CN213338309U

CN213338309U - Drum assembly and printing device

Info

Publication number: CN213338309U
Application number: CN202022572298.7U
Authority: CN
Inventors: 黄万红
Original assignee: Zhuhai Nastar Information Technology Co Ltd
Current assignee: Zhuhai Nastar Information Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-06-01
Anticipated expiration: 2030-11-09

Abstract

The application provides a drum assembly and a printing device. The utility model provides a drum subassembly includes sensitization drum unit, powder box and handle spare, sensitization drum unit has the storage tank that is used for the holding powder box, handle spare sets up the edge outside at the storage tank, handle spare is through pivot and sensitization drum unit rotatable coupling, and handle spare can be rotated to the sensitization drum unit relatively and close up the position or deviate from the open position of powder box near the powder box, the outside convex bulge has on the lateral wall of powder box towards handle spare, the part structure of handle spare forms backstop structure, when handle spare is located and closes up the position, backstop structure keeps off and establishes the top along handle spare direction of rotation at the bulge, in order to lock the powder box in the storage tank. The application provides a drum subassembly can guarantee to print in-process and the transportation that powder box and sensitization drum unit remain the stationary contact, improves and prints the quality, improves user experience.

Description

Drum assembly and printing device

Technical Field

The application relates to the technical field of imaging consumables, in particular to a drum assembly and a printing device.

Background

Printing device is in life and work as an office accommodation wide application, and the drum subassembly is as the very important part among the printing device for printing device's development formation of image, is provided with the powder box on the drum subassembly usually, and the powder box is used for the storage and provides developers such as carbon dust to the drum subassembly, and the drum subassembly is on the carbon dust rendition is to the paper after the development formation of image to realize printing the function.

Among the prior art, the powder box is usually detachable installs on the drum subassembly to with the relative setting of sensitization drum in the drum subassembly, with to sensitization drum supply carbon dust, for the convenience with the powder box follow drum subassembly dismantlement down, the powder box is usually pegged graft in the draw-in groove of drum subassembly casing, the box body that the user can stimulate the powder box, directly takes out the powder box from the draw-in groove.

However, the installation structure of the powder box on the drum component in the prior art is unstable, and the looseness is easily generated in the printing process or the carrying process.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned shortcoming in the prior art at least partially, one of the purposes of this application lies in providing a drum subassembly and printing device, can guarantee that the powder box keeps stable contact with the drum subassembly in printing process and the transportation, improves and prints the quality, improves user experience.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, the application provides a drum subassembly, this drum subassembly includes the sensitization drum unit, powder box and handle spare, the sensitization drum unit has the storage tank that is used for the holding powder box, handle spare sets up the edge outside at the storage tank, handle spare is through pivot and sensitization drum unit rotatable coupling, and handle spare sensitization drum unit relatively rotates to the position of closing up that is close to the powder box or the open position that deviates from the powder box, when drum subassembly is installed and is used on printing device, handle spare can rotate and pack up, and when taking off from printing device, can rotate and open, be convenient for carry and take.

The side wall of the powder box facing the handle part is provided with a convex part protruding outwards, part of the structure of the handle part forms a stopping structure, and when the handle part is located at a folding position, the stopping structure is arranged above the convex part along the rotation direction of the handle part in a stopping mode so as to lock the powder box in the containing groove. So set up, when the handle spare folds, can utilize backstop structure to provide the packing force for the powder box for powder box and sensitization drum unit keep relatively fixed, thereby can guarantee to print in-process and the transportation that powder box and sensitization drum unit keep the stable contact, improve and print the quality, improve user experience.

As an alternative embodiment, the handle member includes a holding portion and two connecting portions respectively connected to opposite ends of the holding portion, the connecting portions are hinged to the photosensitive drum unit through a rotating shaft, and a stopping structure is provided on at least one of the holding portion and the connecting portions, so that when the handle member rotates relative to the powder container, the stopping structure can abut on the upper portion of the protruding portion of the powder container to lock the powder container or disengage from the protruding portion to unlock the powder container.

As an alternative embodiment, the bottom of the holding portion has a stop surface for forming a stop structure, and when the handle member is located at the closed position, the stop surface is attached to the top surface of the protruding portion to stop the protruding portion, so that a downward acting force can be applied to the protruding portion to prevent the compact from shaking in the accommodating groove.

As an alternative embodiment, the stop surface extends to the whole lower edge of the holding portion, so that the stop structure and the protruding portion can be ensured to have a larger contact surface when abutting against each other, and the reliability of the locking of the handle member to the powder container is improved.

