CN213302765U - Developing box - Google Patents

Abstract

The utility model relates to a developing box, detachably install to the image forming device who has the detection part in, developing box includes: a housing in which a developer can be accommodated; a driving force receiving member that receives a driving force output from the image forming apparatus; a detection unit installed at one side of the housing and detected by the detection member; wherein the detection unit is mounted on the same side of the housing as the driving force receiving member; the detection unit is arranged between the shell and the end cover; the detection unit comprises a connecting gear, a rotating assembly and a sliding component; the connecting gear and the rotating assembly are rotatably arranged on the shell, the connecting gear can receive the driving force of the driving force receiving component and rotate, and the connecting gear can be meshed with the rotating assembly to drive the rotating assembly to rotate; the rotating assembly may force the sliding member to slide relative to the end cap to cause the sliding member to contact or disengage the detection component.

Description

Developing box

Technical Field

The utility model relates to an electronic imaging field especially relates to a developing box.

Background

In image forming apparatuses (printers, copiers, facsimile machines, etc.) of the related art, a developing cartridge is widely used, which includes a counting mechanism, and is detachably mounted to the image forming apparatus, and by interaction of an information detecting mechanism of the image forming apparatus and the counting mechanism on the developing cartridge, detection of whether the developing cartridge mounted to the image forming apparatus is a new developing cartridge is achieved, thereby determining the life of the developing cartridge.

The counting mechanism of present developing box all adopts the detection gear that has scarce tooth portion to be used for detecting whether developing box is new, in the testing process, the tooth portion that detects the gear meshes with drive gear, it follows drive gear rotation and accomplishes the detection to detect the gear, when detecting and accomplishing, the scarce tooth portion that detects the gear is relative with drive gear, it breaks away from the meshing to detect the gear and drive gear, it no longer follows drive gear rotation to detect the gear, the detection gear that has scarce tooth portion makes and the installation accuracy requirement is high, and because developing box's detection gear includes scarce tooth portion, consequently the condition that transmission is unstable or became invalid can take place in the use, will directly lead to detecting like this and protruding can not be effectively and the touching of printer sensor, thereby cause the erroneous judgement. On the other hand, in the process of reusing the developing box, the end cover of the developing box needs to be detached, the detection mechanism is reset, and the developing box can be reused, so that the recovery efficiency is directly influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a developing box, it is complicated to aim at solving the detection gear structure that exists among the traditional technical scheme, and it is high to make and installation accuracy requirement, moreover because developing box's detection gear includes scarce tooth portion, consequently the condition that the transmission is unstable or became invalid can take place in the use, will directly lead to detecting like this and protruding can not be effectively touching with printer sensor to cause the erroneous judgement, and influence the problem of recovery efficiency.

In order to solve the above problems, the present invention is realized by the following technical solution:

a developing cartridge detachably mountable to an image forming apparatus having a detecting member, comprising:

a housing in which a developer can be accommodated;

a driving force receiving member that receives a driving force output by the image forming apparatus;

a detection unit installed at one side of the housing and detected by the detection part; wherein the detection unit is mounted on the same side of the housing as the driving force receiving member;

the detection unit is arranged between the shell and the end cover;

the detection unit comprises a connecting gear, a rotating assembly and a sliding component; the connecting gear and the rotating assembly are rotatably mounted on the housing, the connecting gear can receive the driving force of the driving force receiving member and rotate, and the connecting gear can be meshed with the rotating assembly to drive the rotating assembly to rotate;

the rotating assembly may force the sliding member to slide relative to the end cap to cause the sliding member to contact or disengage the detection component.

Further, a first elastic member is included, the first elastic member being installed between the connecting gear and the rotating assembly, the first elastic member being for urging the rotating assembly to engage or disengage the connecting gear and the rotating assembly.

Further, the detection device further comprises a second elastic member, wherein the second elastic member is installed between the end cover and the sliding member, and the second elastic member is used for generating force for forcing the sliding member to contact the detection part.

Further, the rotating assembly includes a cover member, a third elastic member, and a toggle; the third elastic member is arranged between the cover member and the toggle piece, and the toggle piece is positioned between the connecting gear and the cover member and can stretch along the rotating axis of the connecting gear so as to enable the toggle piece to be meshed with or separated from the connecting gear.

