Detection mechanism, developing box and image forming device

Abstract

The utility model discloses a detection mechanism, a developing box and an image forming device, and relates to the technical field of printers. The detection mechanism comprises a transmission piece, a shifting rod, a triggering piece and a locking piece; the transmission piece can rotate in the first direction, a first convex part and at least one second convex part are arranged on the peripheral side of the transmission piece, and a locking trigger part is arranged on the first convex part in a protruding mode; the shifting rod is provided with a first movable end and a second movable end, the first movable end is located on the upstream side of the locking triggering part in the first direction in the first state and abuts against the first protruding part, the first movable end makes contact with at least one second protruding part in the fourth state, and the first movable end abuts against the locking triggering part in the fifth state; the triggering piece is provided with a first part and a second part, the first part is located on a rotating path of the second movable end, and the second part is used for triggering a sensing piece of the image forming device; the locking piece can lock the triggering piece so as to limit rotation of the triggering piece. According to the detection mechanism provided by the invention, the assembly precision requirement and the assembly difficulty of the detection mechanism can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printers, and in particular to a detection mechanism, a developing cartridge and an image forming device. BACKGROUND

[0002] The developing cartridge is an essential printing consumable in a laser printer. When the laser printer works for a period of time, the toner in the developing cartridge will be consumed, and the developing cartridge needs to be replaced. When the developing cartridge is replaced, the host printer needs to detect whether the developing cartridge is installed and the specification of the developing cartridge.

[0003] In related technologies, a detection gear set and related structures are usually configured on the developing cartridge to achieve detection. However, the detection gear set needs precise cooperation between multiple components to achieve the detection function, which increases the assembly precision requirement and difficulty of the detection structure, affecting product capacity. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a detection mechanism, a developing cartridge and an image forming device to reduce the assembly precision requirement and difficulty of the detection mechanism.

[0005] In a first aspect, the present application provides a detection mechanism applied to a developing cartridge, comprising:

[0006] A transmission member capable of rotating in a first direction, a first protrusion and at least one second protrusion are arranged on the side of the transmission member, and a locking trigger portion is arranged on the side of the first protrusion away from the rotation axis of the transmission member;

[0007] A lever, the lever is provided with a first movable end and a second movable end, the first movable end is located on the upstream side of the locking trigger portion in the first direction and abuts against the first protrusion in a first state, the first movable end contacts the at least one second protrusion in a fourth state, and the first movable end abuts against the locking trigger portion in a fifth state;

[0008] A trigger member, the trigger member has a first part and a second part, wherein the first part is located on the rotation path of the second movable end, and the second part is used to trigger a sensing member of an image forming device; and

[0009] A locking member capable of locking the trigger member to limit the rotation of the trigger member.

[0010] In some possible implementations, the transmission member includes two second protrusions arranged at intervals;

[0011] The first protrusion and the first second protrusion have an included angle A1, wherein the included angle A1 is set to 63°±5°;

[0012] The first convex part and the second convex part have an included angle A2, wherein the included angle A2 is set to 75°±5°;

[0013] The two second convex parts have an included angle A3, wherein the included angle A3 is set to 64°±5°.

[0014] In some possible embodiments, the first movable end sequentially contacts the two second convex parts in the fourth state.

[0015] In some possible embodiments, the transmission member comprises one second convex part, and the second convex part is arranged apart from the first convex part.

[0016] In some possible embodiments, the second convex part is a sector, and the second convex part corresponds to a first preset angle, and the first preset angle is set to 169°±5°.

[0017] In some possible embodiments, the first convex part and the second convex part have an included angle B1 and an included angle B2, wherein the included angle B1 is set to 63°±5°, and the included angle B2 is set to 75°±5°.

[0018] In some possible embodiments, the first movable end contacts the second convex part for a first preset time length in the fourth state.

[0019] In some possible embodiments, the second convex part is a sector, and the second convex part corresponds to a second preset angle, and the second preset angle is 60°±5°.

[0020] In some possible embodiments, the first convex part and the second convex part have an included angle C1 and an included angle C2, wherein the included angle C1 is set to 63°±5°, and the included angle C2 is set to 184°±5°.

[0021] In some possible embodiments, the first movable end contacts the second convex part for a second preset time length in the fourth state.

[0022] In some possible embodiments, the detection mechanism further comprises a connecting shaft for driving connection of a stirring roller in the developing cartridge, and the transmission member is sleeved on a circumferential side of the connecting shaft.

[0023] A first pushing convex part is arranged protruding on one side of the connecting shaft facing the transmission member, a second pushing convex part is arranged protruding on one side of the transmission member facing the connecting shaft, and the second pushing convex part is located on a rotation path of the first pushing convex part.

[0024] In some possible implementation manners, the first pushing protrusion rotates by a preset angle along the first direction and abuts against the second pushing protrusion to rotate the transmission member in the second state.

[0025] In some possible implementation manners, the first movable end is located within an included angle between the first protrusion and the first second protrusion in the third state.

[0026] In some possible implementation manners, the detection mechanism further comprises an elastic reset member, the elastic reset member is in a stretching mode to separate the trigger member from the sensing member in the third state.

[0027] In some possible implementation manners, the detection mechanism further comprises a mounting base, the transmission member and the lever are rotatably mounted on one side of the mounting base, one end of the elastic reset member is connected to the trigger member, and the other end of the elastic reset member is connected to the mounting base.

[0028] The elastic reset member is in a stretching mode when the trigger member triggers the sensing member.

[0029] The elastic reset member is in a natural stretching mode when the first movable end is misaligned with the first protrusion and the second protrusion, and the trigger member is separated from the sensing member.

[0030] In some possible implementation manners, the trigger member further comprises a second connecting sleeve, the first part and the second part are protrudingly arranged on a circumferential side of the second connecting sleeve, the first part is provided with a plug-in hole at an end close to the second connecting sleeve, and the locking member is arranged at an end of the second movable end close to the first part.

[0031] The locking member is plugged into the plug-in hole when the detection mechanism is in the fifth state.

