CN221149153U - Process cartridge - Google Patents

Abstract

The embodiment of the utility model provides a processing box, and relates to the technical field of printing. The process cartridge includes a housing and a seal; the shell is provided with a developing cavity, a containing cavity and an outlet, the developing cavity and the containing cavity are arranged along the direction intersecting with the length direction of the processing box, and the outlet is communicated with the developing cavity and the containing cavity; the sealing member includes mounting frame and sealing membrane, and the mounting frame has opening and buckle structure, and sealing membrane seals in the opening. The mounting frame through the sealing member is provided with the buckle structure, the buckle structure is connected with the outlet in a clamping way, so that the sealing member can be fixed on the outlet, and further, the situation that the sealing member is not firmly mounted due to oil stains and developer possibly existing between the sealing member and the inner wall of the developing cavity can be avoided, and the sealing member can be used for sealing the outlet, so that the developer cannot leak.

Description

Process cartridge

Technical Field

The utility model relates to the technical field of printing, in particular to a processing box.

Background

A process cartridge for image formation is detachably mounted in an image forming apparatus, the process cartridge including a developing unit including a developing roller and a toner discharging blade, and a drum unit including a photosensitive drum and a charging roller. When the image forming device works, the surface of the photosensitive drum is charged through the charging roller to be full of negative charges, the laser emission unit is used for exposing the photosensitive drum to form an electrostatic latent image on the photosensitive drum, a layer of carbon powder is uniformly distributed on the surface of the developing roller under the control of the powder discharging knife, the carbon powder on the developing roller is transferred onto the photosensitive drum through the electric field force, at the moment, the electrostatic latent image on the surface of the photosensitive drum is changed into a visible carbon powder image, the carbon powder image on the surface of the photosensitive drum is transferred onto paper through the electric field force, and then the image is fixed and discharged, so that the whole image process is completed.

In the related art, the developing unit of the process cartridge includes a housing formed with a developing chamber accommodating the developing roller, an accommodating chamber accommodating the toner and an outlet communicating the developing chamber and the accommodating chamber, and a sealing member mounted on an inner wall of the developing chamber by adhesion to seal the outlet, thereby preventing the process cartridge from leaking out of the outlet during production or transportation of the toner.

However, the manner in which the seal member is mounted on the inner wall of the developing chamber by adhesion easily causes the seal member to be mounted loosely, thereby causing leakage of toner.

Disclosure of utility model

The embodiment of the utility model provides a processing box, which solves the problem that the sealing element is easily arranged in a weak way by being adhered to the inner wall of a developing cavity, so that carbon powder leaks.

The embodiment of the utility model provides a processing box, which comprises a shell and a sealing piece;

The casing extends along the length direction of the processing box, the casing is provided with a developing cavity, a containing cavity and an outlet, the developing cavity and the containing cavity are arranged along the direction intersecting with the length direction of the processing box, the containing cavity is used for containing developer, the developing cavity is used for containing a developing roller, the outlet extends along the length direction of the processing box, and the outlet is communicated with the developing cavity and the containing cavity;

the seal extends along the length direction of the process cartridge, the seal includes a mounting frame having an opening and a snap-in structure, the seal sealing the opening, the snap-in structure configured to snap-in connect with the outlet so that the seal seals the outlet.

In one possible embodiment, the snap feature is at least partially located in the outlet, the snap feature conforming to an inner wall of the outlet.

In one possible implementation manner, the fastening structure includes a fastening portion and a first abutting portion, where the fastening portion is fixedly connected with the first abutting portion, the fastening portion is located in the outlet, the fastening portion is attached to an inner wall of the outlet, and the first abutting portion is attached to a side wall of the outlet located on one side of the developing chamber.

In one possible embodiment, the engagement portion is U-shaped.

In one possible implementation manner, the fastening structure includes a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected with the second connecting plate, the first connecting plate is attached to an inner wall of the outlet, and the second connecting plate is attached to a side wall of the outlet on one side of the accommodating cavity.

In one possible embodiment, the mounting frame includes a frame body, the frame body is attached to a side wall of the outlet on one side of the developing chamber, and the opening is provided in the frame body.

In one possible embodiment, the mounting frame further includes a second abutting portion, the second abutting portion is attached to a side wall of the outlet on one side of the developing chamber, the second abutting portion is connected to the frame and aligned along a longitudinal direction of the process cartridge, and the fastening structure is located between the second abutting portion and the frame.

