CN215576111U - Detection signal transmission mechanism and developing cartridge - Google Patents
Detection signal transmission mechanism and developing cartridge Download PDFInfo
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- CN215576111U CN215576111U CN202121945861.9U CN202121945861U CN215576111U CN 215576111 U CN215576111 U CN 215576111U CN 202121945861 U CN202121945861 U CN 202121945861U CN 215576111 U CN215576111 U CN 215576111U
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Abstract
The utility model relates to the technical field, provides a detection signal transmission mechanism and provides a developing box, wherein the detection signal transmission mechanism comprises: a housing; the detected piece is movably arranged on the shell; a driving wheel rotatably connected to the housing for receiving a driving force from the driving force receiving member; the transmission part is coaxially and synchronously connected with the transmission wheel, at least one force application part is arranged on the transmission part, each force application part is circumferentially arranged on the transmission part and used for pushing the detected part to move on the shell, a separation block is arranged on the shell, a separation force receiving part is also arranged on the transmission part, and the separation block is arranged on a movement path of the separation force receiving part and can push the separation force receiving part to separate the transmission part from the transmission wheel. Compared with the prior art, the gear-free gear solves the technical problems of complex structure, high requirement on manufacturing precision and unsmooth risk of the conventional gear-free gear, has a simple and ingenious structure, and ensures the smooth transmission of detection signals.
Description
Technical Field
The present invention relates to an electrophotographic image forming apparatus, and more particularly, to a detection signal transfer mechanism and a developing cartridge.
Background
The process cartridge is an important component part in an electrophotographic image forming apparatus for performing photosensitive development for the electrophotographic image forming apparatus. The existing process cartridge includes two modes: firstly, the photosensitive drum box and the developing box are integrated together to form an integrated processing box; and the developing box is arranged in the photosensitive drum box to form a split type processing box.
In general, in a process cartridge of a separated type, a developing cartridge may supply a developer to a photosensitive drum during printing to develop an electrostatic latent image on the photosensitive drum, and when the developer in the developing cartridge is rapidly exhausted, it is necessary to replace a new developing cartridge and then mount the developing cartridge to an electrophotographic image forming apparatus for use. The developing box in the prior art is provided with a detected piece, and the detected piece is matched with a detecting piece in the electronic photographic imaging equipment for detection, so that whether the developing box is new or the printable quantity of the developing box, the specification of the developing box and the like are determined.
The utility model provides a present developing box, the detected device of developing box includes gear and the detected piece that is connected with the detection mechanism on the electrophotographic imaging equipment, wherein, the detected piece locates one side of developing box casing, gear leans on with the detected piece through a missing tooth gear, gear receives the drive power that comes from electrophotographic imaging equipment, when gear received drive power operation, the missing tooth gear promotes through the gear part of self and is detected the piece swing, it is during to detect the piece with signal transmission to detection mechanism, until missing tooth gear rotates to missing tooth part, in order to accomplish the testing process.
However, in the above structure of the developing cartridge, there are the following drawbacks: 1. when the developing box is mounted at the disassembled position, the gear with the missing teeth can not rotate along with the gear device any more and can not reset; 2. the structure needs to be tightly matched with the stirring gear on the gear device through the toothed part and the tooth-lacking part of the tooth-lacking gear, the manufacturing precision requirement is high, the production cost is high, the structure is complex, and the detection result is influenced by the fact that the stirring gear and the tooth-lacking gear are easy to clamp in the detection contact process.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide a detection signal transmission mechanism, which is used for solving the technical problems of complex structure, high requirement on manufacturing precision and unsmooth risk of the conventional gear with no teeth, has a simple and ingenious structure and ensures the smooth transmission of detection signals.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a detection signal transmission mechanism including: a housing; the detected piece is movably arranged on the shell; a driving wheel rotatably connected to the housing for receiving a driving force from a driving force receiving member; the transmission part is coaxially arranged and synchronously connected with the transmission wheel, at least one force application part is arranged on the transmission part, the force application parts are circumferentially arranged on the transmission part and used for pushing the detected part to move on the shell, a separation block is arranged on the shell, a separation force receiving part is also arranged on the transmission part, and the separation block is arranged on a movement path of the separation force receiving part and can push the separation force receiving part to separate the transmission part from the transmission wheel.