[0032] In some possible implementation manners, a side of the second movable end close to the second connecting sleeve is provided with an avoiding groove.

[0033] The second connecting sleeve is plugged into the avoiding groove when the detection mechanism is in the fifth state.

[0034] In some possible implementation manners, the detection mechanism further comprises a mounting base, the transmission member and the lever are rotatably mounted on one side of the mounting base, and the locking member is rotatably mounted on a side of the mounting base away from the lever.

[0035] When the detection mechanism is in the fifth state, a gap is formed between the side of the second part away from the inductive piece and the mounting seat, and the locking piece is inserted into the gap under the action of the elastic reset piece and is stopped at the side of the second part away from the inductive piece.

[0036] In some possible implementation manners, the mounting seat comprises a mounting seat body and a cover, the second part is arranged on the side of the mounting seat body away from the transmission piece, the cover is arranged on the side of the mounting seat body facing the second part and covers at least part of the second part, and a notch is formed in the circumferential side of the cover.

[0037] When the detection mechanism is in the fifth state, the second part is entirely exposed to the notch.

[0038] In some possible implementation manners, when the first convex part or the second convex part abuts against the first movable end, at least part of the second part is exposed to the notch, and the locking piece abuts against the side of the second part away from the rotation axis of the trigger piece.

[0039] In some possible implementation manners, the locking trigger part comprises a first wall surface, the first wall surface is located on the upstream side of the locking trigger part along the first direction, and the first wall surface is arranged along a radial direction of the transmission piece.

[0040] In some possible implementation manners, the locking trigger part further comprises a second wall surface arranged opposite to the first wall surface.

[0041] The second wall surface gradually inclines towards the first wall surface from the end close to the first convex part to the end away from the first convex part.

[0042] In a second aspect, the present application further provides a developing cartridge comprising a stirring roller and the detection mechanism provided in each of the above embodiments, and one end of the stirring roller is in transmission connection with the transmission piece.

[0043] In a third aspect, the present application further provides an image forming apparatus comprising an inductive piece and the detection mechanism provided in each of the above embodiments, and the inductive piece is located on the rotation path of the trigger piece away from the second movable end.

[0044] The beneficial effects of the present application: the detection mechanism provided by the present application can drive the trigger member to act through the transmission member provided with the convex part and the push rod. In the processing and assembly process of the detection mechanism, the transmission member and the push rod can cooperate to transmit power to the trigger member, and the trigger member can trigger the inductive member. Therefore, the requirements for processing precision and assembly precision of the detection mechanism can be obviously reduced, the processing and assembly difficulty can be reduced, the assembly efficiency of the developing cartridge can be improved, and the production capacity can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0046] Figure 1 A structural schematic diagram of the developing cartridge in some embodiments is shown;

[0047] Figure 2 A three-dimensional structural schematic diagram of the detection mechanism and the inductive member in some embodiments is shown;

[0048] Figure 3 A structural schematic diagram of the mounting seat in some embodiments is shown;

[0049] Figure 4 An exploded structural schematic diagram of the connecting shaft and the transmission member in some embodiments is shown;

[0050] Figure 5 A structural schematic diagram of the trigger member in some embodiments is shown;

[0051] Figure 6 A structural schematic diagram of the detection mechanism in the first state in some embodiments is shown;

[0052] Figure 7 Another structural schematic diagram of the detection mechanism in the first state in some embodiments is shown;

[0053] Figure 8 A structural schematic diagram of the detection mechanism in the second state in some embodiments is shown;

[0054] Figure 9 A structural schematic diagram of the detection mechanism in the third state in some embodiments is shown;

[0055] Figure 10 Another structural schematic diagram of the detection mechanism in the third state in some embodiments is shown;

[0056] Figure 11Fig. 4 shows a schematic view of the detection mechanism in the fourth state according to some embodiments;

[0057] Figure 12 Fig. 5 shows a schematic view of the detection mechanism in the fifth state according to some embodiments;

[0058] Figure 13 Fig. 6 shows another schematic view of the detection mechanism in the fifth state according to some embodiments;

[0059] Figure 14 Fig. 7 shows a schematic view of the detection mechanism according to some other embodiments;

[0060] Figure 15 Fig. 8 shows another schematic view of the detection mechanism according to some other embodiments;

[0061] Figure 16 Fig. 9 shows a schematic view of the detection mechanism in the fifth state according to some other embodiments;

[0062] Figure 17 Fig. 10 shows another schematic view of the detection mechanism in the fifth state according to some other embodiments;

[0063] Figure 18 Fig. 11 shows a dimensioned view of a transmission member according to some embodiments;

[0064] Figure 19 Fig. 12 shows a dimensioned view of another transmission member according to some embodiments;

[0065] Figure 20 Fig. 13 shows a dimensioned view of yet another transmission member according to some embodiments.

[0066] Explanation of main element symbols:

[0067] 1000 - detection mechanism; 1001 - first state; 1002 - second state; 1003 - third state; 1004 - fourth state; 1005 - fifth state;

[0068] 100 - mounting base; 110 - mounting base body; 111 - positioning protrusion; 120 - cover; 121 - notch;

[0069] 200 - transmission member; 211 - first protrusion; 212 - second protrusion; 212a - first second protrusion; 212b - second second protrusion; 220 - locking trigger portion; 221 - first wall surface; 222 - second wall surface; 230 - first connecting sleeve; 231 - second pushing protrusion; 240 - support rim;

[0070] 300 - lever; 310 - first movable end; 320 - second movable end; 321 - avoiding slot;

[0071] 400 - trigger; 410 - second connecting sleeve; 420 - first part; 421 - insertion hole; 430 - second part;

[0072] 500 - elastic reset member;

[0073] 600 - locking member; 610 - insertion portion;

[0074] 700 - connecting shaft; 710 - first pushing protrusion;

[0075] 800 - gap;

[0076] 2000 - sensing member; 3000 - housing;

[0077] M - first direction; N - second direction. DETAILED DESCRIPTION

[0078] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are examples for explaining the present application, and are not intended to limit the present application.

[0079] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0080] In addition, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise explicitly specified.