In one possible embodiment, the number of the snap structures is a plurality.

In one possible embodiment, the sealing film comprises a sealing section and a tearing section connected, the sealing section sealing the opening, the tearing section not sealing the opening.

In one possible implementation manner, the mounting frame comprises a frame body, the frame body is attached to the side wall of the outlet on one side of the developing cavity, the opening is formed in the frame body, and the clamping part is fixedly connected with the frame body;

The buckle structure further comprises a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected with the frame body and the second connecting plate respectively, the first connecting plate is attached to the inner wall of the outlet, and the second connecting plate is attached to the side wall of the outlet on one side of the accommodating cavity.

The embodiment of the utility model provides a processing box, which comprises a shell and a sealing piece; the shell extends along the length direction of the processing box, the shell is provided with a developing cavity, a containing cavity and an outlet, the developing cavity and the containing cavity are arranged along the direction intersecting with the length direction of the processing box, the containing cavity is used for containing developer, the developing cavity is used for containing a developing roller, the outlet extends along the length direction of the processing box, and the outlet is communicated with the developing cavity and the containing cavity; the sealing member extends along the length direction of the process cartridge, and the sealing member includes a mounting frame having an opening and a snap-in structure, the sealing film sealing to the opening, the snap-in structure configured to snap-in connect with the outlet to cause the sealing member to seal the outlet. The mounting frame through the sealing member is provided with the buckle structure, the buckle structure is connected with the outlet in a clamping way, so that the sealing member can be fixed on the outlet, and further, the situation that the sealing member is not firmly mounted due to oil stains and developer possibly existing between the sealing member and the inner wall of the developing cavity can be avoided, and the sealing member can be used for sealing the outlet, so that the developer cannot leak. In addition, set up buckle structure through the installing frame of sealing member, need not consider greasy dirt and developer, and the requirement of manual skill is low in the installation, can make sealing member simple to operate, and the installing frame of sealing member dismantles the back in addition, and the installing frame can directly recycle, can make the recovery recycle degree of difficulty reduce.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic view of a process cartridge according to a first embodiment of the present utility model;

FIG. 2a is a schematic cross-sectional view of the process cartridge of FIG. 1 at a first viewing angle;

FIG. 2b is a schematic cross-sectional view of the process cartridge of FIG. 1 at a second viewing angle;

FIG. 3 is a schematic view of the process cartridge of FIG. 1 with seals removed;

FIG. 4 is a schematic view illustrating an angle of a mounting frame according to a first embodiment of the present utility model;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is another angular schematic view of the mounting frame of FIG. 4;

FIG. 7 is an enlarged schematic view at B in FIG. 6;

FIG. 8 is a partial schematic view of the process cartridge of FIG. 1;

FIG. 9 is a schematic structural view of a sealing film according to a first embodiment of the present utility model;

Fig. 10 is a schematic structural view of a process cartridge according to a second embodiment of the present utility model;

FIG. 11 is a schematic cross-sectional view of the process cartridge of FIG. 10;

FIG. 12 is a schematic view of the process cartridge removal seal of FIG. 10;

FIG. 13 is a schematic view illustrating an angle of a mounting frame according to a second embodiment of the present utility model;

FIG. 14 is another angular schematic view of the mounting frame of FIG. 13;

Fig. 15 is an enlarged schematic view at C in fig. 14.

Reference numerals illustrate:

10-a housing; 101-a developing chamber; 102-a receiving cavity; 103-outlet; 1031-inner walls; 20-a seal; 21-a mounting frame; 2111-engaging portions; 2112-first abutment; 2113-first connection plate; 2114-a second connection plate; 212-a frame; 2121-opening; 2122-dodging port; 213-a second abutment; 22-sealing film; 221-a sealing section; 222-tear-pull segment.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the above description, descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

As described in the background art, the sealing member is easily mounted on the inner wall of the developing chamber by adhesion, so that the toner is leaked. The inventor researches and discovers that the reason for the problem is that the sealing element is installed in an adhesion mode, the adhesion surface needs to be ensured to be clean, and when oil stains and waste powder exist between the sealing element and the inner wall of the developing cavity, the sealing element is not firmly installed, and the sealing element falls off, so that carbon powder leaks. In addition, the sealing element is installed in an adhesive mode, the contact surface of the sealing element and the shell needs to be cleaned, and the requirement on manual skill in the installation process is high, so that the sealing element is inconvenient to install; and the sealing element is installed in an adhesive mode, and when the sealing element is detached, glue is arranged on the installation frame, so that the recycling difficulty of the sealing element is high.

