Toner cartridge with inner carbon powder protection device

Abstract

The utility model discloses a toner cartridge with an inner carbon powder protection device, which comprises a cartridge body and a protection device, the cartridge body is provided with a toner storage bin, the toner storage bin is provided with a toner adding port, and the toner storage bin is communicated with the outside through the toner adding port; the protection device is installed at the powder feeding port and provided with a cavity capable of containing a drying agent, air holes are formed in the inner wall of the cavity, and the cavity is communicated with the powder storage bin through the air holes; the outer wall of the protection device is in sealing contact connection with the powder adding opening, a placing opening is formed in the end, facing the outside, of the protection device, the placing opening is communicated with the cavity, and the sealing cover is in sealing connection with the placing opening. In the carbon powder storage process, the drying agent can be used for preventing moisture of the carbon powder, so that the carbon powder can be kept dry, and the quality of a printed product is improved. And assembly and use are convenient. And the drying agent is convenient to replace.

Description

Technical Field

[0001] The utility model relates to a toner box with an inner carbon powder protection device, belonging to the technical field of toner box equipment of printers. Background Art

[0002] The toner cartridge used in the laser printer in the prior art includes a cartridge body and a toner storage bin disposed in the cartridge body. Of course, like the conventional toner cartridge structure, it also has components such as a photosensitive drum, a cleaning scraper, and a charging roller. To ensure the best quality of printed products, a key factor is to ensure that the toner in the toner cartridge is dry and not exposed to moisture.

[0003] In a humid environment, especially in the south when the weather is warm, newly added toner for both printers and copiers will soon become damp and become difficult to use. Even the toner in the original drum is no exception. It will become damp before it is completely used up. The result is that the printed or copied words will be unclear on the entire page, or there will be a partial "white board" phenomenon. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a toner cartridge with an internal carbon powder protection device, which can effectively prevent moisture from entering the toner cartridge and is easy to assemble and use.

[0005] The utility model can adopt the following technical solutions:

[0006] A toner cartridge with an internal carbon powder protection device comprises a box body and a protection device, wherein the box body is provided with a powder storage bin, the powder storage bin is provided with a powder adding port, and the powder storage bin is connected to the outside through the powder adding port; the protection device is installed at the powder adding port, the protection device is provided with a cavity for placing a desiccant, the inner wall of the cavity is provided with air holes, and the air holes connect the cavity with the powder storage bin; the outer wall of the protection device is in sealing contact with the powder adding port, the end of the protection device facing the outside is provided with an inlet, the inlet is connected to the cavity, and a sealing cover is in sealing connection with the inlet.

[0007] The utility model can further solve the problem by taking the following improvement measures:

[0008] A further improvement measure is that an annular protrusion is provided on the outer wall of the powder adding port.

[0009] A further improvement measure is that the inner end of the protective device extends into the powder storage bin.

[0010] A further improvement measure is that the protection device is a cylindrical body, the inner end of the cylindrical body is closed by an inner end surface, the cavity is the interior of the cylindrical body, and the inlet is the outer end opening of the cylindrical body.

[0011] A further improvement measure is that the air hole is arranged on the inner end surface.

[0012] A further improvement measure is that there are multiple air holes.

[0013] A further improvement measure is that the protection device is provided with a part located outside the powder adding port, the part radially extends outward to form an extension portion, and the outer diameter of the extension portion is greater than the inner diameter of the powder adding port.

[0014] A further improvement measure is that the protection device is provided with a sealing protrusion ring at a corresponding position of the inner wall of the annular protrusion.

[0015] A further improvement measure is that the sealing cover is provided with a sealing protruding ring at a position corresponding to the position of the inlet.

[0016] A further improvement measure is that the protection device is made of plastic material and the sealing cover is made of plastic material.

[0017] The above technical solution has the following technical effects:

[0018] 1. In the process of storing toner, the desiccant can protect the toner from moisture, which is beneficial to keeping the toner dry and improving the quality of printed products.

[0019] 2. The utility model has a simple structure and is easy to assemble and use without requiring major changes to the traditional structure.

[0020] 3. The utility model can replace the desiccant by opening the sealing cover, and the replacement of the desiccant is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model.

[0022] Figure 2 It is a structural schematic diagram with a partial cross-sectional structure of the utility model.

[0023] Figure 3 It is a schematic diagram of the protective device of the utility model.

[0024] Figure 4 It is a schematic cross-sectional view of the structure of the protective device of the utility model.

[0025] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the structure. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with specific embodiments.

