Detection mechanism, developing box and image forming device

Abstract

The invention 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 box and an image forming device. Background Art

[0002] The developer cartridge is an essential printing consumable in laser printers. After the laser printer has been working for a period of time, the toner in the developer cartridge will be consumed and the developer cartridge needs to be replaced. When replacing the developer cartridge, the printer host needs to check whether the developer cartridge is installed and the specifications of the developer cartridge.

[0003] In the related art, it is usually achieved by configuring a detection gear set and related structures on the developer box. However, the detection gear set requires precise coordination between multiple parts to achieve the detection function, which increases the assembly accuracy requirements and difficulty of the detection structure, affecting product production capacity. Summary of the invention

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

[0005] In a first aspect, the present application provides a detection mechanism, which is applied to a developing box, and the detection mechanism includes:

[0006] A transmission member capable of rotating about a first direction, wherein a first convex portion and at least one second convex portion are disposed on a circumferential side of the transmission member, and a locking trigger portion is protruding from a side of the first convex portion away from a rotation axis of the transmission member;

[0007] a lever, the lever being provided with a first movable end and a second movable end, the first movable end being located at an upstream side of the locking trigger portion along the first direction and abutting against the first protrusion in a first state, the first movable end being in contact with the at least one second protrusion in a fourth state, and the first movable end being abutting against the locking trigger portion in a fifth state;

[0008] a triggering member, the triggering member having a first portion and a second portion, wherein the first portion is located on a rotation path of the second movable end, and the second portion is used to trigger a sensing member of the image forming device; and

[0009] A locking member is 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 that are spaced apart from each other;

[0011] An angle A1 is formed between the first convex portion and the first of the second convex portions, wherein the angle A1 is set to 63°±5°;

[0012] An angle A2 is formed between the first convex portion and the second second convex portion, wherein the angle A2 is set to 75°±5°;

[0013] An angle A3 is formed between the two second protrusions, wherein the angle A3 is set to 64°±5°.

[0014] In some possible implementations, the first movable end contacts two of the second protrusions in sequence in the fourth state.

[0015] In some possible implementations, the transmission member includes a second protrusion, and the second protrusion is spaced apart from the first protrusion.

[0016] In some possible implementations, the second convex portion is fan-shaped, and the angle corresponding to the second convex portion is a first preset angle, and the first preset angle is set to 169°±5°.

[0017] In some possible implementations, an angle B1 and an angle B2 are defined between the first convex portion and the second convex portion, wherein the angle B1 is set to 63°±5°, and the angle B2 is set to 75°±5°.

[0018] In some possible implementations, the first movable end is in contact with the second protrusion for a first preset time period in the fourth state.

[0019] In some possible implementations, the second convex portion is fan-shaped, and the angle corresponding to the second convex portion is a second preset angle, and the second preset angle is 60°±5°.

[0020] In some possible implementations, an angle C1 and an angle C2 are defined between the first convex portion and the second convex portion, wherein the angle C1 is set to 63°±5°, and the angle C2 is set to 184°±5°.

[0021] In some possible implementations, the first movable end is in contact with the second protrusion for a second preset time period in the fourth state.

[0022] In some possible implementations, the detection mechanism further includes a connecting shaft, the connecting shaft is used to drive and connect the stirring roller in the developing box, and the transmission member is sleeved on the peripheral side of the connecting shaft;

[0023] A first pushing protrusion is protruding from one side of the connecting shaft toward the transmission member, and a second pushing protrusion is protruding from one side of the transmission member toward the connecting shaft. The second pushing protrusion is located on the rotation path of the first pushing protrusion.

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

[0025] In some possible implementations, the first movable end is located within an angle between the first protrusion and a first of the second protrusions in the third state.

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

[0027] In some possible implementations, the detection mechanism further includes a mounting seat, the transmission member and the shifting rod are rotatably mounted on one side of the mounting seat, 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 seat;

[0028] When the triggering member triggers the sensing member, the elastic reset member is in a stretching mode;

[0029] When the first movable end is misaligned with the first convex portion and the second convex portion, and the triggering member is separated from the sensing member, the elastic restoring member is in a natural extension mode.

[0030] In some possible implementations, the trigger member further includes a second connecting sleeve, the first portion and the second portion are both protrudingly arranged on the circumference of the second connecting sleeve, an inserting hole is provided at one end of the first portion close to the second connecting sleeve, and the locking member is arranged at an end of the second movable end close to the first portion;

[0031] When the detection mechanism is in the fifth state, the locking member is inserted into the insertion hole.

[0032] In some possible implementations, a side of the second movable end facing the second connecting sleeve is provided with an avoidance groove;

[0033] When the detection mechanism is in the fifth state, the second connecting sleeve is inserted into the avoidance groove.