As an alternative embodiment, a stopper extending toward the compact is provided on a side wall of the handle member facing the compact, and the stopper forms a stopper structure.

As an optional implementation manner, the first end of the connecting portion is connected with the holding portion, the second end of the connecting portion extends to the side of the handle member and forms a rotating shaft, a shaft hole matched with the second end of the connecting portion is formed in the photosensitive drum unit, the rotating shaft extends into the shaft hole so that the connecting portion and the photosensitive drum unit can rotate relatively, the stopping portion is located at the second end of the connecting portion, and the stopping portion can apply a downward pressing force to the protruding portion so as to prevent the powder box from shaking in the accommodating groove.

As an optional implementation manner, the two stopping portions are symmetrically arranged on the two connecting portions respectively, so that the two opposite sides of the powder box can be locked simultaneously by the stopping portions, and the whole stress of the powder box is more balanced.

As an alternative embodiment, the shape of the projection comprises at least one of: protrusion in the protruding of powder box lateral wall, protrusion in the bar of powder box lateral wall, wherein, the length direction of bar is parallel to each other with the length direction of handle spare to the both ends of bar can extend to the connecting portion position of handle spare and the backstop portion butt on the connecting portion.

As an alternative embodiment, at least one of the surface of the stopping structure facing the bulge and the surface of the bulge facing the stopping structure is provided with a rubber layer, so that the friction force between the two can be increased when the two are abutted, and the reliability of the locking of the handle piece to the powder box is improved.

In a second aspect, the present application provides a printing apparatus comprising a drum assembly as described above, the drum assembly being removably mountable on the printing apparatus.

The application provides a drum component and a printing device, the drum component comprises a photosensitive drum unit, a powder box and a handle piece, the photosensitive drum unit is provided with a containing groove for containing the powder box, the handle piece is arranged at the outer side of the edge of the containing groove, the handle piece is rotatably connected with the photosensitive drum unit through a rotating shaft, and the handle member can be rotated to a closed position close to the compact or an open position away from the compact relative to the photosensitive drum unit, when the drum component is arranged on the printing device for use, the handle component can be rotated and folded, and when the drum component is taken down from the printing device, the handle component can be rotated and unfolded for convenient carrying, wherein, the side wall of the powder box facing the handle part is provided with a convex part which protrudes outwards, part of the structure of the handle part forms a stop structure, when the handle piece is located at the folding position, the stop structure is arranged above the protruding part along the rotating direction of the handle piece in a blocking mode, so that the powder box is locked in the containing groove. So set up, when the handle spare folds, can utilize backstop structure to provide the packing force for the powder box for powder box and sensitization drum unit keep relatively fixed, thereby can guarantee to print in-process and the transportation that powder box and sensitization drum unit keep the stable contact, improve and print the quality, improve user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view from a first perspective of a drum assembly provided by an embodiment of the present application;

FIG. 2 is a schematic structural view from a second perspective of a drum assembly provided by an embodiment of the present application;

FIG. 3 is a partial view of position A of FIG. 1;

FIG. 4 is a partial view of the location B in FIG. 2;

FIG. 5 is a schematic structural view of a photosensitive drum unit in a drum assembly according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a handle member of the drum assembly provided by an embodiment of the present application;

fig. 7 is a schematic structural diagram of a powder box in a drum assembly according to an embodiment of the present disclosure.

Reference numerals:

10-a photosensitive drum unit;

101-a containing groove;

20-powder box;

201-a first projection;

2011-rib plate;

202-a second projection;

30-a handle member;

301-stop face;

302-a rotating shaft;

303-a stop;

31-a grip portion;

32-a connecting portion;

321-a first end;

322-second end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Among the prior art, the powder box is usually detachable installs on the drum subassembly to set up relatively with the sensitization drum in the drum subassembly, the confession china ink mouth of powder box is towards the sensitization drum, in order to be convenient for dismantle the powder box from the drum subassembly down, the powder box is pegged graft usually in the draw-in groove of drum subassembly casing, and the user can stimulate the box body of powder box, directly takes out the powder box from the draw-in groove.

However, the installation structure of the powder box on the drum assembly in the prior art is unstable, and the loosening is easily generated in the printing process or the carrying process, so that on one hand, the process of supplying the carbon powder to the photosensitive drum by the powder box can be unstable, thereby affecting the printing quality, and on the other hand, when the drum assembly is carried or transported, the powder box can fall off from the drum assembly due to vibration, thereby causing the damage of the drum assembly.

In order to overcome the above-mentioned not enough among the prior art, the aim at of this application provides a drum subassembly and printing device, can guarantee to print in-process and the transportation powder box and the drum subassembly and keep stable contact to improve and print the quality, improve user experience.