The detection signal transmission mechanism provided by the utility model at least has the following beneficial effects: compared with the prior art, the detection signal transmission mechanism cancels a tooth-lacking gear structure, the driving force for detection is transmitted through an additional transmission part, when the transmission wheel receives the driving force to rotate, the transmission wheel drives the transmission part to synchronously rotate, each force application part on the transmission part sequentially pushes against the detected piece, so that the detected piece moves and transmits a corresponding detection signal to the detection mechanism of the electronic photographic imaging equipment, after all the force application parts are acted, the separation block on the shell pushes against the separation force receiving part to separate the transmission part from the transmission wheel, the transmission part does not rotate any more, the detected piece completes the detection signal transmission process, the transmission part is taken as an intermediate part, the rotation of the transmission wheel is not influenced, the transmission wheel does not generate a pause phenomenon in the signal transmission process, and the detection signal can be transmitted quickly and smoothly; and the detection signal transmission mechanism can realize the transmission of the detection signal by using a simple structure, thereby remarkably reducing the production cost.
Optionally, one side of the driving wheel, which faces the driving member, is provided with a first sawtooth portion, one side of the driving member, which faces the driving wheel, is provided with a second sawtooth portion, and the driving member is synchronously connected with the driving wheel through meshing between the first sawtooth portion and the second sawtooth portion.
Optionally, a joint disc is arranged at one end, facing the driving wheel, of the driving member, the second sawtooth portion is arranged on the joint disc, a limiting notch is formed in the outer edge of the joint disc, a first limiting portion is arranged on the shell and located on one side, facing away from the driving wheel, of the joint disc, and when the separating block enables the driving member to be separated from the driving wheel, the first limiting portion is buckled into the limiting notch.
Optionally, the housing has a movable hole, and the detected member is disposed in the movable hole and can move in the movable hole.
Optionally, the detected member is provided with a force receiving portion, the force receiving portion is disposed on a movement path of the force applying portion, and the force applying portion pushes against the force receiving portion to enable the detected member to move in a direction away from the transmission member.
Optionally, a reset elastic member is disposed between the housing and the detected member, and the reset elastic member moves the detected member toward the direction close to the transmission member with an elastic force.
Optionally, one end of the transmission member, which is far away from the transmission wheel, is provided with a limiting groove, the housing is further provided with a second limiting portion located in the extending direction of the axis of the transmission member, and when the separation block separates the transmission member from the transmission wheel, the second limiting portion is buckled into the limiting groove.
Optionally, the separating block is provided with a separating inclined surface, and when the separating force receiving portion moves onto the separating block, the separating inclined surface pushes against the separating force receiving portion to enable the transmission member to move back to the axial direction of the transmission wheel.
Optionally, the separation force receiving portion is provided with a guide inclined surface capable of being matched with the separation inclined surface.
To achieve the above object, the present invention also provides a developing cartridge comprising: a driving force receiving member for receiving a driving force from the electrophotographic image forming apparatus; in the above detection signal transmission mechanism, the driving force receiving member is disposed on the housing, the driving wheel is in transmission connection with the driving force receiving member, the housing has a connecting shaft, and the driving wheel and the driving member are both disposed on the connecting shaft.