[0034] In some possible implementations, the detection mechanism further includes a mounting seat, the transmission member and the shifting rod are rotatably mounted on one side of the mounting seat, and the locking member is rotatably mounted on a side of the mounting seat away from the shifting rod;

[0035] 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 seat, and the locking member is inserted into the gap under the action of the elastic reset member and stopped at the side of the second part away from the sensing member.

[0036] In some possible implementations, the mounting seat includes a mounting seat body and a cover shell, the second portion is disposed on a side of the mounting seat body away from the transmission member, the cover shell is protrudingly disposed on a side of the mounting seat body facing the second portion and covers at least a portion of the second portion, and a notch is formed on a peripheral side of the cover shell;

[0037] When the detection mechanism is in the fifth state, the second portion is completely exposed from the notch.

[0038] In some possible implementations, when the first protrusion or the second protrusion abuts against the first movable end, at least a portion of the second portion is exposed from the notch, and the locking member abuts against a side of the second portion away from the rotation axis of the trigger member.

[0039] In some possible implementations, the locking triggering portion includes a first wall surface, the first wall surface faces an upstream side of the locking triggering portion along the first direction, and the first wall surface is extended along a radial direction of the transmission member.

[0040] In some possible implementations, the locking trigger portion further includes a second wall surface disposed opposite to the first wall surface;

[0041] The second wall surface gradually inclines toward a direction approaching the first wall surface from an end close to the first protrusion to an end far away from the first protrusion.

[0042] In a second aspect, the present application further provides a developing box, comprising a stirring roller and the detection mechanism provided in the above embodiments, wherein one end of the stirring roller is transmission-connected to the transmission member.

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

[0044] Beneficial effects of the present application: The detection mechanism provided by the present application can drive the trigger member to move through the transmission member and the lever provided with a convex portion. During the processing and assembly of the detection mechanism, it is sufficient to ensure that the transmission member and the lever cooperate to transmit power to the trigger member, and that the trigger member can trigger the sensing member, which can significantly reduce the requirements for the processing accuracy and assembly accuracy of the detection mechanism, thereby reducing the difficulty of processing and assembly, improving the assembly efficiency of the developer box, and increasing production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 Shows a schematic diagram of the structure of the developing box in some embodiments;

[0047] Figure 2 Schematic diagrams of the three-dimensional structures of the detection mechanism and the sensing element in some embodiments are shown;

[0048] Figure 3 Shows a schematic diagram of the structure of the mounting base in some embodiments;

[0049] Figure 4 A schematic diagram of an exploded structure of a connecting shaft and a transmission member in some embodiments is shown;

[0050] Figure 5 Shown are schematic structural diagrams of triggering members in some embodiments;

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

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

[0053] Figure 8 A schematic diagram showing the structure of the detection mechanism in some embodiments when it is in the second state;

[0054] Fig. 9 A schematic diagram showing the structure of the detection mechanism in some embodiments when it is in the third state;

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

[0056] Fig.11A schematic diagram showing the structure of the detection mechanism in some embodiments when it is in the fourth state;

[0057] Fig.12 A schematic diagram showing the structure of the detection mechanism in some embodiments when it is in the fifth state;

[0058] Fig.13 Another structural schematic diagram of some embodiments when the detection mechanism is in the fifth state is shown;

[0059] Fig.14 Shows a schematic diagram of the structure of the detection mechanism in other embodiments;

[0060] Fig.15 Another structural schematic diagram of the detection mechanism in other embodiments is shown;

[0061] Fig.16 A schematic diagram showing the structure of the detection mechanism in some other embodiments when it is in the fifth state;

[0062] Fig.17 Another structural schematic diagram of another embodiment of the detection mechanism in the fifth state is shown;

[0063] Fig.18 A schematic diagram of dimension marking of a transmission member in some embodiments is shown;

[0064] Fig.19 A schematic diagram of dimension marking of another transmission member in some embodiments is shown;

[0065] Fig. 20 A schematic diagram of dimension marking of another transmission component in some embodiments is shown.

[0066] Description of main component symbols:

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

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

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

[0070] 300 - lever; 310 - first movable end; 320 - second movable end; 321 - avoidance groove;

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

[0072] 500-elastic reset member;

[0073] 600-locking member; 610-plug-in portion;

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

[0075] 800-gap;

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

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

[0078] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0079] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0081] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] like Figure 1 As shown, a Cartesian coordinate system is established, and it is defined that the length direction of the developing box is parallel to the direction indicated by the X axis, the width direction of the developing box is parallel to the direction indicated by the Y axis, and the height direction of the developing box is parallel to the direction indicated by the Z axis. It can be understood that the above definition is only for the convenience of understanding the relative position relationship of the various parts of the developing box, and should not be understood as a limitation to the present application.