[0081] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0082] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0083] As shown in Figure 1 , a Cartesian coordinate system is established, the length direction of the developing cartridge is defined as parallel to the direction indicated by the X axis, the width direction of the developing cartridge is defined as parallel to the direction indicated by the Y axis, and the height direction of the developing cartridge is defined as parallel to the direction indicated by the Z axis. It can be understood that the above definitions are only for the purpose of understanding the relative positional relationship of the structures in the developing cartridge, and should not be understood as a limitation of the present application.

[0084] As shown in Figure 1 , in some embodiments, a detection mechanism 1000 is provided, which can be applied to the developing cartridge of the image forming device. The detection mechanism 1000 can cooperate with the inductor 2000 in the image forming device host to detect whether the developing cartridge is installed and to detect the model of the developing cartridge.

[0085] As shown in Figure 2 , Figures 6 to 13 , in some embodiments, the detection mechanism 1000 can include a first state 1001, a fourth state 1004 and a fifth state 1005. The first state 1001 can be the initial state of the detection mechanism 1000, and the fifth state 1005 can be the termination state of the detection mechanism 1000. The fourth state 1004 can be an intermediate state in the detection process of the detection mechanism 1000.

[0086] In addition, the detection mechanism 1000 comprises a transmission member 200, a push rod 300, a trigger member 400 and a locking member 600. The transmission member 200, the push rod 300 and the trigger member 400 are all rotationally arranged, and the rotation axis of the transmission member 200, the rotation axis of the push rod 300 and the rotation axis of the trigger member 400 are all parallel to the length direction of the developing cartridge.

[0087] In the embodiment, the periphery of the transmission member 200 is provided with a first protruding portion 211 and at least one second protruding portion 212, and the first protruding portion 211 and the at least one second protruding portion 212 are circumferentially arranged at the periphery of the rotation axis of the transmission member 200. In some embodiments, the first protruding portion 211 and the second protruding portion 212 can be in the shape of a sector.

[0088] In the embodiment, the periphery of the transmission member 200 can be provided with different numbers of second protruding portions 212 or second protruding portions 212 with different angles for different models of developing cartridges or different models of developing cartridges with different capacities. Accordingly, different specifications of the transmission member 200 can correspond to different models of developing cartridges or different models of developing cartridges with different capacities.

[0089] In some embodiments, the first protruding portion 211 is further provided with a locking trigger portion 220 on the side away from the rotation axis of the transmission member 200. The locking trigger portion 220 can be used to trigger the detection mechanism 1000 to switch to the fifth state 1005.

[0090] In some embodiments, the push rod 300 comprises a first movable end 310 and a second movable end 320 that are connected to move together, and the first movable end 310 and the second movable end 320 are circumferentially arranged at the periphery of the rotation axis of the push rod 300. It can be understood that when the first movable end 310 rotates around the rotation axis of the push rod 300, the second movable end 320 can be driven to rotate synchronously. In the embodiment, the first movable end 310 can be located on the rotation path of the first protruding portion 211 and the rotation path of the second protruding portion 212. Accordingly, the first movable end 310 can also be located on the rotation path of the locking trigger portion 220.

[0091] In the embodiment, the trigger member 400 has a first portion 420 and a second portion 430 。 The first portion 420 can be located on the rotation path of the second movable end 320, and the second portion 430 can be used to trigger the sensing member 2000. Specifically, when the detection mechanism 1000 is applied to the developing cartridge, the developing cartridge is installed in the image forming apparatus host, and the sensing member 2000 is located on the rotation path of the second movable end 320.

[0092] As Figure 1 , Figures 6 to 13As shown, when the detection mechanism 1000 is applied to the developing cartridge, the transmission member 200 can be arranged towards the side of the stirring roller in the developing cartridge, and one end of the stirring roller is in transmission connection with the transmission member 200, so that the transmission member 200 can be driven to rotate by the stirring roller. In the embodiment, when the stirring roller is running, the transmission member 200 can be driven to rotate in the first direction M. When the developing cartridge is installed in the image forming apparatus host, the trigger member 400 can be opposite to the sensing member 2000 away from one end of the dial lever 300, and the sensing member 2000 can be located in the rotation path of the trigger member 400 away from one end of the dial lever 300.

[0093] In addition, when the developing cartridge is installed in the image forming apparatus host, the image forming apparatus host can initialize the detection mechanism 1000, that is, the detection mechanism 1000 is in the first state 1001. Specifically, the first movable end 310 of the dial lever 300 is abutted against the first protrusion 211 and is arranged on the upstream side of the locking trigger portion 220 along the first direction M. The trigger member 400 can be in contact with the sensing member 2000 under the drive of the second movable end 320, and trigger the sensing member 2000 to generate a corresponding sensing signal. Thus, it can also be judged that the developing cartridge has been installed on the host of the image forming apparatus.

[0094] When the stirring roller is started, the stirring roller can drive the transmission member 200 to rotate in the first direction M, and the detection mechanism 1000 can be switched to the fourth state 1004. The first movable end 310 sequentially contacts at least one second protrusion 212, and the trigger member 400 can trigger the sensing member 2000 at least once, that is, the first movable end 310 contacts a second protrusion 212, and the sensing member 2000 can be triggered once.

[0095] Then, the detection mechanism 1000 can enter the fifth state 1005. When the detection mechanism 1000 is in the fifth state 1005, the first movable end 310 is in abutment with the locking trigger portion 220, the trigger member 400 is in contact with the sensing member 2000, the locking member 600 locks the trigger member 400 and the sensing member 2000, prevents the rotation of the trigger member 400, and further prevents the separation of the trigger member 400 and the sensing member 2000, that is, the detection mechanism 1000 can be in a termination state, and the sensing member 2000 continuously outputs a detection signal, so that the image forming apparatus host can judge that the detection is completed. The image forming apparatus host can determine the model or capacity of the developing cartridge according to the number of times of generating the sensing signal by the sensing member 2000 and / or the length of time of the sensing signal. When the detection mechanism 1000 is switched to the fifth state 1005, the first movable end 310 can be dislocated from the rotation path of the locking trigger portion 220, and correspondingly, the first movable end 310 can also be dislocated from the rotation path of the first protrusion 211 and the rotation path of the second protrusion 212. The transmission member 200 can continue to rotate under the driving of the stirring roller to ensure the smooth running of the stirring roller.