According to the developing box provided by the utility model, at least the following beneficial effects are achieved: this developing box simple structure, easily realize, when drive power receiving component receives the drive power among the electrophotographic image forming apparatus, rotate through drive wheel synchronous drive driving medium, the driving medium utilizes application of force portion touching to make when being detected the piece and is detected the piece motion, stir the detection mechanism in the electrophotographic image forming apparatus, and then give the printer with the information transfer with confirm whether the developing box is new or whether the printable volume of developing box and the specification of developing box etc., overall structure is simple, greatly reduced manufacturing cost, the card pause phenomenon that exists when having eliminated the missing tooth gear drive.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a developing cartridge provided in an embodiment of the present invention;
fig. 2 is a schematic view of a separated structure of the developing cartridge provided in fig. 1;
fig. 3 is a partially enlarged schematic view at a of the developing cartridge provided in fig. 2;
FIG. 4 is a schematic view of the construction of the transmission provided in FIG. 2;
FIG. 5 is a schematic structural view of an end cap of the housing provided in FIG. 2;
FIG. 6 is a schematic structural diagram of a detection signal transmission mechanism according to an embodiment of the present invention at an initial position;
FIG. 7 is a schematic structural diagram of a detection signal transmission mechanism in an intermediate position according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a detection signal transmission mechanism in a final position according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of the developing cartridge provided in the embodiment of the present invention after removing the end cap.
Wherein, in the figures, the respective reference numerals:
the shell 100, the shell 110, the end cover 120, the separating block 130, the separating inclined plane 131, the first limiting part 140, the movable hole 150, the first locking part 160, the connecting shaft 170 and the second limiting part 180;
the detected piece 200, the detecting protrusion 210, the force receiving portion 220, and the second locking portion 230;
a transmission wheel 300, a first serration part 310;
the transmission piece 400, the force application part 410, the separation force receiving part 420, the guide inclined plane 421, the second sawtooth part 430, the joint disc 440, the limit notch 450, the limit groove 460 and the column sleeve 470;
a restoring elastic member 500;
a driving force receiving member 600, a driving gear 610, a transition gear 620, and a stirring gear 630.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The detection signal transmission mechanism provided by the embodiment of the first aspect of the present invention will now be described with reference to the accompanying drawings.
Referring to fig. 1 to 9, a detecting signal transmitting mechanism includes a housing 100, a detected object 200, a transmission wheel 300 and a transmission member 400, wherein the detected object 200 is movably disposed on the housing 100 and can move on the housing 100 in a swinging, sliding or other moving manner, the detected object 200 is in contact with or connected to a detecting mechanism of an external electrophotographic image forming apparatus, when the detected object 200 moves on the housing 100, the detected signal is transmitted to the detecting mechanism, the transmission wheel 300 is rotatably connected to the housing 100 through a connecting shaft 170 for receiving a driving force from a driving force receiving member 600 and rotates on the housing 100, the transmission member 400 is coaxially and synchronously connected with the transmission wheel 300, i.e. the transmission member 400 and the transmission wheel 300 are disposed on the same connecting shaft 170 and can rotate on the connecting shaft 170, a synchronous separable structure is disposed between the transmission member 400 and the transmission wheel 300, the transmission wheel 300 transmits the driving force into the transmission member 400 through the synchronous detachable structure and drives the transmission member 400 to rotate, and when the transmission member 400 moves axially on the connecting shaft 170 away from the transmission wheel 300, the transmission member 400 is separated from the transmission wheel 300 and does not receive the driving force from the transmission wheel 300. The transmission member 400 has at least one force application portion 410, and each force application portion 410 is circumferentially disposed on the transmission member 400 and protrudes radially outward for pushing the detected member 200 to move on the housing 100, so as to transmit the detection signal to the detection mechanism. It should be noted that the number of the force applying portions 410 may be one, two, or more than two, and the setting number and the pushing angle thereof may be reasonably designed according to the setting number and the setting duration of the detection signals of the detection mechanism, so as to facilitate the detection by matching with the detection mechanism. In this embodiment, two force applying portions 410 are provided, one of which is a short-time force applying portion, and the other is a long-time force applying portion, the pushing time of the short-time force applying portion to the detected object 200 is short, the pushing time of the long-time force applying portion to the detected object 200 is long, and the pushing time of the two is determined according to the protruding angle of the force applying portion 410 on the transmission member 400.
