CN216526744U

CN216526744U - Developing box

Info

Publication number: CN216526744U
Application number: CN202122862107.5U
Authority: CN
Inventors: 龚小敏; 彭健; 敖仕平; 顾海丰; 邹兴
Original assignee: Jiangxi Yibo Electronic Technology Co Ltd
Current assignee: Jiangxi Yibo Electronic Technology Co Ltd
Priority date: 2020-11-19
Filing date: 2021-11-19
Publication date: 2022-05-13
Anticipated expiration: 2031-11-19
Also published as: CN216927375U; CN114545750A

Abstract

A developing cartridge detachably mountable to an image forming apparatus having a detecting unit, includes: a housing in which a developer can be accommodated; a driving force receiving member provided at one side of the housing in a length direction of the housing, receiving and transmitting a driving force from the image forming apparatus; a stirring frame which is arranged in the shell, receives the driving force and can rotate along with the driving force receiving component; the detection device further comprises a detected unit, wherein the detected unit comprises a connecting rod, a detection body and a contact component; the connecting rod is arranged in the shell, the connecting rod receives the driving force from the driving force receiving component and can rotate along with the driving force receiving component, the detecting body can coaxially rotate along with the connecting rod and touch the contact component, and the contact component can be detected by the detecting unit; the detection body and the contact member are located on the other side of the housing in the longitudinal direction of the housing.

Description

Developing box

Technical Field

The present invention relates to a developing cartridge, and more particularly, to a unit to be detected of a developing cartridge.

Background

In a related-art image forming apparatus such as a laser printer, a developing cartridge is attachable to and detachable from a main body of the image forming apparatus. After the developer in the developing cartridge is used up, it is necessary to take out the developing cartridge from the main body of the image forming apparatus and mount a new developing cartridge into the main body; or when a paper jam occurs, the developing cartridge is also taken out of the main body of the image forming apparatus and then loaded into the image forming apparatus. The image forming apparatus is generally provided with a detection unit; the image forming apparatus can determine specific information such as the model number, the capacity size, the freshness of the developing cartridge and the like according to the number of times the detecting unit is contacted, the time interval and the like. The detecting unit in the image forming apparatus in the prior art can determine the specific model of the developing cartridge by the speed of the rotating speed of the detecting member of the detected unit in the developing cartridge, and if the detecting unit in the image forming apparatus detects that the rotating speed of the detecting member in the developing cartridge is lower or higher than the preset value set by the image forming apparatus, an alarm message can be sent out in the image forming apparatus to prompt a cartridge error. However, the developing cartridge in the related art is detected by a complicated mechanism or has a low accuracy, and when the developing cartridge is mounted in the image forming apparatus, a mistake is liable to occur.

In the prior art, in the existing developing box, the driving force is transmitted to the side where the detecting member is installed through the stirring shaft installed in the developing box, and then the driving force is transmitted to the detecting member through the gear at the detecting end.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a developing box, which solves the problems that the gear train layout of the developing box is not flexible enough and the miniaturization design of the developing box is influenced in the prior art, and in order to solve the technical problems, the developing box is realized by the following technical scheme:

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

a housing in which a developer can be accommodated;

a driving force receiving member provided at one side of the housing in a longitudinal direction of the housing, receiving and transmitting a driving force from the image forming apparatus;

a stirring frame provided in the housing, receiving the driving force and rotatable following the driving force receiving member;

the detection device further comprises a detected unit, wherein the detected unit comprises a connecting rod, a detection body and a contact component;

the connecting rod is arranged in the shell, the connecting rod receives the driving force and can rotate along with the driving force receiving component, the detection body can coaxially rotate along with the connecting rod and touch the contact component, and the contact component can be detected by the detection unit; the detection body and the contact member are located on the other side of the housing in the longitudinal direction of the housing.

Further, the connection rod is disposed in the housing, and the connection rod penetrates the housing in a length direction of the housing.

Further, a stirring frame is provided in the housing, and the connecting rod is farther from the driving force receiving member in a width direction of the housing relative to the stirring frame.

Further, the detected unit further includes a side cover, a first elastic member, a rotating member, and a cover member; the side cover, the first elastic member and the rotating member are all arranged on the other side of the shell, the rotating member is fixedly connected with the connecting rod and can rotate along with the connecting rod, the side cover is arranged between the detection body and the rotating member, and the first elastic member is arranged between the detection body and the cover member.

Further, the detection body includes a disk-shaped main body, an extension column and a guide column extending from one surface of the main body, a fixing column extending from the other surface of the main body, and a protrusion; the extension column is sleeved on the rotating component and can move in the axial direction relative to the rotating component, a limiting column extends from the outer circumference of the extension column, the guide column is abutted against the side cover, the limiting column can be abutted against the rotating component, and the protrusion can rotate along with the detection body and touch the contact component.

Further, the detected unit further comprises a second elastic component, the side cover is provided with a groove and a first hook portion, slide rails are arranged on two sides of the groove, the contact component is correspondingly provided with a sliding groove and a second hook portion, the slide rails are arranged in the sliding groove and can slide relatively, and two ends of the second elastic component are respectively connected with the first hook portion and the second hook portion.

Further, the detected unit further includes a second elastic member provided between the contact member and the housing, the contact member including a rotation shaft, the contact member being rotatable and detected by the detection unit when the detection body touches the contact member.

Further, the rotation axis is inclined with respect to the longitudinal direction of the housing by an inclination angle α.

Furthermore, the device also comprises a first transmission rod, a second transmission rod, a first transmission gear, a second transmission gear and a third transmission gear; the first transmission gear is used for receiving the driving force, the first transmission gear and the second transmission gear are arranged at two ends of the first transmission rod, so that the second transmission gear follows the first transmission gear to rotate, the third transmission gear follows the second transmission gear to rotate, the third transmission gear is arranged at one end of the second transmission rod, the second transmission rod follows the third transmission gear to rotate, and the connecting rod can follow the second transmission rod to rotate.

Further, a protective sleeve is further arranged in the shell and sleeved on the periphery of the connecting rod.

The developing box power assembly and the detecting body are connected through the connecting rod and are separately arranged on the opposite driving side and the opposite detecting side of the shell, the developing box power assembly and the detecting body are simple in structure, beneficial to the layout of a gear train of the developing box and the miniaturization design of the developing box, stable in performance and capable of saving production cost compared with the prior art.