In order to solve the above-described problems, an embodiment of the present utility model provides a process cartridge including a housing and a seal member; the seal includes a mounting frame and a sealing membrane, and the snap-fit structure is configured to snap-fit with the outlet to cause the seal to seal the outlet. The mounting frame through the sealing member is provided with the buckle structure, the buckle structure is connected with the outlet in a clamping way, so that the sealing member can be fixed on the outlet, and further, the situation that the sealing member is not firmly mounted due to oil stains and developer possibly existing between the sealing member and the inner wall of the developing cavity can be avoided, and the sealing member can be used for sealing the outlet, so that the developer cannot leak. In addition, set up buckle structure through the installing frame of sealing member, need not consider greasy dirt and developer, and artificial skill requirement is low in the installation, can make sealing member simple to operate, and the sealing member dismantles the back moreover, and the sealing member can directly recycle, can make recycling the degree of difficulty reduce.

The process cartridge provided by the embodiment of the present utility model will be described in detail with reference to specific embodiments.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a process cartridge including a housing 10 and a seal member 20; the casing 10 extends in the longitudinal direction of the process cartridge, the casing 10 has a developing chamber 101, a housing chamber 102, and an outlet 103, the developing chamber 101 and the housing chamber 102 being arranged in a direction intersecting the longitudinal direction of the process cartridge, the housing chamber 102 being for housing developer, the outlet 103 extending in the longitudinal direction of the process cartridge, the outlet 103 communicating with the developing chamber 101 and the housing chamber 102.

The seal 20 extends along the length of the process cartridge, and the seal 20 includes a mounting frame 21 (see fig. 4) and a sealing membrane 22 (see fig. 9), the mounting frame 21 having an opening 2121 and a snap-fit structure, the sealing membrane 22 sealing against the opening 2121, the snap-fit structure configured to snap-fit with the outlet 103 such that the seal 20 seals the outlet 103.

The length direction of the processing box is the X-axis direction, the width direction of the processing box is the Y-axis direction, the height direction of the processing box is the Z-axis direction, and the X-axis, the Y-axis and the Z-axis are mutually perpendicular.

The process cartridge may be a recycled process cartridge. In other modes, the process cartridge may be an unused process cartridge, and it is understood that the housing chamber 102 of the casing 10 of the process cartridge is filled with the developer for the first time.

The developing chamber 101 may house a developing roller, a toner feeding roller, and both the toner feeding roller and the developing roller. The toner feeding roller is rotatably connected to both sides of the developing chamber 101 in the longitudinal direction of the process cartridge, and the developing roller is rotatably connected to both sides of the developing chamber 101 in the longitudinal direction of the process cartridge. The powder feeding roller is used for conveying developer to the developing roller. The developer accommodated in the accommodating chamber 102 may be toner.

The sealing film 22 may be made of silica gel, plastic or metal film. The sealing film 22 may be fixedly connected to the mounting frame 21 by welding or bonding.

An opening 2121 extends through the mounting frame 21. The sealing film 22 may seal the opening 2121 of the mounting frame 21, that is, the developer in the accommodating chamber 102 cannot leak through the opening 2121 of the mounting frame 21.

The mounting frame 21 can be in snap connection with the outlet 103 of the housing 10 by means of a snap-fit structure, so that the sealing member can be fixed on the outlet 103, and the sealing member 20 can be made to seal the outlet 103.

As shown in fig. 2a, 2b and 3, the fastening structure may be fastened to the inner wall 1031 of the outlet 103, fastened to a side wall of the outlet 103 located on the side of the accommodating chamber 102, and fastened to a side wall of the outlet 103 located on the side of the developing chamber 101. It should be noted that the side wall of the outlet 103 on the side of the accommodating chamber 102 may be understood as a portion of the side wall of the accommodating chamber 102; the side wall of the outlet 103 on the side of the developing chamber 101 may be understood as a portion of the side wall of the developing chamber 101.

