Processing box

Abstract

The utility model discloses a processing box. The processing box comprises a shell, a rotatable roller and a sealing assembly, an accommodating cavity is formed in the outer wall of the shell; the rotatable roller is arranged in the containing cavity in a penetrating mode, and the end of the rotatable roller extends out of the shell. The sealing assembly is mounted in the accommodating cavity, and the sealing assembly is mounted at the end part of the rotatable roller in a sleeving manner; the sealing assembly comprises an elastic plug and a covering part. The elastic plug is arranged at the end part of the rotatable roller in a sleeving manner, and the elastic plug is positioned in the accommodating cavity; the covering part is arranged at the end of the rotatable roller in a sleeving mode, the covering part covers the containing cavity and is connected with the shell, and the side, facing the elastic plug, of the covering part abuts against the elastic plug.

Description

Technical Field

[0001] This application relates to the field of image forming equipment technology, and more particularly to a processing box. Background Technology

[0002] Image forming equipment (such as printers) is a common type of modern office equipment, and processing cartridges are common consumables used in image forming equipment. Some processing cartridges include a toner delivery roller, a toner hopper, and a developing roller. The toner hopper stores toner (ink toner / color toner, etc.), and the toner delivery roller, by rotating, delivers the toner from the hopper to the developing roller to facilitate the imaging operation in the image forming equipment.

[0003] Under the action of the powder feeding roller, the powder stored in the powder hopper begins to flow and is conveyed to the developing roller. However, because the powder is in a flowing state and it is difficult to precisely limit its movement trajectory, powder often leaks out of the powder hopper during the operation of the powder feeding roller, resulting in waste of consumables. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a processing box that can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] As one embodiment of this utility model, this utility model provides a processing box, including:

[0007] A housing, wherein an accommodating cavity is provided on the outer wall of the housing;

[0008] A rotatable roller, the rotatable roller passing through the receiving cavity, the end of the rotatable roller extending to the outside of the housing; and

[0009] A sealing assembly, installed within the accommodating cavity, is fitted onto the end of the rotatable roller; the sealing assembly includes:

[0010] An elastic plug, the elastic plug being fitted onto the end of the rotatable roller, the elastic plug being located within the receiving cavity; and

[0011] A cover is fitted onto the end of the rotatable roller, the cover is mounted on the receiving cavity and connected to the housing, and the side of the cover facing the elastic plug abuts against the elastic plug.

[0012] Optionally, the inner wall of the elastic plug has a conical structure, wherein the smallest part of the inner wall diameter of the elastic plug abuts against the rotatable roller, and the largest part of the inner wall diameter of the elastic plug does not contact the rotatable roller.

[0013] Optionally, the inner wall diameter of the elastic plug gradually increases from the end away from the cover to the end closer to the cover; or the inner wall diameter of the elastic plug gradually decreases from the end away from the cover to the end closer to the cover.

[0014] Optionally, the inner wall of the elastic plug has a corrugated structure, wherein the minimum diameter of the inner wall of the elastic plug abuts against the rotatable roller, and the maximum diameter of the inner wall of the elastic plug does not contact the rotatable roller.

[0015] Optionally, the outer wall of the elastic plug is provided with at least two first limiting members, and the at least two first limiting members are distributed around the circumference of the elastic plug; the inner wall of the accommodating cavity is provided with second limiting members corresponding to the first limiting members; the first limiting members are respectively engaged and connected with the second limiting members.

[0016] Optionally, the cover includes:

[0017] A pressure ring, which abuts against the end of the elastic plug;

[0018] A third limiting member is disposed on the outer edge of the pressure ring, the third limiting member is distributed circumferentially around the cover and corresponds to the second limiting member; the third limiting member and the second limiting member are respectively engaged and connected; and

[0019] The mounting base has one end of the pressure ring opposite to the elastic plug connected to the mounting base; both the mounting base and the pressure ring have rotatable roller shaft holes along the central axis.

[0020] Optionally, the first limiting member and the third limiting member are both configured as limiting protrusions, and the second limiting member is configured as a limiting groove; or, the first limiting member and the third limiting member are both configured as limiting grooves, and the second limiting member is configured as a limiting protrusion.