Drawings

Fig. 1 is a schematic perspective view of a developing cartridge in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a driving side of the developing cartridge in the embodiment of the present invention;

FIG. 3 is a schematic configuration diagram of the detection side of the developing cartridge in the embodiment of the present invention;

fig. 4 is a schematic perspective view of a developing cartridge according to another embodiment of the present invention;

FIG. 5 is a schematic view of a part of the structure of a developing cartridge in an embodiment of the present invention;

FIG. 6 is a schematic view of power transmission of the developing cartridge in the embodiment of the present invention;

FIG. 7 is a schematic view showing the assembly of the rotary assembly of the developing cartridge and the first protective cover in the first embodiment of the present invention;

FIG. 8 is an enlarged, fragmentary view of a first protective cover according to one embodiment of the utility model;

FIG. 9 is an exploded view of the rotary assembly of the developing cartridge in the first embodiment of the present invention;

fig. 10 is a schematic structural view of a driving side of the developing cartridge in the second embodiment of the present invention;

FIG. 11 is a partially exploded schematic view of the driving side of the developing cartridge in the second embodiment of the present invention;

fig. 12 is a schematic structural view of a driving side of the developing cartridge in the third embodiment of the present invention;

FIG. 13 is a partially exploded schematic view of the driving side of the developing cartridge in the third embodiment of the present invention;

FIG. 14 is a schematic configuration diagram of the detection side of the developing cartridge in the fourth embodiment of the utility model;

FIG. 15 is a partially exploded schematic view of the driving side of the developing cartridge in the fourth embodiment of the present invention;

fig. 16 is a front view of a driving side of the developing cartridge in the fourth embodiment of the present invention;

FIG. 17 is a front view of the driving side of the developing cartridge without the second protective cover in the fourth embodiment of the present invention;

fig. 18 is a schematic front structural view of a developing cartridge in a fifth embodiment of the utility model;

fig. 19 is a schematic structural view of the inside of a developing cartridge casing in a fifth embodiment of the utility model;

FIG. 20 is a schematic perspective view of a developer cartridge of the fifth embodiment of the present invention without a protective cover;

FIG. 21 is a schematic perspective view of the detection side of the developing cartridge in the fifth embodiment of the present invention;

fig. 22 is an exploded perspective view of a unit to be detected in the developing cartridge in the fifth embodiment of the present invention;

FIG. 23 is a schematic perspective view of a development cartridge edge cover according to a fifth embodiment of the present invention;

fig. 24 is a schematic perspective view of a detecting body in a developing cartridge according to a fifth embodiment of the present invention;

fig. 25 is a schematic perspective view of a rotary member in the developing cartridge in the fifth embodiment of the utility model;

FIG. 26 is a front view of the second protective cover of the contact member in the developing cartridge in the fifth embodiment of the present invention;

FIG. 27 is a schematic perspective view of the detection side of the developing cartridge in the sixth embodiment of the present invention;

fig. 28 is an exploded perspective view of a unit to be detected in the developing cartridge according to the sixth embodiment of the present invention;

FIG. 29 is a schematic perspective view of a development cartridge edge cover according to a sixth embodiment of the present invention;

FIG. 30 is a schematic perspective view showing a configuration of a detecting body and a rotary member in a developing cartridge according to a sixth embodiment of the present invention;

fig. 31 is a schematic view showing the mounting of a contact member in the developing cartridge in the sixth embodiment of the present invention;

FIG. 32 is a schematic side view of a contact member in a developing cartridge according to a sixth embodiment of the utility model;

fig. 33 is a schematic perspective view of a developing cartridge in a seventh embodiment of the utility model;

fig. 34 is a partially exploded schematic view of a developing cartridge in a seventh embodiment of the utility model;

fig. 35 is a schematic perspective view of an angle of a casing of a developing cartridge in a seventh embodiment of the utility model;

fig. 36 is a schematic perspective view of an angle of a casing of a developing cartridge in a seventh embodiment of the utility model;

fig. 37 is a partially exploded schematic view of a developing cartridge in the seventh embodiment of the utility model.

Detailed Description

In order to make the object, technical scheme and technical effect of the embodiment of the present invention clearer, the technical scheme of the developing cartridge of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the described embodiment is only one preferred embodiment of the present invention, not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and 2, the developing cartridge of the present embodiment includes a casing 1 configured to store developer therein; the housing 1 is provided with a driving side 101 and a detecting side 102 opposed in a longitudinal direction, wherein the driving side 101 receives a driving force from the image forming apparatus. The driving side 101 is provided with an input gear 2, a developing roller gear 3 and a first powder feeding roller gear 4; the detection side 102 is provided with a second powder feeding roller gear 5, a first connecting gear 6, a second connecting gear 7 and a stirring frame gear 8; the input gear 2 is used for receiving driving force from the image forming device, and the developing roller gear 3 is meshed with the input gear 2, is arranged at one end of the developing roller 30 and drives the developing roller 30 to rotate; the first powder feeding roller gear 4 is meshed with the input gear 2, is arranged at one end of the powder feeding roller 40 and drives the powder feeding roller 40 to rotate, the second powder feeding roller gear 5 is arranged at the other end of the powder feeding roller 40 and rotates along with the first powder feeding roller gear 4, the first connecting gear 6 is meshed with the second powder feeding roller gear 5, the second connecting gear 7 is meshed with the first connecting gear 6, and the stirring frame gear 8 is meshed with the second connecting gear 7, so that the driving force is transmitted from the first powder feeding roller gear 4 to the stirring frame gear 8 to drive the stirring frame 50 to rotate; the agitating frame 50 is located in the casing 1, and both ends thereof are supported by the casing 1, respectively, for agitating the developer located in the casing 1, and the structure of the agitating frame 50 may be the same as that commonly found in the prior art.

The developing box comprises a first transmission rod, a second transmission rod, a first transmission gear, a second transmission gear and a third transmission gear; in the present embodiment, in order to facilitate miniaturization of the developing cartridge, the first transmission lever is configured as an agitating frame 50, the second transmission lever is configured as a powder feeding roller 40, the first transmission gear is configured as an agitating frame gear 8, the second transmission gear is configured as a second powder feeding roller gear 5, the third transmission gear is configured as a first powder feeding roller gear 4, specifically, the first powder feeding roller gear 4 is engaged with the input gear 2, the first powder feeding roller gear 4 transmits the driving force to the second powder feeding roller gear 5 on the detection side 102 through the powder feeding roller 40, the second powder feeding roller gear 5 is connected with the agitating frame gear 8 through the first connecting gear 6 and the second connecting gear 7, so that the agitating frame gear 8 rotates following the second powder feeding roller gear 5, and finally, the agitator gear 8 in turn transmits the driving force to the driving side 101 via the agitator 50, and the power assembly on the driving side 101 can rotate following the rotation of the agitator 50.

The developing cartridge further includes a detected unit including a first gear 11, a first cover 12, an elastic member 13, a connecting rod 14, a transmission gear 15, a rotary member 16, and a detecting body 17; the first gear 11, the first cover 12, the elastic member 13, and the transmission gear 15 are provided on the drive side 101, and the detection body 17 is provided on the detection side 102. The first gear 11 is fixed on one side of the stirring frame 50 and rotates along with the rotation of the stirring frame 50, and the transmission gear 15 is meshed with the first gear 11; both ends of the connecting rod 14 are supported by the housing 1, and have one end protruding from the driving side 101 and a second end protruding from the detection side 102, and in the present embodiment, the connecting rod 14 is provided in the housing 1, the transmission gear 15 is provided at the first end of the connecting rod 14, and the detecting body 17 is provided at the second end of the connecting rod 14. In another embodiment, the connecting rod 14 is disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 14.