The seal 20 seals the outlet 103 when the process cartridge is in production or during transport; when the process cartridge is applied to an image forming apparatus, it is necessary to tear off the sealing film 22 of the sealing member 20, and the developer in the accommodating chamber 102 can be made to enter the developing chamber 101 through the opening 2121. The developer entering the developing chamber 101 is conveyed to the developing roller or conveyed to the developing roller by a toner conveying roller.

According to the processing box provided by the embodiment of the utility model, the mounting frame 21 of the sealing element 20 is provided with the buckling structure, and the buckling structure is in buckling connection with the outlet 103, so that the sealing element 20 can be fixed on the outlet 103, and further, the situation that the sealing element 20 is not firmly mounted due to the fact that oil stains and developer possibly exist between the sealing element 20 and the inner wall of the developing cavity 101 can be avoided, and further, the sealing element 20 can seal the outlet 103, and the developer cannot leak. In addition, set up buckle structure through the installing frame 21 of sealing member 20, need not consider greasy dirt and developer, and the requirement of manual work skill is low in the installation, can make sealing member 20 simple to operate, and after the installing frame 21 of sealing member 20 was dismantled moreover, installing frame 21 can directly recycle, can make sealing member 20 retrieve the reuse degree of difficulty and reduce.

In one possible embodiment, the process cartridge further comprises a doctor blade and drum unit.

Wherein, the powder discharging knife is arranged on the shell 10, the powder discharging knife is positioned near the developing roller, and the powder discharging knife is used for scraping off the excessive developer on the developing roller so as to keep the thickness of the developer adsorbed on the developing roller consistent.

The drum unit includes a photosensitive drum and a charging roller. When the image forming device works, the surface of the photosensitive drum is charged through the charging roller to be full of negative charges, the laser emission unit is used for exposing the photosensitive drum to form an electrostatic latent image on the photosensitive drum, the developer is uniformly distributed on the surface of the developing roller under the control of the powder discharge knife, the developer on the developing roller is transferred onto the photosensitive drum through the electric field force, at the moment, the electrostatic latent image on the surface of the photosensitive drum becomes a visible carbon powder image, the developer image on the surface of the photosensitive drum is transferred onto paper through the electric field force, and then the image is fixed and discharged to complete the whole image process.

In one possible embodiment, the snap features are at least partially located in the outlet 103, the snap features conforming to the inner wall 1031 of the outlet 103 (see also fig. 3). So set up, buckle structure and export shared space can reduce the space that buckle structure took up developing chamber 101 for processing box compact structure.

Wherein the outlet 103 may be a square port.

The snap feature may be located partially in the outlet 103 and partially in the developing chamber 101; the snap-fit structure may also be located partly in the outlet 103 and partly in the receiving chamber 102; the snap feature may also be located only in the outlet 103.

In one possible embodiment, referring to fig. 2a, 4 and 5, the fastening structure includes a fastening portion 2111 and a first abutting portion 2112, the fastening portion 2111 is fixedly connected to the first abutting portion 2112, the fastening portion 2111 is located in the outlet 103, the fastening portion 2111 is attached to the inner wall 1031 of the outlet 103, and the first abutting portion 2112 is attached to a side wall of the outlet 103 located on the developing chamber 101 side. By attaching the first abutting portion 2112 to the side wall of the outlet 103 on the side of the developing chamber 101, the seal member 20 can be prevented from being separated from the outlet 103 in the direction of the accommodating chamber 102, so that the seal member 20 can be stably and reliably mounted on the outlet 103, and the sealing property of the seal member 20 to the outlet 103 is ensured.

The engaging portion 2111 may have a U-shape as shown in fig. 5, a ring shape, or other shapes. As shown in fig. 2a, the engaging portion 2111 may be bonded to the inner wall 1031 of the outlet 103 in the longitudinal direction of the process cartridge. In another embodiment, the engaging portion 2111 may be bonded to the inner wall 1031 of the outlet 103 in the height direction of the process cartridge. The engaging portion 2111 is deformed when pressed. When the fastening structure of the mounting frame 21 is fastened to the outlet 103, the fastening portion 2111 is pressed by the inner wall 1031 of the outlet 103 to deform, so that the fastening portion 2111 has a resilience, and the fastening portion 2111 is pressed against the inner wall 1031 of the outlet 103 by the resilience, so that the mounting frame 21 can be fixed to the outlet 103, and the mounting frame 21 can be firmly mounted.