The housing 100 has a separating block 130, the transmission member 400 also has a separating force receiving portion 420, when the transmission member 400 rotates synchronously with the transmission wheel 300, the separating force receiving portion 420 rotates around the rotation axis of the transmission member 400, the separating block 130 is disposed on the movement path of the separating force receiving portion 420, because the housing 100 is relatively fixed, the separating force receiving portion 420 passes through the separating block 130 during the rotation process, the separating block 130 pushes the separating force receiving portion 420 to move axially away from the transmission wheel 300 during the contact with the separating force receiving portion 420, so that the transmission member 400 is separated from the transmission wheel 300, and at this time, the transmission member 400 is no longer synchronously connected with the transmission wheel 300. It should be understood that the separating block 130 is disposed at a position where each force application portion 410 completely pushes the detected object 200, and separates the transmission member 400 from the transmission wheel 300 after each force application portion 410 completes the operation.
Referring to fig. 6 to 8, the operation process of the detection signal transmission mechanism is as follows: after the driving wheel 300 receives the driving force, the driving member 400 is synchronously driven to rotate, each force application part 410 sequentially supports and pushes the detected piece 200, the detected piece 200 transmits a detection signal to the detection mechanism once each time the detected piece is supported and pushed, until the force application of all the force application parts 410 is completed, the transmission of the detection signal is completed, the separating block 130 pushes the separating force receiving part 420 to axially move outwards, the driving member 400 is separated from the driving wheel 300, the driving member 400 does not rotate any more, and the transmission process of the detection signal is completed.
Compared with the prior art, the detection signal transmission mechanism cancels a gear structure with missing teeth, transmits the driving force for detection through the transmission part 400 arranged additionally, when the driving wheel 300 receives the driving force to rotate, the driving wheel 300 drives the transmission member 400 to rotate synchronously, each force application part 410 on the transmission member 400 sequentially pushes against the detected object 200, so that the detected object 200 moves and transmits a corresponding detection signal to a detection mechanism of the electrophotographic image forming apparatus, after all the force application parts 410 are applied, the separating block 130 on the housing 100 pushes the separating force receiving part 420 to separate the transmission member 400 from the transmission wheel 300, the transmission member 400 does not rotate any more, the detected member 200 completes the transmission process of the detection signal, the transmission member 400 is used as an intermediate member, so that the rotation of the transmission wheel 300 is not influenced, the transmission wheel 300 does not generate a pause phenomenon in the signal transmission process, and the detection signal can be transmitted out quickly and smoothly; and the detection signal transmission mechanism can realize the transmission of the detection signal by using a simple structure, thereby remarkably reducing the production cost.
In an embodiment of the present invention, referring to fig. 3, a first serration part 310 is disposed on a side of the driving wheel 300 facing the driving member 400, the first serration part 310 is uniformly arranged around a rotation axis of the driving wheel 300 and is tilted in the same direction, a second serration part 430 is disposed on a side of the driving member 400 facing the driving wheel 300, the second serration part 430 is uniformly arranged around the rotation axis of the driving member 400 and is tilted in the same direction as the serration part, and the tilt angles are the same, so that the second serration part 430 can be engaged with the first serration part 310, and the driving member 400 is synchronously connected with the driving wheel 300 through engagement between the first serration part 310 and the second serration part 430. The first sawtooth part 310 and the second sawtooth part 430 are one of the preferable structures of the synchronous separable structures between the transmission member 400 and the transmission wheel 300, the two structures realize synchronous connection through sawtooth meshing, the connection is tight, the synchronous degree is high, in addition, clutch transmission can also be realized between the transmission wheel 300 and the transmission member 400 through other synchronous separable structures, and the technical effect of synchronous separation in the utility model can also be achieved.