[0021] Optionally, the outer edge of the third limiting member is provided with an abutting engagement portion; the abutting engagement portion is located between the third limiting member and the second limiting member, so that the cover and the receiving cavity are interference-fitted.

[0022] Optionally, the abutting part is configured as a guide slope.

[0023] Optionally, the elastic plug is configured as a rubber plug.

[0024] The beneficial effects of this application are as follows: the sealing component provided in this utility model has a significant improvement in the sealing effect of the processing box, which can effectively avoid the problem of powder leakage from the powder hopper during the operation of the rotatable roller, so that the consumables can be fully utilized and the service life can be extended. Attached Figure Description

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a three-dimensional structural diagram of the processing box of this utility model;

[0027] Figure 2 This is a front view structural diagram of the processing box of this utility model;

[0028] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure;

[0029] Figure 4 for Figure 3 A magnified schematic diagram of a portion of region B in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the elastic plug of this utility model;

[0031] Figure 6 This is a cross-sectional structural diagram of the elastic plug of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the cover of this utility model.

[0033] In the picture:

[0034] 100. Housing; 110. Receiving cavity; 200. Powder feeding roller; 300. Sealing assembly; 310. Elastic plug; 311. First limiting member; 320. Cover; 321. Pressure ring; 322. Third limiting member; 323. Mounting base; 324. Abutting mating part; 325. Powder feeding roller shaft hole. Detailed Implementation

[0035] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0041] In one embodiment of this utility model, a processing box is provided, comprising: a housing, a powder feeding roller, and a sealing assembly; the outer wall of the housing is provided with a receiving cavity; the powder feeding roller passes through the receiving cavity, and the end of the powder feeding roller extends to the outside of the housing; the sealing assembly is installed in the receiving cavity, and the sealing assembly is fitted onto the end of the powder feeding roller; the sealing assembly includes: an elastic plug and a cover; the elastic plug is fitted onto the end of the powder feeding roller, and the elastic plug is located in the receiving cavity; the cover is fitted onto the end of the powder feeding roller, the cover is mounted on the receiving cavity and connected to the housing, and the side of the cover away from the housing abuts against the elastic plug.

[0042] Figure 1This is a three-dimensional structural diagram of the processing box of this utility model. Figure 2 This is a front view structural diagram of the processing box of this utility model, as shown. Figure 1 and Figure 2 As shown, the processing box uses the inner cavity of the housing 100 as a toner hopper to store toner (ink / color powder, etc.). The toner delivery roller 200, as a rotatable roller in this embodiment, passes through the inner cavity of the housing 100 and is rotatably connected to the housing 100. During the rotation of the toner delivery roller 200, the toner in the inner cavity of the housing 100 is transferred to the developing roller (not shown in the figure). The toner stored in the inner cavity of the housing 100 begins to flow and is transferred to the developing roller to facilitate the imaging operation in the image forming device. Considering that the toner is in a flowing state and it is difficult to precisely limit its movement trajectory, the toner leakage problem is likely to occur during the toner delivery process of the toner delivery roller 200. In this invention, a sealing component 300 is provided at the end of the toner delivery roller 200 to effectively improve the problem of toner leakage at the end of the toner delivery roller 200, so that the consumables can be fully utilized and the service life can be extended.

[0043] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure. Figure 4 for Figure 3 A magnified schematic diagram of a portion of region B in the middle, as shown below. Figure 3 and Figure 4 As shown, the ends of the powder feeding roller 200 extend from the inner cavity of the housing 100 to the outside of the housing 100 through the elastic plug 310 and the cover 320, respectively. The elastic plug 310 is tightly fitted onto the powder feeding roller 200 within the receiving cavity 110 of the housing 100, forming a first sealing barrier within the receiving cavity 110 of the housing 100. The cover 320 is positioned closer to the end of the powder feeding roller 200 relative to the elastic plug 310. The cover 320 can cover and install itself on the receiving cavity 110 of the housing 100, making the receiving cavity 110 a sealed chamber space, and further forming a second sealing barrier, further preventing powder from leaking out of the inner cavity of the housing 100, achieving a stable and good sealing effect.

