compact case

Abstract

The application provides a toner cartridge, which comprises a cartridge body, a rotating member, a driving force receiving head, a gear train and a detection mechanism. The cartridge body has a toner accommodating portion. The rotating member is rotatably supported between a first end wall and a second end wall of the cartridge body. The driving force receiving head is arranged on the first end wall and is used for receiving a rotating driving force. A tooth portion is arranged on a peripheral wall of the driving force receiving head. The gear train is arranged on the first end wall and is engaged with the tooth portion. The detection mechanism is arranged on the second end of the cartridge body and comprises a rotating wheel which is rotatably supported on the cartridge body. The detection mechanism further comprises a driving source which drives the rotating wheel to rotate. The driving source is independent of a rotating force transmission system which is composed of the driving force receiving head, the gear train and the rotating member. The toner cartridge can reduce the torque generated by rotation during work and ensure that the toner cartridge can be effectively recognized by an imaging device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic imaging equipment consumables, in particular to a toner cartridge. BACKGROUND

[0002] Imaging equipment usually uses a detachable toner cartridge to provide carbon powder for developing an electrostatic latent image on a photosensitive member and then transferring the image to a medium such as paper to form a visible image.

[0003] A current toner cartridge includes a cartridge body, a driving head and a detection gear with missing teeth are arranged at two axial ends of the cartridge body respectively, the cartridge body has a developer accommodating chamber for accommodating a developer and a powder outlet, a stirring frame for stirring the developer is arranged in the developer accommodating chamber, a developing roller is arranged at the powder outlet, a gear train for driving the stirring frame and the developing roller to rotate is arranged outside the cartridge body, a first stirring gear is arranged at a first axial end of the stirring frame, the driving head and the first stirring gear are engaged with an intermediate transmission gear and transmit a rotating driving force to the stirring frame, a second stirring gear is arranged at a second axial end of the stirring frame, the detection gear is engageable with the second stirring gear, and a triggering part for triggering a contacted member in the imaging equipment is arranged on the detection gear. When a new toner cartridge is installed into the imaging equipment, the driving head, the first stirring gear and the second stirring gear form a driving gear train which is driven to rotate and drives the detection gear engaged therewith to rotate, the triggering part on the detection gear rotates and triggers the contacted member in the imaging equipment, and the imaging equipment detects that the toner cartridge is new. When the detection gear rotates to the position where the missing teeth part faces the second stirring gear, the detection gear is no longer engaged with the second stirring gear and no longer rotates with the second stirring gear.

[0004] Since the driving head drives the developing roller, the powder feeding roller and the stirring frame to rotate, the stirring blades on the stirring frame continuously stir the carbon powder in the powder bin, and the stirring frame also drives the detection gear on the other side to rotate to realize the detection and identification of the imaging equipment. After a series of rotation transmission, the rotating torque on the driving force receiving head is large, which can easily damage the transmission head in the imaging equipment and cause the imaging equipment to fail to accurately and effectively identify the toner cartridge. Moreover, the current transmission mode has a long transmission chain, which can easily affect the accuracy and stability of the detection of the toner cartridge. SUMMARY

[0005] The present application aims to provide a toner cartridge which can reduce the torque generated during rotation in the working process and ensure that the toner cartridge can be effectively identified by the imaging equipment.

[0006] To achieve the above object, the present application provides a toner cartridge, comprising a cartridge body, a rotating member, a driving force receiving head, a gear train and a detection mechanism, the cartridge body has a toner accommodating portion, the rotating member is rotatably supported between a first end wall and a second end wall of the cartridge body. The driving force receiving head is arranged on the first end wall for receiving a rotating driving force, and a tooth portion is arranged on a peripheral wall of the driving force receiving head. The gear train is arranged on the first end wall, and the gear train is engaged with the tooth portion. The detection mechanism is arranged on the second end of the cartridge body, and the detection mechanism comprises a rotating wheel which is rotatably supported on the cartridge body. The detection mechanism further comprises a driving source which drives the rotating wheel to rotate, and the driving source is independent of a rotating force transmission system composed of the driving force receiving head, the gear train and the rotating member.

[0007] As can be seen from the above solution, the driving source independent of the rotating force transmission system composed of the driving force receiving head, the gear train and the rotating member is arranged to provide the rotating driving force to the rotating wheel, so that the torsion force received by the rotating members in the toner cartridge is greatly reduced, and the force transmission components in the toner cartridge or the transmission head of the image forming device are prevented from being damaged due to excessive torsion force.

[0008] A preferred solution is that the driving source comprises a motor which drives the rotating wheel to rotate.

[0009] As can be seen from the above solution, the motor can stably provide the rotating driving force to the rotating wheel, and the driving force is independent of the rotating force transmission system on the toner cartridge including the driving force receiving head, so that the components in the rotating force transmission system are not damaged, and the toner cartridge can be effectively identified.