In another embodiment of the present invention, referring to fig. 4, an end of the transmission member 400 facing the transmission wheel 300 is provided with a joint disc 440, the second serration part 430 is provided on the joint disc 440, and the joint disc 440 provides a location for the second serration part 430, so as to improve the stability of the combination of the first serration part 310 and the second serration part 430 between the transmission member 400 and the transmission wheel 300. The engaging plate 440 has a limiting notch 450 on an outer edge thereof, the housing 100 has a first limiting portion 140 thereon, the first limiting portion 140 is located on a side of the engaging plate 440 opposite to the driving wheel 300, and when the separating block 130 separates the driving member 400 from the driving wheel 300, the first limiting portion 140 is locked into the limiting notch 450. When the transmission member 400 rotates to the separation point, that is, the separation block 130 contacts the separation force receiving portion 420, the first limiting portion 140 is located in the axial outer direction of the limiting notch 450, the transmission member 400 is axially separated from the transmission wheel 300 under the action of the separation block 130, and the first limiting portion 140 is buckled into the limiting notch 450, so that the transmission member 400 is limited from rotating any more, and the transmission member 400 is prevented from freely rotating on the connection shaft 170 under the action of vibration or inertia and from contacting again to push the detected member 200.
In another embodiment of the present invention, the housing 100 is provided with a movable hole 150, the movable hole 150 is a long hole provided on the casing 110, and the detected member 200 is provided in the movable hole 150 and can move in the movable hole 150. The detected member 200 has a detecting protrusion 210, and the detecting protrusion 210 is used for pushing against an external detecting mechanism and transmitting a detecting signal, in this embodiment, the detected member 200 is rotatably disposed in the movable hole 150 and performs a swinging motion, and the detecting protrusion 210 pushes a detecting component on the detecting mechanism. In addition, the signal transmission motion of the detected object 200 may also be a linear motion, the detected object 200 is slidably connected to the housing 100, and each force application portion 410 pushes the detected object 200 to move linearly, so as to transmit the detection signal to the detection mechanism.
Specifically, the detected member 200 has a force-receiving portion 220, the force-receiving portion 220 is disposed on a movement path of the force-applying portion 410, and is close to or in contact with a circumferential outer wall of the transmission member 400, and the force-applying portion 410 pushes the force-receiving portion 220 to move the detected member 200 in a direction away from the transmission member 400, so as to transmit the motion signal to the detection mechanism.
Further, a reset elastic member 500 is disposed between the casing 100 and the detected member 200, and two ends of the reset elastic member 500 are respectively connected to the casing 100 and the detected member 200, so that the detected member 200 moves toward the driving member 400 by elasticity. In this embodiment, the elastic restoring member 500 is a tension spring, the housing 100 has a first locking portion 160, the detected member 200 has a second locking portion 230, a first end of the elastic restoring member 500 hooks the first locking portion 160, a second end hooks the second locking portion 230, and after the detected member 200 is pushed by the force applying portion 410, the elastic restoring member 500 is stretched and drives the detected member 200 to restore by the stored elastic potential energy, so that the detected member 200 performs the next signal transmission operation.
In another embodiment of the present invention, one end of the transmission member 400 away from the transmission wheel 300 is provided with a limiting groove 460, the transmission member 400 is provided with a column sleeve 470 which is sleeved on the connecting shaft 170, the limiting groove 460 is located on the outer end portion of the column sleeve 470, the housing 100 is further provided with a second limiting portion 180 which is located on the extending direction of the axis of the transmission member 400, the second limiting portion 180 is used for matching with the limiting groove 460, when the separation block 130 separates the transmission member 400 from the transmission wheel 300, the second limiting portion 180 is axially buckled into the limiting groove 460, and the separated transmission member 400 is limited. The structure of the second position-limiting portion 180 and the position-limiting groove 460 in this embodiment can combine the structure of the first position-limiting portion 140 and the position-limiting notch 450 to perform double limitation on the separated transmission member 400, so as to enhance the position-limiting effect on the transmission member 400.