[0084] like Figure 1 As shown, a detection mechanism 1000 is provided in the embodiment, which can be applied to the developing box of the image forming device. The detection mechanism 1000 can cooperate with the induction element 2000 in the main body of the image forming device to detect whether the developing box is installed and the model of the developing box.

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

[0086] In addition, the detection mechanism 1000 includes a transmission member 200, a lever 300, a trigger member 400 and a locking member 600. The transmission member 200, the lever 300 and the trigger member 400 are all rotatably arranged, and the rotation axis of the transmission member 200, the rotation axis of the lever 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 transmission member 200 is provided with a first protrusion 211 and at least one second protrusion 212 protruding from the periphery thereof, and the first protrusion 211 and at least one second protrusion 212 are arranged around the periphery of the rotation axis of the transmission member 200. In some embodiments, the first protrusion 211 and the second protrusion 212 may be fan-shaped.

[0088] In the embodiment, for different types of developing cartridges or developing cartridges of the same type but different capacities, the circumference of the transmission member 200 may be configured with different numbers of second protrusions 212 or second protrusions 212 with different angles. Accordingly, transmission members 200 of different specifications may correspond to developing cartridges of different types or the same type but different capacities.

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

[0090] In some embodiments, the lever 300 includes a first movable end 310 and a second movable end 320 that are linked to each other, and the first movable end 310 and the second movable end 320 are disposed around the rotation axis of the lever 300. It can be understood that when the first movable end 310 rotates around the rotation axis of the lever 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 convex portion 211 and the rotation path of the second convex portion 212. Correspondingly, 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 may be located on the rotation path of the second movable end 320, and the second portion 430 may be used to trigger the sensing element 2000. Specifically, when the detection mechanism 1000 is applied to a developing box and the developing box is installed in the main body of the image forming device, the sensing element 2000 is located on the rotation path of the second movable end 320.

[0092] like Figure 1 , Figures 6 to 13As shown, when the detection mechanism 1000 is applied to the developing box, the transmission member 200 can be arranged toward the side of the stirring roller in the developing box, and one end of the stirring roller is connected to the transmission member 200, so that the stirring roller can drive the transmission member 200 to rotate. In the embodiment, when the stirring roller is running, the transmission member 200 can be driven to rotate along the first direction M. After the developing box is installed in the main body of the image forming device, the end of the trigger member 400 away from the lever 300 can be opposite to the sensing member 2000, and the sensing member 2000 is located on the rotation path of the end of the trigger member 400 away from the lever 300.

[0093] In addition, after the developing cartridge is installed in the main body of the image forming device, the main body of the image forming device 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 lever 300 is abutted against the first convex portion 211, and is arranged in close contact with the upstream side of the locking trigger portion 220 along the first direction M. The trigger member 400 can contact 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. Therefore, it can also be determined that the developing cartridge has been installed on the main body of the image forming device.

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

[0095] Then, the detection mechanism 1000 may 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 portion 220, the trigger member 400 contacts the sensing member 2000, and the locking member 600 locks the trigger member 400 and the sensing member 2000 to prevent the trigger member 400 from rotating, thereby preventing the trigger member 400 from separating from the sensing member 2000, that is, the detection mechanism 1000 may be in a termination state, and the sensing member 2000 continuously outputs a detection signal, so that the image forming device host can determine that the detection is finished, and the image forming device host can determine the model or capacity of the developing cartridge according to the number of times the sensing member 2000 generates a sensing signal and / or the duration of the sensing signal. When the detection mechanism 1000 switches to the fifth state 1005, the first movable end 310 can be misaligned with the rotation path of the locking trigger part 220. 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 driven by the stirring roller to ensure the smooth operation of the stirring roller.

[0096] In the embodiment of the present application, the transmission member 200 provided with the first convex portion 211 and the second convex portion 212 cooperates with the lever 300 to drive the trigger member 400 to move. During the processing and assembly process of the detection mechanism 1000, it is sufficient to ensure that the transmission member 200 and the lever 300 cooperate to transmit power to the trigger member 400, and enable the trigger member 400 to trigger the sensing member 2000. Compared with the transmission of power by a gear set, the detection mechanism 1000 provided in the embodiment of the present application can significantly reduce the requirements for the processing accuracy and assembly accuracy of the detection mechanism 1000, thereby reducing the difficulty of processing and assembly, improving the assembly efficiency of the developer box, and improving production capacity.