Further, the connecting gear is provided with a discoid fluted disc, an extension post that extends from the fluted disc is kept away from the casing and a first meshing portion that forms from the fluted disc extends in the left-right direction, the rotating assembly sets up on the extension post, first meshing portion can with the rotating assembly meshing.

Further, the sliding member includes a sliding groove, the end cover is provided with a sliding rail, the sliding rail is arranged in the sliding groove, and the sliding groove can move along the sliding rail so that the sliding member slides relative to the end cover.

Further, the toggle member includes a body portion 3231 and a protrusion extending from the body portion for abutting against the slide member to move the slide member for detection by the detection member.

Further, the main body part is provided with a first notch and a second notch, the first notch and the second notch are both formed by being concavely arranged from the outer peripheral surface of the main body part towards the rotating shaft, the cover member is provided with a first protruding part and a second protruding part, the first protruding part and the second protruding part are both formed by protruding from the inner peripheral surface of the cover member towards the rotating shaft, the first protruding part is matched with the first notch, and the second protruding part is matched with the second notch.

Further, the sliding member includes a contact end and an activation end, the second elastic member is disposed between the activation end and the housing, and the activation end is configured to contact with the rotating component, so that the contact end is movably contacted with or separated from the detection component.

Further, the detection unit further comprises an idler wheel, the idler wheel receives the driving force and rotates along with the driving force receiving component, and the idler wheel is meshed with the connecting gear and drives the connecting gear to rotate.

Above-mentioned the utility model discloses developing box's technical scheme, detecting element accomplish the count after, rotating member because first elastic component compel to push away and connecting gear break away from the meshing, connecting gear continues rotatoryly under drive gear's drive power effect, but the unable transmission of drive power to rotating member of count gear for rotating member can't touch sliding member, and developing box's job stabilization nature can effectively be guaranteed. When the developing box is recycled, only the initial position of the rotating assembly needs to be readjusted by using external force, and the end cover of the developing box does not need to be detached, so that the recycling efficiency is effectively improved, and the recycling cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a combination of a developing cartridge provided by the present invention;

fig. 2 is an exploded schematic view of one side of a developing cartridge provided by the present invention;

fig. 3 is an exploded view of another angle of one side of the developing cartridge provided by the present invention;

fig. 4 is an exploded schematic view of a detecting unit of the developing cartridge provided by the present invention;

fig. 5 is an exploded schematic view of a rotation member of a developing cartridge provided by the present invention;

fig. 6 is another exploded schematic view of the rotation assembly of the developing cartridge provided by the present invention;

fig. 7 is a partially assembled schematic view of a developing cartridge provided by the present invention;

fig. 8 is a schematic view of a cover member of the developing cartridge provided by the present invention;

fig. 9 is a schematic view of a toggle member of the developing cartridge provided by the present invention;

fig. 10 is a schematic view of a combination of a sliding member and a second elastic member of the developing cartridge provided by the present invention;

fig. 11 is a front view of a driving end of a developing cartridge provided by the present invention;

fig. 12 is an assembly schematic view of a sliding member of the developing cartridge provided by the present invention;

fig. 13 is a partial schematic view of a detecting unit of the developing cartridge provided by the present invention;

fig. 14 is a left side view of the detecting unit of the developing cartridge provided by the present invention at an initial position;

fig. 15 is a left side view of the detecting unit of the developing cartridge provided by the present invention at an angular position;

FIG. 16 is a left side view of the detecting unit of the developing cartridge of the present invention at the end start position

Fig. 17 is an exploded schematic view of one side of a developing cartridge provided in the second embodiment of the present invention;

fig. 18 is a view showing the detecting unit of the developing cartridge according to the second embodiment of the present invention at the initial position;

fig. 19 is a schematic perspective view of a sliding member of a developing cartridge according to a second embodiment of the present invention;

fig. 20 is a schematic view of an installation structure of a sliding member of a developing cartridge according to a second embodiment of the present invention;

fig. 21 is a left side view of the detecting unit of the developing cartridge according to the second embodiment of the present invention at an angular position;

fig. 22 is a left side view of the detecting unit of the developing cartridge of the second embodiment of the present invention at the termination start position.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, the developing roller 2 is located at the front end portion of the casing 1 in the front-rear direction, the handle 5 is located at the rear end portion of the casing 1 in the front-rear direction, and the direction intersecting the left-right direction and the front-rear direction is the up-down direction.