[0096] In the embodiments of the present application, the transmission member 200 provided with the first protrusion 211 and the second protrusion 212 cooperates with the push rod 300 to drive the trigger member 400 to act. During the processing and assembling of the detection mechanism 1000, it is ensured that the transmission member 200 and the push rod 300 can cooperate to transmit power to the trigger member 400, and the trigger member 400 can trigger the sensing member 2000. Compared with the gear set for transmitting power, the detection mechanism 1000 provided by the embodiments of the present application can significantly reduce the requirements for the processing precision and the assembling precision of the detection mechanism 1000, thereby reducing the processing and assembling difficulty, improving the assembling efficiency of the developing cartridge, and improving the production capacity.

[0097] As shown in Figures 2 to 4 、 Figure 6 In some embodiments, the detection mechanism 1000 further includes a mounting seat 100. The mounting seat 100 can be used as a mounting carrier in the detection mechanism 1000, and other structural members can be assembled by being attached to the mounting seat 100. In some embodiments, the mounting seat 100 can be a side cover in the developing cartridge.

[0098] In other embodiments, the mounting seat 100 can also be part of the housing 3000 in the developing cartridge, or other structures, etc.

[0099] In some embodiments, the transmission member 200 and the push rod 300 can be rotatably installed on one side of the mounting seat 100 facing the stirring roller in the developing cartridge.

[0100] As shown in Figures 2 to 4 、 Figure 6 In some embodiments, the mounting seat 100 can include a mounting seat body 110. The detection mechanism 1000 further includes a connecting shaft 700 rotatably installed on one side of the mounting seat 100 close to the transmission member 200. One end of the stirring roller can be inserted into the connecting shaft 700, and the stirring roller can be limitedly matched with the connecting shaft 700 in the rotation direction of the connecting shaft 700. Thus, the connecting shaft 700 can be synchronously rotated by the stirring roller. In some embodiments, the stirring roller and the connecting shaft 700 can be non-circular matched.

[0101] Of course, in other embodiments, the stirring roller and the connecting shaft 700 can be relatively fixed by screw connection or clamping, so that the connecting shaft 700 can be synchronously rotated by the stirring roller, which is not limited in the present application.

[0102] In some embodiments, the transmission member 200 further includes a first connecting sleeve 230. The first connecting sleeve 230 can be sleeved around the periphery of the connecting shaft 700. Additionally, a circular positioning protrusion 111 can be disposed on the side of the mounting base 100 facing the connecting shaft 700. The positioning protrusion 111 can be surrounding the periphery of the connecting shaft 700 and coaxial with the connecting shaft 700. An annular support edge 240 protrudes from the inner wall of one end of the first connecting sleeve 230 near the mounting base 100. The support edge 240 can be sleeved around the periphery of the positioning protrusion 111, and the inner wall of the support edge 240 can slide against the periphery surface of the positioning protrusion 111. Thus, the first connecting sleeve 230 can be coaxially disposed with the connecting shaft 700, and the first connecting sleeve 230 can be spaced apart from the connecting shaft 700.

[0103] In some embodiments, a first pushing protrusion 710 protrudes from the side of the connecting shaft 700 facing the first connecting sleeve 230. A second pushing protrusion 231 protrudes from the side of the first connecting sleeve 230 facing the connecting shaft 700. The second pushing protrusion 231 may be located on the rotation path of the first pushing protrusion 710. Thus, when the stirring roller drives the connecting shaft 700 to rotate, the first pushing protrusion 710 can push the second pushing protrusion 231 to rotate, thereby driving the transmission member 200 to rotate with the connecting shaft 700.

[0104] In other embodiments, the first connecting sleeve 230 may also be fixedly sleeved on the periphery of the connecting shaft 700 by means of bonding or interference fit. When the stirring roller drives the connecting shaft 700 to rotate, the connecting shaft 700 can drive the transmission component 200 to rotate synchronously.

[0105] like Figures 6 to 9 As shown, in some embodiments, when the detection mechanism 1000 is in the first state 1001, the first pushing protrusion 710 can approach or abut against the downstream side of the second pushing protrusion 231 along the first direction M. Additionally, the detection mechanism 1000 also includes a second state 1002. When the detection mechanism 1000 is in the second state 1002, the first pushing protrusion 710 can rotate a preset angle along the first direction M and abut against the second pushing protrusion 231 laterally along the first direction M. During subsequent operation of the detection mechanism 1000, the second pushing protrusion 231 can rotate along the first direction M under the push of the first pushing protrusion 710.

[0106] like Figure 4 , Figures 18 to 20As shown, in some embodiments, the first protrusion 211 and the second protrusion 212 can be integrated with the first connecting sleeve 230. The first protrusion 211 and the second protrusion 212 can be arranged around the periphery of the first connecting sleeve 230, and adjacent two protrusions are spaced apart. Among them, the second protrusion 212 can be one or two in equal number. The locking trigger portion 220 can be protrudingly arranged on the side of the first protrusion 211 away from the first connecting sleeve 230, and the locking trigger portion 220 can be integrated with the first protrusion 211. In some embodiments, along the first direction M, the locking trigger portion 220 can be arranged close to one end of the first protrusion 211.

[0107] In other embodiments, along the first direction M, the locking trigger portion 220 can also be arranged at the middle of the first protrusion 211.