[0010] A further solution is that the detection mechanism further comprises a power supply and a switch assembly, and the switch assembly is used to turn on or turn off the electrical connection between the power supply and the motor.

[0011] As can be seen from the above solution, by arranging the power supply and the switch assembly, the electrical connection between the power supply and the motor can be turned on during the detection process of the detection mechanism, and the electrical connection between the power supply and the motor can be turned off after the detection is completed, so that the turning on and turning off of the power supply and the motor is realized by a mechanical method.

[0012] A further solution is that the switch assembly comprises a conductive torsional spring which is arranged at the second end of the cartridge body; the power supply is provided with a first electrode and a second electrode, the motor is provided with a first access end and a second access end, the first access end is electrically connected with the second electrode, and the second access end is located at one end of the motor close to the rotating wheel; a first torsional arm of the conductive torsional spring is electrically connected with the first electrode, and a second torsional arm of the conductive torsional spring can be switched between a position in contact with the second access end and a position separated from the second access end.

[0013] As can be seen from the above solution, by switching the position of the second torsional arm of the conductive torsional spring, the turning on and turning off of the circuit is realized, which is convenient to operate and easy to realize.

[0014] Further, the switch assembly further comprises a clamping hook, a conductive trigger part and a power-off trigger part. The clamping hook limits the second torsion arm at a position away from the second access end. The conductive trigger part is arranged at an axial end of the rotating member, and the second torsion arm can abut against the conductive trigger part to release the limitation on the second torsion arm. The power-off trigger part is arranged at a side of the rotating wheel facing the motor. When the second torsion arm contacts the second access end, the second torsion arm is located in the rotating path of the power-off trigger part, and the power-off trigger part can abut against the second torsion arm and push the second torsion arm to a position away from the second access end.

[0015] Therefore, by arranging the conductive trigger part at the axial end of the rotating member, the second torsion arm is driven to move towards the motor and contact the second access end, so as to realize the connection of the circuit. After the motor is connected, the motor drives the rotating wheel to rotate by a preset angle, and the installation detection of the powder box is completed. When the rotating wheel rotates to the preset angle, the power-off trigger part applies a force to the second torsion arm, so as to force the second torsion arm to move away from and disconnect the second access end.

[0016] Further, the conductive trigger part is provided with a receiving groove and a guide slope. The end of the second torsion arm is located in the receiving groove. The guide slope is connected with the bottom wall of the receiving groove. The guide slope is arranged on the end wall of the rotating member and is arranged at an acute angle with the central axis of the rotating member. With the rotation of the rotating member, the second torsion arm moves along the guide slope. After the guide slope forces the second torsion arm to be separated from the clamping hook, the second torsion arm moves towards the second access end under the action of the restoring force and abuts against the second access end.

[0017] Therefore, the guide slope cooperates with the clamping hook. During the rotation of the rotating member, the guide slope applies a force to the second torsion arm, so as to force the second torsion arm to move along the guide slope and be separated from the clamping hook.

[0018] A preferred scheme is that the second end of the box body is provided with an end cover. The rotating wheel is installed on the inner wall of the end cover. The rotating wheel is provided with a trigger part. The trigger part is exposed from the end cover. The clamping hook is located on the inner wall of the end cover. The inner wall of the end cover is further provided with a first torsion spring mounting column. The conductive torsion spring is sleeved on the first torsion spring mounting column.

[0019] Further, the inner side wall of the rotating wheel facing the motor is provided with a connecting shaft. The drive shaft of the motor is limited and matched with the connecting shaft. The power-off trigger part protrudes radially and outwardly from the outer peripheral wall of the connecting shaft. The outer peripheral wall of the connecting shaft is provided with a stop protrusion close to the inner side wall of the rotating wheel. The inner wall of the end cover is further provided with a second torsion spring mounting column. A limiting torsion spring is sleeved on the second torsion spring mounting column. The third torsion arm of the limiting torsion spring is connected to the end cover. The fourth torsion arm of the limiting torsion spring is located in the rotating path of the stop protrusion to hinder the rotation of the rotating wheel.

[0020] Therefore, the limiting torsion spring is arranged to damp the rotating wheel during rotation, so that the rotating wheel can stop rotating in time under the resistance after power-off.

[0021] One preferred scheme is that the detection mechanism further comprises a mounting seat, the box body is provided with a receiving groove, and the motor is fixed in the receiving groove through the mounting seat.

[0022] Therefore, the space on the box body is reasonably utilized, the capacity of the toner cartridge is not affected, and the size of the toner cartridge is not increased.

[0023] Further, the motor is a speed-adjustable direct current motor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural diagram of the first embodiment of the toner cartridge of the present application.

[0025] Figure 2 is an exploded structural diagram of the conductive end of the first embodiment of the toner cartridge of the present application.

[0026] Figure 3 is a partial view of the first embodiment of the toner cartridge of the present application after the second end cover is hidden.

[0027] Figure 4 is a sectional view of the first embodiment of the toner cartridge of the present application.