[0097] like Figures 2 to 4 , Figure 6 As shown, 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 attached to the mounting seat 100 for assembly. In some embodiments, the mounting seat 100 can be a side cover in a developing box.

[0098] In other embodiments, the mounting seat 100 may also be a part of the shell 3000 in the developer box, or other structures.

[0099] In some embodiments, the transmission member 200 and the lever 300 can be rotatably mounted on a side of the mounting base 100 facing the stirring roller in the developing box.

[0100] like Figures 2 to 4 , Figure 6 As shown, in some embodiments, the mounting base 100 may include a mounting base body 110. The detection mechanism 1000 also includes a connecting shaft 700, which is rotatably mounted on a side of the mounting base 100 close to the transmission member 200. One end of the stirring roller may be inserted into the connecting shaft 700, and the stirring roller may be matched with the connecting shaft 700 in the upper limit position of the rotation direction of the connecting shaft 700. Thus, the connecting shaft 700 may be driven by the stirring roller to rotate synchronously. In some embodiments, the stirring roller and the connecting shaft 700 may be non-circular.

[0101] Of course, in other embodiments, the stirring roller and the connecting shaft 700 may be relatively fixed by means of screw connection or clamping, so that the connecting shaft 700 may rotate synchronously driven 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 may be sleeved on the circumference of the connecting shaft 700. In addition, a circular ring-shaped positioning protrusion 111 may be provided on the side of the mounting seat 100 facing the connecting shaft 700. The positioning protrusion 111 may be arranged around the circumference of the connecting shaft 700 and be coaxial with the connecting shaft 700. An annular supporting edge 240 is protruded from the inner wall of one end of the first connecting sleeve 230 close to the mounting seat 100. The supporting edge 240 may be sleeved on the circumference of the positioning protrusion 111, and the inner wall of the supporting edge 240 may be slidably fitted with the circumference surface of the positioning protrusion 111. Thus, the first connecting sleeve 230 may be coaxially arranged with the connecting shaft 700, and the first connecting sleeve 230 may be spaced apart from the connecting shaft 700.

[0103] In some embodiments, a first pushing protrusion 710 is protruded from one side of the connecting shaft 700 toward the first connecting sleeve 230. A second pushing protrusion 231 is protruded from one side of the first connecting sleeve 230 toward 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 may push the second pushing protrusion 231 to rotate, thereby driving the transmission member 200 to rotate along with the connecting shaft 700.

[0104] In other embodiments, the first connecting sleeve 230 may also be fixedly sleeved on the peripheral side of the connecting shaft 700 by bonding or interference fit. When the stirring roller drives the connecting shaft 700 to rotate, the connecting shaft 700 may drive the transmission member 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 be close to or attached to the downstream side of the second pushing protrusion 231 along the first direction M. In addition, 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 along the first direction M by a preset angle and abut against the upstream side of the second pushing protrusion 231 along the first direction M. During the 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 may be an integral structure with the first connecting sleeve 230. The first protrusion 211 and the second protrusion 212 may be arranged around the circumference of the first connecting sleeve 230, and the two adjacent protrusions may be arranged at intervals. Among them, the second protrusion 212 may be one or two equal numbers. The locking trigger portion 220 may be protrudingly arranged on the side of the first protrusion 211 away from the first connecting sleeve 230, and the locking trigger portion 220 may be an integral structure with the first protrusion 211. In some embodiments, along the first direction M, the locking trigger portion 220 may be arranged close to one end of the first protrusion 211.

[0107] In some other embodiments, along the first direction M, the locking trigger portion 220 may also be located in the middle of the first protrusion 211 .

[0108] In some embodiments, the transmission member 200 of the high-capacity developing box may include a first protrusion 211 and two second protrusions 212, and the two second protrusions 212 may include a first second protrusion 212a and a second second protrusion 212b. The first second protrusion 212a may be arranged at intervals on the upstream side of the first protrusion 211 along the first direction M, and the second second protrusion 212b may be arranged at intervals on the downstream side of the first protrusion 211 along the first direction M. The angle corresponding to the first protrusion 211 may be set to 53°±5°. For example, the angle corresponding to the first protrusion 211 may be set to 48°, 50°, 53°, 55°, 58°, or any other angle between 48° and 58°. Along the first direction M, the angle A1 between the first convex portion 211 and the first second convex portion 212a can be set to 63°±5°, and the corresponding angle of the first second convex portion 212a can be 60°±5°. For example, the angle corresponding to the first second convex portion 212a can be set to 55°, 58°, 60°, 63°, 65°, or any other angle from 55° to 65°. For example, the angle A1 between the first convex portion 211 and the first second convex portion 212a can be set to 58°, 60°, 63°, 65°, 68°, or any other angle from 58° to 68°. The angle A2 between the first convex portion 211 and the second second convex portion 212b can be set to 75°±5°, and the angle corresponding to the second second convex portion 212b is 45°±5°. For example, the angle corresponding to the second second convex portion 212b can be set to 40°, 42°, 45°, 48°, 50°, or any other angle between 40° and 50°. For example, the angle A2 between the first convex portion 211 and the second second convex portion 212b can be set to 70°, 72°, 75°, 78°, 80°, or any other angle between 70° and 80°. The angle A3 between the two second convex portions 212 is set to 64°±5°. For example, the angle A3 between the two second convex portions 212 is set to 59°, 61°, 64°, 67°, 69°, or any other angle between 59° and 69°. During the operation of the detection mechanism 1000 , the first movable end 310 may contact the two second protrusions 212 in sequence in the fourth state 1004 , and cause the triggering member 400 to trigger the sensing member 2000 twice.