Example one

As shown in fig. 1 and 2, the developing cartridge of the present invention, which is mountable to an electrophotographic image forming apparatus having a detecting unit 3, includes a housing 1 configured to accommodate developer therein; a powder feeding roller 7, located inside the casing 1, for supplying the developer contained inside the casing 1 to the developing roller 2; a developing roller 2 rotatable about a developing roller axis extending in the left-right direction, the developing roller 2 being located at least partially outside the casing 1, the developing roller 2 being located at a front end portion of the casing 1 in the front-rear direction; an agitation frame 4 located inside the casing 1, the agitation frame 4 being capable of rotating about an axis extending in the left-right direction while being capable of agitating the developer contained inside the casing 1; a handle 5 for facilitating the user to put and take the developing cartridge, the handle 5 being provided at the rear end portion of the casing 1 in the front-rear direction.

As shown in fig. 1 and 2, the developing cartridge further includes a driving end that depends on gear transmission to receive driving force for driving components in the developing cartridge to work, the driving end is located at the left end of the casing 1 in the left-right direction, and the driving end includes: the developing roller gear 6 is matched with the developing roller 2 and drives the developing roller 2 to rotate; the powder feeding roller gear 7 is matched with the powder feeding roller and drives the powder feeding roller to rotate; a drive gear 8 which is engaged with the developing roller gear 6, the powder feeding roller gear 7, and the transmission gear 9 and which can receive a drive force transmitted from the electrophotographic image forming apparatus to drive the developing roller gear 6, the powder feeding roller gear 7, and the transmission gear 9 to rotate; the drive gear 8 rotates on a first axis extending in the left-right direction; the transmission gear 9 is also meshed with the stirring rack gear 10 and can drive the stirring rack gear 10 to rotate; the stirring frame gear 10 is matched with the stirring frame 4 and drives the stirring frame 4 to rotate around a second axis; and an end cover 11 provided on the left end of the housing 1 so as to cover the developing roller gear 6, the powder feed roller gear 7, the drive gear 8, the transfer gear 9, and the agitator gear 10.

As shown in fig. 3, 4 and 5, the driving end further includes a detection unit 3 capable of touching a detection part in the image forming apparatus of the electronic camera, and the detection unit 3 can receive the driving force transmitted by the driving gear 8 and be detected by the image forming apparatus. The detection unit 3 includes a connection gear 31, a rotation member 32, a first elastic member 33, a second elastic member 34, and a slide member 35.

The connecting gear 31 is engaged with the agitator gear 10 and rotates with the rotation of the agitator gear 10, and the connecting gear 31 is provided with a disk-shaped toothed disk 311, a columnar fixing portion 312 extending from the toothed disk 311 toward the housing 1 in the left-right direction, an extending column 313 extending from the toothed disk 311 away from the housing 1 in the left-right direction, and a first engaging portion 314 extending from the toothed disk 311. The columnar fixing portion 312 is fixed to the driving end of the housing 1, and the outer peripheral surface of the toothed disc 311 of the connecting gear 31 is provided with a plurality of gear teeth.