[0027] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a toner cartridge with an internal toner protection device includes a box body 1 and a protection device 2. The box body is provided with a powder storage bin 3. Of course, like the conventional toner cartridge structure, it has components such as a frame, a photosensitive drum, a cleaning scraper, a charging roller, etc. The powder storage bin 3 is provided with a powder adding port 4, and the powder storage bin 3 is connected to the outside world through the powder adding port 4. The protection device 2 is installed at the powder adding port, and the protection device 2 is provided with a cavity 21 for placing a desiccant, and the inner wall of the cavity 21 is provided with an air hole 23, and the air hole 23 connects the cavity 21 with the powder storage bin 3. The outer wall of the protection device is in sealing contact with the powder adding port 4. The end of the protection device facing the outside is provided with an inlet 5, and the inlet 5 is connected to the cavity 21, and the sealing cover 7 is sealed and connected to the inlet 5 to isolate the cavity 21 from the outside world.

[0028] The inner end of the protective device 2 extends into the powder storage bin 3 .

[0029] In this example, the protection device 2 is a cylindrical body 200, the inner end of which is closed by an inner end surface 24, the cavity is the interior of the cylindrical body, and the inlet 5 is the outer end opening of the cylindrical body. Of course, the protection device can also be in other shapes.

[0030] Working principle: After putting the toner into the powder storage bin through the powder adding port, install the protective device on the powder adding port, then put the desiccant into the cavity, and then cover the entry port with a sealing cover. Alternatively, you can first put the desiccant into the cavity, cover the sealing cover, and then install the protective device on the powder adding port. During the toner storage process, the desiccant can prevent moisture from the toner, which is beneficial for keeping the toner dry and the quality of the printed product. In addition, it is easy to assemble and use. The desiccant can be replaced by opening the sealing cover, which is also convenient.

[0031] Example 2: Figure 5 As shown, the characteristic of this example is that the outer wall of the powder adding port 4 is provided with an annular protrusion 41.

[0032] The protection device 2 is provided with a sealing protrusion ring 6 at the corresponding position of the inner wall of the annular protrusion 41. This structure is conducive to sealing and has a simple structure. The protection device is made of plastic material, and the sealing cover is made of plastic material. Of course, the conventional sealing ring can also be used to achieve sealing. The rest is the same as in Example 1.

[0033] Example 3: Figure 4 As shown, the characteristic of this embodiment is that the sealing cover 7 is provided with a sealing protruding ring 71 at a position corresponding to the position of the inlet. The sealing structure is simple and easy to implement. Of course, the sealing can also be achieved by using a conventional sealing ring. The rest is the same as in Embodiment 1 or Embodiment 2.

[0034] Embodiment 4: The characteristic of this embodiment is that the air hole 23 is arranged on the inner end surface 24.

[0035] The number of the air holes 23 is multiple. The rest is the same as in the first embodiment, the second embodiment or the third embodiment.

[0036] Example 5: Figure 4 , Figure 5 As shown, the characteristic of this example is that the protection device 2 is provided with a part located outside the powder adding port, and the part radially extends outward to form an extension portion 26, and the outer diameter of the extension portion 26 is larger than the inner diameter of the powder adding port 4. This structure is convenient for installation, assembly and disassembly, and can prevent the protection device from falling into the powder storage bin. The rest is the same as in Example 2.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A toner cartridge with an internal toner protection device, Its characteristics are: The invention comprises a box body and a protective device. The box body is provided with a powder storage bin, the powder storage bin is provided with a powder adding port, and the powder storage bin is connected with the outside world through the powder adding port. The protective device is installed at the powder adding port, and the protective device is provided with a cavity for placing a desiccant, and the inner wall of the cavity is provided with air holes, and the air holes connect the cavity with the powder storage bin. The outer wall of the protective device is in sealing contact with the powder adding port, and the end of the protective device facing the outside world is provided with an inlet, which is connected with the cavity, and a sealing cover is in sealing connection with the inlet.

2. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The outer wall of the powder adding port is provided with an annular protrusion.

3. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The inner end of the protective device extends into the powder storage bin.

4. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The protection device is a cylindrical body, the inner end of which is closed by an inner end surface, the cavity is the interior of the cylindrical body, and the inlet is the outer end opening of the cylindrical body.

5. The toner cartridge with an internal toner protection device according to claim 4, Its characteristics are: The air hole is arranged on the inner end surface.

6. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The number of the pores is multiple.

7. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The protection device is provided with a part located outside the powder adding port, the part radially extends outward to form an extension part, and the outer diameter of the extension part is greater than the inner diameter of the powder adding port.

8. The toner cartridge with an internal toner protection device according to claim 2, Its characteristics are: The protection device is provided with a sealing protrusion ring at a corresponding position of the inner wall of the annular protrusion.

9. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The sealing cover is provided with a sealing protruding ring at a position corresponding to the position of the insertion port.

10. The toner cartridge with an internal toner protection device according to claim 1, Its characteristics are: The protective device is made of plastic material, and the sealing cover is made of plastic material.

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