Example one

Fig. 1 is a schematic structural view of a first viewing angle of a drum assembly provided in an embodiment of the present application, fig. 2 is a schematic structural view of a second viewing angle of a drum assembly provided in an embodiment of the present application, fig. 3 is a partial view of a position a in fig. 1, and fig. 4 is a partial view of a position B in fig. 2, as shown in fig. 1 to 4, this embodiment provides a drum assembly including a photosensitive drum unit 10, a toner cartridge 20, and a handle member 30, the photosensitive drum unit 10 has an accommodating groove 101 for accommodating the toner cartridge 20, the handle member 30 is disposed outside an edge of the accommodating groove 101, the handle member 30 is rotatably connected to the photosensitive drum unit 10 via a rotating shaft 302, and the handle member 30 is rotatable relative to the photosensitive drum unit 10 to a closed position close to the toner cartridge 20 or an open position away from the toner cartridge 20, when the drum assembly is mounted on a printing apparatus for use, the handle member 30 is rotatable, and when the drum assembly is removed from the printing apparatus, can rotate to open, be convenient for carry, can play the function of locking to the installation of powder box 20 in storage tank 101 simultaneously when handle piece 30 can pack up.

Specifically, the side wall of the compact 20 facing the handle member 30 has a protruding portion protruding outward, and a part of the structure of the handle member 30 forms a stopping structure, and when the handle member 30 is located at the closed position, the stopping structure is stopped above the protruding portion along the rotation direction of the handle member 30, so as to lock the compact 20 in the containing groove 101. When the handle 30 is closed, the stopper structure can be used to provide pressing force for the powder box 20, so that the powder box 20 and the photosensitive drum unit 10 are kept relatively fixed, and therefore, the powder box 20 and the photosensitive drum unit 10 can be kept in stable contact in the printing process and the transportation process, the printing quality is improved, and the user experience is improved.

Optionally, the powder cartridge 20 is a storage member for storing developers such as carbon powder, the specific shape and size of the powder cartridge 10 may be designed according to the design requirement of the printing device installed on the drum assembly, which is not specifically limited in this embodiment, and the specific shape of the accommodating groove 101 is matched with the shape of the powder cartridge 20 to ensure the stability of the installation of the powder cartridge 20 in the accommodating groove 101.

In addition, FIG. 5 is a schematic structural diagram of a photosensitive drum unit in a drum assembly according to an embodiment of the present application, as shown in fig. 5, the photosensitive drum unit 10 may include a casing, and a developing image forming member such as a drum core, a developing roller, a charging roller, etc., the casing may have a chamber for accommodating the developing image forming member such as the drum core, the developing roller, and the charging roller, the containing groove 101 is a mounting groove for mounting the powder box 20 on the housing, the chamber for accommodating the developing imaging component is located at one side of the containing groove 101, and the handle member 30 is installed at the other side of the container 101, when the compact 20 is installed in the container 101, the toner cartridge 20 can supply toner to a chamber housing developing image forming components such as a drum core, a developing roller and a charging roller, for developing and imaging, the specific internal structure of the photosensitive drum unit 10, the installation position relationship of each developing and imaging component, and the working principle are the prior art, and are not described herein again.

As an alternative embodiment, the handle member includes a holding portion 31 and two connecting portions 32 respectively connected to opposite ends of the holding portion 31, the connecting portions 32 are hinged to the photosensitive drum unit 10 by a rotating shaft 302, and a stopper structure is provided on at least one of the holding portion 31 and the connecting portions 32, so that when the handle member 30 rotates relative to the compact 20, the stopper structure can abut on the upper side of the protruding portion of the compact 20 to lock the compact 20, or disengage from the protruding portion to unlock the compact 20.

Optionally, both the holding portion 31 and the connecting portion 32 of the handle 30 may be designed to be hollow structures, and reinforcing ribs may be disposed in the hollow structures, so that the weight of the handle 30 may be reduced while the structural strength of the handle 30 is improved.

In addition, the holding portion 31 and the connecting portion 32 may be designed in an integrated manner, or in a split manner, the holding portion 31 and the connecting portion 32 may be made of one of plastic, metal, and the like, or a combination of multiple materials, and the forming process and the manufacturing method of the handle member 30 and the materials used for the holding portion 31 and the connecting portion 32 are not specifically limited in the embodiment of the present application.