[0028] Figure 5 is a state diagram of the detection mechanism in the first position in the first embodiment of the toner cartridge of the present application.

[0029] Figure 6 is a state diagram of the detection mechanism in the second position in the first embodiment of the toner cartridge of the present application.

[0030] Figure 7 is a state diagram of the detection mechanism in the third position in the first embodiment of the toner cartridge of the present application.

[0031] Figure 8 is a structural diagram of the second end cover and the detection mechanism in the second embodiment of the toner cartridge of the present application.

[0032] Figure 9 is an exploded structural diagram of the second end cover and the detection mechanism in the second embodiment of the toner cartridge of the present application.

[0033] Figure 10 is a structural diagram of the third embodiment of the toner cartridge of the present application.

[0034] Figure 11 is a partial view of the third embodiment of the toner cartridge of the present application after the second end cover is hidden.

[0035] Figure 12 is a structural diagram of the detection mechanism in the third embodiment of the toner cartridge of the present application.

[0036] Figure 13 is a sectional view of the third embodiment of the powder box of the present application.

[0037] Figure 14 is a sectional view of the third embodiment of the powder box of the present application. Figure 13 is a front view of the partial structure.

[0038] Figure 15 is a structural view of the fourth embodiment of the powder box of the present application.

[0039] Figure 16 is an exploded structural view of the fourth embodiment of the powder box of the present application.

[0040] Figure 17 is a partial view of the second end cover, the conductive torsion spring, the limiting torsion spring and the stirring frame in the fourth embodiment of the powder box of the present application.

[0041] Figure 18 is an assembly view of the second end cover, the conductive torsion spring, the limiting torsion spring, the motor and the stirring frame in the fourth embodiment of the powder box of the present application.

[0042] Figure 19 is a state view of the motor, the rotating wheel, the conductive torsion spring and the stirring frame in the fourth embodiment of the powder box of the present application when the second torsion arm of the conductive torsion spring is located at a position separated from the second access end of the motor in an initial state.

[0043] Figure 20 is a state view of the motor, the conductive torsion spring and the stirring frame in the fourth embodiment of the powder box of the present application when the second torsion arm of the conductive torsion spring is located at a position in contact with the second access end of the motor.

[0044] Figure 21 is a state view of the motor, the rotating wheel and the conductive torsion spring in the fourth embodiment of the powder box of the present application when the second torsion arm of the conductive torsion spring is separated from the second access end of the motor again after being in contact with the second access end of the motor.

[0045] The present application will be further described in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0046] First embodiment of the powder box:

[0047] Referring to Figure 1 and Figure 2 , the powder box comprises a box body 1, a first end cover 21, a second end cover 22, a rotating member 3, a driving force receiving head 10, a first gear train 4, a detection mechanism 5.

[0048] The first end cover 21 is fixed on the first end wall 11 of the box body 1, the second end cover 22 is fixed on the second end wall 12 of the box body 1, the first gear train 4 is located in the space surrounded by the first end cover 21 and the box body 1, and the detection mechanism 5 is located in the space surrounded by the second end cover 22 and the box body 1.

[0049] The rotating member 3 includes a developing roller 31, a powder feeding roller 32 and a stirring frame 33, etc., the cartridge 1 has a toner accommodating portion 13 and a powder outlet 14, the stirring frame 33 and the powder feeding roller 32 are both located in the toner accommodating portion 13, the developing roller 31 is located at the powder outlet 14, the powder feeding roller 32 and the developing roller 31 are arranged in parallel and the outer peripheral walls of the two rollers are in contact, and the powder feeding roller 32 is used to convey the toner in the toner accommodating portion 13 to the developing roller 31.

[0050] The rotating member 3 including the developing roller 31, the powder feeding roller 32 and the stirring frame 33, etc. are rotatably supported between the first end wall 11 and the second end wall 12 of the cartridge 1, the driving force receiving head 10 is arranged on the first end wall 11 and is used to receive the rotating driving force, the peripheral wall of the driving force receiving head 10 is provided with a tooth portion, and the first gear train 4 includes a developing roller gear 41, a powder feeding roller gear, a stirring frame gear and an intermediate transmission gear. The first gear train 4 is arranged on the first end wall 11 of the cartridge 1, the developing roller gear 41 is arranged at the first axial end of the developing roller 31, the powder feeding roller gear is arranged at the first axial end of the powder feeding roller 32, the stirring frame gear is arranged at the first axial end of the stirring frame 33, the developing roller gear 41, the powder feeding roller gear and the intermediate transmission gear are all in mesh with the tooth portion of the driving force receiving head 10, and the stirring frame gear is connected with the tooth portion of the driving force receiving head 10 through the intermediate transmission gear.