The first cover 12 is made of a resin material, is detachably attached to the drive side 101 of the housing 1, and the first cover 12 covers at least part of the transmission gear 15. As shown, the first cover 12 is provided with a flat surface 121, a slope surface 122, an initial stopper portion 123 and a final stopper portion 124, the initial stopper portion 123 is configured as a projection from the flat surface 121, and the flat surface 121 extends around the positioning post; the slope 122 extends continuously from the plane 121, and inclines downwards from the plane 121; the termination-stopper portion 124 is configured as a rib.

One end of the elastic member 13 abuts against the housing 1, and the other end abuts against the rotary member 16. The one end and the connecting rod 14 fixed connection of rotating member 16, the other end and first protecting cover 12 butt, rotating member 16 is including guide post 161 and spacing post 162, guide post 161 and first protecting cover 12 butt. In one embodiment, the swivel member 16 and the connecting rod 14 are integrally constructed, increasing the strength of the assembly and facilitating installation.

The transfer gear 15 is configured to have a full-tooth gear formed on the entire outer circumference thereof, has a plurality of gear teeth, is provided with a groove 151 on the inner circumference of the transfer gear 15, the groove 151 is configured to be disposed around a portion of the inner circumference of the transfer gear 15, is provided with a first stopper wall 152 and a second stopper wall 153 at a start position and an end position of the groove 151, respectively, and the transfer gear 15 is further provided with a receiving hole 154 for mounting the rotary member 16.

As shown in fig. 2, the detection object 17 includes a detected portion that can be detected by the detection unit of the image forming apparatus; the detection section is provided with a protrusion 171, the detection body 17 is configured in a substantially disk shape, and the protrusion 171 extends from the surface of the detection body 17.

The detection process of the detected unit according to the present invention will be described in detail with reference to the accompanying drawings. When the transfer gear 15 is located at the initial position, the position-limiting post 162 on the rotating member 16 abuts against the first position-limiting wall 152 on the transfer gear 15, and the guiding post 161 abuts against the initial position-limiting portion 123 on the first protecting cover 12 and is located on the plane 121 of the first protecting cover 12; when the transmission gear 15 starts to rotate, the first stopper wall 152 rotates away from the stopper column 162, and the detection body 17 cannot receive the driving force from the transmission gear 15, so that the detection body 17 cannot rotate following the transmission gear 15; the second limit wall 153 abuts on the limit post 162 of the rotation member 16 when the transmission gear 15 rotates by a predetermined angle, so that when the transmission gear 15 further rotates, the transmission gear 15 can rotate the detecting body 17 together with the connecting rod 14, the guide post 161 abuts on the plane 121 and receives the driving force transmitted from the transmission gear 15 to rotate together with the detecting body 17, the detecting body 17 rotates together with the transmission gear 15 at the rotation speed R1, when the detecting body 17 rotates at the speed R1, the detecting body 17 can contact with and apply a force to the detecting unit in the image forming apparatus, the detecting unit rotates at the speed N1 after receiving the force of the detecting body 17, the control unit (not shown) in the image forming apparatus recognizes the rotation of the detecting unit, outputs a signal, the protrusions 171 of the detected portion can be provided in plural number, are distributed at intervals along the circumferential direction of the detecting body 17, and when the protrusions 171 are provided in plural number, when rotating along the plane 121, the detection unit in the image forming apparatus may be forced to rotate by contacting with the detection unit a plurality of times, thereby outputting signals a plurality of times; when the transmission gear 15 drives the detecting body 17 to further rotate, the guiding column 161 of the rotating member 16 is away from the plane 121 and abuts against the inclined plane 122, and the inclined plane 122 is inclined to be closer to the housing 1 relative to the plane 121, so that the rotating member 16 loses stable support, and at this time, the elastic member 13 applies elastic force to the rotating member 16, so that the rotating member 16 is forced to further rapidly rotate along the inclined plane 122 and the detecting body 17 moves towards the side close to the first protecting cover 12; the spacing post 162 is disengaged from the transfer gear 15, and the rotational speed R2 of the rotary member 16 is greater than the rotational speed R1 of the transfer gear 15 due to the action of the elastic member 13; at this time, when the detection body 17 rotates at the speed R2 following the rotation member 16, the detection body 17 comes into contact with the detection unit in the image forming apparatus and causes the detection unit to rotate at the speed N2, and the control unit (not shown) in the image forming apparatus can recognize the change in the rotation of the detection unit and output a signal; so that the image forming apparatus can output different signals according to the rotation change of the detection body 17 in the developing cartridge, thereby recognizing the specific model of the developing cartridge; in the present embodiment, when the rotary member 16 rotates along the inclined surface 122, the detection body 17 is kept in contact with the detection unit in the image forming apparatus at all times. R2 is greater than R1 in this embodiment; when the guide post 161 of the rotary member 16 rotates away from the slope 122, the rotary member 16 stops rotating, the detection body 17 stops rotating, and the guide post 161 of the rotary member 16 abuts against the end stopper 124 and is stopped at the end position; at this time, the stopper pin 162 of the rotary member 16 is completely disengaged from the groove 151 of the transmission gear 15 and thus does not come into contact with the first stopper wall 152 and the second stopper wall 153, and when the transmission gear 15 continues to receive the driving force transmitted from the transmission gear 15 and continues to rotate, the rotary member 16 is disengaged from the transmission gear 15 and the detecting body 17 is not rotated together with the rotary member 16 any more and is stopped at the end position, so that the detecting body 17 is detected.

In the developing cartridge of the embodiment, the detected unit is provided with the plane and the inclined plane on the first protecting cover, when the rotating member moves along the inclined plane, under the action of the elastic force of the elastic member, the rotating speed of the rotating member along the inclined plane is greater than the rotating speed of the detecting member along the plane, and the rotating member drives the detecting body to rotate through the connecting rod; by providing the flat surface and the inclined surface on the protective cover, the change of the rotation speed of the detection body is achieved, and the detection unit in the image forming apparatus is kept in contact with the detection body at all times during the accelerated rotation of the detection body. The developing box has simple structure and stable performance, is beneficial to miniaturization of the developing box, and can save the production cost compared with the prior art.

Example two

Next, a second embodiment will be described, and as shown in fig. 5 and 7, this embodiment is different from the first embodiment in the structure for transmitting the driving force to the detected unit. In the present embodiment, the detection unit includes the first gear 61, the second gear 62, the connecting rod 14, and the detection body 17. The first gear 61 and the second gear 62 are provided on the driving side 101, the detecting body 17 is provided on the detecting side 102, both ends of the connecting rod 14 are supported by the housing 1, respectively, and have one end protruding from the driving side 101 and a second end protruding from the detecting side 102, in this embodiment, the connecting rod 14 is provided in the housing 1, the second gear 62 is provided at the first end, and the detecting body 17 is provided at the second end. In another embodiment, the connecting rod 14 is disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 14.