The rotating assembly 32 is disposed on the extending column 313, and the rotating assembly 32 includes a cover member 321, a third elastic member 322 and a toggle piece 323. The end cap 11 is provided with a first opening 111, the cover member 321 is exposed from the first opening 111 to the surface of the end cap 11, the end of the extending column 313 is exposed from the first opening 111 to the surface of the end cap 11, and the fixing member is fixed to the end of the extending column 313, so that the rotating assembly 32 and the first elastic member 33 are limited between the connecting gear 31 and the fixing member, and the connecting gear 31, the rotating assembly 32 and the first elastic member 33 are combined together, thereby facilitating the assembly installation of the detection unit 3 and the resetting of the detection unit 3. In this embodiment, the fixing member is a screw, the shifting member 323 is sleeved on the extending column 313, the shifting member 323 is provided with a second engaging portion 3233, the second engaging portion 3233 can engage with the first engaging portion 314, so that the shifting member 323 can rotate along with the connecting gear 31, specifically, the first engaging portion 314 comprises a plurality of retaining grooves, the second engaging portion 3233 comprises a plurality of retaining bosses, the retaining bosses are configured as right trapezoid extending in the left-right direction, the retaining grooves are matched with the retaining bosses, when the first engaging portion 314 is engaged with the second engaging portion 3233, the retaining bosses of the second engaging portion 3233 are engaged with one of the retaining grooves of the first engaging portion 314, when the connecting gear 31 rotates the shifting member 323 in the first detecting direction, the retaining grooves retain the retaining bosses in an engaged state, when the shifting member 323 rotates in the first detecting direction, the inclined surface of the detent groove guides the inclined surface of the detent boss opposite to the inclined surface, so that the toggle element 323 compresses the third elastic member 322 to generate displacement moving away from the housing 1, the detent boss is separated from the currently engaged detent groove and continuously rotates into the next detent groove, and thus the rotating assembly 32 can rotate relative to the connecting gear 31 in the detection direction while the connecting gear 31 is kept in a non-rotating state.

As shown in fig. 6, the driver 323 further includes a main body portion 3231 and a protruding portion 3232 extending from the main body portion 3231, in the present embodiment, the protruding portion 3232 is configured as an arc extending from the driver 323 to the housing 1 in the left-right direction, and the protruding portion 3232 is configured to abut against the sliding member 35, and to force the sliding member 35 to move so as to be detected by the image forming apparatus. The third elastic member 322 is disposed between the cover member 321 and the toggle member 323, the main body portion 3231 is disposed with a first notch 3234 and a second notch 3235, the first notch 3234 and the second notch 3235 are both formed by recessing the outer peripheral surface of the main body portion 3231 toward the rotation axis, correspondingly, the cover member 321 is disposed with a first protrusion 3211 and a second protrusion 3212, the first protrusion 3211 and the second protrusion 3212 are both formed by recessing the inner peripheral surface of the cover member 321 toward the rotation axis, the first protrusion 3211 is matched with the first notch 3234, the second protrusion 3212 is matched with the second notch 3235, the cover member 321 partially covers the outer side of the main body of the toggle member 323, so that the cover member 321 can move relative to the toggle member 323 using the first notch 3234 and the second notch 3235 as guide rails, and the third elastic member 322 is used for limiting the relative movement between the cover member 321 and the toggle member 323. The first notch 3234 and the second notch 3235 have different sizes, so that a fool-proof structure is formed, assembly between the cover member 321 and the toggle element 323 is facilitated, and assembly errors of the cover member 321 and the toggle element 323 are prevented. As shown in fig. 8 and 9, the cover member 321 further includes a third protrusion 3213 and a fourth protrusion 3214, the third protrusion 3213 and the fourth protrusion 3214 are both formed by extending outward from the outer peripheral surface of the cover member 321, correspondingly, the first opening 111 of the end cap 11 is recessed to form a third notch 113 and a fourth notch 114, the third protrusion 3213 can be matched with the third notch 113, the fourth protrusion 3214 can be matched with the fourth notch 114, and when the third protrusion 3213 enters the third notch 113 and the fourth protrusion 3214 enters the fourth notch 114, the cover member 321 protrudes from the surface of the end cap 11. The dimensions of the third protrusion 3213 and the fourth protrusion 3214 are different, forming a foolproof structure, preventing the lid member 321 from being mistaken in the detection process (before the end position), causing the third protrusion 3213 to enter the fourth notch 114 and the fourth protrusion 3214 to enter the third notch 113, and interrupting the detection or detecting the error.