The shape of the first abutment portion 2112 may be square as shown in fig. 5, semicircular, or other shapes. In some examples, the first abutment 2112 is a square plate.

Illustratively, the number of snap features of the mounting frame 21 is two. When the sealing member 20 is mounted, the sealing member 20 is brought close to the outlet 103 in the width direction of the process cartridge, the engaging portions 2111 of the two snap structures are inserted into the outlet 103, the engaging portions 2111 of the two snap structures are respectively pressed by the inner walls 1031 of the outlet 103 to deform, so that the engaging portions 2111 of the two snap structures have resilient forces, the engaging portions 2111 of the two snap structures are respectively pressed against the inner walls 1031 of the outlet 103 by the resilient forces, and when the first abutting portions 2112 of the two snap structures are abutted against the side wall of the outlet 103 on the side of the developing chamber 101, the pushing of the sealing member 20 is stopped, and at this time, the engaging portions 2111 of the two snap structures are respectively abutted against the inner walls 1031 of the outlet, thereby sealing the outlet 103 by the sealing member 20. When the seal 20 is detached, the first abutment portions 2112 of the two snap structures press the corresponding engaging portions 2111 in opposite directions, and the engaging portions 2111 of the two snap structures are away from the inner wall 1031 of the outlet 103 in the longitudinal direction of the process cartridge, while the seal 20 is pulled out of the outlet 103 in the width direction of the process cartridge.

In this embodiment, the engaging portion 2111 is bonded to the inner wall 1031 of the outlet 103 in the longitudinal direction of the process cartridge. In other embodiments, the engaging portion 2111 may be attached to the inner wall 1031 of the outlet 103 in the height direction of the process cartridge, specifically, a groove may be formed in a side wall of the outlet 103 on the side of the developing chamber 101, and the engaging portion 2111 may be engaged in the groove, thereby sealing the outlet 103 with the seal 20. In this embodiment, the engagement structure includes the first contact portion 2112, and in an embodiment thereof, the engagement structure may be provided with the engagement portion 2111 without providing the first contact portion 2112.

The number of the engaging portions 2111 may be one or plural. In some examples, a portion of the mounting frame 21 is inserted into a slot provided at the outlet 103, and one engagement portion 2111 of the mounting frame 21 is engaged with the outlet 103, so that the sealing member 20 can be fixed to the outlet 103, and the sealing member 20 can be made to seal the outlet 103. In other examples, the mounting frame 21 is engaged with the outlet 103 by the plurality of engaging portions 2111, so that the seal 20 can be fixed to the outlet 103, and the seal 20 can be sealed to the outlet 103.

In one possible embodiment, as shown in fig. 6, 7 and 8, the snap-fit structure includes a first connection plate 2113 and a second connection plate 2114, the second connection plate 2114 being fixedly connected to the first connection plate 2113, the first connection plate 2113 being attached to the inner wall 1031 of the outlet 103, and the second connection plate 2114 being attached to a side wall of the outlet 103 on the side of the receiving cavity 102.

Wherein the second connection plate 2114 is connected to the first connection plate 2113 in an intersecting manner.

The first connection plate 2113 may have a square shape, a trapezoid shape, or other shapes. The shape of the second connection plate 2114 may be square, trapezoid, or other shapes. In some examples, the first connection plate 2113 and the second connection plate 2114 are both square plates.

As shown in fig. 8, the first connection plate 2113 is attached to the inner wall 1031 of the outlet 103 in the height direction of the process cartridge. In another embodiment, the first connection plate 2113 may be attached to the inner wall 1031 of the outlet 103 in the longitudinal direction of the process cartridge.

As illustrated in fig. 4 to 7, the number of the snap structures of the mounting frame 21 is three, specifically, the three snap structures of the mounting frame 21 include two engaging portions 2111, two first abutting portions 2112, one first connection plate 2113, and one second connection plate 2114. When the sealing member 20 is mounted, the sealing member 20 approaches the outlet 103 along the width direction of the process cartridge, the first connection plate 2113 of one fastening structure of the mounting frame 21 can be attached to the inner wall 1031 of the outlet, the second connection plate 2114 can be attached to the side wall of the outlet 103 on the side of the accommodating chamber 102, after that, the engaging portions 2111 of two fastening structures of the mounting frame 21 are pushed into the outlet 103, the engaging portions 2111 of two fastening structures are attached to the inner wall 1031 of the outlet 103 respectively, and the first abutting portions 2112 of two fastening structures are attached to the side wall of the outlet 103 on the side of the developing chamber 101, so that the sealing member 20 seals the outlet 103, and the sealing member 20 is limited in the height direction, so that the sealing member 20 can be prevented from being separated from the outlet 103, and the sealing effect of the sealing member 20 on the outlet 103 is ensured.