In another embodiment of the present invention, the separating block 130 has a separating inclined surface 131, the separating inclined surface 131 is inclined in an axially outward direction of the transmission member 400, the separating inclined surface 131 faces a moving direction of the separating force receiving portion 420, when the separating force receiving portion 420 moves to the separating block 130, the separating force receiving portion 420 contacts with the separating inclined surface 131, and since the separating block 130 is relatively immovable, the separating inclined surface 131 pushes the separating force receiving portion 420 to gradually and axially separate the transmission member 400 from the transmission wheel 300 and finally separate from the transmission wheel 300.
Further, the separation force receiving portion 420 is provided with a guide inclined surface 421 capable of being matched with the separation inclined surface 131, an inclined angle of the guide inclined surface 421 is the same as or similar to an inclined angle of the separation inclined surface 131, when the separation force receiving portion 420 abuts against the separation block 130, the guide inclined surface 421 is in full contact with the separation inclined surface 131, the separation force receiving portion 420 gradually moves axially and outwardly along the separation inclined surface 131 through the guide inclined surface 421, the guide inclined surface 421 plays a guiding role in the movement process, and the engagement between the inclined surfaces can improve the axial movement distance of the transmission member 400, so that the transmission member 400 is fully separated from the transmission wheel 300.
Referring to fig. 1 and 9, a developing cartridge according to an embodiment of the second aspect of the present invention will be described.
A developing cartridge includes a driving force receiving member 600 and a detection signal transmission mechanism according to an embodiment of the first aspect of the present invention, the driving force receiving member 600 is used for receiving a driving force of an electrophotographic image forming apparatus, the driving force receiving member 600 is provided on a casing 100, a driving wheel 300 is in driving connection with the driving force receiving member 600, the driving wheel 300 receives the driving force through the driving force receiving member 600, wherein the driving force receiving member 600 is a gear device including a driving gear 610, a transition gear 620 and an agitating gear 630, the casing 100 includes a casing 110 and an end cap 120 fixedly mounted on one side of the casing 110, one side of the casing 110 has a connecting shaft 170, the driving wheel 300 and a driving member 400 are sequentially and axially arranged on the connecting shaft 170, and the driving wheel 300 is rotatably connected to the casing 100 through the connecting shaft 170. Specifically, the driving force receiving member 600 is provided on the casing 110 on the same side as the connecting shaft 170, the stirring gear 630 is engaged with the driving pulley 300, the driving gear 610 receives the driving force on the electrophotographic image forming apparatus, and the developing cartridge further includes a stirring frame rotatably provided in the casing 110, the stirring gear 630 being provided on the stirring frame, and upon receiving the driving force, drives the stirring frame to rotate, so that the stirring frame stirs the developer inside the casing 110. The separating block 130, the first position-limiting portion 140, the second position-limiting portion 180 and the first locking portion 160 of the first embodiment of the present invention are disposed on the end cap 120, and the end cap 120 is disposed on one side of the casing 110, so as to wrap the driving wheel 300, the driving element 400 and the driving force receiving member on the same side of the casing 110.
Compared with the prior art, this developing box simple structure, easily realize, when drive power among the drive power receiving component 600 receipt electrophotographic image forming apparatus drive power, through the rotation of drive wheel 300 synchronous drive driving medium 400, driving medium 400 utilizes application of force portion 410 touching to make when being detected the piece 200 and detect the piece 200 motion, stir the detection mechanism in the electrophotographic image forming apparatus, and then give the printer with confirm whether the developing box is new or the printable volume of developing box and the specification of developing box etc. overall structure is simple, greatly reduced manufacturing cost, the card pause phenomenon that exists when having eliminated the missing tooth gear drive.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A detection signal transmission mechanism, comprising:
a housing;
the detected piece is movably arranged on the shell;
a driving wheel rotatably connected to the housing for receiving a driving force from a driving force receiving member;
the transmission part is coaxially and synchronously connected with the transmission wheel, the transmission part is provided with at least one force application part, each force application part is circumferentially arranged on the transmission part and is used for pushing the detected part to move on the shell,
the shell is provided with a separating block, the transmission piece is also provided with a separating force receiving part, and the separating block is arranged on a motion path of the separating force receiving part and can be abutted against the separating force receiving part to separate the transmission piece from the transmission wheel.