It is understood that the elastic coefficient of the first elastic member 33 is the same as that of the third elastic member 322. In the present embodiment, the first elastic member 33 and the third elastic member 322 are configured as the same compression spring, and when the first elastic member 33 and the third elastic member 322 are simultaneously in the compressed state, since the elastic coefficient of the first elastic member 33 and the elastic coefficient of the third elastic member 322 are the same, the toggle piece 323 located between the first elastic member 33 and the third elastic member 322 is approximately positioned at the middle position of the first elastic member 33 and the third elastic member 322, and thus the displacement of the toggle piece 323 can be controlled by controlling the compression amount of the first elastic member 33 and the third elastic member 322 to engage the second engagement portion 3233 of the toggle piece 323 with the first engagement portion 314 of the connecting gear 31, which facilitates the structural design.

The end cap 11 is provided with a second opening 112, the sliding member 35 is movably disposed in the second opening 112, a portion of the sliding member 35 can extend out of the second opening 112 or retract into the second opening 112, the sliding member 35 includes a sliding slot, the end cap 11 is provided with a sliding rail, the sliding rail is disposed in the sliding slot, the sliding slot can move along the sliding rail to enable the sliding member to slide relative to the end cap 11, specifically, as shown in fig. 12, the sliding rail includes a first sliding rail 115 and a second sliding rail 116, the sliding slot includes a first sliding slot 354 and a second sliding slot 355, the first sliding rail 115 is mounted in the first sliding slot 354, and the second sliding rail 116 is mounted in the second sliding slot 355. As shown in fig. 10, the sliding member 35 includes a triggering end 351 and a contact end 352, the contact end 352 can extend out of the second opening 112 to be disengaged from the detection lever of the image forming apparatus, and the triggering end 351 is used for contacting with the rotating assembly 32, specifically, when the triggering end 351 is contacted with the protruding portion 3232 of the toggle piece 323, the second elastic member 34 applies a biasing force to the toggle piece 323 through the sliding member 35 to keep the sliding member 35 in contact with the protruding portion 3232. The end cap 11 is further provided with a fixed shaft 117, the second elastic member 34 is mounted on the fixed shaft 117, the sliding member 35 further comprises an abutment projection 353, one end of the second elastic member 34 abuts against an inner side wall of the end cap 11, the other end of the second elastic member 34 abuts against the abutment projection 353, when the protrusion 3232 abuts against the sliding member 35 and forces the sliding member 35 to slide relative to the end cap 11 along the slide rail, the second elastic member 34 is compressed, the second elastic member 34 generates a biasing force, and when the protrusion 3232 is out of contact with the sliding member 35, the second elastic member 34 is restored, and the biasing force forces the sliding member 35 to return to the initial position. In the present embodiment, the second elastic member 34 is configured as a torsion spring, and it is understood that the second elastic member 34 is not limited to the torsion spring, but may be a spring, an elastic pick, or the like that keeps the slide member 35 in contact with the protruding portion 3232.

Further, as shown in fig. 8, the cover member 321 further includes a force-receiving portion protruding from the surface of the cover member 321 in the left-right direction on the surface of the end cap 11 for receiving an external force to make the cover member 321 drive the toggle element 323 to rotate, which is beneficial to the resetting of the detection unit 3. In addition, the surface of the end cover 11 is provided with an indication bump for indicating an initial position of the detection unit 3, specifically, the force-receiving portion includes a first force-receiving portion 3215 and a second force-receiving portion 3216 which are oppositely disposed, wherein an indication mark is disposed on the first force-receiving portion 3215, and when the indication mark points to the indication bump, the detection unit 3 is located at the initial position.

The following describes in detail the operation of the detecting unit 3 of the developing cartridge according to the present invention when the developing cartridge is mounted in the electrophotographic image forming apparatus according to fig. 11 to 17.