It should be noted that the holding portion 31 and the two connecting portions 32 of the handle 30 together form a U-shaped structure, the opening of the U-shaped structure faces the photosensitive drum unit 10, the stopping structures may be disposed on the holding portion 31 or the connecting portions 32, or both the holding portion 31 and the connecting portions 32 may be provided with stopping structures, and correspondingly, different protrusions may be disposed on the outer wall of the compact 20 facing the handle 30, and the different protrusions may respectively correspond to the stopping structures on the holding portion 31 and the connecting portions 32, and the specific structures and matching manners of the stopping structures and the protrusions will be described in detail below.

Fig. 6 is a schematic structural diagram of a handle member in a drum assembly according to an embodiment of the present disclosure, and fig. 7 is a schematic structural diagram of a compact in a drum assembly according to an embodiment of the present disclosure, as shown in fig. 6 and 7, as an alternative implementation, a bottom of the holding portion 31 has a stop surface 301 for forming a stop structure, a side wall of the compact 20 is provided with a first protruding portion 201, the first protruding portion 201 is a protrusion extending outward from the side wall of the compact 20, when the handle member 30 is located at the closed position, the stop surface 301 and a top surface of the first protruding portion 201 are attached to each other to be stopped outside the first protruding portion 201, so that a downward acting force can be applied to the first protruding portion 201, and the compact 20 is prevented from shaking in the accommodating groove 101.

Specifically, the stop surface 301 is located on the outer surface of the grip portion 31 facing the extending direction of the connecting portion 32, when the handle member 30 is retracted, the connecting portion 32 is in a vertical state, the stop surface 301 faces downward, and the first protruding portion 201 may extend below the stop surface 301 and abut against the stop surface 301.

Optionally, the stop surface 301 extends to the entire lower edge of the grip portion 31, that is, the entire outer surface of the grip portion 31 facing the extending direction of the connecting portion 32 may be used as the stop surface 301, so that the stop surface 301 and the first protruding portion 201 may have a larger contact surface when abutting against each other, and meanwhile, when the handle member 30 moves slightly in the axial direction of the rotating shaft 302, the stop surface 301 may still abut against the first protruding portion 201, thereby improving the reliability of the locking of the handle member 30 to the powder container 20.

In addition, the side of first bulge 201 that deviates from backstop surface 301, namely the bottom surface of first bulge 201 can be provided with gusset 2011, and gusset 2011 is connected with first bulge 201 and the lateral wall of powder box 20 simultaneously, and gusset 2011 can improve the structural strength of first bulge 201, avoids first bulge 201 to produce deformation or damage when being compressed tightly by backstop surface 301.

As an alternative embodiment, a stopper 303 extending toward the compact 20 may be provided on a side wall of the handle member 30 facing the compact 20, and the stopper 303 may form a stopper structure.

Specifically, the first end 321 of the connecting portion 32 is connected to the holding portion 31, the second end 322 of the connecting portion 32 extends to the side of the handle 30, and forms the rotating shaft 302, the photosensitive drum unit 10 is provided with a shaft hole matched with the second end 322 of the connecting portion 32, the rotating shaft 302 extends into the shaft hole, the rotating shaft 302 can be in clearance fit with the shaft hole, so that the connecting portion 32 and the photosensitive drum unit 10 can rotate relatively, the stopping portion 303 can be located at the second end 322 of the connecting portion 32, the side wall of the powder box 20 can be provided with the second protruding portion 202, when the handle 30 is in the retracted state, the stopping portion 303 can abut against the second protruding portion 202 and apply a downward pressing force to the second protruding portion 202, thereby preventing the powder box 20 from shaking in the accommodating groove 101.

Optionally, the stopping portions 303 may be two, and are symmetrically disposed on the two connecting portions 32 respectively, the second protruding portion 202 may be a strip-shaped plate protruding from the sidewall of the compact 20, wherein the length direction of the strip-shaped plate is parallel to the length direction of the handle 30, i.e., parallel to the length direction of the holding portion 31, so that the two ends of the strip-shaped plate may extend to the positions corresponding to the connecting portions 32 of the handle 30, and abut against the stopping portions 303 on the two connecting portions 32 respectively, so that the stopping portions 303 may lock the two opposite sides of the compact 20 simultaneously, and the whole stress of the compact 20 is more balanced.

As an alternative embodiment, a rubber layer is disposed on at least one of the surface of the stopper facing the protrusion and the surface of the protrusion facing the stopper, so that the friction between the two can be increased when abutting, and the reliability of the locking of the handle member 30 to the compact 20 can be improved.