The first gear 61 is fixed to the side of the agitator 50 on the driving side 101 and rotates with the rotation of the agitator 50, the first gear 61 includes a first tooth portion 611 of large teeth and a second tooth portion 612 of small teeth, the first tooth portion 611 and the second tooth portion 612 are coaxially arranged, the second tooth portion 612 is closer to the housing 1 than the first tooth portion 611 in the length direction of the housing 1, and in the present embodiment, both the first tooth portion 611 and the second tooth portion 612 are full-teeth portions. The second gear 62 is meshed with the first gear 61 and rotates with the first gear 61, the second gear 62 includes a third tooth 621 of small teeth and a fourth tooth 622 of large teeth, the third tooth 621 and the fourth tooth 622 are coaxially arranged, and the fourth tooth 622 is closer to the housing 1 than the third tooth 621 in the length direction of the housing 1. In the present embodiment, the third tooth 621 and the fourth tooth 622 are both tooth-missing portions. The second tooth 612 and the fourth tooth 622 have a first position in which the first tooth 611 and the third tooth 621 are engaged and a second position in which the first gear 61 and the second gear 62 have a third position in which they are not engaged, in which the first tooth 611 and the third tooth 621 are disengaged and the second tooth 612 and the fourth tooth 622 are disengaged, i.e. the first gear 61 and the second gear 62 are completely disengaged.

The detection process of the detected unit according to the present invention will be described in detail with reference to the accompanying drawings. When the first gear 61 and the second gear 62 are located at the initial positions, when the stirring frame 50 starts to drive the first gear 61 to rotate, the first gear 61 rotates at the first speed N1, the second gear 62 is not meshed with the first gear 61, and the second gear 62 does not rotate along with the first gear 61; when the first gear 61 further rotates, the second tooth portion 612 of the first gear 61 is meshed with the fourth tooth portion 622 of the second gear 62, the first gear 61 drives the second gear 62 to rotate at the rotation speed R1, the second gear 62 drives the detection body 17 to rotate together at the speed R1 through the connecting rod 14, the detection body 17 can contact with and apply force to the detection unit in the image forming apparatus, the detection unit rotates at the speed N1 after receiving the force of the detected portion, a control unit (not shown) in the image forming apparatus recognizes the rotation of the detection unit and outputs signals, a plurality of protrusions 171 can be arranged and are distributed at intervals along the circumferential direction of the detection body 17, and when a plurality of protrusions 171 are arranged, the plurality of protrusions can contact with the detection unit in the image forming apparatus to force the detection unit to rotate for a plurality of times, so as to output signals for a plurality of times; when the first gear 61 drives the second gear 62 to further rotate, the second tooth portion 612 of the first gear 61 is disengaged from the fourth tooth portion 622 of the second gear 62, at this time, the first tooth portion 611 of the large tooth of the first gear 61 is engaged with the third tooth portion 621 of the small tooth of the second gear 62, the first tooth portion 611 of the large tooth is engaged with the third tooth portion 621 of the small tooth, so that the angular velocity of the second gear 62 is increased to rotate at the velocity R2, the first gear 61 drives the detection body 17 through the connecting rod 14 to rotate together at the velocity R2, the rotation velocity R2 of the detection body 17 is greater than the rotation velocity R1 of the transmission gear, when the detection body 17 rotates at the velocity R2, the detection body 17 contacts with the detection unit in the image forming apparatus and causes the detection unit to rotate at the velocity N2, wherein N2 is greater than N1; a control unit (not shown) in the image forming apparatus can recognize a change in rotation of the detection unit and output a signal; so that the image forming apparatus can output different signals according to the rotation change of the detection body 17 in the developing cartridge, thereby recognizing the specific model of the developing cartridge; in the present embodiment, when the first tooth portion 611 is engaged with the third tooth portion 621, the detecting body 17 is kept in contact with the detecting unit in the image forming apparatus at all times. When the first tooth portion 611 is disengaged from the third tooth portion 621, the first gear 61 and the second gear 62 are disengaged from each other and stopped at the end position, and when the first gear 61 continues to receive the driving force and continues to rotate, the second gear 62 is not rotated following the first gear 61 due to the second gear 61 being disengaged from the first gear 61, and the detecting body 17 is not rotated together with the second gear 62 and stopped at the end position, so that the detecting body 17 completes the detection.

EXAMPLE III

Next, a third embodiment will be described, and as shown in fig. 5 and 8, this embodiment is different from the first embodiment in the structure for transmitting the driving force to the detected unit. In the present embodiment, the detection unit includes a first gear 71, a second gear 72, a third gear 73, a fourth gear 74, a fifth gear 75, a connecting rod 14, and a detecting body 17. The first gear 71, the second gear 72, the third gear 73, the fourth gear 74 and the fifth gear 75 are provided on the driving side 101, the detecting body 17 is provided on the detecting side 102, both ends of the connecting rod 14 are respectively supported by the housing 1, and the connecting rod 14 has a first end protruding from the driving side 101 and a second end protruding from the detecting side 102, in this embodiment, the connecting rod 14 is provided in the housing 1, the fifth gear 75 is provided at the first end, and the detecting body 17 is provided at the second end. In another embodiment, the connecting rod 14 is disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 14.

The first gear 71 is fixed on one side of the stirring rack 50 on the driving side 101 and rotates along with the rotation of the stirring rack 50, the first gear 71 is of a full-tooth structure, the second gear 72 is a tooth-missing gear, the toothed part of which can be meshed with the gear teeth of the first gear 71, the third gear 73 can be meshed with the second gear 72 and rotates along with the second gear 72, in other preferred embodiments, the third gear 73 can also be a gear rotating coaxially with the second gear 72, the fifth gear 75 comprises a first tooth portion 751 and a second tooth portion 752, the first tooth portion 751 and the second tooth portion 752 are of a full-tooth structure, wherein the first tooth portion 751 is meshed with the third gear 33, so that the fifth gear 75 rotates along with the third gear 73 at a first speed R1; the fourth gear 74 includes a third tooth 741 and a fourth tooth 742, the third tooth 741 is engageable with the first gear 71 to cause the fourth gear 74 to rotate with the first gear 71, and the fourth tooth 742 is engageable with the fifth gear 75 to cause the fifth gear 75 to rotate at the second speed R2. Wherein the second speed R2 is greater than the first speed R1.

