CN210666347U - Developing box - Google Patents
Developing box Download PDFInfo
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- CN210666347U CN210666347U CN201921672737.2U CN201921672737U CN210666347U CN 210666347 U CN210666347 U CN 210666347U CN 201921672737 U CN201921672737 U CN 201921672737U CN 210666347 U CN210666347 U CN 210666347U
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- photosensitive drum
- developing
- rotating wheel
- developing box
- charging roller
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Abstract
A developing box is also provided with a separating mechanism, wherein the separating mechanism comprises a fixed bracket, a resetting piece and a rotary separating bracket, the resetting piece is arranged in a developing box shell and is abutted against the fixed bracket, and the fixed bracket is connected with the roller end of a charging roller; the rotating separation bracket is provided with a rotating rod and a rotating wheel, the rotating rod protrudes from the rotating wheel along a first direction, the rotating wheel is rotatably connected with the charging roller, the rotating wheel is provided with a protruding part protruding along the direction opposite to the first direction, and the protruding part can be abutted against the photosensitive drum when the rotating wheel rotates; the protective cover is provided with a plugging part, and when the protective cover is installed on the developing box shell, the plugging part can push the rotating rod. The utility model provides a developing box solves current developing box and can have the sensitization drum and charge the roller and extrude each other with depositing under the condition for a long time the transportation to as to influence the sensitization drum and charge the technical problem of the performance of roller, reach the performance of guaranteeing the sensitization drum and charging the roller, and improve laser printer's the technological effect of printing quality.
Description
Technical Field
The utility model relates to a printing consumables's technical field especially relates to a developing box.
Background
A laser printer is a print output device that combines laser scanning technology and electrophotographic technology. In a laser printer, a developing cartridge is detachably mounted, and a core member such as a photosensitive drum, a charging roller, a developing unit, and the like is mounted in the developing cartridge, the charging roller is in contact with the photosensitive drum to uniformly charge the surface of the photosensitive drum to form an electrostatic latent image on the surface of the photosensitive drum, and the developing unit develops the electrostatic latent image formed on the photosensitive drum. The developing box is transported in the process from leaving a factory to selling, the process time from leaving a factory to selling is longer, the outer wall surface of the charging roller is covered with a layer of conductive coating, therefore, under the long-time storage or transportation state, the photosensitive drum and the charging roller are always kept in a contact state, particularly, extrusion force can be generated between the charging roller and the photosensitive drum in the transportation process, so that some indentation marks or other extrusion deformation can be reserved on the outer wall surface of the photosensitive drum and/or the charging roller, the service performance of the photosensitive drum and the charging roller is directly influenced, and the laser printer after the developing box is installed cannot perform normal printing work.
SUMMERY OF THE UTILITY MODEL
The problem that exists to prior art, the utility model provides a developing box solves current developing box and can exist the sensitization drum and charge the roller and extrude each other with depositing under the condition for a long time the transportation to influence the sensitization drum and charge the technical problem of the performance of roller, reach the performance of guaranteeing the sensitization drum and the roller that charges, and improve laser printer's the technological effect of printing quality.
In order to achieve the above object, the present invention provides the following technical solutions:
a developing box comprises a developing box shell, a photosensitive drum and a charging roller, wherein the photosensitive drum and the charging roller are installed in the developing box shell, an electrostatic latent image is formed on the surface of the photosensitive drum, the charging roller is in contact with the photosensitive drum so as to uniformly charge the surface of the photosensitive drum, and the developing box shell is provided with a detachable protective cover for protecting the photosensitive drum; the method is characterized in that: the developing box is also provided with a separating mechanism, the separating mechanism comprises a fixed support, a resetting piece and a rotary separating support, the resetting piece is arranged in the developing box shell and is abutted against the fixed support, and the fixed support is connected with the roller end of the charging roller; the rotating separation support is provided with a rotating rod and a rotating wheel, the rotating rod protrudes from the rotating wheel along a first direction, the rotating wheel is rotatably connected with the charging roller, the rotating wheel is provided with a protruding part protruding along the direction opposite to the first direction, and the protruding part can be abutted to the photosensitive drum when the rotating wheel rotates; the safety cover is equipped with plug portion, works as the safety cover install in when developing the box casing, plug portion can promote the rotary rod.