[0051] Referring to Figures 2 to 4 , the detection mechanism 5 is arranged on the second end wall 12, the detection mechanism 5 includes a driving source, a rotating wheel 51 and a rotating speed control assembly, in the embodiment, the driving source is a torsion spring 54, the elastic restoring force of the torsion spring 54 forces the rotating wheel 51 to rotate, the rotating speed control assembly is used to control the rotating speed of the rotating wheel 51, the rotating speed control assembly includes a tooth buckle 52 and a poking piece 53, and the rotating wheel 51 is rotatably supported on a first bearing plate 61 fixed to the second end wall 12. The rotating wheel 51 includes a one-way tooth portion 511 and a triggering portion 512, the one-way tooth portion 511 includes a plurality of teeth arranged in the circumferential direction, and the plurality of teeth are all located on the outer peripheral wall of the rotating wheel 51. A positioning opening 221 is through-arranged on the side wall of the second end cover 22 opposite to the second end wall 12, the triggering portion 512 is arranged at the end of the rotating wheel 51 away from the cartridge 1, the triggering portion 512 extends out of the second end cover 22 from the positioning opening 221, and the triggering portion 512 is used to trigger the contacted member in the image forming device.

[0052] The second end wall 12 is provided with a bearing plate assembly 6, which comprises a first bearing plate 61 and a second bearing plate 62 arranged along the width direction of the cartridge 1. The first bearing plate 61 is provided with a support column 611 extending from the bearing plate assembly 6 in the axial direction of the rotating wheel 51 away from the cartridge 1, and the rotating wheel 51 is sleeved on the support column 611 and can rotate around the support column 611. Meanwhile, the second end wall 12 is also provided with a positioning column 121 integrally formed with the cartridge 1, and the support column 611 is sleeved on the positioning column 121 and realizes accurate positioning of the rotating wheel 51. The second bearing plate 62 is also provided with a developing roller support hole 621 and a powder feeding roller support hole 622, and the second axial end of the developing roller 31 is supported in the developing roller support hole 621, and the second axial end of the powder feeding roller 32 is supported in the powder feeding roller support hole 622. The rotating wheel 51 is provided with a mounting groove 513, the opening of the mounting groove 513 faces the cartridge 1, and the torsional spring 54 is arranged in the mounting groove 513 and sleeved on the support column 611. One torsional arm of the torsional spring 54 is connected to the first bearing plate 61, and the other torsional arm of the torsional spring 54 is connected to the rotating wheel 51. The restoring force of the torsional spring 54 can force the rotating wheel 51 to rotate.

[0053] The second bearing plate 62 is provided with a hinge shaft 623 extending from the bearing plate assembly 6 in the axial direction of the rotating wheel 51 away from the cartridge 1, and the middle part of the tooth buckle 52 is provided with an axle hole 521 as a hinge part, and the tooth buckle 52 is sleeved on the hinge shaft 623 through the axle hole 521 and can swing around the hinge shaft 623.

[0054] The tooth buckle 52 is limitedly matched with the teeth on the downstream side of the rotating direction of the rotating wheel 51, and the tooth buckle 52 limits the rotating wheel 51 to rotate only in the reverse direction.

[0055] The pusher 53 is arranged at the second axial end of the developing roller 31, and in the width direction of the cartridge 1, the rotating wheel 51 and the pusher 53 are arranged on the opposite sides of the tooth buckle 52 respectively. The developing roller 31 drives the pusher 53 to rotate and releases the limiting cooperation between the tooth buckle 52 and the teeth.

[0056] The tooth buckle 52 is provided with two limiting hooks 522 and two unlocking protrusions 523. The two limiting hooks 522 are arranged at the two ends of the tooth buckle 52 respectively, and the two unlocking protrusions 523 are arranged in the middle part of the tooth buckle 52 and are spaced apart. The two limiting hooks 522 are located on the side of the tooth buckle 52 facing the rotating wheel 51 and can extend into the corresponding adjacent two teeth respectively, and the two unlocking protrusions 523 are located on the side of the tooth buckle 52 facing the pusher 53.

[0057] The hinge shaft 623 of the tooth buckle 52 divides the tooth buckle 52 into a first locking section 524 and a second locking section 525, the hinge shaft 623 of the tooth buckle 52 is close to a plane formed by the central axis of the rotating wheel 51 and the central axis of the pusher 53, one of the limiting hooks 522 and one of the unlocking protrusions 523 are located on the first locking section 524, and the other limiting hook 522 and the other unlocking protrusion 523 are located on the second locking section 525.

[0058] The limiting hook 522 is provided with an intersecting stop wall 5221 and a guide wall 5222, the tooth is provided with an intersecting limiting wall 5111 and a guide wall 5112, the stop wall 5221 can be limited and matched with the limiting wall 5111 to limit the rotation of the rotating wheel 51 on the downstream side of the rotation direction of the rotating wheel 51, and the guide wall 5112 can slide along the guide wall 5222 relative to the tooth buckle 52 when the driving rotating wheel 51 is reversely rotated.