It should be noted that the number of the fastening structures of the mounting frame 21 may be one, and specifically, one fastening structure of the mounting frame 21 includes one first connection plate 2113 and one second connection plate 2114. When the sealing member 20 is mounted, the sealing member 20 is brought close to the outlet 103 in the width direction of the cartridge, a part of the mounting frame 21 is inserted into the slot of the outlet 103, the first connecting plate 2113 of one of the snap-fit structures of the mounting frame 21 is fitted to the inner wall 1031 of the outlet, and the second connecting plate 2114 is fitted to the side wall of the outlet 103 on the side of the accommodation chamber 102, so that the sealing member 20 seals the outlet 103. In other embodiments, a first connection plate 2113 and a second connection plate 2114 of a snap-fit structure may cooperate to seal the outlet 103 by the seal 20 through the housing 212 in the embodiments described below.

In one possible embodiment, as shown in fig. 4 to 7, the mounting frame 21 includes a frame 212, the opening 2121 is disposed on the frame 212, and the frame 212 is attached to a side wall of the outlet 103 on the side of the developing chamber 101, so that the sealing member 20 can be stably and reliably mounted on the outlet 103, and tightness of the sealing member 20 against the outlet 103 is ensured.

The frame 212 is fixedly connected with the fastening structure. The frame 212 and the fastening structure may be fixedly connected by integrally forming the frame 212 and the fastening structure.

In some examples, the number of the fastening structures of the mounting frame 21 is three, specifically, the three fastening structures of the mounting frame 21 include two fastening portions 2111, two first abutment portions 2112, one first connection plate 2113 and one second connection plate 2114, the first connection plate 2113 of one fastening structure of the mounting frame 21 is fixedly connected with the frame 212, and the fastening portions 2111 of the two fastening structures of the mounting frame 21 are fixedly connected with the frame 212.

The process cartridge in the second embodiment is different from the process cartridge in the first embodiment in that the mounting frame 21 is added with the second abutting portion 213. The remaining portions of the process cartridge in the second embodiment are the same as those in the first embodiment.

In one possible embodiment, as shown in fig. 10, 11, 12 and 13, the mounting frame 21 further includes a second abutting portion 213, the second abutting portion 213 is attached to a side wall of the outlet 103 on the side of the developing chamber 101, the second abutting portion 213 is connected to the frame 212 and is arranged along the length direction of the process cartridge, and the fastening structure is located between the second abutting portion 213 and the frame 212. The second abutting portion 213 is attached to the side wall of the outlet 103 located on the side of the developing chamber 101, so that the sealing member 20 can be stably and reliably mounted on the outlet 103, and the sealing property of the sealing member 20 to the outlet 103 is ensured.

The second abutment 213 may have a substantially U-shape. In other ways, the shape of the second abutment 213 may also be other shapes, such as a ring shape.

The number of the second contact portions 213 may be one or more. As shown in fig. 13 to 15, the mounting frame 21 includes two second abutting portions 213, the two second abutting portions 213 are located on two sides of the frame 212 in the longitudinal direction of the process cartridge, the second abutting portions 213 and the frame 212 enclose one escape port 2122, the engaging portion 2111 of one fastening structure is connected to the frame 212, and the first abutting portion 2112 of the fastening structure extends into the escape port 2122. In other embodiments, the escape port 2122 may not be provided.

As shown in fig. 14 and 15, the shape of the escape port 2122 may be square, semicircular, or other shapes. In this embodiment, the shape of the relief port 2122 in fig. 15 is square.

The engaging portion 2111 of the engagement structure between the second abutting portion 213 and the housing 212 partially exposes the escape opening 2122, and the first abutting portion 2112, the second abutting portion 213, and the housing 212 may be located in the same plane.