Further, the rotating rod is provided with a first inclined portion including an inclined surface intersecting the first direction.
Further, the plugging part is provided with a second inclined part matched with the first inclined part.
Further, the reset piece is arranged as an elastic piece.
Further, the elastic member is provided as a spring.
Further, the fixed support is arranged to be a circular ring.
The utility model has the advantages that:
the utility model provides a developing box, it still is equipped with the separating mechanism, the separating mechanism includes fixed bolster, reset piece and rotatory separation support, wherein, reset piece installs in the developing box casing, and the butt fixed bolster, the fixed bolster is connected with the roller end of the charge roller; the rotating separation bracket is provided with a rotating rod and a rotating wheel, the rotating rod protrudes from the rotating wheel along a first direction, the rotating wheel is rotatably connected with the charging roller, the rotating wheel is provided with a protruding part protruding along the direction opposite to the first direction, and the protruding part can be abutted against the photosensitive drum when the rotating wheel rotates; the protective cover is provided with a plugging part, and when the protective cover is installed on the developing box shell, the plugging part can push the rotating rod. According to the technical characteristics, under the condition that the developing box is not used (such as under the conditions of transportation, storage and the like), the protective cover is always arranged on the developing box shell to protect the photosensitive drum of the developing box, at the moment, the inserting and pulling part of the protective cover pushes the rotating rod of the rotating separation bracket downwards, the rotating rod drives the rotating wheel to rotate while rotating, the rotating rod and the protruding part are arranged on two sides of the rotating wheel, namely the rotating separation bracket is equivalent to a lever structure, at the moment, the protruding part rotates upwards to abut against the photosensitive drum and drives the charging roller to leave the photosensitive drum to separate the charging roller from the photosensitive drum to form a gap, and the photosensitive drum and the charging roller are prevented from being extruded with each other; under the use condition of the developing box, the protective cover is only required to be detached from the developing box, at the moment, the plugging part of the protective cover is pulled out and is not contacted with the rotating rod any more, the charging roller returns to the position contacted with the photosensitive drum under the action of the resetting piece, and then the developing box is installed on the laser printer to carry out printing work; therefore, the separation mechanism and the plug-in part are arranged in the protective cover, so that the separation and the contact between the charging roller and the photosensitive drum can be realized in the process of installing and dismantling the protective cover, the design is quite ingenious, and the operation of a user is quite convenient. The utility model provides a developing box solves current developing box and can have the sensitization drum and charge the roller and extrude each other with depositing under the condition for a long time the transportation to as to influence the sensitization drum and charge the technical problem of the performance of roller, reach the performance of guaranteeing the sensitization drum and charging the roller, and improve laser printer's the technological effect of printing quality.
Drawings
Fig. 1 is a partial schematic view of a developing cartridge according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a state where the plugging portion is not plugged in the embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a state in which the plugging portion is inserted in the embodiment of the present invention;
fig. 4 is a schematic diagram of a state in which the plugging portion is pulled out according to an embodiment of the present invention.
In the figure, 10-photosensitive drum, 20-charging roller, 30-protective cover, 31-inserting and extracting portion, 31-1-second inclined portion, 50-separation mechanism, 51-fixed bracket, 52-reset member, 53-rotation separation bracket, 53-1-rotating lever, 53-11-first inclined portion, 53-2-rotating wheel, 53-3-protruding portion
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, fig. 1 is a partial schematic view of a developing cartridge according to an embodiment of the present invention, fig. 2 is a schematic view of a state in which a plugging portion is not inserted in an embodiment of the present invention, fig. 3 is a schematic view of a state in which a plugging portion is inserted in an embodiment of the present invention, and fig. 4 is a schematic view of a state in which a plugging portion is pulled out in an embodiment of the present invention.