[0059] The pusher 53 is provided with two force protrusions 531, the two force protrusions 531 are oppositely arranged along the radial direction of the pusher 53, the two unlocking protrusions 523 are located on the rotation path of the force protrusions 531, the force protrusions 531 protrude radially outward from the outer peripheral wall of the pusher 53 and can abut against the unlocking protrusions 523, and the force protrusions 531 and the outer peripheral wall of the pusher 53 are smoothly transitioned.

[0060] The second bearing plate 62 and the rotating wheel 51 are both made of conductive material, and the second bearing plate 62 is electrically connected with the rotating wheel 51. The second bearing plate 62 is provided with three electric contact protrusions 624 on the side wall away from the box body 1, and the electric contact protrusions 624 contact the end wall of the rotating wheel 51. The second bearing plate 62 is provided with a groove 625, and the groove 625 is provided with a cantilever 626, one end of the cantilever 626 is connected with the inner peripheral wall of the groove 625, and one of the electric contact protrusions 624 is located on the free end of the cantilever 626, and the elastic restoring force of the cantilever 626 forces the electric contact protrusion 624 to tightly contact the rotating wheel 51.

[0061] The second bearing plate 62 is provided with a limiting protrusion 627 close to the hinge shaft 623, and the limiting protrusion 627 is located on one side of the tooth buckle 52 in the swinging direction of the tooth buckle 52 to limit the swinging angle of the tooth buckle 52.

[0062] Before the powder box is loaded into the image forming device, the torsional spring 54 is in a force storage state, as shown in FIG. 6A, and the tooth buckle 52 is in a state of being tightly contacted with the rotating wheel 51. Figure 5As shown, the limiting hook 522 at the upper end of the toothed buckle 52 is in limiting cooperation with a tooth on the downstream side of the rotating direction of the rotating wheel 51, so as to prevent the rotating wheel 51 from rotating. After the powder box is loaded into the image forming equipment, the driving force receiving head 10 receives the rotating driving force applied by the transmission head of the image forming equipment, drives the developing roller 31 to rotate, and at the same time, the developing roller 31 drives the poking member 53 to rotate. When the force applying protrusion 531 of the poking member 53 abuts against the unlocking protrusion 523 of the toothed buckle 52, an acting force is applied to the unlocking protrusion 523, so as to force the toothed buckle 52 to swing clockwise by a certain angle, and make the limiting hook 522 at the upper end disengage from the tooth, that is, the limiting cooperation between the limiting hook 522 at the upper end and the tooth is released. At this time, the rotating wheel 51 rotates under the action of the restoring force of the torsion spring 54, and at the same time, as shown in Figure 6 As shown, the limiting hook 522 at the lower end will enter between two adjacent teeth, so as to limit the angle of each rotation of the rotating wheel 51, and further limit the time required for the rotating wheel 51 to rotate to the predetermined angle. In the process of continuous rotation of the developing roller 31, as shown in Figures 5 to 7 As shown, the two force applying protrusions 531 alternatively apply acting forces to the two unlocking protrusions 523, so as to make the rotating wheel 51 continuously rotate, until the torsion spring 54 is in the non-accumulating force state. In the process of rotation of the rotating wheel 51, the triggering part 512 rotates with the rotating wheel 51 and triggers the contacted member in the image forming equipment, and the image forming equipment detects that the powder box is new.

[0063] When the used powder box is installed into the image forming equipment, the torsion spring 54 is in the non-accumulating force state, so the rotating wheel 51 no longer rotates, and the triggering part 512 no longer triggers the contacted member of the image forming equipment, so that the powder box is detected as not new. Since the triggering part 512 extends out of the second end cover 22 from the positioning opening 221, after the carbon powder in the powder box is used up and the carbon powder is reloaded, the resetting of the rotating wheel 51 can be realized by applying a force to the triggering part 512 and reversely rotating the rotating wheel 51, and the powder box can be used as a new powder box again.

[0064] As can be seen from the above, since the rotating wheel is driven to rotate by the torsion spring in the powder box of the present application, only a small force for releasing the toothed buckle needs to be applied to the toothed buckle by the poking member through the rotating member, so that the rotating wheel driven by the torsion spring rotates, that is, the installation detection of the powder box is completed, so that the torque generated by the rotation of the rotating member can be reduced, the damage to the transmission head in the image forming equipment is avoided, and at the same time, the powder box that can be effectively recognized by the image forming equipment is ensured.

[0065] Second embodiment of the powder box:

[0066] As an illustration of the second embodiment of the powder box of the present application, only the differences from the first embodiment of the powder box described above will be described below.

[0067] Referring to Figure 8 and Figure 9In the embodiment, the reset part 250 is arranged on the rotating wheel 251, the reset part 250 extends outward from the end wall 2501 of the rotating wheel 251 away from the box body through the positioning opening 2201 of the second end cover 222, and the reset part 250 passes through the center axis of the rotating wheel 251 and extends in a radial direction of the rotating wheel 251.