[0044] Figure 5 This is a schematic diagram of the elastic plug of this utility model. Figure 6 This is a cross-sectional structural diagram of the elastic plug of this utility model, as shown below. Figure 5 and Figure 6 As shown, the elastic plug 310 has an annular sleeve structure, and the inner wall diameter of the elastic plug 310 is the shaft hole 325 of the powder feeding roller. The arrangement of the inner wall diameter of the elastic plug 310 needs to be such that it can be easily fitted onto the powder feeding roller 200, and that when the powder feeding roller 200 moves, the powder feeding roller 200 can rotate relative to the housing 100 while the elastic plug 310 remains relatively stationary relative to the housing 100.

[0045] In one embodiment, the inner wall of the elastic plug 310 has a conical structure, wherein the smallest part of the inner wall diameter of the elastic plug 310 abuts against the powder feeding roller 200, and the largest part of the inner wall diameter of the elastic plug 310 does not contact the powder feeding roller 200. In this embodiment, the conical structure of the inner wall of the elastic plug 310 reduces the contact area between the elastic plug 310 and the powder feeding roller 200, allowing the elastic plug 310 to smoothly fit onto the powder feeding roller 200. It also minimizes the friction between the elastic plug 310 and the powder feeding roller 200, enabling the powder feeding roller 200 to rotate relative to the housing 100 while the elastic plug 310 remains relatively stationary relative to the housing 100 during operation.

[0046] Further, as shown in the figure, the inner diameter of the elastic plug 310, which has a conical inner wall structure, gradually increases from the end furthest from the cover 320 to the end closest to the cover 320. Specifically, the larger diameter end of the elastic plug 310 with a conical inner wall structure faces the end of the powder feeding roller 200, and the smaller diameter end faces the middle of the powder feeding roller 200. The elastic plug 310 provided in this embodiment can ensure the seal within the receiving cavity 110 as much as possible, reducing the amount of powder leakage within the receiving cavity 110.

[0047] Optionally, not shown in the figure, the inner wall diameter of the elastic plug 310 with a conical inner wall gradually decreases from the end away from the cover 320 to the end closer to the cover 320. Specifically, the smaller diameter end of the elastic plug 310 with a conical inner wall faces the end of the powder feeding roller 200, and the larger diameter end faces the middle of the powder feeding roller 200. The elastic plug 310 provided in this embodiment helps to reduce powder leakage and deposition between the elastic plug 310 and the cover 320.

[0048] In one embodiment, the inner wall of the elastic plug 310 has a corrugated structure (not shown), wherein the smallest part of the inner wall diameter of the elastic plug 310 abuts against the powder feeding roller 200, and the largest part of the inner wall diameter of the elastic plug 310 does not contact the powder feeding roller 200. In this embodiment, the corrugated structure of the inner wall of the elastic plug 310 reduces the contact area between the elastic plug 310 and the powder feeding roller 200, allowing the elastic plug 310 to smoothly fit onto the powder feeding roller 200. A small cavity is formed between the elastic plug 310 and the powder feeding roller 200 to accommodate leaked powder, further reducing the amount of powder leaking into the accommodating cavity 110. Simultaneously, the friction between the elastic plug 310 and the powder feeding roller 200 is minimized, enabling the powder feeding roller 200 to rotate relative to the housing 100 while the elastic plug 310 remains relatively stationary relative to the housing 100 during operation.

[0049] Furthermore, the inner wall diameter at both ends of the elastic plug 310 is minimized, allowing the inner walls at both ends of the elastic plug 310 to abut against the powder feeding roller 200. The inner wall diameter of the elastic plug 310 gradually increases inward from both ends along the axial direction. In this embodiment, the contact area between the elastic plug 310 and the powder feeding roller 200 is minimized as much as possible, and the friction between the elastic plug 310 and the powder feeding roller 200 is minimized as much as possible. This allows the powder feeding roller 200 to rotate relative to the housing 100 while the elastic plug 310 remains relatively stationary relative to the housing 100 during operation. A semi-circular cavity for accommodating leaking powder is formed between the elastic plug 310 and the powder feeding roller 200, which helps reduce the amount of powder leaking into the accommodating cavity 110 and simplifies the manufacturing process, thus improving production efficiency.