[0109] The transmission member 200 of the medium-capacity developer box may include a first protrusion 211 and a second protrusion 212 arranged at intervals. 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 from 48° to 58°. Along the first direction M, the angle B1 between the upstream side of the first protrusion 211 and the second protrusion 212 is set to 63°±5°. Exemplarily, the 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 from 58° to 68°. The angle B2 between the downstream side of the first protrusion 211 and the second protrusion 212 is set to 75°±5°. Exemplarily, the angle B2 between the downstream side of the first convex portion 211 and the second convex portion 212 is set to 70°, 72°, 75°, 78°, 80° or any other angle between 70° and 80°. The angle corresponding to the second convex portion 212 is a first preset angle, and the first preset angle is set to 169°±5°. Exemplarily, the first preset angle can be set to 164°, 168°, 169°, 172°, 174° or any other angle between 164° and 174°. During the operation of the detection mechanism 1000, the first movable end 310 can contact the second convex portion 212 for a first preset time in the fourth state 1004, and cause the trigger member 400 to trigger the sensing member 2000 to generate a sensing signal of the first preset time.

[0110] The transmission member 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 from 48° to 58°. Along the first direction M, the angle C1 between the upstream side of the first protrusion 211 and the second protrusion 212 may be set to 63°±5°. Exemplarily, the 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 from 58° to 68°. The angle C2 between the downstream side of the first protrusion 211 and the second protrusion 212 may be set to 184°±5°. Exemplarily, the angle C2 between the downstream side of the first convex portion 211 and the second convex portion 212 can be set to 179°, 182°, 184°, 187°, 189° or any other angle between 179° and 189°. The angle corresponding to the second convex portion 212 is the second preset angle, and the second preset angle can be set to 60°±5°. Exemplarily, 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 convex portion 212 for a second preset time in the fourth state 1004, and cause the trigger member 400 to trigger the sensing member 2000 to generate a sensing signal of the second preset time. In some embodiments, the first preset time may be longer than the second preset time.

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

[0112] In the embodiment, the second wall surface 222 may be inclined relative to the first wall surface 221. Specifically, the second wall surface 222 may be gradually inclined toward the first wall surface 221 from one end close to the first convex portion 211 to one end away from the first convex portion 211. Thus, when the second wall surface 222 contacts the first movable end 310, it is convenient for the first movable end 310 to reach the top of the locking trigger portion 220 through the second wall surface 222 and abut against the top of the locking trigger portion 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 a side of the transmission member 200 close to the sensing member 2000. The first movable end 310 may be located on a side of the second movable end 320 close to the transmission member 200. The first movable end 310 may be located on a rotation path of the first convex portion 211 and the second convex portion 212 in the transmission member 200, and accordingly, the first movable end 310 is also located on a rotation path of the locking trigger portion 220. The second movable end 320 may be disposed toward a side of the sensing member 2000.

[0114] In the embodiment, the detection mechanism 1000 further includes a third state 1003. In the third state 1003, the first movable end 310 may be located between the first convex portion 211 and the adjacent second convex portion 212, and the second convex portion 212 is located on the upstream side of the first convex portion 211 along the first direction M. Exemplarily, the first movable end 310 may be located between the first convex portion 211 and the first second convex portion 212a in the third state 1003. At this time, the trigger member 400 may be separated from the sensing member 2000. In the embodiment, the detection mechanism 1000 may switch to the first state 1001, the second state 1002, the third state 1003, the fourth state 1004 and the fifth state 1005 in sequence.