The utility model provides a developing box belongs to printing consumables technical field, specifically refer to fig. 1-4, the developing box of this embodiment, including developing box casing, photosensitive drum 10 and charging roller 20 install in developing box casing, charging roller 20 and photosensitive drum 10 contact to make the surface of photosensitive drum 10 evenly charge, form the electrostatic latent image on the surface of photosensitive drum 10, the developing box casing is equipped with detachable safety cover 30, is used for protecting photosensitive drum 10; the developing box is further provided with a separating mechanism 50, the separating mechanism 50 comprises a fixed support 51, a reset piece 52 and a rotating separating support 53, wherein the reset piece 52 is installed in the developing box shell, specifically, the reset piece 52 is set to be an elastic piece such as a spring, one end of the spring is fixedly installed in the developing box shell, the other end of the spring is abutted against the fixed support 51, the fixed support 51 is connected with the roller end of the charging roller 20, specifically, the fixed support 51 is set to be a circular ring or semicircular ring structure, and the fixing mechanism is convenient to be buckled with the roller end of the charging roller 20; the rotation separating bracket 53 is provided with a rotating rod 53-1 and a rotating wheel 53-2, the rotating rod 53-1 protrudes from the rotating wheel 53-2 in a first direction, the rotating wheel 53-2 is rotatably connected with the charging roller 20, that is, the rotating wheel 53-2 can rotate around the charging roller 20 under the driving action, and the rotating wheel 53-2 is provided with a protruding part 53-3 protruding in the opposite direction of the first direction, and the protruding part 53-3 can abut against the peripheral surface of the photosensitive drum 10 during the rotation of the rotating wheel 53-2; the protective cover 30 is provided with a pull-in portion 31, and the pull-in portion 31 pushes the rotating lever 53-1 to swing rotationally when the protective cover 30 is mounted to the developing cartridge casing.
In the present embodiment, by the above-described technical features and with reference to fig. 2 and 3, in the case where the developing cartridge is not used (for example, in the case of transportation and storage, etc.), the protective cover 30 is always mounted on the developing cartridge housing, to protect the photosensitive drum 10 of the developing cartridge, at this time, the inserting and pulling portion 31 of the protecting cover 30 pushes the rotating rod 53-1 of the rotating and separating bracket 53 downwards, the rotating rod 53-1 rotates and drives the rotating wheel 53-2 to rotate, since the rotating lever 53-1 and the boss 53-3 are separately provided on both sides of the rotating wheel 53-2, that is, the rotating-separating bracket 53 corresponds to a lever structure, at this time, the boss 53-3 is rotated upward to abut on the peripheral surface of the photosensitive drum 10, and drives the charging roller 20 away from the photosensitive drum 10, to separate the charging roller 20 and the photosensitive drum 10 to form a gap, and to prevent the photosensitive drum 10 and the charging roller 20 from pressing against each other.
When the developing cartridge is to be used, referring to fig. 4, the protecting cover 30 is detached from the developing cartridge, at this time, the inserting and pulling portion 31 of the protecting cover 30 is pulled out and no longer contacts the rotating rod 53-1, the charging roller 20 returns to the position contacting the photosensitive drum 10 under the action of the returning member 52, and at this time, the developing cartridge is mounted on the laser printer to perform the printing operation.
Therefore, in this embodiment, the separation mechanism 50 and the plug portion 31 are disposed in the protective cover 30, and during the process of mounting and dismounting the protective cover 30, the separation and contact between the charging roller 20 and the photosensitive drum 10 can be realized, the design is quite ingenious, and the operation of a user is quite convenient, specifically, for a developing cartridge under unused conditions such as transportation, the protective cover 30 is mounted on the developing cartridge, the plug portion 31 of the protective cover 30 pushes the rotating separation support 53 to separate the charging roller 20 from the photosensitive drum 10, when the developing cartridge needs to be used, only the protective cover 30 needs to be dismounted, the plug portion 31 is pulled out, the rotating separation support 53 resets to contact the charging roller 20 with the photosensitive drum 10, and the operation is extremely convenient for the user.
