Powder discharging assembly, imaging assembly, waste powder barrel, imaging assembly set and printing equipment

Abstract

The invention relates to a powder discharging assembly, an imaging assembly, a waste powder barrel, an imaging assembly set and printing equipment, the powder discharging assembly can be installed on the imaging assembly and used for discharging powder in the imaging assembly, the imaging assembly is detachably installed on the printing equipment, and the powder discharging assembly comprises a powder discharging pipe and a sealing cover; the powder discharging pipe is provided with a first main body part and a second main body part, the first main body part is provided with a powder discharging port, and the sealing cover is arranged on the powder discharging pipe and provided with a communicating port in the radial direction of the powder discharging pipe; when the sealing cover is configured to rotate relative to the first main body part under the action of external force and move to the side, provided with the powder discharging port, of the powder discharging pipe in the axial direction of the powder discharging pipe, the sealing cover continues to move to the powder discharging port in the axial direction of the second main body part to be communicated with the communicating port. By means of the design, the reliability of the sealing cover is improved, the powder discharging opening can be opened only when the sealing cover is located at the preset position, and therefore the possibility of waste powder leakage is reduced.

Description

Technical Field

[0001] This application relates to the technical field of printers, and particularly to a powder discharge assembly, an imaging assembly, a waste powder cartridge, an imaging assembly group, and a printing device. Background Art

[0002] With the development of technology, printers are used more and more widely. The imaging assembly is an important component of a printer. The imaging assembly realizes the imaging process through toner, and the imaging assembly can discharge the generated waste powder into the waste powder cartridge through a waste powder discharge pipe. However, at present, the waste powder discharge pipe of the imaging assembly is prone to waste powder leakage, resulting in waste powder pollution. Summary of the Invention

[0003] This application provides a powder discharge assembly, an imaging assembly, a waste powder cartridge, an imaging assembly group, and a printing device, which are used to solve the problem that the waste powder discharge pipe is prone to waste powder leakage.

[0004] In a first aspect, this application provides a powder discharge assembly. The powder discharge assembly can be installed on an imaging assembly for discharging the powder in the imaging assembly. The imaging assembly is detachably installed on a printing device. The powder discharge assembly includes: a powder discharge pipe and a sealing cover. The powder discharge pipe has a first main body portion and a second main body portion along its own axis. The first main body portion is provided with a powder discharge port for discharging powder. The sealing cover is arranged on the powder discharge pipe for blocking or opening the powder discharge port. Wherein, the sealing cover is provided with a communication port along the radial direction of the powder discharge pipe. When the sealing cover is configured to be able to rotate relative to the first main body portion under an external force and at the same time can move axially along the powder discharge pipe to the side of the powder discharge pipe where the powder discharge port is located, and then the sealing cover continues to move axially along the second main body portion until the powder discharge port communicates with the communication port.

[0005] In a possible implementation manner, along the axis of the powder discharge pipe, a limiting portion is arranged on one side of the communication port. The limiting portion is used to cooperate with a limiting groove axially opened on the second main body portion along the powder discharge pipe. When the sealing cover rotates relative to the first main body portion and at the same time can move axially along the powder discharge pipe to the side of the powder discharge pipe where the powder discharge port is located, the limiting portion can extend into the limiting groove, and the limiting portion can move along the limiting groove until the powder discharge port communicates with the communication port.

[0006] In a possible implementation, the sealing cover includes a sealing portion, the sealing portion includes a first sealing portion and a second sealing portion connected to each other, and there is a sealing space for accommodating the powder discharge pipe between the first sealing portion and the second sealing portion; along the axial direction of the powder discharge pipe, the first sealing portion is located between the communication port and the limiting portion, and the area of the second sealing portion is larger than the area of the first sealing portion.

[0007] In a possible implementation, the limiting portion includes a first limiting section extending radially along the powder discharge pipe and a second limiting section extending axially along the powder discharge pipe. One end of the first limiting section is connected to the first sealing portion, and the other end is connected to the second limiting section. The second limiting section can extend into the limiting groove and can move along the limiting groove to communicate the powder discharge port with the communication port.

[0008] In a possible implementation, the second main body portion is provided with a mating groove communicating with the limiting groove. The mating groove is located on the side of the limiting groove close to the powder discharge port and is arranged circumferentially along the powder discharge pipe; the mating groove is used to receive the second limiting section, and the second limiting section can extend into the limiting groove from the mating groove; along the axial direction of the powder discharge pipe, the side wall of the mating groove on the side away from the limiting groove is used to abut against the first limiting section to limit the position of the sealing cover.

[0009] In a possible implementation, the powder discharge assembly further includes an elastic member. The elastic member is sleeved on the second main body portion. One end of the elastic member is connected to the sealing cover, and the other end is connected to the drum assembly of the imaging assembly. The elastic member is used to drive the sealing cover to move axially along the powder discharge pipe.

[0010] In a possible implementation, the powder discharge assembly further includes an elastic member. The elastic member is sleeved on the second main body portion, and the elastic member can abut against the first limiting section.

[0011] In a possible implementation, the first main body portion is provided with a recessed portion. The recessed portion extends radially along the powder discharge pipe in a direction away from the sealing cover, and the powder discharge port is opened in the recessed portion.

[0012] In a possible implementation, along the axial direction of the powder discharge pipe, the size of the communication port is greater than or equal to the size of the powder discharge port.

[0013] In a possible implementation, along the axial direction of the powder discharge pipe, the communication port includes a communication port top wall and a communication port bottom wall. When the communication port is communicated with the powder discharge port, the radial end surface of the powder discharge pipe is located between the communication port top wall and the communication port bottom wall; or, the radial end surface of the powder discharge pipe is flush with the communication port top wall.

[0014] In a possible implementation, the sealing cover is provided with at least one protruding portion, and the protruding portion extends radially away from the powder discharge pipe along the radial direction of the powder discharge pipe, and the protruding portion is used for cooperating with the waste powder cartridge of the printing device.

[0015] In a second aspect, an embodiment of the present application provides an imaging assembly, the imaging assembly includes a housing and an imaging member accommodated in the housing, and the housing includes an installation area for installing the powder discharge assembly as described in any one of the above.

[0016] In a third aspect, an embodiment of the present application provides an imaging assembly for a printing device. The imaging assembly is detachably installed on the printing device and includes a powder discharge pipe and a sealing cover. The powder discharge pipe has a first main body portion and a second main body portion along its own axial direction. The first main body portion is provided with a powder discharge port for discharging waste powder. The sealing cover is arranged on the powder discharge pipe for blocking or opening the powder discharge port; the sealing cover can rotate relative to the powder discharge pipe and can move axially along the powder discharge pipe. Among them, the sealing cover is provided with a communication port along the radial direction of the powder discharge pipe. When the sealing cover rotates relative to the first main body portion and can move axially along the powder discharge pipe to the side of the powder discharge pipe where the powder discharge port is located, and then the sealing cover continues to move axially along the second main body portion until the powder discharge port is communicated with the communication port.