[0108] In some embodiments, the transmission member 200 of the high-capacity developing cartridge can include a first protrusion 211 and two second protrusions 212, which can include a first second protrusion 212a and a second second protrusion 212b. The first second protrusion 212a can be disposed on the upstream side of the first protrusion 211 along the first direction M, and the second second protrusion 212b can be disposed on the downstream side of the first protrusion 211 along the first direction M. The angle corresponding to the first protrusion 211 can be set to 53°±5°, and exemplarily, the angle corresponding to the first protrusion 211 can be set to 48°, 50°, 53°, 55°, 58°, or any other angle within a range of 48° to 58°. Along the first direction M, the included angle A1 between the first protrusion 211 and the first second protrusion 212a can be set to 63°±5°, and the angle corresponding to the first second protrusion 212a can be 60°±5°, and exemplarily, the angle corresponding to the first second protrusion 212a can be set to 55°, 58°, 60°, 63°, 65°, or any other angle within a range of 55° to 65°. Exemplarily, the included angle A1 between the first protrusion 211 and the first second protrusion 212a can be set to 58°, 60°, 63°, 65°, 68°, or any other angle within a range of 58° to 68°. The included angle A2 between the first protrusion 211 and the second second protrusion 212b can be set to 75°±5°, and the angle corresponding to the second second protrusion 212b can be 45°±5°, and exemplarily, the angle corresponding to the second second protrusion 212b can be set to 40°, 42°, 45°, 48°, 50°, or any other angle within a range of 40° to 50°. Exemplarily, the included angle A2 between the first protrusion 211 and the second second protrusion 212b can be set to 70°, 72°, 75°, 78°, 80°, or any other angle within a range of 70° to 80°. The included angle A3 between the two second protrusions 212 can be set to 64°±5°. Exemplarily, the included angle A3 between the two second protrusions 212 can be set to 59°, 61°, 64°, 67°, 69°, or any other angle within a range of 59° to 69°. During the operation of the detection mechanism 1000, the first movable end 310 can sequentially contact the two second protrusions 212 in the fourth state 1004, and trigger the trigger member 400 to trigger the sensing member 2000 twice.

[0109] The transmission member 200 of the medium-capacity developing cartridge can include a first protrusion 211 and a second protrusion 212 arranged at intervals. The first protrusion 211 corresponds to an angle of 53°±5°. Illustratively, the first protrusion 211 corresponds to an angle of 48°, 50°, 53°, 55°, 58°, or any other angle within a range of 48° to 58°. In the first direction M, an included angle B1 between an upstream side of the first protrusion 211 and the second protrusion 212 is set to 63°±5°. Illustratively, the included angle B1 between the upstream side of the first protrusion 211 and the second protrusion 212 is set to 58°, 60°, 63°, 65°, 68°, or any other angle within a range of 58° to 68°. An included angle B2 between a downstream side of the first protrusion 211 and the second protrusion 212 is set to 75°±5°. Illustratively, the included angle B2 between the downstream side of the first protrusion 211 and the second protrusion 212 is set to 70°, 72°, 75°, 78°, 80°, or any other angle within a range of 70° to 80°. The second protrusion 212 corresponds to a first preset angle, which is set to 169°±5°. Illustratively, the first preset angle can be set to 164°, 168°, 169°, 172°, 174°, or any other angle within a range of 164° to 174°. During operation of the detection mechanism 1000, the first movable end 310 can be in contact with the second protrusion 212 for a first preset time period in a fourth state 1004, and cause the trigger member 400 to trigger the sensing member 2000 to generate a sensing signal for the first preset time period.

[0110] The transmission component 200 of the low-capacity developer cartridge may include a first protrusion 211 and a second protrusion 212 spaced apart. The angle corresponding to the first protrusion 211 is 53°±5°. Exemplarily, the angle corresponding to the first protrusion 211 is 48°, 50°, 53°, 55°, 58°, or any other angle between 48° and 58°. Along the first direction M, the included angle C1 between the upstream side of the first protrusion 211 and the second protrusion 212 can be set to 63°±5°. Exemplarily, the included angle C1 between the upstream side of the first protrusion 211 and the second protrusion 212 is set to 58°, 60°, 63°, 65°, 68°, or any other angle between 58° and 68°. The included angle C2 between the downstream side of the first protrusion 211 and the second protrusion 212 can be set to 184°±5°. For example, the included angle C2 between the downstream side of the first protrusion 211 and the second protrusion 212 can be set to 179°, 182°, 184°, 187°, 189°, or any other angle between 179° and 189°. The angle corresponding to the second protrusion 212 is a second preset angle, which can be set to 60°±5°. For example, the second preset angle can be set to 55°, 58°, 60°, 63°, 65°, or any other angle between 55° and 65°. During the operation of the detection mechanism 1000, the first movable end 310 can contact the second protrusion 212 for a second preset duration in the fourth state 1004, and cause the trigger 400 to trigger the sensing element 2000 to generate a sensing signal for the second preset duration. In some embodiments, the first preset duration can be longer than the second preset duration.

[0111] like Figure 4 , Figure 6 and Figure 12 As shown, in some embodiments, the locking trigger portion 220 may include a first wall surface 221 and a second wall surface 222 disposed opposite to each other. Along the first direction M, the first wall surface 221 may be located upstream of the locking trigger portion 220, and the second wall surface 222 may be located downstream of the locking trigger portion 220. In some embodiments, the first wall surface 221 may extend radially along the transmission member 200. Accordingly, the first wall surface 221 may be perpendicular or nearly perpendicular to the tangent at the location of the first wall surface 221 in the first protrusion 211. When the detection mechanism 1000 is in the first state 1001, it can prevent the first movable end 310 from passing over the top of the locking trigger portion 220 and reaching the second wall surface 222 along the first direction M.

[0112] In this embodiment, the second wall surface 222 may be inclined relative to the first wall surface 221. Specifically, the second wall surface 222 may gradually tilt towards the first wall surface 221 from the end near the first protrusion 211 to the end away from the first protrusion 211. Thus, when the second wall surface 222 contacts the first movable end 310, the first movable end 310 can reach the top of the locking trigger part 220 through the second wall surface 222 and abut against the top of the locking trigger part 220.

[0113] like Figure 1 as well as Figures 6 to 13 As shown, in some embodiments, along the height direction of the developing cartridge, the lever 300 may be located on the side of the transmission member 200 closer to the sensor 200. The first movable end 310 may be located on the side of the second movable end 320 closer to the transmission member 200. The first movable end 310 may be located on the rotation path of the first protrusion 211 and the second protrusion 212 in the transmission member 200, and correspondingly, the first movable end 310 is also located on the rotation path of the locking trigger part 220. The second movable end 320 may be disposed towards the sensor 2000.