When the developing cartridge is mounted in the electrophotographic image forming apparatus, the detecting unit 3 is located at the initial position, the protruding portion 3232 of the toggle member 323 does not abut against the trigger end 351 of the slide member 35, the contact end 352 of the slide member 35 retracts into the second opening 112 to abut against the detection lever of the image forming apparatus and is detected by the image forming apparatus, at this time, the third protruding portion 3213 of the cover member 321 and the third notch 113 of the end cap 11 are misaligned, the fourth protruding portion 3214 of the cover member 321 and the fourth notch 114 of the end cap 11 are misaligned, the cover member 321 urges the toggle member 323 to move toward the housing 1 by the third elastic member 322, the first elastic member 33 is compressed, and the first engaging portion 314 of the connecting gear 31 and the second engaging portion 3233 of the toggle member 323 are engaged; when the driving gear 8 receives the driving force to rotate around the first axis, the driving gear 8 drives the transmission gear 9 to rotate so as to drive the stirring rack gear 10 to rotate, the stirring rack gear 10 drives the connecting gear 31 engaged with the stirring rack gear 10 to rotate, the connecting gear 31 drives the shifting piece 323 to rotate, after the stirring rack gear rotates for a preset angle, the protruding portion 3232 of the shifting piece 323 abuts against the trigger end 351 of the sliding member 35, the sliding member 35 slides along the sliding rail so that the contact end 352 extends out of the second opening 112 and is separated from contact with the detection rod of the image forming apparatus, the connecting gear 31 drives the shifting piece 323 to continue rotating, the shifting piece 323 continues rotating, the trigger end 351 of the sliding member 35 abuts against the outer periphery of the protruding portion 3232, the contact end 352 of the sliding member 35 keeps separated from the detection rod of the image forming apparatus, the connecting gear 31 drives the shifting piece 323 to continue rotating, the trigger end 351 is separated from contact with the protruding portion 3232, the torsion spring urges the The image forming apparatus detects again, after rotating a certain angle, the rotating assembly 32 moves away from the housing 1 due to the urging of the first elastic member 33, the third protrusion 3213 enters the third notch 113, the fourth protrusion 3214 enters the fourth notch 114, the first engaging portion 314 of the connecting gear 31 and the second engaging portion 3233 of the toggle member 323 disengage, at this time, the detecting unit 3 rotates to the end position, the stirring frame 4 only drives the connecting gear 31 to rotate, the rotating assembly 32 does not rotate along with the connecting gear 31, and the contact end 352 of the sliding member 35 keeps abutting against the detecting rod of the image forming apparatus, thereby completing the detection.

The sliding member 35 is kept at the end position after completion of the detection, the first engaging portion 314 of the connecting gear 31 and the second engaging portion 3233 of the toggle member 323 are disengaged and kept in the disengaged state, the rotary member 32 cannot rotate following the connecting gear 31, the detecting unit 3 is always in the detection completion state, the developing cartridge becomes old from new and cannot be recognized as a new developing cartridge by the image forming apparatus, and when the developing cartridge completes the test or the toner adding operation, the detecting unit 3 needs to be reset to the initial position. In this embodiment, an external force is applied to the cover member 321 to move the cover member 321 toward the housing 1, so that the third protrusion 3213 is disengaged from the third notch 113, the fourth protrusion 3214 is disengaged from the fourth notch 114, and at the same time, the cover member 321 pushes the toggle member 323 through the third elastic member 322 to move the toggle member 323 toward the housing 1, so that the first engaging portion 314 and the second engaging portion 3233 are engaged, and then, the external force is applied to the force-receiving portion to rotate the cover member 321, so that the cover member 321 drives the toggle member 323 to rotate together, at this time, the connecting gear 31 does not rotate, so that the cover member 321 drives the rotating assembly 32 to rotate relative to the connecting gear 31 in the first detection direction, when the indication mark of the first force-receiving portion 3215 points to the indication bump, the rotation is stopped, and at this time, the detection unit 3 is located at the initial position, and the detection unit 3 can receive the driving force of. The reset process does not need to remove the side cover of the developing box, and the detection gear does not need to be rotated, so that the reset is simple and convenient.

The utility model discloses developing box, detecting element accomplish the count after, the rotating member because first elastic component compel to push away with connecting gear disengagement, connecting gear continues the rotation under drive gear's drive power effect, but the unable transmission of drive power to rotating member of count gear for the rotating member can't touch the sliding member, and developing box's job stabilization nature can effectively be guaranteed. When the developing box is recycled, the initial position of the rotating assembly is only required to be readjusted by using external force, the end cover of the developing box is not required to be detached, the resetting is simple and convenient, the recovery efficiency is effectively improved, and the recovery cost is reduced.