The detection process of the detected unit according to the present invention will be described in detail with reference to the accompanying drawings. When the stirring frame 50 starts to drive the first gear 71 to rotate, the first gear 71 rotates at a first speed N1, the second gear 72 is not meshed with the first gear 71, and the second gear 72 does not rotate along with the first gear 71; so that when the first gear 71 further rotates, the first gear 71 is engaged with the second gear 72, the first gear 71 rotates the second gear 72, the third gear 73 engaged with the second gear 72 rotates following the second gear 72, the first tooth portion 751 of the fifth gear 75 is engaged with the third gear 73 and rotates following the third gear 73 at the rotation speed R1, the fifth gear 75 rotates the detecting body 17 together at the speed R1 by the connecting rod 14, the detecting body 17 can contact and apply a force to the detecting unit in the image forming apparatus, the detecting unit rotates at the speed N1 after receiving the force of the detected portion, the control unit (not shown) in the image forming apparatus recognizes the rotation of the detecting unit and outputs a signal, the protrusions 171 can be provided in plural number, spaced apart along the circumferential direction of the detecting body 17, and when the protrusions 171 are provided in plural number, the detecting unit in the image forming apparatus can be contacted with and rotated forcibly, thereby outputting the signal a plurality of times; when the first gear 71 drives the second gear 72 to rotate further, the first gear 71 is disengaged from the second gear 72, at this time, the toggle part of the first gear 71 toggles the start protrusion of the fourth gear 74, so that the first gear 71 is engaged with the fourth gear 74, the fourth gear 74 rotates along with the first gear 71, the fourth tooth part 742 of the fourth gear 74 is engaged with the second tooth part 752 of the fifth gear 75 to drive the fifth gear 75 to rotate at the speed R2, so that the speed of the second gear 72 is increased, the first gear 71 drives the detecting body 17 to rotate at the speed R2 together through the connecting rod 14, when the detecting body 17 rotates at the speed R2, the detecting body 17 contacts with the detecting unit in the image forming apparatus and drives the detecting unit to rotate at the speed N2, wherein N2 is greater than N1; a control unit (not shown) in the image forming apparatus can recognize a change in rotation of the detection unit and output a signal; so that the image forming apparatus can output different signals according to the rotation change of the detection body 17 in the developing cartridge, thereby recognizing the specific model of the developing cartridge; in the present embodiment, when the first gear 71 is meshed with the second gear 72, the detecting body 17 is kept in contact with the detecting unit in the image forming apparatus at all times. When the first gear 71 is disengaged from the second gear 72, the second gear 72 is disengaged from the first gear 71 and stops rotating, when the first gear 71 continues to receive the driving force and continues to rotate, the third tooth portion 741 of the fourth gear 74 is engaged with the first gear 71, and at this time, the detecting body 17 is kept in contact with the detecting unit in the image forming apparatus, and when the third tooth portion 741 of the fourth gear 74 is disengaged from the first gear 71, the fourth gear 74 no longer follows the rotation of the first gear 71 because of being disengaged from the first gear 71, the fifth gear 75 no longer follows the rotation of the fourth gear 74, and the detecting body 17 no longer rotates together with the fifth gear 75 and stops at the end position, and the detecting body 17 completes the detection.

Example four

With respect to the above embodiments, the structures of the detected unit and the detecting side 102 in the present embodiment are different, and the following is specifically introduced:

as shown in fig. 14 to 17, in the present embodiment, a second protecting cover 20 is further disposed on the detection side 102, the detected unit further includes a contact member 18 and a second elastic member 19, the second elastic member 19 is disposed between the contact member 18 and the housing 1, and the detection body 17 can actuate the contact member 18 to make the contact member 18 contact with or separate from the detection unit. The contact member 18 includes a trigger end 181 contactable with the detecting body 17 and a contact end 182 contactable with the detecting unit and detectable when the trigger end 181 is contacted with the detecting body 17. In this embodiment, the second cover 20 is provided with a mounting hole 201, the contact member 18 includes a rotary shaft 183, and the rotary shaft 183 is mounted in the mounting hole 201, so that the contact member 18 is mounted on the second cover 20, and when the protrusion 171 of the detecting body 17 touches the trigger end 181 of the contact member 18, the contact member 18 can rotate around the rotary shaft 183. When the number of the protrusions 171 on the detecting body 17 is plural, the protrusions 171 on the detecting body 17 may sequentially contact the trigger ends 181 of the contact member 18, so that the contact ends 182 may contact the detecting unit in the image forming apparatus plural times to force the detecting unit to rotate, completing the detection.

In one embodiment, the second protecting cover 20 is provided with a sliding slot, the contact member 18 is provided with a sliding rail, or the second protecting cover 20 is provided with a sliding rail, the contact member 18 is provided with a sliding slot, the sliding rail is arranged in the sliding slot and can slide relatively, so that the contact member 18 can slide relative to the second protecting cover 20 through the structure of the sliding slot and the sliding rail, when the protrusion 171 on the detecting body 17 touches the trigger end 181 of the contact member 18, the contact member 18 can slide relative to the second protecting cover 20, when the number of the protrusions 171 on the detecting body 17 is multiple, the protrusion 171 on the detecting body 17 can be in contact with the trigger end 181 of the contact member 18 in sequence, so that the contact member 18 can slide, so that the contact end 182 can be in contact with the detecting unit in the image forming apparatus multiple times to force the detecting unit to rotate, and thus completing the detection.

EXAMPLE five

Next, embodiment five will be described, and as shown in fig. 18 to 20, the developing cartridge of the present embodiment includes a casing 1 configured to store developer therein; the housing 1 is provided with a driving side 101 and a detecting side 102 opposed in a longitudinal direction, wherein the driving side 101 receives a driving force from the image forming apparatus. The driving side 101 is provided with an input gear 2', a developing roller gear 3', a powder feeding roller gear 4', a connecting gear 5', a stirring frame gear 6 'and a transmission gear 7'; the input gear 2' is used for receiving the driving force from the image forming device, and the developing roller gear 3' is meshed with the input gear 2' and is arranged at one end of the developing roller 30 and drives the developing roller 30 to rotate; the powder feeding roller gear 4' is meshed with the input gear 2', is arranged at one end of the powder feeding roller 40 and drives the powder feeding roller 40 to rotate, the connecting gear 5' is meshed with the input gear 2', the stirring frame gear 6' is meshed with the connecting gear 5', and the transmission gear 7' is meshed with the stirring frame gear 6', so that the driving force is transmitted to the stirring frame gear 6' and the transmission gear 7' from the input gear 2 '; the stirring rack gear 6' is arranged at one end of the stirring rack 50 and drives the stirring rack 50 to rotate, the stirring rack 50 is positioned in the shell 1, two ends of the stirring rack 50 are respectively supported by the shell 1 and used for stirring the developer positioned in the shell 1, and the structure of the stirring rack 50 can be the same as that of a common structure in the prior art.

As shown in fig. 19 to 22, the detection side 102 is provided with a detected unit including a side cover 81, a first elastic member 82, a connecting rod 83, a rotating member 84, a detection body 85, and a cover member 86; the first protective cover 81, the first elastic member 82, the rotating member 84, the detecting body 85, and the cover member 86 are provided on the detection side 102. The two ends of the connecting rod 84 are respectively supported by the housing 1 and have a first end protruding from the driving side 101 and a second end protruding from the detecting side 102. in the present embodiment, the connecting rod 84 is disposed in the housing 1, the transmission gear 7 is disposed at the first end of the connecting rod 83, and the rotating member 84 is disposed at the second end of the connecting rod 83. The connecting rod 83 is farther from the driving force receiving member in the width direction of the housing 1 relative to the agitator frame 50. Wherein, the transmission gear 7' is a full-tooth gear, which reduces the difficulty of production and design. In another embodiment, the connecting rod 83 may be disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 83.

As shown in fig. 23, the side cover 81 is made of a resin material and detachably mounted to the detection side 102 of the housing 1, and as shown in the figure, the side cover 81 is provided with a flat surface 811, a slope 812, an initial stopper portion 813, and a final stopper portion 814, the initial stopper portion 813 being configured as a projection projecting from the flat surface 811, the flat surface 811 extending around the mounting hole 815; the inclined plane 812 continuously extends from the plane 811, and is inclined downward from the plane 811; the termination stopper 814 is configured to be formed as a rib.