[0017] In a possible implementation, along the axial direction of the powder discharge pipe, a limiting portion is provided on one side of the communication port, and the limiting portion is used for cooperating with a limiting groove axially opened on the second main body portion along the axial direction of the powder discharge pipe. When the sealing cover rotates relative to the first main body portion and can move axially along the powder discharge pipe to the side of the powder discharge pipe where the powder discharge port is located, the limiting portion can extend into the limiting groove, and the limiting portion can move along the limiting groove until the powder discharge port is communicated with the communication port.

[0018] In a possible implementation, the sealing cover includes a sealing portion, the sealing portion includes a first sealing portion and a second sealing portion connected to each other, and there is a sealing space for accommodating the powder discharge pipe between the first sealing portion and the second sealing portion; along the axial direction of the powder discharge pipe, the first sealing portion is located between the communication port and the limiting portion, and the area of the second sealing portion is larger than the area of the first sealing portion.

[0019] In a possible implementation, the limiting portion includes a first limiting section extending radially along the powder discharge pipe and a second limiting section extending axially along the powder discharge pipe. One end of the first limiting section is connected to the first sealing portion, and the other end is connected to the second limiting section. The second limiting section can extend into the limiting groove and can move along the limiting groove to make the powder discharge port communicate with the communication port.

[0020] In a possible implementation, the second main body portion is provided with a mating groove communicating with the limiting groove. The mating groove is located on the side of the limiting groove close to the powder discharge port and is arranged circumferentially along the powder discharge pipe; the mating groove is used to receive the second limiting section, and the second limiting section can extend into the limiting groove from the mating groove; along the axial direction of the powder discharge pipe, the side wall of the mating groove on the side away from the limiting groove is used to abut against the first limiting section to limit the position of the sealing cover.

[0021] In a possible implementation, the imaging assembly further includes an elastic member. The elastic member is sleeved on the second main body portion. One end of the elastic member is connected to the sealing cover, and the other end is connected to the drum assembly of the imaging assembly. The elastic member is used to drive the sealing cover to move axially along the powder discharge pipe.

[0022] In a possible implementation, the imaging assembly further includes an elastic member. The elastic member is sleeved on the second main body portion, and the elastic member can abut against the first limiting section.

[0023] In a possible implementation, the first main body portion is provided with a recessed portion. The recessed portion extends radially away from the sealing cover along the powder discharge pipe, and the powder discharge port is opened in the recessed portion.

[0024] In a possible implementation, along the axial direction of the powder discharge pipe, the size of the communication port is larger than the size of the powder discharge port.

[0025] In a possible implementation manner, along the axial direction of the powder discharge pipe, the communication port includes a communication port top wall and a communication port bottom wall. When the communication port is communicated with the powder discharge port, the radial end face of the powder discharge pipe is located between the communication port top wall and the communication port bottom wall; or, the radial end face of the powder discharge pipe is flush with the communication port top wall.

[0026] In a possible implementation manner, the sealing cover is provided with at least one convex portion, and the convex portion extends radially away from the powder discharge pipe along the radial direction of the powder discharge pipe, and the convex portion is used for cooperating with the waste powder cartridge of the printing device.

[0027] In a possible implementation manner, the powder discharge pipe is detachably installed on the imaging component, or the powder discharge pipe is integrally formed with the imaging component.

[0028] In a fourth aspect, an embodiment of the present application provides a waste powder cartridge, which is detachably installed on a printing device. The waste powder cartridge is used for cooperatively installing an imaging component as described in any one of the above, and the waste powder cartridge is used for applying an external force to the sealing cover so that the sealing cover can rotate relative to the first main body portion and can move axially along the powder discharge pipe to the side where the powder discharge pipe has the powder discharge port, and then the sealing cover continues to move axially along the second main body portion until the powder discharge port is communicated with the communication port.

[0029] In a possible implementation manner, the waste powder cartridge includes a mounting hole, and at least one guiding groove is formed in the inner wall of the mounting hole along the radial direction of the powder discharge pipe, and the guiding groove can be used for cooperating with at least one convex portion on the sealing cover.

[0030] In a possible implementation manner, the guiding groove extends circumferentially along the mounting hole to form a spiral shape.

[0031] In a possible implementation manner, at least one avoiding groove is formed in the outer wall of the mounting hole along the radial direction of the powder discharge pipe, and the avoiding groove is communicated with the guiding groove, and the convex portion can extend into the guiding groove through the avoiding groove.

[0032] In a possible implementation manner, the waste powder cartridge includes a waste powder inlet communicated with the mounting hole, and the waste powder inlet is used for cooperating with the powder discharge port to collect the waste powder discharged from the imaging component.

[0033] In a fifth aspect, an embodiment of the present application provides an imaging component group, including a plurality of imaging components as described in any one of the above.

[0034] Sixth aspect, an embodiment of the present application provides a printing device, including a main body part and an imaging component. The imaging component is installed on the main body part. The imaging component is the imaging component in any one of the above, or the imaging component group in any one of the above, and the waste powder cartridge in any one of the above.

[0035] An embodiment of the present application provides a powder discharge component, an imaging component, a waste powder cartridge, an imaging component group, and a printing device. The powder discharge component can be installed on the imaging component and is used to discharge the powder in the imaging component. The imaging component is detachably installed on the printing device. The powder discharge component includes a powder discharge pipe and a sealing cover. The powder discharge pipe has a first main body part and a second main body part along its own axial direction. The first main body part is provided with a powder discharge port for discharging powder. The sealing cover is arranged on the powder discharge pipe and is used to block or open the powder discharge port. Among them, the sealing cover is provided with a communication port along the radial direction of the powder discharge pipe. When the sealing cover is configured to be able to rotate relative to the first main body part under the action of an external force and at the same time can move axially along the powder discharge pipe to the side where the powder discharge pipe has the powder discharge port, and then the sealing cover continues to move axially along the second main body part until the powder discharge port is communicated with the communication port. Such a design improves the reliability of the sealing cover, enabling it to open the powder discharge port only at a preset position, thereby reducing the possibility of waste powder leakage, and further being beneficial to improving the overall reliability of the printer and reducing the possibility of other components of the printer or the user's hand being contaminated due to waste powder leakage.