In the present embodiment, the rotating rod 53-1 is preferably provided with a first inclined portion 53-11, the first inclined portion 53-11 is provided with an inclined surface intersecting the first direction, that is, the first inclined portion 53-11 is provided with an inclined surface facing the inserting and extracting portion 31, and further preferably, the inserting and extracting portion 31 is provided with a second inclined portion 31-1 matching with the first inclined portion 53-11, and the two inclined portions are provided to guide the insertion of the inserting and extracting portion 31, so as to facilitate the insertion of the inserting and extracting portion 31, and save more labor.
The utility model provides a developing box solves current developing box and can have sensitization drum 10 and the mutual extrusion of roller 20 that charges under long-time transportation and the condition of depositing to as to influence the service performance's of sensitization drum 10 and the roller 20 that charges technical problem, reach the performance of guaranteeing sensitization drum 10 and the roller 20 that charges, and improve laser printer's the technical effect of printing quality.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the solutions should be covered in the scope of the claims of the present invention.
Claims (6)
1. A developing box comprises a developing box shell, a photosensitive drum and a charging roller, wherein the photosensitive drum and the charging roller are installed in the developing box shell, an electrostatic latent image is formed on the surface of the photosensitive drum, the charging roller is in contact with the photosensitive drum so as to uniformly charge the surface of the photosensitive drum, and the developing box shell is provided with a detachable protective cover for protecting the photosensitive drum; the method is characterized in that:
the developing box is also provided with a separating mechanism, the separating mechanism comprises a fixed support, a resetting piece and a rotary separating support, the resetting piece is arranged in the developing box shell and is abutted against the fixed support, and the fixed support is connected with the roller end of the charging roller;
the rotating separation support is provided with a rotating rod and a rotating wheel, the rotating rod protrudes from the rotating wheel along a first direction, the rotating wheel is rotatably connected with the charging roller, the rotating wheel is provided with a protruding part protruding along the direction opposite to the first direction, and the protruding part can be abutted to the photosensitive drum when the rotating wheel rotates;
the safety cover is equipped with plug portion, works as the safety cover install in when developing the box casing, plug portion can promote the rotary rod.
2. A developing cartridge according to claim 1, wherein: the rotating rod is provided with a first inclined portion including an inclined surface intersecting the first direction.
3. A developing cartridge according to claim 2, wherein: the plug-pull part is provided with a second inclined part matched with the first inclined part.
4. A developing cartridge according to claim 3, wherein: the reset piece is arranged as an elastic piece.
5. A developing cartridge according to claim 4, wherein: the elastic member is provided as a spring.
6. A developing cartridge according to claim 5, wherein: the fixed support is arranged to be a circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672737.2U CN210666347U (en) | 2019-10-09 | 2019-10-09 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672737.2U CN210666347U (en) | 2019-10-09 | 2019-10-09 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210666347U true CN210666347U (en) | 2020-06-02 |
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ID=70816753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921672737.2U Active CN210666347U (en) | 2019-10-09 | 2019-10-09 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210666347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111930001A (en) * | 2020-08-24 | 2020-11-13 | 江西凯利德科技有限公司 | Developing box conductive separation structure and developing box using same |
| CN113917809A (en) * | 2021-09-18 | 2022-01-11 | 南京立思辰智能设备有限公司 | Method and device for automatically protecting photosensitive drum |
-
2019
- 2019-10-09 CN CN201921672737.2U patent/CN210666347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111930001A (en) * | 2020-08-24 | 2020-11-13 | 江西凯利德科技有限公司 | Developing box conductive separation structure and developing box using same |
| CN113917809A (en) * | 2021-09-18 | 2022-01-11 | 南京立思辰智能设备有限公司 | Method and device for automatically protecting photosensitive drum |
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