As shown in fig. 22 and 25, one end of first elastic member 82 abuts detection body 85, and the other end abuts cover member 86. One end of the rotating member 84 is disposed at the second end of the connecting rod 83, the other end of the rotating member 84 abuts against the detecting body 85, a groove 841 and a fixing column are disposed on the inner circumference of the rotating member 84, the groove 841 is configured to be disposed around the positioning column 844, a first limiting wall 842 and a second limiting wall 843 are disposed at the initial position and the final position of the groove 841 respectively, and in one embodiment, the rotating member 84 and the connecting rod 83 are integrally configured, so that the strength of the assembly is increased, and the assembly is convenient.

As shown in fig. 24, detection body 85 is provided between rotation member 84 and cover member 86, and detection body 85 includes a disk-shaped main body portion 851, an extension post 852 and a guide post 853 extending from one surface of main body portion 851, a fixing post 854 extending from the other surface of main body portion 851, and a protrusion 855 detectable by a detection unit of the image forming apparatus; one end of the extending column 852 is sleeved on the positioning column 844 of the rotating member 84 and can move in the axial direction relative to the rotating member 84, a limiting column 856 extends on the outer circumference of the extending column 852, the guiding column 853 abuts against the side cover 81, and the limiting column 856 can abut against the first limiting wall 842 or the second limiting wall 843. The protrusions 855 extend from the surface of the detection body 85, and the protrusions 855 of the detected part may be provided in plural numbers, spaced apart along the circumferential direction of the detection body 85.

As shown in fig. 21, 23 and 26, the detected unit further includes a second elastic member 87 and a contact member 88, the bezel 81 is further provided with a slot 816 and a first hook 817, two sides of the slot 816 are provided with slide rails 818, the contact member 88 is correspondingly provided with a slide slot 883 and a second hook 884, the slide rails 818 are disposed in the slide slots 883 and can slide relatively, so that the contact member 88 can slide relative to the bezel 81 through the structure of the slide slots 883 and the slide rails 818, the contact member 88 further includes trigger ends 881 and a contact end 882, when a protrusion 855 on the detecting body 85 triggers the trigger end 881 of the contact member 88, the contact member 18 can slide relative to the bezel 81, one end of the second elastic member 87 is fixedly connected to the first hook 817, the other end of the second elastic member 87 is fixedly connected to the second hook 884, when the number of protrusions 855 on the detecting body 85 is multiple, the protrusions 855 on the detecting body 85 can sequentially contact the trigger end 881 of the contact member 88, the second elastic member 87 drives the contact member 88 to slide back and forth, so that the contact end 882 can contact with the detecting unit in the image forming apparatus multiple times to force the detecting unit to rotate, and detection is completed.

The detection process of the detected unit according to the present invention will be described in detail with reference to the accompanying drawings. When the detection body is located at the initial position, the limiting column 856 on the detection body 85 abuts against the first limiting wall 842 on the rotating member 84, and the guiding column 853 abuts against the initial limiting part 813 on the side cover 81 and is located on the plane 811 of the side cover 81; when transmission gear 7 'starts rotating, first stopper wall 842 rotates away from stopper pin 856, and detection body 85 cannot receive the driving force from transmission gear 7', so detection body 85 cannot rotate following transmission gear 15; the second limit wall 843 abuts against the limit post 856 of the detecting body 85 only when the transmission gear 7' rotates by a predetermined angle, so that when the transmission gear 7' further rotates, the transmission gear 7' can rotate the rotary member 84 together via the connecting rod 83, the guide post 853 abuts against the plane 811 and receives the driving force transmitted from the rotary member 84 to rotate the detecting body 85 together, the detecting body 85 rotates together with the rotary member 84 at the rotation speed R1, when the detecting body 85 rotates at the speed R1, the detecting body 85 can contact the trigger end 881 of the contact member 88 and move the contact member 88 along the slide rail 818, at this time, the contact end 882 of the contact member 88 contacts and applies a force to the detecting unit in the image forming apparatus, the detecting unit rotates at the speed N1 upon receiving the force of the detecting body 85, and the control unit (not shown) in the image forming apparatus recognizes the rotation of the detecting unit, when the projection 855 is provided in plural, the contact member 88 may be brought into contact with the detection unit in the image forming apparatus plural times to force the detection unit to rotate when rotated along the plane 811, thereby outputting the signal plural times; when transmission gear 7' further rotates detection body 85, guide column 853 of detection body 85 moves away from plane 811 and abuts against inclined plane 812, and since inclined plane 812 is inclined closer to housing 1 with respect to plane 811, detection body 85 loses stable support, and at this time first elastic member 82 applies elastic force to the detection body, forcing detection body 85 to further rapidly rotate along inclined plane 812 and at the same time detection body 85 moves toward the side closer to side cover 81; the stopper pin 856 is disengaged from the rotary member 84, and the rotation speed R2 of the detection body 85 is greater than the rotation speed R1 of the transmission gear 7' due to the elastic member 84; at this time, when the detecting body 85 rotates at the speed R2, the detecting body 85 comes into contact with the trigger end 881 of the contact member 88 and drives the contact member 88 to move along the slide rail 818, the contact end 882 of the contact member 88 comes into contact with the detection unit in the image forming apparatus and causes the detection unit to rotate at the speed N2, and the control unit (not shown) in the image forming apparatus can recognize the change in the rotation of the detection unit and output a signal; so that the image forming apparatus can output different signals according to the change in the movement of the contact member 88 in the developing cartridge, thereby recognizing the specific model of the developing cartridge; in the present embodiment, the contact member 88 is kept in contact with the detection unit in the image forming apparatus at all times as the detecting body 85 rotates along the inclined surface 812. R2 is greater than R1 in this embodiment; when guide column 853 of detection body 85 rotates away from inclined surface 812, detection body 85 stops rotating, and guide column 853 of detection body 85 abuts against end limit portion 814 and is limited at the end position; at this time, stopper pin 856 of detector 85 is completely disengaged from groove 841 of rotary member 84 and does not contact first stopper wall 842 and second stopper wall 843, and when rotary member 84 continues to receive the driving force transmitted from transmission gear 7 and continues to rotate, detector 85 is disengaged from rotary member 84, detector 85 does not rotate together with rotary member 84 and stops at the end position, and contact member 88 does not move any more, thereby completing the detection.

EXAMPLE six

The following describes a sixth embodiment, and with respect to the fifth embodiment, the detected unit and the detecting side 102 in this embodiment have different structures, which are specifically described as follows:

as shown in fig. 27 to 32, the detection side 102 is provided with a detected unit including a side cover 91, a first elastic member 92, a connecting rod 93, a rotating member 94, a detection body 95, and a cover member 96; the first protective cover 91, the first elastic member 92, the rotating member 94, the detecting body 95, and the cover member 96 are provided on the detection side 102. The two ends of the connecting rod 93 are respectively supported by the housing 1, and have a first end protruding from the driving side 101 and a second end protruding from the detecting side 102. in the present embodiment, the connecting rod 93 is disposed in the housing 1, the transmission gear 7' is disposed at the first end of the connecting rod 93, and the rotating member 94 is disposed at the second end of the connecting rod 93. The connecting rod is farther from the driving force receiving member in the width direction of the housing relative to the agitator frame 50. Wherein, the transmission gear is full tooth gear, reduces production and design degree of difficulty. In another embodiment, the connecting rod 93 may be disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 93.