[0036] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. Description of the Drawings

[0037] Figure 1 Schematic diagram of the powder discharge pipe provided by the embodiment of the present application;

[0038] Figure 2 Schematic diagram of the sealing cover provided by the embodiment of the present application;

[0039] Figure 3 Schematic diagram of an imaging component provided by the embodiment of the present application;

[0040] Figure 4 Schematic diagram of an imaging component before the sealing cover rotates provided by the embodiment of the present application;

[0041] Figure 5 For Figure 4 Enlarged view of part I in

[0042] Figure 6 Schematic diagram of an imaging component after the sealing cover rotates provided by the embodiment of the present application;

[0043] Figure 7 For Figure 6Enlarged view of part II;

[0044] Figure 8 Schematic diagram of an imaging component provided by an embodiment of the present application when the powder discharge port is open;

[0045] Figure 9 is Figure 8 Enlarged view of part III;

[0046] Figure 10 Schematic diagram of a waste powder cartridge and an imaging component in a printing device provided by an embodiment of the present application;

[0047] Figure 11 Schematic diagram of a waste powder cartridge provided by an embodiment of the present application;

[0048] Figure 12 is Figure 11 Enlarged view of part IV;

[0049] Figure 13 Schematic diagram when the powder discharge pipe of the embodiment of the present application extends into the waste powder cartridge.

[0050] Reference numerals:

[0051] 1 - Imaging component;

[0052] 11 - Drum component;

[0053] 12 - Developing component;

[0054] 2 - Powder discharge pipe;

[0055] 21 - First main body part;

[0056] 211 - Powder discharge port;

[0057] 212 - Concave part;

[0058] 22 - Second main body part;

[0059] 221 - Limit groove;

[0060] 222 - Fitting groove;

[0061] 2a - Radial end face

[0062] 3 - Sealing cover;

[0063] 311 - First sealing part;

[0064] 312 - Second sealing part;

[0065] 32 - Limiting part;

[0066] 321 - First limiting section;

[0067] 322 - Second limiting section;

[0068] 331 - Connecting port;

[0069] 331a - Top wall of the connecting port;

[0070] 331b - Bottom wall of the connecting port;

[0071] 34 - Protrusion;

[0072] 4 - Elastic member;

[0073] 5 - Waste powder cartridge;

[0074] 51 - Mounting hole;

[0075] 511 - Guide groove;

[0076] 512 - Avoidance groove.

[0077] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Detailed implementation manners

[0078] To better understand the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0079] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0080] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0081] It should be understood that the term " / and / " used herein is only a description of the associated relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0082] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the angles shown in the drawings, and should not be construed as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component.

[0083] As Figures 1 to 3 shown, the embodiments of the present application provide a powder discharge assembly. The powder discharge assembly can be installed on the imaging assembly 1 and is used to discharge the powder in the imaging assembly 1. The imaging assembly 1 is detachably installed on the printing device. The powder discharge assembly includes a powder discharge pipe 2 and a sealing cover 3. The powder discharge pipe 2 has a first main body portion 21 and a second main body portion 22 along its own axis. The first main body portion 21 is provided with a powder discharge port 211 for discharging powder. The sealing cover 3 is arranged on the powder discharge pipe 2 and is used to block or open the powder discharge port 211. Among them, the sealing cover 3 is provided with a communication port 331 along the radial direction of the powder discharge pipe 2. When the sealing cover 3 is configured to be able to rotate relative to the first main body portion 21 under the action of an external force and at the same time can move axially along the powder discharge pipe 2 to the side of the powder discharge pipe 2 where the powder discharge port 211 is located, and then the sealing cover 3 continues to move axially along the second main body portion 22 until the powder discharge port 211 is communicated with the communication port 331.

[0084] The imaging assembly 1 can be used in a printing device, and the printing device can be a laser printer. The height direction of the imaging assembly is parallel to the Z axis, the length direction is parallel to the X axis, and the width direction is parallel to the Y axis. The imaging assembly 1 realizes the imaging process through toner. During the operation of the imaging assembly 1, waste toner is generated, and the waste toner can be discharged through the powder discharge pipe 2. The axis of the powder discharge pipe 2 is parallel to the length direction of the imaging assembly 1, that is, parallel to the X axis, and the radial direction of the powder discharge pipe 2 is perpendicular to the axis of the powder discharge pipe 2. Along the axis of the powder discharge pipe 2, the second main body portion 22 is located on one side of the first main body portion 21, and the powder discharge port 211 is opened on the circumferential surface of the first main body portion 21. The waste toner can be discharged through the powder discharge port 211. The sealing cover 3 has a cylindrical structure with openings at both ends and can be sleeved on the powder discharge pipe 2. A part of the sealing cover 3 can block the powder discharge port 211 to close the powder discharge port 211, while another part of the sealing cover 3 is provided with a communication port 331, and the communication port 331 can be communicated with the powder discharge port 211 to open the powder discharge port 211.

[0085] The working principle of the sealing cover 3 and the powder discharge pipe 2 is as follows: As Figure 3As shown, when the sealing cover 3 is in the first position, the sealing cover 3 is sleeved on the first main body portion 21, and a part of the sealing cover 3 seals the powder discharge port 211, that is, this part covers and blocks the powder discharge port 211, so that the powder discharge port 211 is in a closed state and waste powder cannot be discharged. At this time, the communication port 331 of the sealing cover 3 is located on the opposite side of the powder discharge port 211, that is, the communication port 331 is arranged in a dislocation with the powder discharge port 211. As Figures 4 to 7 shown, the sealing cover 3 can rotate relative to the first main body portion 21 and can move along the first main body portion 21 at the same time, that is, the sealing cover 3 can move along a spiral path, so that the communication port 331 moves to a position on the same side as the powder discharge port 211 to prepare for opening the powder discharge port 211. After that, the sealing cover 3 continues to move along the second main body portion 22, that is, the powder discharge pipe 2 continues to move toward the side close to the communication port 331. Since the communication port 331 has been rotated to a position corresponding to the powder discharge port 211 at this time, therefore, as Figure 8 and Figure 9 shown, when the sealing cover 3 moves to the second position, the powder discharge port 211 can communicate with the communication port 331. At this time, the powder discharge port 211 is in an open state, and waste powder can be discharged outward through the powder discharge port 211 and the communication port 331.

[0086] In the above process, the sealing cover 3 can first rotate relative to the first main body portion 21, and then move along the first main body portion 21 and the second main body portion 22 to open the powder discharge port 211; or, the sealing cover 3 can also first move along the first main body portion 21 to a preset position, then rotate relative to the first main body portion 21, and then continue to move along the second main body portion 22 to open the powder discharge port 211, that is, the above two actions of the sealing cover 3 moving axially on the powder discharge pipe 2 and the sealing cover 3 rotating on the powder discharge pipe 2 can be carried out separately.

[0087] In some other embodiments, when the sealing cover 3 is in the first position, the sealing cover 3 blocks the powder discharge port 211, and the powder discharge port 211 is closed. When the sealing cover 3 only needs to rotate relative to the powder discharge pipe 2 to the second position, the communication port 331 can communicate with the powder discharge port 211 to open the powder discharge port 211.