[0114] In this embodiment, the detection mechanism 1000 further includes a third state 1003. In the third state 1003, the first movable end 310 is located between the first protrusion 211 and an adjacent second protrusion 212, the second protrusion 212 being located upstream of the first protrusion 211 along the first direction M. Exemplarily, in the third state 1003, the first movable end 310 is located between the first protrusion 211 and a first second protrusion 212a. At this time, the trigger 400 can be separated from the sensing element 2000. In this embodiment, the detection mechanism 1000 can sequentially switch between the first state 1001, the second state 1002, the third state 1003, the fourth state 1004, and the fifth state 1005.

[0115] like Figure 1 , Figures 5 to 7 As shown, the trigger 400 also includes a second connecting sleeve 410, and the second connecting sleeve 410, the first part 420, and the second part 430 can be an integral structure. The second connecting sleeve 410 is rotatably mounted on the mounting base 100. In some embodiments, the second connecting sleeve 410 can be arranged side-by-side with the lever 300 along the width direction of the developing cartridge. Furthermore, the rotation axis of the second connecting sleeve 410 can be approximately at the same height as the rotation axis of the lever 300.

[0116] In this embodiment, both the first portion 420 and the second portion 430 protrude from the periphery of the second connecting sleeve 410, and the first portion 420 and the second portion 430 may be offset along the axial direction of the second connecting sleeve 410. In some embodiments, the second connecting sleeve 410 may pass through the mounting body 110 along the length direction of the developing cartridge, and both ends of the second connecting sleeve 410 may protrude from the sides of the mounting body 110 respectively.

[0117] The first part 420 can be connected to the end of the second connecting sleeve 410 near the lever 300. That is, the first part 420 can be located on the side of the mounting body 110 facing the lever 300, and the first part 420 can be located on the rotation path of the second movable end 320 of the lever 300. When the lever 300 rotates around the second direction N under the drive of the transmission member 200, the second movable end 320 can push the first part 420 to rotate, thereby driving the trigger member 400 to rotate along the second direction N.

[0118] In some embodiments, the second portion 430 may be connected to the end of the second connecting sleeve 410 away from the lever 300, that is, the second portion 430 may be located on the side of the mounting body 110 opposite to the lever 300. In the embodiments, the second portion 430 may be opposite to the sensor 2000 in the image forming apparatus host, and the rotation path of the second portion 430 may pass through the sensor 2000. Thus, when the lever 300 pushes the trigger 400 to rotate about the second direction N, the second portion 430 may contact and trigger the sensor 2000 to generate a sensing signal.

[0119] like Figures 8 to 13 As shown, the detection mechanism 1000 also includes an elastic reset member 500. In some embodiments, the elastic reset member 500 may be a spring. One end of the elastic reset member 500 may be fixedly connected to the mounting base 100, and the other end of the elastic reset member 500 may be fixedly connected to the trigger member 400. For example, the elastic reset member 500 may be fixedly connected to the first portion 420. In addition, along the width direction of the developing cartridge, the connection position between the elastic reset member 500 and the mounting base 100 may be located on the side of the trigger member 400 facing the lever 300. When the first movable end 310 is misaligned with the first protrusion 211 and the second protrusion 212 of the transmission member 200, the trigger member 400 separates from the sensing member 2000, and the elastic reset member 500 may be in a natural extension mode. When the first protrusion 211 or the second protrusion 212 abuts against the first movable end 310, and the trigger member 400 contacts the sensing member 2000, the elastic reset member 500 may be in a stretched mode.

[0120] In other embodiments, the elastic reset member 500 may also be a structure such as an elastic rope or a spring sheet.

[0121] Thus, during the rotation of the transmission member 200, when the first movable end 310 is misaligned with the first protrusion 211 and the second protrusion 212, for example, when the detection mechanism 1000 is in the third state 1003, the elastic reset member 500 can be in a stretched mode, the trigger member 400 can be rotated and reset in the first direction M under the action of the elastic reset member 500, and the second part 430 can be moved away from the inductive member 2000, i.e., the second part 430 can be separated from the inductive member 2000. At the same time, the trigger member 400 can drive the lever 300 to rotate and reset in the first direction M.

[0122] In other embodiments, the trigger member 400 can be located above the gravity direction of the lever 300. During the rotation of the transmission member 200, when the first movable end 310 is misaligned with the first protrusion 211 and the second protrusion 212, for example, when the detection mechanism 1000 is in the third state 1003, the trigger member 400 can be rotated and reset away from the inductive member 2000 under the action of its own gravity, and can drive the lever 300 to rotate and reset.

[0123] In some embodiments, an insertion hole 421 can be formed in one end of the first part 420 close to the second connecting sleeve 410. The second movable end 320 close to the trigger member 400 can be used as a locking member 600. An avoiding groove 321 adapted to the second connecting sleeve 410 can be formed in the side of the second movable end 320 facing the trigger member 400.

[0124] When the transmission member 200 is rotated to the end surface of the locking trigger part 220 away from the first connecting sleeve 230 abuts against the end surface of the first movable end 310 facing the transmission member 200, the transmission member 200 can drive the lever 300 to rotate a larger angle in the second direction N. At the same time, the lever 300 can also drive the trigger member 400 to rotate a larger angle in the second direction N. The end of the second movable end 320 used as the locking member 600 can be inserted and clamped in the insertion hole 421, part of the second connecting sleeve 410 can be accommodated in the avoiding groove 321, and the trigger member 400 and the lever 300 can be clamped under the action of the elastic reset member 500. Thus, the trigger member 400 and the lever 300 can be locked, the second part 430 can always remain in contact with the inductive member 2000, and the inductive member 2000 can continuously output an inductive signal, and the detection mechanism 1000 can be in the fifth state 1005. When the detection mechanism 1000 is in the fifth state 1005, the first movable end 310 can avoid the transmission member 200, ensuring that the transmission member 200 can be smoothly rotated under the driving of the stirring roller.