As shown in fig. 29, the side cover 91 is made of a resin material, detachably mounted to the detection side 102 of the housing 1, and as shown in the drawings, the side cover 91 is provided with a flat surface 911, a slope 912, an initial stopper portion 913, and a final stopper portion 914, the initial stopper portion 913 being configured as a projection projecting from the flat surface 911, the flat surface 911 extending around the mounting hole 915; the inclined plane 912 continuously extends from the plane 911 and inclines downwards from the plane 911; the termination-stopper 914 is configured as a rib.

As shown in fig. 28 and 30, one end of the first elastic member 92 abuts on the detection body 95, and the other end abuts on the cover member 96. One end of a rotation member 94 is disposed at the second end of the connecting rod 93, the other end of the rotation member 94 is connected to the detecting body 95, a groove 941 and a positioning post 944 are disposed on the inner circumference of the rotation member 94, the groove 941 is configured to be disposed around the positioning post 944, and a first limiting wall 942 and a second limiting wall 943 are disposed at the start position and the end position of the groove 941 respectively.

As shown in fig. 30, a detection body 95 is provided between the rotation member 94 and the cover member 96, the detection body 95 including a plate-shaped main body portion 951, an extension column 952 and a guide column 953 extending from one surface of the main body portion 951, and a protrusion 955 detectable by a detection unit of the image forming apparatus; one end of the extension column 952 is sleeved on the positioning column 944 of the rotating member 94 and can move in the axial direction relative to the rotating member 94, a limiting column 956 extends from the outer circumference of the extension column 952, the guiding column 953 abuts against the edge cover 91, and the limiting column 956 can abut against the first limiting wall 942 or the second limiting wall 943. The protrusions 955 extend from the surface of the detection body 95, and a plurality of protrusions 955 of the detection section may be provided and distributed at intervals in the circumferential direction of the detection body 95.

As shown in fig. 31 and 32, the detected unit further includes a second elastic member 97 and a contact member 98, the edge cover 91 is further provided with a blocking portion 918 and a first hook portion 917, the contact member 98 includes a trigger end 981 and a contact end 982, the contact member 98 can move relative to the edge cover 91 when the protrusion 955 on the detecting body 95 touches the trigger end 981 of the contact member 98, one end of the second elastic member 97 is fixedly connected with the first hook portion 917, the contact member 98 includes a second hook portion 984, the other end of the second elastic member 97 is fixedly connected with the second hook portion 984, when the detecting body 95 is located at the initial position, the contact member 98 abuts against the blocking portion 918, at this time, the second elastic member 97 pulls the contact member 98 back, the blocking portion 918 blocks the movement of the contact member 98, when the number of the protrusions 955 on the detecting body 95 is plural, the protrusions 955 on the detecting body 95 can sequentially contact the trigger end 981 of the contact member 98, the second elastic member 97 drives the contact member 98 to reciprocate, so that the contact end 982 can contact with the detecting unit in the image forming apparatus for multiple times to force the detecting unit to rotate, thereby completing the detection.

It should be noted that the contact member 98 further comprises a rotation shaft 983, the trigger end 981 and the contact end 982 of the contact member 98 can rotate around the rotation shaft 983, and when the protrusion 955 on the detecting body 95 touches the trigger end 981 of the contact member 98, the contact member 98 can rotate around the rotation shaft 983, thereby triggering the rotation of the detecting unit. In the present embodiment, the rotation shaft is inclined 983, specifically, the rotation shaft 983 is inclined with respect to the axial direction L (longitudinal direction) of the developing roller 30 by an inclination angle α in the range of 15 ° to 45 °, and the contact member 98 is prevented from breaking due to the strength of the contact member 98 being reduced by the overall body size of the contact member 98 while ensuring the detection function.

In this embodiment, the side cover 91 is provided with a fixing groove 916, one end of the rotation shaft 983 is provided with a stopper, and the rotation shaft 983 is inserted into the fixing groove 916, and at this time, the stopper restricts the rotation shaft 983 from being separated from the fixing groove 916. In other embodiments, the fixing groove is disposed on the contact member, and the rotation shaft is disposed on the side cover, and the fixing manner is the same as that in this embodiment, which is not described herein again.

The detection process of the detected unit according to the present invention will be described in detail with reference to the accompanying drawings. When the detection body is at the initial position, the stopper post 956 of the detection body 95 abuts against the first stopper wall 942 of the rotary member 94, and the guide post 953 abuts against the initial stopper portion 913 of the side cover 91 and is positioned on the flat surface 911 of the side cover 91; when the transmission gear 7 'starts to rotate, the first stopper wall 942 rotates away from the stopper post 956, and the detecting body 95 cannot receive the driving force from the transmission gear 7', so the detecting body 95 cannot rotate following the transmission gear 15; the second limit wall 943 abuts on the limit post 956 of the detecting body 95 only when the transmission gear 7' rotates by a predetermined angle, so that when the transmission gear 7' further rotates, the transmission gear 7' can rotate the rotary member 94 together via the connecting rod 93, the guide post 953 abuts on the plane 911 and receives the driving force transmitted from the rotary member 94 to rotate the detecting body 95 together, the detecting body 95 rotates together with the rotary member 94 at the rotation speed R1, when the detecting body 95 rotates at the speed R1, the detecting body 95 can contact the trigger end 981 of the contact member 98 and rotate the contact member 98 around the rotation shaft 983, the contact end 982 of the contact member 98 contacts with and applies a force to the detecting unit in the image forming apparatus, the detecting unit rotates at the speed N1 upon receiving the force of the detecting body 95, and a control unit (not shown) in the image forming apparatus recognizes the rotation of the detecting unit, when the protrusion 955 is provided in plural, the contact member 98 may contact the detection unit in the image forming apparatus to force the detection unit to rotate a plurality of times when rotating along the plane 911, thereby outputting the signal a plurality of times; when the transmission gear 7' further rotates the detection body 95, the guide post 953 of the detection body 95 is separated from the plane 911 and abuts against the inclined surface 912, and the inclined surface 912 is inclined toward the housing 1 with respect to the plane 911, so that the detection body 95 is unstably supported, and at this time, the first elastic member 92 applies an elastic force to the detection body, and the detection body 95 is forced to further rapidly rotate along the inclined surface 912 and simultaneously the detection body 95 moves toward the side close to the side cover 91; the stopper post 956 is disengaged from the rotary member 94, and the rotational speed R2 of the detecting body 95 is greater than the rotational speed R1 of the transmission gear 7' due to the action of the elastic member 94; at this time, when the detecting body 95 rotates at the speed R2, the detecting body 95 comes into contact with the trigger end 981 of the contact member 98 and rotates the contact member 98 about the rotation shaft 983, the contact end 982 of the contact member 98 comes into contact with the detection unit in the image forming apparatus and causes the detection unit to rotate at the speed N2, the control unit (not shown) in the image forming apparatus can recognize a change in the rotation of the detection unit and output a signal; so that the image forming apparatus can output different signals according to the change in the movement of the contact member 98 in the developing cartridge, thereby recognizing the specific model of the developing cartridge; in the present embodiment, the contact member 98 is kept in contact with the detection unit in the image forming apparatus at all times when the detection body 95 rotates along the inclined surface 912. R2 is greater than R1 in this embodiment; when the guide post 953 of the detection body 95 rotates away from the inclined surface 912, the detection body 95 stops rotating, and the guide post 953 of the detection body 95 abuts against the end stopper 914 and is stopped at the end position; at this time, stopper post 956 of detector 95 is completely disengaged from groove 941 of rotary member 94 and does not contact first stopper wall 942 and second stopper wall 943, and when rotary member 94 continues to receive the driving force transmitted from transmission gear 7' and continues to rotate, detector 95 is disengaged from rotary member 94, detector 95 no longer rotates together with rotary member 94 and stops at the end position, and contact member 98 no longer moves, thereby completing the detection.

