pen core (1) passes through the central axis of the pen tip (2); and the upper end of the pen core (1) is connected to the lower side of the sponge (13).

5. An ink-adding whiteboard marker as claimed in claim 1, characterized in that: The hydraulic drive mechanism comprises a threaded tube (7) threadedly sleeved with a mounting plate (10); the upper end of the threaded tube (7) is connected to a buffer chamber (16); and a gas pressure loading mechanism for injecting external air into the buffer chamber (16) is provided on one side of the buffer chamber (16).

6. An ink-adding whiteboard marker as claimed in claim 5, characterized in that: The air pressure loading mechanism comprises a mounting groove (17) opened on one side of the buffer chamber (16), a gas one-way valve (14) is fixedly connected to the inner side of the mounting groove (17), and a gas pushing mechanism for pushing the gas loaded into the gas one-way valve (14) from the buffer chamber (16) into the ink tank (11) is arranged on the upper side of the buffer chamber (16).

7. An ink-adding whiteboard marker as claimed in claim 6, characterized in that: The gas propulsion mechanism comprises an air chamber (9) which is in communication with the upper side of the buffer chamber (16), and a rubber air bag (8) is arranged on the upper side of the air chamber (9).

8. An ink-adding whiteboard marker as claimed in claim 7, characterized in that: A partition plate (15) is provided between the buffer chamber (16) and the air chamber (9), and an air flow channel is provided on the partition plate (15).

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