[0115] like Figure 1 , Figures 5 to 7 As shown, the trigger member 400 further includes a second connecting sleeve 410, and the second connecting sleeve 410, the first part 420 and the second part 430 may be an integral structure. The second connecting sleeve 410 may be rotatably mounted on the mounting seat 100. In some embodiments, the second connecting sleeve 410 may be arranged in parallel on one side of the lever 300 along the width direction of the developing cartridge. And the rotation axis of the second connecting sleeve 410 may be at approximately the same height as the rotation axis of the lever 300.

[0116] In the embodiment, the first portion 420 and the second portion 430 are both protruded from the circumference of the second connecting sleeve 410, and the first portion 420 and the second portion 430 can be staggered along the axial direction of the second connecting sleeve 410. In some embodiments, the second connecting sleeve 410 can be passed through the mounting seat body 110 along the length direction of the developing cartridge, and the two ends of the second connecting sleeve 410 can be protruded from the two sides of the mounting seat body 110 in a one-to-one correspondence.

[0117] The first portion 420 may be connected to an end of the second connecting sleeve 410 close to the lever 300. That is, the first portion 420 may be located on the side of the mounting base body 110 facing the lever 300, and the first portion 420 may be located on the rotation path of the second movable end 320 in the lever 300. When the lever 300 rotates around the second direction N driven by the transmission member 200, the second movable end 320 may push the first portion 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 an end of the second connecting sleeve 410 away from the lever 300, that is, the second portion 430 may be located on a side of the mounting base body 110 away from the lever 300. In the embodiment, the second portion 430 may be opposite to the sensing member 2000 in the main body of the image forming device, and the rotation path of the second portion 430 may pass through the sensing member 2000. Thus, when the lever 300 pushes the trigger member 400 to rotate around the second direction N, the second portion 430 may contact and trigger the sensing member 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 can be a spring. One end of the elastic reset member 500 can be fixedly connected to the mounting seat 100, and the other end of the elastic reset member 500 can be fixedly connected to the trigger member 400. For example, the elastic reset member 500 can be fixedly connected to the first part 420. In addition, along the width direction of the developing box, the connection position of the elastic reset member 500 and the mounting seat 100 can 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 convex portion 211 and the second convex portion 212 of the transmission member 200, the trigger member 400 is separated from the sensing member 2000, and the elastic reset member 500 can be in a natural extension mode. When the first convex portion 211 or the second convex portion 212 abuts against the first movable end 310 and the trigger member 400 contacts the sensing member 2000, the elastic reset member 500 can be in a stretching mode.

[0120] In other embodiments, the elastic restoring 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 convex portion 211 and the second convex portion 212, for example, when the detection mechanism 1000 is in the third state 1003, the elastic reset member 500 may be in the stretching mode, and the trigger member 400 may be rotated and reset along the first direction M under the action of the elastic reset member 500, and the second portion 430 may move away from the sensing member 2000, that is, the second portion 430 may be separated from the sensing member 2000. At the same time, the trigger member 400 may drive the lever 300 to rotate and reset along the first direction M.

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

[0123] In some embodiments, a plug hole 421 may be provided at one end of the first portion 420 close to the second connection sleeve 410. An end of the second movable end 320 close to the trigger member 400 may be used as a locking member 600. A side of the second movable end 320 facing the trigger member 400 may be provided with an avoidance groove 321 adapted to the second connection sleeve 410.

[0124] When the transmission member 200 rotates until the end surface of the locking trigger portion 220 away from the first connecting sleeve 230 abuts against the end surface of the first movable end 310 toward the transmission member 200, the transmission member 200 can drive the lever 300 to rotate a larger angle along the second direction N. At the same time, the lever 300 can also drive the trigger member 400 to rotate a larger angle along the second direction N. The second movable end 320, which is used as an end of the locking member 600, can be inserted and clamped in the plug hole 421, and part of the second connecting sleeve 410 can be accommodated in the avoidance groove 321. The trigger member 400 and the lever 300 can be locked under the action of the elastic reset member 500. In this way, the trigger member 400 and the lever 300 can be locked, the second part 430 can always maintain a state of 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. 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 rotate smoothly under the drive of the stirring roller.