2. The test signal transmission mechanism of claim 1, wherein a side of the transmission wheel facing the transmission member is provided with a first serration portion, and a side of the transmission member facing the transmission wheel is provided with a second serration portion, and the transmission member is synchronously coupled to the transmission wheel through engagement between the first serration portion and the second serration portion.
3. The detecting signal transmitting mechanism according to claim 2, wherein the driving member has a engaging plate at an end thereof facing the driving wheel, the second saw-tooth portion is provided on the engaging plate, the engaging plate has a limiting notch at an outer edge thereof, the housing has a first limiting portion at a side of the engaging plate facing away from the driving wheel, and the first limiting portion is caught in the limiting notch when the driving member is separated from the driving wheel by the separating block.
4. The detection signal transmission mechanism according to claim 1, wherein the housing has a movable hole, and the detection object is provided in the movable hole and is movable in the movable hole.
5. The transmission mechanism as claimed in claim 4, wherein the detected member has a force-receiving portion, the force-receiving portion is disposed on a moving path of the force-applying portion, and the force-applying portion pushes the force-receiving portion to move the detected member in a direction away from the transmission member.
6. The detection signal transmission mechanism according to claim 5, wherein a return elastic member is provided between the housing and the detected member, and the return elastic member moves the detected member in a direction approaching the transmission member with an elastic force.
7. The detecting signal transmitting mechanism according to claim 1, wherein an end of the transmission member remote from the transmission wheel has a limit groove, and the housing further has a second limit portion located in an extending direction of an axis of the transmission member, and the second limit portion is engaged with the limit groove when the transmission member is separated from the transmission wheel by the separating block.
8. The detecting signal transmitting mechanism of claim 1, wherein the separating block has a separating slope, and when the separating force receiving portion moves to the separating block, the separating slope pushes the separating force receiving portion to move the transmission member axially away from the transmission wheel.
9. The detection signal transmission mechanism according to claim 8, wherein the separation force receiving portion is provided with a guide slope that can be fitted with the separation slope.
10. A developing cartridge, characterized by comprising:
a driving force receiving member for receiving a driving force from the electrophotographic image forming apparatus;
the transmission mechanism according to any one of claims 1 to 9, wherein the driving force receiving member is provided on the housing, the driving wheel is in driving connection with the driving force receiving member, the housing has a connecting shaft thereon, and the driving wheel and the driving member are both provided on the connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945861.9U CN215576111U (en) | 2021-08-18 | 2021-08-18 | Detection signal transmission mechanism and developing cartridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945861.9U CN215576111U (en) | 2021-08-18 | 2021-08-18 | Detection signal transmission mechanism and developing cartridge |
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| Publication Number | Publication Date |
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| CN215576111U true CN215576111U (en) | 2022-01-18 |
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| CN202121945861.9U Active CN215576111U (en) | 2021-08-18 | 2021-08-18 | Detection signal transmission mechanism and developing cartridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534638A (en) * | 2021-08-18 | 2021-10-22 | 珠海联合天润打印耗材有限公司 | Detection signal transmission mechanism and developing cartridge |
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2021
- 2021-08-18 CN CN202121945861.9U patent/CN215576111U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534638A (en) * | 2021-08-18 | 2021-10-22 | 珠海联合天润打印耗材有限公司 | Detection signal transmission mechanism and developing cartridge |
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| GR01 | Patent grant |