[0050] The limiting mechanism between the elastic plug 310 and the housing 100 is described in detail. At least two first limiting members 311 are provided on the outer wall of the elastic plug 310, and these at least two first limiting members 311 are distributed circumferentially around the elastic plug 310. At least two second limiting members are provided on the inner wall of the receiving cavity 110, and these at least two second limiting members are distributed circumferentially around the inner wall of the receiving cavity 110. The at least two first limiting members 311 and the at least two second limiting members are respectively engaged and connected, thereby restricting the rotational freedom of the elastic plug 310 relative to the housing 100, preventing the elastic plug 310 from rotating relative to the housing 100. Simultaneously, the engagement between the first limiting members 311 on the elastic plug 310 and the second limiting members on the inner wall of the receiving cavity 110 also restricts the movement freedom of the rubber plug in directions other than the axial direction along the powder feeding roller 200, thus limiting the elastic plug 310.

[0051] It should be noted that in this embodiment, the number and position of the first limiting member 311 and the second limiting member correspond to achieve a snap-fit ​​connection between them.

[0052] See again Figure 5 and Figure 6 As shown, the outer wall of the elastic plug 310 is provided with three limiting protrusions, and the inner wall of the receiving cavity 110 is provided with three limiting grooves. The three limiting protrusions and three limiting grooves correspond one-to-one. During installation, the limiting protrusions on the elastic plug 310 are engaged with the limiting grooves on the inner wall of the receiving cavity 110. It should be noted that the number of limiting protrusions and limiting grooves is not limited to the number described above.

[0053] Optionally, the outer wall of the elastic plug 310 can be provided with multiple limiting grooves, and the inner wall of the receiving cavity 110 can be provided with multiple limiting protrusions. The multiple limiting protrusions correspond one-to-one with the multiple limiting grooves. During installation, the limiting grooves on the elastic plug 310 can be engaged with the limiting protrusions on the inner wall of the receiving cavity 110. This is not shown in the figure.

[0054] In one optional embodiment, the elastic plug 310 is made of rubber. The specific material is not limited here, as long as the elastic plug 310 has elasticity to meet the requirements of good sealing effect and assembly.

[0055] The structure of the cover 320 is described in detail below. The cover 320 includes: a pressure ring 321, a third limiting member 322, and a mounting base 323. The pressure ring 321 abuts against the end of the elastic plug 310; at least two third limiting members 322 are disposed on the outer edge of the pressure ring 321, and the at least two third limiting members 322 are distributed circumferentially around the cover 320; the at least two third limiting members 322 are respectively engaged with at least two second limiting members; the end of the pressure ring 321 opposite to the elastic plug 310 is connected to the mounting base 323; both the mounting base 323 and the pressure ring 321 have powder feeding roller shaft holes 325 along their central axes.

[0056] It should be noted that in this embodiment, the third limiting member 322 corresponds to the position and number of the second limiting member in order to achieve the locking between the two.

[0057] Figure 7 This is a structural schematic diagram of the cover of this utility model, as shown below. Figure 7 As shown, the mortise ring is located entirely within the groove, used to press against the elastic plug 310 and restrict its degree of freedom along the axial direction of the powder feeding roller 200. The mortise ring also effectively prevents a small amount of powder leakage from the elastic plug 310 from accumulating in the gap between the cover 320 and the elastic plug 310, thus affecting the rotation of the powder feeding roller 200 and improving the stable and smooth operation of the powder feeding roller 200.

[0058] See again Figure 7 As shown, the outer edge of the pressure ring 321 is provided with three limiting protrusions, which are distributed circumferentially around the cover 320. It should be noted that the three limiting protrusions on the outer edge of the pressure ring 321 are of the same specifications as the three limiting protrusions on the outer wall of the elastic plug 310. The three limiting protrusions on the outer edge of the pressure ring 321 correspond one-to-one with the three limiting grooves on the inner wall of the receiving cavity 110. During installation, the limiting protrusions on the outer edge of the pressure ring 321 should engage with the limiting grooves on the inner wall of the receiving cavity 110. It should be noted that the number of limiting protrusions and limiting grooves is not limited to the above.