[0125] As Figure 2 , Figures 14 to 17As shown, in some embodiments, the locking member 600 may be installed on one side of the mounting base body 110. Along the width direction of the developing cartridge, the locking member 600 may be located on the side of the lever 300 away from the trigger member 400. One end of the elastic reset member 500 away from the trigger member 400 may be connected to the locking member 600. The mounting base 100 also includes a cover 120 protruding from the mounting base body 110 on the side opposite to the lever 300, which may cover the second portion 430 on the side opposite to the first portion 420. A notch 121 may be provided on the side of the cover 120 facing the sensor 2000. When the trigger member 400 rotates along the second direction N, the second portion 430 gradually protrudes through the notch 121 and comes into contact with the sensor 2000. In this embodiment, the locking member 600 is further provided with a plug-in portion 610, which can be located on the side of the mounting base body 110 away from the lever 300 and facing the notch 121 of the cover 120. During the process of the first protrusion 211 or the second protrusion 212 abutting against the lever 300, the plug-in portion 610 can abut against the side of the second part 430 away from the second connecting sleeve 410, that is, the plug-in portion 610 abuts against the side of the second part 430 away from the rotation axis of the trigger member 400. When the locking trigger part 220 abuts against the lever 300, the entire second part 430 can be exposed in the notch 121, and a gap 800 can be formed between the end of the second part 430 away from the sensing member 2000 and the cover 120, and opposite to the plug-in portion 610. The locking member 600 can rotate under the drive of the elastic reset member 500, and the plug-in portion 610 is inserted into the gap 800. Under the stopping action of the locking member 600, the trigger member 400 can be locked, the second part 430 can always remain in contact with the sensing member 2000, and the sensing member 2000 can continuously output a sensing signal, and the detection mechanism 1000 can be in the fifth state 1005.

[0126] like Figures 6 to 13 As shown, during use, after the developing cartridge is installed on the main unit of the image forming apparatus, the detection mechanism 1000 can be initialized, even if the detection mechanism 1000 is in the first state 1001. The first movable end 310 of the lever 300 is abutted against the first protrusion 211 and is fitted to the upstream side of the locking trigger part 220 along the first direction M.

[0127] When the stirring roller is started, in the second state 1002, the stirring roller can drive the connecting shaft 700 to rotate by a preset angle along the first direction M, and cause the first push protrusion 710 and the second push protrusion 231 to abut laterally along the upstream direction M.

[0128] Subsequently, the connecting shaft 700 can transmit the power of the stirring rod to the transmission member 200, driving the transmission member 200 to rotate along the first direction M, and the detection mechanism 1000 can switch to the third state 1003. The first movable end 310 can be located between the first protrusion 211 and the adjacent second protrusion 212 (e.g., the first second protrusion 212a), the second protrusion 212 being located upstream of the first protrusion 211 along the first direction M. At this time, the elastic reset member 500 can drive the trigger member 400 to reset and separate from the sensing member 2000.

[0129] The stirring rod can drive the transmission component 200 to continue rotating and cause the detection mechanism 1000 to enter the fourth state 1004. The first movable end 310 contacts at least one second protrusion 212 in sequence, and the trigger 400 can trigger the sensing component 2000 at least once. That is, the first movable end 310 contacts a second protrusion 212, which triggers the sensing component 2000 once.

[0130] Then, the detection mechanism 1000 can enter the fifth state 1005. When the detection mechanism 1000 is in the fifth state 1005, the first movable end 310 abuts against the locking trigger part 220, the trigger 400 contacts the sensing element 2000, and the locking member 600 locks the trigger 400 and the sensing element 2000, preventing the trigger 400 from rotating, and thus preventing the trigger 400 from separating from the sensing element 2000. That is, the detection mechanism 1000 can be in the terminated state, and the sensing element 2000 continuously outputs a detection signal. As a result, the image forming apparatus host can determine that the detection is over, and the image forming apparatus host can determine the model of the developing cartridge based on the number of times the sensing element 2000 generates a sensing signal and / or the duration of the sensing signal. When the detection mechanism 1000 switches to the fifth state 1005, under the action of the elastic reset member 500, the rotation path of the first movable end 310 and the locking trigger part 220 is misaligned. Correspondingly, the first movable end 310 can also be misaligned with the rotation path of the first protrusion 211 and the rotation path of the second protrusion 212. The transmission member 200 can continue to rotate under the drive of the stirring roller to ensure the smooth operation of the stirring roller.

[0131] like Figure 1 As shown, the embodiment also provides a developing cartridge, including a housing 3000, a stirring roller, and a detection mechanism 1000 provided in the embodiment. The stirring roller is rotatably mounted in the housing 3000. The mounting base 100 in the detection mechanism 1000 can be used as a side cover. The mounting base 100 is fixedly mounted to one end of the housing 3000 by means of snap-fit ​​or screw connection, with the transmission component 200 located on the side of the mounting base 100 facing the stirring roller. One end of the stirring roller can be inserted into the connecting shaft 700 and is drively connected to the connecting shaft 700.

[0132] The embodiment also provides an image forming device, which can include a host and a developing cartridge. The host can be provided with the sensing member 2000. The developing cartridge is detachably installed in the host. When the developing cartridge is installed in the host, the sensing member 2000 can be located on the rotation path of the second part 430 of the triggering member 400. In the embodiment, the sensing member 2000 can cooperate with the detection mechanism 1000 to detect whether the developing cartridge is installed in the host and the type of the developing cartridge.

[0133] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0134] Although the embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are exemplary, and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A detection mechanism, characterized by, Applied to a developing cartridge, the detection mechanism comprises: A transmission member capable of rotating in a first direction, a first protrusion and at least one second protrusion are arranged on the circumferential side of the transmission member, a locking trigger part is arranged on the side of the first protrusion away from the rotation axis of the transmission member; A dial lever, the dial lever is provided with a first movable end and a second movable end, the first movable end is located on the upstream side of the locking trigger part in the first direction and abuts against the first protrusion in the first state, the first movable end contacts the at least one second protrusion in the fourth state, and the first movable end abuts against the locking trigger part in the fifth state; A trigger member, the trigger member has a first part and a second part, wherein the first part is located on the rotation path of the second movable end, and the second part is used to trigger the inductor of the image forming device; and A locking member, the locking member can lock the trigger member to limit the rotation of the trigger member.