[0068] In addition, the outer surface of the second end cover 222 is provided with an identification part 223, and the end wall 2501 of the rotating wheel 251 is provided with an indication part 2502. Preferably, the number of the identification parts 223 is two, and the two identification parts 223 are arranged at intervals along the circumferential direction of the positioning opening 2201. When resetting the rotating wheel 251, the reset part 250 is operated and the rotating wheel 251 is reversely rotated until the indication part 2502 is located between the two identification parts 223 in the circumferential direction. This position is the initial phase of the rotating wheel 251 and is also the reset phase after each reset. The identification part 233 and the indication part 2502 can be grooves, protrusions or patterns.

[0069] Third embodiment of the powder box:

[0070] As an illustration of the third embodiment of the powder box of the present application, only the differences from the first embodiment of the powder box described above will be described below.

[0071] Referring to Figures 10 to 12 The detection mechanism 35 is arranged on the second end wall 312 and located between the second end wall 312 and the second end cover 322. The detection mechanism 35 includes a rotating wheel 351 rotatably supported on the second end wall 312 and a contact member 352 hinged on the second end cover 322 and located between the second end cover 322 and the rotating wheel 351. The side of the rotating wheel 351 away from the box body 310 is provided with three protrusions 3511. The contact member 352 is provided with a contact part 3522 and a trigger part 3521. The contact part 3522 can abut against the protrusions 3511, and the trigger part 3521 is exposed to the second end cover 322 and used to trigger the contact member in the imaging device.

[0072] The detection mechanism 35 further comprises a second gear train 353 arranged on the second end wall 312, the second gear train 353 comprising a powder roller gear 3531, a driving gear 3532, and two intermediate gears 3533, a toggle 35322 being arranged on the driving gear 3532 and integrally formed with the driving gear 3532, the powder roller gear 3531 being arranged at an axial end of the powder roller 332, the driving gear 3532 further comprising a gear portion 35321, the gear portion 35321 of the driving gear 3532 being arranged along an axial direction of the driving gear 3532. The driving gear 3532 and the gear portion 35321 are connected through the two intermediate gears 3533, so that the rotational force received by the powder roller gear 3531 from the powder roller 332 is transmitted to the driving gear 3532 through the two intermediate gears 3533.

[0073] The rotating wheel 351 is provided with an outwardly protruding reset portion 3512 at an axial end away from the box body 310, and the reset portion 3512 extends along a radial direction of the rotating wheel 351. One axial end of the rotating wheel 351 is rotatably supported in the positioning opening 3201, and the reset portion 3512 extends out of the positioning opening 3201, so as to facilitate a user to apply a force to the rotating wheel 351 through the reset portion 3512 to reset the rotating wheel 351.

[0074] Referring to Figure 13 and Figure 14 In this embodiment, the inner wall of the second end cover 322 is provided with a limiting groove 3221, and the contact member 352 is further provided with a limiting rod 3523. The limiting rod 3523 and the trigger portion 3521 are respectively located on opposite sides of the hinge portion 3520 of the contact member 352. The limiting groove 3221 is provided with a limiting wall 3222, and the limiting wall 3222 limits the swing angle of the contact member 352 in the extension direction of the swing path of the contact member 352.

[0075] In addition, the number of force applying protrusions can be one or more than two, and the plurality of force applying protrusions are arranged along the circumference of the toggle. The number, shape and arrangement of the electrical contact protrusions on the second bearing plate can be changed as needed. The reset portion can also extend along the chord direction of the rotating wheel. The number and shape of the protrusions on the rotating wheel can also be changed as needed. The torsional spring can also be made of other elastic materials. The rotation speed control assembly can also use other components for controlling the rotation speed of the rotating wheel, such as existing brake pad assemblies and other structures that slow down the rotating wheel 351 by friction. The above changes can also achieve the purpose of the present application.

[0076] Fourth embodiment of the powder box:

[0077] As an illustration of the fourth embodiment of the powder box of the present application, only the differences from the first embodiment of the powder box described above will be described below.

[0078] Referring to Figures 15 to 18 The detection mechanism 45 in the embodiment is composed of a mounting seat 452, a rotating wheel 451, a power supply 453, a switch assembly 46 and the motor 40. The rotating wheel 451 in the embodiment is rotatably supported on the support shaft 4220 of the inner wall of the second end cover 422.

[0079] The driving source includes the motor 40. In line with the implementation, the driving source of the embodiment is also composed of the driving force receiving head 413, the gear train and the rotating member, that is, the rotating wheel 451 is driven to rotate by the motor 40 instead of being driven by the driving force received by the driving force receiving head 413. The motor 40 is a variable-speed direct-current motor. Preferably, the motor 40 is a direct-current speed-reducing motor, and the rated power of the direct-current speed-reducing motor is 0.15 W to 0.5 W, the rated voltage is 1.3 V to 3.3 V, the rated current is 0.1 A to 0.3 A, the rated rotating speed is 22 rpm to 28 rpm, and the rated torque is 0.03 N·m to 0.25 N·m.