[0059] Optionally, the outer edge of the pressure ring 321 can be provided with multiple limiting grooves, and the inner wall of the receiving cavity 110 can be provided with multiple limiting protrusions. Correspondingly, the structure of the limiting member on the elastic plug 310 needs to be consistent with the limiting member on the pressure ring 321. That is to say, the outer wall of the elastic plug 310 is also provided with multiple limiting grooves, and the multiple limiting protrusions correspond one-to-one with the multiple limiting grooves. During installation, the limiting grooves on the elastic plug 310 can be engaged with the limiting protrusions on the inner wall of the receiving cavity 110. This is not shown in the figure.

[0060] See again Figure 7 As shown, the outer edge of the third limiting member 322 is provided with an abutting engagement portion 324; the abutting engagement portion 324 is located between the third limiting member 322 and the second limiting member, so that the cover member 320 and the receiving cavity 110 are interference-fitted. Specifically, the abutting engagement portion 324 is configured as a guiding slope, so that when the limiting protrusion provided on the outer edge of the pressing ring 321 is inserted into the second limiting member provided on the inner wall of the receiving cavity 110, the resistance is minimized, and the cover member 320 is installed more smoothly into the receiving cavity 110 of the housing 100.

[0061] The structure of the mounting base 323 is described in detail. The mounting base 323 is installed outside the housing 100 and covers the opening end of the accommodating cavity 110, so that the accommodating cavity 110 forms a closed chamber space, and further forms a second sealing barrier to further prevent powder from leaking out of the inner cavity of the housing 100, thereby achieving a stable and good sealing effect.

[0062] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A processing box, characterized in that, include: A housing, wherein an accommodating cavity is provided on the outer wall of the housing; A rotatable roller, which passes through the receiving cavity and whose end extends to the outside of the housing; as well as A sealing assembly, installed within the accommodating cavity, is fitted onto the end of the rotatable roller; the sealing assembly includes: An elastic plug is fitted onto the end of the rotatable roller and is located within the receiving cavity; as well as A cover is fitted onto the end of the rotatable roller, the cover is mounted on the receiving cavity and connected to the housing, and the side of the cover facing the elastic plug abuts against the elastic plug.

2. The processing box according to claim 1, characterized in that, The inner wall of the elastic plug has a conical structure, wherein the smallest part of the inner wall diameter of the elastic plug abuts against the rotatable roller, and the largest part of the inner wall diameter of the elastic plug does not contact the rotatable roller.

3. The processing box according to claim 2, characterized in that, The inner wall diameter of the elastic plug gradually increases from the end away from the cover to the end closer to the cover; or the inner wall diameter of the elastic plug gradually decreases from the end away from the cover to the end closer to the cover.

4. The processing box according to claim 1, characterized in that, The inner wall of the elastic plug has a corrugated structure, wherein the minimum diameter of the inner wall of the elastic plug abuts against the rotatable roller, and the maximum diameter of the inner wall of the elastic plug does not contact the rotatable roller.

5. The processing box according to claim 1, characterized in that, The outer wall of the elastic plug is provided with at least two first limiting members, which are distributed around the circumference of the elastic plug; the inner wall of the accommodating cavity is provided with second limiting members corresponding to the first limiting members; the first limiting members are respectively engaged and connected with the second limiting members.

6. The processing box according to claim 5, characterized in that, The cover includes: A pressure ring, which abuts against the end of the elastic plug; A third limiting member is disposed on the outer edge of the pressure ring, the third limiting member is distributed circumferentially around the cover and corresponds to the second limiting member; the third limiting member and the second limiting member are respectively engaged and connected; and The mounting base has one end of the pressure ring opposite to the elastic plug connected to the mounting base; both the mounting base and the pressure ring have rotatable roller shaft holes along the central axis.

7. The processing box according to claim 6, characterized in that, The first limiting member and the third limiting member are both configured as limiting protrusions, and the second limiting member is configured as a limiting groove; or, the first limiting member and the third limiting member are both configured as limiting grooves, and the second limiting member is configured as a limiting protrusion.

8. The processing box according to claim 6, characterized in that, The outer edge of the third limiting member is provided with an abutting engagement portion; the abutting engagement portion is located between the third limiting member and the second limiting member, so that the cover and the receiving cavity are interference-fitted.

9. The processing box according to claim 8, characterized in that, The abutting part is configured as a guide slope.

10. The processing box according to any one of claims 1 to 9, characterized in that, The elastic plug is configured as a rubber plug.

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