[0125] like Figure 2 , Figures 14 to 17As shown, in other embodiments, the locking member 600 may be installed at a side edge position of the mounting seat body 110. Along the width direction of the developing box, 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 seat 100 also includes a cover 120 protrudingly arranged on the side of the mounting seat body 110 away from the lever 300, and the cover 120 may be covered on the side of the second part 430 away from the first part 420. And a notch 121 may be opened on the side of the cover 120 facing the sensor 2000. When the trigger 400 rotates along the second direction N, the second part 430 may be gradually exposed through the notch 121 and contact the sensor 2000. In the embodiment, the locking member 600 is further provided with a plug-in portion 610, which can be located on the side of the mounting seat body 110 away from the lever 300 and disposed toward the notch 121 of the housing 120. In the process of the first convex portion 211 or the second convex portion 212 abutting against the lever 300, the plug-in portion 610 can abut against the side of the second portion 430 away from the second connecting sleeve 410, that is, the plug-in portion 610 abuts against the side of the second portion 430 away from the rotation axis of the trigger member 400. When the locking trigger portion 220 abuts against the lever 300, the entirety of the second portion 430 can be exposed to the notch 121, and a gap 800 can be formed between the end of the second portion 430 away from the sensing member 2000 and the housing 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 portion 430 can always maintain a state of 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, in use, after the developing cartridge is installed in the main body of the image forming apparatus, the detection mechanism 1000 can be initialized, that is, the detection mechanism 1000 is in the first state 1001. The first movable end 310 of the lever 300 is abutted against the first convex portion 211 and is closely disposed on the upstream side of the locking trigger portion 220 along the first direction M.

[0127] The stirring roller is started. In the second state 1002 , the stirring roller can drive the connecting shaft 700 to rotate along the first direction M by a preset angle, and make the first pushing protrusion 710 abut against the second pushing protrusion 231 along the upstream side of the first direction M.

[0128] Afterwards, the connecting shaft 700 can transmit the power of the stirring rod to the transmission member 200 and drive the transmission member 200 to rotate along the first direction M, and the detection mechanism 1000 can be switched to the third state 1003. The first movable end 310 can be located between the first protrusion 211 and the adjacent second protrusion 212 (for example, the first second protrusion 212a), and the second protrusion 212 is located on the upstream side 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 member 200 to continue rotating and make the detection mechanism 1000 enter the fourth state 1004. The first movable end 310 contacts with at least one second protrusion 212 in sequence. The trigger member 400 can trigger the sensing member 2000 at least once, that is, the first movable end 310 contacts with a second protrusion 212 to trigger the sensing member 2000 once.

[0130] Then, the detection mechanism 1000 may 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 portion 220, the trigger member 400 contacts the sensing member 2000, and the locking member 600 locks the detection trigger member 400 and the sensing member 2000, preventing the trigger member 400 from rotating, thereby preventing the trigger member 400 from separating from the sensing member 2000, that is, the detection mechanism 1000 may be in a termination state, and the sensing member 2000 continuously outputs a detection signal, so that the image forming device host can determine that the detection is finished, and the image forming device host can determine the model of the developing cartridge according to the number of times the sensing member 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 first movable end 310 is misaligned with the rotation path of the locking trigger portion 220. Correspondingly, the first movable end 310 may 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 may continue to rotate driven by the stirring roller to ensure the smooth operation of the stirring roller.

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

[0132] The embodiment also provides an image forming device, which may include a main body and a developing box. The main body may be equipped with a sensing member 2000. The developing box may be detachably installed in the main body. When the developing box is installed in the main body, the sensing member 2000 may be located on the rotation path of the second part 430 in the trigger member 400. In the embodiment, the sensing member 2000 may cooperate with the detection mechanism 1000 to detect whether the developing box is installed in the main body and the model of the developing box.

[0133] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0134] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A detection mechanism, characterized in that: Applied in a developing box, the detection mechanism includes: A transmission member capable of rotating about a first direction, wherein a first convex portion and at least one second convex portion are disposed on a circumferential side of the transmission member, and a locking trigger portion is protruding from a side of the first convex portion away from a rotation axis of the transmission member; a lever, the lever being provided with a first movable end and a second movable end, the first movable end being located at an upstream side of the locking trigger portion along the first direction and abutting against the first protrusion in a first state, the first movable end being in contact with the at least one second protrusion in a fourth state, and the first movable end being abutting against the locking trigger portion in a fifth state; a triggering member, the triggering member having a first portion and a second portion, wherein the first portion is located on a rotation path of the second movable end, and the second portion is used to trigger a sensing member of the image forming device; and A locking member is capable of locking the trigger member to limit the rotation of the trigger member.

2. The detection mechanism according to claim 1, characterized in that: The transmission member comprises two second protrusions arranged at intervals; An angle A1 is formed between the first convex portion and the first of the second convex portions, wherein the angle A1 is set to 63°±5°; An angle A2 is formed between the first convex portion and the second second convex portion, wherein the angle A2 is set to 75°±5°; An angle A3 is formed between the two second protrusions, wherein the angle A3 is set to 64°±5°.

3. The detection mechanism according to claim 2, characterized in that: The first movable end contacts two of the second protrusions in sequence in the fourth state.