[0080] The top of the second end of the box body 410 is provided with a receiving groove 411, and the motor 40 is fixed in the receiving groove 411 through the mounting seat 452. In order to facilitate the stirring frame 433 to stir the carbon powder and send the carbon powder to the powder outlet 414, and at the same time prevent the carbon powder in the carbon powder box from caking, the carbon powder is usually not filled in the entire carbon powder containing part, so the receiving groove 411 is arranged in the receiving groove 411 on the top of the box body 410, which can reduce the size of the powder box while not reducing the capacity of the carbon powder containing part. Preferably, the power supply 453 is a button cell with a voltage in the range of 1.3 V to 3.3 V.

[0081] The power supply 453 is arranged at the end of the motor 40 away from the driving shaft 400 of the motor 40, and the power supply 453 is provided with a first electrode 4531 and a second electrode 4532. Among the first electrode 4531 and the second electrode 4532, one is a positive electrode and the other is a negative electrode. The motor 40 is provided with a first access end 401 and a second access end 402, the first access end 401 is electrically connected with the second electrode 4532, and the second access end 402 is located at the end of the motor 40 close to the rotating wheel 451.

[0082] The switch assembly 46 is used to turn on or off the electrical connection between the power supply 453 and the motor 40. The switch assembly 46 includes a conductive torsion spring 461, a clasp 462, a conductive trigger portion 463, and a power-off trigger portion 464. The inner wall of the second end cover 422 is further provided with a first torsion spring mounting column 4221, and the conductive torsion spring 461 is sleeved on the first torsion spring mounting column 4221. The first torsion arm 4611 of the conductive torsion spring 461 is electrically connected with the first electrode 4531, and the second torsion arm 4612 of the conductive torsion spring 461 can be switched between a position in contact with the second access end 402 and a position separated from the second access end 402. Figure 17 and 18 The clasp 462 is used to limit the second torsion arm 4612 to the position separated from the second access end 402.

[0083] As shown in Figure 19 , the conductive trigger portion 463 is arranged at the axial end of the stirring frame 433, and the second torsion arm 4612 can abut against the conductive trigger portion 463 to release the limitation of the second torsion arm 4612. The conductive trigger portion 463 is provided with a receiving groove 4631 and a guide slope 4632, the end of the second torsion arm 4612 is located in the receiving groove 4631, the guide slope 4632 is connected with the bottom wall 4633 of the receiving groove 4631, and the bottom wall 4633 of the receiving groove 4631 is parallel to the axial direction of the stirring frame 433. The guide slope 4632 is located on the end wall of the stirring frame 433 and is arranged at an acute angle with the central axis of the stirring frame 433. With the rotation of the stirring frame 433, the second torsion arm 4612 moves along the guide slope 4632, and after the guide slope 4632 forces the second torsion arm 4612 to move away from the clasp 462, the second torsion arm 4612 moves towards the second access end 402 under the action of the restoring force and abuts against the second access end 402.

[0084] As shown in Figure 16 and 17 , the connecting shaft 4512 is arranged on the inner side wall 4511 of the rotating wheel 451 facing the motor 40, the driving shaft 400 of the motor 40 is limited in circumferential direction with the shaft hole of the connecting shaft 4512, the power-off trigger portion 464 is located on the inner side wall 4511 of the rotating wheel 451, and the power-off trigger portion 464 protrudes radially outward from the outer peripheral wall of the connecting shaft 4512. When the second torsion arm 4612 contacts the second access end 402, the second torsion arm 4612 is located in the rotation path of the power-off trigger portion 464, and the power-off trigger portion 464 can abut against the second torsion arm 4612 and push the second torsion arm 4612 to the position separated from the second access end 402 (as shown in Figure 21 ).

[0085] The outer peripheral wall of the connecting shaft 4512 is provided with a stop protrusion 4513 near the inner side wall 4511 of the rotating wheel 451, and the inner wall of the second end cover 422 is further provided with a second torsion spring mounting column 4222, a limiting torsion spring 47 is sleeved on the second torsion spring mounting column 4222, the third torsion arm 471 of the limiting torsion spring 47 is connected to the second end cover 422, and the fourth torsion arm 472 of the limiting torsion spring 47 is located on the rotation path of the stop protrusion 4513 to block the rotation of the rotating wheel 451.

[0086] In the embodiment, the working process of the detection mechanism 45 of the powder box is as follows.