Example two

Next, as shown in fig. 17 and 18, the second embodiment of the present invention is different from the first embodiment in that the structure of the detecting unit for transmitting the driving force is different. In this embodiment, the detection unit includes a connection gear 41, a rotation member 42, a first elastic member 43, a second elastic member 44, a slide member 45, and an idler gear 46. Compared with the first embodiment, in the second embodiment, the idler gear 46 is added between the stirring rack gear 10 and the connecting gear 41, so that the rotating direction of the connecting gear 41 is changed, and the connecting gear 41 rotates in the second detection direction, that is, the second detection direction in the present embodiment is opposite to the rotating direction of the first detection direction in the first embodiment. The idler pulley 46 is mounted on the end cap 11, and the end cap 11 is provided with a fixing post extending from the end cap 11 towards the housing 1, on which fixing post the idler pulley 46 is rotatably mounted.

As shown in fig. 18 and 20, the end cap 11 is provided with a second opening 112, the sliding member 45 is movably disposed in the second opening 112, a portion of the sliding member 45 can extend out of the second opening 112 or retract into the second opening 112, the sliding member 45 includes a sliding slot 463, the end cap 11 is provided with a sliding rail 113, the sliding rail 113 is disposed in the sliding slot 463, and the sliding slot 463 can move along the sliding rail 113 to slide the sliding member 45 relative to the housing. The sliding member 45 includes a contact end 452 and an activation end 451, the contact end 452 can extend out of the second opening 112 to be disengaged from the detection lever of the image forming apparatus, and the activation end 451 is used for contacting with the rotating assembly 42, specifically, when the activation end 451 contacts with the protrusion 4232 of the toggle member 423, the second elastic member 44 applies a biasing force to the toggle member 423 through the sliding member 45 to keep the sliding member 45 in contact with the protrusion 4232. The end cap 11 is further provided with a fixed shaft 114, the sliding member 45 further comprises a fixed lug 454, one end of the second elastic member 44 is fixed to the fixed shaft 114 of the end cap 11, the other end of the second elastic member 44 is fixed to the fixed lug 454, when the protrusion 4232 abuts against the sliding member 45 and forces the sliding member 45 to slide along the sliding rail 113 relative to the end cap 11, the second elastic member 44 is stretched to restore the second elastic member 44, and the stretching force forces the sliding member 45 to return to the initial position. In the present embodiment, the second elastic member 44 is configured as an extension spring, and it is understood that the second elastic member 44 is not limited to the extension spring, but may be a torsion spring, an elastic pick, or the like that keeps the slide member 45 in contact with the projection 4232.

As shown in fig. 21 and 22, when the developing cartridge is mounted in the electrophotographic image forming apparatus, the detecting unit 3 is located at the initial position, the protruding portion 4232 of the toggle member 423 does not abut against the trigger end 451 of the slide member 45, the contact end 452 of the slide member 45 is located at the initial position and abuts against the detection lever of the image forming apparatus to be detected by the image forming apparatus, at this time, the third protruding portion 3213 of the cover member 321 and the third notch 113 of the end cap 11 are misaligned, the fourth protruding portion 3214 of the cover member 321 and the fourth notch 114 of the end cap 11 are misaligned, the cover member 321 urges the toggle member 423 to move toward the housing 1 through the third elastic member 322, the first elastic member 43 is compressed, and the first engaging portion 314 of the connecting gear 41 and the second engaging portion 3233 of the toggle member 323 are engaged; when the driving gear 8 receives the driving force to rotate around the first axis, the driving gear 8 drives the transmission gear 9 to rotate so as to drive the stirring rack gear 10 to rotate, the stirring rack gear 10 drives the connecting gear 41 engaged with the stirring rack gear 10 to rotate, the connecting gear 41 drives the toggle piece 423 to rotate along the second detection direction, after the stirring rack gear rotates for a preset angle, the protrusion 4232 of the toggle piece 423 abuts against the trigger end 451 of the sliding member 45, the sliding member 45 slides along the sliding rail 113 so that the contact end 452 moves to the second position and is separated from contact with the detection rod of the image forming apparatus, the connecting gear 41 drives the toggle piece 423 to continue rotating, the toggle piece 423 rotates, the trigger end 451 of the sliding member 45 abuts against the outer periphery of the protrusion 4232, the contact end 452 of the sliding member 45 keeps separated from the detection rod of the image forming apparatus, the connecting gear 41 drives the toggle piece 423 to continue rotating, the trigger end 451 is separated from contact with the protrusion 4232, the tension spring pushes the sliding member 45 to enable When the detection lever is abutted and detected again by the image forming apparatus, after rotating a certain angle, the rotating assembly 42 moves away from the housing 1 due to the urging of the first elastic member 43, the third protrusion 3213 enters the third notch 113, the fourth protrusion 3214 enters the fourth notch 114, the first meshing portion 314 of the connecting gear 41 and the second meshing portion 4233 of the toggle member 423 are disengaged, at this time, the detection unit 3 rotates to the end position, the stirring frame 4 only drives the connecting gear 41 to rotate, the rotating assembly 42 does not rotate along with the connecting gear 41, and the contact end 452 of the sliding member 45 keeps abutted against the detection lever of the image forming apparatus, thereby completing the detection. The reset method in the second embodiment is similar to the reset method in the first embodiment, and is not described herein again.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A developing cartridge detachably mountable to an image forming apparatus having a detecting member, comprising:

a housing in which a developer can be accommodated;

a driving force receiving member that receives a driving force output by the image forming apparatus;

a detection unit installed at one side of the housing and detected by the detection part; wherein the detection unit is mounted on the same side of the housing as the driving force receiving member;

the detection unit is arranged between the shell and the end cover;

the detection unit comprises a connecting gear, a rotating assembly and a sliding component; the connecting gear and the rotating assembly are rotatably mounted on the housing, the connecting gear can receive the driving force of the driving force receiving member and rotate, and the connecting gear can be meshed with the rotating assembly to drive the rotating assembly to rotate;

wherein the rotating assembly can force the sliding member to slide relative to the end cap to cause the sliding member to contact or disengage the detection component.

2. A developing cartridge according to claim 1, further comprising a first elastic member mounted between said connecting gear and said rotary member, said first elastic member being for urging said rotary member to engage or disengage said connecting gear and said rotary member.

3. The developing cartridge according to claim 1, further comprising a second elastic member mounted between the end cap and the sliding member, the second elastic member being for generating a force for urging the sliding member to contact the detecting part.

4. A developing cartridge according to claim 1, wherein said rotation member includes a cover member, a third elastic member, and a dial; the third elastic member is arranged between the cover member and the toggle piece, and the toggle piece is positioned between the connecting gear and the cover member and can stretch along the rotating axis of the connecting gear so as to enable the toggle piece to be meshed with or separated from the connecting gear.

5. A developing cartridge according to claim 1, wherein said connecting gear is provided with a disk-shaped toothed plate, an extending column extending in a left-right direction from said toothed plate away from said casing, and a first engaging portion formed to extend from said toothed plate, said rotary member being provided on said extending column, said first engaging portion being engageable with said rotary member.

6. The developer cartridge according to claim 1, wherein said sliding member comprises a slide groove, and said end cap is provided with a slide rail provided in said slide groove, said slide groove being movable along said slide rail 115 to slide said sliding member relative to said end cap.

7. A cartridge according to claim 4, wherein said dial includes a main body portion and a projection portion extending from said main body portion for abutting against said slide member to move said slide member to be detected by said detection means.

8. A developing cartridge according to claim 7, wherein said main body portion is provided with a first notch and a second notch each formed to be recessed from an outer peripheral surface of said main body portion toward the rotary shaft, said cover member is provided with a first projecting portion and a second projecting portion each formed to project from an inner peripheral surface of said cover member toward the rotary shaft, said first projecting portion and said first notch are matched with each other, and said second projecting portion and said second notch are matched with each other.

9. A developing cartridge according to claim 3, wherein said sliding member includes a contact end and an activation end, said second elastic member being disposed between said activation end and said casing, said activation end being adapted to contact said rotary member so that said contact end is movably brought into contact with or disengaged from said detecting part.

10. A developing cartridge according to claim 1, wherein said detecting unit further includes an idler gear which receives said driving force and rotates following said driving force receiving member, said idler gear engaging with said connecting gear and rotating said connecting gear.

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