[0088] In some other embodiments, when the sealing cover 3 is in the first position, the sealing cover 3 blocks the powder discharge port 211, and the powder discharge port 211 is closed. When the sealing cover 3 only needs to move axially along the powder discharge pipe 2 to the second position, the communication port 331 can communicate with the powder discharge port 211 to open the powder discharge port 211.

[0089] Currently, in image forming devices such as printers, a waste toner container is usually provided for collecting waste toner. The powder discharge pipe of the imaging component can extend into the waste toner container to discharge waste toner into the waste toner container. Currently, before the powder discharge pipe of the imaging component enters the waste toner container, its powder discharge port is already exposed, which causes waste toner to leak outside the waste toner container and results in waste toner pollution. Compared with the prior art, in the embodiment of the present application, through the cooperation of the sealing cover 3 and the powder discharge pipe 2, the powder discharge port 211 can only be opened when the sealing cover 3 reaches a preset position, reducing the possibility of waste toner leakage, which is beneficial to improving the reliability of the imaging component 1. Among them, the sealing cover 3 can rotate relative to the powder discharge pipe 2, and only by rotating the sealing cover 3 can the communication port 331 be aligned with the powder discharge port 211. This design reduces the possibility that the sealing cover 3 is accidentally touched and moves to directly open the powder discharge port 211, further reducing the possibility of waste toner leakage and pollution. At the same time, the sealing cover 3 can also move axially along the powder discharge pipe 2, that is, in addition to rotation, the sealing cover 3 also needs to move axially along the powder discharge pipe 2 for a certain distance to open the powder discharge port 211. This design reduces the possibility of the powder discharge port 211 being exposed prematurely and further reduces the possibility of waste toner leakage. In summary, the sealing cover 3 in the embodiment of the present application can open the powder discharge port 211 by realizing two actions of rotation and movement. This design improves the reliability of the sealing cover 3, enabling it to open the powder discharge port 211 only at a preset position, thereby reducing the possibility of waste toner leakage, and further being beneficial to improving the overall reliability of the printer and reducing the possibility of other components of the printer or the user's hand being contaminated due to waste toner leakage.

[0090] As Figure 1 and Figure 2 shown, in a possible implementation manner, along the axial direction of the powder discharge pipe 2, a limiting portion 32 is provided on one side of the communication port 331. The limiting portion 32 is used to cooperate with a limiting groove 221 axially opened on the second main body portion 22 along the powder discharge pipe 2. When the sealing cover 3 rotates relative to the first main body portion 21 and can move axially along the powder discharge pipe 2 to the side of the powder discharge pipe 2 where the powder discharge port 211 is located, the limiting portion 32 can extend into the limiting groove 221, and the limiting portion 32 can move along the limiting groove 221 until the powder discharge port 211 is communicated with the communication port 331.

[0091] The limiting groove 221 is formed on the circumferential surface of the second main body 22, and the powder discharge outlet 211 and the limiting groove 221 are arranged on the same side of the powder discharge pipe 2. The limiting portion 32 on the sealing cover 3 can cooperate with the limiting groove 221. The limiting portion 32 can enter the limiting groove 221 and move along the limiting groove 221, so that the whole sealing cover 3 can move along the axial direction of the powder discharge pipe 2. When the sealing cover 3 blocks the powder discharge outlet 211, since the positions of the communication port 331 and the powder discharge outlet 211 are staggered from each other, and the powder discharge outlet 211 and the limiting groove 221 are arranged on the same side, and the communication port 331 and the limiting portion 32 are arranged on the same side, the positions of the limiting groove 221 and the limiting portion 32 are also staggered from each other at this time, and the limiting portion 32 cannot enter the limiting groove 221. Therefore, the sealing cover 3 needs to be rotated to a preset position first, so that the communication port 331 is aligned with the powder discharge outlet 211, that is, the limiting portion 32 is aligned with the limiting groove 221, so that the limiting portion 32 can enter the limiting groove 221 and move along the limiting groove 221. By moving along the limiting groove 221, the sealing cover 3 can change the powder discharge outlet 211 from the closed state to the open state, that is, as the sealing cover 3 moves toward the side close to the second main body 22, the powder discharge outlet 211 can be communicated with the communication port 331 and opened, so that the waste powder can be discharged outward through the powder discharge outlet 211. By providing the limiting portion 32 and the limiting groove 221, the sealing cover 3 can be guided and limited, so that after the sealing cover 3 is rotated to the preset position, the stable movement of the sealing cover 3 along the axial direction of the powder discharge pipe 2 can be realized through the cooperation of the limiting portion 32 and the limiting groove 221, which is beneficial to realizing the opening process of the powder discharge outlet 211 to discharge the waste powder, and is beneficial to the imaging assembly 1 to work stably and reliably.

[0092] As Figure 2 shown, in a possible implementation manner, the sealing cover 3 includes a sealing portion. The sealing portion includes a first sealing portion 311 and a second sealing portion 312 connected to each other. There is a sealing space for accommodating the powder discharge pipe 2 between the first sealing portion 311 and the second sealing portion 312; along the axial direction of the powder discharge pipe 2, the first sealing portion 311 is located between the communication port 331 and the limiting portion 32, and the area of the second sealing portion 312 is larger than the area of the first sealing portion 311.

[0093] The first sealing portion 311 and the second sealing portion 312 can be regarded as the side walls of the sealing cover 3, that is, the first sealing portion 311 and the second sealing portion 312 are connected to each other to enclose a sealing space for blocking the powder discharge outlet 211. Among them, along the axial direction of the powder discharge pipe 2, the size of the first sealing portion 311 is smaller than that of the second sealing portion 312, and at the same time, the area of the first sealing portion 311 is also smaller than the area of the second sealing portion 312. Such a design is beneficial to improving the reliability of the sealing cover 3 and reducing the possibility of waste powder leaking from the sealing cover 3 when the sealing cover 3 blocks the powder discharge outlet 211.

[0094] AsFigure 1 , Figure 2 and Figure 9 As shown in Figure 1 , Figure 2 and Figure 9 , in a possible implementation, the limiting portion 32 includes a first limiting section 321 extending radially along the powder discharge pipe 2 and a second limiting section 322 extending axially along the powder discharge pipe 2. One end of the first limiting section 321 is connected to the first sealing portion 311, and the other end is connected to the second limiting section 322. The second limiting section 322 can extend into the limiting groove 221 and can move along the limiting groove 221 to communicate the powder discharge port 211 with the communication port 331.

[0095] The first limiting section 321 and the second limiting section 322 are connected to form an L-shaped structure, wherein the second limiting section 322 is connected to the first sealing portion 311 through the first limiting section 321. The second limiting section 322 can cooperate with the limiting groove 221 to limit the sealing cover 3, thereby facilitating improving the stability of the axial movement of the sealing cover 3 along the powder discharge pipe 2.