Specifically, rubber layers may be disposed on the surfaces of the first protruding portion 201 and the second protruding portion 202, or the surfaces of the stop surface 301 and the stop portion 303, so that when the handle 30 rotates toward the compact 20, that is, when the handle 30 is folded from the open position, the surfaces of the protruding portions may have sliding friction and generate pressure, the rubber layers may be compressed by a small amount in the process, so that the handle 30 may rotate to the completely folded position, that is, attached to the side wall of the compact 20, and when the handle 30 is folded, the friction force between the two may maintain the handle 30 in the folded state, so that the handle 30 may not be separated during the use or transportation of the drum assembly, thereby improving the stability and reliability of the installation of the compact 20 on the drum sensor unit 10.

As an alternative embodiment, the powder container 20 has an ink supply opening, and the handle member 30 is located on a side of the powder container 20 away from the ink supply opening, so that there is enough space for the user to move when the handle member 30 is rotated.

Specifically, the ink supply port of the powder cartridge 20 faces one side of the photosensitive drum unit 10 where the developing imaging components such as the drum core, the developing roller, and the charging roller are installed, and the ink supply port is in butt joint with the ink inlet of the chamber provided with the developing imaging components, so as to provide carbon powder when the drum assembly needs to develop and image.

Example two

In a second aspect, the present application provides a printing device including the drum assembly of the first embodiment, which is detachably mounted on the printing device, and includes the inductive drum unit 10, the powder cartridge 20, and the handle member 30.

Specifically, the powder box 20 is installed on the induction drum unit 10 to provide carbon powder for the induction drum unit 10, the handle member 30 is arranged on one side of the induction drum unit 10 and can be used for lifting the induction drum unit 10, meanwhile, the handle member 30 is provided with a stopping structure, the stopping structure can abut against a protruding portion of the side wall of the powder box 20 when the handle member 30 is folded, so that a downward pressing force is applied to the powder box 20, and the matching mode of the stopping structure and the protruding portion is consistent with that in the first embodiment, and is not described herein again. The printing device provided by the embodiment can ensure that the powder box 20 and the photosensitive drum unit 10 are relatively fixed, and the powder box 20 and the photosensitive drum unit 10 are stably contacted in the printing process, so that the printing quality is improved, and the user experience is improved.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A drum assembly includes a photosensitive drum unit, a powder cartridge, and a handle member; the handle piece is arranged on the outer side of the edge of the containing groove, is rotatably connected with the photosensitive drum unit through a rotating shaft, and can rotate to a closing position close to the powder box or an opening position departing from the powder box relative to the photosensitive drum unit;

the side wall of the powder box facing the handle part is provided with a convex part protruding outwards, part of the structure of the handle part forms a stopping structure, and when the handle part is positioned at the folding position, the stopping structure is stopped and arranged above the convex part along the rotating direction of the handle part so as to lock the powder box in the accommodating groove.

2. The drum assembly according to claim 1, wherein the handle member includes a grip portion and two connecting portions connected to opposite ends of the grip portion, respectively, the connecting portions being hinged to the photosensitive drum unit by the rotary shaft; the stopping structure is arranged on at least one of the holding part and the connecting part.

3. The drum assembly of claim 2, wherein the bottom of the gripping portion has a stop surface for forming the stop structure, the stop surface and the top surface of the projection portion being in abutment with each other for stopping outside of the projection portion when the handle member is in the closed position.

4. The drum assembly of claim 3, wherein the stop surface extends to the entire lower edge of the grip portion.

5. A drum assembly as claimed in claim 2 wherein a stop extending toward the compact is provided on a side wall of the handle member facing the compact, the stop forming the stop.

6. The drum assembly according to claim 5, wherein a first end of the connecting portion is connected to the holding portion, a second end of the connecting portion extends laterally of the handle member and forms the shaft, and the photosensitive drum unit is provided with a shaft hole that is engaged with the second end of the connecting portion, and the shaft extends into the shaft hole to allow relative rotation between the connecting portion and the photosensitive drum unit; the stopping part is positioned at the second end of the connecting part.

7. The drum assembly as claimed in claim 6, wherein the stopper portions are two and symmetrically provided on the two connecting portions, respectively.

8. The drum assembly according to any one of claims 5-7, wherein the shape of the projection comprises at least one of: protrusion in the arch of powder box lateral wall, protrusion in the strip shaped plate of powder box lateral wall, wherein, the length direction of strip shaped plate with the length direction of handle spare is parallel to each other.

9. The drum assembly of claim 8, wherein a rubber layer is disposed on at least one of a surface of the stopper facing the lug and a surface of the lug facing the stopper.

10. A printing apparatus comprising a drum assembly as claimed in any one of claims 1 to 9.