When the sealing member 20 is mounted, the sealing member 20 approaches the outlet 103 along the width direction of the process cartridge, the first connection plate 2113 of one fastening structure of the mounting frame 21 can be attached to the inner wall 1031 (see fig. 12) of the outlet, the second connection plate 2114 can be attached to the side wall of the outlet 103 on the side of the accommodating chamber 102, after that, the engaging portions 2111 of the two fastening structures of the mounting frame 21 are pushed into the outlet 103, the engaging portions 2111 of the two fastening structures are attached to the inner wall 1031 of the outlet, respectively, and the first abutting portion 2112, the second abutting portion 213 and the frame 212 are attached to the side wall of the outlet 103 on the side of the developing chamber 101, so that the sealing member 20 can be mounted on the outlet 103 more stably and reliably, and the sealing property of the sealing member 20 to the outlet 103 is improved.

In one possible embodiment, as shown in fig. 9, sealing film 22 includes a sealing segment 221 and a tear segment 222 that are connected, sealing segment 221 sealing opening 2121, and tear segment 222 not sealing opening 2121.

Wherein the sealing membrane 22 is located on the side of the mounting frame 21 facing away from the outlet 103.

One end of the tearing section 222 is connected with one end of the sealing section 221, and the other end of the tearing section 222 extends out of the outside of the process cartridge. So configured, when the process cartridge is applied to an image forming apparatus, the sealing film 22 of the sealing member 20 can be torn off by the tearing segment 222, so that the developer in the accommodating chamber 102 can be supplied to the developing roller in the developing chamber 101 through the outlet 103.

In one possible embodiment, the projection of the outlet 103 is located within the projection area of the seal 20 in the width direction of the process cartridge. So configured, the seal 20 may be made to seal the outlet 103.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. A process cartridge comprising a housing and a seal member;

The casing extends along the length direction of the processing box, the casing is provided with a developing cavity, a containing cavity and an outlet, the developing cavity and the containing cavity are arranged along the direction intersecting with the length direction of the processing box, the containing cavity is used for containing developer, the developing cavity is used for containing a developing roller, the outlet extends along the length direction of the processing box, and the outlet is communicated with the developing cavity and the containing cavity;

the seal extends along the length direction of the process cartridge, the seal includes a mounting frame having an opening and a snap-in structure, the seal sealing the opening, the snap-in structure configured to snap-in connect with the outlet so that the seal seals the outlet.

2. A cartridge according to claim 1, wherein the catch is at least partially located in the outlet, the catch conforming to an inner wall of the outlet.

3. A process cartridge according to claim 2, wherein said catching structure includes a catching portion fixedly connected with said first abutting portion, said catching portion being located in said outlet, said catching portion being fitted with an inner wall of said outlet, and said first abutting portion being fitted with a side wall of said outlet located on said developing chamber side.

4. A process cartridge according to claim 3, wherein said engaging portion has a U-shape.

5. The process cartridge according to claim 2, wherein the snap structure comprises a first connection plate and a second connection plate, the first connection plate is fixedly connected with the second connection plate, the first connection plate is attached to an inner wall of the outlet, and the second connection plate is attached to a side wall of the outlet on the side of the accommodation chamber.

6. A process cartridge according to any one of claims 1-5, wherein said mounting frame includes a frame body fitted to a side wall of said outlet on a side of said developing chamber, said opening being provided in said frame body.

7. The process cartridge according to claim 6, wherein the mounting frame further includes a second abutting portion which abuts against a side wall of the outlet on the side of the developing chamber, the second abutting portion being connected to the frame body and arranged in a longitudinal direction of the process cartridge, the catching structure being located between the second abutting portion and the frame body.

8. A process cartridge according to any one of claims 1-5, wherein the number of said catching structures is plural.

9. The process cartridge of any one of claims 1 to 5, wherein said sealing film comprises a sealing section and a tearing section connected, said sealing section sealing said opening, said tearing section not sealing said opening.

10. A process cartridge according to claim 3, wherein said mounting frame includes a frame body fitted to a side wall of said outlet on a side of said developing chamber, said opening is provided in said frame body, and said engaging portion is fixedly connected to said frame body;

The buckle structure further comprises a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected with the frame body and the second connecting plate respectively, the first connecting plate is attached to the inner wall of the outlet, and the second connecting plate is attached to the side wall of the outlet on one side of the accommodating cavity.