[0096] As Figure 1 , Figure 2 and Figure 7 As shown in Figure 1 , Figure 2 and Figure 7 , in a possible implementation, the second main body portion 22 is provided with a mating groove 222 communicating with the limiting groove 221. The mating groove 222 is located on the side of the limiting groove 221 close to the powder discharge port 211 and is arranged circumferentially along the powder discharge pipe 2. The mating groove 222 is used to receive the second limiting section 322, and the second limiting section 322 can extend into the limiting groove 221 from the mating groove 222. Axially along the powder discharge pipe 2, the side wall of the mating groove 222 on the side away from the limiting groove 221 is used to abut against the first limiting section 321 to limit the position of the sealing cover 3.

[0097] Axially along the powder discharge pipe 2, the mating groove 222 is located between the powder discharge port 211 and the limiting groove 221. When the sealing cover 3 seals the powder discharge port 211, the second limiting section 322 can be received in the mating groove 222, and the first limiting section 321 can abut against the side wall of the mating groove 222 on the side close to the first main body portion 21, thereby limiting the sealing cover 3 to improve the stability of the sealing cover 3 on the powder discharge pipe 2 and reducing the possibility of the sealing cover 3 falling off the powder discharge pipe 2.

[0098] As Figures 3 to 5 As shown in Figures 3 to 5 , in a possible implementation, the powder discharge assembly further includes an elastic member 4. The elastic member 4 is sleeved on the second main body portion 22. One end of the elastic member 4 is connected to the sealing cover 3, and the other end is connected to the drum assembly 11 of the imaging assembly 1. The elastic member 4 is used to drive the sealing cover 3 to move axially along the powder discharge pipe 2.

[0099] The imaging component 1 includes a drum component 11 and a developing component 12. The developing component 12 is located on one side of the drum component 11. The powder discharge pipe 2 can be integrally formed with the drum component 11, or it can be detachably connected to the drum component 11. The elastic member 4 can be a kind of spring, which can reset the sealing cover 3. When the sealing cover 3 moves axially along the powder discharge pipe 2 towards the side close to the second main body portion 22 to open the powder discharge port 211, the elastic member 4 is compressed. When the powder discharge port 211 changes from the open state to the closed state, the sealing cover 3 can move away from the second main body portion 22 under the action of the elastic member 4, so that the limiting portion 32 disengages from the limiting groove 221, and the sealing cover 3 blocks the powder discharge port 211 to close the powder discharge port 211. By providing the elastic member 4, it is beneficial to realize the reset function of the elastic member 4, thereby facilitating the switching of the powder discharge port 211 between the open state and the closed state. The elastic member 4 can timely close the powder discharge port 211, thereby reducing the possibility of waste powder leaking from the powder discharge port 211 and improving the reliability and stability of the imaging component 1 during use.

[0100] As Figure 7 shown, in a possible implementation manner, the powder discharge assembly further includes an elastic member 4. The elastic member 4 is sleeved on the second main body portion 22, and the elastic member 4 can abut against the first limiting section 321.

[0101] The elastic member 4 can be in abutting engagement with the first limiting section 321, so that the elastic member 4 can drive the sealing cover 3 to move axially along the powder discharge pipe 2. At the same time, the first limiting section 321 also plays a limiting role on the elastic member 4, which is beneficial to improving the stability of the connection between the sealing member and the elastic member 4.

[0102] As Figure 1 shown, in a possible implementation manner, the first main body portion 21 is provided with a recessed portion 212. The recessed portion 212 extends radially away from the sealing cover 3 along the powder discharge pipe 2, and the powder discharge port 211 is opened in the recessed portion 212.

[0103] The recessed portion 212 is provided on the circumferential surface of the first main body portion 21, and the area of the recessed portion 212 is larger than the area of the powder discharge port 211. By opening the powder discharge port 211 in the recessed portion 212, it can protect the powder discharge port 211, reducing the possibility of wear or collision due to direct contact between the outer wall of the powder discharge port 211 and the sealing cover 3, and thus being beneficial to extending the service life of the powder discharge port 211 and the powder discharge pipe 2.

[0104] As Figure 1 、 Figure 2 and Figure 9 shown, in a possible implementation manner, along the axial direction of the powder discharge pipe 2, the size of the communication port 331 is larger than the size of the powder discharge port 211.

[0105] By restricting the size of the communication port 331, after the sealing cover 3 rotates to align the limiting portion 32 with the limiting groove 221, it is only necessary to move a certain distance along the limiting groove 221 to achieve the communication between the communication port 331 and the powder discharge port 211, which is conducive to the rapid discharge of waste powder, thereby improving the efficiency of waste powder discharge. At the same time, it also reduces the possibility of blocking the powder discharge port 211 due to the too small size of the communication port 331 and affecting the discharge of waste powder.

[0106] As Figure 1 、 Figure 2 and Figure 9 shown, in a possible implementation manner, along the axial direction of the powder discharge pipe 2, the communication port 331 includes a communication port top wall 331a and a communication port bottom wall 331b. When the communication port 331 is communicated with the powder discharge port 211, the radial end face 2a of the powder discharge pipe 2 is located between the communication port top wall 331a and the communication port bottom wall 331b; or, the radial end face 2a of the powder discharge pipe 2 is flush with the communication port top wall 331a.

[0107] By defining the positional relationship between the powder discharge pipe 2 and the sealing cover 3, the possibility that the end of the powder discharge pipe 2 extends out of the sealing cover 3 is reduced. In this way, the sealing cover 3 plays a certain protective role for the powder discharge pipe 2, reducing the possibility of damage to the powder discharge pipe 2 due to collision with the outside world, which is conducive to extending the service life of the powder discharge pipe 2 to ensure the normal discharge of waste powder.

[0108] As Figure 2 and Figure 10 shown, in a possible implementation manner, the sealing cover 3 is provided with at least one protrusion 34, and the protrusion 34 extends radially away from the powder discharge pipe 2 along the powder discharge pipe 2, and the protrusion 34 is used to cooperate with the waste powder cartridge 5 of the printing device.

[0109] The protrusion 34 can be arranged on the second sealing portion 312 and is located on the side close to the communication port bottom wall 331b. Specifically, two protrusions 34 can be arranged on the sealing cover 3, and the two protrusions 34 are symmetrically arranged. The protrusion 34 can cooperate with the mounting hole 51 of the waste powder cartridge 5 so that waste powder can be discharged into the waste powder cartridge 5 through the powder discharge port 211. The specific cooperation process will be described in detail in the following content.

[0110] The embodiment of the present application also provides an imaging assembly 1. The imaging assembly 1 includes a housing (not shown in the figure) and an imaging member accommodated in the housing. The housing includes an installation area, and the installation area is used to install the powder discharge assembly in any one of the above.