2. The detection mechanism of claim 1, wherein, The transmission member comprises two second protrusions arranged at intervals; The first protrusion and the first second protrusion have an included angle A1, wherein the included angle A1 is set to 63°±5°; The first protrusion and the second second protrusion have an included angle A2, wherein the included angle A2 is set to 75°±5°; The two second protrusions have an included angle A3, wherein the included angle A3 is set to 64°±5°.

3. The detection mechanism of claim 2, wherein, The first movable end sequentially contacts the two second protrusions in the fourth state.

4. The detection mechanism of claim 1, wherein, The transmission member comprises one second protrusion, and the second protrusion is arranged at an interval from the first protrusion.

5. The detection mechanism of claim 4, wherein, The second protrusion is a sector, and the corresponding angle of the second protrusion is a first preset angle, and the first preset angle is set to 169°±5°.

6. The detection mechanism of claim 5, wherein, The first protrusion and the second protrusion have an included angle B1 and an included angle B2, wherein the included angle B1 is set to 63°±5°, and the included angle B2 is set to 75°±5°.

7. The detection mechanism of claim 5 or 6, wherein, The first movable end contacts the second protrusion for a first preset time length in the fourth state.

8. The detection mechanism of claim 4, wherein, The second protrusion is a sector, and the corresponding angle of the second protrusion is a second preset angle, and the second preset angle is 60°±5°.

9. The detection mechanism of claim 8, wherein, The first protrusion and the second protrusion have an included angle C1 and an included angle C2, wherein the included angle C1 is set to 63°±5°, and the included angle C2 is set to 184°±5°.

10. The detection mechanism according to claim 8 or 9, characterized in that, The first movable end contacts the second protrusion for a second preset time length in the fourth state.

11. The detection mechanism of claim 1, wherein, The detection mechanism further comprises a connecting shaft for driving connection of a stirring roller in the developing cartridge, and the transmission member is sleeved on the circumferential side of the connecting shaft; A first pushing protrusion is arranged on the side of the connecting shaft protruding towards the transmission member, a second pushing protrusion is arranged on the side of the transmission member protruding towards the connecting shaft, and the second pushing protrusion is located on the rotation path of the first pushing protrusion.

12. The detection mechanism of claim 11, wherein, The first pushing protrusion rotates by a preset angle in the first direction in the second state and abuts against the second pushing protrusion to make the transmission member rotate.

13. The detection mechanism of claim 2, wherein, The first movable end is located within an included angle between the first convex part and the first second convex part in the third state.

14. The detection mechanism of claim 13, wherein, The detection mechanism further comprises an elastic reset member, which is in a stretching mode in the third state to separate the trigger member from the sensing member.

15. The detection mechanism of claim 14, wherein, The detection mechanism further comprises a mounting base, the transmission member and the lever are rotatably mounted on one side of the mounting base, one end of the elastic reset member is connected to the trigger member, and the other end of the elastic reset member is connected to the mounting base. When the trigger member triggers the sensing member, the elastic reset member is in a stretching mode. When the first movable end is misaligned with the first convex part and the second convex part, and the trigger member is separated from the sensing member, the elastic reset member is in a natural elongation mode.

16. The detection mechanism of claim 15, wherein, The trigger member further comprises a second connecting sleeve, the first part and the second part are protrudingly arranged on the periphery of the second connecting sleeve, the first part is provided with an insertion hole at one end close to the second connecting sleeve, and the locking member is arranged at the end of the second movable end close to the first part. When the detection mechanism is in the fifth state, the locking member is inserted into the insertion hole.

17. The detection mechanism of claim 16, wherein, An avoiding groove is arranged on one side of the second movable end facing the second connecting sleeve. When the detection mechanism is in the fifth state, the second connecting sleeve is inserted into the avoiding groove.

18. The detection mechanism of claim 14, wherein, The detection mechanism further comprises a mounting base, the transmission member and the lever are rotatably mounted on one side of the mounting base, and the locking member is rotatably mounted on the side of the mounting base away from the lever. When the detection mechanism is in the fifth state, a gap is formed between the side of the second part away from the sensing member and the mounting base, the locking member is inserted into the gap under the action of the elastic reset member, and is stopped at the side of the second part away from the sensing member.

19. The detection mechanism of claim 18, wherein, The mounting base comprises a mounting base body and a cover, the second part is arranged on the side of the mounting base body away from the transmission member, the cover is protrudingly arranged on the side of the mounting base body facing the second part, and covers at least part of the second part, and a notch is arranged on the periphery of the cover. When the detection mechanism is in the fifth state, the second part is entirely exposed outside the notch.

20. The detection mechanism of claim 19, wherein, When the first convex part or the second convex part abuts against the first movable end, at least part of the second part is exposed outside the notch, and the locking member abuts against the side of the second part away from the rotation axis of the trigger member.

21. The detection mechanism of claim 1, wherein, The locking trigger part comprises a first wall surface facing the upstream side of the locking trigger part along the first direction, and the first wall surface is arranged along a radial direction of the transmission member.

22. The detection mechanism of claim 21, wherein, The locking trigger part further comprises a second wall surface arranged opposite to the first wall surface. The second wall surface gradually inclines towards the first wall surface from one end close to the first convex part to the other end away from the first convex part.

23. A developing cartridge, comprising: The detection mechanism comprises a stirring roller and a detection mechanism according to any one of claims 1 to 22, and one end of the stirring roller is drivingly connected to the transmission member.

24. An image forming apparatus characterized by comprising: The detection mechanism as claimed in any one of claims 1 to 22, further comprising a sensing member located on a rotation path of the trigger member away from the second movable end.

Images