4. The detection mechanism according to claim 1, characterized in that: The transmission member includes a second convex portion, and the second convex portion is spaced apart from the first convex portion.

5. The detection mechanism according to claim 4, characterized in that: The second convex portion is fan-shaped, and the angle corresponding to the second convex portion is a first preset angle, and the first preset angle is set to 169°±5°.

6. The detection mechanism according to claim 5, characterized in that: An included angle B1 and an included angle B2 are defined between the first convex portion and the second convex portion, wherein the included angle B1 is set to 63°±5°, and the included angle B2 is set to 75°±5°.

7. The detection mechanism according to claim 5 or 6, characterized in that: The first movable end is in contact with the second protrusion for a first preset time period in the fourth state.

8. The detection mechanism according to claim 4, characterized in that: The second convex portion is fan-shaped, and the angle corresponding to the second convex portion is a second preset angle, and the second preset angle is 60°±5°.

9. The detection mechanism according to claim 8, characterized in that: An included angle C1 and an included angle C2 are defined between the first convex portion and the second convex portion, 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 is in contact with the second protrusion for a second preset time period in the fourth state.

11. The detection mechanism according to claim 1, characterized in that: The detection mechanism further comprises a connecting shaft, the connecting shaft is used for transmission connection with the stirring roller in the developing box, and the transmission member is sleeved on the peripheral side of the connecting shaft; A first pushing protrusion is protruding from one side of the connecting shaft toward the transmission member, and a second pushing protrusion is protruding from one side of the transmission member toward the connecting shaft. The second pushing protrusion is located on the rotation path of the first pushing protrusion.

12. The detection mechanism according to claim 11, characterized in that: In the second state, the first pushing protrusion rotates by a preset angle along a first direction and abuts against the second pushing protrusion to rotate the transmission member.

13. The detection mechanism according to claim 2, characterized in that: The first movable end is located within an angle between the first protrusion and a first of the second protrusions in the third state.

14. The detection mechanism according to claim 13, characterized in that: The detection mechanism further comprises an elastic reset member, and the elastic reset member is in a stretching mode in the third state so as to separate the trigger member from the sensing member.

15. The detection mechanism according to claim 14, characterized in that: The detection mechanism further comprises a mounting seat, the transmission member and the shifting rod are rotatably mounted on one side of the mounting seat, 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 seat; When the triggering 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 portion and the second convex portion, and the triggering member is separated from the sensing member, the elastic restoring member is in a natural extension mode.

16. The detection mechanism according to claim 15, characterized in that: The trigger member further comprises a second connecting sleeve, the first part and the second part are both protrudingly arranged on the circumference of the second connecting sleeve, an inserting hole is provided at one end of the first part 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 according to claim 16, characterized in that: A avoidance groove is provided on a 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 avoidance groove.

18. The detection mechanism according to claim 14, characterized in that: The detection mechanism further comprises a mounting seat, the transmission member and the shifting rod are rotatably mounted on one side of the mounting seat, and the locking member is rotatably mounted on a side of the mounting seat away from the shifting rod; 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 seat, and the locking member is inserted into the gap under the action of the elastic reset member and stopped at the side of the second part away from the sensing member.

19. The detection mechanism according to claim 18, characterized in that: The mounting seat comprises a mounting seat body and a cover shell, the second part is arranged on a side of the mounting seat body away from the transmission member, the cover shell is protrudingly arranged on a side of the mounting seat body facing the second part and covers at least a part of the second part, and a notch is opened on the peripheral side of the cover shell; When the detection mechanism is in the fifth state, the second portion is completely exposed from the notch.

20. The detection mechanism according to claim 19, characterized in that: When the first convex portion or the second convex portion abuts against the first movable end, at least a portion of the second portion is exposed from the notch, and the locking member abuts against a side of the second portion away from the rotation axis of the trigger member.

21. The detection mechanism according to claim 1, characterized in that: The locking triggering portion includes a first wall surface, the first wall surface faces an upstream side of the locking triggering portion along the first direction, and the first wall surface is extended along a radial direction of the transmission member.

22. The detection mechanism according to claim 21, characterized in that: The locking triggering portion further includes a second wall surface disposed opposite to the first wall surface; The second wall surface gradually inclines toward a direction approaching the first wall surface from an end close to the first protrusion to an end far away from the first protrusion.

23. A developing cartridge, characterized in that: It comprises a stirring roller and a detection mechanism as described in any one of claims 1 to 22, wherein one end of the stirring roller is transmission-connected to the transmission member.

24. An image forming device, characterized in that: It comprises a sensing element and a detection mechanism as claimed in any one of claims 1 to 22, wherein the sensing element is located on a rotation path of the trigger element away from the second movable end.

Images