[0111] The imaging assembly 1 has a housing, in which imaging components such as a drum assembly 11 and a developing assembly 12 and the above-mentioned powder discharge assembly can be accommodated. Since the powder discharge assembly has the above-mentioned technical effects, the imaging assembly having the powder discharge assembly also has the above-mentioned technical effects, which will not be elaborated here.

[0112] In a possible implementation manner, the powder discharge pipe 2 is detachably installed on the imaging assembly 1, or the powder discharge pipe 2 is integrally formed with the imaging assembly 1.

[0113] As Figure 10 shown, an embodiment of the present application further provides a waste powder cartridge 5. The waste powder cartridge 5 is detachably installed on a printing device. The waste powder cartridge 5 is used to cooperate with the installation of the above-mentioned imaging assembly 1. The waste powder cartridge 5 is used to apply an external force to the sealing cover 3 so that the sealing cover 3 can rotate relative to the first main body portion 21 and can move axially along the powder discharge pipe 2 to the side where the powder discharge pipe 2 has a powder discharge port 211, and then the sealing cover 3 continues to move axially along the second main body portion 22 until the powder discharge port 211 communicates with the communication port 331.

[0114] The waste powder cartridge 5 serves to collect and store the waste powder discharged by the imaging assembly 1. The powder discharge pipe 2 can extend into the interior of the waste powder cartridge 5 to achieve the discharge of waste powder. By providing the above-mentioned imaging assembly 1, it is beneficial to improve the stability and reliability of the printing device during operation. Since the imaging assembly 1 has the above-mentioned technical effects, the printing device provided with the imaging assembly 1 can also achieve the corresponding technical effects, which will not be elaborated here.

[0115] As Figures 9 to 13 shown, in a possible implementation manner, the waste powder cartridge 5 includes an installation hole 51. At least one guiding groove 511 is formed along the radial direction of the powder discharge pipe 2 on the inner wall of the installation hole 51. The guiding groove 511 can be used to cooperate with at least one protrusion 34 on the sealing cover 3.

[0116] The waste powder cartridge 5 is provided with an installation hole 51, which can cooperate with the sealing cover 3 so that the sealing cover 3 can extend into the installation hole 51 together with the powder discharge pipe 2. Among them, at least one guiding groove 511 is formed along the radial direction of the powder discharge pipe 2 on the inner wall of the installation hole 51. The sealing cover 3 has a protrusion 34, and the protrusion 34 can cooperate with the guiding groove 511. Through the cooperation between the protrusion 34 and the guiding groove 511, it can play a guiding role in the movement of the sealing cover 3, which is beneficial to improving the stability of the movement of the sealing cover 3 and further beneficial to realizing the discharge of waste powder.

[0117] As Figure 12 shown, in a possible implementation manner, the guiding groove 511 extends along the circumferential direction of the installation hole 51 to form a spiral shape.

[0118] Through the cooperation between the convex portion 34 and the guiding groove 511, the rotation of the sealing cover 3 is guided. The specific process is as follows: When the powder discharge pipe 2 is inserted into the waste powder cartridge 5 through the mounting hole 51, the convex portion 34 on the sealing cover 3 can extend into the guiding groove 511. As the waste powder cartridge 5 is pushed closer to the powder discharge pipe 2, under the action of the guiding groove 511, the convex portion 34 will move along the guiding groove 511, that is, the sealing cover 3 will rotate along the spiral path of the guiding groove 511 and move axially along the powder discharge pipe 2. When the convex portion 34 moves to the end of the guiding groove 511, the sealing cover 3 can no longer rotate. At this time, the limiting portion 32 can be aligned with the limiting groove 221, and the communication port 331 also reaches the position where it can communicate with the powder discharge port 211. Among them, by setting the length of the spiral path, the rotation angle of the sealing cover 3 can be restricted. Specifically, the rotation angle of the sealing cover 3 can be 180°. That is, during the process of the convex portion 34 moving from the starting section to the end of the guiding groove 511, the sealing cover 3 rotates 180° relative to the powder discharge pipe 2 to achieve the cooperation between the limiting portion 32 and the limiting groove 221, and between the communication port 331 and the powder discharge port 211. Subsequently, as the waste powder cartridge 5 continues to be pushed forward, the limiting portion 32 can enter the limiting groove 221. Under the action of the limiting groove 221, the sealing cover 3 will move axially along the powder discharge pipe 2 to make the communication port 331 communicate with the powder discharge port 211, thereby realizing the discharge of waste powder, and the waste powder cartridge 5 can be fixed to the main body portion. Correspondingly, when the waste powder cartridge 5 is disassembled from the powder discharge pipe 2, the elastic member 4 can push the sealing cover 3 to move, so that the limiting portion 32 is disengaged from the limiting groove 221. As the waste powder cartridge 5 moves to the side away from the powder discharge port 211, the sealing cover 3 can rotate reversely along the guiding groove 511, so as to disengage from the mounting hole 51, so that the powder discharge pipe 2 is separated from the waste powder cartridge 5.

[0119] As Figures 9 to 13 shown, in a possible implementation manner, at least one avoidance groove 512 is radially formed on the outer wall of the mounting hole 51 along the powder discharge pipe 2. The avoidance groove 512 communicates with the guiding groove 511, and the convex portion 34 can extend into the guiding groove 511 through the avoidance groove 512.

[0120] By providing the avoidance groove 512, it plays an avoidance role for the convex portion 34, so that the convex portion 34 can enter the inside of the mounting hole 51 and cooperate with the guiding groove 511, reducing the possibility of interference between the convex portion 34 and the waste powder cartridge 5, and thus facilitating the cooperation between the sealing cover 3 and the mounting hole 51 to achieve the discharge of waste powder.

[0121] Specifically, two guiding grooves 511 may be formed on the inner wall of the mounting hole 51, and the mounting hole 51 is provided with two avoiding grooves 512. The two avoiding grooves 512 can communicate with the corresponding guiding grooves 511. The sealing cover 3 is provided with two protruding portions 34, and the protruding portions 34 can enter their respective guiding grooves 511 through the corresponding avoiding grooves 512. By providing the two guiding grooves 511, the protruding portions 34 are matched with the corresponding guiding grooves 511, which is beneficial to further improve the stability and reliability of the cooperation between the sealing cover 3 and the mounting hole 51, and thus is beneficial to improve the stability of the movement of the sealing cover 3.

[0122] In a possible implementation manner, the waste powder cartridge 5 includes a waste powder inlet (not shown in the figure) communicating with the mounting hole 51, and the waste powder inlet is used to cooperate with the powder discharge port 211 to collect the waste powder discharged from the imaging component 1.

[0123] Such a design is beneficial to the waste powder cartridge 5 to collect the waste powder, so as to reduce the possibility of the waste powder overflowing from the waste powder cartridge 5.

[0124] The embodiment of the present application further provides an imaging component group, which includes a plurality of the above-mentioned imaging components 1.