[0087] Referring to Figures 17 to 21 , before the powder box is loaded into the image forming device, as shown in Figure 19 , the second torsion arm 4612 of the conductive torsion spring 461 abuts against the conductive trigger part 463 at the end of the stirring frame 433 and is located in the accommodating groove 4631, then the driving head in the image forming device drives the driving force receiving head 413 to rotate, and then the rotating force is transmitted to the rotating components such as the stirring frame 433 through the first gear train, the stirring frame 433 rotates and drives the conductive trigger part 463 to rotate, the second torsion arm 4612 moves along the guide inclined surface 4632 towards the end wall side of the stirring frame 433 until the second torsion arm 4612 is separated from the hook 462, as shown in Figure 20 , after the second torsion arm 4612 is separated from the hook 462, it moves towards the motor 40 under the action of the elastic restoring force of itself and abuts against the second access end 402, so as to connect the circuit. Then, after the motor 40 is connected to the power supply, the rotating wheel 451 is driven to rotate, and the trigger part 4510 provided on the rotating wheel 451 away from the box body 1 rotates together with the rotating wheel 451 and triggers the contacted component in the image forming device, so as to realize the loading detection of the powder box. At this time, with the rotation of the rotating wheel 451, the power-off trigger part 464 is driven to rotate to the position abutting against the second torsion arm 4612, and when the rotating wheel 451 further rotates, as shown in Figure 20 , the power-off trigger part 464 pushes the second torsion arm 4612 to the position away from the second access end 402 of the motor 40, so as to disconnect the circuit, and after the motor 40 is disconnected from the power supply, the rotating wheel 451 is no longer driven to rotate.

[0088] Finally, it should be emphasized that the above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A toner cartridge, comprising: a cartridge body having a toner accommodating portion; a rotating member rotatably supported between a first end wall and a second end wall of the cartridge body; a driving force receiving head provided on the first end wall for receiving a rotational driving force, a tooth portion being provided on a peripheral wall of the driving force receiving head; a gear train provided on the first end wall, the gear train being engaged with the tooth portion; a detection mechanism provided at the second end of the cartridge body, the detection mechanism comprising a rotating wheel rotatably supported to the cartridge body; characterized in that: the detection mechanism further comprises a driving source, a power source and a switch assembly, the driving source driving the rotating wheel to rotate, the driving source being independent of a rotational force transmission system consisting of the driving force receiving head, the gear train and the rotating member; the driving source comprises a motor, the switch assembly being used to turn on or off an electrical connection between the power source and the motor; the switch assembly comprises a conductive torsion spring, a hook, a conductive trigger portion and a power-off trigger portion, the conductive torsion spring being provided at the second end of the cartridge body; the power source is provided with a first electrode and a second electrode, the motor is provided with a first access end and a second access end, the first access end being electrically connected with the second electrode, the second access end being located at an end of the motor close to the rotating wheel; a first torsion arm of the conductive torsion spring is electrically connected with the first electrode, a second torsion arm of the conductive torsion spring is switchable between a position in contact with the second access end and a position separated from the second access end; the hook limits the second torsion arm at the position separated from the second access end, the conductive trigger portion is provided at an axial end of the rotating member, the second torsion arm is abuttable with the conductive trigger portion to release the limitation of the second torsion arm; the power-off trigger portion is located at a side of the rotating wheel facing the motor, when the second torsion arm is in contact with the second access end, the second torsion arm is located in a rotating path of the power-off trigger portion, the power-off trigger portion is abuttable with the second torsion arm and pushes the second torsion arm to a position separated from the second access end. 2.The toner cartridge according to claim 1, characterized in that: the conductive trigger portion is provided with an accommodating groove and a guide slope, an end of the second torsion arm is located in the accommodating groove; the guide slope is connected with a bottom wall of the accommodating groove, the guide slope is located on an end wall of the rotating member and is provided at an acute angle with a central axis of the rotating member; with rotation of the rotating member, the second torsion arm moves along the guide slope, after the guide slope forces the second torsion arm to be separated from the hook, the second torsion arm moves towards the second access end under the action of a restoring force and is abuttable with the second access end. 3.The toner cartridge according to claim 1, characterized in that: the second end of the cartridge body is provided with an end cover, the rotating wheel is mounted on an inner wall of the end cover, a trigger portion is provided on the rotating wheel, the trigger portion is exposed from the end cover. The clamping hook is located on the inner wall of the end cover, and a first torsion spring mounting column is further arranged on the inner wall of the end cover.

4. The powder box according to claim 3, characterized in that: The rotating wheel is provided with a connecting shaft towards the inner side wall of the motor, the driving shaft of the motor is in limiting fit with the connecting shaft, the power-off trigger part protrudes radially and outwardly from the outer peripheral wall of the connecting shaft, and a stop protrusion is arranged on the outer peripheral wall of the connecting shaft and close to the inner side wall of the rotating wheel; The inner wall of the end cover is further provided with a second torsion spring mounting column, a limiting torsion spring is sleeved on the second torsion spring mounting column, the third torsion arm of the limiting torsion spring is connected to the end cover, and the fourth torsion arm of the limiting torsion spring is located on the rotation path of the stop protrusion to block the rotation of the rotating wheel.

5. The powder box according to any one of claims 1 to 4, characterized in that: The detection mechanism further comprises a mounting seat, the box body is provided with a receiving groove, and the motor is fixed in the receiving groove through the mounting seat.

6. The powder box according to any one of claims 1 to 4, characterized in that: The motor is a speed-adjustable direct-current motor.

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