EXAMPLE seven

The seventh embodiment is described below, and the structure of power transmission in the seventh embodiment is different from that in the sixth embodiment, specifically described below:

as shown in fig. 33 to 37, the detection side 102 is provided with a detected unit including a side cover 91, a first elastic member 92, a connecting rod 93, a rotating member 94, a detection body 95, and a cover member 96; the first protective cover 91, the first elastic member 92, the rotating member 94, the detecting body 95, and the cover member 96 are provided on the detection side 102. Both ends of the connecting rod 93 are respectively supported by the housing 1, and have a first end portion 931 protruding from the driving side 101 and a second end portion 933 protruding from the detection side 102. in the present embodiment, the connecting rod 93 is provided in the housing 1, the connecting rod 93 has a first end portion 931 and a second end portion 933, the transmission gear 7' is provided with the first end portion 931 of the connecting rod 93, and the rotary member 94 is provided with the first end portion 931 of the connecting rod 93. The connecting rod 93 is farther from the driving force receiving member in the width direction of the housing 1 relative to the agitator frame 50. Wherein, the transmission gear 7' is a full-tooth gear, which reduces the difficulty of production and design. In another embodiment, the connecting rod 93 may be disposed outside the housing 1, facilitating installation and facilitating power transmission of the connecting rod 93.

As shown in fig. 37, the connecting rod 93 is configured as a cylindrical plastic body, and includes a cylindrical main body portion 931, a first end portion 932 and a second end portion 933, the first end portion 932 and the second end portion 933 both pass through the surface of the housing 1, the first end portion 932 is smaller than the main body portion to form a first step, the second end portion 933 is smaller than the main body portion to form a second step, in this embodiment, the first end portion 932 and the second end portion 933 are both formed as cylindrical structures, in other alternative embodiments, the first end portion 932 and/or the second end portion 933 may be formed as a polygonal cylinder structure or other irregular structures, specifically, the driving side 101 surface is provided with a first through hole 103 for communicating with the powder bin, the detecting side 102 surface is provided with a second through hole 104 for communicating with the powder bin, the first end portion 932 passes through the first through hole 103 and is exposed on the driving side 101 surface to be connected with the transmission gear 7', and the second end portion 933 passes through the second through hole 104 and is exposed on the detecting side 102 surface to be connected with the rotary member 94 of the detected unit And (4) connecting.

As shown in fig. 35-37, a protective sleeve 105 is further disposed inside the powder bin of the housing 1, a first protrusion 106 extends into the powder bin from the inner surface of the driving side 101, and a second protrusion 107 extends into the powder bin from the inner surface of the detecting side 102, wherein the first through hole 101 passes through the first protrusion 106, the second through hole passes through the second protrusion 107, the protective sleeve 105 is sleeved around the connecting rod 93 to isolate the connecting rod 93 from the carbon powder in the powder bin, one end of the protective sleeve 105 is sleeved outside the first protrusion 106 and does not rotate relative to the first protrusion 106, and the other end of the protective sleeve 105 is sleeved outside the second protrusion 107 and does not rotate relative to the second protrusion 107, i.e., the protective sleeve 105 does not rotate along with the connecting rod 93. The connecting rod 93 is isolated from the carbon powder in the powder bin through the protective sleeve 105, so that the carbon powder in the powder bin is prevented from obstructing the power transmission of the connecting rod 93.

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

Claims

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

a housing in which a developer can be accommodated;

the detection device is characterized by further comprising a detected unit, wherein the detected unit comprises a connecting rod, a detection body and a contact component;

2. A developing cartridge according to claim 1, wherein said connecting lever is provided in said casing, said connecting lever penetrating said casing in a length direction of said casing.

3. The developing cartridge according to claim 1, wherein the connecting lever is farther from the driving force receiving member with respect to the agitating frame in a width direction of the casing.

4. The developing cartridge according to claim 1, wherein the detected unit further includes a side cover, a first elastic member, a rotating member, and a cover member; the side cover, the first elastic member and the rotating member are all arranged on the other side of the shell, the rotating member is fixedly connected with the connecting rod and can rotate along with the connecting rod, the side cover is arranged between the detection body and the rotating member, and the first elastic member is arranged between the detection body and the cover member.

5. The developing cartridge according to claim 4, wherein the detecting body includes a disk-shaped main body, an extending column and a guide column extending from one surface of the main body, a fixing column extending from the other surface of the main body, and a protrusion; the extension column is sleeved on the rotating component and can move in the axial direction relative to the rotating component, a limiting column extends from the outer circumference of the extension column, the guide column is abutted against the side cover, the limiting column can be abutted against the rotating component, and the protrusion can rotate along with the detection body and touch the contact component.

6. The developing cartridge according to claim 4, wherein the detected unit further includes a second elastic member, the edge cover is provided with a slot and a first hook, sliding rails are provided on both sides of the slot, the contact member is correspondingly provided with a sliding groove and a second hook, the sliding rails are provided in the sliding groove and can slide relatively, and both ends of the second elastic member are respectively connected with the first hook and the second hook.

7. A developing cartridge according to claim 1, wherein said detected unit further includes a second elastic member provided between said contact member and said casing, said contact member including a rotation shaft, said contact member being rotatable and detected by said detecting unit when said detecting body touches said contact member.

8. The developing cartridge according to claim 7, wherein the rotation shaft is inclined with respect to a longitudinal direction of the casing by an inclination angle α.

9. The developing cartridge according to claim 1, further comprising a first transmission lever, a second transmission lever, a first transmission gear, a second transmission gear, and a third transmission gear; the first transmission gear is used for receiving the driving force, the first transmission gear and the second transmission gear are arranged at two ends of the first transmission rod, so that the second transmission gear follows the first transmission gear to rotate, the third transmission gear follows the second transmission gear to rotate, the third transmission gear is arranged at one end of the second transmission rod, the second transmission rod follows the third transmission gear to rotate, and the connecting rod can follow the second transmission rod to rotate.

10. The developing cartridge as claimed in claim 1, wherein a protective sleeve is further provided in said casing, said protective sleeve being fitted around said connecting rod.