[0125] Since the imaging component 1 has the above-mentioned technical effects, the imaging component group composed of the imaging components 1 can also have the corresponding technical effects, which will not be elaborated here.

[0126] The embodiment of the present application further provides a printing device, which includes a main body part (not shown in the figure), a waste powder cartridge 5 and the above-mentioned imaging component 1. Among them, the imaging component 1 is installed on the main body part; alternatively, the printing device includes a main body part, a waste powder cartridge 5 and the above-mentioned imaging component group, and the imaging component group is installed on the main body part.

[0127] Since the imaging component 1 has the above-mentioned technical effects, the printing device provided with the imaging component 1 can also have the corresponding technical effects, which will not be elaborated here.

[0128] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A powder discharging assembly which can be installed on an imaging assembly (1) for discharging the powder in the imaging assembly (1), and the imaging assembly (1) is detachably installed on a printing device, characterized in that, The powder discharge assembly includes: A powder discharge pipe (2), the powder discharge pipe (2) having a first main body portion (21) and a second main body portion (22) along its own axis, the first main body portion (21) being provided with a powder discharge port (211) for discharging powder; A sealing cover (3) disposed on the powder discharge pipe (2) for blocking or opening the powder discharge port (211); Wherein, the sealing cover (3) is provided with a communication port (331) along the radial direction of the powder discharge pipe (2). When the sealing cover (3) is configured to be able to rotate relative to the first main body portion (21) under the action of an external force and at the same time can move axially along the powder discharge pipe (2) to the side of the powder discharge pipe (2) where the powder discharge port (211) is located, and then the sealing cover (3) continues to move axially along the second main body portion (22) until the powder discharge port (211) communicates with the communication port (331).

2. The powder discharge assembly according to claim 1, characterized in that, Axially along the powder discharge pipe (2), a limiting portion (32) is provided on one side of the communication port (331). The limiting portion (32) is used to cooperate with a limiting groove (221) axially opened along the powder discharge pipe (2) on the second main body portion (22). When the sealing cover (3) rotates relative to the first main body portion (21) and at the same time can move axially along the powder discharge pipe (2) to the side of the powder discharge pipe (2) where the powder discharge port (211) is located, the limiting portion (32) can extend into the limiting groove (221), and the limiting portion (32) can move along the limiting groove (221) until the powder discharge port (211) communicates with the communication port (331).

3. The powder discharge assembly according to claim 2, wherein, The sealing cover (3) includes a sealing portion, and the sealing portion includes a connected first sealing portion (311) and a second sealing portion (312). There is a sealing space for accommodating the powder discharge pipe (2) between the first sealing portion (311) and the second sealing portion (312); Axially along the powder discharge pipe (2), the first sealing portion (311) is located between the communication port (331) and the limiting portion (32), and the area of the second sealing portion (312) is larger than the area of the first sealing portion (311).

4. The powder discharge assembly according to claim 3, wherein, The limiting portion (32) includes a first limiting section (321) extending radially along the powder discharge pipe (2) and a second limiting section (322) extending axially along the powder discharge pipe (2). One end of the first limiting section (321) is connected to the first sealing portion (311), and the other end is connected to the second limiting section (322). The second limiting section (322) can extend into the limiting groove (221) and can move along the limiting groove (221) until the powder discharge port (211) communicates with the communication port (331).

5. The powder discharge assembly according to claim 4, wherein The second main body portion (22) is provided with a mating groove (222) communicating with the limiting groove (221). The mating groove (222) is located on a side of the limiting groove (221) close to the powder discharge outlet (211) and is arranged along the circumferential direction of the powder discharge pipe (2). The mating groove (222) is used for receiving the second limiting section (322), and the second limiting section (322) can extend into the limiting groove (221) from the mating groove (222). Along the axial direction of the powder discharge pipe (2), a side wall of the mating groove (222) on a side away from the limiting groove (221) is used for abutting against the first limiting section (321) to limit the position of the sealing cover (3).

6. The powder discharge assembly according to any one of claims 1 to 5, characterized in that The powder discharge assembly further includes an elastic member (4). The elastic member (4) is sleeved on the second main body portion (22). One end of the elastic member (4) is connected to the sealing cover (3), and the other end is connected to the drum assembly (11) of the imaging assembly (1). The elastic member (4) is used for driving the sealing cover (3) to move along the axial direction of the powder discharge pipe (2).

7. The powder discharge assembly according to any one of claims 4 to 5, characterized in that The powder discharge assembly further includes an elastic member (4). The elastic member (4) is sleeved on the second main body portion (22), and the elastic member (4) can abut against the first limiting section (321).

8. The powder discharge assembly according to any one of claims 1 to 7, characterized in that The first main body portion (21) is provided with a recessed portion (212). The recessed portion (212) extends in a direction away from the sealing cover (3) along the radial direction of the powder discharge pipe (2), and the powder discharge outlet (211) is opened in the recessed portion (212).

9. The powder discharge assembly according to any one of claims 1 to 8, characterized in that, Along the axial direction of the powder discharge pipe (2), the size of the communication port (331) is greater than or equal to the size of the powder discharge outlet (211).

10. The powder discharge assembly according to claim 9, characterized in that, Along the axial direction of the powder discharge pipe (2), the communication port (331) includes a communication port top wall (331a) and a communication port bottom wall (331b). When the communication port (331) communicates with the powder discharge outlet (211), the radial end face (2a) of the powder discharge pipe (2) is located between the communication port top wall (331a) and the communication port bottom wall (331b); or, The radial end face (2a) of the powder discharge pipe (2) is flush with the communication port top wall (331a).

11. The powder discharge assembly according to any one of claims 1 to 10, characterized in that, The sealing cover (3) is provided with at least one protruding portion (34). The protruding portion (34) extends in a direction away from the powder discharge pipe (2) along the radial direction of the powder discharge pipe (2), and the protruding portion (34) is used for cooperating with the waste powder cartridge (5) of the printing device.

12. An imaging component, characterized in that, The imaging assembly (1) includes a housing and an imaging member accommodated in the housing. The housing includes an installation area, and the installation area is used for installing the powder discharge assembly according to any one of claims 1 to 11.

13. An imaging component for a printing device, the imaging component (1) being detachably mounted on the printing device, characterized in that, Including: A powder discharge pipe (2). The powder discharge pipe (2) has a first main body portion (21) and a second main body portion (22) along its own axial direction. The first main body portion (21) is provided with a powder discharge outlet (211), and the powder discharge outlet (211) is used for discharging waste powder; A sealing cover (3) is provided on the powder discharge pipe (2) for blocking or opening the powder discharge port (211). The sealing cover (3) can rotate relative to the powder discharge pipe (2) and can move axially along the powder discharge pipe (2). Among them, a communication port (331) is axially provided in the sealing cover (3) along the powder discharge pipe (2). When the sealing cover (3) rotates relative to the first main body portion (21) and can move axially along the powder discharge pipe (2) to the side of the powder discharge pipe (2) where the powder discharge port (211) is located, the sealing cover (3) then continues to move axially along the second main body portion (22) until the powder discharge port (211) communicates with the communication port (331).

14. The imaging component according to claim 13, wherein, Axially along the powder discharge pipe (2), a limiting portion (32) is provided on one side of the communication port (331). The limiting portion (32) is used to cooperate with a limiting groove (221) axially provided in the second main body portion (22) along the powder discharge pipe (2). When the sealing cover (3) rotates relative to the first main body portion (21) and can move axially along the powder discharge pipe (2) to the side of the powder discharge pipe (2) where the powder discharge port (211) is located, the limiting portion (32) can extend into the limiting groove (221), and the limiting portion (32) can move along the limiting groove (221) until the powder discharge port (211) communicates with the communication port (331).

15. The imaging component according to claim 14, wherein The sealing cover includes a sealing portion, and the sealing portion includes a connected first sealing portion (311) and a second sealing portion (312). There is a sealing space for accommodating the powder discharge pipe (2) between the first sealing portion (311) and the second sealing portion (312). Axially along the powder discharge pipe (2), the first sealing portion (311) is located between the communication port (331) and the limiting portion (32), and the area of the second sealing portion (312) is larger than the area of the first sealing portion (311).

16. The imaging component according to claim 15, wherein The limiting portion (32) includes a first limiting section (321) extending radially along the powder discharge pipe (2) and a second limiting section (322) extending axially along the powder discharge pipe (2). One end of the first limiting section (321) is connected to the first sealing portion (311), and the other end is connected to the second limiting section (322). The second limiting section (322) can extend into the limiting groove (221) and can move along the limiting groove (221) until the powder discharge port (211) communicates with the communication port (331).

17. The imaging component according to claim 16, wherein The second main body portion (22) is provided with a mating groove (222) communicating with the limiting groove (221). The mating groove (222) is located on a side of the limiting groove (221) close to the powder discharge outlet (211) and is arranged along the circumferential direction of the powder discharge pipe (2). The mating groove (222) is used for receiving the second limiting section (322), and the second limiting section (322) can extend into the limiting groove (221) from the mating groove (222). Along the axial direction of the powder discharge pipe (2), a side wall of the mating groove (222) on a side away from the limiting groove (221) is used for abutting against the first limiting section (321) to limit the position of the sealing cover (3).

18. The imaging component according to any one of claims 13 to 17, characterized in that, The imaging assembly further includes an elastic member (4). The elastic member (4) is sleeved on the second main body portion (22). One end of the elastic member (4) is connected to the sealing cover (3), and the other end is connected to the drum assembly (11) of the imaging assembly (1). The elastic member (4) is used for driving the sealing cover (3) to move axially along the powder discharge pipe (2).

19. The imaging component according to any one of claims 16 to 17, characterized in that, The imaging assembly further includes an elastic member (4). The elastic member (4) is sleeved on the second main body portion (22), and the elastic member (4) can abut against the first limiting section (321).

20. The imaging component according to any one of claims 13 to 19, characterized in that, The first main body portion (21) is provided with a recessed portion (212). The recessed portion (212) extends radially away from the sealing cover (3) along the powder discharge pipe (2), and the powder discharge outlet (211) is formed in the recessed portion (212).

21. The imaging component according to any one of claims 15 to 20, characterized in that, Along the axial direction of the powder discharge pipe (2), the size of the communication port (331) is larger than the size of the powder discharge outlet (211).

22. The imaging component according to claim 21, wherein Along the axial direction of the powder discharge pipe (2), the communication port (331) includes a communication port top wall (331a) and a communication port bottom wall (331b). When the communication port (331) communicates with the powder discharge outlet (211), the radial end face (2a) of the powder discharge pipe (2) is located between the communication port top wall (331a) and the communication port bottom wall (331b); or, The radial end face (2a) of the powder discharge pipe (2) is flush with the communication port top wall (331a).

23. The imaging assembly according to any one of claims 13 to 22, characterized in that, The sealing cover (3) is provided with at least one protruding portion (34). The protruding portion (34) extends radially away from the powder discharge pipe (2) on a side away from the powder discharge pipe (2), and the protruding portion (34) is used for cooperating with the waste powder cartridge (5) of the printing device.

24. The imaging assembly according to any one of claims 13 to 23, characterized in that The powder discharge pipe (2) is detachably installed on the imaging assembly (1), or the powder discharge pipe (2) is integrally formed with the imaging assembly (1).

25. A waste powder cartridge, characterized in that, The waste toner cartridge (5) is detachably installed in the printing device. The waste toner cartridge (5) is used to cooperate with the installation of the imaging component (1) as described in any one of claims 13 to 24. The waste toner cartridge (5) is used to apply an external force to the sealing cover (3), so that the sealing cover (3) can rotate relative to the first main body portion (21) and can move axially along the powder discharge pipe (2) to the side where the powder discharge pipe (2) has the powder discharge port (211). After that, the sealing cover (3) continues to move axially along the second main body portion (22) until the powder discharge port (211) communicates with the communication port (331).

26. The waste toner cartridge according to claim 25, wherein, The waste toner cartridge (5) includes an installation hole (51). At least one guiding groove (511) is formed in the inner wall of the installation hole (51) along the radial direction of the powder discharge pipe (2). The guiding groove (511) can be used to cooperate with at least one protruding portion (34) on the sealing cover (3).

27. The waste toner cartridge according to claim 26, wherein, The guiding groove (511) extends along the circumferential direction of the installation hole (51) to form a spiral shape.

28. The waste toner cartridge according to claim 26, wherein At least one avoiding groove (512) is formed in the outer wall of the installation hole (51) along the radial direction of the powder discharge pipe (2). The avoiding groove (512) communicates with the guiding groove (511). The protruding portion (34) can extend into the guiding groove (511) through the avoiding groove (512).

29. The waste toner cartridge according to any one of claims 25 to 28, characterized in that, The waste toner cartridge (5) includes a waste toner inlet that communicates with the installation hole (51). The waste toner inlet is used to cooperate with the powder discharge port (211) to collect the waste toner discharged by the imaging component (1).

30. An imaging component group, characterized in that, It includes multiple imaging components (1) as described in claim 12, or multiple imaging components (1) as described in any one of claims 13 to 24.

31. A printing device, characterized in that, It includes: The main body portion; The imaging component (1), the imaging component (1) is installed on the main body portion. The imaging component (1) is the imaging component (1) as described in claim 12, or the imaging component (1) as described in any one of claims 13 to 24, or the imaging component group as described in claim 30, and the waste toner cartridge (5) as described in any one of claims 25 to 28.

Images